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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
28struct 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
40int 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}
57EXPORT_SYMBOL(ath6kl_printk);
58
59#ifdef CONFIG_ATH6KL_DEBUG
60
61void 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}
78EXPORT_SYMBOL(ath6kl_dbg);
79
80void 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}
91EXPORT_SYMBOL(ath6kl_dbg_dump);
92
93#define REG_OUTPUT_LEN_PER_LINE 25
94#define REGTYPE_STR_LEN 100
95
96struct ath6kl_diag_reg_info {
97 u32 reg_start;
98 u32 reg_end;
99 const char *reg_info;
100};
101
102static 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
113void 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
177static 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 */
207void 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
220void 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
229static 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
258static 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
265void 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
305static 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
318static 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
327static 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
370static 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
378static 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 vfree(buf);
406 return ret;
407 }
408
409 spin_lock(&ar->debug.fwlog_queue.lock);
410 }
411
412 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) {
413 if (skb->len > count - len) {
414 /* not enough space, put skb back and leave */
415 __skb_queue_head(&ar->debug.fwlog_queue, skb);
416 break;
417 }
418
419
420 memcpy(buf + len, skb->data, skb->len);
421 len += skb->len;
422
423 kfree_skb(skb);
424 }
425
426 spin_unlock(&ar->debug.fwlog_queue.lock);
427
428 /* FIXME: what to do if len == 0? */
429
430 not_copied = copy_to_user(user_buf, buf, len);
431 if (not_copied != 0) {
432 ret_cnt = -EFAULT;
433 goto out;
434 }
435
436 *ppos = *ppos + len;
437
438 ret_cnt = len;
439
440out:
441 vfree(buf);
442
443 return ret_cnt;
444}
445
446static const struct file_operations fops_fwlog_block = {
447 .open = ath6kl_fwlog_open,
448 .release = ath6kl_fwlog_release,
449 .read = ath6kl_fwlog_block_read,
450 .owner = THIS_MODULE,
451 .llseek = default_llseek,
452};
453
454static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf,
455 size_t count, loff_t *ppos)
456{
457 struct ath6kl *ar = file->private_data;
458 char buf[16];
459 int len;
460
461 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask);
462
463 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
464}
465
466static ssize_t ath6kl_fwlog_mask_write(struct file *file,
467 const char __user *user_buf,
468 size_t count, loff_t *ppos)
469{
470 struct ath6kl *ar = file->private_data;
471 int ret;
472
473 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask);
474 if (ret)
475 return ret;
476
477 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi,
478 ATH6KL_FWLOG_VALID_MASK,
479 ar->debug.fwlog_mask);
480 if (ret)
481 return ret;
482
483 return count;
484}
485
486static const struct file_operations fops_fwlog_mask = {
487 .open = simple_open,
488 .read = ath6kl_fwlog_mask_read,
489 .write = ath6kl_fwlog_mask_write,
490 .owner = THIS_MODULE,
491 .llseek = default_llseek,
492};
493
494static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf,
495 size_t count, loff_t *ppos)
496{
497 struct ath6kl *ar = file->private_data;
498 struct ath6kl_vif *vif;
499 struct target_stats *tgt_stats;
500 char *buf;
501 unsigned int len = 0, buf_len = 1500;
502 int i;
503 long left;
504 ssize_t ret_cnt;
505
506 vif = ath6kl_vif_first(ar);
507 if (!vif)
508 return -EIO;
509
510 tgt_stats = &vif->target_stats;
511
512 buf = kzalloc(buf_len, GFP_KERNEL);
513 if (!buf)
514 return -ENOMEM;
515
516 if (down_interruptible(&ar->sem)) {
517 kfree(buf);
518 return -EBUSY;
519 }
520
521 set_bit(STATS_UPDATE_PEND, &vif->flags);
522
523 if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) {
524 up(&ar->sem);
525 kfree(buf);
526 return -EIO;
527 }
528
529 left = wait_event_interruptible_timeout(ar->event_wq,
530 !test_bit(STATS_UPDATE_PEND,
531 &vif->flags), WMI_TIMEOUT);
532
533 up(&ar->sem);
534
535 if (left <= 0) {
536 kfree(buf);
537 return -ETIMEDOUT;
538 }
539
540 len += scnprintf(buf + len, buf_len - len, "\n");
541 len += scnprintf(buf + len, buf_len - len, "%25s\n",
542 "Target Tx stats");
543 len += scnprintf(buf + len, buf_len - len, "%25s\n\n",
544 "=================");
545 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
546 "Ucast packets", tgt_stats->tx_ucast_pkt);
547 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
548 "Bcast packets", tgt_stats->tx_bcast_pkt);
549 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
550 "Ucast byte", tgt_stats->tx_ucast_byte);
551 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
