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review.trustedfirmware.org / hafnium / third_party / linux.git / 0f672f6c0b52b7b0700b0915c72b540721af4465 / . / drivers / usb / dwc2 / debugfs.c
blob: 7f62f4cdc26512eb5a7b0cc4a98e6fc89d8eb780 [file] [log] [blame]
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]1// SPDX-License-Identifier: GPL-2.0
2/*
3 * debugfs.c - Designware USB2 DRD controller debugfs
4 *
5 * Copyright (C) 2015 Intel Corporation
6 * Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
7 */
8
9#include <linux/spinlock.h>
10#include <linux/debugfs.h>
11#include <linux/seq_file.h>
12#include <linux/uaccess.h>
13
14#include "core.h"
15#include "debug.h"
16
17#if IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL) || \
18 IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)
19
20/**
21 * testmode_write() - change usb test mode state.
22 * @file: The file to write to.
23 * @ubuf: The buffer where user wrote.
24 * @count: The ubuf size.
25 * @ppos: Unused parameter.
26 */
27static ssize_t testmode_write(struct file *file, const char __user *ubuf, size_t
28 count, loff_t *ppos)
29{
30 struct seq_file *s = file->private_data;
31 struct dwc2_hsotg *hsotg = s->private;
32 unsigned long flags;
33 u32 testmode = 0;
34 char buf[32];
35
36 if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
37 return -EFAULT;
38
39 if (!strncmp(buf, "test_j", 6))
40 testmode = TEST_J;
41 else if (!strncmp(buf, "test_k", 6))
42 testmode = TEST_K;
43 else if (!strncmp(buf, "test_se0_nak", 12))
44 testmode = TEST_SE0_NAK;
45 else if (!strncmp(buf, "test_packet", 11))
46 testmode = TEST_PACKET;
47 else if (!strncmp(buf, "test_force_enable", 17))
48 testmode = TEST_FORCE_EN;
49 else
50 testmode = 0;
51
52 spin_lock_irqsave(&hsotg->lock, flags);
53 dwc2_hsotg_set_test_mode(hsotg, testmode);
54 spin_unlock_irqrestore(&hsotg->lock, flags);
55 return count;
56}
57
58/**
59 * testmode_show() - debugfs: show usb test mode state
60 * @s: The seq file to write to.
61 * @unused: Unused parameter.
62 *
63 * This debugfs entry shows which usb test mode is currently enabled.
64 */
65static int testmode_show(struct seq_file *s, void *unused)
66{
67 struct dwc2_hsotg *hsotg = s->private;
68 unsigned long flags;
69 int dctl;
70
71 spin_lock_irqsave(&hsotg->lock, flags);
72 dctl = dwc2_readl(hsotg, DCTL);
73 dctl &= DCTL_TSTCTL_MASK;
74 dctl >>= DCTL_TSTCTL_SHIFT;
75 spin_unlock_irqrestore(&hsotg->lock, flags);
76
77 switch (dctl) {
78 case 0:
79 seq_puts(s, "no test\n");
80 break;
81 case TEST_J:
82 seq_puts(s, "test_j\n");
83 break;
84 case TEST_K:
85 seq_puts(s, "test_k\n");
86 break;
87 case TEST_SE0_NAK:
88 seq_puts(s, "test_se0_nak\n");
89 break;
90 case TEST_PACKET:
91 seq_puts(s, "test_packet\n");
92 break;
93 case TEST_FORCE_EN:
94 seq_puts(s, "test_force_enable\n");
95 break;
96 default:
97 seq_printf(s, "UNKNOWN %d\n", dctl);
98 }
99
100 return 0;
101}
102
103static int testmode_open(struct inode *inode, struct file *file)
104{
105 return single_open(file, testmode_show, inode->i_private);
106}
107
108static const struct file_operations testmode_fops = {
109 .owner = THIS_MODULE,
110 .open = testmode_open,
111 .write = testmode_write,
112 .read = seq_read,
113 .llseek = seq_lseek,
114 .release = single_release,
115};
116
117/**
118 * state_show - debugfs: show overall driver and device state.
119 * @seq: The seq file to write to.
120 * @v: Unused parameter.
121 *
122 * This debugfs entry shows the overall state of the hardware and
123 * some general information about each of the endpoints available
124 * to the system.
