Commit | Line | Data |
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5fd54ace | 1 | // SPDX-License-Identifier: GPL-2.0 |
72246da4 FB |
2 | /** |
3 | * debugfs.c - DesignWare USB3 DRD Controller DebugFS file | |
4 | * | |
5 | * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com | |
72246da4 FB |
6 | * |
7 | * Authors: Felipe Balbi <balbi@ti.com>, | |
8 | * Sebastian Andrzej Siewior <bigeasy@linutronix.de> | |
72246da4 FB |
9 | */ |
10 | ||
11 | #include <linux/kernel.h> | |
12 | #include <linux/slab.h> | |
13 | #include <linux/ptrace.h> | |
14 | #include <linux/types.h> | |
15 | #include <linux/spinlock.h> | |
16 | #include <linux/debugfs.h> | |
17 | #include <linux/seq_file.h> | |
18 | #include <linux/delay.h> | |
25b8ff68 | 19 | #include <linux/uaccess.h> |
72246da4 | 20 | |
080d921f FB |
21 | #include <linux/usb/ch9.h> |
22 | ||
72246da4 FB |
23 | #include "core.h" |
24 | #include "gadget.h" | |
25 | #include "io.h" | |
8becf270 | 26 | #include "debug.h" |
72246da4 | 27 | |
72246da4 FB |
28 | #define dump_register(nm) \ |
29 | { \ | |
30 | .name = __stringify(nm), \ | |
2eb88016 | 31 | .offset = DWC3_ ##nm, \ |
72246da4 FB |
32 | } |
33 | ||
2eb88016 FB |
34 | #define dump_ep_register_set(n) \ |
35 | { \ | |
36 | .name = "DEPCMDPAR2("__stringify(n)")", \ | |
37 | .offset = DWC3_DEP_BASE(n) + \ | |
38 | DWC3_DEPCMDPAR2, \ | |
39 | }, \ | |
40 | { \ | |
41 | .name = "DEPCMDPAR1("__stringify(n)")", \ | |
42 | .offset = DWC3_DEP_BASE(n) + \ | |
43 | DWC3_DEPCMDPAR1, \ | |
44 | }, \ | |
45 | { \ | |
46 | .name = "DEPCMDPAR0("__stringify(n)")", \ | |
47 | .offset = DWC3_DEP_BASE(n) + \ | |
48 | DWC3_DEPCMDPAR0, \ | |
49 | }, \ | |
50 | { \ | |
51 | .name = "DEPCMD("__stringify(n)")", \ | |
52 | .offset = DWC3_DEP_BASE(n) + \ | |
53 | DWC3_DEPCMD, \ | |
54 | } | |
55 | ||
56 | ||
4ec0ddb1 | 57 | static const struct debugfs_reg32 dwc3_regs[] = { |
72246da4 FB |
58 | dump_register(GSBUSCFG0), |
59 | dump_register(GSBUSCFG1), | |
60 | dump_register(GTXTHRCFG), | |
61 | dump_register(GRXTHRCFG), | |
62 | dump_register(GCTL), | |
63 | dump_register(GEVTEN), | |
64 | dump_register(GSTS), | |
475c8beb | 65 | dump_register(GUCTL1), |
72246da4 FB |
66 | dump_register(GSNPSID), |
67 | dump_register(GGPIO), | |
68 | dump_register(GUID), | |
69 | dump_register(GUCTL), | |
70 | dump_register(GBUSERRADDR0), | |
71 | dump_register(GBUSERRADDR1), | |
72 | dump_register(GPRTBIMAP0), | |
73 | dump_register(GPRTBIMAP1), | |
74 | dump_register(GHWPARAMS0), | |
75 | dump_register(GHWPARAMS1), | |
76 | dump_register(GHWPARAMS2), | |
77 | dump_register(GHWPARAMS3), | |
78 | dump_register(GHWPARAMS4), | |
79 | dump_register(GHWPARAMS5), | |
80 | dump_register(GHWPARAMS6), | |
81 | dump_register(GHWPARAMS7), | |
82 | dump_register(GDBGFIFOSPACE), | |
83 | dump_register(GDBGLTSSM), | |
80b77634 TN |
84 | dump_register(GDBGBMU), |
85 | dump_register(GDBGLSPMUX), | |
86 | dump_register(GDBGLSP), | |
87 | dump_register(GDBGEPINFO0), | |
88 | dump_register(GDBGEPINFO1), | |
72246da4 FB |
89 | dump_register(GPRTBIMAP_HS0), |
90 | dump_register(GPRTBIMAP_HS1), | |
91 | dump_register(GPRTBIMAP_FS0), | |
92 | dump_register(GPRTBIMAP_FS1), | |
93 | ||
94 | dump_register(GUSB2PHYCFG(0)), | |
95 | dump_register(GUSB2PHYCFG(1)), | |
96 | dump_register(GUSB2PHYCFG(2)), | |
97 | dump_register(GUSB2PHYCFG(3)), | |
98 | dump_register(GUSB2PHYCFG(4)), | |
99 | dump_register(GUSB2PHYCFG(5)), | |
100 | dump_register(GUSB2PHYCFG(6)), | |
