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sfc: Don't use enums as a bitmask.
[zen-stable.git] / drivers / net / wireless / libertas / debugfs.c
blob23250f6217615f9462aac7f73c2329dfa0944973
1 #include <linux/dcache.h>
2 #include <linux/debugfs.h>
3 #include <linux/delay.h>
4 #include <linux/mm.h>
5 #include <linux/string.h>
6 #include <linux/slab.h>
7
8 #include "decl.h"
9 #include "cmd.h"
10 #include "debugfs.h"
11
12 static struct dentry *lbs_dir;
13 static char *szStates[] = {
14 "Connected",
15 "Disconnected"
16 };
17
18 #ifdef PROC_DEBUG
19 static void lbs_debug_init(struct lbs_private *priv);
20 #endif
21
22 static int open_file_generic(struct inode *inode, struct file *file)
23 {
24 file->private_data = inode->i_private;
25 return 0;
26 }
27
28 static ssize_t write_file_dummy(struct file *file, const char __user *buf,
29 size_t count, loff_t *ppos)
30 {
31 return -EINVAL;
32 }
33
34 static const size_t len = PAGE_SIZE;
35
36 static ssize_t lbs_dev_info(struct file *file, char __user *userbuf,
37 size_t count, loff_t *ppos)
38 {
39 struct lbs_private *priv = file->private_data;
40 size_t pos = 0;
41 unsigned long addr = get_zeroed_page(GFP_KERNEL);
42 char *buf = (char *)addr;
43 ssize_t res;
44 if (!buf)
45 return -ENOMEM;
46
47 pos += snprintf(buf+pos, len-pos, "state = %s\n",
48 szStates[priv->connect_status]);
49 pos += snprintf(buf+pos, len-pos, "region_code = %02x\n",
50 (u32) priv->regioncode);
51
52 res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
53
54 free_page(addr);
55 return res;
56 }
57
58 static ssize_t lbs_sleepparams_write(struct file *file,
59 const char __user *user_buf, size_t count,
60 loff_t *ppos)
61 {
62 struct lbs_private *priv = file->private_data;
63 ssize_t buf_size, ret;
64 struct sleep_params sp;
65 int p1, p2, p3, p4, p5, p6;
66 unsigned long addr = get_zeroed_page(GFP_KERNEL);
67 char *buf = (char *)addr;
68 if (!buf)
69 return -ENOMEM;
70
71 buf_size = min(count, len - 1);
72 if (copy_from_user(buf, user_buf, buf_size)) {
73 ret = -EFAULT;
74 goto out_unlock;
75 }
76 ret = sscanf(buf, "%d %d %d %d %d %d", &p1, &p2, &p3, &p4, &p5, &p6);
77 if (ret != 6) {
78 ret = -EINVAL;
79 goto out_unlock;
80 }
81 sp.sp_error = p1;
82 sp.sp_offset = p2;
83 sp.sp_stabletime = p3;
84 sp.sp_calcontrol = p4;
85 sp.sp_extsleepclk = p5;
86 sp.sp_reserved = p6;
87
88 ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_SET, &sp);
89 if (!ret)
90 ret = count;
91 else if (ret > 0)
92 ret = -EINVAL;
93
94 out_unlock:
95 free_page(addr);
96 return ret;
97 }
98
99 static ssize_t lbs_sleepparams_read(struct file *file, char __user *userbuf,
100 size_t count, loff_t *ppos)
101 {
102 struct lbs_private *priv = file->private_data;
103 ssize_t ret;
104 size_t pos = 0;
105 struct sleep_params sp;
106 unsigned long addr = get_zeroed_page(GFP_KERNEL);
