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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 | * | |
5945f789 FB |
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. | |
72246da4 | 12 | * |
5945f789 FB |
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. | |
72246da4 FB |
17 | */ |
18 | ||
19 | #include <linux/kernel.h> | |
20 | #include <linux/slab.h> | |
21 | #include <linux/ptrace.h> | |
22 | #include <linux/types.h> | |
23 | #include <linux/spinlock.h> | |
24 | #include <linux/debugfs.h> | |
25 | #include <linux/seq_file.h> | |
26 | #include <linux/delay.h> | |
25b8ff68 | 27 | #include <linux/uaccess.h> |
72246da4 | 28 | |
080d921f FB |
29 | #include <linux/usb/ch9.h> |
30 | ||
72246da4 FB |
31 | #include "core.h" |
32 | #include "gadget.h" | |
33 | #include "io.h" | |
8becf270 | 34 | #include "debug.h" |
72246da4 | 35 | |
72246da4 FB |
36 | #define dump_register(nm) \ |
37 | { \ | |
38 | .name = __stringify(nm), \ | |
1604c1e7 | 39 | .offset = DWC3_ ##nm - DWC3_GLOBALS_REGS_START, \ |
72246da4 FB |
40 | } |
41 | ||
4ec0ddb1 | 42 | static const struct debugfs_reg32 dwc3_regs[] = { |
72246da4 FB |
43 | dump_register(GSBUSCFG0), |
44 | dump_register(GSBUSCFG1), | |
45 | dump_register(GTXTHRCFG), | |
46 | dump_register(GRXTHRCFG), | |
47 | dump_register(GCTL), | |
48 | dump_register(GEVTEN), | |
49 | dump_register(GSTS), | |
50 | dump_register(GSNPSID), | |
51 | dump_register(GGPIO), | |
52 | dump_register(GUID), | |
53 | dump_register(GUCTL), | |
54 | dump_register(GBUSERRADDR0), | |
55 | dump_register(GBUSERRADDR1), | |
56 | dump_register(GPRTBIMAP0), | |
57 | dump_register(GPRTBIMAP1), | |
58 | dump_register(GHWPARAMS0), | |
59 | dump_register(GHWPARAMS1), | |
60 | dump_register(GHWPARAMS2), | |
61 | dump_register(GHWPARAMS3), | |
62 | dump_register(GHWPARAMS4), | |
63 | dump_register(GHWPARAMS5), | |
64 | dump_register(GHWPARAMS6), | |
65 | dump_register(GHWPARAMS7), | |
66 | dump_register(GDBGFIFOSPACE), | |
67 | dump_register(GDBGLTSSM), | |
68 | dump_register(GPRTBIMAP_HS0), | |
69 | dump_register(GPRTBIMAP_HS1), | |
70 | dump_register(GPRTBIMAP_FS0), | |
71 | dump_register(GPRTBIMAP_FS1), | |
72 | ||
73 | dump_register(GUSB2PHYCFG(0)), | |
74 | dump_register(GUSB2PHYCFG(1)), | |
75 | dump_register(GUSB2PHYCFG(2)), | |
76 | dump_register(GUSB2PHYCFG(3)), | |
77 | dump_register(GUSB2PHYCFG(4)), | |
78 | dump_register(GUSB2PHYCFG(5)), | |
79 | dump_register(GUSB2PHYCFG(6)), | |
80 | dump_register(GUSB2PHYCFG(7)), | |
81 | dump_register(GUSB2PHYCFG(8)), | |
82 | dump_register(GUSB2PHYCFG(9)), | |
83 | dump_register(GUSB2PHYCFG(10)), | |
84 | dump_register(GUSB2PHYCFG(11)), | |
85 | dump_register(GUSB2PHYCFG(12)), | |
86 | dump_register(GUSB2PHYCFG(13)), | |
87 | dump_register(GUSB2PHYCFG(14)), | |
88 | dump_register(GUSB2PHYCFG(15)), | |
89 | ||
90 | dump_register(GUSB2I2CCTL(0)), | |
91 | dump_register(GUSB2I2CCTL(1)), | |
92 | dump_register(GUSB2I2CCTL(2)), | |
93 | dump_register(GUSB2I2CCTL(3)), | |
94 | dump_register(GUSB2I2CCTL(4)), | |
95 | dump_register(GUSB2I2CCTL(5)), | |
96 | dump_register(GUSB2I2CCTL(6)), | |
97 | dump_register(GUSB2I2CCTL(7)), | |
98 | dump_register(GUSB2I2CCTL(8)), | |
99 | dump_register(GUSB2I2CCTL(9)), | |
100 | dump_register(GUSB2I2CCTL(10)), | |
101 | dump_register(GUSB2I2CCTL(11)), | |
102 | dump_register(GUSB2I2CCTL(12)), | |
103 | dump_register(GUSB2I2CCTL(13)), | |
104 | dump_register(GUSB2I2CCTL(14)), | |
105 | dump_register(GUSB2I2CCTL(15)), | |
106 | ||
107 | dump_register(GUSB2PHYACC(0)), | |
108 | dump_register(GUSB2PHYACC(1)), | |
109 | dump_register(GUSB2PHYACC(2)), | |
110 | dump_register(GUSB2PHYACC(3)), | |
111 | dump_register(GUSB2PHYACC(4)), | |
112 | dump_register(GUSB2PHYACC(5)), | |
113 | dump_register(GUSB2PHYACC(6)), | |
114 | dump_register(GUSB2PHYACC(7)), | |
115 | dump_register(GUSB2PHYACC(8)), | |
116 | dump_register(GUSB2PHYACC(9)), | |
117 | dump_register(GUSB2PHYACC(10)), | |
118 | dump_register(GUSB2PHYACC(11)), | |
119 | dump_register(GUSB2PHYACC(12)), | |
120 | dump_register(GUSB2PHYACC(13)), | |
121 | dump_register(GUSB2PHYACC(14)), | |
122 | dump_register(GUSB2PHYACC(15)), | |
123 | ||
124 | dump_register(GUSB3PIPECTL(0)), | |
125 | dump_register(GUSB3PIPECTL(1)), | |
