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Diffstat (limited to 'drivers/usb/dwc3/debugfs.c')
-rw-r--r--drivers/usb/dwc3/debugfs.c441
1 files changed, 441 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c
new file mode 100644
index 000000000000..da1ad77d8d51
--- /dev/null
+++ b/drivers/usb/dwc3/debugfs.c
@@ -0,0 +1,441 @@
1/**
2 * debugfs.c - DesignWare USB3 DRD Controller DebugFS file
3 *
4 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
5 *
6 * Authors: Felipe Balbi <balbi@ti.com>,
7 * Sebastian Andrzej Siewior <bigeasy@linutronix.de>
8 *
9 * 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>
47
48#include <asm/uaccess.h>
49
50#include "core.h"
51#include "gadget.h"
52#include "io.h"
53
54struct 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
65static 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
382static 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
397static int dwc3_regdump_open(struct inode *inode, struct file *file)
398{
399 return single_open(file, dwc3_regdump_show, inode->i_private);
400}
401
402static const struct file_operations dwc3_regdump_fops = {
403 .open = dwc3_regdump_open,
404 .read = seq_read,
405 .release = single_release,
406};
407
408int __devinit dwc3_debugfs_init(struct dwc3 *dwc)
409{
410 struct dentry *root;
411 struct dentry *file;
412 int ret;
413
414 root = debugfs_create_dir(dev_name(dwc->dev), NULL);
415 if (IS_ERR(root)){
416 ret = PTR_ERR(root);
417 goto err0;
418 }
419
420 dwc->root = root;
421
422 file = debugfs_create_file("regdump", S_IRUGO, root, dwc,
423 &dwc3_regdump_fops);
424 if (IS_ERR(file)) {
425 ret = PTR_ERR(file);
426 goto err1;
427 }
428 return 0;
429
430err1:
431 debugfs_remove_recursive(root);
432
433err0:
434 return ret;
435}
436
437void __devexit dwc3_debugfs_exit(struct dwc3 *dwc)
438{
439 debugfs_remove_recursive(dwc->root);
440 dwc->root = NULL;
441}
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-03 22:39:30 -0400