openwrt-owl/target/linux/omap24xx/patches-3.1/400-bluetooth-hci_h4p.patch

---
 drivers/bluetooth/Kconfig           |   10 
 drivers/bluetooth/Makefile          |    1 
 drivers/bluetooth/hci_h4p/Makefile  |    7 
 drivers/bluetooth/hci_h4p/core.c    | 1043 ++++++++++++++++++++++++++++++++++++
 drivers/bluetooth/hci_h4p/fw-csr.c  |  149 +++++
 drivers/bluetooth/hci_h4p/fw-ti.c   |   90 +++
 drivers/bluetooth/hci_h4p/fw.c      |  155 +++++
 drivers/bluetooth/hci_h4p/hci_h4p.h |  183 ++++++
 drivers/bluetooth/hci_h4p/sysfs.c   |   84 ++
 drivers/bluetooth/hci_h4p/uart.c    |  169 +++++
 10 files changed, 1891 insertions(+)

--- /dev/null
+++ b/drivers/bluetooth/hci_h4p/core.c
@@ -0,0 +1,1043 @@
+/*
+ * This file is part of hci_h4p bluetooth driver
+ *
+ * Copyright (C) 2005, 2006 Nokia Corporation.
+ *
+ * Contact: Ville Tervo <ville.tervo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/serial_reg.h>
+#include <linux/skbuff.h>
+#include <linux/timer.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/gpio.h>
+
+#include <mach/hardware.h>
+#include <mach/board.h>
+#include <mach/irqs.h>
+#include <plat/serial.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/hci.h>
+
+#include "hci_h4p.h"
+
+#define PM_TIMEOUT 200
+
+struct omap_bluetooth_config {
+	u8    chip_type;
+	u8    bt_wakeup_gpio;
+	u8    host_wakeup_gpio;
+	u8    reset_gpio;
+	u8    bt_uart;
+	u8    bd_addr[6];
+	u8    bt_sysclk;
+};
+
+/* This should be used in function that cannot release clocks */
+static void hci_h4p_set_clk(struct hci_h4p_info *info, int *clock, int enable)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&info->clocks_lock, flags);
+	if (enable && !*clock) {
+		NBT_DBG_POWER("Enabling %p\n", clock);
+		clk_enable(info->uart_fclk);
+#ifdef CONFIG_ARCH_OMAP2
+		if (cpu_is_omap24xx()) {
+			clk_enable(info->uart_iclk);
+			//omap2_block_sleep();
+		}
+#endif
+	}
+	if (!enable && *clock) {
+		NBT_DBG_POWER("Disabling %p\n", clock);
+		clk_disable(info->uart_fclk);
+#ifdef CONFIG_ARCH_OMAP2
+		if (cpu_is_omap24xx()) {
+			clk_disable(info->uart_iclk);
+			//omap2_allow_sleep();
+		}
+#endif
+	}
+
+	*clock = enable;
+	spin_unlock_irqrestore(&info->clocks_lock, flags);
+}
+
+/* Power management functions */
+static void hci_h4p_disable_tx(struct hci_h4p_info *info)
+{
+	NBT_DBG_POWER("\n");
+
+	if (!info->pm_enabled)
+		return;
+
+	mod_timer(&info->tx_pm_timer, jiffies + msecs_to_jiffies(PM_TIMEOUT));
+}
+
+static void hci_h4p_enable_tx(struct hci_h4p_info *info)
+{
+	NBT_DBG_POWER("\n");
+
+	if (!info->pm_enabled)
+		return;
+
+	del_timer_sync(&info->tx_pm_timer);
+	if (info->tx_pm_enabled) {
+		info->tx_pm_enabled = 0;
+		hci_h4p_set_clk(info, &info->tx_clocks_en, 1);
+		gpio_set_value(info->bt_wakeup_gpio, 1);
+	}
+}
+
+static void hci_h4p_tx_pm_timer(unsigned long data)
+{
+	struct hci_h4p_info *info;
+
+	NBT_DBG_POWER("\n");
+
+	info = (struct hci_h4p_info *)data;
+
+	if (hci_h4p_inb(info, UART_LSR) & UART_LSR_TEMT) {
+		gpio_set_value(info->bt_wakeup_gpio, 0);
+		hci_h4p_set_clk(info, &info->tx_clocks_en, 0);
+		info->tx_pm_enabled = 1;
+	}
+	else {
+		mod_timer(&info->tx_pm_timer, jiffies + msecs_to_jiffies(PM_TIMEOUT));
+	}
+}
+
+static void hci_h4p_disable_rx(struct hci_h4p_info *info)
+{
+	if (!info->pm_enabled)
+		return;
+
+	mod_timer(&info->rx_pm_timer, jiffies + msecs_to_jiffies(PM_TIMEOUT));
+}
+
+static void hci_h4p_enable_rx(struct hci_h4p_info *info)
+{
+	unsigned long flags;
+
+	if (!info->pm_enabled)
+		return;
+
+	del_timer_sync(&info->rx_pm_timer);
+	spin_lock_irqsave(&info->lock, flags);
+	if (info->rx_pm_enabled) {
+		hci_h4p_set_clk(info, &info->rx_clocks_en, 1);
+		hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) | UART_IER_RDI);
+		__hci_h4p_set_auto_ctsrts(info, 1, UART_EFR_RTS);
+		info->rx_pm_enabled = 0;
+	}
+	spin_unlock_irqrestore(&info->lock, flags);
+}
+
+static void hci_h4p_rx_pm_timer(unsigned long data)
+{
+	unsigned long flags;
+	struct hci_h4p_info *info = (struct hci_h4p_info *)data;
+
+	spin_lock_irqsave(&info->lock, flags);
+	if (!(hci_h4p_inb(info, UART_LSR) & UART_LSR_DR)) {
+		__hci_h4p_set_auto_ctsrts(info, 0, UART_EFR_RTS);
+		hci_h4p_set_rts(info, 0);
+		hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) & ~UART_IER_RDI);
+		hci_h4p_set_clk(info, &info->rx_clocks_en, 0);
+		info->rx_pm_enabled = 1;
+	}
+	else {
+		mod_timer(&info->rx_pm_timer, jiffies + msecs_to_jiffies(PM_TIMEOUT));
+	}
+	spin_unlock_irqrestore(&info->lock, flags);
+}
+
+/* Negotiation functions */
+int hci_h4p_send_alive_packet(struct hci_h4p_info *info)
+{
+	NBT_DBG("Sending alive packet\n");
+
+	if (!info->alive_cmd_skb)
+		return -EINVAL;
+
+	/* Keep reference to buffer so we can reuse it */
+	info->alive_cmd_skb = skb_get(info->alive_cmd_skb);
+
+	skb_queue_tail(&info->txq, info->alive_cmd_skb);
+	tasklet_schedule(&info->tx_task);
+
+	NBT_DBG("Alive packet sent\n");
+
+	return 0;
+}
+
+static void hci_h4p_alive_packet(struct hci_h4p_info *info, struct sk_buff *skb)
+{
+	NBT_DBG("Received alive packet\n");
+	if (skb->data[1] == 0xCC) {
+		complete(&info->init_completion);
+	}
+
+	kfree_skb(skb);
+}
+
+static int hci_h4p_send_negotiation(struct hci_h4p_info *info, struct sk_buff *skb)
+{
+	NBT_DBG("Sending negotiation..\n");
+
+	hci_h4p_change_speed(info, INIT_SPEED);
+
+	info->init_error = 0;
+	init_completion(&info->init_completion);
+	skb_queue_tail(&info->txq, skb);
+	tasklet_schedule(&info->tx_task);
+
+	if (!wait_for_completion_interruptible_timeout(&info->init_completion,