126 | dump_register(GUSB3PIPECTL(2)), | |
127 | dump_register(GUSB3PIPECTL(3)), | |
128 | dump_register(GUSB3PIPECTL(4)), | |
129 | dump_register(GUSB3PIPECTL(5)), | |
130 | dump_register(GUSB3PIPECTL(6)), | |
131 | dump_register(GUSB3PIPECTL(7)), | |
132 | dump_register(GUSB3PIPECTL(8)), | |
133 | dump_register(GUSB3PIPECTL(9)), | |
134 | dump_register(GUSB3PIPECTL(10)), | |
135 | dump_register(GUSB3PIPECTL(11)), | |
136 | dump_register(GUSB3PIPECTL(12)), | |
137 | dump_register(GUSB3PIPECTL(13)), | |
138 | dump_register(GUSB3PIPECTL(14)), | |
139 | dump_register(GUSB3PIPECTL(15)), | |
140 | ||
141 | dump_register(GTXFIFOSIZ(0)), | |
142 | dump_register(GTXFIFOSIZ(1)), | |
143 | dump_register(GTXFIFOSIZ(2)), | |
144 | dump_register(GTXFIFOSIZ(3)), | |
145 | dump_register(GTXFIFOSIZ(4)), | |
146 | dump_register(GTXFIFOSIZ(5)), | |
147 | dump_register(GTXFIFOSIZ(6)), | |
148 | dump_register(GTXFIFOSIZ(7)), | |
149 | dump_register(GTXFIFOSIZ(8)), | |
150 | dump_register(GTXFIFOSIZ(9)), | |
151 | dump_register(GTXFIFOSIZ(10)), | |
152 | dump_register(GTXFIFOSIZ(11)), | |
153 | dump_register(GTXFIFOSIZ(12)), | |
154 | dump_register(GTXFIFOSIZ(13)), | |
155 | dump_register(GTXFIFOSIZ(14)), | |
156 | dump_register(GTXFIFOSIZ(15)), | |
157 | dump_register(GTXFIFOSIZ(16)), | |
158 | dump_register(GTXFIFOSIZ(17)), | |
159 | dump_register(GTXFIFOSIZ(18)), | |
160 | dump_register(GTXFIFOSIZ(19)), | |
161 | dump_register(GTXFIFOSIZ(20)), | |
162 | dump_register(GTXFIFOSIZ(21)), | |
163 | dump_register(GTXFIFOSIZ(22)), | |
164 | dump_register(GTXFIFOSIZ(23)), | |
165 | dump_register(GTXFIFOSIZ(24)), | |
166 | dump_register(GTXFIFOSIZ(25)), | |
167 | dump_register(GTXFIFOSIZ(26)), | |
168 | dump_register(GTXFIFOSIZ(27)), | |
169 | dump_register(GTXFIFOSIZ(28)), | |
170 | dump_register(GTXFIFOSIZ(29)), | |
171 | dump_register(GTXFIFOSIZ(30)), | |
172 | dump_register(GTXFIFOSIZ(31)), | |
173 | ||
174 | dump_register(GRXFIFOSIZ(0)), | |
175 | dump_register(GRXFIFOSIZ(1)), | |
176 | dump_register(GRXFIFOSIZ(2)), | |
177 | dump_register(GRXFIFOSIZ(3)), | |
178 | dump_register(GRXFIFOSIZ(4)), | |
179 | dump_register(GRXFIFOSIZ(5)), | |
180 | dump_register(GRXFIFOSIZ(6)), | |
181 | dump_register(GRXFIFOSIZ(7)), | |
182 | dump_register(GRXFIFOSIZ(8)), | |
183 | dump_register(GRXFIFOSIZ(9)), | |
184 | dump_register(GRXFIFOSIZ(10)), | |
185 | dump_register(GRXFIFOSIZ(11)), | |
186 | dump_register(GRXFIFOSIZ(12)), | |
187 | dump_register(GRXFIFOSIZ(13)), | |
188 | dump_register(GRXFIFOSIZ(14)), | |
189 | dump_register(GRXFIFOSIZ(15)), | |
190 | dump_register(GRXFIFOSIZ(16)), | |
191 | dump_register(GRXFIFOSIZ(17)), | |
192 | dump_register(GRXFIFOSIZ(18)), | |
193 | dump_register(GRXFIFOSIZ(19)), | |
194 | dump_register(GRXFIFOSIZ(20)), | |
195 | dump_register(GRXFIFOSIZ(21)), | |
196 | dump_register(GRXFIFOSIZ(22)), | |
197 | dump_register(GRXFIFOSIZ(23)), | |
198 | dump_register(GRXFIFOSIZ(24)), | |
199 | dump_register(GRXFIFOSIZ(25)), | |
200 | dump_register(GRXFIFOSIZ(26)), | |
201 | dump_register(GRXFIFOSIZ(27)), | |
202 | dump_register(GRXFIFOSIZ(28)), | |
203 | dump_register(GRXFIFOSIZ(29)), | |
204 | dump_register(GRXFIFOSIZ(30)), | |
205 | dump_register(GRXFIFOSIZ(31)), | |
206 | ||
207 | dump_register(GEVNTADRLO(0)), | |
208 | dump_register(GEVNTADRHI(0)), | |
209 | dump_register(GEVNTSIZ(0)), | |
210 | dump_register(GEVNTCOUNT(0)), | |
211 | ||
212 | dump_register(GHWPARAMS8), | |
213 | dump_register(DCFG), | |
214 | dump_register(DCTL), | |
215 | dump_register(DEVTEN), | |
216 | dump_register(DSTS), | |
217 | dump_register(DGCMDPAR), | |
218 | dump_register(DGCMD), | |
219 | dump_register(DALEPENA), | |
220 | ||
221 | dump_register(DEPCMDPAR2(0)), | |
222 | dump_register(DEPCMDPAR2(1)), | |
223 | dump_register(DEPCMDPAR2(2)), | |
224 | dump_register(DEPCMDPAR2(3)), | |
225 | dump_register(DEPCMDPAR2(4)), | |
226 | dump_register(DEPCMDPAR2(5)), | |
227 | dump_register(DEPCMDPAR2(6)), | |
228 | dump_register(DEPCMDPAR2(7)), | |
229 | dump_register(DEPCMDPAR2(8)), | |
230 | dump_register(DEPCMDPAR2(9)), | |
231 | dump_register(DEPCMDPAR2(10)), | |
232 | dump_register(DEPCMDPAR2(11)), | |
233 | dump_register(DEPCMDPAR2(12)), | |
234 | dump_register(DEPCMDPAR2(13)), | |