107 char *buf = (char *)addr;
108 if (!buf)
109 return -ENOMEM;
110
111 ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_GET, &sp);
112 if (ret)
113 goto out_unlock;
114
115 pos += snprintf(buf, len, "%d %d %d %d %d %d\n", sp.sp_error,
116 sp.sp_offset, sp.sp_stabletime,
117 sp.sp_calcontrol, sp.sp_extsleepclk,
118 sp.sp_reserved);
119
120 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
121
122 out_unlock:
123 free_page(addr);
124 return ret;
125 }
126
127 static ssize_t lbs_host_sleep_write(struct file *file,
128 const char __user *user_buf, size_t count,
129 loff_t *ppos)
130 {
131 struct lbs_private *priv = file->private_data;
132 ssize_t buf_size, ret;
133 int host_sleep;
134 unsigned long addr = get_zeroed_page(GFP_KERNEL);
135 char *buf = (char *)addr;
136 if (!buf)
137 return -ENOMEM;
138
139 buf_size = min(count, len - 1);
140 if (copy_from_user(buf, user_buf, buf_size)) {
141 ret = -EFAULT;
142 goto out_unlock;
143 }
144 ret = sscanf(buf, "%d", &host_sleep);
145 if (ret != 1) {
146 ret = -EINVAL;
147 goto out_unlock;
148 }
149
150 if (host_sleep == 0)
151 ret = lbs_set_host_sleep(priv, 0);
152 else if (host_sleep == 1) {
153 if (priv->wol_criteria == EHS_REMOVE_WAKEUP) {
154 netdev_info(priv->dev,
155 "wake parameters not configured\n");
156 ret = -EINVAL;
157 goto out_unlock;
158 }
159 ret = lbs_set_host_sleep(priv, 1);
160 } else {
161 netdev_err(priv->dev, "invalid option\n");
162 ret = -EINVAL;
163 }
164
165 if (!ret)
166 ret = count;
167
168 out_unlock:
169 free_page(addr);
170 return ret;
171 }
172
173 static ssize_t lbs_host_sleep_read(struct file *file, char __user *userbuf,
174 size_t count, loff_t *ppos)
175 {
176 struct lbs_private *priv = file->private_data;
177 ssize_t ret;
178 size_t pos = 0;
179 unsigned long addr = get_zeroed_page(GFP_KERNEL);
180 char *buf = (char *)addr;
181 if (!buf)
182 return -ENOMEM;
183
184 pos += snprintf(buf, len, "%d\n", priv->is_host_sleep_activated);
185
186 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
187
188 free_page(addr);
189 return ret;
190 }
191
192 /*
193 * When calling CMD_802_11_SUBSCRIBE_EVENT with CMD_ACT_GET, me might
194 * get a bunch of vendor-specific TLVs (a.k.a. IEs) back from the
195 * firmware. Here's an example:
196 * 04 01 02 00 00 00 05 01 02 00 00 00 06 01 02 00
197 * 00 00 07 01 02 00 3c 00 00 00 00 00 00 00 03 03
198 * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
199 *
200 * The 04 01 is the TLV type (here TLV_TYPE_RSSI_LOW), 02 00 is the length,
201 * 00 00 are the data bytes of this TLV. For this TLV, their meaning is
202 * defined in mrvlietypes_thresholds
203 *
204 * This function searches in this TLV data chunk for a given TLV type
205 * and returns a pointer to the first data byte of the TLV, or to NULL
206 * if the TLV hasn't been found.
