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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * debug.h - DesignWare USB3 DRD Controller Debug Header
4 *
5 * Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com
6 *
7 * Authors: Felipe Balbi <balbi@ti.com>,
8 * Sebastian Andrzej Siewior <bigeasy@linutronix.de>
9 */
10
11#ifndef __DWC3_DEBUG_H
12#define __DWC3_DEBUG_H
13
14#include "core.h"
15
16/**
17 * dwc3_gadget_ep_cmd_string - returns endpoint command string
18 * @cmd: command code
19 */
20static inline const char *
21dwc3_gadget_ep_cmd_string(u8 cmd)
22{
23 switch (cmd) {
24 case DWC3_DEPCMD_DEPSTARTCFG:
25 return "Start New Configuration";
26 case DWC3_DEPCMD_ENDTRANSFER:
27 return "End Transfer";
28 case DWC3_DEPCMD_UPDATETRANSFER:
29 return "Update Transfer";
30 case DWC3_DEPCMD_STARTTRANSFER:
31 return "Start Transfer";
32 case DWC3_DEPCMD_CLEARSTALL:
33 return "Clear Stall";
34 case DWC3_DEPCMD_SETSTALL:
35 return "Set Stall";
36 case DWC3_DEPCMD_GETEPSTATE:
37 return "Get Endpoint State";
38 case DWC3_DEPCMD_SETTRANSFRESOURCE:
39 return "Set Endpoint Transfer Resource";
40 case DWC3_DEPCMD_SETEPCONFIG:
41 return "Set Endpoint Configuration";
42 default:
43 return "UNKNOWN command";
44 }
45}
46
47/**
48 * dwc3_gadget_generic_cmd_string - returns generic command string
49 * @cmd: command code
50 */
51static inline const char *
52dwc3_gadget_generic_cmd_string(u8 cmd)
53{
54 switch (cmd) {
55 case DWC3_DGCMD_SET_LMP:
56 return "Set LMP";
57 case DWC3_DGCMD_SET_PERIODIC_PAR:
58 return "Set Periodic Parameters";
59 case DWC3_DGCMD_XMIT_FUNCTION:
60 return "Transmit Function Wake Device Notification";
61 case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_LO:
62 return "Set Scratchpad Buffer Array Address Lo";
63 case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_HI:
64 return "Set Scratchpad Buffer Array Address Hi";
65 case DWC3_DGCMD_SELECTED_FIFO_FLUSH:
66 return "Selected FIFO Flush";
67 case DWC3_DGCMD_ALL_FIFO_FLUSH:
68 return "All FIFO Flush";
69 case DWC3_DGCMD_SET_ENDPOINT_NRDY:
70 return "Set Endpoint NRDY";
71 case DWC3_DGCMD_SET_ENDPOINT_PRIME:
72 return "Set Endpoint Prime";
73 case DWC3_DGCMD_RUN_SOC_BUS_LOOPBACK:
74 return "Run SoC Bus Loopback Test";
75 case DWC3_DGCMD_DEV_NOTIFICATION:
76 return "Device Notification";
77 default:
78 return "UNKNOWN";
79 }
80}
81
82/**
83 * dwc3_gadget_link_string - returns link name
84 * @link_state: link state code
85 */
86static inline const char *
87dwc3_gadget_link_string(enum dwc3_link_state link_state)
88{
89 switch (link_state) {
90 case DWC3_LINK_STATE_U0:
91 return "U0";
92 case DWC3_LINK_STATE_U1:
93 return "U1";
94 case DWC3_LINK_STATE_U2:
95 return "U2";
96 case DWC3_LINK_STATE_U3:
