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1/*
2 * Copyright (c) 2007-2008 Bruno Randolf <bruno@thinktube.com>
3 *
4 * This file is free software: you may copy, redistribute and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation, either version 2 of the License, or (at your
7 * option) any later version.
8 *
9 * This file is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 *
17 *
18 * This file incorporates work covered by the following copyright and
19 * permission notice:
20 *
21 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
22 * Copyright (c) 2004-2005 Atheros Communications, Inc.
23 * Copyright (c) 2006 Devicescape Software, Inc.
24 * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
25 * Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
26 *
27 * All rights reserved.
28 *
29 * Redistribution and use in source and binary forms, with or without
30 * modification, are permitted provided that the following conditions
31 * are met:
32 * 1. Redistributions of source code must retain the above copyright
33 * notice, this list of conditions and the following disclaimer,
34 * without modification.
35 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
36 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
37 * redistribution must be conditioned upon including a substantially
38 * similar Disclaimer requirement for further binary redistribution.
39 * 3. Neither the names of the above-listed copyright holders nor the names
40 * of any contributors may be used to endorse or promote products derived
41 * from this software without specific prior written permission.
42 *
43 * Alternatively, this software may be distributed under the terms of the
44 * GNU General Public License ("GPL") version 2 as published by the Free
45 * Software Foundation.
46 *
47 * NO WARRANTY
48 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
49 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
50 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
51 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
52 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
53 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
54 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
55 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
56 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
57 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
58 * THE POSSIBILITY OF SUCH DAMAGES.
59 */
60
61#include "base.h"
62#include "debug.h"
63
64static unsigned int ath5k_debug;
65module_param_named(debug, ath5k_debug, uint, 0);
66
67
68#ifdef CONFIG_ATH5K_DEBUG
69
70#include <linux/seq_file.h>
71#include "reg.h"
72#include "ani.h"
73
74static int ath5k_debugfs_open(struct inode *inode, struct file *file)
75{
76 file->private_data = inode->i_private;
77 return 0;
78}
79
80
81/* debugfs: registers */
82
83struct reg {
84 const char *name;
85 int addr;
86};
87
88#define REG_STRUCT_INIT(r) { #r, r }
89
90/* just a few random registers, might want to add more */
91static const struct reg regs[] = {
92 REG_STRUCT_INIT(AR5K_CR),
93 REG_STRUCT_INIT(AR5K_RXDP),
94 REG_STRUCT_INIT(AR5K_CFG),
95 REG_STRUCT_INIT(AR5K_IER),
96 REG_STRUCT_INIT(AR5K_BCR),
97 REG_STRUCT_INIT(AR5K_RTSD0),
98 REG_STRUCT_INIT(AR5K_RTSD1),
99 REG_STRUCT_INIT(AR5K_TXCFG),
100 REG_STRUCT_INIT(AR5K_RXCFG),
101 REG_STRUCT_INIT(AR5K_RXJLA),
102 REG_STRUCT_INIT(AR5K_MIBC),
103 REG_STRUCT_INIT(AR5K_TOPS),
104 REG_STRUCT_INIT(AR5K_RXNOFRM),
105 REG_STRUCT_INIT(AR5K_TXNOFRM),
106 REG_STRUCT_INIT(AR5K_RPGTO),
107 REG_STRUCT_INIT(AR5K_RFCNT),
108 REG_STRUCT_INIT(AR5K_MISC),
109 REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT),
110 REG_STRUCT_INIT(AR5K_ISR),
111 REG_STRUCT_INIT(AR5K_PISR),
112 REG_STRUCT_INIT(AR5K_SISR0),
113 REG_STRUCT_INIT(AR5K_SISR1),
114 REG_STRUCT_INIT(AR5K_SISR2),
115 REG_STRUCT_INIT(AR5K_SISR3),
116 REG_STRUCT_INIT(AR5K_SISR4),
117 REG_STRUCT_INIT(AR5K_IMR),
118 REG_STRUCT_INIT(AR5K_PIMR),
119 REG_STRUCT_INIT(AR5K_SIMR0),
120 REG_STRUCT_INIT(AR5K_SIMR1),
121 REG_STRUCT_INIT(AR5K_SIMR2),
122 REG_STRUCT_INIT(AR5K_SIMR3),
123 REG_STRUCT_INIT(AR5K_SIMR4),
124 REG_STRUCT_INIT(AR5K_DCM_ADDR),
125 REG_STRUCT_INIT(AR5K_DCCFG),
126 REG_STRUCT_INIT(AR5K_CCFG),
127 REG_STRUCT_INIT(AR5K_CPC0),
128 REG_STRUCT_INIT(AR5K_CPC1),
129 REG_STRUCT_INIT(AR5K_CPC2),
130 REG_STRUCT_INIT(AR5K_CPC3),
131 REG_STRUCT_INIT(AR5K_CPCOVF),
132 REG_STRUCT_INIT(AR5K_RESET_CTL),
133 REG_STRUCT_INIT(AR5K_SLEEP_CTL),
134 REG_STRUCT_INIT(AR5K_INTPEND),
135 REG_STRUCT_INIT(AR5K_SFR),
136 REG_STRUCT_INIT(AR5K_PCICFG),
137 REG_STRUCT_INIT(AR5K_GPIOCR),
138 REG_STRUCT_INIT(AR5K_GPIODO),
139 REG_STRUCT_INIT(AR5K_SREV),
140};
141
142static void *reg_start(struct seq_file *seq, loff_t *pos)
143{
144 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;
145}
146
147static void reg_stop(struct seq_file *seq, void *p)
148{
149 /* nothing to do */
150}
151
152static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)
153{
154 ++*pos;
155 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;
156}
157
158static int reg_show(struct seq_file *seq, void *p)
159{
160 struct ath5k_hw *ah = seq->private;
161 struct reg *r = p;
162 seq_printf(seq, "%-25s0x%08x\n", r->name,
163 ath5k_hw_reg_read(ah, r->addr));
164 return 0;
165}
166
167static const struct seq_operations register_seq_ops = {
168 .start = reg_start,
169 .next = reg_next,
170 .stop = reg_stop,
171 .show = reg_show
172};
173
174static int open_file_registers(struct inode *inode, struct file *file)
175{
176 struct seq_file *s;
177 int res;
178 res = seq_open(file, ®ister_seq_ops);
179 if (res == 0) {
180 s = file->private_data;
181 s->private = inode->i_private;
182 }
183 return res;
184}
185
186static const struct file_operations fops_registers = {
187 .open = open_file_registers,
188 .read = seq_read,
189 .llseek = seq_lseek,
190 .release = seq_release,
191 .owner = THIS_MODULE,
192};
193
194
195/* debugfs: beacons */
196
197static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
198 size_t count, loff_t *ppos)
199{
200 struct ath5k_hw *ah = file->private_data;
201 char buf[500];
202 unsigned int len = 0;
203 unsigned int v;
204 u64 tsf;
205
206 v = ath5k_hw_reg_read(ah, AR5K_BEACON);
207 len += snprintf(buf + len, sizeof(buf) - len,
208 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
209 "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,
210 (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);
211
212 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n",
213 "AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP));
214
215 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n",
216 "AR5K_BEACON_CNT", ath5k_hw_reg_read(ah, AR5K_BEACON_CNT));
217
218 v = ath5k_hw_reg_read(ah, AR5K_TIMER0);
219 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
220 "AR5K_TIMER0 (TBTT)", v, v);
221
222 v = ath5k_hw_reg_read(ah, AR5K_TIMER1);
223 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
224 "AR5K_TIMER1 (DMA)", v, v >> 3);
225
226 v = ath5k_hw_reg_read(ah, AR5K_TIMER2);
227 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
228 "AR5K_TIMER2 (SWBA)", v, v >> 3);
229
230 v = ath5k_hw_reg_read(ah, AR5K_TIMER3);
231 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
232 "AR5K_TIMER3 (ATIM)", v, v);
233
234 tsf = ath5k_hw_get_tsf64(ah);
235 len += snprintf(buf + len, sizeof(buf) - len,
236 "TSF\t\t0x%016llx\tTU: %08x\n",
237 (unsigned long long)tsf, TSF_TO_TU(tsf));
238
239 if (len > sizeof(buf))
240 len = sizeof(buf);
241
242 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
243}
244
245static ssize_t write_file_beacon(struct file *file,
246 const char __user *userbuf,
247 size_t count, loff_t *ppos)
248{
249 struct ath5k_hw *ah = file->private_data;
250 char buf[20];
251
252 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
253 return -EFAULT;
254
255 if (strncmp(buf, "disable", 7) == 0) {
256 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
257 printk(KERN_INFO "debugfs disable beacons\n");
258 } else if (strncmp(buf, "enable", 6) == 0) {
259 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
260 printk(KERN_INFO "debugfs enable beacons\n");
261 }
262 return count;
263}
264
265static const struct file_operations fops_beacon = {
266 .read = read_file_beacon,
267 .write = write_file_beacon,
268 .open = ath5k_debugfs_open,
269 .owner = THIS_MODULE,
270 .llseek = default_llseek,
271};
272
273
274/* debugfs: reset */
275
276static ssize_t write_file_reset(struct file *file,
277 const char __user *userbuf,
278 size_t count, loff_t *ppos)
279{
280 struct ath5k_hw *ah = file->private_data;
281 ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
282 ieee80211_queue_work(ah->hw, &ah->reset_work);
283 return count;
284}
285
286static const struct file_operations fops_reset = {
287 .write = write_file_reset,
288 .open = ath5k_debugfs_open,
289 .owner = THIS_MODULE,
290 .llseek = noop_llseek,
291};
292
293
294/* debugfs: debug level */
295
296static const struct {
297 enum ath5k_debug_level level;
298 const char *name;
299 const char *desc;
300} dbg_info[] = {
301 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" },
302 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" },
303 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" },
304 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" },
305 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" },
306 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" },
