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Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge
[deliverable/linux.git] / drivers / net / wireless / ath / ath6kl / debug.c
1 /*
2 * Copyright (c) 2004-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include "core.h"
19
20 #include <linux/skbuff.h>
21 #include <linux/fs.h>
22 #include <linux/vmalloc.h>
23 #include <linux/export.h>
24
25 #include "debug.h"
26 #include "target.h"
27
28 struct ath6kl_fwlog_slot {
29 __le32 timestamp;
30 __le32 length;
31
32 /* max ATH6KL_FWLOG_PAYLOAD_SIZE bytes */
33 u8 payload[0];
34 };
35
36 #define ATH6KL_FWLOG_MAX_ENTRIES 20
37
38 #define ATH6KL_FWLOG_VALID_MASK 0x1ffff
39
40 int ath6kl_printk(const char *level, const char *fmt, ...)
41 {
42 struct va_format vaf;
43 va_list args;
44 int rtn;
45
46 va_start(args, fmt);
47
48 vaf.fmt = fmt;
49 vaf.va = &args;
50
51 rtn = printk("%sath6kl: %pV", level, &vaf);
52
53 va_end(args);
54
55 return rtn;
56 }
57 EXPORT_SYMBOL(ath6kl_printk);
58
59 #ifdef CONFIG_ATH6KL_DEBUG
60
61 void ath6kl_dbg(enum ATH6K_DEBUG_MASK mask, const char *fmt, ...)
62 {
63 struct va_format vaf;
64 va_list args;
65
66 if (!(debug_mask & mask))
67 return;
68
69 va_start(args, fmt);
70
71 vaf.fmt = fmt;
72 vaf.va = &args;
73
74 ath6kl_printk(KERN_DEBUG, "%pV", &vaf);
75
76 va_end(args);
77 }
78 EXPORT_SYMBOL(ath6kl_dbg);
79
80 void ath6kl_dbg_dump(enum ATH6K_DEBUG_MASK mask,
81 const char *msg, const char *prefix,
82 const void *buf, size_t len)
83 {
84 if (debug_mask & mask) {
85 if (msg)
86 ath6kl_dbg(mask, "%s\n", msg);
87
88 print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len);
89 }
90 }
91 EXPORT_SYMBOL(ath6kl_dbg_dump);
92
93 #define REG_OUTPUT_LEN_PER_LINE 25
94 #define REGTYPE_STR_LEN 100
95
96 struct ath6kl_diag_reg_info {
97 u32 reg_start;
98 u32 reg_end;
99 const char *reg_info;
100 };
101
102 static const struct ath6kl_diag_reg_info diag_reg[] = {
103 { 0x20000, 0x200fc, "General DMA and Rx registers" },
104 { 0x28000, 0x28900, "MAC PCU register & keycache" },
105 { 0x20800, 0x20a40, "QCU" },
106 { 0x21000, 0x212f0, "DCU" },
107 { 0x4000, 0x42e4, "RTC" },
108 { 0x540000, 0x540000 + (256 * 1024), "RAM" },
109 { 0x29800, 0x2B210, "Base Band" },
110 { 0x1C000, 0x1C748, "Analog" },
111 };
112
113 void ath6kl_dump_registers(struct ath6kl_device *dev,
114 struct ath6kl_irq_proc_registers *irq_proc_reg,
115 struct ath6kl_irq_enable_reg *irq_enable_reg)
116 {
117
118 ath6kl_dbg(ATH6KL_DBG_IRQ, ("<------- Register Table -------->\n"));
119
120 if (irq_proc_reg != NULL) {
121 ath6kl_dbg(ATH6KL_DBG_IRQ,
122 "Host Int status: 0x%x\n",
123 irq_proc_reg->host_int_status);
124 ath6kl_dbg(ATH6KL_DBG_IRQ,
125 "CPU Int status: 0x%x\n",
126 irq_proc_reg->cpu_int_status);
127 ath6kl_dbg(ATH6KL_DBG_IRQ,
128 "Error Int status: 0x%x\n",
129 irq_proc_reg->error_int_status);
130 ath6kl_dbg(ATH6KL_DBG_IRQ,
131 "Counter Int status: 0x%x\n",
132 irq_proc_reg->counter_int_status);
133 ath6kl_dbg(ATH6KL_DBG_IRQ,
134 "Mbox Frame: 0x%x\n",
135 irq_proc_reg->mbox_frame);
136 ath6kl_dbg(ATH6KL_DBG_IRQ,
137 "Rx Lookahead Valid: 0x%x\n",
138 irq_proc_reg->rx_lkahd_valid);
139 ath6kl_dbg(ATH6KL_DBG_IRQ,
140 "Rx Lookahead 0: 0x%x\n",
141 irq_proc_reg->rx_lkahd[0]);
142 ath6kl_dbg(ATH6KL_DBG_IRQ,
143 "Rx Lookahead 1: 0x%x\n",
144 irq_proc_reg->rx_lkahd[1]);
145
146 if (dev->ar->mbox_info.gmbox_addr != 0) {
147 /*
148 * If the target supports GMBOX hardware, dump some
149 * additional state.
150 */
151 ath6kl_dbg(ATH6KL_DBG_IRQ,
152 "GMBOX Host Int status 2: 0x%x\n",
153 irq_proc_reg->host_int_status2);
154 ath6kl_dbg(ATH6KL_DBG_IRQ,
155 "GMBOX RX Avail: 0x%x\n",
156 irq_proc_reg->gmbox_rx_avail);
157 ath6kl_dbg(ATH6KL_DBG_IRQ,
158 "GMBOX lookahead alias 0: 0x%x\n",
159 irq_proc_reg->rx_gmbox_lkahd_alias[0]);
160 ath6kl_dbg(ATH6KL_DBG_IRQ,
161 "GMBOX lookahead alias 1: 0x%x\n",
162 irq_proc_reg->rx_gmbox_lkahd_alias[1]);
163 }
164
165 }
166
167 if (irq_enable_reg != NULL) {
168 ath6kl_dbg(ATH6KL_DBG_IRQ,
169 "Int status Enable: 0x%x\n",
170 irq_enable_reg->int_status_en);
171 ath6kl_dbg(ATH6KL_DBG_IRQ, "Counter Int status Enable: 0x%x\n",
172 irq_enable_reg->cntr_int_status_en);
173 }
174 ath6kl_dbg(ATH6KL_DBG_IRQ, "<------------------------------->\n");
175 }
176
177 static void dump_cred_dist(struct htc_endpoint_credit_dist *ep_dist)
178 {
179 ath6kl_dbg(ATH6KL_DBG_CREDIT,
180 "--- endpoint: %d svc_id: 0x%X ---\n",
181 ep_dist->endpoint, ep_dist->svc_id);
182 ath6kl_dbg(ATH6KL_DBG_CREDIT, " dist_flags : 0x%X\n",
183 ep_dist->dist_flags);
184 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_norm : %d\n",
185 ep_dist->cred_norm);
186 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_min : %d\n",
187 ep_dist->cred_min);
188 ath6kl_dbg(ATH6KL_DBG_CREDIT, " credits : %d\n",
189 ep_dist->credits);
190 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_assngd : %d\n",
191 ep_dist->cred_assngd);
192 ath6kl_dbg(ATH6KL_DBG_CREDIT, " seek_cred : %d\n",
193 ep_dist->seek_cred);
194 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_sz : %d\n",
195 ep_dist->cred_sz);
196 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_per_msg : %d\n",
197 ep_dist->cred_per_msg);
198 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_to_dist : %d\n",
199 ep_dist->cred_to_dist);
200 ath6kl_dbg(ATH6KL_DBG_CREDIT, " txq_depth : %d\n",
201 get_queue_depth(&ep_dist->htc_ep->txq));
202 ath6kl_dbg(ATH6KL_DBG_CREDIT,
203 "----------------------------------\n");
204 }
205
206 /* FIXME: move to htc.c */
207 void dump_cred_dist_stats(struct htc_target *target)
208 {
209 struct htc_endpoint_credit_dist *ep_list;
210
211 list_for_each_entry(ep_list, &target->cred_dist_list, list)
212 dump_cred_dist(ep_list);
213
214 ath6kl_dbg(ATH6KL_DBG_CREDIT,
215 "credit distribution total %d free %d\n",
216 target->credit_info->total_avail_credits,
217 target->credit_info->cur_free_credits);
218 }
219
220 void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war)
221 {
222 switch (war) {
223 case ATH6KL_WAR_INVALID_RATE:
224 ar->debug.war_stats.invalid_rate++;
225 break;
226 }
227 }
228
229 static ssize_t read_file_war_stats(struct file *file, char __user *user_buf,
