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94be70d4 LW |
1 | /* |
2 | * Copyright (C) 2011 ST-Ericsson | |
3 | * License terms: GNU General Public License (GPL) version 2 | |
4 | * Debugfs support for the AB5500 MFD driver | |
5 | */ | |
6 | ||
858a6303 | 7 | #include <linux/module.h> |
94be70d4 LW |
8 | #include <linux/debugfs.h> |
9 | #include <linux/seq_file.h> | |
94be70d4 | 10 | #include <linux/mfd/abx500.h> |
ee66e653 | 11 | #include <linux/mfd/abx500/ab5500.h> |
94be70d4 LW |
12 | #include <linux/uaccess.h> |
13 | ||
14 | #include "ab5500-core.h" | |
15 | #include "ab5500-debugfs.h" | |
16 | ||
17 | static struct ab5500_i2c_ranges ab5500_reg_ranges[AB5500_NUM_BANKS] = { | |
18 | [AB5500_BANK_LED] = { | |
19 | .bankid = AB5500_BANK_LED, | |
20 | .nranges = 1, | |
21 | .range = (struct ab5500_reg_range[]) { | |
22 | { | |
23 | .first = 0x00, | |
24 | .last = 0x0C, | |
25 | .perm = AB5500_PERM_RW, | |
26 | }, | |
27 | }, | |
28 | }, | |
29 | [AB5500_BANK_ADC] = { | |
30 | .bankid = AB5500_BANK_ADC, | |
31 | .nranges = 6, | |
32 | .range = (struct ab5500_reg_range[]) { | |
33 | { | |
34 | .first = 0x1F, | |
35 | .last = 0x22, | |
36 | .perm = AB5500_PERM_RO, | |
37 | }, | |
38 | { | |
39 | .first = 0x23, | |
40 | .last = 0x24, | |
41 | .perm = AB5500_PERM_RW, | |
42 | }, | |
43 | { | |
44 | .first = 0x26, | |
45 | .last = 0x2D, | |
46 | .perm = AB5500_PERM_RO, | |
47 | }, | |
48 | { | |
49 | .first = 0x2F, | |
50 | .last = 0x34, | |
51 | .perm = AB5500_PERM_RW, | |
52 | }, | |
53 | { | |
54 | .first = 0x37, | |
55 | .last = 0x57, | |
56 | .perm = AB5500_PERM_RW, | |
57 | }, | |
58 | { | |
59 | .first = 0x58, | |
60 | .last = 0x58, | |
61 | .perm = AB5500_PERM_RO, | |
62 | }, | |
63 | }, | |
64 | }, | |
65 | [AB5500_BANK_RTC] = { | |
66 | .bankid = AB5500_BANK_RTC, | |
67 | .nranges = 2, | |
68 | .range = (struct ab5500_reg_range[]) { | |
69 | { | |
70 | .first = 0x00, | |
71 | .last = 0x04, | |
72 | .perm = AB5500_PERM_RW, | |
73 | }, | |
74 | { | |
75 | .first = 0x06, | |
76 | .last = 0x0C, | |
77 | .perm = AB5500_PERM_RW, | |
78 | }, | |
79 | }, | |
80 | }, | |
81 | [AB5500_BANK_STARTUP] = { | |
82 | .bankid = AB5500_BANK_STARTUP, | |
83 | .nranges = 12, | |
84 | .range = (struct ab5500_reg_range[]) { | |
85 | { | |
86 | .first = 0x00, | |
87 | .last = 0x01, | |
88 | .perm = AB5500_PERM_RW, | |
89 | }, | |
90 | { | |
91 | .first = 0x1F, | |
92 | .last = 0x1F, | |
93 | .perm = AB5500_PERM_RW, | |
94 | }, | |
95 | { | |
96 | .first = 0x2E, | |
97 | .last = 0x2E, | |
98 | .perm = AB5500_PERM_RO, | |
99 | }, | |
100 | { | |
101 | .first = 0x2F, | |
102 | .last = 0x30, | |
103 | .perm = AB5500_PERM_RW, | |
104 | }, | |
105 | { | |
106 | .first = 0x50, | |
107 | .last = 0x51, | |
108 | .perm = AB5500_PERM_RW, | |
109 | }, | |
110 | { | |
111 | .first = 0x60, | |
112 | .last = 0x61, | |
113 | .perm = AB5500_PERM_RW, | |
114 | }, | |
115 | { | |
116 | .first = 0x66, | |
117 | .last = 0x8A, | |
118 | .perm = AB5500_PERM_RW, | |
119 | }, | |
120 | { | |
121 | .first = 0x8C, | |
122 | .last = 0x96, | |
123 | .perm = AB5500_PERM_RW, | |
124 | }, | |
