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From 16e349f80eec982f301265bebd66fd08f3b0dce1 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Fri, 30 Sep 2011 14:37:36 +0200
Subject: [PATCH 47/73] MIPS: lantiq: adds dwc_otg
---
drivers/usb/Kconfig | 2 +
drivers/usb/Makefile | 2 +
drivers/usb/core/hub.c | 4 +-
drivers/usb/dwc_otg/Kconfig | 37 +
drivers/usb/dwc_otg/Makefile | 39 +
drivers/usb/dwc_otg/dwc_otg_attr.c | 802 ++++++++
drivers/usb/dwc_otg/dwc_otg_attr.h | 67 +
drivers/usb/dwc_otg/dwc_otg_cil.c | 3025 +++++++++++++++++++++++++++++++
drivers/usb/dwc_otg/dwc_otg_cil.h | 911 ++++++++++
drivers/usb/dwc_otg/dwc_otg_cil_ifx.h | 58 +
drivers/usb/dwc_otg/dwc_otg_cil_intr.c | 708 ++++++++
drivers/usb/dwc_otg/dwc_otg_driver.c | 1274 +++++++++++++
drivers/usb/dwc_otg/dwc_otg_driver.h | 84 +
drivers/usb/dwc_otg/dwc_otg_hcd.c | 2870 +++++++++++++++++++++++++++++
drivers/usb/dwc_otg/dwc_otg_hcd.h | 676 +++++++
drivers/usb/dwc_otg/dwc_otg_hcd_intr.c | 1841 +++++++++++++++++++
drivers/usb/dwc_otg/dwc_otg_hcd_queue.c | 794 ++++++++
drivers/usb/dwc_otg/dwc_otg_ifx.c | 100 +
drivers/usb/dwc_otg/dwc_otg_ifx.h | 85 +
drivers/usb/dwc_otg/dwc_otg_plat.h | 269 +++
drivers/usb/dwc_otg/dwc_otg_regs.h | 1797 ++++++++++++++++++
21 files changed, 15443 insertions(+), 2 deletions(-)
create mode 100644 drivers/usb/dwc_otg/Kconfig
create mode 100644 drivers/usb/dwc_otg/Makefile
create mode 100644 drivers/usb/dwc_otg/dwc_otg_attr.c
create mode 100644 drivers/usb/dwc_otg/dwc_otg_attr.h
create mode 100644 drivers/usb/dwc_otg/dwc_otg_cil.c
create mode 100644 drivers/usb/dwc_otg/dwc_otg_cil.h
create mode 100644 drivers/usb/dwc_otg/dwc_otg_cil_ifx.h
create mode 100644 drivers/usb/dwc_otg/dwc_otg_cil_intr.c
create mode 100644 drivers/usb/dwc_otg/dwc_otg_driver.c
create mode 100644 drivers/usb/dwc_otg/dwc_otg_driver.h
create mode 100644 drivers/usb/dwc_otg/dwc_otg_hcd.c
create mode 100644 drivers/usb/dwc_otg/dwc_otg_hcd.h
create mode 100644 drivers/usb/dwc_otg/dwc_otg_hcd_intr.c
create mode 100644 drivers/usb/dwc_otg/dwc_otg_hcd_queue.c
create mode 100644 drivers/usb/dwc_otg/dwc_otg_ifx.c
create mode 100644 drivers/usb/dwc_otg/dwc_otg_ifx.h
create mode 100644 drivers/usb/dwc_otg/dwc_otg_plat.h
create mode 100644 drivers/usb/dwc_otg/dwc_otg_regs.h
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -129,6 +129,8 @@ source "drivers/usb/wusbcore/Kconfig"
source "drivers/usb/host/Kconfig"
+source "drivers/usb/dwc_otg/Kconfig"
+
source "drivers/usb/musb/Kconfig"
source "drivers/usb/renesas_usbhs/Kconfig"
--- a/drivers/usb/Makefile
+++ b/drivers/usb/Makefile
@@ -30,6 +30,8 @@ obj-$(CONFIG_USB_C67X00_HCD) += c67x00/
obj-$(CONFIG_USB_WUSB) += wusbcore/
+obj-$(CONFIG_DWC_OTG) += dwc_otg/
+
obj-$(CONFIG_USB_ACM) += class/
obj-$(CONFIG_USB_PRINTER) += class/
obj-$(CONFIG_USB_WDM) += class/
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2939,11 +2939,11 @@ hub_port_init (struct usb_hub *hub, stru
udev->ttport = hdev->ttport;
} else if (udev->speed != USB_SPEED_HIGH
&& hdev->speed == USB_SPEED_HIGH) {
- if (!hub->tt.hub) {
+/* if (!hub->tt.hub) {
dev_err(&udev->dev, "parent hub has no TT\n");
retval = -EINVAL;
goto fail;
- }
+ }*/
udev->tt = &hub->tt;
udev->ttport = port1;
}
--- /dev/null
+++ b/drivers/usb/dwc_otg/Kconfig
@@ -0,0 +1,37 @@
+config DWC_OTG
+ tristate "Synopsis DWC_OTG support"
+ depends on USB
+ help
+ This driver supports Synopsis DWC_OTG IP core
+ embebbed on many SOCs (ralink, infineon, etc)
+
+choice
+ prompt "USB Operation Mode"
+ depends on DWC_OTG
+ default DWC_OTG_HOST_ONLY
+
+config DWC_OTG_HOST_ONLY
+ bool "HOST ONLY MODE"
+ depends on DWC_OTG
+
+#config DWC_OTG_DEVICE_ONLY
+# bool "DEVICE ONLY MODE"
+# depends on DWC_OTG
+endchoice
+
+choice
+ prompt "Platform"
+ depends on DWC_OTG
+ default DWC_OTG_LANTIQ
+
+config DWC_OTG_LANTIQ
+ bool "Lantiq"
+ depends on LANTIQ
+ help
+ Danube USB Host Controller
+ platform support
+endchoice
+
+config DWC_OTG_DEBUG
+ bool "Enable debug mode"
+ depends on DWC_OTG
--- /dev/null
+++ b/drivers/usb/dwc_otg/Makefile
@@ -0,0 +1,39 @@
+#
+# Makefile for DWC_otg Highspeed USB controller driver
+#
+
+ifeq ($(CONFIG_DWC_OTG_DEBUG),y)
+EXTRA_CFLAGS += -DDEBUG
+endif
+
+# Use one of the following flags to compile the software in host-only or
+# device-only mode based on the configuration selected by the user
+ifeq ($(CONFIG_DWC_OTG_HOST_ONLY),y)
+ EXTRA_CFLAGS += -DDWC_OTG_HOST_ONLY -DDWC_HOST_ONLY
+ EXTRA_CFLAGS += -DDWC_OTG_EN_ISOC -DDWC_EN_ISOC
+else ifeq ($(CONFIG_DWC_OTG_DEVICE_ONLY),y)
+ EXTRA_CFLAGS += -DDWC_OTG_DEVICE_ONLY
+else
+ EXTRA_CFLAGS += -DDWC_OTG_MODE
+endif
+
+# EXTRA_CFLAGS += -DDWC_HS_ELECT_TST
+# EXTRA_CFLAGS += -DDWC_OTG_EXT_CHG_PUMP
+
+ifeq ($(CONFIG_DWC_OTG_LANTIQ),y)
+ EXTRA_CFLAGS += -Dlinux -D__LINUX__ -DDWC_OTG_IFX -DDWC_OTG_HOST_ONLY -DDWC_HOST_ONLY -D__KERNEL__
+endif
+ifeq ($(CONFIG_DWC_OTG_LANTIQ),m)
+ EXTRA_CFLAGS += -Dlinux -D__LINUX__ -DDWC_OTG_IFX -DDWC_HOST_ONLY -DMODULE -D__KERNEL__ -DDEBUG
+endif
+
+obj-$(CONFIG_DWC_OTG) := dwc_otg.o
+dwc_otg-objs := dwc_otg_hcd.o dwc_otg_hcd_intr.o dwc_otg_hcd_queue.o
+#dwc_otg-objs += dwc_otg_pcd.o dwc_otg_pcd_intr.o
+dwc_otg-objs += dwc_otg_attr.o
+dwc_otg-objs += dwc_otg_cil.o dwc_otg_cil_intr.o
+dwc_otg-objs += dwc_otg_ifx.o
+dwc_otg-objs += dwc_otg_driver.o
+
+#obj-$(CONFIG_DWC_OTG_IFX) := dwc_otg_ifx.o
+#dwc_otg_ifx-objs := dwc_otg_ifx.o
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_attr.c
@@ -0,0 +1,802 @@
+/* ==========================================================================
+ * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/drivers/dwc_otg_attr.c $
+ * $Revision: 1.1.1.1 $
+ * $Date: 2009-04-17 06:15:34 $
+ * $Change: 537387 $
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+
+/** @file
+ *
+ * The diagnostic interface will provide access to the controller for
+ * bringing up the hardware and testing. The Linux driver attributes
+ * feature will be used to provide the Linux Diagnostic
+ * Interface. These attributes are accessed through sysfs.
+ */
+
+/** @page "Linux Module Attributes"
+ *
+ * The Linux module attributes feature is used to provide the Linux
+ * Diagnostic Interface. These attributes are accessed through sysfs.
+ * The diagnostic interface will provide access to the controller for
+ * bringing up the hardware and testing.
+
+
+ The following table shows the attributes.
+ <table>
+ <tr>
+ <td><b> Name</b></td>
+ <td><b> Description</b></td>
+ <td><b> Access</b></td>
+ </tr>
+
+ <tr>
+ <td> mode </td>
+ <td> Returns the current mode: 0 for device mode, 1 for host mode</td>
+ <td> Read</td>
+ </tr>
+
+ <tr>
+ <td> hnpcapable </td>
+ <td> Gets or sets the "HNP-capable" bit in the Core USB Configuraton Register.
+ Read returns the current value.</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> srpcapable </td>
+ <td> Gets or sets the "SRP-capable" bit in the Core USB Configuraton Register.
+ Read returns the current value.</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> hnp </td>
+ <td> Initiates the Host Negotiation Protocol. Read returns the status.</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> srp </td>
+ <td> Initiates the Session Request Protocol. Read returns the status.</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> buspower </td>
+ <td> Gets or sets the Power State of the bus (0 - Off or 1 - On)</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> bussuspend </td>
+ <td> Suspends the USB bus.</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> busconnected </td>
+ <td> Gets the connection status of the bus</td>
+ <td> Read</td>
+ </tr>
+
+ <tr>
+ <td> gotgctl </td>
+ <td> Gets or sets the Core Control Status Register.</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> gusbcfg </td>
+ <td> Gets or sets the Core USB Configuration Register</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> grxfsiz </td>
+ <td> Gets or sets the Receive FIFO Size Register</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> gnptxfsiz </td>
+ <td> Gets or sets the non-periodic Transmit Size Register</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> gpvndctl </td>
+ <td> Gets or sets the PHY Vendor Control Register</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> ggpio </td>
+ <td> Gets the value in the lower 16-bits of the General Purpose IO Register
+ or sets the upper 16 bits.</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> guid </td>
+ <td> Gets or sets the value of the User ID Register</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> gsnpsid </td>
+ <td> Gets the value of the Synopsys ID Regester</td>
+ <td> Read</td>
+ </tr>
+
+ <tr>
+ <td> devspeed </td>
+ <td> Gets or sets the device speed setting in the DCFG register</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> enumspeed </td>
+ <td> Gets the device enumeration Speed.</td>
+ <td> Read</td>
+ </tr>
+
+ <tr>
+ <td> hptxfsiz </td>
+ <td> Gets the value of the Host Periodic Transmit FIFO</td>
+ <td> Read</td>
+ </tr>
+
+ <tr>
+ <td> hprt0 </td>
+ <td> Gets or sets the value in the Host Port Control and Status Register</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> regoffset </td>
+ <td> Sets the register offset for the next Register Access</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> regvalue </td>
+ <td> Gets or sets the value of the register at the offset in the regoffset attribute.</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> remote_wakeup </td>
+ <td> On read, shows the status of Remote Wakeup. On write, initiates a remote
+ wakeup of the host. When bit 0 is 1 and Remote Wakeup is enabled, the Remote
+ Wakeup signalling bit in the Device Control Register is set for 1
+ milli-second.</td>
+ <td> Read/Write</td>
+ </tr>
+
+ <tr>
+ <td> regdump </td>
+ <td> Dumps the contents of core registers.</td>
+ <td> Read</td>
+ </tr>
+
+ <tr>
+ <td> hcddump </td>
+ <td> Dumps the current HCD state.</td>
+ <td> Read</td>
+ </tr>
+
+ <tr>
+ <td> hcd_frrem </td>
+ <td> Shows the average value of the Frame Remaining
+ field in the Host Frame Number/Frame Remaining register when an SOF interrupt
+ occurs. This can be used to determine the average interrupt latency. Also
+ shows the average Frame Remaining value for start_transfer and the "a" and
+ "b" sample points. The "a" and "b" sample points may be used during debugging
+ bto determine how long it takes to execute a section of the HCD code.</td>
+ <td> Read</td>
+ </tr>
+
+ <tr>
+ <td> rd_reg_test </td>
+ <td> Displays the time required to read the GNPTXFSIZ register many times
+ (the output shows the number of times the register is read).
+ <td> Read</td>
+ </tr>
+
+ <tr>
+ <td> wr_reg_test </td>
+ <td> Displays the time required to write the GNPTXFSIZ register many times
+ (the output shows the number of times the register is written).
+ <td> Read</td>
+ </tr>
+
+ </table>
+
+ Example usage:
+ To get the current mode:
+ cat /sys/devices/lm0/mode
+
+ To power down the USB:
+ echo 0 > /sys/devices/lm0/buspower
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/stat.h> /* permission constants */
+
+#include <asm/io.h>
+
+#include "dwc_otg_plat.h"
+#include "dwc_otg_attr.h"
+#include "dwc_otg_driver.h"
+// #include "dwc_otg_pcd.h"
+#include "dwc_otg_hcd.h"
+
+// 20070316, winder added.
+#ifndef SZ_256K
+#define SZ_256K 0x00040000
+#endif
+
+/*
+ * MACROs for defining sysfs attribute
+ */
+#define DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \
+static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \
+{ \
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);\
+ uint32_t val; \
+ val = dwc_read_reg32 (_addr_); \
+ val = (val & (_mask_)) >> _shift_; \
+ return sprintf (buf, "%s = 0x%x\n", _string_, val); \
+}
+#define DWC_OTG_DEVICE_ATTR_BITFIELD_STORE(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \
+static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, const char *buf, size_t count) \
+{ \
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);\
+ uint32_t set = simple_strtoul(buf, NULL, 16); \
+ uint32_t clear = set; \
+ clear = ((~clear) << _shift_) & _mask_; \
+ set = (set << _shift_) & _mask_; \
+ dev_dbg(_dev, "Storing Address=0x%08x Set=0x%08x Clear=0x%08x\n", (uint32_t)_addr_, set, clear); \
+ dwc_modify_reg32(_addr_, clear, set); \
+ return count; \
+}
+
+#define DWC_OTG_DEVICE_ATTR_BITFIELD_RW(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \
+DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \
+DWC_OTG_DEVICE_ATTR_BITFIELD_STORE(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \
+DEVICE_ATTR(_otg_attr_name_,0644,_otg_attr_name_##_show,_otg_attr_name_##_store);
+
+#define DWC_OTG_DEVICE_ATTR_BITFIELD_RO(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \
+DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_addr_,_mask_,_shift_,_string_) \
+DEVICE_ATTR(_otg_attr_name_,0444,_otg_attr_name_##_show,NULL);
+
+/*
+ * MACROs for defining sysfs attribute for 32-bit registers
+ */
+#define DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_addr_,_string_) \
+static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \
+{ \
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);\
+ uint32_t val; \
+ val = dwc_read_reg32 (_addr_); \
+ return sprintf (buf, "%s = 0x%08x\n", _string_, val); \
+}
+#define DWC_OTG_DEVICE_ATTR_REG_STORE(_otg_attr_name_,_addr_,_string_) \
+static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, const char *buf, size_t count) \
+{ \
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);\
+ uint32_t val = simple_strtoul(buf, NULL, 16); \
+ dev_dbg(_dev, "Storing Address=0x%08x Val=0x%08x\n", (uint32_t)_addr_, val); \
+ dwc_write_reg32(_addr_, val); \
+ return count; \
+}
+
+#define DWC_OTG_DEVICE_ATTR_REG32_RW(_otg_attr_name_,_addr_,_string_) \
+DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_addr_,_string_) \
+DWC_OTG_DEVICE_ATTR_REG_STORE(_otg_attr_name_,_addr_,_string_) \
+DEVICE_ATTR(_otg_attr_name_,0644,_otg_attr_name_##_show,_otg_attr_name_##_store);
+
+#define DWC_OTG_DEVICE_ATTR_REG32_RO(_otg_attr_name_,_addr_,_string_) \
+DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_addr_,_string_) \
+DEVICE_ATTR(_otg_attr_name_,0444,_otg_attr_name_##_show,NULL);
+
+
+/** @name Functions for Show/Store of Attributes */
+/**@{*/
+
+/**
+ * Show the register offset of the Register Access.
+ */
+static ssize_t regoffset_show( struct device *_dev, struct device_attribute *attr, char *buf)
+{
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ return snprintf(buf, sizeof("0xFFFFFFFF\n")+1,"0x%08x\n", otg_dev->reg_offset);
+}
+
+/**
+ * Set the register offset for the next Register Access Read/Write
+ */
+static ssize_t regoffset_store( struct device *_dev, struct device_attribute *attr, const char *buf,
+ size_t count )
+{
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ uint32_t offset = simple_strtoul(buf, NULL, 16);
+ //dev_dbg(_dev, "Offset=0x%08x\n", offset);
+ if (offset < SZ_256K ) {
+ otg_dev->reg_offset = offset;
+ }
+ else {
+ dev_err( _dev, "invalid offset\n" );
+ }
+
+ return count;
+}
+DEVICE_ATTR(regoffset, S_IRUGO|S_IWUSR, regoffset_show, regoffset_store);
+
+/**
+ * Show the value of the register at the offset in the reg_offset
+ * attribute.
+ */
+static ssize_t regvalue_show( struct device *_dev, struct device_attribute *attr, char *buf)
+{
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ uint32_t val;
+ volatile uint32_t *addr;
+
+ if (otg_dev->reg_offset != 0xFFFFFFFF && 0 != otg_dev->base) {
+ /* Calculate the address */
+ addr = (uint32_t*)(otg_dev->reg_offset +
+ (uint8_t*)otg_dev->base);
+ //dev_dbg(_dev, "@0x%08x\n", (unsigned)addr);
+ val = dwc_read_reg32( addr );
+ return snprintf(buf, sizeof("Reg@0xFFFFFFFF = 0xFFFFFFFF\n")+1,
+ "Reg@0x%06x = 0x%08x\n",
+ otg_dev->reg_offset, val);
+ }
+ else {
+ dev_err(_dev, "Invalid offset (0x%0x)\n",
+ otg_dev->reg_offset);
+ return sprintf(buf, "invalid offset\n" );
+ }
+}
+
+/**
+ * Store the value in the register at the offset in the reg_offset
+ * attribute.
+ *
+ */
+static ssize_t regvalue_store( struct device *_dev, struct device_attribute *attr, const char *buf,
+ size_t count )
+{
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ volatile uint32_t * addr;
+ uint32_t val = simple_strtoul(buf, NULL, 16);
+ //dev_dbg(_dev, "Offset=0x%08x Val=0x%08x\n", otg_dev->reg_offset, val);
+ if (otg_dev->reg_offset != 0xFFFFFFFF && 0 != otg_dev->base) {
+ /* Calculate the address */
+ addr = (uint32_t*)(otg_dev->reg_offset +
+ (uint8_t*)otg_dev->base);
+ //dev_dbg(_dev, "@0x%08x\n", (unsigned)addr);
+ dwc_write_reg32( addr, val );
+ }
+ else {
+ dev_err(_dev, "Invalid Register Offset (0x%08x)\n",
+ otg_dev->reg_offset);
+ }
+ return count;
+}
+DEVICE_ATTR(regvalue, S_IRUGO|S_IWUSR, regvalue_show, regvalue_store);
+
+/*
+ * Attributes
+ */
+DWC_OTG_DEVICE_ATTR_BITFIELD_RO(mode,&(otg_dev->core_if->core_global_regs->gotgctl),(1<<20),20,"Mode");
+DWC_OTG_DEVICE_ATTR_BITFIELD_RW(hnpcapable,&(otg_dev->core_if->core_global_regs->gusbcfg),(1<<9),9,"Mode");
+DWC_OTG_DEVICE_ATTR_BITFIELD_RW(srpcapable,&(otg_dev->core_if->core_global_regs->gusbcfg),(1<<8),8,"Mode");
+
+//DWC_OTG_DEVICE_ATTR_BITFIELD_RW(buspower,&(otg_dev->core_if->core_global_regs->gotgctl),(1<<8),8,"Mode");
+//DWC_OTG_DEVICE_ATTR_BITFIELD_RW(bussuspend,&(otg_dev->core_if->core_global_regs->gotgctl),(1<<8),8,"Mode");
+DWC_OTG_DEVICE_ATTR_BITFIELD_RO(busconnected,otg_dev->core_if->host_if->hprt0,0x01,0,"Bus Connected");
+
+DWC_OTG_DEVICE_ATTR_REG32_RW(gotgctl,&(otg_dev->core_if->core_global_regs->gotgctl),"GOTGCTL");
+DWC_OTG_DEVICE_ATTR_REG32_RW(gusbcfg,&(otg_dev->core_if->core_global_regs->gusbcfg),"GUSBCFG");
+DWC_OTG_DEVICE_ATTR_REG32_RW(grxfsiz,&(otg_dev->core_if->core_global_regs->grxfsiz),"GRXFSIZ");
+DWC_OTG_DEVICE_ATTR_REG32_RW(gnptxfsiz,&(otg_dev->core_if->core_global_regs->gnptxfsiz),"GNPTXFSIZ");
+DWC_OTG_DEVICE_ATTR_REG32_RW(gpvndctl,&(otg_dev->core_if->core_global_regs->gpvndctl),"GPVNDCTL");
+DWC_OTG_DEVICE_ATTR_REG32_RW(ggpio,&(otg_dev->core_if->core_global_regs->ggpio),"GGPIO");
+DWC_OTG_DEVICE_ATTR_REG32_RW(guid,&(otg_dev->core_if->core_global_regs->guid),"GUID");
+DWC_OTG_DEVICE_ATTR_REG32_RO(gsnpsid,&(otg_dev->core_if->core_global_regs->gsnpsid),"GSNPSID");
+DWC_OTG_DEVICE_ATTR_BITFIELD_RW(devspeed,&(otg_dev->core_if->dev_if->dev_global_regs->dcfg),0x3,0,"Device Speed");
+DWC_OTG_DEVICE_ATTR_BITFIELD_RO(enumspeed,&(otg_dev->core_if->dev_if->dev_global_regs->dsts),0x6,1,"Device Enumeration Speed");
+
+DWC_OTG_DEVICE_ATTR_REG32_RO(hptxfsiz,&(otg_dev->core_if->core_global_regs->hptxfsiz),"HPTXFSIZ");
+DWC_OTG_DEVICE_ATTR_REG32_RW(hprt0,otg_dev->core_if->host_if->hprt0,"HPRT0");
+
+
+/**
+ * @todo Add code to initiate the HNP.
+ */
+/**
+ * Show the HNP status bit
+ */
+static ssize_t hnp_show( struct device *_dev, struct device_attribute *attr, char *buf)
+{
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ gotgctl_data_t val;
+ val.d32 = dwc_read_reg32 (&(otg_dev->core_if->core_global_regs->gotgctl));
+ return sprintf (buf, "HstNegScs = 0x%x\n", val.b.hstnegscs);
+}
+
+/**
+ * Set the HNP Request bit
+ */
+static ssize_t hnp_store( struct device *_dev, struct device_attribute *attr, const char *buf,
+ size_t count )
+{
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ uint32_t in = simple_strtoul(buf, NULL, 16);
+ uint32_t *addr = (uint32_t *)&(otg_dev->core_if->core_global_regs->gotgctl);
+ gotgctl_data_t mem;
+ mem.d32 = dwc_read_reg32(addr);
+ mem.b.hnpreq = in;
+ dev_dbg(_dev, "Storing Address=0x%08x Data=0x%08x\n", (uint32_t)addr, mem.d32);
+ dwc_write_reg32(addr, mem.d32);
+ return count;
+}
+DEVICE_ATTR(hnp, 0644, hnp_show, hnp_store);
+
+/**
+ * @todo Add code to initiate the SRP.
+ */
+/**
+ * Show the SRP status bit
+ */
+static ssize_t srp_show( struct device *_dev, struct device_attribute *attr, char *buf)
+{
+#ifndef DWC_HOST_ONLY
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ gotgctl_data_t val;
+ val.d32 = dwc_read_reg32 (&(otg_dev->core_if->core_global_regs->gotgctl));
+ return sprintf (buf, "SesReqScs = 0x%x\n", val.b.sesreqscs);
+#else
+ return sprintf(buf, "Host Only Mode!\n");
+#endif
+}
+
+/**
+ * Set the SRP Request bit
+ */
+static ssize_t srp_store( struct device *_dev, struct device_attribute *attr, const char *buf,
+ size_t count )
+{
+#ifndef DWC_HOST_ONLY
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ dwc_otg_pcd_initiate_srp(otg_dev->pcd);
+#endif
+ return count;
+}
+DEVICE_ATTR(srp, 0644, srp_show, srp_store);
+
+/**
+ * @todo Need to do more for power on/off?
+ */
+/**
+ * Show the Bus Power status
+ */
+static ssize_t buspower_show( struct device *_dev, struct device_attribute *attr, char *buf)
+{
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ hprt0_data_t val;
+ val.d32 = dwc_read_reg32 (otg_dev->core_if->host_if->hprt0);
+ return sprintf (buf, "Bus Power = 0x%x\n", val.b.prtpwr);
+}
+
+
+/**
+ * Set the Bus Power status
+ */
+static ssize_t buspower_store( struct device *_dev, struct device_attribute *attr, const char *buf,
+ size_t count )
+{
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ uint32_t on = simple_strtoul(buf, NULL, 16);
+ uint32_t *addr = (uint32_t *)otg_dev->core_if->host_if->hprt0;
+ hprt0_data_t mem;
+
+ mem.d32 = dwc_read_reg32(addr);
+ mem.b.prtpwr = on;
+
+ //dev_dbg(_dev, "Storing Address=0x%08x Data=0x%08x\n", (uint32_t)addr, mem.d32);
+ dwc_write_reg32(addr, mem.d32);
+
+ return count;
+}
+DEVICE_ATTR(buspower, 0644, buspower_show, buspower_store);
+
+/**
+ * @todo Need to do more for suspend?
+ */
+/**
+ * Show the Bus Suspend status
+ */
+static ssize_t bussuspend_show( struct device *_dev, struct device_attribute *attr, char *buf)
+{
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ hprt0_data_t val;
+ val.d32 = dwc_read_reg32 (otg_dev->core_if->host_if->hprt0);
+ return sprintf (buf, "Bus Suspend = 0x%x\n", val.b.prtsusp);
+}
+
+/**
+ * Set the Bus Suspend status
+ */
+static ssize_t bussuspend_store( struct device *_dev, struct device_attribute *attr, const char *buf,
+ size_t count )
+{
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ uint32_t in = simple_strtoul(buf, NULL, 16);
+ uint32_t *addr = (uint32_t *)otg_dev->core_if->host_if->hprt0;
+ hprt0_data_t mem;
+ mem.d32 = dwc_read_reg32(addr);
+ mem.b.prtsusp = in;
+ dev_dbg(_dev, "Storing Address=0x%08x Data=0x%08x\n", (uint32_t)addr, mem.d32);
+ dwc_write_reg32(addr, mem.d32);
+ return count;
+}
+DEVICE_ATTR(bussuspend, 0644, bussuspend_show, bussuspend_store);
+
+/**
+ * Show the status of Remote Wakeup.
+ */
+static ssize_t remote_wakeup_show( struct device *_dev, struct device_attribute *attr, char *buf)
+{
+#ifndef DWC_HOST_ONLY
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ dctl_data_t val;
+ val.d32 = dwc_read_reg32( &otg_dev->core_if->dev_if->dev_global_regs->dctl);
+ return sprintf( buf, "Remote Wakeup = %d Enabled = %d\n",
+ val.b.rmtwkupsig, otg_dev->pcd->remote_wakeup_enable);
+#else
+ return sprintf(buf, "Host Only Mode!\n");
+#endif
+}
+
+/**
+ * Initiate a remote wakeup of the host. The Device control register
+ * Remote Wakeup Signal bit is written if the PCD Remote wakeup enable
+ * flag is set.
+ *
+ */
+static ssize_t remote_wakeup_store( struct device *_dev, struct device_attribute *attr, const char *buf,
+ size_t count )
+{
+#ifndef DWC_HOST_ONLY
+ uint32_t val = simple_strtoul(buf, NULL, 16);
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ if (val&1) {
+ dwc_otg_pcd_remote_wakeup(otg_dev->pcd, 1);
+ }
+ else {
+ dwc_otg_pcd_remote_wakeup(otg_dev->pcd, 0);
+ }
+#endif
+ return count;
+}
+DEVICE_ATTR(remote_wakeup, S_IRUGO|S_IWUSR, remote_wakeup_show,
+ remote_wakeup_store);
+
+/**
+ * Dump global registers and either host or device registers (depending on the
+ * current mode of the core).
+ */
+static ssize_t regdump_show( struct device *_dev, struct device_attribute *attr, char *buf)
+{
+#ifdef DEBUG
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ printk("%s otg_dev=0x%p\n", __FUNCTION__, otg_dev);
+
+ dwc_otg_dump_global_registers( otg_dev->core_if);
+ if (dwc_otg_is_host_mode(otg_dev->core_if)) {
+ dwc_otg_dump_host_registers( otg_dev->core_if);
+ } else {
+ dwc_otg_dump_dev_registers( otg_dev->core_if);
+ }
+#endif
+
+ return sprintf( buf, "Register Dump\n" );
+}
+
+DEVICE_ATTR(regdump, S_IRUGO|S_IWUSR, regdump_show, 0);
+
+/**
+ * Dump the current hcd state.
+ */
+static ssize_t hcddump_show( struct device *_dev, struct device_attribute *attr, char *buf)
+{
+#ifndef DWC_DEVICE_ONLY
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ dwc_otg_hcd_dump_state(otg_dev->hcd);
+#endif
+ return sprintf( buf, "HCD Dump\n" );
+}
+
+DEVICE_ATTR(hcddump, S_IRUGO|S_IWUSR, hcddump_show, 0);
+
+/**
+ * Dump the average frame remaining at SOF. This can be used to
+ * determine average interrupt latency. Frame remaining is also shown for
+ * start transfer and two additional sample points.
+ */
+static ssize_t hcd_frrem_show( struct device *_dev, struct device_attribute *attr, char *buf)
+{
+#ifndef DWC_DEVICE_ONLY
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ dwc_otg_hcd_dump_frrem(otg_dev->hcd);
+#endif
+ return sprintf( buf, "HCD Dump Frame Remaining\n" );
+}
+
+DEVICE_ATTR(hcd_frrem, S_IRUGO|S_IWUSR, hcd_frrem_show, 0);
+
+/**
+ * Displays the time required to read the GNPTXFSIZ register many times (the
+ * output shows the number of times the register is read).
+ */
+#define RW_REG_COUNT 10000000
+#define MSEC_PER_JIFFIE 1000/HZ
+static ssize_t rd_reg_test_show( struct device *_dev, struct device_attribute *attr, char *buf)
+{
+ int i;
+ int time;
+ int start_jiffies;
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+
+ printk("HZ %d, MSEC_PER_JIFFIE %d, loops_per_jiffy %lu\n",
+ HZ, MSEC_PER_JIFFIE, loops_per_jiffy);
+ start_jiffies = jiffies;
+ for (i = 0; i < RW_REG_COUNT; i++) {
+ dwc_read_reg32(&otg_dev->core_if->core_global_regs->gnptxfsiz);
+ }
+ time = jiffies - start_jiffies;
+ return sprintf( buf, "Time to read GNPTXFSIZ reg %d times: %d msecs (%d jiffies)\n",
+ RW_REG_COUNT, time * MSEC_PER_JIFFIE, time );
+}
+
+DEVICE_ATTR(rd_reg_test, S_IRUGO|S_IWUSR, rd_reg_test_show, 0);
+
+/**
+ * Displays the time required to write the GNPTXFSIZ register many times (the
+ * output shows the number of times the register is written).
+ */
+static ssize_t wr_reg_test_show( struct device *_dev, struct device_attribute *attr, char *buf)
+{
+ int i;
+ int time;
+ int start_jiffies;
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ uint32_t reg_val;
+
+ printk("HZ %d, MSEC_PER_JIFFIE %d, loops_per_jiffy %lu\n",
+ HZ, MSEC_PER_JIFFIE, loops_per_jiffy);
+ reg_val = dwc_read_reg32(&otg_dev->core_if->core_global_regs->gnptxfsiz);
+ start_jiffies = jiffies;
+ for (i = 0; i < RW_REG_COUNT; i++) {
+ dwc_write_reg32(&otg_dev->core_if->core_global_regs->gnptxfsiz, reg_val);
+ }
+ time = jiffies - start_jiffies;
+ return sprintf( buf, "Time to write GNPTXFSIZ reg %d times: %d msecs (%d jiffies)\n",
+ RW_REG_COUNT, time * MSEC_PER_JIFFIE, time);
+}
+
+DEVICE_ATTR(wr_reg_test, S_IRUGO|S_IWUSR, wr_reg_test_show, 0);
+/**@}*/
+
+/**
+ * Create the device files
+ */
+void dwc_otg_attr_create (struct device *_dev)
+{
+ int retval;
+
+ retval = device_create_file(_dev, &dev_attr_regoffset);
+ retval += device_create_file(_dev, &dev_attr_regvalue);
+ retval += device_create_file(_dev, &dev_attr_mode);
+ retval += device_create_file(_dev, &dev_attr_hnpcapable);
+ retval += device_create_file(_dev, &dev_attr_srpcapable);
+ retval += device_create_file(_dev, &dev_attr_hnp);
+ retval += device_create_file(_dev, &dev_attr_srp);
+ retval += device_create_file(_dev, &dev_attr_buspower);
+ retval += device_create_file(_dev, &dev_attr_bussuspend);
+ retval += device_create_file(_dev, &dev_attr_busconnected);
+ retval += device_create_file(_dev, &dev_attr_gotgctl);
+ retval += device_create_file(_dev, &dev_attr_gusbcfg);
+ retval += device_create_file(_dev, &dev_attr_grxfsiz);
+ retval += device_create_file(_dev, &dev_attr_gnptxfsiz);
+ retval += device_create_file(_dev, &dev_attr_gpvndctl);
+ retval += device_create_file(_dev, &dev_attr_ggpio);
+ retval += device_create_file(_dev, &dev_attr_guid);
+ retval += device_create_file(_dev, &dev_attr_gsnpsid);
+ retval += device_create_file(_dev, &dev_attr_devspeed);
+ retval += device_create_file(_dev, &dev_attr_enumspeed);
+ retval += device_create_file(_dev, &dev_attr_hptxfsiz);
+ retval += device_create_file(_dev, &dev_attr_hprt0);
+ retval += device_create_file(_dev, &dev_attr_remote_wakeup);
+ retval += device_create_file(_dev, &dev_attr_regdump);
+ retval += device_create_file(_dev, &dev_attr_hcddump);
+ retval += device_create_file(_dev, &dev_attr_hcd_frrem);
+ retval += device_create_file(_dev, &dev_attr_rd_reg_test);
+ retval += device_create_file(_dev, &dev_attr_wr_reg_test);
+
+ if(retval != 0)
+ {
+ DWC_PRINT("cannot create sysfs device files.\n");
+ // DWC_PRINT("killing own sysfs device files!\n");
+ dwc_otg_attr_remove(_dev);
+ }
+}
+
+/**
+ * Remove the device files
+ */
+void dwc_otg_attr_remove (struct device *_dev)
+{
+ device_remove_file(_dev, &dev_attr_regoffset);
+ device_remove_file(_dev, &dev_attr_regvalue);
+ device_remove_file(_dev, &dev_attr_mode);
+ device_remove_file(_dev, &dev_attr_hnpcapable);
+ device_remove_file(_dev, &dev_attr_srpcapable);
+ device_remove_file(_dev, &dev_attr_hnp);
+ device_remove_file(_dev, &dev_attr_srp);
+ device_remove_file(_dev, &dev_attr_buspower);
+ device_remove_file(_dev, &dev_attr_bussuspend);
+ device_remove_file(_dev, &dev_attr_busconnected);
+ device_remove_file(_dev, &dev_attr_gotgctl);
+ device_remove_file(_dev, &dev_attr_gusbcfg);
+ device_remove_file(_dev, &dev_attr_grxfsiz);
+ device_remove_file(_dev, &dev_attr_gnptxfsiz);
+ device_remove_file(_dev, &dev_attr_gpvndctl);
+ device_remove_file(_dev, &dev_attr_ggpio);
+ device_remove_file(_dev, &dev_attr_guid);
+ device_remove_file(_dev, &dev_attr_gsnpsid);
+ device_remove_file(_dev, &dev_attr_devspeed);
+ device_remove_file(_dev, &dev_attr_enumspeed);
+ device_remove_file(_dev, &dev_attr_hptxfsiz);
+ device_remove_file(_dev, &dev_attr_hprt0);
+ device_remove_file(_dev, &dev_attr_remote_wakeup);
+ device_remove_file(_dev, &dev_attr_regdump);
+ device_remove_file(_dev, &dev_attr_hcddump);
+ device_remove_file(_dev, &dev_attr_hcd_frrem);
+ device_remove_file(_dev, &dev_attr_rd_reg_test);
+ device_remove_file(_dev, &dev_attr_wr_reg_test);
+}
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_attr.h
@@ -0,0 +1,67 @@
+/* ==========================================================================
+ * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/drivers/dwc_otg_attr.h $
+ * $Revision: 1.1.1.1 $
+ * $Date: 2009-04-17 06:15:34 $
+ * $Change: 510275 $
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+
+#if !defined(__DWC_OTG_ATTR_H__)
+#define __DWC_OTG_ATTR_H__
+
+/** @file
+ * This file contains the interface to the Linux device attributes.
+ */
+extern struct device_attribute dev_attr_regoffset;
+extern struct device_attribute dev_attr_regvalue;
+
+extern struct device_attribute dev_attr_mode;
+extern struct device_attribute dev_attr_hnpcapable;
+extern struct device_attribute dev_attr_srpcapable;
+extern struct device_attribute dev_attr_hnp;
+extern struct device_attribute dev_attr_srp;
+extern struct device_attribute dev_attr_buspower;
+extern struct device_attribute dev_attr_bussuspend;
+extern struct device_attribute dev_attr_busconnected;
+extern struct device_attribute dev_attr_gotgctl;
+extern struct device_attribute dev_attr_gusbcfg;
+extern struct device_attribute dev_attr_grxfsiz;
+extern struct device_attribute dev_attr_gnptxfsiz;
+extern struct device_attribute dev_attr_gpvndctl;
+extern struct device_attribute dev_attr_ggpio;
+extern struct device_attribute dev_attr_guid;
+extern struct device_attribute dev_attr_gsnpsid;
+extern struct device_attribute dev_attr_devspeed;
+extern struct device_attribute dev_attr_enumspeed;
+extern struct device_attribute dev_attr_hptxfsiz;
+extern struct device_attribute dev_attr_hprt0;
+
+void dwc_otg_attr_create (struct device *_dev);
+void dwc_otg_attr_remove (struct device *_dev);
+
+#endif
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_cil.c
@@ -0,0 +1,3025 @@
+/* ==========================================================================
+ * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/drivers/dwc_otg_cil.c $
+ * $Revision: 1.1.1.1 $
+ * $Date: 2009-04-17 06:15:34 $
+ * $Change: 631780 $
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+
+/** @file
+ *
+ * The Core Interface Layer provides basic services for accessing and
+ * managing the DWC_otg hardware. These services are used by both the
+ * Host Controller Driver and the Peripheral Controller Driver.
+ *
+ * The CIL manages the memory map for the core so that the HCD and PCD
+ * don't have to do this separately. It also handles basic tasks like
+ * reading/writing the registers and data FIFOs in the controller.
+ * Some of the data access functions provide encapsulation of several
+ * operations required to perform a task, such as writing multiple
+ * registers to start a transfer. Finally, the CIL performs basic
+ * services that are not specific to either the host or device modes
+ * of operation. These services include management of the OTG Host
+ * Negotiation Protocol (HNP) and Session Request Protocol (SRP). A
+ * Diagnostic API is also provided to allow testing of the controller
+ * hardware.
+ *
+ * The Core Interface Layer has the following requirements:
+ * - Provides basic controller operations.
+ * - Minimal use of OS services.
+ * - The OS services used will be abstracted by using inline functions
+ * or macros.
+ *
+ */
+#include <asm/unaligned.h>
+
+#ifdef DEBUG
+#include <linux/jiffies.h>
+#endif
+
+#include "dwc_otg_plat.h"
+
+#include "dwc_otg_regs.h"
+#include "dwc_otg_cil.h"
+
+/**
+ * This function is called to initialize the DWC_otg CSR data
+ * structures. The register addresses in the device and host
+ * structures are initialized from the base address supplied by the
+ * caller. The calling function must make the OS calls to get the
+ * base address of the DWC_otg controller registers. The core_params
+ * argument holds the parameters that specify how the core should be
+ * configured.
+ *
+ * @param[in] _reg_base_addr Base address of DWC_otg core registers
+ * @param[in] _core_params Pointer to the core configuration parameters
+ *
+ */
+dwc_otg_core_if_t *dwc_otg_cil_init(const uint32_t *_reg_base_addr,
+ dwc_otg_core_params_t *_core_params)
+{
+ dwc_otg_core_if_t *core_if = 0;
+ dwc_otg_dev_if_t *dev_if = 0;
+ dwc_otg_host_if_t *host_if = 0;
+ uint8_t *reg_base = (uint8_t *)_reg_base_addr;
+ int i = 0;
+
+ DWC_DEBUGPL(DBG_CILV, "%s(%p,%p)\n", __func__, _reg_base_addr, _core_params);
+
+ core_if = kmalloc( sizeof(dwc_otg_core_if_t), GFP_KERNEL);
+ if (core_if == 0) {
+ DWC_DEBUGPL(DBG_CIL, "Allocation of dwc_otg_core_if_t failed\n");
+ return 0;
+ }
+ memset(core_if, 0, sizeof(dwc_otg_core_if_t));
+
+ core_if->core_params = _core_params;
+ core_if->core_global_regs = (dwc_otg_core_global_regs_t *)reg_base;
+ /*
+ * Allocate the Device Mode structures.
+ */
+ dev_if = kmalloc( sizeof(dwc_otg_dev_if_t), GFP_KERNEL);
+ if (dev_if == 0) {
+ DWC_DEBUGPL(DBG_CIL, "Allocation of dwc_otg_dev_if_t failed\n");
+ kfree( core_if );
+ return 0;
+ }
+
+ dev_if->dev_global_regs =
+ (dwc_otg_device_global_regs_t *)(reg_base + DWC_DEV_GLOBAL_REG_OFFSET);
+
+ for (i=0; i<MAX_EPS_CHANNELS; i++) {
+ dev_if->in_ep_regs[i] = (dwc_otg_dev_in_ep_regs_t *)
+ (reg_base + DWC_DEV_IN_EP_REG_OFFSET +
+ (i * DWC_EP_REG_OFFSET));
+
+ dev_if->out_ep_regs[i] = (dwc_otg_dev_out_ep_regs_t *)
+ (reg_base + DWC_DEV_OUT_EP_REG_OFFSET +
+ (i * DWC_EP_REG_OFFSET));
+ DWC_DEBUGPL(DBG_CILV, "in_ep_regs[%d]->diepctl=%p\n",
+ i, &dev_if->in_ep_regs[i]->diepctl);
+ DWC_DEBUGPL(DBG_CILV, "out_ep_regs[%d]->doepctl=%p\n",
+ i, &dev_if->out_ep_regs[i]->doepctl);
+ }
+ dev_if->speed = 0; // unknown
+ //dev_if->num_eps = MAX_EPS_CHANNELS;
+ //dev_if->num_perio_eps = 0;
+
+ core_if->dev_if = dev_if;
+ /*
+ * Allocate the Host Mode structures.
+ */
+ host_if = kmalloc( sizeof(dwc_otg_host_if_t), GFP_KERNEL);
+ if (host_if == 0) {
+ DWC_DEBUGPL(DBG_CIL, "Allocation of dwc_otg_host_if_t failed\n");
+ kfree( dev_if );
+ kfree( core_if );
+ return 0;
+ }
+
+ host_if->host_global_regs = (dwc_otg_host_global_regs_t *)
+ (reg_base + DWC_OTG_HOST_GLOBAL_REG_OFFSET);
+ host_if->hprt0 = (uint32_t*)(reg_base + DWC_OTG_HOST_PORT_REGS_OFFSET);
+ for (i=0; i<MAX_EPS_CHANNELS; i++) {
+ host_if->hc_regs[i] = (dwc_otg_hc_regs_t *)
+ (reg_base + DWC_OTG_HOST_CHAN_REGS_OFFSET +
+ (i * DWC_OTG_CHAN_REGS_OFFSET));
+ DWC_DEBUGPL(DBG_CILV, "hc_reg[%d]->hcchar=%p\n",
+ i, &host_if->hc_regs[i]->hcchar);
+ }
+ host_if->num_host_channels = MAX_EPS_CHANNELS;
+ core_if->host_if = host_if;
+
+ for (i=0; i<MAX_EPS_CHANNELS; i++) {
+ core_if->data_fifo[i] =
+ (uint32_t *)(reg_base + DWC_OTG_DATA_FIFO_OFFSET +
+ (i * DWC_OTG_DATA_FIFO_SIZE));
+ DWC_DEBUGPL(DBG_CILV, "data_fifo[%d]=0x%08x\n",
+ i, (unsigned)core_if->data_fifo[i]);
+ } // for loop.
+
+ core_if->pcgcctl = (uint32_t*)(reg_base + DWC_OTG_PCGCCTL_OFFSET);
+
+ /*
+ * Store the contents of the hardware configuration registers here for
+ * easy access later.
+ */
+ core_if->hwcfg1.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg1);
+ core_if->hwcfg2.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg2);
+ core_if->hwcfg3.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg3);
+ core_if->hwcfg4.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg4);
+
+ DWC_DEBUGPL(DBG_CILV,"hwcfg1=%08x\n",core_if->hwcfg1.d32);
+ DWC_DEBUGPL(DBG_CILV,"hwcfg2=%08x\n",core_if->hwcfg2.d32);
+ DWC_DEBUGPL(DBG_CILV,"hwcfg3=%08x\n",core_if->hwcfg3.d32);
+ DWC_DEBUGPL(DBG_CILV,"hwcfg4=%08x\n",core_if->hwcfg4.d32);
+
+
+ DWC_DEBUGPL(DBG_CILV,"op_mode=%0x\n",core_if->hwcfg2.b.op_mode);
+ DWC_DEBUGPL(DBG_CILV,"arch=%0x\n",core_if->hwcfg2.b.architecture);
+ DWC_DEBUGPL(DBG_CILV,"num_dev_ep=%d\n",core_if->hwcfg2.b.num_dev_ep);
+ DWC_DEBUGPL(DBG_CILV,"num_host_chan=%d\n",core_if->hwcfg2.b.num_host_chan);
+ DWC_DEBUGPL(DBG_CILV,"nonperio_tx_q_depth=0x%0x\n",core_if->hwcfg2.b.nonperio_tx_q_depth);
+ DWC_DEBUGPL(DBG_CILV,"host_perio_tx_q_depth=0x%0x\n",core_if->hwcfg2.b.host_perio_tx_q_depth);
+ DWC_DEBUGPL(DBG_CILV,"dev_token_q_depth=0x%0x\n",core_if->hwcfg2.b.dev_token_q_depth);
+
+ DWC_DEBUGPL(DBG_CILV,"Total FIFO SZ=%d\n", core_if->hwcfg3.b.dfifo_depth);
+ DWC_DEBUGPL(DBG_CILV,"xfer_size_cntr_width=%0x\n", core_if->hwcfg3.b.xfer_size_cntr_width);
+
+ /*
+ * Set the SRP sucess bit for FS-I2c
+ */
+ core_if->srp_success = 0;
+ core_if->srp_timer_started = 0;
+
+ return core_if;
+}
+/**
+ * This function frees the structures allocated by dwc_otg_cil_init().
+ *
+ * @param[in] _core_if The core interface pointer returned from
+ * dwc_otg_cil_init().
+ *
+ */
+void dwc_otg_cil_remove( dwc_otg_core_if_t *_core_if )
+{
+ /* Disable all interrupts */
+ dwc_modify_reg32( &_core_if->core_global_regs->gahbcfg, 1, 0);
+ dwc_write_reg32( &_core_if->core_global_regs->gintmsk, 0);
+
+ if ( _core_if->dev_if ) {
+ kfree( _core_if->dev_if );
+ }
+ if ( _core_if->host_if ) {
+ kfree( _core_if->host_if );
+ }
+ kfree( _core_if );
+}
+
+/**
+ * This function enables the controller's Global Interrupt in the AHB Config
+ * register.
+ *
+ * @param[in] _core_if Programming view of DWC_otg controller.
+ */
+extern void dwc_otg_enable_global_interrupts( dwc_otg_core_if_t *_core_if )
+{
+ gahbcfg_data_t ahbcfg = { .d32 = 0};
+ ahbcfg.b.glblintrmsk = 1; /* Enable interrupts */
+ dwc_modify_reg32(&_core_if->core_global_regs->gahbcfg, 0, ahbcfg.d32);
+}
+/**
+ * This function disables the controller's Global Interrupt in the AHB Config
+ * register.
+ *
+ * @param[in] _core_if Programming view of DWC_otg controller.
+ */
+extern void dwc_otg_disable_global_interrupts( dwc_otg_core_if_t *_core_if )
+{
+ gahbcfg_data_t ahbcfg = { .d32 = 0};
+ ahbcfg.b.glblintrmsk = 1; /* Enable interrupts */
+ dwc_modify_reg32(&_core_if->core_global_regs->gahbcfg, ahbcfg.d32, 0);
+}
+
+/**
+ * This function initializes the commmon interrupts, used in both
+ * device and host modes.
+ *
+ * @param[in] _core_if Programming view of the DWC_otg controller
+ *
+ */
+static void dwc_otg_enable_common_interrupts(dwc_otg_core_if_t *_core_if)
+{
+ dwc_otg_core_global_regs_t *global_regs =
+ _core_if->core_global_regs;
+ gintmsk_data_t intr_mask = { .d32 = 0};
+ /* Clear any pending OTG Interrupts */
+ dwc_write_reg32( &global_regs->gotgint, 0xFFFFFFFF);
+ /* Clear any pending interrupts */
+ dwc_write_reg32( &global_regs->gintsts, 0xFFFFFFFF);
+ /*
+ * Enable the interrupts in the GINTMSK.
+ */
+ intr_mask.b.modemismatch = 1;
+ intr_mask.b.otgintr = 1;
+ if (!_core_if->dma_enable) {
+ intr_mask.b.rxstsqlvl = 1;
+ }
+ intr_mask.b.conidstschng = 1;
+ intr_mask.b.wkupintr = 1;
+ intr_mask.b.disconnect = 1;
+ intr_mask.b.usbsuspend = 1;
+ intr_mask.b.sessreqintr = 1;
+ dwc_write_reg32( &global_regs->gintmsk, intr_mask.d32);
+}
+
+/**
+ * Initializes the FSLSPClkSel field of the HCFG register depending on the PHY
+ * type.
+ */
+static void init_fslspclksel(dwc_otg_core_if_t *_core_if)
+{
+ uint32_t val;
+ hcfg_data_t hcfg;
+
+ if (((_core_if->hwcfg2.b.hs_phy_type == 2) &&
+ (_core_if->hwcfg2.b.fs_phy_type == 1) &&
+ (_core_if->core_params->ulpi_fs_ls)) ||
+ (_core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS))
+ {
+ /* Full speed PHY */
+ val = DWC_HCFG_48_MHZ;
+ } else {
+ /* High speed PHY running at full speed or high speed */
+ val = DWC_HCFG_30_60_MHZ;
+ }
+
+ DWC_DEBUGPL(DBG_CIL, "Initializing HCFG.FSLSPClkSel to 0x%1x\n", val);
+ hcfg.d32 = dwc_read_reg32(&_core_if->host_if->host_global_regs->hcfg);
+ hcfg.b.fslspclksel = val;
+ dwc_write_reg32(&_core_if->host_if->host_global_regs->hcfg, hcfg.d32);
+}
+
+/**
+ * Initializes the DevSpd field of the DCFG register depending on the PHY type
+ * and the enumeration speed of the device.
+ */
+static void init_devspd(dwc_otg_core_if_t *_core_if)
+{
+ uint32_t val;
+ dcfg_data_t dcfg;
+
+ if (((_core_if->hwcfg2.b.hs_phy_type == 2) &&
+ (_core_if->hwcfg2.b.fs_phy_type == 1) &&
+ (_core_if->core_params->ulpi_fs_ls)) ||
+ (_core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS))
+ {
+ /* Full speed PHY */
+ val = 0x3;
+ } else if (_core_if->core_params->speed == DWC_SPEED_PARAM_FULL) {
+ /* High speed PHY running at full speed */
+ val = 0x1;
+ } else {
+ /* High speed PHY running at high speed */
+ val = 0x0;
+ }
+
+ DWC_DEBUGPL(DBG_CIL, "Initializing DCFG.DevSpd to 0x%1x\n", val);
+ dcfg.d32 = dwc_read_reg32(&_core_if->dev_if->dev_global_regs->dcfg);
+ dcfg.b.devspd = val;
+ dwc_write_reg32(&_core_if->dev_if->dev_global_regs->dcfg, dcfg.d32);
+}
+
+/**
+ * This function calculates the number of IN EPS
+ * using GHWCFG1 and GHWCFG2 registers values
+ *
+ * @param _pcd the pcd structure.
+ */
+static uint32_t calc_num_in_eps(dwc_otg_core_if_t * _core_if)
+{
+ uint32_t num_in_eps = 0;
+ uint32_t num_eps = _core_if->hwcfg2.b.num_dev_ep;
+ uint32_t hwcfg1 = _core_if->hwcfg1.d32 >> 2;
+ uint32_t num_tx_fifos = _core_if->hwcfg4.b.num_in_eps;
+ int i;
+ for (i = 0; i < num_eps; ++i) {
+ if (!(hwcfg1 & 0x1))
+ num_in_eps++;
+ hwcfg1 >>= 2;
+ }
+ if (_core_if->hwcfg4.b.ded_fifo_en) {
+ num_in_eps = (num_in_eps > num_tx_fifos) ? num_tx_fifos : num_in_eps;
+ }
+ return num_in_eps;
+}
+
+
+/**
+ * This function calculates the number of OUT EPS
+ * using GHWCFG1 and GHWCFG2 registers values
+ *
+ * @param _pcd the pcd structure.
+ */
+static uint32_t calc_num_out_eps(dwc_otg_core_if_t * _core_if)
+{
+ uint32_t num_out_eps = 0;
+ uint32_t num_eps = _core_if->hwcfg2.b.num_dev_ep;
+ uint32_t hwcfg1 = _core_if->hwcfg1.d32 >> 2;
+ int i;
+ for (i = 0; i < num_eps; ++i) {
+ if (!(hwcfg1 & 0x2))
+ num_out_eps++;
+ hwcfg1 >>= 2;
+ }
+ return num_out_eps;
+}
+/**
+ * This function initializes the DWC_otg controller registers and
+ * prepares the core for device mode or host mode operation.
+ *
+ * @param _core_if Programming view of the DWC_otg controller
+ *
+ */
+void dwc_otg_core_init(dwc_otg_core_if_t *_core_if)
+{
+ dwc_otg_core_global_regs_t * global_regs = _core_if->core_global_regs;
+ dwc_otg_dev_if_t *dev_if = _core_if->dev_if;
+ int i = 0;
+ gahbcfg_data_t ahbcfg = { .d32 = 0};
+ gusbcfg_data_t usbcfg = { .d32 = 0 };
+ gi2cctl_data_t i2cctl = {.d32 = 0};
+
+ DWC_DEBUGPL(DBG_CILV, "dwc_otg_core_init(%p)\n",_core_if);
+
+ /* Common Initialization */
+
+ usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg);
+ DWC_DEBUGPL(DBG_CIL, "USB config register: 0x%08x\n", usbcfg.d32);
+
+ /* Program the ULPI External VBUS bit if needed */
+ //usbcfg.b.ulpi_ext_vbus_drv = 1;
+ //usbcfg.b.ulpi_ext_vbus_drv = 0;
+ usbcfg.b.ulpi_ext_vbus_drv =
+ (_core_if->core_params->phy_ulpi_ext_vbus == DWC_PHY_ULPI_EXTERNAL_VBUS) ? 1 : 0;
+
+ /* Set external TS Dline pulsing */
+ usbcfg.b.term_sel_dl_pulse = (_core_if->core_params->ts_dline == 1) ? 1 : 0;
+ dwc_write_reg32 (&global_regs->gusbcfg, usbcfg.d32);
+
+ /* Reset the Controller */
+ dwc_otg_core_reset( _core_if );
+
+ /* Initialize parameters from Hardware configuration registers. */
+#if 0
+ dev_if->num_eps = _core_if->hwcfg2.b.num_dev_ep;
+ dev_if->num_perio_eps = _core_if->hwcfg4.b.num_dev_perio_in_ep;
+#else
+ dev_if->num_in_eps = calc_num_in_eps(_core_if);
+ dev_if->num_out_eps = calc_num_out_eps(_core_if);
+#endif
+ DWC_DEBUGPL(DBG_CIL, "num_dev_perio_in_ep=%d\n",
+ _core_if->hwcfg4.b.num_dev_perio_in_ep);
+ DWC_DEBUGPL(DBG_CIL, "Is power optimization enabled? %s\n",
+ _core_if->hwcfg4.b.power_optimiz ? "Yes" : "No");
+ DWC_DEBUGPL(DBG_CIL, "vbus_valid filter enabled? %s\n",
+ _core_if->hwcfg4.b.vbus_valid_filt_en ? "Yes" : "No");
+ DWC_DEBUGPL(DBG_CIL, "iddig filter enabled? %s\n",
+ _core_if->hwcfg4.b.iddig_filt_en ? "Yes" : "No");
+
+ DWC_DEBUGPL(DBG_CIL, "num_dev_perio_in_ep=%d\n",_core_if->hwcfg4.b.num_dev_perio_in_ep);
+ for (i=0; i < _core_if->hwcfg4.b.num_dev_perio_in_ep; i++) {
+ dev_if->perio_tx_fifo_size[i] =
+ dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i]) >> 16;
+ DWC_DEBUGPL(DBG_CIL, "Periodic Tx FIFO SZ #%d=0x%0x\n", i,
+ dev_if->perio_tx_fifo_size[i]);
+ }
+ for (i = 0; i < _core_if->hwcfg4.b.num_in_eps; i++) {
+ dev_if->tx_fifo_size[i] =
+ dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i]) >> 16;
+ DWC_DEBUGPL(DBG_CIL, "Tx FIFO SZ #%d=0x%0x\n", i,
+ dev_if->perio_tx_fifo_size[i]);
+ }
+
+ _core_if->total_fifo_size = _core_if->hwcfg3.b.dfifo_depth;
+ _core_if->rx_fifo_size = dwc_read_reg32(&global_regs->grxfsiz);
+ _core_if->nperio_tx_fifo_size = dwc_read_reg32(&global_regs->gnptxfsiz) >> 16;
+
+ DWC_DEBUGPL(DBG_CIL, "Total FIFO SZ=%d\n", _core_if->total_fifo_size);
+ DWC_DEBUGPL(DBG_CIL, "Rx FIFO SZ=%d\n", _core_if->rx_fifo_size);
+ DWC_DEBUGPL(DBG_CIL, "NP Tx FIFO SZ=%d\n", _core_if->nperio_tx_fifo_size);
+
+ /* This programming sequence needs to happen in FS mode before any other
+ * programming occurs */
+ if ((_core_if->core_params->speed == DWC_SPEED_PARAM_FULL) &&
+ (_core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) {
+ /* If FS mode with FS PHY */
+
+ /* core_init() is now called on every switch so only call the
+ * following for the first time through. */
+ if (!_core_if->phy_init_done) {
+ _core_if->phy_init_done = 1;
+ DWC_DEBUGPL(DBG_CIL, "FS_PHY detected\n");
+ usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg);
+ usbcfg.b.physel = 1;
+ dwc_write_reg32 (&global_regs->gusbcfg, usbcfg.d32);
+
+ /* Reset after a PHY select */
+ dwc_otg_core_reset( _core_if );
+ }
+
+ /* Program DCFG.DevSpd or HCFG.FSLSPclkSel to 48Mhz in FS. Also
+ * do this on HNP Dev/Host mode switches (done in dev_init and
+ * host_init). */
+ if (dwc_otg_is_host_mode(_core_if)) {
+ DWC_DEBUGPL(DBG_CIL, "host mode\n");
+ init_fslspclksel(_core_if);
+ } else {
+ DWC_DEBUGPL(DBG_CIL, "device mode\n");
+ init_devspd(_core_if);
+ }
+
+ if (_core_if->core_params->i2c_enable) {
+ DWC_DEBUGPL(DBG_CIL, "FS_PHY Enabling I2c\n");
+ /* Program GUSBCFG.OtgUtmifsSel to I2C */
+ usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg);
+ usbcfg.b.otgutmifssel = 1;
+ dwc_write_reg32 (&global_regs->gusbcfg, usbcfg.d32);
+
+ /* Program GI2CCTL.I2CEn */
+ i2cctl.d32 = dwc_read_reg32(&global_regs->gi2cctl);
+ i2cctl.b.i2cdevaddr = 1;
+ i2cctl.b.i2cen = 0;
+ dwc_write_reg32 (&global_regs->gi2cctl, i2cctl.d32);
+ i2cctl.b.i2cen = 1;
+ dwc_write_reg32 (&global_regs->gi2cctl, i2cctl.d32);
+ }
+
+ } /* endif speed == DWC_SPEED_PARAM_FULL */
+ else {
+ /* High speed PHY. */
+ if (!_core_if->phy_init_done) {
+ _core_if->phy_init_done = 1;
+ DWC_DEBUGPL(DBG_CIL, "High spped PHY\n");
+ /* HS PHY parameters. These parameters are preserved
+ * during soft reset so only program the first time. Do
+ * a soft reset immediately after setting phyif. */
+ usbcfg.b.ulpi_utmi_sel = _core_if->core_params->phy_type;
+ if (usbcfg.b.ulpi_utmi_sel == 2) { // winder
+ DWC_DEBUGPL(DBG_CIL, "ULPI\n");
+ /* ULPI interface */
+ usbcfg.b.phyif = 0;
+ usbcfg.b.ddrsel = _core_if->core_params->phy_ulpi_ddr;
+ } else {
+ /* UTMI+ interface */
+ if (_core_if->core_params->phy_utmi_width == 16) {
+ usbcfg.b.phyif = 1;
+ DWC_DEBUGPL(DBG_CIL, "UTMI+ 16\n");
+ } else {
+ DWC_DEBUGPL(DBG_CIL, "UTMI+ 8\n");
+ usbcfg.b.phyif = 0;
+ }
+ }
+ dwc_write_reg32( &global_regs->gusbcfg, usbcfg.d32);
+
+ /* Reset after setting the PHY parameters */
+ dwc_otg_core_reset( _core_if );
+ }
+ }
+
+ if ((_core_if->hwcfg2.b.hs_phy_type == 2) &&
+ (_core_if->hwcfg2.b.fs_phy_type == 1) &&
+ (_core_if->core_params->ulpi_fs_ls))
+ {
+ DWC_DEBUGPL(DBG_CIL, "Setting ULPI FSLS\n");
+ usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg);
+ usbcfg.b.ulpi_fsls = 1;
+ usbcfg.b.ulpi_clk_sus_m = 1;
+ dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32);
+ } else {
+ DWC_DEBUGPL(DBG_CIL, "Setting ULPI FSLS=0\n");
+ usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg);
+ usbcfg.b.ulpi_fsls = 0;
+ usbcfg.b.ulpi_clk_sus_m = 0;
+ dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32);
+ }
+
+ /* Program the GAHBCFG Register.*/
+ switch (_core_if->hwcfg2.b.architecture){
+
+ case DWC_SLAVE_ONLY_ARCH:
+ DWC_DEBUGPL(DBG_CIL, "Slave Only Mode\n");
+ ahbcfg.b.nptxfemplvl_txfemplvl = DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY;
+ ahbcfg.b.ptxfemplvl = DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY;
+ _core_if->dma_enable = 0;
+ break;
+
+ case DWC_EXT_DMA_ARCH:
+ DWC_DEBUGPL(DBG_CIL, "External DMA Mode\n");
+ ahbcfg.b.hburstlen = _core_if->core_params->dma_burst_size;
+ _core_if->dma_enable = (_core_if->core_params->dma_enable != 0);
+ break;
+
+ case DWC_INT_DMA_ARCH:
+ DWC_DEBUGPL(DBG_CIL, "Internal DMA Mode\n");
+ //ahbcfg.b.hburstlen = DWC_GAHBCFG_INT_DMA_BURST_INCR;
+ ahbcfg.b.hburstlen = DWC_GAHBCFG_INT_DMA_BURST_INCR4;
+ _core_if->dma_enable = (_core_if->core_params->dma_enable != 0);
+ break;
+ }
+ ahbcfg.b.dmaenable = _core_if->dma_enable;
+ dwc_write_reg32(&global_regs->gahbcfg, ahbcfg.d32);
+ _core_if->en_multiple_tx_fifo = _core_if->hwcfg4.b.ded_fifo_en;
+
+ /*
+ * Program the GUSBCFG register.
+ */
+ usbcfg.d32 = dwc_read_reg32( &global_regs->gusbcfg );
+
+ switch (_core_if->hwcfg2.b.op_mode) {
+ case DWC_MODE_HNP_SRP_CAPABLE:
+ usbcfg.b.hnpcap = (_core_if->core_params->otg_cap ==
+ DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE);
+ usbcfg.b.srpcap = (_core_if->core_params->otg_cap !=
+ DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE);
+ break;
+
+ case DWC_MODE_SRP_ONLY_CAPABLE:
+ usbcfg.b.hnpcap = 0;
+ usbcfg.b.srpcap = (_core_if->core_params->otg_cap !=
+ DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE);
+ break;
+
+ case DWC_MODE_NO_HNP_SRP_CAPABLE:
+ usbcfg.b.hnpcap = 0;
+ usbcfg.b.srpcap = 0;
+ break;
+
+ case DWC_MODE_SRP_CAPABLE_DEVICE:
+ usbcfg.b.hnpcap = 0;
+ usbcfg.b.srpcap = (_core_if->core_params->otg_cap !=
+ DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE);
+ break;
+
+ case DWC_MODE_NO_SRP_CAPABLE_DEVICE:
+ usbcfg.b.hnpcap = 0;
+ usbcfg.b.srpcap = 0;
+ break;
+
+ case DWC_MODE_SRP_CAPABLE_HOST:
+ usbcfg.b.hnpcap = 0;
+ usbcfg.b.srpcap = (_core_if->core_params->otg_cap !=
+ DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE);
+ break;
+
+ case DWC_MODE_NO_SRP_CAPABLE_HOST:
+ usbcfg.b.hnpcap = 0;
+ usbcfg.b.srpcap = 0;
+ break;
+ }
+
+ dwc_write_reg32( &global_regs->gusbcfg, usbcfg.d32);
+
+ /* Enable common interrupts */
+ dwc_otg_enable_common_interrupts( _core_if );
+
+ /* Do device or host intialization based on mode during PCD
+ * and HCD initialization */
+ if (dwc_otg_is_host_mode( _core_if )) {
+ DWC_DEBUGPL(DBG_ANY, "Host Mode\n" );
+ _core_if->op_state = A_HOST;
+ } else {
+ DWC_DEBUGPL(DBG_ANY, "Device Mode\n" );
+ _core_if->op_state = B_PERIPHERAL;
+#ifdef DWC_DEVICE_ONLY
+ dwc_otg_core_dev_init( _core_if );
+#endif
+ }
+}
+
+
+/**
+ * This function enables the Device mode interrupts.
+ *
+ * @param _core_if Programming view of DWC_otg controller
+ */
+void dwc_otg_enable_device_interrupts(dwc_otg_core_if_t *_core_if)
+{
+ gintmsk_data_t intr_mask = { .d32 = 0};
+ dwc_otg_core_global_regs_t * global_regs = _core_if->core_global_regs;
+
+ DWC_DEBUGPL(DBG_CIL, "%s()\n", __func__);
+
+ /* Disable all interrupts. */
+ dwc_write_reg32( &global_regs->gintmsk, 0);
+
+ /* Clear any pending interrupts */
+ dwc_write_reg32( &global_regs->gintsts, 0xFFFFFFFF);
+
+ /* Enable the common interrupts */
+ dwc_otg_enable_common_interrupts( _core_if );
+
+ /* Enable interrupts */
+ intr_mask.b.usbreset = 1;
+ intr_mask.b.enumdone = 1;
+ //intr_mask.b.epmismatch = 1;
+ intr_mask.b.inepintr = 1;
+ intr_mask.b.outepintr = 1;
+ intr_mask.b.erlysuspend = 1;
+ if (_core_if->en_multiple_tx_fifo == 0) {
+ intr_mask.b.epmismatch = 1;
+ }
+
+ /** @todo NGS: Should this be a module parameter? */
+ intr_mask.b.isooutdrop = 1;
+ intr_mask.b.eopframe = 1;
+ intr_mask.b.incomplisoin = 1;
+ intr_mask.b.incomplisoout = 1;
+
+ dwc_modify_reg32( &global_regs->gintmsk, intr_mask.d32, intr_mask.d32);
+
+ DWC_DEBUGPL(DBG_CIL, "%s() gintmsk=%0x\n", __func__,
+ dwc_read_reg32( &global_regs->gintmsk));
+}
+
+/**
+ * This function initializes the DWC_otg controller registers for
+ * device mode.
+ *
+ * @param _core_if Programming view of DWC_otg controller
+ *
+ */
+void dwc_otg_core_dev_init(dwc_otg_core_if_t *_core_if)
+{
+ dwc_otg_core_global_regs_t *global_regs =
+ _core_if->core_global_regs;
+ dwc_otg_dev_if_t *dev_if = _core_if->dev_if;
+ dwc_otg_core_params_t *params = _core_if->core_params;
+ dcfg_data_t dcfg = {.d32 = 0};
+ grstctl_t resetctl = { .d32=0 };
+ int i;
+ uint32_t rx_fifo_size;
+ fifosize_data_t nptxfifosize;
+ fifosize_data_t txfifosize;
+ dthrctl_data_t dthrctl;
+
+ fifosize_data_t ptxfifosize;
+
+ /* Restart the Phy Clock */
+ dwc_write_reg32(_core_if->pcgcctl, 0);
+
+ /* Device configuration register */
+ init_devspd(_core_if);
+ dcfg.d32 = dwc_read_reg32( &dev_if->dev_global_regs->dcfg);
+ dcfg.b.perfrint = DWC_DCFG_FRAME_INTERVAL_80;
+ dwc_write_reg32( &dev_if->dev_global_regs->dcfg, dcfg.d32 );
+
+ /* Configure data FIFO sizes */
+ if ( _core_if->hwcfg2.b.dynamic_fifo && params->enable_dynamic_fifo ) {
+
+ DWC_DEBUGPL(DBG_CIL, "Total FIFO Size=%d\n", _core_if->total_fifo_size);
+ DWC_DEBUGPL(DBG_CIL, "Rx FIFO Size=%d\n", params->dev_rx_fifo_size);
+ DWC_DEBUGPL(DBG_CIL, "NP Tx FIFO Size=%d\n", params->dev_nperio_tx_fifo_size);
+
+ /* Rx FIFO */
+ DWC_DEBUGPL(DBG_CIL, "initial grxfsiz=%08x\n",
+ dwc_read_reg32(&global_regs->grxfsiz));
+ rx_fifo_size = params->dev_rx_fifo_size;
+ dwc_write_reg32( &global_regs->grxfsiz, rx_fifo_size );
+ DWC_DEBUGPL(DBG_CIL, "new grxfsiz=%08x\n",
+ dwc_read_reg32(&global_regs->grxfsiz));
+
+ /** Set Periodic Tx FIFO Mask all bits 0 */
+ _core_if->p_tx_msk = 0;
+
+ /** Set Tx FIFO Mask all bits 0 */
+ _core_if->tx_msk = 0;
+ if (_core_if->en_multiple_tx_fifo == 0) {
+ /* Non-periodic Tx FIFO */
+ DWC_DEBUGPL(DBG_CIL, "initial gnptxfsiz=%08x\n",
+ dwc_read_reg32(&global_regs->gnptxfsiz));
+ nptxfifosize.b.depth = params->dev_nperio_tx_fifo_size;
+ nptxfifosize.b.startaddr = params->dev_rx_fifo_size;
+ dwc_write_reg32( &global_regs->gnptxfsiz, nptxfifosize.d32 );
+ DWC_DEBUGPL(DBG_CIL, "new gnptxfsiz=%08x\n",
+ dwc_read_reg32(&global_regs->gnptxfsiz));
+
+
+ /**@todo NGS: Fix Periodic FIFO Sizing! */
+ /*
+ * Periodic Tx FIFOs These FIFOs are numbered from 1 to 15.
+ * Indexes of the FIFO size module parameters in the
+ * dev_perio_tx_fifo_size array and the FIFO size registers in
+ * the dptxfsiz array run from 0 to 14.
+ */
+ /** @todo Finish debug of this */
+ ptxfifosize.b.startaddr =
+ nptxfifosize.b.startaddr + nptxfifosize.b.depth;
+ for (i = 0; i < _core_if->hwcfg4.b.num_dev_perio_in_ep;i++) {
+ ptxfifosize.b.depth = params->dev_perio_tx_fifo_size[i];
+ DWC_DEBUGPL(DBG_CIL,"initial dptxfsiz_dieptxf[%d]=%08x\n",
+ i,dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i]));
+ dwc_write_reg32(&global_regs->dptxfsiz_dieptxf[i],ptxfifosize.d32);
+ DWC_DEBUGPL(DBG_CIL,"new dptxfsiz_dieptxf[%d]=%08x\n",
+ i,dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i]));
+ ptxfifosize.b.startaddr += ptxfifosize.b.depth;
+ }
+ } else {
+
+ /*
+ * Tx FIFOs These FIFOs are numbered from 1 to 15.
+ * Indexes of the FIFO size module parameters in the
+ * dev_tx_fifo_size array and the FIFO size registers in
+ * the dptxfsiz_dieptxf array run from 0 to 14.
