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Linux 4.4.145
[linux/fpc-iii.git] / drivers / net / wireless / ath / ath6kl / debug.c
blobe2b7809d7886706994d1bffa30c5726e1bde6142
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 void ath6kl_printk(const char *level, const char *fmt, ...)
41 {
42 struct va_format vaf;
43 va_list args;
44
45 va_start(args, fmt);
46
47 vaf.fmt = fmt;
48 vaf.va = &args;
49
50 printk("%sath6kl: %pV", level, &vaf);
51
52 va_end(args);
53 }
54 EXPORT_SYMBOL(ath6kl_printk);
55
56 void ath6kl_info(const char *fmt, ...)
57 {
58 struct va_format vaf = {
59 .fmt = fmt,
60 };
61 va_list args;
62
63 va_start(args, fmt);
64 vaf.va = &args;
65 ath6kl_printk(KERN_INFO, "%pV", &vaf);
66 trace_ath6kl_log_info(&vaf);
67 va_end(args);
68 }
69 EXPORT_SYMBOL(ath6kl_info);
70
71 void ath6kl_err(const char *fmt, ...)
72 {
73 struct va_format vaf = {
74 .fmt = fmt,
75 };
76 va_list args;
77
78 va_start(args, fmt);
79 vaf.va = &args;
80 ath6kl_printk(KERN_ERR, "%pV", &vaf);
81 trace_ath6kl_log_err(&vaf);
82 va_end(args);
83 }
84 EXPORT_SYMBOL(ath6kl_err);
85
86 void ath6kl_warn(const char *fmt, ...)
87 {
88 struct va_format vaf = {
89 .fmt = fmt,
90 };
91 va_list args;
92
93 va_start(args, fmt);
94 vaf.va = &args;
95 ath6kl_printk(KERN_WARNING, "%pV", &vaf);
96 trace_ath6kl_log_warn(&vaf);
97 va_end(args);
98 }
99 EXPORT_SYMBOL(ath6kl_warn);
100
101 int ath6kl_read_tgt_stats(struct ath6kl *ar, struct ath6kl_vif *vif)
102 {
103 long left;
104
105 if (down_interruptible(&ar->sem))
106 return -EBUSY;
107
108 set_bit(STATS_UPDATE_PEND, &vif->flags);
109
110 if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) {
111 up(&ar->sem);
112 return -EIO;
113 }
114
115 left = wait_event_interruptible_timeout(ar->event_wq,
116 !test_bit(STATS_UPDATE_PEND,
117 &vif->flags), WMI_TIMEOUT);
118
119 up(&ar->sem);
120
121 if (left <= 0)
122 return -ETIMEDOUT;
123
124 return 0;
125 }
126 EXPORT_SYMBOL(ath6kl_read_tgt_stats);
127
128 #ifdef CONFIG_ATH6KL_DEBUG
129
130 void ath6kl_dbg(enum ATH6K_DEBUG_MASK mask, const char *fmt, ...)
131 {
132 struct va_format vaf;
133 va_list args;
134
135 va_start(args, fmt);
136
137 vaf.fmt = fmt;
138 vaf.va = &args;
139
140 if (debug_mask & mask)
141 ath6kl_printk(KERN_DEBUG, "%pV", &vaf);
142
143 trace_ath6kl_log_dbg(mask, &vaf);
144
145 va_end(args);
146 }
147 EXPORT_SYMBOL(ath6kl_dbg);
148
149 void ath6kl_dbg_dump(enum ATH6K_DEBUG_MASK mask,
150 const char *msg, const char *prefix,
151 const void *buf, size_t len)
152 {
153 if (debug_mask & mask) {
154 if (msg)
155 ath6kl_dbg(mask, "%s\n", msg);
156
157 print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len);
158 }
159
160 /* tracing code doesn't like null strings :/ */
161 trace_ath6kl_log_dbg_dump(msg ? msg : "", prefix ? prefix : "",
162 buf, len);
163 }
164 EXPORT_SYMBOL(ath6kl_dbg_dump);
165
166 #define REG_OUTPUT_LEN_PER_LINE 25
167 #define REGTYPE_STR_LEN 100
168
169 struct ath6kl_diag_reg_info {
170 u32 reg_start;
171 u32 reg_end;
172 const char *reg_info;
173 };
174
175 static const struct ath6kl_diag_reg_info diag_reg[] = {
176 { 0x20000, 0x200fc, "General DMA and Rx registers" },
177 { 0x28000, 0x28900, "MAC PCU register & keycache" },
178 { 0x20800, 0x20a40, "QCU" },
179 { 0x21000, 0x212f0, "DCU" },
180 { 0x4000, 0x42e4, "RTC" },
181 { 0x540000, 0x540000 + (256 * 1024), "RAM" },
182 { 0x29800, 0x2B210, "Base Band" },
183 { 0x1C000, 0x1C748, "Analog" },
184 };
185
186 void ath6kl_dump_registers(struct ath6kl_device *dev,
187 struct ath6kl_irq_proc_registers *irq_proc_reg,
188 struct ath6kl_irq_enable_reg *irq_enable_reg)
189 {
190 ath6kl_dbg(ATH6KL_DBG_IRQ, ("<------- Register Table -------->\n"));
191
192 if (irq_proc_reg != NULL) {
193 ath6kl_dbg(ATH6KL_DBG_IRQ,
194 "Host Int status: 0x%x\n",
195 irq_proc_reg->host_int_status);
196 ath6kl_dbg(ATH6KL_DBG_IRQ,
197 "CPU Int status: 0x%x\n",
198 irq_proc_reg->cpu_int_status);
199 ath6kl_dbg(ATH6KL_DBG_IRQ,
200 "Error Int status: 0x%x\n",
201 irq_proc_reg->error_int_status);
202 ath6kl_dbg(ATH6KL_DBG_IRQ,
203 "Counter Int status: 0x%x\n",
204 irq_proc_reg->counter_int_status);
205 ath6kl_dbg(ATH6KL_DBG_IRQ,
206 "Mbox Frame: 0x%x\n",
207 irq_proc_reg->mbox_frame);
208 ath6kl_dbg(ATH6KL_DBG_IRQ,
209 "Rx Lookahead Valid: 0x%x\n",
210 irq_proc_reg->rx_lkahd_valid);
211 ath6kl_dbg(ATH6KL_DBG_IRQ,
212 "Rx Lookahead 0: 0x%x\n",
213 irq_proc_reg->rx_lkahd[0]);
214 ath6kl_dbg(ATH6KL_DBG_IRQ,
215 "Rx Lookahead 1: 0x%x\n",
216 irq_proc_reg->rx_lkahd[1]);
217
218 if (dev->ar->mbox_info.gmbox_addr != 0) {
219 /*
220 * If the target supports GMBOX hardware, dump some
221 * additional state.