+				msecs_to_jiffies(1000)))
+		return -ETIMEDOUT;
+
+	NBT_DBG("Negotiation sent\n");
+	return info->init_error;
+}
+
+static void hci_h4p_negotiation_packet(struct hci_h4p_info *info,
+				       struct sk_buff *skb)
+{
+	int err = 0;
+
+	if (skb->data[1] == 0x20) {
+		/* Change to operational settings */
+		hci_h4p_set_rts(info, 0);
+
+		err = hci_h4p_wait_for_cts(info, 0, 100);
+		if (err < 0)
+			goto neg_ret;
+
+		hci_h4p_change_speed(info, MAX_BAUD_RATE);
+
+		err = hci_h4p_wait_for_cts(info, 1, 100);
+		if (err < 0)
+			goto neg_ret;
+
+		hci_h4p_set_auto_ctsrts(info, 1, UART_EFR_CTS | UART_EFR_RTS);
+
+		err = hci_h4p_send_alive_packet(info);
+		if (err < 0)
+			goto neg_ret;
+	} else {
+		dev_err(info->dev, "Could not negotiate hci_h4p settings\n");
+		err = -EINVAL;
+		goto neg_ret;
+	}
+
+	kfree_skb(skb);
+	return;
+
+neg_ret:
+	info->init_error = err;
+	complete(&info->init_completion);
+	kfree_skb(skb);
+}
+
+/* H4 packet handling functions */
+static int hci_h4p_get_hdr_len(struct hci_h4p_info *info, u8 pkt_type)
+{
+	long retval;
+
+	switch (pkt_type) {
+	case H4_EVT_PKT:
+		retval = HCI_EVENT_HDR_SIZE;
+		break;
+	case H4_ACL_PKT:
+		retval = HCI_ACL_HDR_SIZE;
+		break;
+	case H4_SCO_PKT:
+		retval = HCI_SCO_HDR_SIZE;
+		break;
+	case H4_NEG_PKT:
+		retval = 11;
+		break;
+	case H4_ALIVE_PKT:
+		retval = 3;
+		break;
+	default:
+		dev_err(info->dev, "Unknown H4 packet type 0x%.2x\n", pkt_type);
+		retval = -1;
+		break;
+	}
+
+	return retval;
+}
+
+static unsigned int hci_h4p_get_data_len(struct hci_h4p_info *info,
+					 struct sk_buff *skb)
+{
+	long retval = -1;
+	struct hci_event_hdr *evt_hdr;
+	struct hci_acl_hdr *acl_hdr;
+	struct hci_sco_hdr *sco_hdr;
+
+	switch (bt_cb(skb)->pkt_type) {
+	case H4_EVT_PKT:
+		evt_hdr = (struct hci_event_hdr *)skb->data;
+		retval = evt_hdr->plen;
+		break;
+	case H4_ACL_PKT:
+		acl_hdr = (struct hci_acl_hdr *)skb->data;
+		retval = le16_to_cpu(acl_hdr->dlen);
+		break;
+	case H4_SCO_PKT:
+		sco_hdr = (struct hci_sco_hdr *)skb->data;
+		retval = sco_hdr->dlen;
+		break;
+	case H4_NEG_PKT:
+		retval = 0;
+		break;
+	case H4_ALIVE_PKT:
+		retval = 0;
+		break;
+	}
+
+	return retval;
+}
+
+static inline void hci_h4p_recv_frame(struct hci_h4p_info *info,
+				      struct sk_buff *skb)
+{
+
+	if (unlikely(!test_bit(HCI_RUNNING, &info->hdev->flags))) {
+		NBT_DBG("fw_event\n");
+		hci_h4p_parse_fw_event(info, skb);
+	} else {
+		hci_recv_frame(skb);
+		NBT_DBG("Frame sent to upper layer\n");
+	}
+}
+
+static void hci_h4p_rx_tasklet(unsigned long data)
+{
+	u8 byte;
+	unsigned long flags;
+	struct hci_h4p_info *info = (struct hci_h4p_info *)data;
+
+	NBT_DBG("tasklet woke up\n");
+	NBT_DBG_TRANSFER("rx_tasklet woke up\ndata ");
+
+	while (hci_h4p_inb(info, UART_LSR) & UART_LSR_DR) {
+		byte = hci_h4p_inb(info, UART_RX);
+		if (info->garbage_bytes) {
+			info->garbage_bytes--;
+			continue;
+		}
+		if (info->rx_skb == NULL) {
+			info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC | GFP_DMA);
+			if (!info->rx_skb) {
+				dev_err(info->dev, "Can't allocate memory for new packet\n");
+				goto finish_task;
+			}
+			info->rx_state = WAIT_FOR_PKT_TYPE;
+			info->rx_skb->dev = (void *)info->hdev;
+		}
+		info->hdev->stat.byte_rx++;
+		NBT_DBG_TRANSFER_NF("0x%.2x  ", byte);
+		switch (info->rx_state) {
+		case WAIT_FOR_PKT_TYPE:
+			bt_cb(info->rx_skb)->pkt_type = byte;
+			info->rx_count = hci_h4p_get_hdr_len(info, byte);
+			if (info->rx_count < 0) {
+				info->hdev->stat.err_rx++;
+				kfree_skb(info->rx_skb);
+				info->rx_skb = NULL;
+			} else {
+				info->rx_state = WAIT_FOR_HEADER;
+			}
+			break;
+		case WAIT_FOR_HEADER:
+			info->rx_count--;
+			*skb_put(info->rx_skb, 1) = byte;
+			if (info->rx_count == 0) {
+				info->rx_count = hci_h4p_get_data_len(info, info->rx_skb);
+				if (info->rx_count > skb_tailroom(info->rx_skb)) {
+					dev_err(info->dev, "Frame is %ld bytes too long.\n",
+					       info->rx_count - skb_tailroom(info->rx_skb));
+					kfree_skb(info->rx_skb);
+					info->rx_skb = NULL;
+					info->garbage_bytes = info->rx_count - skb_tailroom(info->rx_skb);
+					break;
+				}
+				info->rx_state = WAIT_FOR_DATA;
+
+				if (bt_cb(info->rx_skb)->pkt_type == H4_NEG_PKT) {
+					hci_h4p_negotiation_packet(info, info->rx_skb);
+					info->rx_skb = NULL;
+					info->rx_state = WAIT_FOR_PKT_TYPE;
+					goto finish_task;
+				}
+				if (bt_cb(info->rx_skb)->pkt_type == H4_ALIVE_PKT) {
+					hci_h4p_alive_packet(info, info->rx_skb);
+					info->rx_skb = NULL;
+					info->rx_state = WAIT_FOR_PKT_TYPE;
+					goto finish_task;
+				}
+			}
+			break;
+		case WAIT_FOR_DATA:
+			info->rx_count--;
+			*skb_put(info->rx_skb, 1) = byte;
+			if (info->rx_count == 0) {
+				/* H4+ devices should allways send word aligned packets */
+				if (!(info->rx_skb->len % 2)) {
+					info->garbage_bytes++;
+				}
+				hci_h4p_recv_frame(info, info->rx_skb);
+				info->rx_skb = NULL;
+			}
+			break;
+		default:
+			WARN_ON(1);
+			break;
+		}
+	}
+
+finish_task:
+	spin_lock_irqsave(&info->lock, flags);
+	hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) | UART_IER_RDI);
+	spin_unlock_irqrestore(&info->lock, flags);
+
+	NBT_DBG_TRANSFER_NF("\n");
+	NBT_DBG("rx_ended\n");
+}
+
+static void hci_h4p_tx_tasklet(unsigned long data)
+{
+	unsigned int sent = 0;
+	unsigned long flags;
+	struct sk_buff *skb;
+	struct hci_h4p_info *info = (struct hci_h4p_info *)data;
+
+	NBT_DBG("tasklet woke up\n");