125 | { | |
126 | .first = 0xAA, | |
127 | .last = 0xB4, | |
128 | .perm = AB5500_PERM_RW, | |
129 | }, | |
130 | { | |
131 | .first = 0xB7, | |
132 | .last = 0xBF, | |
133 | .perm = AB5500_PERM_RW, | |
134 | }, | |
135 | { | |
136 | .first = 0xC1, | |
137 | .last = 0xCA, | |
138 | .perm = AB5500_PERM_RW, | |
139 | }, | |
140 | { | |
141 | .first = 0xD3, | |
142 | .last = 0xE0, | |
143 | .perm = AB5500_PERM_RW, | |
144 | }, | |
145 | }, | |
146 | }, | |
147 | [AB5500_BANK_DBI_ECI] = { | |
148 | .bankid = AB5500_BANK_DBI_ECI, | |
149 | .nranges = 3, | |
150 | .range = (struct ab5500_reg_range[]) { | |
151 | { | |
152 | .first = 0x00, | |
153 | .last = 0x07, | |
154 | .perm = AB5500_PERM_RW, | |
155 | }, | |
156 | { | |
157 | .first = 0x10, | |
158 | .last = 0x10, | |
159 | .perm = AB5500_PERM_RW, | |
160 | }, | |
161 | { | |
162 | .first = 0x13, | |
163 | .last = 0x13, | |
164 | .perm = AB5500_PERM_RW, | |
165 | }, | |
166 | }, | |
167 | }, | |
168 | [AB5500_BANK_CHG] = { | |
169 | .bankid = AB5500_BANK_CHG, | |
170 | .nranges = 2, | |
171 | .range = (struct ab5500_reg_range[]) { | |
172 | { | |
173 | .first = 0x11, | |
174 | .last = 0x11, | |
175 | .perm = AB5500_PERM_RO, | |
176 | }, | |
177 | { | |
178 | .first = 0x12, | |
179 | .last = 0x1B, | |
180 | .perm = AB5500_PERM_RW, | |
181 | }, | |
182 | }, | |
183 | }, | |
184 | [AB5500_BANK_FG_BATTCOM_ACC] = { | |
185 | .bankid = AB5500_BANK_FG_BATTCOM_ACC, | |
186 | .nranges = 2, | |
187 | .range = (struct ab5500_reg_range[]) { | |
188 | { | |
189 | .first = 0x00, | |
190 | .last = 0x0B, | |
191 | .perm = AB5500_PERM_RO, | |
192 | }, | |
193 | { | |
194 | .first = 0x0C, | |
195 | .last = 0x10, | |
196 | .perm = AB5500_PERM_RW, | |
197 | }, | |
198 | }, | |
199 | }, | |
200 | [AB5500_BANK_USB] = { | |
201 | .bankid = AB5500_BANK_USB, | |
202 | .nranges = 12, | |
203 | .range = (struct ab5500_reg_range[]) { | |
204 | { | |
205 | .first = 0x01, | |
206 | .last = 0x01, | |
207 | .perm = AB5500_PERM_RW, | |
208 | }, | |
209 | { | |
210 | .first = 0x80, | |
211 | .last = 0x83, | |
212 | .perm = AB5500_PERM_RW, | |
213 | }, | |
214 | { | |
215 | .first = 0x87, | |
216 | .last = 0x8A, | |
217 | .perm = AB5500_PERM_RW, | |
218 | }, | |
219 | { | |
220 | .first = 0x8B, | |
221 | .last = 0x8B, | |
222 | .perm = AB5500_PERM_RO, | |
223 | }, | |
224 | { | |
225 | .first = 0x91, | |
226 | .last = 0x92, | |
227 | .perm = AB5500_PERM_RO, | |
228 | }, | |
229 | { | |
230 | .first = 0x93, | |
231 | .last = 0x93, | |
232 | .perm = AB5500_PERM_RW, | |
233 | }, | |
234 | { | |
235 | .first = 0x94, | |
236 | .last = 0x94, | |
237 | .perm = AB5500_PERM_RO, | |
238 | }, | |
239 | { | |
240 | .first = 0xA8, | |
241 | .last = 0xB0, | |
242 | .perm = AB5500_PERM_RO, | |
243 | }, | |
244 | { | |
245 | .first = 0xB2, | |
246 | .last = 0xB2, | |
247 | .perm = AB5500_PERM_RO, | |
248 | }, | |
249 | { | |
250 | .first = 0xB4, | |
251 | .last = 0xBC, | |
252 | .perm = AB5500_PERM_RO, | |
253 | }, | |
254 | { | |
255 | .first = 0xBF, | |
256 | .last = 0xBF, | |
257 | .perm = AB5500_PERM_RO, | |
258 | }, | |
259 | { | |