125 */
126static int state_show(struct seq_file *seq, void *v)
127{
128 struct dwc2_hsotg *hsotg = seq->private;
129 int idx;
130
131 seq_printf(seq, "DCFG=0x%08x, DCTL=0x%08x, DSTS=0x%08x\n",
132 dwc2_readl(hsotg, DCFG),
133 dwc2_readl(hsotg, DCTL),
134 dwc2_readl(hsotg, DSTS));
135
136 seq_printf(seq, "DIEPMSK=0x%08x, DOEPMASK=0x%08x\n",
137 dwc2_readl(hsotg, DIEPMSK), dwc2_readl(hsotg, DOEPMSK));
138
139 seq_printf(seq, "GINTMSK=0x%08x, GINTSTS=0x%08x\n",
140 dwc2_readl(hsotg, GINTMSK),
141 dwc2_readl(hsotg, GINTSTS));
142
143 seq_printf(seq, "DAINTMSK=0x%08x, DAINT=0x%08x\n",
144 dwc2_readl(hsotg, DAINTMSK),
145 dwc2_readl(hsotg, DAINT));
146
147 seq_printf(seq, "GNPTXSTS=0x%08x, GRXSTSR=%08x\n",
148 dwc2_readl(hsotg, GNPTXSTS),
149 dwc2_readl(hsotg, GRXSTSR));
150
151 seq_puts(seq, "\nEndpoint status:\n");
152
153 for (idx = 0; idx < hsotg->num_of_eps; idx++) {
154 u32 in, out;
155
156 in = dwc2_readl(hsotg, DIEPCTL(idx));
157 out = dwc2_readl(hsotg, DOEPCTL(idx));
158
159 seq_printf(seq, "ep%d: DIEPCTL=0x%08x, DOEPCTL=0x%08x",
160 idx, in, out);
161
162 in = dwc2_readl(hsotg, DIEPTSIZ(idx));
163 out = dwc2_readl(hsotg, DOEPTSIZ(idx));
164
165 seq_printf(seq, ", DIEPTSIZ=0x%08x, DOEPTSIZ=0x%08x",
166 in, out);
167
168 seq_puts(seq, "\n");
169 }
170
171 return 0;
172}
173DEFINE_SHOW_ATTRIBUTE(state);
174
175/**
176 * fifo_show - debugfs: show the fifo information
177 * @seq: The seq_file to write data to.
178 * @v: Unused parameter.
179 *
180 * Show the FIFO information for the overall fifo and all the
181 * periodic transmission FIFOs.
182 */
183static int fifo_show(struct seq_file *seq, void *v)
184{
185 struct dwc2_hsotg *hsotg = seq->private;
186 u32 val;
187 int idx;
188
189 seq_puts(seq, "Non-periodic FIFOs:\n");
190 seq_printf(seq, "RXFIFO: Size %d\n", dwc2_readl(hsotg, GRXFSIZ));
191
192 val = dwc2_readl(hsotg, GNPTXFSIZ);
193 seq_printf(seq, "NPTXFIFO: Size %d, Start 0x%08x\n",
194 val >> FIFOSIZE_DEPTH_SHIFT,
195 val & FIFOSIZE_STARTADDR_MASK);
196
197 seq_puts(seq, "\nPeriodic TXFIFOs:\n");
198
199 for (idx = 1; idx < hsotg->num_of_eps; idx++) {
200 val = dwc2_readl(hsotg, DPTXFSIZN(idx));
201
202 seq_printf(seq, "\tDPTXFIFO%2d: Size %d, Start 0x%08x\n", idx,
203 val >> FIFOSIZE_DEPTH_SHIFT,
204 val & FIFOSIZE_STARTADDR_MASK);
205 }
206
207 return 0;
208}
209DEFINE_SHOW_ATTRIBUTE(fifo);
210
211static const char *decode_direction(int is_in)
212{
213 return is_in ? "in" : "out";
214}
215
216/**
217 * ep_show - debugfs: show the state of an endpoint.
218 * @seq: The seq_file to write data to.
219 * @v: Unused parameter.
220 *
221 * This debugfs entry shows the state of the given endpoint (one is
222 * registered for each available).