101 | dump_register(GUSB2PHYCFG(7)), | |
102 | dump_register(GUSB2PHYCFG(8)), | |
103 | dump_register(GUSB2PHYCFG(9)), | |
104 | dump_register(GUSB2PHYCFG(10)), | |
105 | dump_register(GUSB2PHYCFG(11)), | |
106 | dump_register(GUSB2PHYCFG(12)), | |
107 | dump_register(GUSB2PHYCFG(13)), | |
108 | dump_register(GUSB2PHYCFG(14)), | |
109 | dump_register(GUSB2PHYCFG(15)), | |
110 | ||
111 | dump_register(GUSB2I2CCTL(0)), | |
112 | dump_register(GUSB2I2CCTL(1)), | |
113 | dump_register(GUSB2I2CCTL(2)), | |
114 | dump_register(GUSB2I2CCTL(3)), | |
115 | dump_register(GUSB2I2CCTL(4)), | |
116 | dump_register(GUSB2I2CCTL(5)), | |
117 | dump_register(GUSB2I2CCTL(6)), | |
118 | dump_register(GUSB2I2CCTL(7)), | |
119 | dump_register(GUSB2I2CCTL(8)), | |
120 | dump_register(GUSB2I2CCTL(9)), | |
121 | dump_register(GUSB2I2CCTL(10)), | |
122 | dump_register(GUSB2I2CCTL(11)), | |
123 | dump_register(GUSB2I2CCTL(12)), | |
124 | dump_register(GUSB2I2CCTL(13)), | |
125 | dump_register(GUSB2I2CCTL(14)), | |
126 | dump_register(GUSB2I2CCTL(15)), | |
127 | ||
128 | dump_register(GUSB2PHYACC(0)), | |
129 | dump_register(GUSB2PHYACC(1)), | |
130 | dump_register(GUSB2PHYACC(2)), | |
131 | dump_register(GUSB2PHYACC(3)), | |
132 | dump_register(GUSB2PHYACC(4)), | |
133 | dump_register(GUSB2PHYACC(5)), | |
134 | dump_register(GUSB2PHYACC(6)), | |
135 | dump_register(GUSB2PHYACC(7)), | |
136 | dump_register(GUSB2PHYACC(8)), | |
137 | dump_register(GUSB2PHYACC(9)), | |
138 | dump_register(GUSB2PHYACC(10)), | |
139 | dump_register(GUSB2PHYACC(11)), | |
140 | dump_register(GUSB2PHYACC(12)), | |
141 | dump_register(GUSB2PHYACC(13)), | |
142 | dump_register(GUSB2PHYACC(14)), | |
143 | dump_register(GUSB2PHYACC(15)), | |
144 | ||
145 | dump_register(GUSB3PIPECTL(0)), | |
146 | dump_register(GUSB3PIPECTL(1)), | |
147 | dump_register(GUSB3PIPECTL(2)), | |
148 | dump_register(GUSB3PIPECTL(3)), | |
149 | dump_register(GUSB3PIPECTL(4)), | |
150 | dump_register(GUSB3PIPECTL(5)), | |
151 | dump_register(GUSB3PIPECTL(6)), | |
152 | dump_register(GUSB3PIPECTL(7)), | |
153 | dump_register(GUSB3PIPECTL(8)), | |
154 | dump_register(GUSB3PIPECTL(9)), | |
155 | dump_register(GUSB3PIPECTL(10)), | |
156 | dump_register(GUSB3PIPECTL(11)), | |
157 | dump_register(GUSB3PIPECTL(12)), | |
158 | dump_register(GUSB3PIPECTL(13)), | |
159 | dump_register(GUSB3PIPECTL(14)), | |
160 | dump_register(GUSB3PIPECTL(15)), | |
161 | ||
162 | dump_register(GTXFIFOSIZ(0)), | |
163 | dump_register(GTXFIFOSIZ(1)), | |
164 | dump_register(GTXFIFOSIZ(2)), | |
165 | dump_register(GTXFIFOSIZ(3)), | |
166 | dump_register(GTXFIFOSIZ(4)), | |
167 | dump_register(GTXFIFOSIZ(5)), | |
168 | dump_register(GTXFIFOSIZ(6)), | |
169 | dump_register(GTXFIFOSIZ(7)), | |
170 | dump_register(GTXFIFOSIZ(8)), | |
171 | dump_register(GTXFIFOSIZ(9)), | |
172 | dump_register(GTXFIFOSIZ(10)), | |
173 | dump_register(GTXFIFOSIZ(11)), | |
174 | dump_register(GTXFIFOSIZ(12)), | |
175 | dump_register(GTXFIFOSIZ(13)), | |
176 | dump_register(GTXFIFOSIZ(14)), | |
177 | dump_register(GTXFIFOSIZ(15)), | |
178 | dump_register(GTXFIFOSIZ(16)), | |
179 | dump_register(GTXFIFOSIZ(17)), | |
180 | dump_register(GTXFIFOSIZ(18)), | |
181 | dump_register(GTXFIFOSIZ(19)), | |
182 | dump_register(GTXFIFOSIZ(20)), | |
183 | dump_register(GTXFIFOSIZ(21)), | |
184 | dump_register(GTXFIFOSIZ(22)), | |
185 | dump_register(GTXFIFOSIZ(23)), | |
186 | dump_register(GTXFIFOSIZ(24)), | |
187 | dump_register(GTXFIFOSIZ(25)), | |