260 | .first = 0xC1, | |
261 | .last = 0xC5, | |
262 | .perm = AB5500_PERM_RO, | |
263 | }, | |
264 | }, | |
265 | }, | |
266 | [AB5500_BANK_IT] = { | |
267 | .bankid = AB5500_BANK_IT, | |
268 | .nranges = 4, | |
269 | .range = (struct ab5500_reg_range[]) { | |
270 | { | |
271 | .first = 0x00, | |
272 | .last = 0x02, | |
273 | .perm = AB5500_PERM_RO, | |
274 | }, | |
275 | { | |
276 | .first = 0x20, | |
277 | .last = 0x36, | |
278 | .perm = AB5500_PERM_RO, | |
279 | }, | |
280 | { | |
281 | .first = 0x40, | |
282 | .last = 0x56, | |
283 | .perm = AB5500_PERM_RO, | |
284 | }, | |
285 | { | |
286 | .first = 0x60, | |
287 | .last = 0x76, | |
288 | .perm = AB5500_PERM_RO, | |
289 | }, | |
290 | }, | |
291 | }, | |
292 | [AB5500_BANK_VDDDIG_IO_I2C_CLK_TST] = { | |
293 | .bankid = AB5500_BANK_VDDDIG_IO_I2C_CLK_TST, | |
294 | .nranges = 7, | |
295 | .range = (struct ab5500_reg_range[]) { | |
296 | { | |
297 | .first = 0x02, | |
298 | .last = 0x02, | |
299 | .perm = AB5500_PERM_RW, | |
300 | }, | |
301 | { | |
302 | .first = 0x12, | |
303 | .last = 0x12, | |
304 | .perm = AB5500_PERM_RW, | |
305 | }, | |
306 | { | |
307 | .first = 0x30, | |
308 | .last = 0x34, | |
309 | .perm = AB5500_PERM_RW, | |
310 | }, | |
311 | { | |
312 | .first = 0x40, | |
313 | .last = 0x44, | |
314 | .perm = AB5500_PERM_RW, | |
315 | }, | |
316 | { | |
317 | .first = 0x50, | |
318 | .last = 0x54, | |
319 | .perm = AB5500_PERM_RW, | |
320 | }, | |
321 | { | |
322 | .first = 0x60, | |
323 | .last = 0x64, | |
324 | .perm = AB5500_PERM_RW, | |
325 | }, | |
326 | { | |
327 | .first = 0x70, | |
328 | .last = 0x74, | |
329 | .perm = AB5500_PERM_RW, | |
330 | }, | |
331 | }, | |
332 | }, | |
333 | [AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP] = { | |
334 | .bankid = AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP, | |
335 | .nranges = 13, | |
336 | .range = (struct ab5500_reg_range[]) { | |
337 | { | |
338 | .first = 0x01, | |
339 | .last = 0x01, | |
340 | .perm = AB5500_PERM_RW, | |
341 | }, | |
342 | { | |
343 | .first = 0x02, | |
344 | .last = 0x02, | |
345 | .perm = AB5500_PERM_RO, | |
346 | }, | |
347 | { | |
348 | .first = 0x0D, | |
349 | .last = 0x0F, | |
350 | .perm = AB5500_PERM_RW, | |
351 | }, | |
352 | { | |
353 | .first = 0x1C, | |
354 | .last = 0x1C, | |
355 | .perm = AB5500_PERM_RW, | |
356 | }, | |
357 | { | |
358 | .first = 0x1E, | |
359 | .last = 0x1E, | |
360 | .perm = AB5500_PERM_RW, | |
361 | }, | |
362 | { | |
363 | .first = 0x20, | |
364 | .last = 0x21, | |
365 | .perm = AB5500_PERM_RW, | |
366 | }, | |
367 | { | |
368 | .first = 0x25, | |
369 | .last = 0x25, | |
370 | .perm = AB5500_PERM_RW, | |
371 | }, | |
372 | { | |
373 | .first = 0x28, | |
374 | .last = 0x2A, | |
375 | .perm = AB5500_PERM_RW, | |
376 | }, | |
377 | { | |
378 | .first = 0x30, | |
379 | .last = 0x33, | |
380 | .perm = AB5500_PERM_RW, | |
381 | }, | |
382 | { | |
383 | .first = 0x40, | |
384 | .last = 0x43, | |
385 | .perm = AB5500_PERM_RW, | |
386 | }, | |
387 | { | |
388 | .first = 0x50, | |
389 | .last = 0x53, | |
390 | .perm = AB5500_PERM_RW, | |
391 | }, | |
392 | { | |
393 | .first = 0x60, | |