+	NBT_DBG_TRANSFER("tx_tasklet woke up\n data ");
+
+	skb = skb_dequeue(&info->txq);
+	if (!skb) {
+		/* No data in buffer */
+		NBT_DBG("skb ready\n");
+		hci_h4p_disable_tx(info);
+		return;
+	}
+
+	/* Copy data to tx fifo */
+	while (!(hci_h4p_inb(info, UART_OMAP_SSR) & UART_OMAP_SSR_TXFULL) &&
+	       (sent < skb->len)) {
+		NBT_DBG_TRANSFER_NF("0x%.2x ", skb->data[sent]);
+		hci_h4p_outb(info, UART_TX, skb->data[sent]);
+		sent++;
+	}
+
+	info->hdev->stat.byte_tx += sent;
+	NBT_DBG_TRANSFER_NF("\n");
+	if (skb->len == sent) {
+		kfree_skb(skb);
+	} else {
+		skb_pull(skb, sent);
+		skb_queue_head(&info->txq, skb);
+	}
+
+	spin_lock_irqsave(&info->lock, flags);
+	hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) | UART_IER_THRI);
+	spin_unlock_irqrestore(&info->lock, flags);
+}
+
+static irqreturn_t hci_h4p_interrupt(int irq, void *data)
+{
+	struct hci_h4p_info *info = (struct hci_h4p_info *)data;
+	u8 iir, msr;
+	int ret;
+	unsigned long flags;
+
+	ret = IRQ_NONE;
+
+	iir = hci_h4p_inb(info, UART_IIR);
+	if (iir & UART_IIR_NO_INT) {
+		dev_err(info->dev, "Interrupt but no reason irq 0x%.2x\n", iir);
+		return IRQ_HANDLED;
+	}
+
+	NBT_DBG("In interrupt handler iir 0x%.2x\n", iir);
+
+	iir &= UART_IIR_ID;
+
+	if (iir == UART_IIR_MSI) {
+		msr = hci_h4p_inb(info, UART_MSR);
+		ret = IRQ_HANDLED;
+	}
+	if (iir == UART_IIR_RLSI) {
+		hci_h4p_inb(info, UART_RX);
+		hci_h4p_inb(info, UART_LSR);
+		ret = IRQ_HANDLED;
+	}
+
+	if (iir == UART_IIR_RDI) {
+		spin_lock_irqsave(&info->lock, flags);
+		hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) & ~UART_IER_RDI);
+		spin_unlock_irqrestore(&info->lock, flags);
+		tasklet_schedule(&info->rx_task);
+		ret = IRQ_HANDLED;
+	}
+
+	if (iir == UART_IIR_THRI) {
+		spin_lock_irqsave(&info->lock, flags);
+		hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) & ~UART_IER_THRI);
+		spin_unlock_irqrestore(&info->lock, flags);
+		tasklet_schedule(&info->tx_task);
+		ret = IRQ_HANDLED;
+	}
+
+	return ret;
+}
+
+static irqreturn_t hci_h4p_wakeup_interrupt(int irq, void *dev_inst)
+{
+	struct hci_h4p_info *info = dev_inst;
+	int should_wakeup;
+	struct hci_dev *hdev;
+
+	if (!info->hdev)
+		return IRQ_HANDLED;
+
+	hdev = info->hdev;
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
+		return IRQ_HANDLED;
+
+	should_wakeup = gpio_get_value(info->host_wakeup_gpio);
+	NBT_DBG_POWER("gpio interrupt %d\n", should_wakeup);
+	if (should_wakeup) {
+		hci_h4p_enable_rx(info);
+	} else {
+		hci_h4p_disable_rx(info);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int hci_h4p_reset(struct hci_h4p_info *info)
+{
+	int err;
+
+	hci_h4p_init_uart(info);
+	hci_h4p_set_rts(info, 0);
+
+	gpio_set_value(info->reset_gpio, 0);
+	msleep(100);
+	gpio_set_value(info->bt_wakeup_gpio, 1);
+	gpio_set_value(info->reset_gpio, 1);
+	msleep(100);
+
+	err = hci_h4p_wait_for_cts(info, 1, 10);
+	if (err < 0) {
+		dev_err(info->dev, "No cts from bt chip\n");
+		return err;
+	}
+
+	hci_h4p_set_rts(info, 1);
+
+	return 0;
+}
+
+/* hci callback functions */
+static int hci_h4p_hci_flush(struct hci_dev *hdev)
+{
+	struct hci_h4p_info *info;
+	info = hdev->driver_data;
+
+	skb_queue_purge(&info->txq);
+
+	return 0;
+}
+
+static int hci_h4p_hci_open(struct hci_dev *hdev)
+{
+	struct hci_h4p_info *info;
+	int err;
+	struct sk_buff *neg_cmd_skb;
+	struct sk_buff_head fw_queue;
+
+	info = hdev->driver_data;
+
+	if (test_bit(HCI_RUNNING, &hdev->flags))
+		return 0;
+
+	skb_queue_head_init(&fw_queue);
+	err = hci_h4p_read_fw(info, &fw_queue);
+	if (err < 0) {
+		dev_err(info->dev, "Cannot read firmware\n");
+		return err;
+	}
+	neg_cmd_skb = skb_dequeue(&fw_queue);
+	if (!neg_cmd_skb) {
+		err = -EPROTO;
+		goto err_clean;
+	}
+	info->alive_cmd_skb = skb_dequeue(&fw_queue);
+	if (!info->alive_cmd_skb) {
+		err = -EPROTO;
+		goto err_clean;
+	}
+
+	hci_h4p_set_clk(info, &info->tx_clocks_en, 1);
+	hci_h4p_set_clk(info, &info->rx_clocks_en, 1);
+
+	tasklet_enable(&info->tx_task);
+	tasklet_enable(&info->rx_task);
+	info->rx_state = WAIT_FOR_PKT_TYPE;
+	info->rx_count = 0;
+	info->garbage_bytes = 0;
+	info->rx_skb = NULL;
+	info->pm_enabled = 0;
+	init_completion(&info->fw_completion);
+
+	err = hci_h4p_reset(info);
+	if (err < 0)
+		goto err_clean;
+
+	err = hci_h4p_send_negotiation(info, neg_cmd_skb);
+	neg_cmd_skb = NULL;
+	if (err < 0)
+		goto err_clean;
+
+	err = hci_h4p_send_fw(info, &fw_queue);
+	if (err < 0) {
+		dev_err(info->dev, "Sending firmware failed.\n");
+		goto err_clean;
+	}
+
+	kfree_skb(info->alive_cmd_skb);
+	info->alive_cmd_skb = NULL;
+	info->pm_enabled = 1;
+	info->tx_pm_enabled = 1;
+	info->rx_pm_enabled = 0;
+	set_bit(HCI_RUNNING, &hdev->flags);
+
+	NBT_DBG("hci up and running\n");
+	return 0;
+
+err_clean:
+	hci_h4p_hci_flush(hdev);
+	tasklet_disable(&info->tx_task);
+	tasklet_disable(&info->rx_task);
+	hci_h4p_reset_uart(info);
+	hci_h4p_set_clk(info, &info->tx_clocks_en, 0);
+	hci_h4p_set_clk(info, &info->rx_clocks_en, 0);
+	gpio_set_value(info->reset_gpio, 0);
+	gpio_set_value(info->bt_wakeup_gpio, 0);
+	skb_queue_purge(&fw_queue);
+	kfree_skb(neg_cmd_skb);
+	neg_cmd_skb = NULL;
+	kfree_skb(info->alive_cmd_skb);
+	info->alive_cmd_skb = NULL;
+	kfree_skb(info->rx_skb);
+
+	return err;
+}
+
+static int hci_h4p_hci_close(struct hci_dev *hdev)
+{
+	struct hci_h4p_info *info = hdev->driver_data;
+
+	if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
+		return 0;
+
+	hci_h4p_hci_flush(hdev);
+	del_timer_sync(&info->tx_pm_timer);
+	del_timer_sync(&info->rx_pm_timer);