552 "Bcast byte", tgt_stats->tx_bcast_byte);
553 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
554 "Rts success cnt", tgt_stats->tx_rts_success_cnt);
555 for (i = 0; i < 4; i++)
556 len += scnprintf(buf + len, buf_len - len,
557 "%18s %d %10llu\n", "PER on ac",
558 i, tgt_stats->tx_pkt_per_ac[i]);
559 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
560 "Error", tgt_stats->tx_err);
561 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
562 "Fail count", tgt_stats->tx_fail_cnt);
563 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
564 "Retry count", tgt_stats->tx_retry_cnt);
565 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
566 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt);
567 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
568 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt);
569 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n",
570 "TKIP counter measure used",
571 tgt_stats->tkip_cnter_measures_invoked);
572
573 len += scnprintf(buf + len, buf_len - len, "%25s\n",
574 "Target Rx stats");
575 len += scnprintf(buf + len, buf_len - len, "%25s\n",
576 "=================");
577
578 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
579 "Ucast packets", tgt_stats->rx_ucast_pkt);
580 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
581 "Ucast Rate", tgt_stats->rx_ucast_rate);
582 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
583 "Bcast packets", tgt_stats->rx_bcast_pkt);
584 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
585 "Ucast byte", tgt_stats->rx_ucast_byte);
586 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
587 "Bcast byte", tgt_stats->rx_bcast_byte);
588 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
589 "Fragmented pkt", tgt_stats->rx_frgment_pkt);
590 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
591 "Error", tgt_stats->rx_err);
592 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
593 "CRC Err", tgt_stats->rx_crc_err);
594 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
595 "Key chache miss", tgt_stats->rx_key_cache_miss);
596 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
597 "Decrypt Err", tgt_stats->rx_decrypt_err);
598 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
599 "Duplicate frame", tgt_stats->rx_dupl_frame);
600 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
601 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail);
602 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
603 "TKIP format err", tgt_stats->tkip_fmt_err);
604 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
605 "CCMP format Err", tgt_stats->ccmp_fmt_err);
606 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n",
607 "CCMP Replay Err", tgt_stats->ccmp_replays);
608
609 len += scnprintf(buf + len, buf_len - len, "%25s\n",
610 "Misc Target stats");
611 len += scnprintf(buf + len, buf_len - len, "%25s\n",
612 "=================");
613 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
614 "Beacon Miss count", tgt_stats->cs_bmiss_cnt);
615 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
616 "Num Connects", tgt_stats->cs_connect_cnt);
617 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
618 "Num disconnects", tgt_stats->cs_discon_cnt);
619 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
620 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi);
621 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
622 "ARP pkt received", tgt_stats->arp_received);
623 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
624 "ARP pkt matched", tgt_stats->arp_matched);
625 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
626 "ARP pkt replied", tgt_stats->arp_replied);
627
628 if (len > buf_len)
629 len = buf_len;
630
631 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
632
633 kfree(buf);
634 return ret_cnt;
635}
636
637static const struct file_operations fops_tgt_stats = {
638 .read = read_file_tgt_stats,
639 .open = simple_open,
640 .owner = THIS_MODULE,
641 .llseek = default_llseek,
642};
643
644#define print_credit_info(fmt_str, ep_list_field) \
645 (len += scnprintf(buf + len, buf_len - len, fmt_str, \
646 ep_list->ep_list_field))
647#define CREDIT_INFO_DISPLAY_STRING_LEN 200
648#define CREDIT_INFO_LEN 128
649
650static ssize_t read_file_credit_dist_stats(struct file *file,
651 char __user *user_buf,
652 size_t count, loff_t *ppos)
653{
654 struct ath6kl *ar = file->private_data;
655 struct htc_target *target = ar->htc_target;
656 struct htc_endpoint_credit_dist *ep_list;
657 char *buf;
658 unsigned int buf_len, len = 0;
659 ssize_t ret_cnt;
660
661 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN +
662 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN;
663 buf = kzalloc(buf_len, GFP_KERNEL);
664 if (!buf)
665 return -ENOMEM;
666
667 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n",
668 "Total Avail Credits: ",
669 target->credit_info->total_avail_credits);
670 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n",
671 "Free credits :",
672 target->credit_info->cur_free_credits);
673