222 */
223 ath6kl_dbg(ATH6KL_DBG_IRQ,
224 "GMBOX Host Int status 2: 0x%x\n",
225 irq_proc_reg->host_int_status2);
226 ath6kl_dbg(ATH6KL_DBG_IRQ,
227 "GMBOX RX Avail: 0x%x\n",
228 irq_proc_reg->gmbox_rx_avail);
229 ath6kl_dbg(ATH6KL_DBG_IRQ,
230 "GMBOX lookahead alias 0: 0x%x\n",
231 irq_proc_reg->rx_gmbox_lkahd_alias[0]);
232 ath6kl_dbg(ATH6KL_DBG_IRQ,
233 "GMBOX lookahead alias 1: 0x%x\n",
234 irq_proc_reg->rx_gmbox_lkahd_alias[1]);
235 }
236 }
237
238 if (irq_enable_reg != NULL) {
239 ath6kl_dbg(ATH6KL_DBG_IRQ,
240 "Int status Enable: 0x%x\n",
241 irq_enable_reg->int_status_en);
242 ath6kl_dbg(ATH6KL_DBG_IRQ, "Counter Int status Enable: 0x%x\n",
243 irq_enable_reg->cntr_int_status_en);
244 }
245 ath6kl_dbg(ATH6KL_DBG_IRQ, "<------------------------------->\n");
246 }
247
248 static void dump_cred_dist(struct htc_endpoint_credit_dist *ep_dist)
249 {
250 ath6kl_dbg(ATH6KL_DBG_CREDIT,
251 "--- endpoint: %d svc_id: 0x%X ---\n",
252 ep_dist->endpoint, ep_dist->svc_id);
253 ath6kl_dbg(ATH6KL_DBG_CREDIT, " dist_flags : 0x%X\n",
254 ep_dist->dist_flags);
255 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_norm : %d\n",
256 ep_dist->cred_norm);
257 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_min : %d\n",
258 ep_dist->cred_min);
259 ath6kl_dbg(ATH6KL_DBG_CREDIT, " credits : %d\n",
260 ep_dist->credits);
261 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_assngd : %d\n",
262 ep_dist->cred_assngd);
263 ath6kl_dbg(ATH6KL_DBG_CREDIT, " seek_cred : %d\n",
264 ep_dist->seek_cred);
265 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_sz : %d\n",
266 ep_dist->cred_sz);
267 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_per_msg : %d\n",
268 ep_dist->cred_per_msg);
269 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_to_dist : %d\n",
270 ep_dist->cred_to_dist);
271 ath6kl_dbg(ATH6KL_DBG_CREDIT, " txq_depth : %d\n",
272 get_queue_depth(&ep_dist->htc_ep->txq));
273 ath6kl_dbg(ATH6KL_DBG_CREDIT,
274 "----------------------------------\n");
275 }
276
277 /* FIXME: move to htc.c */
278 void dump_cred_dist_stats(struct htc_target *target)
279 {
280 struct htc_endpoint_credit_dist *ep_list;
281
282 list_for_each_entry(ep_list, &target->cred_dist_list, list)
283 dump_cred_dist(ep_list);
284
285 ath6kl_dbg(ATH6KL_DBG_CREDIT,
286 "credit distribution total %d free %d\n",
287 target->credit_info->total_avail_credits,
288 target->credit_info->cur_free_credits);
289 }
290
291 void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war)
292 {
293 switch (war) {
294 case ATH6KL_WAR_INVALID_RATE:
295 ar->debug.war_stats.invalid_rate++;
296 break;
297 }
298 }
299
300 static ssize_t read_file_war_stats(struct file *file, char __user *user_buf,
301 size_t count, loff_t *ppos)
302 {
303 struct ath6kl *ar = file->private_data;
304 char *buf;
305 unsigned int len = 0, buf_len = 1500;
306 ssize_t ret_cnt;
307
308 buf = kzalloc(buf_len, GFP_KERNEL);
309 if (!buf)
310 return -ENOMEM;
311
312 len += scnprintf(buf + len, buf_len - len, "\n");
313 len += scnprintf(buf + len, buf_len - len, "%25s\n",
314 "Workaround stats");
315 len += scnprintf(buf + len, buf_len - len, "%25s\n\n",
316 "=================");
317 len += scnprintf(buf + len, buf_len - len, "%20s %10u\n",
318 "Invalid rates", ar->debug.war_stats.invalid_rate);
319
320 if (WARN_ON(len > buf_len))
321 len = buf_len;
322
323 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
324
325 kfree(buf);
326 return ret_cnt;
327 }
328
329 static const struct file_operations fops_war_stats = {
330 .read = read_file_war_stats,
331 .open = simple_open,
332 .owner = THIS_MODULE,
333 .llseek = default_llseek,
334 };
335
336 void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len)
337 {
338 struct ath6kl_fwlog_slot *slot;
339 struct sk_buff *skb;
340 size_t slot_len;
341
342 if (WARN_ON(len > ATH6KL_FWLOG_PAYLOAD_SIZE))
343 return;
344
345 slot_len = sizeof(*slot) + ATH6KL_FWLOG_PAYLOAD_SIZE;
346
347 skb = alloc_skb(slot_len, GFP_KERNEL);
348 if (!skb)
349 return;
350
351 slot = (struct ath6kl_fwlog_slot *) skb_put(skb, slot_len);
352 slot->timestamp = cpu_to_le32(jiffies);
353 slot->length = cpu_to_le32(len);
354 memcpy(slot->payload, buf, len);
355
356 /* Need to pad each record to fixed length ATH6KL_FWLOG_PAYLOAD_SIZE */
357 memset(slot->payload + len, 0, ATH6KL_FWLOG_PAYLOAD_SIZE - len);
358
359 spin_lock(&ar->debug.fwlog_queue.lock);
360
361 __skb_queue_tail(&ar->debug.fwlog_queue, skb);
362 complete(&ar->debug.fwlog_completion);
363
364 /* drop oldest entries */
365 while (skb_queue_len(&ar->debug.fwlog_queue) >
366 ATH6KL_FWLOG_MAX_ENTRIES) {
367 skb = __skb_dequeue(&ar->debug.fwlog_queue);
368 kfree_skb(skb);
369 }
370
371 spin_unlock(&ar->debug.fwlog_queue.lock);
372
373 return;
374 }
375
376 static int ath6kl_fwlog_open(struct inode *inode, struct file *file)
377 {
378 struct ath6kl *ar = inode->i_private;
379
380 if (ar->debug.fwlog_open)
381 return -EBUSY;
382
383 ar->debug.fwlog_open = true;
384
385 file->private_data = inode->i_private;
386 return 0;
387 }
388
389 static int ath6kl_fwlog_release(struct inode *inode, struct file *file)
390 {
391 struct ath6kl *ar = inode->i_private;
392
393 ar->debug.fwlog_open = false;
394
395 return 0;
396 }
397
398 static ssize_t ath6kl_fwlog_read(struct file *file, char __user *user_buf,
399 size_t count, loff_t *ppos)
400 {
401 struct ath6kl *ar = file->private_data;
402 struct sk_buff *skb;
403 ssize_t ret_cnt;
404 size_t len = 0;
405 char *buf;
406
407 buf = vmalloc(count);
408 if (!buf)
409 return -ENOMEM;
410
411 /* read undelivered logs from firmware */
412 ath6kl_read_fwlogs(ar);
413
414 spin_lock(&ar->debug.fwlog_queue.lock);
415
416 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) {
417 if (skb->len > count - len) {
418 /* not enough space, put skb back and leave */
419 __skb_queue_head(&ar->debug.fwlog_queue, skb);
420 break;
421 }
422
423
424 memcpy(buf + len, skb->data, skb->len);
425 len += skb->len;
426
427 kfree_skb(skb);
428 }
429
430 spin_unlock(&ar->debug.fwlog_queue.lock);
431
432 /* FIXME: what to do if len == 0? */
433
434 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
435
436 vfree(buf);
437
438 return ret_cnt;
439 }
440
441 static const struct file_operations fops_fwlog = {
442 .open = ath6kl_fwlog_open,
443 .release = ath6kl_fwlog_release,
444 .read = ath6kl_fwlog_read,
445 .owner = THIS_MODULE,
446 .llseek = default_llseek,
447 };
448
449 static ssize_t ath6kl_fwlog_block_read(struct file *file,
450 char __user *user_buf,
451 size_t count,
452 loff_t *ppos)
453 {
454 struct ath6kl *ar = file->private_data;