307 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" },
308 { ATH5K_DEBUG_LED, "led", "LED management" },
309 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" },
310 { ATH5K_DEBUG_DMA, "dma", "dma start/stop" },
311 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" },
312 { ATH5K_DEBUG_DESC, "desc", "descriptor chains" },
313 { ATH5K_DEBUG_ANY, "all", "show all debug levels" },
314};
315
316static ssize_t read_file_debug(struct file *file, char __user *user_buf,
317 size_t count, loff_t *ppos)
318{
319 struct ath5k_hw *ah = file->private_data;
320 char buf[700];
321 unsigned int len = 0;
322 unsigned int i;
323
324 len += snprintf(buf + len, sizeof(buf) - len,
325 "DEBUG LEVEL: 0x%08x\n\n", ah->debug.level);
326
327 for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
328 len += snprintf(buf + len, sizeof(buf) - len,
329 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
330 ah->debug.level & dbg_info[i].level ? '+' : ' ',
331 dbg_info[i].level, dbg_info[i].desc);
332 }
333 len += snprintf(buf + len, sizeof(buf) - len,
334 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
335 ah->debug.level == dbg_info[i].level ? '+' : ' ',
336 dbg_info[i].level, dbg_info[i].desc);
337
338 if (len > sizeof(buf))
339 len = sizeof(buf);
340
341 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
342}
343
344static ssize_t write_file_debug(struct file *file,
345 const char __user *userbuf,
346 size_t count, loff_t *ppos)
347{
348 struct ath5k_hw *ah = file->private_data;
349 unsigned int i;
350 char buf[20];
351
352 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
353 return -EFAULT;
354
355 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
356 if (strncmp(buf, dbg_info[i].name,
357 strlen(dbg_info[i].name)) == 0) {
358 ah->debug.level ^= dbg_info[i].level; /* toggle bit */
359 break;
360 }
361 }
362 return count;
363}
364
365static const struct file_operations fops_debug = {
366 .read = read_file_debug,
367 .write = write_file_debug,
368 .open = ath5k_debugfs_open,
369 .owner = THIS_MODULE,
370 .llseek = default_llseek,
371};
372
373
374/* debugfs: antenna */
375
376static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
377 size_t count, loff_t *ppos)
378{
379 struct ath5k_hw *ah = file->private_data;
380 char buf[700];
381 unsigned int len = 0;
382 unsigned int i;
383 unsigned int v;
384
385 len += snprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n",
386 ah->ah_ant_mode);
387 len += snprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n",
388 ah->ah_def_ant);
389 len += snprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n",
390 ah->ah_tx_ant);
391
392 len += snprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n");
393 for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
394 len += snprintf(buf + len, sizeof(buf) - len,
395 "[antenna %d]\t%d\t%d\n",
396 i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]);
397 }
398 len += snprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n",
399 ah->stats.antenna_rx[0], ah->stats.antenna_tx[0]);
400
401 v = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA);
402 len += snprintf(buf + len, sizeof(buf) - len,
403 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
404
405 v = ath5k_hw_reg_read(ah, AR5K_STA_ID1);
406 len += snprintf(buf + len, sizeof(buf) - len,
407 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
408 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
409 len += snprintf(buf + len, sizeof(buf) - len,
410 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
411 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
412 len += snprintf(buf + len, sizeof(buf) - len,
413 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
414 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
415 len += snprintf(buf + len, sizeof(buf) - len,
416 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
417 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
418
419 v = ath5k_hw_reg_read(ah, AR5K_PHY_AGCCTL);
420 len += snprintf(buf + len, sizeof(buf) - len,
421 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
422 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
423
424 v = ath5k_hw_reg_read(ah, AR5K_PHY_RESTART);
425 len += snprintf(buf + len, sizeof(buf) - len,
426 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
427 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
428
429 v = ath5k_hw_reg_read(ah, AR5K_PHY_FAST_ANT_DIV);
430 len += snprintf(buf + len, sizeof(buf) - len,
431 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
432 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
433
434 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
435 len += snprintf(buf + len, sizeof(buf) - len,
436 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
437 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
438 len += snprintf(buf + len, sizeof(buf) - len,
439 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
440
441 if (len > sizeof(buf))
442 len = sizeof(buf);
443
444 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
445}
446
447static ssize_t write_file_antenna(struct file *file,
448 const char __user *userbuf,
449 size_t count, loff_t *ppos)
450{
451 struct ath5k_hw *ah = file->private_data;
452 unsigned int i;
453 char buf[20];
454
455 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
456 return -EFAULT;
457
458 if (strncmp(buf, "diversity", 9) == 0) {
459 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT);
460 printk(KERN_INFO "ath5k debug: enable diversity\n");
461 } else if (strncmp(buf, "fixed-a", 7) == 0) {
462 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A);
463 printk(KERN_INFO "ath5k debugfs: fixed antenna A\n");
464 } else if (strncmp(buf, "fixed-b", 7) == 0) {
465 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B);
466 printk(KERN_INFO "ath5k debug: fixed antenna B\n");
467 } else if (strncmp(buf, "clear", 5) == 0) {
468 for (i = 0; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
469 ah->stats.antenna_rx[i] = 0;
470 ah->stats.antenna_tx[i] = 0;
471 }
472 printk(KERN_INFO "ath5k debug: cleared antenna stats\n");
473 }
474 return count;
475}
476
477static const struct file_operations fops_antenna = {
478 .read = read_file_antenna,
479 .write = write_file_antenna,
480 .open = ath5k_debugfs_open,
481 .owner = THIS_MODULE,
482 .llseek = default_llseek,
483};
484
485/* debugfs: misc */
486
487static ssize_t read_file_misc(struct file *file, char __user *user_buf,
488 size_t count, loff_t *ppos)
489{
490 struct ath5k_hw *ah = file->private_data;
491 char buf[700];
492 unsigned int len = 0;
493 u32 filt = ath5k_hw_get_rx_filter(ah);
494
495 len += snprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n",
496 ah->bssidmask);
497 len += snprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ",
498 filt);
499 if (filt & AR5K_RX_FILTER_UCAST)
500 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
501 if (filt & AR5K_RX_FILTER_MCAST)
502 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
503 if (filt & AR5K_RX_FILTER_BCAST)
504 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
505 if (filt & AR5K_RX_FILTER_CONTROL)
506 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
507 if (filt & AR5K_RX_FILTER_BEACON)
508 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
509 if (filt & AR5K_RX_FILTER_PROM)
510 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
511 if (filt & AR5K_RX_FILTER_XRPOLL)
512 len += snprintf(buf + len, sizeof(buf) - len, " XRPOLL");
513 if (filt & AR5K_RX_FILTER_PROBEREQ)
514 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
515 if (filt & AR5K_RX_FILTER_PHYERR_5212)
516 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR-5212");
517 if (filt & AR5K_RX_FILTER_RADARERR_5212)
518 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5212");
519 if (filt & AR5K_RX_FILTER_PHYERR_5211)
520 snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211");
521 if (filt & AR5K_RX_FILTER_RADARERR_5211)
522 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5211");
523
524 len += snprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n",
525 ath_opmode_to_string(ah->opmode), ah->opmode);
526
527 if (len > sizeof(buf))
528 len = sizeof(buf);
529
530 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
531}
532
533static const struct file_operations fops_misc = {
534 .read = read_file_misc,
535 .open = ath5k_debugfs_open,
536 .owner = THIS_MODULE,
537};
538
539
540/* debugfs: frameerrors */
541
542static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
543 size_t count, loff_t *ppos)
544{
545 struct ath5k_hw *ah = file->private_data;
546 struct ath5k_statistics *st = &ah->stats;
547 char buf[700];
548 unsigned int len = 0;
549 int i;
550
551 len += snprintf(buf + len, sizeof(buf) - len,
552 "RX\n---------------------\n");
553 len += snprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n",
554 st->rxerr_crc,
555 st->rx_all_count > 0 ?
556 st->rxerr_crc * 100 / st->rx_all_count : 0);
557 len += snprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n",
558 st->rxerr_phy,
559 st->rx_all_count > 0 ?
560 st->rxerr_phy * 100 / st->rx_all_count : 0);
561 for (i = 0; i < 32; i++) {
562 if (st->rxerr_phy_code[i])
563 len += snprintf(buf + len, sizeof(buf) - len,
564 " phy_err[%u]\t%u\n",
565 i, st->rxerr_phy_code[i]);
566 }
567
568 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
569 st->rxerr_fifo,
570 st->rx_all_count > 0 ?
