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wifipineapple-openwrt/target/linux/cns3xxx/files/drivers/usb/dwc/otg_hcd.h

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/* ==========================================================================
* $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd.h $
* $Revision: #45 $
* $Date: 2008/07/15 $
* $Change: 1064918 $
*
* 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
#ifndef __DWC_HCD_H__
#define __DWC_HCD_H__
#include <linux/list.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
struct dwc_otg_device;
#include "otg_cil.h"
/**
* @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.
*/
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;
} 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;
u16 speed;
u16 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 {
/** The DWC otg device pointer */
struct dwc_otg_device *otg_dev;
/** 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;
/**
* 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".
*/
u16 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 host channels assigned to periodic transfers. Currently
* assuming that there is a dedicated host channel for each periodic
* transaction and at least one host channel available for
* non-periodic transactions.
*/
int periodic_channels;
/**
* Number of host channels assigned to non-periodic transfers.
*/
int non_periodic_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 delayed_work start_work;
/**
* 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;
/* */
spinlock_t lock;
#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 dwc_otg_hcd_init(struct platform_device *pdev);
extern void dwc_otg_hcd_remove(struct platform_device *pdev);
/** @} */
/** @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 usb_host_endpoint *ep,
struct urb *urb,
gfp_t mem_flags
);
extern int dwc_otg_hcd_urb_dequeue(struct usb_hcd *hcd,
struct urb *urb, int status);
extern void dwc_otg_hcd_endpoint_disable(struct usb_hcd *hcd,
struct usb_host_endpoint *ep);
extern irqreturn_t dwc_otg_hcd_irq(struct usb_hcd *hcd);
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 int init_hcd_usecs(dwc_otg_hcd_t *hcd);
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_hcd_t *hcd, 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);
/** 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(hcd, 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)
{
return (dwc_otg_qh_t *) kmalloc(sizeof(dwc_otg_qh_t), GFP_KERNEL);
}
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)
{
return (dwc_otg_qtd_t *) kmalloc(sizeof(dwc_otg_qtd_t), GFP_KERNEL);
}
/** 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);
}
/** Remove and free a QTD */
static inline void dwc_otg_hcd_qtd_remove_and_free(dwc_otg_hcd_t *hcd, dwc_otg_qtd_t *qtd)
{
list_del(&qtd->qtd_list_entry);
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
#define dwc_sample_frrem(_hcd, _qh, _letter)
#endif
#endif
#endif /* DWC_DEVICE_ONLY */
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