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[deliverable/linux.git] / drivers / net / wireless / ath / ath5k / debug.c
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
64 static unsigned int ath5k_debug;
65 module_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
74 static 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
83 struct 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 */
91 static 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
142 static void *reg_start(struct seq_file *seq, loff_t *pos)
143 {
144 return *pos < ARRAY_SIZE(regs) ? (void *)&regs[*pos] : NULL;
145 }
146
147 static void reg_stop(struct seq_file *seq, void *p)
148 {
149 /* nothing to do */
150 }
151
152 static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)
153 {
154 ++*pos;
155 return *pos < ARRAY_SIZE(regs) ? (void *)&regs[*pos] : NULL;
156 }
157
158 static int reg_show(struct seq_file *seq, void *p)
159 {
160 struct ath5k_softc *sc = seq->private;
161 struct reg *r = p;
162 seq_printf(seq, "%-25s0x%08x\n", r->name,
163 ath5k_hw_reg_read(sc->ah, r->addr));
164 return 0;
165 }
166
167 static 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
174 static int open_file_registers(struct inode *inode, struct file *file)
175 {
176 struct seq_file *s;
177 int res;
178 res = seq_open(file, &register_seq_ops);
179 if (res == 0) {
180 s = file->private_data;
181 s->private = inode->i_private;
182 }
183 return res;
184 }
185
186 static 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
197 static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
198 size_t count, loff_t *ppos)
199 {
200 struct ath5k_softc *sc = file->private_data;
201 struct ath5k_hw *ah = sc->ah;
202 char buf[500];
203 unsigned int len = 0;
204 unsigned int v;
205 u64 tsf;
206
207 v = ath5k_hw_reg_read(sc->ah, AR5K_BEACON);
208 len += snprintf(buf + len, sizeof(buf) - len,
209 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
210 "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,
211 (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);
212
213 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n",
214 "AR5K_LAST_TSTP", ath5k_hw_reg_read(sc->ah, AR5K_LAST_TSTP));
215
216 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n",
217 "AR5K_BEACON_CNT", ath5k_hw_reg_read(sc->ah, AR5K_BEACON_CNT));
218
219 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER0);
220 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
221 "AR5K_TIMER0 (TBTT)", v, v);
222
223 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER1);
224 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
225 "AR5K_TIMER1 (DMA)", v, v >> 3);
226
227 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER2);
228 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
229 "AR5K_TIMER2 (SWBA)", v, v >> 3);
230
231 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER3);
232 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
233 "AR5K_TIMER3 (ATIM)", v, v);
234
235 tsf = ath5k_hw_get_tsf64(sc->ah);
236 len += snprintf(buf + len, sizeof(buf) - len,
237 "TSF\t\t0x%016llx\tTU: %08x\n",
238 (unsigned long long)tsf, TSF_TO_TU(tsf));
239
240 if (len > sizeof(buf))
241 len = sizeof(buf);
242
243 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
244 }
245
246 static ssize_t write_file_beacon(struct file *file,
247 const char __user *userbuf,
248 size_t count, loff_t *ppos)
249 {
250 struct ath5k_softc *sc = file->private_data;
251 struct ath5k_hw *ah = sc->ah;
252 char buf[20];
253
254 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
255 return -EFAULT;
256
257 if (strncmp(buf, "disable", 7) == 0) {
258 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
259 printk(KERN_INFO "debugfs disable beacons\n");
260 } else if (strncmp(buf, "enable", 6) == 0) {
261 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
262 printk(KERN_INFO "debugfs enable beacons\n");
263 }
264 return count;
265 }
266
267 static const struct file_operations fops_beacon = {
268 .read = read_file_beacon,
269 .write = write_file_beacon,
270 .open = ath5k_debugfs_open,
271 .owner = THIS_MODULE,
272 .llseek = default_llseek,
273 };
274
275
276 /* debugfs: reset */
277
278 static ssize_t write_file_reset(struct file *file,
279 const char __user *userbuf,
280 size_t count, loff_t *ppos)
281 {
282 struct ath5k_softc *sc = file->private_data;
283 ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
284 ieee80211_queue_work(sc->hw, &sc->reset_work);
285 return count;
286 }
287
288 static const struct file_operations fops_reset = {
289 .write = write_file_reset,
290 .open = ath5k_debugfs_open,
291 .owner = THIS_MODULE,
292 .llseek = noop_llseek,
293 };
294
295
296 /* debugfs: debug level */
297
298 static const struct {
299 enum ath5k_debug_level level;
300 const char *name;
301 const char *desc;
302 } dbg_info[] = {
303 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" },