230 size_t count, loff_t *ppos)
231 {
232 struct ath6kl *ar = file->private_data;
233 char *buf;
234 unsigned int len = 0, buf_len = 1500;
235 ssize_t ret_cnt;
236
237 buf = kzalloc(buf_len, GFP_KERNEL);
238 if (!buf)
239 return -ENOMEM;
240
241 len += scnprintf(buf + len, buf_len - len, "\n");
242 len += scnprintf(buf + len, buf_len - len, "%25s\n",
243 "Workaround stats");
244 len += scnprintf(buf + len, buf_len - len, "%25s\n\n",
245 "=================");
246 len += scnprintf(buf + len, buf_len - len, "%20s %10u\n",
247 "Invalid rates", ar->debug.war_stats.invalid_rate);
248
249 if (WARN_ON(len > buf_len))
250 len = buf_len;
251
252 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
253
254 kfree(buf);
255 return ret_cnt;
256 }
257
258 static const struct file_operations fops_war_stats = {
259 .read = read_file_war_stats,
260 .open = simple_open,
261 .owner = THIS_MODULE,
262 .llseek = default_llseek,
263 };
264
265 void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len)
266 {
267 struct ath6kl_fwlog_slot *slot;
268 struct sk_buff *skb;
269 size_t slot_len;
270
271 if (WARN_ON(len > ATH6KL_FWLOG_PAYLOAD_SIZE))
272 return;
273
274 slot_len = sizeof(*slot) + ATH6KL_FWLOG_PAYLOAD_SIZE;
275
276 skb = alloc_skb(slot_len, GFP_KERNEL);
277 if (!skb)
278 return;
279
280 slot = (struct ath6kl_fwlog_slot *) skb_put(skb, slot_len);
281 slot->timestamp = cpu_to_le32(jiffies);
282 slot->length = cpu_to_le32(len);
283 memcpy(slot->payload, buf, len);
284
285 /* Need to pad each record to fixed length ATH6KL_FWLOG_PAYLOAD_SIZE */
286 memset(slot->payload + len, 0, ATH6KL_FWLOG_PAYLOAD_SIZE - len);
287
288 spin_lock(&ar->debug.fwlog_queue.lock);
289
290 __skb_queue_tail(&ar->debug.fwlog_queue, skb);
291 complete(&ar->debug.fwlog_completion);
292
293 /* drop oldest entries */
294 while (skb_queue_len(&ar->debug.fwlog_queue) >
295 ATH6KL_FWLOG_MAX_ENTRIES) {
296 skb = __skb_dequeue(&ar->debug.fwlog_queue);
297 kfree_skb(skb);
298 }
299
300 spin_unlock(&ar->debug.fwlog_queue.lock);
301
302 return;
303 }
304
305 static int ath6kl_fwlog_open(struct inode *inode, struct file *file)
306 {
307 struct ath6kl *ar = inode->i_private;
308
309 if (ar->debug.fwlog_open)
310 return -EBUSY;
311
312 ar->debug.fwlog_open = true;
313
314 file->private_data = inode->i_private;
315 return 0;
316 }
317
318 static int ath6kl_fwlog_release(struct inode *inode, struct file *file)
319 {
320 struct ath6kl *ar = inode->i_private;
321
322 ar->debug.fwlog_open = false;
323
324 return 0;
325 }
326
327 static ssize_t ath6kl_fwlog_read(struct file *file, char __user *user_buf,
328 size_t count, loff_t *ppos)
329 {
330 struct ath6kl *ar = file->private_data;
331 struct sk_buff *skb;
332 ssize_t ret_cnt;
333 size_t len = 0;
334 char *buf;
335
336 buf = vmalloc(count);
337 if (!buf)
338 return -ENOMEM;
339
340 /* read undelivered logs from firmware */
341 ath6kl_read_fwlogs(ar);
342
343 spin_lock(&ar->debug.fwlog_queue.lock);
344
345 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) {
346 if (skb->len > count - len) {
347 /* not enough space, put skb back and leave */
348 __skb_queue_head(&ar->debug.fwlog_queue, skb);
349 break;
350 }
351
352
353 memcpy(buf + len, skb->data, skb->len);
354 len += skb->len;
355
356 kfree_skb(skb);
357 }
358
359 spin_unlock(&ar->debug.fwlog_queue.lock);
360
361 /* FIXME: what to do if len == 0? */
362
363 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
364
365 vfree(buf);
366
367 return ret_cnt;
368 }
369
370 static const struct file_operations fops_fwlog = {
371 .open = ath6kl_fwlog_open,
372 .release = ath6kl_fwlog_release,
373 .read = ath6kl_fwlog_read,
374 .owner = THIS_MODULE,
375 .llseek = default_llseek,
376 };
377
378 static ssize_t ath6kl_fwlog_block_read(struct file *file,
379 char __user *user_buf,
380 size_t count,
381 loff_t *ppos)
382 {
383 struct ath6kl *ar = file->private_data;
384 struct sk_buff *skb;
385 ssize_t ret_cnt;
386 size_t len = 0, not_copied;
387 char *buf;
388 int ret;
389
390 buf = vmalloc(count);
391 if (!buf)
392 return -ENOMEM;
393
394 spin_lock(&ar->debug.fwlog_queue.lock);
395
396 if (skb_queue_len(&ar->debug.fwlog_queue) == 0) {
397 /* we must init under queue lock */
398 init_completion(&ar->debug.fwlog_completion);
399
400 spin_unlock(&ar->debug.fwlog_queue.lock);
401
402 ret = wait_for_completion_interruptible(
403 &ar->debug.fwlog_completion);
404 if (ret == -ERESTARTSYS)
405 return ret;
406
407 spin_lock(&ar->debug.fwlog_queue.lock);
408 }
409
410 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) {
411 if (skb->len > count - len) {
412 /* not enough space, put skb back and leave */
413 __skb_queue_head(&ar->debug.fwlog_queue, skb);
414 break;
415 }
416
417
418 memcpy(buf + len, skb->data, skb->len);
419 len += skb->len;
420
421 kfree_skb(skb);
422 }
423
424 spin_unlock(&ar->debug.fwlog_queue.lock);
425
426 /* FIXME: what to do if len == 0? */
427
428 not_copied = copy_to_user(user_buf, buf, len);
429 if (not_copied != 0) {
430 ret_cnt = -EFAULT;
431 goto out;
432 }
433
434 *ppos = *ppos + len;
435
436 ret_cnt = len;
437
438 out:
439 vfree(buf);
440
441 return ret_cnt;
442 }
443
444 static const struct file_operations fops_fwlog_block = {
445 .open = ath6kl_fwlog_open,
446 .release = ath6kl_fwlog_release,
447 .read = ath6kl_fwlog_block_read,
448 .owner = THIS_MODULE,
449 .llseek = default_llseek,
450 };
451
452 static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf,
453 size_t count, loff_t *ppos)
454 {
455 struct ath6kl *ar = file->private_data;
456 char buf[16];
457 int len;
458
459 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask);
460
461 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
462 }
463
464 static ssize_t ath6kl_fwlog_mask_write(struct file *file,
465 const char __user *user_buf,
466 size_t count, loff_t *ppos)
467 {
468 struct ath6kl *ar = file->private_data;
469 int ret;
470
471 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask);
472 if (ret)
473 return ret;
474
475 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi,
476 ATH6KL_FWLOG_VALID_MASK,
477 ar->debug.fwlog_mask);
478 if (ret)
479 return ret;
480
481 return count;
482 }
483