235 | dump_register(DEPCMDPAR2(14)), | |
236 | dump_register(DEPCMDPAR2(15)), | |
237 | dump_register(DEPCMDPAR2(16)), | |
238 | dump_register(DEPCMDPAR2(17)), | |
239 | dump_register(DEPCMDPAR2(18)), | |
240 | dump_register(DEPCMDPAR2(19)), | |
241 | dump_register(DEPCMDPAR2(20)), | |
242 | dump_register(DEPCMDPAR2(21)), | |
243 | dump_register(DEPCMDPAR2(22)), | |
244 | dump_register(DEPCMDPAR2(23)), | |
245 | dump_register(DEPCMDPAR2(24)), | |
246 | dump_register(DEPCMDPAR2(25)), | |
247 | dump_register(DEPCMDPAR2(26)), | |
248 | dump_register(DEPCMDPAR2(27)), | |
249 | dump_register(DEPCMDPAR2(28)), | |
250 | dump_register(DEPCMDPAR2(29)), | |
251 | dump_register(DEPCMDPAR2(30)), | |
252 | dump_register(DEPCMDPAR2(31)), | |
253 | ||
254 | dump_register(DEPCMDPAR1(0)), | |
255 | dump_register(DEPCMDPAR1(1)), | |
256 | dump_register(DEPCMDPAR1(2)), | |
257 | dump_register(DEPCMDPAR1(3)), | |
258 | dump_register(DEPCMDPAR1(4)), | |
259 | dump_register(DEPCMDPAR1(5)), | |
260 | dump_register(DEPCMDPAR1(6)), | |
261 | dump_register(DEPCMDPAR1(7)), | |
262 | dump_register(DEPCMDPAR1(8)), | |
263 | dump_register(DEPCMDPAR1(9)), | |
264 | dump_register(DEPCMDPAR1(10)), | |
265 | dump_register(DEPCMDPAR1(11)), | |
266 | dump_register(DEPCMDPAR1(12)), | |
267 | dump_register(DEPCMDPAR1(13)), | |
268 | dump_register(DEPCMDPAR1(14)), | |
269 | dump_register(DEPCMDPAR1(15)), | |
270 | dump_register(DEPCMDPAR1(16)), | |
271 | dump_register(DEPCMDPAR1(17)), | |
272 | dump_register(DEPCMDPAR1(18)), | |
273 | dump_register(DEPCMDPAR1(19)), | |
274 | dump_register(DEPCMDPAR1(20)), | |
275 | dump_register(DEPCMDPAR1(21)), | |
276 | dump_register(DEPCMDPAR1(22)), | |
277 | dump_register(DEPCMDPAR1(23)), | |
278 | dump_register(DEPCMDPAR1(24)), | |
279 | dump_register(DEPCMDPAR1(25)), | |
280 | dump_register(DEPCMDPAR1(26)), | |
281 | dump_register(DEPCMDPAR1(27)), | |
282 | dump_register(DEPCMDPAR1(28)), | |
283 | dump_register(DEPCMDPAR1(29)), | |
284 | dump_register(DEPCMDPAR1(30)), | |
285 | dump_register(DEPCMDPAR1(31)), | |
286 | ||
287 | dump_register(DEPCMDPAR0(0)), | |
288 | dump_register(DEPCMDPAR0(1)), | |
289 | dump_register(DEPCMDPAR0(2)), | |
290 | dump_register(DEPCMDPAR0(3)), | |
291 | dump_register(DEPCMDPAR0(4)), | |
292 | dump_register(DEPCMDPAR0(5)), | |
293 | dump_register(DEPCMDPAR0(6)), | |
294 | dump_register(DEPCMDPAR0(7)), | |
295 | dump_register(DEPCMDPAR0(8)), | |
296 | dump_register(DEPCMDPAR0(9)), | |
297 | dump_register(DEPCMDPAR0(10)), | |
298 | dump_register(DEPCMDPAR0(11)), | |
299 | dump_register(DEPCMDPAR0(12)), | |
300 | dump_register(DEPCMDPAR0(13)), | |
301 | dump_register(DEPCMDPAR0(14)), | |
302 | dump_register(DEPCMDPAR0(15)), | |
303 | dump_register(DEPCMDPAR0(16)), | |
304 | dump_register(DEPCMDPAR0(17)), | |
305 | dump_register(DEPCMDPAR0(18)), | |
306 | dump_register(DEPCMDPAR0(19)), | |
307 | dump_register(DEPCMDPAR0(20)), | |
308 | dump_register(DEPCMDPAR0(21)), | |
309 | dump_register(DEPCMDPAR0(22)), | |
310 | dump_register(DEPCMDPAR0(23)), | |
311 | dump_register(DEPCMDPAR0(24)), | |
312 | dump_register(DEPCMDPAR0(25)), | |
313 | dump_register(DEPCMDPAR0(26)), | |
314 | dump_register(DEPCMDPAR0(27)), | |
315 | dump_register(DEPCMDPAR0(28)), | |
316 | dump_register(DEPCMDPAR0(29)), | |
317 | dump_register(DEPCMDPAR0(30)), | |
318 | dump_register(DEPCMDPAR0(31)), | |
319 | ||
320 | dump_register(DEPCMD(0)), | |
321 | dump_register(DEPCMD(1)), | |
322 | dump_register(DEPCMD(2)), | |
323 | dump_register(DEPCMD(3)), | |
324 | dump_register(DEPCMD(4)), | |
325 | dump_register(DEPCMD(5)), | |
326 | dump_register(DEPCMD(6)), | |
327 | dump_register(DEPCMD(7)), | |
328 | dump_register(DEPCMD(8)), | |
329 | dump_register(DEPCMD(9)), | |
330 | dump_register(DEPCMD(10)), | |
331 | dump_register(DEPCMD(11)), | |
332 | dump_register(DEPCMD(12)), | |
333 | dump_register(DEPCMD(13)), | |
334 | dump_register(DEPCMD(14)), | |
335 | dump_register(DEPCMD(15)), | |
336 | dump_register(DEPCMD(16)), | |
337 | dump_register(DEPCMD(17)), | |
338 | dump_register(DEPCMD(18)), | |
339 | dump_register(DEPCMD(19)), | |
340 | dump_register(DEPCMD(20)), | |
341 | dump_register(DEPCMD(21)), | |
342 | dump_register(DEPCMD(22)), | |