207 */
208 static void *lbs_tlv_find(uint16_t tlv_type, const uint8_t *tlv, uint16_t size)
209 {
210 struct mrvl_ie_header *tlv_h;
211 uint16_t length;
212 ssize_t pos = 0;
213
214 while (pos < size) {
215 tlv_h = (struct mrvl_ie_header *) tlv;
216 if (!tlv_h->len)
217 return NULL;
218 if (tlv_h->type == cpu_to_le16(tlv_type))
219 return tlv_h;
220 length = le16_to_cpu(tlv_h->len) + sizeof(*tlv_h);
221 pos += length;
222 tlv += length;
223 }
224 return NULL;
225 }
226
227
228 static ssize_t lbs_threshold_read(uint16_t tlv_type, uint16_t event_mask,
229 struct file *file, char __user *userbuf,
230 size_t count, loff_t *ppos)
231 {
232 struct cmd_ds_802_11_subscribe_event *subscribed;
233 struct mrvl_ie_thresholds *got;
234 struct lbs_private *priv = file->private_data;
235 ssize_t ret = 0;
236 size_t pos = 0;
237 char *buf;
238 u8 value;
239 u8 freq;
240 int events = 0;
241
242 buf = (char *)get_zeroed_page(GFP_KERNEL);
243 if (!buf)
244 return -ENOMEM;
245
246 subscribed = kzalloc(sizeof(*subscribed), GFP_KERNEL);
247 if (!subscribed) {
248 ret = -ENOMEM;
249 goto out_page;
250 }
251
252 subscribed->hdr.size = cpu_to_le16(sizeof(*subscribed));
253 subscribed->action = cpu_to_le16(CMD_ACT_GET);
254
255 ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, subscribed);
256 if (ret)
257 goto out_cmd;
258
259 got = lbs_tlv_find(tlv_type, subscribed->tlv, sizeof(subscribed->tlv));
260 if (got) {
261 value = got->value;
262 freq = got->freq;
263 events = le16_to_cpu(subscribed->events);
264
265 pos += snprintf(buf, len, "%d %d %d\n", value, freq,
266 !!(events & event_mask));
267 }
268
269 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
270
271 out_cmd:
272 kfree(subscribed);
273
274 out_page:
275 free_page((unsigned long)buf);
276 return ret;
277 }
278
279
280 static ssize_t lbs_threshold_write(uint16_t tlv_type, uint16_t event_mask,
281 struct file *file,
282 const char __user *userbuf, size_t count,
283 loff_t *ppos)
284 {
285 struct cmd_ds_802_11_subscribe_event *events;
286 struct mrvl_ie_thresholds *tlv;
287 struct lbs_private *priv = file->private_data;
288 ssize_t buf_size;
289 int value, freq, new_mask;
290 uint16_t curr_mask;
291 char *buf;
292 int ret;
293
294 buf = (char *)get_zeroed_page(GFP_KERNEL);
295 if (!buf)
296 return -ENOMEM;
297
298 buf_size = min(count, len - 1);
299 if (copy_from_user(buf, userbuf, buf_size)) {
300 ret = -EFAULT;
301 goto out_page;
302 }
303 ret = sscanf(buf, "%d %d %d", &value, &freq, &new_mask);
304 if (ret != 3) {
305 ret = -EINVAL;
306 goto out_page;
307 }
308 events = kzalloc(sizeof(*events), GFP_KERNEL);
309 if (!events) {
310 ret = -ENOMEM;
311 goto out_page;
312 }
313
314 events->hdr.size = cpu_to_le16(sizeof(*events));
315 events->action = cpu_to_le16(CMD_ACT_GET);
316
317 ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
318 if (ret)
319 goto out_events;
320
321 curr_mask = le16_to_cpu(events->events);
322
323 if (new_mask)
324 new_mask = curr_mask | event_mask;
325 else
326 new_mask = curr_mask & ~event_mask;
327
328 /* Now everything is set and we can send stuff down to the firmware */
329
330 tlv = (void *)events->tlv;
331
332 events->action = cpu_to_le16(CMD_ACT_SET);
333 events->events = cpu_to_le16(new_mask);
334 tlv->header.type = cpu_to_le16(tlv_type);
335 tlv->header.len = cpu_to_le16(sizeof(*tlv) - sizeof(tlv->header));
336 tlv->value = value;
