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72246da4 FB |
1 | /** |
2 | * debugfs.c - DesignWare USB3 DRD Controller DebugFS file | |
3 | * | |
4 | * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com | |
72246da4 FB |
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 | #include <linux/kernel.h> | |
40 | #include <linux/slab.h> | |
41 | #include <linux/ptrace.h> | |
42 | #include <linux/types.h> | |
43 | #include <linux/spinlock.h> | |
44 | #include <linux/debugfs.h> | |
45 | #include <linux/seq_file.h> | |
46 | #include <linux/delay.h> | |
25b8ff68 | 47 | #include <linux/uaccess.h> |
72246da4 FB |
48 | |
49 | #include "core.h" | |
50 | #include "gadget.h" | |
51 | #include "io.h" | |
8becf270 | 52 | #include "debug.h" |
72246da4 FB |
53 | |
54 | struct dwc3_register { | |
55 | const char *name; | |
56 | u32 offset; | |
57 | }; | |
58 | ||
59 | #define dump_register(nm) \ | |
60 | { \ | |
61 | .name = __stringify(nm), \ | |
62 | .offset = DWC3_ ##nm, \ | |
63 | } | |
64 | ||
65 | static const struct dwc3_register dwc3_regs[] = { | |
66 | dump_register(GSBUSCFG0), | |
67 | dump_register(GSBUSCFG1), | |
68 | dump_register(GTXTHRCFG), | |
69 | dump_register(GRXTHRCFG), | |
70 | dump_register(GCTL), | |
71 | dump_register(GEVTEN), | |
72 | dump_register(GSTS), | |
73 | dump_register(GSNPSID), | |
74 | dump_register(GGPIO), | |
75 | dump_register(GUID), | |
76 | dump_register(GUCTL), | |
77 | dump_register(GBUSERRADDR0), | |
78 | dump_register(GBUSERRADDR1), | |
79 | dump_register(GPRTBIMAP0), | |
80 | dump_register(GPRTBIMAP1), | |
81 | dump_register(GHWPARAMS0), | |
82 | dump_register(GHWPARAMS1), | |
83 | dump_register(GHWPARAMS2), | |
84 | dump_register(GHWPARAMS3), | |
85 | dump_register(GHWPARAMS4), | |
86 | dump_register(GHWPARAMS5), | |
87 | dump_register(GHWPARAMS6), | |
88 | dump_register(GHWPARAMS7), | |
89 | dump_register(GDBGFIFOSPACE), | |
90 | dump_register(GDBGLTSSM), | |
91 | dump_register(GPRTBIMAP_HS0), | |
92 | dump_register(GPRTBIMAP_HS1), | |
93 | dump_register(GPRTBIMAP_FS0), | |
94 | dump_register(GPRTBIMAP_FS1), | |
95 | ||
96 | dump_register(GUSB2PHYCFG(0)), | |
97 | dump_register(GUSB2PHYCFG(1)), | |
98 | dump_register(GUSB2PHYCFG(2)), | |
99 | dump_register(GUSB2PHYCFG(3)), | |
100 | dump_register(GUSB2PHYCFG(4)), | |
101 | dump_register(GUSB2PHYCFG(5)), | |
102 | dump_register(GUSB2PHYCFG(6)), | |
103 | dump_register(GUSB2PHYCFG(7)), | |
104 | dump_register(GUSB2PHYCFG(8)), | |
105 | dump_register(GUSB2PHYCFG(9)), | |
106 | dump_register(GUSB2PHYCFG(10)), | |
107 | dump_register(GUSB2PHYCFG(11)), | |
108 | dump_register(GUSB2PHYCFG(12)), | |
109 | dump_register(GUSB2PHYCFG(13)), | |
110 | dump_register(GUSB2PHYCFG(14)), | |
111 | dump_register(GUSB2PHYCFG(15)), | |
112 | ||
113 | dump_register(GUSB2I2CCTL(0)), | |
114 | dump_register(GUSB2I2CCTL(1)), | |
115 | dump_register(GUSB2I2CCTL(2)), | |
