2 * gadget.h - DesignWare USB3 DRD Gadget Header
4 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
6 * Authors: Felipe Balbi <balbi@ti.com>,
7 * Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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.
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.
19 #ifndef __DRIVERS_USB_DWC3_GADGET_H
20 #define __DRIVERS_USB_DWC3_GADGET_H
22 #include <linux/list.h>
23 #include <linux/usb/gadget.h>
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))
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)
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)
56 /* DEPXFERCFG parameter 0 */
57 #define DWC3_DEPXFERCFG_NUM_XFER_RES(n) ((n) & 0xffff)
59 /* -------------------------------------------------------------------------- */
61 #define to_dwc3_request(r) (container_of(r, struct dwc3_request, request))
63 static inline struct dwc3_request *next_request(struct list_head *list)
68 return list_first_entry(list, struct dwc3_request, list);
71 static inline void dwc3_gadget_move_request_queued(struct dwc3_request *req)
73 struct dwc3_ep *dep = req->dep;
76 list_move_tail(&req->list, &dep->req_queued);
79 void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
82 void dwc3_ep0_interrupt(struct dwc3 *dwc,
83 const struct dwc3_event_depevt *event);
84 void dwc3_ep0_out_start(struct dwc3 *dwc);
85 int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value);
86 int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
88 int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value);
91 * dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW
92 * @dwc: DesignWare USB3 Pointer
93 * @number: DWC endpoint number
95 * Caller should take care of locking
97 static inline u32 dwc3_gadget_ep_get_transfer_index(struct dwc3 *dwc, u8 number)
101 res_id = dwc3_readl(dwc->regs, DWC3_DEPCMD(number));
103 return DWC3_DEPCMD_GET_RSC_IDX(res_id);
107 * dwc3_gadget_event_string - returns event name
108 * @event: the event code
110 static inline const char *dwc3_gadget_event_string(u8 event)
113 case DWC3_DEVICE_EVENT_DISCONNECT:
115 case DWC3_DEVICE_EVENT_RESET:
117 case DWC3_DEVICE_EVENT_CONNECT_DONE:
118 return "Connection Done";
119 case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
120 return "Link Status Change";
121 case DWC3_DEVICE_EVENT_WAKEUP:
123 case DWC3_DEVICE_EVENT_EOPF:
124 return "End-Of-Frame";
125 case DWC3_DEVICE_EVENT_SOF:
126 return "Start-Of-Frame";
127 case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
128 return "Erratic Error";
129 case DWC3_DEVICE_EVENT_CMD_CMPL:
130 return "Command Complete";
131 case DWC3_DEVICE_EVENT_OVERFLOW:
139 * dwc3_ep_event_string - returns event name
140 * @event: then event code
142 static inline const char *dwc3_ep_event_string(u8 event)
145 case DWC3_DEPEVT_XFERCOMPLETE:
146 return "Transfer Complete";
147 case DWC3_DEPEVT_XFERINPROGRESS:
148 return "Transfer In-Progress";
149 case DWC3_DEPEVT_XFERNOTREADY:
150 return "Transfer Not Ready";
151 case DWC3_DEPEVT_RXTXFIFOEVT:
153 case DWC3_DEPEVT_STREAMEVT:
155 case DWC3_DEPEVT_EPCMDCMPLT:
156 return "Endpoint Command Complete";
162 #endif /* __DRIVERS_USB_DWC3_GADGET_H */