LXR uboot/drivers/usb/dwc3/gadget.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/**
   3 * gadget.h - DesignWare USB3 DRD Gadget Header
   4 *
   5 * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com
   6 *
   7 * Authors: Felipe Balbi <balbi@ti.com>,
   8 *          Sebastian Andrzej Siewior <bigeasy@linutronix.de>
   9 *
  10 * Taken from Linux Kernel v3.19-rc1 (drivers/usb/dwc3/gadget.h) and ported
  11 * to uboot.
  12 *
  13 * commit 7a60855972 : usb: dwc3: gadget: fix set_halt() bug with pending
  14                       transfers
  15 *
  16 */
  17
  18#ifndef __DRIVERS_USB_DWC3_GADGET_H
  19#define __DRIVERS_USB_DWC3_GADGET_H
  20
  21#include <linux/list.h>
  22#include <linux/usb/gadget.h>
  23#include "io.h"
  24
  25struct dwc3;
  26#define to_dwc3_ep(ep)          (container_of(ep, struct dwc3_ep, endpoint))
  27#define gadget_to_dwc(g)        (container_of(g, struct dwc3, gadget))
  28
  29/* DEPCFG parameter 1 */
  30#define DWC3_DEPCFG_INT_NUM(n)          ((n) << 0)
  31#define DWC3_DEPCFG_XFER_COMPLETE_EN    (1 << 8)
  32#define DWC3_DEPCFG_XFER_IN_PROGRESS_EN (1 << 9)
  33#define DWC3_DEPCFG_XFER_NOT_READY_EN   (1 << 10)
  34#define DWC3_DEPCFG_FIFO_ERROR_EN       (1 << 11)
  35#define DWC3_DEPCFG_STREAM_EVENT_EN     (1 << 13)
  36#define DWC3_DEPCFG_BINTERVAL_M1(n)     ((n) << 16)
  37#define DWC3_DEPCFG_STREAM_CAPABLE      (1 << 24)
  38#define DWC3_DEPCFG_EP_NUMBER(n)        ((n) << 25)
  39#define DWC3_DEPCFG_BULK_BASED          (1 << 30)
  40#define DWC3_DEPCFG_FIFO_BASED          (1 << 31)
  41
  42/* DEPCFG parameter 0 */
  43#define DWC3_DEPCFG_EP_TYPE(n)          ((n) << 1)
  44#define DWC3_DEPCFG_MAX_PACKET_SIZE(n)  ((n) << 3)
  45#define DWC3_DEPCFG_FIFO_NUMBER(n)      ((n) << 17)
  46#define DWC3_DEPCFG_BURST_SIZE(n)       ((n) << 22)
  47#define DWC3_DEPCFG_DATA_SEQ_NUM(n)     ((n) << 26)
  48/* This applies for core versions earlier than 1.94a */
  49#define DWC3_DEPCFG_IGN_SEQ_NUM         (1 << 31)
  50/* These apply for core versions 1.94a and later */
  51#define DWC3_DEPCFG_ACTION_INIT         (0 << 30)
  52#define DWC3_DEPCFG_ACTION_RESTORE      (1 << 30)
  53#define DWC3_DEPCFG_ACTION_MODIFY       (2 << 30)
  54
  55/* DEPXFERCFG parameter 0 */
  56#define DWC3_DEPXFERCFG_NUM_XFER_RES(n) ((n) & 0xffff)
  57
  58/* -------------------------------------------------------------------------- */
  59
  60#define to_dwc3_request(r)      (container_of(r, struct dwc3_request, request))
  61
  62static inline struct dwc3_request *next_request(struct list_head *list)
  63{
  64        if (list_empty(list))
  65                return NULL;
  66
  67        return list_first_entry(list, struct dwc3_request, list);
  68}
  69
  70static inline void dwc3_gadget_move_request_queued(struct dwc3_request *req)
  71{
  72        struct dwc3_ep          *dep = req->dep;
  73
  74        req->queued = true;
  75        list_move_tail(&req->list, &dep->req_queued);
  76}
  77
  78void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
  79                int status);
  80
  81void dwc3_ep0_interrupt(struct dwc3 *dwc,
  82                const struct dwc3_event_depevt *event);
  83void dwc3_ep0_out_start(struct dwc3 *dwc);
  84int __dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value);
  85int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value);
  86int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
  87                gfp_t gfp_flags);
  88int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol);
  89void dwc3_gadget_uboot_handle_interrupt(struct dwc3 *dwc);
  90
  91/**
  92 * dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW
  93 * @dwc: DesignWare USB3 Pointer
  94 * @number: DWC endpoint number
  95 *
  96 * Caller should take care of locking
  97 */
  98static inline u32 dwc3_gadget_ep_get_transfer_index(struct dwc3 *dwc, u8 number)
  99{
 100        u32                     res_id;
 101
 102        res_id = dwc3_readl(dwc->regs, DWC3_DEPCMD(number));
 103
 104        return DWC3_DEPCMD_GET_RSC_IDX(res_id);
 105}
 106
 107#endif /* __DRIVERS_USB_DWC3_GADGET_H */
 108