337 if (tlv_type != TLV_TYPE_BCNMISS)
338 tlv->freq = freq;
339
340 /* The command header, the action, the event mask, and one TLV */
341 events->hdr.size = cpu_to_le16(sizeof(events->hdr) + 4 + sizeof(*tlv));
342
343 ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
344
345 if (!ret)
346 ret = count;
347 out_events:
348 kfree(events);
349 out_page:
350 free_page((unsigned long)buf);
351 return ret;
352 }
353
354
355 static ssize_t lbs_lowrssi_read(struct file *file, char __user *userbuf,
356 size_t count, loff_t *ppos)
357 {
358 return lbs_threshold_read(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
359 file, userbuf, count, ppos);
360 }
361
362
363 static ssize_t lbs_lowrssi_write(struct file *file, const char __user *userbuf,
364 size_t count, loff_t *ppos)
365 {
366 return lbs_threshold_write(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
367 file, userbuf, count, ppos);
368 }
369
370
371 static ssize_t lbs_lowsnr_read(struct file *file, char __user *userbuf,
372 size_t count, loff_t *ppos)
373 {
374 return lbs_threshold_read(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
375 file, userbuf, count, ppos);
376 }
377
378
379 static ssize_t lbs_lowsnr_write(struct file *file, const char __user *userbuf,
380 size_t count, loff_t *ppos)
381 {
382 return lbs_threshold_write(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
383 file, userbuf, count, ppos);
384 }
385
386
387 static ssize_t lbs_failcount_read(struct file *file, char __user *userbuf,
388 size_t count, loff_t *ppos)
389 {
390 return lbs_threshold_read(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
391 file, userbuf, count, ppos);
392 }
393
394
395 static ssize_t lbs_failcount_write(struct file *file, const char __user *userbuf,
396 size_t count, loff_t *ppos)
397 {
398 return lbs_threshold_write(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
399 file, userbuf, count, ppos);
400 }
401
402
403 static ssize_t lbs_highrssi_read(struct file *file, char __user *userbuf,
404 size_t count, loff_t *ppos)
405 {
406 return lbs_threshold_read(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
407 file, userbuf, count, ppos);
408 }
409
410
411 static ssize_t lbs_highrssi_write(struct file *file, const char __user *userbuf,
412 size_t count, loff_t *ppos)
413 {
414 return lbs_threshold_write(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
415 file, userbuf, count, ppos);
416 }
417
418
419 static ssize_t lbs_highsnr_read(struct file *file, char __user *userbuf,
420 size_t count, loff_t *ppos)
421 {
422 return lbs_threshold_read(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
423 file, userbuf, count, ppos);
424 }
425
426
427 static ssize_t lbs_highsnr_write(struct file *file, const char __user *userbuf,
428 size_t count, loff_t *ppos)
429 {
430 return lbs_threshold_write(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
431 file, userbuf, count, ppos);
432 }
433
434 static ssize_t lbs_bcnmiss_read(struct file *file, char __user *userbuf,
435 size_t count, loff_t *ppos)
436 {
437 return lbs_threshold_read(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
438 file, userbuf, count, ppos);
439 }
440
441
442 static ssize_t lbs_bcnmiss_write(struct file *file, const char __user *userbuf,
443 size_t count, loff_t *ppos)
444 {
445 return lbs_threshold_write(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