394 | .last = 0x63, | |
395 | .perm = AB5500_PERM_RW, | |
396 | }, | |
397 | { | |
398 | .first = 0x70, | |
399 | .last = 0x73, | |
400 | .perm = AB5500_PERM_RW, | |
401 | }, | |
402 | }, | |
403 | }, | |
404 | [AB5500_BANK_VIBRA] = { | |
405 | .bankid = AB5500_BANK_VIBRA, | |
406 | .nranges = 2, | |
407 | .range = (struct ab5500_reg_range[]) { | |
408 | { | |
409 | .first = 0x10, | |
410 | .last = 0x13, | |
411 | .perm = AB5500_PERM_RW, | |
412 | }, | |
413 | { | |
414 | .first = 0xFE, | |
415 | .last = 0xFE, | |
416 | .perm = AB5500_PERM_RW, | |
417 | }, | |
418 | }, | |
419 | }, | |
420 | [AB5500_BANK_AUDIO_HEADSETUSB] = { | |
421 | .bankid = AB5500_BANK_AUDIO_HEADSETUSB, | |
422 | .nranges = 2, | |
423 | .range = (struct ab5500_reg_range[]) { | |
424 | { | |
425 | .first = 0x00, | |
426 | .last = 0x48, | |
427 | .perm = AB5500_PERM_RW, | |
428 | }, | |
429 | { | |
430 | .first = 0xEB, | |
431 | .last = 0xFB, | |
432 | .perm = AB5500_PERM_RW, | |
433 | }, | |
434 | }, | |
435 | }, | |
436 | [AB5500_BANK_SIM_USBSIM] = { | |
437 | .bankid = AB5500_BANK_SIM_USBSIM, | |
438 | .nranges = 1, | |
439 | .range = (struct ab5500_reg_range[]) { | |
440 | { | |
441 | .first = 0x13, | |
442 | .last = 0x19, | |
443 | .perm = AB5500_PERM_RW, | |
444 | }, | |
445 | }, | |
446 | }, | |
447 | [AB5500_BANK_VDENC] = { | |
448 | .bankid = AB5500_BANK_VDENC, | |
449 | .nranges = 12, | |
450 | .range = (struct ab5500_reg_range[]) { | |
451 | { | |
452 | .first = 0x00, | |
453 | .last = 0x08, | |
454 | .perm = AB5500_PERM_RW, | |
455 | }, | |
456 | { | |
457 | .first = 0x09, | |
458 | .last = 0x09, | |
459 | .perm = AB5500_PERM_RO, | |
460 | }, | |
461 | { | |
462 | .first = 0x0A, | |
463 | .last = 0x12, | |
464 | .perm = AB5500_PERM_RW, | |
465 | }, | |
466 | { | |
467 | .first = 0x15, | |
468 | .last = 0x19, | |
469 | .perm = AB5500_PERM_RW, | |
470 | }, | |
471 | { | |
472 | .first = 0x1B, | |
473 | .last = 0x21, | |
474 | .perm = AB5500_PERM_RW, | |
475 | }, | |
476 | { | |
477 | .first = 0x27, | |
478 | .last = 0x2C, | |
479 | .perm = AB5500_PERM_RW, | |
480 | }, | |
481 | { | |
482 | .first = 0x41, | |
483 | .last = 0x41, | |
484 | .perm = AB5500_PERM_RW, | |
485 | }, | |
486 | { | |
487 | .first = 0x45, | |
488 | .last = 0x5B, | |
489 | .perm = AB5500_PERM_RW, | |
490 | }, | |
491 | { | |
492 | .first = 0x5D, | |
493 | .last = 0x5D, | |
494 | .perm = AB5500_PERM_RW, | |
495 | }, | |
496 | { | |
497 | .first = 0x69, | |
498 | .last = 0x69, | |
499 | .perm = AB5500_PERM_RW, | |
500 | }, | |
501 | { | |
502 | .first = 0x6C, | |
503 | .last = 0x6D, | |
504 | .perm = AB5500_PERM_RW, | |
505 | }, | |
506 | { | |
507 | .first = 0x80, | |
508 | .last = 0x81, | |
509 | .perm = AB5500_PERM_RW, | |
510 | }, | |
511 | }, | |
512 | }, | |
513 | }; | |
514 | ||
515 | static int ab5500_registers_print(struct seq_file *s, void *p) | |
516 | { | |
517 | struct ab5500 *ab = s->private; | |
518 | unsigned int i; | |
519 | u8 bank = (u8)ab->debug_bank; | |
520 | ||
521 | seq_printf(s, "ab5500 register values:\n"); | |
522 | for (bank = 0; bank < AB5500_NUM_BANKS; bank++) { | |
