1/** 2 * gadget.h - DesignWare USB3 DRD Gadget Header 3 * 4 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com 5 * 6 * Authors: Felipe Balbi <balbi@ti.com>, 7 * Sebastian Andrzej Siewior <bigeasy@linutronix.de> 8 * 9 * This program is free software: you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 of 11 * the License as published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 */ 18 19#ifndef __DRIVERS_USB_DWC3_GADGET_H 20#define __DRIVERS_USB_DWC3_GADGET_H 21 22#include <linux/list.h> 23#include <linux/usb/gadget.h> 24#include "io.h" 25 26struct dwc3; 27#define to_dwc3_ep(ep) (container_of(ep, struct dwc3_ep, endpoint)) 28#define gadget_to_dwc(g) (container_of(g, struct dwc3, gadget)) 29 30/* DEPCFG parameter 1 */ 31#define DWC3_DEPCFG_INT_NUM(n) ((n) << 0) 32#define DWC3_DEPCFG_XFER_COMPLETE_EN (1 << 8) 33#define DWC3_DEPCFG_XFER_IN_PROGRESS_EN (1 << 9) 34#define DWC3_DEPCFG_XFER_NOT_READY_EN (1 << 10) 35#define DWC3_DEPCFG_FIFO_ERROR_EN (1 << 11) 36#define DWC3_DEPCFG_STREAM_EVENT_EN (1 << 13) 37#define DWC3_DEPCFG_BINTERVAL_M1(n) ((n) << 16) 38#define DWC3_DEPCFG_STREAM_CAPABLE (1 << 24) 39#define DWC3_DEPCFG_EP_NUMBER(n) ((n) << 25) 40#define DWC3_DEPCFG_BULK_BASED (1 << 30) 41#define DWC3_DEPCFG_FIFO_BASED (1 << 31) 42 43/* DEPCFG parameter 0 */ 44#define DWC3_DEPCFG_EP_TYPE(n) ((n) << 1) 45#define DWC3_DEPCFG_MAX_PACKET_SIZE(n) ((n) << 3) 46#define DWC3_DEPCFG_FIFO_NUMBER(n) ((n) << 17) 47#define DWC3_DEPCFG_BURST_SIZE(n) ((n) << 22) 48#define DWC3_DEPCFG_DATA_SEQ_NUM(n) ((n) << 26) 49/* This applies for core versions earlier than 1.94a */ 50#define DWC3_DEPCFG_IGN_SEQ_NUM (1 << 31) 51/* These apply for core versions 1.94a and later */ 52#define DWC3_DEPCFG_ACTION_INIT (0 << 30) 53#define DWC3_DEPCFG_ACTION_RESTORE (1 << 30) 54#define DWC3_DEPCFG_ACTION_MODIFY (2 << 30) 55 56/* DEPXFERCFG parameter 0 */ 57#define DWC3_DEPXFERCFG_NUM_XFER_RES(n) ((n) & 0xffff) 58 59/* -------------------------------------------------------------------------- */ 60 61#define to_dwc3_request(r) (container_of(r, struct dwc3_request, request)) 62 63static inline struct dwc3_request *next_request(struct list_head *list) 64{ 65 if (list_empty(list)) 66 return NULL; 67 68 return list_first_entry(list, struct dwc3_request, list); 69} 70 71static inline void dwc3_gadget_move_request_queued(struct dwc3_request *req) 72{ 73 struct dwc3_ep *dep = req->dep; 74 75 req->queued = true; 76 list_move_tail(&req->list, &dep->req_queued); 77} 78 79void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req, 80 int status); 81 82void dwc3_ep0_interrupt(struct dwc3 *dwc, 83 const struct dwc3_event_depevt *event); 84void dwc3_ep0_out_start(struct dwc3 *dwc); 85int __dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value); 86int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value); 87int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request, 88 gfp_t gfp_flags); 89int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol); 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