484 static const struct file_operations fops_fwlog_mask = {
485 .open = simple_open,
486 .read = ath6kl_fwlog_mask_read,
487 .write = ath6kl_fwlog_mask_write,
488 .owner = THIS_MODULE,
489 .llseek = default_llseek,
490 };
491
492 static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf,
493 size_t count, loff_t *ppos)
494 {
495 struct ath6kl *ar = file->private_data;
496 struct ath6kl_vif *vif;
497 struct target_stats *tgt_stats;
498 char *buf;
499 unsigned int len = 0, buf_len = 1500;
500 int i;
501 long left;
502 ssize_t ret_cnt;
503
504 vif = ath6kl_vif_first(ar);
505 if (!vif)
506 return -EIO;
507
508 tgt_stats = &vif->target_stats;
509
510 buf = kzalloc(buf_len, GFP_KERNEL);
511 if (!buf)
512 return -ENOMEM;
513
514 if (down_interruptible(&ar->sem)) {
515 kfree(buf);
516 return -EBUSY;
517 }
518
519 set_bit(STATS_UPDATE_PEND, &vif->flags);
520
521 if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) {
522 up(&ar->sem);
523 kfree(buf);
524 return -EIO;
525 }
526
527 left = wait_event_interruptible_timeout(ar->event_wq,
528 !test_bit(STATS_UPDATE_PEND,
529 &vif->flags), WMI_TIMEOUT);
530
531 up(&ar->sem);
532
533 if (left <= 0) {
534 kfree(buf);
535 return -ETIMEDOUT;
536 }
537
538 len += scnprintf(buf + len, buf_len - len, "\n");
539 len += scnprintf(buf + len, buf_len - len, "%25s\n",
540 "Target Tx stats");
541 len += scnprintf(buf + len, buf_len - len, "%25s\n\n",
542 "=================");
543 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
544 "Ucast packets", tgt_stats->tx_ucast_pkt);
545 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
546 "Bcast packets", tgt_stats->tx_bcast_pkt);
547 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
548 "Ucast byte", tgt_stats->tx_ucast_byte);
549 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
550 "Bcast byte", tgt_stats->tx_bcast_byte);
551 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
552 "Rts success cnt", tgt_stats->tx_rts_success_cnt);
553 for (i = 0; i < 4; i++)
554 len += scnprintf(buf + len, buf_len - len,
555 "%18s %d %10llu\n", "PER on ac",
556 i, tgt_stats->tx_pkt_per_ac[i]);
557 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
558 "Error", tgt_stats->tx_err);
559 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
560 "Fail count", tgt_stats->tx_fail_cnt);
561 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
562 "Retry count", tgt_stats->tx_retry_cnt);
563 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
564 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt);
565 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
566 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt);
567 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n",
568 "TKIP counter measure used",
569 tgt_stats->tkip_cnter_measures_invoked);
570
571 len += scnprintf(buf + len, buf_len - len, "%25s\n",
572 "Target Rx stats");
573 len += scnprintf(buf + len, buf_len - len, "%25s\n",
574 "=================");
575
576 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
577 "Ucast packets", tgt_stats->rx_ucast_pkt);
578 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
579 "Ucast Rate", tgt_stats->rx_ucast_rate);
580 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
581 "Bcast packets", tgt_stats->rx_bcast_pkt);
582 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
583 "Ucast byte", tgt_stats->rx_ucast_byte);
584 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
585 "Bcast byte", tgt_stats->rx_bcast_byte);
586 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
587 "Fragmented pkt", tgt_stats->rx_frgment_pkt);
588 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
589 "Error", tgt_stats->rx_err);
590 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
591 "CRC Err", tgt_stats->rx_crc_err);
592 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
593 "Key chache miss", tgt_stats->rx_key_cache_miss);
594 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
595 "Decrypt Err", tgt_stats->rx_decrypt_err);
596 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
597 "Duplicate frame", tgt_stats->rx_dupl_frame);
598 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
599 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail);
600 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
601 "TKIP format err", tgt_stats->tkip_fmt_err);
602 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
603 "CCMP format Err", tgt_stats->ccmp_fmt_err);
604 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n",
605 "CCMP Replay Err", tgt_stats->ccmp_replays);
606
607 len += scnprintf(buf + len, buf_len - len, "%25s\n",
608 "Misc Target stats");
609 len += scnprintf(buf + len, buf_len - len, "%25s\n",
610 "=================");
611 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
612 "Beacon Miss count", tgt_stats->cs_bmiss_cnt);
613 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
614 "Num Connects", tgt_stats->cs_connect_cnt);
615 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
616 "Num disconnects", tgt_stats->cs_discon_cnt);
617 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
618 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi);
619
620 if (len > buf_len)
621 len = buf_len;
622
623 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
624
625 kfree(buf);
626 return ret_cnt;
627 }
628
629 static const struct file_operations fops_tgt_stats = {
630 .read = read_file_tgt_stats,
631 .open = simple_open,
632 .owner = THIS_MODULE,
633 .llseek = default_llseek,
634 };
635
636 #define print_credit_info(fmt_str, ep_list_field) \
637 (len += scnprintf(buf + len, buf_len - len, fmt_str, \
638 ep_list->ep_list_field))
639 #define CREDIT_INFO_DISPLAY_STRING_LEN 200
640 #define CREDIT_INFO_LEN 128
641
642 static ssize_t read_file_credit_dist_stats(struct file *file,
643 char __user *user_buf,
644 size_t count, loff_t *ppos)
645 {
646 struct ath6kl *ar = file->private_data;
647 struct htc_target *target = ar->htc_target;
648 struct htc_endpoint_credit_dist *ep_list;
649 char *buf;
650 unsigned int buf_len, len = 0;
651 ssize_t ret_cnt;
652
653 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN +
654 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN;