+ */
+
+ /* Non-periodic Tx FIFO */
+ DWC_DEBUGPL(DBG_CIL, "initial gnptxfsiz=%08x\n",
+ dwc_read_reg32(&global_regs->gnptxfsiz));
+ nptxfifosize.b.depth = params->dev_nperio_tx_fifo_size;
+ nptxfifosize.b.startaddr = params->dev_rx_fifo_size;
+ dwc_write_reg32(&global_regs->gnptxfsiz, nptxfifosize.d32);
+ DWC_DEBUGPL(DBG_CIL, "new gnptxfsiz=%08x\n",
+ dwc_read_reg32(&global_regs->gnptxfsiz));
+ txfifosize.b.startaddr = nptxfifosize.b.startaddr + nptxfifosize.b.depth;
+ for (i = 1;i < _core_if->hwcfg4.b.num_dev_perio_in_ep;i++) {
+ txfifosize.b.depth = params->dev_tx_fifo_size[i];
+ DWC_DEBUGPL(DBG_CIL,"initial dptxfsiz_dieptxf[%d]=%08x\n",
+ i,dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i]));
+ dwc_write_reg32(&global_regs->dptxfsiz_dieptxf[i - 1],txfifosize.d32);
+ DWC_DEBUGPL(DBG_CIL,"new dptxfsiz_dieptxf[%d]=%08x\n",
+ i,dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i-1]));
+ txfifosize.b.startaddr += txfifosize.b.depth;
+ }
+ }
+ }
+ /* Flush the FIFOs */
+ dwc_otg_flush_tx_fifo(_core_if, 0x10); /* all Tx FIFOs */
+ dwc_otg_flush_rx_fifo(_core_if);
+
+ /* Flush the Learning Queue. */
+ resetctl.b.intknqflsh = 1;
+ dwc_write_reg32( &_core_if->core_global_regs->grstctl, resetctl.d32);
+
+ /* Clear all pending Device Interrupts */
+ dwc_write_reg32( &dev_if->dev_global_regs->diepmsk, 0 );
+ dwc_write_reg32( &dev_if->dev_global_regs->doepmsk, 0 );
+ dwc_write_reg32( &dev_if->dev_global_regs->daint, 0xFFFFFFFF );
+ dwc_write_reg32( &dev_if->dev_global_regs->daintmsk, 0 );
+
+ for (i = 0; i <= dev_if->num_in_eps; i++) {
+ depctl_data_t depctl;
+ depctl.d32 = dwc_read_reg32(&dev_if->in_ep_regs[i]->diepctl);
+ if (depctl.b.epena) {
+ depctl.d32 = 0;
+ depctl.b.epdis = 1;
+ depctl.b.snak = 1;
+ } else {
+ depctl.d32 = 0;
+ }
+ dwc_write_reg32( &dev_if->in_ep_regs[i]->diepctl, depctl.d32);
+
+ dwc_write_reg32(&dev_if->in_ep_regs[i]->dieptsiz, 0);
+ dwc_write_reg32(&dev_if->in_ep_regs[i]->diepdma, 0);
+ dwc_write_reg32(&dev_if->in_ep_regs[i]->diepint, 0xFF);
+ }
+ for (i = 0; i <= dev_if->num_out_eps; i++) {
+ depctl_data_t depctl;
+ depctl.d32 = dwc_read_reg32(&dev_if->out_ep_regs[i]->doepctl);
+ if (depctl.b.epena) {
+ depctl.d32 = 0;
+ depctl.b.epdis = 1;
+ depctl.b.snak = 1;
+ } else {
+ depctl.d32 = 0;
+ }
+ dwc_write_reg32( &dev_if->out_ep_regs[i]->doepctl, depctl.d32);
+
+ //dwc_write_reg32( &dev_if->in_ep_regs[i]->dieptsiz, 0);
+ dwc_write_reg32( &dev_if->out_ep_regs[i]->doeptsiz, 0);
+ //dwc_write_reg32( &dev_if->in_ep_regs[i]->diepdma, 0);
+ dwc_write_reg32( &dev_if->out_ep_regs[i]->doepdma, 0);
+ //dwc_write_reg32( &dev_if->in_ep_regs[i]->diepint, 0xFF);
+ dwc_write_reg32( &dev_if->out_ep_regs[i]->doepint, 0xFF);
+ }
+
+ if (_core_if->en_multiple_tx_fifo && _core_if->dma_enable) {
+ dev_if->non_iso_tx_thr_en = _core_if->core_params->thr_ctl & 0x1;
+ dev_if->iso_tx_thr_en = (_core_if->core_params->thr_ctl >> 1) & 0x1;
+ dev_if->rx_thr_en = (_core_if->core_params->thr_ctl >> 2) & 0x1;
+ dev_if->rx_thr_length = _core_if->core_params->rx_thr_length;
+ dev_if->tx_thr_length = _core_if->core_params->tx_thr_length;
+ dthrctl.d32 = 0;
+ dthrctl.b.non_iso_thr_en = dev_if->non_iso_tx_thr_en;
+ dthrctl.b.iso_thr_en = dev_if->iso_tx_thr_en;
+ dthrctl.b.tx_thr_len = dev_if->tx_thr_length;
+ dthrctl.b.rx_thr_en = dev_if->rx_thr_en;
+ dthrctl.b.rx_thr_len = dev_if->rx_thr_length;
+ dwc_write_reg32(&dev_if->dev_global_regs->dtknqr3_dthrctl,dthrctl.d32);
+ DWC_DEBUGPL(DBG_CIL, "Non ISO Tx Thr - %d\nISO Tx Thr - %d\n"
+ "Rx Thr - %d\nTx Thr Len - %d\nRx Thr Len - %d\n",
+ dthrctl.b.non_iso_thr_en, dthrctl.b.iso_thr_en,
+ dthrctl.b.rx_thr_en, dthrctl.b.tx_thr_len,
+ dthrctl.b.rx_thr_len);
+ }
+ dwc_otg_enable_device_interrupts( _core_if );
+ {
+ diepmsk_data_t msk = {.d32 = 0};
+ msk.b.txfifoundrn = 1;
+ dwc_modify_reg32(&dev_if->dev_global_regs->diepmsk, msk.d32,msk.d32);
+}
+}
+
+/**
+ * This function enables the Host mode interrupts.
+ *
+ * @param _core_if Programming view of DWC_otg controller
+ */
+void dwc_otg_enable_host_interrupts(dwc_otg_core_if_t *_core_if)
+{
+ dwc_otg_core_global_regs_t *global_regs = _core_if->core_global_regs;
+ gintmsk_data_t intr_mask = {.d32 = 0};
+
+ DWC_DEBUGPL(DBG_CIL, "%s()\n", __func__);
+
+ /* Disable all interrupts. */
+ dwc_write_reg32(&global_regs->gintmsk, 0);
+
+ /* Clear any pending interrupts. */
+ dwc_write_reg32(&global_regs->gintsts, 0xFFFFFFFF);
+
+ /* Enable the common interrupts */
+ dwc_otg_enable_common_interrupts(_core_if);
+
+ /*
+ * Enable host mode interrupts without disturbing common
+ * interrupts.
+ */
+ intr_mask.b.sofintr = 1;
+ intr_mask.b.portintr = 1;
+ intr_mask.b.hcintr = 1;
+
+ //dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, intr_mask.d32);
+ //dwc_modify_reg32(&global_regs->gintmsk, 0, intr_mask.d32);
+ dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, intr_mask.d32);
+}
+
+/**
+ * This function disables the Host Mode interrupts.
+ *
+ * @param _core_if Programming view of DWC_otg controller
+ */
+void dwc_otg_disable_host_interrupts(dwc_otg_core_if_t *_core_if)
+{
+ dwc_otg_core_global_regs_t *global_regs =
+ _core_if->core_global_regs;
+ gintmsk_data_t intr_mask = {.d32 = 0};
+
+ DWC_DEBUGPL(DBG_CILV, "%s()\n", __func__);
+
+ /*
+ * Disable host mode interrupts without disturbing common
+ * interrupts.
+ */
+ intr_mask.b.sofintr = 1;
+ intr_mask.b.portintr = 1;
+ intr_mask.b.hcintr = 1;
+ intr_mask.b.ptxfempty = 1;
+ intr_mask.b.nptxfempty = 1;
+
+ dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, 0);
+}
+
+#if 0
+/* currently not used, keep it here as if needed later */
+static int phy_read(dwc_otg_core_if_t * _core_if, int addr)
+{
+ u32 val;
+ int timeout = 10;
+
+ dwc_write_reg32(&_core_if->core_global_regs->gpvndctl,
+ 0x02000000 | (addr << 16));
+ val = dwc_read_reg32(&_core_if->core_global_regs->gpvndctl);
+ while (((val & 0x08000000) == 0) && (timeout--)) {
+ udelay(1000);
+ val = dwc_read_reg32(&_core_if->core_global_regs->gpvndctl);
+ }
+ val = dwc_read_reg32(&_core_if->core_global_regs->gpvndctl);
+ printk("%s: addr=%02x regval=%02x\n", __func__, addr, val & 0x000000ff);
+
+ return 0;
+}
+#endif
+
+/**
+ * This function initializes the DWC_otg controller registers for
+ * host mode.
+ *
+ * This function flushes the Tx and Rx FIFOs and it flushes any entries in the
+ * request queues. Host channels are reset to ensure that they are ready for
+ * performing transfers.
+ *
+ * @param _core_if Programming view of DWC_otg controller
+ *
+ */
+void dwc_otg_core_host_init(dwc_otg_core_if_t *_core_if)
+{
+ dwc_otg_core_global_regs_t *global_regs = _core_if->core_global_regs;
+ dwc_otg_host_if_t *host_if = _core_if->host_if;
+ dwc_otg_core_params_t *params = _core_if->core_params;
+ hprt0_data_t hprt0 = {.d32 = 0};
+ fifosize_data_t nptxfifosize;
+ fifosize_data_t ptxfifosize;
+ int i;
+ hcchar_data_t hcchar;
+ hcfg_data_t hcfg;
+ dwc_otg_hc_regs_t *hc_regs;
+ int num_channels;
+ gotgctl_data_t gotgctl = {.d32 = 0};
+
+ DWC_DEBUGPL(DBG_CILV,"%s(%p)\n", __func__, _core_if);
+
+ /* Restart the Phy Clock */
+ dwc_write_reg32(_core_if->pcgcctl, 0);
+
+ /* Initialize Host Configuration Register */
+ init_fslspclksel(_core_if);
+ if (_core_if->core_params->speed == DWC_SPEED_PARAM_FULL) {
+ hcfg.d32 = dwc_read_reg32(&host_if->host_global_regs->hcfg);
+ hcfg.b.fslssupp = 1;
+ dwc_write_reg32(&host_if->host_global_regs->hcfg, hcfg.d32);
+ }
+
+ /* Configure data FIFO sizes */
+ if (_core_if->hwcfg2.b.dynamic_fifo && params->enable_dynamic_fifo) {
+ DWC_DEBUGPL(DBG_CIL,"Total FIFO Size=%d\n", _core_if->total_fifo_size);
+ DWC_DEBUGPL(DBG_CIL,"Rx FIFO Size=%d\n", params->host_rx_fifo_size);
+ DWC_DEBUGPL(DBG_CIL,"NP Tx FIFO Size=%d\n", params->host_nperio_tx_fifo_size);
+ DWC_DEBUGPL(DBG_CIL,"P Tx FIFO Size=%d\n", params->host_perio_tx_fifo_size);
+
+ /* Rx FIFO */
+ DWC_DEBUGPL(DBG_CIL,"initial grxfsiz=%08x\n", dwc_read_reg32(&global_regs->grxfsiz));
+ dwc_write_reg32(&global_regs->grxfsiz, params->host_rx_fifo_size);
+ DWC_DEBUGPL(DBG_CIL,"new grxfsiz=%08x\n", dwc_read_reg32(&global_regs->grxfsiz));
+
+ /* Non-periodic Tx FIFO */
+ DWC_DEBUGPL(DBG_CIL,"initial gnptxfsiz=%08x\n", dwc_read_reg32(&global_regs->gnptxfsiz));
+ nptxfifosize.b.depth = params->host_nperio_tx_fifo_size;
+ nptxfifosize.b.startaddr = params->host_rx_fifo_size;
+ dwc_write_reg32(&global_regs->gnptxfsiz, nptxfifosize.d32);
+ DWC_DEBUGPL(DBG_CIL,"new gnptxfsiz=%08x\n", dwc_read_reg32(&global_regs->gnptxfsiz));
+
+ /* Periodic Tx FIFO */
+ DWC_DEBUGPL(DBG_CIL,"initial hptxfsiz=%08x\n", dwc_read_reg32(&global_regs->hptxfsiz));
+ ptxfifosize.b.depth = params->host_perio_tx_fifo_size;
+ ptxfifosize.b.startaddr = nptxfifosize.b.startaddr + nptxfifosize.b.depth;
+ dwc_write_reg32(&global_regs->hptxfsiz, ptxfifosize.d32);
+ DWC_DEBUGPL(DBG_CIL,"new hptxfsiz=%08x\n", dwc_read_reg32(&global_regs->hptxfsiz));
+ }
+
+ /* Clear Host Set HNP Enable in the OTG Control Register */
+ gotgctl.b.hstsethnpen = 1;
+ dwc_modify_reg32( &global_regs->gotgctl, gotgctl.d32, 0);
+
+ /* Make sure the FIFOs are flushed. */
+ dwc_otg_flush_tx_fifo(_core_if, 0x10 /* all Tx FIFOs */);
+ dwc_otg_flush_rx_fifo(_core_if);
+
+ /* Flush out any leftover queued requests. */
+ num_channels = _core_if->core_params->host_channels;
+ for (i = 0; i < num_channels; i++) {
+ hc_regs = _core_if->host_if->hc_regs[i];
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ hcchar.b.chen = 0;
+ hcchar.b.chdis = 1;
+ hcchar.b.epdir = 0;
+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32);
+ }
+
+ /* Halt all channels to put them into a known state. */
+ for (i = 0; i < num_channels; i++) {
+ int count = 0;
+ hc_regs = _core_if->host_if->hc_regs[i];
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ hcchar.b.chen = 1;
+ hcchar.b.chdis = 1;
+ hcchar.b.epdir = 0;
+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32);
+ DWC_DEBUGPL(DBG_HCDV, "%s: Halt channel %d\n", __func__, i);
+ do {
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ if (++count > 200) {
+ DWC_ERROR("%s: Unable to clear halt on channel %d\n",
+ __func__, i);
+ break;
+ }
+ udelay(100);
+ } while (hcchar.b.chen);
+ }
+
+ /* Turn on the vbus power. */
+ DWC_PRINT("Init: Port Power? op_state=%d\n", _core_if->op_state);
+ if (_core_if->op_state == A_HOST){
+ hprt0.d32 = dwc_otg_read_hprt0(_core_if);
+ DWC_PRINT("Init: Power Port (%d)\n", hprt0.b.prtpwr);
+ if (hprt0.b.prtpwr == 0 ) {
+ hprt0.b.prtpwr = 1;
+ dwc_write_reg32(host_if->hprt0, hprt0.d32);
+ }
+ }
+
+ dwc_otg_enable_host_interrupts( _core_if );
+}
+
+/**
+ * Prepares a host channel for transferring packets to/from a specific
+ * endpoint. The HCCHARn register is set up with the characteristics specified
+ * in _hc. Host channel interrupts that may need to be serviced while this
+ * transfer is in progress are enabled.
+ *
+ * @param _core_if Programming view of DWC_otg controller
+ * @param _hc Information needed to initialize the host channel
+ */
+void dwc_otg_hc_init(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc)
+{
+ uint32_t intr_enable;
+ hcintmsk_data_t hc_intr_mask;
+ gintmsk_data_t gintmsk = {.d32 = 0};
+ hcchar_data_t hcchar;
+ hcsplt_data_t hcsplt;
+
+ uint8_t hc_num = _hc->hc_num;
+ dwc_otg_host_if_t *host_if = _core_if->host_if;
+ dwc_otg_hc_regs_t *hc_regs = host_if->hc_regs[hc_num];
+
+ /* Clear old interrupt conditions for this host channel. */
+ hc_intr_mask.d32 = 0xFFFFFFFF;
+ hc_intr_mask.b.reserved = 0;
+ dwc_write_reg32(&hc_regs->hcint, hc_intr_mask.d32);
+
+ /* Enable channel interrupts required for this transfer. */
+ hc_intr_mask.d32 = 0;
+ hc_intr_mask.b.chhltd = 1;
+ if (_core_if->dma_enable) {
+ hc_intr_mask.b.ahberr = 1;
+ if (_hc->error_state && !_hc->do_split &&
+ _hc->ep_type != DWC_OTG_EP_TYPE_ISOC) {
+ hc_intr_mask.b.ack = 1;
+ if (_hc->ep_is_in) {
+ hc_intr_mask.b.datatglerr = 1;
+ if (_hc->ep_type != DWC_OTG_EP_TYPE_INTR) {
+ hc_intr_mask.b.nak = 1;
+ }
+ }
+ }
+ } else {
+ switch (_hc->ep_type) {
+ case DWC_OTG_EP_TYPE_CONTROL:
+ case DWC_OTG_EP_TYPE_BULK:
+ hc_intr_mask.b.xfercompl = 1;
+ hc_intr_mask.b.stall = 1;
+ hc_intr_mask.b.xacterr = 1;
+ hc_intr_mask.b.datatglerr = 1;
+ if (_hc->ep_is_in) {
+ hc_intr_mask.b.bblerr = 1;
+ } else {
+ hc_intr_mask.b.nak = 1;
+ hc_intr_mask.b.nyet = 1;
+ if (_hc->do_ping) {
+ hc_intr_mask.b.ack = 1;
+ }
+ }
+
+ if (_hc->do_split) {
+ hc_intr_mask.b.nak = 1;
+ if (_hc->complete_split) {
+ hc_intr_mask.b.nyet = 1;
+ }
+ else {
+ hc_intr_mask.b.ack = 1;
+ }
+ }
+
+ if (_hc->error_state) {
+ hc_intr_mask.b.ack = 1;
+ }
+ break;
+ case DWC_OTG_EP_TYPE_INTR:
+ hc_intr_mask.b.xfercompl = 1;
+ hc_intr_mask.b.nak = 1;
+ hc_intr_mask.b.stall = 1;
+ hc_intr_mask.b.xacterr = 1;
+ hc_intr_mask.b.datatglerr = 1;
+ hc_intr_mask.b.frmovrun = 1;
+
+ if (_hc->ep_is_in) {
+ hc_intr_mask.b.bblerr = 1;
+ }
+ if (_hc->error_state) {
+ hc_intr_mask.b.ack = 1;
+ }
+ if (_hc->do_split) {
+ if (_hc->complete_split) {
+ hc_intr_mask.b.nyet = 1;
+ }
+ else {
+ hc_intr_mask.b.ack = 1;
+ }
+ }
+ break;
+ case DWC_OTG_EP_TYPE_ISOC:
+ hc_intr_mask.b.xfercompl = 1;
+ hc_intr_mask.b.frmovrun = 1;
+ hc_intr_mask.b.ack = 1;
+
+ if (_hc->ep_is_in) {
+ hc_intr_mask.b.xacterr = 1;
+ hc_intr_mask.b.bblerr = 1;
+ }
+ break;
+ }
+ }
+ dwc_write_reg32(&hc_regs->hcintmsk, hc_intr_mask.d32);
+
+ /* Enable the top level host channel interrupt. */
+ intr_enable = (1 << hc_num);
+ dwc_modify_reg32(&host_if->host_global_regs->haintmsk, 0, intr_enable);
+
+ /* Make sure host channel interrupts are enabled. */
+ gintmsk.b.hcintr = 1;
+ dwc_modify_reg32(&_core_if->core_global_regs->gintmsk, 0, gintmsk.d32);
+
+ /*
+ * Program the HCCHARn register with the endpoint characteristics for
+ * the current transfer.
+ */
+ hcchar.d32 = 0;
+ hcchar.b.devaddr = _hc->dev_addr;
+ hcchar.b.epnum = _hc->ep_num;
+ hcchar.b.epdir = _hc->ep_is_in;
+ hcchar.b.lspddev = (_hc->speed == DWC_OTG_EP_SPEED_LOW);
+ hcchar.b.eptype = _hc->ep_type;
+ hcchar.b.mps = _hc->max_packet;
+
+ dwc_write_reg32(&host_if->hc_regs[hc_num]->hcchar, hcchar.d32);
+
+ DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, _hc->hc_num);
+ DWC_DEBUGPL(DBG_HCDV, " Dev Addr: %d\n", hcchar.b.devaddr);
+ DWC_DEBUGPL(DBG_HCDV, " Ep Num: %d\n", hcchar.b.epnum);
+ DWC_DEBUGPL(DBG_HCDV, " Is In: %d\n", hcchar.b.epdir);
+ DWC_DEBUGPL(DBG_HCDV, " Is Low Speed: %d\n", hcchar.b.lspddev);
+ DWC_DEBUGPL(DBG_HCDV, " Ep Type: %d\n", hcchar.b.eptype);
+ DWC_DEBUGPL(DBG_HCDV, " Max Pkt: %d\n", hcchar.b.mps);
+ DWC_DEBUGPL(DBG_HCDV, " Multi Cnt: %d\n", hcchar.b.multicnt);
+
+ /*
+ * Program the HCSPLIT register for SPLITs
+ */
+ hcsplt.d32 = 0;
+ if (_hc->do_split) {
+ DWC_DEBUGPL(DBG_HCDV, "Programming HC %d with split --> %s\n", _hc->hc_num,
+ _hc->complete_split ? "CSPLIT" : "SSPLIT");
+ hcsplt.b.compsplt = _hc->complete_split;
+ hcsplt.b.xactpos = _hc->xact_pos;
+ hcsplt.b.hubaddr = _hc->hub_addr;
+ hcsplt.b.prtaddr = _hc->port_addr;
+ DWC_DEBUGPL(DBG_HCDV, " comp split %d\n", _hc->complete_split);
+ DWC_DEBUGPL(DBG_HCDV, " xact pos %d\n", _hc->xact_pos);
+ DWC_DEBUGPL(DBG_HCDV, " hub addr %d\n", _hc->hub_addr);
+ DWC_DEBUGPL(DBG_HCDV, " port addr %d\n", _hc->port_addr);
+ DWC_DEBUGPL(DBG_HCDV, " is_in %d\n", _hc->ep_is_in);
+ DWC_DEBUGPL(DBG_HCDV, " Max Pkt: %d\n", hcchar.b.mps);
+ DWC_DEBUGPL(DBG_HCDV, " xferlen: %d\n", _hc->xfer_len);
+ }
+ dwc_write_reg32(&host_if->hc_regs[hc_num]->hcsplt, hcsplt.d32);
+
+}
+
+/**
+ * Attempts to halt a host channel. This function should only be called in
+ * Slave mode or to abort a transfer in either Slave mode or DMA mode. Under
+ * normal circumstances in DMA mode, the controller halts the channel when the
+ * transfer is complete or a condition occurs that requires application
+ * intervention.
+ *
+ * In slave mode, checks for a free request queue entry, then sets the Channel
+ * Enable and Channel Disable bits of the Host Channel Characteristics
+ * register of the specified channel to intiate the halt. If there is no free
+ * request queue entry, sets only the Channel Disable bit of the HCCHARn
+ * register to flush requests for this channel. In the latter case, sets a
+ * flag to indicate that the host channel needs to be halted when a request
+ * queue slot is open.
+ *
+ * In DMA mode, always sets the Channel Enable and Channel Disable bits of the
+ * HCCHARn register. The controller ensures there is space in the request
+ * queue before submitting the halt request.
+ *
+ * Some time may elapse before the core flushes any posted requests for this
+ * host channel and halts. The Channel Halted interrupt handler completes the
+ * deactivation of the host channel.
+ *
+ * @param _core_if Controller register interface.
+ * @param _hc Host channel to halt.
+ * @param _halt_status Reason for halting the channel.
+ */
+void dwc_otg_hc_halt(dwc_otg_core_if_t *_core_if,
+ dwc_hc_t *_hc,
+ dwc_otg_halt_status_e _halt_status)
+{
+ gnptxsts_data_t nptxsts;
+ hptxsts_data_t hptxsts;
+ hcchar_data_t hcchar;
+ dwc_otg_hc_regs_t *hc_regs;
+ dwc_otg_core_global_regs_t *global_regs;
+ dwc_otg_host_global_regs_t *host_global_regs;
+
+ hc_regs = _core_if->host_if->hc_regs[_hc->hc_num];
+ global_regs = _core_if->core_global_regs;
+ host_global_regs = _core_if->host_if->host_global_regs;
+
+ WARN_ON(_halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS);
+
+ if (_halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE ||
+ _halt_status == DWC_OTG_HC_XFER_AHB_ERR) {
+ /*
+ * Disable all channel interrupts except Ch Halted. The QTD
+ * and QH state associated with this transfer has been cleared
+ * (in the case of URB_DEQUEUE), so the channel needs to be
+ * shut down carefully to prevent crashes.
+ */
+ hcintmsk_data_t hcintmsk;
+ hcintmsk.d32 = 0;
+ hcintmsk.b.chhltd = 1;
+ dwc_write_reg32(&hc_regs->hcintmsk, hcintmsk.d32);
+
+ /*
+ * Make sure no other interrupts besides halt are currently
+ * pending. Handling another interrupt could cause a crash due
+ * to the QTD and QH state.
+ */
+ dwc_write_reg32(&hc_regs->hcint, ~hcintmsk.d32);
+
+ /*
+ * Make sure the halt status is set to URB_DEQUEUE or AHB_ERR
+ * even if the channel was already halted for some other
+ * reason.
+ */
+ _hc->halt_status = _halt_status;
+
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ if (hcchar.b.chen == 0) {
+ /*
+ * The channel is either already halted or it hasn't
+ * started yet. In DMA mode, the transfer may halt if
+ * it finishes normally or a condition occurs that
+ * requires driver intervention. Don't want to halt
+ * the channel again. In either Slave or DMA mode,
+ * it's possible that the transfer has been assigned
+ * to a channel, but not started yet when an URB is
+ * dequeued. Don't want to halt a channel that hasn't
+ * started yet.
+ */
+ return;
+ }
+ }
+
+ if (_hc->halt_pending) {
+ /*
+ * A halt has already been issued for this channel. This might
+ * happen when a transfer is aborted by a higher level in
+ * the stack.
+ */
+#ifdef DEBUG
+ DWC_PRINT("*** %s: Channel %d, _hc->halt_pending already set ***\n",
+ __func__, _hc->hc_num);
+
+/* dwc_otg_dump_global_registers(_core_if); */
+/* dwc_otg_dump_host_registers(_core_if); */
+#endif
+ return;
+ }
+
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ hcchar.b.chen = 1;
+ hcchar.b.chdis = 1;
+
+ if (!_core_if->dma_enable) {
+ /* Check for space in the request queue to issue the halt. */
+ if (_hc->ep_type == DWC_OTG_EP_TYPE_CONTROL ||
+ _hc->ep_type == DWC_OTG_EP_TYPE_BULK) {
+ nptxsts.d32 = dwc_read_reg32(&global_regs->gnptxsts);
+ if (nptxsts.b.nptxqspcavail == 0) {
+ hcchar.b.chen = 0;
+ }
+ } else {
+ hptxsts.d32 = dwc_read_reg32(&host_global_regs->hptxsts);
+ if ((hptxsts.b.ptxqspcavail == 0) || (_core_if->queuing_high_bandwidth)) {
+ hcchar.b.chen = 0;
+ }
+ }
+ }
+
+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32);
+
+ _hc->halt_status = _halt_status;
+
+ if (hcchar.b.chen) {
+ _hc->halt_pending = 1;
+ _hc->halt_on_queue = 0;
+ } else {
+ _hc->halt_on_queue = 1;
+ }
+
+ DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, _hc->hc_num);
+ DWC_DEBUGPL(DBG_HCDV, " hcchar: 0x%08x\n", hcchar.d32);
+ DWC_DEBUGPL(DBG_HCDV, " halt_pending: %d\n", _hc->halt_pending);
+ DWC_DEBUGPL(DBG_HCDV, " halt_on_queue: %d\n", _hc->halt_on_queue);
+ DWC_DEBUGPL(DBG_HCDV, " halt_status: %d\n", _hc->halt_status);
+
+ return;
+}
+
+/**
+ * Clears the transfer state for a host channel. This function is normally
+ * called after a transfer is done and the host channel is being released.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _hc Identifies the host channel to clean up.
+ */
+void dwc_otg_hc_cleanup(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc)
+{
+ dwc_otg_hc_regs_t *hc_regs;
+
+ _hc->xfer_started = 0;
+
+ /*
+ * Clear channel interrupt enables and any unhandled channel interrupt
+ * conditions.
+ */
+ hc_regs = _core_if->host_if->hc_regs[_hc->hc_num];
+ dwc_write_reg32(&hc_regs->hcintmsk, 0);
+ dwc_write_reg32(&hc_regs->hcint, 0xFFFFFFFF);
+
+#ifdef DEBUG
+ del_timer(&_core_if->hc_xfer_timer[_hc->hc_num]);
+ {
+ hcchar_data_t hcchar;
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ if (hcchar.b.chdis) {
+ DWC_WARN("%s: chdis set, channel %d, hcchar 0x%08x\n",
+ __func__, _hc->hc_num, hcchar.d32);
+ }
+ }
+#endif
+}
+
+/**
+ * Sets the channel property that indicates in which frame a periodic transfer
+ * should occur. This is always set to the _next_ frame. This function has no
+ * effect on non-periodic transfers.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _hc Identifies the host channel to set up and its properties.
+ * @param _hcchar Current value of the HCCHAR register for the specified host
+ * channel.
+ */
+static inline void hc_set_even_odd_frame(dwc_otg_core_if_t *_core_if,
+ dwc_hc_t *_hc,
+ hcchar_data_t *_hcchar)
+{
+ if (_hc->ep_type == DWC_OTG_EP_TYPE_INTR ||
+ _hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
+ hfnum_data_t hfnum;
+ hfnum.d32 = dwc_read_reg32(&_core_if->host_if->host_global_regs->hfnum);
+ /* 1 if _next_ frame is odd, 0 if it's even */
+ _hcchar->b.oddfrm = (hfnum.b.frnum & 0x1) ? 0 : 1;
+#ifdef DEBUG
+ if (_hc->ep_type == DWC_OTG_EP_TYPE_INTR && _hc->do_split && !_hc->complete_split) {
+ switch (hfnum.b.frnum & 0x7) {
+ case 7:
+ _core_if->hfnum_7_samples++;
+ _core_if->hfnum_7_frrem_accum += hfnum.b.frrem;
+ break;
+ case 0:
+ _core_if->hfnum_0_samples++;
+ _core_if->hfnum_0_frrem_accum += hfnum.b.frrem;
+ break;
+ default:
+ _core_if->hfnum_other_samples++;
+ _core_if->hfnum_other_frrem_accum += hfnum.b.frrem;
+ break;
+ }
+ }
+#endif
+ }
+}
+
+#ifdef DEBUG
+static void hc_xfer_timeout(unsigned long _ptr)
+{
+ hc_xfer_info_t *xfer_info = (hc_xfer_info_t *)_ptr;
+ int hc_num = xfer_info->hc->hc_num;
+ DWC_WARN("%s: timeout on channel %d\n", __func__, hc_num);
+ DWC_WARN(" start_hcchar_val 0x%08x\n", xfer_info->core_if->start_hcchar_val[hc_num]);
+}
+#endif
+
+/*
+ * This function does the setup for a data transfer for a host channel and
+ * starts the transfer. May be called in either Slave mode or DMA mode. In
+ * Slave mode, the caller must ensure that there is sufficient space in the
+ * request queue and Tx Data FIFO.
+ *
+ * For an OUT transfer in Slave mode, it loads a data packet into the
+ * appropriate FIFO. If necessary, additional data packets will be loaded in
+ * the Host ISR.
+ *
+ * For an IN transfer in Slave mode, a data packet is requested. The data
+ * packets are unloaded from the Rx FIFO in the Host ISR. If necessary,
+ * additional data packets are requested in the Host ISR.
+ *
+ * For a PING transfer in Slave mode, the Do Ping bit is set in the HCTSIZ
+ * register along with a packet count of 1 and the channel is enabled. This
+ * causes a single PING transaction to occur. Other fields in HCTSIZ are
+ * simply set to 0 since no data transfer occurs in this case.
+ *
+ * For a PING transfer in DMA mode, the HCTSIZ register is initialized with
+ * all the information required to perform the subsequent data transfer. In
+ * addition, the Do Ping bit is set in the HCTSIZ register. In this case, the
+ * controller performs the entire PING protocol, then starts the data
+ * transfer.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _hc Information needed to initialize the host channel. The xfer_len
+ * value may be reduced to accommodate the max widths of the XferSize and
+ * PktCnt fields in the HCTSIZn register. The multi_count value may be changed
+ * to reflect the final xfer_len value.
+ */
+void dwc_otg_hc_start_transfer(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc)
+{
+ hcchar_data_t hcchar;
+ hctsiz_data_t hctsiz;
+ uint16_t num_packets;
+ uint32_t max_hc_xfer_size = _core_if->core_params->max_transfer_size;
+ uint16_t max_hc_pkt_count = _core_if->core_params->max_packet_count;
+ dwc_otg_hc_regs_t *hc_regs = _core_if->host_if->hc_regs[_hc->hc_num];
+
+ hctsiz.d32 = 0;
+
+ if (_hc->do_ping) {
+ if (!_core_if->dma_enable) {
+ dwc_otg_hc_do_ping(_core_if, _hc);
+ _hc->xfer_started = 1;
+ return;
+ } else {
+ hctsiz.b.dopng = 1;
+ }
+ }
+
+ if (_hc->do_split) {
+ num_packets = 1;
+
+ if (_hc->complete_split && !_hc->ep_is_in) {
+ /* For CSPLIT OUT Transfer, set the size to 0 so the
+ * core doesn't expect any data written to the FIFO */
+ _hc->xfer_len = 0;
+ } else if (_hc->ep_is_in || (_hc->xfer_len > _hc->max_packet)) {
+ _hc->xfer_len = _hc->max_packet;
+ } else if (!_hc->ep_is_in && (_hc->xfer_len > 188)) {
+ _hc->xfer_len = 188;
+ }
+
+ hctsiz.b.xfersize = _hc->xfer_len;
+ } else {
+ /*
+ * Ensure that the transfer length and packet count will fit
+ * in the widths allocated for them in the HCTSIZn register.
+ */
+ if (_hc->ep_type == DWC_OTG_EP_TYPE_INTR ||
+ _hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
+ /*
+ * Make sure the transfer size is no larger than one
+ * (micro)frame's worth of data. (A check was done
+ * when the periodic transfer was accepted to ensure
+ * that a (micro)frame's worth of data can be
+ * programmed into a channel.)
+ */
+ uint32_t max_periodic_len = _hc->multi_count * _hc->max_packet;
+ if (_hc->xfer_len > max_periodic_len) {
+ _hc->xfer_len = max_periodic_len;
+ } else {
+ }
+ } else if (_hc->xfer_len > max_hc_xfer_size) {
+ /* Make sure that xfer_len is a multiple of max packet size. */
+ _hc->xfer_len = max_hc_xfer_size - _hc->max_packet + 1;
+ }
+
+ if (_hc->xfer_len > 0) {
+ num_packets = (_hc->xfer_len + _hc->max_packet - 1) / _hc->max_packet;
+ if (num_packets > max_hc_pkt_count) {
+ num_packets = max_hc_pkt_count;
+ _hc->xfer_len = num_packets * _hc->max_packet;
+ }
+ } else {
+ /* Need 1 packet for transfer length of 0. */
+ num_packets = 1;
+ }
+
+ if (_hc->ep_is_in) {
+ /* Always program an integral # of max packets for IN transfers. */
+ _hc->xfer_len = num_packets * _hc->max_packet;
+ }
+
+ if (_hc->ep_type == DWC_OTG_EP_TYPE_INTR ||
+ _hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
+ /*
+ * Make sure that the multi_count field matches the
+ * actual transfer length.
+ */
+ _hc->multi_count = num_packets;
+
+ }
+
+ if (_hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
+ /* Set up the initial PID for the transfer. */
+ if (_hc->speed == DWC_OTG_EP_SPEED_HIGH) {
+ if (_hc->ep_is_in) {
+ if (_hc->multi_count == 1) {
+ _hc->data_pid_start = DWC_OTG_HC_PID_DATA0;
+ } else if (_hc->multi_count == 2) {
+ _hc->data_pid_start = DWC_OTG_HC_PID_DATA1;
+ } else {
+ _hc->data_pid_start = DWC_OTG_HC_PID_DATA2;
+ }
+ } else {
+ if (_hc->multi_count == 1) {
+ _hc->data_pid_start = DWC_OTG_HC_PID_DATA0;
+ } else {
+ _hc->data_pid_start = DWC_OTG_HC_PID_MDATA;
+ }
+ }
+ } else {
+ _hc->data_pid_start = DWC_OTG_HC_PID_DATA0;
+ }
+ }
+
+ hctsiz.b.xfersize = _hc->xfer_len;
+ }
+
+ _hc->start_pkt_count = num_packets;
+ hctsiz.b.pktcnt = num_packets;
+ hctsiz.b.pid = _hc->data_pid_start;
+ dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32);
+
+ DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, _hc->hc_num);
+ DWC_DEBUGPL(DBG_HCDV, " Xfer Size: %d\n", hctsiz.b.xfersize);
+ DWC_DEBUGPL(DBG_HCDV, " Num Pkts: %d\n", hctsiz.b.pktcnt);
+ DWC_DEBUGPL(DBG_HCDV, " Start PID: %d\n", hctsiz.b.pid);
+
+ if (_core_if->dma_enable) {
+#ifdef DEBUG
+if(((uint32_t)_hc->xfer_buff)%4)
+printk("dwc_otg_hc_start_transfer _hc->xfer_buff not 4 byte alignment\n");
+#endif
+ dwc_write_reg32(&hc_regs->hcdma, (uint32_t)_hc->xfer_buff);
+ }
+
+ /* Start the split */
+ if (_hc->do_split) {
+ hcsplt_data_t hcsplt;
+ hcsplt.d32 = dwc_read_reg32 (&hc_regs->hcsplt);
+ hcsplt.b.spltena = 1;
+ dwc_write_reg32(&hc_regs->hcsplt, hcsplt.d32);
+ }
+
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ hcchar.b.multicnt = _hc->multi_count;
+ hc_set_even_odd_frame(_core_if, _hc, &hcchar);
+#ifdef DEBUG
+ _core_if->start_hcchar_val[_hc->hc_num] = hcchar.d32;
+ if (hcchar.b.chdis) {
+ DWC_WARN("%s: chdis set, channel %d, hcchar 0x%08x\n",
+ __func__, _hc->hc_num, hcchar.d32);
+ }
+#endif
+
+ /* Set host channel enable after all other setup is complete. */
+ hcchar.b.chen = 1;
+ hcchar.b.chdis = 0;
+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32);
+
+ _hc->xfer_started = 1;
+ _hc->requests++;
+
+ if (!_core_if->dma_enable && !_hc->ep_is_in && _hc->xfer_len > 0) {
+ /* Load OUT packet into the appropriate Tx FIFO. */
+ dwc_otg_hc_write_packet(_core_if, _hc);
+ }
+
+#ifdef DEBUG
+ /* Start a timer for this transfer. */
+ _core_if->hc_xfer_timer[_hc->hc_num].function = hc_xfer_timeout;
+ _core_if->hc_xfer_info[_hc->hc_num].core_if = _core_if;
+ _core_if->hc_xfer_info[_hc->hc_num].hc = _hc;
+ _core_if->hc_xfer_timer[_hc->hc_num].data = (unsigned long)(&_core_if->hc_xfer_info[_hc->hc_num]);
+ _core_if->hc_xfer_timer[_hc->hc_num].expires = jiffies + (HZ*10);
+ add_timer(&_core_if->hc_xfer_timer[_hc->hc_num]);
+#endif
+}
+
+/**
+ * This function continues a data transfer that was started by previous call
+ * to <code>dwc_otg_hc_start_transfer</code>. The caller must ensure there is
+ * sufficient space in the request queue and Tx Data FIFO. This function
+ * should only be called in Slave mode. In DMA mode, the controller acts
+ * autonomously to complete transfers programmed to a host channel.
+ *
+ * For an OUT transfer, a new data packet is loaded into the appropriate FIFO
+ * if there is any data remaining to be queued. For an IN transfer, another
+ * data packet is always requested. For the SETUP phase of a control transfer,
+ * this function does nothing.
+ *
+ * @return 1 if a new request is queued, 0 if no more requests are required
+ * for this transfer.
+ */
+int dwc_otg_hc_continue_transfer(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc)
+{
+ DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, _hc->hc_num);
+
+ if (_hc->do_split) {
+ /* SPLITs always queue just once per channel */
+ return 0;
+ } else if (_hc->data_pid_start == DWC_OTG_HC_PID_SETUP) {
+ /* SETUPs are queued only once since they can't be NAKed. */
+ return 0;
+ } else if (_hc->ep_is_in) {
+ /*
+ * Always queue another request for other IN transfers. If
+ * back-to-back INs are issued and NAKs are received for both,
+ * the driver may still be processing the first NAK when the
+ * second NAK is received. When the interrupt handler clears
+ * the NAK interrupt for the first NAK, the second NAK will
+ * not be seen. So we can't depend on the NAK interrupt
+ * handler to requeue a NAKed request. Instead, IN requests
+ * are issued each time this function is called. When the
+ * transfer completes, the extra requests for the channel will
+ * be flushed.
+ */
+ hcchar_data_t hcchar;
+ dwc_otg_hc_regs_t *hc_regs = _core_if->host_if->hc_regs[_hc->hc_num];
+
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ hc_set_even_odd_frame(_core_if, _hc, &hcchar);
+ hcchar.b.chen = 1;
+ hcchar.b.chdis = 0;
+ DWC_DEBUGPL(DBG_HCDV, " IN xfer: hcchar = 0x%08x\n", hcchar.d32);
+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32);
+ _hc->requests++;
+ return 1;
+ } else {
+ /* OUT transfers. */
+ if (_hc->xfer_count < _hc->xfer_len) {
+ if (_hc->ep_type == DWC_OTG_EP_TYPE_INTR ||
+ _hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
+ hcchar_data_t hcchar;
+ dwc_otg_hc_regs_t *hc_regs;
+ hc_regs = _core_if->host_if->hc_regs[_hc->hc_num];
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ hc_set_even_odd_frame(_core_if, _hc, &hcchar);
+ }
+
+ /* Load OUT packet into the appropriate Tx FIFO. */
+ dwc_otg_hc_write_packet(_core_if, _hc);
+ _hc->requests++;
+ return 1;
+ } else {
+ return 0;
+ }
+ }
+}
+
+/**
+ * Starts a PING transfer. This function should only be called in Slave mode.
+ * The Do Ping bit is set in the HCTSIZ register, then the channel is enabled.
+ */
+void dwc_otg_hc_do_ping(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc)
+{
+ hcchar_data_t hcchar;
+ hctsiz_data_t hctsiz;
+ dwc_otg_hc_regs_t *hc_regs = _core_if->host_if->hc_regs[_hc->hc_num];
+
+ DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, _hc->hc_num);
+
+ hctsiz.d32 = 0;
+ hctsiz.b.dopng = 1;
+ hctsiz.b.pktcnt = 1;
+ dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32);
+
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ hcchar.b.chen = 1;
+ hcchar.b.chdis = 0;
+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32);
+}
+
+/*
+ * This function writes a packet into the Tx FIFO associated with the Host
+ * Channel. For a channel associated with a non-periodic EP, the non-periodic
+ * Tx FIFO is written. For a channel associated with a periodic EP, the
+ * periodic Tx FIFO is written. This function should only be called in Slave
+ * mode.
+ *
+ * Upon return the xfer_buff and xfer_count fields in _hc are incremented by
+ * then number of bytes written to the Tx FIFO.
+ */
+void dwc_otg_hc_write_packet(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc)
+{
+ uint32_t i;
+ uint32_t remaining_count;
+ uint32_t byte_count;
+ uint32_t dword_count;
+
+ uint32_t *data_buff = (uint32_t *)(_hc->xfer_buff);
+ uint32_t *data_fifo = _core_if->data_fifo[_hc->hc_num];
+
+ remaining_count = _hc->xfer_len - _hc->xfer_count;
+ if (remaining_count > _hc->max_packet) {
+ byte_count = _hc->max_packet;
+ } else {
+ byte_count = remaining_count;
+ }
+
+ dword_count = (byte_count + 3) / 4;
+
+ if ((((unsigned long)data_buff) & 0x3) == 0) {
+ /* xfer_buff is DWORD aligned. */
+ for (i = 0; i < dword_count; i++, data_buff++) {
+ dwc_write_reg32(data_fifo, *data_buff);
+ }
+ } else {
+ /* xfer_buff is not DWORD aligned. */
+ for (i = 0; i < dword_count; i++, data_buff++) {
+ dwc_write_reg32(data_fifo, get_unaligned(data_buff));
+ }
+ }
+
+ _hc->xfer_count += byte_count;
+ _hc->xfer_buff += byte_count;
+}
+
+/**
+ * Gets the current USB frame number. This is the frame number from the last
+ * SOF packet.
+ */
+uint32_t dwc_otg_get_frame_number(dwc_otg_core_if_t *_core_if)
+{
+ dsts_data_t dsts;
+ dsts.d32 = dwc_read_reg32(&_core_if->dev_if->dev_global_regs->dsts);
+
+ /* read current frame/microfreme number from DSTS register */
+ return dsts.b.soffn;
+}
+
+/**
+ * This function reads a setup packet from the Rx FIFO into the destination
+ * buffer. This function is called from the Rx Status Queue Level (RxStsQLvl)
+ * Interrupt routine when a SETUP packet has been received in Slave mode.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _dest Destination buffer for packet data.
+ */
+void dwc_otg_read_setup_packet(dwc_otg_core_if_t *_core_if, uint32_t *_dest)
+{
+ /* Get the 8 bytes of a setup transaction data */
+
+ /* Pop 2 DWORDS off the receive data FIFO into memory */
+ _dest[0] = dwc_read_reg32(_core_if->data_fifo[0]);
+ _dest[1] = dwc_read_reg32(_core_if->data_fifo[0]);
+ //_dest[0] = dwc_read_datafifo32(_core_if->data_fifo[0]);
+ //_dest[1] = dwc_read_datafifo32(_core_if->data_fifo[0]);
+}
+
+
+/**
+ * This function enables EP0 OUT to receive SETUP packets and configures EP0
+ * IN for transmitting packets. It is normally called when the
+ * "Enumeration Done" interrupt occurs.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _ep The EP0 data.
+ */
+void dwc_otg_ep0_activate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep)
+{
+ dwc_otg_dev_if_t *dev_if = _core_if->dev_if;
+ dsts_data_t dsts;
+ depctl_data_t diepctl;
+ depctl_data_t doepctl;
+ dctl_data_t dctl ={.d32=0};
+
+ /* Read the Device Status and Endpoint 0 Control registers */
+ dsts.d32 = dwc_read_reg32(&dev_if->dev_global_regs->dsts);
+ diepctl.d32 = dwc_read_reg32(&dev_if->in_ep_regs[0]->diepctl);
+ doepctl.d32 = dwc_read_reg32(&dev_if->out_ep_regs[0]->doepctl);
+
+ /* Set the MPS of the IN EP based on the enumeration speed */
+ switch (dsts.b.enumspd) {
+ case DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ:
+ case DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ:
+ case DWC_DSTS_ENUMSPD_FS_PHY_48MHZ:
+ diepctl.b.mps = DWC_DEP0CTL_MPS_64;
+ break;
+ case DWC_DSTS_ENUMSPD_LS_PHY_6MHZ:
+ diepctl.b.mps = DWC_DEP0CTL_MPS_8;
+ break;
+ }
+
+ dwc_write_reg32(&dev_if->in_ep_regs[0]->diepctl, diepctl.d32);
+
+ /* Enable OUT EP for receive */
+ doepctl.b.epena = 1;
+ dwc_write_reg32(&dev_if->out_ep_regs[0]->doepctl, doepctl.d32);
+
+#ifdef VERBOSE
+ DWC_DEBUGPL(DBG_PCDV,"doepctl0=%0x\n",
+ dwc_read_reg32(&dev_if->out_ep_regs[0]->doepctl));
+ DWC_DEBUGPL(DBG_PCDV,"diepctl0=%0x\n",
+ dwc_read_reg32(&dev_if->in_ep_regs[0]->diepctl));
+#endif
+ dctl.b.cgnpinnak = 1;
+ dwc_modify_reg32(&dev_if->dev_global_regs->dctl, dctl.d32, dctl.d32);
+ DWC_DEBUGPL(DBG_PCDV,"dctl=%0x\n",
+ dwc_read_reg32(&dev_if->dev_global_regs->dctl));
+}
+
+/**
+ * This function activates an EP. The Device EP control register for
+ * the EP is configured as defined in the ep structure. Note: This
+ * function is not used for EP0.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _ep The EP to activate.
+ */
+void dwc_otg_ep_activate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep)
+{
+ dwc_otg_dev_if_t *dev_if = _core_if->dev_if;
+ depctl_data_t depctl;
+ volatile uint32_t *addr;
+ daint_data_t daintmsk = {.d32=0};
+
+ DWC_DEBUGPL(DBG_PCDV, "%s() EP%d-%s\n", __func__, _ep->num,
+ (_ep->is_in?"IN":"OUT"));
+
+ /* Read DEPCTLn register */
+ if (_ep->is_in == 1) {
+ addr = &dev_if->in_ep_regs[_ep->num]->diepctl;
+ daintmsk.ep.in = 1<<_ep->num;
+ } else {
+ addr = &dev_if->out_ep_regs[_ep->num]->doepctl;
+ daintmsk.ep.out = 1<<_ep->num;
+ }
+
+ /* If the EP is already active don't change the EP Control
+ * register. */
+ depctl.d32 = dwc_read_reg32(addr);
+ if (!depctl.b.usbactep) {
+ depctl.b.mps = _ep->maxpacket;
+ depctl.b.eptype = _ep->type;
+ depctl.b.txfnum = _ep->tx_fifo_num;
+
+ if (_ep->type == DWC_OTG_EP_TYPE_ISOC) {
+ depctl.b.setd0pid = 1; // ???
+ } else {
+ depctl.b.setd0pid = 1;
+ }
+ depctl.b.usbactep = 1;
+
+ dwc_write_reg32(addr, depctl.d32);
+ DWC_DEBUGPL(DBG_PCDV,"DEPCTL=%08x\n", dwc_read_reg32(addr));
+ }
+
+
+ /* Enable the Interrupt for this EP */
+ dwc_modify_reg32(&dev_if->dev_global_regs->daintmsk,
+ 0, daintmsk.d32);
+ DWC_DEBUGPL(DBG_PCDV,"DAINTMSK=%0x\n",
+ dwc_read_reg32(&dev_if->dev_global_regs->daintmsk));
+ _ep->stall_clear_flag = 0;
+ return;
+}
+
+/**
+ * This function deactivates an EP. This is done by clearing the USB Active
+ * EP bit in the Device EP control register. Note: This function is not used
+ * for EP0. EP0 cannot be deactivated.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _ep The EP to deactivate.
+ */
+void dwc_otg_ep_deactivate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep)
+{
+ depctl_data_t depctl ={.d32 = 0};
+ volatile uint32_t *addr;
+ daint_data_t daintmsk = {.d32=0};
+
+ /* Read DEPCTLn register */
+ if (_ep->is_in == 1) {
+ addr = &_core_if->dev_if->in_ep_regs[_ep->num]->diepctl;
+ daintmsk.ep.in = 1<<_ep->num;
+ } else {
+ addr = &_core_if->dev_if->out_ep_regs[_ep->num]->doepctl;
+ daintmsk.ep.out = 1<<_ep->num;
+ }
+
+ depctl.b.usbactep = 0;
+ dwc_write_reg32(addr, depctl.d32);
+
+ /* Disable the Interrupt for this EP */
+ dwc_modify_reg32(&_core_if->dev_if->dev_global_regs->daintmsk,
+ daintmsk.d32, 0);
+
+ return;
+}
+
+/**
+ * This function does the setup for a data transfer for an EP and
+ * starts the transfer. For an IN transfer, the packets will be
+ * loaded into the appropriate Tx FIFO in the ISR. For OUT transfers,
+ * the packets are unloaded from the Rx FIFO in the ISR. the ISR.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _ep The EP to start the transfer on.
+ */
+void dwc_otg_ep_start_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep)
+{
+ /** @todo Refactor this funciton to check the transfer size
+ * count value does not execed the number bits in the Transfer
+ * count register. */
+ depctl_data_t depctl;
+ deptsiz_data_t deptsiz;
+ gintmsk_data_t intr_mask = { .d32 = 0};
+
+#ifdef CHECK_PACKET_COUNTER_WIDTH
+ const uint32_t MAX_XFER_SIZE =
+ _core_if->core_params->max_transfer_size;
+ const uint32_t MAX_PKT_COUNT =
+ _core_if->core_params->max_packet_count;
+ uint32_t num_packets;
+ uint32_t transfer_len;
+ dwc_otg_dev_out_ep_regs_t *out_regs =
+ _core_if->dev_if->out_ep_regs[_ep->num];
+ dwc_otg_dev_in_ep_regs_t *in_regs =
+ _core_if->dev_if->in_ep_regs[_ep->num];
+ gnptxsts_data_t txstatus;
+
+ int lvl = SET_DEBUG_LEVEL(DBG_PCD);
+
+
+ DWC_DEBUGPL(DBG_PCD, "ep%d-%s xfer_len=%d xfer_cnt=%d "
+ "xfer_buff=%p start_xfer_buff=%p\n",
+ _ep->num, (_ep->is_in?"IN":"OUT"), _ep->xfer_len,
+ _ep->xfer_count, _ep->xfer_buff, _ep->start_xfer_buff);
+
+ transfer_len = _ep->xfer_len - _ep->xfer_count;
+ if (transfer_len > MAX_XFER_SIZE) {
+ transfer_len = MAX_XFER_SIZE;
+ }
+ if (transfer_len == 0) {
+ num_packets = 1;
+ /* OUT EP to recieve Zero-length packet set transfer
+ * size to maxpacket size. */
+ if (!_ep->is_in) {
+ transfer_len = _ep->maxpacket;
+ }
+ } else {
+ num_packets =
+ (transfer_len + _ep->maxpacket - 1) / _ep->maxpacket;
+ if (num_packets > MAX_PKT_COUNT) {
+ num_packets = MAX_PKT_COUNT;
+ }
+ }
+ DWC_DEBUGPL(DBG_PCD, "transfer_len=%d #pckt=%d\n", transfer_len,
+ num_packets);
+
+ deptsiz.b.xfersize = transfer_len;
+ deptsiz.b.pktcnt = num_packets;
+
+ /* IN endpoint */
+ if (_ep->is_in == 1) {
+ depctl.d32 = dwc_read_reg32(&in_regs->diepctl);
+ } else {/* OUT endpoint */
+ depctl.d32 = dwc_read_reg32(&out_regs->doepctl);
+ }
+
+ /* EP enable, IN data in FIFO */
+ depctl.b.cnak = 1;
+ depctl.b.epena = 1;
+ /* IN endpoint */
+ if (_ep->is_in == 1) {
+ txstatus.d32 =
+ dwc_read_reg32(&_core_if->core_global_regs->gnptxsts);
+ if (txstatus.b.nptxqspcavail == 0) {
+ DWC_DEBUGPL(DBG_ANY, "TX Queue Full (0x%0x)\n",
+ txstatus.d32);
+ return;
+ }
+ dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32);
+ dwc_write_reg32(&in_regs->diepctl, depctl.d32);
+ /**
+ * Enable the Non-Periodic Tx FIFO empty interrupt, the
+ * data will be written into the fifo by the ISR.
+ */
+ if (_core_if->dma_enable) {
+ dwc_write_reg32(&in_regs->diepdma, (uint32_t) _ep->xfer_buff);
+ } else {
+ if (_core_if->en_multiple_tx_fifo == 0) {
+ intr_mask.b.nptxfempty = 1;
+ dwc_modify_reg32( &_core_if->core_global_regs->gintsts,
+ intr_mask.d32, 0);
+ dwc_modify_reg32( &_core_if->core_global_regs->gintmsk,
+ intr_mask.d32, intr_mask.d32);
+ } else {
+ /* Enable the Tx FIFO Empty Interrupt for this EP */
+ if (_ep->xfer_len > 0 &&
+ _ep->type != DWC_OTG_EP_TYPE_ISOC) {
+ uint32_t fifoemptymsk = 0;
+ fifoemptymsk = (0x1 << _ep->num);
+ dwc_modify_reg32(&_core_if->dev_if->dev_global_regs->
+ dtknqr4_fifoemptymsk,0, fifoemptymsk);
+ }
+ }
+ }
+ } else { /* OUT endpoint */
+ dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32);
+ dwc_write_reg32(&out_regs->doepctl, depctl.d32);
+ if (_core_if->dma_enable) {
+ dwc_write_reg32(&out_regs->doepdma,(uint32_t) _ep->xfer_buff);
+ }
+ }
+ DWC_DEBUGPL(DBG_PCD, "DOEPCTL=%08x DOEPTSIZ=%08x\n",
+ dwc_read_reg32(&out_regs->doepctl),
+ dwc_read_reg32(&out_regs->doeptsiz));
+ DWC_DEBUGPL(DBG_PCD, "DAINTMSK=%08x GINTMSK=%08x\n",
+ dwc_read_reg32(&_core_if->dev_if->dev_global_regs->daintmsk),
+ dwc_read_reg32(&_core_if->core_global_regs->gintmsk));
+
+ SET_DEBUG_LEVEL(lvl);
+#endif
+ DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s()\n", __func__);
+
+ DWC_DEBUGPL(DBG_PCD, "ep%d-%s xfer_len=%d xfer_cnt=%d "
+ "xfer_buff=%p start_xfer_buff=%p\n",
+ _ep->num, (_ep->is_in?"IN":"OUT"), _ep->xfer_len,
+ _ep->xfer_count, _ep->xfer_buff, _ep->start_xfer_buff);
+
+ /* IN endpoint */
+ if (_ep->is_in == 1) {
+ dwc_otg_dev_in_ep_regs_t * in_regs = _core_if->dev_if->in_ep_regs[_ep->num];
+ gnptxsts_data_t gtxstatus;
+ gtxstatus.d32 = dwc_read_reg32(&_core_if->core_global_regs->gnptxsts);
+ if (_core_if->en_multiple_tx_fifo == 0 &&
+ gtxstatus.b.nptxqspcavail == 0) {
+#ifdef DEBUG
+ DWC_PRINT("TX Queue Full (0x%0x)\n", gtxstatus.d32);
+#endif
+ //return;
+ MDELAY(100); //james
+ }
+
+ depctl.d32 = dwc_read_reg32(&(in_regs->diepctl));
+ deptsiz.d32 = dwc_read_reg32(&(in_regs->dieptsiz));
+
+ /* Zero Length Packet? */
+ if (_ep->xfer_len == 0) {
+ deptsiz.b.xfersize = 0;
+ deptsiz.b.pktcnt = 1;
+ } else {
+
+ /* Program the transfer size and packet count
+ * as follows: xfersize = N * maxpacket +
+ * short_packet pktcnt = N + (short_packet
+ * exist ? 1 : 0)
+ */
+ deptsiz.b.xfersize = _ep->xfer_len;
+ deptsiz.b.pktcnt = (_ep->xfer_len - 1 + _ep->maxpacket) / _ep->maxpacket;
+ }
+
+ dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32);
+
+ /* Write the DMA register */
+ if (_core_if->dma_enable) {
+#if 1 // winder
+ dma_cache_wback_inv((unsigned long) _ep->xfer_buff, _ep->xfer_len); // winder
+ dwc_write_reg32 (&(in_regs->diepdma),
+ CPHYSADDR((uint32_t)_ep->xfer_buff)); // winder
+#else
+ dwc_write_reg32 (&(in_regs->diepdma),
+ (uint32_t)_ep->dma_addr);
+#endif
+ } else {
+ if (_ep->type != DWC_OTG_EP_TYPE_ISOC) {
+ /**
+ * Enable the Non-Periodic Tx FIFO empty interrupt,
+ * or the Tx FIFO epmty interrupt in dedicated Tx FIFO mode,
+ * the data will be written into the fifo by the ISR.
+ */
+ if (_core_if->en_multiple_tx_fifo == 0) {
+ intr_mask.b.nptxfempty = 1;
+ dwc_modify_reg32( &_core_if->core_global_regs->gintsts,
+ intr_mask.d32, 0);
+ dwc_modify_reg32( &_core_if->core_global_regs->gintmsk,
+ intr_mask.d32, intr_mask.d32);
+ } else {
+ /* Enable the Tx FIFO Empty Interrupt for this EP */
+ if (_ep->xfer_len > 0) {
+ uint32_t fifoemptymsk = 0;
+ fifoemptymsk = 1 << _ep->num;
+ dwc_modify_reg32(&_core_if->dev_if->dev_global_regs->
+ dtknqr4_fifoemptymsk,0,fifoemptymsk);
+ }
+ }
+ }
+ }
+
+ /* EP enable, IN data in FIFO */
+ depctl.b.cnak = 1;
+ depctl.b.epena = 1;
+ dwc_write_reg32(&in_regs->diepctl, depctl.d32);
+
+ if (_core_if->dma_enable) {
+ depctl.d32 = dwc_read_reg32 (&_core_if->dev_if->in_ep_regs[0]->diepctl);
+ depctl.b.nextep = _ep->num;
+ dwc_write_reg32 (&_core_if->dev_if->in_ep_regs[0]->diepctl, depctl.d32);
+
+ }
+ } else {
+ /* OUT endpoint */
+ dwc_otg_dev_out_ep_regs_t * out_regs = _core_if->dev_if->out_ep_regs[_ep->num];
+
+ depctl.d32 = dwc_read_reg32(&(out_regs->doepctl));
+ deptsiz.d32 = dwc_read_reg32(&(out_regs->doeptsiz));
+
+ /* Program the transfer size and packet count as follows:
+ *
+ * pktcnt = N
+ * xfersize = N * maxpacket
+ */
+ if (_ep->xfer_len == 0) {
+ /* Zero Length Packet */
+ deptsiz.b.xfersize = _ep->maxpacket;
+ deptsiz.b.pktcnt = 1;
+ } else {
+ deptsiz.b.pktcnt = (_ep->xfer_len + (_ep->maxpacket - 1)) / _ep->maxpacket;
+ deptsiz.b.xfersize = deptsiz.b.pktcnt * _ep->maxpacket;
+ }
+ dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32);
+
+ DWC_DEBUGPL(DBG_PCDV, "ep%d xfersize=%d pktcnt=%d\n",
+ _ep->num, deptsiz.b.xfersize, deptsiz.b.pktcnt);
+
+ if (_core_if->dma_enable) {
+#if 1 // winder
+ dwc_write_reg32 (&(out_regs->doepdma),
+ CPHYSADDR((uint32_t)_ep->xfer_buff)); // winder
+#else
+ dwc_write_reg32 (&(out_regs->doepdma),
+ (uint32_t)_ep->dma_addr);
+#endif
+ }
+
+ if (_ep->type == DWC_OTG_EP_TYPE_ISOC) {
+ /** @todo NGS: dpid is read-only. Use setd0pid
+ * or setd1pid. */
+ if (_ep->even_odd_frame) {
+ depctl.b.setd1pid = 1;
+ } else {
+ depctl.b.setd0pid = 1;
+ }
+ }
+
+ /* EP enable */
+ depctl.b.cnak = 1;
+ depctl.b.epena = 1;
+
+ dwc_write_reg32(&out_regs->doepctl, depctl.d32);
+
+ DWC_DEBUGPL(DBG_PCD, "DOEPCTL=%08x DOEPTSIZ=%08x\n",
+ dwc_read_reg32(&out_regs->doepctl),
+ dwc_read_reg32(&out_regs->doeptsiz));
+ DWC_DEBUGPL(DBG_PCD, "DAINTMSK=%08x GINTMSK=%08x\n",
+ dwc_read_reg32(&_core_if->dev_if->dev_global_regs->daintmsk),
+ dwc_read_reg32(&_core_if->core_global_regs->gintmsk));
+ }
+}
+
+
+/**
+ * This function does the setup for a data transfer for EP0 and starts
+ * the transfer. For an IN transfer, the packets will be loaded into
+ * the appropriate Tx FIFO in the ISR. For OUT transfers, the packets are
+ * unloaded from the Rx FIFO in the ISR.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _ep The EP0 data.
+ */
+void dwc_otg_ep0_start_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep)
+{
+ volatile depctl_data_t depctl;
+ volatile deptsiz0_data_t deptsiz;
+ gintmsk_data_t intr_mask = { .d32 = 0};
+
+ DWC_DEBUGPL(DBG_PCD, "ep%d-%s xfer_len=%d xfer_cnt=%d "
+ "xfer_buff=%p start_xfer_buff=%p total_len=%d\n",
+ _ep->num, (_ep->is_in?"IN":"OUT"), _ep->xfer_len,
+ _ep->xfer_count, _ep->xfer_buff, _ep->start_xfer_buff,
+ _ep->total_len);
+ _ep->total_len = _ep->xfer_len;
+
+ /* IN endpoint */
+ if (_ep->is_in == 1) {
+ dwc_otg_dev_in_ep_regs_t * in_regs = _core_if->dev_if->in_ep_regs[0];
+ gnptxsts_data_t gtxstatus;
+ gtxstatus.d32 = dwc_read_reg32(&_core_if->core_global_regs->gnptxsts);
+ if (_core_if->en_multiple_tx_fifo == 0 &&
+ gtxstatus.b.nptxqspcavail == 0) {
+#ifdef DEBUG
+ deptsiz.d32 = dwc_read_reg32(&in_regs->dieptsiz);
+ DWC_DEBUGPL(DBG_PCD,"DIEPCTL0=%0x\n",
+ dwc_read_reg32(&in_regs->diepctl));
+ DWC_DEBUGPL(DBG_PCD, "DIEPTSIZ0=%0x (sz=%d, pcnt=%d)\n",
+ deptsiz.d32, deptsiz.b.xfersize,deptsiz.b.pktcnt);
+ DWC_PRINT("TX Queue or FIFO Full (0x%0x)\n", gtxstatus.d32);
+#endif /* */
+ printk("TX Queue or FIFO Full!!!!\n"); // test-only
+ //return;
+ MDELAY(100); //james
+ }
+
+ depctl.d32 = dwc_read_reg32(&in_regs->diepctl);
+ deptsiz.d32 = dwc_read_reg32(&in_regs->dieptsiz);
+
+ /* Zero Length Packet? */
+ if (_ep->xfer_len == 0) {
+ deptsiz.b.xfersize = 0;
+ deptsiz.b.pktcnt = 1;
+ } else {
+ /* Program the transfer size and packet count
+ * as follows: xfersize = N * maxpacket +
+ * short_packet pktcnt = N + (short_packet
+ * exist ? 1 : 0)
+ */
+ if (_ep->xfer_len > _ep->maxpacket) {
+ _ep->xfer_len = _ep->maxpacket;
+ deptsiz.b.xfersize = _ep->maxpacket;
+ }
+ else {
+ deptsiz.b.xfersize = _ep->xfer_len;
+ }
+ deptsiz.b.pktcnt = 1;
+
+ }
+ dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32);
+ DWC_DEBUGPL(DBG_PCDV, "IN len=%d xfersize=%d pktcnt=%d [%08x]\n",
+ _ep->xfer_len, deptsiz.b.xfersize,deptsiz.b.pktcnt, deptsiz.d32);
+
+ /* Write the DMA register */
+ if (_core_if->dma_enable) {
+ dwc_write_reg32(&(in_regs->diepdma), (uint32_t) _ep->dma_addr);
+ }
+
+ /* EP enable, IN data in FIFO */
+ depctl.b.cnak = 1;
+ depctl.b.epena = 1;
+ dwc_write_reg32(&in_regs->diepctl, depctl.d32);
+
+ /**
+ * Enable the Non-Periodic Tx FIFO empty interrupt, the
+ * data will be written into the fifo by the ISR.
+ */
+ if (!_core_if->dma_enable) {
+ if (_core_if->en_multiple_tx_fifo == 0) {
+ intr_mask.b.nptxfempty = 1;
+ dwc_modify_reg32(&_core_if->core_global_regs->gintsts, intr_mask.d32, 0);
+ dwc_modify_reg32(&_core_if->core_global_regs->gintmsk, intr_mask.d32,
+ intr_mask.d32);
+ } else {
+ /* Enable the Tx FIFO Empty Interrupt for this EP */
+ if (_ep->xfer_len > 0) {
+ uint32_t fifoemptymsk = 0;
+ fifoemptymsk |= 1 << _ep->num;
+ dwc_modify_reg32(&_core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk,
+ 0, fifoemptymsk);
+ }
+
+ }
+ }
+ } else {
+ /* OUT endpoint */
+ dwc_otg_dev_out_ep_regs_t * out_regs = _core_if->dev_if->out_ep_regs[_ep->num];
+
+ depctl.d32 = dwc_read_reg32(&out_regs->doepctl);
+ deptsiz.d32 = dwc_read_reg32(&out_regs->doeptsiz);
+
+ /* Program the transfer size and packet count as follows:
+ * xfersize = N * (maxpacket + 4 - (maxpacket % 4))
+ * pktcnt = N */
+ if (_ep->xfer_len == 0) {
+ /* Zero Length Packet */
+ deptsiz.b.xfersize = _ep->maxpacket;
+ deptsiz.b.pktcnt = 1;
+ } else {
+ deptsiz.b.pktcnt = (_ep->xfer_len + (_ep->maxpacket - 1)) / _ep->maxpacket;
+ deptsiz.b.xfersize = deptsiz.b.pktcnt * _ep->maxpacket;
+ }
+
+ dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32);
+ DWC_DEBUGPL(DBG_PCDV, "len=%d xfersize=%d pktcnt=%d\n",
+ _ep->xfer_len, deptsiz.b.xfersize,deptsiz.b.pktcnt);
+
+ if (_core_if->dma_enable) {
+ dwc_write_reg32(&(out_regs->doepdma), (uint32_t) _ep->dma_addr);
+ }
+
+ /* EP enable */
+ depctl.b.cnak = 1;
+ depctl.b.epena = 1;
+ dwc_write_reg32 (&(out_regs->doepctl), depctl.d32);
+ }
+}
+
+/**
+ * This function continues control IN transfers started by
+ * dwc_otg_ep0_start_transfer, when the transfer does not fit in a
+ * single packet. NOTE: The DIEPCTL0/DOEPCTL0 registers only have one
+ * bit for the packet count.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _ep The EP0 data.
+ */
+void dwc_otg_ep0_continue_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep)
+{
+ depctl_data_t depctl;
+ deptsiz0_data_t deptsiz;
+ gintmsk_data_t intr_mask = { .d32 = 0};
+
+ if (_ep->is_in == 1) {
+ dwc_otg_dev_in_ep_regs_t *in_regs =
+ _core_if->dev_if->in_ep_regs[0];
+ gnptxsts_data_t tx_status = {.d32 = 0};
+
+ tx_status.d32 = dwc_read_reg32( &_core_if->core_global_regs->gnptxsts );
+ /** @todo Should there be check for room in the Tx
+ * Status Queue. If not remove the code above this comment. */
+
+ depctl.d32 = dwc_read_reg32(&in_regs->diepctl);
+ deptsiz.d32 = dwc_read_reg32(&in_regs->dieptsiz);
+
+ /* Program the transfer size and packet count
+ * as follows: xfersize = N * maxpacket +
+ * short_packet pktcnt = N + (short_packet
+ * exist ? 1 : 0)
+ */
+ deptsiz.b.xfersize = (_ep->total_len - _ep->xfer_count) > _ep->maxpacket ? _ep->maxpacket :
+ (_ep->total_len - _ep->xfer_count);
+ deptsiz.b.pktcnt = 1;
+ _ep->xfer_len += deptsiz.b.xfersize;
+
+ dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32);
+ DWC_DEBUGPL(DBG_PCDV, "IN len=%d xfersize=%d pktcnt=%d [%08x]\n",
+ _ep->xfer_len,
+ deptsiz.b.xfersize, deptsiz.b.pktcnt, deptsiz.d32);
+
+ /* Write the DMA register */
+ if (_core_if->hwcfg2.b.architecture == DWC_INT_DMA_ARCH) {
+ dwc_write_reg32 (&(in_regs->diepdma),
+ CPHYSADDR((uint32_t)_ep->dma_addr)); // winder
+ }
+
+ /* EP enable, IN data in FIFO */
+ depctl.b.cnak = 1;
+ depctl.b.epena = 1;
+ dwc_write_reg32(&in_regs->diepctl, depctl.d32);
+
+ /**
+ * Enable the Non-Periodic Tx FIFO empty interrupt, the
+ * data will be written into the fifo by the ISR.
+ */
+ if (!_core_if->dma_enable) {
+ /* First clear it from GINTSTS */
+ intr_mask.b.nptxfempty = 1;
+ dwc_write_reg32( &_core_if->core_global_regs->gintsts,
+ intr_mask.d32 );
+
+ dwc_modify_reg32( &_core_if->core_global_regs->gintmsk,
+ intr_mask.d32, intr_mask.d32);
+ }
+
+ }
+
+}
+
+#ifdef DEBUG
+void dump_msg(const u8 *buf, unsigned int length)
+{
+ unsigned int start, num, i;
+ char line[52], *p;
+
+ if (length >= 512)
+ return;
+ start = 0;
+ while (length > 0) {
+ num = min(length, 16u);
+ p = line;
+ for (i = 0; i < num; ++i) {
+ if (i == 8)
+ *p++ = ' ';
+ sprintf(p, " %02x", buf[i]);
+ p += 3;
+ }
+ *p = 0;
+ DWC_PRINT( "%6x: %s\n", start, line);
+ buf += num;
+ start += num;
+ length -= num;
+ }
+}
+#else
+static inline void dump_msg(const u8 *buf, unsigned int length)
+{
+}
+#endif
+
+/**
+ * This function writes a packet into the Tx FIFO associated with the
+ * EP. For non-periodic EPs the non-periodic Tx FIFO is written. For
+ * periodic EPs the periodic Tx FIFO associated with the EP is written
+ * with all packets for the next micro-frame.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _ep The EP to write packet for.
+ * @param _dma Indicates if DMA is being used.
+ */
+void dwc_otg_ep_write_packet(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep, int _dma)
+{
+ /**
+ * The buffer is padded to DWORD on a per packet basis in
+ * slave/dma mode if the MPS is not DWORD aligned. The last
+ * packet, if short, is also padded to a multiple of DWORD.
+ *
+ * ep->xfer_buff always starts DWORD aligned in memory and is a
+ * multiple of DWORD in length
+ *
+ * ep->xfer_len can be any number of bytes
+ *
+ * ep->xfer_count is a multiple of ep->maxpacket until the last
+ * packet
+ *
+ * FIFO access is DWORD */
+
+ uint32_t i;
+ uint32_t byte_count;
+ uint32_t dword_count;
+ uint32_t *fifo;
+ uint32_t *data_buff = (uint32_t *)_ep->xfer_buff;
+
+ //DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s(%p,%p)\n", __func__, _core_if, _ep);
+ if (_ep->xfer_count >= _ep->xfer_len) {
+ DWC_WARN("%s() No data for EP%d!!!\n", __func__, _ep->num);
+ return;
+ }
+
+ /* Find the byte length of the packet either short packet or MPS */
+ if ((_ep->xfer_len - _ep->xfer_count) < _ep->maxpacket) {
+ byte_count = _ep->xfer_len - _ep->xfer_count;
+ }
+ else {
+ byte_count = _ep->maxpacket;
+ }
+
+ /* Find the DWORD length, padded by extra bytes as neccessary if MPS
+ * is not a multiple of DWORD */
+ dword_count = (byte_count + 3) / 4;
+
+#ifdef VERBOSE
+ dump_msg(_ep->xfer_buff, byte_count);
+#endif
+ if (_ep->type == DWC_OTG_EP_TYPE_ISOC) {
+ /**@todo NGS Where are the Periodic Tx FIFO addresses
+ * intialized? What should this be? */
+ fifo = _core_if->data_fifo[_ep->tx_fifo_num];
+ } else {
+ fifo = _core_if->data_fifo[_ep->num];
+ }
+
+ DWC_DEBUGPL((DBG_PCDV|DBG_CILV), "fifo=%p buff=%p *p=%08x bc=%d\n",
+ fifo, data_buff, *data_buff, byte_count);
+
+
+ if (!_dma) {
+ for (i=0; i<dword_count; i++, data_buff++) {
+ dwc_write_reg32( fifo, *data_buff );
+ }
+ }
+
+ _ep->xfer_count += byte_count;
+ _ep->xfer_buff += byte_count;
+#if 1 // winder, why do we need this??
+ _ep->dma_addr += byte_count;
+#endif
+}
+
+/**
+ * Set the EP STALL.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _ep The EP to set the stall on.
