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Staging: netwave: delete the driver
[linux/fpc-iii.git] / drivers / net / wireless / libertas / debugfs.c
bloba48ccaffb288a785c78c944953943cf5296eed9b
1 #include <linux/module.h>
2 #include <linux/dcache.h>
3 #include <linux/debugfs.h>
4 #include <linux/delay.h>
5 #include <linux/mm.h>
6 #include <linux/string.h>
7 #include <linux/slab.h>
8 #include <net/iw_handler.h>
9 #include <net/lib80211.h>
10
11 #include "dev.h"
12 #include "decl.h"
13 #include "host.h"
14 #include "debugfs.h"
15 #include "cmd.h"
16
17 static struct dentry *lbs_dir;
18 static char *szStates[] = {
19 "Connected",
20 "Disconnected"
21 };
22
23 #ifdef PROC_DEBUG
24 static void lbs_debug_init(struct lbs_private *priv);
25 #endif
26
27 static int open_file_generic(struct inode *inode, struct file *file)
28 {
29 file->private_data = inode->i_private;
30 return 0;
31 }
32
33 static ssize_t write_file_dummy(struct file *file, const char __user *buf,
34 size_t count, loff_t *ppos)
35 {
36 return -EINVAL;
37 }
38
39 static const size_t len = PAGE_SIZE;
40
41 static ssize_t lbs_dev_info(struct file *file, char __user *userbuf,
42 size_t count, loff_t *ppos)
43 {
44 struct lbs_private *priv = file->private_data;
45 size_t pos = 0;
46 unsigned long addr = get_zeroed_page(GFP_KERNEL);
47 char *buf = (char *)addr;
48 ssize_t res;
49 if (!buf)
50 return -ENOMEM;
51
52 pos += snprintf(buf+pos, len-pos, "state = %s\n",
53 szStates[priv->connect_status]);
54 pos += snprintf(buf+pos, len-pos, "region_code = %02x\n",
55 (u32) priv->regioncode);
56
57 res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
58
59 free_page(addr);
60 return res;
61 }
62
63
64 static ssize_t lbs_getscantable(struct file *file, char __user *userbuf,
65 size_t count, loff_t *ppos)
66 {
67 struct lbs_private *priv = file->private_data;
68 size_t pos = 0;
69 int numscansdone = 0, res;
70 unsigned long addr = get_zeroed_page(GFP_KERNEL);
71 char *buf = (char *)addr;
72 DECLARE_SSID_BUF(ssid);
73 struct bss_descriptor * iter_bss;
74 if (!buf)
75 return -ENOMEM;
76
77 pos += snprintf(buf+pos, len-pos,
78 "# | ch | rssi | bssid | cap | Qual | SSID \n");
79
80 mutex_lock(&priv->lock);
81 list_for_each_entry (iter_bss, &priv->network_list, list) {
82 u16 ibss = (iter_bss->capability & WLAN_CAPABILITY_IBSS);
83 u16 privacy = (iter_bss->capability & WLAN_CAPABILITY_PRIVACY);
84 u16 spectrum_mgmt = (iter_bss->capability & WLAN_CAPABILITY_SPECTRUM_MGMT);
85
86 pos += snprintf(buf+pos, len-pos, "%02u| %03d | %04d | %pM |",
87 numscansdone, iter_bss->channel, iter_bss->rssi,
88 iter_bss->bssid);
89 pos += snprintf(buf+pos, len-pos, " %04x-", iter_bss->capability);
90 pos += snprintf(buf+pos, len-pos, "%c%c%c |",
91 ibss ? 'A' : 'I', privacy ? 'P' : ' ',
92 spectrum_mgmt ? 'S' : ' ');
93 pos += snprintf(buf+pos, len-pos, " %04d |", SCAN_RSSI(iter_bss->rssi));