304 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" },
305 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" },
306 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" },
307 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" },
308 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" },
309 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" },
310 { ATH5K_DEBUG_LED, "led", "LED management" },
311 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" },
312 { ATH5K_DEBUG_DMA, "dma", "dma start/stop" },
313 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" },
314 { ATH5K_DEBUG_DESC, "desc", "descriptor chains" },
315 { ATH5K_DEBUG_ANY, "all", "show all debug levels" },
316 };
317
318 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
319 size_t count, loff_t *ppos)
320 {
321 struct ath5k_softc *sc = file->private_data;
322 char buf[700];
323 unsigned int len = 0;
324 unsigned int i;
325
326 len += snprintf(buf + len, sizeof(buf) - len,
327 "DEBUG LEVEL: 0x%08x\n\n", sc->debug.level);
328
329 for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
330 len += snprintf(buf + len, sizeof(buf) - len,
331 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
332 sc->debug.level & dbg_info[i].level ? '+' : ' ',
333 dbg_info[i].level, dbg_info[i].desc);
334 }
335 len += snprintf(buf + len, sizeof(buf) - len,
336 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
337 sc->debug.level == dbg_info[i].level ? '+' : ' ',
338 dbg_info[i].level, dbg_info[i].desc);
339
340 if (len > sizeof(buf))
341 len = sizeof(buf);
342
343 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
344 }
345
346 static ssize_t write_file_debug(struct file *file,
347 const char __user *userbuf,
348 size_t count, loff_t *ppos)
349 {
350 struct ath5k_softc *sc = file->private_data;
351 unsigned int i;
352 char buf[20];
353
354 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
355 return -EFAULT;
356
357 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
358 if (strncmp(buf, dbg_info[i].name,
359 strlen(dbg_info[i].name)) == 0) {
360 sc->debug.level ^= dbg_info[i].level; /* toggle bit */
361 break;
362 }
363 }
364 return count;
365 }
366
367 static const struct file_operations fops_debug = {
368 .read = read_file_debug,
369 .write = write_file_debug,
370 .open = ath5k_debugfs_open,
371 .owner = THIS_MODULE,
372 .llseek = default_llseek,
373 };
374
375
376 /* debugfs: antenna */
377
378 static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
379 size_t count, loff_t *ppos)
380 {
381 struct ath5k_softc *sc = file->private_data;
382 char buf[700];
383 unsigned int len = 0;
384 unsigned int i;
385 unsigned int v;
386
387 len += snprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n",
388 sc->ah->ah_ant_mode);
389 len += snprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n",
390 sc->ah->ah_def_ant);
391 len += snprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n",
392 sc->ah->ah_tx_ant);
393
394 len += snprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n");
395 for (i = 1; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) {
396 len += snprintf(buf + len, sizeof(buf) - len,
397 "[antenna %d]\t%d\t%d\n",
398 i, sc->stats.antenna_rx[i], sc->stats.antenna_tx[i]);
399 }
400 len += snprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n",
401 sc->stats.antenna_rx[0], sc->stats.antenna_tx[0]);
402
403 v = ath5k_hw_reg_read(sc->ah, AR5K_DEFAULT_ANTENNA);
404 len += snprintf(buf + len, sizeof(buf) - len,
405 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
406
407 v = ath5k_hw_reg_read(sc->ah, AR5K_STA_ID1);
408 len += snprintf(buf + len, sizeof(buf) - len,
409 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
410 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
411 len += snprintf(buf + len, sizeof(buf) - len,
412 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
413 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
414 len += snprintf(buf + len, sizeof(buf) - len,
415 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
416 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
417 len += snprintf(buf + len, sizeof(buf) - len,
418 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
419 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
420
421 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_AGCCTL);
422 len += snprintf(buf + len, sizeof(buf) - len,
423 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
424 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
425
426 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_RESTART);
427 len += snprintf(buf + len, sizeof(buf) - len,
428 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
429 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
430
431 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_FAST_ANT_DIV);
432 len += snprintf(buf + len, sizeof(buf) - len,
433 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