523 | seq_printf(s, " bank %u, %s (0x%x):\n", bank, | |
524 | bankinfo[bank].name, | |
525 | bankinfo[bank].slave_addr); | |
526 | for (i = 0; i < ab5500_reg_ranges[bank].nranges; i++) { | |
527 | u8 reg; | |
528 | int err; | |
529 | ||
530 | for (reg = ab5500_reg_ranges[bank].range[i].first; | |
531 | reg <= ab5500_reg_ranges[bank].range[i].last; | |
532 | reg++) { | |
533 | u8 value; | |
534 | ||
535 | err = ab5500_get_register_interruptible_raw(ab, | |
536 | bank, reg, | |
537 | &value); | |
538 | if (err < 0) { | |
539 | dev_err(ab->dev, "get_reg failed %d" | |
540 | "bank 0x%x reg 0x%x\n", | |
541 | err, bank, reg); | |
542 | return err; | |
543 | } | |
544 | ||
545 | err = seq_printf(s, "[%d/0x%02X]: 0x%02X\n", | |
546 | bank, reg, value); | |
547 | if (err < 0) { | |
548 | dev_err(ab->dev, | |
549 | "seq_printf overflow\n"); | |
550 | /* | |
551 | * Error is not returned here since | |
552 | * the output is wanted in any case | |
553 | */ | |
554 | return 0; | |
555 | } | |
556 | } | |
557 | } | |
558 | } | |
559 | return 0; | |
560 | } | |
561 | ||
562 | static int ab5500_registers_open(struct inode *inode, struct file *file) | |
563 | { | |
564 | return single_open(file, ab5500_registers_print, inode->i_private); | |
565 | } | |
566 | ||
567 | static const struct file_operations ab5500_registers_fops = { | |
568 | .open = ab5500_registers_open, | |
569 | .read = seq_read, | |
570 | .llseek = seq_lseek, | |
571 | .release = single_release, | |
572 | .owner = THIS_MODULE, | |
573 | }; | |
574 | ||
575 | static int ab5500_bank_print(struct seq_file *s, void *p) | |
576 | { | |
577 | struct ab5500 *ab = s->private; | |
578 | ||
579 | seq_printf(s, "%d\n", ab->debug_bank); | |
580 | return 0; | |
581 | } | |
582 | ||
583 | static int ab5500_bank_open(struct inode *inode, struct file *file) | |
584 | { | |
585 | return single_open(file, ab5500_bank_print, inode->i_private); | |
586 | } | |
587 | ||
588 | static ssize_t ab5500_bank_write(struct file *file, | |
589 | const char __user *user_buf, | |
590 | size_t count, loff_t *ppos) | |
591 | { | |
592 | struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private; | |
593 | char buf[32]; | |
594 | int buf_size; | |
595 | unsigned long user_bank; | |
596 | int err; | |
597 | ||
598 | /* Get userspace string and assure termination */ | |
599 | buf_size = min(count, (sizeof(buf) - 1)); | |
600 | if (copy_from_user(buf, user_buf, buf_size)) | |
601 | return -EFAULT; | |
602 | buf[buf_size] = 0; | |
603 | ||
604 | err = strict_strtoul(buf, 0, &user_bank); | |
605 | if (err) | |
606 | return -EINVAL; | |
607 | ||
608 | if (user_bank >= AB5500_NUM_BANKS) { | |
609 | dev_err(ab->dev, | |
610 | "debugfs error input > number of banks\n"); | |
611 | return -EINVAL; | |
612 | } | |
613 | ||
614 | ab->debug_bank = user_bank; | |
615 | ||
616 | return buf_size; | |
617 | } | |
618 | ||
619 | static int ab5500_address_print(struct seq_file *s, void *p) | |
620 | { | |
621 | struct ab5500 *ab = s->private; | |
622 | ||
623 | seq_printf(s, "0x%02X\n", ab->debug_address); | |
624 | return 0; | |
625 | } | |