+ */
+void dwc_otg_ep_set_stall(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep)
+{
+ depctl_data_t depctl;
+ volatile uint32_t *depctl_addr;
+
+ DWC_DEBUGPL(DBG_PCD, "%s ep%d-%s\n", __func__, _ep->num,
+ (_ep->is_in?"IN":"OUT"));
+
+ if (_ep->is_in == 1) {
+ depctl_addr = &(_core_if->dev_if->in_ep_regs[_ep->num]->diepctl);
+ depctl.d32 = dwc_read_reg32(depctl_addr);
+
+ /* set the disable and stall bits */
+ if (depctl.b.epena) {
+ depctl.b.epdis = 1;
+ }
+ depctl.b.stall = 1;
+ dwc_write_reg32(depctl_addr, depctl.d32);
+
+ } else {
+ depctl_addr = &(_core_if->dev_if->out_ep_regs[_ep->num]->doepctl);
+ depctl.d32 = dwc_read_reg32(depctl_addr);
+
+ /* set the stall bit */
+ depctl.b.stall = 1;
+ dwc_write_reg32(depctl_addr, depctl.d32);
+ }
+ DWC_DEBUGPL(DBG_PCD,"DEPCTL=%0x\n",dwc_read_reg32(depctl_addr));
+ return;
+}
+
+/**
+ * Clear the EP STALL.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _ep The EP to clear stall from.
+ */
+void dwc_otg_ep_clear_stall(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep)
+{
+ depctl_data_t depctl;
+ volatile uint32_t *depctl_addr;
+
+ DWC_DEBUGPL(DBG_PCD, "%s ep%d-%s\n", __func__, _ep->num,
+ (_ep->is_in?"IN":"OUT"));
+
+ if (_ep->is_in == 1) {
+ depctl_addr = &(_core_if->dev_if->in_ep_regs[_ep->num]->diepctl);
+ } else {
+ depctl_addr = &(_core_if->dev_if->out_ep_regs[_ep->num]->doepctl);
+ }
+
+ depctl.d32 = dwc_read_reg32(depctl_addr);
+
+ /* clear the stall bits */
+ depctl.b.stall = 0;
+
+ /*
+ * USB Spec 9.4.5: For endpoints using data toggle, regardless
+ * of whether an endpoint has the Halt feature set, a
+ * ClearFeature(ENDPOINT_HALT) request always results in the
+ * data toggle being reinitialized to DATA0.
+ */
+ if (_ep->type == DWC_OTG_EP_TYPE_INTR ||
+ _ep->type == DWC_OTG_EP_TYPE_BULK) {
+ depctl.b.setd0pid = 1; /* DATA0 */
+ }
+
+ dwc_write_reg32(depctl_addr, depctl.d32);
+ DWC_DEBUGPL(DBG_PCD,"DEPCTL=%0x\n",dwc_read_reg32(depctl_addr));
+ return;
+}
+
+/**
+ * This function reads a packet from the Rx FIFO into the destination
+ * buffer. To read SETUP data use dwc_otg_read_setup_packet.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _dest Destination buffer for the packet.
+ * @param _bytes Number of bytes to copy to the destination.
+ */
+void dwc_otg_read_packet(dwc_otg_core_if_t *_core_if,
+ uint8_t *_dest,
+ uint16_t _bytes)
+{
+ int i;
+ int word_count = (_bytes + 3) / 4;
+
+ volatile uint32_t *fifo = _core_if->data_fifo[0];
+ uint32_t *data_buff = (uint32_t *)_dest;
+
+ /**
+ * @todo Account for the case where _dest is not dword aligned. This
+ * requires reading data from the FIFO into a uint32_t temp buffer,
+ * then moving it into the data buffer.
+ */
+
+ DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s(%p,%p,%d)\n", __func__,
+ _core_if, _dest, _bytes);
+
+ for (i=0; i<word_count; i++, data_buff++) {
+ *data_buff = dwc_read_reg32(fifo);
+ }
+
+ return;
+}
+
+
+#ifdef DEBUG
+/**
+ * This functions reads the device registers and prints them
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+void dwc_otg_dump_dev_registers(dwc_otg_core_if_t *_core_if)
+{
+ int i;
+ volatile uint32_t *addr;
+
+ DWC_PRINT("Device Global Registers\n");
+ addr=&_core_if->dev_if->dev_global_regs->dcfg;
+ DWC_PRINT("DCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->dev_if->dev_global_regs->dctl;
+ DWC_PRINT("DCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->dev_if->dev_global_regs->dsts;
+ DWC_PRINT("DSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->dev_if->dev_global_regs->diepmsk;
+ DWC_PRINT("DIEPMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->dev_if->dev_global_regs->doepmsk;
+ DWC_PRINT("DOEPMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->dev_if->dev_global_regs->daint;
+ DWC_PRINT("DAINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->dev_if->dev_global_regs->dtknqr1;
+ DWC_PRINT("DTKNQR1 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ if (_core_if->hwcfg2.b.dev_token_q_depth > 6) {
+ addr=&_core_if->dev_if->dev_global_regs->dtknqr2;
+ DWC_PRINT("DTKNQR2 @0x%08X : 0x%08X\n",
+ (uint32_t)addr,dwc_read_reg32(addr));
+ }
+
+ addr=&_core_if->dev_if->dev_global_regs->dvbusdis;
+ DWC_PRINT("DVBUSID @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+
+ addr=&_core_if->dev_if->dev_global_regs->dvbuspulse;
+ DWC_PRINT("DVBUSPULSE @0x%08X : 0x%08X\n",
+ (uint32_t)addr,dwc_read_reg32(addr));
+
+ if (_core_if->hwcfg2.b.dev_token_q_depth > 14) {
+ addr = &_core_if->dev_if->dev_global_regs->dtknqr3_dthrctl;
+ DWC_PRINT("DTKNQR3 @0x%08X : 0x%08X\n",
+ (uint32_t)addr, dwc_read_reg32(addr));
+ }
+
+ if (_core_if->hwcfg2.b.dev_token_q_depth > 22) {
+ addr = &_core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk;
+ DWC_PRINT("DTKNQR4 @0x%08X : 0x%08X\n", (uint32_t) addr,
+ dwc_read_reg32(addr));
+ }
+ for (i = 0; i <= _core_if->dev_if->num_in_eps; i++) {
+ DWC_PRINT("Device IN EP %d Registers\n", i);
+ addr=&_core_if->dev_if->in_ep_regs[i]->diepctl;
+ DWC_PRINT("DIEPCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->dev_if->in_ep_regs[i]->diepint;
+ DWC_PRINT("DIEPINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->dev_if->in_ep_regs[i]->dieptsiz;
+ DWC_PRINT("DIETSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->dev_if->in_ep_regs[i]->diepdma;
+ DWC_PRINT("DIEPDMA @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+
+addr = &_core_if->dev_if->in_ep_regs[i]->dtxfsts;
+ DWC_PRINT("DTXFSTS @0x%08X : 0x%08X\n", (uint32_t) addr,
+ dwc_read_reg32(addr));
+ }
+ for (i = 0; i <= _core_if->dev_if->num_out_eps; i++) {
+ DWC_PRINT("Device OUT EP %d Registers\n", i);
+ addr=&_core_if->dev_if->out_ep_regs[i]->doepctl;
+ DWC_PRINT("DOEPCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->dev_if->out_ep_regs[i]->doepfn;
+ DWC_PRINT("DOEPFN @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->dev_if->out_ep_regs[i]->doepint;
+ DWC_PRINT("DOEPINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->dev_if->out_ep_regs[i]->doeptsiz;
+ DWC_PRINT("DOETSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->dev_if->out_ep_regs[i]->doepdma;
+ DWC_PRINT("DOEPDMA @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ }
+ return;
+}
+
+/**
+ * This function reads the host registers and prints them
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+void dwc_otg_dump_host_registers(dwc_otg_core_if_t *_core_if)
+{
+ int i;
+ volatile uint32_t *addr;
+
+ DWC_PRINT("Host Global Registers\n");
+ addr=&_core_if->host_if->host_global_regs->hcfg;
+ DWC_PRINT("HCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->host_if->host_global_regs->hfir;
+ DWC_PRINT("HFIR @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->host_if->host_global_regs->hfnum;
+ DWC_PRINT("HFNUM @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->host_if->host_global_regs->hptxsts;
+ DWC_PRINT("HPTXSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->host_if->host_global_regs->haint;
+ DWC_PRINT("HAINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->host_if->host_global_regs->haintmsk;
+ DWC_PRINT("HAINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=_core_if->host_if->hprt0;
+ DWC_PRINT("HPRT0 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+
+ for (i=0; i<_core_if->core_params->host_channels; i++) {
+ DWC_PRINT("Host Channel %d Specific Registers\n", i);
+ addr=&_core_if->host_if->hc_regs[i]->hcchar;
+ DWC_PRINT("HCCHAR @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->host_if->hc_regs[i]->hcsplt;
+ DWC_PRINT("HCSPLT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->host_if->hc_regs[i]->hcint;
+ DWC_PRINT("HCINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->host_if->hc_regs[i]->hcintmsk;
+ DWC_PRINT("HCINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->host_if->hc_regs[i]->hctsiz;
+ DWC_PRINT("HCTSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->host_if->hc_regs[i]->hcdma;
+ DWC_PRINT("HCDMA @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+
+ }
+ return;
+}
+
+/**
+ * This function reads the core global registers and prints them
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+void dwc_otg_dump_global_registers(dwc_otg_core_if_t *_core_if)
+{
+ int i;
+ volatile uint32_t *addr;
+
+ DWC_PRINT("Core Global Registers\n");
+ addr=&_core_if->core_global_regs->gotgctl;
+ DWC_PRINT("GOTGCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->gotgint;
+ DWC_PRINT("GOTGINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->gahbcfg;
+ DWC_PRINT("GAHBCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->gusbcfg;
+ DWC_PRINT("GUSBCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->grstctl;
+ DWC_PRINT("GRSTCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->gintsts;
+ DWC_PRINT("GINTSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->gintmsk;
+ DWC_PRINT("GINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->grxstsr;
+ DWC_PRINT("GRXSTSR @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ //addr=&_core_if->core_global_regs->grxstsp;
+ //DWC_PRINT("GRXSTSP @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->grxfsiz;
+ DWC_PRINT("GRXFSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->gnptxfsiz;
+ DWC_PRINT("GNPTXFSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->gnptxsts;
+ DWC_PRINT("GNPTXSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->gi2cctl;
+ DWC_PRINT("GI2CCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->gpvndctl;
+ DWC_PRINT("GPVNDCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->ggpio;
+ DWC_PRINT("GGPIO @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->guid;
+ DWC_PRINT("GUID @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->gsnpsid;
+ DWC_PRINT("GSNPSID @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->ghwcfg1;
+ DWC_PRINT("GHWCFG1 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->ghwcfg2;
+ DWC_PRINT("GHWCFG2 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->ghwcfg3;
+ DWC_PRINT("GHWCFG3 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->ghwcfg4;
+ DWC_PRINT("GHWCFG4 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+ addr=&_core_if->core_global_regs->hptxfsiz;
+ DWC_PRINT("HPTXFSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr));
+
+ for (i=0; i<_core_if->hwcfg4.b.num_dev_perio_in_ep; i++) {
+ addr=&_core_if->core_global_regs->dptxfsiz_dieptxf[i];
+ DWC_PRINT("DPTXFSIZ[%d] @0x%08X : 0x%08X\n",i,(uint32_t)addr,dwc_read_reg32(addr));
+ }
+
+}
+#endif
+
+/**
+ * Flush a Tx FIFO.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _num Tx FIFO to flush.
+ */
+extern void dwc_otg_flush_tx_fifo( dwc_otg_core_if_t *_core_if,
+ const int _num )
+{
+ dwc_otg_core_global_regs_t *global_regs = _core_if->core_global_regs;
+ volatile grstctl_t greset = { .d32 = 0};
+ int count = 0;
+
+ DWC_DEBUGPL((DBG_CIL|DBG_PCDV), "Flush Tx FIFO %d\n", _num);
+
+ greset.b.txfflsh = 1;
+ greset.b.txfnum = _num;
+ dwc_write_reg32( &global_regs->grstctl, greset.d32 );
+
+ do {
+ greset.d32 = dwc_read_reg32( &global_regs->grstctl);
+ if (++count > 10000){
+ DWC_WARN("%s() HANG! GRSTCTL=%0x GNPTXSTS=0x%08x\n",
+ __func__, greset.d32,
+ dwc_read_reg32( &global_regs->gnptxsts));
+ break;
+ }
+
+ udelay(1);
+ } while (greset.b.txfflsh == 1);
+ /* Wait for 3 PHY Clocks*/
+ UDELAY(1);
+}
+
+/**
+ * Flush Rx FIFO.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+extern void dwc_otg_flush_rx_fifo( dwc_otg_core_if_t *_core_if )
+{
+ dwc_otg_core_global_regs_t *global_regs = _core_if->core_global_regs;
+ volatile grstctl_t greset = { .d32 = 0};
+ int count = 0;
+
+ DWC_DEBUGPL((DBG_CIL|DBG_PCDV), "%s\n", __func__);
+ /*
+ *
+ */
+ greset.b.rxfflsh = 1;
+ dwc_write_reg32( &global_regs->grstctl, greset.d32 );
+
+ do {
+ greset.d32 = dwc_read_reg32( &global_regs->grstctl);
+ if (++count > 10000){
+ DWC_WARN("%s() HANG! GRSTCTL=%0x\n", __func__,
+ greset.d32);
+ break;
+ }
+ } while (greset.b.rxfflsh == 1);
+ /* Wait for 3 PHY Clocks*/
+ UDELAY(1);
+}
+
+/**
+ * Do core a soft reset of the core. Be careful with this because it
+ * resets all the internal state machines of the core.
+ */
+
+void dwc_otg_core_reset(dwc_otg_core_if_t *_core_if)
+{
+ dwc_otg_core_global_regs_t *global_regs = _core_if->core_global_regs;
+ volatile grstctl_t greset = { .d32 = 0};
+ int count = 0;
+
+ DWC_DEBUGPL(DBG_CILV, "%s\n", __func__);
+ /* Wait for AHB master IDLE state. */
+ do {
+ UDELAY(10);
+ greset.d32 = dwc_read_reg32( &global_regs->grstctl);
+ if (++count > 100000){
+ DWC_WARN("%s() HANG! AHB Idle GRSTCTL=%0x %x\n", __func__,
+ greset.d32, greset.b.ahbidle);
+ return;
+ }
+ } while (greset.b.ahbidle == 0);
+
+// winder add.
+#if 1
+ /* Note: Actually, I don't exactly why we need to put delay here. */
+ MDELAY(100);
+#endif
+ /* Core Soft Reset */
+ count = 0;
+ greset.b.csftrst = 1;
+ dwc_write_reg32( &global_regs->grstctl, greset.d32 );
+// winder add.
+#if 1
+ /* Note: Actually, I don't exactly why we need to put delay here. */
+ MDELAY(100);
+#endif
+ do {
+ greset.d32 = dwc_read_reg32( &global_regs->grstctl);
+ if (++count > 10000){
+ DWC_WARN("%s() HANG! Soft Reset GRSTCTL=%0x\n", __func__,
+ greset.d32);
+ break;
+ }
+ udelay(1);
+ } while (greset.b.csftrst == 1);
+ /* Wait for 3 PHY Clocks*/
+ //DWC_PRINT("100ms\n");
+ MDELAY(100);
+}
+
+
+
+/**
+ * Register HCD callbacks. The callbacks are used to start and stop
+ * the HCD for interrupt processing.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _cb the HCD callback structure.
+ * @param _p pointer to be passed to callback function (usb_hcd*).
+ */
+extern void dwc_otg_cil_register_hcd_callbacks( dwc_otg_core_if_t *_core_if,
+ dwc_otg_cil_callbacks_t *_cb,
+ void *_p)
+{
+ _core_if->hcd_cb = _cb;
+ _cb->p = _p;
+}
+
+/**
+ * Register PCD callbacks. The callbacks are used to start and stop
+ * the PCD for interrupt processing.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ * @param _cb the PCD callback structure.
+ * @param _p pointer to be passed to callback function (pcd*).
+ */
+extern void dwc_otg_cil_register_pcd_callbacks( dwc_otg_core_if_t *_core_if,
+ dwc_otg_cil_callbacks_t *_cb,
+ void *_p)
+{
+ _core_if->pcd_cb = _cb;
+ _cb->p = _p;
+}
+
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_cil.h
@@ -0,0 +1,911 @@
+/* ==========================================================================
+ * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/drivers/dwc_otg_cil.h $
+ * $Revision: 1.1.1.1 $
+ * $Date: 2009-04-17 06:15:34 $
+ * $Change: 631780 $
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+
+#if !defined(__DWC_CIL_H__)
+#define __DWC_CIL_H__
+
+#include "dwc_otg_plat.h"
+
+#include "dwc_otg_regs.h"
+#ifdef DEBUG
+#include "linux/timer.h"
+#endif
+
+/* the OTG capabilities. */
+#define DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE 0
+#define DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE 1
+#define DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE 2
+/* the maximum speed of operation in host and device mode. */
+#define DWC_SPEED_PARAM_HIGH 0
+#define DWC_SPEED_PARAM_FULL 1
+/* the PHY clock rate in low power mode when connected to a
+ * Low Speed device in host mode. */
+#define DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ 0
+#define DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ 1
+/* the type of PHY interface to use. */
+#define DWC_PHY_TYPE_PARAM_FS 0
+#define DWC_PHY_TYPE_PARAM_UTMI 1
+#define DWC_PHY_TYPE_PARAM_ULPI 2
+/* whether to use the internal or external supply to
+ * drive the vbus with a ULPI phy. */
+#define DWC_PHY_ULPI_INTERNAL_VBUS 0
+#define DWC_PHY_ULPI_EXTERNAL_VBUS 1
+/* EP type. */
+
+/**
+ * @file
+ * This file contains the interface to the Core Interface Layer.
+ */
+
+/**
+ * The <code>dwc_ep</code> structure represents the state of a single
+ * endpoint when acting in device mode. It contains the data items
+ * needed for an endpoint to be activated and transfer packets.
+ */
+typedef struct dwc_ep {
+ /** EP number used for register address lookup */
+ uint8_t num;
+ /** EP direction 0 = OUT */
+ unsigned is_in : 1;
+ /** EP active. */
+ unsigned active : 1;
+
+ /** Periodic Tx FIFO # for IN EPs For INTR EP set to 0 to use non-periodic Tx FIFO
+ If dedicated Tx FIFOs are enabled for all IN Eps - Tx FIFO # FOR IN EPs*/
+ unsigned tx_fifo_num : 4;
+ /** EP type: 0 - Control, 1 - ISOC, 2 - BULK, 3 - INTR */
+ unsigned type : 2;
+#define DWC_OTG_EP_TYPE_CONTROL 0
+#define DWC_OTG_EP_TYPE_ISOC 1
+#define DWC_OTG_EP_TYPE_BULK 2
+#define DWC_OTG_EP_TYPE_INTR 3
+
+ /** DATA start PID for INTR and BULK EP */
+ unsigned data_pid_start : 1;
+ /** Frame (even/odd) for ISOC EP */
+ unsigned even_odd_frame : 1;
+ /** Max Packet bytes */
+ unsigned maxpacket : 11;
+
+ /** @name Transfer state */
+ /** @{ */
+
+ /**
+ * Pointer to the beginning of the transfer buffer -- do not modify
+ * during transfer.
+ */
+
+ uint32_t dma_addr;
+
+ uint8_t *start_xfer_buff;
+ /** pointer to the transfer buffer */
+ uint8_t *xfer_buff;
+ /** Number of bytes to transfer */
+ unsigned xfer_len : 19;
+ /** Number of bytes transferred. */
+ unsigned xfer_count : 19;
+ /** Sent ZLP */
+ unsigned sent_zlp : 1;
+ /** Total len for control transfer */
+ unsigned total_len : 19;
+
+ /** stall clear flag */
+ unsigned stall_clear_flag : 1;
+
+ /** @} */
+} dwc_ep_t;
+
+/*
+ * Reasons for halting a host channel.
+ */
+typedef enum dwc_otg_halt_status {
+ DWC_OTG_HC_XFER_NO_HALT_STATUS,
+ DWC_OTG_HC_XFER_COMPLETE,
+ DWC_OTG_HC_XFER_URB_COMPLETE,
+ DWC_OTG_HC_XFER_ACK,
+ DWC_OTG_HC_XFER_NAK,
+ DWC_OTG_HC_XFER_NYET,
+ DWC_OTG_HC_XFER_STALL,
+ DWC_OTG_HC_XFER_XACT_ERR,
+ DWC_OTG_HC_XFER_FRAME_OVERRUN,
+ DWC_OTG_HC_XFER_BABBLE_ERR,
+ DWC_OTG_HC_XFER_DATA_TOGGLE_ERR,
+ DWC_OTG_HC_XFER_AHB_ERR,
+ DWC_OTG_HC_XFER_PERIODIC_INCOMPLETE,
+ DWC_OTG_HC_XFER_URB_DEQUEUE
+} dwc_otg_halt_status_e;
+
+/**
+ * Host channel descriptor. This structure represents the state of a single
+ * host channel when acting in host mode. It contains the data items needed to
+ * transfer packets to an endpoint via a host channel.
+ */
+typedef struct dwc_hc {
+ /** Host channel number used for register address lookup */
+ uint8_t hc_num;
+
+ /** Device to access */
+ unsigned dev_addr : 7;
+
+ /** EP to access */
+ unsigned ep_num : 4;
+
+ /** EP direction. 0: OUT, 1: IN */
+ unsigned ep_is_in : 1;
+
+ /**
+ * EP speed.
+ * One of the following values:
+ * - DWC_OTG_EP_SPEED_LOW
+ * - DWC_OTG_EP_SPEED_FULL
+ * - DWC_OTG_EP_SPEED_HIGH
+ */
+ unsigned speed : 2;
+#define DWC_OTG_EP_SPEED_LOW 0
+#define DWC_OTG_EP_SPEED_FULL 1
+#define DWC_OTG_EP_SPEED_HIGH 2
+
+ /**
+ * Endpoint type.
+ * One of the following values:
+ * - DWC_OTG_EP_TYPE_CONTROL: 0
+ * - DWC_OTG_EP_TYPE_ISOC: 1
+ * - DWC_OTG_EP_TYPE_BULK: 2
+ * - DWC_OTG_EP_TYPE_INTR: 3
+ */
+ unsigned ep_type : 2;
+
+ /** Max packet size in bytes */
+ unsigned max_packet : 11;
+
+ /**
+ * PID for initial transaction.
+ * 0: DATA0,<br>
+ * 1: DATA2,<br>
+ * 2: DATA1,<br>
+ * 3: MDATA (non-Control EP),
+ * SETUP (Control EP)
+ */
+ unsigned data_pid_start : 2;
+#define DWC_OTG_HC_PID_DATA0 0
+#define DWC_OTG_HC_PID_DATA2 1
+#define DWC_OTG_HC_PID_DATA1 2
+#define DWC_OTG_HC_PID_MDATA 3
+#define DWC_OTG_HC_PID_SETUP 3
+
+ /** Number of periodic transactions per (micro)frame */
+ unsigned multi_count: 2;
+
+ /** @name Transfer State */
+ /** @{ */
+
+ /** Pointer to the current transfer buffer position. */
+ uint8_t *xfer_buff;
+ /** Total number of bytes to transfer. */
+ uint32_t xfer_len;
+ /** Number of bytes transferred so far. */
+ uint32_t xfer_count;
+ /** Packet count at start of transfer.*/
+ uint16_t start_pkt_count;
+
+ /**
+ * Flag to indicate whether the transfer has been started. Set to 1 if
+ * it has been started, 0 otherwise.
+ */
+ uint8_t xfer_started;
+
+ /**
+ * Set to 1 to indicate that a PING request should be issued on this
+ * channel. If 0, process normally.
+ */
+ uint8_t do_ping;
+
+ /**
+ * Set to 1 to indicate that the error count for this transaction is
+ * non-zero. Set to 0 if the error count is 0.
+ */
+ uint8_t error_state;
+
+ /**
+ * Set to 1 to indicate that this channel should be halted the next
+ * time a request is queued for the channel. This is necessary in
+ * slave mode if no request queue space is available when an attempt
+ * is made to halt the channel.
+ */
+ uint8_t halt_on_queue;
+
+ /**
+ * Set to 1 if the host channel has been halted, but the core is not
+ * finished flushing queued requests. Otherwise 0.
+ */
+ uint8_t halt_pending;
+
+ /**
+ * Reason for halting the host channel.
+ */
+ dwc_otg_halt_status_e halt_status;
+
+ /*
+ * Split settings for the host channel
+ */
+ uint8_t do_split; /**< Enable split for the channel */
+ uint8_t complete_split; /**< Enable complete split */
+ uint8_t hub_addr; /**< Address of high speed hub */
+
+ uint8_t port_addr; /**< Port of the low/full speed device */
+ /** Split transaction position
+ * One of the following values:
+ * - DWC_HCSPLIT_XACTPOS_MID
+ * - DWC_HCSPLIT_XACTPOS_BEGIN
+ * - DWC_HCSPLIT_XACTPOS_END
+ * - DWC_HCSPLIT_XACTPOS_ALL */
+ uint8_t xact_pos;
+
+ /** Set when the host channel does a short read. */
+ uint8_t short_read;
+
+ /**
+ * Number of requests issued for this channel since it was assigned to
+ * the current transfer (not counting PINGs).
+ */
+ uint8_t requests;
+
+ /**
+ * Queue Head for the transfer being processed by this channel.
+ */
+ struct dwc_otg_qh *qh;
+
+ /** @} */
+
+ /** Entry in list of host channels. */
+ struct list_head hc_list_entry;
+} dwc_hc_t;
+
+/**
+ * The following parameters may be specified when starting the module. These
+ * parameters define how the DWC_otg controller should be configured.
+ * Parameter values are passed to the CIL initialization function
+ * dwc_otg_cil_init.
+ */
+
+typedef struct dwc_otg_core_params
+{
+ int32_t opt;
+//#define dwc_param_opt_default 1
+ /**
+ * Specifies the OTG capabilities. The driver will automatically
+ * detect the value for this parameter if none is specified.
+ * 0 - HNP and SRP capable (default)
+ * 1 - SRP Only capable
+ * 2 - No HNP/SRP capable
+ */
+ int32_t otg_cap;
+#define DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE 0
+#define DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE 1
+#define DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE 2
+//#define dwc_param_otg_cap_default DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE
+ /**
+ * Specifies whether to use slave or DMA mode for accessing the data
+ * FIFOs. The driver will automatically detect the value for this
+ * parameter if none is specified.
+ * 0 - Slave
+ * 1 - DMA (default, if available)
+ */
+ int32_t dma_enable;
+//#define dwc_param_dma_enable_default 1
+ /** The DMA Burst size (applicable only for External DMA
+ * Mode). 1, 4, 8 16, 32, 64, 128, 256 (default 32)
+ */
+ int32_t dma_burst_size; /* Translate this to GAHBCFG values */
+//#define dwc_param_dma_burst_size_default 32
+ /**
+ * Specifies the maximum speed of operation in host and device mode.
+ * The actual speed depends on the speed of the attached device and
+ * the value of phy_type. The actual speed depends on the speed of the
+ * attached device.
+ * 0 - High Speed (default)
+ * 1 - Full Speed
+ */
+ int32_t speed;
+//#define dwc_param_speed_default 0
+#define DWC_SPEED_PARAM_HIGH 0
+#define DWC_SPEED_PARAM_FULL 1
+
+ /** Specifies whether low power mode is supported when attached
+ * to a Full Speed or Low Speed device in host mode.
+ * 0 - Don't support low power mode (default)
+ * 1 - Support low power mode
+ */
+ int32_t host_support_fs_ls_low_power;
+//#define dwc_param_host_support_fs_ls_low_power_default 0
+ /** Specifies the PHY clock rate in low power mode when connected to a
+ * Low Speed device in host mode. This parameter is applicable only if
+ * HOST_SUPPORT_FS_LS_LOW_POWER is enabled. If PHY_TYPE is set to FS
+ * then defaults to 6 MHZ otherwise 48 MHZ.
+ *
+ * 0 - 48 MHz
+ * 1 - 6 MHz
+ */
+ int32_t host_ls_low_power_phy_clk;
+//#define dwc_param_host_ls_low_power_phy_clk_default 0
+#define DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ 0
+#define DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ 1
+ /**
+ * 0 - Use cC FIFO size parameters
+ * 1 - Allow dynamic FIFO sizing (default)
+ */
+ int32_t enable_dynamic_fifo;
+//#define dwc_param_enable_dynamic_fifo_default 1
+ /** Total number of 4-byte words in the data FIFO memory. This
+ * memory includes the Rx FIFO, non-periodic Tx FIFO, and periodic
+ * Tx FIFOs.
+ * 32 to 32768 (default 8192)
+ * Note: The total FIFO memory depth in the FPGA configuration is 8192.
+ */
+ int32_t data_fifo_size;
+//#define dwc_param_data_fifo_size_default 8192
+ /** Number of 4-byte words in the Rx FIFO in device mode when dynamic
+ * FIFO sizing is enabled.
+ * 16 to 32768 (default 1064)
+ */
+ int32_t dev_rx_fifo_size;
+//#define dwc_param_dev_rx_fifo_size_default 1064
+ /** Number of 4-byte words in the non-periodic Tx FIFO in device mode
+ * when dynamic FIFO sizing is enabled.
+ * 16 to 32768 (default 1024)
+ */
+ int32_t dev_nperio_tx_fifo_size;
+//#define dwc_param_dev_nperio_tx_fifo_size_default 1024
+ /** Number of 4-byte words in each of the periodic Tx FIFOs in device
+ * mode when dynamic FIFO sizing is enabled.
+ * 4 to 768 (default 256)
+ */
+ uint32_t dev_perio_tx_fifo_size[MAX_PERIO_FIFOS];
+//#define dwc_param_dev_perio_tx_fifo_size_default 256
+ /** Number of 4-byte words in the Rx FIFO in host mode when dynamic
+ * FIFO sizing is enabled.
+ * 16 to 32768 (default 1024)
+ */
+ int32_t host_rx_fifo_size;
+//#define dwc_param_host_rx_fifo_size_default 1024
+ /** Number of 4-byte words in the non-periodic Tx FIFO in host mode
+ * when Dynamic FIFO sizing is enabled in the core.
+ * 16 to 32768 (default 1024)
+ */
+ int32_t host_nperio_tx_fifo_size;
+//#define dwc_param_host_nperio_tx_fifo_size_default 1024
+ /** Number of 4-byte words in the host periodic Tx FIFO when dynamic
+ * FIFO sizing is enabled.
+ * 16 to 32768 (default 1024)
+ */
+ int32_t host_perio_tx_fifo_size;
+//#define dwc_param_host_perio_tx_fifo_size_default 1024
+ /** The maximum transfer size supported in bytes.
+ * 2047 to 65,535 (default 65,535)
+ */
+ int32_t max_transfer_size;
+//#define dwc_param_max_transfer_size_default 65535
+ /** The maximum number of packets in a transfer.
+ * 15 to 511 (default 511)
+ */
+ int32_t max_packet_count;
+//#define dwc_param_max_packet_count_default 511
+ /** The number of host channel registers to use.
+ * 1 to 16 (default 12)
+ * Note: The FPGA configuration supports a maximum of 12 host channels.
+ */
+ int32_t host_channels;
+//#define dwc_param_host_channels_default 12
+ /** The number of endpoints in addition to EP0 available for device
+ * mode operations.
+ * 1 to 15 (default 6 IN and OUT)
+ * Note: The FPGA configuration supports a maximum of 6 IN and OUT
+ * endpoints in addition to EP0.
+ */
+ int32_t dev_endpoints;
+//#define dwc_param_dev_endpoints_default 6
+ /**
+ * Specifies the type of PHY interface to use. By default, the driver
+ * will automatically detect the phy_type.
+ *
+ * 0 - Full Speed PHY
+ * 1 - UTMI+ (default)
+ * 2 - ULPI
+ */
+ int32_t phy_type;
+#define DWC_PHY_TYPE_PARAM_FS 0
+#define DWC_PHY_TYPE_PARAM_UTMI 1
+#define DWC_PHY_TYPE_PARAM_ULPI 2
+//#define dwc_param_phy_type_default DWC_PHY_TYPE_PARAM_UTMI
+ /**
+ * Specifies the UTMI+ Data Width. This parameter is
+ * applicable for a PHY_TYPE of UTMI+ or ULPI. (For a ULPI
+ * PHY_TYPE, this parameter indicates the data width between
+ * the MAC and the ULPI Wrapper.) Also, this parameter is
+ * applicable only if the OTG_HSPHY_WIDTH cC parameter was set
+ * to "8 and 16 bits", meaning that the core has been
+ * configured to work at either data path width.
+ *
+ * 8 or 16 bits (default 16)
+ */
+ int32_t phy_utmi_width;
+//#define dwc_param_phy_utmi_width_default 16
+ /**
+ * Specifies whether the ULPI operates at double or single
+ * data rate. This parameter is only applicable if PHY_TYPE is
+ * ULPI.
+ *
+ * 0 - single data rate ULPI interface with 8 bit wide data
+ * bus (default)
+ * 1 - double data rate ULPI interface with 4 bit wide data
+ * bus
+ */
+ int32_t phy_ulpi_ddr;
+//#define dwc_param_phy_ulpi_ddr_default 0
+ /**
+ * Specifies whether to use the internal or external supply to
+ * drive the vbus with a ULPI phy.
+ */
+ int32_t phy_ulpi_ext_vbus;
+#define DWC_PHY_ULPI_INTERNAL_VBUS 0
+#define DWC_PHY_ULPI_EXTERNAL_VBUS 1
+//#define dwc_param_phy_ulpi_ext_vbus_default DWC_PHY_ULPI_INTERNAL_VBUS
+ /**
+ * Specifies whether to use the I2Cinterface for full speed PHY. This
+ * parameter is only applicable if PHY_TYPE is FS.
+ * 0 - No (default)
+ * 1 - Yes
+ */
+ int32_t i2c_enable;
+//#define dwc_param_i2c_enable_default 0
+
+ int32_t ulpi_fs_ls;
+//#define dwc_param_ulpi_fs_ls_default 0
+
+ int32_t ts_dline;
+//#define dwc_param_ts_dline_default 0
+
+ /**
+ * Specifies whether dedicated transmit FIFOs are
+ * enabled for non periodic IN endpoints in device mode
+ * 0 - No
+ * 1 - Yes
+ */
+ int32_t en_multiple_tx_fifo;
+#define dwc_param_en_multiple_tx_fifo_default 1
+
+ /** Number of 4-byte words in each of the Tx FIFOs in device
+ * mode when dynamic FIFO sizing is enabled.
+ * 4 to 768 (default 256)
+ */
+ uint32_t dev_tx_fifo_size[MAX_TX_FIFOS];
+#define dwc_param_dev_tx_fifo_size_default 256
+
+ /** Thresholding enable flag-
+ * bit 0 - enable non-ISO Tx thresholding
+ * bit 1 - enable ISO Tx thresholding
+ * bit 2 - enable Rx thresholding
+ */
+ uint32_t thr_ctl;
+#define dwc_param_thr_ctl_default 0
+
+ /** Thresholding length for Tx
+ * FIFOs in 32 bit DWORDs
+ */
+ uint32_t tx_thr_length;
+#define dwc_param_tx_thr_length_default 64
+
+ /** Thresholding length for Rx
+ * FIFOs in 32 bit DWORDs
+ */
+ uint32_t rx_thr_length;
+#define dwc_param_rx_thr_length_default 64
+} dwc_otg_core_params_t;
+
+#ifdef DEBUG
+struct dwc_otg_core_if;
+typedef struct hc_xfer_info
+{
+ struct dwc_otg_core_if *core_if;
+ dwc_hc_t *hc;
+} hc_xfer_info_t;
+#endif
+
+/**
+ * The <code>dwc_otg_core_if</code> structure contains information needed to manage
+ * the DWC_otg controller acting in either host or device mode. It
+ * represents the programming view of the controller as a whole.
+ */
+typedef struct dwc_otg_core_if
+{
+ /** Parameters that define how the core should be configured.*/
+ dwc_otg_core_params_t *core_params;
+
+ /** Core Global registers starting at offset 000h. */
+ dwc_otg_core_global_regs_t *core_global_regs;
+
+ /** Device-specific information */
+ dwc_otg_dev_if_t *dev_if;
+ /** Host-specific information */
+ dwc_otg_host_if_t *host_if;
+
+ /*
+ * Set to 1 if the core PHY interface bits in USBCFG have been
+ * initialized.
+ */
+ uint8_t phy_init_done;
+
+ /*
+ * SRP Success flag, set by srp success interrupt in FS I2C mode
+ */
+ uint8_t srp_success;
+ uint8_t srp_timer_started;
+
+ /* Common configuration information */
+ /** Power and Clock Gating Control Register */
+ volatile uint32_t *pcgcctl;
+#define DWC_OTG_PCGCCTL_OFFSET 0xE00
+
+ /** Push/pop addresses for endpoints or host channels.*/
+ uint32_t *data_fifo[MAX_EPS_CHANNELS];
+#define DWC_OTG_DATA_FIFO_OFFSET 0x1000
+#define DWC_OTG_DATA_FIFO_SIZE 0x1000
+
+ /** Total RAM for FIFOs (Bytes) */
+ uint16_t total_fifo_size;
+ /** Size of Rx FIFO (Bytes) */
+ uint16_t rx_fifo_size;
+ /** Size of Non-periodic Tx FIFO (Bytes) */
+ uint16_t nperio_tx_fifo_size;
+
+ /** 1 if DMA is enabled, 0 otherwise. */
+ uint8_t dma_enable;
+
+ /** 1 if dedicated Tx FIFOs are enabled, 0 otherwise. */
+ uint8_t en_multiple_tx_fifo;
+
+ /** Set to 1 if multiple packets of a high-bandwidth transfer is in
+ * process of being queued */
+ uint8_t queuing_high_bandwidth;
+
+ /** Hardware Configuration -- stored here for convenience.*/
+ hwcfg1_data_t hwcfg1;
+ hwcfg2_data_t hwcfg2;
+ hwcfg3_data_t hwcfg3;
+ hwcfg4_data_t hwcfg4;
+
+ /** The operational State, during transations
+ * (a_host>>a_peripherial and b_device=>b_host) this may not
+ * match the core but allows the software to determine
+ * transitions.
+ */
+ uint8_t op_state;
+
+ /**
+ * Set to 1 if the HCD needs to be restarted on a session request
+ * interrupt. This is required if no connector ID status change has
+ * occurred since the HCD was last disconnected.
+ */
+ uint8_t restart_hcd_on_session_req;
+
+ /** HCD callbacks */
+ /** A-Device is a_host */
+#define A_HOST (1)
+ /** A-Device is a_suspend */
+#define A_SUSPEND (2)
+ /** A-Device is a_peripherial */
+#define A_PERIPHERAL (3)
+ /** B-Device is operating as a Peripheral. */
+#define B_PERIPHERAL (4)
+ /** B-Device is operating as a Host. */
+#define B_HOST (5)
+
+ /** HCD callbacks */
+ struct dwc_otg_cil_callbacks *hcd_cb;
+ /** PCD callbacks */
+ struct dwc_otg_cil_callbacks *pcd_cb;
+
+ /** Device mode Periodic Tx FIFO Mask */
+ uint32_t p_tx_msk;
+ /** Device mode Periodic Tx FIFO Mask */
+ uint32_t tx_msk;
+
+#ifdef DEBUG
+ uint32_t start_hcchar_val[MAX_EPS_CHANNELS];
+
+ hc_xfer_info_t hc_xfer_info[MAX_EPS_CHANNELS];
+ struct timer_list hc_xfer_timer[MAX_EPS_CHANNELS];
+
+#if 1 // winder
+ uint32_t hfnum_7_samples;
+ uint32_t hfnum_7_frrem_accum;
+ uint32_t hfnum_0_samples;
+ uint32_t hfnum_0_frrem_accum;
+ uint32_t hfnum_other_samples;
+ uint32_t hfnum_other_frrem_accum;
+#else
+ uint32_t hfnum_7_samples;
+ uint64_t hfnum_7_frrem_accum;
+ uint32_t hfnum_0_samples;
+ uint64_t hfnum_0_frrem_accum;
+ uint32_t hfnum_other_samples;
+ uint64_t hfnum_other_frrem_accum;
+#endif
+ resource_size_t phys_addr; /* Added to support PLB DMA : phys-virt mapping */
+#endif
+
+} dwc_otg_core_if_t;
+
+/*
+ * The following functions support initialization of the CIL driver component
+ * and the DWC_otg controller.
+ */
+extern dwc_otg_core_if_t *dwc_otg_cil_init(const uint32_t *_reg_base_addr,
+ dwc_otg_core_params_t *_core_params);
+extern void dwc_otg_cil_remove(dwc_otg_core_if_t *_core_if);
+extern void dwc_otg_core_init(dwc_otg_core_if_t *_core_if);
+extern void dwc_otg_core_host_init(dwc_otg_core_if_t *_core_if);
+extern void dwc_otg_core_dev_init(dwc_otg_core_if_t *_core_if);
+extern void dwc_otg_enable_global_interrupts( dwc_otg_core_if_t *_core_if );
+extern void dwc_otg_disable_global_interrupts( dwc_otg_core_if_t *_core_if );
+
+/** @name Device CIL Functions
+ * The following functions support managing the DWC_otg controller in device
+ * mode.
+ */
+/**@{*/
+extern void dwc_otg_wakeup(dwc_otg_core_if_t *_core_if);
+extern void dwc_otg_read_setup_packet (dwc_otg_core_if_t *_core_if, uint32_t *_dest);
+extern uint32_t dwc_otg_get_frame_number(dwc_otg_core_if_t *_core_if);
+extern void dwc_otg_ep0_activate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep);
+extern void dwc_otg_ep_activate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep);
+extern void dwc_otg_ep_deactivate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep);
+extern void dwc_otg_ep_start_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep);
+extern void dwc_otg_ep0_start_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep);
+extern void dwc_otg_ep0_continue_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep);
+extern void dwc_otg_ep_write_packet(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep, int _dma);
+extern void dwc_otg_ep_set_stall(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep);
+extern void dwc_otg_ep_clear_stall(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep);
+extern void dwc_otg_enable_device_interrupts(dwc_otg_core_if_t *_core_if);
+extern void dwc_otg_dump_dev_registers(dwc_otg_core_if_t *_core_if);
+/**@}*/
+
+/** @name Host CIL Functions
+ * The following functions support managing the DWC_otg controller in host
+ * mode.
+ */
+/**@{*/
+extern void dwc_otg_hc_init(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc);
+extern void dwc_otg_hc_halt(dwc_otg_core_if_t *_core_if,
+ dwc_hc_t *_hc,
+ dwc_otg_halt_status_e _halt_status);
+extern void dwc_otg_hc_cleanup(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc);
+extern void dwc_otg_hc_start_transfer(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc);
+extern int dwc_otg_hc_continue_transfer(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc);
+extern void dwc_otg_hc_do_ping(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc);
+extern void dwc_otg_hc_write_packet(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc);
+extern void dwc_otg_enable_host_interrupts(dwc_otg_core_if_t *_core_if);
+extern void dwc_otg_disable_host_interrupts(dwc_otg_core_if_t *_core_if);
+
+/**
+ * This function Reads HPRT0 in preparation to modify. It keeps the
+ * WC bits 0 so that if they are read as 1, they won't clear when you
+ * write it back
+ */
+static inline uint32_t dwc_otg_read_hprt0(dwc_otg_core_if_t *_core_if)
+{
+ hprt0_data_t hprt0;
+ hprt0.d32 = dwc_read_reg32(_core_if->host_if->hprt0);
+ hprt0.b.prtena = 0;
+ hprt0.b.prtconndet = 0;
+ hprt0.b.prtenchng = 0;
+ hprt0.b.prtovrcurrchng = 0;
+ return hprt0.d32;
+}
+
+extern void dwc_otg_dump_host_registers(dwc_otg_core_if_t *_core_if);
+/**@}*/
+
+/** @name Common CIL Functions
+ * The following functions support managing the DWC_otg controller in either
+ * device or host mode.
+ */
+/**@{*/
+
+extern void dwc_otg_read_packet(dwc_otg_core_if_t *core_if,
+ uint8_t *dest,
+ uint16_t bytes);
+
+extern void dwc_otg_dump_global_registers(dwc_otg_core_if_t *_core_if);
+
+extern void dwc_otg_flush_tx_fifo( dwc_otg_core_if_t *_core_if,
+ const int _num );
+extern void dwc_otg_flush_rx_fifo( dwc_otg_core_if_t *_core_if );
+extern void dwc_otg_core_reset( dwc_otg_core_if_t *_core_if );
+
+#define NP_TXFIFO_EMPTY -1
+#define MAX_NP_TXREQUEST_Q_SLOTS 8
+/**
+ * This function returns the endpoint number of the request at
+ * the top of non-periodic TX FIFO, or -1 if the request FIFO is
+ * empty.
+ */
+static inline int dwc_otg_top_nptxfifo_epnum(dwc_otg_core_if_t *_core_if) {
+ gnptxsts_data_t txstatus = {.d32 = 0};
+
+ txstatus.d32 = dwc_read_reg32(&_core_if->core_global_regs->gnptxsts);
+ return (txstatus.b.nptxqspcavail == MAX_NP_TXREQUEST_Q_SLOTS ?
+ -1 : txstatus.b.nptxqtop_chnep);
+}
+/**
+ * This function returns the Core Interrupt register.
+ */
+static inline uint32_t dwc_otg_read_core_intr(dwc_otg_core_if_t *_core_if) {
+ return (dwc_read_reg32(&_core_if->core_global_regs->gintsts) &
+ dwc_read_reg32(&_core_if->core_global_regs->gintmsk));
+}
+
+/**
+ * This function returns the OTG Interrupt register.
+ */
+static inline uint32_t dwc_otg_read_otg_intr (dwc_otg_core_if_t *_core_if) {
+ return (dwc_read_reg32 (&_core_if->core_global_regs->gotgint));
+}
+
+/**
+ * This function reads the Device All Endpoints Interrupt register and
+ * returns the IN endpoint interrupt bits.
+ */
+static inline uint32_t dwc_otg_read_dev_all_in_ep_intr(dwc_otg_core_if_t *_core_if) {
+ uint32_t v;
+ v = dwc_read_reg32(&_core_if->dev_if->dev_global_regs->daint) &
+ dwc_read_reg32(&_core_if->dev_if->dev_global_regs->daintmsk);
+ return (v & 0xffff);
+
+}
+
+/**
+ * This function reads the Device All Endpoints Interrupt register and
+ * returns the OUT endpoint interrupt bits.
+ */
+static inline uint32_t dwc_otg_read_dev_all_out_ep_intr(dwc_otg_core_if_t *_core_if) {
+ uint32_t v;
+ v = dwc_read_reg32(&_core_if->dev_if->dev_global_regs->daint) &
+ dwc_read_reg32(&_core_if->dev_if->dev_global_regs->daintmsk);
+ return ((v & 0xffff0000) >> 16);
+}
+
+/**
+ * This function returns the Device IN EP Interrupt register
+ */
+static inline uint32_t dwc_otg_read_dev_in_ep_intr(dwc_otg_core_if_t *_core_if,
+ dwc_ep_t *_ep)
+{
+ dwc_otg_dev_if_t *dev_if = _core_if->dev_if;
+ uint32_t v, msk, emp;
+ msk = dwc_read_reg32(&dev_if->dev_global_regs->diepmsk);
+ emp = dwc_read_reg32(&dev_if->dev_global_regs->dtknqr4_fifoemptymsk);
+ msk |= ((emp >> _ep->num) & 0x1) << 7;
+ v = dwc_read_reg32(&dev_if->in_ep_regs[_ep->num]->diepint) & msk;
+/*
+ dwc_otg_dev_if_t *dev_if = _core_if->dev_if;
+ uint32_t v;
+ v = dwc_read_reg32(&dev_if->in_ep_regs[_ep->num]->diepint) &
+ dwc_read_reg32(&dev_if->dev_global_regs->diepmsk);
+*/
+ return v;
+}
+/**
+ * This function returns the Device OUT EP Interrupt register
+ */
+static inline uint32_t dwc_otg_read_dev_out_ep_intr(dwc_otg_core_if_t *_core_if,
+ dwc_ep_t *_ep)
+{
+ dwc_otg_dev_if_t *dev_if = _core_if->dev_if;
+ uint32_t v;
+ v = dwc_read_reg32( &dev_if->out_ep_regs[_ep->num]->doepint) &
+ dwc_read_reg32(&dev_if->dev_global_regs->doepmsk);
+ return v;
+}
+
+/**
+ * This function returns the Host All Channel Interrupt register
+ */
+static inline uint32_t dwc_otg_read_host_all_channels_intr (dwc_otg_core_if_t *_core_if)
+{
+ return (dwc_read_reg32 (&_core_if->host_if->host_global_regs->haint));
+}
+
+static inline uint32_t dwc_otg_read_host_channel_intr (dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc)
+{
+ return (dwc_read_reg32 (&_core_if->host_if->hc_regs[_hc->hc_num]->hcint));
+}
+
+
+/**
+ * This function returns the mode of the operation, host or device.
+ *
+ * @return 0 - Device Mode, 1 - Host Mode
+ */
+static inline uint32_t dwc_otg_mode(dwc_otg_core_if_t *_core_if) {
+ return (dwc_read_reg32( &_core_if->core_global_regs->gintsts ) & 0x1);
+}
+
+static inline uint8_t dwc_otg_is_device_mode(dwc_otg_core_if_t *_core_if)
+{
+ return (dwc_otg_mode(_core_if) != DWC_HOST_MODE);
+}
+static inline uint8_t dwc_otg_is_host_mode(dwc_otg_core_if_t *_core_if)
+{
+ return (dwc_otg_mode(_core_if) == DWC_HOST_MODE);
+}
+
+extern int32_t dwc_otg_handle_common_intr( dwc_otg_core_if_t *_core_if );
+
+
+/**@}*/
+
+/**
+ * DWC_otg CIL callback structure. This structure allows the HCD and
+ * PCD to register functions used for starting and stopping the PCD
+ * and HCD for role change on for a DRD.
+ */
+typedef struct dwc_otg_cil_callbacks
+{
+ /** Start function for role change */
+ int (*start) (void *_p);
+ /** Stop Function for role change */
+ int (*stop) (void *_p);
+ /** Disconnect Function for role change */
+ int (*disconnect) (void *_p);
+ /** Resume/Remote wakeup Function */
+ int (*resume_wakeup) (void *_p);
+ /** Suspend function */
+ int (*suspend) (void *_p);
+ /** Session Start (SRP) */
+ int (*session_start) (void *_p);
+ /** Pointer passed to start() and stop() */
+ void *p;
+} dwc_otg_cil_callbacks_t;
+
+
+
+extern void dwc_otg_cil_register_pcd_callbacks( dwc_otg_core_if_t *_core_if,
+ dwc_otg_cil_callbacks_t *_cb,
+ void *_p);
+extern void dwc_otg_cil_register_hcd_callbacks( dwc_otg_core_if_t *_core_if,
+ dwc_otg_cil_callbacks_t *_cb,
+ void *_p);
+
+
+#endif
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_cil_ifx.h
@@ -0,0 +1,58 @@
+/******************************************************************************
+**
+** FILE NAME : dwc_otg_cil_ifx.h
+** PROJECT : Twinpass/Danube
+** MODULES : DWC OTG USB
+**
+** DATE : 07 Sep. 2007
+** AUTHOR : Sung Winder
+** DESCRIPTION : Default param value.
+** COPYRIGHT : Copyright (c) 2007
+** Infineon Technologies AG
+** 2F, No.2, Li-Hsin Rd., Hsinchu Science Park,
+** Hsin-chu City, 300 Taiwan.
+**
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU General Public License as published by
+** the Free Software Foundation; either version 2 of the License, or
+** (at your option) any later version.
+**
+** HISTORY
+** $Date $Author $Comment
+** 12 April 2007 Sung Winder Initiate Version
+*******************************************************************************/
+#if !defined(__DWC_OTG_CIL_IFX_H__)
+#define __DWC_OTG_CIL_IFX_H__
+
+/* ================ Default param value ================== */
+#define dwc_param_opt_default 1
+#define dwc_param_otg_cap_default DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE
+#define dwc_param_dma_enable_default 1
+#define dwc_param_dma_burst_size_default 32
+#define dwc_param_speed_default DWC_SPEED_PARAM_HIGH
+#define dwc_param_host_support_fs_ls_low_power_default 0
+#define dwc_param_host_ls_low_power_phy_clk_default DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ
+#define dwc_param_enable_dynamic_fifo_default 1
+#define dwc_param_data_fifo_size_default 2048
+#define dwc_param_dev_rx_fifo_size_default 1024
+#define dwc_param_dev_nperio_tx_fifo_size_default 1024
+#define dwc_param_dev_perio_tx_fifo_size_default 768
+#define dwc_param_host_rx_fifo_size_default 640
+#define dwc_param_host_nperio_tx_fifo_size_default 640
+#define dwc_param_host_perio_tx_fifo_size_default 768
+#define dwc_param_max_transfer_size_default 65535
+#define dwc_param_max_packet_count_default 511
+#define dwc_param_host_channels_default 16
+#define dwc_param_dev_endpoints_default 6
+#define dwc_param_phy_type_default DWC_PHY_TYPE_PARAM_UTMI
+#define dwc_param_phy_utmi_width_default 16
+#define dwc_param_phy_ulpi_ddr_default 0
+#define dwc_param_phy_ulpi_ext_vbus_default DWC_PHY_ULPI_INTERNAL_VBUS
+#define dwc_param_i2c_enable_default 0
+#define dwc_param_ulpi_fs_ls_default 0
+#define dwc_param_ts_dline_default 0
+
+/* ======================================================= */
+
+#endif // __DWC_OTG_CIL_IFX_H__
+
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_cil_intr.c
@@ -0,0 +1,708 @@
+/* ==========================================================================
+ * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/drivers/dwc_otg_cil_intr.c $
+ * $Revision: 1.1.1.1 $
+ * $Date: 2009-04-17 06:15:34 $
+ * $Change: 553126 $
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+
+/** @file
+ *
+ * The Core Interface Layer provides basic services for accessing and
+ * managing the DWC_otg hardware. These services are used by both the
+ * Host Controller Driver and the Peripheral Controller Driver.
+ *
+ * This file contains the Common Interrupt handlers.
+ */
+#include "dwc_otg_plat.h"
+#include "dwc_otg_regs.h"
+#include "dwc_otg_cil.h"
+
+#ifdef DEBUG
+inline const char *op_state_str( dwc_otg_core_if_t *_core_if )
+{
+ return (_core_if->op_state==A_HOST?"a_host":
+ (_core_if->op_state==A_SUSPEND?"a_suspend":
+ (_core_if->op_state==A_PERIPHERAL?"a_peripheral":
+ (_core_if->op_state==B_PERIPHERAL?"b_peripheral":
+ (_core_if->op_state==B_HOST?"b_host":
+ "unknown")))));
+}
+#endif
+
+/** This function will log a debug message
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+int32_t dwc_otg_handle_mode_mismatch_intr (dwc_otg_core_if_t *_core_if)
+{
+ gintsts_data_t gintsts;
+ DWC_WARN("Mode Mismatch Interrupt: currently in %s mode\n",
+ dwc_otg_mode(_core_if) ? "Host" : "Device");
+
+ /* Clear interrupt */
+ gintsts.d32 = 0;
+ gintsts.b.modemismatch = 1;
+ dwc_write_reg32 (&_core_if->core_global_regs->gintsts, gintsts.d32);
+ return 1;
+}
+
+/** Start the HCD. Helper function for using the HCD callbacks.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+static inline void hcd_start( dwc_otg_core_if_t *_core_if )
+{
+ if (_core_if->hcd_cb && _core_if->hcd_cb->start) {
+ _core_if->hcd_cb->start( _core_if->hcd_cb->p );
+ }
+}
+/** Stop the HCD. Helper function for using the HCD callbacks.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+static inline void hcd_stop( dwc_otg_core_if_t *_core_if )
+{
+ if (_core_if->hcd_cb && _core_if->hcd_cb->stop) {
+ _core_if->hcd_cb->stop( _core_if->hcd_cb->p );
+ }
+}
+/** Disconnect the HCD. Helper function for using the HCD callbacks.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+static inline void hcd_disconnect( dwc_otg_core_if_t *_core_if )
+{
+ if (_core_if->hcd_cb && _core_if->hcd_cb->disconnect) {
+ _core_if->hcd_cb->disconnect( _core_if->hcd_cb->p );
+ }
+}
+/** Inform the HCD the a New Session has begun. Helper function for
+ * using the HCD callbacks.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+static inline void hcd_session_start( dwc_otg_core_if_t *_core_if )
+{
+ if (_core_if->hcd_cb && _core_if->hcd_cb->session_start) {
+ _core_if->hcd_cb->session_start( _core_if->hcd_cb->p );
+ }
+}
+
+/** Start the PCD. Helper function for using the PCD callbacks.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+static inline void pcd_start( dwc_otg_core_if_t *_core_if )
+{
+ if (_core_if->pcd_cb && _core_if->pcd_cb->start ) {
+ _core_if->pcd_cb->start( _core_if->pcd_cb->p );
+ }
+}
+/** Stop the PCD. Helper function for using the PCD callbacks.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+static inline void pcd_stop( dwc_otg_core_if_t *_core_if )
+{
+ if (_core_if->pcd_cb && _core_if->pcd_cb->stop ) {
+ _core_if->pcd_cb->stop( _core_if->pcd_cb->p );
+ }
+}
+/** Suspend the PCD. Helper function for using the PCD callbacks.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+static inline void pcd_suspend( dwc_otg_core_if_t *_core_if )
+{
+ if (_core_if->pcd_cb && _core_if->pcd_cb->suspend ) {
+ _core_if->pcd_cb->suspend( _core_if->pcd_cb->p );
+ }
+}
+/** Resume the PCD. Helper function for using the PCD callbacks.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+static inline void pcd_resume( dwc_otg_core_if_t *_core_if )
+{
+ if (_core_if->pcd_cb && _core_if->pcd_cb->resume_wakeup ) {
+ _core_if->pcd_cb->resume_wakeup( _core_if->pcd_cb->p );
+ }
+}
+
+/**
+ * This function handles the OTG Interrupts. It reads the OTG
+ * Interrupt Register (GOTGINT) to determine what interrupt has
+ * occurred.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+int32_t dwc_otg_handle_otg_intr(dwc_otg_core_if_t *_core_if)
+{
+ dwc_otg_core_global_regs_t *global_regs =
+ _core_if->core_global_regs;
+ gotgint_data_t gotgint;
+ gotgctl_data_t gotgctl;
+ gintmsk_data_t gintmsk;
+
+ gotgint.d32 = dwc_read_reg32( &global_regs->gotgint);
+ gotgctl.d32 = dwc_read_reg32( &global_regs->gotgctl);
+ DWC_DEBUGPL(DBG_CIL, "++OTG Interrupt gotgint=%0x [%s]\n", gotgint.d32,
+ op_state_str(_core_if));
+ //DWC_DEBUGPL(DBG_CIL, "gotgctl=%08x\n", gotgctl.d32 );
+
+ if (gotgint.b.sesenddet) {
+ DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: "
+ "Session End Detected++ (%s)\n",
+ op_state_str(_core_if));
+ gotgctl.d32 = dwc_read_reg32( &global_regs->gotgctl);
+
+ if (_core_if->op_state == B_HOST) {
+ pcd_start( _core_if );
+ _core_if->op_state = B_PERIPHERAL;
+ } else {
+ /* If not B_HOST and Device HNP still set. HNP
+ * Did not succeed!*/
+ if (gotgctl.b.devhnpen) {
+ DWC_DEBUGPL(DBG_ANY, "Session End Detected\n");
+ DWC_ERROR( "Device Not Connected/Responding!\n" );
+ }
+
+ /* If Session End Detected the B-Cable has
+ * been disconnected. */
+ /* Reset PCD and Gadget driver to a
+ * clean state. */
+ pcd_stop(_core_if);
+ }
+ gotgctl.d32 = 0;
+ gotgctl.b.devhnpen = 1;
+ dwc_modify_reg32( &global_regs->gotgctl,
+ gotgctl.d32, 0);
+ }
+ if (gotgint.b.sesreqsucstschng) {
+ DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: "
+ "Session Reqeust Success Status Change++\n");
+ gotgctl.d32 = dwc_read_reg32( &global_regs->gotgctl);
+ if (gotgctl.b.sesreqscs) {
+ if ((_core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS) &&
+ (_core_if->core_params->i2c_enable)) {
+ _core_if->srp_success = 1;
+ }
+ else {
+ pcd_resume( _core_if );
+ /* Clear Session Request */
+ gotgctl.d32 = 0;
+ gotgctl.b.sesreq = 1;
+ dwc_modify_reg32( &global_regs->gotgctl,
+ gotgctl.d32, 0);
+ }
+ }
+ }
+ if (gotgint.b.hstnegsucstschng) {
+ /* Print statements during the HNP interrupt handling
+ * can cause it to fail.*/
+ gotgctl.d32 = dwc_read_reg32(&global_regs->gotgctl);
+ if (gotgctl.b.hstnegscs) {
+ if (dwc_otg_is_host_mode(_core_if) ) {
+ _core_if->op_state = B_HOST;
+ /*
+ * Need to disable SOF interrupt immediately.
+ * When switching from device to host, the PCD
+ * interrupt handler won't handle the
+ * interrupt if host mode is already set. The
+ * HCD interrupt handler won't get called if
+ * the HCD state is HALT. This means that the
+ * interrupt does not get handled and Linux
+ * complains loudly.
+ */
+ gintmsk.d32 = 0;
+ gintmsk.b.sofintr = 1;
+ dwc_modify_reg32(&global_regs->gintmsk,
+ gintmsk.d32, 0);
+ pcd_stop(_core_if);
+ /*
+ * Initialize the Core for Host mode.
+ */
+ hcd_start( _core_if );
+ _core_if->op_state = B_HOST;
+ }
+ } else {
+ gotgctl.d32 = 0;
+ gotgctl.b.hnpreq = 1;
+ gotgctl.b.devhnpen = 1;
+ dwc_modify_reg32( &global_regs->gotgctl,
+ gotgctl.d32, 0);
+ DWC_DEBUGPL( DBG_ANY, "HNP Failed\n");
+ DWC_ERROR( "Device Not Connected/Responding\n" );
+ }
+ }
+ if (gotgint.b.hstnegdet) {
+ /* The disconnect interrupt is set at the same time as
+ * Host Negotiation Detected. During the mode
+ * switch all interrupts are cleared so the disconnect
+ * interrupt handler will not get executed.
+ */
+ DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: "
+ "Host Negotiation Detected++ (%s)\n",
+ (dwc_otg_is_host_mode(_core_if)?"Host":"Device"));
+ if (dwc_otg_is_device_mode(_core_if)){
+ DWC_DEBUGPL(DBG_ANY, "a_suspend->a_peripheral (%d)\n",_core_if->op_state);
+ hcd_disconnect( _core_if );
+ pcd_start( _core_if );
+ _core_if->op_state = A_PERIPHERAL;
+ } else {
+ /*
+ * Need to disable SOF interrupt immediately. When
+ * switching from device to host, the PCD interrupt
+ * handler won't handle the interrupt if host mode is
+ * already set. The HCD interrupt handler won't get
+ * called if the HCD state is HALT. This means that
+ * the interrupt does not get handled and Linux
+ * complains loudly.
+ */
+ gintmsk.d32 = 0;
+ gintmsk.b.sofintr = 1;
+ dwc_modify_reg32(&global_regs->gintmsk,
+ gintmsk.d32, 0);
+ pcd_stop( _core_if );
+ hcd_start( _core_if );
+ _core_if->op_state = A_HOST;
+ }
+ }
+ if (gotgint.b.adevtoutchng) {
+ DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: "
+ "A-Device Timeout Change++\n");
+ }
+ if (gotgint.b.debdone) {
+ DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: "
+ "Debounce Done++\n");
+ }
+
+ /* Clear GOTGINT */
+ dwc_write_reg32 (&_core_if->core_global_regs->gotgint, gotgint.d32);
+
+ return 1;
+}
+
+/**
+ * This function handles the Connector ID Status Change Interrupt. It
+ * reads the OTG Interrupt Register (GOTCTL) to determine whether this
+ * is a Device to Host Mode transition or a Host Mode to Device
+ * Transition.
+ *
+ * This only occurs when the cable is connected/removed from the PHY
+ * connector.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+int32_t dwc_otg_handle_conn_id_status_change_intr(dwc_otg_core_if_t *_core_if)
+{
+ uint32_t count = 0;
+
+ gintsts_data_t gintsts = { .d32 = 0 };
+ gintmsk_data_t gintmsk = { .d32 = 0 };
+ gotgctl_data_t gotgctl = { .d32 = 0 };
+
+ /*
+ * Need to disable SOF interrupt immediately. If switching from device
+ * to host, the PCD interrupt handler won't handle the interrupt if
+ * host mode is already set. The HCD interrupt handler won't get
+ * called if the HCD state is HALT. This means that the interrupt does
+ * not get handled and Linux complains loudly.
+ */
+ gintmsk.b.sofintr = 1;
+ dwc_modify_reg32(&_core_if->core_global_regs->gintmsk, gintmsk.d32, 0);
+
+ DWC_DEBUGPL(DBG_CIL, " ++Connector ID Status Change Interrupt++ (%s)\n",
+ (dwc_otg_is_host_mode(_core_if)?"Host":"Device"));
+ gotgctl.d32 = dwc_read_reg32(&_core_if->core_global_regs->gotgctl);
+ DWC_DEBUGPL(DBG_CIL, "gotgctl=%0x\n", gotgctl.d32);
+ DWC_DEBUGPL(DBG_CIL, "gotgctl.b.conidsts=%d\n", gotgctl.b.conidsts);
+
+ /* B-Device connector (Device Mode) */
+ if (gotgctl.b.conidsts) {
+ /* Wait for switch to device mode. */
+ while (!dwc_otg_is_device_mode(_core_if) ){
+ DWC_PRINT("Waiting for Peripheral Mode, Mode=%s\n",
+ (dwc_otg_is_host_mode(_core_if)?"Host":"Peripheral"));
+ MDELAY(100);
+ if (++count > 10000) *(uint32_t*)NULL=0;
+ }
+ _core_if->op_state = B_PERIPHERAL;
+ dwc_otg_core_init(_core_if);
+ dwc_otg_enable_global_interrupts(_core_if);
+ pcd_start( _core_if );
+ } else {
+ /* A-Device connector (Host Mode) */
+ while (!dwc_otg_is_host_mode(_core_if) ) {
+ DWC_PRINT("Waiting for Host Mode, Mode=%s\n",
+ (dwc_otg_is_host_mode(_core_if)?"Host":"Peripheral"));
+ MDELAY(100);
+ if (++count > 10000) *(uint32_t*)NULL=0;
+ }
+ _core_if->op_state = A_HOST;
+ /*
+ * Initialize the Core for Host mode.
+ */
+ dwc_otg_core_init(_core_if);
+ dwc_otg_enable_global_interrupts(_core_if);
+ hcd_start( _core_if );
+ }
+
+ /* Set flag and clear interrupt */
+ gintsts.b.conidstschng = 1;
+ dwc_write_reg32 (&_core_if->core_global_regs->gintsts, gintsts.d32);
+
+ return 1;
+}
+
+/**
+ * This interrupt indicates that a device is initiating the Session
+ * Request Protocol to request the host to turn on bus power so a new
+ * session can begin. The handler responds by turning on bus power. If
+ * the DWC_otg controller is in low power mode, the handler brings the
+ * controller out of low power mode before turning on bus power.
+ *
+ * @param _core_if Programming view of DWC_otg controller.
+ */
+int32_t dwc_otg_handle_session_req_intr( dwc_otg_core_if_t *_core_if )
+{
+#ifndef DWC_HOST_ONLY // winder
+ hprt0_data_t hprt0;
+#endif
+ gintsts_data_t gintsts;
+
+#ifndef DWC_HOST_ONLY
+ DWC_DEBUGPL(DBG_ANY, "++Session Request Interrupt++\n");
+
+ if (dwc_otg_is_device_mode(_core_if) ) {
+ DWC_PRINT("SRP: Device mode\n");
+ } else {
+ DWC_PRINT("SRP: Host mode\n");
+
+ /* Turn on the port power bit. */
+ hprt0.d32 = dwc_otg_read_hprt0( _core_if );
+ hprt0.b.prtpwr = 1;
+ dwc_write_reg32(_core_if->host_if->hprt0, hprt0.d32);
+
+ /* Start the Connection timer. So a message can be displayed
+ * if connect does not occur within 10 seconds. */
+ hcd_session_start( _core_if );
+ }
+#endif
+
+ /* Clear interrupt */
+ gintsts.d32 = 0;
+ gintsts.b.sessreqintr = 1;
+ dwc_write_reg32 (&_core_if->core_global_regs->gintsts, gintsts.d32);
+
+ return 1;
+}
+
+/**
+ * This interrupt indicates that the DWC_otg controller has detected a
+ * resume or remote wakeup sequence. If the DWC_otg controller is in
+ * low power mode, the handler must brings the controller out of low
+ * power mode. The controller automatically begins resume
+ * signaling. The handler schedules a time to stop resume signaling.
+ */
+int32_t dwc_otg_handle_wakeup_detected_intr( dwc_otg_core_if_t *_core_if )
+{
+ gintsts_data_t gintsts;
+
+ DWC_DEBUGPL(DBG_ANY, "++Resume and Remote Wakeup Detected Interrupt++\n");
+
+ if (dwc_otg_is_device_mode(_core_if) ) {
+ dctl_data_t dctl = {.d32=0};
+ DWC_DEBUGPL(DBG_PCD, "DSTS=0x%0x\n",
+ dwc_read_reg32( &_core_if->dev_if->dev_global_regs->dsts));
+#ifdef PARTIAL_POWER_DOWN
+ if (_core_if->hwcfg4.b.power_optimiz) {
+ pcgcctl_data_t power = {.d32=0};
+
+ power.d32 = dwc_read_reg32( _core_if->pcgcctl );
+ DWC_DEBUGPL(DBG_CIL, "PCGCCTL=%0x\n", power.d32);
+
+ power.b.stoppclk = 0;
+ dwc_write_reg32( _core_if->pcgcctl, power.d32);
+
+ power.b.pwrclmp = 0;
+ dwc_write_reg32( _core_if->pcgcctl, power.d32);
+
+ power.b.rstpdwnmodule = 0;
+ dwc_write_reg32( _core_if->pcgcctl, power.d32);
+ }
+#endif
+ /* Clear the Remote Wakeup Signalling */
+ dctl.b.rmtwkupsig = 1;
+ dwc_modify_reg32( &_core_if->dev_if->dev_global_regs->dctl,
+ dctl.d32, 0 );
+
+ if (_core_if->pcd_cb && _core_if->pcd_cb->resume_wakeup) {
+ _core_if->pcd_cb->resume_wakeup( _core_if->pcd_cb->p );
+ }
+
+ } else {
+ /*
+ * Clear the Resume after 70ms. (Need 20 ms minimum. Use 70 ms
+ * so that OPT tests pass with all PHYs).
+ */
+ hprt0_data_t hprt0 = {.d32=0};
+ pcgcctl_data_t pcgcctl = {.d32=0};
+ /* Restart the Phy Clock */
+ pcgcctl.b.stoppclk = 1;
+ dwc_modify_reg32(_core_if->pcgcctl, pcgcctl.d32, 0);
+ UDELAY(10);
+
+ /* Now wait for 70 ms. */
+ hprt0.d32 = dwc_otg_read_hprt0( _core_if );
+ DWC_DEBUGPL(DBG_ANY,"Resume: HPRT0=%0x\n", hprt0.d32);
+ MDELAY(70);
+ hprt0.b.prtres = 0; /* Resume */
+ dwc_write_reg32(_core_if->host_if->hprt0, hprt0.d32);
+ DWC_DEBUGPL(DBG_ANY,"Clear Resume: HPRT0=%0x\n", dwc_read_reg32(_core_if->host_if->hprt0));
+ }
+
+ /* Clear interrupt */
+ gintsts.d32 = 0;
+ gintsts.b.wkupintr = 1;
+ dwc_write_reg32 (&_core_if->core_global_regs->gintsts, gintsts.d32);
+
+ return 1;
+}
+
+/**
+ * This interrupt indicates that a device has been disconnected from
+ * the root port.
+ */
+int32_t dwc_otg_handle_disconnect_intr( dwc_otg_core_if_t *_core_if)
+{
+ gintsts_data_t gintsts;
+
+ DWC_DEBUGPL(DBG_ANY, "++Disconnect Detected Interrupt++ (%s) %s\n",
+ (dwc_otg_is_host_mode(_core_if)?"Host":"Device"),
+ op_state_str(_core_if));
+
+/** @todo Consolidate this if statement. */
+#ifndef DWC_HOST_ONLY
+ if (_core_if->op_state == B_HOST) {
+ /* If in device mode Disconnect and stop the HCD, then
+ * start the PCD. */
+ hcd_disconnect( _core_if );
+ pcd_start( _core_if );
+ _core_if->op_state = B_PERIPHERAL;
+ } else if (dwc_otg_is_device_mode(_core_if)) {
+ gotgctl_data_t gotgctl = { .d32 = 0 };
+ gotgctl.d32 = dwc_read_reg32(&_core_if->core_global_regs->gotgctl);
+ if (gotgctl.b.hstsethnpen==1) {
+ /* Do nothing, if HNP in process the OTG
+ * interrupt "Host Negotiation Detected"
+ * interrupt will do the mode switch.
+ */
+ } else if (gotgctl.b.devhnpen == 0) {
+ /* If in device mode Disconnect and stop the HCD, then
+ * start the PCD. */
+ hcd_disconnect( _core_if );
+ pcd_start( _core_if );
+ _core_if->op_state = B_PERIPHERAL;
+ } else {
+ DWC_DEBUGPL(DBG_ANY,"!a_peripheral && !devhnpen\n");
+ }
+ } else {
+ if (_core_if->op_state == A_HOST) {
+ /* A-Cable still connected but device disconnected. */
+ hcd_disconnect( _core_if );
+ }
+ }
+#endif
+/* Without OTG, we should use the disconnect function!? winder added.*/
+#if 1 // NO OTG, so host only!!
+ hcd_disconnect( _core_if );
+#endif
+
+ gintsts.d32 = 0;
+ gintsts.b.disconnect = 1;
+ dwc_write_reg32 (&_core_if->core_global_regs->gintsts, gintsts.d32);
+ return 1;
+}
+/**
+ * This interrupt indicates that SUSPEND state has been detected on
+ * the USB.
+ *
+ * For HNP the USB Suspend interrupt signals the change from
+ * "a_peripheral" to "a_host".
+ *
+ * When power management is enabled the core will be put in low power
+ * mode.
+ */
+int32_t dwc_otg_handle_usb_suspend_intr(dwc_otg_core_if_t *_core_if )
+{
+ dsts_data_t dsts;
+ gintsts_data_t gintsts;
+
+ //805141:<IFTW-fchang>.removed DWC_DEBUGPL(DBG_ANY,"USB SUSPEND\n");
+
+ if (dwc_otg_is_device_mode( _core_if ) ) {
+ /* Check the Device status register to determine if the Suspend
+ * state is active. */
+ dsts.d32 = dwc_read_reg32( &_core_if->dev_if->dev_global_regs->dsts);
+ DWC_DEBUGPL(DBG_PCD, "DSTS=0x%0x\n", dsts.d32);
+ DWC_DEBUGPL(DBG_PCD, "DSTS.Suspend Status=%d "
+ "HWCFG4.power Optimize=%d\n",
+ dsts.b.suspsts, _core_if->hwcfg4.b.power_optimiz);
+
+
+#ifdef PARTIAL_POWER_DOWN
+/** @todo Add a module parameter for power management. */
+
+ if (dsts.b.suspsts && _core_if->hwcfg4.b.power_optimiz) {
+ pcgcctl_data_t power = {.d32=0};
+ DWC_DEBUGPL(DBG_CIL, "suspend\n");
+
+ power.b.pwrclmp = 1;
+ dwc_write_reg32( _core_if->pcgcctl, power.d32);
+
+ power.b.rstpdwnmodule = 1;
+ dwc_modify_reg32( _core_if->pcgcctl, 0, power.d32);
+
+ power.b.stoppclk = 1;
+ dwc_modify_reg32( _core_if->pcgcctl, 0, power.d32);
+
+ } else {
+ DWC_DEBUGPL(DBG_ANY,"disconnect?\n");
+ }
+#endif
+ /* PCD callback for suspend. */
+ pcd_suspend(_core_if);
+ } else {
+ if (_core_if->op_state == A_PERIPHERAL) {
+ DWC_DEBUGPL(DBG_ANY,"a_peripheral->a_host\n");
+ /* Clear the a_peripheral flag, back to a_host. */
+ pcd_stop( _core_if );
+ hcd_start( _core_if );
+ _core_if->op_state = A_HOST;
+ }
+ }
+
+ /* Clear interrupt */
+ gintsts.d32 = 0;
+ gintsts.b.usbsuspend = 1;
+ dwc_write_reg32( &_core_if->core_global_regs->gintsts, gintsts.d32);
+
+ return 1;
+}
+
+
+/**
+ * This function returns the Core Interrupt register.