223 */
224static int ep_show(struct seq_file *seq, void *v)
225{
226 struct dwc2_hsotg_ep *ep = seq->private;
227 struct dwc2_hsotg *hsotg = ep->parent;
228 struct dwc2_hsotg_req *req;
229 int index = ep->index;
230 int show_limit = 15;
231 unsigned long flags;
232
233 seq_printf(seq, "Endpoint index %d, named %s, dir %s:\n",
234 ep->index, ep->ep.name, decode_direction(ep->dir_in));
235
236 /* first show the register state */
237
238 seq_printf(seq, "\tDIEPCTL=0x%08x, DOEPCTL=0x%08x\n",
239 dwc2_readl(hsotg, DIEPCTL(index)),
240 dwc2_readl(hsotg, DOEPCTL(index)));
241
242 seq_printf(seq, "\tDIEPDMA=0x%08x, DOEPDMA=0x%08x\n",
243 dwc2_readl(hsotg, DIEPDMA(index)),
244 dwc2_readl(hsotg, DOEPDMA(index)));
245
246 seq_printf(seq, "\tDIEPINT=0x%08x, DOEPINT=0x%08x\n",
247 dwc2_readl(hsotg, DIEPINT(index)),
248 dwc2_readl(hsotg, DOEPINT(index)));
249
250 seq_printf(seq, "\tDIEPTSIZ=0x%08x, DOEPTSIZ=0x%08x\n",
251 dwc2_readl(hsotg, DIEPTSIZ(index)),
252 dwc2_readl(hsotg, DOEPTSIZ(index)));
253
254 seq_puts(seq, "\n");
255 seq_printf(seq, "mps %d\n", ep->ep.maxpacket);
256 seq_printf(seq, "total_data=%ld\n", ep->total_data);
257
258 seq_printf(seq, "request list (%p,%p):\n",
259 ep->queue.next, ep->queue.prev);
260
261 spin_lock_irqsave(&hsotg->lock, flags);
262
263 list_for_each_entry(req, &ep->queue, queue) {
264 if (--show_limit < 0) {
265 seq_puts(seq, "not showing more requests...\n");
266 break;
267 }
268
269 seq_printf(seq, "%c req %p: %d bytes @%p, ",
270 req == ep->req ? '*' : ' ',
271 req, req->req.length, req->req.buf);
272 seq_printf(seq, "%d done, res %d\n",
273 req->req.actual, req->req.status);
274 }
275
276 spin_unlock_irqrestore(&hsotg->lock, flags);
277
278 return 0;
279}
280DEFINE_SHOW_ATTRIBUTE(ep);
281
282/**
283 * dwc2_hsotg_create_debug - create debugfs directory and files
284 * @hsotg: The driver state
285 *
286 * Create the debugfs files to allow the user to get information
287 * about the state of the system. The directory name is created
288 * with the same name as the device itself, in case we end up
289 * with multiple blocks in future systems.
290 */
291static void dwc2_hsotg_create_debug(struct dwc2_hsotg *hsotg)
292{
293 struct dentry *root;
294 unsigned int epidx;
295
296 root = hsotg->debug_root;
297
298 /* create general state file */
299 debugfs_create_file("state", 0444, root, hsotg, &state_fops);
300 debugfs_create_file("testmode", 0644, root, hsotg, &testmode_fops);
301 debugfs_create_file("fifo", 0444, root, hsotg, &fifo_fops);
302
303 /* Create one file for each out endpoint */
304 for (epidx = 0; epidx < hsotg->num_of_eps; epidx++) {
305 struct dwc2_hsotg_ep *ep;
306
307 ep = hsotg->eps_out[epidx];
308 if (ep)
309 debugfs_create_file(ep->name, 0444, root, ep, &ep_fops);
310 }
311 /* Create one file for each in endpoint. EP0 is handled with out eps */
312 for (epidx = 1; epidx < hsotg->num_of_eps; epidx++) {
313 struct dwc2_hsotg_ep *ep;
314
315 ep = hsotg->eps_in[epidx];
316 if (ep)
317 debugfs_create_file(ep->name, 0444, root, ep, &ep_fops);
318 }
319}
320#else
321static inline void dwc2_hsotg_create_debug(struct dwc2_hsotg *hsotg) {}
322#endif
323
324/* dwc2_hsotg_delete_debug is removed as cleanup in done in dwc2_debugfs_exit */
325
326#define dump_register(nm) \
327{ \
328 .name = #nm, \
329 .offset = nm, \
330}
331
332static const struct debugfs_reg32 dwc2_regs[] = {
333 /*
334 * Accessing registers like this can trigger mode mismatch interrupt.