116 | dump_register(GUSB2I2CCTL(3)), | |
117 | dump_register(GUSB2I2CCTL(4)), | |
118 | dump_register(GUSB2I2CCTL(5)), | |
119 | dump_register(GUSB2I2CCTL(6)), | |
120 | dump_register(GUSB2I2CCTL(7)), | |
121 | dump_register(GUSB2I2CCTL(8)), | |
122 | dump_register(GUSB2I2CCTL(9)), | |
123 | dump_register(GUSB2I2CCTL(10)), | |
124 | dump_register(GUSB2I2CCTL(11)), | |
125 | dump_register(GUSB2I2CCTL(12)), | |
126 | dump_register(GUSB2I2CCTL(13)), | |
127 | dump_register(GUSB2I2CCTL(14)), | |
128 | dump_register(GUSB2I2CCTL(15)), | |
129 | ||
130 | dump_register(GUSB2PHYACC(0)), | |
131 | dump_register(GUSB2PHYACC(1)), | |
132 | dump_register(GUSB2PHYACC(2)), | |
133 | dump_register(GUSB2PHYACC(3)), | |
134 | dump_register(GUSB2PHYACC(4)), | |
135 | dump_register(GUSB2PHYACC(5)), | |
136 | dump_register(GUSB2PHYACC(6)), | |
137 | dump_register(GUSB2PHYACC(7)), | |
138 | dump_register(GUSB2PHYACC(8)), | |
139 | dump_register(GUSB2PHYACC(9)), | |
140 | dump_register(GUSB2PHYACC(10)), | |
141 | dump_register(GUSB2PHYACC(11)), | |
142 | dump_register(GUSB2PHYACC(12)), | |
143 | dump_register(GUSB2PHYACC(13)), | |
144 | dump_register(GUSB2PHYACC(14)), | |
145 | dump_register(GUSB2PHYACC(15)), | |
146 | ||
147 | dump_register(GUSB3PIPECTL(0)), | |
148 | dump_register(GUSB3PIPECTL(1)), | |
149 | dump_register(GUSB3PIPECTL(2)), | |
150 | dump_register(GUSB3PIPECTL(3)), | |
151 | dump_register(GUSB3PIPECTL(4)), | |
152 | dump_register(GUSB3PIPECTL(5)), | |
153 | dump_register(GUSB3PIPECTL(6)), | |
154 | dump_register(GUSB3PIPECTL(7)), | |
155 | dump_register(GUSB3PIPECTL(8)), | |
156 | dump_register(GUSB3PIPECTL(9)), | |
157 | dump_register(GUSB3PIPECTL(10)), | |
158 | dump_register(GUSB3PIPECTL(11)), | |
159 | dump_register(GUSB3PIPECTL(12)), | |
160 | dump_register(GUSB3PIPECTL(13)), | |
161 | dump_register(GUSB3PIPECTL(14)), | |
162 | dump_register(GUSB3PIPECTL(15)), | |
163 | ||
164 | dump_register(GTXFIFOSIZ(0)), | |
165 | dump_register(GTXFIFOSIZ(1)), | |
166 | dump_register(GTXFIFOSIZ(2)), | |
167 | dump_register(GTXFIFOSIZ(3)), | |
168 | dump_register(GTXFIFOSIZ(4)), | |
169 | dump_register(GTXFIFOSIZ(5)), | |
170 | dump_register(GTXFIFOSIZ(6)), | |
171 | dump_register(GTXFIFOSIZ(7)), | |
172 | dump_register(GTXFIFOSIZ(8)), | |
173 | dump_register(GTXFIFOSIZ(9)), | |
174 | dump_register(GTXFIFOSIZ(10)), | |
175 | dump_register(GTXFIFOSIZ(11)), | |
176 | dump_register(GTXFIFOSIZ(12)), | |
177 | dump_register(GTXFIFOSIZ(13)), | |
178 | dump_register(GTXFIFOSIZ(14)), | |
179 | dump_register(GTXFIFOSIZ(15)), | |
180 | dump_register(GTXFIFOSIZ(16)), | |
181 | dump_register(GTXFIFOSIZ(17)), | |
182 | dump_register(GTXFIFOSIZ(18)), | |
183 | dump_register(GTXFIFOSIZ(19)), | |
184 | dump_register(GTXFIFOSIZ(20)), | |
185 | dump_register(GTXFIFOSIZ(21)), | |
186 | dump_register(GTXFIFOSIZ(22)), | |
187 | dump_register(GTXFIFOSIZ(23)), | |
188 | dump_register(GTXFIFOSIZ(24)), | |