446 file, userbuf, count, ppos);
447 }
448
449
450 static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf,
451 size_t count, loff_t *ppos)
452 {
453 struct lbs_private *priv = file->private_data;
454 ssize_t pos = 0;
455 int ret;
456 unsigned long addr = get_zeroed_page(GFP_KERNEL);
457 char *buf = (char *)addr;
458 u32 val = 0;
459
460 if (!buf)
461 return -ENOMEM;
462
463 ret = lbs_get_reg(priv, CMD_MAC_REG_ACCESS, priv->mac_offset, &val);
464 mdelay(10);
465 if (!ret) {
466 pos = snprintf(buf, len, "MAC[0x%x] = 0x%08x\n",
467 priv->mac_offset, val);
468 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
469 }
470 free_page(addr);
471 return ret;
472 }
473
474 static ssize_t lbs_rdmac_write(struct file *file,
475 const char __user *userbuf,
476 size_t count, loff_t *ppos)
477 {
478 struct lbs_private *priv = file->private_data;
479 ssize_t res, buf_size;
480 unsigned long addr = get_zeroed_page(GFP_KERNEL);
481 char *buf = (char *)addr;
482 if (!buf)
483 return -ENOMEM;
484
485 buf_size = min(count, len - 1);
486 if (copy_from_user(buf, userbuf, buf_size)) {
487 res = -EFAULT;
488 goto out_unlock;
489 }
490 priv->mac_offset = simple_strtoul((char *)buf, NULL, 16);
491 res = count;
492 out_unlock:
493 free_page(addr);
494 return res;
495 }
496
497 static ssize_t lbs_wrmac_write(struct file *file,
498 const char __user *userbuf,
499 size_t count, loff_t *ppos)
500 {
501
502 struct lbs_private *priv = file->private_data;
503 ssize_t res, buf_size;
504 u32 offset, value;
505 unsigned long addr = get_zeroed_page(GFP_KERNEL);
506 char *buf = (char *)addr;
507 if (!buf)
508 return -ENOMEM;
509
510 buf_size = min(count, len - 1);
511 if (copy_from_user(buf, userbuf, buf_size)) {
512 res = -EFAULT;
513 goto out_unlock;
514 }
515 res = sscanf(buf, "%x %x", &offset, &value);
516 if (res != 2) {
517 res = -EFAULT;
518 goto out_unlock;
519 }
520
521 res = lbs_set_reg(priv, CMD_MAC_REG_ACCESS, offset, value);
522 mdelay(10);
523
524 if (!res)
525 res = count;
526 out_unlock:
527 free_page(addr);
528 return res;
529 }
530
531 static ssize_t lbs_rdbbp_read(struct file *file, char __user *userbuf,
532 size_t count, loff_t *ppos)
533 {
534 struct lbs_private *priv = file->private_data;
535 ssize_t pos = 0;
536 int ret;
537 unsigned long addr = get_zeroed_page(GFP_KERNEL);
538 char *buf = (char *)addr;
539 u32 val;
540
541 if (!buf)
542 return -ENOMEM;
543
544 ret = lbs_get_reg(priv, CMD_BBP_REG_ACCESS, priv->bbp_offset, &val);
545 mdelay(10);
546 if (!ret) {
547 pos = snprintf(buf, len, "BBP[0x%x] = 0x%08x\n",
548 priv->bbp_offset, val);
549 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
550 }
551 free_page(addr);
552
553 return ret;
554 }
555
556 static ssize_t lbs_rdbbp_write(struct file *file,
557 const char __user *userbuf,
558 size_t count, loff_t *ppos)
559 {
560 struct lbs_private *priv = file->private_data;
561 ssize_t res, buf_size;
562 unsigned long addr = get_zeroed_page(GFP_KERNEL);
563 char *buf = (char *)addr;
564 if (!buf)
565 return -ENOMEM;
566
567 buf_size = min(count, len - 1);
568 if (copy_from_user(buf, userbuf, buf_size)) {
569 res = -EFAULT;
570 goto out_unlock;
571 }
572 priv->bbp_offset = simple_strtoul((char *)buf, NULL, 16);
573 res = count;
574 out_unlock:
575 free_page(addr);
576 return res;
577 }
578
579 static ssize_t lbs_wrbbp_write(struct file *file,