455 struct sk_buff *skb;
456 ssize_t ret_cnt;
457 size_t len = 0, not_copied;
458 char *buf;
459 int ret;
460
461 buf = vmalloc(count);
462 if (!buf)
463 return -ENOMEM;
464
465 spin_lock(&ar->debug.fwlog_queue.lock);
466
467 if (skb_queue_len(&ar->debug.fwlog_queue) == 0) {
468 /* we must init under queue lock */
469 init_completion(&ar->debug.fwlog_completion);
470
471 spin_unlock(&ar->debug.fwlog_queue.lock);
472
473 ret = wait_for_completion_interruptible(
474 &ar->debug.fwlog_completion);
475 if (ret == -ERESTARTSYS) {
476 vfree(buf);
477 return ret;
478 }
479
480 spin_lock(&ar->debug.fwlog_queue.lock);
481 }
482
483 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) {
484 if (skb->len > count - len) {
485 /* not enough space, put skb back and leave */
486 __skb_queue_head(&ar->debug.fwlog_queue, skb);
487 break;
488 }
489
490
491 memcpy(buf + len, skb->data, skb->len);
492 len += skb->len;
493
494 kfree_skb(skb);
495 }
496
497 spin_unlock(&ar->debug.fwlog_queue.lock);
498
499 /* FIXME: what to do if len == 0? */
500
501 not_copied = copy_to_user(user_buf, buf, len);
502 if (not_copied != 0) {
503 ret_cnt = -EFAULT;
504 goto out;
505 }
506
507 *ppos = *ppos + len;
508
509 ret_cnt = len;
510
511 out:
512 vfree(buf);
513
514 return ret_cnt;
515 }
516
517 static const struct file_operations fops_fwlog_block = {
518 .open = ath6kl_fwlog_open,
519 .release = ath6kl_fwlog_release,
520 .read = ath6kl_fwlog_block_read,
521 .owner = THIS_MODULE,
522 .llseek = default_llseek,
523 };
524
525 static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf,
526 size_t count, loff_t *ppos)
527 {
528 struct ath6kl *ar = file->private_data;
529 char buf[16];
530 int len;
531
532 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask);
533
534 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
535 }
536
537 static ssize_t ath6kl_fwlog_mask_write(struct file *file,
538 const char __user *user_buf,
539 size_t count, loff_t *ppos)
540 {
541 struct ath6kl *ar = file->private_data;
542 int ret;
543
544 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask);
545 if (ret)
546 return ret;
547
548 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi,
549 ATH6KL_FWLOG_VALID_MASK,
550 ar->debug.fwlog_mask);
551 if (ret)
552 return ret;
553
554 return count;
555 }
556
557 static const struct file_operations fops_fwlog_mask = {
558 .open = simple_open,
559 .read = ath6kl_fwlog_mask_read,
560 .write = ath6kl_fwlog_mask_write,
561 .owner = THIS_MODULE,
562 .llseek = default_llseek,
563 };
564
565 static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf,
566 size_t count, loff_t *ppos)
567 {
568 struct ath6kl *ar = file->private_data;
569 struct ath6kl_vif *vif;
570 struct target_stats *tgt_stats;
571 char *buf;
572 unsigned int len = 0, buf_len = 1500;
573 int i;
574 ssize_t ret_cnt;
575 int rv;
576
577 vif = ath6kl_vif_first(ar);
578 if (!vif)
579 return -EIO;
580
581 buf = kzalloc(buf_len, GFP_KERNEL);
582 if (!buf)
583 return -ENOMEM;
584
585 rv = ath6kl_read_tgt_stats(ar, vif);
586 if (rv < 0) {
587 kfree(buf);
588 return rv;
589 }
590
591 tgt_stats = &vif->target_stats;
592
593 len += scnprintf(buf + len, buf_len - len, "\n");
594 len += scnprintf(buf + len, buf_len - len, "%25s\n",
595 "Target Tx stats");
596 len += scnprintf(buf + len, buf_len - len, "%25s\n\n",
597 "=================");
598 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
599 "Ucast packets", tgt_stats->tx_ucast_pkt);
600 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
601 "Bcast packets", tgt_stats->tx_bcast_pkt);
602 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
603 "Ucast byte", tgt_stats->tx_ucast_byte);
604 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
605 "Bcast byte", tgt_stats->tx_bcast_byte);
606 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
607 "Rts success cnt", tgt_stats->tx_rts_success_cnt);
608 for (i = 0; i < 4; i++)
609 len += scnprintf(buf + len, buf_len - len,
610 "%18s %d %10llu\n", "PER on ac",
611 i, tgt_stats->tx_pkt_per_ac[i]);
612 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
613 "Error", tgt_stats->tx_err);
614 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
615 "Fail count", tgt_stats->tx_fail_cnt);
616 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
617 "Retry count", tgt_stats->tx_retry_cnt);
618 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
619 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt);
620 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
621 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt);
622 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n",
623 "TKIP counter measure used",
624 tgt_stats->tkip_cnter_measures_invoked);
625
626 len += scnprintf(buf + len, buf_len - len, "%25s\n",
627 "Target Rx stats");
628 len += scnprintf(buf + len, buf_len - len, "%25s\n",
629 "=================");
630
631 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
632 "Ucast packets", tgt_stats->rx_ucast_pkt);
633 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
634 "Ucast Rate", tgt_stats->rx_ucast_rate);
635 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
636 "Bcast packets", tgt_stats->rx_bcast_pkt);
637 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
638 "Ucast byte", tgt_stats->rx_ucast_byte);
639 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
640 "Bcast byte", tgt_stats->rx_bcast_byte);
641 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
642 "Fragmented pkt", tgt_stats->rx_frgment_pkt);
643 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
644 "Error", tgt_stats->rx_err);
645 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
646 "CRC Err", tgt_stats->rx_crc_err);
647 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
648 "Key chache miss", tgt_stats->rx_key_cache_miss);
649 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
650 "Decrypt Err", tgt_stats->rx_decrypt_err);
651 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
652 "Duplicate frame", tgt_stats->rx_dupl_frame);
653 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
654 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail);
655 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
656 "TKIP format err", tgt_stats->tkip_fmt_err);
657 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
658 "CCMP format Err", tgt_stats->ccmp_fmt_err);
659 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n",
660 "CCMP Replay Err", tgt_stats->ccmp_replays);
661
662 len += scnprintf(buf + len, buf_len - len, "%25s\n",