343 | dump_register(DEPCMD(23)), | |
344 | dump_register(DEPCMD(24)), | |
345 | dump_register(DEPCMD(25)), | |
346 | dump_register(DEPCMD(26)), | |
347 | dump_register(DEPCMD(27)), | |
348 | dump_register(DEPCMD(28)), | |
349 | dump_register(DEPCMD(29)), | |
350 | dump_register(DEPCMD(30)), | |
351 | dump_register(DEPCMD(31)), | |
352 | ||
353 | dump_register(OCFG), | |
354 | dump_register(OCTL), | |
d4436c3a | 355 | dump_register(OEVT), |
72246da4 FB |
356 | dump_register(OEVTEN), |
357 | dump_register(OSTS), | |
358 | }; | |
359 | ||
0b9fe32d FB |
360 | static int dwc3_mode_show(struct seq_file *s, void *unused) |
361 | { | |
362 | struct dwc3 *dwc = s->private; | |
363 | unsigned long flags; | |
364 | u32 reg; | |
365 | ||
366 | spin_lock_irqsave(&dwc->lock, flags); | |
367 | reg = dwc3_readl(dwc->regs, DWC3_GCTL); | |
368 | spin_unlock_irqrestore(&dwc->lock, flags); | |
369 | ||
370 | switch (DWC3_GCTL_PRTCAP(reg)) { | |
371 | case DWC3_GCTL_PRTCAP_HOST: | |
372 | seq_printf(s, "host\n"); | |
373 | break; | |
374 | case DWC3_GCTL_PRTCAP_DEVICE: | |
375 | seq_printf(s, "device\n"); | |
376 | break; | |
377 | case DWC3_GCTL_PRTCAP_OTG: | |
378 | seq_printf(s, "OTG\n"); | |
379 | break; | |
380 | default: | |
381 | seq_printf(s, "UNKNOWN %08x\n", DWC3_GCTL_PRTCAP(reg)); | |
382 | } | |
383 | ||
384 | return 0; | |
385 | } | |
386 | ||
387 | static int dwc3_mode_open(struct inode *inode, struct file *file) | |
388 | { | |
389 | return single_open(file, dwc3_mode_show, inode->i_private); | |
390 | } | |
391 | ||
392 | static ssize_t dwc3_mode_write(struct file *file, | |
393 | const char __user *ubuf, size_t count, loff_t *ppos) | |
394 | { | |
395 | struct seq_file *s = file->private_data; | |
396 | struct dwc3 *dwc = s->private; | |
397 | unsigned long flags; | |
3140e8cb | 398 | u32 mode = 0; |
0b9fe32d FB |
399 | char buf[32]; |
400 | ||
401 | if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) | |
402 | return -EFAULT; | |
403 | ||
0b9fe32d | 404 | if (!strncmp(buf, "host", 4)) |
3140e8cb | 405 | mode |= DWC3_GCTL_PRTCAP_HOST; |
0b9fe32d FB |
406 | |
407 | if (!strncmp(buf, "device", 6)) | |
3140e8cb | 408 | mode |= DWC3_GCTL_PRTCAP_DEVICE; |
0b9fe32d FB |
409 | |
410 | if (!strncmp(buf, "otg", 3)) | |
3140e8cb | 411 | mode |= DWC3_GCTL_PRTCAP_OTG; |
0b9fe32d | 412 | |
3140e8cb SAS |
413 | if (mode) { |
414 | spin_lock_irqsave(&dwc->lock, flags); | |
415 | dwc3_set_mode(dwc, mode); | |
416 | spin_unlock_irqrestore(&dwc->lock, flags); | |
417 | } | |
0b9fe32d FB |
418 | return count; |
419 | } | |
420 | ||
421 | static const struct file_operations dwc3_mode_fops = { | |
422 | .open = dwc3_mode_open, | |
423 | .write = dwc3_mode_write, | |
424 | .read = seq_read, | |
425 | .llseek = seq_lseek, | |
426 | .release = single_release, | |
427 | }; | |
428 | ||
080d921f FB |
429 | static int dwc3_testmode_show(struct seq_file *s, void *unused) |
430 | { | |
431 | struct dwc3 *dwc = s->private; | |
432 | unsigned long flags; | |
433 | u32 reg; | |
434 | ||
435 | spin_lock_irqsave(&dwc->lock, flags); | |
436 | reg = dwc3_readl(dwc->regs, DWC3_DCTL); | |
437 | reg &= DWC3_DCTL_TSTCTRL_MASK; | |
438 | reg >>= 1; | |
439 | spin_unlock_irqrestore(&dwc->lock, flags); | |
440 | ||
441 | switch (reg) { | |
442 | case 0: | |
443 | seq_printf(s, "no test\n"); | |
444 | break; | |
445 | case TEST_J: | |
446 | seq_printf(s, "test_j\n"); | |
447 | break; | |
448 | case TEST_K: | |
449 | seq_printf(s, "test_k\n"); | |
450 | break; | |
451 | case TEST_SE0_NAK: | |
452 | seq_printf(s, "test_se0_nak\n"); | |
453 | break; | |
454 | case TEST_PACKET: | |
455 | seq_printf(s, "test_packet\n"); | |
456 | break; | |
457 | case TEST_FORCE_EN: | |
458 | seq_printf(s, "test_force_enable\n"); | |
459 | break; | |
460 | default: | |
461 | seq_printf(s, "UNKNOWN %d\n", reg); | |
462 | } | |
463 | ||
464 | return 0; | |
465 | } | |
466 | ||
467 | static int dwc3_testmode_open(struct inode *inode, struct file *file) | |
468 | { | |
469 | return single_open(file, dwc3_testmode_show, inode->i_private); | |
470 | } | |
471 | ||
472 | static ssize_t dwc3_testmode_write(struct file *file, | |
473 | const char __user *ubuf, size_t count, loff_t *ppos) | |
474 | { | |
