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Kishon Vijay Abraham I85d5e702015-02-23 18:39:50 +05301/**
2 * gadget.h - DesignWare USB3 DRD Gadget Header
3 *
Kishon Vijay Abraham I30c31d52015-02-23 18:39:52 +05304 * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com
Kishon Vijay Abraham I85d5e702015-02-23 18:39:50 +05305 *
6 * Authors: Felipe Balbi <balbi@ti.com>,
7 * Sebastian Andrzej Siewior <bigeasy@linutronix.de>
8 *
Kishon Vijay Abraham I30c31d52015-02-23 18:39:52 +05309 * Taken from Linux Kernel v3.19-rc1 (drivers/usb/dwc3/gadget.h) and ported
10 * to uboot.
Kishon Vijay Abraham I85d5e702015-02-23 18:39:50 +053011 *
Kishon Vijay Abraham I30c31d52015-02-23 18:39:52 +053012 * commit 7a60855972 : usb: dwc3: gadget: fix set_halt() bug with pending
13 transfers
14 *
15 * SPDX-License-Identifier: GPL-2.0
16 *
Kishon Vijay Abraham I85d5e702015-02-23 18:39:50 +053017 */
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);
Kishon Vijay Abraham I747a0a52015-02-23 18:39:58 +053090void dwc3_gadget_uboot_handle_interrupt(struct dwc3 *dwc);
Kishon Vijay Abraham I85d5e702015-02-23 18:39:50 +053091
92/**
93 * dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW
94 * @dwc: DesignWare USB3 Pointer
95 * @number: DWC endpoint number
96 *
97 * Caller should take care of locking
98 */
99static inline u32 dwc3_gadget_ep_get_transfer_index(struct dwc3 *dwc, u8 number)
100{
101 u32 res_id;
102
103 res_id = dwc3_readl(dwc->regs, DWC3_DEPCMD(number));
104
105 return DWC3_DEPCMD_GET_RSC_IDX(res_id);
106}
107
108#endif /* __DRIVERS_USB_DWC3_GADGET_H */