94 pos += snprintf(buf+pos, len-pos, " %s\n",
95 print_ssid(ssid, iter_bss->ssid,
96 iter_bss->ssid_len));
97
98 numscansdone++;
99 }
100 mutex_unlock(&priv->lock);
101
102 res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
103
104 free_page(addr);
105 return res;
106 }
107
108 static ssize_t lbs_sleepparams_write(struct file *file,
109 const char __user *user_buf, size_t count,
110 loff_t *ppos)
111 {
112 struct lbs_private *priv = file->private_data;
113 ssize_t buf_size, ret;
114 struct sleep_params sp;
115 int p1, p2, p3, p4, p5, p6;
116 unsigned long addr = get_zeroed_page(GFP_KERNEL);
117 char *buf = (char *)addr;
118 if (!buf)
119 return -ENOMEM;
120
121 buf_size = min(count, len - 1);
122 if (copy_from_user(buf, user_buf, buf_size)) {
123 ret = -EFAULT;
124 goto out_unlock;
125 }
126 ret = sscanf(buf, "%d %d %d %d %d %d", &p1, &p2, &p3, &p4, &p5, &p6);
127 if (ret != 6) {
128 ret = -EINVAL;
129 goto out_unlock;
130 }
131 sp.sp_error = p1;
132 sp.sp_offset = p2;
133 sp.sp_stabletime = p3;
134 sp.sp_calcontrol = p4;
135 sp.sp_extsleepclk = p5;
136 sp.sp_reserved = p6;
137
138 ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_SET, &sp);
139 if (!ret)
140 ret = count;
141 else if (ret > 0)
142 ret = -EINVAL;
143
144 out_unlock:
145 free_page(addr);
146 return ret;
147 }
148
149 static ssize_t lbs_sleepparams_read(struct file *file, char __user *userbuf,
150 size_t count, loff_t *ppos)
151 {
152 struct lbs_private *priv = file->private_data;
153 ssize_t ret;
154 size_t pos = 0;
155 struct sleep_params sp;
156 unsigned long addr = get_zeroed_page(GFP_KERNEL);
157 char *buf = (char *)addr;
158 if (!buf)
159 return -ENOMEM;
160
161 ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_GET, &sp);
162 if (ret)
163 goto out_unlock;
164
165 pos += snprintf(buf, len, "%d %d %d %d %d %d\n", sp.sp_error,
166 sp.sp_offset, sp.sp_stabletime,
167 sp.sp_calcontrol, sp.sp_extsleepclk,
168 sp.sp_reserved);
169
170 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
171
172 out_unlock:
173 free_page(addr);
174 return ret;
175 }
176
177 /*
178 * When calling CMD_802_11_SUBSCRIBE_EVENT with CMD_ACT_GET, me might
179 * get a bunch of vendor-specific TLVs (a.k.a. IEs) back from the
180 * firmware. Here's an example:
181 * 04 01 02 00 00 00 05 01 02 00 00 00 06 01 02 00
182 * 00 00 07 01 02 00 3c 00 00 00 00 00 00 00 03 03
183 * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
184 *
185 * The 04 01 is the TLV type (here TLV_TYPE_RSSI_LOW), 02 00 is the length,
186 * 00 00 are the data bytes of this TLV. For this TLV, their meaning is
187 * defined in mrvlietypes_thresholds
188 *
189 * This function searches in this TLV data chunk for a given TLV type
190 * and returns a pointer to the first data byte of the TLV, or to NULL
191 * if the TLV hasn't been found.