434 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
435
436 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
437 len += snprintf(buf + len, sizeof(buf) - len,
438 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
439 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
440 len += snprintf(buf + len, sizeof(buf) - len,
441 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
442
443 if (len > sizeof(buf))
444 len = sizeof(buf);
445
446 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
447 }
448
449 static ssize_t write_file_antenna(struct file *file,
450 const char __user *userbuf,
451 size_t count, loff_t *ppos)
452 {
453 struct ath5k_softc *sc = file->private_data;
454 unsigned int i;
455 char buf[20];
456
457 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
458 return -EFAULT;
459
460 if (strncmp(buf, "diversity", 9) == 0) {
461 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_DEFAULT);
462 printk(KERN_INFO "ath5k debug: enable diversity\n");
463 } else if (strncmp(buf, "fixed-a", 7) == 0) {
464 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_A);
465 printk(KERN_INFO "ath5k debugfs: fixed antenna A\n");
466 } else if (strncmp(buf, "fixed-b", 7) == 0) {
467 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_B);
468 printk(KERN_INFO "ath5k debug: fixed antenna B\n");
469 } else if (strncmp(buf, "clear", 5) == 0) {
470 for (i = 0; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) {
471 sc->stats.antenna_rx[i] = 0;
472 sc->stats.antenna_tx[i] = 0;
473 }
474 printk(KERN_INFO "ath5k debug: cleared antenna stats\n");
475 }
476 return count;
477 }
478
479 static const struct file_operations fops_antenna = {
480 .read = read_file_antenna,
481 .write = write_file_antenna,
482 .open = ath5k_debugfs_open,
483 .owner = THIS_MODULE,
484 .llseek = default_llseek,
485 };
486
487 /* debugfs: misc */
488
489 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
490 size_t count, loff_t *ppos)
491 {
492 struct ath5k_softc *sc = file->private_data;
493 char buf[700];
494 unsigned int len = 0;
495 u32 filt = ath5k_hw_get_rx_filter(sc->ah);
496
497 len += snprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n",
498 sc->bssidmask);
499 len += snprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ",
500 filt);
501 if (filt & AR5K_RX_FILTER_UCAST)
502 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
503 if (filt & AR5K_RX_FILTER_MCAST)
504 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
505 if (filt & AR5K_RX_FILTER_BCAST)
506 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
507 if (filt & AR5K_RX_FILTER_CONTROL)
508 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
509 if (filt & AR5K_RX_FILTER_BEACON)
510 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
511 if (filt & AR5K_RX_FILTER_PROM)
512 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
513 if (filt & AR5K_RX_FILTER_XRPOLL)
514 len += snprintf(buf + len, sizeof(buf) - len, " XRPOLL");
515 if (filt & AR5K_RX_FILTER_PROBEREQ)
516 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
517 if (filt & AR5K_RX_FILTER_PHYERR_5212)
518 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR-5212");
519 if (filt & AR5K_RX_FILTER_RADARERR_5212)
520 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5212");
521 if (filt & AR5K_RX_FILTER_PHYERR_5211)
522 snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211");
523 if (filt & AR5K_RX_FILTER_RADARERR_5211)
524 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5211");
525
526 len += snprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n",
527 ath_opmode_to_string(sc->opmode), sc->opmode);
528
529 if (len > sizeof(buf))
530 len = sizeof(buf);
531
532 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
533 }
534
535 static const struct file_operations fops_misc = {
536 .read = read_file_misc,
537 .open = ath5k_debugfs_open,
538 .owner = THIS_MODULE,
539 };
540
541
542 /* debugfs: frameerrors */
543
544 static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
545 size_t count, loff_t *ppos)
546 {
547 struct ath5k_softc *sc = file->private_data;
548 struct ath5k_statistics *st = &sc->stats;
549 char buf[700];
550 unsigned int len = 0;
551 int i;
552
553 len += snprintf(buf + len, sizeof(buf) - len,
554 "RX\n---------------------\n");
555 len += snprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n",
556 st->rxerr_crc,
557 st->rx_all_count > 0 ?
558 st->rxerr_crc * 100 / st->rx_all_count : 0);
559 len += snprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n",
560 st->rxerr_phy,
561 st->rx_all_count > 0 ?
562 st->rxerr_phy * 100 / st->rx_all_count : 0);
563 for (i = 0; i < 32; i++) {
564 if (st->rxerr_phy_code[i])
565 len += snprintf(buf + len, sizeof(buf) - len,
566 " phy_err[%u]\t%u\n",
567 i, st->rxerr_phy_code[i]);
568 }
569
570 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
571 st->rxerr_fifo,
572 st->rx_all_count > 0 ?