663 "Misc Target stats");
664 len += scnprintf(buf + len, buf_len - len, "%25s\n",
665 "=================");
666 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
667 "Beacon Miss count", tgt_stats->cs_bmiss_cnt);
668 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
669 "Num Connects", tgt_stats->cs_connect_cnt);
670 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
671 "Num disconnects", tgt_stats->cs_discon_cnt);
672 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
673 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi);
674 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
675 "ARP pkt received", tgt_stats->arp_received);
676 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
677 "ARP pkt matched", tgt_stats->arp_matched);
678 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
679 "ARP pkt replied", tgt_stats->arp_replied);
680
681 if (len > buf_len)
682 len = buf_len;
683
684 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
685
686 kfree(buf);
687 return ret_cnt;
688 }
689
690 static const struct file_operations fops_tgt_stats = {
691 .read = read_file_tgt_stats,
692 .open = simple_open,
693 .owner = THIS_MODULE,
694 .llseek = default_llseek,
695 };
696
697 #define print_credit_info(fmt_str, ep_list_field) \
698 (len += scnprintf(buf + len, buf_len - len, fmt_str, \
699 ep_list->ep_list_field))
700 #define CREDIT_INFO_DISPLAY_STRING_LEN 200
701 #define CREDIT_INFO_LEN 128
702
703 static ssize_t read_file_credit_dist_stats(struct file *file,
704 char __user *user_buf,
705 size_t count, loff_t *ppos)
706 {
707 struct ath6kl *ar = file->private_data;
708 struct htc_target *target = ar->htc_target;
709 struct htc_endpoint_credit_dist *ep_list;
710 char *buf;
711 unsigned int buf_len, len = 0;
712 ssize_t ret_cnt;
713
714 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN +
715 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN;
716 buf = kzalloc(buf_len, GFP_KERNEL);
717 if (!buf)
718 return -ENOMEM;
719
720 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n",
721 "Total Avail Credits: ",
722 target->credit_info->total_avail_credits);
723 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n",
724 "Free credits :",
725 target->credit_info->cur_free_credits);
726
727 len += scnprintf(buf + len, buf_len - len,
728 " Epid Flags Cred_norm Cred_min Credits Cred_assngd"
729 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist"
730 " qdepth\n");
731
732 list_for_each_entry(ep_list, &target->cred_dist_list, list) {
733 print_credit_info(" %2d", endpoint);
734 print_credit_info("%10x", dist_flags);
735 print_credit_info("%8d", cred_norm);
736 print_credit_info("%9d", cred_min);
737 print_credit_info("%9d", credits);
738 print_credit_info("%10d", cred_assngd);
739 print_credit_info("%13d", seek_cred);
740 print_credit_info("%12d", cred_sz);
741 print_credit_info("%9d", cred_per_msg);
742 print_credit_info("%14d", cred_to_dist);
743 len += scnprintf(buf + len, buf_len - len, "%12d\n",
744 get_queue_depth(&ep_list->htc_ep->txq));
745 }
746
747 if (len > buf_len)
748 len = buf_len;
749
750 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
751 kfree(buf);
752 return ret_cnt;
753 }
754
755 static const struct file_operations fops_credit_dist_stats = {
756 .read = read_file_credit_dist_stats,
757 .open = simple_open,
758 .owner = THIS_MODULE,
759 .llseek = default_llseek,
760 };
761
762 static unsigned int print_endpoint_stat(struct htc_target *target, char *buf,
763 unsigned int buf_len, unsigned int len,
764 int offset, const char *name)
765 {
766 int i;
767 struct htc_endpoint_stats *ep_st;
768 u32 *counter;
769
770 len += scnprintf(buf + len, buf_len - len, "%s:", name);
771 for (i = 0; i < ENDPOINT_MAX; i++) {
772 ep_st = &target->endpoint[i].ep_st;
773 counter = ((u32 *) ep_st) + (offset / 4);
774 len += scnprintf(buf + len, buf_len - len, " %u", *counter);
775 }
776 len += scnprintf(buf + len, buf_len - len, "\n");
777
778 return len;
779 }
780
781 static ssize_t ath6kl_endpoint_stats_read(struct file *file,
782 char __user *user_buf,
783 size_t count, loff_t *ppos)
784 {
785 struct ath6kl *ar = file->private_data;
786 struct htc_target *target = ar->htc_target;
787 char *buf;
788 unsigned int buf_len, len = 0;
789 ssize_t ret_cnt;
790
791 buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) *
792 (25 + ENDPOINT_MAX * 11);
793 buf = kmalloc(buf_len, GFP_KERNEL);
794 if (!buf)
795 return -ENOMEM;
796
797 #define EPSTAT(name) \
798 do { \
799 len = print_endpoint_stat(target, buf, buf_len, len, \
800 offsetof(struct htc_endpoint_stats, \
801 name), \
802 #name); \
803 } while (0)
804
805 EPSTAT(cred_low_indicate);
806 EPSTAT(tx_issued);
807 EPSTAT(tx_pkt_bundled);
808 EPSTAT(tx_bundles);
809 EPSTAT(tx_dropped);
810 EPSTAT(tx_cred_rpt);
811 EPSTAT(cred_rpt_from_rx);
812 EPSTAT(cred_rpt_from_other);
813 EPSTAT(cred_rpt_ep0);
814 EPSTAT(cred_from_rx);
815 EPSTAT(cred_from_other);
816 EPSTAT(cred_from_ep0);
817 EPSTAT(cred_cosumd);
818 EPSTAT(cred_retnd);
819 EPSTAT(rx_pkts);
820 EPSTAT(rx_lkahds);
821 EPSTAT(rx_bundl);
822 EPSTAT(rx_bundle_lkahd);
823 EPSTAT(rx_bundle_from_hdr);
824 EPSTAT(rx_alloc_thresh_hit);
825 EPSTAT(rxalloc_thresh_byte);
826 #undef EPSTAT
827
828 if (len > buf_len)
829 len = buf_len;
830
831 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
832 kfree(buf);
833 return ret_cnt;
834 }
835
836 static ssize_t ath6kl_endpoint_stats_write(struct file *file,
837 const char __user *user_buf,
838 size_t count, loff_t *ppos)
839 {
840 struct ath6kl *ar = file->private_data;
841 struct htc_target *target = ar->htc_target;
842 int ret, i;
843 u32 val;
844 struct htc_endpoint_stats *ep_st;
845
846 ret = kstrtou32_from_user(user_buf, count, 0, &val);
847 if (ret)
848 return ret;
849 if (val == 0) {
850 for (i = 0; i < ENDPOINT_MAX; i++) {
851 ep_st = &target->endpoint[i].ep_st;
852 memset(ep_st, 0, sizeof(*ep_st));
853 }
854 }
855
856 return count;
857 }
858
859 static const struct file_operations fops_endpoint_stats = {
860 .open = simple_open,
861 .read = ath6kl_endpoint_stats_read,
862 .write = ath6kl_endpoint_stats_write,
863 .owner = THIS_MODULE,
864 .llseek = default_llseek,
865 };
866
867 static unsigned long ath6kl_get_num_reg(void)
868 {
869 int i;
870 unsigned long n_reg = 0;
871
872 for (i = 0; i < ARRAY_SIZE(diag_reg); i++)
873 n_reg = n_reg +
874 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1;
875
876 return n_reg;
877 }
878
879 static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr)
880 {
881 int i;
882
883 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) {