+	tasklet_disable(&info->tx_task);
+	tasklet_disable(&info->rx_task);
+	hci_h4p_set_clk(info, &info->tx_clocks_en, 1);
+	hci_h4p_set_clk(info, &info->rx_clocks_en, 1);
+	hci_h4p_reset_uart(info);
+	hci_h4p_set_clk(info, &info->tx_clocks_en, 0);
+	hci_h4p_set_clk(info, &info->rx_clocks_en, 0);
+	gpio_set_value(info->reset_gpio, 0);
+	gpio_set_value(info->bt_wakeup_gpio, 0);
+	kfree_skb(info->rx_skb);
+
+	return 0;
+}
+
+static void hci_h4p_hci_destruct(struct hci_dev *hdev)
+{
+}
+
+static int hci_h4p_hci_send_frame(struct sk_buff *skb)
+{
+	struct hci_h4p_info *info;
+	struct hci_dev *hdev = (struct hci_dev *)skb->dev;
+	int err = 0;
+
+	if (!hdev) {
+		printk(KERN_WARNING "hci_h4p: Frame for unknown device\n");
+		return -ENODEV;
+	}
+
+	NBT_DBG("dev %p, skb %p\n", hdev, skb);
+
+	info = hdev->driver_data;
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags)) {
+		dev_warn(info->dev, "Frame for non-running device\n");
+		return -EIO;
+	}
+
+	switch (bt_cb(skb)->pkt_type) {
+	case HCI_COMMAND_PKT:
+		hdev->stat.cmd_tx++;
+		break;
+	case HCI_ACLDATA_PKT:
+		hdev->stat.acl_tx++;
+		break;
+	case HCI_SCODATA_PKT:
+		hdev->stat.sco_tx++;
+		break;
+	}
+
+	/* Push frame type to skb */
+	*skb_push(skb, 1) = (bt_cb(skb)->pkt_type);
+	/* We should allways send word aligned data to h4+ devices */
+	if (skb->len % 2) {
+		err = skb_pad(skb, 1);
+	}
+	if (err)
+		return err;
+
+	hci_h4p_enable_tx(info);
+	skb_queue_tail(&info->txq, skb);
+	tasklet_schedule(&info->tx_task);
+
+	return 0;
+}
+
+static int hci_h4p_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
+{
+	return -ENOIOCTLCMD;
+}
+
+static int hci_h4p_register_hdev(struct hci_h4p_info *info)
+{
+	struct hci_dev *hdev;
+
+	/* Initialize and register HCI device */
+
+	hdev = hci_alloc_dev();
+	if (!hdev) {
+		dev_err(info->dev, "Can't allocate memory for device\n");
+		return -ENOMEM;
+	}
+	info->hdev = hdev;
+
+	hdev->dev_type = HCI_UART;
+	hdev->driver_data = info;
+
+	hdev->open = hci_h4p_hci_open;
+	hdev->close = hci_h4p_hci_close;
+	hdev->flush = hci_h4p_hci_flush;
+	hdev->send = hci_h4p_hci_send_frame;
+	hdev->destruct = hci_h4p_hci_destruct;
+	hdev->ioctl = hci_h4p_hci_ioctl;
+
+	hdev->owner = THIS_MODULE;
+
+	if (hci_register_dev(hdev) < 0) {
+		dev_err(info->dev, "hci_h4p: Can't register HCI device %s.\n", hdev->name);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static int hci_h4p_probe(struct platform_device *pdev)
+{
+	struct omap_bluetooth_config *bt_config;
+	struct hci_h4p_info *info;
+	int irq, err;
+
+	dev_info(&pdev->dev, "Registering HCI H4P device\n");
+	info = kzalloc(sizeof(struct hci_h4p_info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	info->dev = &pdev->dev;
+	info->pm_enabled = 0;
+	info->tx_pm_enabled = 0;
+	info->rx_pm_enabled = 0;
+	info->garbage_bytes = 0;
+	info->tx_clocks_en = 0;
+	info->rx_clocks_en = 0;
+	tasklet_init(&info->tx_task, hci_h4p_tx_tasklet, (unsigned long)info);
+	tasklet_init(&info->rx_task, hci_h4p_rx_tasklet, (unsigned long)info);
+	/* hci_h4p_hci_open assumes that tasklet is disabled in startup */
+	tasklet_disable(&info->tx_task);
+	tasklet_disable(&info->rx_task);
+	spin_lock_init(&info->lock);
+	spin_lock_init(&info->clocks_lock);
+	skb_queue_head_init(&info->txq);
+	init_timer(&info->tx_pm_timer);
+	info->tx_pm_timer.function = hci_h4p_tx_pm_timer;
+	info->tx_pm_timer.data = (unsigned long)info;
+	init_timer(&info->rx_pm_timer);
+	info->rx_pm_timer.function = hci_h4p_rx_pm_timer;
+	info->rx_pm_timer.data = (unsigned long)info;
+
+	if (pdev->dev.platform_data == NULL) {
+		dev_err(&pdev->dev, "Could not get Bluetooth config data\n");
+		return -ENODATA;
+	}
+
+	bt_config = pdev->dev.platform_data;
+	info->chip_type = bt_config->chip_type;
+	info->bt_wakeup_gpio = bt_config->bt_wakeup_gpio;
+	info->host_wakeup_gpio = bt_config->host_wakeup_gpio;
+	info->reset_gpio = bt_config->reset_gpio;
+	info->bt_sysclk = bt_config->bt_sysclk;
+
+	NBT_DBG("RESET gpio: %d\n", info->reset_gpio);
+	NBT_DBG("BTWU gpio: %d\n", info->bt_wakeup_gpio);
+	NBT_DBG("HOSTWU gpio: %d\n", info->host_wakeup_gpio);
+	NBT_DBG("Uart: %d\n", bt_config->bt_uart);
+	NBT_DBG("sysclk: %d\n", info->bt_sysclk);
+
+	err = gpio_request(info->reset_gpio, "BT reset");
+	if (err < 0) {
+		dev_err(&pdev->dev, "Cannot get GPIO line %d\n",
+			info->reset_gpio);
+		kfree(info);
+		goto cleanup;
+	}
+
+	err = gpio_request(info->bt_wakeup_gpio, "BT wakeup");
+	if (err < 0)
+	{
+		dev_err(info->dev, "Cannot get GPIO line 0x%d",
+			info->bt_wakeup_gpio);
+		gpio_free(info->reset_gpio);
+		kfree(info);
+		goto cleanup;
+	}
+
+	err = gpio_request(info->host_wakeup_gpio, "BT host wakeup");
+	if (err < 0)
+	{
+		dev_err(info->dev, "Cannot get GPIO line %d",
+		       info->host_wakeup_gpio);
+		gpio_free(info->reset_gpio);
+		gpio_free(info->bt_wakeup_gpio);
+		kfree(info);
+		goto cleanup;
+	}
+
+	gpio_direction_output(info->reset_gpio, 0);
+	gpio_direction_output(info->bt_wakeup_gpio, 0);
+	gpio_direction_input(info->host_wakeup_gpio);
+
+//FIXME
+#if defined(CONFIG_ARCH_OMAP1)
+# define OMAP_UART1_BASE	OMAP1_UART1_BASE
+# define OMAP_UART2_BASE	OMAP1_UART2_BASE
+# define OMAP_UART3_BASE	OMAP1_UART3_BASE
+#elif defined(CONFIG_ARCH_OMAP2)
+# define OMAP_UART1_BASE	OMAP2_UART1_BASE
+# define OMAP_UART2_BASE	OMAP2_UART2_BASE
+# define OMAP_UART3_BASE	OMAP2_UART3_BASE
+#elif defined(CONFIG_ARCH_OMAP3)
+# define OMAP_UART1_BASE	OMAP3_UART1_BASE
+# define OMAP_UART2_BASE	OMAP3_UART2_BASE
+# define OMAP_UART3_BASE	OMAP3_UART3_BASE