674 len += scnprintf(buf + len, buf_len - len,
675 " Epid Flags Cred_norm Cred_min Credits Cred_assngd"
676 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist"
677 " qdepth\n");
678
679 list_for_each_entry(ep_list, &target->cred_dist_list, list) {
680 print_credit_info(" %2d", endpoint);
681 print_credit_info("%10x", dist_flags);
682 print_credit_info("%8d", cred_norm);
683 print_credit_info("%9d", cred_min);
684 print_credit_info("%9d", credits);
685 print_credit_info("%10d", cred_assngd);
686 print_credit_info("%13d", seek_cred);
687 print_credit_info("%12d", cred_sz);
688 print_credit_info("%9d", cred_per_msg);
689 print_credit_info("%14d", cred_to_dist);
690 len += scnprintf(buf + len, buf_len - len, "%12d\n",
691 get_queue_depth(&ep_list->htc_ep->txq));
692 }
693
694 if (len > buf_len)
695 len = buf_len;
696
697 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
698 kfree(buf);
699 return ret_cnt;
700}
701
702static const struct file_operations fops_credit_dist_stats = {
703 .read = read_file_credit_dist_stats,
704 .open = simple_open,
705 .owner = THIS_MODULE,
706 .llseek = default_llseek,
707};
708
709static unsigned int print_endpoint_stat(struct htc_target *target, char *buf,
710 unsigned int buf_len, unsigned int len,
711 int offset, const char *name)
712{
713 int i;
714 struct htc_endpoint_stats *ep_st;
715 u32 *counter;
716
717 len += scnprintf(buf + len, buf_len - len, "%s:", name);
718 for (i = 0; i < ENDPOINT_MAX; i++) {
719 ep_st = &target->endpoint[i].ep_st;
720 counter = ((u32 *) ep_st) + (offset / 4);
721 len += scnprintf(buf + len, buf_len - len, " %u", *counter);
722 }
723 len += scnprintf(buf + len, buf_len - len, "\n");
724
725 return len;
726}
727
728static ssize_t ath6kl_endpoint_stats_read(struct file *file,
729 char __user *user_buf,
730 size_t count, loff_t *ppos)
731{
732 struct ath6kl *ar = file->private_data;
733 struct htc_target *target = ar->htc_target;
734 char *buf;
735 unsigned int buf_len, len = 0;
736 ssize_t ret_cnt;
737
738 buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) *
739 (25 + ENDPOINT_MAX * 11);
740 buf = kmalloc(buf_len, GFP_KERNEL);
741 if (!buf)
742 return -ENOMEM;
743
744#define EPSTAT(name) \
745 do { \
746 len = print_endpoint_stat(target, buf, buf_len, len, \
747 offsetof(struct htc_endpoint_stats, \
748 name), \
749 #name); \
750 } while (0)
751
752 EPSTAT(cred_low_indicate);
753 EPSTAT(tx_issued);
754 EPSTAT(tx_pkt_bundled);
755 EPSTAT(tx_bundles);
756 EPSTAT(tx_dropped);
757 EPSTAT(tx_cred_rpt);
758 EPSTAT(cred_rpt_from_rx);
759 EPSTAT(cred_rpt_from_other);
760 EPSTAT(cred_rpt_ep0);
761 EPSTAT(cred_from_rx);
762 EPSTAT(cred_from_other);
763 EPSTAT(cred_from_ep0);
764 EPSTAT(cred_cosumd);
765 EPSTAT(cred_retnd);
766 EPSTAT(rx_pkts);
767 EPSTAT(rx_lkahds);
768 EPSTAT(rx_bundl);
769 EPSTAT(rx_bundle_lkahd);
770 EPSTAT(rx_bundle_from_hdr);
771 EPSTAT(rx_alloc_thresh_hit);
772 EPSTAT(rxalloc_thresh_byte);
773#undef EPSTAT
774
775 if (len > buf_len)
776 len = buf_len;
777
778 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
779 kfree(buf);
780 return ret_cnt;
781}
782
783static ssize_t ath6kl_endpoint_stats_write(struct file *file,
784 const char __user *user_buf,
785 size_t count, loff_t *ppos)
786{
787 struct ath6kl *ar = file->private_data;
788 struct htc_target *target = ar->htc_target;
789 int ret, i;
790 u32 val;
791 struct htc_endpoint_stats *ep_st;
792
793 ret = kstrtou32_from_user(user_buf, count, 0, &val);
794 if (ret)
795 return ret;
796 if (val == 0) {
797 for (i = 0; i < ENDPOINT_MAX; i++) {
798 ep_st = &target->endpoint[i].ep_st;
799 memset(ep_st, 0, sizeof(*ep_st));
800 }
801 }
802
803 return count;
804}
805
806static const struct file_operations fops_endpoint_stats = {
807 .open = simple_open,
808 .read = ath6kl_endpoint_stats_read,
809 .write = ath6kl_endpoint_stats_write,
810 .owner = THIS_MODULE,
811 .llseek = default_llseek,
812};
813
814static unsigned long ath6kl_get_num_reg(void)
815{
816 int i;
817 unsigned long n_reg = 0;
818
819 for (i = 0; i < ARRAY_SIZE(diag_reg); i++)
820 n_reg = n_reg +
821 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1;
822
823 return n_reg;
824}
825
826static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr)
827{
828 int i;
829
830 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) {
831 if (reg_addr >= diag_reg[i].reg_start &&
832 reg_addr <= diag_reg[i].reg_end)
833 return true;
834 }
835
836 return false;
837}
838
839static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf,
840 size_t count, loff_t *ppos)
841{
842 struct ath6kl *ar = file->private_data;
843 u8 buf[50];
844 unsigned int len = 0;
845
846 if (ar->debug.dbgfs_diag_reg)
847 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n",
848 ar->debug.dbgfs_diag_reg);
849 else
850 len += scnprintf(buf + len, sizeof(buf) - len,
851 "All diag registers\n");
852
853 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
854}
855
856static ssize_t ath6kl_regread_write(struct file *file,
857 const char __user *user_buf,
858 size_t count, loff_t *ppos)
859{