97 return "U3";
98 case DWC3_LINK_STATE_SS_DIS:
99 return "SS.Disabled";
100 case DWC3_LINK_STATE_RX_DET:
101 return "RX.Detect";
102 case DWC3_LINK_STATE_SS_INACT:
103 return "SS.Inactive";
104 case DWC3_LINK_STATE_POLL:
105 return "Polling";
106 case DWC3_LINK_STATE_RECOV:
107 return "Recovery";
108 case DWC3_LINK_STATE_HRESET:
109 return "Hot Reset";
110 case DWC3_LINK_STATE_CMPLY:
111 return "Compliance";
112 case DWC3_LINK_STATE_LPBK:
113 return "Loopback";
114 case DWC3_LINK_STATE_RESET:
115 return "Reset";
116 case DWC3_LINK_STATE_RESUME:
117 return "Resume";
118 default:
119 return "UNKNOWN link state";
120 }
121}
122
123/**
124 * dwc3_gadget_hs_link_string - returns highspeed and below link name
125 * @link_state: link state code
126 */
127static inline const char *
128dwc3_gadget_hs_link_string(enum dwc3_link_state link_state)
129{
130 switch (link_state) {
131 case DWC3_LINK_STATE_U0:
132 return "On";
133 case DWC3_LINK_STATE_U2:
134 return "Sleep";
135 case DWC3_LINK_STATE_U3:
136 return "Suspend";
137 case DWC3_LINK_STATE_SS_DIS:
138 return "Disconnected";
139 case DWC3_LINK_STATE_RX_DET:
140 return "Early Suspend";
141 case DWC3_LINK_STATE_RECOV:
142 return "Recovery";
143 case DWC3_LINK_STATE_RESET:
144 return "Reset";
145 case DWC3_LINK_STATE_RESUME:
146 return "Resume";
147 default:
148 return "UNKNOWN link state";
149 }
150}
151
152/**
153 * dwc3_trb_type_string - returns TRB type as a string
154 * @type: the type of the TRB
155 */
156static inline const char *dwc3_trb_type_string(unsigned int type)
157{
158 switch (type) {
159 case DWC3_TRBCTL_NORMAL:
160 return "normal";
161 case DWC3_TRBCTL_CONTROL_SETUP:
162 return "setup";
163 case DWC3_TRBCTL_CONTROL_STATUS2:
164 return "status2";
165 case DWC3_TRBCTL_CONTROL_STATUS3:
166 return "status3";
167 case DWC3_TRBCTL_CONTROL_DATA:
168 return "data";
169 case DWC3_TRBCTL_ISOCHRONOUS_FIRST:
170 return "isoc-first";
171 case DWC3_TRBCTL_ISOCHRONOUS:
172 return "isoc";
173 case DWC3_TRBCTL_LINK_TRB:
174 return "link";
175 default:
176 return "UNKNOWN";
177 }
178}
179
180static inline const char *dwc3_ep0_state_string(enum dwc3_ep0_state state)
181{
182 switch (state) {
183 case EP0_UNCONNECTED:
184 return "Unconnected";
185 case EP0_SETUP_PHASE:
186 return "Setup Phase";
187 case EP0_DATA_PHASE:
188 return "Data Phase";
189 case EP0_STATUS_PHASE:
190 return "Status Phase";
191 default:
192 return "UNKNOWN";
193 }
194}
195
196/**
197 * dwc3_gadget_event_string - returns event name
198 * @event: the event code
199 */
200static inline const char *dwc3_gadget_event_string(char *str, size_t size,
201 const struct dwc3_event_devt *event)
202{
203 enum dwc3_link_state state = event->event_info & DWC3_LINK_STATE_MASK;
204
