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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 | |
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5 | * |
6 | * Authors: Felipe Balbi <balbi@ti.com>, | |
7 | * Sebastian Andrzej Siewior <bigeasy@linutronix.de> | |
8 | * | |
9 | * Redistribution and use in source and binary forms, with or without | |
10 | * modification, are permitted provided that the following conditions | |
11 | * are met: | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions, and the following disclaimer, | |
14 | * without modification. | |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in the | |
17 | * documentation and/or other materials provided with the distribution. | |
18 | * 3. The names of the above-listed copyright holders may not be used | |
19 | * to endorse or promote products derived from this software without | |
20 | * specific prior written permission. | |
21 | * | |
22 | * ALTERNATIVELY, this software may be distributed under the terms of the | |
23 | * GNU General Public License ("GPL") version 2, as published by the Free | |
24 | * Software Foundation. | |
25 | * | |
26 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS | |
27 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
28 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
29 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
30 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
31 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
32 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
33 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
34 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
35 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
36 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
37 | */ | |
38 | ||
39 | #ifndef __DRIVERS_USB_DWC3_GADGET_H | |
40 | #define __DRIVERS_USB_DWC3_GADGET_H | |
41 | ||
42 | #include <linux/list.h> | |
43 | #include <linux/usb/gadget.h> | |
44 | #include "io.h" | |
45 | ||
46 | struct dwc3; | |
47 | #define to_dwc3_ep(ep) (container_of(ep, struct dwc3_ep, endpoint)) | |
48 | #define gadget_to_dwc(g) (container_of(g, struct dwc3, gadget)) | |
49 | ||
dc1c70a7 FB |
50 | /* DEPCFG parameter 1 */ |
51 | #define DWC3_DEPCFG_INT_NUM(n) ((n) << 0) | |
52 | #define DWC3_DEPCFG_XFER_COMPLETE_EN (1 << 8) | |
53 | #define DWC3_DEPCFG_XFER_IN_PROGRESS_EN (1 << 9) | |
54 | #define DWC3_DEPCFG_XFER_NOT_READY_EN (1 << 10) | |
55 | #define DWC3_DEPCFG_FIFO_ERROR_EN (1 << 11) | |
56 | #define DWC3_DEPCFG_STREAM_EVENT_EN (1 << 13) | |
57 | #define DWC3_DEPCFG_BINTERVAL_M1(n) ((n) << 16) | |
58 | #define DWC3_DEPCFG_STREAM_CAPABLE (1 << 24) | |
59 | #define DWC3_DEPCFG_EP_NUMBER(n) ((n) << 25) | |
60 | #define DWC3_DEPCFG_BULK_BASED (1 << 30) | |
61 | #define DWC3_DEPCFG_FIFO_BASED (1 << 31) | |
62 | ||
63 | /* DEPCFG parameter 0 */ | |
64 | #define DWC3_DEPCFG_EP_TYPE(n) ((n) << 1) | |
65 | #define DWC3_DEPCFG_MAX_PACKET_SIZE(n) ((n) << 3) | |
66 | #define DWC3_DEPCFG_FIFO_NUMBER(n) ((n) << 17) | |
67 | #define DWC3_DEPCFG_BURST_SIZE(n) ((n) << 22) | |
68 | #define DWC3_DEPCFG_DATA_SEQ_NUM(n) ((n) << 26) | |
2c61a8ef | 69 | /* This applies for core versions earlier than 1.94a */ |
dc1c70a7 | 70 | #define DWC3_DEPCFG_IGN_SEQ_NUM (1 << 31) |
2c61a8ef PZ |
71 | /* These apply for core versions 1.94a and later */ |
72 | #define DWC3_DEPCFG_ACTION_INIT (0 << 30) | |
73 | #define DWC3_DEPCFG_ACTION_RESTORE (1 << 30) | |
74 | #define DWC3_DEPCFG_ACTION_MODIFY (2 << 30) | |
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75 | |
76 | /* DEPXFERCFG parameter 0 */ | |
77 | #define DWC3_DEPXFERCFG_NUM_XFER_RES(n) ((n) & 0xffff) | |
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78 | |
79 | struct dwc3_gadget_ep_cmd_params { | |
dc1c70a7 FB |
80 | u32 param2; |
81 | u32 param1; | |
82 | u32 param0; | |
83 | }; | |
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84 | |
85 | /* -------------------------------------------------------------------------- */ | |
86 | ||
72246da4 FB |