+#elif defined(CONFIG_ARCH_OMAP4)
+# define OMAP_UART1_BASE	OMAP4_UART1_BASE
+# define OMAP_UART2_BASE	OMAP4_UART2_BASE
+# define OMAP_UART3_BASE	OMAP4_UART3_BASE
+#else
+# error
+#endif
+	switch (bt_config->bt_uart) {
+	case 1:
+		if (cpu_is_omap16xx()) {
+			irq = INT_UART1;
+			info->uart_fclk = clk_get(NULL, "uart1_ck");
+		} else if (cpu_is_omap24xx()) {
+			irq = INT_24XX_UART1_IRQ;
+			info->uart_iclk = clk_get(NULL, "uart1_ick");
+			info->uart_fclk = clk_get(NULL, "uart1_fck");
+		}
+		/* FIXME: Use platform_get_resource for the port */
+		info->uart_base = ioremap(OMAP_UART1_BASE, 0x16);
+		if (!info->uart_base)
+			goto cleanup;
+		break;
+	case 2:
+		if (cpu_is_omap16xx()) {
+			irq = INT_UART2;
+			info->uart_fclk = clk_get(NULL, "uart2_ck");
+		} else {
+			irq = INT_24XX_UART2_IRQ;
+			info->uart_iclk = clk_get(NULL, "uart2_ick");
+			info->uart_fclk = clk_get(NULL, "uart2_fck");
+		}
+		/* FIXME: Use platform_get_resource for the port */
+		info->uart_base = ioremap(OMAP_UART2_BASE, 0x16);
+		if (!info->uart_base)
+			goto cleanup;
+		break;
+	case 3:
+		if (cpu_is_omap16xx()) {
+			irq = INT_UART3;
+			info->uart_fclk = clk_get(NULL, "uart3_ck");
+		} else {
+			irq = INT_24XX_UART3_IRQ;
+			info->uart_iclk = clk_get(NULL, "uart3_ick");
+			info->uart_fclk = clk_get(NULL, "uart3_fck");
+		}
+		/* FIXME: Use platform_get_resource for the port */
+		info->uart_base = ioremap(OMAP_UART3_BASE, 0x16);
+		if (!info->uart_base)
+			goto cleanup;
+		break;
+	default:
+		dev_err(info->dev, "No uart defined\n");
+		goto cleanup;
+	}
+
+	info->irq = irq;
+	err = request_irq(irq, hci_h4p_interrupt, 0, "hci_h4p", (void *)info);
+	if (err < 0) {
+		dev_err(info->dev, "hci_h4p: unable to get IRQ %d\n", irq);
+		goto cleanup;
+	}
+
+	err = request_irq(gpio_to_irq(info->host_wakeup_gpio),
+			  hci_h4p_wakeup_interrupt,
+				IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
+			  "hci_h4p_wkup", (void *)info);
+	if (err < 0) {
+		dev_err(info->dev, "hci_h4p: unable to get wakeup IRQ %d\n",
+			  gpio_to_irq(info->host_wakeup_gpio));
+		free_irq(irq, (void *)info);
+		goto cleanup;
+	}
+
+	hci_h4p_set_clk(info, &info->tx_clocks_en, 1);
+	hci_h4p_set_auto_ctsrts(info, 0, UART_EFR_CTS | UART_EFR_RTS);
+	err = hci_h4p_init_uart(info);
+	if (err < 0)
+		goto cleanup_irq;
+	err = hci_h4p_reset(info);
+	if (err < 0)
+		goto cleanup_irq;
+	err = hci_h4p_wait_for_cts(info, 1, 10);
+	if (err < 0)
+		goto cleanup_irq;
+	hci_h4p_set_clk(info, &info->tx_clocks_en, 0);
+
+	platform_set_drvdata(pdev, info);
+	err = hci_h4p_sysfs_create_files(info->dev);
+	if (err < 0)
+		goto cleanup_irq;
+
+	if (hci_h4p_register_hdev(info) < 0) {
+		dev_err(info->dev, "failed to register hci_h4p hci device\n");
+		goto cleanup_irq;
+	}
+	gpio_set_value(info->reset_gpio, 0);
+
+	return 0;
+
+cleanup_irq:
+	free_irq(irq, (void *)info);
+	free_irq(gpio_to_irq(info->host_wakeup_gpio), (void *)info);
+cleanup:
+	gpio_set_value(info->reset_gpio, 0);
+	gpio_free(info->reset_gpio);
+	gpio_free(info->bt_wakeup_gpio);
+	gpio_free(info->host_wakeup_gpio);
+	kfree(info);
+
+	return err;
+
+}
+
+static int hci_h4p_remove(struct platform_device *dev)
+{
+	struct hci_h4p_info *info;
+
+	info = platform_get_drvdata(dev);
+
+	hci_h4p_hci_close(info->hdev);
+	free_irq(gpio_to_irq(info->host_wakeup_gpio), (void *) info);
+	hci_free_dev(info->hdev);
+	gpio_free(info->reset_gpio);
+	gpio_free(info->bt_wakeup_gpio);
+	gpio_free(info->host_wakeup_gpio);
+	free_irq(info->irq, (void *) info);
+	kfree(info);
+
+	return 0;
+}
+
+static struct platform_driver hci_h4p_driver = {
+	.probe		= hci_h4p_probe,
+	.remove		= hci_h4p_remove,
+	.driver		= {
+		.name	= "hci_h4p",
+	},
+};
+
+static int __init hci_h4p_init(void)
+{
+	int err = 0;
+
+	/* Register the driver with LDM */
+	err = platform_driver_register(&hci_h4p_driver);
+	if (err < 0)
+		printk(KERN_WARNING "failed to register hci_h4p driver\n");
+
+	return err;
+}
+
+static void __exit hci_h4p_exit(void)
+{
+	platform_driver_unregister(&hci_h4p_driver);
+}
+
+module_init(hci_h4p_init);
+module_exit(hci_h4p_exit);
+
+MODULE_DESCRIPTION("h4 driver with nokia extensions");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Ville Tervo");
--- /dev/null
+++ b/drivers/bluetooth/hci_h4p/fw.c
@@ -0,0 +1,155 @@
+/*
+ * This file is part of hci_h4p bluetooth driver
+ *
+ * Copyright (C) 2005, 2006 Nokia Corporation.
+ *
+ * Contact: Ville Tervo <ville.tervo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/skbuff.h>
+#include <linux/firmware.h>
+#include <linux/clk.h>
+
+#include <net/bluetooth/bluetooth.h>
+
+#include "hci_h4p.h"
+
+#define BT_CHIP_TI	2
+#define BT_CHIP_CSR	1
+
+static int fw_pos;
+
+/* Firmware handling */
+static int hci_h4p_open_firmware(struct hci_h4p_info *info,
+				 const struct firmware **fw_entry)
+{
+	int err;
+
+	fw_pos = 0;
+	NBT_DBG_FW("Opening %d firmware\n", info->chip_type);
+	switch (info->chip_type) {
+	case BT_CHIP_TI:
+		err = request_firmware(fw_entry, "brf6150fw.bin", info->dev);
+		break;
+	case BT_CHIP_CSR:
+		err = request_firmware(fw_entry, "bc4fw.bin", info->dev);
+		break;
+	default:
+		dev_err(info->dev, "Invalid chip type\n");
+		*fw_entry = NULL;
+		err = -EINVAL;
+	}
+
+	return err;
+}
+
+static void hci_h4p_close_firmware(const struct firmware *fw_entry)
+{
+	release_firmware(fw_entry);
+}
+
+/* Read fw. Return length of the command. If no more commands in
+ * fw 0 is returned. In error case return value is negative.