205 switch (event->type) {
206 case DWC3_DEVICE_EVENT_DISCONNECT:
207 snprintf(str, size, "Disconnect: [%s]",
208 dwc3_gadget_link_string(state));
209 break;
210 case DWC3_DEVICE_EVENT_RESET:
211 snprintf(str, size, "Reset [%s]",
212 dwc3_gadget_link_string(state));
213 break;
214 case DWC3_DEVICE_EVENT_CONNECT_DONE:
215 snprintf(str, size, "Connection Done [%s]",
216 dwc3_gadget_link_string(state));
217 break;
218 case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
219 snprintf(str, size, "Link Change [%s]",
220 dwc3_gadget_link_string(state));
221 break;
222 case DWC3_DEVICE_EVENT_WAKEUP:
223 snprintf(str, size, "WakeUp [%s]",
224 dwc3_gadget_link_string(state));
225 break;
226 case DWC3_DEVICE_EVENT_SUSPEND:
227 snprintf(str, size, "Suspend [%s]",
228 dwc3_gadget_link_string(state));
229 break;
230 case DWC3_DEVICE_EVENT_SOF:
231 snprintf(str, size, "Start-Of-Frame [%s]",
232 dwc3_gadget_link_string(state));
233 break;
234 case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
235 snprintf(str, size, "Erratic Error [%s]",
236 dwc3_gadget_link_string(state));
237 break;
238 case DWC3_DEVICE_EVENT_CMD_CMPL:
239 snprintf(str, size, "Command Complete [%s]",
240 dwc3_gadget_link_string(state));
241 break;
242 case DWC3_DEVICE_EVENT_OVERFLOW:
243 snprintf(str, size, "Overflow [%s]",
244 dwc3_gadget_link_string(state));
245 break;
246 default:
247 snprintf(str, size, "UNKNOWN");
248 }
249
250 return str;
251}
252
253/**
254 * dwc3_ep_event_string - returns event name
255 * @event: then event code
256 */
257static inline const char *dwc3_ep_event_string(char *str, size_t size,
258 const struct dwc3_event_depevt *event, u32 ep0state)
259{
260 u8 epnum = event->endpoint_number;
261 size_t len;
262 int status;
263
264 len = scnprintf(str, size, "ep%d%s: ", epnum >> 1,
265 (epnum & 1) ? "in" : "out");
266
267 status = event->status;
268
269 switch (event->endpoint_event) {
270 case DWC3_DEPEVT_XFERCOMPLETE:
271 len += scnprintf(str + len, size - len,
272 "Transfer Complete (%c%c%c)",
273 status & DEPEVT_STATUS_SHORT ? 'S' : 's',
274 status & DEPEVT_STATUS_IOC ? 'I' : 'i',
275 status & DEPEVT_STATUS_LST ? 'L' : 'l');
276
277 if (epnum <= 1)
278 scnprintf(str + len, size - len, " [%s]",
279 dwc3_ep0_state_string(ep0state));
280 break;
281 case DWC3_DEPEVT_XFERINPROGRESS:
282 scnprintf(str + len, size - len,
283 "Transfer In Progress [%08x] (%c%c%c)",
284 event->parameters,
285 status & DEPEVT_STATUS_SHORT ? 'S' : 's',
286 status & DEPEVT_STATUS_IOC ? 'I' : 'i',
287 status & DEPEVT_STATUS_LST ? 'M' : 'm');
288 break;
289 case DWC3_DEPEVT_XFERNOTREADY:
290 len += scnprintf(str + len, size - len,
291 "Transfer Not Ready [%08x]%s",
292 event->parameters,
293 status & DEPEVT_STATUS_TRANSFER_ACTIVE ?