+ */
+static inline uint32_t dwc_otg_read_common_intr(dwc_otg_core_if_t *_core_if)
+{
+ gintsts_data_t gintsts;
+ gintmsk_data_t gintmsk;
+ gintmsk_data_t gintmsk_common = {.d32=0};
+ gintmsk_common.b.wkupintr = 1;
+ gintmsk_common.b.sessreqintr = 1;
+ gintmsk_common.b.conidstschng = 1;
+ gintmsk_common.b.otgintr = 1;
+ gintmsk_common.b.modemismatch = 1;
+ gintmsk_common.b.disconnect = 1;
+ gintmsk_common.b.usbsuspend = 1;
+ /** @todo: The port interrupt occurs while in device
+ * mode. Added code to CIL to clear the interrupt for now!
+ */
+ gintmsk_common.b.portintr = 1;
+
+ gintsts.d32 = dwc_read_reg32(&_core_if->core_global_regs->gintsts);
+ gintmsk.d32 = dwc_read_reg32(&_core_if->core_global_regs->gintmsk);
+#ifdef DEBUG
+ /* if any common interrupts set */
+ if (gintsts.d32 & gintmsk_common.d32) {
+ DWC_DEBUGPL(DBG_ANY, "gintsts=%08x gintmsk=%08x\n",
+ gintsts.d32, gintmsk.d32);
+ }
+#endif
+
+ return ((gintsts.d32 & gintmsk.d32 ) & gintmsk_common.d32);
+
+}
+
+/**
+ * Common interrupt handler.
+ *
+ * The common interrupts are those that occur in both Host and Device mode.
+ * This handler handles the following interrupts:
+ * - Mode Mismatch Interrupt
+ * - Disconnect Interrupt
+ * - OTG Interrupt
+ * - Connector ID Status Change Interrupt
+ * - Session Request Interrupt.
+ * - Resume / Remote Wakeup Detected Interrupt.
+ *
+ */
+extern int32_t dwc_otg_handle_common_intr( dwc_otg_core_if_t *_core_if )
+{
+ int retval = 0;
+ gintsts_data_t gintsts;
+
+ gintsts.d32 = dwc_otg_read_common_intr(_core_if);
+
+ if (gintsts.b.modemismatch) {
+ retval |= dwc_otg_handle_mode_mismatch_intr( _core_if );
+ }
+ if (gintsts.b.otgintr) {
+ retval |= dwc_otg_handle_otg_intr( _core_if );
+ }
+ if (gintsts.b.conidstschng) {
+ retval |= dwc_otg_handle_conn_id_status_change_intr( _core_if );
+ }
+ if (gintsts.b.disconnect) {
+ retval |= dwc_otg_handle_disconnect_intr( _core_if );
+ }
+ if (gintsts.b.sessreqintr) {
+ retval |= dwc_otg_handle_session_req_intr( _core_if );
+ }
+ if (gintsts.b.wkupintr) {
+ retval |= dwc_otg_handle_wakeup_detected_intr( _core_if );
+ }
+ if (gintsts.b.usbsuspend) {
+ retval |= dwc_otg_handle_usb_suspend_intr( _core_if );
+ }
+ if (gintsts.b.portintr && dwc_otg_is_device_mode(_core_if)) {
+ /* The port interrupt occurs while in device mode with HPRT0
+ * Port Enable/Disable.
+ */
+ gintsts.d32 = 0;
+ gintsts.b.portintr = 1;
+ dwc_write_reg32(&_core_if->core_global_regs->gintsts,
+ gintsts.d32);
+ retval |= 1;
+
+ }
+ return retval;
+}
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_driver.c
@@ -0,0 +1,1274 @@
+/* ==========================================================================
+ * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/drivers/dwc_otg_driver.c $
+ * $Revision: 1.1.1.1 $
+ * $Date: 2009-04-17 06:15:34 $
+ * $Change: 631780 $
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+
+/** @file
+ * The dwc_otg_driver module provides the initialization and cleanup entry
+ * points for the DWC_otg driver. This module will be dynamically installed
+ * after Linux is booted using the insmod command. When the module is
+ * installed, the dwc_otg_init function is called. When the module is
+ * removed (using rmmod), the dwc_otg_cleanup function is called.
+ *
+ * This module also defines a data structure for the dwc_otg_driver, which is
+ * used in conjunction with the standard ARM lm_device structure. These
+ * structures allow the OTG driver to comply with the standard Linux driver
+ * model in which devices and drivers are registered with a bus driver. This
+ * has the benefit that Linux can expose attributes of the driver and device
+ * in its special sysfs file system. Users can then read or write files in
+ * this file system to perform diagnostics on the driver components or the
+ * device.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+
+#include <linux/device.h>
+#include <linux/platform_device.h>
+
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/stat.h> /* permission constants */
+#include <linux/irq.h>
+#include <asm/io.h>
+
+#include "dwc_otg_plat.h"
+#include "dwc_otg_attr.h"
+#include "dwc_otg_driver.h"
+#include "dwc_otg_cil.h"
+#include "dwc_otg_cil_ifx.h"
+
+// #include "dwc_otg_pcd.h" // device
+#include "dwc_otg_hcd.h" // host
+
+#include "dwc_otg_ifx.h" // for Infineon platform specific.
+
+#define DWC_DRIVER_VERSION "2.60a 22-NOV-2006"
+#define DWC_DRIVER_DESC "HS OTG USB Controller driver"
+
+const char dwc_driver_name[] = "dwc_otg";
+
+static unsigned long dwc_iomem_base = IFX_USB_IOMEM_BASE;
+int dwc_irq = LTQ_USB_INT;
+//int dwc_irq = 54;
+//int dwc_irq = IFXMIPS_USB_OC_INT;
+
+extern int ifx_usb_hc_init(unsigned long base_addr, int irq);
+extern void ifx_usb_hc_remove(void);
+
+/*-------------------------------------------------------------------------*/
+/* Encapsulate the module parameter settings */
+
+static dwc_otg_core_params_t dwc_otg_module_params = {
+ .opt = -1,
+ .otg_cap = -1,
+ .dma_enable = -1,
+ .dma_burst_size = -1,
+ .speed = -1,
+ .host_support_fs_ls_low_power = -1,
+ .host_ls_low_power_phy_clk = -1,
+ .enable_dynamic_fifo = -1,
+ .data_fifo_size = -1,
+ .dev_rx_fifo_size = -1,
+ .dev_nperio_tx_fifo_size = -1,
+ .dev_perio_tx_fifo_size = /* dev_perio_tx_fifo_size_1 */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 15 */
+ .host_rx_fifo_size = -1,
+ .host_nperio_tx_fifo_size = -1,
+ .host_perio_tx_fifo_size = -1,
+ .max_transfer_size = -1,
+ .max_packet_count = -1,
+ .host_channels = -1,
+ .dev_endpoints = -1,
+ .phy_type = -1,
+ .phy_utmi_width = -1,
+ .phy_ulpi_ddr = -1,
+ .phy_ulpi_ext_vbus = -1,
+ .i2c_enable = -1,
+ .ulpi_fs_ls = -1,
+ .ts_dline = -1,
+ .en_multiple_tx_fifo = -1,
+ .dev_tx_fifo_size = { /* dev_tx_fifo_size */
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+ }, /* 15 */
+ .thr_ctl = -1,
+ .tx_thr_length = -1,
+ .rx_thr_length = -1,
+};
+
+/**
+ * This function shows the Driver Version.
+ */
+static ssize_t version_show(struct device_driver *dev, char *buf)
+{
+ return snprintf(buf, sizeof(DWC_DRIVER_VERSION)+2,"%s\n",
+ DWC_DRIVER_VERSION);
+}
+static DRIVER_ATTR(version, S_IRUGO, version_show, NULL);
+
+/**
+ * Global Debug Level Mask.
+ */
+uint32_t g_dbg_lvl = 0xff; /* OFF */
+
+/**
+ * This function shows the driver Debug Level.
+ */
+static ssize_t dbg_level_show(struct device_driver *_drv, char *_buf)
+{
+ return sprintf(_buf, "0x%0x\n", g_dbg_lvl);
+}
+/**
+ * This function stores the driver Debug Level.
+ */
+static ssize_t dbg_level_store(struct device_driver *_drv, const char *_buf,
+ size_t _count)
+{
+ g_dbg_lvl = simple_strtoul(_buf, NULL, 16);
+ return _count;
+}
+static DRIVER_ATTR(debuglevel, S_IRUGO|S_IWUSR, dbg_level_show, dbg_level_store);
+
+/**
+ * This function is called during module intialization to verify that
+ * the module parameters are in a valid state.
+ */
+static int check_parameters(dwc_otg_core_if_t *core_if)
+{
+ int i;
+ int retval = 0;
+
+/* Checks if the parameter is outside of its valid range of values */
+#define DWC_OTG_PARAM_TEST(_param_,_low_,_high_) \
+ ((dwc_otg_module_params._param_ < (_low_)) || \
+ (dwc_otg_module_params._param_ > (_high_)))
+
+/* If the parameter has been set by the user, check that the parameter value is
+ * within the value range of values. If not, report a module error. */
+#define DWC_OTG_PARAM_ERR(_param_,_low_,_high_,_string_) \
+ do { \
+ if (dwc_otg_module_params._param_ != -1) { \
+ if (DWC_OTG_PARAM_TEST(_param_,(_low_),(_high_))) { \
+ DWC_ERROR("`%d' invalid for parameter `%s'\n", \
+ dwc_otg_module_params._param_, _string_); \
+ dwc_otg_module_params._param_ = dwc_param_##_param_##_default; \
+ retval ++; \
+ } \
+ } \
+ } while (0)
+
+ DWC_OTG_PARAM_ERR(opt,0,1,"opt");
+ DWC_OTG_PARAM_ERR(otg_cap,0,2,"otg_cap");
+ DWC_OTG_PARAM_ERR(dma_enable,0,1,"dma_enable");
+ DWC_OTG_PARAM_ERR(speed,0,1,"speed");
+ DWC_OTG_PARAM_ERR(host_support_fs_ls_low_power,0,1,"host_support_fs_ls_low_power");
+ DWC_OTG_PARAM_ERR(host_ls_low_power_phy_clk,0,1,"host_ls_low_power_phy_clk");
+ DWC_OTG_PARAM_ERR(enable_dynamic_fifo,0,1,"enable_dynamic_fifo");
+ DWC_OTG_PARAM_ERR(data_fifo_size,32,32768,"data_fifo_size");
+ DWC_OTG_PARAM_ERR(dev_rx_fifo_size,16,32768,"dev_rx_fifo_size");
+ DWC_OTG_PARAM_ERR(dev_nperio_tx_fifo_size,16,32768,"dev_nperio_tx_fifo_size");
+ DWC_OTG_PARAM_ERR(host_rx_fifo_size,16,32768,"host_rx_fifo_size");
+ DWC_OTG_PARAM_ERR(host_nperio_tx_fifo_size,16,32768,"host_nperio_tx_fifo_size");
+ DWC_OTG_PARAM_ERR(host_perio_tx_fifo_size,16,32768,"host_perio_tx_fifo_size");
+ DWC_OTG_PARAM_ERR(max_transfer_size,2047,524288,"max_transfer_size");
+ DWC_OTG_PARAM_ERR(max_packet_count,15,511,"max_packet_count");
+ DWC_OTG_PARAM_ERR(host_channels,1,16,"host_channels");
+ DWC_OTG_PARAM_ERR(dev_endpoints,1,15,"dev_endpoints");
+ DWC_OTG_PARAM_ERR(phy_type,0,2,"phy_type");
+ DWC_OTG_PARAM_ERR(phy_ulpi_ddr,0,1,"phy_ulpi_ddr");
+ DWC_OTG_PARAM_ERR(phy_ulpi_ext_vbus,0,1,"phy_ulpi_ext_vbus");
+ DWC_OTG_PARAM_ERR(i2c_enable,0,1,"i2c_enable");
+ DWC_OTG_PARAM_ERR(ulpi_fs_ls,0,1,"ulpi_fs_ls");
+ DWC_OTG_PARAM_ERR(ts_dline,0,1,"ts_dline");
+
+ if (dwc_otg_module_params.dma_burst_size != -1) {
+ if (DWC_OTG_PARAM_TEST(dma_burst_size,1,1) &&
+ DWC_OTG_PARAM_TEST(dma_burst_size,4,4) &&
+ DWC_OTG_PARAM_TEST(dma_burst_size,8,8) &&
+ DWC_OTG_PARAM_TEST(dma_burst_size,16,16) &&
+ DWC_OTG_PARAM_TEST(dma_burst_size,32,32) &&
+ DWC_OTG_PARAM_TEST(dma_burst_size,64,64) &&
+ DWC_OTG_PARAM_TEST(dma_burst_size,128,128) &&
+ DWC_OTG_PARAM_TEST(dma_burst_size,256,256))
+ {
+ DWC_ERROR("`%d' invalid for parameter `dma_burst_size'\n",
+ dwc_otg_module_params.dma_burst_size);
+ dwc_otg_module_params.dma_burst_size = 32;
+ retval ++;
+ }
+ }
+
+ if (dwc_otg_module_params.phy_utmi_width != -1) {
+ if (DWC_OTG_PARAM_TEST(phy_utmi_width,8,8) &&
+ DWC_OTG_PARAM_TEST(phy_utmi_width,16,16))
+ {
+ DWC_ERROR("`%d' invalid for parameter `phy_utmi_width'\n",
+ dwc_otg_module_params.phy_utmi_width);
+ //dwc_otg_module_params.phy_utmi_width = 16;
+ dwc_otg_module_params.phy_utmi_width = 8;
+ retval ++;
+ }
+ }
+
+ for (i=0; i<15; i++) {
+ /** @todo should be like above */
+ //DWC_OTG_PARAM_ERR(dev_perio_tx_fifo_size[i],4,768,"dev_perio_tx_fifo_size");
+ if (dwc_otg_module_params.dev_perio_tx_fifo_size[i] != -1) {
+ if (DWC_OTG_PARAM_TEST(dev_perio_tx_fifo_size[i],4,768)) {
+ DWC_ERROR("`%d' invalid for parameter `%s_%d'\n",
+ dwc_otg_module_params.dev_perio_tx_fifo_size[i], "dev_perio_tx_fifo_size", i);
+ dwc_otg_module_params.dev_perio_tx_fifo_size[i] = dwc_param_dev_perio_tx_fifo_size_default;
+ retval ++;
+ }
+ }
+ }
+
+ DWC_OTG_PARAM_ERR(en_multiple_tx_fifo, 0, 1, "en_multiple_tx_fifo");
+ for (i = 0; i < 15; i++) {
+ /** @todo should be like above */
+ //DWC_OTG_PARAM_ERR(dev_tx_fifo_size[i],4,768,"dev_tx_fifo_size");
+ if (dwc_otg_module_params.dev_tx_fifo_size[i] != -1) {
+ if (DWC_OTG_PARAM_TEST(dev_tx_fifo_size[i], 4, 768)) {
+ DWC_ERROR("`%d' invalid for parameter `%s_%d'\n",
+ dwc_otg_module_params.dev_tx_fifo_size[i],
+ "dev_tx_fifo_size", i);
+ dwc_otg_module_params.dev_tx_fifo_size[i] =
+ dwc_param_dev_tx_fifo_size_default;
+ retval++;
+ }
+ }
+ }
+ DWC_OTG_PARAM_ERR(thr_ctl, 0, 7, "thr_ctl");
+ DWC_OTG_PARAM_ERR(tx_thr_length, 8, 128, "tx_thr_length");
+ DWC_OTG_PARAM_ERR(rx_thr_length, 8, 128, "rx_thr_length");
+
+ /* At this point, all module parameters that have been set by the user
+ * are valid, and those that have not are left unset. Now set their
+ * default values and/or check the parameters against the hardware
+ * configurations of the OTG core. */
+
+
+
+/* This sets the parameter to the default value if it has not been set by the
+ * user */
+#define DWC_OTG_PARAM_SET_DEFAULT(_param_) \
+ ({ \
+ int changed = 1; \
+ if (dwc_otg_module_params._param_ == -1) { \
+ changed = 0; \
+ dwc_otg_module_params._param_ = dwc_param_##_param_##_default; \
+ } \
+ changed; \
+ })
+
+/* This checks the macro agains the hardware configuration to see if it is
+ * valid. It is possible that the default value could be invalid. In this
+ * case, it will report a module error if the user touched the parameter.
+ * Otherwise it will adjust the value without any error. */
+#define DWC_OTG_PARAM_CHECK_VALID(_param_,_str_,_is_valid_,_set_valid_) \
+ ({ \
+ int changed = DWC_OTG_PARAM_SET_DEFAULT(_param_); \
+ int error = 0; \
+ if (!(_is_valid_)) { \
+ if (changed) { \
+ DWC_ERROR("`%d' invalid for parameter `%s'. Check HW configuration.\n", dwc_otg_module_params._param_,_str_); \
+ error = 1; \
+ } \
+ dwc_otg_module_params._param_ = (_set_valid_); \
+ } \
+ error; \
+ })
+
+ /* OTG Cap */
+ retval += DWC_OTG_PARAM_CHECK_VALID(otg_cap,"otg_cap",
+ ({
+ int valid;
+ valid = 1;
+ switch (dwc_otg_module_params.otg_cap) {
+ case DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE:
+ if (core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG) valid = 0;
+ break;
+ case DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE:
+ if ((core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG) &&
+ (core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG) &&
+ (core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE) &&
+ (core_if->hwcfg2.b.op_mode != DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST))
+ {
+ valid = 0;
+ }
+ break;
+ case DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE:
+ /* always valid */
+ break;
+ }
+ valid;
+ }),
+ (((core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG) ||
+ (core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG) ||
+ (core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE) ||
+ (core_if->hwcfg2.b.op_mode == DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST)) ?
+ DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE :
+ DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE));
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(dma_enable,"dma_enable",
+ ((dwc_otg_module_params.dma_enable == 1) && (core_if->hwcfg2.b.architecture == 0)) ? 0 : 1,
+ 0);
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(opt,"opt",
+ 1,
+ 0);
+
+ DWC_OTG_PARAM_SET_DEFAULT(dma_burst_size);
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(host_support_fs_ls_low_power,
+ "host_support_fs_ls_low_power",
+ 1, 0);
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(enable_dynamic_fifo,
+ "enable_dynamic_fifo",
+ ((dwc_otg_module_params.enable_dynamic_fifo == 0) ||
+ (core_if->hwcfg2.b.dynamic_fifo == 1)), 0);
+
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(data_fifo_size,
+ "data_fifo_size",
+ (dwc_otg_module_params.data_fifo_size <= core_if->hwcfg3.b.dfifo_depth),
+ core_if->hwcfg3.b.dfifo_depth);
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(dev_rx_fifo_size,
+ "dev_rx_fifo_size",
+ (dwc_otg_module_params.dev_rx_fifo_size <= dwc_read_reg32(&core_if->core_global_regs->grxfsiz)),
+ dwc_read_reg32(&core_if->core_global_regs->grxfsiz));
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(dev_nperio_tx_fifo_size,
+ "dev_nperio_tx_fifo_size",
+ (dwc_otg_module_params.dev_nperio_tx_fifo_size <= (dwc_read_reg32(&core_if->core_global_regs->gnptxfsiz) >> 16)),
+ (dwc_read_reg32(&core_if->core_global_regs->gnptxfsiz) >> 16));
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(host_rx_fifo_size,
+ "host_rx_fifo_size",
+ (dwc_otg_module_params.host_rx_fifo_size <= dwc_read_reg32(&core_if->core_global_regs->grxfsiz)),
+ dwc_read_reg32(&core_if->core_global_regs->grxfsiz));
+
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(host_nperio_tx_fifo_size,
+ "host_nperio_tx_fifo_size",
+ (dwc_otg_module_params.host_nperio_tx_fifo_size <= (dwc_read_reg32(&core_if->core_global_regs->gnptxfsiz) >> 16)),
+ (dwc_read_reg32(&core_if->core_global_regs->gnptxfsiz) >> 16));
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(host_perio_tx_fifo_size,
+ "host_perio_tx_fifo_size",
+ (dwc_otg_module_params.host_perio_tx_fifo_size <= ((dwc_read_reg32(&core_if->core_global_regs->hptxfsiz) >> 16))),
+ ((dwc_read_reg32(&core_if->core_global_regs->hptxfsiz) >> 16)));
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(max_transfer_size,
+ "max_transfer_size",
+ (dwc_otg_module_params.max_transfer_size < (1 << (core_if->hwcfg3.b.xfer_size_cntr_width + 11))),
+ ((1 << (core_if->hwcfg3.b.xfer_size_cntr_width + 11)) - 1));
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(max_packet_count,
+ "max_packet_count",
+ (dwc_otg_module_params.max_packet_count < (1 << (core_if->hwcfg3.b.packet_size_cntr_width + 4))),
+ ((1 << (core_if->hwcfg3.b.packet_size_cntr_width + 4)) - 1));
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(host_channels,
+ "host_channels",
+ (dwc_otg_module_params.host_channels <= (core_if->hwcfg2.b.num_host_chan + 1)),
+ (core_if->hwcfg2.b.num_host_chan + 1));
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(dev_endpoints,
+ "dev_endpoints",
+ (dwc_otg_module_params.dev_endpoints <= (core_if->hwcfg2.b.num_dev_ep)),
+ core_if->hwcfg2.b.num_dev_ep);
+
+/*
+ * Define the following to disable the FS PHY Hardware checking. This is for
+ * internal testing only.
+ *
+ * #define NO_FS_PHY_HW_CHECKS
+ */
+
+#ifdef NO_FS_PHY_HW_CHECKS
+ retval += DWC_OTG_PARAM_CHECK_VALID(phy_type,
+ "phy_type", 1, 0);
+#else
+ retval += DWC_OTG_PARAM_CHECK_VALID(phy_type,
+ "phy_type",
+ ({
+ int valid = 0;
+ if ((dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_UTMI) &&
+ ((core_if->hwcfg2.b.hs_phy_type == 1) ||
+ (core_if->hwcfg2.b.hs_phy_type == 3)))
+ {
+ valid = 1;
+ }
+ else if ((dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_ULPI) &&
+ ((core_if->hwcfg2.b.hs_phy_type == 2) ||
+ (core_if->hwcfg2.b.hs_phy_type == 3)))
+ {
+ valid = 1;
+ }
+ else if ((dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS) &&
+ (core_if->hwcfg2.b.fs_phy_type == 1))
+ {
+ valid = 1;
+ }
+ valid;
+ }),
+ ({
+ int set = DWC_PHY_TYPE_PARAM_FS;
+ if (core_if->hwcfg2.b.hs_phy_type) {
+ if ((core_if->hwcfg2.b.hs_phy_type == 3) ||
+ (core_if->hwcfg2.b.hs_phy_type == 1)) {
+ set = DWC_PHY_TYPE_PARAM_UTMI;
+ }
+ else {
+ set = DWC_PHY_TYPE_PARAM_ULPI;
+ }
+ }
+ set;
+ }));
+#endif
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(speed,"speed",
+ (dwc_otg_module_params.speed == 0) && (dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS) ? 0 : 1,
+ dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS ? 1 : 0);
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(host_ls_low_power_phy_clk,
+ "host_ls_low_power_phy_clk",
+ ((dwc_otg_module_params.host_ls_low_power_phy_clk == DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ) && (dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS) ? 0 : 1),
+ ((dwc_otg_module_params.phy_type == DWC_PHY_TYPE_PARAM_FS) ? DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ : DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ));
+
+ DWC_OTG_PARAM_SET_DEFAULT(phy_ulpi_ddr);
+ DWC_OTG_PARAM_SET_DEFAULT(phy_ulpi_ext_vbus);
+ DWC_OTG_PARAM_SET_DEFAULT(phy_utmi_width);
+ DWC_OTG_PARAM_SET_DEFAULT(ulpi_fs_ls);
+ DWC_OTG_PARAM_SET_DEFAULT(ts_dline);
+
+#ifdef NO_FS_PHY_HW_CHECKS
+ retval += DWC_OTG_PARAM_CHECK_VALID(i2c_enable,
+ "i2c_enable", 1, 0);
+#else
+ retval += DWC_OTG_PARAM_CHECK_VALID(i2c_enable,
+ "i2c_enable",
+ (dwc_otg_module_params.i2c_enable == 1) && (core_if->hwcfg3.b.i2c == 0) ? 0 : 1,
+ 0);
+#endif
+
+ for (i=0; i<16; i++) {
+
+ int changed = 1;
+ int error = 0;
+
+ if (dwc_otg_module_params.dev_perio_tx_fifo_size[i] == -1) {
+ changed = 0;
+ dwc_otg_module_params.dev_perio_tx_fifo_size[i] = dwc_param_dev_perio_tx_fifo_size_default;
+ }
+ if (!(dwc_otg_module_params.dev_perio_tx_fifo_size[i] <= (dwc_read_reg32(&core_if->core_global_regs->dptxfsiz_dieptxf[i])))) {
+ if (changed) {
+ DWC_ERROR("`%d' invalid for parameter `dev_perio_fifo_size_%d'. Check HW configuration.\n", dwc_otg_module_params.dev_perio_tx_fifo_size[i],i);
+ error = 1;
+ }
+ dwc_otg_module_params.dev_perio_tx_fifo_size[i] = dwc_read_reg32(&core_if->core_global_regs->dptxfsiz_dieptxf[i]);
+ }
+ retval += error;
+ }
+
+ retval += DWC_OTG_PARAM_CHECK_VALID(en_multiple_tx_fifo,
+ "en_multiple_tx_fifo",
+ ((dwc_otg_module_params.en_multiple_tx_fifo == 1) &&
+ (core_if->hwcfg4.b.ded_fifo_en == 0)) ? 0 : 1, 0);
+
+ for (i = 0; i < 16; i++) {
+ int changed = 1;
+ int error = 0;
+ if (dwc_otg_module_params.dev_tx_fifo_size[i] == -1) {
+ changed = 0;
+ dwc_otg_module_params.dev_tx_fifo_size[i] =
+ dwc_param_dev_tx_fifo_size_default;
+ }
+ if (!(dwc_otg_module_params.dev_tx_fifo_size[i] <=
+ (dwc_read_reg32(&core_if->core_global_regs->dptxfsiz_dieptxf[i])))) {
+ if (changed) {
+ DWC_ERROR("%d' invalid for parameter `dev_perio_fifo_size_%d'."
+ "Check HW configuration.\n",dwc_otg_module_params.dev_tx_fifo_size[i],i);
+ error = 1;
+ }
+ dwc_otg_module_params.dev_tx_fifo_size[i] =
+ dwc_read_reg32(&core_if->core_global_regs->dptxfsiz_dieptxf[i]);
+ }
+ retval += error;
+ }
+ DWC_OTG_PARAM_SET_DEFAULT(thr_ctl);
+ DWC_OTG_PARAM_SET_DEFAULT(tx_thr_length);
+ DWC_OTG_PARAM_SET_DEFAULT(rx_thr_length);
+ return retval;
+} // check_parameters
+
+
+/**
+ * This function is the top level interrupt handler for the Common
+ * (Device and host modes) interrupts.
+ */
+static irqreturn_t dwc_otg_common_irq(int _irq, void *_dev)
+{
+ dwc_otg_device_t *otg_dev = _dev;
+ int32_t retval = IRQ_NONE;
+
+ retval = dwc_otg_handle_common_intr( otg_dev->core_if );
+
+ mask_and_ack_ifx_irq (_irq);
+
+ return IRQ_RETVAL(retval);
+}
+
+
+/**
+ * This function is called when a DWC_OTG device is unregistered with the
+ * dwc_otg_driver. This happens, for example, when the rmmod command is
+ * executed. The device may or may not be electrically present. If it is
+ * present, the driver stops device processing. Any resources used on behalf
+ * of this device are freed.
+ *
+ * @return
+ */
+static int
+dwc_otg_driver_remove(struct platform_device *_dev)
+{
+ //dwc_otg_device_t *otg_dev = dev_get_drvdata(&_dev->dev);
+ dwc_otg_device_t *otg_dev = platform_get_drvdata(_dev);
+
+ DWC_DEBUGPL(DBG_ANY, "%s(%p)\n", __func__, _dev);
+
+ if (otg_dev == NULL) {
+ /* Memory allocation for the dwc_otg_device failed. */
+ return 0;
+ }
+
+ /*
+ * Free the IRQ
+ */
+ if (otg_dev->common_irq_installed) {
+ free_irq( otg_dev->irq, otg_dev );
+ }
+
+#ifndef DWC_DEVICE_ONLY
+ if (otg_dev->hcd != NULL) {
+ dwc_otg_hcd_remove(&_dev->dev);
+ }
+#endif
+ printk("after removehcd\n");
+
+// Note: Integrate HOST and DEVICE(Gadget) is not planned yet.
+#ifndef DWC_HOST_ONLY
+ if (otg_dev->pcd != NULL) {
+ dwc_otg_pcd_remove(otg_dev);
+ }
+#endif
+ if (otg_dev->core_if != NULL) {
+ dwc_otg_cil_remove( otg_dev->core_if );
+ }
+ printk("after removecil\n");
+
+ /*
+ * Remove the device attributes
+ */
+ dwc_otg_attr_remove(&_dev->dev);
+ printk("after removeattr\n");
+
+ /*
+ * Return the memory.
+ */
+ if (otg_dev->base != NULL) {
+ iounmap(otg_dev->base);
+ }
+ if (otg_dev->phys_addr != 0) {
+ release_mem_region(otg_dev->phys_addr, otg_dev->base_len);
+ }
+ kfree(otg_dev);
+
+ /*
+ * Clear the drvdata pointer.
+ */
+ //dev_set_drvdata(&_dev->dev, 0);
+ platform_set_drvdata(_dev, 0);
+ return 0;
+}
+
+/**
+ * This function is called when an DWC_OTG device is bound to a
+ * dwc_otg_driver. It creates the driver components required to
+ * control the device (CIL, HCD, and PCD) and it initializes the
+ * device. The driver components are stored in a dwc_otg_device
+ * structure. A reference to the dwc_otg_device is saved in the
+ * lm_device. This allows the driver to access the dwc_otg_device
+ * structure on subsequent calls to driver methods for this device.
+ *
+ * @return
+ */
+static int __devinit
+dwc_otg_driver_probe(struct platform_device *_dev)
+{
+ int retval = 0;
+ dwc_otg_device_t *dwc_otg_device;
+ int pin = (int)_dev->dev.platform_data;
+ int32_t snpsid;
+ struct resource *res;
+ gusbcfg_data_t usbcfg = {.d32 = 0};
+
+ // GPIOs
+ if(pin >= 0)
+ {
+ gpio_request(pin, "usb_power");
+ gpio_direction_output(pin, 1);
+ gpio_set_value(pin, 1);
+ gpio_export(pin, 0);
+ }
+ dev_dbg(&_dev->dev, "dwc_otg_driver_probe (%p)\n", _dev);
+
+ dwc_otg_device = kmalloc(sizeof(dwc_otg_device_t), GFP_KERNEL);
+ if (dwc_otg_device == 0) {
+ dev_err(&_dev->dev, "kmalloc of dwc_otg_device failed\n");
+ retval = -ENOMEM;
+ goto fail;
+ }
+ memset(dwc_otg_device, 0, sizeof(*dwc_otg_device));
+ dwc_otg_device->reg_offset = 0xFFFFFFFF;
+
+ /*
+ * Retrieve the memory and IRQ resources.
+ */
+ dwc_otg_device->irq = platform_get_irq(_dev, 0);
+ if (dwc_otg_device->irq == 0) {
+ dev_err(&_dev->dev, "no device irq\n");
+ retval = -ENODEV;
+ goto fail;
+ }
+ dev_dbg(&_dev->dev, "OTG - device irq: %d\n", dwc_otg_device->irq);
+ res = platform_get_resource(_dev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&_dev->dev, "no CSR address\n");
+ retval = -ENODEV;
+ goto fail;
+ }
+ dev_dbg(&_dev->dev, "OTG - ioresource_mem start0x%08x: end:0x%08x\n",
+ (unsigned)res->start, (unsigned)res->end);
+ dwc_otg_device->phys_addr = res->start;
+ dwc_otg_device->base_len = res->end - res->start + 1;
+ if (request_mem_region(dwc_otg_device->phys_addr, dwc_otg_device->base_len,
+ dwc_driver_name) == NULL) {
+ dev_err(&_dev->dev, "request_mem_region failed\n");
+ retval = -EBUSY;
+ goto fail;
+ }
+
+ /*
+ * Map the DWC_otg Core memory into virtual address space.
+ */
+ dwc_otg_device->base = ioremap_nocache(dwc_otg_device->phys_addr, dwc_otg_device->base_len);
+ if (dwc_otg_device->base == NULL) {
+ dev_err(&_dev->dev, "ioremap() failed\n");
+ retval = -ENOMEM;
+ goto fail;
+ }
+ dev_dbg(&_dev->dev, "mapped base=0x%08x\n", (unsigned)dwc_otg_device->base);
+
+ /*
+ * Attempt to ensure this device is really a DWC_otg Controller.
+ * Read and verify the SNPSID register contents. The value should be
+ * 0x45F42XXX, which corresponds to "OT2", as in "OTG version 2.XX".
+ */
+ snpsid = dwc_read_reg32((uint32_t *)((uint8_t *)dwc_otg_device->base + 0x40));
+ if ((snpsid & 0xFFFFF000) != 0x4F542000) {
+ dev_err(&_dev->dev, "Bad value for SNPSID: 0x%08x\n", snpsid);
+ retval = -EINVAL;
+ goto fail;
+ }
+
+ /*
+ * Initialize driver data to point to the global DWC_otg
+ * Device structure.
+ */
+ platform_set_drvdata(_dev, dwc_otg_device);
+ dev_dbg(&_dev->dev, "dwc_otg_device=0x%p\n", dwc_otg_device);
+ dwc_otg_device->core_if = dwc_otg_cil_init( dwc_otg_device->base, &dwc_otg_module_params);
+ if (dwc_otg_device->core_if == 0) {
+ dev_err(&_dev->dev, "CIL initialization failed!\n");
+ retval = -ENOMEM;
+ goto fail;
+ }
+
+ /*
+ * Validate parameter values.
+ */
+ if (check_parameters(dwc_otg_device->core_if) != 0) {
+ retval = -EINVAL;
+ goto fail;
+ }
+
+ /* Added for PLB DMA phys virt mapping */
+ //dwc_otg_device->core_if->phys_addr = dwc_otg_device->phys_addr;
+ /*
+ * Create Device Attributes in sysfs
+ */
+ dwc_otg_attr_create (&_dev->dev);
+
+ /*
+ * Disable the global interrupt until all the interrupt
+ * handlers are installed.
+ */
+ dwc_otg_disable_global_interrupts( dwc_otg_device->core_if );
+ /*
+ * Install the interrupt handler for the common interrupts before
+ * enabling common interrupts in core_init below.
+ */
+ DWC_DEBUGPL( DBG_CIL, "registering (common) handler for irq%d\n", dwc_otg_device->irq);
+
+ retval = request_irq((unsigned int)dwc_otg_device->irq, dwc_otg_common_irq,
+ //SA_INTERRUPT|SA_SHIRQ, "dwc_otg", (void *)dwc_otg_device );
+ IRQF_SHARED, "dwc_otg", (void *)dwc_otg_device );
+ //IRQF_DISABLED, "dwc_otg", (void *)dwc_otg_device );
+ if (retval != 0) {
+ DWC_ERROR("request of irq%d failed retval: %d\n", dwc_otg_device->irq, retval);
+ retval = -EBUSY;
+ goto fail;
+ } else {
+ dwc_otg_device->common_irq_installed = 1;
+ }
+
+ /*
+ * Initialize the DWC_otg core.
+ */
+ dwc_otg_core_init( dwc_otg_device->core_if );
+
+
+#ifndef DWC_HOST_ONLY // otg device mode. (gadget.)
+ /*
+ * Initialize the PCD
+ */
+ retval = dwc_otg_pcd_init(dwc_otg_device);
+ if (retval != 0) {
+ DWC_ERROR("dwc_otg_pcd_init failed\n");
+ dwc_otg_device->pcd = NULL;
+ goto fail;
+ }
+#endif // DWC_HOST_ONLY
+
+#ifndef DWC_DEVICE_ONLY // otg host mode. (HCD)
+ /*
+ * Initialize the HCD
+ */
+#if 1 /*fscz*/
+ /* force_host_mode */
+ usbcfg.d32 = dwc_read_reg32(&dwc_otg_device->core_if->core_global_regs ->gusbcfg);
+ usbcfg.b.force_host_mode = 1;
+ dwc_write_reg32(&dwc_otg_device->core_if->core_global_regs ->gusbcfg, usbcfg.d32);
+#endif
+ retval = dwc_otg_hcd_init(&_dev->dev, dwc_otg_device);
+ if (retval != 0) {
+ DWC_ERROR("dwc_otg_hcd_init failed\n");
+ dwc_otg_device->hcd = NULL;
+ goto fail;
+ }
+#endif // DWC_DEVICE_ONLY
+
+ /*
+ * Enable the global interrupt after all the interrupt
+ * handlers are installed.
+ */
+ dwc_otg_enable_global_interrupts( dwc_otg_device->core_if );
+#if 0 /*fscz*/
+ usbcfg.d32 = dwc_read_reg32(&dwc_otg_device->core_if->core_global_regs ->gusbcfg);
+ usbcfg.b.force_host_mode = 0;
+ dwc_write_reg32(&dwc_otg_device->core_if->core_global_regs ->gusbcfg, usbcfg.d32);
+#endif
+
+
+ return 0;
+
+fail:
+ dwc_otg_driver_remove(_dev);
+ return retval;
+}
+
+/**
+ * This structure defines the methods to be called by a bus driver
+ * during the lifecycle of a device on that bus. Both drivers and
+ * devices are registered with a bus driver. The bus driver matches
+ * devices to drivers based on information in the device and driver
+ * structures.
+ *
+ * The probe function is called when the bus driver matches a device
+ * to this driver. The remove function is called when a device is
+ * unregistered with the bus driver.
+ */
+struct platform_driver dwc_otg_driver = {
+ .probe = dwc_otg_driver_probe,
+ .remove = dwc_otg_driver_remove,
+// .suspend = dwc_otg_driver_suspend,
+// .resume = dwc_otg_driver_resume,
+ .driver = {
+ .name = dwc_driver_name,
+ .owner = THIS_MODULE,
+ },
+};
+EXPORT_SYMBOL(dwc_otg_driver);
+
+/**
+ * This function is called when the dwc_otg_driver is installed with the
+ * insmod command. It registers the dwc_otg_driver structure with the
+ * appropriate bus driver. This will cause the dwc_otg_driver_probe function
+ * to be called. In addition, the bus driver will automatically expose
+ * attributes defined for the device and driver in the special sysfs file
+ * system.
+ *
+ * @return
+ */
+static int __init dwc_otg_init(void)
+{
+ int retval = 0;
+
+ printk(KERN_INFO "%s: version %s\n", dwc_driver_name, DWC_DRIVER_VERSION);
+
+ // ifxmips setup
+ retval = ifx_usb_hc_init(dwc_iomem_base, dwc_irq);
+ if (retval < 0)
+ {
+ printk(KERN_ERR "%s retval=%d\n", __func__, retval);
+ return retval;
+ }
+ dwc_otg_power_on(); // ifx only!!
+
+
+ retval = platform_driver_register(&dwc_otg_driver);
+
+ if (retval < 0) {
+ printk(KERN_ERR "%s retval=%d\n", __func__, retval);
+ goto error1;
+ }
+
+ retval = driver_create_file(&dwc_otg_driver.driver, &driver_attr_version);
+ if (retval < 0)
+ {
+ printk(KERN_ERR "%s retval=%d\n", __func__, retval);
+ goto error2;
+ }
+ retval = driver_create_file(&dwc_otg_driver.driver, &driver_attr_debuglevel);
+ if (retval < 0)
+ {
+ printk(KERN_ERR "%s retval=%d\n", __func__, retval);
+ goto error3;
+ }
+ return retval;
+
+
+error3:
+ driver_remove_file(&dwc_otg_driver.driver, &driver_attr_version);
+error2:
+ driver_unregister(&dwc_otg_driver.driver);
+error1:
+ ifx_usb_hc_remove();
+ return retval;
+}
+module_init(dwc_otg_init);
+
+/**
+ * This function is called when the driver is removed from the kernel
+ * with the rmmod command. The driver unregisters itself with its bus
+ * driver.
+ *
+ */
+static void __exit dwc_otg_cleanup(void)
+{
+ printk(KERN_DEBUG "dwc_otg_cleanup()\n");
+
+ driver_remove_file(&dwc_otg_driver.driver, &driver_attr_debuglevel);
+ driver_remove_file(&dwc_otg_driver.driver, &driver_attr_version);
+
+ platform_driver_unregister(&dwc_otg_driver);
+ ifx_usb_hc_remove();
+
+ printk(KERN_INFO "%s module removed\n", dwc_driver_name);
+}
+module_exit(dwc_otg_cleanup);
+
+MODULE_DESCRIPTION(DWC_DRIVER_DESC);
+MODULE_AUTHOR("Synopsys Inc.");
+MODULE_LICENSE("GPL");
+
+module_param_named(otg_cap, dwc_otg_module_params.otg_cap, int, 0444);
+MODULE_PARM_DESC(otg_cap, "OTG Capabilities 0=HNP&SRP 1=SRP Only 2=None");
+module_param_named(opt, dwc_otg_module_params.opt, int, 0444);
+MODULE_PARM_DESC(opt, "OPT Mode");
+module_param_named(dma_enable, dwc_otg_module_params.dma_enable, int, 0444);
+MODULE_PARM_DESC(dma_enable, "DMA Mode 0=Slave 1=DMA enabled");
+module_param_named(dma_burst_size, dwc_otg_module_params.dma_burst_size, int, 0444);
+MODULE_PARM_DESC(dma_burst_size, "DMA Burst Size 1, 4, 8, 16, 32, 64, 128, 256");
+module_param_named(speed, dwc_otg_module_params.speed, int, 0444);
+MODULE_PARM_DESC(speed, "Speed 0=High Speed 1=Full Speed");
+module_param_named(host_support_fs_ls_low_power, dwc_otg_module_params.host_support_fs_ls_low_power, int, 0444);
+MODULE_PARM_DESC(host_support_fs_ls_low_power, "Support Low Power w/FS or LS 0=Support 1=Don't Support");
+module_param_named(host_ls_low_power_phy_clk, dwc_otg_module_params.host_ls_low_power_phy_clk, int, 0444);
+MODULE_PARM_DESC(host_ls_low_power_phy_clk, "Low Speed Low Power Clock 0=48Mhz 1=6Mhz");
+module_param_named(enable_dynamic_fifo, dwc_otg_module_params.enable_dynamic_fifo, int, 0444);
+MODULE_PARM_DESC(enable_dynamic_fifo, "0=cC Setting 1=Allow Dynamic Sizing");
+module_param_named(data_fifo_size, dwc_otg_module_params.data_fifo_size, int, 0444);
+MODULE_PARM_DESC(data_fifo_size, "Total number of words in the data FIFO memory 32-32768");
+module_param_named(dev_rx_fifo_size, dwc_otg_module_params.dev_rx_fifo_size, int, 0444);
+MODULE_PARM_DESC(dev_rx_fifo_size, "Number of words in the Rx FIFO 16-32768");
+module_param_named(dev_nperio_tx_fifo_size, dwc_otg_module_params.dev_nperio_tx_fifo_size, int, 0444);
+MODULE_PARM_DESC(dev_nperio_tx_fifo_size, "Number of words in the non-periodic Tx FIFO 16-32768");
+module_param_named(dev_perio_tx_fifo_size_1, dwc_otg_module_params.dev_perio_tx_fifo_size[0], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_1, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(dev_perio_tx_fifo_size_2, dwc_otg_module_params.dev_perio_tx_fifo_size[1], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_2, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(dev_perio_tx_fifo_size_3, dwc_otg_module_params.dev_perio_tx_fifo_size[2], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_3, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(dev_perio_tx_fifo_size_4, dwc_otg_module_params.dev_perio_tx_fifo_size[3], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_4, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(dev_perio_tx_fifo_size_5, dwc_otg_module_params.dev_perio_tx_fifo_size[4], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_5, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(dev_perio_tx_fifo_size_6, dwc_otg_module_params.dev_perio_tx_fifo_size[5], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_6, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(dev_perio_tx_fifo_size_7, dwc_otg_module_params.dev_perio_tx_fifo_size[6], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_7, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(dev_perio_tx_fifo_size_8, dwc_otg_module_params.dev_perio_tx_fifo_size[7], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_8, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(dev_perio_tx_fifo_size_9, dwc_otg_module_params.dev_perio_tx_fifo_size[8], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_9, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(dev_perio_tx_fifo_size_10, dwc_otg_module_params.dev_perio_tx_fifo_size[9], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_10, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(dev_perio_tx_fifo_size_11, dwc_otg_module_params.dev_perio_tx_fifo_size[10], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_11, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(dev_perio_tx_fifo_size_12, dwc_otg_module_params.dev_perio_tx_fifo_size[11], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_12, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(dev_perio_tx_fifo_size_13, dwc_otg_module_params.dev_perio_tx_fifo_size[12], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_13, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(dev_perio_tx_fifo_size_14, dwc_otg_module_params.dev_perio_tx_fifo_size[13], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_14, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(dev_perio_tx_fifo_size_15, dwc_otg_module_params.dev_perio_tx_fifo_size[14], int, 0444);
+MODULE_PARM_DESC(dev_perio_tx_fifo_size_15, "Number of words in the periodic Tx FIFO 4-768");
+module_param_named(host_rx_fifo_size, dwc_otg_module_params.host_rx_fifo_size, int, 0444);
+MODULE_PARM_DESC(host_rx_fifo_size, "Number of words in the Rx FIFO 16-32768");
+module_param_named(host_nperio_tx_fifo_size, dwc_otg_module_params.host_nperio_tx_fifo_size, int, 0444);
+MODULE_PARM_DESC(host_nperio_tx_fifo_size, "Number of words in the non-periodic Tx FIFO 16-32768");
+module_param_named(host_perio_tx_fifo_size, dwc_otg_module_params.host_perio_tx_fifo_size, int, 0444);
+MODULE_PARM_DESC(host_perio_tx_fifo_size, "Number of words in the host periodic Tx FIFO 16-32768");
+module_param_named(max_transfer_size, dwc_otg_module_params.max_transfer_size, int, 0444);
+/** @todo Set the max to 512K, modify checks */
+MODULE_PARM_DESC(max_transfer_size, "The maximum transfer size supported in bytes 2047-65535");
+module_param_named(max_packet_count, dwc_otg_module_params.max_packet_count, int, 0444);
+MODULE_PARM_DESC(max_packet_count, "The maximum number of packets in a transfer 15-511");
+module_param_named(host_channels, dwc_otg_module_params.host_channels, int, 0444);
+MODULE_PARM_DESC(host_channels, "The number of host channel registers to use 1-16");
+module_param_named(dev_endpoints, dwc_otg_module_params.dev_endpoints, int, 0444);
+MODULE_PARM_DESC(dev_endpoints, "The number of endpoints in addition to EP0 available for device mode 1-15");
+module_param_named(phy_type, dwc_otg_module_params.phy_type, int, 0444);
+MODULE_PARM_DESC(phy_type, "0=Reserved 1=UTMI+ 2=ULPI");
+module_param_named(phy_utmi_width, dwc_otg_module_params.phy_utmi_width, int, 0444);
+MODULE_PARM_DESC(phy_utmi_width, "Specifies the UTMI+ Data Width 8 or 16 bits");
+module_param_named(phy_ulpi_ddr, dwc_otg_module_params.phy_ulpi_ddr, int, 0444);
+MODULE_PARM_DESC(phy_ulpi_ddr, "ULPI at double or single data rate 0=Single 1=Double");
+module_param_named(phy_ulpi_ext_vbus, dwc_otg_module_params.phy_ulpi_ext_vbus, int, 0444);
+MODULE_PARM_DESC(phy_ulpi_ext_vbus, "ULPI PHY using internal or external vbus 0=Internal");
+module_param_named(i2c_enable, dwc_otg_module_params.i2c_enable, int, 0444);
+MODULE_PARM_DESC(i2c_enable, "FS PHY Interface");
+module_param_named(ulpi_fs_ls, dwc_otg_module_params.ulpi_fs_ls, int, 0444);
+MODULE_PARM_DESC(ulpi_fs_ls, "ULPI PHY FS/LS mode only");
+module_param_named(ts_dline, dwc_otg_module_params.ts_dline, int, 0444);
+MODULE_PARM_DESC(ts_dline, "Term select Dline pulsing for all PHYs");
+module_param_named(debug, g_dbg_lvl, int, 0444);
+MODULE_PARM_DESC(debug, "0");
+module_param_named(en_multiple_tx_fifo,
+ dwc_otg_module_params.en_multiple_tx_fifo, int, 0444);
+MODULE_PARM_DESC(en_multiple_tx_fifo,
+ "Dedicated Non Periodic Tx FIFOs 0=disabled 1=enabled");
+module_param_named(dev_tx_fifo_size_1,
+ dwc_otg_module_params.dev_tx_fifo_size[0], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_1, "Number of words in the Tx FIFO 4-768");
+module_param_named(dev_tx_fifo_size_2,
+ dwc_otg_module_params.dev_tx_fifo_size[1], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_2, "Number of words in the Tx FIFO 4-768");
+module_param_named(dev_tx_fifo_size_3,
+ dwc_otg_module_params.dev_tx_fifo_size[2], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_3, "Number of words in the Tx FIFO 4-768");
+module_param_named(dev_tx_fifo_size_4,
+ dwc_otg_module_params.dev_tx_fifo_size[3], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_4, "Number of words in the Tx FIFO 4-768");
+module_param_named(dev_tx_fifo_size_5,
+ dwc_otg_module_params.dev_tx_fifo_size[4], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_5, "Number of words in the Tx FIFO 4-768");
+module_param_named(dev_tx_fifo_size_6,
+ dwc_otg_module_params.dev_tx_fifo_size[5], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_6, "Number of words in the Tx FIFO 4-768");
+module_param_named(dev_tx_fifo_size_7,
+ dwc_otg_module_params.dev_tx_fifo_size[6], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_7, "Number of words in the Tx FIFO 4-768");
+module_param_named(dev_tx_fifo_size_8,
+ dwc_otg_module_params.dev_tx_fifo_size[7], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_8, "Number of words in the Tx FIFO 4-768");
+module_param_named(dev_tx_fifo_size_9,
+ dwc_otg_module_params.dev_tx_fifo_size[8], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_9, "Number of words in the Tx FIFO 4-768");
+module_param_named(dev_tx_fifo_size_10,
+ dwc_otg_module_params.dev_tx_fifo_size[9], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_10, "Number of words in the Tx FIFO 4-768");
+module_param_named(dev_tx_fifo_size_11,
+ dwc_otg_module_params.dev_tx_fifo_size[10], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_11, "Number of words in the Tx FIFO 4-768");
+module_param_named(dev_tx_fifo_size_12,
+ dwc_otg_module_params.dev_tx_fifo_size[11], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_12, "Number of words in the Tx FIFO 4-768");
+module_param_named(dev_tx_fifo_size_13,
+ dwc_otg_module_params.dev_tx_fifo_size[12], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_13, "Number of words in the Tx FIFO 4-768");
+module_param_named(dev_tx_fifo_size_14,
+ dwc_otg_module_params.dev_tx_fifo_size[13], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_14, "Number of words in the Tx FIFO 4-768");
+module_param_named(dev_tx_fifo_size_15,
+ dwc_otg_module_params.dev_tx_fifo_size[14], int, 0444);
+MODULE_PARM_DESC(dev_tx_fifo_size_15, "Number of words in the Tx FIFO 4-768");
+module_param_named(thr_ctl, dwc_otg_module_params.thr_ctl, int, 0444);
+MODULE_PARM_DESC(thr_ctl, "Thresholding enable flag bit"
+ "0 - non ISO Tx thr., 1 - ISO Tx thr., 2 - Rx thr.- bit 0=disabled 1=enabled");
+module_param_named(tx_thr_length, dwc_otg_module_params.tx_thr_length, int, 0444);
+MODULE_PARM_DESC(tx_thr_length, "Tx Threshold length in 32 bit DWORDs");
+module_param_named(rx_thr_length, dwc_otg_module_params.rx_thr_length, int, 0444);
+MODULE_PARM_DESC(rx_thr_length, "Rx Threshold length in 32 bit DWORDs");
+module_param_named (iomem_base, dwc_iomem_base, ulong, 0444);
+MODULE_PARM_DESC (dwc_iomem_base, "The base address of the DWC_OTG register.");
+module_param_named (irq, dwc_irq, int, 0444);
+MODULE_PARM_DESC (dwc_irq, "The interrupt number");
+
+/** @page "Module Parameters"
+ *
+ * The following parameters may be specified when starting the module.
+ * These parameters define how the DWC_otg controller should be
+ * configured. Parameter values are passed to the CIL initialization
+ * function dwc_otg_cil_init
+ *
+ * Example: <code>modprobe dwc_otg speed=1 otg_cap=1</code>
+ *
+
+ <table>
+ <tr><td>Parameter Name</td><td>Meaning</td></tr>
+
+ <tr>
+ <td>otg_cap</td>
+ <td>Specifies the OTG capabilities. The driver will automatically detect the
+ value for this parameter if none is specified.
+ - 0: HNP and SRP capable (default, if available)
+ - 1: SRP Only capable
+ - 2: No HNP/SRP capable
+ </td></tr>
+
+ <tr>
+ <td>dma_enable</td>
+ <td>Specifies whether to use slave or DMA mode for accessing the data FIFOs.
+ The driver will automatically detect the value for this parameter if none is
+ specified.
+ - 0: Slave
+ - 1: DMA (default, if available)
+ </td></tr>
+
+ <tr>
+ <td>dma_burst_size</td>
+ <td>The DMA Burst size (applicable only for External DMA Mode).
+ - Values: 1, 4, 8 16, 32, 64, 128, 256 (default 32)
+ </td></tr>
+
+ <tr>
+ <td>speed</td>
+ <td>Specifies the maximum speed of operation in host and device mode. The
+ actual speed depends on the speed of the attached device and the value of
+ phy_type.
+ - 0: High Speed (default)
+ - 1: Full Speed
+ </td></tr>
+
+ <tr>
+ <td>host_support_fs_ls_low_power</td>
+ <td>Specifies whether low power mode is supported when attached to a Full
+ Speed or Low Speed device in host mode.
+ - 0: Don't support low power mode (default)
+ - 1: Support low power mode
+ </td></tr>
+
+ <tr>
+ <td>host_ls_low_power_phy_clk</td>
+ <td>Specifies the PHY clock rate in low power mode when connected to a Low
+ Speed device in host mode. This parameter is applicable only if
+ HOST_SUPPORT_FS_LS_LOW_POWER is enabled.
+ - 0: 48 MHz (default)
+ - 1: 6 MHz
+ </td></tr>
+
+ <tr>
+ <td>enable_dynamic_fifo</td>
+ <td> Specifies whether FIFOs may be resized by the driver software.
+ - 0: Use cC FIFO size parameters
+ - 1: Allow dynamic FIFO sizing (default)
+ </td></tr>
+
+ <tr>
+ <td>data_fifo_size</td>
+ <td>Total number of 4-byte words in the data FIFO memory. This memory
+ includes the Rx FIFO, non-periodic Tx FIFO, and periodic Tx FIFOs.
+ - Values: 32 to 32768 (default 8192)
+
+ Note: The total FIFO memory depth in the FPGA configuration is 8192.
+ </td></tr>
+
+ <tr>
+ <td>dev_rx_fifo_size</td>
+ <td>Number of 4-byte words in the Rx FIFO in device mode when dynamic
+ FIFO sizing is enabled.
+ - Values: 16 to 32768 (default 1064)
+ </td></tr>
+
+ <tr>
+ <td>dev_nperio_tx_fifo_size</td>
+ <td>Number of 4-byte words in the non-periodic Tx FIFO in device mode when
+ dynamic FIFO sizing is enabled.
+ - Values: 16 to 32768 (default 1024)
+ </td></tr>
+
+ <tr>
+ <td>dev_perio_tx_fifo_size_n (n = 1 to 15)</td>
+ <td>Number of 4-byte words in each of the periodic Tx FIFOs in device mode
+ when dynamic FIFO sizing is enabled.
+ - Values: 4 to 768 (default 256)
+ </td></tr>
+
+ <tr>
+ <td>host_rx_fifo_size</td>
+ <td>Number of 4-byte words in the Rx FIFO in host mode when dynamic FIFO
+ sizing is enabled.
+ - Values: 16 to 32768 (default 1024)
+ </td></tr>
+
+ <tr>
+ <td>host_nperio_tx_fifo_size</td>
+ <td>Number of 4-byte words in the non-periodic Tx FIFO in host mode when
+ dynamic FIFO sizing is enabled in the core.
+ - Values: 16 to 32768 (default 1024)
+ </td></tr>
+
+ <tr>
+ <td>host_perio_tx_fifo_size</td>
+ <td>Number of 4-byte words in the host periodic Tx FIFO when dynamic FIFO
+ sizing is enabled.
+ - Values: 16 to 32768 (default 1024)
+ </td></tr>
+
+ <tr>
+ <td>max_transfer_size</td>
+ <td>The maximum transfer size supported in bytes.
+ - Values: 2047 to 65,535 (default 65,535)
+ </td></tr>
+
+ <tr>
+ <td>max_packet_count</td>
+ <td>The maximum number of packets in a transfer.
+ - Values: 15 to 511 (default 511)
+ </td></tr>
+
+ <tr>
+ <td>host_channels</td>
+ <td>The number of host channel registers to use.
+ - Values: 1 to 16 (default 12)
+
+ Note: The FPGA configuration supports a maximum of 12 host channels.
+ </td></tr>
+
+ <tr>
+ <td>dev_endpoints</td>
+ <td>The number of endpoints in addition to EP0 available for device mode
+ operations.
+ - Values: 1 to 15 (default 6 IN and OUT)
+
+ Note: The FPGA configuration supports a maximum of 6 IN and OUT endpoints in
+ addition to EP0.
+ </td></tr>
+
+ <tr>
+ <td>phy_type</td>
+ <td>Specifies the type of PHY interface to use. By default, the driver will
+ automatically detect the phy_type.
+ - 0: Full Speed
+ - 1: UTMI+ (default, if available)
+ - 2: ULPI
+ </td></tr>
+
+ <tr>
+ <td>phy_utmi_width</td>
+ <td>Specifies the UTMI+ Data Width. This parameter is applicable for a
+ phy_type of UTMI+. Also, this parameter is applicable only if the
+ OTG_HSPHY_WIDTH cC parameter was set to "8 and 16 bits", meaning that the
+ core has been configured to work at either data path width.
+ - Values: 8 or 16 bits (default 16)
+ </td></tr>
+
+ <tr>
+ <td>phy_ulpi_ddr</td>
+ <td>Specifies whether the ULPI operates at double or single data rate. This
+ parameter is only applicable if phy_type is ULPI.
+ - 0: single data rate ULPI interface with 8 bit wide data bus (default)
+ - 1: double data rate ULPI interface with 4 bit wide data bus
+ </td></tr>
+
+ <tr>
+ <td>i2c_enable</td>
+ <td>Specifies whether to use the I2C interface for full speed PHY. This
+ parameter is only applicable if PHY_TYPE is FS.
+ - 0: Disabled (default)
+ - 1: Enabled
+ </td></tr>
+
+ <tr>
+ <td>otg_en_multiple_tx_fifo</td>
+ <td>Specifies whether dedicatedto tx fifos are enabled for non periodic IN EPs.
+ The driver will automatically detect the value for this parameter if none is
+ specified.
+ - 0: Disabled
+ - 1: Enabled (default, if available)
+ </td></tr>
+
+ <tr>
+ <td>dev_tx_fifo_size_n (n = 1 to 15)</td>
+ <td>Number of 4-byte words in each of the Tx FIFOs in device mode
+ when dynamic FIFO sizing is enabled.
+ - Values: 4 to 768 (default 256)
+ </td></tr>
+
+*/
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_driver.h
@@ -0,0 +1,84 @@
+/* ==========================================================================
+ * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/drivers/dwc_otg_driver.h $
+ * $Revision: 1.1.1.1 $
+ * $Date: 2009-04-17 06:15:34 $
+ * $Change: 510275 $
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+
+#if !defined(__DWC_OTG_DRIVER_H__)
+#define __DWC_OTG_DRIVER_H__
+
+/** @file
+ * This file contains the interface to the Linux driver.
+ */
+#include "dwc_otg_cil.h"
+
+/* Type declarations */
+struct dwc_otg_pcd;
+struct dwc_otg_hcd;
+
+/**
+ * This structure is a wrapper that encapsulates the driver components used to
+ * manage a single DWC_otg controller.
+ */
+typedef struct dwc_otg_device
+{
+ /** Base address returned from ioremap() */
+ void *base;
+
+ /** Pointer to the core interface structure. */
+ dwc_otg_core_if_t *core_if;
+
+ /** Register offset for Diagnostic API.*/
+ uint32_t reg_offset;
+
+ /** Pointer to the PCD structure. */
+ struct dwc_otg_pcd *pcd;
+
+ /** Pointer to the HCD structure. */
+ struct dwc_otg_hcd *hcd;
+
+ /** Flag to indicate whether the common IRQ handler is installed. */
+ uint8_t common_irq_installed;
+
+ /** Interrupt request number. */
+ unsigned int irq;
+
+ /** Physical address of Control and Status registers, used by
+ * release_mem_region().
+ */
+ resource_size_t phys_addr;
+
+ /** Length of memory region, used by release_mem_region(). */
+ unsigned long base_len;
+} dwc_otg_device_t;
+
+//#define dev_dbg(fake, format, arg...) printk(KERN_CRIT __FILE__ ":%d: " format "\n" , __LINE__, ## arg)
+
+#endif
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_hcd.c
@@ -0,0 +1,2870 @@
+/* ==========================================================================
+ * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/drivers/dwc_otg_hcd.c $
+ * $Revision: 1.1.1.1 $
+ * $Date: 2009-04-17 06:15:34 $
+ * $Change: 631780 $
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+#ifndef DWC_DEVICE_ONLY
+
+/**
+ * @file
+ *
+ * This file contains the implementation of the HCD. In Linux, the HCD
+ * implements the hc_driver API.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+
+#include <linux/device.h>
+
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/interrupt.h>
+#include <linux/string.h>
+
+#include <linux/dma-mapping.h>
+
+#include "dwc_otg_driver.h"
+#include "dwc_otg_hcd.h"
+#include "dwc_otg_regs.h"
+
+#include <asm/irq.h>
+#include "dwc_otg_ifx.h" // for Infineon platform specific.
+extern atomic_t release_later;
+
+static u64 dma_mask = DMA_BIT_MASK(32);
+
+static const char dwc_otg_hcd_name [] = "dwc_otg_hcd";
+static const struct hc_driver dwc_otg_hc_driver =
+{
+ .description = dwc_otg_hcd_name,
+ .product_desc = "DWC OTG Controller",
+ .hcd_priv_size = sizeof(dwc_otg_hcd_t),
+ .irq = dwc_otg_hcd_irq,
+ .flags = HCD_MEMORY | HCD_USB2,
+ //.reset =
+ .start = dwc_otg_hcd_start,
+ //.suspend =
+ //.resume =
+ .stop = dwc_otg_hcd_stop,
+ .urb_enqueue = dwc_otg_hcd_urb_enqueue,
+ .urb_dequeue = dwc_otg_hcd_urb_dequeue,
+ .endpoint_disable = dwc_otg_hcd_endpoint_disable,
+ .get_frame_number = dwc_otg_hcd_get_frame_number,
+ .hub_status_data = dwc_otg_hcd_hub_status_data,
+ .hub_control = dwc_otg_hcd_hub_control,
+ //.hub_suspend =
+ //.hub_resume =
+};
+
+
+/**
+ * Work queue function for starting the HCD when A-Cable is connected.
+ * The dwc_otg_hcd_start() must be called in a process context.
+ */
+static void hcd_start_func(struct work_struct *work)
+{
+ struct dwc_otg_hcd *priv =
+ container_of(work, struct dwc_otg_hcd, start_work);
+ struct usb_hcd *usb_hcd = (struct usb_hcd *)priv->_p;
+ DWC_DEBUGPL(DBG_HCDV, "%s() %p\n", __func__, usb_hcd);
+ if (usb_hcd) {
+ dwc_otg_hcd_start(usb_hcd);
+ }
+}
+
+
+/**
+ * HCD Callback function for starting the HCD when A-Cable is
+ * connected.
+ *
+ * @param _p void pointer to the <code>struct usb_hcd</code>
+ */
+static int32_t dwc_otg_hcd_start_cb(void *_p)
+{
+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(_p);
+ dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if;
+ hprt0_data_t hprt0;
+ if (core_if->op_state == B_HOST) {
+ /*
+ * Reset the port. During a HNP mode switch the reset
+ * needs to occur within 1ms and have a duration of at
+ * least 50ms.
+ */
+ hprt0.d32 = dwc_otg_read_hprt0 (core_if);
+ hprt0.b.prtrst = 1;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+ ((struct usb_hcd *)_p)->self.is_b_host = 1;
+ } else {
+ ((struct usb_hcd *)_p)->self.is_b_host = 0;
+ }
+ /* Need to start the HCD in a non-interrupt context. */
+ INIT_WORK(&dwc_otg_hcd->start_work, hcd_start_func);
+ dwc_otg_hcd->_p = _p;
+ schedule_work(&dwc_otg_hcd->start_work);
+ return 1;
+}
+
+
+/**
+ * HCD Callback function for stopping the HCD.
+ *
+ * @param _p void pointer to the <code>struct usb_hcd</code>
+ */
+static int32_t dwc_otg_hcd_stop_cb( void *_p )
+{
+ struct usb_hcd *usb_hcd = (struct usb_hcd *)_p;
+ DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, _p);
+ dwc_otg_hcd_stop( usb_hcd );
+ return 1;
+}
+static void del_xfer_timers(dwc_otg_hcd_t *_hcd)
+{
+#ifdef DEBUG
+ int i;
+ int num_channels = _hcd->core_if->core_params->host_channels;
+ for (i = 0; i < num_channels; i++) {
+ del_timer(&_hcd->core_if->hc_xfer_timer[i]);
+ }
+#endif /* */
+}
+
+static void del_timers(dwc_otg_hcd_t *_hcd)
+{
+ del_xfer_timers(_hcd);
+ del_timer(&_hcd->conn_timer);
+}
+
+/**
+ * Processes all the URBs in a single list of QHs. Completes them with
+ * -ETIMEDOUT and frees the QTD.
+ */
+static void kill_urbs_in_qh_list(dwc_otg_hcd_t * _hcd,
+ struct list_head *_qh_list)
+{
+ struct list_head *qh_item;
+ dwc_otg_qh_t *qh;
+ struct list_head *qtd_item;
+ dwc_otg_qtd_t *qtd;
+
+ list_for_each(qh_item, _qh_list) {
+ qh = list_entry(qh_item, dwc_otg_qh_t, qh_list_entry);
+ for (qtd_item = qh->qtd_list.next; qtd_item != &qh->qtd_list;
+ qtd_item = qh->qtd_list.next) {
+ qtd = list_entry(qtd_item, dwc_otg_qtd_t, qtd_list_entry);
+ if (qtd->urb != NULL) {
+ dwc_otg_hcd_complete_urb(_hcd, qtd->urb,-ETIMEDOUT);
+ }
+ dwc_otg_hcd_qtd_remove_and_free(qtd);
+ }
+ }
+}
+
+/**
+ * Responds with an error status of ETIMEDOUT to all URBs in the non-periodic
+ * and periodic schedules. The QTD associated with each URB is removed from
+ * the schedule and freed. This function may be called when a disconnect is
+ * detected or when the HCD is being stopped.
+ */
+static void kill_all_urbs(dwc_otg_hcd_t *_hcd)
+{
+ kill_urbs_in_qh_list(_hcd, &_hcd->non_periodic_sched_deferred);
+ kill_urbs_in_qh_list(_hcd, &_hcd->non_periodic_sched_inactive);
+ kill_urbs_in_qh_list(_hcd, &_hcd->non_periodic_sched_active);
+ kill_urbs_in_qh_list(_hcd, &_hcd->periodic_sched_inactive);
+ kill_urbs_in_qh_list(_hcd, &_hcd->periodic_sched_ready);
+ kill_urbs_in_qh_list(_hcd, &_hcd->periodic_sched_assigned);
+ kill_urbs_in_qh_list(_hcd, &_hcd->periodic_sched_queued);
+}
+
+/**
+ * HCD Callback function for disconnect of the HCD.
+ *
+ * @param _p void pointer to the <code>struct usb_hcd</code>
+ */
+static int32_t dwc_otg_hcd_disconnect_cb( void *_p )
+{
+ gintsts_data_t intr;
+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd (_p);
+
+ DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, _p);
+
+ /*
+ * Set status flags for the hub driver.
+ */
+ dwc_otg_hcd->flags.b.port_connect_status_change = 1;
+ dwc_otg_hcd->flags.b.port_connect_status = 0;
+
+ /*
+ * Shutdown any transfers in process by clearing the Tx FIFO Empty
+ * interrupt mask and status bits and disabling subsequent host
+ * channel interrupts.
+ */
+ intr.d32 = 0;
+ intr.b.nptxfempty = 1;
+ intr.b.ptxfempty = 1;
+ intr.b.hcintr = 1;
+ dwc_modify_reg32 (&dwc_otg_hcd->core_if->core_global_regs->gintmsk, intr.d32, 0);
+ dwc_modify_reg32 (&dwc_otg_hcd->core_if->core_global_regs->gintsts, intr.d32, 0);
+
+ del_timers(dwc_otg_hcd);
+
+ /*
+ * Turn off the vbus power only if the core has transitioned to device
+ * mode. If still in host mode, need to keep power on to detect a
+ * reconnection.
+ */
+ if (dwc_otg_is_device_mode(dwc_otg_hcd->core_if)) {
+ if (dwc_otg_hcd->core_if->op_state != A_SUSPEND) {
+ hprt0_data_t hprt0 = { .d32=0 };
+ DWC_PRINT("Disconnect: PortPower off\n");
+ hprt0.b.prtpwr = 0;
+ dwc_write_reg32(dwc_otg_hcd->core_if->host_if->hprt0, hprt0.d32);
+ }
+
+ dwc_otg_disable_host_interrupts( dwc_otg_hcd->core_if );
+ }
+
+ /* Respond with an error status to all URBs in the schedule. */
+ kill_all_urbs(dwc_otg_hcd);
+
+ if (dwc_otg_is_host_mode(dwc_otg_hcd->core_if)) {
+ /* Clean up any host channels that were in use. */
+ int num_channels;
+ int i;
+ dwc_hc_t *channel;
+ dwc_otg_hc_regs_t *hc_regs;
+ hcchar_data_t hcchar;
+
+ num_channels = dwc_otg_hcd->core_if->core_params->host_channels;
+
+ if (!dwc_otg_hcd->core_if->dma_enable) {
+ /* Flush out any channel requests in slave mode. */
+ for (i = 0; i < num_channels; i++) {
+ channel = dwc_otg_hcd->hc_ptr_array[i];
+ if (list_empty(&channel->hc_list_entry)) {
+ hc_regs = dwc_otg_hcd->core_if->host_if->hc_regs[i];
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ if (hcchar.b.chen) {
+ hcchar.b.chen = 0;
+ hcchar.b.chdis = 1;
+ hcchar.b.epdir = 0;
+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32);
+ }
+ }
+ }
+ }
+
+ for (i = 0; i < num_channels; i++) {
+ channel = dwc_otg_hcd->hc_ptr_array[i];
+ if (list_empty(&channel->hc_list_entry)) {
+ hc_regs = dwc_otg_hcd->core_if->host_if->hc_regs[i];
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ if (hcchar.b.chen) {
+ /* Halt the channel. */
+ hcchar.b.chdis = 1;
+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32);
+ }
+
+ dwc_otg_hc_cleanup(dwc_otg_hcd->core_if, channel);
+ list_add_tail(&channel->hc_list_entry,
+ &dwc_otg_hcd->free_hc_list);
+ }
+ }
+ }
+
+ /* A disconnect will end the session so the B-Device is no
+ * longer a B-host. */
+ ((struct usb_hcd *)_p)->self.is_b_host = 0;
+
+ return 1;
+}
+
+/**
+ * Connection timeout function. An OTG host is required to display a
+ * message if the device does not connect within 10 seconds.
+ */
+void dwc_otg_hcd_connect_timeout( unsigned long _ptr )
+{
+ DWC_DEBUGPL(DBG_HCDV, "%s(%x)\n", __func__, (int)_ptr);
+ DWC_PRINT( "Connect Timeout\n");
+ DWC_ERROR( "Device Not Connected/Responding\n" );
+}
+
+/**
+ * Start the connection timer. An OTG host is required to display a
+ * message if the device does not connect within 10 seconds. The
+ * timer is deleted if a port connect interrupt occurs before the
+ * timer expires.
+ */
+static void dwc_otg_hcd_start_connect_timer( dwc_otg_hcd_t *_hcd)
+{
+ init_timer( &_hcd->conn_timer );
+ _hcd->conn_timer.function = dwc_otg_hcd_connect_timeout;
+ _hcd->conn_timer.data = (unsigned long)0;
+ _hcd->conn_timer.expires = jiffies + (HZ*10);
+ add_timer( &_hcd->conn_timer );
+}
+
+/**
+ * HCD Callback function for disconnect of the HCD.
+ *
+ * @param _p void pointer to the <code>struct usb_hcd</code>
+ */
+static int32_t dwc_otg_hcd_session_start_cb( void *_p )
+{
+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd (_p);
+ DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, _p);
+ dwc_otg_hcd_start_connect_timer( dwc_otg_hcd );
+ return 1;
+}
+
+/**
+ * HCD Callback structure for handling mode switching.
+ */
+static dwc_otg_cil_callbacks_t hcd_cil_callbacks = {
+ .start = dwc_otg_hcd_start_cb,
+ .stop = dwc_otg_hcd_stop_cb,
+ .disconnect = dwc_otg_hcd_disconnect_cb,
+ .session_start = dwc_otg_hcd_session_start_cb,
+ .p = 0,
+};
+
+
+/**
+ * Reset tasklet function
+ */
+static void reset_tasklet_func (unsigned long data)
+{
+ dwc_otg_hcd_t *dwc_otg_hcd = (dwc_otg_hcd_t*)data;
+ dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if;
+ hprt0_data_t hprt0;
+
+ DWC_DEBUGPL(DBG_HCDV, "USB RESET tasklet called\n");
+
+ hprt0.d32 = dwc_otg_read_hprt0 (core_if);
+ hprt0.b.prtrst = 1;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+ mdelay (60);
+
+ hprt0.b.prtrst = 0;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+ dwc_otg_hcd->flags.b.port_reset_change = 1;
+
+ return;
+}
+
+static struct tasklet_struct reset_tasklet = {
+ .next = NULL,
+ .state = 0,
+ .count = ATOMIC_INIT(0),
+ .func = reset_tasklet_func,
+ .data = 0,
+};
+
+/**
+ * Initializes the HCD. This function allocates memory for and initializes the
+ * static parts of the usb_hcd and dwc_otg_hcd structures. It also registers the
+ * USB bus with the core and calls the hc_driver->start() function. It returns
+ * a negative error on failure.