+ */
+static int hci_h4p_read_fw_cmd(struct hci_h4p_info *info, struct sk_buff **skb,
+			       const struct firmware *fw_entry, int how)
+{
+	unsigned int cmd_len;
+
+	if (fw_pos >= fw_entry->size) {
+		return 0;
+	}
+
+	cmd_len = fw_entry->data[fw_pos++];
+	if (!cmd_len)
+		return 0;
+
+	if (fw_pos + cmd_len > fw_entry->size) {
+		dev_err(info->dev, "Corrupted firmware image\n");
+		return -EMSGSIZE;
+	}
+
+	*skb = bt_skb_alloc(cmd_len, how);
+	if (!*skb) {
+		dev_err(info->dev, "Cannot reserve memory for buffer\n");
+		return -ENOMEM;
+	}
+	memcpy(skb_put(*skb, cmd_len), &fw_entry->data[fw_pos], cmd_len);
+
+	fw_pos += cmd_len;
+
+	return (*skb)->len;
+}
+
+int hci_h4p_read_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue)
+{
+	const struct firmware *fw_entry = NULL;
+	struct sk_buff *skb = NULL;
+	int err;
+
+	err = hci_h4p_open_firmware(info, &fw_entry);
+	if (err < 0 || !fw_entry)
+		goto err_clean;
+
+	while ((err = hci_h4p_read_fw_cmd(info, &skb, fw_entry, GFP_KERNEL))) {
+		if (err < 0 || !skb)
+			goto err_clean;
+
+		skb_queue_tail(fw_queue, skb);
+	}
+
+err_clean:
+	hci_h4p_close_firmware(fw_entry);
+	return err;
+}
+
+int hci_h4p_send_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue)
+{
+	int err;
+
+	switch(info->chip_type) {
+	case BT_CHIP_CSR:
+		err = hci_h4p_bc4_send_fw(info, fw_queue);
+		break;
+	case BT_CHIP_TI:
+		err = hci_h4p_brf6150_send_fw(info, fw_queue);
+		break;
+	default:
+		dev_err(info->dev, "Don't know how to send firmware\n");
+		err = -EINVAL;
+	}
+
+	return err;
+}
+
+void hci_h4p_parse_fw_event(struct hci_h4p_info *info, struct sk_buff *skb)
+{
+	switch (info->chip_type) {
+	case BT_CHIP_CSR:
+		hci_h4p_bc4_parse_fw_event(info, skb);
+		break;
+	case BT_CHIP_TI:
+		hci_h4p_brf6150_parse_fw_event(info, skb);
+		break;
+	default:
+		dev_err(info->dev, "Don't know how to parse fw event\n");
+		info->fw_error = -EINVAL;
+	}
+
+	return;
+}
--- /dev/null
+++ b/drivers/bluetooth/hci_h4p/fw-csr.c
@@ -0,0 +1,149 @@
+/*
+ * This file is part of hci_h4p bluetooth driver
+ *
+ * Copyright (C) 2005, 2006 Nokia Corporation.
+ *
+ * Contact: Ville Tervo <ville.tervo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/skbuff.h>
+#include <linux/delay.h>
+#include <linux/serial_reg.h>
+
+#include "hci_h4p.h"
+
+void hci_h4p_bc4_parse_fw_event(struct hci_h4p_info *info, struct sk_buff *skb)
+{
+	/* Check if this is fw packet */
+	if (skb->data[0] != 0xff) {
+		hci_recv_frame(skb);
+		return;
+	}
+
+	if (skb->data[11] || skb->data[12]) {
+		dev_err(info->dev, "Firmware sending command failed\n");
+		info->fw_error = -EPROTO;
+	}
+
+	kfree_skb(skb);
+	complete(&info->fw_completion);
+}
+
+int hci_h4p_bc4_send_fw(struct hci_h4p_info *info,
+			struct sk_buff_head *fw_queue)
+{
+	struct sk_buff *skb;
+	unsigned int offset;
+	int retries, count, i;
+
+	info->fw_error = 0;
+
+	NBT_DBG_FW("Sending firmware\n");
+	skb = skb_dequeue(fw_queue);
+
+	if (!skb)
+		return -ENOMSG;
+
+	info->bdaddr[0] = 0x00;
+	info->bdaddr[1] = 0x1D;
+	info->bdaddr[2] = 0x6E;
+	info->bdaddr[3] = 0xD4;
+	info->bdaddr[4] = 0xF0;
+	info->bdaddr[5] = 0x37;
+
+	/* Check if this is bd_address packet */
+	if (skb->data[15] == 0x01 && skb->data[16] == 0x00) {
+		dev_info(info->dev, "bd_address packet found\n");
+		offset = 21;
+		skb->data[offset + 1] = 0x00;
+		skb->data[offset + 5] = 0x00;
+		skb->data[offset + 7] = info->bdaddr[0];
+		skb->data[offset + 6] = info->bdaddr[1];
+		skb->data[offset + 4] = info->bdaddr[2];
+		skb->data[offset + 0] = info->bdaddr[3];
+		skb->data[offset + 3] = info->bdaddr[4];
+		skb->data[offset + 2] = info->bdaddr[5];
+	}
+
+	for (i = 0; i < 6; i++) {
+		if (info->bdaddr[i] != 0x00)
+			break;
+	}
+
+	/* if (i > 5) {
+		dev_info(info->dev, "Valid bluetooth address not found.\n");
+		kfree_skb(skb);
+		return -ENODEV;
+	} */
+
+	for (count = 1; ; count++) {
+		NBT_DBG_FW("Sending firmware command %d\n", count);
+		init_completion(&info->fw_completion);
+		skb_queue_tail(&info->txq, skb);
+		tasklet_schedule(&info->tx_task);
+
+		skb = skb_dequeue(fw_queue);
+		if (!skb)
+			break;
+
+		if (!wait_for_completion_timeout(&info->fw_completion,
+						 msecs_to_jiffies(1000))) {
+			dev_err(info->dev, "No reply to fw command\n");
+			return -ETIMEDOUT;
+		}
+
+		if (info->fw_error) {
+			dev_err(info->dev, "FW error\n");
+			return -EPROTO;
+		}
+	};
+
+	/* Wait for chip warm reset */
+	retries = 100;
+	while ((!skb_queue_empty(&info->txq) ||
+	       !(hci_h4p_inb(info, UART_LSR) & UART_LSR_TEMT)) &&
+	       retries--) {
+		msleep(10);
+	}
+	if (!retries) {
+		dev_err(info->dev, "Transmitter not empty\n");
+		return -ETIMEDOUT;
+	}
+
+	hci_h4p_change_speed(info, BC4_MAX_BAUD_RATE);
+
+	if (hci_h4p_wait_for_cts(info, 1, 100)) {
+		dev_err(info->dev, "cts didn't go down after final speed change\n");
+		return -ETIMEDOUT;
+	}
+
+	retries = 100;
+	do {
+		init_completion(&info->init_completion);
+		hci_h4p_send_alive_packet(info);
+		retries--;
+	} while (!wait_for_completion_timeout(&info->init_completion, 100) &&
+		 retries > 0);
+
+	if (!retries) {
+		dev_err(info->dev, "No alive reply after speed change\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
--- /dev/null
+++ b/drivers/bluetooth/hci_h4p/fw-ti.c
@@ -0,0 +1,90 @@
+/*
+ * This file is part of hci_h4p bluetooth driver
+ *
+ * Copyright (C) 2005, 2006 Nokia Corporation.
+ *
+ * Contact: Ville Tervo <ville.tervo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/skbuff.h>
+
+#include "hci_h4p.h"
+
+void hci_h4p_brf6150_parse_fw_event(struct hci_h4p_info *info,
+				    struct sk_buff *skb)
+{
+	struct hci_fw_event *ev;
+	int err = 0;
+
+	if (bt_cb(skb)->pkt_type != H4_EVT_PKT) {
+		dev_err(info->dev, "Got non event fw packet.\n");
+		err = -EPROTO;
+		goto ret;
+	}
+
+	ev = (struct hci_fw_event *)skb->data;
+	if (ev->hev.evt != HCI_EV_CMD_COMPLETE) {
+		dev_err(info->dev, "Got non cmd complete fw event\n");
+		err = -EPROTO;
+		goto ret;
+	}
+
+	if (ev->status != 0) {
+		dev_err(info->dev, "Got error status from fw command\n");
+		err = -EPROTO;
+		goto ret;
+	}
+
+ret:
+	info->fw_error = err;
+	complete(&info->fw_completion);
+}
+
+int hci_h4p_brf6150_send_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue)
+{
+	struct sk_buff *skb;
+	int err = 0;
+
+	info->fw_error = 0;
+
+	while ((skb = skb_dequeue(fw_queue)) != NULL) {
+		/* We should allways send word aligned data to h4+ devices */
+		if (skb->len % 2) {
+			err = skb_pad(skb, 1);
+		}
+		if (err)
+			return err;
+
+		init_completion(&info->fw_completion);
+		skb_queue_tail(&info->txq, skb);
+		tasklet_schedule(&info->tx_task);
+
+		if (!wait_for_completion_timeout(&info->fw_completion, HZ)) {
+			dev_err(info->dev, "Timeout while sending brf6150 fw\n");
+			return -ETIMEDOUT;
+		}
+
+		if (info->fw_error) {
+			dev_err(info->dev, "There was fw_error while sending bfr6150 fw\n");
+			return -EPROTO;
+		}
+	}
+	NBT_DBG_FW("Firmware sent\n");
+
+	return 0;
+}
--- /dev/null
+++ b/drivers/bluetooth/hci_h4p/hci_h4p.h
@@ -0,0 +1,183 @@
+/*
+ * This file is part of hci_h4p bluetooth driver
+ *
+ * Copyright (C) 2005, 2006 Nokia Corporation.