192 */
193 static void *lbs_tlv_find(uint16_t tlv_type, const uint8_t *tlv, uint16_t size)
194 {
195 struct mrvl_ie_header *tlv_h;
196 uint16_t length;
197 ssize_t pos = 0;
198
199 while (pos < size) {
200 tlv_h = (struct mrvl_ie_header *) tlv;
201 if (!tlv_h->len)
202 return NULL;
203 if (tlv_h->type == cpu_to_le16(tlv_type))
204 return tlv_h;
205 length = le16_to_cpu(tlv_h->len) + sizeof(*tlv_h);
206 pos += length;
207 tlv += length;
208 }
209 return NULL;
210 }
211
212
213 static ssize_t lbs_threshold_read(uint16_t tlv_type, uint16_t event_mask,
214 struct file *file, char __user *userbuf,
215 size_t count, loff_t *ppos)
216 {
217 struct cmd_ds_802_11_subscribe_event *subscribed;
218 struct mrvl_ie_thresholds *got;
219 struct lbs_private *priv = file->private_data;
220 ssize_t ret = 0;
221 size_t pos = 0;
222 char *buf;
223 u8 value;
224 u8 freq;
225 int events = 0;
226
227 buf = (char *)get_zeroed_page(GFP_KERNEL);
228 if (!buf)
229 return -ENOMEM;
230
231 subscribed = kzalloc(sizeof(*subscribed), GFP_KERNEL);
232 if (!subscribed) {
233 ret = -ENOMEM;
234 goto out_page;
235 }
236
237 subscribed->hdr.size = cpu_to_le16(sizeof(*subscribed));
238 subscribed->action = cpu_to_le16(CMD_ACT_GET);
239
240 ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, subscribed);
241 if (ret)
242 goto out_cmd;
243
244 got = lbs_tlv_find(tlv_type, subscribed->tlv, sizeof(subscribed->tlv));
245 if (got) {
246 value = got->value;
247 freq = got->freq;
248 events = le16_to_cpu(subscribed->events);
249
250 pos += snprintf(buf, len, "%d %d %d\n", value, freq,
251 !!(events & event_mask));
252 }
253
254 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
255
256 out_cmd:
257 kfree(subscribed);
258
259 out_page:
260 free_page((unsigned long)buf);
261 return ret;
262 }
263
264
265 static ssize_t lbs_threshold_write(uint16_t tlv_type, uint16_t event_mask,
266 struct file *file,
267 const char __user *userbuf, size_t count,
268 loff_t *ppos)
269 {
270 struct cmd_ds_802_11_subscribe_event *events;
271 struct mrvl_ie_thresholds *tlv;
272 struct lbs_private *priv = file->private_data;
273 ssize_t buf_size;
274 int value, freq, new_mask;
275 uint16_t curr_mask;
276 char *buf;
277 int ret;
278
279 buf = (char *)get_zeroed_page(GFP_KERNEL);
280 if (!buf)
281 return -ENOMEM;
282
283 buf_size = min(count, len - 1);
284 if (copy_from_user(buf, userbuf, buf_size)) {
285 ret = -EFAULT;
286 goto out_page;
287 }
288 ret = sscanf(buf, "%d %d %d", &value, &freq, &new_mask);
289 if (ret != 3) {
290 ret = -EINVAL;
291 goto out_page;
292 }
293 events = kzalloc(sizeof(*events), GFP_KERNEL);
294 if (!events) {
295 ret = -ENOMEM;
296 goto out_page;
297 }
298
299 events->hdr.size = cpu_to_le16(sizeof(*events));
300 events->action = cpu_to_le16(CMD_ACT_GET);
301
302 ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
303 if (ret)
304 goto out_events;
305
306 curr_mask = le16_to_cpu(events->events);
307
308 if (new_mask)
309 new_mask = curr_mask | event_mask;
310 else
311 new_mask = curr_mask & ~event_mask;
312
313 /* Now everything is set and we can send stuff down to the firmware */
314
315 tlv = (void *)events->tlv;
316
317 events->action = cpu_to_le16(CMD_ACT_SET);
318 events->events = cpu_to_le16(new_mask);
319 tlv->header.type = cpu_to_le16(tlv_type);
320 tlv->header.len = cpu_to_le16(sizeof(*tlv) - sizeof(tlv->header));
321 tlv->value = value;
322 if (tlv_type != TLV_TYPE_BCNMISS)
323 tlv->freq = freq;
324
325 /* The command header, the action, the event mask, and one TLV */