+ */
+int init_hcd_usecs(dwc_otg_hcd_t *_hcd);
+
+int __devinit dwc_otg_hcd_init(struct device *_dev, dwc_otg_device_t * dwc_otg_device)
+{
+ struct usb_hcd *hcd = NULL;
+ dwc_otg_hcd_t *dwc_otg_hcd = NULL;
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+
+ int num_channels;
+ int i;
+ dwc_hc_t *channel;
+
+ int retval = 0;
+
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD INIT\n");
+
+ /*
+ * Allocate memory for the base HCD plus the DWC OTG HCD.
+ * Initialize the base HCD.
+ */
+ hcd = usb_create_hcd(&dwc_otg_hc_driver, _dev, dev_name(_dev));
+ if (hcd == NULL) {
+ retval = -ENOMEM;
+ goto error1;
+ }
+ dev_set_drvdata(_dev, dwc_otg_device); /* fscz restore */
+ hcd->regs = otg_dev->base;
+ hcd->rsrc_start = (int)otg_dev->base;
+
+ hcd->self.otg_port = 1;
+
+ /* Initialize the DWC OTG HCD. */
+ dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd);
+ dwc_otg_hcd->core_if = otg_dev->core_if;
+ otg_dev->hcd = dwc_otg_hcd;
+
+ /* Register the HCD CIL Callbacks */
+ dwc_otg_cil_register_hcd_callbacks(otg_dev->core_if,
+ &hcd_cil_callbacks, hcd);
+
+ /* Initialize the non-periodic schedule. */
+ INIT_LIST_HEAD(&dwc_otg_hcd->non_periodic_sched_inactive);
+ INIT_LIST_HEAD(&dwc_otg_hcd->non_periodic_sched_active);
+ INIT_LIST_HEAD(&dwc_otg_hcd->non_periodic_sched_deferred);
+
+ /* Initialize the periodic schedule. */
+ INIT_LIST_HEAD(&dwc_otg_hcd->periodic_sched_inactive);
+ INIT_LIST_HEAD(&dwc_otg_hcd->periodic_sched_ready);
+ INIT_LIST_HEAD(&dwc_otg_hcd->periodic_sched_assigned);
+ INIT_LIST_HEAD(&dwc_otg_hcd->periodic_sched_queued);
+
+ /*
+ * Create a host channel descriptor for each host channel implemented
+ * in the controller. Initialize the channel descriptor array.
+ */
+ INIT_LIST_HEAD(&dwc_otg_hcd->free_hc_list);
+ num_channels = dwc_otg_hcd->core_if->core_params->host_channels;
+ for (i = 0; i < num_channels; i++) {
+ channel = kmalloc(sizeof(dwc_hc_t), GFP_KERNEL);
+ if (channel == NULL) {
+ retval = -ENOMEM;
+ DWC_ERROR("%s: host channel allocation failed\n", __func__);
+ goto error2;
+ }
+ memset(channel, 0, sizeof(dwc_hc_t));
+ channel->hc_num = i;
+ dwc_otg_hcd->hc_ptr_array[i] = channel;
+#ifdef DEBUG
+ init_timer(&dwc_otg_hcd->core_if->hc_xfer_timer[i]);
+#endif
+
+ DWC_DEBUGPL(DBG_HCDV, "HCD Added channel #%d, hc=%p\n", i, channel);
+ }
+
+ /* Initialize the Connection timeout timer. */
+ init_timer( &dwc_otg_hcd->conn_timer );
+
+ /* Initialize reset tasklet. */
+ reset_tasklet.data = (unsigned long) dwc_otg_hcd;
+ dwc_otg_hcd->reset_tasklet = &reset_tasklet;
+
+ /* Set device flags indicating whether the HCD supports DMA. */
+ if (otg_dev->core_if->dma_enable) {
+ DWC_PRINT("Using DMA mode\n");
+ //_dev->dma_mask = (void *)~0;
+ //_dev->coherent_dma_mask = ~0;
+ _dev->dma_mask = &dma_mask;
+ _dev->coherent_dma_mask = DMA_BIT_MASK(32);
+ } else {
+ DWC_PRINT("Using Slave mode\n");
+ _dev->dma_mask = (void *)0;
+ _dev->coherent_dma_mask = 0;
+ }
+
+ init_hcd_usecs(dwc_otg_hcd);
+ /*
+ * Finish generic HCD initialization and start the HCD. This function
+ * allocates the DMA buffer pool, registers the USB bus, requests the
+ * IRQ line, and calls dwc_otg_hcd_start method.
+ */
+ retval = usb_add_hcd(hcd, otg_dev->irq, IRQF_SHARED);
+ if (retval < 0) {
+ goto error2;
+ }
+
+ /*
+ * Allocate space for storing data on status transactions. Normally no
+ * data is sent, but this space acts as a bit bucket. This must be
+ * done after usb_add_hcd since that function allocates the DMA buffer
+ * pool.
+ */
+ if (otg_dev->core_if->dma_enable) {
+ dwc_otg_hcd->status_buf =
+ dma_alloc_coherent(_dev,
+ DWC_OTG_HCD_STATUS_BUF_SIZE,
+ &dwc_otg_hcd->status_buf_dma,
+ GFP_KERNEL | GFP_DMA);
+ } else {
+ dwc_otg_hcd->status_buf = kmalloc(DWC_OTG_HCD_STATUS_BUF_SIZE,
+ GFP_KERNEL);
+ }
+ if (dwc_otg_hcd->status_buf == NULL) {
+ retval = -ENOMEM;
+ DWC_ERROR("%s: status_buf allocation failed\n", __func__);
+ goto error3;
+ }
+
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Initialized HCD, bus=%s, usbbus=%d\n",
+ dev_name(_dev), hcd->self.busnum);
+
+ return 0;
+
+ /* Error conditions */
+error3:
+ usb_remove_hcd(hcd);
+error2:
+ dwc_otg_hcd_free(hcd);
+ usb_put_hcd(hcd);
+error1:
+ return retval;
+}
+
+/**
+ * Removes the HCD.
+ * Frees memory and resources associated with the HCD and deregisters the bus.
+ */
+void dwc_otg_hcd_remove(struct device *_dev)
+{
+ dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);
+ dwc_otg_hcd_t *dwc_otg_hcd = otg_dev->hcd;
+ struct usb_hcd *hcd = dwc_otg_hcd_to_hcd(dwc_otg_hcd);
+
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD REMOVE\n");
+
+ /* Turn off all interrupts */
+ dwc_write_reg32 (&dwc_otg_hcd->core_if->core_global_regs->gintmsk, 0);
+ dwc_modify_reg32 (&dwc_otg_hcd->core_if->core_global_regs->gahbcfg, 1, 0);
+
+ usb_remove_hcd(hcd);
+
+ dwc_otg_hcd_free(hcd);
+
+ usb_put_hcd(hcd);
+
+ return;
+}
+
+
+/* =========================================================================
+ * Linux HC Driver Functions
+ * ========================================================================= */
+
+/**
+ * Initializes dynamic portions of the DWC_otg HCD state.
+ */
+static void hcd_reinit(dwc_otg_hcd_t *_hcd)
+{
+ struct list_head *item;
+ int num_channels;
+ int i;
+ dwc_hc_t *channel;
+
+ _hcd->flags.d32 = 0;
+
+ _hcd->non_periodic_qh_ptr = &_hcd->non_periodic_sched_active;
+ _hcd->available_host_channels = _hcd->core_if->core_params->host_channels;
+
+ /*
+ * Put all channels in the free channel list and clean up channel
+ * states.
+ */
+ item = _hcd->free_hc_list.next;
+ while (item != &_hcd->free_hc_list) {
+ list_del(item);
+ item = _hcd->free_hc_list.next;
+ }
+ num_channels = _hcd->core_if->core_params->host_channels;
+ for (i = 0; i < num_channels; i++) {
+ channel = _hcd->hc_ptr_array[i];
+ list_add_tail(&channel->hc_list_entry, &_hcd->free_hc_list);
+ dwc_otg_hc_cleanup(_hcd->core_if, channel);
+ }
+
+ /* Initialize the DWC core for host mode operation. */
+ dwc_otg_core_host_init(_hcd->core_if);
+}
+
+/** Initializes the DWC_otg controller and its root hub and prepares it for host
+ * mode operation. Activates the root port. Returns 0 on success and a negative
+ * error code on failure. */
+int dwc_otg_hcd_start(struct usb_hcd *_hcd)
+{
+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd (_hcd);
+ dwc_otg_core_if_t * core_if = dwc_otg_hcd->core_if;
+ struct usb_bus *bus;
+
+ // int retval;
+
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD START\n");
+
+ bus = hcd_to_bus(_hcd);
+
+ /* Initialize the bus state. If the core is in Device Mode
+ * HALT the USB bus and return. */
+ if (dwc_otg_is_device_mode (core_if)) {
+ _hcd->state = HC_STATE_HALT;
+ return 0;
+ }
+ _hcd->state = HC_STATE_RUNNING;
+
+ /* Initialize and connect root hub if one is not already attached */
+ if (bus->root_hub) {
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Has Root Hub\n");
+ /* Inform the HUB driver to resume. */
+ usb_hcd_resume_root_hub(_hcd);
+ }
+ else {
+#if 0
+ struct usb_device *udev;
+ udev = usb_alloc_dev(NULL, bus, 0);
+ if (!udev) {
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Error udev alloc\n");
+ return -ENODEV;
+ }
+ udev->speed = USB_SPEED_HIGH;
+ /* Not needed - VJ
+ if ((retval = usb_hcd_register_root_hub(udev, _hcd)) != 0) {
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Error registering %d\n", retval);
+ return -ENODEV;
+ }
+ */
+#else
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Error udev alloc\n");
+#endif
+ }
+
+ hcd_reinit(dwc_otg_hcd);
+
+ return 0;
+}
+
+static void qh_list_free(dwc_otg_hcd_t *_hcd, struct list_head *_qh_list)
+{
+ struct list_head *item;
+ dwc_otg_qh_t *qh;
+
+ if (_qh_list->next == NULL) {
+ /* The list hasn't been initialized yet. */
+ return;
+ }
+
+ /* Ensure there are no QTDs or URBs left. */
+ kill_urbs_in_qh_list(_hcd, _qh_list);
+
+ for (item = _qh_list->next; item != _qh_list; item = _qh_list->next) {
+ qh = list_entry(item, dwc_otg_qh_t, qh_list_entry);
+ dwc_otg_hcd_qh_remove_and_free(_hcd, qh);
+ }
+}
+
+/**
+ * Halts the DWC_otg host mode operations in a clean manner. USB transfers are
+ * stopped.
+ */
+void dwc_otg_hcd_stop(struct usb_hcd *_hcd)
+{
+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd (_hcd);
+ hprt0_data_t hprt0 = { .d32=0 };
+
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD STOP\n");
+
+ /* Turn off all host-specific interrupts. */
+ dwc_otg_disable_host_interrupts( dwc_otg_hcd->core_if );
+
+ /*
+ * The root hub should be disconnected before this function is called.
+ * The disconnect will clear the QTD lists (via ..._hcd_urb_dequeue)
+ * and the QH lists (via ..._hcd_endpoint_disable).
+ */
+
+ /* Turn off the vbus power */
+ DWC_PRINT("PortPower off\n");
+ hprt0.b.prtpwr = 0;
+ dwc_write_reg32(dwc_otg_hcd->core_if->host_if->hprt0, hprt0.d32);
+
+ return;
+}
+
+
+/** Returns the current frame number. */
+int dwc_otg_hcd_get_frame_number(struct usb_hcd *_hcd)
+{
+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(_hcd);
+ hfnum_data_t hfnum;
+
+ hfnum.d32 = dwc_read_reg32(&dwc_otg_hcd->core_if->
+ host_if->host_global_regs->hfnum);
+
+#ifdef DEBUG_SOF
+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD GET FRAME NUMBER %d\n", hfnum.b.frnum);
+#endif
+ return hfnum.b.frnum;
+}
+
+/**
+ * Frees secondary storage associated with the dwc_otg_hcd structure contained
+ * in the struct usb_hcd field.
+ */
+void dwc_otg_hcd_free(struct usb_hcd *_hcd)
+{
+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(_hcd);
+ int i;
+
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD FREE\n");
+
+ del_timers(dwc_otg_hcd);
+
+ /* Free memory for QH/QTD lists */
+ qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->non_periodic_sched_inactive);
+ qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->non_periodic_sched_deferred);
+ qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->non_periodic_sched_active);
+ qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_inactive);
+ qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_ready);
+ qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_assigned);
+ qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_queued);
+
+ /* Free memory for the host channels. */
+ for (i = 0; i < MAX_EPS_CHANNELS; i++) {
+ dwc_hc_t *hc = dwc_otg_hcd->hc_ptr_array[i];
+ if (hc != NULL) {
+ DWC_DEBUGPL(DBG_HCDV, "HCD Free channel #%i, hc=%p\n", i, hc);
+ kfree(hc);
+ }
+ }
+
+ if (dwc_otg_hcd->core_if->dma_enable) {
+ if (dwc_otg_hcd->status_buf_dma) {
+ dma_free_coherent(_hcd->self.controller,
+ DWC_OTG_HCD_STATUS_BUF_SIZE,
+ dwc_otg_hcd->status_buf,
+ dwc_otg_hcd->status_buf_dma);
+ }
+ } else if (dwc_otg_hcd->status_buf != NULL) {
+ kfree(dwc_otg_hcd->status_buf);
+ }
+
+ return;
+}
+
+
+#ifdef DEBUG
+static void dump_urb_info(struct urb *_urb, char* _fn_name)
+{
+ DWC_PRINT("%s, urb %p\n", _fn_name, _urb);
+ DWC_PRINT(" Device address: %d\n", usb_pipedevice(_urb->pipe));
+ DWC_PRINT(" Endpoint: %d, %s\n", usb_pipeendpoint(_urb->pipe),
+ (usb_pipein(_urb->pipe) ? "IN" : "OUT"));
+ DWC_PRINT(" Endpoint type: %s\n",
+ ({char *pipetype;
+ switch (usb_pipetype(_urb->pipe)) {
+ case PIPE_CONTROL: pipetype = "CONTROL"; break;
+ case PIPE_BULK: pipetype = "BULK"; break;
+ case PIPE_INTERRUPT: pipetype = "INTERRUPT"; break;
+ case PIPE_ISOCHRONOUS: pipetype = "ISOCHRONOUS"; break;
+ default: pipetype = "UNKNOWN"; break;
+ }; pipetype;}));
+ DWC_PRINT(" Speed: %s\n",
+ ({char *speed;
+ switch (_urb->dev->speed) {
+ case USB_SPEED_HIGH: speed = "HIGH"; break;
+ case USB_SPEED_FULL: speed = "FULL"; break;
+ case USB_SPEED_LOW: speed = "LOW"; break;
+ default: speed = "UNKNOWN"; break;
+ }; speed;}));
+ DWC_PRINT(" Max packet size: %d\n",
+ usb_maxpacket(_urb->dev, _urb->pipe, usb_pipeout(_urb->pipe)));
+ DWC_PRINT(" Data buffer length: %d\n", _urb->transfer_buffer_length);
+ DWC_PRINT(" Transfer buffer: %p, Transfer DMA: %p\n",
+ _urb->transfer_buffer, (void *)_urb->transfer_dma);
+ DWC_PRINT(" Setup buffer: %p, Setup DMA: %p\n",
+ _urb->setup_packet, (void *)_urb->setup_dma);
+ DWC_PRINT(" Interval: %d\n", _urb->interval);
+ if (usb_pipetype(_urb->pipe) == PIPE_ISOCHRONOUS) {
+ int i;
+ for (i = 0; i < _urb->number_of_packets; i++) {
+ DWC_PRINT(" ISO Desc %d:\n", i);
+ DWC_PRINT(" offset: %d, length %d\n",
+ _urb->iso_frame_desc[i].offset,
+ _urb->iso_frame_desc[i].length);
+ }
+ }
+}
+
+static void dump_channel_info(dwc_otg_hcd_t *_hcd, dwc_otg_qh_t *qh)
+{
+ if (qh->channel != NULL) {
+ dwc_hc_t *hc = qh->channel;
+ struct list_head *item;
+ dwc_otg_qh_t *qh_item;
+ int num_channels = _hcd->core_if->core_params->host_channels;
+ int i;
+
+ dwc_otg_hc_regs_t *hc_regs;
+ hcchar_data_t hcchar;
+ hcsplt_data_t hcsplt;
+ hctsiz_data_t hctsiz;
+ uint32_t hcdma;
+
+ hc_regs = _hcd->core_if->host_if->hc_regs[hc->hc_num];
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ hcsplt.d32 = dwc_read_reg32(&hc_regs->hcsplt);
+ hctsiz.d32 = dwc_read_reg32(&hc_regs->hctsiz);
+ hcdma = dwc_read_reg32(&hc_regs->hcdma);
+
+ DWC_PRINT(" Assigned to channel %p:\n", hc);
+ DWC_PRINT(" hcchar 0x%08x, hcsplt 0x%08x\n", hcchar.d32, hcsplt.d32);
+ DWC_PRINT(" hctsiz 0x%08x, hcdma 0x%08x\n", hctsiz.d32, hcdma);
+ DWC_PRINT(" dev_addr: %d, ep_num: %d, ep_is_in: %d\n",
+ hc->dev_addr, hc->ep_num, hc->ep_is_in);
+ DWC_PRINT(" ep_type: %d\n", hc->ep_type);
+ DWC_PRINT(" max_packet: %d\n", hc->max_packet);
+ DWC_PRINT(" data_pid_start: %d\n", hc->data_pid_start);
+ DWC_PRINT(" xfer_started: %d\n", hc->xfer_started);
+ DWC_PRINT(" halt_status: %d\n", hc->halt_status);
+ DWC_PRINT(" xfer_buff: %p\n", hc->xfer_buff);
+ DWC_PRINT(" xfer_len: %d\n", hc->xfer_len);
+ DWC_PRINT(" qh: %p\n", hc->qh);
+ DWC_PRINT(" NP inactive sched:\n");
+ list_for_each(item, &_hcd->non_periodic_sched_inactive) {
+ qh_item = list_entry(item, dwc_otg_qh_t, qh_list_entry);
+ DWC_PRINT(" %p\n", qh_item);
+ } DWC_PRINT(" NP active sched:\n");
+ list_for_each(item, &_hcd->non_periodic_sched_deferred) {
+ qh_item = list_entry(item, dwc_otg_qh_t, qh_list_entry);
+ DWC_PRINT(" %p\n", qh_item);
+ } DWC_PRINT(" NP deferred sched:\n");
+ list_for_each(item, &_hcd->non_periodic_sched_active) {
+ qh_item = list_entry(item, dwc_otg_qh_t, qh_list_entry);
+ DWC_PRINT(" %p\n", qh_item);
+ } DWC_PRINT(" Channels: \n");
+ for (i = 0; i < num_channels; i++) {
+ dwc_hc_t *hc = _hcd->hc_ptr_array[i];
+ DWC_PRINT(" %2d: %p\n", i, hc);
+ }
+ }
+}
+#endif // DEBUG
+
+/** Starts processing a USB transfer request specified by a USB Request Block
+ * (URB). mem_flags indicates the type of memory allocation to use while
+ * processing this URB. */
+int dwc_otg_hcd_urb_enqueue(struct usb_hcd *_hcd,
+ struct urb *_urb,
+ gfp_t _mem_flags)
+{
+ unsigned long flags;
+ int retval;
+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd (_hcd);
+ dwc_otg_qtd_t *qtd;
+
+ local_irq_save(flags);
+ retval = usb_hcd_link_urb_to_ep(_hcd, _urb);
+ if (retval) {
+ local_irq_restore(flags);
+ return retval;
+ }
+#ifdef DEBUG
+ if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) {
+ dump_urb_info(_urb, "dwc_otg_hcd_urb_enqueue");
+ }
+#endif // DEBUG
+ if (!dwc_otg_hcd->flags.b.port_connect_status) {
+ /* No longer connected. */
+ local_irq_restore(flags);
+ return -ENODEV;
+ }
+
+ qtd = dwc_otg_hcd_qtd_create (_urb);
+ if (qtd == NULL) {
+ local_irq_restore(flags);
+ DWC_ERROR("DWC OTG HCD URB Enqueue failed creating QTD\n");
+ return -ENOMEM;
+ }
+
+ retval = dwc_otg_hcd_qtd_add (qtd, dwc_otg_hcd);
+ if (retval < 0) {
+ DWC_ERROR("DWC OTG HCD URB Enqueue failed adding QTD. "
+ "Error status %d\n", retval);
+ dwc_otg_hcd_qtd_free(qtd);
+ }
+
+ local_irq_restore (flags);
+ return retval;
+}
+
+/** Aborts/cancels a USB transfer request. Always returns 0 to indicate
+ * success. */
+int dwc_otg_hcd_urb_dequeue(struct usb_hcd *_hcd, struct urb *_urb, int _status)
+{
+ unsigned long flags;
+ dwc_otg_hcd_t *dwc_otg_hcd;
+ dwc_otg_qtd_t *urb_qtd;
+ dwc_otg_qh_t *qh;
+ int retval;
+ //struct usb_host_endpoint *_ep = NULL;
+
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Dequeue\n");
+
+ local_irq_save(flags);
+
+ retval = usb_hcd_check_unlink_urb(_hcd, _urb, _status);
+ if (retval) {
+ local_irq_restore(flags);
+ return retval;
+ }
+
+ dwc_otg_hcd = hcd_to_dwc_otg_hcd(_hcd);
+ urb_qtd = (dwc_otg_qtd_t *)_urb->hcpriv;
+ if (urb_qtd == NULL) {
+ printk("urb_qtd is NULL for _urb %08x\n",(unsigned)_urb);
+ goto done;
+ }
+ qh = (dwc_otg_qh_t *) urb_qtd->qtd_qh_ptr;
+ if (qh == NULL) {
+ goto done;
+ }
+
+#ifdef DEBUG
+ if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) {
+ dump_urb_info(_urb, "dwc_otg_hcd_urb_dequeue");
+ if (urb_qtd == qh->qtd_in_process) {
+ dump_channel_info(dwc_otg_hcd, qh);
+ }
+ }
+#endif // DEBUG
+
+ if (urb_qtd == qh->qtd_in_process) {
+ /* The QTD is in process (it has been assigned to a channel). */
+
+ if (dwc_otg_hcd->flags.b.port_connect_status) {
+ /*
+ * If still connected (i.e. in host mode), halt the
+ * channel so it can be used for other transfers. If
+ * no longer connected, the host registers can't be
+ * written to halt the channel since the core is in
+ * device mode.
+ */
+ dwc_otg_hc_halt(dwc_otg_hcd->core_if, qh->channel,
+ DWC_OTG_HC_XFER_URB_DEQUEUE);
+ }
+ }
+
+ /*
+ * Free the QTD and clean up the associated QH. Leave the QH in the
+ * schedule if it has any remaining QTDs.
+ */
+ dwc_otg_hcd_qtd_remove_and_free(urb_qtd);
+ if (urb_qtd == qh->qtd_in_process) {
+ dwc_otg_hcd_qh_deactivate(dwc_otg_hcd, qh, 0);
+ qh->channel = NULL;
+ qh->qtd_in_process = NULL;
+ } else if (list_empty(&qh->qtd_list)) {
+ dwc_otg_hcd_qh_remove(dwc_otg_hcd, qh);
+ }
+
+done:
+ local_irq_restore(flags);
+ _urb->hcpriv = NULL;
+
+ /* Higher layer software sets URB status. */
+ usb_hcd_unlink_urb_from_ep(_hcd, _urb);
+ usb_hcd_giveback_urb(_hcd, _urb, _status);
+ if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) {
+ DWC_PRINT("Called usb_hcd_giveback_urb()\n");
+ DWC_PRINT(" urb->status = %d\n", _urb->status);
+ }
+
+ return 0;
+}
+
+
+/** Frees resources in the DWC_otg controller related to a given endpoint. Also
+ * clears state in the HCD related to the endpoint. Any URBs for the endpoint
+ * must already be dequeued. */
+void dwc_otg_hcd_endpoint_disable(struct usb_hcd *_hcd,
+ struct usb_host_endpoint *_ep)
+
+{
+ dwc_otg_qh_t *qh;
+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(_hcd);
+
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD EP DISABLE: _bEndpointAddress=0x%02x, "
+ "endpoint=%d\n", _ep->desc.bEndpointAddress,
+ dwc_ep_addr_to_endpoint(_ep->desc.bEndpointAddress));
+
+ qh = (dwc_otg_qh_t *)(_ep->hcpriv);
+ if (qh != NULL) {
+#ifdef DEBUG
+ /** Check that the QTD list is really empty */
+ if (!list_empty(&qh->qtd_list)) {
+ DWC_WARN("DWC OTG HCD EP DISABLE:"
+ " QTD List for this endpoint is not empty\n");
+ }
+#endif // DEBUG
+
+ dwc_otg_hcd_qh_remove_and_free(dwc_otg_hcd, qh);
+ _ep->hcpriv = NULL;
+ }
+
+ return;
+}
+extern int dwc_irq;
+/** Handles host mode interrupts for the DWC_otg controller. Returns IRQ_NONE if
+ * there was no interrupt to handle. Returns IRQ_HANDLED if there was a valid
+ * interrupt.
+ *
+ * This function is called by the USB core when an interrupt occurs */
+irqreturn_t dwc_otg_hcd_irq(struct usb_hcd *_hcd)
+{
+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd (_hcd);
+
+ mask_and_ack_ifx_irq (dwc_irq);
+ return IRQ_RETVAL(dwc_otg_hcd_handle_intr(dwc_otg_hcd));
+}
+
+/** Creates Status Change bitmap for the root hub and root port. The bitmap is
+ * returned in buf. Bit 0 is the status change indicator for the root hub. Bit 1
+ * is the status change indicator for the single root port. Returns 1 if either
+ * change indicator is 1, otherwise returns 0. */
+int dwc_otg_hcd_hub_status_data(struct usb_hcd *_hcd, char *_buf)
+{
+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd (_hcd);
+
+ _buf[0] = 0;
+ _buf[0] |= (dwc_otg_hcd->flags.b.port_connect_status_change ||
+ dwc_otg_hcd->flags.b.port_reset_change ||
+ dwc_otg_hcd->flags.b.port_enable_change ||
+ dwc_otg_hcd->flags.b.port_suspend_change ||
+ dwc_otg_hcd->flags.b.port_over_current_change) << 1;
+
+#ifdef DEBUG
+ if (_buf[0]) {
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB STATUS DATA:"
+ " Root port status changed\n");
+ DWC_DEBUGPL(DBG_HCDV, " port_connect_status_change: %d\n",
+ dwc_otg_hcd->flags.b.port_connect_status_change);
+ DWC_DEBUGPL(DBG_HCDV, " port_reset_change: %d\n",
+ dwc_otg_hcd->flags.b.port_reset_change);
+ DWC_DEBUGPL(DBG_HCDV, " port_enable_change: %d\n",
+ dwc_otg_hcd->flags.b.port_enable_change);
+ DWC_DEBUGPL(DBG_HCDV, " port_suspend_change: %d\n",
+ dwc_otg_hcd->flags.b.port_suspend_change);
+ DWC_DEBUGPL(DBG_HCDV, " port_over_current_change: %d\n",
+ dwc_otg_hcd->flags.b.port_over_current_change);
+ }
+#endif // DEBUG
+ return (_buf[0] != 0);
+}
+
+#ifdef DWC_HS_ELECT_TST
+/*
+ * Quick and dirty hack to implement the HS Electrical Test
+ * SINGLE_STEP_GET_DEVICE_DESCRIPTOR feature.
+ *
+ * This code was copied from our userspace app "hset". It sends a
+ * Get Device Descriptor control sequence in two parts, first the
+ * Setup packet by itself, followed some time later by the In and
+ * Ack packets. Rather than trying to figure out how to add this
+ * functionality to the normal driver code, we just hijack the
+ * hardware, using these two function to drive the hardware
+ * directly.
+ */
+
+dwc_otg_core_global_regs_t *global_regs;
+dwc_otg_host_global_regs_t *hc_global_regs;
+dwc_otg_hc_regs_t *hc_regs;
+uint32_t *data_fifo;
+
+static void do_setup(void)
+{
+ gintsts_data_t gintsts;
+ hctsiz_data_t hctsiz;
+ hcchar_data_t hcchar;
+ haint_data_t haint;
+ hcint_data_t hcint;
+
+ /* Enable HAINTs */
+ dwc_write_reg32(&hc_global_regs->haintmsk, 0x0001);
+
+ /* Enable HCINTs */
+ dwc_write_reg32(&hc_regs->hcintmsk, 0x04a3);
+
+ /* Read GINTSTS */
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32);
+
+ /* Read HAINT */
+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint);
+ //fprintf(stderr, "HAINT: %08x\n", haint.d32);
+
+ /* Read HCINT */
+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint);
+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32);
+
+ /* Read HCCHAR */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32);
+
+ /* Clear HCINT */
+ dwc_write_reg32(&hc_regs->hcint, hcint.d32);
+
+ /* Clear HAINT */
+ dwc_write_reg32(&hc_global_regs->haint, haint.d32);
+
+ /* Clear GINTSTS */
+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32);
+
+ /* Read GINTSTS */
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32);
+
+ /*
+ * Send Setup packet (Get Device Descriptor)
+ */
+
+ /* Make sure channel is disabled */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ if (hcchar.b.chen) {
+ //fprintf(stderr, "Channel already enabled 1, HCCHAR = %08x\n", hcchar.d32);
+ hcchar.b.chdis = 1;
+ // hcchar.b.chen = 1;
+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32);
+ //sleep(1);
+ MDELAY(1000);
+
+ /* Read GINTSTS */
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32);
+
+ /* Read HAINT */
+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint);
+ //fprintf(stderr, "HAINT: %08x\n", haint.d32);
+
+ /* Read HCINT */
+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint);
+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32);
+
+ /* Read HCCHAR */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32);
+
+ /* Clear HCINT */
+ dwc_write_reg32(&hc_regs->hcint, hcint.d32);
+
+ /* Clear HAINT */
+ dwc_write_reg32(&hc_global_regs->haint, haint.d32);
+
+ /* Clear GINTSTS */
+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32);
+
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ //if (hcchar.b.chen) {
+ // fprintf(stderr, "** Channel _still_ enabled 1, HCCHAR = %08x **\n", hcchar.d32);
+ //}
+ }
+
+ /* Set HCTSIZ */
+ hctsiz.d32 = 0;
+ hctsiz.b.xfersize = 8;
+ hctsiz.b.pktcnt = 1;
+ hctsiz.b.pid = DWC_OTG_HC_PID_SETUP;
+ dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32);
+
+ /* Set HCCHAR */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL;
+ hcchar.b.epdir = 0;
+ hcchar.b.epnum = 0;
+ hcchar.b.mps = 8;
+ hcchar.b.chen = 1;
+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32);
+
+ /* Fill FIFO with Setup data for Get Device Descriptor */
+ data_fifo = (uint32_t *)((char *)global_regs + 0x1000);
+ dwc_write_reg32(data_fifo++, 0x01000680);
+ dwc_write_reg32(data_fifo++, 0x00080000);
+
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "Waiting for HCINTR intr 1, GINTSTS = %08x\n", gintsts.d32);
+
+ /* Wait for host channel interrupt */
+ do {
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ } while (gintsts.b.hcintr == 0);
+
+ //fprintf(stderr, "Got HCINTR intr 1, GINTSTS = %08x\n", gintsts.d32);
+
+ /* Disable HCINTs */
+ dwc_write_reg32(&hc_regs->hcintmsk, 0x0000);
+
+ /* Disable HAINTs */
+ dwc_write_reg32(&hc_global_regs->haintmsk, 0x0000);
+
+ /* Read HAINT */
+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint);
+ //fprintf(stderr, "HAINT: %08x\n", haint.d32);
+
+ /* Read HCINT */
+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint);
+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32);
+
+ /* Read HCCHAR */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32);
+
+ /* Clear HCINT */
+ dwc_write_reg32(&hc_regs->hcint, hcint.d32);
+
+ /* Clear HAINT */
+ dwc_write_reg32(&hc_global_regs->haint, haint.d32);
+
+ /* Clear GINTSTS */
+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32);
+
+ /* Read GINTSTS */
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32);
+}
+
+static void do_in_ack(void)
+{
+ gintsts_data_t gintsts;
+ hctsiz_data_t hctsiz;
+ hcchar_data_t hcchar;
+ haint_data_t haint;
+ hcint_data_t hcint;
+ host_grxsts_data_t grxsts;
+
+ /* Enable HAINTs */
+ dwc_write_reg32(&hc_global_regs->haintmsk, 0x0001);
+
+ /* Enable HCINTs */
+ dwc_write_reg32(&hc_regs->hcintmsk, 0x04a3);
+
+ /* Read GINTSTS */
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32);
+
+ /* Read HAINT */
+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint);
+ //fprintf(stderr, "HAINT: %08x\n", haint.d32);
+
+ /* Read HCINT */
+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint);
+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32);
+
+ /* Read HCCHAR */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32);
+
+ /* Clear HCINT */
+ dwc_write_reg32(&hc_regs->hcint, hcint.d32);
+
+ /* Clear HAINT */
+ dwc_write_reg32(&hc_global_regs->haint, haint.d32);
+
+ /* Clear GINTSTS */
+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32);
+
+ /* Read GINTSTS */
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32);
+
+ /*
+ * Receive Control In packet
+ */
+
+ /* Make sure channel is disabled */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ if (hcchar.b.chen) {
+ //fprintf(stderr, "Channel already enabled 2, HCCHAR = %08x\n", hcchar.d32);
+ hcchar.b.chdis = 1;
+ hcchar.b.chen = 1;
+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32);
+ //sleep(1);
+ MDELAY(1000);
+
+ /* Read GINTSTS */
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32);
+
+ /* Read HAINT */
+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint);
+ //fprintf(stderr, "HAINT: %08x\n", haint.d32);
+
+ /* Read HCINT */
+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint);
+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32);
+
+ /* Read HCCHAR */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32);
+
+ /* Clear HCINT */
+ dwc_write_reg32(&hc_regs->hcint, hcint.d32);
+
+ /* Clear HAINT */
+ dwc_write_reg32(&hc_global_regs->haint, haint.d32);
+
+ /* Clear GINTSTS */
+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32);
+
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ //if (hcchar.b.chen) {
+ // fprintf(stderr, "** Channel _still_ enabled 2, HCCHAR = %08x **\n", hcchar.d32);
+ //}
+ }
+
+ /* Set HCTSIZ */
+ hctsiz.d32 = 0;
+ hctsiz.b.xfersize = 8;
+ hctsiz.b.pktcnt = 1;
+ hctsiz.b.pid = DWC_OTG_HC_PID_DATA1;
+ dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32);
+
+ /* Set HCCHAR */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL;
+ hcchar.b.epdir = 1;
+ hcchar.b.epnum = 0;
+ hcchar.b.mps = 8;
+ hcchar.b.chen = 1;
+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32);
+
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "Waiting for RXSTSQLVL intr 1, GINTSTS = %08x\n", gintsts.d32);
+
+ /* Wait for receive status queue interrupt */
+ do {
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ } while (gintsts.b.rxstsqlvl == 0);
+
+ //fprintf(stderr, "Got RXSTSQLVL intr 1, GINTSTS = %08x\n", gintsts.d32);
+
+ /* Read RXSTS */
+ grxsts.d32 = dwc_read_reg32(&global_regs->grxstsp);
+ //fprintf(stderr, "GRXSTS: %08x\n", grxsts.d32);
+
+ /* Clear RXSTSQLVL in GINTSTS */
+ gintsts.d32 = 0;
+ gintsts.b.rxstsqlvl = 1;
+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32);
+
+ switch (grxsts.b.pktsts) {
+ case DWC_GRXSTS_PKTSTS_IN:
+ /* Read the data into the host buffer */
+ if (grxsts.b.bcnt > 0) {
+ int i;
+ int word_count = (grxsts.b.bcnt + 3) / 4;
+
+ data_fifo = (uint32_t *)((char *)global_regs + 0x1000);
+
+ for (i = 0; i < word_count; i++) {
+ (void)dwc_read_reg32(data_fifo++);
+ }
+ }
+
+ //fprintf(stderr, "Received %u bytes\n", (unsigned)grxsts.b.bcnt);
+ break;
+
+ default:
+ //fprintf(stderr, "** Unexpected GRXSTS packet status 1 **\n");
+ break;
+ }
+
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "Waiting for RXSTSQLVL intr 2, GINTSTS = %08x\n", gintsts.d32);
+
+ /* Wait for receive status queue interrupt */
+ do {
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ } while (gintsts.b.rxstsqlvl == 0);
+
+ //fprintf(stderr, "Got RXSTSQLVL intr 2, GINTSTS = %08x\n", gintsts.d32);
+
+ /* Read RXSTS */
+ grxsts.d32 = dwc_read_reg32(&global_regs->grxstsp);
+ //fprintf(stderr, "GRXSTS: %08x\n", grxsts.d32);
+
+ /* Clear RXSTSQLVL in GINTSTS */
+ gintsts.d32 = 0;
+ gintsts.b.rxstsqlvl = 1;
+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32);
+
+ switch (grxsts.b.pktsts) {
+ case DWC_GRXSTS_PKTSTS_IN_XFER_COMP:
+ break;
+
+ default:
+ //fprintf(stderr, "** Unexpected GRXSTS packet status 2 **\n");
+ break;
+ }
+
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "Waiting for HCINTR intr 2, GINTSTS = %08x\n", gintsts.d32);
+
+ /* Wait for host channel interrupt */
+ do {
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ } while (gintsts.b.hcintr == 0);
+
+ //fprintf(stderr, "Got HCINTR intr 2, GINTSTS = %08x\n", gintsts.d32);
+
+ /* Read HAINT */
+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint);
+ //fprintf(stderr, "HAINT: %08x\n", haint.d32);
+
+ /* Read HCINT */
+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint);
+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32);
+
+ /* Read HCCHAR */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32);
+
+ /* Clear HCINT */
+ dwc_write_reg32(&hc_regs->hcint, hcint.d32);
+
+ /* Clear HAINT */
+ dwc_write_reg32(&hc_global_regs->haint, haint.d32);
+
+ /* Clear GINTSTS */
+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32);
+
+ /* Read GINTSTS */
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32);
+
+ // usleep(100000);
+ // mdelay(100);
+ MDELAY(1);
+
+ /*
+ * Send handshake packet
+ */
+
+ /* Read HAINT */
+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint);
+ //fprintf(stderr, "HAINT: %08x\n", haint.d32);
+
+ /* Read HCINT */
+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint);
+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32);
+
+ /* Read HCCHAR */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32);
+
+ /* Clear HCINT */
+ dwc_write_reg32(&hc_regs->hcint, hcint.d32);
+
+ /* Clear HAINT */
+ dwc_write_reg32(&hc_global_regs->haint, haint.d32);
+
+ /* Clear GINTSTS */
+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32);
+
+ /* Read GINTSTS */
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32);
+
+ /* Make sure channel is disabled */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ if (hcchar.b.chen) {
+ //fprintf(stderr, "Channel already enabled 3, HCCHAR = %08x\n", hcchar.d32);
+ hcchar.b.chdis = 1;
+ hcchar.b.chen = 1;
+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32);
+ //sleep(1);
+ MDELAY(1000);
+
+ /* Read GINTSTS */
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32);
+
+ /* Read HAINT */
+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint);
+ //fprintf(stderr, "HAINT: %08x\n", haint.d32);
+
+ /* Read HCINT */
+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint);
+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32);
+
+ /* Read HCCHAR */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32);
+
+ /* Clear HCINT */
+ dwc_write_reg32(&hc_regs->hcint, hcint.d32);
+
+ /* Clear HAINT */
+ dwc_write_reg32(&hc_global_regs->haint, haint.d32);
+
+ /* Clear GINTSTS */
+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32);
+
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ //if (hcchar.b.chen) {
+ // fprintf(stderr, "** Channel _still_ enabled 3, HCCHAR = %08x **\n", hcchar.d32);
+ //}
+ }
+
+ /* Set HCTSIZ */
+ hctsiz.d32 = 0;
+ hctsiz.b.xfersize = 0;
+ hctsiz.b.pktcnt = 1;
+ hctsiz.b.pid = DWC_OTG_HC_PID_DATA1;
+ dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32);
+
+ /* Set HCCHAR */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL;
+ hcchar.b.epdir = 0;
+ hcchar.b.epnum = 0;
+ hcchar.b.mps = 8;
+ hcchar.b.chen = 1;
+ dwc_write_reg32(&hc_regs->hcchar, hcchar.d32);
+
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "Waiting for HCINTR intr 3, GINTSTS = %08x\n", gintsts.d32);
+
+ /* Wait for host channel interrupt */
+ do {
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ } while (gintsts.b.hcintr == 0);
+
+ //fprintf(stderr, "Got HCINTR intr 3, GINTSTS = %08x\n", gintsts.d32);
+
+ /* Disable HCINTs */
+ dwc_write_reg32(&hc_regs->hcintmsk, 0x0000);
+
+ /* Disable HAINTs */
+ dwc_write_reg32(&hc_global_regs->haintmsk, 0x0000);
+
+ /* Read HAINT */
+ haint.d32 = dwc_read_reg32(&hc_global_regs->haint);
+ //fprintf(stderr, "HAINT: %08x\n", haint.d32);
+
+ /* Read HCINT */
+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint);
+ //fprintf(stderr, "HCINT: %08x\n", hcint.d32);
+
+ /* Read HCCHAR */
+ hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar);
+ //fprintf(stderr, "HCCHAR: %08x\n", hcchar.d32);
+
+ /* Clear HCINT */
+ dwc_write_reg32(&hc_regs->hcint, hcint.d32);
+
+ /* Clear HAINT */
+ dwc_write_reg32(&hc_global_regs->haint, haint.d32);
+
+ /* Clear GINTSTS */
+ dwc_write_reg32(&global_regs->gintsts, gintsts.d32);
+
+ /* Read GINTSTS */
+ gintsts.d32 = dwc_read_reg32(&global_regs->gintsts);
+ //fprintf(stderr, "GINTSTS: %08x\n", gintsts.d32);
+}
+#endif /* DWC_HS_ELECT_TST */
+
+/** Handles hub class-specific requests.*/
+int dwc_otg_hcd_hub_control(struct usb_hcd *_hcd,
+ u16 _typeReq,
+ u16 _wValue,
+ u16 _wIndex,
+ char *_buf,
+ u16 _wLength)
+{
+ int retval = 0;
+
+ dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd (_hcd);
+ dwc_otg_core_if_t *core_if = hcd_to_dwc_otg_hcd (_hcd)->core_if;
+ struct usb_hub_descriptor *desc;
+ hprt0_data_t hprt0 = {.d32 = 0};
+
+ uint32_t port_status;
+
+ switch (_typeReq) {
+ case ClearHubFeature:
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "ClearHubFeature 0x%x\n", _wValue);
+ switch (_wValue) {
+ case C_HUB_LOCAL_POWER:
+ case C_HUB_OVER_CURRENT:
+ /* Nothing required here */
+ break;
+ default:
+ retval = -EINVAL;
+ DWC_ERROR ("DWC OTG HCD - "
+ "ClearHubFeature request %xh unknown\n", _wValue);
+ }
+ break;
+ case ClearPortFeature:
+ if (!_wIndex || _wIndex > 1)
+ goto error;
+
+ switch (_wValue) {
+ case USB_PORT_FEAT_ENABLE:
+ DWC_DEBUGPL (DBG_ANY, "DWC OTG HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_ENABLE\n");
+ hprt0.d32 = dwc_otg_read_hprt0 (core_if);
+ hprt0.b.prtena = 1;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+ break;
+ case USB_PORT_FEAT_SUSPEND:
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_SUSPEND\n");
+ hprt0.d32 = dwc_otg_read_hprt0 (core_if);
+ hprt0.b.prtres = 1;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+ /* Clear Resume bit */
+ mdelay (100);
+ hprt0.b.prtres = 0;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+ break;
+ case USB_PORT_FEAT_POWER:
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_POWER\n");
+ hprt0.d32 = dwc_otg_read_hprt0 (core_if);
+ hprt0.b.prtpwr = 0;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+ break;
+ case USB_PORT_FEAT_INDICATOR:
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_INDICATOR\n");
+ /* Port inidicator not supported */
+ break;
+ case USB_PORT_FEAT_C_CONNECTION:
+ /* Clears drivers internal connect status change
+ * flag */
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_C_CONNECTION\n");
+ dwc_otg_hcd->flags.b.port_connect_status_change = 0;
+ break;
+ case USB_PORT_FEAT_C_RESET:
+ /* Clears the driver's internal Port Reset Change
+ * flag */
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_C_RESET\n");
+ dwc_otg_hcd->flags.b.port_reset_change = 0;
+ break;
+ case USB_PORT_FEAT_C_ENABLE:
+ /* Clears the driver's internal Port
+ * Enable/Disable Change flag */
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_C_ENABLE\n");
+ dwc_otg_hcd->flags.b.port_enable_change = 0;
+ break;
+ case USB_PORT_FEAT_C_SUSPEND:
+ /* Clears the driver's internal Port Suspend
+ * Change flag, which is set when resume signaling on
+ * the host port is complete */
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_C_SUSPEND\n");
+ dwc_otg_hcd->flags.b.port_suspend_change = 0;
+ break;
+ case USB_PORT_FEAT_C_OVER_CURRENT:
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "ClearPortFeature USB_PORT_FEAT_C_OVER_CURRENT\n");
+ dwc_otg_hcd->flags.b.port_over_current_change = 0;
+ break;
+ default:
+ retval = -EINVAL;
+ DWC_ERROR ("DWC OTG HCD - "
+ "ClearPortFeature request %xh "
+ "unknown or unsupported\n", _wValue);
+ }
+ break;
+ case GetHubDescriptor:
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "GetHubDescriptor\n");
+ desc = (struct usb_hub_descriptor *)_buf;
+ desc->bDescLength = 9;
+ desc->bDescriptorType = 0x29;
+ desc->bNbrPorts = 1;
+ desc->wHubCharacteristics = 0x08;
+ desc->bPwrOn2PwrGood = 1;
+ desc->bHubContrCurrent = 0;
+ desc->u.hs.DeviceRemovable[0] = 0;
+ desc->u.hs.DeviceRemovable[1] = 0xff;
+ break;
+ case GetHubStatus:
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "GetHubStatus\n");
+ memset (_buf, 0, 4);
+ break;
+ case GetPortStatus:
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "GetPortStatus\n");
+
+ if (!_wIndex || _wIndex > 1)
+ goto error;
+
+ port_status = 0;
+
+ if (dwc_otg_hcd->flags.b.port_connect_status_change)
+ port_status |= (1 << USB_PORT_FEAT_C_CONNECTION);
+
+ if (dwc_otg_hcd->flags.b.port_enable_change)
+ port_status |= (1 << USB_PORT_FEAT_C_ENABLE);
+
+ if (dwc_otg_hcd->flags.b.port_suspend_change)
+ port_status |= (1 << USB_PORT_FEAT_C_SUSPEND);
+
+ if (dwc_otg_hcd->flags.b.port_reset_change)
+ port_status |= (1 << USB_PORT_FEAT_C_RESET);
+
+ if (dwc_otg_hcd->flags.b.port_over_current_change) {
+ DWC_ERROR("Device Not Supported\n");
+ port_status |= (1 << USB_PORT_FEAT_C_OVER_CURRENT);
+ }
+
+ if (!dwc_otg_hcd->flags.b.port_connect_status) {
+ printk("DISCONNECTED PORT\n");
+ /*
+ * The port is disconnected, which means the core is
+ * either in device mode or it soon will be. Just
+ * return 0's for the remainder of the port status
+ * since the port register can't be read if the core
+ * is in device mode.
+ */
+#if 1 // winder.
+ *((u32 *) _buf) = cpu_to_le32(port_status);
+#else
+ *((__le32 *) _buf) = cpu_to_le32(port_status);
+#endif
+ break;
+ }
+
+ hprt0.d32 = dwc_read_reg32(core_if->host_if->hprt0);
+ DWC_DEBUGPL(DBG_HCDV, " HPRT0: 0x%08x\n", hprt0.d32);
+
+ if (hprt0.b.prtconnsts)
+ port_status |= (1 << USB_PORT_FEAT_CONNECTION);
+
+ if (hprt0.b.prtena)
+ port_status |= (1 << USB_PORT_FEAT_ENABLE);
+
+ if (hprt0.b.prtsusp)
+ port_status |= (1 << USB_PORT_FEAT_SUSPEND);
+
+ if (hprt0.b.prtovrcurract)
+ port_status |= (1 << USB_PORT_FEAT_OVER_CURRENT);
+
+ if (hprt0.b.prtrst)
+ port_status |= (1 << USB_PORT_FEAT_RESET);
+
+ if (hprt0.b.prtpwr)
+ port_status |= (1 << USB_PORT_FEAT_POWER);
+
+ if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED)
+ port_status |= USB_PORT_STAT_HIGH_SPEED;
+
+ else if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_LOW_SPEED)
+ port_status |= (1 << USB_PORT_FEAT_LOWSPEED);
+
+ if (hprt0.b.prttstctl)
+ port_status |= (1 << USB_PORT_FEAT_TEST);
+
+ /* USB_PORT_FEAT_INDICATOR unsupported always 0 */
+#if 1 // winder.
+ *((u32 *) _buf) = cpu_to_le32(port_status);
+#else
+ *((__le32 *) _buf) = cpu_to_le32(port_status);
+#endif
+
+ break;
+ case SetHubFeature:
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "SetHubFeature\n");
+ /* No HUB features supported */
+ break;
+ case SetPortFeature:
+ if (_wValue != USB_PORT_FEAT_TEST && (!_wIndex || _wIndex > 1))
+ goto error;
+
+ if (!dwc_otg_hcd->flags.b.port_connect_status) {
+ /*
+ * The port is disconnected, which means the core is
+ * either in device mode or it soon will be. Just
+ * return without doing anything since the port
+ * register can't be written if the core is in device
+ * mode.
+ */
+ break;
+ }
+
+ switch (_wValue) {
+ case USB_PORT_FEAT_SUSPEND:
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "SetPortFeature - USB_PORT_FEAT_SUSPEND\n");
+ if (_hcd->self.otg_port == _wIndex
+ && _hcd->self.b_hnp_enable) {
+ gotgctl_data_t gotgctl = {.d32=0};
+ gotgctl.b.hstsethnpen = 1;
+ dwc_modify_reg32(&core_if->core_global_regs->
+ gotgctl, 0, gotgctl.d32);
+ core_if->op_state = A_SUSPEND;
+ }
+ hprt0.d32 = dwc_otg_read_hprt0 (core_if);
+ hprt0.b.prtsusp = 1;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+ //DWC_PRINT( "SUSPEND: HPRT0=%0x\n", hprt0.d32);
+ /* Suspend the Phy Clock */
+ {
+ pcgcctl_data_t pcgcctl = {.d32=0};
+ pcgcctl.b.stoppclk = 1;
+ dwc_write_reg32(core_if->pcgcctl, pcgcctl.d32);
+ }
+
+ /* For HNP the bus must be suspended for at least 200ms.*/
+ if (_hcd->self.b_hnp_enable) {
+ mdelay(200);
+ //DWC_PRINT( "SUSPEND: wait complete! (%d)\n", _hcd->state);
+ }
+ break;
+ case USB_PORT_FEAT_POWER:
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "SetPortFeature - USB_PORT_FEAT_POWER\n");
+ hprt0.d32 = dwc_otg_read_hprt0 (core_if);
+ hprt0.b.prtpwr = 1;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+ break;
+ case USB_PORT_FEAT_RESET:
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "SetPortFeature - USB_PORT_FEAT_RESET\n");
+ hprt0.d32 = dwc_otg_read_hprt0 (core_if);
+ /* TODO: Is this for OTG protocol??
+ * We shoudl remove OTG totally for Danube system.
+ * But, in the future, maybe we need this.
+ */
+#if 1 // winder
+ hprt0.b.prtrst = 1;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+#else
+ /* When B-Host the Port reset bit is set in
+ * the Start HCD Callback function, so that
+ * the reset is started within 1ms of the HNP
+ * success interrupt. */
+ if (!_hcd->self.is_b_host) {
+ hprt0.b.prtrst = 1;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+ }
+#endif
+ /* Clear reset bit in 10ms (FS/LS) or 50ms (HS) */
+ MDELAY (60);
+ hprt0.b.prtrst = 0;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+ break;
+
+#ifdef DWC_HS_ELECT_TST
+ case USB_PORT_FEAT_TEST:
+ {
+ uint32_t t;
+ gintmsk_data_t gintmsk;
+
+ t = (_wIndex >> 8); /* MSB wIndex USB */
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "SetPortFeature - USB_PORT_FEAT_TEST %d\n", t);
+ printk("USB_PORT_FEAT_TEST %d\n", t);
+ if (t < 6) {
+ hprt0.d32 = dwc_otg_read_hprt0 (core_if);
+ hprt0.b.prttstctl = t;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+ } else {
+ /* Setup global vars with reg addresses (quick and
+ * dirty hack, should be cleaned up)
+ */
+ global_regs = core_if->core_global_regs;
+ hc_global_regs = core_if->host_if->host_global_regs;
+ hc_regs = (dwc_otg_hc_regs_t *)((char *)global_regs + 0x500);
+ data_fifo = (uint32_t *)((char *)global_regs + 0x1000);
+
+ if (t == 6) { /* HS_HOST_PORT_SUSPEND_RESUME */
+ /* Save current interrupt mask */
+ gintmsk.d32 = dwc_read_reg32(&global_regs->gintmsk);
+
+ /* Disable all interrupts while we muck with
+ * the hardware directly
+ */
+ dwc_write_reg32(&global_regs->gintmsk, 0);
+
+ /* 15 second delay per the test spec */
+ mdelay(15000);
+
+ /* Drive suspend on the root port */
+ hprt0.d32 = dwc_otg_read_hprt0 (core_if);
+ hprt0.b.prtsusp = 1;
+ hprt0.b.prtres = 0;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+
+ /* 15 second delay per the test spec */
+ mdelay(15000);
+
+ /* Drive resume on the root port */
+ hprt0.d32 = dwc_otg_read_hprt0 (core_if);
+ hprt0.b.prtsusp = 0;
+ hprt0.b.prtres = 1;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+ mdelay(100);
+
+ /* Clear the resume bit */
+ hprt0.b.prtres = 0;
+ dwc_write_reg32(core_if->host_if->hprt0, hprt0.d32);
+
+ /* Restore interrupts */
+ dwc_write_reg32(&global_regs->gintmsk, gintmsk.d32);
+ } else if (t == 7) { /* SINGLE_STEP_GET_DEVICE_DESCRIPTOR setup */
+ /* Save current interrupt mask */
+ gintmsk.d32 = dwc_read_reg32(&global_regs->gintmsk);
+
+ /* Disable all interrupts while we muck with
+ * the hardware directly
+ */
+ dwc_write_reg32(&global_regs->gintmsk, 0);
+
+ /* 15 second delay per the test spec */
+ mdelay(15000);
+
+ /* Send the Setup packet */
+ do_setup();
+
+ /* 15 second delay so nothing else happens for awhile */
+ mdelay(15000);
+
+ /* Restore interrupts */
+ dwc_write_reg32(&global_regs->gintmsk, gintmsk.d32);
+ } else if (t == 8) { /* SINGLE_STEP_GET_DEVICE_DESCRIPTOR execute */
+ /* Save current interrupt mask */
+ gintmsk.d32 = dwc_read_reg32(&global_regs->gintmsk);
+
+ /* Disable all interrupts while we muck with
+ * the hardware directly
+ */
+ dwc_write_reg32(&global_regs->gintmsk, 0);
+
+ /* Send the Setup packet */
+ do_setup();
+
+ /* 15 second delay so nothing else happens for awhile */
+ mdelay(15000);
+
+ /* Send the In and Ack packets */
+ do_in_ack();
+
+ /* 15 second delay so nothing else happens for awhile */
+ mdelay(15000);
+
+ /* Restore interrupts */
+ dwc_write_reg32(&global_regs->gintmsk, gintmsk.d32);
+ }
+ }
+ break;
+ }
+#endif /* DWC_HS_ELECT_TST */
+
+ case USB_PORT_FEAT_INDICATOR:
+ DWC_DEBUGPL (DBG_HCD, "DWC OTG HCD HUB CONTROL - "
+ "SetPortFeature - USB_PORT_FEAT_INDICATOR\n");
+ /* Not supported */
+ break;
+ default:
+ retval = -EINVAL;
+ DWC_ERROR ("DWC OTG HCD - "
+ "SetPortFeature request %xh "
+ "unknown or unsupported\n", _wValue);
+ break;
+ }
+ break;
+ default:
+error:
+ retval = -EINVAL;
+ DWC_WARN ("DWC OTG HCD - "
+ "Unknown hub control request type or invalid typeReq: %xh wIndex: %xh wValue: %xh\n",
+ _typeReq, _wIndex, _wValue);
+ break;
+ }
+
+ return retval;
+}
+
+
+/**
+ * Assigns transactions from a QTD to a free host channel and initializes the
+ * host channel to perform the transactions. The host channel is removed from
+ * the free list.
+ *
+ * @param _hcd The HCD state structure.
+ * @param _qh Transactions from the first QTD for this QH are selected and
+ * assigned to a free host channel.
+ */
+static void assign_and_init_hc(dwc_otg_hcd_t *_hcd, dwc_otg_qh_t *_qh)
+{
+ dwc_hc_t *hc;
+ dwc_otg_qtd_t *qtd;
+ struct urb *urb;
+
+ DWC_DEBUGPL(DBG_HCDV, "%s(%p,%p)\n", __func__, _hcd, _qh);
+
+ hc = list_entry(_hcd->free_hc_list.next, dwc_hc_t, hc_list_entry);
+
+ /* Remove the host channel from the free list. */
+ list_del_init(&hc->hc_list_entry);
+
+ qtd = list_entry(_qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry);
+ urb = qtd->urb;
+ _qh->channel = hc;
+ _qh->qtd_in_process = qtd;
+
+ /*
+ * Use usb_pipedevice to determine device address. This address is
+ * 0 before the SET_ADDRESS command and the correct address afterward.
+ */
+ hc->dev_addr = usb_pipedevice(urb->pipe);
+ hc->ep_num = usb_pipeendpoint(urb->pipe);
+
+ if (urb->dev->speed == USB_SPEED_LOW) {
+ hc->speed = DWC_OTG_EP_SPEED_LOW;
+ } else if (urb->dev->speed == USB_SPEED_FULL) {
+ hc->speed = DWC_OTG_EP_SPEED_FULL;
+ } else {
+ hc->speed = DWC_OTG_EP_SPEED_HIGH;
+ }
+ hc->max_packet = dwc_max_packet(_qh->maxp);
+
+ hc->xfer_started = 0;
+ hc->halt_status = DWC_OTG_HC_XFER_NO_HALT_STATUS;
+ hc->error_state = (qtd->error_count > 0);
+ hc->halt_on_queue = 0;
+ hc->halt_pending = 0;
+ hc->requests = 0;
+
+ /*
+ * The following values may be modified in the transfer type section
+ * below. The xfer_len value may be reduced when the transfer is
+ * started to accommodate the max widths of the XferSize and PktCnt
+ * fields in the HCTSIZn register.
+ */
+ hc->do_ping = _qh->ping_state;
+ hc->ep_is_in = (usb_pipein(urb->pipe) != 0);
+ hc->data_pid_start = _qh->data_toggle;
+ hc->multi_count = 1;
+
+ if (_hcd->core_if->dma_enable) {
+ hc->xfer_buff = (uint8_t *)(u32)urb->transfer_dma + urb->actual_length;
+ } else {
+ hc->xfer_buff = (uint8_t *)urb->transfer_buffer + urb->actual_length;
+ }
+ hc->xfer_len = urb->transfer_buffer_length - urb->actual_length;
+ hc->xfer_count = 0;
+
+ /*
+ * Set the split attributes
+ */
+ hc->do_split = 0;
+ if (_qh->do_split) {
+ hc->do_split = 1;
+ hc->xact_pos = qtd->isoc_split_pos;
+ hc->complete_split = qtd->complete_split;
+ hc->hub_addr = urb->dev->tt->hub->devnum;
+ hc->port_addr = urb->dev->ttport;
+ }
+
+ switch (usb_pipetype(urb->pipe)) {
+ case PIPE_CONTROL:
+ hc->ep_type = DWC_OTG_EP_TYPE_CONTROL;
+ switch (qtd->control_phase) {
+ case DWC_OTG_CONTROL_SETUP:
+ DWC_DEBUGPL(DBG_HCDV, " Control setup transaction\n");
+ hc->do_ping = 0;
+ hc->ep_is_in = 0;
+ hc->data_pid_start = DWC_OTG_HC_PID_SETUP;
+ if (_hcd->core_if->dma_enable) {
+ hc->xfer_buff = (uint8_t *)(u32)urb->setup_dma;
+ } else {
+ hc->xfer_buff = (uint8_t *)urb->setup_packet;
+ }
+ hc->xfer_len = 8;
+ break;
+ case DWC_OTG_CONTROL_DATA:
+ DWC_DEBUGPL(DBG_HCDV, " Control data transaction\n");
+ hc->data_pid_start = qtd->data_toggle;
+ break;
+ case DWC_OTG_CONTROL_STATUS:
+ /*
+ * Direction is opposite of data direction or IN if no
+ * data.
+ */
+ DWC_DEBUGPL(DBG_HCDV, " Control status transaction\n");
+ if (urb->transfer_buffer_length == 0) {
+ hc->ep_is_in = 1;
+ } else {
+ hc->ep_is_in = (usb_pipein(urb->pipe) != USB_DIR_IN);
+ }
+ if (hc->ep_is_in) {
+ hc->do_ping = 0;
+ }
+ hc->data_pid_start = DWC_OTG_HC_PID_DATA1;
+ hc->xfer_len = 0;
+ if (_hcd->core_if->dma_enable) {
+ hc->xfer_buff = (uint8_t *)_hcd->status_buf_dma;
+ } else {
+ hc->xfer_buff = (uint8_t *)_hcd->status_buf;
+ }
+ break;
+ }
+ break;
+ case PIPE_BULK:
+ hc->ep_type = DWC_OTG_EP_TYPE_BULK;
+ break;
+ case PIPE_INTERRUPT:
+ hc->ep_type = DWC_OTG_EP_TYPE_INTR;
+ break;
+ case PIPE_ISOCHRONOUS:
+ {
+ struct usb_iso_packet_descriptor *frame_desc;
+ frame_desc = &urb->iso_frame_desc[qtd->isoc_frame_index];
+ hc->ep_type = DWC_OTG_EP_TYPE_ISOC;
+ if (_hcd->core_if->dma_enable) {
+ hc->xfer_buff = (uint8_t *)(u32)urb->transfer_dma;
+ } else {
+ hc->xfer_buff = (uint8_t *)urb->transfer_buffer;
+ }
+ hc->xfer_buff += frame_desc->offset + qtd->isoc_split_offset;
+ hc->xfer_len = frame_desc->length - qtd->isoc_split_offset;
+
+ if (hc->xact_pos == DWC_HCSPLIT_XACTPOS_ALL) {
+ if (hc->xfer_len <= 188) {
+ hc->xact_pos = DWC_HCSPLIT_XACTPOS_ALL;
+ }
+ else {
+ hc->xact_pos = DWC_HCSPLIT_XACTPOS_BEGIN;
+ }
+ }
+ }
+ break;
+ }
+
+ if (hc->ep_type == DWC_OTG_EP_TYPE_INTR ||
+ hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
+ /*
+ * This value may be modified when the transfer is started to
+ * reflect the actual transfer length.
+ */
+ hc->multi_count = dwc_hb_mult(_qh->maxp);
+ }
+
+ dwc_otg_hc_init(_hcd->core_if, hc);
+ hc->qh = _qh;
+}
+#define DEBUG_HOST_CHANNELS
+#ifdef DEBUG_HOST_CHANNELS
+static int last_sel_trans_num_per_scheduled = 0;
+module_param(last_sel_trans_num_per_scheduled, int, 0444);
+
+static int last_sel_trans_num_nonper_scheduled = 0;
+module_param(last_sel_trans_num_nonper_scheduled, int, 0444);
+
+static int last_sel_trans_num_avail_hc_at_start = 0;
+module_param(last_sel_trans_num_avail_hc_at_start, int, 0444);
+
+static int last_sel_trans_num_avail_hc_at_end = 0;
+module_param(last_sel_trans_num_avail_hc_at_end, int, 0444);
+#endif /* DEBUG_HOST_CHANNELS */
+
+/**
+ * This function selects transactions from the HCD transfer schedule and
+ * assigns them to available host channels. It is called from HCD interrupt
+ * handler functions.
+ *
+ * @param _hcd The HCD state structure.
+ *
+ * @return The types of new transactions that were assigned to host channels.
+ */
+dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t *_hcd)
+{
+ struct list_head *qh_ptr;
+ dwc_otg_qh_t *qh;
+ int num_channels;
+ unsigned long flags;
+ dwc_otg_transaction_type_e ret_val = DWC_OTG_TRANSACTION_NONE;
+
+#ifdef DEBUG_SOF
+ DWC_DEBUGPL(DBG_HCD, " Select Transactions\n");
+#endif /* */
+
+#ifdef DEBUG_HOST_CHANNELS
+ last_sel_trans_num_per_scheduled = 0;
+ last_sel_trans_num_nonper_scheduled = 0;
+ last_sel_trans_num_avail_hc_at_start = _hcd->available_host_channels;
+#endif /* DEBUG_HOST_CHANNELS */
+
+ /* Process entries in the periodic ready list. */
+ num_channels = _hcd->core_if->core_params->host_channels;
+ qh_ptr = _hcd->periodic_sched_ready.next;
+ while (qh_ptr != &_hcd->periodic_sched_ready
+ && !list_empty(&_hcd->free_hc_list)) {
+
+ // Make sure we leave one channel for non periodic transactions.
+ local_irq_save(flags);
+ if (_hcd->available_host_channels <= 1) {
+ local_irq_restore(flags);
+ break;
+ }
+ _hcd->available_host_channels--;
+ local_irq_restore(flags);
+#ifdef DEBUG_HOST_CHANNELS
+ last_sel_trans_num_per_scheduled++;
+#endif /* DEBUG_HOST_CHANNELS */
+
+ qh = list_entry(qh_ptr, dwc_otg_qh_t, qh_list_entry);
+ assign_and_init_hc(_hcd, qh);
+
+ /*
+ * Move the QH from the periodic ready schedule to the
+ * periodic assigned schedule.
+ */
+ qh_ptr = qh_ptr->next;
+ local_irq_save(flags);
+ list_move(&qh->qh_list_entry, &_hcd->periodic_sched_assigned);
+ local_irq_restore(flags);
+ ret_val = DWC_OTG_TRANSACTION_PERIODIC;
+ }
+
+ /*
+ * Process entries in the deferred portion of the non-periodic list.
+ * A NAK put them here and, at the right time, they need to be
+ * placed on the sched_inactive list.
+ */
+ qh_ptr = _hcd->non_periodic_sched_deferred.next;
+ while (qh_ptr != &_hcd->non_periodic_sched_deferred) {
+ uint16_t frame_number =
+ dwc_otg_hcd_get_frame_number(dwc_otg_hcd_to_hcd(_hcd));
+ qh = list_entry(qh_ptr, dwc_otg_qh_t, qh_list_entry);
+ qh_ptr = qh_ptr->next;
+
+ if (dwc_frame_num_le(qh->sched_frame, frame_number)) {
+ // NAK did this
+ /*
+ * Move the QH from the non periodic deferred schedule to
+ * the non periodic inactive schedule.
+ */
+ local_irq_save(flags);
+ list_move(&qh->qh_list_entry,
+ &_hcd->non_periodic_sched_inactive);
+ local_irq_restore(flags);
+ }
+ }
+
+ /*
+ * Process entries in the inactive portion of the non-periodic
+ * schedule. Some free host channels may not be used if they are
+ * reserved for periodic transfers.
+ */
+ qh_ptr = _hcd->non_periodic_sched_inactive.next;
+ num_channels = _hcd->core_if->core_params->host_channels;
+ while (qh_ptr != &_hcd->non_periodic_sched_inactive
+ && !list_empty(&_hcd->free_hc_list)) {
+
+ local_irq_save(flags);
+ if (_hcd->available_host_channels < 1) {
+ local_irq_restore(flags);
+ break;
+ }
+ _hcd->available_host_channels--;
+ local_irq_restore(flags);
+#ifdef DEBUG_HOST_CHANNELS
+ last_sel_trans_num_nonper_scheduled++;
+#endif /* DEBUG_HOST_CHANNELS */
+
+ qh = list_entry(qh_ptr, dwc_otg_qh_t, qh_list_entry);
+ assign_and_init_hc(_hcd, qh);
+
+ /*
+ * Move the QH from the non-periodic inactive schedule to the
+ * non-periodic active schedule.
+ */
+ qh_ptr = qh_ptr->next;
+ local_irq_save(flags);
+ list_move(&qh->qh_list_entry, &_hcd->non_periodic_sched_active);
+ local_irq_restore(flags);
+
+ if (ret_val == DWC_OTG_TRANSACTION_NONE) {
+ ret_val = DWC_OTG_TRANSACTION_NON_PERIODIC;
+ } else {
+ ret_val = DWC_OTG_TRANSACTION_ALL;
+ }
+
+ }
+#ifdef DEBUG_HOST_CHANNELS
+ last_sel_trans_num_avail_hc_at_end = _hcd->available_host_channels;
+#endif /* DEBUG_HOST_CHANNELS */
+
+ return ret_val;
+}
+
+/**
+ * Attempts to queue a single transaction request for a host channel
+ * associated with either a periodic or non-periodic transfer. This function
+ * assumes that there is space available in the appropriate request queue. For
+ * an OUT transfer or SETUP transaction in Slave mode, it checks whether space
+ * is available in the appropriate Tx FIFO.
+ *
+ * @param _hcd The HCD state structure.
+ * @param _hc Host channel descriptor associated with either a periodic or
+ * non-periodic transfer.
+ * @param _fifo_dwords_avail Number of DWORDs available in the periodic Tx
+ * FIFO for periodic transfers or the non-periodic Tx FIFO for non-periodic
+ * transfers.
+ *
+ * @return 1 if a request is queued and more requests may be needed to
+ * complete the transfer, 0 if no more requests are required for this
+ * transfer, -1 if there is insufficient space in the Tx FIFO.
+ */
+static int queue_transaction(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t *_hc,
+ uint16_t _fifo_dwords_avail)
+{
+ int retval;
+
+ if (_hcd->core_if->dma_enable) {
+ if (!_hc->xfer_started) {
+ dwc_otg_hc_start_transfer(_hcd->core_if, _hc);
+ _hc->qh->ping_state = 0;
+ }
+ retval = 0;
+ } else if (_hc->halt_pending) {
+ /* Don't queue a request if the channel has been halted. */
+ retval = 0;
+ } else if (_hc->halt_on_queue) {
+ dwc_otg_hc_halt(_hcd->core_if, _hc, _hc->halt_status);
+ retval = 0;
+ } else if (_hc->do_ping) {
+ if (!_hc->xfer_started) {
+ dwc_otg_hc_start_transfer(_hcd->core_if, _hc);
+ }
+ retval = 0;
+ } else if (!_hc->ep_is_in ||
+ _hc->data_pid_start == DWC_OTG_HC_PID_SETUP) {
+ if ((_fifo_dwords_avail * 4) >= _hc->max_packet) {
+ if (!_hc->xfer_started) {
+ dwc_otg_hc_start_transfer(_hcd->core_if, _hc);
+ retval = 1;
+ } else {
+ retval = dwc_otg_hc_continue_transfer(_hcd->core_if, _hc);
+ }
+ } else {
+ retval = -1;
+ }
+ } else {
+ if (!_hc->xfer_started) {
+ dwc_otg_hc_start_transfer(_hcd->core_if, _hc);
+ retval = 1;
+ } else {
+ retval = dwc_otg_hc_continue_transfer(_hcd->core_if, _hc);
+ }
+ }
+
+ return retval;
+}
+
+/**
+ * Processes active non-periodic channels and queues transactions for these
+ * channels to the DWC_otg controller. After queueing transactions, the NP Tx
+ * FIFO Empty interrupt is enabled if there are more transactions to queue as
+ * NP Tx FIFO or request queue space becomes available. Otherwise, the NP Tx
+ * FIFO Empty interrupt is disabled.
+ */
+static void process_non_periodic_channels(dwc_otg_hcd_t *_hcd)
+{
+ gnptxsts_data_t tx_status;
+ struct list_head *orig_qh_ptr;
+ dwc_otg_qh_t *qh;
+ int status;
+ int no_queue_space = 0;
+ int no_fifo_space = 0;
+ int more_to_do = 0;
+
+ dwc_otg_core_global_regs_t *global_regs = _hcd->core_if->core_global_regs;
+
+ DWC_DEBUGPL(DBG_HCDV, "Queue non-periodic transactions\n");
+#ifdef DEBUG
+ tx_status.d32 = dwc_read_reg32(&global_regs->gnptxsts);
+ DWC_DEBUGPL(DBG_HCDV, " NP Tx Req Queue Space Avail (before queue): %d\n",
+ tx_status.b.nptxqspcavail);
+ DWC_DEBUGPL(DBG_HCDV, " NP Tx FIFO Space Avail (before queue): %d\n",
+ tx_status.b.nptxfspcavail);
+#endif
+ /*
+ * Keep track of the starting point. Skip over the start-of-list
+ * entry.
+ */
+ if (_hcd->non_periodic_qh_ptr == &_hcd->non_periodic_sched_active) {
+ _hcd->non_periodic_qh_ptr = _hcd->non_periodic_qh_ptr->next;
+ }
+ orig_qh_ptr = _hcd->non_periodic_qh_ptr;
+
+ /*
+ * Process once through the active list or until no more space is
+ * available in the request queue or the Tx FIFO.
+ */
+ do {
+ tx_status.d32 = dwc_read_reg32(&global_regs->gnptxsts);
+ if (!_hcd->core_if->dma_enable && tx_status.b.nptxqspcavail == 0) {
+ no_queue_space = 1;
+ break;
+ }
+
+ qh = list_entry(_hcd->non_periodic_qh_ptr, dwc_otg_qh_t, qh_list_entry);
+ status = queue_transaction(_hcd, qh->channel, tx_status.b.nptxfspcavail);
+
+ if (status > 0) {
+ more_to_do = 1;
+ } else if (status < 0) {
+ no_fifo_space = 1;
+ break;
+ }
+
+ /* Advance to next QH, skipping start-of-list entry. */
+ _hcd->non_periodic_qh_ptr = _hcd->non_periodic_qh_ptr->next;
+ if (_hcd->non_periodic_qh_ptr == &_hcd->non_periodic_sched_active) {
+ _hcd->non_periodic_qh_ptr = _hcd->non_periodic_qh_ptr->next;
+ }
+
+ } while (_hcd->non_periodic_qh_ptr != orig_qh_ptr);
+
+ if (!_hcd->core_if->dma_enable) {
+ gintmsk_data_t intr_mask = {.d32 = 0};
+ intr_mask.b.nptxfempty = 1;
+
+#ifdef DEBUG
+ tx_status.d32 = dwc_read_reg32(&global_regs->gnptxsts);
+ DWC_DEBUGPL(DBG_HCDV, " NP Tx Req Queue Space Avail (after queue): %d\n",
+ tx_status.b.nptxqspcavail);
+ DWC_DEBUGPL(DBG_HCDV, " NP Tx FIFO Space Avail (after queue): %d\n",
+ tx_status.b.nptxfspcavail);
+#endif
+ if (more_to_do || no_queue_space || no_fifo_space) {
+ /*
+ * May need to queue more transactions as the request
+ * queue or Tx FIFO empties. Enable the non-periodic
+ * Tx FIFO empty interrupt. (Always use the half-empty
+ * level to ensure that new requests are loaded as
+ * soon as possible.)
+ */
+ dwc_modify_reg32(&global_regs->gintmsk, 0, intr_mask.d32);
+ } else {
+ /*
+ * Disable the Tx FIFO empty interrupt since there are
+ * no more transactions that need to be queued right
+ * now. This function is called from interrupt
+ * handlers to queue more transactions as transfer
+ * states change.