860 struct ath6kl *ar = file->private_data;
861 unsigned long reg_addr;
862
863 if (kstrtoul_from_user(user_buf, count, 0, ®_addr))
864 return -EINVAL;
865
866 if ((reg_addr % 4) != 0)
867 return -EINVAL;
868
869 if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr))
870 return -EINVAL;
871
872 ar->debug.dbgfs_diag_reg = reg_addr;
873
874 return count;
875}
876
877static const struct file_operations fops_diag_reg_read = {
878 .read = ath6kl_regread_read,
879 .write = ath6kl_regread_write,
880 .open = simple_open,
881 .owner = THIS_MODULE,
882 .llseek = default_llseek,
883};
884
885static int ath6kl_regdump_open(struct inode *inode, struct file *file)
886{
887 struct ath6kl *ar = inode->i_private;
888 u8 *buf;
889 unsigned long int reg_len;
890 unsigned int len = 0, n_reg;
891 u32 addr;
892 __le32 reg_val;
893 int i, status;
894
895 /* Dump all the registers if no register is specified */
896 if (!ar->debug.dbgfs_diag_reg)
897 n_reg = ath6kl_get_num_reg();
898 else
899 n_reg = 1;
900
901 reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE;
902 if (n_reg > 1)
903 reg_len += REGTYPE_STR_LEN;
904
905 buf = vmalloc(reg_len);
906 if (!buf)
907 return -ENOMEM;
908
909 if (n_reg == 1) {
910 addr = ar->debug.dbgfs_diag_reg;
911
912 status = ath6kl_diag_read32(ar,
913 TARG_VTOP(ar->target_type, addr),
914 (u32 *)®_val);
915 if (status)
916 goto fail_reg_read;
917
918 len += scnprintf(buf + len, reg_len - len,
919 "0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val));
920 goto done;
921 }
922
923 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) {
924 len += scnprintf(buf + len, reg_len - len,
925 "%s\n", diag_reg[i].reg_info);
926 for (addr = diag_reg[i].reg_start;
927 addr <= diag_reg[i].reg_end; addr += 4) {
928 status = ath6kl_diag_read32(ar,
929 TARG_VTOP(ar->target_type, addr),
930 (u32 *)®_val);
931 if (status)
932 goto fail_reg_read;
933
934 len += scnprintf(buf + len, reg_len - len,
935 "0x%06x 0x%08x\n",
936 addr, le32_to_cpu(reg_val));
937 }
938 }
939
940done:
941 file->private_data = buf;
942 return 0;
943
944fail_reg_read:
945 ath6kl_warn("Unable to read memory:%u\n", addr);
946 vfree(buf);
947 return -EIO;
948}
949
950static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf,
951 size_t count, loff_t *ppos)
952{
953 u8 *buf = file->private_data;
954 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
955}
956
957static int ath6kl_regdump_release(struct inode *inode, struct file *file)
958{
959 vfree(file->private_data);
960 return 0;
961}
962
963static const struct file_operations fops_reg_dump = {
964 .open = ath6kl_regdump_open,
965 .read = ath6kl_regdump_read,
966 .release = ath6kl_regdump_release,
967 .owner = THIS_MODULE,
968 .llseek = default_llseek,
969};
970
971static ssize_t ath6kl_lrssi_roam_write(struct file *file,
972 const char __user *user_buf,
973 size_t count, loff_t *ppos)
974{
975 struct ath6kl *ar = file->private_data;
976 unsigned long lrssi_roam_threshold;
977
978 if (kstrtoul_from_user(user_buf, count, 0, &lrssi_roam_threshold))
979 return -EINVAL;
980
981 ar->lrssi_roam_threshold = lrssi_roam_threshold;
982
983 ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold);
984
985 return count;
986}
987
988static ssize_t ath6kl_lrssi_roam_read(struct file *file,
989 char __user *user_buf,
990 size_t count, loff_t *ppos)
991{
992 struct ath6kl *ar = file->private_data;
993 char buf[32];
994 unsigned int len;
995
996 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold);
997
998 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
999}
1000
1001static const struct file_operations fops_lrssi_roam_threshold = {
1002 .read = ath6kl_lrssi_roam_read,
1003 .write = ath6kl_lrssi_roam_write,
1004 .open = simple_open,
1005 .owner = THIS_MODULE,
1006 .llseek = default_llseek,
1007};
1008
1009static ssize_t ath6kl_regwrite_read(struct file *file,
1010 char __user *user_buf,
1011 size_t count, loff_t *ppos)
1012{
1013 struct ath6kl *ar = file->private_data;
1014 u8 buf[32];
1015 unsigned int len = 0;
1016
1017 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n",
1018 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr);
1019
1020 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1021}
1022
1023static ssize_t ath6kl_regwrite_write(struct file *file,
1024 const char __user *user_buf,
1025 size_t count, loff_t *ppos)
1026{
1027 struct ath6kl *ar = file->private_data;
1028 char buf[32];
1029 char *sptr, *token;
1030 unsigned int len = 0;
1031 u32 reg_addr, reg_val;
1032
1033 len = min(count, sizeof(buf) - 1);
1034 if (copy_from_user(buf, user_buf, len))
1035 return -EFAULT;
1036
1037 buf[len] = '\0';
1038 sptr = buf;
1039
1040 token = strsep(&sptr, "=");
1041 if (!token)
1042 return -EINVAL;
1043
1044 if (kstrtou32(token, 0, ®_addr))
1045 return -EINVAL;
1046
1047 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr))
1048 return -EINVAL;
1049
1050 if (kstrtou32(sptr, 0, ®_val))
1051 return -EINVAL;
1052
1053 ar->debug.diag_reg_addr_wr = reg_addr;
1054 ar->debug.diag_reg_val_wr = reg_val;
1055