626 | ||
627 | static int ab5500_address_open(struct inode *inode, struct file *file) | |
628 | { | |
629 | return single_open(file, ab5500_address_print, inode->i_private); | |
630 | } | |
631 | ||
632 | static ssize_t ab5500_address_write(struct file *file, | |
633 | const char __user *user_buf, | |
634 | size_t count, loff_t *ppos) | |
635 | { | |
636 | struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private; | |
637 | char buf[32]; | |
638 | int buf_size; | |
639 | unsigned long user_address; | |
640 | int err; | |
641 | ||
642 | /* Get userspace string and assure termination */ | |
643 | buf_size = min(count, (sizeof(buf) - 1)); | |
644 | if (copy_from_user(buf, user_buf, buf_size)) | |
645 | return -EFAULT; | |
646 | buf[buf_size] = 0; | |
647 | ||
648 | err = strict_strtoul(buf, 0, &user_address); | |
649 | if (err) | |
650 | return -EINVAL; | |
651 | if (user_address > 0xff) { | |
652 | dev_err(ab->dev, | |
653 | "debugfs error input > 0xff\n"); | |
654 | return -EINVAL; | |
655 | } | |
656 | ab->debug_address = user_address; | |
657 | return buf_size; | |
658 | } | |
659 | ||
660 | static int ab5500_val_print(struct seq_file *s, void *p) | |
661 | { | |
662 | struct ab5500 *ab = s->private; | |
663 | int err; | |
664 | u8 regvalue; | |
665 | ||
666 | err = ab5500_get_register_interruptible_raw(ab, (u8)ab->debug_bank, | |
667 | (u8)ab->debug_address, ®value); | |
668 | if (err) { | |
669 | dev_err(ab->dev, "get_reg failed %d, bank 0x%x" | |
670 | ", reg 0x%x\n", err, ab->debug_bank, | |
671 | ab->debug_address); | |
672 | return -EINVAL; | |
673 | } | |
674 | seq_printf(s, "0x%02X\n", regvalue); | |
675 | ||
676 | return 0; | |
677 | } | |
678 | ||
679 | static int ab5500_val_open(struct inode *inode, struct file *file) | |
680 | { | |
681 | return single_open(file, ab5500_val_print, inode->i_private); | |
682 | } | |
683 | ||
684 | static ssize_t ab5500_val_write(struct file *file, | |
685 | const char __user *user_buf, | |
686 | size_t count, loff_t *ppos) | |
687 | { | |
688 | struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private; | |
689 | char buf[32]; | |
690 | int buf_size; | |
691 | unsigned long user_val; | |
692 | int err; | |
693 | u8 regvalue; | |
694 | ||
695 | /* Get userspace string and assure termination */ | |
696 | buf_size = min(count, (sizeof(buf)-1)); | |
697 | if (copy_from_user(buf, user_buf, buf_size)) | |
698 | return -EFAULT; | |
699 | buf[buf_size] = 0; | |
700 | ||
701 | err = strict_strtoul(buf, 0, &user_val); | |
702 | if (err) | |
703 | return -EINVAL; | |
704 | if (user_val > 0xff) { | |
705 | dev_err(ab->dev, | |
706 | "debugfs error input > 0xff\n"); | |
707 | return -EINVAL; | |
708 | } | |
709 | err = ab5500_mask_and_set_register_interruptible_raw( | |
710 | ab, (u8)ab->debug_bank, | |
711 | (u8)ab->debug_address, 0xFF, (u8)user_val); | |
712 | if (err) | |
713 | return -EINVAL; | |
714 | ||
715 | ab5500_get_register_interruptible_raw(ab, (u8)ab->debug_bank, | |
716 | (u8)ab->debug_address, ®value); | |
717 | if (err) | |
718 | return -EINVAL; | |
719 | ||
720 | return buf_size; | |
