source: src/linux/universal/linux-3.18/drivers/usb/dwc3/gadget.h @ 31869

Last change on this file since 31869 was 31869, checked in by brainslayer, 6 weeks ago

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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) & 0x1f) << 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) & 0xff) << 16)
38#define DWC3_DEPCFG_STREAM_CAPABLE      (1 << 24)
39#define DWC3_DEPCFG_EP_NUMBER(n)        (((n) & 0x1f) << 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) & 0x3) << 1)
45#define DWC3_DEPCFG_MAX_PACKET_SIZE(n)  (((n) & 0x7ff) << 3)
46#define DWC3_DEPCFG_FIFO_NUMBER(n)      (((n) & 0x1f) << 17)
47#define DWC3_DEPCFG_BURST_SIZE(n)       (((n) & 0xf) << 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 */
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