884 if (reg_addr >= diag_reg[i].reg_start &&
885 reg_addr <= diag_reg[i].reg_end)
886 return true;
887 }
888
889 return false;
890 }
891
892 static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf,
893 size_t count, loff_t *ppos)
894 {
895 struct ath6kl *ar = file->private_data;
896 u8 buf[50];
897 unsigned int len = 0;
898
899 if (ar->debug.dbgfs_diag_reg)
900 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n",
901 ar->debug.dbgfs_diag_reg);
902 else
903 len += scnprintf(buf + len, sizeof(buf) - len,
904 "All diag registers\n");
905
906 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
907 }
908
909 static ssize_t ath6kl_regread_write(struct file *file,
910 const char __user *user_buf,
911 size_t count, loff_t *ppos)
912 {
913 struct ath6kl *ar = file->private_data;
914 unsigned long reg_addr;
915
916 if (kstrtoul_from_user(user_buf, count, 0, &reg_addr))
917 return -EINVAL;
918
919 if ((reg_addr % 4) != 0)
920 return -EINVAL;
921
922 if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr))
923 return -EINVAL;
924
925 ar->debug.dbgfs_diag_reg = reg_addr;
926
927 return count;
928 }
929
930 static const struct file_operations fops_diag_reg_read = {
931 .read = ath6kl_regread_read,
932 .write = ath6kl_regread_write,
933 .open = simple_open,
934 .owner = THIS_MODULE,
935 .llseek = default_llseek,
936 };
937
938 static int ath6kl_regdump_open(struct inode *inode, struct file *file)
939 {
940 struct ath6kl *ar = inode->i_private;
941 u8 *buf;
942 unsigned long int reg_len;
943 unsigned int len = 0, n_reg;
944 u32 addr;
945 __le32 reg_val;
946 int i, status;
947
948 /* Dump all the registers if no register is specified */
949 if (!ar->debug.dbgfs_diag_reg)
950 n_reg = ath6kl_get_num_reg();
951 else
952 n_reg = 1;
953
954 reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE;
955 if (n_reg > 1)
956 reg_len += REGTYPE_STR_LEN;
957
958 buf = vmalloc(reg_len);
959 if (!buf)
960 return -ENOMEM;
961
962 if (n_reg == 1) {
963 addr = ar->debug.dbgfs_diag_reg;
964
965 status = ath6kl_diag_read32(ar,
966 TARG_VTOP(ar->target_type, addr),
967 (u32 *)&reg_val);
968 if (status)
969 goto fail_reg_read;
970
971 len += scnprintf(buf + len, reg_len - len,
972 "0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val));
973 goto done;
974 }
975
976 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) {
977 len += scnprintf(buf + len, reg_len - len,
978 "%s\n", diag_reg[i].reg_info);
979 for (addr = diag_reg[i].reg_start;
980 addr <= diag_reg[i].reg_end; addr += 4) {
981 status = ath6kl_diag_read32(ar,
982 TARG_VTOP(ar->target_type, addr),
983 (u32 *)&reg_val);
984 if (status)
985 goto fail_reg_read;
986
987 len += scnprintf(buf + len, reg_len - len,
988 "0x%06x 0x%08x\n",
989 addr, le32_to_cpu(reg_val));
990 }
991 }
992
993 done:
994 file->private_data = buf;
995 return 0;
996
997 fail_reg_read:
998 ath6kl_warn("Unable to read memory:%u\n", addr);
999 vfree(buf);
1000 return -EIO;
1001 }
1002
1003 static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf,
1004 size_t count, loff_t *ppos)
1005 {
1006 u8 *buf = file->private_data;
1007 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
1008 }
1009
1010 static int ath6kl_regdump_release(struct inode *inode, struct file *file)
1011 {
1012 vfree(file->private_data);
1013 return 0;
1014 }
1015
1016 static const struct file_operations fops_reg_dump = {
1017 .open = ath6kl_regdump_open,
1018 .read = ath6kl_regdump_read,
1019 .release = ath6kl_regdump_release,
1020 .owner = THIS_MODULE,
1021 .llseek = default_llseek,
1022 };
1023
1024 static ssize_t ath6kl_lrssi_roam_write(struct file *file,
1025 const char __user *user_buf,
1026 size_t count, loff_t *ppos)
1027 {
1028 struct ath6kl *ar = file->private_data;
1029 unsigned long lrssi_roam_threshold;
1030
1031 if (kstrtoul_from_user(user_buf, count, 0, &lrssi_roam_threshold))
1032 return -EINVAL;
1033
1034 ar->lrssi_roam_threshold = lrssi_roam_threshold;
1035
1036 ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold);
1037
1038 return count;
1039 }
1040
1041 static ssize_t ath6kl_lrssi_roam_read(struct file *file,
1042 char __user *user_buf,
1043 size_t count, loff_t *ppos)
1044 {
1045 struct ath6kl *ar = file->private_data;
1046 char buf[32];
1047 unsigned int len;
1048
1049 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold);
1050
1051 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1052 }
1053
1054 static const struct file_operations fops_lrssi_roam_threshold = {
1055 .read = ath6kl_lrssi_roam_read,
1056 .write = ath6kl_lrssi_roam_write,
1057 .open = simple_open,
1058 .owner = THIS_MODULE,
1059 .llseek = default_llseek,
1060 };
1061
1062 static ssize_t ath6kl_regwrite_read(struct file *file,
1063 char __user *user_buf,
1064 size_t count, loff_t *ppos)
1065 {
1066 struct ath6kl *ar = file->private_data;
1067 u8 buf[32];
1068 unsigned int len = 0;
1069
1070 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n",
1071 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr);
1072
1073 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1074 }
1075
1076 static ssize_t ath6kl_regwrite_write(struct file *file,
1077 const char __user *user_buf,
1078 size_t count, loff_t *ppos)
1079 {
1080 struct ath6kl *ar = file->private_data;
1081 char buf[32];
1082 char *sptr, *token;
1083 unsigned int len = 0;
1084 u32 reg_addr, reg_val;
1085
1086 len = min(count, sizeof(buf) - 1);
1087 if (copy_from_user(buf, user_buf, len))
1088 return -EFAULT;
1089
1090 buf[len] = '\0';
1091 sptr = buf;
1092
1093 token = strsep(&sptr, "=");
1094 if (!token)
1095 return -EINVAL;
1096
1097 if (kstrtou32(token, 0, &reg_addr))
1098 return -EINVAL;
1099
1100 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr))
1101 return -EINVAL;
1102
1103 if (kstrtou32(sptr, 0, &reg_val))
1104 return -EINVAL;
1105
1106 ar->debug.diag_reg_addr_wr = reg_addr;
1107 ar->debug.diag_reg_val_wr = reg_val;
1108
1109 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr,
1110 cpu_to_le32(ar->debug.diag_reg_val_wr)))
1111 return -EIO;
1112
1113 return count;
1114 }
1115
1116 static const struct file_operations fops_diag_reg_write = {
1117 .read = ath6kl_regwrite_read,
1118 .write = ath6kl_regwrite_write,
1119 .open = simple_open,
1120 .owner = THIS_MODULE,
1121 .llseek = default_llseek,
1122 };
1123
1124 int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf,
1125 size_t len)
1126 {
1127 const struct wmi_target_roam_tbl *tbl;
1128 u16 num_entries;
1129
1130 if (len < sizeof(*tbl))
1131 return -EINVAL;
1132
1133 tbl = (const struct wmi_target_roam_tbl *) buf;