326 events->hdr.size = cpu_to_le16(sizeof(events->hdr) + 4 + sizeof(*tlv));
327
328 ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
329
330 if (!ret)
331 ret = count;
332 out_events:
333 kfree(events);
334 out_page:
335 free_page((unsigned long)buf);
336 return ret;
337 }
338
339
340 static ssize_t lbs_lowrssi_read(struct file *file, char __user *userbuf,
341 size_t count, loff_t *ppos)
342 {
343 return lbs_threshold_read(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
344 file, userbuf, count, ppos);
345 }
346
347
348 static ssize_t lbs_lowrssi_write(struct file *file, const char __user *userbuf,
349 size_t count, loff_t *ppos)
350 {
351 return lbs_threshold_write(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
352 file, userbuf, count, ppos);
353 }
354
355
356 static ssize_t lbs_lowsnr_read(struct file *file, char __user *userbuf,
357 size_t count, loff_t *ppos)
358 {
359 return lbs_threshold_read(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
360 file, userbuf, count, ppos);
361 }
362
363
364 static ssize_t lbs_lowsnr_write(struct file *file, const char __user *userbuf,
365 size_t count, loff_t *ppos)
366 {
367 return lbs_threshold_write(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
368 file, userbuf, count, ppos);
369 }
370
371
372 static ssize_t lbs_failcount_read(struct file *file, char __user *userbuf,
373 size_t count, loff_t *ppos)
374 {
375 return lbs_threshold_read(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
376 file, userbuf, count, ppos);
377 }
378
379
380 static ssize_t lbs_failcount_write(struct file *file, const char __user *userbuf,
381 size_t count, loff_t *ppos)
382 {
383 return lbs_threshold_write(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
384 file, userbuf, count, ppos);
385 }
386
387
388 static ssize_t lbs_highrssi_read(struct file *file, char __user *userbuf,
389 size_t count, loff_t *ppos)
390 {
391 return lbs_threshold_read(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
392 file, userbuf, count, ppos);
393 }
394
395
396 static ssize_t lbs_highrssi_write(struct file *file, const char __user *userbuf,
397 size_t count, loff_t *ppos)
398 {
399 return lbs_threshold_write(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
400 file, userbuf, count, ppos);
401 }
402
403
404 static ssize_t lbs_highsnr_read(struct file *file, char __user *userbuf,
405 size_t count, loff_t *ppos)
406 {
407 return lbs_threshold_read(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
408 file, userbuf, count, ppos);
409 }
410
411
412 static ssize_t lbs_highsnr_write(struct file *file, const char __user *userbuf,
413 size_t count, loff_t *ppos)
414 {
415 return lbs_threshold_write(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
416 file, userbuf, count, ppos);
417 }
418
419 static ssize_t lbs_bcnmiss_read(struct file *file, char __user *userbuf,
420 size_t count, loff_t *ppos)
421 {
422 return lbs_threshold_read(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
423 file, userbuf, count, ppos);
424 }
425
426
427 static ssize_t lbs_bcnmiss_write(struct file *file, const char __user *userbuf,
428 size_t count, loff_t *ppos)
429 {
430 return lbs_threshold_write(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
431 file, userbuf, count, ppos);
432 }
433
434
435
436 static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf,
437 size_t count, loff_t *ppos)
438 {
439 struct lbs_private *priv = file->private_data;
440 struct lbs_offset_value offval;
441 ssize_t pos = 0;
442 int ret;
443 unsigned long addr = get_zeroed_page(GFP_KERNEL);