580 const char __user *userbuf,
581 size_t count, loff_t *ppos)
582 {
583
584 struct lbs_private *priv = file->private_data;
585 ssize_t res, buf_size;
586 u32 offset, value;
587 unsigned long addr = get_zeroed_page(GFP_KERNEL);
588 char *buf = (char *)addr;
589 if (!buf)
590 return -ENOMEM;
591
592 buf_size = min(count, len - 1);
593 if (copy_from_user(buf, userbuf, buf_size)) {
594 res = -EFAULT;
595 goto out_unlock;
596 }
597 res = sscanf(buf, "%x %x", &offset, &value);
598 if (res != 2) {
599 res = -EFAULT;
600 goto out_unlock;
601 }
602
603 res = lbs_set_reg(priv, CMD_BBP_REG_ACCESS, offset, value);
604 mdelay(10);
605
606 if (!res)
607 res = count;
608 out_unlock:
609 free_page(addr);
610 return res;
611 }
612
613 static ssize_t lbs_rdrf_read(struct file *file, char __user *userbuf,
614 size_t count, loff_t *ppos)
615 {
616 struct lbs_private *priv = file->private_data;
617 ssize_t pos = 0;
618 int ret;
619 unsigned long addr = get_zeroed_page(GFP_KERNEL);
620 char *buf = (char *)addr;
621 u32 val;
622
623 if (!buf)
624 return -ENOMEM;
625
626 ret = lbs_get_reg(priv, CMD_RF_REG_ACCESS, priv->rf_offset, &val);
627 mdelay(10);
628 if (!ret) {
629 pos = snprintf(buf, len, "RF[0x%x] = 0x%08x\n",
630 priv->rf_offset, val);
631 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
632 }
633 free_page(addr);
634
635 return ret;
636 }
637
638 static ssize_t lbs_rdrf_write(struct file *file,
639 const char __user *userbuf,
640 size_t count, loff_t *ppos)
641 {
642 struct lbs_private *priv = file->private_data;
643 ssize_t res, buf_size;
644 unsigned long addr = get_zeroed_page(GFP_KERNEL);
645 char *buf = (char *)addr;
646 if (!buf)
647 return -ENOMEM;
648
649 buf_size = min(count, len - 1);
650 if (copy_from_user(buf, userbuf, buf_size)) {
651 res = -EFAULT;
652 goto out_unlock;
653 }
654 priv->rf_offset = simple_strtoul(buf, NULL, 16);
655 res = count;
656 out_unlock:
657 free_page(addr);
658 return res;
659 }
660
661 static ssize_t lbs_wrrf_write(struct file *file,
662 const char __user *userbuf,
663 size_t count, loff_t *ppos)
664 {
665
666 struct lbs_private *priv = file->private_data;
667 ssize_t res, buf_size;
668 u32 offset, value;
669 unsigned long addr = get_zeroed_page(GFP_KERNEL);
670 char *buf = (char *)addr;
671 if (!buf)
672 return -ENOMEM;
673
674 buf_size = min(count, len - 1);
675 if (copy_from_user(buf, userbuf, buf_size)) {
676 res = -EFAULT;
677 goto out_unlock;
678 }
679 res = sscanf(buf, "%x %x", &offset, &value);
680 if (res != 2) {
681 res = -EFAULT;
682 goto out_unlock;
683 }
684
685 res = lbs_set_reg(priv, CMD_RF_REG_ACCESS, offset, value);
686 mdelay(10);
687
688 if (!res)
689 res = count;
690 out_unlock:
691 free_page(addr);
692 return res;
693 }
694
695 #define FOPS(fread, fwrite) { \
696 .owner = THIS_MODULE, \
697 .open = open_file_generic, \
698 .read = (fread), \
699 .write = (fwrite), \
700 .llseek = generic_file_llseek, \
701 }
702
703 struct lbs_debugfs_files {
704 const char *name;
705 int perm;
706 struct file_operations fops;
707 };
708
709 static const struct lbs_debugfs_files debugfs_files[] = {
710 { "info", 0444, FOPS(lbs_dev_info, write_file_dummy), },
711 { "sleepparams", 0644, FOPS(lbs_sleepparams_read,
712 lbs_sleepparams_write), },
713 { "hostsleep", 0644, FOPS(lbs_host_sleep_read,
714 lbs_host_sleep_write), },
715 };
716
717 static const struct lbs_debugfs_files debugfs_events_files[] = {