188 | dump_register(GTXFIFOSIZ(26)), | |
189 | dump_register(GTXFIFOSIZ(27)), | |
190 | dump_register(GTXFIFOSIZ(28)), | |
191 | dump_register(GTXFIFOSIZ(29)), | |
192 | dump_register(GTXFIFOSIZ(30)), | |
193 | dump_register(GTXFIFOSIZ(31)), | |
194 | ||
195 | dump_register(GRXFIFOSIZ(0)), | |
196 | dump_register(GRXFIFOSIZ(1)), | |
197 | dump_register(GRXFIFOSIZ(2)), | |
198 | dump_register(GRXFIFOSIZ(3)), | |
199 | dump_register(GRXFIFOSIZ(4)), | |
200 | dump_register(GRXFIFOSIZ(5)), | |
201 | dump_register(GRXFIFOSIZ(6)), | |
202 | dump_register(GRXFIFOSIZ(7)), | |
203 | dump_register(GRXFIFOSIZ(8)), | |
204 | dump_register(GRXFIFOSIZ(9)), | |
205 | dump_register(GRXFIFOSIZ(10)), | |
206 | dump_register(GRXFIFOSIZ(11)), | |
207 | dump_register(GRXFIFOSIZ(12)), | |
208 | dump_register(GRXFIFOSIZ(13)), | |
209 | dump_register(GRXFIFOSIZ(14)), | |
210 | dump_register(GRXFIFOSIZ(15)), | |
211 | dump_register(GRXFIFOSIZ(16)), | |
212 | dump_register(GRXFIFOSIZ(17)), | |
213 | dump_register(GRXFIFOSIZ(18)), | |
214 | dump_register(GRXFIFOSIZ(19)), | |
215 | dump_register(GRXFIFOSIZ(20)), | |
216 | dump_register(GRXFIFOSIZ(21)), | |
217 | dump_register(GRXFIFOSIZ(22)), | |
218 | dump_register(GRXFIFOSIZ(23)), | |
219 | dump_register(GRXFIFOSIZ(24)), | |
220 | dump_register(GRXFIFOSIZ(25)), | |
221 | dump_register(GRXFIFOSIZ(26)), | |
222 | dump_register(GRXFIFOSIZ(27)), | |
223 | dump_register(GRXFIFOSIZ(28)), | |
224 | dump_register(GRXFIFOSIZ(29)), | |
225 | dump_register(GRXFIFOSIZ(30)), | |
226 | dump_register(GRXFIFOSIZ(31)), | |
227 | ||
228 | dump_register(GEVNTADRLO(0)), | |
229 | dump_register(GEVNTADRHI(0)), | |
230 | dump_register(GEVNTSIZ(0)), | |
231 | dump_register(GEVNTCOUNT(0)), | |
232 | ||
233 | dump_register(GHWPARAMS8), | |
234 | dump_register(DCFG), | |
235 | dump_register(DCTL), | |
236 | dump_register(DEVTEN), | |
237 | dump_register(DSTS), | |
238 | dump_register(DGCMDPAR), | |
239 | dump_register(DGCMD), | |
240 | dump_register(DALEPENA), | |
241 | ||
2eb88016 FB |
242 | dump_ep_register_set(0), |
243 | dump_ep_register_set(1), | |
244 | dump_ep_register_set(2), | |
245 | dump_ep_register_set(3), | |
246 | dump_ep_register_set(4), | |
247 | dump_ep_register_set(5), | |
248 | dump_ep_register_set(6), | |
249 | dump_ep_register_set(7), | |
250 | dump_ep_register_set(8), | |
251 | dump_ep_register_set(9), | |
252 | dump_ep_register_set(10), | |
253 | dump_ep_register_set(11), | |
254 | dump_ep_register_set(12), | |
255 | dump_ep_register_set(13), | |
256 | dump_ep_register_set(14), | |
257 | dump_ep_register_set(15), | |
258 | dump_ep_register_set(16), | |
259 | dump_ep_register_set(17), | |
260 | dump_ep_register_set(18), | |
261 | dump_ep_register_set(19), | |
262 | dump_ep_register_set(20), | |
263 | dump_ep_register_set(21), | |
264 | dump_ep_register_set(22), | |
265 | dump_ep_register_set(23), | |
266 | dump_ep_register_set(24), | |
267 | dump_ep_register_set(25), | |
268 | dump_ep_register_set(26), | |
269 | dump_ep_register_set(27), | |
270 | dump_ep_register_set(28), | |
271 | dump_ep_register_set(29), | |
272 | dump_ep_register_set(30), | |
273 | dump_ep_register_set(31), | |
72246da4 FB |
274 | |
275 | dump_register(OCFG), | |
276 | dump_register(OCTL), | |
d4436c3a | 277 | dump_register(OEVT), |
72246da4 FB |
278 | dump_register(OEVTEN), |
279 | dump_register(OSTS), | |
280 | }; | |
281 | ||
0b9fe32d FB |
282 | static int dwc3_mode_show(struct seq_file *s, void *unused) |