+ *
+ * Contact: Ville Tervo <ville.tervo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <mach/board.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/hci.h>
+
+#ifndef __DRIVERS_BLUETOOTH_HCI_H4P_H
+#define __DRIVERS_BLUETOOTH_HCI_H4P_H
+
+#define UART_SYSC_OMAP_RESET	0x03
+#define UART_SYSS_RESETDONE	0x01
+#define UART_OMAP_SCR_EMPTY_THR	0x08
+#define UART_OMAP_SCR_WAKEUP	0x10
+#define UART_OMAP_SSR_WAKEUP	0x02
+#define UART_OMAP_SSR_TXFULL	0x01
+
+#if 0
+#define NBT_DBG(fmt, arg...)  printk("%s: " fmt "" , __FUNCTION__ , ## arg)
+#else
+#define NBT_DBG(...)
+#endif
+
+#if 0
+#define NBT_DBG_FW(fmt, arg...)  printk("%s: " fmt "" , __FUNCTION__ , ## arg)
+#else
+#define NBT_DBG_FW(...)
+#endif
+
+#if 0
+#define NBT_DBG_POWER(fmt, arg...)  printk("%s: " fmt "" , __FUNCTION__ , ## arg)
+#else
+#define NBT_DBG_POWER(...)
+#endif
+
+#if 0
+#define NBT_DBG_TRANSFER(fmt, arg...)  printk("%s: " fmt "" , __FUNCTION__ , ## arg)
+#else
+#define NBT_DBG_TRANSFER(...)
+#endif
+
+#if 0
+#define NBT_DBG_TRANSFER_NF(fmt, arg...)  printk(fmt "" , ## arg)
+#else
+#define NBT_DBG_TRANSFER_NF(...)
+#endif
+
+#if 0
+#define NBT_DBG_DMA(fmt, arg...)  printk("%s: " fmt "" , __FUNCTION__ , ## arg)
+#else
+#define NBT_DBG_DMA(...)
+#endif
+
+struct hci_h4p_info {
+	struct hci_dev *hdev;
+	spinlock_t lock;
+
+	void __iomem *uart_base;
+	unsigned long uart_phys_base;
+	int irq;
+	struct device *dev;
+	u8 bdaddr[6];
+	u8 chip_type;
+	u8 bt_wakeup_gpio;
+	u8 host_wakeup_gpio;
+	u8 reset_gpio;
+	u8 bt_sysclk;
+
+
+	struct sk_buff_head fw_queue;
+	struct sk_buff *alive_cmd_skb;
+	struct completion init_completion;
+	struct completion fw_completion;
+	int fw_error;
+	int init_error;
+
+	struct sk_buff_head txq;
+	struct tasklet_struct tx_task;
+
+	struct sk_buff *rx_skb;
+	long rx_count;
+	unsigned long rx_state;
+	unsigned long garbage_bytes;
+	struct tasklet_struct rx_task;
+
+	int pm_enabled;
+	int tx_pm_enabled;
+	int rx_pm_enabled;
+	struct timer_list tx_pm_timer;
+	struct timer_list rx_pm_timer;
+
+	int tx_clocks_en;
+	int rx_clocks_en;
+	spinlock_t clocks_lock;
+	struct clk *uart_iclk;
+	struct clk *uart_fclk;
+};
+
+#define MAX_BAUD_RATE		921600
+#define BC4_MAX_BAUD_RATE	3692300
+#define UART_CLOCK		48000000
+#define BT_INIT_DIVIDER		320
+#define BT_BAUDRATE_DIVIDER	384000000
+#define BT_SYSCLK_DIV		1000
+#define INIT_SPEED		120000
+
+#define H4_TYPE_SIZE		1
+
+/* H4+ packet types */
+#define H4_CMD_PKT		0x01
+#define H4_ACL_PKT		0x02
+#define H4_SCO_PKT		0x03
+#define H4_EVT_PKT		0x04
+#define H4_NEG_PKT		0x06
+#define H4_ALIVE_PKT		0x07
+
+/* TX states */
+#define WAIT_FOR_PKT_TYPE	1
+#define WAIT_FOR_HEADER		2
+#define WAIT_FOR_DATA		3
+
+struct hci_fw_event {
+	struct hci_event_hdr hev;
+	struct hci_ev_cmd_complete cmd;
+	u8 status;
+} __attribute__ ((packed));
+
+struct hci_bc4_set_bdaddr {
+	u8 type;
+	struct hci_command_hdr cmd_hdr;
+} __attribute__ ((packed));
+
+int hci_h4p_send_alive_packet(struct hci_h4p_info *info);
+
+void hci_h4p_bc4_parse_fw_event(struct hci_h4p_info *info,
+				struct sk_buff *skb);
+int hci_h4p_bc4_send_fw(struct hci_h4p_info *info,
+			struct sk_buff_head *fw_queue);
+
+void hci_h4p_brf6150_parse_fw_event(struct hci_h4p_info *info,
+				    struct sk_buff *skb);
+int hci_h4p_brf6150_send_fw(struct hci_h4p_info *info,
+			    struct sk_buff_head *fw_queue);
+
+int hci_h4p_read_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue);
+int hci_h4p_send_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue);
+void hci_h4p_parse_fw_event(struct hci_h4p_info *info, struct sk_buff *skb);
+
+int hci_h4p_sysfs_create_files(struct device *dev);
+
+void hci_h4p_outb(struct hci_h4p_info *info, unsigned int offset, u8 val);
+u8 hci_h4p_inb(struct hci_h4p_info *info, unsigned int offset);
+void hci_h4p_set_rts(struct hci_h4p_info *info, int active);
+int hci_h4p_wait_for_cts(struct hci_h4p_info *info, int active, int timeout_ms);
+void __hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which);
+void hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which);
+void hci_h4p_change_speed(struct hci_h4p_info *info, unsigned long speed);
+int hci_h4p_reset_uart(struct hci_h4p_info *info);
+int hci_h4p_init_uart(struct hci_h4p_info *info);
+
+#endif /* __DRIVERS_BLUETOOTH_HCI_H4P_H */
--- /dev/null
+++ b/drivers/bluetooth/hci_h4p/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the Linux Bluetooth HCI device drivers.
+#
+
+obj-$(CONFIG_BT_HCIH4P)		+= hci_h4p.o
+
+hci_h4p-objs := core.o fw.o uart.o sysfs.o fw-ti.o fw-csr.o
--- /dev/null
+++ b/drivers/bluetooth/hci_h4p/sysfs.c
@@ -0,0 +1,84 @@
+/*
+ * This file is part of hci_h4p bluetooth driver
+ *
+ * Copyright (C) 2005, 2006 Nokia Corporation.