475 | struct seq_file *s = file->private_data; | |
476 | struct dwc3 *dwc = s->private; | |
477 | unsigned long flags; | |
478 | u32 testmode = 0; | |
479 | char buf[32]; | |
480 | ||
481 | if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) | |
482 | return -EFAULT; | |
483 | ||
484 | if (!strncmp(buf, "test_j", 6)) | |
485 | testmode = TEST_J; | |
486 | else if (!strncmp(buf, "test_k", 6)) | |
487 | testmode = TEST_K; | |
09072543 | 488 | else if (!strncmp(buf, "test_se0_nak", 12)) |
080d921f | 489 | testmode = TEST_SE0_NAK; |
09072543 | 490 | else if (!strncmp(buf, "test_packet", 11)) |
080d921f | 491 | testmode = TEST_PACKET; |
09072543 | 492 | else if (!strncmp(buf, "test_force_enable", 17)) |
080d921f FB |
493 | testmode = TEST_FORCE_EN; |
494 | else | |
495 | testmode = 0; | |
496 | ||
497 | spin_lock_irqsave(&dwc->lock, flags); | |
498 | dwc3_gadget_set_test_mode(dwc, testmode); | |
499 | spin_unlock_irqrestore(&dwc->lock, flags); | |
500 | ||
501 | return count; | |
502 | } | |
503 | ||
504 | static const struct file_operations dwc3_testmode_fops = { | |
505 | .open = dwc3_testmode_open, | |
506 | .write = dwc3_testmode_write, | |
507 | .read = seq_read, | |
508 | .llseek = seq_lseek, | |
509 | .release = single_release, | |
510 | }; | |
511 | ||
138801aa FB |
512 | static int dwc3_link_state_show(struct seq_file *s, void *unused) |
513 | { | |
514 | struct dwc3 *dwc = s->private; | |
515 | unsigned long flags; | |
516 | enum dwc3_link_state state; | |
517 | u32 reg; | |
518 | ||
519 | spin_lock_irqsave(&dwc->lock, flags); | |
520 | reg = dwc3_readl(dwc->regs, DWC3_DSTS); | |
521 | state = DWC3_DSTS_USBLNKST(reg); | |
522 | spin_unlock_irqrestore(&dwc->lock, flags); | |
523 | ||
524 | switch (state) { | |
525 | case DWC3_LINK_STATE_U0: | |
526 | seq_printf(s, "U0\n"); | |
527 | break; | |
528 | case DWC3_LINK_STATE_U1: | |
529 | seq_printf(s, "U1\n"); | |
530 | break; | |
531 | case DWC3_LINK_STATE_U2: | |
532 | seq_printf(s, "U2\n"); | |
533 | break; | |
534 | case DWC3_LINK_STATE_U3: | |
535 | seq_printf(s, "U3\n"); | |
536 | break; | |
537 | case DWC3_LINK_STATE_SS_DIS: | |
538 | seq_printf(s, "SS.Disabled\n"); | |
539 | break; | |
540 | case DWC3_LINK_STATE_RX_DET: | |
541 | seq_printf(s, "Rx.Detect\n"); | |
542 | break; | |
543 | case DWC3_LINK_STATE_SS_INACT: | |
544 | seq_printf(s, "SS.Inactive\n"); | |
545 | break; | |
546 | case DWC3_LINK_STATE_POLL: | |
547 | seq_printf(s, "Poll\n"); | |
548 | break; | |
549 | case DWC3_LINK_STATE_RECOV: | |
550 | seq_printf(s, "Recovery\n"); | |
551 | break; | |
552 | case DWC3_LINK_STATE_HRESET: | |
553 | seq_printf(s, "HRESET\n"); | |
554 | break; | |
555 | case DWC3_LINK_STATE_CMPLY: | |
556 | seq_printf(s, "Compliance\n"); | |
557 | break; | |
558 | case DWC3_LINK_STATE_LPBK: | |
559 | seq_printf(s, "Loopback\n"); | |
560 | break; | |
6b2a0eb8 FB |
561 | case DWC3_LINK_STATE_RESET: |
562 | seq_printf(s, "Reset\n"); | |
563 | break; | |
564 | case DWC3_LINK_STATE_RESUME: | |
565 | seq_printf(s, "Resume\n"); | |
566 | break; | |
138801aa | 567 | default: |
5b9ec339 | 568 | seq_printf(s, "UNKNOWN %d\n", state); |
138801aa FB |
569 | } |
570 | ||
571 | return 0; | |
572 | } | |
573 | ||
574 | static int dwc3_link_state_open(struct inode *inode, struct file *file) | |
575 | { | |
576 | return single_open(file, dwc3_link_state_show, inode->i_private); | |
577 | } | |
578 | ||
579 | static ssize_t dwc3_link_state_write(struct file *file, | |
580 | const char __user *ubuf, size_t count, loff_t *ppos) | |
581 | { | |
582 | struct seq_file *s = file->private_data; | |
583 | struct dwc3 *dwc = s->private; | |
584 | unsigned long flags; | |
585 | enum dwc3_link_state state = 0; | |
586 | char buf[32]; | |
587 | ||
588 | if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) | |
589 | return -EFAULT; | |
590 | ||
591 | if (!strncmp(buf, "SS.Disabled", 11)) | |
592 | state = DWC3_LINK_STATE_SS_DIS; | |
593 | else if (!strncmp(buf, "Rx.Detect", 9)) | |
594 | state = DWC3_LINK_STATE_RX_DET; | |
595 | else if (!strncmp(buf, "SS.Inactive", 11)) | |
596 | state = DWC3_LINK_STATE_SS_INACT; | |
597 | else if (!strncmp(buf, "Recovery", 8)) | |
598 | state = DWC3_LINK_STATE_RECOV; | |
599 | else if (!strncmp(buf, "Compliance", 10)) | |