294 " (Active)" : " (Not Active)");
295
296 /* Control Endpoints */
297 if (epnum <= 1) {
298 int phase = DEPEVT_STATUS_CONTROL_PHASE(event->status);
299
300 switch (phase) {
301 case DEPEVT_STATUS_CONTROL_DATA:
302 scnprintf(str + len, size - len,
303 " [Data Phase]");
304 break;
305 case DEPEVT_STATUS_CONTROL_STATUS:
306 scnprintf(str + len, size - len,
307 " [Status Phase]");
308 }
309 }
310 break;
311 case DWC3_DEPEVT_RXTXFIFOEVT:
312 scnprintf(str + len, size - len, "FIFO");
313 break;
314 case DWC3_DEPEVT_STREAMEVT:
315 status = event->status;
316
317 switch (status) {
318 case DEPEVT_STREAMEVT_FOUND:
319 scnprintf(str + len, size - len, " Stream %d Found",
320 event->parameters);
321 break;
322 case DEPEVT_STREAMEVT_NOTFOUND:
323 default:
324 scnprintf(str + len, size - len, " Stream Not Found");
325 break;
326 }
327
328 break;
329 case DWC3_DEPEVT_EPCMDCMPLT:
330 scnprintf(str + len, size - len, "Endpoint Command Complete");
331 break;
332 default:
333 scnprintf(str + len, size - len, "UNKNOWN");
334 }
335
336 return str;
337}
338
339/**
340 * dwc3_gadget_event_type_string - return event name
341 * @event: the event code
342 */
343static inline const char *dwc3_gadget_event_type_string(u8 event)
344{
345 switch (event) {
346 case DWC3_DEVICE_EVENT_DISCONNECT:
347 return "Disconnect";
348 case DWC3_DEVICE_EVENT_RESET:
349 return "Reset";
350 case DWC3_DEVICE_EVENT_CONNECT_DONE:
351 return "Connect Done";
352 case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
353 return "Link Status Change";
354 case DWC3_DEVICE_EVENT_WAKEUP:
355 return "Wake-Up";
356 case DWC3_DEVICE_EVENT_HIBER_REQ:
357 return "Hibernation";
358 case DWC3_DEVICE_EVENT_SUSPEND:
359 return "Suspend";
360 case DWC3_DEVICE_EVENT_SOF:
361 return "Start of Frame";
362 case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
363 return "Erratic Error";
364 case DWC3_DEVICE_EVENT_CMD_CMPL:
365 return "Command Complete";
366 case DWC3_DEVICE_EVENT_OVERFLOW:
367 return "Overflow";
368 default:
369 return "UNKNOWN";
370 }
371}
372
373static inline const char *dwc3_decode_event(char *str, size_t size, u32 event,
374 u32 ep0state)
375{
376 union dwc3_event evt;
377
378 memcpy(&evt, &event, sizeof(event));
379
380 if (evt.type.is_devspec)
381 return dwc3_gadget_event_string(str, size, &evt.devt);
382 else
383 return dwc3_ep_event_string(str, size, &evt.depevt, ep0state);
384}
385
386static inline const char *dwc3_ep_cmd_status_string(int status)
387{
388 switch (status) {
389 case -ETIMEDOUT:
390 return "Timed Out";
391 case 0:
392 return "Successful";
393 case DEPEVT_TRANSFER_NO_RESOURCE:
394 return "No Resource";
395 case DEPEVT_TRANSFER_BUS_EXPIRY:
396 return "Bus Expiry";
397 default:
398 return "UNKNOWN";
399 }
400}
401
402static inline const char *dwc3_gadget_generic_cmd_status_string(int status)
403{
404 switch (status) {
405 case -ETIMEDOUT:
406 return "Timed Out";
407 case 0:
408 return "Successful";
409 case 1:
410 return "Error";
411 default:
412 return "UNKNOWN";
413 }
414}
415
416
417#ifdef CONFIG_DEBUG_FS
418extern void dwc3_debugfs_create_endpoint_dir(struct dwc3_ep *dep);
419extern void dwc3_debugfs_remove_endpoint_dir(struct dwc3_ep *dep);