189 | dump_register(GTXFIFOSIZ(25)), | |
190 | dump_register(GTXFIFOSIZ(26)), | |
191 | dump_register(GTXFIFOSIZ(27)), | |
192 | dump_register(GTXFIFOSIZ(28)), | |
193 | dump_register(GTXFIFOSIZ(29)), | |
194 | dump_register(GTXFIFOSIZ(30)), | |
195 | dump_register(GTXFIFOSIZ(31)), | |
196 | ||
197 | dump_register(GRXFIFOSIZ(0)), | |
198 | dump_register(GRXFIFOSIZ(1)), | |
199 | dump_register(GRXFIFOSIZ(2)), | |
200 | dump_register(GRXFIFOSIZ(3)), | |
201 | dump_register(GRXFIFOSIZ(4)), | |
202 | dump_register(GRXFIFOSIZ(5)), | |
203 | dump_register(GRXFIFOSIZ(6)), | |
204 | dump_register(GRXFIFOSIZ(7)), | |
205 | dump_register(GRXFIFOSIZ(8)), | |
206 | dump_register(GRXFIFOSIZ(9)), | |
207 | dump_register(GRXFIFOSIZ(10)), | |
208 | dump_register(GRXFIFOSIZ(11)), | |
209 | dump_register(GRXFIFOSIZ(12)), | |
210 | dump_register(GRXFIFOSIZ(13)), | |
211 | dump_register(GRXFIFOSIZ(14)), | |
212 | dump_register(GRXFIFOSIZ(15)), | |
213 | dump_register(GRXFIFOSIZ(16)), | |
214 | dump_register(GRXFIFOSIZ(17)), | |
215 | dump_register(GRXFIFOSIZ(18)), | |
216 | dump_register(GRXFIFOSIZ(19)), | |
217 | dump_register(GRXFIFOSIZ(20)), | |
218 | dump_register(GRXFIFOSIZ(21)), | |
219 | dump_register(GRXFIFOSIZ(22)), | |
220 | dump_register(GRXFIFOSIZ(23)), | |
221 | dump_register(GRXFIFOSIZ(24)), | |
222 | dump_register(GRXFIFOSIZ(25)), | |
223 | dump_register(GRXFIFOSIZ(26)), | |
224 | dump_register(GRXFIFOSIZ(27)), | |
225 | dump_register(GRXFIFOSIZ(28)), | |
226 | dump_register(GRXFIFOSIZ(29)), | |
227 | dump_register(GRXFIFOSIZ(30)), | |
228 | dump_register(GRXFIFOSIZ(31)), | |
229 | ||
230 | dump_register(GEVNTADRLO(0)), | |
231 | dump_register(GEVNTADRHI(0)), | |
232 | dump_register(GEVNTSIZ(0)), | |
233 | dump_register(GEVNTCOUNT(0)), | |
234 | ||
235 | dump_register(GHWPARAMS8), | |
236 | dump_register(DCFG), | |
237 | dump_register(DCTL), | |
238 | dump_register(DEVTEN), | |
239 | dump_register(DSTS), | |
240 | dump_register(DGCMDPAR), | |
241 | dump_register(DGCMD), | |
242 | dump_register(DALEPENA), | |
243 | ||
244 | dump_register(DEPCMDPAR2(0)), | |
245 | dump_register(DEPCMDPAR2(1)), | |
246 | dump_register(DEPCMDPAR2(2)), | |
247 | dump_register(DEPCMDPAR2(3)), | |
248 | dump_register(DEPCMDPAR2(4)), | |
249 | dump_register(DEPCMDPAR2(5)), | |
250 | dump_register(DEPCMDPAR2(6)), | |
251 | dump_register(DEPCMDPAR2(7)), | |
252 | dump_register(DEPCMDPAR2(8)), | |
253 | dump_register(DEPCMDPAR2(9)), | |
254 | dump_register(DEPCMDPAR2(10)), | |
255 | dump_register(DEPCMDPAR2(11)), | |
256 | dump_register(DEPCMDPAR2(12)), | |
257 | dump_register(DEPCMDPAR2(13)), | |
258 | dump_register(DEPCMDPAR2(14)), | |
259 | dump_register(DEPCMDPAR2(15)), | |
260 | dump_register(DEPCMDPAR2(16)), | |
261 | dump_register(DEPCMDPAR2(17)), | |
262 | dump_register(DEPCMDPAR2(18)), | |
263 | dump_register(DEPCMDPAR2(19)), | |