600 | state = DWC3_LINK_STATE_CMPLY; | |
601 | else if (!strncmp(buf, "Loopback", 8)) | |
602 | state = DWC3_LINK_STATE_LPBK; | |
603 | else | |
604 | return -EINVAL; | |
605 | ||
606 | spin_lock_irqsave(&dwc->lock, flags); | |
607 | dwc3_gadget_set_link_state(dwc, state); | |
608 | spin_unlock_irqrestore(&dwc->lock, flags); | |
609 | ||
610 | return count; | |
611 | } | |
612 | ||
613 | static const struct file_operations dwc3_link_state_fops = { | |
614 | .open = dwc3_link_state_open, | |
615 | .write = dwc3_link_state_write, | |
616 | .read = seq_read, | |
617 | .llseek = seq_lseek, | |
618 | .release = single_release, | |
619 | }; | |
620 | ||
818ec3ab FB |
621 | struct dwc3_ep_file_map { |
622 | char name[25]; | |
623 | int (*show)(struct seq_file *s, void *unused); | |
624 | }; | |
625 | ||
626 | static int dwc3_tx_fifo_queue_show(struct seq_file *s, void *unused) | |
627 | { | |
628 | struct dwc3_ep *dep = s->private; | |
629 | struct dwc3 *dwc = dep->dwc; | |
630 | unsigned long flags; | |
631 | u32 val; | |
632 | ||
633 | spin_lock_irqsave(&dwc->lock, flags); | |
634 | val = dwc3_core_fifo_space(dep, DWC3_TXFIFOQ); | |
635 | seq_printf(s, "%u\n", val); | |
636 | spin_unlock_irqrestore(&dwc->lock, flags); | |
637 | ||
638 | return 0; | |
639 | } | |
640 | ||
641 | static int dwc3_rx_fifo_queue_show(struct seq_file *s, void *unused) | |
642 | { | |
643 | struct dwc3_ep *dep = s->private; | |
644 | struct dwc3 *dwc = dep->dwc; | |
645 | unsigned long flags; | |
646 | u32 val; | |
647 | ||
648 | spin_lock_irqsave(&dwc->lock, flags); | |
649 | val = dwc3_core_fifo_space(dep, DWC3_RXFIFOQ); | |
650 | seq_printf(s, "%u\n", val); | |
651 | spin_unlock_irqrestore(&dwc->lock, flags); | |
652 | ||
653 | return 0; | |
654 | } | |
655 | ||
656 | static int dwc3_tx_request_queue_show(struct seq_file *s, void *unused) | |
657 | { | |
658 | struct dwc3_ep *dep = s->private; | |
659 | struct dwc3 *dwc = dep->dwc; | |
660 | unsigned long flags; | |
661 | u32 val; | |
662 | ||
663 | spin_lock_irqsave(&dwc->lock, flags); | |
664 | val = dwc3_core_fifo_space(dep, DWC3_TXREQQ); | |
665 | seq_printf(s, "%u\n", val); | |
666 | spin_unlock_irqrestore(&dwc->lock, flags); | |
667 | ||
668 | return 0; | |
669 | } | |
670 | ||
671 | static int dwc3_rx_request_queue_show(struct seq_file *s, void *unused) | |
672 | { | |
673 | struct dwc3_ep *dep = s->private; | |
674 | struct dwc3 *dwc = dep->dwc; | |
675 | unsigned long flags; | |
676 | u32 val; | |
677 | ||
678 | spin_lock_irqsave(&dwc->lock, flags); | |
679 | val = dwc3_core_fifo_space(dep, DWC3_RXREQQ); | |
680 | seq_printf(s, "%u\n", val); | |
681 | spin_unlock_irqrestore(&dwc->lock, flags); | |
682 | ||
683 | return 0; | |
684 | } | |
685 | ||
686 | static int dwc3_rx_info_queue_show(struct seq_file *s, void *unused) | |
687 | { | |
688 | struct dwc3_ep *dep = s->private; | |
689 | struct dwc3 *dwc = dep->dwc; | |
690 | unsigned long flags; | |
691 | u32 val; | |
692 | ||
693 | spin_lock_irqsave(&dwc->lock, flags); | |
694 | val = dwc3_core_fifo_space(dep, DWC3_RXINFOQ); | |
695 | seq_printf(s, "%u\n", val); | |
696 | spin_unlock_irqrestore(&dwc->lock, flags); | |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
701 | static int dwc3_descriptor_fetch_queue_show(struct seq_file *s, void *unused) | |
702 | { | |
703 | struct dwc3_ep *dep = s->private; | |
704 | struct dwc3 *dwc = dep->dwc; | |
705 | unsigned long flags; | |
706 | u32 val; | |
707 | ||
708 | spin_lock_irqsave(&dwc->lock, flags); | |
709 | val = dwc3_core_fifo_space(dep, DWC3_DESCFETCHQ); | |
710 | seq_printf(s, "%u\n", val); | |
711 | spin_unlock_irqrestore(&dwc->lock, flags); | |
712 | ||
713 | return 0; | |
714 | } | |
715 | ||
716 | static int dwc3_event_queue_show(struct seq_file *s, void *unused) | |
717 | { | |
718 | struct dwc3_ep *dep = s->private; | |
719 | struct dwc3 *dwc = dep->dwc; | |
720 | unsigned long flags; | |
721 | u32 val; | |
722 | ||
723 | spin_lock_irqsave(&dwc->lock, flags); | |
724 | val = dwc3_core_fifo_space(dep, DWC3_EVENTQ); | |
725 | seq_printf(s, "%u\n", val); | |
726 | spin_unlock_irqrestore(&dwc->lock, flags); | |
727 | ||
728 | return 0; | |
729 | } | |
730 | ||
731 | static int dwc3_ep_transfer_type_show(struct seq_file *s, void *unused) | |