1134 num_entries = le16_to_cpu(tbl->num_entries);
1135 if (sizeof(*tbl) + num_entries * sizeof(struct wmi_bss_roam_info) >
1136 len)
1137 return -EINVAL;
1138
1139 if (ar->debug.roam_tbl == NULL ||
1140 ar->debug.roam_tbl_len < (unsigned int) len) {
1141 kfree(ar->debug.roam_tbl);
1142 ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC);
1143 if (ar->debug.roam_tbl == NULL)
1144 return -ENOMEM;
1145 }
1146
1147 memcpy(ar->debug.roam_tbl, buf, len);
1148 ar->debug.roam_tbl_len = len;
1149
1150 if (test_bit(ROAM_TBL_PEND, &ar->flag)) {
1151 clear_bit(ROAM_TBL_PEND, &ar->flag);
1152 wake_up(&ar->event_wq);
1153 }
1154
1155 return 0;
1156 }
1157
1158 static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf,
1159 size_t count, loff_t *ppos)
1160 {
1161 struct ath6kl *ar = file->private_data;
1162 int ret;
1163 long left;
1164 struct wmi_target_roam_tbl *tbl;
1165 u16 num_entries, i;
1166 char *buf;
1167 unsigned int len, buf_len;
1168 ssize_t ret_cnt;
1169
1170 if (down_interruptible(&ar->sem))
1171 return -EBUSY;
1172
1173 set_bit(ROAM_TBL_PEND, &ar->flag);
1174
1175 ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi);
1176 if (ret) {
1177 up(&ar->sem);
1178 return ret;
1179 }
1180
1181 left = wait_event_interruptible_timeout(
1182 ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT);
1183 up(&ar->sem);
1184
1185 if (left <= 0)
1186 return -ETIMEDOUT;
1187
1188 if (ar->debug.roam_tbl == NULL)
1189 return -ENOMEM;
1190
1191 tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl;
1192 num_entries = le16_to_cpu(tbl->num_entries);
1193
1194 buf_len = 100 + num_entries * 100;
1195 buf = kzalloc(buf_len, GFP_KERNEL);
1196 if (buf == NULL)
1197 return -ENOMEM;
1198 len = 0;
1199 len += scnprintf(buf + len, buf_len - len,
1200 "roam_mode=%u\n\n"
1201 "# roam_util bssid rssi rssidt last_rssi util bias\n",
1202 le16_to_cpu(tbl->roam_mode));
1203
1204 for (i = 0; i < num_entries; i++) {
1205 struct wmi_bss_roam_info *info = &tbl->info[i];
1206 len += scnprintf(buf + len, buf_len - len,
1207 "%d %pM %d %d %d %d %d\n",
1208 a_sle32_to_cpu(info->roam_util), info->bssid,
1209 info->rssi, info->rssidt, info->last_rssi,
1210 info->util, info->bias);
1211 }
1212
1213 if (len > buf_len)
1214 len = buf_len;
1215
1216 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1217
1218 kfree(buf);
1219 return ret_cnt;
1220 }
1221
1222 static const struct file_operations fops_roam_table = {
1223 .read = ath6kl_roam_table_read,
1224 .open = simple_open,
1225 .owner = THIS_MODULE,
1226 .llseek = default_llseek,
1227 };
1228
1229 static ssize_t ath6kl_force_roam_write(struct file *file,
1230 const char __user *user_buf,
1231 size_t count, loff_t *ppos)
1232 {
1233 struct ath6kl *ar = file->private_data;
1234 int ret;
1235 char buf[20];
1236 size_t len;
1237 u8 bssid[ETH_ALEN];
1238
1239 len = min(count, sizeof(buf) - 1);
1240 if (copy_from_user(buf, user_buf, len))
1241 return -EFAULT;
1242 buf[len] = '\0';
1243
1244 if (!mac_pton(buf, bssid))
1245 return -EINVAL;
1246
1247 ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid);
1248 if (ret)
1249 return ret;
1250
1251 return count;
1252 }
1253
1254 static const struct file_operations fops_force_roam = {
1255 .write = ath6kl_force_roam_write,
1256 .open = simple_open,
1257 .owner = THIS_MODULE,
1258 .llseek = default_llseek,
1259 };
1260
1261 static ssize_t ath6kl_roam_mode_write(struct file *file,
1262 const char __user *user_buf,
1263 size_t count, loff_t *ppos)
1264 {
1265 struct ath6kl *ar = file->private_data;
1266 int ret;
1267 char buf[20];
1268 size_t len;
1269 enum wmi_roam_mode mode;
1270
1271 len = min(count, sizeof(buf) - 1);
1272 if (copy_from_user(buf, user_buf, len))
1273 return -EFAULT;
1274 buf[len] = '\0';
1275 if (len > 0 && buf[len - 1] == '\n')
1276 buf[len - 1] = '\0';
1277
1278 if (strcasecmp(buf, "default") == 0)
1279 mode = WMI_DEFAULT_ROAM_MODE;
1280 else if (strcasecmp(buf, "bssbias") == 0)
1281 mode = WMI_HOST_BIAS_ROAM_MODE;
1282 else if (strcasecmp(buf, "lock") == 0)
1283 mode = WMI_LOCK_BSS_MODE;
1284 else
1285 return -EINVAL;
1286
1287 ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode);
1288 if (ret)
1289 return ret;
1290
1291 return count;
1292 }
1293
1294 static const struct file_operations fops_roam_mode = {
1295 .write = ath6kl_roam_mode_write,
1296 .open = simple_open,
1297 .owner = THIS_MODULE,
1298 .llseek = default_llseek,
1299 };
1300
1301 void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive)
1302 {
1303 ar->debug.keepalive = keepalive;
1304 }
1305
1306 static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf,
1307 size_t count, loff_t *ppos)
1308 {
1309 struct ath6kl *ar = file->private_data;
1310 char buf[16];
1311 int len;
1312
1313 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive);
1314
1315 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1316 }
1317
1318 static ssize_t ath6kl_keepalive_write(struct file *file,
1319 const char __user *user_buf,
1320 size_t count, loff_t *ppos)
1321 {
1322 struct ath6kl *ar = file->private_data;
1323 int ret;
1324 u8 val;
1325
1326 ret = kstrtou8_from_user(user_buf, count, 0, &val);
1327 if (ret)
1328 return ret;
1329
1330 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val);
1331 if (ret)
1332 return ret;
1333
1334 return count;
1335 }
1336
1337 static const struct file_operations fops_keepalive = {
1338 .open = simple_open,
1339 .read = ath6kl_keepalive_read,
1340 .write = ath6kl_keepalive_write,
1341 .owner = THIS_MODULE,
1342 .llseek = default_llseek,
1343 };
1344
1345 void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout)
1346 {
1347 ar->debug.disc_timeout = timeout;
1348 }
1349
1350 static ssize_t ath6kl_disconnect_timeout_read(struct file *file,
1351 char __user *user_buf,
1352 size_t count, loff_t *ppos)
1353 {
1354 struct ath6kl *ar = file->private_data;
1355 char buf[16];
1356 int len;
1357
1358 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.disc_timeout);
1359
1360 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1361 }
1362
1363 static ssize_t ath6kl_disconnect_timeout_write(struct file *file,
1364 const char __user *user_buf,
1365 size_t count, loff_t *ppos)
1366 {
1367 struct ath6kl *ar = file->private_data;
1368 int ret;
1369 u8 val;
1370
1371 ret = kstrtou8_from_user(user_buf, count, 0, &val);
1372 if (ret)
1373 return ret;
1374
1375 ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, 0, val);
1376 if (ret)
1377 return ret;
1378
1379 return count;
1380 }
1381
1382 static const struct file_operations fops_disconnect_timeout = {