264 | dump_register(DEPCMDPAR2(20)), | |
265 | dump_register(DEPCMDPAR2(21)), | |
266 | dump_register(DEPCMDPAR2(22)), | |
267 | dump_register(DEPCMDPAR2(23)), | |
268 | dump_register(DEPCMDPAR2(24)), | |
269 | dump_register(DEPCMDPAR2(25)), | |
270 | dump_register(DEPCMDPAR2(26)), | |
271 | dump_register(DEPCMDPAR2(27)), | |
272 | dump_register(DEPCMDPAR2(28)), | |
273 | dump_register(DEPCMDPAR2(29)), | |
274 | dump_register(DEPCMDPAR2(30)), | |
275 | dump_register(DEPCMDPAR2(31)), | |
276 | ||
277 | dump_register(DEPCMDPAR1(0)), | |
278 | dump_register(DEPCMDPAR1(1)), | |
279 | dump_register(DEPCMDPAR1(2)), | |
280 | dump_register(DEPCMDPAR1(3)), | |
281 | dump_register(DEPCMDPAR1(4)), | |
282 | dump_register(DEPCMDPAR1(5)), | |
283 | dump_register(DEPCMDPAR1(6)), | |
284 | dump_register(DEPCMDPAR1(7)), | |
285 | dump_register(DEPCMDPAR1(8)), | |
286 | dump_register(DEPCMDPAR1(9)), | |
287 | dump_register(DEPCMDPAR1(10)), | |
288 | dump_register(DEPCMDPAR1(11)), | |
289 | dump_register(DEPCMDPAR1(12)), | |
290 | dump_register(DEPCMDPAR1(13)), | |
291 | dump_register(DEPCMDPAR1(14)), | |
292 | dump_register(DEPCMDPAR1(15)), | |
293 | dump_register(DEPCMDPAR1(16)), | |
294 | dump_register(DEPCMDPAR1(17)), | |
295 | dump_register(DEPCMDPAR1(18)), | |
296 | dump_register(DEPCMDPAR1(19)), | |
297 | dump_register(DEPCMDPAR1(20)), | |
298 | dump_register(DEPCMDPAR1(21)), | |
299 | dump_register(DEPCMDPAR1(22)), | |
300 | dump_register(DEPCMDPAR1(23)), | |
301 | dump_register(DEPCMDPAR1(24)), | |
302 | dump_register(DEPCMDPAR1(25)), | |
303 | dump_register(DEPCMDPAR1(26)), | |
304 | dump_register(DEPCMDPAR1(27)), | |
305 | dump_register(DEPCMDPAR1(28)), | |
306 | dump_register(DEPCMDPAR1(29)), | |
307 | dump_register(DEPCMDPAR1(30)), | |
308 | dump_register(DEPCMDPAR1(31)), | |
309 | ||
310 | dump_register(DEPCMDPAR0(0)), | |
311 | dump_register(DEPCMDPAR0(1)), | |
312 | dump_register(DEPCMDPAR0(2)), | |
313 | dump_register(DEPCMDPAR0(3)), | |
314 | dump_register(DEPCMDPAR0(4)), | |
315 | dump_register(DEPCMDPAR0(5)), | |
316 | dump_register(DEPCMDPAR0(6)), | |
317 | dump_register(DEPCMDPAR0(7)), | |
318 | dump_register(DEPCMDPAR0(8)), | |
319 | dump_register(DEPCMDPAR0(9)), | |
320 | dump_register(DEPCMDPAR0(10)), | |
321 | dump_register(DEPCMDPAR0(11)), | |
322 | dump_register(DEPCMDPAR0(12)), | |
323 | dump_register(DEPCMDPAR0(13)), | |
324 | dump_register(DEPCMDPAR0(14)), | |
325 | dump_register(DEPCMDPAR0(15)), | |
326 | dump_register(DEPCMDPAR0(16)), | |
327 | dump_register(DEPCMDPAR0(17)), | |
328 | dump_register(DEPCMDPAR0(18)), | |
329 | dump_register(DEPCMDPAR0(19)), | |
330 | dump_register(DEPCMDPAR0(20)), | |
331 | dump_register(DEPCMDPAR0(21)), | |
332 | dump_register(DEPCMDPAR0(22)), | |
333 | dump_register(DEPCMDPAR0(23)), | |
334 | dump_register(DEPCMDPAR0(24)), | |
335 | dump_register(DEPCMDPAR0(25)), | |
336 | dump_register(DEPCMDPAR0(26)), | |
