1*4882a593Smuzhiyun /**
2*4882a593Smuzhiyun * gadget.h - DesignWare USB3 DRD Gadget Header
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Authors: Felipe Balbi <balbi@ti.com>,
7*4882a593Smuzhiyun * Sebastian Andrzej Siewior <bigeasy@linutronix.de>
8*4882a593Smuzhiyun *
9*4882a593Smuzhiyun * Taken from Linux Kernel v3.19-rc1 (drivers/usb/dwc3/gadget.h) and ported
10*4882a593Smuzhiyun * to uboot.
11*4882a593Smuzhiyun *
12*4882a593Smuzhiyun * commit 7a60855972 : usb: dwc3: gadget: fix set_halt() bug with pending
13*4882a593Smuzhiyun transfers
14*4882a593Smuzhiyun *
15*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0
16*4882a593Smuzhiyun *
17*4882a593Smuzhiyun */
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun #ifndef __DRIVERS_USB_DWC3_GADGET_H
20*4882a593Smuzhiyun #define __DRIVERS_USB_DWC3_GADGET_H
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun #include <linux/list.h>
23*4882a593Smuzhiyun #include <linux/usb/gadget.h>
24*4882a593Smuzhiyun #include "io.h"
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun struct dwc3;
27*4882a593Smuzhiyun #define to_dwc3_ep(ep) (container_of(ep, struct dwc3_ep, endpoint))
28*4882a593Smuzhiyun #define gadget_to_dwc(g) (container_of(g, struct dwc3, gadget))
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun /* DEPCFG parameter 1 */
31*4882a593Smuzhiyun #define DWC3_DEPCFG_INT_NUM(n) ((n) << 0)
32*4882a593Smuzhiyun #define DWC3_DEPCFG_XFER_COMPLETE_EN (1 << 8)
33*4882a593Smuzhiyun #define DWC3_DEPCFG_XFER_IN_PROGRESS_EN (1 << 9)
34*4882a593Smuzhiyun #define DWC3_DEPCFG_XFER_NOT_READY_EN (1 << 10)
35*4882a593Smuzhiyun #define DWC3_DEPCFG_FIFO_ERROR_EN (1 << 11)
36*4882a593Smuzhiyun #define DWC3_DEPCFG_STREAM_EVENT_EN (1 << 13)
37*4882a593Smuzhiyun #define DWC3_DEPCFG_BINTERVAL_M1(n) ((n) << 16)
38*4882a593Smuzhiyun #define DWC3_DEPCFG_STREAM_CAPABLE (1 << 24)
39*4882a593Smuzhiyun #define DWC3_DEPCFG_EP_NUMBER(n) ((n) << 25)
40*4882a593Smuzhiyun #define DWC3_DEPCFG_BULK_BASED (1 << 30)
41*4882a593Smuzhiyun #define DWC3_DEPCFG_FIFO_BASED (1 << 31)
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun /* DEPCFG parameter 0 */
44*4882a593Smuzhiyun #define DWC3_DEPCFG_EP_TYPE(n) ((n) << 1)
45*4882a593Smuzhiyun #define DWC3_DEPCFG_MAX_PACKET_SIZE(n) ((n) << 3)
46*4882a593Smuzhiyun #define DWC3_DEPCFG_FIFO_NUMBER(n) ((n) << 17)
47*4882a593Smuzhiyun #define DWC3_DEPCFG_BURST_SIZE(n) ((n) << 22)
48*4882a593Smuzhiyun #define DWC3_DEPCFG_DATA_SEQ_NUM(n) ((n) << 26)
49*4882a593Smuzhiyun /* This applies for core versions earlier than 1.94a */
50*4882a593Smuzhiyun #define DWC3_DEPCFG_IGN_SEQ_NUM (1 << 31)
51*4882a593Smuzhiyun /* These apply for core versions 1.94a and later */
52*4882a593Smuzhiyun #define DWC3_DEPCFG_ACTION_INIT (0 << 30)
53*4882a593Smuzhiyun #define DWC3_DEPCFG_ACTION_RESTORE (1 << 30)
54*4882a593Smuzhiyun #define DWC3_DEPCFG_ACTION_MODIFY (2 << 30)
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun /* DEPXFERCFG parameter 0 */
57*4882a593Smuzhiyun #define DWC3_DEPXFERCFG_NUM_XFER_RES(n) ((n) & 0xffff)
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun /* -------------------------------------------------------------------------- */
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun #define to_dwc3_request(r) (container_of(r, struct dwc3_request, request))
62*4882a593Smuzhiyun
next_request(struct list_head * list)63*4882a593Smuzhiyun static inline struct dwc3_request *next_request(struct list_head *list)
64*4882a593Smuzhiyun {
65*4882a593Smuzhiyun if (list_empty(list))
66*4882a593Smuzhiyun return NULL;
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun return list_first_entry(list, struct dwc3_request, list);
69*4882a593Smuzhiyun }
70*4882a593Smuzhiyun
dwc3_gadget_move_request_queued(struct dwc3_request * req)71*4882a593Smuzhiyun static inline void dwc3_gadget_move_request_queued(struct dwc3_request *req)
72*4882a593Smuzhiyun {
73*4882a593Smuzhiyun struct dwc3_ep *dep = req->dep;
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun req->queued = true;
76*4882a593Smuzhiyun list_move_tail(&req->list, &dep->req_queued);
77*4882a593Smuzhiyun }
78*4882a593Smuzhiyun
79*4882a593Smuzhiyun void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
80*4882a593Smuzhiyun int status);
81*4882a593Smuzhiyun
82*4882a593Smuzhiyun void dwc3_ep0_interrupt(struct dwc3 *dwc,
83*4882a593Smuzhiyun const struct dwc3_event_depevt *event);
84*4882a593Smuzhiyun void dwc3_ep0_out_start(struct dwc3 *dwc);
85*4882a593Smuzhiyun int __dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value);
86*4882a593Smuzhiyun int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value);
87*4882a593Smuzhiyun int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
88*4882a593Smuzhiyun gfp_t gfp_flags);
89*4882a593Smuzhiyun int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol);
90*4882a593Smuzhiyun void dwc3_gadget_uboot_handle_interrupt(struct dwc3 *dwc);
91*4882a593Smuzhiyun
92*4882a593Smuzhiyun /**
93*4882a593Smuzhiyun * dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW
94*4882a593Smuzhiyun * @dwc: DesignWare USB3 Pointer
95*4882a593Smuzhiyun * @number: DWC endpoint number
96*4882a593Smuzhiyun *
97*4882a593Smuzhiyun * Caller should take care of locking
98*4882a593Smuzhiyun */
dwc3_gadget_ep_get_transfer_index(struct dwc3 * dwc,u8 number)99*4882a593Smuzhiyun static inline u32 dwc3_gadget_ep_get_transfer_index(struct dwc3 *dwc, u8 number)
100*4882a593Smuzhiyun {
101*4882a593Smuzhiyun u32 res_id;
102*4882a593Smuzhiyun
103*4882a593Smuzhiyun res_id = dwc3_readl(dwc->regs, DWC3_DEPCMD(number));
104*4882a593Smuzhiyun
105*4882a593Smuzhiyun return DWC3_DEPCMD_GET_RSC_IDX(res_id);
106*4882a593Smuzhiyun }
107*4882a593Smuzhiyun
108*4882a593Smuzhiyun #endif /* __DRIVERS_USB_DWC3_GADGET_H */
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