+ *
+ * Contact: Ville Tervo <ville.tervo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+
+#include "hci_h4p.h"
+
+#ifdef CONFIG_SYSFS
+
+static ssize_t hci_h4p_store_bdaddr(struct device *dev, struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	struct hci_h4p_info *info = (struct hci_h4p_info*)dev_get_drvdata(dev);
+	unsigned int bdaddr[6];
+	int ret, i;
+
+	dev_info(info->dev, "HCI_H4P_STORE_BDADDR called\n");
+
+	ret = sscanf(buf, "%2x:%2x:%2x:%2x:%2x:%2x\n",
+			&bdaddr[0], &bdaddr[1], &bdaddr[2],
+			&bdaddr[3], &bdaddr[4], &bdaddr[5]);
+
+	if (ret != 6) {
+		dev_info(info->dev, "bdaddr isn't found\n");
+		return -EINVAL;
+	}
+
+	//for (i = 0; i < 6; i++)
+		//info->bdaddr[i] = bdaddr[i] & 0xff;
+
+	info->bdaddr[0] = 0x00;
+	info->bdaddr[1] = 0x1D;
+	info->bdaddr[2] = 0x6E;
+	info->bdaddr[3] = 0xD4;
+	info->bdaddr[4] = 0xF0;
+	info->bdaddr[5] = 0x37;
+
+	return count;
+}
+
+static ssize_t hci_h4p_show_bdaddr(struct device *dev, struct device_attribute *attr,
+				   char *buf)
+{
+	struct hci_h4p_info *info = (struct hci_h4p_info*)dev_get_drvdata(dev);
+
+	return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
+		       info->bdaddr[0],
+		       info->bdaddr[1],
+		       info->bdaddr[2],
+		       info->bdaddr[3],
+		       info->bdaddr[4],
+		       info->bdaddr[5]);
+}
+
+static DEVICE_ATTR(bdaddr, S_IRUGO | S_IWUSR, hci_h4p_show_bdaddr, hci_h4p_store_bdaddr);
+int hci_h4p_sysfs_create_files(struct device *dev)
+{
+	return device_create_file(dev, &dev_attr_bdaddr);
+}
+
+#endif
--- /dev/null
+++ b/drivers/bluetooth/hci_h4p/uart.c
@@ -0,0 +1,169 @@
+/*
+ * This file is part of hci_h4p bluetooth driver
+ *
+ * Copyright (C) 2005, 2006 Nokia Corporation.
+ *
+ * Contact: Ville Tervo <ville.tervo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/serial_reg.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+
+#include <asm/io.h>
+
+#include "hci_h4p.h"
+
+inline void hci_h4p_outb(struct hci_h4p_info *info, unsigned int offset, u8 val)
+{
+	offset <<= 2;
+	__raw_writeb(val, info->uart_base + offset);
+	//outb(val, info->uart_base + (offset << 2));
+}
+
+inline u8 hci_h4p_inb(struct hci_h4p_info *info, unsigned int offset)
+{
+	offset <<= 2;
+	return (u8)__raw_readb(info->uart_base + offset);
+	//return (unsigned int)__raw_readb(up->membase + offset);
+	//return inb(info->uart_base + (offset << 2));
+}
+
+void hci_h4p_set_rts(struct hci_h4p_info *info, int active)
+{
+	u8 b;
+
+	b = hci_h4p_inb(info, UART_MCR);
+	if (active)
+		b |= UART_MCR_RTS;
+	else
+		b &= ~UART_MCR_RTS;
+	hci_h4p_outb(info, UART_MCR, b);
+}
+
+int hci_h4p_wait_for_cts(struct hci_h4p_info *info, int active,
+			 int timeout_ms)
+{
+	int okay;
+	unsigned long timeout;
+
+	okay = 0;
+	timeout = jiffies + msecs_to_jiffies(timeout_ms);
+	for (;;) {
+		int state;
+
+		state = hci_h4p_inb(info, UART_MSR) & UART_MSR_CTS;
+		if (active) {
+			if (state)
+				return 0;
+		} else {
+			if (!state)
+				return 0;
+		}
+		if (time_after(jiffies, timeout))
+			return -ETIMEDOUT;
+	}
+}
+
+void __hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which)
+{
+	u8 lcr, b;
+
+	lcr = hci_h4p_inb(info, UART_LCR);
+	hci_h4p_outb(info, UART_LCR, 0xbf);
+	b = hci_h4p_inb(info, UART_EFR);
+	if (on)
+		b |= which;
+	else
+		b &= ~which;
+	hci_h4p_outb(info, UART_EFR, b);
+	hci_h4p_outb(info, UART_LCR, lcr);
+}
+
+void hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&info->lock, flags);
+	__hci_h4p_set_auto_ctsrts(info, on, which);
+	spin_unlock_irqrestore(&info->lock, flags);
+}
+
+void hci_h4p_change_speed(struct hci_h4p_info *info, unsigned long speed)
+{
+	unsigned int divisor;
+	u8 lcr, mdr1;
+
+	NBT_DBG("Setting speed %lu\n", speed);
+
+	if (speed >= 460800) {
+		divisor = UART_CLOCK / 13 / speed;
+		mdr1 = 3;
+	} else {
+		divisor = UART_CLOCK / 16 / speed;
+		mdr1 = 0;
+	}
+
+	hci_h4p_outb(info, UART_OMAP_MDR1, 7); /* Make sure UART mode is disabled */
+	lcr = hci_h4p_inb(info, UART_LCR);
+	hci_h4p_outb(info, UART_LCR, UART_LCR_DLAB);     /* Set DLAB */
+	hci_h4p_outb(info, UART_DLL, divisor & 0xff);    /* Set speed */
+	hci_h4p_outb(info, UART_DLM, divisor >> 8);
+	hci_h4p_outb(info, UART_LCR, lcr);
+	hci_h4p_outb(info, UART_OMAP_MDR1, mdr1); /* Make sure UART mode is enabled */
+}
+
+int hci_h4p_reset_uart(struct hci_h4p_info *info)
+{
+	int count = 0;
+
+	/* Reset the  UART */
+	hci_h4p_outb(info, UART_OMAP_SYSC, UART_SYSC_OMAP_RESET);
+	while (!(hci_h4p_inb(info, UART_OMAP_SYSS) & UART_SYSS_RESETDONE)) {
+		if (count++ > 20000) {
+			dev_err(info->dev, "hci_h4p: UART reset timeout\n");
+			return -ENODEV;
+		}
+		udelay(1);
+	}
+
+	return 0;
+}
+
+int hci_h4p_init_uart(struct hci_h4p_info *info)
+{
+	int err;
+
+	err = hci_h4p_reset_uart(info);
+	if (err < 0)
+		return err;
+
+	/* Enable and setup FIFO */
+	hci_h4p_outb(info, UART_LCR, UART_LCR_WLEN8);
+	hci_h4p_outb(info, UART_OMAP_MDR1, 0x00); /* Make sure UART mode is enabled */
+	hci_h4p_outb(info, UART_OMAP_SCR, 0x80);
+	hci_h4p_outb(info, UART_EFR, UART_EFR_ECB);
+	hci_h4p_outb(info, UART_MCR, UART_MCR_TCRTLR);
+	hci_h4p_outb(info, UART_TI752_TLR, 0x1f);
+	hci_h4p_outb(info, UART_TI752_TCR, 0xef);
+	hci_h4p_outb(info, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR |
+		     UART_FCR_CLEAR_XMIT | UART_FCR_R_TRIG_00);
+	hci_h4p_outb(info, UART_IER, UART_IER_RDI);
+
+	return 0;
+}
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -173,6 +173,16 @@ config BT_HCIBTUART
 	  Say Y here to compile support for HCI UART devices into the
 	  kernel or say M to compile it as module (btuart_cs).
 
+config BT_HCIH4P
+	tristate "HCI driver with H4 Nokia extensions"
+	depends on BT && ARCH_OMAP
+	help
+	  Bluetooth HCI driver with H4 extensions.  This driver provides
+	  support for H4+ Bluetooth chip with vendor-specific H4 extensions.
+
+	  Say Y here to compile support for h4 extended devices into the kernel
+	  or say M to compile it as module (hci_h4p).
+
 config BT_HCIVHCI
 	tristate "HCI VHCI (Virtual HCI device) driver"
 	help
--- a/drivers/bluetooth/Makefile
+++ b/drivers/bluetooth/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_BT_HCIDTL1)	+= dtl1_cs.o
 obj-$(CONFIG_BT_HCIBT3C)	+= bt3c_cs.o
 obj-$(CONFIG_BT_HCIBLUECARD)	+= bluecard_cs.o
 obj-$(CONFIG_BT_HCIBTUART)	+= btuart_cs.o
+obj-$(CONFIG_BT_HCIH4P)		+= hci_h4p/
 
 obj-$(CONFIG_BT_HCIBTUSB)	+= btusb.o
 obj-$(CONFIG_BT_HCIBTSDIO)	+= btsdio.o