420extern void dwc3_debugfs_init(struct dwc3 *d);
421extern void dwc3_debugfs_exit(struct dwc3 *d);
422#else
423static inline void dwc3_debugfs_create_endpoint_dir(struct dwc3_ep *dep)
424{ }
425static inline void dwc3_debugfs_remove_endpoint_dir(struct dwc3_ep *dep)
426{ }
427static inline void dwc3_debugfs_init(struct dwc3 *d)
428{ }
429static inline void dwc3_debugfs_exit(struct dwc3 *d)
430{ }
431#endif
432#endif /* __DWC3_DEBUG_H */
1/**
2 * debug.h - DesignWare USB3 DRD Controller Debug 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 __DWC3_DEBUG_H
20#define __DWC3_DEBUG_H
21
22#include "core.h"
23
24/**
25 * dwc3_gadget_ep_cmd_string - returns endpoint command string
26 * @cmd: command code
27 */
28static inline const char *
29dwc3_gadget_ep_cmd_string(u8 cmd)
30{
31 switch (cmd) {
32 case DWC3_DEPCMD_DEPSTARTCFG:
33 return "Start New Configuration";
34 case DWC3_DEPCMD_ENDTRANSFER:
35 return "End Transfer";
36 case DWC3_DEPCMD_UPDATETRANSFER:
37 return "Update Transfer";
38 case DWC3_DEPCMD_STARTTRANSFER:
39 return "Start Transfer";
40 case DWC3_DEPCMD_CLEARSTALL:
41 return "Clear Stall";
42 case DWC3_DEPCMD_SETSTALL:
43 return "Set Stall";
44 case DWC3_DEPCMD_GETEPSTATE:
45 return "Get Endpoint State";
46 case DWC3_DEPCMD_SETTRANSFRESOURCE:
47 return "Set Endpoint Transfer Resource";
48 case DWC3_DEPCMD_SETEPCONFIG:
49 return "Set Endpoint Configuration";
50 default:
51 return "UNKNOWN command";
52 }
53}
54
55/**
56 * dwc3_gadget_generic_cmd_string - returns generic command string
57 * @cmd: command code
58 */
59static inline const char *
60dwc3_gadget_generic_cmd_string(u8 cmd)
61{
62 switch (cmd) {
63 case DWC3_DGCMD_SET_LMP:
64 return "Set LMP";
65 case DWC3_DGCMD_SET_PERIODIC_PAR:
66 return "Set Periodic Parameters";
67 case DWC3_DGCMD_XMIT_FUNCTION:
68 return "Transmit Function Wake Device Notification";
69 case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_LO:
70 return "Set Scratchpad Buffer Array Address Lo";
71 case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_HI:
72 return "Set Scratchpad Buffer Array Address Hi";
73 case DWC3_DGCMD_SELECTED_FIFO_FLUSH:
74 return "Selected FIFO Flush";
75 case DWC3_DGCMD_ALL_FIFO_FLUSH:
76 return "All FIFO Flush";
77 case DWC3_DGCMD_SET_ENDPOINT_NRDY:
78 return "Set Endpoint NRDY";
79 case DWC3_DGCMD_RUN_SOC_BUS_LOOPBACK:
80 return "Run SoC Bus Loopback Test";
81 default:
82 return "UNKNOWN";
83 }
84}
85
86/**
87 * dwc3_gadget_link_string - returns link name
88 * @link_state: link state code
89 */
90static inline const char *
91dwc3_gadget_link_string(enum dwc3_link_state link_state)
92{
93 switch (link_state) {
94 case DWC3_LINK_STATE_U0:
95 return "U0";
96 case DWC3_LINK_STATE_U1:
97 return "U1";
98 case DWC3_LINK_STATE_U2:
99 return "U2";
100 case DWC3_LINK_STATE_U3:
101 return "U3";
102 case DWC3_LINK_STATE_SS_DIS:
103 return "SS.Disabled";
104 case DWC3_LINK_STATE_RX_DET:
105 return "RX.Detect";
106 case DWC3_LINK_STATE_SS_INACT:
107 return "SS.Inactive";
108 case DWC3_LINK_STATE_POLL:
109 return "Polling";
110 case DWC3_LINK_STATE_RECOV:
111 return "Recovery";
112 case DWC3_LINK_STATE_HRESET:
113 return "Hot Reset";