283 | { | |
284 | struct dwc3 *dwc = s->private; | |
285 | unsigned long flags; | |
286 | u32 reg; | |
287 | ||
288 | spin_lock_irqsave(&dwc->lock, flags); | |
289 | reg = dwc3_readl(dwc->regs, DWC3_GCTL); | |
290 | spin_unlock_irqrestore(&dwc->lock, flags); | |
291 | ||
292 | switch (DWC3_GCTL_PRTCAP(reg)) { | |
293 | case DWC3_GCTL_PRTCAP_HOST: | |
294 | seq_printf(s, "host\n"); | |
295 | break; | |
296 | case DWC3_GCTL_PRTCAP_DEVICE: | |
297 | seq_printf(s, "device\n"); | |
298 | break; | |
299 | case DWC3_GCTL_PRTCAP_OTG: | |
2df301cd | 300 | seq_printf(s, "otg\n"); |
0b9fe32d FB |
301 | break; |
302 | default: | |
303 | seq_printf(s, "UNKNOWN %08x\n", DWC3_GCTL_PRTCAP(reg)); | |
304 | } | |
305 | ||
306 | return 0; | |
307 | } | |
308 | ||
309 | static int dwc3_mode_open(struct inode *inode, struct file *file) | |
310 | { | |
311 | return single_open(file, dwc3_mode_show, inode->i_private); | |
312 | } | |
313 | ||
314 | static ssize_t dwc3_mode_write(struct file *file, | |
315 | const char __user *ubuf, size_t count, loff_t *ppos) | |
316 | { | |
317 | struct seq_file *s = file->private_data; | |
318 | struct dwc3 *dwc = s->private; | |
3140e8cb | 319 | u32 mode = 0; |
0b9fe32d FB |
320 | char buf[32]; |
321 | ||
322 | if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) | |
323 | return -EFAULT; | |
324 | ||
0b9fe32d | 325 | if (!strncmp(buf, "host", 4)) |
b202c42c | 326 | mode = DWC3_GCTL_PRTCAP_HOST; |
0b9fe32d FB |
327 | |
328 | if (!strncmp(buf, "device", 6)) | |
b202c42c | 329 | mode = DWC3_GCTL_PRTCAP_DEVICE; |
0b9fe32d FB |
330 | |
331 | if (!strncmp(buf, "otg", 3)) | |
b202c42c | 332 | mode = DWC3_GCTL_PRTCAP_OTG; |
0b9fe32d | 333 | |
41ce1456 RQ |
334 | dwc3_set_mode(dwc, mode); |
335 | ||
0b9fe32d FB |
336 | return count; |
337 | } | |
338 | ||
339 | static const struct file_operations dwc3_mode_fops = { | |
340 | .open = dwc3_mode_open, | |
341 | .write = dwc3_mode_write, | |
342 | .read = seq_read, | |
343 | .llseek = seq_lseek, | |
344 | .release = single_release, | |
345 | }; | |
346 | ||
080d921f FB |
347 | static int dwc3_testmode_show(struct seq_file *s, void *unused) |
348 | { | |
349 | struct dwc3 *dwc = s->private; | |
350 | unsigned long flags; | |
351 | u32 reg; | |
352 | ||
353 | spin_lock_irqsave(&dwc->lock, flags); | |
354 | reg = dwc3_readl(dwc->regs, DWC3_DCTL); | |
355 | reg &= DWC3_DCTL_TSTCTRL_MASK; | |
356 | reg >>= 1; | |
357 | spin_unlock_irqrestore(&dwc->lock, flags); | |
358 | ||
359 | switch (reg) { | |
360 | case 0: | |
361 | seq_printf(s, "no test\n"); | |
362 | break; | |
363 | case TEST_J: | |
364 | seq_printf(s, "test_j\n"); | |
365 | break; | |
366 | case TEST_K: | |
367 | seq_printf(s, "test_k\n"); | |
368 | break; | |
369 | case TEST_SE0_NAK: | |
370 | seq_printf(s, "test_se0_nak\n"); | |
371 | break; | |
372 | case TEST_PACKET: | |
373 | seq_printf(s, "test_packet\n"); | |
374 | break; | |
375 | case TEST_FORCE_EN: | |
376 | seq_printf(s, "test_force_enable\n"); | |
377 | break; | |
378 | default: | |
379 | seq_printf(s, "UNKNOWN %d\n", reg); | |
380 | } | |
381 | ||
382 | return 0; | |
383 | } | |
384 | ||
385 | static int dwc3_testmode_open(struct inode *inode, struct file *file) | |
386 | { | |
387 | return single_open(file, dwc3_testmode_show, inode->i_private); | |
388 | } | |
389 | ||
390 | static ssize_t dwc3_testmode_write(struct file *file, | |
391 | const char __user *ubuf, size_t count, loff_t *ppos) | |
392 | { | |
393 | struct seq_file *s = file->private_data; | |