718 {"low_rssi", 0644, FOPS(lbs_lowrssi_read,
719 lbs_lowrssi_write), },
720 {"low_snr", 0644, FOPS(lbs_lowsnr_read,
721 lbs_lowsnr_write), },
722 {"failure_count", 0644, FOPS(lbs_failcount_read,
723 lbs_failcount_write), },
724 {"beacon_missed", 0644, FOPS(lbs_bcnmiss_read,
725 lbs_bcnmiss_write), },
726 {"high_rssi", 0644, FOPS(lbs_highrssi_read,
727 lbs_highrssi_write), },
728 {"high_snr", 0644, FOPS(lbs_highsnr_read,
729 lbs_highsnr_write), },
730 };
731
732 static const struct lbs_debugfs_files debugfs_regs_files[] = {
733 {"rdmac", 0644, FOPS(lbs_rdmac_read, lbs_rdmac_write), },
734 {"wrmac", 0600, FOPS(NULL, lbs_wrmac_write), },
735 {"rdbbp", 0644, FOPS(lbs_rdbbp_read, lbs_rdbbp_write), },
736 {"wrbbp", 0600, FOPS(NULL, lbs_wrbbp_write), },
737 {"rdrf", 0644, FOPS(lbs_rdrf_read, lbs_rdrf_write), },
738 {"wrrf", 0600, FOPS(NULL, lbs_wrrf_write), },
739 };
740
741 void lbs_debugfs_init(void)
742 {
743 if (!lbs_dir)
744 lbs_dir = debugfs_create_dir("lbs_wireless", NULL);
745 }
746
747 void lbs_debugfs_remove(void)
748 {
749 if (lbs_dir)
750 debugfs_remove(lbs_dir);
751 }
752
753 void lbs_debugfs_init_one(struct lbs_private *priv, struct net_device *dev)
754 {
755 int i;
756 const struct lbs_debugfs_files *files;
757 if (!lbs_dir)
758 goto exit;
759
760 priv->debugfs_dir = debugfs_create_dir(dev->name, lbs_dir);
761 if (!priv->debugfs_dir)
762 goto exit;
763
764 for (i=0; i<ARRAY_SIZE(debugfs_files); i++) {
765 files = &debugfs_files[i];
766 priv->debugfs_files[i] = debugfs_create_file(files->name,
767 files->perm,
768 priv->debugfs_dir,
769 priv,
770 &files->fops);
771 }
772
773 priv->events_dir = debugfs_create_dir("subscribed_events", priv->debugfs_dir);
774 if (!priv->events_dir)
775 goto exit;
776
777 for (i=0; i<ARRAY_SIZE(debugfs_events_files); i++) {
778 files = &debugfs_events_files[i];
779 priv->debugfs_events_files[i] = debugfs_create_file(files->name,
780 files->perm,
781 priv->events_dir,
782 priv,
783 &files->fops);
784 }
785
786 priv->regs_dir = debugfs_create_dir("registers", priv->debugfs_dir);
787 if (!priv->regs_dir)
788 goto exit;
789
790 for (i=0; i<ARRAY_SIZE(debugfs_regs_files); i++) {
791 files = &debugfs_regs_files[i];
792 priv->debugfs_regs_files[i] = debugfs_create_file(files->name,
793 files->perm,
794 priv->regs_dir,
795 priv,
796 &files->fops);
797 }
798
799 #ifdef PROC_DEBUG
800 lbs_debug_init(priv);
801 #endif
802 exit:
803 return;
804 }
805
806 void lbs_debugfs_remove_one(struct lbs_private *priv)
807 {
808 int i;
809
810 for(i=0; i<ARRAY_SIZE(debugfs_regs_files); i++)
811 debugfs_remove(priv->debugfs_regs_files[i]);
812
813 debugfs_remove(priv->regs_dir);
814
815 for(i=0; i<ARRAY_SIZE(debugfs_events_files); i++)
816 debugfs_remove(priv->debugfs_events_files[i]);
817
818 debugfs_remove(priv->events_dir);
819 #ifdef PROC_DEBUG
820 debugfs_remove(priv->debugfs_debug);
821 #endif
822 for(i=0; i<ARRAY_SIZE(debugfs_files); i++)
823 debugfs_remove(priv->debugfs_files[i]);
824 debugfs_remove(priv->debugfs_dir);
825 }
826
827
828
829 /* debug entry */
830
831 #ifdef PROC_DEBUG
832
833 #define item_size(n) (FIELD_SIZEOF(struct lbs_private, n))
834 #define item_addr(n) (offsetof(struct lbs_private, n))
835
836
837 struct debug_data {
838 char name[32];
839 u32 size;
840 size_t addr;
841 };
842
843 /* To debug any member of struct lbs_private, simply add one line here.
