195 lines
6.3 KiB
C
195 lines
6.3 KiB
C
/**
|
|
* gadget.h - DesignWare USB3 DRD Gadget Header
|
|
*
|
|
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
|
|
*
|
|
* Authors: Felipe Balbi <balbi@ti.com>,
|
|
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions, and the following disclaimer,
|
|
* without modification.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The names of the above-listed copyright holders may not be used
|
|
* to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* ALTERNATIVELY, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2, as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
|
|
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
|
* CONTRIBUTORS 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 __DRIVERS_USB_DWC3_GADGET_H
|
|
#define __DRIVERS_USB_DWC3_GADGET_H
|
|
|
|
#include <linux/list.h>
|
|
#include <linux/usb/gadget.h>
|
|
#include "io.h"
|
|
|
|
struct dwc3;
|
|
#define to_dwc3_ep(ep) (container_of(ep, struct dwc3_ep, endpoint))
|
|
#define gadget_to_dwc(g) (container_of(g, struct dwc3, gadget))
|
|
|
|
/* DEPCFG parameter 1 */
|
|
#define DWC3_DEPCFG_INT_NUM(n) ((n) << 0)
|
|
#define DWC3_DEPCFG_XFER_COMPLETE_EN (1 << 8)
|
|
#define DWC3_DEPCFG_XFER_IN_PROGRESS_EN (1 << 9)
|
|
#define DWC3_DEPCFG_XFER_NOT_READY_EN (1 << 10)
|
|
#define DWC3_DEPCFG_FIFO_ERROR_EN (1 << 11)
|
|
#define DWC3_DEPCFG_STREAM_EVENT_EN (1 << 13)
|
|
#define DWC3_DEPCFG_BINTERVAL_M1(n) ((n) << 16)
|
|
#define DWC3_DEPCFG_STREAM_CAPABLE (1 << 24)
|
|
#define DWC3_DEPCFG_EP_NUMBER(n) ((n) << 25)
|
|
#define DWC3_DEPCFG_BULK_BASED (1 << 30)
|
|
#define DWC3_DEPCFG_FIFO_BASED (1 << 31)
|
|
|
|
/* DEPCFG parameter 0 */
|
|
#define DWC3_DEPCFG_EP_TYPE(n) ((n) << 1)
|
|
#define DWC3_DEPCFG_MAX_PACKET_SIZE(n) ((n) << 3)
|
|
#define DWC3_DEPCFG_FIFO_NUMBER(n) ((n) << 17)
|
|
#define DWC3_DEPCFG_BURST_SIZE(n) ((n) << 22)
|
|
#define DWC3_DEPCFG_DATA_SEQ_NUM(n) ((n) << 26)
|
|
/* This applies for core versions earlier than 1.94a */
|
|
#define DWC3_DEPCFG_IGN_SEQ_NUM (1 << 31)
|
|
/* These apply for core versions 1.94a and later */
|
|
#define DWC3_DEPCFG_ACTION_INIT (0 << 30)
|
|
#define DWC3_DEPCFG_ACTION_RESTORE (1 << 30)
|
|
#define DWC3_DEPCFG_ACTION_MODIFY (2 << 30)
|
|
|
|
/* DEPXFERCFG parameter 0 */
|
|
#define DWC3_DEPXFERCFG_NUM_XFER_RES(n) ((n) & 0xffff)
|
|
|
|
struct dwc3_gadget_ep_cmd_params {
|
|
u32 param2;
|
|
u32 param1;
|
|
u32 param0;
|
|
};
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
#define to_dwc3_request(r) (container_of(r, struct dwc3_request, request))
|
|
|
|
static inline struct dwc3_request *next_request(struct list_head *list)
|
|
{
|
|
if (list_empty(list))
|
|
return NULL;
|
|
|
|
return list_first_entry(list, struct dwc3_request, list);
|
|
}
|
|
|
|
static inline void dwc3_gadget_move_request_queued(struct dwc3_request *req)
|
|
{
|
|
struct dwc3_ep *dep = req->dep;