335 * However, according to dwc2 databook, the register access, in this
336 * case, is completed on the processor bus but is ignored by the core
337 * and does not affect its operation.
338 */
339 dump_register(GOTGCTL),
340 dump_register(GOTGINT),
341 dump_register(GAHBCFG),
342 dump_register(GUSBCFG),
343 dump_register(GRSTCTL),
344 dump_register(GINTSTS),
345 dump_register(GINTMSK),
346 dump_register(GRXSTSR),
347 /* Omit GRXSTSP */
348 dump_register(GRXFSIZ),
349 dump_register(GNPTXFSIZ),
350 dump_register(GNPTXSTS),
351 dump_register(GI2CCTL),
352 dump_register(GPVNDCTL),
353 dump_register(GGPIO),
354 dump_register(GUID),
355 dump_register(GSNPSID),
356 dump_register(GHWCFG1),
357 dump_register(GHWCFG2),
358 dump_register(GHWCFG3),
359 dump_register(GHWCFG4),
360 dump_register(GLPMCFG),
361 dump_register(GPWRDN),
362 dump_register(GDFIFOCFG),
363 dump_register(ADPCTL),
364 dump_register(HPTXFSIZ),
365 dump_register(DPTXFSIZN(1)),
366 dump_register(DPTXFSIZN(2)),
367 dump_register(DPTXFSIZN(3)),
368 dump_register(DPTXFSIZN(4)),
369 dump_register(DPTXFSIZN(5)),
370 dump_register(DPTXFSIZN(6)),
371 dump_register(DPTXFSIZN(7)),
372 dump_register(DPTXFSIZN(8)),
373 dump_register(DPTXFSIZN(9)),
374 dump_register(DPTXFSIZN(10)),
375 dump_register(DPTXFSIZN(11)),
376 dump_register(DPTXFSIZN(12)),
377 dump_register(DPTXFSIZN(13)),
378 dump_register(DPTXFSIZN(14)),
379 dump_register(DPTXFSIZN(15)),
380 dump_register(DCFG),
381 dump_register(DCTL),
382 dump_register(DSTS),
383 dump_register(DIEPMSK),
384 dump_register(DOEPMSK),
385 dump_register(DAINT),
386 dump_register(DAINTMSK),
387 dump_register(DTKNQR1),
388 dump_register(DTKNQR2),
389 dump_register(DTKNQR3),
390 dump_register(DTKNQR4),
391 dump_register(DVBUSDIS),
392 dump_register(DVBUSPULSE),
393 dump_register(DIEPCTL(0)),
394 dump_register(DIEPCTL(1)),
395 dump_register(DIEPCTL(2)),
396 dump_register(DIEPCTL(3)),
397 dump_register(DIEPCTL(4)),
398 dump_register(DIEPCTL(5)),
399 dump_register(DIEPCTL(6)),
400 dump_register(DIEPCTL(7)),
401 dump_register(DIEPCTL(8)),
402 dump_register(DIEPCTL(9)),
403 dump_register(DIEPCTL(10)),
404 dump_register(DIEPCTL(11)),
405 dump_register(DIEPCTL(12)),
406 dump_register(DIEPCTL(13)),
407 dump_register(DIEPCTL(14)),
408 dump_register(DIEPCTL(15)),
409 dump_register(DOEPCTL(0)),
410 dump_register(DOEPCTL(1)),
411 dump_register(DOEPCTL(2)),
412 dump_register(DOEPCTL(3)),
413 dump_register(DOEPCTL(4)),
414 dump_register(DOEPCTL(5)),
415 dump_register(DOEPCTL(6)),
416 dump_register(DOEPCTL(7)),
417 dump_register(DOEPCTL(8)),
418 dump_register(DOEPCTL(9)),
419 dump_register(DOEPCTL(10)),
420 dump_register(DOEPCTL(11)),
421 dump_register(DOEPCTL(12)),
422 dump_register(DOEPCTL(13)),
423 dump_register(DOEPCTL(14)),
424 dump_register(DOEPCTL(15)),
425 dump_register(DIEPINT(0)),
426 dump_register(DIEPINT(1)),
427 dump_register(DIEPINT(2)),
428 dump_register(DIEPINT(3)),
429 dump_register(DIEPINT(4)),
430 dump_register(DIEPINT(5)),
431 dump_register(DIEPINT(6)),