1056 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr,
1057 cpu_to_le32(ar->debug.diag_reg_val_wr)))
1058 return -EIO;
1059
1060 return count;
1061}
1062
1063static const struct file_operations fops_diag_reg_write = {
1064 .read = ath6kl_regwrite_read,
1065 .write = ath6kl_regwrite_write,
1066 .open = simple_open,
1067 .owner = THIS_MODULE,
1068 .llseek = default_llseek,
1069};
1070
1071int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf,
1072 size_t len)
1073{
1074 const struct wmi_target_roam_tbl *tbl;
1075 u16 num_entries;
1076
1077 if (len < sizeof(*tbl))
1078 return -EINVAL;
1079
1080 tbl = (const struct wmi_target_roam_tbl *) buf;
1081 num_entries = le16_to_cpu(tbl->num_entries);
1082 if (sizeof(*tbl) + num_entries * sizeof(struct wmi_bss_roam_info) >
1083 len)
1084 return -EINVAL;
1085
1086 if (ar->debug.roam_tbl == NULL ||
1087 ar->debug.roam_tbl_len < (unsigned int) len) {
1088 kfree(ar->debug.roam_tbl);
1089 ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC);
1090 if (ar->debug.roam_tbl == NULL)
1091 return -ENOMEM;
1092 }
1093
1094 memcpy(ar->debug.roam_tbl, buf, len);
1095 ar->debug.roam_tbl_len = len;
1096
1097 if (test_bit(ROAM_TBL_PEND, &ar->flag)) {
1098 clear_bit(ROAM_TBL_PEND, &ar->flag);
1099 wake_up(&ar->event_wq);
1100 }
1101
1102 return 0;
1103}
1104
1105static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf,
1106 size_t count, loff_t *ppos)
1107{
1108 struct ath6kl *ar = file->private_data;
1109 int ret;
1110 long left;
1111 struct wmi_target_roam_tbl *tbl;
1112 u16 num_entries, i;
1113 char *buf;
1114 unsigned int len, buf_len;
1115 ssize_t ret_cnt;
1116
1117 if (down_interruptible(&ar->sem))
1118 return -EBUSY;
1119
1120 set_bit(ROAM_TBL_PEND, &ar->flag);
1121
1122 ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi);
1123 if (ret) {
1124 up(&ar->sem);
1125 return ret;
1126 }
1127
1128 left = wait_event_interruptible_timeout(
1129 ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT);
1130 up(&ar->sem);
1131
1132 if (left <= 0)
1133 return -ETIMEDOUT;
1134
1135 if (ar->debug.roam_tbl == NULL)
1136 return -ENOMEM;
1137
1138 tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl;
1139 num_entries = le16_to_cpu(tbl->num_entries);
1140
1141 buf_len = 100 + num_entries * 100;
1142 buf = kzalloc(buf_len, GFP_KERNEL);
1143 if (buf == NULL)
1144 return -ENOMEM;
1145 len = 0;
1146 len += scnprintf(buf + len, buf_len - len,
1147 "roam_mode=%u\n\n"
1148 "# roam_util bssid rssi rssidt last_rssi util bias\n",
1149 le16_to_cpu(tbl->roam_mode));
1150
1151 for (i = 0; i < num_entries; i++) {
1152 struct wmi_bss_roam_info *info = &tbl->info[i];
1153 len += scnprintf(buf + len, buf_len - len,
1154 "%d %pM %d %d %d %d %d\n",
1155 a_sle32_to_cpu(info->roam_util), info->bssid,
1156 info->rssi, info->rssidt, info->last_rssi,
1157 info->util, info->bias);
1158 }
1159
1160 if (len > buf_len)
1161 len = buf_len;
1162
1163 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1164
1165 kfree(buf);
1166 return ret_cnt;
1167}
1168
1169static const struct file_operations fops_roam_table = {
1170 .read = ath6kl_roam_table_read,
1171 .open = simple_open,
1172 .owner = THIS_MODULE,
1173 .llseek = default_llseek,
1174};
1175
1176static ssize_t ath6kl_force_roam_write(struct file *file,
1177 const char __user *user_buf,
1178 size_t count, loff_t *ppos)
1179{
1180 struct ath6kl *ar = file->private_data;
1181 int ret;
1182 char buf[20];
1183 size_t len;
1184 u8 bssid[ETH_ALEN];
1185 int i;
1186 int addr[ETH_ALEN];
1187
1188 len = min(count, sizeof(buf) - 1);
1189 if (copy_from_user(buf, user_buf, len))
1190 return -EFAULT;
1191 buf[len] = '\0';
1192
1193 if (sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x",
1194 &addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5])
1195 != ETH_ALEN)
1196 return -EINVAL;
1197 for (i = 0; i < ETH_ALEN; i++)
1198 bssid[i] = addr[i];
1199
1200 ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid);
1201 if (ret)
1202 return ret;
1203
1204 return count;
1205}
1206
1207static const struct file_operations fops_force_roam = {
1208 .write = ath6kl_force_roam_write,
1209 .open = simple_open,
1210 .owner = THIS_MODULE,
1211 .llseek = default_llseek,
1212};
1213
1214static ssize_t ath6kl_roam_mode_write(struct file *file,
1215 const char __user *user_buf,
1216 size_t count, loff_t *ppos)
1217{
1218 struct ath6kl *ar = file->private_data;
1219 int ret;
1220 char buf[20];
1221 size_t len;
1222 enum wmi_roam_mode mode;
1223
1224 len = min(count, sizeof(buf) - 1);
1225 if (copy_from_user(buf, user_buf, len))
1226 return -EFAULT;
1227 buf[len] = '\0';
1228 if (len > 0 && buf[len - 1] == '\n')
1229 buf[len - 1] = '\0';
1230
1231 if (strcasecmp(buf, "default") == 0)
1232 mode = WMI_DEFAULT_ROAM_MODE;
1233 else if (strcasecmp(buf, "bssbias") == 0)
1234 mode = WMI_HOST_BIAS_ROAM_MODE;
1235 else if (strcasecmp(buf, "lock") == 0)
1236 mode = WMI_LOCK_BSS_MODE;
1237 else
1238 return -EINVAL;
1239
1240 ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode);
1241 if (ret)
1242 return ret;
1243
1244 return count;
1245}
1246