+ */
+ dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, 0);
+ }
+ }
+}
+
+/**
+ * Processes periodic channels for the next frame and queues transactions for
+ * these channels to the DWC_otg controller. After queueing transactions, the
+ * Periodic Tx FIFO Empty interrupt is enabled if there are more transactions
+ * to queue as Periodic Tx FIFO or request queue space becomes available.
+ * Otherwise, the Periodic Tx FIFO Empty interrupt is disabled.
+ */
+static void process_periodic_channels(dwc_otg_hcd_t *_hcd)
+{
+ hptxsts_data_t tx_status;
+ struct list_head *qh_ptr;
+ dwc_otg_qh_t *qh;
+ int status;
+ int no_queue_space = 0;
+ int no_fifo_space = 0;
+
+ dwc_otg_host_global_regs_t *host_regs;
+ host_regs = _hcd->core_if->host_if->host_global_regs;
+
+ DWC_DEBUGPL(DBG_HCDV, "Queue periodic transactions\n");
+#ifdef DEBUG
+ tx_status.d32 = dwc_read_reg32(&host_regs->hptxsts);
+ DWC_DEBUGPL(DBG_HCDV, " P Tx Req Queue Space Avail (before queue): %d\n",
+ tx_status.b.ptxqspcavail);
+ DWC_DEBUGPL(DBG_HCDV, " P Tx FIFO Space Avail (before queue): %d\n",
+ tx_status.b.ptxfspcavail);
+#endif
+
+ qh_ptr = _hcd->periodic_sched_assigned.next;
+ while (qh_ptr != &_hcd->periodic_sched_assigned) {
+ tx_status.d32 = dwc_read_reg32(&host_regs->hptxsts);
+ if (tx_status.b.ptxqspcavail == 0) {
+ no_queue_space = 1;
+ break;
+ }
+
+ qh = list_entry(qh_ptr, dwc_otg_qh_t, qh_list_entry);
+
+ /*
+ * Set a flag if we're queuing high-bandwidth in slave mode.
+ * The flag prevents any halts to get into the request queue in
+ * the middle of multiple high-bandwidth packets getting queued.
+ */
+ if ((!_hcd->core_if->dma_enable) &&
+ (qh->channel->multi_count > 1))
+ {
+ _hcd->core_if->queuing_high_bandwidth = 1;
+ }
+
+ status = queue_transaction(_hcd, qh->channel, tx_status.b.ptxfspcavail);
+ if (status < 0) {
+ no_fifo_space = 1;
+ break;
+ }
+
+ /*
+ * In Slave mode, stay on the current transfer until there is
+ * nothing more to do or the high-bandwidth request count is
+ * reached. In DMA mode, only need to queue one request. The
+ * controller automatically handles multiple packets for
+ * high-bandwidth transfers.
+ */
+ if (_hcd->core_if->dma_enable ||
+ (status == 0 ||
+ qh->channel->requests == qh->channel->multi_count)) {
+ qh_ptr = qh_ptr->next;
+ /*
+ * Move the QH from the periodic assigned schedule to
+ * the periodic queued schedule.
+ */
+ list_move(&qh->qh_list_entry, &_hcd->periodic_sched_queued);
+
+ /* done queuing high bandwidth */
+ _hcd->core_if->queuing_high_bandwidth = 0;
+ }
+ }
+
+ if (!_hcd->core_if->dma_enable) {
+ dwc_otg_core_global_regs_t *global_regs;
+ gintmsk_data_t intr_mask = {.d32 = 0};
+
+ global_regs = _hcd->core_if->core_global_regs;
+ intr_mask.b.ptxfempty = 1;
+#ifdef DEBUG
+ tx_status.d32 = dwc_read_reg32(&host_regs->hptxsts);
+ DWC_DEBUGPL(DBG_HCDV, " P Tx Req Queue Space Avail (after queue): %d\n",
+ tx_status.b.ptxqspcavail);
+ DWC_DEBUGPL(DBG_HCDV, " P Tx FIFO Space Avail (after queue): %d\n",
+ tx_status.b.ptxfspcavail);
+#endif
+ if (!(list_empty(&_hcd->periodic_sched_assigned)) ||
+ no_queue_space || no_fifo_space) {
+ /*
+ * May need to queue more transactions as the request
+ * queue or Tx FIFO empties. Enable the periodic Tx
+ * FIFO empty interrupt. (Always use the half-empty
+ * level to ensure that new requests are loaded as
+ * soon as possible.)
+ */
+ dwc_modify_reg32(&global_regs->gintmsk, 0, intr_mask.d32);
+ } else {
+ /*
+ * Disable the Tx FIFO empty interrupt since there are
+ * no more transactions that need to be queued right
+ * now. This function is called from interrupt
+ * handlers to queue more transactions as transfer
+ * states change.
+ */
+ dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, 0);
+ }
+ }
+}
+
+/**
+ * This function processes the currently active host channels and queues
+ * transactions for these channels to the DWC_otg controller. It is called
+ * from HCD interrupt handler functions.
+ *
+ * @param _hcd The HCD state structure.
+ * @param _tr_type The type(s) of transactions to queue (non-periodic,
+ * periodic, or both).
+ */
+void dwc_otg_hcd_queue_transactions(dwc_otg_hcd_t *_hcd,
+ dwc_otg_transaction_type_e _tr_type)
+{
+#ifdef DEBUG_SOF
+ DWC_DEBUGPL(DBG_HCD, "Queue Transactions\n");
+#endif
+ /* Process host channels associated with periodic transfers. */
+ if ((_tr_type == DWC_OTG_TRANSACTION_PERIODIC ||
+ _tr_type == DWC_OTG_TRANSACTION_ALL) &&
+ !list_empty(&_hcd->periodic_sched_assigned)) {
+
+ process_periodic_channels(_hcd);
+ }
+
+ /* Process host channels associated with non-periodic transfers. */
+ if ((_tr_type == DWC_OTG_TRANSACTION_NON_PERIODIC ||
+ _tr_type == DWC_OTG_TRANSACTION_ALL)) {
+ if (!list_empty(&_hcd->non_periodic_sched_active)) {
+ process_non_periodic_channels(_hcd);
+ } else {
+ /*
+ * Ensure NP Tx FIFO empty interrupt is disabled when
+ * there are no non-periodic transfers to process.
+ */
+ gintmsk_data_t gintmsk = {.d32 = 0};
+ gintmsk.b.nptxfempty = 1;
+ dwc_modify_reg32(&_hcd->core_if->core_global_regs->gintmsk, gintmsk.d32, 0);
+ }
+ }
+}
+
+/**
+ * Sets the final status of an URB and returns it to the device driver. Any
+ * required cleanup of the URB is performed.
+ */
+void dwc_otg_hcd_complete_urb(dwc_otg_hcd_t * _hcd, struct urb *_urb,
+ int _status)
+ __releases(_hcd->lock)
+__acquires(_hcd->lock)
+{
+#ifdef DEBUG
+ if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) {
+ DWC_PRINT("%s: urb %p, device %d, ep %d %s, status=%d\n",
+ __func__, _urb, usb_pipedevice(_urb->pipe),
+ usb_pipeendpoint(_urb->pipe),
+ usb_pipein(_urb->pipe) ? "IN" : "OUT", _status);
+ if (usb_pipetype(_urb->pipe) == PIPE_ISOCHRONOUS) {
+ int i;
+ for (i = 0; i < _urb->number_of_packets; i++) {
+ DWC_PRINT(" ISO Desc %d status: %d\n",
+ i, _urb->iso_frame_desc[i].status);
+ }
+ }
+ }
+#endif
+
+ _urb->status = _status;
+ _urb->hcpriv = NULL;
+ usb_hcd_unlink_urb_from_ep(dwc_otg_hcd_to_hcd(_hcd), _urb);
+ spin_unlock(&_hcd->lock);
+ usb_hcd_giveback_urb(dwc_otg_hcd_to_hcd(_hcd), _urb, _status);
+ spin_lock(&_hcd->lock);
+}
+
+/*
+ * Returns the Queue Head for an URB.
+ */
+dwc_otg_qh_t *dwc_urb_to_qh(struct urb *_urb)
+{
+ struct usb_host_endpoint *ep = dwc_urb_to_endpoint(_urb);
+ return (dwc_otg_qh_t *)ep->hcpriv;
+}
+
+#ifdef DEBUG
+void dwc_print_setup_data (uint8_t *setup)
+{
+ int i;
+ if (CHK_DEBUG_LEVEL(DBG_HCD)){
+ DWC_PRINT("Setup Data = MSB ");
+ for (i=7; i>=0; i--) DWC_PRINT ("%02x ", setup[i]);
+ DWC_PRINT("\n");
+ DWC_PRINT(" bmRequestType Tranfer = %s\n", (setup[0]&0x80) ? "Device-to-Host" : "Host-to-Device");
+ DWC_PRINT(" bmRequestType Type = ");
+ switch ((setup[0]&0x60) >> 5) {
+ case 0: DWC_PRINT("Standard\n"); break;
+ case 1: DWC_PRINT("Class\n"); break;
+ case 2: DWC_PRINT("Vendor\n"); break;
+ case 3: DWC_PRINT("Reserved\n"); break;
+ }
+ DWC_PRINT(" bmRequestType Recipient = ");
+ switch (setup[0]&0x1f) {
+ case 0: DWC_PRINT("Device\n"); break;
+ case 1: DWC_PRINT("Interface\n"); break;
+ case 2: DWC_PRINT("Endpoint\n"); break;
+ case 3: DWC_PRINT("Other\n"); break;
+ default: DWC_PRINT("Reserved\n"); break;
+ }
+ DWC_PRINT(" bRequest = 0x%0x\n", setup[1]);
+ DWC_PRINT(" wValue = 0x%0x\n", *((uint16_t *)&setup[2]));
+ DWC_PRINT(" wIndex = 0x%0x\n", *((uint16_t *)&setup[4]));
+ DWC_PRINT(" wLength = 0x%0x\n\n", *((uint16_t *)&setup[6]));
+ }
+}
+#endif
+
+void dwc_otg_hcd_dump_frrem(dwc_otg_hcd_t *_hcd) {
+#ifdef DEBUG
+#if 0
+ DWC_PRINT("Frame remaining at SOF:\n");
+ DWC_PRINT(" samples %u, accum %llu, avg %llu\n",
+ _hcd->frrem_samples, _hcd->frrem_accum,
+ (_hcd->frrem_samples > 0) ?
+ _hcd->frrem_accum/_hcd->frrem_samples : 0);
+
+ DWC_PRINT("\n");
+ DWC_PRINT("Frame remaining at start_transfer (uframe 7):\n");
+ DWC_PRINT(" samples %u, accum %u, avg %u\n",
+ _hcd->core_if->hfnum_7_samples, _hcd->core_if->hfnum_7_frrem_accum,
+ (_hcd->core_if->hfnum_7_samples > 0) ?
+ _hcd->core_if->hfnum_7_frrem_accum/_hcd->core_if->hfnum_7_samples : 0);
+ DWC_PRINT("Frame remaining at start_transfer (uframe 0):\n");
+ DWC_PRINT(" samples %u, accum %u, avg %u\n",
+ _hcd->core_if->hfnum_0_samples, _hcd->core_if->hfnum_0_frrem_accum,
+ (_hcd->core_if->hfnum_0_samples > 0) ?
+ _hcd->core_if->hfnum_0_frrem_accum/_hcd->core_if->hfnum_0_samples : 0);
+ DWC_PRINT("Frame remaining at start_transfer (uframe 1-6):\n");
+ DWC_PRINT(" samples %u, accum %u, avg %u\n",
+ _hcd->core_if->hfnum_other_samples, _hcd->core_if->hfnum_other_frrem_accum,
+ (_hcd->core_if->hfnum_other_samples > 0) ?
+ _hcd->core_if->hfnum_other_frrem_accum/_hcd->core_if->hfnum_other_samples : 0);
+
+ DWC_PRINT("\n");
+ DWC_PRINT("Frame remaining at sample point A (uframe 7):\n");
+ DWC_PRINT(" samples %u, accum %llu, avg %llu\n",
+ _hcd->hfnum_7_samples_a, _hcd->hfnum_7_frrem_accum_a,
+ (_hcd->hfnum_7_samples_a > 0) ?
+ _hcd->hfnum_7_frrem_accum_a/_hcd->hfnum_7_samples_a : 0);
+ DWC_PRINT("Frame remaining at sample point A (uframe 0):\n");
+ DWC_PRINT(" samples %u, accum %llu, avg %llu\n",
+ _hcd->hfnum_0_samples_a, _hcd->hfnum_0_frrem_accum_a,
+ (_hcd->hfnum_0_samples_a > 0) ?
+ _hcd->hfnum_0_frrem_accum_a/_hcd->hfnum_0_samples_a : 0);
+ DWC_PRINT("Frame remaining at sample point A (uframe 1-6):\n");
+ DWC_PRINT(" samples %u, accum %llu, avg %llu\n",
+ _hcd->hfnum_other_samples_a, _hcd->hfnum_other_frrem_accum_a,
+ (_hcd->hfnum_other_samples_a > 0) ?
+ _hcd->hfnum_other_frrem_accum_a/_hcd->hfnum_other_samples_a : 0);
+
+ DWC_PRINT("\n");
+ DWC_PRINT("Frame remaining at sample point B (uframe 7):\n");
+ DWC_PRINT(" samples %u, accum %llu, avg %llu\n",
+ _hcd->hfnum_7_samples_b, _hcd->hfnum_7_frrem_accum_b,
+ (_hcd->hfnum_7_samples_b > 0) ?
+ _hcd->hfnum_7_frrem_accum_b/_hcd->hfnum_7_samples_b : 0);
+ DWC_PRINT("Frame remaining at sample point B (uframe 0):\n");
+ DWC_PRINT(" samples %u, accum %llu, avg %llu\n",
+ _hcd->hfnum_0_samples_b, _hcd->hfnum_0_frrem_accum_b,
+ (_hcd->hfnum_0_samples_b > 0) ?
+ _hcd->hfnum_0_frrem_accum_b/_hcd->hfnum_0_samples_b : 0);
+ DWC_PRINT("Frame remaining at sample point B (uframe 1-6):\n");
+ DWC_PRINT(" samples %u, accum %llu, avg %llu\n",
+ _hcd->hfnum_other_samples_b, _hcd->hfnum_other_frrem_accum_b,
+ (_hcd->hfnum_other_samples_b > 0) ?
+ _hcd->hfnum_other_frrem_accum_b/_hcd->hfnum_other_samples_b : 0);
+#endif
+#endif
+}
+
+void dwc_otg_hcd_dump_state(dwc_otg_hcd_t *_hcd)
+{
+#ifdef DEBUG
+ int num_channels;
+ int i;
+ gnptxsts_data_t np_tx_status;
+ hptxsts_data_t p_tx_status;
+
+ num_channels = _hcd->core_if->core_params->host_channels;
+ DWC_PRINT("\n");
+ DWC_PRINT("************************************************************\n");
+ DWC_PRINT("HCD State:\n");
+ DWC_PRINT(" Num channels: %d\n", num_channels);
+ for (i = 0; i < num_channels; i++) {
+ dwc_hc_t *hc = _hcd->hc_ptr_array[i];
+ DWC_PRINT(" Channel %d:\n", i);
+ DWC_PRINT(" dev_addr: %d, ep_num: %d, ep_is_in: %d\n",
+ hc->dev_addr, hc->ep_num, hc->ep_is_in);
+ DWC_PRINT(" speed: %d\n", hc->speed);
+ DWC_PRINT(" ep_type: %d\n", hc->ep_type);
+ DWC_PRINT(" max_packet: %d\n", hc->max_packet);
+ DWC_PRINT(" data_pid_start: %d\n", hc->data_pid_start);
+ DWC_PRINT(" multi_count: %d\n", hc->multi_count);
+ DWC_PRINT(" xfer_started: %d\n", hc->xfer_started);
+ DWC_PRINT(" xfer_buff: %p\n", hc->xfer_buff);
+ DWC_PRINT(" xfer_len: %d\n", hc->xfer_len);
+ DWC_PRINT(" xfer_count: %d\n", hc->xfer_count);
+ DWC_PRINT(" halt_on_queue: %d\n", hc->halt_on_queue);
+ DWC_PRINT(" halt_pending: %d\n", hc->halt_pending);
+ DWC_PRINT(" halt_status: %d\n", hc->halt_status);
+ DWC_PRINT(" do_split: %d\n", hc->do_split);
+ DWC_PRINT(" complete_split: %d\n", hc->complete_split);
+ DWC_PRINT(" hub_addr: %d\n", hc->hub_addr);
+ DWC_PRINT(" port_addr: %d\n", hc->port_addr);
+ DWC_PRINT(" xact_pos: %d\n", hc->xact_pos);
+ DWC_PRINT(" requests: %d\n", hc->requests);
+ DWC_PRINT(" qh: %p\n", hc->qh);
+ if (hc->xfer_started) {
+ hfnum_data_t hfnum;
+ hcchar_data_t hcchar;
+ hctsiz_data_t hctsiz;
+ hcint_data_t hcint;
+ hcintmsk_data_t hcintmsk;
+ hfnum.d32 = dwc_read_reg32(&_hcd->core_if->host_if->host_global_regs->hfnum);
+ hcchar.d32 = dwc_read_reg32(&_hcd->core_if->host_if->hc_regs[i]->hcchar);
+ hctsiz.d32 = dwc_read_reg32(&_hcd->core_if->host_if->hc_regs[i]->hctsiz);
+ hcint.d32 = dwc_read_reg32(&_hcd->core_if->host_if->hc_regs[i]->hcint);
+ hcintmsk.d32 = dwc_read_reg32(&_hcd->core_if->host_if->hc_regs[i]->hcintmsk);
+ DWC_PRINT(" hfnum: 0x%08x\n", hfnum.d32);
+ DWC_PRINT(" hcchar: 0x%08x\n", hcchar.d32);
+ DWC_PRINT(" hctsiz: 0x%08x\n", hctsiz.d32);
+ DWC_PRINT(" hcint: 0x%08x\n", hcint.d32);
+ DWC_PRINT(" hcintmsk: 0x%08x\n", hcintmsk.d32);
+ }
+ if (hc->xfer_started && (hc->qh != NULL) && (hc->qh->qtd_in_process != NULL)) {
+ dwc_otg_qtd_t *qtd;
+ struct urb *urb;
+ qtd = hc->qh->qtd_in_process;
+ urb = qtd->urb;
+ DWC_PRINT(" URB Info:\n");
+ DWC_PRINT(" qtd: %p, urb: %p\n", qtd, urb);
+ if (urb != NULL) {
+ DWC_PRINT(" Dev: %d, EP: %d %s\n",
+ usb_pipedevice(urb->pipe), usb_pipeendpoint(urb->pipe),
+ usb_pipein(urb->pipe) ? "IN" : "OUT");
+ DWC_PRINT(" Max packet size: %d\n",
+ usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)));
+ DWC_PRINT(" transfer_buffer: %p\n", urb->transfer_buffer);
+ DWC_PRINT(" transfer_dma: %p\n", (void *)urb->transfer_dma);
+ DWC_PRINT(" transfer_buffer_length: %d\n", urb->transfer_buffer_length);
+ DWC_PRINT(" actual_length: %d\n", urb->actual_length);
+ }
+ }
+ }
+ //DWC_PRINT(" non_periodic_channels: %d\n", _hcd->non_periodic_channels);
+ //DWC_PRINT(" periodic_channels: %d\n", _hcd->periodic_channels);
+ DWC_PRINT(" available_channels: %d\n", _hcd->available_host_channels);
+ DWC_PRINT(" periodic_usecs: %d\n", _hcd->periodic_usecs);
+ np_tx_status.d32 = dwc_read_reg32(&_hcd->core_if->core_global_regs->gnptxsts);
+ DWC_PRINT(" NP Tx Req Queue Space Avail: %d\n", np_tx_status.b.nptxqspcavail);
+ DWC_PRINT(" NP Tx FIFO Space Avail: %d\n", np_tx_status.b.nptxfspcavail);
+ p_tx_status.d32 = dwc_read_reg32(&_hcd->core_if->host_if->host_global_regs->hptxsts);
+ DWC_PRINT(" P Tx Req Queue Space Avail: %d\n", p_tx_status.b.ptxqspcavail);
+ DWC_PRINT(" P Tx FIFO Space Avail: %d\n", p_tx_status.b.ptxfspcavail);
+ dwc_otg_hcd_dump_frrem(_hcd);
+ dwc_otg_dump_global_registers(_hcd->core_if);
+ dwc_otg_dump_host_registers(_hcd->core_if);
+ DWC_PRINT("************************************************************\n");
+ DWC_PRINT("\n");
+#endif
+}
+#endif /* DWC_DEVICE_ONLY */
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_hcd.h
@@ -0,0 +1,676 @@
+/* ==========================================================================
+ * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/drivers/dwc_otg_hcd.h $
+ * $Revision: 1.1.1.1 $
+ * $Date: 2009-04-17 06:15:34 $
+ * $Change: 537387 $
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+#ifndef DWC_DEVICE_ONLY
+#if !defined(__DWC_HCD_H__)
+#define __DWC_HCD_H__
+
+#include <linux/list.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+
+struct lm_device;
+struct dwc_otg_device;
+
+#include "dwc_otg_cil.h"
+//#include "dwc_otg_ifx.h" // winder
+
+
+/**
+ * @file
+ *
+ * This file contains the structures, constants, and interfaces for
+ * the Host Contoller Driver (HCD).
+ *
+ * The Host Controller Driver (HCD) is responsible for translating requests
+ * from the USB Driver into the appropriate actions on the DWC_otg controller.
+ * It isolates the USBD from the specifics of the controller by providing an
+ * API to the USBD.
+ */
+
+/**
+ * Phases for control transfers.
+ */
+typedef enum dwc_otg_control_phase {
+ DWC_OTG_CONTROL_SETUP,
+ DWC_OTG_CONTROL_DATA,
+ DWC_OTG_CONTROL_STATUS
+} dwc_otg_control_phase_e;
+
+/** Transaction types. */
+typedef enum dwc_otg_transaction_type {
+ DWC_OTG_TRANSACTION_NONE,
+ DWC_OTG_TRANSACTION_PERIODIC,
+ DWC_OTG_TRANSACTION_NON_PERIODIC,
+ DWC_OTG_TRANSACTION_ALL
+} dwc_otg_transaction_type_e;
+
+/**
+ * A Queue Transfer Descriptor (QTD) holds the state of a bulk, control,
+ * interrupt, or isochronous transfer. A single QTD is created for each URB
+ * (of one of these types) submitted to the HCD. The transfer associated with
+ * a QTD may require one or multiple transactions.
+ *
+ * A QTD is linked to a Queue Head, which is entered in either the
+ * non-periodic or periodic schedule for execution. When a QTD is chosen for
+ * execution, some or all of its transactions may be executed. After
+ * execution, the state of the QTD is updated. The QTD may be retired if all
+ * its transactions are complete or if an error occurred. Otherwise, it
+ * remains in the schedule so more transactions can be executed later.
+ */
+struct dwc_otg_qh;
+typedef struct dwc_otg_qtd {
+ /**
+ * Determines the PID of the next data packet for the data phase of
+ * control transfers. Ignored for other transfer types.<br>
+ * One of the following values:
+ * - DWC_OTG_HC_PID_DATA0
+ * - DWC_OTG_HC_PID_DATA1
+ */
+ uint8_t data_toggle;
+
+ /** Current phase for control transfers (Setup, Data, or Status). */
+ dwc_otg_control_phase_e control_phase;
+
+ /** Keep track of the current split type
+ * for FS/LS endpoints on a HS Hub */
+ uint8_t complete_split;
+
+ /** How many bytes transferred during SSPLIT OUT */
+ uint32_t ssplit_out_xfer_count;
+
+ /**
+ * Holds the number of bus errors that have occurred for a transaction
+ * within this transfer.
+ */
+ uint8_t error_count;
+
+ /**
+ * Index of the next frame descriptor for an isochronous transfer. A
+ * frame descriptor describes the buffer position and length of the
+ * data to be transferred in the next scheduled (micro)frame of an
+ * isochronous transfer. It also holds status for that transaction.
+ * The frame index starts at 0.
+ */
+ int isoc_frame_index;
+
+ /** Position of the ISOC split on full/low speed */
+ uint8_t isoc_split_pos;
+
+ /** Position of the ISOC split in the buffer for the current frame */
+ uint16_t isoc_split_offset;
+
+ /** URB for this transfer */
+ struct urb *urb;
+
+ /** This list of QTDs */
+ struct list_head qtd_list_entry;
+
+ /* Field to track the qh pointer */
+ struct dwc_otg_qh *qtd_qh_ptr;
+} dwc_otg_qtd_t;
+
+/**
+ * A Queue Head (QH) holds the static characteristics of an endpoint and
+ * maintains a list of transfers (QTDs) for that endpoint. A QH structure may
+ * be entered in either the non-periodic or periodic schedule.
+ */
+typedef struct dwc_otg_qh {
+ /**
+ * Endpoint type.
+ * One of the following values:
+ * - USB_ENDPOINT_XFER_CONTROL
+ * - USB_ENDPOINT_XFER_ISOC
+ * - USB_ENDPOINT_XFER_BULK
+ * - USB_ENDPOINT_XFER_INT
+ */
+ uint8_t ep_type;
+ uint8_t ep_is_in;
+
+ /** wMaxPacketSize Field of Endpoint Descriptor. */
+ uint16_t maxp;
+
+ /**
+ * Determines the PID of the next data packet for non-control
+ * transfers. Ignored for control transfers.<br>
+ * One of the following values:
+ * - DWC_OTG_HC_PID_DATA0
+ * - DWC_OTG_HC_PID_DATA1
+ */
+ uint8_t data_toggle;
+
+ /** Ping state if 1. */
+ uint8_t ping_state;
+
+ /**
+ * List of QTDs for this QH.
+ */
+ struct list_head qtd_list;
+
+ /** Host channel currently processing transfers for this QH. */
+ dwc_hc_t *channel;
+
+ /** QTD currently assigned to a host channel for this QH. */
+ dwc_otg_qtd_t *qtd_in_process;
+
+ /** Full/low speed endpoint on high-speed hub requires split. */
+ uint8_t do_split;
+
+ /** @name Periodic schedule information */
+ /** @{ */
+
+ /** Bandwidth in microseconds per (micro)frame. */
+ uint8_t usecs;
+
+ /** Interval between transfers in (micro)frames. */
+ uint16_t interval;
+
+ /**
+ * (micro)frame to initialize a periodic transfer. The transfer
+ * executes in the following (micro)frame.
+ */
+ uint16_t sched_frame;
+
+ /** (micro)frame at which last start split was initialized. */
+ uint16_t start_split_frame;
+
+ /** @} */
+
+ uint16_t speed;
+ uint16_t frame_usecs[8];
+ /** Entry for QH in either the periodic or non-periodic schedule. */
+ struct list_head qh_list_entry;
+} dwc_otg_qh_t;
+
+/**
+ * This structure holds the state of the HCD, including the non-periodic and
+ * periodic schedules.
+ */
+typedef struct dwc_otg_hcd {
+ spinlock_t lock;
+
+ /** DWC OTG Core Interface Layer */
+ dwc_otg_core_if_t *core_if;
+
+ /** Internal DWC HCD Flags */
+ volatile union dwc_otg_hcd_internal_flags {
+ uint32_t d32;
+ struct {
+ unsigned port_connect_status_change : 1;
+ unsigned port_connect_status : 1;
+ unsigned port_reset_change : 1;
+ unsigned port_enable_change : 1;
+ unsigned port_suspend_change : 1;
+ unsigned port_over_current_change : 1;
+ unsigned reserved : 27;
+ } b;
+ } flags;
+
+ /**
+ * Inactive items in the non-periodic schedule. This is a list of
+ * Queue Heads. Transfers associated with these Queue Heads are not
+ * currently assigned to a host channel.
+ */
+ struct list_head non_periodic_sched_inactive;
+
+ /**
+ * Deferred items in the non-periodic schedule. This is a list of
+ * Queue Heads. Transfers associated with these Queue Heads are not
+ * currently assigned to a host channel.
+ * When we get an NAK, the QH goes here.
+ */
+ struct list_head non_periodic_sched_deferred;
+
+ /**
+ * Active items in the non-periodic schedule. This is a list of
+ * Queue Heads. Transfers associated with these Queue Heads are
+ * currently assigned to a host channel.
+ */
+ struct list_head non_periodic_sched_active;
+
+ /**
+ * Pointer to the next Queue Head to process in the active
+ * non-periodic schedule.
+ */
+ struct list_head *non_periodic_qh_ptr;
+
+ /**
+ * Inactive items in the periodic schedule. This is a list of QHs for
+ * periodic transfers that are _not_ scheduled for the next frame.
+ * Each QH in the list has an interval counter that determines when it
+ * needs to be scheduled for execution. This scheduling mechanism
+ * allows only a simple calculation for periodic bandwidth used (i.e.
+ * must assume that all periodic transfers may need to execute in the
+ * same frame). However, it greatly simplifies scheduling and should
+ * be sufficient for the vast majority of OTG hosts, which need to
+ * connect to a small number of peripherals at one time.
+ *
+ * Items move from this list to periodic_sched_ready when the QH
+ * interval counter is 0 at SOF.
+ */
+ struct list_head periodic_sched_inactive;
+
+ /**
+ * List of periodic QHs that are ready for execution in the next
+ * frame, but have not yet been assigned to host channels.
+ *
+ * Items move from this list to periodic_sched_assigned as host
+ * channels become available during the current frame.
+ */
+ struct list_head periodic_sched_ready;
+
+ /**
+ * List of periodic QHs to be executed in the next frame that are
+ * assigned to host channels.
+ *
+ * Items move from this list to periodic_sched_queued as the
+ * transactions for the QH are queued to the DWC_otg controller.
+ */
+ struct list_head periodic_sched_assigned;
+
+ /**
+ * List of periodic QHs that have been queued for execution.
+ *
+ * Items move from this list to either periodic_sched_inactive or
+ * periodic_sched_ready when the channel associated with the transfer
+ * is released. If the interval for the QH is 1, the item moves to
+ * periodic_sched_ready because it must be rescheduled for the next
+ * frame. Otherwise, the item moves to periodic_sched_inactive.
+ */
+ struct list_head periodic_sched_queued;
+
+ /**
+ * Total bandwidth claimed so far for periodic transfers. This value
+ * is in microseconds per (micro)frame. The assumption is that all
+ * periodic transfers may occur in the same (micro)frame.
+ */
+ uint16_t periodic_usecs;
+
+ /**
+ * Total bandwidth claimed so far for all periodic transfers
+ * in a frame.
+ * This will include a mixture of HS and FS transfers.
+ * Units are microseconds per (micro)frame.
+ * We have a budget per frame and have to schedule
+ * transactions accordingly.
+ * Watch out for the fact that things are actually scheduled for the
+ * "next frame".
+ */
+ uint16_t frame_usecs[8];
+
+ /**
+ * Frame number read from the core at SOF. The value ranges from 0 to
+ * DWC_HFNUM_MAX_FRNUM.
+ */
+ uint16_t frame_number;
+
+ /**
+ * Free host channels in the controller. This is a list of
+ * dwc_hc_t items.
+ */
+ struct list_head free_hc_list;
+
+ /**
+ * Number of available host channels.
+ */
+ int available_host_channels;
+
+ /**
+ * Array of pointers to the host channel descriptors. Allows accessing
+ * a host channel descriptor given the host channel number. This is
+ * useful in interrupt handlers.
+ */
+ dwc_hc_t *hc_ptr_array[MAX_EPS_CHANNELS];
+
+ /**
+ * Buffer to use for any data received during the status phase of a
+ * control transfer. Normally no data is transferred during the status
+ * phase. This buffer is used as a bit bucket.
+ */
+ uint8_t *status_buf;
+
+ /**
+ * DMA address for status_buf.
+ */
+ dma_addr_t status_buf_dma;
+#define DWC_OTG_HCD_STATUS_BUF_SIZE 64
+
+ /**
+ * Structure to allow starting the HCD in a non-interrupt context
+ * during an OTG role change.
+ */
+ struct work_struct start_work;
+ struct usb_hcd *_p;
+
+ /**
+ * Connection timer. An OTG host must display a message if the device
+ * does not connect. Started when the VBus power is turned on via
+ * sysfs attribute "buspower".
+ */
+ struct timer_list conn_timer;
+
+ /* Tasket to do a reset */
+ struct tasklet_struct *reset_tasklet;
+
+#ifdef DEBUG
+ uint32_t frrem_samples;
+ uint64_t frrem_accum;
+
+ uint32_t hfnum_7_samples_a;
+ uint64_t hfnum_7_frrem_accum_a;
+ uint32_t hfnum_0_samples_a;
+ uint64_t hfnum_0_frrem_accum_a;
+ uint32_t hfnum_other_samples_a;
+ uint64_t hfnum_other_frrem_accum_a;
+
+ uint32_t hfnum_7_samples_b;
+ uint64_t hfnum_7_frrem_accum_b;
+ uint32_t hfnum_0_samples_b;
+ uint64_t hfnum_0_frrem_accum_b;
+ uint32_t hfnum_other_samples_b;
+ uint64_t hfnum_other_frrem_accum_b;
+#endif
+
+} dwc_otg_hcd_t;
+
+/** Gets the dwc_otg_hcd from a struct usb_hcd */
+static inline dwc_otg_hcd_t *hcd_to_dwc_otg_hcd(struct usb_hcd *hcd)
+{
+ return (dwc_otg_hcd_t *)(hcd->hcd_priv);
+}
+
+/** Gets the struct usb_hcd that contains a dwc_otg_hcd_t. */
+static inline struct usb_hcd *dwc_otg_hcd_to_hcd(dwc_otg_hcd_t *dwc_otg_hcd)
+{
+ return container_of((void *)dwc_otg_hcd, struct usb_hcd, hcd_priv);
+}
+
+/** @name HCD Create/Destroy Functions */
+/** @{ */
+extern int __devinit dwc_otg_hcd_init(struct device *_dev, dwc_otg_device_t * dwc_otg_device);
+extern void dwc_otg_hcd_remove(struct device *_dev);
+/** @} */
+
+/** @name Linux HC Driver API Functions */
+/** @{ */
+
+extern int dwc_otg_hcd_start(struct usb_hcd *hcd);
+extern void dwc_otg_hcd_stop(struct usb_hcd *hcd);
+extern int dwc_otg_hcd_get_frame_number(struct usb_hcd *hcd);
+extern void dwc_otg_hcd_free(struct usb_hcd *hcd);
+
+extern int dwc_otg_hcd_urb_enqueue(struct usb_hcd *hcd,
+ struct urb *urb,
+ gfp_t mem_flags);
+extern int dwc_otg_hcd_urb_dequeue(struct usb_hcd *hcd,
+ struct urb *urb,
+ int status);
+extern irqreturn_t dwc_otg_hcd_irq(struct usb_hcd *hcd);
+
+extern void dwc_otg_hcd_endpoint_disable(struct usb_hcd *hcd,
+ struct usb_host_endpoint *ep);
+
+extern int dwc_otg_hcd_hub_status_data(struct usb_hcd *hcd,
+ char *buf);
+extern int dwc_otg_hcd_hub_control(struct usb_hcd *hcd,
+ u16 typeReq,
+ u16 wValue,
+ u16 wIndex,
+ char *buf,
+ u16 wLength);
+
+/** @} */
+
+/** @name Transaction Execution Functions */
+/** @{ */
+extern dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t *_hcd);
+extern void dwc_otg_hcd_queue_transactions(dwc_otg_hcd_t *_hcd,
+ dwc_otg_transaction_type_e _tr_type);
+extern void dwc_otg_hcd_complete_urb(dwc_otg_hcd_t *_hcd, struct urb *_urb,
+ int _status);
+/** @} */
+
+/** @name Interrupt Handler Functions */
+/** @{ */
+extern int32_t dwc_otg_hcd_handle_intr (dwc_otg_hcd_t *_dwc_otg_hcd);
+extern int32_t dwc_otg_hcd_handle_sof_intr (dwc_otg_hcd_t *_dwc_otg_hcd);
+extern int32_t dwc_otg_hcd_handle_rx_status_q_level_intr (dwc_otg_hcd_t *_dwc_otg_hcd);
+extern int32_t dwc_otg_hcd_handle_np_tx_fifo_empty_intr (dwc_otg_hcd_t *_dwc_otg_hcd);
+extern int32_t dwc_otg_hcd_handle_perio_tx_fifo_empty_intr (dwc_otg_hcd_t *_dwc_otg_hcd);
+extern int32_t dwc_otg_hcd_handle_incomplete_periodic_intr(dwc_otg_hcd_t *_dwc_otg_hcd);
+extern int32_t dwc_otg_hcd_handle_port_intr (dwc_otg_hcd_t *_dwc_otg_hcd);
+extern int32_t dwc_otg_hcd_handle_conn_id_status_change_intr (dwc_otg_hcd_t *_dwc_otg_hcd);
+extern int32_t dwc_otg_hcd_handle_disconnect_intr (dwc_otg_hcd_t *_dwc_otg_hcd);
+extern int32_t dwc_otg_hcd_handle_hc_intr (dwc_otg_hcd_t *_dwc_otg_hcd);
+extern int32_t dwc_otg_hcd_handle_hc_n_intr (dwc_otg_hcd_t *_dwc_otg_hcd, uint32_t _num);
+extern int32_t dwc_otg_hcd_handle_session_req_intr (dwc_otg_hcd_t *_dwc_otg_hcd);
+extern int32_t dwc_otg_hcd_handle_wakeup_detected_intr (dwc_otg_hcd_t *_dwc_otg_hcd);
+/** @} */
+
+
+/** @name Schedule Queue Functions */
+/** @{ */
+
+/* Implemented in dwc_otg_hcd_queue.c */
+extern dwc_otg_qh_t *dwc_otg_hcd_qh_create (dwc_otg_hcd_t *_hcd, struct urb *_urb);
+extern void dwc_otg_hcd_qh_init (dwc_otg_hcd_t *_hcd, dwc_otg_qh_t *_qh, struct urb *_urb);
+extern void dwc_otg_hcd_qh_free (dwc_otg_qh_t *_qh);
+extern int dwc_otg_hcd_qh_add (dwc_otg_hcd_t *_hcd, dwc_otg_qh_t *_qh);
+extern void dwc_otg_hcd_qh_remove (dwc_otg_hcd_t *_hcd, dwc_otg_qh_t *_qh);
+extern void dwc_otg_hcd_qh_deactivate (dwc_otg_hcd_t *_hcd, dwc_otg_qh_t *_qh, int sched_csplit);
+extern int dwc_otg_hcd_qh_deferr (dwc_otg_hcd_t *_hcd, dwc_otg_qh_t *_qh, int delay);
+
+/** Remove and free a QH */
+static inline void dwc_otg_hcd_qh_remove_and_free (dwc_otg_hcd_t *_hcd,
+ dwc_otg_qh_t *_qh)
+{
+ dwc_otg_hcd_qh_remove (_hcd, _qh);
+ dwc_otg_hcd_qh_free (_qh);
+}
+
+/** Allocates memory for a QH structure.
+ * @return Returns the memory allocate or NULL on error. */
+static inline dwc_otg_qh_t *dwc_otg_hcd_qh_alloc (void)
+{
+#ifdef _SC_BUILD_
+ return (dwc_otg_qh_t *) kmalloc (sizeof(dwc_otg_qh_t), GFP_ATOMIC);
+#else
+ return (dwc_otg_qh_t *) kmalloc (sizeof(dwc_otg_qh_t), GFP_KERNEL);
+#endif
+}
+
+extern dwc_otg_qtd_t *dwc_otg_hcd_qtd_create (struct urb *urb);
+extern void dwc_otg_hcd_qtd_init (dwc_otg_qtd_t *qtd, struct urb *urb);
+extern int dwc_otg_hcd_qtd_add (dwc_otg_qtd_t *qtd, dwc_otg_hcd_t *dwc_otg_hcd);
+
+/** Allocates memory for a QTD structure.
+ * @return Returns the memory allocate or NULL on error. */
+static inline dwc_otg_qtd_t *dwc_otg_hcd_qtd_alloc (void)
+{
+#ifdef _SC_BUILD_
+ return (dwc_otg_qtd_t *) kmalloc (sizeof(dwc_otg_qtd_t), GFP_ATOMIC);
+#else
+ return (dwc_otg_qtd_t *) kmalloc (sizeof(dwc_otg_qtd_t), GFP_KERNEL);
+#endif
+}
+
+/** Frees the memory for a QTD structure. QTD should already be removed from
+ * list.
+ * @param[in] _qtd QTD to free.*/
+static inline void dwc_otg_hcd_qtd_free (dwc_otg_qtd_t *_qtd)
+{
+ kfree (_qtd);
+}
+
+/** Removes a QTD from list.
+ * @param[in] _qtd QTD to remove from list. */
+static inline void dwc_otg_hcd_qtd_remove (dwc_otg_qtd_t *_qtd)
+{
+ unsigned long flags;
+ local_irq_save (flags);
+ list_del (&_qtd->qtd_list_entry);
+ local_irq_restore (flags);
+}
+
+/** Remove and free a QTD */
+static inline void dwc_otg_hcd_qtd_remove_and_free (dwc_otg_qtd_t *_qtd)
+{
+ dwc_otg_hcd_qtd_remove (_qtd);
+ dwc_otg_hcd_qtd_free (_qtd);
+}
+
+/** @} */
+
+
+/** @name Internal Functions */
+/** @{ */
+dwc_otg_qh_t *dwc_urb_to_qh(struct urb *_urb);
+void dwc_otg_hcd_dump_frrem(dwc_otg_hcd_t *_hcd);
+void dwc_otg_hcd_dump_state(dwc_otg_hcd_t *_hcd);
+/** @} */
+
+
+/** Gets the usb_host_endpoint associated with an URB. */
+static inline struct usb_host_endpoint *dwc_urb_to_endpoint(struct urb *_urb)
+{
+ struct usb_device *dev = _urb->dev;
+ int ep_num = usb_pipeendpoint(_urb->pipe);
+ if (usb_pipein(_urb->pipe))
+ return dev->ep_in[ep_num];
+ else
+ return dev->ep_out[ep_num];
+}
+
+/**
+ * Gets the endpoint number from a _bEndpointAddress argument. The endpoint is
+ * qualified with its direction (possible 32 endpoints per device).
+ */
+#define dwc_ep_addr_to_endpoint(_bEndpointAddress_) \
+ ((_bEndpointAddress_ & USB_ENDPOINT_NUMBER_MASK) | \
+ ((_bEndpointAddress_ & USB_DIR_IN) != 0) << 4)
+
+/** Gets the QH that contains the list_head */
+#define dwc_list_to_qh(_list_head_ptr_) (container_of(_list_head_ptr_,dwc_otg_qh_t,qh_list_entry))
+
+/** Gets the QTD that contains the list_head */
+#define dwc_list_to_qtd(_list_head_ptr_) (container_of(_list_head_ptr_,dwc_otg_qtd_t,qtd_list_entry))
+
+/** Check if QH is non-periodic */
+#define dwc_qh_is_non_per(_qh_ptr_) ((_qh_ptr_->ep_type == USB_ENDPOINT_XFER_BULK) || \
+ (_qh_ptr_->ep_type == USB_ENDPOINT_XFER_CONTROL))
+
+/** High bandwidth multiplier as encoded in highspeed endpoint descriptors */
+#define dwc_hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03))
+
+/** Packet size for any kind of endpoint descriptor */
+#define dwc_max_packet(wMaxPacketSize) ((wMaxPacketSize) & 0x07ff)
+
+/**
+ * Returns true if _frame1 is less than or equal to _frame2. The comparison is
+ * done modulo DWC_HFNUM_MAX_FRNUM. This accounts for the rollover of the
+ * frame number when the max frame number is reached.
+ */
+static inline int dwc_frame_num_le(uint16_t _frame1, uint16_t _frame2)
+{
+ return ((_frame2 - _frame1) & DWC_HFNUM_MAX_FRNUM) <=
+ (DWC_HFNUM_MAX_FRNUM >> 1);
+}
+
+/**
+ * Returns true if _frame1 is greater than _frame2. The comparison is done
+ * modulo DWC_HFNUM_MAX_FRNUM. This accounts for the rollover of the frame
+ * number when the max frame number is reached.
+ */
+static inline int dwc_frame_num_gt(uint16_t _frame1, uint16_t _frame2)
+{
+ return (_frame1 != _frame2) &&
+ (((_frame1 - _frame2) & DWC_HFNUM_MAX_FRNUM) <
+ (DWC_HFNUM_MAX_FRNUM >> 1));
+}
+
+/**
+ * Increments _frame by the amount specified by _inc. The addition is done
+ * modulo DWC_HFNUM_MAX_FRNUM. Returns the incremented value.
+ */
+static inline uint16_t dwc_frame_num_inc(uint16_t _frame, uint16_t _inc)
+{
+ return (_frame + _inc) & DWC_HFNUM_MAX_FRNUM;
+}
+
+static inline uint16_t dwc_full_frame_num (uint16_t _frame)
+{
+ return ((_frame) & DWC_HFNUM_MAX_FRNUM) >> 3;
+}
+
+static inline uint16_t dwc_micro_frame_num (uint16_t _frame)
+{
+ return (_frame) & 0x7;
+}
+
+#ifdef DEBUG
+/**
+ * Macro to sample the remaining PHY clocks left in the current frame. This
+ * may be used during debugging to determine the average time it takes to
+ * execute sections of code. There are two possible sample points, "a" and
+ * "b", so the _letter argument must be one of these values.
+ *
+ * To dump the average sample times, read the "hcd_frrem" sysfs attribute. For
+ * example, "cat /sys/devices/lm0/hcd_frrem".
+ */
+#define dwc_sample_frrem(_hcd, _qh, _letter) \
+{ \
+ hfnum_data_t hfnum; \
+ dwc_otg_qtd_t *qtd; \
+ qtd = list_entry(_qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry); \
+ if (usb_pipeint(qtd->urb->pipe) && _qh->start_split_frame != 0 && !qtd->complete_split) { \
+ hfnum.d32 = dwc_read_reg32(&_hcd->core_if->host_if->host_global_regs->hfnum); \
+ switch (hfnum.b.frnum & 0x7) { \
+ case 7: \
+ _hcd->hfnum_7_samples_##_letter++; \
+ _hcd->hfnum_7_frrem_accum_##_letter += hfnum.b.frrem; \
+ break; \
+ case 0: \
+ _hcd->hfnum_0_samples_##_letter++; \
+ _hcd->hfnum_0_frrem_accum_##_letter += hfnum.b.frrem; \
+ break; \
+ default: \
+ _hcd->hfnum_other_samples_##_letter++; \
+ _hcd->hfnum_other_frrem_accum_##_letter += hfnum.b.frrem; \
+ break; \
+ } \
+ } \
+}
+#else // DEBUG
+#define dwc_sample_frrem(_hcd, _qh, _letter)
+#endif // DEBUG
+#endif // __DWC_HCD_H__
+#endif /* DWC_DEVICE_ONLY */
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_hcd_intr.c
@@ -0,0 +1,1841 @@
+/* ==========================================================================
+ * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/drivers/dwc_otg_hcd_intr.c $
+ * $Revision: 1.1.1.1 $
+ * $Date: 2009-04-17 06:15:34 $
+ * $Change: 553126 $
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+#ifndef DWC_DEVICE_ONLY
+
+#include "dwc_otg_driver.h"
+#include "dwc_otg_hcd.h"
+#include "dwc_otg_regs.h"
+
+const int erratum_usb09_patched = 0;
+const int deferral_on = 1;
+const int nak_deferral_delay = 8;
+const int nyet_deferral_delay = 1;
+/** @file
+ * This file contains the implementation of the HCD Interrupt handlers.
+ */
+
+/** This function handles interrupts for the HCD. */
+int32_t dwc_otg_hcd_handle_intr (dwc_otg_hcd_t *_dwc_otg_hcd)
+{
+ int retval = 0;
+
+ dwc_otg_core_if_t *core_if = _dwc_otg_hcd->core_if;
+ gintsts_data_t gintsts;
+#ifdef DEBUG
+ dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
+#endif
+
+ /* Check if HOST Mode */
+ if (dwc_otg_is_host_mode(core_if)) {
+ gintsts.d32 = dwc_otg_read_core_intr(core_if);
+ if (!gintsts.d32) {
+ return 0;
+ }
+
+#ifdef DEBUG
+ /* Don't print debug message in the interrupt handler on SOF */
+# ifndef DEBUG_SOF
+ if (gintsts.d32 != DWC_SOF_INTR_MASK)
+# endif
+ DWC_DEBUGPL (DBG_HCD, "\n");
+#endif
+
+#ifdef DEBUG
+# ifndef DEBUG_SOF
+ if (gintsts.d32 != DWC_SOF_INTR_MASK)
+# endif
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Interrupt Detected gintsts&gintmsk=0x%08x\n", gintsts.d32);
+#endif
+
+ if (gintsts.b.sofintr) {
+ retval |= dwc_otg_hcd_handle_sof_intr (_dwc_otg_hcd);
+ }
+ if (gintsts.b.rxstsqlvl) {
+ retval |= dwc_otg_hcd_handle_rx_status_q_level_intr (_dwc_otg_hcd);
+ }
+ if (gintsts.b.nptxfempty) {
+ retval |= dwc_otg_hcd_handle_np_tx_fifo_empty_intr (_dwc_otg_hcd);
+ }
+ if (gintsts.b.i2cintr) {
+ /** @todo Implement i2cintr handler. */
+ }
+ if (gintsts.b.portintr) {
+ retval |= dwc_otg_hcd_handle_port_intr (_dwc_otg_hcd);
+ }
+ if (gintsts.b.hcintr) {
+ retval |= dwc_otg_hcd_handle_hc_intr (_dwc_otg_hcd);
+ }
+ if (gintsts.b.ptxfempty) {
+ retval |= dwc_otg_hcd_handle_perio_tx_fifo_empty_intr (_dwc_otg_hcd);
+ }
+#ifdef DEBUG
+# ifndef DEBUG_SOF
+ if (gintsts.d32 != DWC_SOF_INTR_MASK)
+# endif
+ {
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Finished Servicing Interrupts\n");
+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD gintsts=0x%08x\n",
+ dwc_read_reg32(&global_regs->gintsts));
+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD gintmsk=0x%08x\n",
+ dwc_read_reg32(&global_regs->gintmsk));
+ }
+#endif
+
+#ifdef DEBUG
+# ifndef DEBUG_SOF
+ if (gintsts.d32 != DWC_SOF_INTR_MASK)
+# endif
+ DWC_DEBUGPL (DBG_HCD, "\n");
+#endif
+
+ }
+
+ return retval;
+}
+
+#ifdef DWC_TRACK_MISSED_SOFS
+#warning Compiling code to track missed SOFs
+#define FRAME_NUM_ARRAY_SIZE 1000
+/**
+ * This function is for debug only.
+ */
+static inline void track_missed_sofs(uint16_t _curr_frame_number) {
+ static uint16_t frame_num_array[FRAME_NUM_ARRAY_SIZE];
+ static uint16_t last_frame_num_array[FRAME_NUM_ARRAY_SIZE];
+ static int frame_num_idx = 0;
+ static uint16_t last_frame_num = DWC_HFNUM_MAX_FRNUM;
+ static int dumped_frame_num_array = 0;
+
+ if (frame_num_idx < FRAME_NUM_ARRAY_SIZE) {
+ if ((((last_frame_num + 1) & DWC_HFNUM_MAX_FRNUM) != _curr_frame_number)) {
+ frame_num_array[frame_num_idx] = _curr_frame_number;
+ last_frame_num_array[frame_num_idx++] = last_frame_num;
+ }
+ } else if (!dumped_frame_num_array) {
+ int i;
+ printk(KERN_EMERG USB_DWC "Frame Last Frame\n");
+ printk(KERN_EMERG USB_DWC "----- ----------\n");
+ for (i = 0; i < FRAME_NUM_ARRAY_SIZE; i++) {
+ printk(KERN_EMERG USB_DWC "0x%04x 0x%04x\n",
+ frame_num_array[i], last_frame_num_array[i]);
+ }
+ dumped_frame_num_array = 1;
+ }
+ last_frame_num = _curr_frame_number;
+}
+#endif
+
+/**
+ * Handles the start-of-frame interrupt in host mode. Non-periodic
+ * transactions may be queued to the DWC_otg controller for the current
+ * (micro)frame. Periodic transactions may be queued to the controller for the
+ * next (micro)frame.
+ */
+int32_t dwc_otg_hcd_handle_sof_intr (dwc_otg_hcd_t *_hcd)
+{
+ hfnum_data_t hfnum;
+ struct list_head *qh_entry;
+ dwc_otg_qh_t *qh;
+ dwc_otg_transaction_type_e tr_type;
+ gintsts_data_t gintsts = {.d32 = 0};
+
+ hfnum.d32 = dwc_read_reg32(&_hcd->core_if->host_if->host_global_regs->hfnum);
+
+#ifdef DEBUG_SOF
+ DWC_DEBUGPL(DBG_HCD, "--Start of Frame Interrupt--\n");
+#endif
+
+ _hcd->frame_number = hfnum.b.frnum;
+
+#ifdef DEBUG
+ _hcd->frrem_accum += hfnum.b.frrem;
+ _hcd->frrem_samples++;
+#endif
+
+#ifdef DWC_TRACK_MISSED_SOFS
+ track_missed_sofs(_hcd->frame_number);
+#endif
+
+ /* Determine whether any periodic QHs should be executed. */
+ qh_entry = _hcd->periodic_sched_inactive.next;
+ while (qh_entry != &_hcd->periodic_sched_inactive) {
+ qh = list_entry(qh_entry, dwc_otg_qh_t, qh_list_entry);
+ qh_entry = qh_entry->next;
+ if (dwc_frame_num_le(qh->sched_frame, _hcd->frame_number)) {
+ /*
+ * Move QH to the ready list to be executed next
+ * (micro)frame.
+ */
+ list_move(&qh->qh_list_entry, &_hcd->periodic_sched_ready);
+ }
+ }
+
+ tr_type = dwc_otg_hcd_select_transactions(_hcd);
+ if (tr_type != DWC_OTG_TRANSACTION_NONE) {
+ dwc_otg_hcd_queue_transactions(_hcd, tr_type);
+ }
+
+ /* Clear interrupt */
+ gintsts.b.sofintr = 1;
+ dwc_write_reg32(&_hcd->core_if->core_global_regs->gintsts, gintsts.d32);
+
+ return 1;
+}
+
+/** Handles the Rx Status Queue Level Interrupt, which indicates that there is at
+ * least one packet in the Rx FIFO. The packets are moved from the FIFO to
+ * memory if the DWC_otg controller is operating in Slave mode. */
+int32_t dwc_otg_hcd_handle_rx_status_q_level_intr (dwc_otg_hcd_t *_dwc_otg_hcd)
+{
+ host_grxsts_data_t grxsts;
+ dwc_hc_t *hc = NULL;
+
+ DWC_DEBUGPL(DBG_HCD, "--RxStsQ Level Interrupt--\n");
+
+ grxsts.d32 = dwc_read_reg32(&_dwc_otg_hcd->core_if->core_global_regs->grxstsp);
+
+ hc = _dwc_otg_hcd->hc_ptr_array[grxsts.b.chnum];
+
+ /* Packet Status */
+ DWC_DEBUGPL(DBG_HCDV, " Ch num = %d\n", grxsts.b.chnum);
+ DWC_DEBUGPL(DBG_HCDV, " Count = %d\n", grxsts.b.bcnt);
+ DWC_DEBUGPL(DBG_HCDV, " DPID = %d, hc.dpid = %d\n", grxsts.b.dpid, hc->data_pid_start);
+ DWC_DEBUGPL(DBG_HCDV, " PStatus = %d\n", grxsts.b.pktsts);
+
+ switch (grxsts.b.pktsts) {
+ case DWC_GRXSTS_PKTSTS_IN:
+ /* Read the data into the host buffer. */
+ if (grxsts.b.bcnt > 0) {
+ dwc_otg_read_packet(_dwc_otg_hcd->core_if,
+ hc->xfer_buff,
+ grxsts.b.bcnt);
+
+ /* Update the HC fields for the next packet received. */
+ hc->xfer_count += grxsts.b.bcnt;
+ hc->xfer_buff += grxsts.b.bcnt;
+ }
+
+ case DWC_GRXSTS_PKTSTS_IN_XFER_COMP:
+ case DWC_GRXSTS_PKTSTS_DATA_TOGGLE_ERR:
+ case DWC_GRXSTS_PKTSTS_CH_HALTED:
+ /* Handled in interrupt, just ignore data */
+ break;
+ default:
+ DWC_ERROR ("RX_STS_Q Interrupt: Unknown status %d\n", grxsts.b.pktsts);
+ break;
+ }
+
+ return 1;
+}
+
+/** This interrupt occurs when the non-periodic Tx FIFO is half-empty. More
+ * data packets may be written to the FIFO for OUT transfers. More requests
+ * may be written to the non-periodic request queue for IN transfers. This
+ * interrupt is enabled only in Slave mode. */
+int32_t dwc_otg_hcd_handle_np_tx_fifo_empty_intr (dwc_otg_hcd_t *_dwc_otg_hcd)
+{
+ DWC_DEBUGPL(DBG_HCD, "--Non-Periodic TxFIFO Empty Interrupt--\n");
+ dwc_otg_hcd_queue_transactions(_dwc_otg_hcd,
+ DWC_OTG_TRANSACTION_NON_PERIODIC);
+ return 1;
+}
+
+/** This interrupt occurs when the periodic Tx FIFO is half-empty. More data
+ * packets may be written to the FIFO for OUT transfers. More requests may be
+ * written to the periodic request queue for IN transfers. This interrupt is
+ * enabled only in Slave mode. */
+int32_t dwc_otg_hcd_handle_perio_tx_fifo_empty_intr (dwc_otg_hcd_t *_dwc_otg_hcd)
+{
+ DWC_DEBUGPL(DBG_HCD, "--Periodic TxFIFO Empty Interrupt--\n");
+ dwc_otg_hcd_queue_transactions(_dwc_otg_hcd,
+ DWC_OTG_TRANSACTION_PERIODIC);
+ return 1;
+}
+
+/** There are multiple conditions that can cause a port interrupt. This function
+ * determines which interrupt conditions have occurred and handles them
+ * appropriately. */
+int32_t dwc_otg_hcd_handle_port_intr (dwc_otg_hcd_t *_dwc_otg_hcd)
+{
+ int retval = 0;
+ hprt0_data_t hprt0;
+ hprt0_data_t hprt0_modify;
+
+ hprt0.d32 = dwc_read_reg32(_dwc_otg_hcd->core_if->host_if->hprt0);
+ hprt0_modify.d32 = dwc_read_reg32(_dwc_otg_hcd->core_if->host_if->hprt0);
+
+ /* Clear appropriate bits in HPRT0 to clear the interrupt bit in
+ * GINTSTS */
+
+ hprt0_modify.b.prtena = 0;
+ hprt0_modify.b.prtconndet = 0;
+ hprt0_modify.b.prtenchng = 0;
+ hprt0_modify.b.prtovrcurrchng = 0;
+
+ /* Port Connect Detected
+ * Set flag and clear if detected */
+ if (hprt0.b.prtconndet) {
+ DWC_DEBUGPL(DBG_HCD, "--Port Interrupt HPRT0=0x%08x "
+ "Port Connect Detected--\n", hprt0.d32);
+ _dwc_otg_hcd->flags.b.port_connect_status_change = 1;
+ _dwc_otg_hcd->flags.b.port_connect_status = 1;
+ hprt0_modify.b.prtconndet = 1;
+
+ /* B-Device has connected, Delete the connection timer. */
+ del_timer( &_dwc_otg_hcd->conn_timer );
+
+ /* The Hub driver asserts a reset when it sees port connect
+ * status change flag */
+ retval |= 1;
+ }
+
+ /* Port Enable Changed
+ * Clear if detected - Set internal flag if disabled */
+ if (hprt0.b.prtenchng) {
+ DWC_DEBUGPL(DBG_HCD, " --Port Interrupt HPRT0=0x%08x "
+ "Port Enable Changed--\n", hprt0.d32);
+ hprt0_modify.b.prtenchng = 1;
+ if (hprt0.b.prtena == 1) {
+ int do_reset = 0;
+ dwc_otg_core_params_t *params = _dwc_otg_hcd->core_if->core_params;
+ dwc_otg_core_global_regs_t *global_regs = _dwc_otg_hcd->core_if->core_global_regs;
+ dwc_otg_host_if_t *host_if = _dwc_otg_hcd->core_if->host_if;
+
+ /* Check if we need to adjust the PHY clock speed for
+ * low power and adjust it */
+ if (params->host_support_fs_ls_low_power)
+ {
+ gusbcfg_data_t usbcfg;
+
+ usbcfg.d32 = dwc_read_reg32 (&global_regs->gusbcfg);
+
+ if ((hprt0.b.prtspd == DWC_HPRT0_PRTSPD_LOW_SPEED) ||
+ (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_FULL_SPEED))
+ {
+ /*
+ * Low power
+ */
+ hcfg_data_t hcfg;
+ if (usbcfg.b.phylpwrclksel == 0) {
+ /* Set PHY low power clock select for FS/LS devices */
+ usbcfg.b.phylpwrclksel = 1;
+ dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32);
+ do_reset = 1;
+ }
+
+ hcfg.d32 = dwc_read_reg32(&host_if->host_global_regs->hcfg);
+
+ if ((hprt0.b.prtspd == DWC_HPRT0_PRTSPD_LOW_SPEED) &&
+ (params->host_ls_low_power_phy_clk ==
+ DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ))
+ {
+ /* 6 MHZ */
+ DWC_DEBUGPL(DBG_CIL, "FS_PHY programming HCFG to 6 MHz (Low Power)\n");
+ if (hcfg.b.fslspclksel != DWC_HCFG_6_MHZ) {
+ hcfg.b.fslspclksel = DWC_HCFG_6_MHZ;
+ dwc_write_reg32(&host_if->host_global_regs->hcfg,
+ hcfg.d32);
+ do_reset = 1;
+ }
+ }
+ else {
+ /* 48 MHZ */
+ DWC_DEBUGPL(DBG_CIL, "FS_PHY programming HCFG to 48 MHz ()\n");
+ if (hcfg.b.fslspclksel != DWC_HCFG_48_MHZ) {
+ hcfg.b.fslspclksel = DWC_HCFG_48_MHZ;
+ dwc_write_reg32(&host_if->host_global_regs->hcfg,
+ hcfg.d32);
+ do_reset = 1;
+ }
+ }
+ }
+ else {
+ /*
+ * Not low power
+ */
+ if (usbcfg.b.phylpwrclksel == 1) {
+ usbcfg.b.phylpwrclksel = 0;
+ dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32);
+ do_reset = 1;
+ }
+ }
+
+ if (do_reset) {
+ tasklet_schedule(_dwc_otg_hcd->reset_tasklet);
+ }
+ }
+
+ if (!do_reset) {
+ /* Port has been enabled set the reset change flag */
+ _dwc_otg_hcd->flags.b.port_reset_change = 1;
+ }
+
+ } else {
+ _dwc_otg_hcd->flags.b.port_enable_change = 1;
+ }
+ retval |= 1;
+ }
+
+ /** Overcurrent Change Interrupt */
+ if (hprt0.b.prtovrcurrchng) {
+ DWC_DEBUGPL(DBG_HCD, " --Port Interrupt HPRT0=0x%08x "
+ "Port Overcurrent Changed--\n", hprt0.d32);
+ _dwc_otg_hcd->flags.b.port_over_current_change = 1;
+ hprt0_modify.b.prtovrcurrchng = 1;
+ retval |= 1;
+ }
+
+ /* Clear Port Interrupts */
+ dwc_write_reg32(_dwc_otg_hcd->core_if->host_if->hprt0, hprt0_modify.d32);
+
+ return retval;
+}
+
+
+/** This interrupt indicates that one or more host channels has a pending
+ * interrupt. There are multiple conditions that can cause each host channel
+ * interrupt. This function determines which conditions have occurred for each
+ * host channel interrupt and handles them appropriately. */
+int32_t dwc_otg_hcd_handle_hc_intr (dwc_otg_hcd_t *_dwc_otg_hcd)
+{
+ int i;
+ int retval = 0;
+ haint_data_t haint;
+
+ /* Clear appropriate bits in HCINTn to clear the interrupt bit in
+ * GINTSTS */
+
+ haint.d32 = dwc_otg_read_host_all_channels_intr(_dwc_otg_hcd->core_if);
+
+ for (i=0; i<_dwc_otg_hcd->core_if->core_params->host_channels; i++) {
+ if (haint.b2.chint & (1 << i)) {
+ retval |= dwc_otg_hcd_handle_hc_n_intr (_dwc_otg_hcd, i);
+ }
+ }
+
+ return retval;
+}
+
+/* Macro used to clear one channel interrupt */
+#define clear_hc_int(_hc_regs_,_intr_) \
+do { \
+ hcint_data_t hcint_clear = {.d32 = 0}; \
+ hcint_clear.b._intr_ = 1; \
+ dwc_write_reg32(&((_hc_regs_)->hcint), hcint_clear.d32); \
+} while (0)
+
+/*
+ * Macro used to disable one channel interrupt. Channel interrupts are
+ * disabled when the channel is halted or released by the interrupt handler.
+ * There is no need to handle further interrupts of that type until the
+ * channel is re-assigned. In fact, subsequent handling may cause crashes
+ * because the channel structures are cleaned up when the channel is released.
+ */
+#define disable_hc_int(_hc_regs_,_intr_) \
+do { \
+ hcintmsk_data_t hcintmsk = {.d32 = 0}; \
+ hcintmsk.b._intr_ = 1; \
+ dwc_modify_reg32(&((_hc_regs_)->hcintmsk), hcintmsk.d32, 0); \
+} while (0)
+
+/**
+ * Gets the actual length of a transfer after the transfer halts. _halt_status
+ * holds the reason for the halt.
+ *
+ * For IN transfers where _halt_status is DWC_OTG_HC_XFER_COMPLETE,
+ * *_short_read is set to 1 upon return if less than the requested
+ * number of bytes were transferred. Otherwise, *_short_read is set to 0 upon
+ * return. _short_read may also be NULL on entry, in which case it remains
+ * unchanged.
+ */
+static uint32_t get_actual_xfer_length(dwc_hc_t *_hc,
+ dwc_otg_hc_regs_t *_hc_regs,
+ dwc_otg_qtd_t *_qtd,
+ dwc_otg_halt_status_e _halt_status,
+ int *_short_read)
+{
+ hctsiz_data_t hctsiz;
+ uint32_t length;
+
+ if (_short_read != NULL) {
+ *_short_read = 0;
+ }
+ hctsiz.d32 = dwc_read_reg32(&_hc_regs->hctsiz);
+
+ if (_halt_status == DWC_OTG_HC_XFER_COMPLETE) {
+ if (_hc->ep_is_in) {
+ length = _hc->xfer_len - hctsiz.b.xfersize;
+ if (_short_read != NULL) {
+ *_short_read = (hctsiz.b.xfersize != 0);
+ }
+ } else if (_hc->qh->do_split) {
+ length = _qtd->ssplit_out_xfer_count;
+ } else {
+ length = _hc->xfer_len;
+ }
+ } else {
+ /*
+ * Must use the hctsiz.pktcnt field to determine how much data
+ * has been transferred. This field reflects the number of
+ * packets that have been transferred via the USB. This is
+ * always an integral number of packets if the transfer was
+ * halted before its normal completion. (Can't use the
+ * hctsiz.xfersize field because that reflects the number of
+ * bytes transferred via the AHB, not the USB).
+ */
+ length = (_hc->start_pkt_count - hctsiz.b.pktcnt) * _hc->max_packet;
+ }
+
+ return length;
+}
+
+/**
+ * Updates the state of the URB after a Transfer Complete interrupt on the
+ * host channel. Updates the actual_length field of the URB based on the
+ * number of bytes transferred via the host channel. Sets the URB status
+ * if the data transfer is finished.
+ *
+ * @return 1 if the data transfer specified by the URB is completely finished,
+ * 0 otherwise.
+ */
+static int update_urb_state_xfer_comp(dwc_hc_t *_hc,
+ dwc_otg_hc_regs_t * _hc_regs, struct urb *_urb,
+ dwc_otg_qtd_t * _qtd, int *status)
+{
+ int xfer_done = 0;
+ int short_read = 0;
+
+ _urb->actual_length += get_actual_xfer_length(_hc, _hc_regs, _qtd,
+ DWC_OTG_HC_XFER_COMPLETE,
+ &short_read);
+
+ if (short_read || (_urb->actual_length == _urb->transfer_buffer_length)) {
+ xfer_done = 1;
+ if (short_read && (_urb->transfer_flags & URB_SHORT_NOT_OK)) {
+ *status = -EREMOTEIO;
+ } else {
+ *status = 0;
+ }
+ }
+
+#ifdef DEBUG
+ {
+ hctsiz_data_t hctsiz;
+ hctsiz.d32 = dwc_read_reg32(&_hc_regs->hctsiz);
+ DWC_DEBUGPL(DBG_HCDV, "DWC_otg: %s: %s, channel %d\n",
+ __func__, (_hc->ep_is_in ? "IN" : "OUT"), _hc->hc_num);
+ DWC_DEBUGPL(DBG_HCDV, " hc->xfer_len %d\n", _hc->xfer_len);
+ DWC_DEBUGPL(DBG_HCDV, " hctsiz.xfersize %d\n", hctsiz.b.xfersize);
+ DWC_DEBUGPL(DBG_HCDV, " urb->transfer_buffer_length %d\n",
+ _urb->transfer_buffer_length);
+ DWC_DEBUGPL(DBG_HCDV, " urb->actual_length %d\n", _urb->actual_length);
+ DWC_DEBUGPL(DBG_HCDV, " short_read %d, xfer_done %d\n",
+ short_read, xfer_done);
+ }
+#endif
+
+ return xfer_done;
+}
+
+/*
+ * Save the starting data toggle for the next transfer. The data toggle is
+ * saved in the QH for non-control transfers and it's saved in the QTD for
+ * control transfers.
+ */
+static void save_data_toggle(dwc_hc_t *_hc,
+ dwc_otg_hc_regs_t *_hc_regs,
+ dwc_otg_qtd_t *_qtd)
+{
+ hctsiz_data_t hctsiz;
+ hctsiz.d32 = dwc_read_reg32(&_hc_regs->hctsiz);
+
+ if (_hc->ep_type != DWC_OTG_EP_TYPE_CONTROL) {
+ dwc_otg_qh_t *qh = _hc->qh;
+ if (hctsiz.b.pid == DWC_HCTSIZ_DATA0) {
+ qh->data_toggle = DWC_OTG_HC_PID_DATA0;
+ } else {
+ qh->data_toggle = DWC_OTG_HC_PID_DATA1;
+ }
+ } else {
+ if (hctsiz.b.pid == DWC_HCTSIZ_DATA0) {
+ _qtd->data_toggle = DWC_OTG_HC_PID_DATA0;
+ } else {
+ _qtd->data_toggle = DWC_OTG_HC_PID_DATA1;
+ }
+ }
+}
+
+/**
+ * Frees the first QTD in the QH's list if free_qtd is 1. For non-periodic
+ * QHs, removes the QH from the active non-periodic schedule. If any QTDs are
+ * still linked to the QH, the QH is added to the end of the inactive
+ * non-periodic schedule. For periodic QHs, removes the QH from the periodic
+ * schedule if no more QTDs are linked to the QH.
+ */
+static void deactivate_qh(dwc_otg_hcd_t *_hcd,
+ dwc_otg_qh_t *_qh,
+ int free_qtd)
+{
+ int continue_split = 0;
+ dwc_otg_qtd_t *qtd;
+
+ DWC_DEBUGPL(DBG_HCDV, " %s(%p,%p,%d)\n", __func__, _hcd, _qh, free_qtd);
+
+ qtd = list_entry(_qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry);
+
+ if (qtd->complete_split) {
+ continue_split = 1;
+ }
+ else if ((qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_MID) ||
+ (qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_END))
+ {
+ continue_split = 1;
+ }
+
+ if (free_qtd) {
+ /*
+ * Note that this was previously a call to
+ * dwc_otg_hcd_qtd_remove_and_free(qtd), which frees the qtd.
+ * However, that call frees the qtd memory, and we continue in the
+ * interrupt logic to access it many more times, including writing
+ * to it. With slub debugging on, it is clear that we were writing
+ * to memory we had freed.
+ * Call this instead, and now I have moved the freeing of the memory to
+ * the end of processing this interrupt.
+ */
+ //dwc_otg_hcd_qtd_remove_and_free(qtd);
+ dwc_otg_hcd_qtd_remove(qtd);
+
+ continue_split = 0;
+ }
+
+ _qh->channel = NULL;
+ _qh->qtd_in_process = NULL;
+ dwc_otg_hcd_qh_deactivate(_hcd, _qh, continue_split);
+}
+
+/**
+ * Updates the state of an Isochronous URB when the transfer is stopped for
+ * any reason. The fields of the current entry in the frame descriptor array
+ * are set based on the transfer state and the input _halt_status. Completes
+ * the Isochronous URB if all the URB frames have been completed.
+ *
+ * @return DWC_OTG_HC_XFER_COMPLETE if there are more frames remaining to be
+ * transferred in the URB. Otherwise return DWC_OTG_HC_XFER_URB_COMPLETE.
+ */
+static dwc_otg_halt_status_e
+update_isoc_urb_state(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t *_hc,
+ dwc_otg_hc_regs_t *_hc_regs,
+ dwc_otg_qtd_t *_qtd,
+ dwc_otg_halt_status_e _halt_status)
+{
+ struct urb *urb = _qtd->urb;
+ dwc_otg_halt_status_e ret_val = _halt_status;
+ struct usb_iso_packet_descriptor *frame_desc;
+
+ frame_desc = &urb->iso_frame_desc[_qtd->isoc_frame_index];
+ switch (_halt_status) {
+ case DWC_OTG_HC_XFER_COMPLETE:
+ frame_desc->status = 0;
+ frame_desc->actual_length =
+ get_actual_xfer_length(_hc, _hc_regs, _qtd,
+ _halt_status, NULL);
+ break;
+ case DWC_OTG_HC_XFER_FRAME_OVERRUN:
+ urb->error_count++;
+ if (_hc->ep_is_in) {
+ frame_desc->status = -ENOSR;
+ } else {
+ frame_desc->status = -ECOMM;
+ }
+ frame_desc->actual_length = 0;
+ break;
+ case DWC_OTG_HC_XFER_BABBLE_ERR:
+ urb->error_count++;
+ frame_desc->status = -EOVERFLOW;
+ /* Don't need to update actual_length in this case. */
+ break;
+ case DWC_OTG_HC_XFER_XACT_ERR:
+ urb->error_count++;
+ frame_desc->status = -EPROTO;
+ frame_desc->actual_length =
+ get_actual_xfer_length(_hc, _hc_regs, _qtd,
+ _halt_status, NULL);
+ default:
+ DWC_ERROR("%s: Unhandled _halt_status (%d)\n", __func__,
+ _halt_status);
+ BUG();
+ break;
+ }
+
+ if (++_qtd->isoc_frame_index == urb->number_of_packets) {
+ /*
+ * urb->status is not used for isoc transfers.
+ * The individual frame_desc statuses are used instead.
+ */
+ dwc_otg_hcd_complete_urb(_hcd, urb, 0);
+ ret_val = DWC_OTG_HC_XFER_URB_COMPLETE;
+ } else {
+ ret_val = DWC_OTG_HC_XFER_COMPLETE;
+ }
+
+ return ret_val;
+}
+
+/**
+ * Releases a host channel for use by other transfers. Attempts to select and
+ * queue more transactions since at least one host channel is available.
+ *
+ * @param _hcd The HCD state structure.
+ * @param _hc The host channel to release.
+ * @param _qtd The QTD associated with the host channel. This QTD may be freed
+ * if the transfer is complete or an error has occurred.
+ * @param _halt_status Reason the channel is being released. This status
+ * determines the actions taken by this function.