655 buf = kzalloc(buf_len, GFP_KERNEL);
656 if (!buf)
657 return -ENOMEM;
658
659 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n",
660 "Total Avail Credits: ",
661 target->credit_info->total_avail_credits);
662 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n",
663 "Free credits :",
664 target->credit_info->cur_free_credits);
665
666 len += scnprintf(buf + len, buf_len - len,
667 " Epid Flags Cred_norm Cred_min Credits Cred_assngd"
668 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist"
669 " qdepth\n");
670
671 list_for_each_entry(ep_list, &target->cred_dist_list, list) {
672 print_credit_info(" %2d", endpoint);
673 print_credit_info("%10x", dist_flags);
674 print_credit_info("%8d", cred_norm);
675 print_credit_info("%9d", cred_min);
676 print_credit_info("%9d", credits);
677 print_credit_info("%10d", cred_assngd);
678 print_credit_info("%13d", seek_cred);
679 print_credit_info("%12d", cred_sz);
680 print_credit_info("%9d", cred_per_msg);
681 print_credit_info("%14d", cred_to_dist);
682 len += scnprintf(buf + len, buf_len - len, "%12d\n",
683 get_queue_depth(&ep_list->htc_ep->txq));
684 }
685
686 if (len > buf_len)
687 len = buf_len;
688
689 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
690 kfree(buf);
691 return ret_cnt;
692 }
693
694 static const struct file_operations fops_credit_dist_stats = {
695 .read = read_file_credit_dist_stats,
696 .open = simple_open,
697 .owner = THIS_MODULE,
698 .llseek = default_llseek,
699 };
700
701 static unsigned int print_endpoint_stat(struct htc_target *target, char *buf,
702 unsigned int buf_len, unsigned int len,
703 int offset, const char *name)
704 {
705 int i;
706 struct htc_endpoint_stats *ep_st;
707 u32 *counter;
708
709 len += scnprintf(buf + len, buf_len - len, "%s:", name);
710 for (i = 0; i < ENDPOINT_MAX; i++) {
711 ep_st = &target->endpoint[i].ep_st;
712 counter = ((u32 *) ep_st) + (offset / 4);
713 len += scnprintf(buf + len, buf_len - len, " %u", *counter);
714 }
715 len += scnprintf(buf + len, buf_len - len, "\n");
716
717 return len;
718 }
719
720 static ssize_t ath6kl_endpoint_stats_read(struct file *file,
721 char __user *user_buf,
722 size_t count, loff_t *ppos)
723 {
724 struct ath6kl *ar = file->private_data;
725 struct htc_target *target = ar->htc_target;
726 char *buf;
727 unsigned int buf_len, len = 0;
728 ssize_t ret_cnt;
729
730 buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) *
731 (25 + ENDPOINT_MAX * 11);
732 buf = kmalloc(buf_len, GFP_KERNEL);
733 if (!buf)
734 return -ENOMEM;
735
736 #define EPSTAT(name) \
737 do { \
738 len = print_endpoint_stat(target, buf, buf_len, len, \
739 offsetof(struct htc_endpoint_stats, \
740 name), \
741 #name); \
742 } while (0)
743
744 EPSTAT(cred_low_indicate);
745 EPSTAT(tx_issued);
746 EPSTAT(tx_pkt_bundled);
747 EPSTAT(tx_bundles);
748 EPSTAT(tx_dropped);
749 EPSTAT(tx_cred_rpt);
750 EPSTAT(cred_rpt_from_rx);
751 EPSTAT(cred_rpt_from_other);
752 EPSTAT(cred_rpt_ep0);
753 EPSTAT(cred_from_rx);
754 EPSTAT(cred_from_other);
755 EPSTAT(cred_from_ep0);
756 EPSTAT(cred_cosumd);
757 EPSTAT(cred_retnd);
758 EPSTAT(rx_pkts);
759 EPSTAT(rx_lkahds);
760 EPSTAT(rx_bundl);
761 EPSTAT(rx_bundle_lkahd);
762 EPSTAT(rx_bundle_from_hdr);
763 EPSTAT(rx_alloc_thresh_hit);
764 EPSTAT(rxalloc_thresh_byte);
765 #undef EPSTAT
766
767 if (len > buf_len)
768 len = buf_len;
769
770 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
771 kfree(buf);
772 return ret_cnt;
773 }
774
775 static ssize_t ath6kl_endpoint_stats_write(struct file *file,
776 const char __user *user_buf,
777 size_t count, loff_t *ppos)
778 {
779 struct ath6kl *ar = file->private_data;
780 struct htc_target *target = ar->htc_target;
781 int ret, i;
782 u32 val;
783 struct htc_endpoint_stats *ep_st;
784
785 ret = kstrtou32_from_user(user_buf, count, 0, &val);
786 if (ret)
787 return ret;
788 if (val == 0) {
789 for (i = 0; i < ENDPOINT_MAX; i++) {
790 ep_st = &target->endpoint[i].ep_st;
791 memset(ep_st, 0, sizeof(*ep_st));
792 }
793 }
794
795 return count;
796 }
797
798 static const struct file_operations fops_endpoint_stats = {
799 .open = simple_open,
800 .read = ath6kl_endpoint_stats_read,
801 .write = ath6kl_endpoint_stats_write,
802 .owner = THIS_MODULE,
803 .llseek = default_llseek,
804 };
805
806 static unsigned long ath6kl_get_num_reg(void)
807 {
808 int i;
809 unsigned long n_reg = 0;
810
811 for (i = 0; i < ARRAY_SIZE(diag_reg); i++)
812 n_reg = n_reg +
813 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1;
814
815 return n_reg;
816 }
817
818 static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr)
819 {
820 int i;
821
822 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) {
823 if (reg_addr >= diag_reg[i].reg_start &&
824 reg_addr <= diag_reg[i].reg_end)
825 return true;
826 }
827
828 return false;
829 }
830
831 static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf,
832 size_t count, loff_t *ppos)
833 {
834 struct ath6kl *ar = file->private_data;
835 u8 buf[50];
836 unsigned int len = 0;
837
838 if (ar->debug.dbgfs_diag_reg)
839 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n",
840 ar->debug.dbgfs_diag_reg);
841 else
842 len += scnprintf(buf + len, sizeof(buf) - len,
843 "All diag registers\n");
844
845 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
846 }
847
848 static ssize_t ath6kl_regread_write(struct file *file,
849 const char __user *user_buf,
850 size_t count, loff_t *ppos)
851 {
852 struct ath6kl *ar = file->private_data;
853 unsigned long reg_addr;
854
855 if (kstrtoul_from_user(user_buf, count, 0, &reg_addr))
856 return -EINVAL;
857
858 if ((reg_addr % 4) != 0)
859 return -EINVAL;
860
861 if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr))
862 return -EINVAL;
863
864 ar->debug.dbgfs_diag_reg = reg_addr;
865
866 return count;
867 }
868
869 static const struct file_operations fops_diag_reg_read = {
870 .read = ath6kl_regread_read,
871 .write = ath6kl_regread_write,
872 .open = simple_open,
873 .owner = THIS_MODULE,
874 .llseek = default_llseek,
875 };
876
877 static int ath6kl_regdump_open(struct inode *inode, struct file *file)
878 {
879 struct ath6kl *ar = inode->i_private;
880 u8 *buf;
881 unsigned long int reg_len;