394 | struct dwc3 *dwc = s->private; | |
395 | unsigned long flags; | |
396 | u32 testmode = 0; | |
397 | char buf[32]; | |
398 | ||
399 | if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) | |
400 | return -EFAULT; | |
401 | ||
402 | if (!strncmp(buf, "test_j", 6)) | |
403 | testmode = TEST_J; | |
404 | else if (!strncmp(buf, "test_k", 6)) | |
405 | testmode = TEST_K; | |
09072543 | 406 | else if (!strncmp(buf, "test_se0_nak", 12)) |
080d921f | 407 | testmode = TEST_SE0_NAK; |
09072543 | 408 | else if (!strncmp(buf, "test_packet", 11)) |
080d921f | 409 | testmode = TEST_PACKET; |
09072543 | 410 | else if (!strncmp(buf, "test_force_enable", 17)) |
080d921f FB |
411 | testmode = TEST_FORCE_EN; |
412 | else | |
413 | testmode = 0; | |
414 | ||
415 | spin_lock_irqsave(&dwc->lock, flags); | |
416 | dwc3_gadget_set_test_mode(dwc, testmode); | |
417 | spin_unlock_irqrestore(&dwc->lock, flags); | |
418 | ||
419 | return count; | |
420 | } | |
421 | ||
422 | static const struct file_operations dwc3_testmode_fops = { | |
423 | .open = dwc3_testmode_open, | |
424 | .write = dwc3_testmode_write, | |
425 | .read = seq_read, | |
426 | .llseek = seq_lseek, | |
427 | .release = single_release, | |
428 | }; | |
429 | ||
138801aa FB |
430 | static int dwc3_link_state_show(struct seq_file *s, void *unused) |
431 | { | |
432 | struct dwc3 *dwc = s->private; | |
433 | unsigned long flags; | |
434 | enum dwc3_link_state state; | |
435 | u32 reg; | |
436 | ||
437 | spin_lock_irqsave(&dwc->lock, flags); | |
438 | reg = dwc3_readl(dwc->regs, DWC3_DSTS); | |
439 | state = DWC3_DSTS_USBLNKST(reg); | |
440 | spin_unlock_irqrestore(&dwc->lock, flags); | |
441 | ||
26c9f3e3 | 442 | seq_printf(s, "%s\n", dwc3_gadget_link_string(state)); |
138801aa FB |
443 | |
444 | return 0; | |
445 | } | |
446 | ||
447 | static int dwc3_link_state_open(struct inode *inode, struct file *file) | |
448 | { | |
449 | return single_open(file, dwc3_link_state_show, inode->i_private); | |
450 | } | |
451 | ||
452 | static ssize_t dwc3_link_state_write(struct file *file, | |
453 | const char __user *ubuf, size_t count, loff_t *ppos) | |
454 | { | |
455 | struct seq_file *s = file->private_data; | |
456 | struct dwc3 *dwc = s->private; | |
457 | unsigned long flags; | |
458 | enum dwc3_link_state state = 0; | |
459 | char buf[32]; | |
460 | ||
461 | if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) | |
462 | return -EFAULT; | |
463 | ||
464 | if (!strncmp(buf, "SS.Disabled", 11)) | |
465 | state = DWC3_LINK_STATE_SS_DIS; | |
466 | else if (!strncmp(buf, "Rx.Detect", 9)) | |
467 | state = DWC3_LINK_STATE_RX_DET; | |
468 | else if (!strncmp(buf, "SS.Inactive", 11)) | |
469 | state = DWC3_LINK_STATE_SS_INACT; | |
470 | else if (!strncmp(buf, "Recovery", 8)) | |
471 | state = DWC3_LINK_STATE_RECOV; | |
472 | else if (!strncmp(buf, "Compliance", 10)) | |
473 | state = DWC3_LINK_STATE_CMPLY; | |
474 | else if (!strncmp(buf, "Loopback", 8)) | |
475 | state = DWC3_LINK_STATE_LPBK; | |
476 | else | |
477 | return -EINVAL; | |
478 | ||
479 | spin_lock_irqsave(&dwc->lock, flags); | |
480 | dwc3_gadget_set_link_state(dwc, state); | |
481 | spin_unlock_irqrestore(&dwc->lock, flags); | |
482 | ||
483 | return count; | |
484 | } | |
485 | ||
486 | static const struct file_operations dwc3_link_state_fops = { | |
487 | .open = dwc3_link_state_open, | |
488 | .write = dwc3_link_state_write, | |
489 | .read = seq_read, | |
490 | .llseek = seq_lseek, | |