844 */
845 static struct debug_data items[] = {
846 {"psmode", item_size(psmode), item_addr(psmode)},
847 {"psstate", item_size(psstate), item_addr(psstate)},
848 };
849
850 static int num_of_items = ARRAY_SIZE(items);
851
852 /**
853 * lbs_debugfs_read - proc read function
854 *
855 * @file: file to read
856 * @userbuf: pointer to buffer
857 * @count: number of bytes to read
858 * @ppos: read data starting position
859 *
860 * returns: amount of data read or negative error code
861 */
862 static ssize_t lbs_debugfs_read(struct file *file, char __user *userbuf,
863 size_t count, loff_t *ppos)
864 {
865 int val = 0;
866 size_t pos = 0;
867 ssize_t res;
868 char *p;
869 int i;
870 struct debug_data *d;
871 unsigned long addr = get_zeroed_page(GFP_KERNEL);
872 char *buf = (char *)addr;
873 if (!buf)
874 return -ENOMEM;
875
876 p = buf;
877
878 d = file->private_data;
879
880 for (i = 0; i < num_of_items; i++) {
881 if (d[i].size == 1)
882 val = *((u8 *) d[i].addr);
883 else if (d[i].size == 2)
884 val = *((u16 *) d[i].addr);
885 else if (d[i].size == 4)
886 val = *((u32 *) d[i].addr);
887 else if (d[i].size == 8)
888 val = *((u64 *) d[i].addr);
889
890 pos += sprintf(p + pos, "%s=%d\n", d[i].name, val);
891 }
892
893 res = simple_read_from_buffer(userbuf, count, ppos, p, pos);
894
895 free_page(addr);
896 return res;
897 }
898
899 /**
900 * lbs_debugfs_write - proc write function
901 *
902 * @f: file pointer
903 * @buf: pointer to data buffer
904 * @cnt: data number to write
905 * @ppos: file position
906 *
907 * returns: amount of data written
908 */
909 static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf,
910 size_t cnt, loff_t *ppos)
911 {
912 int r, i;
913 char *pdata;
914 char *p;
915 char *p0;
916 char *p1;
917 char *p2;
918 struct debug_data *d = f->private_data;
919
920 pdata = kmalloc(cnt, GFP_KERNEL);
921 if (pdata == NULL)
922 return 0;
923
924 if (copy_from_user(pdata, buf, cnt)) {
925 lbs_deb_debugfs("Copy from user failed\n");
926 kfree(pdata);
927 return 0;
928 }
929
930 p0 = pdata;
931 for (i = 0; i < num_of_items; i++) {
932 do {
933 p = strstr(p0, d[i].name);
934 if (p == NULL)
935 break;
936 p1 = strchr(p, '\n');
937 if (p1 == NULL)
938 break;
939 p0 = p1++;
940 p2 = strchr(p, '=');
941 if (!p2)
942 break;
943 p2++;
944 r = simple_strtoul(p2, NULL, 0);
945 if (d[i].size == 1)
946 *((u8 *) d[i].addr) = (u8) r;
947 else if (d[i].size == 2)
948 *((u16 *) d[i].addr) = (u16) r;
949 else if (d[i].size == 4)
950 *((u32 *) d[i].addr) = (u32) r;
951 else if (d[i].size == 8)
952 *((u64 *) d[i].addr) = (u64) r;
953 break;
954 } while (1);
955 }
956 kfree(pdata);
957
958 return (ssize_t)cnt;
959 }
960
961 static const struct file_operations lbs_debug_fops = {
962 .owner = THIS_MODULE,
963 .open = open_file_generic,
964 .write = lbs_debugfs_write,
965 .read = lbs_debugfs_read,
966 .llseek = default_llseek,
967 };
968
969 /**
970 * lbs_debug_init - create debug proc file
971 *
972 * @priv: pointer to &struct lbs_private
973 *
974 * returns: N/A
975 */
976 static void lbs_debug_init(struct lbs_private *priv)
977 {
978 int i;
979
980 if (!priv->debugfs_dir)
981 return;
982
983 for (i = 0; i < num_of_items; i++)
984 items[i].addr += (size_t) priv;
985
986 priv->debugfs_debug = debugfs_create_file("debug", 0644,
987 priv->debugfs_dir, &items[0],
988 &lbs_debug_fops);
989 }
990 #endif