337 | dump_register(DEPCMDPAR0(27)), | |
338 | dump_register(DEPCMDPAR0(28)), | |
339 | dump_register(DEPCMDPAR0(29)), | |
340 | dump_register(DEPCMDPAR0(30)), | |
341 | dump_register(DEPCMDPAR0(31)), | |
342 | ||
343 | dump_register(DEPCMD(0)), | |
344 | dump_register(DEPCMD(1)), | |
345 | dump_register(DEPCMD(2)), | |
346 | dump_register(DEPCMD(3)), | |
347 | dump_register(DEPCMD(4)), | |
348 | dump_register(DEPCMD(5)), | |
349 | dump_register(DEPCMD(6)), | |
350 | dump_register(DEPCMD(7)), | |
351 | dump_register(DEPCMD(8)), | |
352 | dump_register(DEPCMD(9)), | |
353 | dump_register(DEPCMD(10)), | |
354 | dump_register(DEPCMD(11)), | |
355 | dump_register(DEPCMD(12)), | |
356 | dump_register(DEPCMD(13)), | |
357 | dump_register(DEPCMD(14)), | |
358 | dump_register(DEPCMD(15)), | |
359 | dump_register(DEPCMD(16)), | |
360 | dump_register(DEPCMD(17)), | |
361 | dump_register(DEPCMD(18)), | |
362 | dump_register(DEPCMD(19)), | |
363 | dump_register(DEPCMD(20)), | |
364 | dump_register(DEPCMD(21)), | |
365 | dump_register(DEPCMD(22)), | |
366 | dump_register(DEPCMD(23)), | |
367 | dump_register(DEPCMD(24)), | |
368 | dump_register(DEPCMD(25)), | |
369 | dump_register(DEPCMD(26)), | |
370 | dump_register(DEPCMD(27)), | |
371 | dump_register(DEPCMD(28)), | |
372 | dump_register(DEPCMD(29)), | |
373 | dump_register(DEPCMD(30)), | |
374 | dump_register(DEPCMD(31)), | |
375 | ||
376 | dump_register(OCFG), | |
377 | dump_register(OCTL), | |
378 | dump_register(OEVTEN), | |
379 | dump_register(OSTS), | |
380 | }; | |
381 | ||
382 | static int dwc3_regdump_show(struct seq_file *s, void *unused) | |
383 | { | |
384 | struct dwc3 *dwc = s->private; | |
385 | int i; | |
386 | ||
387 | seq_printf(s, "DesignWare USB3 Core Register Dump\n"); | |
388 | ||
389 | for (i = 0; i < ARRAY_SIZE(dwc3_regs); i++) { | |
390 | seq_printf(s, "%-20s : %08x\n", dwc3_regs[i].name, | |
391 | dwc3_readl(dwc->regs, dwc3_regs[i].offset)); | |
392 | } | |
393 | ||
394 | return 0; | |
395 | } | |
396 | ||
397 | static int dwc3_regdump_open(struct inode *inode, struct file *file) | |
398 | { | |
399 | return single_open(file, dwc3_regdump_show, inode->i_private); | |
400 | } | |
401 | ||
402 | static const struct file_operations dwc3_regdump_fops = { | |
403 | .open = dwc3_regdump_open, | |
404 | .read = seq_read, | |
405 | .release = single_release, | |
406 | }; | |
407 | ||
0b9fe32d FB |
408 | static int dwc3_mode_show(struct seq_file *s, void *unused) |
409 | { | |
410 | struct dwc3 *dwc = s->private; | |
411 | unsigned long flags; | |
412 | u32 reg; | |
413 | ||
414 | spin_lock_irqsave(&dwc->lock, flags); | |
415 | reg = dwc3_readl(dwc->regs, DWC3_GCTL); | |
416 | spin_unlock_irqrestore(&dwc->lock, flags); | |
417 | ||
418 | switch (DWC3_GCTL_PRTCAP(reg)) { | |
419 | case DWC3_GCTL_PRTCAP_HOST: | |
420 | seq_printf(s, "host\n"); | |
421 | break; | |
422 | case DWC3_GCTL_PRTCAP_DEVICE: | |