573 st->rxerr_fifo * 100 / st->rx_all_count : 0);
574 len += snprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n",
575 st->rxerr_decrypt,
576 st->rx_all_count > 0 ?
577 st->rxerr_decrypt * 100 / st->rx_all_count : 0);
578 len += snprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n",
579 st->rxerr_mic,
580 st->rx_all_count > 0 ?
581 st->rxerr_mic * 100 / st->rx_all_count : 0);
582 len += snprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n",
583 st->rxerr_proc,
584 st->rx_all_count > 0 ?
585 st->rxerr_proc * 100 / st->rx_all_count : 0);
586 len += snprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n",
587 st->rxerr_jumbo,
588 st->rx_all_count > 0 ?
589 st->rxerr_jumbo * 100 / st->rx_all_count : 0);
590 len += snprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n",
591 st->rx_all_count);
592 len += snprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n",
593 st->rx_bytes_count);
594
595 len += snprintf(buf + len, sizeof(buf) - len,
596 "\nTX\n---------------------\n");
597 len += snprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n",
598 st->txerr_retry,
599 st->tx_all_count > 0 ?
600 st->txerr_retry * 100 / st->tx_all_count : 0);
601 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
602 st->txerr_fifo,
603 st->tx_all_count > 0 ?
604 st->txerr_fifo * 100 / st->tx_all_count : 0);
605 len += snprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n",
606 st->txerr_filt,
607 st->tx_all_count > 0 ?
608 st->txerr_filt * 100 / st->tx_all_count : 0);
609 len += snprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n",
610 st->tx_all_count);
611 len += snprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n",
612 st->tx_bytes_count);
613
614 if (len > sizeof(buf))
615 len = sizeof(buf);
616
617 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
618 }
619
620 static ssize_t write_file_frameerrors(struct file *file,
621 const char __user *userbuf,
622 size_t count, loff_t *ppos)
623 {
624 struct ath5k_softc *sc = file->private_data;
625 struct ath5k_statistics *st = &sc->stats;
626 char buf[20];
627
628 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
629 return -EFAULT;
630
631 if (strncmp(buf, "clear", 5) == 0) {
632 st->rxerr_crc = 0;
633 st->rxerr_phy = 0;
634 st->rxerr_fifo = 0;
635 st->rxerr_decrypt = 0;
636 st->rxerr_mic = 0;
637 st->rxerr_proc = 0;
638 st->rxerr_jumbo = 0;
639 st->rx_all_count = 0;
640 st->txerr_retry = 0;
641 st->txerr_fifo = 0;
642 st->txerr_filt = 0;
643 st->tx_all_count = 0;
644 printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n");
645 }
646 return count;
647 }
648
649 static const struct file_operations fops_frameerrors = {
650 .read = read_file_frameerrors,
651 .write = write_file_frameerrors,
652 .open = ath5k_debugfs_open,
653 .owner = THIS_MODULE,
654 .llseek = default_llseek,
655 };
656
657
658 /* debugfs: ani */
659
660 static ssize_t read_file_ani(struct file *file, char __user *user_buf,
661 size_t count, loff_t *ppos)
662 {
663 struct ath5k_softc *sc = file->private_data;
664 struct ath5k_statistics *st = &sc->stats;
665 struct ath5k_ani_state *as = &sc->ani_state;
666
667 char buf[700];
668 unsigned int len = 0;
669
670 len += snprintf(buf + len, sizeof(buf) - len,
671 "HW has PHY error counters:\t%s\n",
672 sc->ah->ah_capabilities.cap_has_phyerr_counters ?