1383 .open = simple_open,
1384 .read = ath6kl_disconnect_timeout_read,
1385 .write = ath6kl_disconnect_timeout_write,
1386 .owner = THIS_MODULE,
1387 .llseek = default_llseek,
1388 };
1389
1390 static ssize_t ath6kl_create_qos_write(struct file *file,
1391 const char __user *user_buf,
1392 size_t count, loff_t *ppos)
1393 {
1394 struct ath6kl *ar = file->private_data;
1395 struct ath6kl_vif *vif;
1396 char buf[200];
1397 ssize_t len;
1398 char *sptr, *token;
1399 struct wmi_create_pstream_cmd pstream;
1400 u32 val32;
1401 u16 val16;
1402
1403 vif = ath6kl_vif_first(ar);
1404 if (!vif)
1405 return -EIO;
1406
1407 len = min(count, sizeof(buf) - 1);
1408 if (copy_from_user(buf, user_buf, len))
1409 return -EFAULT;
1410 buf[len] = '\0';
1411 sptr = buf;
1412
1413 token = strsep(&sptr, " ");
1414 if (!token)
1415 return -EINVAL;
1416 if (kstrtou8(token, 0, &pstream.user_pri))
1417 return -EINVAL;
1418
1419 token = strsep(&sptr, " ");
1420 if (!token)
1421 return -EINVAL;
1422 if (kstrtou8(token, 0, &pstream.traffic_direc))
1423 return -EINVAL;
1424
1425 token = strsep(&sptr, " ");
1426 if (!token)
1427 return -EINVAL;
1428 if (kstrtou8(token, 0, &pstream.traffic_class))
1429 return -EINVAL;
1430
1431 token = strsep(&sptr, " ");
1432 if (!token)
1433 return -EINVAL;
1434 if (kstrtou8(token, 0, &pstream.traffic_type))
1435 return -EINVAL;
1436
1437 token = strsep(&sptr, " ");
1438 if (!token)
1439 return -EINVAL;
1440 if (kstrtou8(token, 0, &pstream.voice_psc_cap))
1441 return -EINVAL;
1442
1443 token = strsep(&sptr, " ");
1444 if (!token)
1445 return -EINVAL;
1446 if (kstrtou32(token, 0, &val32))
1447 return -EINVAL;
1448 pstream.min_service_int = cpu_to_le32(val32);
1449
1450 token = strsep(&sptr, " ");
1451 if (!token)
1452 return -EINVAL;
1453 if (kstrtou32(token, 0, &val32))
1454 return -EINVAL;
1455 pstream.max_service_int = cpu_to_le32(val32);
1456
1457 token = strsep(&sptr, " ");
1458 if (!token)
1459 return -EINVAL;
1460 if (kstrtou32(token, 0, &val32))
1461 return -EINVAL;
1462 pstream.inactivity_int = cpu_to_le32(val32);
1463
1464 token = strsep(&sptr, " ");
1465 if (!token)
1466 return -EINVAL;
1467 if (kstrtou32(token, 0, &val32))
1468 return -EINVAL;
1469 pstream.suspension_int = cpu_to_le32(val32);
1470
1471 token = strsep(&sptr, " ");
1472 if (!token)
1473 return -EINVAL;
1474 if (kstrtou32(token, 0, &val32))
1475 return -EINVAL;
1476 pstream.service_start_time = cpu_to_le32(val32);
1477
1478 token = strsep(&sptr, " ");
1479 if (!token)
1480 return -EINVAL;
1481 if (kstrtou8(token, 0, &pstream.tsid))
1482 return -EINVAL;
1483
1484 token = strsep(&sptr, " ");
1485 if (!token)
1486 return -EINVAL;
1487 if (kstrtou16(token, 0, &val16))
1488 return -EINVAL;
1489 pstream.nominal_msdu = cpu_to_le16(val16);
1490
1491 token = strsep(&sptr, " ");
1492 if (!token)
1493 return -EINVAL;
1494 if (kstrtou16(token, 0, &val16))
1495 return -EINVAL;
1496 pstream.max_msdu = cpu_to_le16(val16);
1497
1498 token = strsep(&sptr, " ");
1499 if (!token)
1500 return -EINVAL;
1501 if (kstrtou32(token, 0, &val32))
1502 return -EINVAL;
1503 pstream.min_data_rate = cpu_to_le32(val32);
1504
1505 token = strsep(&sptr, " ");
1506 if (!token)
1507 return -EINVAL;
1508 if (kstrtou32(token, 0, &val32))
1509 return -EINVAL;
1510 pstream.mean_data_rate = cpu_to_le32(val32);
1511
1512 token = strsep(&sptr, " ");
1513 if (!token)
1514 return -EINVAL;
1515 if (kstrtou32(token, 0, &val32))
1516 return -EINVAL;
1517 pstream.peak_data_rate = cpu_to_le32(val32);
1518
1519 token = strsep(&sptr, " ");
1520 if (!token)
1521 return -EINVAL;
1522 if (kstrtou32(token, 0, &val32))
1523 return -EINVAL;
1524 pstream.max_burst_size = cpu_to_le32(val32);
1525
1526 token = strsep(&sptr, " ");
1527 if (!token)
1528 return -EINVAL;
1529 if (kstrtou32(token, 0, &val32))
1530 return -EINVAL;
1531 pstream.delay_bound = cpu_to_le32(val32);
1532
1533 token = strsep(&sptr, " ");
1534 if (!token)
1535 return -EINVAL;
1536 if (kstrtou32(token, 0, &val32))
1537 return -EINVAL;
1538 pstream.min_phy_rate = cpu_to_le32(val32);
1539
1540 token = strsep(&sptr, " ");
1541 if (!token)
1542 return -EINVAL;
1543 if (kstrtou32(token, 0, &val32))
1544 return -EINVAL;
1545 pstream.sba = cpu_to_le32(val32);
1546
1547 token = strsep(&sptr, " ");
1548 if (!token)
1549 return -EINVAL;
1550 if (kstrtou32(token, 0, &val32))
1551 return -EINVAL;
1552 pstream.medium_time = cpu_to_le32(val32);
1553
1554 pstream.nominal_phy = le32_to_cpu(pstream.min_phy_rate) / 1000000;
1555
1556 ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream);
1557
1558 return count;
1559 }
1560
1561 static const struct file_operations fops_create_qos = {
1562 .write = ath6kl_create_qos_write,
1563 .open = simple_open,
1564 .owner = THIS_MODULE,
1565 .llseek = default_llseek,
1566 };
1567
1568 static ssize_t ath6kl_delete_qos_write(struct file *file,
1569 const char __user *user_buf,
1570 size_t count, loff_t *ppos)
1571 {
1572 struct ath6kl *ar = file->private_data;
1573 struct ath6kl_vif *vif;
1574 char buf[100];
1575 ssize_t len;
1576 char *sptr, *token;
1577 u8 traffic_class;
1578 u8 tsid;
1579
1580 vif = ath6kl_vif_first(ar);
1581 if (!vif)
1582 return -EIO;
1583
1584 len = min(count, sizeof(buf) - 1);
1585 if (copy_from_user(buf, user_buf, len))
1586 return -EFAULT;
1587 buf[len] = '\0';
1588 sptr = buf;
1589
1590 token = strsep(&sptr, " ");
1591 if (!token)
1592 return -EINVAL;
1593 if (kstrtou8(token, 0, &traffic_class))
1594 return -EINVAL;
1595
1596 token = strsep(&sptr, " ");
1597 if (!token)
1598 return -EINVAL;
1599 if (kstrtou8(token, 0, &tsid))
1600 return -EINVAL;
1601
1602 ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx,
1603 traffic_class, tsid);
1604
1605 return count;
1606 }
1607
1608 static const struct file_operations fops_delete_qos = {
1609 .write = ath6kl_delete_qos_write,
1610 .open = simple_open,
1611 .owner = THIS_MODULE,
1612 .llseek = default_llseek,
1613 };
1614
1615 static ssize_t ath6kl_bgscan_int_write(struct file *file,
1616 const char __user *user_buf,
1617 size_t count, loff_t *ppos)
1618 {
1619 struct ath6kl *ar = file->private_data;
1620 struct ath6kl_vif *vif;
1621 u16 bgscan_int;
1622 char buf[32];
1623 ssize_t len;
1624
1625 vif = ath6kl_vif_first(ar);
1626 if (!vif)
1627 return -EIO;
1628
1629 len = min(count, sizeof(buf) - 1);
1630 if (copy_from_user(buf, user_buf, len))
1631 return -EFAULT;
1632
1633 buf[len] = '\0';
1634 if (kstrtou16(buf, 0, &bgscan_int))
1635 return -EINVAL;
1636
1637 if (bgscan_int == 0)
1638 bgscan_int = 0xffff;
1639
1640 vif->bg_scan_period = bgscan_int;