571 st->rxerr_fifo * 100 / st->rx_all_count : 0);
572 len += snprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n",
573 st->rxerr_decrypt,
574 st->rx_all_count > 0 ?
575 st->rxerr_decrypt * 100 / st->rx_all_count : 0);
576 len += snprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n",
577 st->rxerr_mic,
578 st->rx_all_count > 0 ?
579 st->rxerr_mic * 100 / st->rx_all_count : 0);
580 len += snprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n",
581 st->rxerr_proc,
582 st->rx_all_count > 0 ?
583 st->rxerr_proc * 100 / st->rx_all_count : 0);
584 len += snprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n",
585 st->rxerr_jumbo,
586 st->rx_all_count > 0 ?
587 st->rxerr_jumbo * 100 / st->rx_all_count : 0);
588 len += snprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n",
589 st->rx_all_count);
590 len += snprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n",
591 st->rx_bytes_count);
592
593 len += snprintf(buf + len, sizeof(buf) - len,
594 "\nTX\n---------------------\n");
595 len += snprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n",
596 st->txerr_retry,
597 st->tx_all_count > 0 ?
598 st->txerr_retry * 100 / st->tx_all_count : 0);
599 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
600 st->txerr_fifo,
601 st->tx_all_count > 0 ?
602 st->txerr_fifo * 100 / st->tx_all_count : 0);
603 len += snprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n",
604 st->txerr_filt,
605 st->tx_all_count > 0 ?
606 st->txerr_filt * 100 / st->tx_all_count : 0);
607 len += snprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n",
608 st->tx_all_count);
609 len += snprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n",
610 st->tx_bytes_count);
611
612 if (len > sizeof(buf))
613 len = sizeof(buf);
614
615 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
616}
617
618static ssize_t write_file_frameerrors(struct file *file,
619 const char __user *userbuf,
620 size_t count, loff_t *ppos)
621{
622 struct ath5k_hw *ah = file->private_data;
623 struct ath5k_statistics *st = &ah->stats;
624 char buf[20];
625
626 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
627 return -EFAULT;
628
629 if (strncmp(buf, "clear", 5) == 0) {
630 st->rxerr_crc = 0;
631 st->rxerr_phy = 0;
632 st->rxerr_fifo = 0;
633 st->rxerr_decrypt = 0;
634 st->rxerr_mic = 0;
635 st->rxerr_proc = 0;
636 st->rxerr_jumbo = 0;
637 st->rx_all_count = 0;
638 st->txerr_retry = 0;
639 st->txerr_fifo = 0;
640 st->txerr_filt = 0;
641 st->tx_all_count = 0;
642 printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n");
643 }
644 return count;
645}
646
647static const struct file_operations fops_frameerrors = {
648 .read = read_file_frameerrors,
649 .write = write_file_frameerrors,
650 .open = ath5k_debugfs_open,
651 .owner = THIS_MODULE,
652 .llseek = default_llseek,
653};
654
655
656/* debugfs: ani */
657
658static ssize_t read_file_ani(struct file *file, char __user *user_buf,
659 size_t count, loff_t *ppos)
660{
661 struct ath5k_hw *ah = file->private_data;
662 struct ath5k_statistics *st = &ah->stats;
663 struct ath5k_ani_state *as = &ah->ani_state;
664
665 char buf[700];
666 unsigned int len = 0;
667
668 len += snprintf(buf + len, sizeof(buf) - len,
669 "HW has PHY error counters:\t%s\n",
670 ah->ah_capabilities.cap_has_phyerr_counters ?
671 "yes" : "no");
672 len += snprintf(buf + len, sizeof(buf) - len,
673 "HW max spur immunity level:\t%d\n",
674 as->max_spur_level);
675 len += snprintf(buf + len, sizeof(buf) - len,
676 "\nANI state\n--------------------------------------------\n");
677 len += snprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t");
678 switch (as->ani_mode) {
679 case ATH5K_ANI_MODE_OFF:
680 len += snprintf(buf + len, sizeof(buf) - len, "OFF\n");
681 break;
682 case ATH5K_ANI_MODE_MANUAL_LOW:
683 len += snprintf(buf + len, sizeof(buf) - len,
684 "MANUAL LOW\n");
685 break;
686 case ATH5K_ANI_MODE_MANUAL_HIGH:
687 len += snprintf(buf + len, sizeof(buf) - len,
688 "MANUAL HIGH\n");
689 break;
690 case ATH5K_ANI_MODE_AUTO:
691 len += snprintf(buf + len, sizeof(buf) - len, "AUTO\n");
692 break;
693 default:
694 len += snprintf(buf + len, sizeof(buf) - len,
695 "??? (not good)\n");
696 break;
697 }
698 len += snprintf(buf + len, sizeof(buf) - len,
699 "noise immunity level:\t\t%d\n",
700 as->noise_imm_level);
701 len += snprintf(buf + len, sizeof(buf) - len,
702 "spur immunity level:\t\t%d\n",
703 as->spur_level);
704 len += snprintf(buf + len, sizeof(buf) - len,
705 "firstep level:\t\t\t%d\n",
706 as->firstep_level);
707 len += snprintf(buf + len, sizeof(buf) - len,
708 "OFDM weak signal detection:\t%s\n",
709 as->ofdm_weak_sig ? "on" : "off");
710 len += snprintf(buf + len, sizeof(buf) - len,
711 "CCK weak signal detection:\t%s\n",
712 as->cck_weak_sig ? "on" : "off");
713
714 len += snprintf(buf + len, sizeof(buf) - len,
715 "\nMIB INTERRUPTS:\t\t%u\n",
716 st->mib_intr);
717 len += snprintf(buf + len, sizeof(buf) - len,
718 "beacon RSSI average:\t%d\n",
719 (int)ewma_read(&ah->ah_beacon_rssi_avg));
720
721#define CC_PRINT(_struct, _field) \
722 _struct._field, \
723 _struct.cycles > 0 ? \
724 _struct._field * 100 / _struct.cycles : 0
725
726 len += snprintf(buf + len, sizeof(buf) - len,
727 "profcnt tx\t\t%u\t(%d%%)\n",
728 CC_PRINT(as->last_cc, tx_frame));
729 len += snprintf(buf + len, sizeof(buf) - len,
730 "profcnt rx\t\t%u\t(%d%%)\n",
731 CC_PRINT(as->last_cc, rx_frame));
732 len += snprintf(buf + len, sizeof(buf) - len,
733 "profcnt busy\t\t%u\t(%d%%)\n",
734 CC_PRINT(as->last_cc, rx_busy));
735#undef CC_PRINT
736 len += snprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n",
737 as->last_cc.cycles);
738 len += snprintf(buf + len, sizeof(buf) - len,
739 "listen time\t\t%d\tlast: %d\n",
740 as->listen_time, as->last_listen);
741 len += snprintf(buf + len, sizeof(buf) - len,
742 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
743 as->ofdm_errors, as->last_ofdm_errors,
744 as->sum_ofdm_errors);
745 len += snprintf(buf + len, sizeof(buf) - len,
746 "CCK errors\t\t%u\tlast: %u\tsum: %u\n",
747 as->cck_errors, as->last_cck_errors,
748 as->sum_cck_errors);
749 len += snprintf(buf + len, sizeof(buf) - len,
750 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
751 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1),
752 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
753 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1)));
754 len += snprintf(buf + len, sizeof(buf) - len,
755 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
756 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2),
757 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
758 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2)));
759
760 if (len > sizeof(buf))
761 len = sizeof(buf);
762
763 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
764}
765
766static ssize_t write_file_ani(struct file *file,
767 const char __user *userbuf,
768 size_t count, loff_t *ppos)
769{
770 struct ath5k_hw *ah = file->private_data;
771 char buf[20];
772
773 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
774 return -EFAULT;
775
776 if (strncmp(buf, "sens-low", 8) == 0) {
777 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_HIGH);
778 } else if (strncmp(buf, "sens-high", 9) == 0) {
779 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_LOW);
780 } else if (strncmp(buf, "ani-off", 7) == 0) {
781 ath5k_ani_init(ah, ATH5K_ANI_MODE_OFF);
782 } else if (strncmp(buf, "ani-on", 6) == 0) {
783 ath5k_ani_init(ah, ATH5K_ANI_MODE_AUTO);
784 } else if (strncmp(buf, "noise-low", 9) == 0) {
785 ath5k_ani_set_noise_immunity_level(ah, 0);
786 } else if (strncmp(buf, "noise-high", 10) == 0) {
787 ath5k_ani_set_noise_immunity_level(ah,
788 ATH5K_ANI_MAX_NOISE_IMM_LVL);
789 } else if (strncmp(buf, "spur-low", 8) == 0) {
790 ath5k_ani_set_spur_immunity_level(ah, 0);
791 } else if (strncmp(buf, "spur-high", 9) == 0) {
792 ath5k_ani_set_spur_immunity_level(ah,
793 ah->ani_state.max_spur_level);
794 } else if (strncmp(buf, "fir-low", 7) == 0) {
795 ath5k_ani_set_firstep_level(ah, 0);
796 } else if (strncmp(buf, "fir-high", 8) == 0) {
797 ath5k_ani_set_firstep_level(ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
798 } else if (strncmp(buf, "ofdm-off", 8) == 0) {
799 ath5k_ani_set_ofdm_weak_signal_detection(ah, false);
800 } else if (strncmp(buf, "ofdm-on", 7) == 0) {
801 ath5k_ani_set_ofdm_weak_signal_detection(ah, true);
802 } else if (strncmp(buf, "cck-off", 7) == 0) {
803 ath5k_ani_set_cck_weak_signal_detection(ah, false);
804 } else if (strncmp(buf, "cck-on", 6) == 0) {
805 ath5k_ani_set_cck_weak_signal_detection(ah, true);
806 }
807 return count;
808}
809
810static const struct file_operations fops_ani = {