491 | .release = single_release, | |
492 | }; | |
493 | ||
818ec3ab | 494 | struct dwc3_ep_file_map { |
6d5b53c1 FB |
495 | const char name[25]; |
496 | const struct file_operations *const fops; | |
818ec3ab FB |
497 | }; |
498 | ||
2c85a181 | 499 | static int dwc3_tx_fifo_size_show(struct seq_file *s, void *unused) |
818ec3ab FB |
500 | { |
501 | struct dwc3_ep *dep = s->private; | |
502 | struct dwc3 *dwc = dep->dwc; | |
503 | unsigned long flags; | |
504 | u32 val; | |
505 | ||
506 | spin_lock_irqsave(&dwc->lock, flags); | |
2c85a181 | 507 | val = dwc3_core_fifo_space(dep, DWC3_TXFIFO); |
0f874f79 TN |
508 | |
509 | /* Convert to bytes */ | |
510 | val *= DWC3_MDWIDTH(dwc->hwparams.hwparams0); | |
511 | val >>= 3; | |
818ec3ab FB |
512 | seq_printf(s, "%u\n", val); |
513 | spin_unlock_irqrestore(&dwc->lock, flags); | |
514 | ||
515 | return 0; | |
516 | } | |
517 | ||
2c85a181 | 518 | static int dwc3_rx_fifo_size_show(struct seq_file *s, void *unused) |
818ec3ab FB |
519 | { |
520 | struct dwc3_ep *dep = s->private; | |
521 | struct dwc3 *dwc = dep->dwc; | |
522 | unsigned long flags; | |
523 | u32 val; | |
524 | ||
525 | spin_lock_irqsave(&dwc->lock, flags); | |
2c85a181 | 526 | val = dwc3_core_fifo_space(dep, DWC3_RXFIFO); |
0f874f79 TN |
527 | |
528 | /* Convert to bytes */ | |
529 | val *= DWC3_MDWIDTH(dwc->hwparams.hwparams0); | |
530 | val >>= 3; | |
818ec3ab FB |
531 | seq_printf(s, "%u\n", val); |
532 | spin_unlock_irqrestore(&dwc->lock, flags); | |
533 | ||
534 | return 0; | |
535 | } | |
536 | ||
537 | static int dwc3_tx_request_queue_show(struct seq_file *s, void *unused) | |
538 | { | |
539 | struct dwc3_ep *dep = s->private; | |
540 | struct dwc3 *dwc = dep->dwc; | |
541 | unsigned long flags; | |
542 | u32 val; | |
543 | ||
544 | spin_lock_irqsave(&dwc->lock, flags); | |
545 | val = dwc3_core_fifo_space(dep, DWC3_TXREQQ); | |
546 | seq_printf(s, "%u\n", val); | |
547 | spin_unlock_irqrestore(&dwc->lock, flags); | |
548 | ||
549 | return 0; | |
550 | } | |
551 | ||
552 | static int dwc3_rx_request_queue_show(struct seq_file *s, void *unused) | |
553 | { | |
554 | struct dwc3_ep *dep = s->private; | |
555 | struct dwc3 *dwc = dep->dwc; | |
556 | unsigned long flags; | |
557 | u32 val; | |
558 | ||
559 | spin_lock_irqsave(&dwc->lock, flags); | |
560 | val = dwc3_core_fifo_space(dep, DWC3_RXREQQ); | |
561 | seq_printf(s, "%u\n", val); | |
562 | spin_unlock_irqrestore(&dwc->lock, flags); | |
563 | ||
564 | return 0; | |
565 | } | |
566 | ||
567 | static int dwc3_rx_info_queue_show(struct seq_file *s, void *unused) | |
568 | { | |
569 | struct dwc3_ep *dep = s->private; | |
570 | struct dwc3 *dwc = dep->dwc; | |
571 | unsigned long flags; | |
572 | u32 val; | |
573 | ||
574 | spin_lock_irqsave(&dwc->lock, flags); | |
575 | val = dwc3_core_fifo_space(dep, DWC3_RXINFOQ); | |
576 | seq_printf(s, "%u\n", val); | |
577 | spin_unlock_irqrestore(&dwc->lock, flags); | |
578 | ||
579 | return 0; | |
580 | } | |
581 | ||
582 | static int dwc3_descriptor_fetch_queue_show(struct seq_file *s, void *unused) | |
583 | { | |
584 | struct dwc3_ep *dep = s->private; | |
585 | struct dwc3 *dwc = dep->dwc; | |
586 | unsigned long flags; | |
587 | u32 val; | |
588 | ||
589 | spin_lock_irqsave(&dwc->lock, flags); | |
590 | val = dwc3_core_fifo_space(dep, DWC3_DESCFETCHQ); | |
591 | seq_printf(s, "%u\n", val); | |
592 | spin_unlock_irqrestore(&dwc->lock, flags); | |
593 | ||
594 | return 0; | |
595 | } | |