1641
1642 ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3,
1643 0, 0, 0);
1644
1645 return count;
1646 }
1647
1648 static const struct file_operations fops_bgscan_int = {
1649 .write = ath6kl_bgscan_int_write,
1650 .open = simple_open,
1651 .owner = THIS_MODULE,
1652 .llseek = default_llseek,
1653 };
1654
1655 static ssize_t ath6kl_listen_int_write(struct file *file,
1656 const char __user *user_buf,
1657 size_t count, loff_t *ppos)
1658 {
1659 struct ath6kl *ar = file->private_data;
1660 struct ath6kl_vif *vif;
1661 u16 listen_interval;
1662 char buf[32];
1663 ssize_t len;
1664
1665 vif = ath6kl_vif_first(ar);
1666 if (!vif)
1667 return -EIO;
1668
1669 len = min(count, sizeof(buf) - 1);
1670 if (copy_from_user(buf, user_buf, len))
1671 return -EFAULT;
1672
1673 buf[len] = '\0';
1674 if (kstrtou16(buf, 0, &listen_interval))
1675 return -EINVAL;
1676
1677 if ((listen_interval < 15) || (listen_interval > 3000))
1678 return -EINVAL;
1679
1680 vif->listen_intvl_t = listen_interval;
1681 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
1682 vif->listen_intvl_t, 0);
1683
1684 return count;
1685 }
1686
1687 static ssize_t ath6kl_listen_int_read(struct file *file,
1688 char __user *user_buf,
1689 size_t count, loff_t *ppos)
1690 {
1691 struct ath6kl *ar = file->private_data;
1692 struct ath6kl_vif *vif;
1693 char buf[32];
1694 int len;
1695
1696 vif = ath6kl_vif_first(ar);
1697 if (!vif)
1698 return -EIO;
1699
1700 len = scnprintf(buf, sizeof(buf), "%u\n", vif->listen_intvl_t);
1701
1702 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1703 }
1704
1705 static const struct file_operations fops_listen_int = {
1706 .read = ath6kl_listen_int_read,
1707 .write = ath6kl_listen_int_write,
1708 .open = simple_open,
1709 .owner = THIS_MODULE,
1710 .llseek = default_llseek,
1711 };
1712
1713 static ssize_t ath6kl_power_params_write(struct file *file,
1714 const char __user *user_buf,
1715 size_t count, loff_t *ppos)
1716 {
1717 struct ath6kl *ar = file->private_data;
1718 u8 buf[100];
1719 unsigned int len = 0;
1720 char *sptr, *token;
1721 u16 idle_period, ps_poll_num, dtim,
1722 tx_wakeup, num_tx;
1723
1724 len = min(count, sizeof(buf) - 1);
1725 if (copy_from_user(buf, user_buf, len))
1726 return -EFAULT;
1727 buf[len] = '\0';
1728 sptr = buf;
1729
1730 token = strsep(&sptr, " ");
1731 if (!token)
1732 return -EINVAL;
1733 if (kstrtou16(token, 0, &idle_period))
1734 return -EINVAL;
1735
1736 token = strsep(&sptr, " ");
1737 if (!token)
1738 return -EINVAL;
1739 if (kstrtou16(token, 0, &ps_poll_num))
1740 return -EINVAL;
1741
1742 token = strsep(&sptr, " ");
1743 if (!token)
1744 return -EINVAL;
1745 if (kstrtou16(token, 0, &dtim))
1746 return -EINVAL;
1747
1748 token = strsep(&sptr, " ");
1749 if (!token)
1750 return -EINVAL;
1751 if (kstrtou16(token, 0, &tx_wakeup))
1752 return -EINVAL;
1753
1754 token = strsep(&sptr, " ");
1755 if (!token)
1756 return -EINVAL;
1757 if (kstrtou16(token, 0, &num_tx))
1758 return -EINVAL;
1759
1760 ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num,
1761 dtim, tx_wakeup, num_tx, 0);
1762
1763 return count;
1764 }
1765
1766 static const struct file_operations fops_power_params = {
1767 .write = ath6kl_power_params_write,
1768 .open = simple_open,
1769 .owner = THIS_MODULE,
1770 .llseek = default_llseek,
1771 };
1772
1773 void ath6kl_debug_init(struct ath6kl *ar)
1774 {
1775 skb_queue_head_init(&ar->debug.fwlog_queue);
1776 init_completion(&ar->debug.fwlog_completion);
1777
1778 /*
1779 * Actually we are lying here but don't know how to read the mask
1780 * value from the firmware.
1781 */
1782 ar->debug.fwlog_mask = 0;
1783 }
1784
1785 /*
1786 * Initialisation needs to happen in two stages as fwlog events can come
1787 * before cfg80211 is initialised, and debugfs depends on cfg80211
1788 * initialisation.
1789 */
1790 int ath6kl_debug_init_fs(struct ath6kl *ar)
1791 {
1792 ar->debugfs_phy = debugfs_create_dir("ath6kl",
1793 ar->wiphy->debugfsdir);
1794 if (!ar->debugfs_phy)
1795 return -ENOMEM;
1796
1797 debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar,
1798 &fops_tgt_stats);
1799
1800 if (ar->hif_type == ATH6KL_HIF_TYPE_SDIO)
1801 debugfs_create_file("credit_dist_stats", S_IRUSR,
1802 ar->debugfs_phy, ar,
1803 &fops_credit_dist_stats);
1804
1805 debugfs_create_file("endpoint_stats", S_IRUSR | S_IWUSR,
1806 ar->debugfs_phy, ar, &fops_endpoint_stats);
1807
1808 debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar,
1809 &fops_fwlog);
1810
1811 debugfs_create_file("fwlog_block", S_IRUSR, ar->debugfs_phy, ar,
1812 &fops_fwlog_block);
1813
1814 debugfs_create_file("fwlog_mask", S_IRUSR | S_IWUSR, ar->debugfs_phy,
1815 ar, &fops_fwlog_mask);
1816
1817 debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar,
1818 &fops_diag_reg_read);
1819
1820 debugfs_create_file("reg_dump", S_IRUSR, ar->debugfs_phy, ar,
1821 &fops_reg_dump);
1822
1823 debugfs_create_file("lrssi_roam_threshold", S_IRUSR | S_IWUSR,
1824 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold);
1825
1826 debugfs_create_file("reg_write", S_IRUSR | S_IWUSR,
1827 ar->debugfs_phy, ar, &fops_diag_reg_write);
1828
1829 debugfs_create_file("war_stats", S_IRUSR, ar->debugfs_phy, ar,
1830 &fops_war_stats);
1831
1832 debugfs_create_file("roam_table", S_IRUSR, ar->debugfs_phy, ar,
1833 &fops_roam_table);
1834
1835 debugfs_create_file("force_roam", S_IWUSR, ar->debugfs_phy, ar,
1836 &fops_force_roam);
1837
1838 debugfs_create_file("roam_mode", S_IWUSR, ar->debugfs_phy, ar,
1839 &fops_roam_mode);
1840
1841 debugfs_create_file("keepalive", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar,
1842 &fops_keepalive);
1843
1844 debugfs_create_file("disconnect_timeout", S_IRUSR | S_IWUSR,
1845 ar->debugfs_phy, ar, &fops_disconnect_timeout);
1846
1847 debugfs_create_file("create_qos", S_IWUSR, ar->debugfs_phy, ar,
1848 &fops_create_qos);
1849
1850 debugfs_create_file("delete_qos", S_IWUSR, ar->debugfs_phy, ar,
1851 &fops_delete_qos);
1852
1853 debugfs_create_file("bgscan_interval", S_IWUSR,
1854 ar->debugfs_phy, ar, &fops_bgscan_int);
1855
1856 debugfs_create_file("listen_interval", S_IRUSR | S_IWUSR,
1857 ar->debugfs_phy, ar, &fops_listen_int);
1858
1859 debugfs_create_file("power_params", S_IWUSR, ar->debugfs_phy, ar,
1860 &fops_power_params);
1861
1862 return 0;
1863 }
1864
1865 void ath6kl_debug_cleanup(struct ath6kl *ar)
1866 {
1867 skb_queue_purge(&ar->debug.fwlog_queue);
1868 complete(&ar->debug.fwlog_completion);
1869 kfree(ar->debug.roam_tbl);
1870 }
1871
1872 #endif
Linux with added FPC-III support