882 unsigned int len = 0, n_reg;
883 u32 addr;
884 __le32 reg_val;
885 int i, status;
886
887 /* Dump all the registers if no register is specified */
888 if (!ar->debug.dbgfs_diag_reg)
889 n_reg = ath6kl_get_num_reg();
890 else
891 n_reg = 1;
892
893 reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE;
894 if (n_reg > 1)
895 reg_len += REGTYPE_STR_LEN;
896
897 buf = vmalloc(reg_len);
898 if (!buf)
899 return -ENOMEM;
900
901 if (n_reg == 1) {
902 addr = ar->debug.dbgfs_diag_reg;
903
904 status = ath6kl_diag_read32(ar,
905 TARG_VTOP(ar->target_type, addr),
906 (u32 *)&reg_val);
907 if (status)
908 goto fail_reg_read;
909
910 len += scnprintf(buf + len, reg_len - len,
911 "0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val));
912 goto done;
913 }
914
915 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) {
916 len += scnprintf(buf + len, reg_len - len,
917 "%s\n", diag_reg[i].reg_info);
918 for (addr = diag_reg[i].reg_start;
919 addr <= diag_reg[i].reg_end; addr += 4) {
920 status = ath6kl_diag_read32(ar,
921 TARG_VTOP(ar->target_type, addr),
922 (u32 *)&reg_val);
923 if (status)
924 goto fail_reg_read;
925
926 len += scnprintf(buf + len, reg_len - len,
927 "0x%06x 0x%08x\n",
928 addr, le32_to_cpu(reg_val));
929 }
930 }
931
932 done:
933 file->private_data = buf;
934 return 0;
935
936 fail_reg_read:
937 ath6kl_warn("Unable to read memory:%u\n", addr);
938 vfree(buf);
939 return -EIO;
940 }
941
942 static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf,
943 size_t count, loff_t *ppos)
944 {
945 u8 *buf = file->private_data;
946 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
947 }
948
949 static int ath6kl_regdump_release(struct inode *inode, struct file *file)
950 {
951 vfree(file->private_data);
952 return 0;
953 }
954
955 static const struct file_operations fops_reg_dump = {
956 .open = ath6kl_regdump_open,
957 .read = ath6kl_regdump_read,
958 .release = ath6kl_regdump_release,
959 .owner = THIS_MODULE,
960 .llseek = default_llseek,
961 };
962
963 static ssize_t ath6kl_lrssi_roam_write(struct file *file,
964 const char __user *user_buf,
965 size_t count, loff_t *ppos)
966 {
967 struct ath6kl *ar = file->private_data;
968 unsigned long lrssi_roam_threshold;
969
970 if (kstrtoul_from_user(user_buf, count, 0, &lrssi_roam_threshold))
971 return -EINVAL;
972
973 ar->lrssi_roam_threshold = lrssi_roam_threshold;
974
975 ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold);
976
977 return count;
978 }
979
980 static ssize_t ath6kl_lrssi_roam_read(struct file *file,
981 char __user *user_buf,
982 size_t count, loff_t *ppos)
983 {
984 struct ath6kl *ar = file->private_data;
985 char buf[32];
986 unsigned int len;
987
988 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold);
989
990 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
991 }
992
993 static const struct file_operations fops_lrssi_roam_threshold = {
994 .read = ath6kl_lrssi_roam_read,
995 .write = ath6kl_lrssi_roam_write,
996 .open = simple_open,
997 .owner = THIS_MODULE,
998 .llseek = default_llseek,
999 };
1000
1001 static ssize_t ath6kl_regwrite_read(struct file *file,
1002 char __user *user_buf,
1003 size_t count, loff_t *ppos)
1004 {
1005 struct ath6kl *ar = file->private_data;
1006 u8 buf[32];
1007 unsigned int len = 0;
1008
1009 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n",
1010 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr);
1011
1012 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1013 }
1014
1015 static ssize_t ath6kl_regwrite_write(struct file *file,
1016 const char __user *user_buf,
1017 size_t count, loff_t *ppos)
1018 {
1019 struct ath6kl *ar = file->private_data;
1020 char buf[32];
1021 char *sptr, *token;
1022 unsigned int len = 0;
1023 u32 reg_addr, reg_val;
1024
1025 len = min(count, sizeof(buf) - 1);
1026 if (copy_from_user(buf, user_buf, len))
1027 return -EFAULT;
1028
1029 buf[len] = '\0';
1030 sptr = buf;
1031
1032 token = strsep(&sptr, "=");
1033 if (!token)
1034 return -EINVAL;
1035
1036 if (kstrtou32(token, 0, &reg_addr))
1037 return -EINVAL;
1038
1039 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr))
1040 return -EINVAL;
1041
1042 if (kstrtou32(sptr, 0, &reg_val))
1043 return -EINVAL;
1044
1045 ar->debug.diag_reg_addr_wr = reg_addr;
1046 ar->debug.diag_reg_val_wr = reg_val;
1047
1048 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr,
1049 cpu_to_le32(ar->debug.diag_reg_val_wr)))
1050 return -EIO;
1051
1052 return count;
1053 }
1054
1055 static const struct file_operations fops_diag_reg_write = {
1056 .read = ath6kl_regwrite_read,
1057 .write = ath6kl_regwrite_write,
1058 .open = simple_open,
1059 .owner = THIS_MODULE,
1060 .llseek = default_llseek,
1061 };
1062
1063 int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf,
1064 size_t len)
1065 {
1066 const struct wmi_target_roam_tbl *tbl;
1067 u16 num_entries;
1068
1069 if (len < sizeof(*tbl))
1070 return -EINVAL;
1071
1072 tbl = (const struct wmi_target_roam_tbl *) buf;
1073 num_entries = le16_to_cpu(tbl->num_entries);
1074 if (sizeof(*tbl) + num_entries * sizeof(struct wmi_bss_roam_info) >
1075 len)
1076 return -EINVAL;
1077
1078 if (ar->debug.roam_tbl == NULL ||
1079 ar->debug.roam_tbl_len < (unsigned int) len) {
1080 kfree(ar->debug.roam_tbl);
1081 ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC);
1082 if (ar->debug.roam_tbl == NULL)
1083 return -ENOMEM;
1084 }
1085
1086 memcpy(ar->debug.roam_tbl, buf, len);
1087 ar->debug.roam_tbl_len = len;
1088
1089 if (test_bit(ROAM_TBL_PEND, &ar->flag)) {
1090 clear_bit(ROAM_TBL_PEND, &ar->flag);
1091 wake_up(&ar->event_wq);
1092 }
1093
1094 return 0;
1095 }
1096
1097 static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf,
1098 size_t count, loff_t *ppos)
1099 {
1100 struct ath6kl *ar = file->private_data;
1101 int ret;
1102 long left;
1103 struct wmi_target_roam_tbl *tbl;
1104 u16 num_entries, i;
1105 char *buf;
1106 unsigned int len, buf_len;
1107 ssize_t ret_cnt;
1108
1109 if (down_interruptible(&ar->sem))
1110 return -EBUSY;
1111
1112 set_bit(ROAM_TBL_PEND, &ar->flag);
1113
1114 ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi);
1115 if (ret) {
1116 up(&ar->sem);