811 .read = read_file_ani,
812 .write = write_file_ani,
813 .open = ath5k_debugfs_open,
814 .owner = THIS_MODULE,
815 .llseek = default_llseek,
816};
817
818
819/* debugfs: queues etc */
820
821static ssize_t read_file_queue(struct file *file, char __user *user_buf,
822 size_t count, loff_t *ppos)
823{
824 struct ath5k_hw *ah = file->private_data;
825 char buf[700];
826 unsigned int len = 0;
827
828 struct ath5k_txq *txq;
829 struct ath5k_buf *bf, *bf0;
830 int i, n;
831
832 len += snprintf(buf + len, sizeof(buf) - len,
833 "available txbuffers: %d\n", ah->txbuf_len);
834
835 for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) {
836 txq = &ah->txqs[i];
837
838 len += snprintf(buf + len, sizeof(buf) - len,
839 "%02d: %ssetup\n", i, txq->setup ? "" : "not ");
840
841 if (!txq->setup)
842 continue;
843
844 n = 0;
845 spin_lock_bh(&txq->lock);
846 list_for_each_entry_safe(bf, bf0, &txq->q, list)
847 n++;
848 spin_unlock_bh(&txq->lock);
849
850 len += snprintf(buf + len, sizeof(buf) - len,
851 " len: %d bufs: %d\n", txq->txq_len, n);
852 len += snprintf(buf + len, sizeof(buf) - len,
853 " stuck: %d\n", txq->txq_stuck);
854 }
855
856 if (len > sizeof(buf))
857 len = sizeof(buf);
858
859 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
860}
861
862static ssize_t write_file_queue(struct file *file,
863 const char __user *userbuf,
864 size_t count, loff_t *ppos)
865{
866 struct ath5k_hw *ah = file->private_data;
867 char buf[20];
868
869 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
870 return -EFAULT;
871
872 if (strncmp(buf, "start", 5) == 0)
873 ieee80211_wake_queues(ah->hw);
874 else if (strncmp(buf, "stop", 4) == 0)
875 ieee80211_stop_queues(ah->hw);
876
877 return count;
878}
879
880
881static const struct file_operations fops_queue = {
882 .read = read_file_queue,
883 .write = write_file_queue,
884 .open = ath5k_debugfs_open,
885 .owner = THIS_MODULE,
886 .llseek = default_llseek,
887};
888
889
890void
891ath5k_debug_init_device(struct ath5k_hw *ah)
892{
893 struct dentry *phydir;
894
895 ah->debug.level = ath5k_debug;
896
897 phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir);
898 if (!phydir)
899 return;
900
901 debugfs_create_file("debug", S_IWUSR | S_IRUSR, phydir, ah,
902 &fops_debug);
903
904 debugfs_create_file("registers", S_IRUSR, phydir, ah, &fops_registers);
905
906 debugfs_create_file("beacon", S_IWUSR | S_IRUSR, phydir, ah,
907 &fops_beacon);
908
909 debugfs_create_file("reset", S_IWUSR, phydir, ah, &fops_reset);
910
911 debugfs_create_file("antenna", S_IWUSR | S_IRUSR, phydir, ah,
912 &fops_antenna);
913
914 debugfs_create_file("misc", S_IRUSR, phydir, ah, &fops_misc);
915
916 debugfs_create_file("frameerrors", S_IWUSR | S_IRUSR, phydir, ah,
917 &fops_frameerrors);
918
919 debugfs_create_file("ani", S_IWUSR | S_IRUSR, phydir, ah, &fops_ani);
920
921 debugfs_create_file("queue", S_IWUSR | S_IRUSR, phydir, ah,
922 &fops_queue);
923
924 debugfs_create_bool("32khz_clock", S_IWUSR | S_IRUSR, phydir,
925 &ah->ah_use_32khz_clock);
926}
927
928/* functions used in other places */
929
930void
931ath5k_debug_dump_bands(struct ath5k_hw *ah)
932{
933 unsigned int b, i;
934
935 if (likely(!(ah->debug.level & ATH5K_DEBUG_DUMPBANDS)))
936 return;
937
938 BUG_ON(!ah->sbands);
939
940 for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
941 struct ieee80211_supported_band *band = &ah->sbands[b];
942 char bname[6];
943 switch (band->band) {
944 case IEEE80211_BAND_2GHZ:
945 strcpy(bname, "2 GHz");
946 break;
947 case IEEE80211_BAND_5GHZ:
948 strcpy(bname, "5 GHz");
949 break;
950 default:
951 printk(KERN_DEBUG "Band not supported: %d\n",
952 band->band);
953 return;
954 }
955 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
956 band->n_channels, band->n_bitrates);
957 printk(KERN_DEBUG " channels:\n");
958 for (i = 0; i < band->n_channels; i++)
959 printk(KERN_DEBUG " %3d %d %.4x %.4x\n",
960 ieee80211_frequency_to_channel(
961 band->channels[i].center_freq),
962 band->channels[i].center_freq,
963 band->channels[i].hw_value,
964 band->channels[i].flags);
965 printk(KERN_DEBUG " rates:\n");
966 for (i = 0; i < band->n_bitrates; i++)
967 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n",
968 band->bitrates[i].bitrate,
969 band->bitrates[i].hw_value,
970 band->bitrates[i].flags,
971 band->bitrates[i].hw_value_short);
972 }
973}
974
975static inline void
976ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
977 struct ath5k_rx_status *rs)
978{
979 struct ath5k_desc *ds = bf->desc;
980 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
981
982 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
983 ds, (unsigned long long)bf->daddr,
984 ds->ds_link, ds->ds_data,
985 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
986 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
987 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
988}
989
990void
991ath5k_debug_printrxbuffs(struct ath5k_hw *ah)
992{
993 struct ath5k_desc *ds;
994 struct ath5k_buf *bf;
995 struct ath5k_rx_status rs = {};
996 int status;
997
998 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
999 return;
1000
1001 printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
1002 ath5k_hw_get_rxdp(ah), ah->rxlink);
1003
1004 spin_lock_bh(&ah->rxbuflock);
1005 list_for_each_entry(bf, &ah->rxbuf, list) {
1006 ds = bf->desc;
1007 status = ah->ah_proc_rx_desc(ah, ds, &rs);
1008 if (!status)
1009 ath5k_debug_printrxbuf(bf, status == 0, &rs);
1010 }
1011 spin_unlock_bh(&ah->rxbuflock);
1012}
1013
1014void
1015ath5k_debug_printtxbuf(struct ath5k_hw *ah, struct ath5k_buf *bf)
1016{
1017 struct ath5k_desc *ds = bf->desc;
1018 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
1019 struct ath5k_tx_status ts = {};
1020 int done;
1021
1022 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
1023 return;
1024
1025 done = ah->ah_proc_tx_desc(ah, bf->desc, &ts);
1026
1027 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
1028 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
1029 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
1030 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
1031 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
1032 done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
1033}
1034
1035#endif /* ifdef CONFIG_ATH5K_DEBUG */
1/*
2 * Copyright (c) 2007-2008 Bruno Randolf <bruno@thinktube.com>
3 *
4 * This file is free software: you may copy, redistribute and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation, either version 2 of the License, or (at your
7 * option) any later version.
8 *
9 * This file is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 *
17 *
18 * This file incorporates work covered by the following copyright and
19 * permission notice:
20 *
21 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
22 * Copyright (c) 2004-2005 Atheros Communications, Inc.
23 * Copyright (c) 2006 Devicescape Software, Inc.
24 * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
25 * Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
26 *
27 * All rights reserved.
28 *
29 * Redistribution and use in source and binary forms, with or without
30 * modification, are permitted provided that the following conditions
31 * are met:
32 * 1. Redistributions of source code must retain the above copyright
33 * notice, this list of conditions and the following disclaimer,
34 * without modification.
35 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
36 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
37 * redistribution must be conditioned upon including a substantially
38 * similar Disclaimer requirement for further binary redistribution.
39 * 3. Neither the names of the above-listed copyright holders nor the names
40 * of any contributors may be used to endorse or promote products derived
41 * from this software without specific prior written permission.
42 *
43 * Alternatively, this software may be distributed under the terms of the
44 * GNU General Public License ("GPL") version 2 as published by the Free
45 * Software Foundation.
46 *
47 * NO WARRANTY
48 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
49 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
50 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
51 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
52 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
53 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
54 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
55 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
56 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
57 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
58 * THE POSSIBILITY OF SUCH DAMAGES.