673 "yes" : "no");
674 len += snprintf(buf + len, sizeof(buf) - len,
675 "HW max spur immunity level:\t%d\n",
676 as->max_spur_level);
677 len += snprintf(buf + len, sizeof(buf) - len,
678 "\nANI state\n--------------------------------------------\n");
679 len += snprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t");
680 switch (as->ani_mode) {
681 case ATH5K_ANI_MODE_OFF:
682 len += snprintf(buf + len, sizeof(buf) - len, "OFF\n");
683 break;
684 case ATH5K_ANI_MODE_MANUAL_LOW:
685 len += snprintf(buf + len, sizeof(buf) - len,
686 "MANUAL LOW\n");
687 break;
688 case ATH5K_ANI_MODE_MANUAL_HIGH:
689 len += snprintf(buf + len, sizeof(buf) - len,
690 "MANUAL HIGH\n");
691 break;
692 case ATH5K_ANI_MODE_AUTO:
693 len += snprintf(buf + len, sizeof(buf) - len, "AUTO\n");
694 break;
695 default:
696 len += snprintf(buf + len, sizeof(buf) - len,
697 "??? (not good)\n");
698 break;
699 }
700 len += snprintf(buf + len, sizeof(buf) - len,
701 "noise immunity level:\t\t%d\n",
702 as->noise_imm_level);
703 len += snprintf(buf + len, sizeof(buf) - len,
704 "spur immunity level:\t\t%d\n",
705 as->spur_level);
706 len += snprintf(buf + len, sizeof(buf) - len,
707 "firstep level:\t\t\t%d\n",
708 as->firstep_level);
709 len += snprintf(buf + len, sizeof(buf) - len,
710 "OFDM weak signal detection:\t%s\n",
711 as->ofdm_weak_sig ? "on" : "off");
712 len += snprintf(buf + len, sizeof(buf) - len,
713 "CCK weak signal detection:\t%s\n",
714 as->cck_weak_sig ? "on" : "off");
715
716 len += snprintf(buf + len, sizeof(buf) - len,
717 "\nMIB INTERRUPTS:\t\t%u\n",
718 st->mib_intr);
719 len += snprintf(buf + len, sizeof(buf) - len,
720 "beacon RSSI average:\t%d\n",
721 (int)ewma_read(&sc->ah->ah_beacon_rssi_avg));
722
723 #define CC_PRINT(_struct, _field) \
724 _struct._field, \
725 _struct.cycles > 0 ? \
726 _struct._field * 100 / _struct.cycles : 0
727
728 len += snprintf(buf + len, sizeof(buf) - len,
729 "profcnt tx\t\t%u\t(%d%%)\n",
730 CC_PRINT(as->last_cc, tx_frame));
731 len += snprintf(buf + len, sizeof(buf) - len,
732 "profcnt rx\t\t%u\t(%d%%)\n",
733 CC_PRINT(as->last_cc, rx_frame));
734 len += snprintf(buf + len, sizeof(buf) - len,
735 "profcnt busy\t\t%u\t(%d%%)\n",
736 CC_PRINT(as->last_cc, rx_busy));
737 #undef CC_PRINT
738 len += snprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n",
739 as->last_cc.cycles);
740 len += snprintf(buf + len, sizeof(buf) - len,
741 "listen time\t\t%d\tlast: %d\n",
742 as->listen_time, as->last_listen);
743 len += snprintf(buf + len, sizeof(buf) - len,
744 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
745 as->ofdm_errors, as->last_ofdm_errors,
746 as->sum_ofdm_errors);
747 len += snprintf(buf + len, sizeof(buf) - len,
748 "CCK errors\t\t%u\tlast: %u\tsum: %u\n",
749 as->cck_errors, as->last_cck_errors,
750 as->sum_cck_errors);
751 len += snprintf(buf + len, sizeof(buf) - len,
752 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
753 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1),
754 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
755 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1)));
756 len += snprintf(buf + len, sizeof(buf) - len,
757 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
758 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2),
759 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
760 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2)));
761
762 if (len > sizeof(buf))
763 len = sizeof(buf);
764
765 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
766 }
767
768 static ssize_t write_file_ani(struct file *file,
769 const char __user *userbuf,
770 size_t count, loff_t *ppos)
771 {
772 struct ath5k_softc *sc = file->private_data;
773 char buf[20];
774
775 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
776 return -EFAULT;
777
778 if (strncmp(buf, "sens-low", 8) == 0) {
779 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_HIGH);
780 } else if (strncmp(buf, "sens-high", 9) == 0) {