1117 return ret;
1118 }
1119
1120 left = wait_event_interruptible_timeout(
1121 ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT);
1122 up(&ar->sem);
1123
1124 if (left <= 0)
1125 return -ETIMEDOUT;
1126
1127 if (ar->debug.roam_tbl == NULL)
1128 return -ENOMEM;
1129
1130 tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl;
1131 num_entries = le16_to_cpu(tbl->num_entries);
1132
1133 buf_len = 100 + num_entries * 100;
1134 buf = kzalloc(buf_len, GFP_KERNEL);
1135 if (buf == NULL)
1136 return -ENOMEM;
1137 len = 0;
1138 len += scnprintf(buf + len, buf_len - len,
1139 "roam_mode=%u\n\n"
1140 "# roam_util bssid rssi rssidt last_rssi util bias\n",
1141 le16_to_cpu(tbl->roam_mode));
1142
1143 for (i = 0; i < num_entries; i++) {
1144 struct wmi_bss_roam_info *info = &tbl->info[i];
1145 len += scnprintf(buf + len, buf_len - len,
1146 "%d %pM %d %d %d %d %d\n",
1147 a_sle32_to_cpu(info->roam_util), info->bssid,
1148 info->rssi, info->rssidt, info->last_rssi,
1149 info->util, info->bias);
1150 }
1151
1152 if (len > buf_len)
1153 len = buf_len;
1154
1155 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1156
1157 kfree(buf);
1158 return ret_cnt;
1159 }
1160
1161 static const struct file_operations fops_roam_table = {
1162 .read = ath6kl_roam_table_read,
1163 .open = simple_open,
1164 .owner = THIS_MODULE,
1165 .llseek = default_llseek,
1166 };
1167
1168 static ssize_t ath6kl_force_roam_write(struct file *file,
1169 const char __user *user_buf,
1170 size_t count, loff_t *ppos)
1171 {
1172 struct ath6kl *ar = file->private_data;
1173 int ret;
1174 char buf[20];
1175 size_t len;
1176 u8 bssid[ETH_ALEN];
1177 int i;
1178 int addr[ETH_ALEN];
1179
1180 len = min(count, sizeof(buf) - 1);
1181 if (copy_from_user(buf, user_buf, len))
1182 return -EFAULT;
1183 buf[len] = '\0';
1184
1185 if (sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x",
1186 &addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5])
1187 != ETH_ALEN)
1188 return -EINVAL;
1189 for (i = 0; i < ETH_ALEN; i++)
1190 bssid[i] = addr[i];
1191
1192 ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid);
1193 if (ret)
1194 return ret;
1195
1196 return count;
1197 }
1198
1199 static const struct file_operations fops_force_roam = {
1200 .write = ath6kl_force_roam_write,
1201 .open = simple_open,
1202 .owner = THIS_MODULE,
1203 .llseek = default_llseek,
1204 };
1205
1206 static ssize_t ath6kl_roam_mode_write(struct file *file,
1207 const char __user *user_buf,
1208 size_t count, loff_t *ppos)
1209 {
1210 struct ath6kl *ar = file->private_data;
1211 int ret;
1212 char buf[20];
1213 size_t len;
1214 enum wmi_roam_mode mode;
1215
1216 len = min(count, sizeof(buf) - 1);
1217 if (copy_from_user(buf, user_buf, len))
1218 return -EFAULT;
1219 buf[len] = '\0';
1220 if (len > 0 && buf[len - 1] == '\n')
1221 buf[len - 1] = '\0';
1222
1223 if (strcasecmp(buf, "default") == 0)
1224 mode = WMI_DEFAULT_ROAM_MODE;
1225 else if (strcasecmp(buf, "bssbias") == 0)
1226 mode = WMI_HOST_BIAS_ROAM_MODE;
1227 else if (strcasecmp(buf, "lock") == 0)
1228 mode = WMI_LOCK_BSS_MODE;
1229 else
1230 return -EINVAL;
1231
1232 ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode);
1233 if (ret)
1234 return ret;
1235
1236 return count;
1237 }
1238
1239 static const struct file_operations fops_roam_mode = {
1240 .write = ath6kl_roam_mode_write,
1241 .open = simple_open,
1242 .owner = THIS_MODULE,
1243 .llseek = default_llseek,
1244 };
1245
1246 void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive)
1247 {
1248 ar->debug.keepalive = keepalive;
1249 }
1250
1251 static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf,
1252 size_t count, loff_t *ppos)
1253 {
1254 struct ath6kl *ar = file->private_data;
1255 char buf[16];
1256 int len;
1257
1258 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive);
1259
1260 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1261 }
1262
1263 static ssize_t ath6kl_keepalive_write(struct file *file,
1264 const char __user *user_buf,
1265 size_t count, loff_t *ppos)
1266 {
1267 struct ath6kl *ar = file->private_data;
1268 int ret;
1269 u8 val;
1270
1271 ret = kstrtou8_from_user(user_buf, count, 0, &val);
1272 if (ret)
1273 return ret;
1274
1275 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val);
1276 if (ret)
1277 return ret;
1278
1279 return count;
1280 }
1281
1282 static const struct file_operations fops_keepalive = {
1283 .open = simple_open,
1284 .read = ath6kl_keepalive_read,
1285 .write = ath6kl_keepalive_write,
1286 .owner = THIS_MODULE,
1287 .llseek = default_llseek,
1288 };
1289
1290 void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout)
1291 {
1292 ar->debug.disc_timeout = timeout;
1293 }
1294
1295 static ssize_t ath6kl_disconnect_timeout_read(struct file *file,
1296 char __user *user_buf,
1297 size_t count, loff_t *ppos)
1298 {
1299 struct ath6kl *ar = file->private_data;
1300 char buf[16];
1301 int len;
1302
1303 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.disc_timeout);
1304
1305 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1306 }
1307
1308 static ssize_t ath6kl_disconnect_timeout_write(struct file *file,
1309 const char __user *user_buf,
1310 size_t count, loff_t *ppos)
1311 {
1312 struct ath6kl *ar = file->private_data;
1313 int ret;
1314 u8 val;
1315
1316 ret = kstrtou8_from_user(user_buf, count, 0, &val);
1317 if (ret)
1318 return ret;
1319
1320 ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, 0, val);
1321 if (ret)
1322 return ret;
1323
1324 return count;
1325 }
1326
1327 static const struct file_operations fops_disconnect_timeout = {
1328 .open = simple_open,
1329 .read = ath6kl_disconnect_timeout_read,
1330 .write = ath6kl_disconnect_timeout_write,
1331 .owner = THIS_MODULE,
1332 .llseek = default_llseek,
1333 };
1334
1335 static ssize_t ath6kl_create_qos_write(struct file *file,
1336 const char __user *user_buf,
1337 size_t count, loff_t *ppos)
1338 {
1339
1340 struct ath6kl *ar = file->private_data;
1341 struct ath6kl_vif *vif;
1342 char buf[200];
1343 ssize_t len;
1344 char *sptr, *token;
1345 struct wmi_create_pstream_cmd pstream;
1346 u32 val32;
1347 u16 val16;
1348
1349 vif = ath6kl_vif_first(ar);