59 */
60
61#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
62
63#include <linux/export.h>
64#include <linux/moduleparam.h>
65#include <linux/vmalloc.h>
66
67#include <linux/seq_file.h>
68#include <linux/list.h>
69#include "debug.h"
70#include "ath5k.h"
71#include "reg.h"
72#include "base.h"
73
74static unsigned int ath5k_debug;
75module_param_named(debug, ath5k_debug, uint, 0);
76
77
78/* debugfs: registers */
79
80struct reg {
81 const char *name;
82 int addr;
83};
84
85#define REG_STRUCT_INIT(r) { #r, r }
86
87/* just a few random registers, might want to add more */
88static const struct reg regs[] = {
89 REG_STRUCT_INIT(AR5K_CR),
90 REG_STRUCT_INIT(AR5K_RXDP),
91 REG_STRUCT_INIT(AR5K_CFG),
92 REG_STRUCT_INIT(AR5K_IER),
93 REG_STRUCT_INIT(AR5K_BCR),
94 REG_STRUCT_INIT(AR5K_RTSD0),
95 REG_STRUCT_INIT(AR5K_RTSD1),
96 REG_STRUCT_INIT(AR5K_TXCFG),
97 REG_STRUCT_INIT(AR5K_RXCFG),
98 REG_STRUCT_INIT(AR5K_RXJLA),
99 REG_STRUCT_INIT(AR5K_MIBC),
100 REG_STRUCT_INIT(AR5K_TOPS),
101 REG_STRUCT_INIT(AR5K_RXNOFRM),
102 REG_STRUCT_INIT(AR5K_TXNOFRM),
103 REG_STRUCT_INIT(AR5K_RPGTO),
104 REG_STRUCT_INIT(AR5K_RFCNT),
105 REG_STRUCT_INIT(AR5K_MISC),
106 REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT),
107 REG_STRUCT_INIT(AR5K_ISR),
108 REG_STRUCT_INIT(AR5K_PISR),
109 REG_STRUCT_INIT(AR5K_SISR0),
110 REG_STRUCT_INIT(AR5K_SISR1),
111 REG_STRUCT_INIT(AR5K_SISR2),
112 REG_STRUCT_INIT(AR5K_SISR3),
113 REG_STRUCT_INIT(AR5K_SISR4),
114 REG_STRUCT_INIT(AR5K_IMR),
115 REG_STRUCT_INIT(AR5K_PIMR),
116 REG_STRUCT_INIT(AR5K_SIMR0),
117 REG_STRUCT_INIT(AR5K_SIMR1),
118 REG_STRUCT_INIT(AR5K_SIMR2),
119 REG_STRUCT_INIT(AR5K_SIMR3),
120 REG_STRUCT_INIT(AR5K_SIMR4),
121 REG_STRUCT_INIT(AR5K_DCM_ADDR),
122 REG_STRUCT_INIT(AR5K_DCCFG),
123 REG_STRUCT_INIT(AR5K_CCFG),
124 REG_STRUCT_INIT(AR5K_CPC0),
125 REG_STRUCT_INIT(AR5K_CPC1),
126 REG_STRUCT_INIT(AR5K_CPC2),
127 REG_STRUCT_INIT(AR5K_CPC3),
128 REG_STRUCT_INIT(AR5K_CPCOVF),
129 REG_STRUCT_INIT(AR5K_RESET_CTL),
130 REG_STRUCT_INIT(AR5K_SLEEP_CTL),
131 REG_STRUCT_INIT(AR5K_INTPEND),
132 REG_STRUCT_INIT(AR5K_SFR),
133 REG_STRUCT_INIT(AR5K_PCICFG),
134 REG_STRUCT_INIT(AR5K_GPIOCR),
135 REG_STRUCT_INIT(AR5K_GPIODO),
136 REG_STRUCT_INIT(AR5K_SREV),
137};
138
139static void *reg_start(struct seq_file *seq, loff_t *pos)
140{
141 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;
142}
143
144static void reg_stop(struct seq_file *seq, void *p)
145{
146 /* nothing to do */
147}
148
149static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)
150{
151 ++*pos;
152 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;
153}
154
155static int reg_show(struct seq_file *seq, void *p)
156{
157 struct ath5k_hw *ah = seq->private;
158 struct reg *r = p;
159 seq_printf(seq, "%-25s0x%08x\n", r->name,
160 ath5k_hw_reg_read(ah, r->addr));
161 return 0;
162}
163
164static const struct seq_operations register_seq_ops = {
165 .start = reg_start,
166 .next = reg_next,
167 .stop = reg_stop,
168 .show = reg_show
169};
170
171static int open_file_registers(struct inode *inode, struct file *file)
172{
173 struct seq_file *s;
174 int res;
175 res = seq_open(file, ®ister_seq_ops);
176 if (res == 0) {
177 s = file->private_data;
178 s->private = inode->i_private;
179 }
180 return res;
181}
182
183static const struct file_operations fops_registers = {
184 .open = open_file_registers,
185 .read = seq_read,
186 .llseek = seq_lseek,
187 .release = seq_release,
188 .owner = THIS_MODULE,
189};
190
191
192/* debugfs: beacons */
193
194static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
195 size_t count, loff_t *ppos)
196{
197 struct ath5k_hw *ah = file->private_data;
198 char buf[500];
199 unsigned int len = 0;
200 unsigned int v;
201 u64 tsf;
202
203 v = ath5k_hw_reg_read(ah, AR5K_BEACON);
204 len += snprintf(buf + len, sizeof(buf) - len,
205 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
206 "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,
207 (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);
208
209 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n",
210 "AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP));
211
212 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n",
213 "AR5K_BEACON_CNT", ath5k_hw_reg_read(ah, AR5K_BEACON_CNT));
214
215 v = ath5k_hw_reg_read(ah, AR5K_TIMER0);
216 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
217 "AR5K_TIMER0 (TBTT)", v, v);
218
219 v = ath5k_hw_reg_read(ah, AR5K_TIMER1);
220 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
221 "AR5K_TIMER1 (DMA)", v, v >> 3);
222
223 v = ath5k_hw_reg_read(ah, AR5K_TIMER2);
224 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
225 "AR5K_TIMER2 (SWBA)", v, v >> 3);
226
227 v = ath5k_hw_reg_read(ah, AR5K_TIMER3);
228 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
229 "AR5K_TIMER3 (ATIM)", v, v);
230
231 tsf = ath5k_hw_get_tsf64(ah);
232 len += snprintf(buf + len, sizeof(buf) - len,
233 "TSF\t\t0x%016llx\tTU: %08x\n",
234 (unsigned long long)tsf, TSF_TO_TU(tsf));
235
236 if (len > sizeof(buf))
237 len = sizeof(buf);
238
239 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
240}
241
242static ssize_t write_file_beacon(struct file *file,
243 const char __user *userbuf,
244 size_t count, loff_t *ppos)
245{
246 struct ath5k_hw *ah = file->private_data;
247 char buf[20];
248
249 count = min_t(size_t, count, sizeof(buf) - 1);
250 if (copy_from_user(buf, userbuf, count))
251 return -EFAULT;
252
253 buf[count] = '\0';
254 if (strncmp(buf, "disable", 7) == 0) {
255 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
256 pr_info("debugfs disable beacons\n");
257 } else if (strncmp(buf, "enable", 6) == 0) {
258 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
259 pr_info("debugfs enable beacons\n");
260 }
261 return count;
262}
263
264static const struct file_operations fops_beacon = {
265 .read = read_file_beacon,
266 .write = write_file_beacon,
267 .open = simple_open,
268 .owner = THIS_MODULE,
269 .llseek = default_llseek,
270};
271
272
273/* debugfs: reset */
274
275static ssize_t write_file_reset(struct file *file,
276 const char __user *userbuf,
277 size_t count, loff_t *ppos)
278{
279 struct ath5k_hw *ah = file->private_data;
280 ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
281 ieee80211_queue_work(ah->hw, &ah->reset_work);
282 return count;
283}
284
285static const struct file_operations fops_reset = {
286 .write = write_file_reset,
287 .open = simple_open,
288 .owner = THIS_MODULE,
289 .llseek = noop_llseek,
290};
291
292
293/* debugfs: debug level */
294
295static const struct {
296 enum ath5k_debug_level level;
297 const char *name;
298 const char *desc;
299} dbg_info[] = {
300 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" },
301 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" },
302 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" },
303 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" },
304 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" },
305 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" },
306 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" },
307 { ATH5K_DEBUG_LED, "led", "LED management" },
308 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" },
309 { ATH5K_DEBUG_DMA, "dma", "dma start/stop" },
310 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" },
311 { ATH5K_DEBUG_DESC, "desc", "descriptor chains" },
312 { ATH5K_DEBUG_ANY, "all", "show all debug levels" },
313};
314
315static ssize_t read_file_debug(struct file *file, char __user *user_buf,
316 size_t count, loff_t *ppos)
317{
318 struct ath5k_hw *ah = file->private_data;
319 char buf[700];
320 unsigned int len = 0;
321 unsigned int i;
322
323 len += snprintf(buf + len, sizeof(buf) - len,
324 "DEBUG LEVEL: 0x%08x\n\n", ah->debug.level);
325
326 for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
327 len += snprintf(buf + len, sizeof(buf) - len,
328 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
329 ah->debug.level & dbg_info[i].level ? '+' : ' ',
330 dbg_info[i].level, dbg_info[i].desc);
331 }
332 len += snprintf(buf + len, sizeof(buf) - len,
333 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
334 ah->debug.level == dbg_info[i].level ? '+' : ' ',
335 dbg_info[i].level, dbg_info[i].desc);
336
337 if (len > sizeof(buf))
338 len = sizeof(buf);
339
340 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
341}
342
343static ssize_t write_file_debug(struct file *file,
344 const char __user *userbuf,
345 size_t count, loff_t *ppos)
346{
347 struct ath5k_hw *ah = file->private_data;
348 unsigned int i;
349 char buf[20];
350
351 count = min_t(size_t, count, sizeof(buf) - 1);
352 if (copy_from_user(buf, userbuf, count))
353 return -EFAULT;
354
355 buf[count] = '\0';
356 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
357 if (strncmp(buf, dbg_info[i].name,
358 strlen(dbg_info[i].name)) == 0) {
359 ah->debug.level ^= dbg_info[i].level; /* toggle bit */
360 break;
361 }
362 }
363 return count;
364}
365