732 | { | |
733 | struct dwc3_ep *dep = s->private; | |
734 | struct dwc3 *dwc = dep->dwc; | |
735 | unsigned long flags; | |
736 | ||
737 | spin_lock_irqsave(&dwc->lock, flags); | |
738 | if (!(dep->flags & DWC3_EP_ENABLED) || | |
739 | !dep->endpoint.desc) { | |
740 | seq_printf(s, "--\n"); | |
741 | goto out; | |
742 | } | |
743 | ||
744 | switch (usb_endpoint_type(dep->endpoint.desc)) { | |
745 | case USB_ENDPOINT_XFER_CONTROL: | |
746 | seq_printf(s, "control\n"); | |
747 | break; | |
748 | case USB_ENDPOINT_XFER_ISOC: | |
749 | seq_printf(s, "isochronous\n"); | |
750 | break; | |
751 | case USB_ENDPOINT_XFER_BULK: | |
752 | seq_printf(s, "bulk\n"); | |
753 | break; | |
754 | case USB_ENDPOINT_XFER_INT: | |
755 | seq_printf(s, "interrupt\n"); | |
756 | break; | |
757 | default: | |
758 | seq_printf(s, "--\n"); | |
759 | } | |
760 | ||
761 | out: | |
762 | spin_unlock_irqrestore(&dwc->lock, flags); | |
763 | ||
764 | return 0; | |
765 | } | |
766 | ||
767 | static inline const char *dwc3_trb_type_string(struct dwc3_trb *trb) | |
768 | { | |
769 | switch (DWC3_TRBCTL_TYPE(trb->ctrl)) { | |
770 | case DWC3_TRBCTL_NORMAL: | |
771 | return "normal"; | |
772 | case DWC3_TRBCTL_CONTROL_SETUP: | |
773 | return "control-setup"; | |
774 | case DWC3_TRBCTL_CONTROL_STATUS2: | |
775 | return "control-status2"; | |
776 | case DWC3_TRBCTL_CONTROL_STATUS3: | |
777 | return "control-status3"; | |
778 | case DWC3_TRBCTL_CONTROL_DATA: | |
779 | return "control-data"; | |
780 | case DWC3_TRBCTL_ISOCHRONOUS_FIRST: | |
781 | return "isoc-first"; | |
782 | case DWC3_TRBCTL_ISOCHRONOUS: | |
783 | return "isoc"; | |
784 | case DWC3_TRBCTL_LINK_TRB: | |
785 | return "link"; | |
786 | default: | |
787 | return "UNKNOWN"; | |
788 | } | |
789 | } | |
790 | ||
791 | static int dwc3_ep_trb_ring_show(struct seq_file *s, void *unused) | |
792 | { | |
793 | struct dwc3_ep *dep = s->private; | |
794 | struct dwc3 *dwc = dep->dwc; | |
795 | unsigned long flags; | |
796 | int i; | |
797 | ||
798 | spin_lock_irqsave(&dwc->lock, flags); | |
799 | if (dep->number <= 1) { | |
800 | seq_printf(s, "--\n"); | |
801 | goto out; | |
802 | } | |
803 | ||
804 | seq_printf(s, "enqueue pointer %d\n", dep->trb_enqueue); | |
805 | seq_printf(s, "dequeue pointer %d\n", dep->trb_dequeue); | |
806 | seq_printf(s, "\n--------------------------------------------------\n\n"); | |
807 | seq_printf(s, "buffer_addr,size,type,ioc,isp_imi,csp,chn,lst,hwo\n"); | |
808 | ||
809 | for (i = 0; i < DWC3_TRB_NUM; i++) { | |
810 | struct dwc3_trb *trb = &dep->trb_pool[i]; | |
811 | ||
812 | seq_printf(s, "%08x%08x,%d,%s,%d,%d,%d,%d,%d,%d\n", | |
813 | trb->bph, trb->bpl, trb->size, | |
814 | dwc3_trb_type_string(trb), | |
815 | !!(trb->ctrl & DWC3_TRB_CTRL_IOC), | |
816 | !!(trb->ctrl & DWC3_TRB_CTRL_ISP_IMI), | |
817 | !!(trb->ctrl & DWC3_TRB_CTRL_CSP), | |
818 | !!(trb->ctrl & DWC3_TRB_CTRL_CHN), | |
819 | !!(trb->ctrl & DWC3_TRB_CTRL_LST), | |
820 | !!(trb->ctrl & DWC3_TRB_CTRL_HWO)); | |
821 | } | |
822 | ||
823 | out: | |
824 | spin_unlock_irqrestore(&dwc->lock, flags); | |
825 | ||
826 | return 0; | |
827 | } | |
828 | ||
829 | static struct dwc3_ep_file_map map[] = { | |
830 | { "tx_fifo_queue", dwc3_tx_fifo_queue_show, }, | |
831 | { "rx_fifo_queue", dwc3_rx_fifo_queue_show, }, | |
832 | { "tx_request_queue", dwc3_tx_request_queue_show, }, | |
833 | { "rx_request_queue", dwc3_rx_request_queue_show, }, | |
834 | { "rx_info_queue", dwc3_rx_info_queue_show, }, | |
835 | { "descriptor_fetch_queue", dwc3_descriptor_fetch_queue_show, }, | |
836 | { "event_queue", dwc3_event_queue_show, }, | |
837 | { "transfer_type", dwc3_ep_transfer_type_show, }, | |
838 | { "trb_ring", dwc3_ep_trb_ring_show, }, | |
839 | }; | |
840 | ||
841 | static int dwc3_endpoint_open(struct inode *inode, struct file *file) | |
842 | { | |
843 | const char *file_name = file_dentry(file)->d_iname; | |
844 | struct dwc3_ep_file_map *f_map; | |
845 | int i; | |
846 | ||
847 | for (i = 0; i < ARRAY_SIZE(map); i++) { | |
848 | f_map = &map[i]; | |
849 | ||
850 | if (strcmp(f_map->name, file_name) == 0) | |
851 | break; | |
852 | } | |
853 | ||
854 | return single_open(file, f_map->show, inode->i_private); | |
