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