1350 if (!vif)
1351 return -EIO;
1352
1353 len = min(count, sizeof(buf) - 1);
1354 if (copy_from_user(buf, user_buf, len))
1355 return -EFAULT;
1356 buf[len] = '\0';
1357 sptr = buf;
1358
1359 token = strsep(&sptr, " ");
1360 if (!token)
1361 return -EINVAL;
1362 if (kstrtou8(token, 0, &pstream.user_pri))
1363 return -EINVAL;
1364
1365 token = strsep(&sptr, " ");
1366 if (!token)
1367 return -EINVAL;
1368 if (kstrtou8(token, 0, &pstream.traffic_direc))
1369 return -EINVAL;
1370
1371 token = strsep(&sptr, " ");
1372 if (!token)
1373 return -EINVAL;
1374 if (kstrtou8(token, 0, &pstream.traffic_class))
1375 return -EINVAL;
1376
1377 token = strsep(&sptr, " ");
1378 if (!token)
1379 return -EINVAL;
1380 if (kstrtou8(token, 0, &pstream.traffic_type))
1381 return -EINVAL;
1382
1383 token = strsep(&sptr, " ");
1384 if (!token)
1385 return -EINVAL;
1386 if (kstrtou8(token, 0, &pstream.voice_psc_cap))
1387 return -EINVAL;
1388
1389 token = strsep(&sptr, " ");
1390 if (!token)
1391 return -EINVAL;
1392 if (kstrtou32(token, 0, &val32))
1393 return -EINVAL;
1394 pstream.min_service_int = cpu_to_le32(val32);
1395
1396 token = strsep(&sptr, " ");
1397 if (!token)
1398 return -EINVAL;
1399 if (kstrtou32(token, 0, &val32))
1400 return -EINVAL;
1401 pstream.max_service_int = cpu_to_le32(val32);
1402
1403 token = strsep(&sptr, " ");
1404 if (!token)
1405 return -EINVAL;
1406 if (kstrtou32(token, 0, &val32))
1407 return -EINVAL;
1408 pstream.inactivity_int = cpu_to_le32(val32);
1409
1410 token = strsep(&sptr, " ");
1411 if (!token)
1412 return -EINVAL;
1413 if (kstrtou32(token, 0, &val32))
1414 return -EINVAL;
1415 pstream.suspension_int = cpu_to_le32(val32);
1416
1417 token = strsep(&sptr, " ");
1418 if (!token)
1419 return -EINVAL;
1420 if (kstrtou32(token, 0, &val32))
1421 return -EINVAL;
1422 pstream.service_start_time = cpu_to_le32(val32);
1423
1424 token = strsep(&sptr, " ");
1425 if (!token)
1426 return -EINVAL;
1427 if (kstrtou8(token, 0, &pstream.tsid))
1428 return -EINVAL;
1429
1430 token = strsep(&sptr, " ");
1431 if (!token)
1432 return -EINVAL;
1433 if (kstrtou16(token, 0, &val16))
1434 return -EINVAL;
1435 pstream.nominal_msdu = cpu_to_le16(val16);
1436
1437 token = strsep(&sptr, " ");
1438 if (!token)
1439 return -EINVAL;
1440 if (kstrtou16(token, 0, &val16))
1441 return -EINVAL;
1442 pstream.max_msdu = cpu_to_le16(val16);
1443
1444 token = strsep(&sptr, " ");
1445 if (!token)
1446 return -EINVAL;
1447 if (kstrtou32(token, 0, &val32))
1448 return -EINVAL;
1449 pstream.min_data_rate = cpu_to_le32(val32);
1450
1451 token = strsep(&sptr, " ");
1452 if (!token)
1453 return -EINVAL;
1454 if (kstrtou32(token, 0, &val32))
1455 return -EINVAL;
1456 pstream.mean_data_rate = cpu_to_le32(val32);
1457
1458 token = strsep(&sptr, " ");
1459 if (!token)
1460 return -EINVAL;
1461 if (kstrtou32(token, 0, &val32))
1462 return -EINVAL;
1463 pstream.peak_data_rate = cpu_to_le32(val32);
1464
1465 token = strsep(&sptr, " ");
1466 if (!token)
1467 return -EINVAL;
1468 if (kstrtou32(token, 0, &val32))
1469 return -EINVAL;
1470 pstream.max_burst_size = cpu_to_le32(val32);
1471
1472 token = strsep(&sptr, " ");
1473 if (!token)
1474 return -EINVAL;
1475 if (kstrtou32(token, 0, &val32))
1476 return -EINVAL;
1477 pstream.delay_bound = cpu_to_le32(val32);
1478
1479 token = strsep(&sptr, " ");
1480 if (!token)
1481 return -EINVAL;
1482 if (kstrtou32(token, 0, &val32))
1483 return -EINVAL;
1484 pstream.min_phy_rate = cpu_to_le32(val32);
1485
1486 token = strsep(&sptr, " ");
1487 if (!token)
1488 return -EINVAL;
1489 if (kstrtou32(token, 0, &val32))
1490 return -EINVAL;
1491 pstream.sba = cpu_to_le32(val32);
1492
1493 token = strsep(&sptr, " ");
1494 if (!token)
1495 return -EINVAL;
1496 if (kstrtou32(token, 0, &val32))
1497 return -EINVAL;
1498 pstream.medium_time = cpu_to_le32(val32);
1499
1500 pstream.nominal_phy = le32_to_cpu(pstream.min_phy_rate) / 1000000;
1501
1502 ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream);
1503
1504 return count;
1505 }
1506
1507 static const struct file_operations fops_create_qos = {
1508 .write = ath6kl_create_qos_write,
1509 .open = simple_open,
1510 .owner = THIS_MODULE,
1511 .llseek = default_llseek,
1512 };
1513
1514 static ssize_t ath6kl_delete_qos_write(struct file *file,
1515 const char __user *user_buf,
1516 size_t count, loff_t *ppos)
1517 {
1518
1519 struct ath6kl *ar = file->private_data;
1520 struct ath6kl_vif *vif;
1521 char buf[100];
1522 ssize_t len;
1523 char *sptr, *token;
1524 u8 traffic_class;
1525 u8 tsid;
1526
1527 vif = ath6kl_vif_first(ar);
1528 if (!vif)
1529 return -EIO;
1530
1531 len = min(count, sizeof(buf) - 1);
1532 if (copy_from_user(buf, user_buf, len))
1533 return -EFAULT;
1534 buf[len] = '\0';
1535 sptr = buf;
1536
1537 token = strsep(&sptr, " ");
1538 if (!token)
1539 return -EINVAL;
1540 if (kstrtou8(token, 0, &traffic_class))
1541 return -EINVAL;
1542
1543 token = strsep(&sptr, " ");
1544 if (!token)
1545 return -EINVAL;
1546 if (kstrtou8(token, 0, &tsid))
1547 return -EINVAL;
1548
1549 ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx,
1550 traffic_class, tsid);
1551
1552 return count;
1553 }
1554
1555 static const struct file_operations fops_delete_qos = {
1556 .write = ath6kl_delete_qos_write,
1557 .open = simple_open,
1558 .owner = THIS_MODULE,
1559 .llseek = default_llseek,
1560 };
1561
1562 static ssize_t ath6kl_bgscan_int_write(struct file *file,
1563 const char __user *user_buf,
1564 size_t count, loff_t *ppos)
1565 {
1566 struct ath6kl *ar = file->private_data;
1567 u16 bgscan_int;
1568 char buf[32];
1569 ssize_t len;
1570
1571 len = min(count, sizeof(buf) - 1);
1572 if (copy_from_user(buf, user_buf, len))
1573 return -EFAULT;
1574
1575 buf[len] = '\0';
1576 if (kstrtou16(buf, 0, &bgscan_int))
1577 return -EINVAL;
1578
1579 if (bgscan_int == 0)
1580 bgscan_int = 0xffff;
1581
1582 ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3,
1583 0, 0, 0);
1584
1585 return count;
1586 }
1587
1588 static const struct file_operations fops_bgscan_int = {
1589 .write = ath6kl_bgscan_int_write,
1590 .open = simple_open,
1591 .owner = THIS_MODULE,
1592 .llseek = default_llseek,
1593 };
1594