432 dump_register(DIEPINT(7)),
433 dump_register(DIEPINT(8)),
434 dump_register(DIEPINT(9)),
435 dump_register(DIEPINT(10)),
436 dump_register(DIEPINT(11)),
437 dump_register(DIEPINT(12)),
438 dump_register(DIEPINT(13)),
439 dump_register(DIEPINT(14)),
440 dump_register(DIEPINT(15)),
441 dump_register(DOEPINT(0)),
442 dump_register(DOEPINT(1)),
443 dump_register(DOEPINT(2)),
444 dump_register(DOEPINT(3)),
445 dump_register(DOEPINT(4)),
446 dump_register(DOEPINT(5)),
447 dump_register(DOEPINT(6)),
448 dump_register(DOEPINT(7)),
449 dump_register(DOEPINT(8)),
450 dump_register(DOEPINT(9)),
451 dump_register(DOEPINT(10)),
452 dump_register(DOEPINT(11)),
453 dump_register(DOEPINT(12)),
454 dump_register(DOEPINT(13)),
455 dump_register(DOEPINT(14)),
456 dump_register(DOEPINT(15)),
457 dump_register(DIEPTSIZ(0)),
458 dump_register(DIEPTSIZ(1)),
459 dump_register(DIEPTSIZ(2)),
460 dump_register(DIEPTSIZ(3)),
461 dump_register(DIEPTSIZ(4)),
462 dump_register(DIEPTSIZ(5)),
463 dump_register(DIEPTSIZ(6)),
464 dump_register(DIEPTSIZ(7)),
465 dump_register(DIEPTSIZ(8)),
466 dump_register(DIEPTSIZ(9)),
467 dump_register(DIEPTSIZ(10)),
468 dump_register(DIEPTSIZ(11)),
469 dump_register(DIEPTSIZ(12)),
470 dump_register(DIEPTSIZ(13)),
471 dump_register(DIEPTSIZ(14)),
472 dump_register(DIEPTSIZ(15)),
473 dump_register(DOEPTSIZ(0)),
474 dump_register(DOEPTSIZ(1)),
475 dump_register(DOEPTSIZ(2)),
476 dump_register(DOEPTSIZ(3)),
477 dump_register(DOEPTSIZ(4)),
478 dump_register(DOEPTSIZ(5)),
479 dump_register(DOEPTSIZ(6)),
480 dump_register(DOEPTSIZ(7)),
481 dump_register(DOEPTSIZ(8)),
482 dump_register(DOEPTSIZ(9)),
483 dump_register(DOEPTSIZ(10)),
484 dump_register(DOEPTSIZ(11)),
485 dump_register(DOEPTSIZ(12)),
486 dump_register(DOEPTSIZ(13)),
487 dump_register(DOEPTSIZ(14)),
488 dump_register(DOEPTSIZ(15)),
489 dump_register(DIEPDMA(0)),
490 dump_register(DIEPDMA(1)),
491 dump_register(DIEPDMA(2)),
492 dump_register(DIEPDMA(3)),
493 dump_register(DIEPDMA(4)),
494 dump_register(DIEPDMA(5)),
495 dump_register(DIEPDMA(6)),
496 dump_register(DIEPDMA(7)),
497 dump_register(DIEPDMA(8)),
498 dump_register(DIEPDMA(9)),
499 dump_register(DIEPDMA(10)),
500 dump_register(DIEPDMA(11)),
501 dump_register(DIEPDMA(12)),
502 dump_register(DIEPDMA(13)),
503 dump_register(DIEPDMA(14)),
504 dump_register(DIEPDMA(15)),
505 dump_register(DOEPDMA(0)),
506 dump_register(DOEPDMA(1)),
507 dump_register(DOEPDMA(2)),
508 dump_register(DOEPDMA(3)),
509 dump_register(DOEPDMA(4)),
510 dump_register(DOEPDMA(5)),
511 dump_register(DOEPDMA(6)),
512 dump_register(DOEPDMA(7)),
513 dump_register(DOEPDMA(8)),
514 dump_register(DOEPDMA(9)),
515 dump_register(DOEPDMA(10)),
516 dump_register(DOEPDMA(11)),
517 dump_register(DOEPDMA(12)),
518 dump_register(DOEPDMA(13)),
519 dump_register(DOEPDMA(14)),
520 dump_register(DOEPDMA(15)),
521 dump_register(DTXFSTS(0)),
522 dump_register(DTXFSTS(1)),
523 dump_register(DTXFSTS(2)),
524 dump_register(DTXFSTS(3)),
525 dump_register(DTXFSTS(4)),