444 char *buf = (char *)addr;
445 if (!buf)
446 return -ENOMEM;
447
448 offval.offset = priv->mac_offset;
449 offval.value = 0;
450
451 ret = lbs_prepare_and_send_command(priv,
452 CMD_MAC_REG_ACCESS, 0,
453 CMD_OPTION_WAITFORRSP, 0, &offval);
454 mdelay(10);
455 if (!ret) {
456 pos += snprintf(buf+pos, len-pos, "MAC[0x%x] = 0x%08x\n",
457 priv->mac_offset, priv->offsetvalue.value);
458
459 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
460 }
461 free_page(addr);
462 return ret;
463 }
464
465 static ssize_t lbs_rdmac_write(struct file *file,
466 const char __user *userbuf,
467 size_t count, loff_t *ppos)
468 {
469 struct lbs_private *priv = file->private_data;
470 ssize_t res, buf_size;
471 unsigned long addr = get_zeroed_page(GFP_KERNEL);
472 char *buf = (char *)addr;
473 if (!buf)
474 return -ENOMEM;
475
476 buf_size = min(count, len - 1);
477 if (copy_from_user(buf, userbuf, buf_size)) {
478 res = -EFAULT;
479 goto out_unlock;
480 }
481 priv->mac_offset = simple_strtoul((char *)buf, NULL, 16);
482 res = count;
483 out_unlock:
484 free_page(addr);
485 return res;
486 }
487
488 static ssize_t lbs_wrmac_write(struct file *file,
489 const char __user *userbuf,
490 size_t count, loff_t *ppos)
491 {
492
493 struct lbs_private *priv = file->private_data;
494 ssize_t res, buf_size;
495 u32 offset, value;
496 struct lbs_offset_value offval;
497 unsigned long addr = get_zeroed_page(GFP_KERNEL);
498 char *buf = (char *)addr;
499 if (!buf)
500 return -ENOMEM;
501
502 buf_size = min(count, len - 1);
503 if (copy_from_user(buf, userbuf, buf_size)) {
504 res = -EFAULT;
505 goto out_unlock;
506 }
507 res = sscanf(buf, "%x %x", &offset, &value);
508 if (res != 2) {
509 res = -EFAULT;
510 goto out_unlock;
511 }
512
513 offval.offset = offset;
514 offval.value = value;
515 res = lbs_prepare_and_send_command(priv,
516 CMD_MAC_REG_ACCESS, 1,
517 CMD_OPTION_WAITFORRSP, 0, &offval);
518 mdelay(10);
519
520 if (!res)
521 res = count;
522 out_unlock:
523 free_page(addr);
524 return res;
525 }
526
527 static ssize_t lbs_rdbbp_read(struct file *file, char __user *userbuf,
528 size_t count, loff_t *ppos)
529 {
530 struct lbs_private *priv = file->private_data;
531 struct lbs_offset_value offval;
532 ssize_t pos = 0;
533 int ret;
534 unsigned long addr = get_zeroed_page(GFP_KERNEL);
535 char *buf = (char *)addr;
536 if (!buf)
537 return -ENOMEM;
538
539 offval.offset = priv->bbp_offset;
540 offval.value = 0;
541
542 ret = lbs_prepare_and_send_command(priv,
543 CMD_BBP_REG_ACCESS, 0,
544 CMD_OPTION_WAITFORRSP, 0, &offval);
545 mdelay(10);
546 if (!ret) {
547 pos += snprintf(buf+pos, len-pos, "BBP[0x%x] = 0x%08x\n",
548 priv->bbp_offset, priv->offsetvalue.value);
549
550 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
551 }
552 free_page(addr);
553
554 return ret;
555 }
556
557 static ssize_t lbs_rdbbp_write(struct file *file,
558 const char __user *userbuf,
559 size_t count, loff_t *ppos)
560 {
561 struct lbs_private *priv = file->private_data;
562 ssize_t res, buf_size;
563 unsigned long addr = get_zeroed_page(GFP_KERNEL);
564 char *buf = (char *)addr;
565 if (!buf)
566 return -ENOMEM;
567
568 buf_size = min(count, len - 1);
569 if (copy_from_user(buf, userbuf, buf_size)) {
570 res = -EFAULT;
571 goto out_unlock;
572 }
573 priv->bbp_offset = simple_strtoul((char *)buf, NULL, 16);
574 res = count;
575 out_unlock:
576 free_page(addr);
577 return res;
578 }
579
580 static ssize_t lbs_wrbbp_write(struct file *file,
581 const char __user *userbuf,
582 size_t count, loff_t *ppos)
583 {
584