1247static const struct file_operations fops_roam_mode = {
1248 .write = ath6kl_roam_mode_write,
1249 .open = simple_open,
1250 .owner = THIS_MODULE,
1251 .llseek = default_llseek,
1252};
1253
1254void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive)
1255{
1256 ar->debug.keepalive = keepalive;
1257}
1258
1259static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf,
1260 size_t count, loff_t *ppos)
1261{
1262 struct ath6kl *ar = file->private_data;
1263 char buf[16];
1264 int len;
1265
1266 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive);
1267
1268 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1269}
1270
1271static ssize_t ath6kl_keepalive_write(struct file *file,
1272 const char __user *user_buf,
1273 size_t count, loff_t *ppos)
1274{
1275 struct ath6kl *ar = file->private_data;
1276 int ret;
1277 u8 val;
1278
1279 ret = kstrtou8_from_user(user_buf, count, 0, &val);
1280 if (ret)
1281 return ret;
1282
1283 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val);
1284 if (ret)
1285 return ret;
1286
1287 return count;
1288}
1289
1290static const struct file_operations fops_keepalive = {
1291 .open = simple_open,
1292 .read = ath6kl_keepalive_read,
1293 .write = ath6kl_keepalive_write,
1294 .owner = THIS_MODULE,
1295 .llseek = default_llseek,
1296};
1297
1298void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout)
1299{
1300 ar->debug.disc_timeout = timeout;
1301}
1302
1303static ssize_t ath6kl_disconnect_timeout_read(struct file *file,
1304 char __user *user_buf,
1305 size_t count, loff_t *ppos)
1306{
1307 struct ath6kl *ar = file->private_data;
1308 char buf[16];
1309 int len;
1310
1311 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.disc_timeout);
1312
1313 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1314}
1315
1316static ssize_t ath6kl_disconnect_timeout_write(struct file *file,
1317 const char __user *user_buf,
1318 size_t count, loff_t *ppos)
1319{
1320 struct ath6kl *ar = file->private_data;
1321 int ret;
1322 u8 val;
1323
1324 ret = kstrtou8_from_user(user_buf, count, 0, &val);
1325 if (ret)
1326 return ret;
1327
1328 ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, 0, val);
1329 if (ret)
1330 return ret;
1331
1332 return count;
1333}
1334
1335static const struct file_operations fops_disconnect_timeout = {
1336 .open = simple_open,
1337 .read = ath6kl_disconnect_timeout_read,
1338 .write = ath6kl_disconnect_timeout_write,
1339 .owner = THIS_MODULE,
1340 .llseek = default_llseek,
1341};
1342
1343static ssize_t ath6kl_create_qos_write(struct file *file,
1344 const char __user *user_buf,
1345 size_t count, loff_t *ppos)
1346{
1347
1348 struct ath6kl *ar = file->private_data;
1349 struct ath6kl_vif *vif;
1350 char buf[200];
1351 ssize_t len;
1352 char *sptr, *token;
1353 struct wmi_create_pstream_cmd pstream;
1354 u32 val32;
1355 u16 val16;
1356
1357 vif = ath6kl_vif_first(ar);
1358 if (!vif)
1359 return -EIO;
1360
1361 len = min(count, sizeof(buf) - 1);
1362 if (copy_from_user(buf, user_buf, len))
1363 return -EFAULT;
1364 buf[len] = '\0';
1365 sptr = buf;
1366
1367 token = strsep(&sptr, " ");
1368 if (!token)
1369 return -EINVAL;
1370 if (kstrtou8(token, 0, &pstream.user_pri))
1371 return -EINVAL;
1372
1373 token = strsep(&sptr, " ");
1374 if (!token)
1375 return -EINVAL;
1376 if (kstrtou8(token, 0, &pstream.traffic_direc))
1377 return -EINVAL;
1378
1379 token = strsep(&sptr, " ");
1380 if (!token)
1381 return -EINVAL;
1382 if (kstrtou8(token, 0, &pstream.traffic_class))
1383 return -EINVAL;
1384
1385 token = strsep(&sptr, " ");
1386 if (!token)
1387 return -EINVAL;
1388 if (kstrtou8(token, 0, &pstream.traffic_type))
1389 return -EINVAL;
1390
1391 token = strsep(&sptr, " ");
1392 if (!token)
1393 return -EINVAL;
1394 if (kstrtou8(token, 0, &pstream.voice_psc_cap))
1395 return -EINVAL;
1396
1397 token = strsep(&sptr, " ");
1398 if (!token)
1399 return -EINVAL;
1400 if (kstrtou32(token, 0, &val32))
1401 return -EINVAL;
1402 pstream.min_service_int = cpu_to_le32(val32);
1403
1404 token = strsep(&sptr, " ");
1405 if (!token)
1406 return -EINVAL;
1407 if (kstrtou32(token, 0, &val32))
1408 return -EINVAL;
1409 pstream.max_service_int = cpu_to_le32(val32);
1410
1411 token = strsep(&sptr, " ");
1412 if (!token)
1413 return -EINVAL;
1414 if (kstrtou32(token, 0, &val32))
1415 return -EINVAL;
1416 pstream.inactivity_int = cpu_to_le32(val32);
1417
1418 token = strsep(&sptr, " ");
1419 if (!token)
1420 return -EINVAL;
1421 if (kstrtou32(token, 0, &val32))
1422 return -EINVAL;
1423 pstream.suspension_int = cpu_to_le32(val32);
1424
1425 token = strsep(&sptr, " ");
1426 if (!token)
1427 return -EINVAL;
1428 if (kstrtou32(token, 0, &val32))
1429 return -EINVAL;
1430 pstream.service_start_time = cpu_to_le32(val32);
1431
1432 token = strsep(&sptr, " ");
1433 if (!token)
1434 return -EINVAL;
1435 if (kstrtou8(token, 0, &pstream.tsid))
1436 return -EINVAL;
1437
1438 token = strsep(&sptr, " ");
1439 if (!token)
1440 return -EINVAL;
1441 if (kstrtou16(token, 0, &val16))
1442 return -EINVAL;
1443 pstream.nominal_msdu = cpu_to_le16(val16);