366static const struct file_operations fops_debug = {
367 .read = read_file_debug,
368 .write = write_file_debug,
369 .open = simple_open,
370 .owner = THIS_MODULE,
371 .llseek = default_llseek,
372};
373
374
375/* debugfs: antenna */
376
377static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
378 size_t count, loff_t *ppos)
379{
380 struct ath5k_hw *ah = file->private_data;
381 char buf[700];
382 unsigned int len = 0;
383 unsigned int i;
384 unsigned int v;
385
386 len += snprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n",
387 ah->ah_ant_mode);
388 len += snprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n",
389 ah->ah_def_ant);
390 len += snprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n",
391 ah->ah_tx_ant);
392
393 len += snprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n");
394 for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
395 len += snprintf(buf + len, sizeof(buf) - len,
396 "[antenna %d]\t%d\t%d\n",
397 i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]);
398 }
399 len += snprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n",
400 ah->stats.antenna_rx[0], ah->stats.antenna_tx[0]);
401
402 v = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA);
403 len += snprintf(buf + len, sizeof(buf) - len,
404 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
405
406 v = ath5k_hw_reg_read(ah, AR5K_STA_ID1);
407 len += snprintf(buf + len, sizeof(buf) - len,
408 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
409 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
410 len += snprintf(buf + len, sizeof(buf) - len,
411 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
412 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
413 len += snprintf(buf + len, sizeof(buf) - len,
414 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
415 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
416 len += snprintf(buf + len, sizeof(buf) - len,
417 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
418 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
419
420 v = ath5k_hw_reg_read(ah, AR5K_PHY_AGCCTL);
421 len += snprintf(buf + len, sizeof(buf) - len,
422 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
423 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
424
425 v = ath5k_hw_reg_read(ah, AR5K_PHY_RESTART);
426 len += snprintf(buf + len, sizeof(buf) - len,
427 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
428 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
429
430 v = ath5k_hw_reg_read(ah, AR5K_PHY_FAST_ANT_DIV);
431 len += snprintf(buf + len, sizeof(buf) - len,
432 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
433 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
434
435 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
436 len += snprintf(buf + len, sizeof(buf) - len,
437 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
438 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
439 len += snprintf(buf + len, sizeof(buf) - len,
440 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
441
442 if (len > sizeof(buf))
443 len = sizeof(buf);
444
445 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
446}
447
448static ssize_t write_file_antenna(struct file *file,
449 const char __user *userbuf,
450 size_t count, loff_t *ppos)
451{
452 struct ath5k_hw *ah = file->private_data;
453 unsigned int i;
454 char buf[20];
455
456 count = min_t(size_t, count, sizeof(buf) - 1);
457 if (copy_from_user(buf, userbuf, count))
458 return -EFAULT;
459
460 buf[count] = '\0';
461 if (strncmp(buf, "diversity", 9) == 0) {
462 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT);
463 pr_info("debug: enable diversity\n");
464 } else if (strncmp(buf, "fixed-a", 7) == 0) {
465 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A);
466 pr_info("debug: fixed antenna A\n");
467 } else if (strncmp(buf, "fixed-b", 7) == 0) {
468 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B);
469 pr_info("debug: fixed antenna B\n");
470 } else if (strncmp(buf, "clear", 5) == 0) {
471 for (i = 0; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
472 ah->stats.antenna_rx[i] = 0;
473 ah->stats.antenna_tx[i] = 0;
474 }
475 pr_info("debug: cleared antenna stats\n");
476 }
477 return count;
478}
479
480static const struct file_operations fops_antenna = {
481 .read = read_file_antenna,
482 .write = write_file_antenna,
483 .open = simple_open,
484 .owner = THIS_MODULE,
485 .llseek = default_llseek,
486};
487
488/* debugfs: misc */
489
490static ssize_t read_file_misc(struct file *file, char __user *user_buf,
491 size_t count, loff_t *ppos)
492{
493 struct ath5k_hw *ah = file->private_data;
494 char buf[700];
495 unsigned int len = 0;
496 u32 filt = ath5k_hw_get_rx_filter(ah);
497
498 len += snprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n",
499 ah->bssidmask);
500 len += snprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ",
501 filt);
502 if (filt & AR5K_RX_FILTER_UCAST)
503 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
504 if (filt & AR5K_RX_FILTER_MCAST)
505 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
506 if (filt & AR5K_RX_FILTER_BCAST)
507 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
508 if (filt & AR5K_RX_FILTER_CONTROL)
509 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
510 if (filt & AR5K_RX_FILTER_BEACON)
511 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
512 if (filt & AR5K_RX_FILTER_PROM)
513 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
514 if (filt & AR5K_RX_FILTER_XRPOLL)
515 len += snprintf(buf + len, sizeof(buf) - len, " XRPOLL");
516 if (filt & AR5K_RX_FILTER_PROBEREQ)
517 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
518 if (filt & AR5K_RX_FILTER_PHYERR_5212)
519 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR-5212");
520 if (filt & AR5K_RX_FILTER_RADARERR_5212)
521 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5212");
522 if (filt & AR5K_RX_FILTER_PHYERR_5211)
523 snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211");
524 if (filt & AR5K_RX_FILTER_RADARERR_5211)
525 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5211");
526
527 len += snprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n",
528 ath_opmode_to_string(ah->opmode), ah->opmode);
529
530 if (len > sizeof(buf))
531 len = sizeof(buf);
532
533 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
534}
535
536static const struct file_operations fops_misc = {
537 .read = read_file_misc,
538 .open = simple_open,
539 .owner = THIS_MODULE,
540};
541
542
543/* debugfs: frameerrors */
544
545static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
546 size_t count, loff_t *ppos)
547{
548 struct ath5k_hw *ah = file->private_data;
549 struct ath5k_statistics *st = &ah->stats;
550 char buf[700];
551 unsigned int len = 0;
552 int i;
553
554 len += snprintf(buf + len, sizeof(buf) - len,
555 "RX\n---------------------\n");
556 len += snprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n",
557 st->rxerr_crc,
558 st->rx_all_count > 0 ?
559 st->rxerr_crc * 100 / st->rx_all_count : 0);
560 len += snprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n",
561 st->rxerr_phy,
562 st->rx_all_count > 0 ?
563 st->rxerr_phy * 100 / st->rx_all_count : 0);
564 for (i = 0; i < 32; i++) {
565 if (st->rxerr_phy_code[i])
566 len += snprintf(buf + len, sizeof(buf) - len,
567 " phy_err[%u]\t%u\n",
568 i, st->rxerr_phy_code[i]);
569 }
570
571 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
572 st->rxerr_fifo,
573 st->rx_all_count > 0 ?
574 st->rxerr_fifo * 100 / st->rx_all_count : 0);
575 len += snprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n",
576 st->rxerr_decrypt,
577 st->rx_all_count > 0 ?
578 st->rxerr_decrypt * 100 / st->rx_all_count : 0);
579 len += snprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n",
580 st->rxerr_mic,
581 st->rx_all_count > 0 ?
582 st->rxerr_mic * 100 / st->rx_all_count : 0);
583 len += snprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n",
584 st->rxerr_proc,
585 st->rx_all_count > 0 ?
586 st->rxerr_proc * 100 / st->rx_all_count : 0);
587 len += snprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n",
588 st->rxerr_jumbo,
589 st->rx_all_count > 0 ?
590 st->rxerr_jumbo * 100 / st->rx_all_count : 0);
591 len += snprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n",
592 st->rx_all_count);
593 len += snprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n",
594 st->rx_bytes_count);
595
596 len += snprintf(buf + len, sizeof(buf) - len,
597 "\nTX\n---------------------\n");
598 len += snprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n",
599 st->txerr_retry,
600 st->tx_all_count > 0 ?
601 st->txerr_retry * 100 / st->tx_all_count : 0);
602 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
603 st->txerr_fifo,
604 st->tx_all_count > 0 ?
605 st->txerr_fifo * 100 / st->tx_all_count : 0);
606 len += snprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n",
607 st->txerr_filt,
608 st->tx_all_count > 0 ?