526 dump_register(DTXFSTS(5)),
527 dump_register(DTXFSTS(6)),
528 dump_register(DTXFSTS(7)),
529 dump_register(DTXFSTS(8)),
530 dump_register(DTXFSTS(9)),
531 dump_register(DTXFSTS(10)),
532 dump_register(DTXFSTS(11)),
533 dump_register(DTXFSTS(12)),
534 dump_register(DTXFSTS(13)),
535 dump_register(DTXFSTS(14)),
536 dump_register(DTXFSTS(15)),
537 dump_register(PCGCTL),
538 dump_register(HCFG),
539 dump_register(HFIR),
540 dump_register(HFNUM),
541 dump_register(HPTXSTS),
542 dump_register(HAINT),
543 dump_register(HAINTMSK),
544 dump_register(HFLBADDR),
545 dump_register(HPRT0),
546 dump_register(HCCHAR(0)),
547 dump_register(HCCHAR(1)),
548 dump_register(HCCHAR(2)),
549 dump_register(HCCHAR(3)),
550 dump_register(HCCHAR(4)),
551 dump_register(HCCHAR(5)),
552 dump_register(HCCHAR(6)),
553 dump_register(HCCHAR(7)),
554 dump_register(HCCHAR(8)),
555 dump_register(HCCHAR(9)),
556 dump_register(HCCHAR(10)),
557 dump_register(HCCHAR(11)),
558 dump_register(HCCHAR(12)),
559 dump_register(HCCHAR(13)),
560 dump_register(HCCHAR(14)),
561 dump_register(HCCHAR(15)),
562 dump_register(HCSPLT(0)),
563 dump_register(HCSPLT(1)),
564 dump_register(HCSPLT(2)),
565 dump_register(HCSPLT(3)),
566 dump_register(HCSPLT(4)),
567 dump_register(HCSPLT(5)),
568 dump_register(HCSPLT(6)),
569 dump_register(HCSPLT(7)),
570 dump_register(HCSPLT(8)),
571 dump_register(HCSPLT(9)),
572 dump_register(HCSPLT(10)),
573 dump_register(HCSPLT(11)),
574 dump_register(HCSPLT(12)),
575 dump_register(HCSPLT(13)),
576 dump_register(HCSPLT(14)),
577 dump_register(HCSPLT(15)),
578 dump_register(HCINT(0)),
579 dump_register(HCINT(1)),
580 dump_register(HCINT(2)),
581 dump_register(HCINT(3)),
582 dump_register(HCINT(4)),
583 dump_register(HCINT(5)),
584 dump_register(HCINT(6)),
585 dump_register(HCINT(7)),
586 dump_register(HCINT(8)),
587 dump_register(HCINT(9)),
588 dump_register(HCINT(10)),
589 dump_register(HCINT(11)),
590 dump_register(HCINT(12)),
591 dump_register(HCINT(13)),
592 dump_register(HCINT(14)),
593 dump_register(HCINT(15)),
594 dump_register(HCINTMSK(0)),
595 dump_register(HCINTMSK(1)),
596 dump_register(HCINTMSK(2)),
597 dump_register(HCINTMSK(3)),
598 dump_register(HCINTMSK(4)),
599 dump_register(HCINTMSK(5)),
600 dump_register(HCINTMSK(6)),
601 dump_register(HCINTMSK(7)),
602 dump_register(HCINTMSK(8)),
603 dump_register(HCINTMSK(9)),
604 dump_register(HCINTMSK(10)),
605 dump_register(HCINTMSK(11)),
606 dump_register(HCINTMSK(12)),
607 dump_register(HCINTMSK(13)),
608 dump_register(HCINTMSK(14)),
609 dump_register(HCINTMSK(15)),
610 dump_register(HCTSIZ(0)),
611 dump_register(HCTSIZ(1)),
612 dump_register(HCTSIZ(2)),
613 dump_register(HCTSIZ(3)),
614 dump_register(HCTSIZ(4)),
615 dump_register(HCTSIZ(5)),
616 dump_register(HCTSIZ(6)),
617 dump_register(HCTSIZ(7)),
618 dump_register(HCTSIZ(8)),
619 dump_register(HCTSIZ(9)),
620 dump_register(HCTSIZ(10)),
621 dump_register(HCTSIZ(11)),
622 dump_register(HCTSIZ(12)),
623 dump_register(HCTSIZ(13)),
624 dump_register(HCTSIZ(14)),