1595 static ssize_t ath6kl_listen_int_write(struct file *file,
1596 const char __user *user_buf,
1597 size_t count, loff_t *ppos)
1598 {
1599 struct ath6kl *ar = file->private_data;
1600 struct ath6kl_vif *vif;
1601 u16 listen_interval;
1602 char buf[32];
1603 ssize_t len;
1604
1605 vif = ath6kl_vif_first(ar);
1606 if (!vif)
1607 return -EIO;
1608
1609 len = min(count, sizeof(buf) - 1);
1610 if (copy_from_user(buf, user_buf, len))
1611 return -EFAULT;
1612
1613 buf[len] = '\0';
1614 if (kstrtou16(buf, 0, &listen_interval))
1615 return -EINVAL;
1616
1617 if ((listen_interval < 15) || (listen_interval > 3000))
1618 return -EINVAL;
1619
1620 vif->listen_intvl_t = listen_interval;
1621 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
1622 vif->listen_intvl_t, 0);
1623
1624 return count;
1625 }
1626
1627 static ssize_t ath6kl_listen_int_read(struct file *file,
1628 char __user *user_buf,
1629 size_t count, loff_t *ppos)
1630 {
1631 struct ath6kl *ar = file->private_data;
1632 struct ath6kl_vif *vif;
1633 char buf[32];
1634 int len;
1635
1636 vif = ath6kl_vif_first(ar);
1637 if (!vif)
1638 return -EIO;
1639
1640 len = scnprintf(buf, sizeof(buf), "%u\n", vif->listen_intvl_t);
1641
1642 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1643 }
1644
1645 static const struct file_operations fops_listen_int = {
1646 .read = ath6kl_listen_int_read,
1647 .write = ath6kl_listen_int_write,
1648 .open = simple_open,
1649 .owner = THIS_MODULE,
1650 .llseek = default_llseek,
1651 };
1652
1653 static ssize_t ath6kl_power_params_write(struct file *file,
1654 const char __user *user_buf,
1655 size_t count, loff_t *ppos)
1656 {
1657 struct ath6kl *ar = file->private_data;
1658 u8 buf[100];
1659 unsigned int len = 0;
1660 char *sptr, *token;
1661 u16 idle_period, ps_poll_num, dtim,
1662 tx_wakeup, num_tx;
1663
1664 len = min(count, sizeof(buf) - 1);
1665 if (copy_from_user(buf, user_buf, len))
1666 return -EFAULT;
1667 buf[len] = '\0';
1668 sptr = buf;
1669
1670 token = strsep(&sptr, " ");
1671 if (!token)
1672 return -EINVAL;
1673 if (kstrtou16(token, 0, &idle_period))
1674 return -EINVAL;
1675
1676 token = strsep(&sptr, " ");
1677 if (!token)
1678 return -EINVAL;
1679 if (kstrtou16(token, 0, &ps_poll_num))
1680 return -EINVAL;
1681
1682 token = strsep(&sptr, " ");
1683 if (!token)
1684 return -EINVAL;
1685 if (kstrtou16(token, 0, &dtim))
1686 return -EINVAL;
1687
1688 token = strsep(&sptr, " ");
1689 if (!token)
1690 return -EINVAL;
1691 if (kstrtou16(token, 0, &tx_wakeup))
1692 return -EINVAL;
1693
1694 token = strsep(&sptr, " ");
1695 if (!token)
1696 return -EINVAL;
1697 if (kstrtou16(token, 0, &num_tx))
1698 return -EINVAL;
1699
1700 ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num,
1701 dtim, tx_wakeup, num_tx, 0);
1702
1703 return count;
1704 }
1705
1706 static const struct file_operations fops_power_params = {
1707 .write = ath6kl_power_params_write,
1708 .open = simple_open,
1709 .owner = THIS_MODULE,
1710 .llseek = default_llseek,
1711 };
1712
1713 void ath6kl_debug_init(struct ath6kl *ar)
1714 {
1715 skb_queue_head_init(&ar->debug.fwlog_queue);
1716 init_completion(&ar->debug.fwlog_completion);
1717
1718 /*
1719 * Actually we are lying here but don't know how to read the mask
1720 * value from the firmware.
1721 */
1722 ar->debug.fwlog_mask = 0;
1723 }
1724
1725 /*
1726 * Initialisation needs to happen in two stages as fwlog events can come
1727 * before cfg80211 is initialised, and debugfs depends on cfg80211
1728 * initialisation.
1729 */
1730 int ath6kl_debug_init_fs(struct ath6kl *ar)
1731 {
1732 ar->debugfs_phy = debugfs_create_dir("ath6kl",
1733 ar->wiphy->debugfsdir);
1734 if (!ar->debugfs_phy)
1735 return -ENOMEM;
1736
1737 debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar,
1738 &fops_tgt_stats);
1739
1740 debugfs_create_file("credit_dist_stats", S_IRUSR, ar->debugfs_phy, ar,
1741 &fops_credit_dist_stats);
1742
1743 debugfs_create_file("endpoint_stats", S_IRUSR | S_IWUSR,
1744 ar->debugfs_phy, ar, &fops_endpoint_stats);
1745
1746 debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar,
1747 &fops_fwlog);
1748
1749 debugfs_create_file("fwlog_block", S_IRUSR, ar->debugfs_phy, ar,
1750 &fops_fwlog_block);
1751
1752 debugfs_create_file("fwlog_mask", S_IRUSR | S_IWUSR, ar->debugfs_phy,
1753 ar, &fops_fwlog_mask);
1754
1755 debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar,
1756 &fops_diag_reg_read);
1757
1758 debugfs_create_file("reg_dump", S_IRUSR, ar->debugfs_phy, ar,
1759 &fops_reg_dump);
1760
1761 debugfs_create_file("lrssi_roam_threshold", S_IRUSR | S_IWUSR,
1762 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold);
1763
1764 debugfs_create_file("reg_write", S_IRUSR | S_IWUSR,
1765 ar->debugfs_phy, ar, &fops_diag_reg_write);
1766
1767 debugfs_create_file("war_stats", S_IRUSR, ar->debugfs_phy, ar,
1768 &fops_war_stats);
1769
1770 debugfs_create_file("roam_table", S_IRUSR, ar->debugfs_phy, ar,
1771 &fops_roam_table);
1772
1773 debugfs_create_file("force_roam", S_IWUSR, ar->debugfs_phy, ar,
1774 &fops_force_roam);
1775
1776 debugfs_create_file("roam_mode", S_IWUSR, ar->debugfs_phy, ar,
1777 &fops_roam_mode);
1778
1779 debugfs_create_file("keepalive", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar,
1780 &fops_keepalive);
1781
1782 debugfs_create_file("disconnect_timeout", S_IRUSR | S_IWUSR,
1783 ar->debugfs_phy, ar, &fops_disconnect_timeout);
1784
1785 debugfs_create_file("create_qos", S_IWUSR, ar->debugfs_phy, ar,
1786 &fops_create_qos);
1787
1788 debugfs_create_file("delete_qos", S_IWUSR, ar->debugfs_phy, ar,
1789 &fops_delete_qos);
1790
1791 debugfs_create_file("bgscan_interval", S_IWUSR,
1792 ar->debugfs_phy, ar, &fops_bgscan_int);
1793
1794 debugfs_create_file("listen_interval", S_IRUSR | S_IWUSR,
1795 ar->debugfs_phy, ar, &fops_listen_int);
1796
1797 debugfs_create_file("power_params", S_IWUSR, ar->debugfs_phy, ar,
1798 &fops_power_params);
1799
1800 return 0;
1801 }
1802
1803 void ath6kl_debug_cleanup(struct ath6kl *ar)
1804 {
1805 skb_queue_purge(&ar->debug.fwlog_queue);
1806 kfree(ar->debug.roam_tbl);
1807 }
1808
1809 #endif
Linux kernel - Deliverables
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