609 st->txerr_filt * 100 / st->tx_all_count : 0);
610 len += snprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n",
611 st->tx_all_count);
612 len += snprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n",
613 st->tx_bytes_count);
614
615 if (len > sizeof(buf))
616 len = sizeof(buf);
617
618 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
619}
620
621static ssize_t write_file_frameerrors(struct file *file,
622 const char __user *userbuf,
623 size_t count, loff_t *ppos)
624{
625 struct ath5k_hw *ah = file->private_data;
626 struct ath5k_statistics *st = &ah->stats;
627 char buf[20];
628
629 count = min_t(size_t, count, sizeof(buf) - 1);
630 if (copy_from_user(buf, userbuf, count))
631 return -EFAULT;
632
633 buf[count] = '\0';
634 if (strncmp(buf, "clear", 5) == 0) {
635 st->rxerr_crc = 0;
636 st->rxerr_phy = 0;
637 st->rxerr_fifo = 0;
638 st->rxerr_decrypt = 0;
639 st->rxerr_mic = 0;
640 st->rxerr_proc = 0;
641 st->rxerr_jumbo = 0;
642 st->rx_all_count = 0;
643 st->txerr_retry = 0;
644 st->txerr_fifo = 0;
645 st->txerr_filt = 0;
646 st->tx_all_count = 0;
647 pr_info("debug: cleared frameerrors stats\n");
648 }
649 return count;
650}
651
652static const struct file_operations fops_frameerrors = {
653 .read = read_file_frameerrors,
654 .write = write_file_frameerrors,
655 .open = simple_open,
656 .owner = THIS_MODULE,
657 .llseek = default_llseek,
658};
659
660
661/* debugfs: ani */
662
663static ssize_t read_file_ani(struct file *file, char __user *user_buf,
664 size_t count, loff_t *ppos)
665{
666 struct ath5k_hw *ah = file->private_data;
667 struct ath5k_statistics *st = &ah->stats;
668 struct ath5k_ani_state *as = &ah->ani_state;
669
670 char buf[700];
671 unsigned int len = 0;
672
673 len += snprintf(buf + len, sizeof(buf) - len,
674 "HW has PHY error counters:\t%s\n",
675 ah->ah_capabilities.cap_has_phyerr_counters ?
676 "yes" : "no");
677 len += snprintf(buf + len, sizeof(buf) - len,
678 "HW max spur immunity level:\t%d\n",
679 as->max_spur_level);
680 len += snprintf(buf + len, sizeof(buf) - len,
681 "\nANI state\n--------------------------------------------\n");
682 len += snprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t");
683 switch (as->ani_mode) {
684 case ATH5K_ANI_MODE_OFF:
685 len += snprintf(buf + len, sizeof(buf) - len, "OFF\n");
686 break;
687 case ATH5K_ANI_MODE_MANUAL_LOW:
688 len += snprintf(buf + len, sizeof(buf) - len,
689 "MANUAL LOW\n");
690 break;
691 case ATH5K_ANI_MODE_MANUAL_HIGH:
692 len += snprintf(buf + len, sizeof(buf) - len,
693 "MANUAL HIGH\n");
694 break;
695 case ATH5K_ANI_MODE_AUTO:
696 len += snprintf(buf + len, sizeof(buf) - len, "AUTO\n");
697 break;
698 default:
699 len += snprintf(buf + len, sizeof(buf) - len,
700 "??? (not good)\n");
701 break;
702 }
703 len += snprintf(buf + len, sizeof(buf) - len,
704 "noise immunity level:\t\t%d\n",
705 as->noise_imm_level);
706 len += snprintf(buf + len, sizeof(buf) - len,
707 "spur immunity level:\t\t%d\n",
708 as->spur_level);
709 len += snprintf(buf + len, sizeof(buf) - len,
710 "firstep level:\t\t\t%d\n",
711 as->firstep_level);
712 len += snprintf(buf + len, sizeof(buf) - len,
713 "OFDM weak signal detection:\t%s\n",
714 as->ofdm_weak_sig ? "on" : "off");
715 len += snprintf(buf + len, sizeof(buf) - len,
716 "CCK weak signal detection:\t%s\n",
717 as->cck_weak_sig ? "on" : "off");
718
719 len += snprintf(buf + len, sizeof(buf) - len,
720 "\nMIB INTERRUPTS:\t\t%u\n",
721 st->mib_intr);
722 len += snprintf(buf + len, sizeof(buf) - len,
723 "beacon RSSI average:\t%d\n",
724 (int)ewma_beacon_rssi_read(&ah->ah_beacon_rssi_avg));
725
726#define CC_PRINT(_struct, _field) \
727 _struct._field, \
728 _struct.cycles > 0 ? \
729 _struct._field * 100 / _struct.cycles : 0
730
731 len += snprintf(buf + len, sizeof(buf) - len,
732 "profcnt tx\t\t%u\t(%d%%)\n",
733 CC_PRINT(as->last_cc, tx_frame));
734 len += snprintf(buf + len, sizeof(buf) - len,
735 "profcnt rx\t\t%u\t(%d%%)\n",
736 CC_PRINT(as->last_cc, rx_frame));
737 len += snprintf(buf + len, sizeof(buf) - len,
738 "profcnt busy\t\t%u\t(%d%%)\n",
739 CC_PRINT(as->last_cc, rx_busy));
740#undef CC_PRINT
741 len += snprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n",
742 as->last_cc.cycles);
743 len += snprintf(buf + len, sizeof(buf) - len,
744 "listen time\t\t%d\tlast: %d\n",
745 as->listen_time, as->last_listen);
746 len += snprintf(buf + len, sizeof(buf) - len,
747 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
748 as->ofdm_errors, as->last_ofdm_errors,
749 as->sum_ofdm_errors);
750 len += snprintf(buf + len, sizeof(buf) - len,
751 "CCK errors\t\t%u\tlast: %u\tsum: %u\n",
752 as->cck_errors, as->last_cck_errors,
753 as->sum_cck_errors);
754 len += snprintf(buf + len, sizeof(buf) - len,
755 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
756 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1),
757 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
758 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1)));
759 len += snprintf(buf + len, sizeof(buf) - len,
760 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
761 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2),
762 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
763 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2)));
764
765 if (len > sizeof(buf))
766 len = sizeof(buf);
767
768 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
769}
770
771static ssize_t write_file_ani(struct file *file,
772 const char __user *userbuf,
773 size_t count, loff_t *ppos)
774{
775 struct ath5k_hw *ah = file->private_data;
776 char buf[20];
777
778 count = min_t(size_t, count, sizeof(buf) - 1);
779 if (copy_from_user(buf, userbuf, count))
780 return -EFAULT;
781
782 buf[count] = '\0';
783 if (strncmp(buf, "sens-low", 8) == 0) {
784 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_HIGH);
785 } else if (strncmp(buf, "sens-high", 9) == 0) {
786 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_LOW);
787 } else if (strncmp(buf, "ani-off", 7) == 0) {
788 ath5k_ani_init(ah, ATH5K_ANI_MODE_OFF);
789 } else if (strncmp(buf, "ani-on", 6) == 0) {
790 ath5k_ani_init(ah, ATH5K_ANI_MODE_AUTO);
791 } else if (strncmp(buf, "noise-low", 9) == 0) {
792 ath5k_ani_set_noise_immunity_level(ah, 0);
793 } else if (strncmp(buf, "noise-high", 10) == 0) {
794 ath5k_ani_set_noise_immunity_level(ah,
795 ATH5K_ANI_MAX_NOISE_IMM_LVL);
796 } else if (strncmp(buf, "spur-low", 8) == 0) {
797 ath5k_ani_set_spur_immunity_level(ah, 0);
798 } else if (strncmp(buf, "spur-high", 9) == 0) {
799 ath5k_ani_set_spur_immunity_level(ah,
800 ah->ani_state.max_spur_level);
801 } else if (strncmp(buf, "fir-low", 7) == 0) {
802 ath5k_ani_set_firstep_level(ah, 0);
803 } else if (strncmp(buf, "fir-high", 8) == 0) {
804 ath5k_ani_set_firstep_level(ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
805 } else if (strncmp(buf, "ofdm-off", 8) == 0) {
806 ath5k_ani_set_ofdm_weak_signal_detection(ah, false);
807 } else if (strncmp(buf, "ofdm-on", 7) == 0) {
808 ath5k_ani_set_ofdm_weak_signal_detection(ah, true);
809 } else if (strncmp(buf, "cck-off", 7) == 0) {
810 ath5k_ani_set_cck_weak_signal_detection(ah, false);
811 } else if (strncmp(buf, "cck-on", 6) == 0) {
812 ath5k_ani_set_cck_weak_signal_detection(ah, true);
813 }
814 return count;
815}
816
817static const struct file_operations fops_ani = {
818 .read = read_file_ani,
819 .write = write_file_ani,
820 .open = simple_open,
821 .owner = THIS_MODULE,
822 .llseek = default_llseek,
823};
824
825
826/* debugfs: queues etc */
827
828static ssize_t read_file_queue(struct file *file, char __user *user_buf,
829 size_t count, loff_t *ppos)
830{
831 struct ath5k_hw *ah = file->private_data;
832 char buf[700];
833 unsigned int len = 0;
834
835 struct ath5k_txq *txq;
836 struct ath5k_buf *bf, *bf0;
837 int i, n;
838
839 len += snprintf(buf + len, sizeof(buf) - len,