114 case DWC3_LINK_STATE_CMPLY:
115 return "Compliance";
116 case DWC3_LINK_STATE_LPBK:
117 return "Loopback";
118 case DWC3_LINK_STATE_RESET:
119 return "Reset";
120 case DWC3_LINK_STATE_RESUME:
121 return "Resume";
122 default:
123 return "UNKNOWN link state\n";
124 }
125}
126
127static inline const char *dwc3_ep0_state_string(enum dwc3_ep0_state state)
128{
129 switch (state) {
130 case EP0_UNCONNECTED:
131 return "Unconnected";
132 case EP0_SETUP_PHASE:
133 return "Setup Phase";
134 case EP0_DATA_PHASE:
135 return "Data Phase";
136 case EP0_STATUS_PHASE:
137 return "Status Phase";
138 default:
139 return "UNKNOWN";
140 }
141}
142
143/**
144 * dwc3_gadget_event_string - returns event name
145 * @event: the event code
146 */
147static inline const char *
148dwc3_gadget_event_string(const struct dwc3_event_devt *event)
149{
150 static char str[256];
151 enum dwc3_link_state state = event->event_info & DWC3_LINK_STATE_MASK;
152
153 switch (event->type) {
154 case DWC3_DEVICE_EVENT_DISCONNECT:
155 sprintf(str, "Disconnect: [%s]",
156 dwc3_gadget_link_string(state));
157 break;
158 case DWC3_DEVICE_EVENT_RESET:
159 sprintf(str, "Reset [%s]", dwc3_gadget_link_string(state));
160 break;
161 case DWC3_DEVICE_EVENT_CONNECT_DONE:
162 sprintf(str, "Connection Done [%s]",
163 dwc3_gadget_link_string(state));
164 break;
165 case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
166 sprintf(str, "Link Change [%s]",
167 dwc3_gadget_link_string(state));
168 break;
169 case DWC3_DEVICE_EVENT_WAKEUP:
170 sprintf(str, "WakeUp [%s]", dwc3_gadget_link_string(state));
171 break;
172 case DWC3_DEVICE_EVENT_EOPF:
173 sprintf(str, "End-Of-Frame [%s]",
174 dwc3_gadget_link_string(state));
175 break;
176 case DWC3_DEVICE_EVENT_SOF:
177 sprintf(str, "Start-Of-Frame [%s]",
178 dwc3_gadget_link_string(state));
179 break;
180 case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
181 sprintf(str, "Erratic Error [%s]",
182 dwc3_gadget_link_string(state));
183 break;
184 case DWC3_DEVICE_EVENT_CMD_CMPL:
185 sprintf(str, "Command Complete [%s]",
186 dwc3_gadget_link_string(state));
187 break;
188 case DWC3_DEVICE_EVENT_OVERFLOW:
189 sprintf(str, "Overflow [%s]", dwc3_gadget_link_string(state));
190 break;
191 default:
192 sprintf(str, "UNKNOWN");
193 }
194
195 return str;
196}
197
198/**
199 * dwc3_ep_event_string - returns event name
200 * @event: then event code
201 */
202static inline const char *
203dwc3_ep_event_string(const struct dwc3_event_depevt *event, u32 ep0state)
204{
205 u8 epnum = event->endpoint_number;
206 static char str[256];
207 size_t len;
208 int status;
209 int ret;
210
211 ret = sprintf(str, "ep%d%s: ", epnum >> 1,
212 (epnum & 1) ? "in" : "out");
213 if (ret < 0)
214 return "UNKNOWN";
215
216 switch (event->endpoint_event) {
217 case DWC3_DEPEVT_XFERCOMPLETE:
218 strcat(str, "Transfer Complete");
219 len = strlen(str);
220
221 if (epnum <= 1)
222 sprintf(str + len, " [%s]", dwc3_ep0_state_string(ep0state));
223 break;
224 case DWC3_DEPEVT_XFERINPROGRESS:
225 strcat(str, "Transfer In-Progress");
226 break;
227 case DWC3_DEPEVT_XFERNOTREADY:
228 strcat(str, "Transfer Not Ready");
229 status = event->status & DEPEVT_STATUS_TRANSFER_ACTIVE;