625 dump_register(HCTSIZ(15)),
626 dump_register(HCDMA(0)),
627 dump_register(HCDMA(1)),
628 dump_register(HCDMA(2)),
629 dump_register(HCDMA(3)),
630 dump_register(HCDMA(4)),
631 dump_register(HCDMA(5)),
632 dump_register(HCDMA(6)),
633 dump_register(HCDMA(7)),
634 dump_register(HCDMA(8)),
635 dump_register(HCDMA(9)),
636 dump_register(HCDMA(10)),
637 dump_register(HCDMA(11)),
638 dump_register(HCDMA(12)),
639 dump_register(HCDMA(13)),
640 dump_register(HCDMA(14)),
641 dump_register(HCDMA(15)),
642 dump_register(HCDMAB(0)),
643 dump_register(HCDMAB(1)),
644 dump_register(HCDMAB(2)),
645 dump_register(HCDMAB(3)),
646 dump_register(HCDMAB(4)),
647 dump_register(HCDMAB(5)),
648 dump_register(HCDMAB(6)),
649 dump_register(HCDMAB(7)),
650 dump_register(HCDMAB(8)),
651 dump_register(HCDMAB(9)),
652 dump_register(HCDMAB(10)),
653 dump_register(HCDMAB(11)),
654 dump_register(HCDMAB(12)),
655 dump_register(HCDMAB(13)),
656 dump_register(HCDMAB(14)),
657 dump_register(HCDMAB(15)),
658};
659
660#define print_param(_seq, _ptr, _param) \
661seq_printf((_seq), "%-30s: %d\n", #_param, (_ptr)->_param)
662
663#define print_param_hex(_seq, _ptr, _param) \
664seq_printf((_seq), "%-30s: 0x%x\n", #_param, (_ptr)->_param)
665
666static int params_show(struct seq_file *seq, void *v)
667{
668 struct dwc2_hsotg *hsotg = seq->private;
669 struct dwc2_core_params *p = &hsotg->params;
670 int i;
671
672 print_param(seq, p, otg_cap);
673 print_param(seq, p, dma_desc_enable);
674 print_param(seq, p, dma_desc_fs_enable);
675 print_param(seq, p, speed);
676 print_param(seq, p, enable_dynamic_fifo);
677 print_param(seq, p, en_multiple_tx_fifo);
678 print_param(seq, p, host_rx_fifo_size);
679 print_param(seq, p, host_nperio_tx_fifo_size);
680 print_param(seq, p, host_perio_tx_fifo_size);
681 print_param(seq, p, max_transfer_size);
682 print_param(seq, p, max_packet_count);
683 print_param(seq, p, host_channels);
684 print_param(seq, p, phy_type);
685 print_param(seq, p, phy_utmi_width);
686 print_param(seq, p, phy_ulpi_ddr);
687 print_param(seq, p, phy_ulpi_ext_vbus);
688 print_param(seq, p, i2c_enable);
689 print_param(seq, p, ipg_isoc_en);
690 print_param(seq, p, ulpi_fs_ls);
691 print_param(seq, p, host_support_fs_ls_low_power);
692 print_param(seq, p, host_ls_low_power_phy_clk);
693 print_param(seq, p, ts_dline);
694 print_param(seq, p, reload_ctl);
695 print_param_hex(seq, p, ahbcfg);
696 print_param(seq, p, uframe_sched);
697 print_param(seq, p, external_id_pin_ctl);
698 print_param(seq, p, power_down);
699 print_param(seq, p, lpm);
700 print_param(seq, p, lpm_clock_gating);
701 print_param(seq, p, besl);
702 print_param(seq, p, hird_threshold_en);
703 print_param(seq, p, hird_threshold);
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame^]704 print_param(seq, p, service_interval);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]705 print_param(seq, p, host_dma);
706 print_param(seq, p, g_dma);
707 print_param(seq, p, g_dma_desc);
708 print_param(seq, p, g_rx_fifo_size);