+ */
+static void release_channel(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t *_hc,
+ dwc_otg_qtd_t *_qtd,
+ dwc_otg_halt_status_e _halt_status,
+ int *must_free)
+{
+ dwc_otg_transaction_type_e tr_type;
+ int free_qtd;
+ dwc_otg_qh_t * _qh;
+ int deact = 1;
+ int retry_delay = 1;
+ unsigned long flags;
+
+ DWC_DEBUGPL(DBG_HCDV, " %s: channel %d, halt_status %d\n", __func__,
+ _hc->hc_num, _halt_status);
+
+ switch (_halt_status) {
+ case DWC_OTG_HC_XFER_NYET:
+ case DWC_OTG_HC_XFER_NAK:
+ if (_halt_status == DWC_OTG_HC_XFER_NYET) {
+ retry_delay = nyet_deferral_delay;
+ } else {
+ retry_delay = nak_deferral_delay;
+ }
+ free_qtd = 0;
+ if (deferral_on && _hc->do_split) {
+ _qh = _hc->qh;
+ if (_qh) {
+ deact = dwc_otg_hcd_qh_deferr(_hcd, _qh , retry_delay);
+ }
+ }
+ break;
+ case DWC_OTG_HC_XFER_URB_COMPLETE:
+ free_qtd = 1;
+ break;
+ case DWC_OTG_HC_XFER_AHB_ERR:
+ case DWC_OTG_HC_XFER_STALL:
+ case DWC_OTG_HC_XFER_BABBLE_ERR:
+ free_qtd = 1;
+ break;
+ case DWC_OTG_HC_XFER_XACT_ERR:
+ if (_qtd->error_count >= 3) {
+ DWC_DEBUGPL(DBG_HCDV, " Complete URB with transaction error\n");
+ free_qtd = 1;
+ //_qtd->urb->status = -EPROTO;
+ dwc_otg_hcd_complete_urb(_hcd, _qtd->urb, -EPROTO);
+ } else {
+ free_qtd = 0;
+ }
+ break;
+ case DWC_OTG_HC_XFER_URB_DEQUEUE:
+ /*
+ * The QTD has already been removed and the QH has been
+ * deactivated. Don't want to do anything except release the
+ * host channel and try to queue more transfers.
+ */
+ goto cleanup;
+ case DWC_OTG_HC_XFER_NO_HALT_STATUS:
+ DWC_ERROR("%s: No halt_status, channel %d\n", __func__, _hc->hc_num);
+ free_qtd = 0;
+ break;
+ default:
+ free_qtd = 0;
+ break;
+ }
+ if (free_qtd) {
+ /* Only change must_free to true (do not set to zero here -- it is
+ * pre-initialized to zero).
+ */
+ *must_free = 1;
+ }
+ if (deact) {
+ deactivate_qh(_hcd, _hc->qh, free_qtd);
+ }
+ cleanup:
+ /*
+ * Release the host channel for use by other transfers. The cleanup
+ * function clears the channel interrupt enables and conditions, so
+ * there's no need to clear the Channel Halted interrupt separately.
+ */
+ dwc_otg_hc_cleanup(_hcd->core_if, _hc);
+ list_add_tail(&_hc->hc_list_entry, &_hcd->free_hc_list);
+
+ local_irq_save(flags);
+ _hcd->available_host_channels++;
+ local_irq_restore(flags);
+ /* Try to queue more transfers now that there's a free channel, */
+ /* unless erratum_usb09_patched is set */
+ if (!erratum_usb09_patched) {
+ tr_type = dwc_otg_hcd_select_transactions(_hcd);
+ if (tr_type != DWC_OTG_TRANSACTION_NONE) {
+ dwc_otg_hcd_queue_transactions(_hcd, tr_type);
+ }
+ }
+}
+
+/**
+ * Halts a host channel. If the channel cannot be halted immediately because
+ * the request queue is full, this function ensures that the FIFO empty
+ * interrupt for the appropriate queue is enabled so that the halt request can
+ * be queued when there is space in the request queue.
+ *
+ * This function may also be called in DMA mode. In that case, the channel is
+ * simply released since the core always halts the channel automatically in
+ * DMA mode.
+ */
+static void halt_channel(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t *_hc,
+ dwc_otg_qtd_t *_qtd,
+ dwc_otg_halt_status_e _halt_status, int *must_free)
+{
+ if (_hcd->core_if->dma_enable) {
+ release_channel(_hcd, _hc, _qtd, _halt_status, must_free);
+ return;
+ }
+
+ /* Slave mode processing... */
+ dwc_otg_hc_halt(_hcd->core_if, _hc, _halt_status);
+
+ if (_hc->halt_on_queue) {
+ gintmsk_data_t gintmsk = {.d32 = 0};
+ dwc_otg_core_global_regs_t *global_regs;
+ global_regs = _hcd->core_if->core_global_regs;
+
+ if (_hc->ep_type == DWC_OTG_EP_TYPE_CONTROL ||
+ _hc->ep_type == DWC_OTG_EP_TYPE_BULK) {
+ /*
+ * Make sure the Non-periodic Tx FIFO empty interrupt
+ * is enabled so that the non-periodic schedule will
+ * be processed.
+ */
+ gintmsk.b.nptxfempty = 1;
+ dwc_modify_reg32(&global_regs->gintmsk, 0, gintmsk.d32);
+ } else {
+ /*
+ * Move the QH from the periodic queued schedule to
+ * the periodic assigned schedule. This allows the
+ * halt to be queued when the periodic schedule is
+ * processed.
+ */
+ list_move(&_hc->qh->qh_list_entry,
+ &_hcd->periodic_sched_assigned);
+
+ /*
+ * Make sure the Periodic Tx FIFO Empty interrupt is
+ * enabled so that the periodic schedule will be
+ * processed.
+ */
+ gintmsk.b.ptxfempty = 1;
+ dwc_modify_reg32(&global_regs->gintmsk, 0, gintmsk.d32);
+ }
+ }
+}
+
+/**
+ * Performs common cleanup for non-periodic transfers after a Transfer
+ * Complete interrupt. This function should be called after any endpoint type
+ * specific handling is finished to release the host channel.
+ */
+static void complete_non_periodic_xfer(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t *_hc,
+ dwc_otg_hc_regs_t *_hc_regs,
+ dwc_otg_qtd_t *_qtd,
+ dwc_otg_halt_status_e _halt_status, int *must_free)
+{
+ hcint_data_t hcint;
+
+ _qtd->error_count = 0;
+
+ hcint.d32 = dwc_read_reg32(&_hc_regs->hcint);
+ if (hcint.b.nyet) {
+ /*
+ * Got a NYET on the last transaction of the transfer. This
+ * means that the endpoint should be in the PING state at the
+ * beginning of the next transfer.
+ */
+ _hc->qh->ping_state = 1;
+ clear_hc_int(_hc_regs,nyet);
+ }
+
+ /*
+ * Always halt and release the host channel to make it available for
+ * more transfers. There may still be more phases for a control
+ * transfer or more data packets for a bulk transfer at this point,
+ * but the host channel is still halted. A channel will be reassigned
+ * to the transfer when the non-periodic schedule is processed after
+ * the channel is released. This allows transactions to be queued
+ * properly via dwc_otg_hcd_queue_transactions, which also enables the
+ * Tx FIFO Empty interrupt if necessary.
+ */
+ if (_hc->ep_is_in) {
+ /*
+ * IN transfers in Slave mode require an explicit disable to
+ * halt the channel. (In DMA mode, this call simply releases
+ * the channel.)
+ */
+ halt_channel(_hcd, _hc, _qtd, _halt_status, must_free);
+ } else {
+ /*
+ * The channel is automatically disabled by the core for OUT
+ * transfers in Slave mode.
+ */
+ release_channel(_hcd, _hc, _qtd, _halt_status, must_free);
+ }
+}
+
+/**
+ * Performs common cleanup for periodic transfers after a Transfer Complete
+ * interrupt. This function should be called after any endpoint type specific
+ * handling is finished to release the host channel.
+ */
+static void complete_periodic_xfer(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t *_hc,
+ dwc_otg_hc_regs_t *_hc_regs,
+ dwc_otg_qtd_t *_qtd,
+ dwc_otg_halt_status_e _halt_status, int *must_free)
+{
+ hctsiz_data_t hctsiz;
+ _qtd->error_count = 0;
+
+ hctsiz.d32 = dwc_read_reg32(&_hc_regs->hctsiz);
+ if (!_hc->ep_is_in || hctsiz.b.pktcnt == 0) {
+ /* Core halts channel in these cases. */
+ release_channel(_hcd, _hc, _qtd, _halt_status, must_free);
+ } else {
+ /* Flush any outstanding requests from the Tx queue. */
+ halt_channel(_hcd, _hc, _qtd, _halt_status, must_free);
+ }
+}
+
+/**
+ * Handles a host channel Transfer Complete interrupt. This handler may be
+ * called in either DMA mode or Slave mode.
+ */
+static int32_t handle_hc_xfercomp_intr(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t *_hc,
+ dwc_otg_hc_regs_t *_hc_regs,
+ dwc_otg_qtd_t *_qtd, int *must_free)
+{
+ int urb_xfer_done;
+ dwc_otg_halt_status_e halt_status = DWC_OTG_HC_XFER_COMPLETE;
+ struct urb *urb = _qtd->urb;
+ int pipe_type = usb_pipetype(urb->pipe);
+ int status = -EINPROGRESS;
+
+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: "
+ "Transfer Complete--\n", _hc->hc_num);
+
+ /*
+ * Handle xfer complete on CSPLIT.
+ */
+ if (_hc->qh->do_split) {
+ _qtd->complete_split = 0;
+ }
+
+ /* Update the QTD and URB states. */
+ switch (pipe_type) {
+ case PIPE_CONTROL:
+ switch (_qtd->control_phase) {
+ case DWC_OTG_CONTROL_SETUP:
+ if (urb->transfer_buffer_length > 0) {
+ _qtd->control_phase = DWC_OTG_CONTROL_DATA;
+ } else {
+ _qtd->control_phase = DWC_OTG_CONTROL_STATUS;
+ }
+ DWC_DEBUGPL(DBG_HCDV, " Control setup transaction done\n");
+ halt_status = DWC_OTG_HC_XFER_COMPLETE;
+ break;
+ case DWC_OTG_CONTROL_DATA: {
+ urb_xfer_done = update_urb_state_xfer_comp(_hc, _hc_regs,urb, _qtd, &status);
+ if (urb_xfer_done) {
+ _qtd->control_phase = DWC_OTG_CONTROL_STATUS;
+ DWC_DEBUGPL(DBG_HCDV, " Control data transfer done\n");
+ } else {
+ save_data_toggle(_hc, _hc_regs, _qtd);
+ }
+ halt_status = DWC_OTG_HC_XFER_COMPLETE;
+ break;
+ }
+ case DWC_OTG_CONTROL_STATUS:
+ DWC_DEBUGPL(DBG_HCDV, " Control transfer complete\n");
+ if (status == -EINPROGRESS) {
+ status = 0;
+ }
+ dwc_otg_hcd_complete_urb(_hcd, urb, status);
+ halt_status = DWC_OTG_HC_XFER_URB_COMPLETE;
+ break;
+ }
+
+ complete_non_periodic_xfer(_hcd, _hc, _hc_regs, _qtd,
+ halt_status, must_free);
+ break;
+ case PIPE_BULK:
+ DWC_DEBUGPL(DBG_HCDV, " Bulk transfer complete\n");
+ urb_xfer_done = update_urb_state_xfer_comp(_hc, _hc_regs, urb, _qtd, &status);
+ if (urb_xfer_done) {
+ dwc_otg_hcd_complete_urb(_hcd, urb, status);
+ halt_status = DWC_OTG_HC_XFER_URB_COMPLETE;
+ } else {
+ halt_status = DWC_OTG_HC_XFER_COMPLETE;
+ }
+
+ save_data_toggle(_hc, _hc_regs, _qtd);
+ complete_non_periodic_xfer(_hcd, _hc, _hc_regs, _qtd,halt_status, must_free);
+ break;
+ case PIPE_INTERRUPT:
+ DWC_DEBUGPL(DBG_HCDV, " Interrupt transfer complete\n");
+ update_urb_state_xfer_comp(_hc, _hc_regs, urb, _qtd, &status);
+
+ /*
+ * Interrupt URB is done on the first transfer complete
+ * interrupt.
+ */
+ dwc_otg_hcd_complete_urb(_hcd, urb, status);
+ save_data_toggle(_hc, _hc_regs, _qtd);
+ complete_periodic_xfer(_hcd, _hc, _hc_regs, _qtd,
+ DWC_OTG_HC_XFER_URB_COMPLETE, must_free);
+ break;
+ case PIPE_ISOCHRONOUS:
+ DWC_DEBUGPL(DBG_HCDV, " Isochronous transfer complete\n");
+ if (_qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_ALL)
+ {
+ halt_status = update_isoc_urb_state(_hcd, _hc, _hc_regs, _qtd,
+ DWC_OTG_HC_XFER_COMPLETE);
+ }
+ complete_periodic_xfer(_hcd, _hc, _hc_regs, _qtd, halt_status, must_free);
+ break;
+ }
+
+ disable_hc_int(_hc_regs,xfercompl);
+
+ return 1;
+}
+
+/**
+ * Handles a host channel STALL interrupt. This handler may be called in
+ * either DMA mode or Slave mode.
+ */
+static int32_t handle_hc_stall_intr(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t *_hc,
+ dwc_otg_hc_regs_t *_hc_regs,
+ dwc_otg_qtd_t *_qtd, int *must_free)
+{
+ struct urb *urb = _qtd->urb;
+ int pipe_type = usb_pipetype(urb->pipe);
+
+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: "
+ "STALL Received--\n", _hc->hc_num);
+
+ if (pipe_type == PIPE_CONTROL) {
+ dwc_otg_hcd_complete_urb(_hcd, _qtd->urb, -EPIPE);
+ }
+
+ if (pipe_type == PIPE_BULK || pipe_type == PIPE_INTERRUPT) {
+ dwc_otg_hcd_complete_urb(_hcd, _qtd->urb, -EPIPE);
+ /*
+ * USB protocol requires resetting the data toggle for bulk
+ * and interrupt endpoints when a CLEAR_FEATURE(ENDPOINT_HALT)
+ * setup command is issued to the endpoint. Anticipate the
+ * CLEAR_FEATURE command since a STALL has occurred and reset
+ * the data toggle now.
+ */
+ _hc->qh->data_toggle = 0;
+ }
+
+ halt_channel(_hcd, _hc, _qtd, DWC_OTG_HC_XFER_STALL, must_free);
+ disable_hc_int(_hc_regs,stall);
+
+ return 1;
+}
+
+/*
+ * Updates the state of the URB when a transfer has been stopped due to an
+ * abnormal condition before the transfer completes. Modifies the
+ * actual_length field of the URB to reflect the number of bytes that have
+ * actually been transferred via the host channel.
+ */
+static void update_urb_state_xfer_intr(dwc_hc_t *_hc,
+ dwc_otg_hc_regs_t *_hc_regs,
+ struct urb *_urb,
+ dwc_otg_qtd_t *_qtd,
+ dwc_otg_halt_status_e _halt_status)
+{
+ uint32_t bytes_transferred = get_actual_xfer_length(_hc, _hc_regs, _qtd,
+ _halt_status, NULL);
+ _urb->actual_length += bytes_transferred;
+
+#ifdef DEBUG
+ {
+ hctsiz_data_t hctsiz;
+ hctsiz.d32 = dwc_read_reg32(&_hc_regs->hctsiz);
+ DWC_DEBUGPL(DBG_HCDV, "DWC_otg: %s: %s, channel %d\n",
+ __func__, (_hc->ep_is_in ? "IN" : "OUT"), _hc->hc_num);
+ DWC_DEBUGPL(DBG_HCDV, " _hc->start_pkt_count %d\n", _hc->start_pkt_count);
+ DWC_DEBUGPL(DBG_HCDV, " hctsiz.pktcnt %d\n", hctsiz.b.pktcnt);
+ DWC_DEBUGPL(DBG_HCDV, " _hc->max_packet %d\n", _hc->max_packet);
+ DWC_DEBUGPL(DBG_HCDV, " bytes_transferred %d\n", bytes_transferred);
+ DWC_DEBUGPL(DBG_HCDV, " _urb->actual_length %d\n", _urb->actual_length);
+ DWC_DEBUGPL(DBG_HCDV, " _urb->transfer_buffer_length %d\n",
+ _urb->transfer_buffer_length);
+ }
+#endif
+}
+
+/**
+ * Handles a host channel NAK interrupt. This handler may be called in either
+ * DMA mode or Slave mode.
+ */
+static int32_t handle_hc_nak_intr(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t *_hc,
+ dwc_otg_hc_regs_t *_hc_regs,
+ dwc_otg_qtd_t *_qtd, int *must_free)
+{
+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: "
+ "NAK Received--\n", _hc->hc_num);
+
+ /*
+ * Handle NAK for IN/OUT SSPLIT/CSPLIT transfers, bulk, control, and
+ * interrupt. Re-start the SSPLIT transfer.
+ */
+ if (_hc->do_split) {
+ if (_hc->complete_split) {
+ _qtd->error_count = 0;
+ }
+ _qtd->complete_split = 0;
+ halt_channel(_hcd, _hc, _qtd, DWC_OTG_HC_XFER_NAK, must_free);
+ goto handle_nak_done;
+ }
+
+ switch (usb_pipetype(_qtd->urb->pipe)) {
+ case PIPE_CONTROL:
+ case PIPE_BULK:
+ if (_hcd->core_if->dma_enable && _hc->ep_is_in) {
+ /*
+ * NAK interrupts are enabled on bulk/control IN
+ * transfers in DMA mode for the sole purpose of
+ * resetting the error count after a transaction error
+ * occurs. The core will continue transferring data.
+ */
+ _qtd->error_count = 0;
+ goto handle_nak_done;
+ }
+
+ /*
+ * NAK interrupts normally occur during OUT transfers in DMA
+ * or Slave mode. For IN transfers, more requests will be
+ * queued as request queue space is available.
+ */
+ _qtd->error_count = 0;
+
+ if (!_hc->qh->ping_state) {
+ update_urb_state_xfer_intr(_hc, _hc_regs, _qtd->urb,
+ _qtd, DWC_OTG_HC_XFER_NAK);
+ save_data_toggle(_hc, _hc_regs, _qtd);
+ if (_qtd->urb->dev->speed == USB_SPEED_HIGH) {
+ _hc->qh->ping_state = 1;
+ }
+ }
+
+ /*
+ * Halt the channel so the transfer can be re-started from
+ * the appropriate point or the PING protocol will
+ * start/continue.
+ */
+ halt_channel(_hcd, _hc, _qtd, DWC_OTG_HC_XFER_NAK, must_free);
+ break;
+ case PIPE_INTERRUPT:
+ _qtd->error_count = 0;
+ halt_channel(_hcd, _hc, _qtd, DWC_OTG_HC_XFER_NAK, must_free);
+ break;
+ case PIPE_ISOCHRONOUS:
+ /* Should never get called for isochronous transfers. */
+ BUG();
+ break;
+ }
+
+ handle_nak_done:
+ disable_hc_int(_hc_regs,nak);
+
+ return 1;
+}
+
+/**
+ * Handles a host channel ACK interrupt. This interrupt is enabled when
+ * performing the PING protocol in Slave mode, when errors occur during
+ * either Slave mode or DMA mode, and during Start Split transactions.
+ */
+static int32_t handle_hc_ack_intr(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t * _hc, dwc_otg_hc_regs_t * _hc_regs, dwc_otg_qtd_t * _qtd, int *must_free)
+{
+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: "
+ "ACK Received--\n", _hc->hc_num);
+
+ if (_hc->do_split) {
+ /*
+ * Handle ACK on SSPLIT.
+ * ACK should not occur in CSPLIT.
+ */
+ if ((!_hc->ep_is_in) && (_hc->data_pid_start != DWC_OTG_HC_PID_SETUP)) {
+ _qtd->ssplit_out_xfer_count = _hc->xfer_len;
+ }
+ if (!(_hc->ep_type == DWC_OTG_EP_TYPE_ISOC && !_hc->ep_is_in)) {
+ /* Don't need complete for isochronous out transfers. */
+ _qtd->complete_split = 1;
+ }
+
+ /* ISOC OUT */
+ if ((_hc->ep_type == DWC_OTG_EP_TYPE_ISOC) && !_hc->ep_is_in) {
+ switch (_hc->xact_pos) {
+ case DWC_HCSPLIT_XACTPOS_ALL:
+ break;
+ case DWC_HCSPLIT_XACTPOS_END:
+ _qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_ALL;
+ _qtd->isoc_split_offset = 0;
+ break;
+ case DWC_HCSPLIT_XACTPOS_BEGIN:
+ case DWC_HCSPLIT_XACTPOS_MID:
+ /*
+ * For BEGIN or MID, calculate the length for
+ * the next microframe to determine the correct
+ * SSPLIT token, either MID or END.
+ */
+ do {
+ struct usb_iso_packet_descriptor *frame_desc;
+
+ frame_desc = &_qtd->urb->iso_frame_desc[_qtd->isoc_frame_index];
+ _qtd->isoc_split_offset += 188;
+
+ if ((frame_desc->length - _qtd->isoc_split_offset) <= 188) {
+ _qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_END;
+ }
+ else {
+ _qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_MID;
+ }
+
+ } while(0);
+ break;
+ }
+ } else {
+ halt_channel(_hcd, _hc, _qtd, DWC_OTG_HC_XFER_ACK, must_free);
+ }
+ } else {
+ _qtd->error_count = 0;
+
+ if (_hc->qh->ping_state) {
+ _hc->qh->ping_state = 0;
+ /*
+ * Halt the channel so the transfer can be re-started
+ * from the appropriate point. This only happens in
+ * Slave mode. In DMA mode, the ping_state is cleared
+ * when the transfer is started because the core
+ * automatically executes the PING, then the transfer.
+ */
+ halt_channel(_hcd, _hc, _qtd, DWC_OTG_HC_XFER_ACK, must_free);
+ } else {
+ halt_channel(_hcd, _hc, _qtd, _hc->halt_status, must_free);
+ }
+ }
+
+ /*
+ * If the ACK occurred when _not_ in the PING state, let the channel
+ * continue transferring data after clearing the error count.
+ */
+
+ disable_hc_int(_hc_regs,ack);
+
+ return 1;
+}
+
+/**
+ * Handles a host channel NYET interrupt. This interrupt should only occur on
+ * Bulk and Control OUT endpoints and for complete split transactions. If a
+ * NYET occurs at the same time as a Transfer Complete interrupt, it is
+ * handled in the xfercomp interrupt handler, not here. This handler may be
+ * called in either DMA mode or Slave mode.
+ */
+static int32_t handle_hc_nyet_intr(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t *_hc,
+ dwc_otg_hc_regs_t *_hc_regs,
+ dwc_otg_qtd_t *_qtd, int *must_free)
+{
+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: "
+ "NYET Received--\n", _hc->hc_num);
+
+ /*
+ * NYET on CSPLIT
+ * re-do the CSPLIT immediately on non-periodic
+ */
+ if ((_hc->do_split) && (_hc->complete_split)) {
+ if ((_hc->ep_type == DWC_OTG_EP_TYPE_INTR) ||
+ (_hc->ep_type == DWC_OTG_EP_TYPE_ISOC)) {
+ int frnum = dwc_otg_hcd_get_frame_number(dwc_otg_hcd_to_hcd(_hcd));
+
+ if (dwc_full_frame_num(frnum) !=
+ dwc_full_frame_num(_hc->qh->sched_frame)) {
+ /*
+ * No longer in the same full speed frame.
+ * Treat this as a transaction error.
+ */
+#if 0
+ /** @todo Fix system performance so this can
+ * be treated as an error. Right now complete
+ * splits cannot be scheduled precisely enough
+ * due to other system activity, so this error
+ * occurs regularly in Slave mode.
+ */
+ _qtd->error_count++;
+#endif
+ _qtd->complete_split = 0;
+ halt_channel(_hcd, _hc, _qtd, DWC_OTG_HC_XFER_XACT_ERR, must_free);
+ /** @todo add support for isoc release */
+ goto handle_nyet_done;
+ }
+ }
+
+ halt_channel(_hcd, _hc, _qtd, DWC_OTG_HC_XFER_NYET, must_free);
+ goto handle_nyet_done;
+ }
+
+ _hc->qh->ping_state = 1;
+ _qtd->error_count = 0;
+
+ update_urb_state_xfer_intr(_hc, _hc_regs, _qtd->urb, _qtd,
+ DWC_OTG_HC_XFER_NYET);
+ save_data_toggle(_hc, _hc_regs, _qtd);
+
+ /*
+ * Halt the channel and re-start the transfer so the PING
+ * protocol will start.
+ */
+ halt_channel(_hcd, _hc, _qtd, DWC_OTG_HC_XFER_NYET, must_free);
+
+handle_nyet_done:
+ disable_hc_int(_hc_regs,nyet);
+ clear_hc_int(_hc_regs, nyet);
+ return 1;
+}
+
+/**
+ * Handles a host channel babble interrupt. This handler may be called in
+ * either DMA mode or Slave mode.
+ */
+static int32_t handle_hc_babble_intr(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t * _hc, dwc_otg_hc_regs_t * _hc_regs, dwc_otg_qtd_t * _qtd, int *must_free)
+{
+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: "
+ "Babble Error--\n", _hc->hc_num);
+ if (_hc->ep_type != DWC_OTG_EP_TYPE_ISOC) {
+ dwc_otg_hcd_complete_urb(_hcd, _qtd->urb, -EOVERFLOW);
+ halt_channel(_hcd, _hc, _qtd, DWC_OTG_HC_XFER_BABBLE_ERR, must_free);
+ } else {
+ dwc_otg_halt_status_e halt_status;
+ halt_status = update_isoc_urb_state(_hcd, _hc, _hc_regs, _qtd,
+ DWC_OTG_HC_XFER_BABBLE_ERR);
+ halt_channel(_hcd, _hc, _qtd, halt_status, must_free);
+ }
+ disable_hc_int(_hc_regs,bblerr);
+ return 1;
+}
+
+/**
+ * Handles a host channel AHB error interrupt. This handler is only called in
+ * DMA mode.
+ */
+static int32_t handle_hc_ahberr_intr(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t *_hc,
+ dwc_otg_hc_regs_t *_hc_regs,
+ dwc_otg_qtd_t *_qtd)
+{
+ hcchar_data_t hcchar;
+ hcsplt_data_t hcsplt;
+ hctsiz_data_t hctsiz;
+ uint32_t hcdma;
+ struct urb *urb = _qtd->urb;
+
+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: "
+ "AHB Error--\n", _hc->hc_num);
+
+ hcchar.d32 = dwc_read_reg32(&_hc_regs->hcchar);
+ hcsplt.d32 = dwc_read_reg32(&_hc_regs->hcsplt);
+ hctsiz.d32 = dwc_read_reg32(&_hc_regs->hctsiz);
+ hcdma = dwc_read_reg32(&_hc_regs->hcdma);
+
+ DWC_ERROR("AHB ERROR, Channel %d\n", _hc->hc_num);
+ DWC_ERROR(" hcchar 0x%08x, hcsplt 0x%08x\n", hcchar.d32, hcsplt.d32);
+ DWC_ERROR(" hctsiz 0x%08x, hcdma 0x%08x\n", hctsiz.d32, hcdma);
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Enqueue\n");
+ DWC_ERROR(" Device address: %d\n", usb_pipedevice(urb->pipe));
+ DWC_ERROR(" Endpoint: %d, %s\n", usb_pipeendpoint(urb->pipe),
+ (usb_pipein(urb->pipe) ? "IN" : "OUT"));
+ DWC_ERROR(" Endpoint type: %s\n",
+ ({char *pipetype;
+ switch (usb_pipetype(urb->pipe)) {
+ case PIPE_CONTROL: pipetype = "CONTROL"; break;
+ case PIPE_BULK: pipetype = "BULK"; break;
+ case PIPE_INTERRUPT: pipetype = "INTERRUPT"; break;
+ case PIPE_ISOCHRONOUS: pipetype = "ISOCHRONOUS"; break;
+ default: pipetype = "UNKNOWN"; break;
+ }; pipetype;}));
+ DWC_ERROR(" Speed: %s\n",
+ ({char *speed;
+ switch (urb->dev->speed) {
+ case USB_SPEED_HIGH: speed = "HIGH"; break;
+ case USB_SPEED_FULL: speed = "FULL"; break;
+ case USB_SPEED_LOW: speed = "LOW"; break;
+ default: speed = "UNKNOWN"; break;
+ }; speed;}));
+ DWC_ERROR(" Max packet size: %d\n",
+ usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)));
+ DWC_ERROR(" Data buffer length: %d\n", urb->transfer_buffer_length);
+ DWC_ERROR(" Transfer buffer: %p, Transfer DMA: %p\n",
+ urb->transfer_buffer, (void *)(u32)urb->transfer_dma);
+ DWC_ERROR(" Setup buffer: %p, Setup DMA: %p\n",
+ urb->setup_packet, (void *)(u32)urb->setup_dma);
+ DWC_ERROR(" Interval: %d\n", urb->interval);
+
+ dwc_otg_hcd_complete_urb(_hcd, urb, -EIO);
+
+ /*
+ * Force a channel halt. Don't call halt_channel because that won't
+ * write to the HCCHARn register in DMA mode to force the halt.
+ */
+ dwc_otg_hc_halt(_hcd->core_if, _hc, DWC_OTG_HC_XFER_AHB_ERR);
+
+ disable_hc_int(_hc_regs,ahberr);
+ return 1;
+}
+
+/**
+ * Handles a host channel transaction error interrupt. This handler may be
+ * called in either DMA mode or Slave mode.
+ */
+static int32_t handle_hc_xacterr_intr(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t * _hc, dwc_otg_hc_regs_t * _hc_regs, dwc_otg_qtd_t * _qtd, int *must_free)
+{
+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: "
+ "Transaction Error--\n", _hc->hc_num);
+
+ switch (usb_pipetype(_qtd->urb->pipe)) {
+ case PIPE_CONTROL:
+ case PIPE_BULK:
+ _qtd->error_count++;
+ if (!_hc->qh->ping_state) {
+ update_urb_state_xfer_intr(_hc, _hc_regs, _qtd->urb,
+ _qtd, DWC_OTG_HC_XFER_XACT_ERR);
+ save_data_toggle(_hc, _hc_regs, _qtd);
+ if (!_hc->ep_is_in && _qtd->urb->dev->speed == USB_SPEED_HIGH) {
+ _hc->qh->ping_state = 1;
+ }
+ }
+
+ /*
+ * Halt the channel so the transfer can be re-started from
+ * the appropriate point or the PING protocol will start.
+ */
+ halt_channel(_hcd, _hc, _qtd, DWC_OTG_HC_XFER_XACT_ERR, must_free);
+ break;
+ case PIPE_INTERRUPT:
+ _qtd->error_count++;
+ if ((_hc->do_split) && (_hc->complete_split)) {
+ _qtd->complete_split = 0;
+ }
+ halt_channel(_hcd, _hc, _qtd, DWC_OTG_HC_XFER_XACT_ERR, must_free);
+ break;
+ case PIPE_ISOCHRONOUS:
+ {
+ dwc_otg_halt_status_e halt_status;
+ halt_status = update_isoc_urb_state(_hcd, _hc, _hc_regs, _qtd,
+ DWC_OTG_HC_XFER_XACT_ERR);
+
+ halt_channel(_hcd, _hc, _qtd, halt_status, must_free);
+ }
+ break;
+ }
+
+
+ disable_hc_int(_hc_regs,xacterr);
+
+ return 1;
+}
+
+/**
+ * Handles a host channel frame overrun interrupt. This handler may be called
+ * in either DMA mode or Slave mode.
+ */
+static int32_t handle_hc_frmovrun_intr(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t * _hc, dwc_otg_hc_regs_t * _hc_regs, dwc_otg_qtd_t * _qtd, int *must_free)
+{
+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: "
+ "Frame Overrun--\n", _hc->hc_num);
+
+ switch (usb_pipetype(_qtd->urb->pipe)) {
+ case PIPE_CONTROL:
+ case PIPE_BULK:
+ break;
+ case PIPE_INTERRUPT:
+ halt_channel(_hcd, _hc, _qtd, DWC_OTG_HC_XFER_FRAME_OVERRUN, must_free);
+ break;
+ case PIPE_ISOCHRONOUS:
+ {
+ dwc_otg_halt_status_e halt_status;
+ halt_status = update_isoc_urb_state(_hcd, _hc, _hc_regs, _qtd,
+ DWC_OTG_HC_XFER_FRAME_OVERRUN);
+
+ halt_channel(_hcd, _hc, _qtd, halt_status, must_free);
+ }
+ break;
+ }
+
+ disable_hc_int(_hc_regs,frmovrun);
+
+ return 1;
+}
+
+/**
+ * Handles a host channel data toggle error interrupt. This handler may be
+ * called in either DMA mode or Slave mode.
+ */
+static int32_t handle_hc_datatglerr_intr(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t * _hc, dwc_otg_hc_regs_t * _hc_regs, dwc_otg_qtd_t * _qtd, int *must_free)
+{
+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: "
+ "Data Toggle Error--\n", _hc->hc_num);
+
+ if (_hc->ep_is_in) {
+ _qtd->error_count = 0;
+ } else {
+ DWC_ERROR("Data Toggle Error on OUT transfer,"
+ "channel %d\n", _hc->hc_num);
+ }
+
+ disable_hc_int(_hc_regs,datatglerr);
+
+ return 1;
+}
+
+#ifdef DEBUG
+/**
+ * This function is for debug only. It checks that a valid halt status is set
+ * and that HCCHARn.chdis is clear. If there's a problem, corrective action is
+ * taken and a warning is issued.
+ * @return 1 if halt status is ok, 0 otherwise.
+ */
+static inline int halt_status_ok(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t * _hc, dwc_otg_hc_regs_t * _hc_regs, dwc_otg_qtd_t * _qtd, int *must_free)
+{
+ hcchar_data_t hcchar;
+ hctsiz_data_t hctsiz;
+ hcint_data_t hcint;
+ hcintmsk_data_t hcintmsk;
+ hcsplt_data_t hcsplt;
+
+ if (_hc->halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS) {
+ /*
+ * This code is here only as a check. This condition should
+ * never happen. Ignore the halt if it does occur.
+ */
+ hcchar.d32 = dwc_read_reg32(&_hc_regs->hcchar);
+ hctsiz.d32 = dwc_read_reg32(&_hc_regs->hctsiz);
+ hcint.d32 = dwc_read_reg32(&_hc_regs->hcint);
+ hcintmsk.d32 = dwc_read_reg32(&_hc_regs->hcintmsk);
+ hcsplt.d32 = dwc_read_reg32(&_hc_regs->hcsplt);
+ DWC_WARN("%s: _hc->halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS, "
+ "channel %d, hcchar 0x%08x, hctsiz 0x%08x, "
+ "hcint 0x%08x, hcintmsk 0x%08x, "
+ "hcsplt 0x%08x, qtd->complete_split %d\n",
+ __func__, _hc->hc_num, hcchar.d32, hctsiz.d32,
+ hcint.d32, hcintmsk.d32,
+ hcsplt.d32, _qtd->complete_split);
+
+ DWC_WARN("%s: no halt status, channel %d, ignoring interrupt\n",
+ __func__, _hc->hc_num);
+ DWC_WARN("\n");
+ clear_hc_int(_hc_regs,chhltd);
+ return 0;
+ }
+
+ /*
+ * This code is here only as a check. hcchar.chdis should
+ * never be set when the halt interrupt occurs. Halt the
+ * channel again if it does occur.
+ */
+ hcchar.d32 = dwc_read_reg32(&_hc_regs->hcchar);
+ if (hcchar.b.chdis) {
+ DWC_WARN("%s: hcchar.chdis set unexpectedly, "
+ "hcchar 0x%08x, trying to halt again\n",
+ __func__, hcchar.d32);
+ clear_hc_int(_hc_regs,chhltd);
+ _hc->halt_pending = 0;
+ halt_channel(_hcd, _hc, _qtd, _hc->halt_status, must_free);
+ return 0;
+ }
+
+ return 1;
+}
+#endif
+
+/**
+ * Handles a host Channel Halted interrupt in DMA mode. This handler
+ * determines the reason the channel halted and proceeds accordingly.
+ */
+static void handle_hc_chhltd_intr_dma(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t * _hc, dwc_otg_hc_regs_t * _hc_regs, dwc_otg_qtd_t * _qtd, int *must_free)
+{
+ hcint_data_t hcint;
+ hcintmsk_data_t hcintmsk;
+
+ if (_hc->halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE ||
+ _hc->halt_status == DWC_OTG_HC_XFER_AHB_ERR) {
+ /*
+ * Just release the channel. A dequeue can happen on a
+ * transfer timeout. In the case of an AHB Error, the channel
+ * was forced to halt because there's no way to gracefully
+ * recover.
+ */
+ release_channel(_hcd, _hc, _qtd, _hc->halt_status, must_free);
+ return;
+ }
+
+ /* Read the HCINTn register to determine the cause for the halt. */
+ hcint.d32 = dwc_read_reg32(&_hc_regs->hcint);
+ hcintmsk.d32 = dwc_read_reg32(&_hc_regs->hcintmsk);
+
+ if (hcint.b.xfercomp) {
+ /** @todo This is here because of a possible hardware bug. Spec
+ * says that on SPLIT-ISOC OUT transfers in DMA mode that a HALT
+ * interrupt w/ACK bit set should occur, but I only see the
+ * XFERCOMP bit, even with it masked out. This is a workaround
+ * for that behavior. Should fix this when hardware is fixed.
+ */
+ if ((_hc->ep_type == DWC_OTG_EP_TYPE_ISOC) && (!_hc->ep_is_in)) {
+ handle_hc_ack_intr(_hcd, _hc, _hc_regs, _qtd, must_free);
+ }
+ handle_hc_xfercomp_intr(_hcd, _hc, _hc_regs, _qtd, must_free);
+ } else if (hcint.b.stall) {
+ handle_hc_stall_intr(_hcd, _hc, _hc_regs, _qtd, must_free);
+ } else if (hcint.b.xacterr) {
+ /*
+ * Must handle xacterr before nak or ack. Could get a xacterr
+ * at the same time as either of these on a BULK/CONTROL OUT
+ * that started with a PING. The xacterr takes precedence.
+ */
+ handle_hc_xacterr_intr(_hcd, _hc, _hc_regs, _qtd, must_free);
+ } else if (hcint.b.nyet) {
+ /*
+ * Must handle nyet before nak or ack. Could get a nyet at the
+ * same time as either of those on a BULK/CONTROL OUT that
+ * started with a PING. The nyet takes precedence.
+ */
+ handle_hc_nyet_intr(_hcd, _hc, _hc_regs, _qtd, must_free);
+ } else if (hcint.b.bblerr) {
+ handle_hc_babble_intr(_hcd, _hc, _hc_regs, _qtd, must_free);
+ } else if (hcint.b.frmovrun) {
+ handle_hc_frmovrun_intr(_hcd, _hc, _hc_regs, _qtd, must_free);
+ } else if (hcint.b.datatglerr) {
+ handle_hc_datatglerr_intr(_hcd, _hc, _hc_regs, _qtd, must_free);
+ _hc->qh->data_toggle = 0;
+ halt_channel(_hcd, _hc, _qtd, _hc->halt_status, must_free);
+ } else if (hcint.b.nak && !hcintmsk.b.nak) {
+ /*
+ * If nak is not masked, it's because a non-split IN transfer
+ * is in an error state. In that case, the nak is handled by
+ * the nak interrupt handler, not here. Handle nak here for
+ * BULK/CONTROL OUT transfers, which halt on a NAK to allow
+ * rewinding the buffer pointer.
+ */
+ handle_hc_nak_intr(_hcd, _hc, _hc_regs, _qtd, must_free);
+ } else if (hcint.b.ack && !hcintmsk.b.ack) {
+ /*
+ * If ack is not masked, it's because a non-split IN transfer
+ * is in an error state. In that case, the ack is handled by
+ * the ack interrupt handler, not here. Handle ack here for
+ * split transfers. Start splits halt on ACK.
+ */
+ handle_hc_ack_intr(_hcd, _hc, _hc_regs, _qtd, must_free);
+ } else {
+ if (_hc->ep_type == DWC_OTG_EP_TYPE_INTR ||
+ _hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
+ /*
+ * A periodic transfer halted with no other channel
+ * interrupts set. Assume it was halted by the core
+ * because it could not be completed in its scheduled
+ * (micro)frame.
+ */
+#ifdef DEBUG
+ DWC_PRINT("%s: Halt channel %d (assume incomplete periodic transfer)\n",
+ __func__, _hc->hc_num);
+#endif /* */
+ halt_channel(_hcd, _hc, _qtd,
+ DWC_OTG_HC_XFER_PERIODIC_INCOMPLETE, must_free);
+ } else {
+#ifdef DEBUG
+ DWC_ERROR("%s: Channel %d, DMA Mode -- ChHltd set, but reason "
+ "for halting is unknown, nyet %d, hcint 0x%08x, intsts 0x%08x\n",
+ __func__, _hc->hc_num, hcint.b.nyet, hcint.d32,
+ dwc_read_reg32(&_hcd->core_if->core_global_regs->gintsts));
+#endif
+ halt_channel(_hcd, _hc, _qtd, _hc->halt_status, must_free);
+ }
+ }
+}
+
+/**
+ * Handles a host channel Channel Halted interrupt.
+ *
+ * In slave mode, this handler is called only when the driver specifically
+ * requests a halt. This occurs during handling other host channel interrupts
+ * (e.g. nak, xacterr, stall, nyet, etc.).
+ *
+ * In DMA mode, this is the interrupt that occurs when the core has finished
+ * processing a transfer on a channel. Other host channel interrupts (except
+ * ahberr) are disabled in DMA mode.
+ */
+static int32_t handle_hc_chhltd_intr(dwc_otg_hcd_t *_hcd,
+ dwc_hc_t * _hc, dwc_otg_hc_regs_t * _hc_regs, dwc_otg_qtd_t * _qtd, int *must_free)
+{
+ DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: "
+ "Channel Halted--\n", _hc->hc_num);
+
+ if (_hcd->core_if->dma_enable) {
+ handle_hc_chhltd_intr_dma(_hcd, _hc, _hc_regs, _qtd, must_free);
+ } else {
+#ifdef DEBUG
+ if (!halt_status_ok(_hcd, _hc, _hc_regs, _qtd, must_free)) {
+ return 1;
+ }
+#endif /* */
+ release_channel(_hcd, _hc, _qtd, _hc->halt_status, must_free);
+ }
+
+ return 1;
+}
+
+/** Handles interrupt for a specific Host Channel */
+int32_t dwc_otg_hcd_handle_hc_n_intr (dwc_otg_hcd_t *_dwc_otg_hcd, uint32_t _num)
+{
+ int must_free = 0;
+ int retval = 0;
+ hcint_data_t hcint;
+ hcintmsk_data_t hcintmsk;
+ dwc_hc_t *hc;
+ dwc_otg_hc_regs_t *hc_regs;
+ dwc_otg_qtd_t *qtd;
+
+ DWC_DEBUGPL(DBG_HCDV, "--Host Channel Interrupt--, Channel %d\n", _num);
+
+ hc = _dwc_otg_hcd->hc_ptr_array[_num];
+ hc_regs = _dwc_otg_hcd->core_if->host_if->hc_regs[_num];
+ qtd = list_entry(hc->qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry);
+
+ hcint.d32 = dwc_read_reg32(&hc_regs->hcint);
+ hcintmsk.d32 = dwc_read_reg32(&hc_regs->hcintmsk);
+ DWC_DEBUGPL(DBG_HCDV, " hcint 0x%08x, hcintmsk 0x%08x, hcint&hcintmsk 0x%08x\n",
+ hcint.d32, hcintmsk.d32, (hcint.d32 & hcintmsk.d32));
+ hcint.d32 = hcint.d32 & hcintmsk.d32;
+
+ if (!_dwc_otg_hcd->core_if->dma_enable) {
+ if ((hcint.b.chhltd) && (hcint.d32 != 0x2)) {
+ hcint.b.chhltd = 0;
+ }
+ }
+
+ if (hcint.b.xfercomp) {
+ retval |= handle_hc_xfercomp_intr(_dwc_otg_hcd, hc, hc_regs, qtd, &must_free);
+ /*
+ * If NYET occurred at same time as Xfer Complete, the NYET is
+ * handled by the Xfer Complete interrupt handler. Don't want
+ * to call the NYET interrupt handler in this case.
+ */
+ hcint.b.nyet = 0;
+ }
+ if (hcint.b.chhltd) {
+ retval |= handle_hc_chhltd_intr(_dwc_otg_hcd, hc, hc_regs, qtd, &must_free);
+ }
+ if (hcint.b.ahberr) {
+ retval |= handle_hc_ahberr_intr(_dwc_otg_hcd, hc, hc_regs, qtd);
+ }
+ if (hcint.b.stall) {
+ retval |= handle_hc_stall_intr(_dwc_otg_hcd, hc, hc_regs, qtd, &must_free);
+ }
+ if (hcint.b.nak) {
+ retval |= handle_hc_nak_intr(_dwc_otg_hcd, hc, hc_regs, qtd, &must_free);
+ }
+ if (hcint.b.ack) {
+ retval |= handle_hc_ack_intr(_dwc_otg_hcd, hc, hc_regs, qtd, &must_free);
+ }
+ if (hcint.b.nyet) {
+ retval |= handle_hc_nyet_intr(_dwc_otg_hcd, hc, hc_regs, qtd, &must_free);
+ }
+ if (hcint.b.xacterr) {
+ retval |= handle_hc_xacterr_intr(_dwc_otg_hcd, hc, hc_regs, qtd, &must_free);
+ }
+ if (hcint.b.bblerr) {
+ retval |= handle_hc_babble_intr(_dwc_otg_hcd, hc, hc_regs, qtd, &must_free);
+ }
+ if (hcint.b.frmovrun) {
+ retval |= handle_hc_frmovrun_intr(_dwc_otg_hcd, hc, hc_regs, qtd, &must_free);
+ }
+ if (hcint.b.datatglerr) {
+ retval |= handle_hc_datatglerr_intr(_dwc_otg_hcd, hc, hc_regs, qtd, &must_free);
+ }
+
+ /*
+ * Logic to free the qtd here, at the end of the hc intr
+ * processing, if the handling of this interrupt determined
+ * that it needs to be freed.
+ */
+ if (must_free) {
+ /* Free the qtd here now that we are done using it. */
+ dwc_otg_hcd_qtd_free(qtd);
+ }
+ return retval;
+}
+
+#endif /* DWC_DEVICE_ONLY */
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_hcd_queue.c
@@ -0,0 +1,794 @@
+/* ==========================================================================
+ * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/drivers/dwc_otg_hcd_queue.c $
+ * $Revision: 1.1.1.1 $
+ * $Date: 2009-04-17 06:15:34 $
+ * $Change: 537387 $
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+#ifndef DWC_DEVICE_ONLY
+
+/**
+ * @file
+ *
+ * This file contains the functions to manage Queue Heads and Queue
+ * Transfer Descriptors.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/interrupt.h>
+#include <linux/string.h>
+
+#include "dwc_otg_driver.h"
+#include "dwc_otg_hcd.h"
+#include "dwc_otg_regs.h"
+
+/**
+ * This function allocates and initializes a QH.
+ *
+ * @param _hcd The HCD state structure for the DWC OTG controller.
+ * @param[in] _urb Holds the information about the device/endpoint that we need
+ * to initialize the QH.
+ *
+ * @return Returns pointer to the newly allocated QH, or NULL on error. */
+dwc_otg_qh_t *dwc_otg_hcd_qh_create (dwc_otg_hcd_t *_hcd, struct urb *_urb)
+{
+ dwc_otg_qh_t *qh;
+
+ /* Allocate memory */
+ /** @todo add memflags argument */
+ qh = dwc_otg_hcd_qh_alloc ();
+ if (qh == NULL) {
+ return NULL;
+ }
+
+ dwc_otg_hcd_qh_init (_hcd, qh, _urb);
+ return qh;
+}
+
+/** Free each QTD in the QH's QTD-list then free the QH. QH should already be
+ * removed from a list. QTD list should already be empty if called from URB
+ * Dequeue.
+ *
+ * @param[in] _qh The QH to free.
+ */
+void dwc_otg_hcd_qh_free (dwc_otg_qh_t *_qh)
+{
+ dwc_otg_qtd_t *qtd;
+ struct list_head *pos;
+ unsigned long flags;
+
+ /* Free each QTD in the QTD list */
+ local_irq_save (flags);
+ for (pos = _qh->qtd_list.next;
+ pos != &_qh->qtd_list;
+ pos = _qh->qtd_list.next)
+ {
+ list_del (pos);
+ qtd = dwc_list_to_qtd (pos);
+ dwc_otg_hcd_qtd_free (qtd);
+ }
+ local_irq_restore (flags);
+
+ kfree (_qh);
+ return;
+}
+
+/** Initializes a QH structure.
+ *
+ * @param[in] _hcd The HCD state structure for the DWC OTG controller.
+ * @param[in] _qh The QH to init.
+ * @param[in] _urb Holds the information about the device/endpoint that we need
+ * to initialize the QH. */
+#define SCHEDULE_SLOP 10
+void dwc_otg_hcd_qh_init(dwc_otg_hcd_t *_hcd, dwc_otg_qh_t *_qh, struct urb *_urb)
+{
+ memset (_qh, 0, sizeof (dwc_otg_qh_t));
+
+ /* Initialize QH */
+ switch (usb_pipetype(_urb->pipe)) {
+ case PIPE_CONTROL:
+ _qh->ep_type = USB_ENDPOINT_XFER_CONTROL;
+ break;
+ case PIPE_BULK:
+ _qh->ep_type = USB_ENDPOINT_XFER_BULK;
+ break;
+ case PIPE_ISOCHRONOUS:
+ _qh->ep_type = USB_ENDPOINT_XFER_ISOC;
+ break;
+ case PIPE_INTERRUPT:
+ _qh->ep_type = USB_ENDPOINT_XFER_INT;
+ break;
+ }
+
+ _qh->ep_is_in = usb_pipein(_urb->pipe) ? 1 : 0;
+
+ _qh->data_toggle = DWC_OTG_HC_PID_DATA0;
+ _qh->maxp = usb_maxpacket(_urb->dev, _urb->pipe, !(usb_pipein(_urb->pipe)));
+ INIT_LIST_HEAD(&_qh->qtd_list);
+ INIT_LIST_HEAD(&_qh->qh_list_entry);
+ _qh->channel = NULL;
+
+ /* FS/LS Enpoint on HS Hub
+ * NOT virtual root hub */
+ _qh->do_split = 0;
+ _qh->speed = _urb->dev->speed;
+ if (((_urb->dev->speed == USB_SPEED_LOW) ||
+ (_urb->dev->speed == USB_SPEED_FULL)) &&
+ (_urb->dev->tt) && (_urb->dev->tt->hub) && (_urb->dev->tt->hub->devnum != 1)) {
+ DWC_DEBUGPL(DBG_HCD, "QH init: EP %d: TT found at hub addr %d, for port %d\n",
+ usb_pipeendpoint(_urb->pipe), _urb->dev->tt->hub->devnum,
+ _urb->dev->ttport);
+ _qh->do_split = 1;
+ }
+
+ if (_qh->ep_type == USB_ENDPOINT_XFER_INT ||
+ _qh->ep_type == USB_ENDPOINT_XFER_ISOC) {
+ /* Compute scheduling parameters once and save them. */
+ hprt0_data_t hprt;
+
+ /** @todo Account for split transfers in the bus time. */
+ int bytecount = dwc_hb_mult(_qh->maxp) * dwc_max_packet(_qh->maxp);
+ _qh->usecs = NS_TO_US(usb_calc_bus_time(_urb->dev->speed,
+ usb_pipein(_urb->pipe),
+ (_qh->ep_type == USB_ENDPOINT_XFER_ISOC),bytecount));
+
+ /* Start in a slightly future (micro)frame. */
+ _qh->sched_frame = dwc_frame_num_inc(_hcd->frame_number, SCHEDULE_SLOP);
+ _qh->interval = _urb->interval;
+#if 0
+ /* Increase interrupt polling rate for debugging. */
+ if (_qh->ep_type == USB_ENDPOINT_XFER_INT) {
+ _qh->interval = 8;
+ }
+#endif
+ hprt.d32 = dwc_read_reg32(_hcd->core_if->host_if->hprt0);
+ if ((hprt.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED) &&
+ ((_urb->dev->speed == USB_SPEED_LOW) ||
+ (_urb->dev->speed == USB_SPEED_FULL)))
+ {
+ _qh->interval *= 8;
+ _qh->sched_frame |= 0x7;
+ _qh->start_split_frame = _qh->sched_frame;
+ }
+ }
+
+ DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD QH Initialized\n");
+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - qh = %p\n", _qh);
+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Device Address = %d\n",
+ _urb->dev->devnum);
+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Endpoint %d, %s\n",
+ usb_pipeendpoint(_urb->pipe),
+ usb_pipein(_urb->pipe) == USB_DIR_IN ? "IN" : "OUT");
+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Speed = %s\n",
+ ({ char *speed; switch (_urb->dev->speed) {
+ case USB_SPEED_LOW: speed = "low"; break;
+ case USB_SPEED_FULL: speed = "full"; break;
+ case USB_SPEED_HIGH: speed = "high"; break;
+ default: speed = "?"; break;
+ }; speed;}));
+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - Type = %s\n",
+ ({ char *type; switch (_qh->ep_type) {
+ case USB_ENDPOINT_XFER_ISOC: type = "isochronous"; break;
+ case USB_ENDPOINT_XFER_INT: type = "interrupt"; break;
+ case USB_ENDPOINT_XFER_CONTROL: type = "control"; break;
+ case USB_ENDPOINT_XFER_BULK: type = "bulk"; break;
+ default: type = "?"; break;
+ }; type;}));
+#ifdef DEBUG
+ if (_qh->ep_type == USB_ENDPOINT_XFER_INT) {
+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - usecs = %d\n",
+ _qh->usecs);
+ DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - interval = %d\n",
+ _qh->interval);
+ }
+#endif
+
+ return;
+}
+
+/**
+ * Microframe scheduler
+ * track the total use in hcd->frame_usecs
+ * keep each qh use in qh->frame_usecs
+ * when surrendering the qh then donate the time back
+ */
+const unsigned short max_uframe_usecs[]={ 100, 100, 100, 100, 100, 100, 30, 0 };
+
+/*
+ * called from dwc_otg_hcd.c:dwc_otg_hcd_init
+ */
+int init_hcd_usecs(dwc_otg_hcd_t *_hcd)
+{
+ int i;
+ for (i=0; i<8; i++) {
+ _hcd->frame_usecs[i] = max_uframe_usecs[i];
+ }
+ return 0;
+}
+
+static int find_single_uframe(dwc_otg_hcd_t * _hcd, dwc_otg_qh_t * _qh)
+{
+ int i;
+ unsigned short utime;
+ int t_left;
+ int ret;
+ int done;
+
+ ret = -1;
+ utime = _qh->usecs;
+ t_left = utime;
+ i = 0;
+ done = 0;
+ while (done == 0) {
+ /* At the start _hcd->frame_usecs[i] = max_uframe_usecs[i]; */
+ if (utime <= _hcd->frame_usecs[i]) {
+ _hcd->frame_usecs[i] -= utime;
+ _qh->frame_usecs[i] += utime;
+ t_left -= utime;
+ ret = i;
+ done = 1;
+ return ret;
+ } else {
+ i++;
+ if (i == 8) {
+ done = 1;
+ ret = -1;
+ }
+ }
+ }
+ return ret;
+}
+
+/*
+ * use this for FS apps that can span multiple uframes
+ */
+static int find_multi_uframe(dwc_otg_hcd_t * _hcd, dwc_otg_qh_t * _qh)
+{
+ int i;
+ int j;
+ unsigned short utime;
+ int t_left;
+ int ret;
+ int done;
+ unsigned short xtime;
+
+ ret = -1;
+ utime = _qh->usecs;
+ t_left = utime;
+ i = 0;
+ done = 0;
+loop:
+ while (done == 0) {
+ if(_hcd->frame_usecs[i] <= 0) {
+ i++;
+ if (i == 8) {
+ done = 1;
+ ret = -1;
+ }
+ goto loop;
+ }
+
+ /*
+ * we need n consequtive slots
+ * so use j as a start slot j plus j+1 must be enough time (for now)
+ */
+ xtime= _hcd->frame_usecs[i];
+ for (j = i+1 ; j < 8 ; j++ ) {
+ /*
+ * if we add this frame remaining time to xtime we may
+ * be OK, if not we need to test j for a complete frame
+ */
+ if ((xtime+_hcd->frame_usecs[j]) < utime) {
+ if (_hcd->frame_usecs[j] < max_uframe_usecs[j]) {
+ j = 8;
+ ret = -1;
+ continue;
+ }
+ }
+ if (xtime >= utime) {
+ ret = i;
+ j = 8; /* stop loop with a good value ret */
+ continue;
+ }
+ /* add the frame time to x time */
+ xtime += _hcd->frame_usecs[j];
+ /* we must have a fully available next frame or break */
+ if ((xtime < utime)
+ && (_hcd->frame_usecs[j] == max_uframe_usecs[j])) {
+ ret = -1;
+ j = 8; /* stop loop with a bad value ret */
+ continue;
+ }
+ }
+ if (ret >= 0) {
+ t_left = utime;
+ for (j = i; (t_left>0) && (j < 8); j++ ) {
+ t_left -= _hcd->frame_usecs[j];
+ if ( t_left <= 0 ) {
+ _qh->frame_usecs[j] += _hcd->frame_usecs[j] + t_left;
+ _hcd->frame_usecs[j]= -t_left;
+ ret = i;
+ done = 1;
+ } else {
+ _qh->frame_usecs[j] += _hcd->frame_usecs[j];
+ _hcd->frame_usecs[j] = 0;
+ }
+ }
+ } else {
+ i++;
+ if (i == 8) {
+ done = 1;
+ ret = -1;
+ }
+ }
+ }
+ return ret;
+}
+
+static int find_uframe(dwc_otg_hcd_t * _hcd, dwc_otg_qh_t * _qh)
+{
+ int ret;
+ ret = -1;
+
+ if (_qh->speed == USB_SPEED_HIGH) {
+ /* if this is a hs transaction we need a full frame */
+ ret = find_single_uframe(_hcd, _qh);
+ } else {
+ /* if this is a fs transaction we may need a sequence of frames */
+ ret = find_multi_uframe(_hcd, _qh);
+ }
+ return ret;
+}
+
+/**
+ * Checks that the max transfer size allowed in a host channel is large enough
+ * to handle the maximum data transfer in a single (micro)frame for a periodic
+ * transfer.
+ *
+ * @param _hcd The HCD state structure for the DWC OTG controller.
+ * @param _qh QH for a periodic endpoint.
+ *
+ * @return 0 if successful, negative error code otherwise.
+ */
+static int check_max_xfer_size(dwc_otg_hcd_t *_hcd, dwc_otg_qh_t *_qh)
+{
+ int status;
+ uint32_t max_xfer_size;
+ uint32_t max_channel_xfer_size;
+
+ status = 0;
+
+ max_xfer_size = dwc_max_packet(_qh->maxp) * dwc_hb_mult(_qh->maxp);
+ max_channel_xfer_size = _hcd->core_if->core_params->max_transfer_size;
+
+ if (max_xfer_size > max_channel_xfer_size) {
+ DWC_NOTICE("%s: Periodic xfer length %d > "
+ "max xfer length for channel %d\n",
+ __func__, max_xfer_size, max_channel_xfer_size);
+ status = -ENOSPC;
+ }
+
+ return status;
+}
+
+/**
+ * Schedules an interrupt or isochronous transfer in the periodic schedule.
+ *
+ * @param _hcd The HCD state structure for the DWC OTG controller.
+ * @param _qh QH for the periodic transfer. The QH should already contain the
+ * scheduling information.
+ *
+ * @return 0 if successful, negative error code otherwise.
+ */
+static int schedule_periodic(dwc_otg_hcd_t *_hcd, dwc_otg_qh_t *_qh)
+{
+ int status = 0;
+
+ int frame;
+ status = find_uframe(_hcd, _qh);
+ frame = -1;
+ if (status == 0) {
+ frame = 7;
+ } else {
+ if (status > 0 )
+ frame = status-1;
+ }
+
+ /* Set the new frame up */
+ if (frame > -1) {
+ _qh->sched_frame &= ~0x7;
+ _qh->sched_frame |= (frame & 7);
+ }
+
+ if (status != -1 )
+ status = 0;
+ if (status) {
+ DWC_NOTICE("%s: Insufficient periodic bandwidth for "
+ "periodic transfer.\n", __func__);
+ return status;
+ }
+
+ status = check_max_xfer_size(_hcd, _qh);
+ if (status) {
+ DWC_NOTICE("%s: Channel max transfer size too small "
+ "for periodic transfer.\n", __func__);
+ return status;
+ }
+
+ /* Always start in the inactive schedule. */
+ list_add_tail(&_qh->qh_list_entry, &_hcd->periodic_sched_inactive);
+
+
+ /* Update claimed usecs per (micro)frame. */
+ _hcd->periodic_usecs += _qh->usecs;
+
+ /* Update average periodic bandwidth claimed and # periodic reqs for usbfs. */
+ hcd_to_bus(dwc_otg_hcd_to_hcd(_hcd))->bandwidth_allocated += _qh->usecs / _qh->interval;
+ if (_qh->ep_type == USB_ENDPOINT_XFER_INT) {
+ hcd_to_bus(dwc_otg_hcd_to_hcd(_hcd))->bandwidth_int_reqs++;
+ DWC_DEBUGPL(DBG_HCD, "Scheduled intr: qh %p, usecs %d, period %d\n",
+ _qh, _qh->usecs, _qh->interval);
+ } else {
+ hcd_to_bus(dwc_otg_hcd_to_hcd(_hcd))->bandwidth_isoc_reqs++;
+ DWC_DEBUGPL(DBG_HCD, "Scheduled isoc: qh %p, usecs %d, period %d\n",
+ _qh, _qh->usecs, _qh->interval);
+ }
+
+ return status;
+}
+
+/**
+ * This function adds a QH to either the non periodic or periodic schedule if
+ * it is not already in the schedule. If the QH is already in the schedule, no
+ * action is taken.
+ *
+ * @return 0 if successful, negative error code otherwise.
+ */
+int dwc_otg_hcd_qh_add (dwc_otg_hcd_t *_hcd, dwc_otg_qh_t *_qh)
+{
+ unsigned long flags;
+ int status = 0;
+
+ local_irq_save(flags);
+
+ if (!list_empty(&_qh->qh_list_entry)) {
+ /* QH already in a schedule. */
+ goto done;
+ }
+
+ /* Add the new QH to the appropriate schedule */
+ if (dwc_qh_is_non_per(_qh)) {
+ /* Always start in the inactive schedule. */
+ list_add_tail(&_qh->qh_list_entry, &_hcd->non_periodic_sched_inactive);
+ } else {
+ status = schedule_periodic(_hcd, _qh);
+ }
+
+ done:
+ local_irq_restore(flags);
+
+ return status;
+}
+
+/**
+ * This function adds a QH to the non periodic deferred schedule.
+ *
+ * @return 0 if successful, negative error code otherwise.
+ */
+int dwc_otg_hcd_qh_add_deferred(dwc_otg_hcd_t * _hcd, dwc_otg_qh_t * _qh)
+{
+ unsigned long flags;
+ local_irq_save(flags);
+ if (!list_empty(&_qh->qh_list_entry)) {
+ /* QH already in a schedule. */
+ goto done;
+ }
+
+ /* Add the new QH to the non periodic deferred schedule */
+ if (dwc_qh_is_non_per(_qh)) {
+ list_add_tail(&_qh->qh_list_entry,
+ &_hcd->non_periodic_sched_deferred);
+ }
+done:
+ local_irq_restore(flags);
+ return 0;
+}
+
+/**
+ * Removes an interrupt or isochronous transfer from the periodic schedule.
+ *
+ * @param _hcd The HCD state structure for the DWC OTG controller.
+ * @param _qh QH for the periodic transfer.
+ */
+static void deschedule_periodic(dwc_otg_hcd_t *_hcd, dwc_otg_qh_t *_qh)
+{
+ int i;
+ list_del_init(&_qh->qh_list_entry);
+
+
+ /* Update claimed usecs per (micro)frame. */
+ _hcd->periodic_usecs -= _qh->usecs;
+
+ for (i = 0; i < 8; i++) {
+ _hcd->frame_usecs[i] += _qh->frame_usecs[i];
+ _qh->frame_usecs[i] = 0;
+ }
+ /* Update average periodic bandwidth claimed and # periodic reqs for usbfs. */
+ hcd_to_bus(dwc_otg_hcd_to_hcd(_hcd))->bandwidth_allocated -= _qh->usecs / _qh->interval;
+
+ if (_qh->ep_type == USB_ENDPOINT_XFER_INT) {
+ hcd_to_bus(dwc_otg_hcd_to_hcd(_hcd))->bandwidth_int_reqs--;
+ DWC_DEBUGPL(DBG_HCD, "Descheduled intr: qh %p, usecs %d, period %d\n",
+ _qh, _qh->usecs, _qh->interval);
+ } else {
+ hcd_to_bus(dwc_otg_hcd_to_hcd(_hcd))->bandwidth_isoc_reqs--;
+ DWC_DEBUGPL(DBG_HCD, "Descheduled isoc: qh %p, usecs %d, period %d\n",
+ _qh, _qh->usecs, _qh->interval);
+ }
+}
+
+/**
+ * Removes a QH from either the non-periodic or periodic schedule. Memory is
+ * not freed.
+ *
+ * @param[in] _hcd The HCD state structure.
+ * @param[in] _qh QH to remove from schedule. */
+void dwc_otg_hcd_qh_remove (dwc_otg_hcd_t *_hcd, dwc_otg_qh_t *_qh)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ if (list_empty(&_qh->qh_list_entry)) {
+ /* QH is not in a schedule. */
+ goto done;
+ }
+
+ if (dwc_qh_is_non_per(_qh)) {
+ if (_hcd->non_periodic_qh_ptr == &_qh->qh_list_entry) {
+ _hcd->non_periodic_qh_ptr = _hcd->non_periodic_qh_ptr->next;
+ }
+ list_del_init(&_qh->qh_list_entry);
+ } else {
+ deschedule_periodic(_hcd, _qh);
+ }
+
+ done:
+ local_irq_restore(flags);
+}
+
+/**
+ * Defers a QH. For non-periodic QHs, removes the QH from the active
+ * non-periodic schedule. The QH is added to the deferred non-periodic
+ * schedule if any QTDs are still attached to the QH.
+ */
+int dwc_otg_hcd_qh_deferr(dwc_otg_hcd_t * _hcd, dwc_otg_qh_t * _qh, int delay)
+{
+ int deact = 1;
+ unsigned long flags;
+ local_irq_save(flags);
+ if (dwc_qh_is_non_per(_qh)) {
+ _qh->sched_frame =
+ dwc_frame_num_inc(_hcd->frame_number,
+ delay);
+ _qh->channel = NULL;
+ _qh->qtd_in_process = NULL;
+ deact = 0;
+ dwc_otg_hcd_qh_remove(_hcd, _qh);
+ if (!list_empty(&_qh->qtd_list)) {
+ /* Add back to deferred non-periodic schedule. */
+ dwc_otg_hcd_qh_add_deferred(_hcd, _qh);
+ }
+ }
+ local_irq_restore(flags);
+ return deact;
+}
+
+/**
+ * Deactivates a QH. For non-periodic QHs, removes the QH from the active
+ * non-periodic schedule. The QH is added to the inactive non-periodic
+ * schedule if any QTDs are still attached to the QH.
+ *
+ * For periodic QHs, the QH is removed from the periodic queued schedule. If
+ * there are any QTDs still attached to the QH, the QH is added to either the
+ * periodic inactive schedule or the periodic ready schedule and its next
+ * scheduled frame is calculated. The QH is placed in the ready schedule if
+ * the scheduled frame has been reached already. Otherwise it's placed in the
+ * inactive schedule. If there are no QTDs attached to the QH, the QH is
+ * completely removed from the periodic schedule.
+ */
+void dwc_otg_hcd_qh_deactivate(dwc_otg_hcd_t *_hcd, dwc_otg_qh_t *_qh, int sched_next_periodic_split)
+{
+ unsigned long flags;
+ local_irq_save(flags);
+
+ if (dwc_qh_is_non_per(_qh)) {
+ dwc_otg_hcd_qh_remove(_hcd, _qh);
+ if (!list_empty(&_qh->qtd_list)) {
+ /* Add back to inactive non-periodic schedule. */
+ dwc_otg_hcd_qh_add(_hcd, _qh);
+ }
+ } else {
+ uint16_t frame_number = dwc_otg_hcd_get_frame_number(dwc_otg_hcd_to_hcd(_hcd));
+
+ if (_qh->do_split) {
+ /* Schedule the next continuing periodic split transfer */
+ if (sched_next_periodic_split) {
+
+ _qh->sched_frame = frame_number;
+ if (dwc_frame_num_le(frame_number,
+ dwc_frame_num_inc(_qh->start_split_frame, 1))) {
+ /*
+ * Allow one frame to elapse after start
+ * split microframe before scheduling
+ * complete split, but DONT if we are
+ * doing the next start split in the
+ * same frame for an ISOC out.
+ */
+ if ((_qh->ep_type != USB_ENDPOINT_XFER_ISOC) || (_qh->ep_is_in != 0)) {
+ _qh->sched_frame = dwc_frame_num_inc(_qh->sched_frame, 1);
+ }
+ }
+ } else {
+ _qh->sched_frame = dwc_frame_num_inc(_qh->start_split_frame,
+ _qh->interval);
+ if (dwc_frame_num_le(_qh->sched_frame, frame_number)) {
+ _qh->sched_frame = frame_number;
+ }
+ _qh->sched_frame |= 0x7;
+ _qh->start_split_frame = _qh->sched_frame;
+ }
+ } else {
+ _qh->sched_frame = dwc_frame_num_inc(_qh->sched_frame, _qh->interval);
+ if (dwc_frame_num_le(_qh->sched_frame, frame_number)) {
+ _qh->sched_frame = frame_number;
+ }
+ }
+
+ if (list_empty(&_qh->qtd_list)) {
+ dwc_otg_hcd_qh_remove(_hcd, _qh);
+ } else {
+ /*
+ * Remove from periodic_sched_queued and move to
+ * appropriate queue.
+ */
+ if (dwc_frame_num_le(_qh->sched_frame, frame_number)) {
+ list_move(&_qh->qh_list_entry,
+ &_hcd->periodic_sched_ready);
+ } else {
+ list_move(&_qh->qh_list_entry,
+ &_hcd->periodic_sched_inactive);
+ }
+ }
+ }
+
+ local_irq_restore(flags);
+}
+
+/**
+ * This function allocates and initializes a QTD.
+ *
+ * @param[in] _urb The URB to create a QTD from. Each URB-QTD pair will end up
+ * pointing to each other so each pair should have a unique correlation.
+ *
+ * @return Returns pointer to the newly allocated QTD, or NULL on error. */
+dwc_otg_qtd_t *dwc_otg_hcd_qtd_create (struct urb *_urb)
+{
+ dwc_otg_qtd_t *qtd;
+
+ qtd = dwc_otg_hcd_qtd_alloc ();
+ if (qtd == NULL) {
+ return NULL;
+ }
+
+ dwc_otg_hcd_qtd_init (qtd, _urb);
+ return qtd;
+}
+
+/**
+ * Initializes a QTD structure.
+ *
+ * @param[in] _qtd The QTD to initialize.
+ * @param[in] _urb The URB to use for initialization. */
+void dwc_otg_hcd_qtd_init (dwc_otg_qtd_t *_qtd, struct urb *_urb)
+{
+ memset (_qtd, 0, sizeof (dwc_otg_qtd_t));
+ _qtd->urb = _urb;
+ if (usb_pipecontrol(_urb->pipe)) {
+ /*
+ * The only time the QTD data toggle is used is on the data
+ * phase of control transfers. This phase always starts with
+ * DATA1.
+ */
+ _qtd->data_toggle = DWC_OTG_HC_PID_DATA1;
+ _qtd->control_phase = DWC_OTG_CONTROL_SETUP;
+ }
+
+ /* start split */
+ _qtd->complete_split = 0;
+ _qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_ALL;
+ _qtd->isoc_split_offset = 0;
+
+ /* Store the qtd ptr in the urb to reference what QTD. */
+ _urb->hcpriv = _qtd;
+ return;
+}
+
+/**
+ * This function adds a QTD to the QTD-list of a QH. It will find the correct
+ * QH to place the QTD into. If it does not find a QH, then it will create a
+ * new QH. If the QH to which the QTD is added is not currently scheduled, it
+ * is placed into the proper schedule based on its EP type.
+ *
+ * @param[in] _qtd The QTD to add
+ * @param[in] _dwc_otg_hcd The DWC HCD structure
+ *
+ * @return 0 if successful, negative error code otherwise.
+ */
+int dwc_otg_hcd_qtd_add(dwc_otg_qtd_t * _qtd, dwc_otg_hcd_t * _dwc_otg_hcd)
+{
+ struct usb_host_endpoint *ep;
+ dwc_otg_qh_t *qh;
+ unsigned long flags;
+ int retval = 0;
+ struct urb *urb = _qtd->urb;
+
+ local_irq_save(flags);
+
+ /*
+ * Get the QH which holds the QTD-list to insert to. Create QH if it
+ * doesn't exist.
+ */
+ ep = dwc_urb_to_endpoint(urb);
+ qh = (dwc_otg_qh_t *)ep->hcpriv;
+ if (qh == NULL) {
+ qh = dwc_otg_hcd_qh_create (_dwc_otg_hcd, urb);
+ if (qh == NULL) {
+ retval = -1;
+ goto done;
+ }
+ ep->hcpriv = qh;
+ }
+
+ _qtd->qtd_qh_ptr = qh;
+ retval = dwc_otg_hcd_qh_add(_dwc_otg_hcd, qh);
+ if (retval == 0) {
+ list_add_tail(&_qtd->qtd_list_entry, &qh->qtd_list);
+ }
+
+ done:
+ local_irq_restore(flags);
+ return retval;
+}
+
+#endif /* DWC_DEVICE_ONLY */
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_ifx.c
@@ -0,0 +1,100 @@
+/******************************************************************************
+**
+** FILE NAME : dwc_otg_ifx.c
+** PROJECT : Twinpass/Danube
+** MODULES : DWC OTG USB
+**
+** DATE : 12 Auguest 2007
+** AUTHOR : Sung Winder
+** DESCRIPTION : Platform specific initialization.
+** COPYRIGHT : Copyright (c) 2007
+** Infineon Technologies AG
+** 2F, No.2, Li-Hsin Rd., Hsinchu Science Park,
+** Hsin-chu City, 300 Taiwan.
+**
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU General Public License as published by
+** the Free Software Foundation; either version 2 of the License, or
+** (at your option) any later version.