230 strcat(str, status ? " (Active)" : " (Not Active)");
231
232 /* Control Endpoints */
233 if (epnum <= 1) {
234 int phase = DEPEVT_STATUS_CONTROL_PHASE(event->status);
235
236 switch (phase) {
237 case DEPEVT_STATUS_CONTROL_DATA:
238 strcat(str, " [Data Phase]");
239 break;
240 case DEPEVT_STATUS_CONTROL_STATUS:
241 strcat(str, " [Status Phase]");
242 }
243 }
244 break;
245 case DWC3_DEPEVT_RXTXFIFOEVT:
246 strcat(str, "FIFO");
247 break;
248 case DWC3_DEPEVT_STREAMEVT:
249 status = event->status;
250
251 switch (status) {
252 case DEPEVT_STREAMEVT_FOUND:
253 sprintf(str + ret, " Stream %d Found",
254 event->parameters);
255 break;
256 case DEPEVT_STREAMEVT_NOTFOUND:
257 default:
258 strcat(str, " Stream Not Found");
259 break;
260 }
261
262 break;
263 case DWC3_DEPEVT_EPCMDCMPLT:
264 strcat(str, "Endpoint Command Complete");
265 break;
266 default:
267 sprintf(str, "UNKNOWN");
268 }
269
270 return str;
271}
272
273/**
274 * dwc3_gadget_event_type_string - return event name
275 * @event: the event code
276 */
277static inline const char *dwc3_gadget_event_type_string(u8 event)
278{
279 switch (event) {
280 case DWC3_DEVICE_EVENT_DISCONNECT:
281 return "Disconnect";
282 case DWC3_DEVICE_EVENT_RESET:
283 return "Reset";
284 case DWC3_DEVICE_EVENT_CONNECT_DONE:
285 return "Connect Done";
286 case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
287 return "Link Status Change";
288 case DWC3_DEVICE_EVENT_WAKEUP:
289 return "Wake-Up";
290 case DWC3_DEVICE_EVENT_HIBER_REQ:
291 return "Hibernation";
292 case DWC3_DEVICE_EVENT_EOPF:
293 return "End of Periodic Frame";
294 case DWC3_DEVICE_EVENT_SOF:
295 return "Start of Frame";
296 case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
297 return "Erratic Error";
298 case DWC3_DEVICE_EVENT_CMD_CMPL:
299 return "Command Complete";
300 case DWC3_DEVICE_EVENT_OVERFLOW:
301 return "Overflow";
302 default:
303 return "UNKNOWN";
304 }
305}
306
307static inline const char *dwc3_decode_event(u32 event, u32 ep0state)
308{
309 const union dwc3_event evt = (union dwc3_event) event;
310
311 if (evt.type.is_devspec)
312 return dwc3_gadget_event_string(&evt.devt);
313 else
314 return dwc3_ep_event_string(&evt.depevt, ep0state);
315}
316
317static inline const char *dwc3_ep_cmd_status_string(int status)
318{
319 switch (status) {
320 case -ETIMEDOUT:
321 return "Timed Out";
322 case 0:
323 return "Successful";
324 case DEPEVT_TRANSFER_NO_RESOURCE:
325 return "No Resource";
326 case DEPEVT_TRANSFER_BUS_EXPIRY:
327 return "Bus Expiry";
328 default:
329 return "UNKNOWN";
330 }
331}
332
333static inline const char *dwc3_gadget_generic_cmd_status_string(int status)
334{
335 switch (status) {
336 case -ETIMEDOUT:
337 return "Timed Out";
338 case 0:
339 return "Successful";
340 case 1:
341 return "Error";
342 default:
343 return "UNKNOWN";
344 }
345}
346
347
348#ifdef CONFIG_DEBUG_FS
349extern void dwc3_debugfs_init(struct dwc3 *);
350extern void dwc3_debugfs_exit(struct dwc3 *);
351#else
352static inline void dwc3_debugfs_init(struct dwc3 *d)
353{ }
354static inline void dwc3_debugfs_exit(struct dwc3 *d)
355{ }
356#endif
357#endif /* __DWC3_DEBUG_H */