mirror of https://gitee.com/openkylin/linux.git
187 lines
5.9 KiB
C
187 lines
5.9 KiB
C
/**
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* gadget.h - DesignWare USB3 DRD Gadget Header
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*
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* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
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*
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* Authors: Felipe Balbi <balbi@ti.com>,
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* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The names of the above-listed copyright holders may not be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2, as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __DRIVERS_USB_DWC3_GADGET_H
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#define __DRIVERS_USB_DWC3_GADGET_H
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#include <linux/list.h>
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#include <linux/usb/gadget.h>
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#include "io.h"
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struct dwc3;
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#define to_dwc3_ep(ep) (container_of(ep, struct dwc3_ep, endpoint))
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#define gadget_to_dwc(g) (container_of(g, struct dwc3, gadget))
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/* DEPCFG parameter 1 */
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#define DWC3_DEPCFG_INT_NUM(n) ((n) << 0)
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#define DWC3_DEPCFG_XFER_COMPLETE_EN (1 << 8)
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#define DWC3_DEPCFG_XFER_IN_PROGRESS_EN (1 << 9)
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#define DWC3_DEPCFG_XFER_NOT_READY_EN (1 << 10)
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#define DWC3_DEPCFG_FIFO_ERROR_EN (1 << 11)
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#define DWC3_DEPCFG_STREAM_EVENT_EN (1 << 13)
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#define DWC3_DEPCFG_BINTERVAL_M1(n) ((n) << 16)
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#define DWC3_DEPCFG_STREAM_CAPABLE (1 << 24)
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#define DWC3_DEPCFG_EP_NUMBER(n) ((n) << 25)
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#define DWC3_DEPCFG_BULK_BASED (1 << 30)
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#define DWC3_DEPCFG_FIFO_BASED (1 << 31)
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/* DEPCFG parameter 0 */
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#define DWC3_DEPCFG_EP_TYPE(n) ((n) << 1)
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#define DWC3_DEPCFG_MAX_PACKET_SIZE(n) ((n) << 3)
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#define DWC3_DEPCFG_FIFO_NUMBER(n) ((n) << 17)
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#define DWC3_DEPCFG_BURST_SIZE(n) ((n) << 22)
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#define DWC3_DEPCFG_DATA_SEQ_NUM(n) ((n) << 26)
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#define DWC3_DEPCFG_IGN_SEQ_NUM (1 << 31)
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/* DEPXFERCFG parameter 0 */
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#define DWC3_DEPXFERCFG_NUM_XFER_RES(n) ((n) & 0xffff)
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struct dwc3_gadget_ep_cmd_params {
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u32 param2;
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u32 param1;
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u32 param0;
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};
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/* -------------------------------------------------------------------------- */
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#define to_dwc3_request(r) (container_of(r, struct dwc3_request, request))
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static inline struct dwc3_request *next_request(struct list_head *list)
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{
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if (list_empty(list))
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return NULL;
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return list_first_entry(list, struct dwc3_request, list);
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}
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static inline void dwc3_gadget_move_request_queued(struct dwc3_request *req)
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{
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struct dwc3_ep *dep = req->dep;
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req->queued = true;
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list_move_tail(&req->list, &dep->req_queued);
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}
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void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
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int status);
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void dwc3_ep0_interrupt(struct dwc3 *dwc,
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const struct dwc3_event_depevt *event);
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void dwc3_ep0_out_start(struct dwc3 *dwc);
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int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
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gfp_t gfp_flags);
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int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value);
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int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
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unsigned cmd, struct dwc3_gadget_ep_cmd_params *params);
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void dwc3_map_buffer_to_dma(struct dwc3_request *req);
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void dwc3_unmap_buffer_from_dma(struct dwc3_request *req);
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/**
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* dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW
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* @dwc: DesignWare USB3 Pointer
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* @number: DWC endpoint number
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*
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* Caller should take care of locking
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*/
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static inline u32 dwc3_gadget_ep_get_transfer_index(struct dwc3 *dwc, u8 number)
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{
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u32 res_id;
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res_id = dwc3_readl(dwc->regs, DWC3_DEPCMD(number));
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return DWC3_DEPCMD_GET_RSC_IDX(res_id);
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}
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/**
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* dwc3_gadget_event_string - returns event name
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* @event: the event code
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*/
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static inline const char *dwc3_gadget_event_string(u8 event)
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{
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switch (event) {
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case DWC3_DEVICE_EVENT_DISCONNECT:
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return "Disconnect";
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case DWC3_DEVICE_EVENT_RESET:
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return "Reset";
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case DWC3_DEVICE_EVENT_CONNECT_DONE:
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return "Connection Done";
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case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
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return "Link Status Change";
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case DWC3_DEVICE_EVENT_WAKEUP:
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return "WakeUp";
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case DWC3_DEVICE_EVENT_EOPF:
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return "End-Of-Frame";
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case DWC3_DEVICE_EVENT_SOF:
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return "Start-Of-Frame";
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case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
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return "Erratic Error";
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case DWC3_DEVICE_EVENT_CMD_CMPL:
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return "Command Complete";
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case DWC3_DEVICE_EVENT_OVERFLOW:
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return "Overflow";
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}
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return "UNKNOWN";
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}
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/**
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* dwc3_ep_event_string - returns event name
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* @event: then event code
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*/
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static inline const char *dwc3_ep_event_string(u8 event)
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{
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switch (event) {
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case DWC3_DEPEVT_XFERCOMPLETE:
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return "Transfer Complete";
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case DWC3_DEPEVT_XFERINPROGRESS:
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return "Transfer In-Progress";
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case DWC3_DEPEVT_XFERNOTREADY:
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return "Transfer Not Ready";
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case DWC3_DEPEVT_RXTXFIFOEVT:
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return "FIFO";
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case DWC3_DEPEVT_STREAMEVT:
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return "Stream";
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case DWC3_DEPEVT_EPCMDCMPLT:
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return "Endpoint Command Complete";
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}
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return "UNKNOWN";
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}
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#endif /* __DRIVERS_USB_DWC3_GADGET_H */
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