423 | seq_printf(s, "device\n"); | |
424 | break; | |
425 | case DWC3_GCTL_PRTCAP_OTG: | |
426 | seq_printf(s, "OTG\n"); | |
427 | break; | |
428 | default: | |
429 | seq_printf(s, "UNKNOWN %08x\n", DWC3_GCTL_PRTCAP(reg)); | |
430 | } | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
435 | static int dwc3_mode_open(struct inode *inode, struct file *file) | |
436 | { | |
437 | return single_open(file, dwc3_mode_show, inode->i_private); | |
438 | } | |
439 | ||
440 | static ssize_t dwc3_mode_write(struct file *file, | |
441 | const char __user *ubuf, size_t count, loff_t *ppos) | |
442 | { | |
443 | struct seq_file *s = file->private_data; | |
444 | struct dwc3 *dwc = s->private; | |
445 | unsigned long flags; | |
3140e8cb | 446 | u32 mode = 0; |
0b9fe32d FB |
447 | char buf[32]; |
448 | ||
449 | if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) | |
450 | return -EFAULT; | |
451 | ||
0b9fe32d | 452 | if (!strncmp(buf, "host", 4)) |
3140e8cb | 453 | mode |= DWC3_GCTL_PRTCAP_HOST; |
0b9fe32d FB |
454 | |
455 | if (!strncmp(buf, "device", 6)) | |
3140e8cb | 456 | mode |= DWC3_GCTL_PRTCAP_DEVICE; |
0b9fe32d FB |
457 | |
458 | if (!strncmp(buf, "otg", 3)) | |
3140e8cb | 459 | mode |= DWC3_GCTL_PRTCAP_OTG; |
0b9fe32d | 460 | |
3140e8cb SAS |
461 | if (mode) { |
462 | spin_lock_irqsave(&dwc->lock, flags); | |
463 | dwc3_set_mode(dwc, mode); | |
464 | spin_unlock_irqrestore(&dwc->lock, flags); | |
465 | } | |
0b9fe32d FB |
466 | return count; |
467 | } | |
468 | ||
469 | static const struct file_operations dwc3_mode_fops = { | |
470 | .open = dwc3_mode_open, | |
471 | .write = dwc3_mode_write, | |
472 | .read = seq_read, | |
473 | .llseek = seq_lseek, | |
474 | .release = single_release, | |
475 | }; | |
476 | ||
72246da4 FB |
477 | int __devinit dwc3_debugfs_init(struct dwc3 *dwc) |
478 | { | |
479 | struct dentry *root; | |
480 | struct dentry *file; | |
481 | int ret; | |
482 | ||
483 | root = debugfs_create_dir(dev_name(dwc->dev), NULL); | |
25b8ff68 | 484 | if (IS_ERR(root)) { |
72246da4 FB |
485 | ret = PTR_ERR(root); |
486 | goto err0; | |
487 | } | |
488 | ||
489 | dwc->root = root; | |
490 | ||
491 | file = debugfs_create_file("regdump", S_IRUGO, root, dwc, | |
492 | &dwc3_regdump_fops); | |
493 | if (IS_ERR(file)) { | |
494 | ret = PTR_ERR(file); | |
495 | goto err1; | |
496 | } | |
0b9fe32d FB |
497 | |
498 | file = debugfs_create_file("mode", S_IRUGO | S_IWUSR, root, | |
499 | dwc, &dwc3_mode_fops); | |
500 | if (IS_ERR(file)) { | |
501 | ret = PTR_ERR(file); | |
502 | goto err1; | |
503 | } | |
504 | ||
72246da4 FB |
505 | return 0; |
506 | ||
507 | err1: | |
508 | debugfs_remove_recursive(root); | |
509 | ||
510 | err0: | |
511 | return ret; | |
512 | } | |
513 | ||
514 | void __devexit dwc3_debugfs_exit(struct dwc3 *dwc) | |
515 | { | |
516 | debugfs_remove_recursive(dwc->root); | |
517 | dwc->root = NULL; | |
518 | } |