1444
1445 token = strsep(&sptr, " ");
1446 if (!token)
1447 return -EINVAL;
1448 if (kstrtou16(token, 0, &val16))
1449 return -EINVAL;
1450 pstream.max_msdu = cpu_to_le16(val16);
1451
1452 token = strsep(&sptr, " ");
1453 if (!token)
1454 return -EINVAL;
1455 if (kstrtou32(token, 0, &val32))
1456 return -EINVAL;
1457 pstream.min_data_rate = cpu_to_le32(val32);
1458
1459 token = strsep(&sptr, " ");
1460 if (!token)
1461 return -EINVAL;
1462 if (kstrtou32(token, 0, &val32))
1463 return -EINVAL;
1464 pstream.mean_data_rate = cpu_to_le32(val32);
1465
1466 token = strsep(&sptr, " ");
1467 if (!token)
1468 return -EINVAL;
1469 if (kstrtou32(token, 0, &val32))
1470 return -EINVAL;
1471 pstream.peak_data_rate = cpu_to_le32(val32);
1472
1473 token = strsep(&sptr, " ");
1474 if (!token)
1475 return -EINVAL;
1476 if (kstrtou32(token, 0, &val32))
1477 return -EINVAL;
1478 pstream.max_burst_size = cpu_to_le32(val32);
1479
1480 token = strsep(&sptr, " ");
1481 if (!token)
1482 return -EINVAL;
1483 if (kstrtou32(token, 0, &val32))
1484 return -EINVAL;
1485 pstream.delay_bound = cpu_to_le32(val32);
1486
1487 token = strsep(&sptr, " ");
1488 if (!token)
1489 return -EINVAL;
1490 if (kstrtou32(token, 0, &val32))
1491 return -EINVAL;
1492 pstream.min_phy_rate = cpu_to_le32(val32);
1493
1494 token = strsep(&sptr, " ");
1495 if (!token)
1496 return -EINVAL;
1497 if (kstrtou32(token, 0, &val32))
1498 return -EINVAL;
1499 pstream.sba = cpu_to_le32(val32);
1500
1501 token = strsep(&sptr, " ");
1502 if (!token)
1503 return -EINVAL;
1504 if (kstrtou32(token, 0, &val32))
1505 return -EINVAL;
1506 pstream.medium_time = cpu_to_le32(val32);
1507
1508 pstream.nominal_phy = le32_to_cpu(pstream.min_phy_rate) / 1000000;
1509
1510 ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream);
1511
1512 return count;
1513}
1514
1515static const struct file_operations fops_create_qos = {
1516 .write = ath6kl_create_qos_write,
1517 .open = simple_open,
1518 .owner = THIS_MODULE,
1519 .llseek = default_llseek,
1520};
1521
1522static ssize_t ath6kl_delete_qos_write(struct file *file,
1523 const char __user *user_buf,
1524 size_t count, loff_t *ppos)
1525{
1526
1527 struct ath6kl *ar = file->private_data;
1528 struct ath6kl_vif *vif;
1529 char buf[100];
1530 ssize_t len;
1531 char *sptr, *token;
1532 u8 traffic_class;
1533 u8 tsid;
1534
1535 vif = ath6kl_vif_first(ar);
1536 if (!vif)
1537 return -EIO;
1538
1539 len = min(count, sizeof(buf) - 1);
1540 if (copy_from_user(buf, user_buf, len))
1541 return -EFAULT;
1542 buf[len] = '\0';
1543 sptr = buf;
1544
1545 token = strsep(&sptr, " ");
1546 if (!token)
1547 return -EINVAL;
1548 if (kstrtou8(token, 0, &traffic_class))
1549 return -EINVAL;
1550
1551 token = strsep(&sptr, " ");
1552 if (!token)
1553 return -EINVAL;
1554 if (kstrtou8(token, 0, &tsid))
1555 return -EINVAL;
1556
1557 ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx,
1558 traffic_class, tsid);
1559
1560 return count;
1561}
1562
1563static const struct file_operations fops_delete_qos = {
1564 .write = ath6kl_delete_qos_write,
1565 .open = simple_open,
1566 .owner = THIS_MODULE,
1567 .llseek = default_llseek,
1568};
1569
1570static ssize_t ath6kl_bgscan_int_write(struct file *file,
1571 const char __user *user_buf,
1572 size_t count, loff_t *ppos)
1573{
1574 struct ath6kl *ar = file->private_data;
1575 struct ath6kl_vif *vif;
1576 u16 bgscan_int;
1577 char buf[32];
1578 ssize_t len;
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
1588 buf[len] = '\0';
1589 if (kstrtou16(buf, 0, &bgscan_int))
1590 return -EINVAL;
1591
1592 if (bgscan_int == 0)
1593 bgscan_int = 0xffff;
1594
1595 vif->bg_scan_period = bgscan_int;
1596
1597 ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3,
1598 0, 0, 0);
1599
1600 return count;
1601}
1602
1603static const struct file_operations fops_bgscan_int = {
1604 .write = ath6kl_bgscan_int_write,
1605 .open = simple_open,
1606 .owner = THIS_MODULE,
1607 .llseek = default_llseek,
1608};
1609
1610static ssize_t ath6kl_listen_int_write(struct file *file,
1611 const char __user *user_buf,
1612 size_t count, loff_t *ppos)
1613{
1614 struct ath6kl *ar = file->private_data;
1615 struct ath6kl_vif *vif;
1616 u16 listen_interval;
1617 char buf[32];
1618 ssize_t len;
1619
1620 vif = ath6kl_vif_first(ar);
1621 if (!vif)
1622 return -EIO;
1623
1624 len = min(count, sizeof(buf) - 1);
1625 if (copy_from_user(buf, user_buf, len))
1626 return -EFAULT;
1627
1628 buf[len] = '\0';
1629 if (kstrtou16(buf, 0, &listen_interval))
1630 return -EINVAL;
1631
1632 if ((listen_interval < 15) || (listen_interval > 3000))
1633 return -EINVAL;
1634
1635 vif->listen_intvl_t = listen_interval;
1636 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
1637 vif->listen_intvl_t, 0);
1638
1639 return count;
1640}
1641
1642static ssize_t ath6kl_listen_int_read(struct file *file,
1643 char __user *user_buf,
1644 size_t count, loff_t *ppos)
1645{
1646 struct ath6kl *ar = file->private_data;
1647 struct ath6kl_vif *vif;
1648 char buf[32];
1649 int len;
1650