+**
+** HISTORY
+** $Date $Author $Comment
+** 12 Auguest 2007 Sung Winder Initiate Version
+*******************************************************************************/
+#include "dwc_otg_ifx.h"
+
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/gpio.h>
+
+#include <asm/io.h>
+//#include <asm/mach-ifxmips/ifxmips.h>
+#include <lantiq_soc.h>
+
+#define IFXMIPS_GPIO_BASE_ADDR (0xBE100B00)
+
+#define IFXMIPS_GPIO_P0_OUT ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x0010))
+#define IFXMIPS_GPIO_P1_OUT ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x0040))
+#define IFXMIPS_GPIO_P0_IN ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x0014))
+#define IFXMIPS_GPIO_P1_IN ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x0044))
+#define IFXMIPS_GPIO_P0_DIR ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x0018))
+#define IFXMIPS_GPIO_P1_DIR ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x0048))
+#define IFXMIPS_GPIO_P0_ALTSEL0 ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x001C))
+#define IFXMIPS_GPIO_P1_ALTSEL0 ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x004C))
+#define IFXMIPS_GPIO_P0_ALTSEL1 ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x0020))
+#define IFXMIPS_GPIO_P1_ALTSEL1 ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x0050))
+#define IFXMIPS_GPIO_P0_OD ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x0024))
+#define IFXMIPS_GPIO_P1_OD ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x0054))
+#define IFXMIPS_GPIO_P0_STOFF ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x0028))
+#define IFXMIPS_GPIO_P1_STOFF ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x0058))
+#define IFXMIPS_GPIO_P0_PUDSEL ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x002C))
+#define IFXMIPS_GPIO_P1_PUDSEL ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x005C))
+#define IFXMIPS_GPIO_P0_PUDEN ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x0030))
+#define IFXMIPS_GPIO_P1_PUDEN ((u32 *)(IFXMIPS_GPIO_BASE_ADDR + 0x0060))
+
+
+#define writel ltq_w32
+#define readl ltq_r32
+void dwc_otg_power_on (void)
+{
+ // clear power
+ writel(readl(DANUBE_PMU_PWDCR) | 0x41, DANUBE_PMU_PWDCR);
+ // set clock gating
+ writel(readl(DANUBE_CGU_IFCCR) | 0x30, DANUBE_CGU_IFCCR);
+ // set power
+ writel(readl(DANUBE_PMU_PWDCR) & ~0x1, DANUBE_PMU_PWDCR);
+ writel(readl(DANUBE_PMU_PWDCR) & ~0x40, DANUBE_PMU_PWDCR);
+ writel(readl(DANUBE_PMU_PWDCR) & ~0x8000, DANUBE_PMU_PWDCR);
+
+#if 1//defined (DWC_HOST_ONLY)
+ // make the hardware be a host controller (default)
+ //clear_bit (DANUBE_USBCFG_HDSEL_BIT, (volatile unsigned long *)DANUBE_RCU_UBSCFG);
+ writel(readl(DANUBE_RCU_UBSCFG) & ~(1<<DANUBE_USBCFG_HDSEL_BIT), DANUBE_RCU_UBSCFG);
+
+ //#elif defined (DWC_DEVICE_ONLY)
+ /* set the controller to the device mode */
+ // set_bit (DANUBE_USBCFG_HDSEL_BIT, (volatile unsigned long *)DANUBE_RCU_UBSCFG);
+#else
+#error "For Danube/Twinpass, it should be HOST or Device Only."
+#endif
+
+ // set the HC's byte-order to big-endian
+ //set_bit (DANUBE_USBCFG_HOST_END_BIT, (volatile unsigned long *)DANUBE_RCU_UBSCFG);
+ writel(readl(DANUBE_RCU_UBSCFG) | (1<<DANUBE_USBCFG_HOST_END_BIT), DANUBE_RCU_UBSCFG);
+ //clear_bit (DANUBE_USBCFG_SLV_END_BIT, (volatile unsigned long *)DANUBE_RCU_UBSCFG);
+ writel(readl(DANUBE_RCU_UBSCFG) & ~(1<<DANUBE_USBCFG_SLV_END_BIT), DANUBE_RCU_UBSCFG);
+ //writel(0x400, DANUBE_RCU_UBSCFG);
+
+ // PHY configurations.
+ writel (0x14014, (volatile unsigned long *)0xbe10103c);
+}
+
+int ifx_usb_hc_init(unsigned long base_addr, int irq)
+{
+ return 0;
+}
+
+void ifx_usb_hc_remove(void)
+{
+}
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_ifx.h
@@ -0,0 +1,85 @@
+/******************************************************************************
+**
+** FILE NAME : dwc_otg_ifx.h
+** PROJECT : Twinpass/Danube
+** MODULES : DWC OTG USB
+**
+** DATE : 12 April 2007
+** AUTHOR : Sung Winder
+** DESCRIPTION : Platform specific initialization.
+** COPYRIGHT : Copyright (c) 2007
+** Infineon Technologies AG
+** 2F, No.2, Li-Hsin Rd., Hsinchu Science Park,
+** Hsin-chu City, 300 Taiwan.
+**
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU General Public License as published by
+** the Free Software Foundation; either version 2 of the License, or
+** (at your option) any later version.
+**
+** HISTORY
+** $Date $Author $Comment
+** 12 April 2007 Sung Winder Initiate Version
+*******************************************************************************/
+#if !defined(__DWC_OTG_IFX_H__)
+#define __DWC_OTG_IFX_H__
+
+#include <linux/irq.h>
+#include <irq.h>
+
+// 20070316, winder added.
+#ifndef SZ_256K
+#define SZ_256K 0x00040000
+#endif
+
+extern void dwc_otg_power_on (void);
+
+/* FIXME: The current Linux-2.6 do not have these header files, but anyway, we need these. */
+// #include <asm/danube/danube.h>
+// #include <asm/ifx/irq.h>
+
+/* winder, I used the Danube parameter as default. *
+ * We could change this through module param. */
+#define IFX_USB_IOMEM_BASE 0x1e101000
+#define IFX_USB_IOMEM_SIZE SZ_256K
+#define IFX_USB_IRQ LTQ_USB_INT
+
+/**
+ * This function is called to set correct clock gating and power.
+ * For Twinpass/Danube board.
+ */
+#ifndef DANUBE_RCU_BASE_ADDR
+#define DANUBE_RCU_BASE_ADDR (0xBF203000)
+#endif
+
+#ifndef DANUBE_CGU
+#define DANUBE_CGU (0xBF103000)
+#endif
+#ifndef DANUBE_CGU_IFCCR
+/***CGU Interface Clock Control Register***/
+#define DANUBE_CGU_IFCCR ((volatile u32*)(DANUBE_CGU+ 0x0018))
+#endif
+
+#ifndef DANUBE_PMU
+#define DANUBE_PMU (KSEG1+0x1F102000)
+#endif
+#ifndef DANUBE_PMU_PWDCR
+/* PMU Power down Control Register */
+#define DANUBE_PMU_PWDCR ((volatile u32*)(DANUBE_PMU+0x001C))
+#endif
+
+
+#define DANUBE_RCU_UBSCFG ((volatile u32*)(DANUBE_RCU_BASE_ADDR + 0x18))
+#define DANUBE_USBCFG_HDSEL_BIT 11 // 0:host, 1:device
+#define DANUBE_USBCFG_HOST_END_BIT 10 // 0:little_end, 1:big_end
+#define DANUBE_USBCFG_SLV_END_BIT 9 // 0:little_end, 1:big_end
+
+extern void ltq_mask_and_ack_irq(struct irq_data *d);
+
+static void inline mask_and_ack_ifx_irq(int x)
+{
+ struct irq_data d;
+ d.irq = x;
+ ltq_mask_and_ack_irq(&d);
+}
+#endif //__DWC_OTG_IFX_H__
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_plat.h
@@ -0,0 +1,269 @@
+/* ==========================================================================
+ * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/platform/dwc_otg_plat.h $
+ * $Revision: 1.1.1.1 $
+ * $Date: 2009-04-17 06:15:34 $
+ * $Change: 510301 $
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+
+#if !defined(__DWC_OTG_PLAT_H__)
+#define __DWC_OTG_PLAT_H__
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/list.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+
+/**
+ * @file
+ *
+ * This file contains the Platform Specific constants, interfaces
+ * (functions and macros) for Linux.
+ *
+ */
+/*#if !defined(__LINUX__)
+#error "The contents of this file is Linux specific!!!"
+#endif
+*/
+#include <lantiq_soc.h>
+#define writel ltq_w32
+#define readl ltq_r32
+
+/**
+ * Reads the content of a register.
+ *
+ * @param _reg address of register to read.
+ * @return contents of the register.
+ *
+
+ * Usage:<br>
+ * <code>uint32_t dev_ctl = dwc_read_reg32(&dev_regs->dctl);</code>
+ */
+static __inline__ uint32_t dwc_read_reg32( volatile uint32_t *_reg)
+{
+ return readl(_reg);
+};
+
+/**
+ * Writes a register with a 32 bit value.
+ *
+ * @param _reg address of register to read.
+ * @param _value to write to _reg.
+ *
+ * Usage:<br>
+ * <code>dwc_write_reg32(&dev_regs->dctl, 0); </code>
+ */
+static __inline__ void dwc_write_reg32( volatile uint32_t *_reg, const uint32_t _value)
+{
+ writel( _value, _reg );
+};
+
+/**
+ * This function modifies bit values in a register. Using the
+ * algorithm: (reg_contents & ~clear_mask) | set_mask.
+ *
+ * @param _reg address of register to read.
+ * @param _clear_mask bit mask to be cleared.
+ * @param _set_mask bit mask to be set.
+ *
+ * Usage:<br>
+ * <code> // Clear the SOF Interrupt Mask bit and <br>
+ * // set the OTG Interrupt mask bit, leaving all others as they were.
+ * dwc_modify_reg32(&dev_regs->gintmsk, DWC_SOF_INT, DWC_OTG_INT);</code>
+ */
+static __inline__
+ void dwc_modify_reg32( volatile uint32_t *_reg, const uint32_t _clear_mask, const uint32_t _set_mask)
+{
+ writel( (readl(_reg) & ~_clear_mask) | _set_mask, _reg );
+};
+
+
+/**
+ * Wrapper for the OS micro-second delay function.
+ * @param[in] _usecs Microseconds of delay
+ */
+static __inline__ void UDELAY( const uint32_t _usecs )
+{
+ udelay( _usecs );
+}
+
+/**
+ * Wrapper for the OS milli-second delay function.
+ * @param[in] _msecs milliseconds of delay
+ */
+static __inline__ void MDELAY( const uint32_t _msecs )
+{
+ mdelay( _msecs );
+}
+
+/**
+ * Wrapper for the Linux spin_lock. On the ARM (Integrator)
+ * spin_lock() is a nop.
+ *
+ * @param _lock Pointer to the spinlock.
+ */
+static __inline__ void SPIN_LOCK( spinlock_t *_lock )
+{
+ spin_lock(_lock);
+}
+
+/**
+ * Wrapper for the Linux spin_unlock. On the ARM (Integrator)
+ * spin_lock() is a nop.
+ *
+ * @param _lock Pointer to the spinlock.
+ */
+static __inline__ void SPIN_UNLOCK( spinlock_t *_lock )
+{
+ spin_unlock(_lock);
+}
+
+/**
+ * Wrapper (macro) for the Linux spin_lock_irqsave. On the ARM
+ * (Integrator) spin_lock() is a nop.
+ *
+ * @param _l Pointer to the spinlock.
+ * @param _f unsigned long for irq flags storage.
+ */
+#define SPIN_LOCK_IRQSAVE( _l, _f ) { \
+ spin_lock_irqsave(_l,_f); \
+ }
+
+/**
+ * Wrapper (macro) for the Linux spin_unlock_irqrestore. On the ARM
+ * (Integrator) spin_lock() is a nop.
+ *
+ * @param _l Pointer to the spinlock.
+ * @param _f unsigned long for irq flags storage.
+ */
+#define SPIN_UNLOCK_IRQRESTORE( _l,_f ) {\
+ spin_unlock_irqrestore(_l,_f); \
+ }
+
+
+/*
+ * Debugging support vanishes in non-debug builds.
+ */
+
+
+/**
+ * The Debug Level bit-mask variable.
+ */
+extern uint32_t g_dbg_lvl;
+/**
+ * Set the Debug Level variable.
+ */
+static inline uint32_t SET_DEBUG_LEVEL( const uint32_t _new )
+{
+ uint32_t old = g_dbg_lvl;
+ g_dbg_lvl = _new;
+ return old;
+}
+
+/** When debug level has the DBG_CIL bit set, display CIL Debug messages. */
+#define DBG_CIL (0x2)
+/** When debug level has the DBG_CILV bit set, display CIL Verbose debug
+ * messages */
+#define DBG_CILV (0x20)
+/** When debug level has the DBG_PCD bit set, display PCD (Device) debug
+ * messages */
+#define DBG_PCD (0x4)
+/** When debug level has the DBG_PCDV set, display PCD (Device) Verbose debug
+ * messages */
+#define DBG_PCDV (0x40)
+/** When debug level has the DBG_HCD bit set, display Host debug messages */
+#define DBG_HCD (0x8)
+/** When debug level has the DBG_HCDV bit set, display Verbose Host debug
+ * messages */
+#define DBG_HCDV (0x80)
+/** When debug level has the DBG_HCD_URB bit set, display enqueued URBs in host
+ * mode. */
+#define DBG_HCD_URB (0x800)
+
+/** When debug level has any bit set, display debug messages */
+#define DBG_ANY (0xFF)
+
+/** All debug messages off */
+#define DBG_OFF 0
+
+/** Prefix string for DWC_DEBUG print macros. */
+#define USB_DWC "DWC_otg: "
+
+/**
+ * Print a debug message when the Global debug level variable contains
+ * the bit defined in <code>lvl</code>.
+ *
+ * @param[in] lvl - Debug level, use one of the DBG_ constants above.
+ * @param[in] x - like printf
+ *
+ * Example:<p>
+ * <code>
+ * DWC_DEBUGPL( DBG_ANY, "%s(%p)\n", __func__, _reg_base_addr);
+ * </code>
+ * <br>
+ * results in:<br>
+ * <code>
+ * usb-DWC_otg: dwc_otg_cil_init(ca867000)
+ * </code>
+ */
+#ifdef DEBUG
+
+# define DWC_DEBUGPL(lvl, x...) do{ if ((lvl)&g_dbg_lvl)printk( KERN_DEBUG USB_DWC x ); }while(0)
+# define DWC_DEBUGP(x...) DWC_DEBUGPL(DBG_ANY, x )
+
+# define CHK_DEBUG_LEVEL(level) ((level) & g_dbg_lvl)
+
+#else
+
+# define DWC_DEBUGPL(lvl, x...) do{}while(0)
+# define DWC_DEBUGP(x...)
+
+# define CHK_DEBUG_LEVEL(level) (0)
+
+#endif /*DEBUG*/
+
+/**
+ * Print an Error message.
+ */
+#define DWC_ERROR(x...) printk( KERN_ERR USB_DWC x )
+/**
+ * Print a Warning message.
+ */
+#define DWC_WARN(x...) printk( KERN_WARNING USB_DWC x )
+/**
+ * Print a notice (normal but significant message).
+ */
+#define DWC_NOTICE(x...) printk( KERN_NOTICE USB_DWC x )
+/**
+ * Basic message printing.
+ */
+#define DWC_PRINT(x...) printk( KERN_INFO USB_DWC x )
+
+#endif
+
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_regs.h
@@ -0,0 +1,1797 @@
+/* ==========================================================================
+ * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/drivers/dwc_otg_regs.h $
+ * $Revision: 1.1.1.1 $
+ * $Date: 2009-04-17 06:15:34 $
+ * $Change: 631780 $
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+
+#ifndef __DWC_OTG_REGS_H__
+#define __DWC_OTG_REGS_H__
+
+/**
+ * @file
+ *
+ * This file contains the data structures for accessing the DWC_otg core registers.
+ *
+ * The application interfaces with the HS OTG core by reading from and
+ * writing to the Control and Status Register (CSR) space through the
+ * AHB Slave interface. These registers are 32 bits wide, and the
+ * addresses are 32-bit-block aligned.
+ * CSRs are classified as follows:
+ * - Core Global Registers
+ * - Device Mode Registers
+ * - Device Global Registers
+ * - Device Endpoint Specific Registers
+ * - Host Mode Registers
+ * - Host Global Registers
+ * - Host Port CSRs
+ * - Host Channel Specific Registers
+ *
+ * Only the Core Global registers can be accessed in both Device and
+ * Host modes. When the HS OTG core is operating in one mode, either
+ * Device or Host, the application must not access registers from the
+ * other mode. When the core switches from one mode to another, the
+ * registers in the new mode of operation must be reprogrammed as they
+ * would be after a power-on reset.
+ */
+
+/****************************************************************************/
+/** DWC_otg Core registers .
+ * The dwc_otg_core_global_regs structure defines the size
+ * and relative field offsets for the Core Global registers.
+ */
+typedef struct dwc_otg_core_global_regs
+{
+ /** OTG Control and Status Register. <i>Offset: 000h</i> */
+ volatile uint32_t gotgctl;
+ /** OTG Interrupt Register. <i>Offset: 004h</i> */
+ volatile uint32_t gotgint;
+ /**Core AHB Configuration Register. <i>Offset: 008h</i> */
+ volatile uint32_t gahbcfg;
+#define DWC_GLBINTRMASK 0x0001
+#define DWC_DMAENABLE 0x0020
+#define DWC_NPTXEMPTYLVL_EMPTY 0x0080
+#define DWC_NPTXEMPTYLVL_HALFEMPTY 0x0000
+#define DWC_PTXEMPTYLVL_EMPTY 0x0100
+#define DWC_PTXEMPTYLVL_HALFEMPTY 0x0000
+
+
+ /**Core USB Configuration Register. <i>Offset: 00Ch</i> */
+ volatile uint32_t gusbcfg;
+ /**Core Reset Register. <i>Offset: 010h</i> */
+ volatile uint32_t grstctl;
+ /**Core Interrupt Register. <i>Offset: 014h</i> */
+ volatile uint32_t gintsts;
+ /**Core Interrupt Mask Register. <i>Offset: 018h</i> */
+ volatile uint32_t gintmsk;
+ /**Receive Status Queue Read Register (Read Only). <i>Offset: 01Ch</i> */
+ volatile uint32_t grxstsr;
+ /**Receive Status Queue Read & POP Register (Read Only). <i>Offset: 020h</i>*/
+ volatile uint32_t grxstsp;
+ /**Receive FIFO Size Register. <i>Offset: 024h</i> */
+ volatile uint32_t grxfsiz;
+ /**Non Periodic Transmit FIFO Size Register. <i>Offset: 028h</i> */
+ volatile uint32_t gnptxfsiz;
+ /**Non Periodic Transmit FIFO/Queue Status Register (Read
+ * Only). <i>Offset: 02Ch</i> */
+ volatile uint32_t gnptxsts;
+ /**I2C Access Register. <i>Offset: 030h</i> */
+ volatile uint32_t gi2cctl;
+ /**PHY Vendor Control Register. <i>Offset: 034h</i> */
+ volatile uint32_t gpvndctl;
+ /**General Purpose Input/Output Register. <i>Offset: 038h</i> */
+ volatile uint32_t ggpio;
+ /**User ID Register. <i>Offset: 03Ch</i> */
+ volatile uint32_t guid;
+ /**Synopsys ID Register (Read Only). <i>Offset: 040h</i> */
+ volatile uint32_t gsnpsid;
+ /**User HW Config1 Register (Read Only). <i>Offset: 044h</i> */
+ volatile uint32_t ghwcfg1;
+ /**User HW Config2 Register (Read Only). <i>Offset: 048h</i> */
+ volatile uint32_t ghwcfg2;
+#define DWC_SLAVE_ONLY_ARCH 0
+#define DWC_EXT_DMA_ARCH 1
+#define DWC_INT_DMA_ARCH 2
+
+#define DWC_MODE_HNP_SRP_CAPABLE 0
+#define DWC_MODE_SRP_ONLY_CAPABLE 1
+#define DWC_MODE_NO_HNP_SRP_CAPABLE 2
+#define DWC_MODE_SRP_CAPABLE_DEVICE 3
+#define DWC_MODE_NO_SRP_CAPABLE_DEVICE 4
+#define DWC_MODE_SRP_CAPABLE_HOST 5
+#define DWC_MODE_NO_SRP_CAPABLE_HOST 6
+
+ /**User HW Config3 Register (Read Only). <i>Offset: 04Ch</i> */
+ volatile uint32_t ghwcfg3;
+ /**User HW Config4 Register (Read Only). <i>Offset: 050h</i>*/
+ volatile uint32_t ghwcfg4;
+ /** Reserved <i>Offset: 054h-0FFh</i> */
+ uint32_t reserved[43];
+ /** Host Periodic Transmit FIFO Size Register. <i>Offset: 100h</i> */
+ volatile uint32_t hptxfsiz;
+ /** Device Periodic Transmit FIFO#n Register if dedicated fifos are disabled,
+ otherwise Device Transmit FIFO#n Register.
+ * <i>Offset: 104h + (FIFO_Number-1)*04h, 1 <= FIFO Number <= 15 (1<=n<=15).</i> */
+ //volatile uint32_t dptxfsiz[15];
+ volatile uint32_t dptxfsiz_dieptxf[15];
+} dwc_otg_core_global_regs_t;
+
+/**
+ * This union represents the bit fields of the Core OTG Control
+ * and Status Register (GOTGCTL). Set the bits using the bit
+ * fields then write the <i>d32</i> value to the register.
+ */
+typedef union gotgctl_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct
+ {
+ unsigned reserved31_21 : 11;
+ unsigned currmod : 1;
+ unsigned bsesvld : 1;
+ unsigned asesvld : 1;
+ unsigned reserved17 : 1;
+ unsigned conidsts : 1;
+ unsigned reserved15_12 : 4;
+ unsigned devhnpen : 1;
+ unsigned hstsethnpen : 1;
+ unsigned hnpreq : 1;
+ unsigned hstnegscs : 1;
+ unsigned reserved7_2 : 6;
+ unsigned sesreq : 1;
+ unsigned sesreqscs : 1;
+ } b;
+} gotgctl_data_t;
+
+/**
+ * This union represents the bit fields of the Core OTG Interrupt Register
+ * (GOTGINT). Set/clear the bits using the bit fields then write the <i>d32</i>
+ * value to the register.
+ */
+typedef union gotgint_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct
+ {
+ /** Current Mode */
+ unsigned reserved31_20 : 12;
+ /** Debounce Done */
+ unsigned debdone : 1;
+ /** A-Device Timeout Change */
+ unsigned adevtoutchng : 1;
+ /** Host Negotiation Detected */
+ unsigned hstnegdet : 1;
+ unsigned reserver16_10 : 7;
+ /** Host Negotiation Success Status Change */
+ unsigned hstnegsucstschng : 1;
+ /** Session Request Success Status Change */
+ unsigned sesreqsucstschng : 1;
+ unsigned reserved3_7 : 5;
+ /** Session End Detected */
+ unsigned sesenddet : 1;
+ /** Current Mode */
+ unsigned reserved1_0 : 2;
+ } b;
+} gotgint_data_t;
+
+
+/**
+ * This union represents the bit fields of the Core AHB Configuration
+ * Register (GAHBCFG). Set/clear the bits using the bit fields then
+ * write the <i>d32</i> value to the register.
+ */
+typedef union gahbcfg_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct
+ {
+#define DWC_GAHBCFG_TXFEMPTYLVL_EMPTY 1
+#define DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY 0
+ unsigned reserved9_31 : 23;
+ unsigned ptxfemplvl : 1;
+ unsigned nptxfemplvl_txfemplvl : 1;
+#define DWC_GAHBCFG_DMAENABLE 1
+ unsigned reserved : 1;
+ unsigned dmaenable : 1;
+#define DWC_GAHBCFG_INT_DMA_BURST_SINGLE 0
+#define DWC_GAHBCFG_INT_DMA_BURST_INCR 1
+#define DWC_GAHBCFG_INT_DMA_BURST_INCR4 3
+#define DWC_GAHBCFG_INT_DMA_BURST_INCR8 5
+#define DWC_GAHBCFG_INT_DMA_BURST_INCR16 7
+ unsigned hburstlen : 4;
+ unsigned glblintrmsk : 1;
+#define DWC_GAHBCFG_GLBINT_ENABLE 1
+
+ } b;
+} gahbcfg_data_t;
+
+/**
+ * This union represents the bit fields of the Core USB Configuration
+ * Register (GUSBCFG). Set the bits using the bit fields then write
+ * the <i>d32</i> value to the register.
+ */
+typedef union gusbcfg_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct
+ {
+ unsigned corrupt_tx_packet: 1; /*fscz*/
+ unsigned force_device_mode: 1;
+ unsigned force_host_mode: 1;
+ unsigned reserved23_28 : 6;
+ unsigned term_sel_dl_pulse : 1;
+ unsigned ulpi_int_vbus_indicator : 1;
+ unsigned ulpi_ext_vbus_drv : 1;
+ unsigned ulpi_clk_sus_m : 1;
+ unsigned ulpi_auto_res : 1;
+ unsigned ulpi_fsls : 1;
+ unsigned otgutmifssel : 1;
+ unsigned phylpwrclksel : 1;
+ unsigned nptxfrwnden : 1;
+ unsigned usbtrdtim : 4;
+ unsigned hnpcap : 1;
+ unsigned srpcap : 1;
+ unsigned ddrsel : 1;
+ unsigned physel : 1;
+ unsigned fsintf : 1;
+ unsigned ulpi_utmi_sel : 1;
+ unsigned phyif : 1;
+ unsigned toutcal : 3;
+ } b;
+} gusbcfg_data_t;
+
+/**
+ * This union represents the bit fields of the Core Reset Register
+ * (GRSTCTL). Set/clear the bits using the bit fields then write the
+ * <i>d32</i> value to the register.
+ */
+typedef union grstctl_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct
+ {
+ /** AHB Master Idle. Indicates the AHB Master State
+ * Machine is in IDLE condition. */
+ unsigned ahbidle : 1;
+ /** DMA Request Signal. Indicated DMA request is in
+ * probress. Used for debug purpose. */
+ unsigned dmareq : 1;
+ /** Reserved */
+ unsigned reserved29_11 : 19;
+ /** TxFIFO Number (TxFNum) (Device and Host).
+ *
+ * This is the FIFO number which needs to be flushed,
+ * using the TxFIFO Flush bit. This field should not
+ * be changed until the TxFIFO Flush bit is cleared by
+ * the core.
+ * - 0x0 : Non Periodic TxFIFO Flush
+ * - 0x1 : Periodic TxFIFO #1 Flush in device mode
+ * or Periodic TxFIFO in host mode
+ * - 0x2 : Periodic TxFIFO #2 Flush in device mode.
+ * - ...
+ * - 0xF : Periodic TxFIFO #15 Flush in device mode
+ * - 0x10: Flush all the Transmit NonPeriodic and
+ * Transmit Periodic FIFOs in the core
+ */
+ unsigned txfnum : 5;
+ /** TxFIFO Flush (TxFFlsh) (Device and Host).
+ *
+ * This bit is used to selectively flush a single or
+ * all transmit FIFOs. The application must first
+ * ensure that the core is not in the middle of a
+ * transaction. <p>The application should write into
+ * this bit, only after making sure that neither the
+ * DMA engine is writing into the TxFIFO nor the MAC
+ * is reading the data out of the FIFO. <p>The
+ * application should wait until the core clears this
+ * bit, before performing any operations. This bit
+ * will takes 8 clocks (slowest of PHY or AHB clock)
+ * to clear.
+ */
+ unsigned txfflsh : 1;
+ /** RxFIFO Flush (RxFFlsh) (Device and Host)
+ *
+ * The application can flush the entire Receive FIFO
+ * using this bit. <p>The application must first
+ * ensure that the core is not in the middle of a
+ * transaction. <p>The application should write into
+ * this bit, only after making sure that neither the
+ * DMA engine is reading from the RxFIFO nor the MAC
+ * is writing the data in to the FIFO. <p>The
+ * application should wait until the bit is cleared
+ * before performing any other operations. This bit
+ * will takes 8 clocks (slowest of PHY or AHB clock)
+ * to clear.
+ */
+ unsigned rxfflsh : 1;
+ /** In Token Sequence Learning Queue Flush
+ * (INTknQFlsh) (Device Only)
+ */
+ unsigned intknqflsh : 1;
+ /** Host Frame Counter Reset (Host Only)<br>
+ *
+ * The application can reset the (micro)frame number
+ * counter inside the core, using this bit. When the
+ * (micro)frame counter is reset, the subsequent SOF
+ * sent out by the core, will have a (micro)frame
+ * number of 0.
+ */
+ unsigned hstfrm : 1;
+ /** Hclk Soft Reset
+ *
+ * The application uses this bit to reset the control logic in
+ * the AHB clock domain. Only AHB clock domain pipelines are
+ * reset.
+ */
+ unsigned hsftrst : 1;
+ /** Core Soft Reset (CSftRst) (Device and Host)
+ *
+ * The application can flush the control logic in the
+ * entire core using this bit. This bit resets the
+ * pipelines in the AHB Clock domain as well as the
+ * PHY Clock domain.
+ *
+ * The state machines are reset to an IDLE state, the
+ * control bits in the CSRs are cleared, all the
+ * transmit FIFOs and the receive FIFO are flushed.
+ *
+ * The status mask bits that control the generation of
+ * the interrupt, are cleared, to clear the
+ * interrupt. The interrupt status bits are not
+ * cleared, so the application can get the status of
+ * any events that occurred in the core after it has
+ * set this bit.
+ *
+ * Any transactions on the AHB are terminated as soon
+ * as possible following the protocol. Any
+ * transactions on the USB are terminated immediately.
+ *
+ * The configuration settings in the CSRs are
+ * unchanged, so the software doesn't have to
+ * reprogram these registers (Device
+ * Configuration/Host Configuration/Core System
+ * Configuration/Core PHY Configuration).
+ *
+ * The application can write to this bit, any time it
+ * wants to reset the core. This is a self clearing
+ * bit and the core clears this bit after all the
+ * necessary logic is reset in the core, which may
+ * take several clocks, depending on the current state
+ * of the core.
+ */
+ unsigned csftrst : 1;
+ } b;
+} grstctl_t;
+
+
+/**
+ * This union represents the bit fields of the Core Interrupt Mask
+ * Register (GINTMSK). Set/clear the bits using the bit fields then
+ * write the <i>d32</i> value to the register.
+ */
+typedef union gintmsk_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct
+ {
+ unsigned wkupintr : 1;
+ unsigned sessreqintr : 1;
+ unsigned disconnect : 1;
+ unsigned conidstschng : 1;
+ unsigned reserved27 : 1;
+ unsigned ptxfempty : 1;
+ unsigned hcintr : 1;
+ unsigned portintr : 1;
+ unsigned reserved22_23 : 2;
+ unsigned incomplisoout : 1;
+ unsigned incomplisoin : 1;
+ unsigned outepintr : 1;
+ unsigned inepintr : 1;
+ unsigned epmismatch : 1;
+ unsigned reserved16 : 1;
+ unsigned eopframe : 1;
+ unsigned isooutdrop : 1;
+ unsigned enumdone : 1;
+ unsigned usbreset : 1;
+ unsigned usbsuspend : 1;
+ unsigned erlysuspend : 1;
+ unsigned i2cintr : 1;
+ unsigned reserved8 : 1;
+ unsigned goutnakeff : 1;
+ unsigned ginnakeff : 1;
+ unsigned nptxfempty : 1;
+ unsigned rxstsqlvl : 1;
+ unsigned sofintr : 1;
+ unsigned otgintr : 1;
+ unsigned modemismatch : 1;
+ unsigned reserved0 : 1;
+ } b;
+} gintmsk_data_t;
+/**
+ * This union represents the bit fields of the Core Interrupt Register
+ * (GINTSTS). Set/clear the bits using the bit fields then write the
+ * <i>d32</i> value to the register.
+ */
+typedef union gintsts_data
+{
+ /** raw register data */
+ uint32_t d32;
+#define DWC_SOF_INTR_MASK 0x0008
+ /** register bits */
+ struct
+ {
+#define DWC_HOST_MODE 1
+ unsigned wkupintr : 1;
+ unsigned sessreqintr : 1;
+ unsigned disconnect : 1;
+ unsigned conidstschng : 1;
+ unsigned reserved27 : 1;
+ unsigned ptxfempty : 1;
+ unsigned hcintr : 1;
+ unsigned portintr : 1;
+ unsigned reserved22_23 : 2;
+ unsigned incomplisoout : 1;
+ unsigned incomplisoin : 1;
+ unsigned outepintr : 1;
+ unsigned inepint: 1;
+ unsigned epmismatch : 1;
+ unsigned intokenrx : 1;
+ unsigned eopframe : 1;
+ unsigned isooutdrop : 1;
+ unsigned enumdone : 1;
+ unsigned usbreset : 1;
+ unsigned usbsuspend : 1;
+ unsigned erlysuspend : 1;
+ unsigned i2cintr : 1;
+ unsigned reserved8 : 1;
+ unsigned goutnakeff : 1;
+ unsigned ginnakeff : 1;
+ unsigned nptxfempty : 1;
+ unsigned rxstsqlvl : 1;
+ unsigned sofintr : 1;
+ unsigned otgintr : 1;
+ unsigned modemismatch : 1;
+ unsigned curmode : 1;
+ } b;
+} gintsts_data_t;
+
+
+/**
+ * This union represents the bit fields in the Device Receive Status Read and
+ * Pop Registers (GRXSTSR, GRXSTSP) Read the register into the <i>d32</i>
+ * element then read out the bits using the <i>b</i>it elements.
+ */
+typedef union device_grxsts_data {
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned reserved : 7;
+ unsigned fn : 4;
+#define DWC_STS_DATA_UPDT 0x2 // OUT Data Packet
+#define DWC_STS_XFER_COMP 0x3 // OUT Data Transfer Complete
+
+#define DWC_DSTS_GOUT_NAK 0x1 // Global OUT NAK
+#define DWC_DSTS_SETUP_COMP 0x4 // Setup Phase Complete
+#define DWC_DSTS_SETUP_UPDT 0x6 // SETUP Packet
+ unsigned pktsts : 4;
+ unsigned dpid : 2;
+ unsigned bcnt : 11;
+ unsigned epnum : 4;
+ } b;
+} device_grxsts_data_t;
+
+/**
+ * This union represents the bit fields in the Host Receive Status Read and
+ * Pop Registers (GRXSTSR, GRXSTSP) Read the register into the <i>d32</i>
+ * element then read out the bits using the <i>b</i>it elements.
+ */
+typedef union host_grxsts_data {
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned reserved31_21 : 11;
+#define DWC_GRXSTS_PKTSTS_IN 0x2
+#define DWC_GRXSTS_PKTSTS_IN_XFER_COMP 0x3
+#define DWC_GRXSTS_PKTSTS_DATA_TOGGLE_ERR 0x5
+#define DWC_GRXSTS_PKTSTS_CH_HALTED 0x7
+ unsigned pktsts : 4;
+ unsigned dpid : 2;
+ unsigned bcnt : 11;
+ unsigned chnum : 4;
+ } b;
+} host_grxsts_data_t;
+
+/**
+ * This union represents the bit fields in the FIFO Size Registers (HPTXFSIZ,
+ * GNPTXFSIZ, DPTXFSIZn). Read the register into the <i>d32</i> element then
+ * read out the bits using the <i>b</i>it elements.
+ */
+typedef union fifosize_data {
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned depth : 16;
+ unsigned startaddr : 16;
+ } b;
+} fifosize_data_t;
+
+/**
+ * This union represents the bit fields in the Non-Periodic Transmit
+ * FIFO/Queue Status Register (GNPTXSTS). Read the register into the
+ * <i>d32</i> element then read out the bits using the <i>b</i>it
+ * elements.
+ */
+typedef union gnptxsts_data {
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned reserved : 1;
+ /** Top of the Non-Periodic Transmit Request Queue
+ * - bits 30:27 - Channel/EP Number
+ * - bits 26:25 - Token Type
+ * - bit 24 - Terminate (Last entry for the selected
+ * channel/EP)
+ * - 2'b00 - IN/OUT
+ * - 2'b01 - Zero Length OUT
+ * - 2'b10 - PING/Complete Split
+ * - 2'b11 - Channel Halt
+
+ */
+ unsigned nptxqtop_chnep : 4;
+ unsigned nptxqtop_token : 2;
+ unsigned nptxqtop_terminate : 1;
+ unsigned nptxqspcavail : 8;
+ unsigned nptxfspcavail : 16;
+ } b;
+} gnptxsts_data_t;
+
+/**
+ * This union represents the bit fields in the Transmit
+ * FIFO Status Register (DTXFSTS). Read the register into the
+ * <i>d32</i> element then read out the bits using the <i>b</i>it
+ * elements.
+ */
+typedef union dtxfsts_data /* fscz */ //*
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned reserved : 16;
+ unsigned txfspcavail : 16;
+ } b;
+} dtxfsts_data_t;
+
+/**
+ * This union represents the bit fields in the I2C Control Register
+ * (I2CCTL). Read the register into the <i>d32</i> element then read out the
+ * bits using the <i>b</i>it elements.
+ */
+typedef union gi2cctl_data {
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned bsydne : 1;
+ unsigned rw : 1;
+ unsigned reserved : 2;
+ unsigned i2cdevaddr : 2;
+ unsigned i2csuspctl : 1;
+ unsigned ack : 1;
+ unsigned i2cen : 1;
+ unsigned addr : 7;
+ unsigned regaddr : 8;
+ unsigned rwdata : 8;
+ } b;
+} gi2cctl_data_t;
+
+/**
+ * This union represents the bit fields in the User HW Config1
+ * Register. Read the register into the <i>d32</i> element then read
+ * out the bits using the <i>b</i>it elements.
+ */
+typedef union hwcfg1_data {
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned ep_dir15 : 2;
+ unsigned ep_dir14 : 2;
+ unsigned ep_dir13 : 2;
+ unsigned ep_dir12 : 2;
+ unsigned ep_dir11 : 2;
+ unsigned ep_dir10 : 2;
+ unsigned ep_dir9 : 2;
+ unsigned ep_dir8 : 2;
+ unsigned ep_dir7 : 2;
+ unsigned ep_dir6 : 2;
+ unsigned ep_dir5 : 2;
+ unsigned ep_dir4 : 2;
+ unsigned ep_dir3 : 2;
+ unsigned ep_dir2 : 2;
+ unsigned ep_dir1 : 2;
+ unsigned ep_dir0 : 2;
+ } b;
+} hwcfg1_data_t;
+
+/**
+ * This union represents the bit fields in the User HW Config2
+ * Register. Read the register into the <i>d32</i> element then read
+ * out the bits using the <i>b</i>it elements.
+ */
+typedef union hwcfg2_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ /* GHWCFG2 */
+ unsigned reserved31 : 1;
+ unsigned dev_token_q_depth : 5;
+ unsigned host_perio_tx_q_depth : 2;
+ unsigned nonperio_tx_q_depth : 2;
+ unsigned rx_status_q_depth : 2;
+ unsigned dynamic_fifo : 1;
+ unsigned perio_ep_supported : 1;
+ unsigned num_host_chan : 4;
+ unsigned num_dev_ep : 4;
+ unsigned fs_phy_type : 2;
+#define DWC_HWCFG2_HS_PHY_TYPE_NOT_SUPPORTED 0
+#define DWC_HWCFG2_HS_PHY_TYPE_UTMI 1
+#define DWC_HWCFG2_HS_PHY_TYPE_ULPI 2
+#define DWC_HWCFG2_HS_PHY_TYPE_UTMI_ULPI 3
+ unsigned hs_phy_type : 2;
+ unsigned point2point : 1;
+ unsigned architecture : 2;
+#define DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG 0
+#define DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG 1
+#define DWC_HWCFG2_OP_MODE_NO_HNP_SRP_CAPABLE_OTG 2
+#define DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE 3
+#define DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_DEVICE 4
+#define DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST 5
+#define DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_HOST 6
+ unsigned op_mode : 3;
+ } b;
+} hwcfg2_data_t;
+
+/**
+ * This union represents the bit fields in the User HW Config3
+ * Register. Read the register into the <i>d32</i> element then read
+ * out the bits using the <i>b</i>it elements.
+ */
+typedef union hwcfg3_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ /* GHWCFG3 */
+ unsigned dfifo_depth : 16;
+ unsigned reserved15_13 : 3;
+ unsigned ahb_phy_clock_synch : 1;
+ unsigned synch_reset_type : 1;
+ unsigned optional_features : 1;
+ unsigned vendor_ctrl_if : 1;
+ unsigned i2c : 1;
+ unsigned otg_func : 1;
+ unsigned packet_size_cntr_width : 3;
+ unsigned xfer_size_cntr_width : 4;
+ } b;
+} hwcfg3_data_t;
+
+/**
+ * This union represents the bit fields in the User HW Config4
+ * Register. Read the register into the <i>d32</i> element then read
+ * out the bits using the <i>b</i>it elements.
+ */
+typedef union hwcfg4_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+unsigned reserved31_30 : 2; /* fscz */
+ unsigned num_in_eps : 4;
+ unsigned ded_fifo_en : 1;
+
+ unsigned session_end_filt_en : 1;
+ unsigned b_valid_filt_en : 1;
+ unsigned a_valid_filt_en : 1;
+ unsigned vbus_valid_filt_en : 1;
+ unsigned iddig_filt_en : 1;
+ unsigned num_dev_mode_ctrl_ep : 4;
+ unsigned utmi_phy_data_width : 2;
+ unsigned min_ahb_freq : 9;
+ unsigned power_optimiz : 1;
+ unsigned num_dev_perio_in_ep : 4;
+ } b;
+} hwcfg4_data_t;
+
+////////////////////////////////////////////
+// Device Registers
+/**
+ * Device Global Registers. <i>Offsets 800h-BFFh</i>
+ *
+ * The following structures define the size and relative field offsets
+ * for the Device Mode Registers.
+ *
+ * <i>These registers are visible only in Device mode and must not be
+ * accessed in Host mode, as the results are unknown.</i>
+ */
+typedef struct dwc_otg_dev_global_regs
+{
+ /** Device Configuration Register. <i>Offset 800h</i> */
+ volatile uint32_t dcfg;
+ /** Device Control Register. <i>Offset: 804h</i> */
+ volatile uint32_t dctl;
+ /** Device Status Register (Read Only). <i>Offset: 808h</i> */
+ volatile uint32_t dsts;
+ /** Reserved. <i>Offset: 80Ch</i> */
+ uint32_t unused;
+ /** Device IN Endpoint Common Interrupt Mask
+ * Register. <i>Offset: 810h</i> */
+ volatile uint32_t diepmsk;
+ /** Device OUT Endpoint Common Interrupt Mask
+ * Register. <i>Offset: 814h</i> */
+ volatile uint32_t doepmsk;
+ /** Device All Endpoints Interrupt Register. <i>Offset: 818h</i> */
+ volatile uint32_t daint;
+ /** Device All Endpoints Interrupt Mask Register. <i>Offset:
+ * 81Ch</i> */
+ volatile uint32_t daintmsk;
+ /** Device IN Token Queue Read Register-1 (Read Only).
+ * <i>Offset: 820h</i> */
+ volatile uint32_t dtknqr1;
+ /** Device IN Token Queue Read Register-2 (Read Only).
+ * <i>Offset: 824h</i> */
+ volatile uint32_t dtknqr2;
+ /** Device VBUS discharge Register. <i>Offset: 828h</i> */
+ volatile uint32_t dvbusdis;
+ /** Device VBUS Pulse Register. <i>Offset: 82Ch</i> */
+ volatile uint32_t dvbuspulse;
+ /** Device IN Token Queue Read Register-3 (Read Only).
+ * Device Thresholding control register (Read/Write)
+ * <i>Offset: 830h</i> */
+ volatile uint32_t dtknqr3_dthrctl;
+ /** Device IN Token Queue Read Register-4 (Read Only). /
+ * Device IN EPs empty Inr. Mask Register (Read/Write)
+ * <i>Offset: 834h</i> */
+ volatile uint32_t dtknqr4_fifoemptymsk;
+} dwc_otg_device_global_regs_t;
+
+/**
+ * This union represents the bit fields in the Device Configuration
+ * Register. Read the register into the <i>d32</i> member then
+ * set/clear the bits using the <i>b</i>it elements. Write the
+ * <i>d32</i> member to the dcfg register.
+ */
+typedef union dcfg_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned reserved31_23 : 9;
+ /** In Endpoint Mis-match count */
+ unsigned epmscnt : 5;
+ unsigned reserved13_17 : 5;
+ /** Periodic Frame Interval */
+#define DWC_DCFG_FRAME_INTERVAL_80 0
+#define DWC_DCFG_FRAME_INTERVAL_85 1
+#define DWC_DCFG_FRAME_INTERVAL_90 2
+#define DWC_DCFG_FRAME_INTERVAL_95 3
+ unsigned perfrint : 2;
+ /** Device Addresses */
+ unsigned devaddr : 7;
+ unsigned reserved3 : 1;
+ /** Non Zero Length Status OUT Handshake */
+#define DWC_DCFG_SEND_STALL 1
+ unsigned nzstsouthshk : 1;
+ /** Device Speed */
+ unsigned devspd : 2;
+ } b;
+} dcfg_data_t;
+
+/**
+ * This union represents the bit fields in the Device Control
+ * Register. Read the register into the <i>d32</i> member then
+ * set/clear the bits using the <i>b</i>it elements.
+ */
+typedef union dctl_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned reserved : 20;
+ /** Power-On Programming Done */
+ unsigned pwronprgdone : 1;
+ /** Clear Global OUT NAK */
+ unsigned cgoutnak : 1;
+ /** Set Global OUT NAK */
+ unsigned sgoutnak : 1;
+ /** Clear Global Non-Periodic IN NAK */
+ unsigned cgnpinnak : 1;
+ /** Set Global Non-Periodic IN NAK */
+ unsigned sgnpinnak : 1;
+ /** Test Control */
+ unsigned tstctl : 3;
+ /** Global OUT NAK Status */
+ unsigned goutnaksts : 1;
+ /** Global Non-Periodic IN NAK Status */
+ unsigned gnpinnaksts : 1;
+ /** Soft Disconnect */
+ unsigned sftdiscon : 1;
+ /** Remote Wakeup */
+ unsigned rmtwkupsig : 1;
+ } b;
+} dctl_data_t;
+
+/**
+ * This union represents the bit fields in the Device Status
+ * Register. Read the register into the <i>d32</i> member then
+ * set/clear the bits using the <i>b</i>it elements.
+ */
+typedef union dsts_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned reserved22_31 : 10;
+ /** Frame or Microframe Number of the received SOF */
+ unsigned soffn : 14;
+ unsigned reserved4_7: 4;
+ /** Erratic Error */
+ unsigned errticerr : 1;
+ /** Enumerated Speed */
+#define DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ 0
+#define DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ 1
+#define DWC_DSTS_ENUMSPD_LS_PHY_6MHZ 2
+#define DWC_DSTS_ENUMSPD_FS_PHY_48MHZ 3
+ unsigned enumspd : 2;
+ /** Suspend Status */
+ unsigned suspsts : 1;
+ } b;
+} dsts_data_t;
+
+
+/**
+ * This union represents the bit fields in the Device IN EP Interrupt
+ * Register and the Device IN EP Common Mask Register.
+ *
+ * - Read the register into the <i>d32</i> member then set/clear the
+ * bits using the <i>b</i>it elements.
+ */
+typedef union diepint_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned reserved07_31 : 23;
+ unsigned txfifoundrn : 1;
+ /** IN Endpoint HAK Effective mask */
+ unsigned emptyintr : 1;
+ /** IN Endpoint NAK Effective mask */
+ unsigned inepnakeff : 1;
+ /** IN Token Received with EP mismatch mask */
+ unsigned intknepmis : 1;
+ /** IN Token received with TxF Empty mask */
+ unsigned intktxfemp : 1;
+ /** TimeOUT Handshake mask (non-ISOC EPs) */
+ unsigned timeout : 1;
+ /** AHB Error mask */
+ unsigned ahberr : 1;
+ /** Endpoint disable mask */
+ unsigned epdisabled : 1;
+ /** Transfer complete mask */
+ unsigned xfercompl : 1;
+ } b;
+} diepint_data_t;
+/**
+ * This union represents the bit fields in the Device IN EP Common
+ * Interrupt Mask Register.
+ */
+typedef union diepint_data diepmsk_data_t;
+
+/**
+ * This union represents the bit fields in the Device OUT EP Interrupt
+ * Registerand Device OUT EP Common Interrupt Mask Register.
+ *
+ * - Read the register into the <i>d32</i> member then set/clear the
+ * bits using the <i>b</i>it elements.
+ */
+typedef union doepint_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned reserved04_31 : 27;
+ /** OUT Token Received when Endpoint Disabled */
+ unsigned outtknepdis : 1;
+ /** Setup Phase Done (contorl EPs) */
+ unsigned setup : 1;
+ /** AHB Error */
+ unsigned ahberr : 1;
+ /** Endpoint disable */
+ unsigned epdisabled : 1;
+ /** Transfer complete */
+ unsigned xfercompl : 1;
+ } b;
+} doepint_data_t;
+/**
+ * This union represents the bit fields in the Device OUT EP Common
+ * Interrupt Mask Register.
+ */
+typedef union doepint_data doepmsk_data_t;
+
+
+/**
+ * This union represents the bit fields in the Device All EP Interrupt
+ * and Mask Registers.
+ * - Read the register into the <i>d32</i> member then set/clear the
+ * bits using the <i>b</i>it elements.
+ */
+typedef union daint_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ /** OUT Endpoint bits */
+ unsigned out : 16;
+ /** IN Endpoint bits */
+ unsigned in : 16;
+ } ep;
+ struct {
+ /** OUT Endpoint bits */
+ unsigned outep15 : 1;
+ unsigned outep14 : 1;
+ unsigned outep13 : 1;
+ unsigned outep12 : 1;
+ unsigned outep11 : 1;
+ unsigned outep10 : 1;
+ unsigned outep9 : 1;
+ unsigned outep8 : 1;
+ unsigned outep7 : 1;
+ unsigned outep6 : 1;
+ unsigned outep5 : 1;
+ unsigned outep4 : 1;
+ unsigned outep3 : 1;
+ unsigned outep2 : 1;
+ unsigned outep1 : 1;
+ unsigned outep0 : 1;
+ /** IN Endpoint bits */
+ unsigned inep15 : 1;
+ unsigned inep14 : 1;
+ unsigned inep13 : 1;
+ unsigned inep12 : 1;
+ unsigned inep11 : 1;
+ unsigned inep10 : 1;
+ unsigned inep9 : 1;
+ unsigned inep8 : 1;
+ unsigned inep7 : 1;
+ unsigned inep6 : 1;
+ unsigned inep5 : 1;
+ unsigned inep4 : 1;
+ unsigned inep3 : 1;
+ unsigned inep2 : 1;
+ unsigned inep1 : 1;
+ unsigned inep0 : 1;
+ } b;
+} daint_data_t;
+
+/**
+ * This union represents the bit fields in the Device IN Token Queue
+ * Read Registers.
+ * - Read the register into the <i>d32</i> member.
+ * - READ-ONLY Register
+ */
+typedef union dtknq1_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ /** EP Numbers of IN Tokens 0 ... 4 */
+ unsigned epnums0_5 : 24;
+ /** write pointer has wrapped. */
+ unsigned wrap_bit : 1;
+ /** Reserved */
+ unsigned reserved05_06 : 2;
+ /** In Token Queue Write Pointer */
+ unsigned intknwptr : 5;
+ }b;
+} dtknq1_data_t;
+
+/**
+ * This union represents Threshold control Register
+ * - Read and write the register into the <i>d32</i> member.
+ * - READ-WRITABLE Register
+ */
+typedef union dthrctl_data //* /*fscz */
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ /** Reserved */
+ unsigned reserved26_31 : 6;
+ /** Rx Thr. Length */
+ unsigned rx_thr_len : 9;
+ /** Rx Thr. Enable */
+ unsigned rx_thr_en : 1;
+ /** Reserved */
+ unsigned reserved11_15 : 5;
+ /** Tx Thr. Length */
+ unsigned tx_thr_len : 9;
+ /** ISO Tx Thr. Enable */
+ unsigned iso_thr_en : 1;
+ /** non ISO Tx Thr. Enable */
+ unsigned non_iso_thr_en : 1;
+
+ }b;
+} dthrctl_data_t;
+
+/**
+ * Device Logical IN Endpoint-Specific Registers. <i>Offsets
+ * 900h-AFCh</i>
+ *
+ * There will be one set of endpoint registers per logical endpoint
+ * implemented.
+ *
+ * <i>These registers are visible only in Device mode and must not be
+ * accessed in Host mode, as the results are unknown.</i>
+ */
+typedef struct dwc_otg_dev_in_ep_regs
+{
+ /** Device IN Endpoint Control Register. <i>Offset:900h +
+ * (ep_num * 20h) + 00h</i> */
+ volatile uint32_t diepctl;
+ /** Reserved. <i>Offset:900h + (ep_num * 20h) + 04h</i> */
+ uint32_t reserved04;
+ /** Device IN Endpoint Interrupt Register. <i>Offset:900h +
+ * (ep_num * 20h) + 08h</i> */
+ volatile uint32_t diepint;
+ /** Reserved. <i>Offset:900h + (ep_num * 20h) + 0Ch</i> */
+ uint32_t reserved0C;
+ /** Device IN Endpoint Transfer Size
+ * Register. <i>Offset:900h + (ep_num * 20h) + 10h</i> */
+ volatile uint32_t dieptsiz;
+ /** Device IN Endpoint DMA Address Register. <i>Offset:900h +
+ * (ep_num * 20h) + 14h</i> */
+ volatile uint32_t diepdma;
+ /** Reserved. <i>Offset:900h + (ep_num * 20h) + 18h - 900h +
+ * (ep_num * 20h) + 1Ch</i>*/
+ volatile uint32_t dtxfsts;
+ /** Reserved. <i>Offset:900h + (ep_num * 20h) + 1Ch - 900h +
+ * (ep_num * 20h) + 1Ch</i>*/
+ uint32_t reserved18;
+} dwc_otg_dev_in_ep_regs_t;
+
+/**
+ * Device Logical OUT Endpoint-Specific Registers. <i>Offsets:
+ * B00h-CFCh</i>
+ *
+ * There will be one set of endpoint registers per logical endpoint
+ * implemented.
+ *
+ * <i>These registers are visible only in Device mode and must not be
+ * accessed in Host mode, as the results are unknown.</i>
+ */
+typedef struct dwc_otg_dev_out_ep_regs
+{
+ /** Device OUT Endpoint Control Register. <i>Offset:B00h +
+ * (ep_num * 20h) + 00h</i> */
+ volatile uint32_t doepctl;
+ /** Device OUT Endpoint Frame number Register. <i>Offset:
+ * B00h + (ep_num * 20h) + 04h</i> */
+ volatile uint32_t doepfn;
+ /** Device OUT Endpoint Interrupt Register. <i>Offset:B00h +
+ * (ep_num * 20h) + 08h</i> */
+ volatile uint32_t doepint;
+ /** Reserved. <i>Offset:B00h + (ep_num * 20h) + 0Ch</i> */
+ uint32_t reserved0C;
+ /** Device OUT Endpoint Transfer Size Register. <i>Offset:
+ * B00h + (ep_num * 20h) + 10h</i> */
+ volatile uint32_t doeptsiz;
+ /** Device OUT Endpoint DMA Address Register. <i>Offset:B00h
+ * + (ep_num * 20h) + 14h</i> */
+ volatile uint32_t doepdma;
+ /** Reserved. <i>Offset:B00h + (ep_num * 20h) + 18h - B00h +
+ * (ep_num * 20h) + 1Ch</i> */
+ uint32_t unused[2];
+} dwc_otg_dev_out_ep_regs_t;
+
+/**
+ * This union represents the bit fields in the Device EP Control
+ * Register. Read the register into the <i>d32</i> member then
+ * set/clear the bits using the <i>b</i>it elements.
+ */
+typedef union depctl_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ /** Endpoint Enable */
+ unsigned epena : 1;
+ /** Endpoint Disable */
+ unsigned epdis : 1;
+ /** Set DATA1 PID (INTR/Bulk IN and OUT endpoints)
+ * Writing to this field sets the Endpoint DPID (DPID)
+ * field in this register to DATA1 Set Odd
+ * (micro)frame (SetOddFr) (ISO IN and OUT Endpoints)
+ * Writing to this field sets the Even/Odd
+ * (micro)frame (EO_FrNum) field to odd (micro) frame.
+ */
+ unsigned setd1pid : 1;
+ /** Set DATA0 PID (INTR/Bulk IN and OUT endpoints)
+ * Writing to this field sets the Endpoint DPID (DPID)
+ * field in this register to DATA0. Set Even
+ * (micro)frame (SetEvenFr) (ISO IN and OUT Endpoints)
+ * Writing to this field sets the Even/Odd
+ * (micro)frame (EO_FrNum) field to even (micro)
+ * frame.
+ */
+ unsigned setd0pid : 1;
+ /** Set NAK */
+ unsigned snak : 1;
+ /** Clear NAK */
+ unsigned cnak : 1;
+ /** Tx Fifo Number
+ * IN EPn/IN EP0
+ * OUT EPn/OUT EP0 - reserved */
+ unsigned txfnum : 4;
+ /** Stall Handshake */
+ unsigned stall : 1;
+ /** Snoop Mode
+ * OUT EPn/OUT EP0
+ * IN EPn/IN EP0 - reserved */
+ unsigned snp : 1;
+ /** Endpoint Type
+ * 2'b00: Control
+ * 2'b01: Isochronous
+ * 2'b10: Bulk
+ * 2'b11: Interrupt */
+ unsigned eptype : 2;
+ /** NAK Status */
+ unsigned naksts : 1;
+ /** Endpoint DPID (INTR/Bulk IN and OUT endpoints)
+ * This field contains the PID of the packet going to
+ * be received or transmitted on this endpoint. The
+ * application should program the PID of the first
+ * packet going to be received or transmitted on this
+ * endpoint , after the endpoint is
+ * activated. Application use the SetD1PID and
+ * SetD0PID fields of this register to program either
+ * D0 or D1 PID.
+ *
+ * The encoding for this field is
+ * - 0: D0
+ * - 1: D1
+ */
+ unsigned dpid : 1;
+ /** USB Active Endpoint */
+ unsigned usbactep : 1;
+ /** Next Endpoint
+ * IN EPn/IN EP0
+ * OUT EPn/OUT EP0 - reserved */
+ unsigned nextep : 4;
+ /** Maximum Packet Size
+ * IN/OUT EPn
+ * IN/OUT EP0 - 2 bits
+ * 2'b00: 64 Bytes
+ * 2'b01: 32
+ * 2'b10: 16
+ * 2'b11: 8 */
+#define DWC_DEP0CTL_MPS_64 0
+#define DWC_DEP0CTL_MPS_32 1
+#define DWC_DEP0CTL_MPS_16 2
+#define DWC_DEP0CTL_MPS_8 3
+ unsigned mps : 11;
+ } b;
+} depctl_data_t;
+
+/**
+ * This union represents the bit fields in the Device EP Transfer
+ * Size Register. Read the register into the <i>d32</i> member then
+ * set/clear the bits using the <i>b</i>it elements.
+ */
+typedef union deptsiz_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned reserved : 1;
+ /** Multi Count - Periodic IN endpoints */
+ unsigned mc : 2;
+ /** Packet Count */
+ unsigned pktcnt : 10;
+ /** Transfer size */
+ unsigned xfersize : 19;
+ } b;
+} deptsiz_data_t;
+
+/**
+ * This union represents the bit fields in the Device EP 0 Transfer
+ * Size Register. Read the register into the <i>d32</i> member then
+ * set/clear the bits using the <i>b</i>it elements.
+ */
+typedef union deptsiz0_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned reserved31 : 1;
+ /**Setup Packet Count (DOEPTSIZ0 Only) */
+ unsigned supcnt : 2;
+ /** Reserved */
+ unsigned reserved28_20 : 9;
+ /** Packet Count */
+ unsigned pktcnt : 1;
+ /** Reserved */
+ unsigned reserved18_7 : 12;
+ /** Transfer size */
+ unsigned xfersize : 7;
+ } b;
+} deptsiz0_data_t;
+
+
+/** Maximum number of Periodic FIFOs */
+#define MAX_PERIO_FIFOS 15
+/** Maximum number of TX FIFOs */
+#define MAX_TX_FIFOS 15
+/** Maximum number of Endpoints/HostChannels */
+#define MAX_EPS_CHANNELS 16
+//#define MAX_EPS_CHANNELS 4
+
+/**
+ * The dwc_otg_dev_if structure contains information needed to manage
+ * the DWC_otg controller acting in device mode. It represents the
+ * programming view of the device-specific aspects of the controller.
+ */
+typedef struct dwc_otg_dev_if {
+ /** Pointer to device Global registers.
+ * Device Global Registers starting at offset 800h
+ */
+ dwc_otg_device_global_regs_t *dev_global_regs;
+#define DWC_DEV_GLOBAL_REG_OFFSET 0x800
+
+ /**
+ * Device Logical IN Endpoint-Specific Registers 900h-AFCh
+ */
+ dwc_otg_dev_in_ep_regs_t *in_ep_regs[MAX_EPS_CHANNELS];
+#define DWC_DEV_IN_EP_REG_OFFSET 0x900
+#define DWC_EP_REG_OFFSET 0x20
+
+ /** Device Logical OUT Endpoint-Specific Registers B00h-CFCh */
+ dwc_otg_dev_out_ep_regs_t *out_ep_regs[MAX_EPS_CHANNELS];
+#define DWC_DEV_OUT_EP_REG_OFFSET 0xB00
+
+ /* Device configuration information*/
+ uint8_t speed; /**< Device Speed 0: Unknown, 1: LS, 2:FS, 3: HS */
+ //uint8_t num_eps; /**< Number of EPs range: 0-16 (includes EP0) */
+ //uint8_t num_perio_eps; /**< # of Periodic EP range: 0-15 */
+ /*fscz */
+ uint8_t num_in_eps; /**< Number # of Tx EP range: 0-15 exept ep0 */
+ uint8_t num_out_eps; /**< Number # of Rx EP range: 0-15 exept ep 0*/
+
+ /** Size of periodic FIFOs (Bytes) */
+ uint16_t perio_tx_fifo_size[MAX_PERIO_FIFOS];
+
+ /** Size of Tx FIFOs (Bytes) */
+ uint16_t tx_fifo_size[MAX_TX_FIFOS];
+
+ /** Thresholding enable flags and length varaiables **/
+ uint16_t rx_thr_en;
+ uint16_t iso_tx_thr_en;
+ uint16_t non_iso_tx_thr_en;
+
+ uint16_t rx_thr_length;
+ uint16_t tx_thr_length;
+} dwc_otg_dev_if_t;
+
+/**
+ * This union represents the bit fields in the Power and Clock Gating Control
+ * Register. Read the register into the <i>d32</i> member then set/clear the
+ * bits using the <i>b</i>it elements.
+ */
+typedef union pcgcctl_data
+{
+ /** raw register data */
+ uint32_t d32;
+
+ /** register bits */
+ struct {
+ unsigned reserved31_05 : 27;
+ /** PHY Suspended */
+ unsigned physuspended : 1;
+ /** Reset Power Down Modules */
+ unsigned rstpdwnmodule : 1;
+ /** Power Clamp */
+ unsigned pwrclmp : 1;
+ /** Gate Hclk */
+ unsigned gatehclk : 1;
+ /** Stop Pclk */
+ unsigned stoppclk : 1;
+ } b;
+} pcgcctl_data_t;
+
+/////////////////////////////////////////////////
+// Host Mode Register Structures
+//
+/**
+ * The Host Global Registers structure defines the size and relative
+ * field offsets for the Host Mode Global Registers. Host Global
+ * Registers offsets 400h-7FFh.
+*/
+typedef struct dwc_otg_host_global_regs
+{
+ /** Host Configuration Register. <i>Offset: 400h</i> */
+ volatile uint32_t hcfg;
+ /** Host Frame Interval Register. <i>Offset: 404h</i> */
+ volatile uint32_t hfir;
+ /** Host Frame Number / Frame Remaining Register. <i>Offset: 408h</i> */
+ volatile uint32_t hfnum;
+ /** Reserved. <i>Offset: 40Ch</i> */
+ uint32_t reserved40C;
+ /** Host Periodic Transmit FIFO/ Queue Status Register. <i>Offset: 410h</i> */
+ volatile uint32_t hptxsts;
+ /** Host All Channels Interrupt Register. <i>Offset: 414h</i> */
+ volatile uint32_t haint;
+ /** Host All Channels Interrupt Mask Register. <i>Offset: 418h</i> */
+ volatile uint32_t haintmsk;
+} dwc_otg_host_global_regs_t;
+
+/**
+ * This union represents the bit fields in the Host Configuration Register.
+ * Read the register into the <i>d32</i> member then set/clear the bits using
+ * the <i>b</i>it elements. Write the <i>d32</i> member to the hcfg register.
+ */
+typedef union hcfg_data
+{
+ /** raw register data */
+ uint32_t d32;
+
+ /** register bits */
+ struct {
+ /** Reserved */
+ //unsigned reserved31_03 : 29;
+ /** FS/LS Only Support */
+ unsigned fslssupp : 1;
+ /** FS/LS Phy Clock Select */
+#define DWC_HCFG_30_60_MHZ 0
+#define DWC_HCFG_48_MHZ 1
+#define DWC_HCFG_6_MHZ 2
+ unsigned fslspclksel : 2;
+ } b;
+} hcfg_data_t;
+
+/**
+ * This union represents the bit fields in the Host Frame Remaing/Number
+ * Register.
+ */
+typedef union hfir_data
+{
+ /** raw register data */
+ uint32_t d32;
+
+ /** register bits */
+ struct {
+ unsigned reserved : 16;
+ unsigned frint : 16;
+ } b;
+} hfir_data_t;
+
+/**
+ * This union represents the bit fields in the Host Frame Remaing/Number
+ * Register.
+ */
+typedef union hfnum_data
+{
+ /** raw register data */
+ uint32_t d32;
+
+ /** register bits */
+ struct {
+ unsigned frrem : 16;
+#define DWC_HFNUM_MAX_FRNUM 0x3FFF
+ unsigned frnum : 16;
+ } b;
+} hfnum_data_t;
+
+typedef union hptxsts_data
+{
+ /** raw register data */
+ uint32_t d32;
+
+ /** register bits */
+ struct {
+ /** Top of the Periodic Transmit Request Queue
+ * - bit 24 - Terminate (last entry for the selected channel)
+ * - bits 26:25 - Token Type
+ * - 2'b00 - Zero length
+ * - 2'b01 - Ping
+ * - 2'b10 - Disable
+ * - bits 30:27 - Channel Number
+ * - bit 31 - Odd/even microframe
+ */
+ unsigned ptxqtop_odd : 1;
+ unsigned ptxqtop_chnum : 4;
+ unsigned ptxqtop_token : 2;
+ unsigned ptxqtop_terminate : 1;
+ unsigned ptxqspcavail : 8;
+ unsigned ptxfspcavail : 16;
+ } b;
+} hptxsts_data_t;
+
+/**
+ * This union represents the bit fields in the Host Port Control and Status
+ * Register. Read the register into the <i>d32</i> member then set/clear the
+ * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the
+ * hprt0 register.
+ */
+typedef union hprt0_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned reserved19_31 : 13;
+#define DWC_HPRT0_PRTSPD_HIGH_SPEED 0
+#define DWC_HPRT0_PRTSPD_FULL_SPEED 1
+#define DWC_HPRT0_PRTSPD_LOW_SPEED 2
+ unsigned prtspd : 2;
+ unsigned prttstctl : 4;
+ unsigned prtpwr : 1;
+ unsigned prtlnsts : 2;
+ unsigned reserved9 : 1;
+ unsigned prtrst : 1;
+ unsigned prtsusp : 1;
+ unsigned prtres : 1;
+ unsigned prtovrcurrchng : 1;
+ unsigned prtovrcurract : 1;
+ unsigned prtenchng : 1;
+ unsigned prtena : 1;
+ unsigned prtconndet : 1;
+ unsigned prtconnsts : 1;
+ } b;
+} hprt0_data_t;
+
+/**
+ * This union represents the bit fields in the Host All Interrupt
+ * Register.
+ */
+typedef union haint_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned reserved : 16;
+ unsigned ch15 : 1;
+ unsigned ch14 : 1;
+ unsigned ch13 : 1;
+ unsigned ch12 : 1;
+ unsigned ch11 : 1;
+ unsigned ch10 : 1;
+ unsigned ch9 : 1;
+ unsigned ch8 : 1;
+ unsigned ch7 : 1;
+ unsigned ch6 : 1;
+ unsigned ch5 : 1;
+ unsigned ch4 : 1;
+ unsigned ch3 : 1;
+ unsigned ch2 : 1;
+ unsigned ch1 : 1;
+ unsigned ch0 : 1;
+ } b;
+ struct {
+ unsigned reserved : 16;
+ unsigned chint : 16;
+ } b2;
+} haint_data_t;
+
+/**
+ * This union represents the bit fields in the Host All Interrupt
+ * Register.
+ */
+typedef union haintmsk_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ unsigned reserved : 16;
+ unsigned ch15 : 1;
+ unsigned ch14 : 1;
+ unsigned ch13 : 1;
+ unsigned ch12 : 1;
+ unsigned ch11 : 1;
+ unsigned ch10 : 1;
+ unsigned ch9 : 1;
+ unsigned ch8 : 1;
+ unsigned ch7 : 1;
+ unsigned ch6 : 1;
+ unsigned ch5 : 1;
+ unsigned ch4 : 1;
+ unsigned ch3 : 1;
+ unsigned ch2 : 1;
+ unsigned ch1 : 1;
+ unsigned ch0 : 1;
+ } b;
+ struct {
+ unsigned reserved : 16;
+ unsigned chint : 16;
+ } b2;
+} haintmsk_data_t;
+
+/**
+ * Host Channel Specific Registers. <i>500h-5FCh</i>
+ */
+typedef struct dwc_otg_hc_regs
+{
+ /** Host Channel 0 Characteristic Register. <i>Offset: 500h + (chan_num * 20h) + 00h</i> */
+ volatile uint32_t hcchar;
+ /** Host Channel 0 Split Control Register. <i>Offset: 500h + (chan_num * 20h) + 04h</i> */
+ volatile uint32_t hcsplt;
+ /** Host Channel 0 Interrupt Register. <i>Offset: 500h + (chan_num * 20h) + 08h</i> */
+ volatile uint32_t hcint;
+ /** Host Channel 0 Interrupt Mask Register. <i>Offset: 500h + (chan_num * 20h) + 0Ch</i> */
+ volatile uint32_t hcintmsk;
+ /** Host Channel 0 Transfer Size Register. <i>Offset: 500h + (chan_num * 20h) + 10h</i> */
+ volatile uint32_t hctsiz;
+ /** Host Channel 0 DMA Address Register. <i>Offset: 500h + (chan_num * 20h) + 14h</i> */
+ volatile uint32_t hcdma;
+ /** Reserved. <i>Offset: 500h + (chan_num * 20h) + 18h - 500h + (chan_num * 20h) + 1Ch</i> */
+ uint32_t reserved[2];
+} dwc_otg_hc_regs_t;
+
+/**
+ * This union represents the bit fields in the Host Channel Characteristics
+ * Register. Read the register into the <i>d32</i> member then set/clear the
+ * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the
+ * hcchar register.
+ */
+typedef union hcchar_data
+{
+ /** raw register data */
+ uint32_t d32;
+
+ /** register bits */
+ struct {
+ /** Channel enable */
+ unsigned chen : 1;
+ /** Channel disable */
+ unsigned chdis : 1;
+ /**
+ * Frame to transmit periodic transaction.
+ * 0: even, 1: odd
+ */
+ unsigned oddfrm : 1;
+ /** Device address */
+ unsigned devaddr : 7;
+ /** Packets per frame for periodic transfers. 0 is reserved. */
+ unsigned multicnt : 2;
+ /** 0: Control, 1: Isoc, 2: Bulk, 3: Intr */
+ unsigned eptype : 2;
+ /** 0: Full/high speed device, 1: Low speed device */
+ unsigned lspddev : 1;
+ unsigned reserved : 1;
+ /** 0: OUT, 1: IN */
+ unsigned epdir : 1;
+ /** Endpoint number */
+ unsigned epnum : 4;
+ /** Maximum packet size in bytes */
+ unsigned mps : 11;
+ } b;
+} hcchar_data_t;
+
+typedef union hcsplt_data
+{
+ /** raw register data */
+ uint32_t d32;
+
+ /** register bits */
+ struct {
+ /** Split Enble */
+ unsigned spltena : 1;
+ /** Reserved */
+ unsigned reserved : 14;
+ /** Do Complete Split */
+ unsigned compsplt : 1;
+ /** Transaction Position */
+#define DWC_HCSPLIT_XACTPOS_MID 0
+#define DWC_HCSPLIT_XACTPOS_END 1
+#define DWC_HCSPLIT_XACTPOS_BEGIN 2
+#define DWC_HCSPLIT_XACTPOS_ALL 3
+ unsigned xactpos : 2;
+ /** Hub Address */
+ unsigned hubaddr : 7;
+ /** Port Address */
+ unsigned prtaddr : 7;
+ } b;
+} hcsplt_data_t;
+
+
+/**
+ * This union represents the bit fields in the Host All Interrupt
+ * Register.
+ */
+typedef union hcint_data
+{
+ /** raw register data */
+ uint32_t d32;
+ /** register bits */
+ struct {
+ /** Reserved */
+ unsigned reserved : 21;
+ /** Data Toggle Error */
+ unsigned datatglerr : 1;
+ /** Frame Overrun */
+ unsigned frmovrun : 1;
+ /** Babble Error */
+ unsigned bblerr : 1;
+ /** Transaction Err */
+ unsigned xacterr : 1;
+ /** NYET Response Received */
+ unsigned nyet : 1;
+ /** ACK Response Received */
+ unsigned ack : 1;
+ /** NAK Response Received */
+ unsigned nak : 1;
+ /** STALL Response Received */
+ unsigned stall : 1;
+ /** AHB Error */
+ unsigned ahberr : 1;
+ /** Channel Halted */
+ unsigned chhltd : 1;
+ /** Transfer Complete */
+ unsigned xfercomp : 1;
+ } b;
+} hcint_data_t;
+
+/**
+ * This union represents the bit fields in the Host Channel Transfer Size
+ * Register. Read the register into the <i>d32</i> member then set/clear the
+ * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the
+ * hcchar register.
+ */
+typedef union hctsiz_data
+{
+ /** raw register data */
+ uint32_t d32;
+
+ /** register bits */
+ struct {
+ /** Do PING protocol when 1 */
+ unsigned dopng : 1;
+ /**
+ * Packet ID for next data packet
+ * 0: DATA0
+ * 1: DATA2
+ * 2: DATA1
+ * 3: MDATA (non-Control), SETUP (Control)
+ */
+#define DWC_HCTSIZ_DATA0 0
+#define DWC_HCTSIZ_DATA1 2
+#define DWC_HCTSIZ_DATA2 1
+#define DWC_HCTSIZ_MDATA 3
+#define DWC_HCTSIZ_SETUP 3
+ unsigned pid : 2;
+ /** Data packets to transfer */
+ unsigned pktcnt : 10;
+ /** Total transfer size in bytes */
+ unsigned xfersize : 19;
+ } b;
+} hctsiz_data_t;
+
+/**
+ * This union represents the bit fields in the Host Channel Interrupt Mask
+ * Register. Read the register into the <i>d32</i> member then set/clear the
+ * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the
+ * hcintmsk register.
+ */
+typedef union hcintmsk_data
+{
+ /** raw register data */
+ uint32_t d32;
+
+ /** register bits */
+ struct {
+ unsigned reserved : 21;
+ unsigned datatglerr : 1;
+ unsigned frmovrun : 1;
+ unsigned bblerr : 1;
+ unsigned xacterr : 1;
+ unsigned nyet : 1;
+ unsigned ack : 1;
+ unsigned nak : 1;
+ unsigned stall : 1;
+ unsigned ahberr : 1;
+ unsigned chhltd : 1;
+ unsigned xfercompl : 1;
+ } b;
+} hcintmsk_data_t;
+
+/** OTG Host Interface Structure.
+ *
+ * The OTG Host Interface Structure structure contains information
+ * needed to manage the DWC_otg controller acting in host mode. It
+ * represents the programming view of the host-specific aspects of the
+ * controller.
+ */
+typedef struct dwc_otg_host_if {
+ /** Host Global Registers starting at offset 400h.*/
+ dwc_otg_host_global_regs_t *host_global_regs;
+#define DWC_OTG_HOST_GLOBAL_REG_OFFSET 0x400
+
+ /** Host Port 0 Control and Status Register */
+ volatile uint32_t *hprt0;
+#define DWC_OTG_HOST_PORT_REGS_OFFSET 0x440
+
+
+ /** Host Channel Specific Registers at offsets 500h-5FCh. */
+ dwc_otg_hc_regs_t *hc_regs[MAX_EPS_CHANNELS];
+#define DWC_OTG_HOST_CHAN_REGS_OFFSET 0x500
+#define DWC_OTG_CHAN_REGS_OFFSET 0x20
+
+
+ /* Host configuration information */
+ /** Number of Host Channels (range: 1-16) */
+ uint8_t num_host_channels;
+ /** Periodic EPs supported (0: no, 1: yes) */
+ uint8_t perio_eps_supported;
+ /** Periodic Tx FIFO Size (Only 1 host periodic Tx FIFO) */
+ uint16_t perio_tx_fifo_size;
+
+} dwc_otg_host_if_t;
+
+#endif
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