855 | } | |
856 | ||
857 | static const struct file_operations dwc3_endpoint_fops = { | |
858 | .open = dwc3_endpoint_open, | |
859 | .read = seq_read, | |
860 | .llseek = seq_lseek, | |
861 | .release = single_release, | |
862 | }; | |
863 | ||
864 | static void dwc3_debugfs_create_endpoint_file(struct dwc3_ep *dep, | |
865 | struct dentry *parent, int type) | |
72246da4 | 866 | { |
72246da4 | 867 | struct dentry *file; |
818ec3ab | 868 | struct dwc3_ep_file_map *ep_file = &map[type]; |
72246da4 | 869 | |
818ec3ab FB |
870 | file = debugfs_create_file(ep_file->name, S_IRUGO, parent, dep, |
871 | &dwc3_endpoint_fops); | |
872 | } | |
873 | ||
874 | static void dwc3_debugfs_create_endpoint_files(struct dwc3_ep *dep, | |
875 | struct dentry *parent) | |
876 | { | |
877 | int i; | |
878 | ||
879 | for (i = 0; i < ARRAY_SIZE(map); i++) | |
880 | dwc3_debugfs_create_endpoint_file(dep, parent, i); | |
881 | } | |
882 | ||
883 | static void dwc3_debugfs_create_endpoint_dir(struct dwc3_ep *dep, | |
884 | struct dentry *parent) | |
885 | { | |
886 | struct dentry *dir; | |
887 | ||
888 | dir = debugfs_create_dir(dep->name, parent); | |
889 | if (IS_ERR_OR_NULL(dir)) | |
890 | return; | |
891 | ||
892 | dwc3_debugfs_create_endpoint_files(dep, dir); | |
893 | } | |
894 | ||
895 | static void dwc3_debugfs_create_endpoint_dirs(struct dwc3 *dwc, | |
896 | struct dentry *parent) | |
897 | { | |
898 | int i; | |
899 | ||
900 | for (i = 0; i < dwc->num_in_eps; i++) { | |
901 | u8 epnum = (i << 1) | 1; | |
902 | struct dwc3_ep *dep = dwc->eps[epnum]; | |
903 | ||
904 | if (!dep) | |
905 | continue; | |
906 | ||
907 | dwc3_debugfs_create_endpoint_dir(dep, parent); | |
908 | } | |
909 | ||
910 | for (i = 0; i < dwc->num_out_eps; i++) { | |
911 | u8 epnum = (i << 1); | |
912 | struct dwc3_ep *dep = dwc->eps[epnum]; | |
913 | ||
914 | if (!dep) | |
915 | continue; | |
916 | ||
917 | dwc3_debugfs_create_endpoint_dir(dep, parent); | |
72246da4 | 918 | } |
818ec3ab FB |
919 | } |
920 | ||
4e9f3118 | 921 | void dwc3_debugfs_init(struct dwc3 *dwc) |
72246da4 FB |
922 | { |
923 | struct dentry *root; | |
4e9f3118 | 924 | struct dentry *file; |
72246da4 | 925 | |
72246da4 | 926 | root = debugfs_create_dir(dev_name(dwc->dev), NULL); |
4e9f3118 DC |
927 | if (IS_ERR_OR_NULL(root)) { |
928 | if (!root) | |
929 | dev_err(dwc->dev, "Can't create debugfs root\n"); | |
930 | return; | |
72246da4 | 931 | } |
72246da4 FB |
932 | dwc->root = root; |
933 | ||
d7668024 FB |
934 | dwc->regset = kzalloc(sizeof(*dwc->regset), GFP_KERNEL); |
935 | if (!dwc->regset) { | |
4e9f3118 DC |
936 | debugfs_remove_recursive(root); |
937 | return; | |
d7668024 FB |
938 | } |
939 | ||
940 | dwc->regset->regs = dwc3_regs; | |
941 | dwc->regset->nregs = ARRAY_SIZE(dwc3_regs); | |
942 | dwc->regset->base = dwc->regs; | |
943 | ||
944 | file = debugfs_create_regset32("regdump", S_IRUGO, root, dwc->regset); | |
4e9f3118 DC |
945 | if (!file) |
946 | dev_dbg(dwc->dev, "Can't create debugfs regdump\n"); | |
0b9fe32d | 947 | |
dbfff05d FB |
948 | if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)) { |
949 | file = debugfs_create_file("mode", S_IRUGO | S_IWUSR, root, | |
950 | dwc, &dwc3_mode_fops); | |
4e9f3118 DC |
951 | if (!file) |
952 | dev_dbg(dwc->dev, "Can't create debugfs mode\n"); | |
0b9fe32d FB |
953 | } |
954 | ||
dbfff05d FB |
955 | if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE) || |
956 | IS_ENABLED(CONFIG_USB_DWC3_GADGET)) { | |
957 | file = debugfs_create_file("testmode", S_IRUGO | S_IWUSR, root, | |
958 | dwc, &dwc3_testmode_fops); | |
4e9f3118 DC |
959 | if (!file) |
960 | dev_dbg(dwc->dev, "Can't create debugfs testmode\n"); | |
138801aa | 961 | |
4e9f3118 DC |
962 | file = debugfs_create_file("link_state", S_IRUGO | S_IWUSR, |
963 | root, dwc, &dwc3_link_state_fops); | |
964 | if (!file) | |
965 | dev_dbg(dwc->dev, "Can't create debugfs link_state\n"); | |
72246da4 | 966 | |
818ec3ab | 967 | dwc3_debugfs_create_endpoint_dirs(dwc, root); |
4e9f3118 | 968 | } |
72246da4 FB |
969 | } |
970 | ||
fb4e98ab | 971 | void dwc3_debugfs_exit(struct dwc3 *dwc) |
72246da4 FB |
972 | { |
973 | debugfs_remove_recursive(dwc->root); | |
e6bdf819 | 974 | kfree(dwc->regset); |
72246da4 | 975 | } |