840 "available txbuffers: %d\n", ah->txbuf_len);
841
842 for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) {
843 txq = &ah->txqs[i];
844
845 len += snprintf(buf + len, sizeof(buf) - len,
846 "%02d: %ssetup\n", i, txq->setup ? "" : "not ");
847
848 if (!txq->setup)
849 continue;
850
851 n = 0;
852 spin_lock_bh(&txq->lock);
853 list_for_each_entry_safe(bf, bf0, &txq->q, list)
854 n++;
855 spin_unlock_bh(&txq->lock);
856
857 len += snprintf(buf + len, sizeof(buf) - len,
858 " len: %d bufs: %d\n", txq->txq_len, n);
859 len += snprintf(buf + len, sizeof(buf) - len,
860 " stuck: %d\n", txq->txq_stuck);
861 }
862
863 if (len > sizeof(buf))
864 len = sizeof(buf);
865
866 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
867}
868
869static ssize_t write_file_queue(struct file *file,
870 const char __user *userbuf,
871 size_t count, loff_t *ppos)
872{
873 struct ath5k_hw *ah = file->private_data;
874 char buf[20];
875
876 count = min_t(size_t, count, sizeof(buf) - 1);
877 if (copy_from_user(buf, userbuf, count))
878 return -EFAULT;
879
880 buf[count] = '\0';
881 if (strncmp(buf, "start", 5) == 0)
882 ieee80211_wake_queues(ah->hw);
883 else if (strncmp(buf, "stop", 4) == 0)
884 ieee80211_stop_queues(ah->hw);
885
886 return count;
887}
888
889
890static const struct file_operations fops_queue = {
891 .read = read_file_queue,
892 .write = write_file_queue,
893 .open = simple_open,
894 .owner = THIS_MODULE,
895 .llseek = default_llseek,
896};
897
898/* debugfs: eeprom */
899
900struct eeprom_private {
901 u16 *buf;
902 int len;
903};
904
905static int open_file_eeprom(struct inode *inode, struct file *file)
906{
907 struct eeprom_private *ep;
908 struct ath5k_hw *ah = inode->i_private;
909 bool res;
910 int i, ret;
911 u32 eesize; /* NB: in 16-bit words */
912 u16 val, *buf;
913
914 /* Get eeprom size */
915
916 res = ath5k_hw_nvram_read(ah, AR5K_EEPROM_SIZE_UPPER, &val);
917 if (!res)
918 return -EACCES;
919
920 if (val == 0) {
921 eesize = AR5K_EEPROM_INFO_MAX + AR5K_EEPROM_INFO_BASE;
922 } else {
923 eesize = (val & AR5K_EEPROM_SIZE_UPPER_MASK) <<
924 AR5K_EEPROM_SIZE_ENDLOC_SHIFT;
925 ath5k_hw_nvram_read(ah, AR5K_EEPROM_SIZE_LOWER, &val);
926 eesize = eesize | val;
927 }
928
929 if (eesize > 4096)
930 return -EINVAL;
931
932 /* Create buffer and read in eeprom */
933
934 buf = vmalloc(eesize * 2);
935 if (!buf) {
936 ret = -ENOMEM;
937 goto err;
938 }
939
940 for (i = 0; i < eesize; ++i) {
941 if (!ath5k_hw_nvram_read(ah, i, &val)) {
942 ret = -EIO;
943 goto freebuf;
944 }
945 buf[i] = val;
946 }
947
948 /* Create private struct and assign to file */
949
950 ep = kmalloc(sizeof(*ep), GFP_KERNEL);
951 if (!ep) {
952 ret = -ENOMEM;
953 goto freebuf;
954 }
955
956 ep->buf = buf;
957 ep->len = eesize * 2;
958
959 file->private_data = (void *)ep;
960
961 return 0;
962
963freebuf:
964 vfree(buf);
965err:
966 return ret;
967
968}
969
970static ssize_t read_file_eeprom(struct file *file, char __user *user_buf,
971 size_t count, loff_t *ppos)
972{
973 struct eeprom_private *ep = file->private_data;
974
975 return simple_read_from_buffer(user_buf, count, ppos, ep->buf, ep->len);
976}
977
978static int release_file_eeprom(struct inode *inode, struct file *file)
979{
980 struct eeprom_private *ep = file->private_data;
981
982 vfree(ep->buf);
983 kfree(ep);
984
985 return 0;
986}
987
988static const struct file_operations fops_eeprom = {
989 .open = open_file_eeprom,
990 .read = read_file_eeprom,
991 .release = release_file_eeprom,
992 .owner = THIS_MODULE,
993};
994
995
996void
997ath5k_debug_init_device(struct ath5k_hw *ah)
998{
999 struct dentry *phydir;
1000
1001 ah->debug.level = ath5k_debug;
1002
1003 phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir);
1004 if (!phydir)
1005 return;
1006
1007 debugfs_create_file("debug", 0600, phydir, ah, &fops_debug);
1008 debugfs_create_file("registers", 0400, phydir, ah, &fops_registers);
1009 debugfs_create_file("beacon", 0600, phydir, ah, &fops_beacon);
1010 debugfs_create_file("reset", 0200, phydir, ah, &fops_reset);
1011 debugfs_create_file("antenna", 0600, phydir, ah, &fops_antenna);
1012 debugfs_create_file("misc", 0400, phydir, ah, &fops_misc);
1013 debugfs_create_file("eeprom", 0400, phydir, ah, &fops_eeprom);
1014 debugfs_create_file("frameerrors", 0600, phydir, ah, &fops_frameerrors);
1015 debugfs_create_file("ani", 0600, phydir, ah, &fops_ani);
1016 debugfs_create_file("queue", 0600, phydir, ah, &fops_queue);
1017 debugfs_create_bool("32khz_clock", 0600, phydir,
1018 &ah->ah_use_32khz_clock);
1019}
1020
1021/* functions used in other places */
1022
1023void
1024ath5k_debug_dump_bands(struct ath5k_hw *ah)
1025{
1026 unsigned int b, i;
1027
1028 if (likely(!(ah->debug.level & ATH5K_DEBUG_DUMPBANDS)))
1029 return;
1030
1031 BUG_ON(!ah->sbands);
1032
1033 for (b = 0; b < NUM_NL80211_BANDS; b++) {
1034 struct ieee80211_supported_band *band = &ah->sbands[b];
1035 char bname[6];
1036 switch (band->band) {
1037 case NL80211_BAND_2GHZ:
1038 strcpy(bname, "2 GHz");
1039 break;
1040 case NL80211_BAND_5GHZ:
1041 strcpy(bname, "5 GHz");
1042 break;
1043 default:
1044 printk(KERN_DEBUG "Band not supported: %d\n",
1045 band->band);
1046 return;
1047 }
1048 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
1049 band->n_channels, band->n_bitrates);
1050 printk(KERN_DEBUG " channels:\n");
1051 for (i = 0; i < band->n_channels; i++)
1052 printk(KERN_DEBUG " %3d %d %.4x %.4x\n",
1053 ieee80211_frequency_to_channel(
1054 band->channels[i].center_freq),
1055 band->channels[i].center_freq,
1056 band->channels[i].hw_value,
1057 band->channels[i].flags);
1058 printk(KERN_DEBUG " rates:\n");
1059 for (i = 0; i < band->n_bitrates; i++)
1060 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n",
1061 band->bitrates[i].bitrate,
1062 band->bitrates[i].hw_value,
1063 band->bitrates[i].flags,
1064 band->bitrates[i].hw_value_short);
1065 }
1066}
1067
1068static inline void
1069ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
1070 struct ath5k_rx_status *rs)
1071{
1072 struct ath5k_desc *ds = bf->desc;
1073 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
1074
1075 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
1076 ds, (unsigned long long)bf->daddr,
1077 ds->ds_link, ds->ds_data,
1078 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
1079 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
1080 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
1081}
1082
1083void
1084ath5k_debug_printrxbuffs(struct ath5k_hw *ah)
1085{
1086 struct ath5k_desc *ds;
1087 struct ath5k_buf *bf;
1088 struct ath5k_rx_status rs = {};
1089 int status;
1090
1091 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
1092 return;
1093
1094 printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
1095 ath5k_hw_get_rxdp(ah), ah->rxlink);
1096
1097 spin_lock_bh(&ah->rxbuflock);
1098 list_for_each_entry(bf, &ah->rxbuf, list) {
1099 ds = bf->desc;
1100 status = ah->ah_proc_rx_desc(ah, ds, &rs);
1101 if (!status)
1102 ath5k_debug_printrxbuf(bf, status == 0, &rs);
1103 }
1104 spin_unlock_bh(&ah->rxbuflock);
1105}
1106
1107void
1108ath5k_debug_printtxbuf(struct ath5k_hw *ah, struct ath5k_buf *bf)
1109{
1110 struct ath5k_desc *ds = bf->desc;
1111 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
1112 struct ath5k_tx_status ts = {};
1113 int done;
1114
1115 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
1116 return;
1117
1118 done = ah->ah_proc_tx_desc(ah, bf->desc, &ts);
1119
1120 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
1121 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
1122 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
1123 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
1124 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
1125 done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
1126}