585 struct lbs_private *priv = file->private_data;
586 ssize_t res, buf_size;
587 u32 offset, value;
588 struct lbs_offset_value offval;
589 unsigned long addr = get_zeroed_page(GFP_KERNEL);
590 char *buf = (char *)addr;
591 if (!buf)
592 return -ENOMEM;
593
594 buf_size = min(count, len - 1);
595 if (copy_from_user(buf, userbuf, buf_size)) {
596 res = -EFAULT;
597 goto out_unlock;
598 }
599 res = sscanf(buf, "%x %x", &offset, &value);
600 if (res != 2) {
601 res = -EFAULT;
602 goto out_unlock;
603 }
604
605 offval.offset = offset;
606 offval.value = value;
607 res = lbs_prepare_and_send_command(priv,
608 CMD_BBP_REG_ACCESS, 1,
609 CMD_OPTION_WAITFORRSP, 0, &offval);
610 mdelay(10);
611
612 if (!res)
613 res = count;
614 out_unlock:
615 free_page(addr);
616 return res;
617 }
618
619 static ssize_t lbs_rdrf_read(struct file *file, char __user *userbuf,
620 size_t count, loff_t *ppos)
621 {
622 struct lbs_private *priv = file->private_data;
623 struct lbs_offset_value offval;
624 ssize_t pos = 0;
625 int ret;
626 unsigned long addr = get_zeroed_page(GFP_KERNEL);
627 char *buf = (char *)addr;
628 if (!buf)
629 return -ENOMEM;
630
631 offval.offset = priv->rf_offset;
632 offval.value = 0;
633
634 ret = lbs_prepare_and_send_command(priv,
635 CMD_RF_REG_ACCESS, 0,
636 CMD_OPTION_WAITFORRSP, 0, &offval);
637 mdelay(10);
638 if (!ret) {
639 pos += snprintf(buf+pos, len-pos, "RF[0x%x] = 0x%08x\n",
640 priv->rf_offset, priv->offsetvalue.value);
641
642 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
643 }
644 free_page(addr);
645
646 return ret;
647 }
648
649 static ssize_t lbs_rdrf_write(struct file *file,
650 const char __user *userbuf,
651 size_t count, loff_t *ppos)
652 {
653 struct lbs_private *priv = file->private_data;
654 ssize_t res, buf_size;
655 unsigned long addr = get_zeroed_page(GFP_KERNEL);
656 char *buf = (char *)addr;
657 if (!buf)
658 return -ENOMEM;
659
660 buf_size = min(count, len - 1);
661 if (copy_from_user(buf, userbuf, buf_size)) {
662 res = -EFAULT;
663 goto out_unlock;
664 }
665 priv->rf_offset = simple_strtoul(buf, NULL, 16);
666 res = count;
667 out_unlock:
668 free_page(addr);
669 return res;
670 }
671
672 static ssize_t lbs_wrrf_write(struct file *file,
673 const char __user *userbuf,
674 size_t count, loff_t *ppos)
675 {
676
677 struct lbs_private *priv = file->private_data;
678 ssize_t res, buf_size;
679 u32 offset, value;
680 struct lbs_offset_value offval;
681 unsigned long addr = get_zeroed_page(GFP_KERNEL);
682 char *buf = (char *)addr;
683 if (!buf)
684 return -ENOMEM;
685
686 buf_size = min(count, len - 1);
687 if (copy_from_user(buf, userbuf, buf_size)) {
688 res = -EFAULT;
689 goto out_unlock;
690 }
691 res = sscanf(buf, "%x %x", &offset, &value);
692 if (res != 2) {
693 res = -EFAULT;
694 goto out_unlock;
695 }
696
697 offval.offset = offset;
698 offval.value = value;
699 res = lbs_prepare_and_send_command(priv,
700 CMD_RF_REG_ACCESS, 1,
701 CMD_OPTION_WAITFORRSP, 0, &offval);
702 mdelay(10);
703
704 if (!res)
705 res = count;
706 out_unlock:
707 free_page(addr);
708 return res;
709 }
710
711 #define FOPS(fread, fwrite) { \
712 .owner = THIS_MODULE, \
713 .open = open_file_generic, \
714 .read = (fread), \
715 .write = (fwrite), \
716 }
717
718 struct lbs_debugfs_files {
719 const char *name;
720 int perm;
721 struct file_operations fops;
722 };
723
724 static const struct lbs_debugfs_files debugfs_files[] = {
725 { "info", 0444, FOPS(lbs_dev_info, write_file_dummy), },
726 { "getscantable", 0444, FOPS(lbs_getscantable,
727 write_file_dummy), },