|
|
|
|
req->queued = true;
|
|
list_move_tail(&req->list, &dep->req_queued);
|
|
}
|
|
|
|
void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
|
|
int status);
|
|
|
|
int dwc3_gadget_set_test_mode(struct dwc3 *dwc, int mode);
|
|
int dwc3_gadget_set_link_state(struct dwc3 *dwc, enum dwc3_link_state state);
|
|
|
|
void dwc3_ep0_interrupt(struct dwc3 *dwc,
|
|
const struct dwc3_event_depevt *event);
|
|
void dwc3_ep0_out_start(struct dwc3 *dwc);
|
|
int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value);
|
|
int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
|
|
gfp_t gfp_flags);
|
|
int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value);
|
|
int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
|
|
unsigned cmd, struct dwc3_gadget_ep_cmd_params *params);
|
|
int dwc3_send_gadget_generic_command(struct dwc3 *dwc, int cmd, u32 param);
|
|
|
|
/**
|
|
* dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW
|
|
* @dwc: DesignWare USB3 Pointer
|
|
* @number: DWC endpoint number
|
|
*
|
|
* Caller should take care of locking
|
|
*/
|
|
static inline u32 dwc3_gadget_ep_get_transfer_index(struct dwc3 *dwc, u8 number)
|
|
{
|
|
u32 res_id;
|
|
|
|
res_id = dwc3_readl(dwc->regs, DWC3_DEPCMD(number));
|
|
|
|
return DWC3_DEPCMD_GET_RSC_IDX(res_id);
|
|
}
|
|
|
|
/**
|
|
* dwc3_gadget_event_string - returns event name
|
|
* @event: the event code
|
|
*/
|
|
static inline const char *dwc3_gadget_event_string(u8 event)
|
|
{
|
|
switch (event) {
|
|
case DWC3_DEVICE_EVENT_DISCONNECT:
|
|
return "Disconnect";
|
|
case DWC3_DEVICE_EVENT_RESET:
|
|
return "Reset";
|
|
case DWC3_DEVICE_EVENT_CONNECT_DONE:
|
|
return "Connection Done";
|
|
case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
|
|
return "Link Status Change";
|
|
case DWC3_DEVICE_EVENT_WAKEUP:
|
|
return "WakeUp";
|
|
case DWC3_DEVICE_EVENT_EOPF:
|
|
return "End-Of-Frame";
|
|
case DWC3_DEVICE_EVENT_SOF:
|
|
return "Start-Of-Frame";
|
|
case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
|
|
return "Erratic Error";
|
|
case DWC3_DEVICE_EVENT_CMD_CMPL:
|
|
return "Command Complete";
|
|
case DWC3_DEVICE_EVENT_OVERFLOW:
|
|
return "Overflow";
|
|
}
|
|
|
|
return "UNKNOWN";
|
|
}
|
|
|
|
/**
|
|
* dwc3_ep_event_string - returns event name
|
|
* @event: then event code
|
|
*/
|
|
static inline const char *dwc3_ep_event_string(u8 event)
|
|
{
|
|
switch (event) {
|
|
case DWC3_DEPEVT_XFERCOMPLETE:
|
|
return "Transfer Complete";
|
|
case DWC3_DEPEVT_XFERINPROGRESS:
|
|
return "Transfer In-Progress";
|
|
case DWC3_DEPEVT_XFERNOTREADY:
|
|
return "Transfer Not Ready";
|
|
case DWC3_DEPEVT_RXTXFIFOEVT:
|
|
return "FIFO";
|
|
case DWC3_DEPEVT_STREAMEVT:
|
|
return "Stream";
|
|
case DWC3_DEPEVT_EPCMDCMPLT:
|
|
return "Endpoint Command Complete";
|
|
}
|
|
|
|
return "UNKNOWN";
|
|
}
|
|
|
|
#endif /* __DRIVERS_USB_DWC3_GADGET_H */
|