596 | ||
597 | static int dwc3_event_queue_show(struct seq_file *s, void *unused) | |
598 | { | |
599 | struct dwc3_ep *dep = s->private; | |
600 | struct dwc3 *dwc = dep->dwc; | |
601 | unsigned long flags; | |
602 | u32 val; | |
603 | ||
604 | spin_lock_irqsave(&dwc->lock, flags); | |
605 | val = dwc3_core_fifo_space(dep, DWC3_EVENTQ); | |
606 | seq_printf(s, "%u\n", val); | |
607 | spin_unlock_irqrestore(&dwc->lock, flags); | |
608 | ||
609 | return 0; | |
610 | } | |
611 | ||
6d5b53c1 | 612 | static int dwc3_transfer_type_show(struct seq_file *s, void *unused) |
818ec3ab FB |
613 | { |
614 | struct dwc3_ep *dep = s->private; | |
615 | struct dwc3 *dwc = dep->dwc; | |
616 | unsigned long flags; | |
617 | ||
618 | spin_lock_irqsave(&dwc->lock, flags); | |
619 | if (!(dep->flags & DWC3_EP_ENABLED) || | |
620 | !dep->endpoint.desc) { | |
621 | seq_printf(s, "--\n"); | |
622 | goto out; | |
623 | } | |
624 | ||
625 | switch (usb_endpoint_type(dep->endpoint.desc)) { | |
626 | case USB_ENDPOINT_XFER_CONTROL: | |
627 | seq_printf(s, "control\n"); | |
628 | break; | |
629 | case USB_ENDPOINT_XFER_ISOC: | |
630 | seq_printf(s, "isochronous\n"); | |
631 | break; | |
632 | case USB_ENDPOINT_XFER_BULK: | |
633 | seq_printf(s, "bulk\n"); | |
634 | break; | |
635 | case USB_ENDPOINT_XFER_INT: | |
636 | seq_printf(s, "interrupt\n"); | |
637 | break; | |
638 | default: | |
639 | seq_printf(s, "--\n"); | |
640 | } | |
641 | ||
642 | out: | |
643 | spin_unlock_irqrestore(&dwc->lock, flags); | |
644 | ||
645 | return 0; | |
646 | } | |
647 | ||
6d5b53c1 | 648 | static int dwc3_trb_ring_show(struct seq_file *s, void *unused) |
818ec3ab FB |
649 | { |
650 | struct dwc3_ep *dep = s->private; | |
651 | struct dwc3 *dwc = dep->dwc; | |
652 | unsigned long flags; | |
653 | int i; | |
654 | ||
655 | spin_lock_irqsave(&dwc->lock, flags); | |
656 | if (dep->number <= 1) { | |
657 | seq_printf(s, "--\n"); | |
658 | goto out; | |
659 | } | |
660 | ||
818ec3ab FB |
661 | seq_printf(s, "buffer_addr,size,type,ioc,isp_imi,csp,chn,lst,hwo\n"); |
662 | ||
663 | for (i = 0; i < DWC3_TRB_NUM; i++) { | |
664 | struct dwc3_trb *trb = &dep->trb_pool[i]; | |
b5c7ed5c | 665 | unsigned int type = DWC3_TRBCTL_TYPE(trb->ctrl); |
818ec3ab | 666 | |
436841d5 | 667 | seq_printf(s, "%08x%08x,%d,%s,%d,%d,%d,%d,%d,%d %c%c\n", |
818ec3ab | 668 | trb->bph, trb->bpl, trb->size, |
b5c7ed5c | 669 | dwc3_trb_type_string(type), |
818ec3ab FB |
670 | !!(trb->ctrl & DWC3_TRB_CTRL_IOC), |
671 | !!(trb->ctrl & DWC3_TRB_CTRL_ISP_IMI), | |
672 | !!(trb->ctrl & DWC3_TRB_CTRL_CSP), | |
673 | !!(trb->ctrl & DWC3_TRB_CTRL_CHN), | |
674 | !!(trb->ctrl & DWC3_TRB_CTRL_LST), | |
436841d5 FB |
675 | !!(trb->ctrl & DWC3_TRB_CTRL_HWO), |
676 | dep->trb_enqueue == i ? 'E' : ' ', | |
677 | dep->trb_dequeue == i ? 'D' : ' '); | |
818ec3ab FB |
678 | } |
679 | ||
680 | out: | |
681 | spin_unlock_irqrestore(&dwc->lock, flags); | |
682 | ||
683 | return 0; | |
684 | } | |
685 | ||
2c85a181 TN |
686 | DEFINE_SHOW_ATTRIBUTE(dwc3_tx_fifo_size); |
687 | DEFINE_SHOW_ATTRIBUTE(dwc3_rx_fifo_size); | |
6d5b53c1 FB |
688 | DEFINE_SHOW_ATTRIBUTE(dwc3_tx_request_queue); |
689 | DEFINE_SHOW_ATTRIBUTE(dwc3_rx_request_queue); | |
690 | DEFINE_SHOW_ATTRIBUTE(dwc3_rx_info_queue); | |
691 | DEFINE_SHOW_ATTRIBUTE(dwc3_descriptor_fetch_queue); | |
692 | DEFINE_SHOW_ATTRIBUTE(dwc3_event_queue); | |
693 | DEFINE_SHOW_ATTRIBUTE(dwc3_transfer_type); | |
694 | DEFINE_SHOW_ATTRIBUTE(dwc3_trb_ring); | |