1651 vif = ath6kl_vif_first(ar);
1652 if (!vif)
1653 return -EIO;
1654
1655 len = scnprintf(buf, sizeof(buf), "%u\n", vif->listen_intvl_t);
1656
1657 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1658}
1659
1660static const struct file_operations fops_listen_int = {
1661 .read = ath6kl_listen_int_read,
1662 .write = ath6kl_listen_int_write,
1663 .open = simple_open,
1664 .owner = THIS_MODULE,
1665 .llseek = default_llseek,
1666};
1667
1668static ssize_t ath6kl_power_params_write(struct file *file,
1669 const char __user *user_buf,
1670 size_t count, loff_t *ppos)
1671{
1672 struct ath6kl *ar = file->private_data;
1673 u8 buf[100];
1674 unsigned int len = 0;
1675 char *sptr, *token;
1676 u16 idle_period, ps_poll_num, dtim,
1677 tx_wakeup, num_tx;
1678
1679 len = min(count, sizeof(buf) - 1);
1680 if (copy_from_user(buf, user_buf, len))
1681 return -EFAULT;
1682 buf[len] = '\0';
1683 sptr = buf;
1684
1685 token = strsep(&sptr, " ");
1686 if (!token)
1687 return -EINVAL;
1688 if (kstrtou16(token, 0, &idle_period))
1689 return -EINVAL;
1690
1691 token = strsep(&sptr, " ");
1692 if (!token)
1693 return -EINVAL;
1694 if (kstrtou16(token, 0, &ps_poll_num))
1695 return -EINVAL;
1696
1697 token = strsep(&sptr, " ");
1698 if (!token)
1699 return -EINVAL;
1700 if (kstrtou16(token, 0, &dtim))
1701 return -EINVAL;
1702
1703 token = strsep(&sptr, " ");
1704 if (!token)
1705 return -EINVAL;
1706 if (kstrtou16(token, 0, &tx_wakeup))
1707 return -EINVAL;
1708
1709 token = strsep(&sptr, " ");
1710 if (!token)
1711 return -EINVAL;
1712 if (kstrtou16(token, 0, &num_tx))
1713 return -EINVAL;
1714
1715 ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num,
1716 dtim, tx_wakeup, num_tx, 0);
1717
1718 return count;
1719}
1720
1721static const struct file_operations fops_power_params = {
1722 .write = ath6kl_power_params_write,
1723 .open = simple_open,
1724 .owner = THIS_MODULE,
1725 .llseek = default_llseek,
1726};
1727
1728void ath6kl_debug_init(struct ath6kl *ar)
1729{
1730 skb_queue_head_init(&ar->debug.fwlog_queue);
1731 init_completion(&ar->debug.fwlog_completion);
1732
1733 /*
1734 * Actually we are lying here but don't know how to read the mask
1735 * value from the firmware.
1736 */
1737 ar->debug.fwlog_mask = 0;
1738}
1739
1740/*
1741 * Initialisation needs to happen in two stages as fwlog events can come
1742 * before cfg80211 is initialised, and debugfs depends on cfg80211
1743 * initialisation.
1744 */
1745int ath6kl_debug_init_fs(struct ath6kl *ar)
1746{
1747 ar->debugfs_phy = debugfs_create_dir("ath6kl",
1748 ar->wiphy->debugfsdir);
1749 if (!ar->debugfs_phy)
1750 return -ENOMEM;
1751
1752 debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar,
1753 &fops_tgt_stats);
1754
1755 debugfs_create_file("credit_dist_stats", S_IRUSR, ar->debugfs_phy, ar,
1756 &fops_credit_dist_stats);
1757
1758 debugfs_create_file("endpoint_stats", S_IRUSR | S_IWUSR,
1759 ar->debugfs_phy, ar, &fops_endpoint_stats);
1760
1761 debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar,
1762 &fops_fwlog);
1763
1764 debugfs_create_file("fwlog_block", S_IRUSR, ar->debugfs_phy, ar,
1765 &fops_fwlog_block);
1766
1767 debugfs_create_file("fwlog_mask", S_IRUSR | S_IWUSR, ar->debugfs_phy,
1768 ar, &fops_fwlog_mask);
1769
1770 debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar,
1771 &fops_diag_reg_read);
1772
1773 debugfs_create_file("reg_dump", S_IRUSR, ar->debugfs_phy, ar,
1774 &fops_reg_dump);
1775
1776 debugfs_create_file("lrssi_roam_threshold", S_IRUSR | S_IWUSR,
1777 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold);
1778
1779 debugfs_create_file("reg_write", S_IRUSR | S_IWUSR,
1780 ar->debugfs_phy, ar, &fops_diag_reg_write);
1781
1782 debugfs_create_file("war_stats", S_IRUSR, ar->debugfs_phy, ar,
1783 &fops_war_stats);
1784
1785 debugfs_create_file("roam_table", S_IRUSR, ar->debugfs_phy, ar,
1786 &fops_roam_table);
1787
1788 debugfs_create_file("force_roam", S_IWUSR, ar->debugfs_phy, ar,
1789 &fops_force_roam);
1790
1791 debugfs_create_file("roam_mode", S_IWUSR, ar->debugfs_phy, ar,
1792 &fops_roam_mode);
1793
1794 debugfs_create_file("keepalive", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar,
1795 &fops_keepalive);
1796
1797 debugfs_create_file("disconnect_timeout", S_IRUSR | S_IWUSR,
1798 ar->debugfs_phy, ar, &fops_disconnect_timeout);
1799
1800 debugfs_create_file("create_qos", S_IWUSR, ar->debugfs_phy, ar,
1801 &fops_create_qos);
1802
1803 debugfs_create_file("delete_qos", S_IWUSR, ar->debugfs_phy, ar,
1804 &fops_delete_qos);
1805
1806 debugfs_create_file("bgscan_interval", S_IWUSR,
1807 ar->debugfs_phy, ar, &fops_bgscan_int);
1808
1809 debugfs_create_file("listen_interval", S_IRUSR | S_IWUSR,
1810 ar->debugfs_phy, ar, &fops_listen_int);
1811
1812 debugfs_create_file("power_params", S_IWUSR, ar->debugfs_phy, ar,
1813 &fops_power_params);
1814
1815 return 0;
1816}
1817
1818void ath6kl_debug_cleanup(struct ath6kl *ar)
1819{
1820 skb_queue_purge(&ar->debug.fwlog_queue);
1821 complete(&ar->debug.fwlog_completion);
1822 kfree(ar->debug.roam_tbl);
1823}
1824
1825#endif