728 { "sleepparams", 0644, FOPS(lbs_sleepparams_read,
729 lbs_sleepparams_write), },
730 };
731
732 static const struct lbs_debugfs_files debugfs_events_files[] = {
733 {"low_rssi", 0644, FOPS(lbs_lowrssi_read,
734 lbs_lowrssi_write), },
735 {"low_snr", 0644, FOPS(lbs_lowsnr_read,
736 lbs_lowsnr_write), },
737 {"failure_count", 0644, FOPS(lbs_failcount_read,
738 lbs_failcount_write), },
739 {"beacon_missed", 0644, FOPS(lbs_bcnmiss_read,
740 lbs_bcnmiss_write), },
741 {"high_rssi", 0644, FOPS(lbs_highrssi_read,
742 lbs_highrssi_write), },
743 {"high_snr", 0644, FOPS(lbs_highsnr_read,
744 lbs_highsnr_write), },
745 };
746
747 static const struct lbs_debugfs_files debugfs_regs_files[] = {
748 {"rdmac", 0644, FOPS(lbs_rdmac_read, lbs_rdmac_write), },
749 {"wrmac", 0600, FOPS(NULL, lbs_wrmac_write), },
750 {"rdbbp", 0644, FOPS(lbs_rdbbp_read, lbs_rdbbp_write), },
751 {"wrbbp", 0600, FOPS(NULL, lbs_wrbbp_write), },
752 {"rdrf", 0644, FOPS(lbs_rdrf_read, lbs_rdrf_write), },
753 {"wrrf", 0600, FOPS(NULL, lbs_wrrf_write), },
754 };
755
756 void lbs_debugfs_init(void)
757 {
758 if (!lbs_dir)
759 lbs_dir = debugfs_create_dir("lbs_wireless", NULL);
760
761 return;
762 }
763
764 void lbs_debugfs_remove(void)
765 {
766 if (lbs_dir)
767 debugfs_remove(lbs_dir);
768 return;
769 }
770
771 void lbs_debugfs_init_one(struct lbs_private *priv, struct net_device *dev)
772 {
773 int i;
774 const struct lbs_debugfs_files *files;
775 if (!lbs_dir)
776 goto exit;
777
778 priv->debugfs_dir = debugfs_create_dir(dev->name, lbs_dir);
779 if (!priv->debugfs_dir)
780 goto exit;
781
782 for (i=0; i<ARRAY_SIZE(debugfs_files); i++) {
783 files = &debugfs_files[i];
784 priv->debugfs_files[i] = debugfs_create_file(files->name,
785 files->perm,
786 priv->debugfs_dir,
787 priv,
788 &files->fops);
789 }
790
791 priv->events_dir = debugfs_create_dir("subscribed_events", priv->debugfs_dir);
792 if (!priv->events_dir)
793 goto exit;
794
795 for (i=0; i<ARRAY_SIZE(debugfs_events_files); i++) {
796 files = &debugfs_events_files[i];
797 priv->debugfs_events_files[i] = debugfs_create_file(files->name,
798 files->perm,
799 priv->events_dir,
800 priv,
801 &files->fops);
802 }
803
804 priv->regs_dir = debugfs_create_dir("registers", priv->debugfs_dir);
805 if (!priv->regs_dir)
806 goto exit;
807
808 for (i=0; i<ARRAY_SIZE(debugfs_regs_files); i++) {
809 files = &debugfs_regs_files[i];
810 priv->debugfs_regs_files[i] = debugfs_create_file(files->name,
811 files->perm,
812 priv->regs_dir,
813 priv,
814 &files->fops);
815 }
816
817 #ifdef PROC_DEBUG
818 lbs_debug_init(priv);
819 #endif
820 exit:
821 return;
822 }
823
824 void lbs_debugfs_remove_one(struct lbs_private *priv)
825 {
826 int i;
827
828 for(i=0; i<ARRAY_SIZE(debugfs_regs_files); i++)
829 debugfs_remove(priv->debugfs_regs_files[i]);
830
831 debugfs_remove(priv->regs_dir);
832
833 for(i=0; i<ARRAY_SIZE(debugfs_events_files); i++)
834 debugfs_remove(priv->debugfs_events_files[i]);
835
836 debugfs_remove(priv->events_dir);
837 #ifdef PROC_DEBUG
838 debugfs_remove(priv->debugfs_debug);
839 #endif
840 for(i=0; i<ARRAY_SIZE(debugfs_files); i++)
841 debugfs_remove(priv->debugfs_files[i]);
842 debugfs_remove(priv->debugfs_dir);
843 }
844
845
846
847 /* debug entry */
848
849 #ifdef PROC_DEBUG
850
851 #define item_size(n) (FIELD_SIZEOF(struct lbs_private, n))
852 #define item_addr(n) (offsetof(struct lbs_private, n))
853
854
855 struct debug_data {
856 char name[32];
857 u32 size;
858 size_t addr;
859 };
860
861 /* To debug any member of struct lbs_private, simply add one line here.