709 print_param(seq, p, g_np_tx_fifo_size);
710
711 for (i = 0; i < MAX_EPS_CHANNELS; i++) {
712 char str[32];
713
714 snprintf(str, 32, "g_tx_fifo_size[%d]", i);
715 seq_printf(seq, "%-30s: %d\n", str, p->g_tx_fifo_size[i]);
716 }
717
718 return 0;
719}
720DEFINE_SHOW_ATTRIBUTE(params);
721
722static int hw_params_show(struct seq_file *seq, void *v)
723{
724 struct dwc2_hsotg *hsotg = seq->private;
725 struct dwc2_hw_params *hw = &hsotg->hw_params;
726
727 print_param(seq, hw, op_mode);
728 print_param(seq, hw, arch);
729 print_param(seq, hw, dma_desc_enable);
730 print_param(seq, hw, enable_dynamic_fifo);
731 print_param(seq, hw, en_multiple_tx_fifo);
732 print_param(seq, hw, rx_fifo_size);
733 print_param(seq, hw, host_nperio_tx_fifo_size);
734 print_param(seq, hw, dev_nperio_tx_fifo_size);
735 print_param(seq, hw, host_perio_tx_fifo_size);
736 print_param(seq, hw, nperio_tx_q_depth);
737 print_param(seq, hw, host_perio_tx_q_depth);
738 print_param(seq, hw, dev_token_q_depth);
739 print_param(seq, hw, max_transfer_size);
740 print_param(seq, hw, max_packet_count);
741 print_param(seq, hw, host_channels);
742 print_param(seq, hw, hs_phy_type);
743 print_param(seq, hw, fs_phy_type);
744 print_param(seq, hw, i2c_enable);
745 print_param(seq, hw, num_dev_ep);
746 print_param(seq, hw, num_dev_perio_in_ep);
747 print_param(seq, hw, total_fifo_size);
748 print_param(seq, hw, power_optimized);
749 print_param(seq, hw, utmi_phy_data_width);
750 print_param_hex(seq, hw, snpsid);
751 print_param_hex(seq, hw, dev_ep_dirs);
752
753 return 0;
754}
755DEFINE_SHOW_ATTRIBUTE(hw_params);
756
757static int dr_mode_show(struct seq_file *seq, void *v)
758{
759 struct dwc2_hsotg *hsotg = seq->private;
760 const char *dr_mode = "";
761
762 device_property_read_string(hsotg->dev, "dr_mode", &dr_mode);
763 seq_printf(seq, "%s\n", dr_mode);
764 return 0;
765}
766DEFINE_SHOW_ATTRIBUTE(dr_mode);
767
768int dwc2_debugfs_init(struct dwc2_hsotg *hsotg)
769{
770 int ret;
771 struct dentry *root;
772
773 root = debugfs_create_dir(dev_name(hsotg->dev), NULL);
774 hsotg->debug_root = root;
775
776 debugfs_create_file("params", 0444, root, hsotg, &params_fops);
777 debugfs_create_file("hw_params", 0444, root, hsotg, &hw_params_fops);
778 debugfs_create_file("dr_mode", 0444, root, hsotg, &dr_mode_fops);
779
780 /* Add gadget debugfs nodes */
781 dwc2_hsotg_create_debug(hsotg);
782
783 hsotg->regset = devm_kzalloc(hsotg->dev, sizeof(*hsotg->regset),
784 GFP_KERNEL);
785 if (!hsotg->regset) {
786 ret = -ENOMEM;
787 goto err;
788 }
789
790 hsotg->regset->regs = dwc2_regs;
791 hsotg->regset->nregs = ARRAY_SIZE(dwc2_regs);
792 hsotg->regset->base = hsotg->regs;
793
794 debugfs_create_regset32("regdump", 0444, root, hsotg->regset);
795
796 return 0;
797err:
798 debugfs_remove_recursive(hsotg->debug_root);
799 return ret;
800}
801
802void dwc2_debugfs_exit(struct dwc2_hsotg *hsotg)
803{
804 debugfs_remove_recursive(hsotg->debug_root);
805 hsotg->debug_root = NULL;
806}