781 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_LOW);
782 } else if (strncmp(buf, "ani-off", 7) == 0) {
783 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_OFF);
784 } else if (strncmp(buf, "ani-on", 6) == 0) {
785 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_AUTO);
786 } else if (strncmp(buf, "noise-low", 9) == 0) {
787 ath5k_ani_set_noise_immunity_level(sc->ah, 0);
788 } else if (strncmp(buf, "noise-high", 10) == 0) {
789 ath5k_ani_set_noise_immunity_level(sc->ah,
790 ATH5K_ANI_MAX_NOISE_IMM_LVL);
791 } else if (strncmp(buf, "spur-low", 8) == 0) {
792 ath5k_ani_set_spur_immunity_level(sc->ah, 0);
793 } else if (strncmp(buf, "spur-high", 9) == 0) {
794 ath5k_ani_set_spur_immunity_level(sc->ah,
795 sc->ani_state.max_spur_level);
796 } else if (strncmp(buf, "fir-low", 7) == 0) {
797 ath5k_ani_set_firstep_level(sc->ah, 0);
798 } else if (strncmp(buf, "fir-high", 8) == 0) {
799 ath5k_ani_set_firstep_level(sc->ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
800 } else if (strncmp(buf, "ofdm-off", 8) == 0) {
801 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, false);
802 } else if (strncmp(buf, "ofdm-on", 7) == 0) {
803 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, true);
804 } else if (strncmp(buf, "cck-off", 7) == 0) {
805 ath5k_ani_set_cck_weak_signal_detection(sc->ah, false);
806 } else if (strncmp(buf, "cck-on", 6) == 0) {
807 ath5k_ani_set_cck_weak_signal_detection(sc->ah, true);
808 }
809 return count;
810 }
811
812 static const struct file_operations fops_ani = {
813 .read = read_file_ani,
814 .write = write_file_ani,
815 .open = ath5k_debugfs_open,
816 .owner = THIS_MODULE,
817 .llseek = default_llseek,
818 };
819
820
821 /* debugfs: queues etc */
822
823 static ssize_t read_file_queue(struct file *file, char __user *user_buf,
824 size_t count, loff_t *ppos)
825 {
826 struct ath5k_softc *sc = file->private_data;
827 char buf[700];
828 unsigned int len = 0;
829
830 struct ath5k_txq *txq;
831 struct ath5k_buf *bf, *bf0;
832 int i, n;
833
834 len += snprintf(buf + len, sizeof(buf) - len,
835 "available txbuffers: %d\n", sc->txbuf_len);
836
837 for (i = 0; i < ARRAY_SIZE(sc->txqs); i++) {
838 txq = &sc->txqs[i];
839
840 len += snprintf(buf + len, sizeof(buf) - len,
841 "%02d: %ssetup\n", i, txq->setup ? "" : "not ");
842
843 if (!txq->setup)
844 continue;
845
846 n = 0;
847 spin_lock_bh(&txq->lock);
848 list_for_each_entry_safe(bf, bf0, &txq->q, list)
849 n++;
850 spin_unlock_bh(&txq->lock);
851
852 len += snprintf(buf + len, sizeof(buf) - len,
853 " len: %d bufs: %d\n", txq->txq_len, n);
854 len += snprintf(buf + len, sizeof(buf) - len,
855 " stuck: %d\n", txq->txq_stuck);
856 }
857
858 if (len > sizeof(buf))
859 len = sizeof(buf);
860
861 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
862 }
863
864 static ssize_t write_file_queue(struct file *file,
865 const char __user *userbuf,
866 size_t count, loff_t *ppos)
867 {
868 struct ath5k_softc *sc = file->private_data;
869 char buf[20];
870
871 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
872 return -EFAULT;
873
874 if (strncmp(buf, "start", 5) == 0)
875 ieee80211_wake_queues(sc->hw);
876 else if (strncmp(buf, "stop", 4) == 0)
877 ieee80211_stop_queues(sc->hw);
878
879 return count;
880 }
881
882
883 static const struct file_operations fops_queue = {
884 .read = read_file_queue,
885 .write = write_file_queue,
886 .open = ath5k_debugfs_open,
887 .owner = THIS_MODULE,
888 .llseek = default_llseek,
889 };
890
891
892 void
893 ath5k_debug_init_device(struct ath5k_softc *sc)
894 {
895 struct dentry *phydir;
896
897 sc->debug.level = ath5k_debug;
898
899 phydir = debugfs_create_dir("ath5k", sc->hw->wiphy->debugfsdir);
900 if (!phydir)
901 return;
902
903 debugfs_create_file("debug", S_IWUSR | S_IRUSR, phydir, sc,
904 &fops_debug);
905
906 debugfs_create_file("registers", S_IRUSR, phydir, sc, &fops_registers);
907
908 debugfs_create_file("beacon", S_IWUSR | S_IRUSR, phydir, sc,
909 &fops_beacon);
910