862 */
863 static struct debug_data items[] = {
864 {"psmode", item_size(psmode), item_addr(psmode)},
865 {"psstate", item_size(psstate), item_addr(psstate)},
866 };
867
868 static int num_of_items = ARRAY_SIZE(items);
869
870 /**
871 * @brief proc read function
872 *
873 * @param page pointer to buffer
874 * @param s read data starting position
875 * @param off offset
876 * @param cnt counter
877 * @param eof end of file flag
878 * @param data data to output
879 * @return number of output data
880 */
881 static ssize_t lbs_debugfs_read(struct file *file, char __user *userbuf,
882 size_t count, loff_t *ppos)
883 {
884 int val = 0;
885 size_t pos = 0;
886 ssize_t res;
887 char *p;
888 int i;
889 struct debug_data *d;
890 unsigned long addr = get_zeroed_page(GFP_KERNEL);
891 char *buf = (char *)addr;
892 if (!buf)
893 return -ENOMEM;
894
895 p = buf;
896
897 d = (struct debug_data *)file->private_data;
898
899 for (i = 0; i < num_of_items; i++) {
900 if (d[i].size == 1)
901 val = *((u8 *) d[i].addr);
902 else if (d[i].size == 2)
903 val = *((u16 *) d[i].addr);
904 else if (d[i].size == 4)
905 val = *((u32 *) d[i].addr);
906 else if (d[i].size == 8)
907 val = *((u64 *) d[i].addr);
908
909 pos += sprintf(p + pos, "%s=%d\n", d[i].name, val);
910 }
911
912 res = simple_read_from_buffer(userbuf, count, ppos, p, pos);
913
914 free_page(addr);
915 return res;
916 }
917
918 /**
919 * @brief proc write function
920 *
921 * @param f file pointer
922 * @param buf pointer to data buffer
923 * @param cnt data number to write
924 * @param data data to write
925 * @return number of data
926 */
927 static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf,
928 size_t cnt, loff_t *ppos)
929 {
930 int r, i;
931 char *pdata;
932 char *p;
933 char *p0;
934 char *p1;
935 char *p2;
936 struct debug_data *d = (struct debug_data *)f->private_data;
937
938 pdata = kmalloc(cnt, GFP_KERNEL);
939 if (pdata == NULL)
940 return 0;
941
942 if (copy_from_user(pdata, buf, cnt)) {
943 lbs_deb_debugfs("Copy from user failed\n");
944 kfree(pdata);
945 return 0;
946 }
947
948 p0 = pdata;
949 for (i = 0; i < num_of_items; i++) {
950 do {
951 p = strstr(p0, d[i].name);
952 if (p == NULL)
953 break;
954 p1 = strchr(p, '\n');
955 if (p1 == NULL)
956 break;
957 p0 = p1++;
958 p2 = strchr(p, '=');
959 if (!p2)
960 break;
961 p2++;
962 r = simple_strtoul(p2, NULL, 0);
963 if (d[i].size == 1)
964 *((u8 *) d[i].addr) = (u8) r;
965 else if (d[i].size == 2)
966 *((u16 *) d[i].addr) = (u16) r;
967 else if (d[i].size == 4)
968 *((u32 *) d[i].addr) = (u32) r;
969 else if (d[i].size == 8)
970 *((u64 *) d[i].addr) = (u64) r;
971 break;
972 } while (1);
973 }
974 kfree(pdata);
975
976 return (ssize_t)cnt;
977 }
978
979 static const struct file_operations lbs_debug_fops = {
980 .owner = THIS_MODULE,
981 .open = open_file_generic,
982 .write = lbs_debugfs_write,
983 .read = lbs_debugfs_read,
984 };
985
986 /**
987 * @brief create debug proc file
988 *
989 * @param priv pointer struct lbs_private
990 * @param dev pointer net_device
991 * @return N/A
992 */
993 static void lbs_debug_init(struct lbs_private *priv)
994 {
995 int i;
996
997 if (!priv->debugfs_dir)
998 return;
999
1000 for (i = 0; i < num_of_items; i++)
1001 items[i].addr += (size_t) priv;
1002
1003 priv->debugfs_debug = debugfs_create_file("debug", 0644,
1004 priv->debugfs_dir, &items[0],
1005 &lbs_debug_fops);
1006 }
1007 #endif
Linux with added FPC-III support