721 | } | |
722 | ||
723 | static const struct file_operations ab5500_bank_fops = { | |
724 | .open = ab5500_bank_open, | |
725 | .write = ab5500_bank_write, | |
726 | .read = seq_read, | |
727 | .llseek = seq_lseek, | |
728 | .release = single_release, | |
729 | .owner = THIS_MODULE, | |
730 | }; | |
731 | ||
732 | static const struct file_operations ab5500_address_fops = { | |
733 | .open = ab5500_address_open, | |
734 | .write = ab5500_address_write, | |
735 | .read = seq_read, | |
736 | .llseek = seq_lseek, | |
737 | .release = single_release, | |
738 | .owner = THIS_MODULE, | |
739 | }; | |
740 | ||
741 | static const struct file_operations ab5500_val_fops = { | |
742 | .open = ab5500_val_open, | |
743 | .write = ab5500_val_write, | |
744 | .read = seq_read, | |
745 | .llseek = seq_lseek, | |
746 | .release = single_release, | |
747 | .owner = THIS_MODULE, | |
748 | }; | |
749 | ||
750 | static struct dentry *ab5500_dir; | |
751 | static struct dentry *ab5500_reg_file; | |
752 | static struct dentry *ab5500_bank_file; | |
753 | static struct dentry *ab5500_address_file; | |
754 | static struct dentry *ab5500_val_file; | |
755 | ||
756 | void __init ab5500_setup_debugfs(struct ab5500 *ab) | |
757 | { | |
758 | ab->debug_bank = AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP; | |
759 | ab->debug_address = AB5500_CHIP_ID; | |
760 | ||
761 | ab5500_dir = debugfs_create_dir("ab5500", NULL); | |
762 | if (!ab5500_dir) | |
763 | goto exit_no_debugfs; | |
764 | ||
765 | ab5500_reg_file = debugfs_create_file("all-bank-registers", | |
766 | S_IRUGO, ab5500_dir, ab, &ab5500_registers_fops); | |
767 | if (!ab5500_reg_file) | |
768 | goto exit_destroy_dir; | |
769 | ||
770 | ab5500_bank_file = debugfs_create_file("register-bank", | |
771 | (S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_bank_fops); | |
772 | if (!ab5500_bank_file) | |
773 | goto exit_destroy_reg; | |
774 | ||
775 | ab5500_address_file = debugfs_create_file("register-address", | |
776 | (S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_address_fops); | |
777 | if (!ab5500_address_file) | |
778 | goto exit_destroy_bank; | |
779 | ||
780 | ab5500_val_file = debugfs_create_file("register-value", | |
781 | (S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_val_fops); | |
782 | if (!ab5500_val_file) | |
783 | goto exit_destroy_address; | |
784 | ||
785 | return; | |
786 | ||
787 | exit_destroy_address: | |
788 | debugfs_remove(ab5500_address_file); | |
789 | exit_destroy_bank: | |
790 | debugfs_remove(ab5500_bank_file); | |
791 | exit_destroy_reg: | |
792 | debugfs_remove(ab5500_reg_file); | |
793 | exit_destroy_dir: | |
794 | debugfs_remove(ab5500_dir); | |
795 | exit_no_debugfs: | |
796 | dev_err(ab->dev, "failed to create debugfs entries.\n"); | |
797 | return; | |
798 | } | |
799 | ||
800 | void __exit ab5500_remove_debugfs(void) | |
801 | { | |
802 | debugfs_remove(ab5500_val_file); | |
803 | debugfs_remove(ab5500_address_file); | |
804 | debugfs_remove(ab5500_bank_file); | |
805 | debugfs_remove(ab5500_reg_file); | |
806 | debugfs_remove(ab5500_dir); | |
807 | } |