911 debugfs_create_file("reset", S_IWUSR, phydir, sc, &fops_reset);
912
913 debugfs_create_file("antenna", S_IWUSR | S_IRUSR, phydir, sc,
914 &fops_antenna);
915
916 debugfs_create_file("misc", S_IRUSR, phydir, sc, &fops_misc);
917
918 debugfs_create_file("frameerrors", S_IWUSR | S_IRUSR, phydir, sc,
919 &fops_frameerrors);
920
921 debugfs_create_file("ani", S_IWUSR | S_IRUSR, phydir, sc, &fops_ani);
922
923 debugfs_create_file("queue", S_IWUSR | S_IRUSR, phydir, sc,
924 &fops_queue);
925
926 debugfs_create_bool("32khz_clock", S_IWUSR | S_IRUSR, phydir,
927 &sc->ah->ah_use_32khz_clock);
928 }
929
930 /* functions used in other places */
931
932 void
933 ath5k_debug_dump_bands(struct ath5k_softc *sc)
934 {
935 unsigned int b, i;
936
937 if (likely(!(sc->debug.level & ATH5K_DEBUG_DUMPBANDS)))
938 return;
939
940 BUG_ON(!sc->sbands);
941
942 for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
943 struct ieee80211_supported_band *band = &sc->sbands[b];
944 char bname[6];
945 switch (band->band) {
946 case IEEE80211_BAND_2GHZ:
947 strcpy(bname, "2 GHz");
948 break;
949 case IEEE80211_BAND_5GHZ:
950 strcpy(bname, "5 GHz");
951 break;
952 default:
953 printk(KERN_DEBUG "Band not supported: %d\n",
954 band->band);
955 return;
956 }
957 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
958 band->n_channels, band->n_bitrates);
959 printk(KERN_DEBUG " channels:\n");
960 for (i = 0; i < band->n_channels; i++)
961 printk(KERN_DEBUG " %3d %d %.4x %.4x\n",
962 ieee80211_frequency_to_channel(
963 band->channels[i].center_freq),
964 band->channels[i].center_freq,
965 band->channels[i].hw_value,
966 band->channels[i].flags);
967 printk(KERN_DEBUG " rates:\n");
968 for (i = 0; i < band->n_bitrates; i++)
969 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n",
970 band->bitrates[i].bitrate,
971 band->bitrates[i].hw_value,
972 band->bitrates[i].flags,
973 band->bitrates[i].hw_value_short);
974 }
975 }
976
977 static inline void
978 ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
979 struct ath5k_rx_status *rs)
980 {
981 struct ath5k_desc *ds = bf->desc;
982 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
983
984 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
985 ds, (unsigned long long)bf->daddr,
986 ds->ds_link, ds->ds_data,
987 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
988 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
989 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
990 }
991
992 void
993 ath5k_debug_printrxbuffs(struct ath5k_softc *sc, struct ath5k_hw *ah)
994 {
995 struct ath5k_desc *ds;
996 struct ath5k_buf *bf;
997 struct ath5k_rx_status rs = {};
998 int status;
999
1000 if (likely(!(sc->debug.level & ATH5K_DEBUG_DESC)))
1001 return;
1002
1003 printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
1004 ath5k_hw_get_rxdp(ah), sc->rxlink);
1005
1006 spin_lock_bh(&sc->rxbuflock);
1007 list_for_each_entry(bf, &sc->rxbuf, list) {
1008 ds = bf->desc;
1009 status = ah->ah_proc_rx_desc(ah, ds, &rs);
1010 if (!status)
1011 ath5k_debug_printrxbuf(bf, status == 0, &rs);
1012 }
1013 spin_unlock_bh(&sc->rxbuflock);
1014 }
1015
1016 void
1017 ath5k_debug_printtxbuf(struct ath5k_softc *sc, struct ath5k_buf *bf)
1018 {
1019 struct ath5k_desc *ds = bf->desc;
1020 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
1021 struct ath5k_tx_status ts = {};
1022 int done;
1023
1024 if (likely(!(sc->debug.level & ATH5K_DEBUG_DESC)))
1025 return;
1026
1027 done = sc->ah->ah_proc_tx_desc(sc->ah, bf->desc, &ts);
1028
1029 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
1030 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
1031 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
1032 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
1033 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
1034 done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
1035 }
1036
1037 #endif /* ifdef CONFIG_ATH5K_DEBUG */
Linux kernel - Deliverables
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