87 | #define to_dwc3_request(r) (container_of(r, struct dwc3_request, request)) |
88 | ||
89 | static inline struct dwc3_request *next_request(struct list_head *list) | |
90 | { | |
91 | if (list_empty(list)) | |
92 | return NULL; | |
93 | ||
94 | return list_first_entry(list, struct dwc3_request, list); | |
95 | } | |
96 | ||
97 | static inline void dwc3_gadget_move_request_queued(struct dwc3_request *req) | |
98 | { | |
99 | struct dwc3_ep *dep = req->dep; | |
100 | ||
101 | req->queued = true; | |
102 | list_move_tail(&req->list, &dep->req_queued); | |
103 | } | |
104 | ||
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105 | void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req, |
106 | int status); | |
107 | ||
04a9bfcd | 108 | int dwc3_gadget_set_test_mode(struct dwc3 *dwc, int mode); |
8598bde7 | 109 | int dwc3_gadget_set_link_state(struct dwc3 *dwc, enum dwc3_link_state state); |
04a9bfcd | 110 | |
25b8ff68 FB |
111 | void dwc3_ep0_interrupt(struct dwc3 *dwc, |
112 | const struct dwc3_event_depevt *event); | |
72246da4 | 113 | void dwc3_ep0_out_start(struct dwc3 *dwc); |
08f0d966 | 114 | int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value); |
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115 | int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request, |
116 | gfp_t gfp_flags); | |
117 | int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value); | |
118 | int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep, | |
119 | unsigned cmd, struct dwc3_gadget_ep_cmd_params *params); | |
b09bb642 | 120 | int dwc3_send_gadget_generic_command(struct dwc3 *dwc, int cmd, u32 param); |
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121 | |
122 | /** | |
123 | * dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW | |
124 | * @dwc: DesignWare USB3 Pointer | |
125 | * @number: DWC endpoint number | |
126 | * | |
127 | * Caller should take care of locking | |
128 | */ | |
129 | static inline u32 dwc3_gadget_ep_get_transfer_index(struct dwc3 *dwc, u8 number) | |
130 | { | |
131 | u32 res_id; | |
132 | ||
133 | res_id = dwc3_readl(dwc->regs, DWC3_DEPCMD(number)); | |
134 | ||
135 | return DWC3_DEPCMD_GET_RSC_IDX(res_id); | |
136 | } | |
137 | ||
138 | /** | |
139 | * dwc3_gadget_event_string - returns event name | |
140 | * @event: the event code | |
141 | */ | |
142 | static inline const char *dwc3_gadget_event_string(u8 event) | |
143 | { | |
144 | switch (event) { | |
145 | case DWC3_DEVICE_EVENT_DISCONNECT: | |
146 | return "Disconnect"; | |
147 | case DWC3_DEVICE_EVENT_RESET: | |
148 | return "Reset"; | |
149 | case DWC3_DEVICE_EVENT_CONNECT_DONE: | |
150 | return "Connection Done"; | |
151 | case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE: | |
152 | return "Link Status Change"; | |
153 | case DWC3_DEVICE_EVENT_WAKEUP: | |
154 | return "WakeUp"; | |
155 | case DWC3_DEVICE_EVENT_EOPF: | |
156 | return "End-Of-Frame"; | |
157 | case DWC3_DEVICE_EVENT_SOF: | |
158 | return "Start-Of-Frame"; | |
159 | case DWC3_DEVICE_EVENT_ERRATIC_ERROR: | |
160 | return "Erratic Error"; | |
161 | case DWC3_DEVICE_EVENT_CMD_CMPL: | |
162 | return "Command Complete"; | |
163 | case DWC3_DEVICE_EVENT_OVERFLOW: | |
164 | return "Overflow"; | |
165 | } | |
166 | ||
167 | return "UNKNOWN"; | |
168 | } | |
169 | ||
170 | /** | |
171 | * dwc3_ep_event_string - returns event name | |
172 | * @event: then event code | |
173 | */ | |
174 | static inline const char *dwc3_ep_event_string(u8 event) | |
175 | { | |
176 | switch (event) { | |
177 | case DWC3_DEPEVT_XFERCOMPLETE: | |
178 | return "Transfer Complete"; | |
179 | case DWC3_DEPEVT_XFERINPROGRESS: | |
180 | return "Transfer In-Progress"; | |
181 | case DWC3_DEPEVT_XFERNOTREADY: | |
182 | return "Transfer Not Ready"; | |
183 | case DWC3_DEPEVT_RXTXFIFOEVT: | |
184 | return "FIFO"; | |
185 | case DWC3_DEPEVT_STREAMEVT: | |
186 | return "Stream"; | |
187 | case DWC3_DEPEVT_EPCMDCMPLT: | |
188 | return "Endpoint Command Complete"; | |
189 | } | |
190 | ||
191 | return "UNKNOWN"; | |
192 | } | |
193 | ||
194 | #endif /* __DRIVERS_USB_DWC3_GADGET_H */ |