695 | ||
696 | static const struct dwc3_ep_file_map dwc3_ep_file_map[] = { | |
2c85a181 TN |
697 | { "tx_fifo_size", &dwc3_tx_fifo_size_fops, }, |
698 | { "rx_fifo_size", &dwc3_rx_fifo_size_fops, }, | |
6d5b53c1 FB |
699 | { "tx_request_queue", &dwc3_tx_request_queue_fops, }, |
700 | { "rx_request_queue", &dwc3_rx_request_queue_fops, }, | |
701 | { "rx_info_queue", &dwc3_rx_info_queue_fops, }, | |
702 | { "descriptor_fetch_queue", &dwc3_descriptor_fetch_queue_fops, }, | |
703 | { "event_queue", &dwc3_event_queue_fops, }, | |
704 | { "transfer_type", &dwc3_transfer_type_fops, }, | |
705 | { "trb_ring", &dwc3_trb_ring_fops, }, | |
818ec3ab FB |
706 | }; |
707 | ||
818ec3ab FB |
708 | static void dwc3_debugfs_create_endpoint_files(struct dwc3_ep *dep, |
709 | struct dentry *parent) | |
710 | { | |
711 | int i; | |
712 | ||
6d5b53c1 FB |
713 | for (i = 0; i < ARRAY_SIZE(dwc3_ep_file_map); i++) { |
714 | const struct file_operations *fops = dwc3_ep_file_map[i].fops; | |
715 | const char *name = dwc3_ep_file_map[i].name; | |
716 | ||
717 | debugfs_create_file(name, S_IRUGO, parent, dep, fops); | |
718 | } | |
818ec3ab FB |
719 | } |
720 | ||
721 | static void dwc3_debugfs_create_endpoint_dir(struct dwc3_ep *dep, | |
722 | struct dentry *parent) | |
723 | { | |
724 | struct dentry *dir; | |
725 | ||
726 | dir = debugfs_create_dir(dep->name, parent); | |
818ec3ab FB |
727 | dwc3_debugfs_create_endpoint_files(dep, dir); |
728 | } | |
729 | ||
730 | static void dwc3_debugfs_create_endpoint_dirs(struct dwc3 *dwc, | |
731 | struct dentry *parent) | |
732 | { | |
733 | int i; | |
734 | ||
47d3946e BD |
735 | for (i = 0; i < dwc->num_eps; i++) { |
736 | struct dwc3_ep *dep = dwc->eps[i]; | |
818ec3ab FB |
737 | |
738 | if (!dep) | |
739 | continue; | |
740 | ||
741 | dwc3_debugfs_create_endpoint_dir(dep, parent); | |
72246da4 | 742 | } |
818ec3ab FB |
743 | } |
744 | ||
4e9f3118 | 745 | void dwc3_debugfs_init(struct dwc3 *dwc) |
72246da4 FB |
746 | { |
747 | struct dentry *root; | |
72246da4 | 748 | |
d7668024 | 749 | dwc->regset = kzalloc(sizeof(*dwc->regset), GFP_KERNEL); |
535c8dc5 | 750 | if (!dwc->regset) |
4e9f3118 | 751 | return; |
d7668024 FB |
752 | |
753 | dwc->regset->regs = dwc3_regs; | |
754 | dwc->regset->nregs = ARRAY_SIZE(dwc3_regs); | |
2eb88016 | 755 | dwc->regset->base = dwc->regs - DWC3_GLOBALS_REGS_START; |
d7668024 | 756 | |
535c8dc5 GKH |
757 | root = debugfs_create_dir(dev_name(dwc->dev), NULL); |
758 | dwc->root = root; | |
759 | ||
760 | debugfs_create_regset32("regdump", S_IRUGO, root, dwc->regset); | |
0b9fe32d | 761 | |
dbfff05d | 762 | if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)) { |
535c8dc5 GKH |
763 | debugfs_create_file("mode", S_IRUGO | S_IWUSR, root, dwc, |
764 | &dwc3_mode_fops); | |
0b9fe32d FB |
765 | } |
766 | ||
dbfff05d FB |
767 | if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE) || |
768 | IS_ENABLED(CONFIG_USB_DWC3_GADGET)) { | |
535c8dc5 GKH |
769 | debugfs_create_file("testmode", S_IRUGO | S_IWUSR, root, dwc, |
770 | &dwc3_testmode_fops); | |
771 | debugfs_create_file("link_state", S_IRUGO | S_IWUSR, root, dwc, | |
772 | &dwc3_link_state_fops); | |
818ec3ab | 773 | dwc3_debugfs_create_endpoint_dirs(dwc, root); |
4e9f3118 | 774 | } |
72246da4 FB |
775 | } |
776 | ||
fb4e98ab | 777 | void dwc3_debugfs_exit(struct dwc3 *dwc) |
72246da4 FB |
778 | { |
779 | debugfs_remove_recursive(dwc->root); | |
e6bdf819 | 780 | kfree(dwc->regset); |
72246da4 | 781 | } |