?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
spi-topcliff-pch: supports a spi mode setup and bit order setup by IO control
[zen-stable.git] / drivers / net / wireless / ath / ath5k / debug.c
blob8c5ce8b0c7346873a64c6ee9e8f358a2d5a565c6
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 #include <linux/export.h>
61 #include <linux/moduleparam.h>
62
63 #include <linux/seq_file.h>
64 #include <linux/list.h>
65 #include "debug.h"
66 #include "ath5k.h"
67 #include "reg.h"
68 #include "base.h"
69
70 static unsigned int ath5k_debug;
71 module_param_named(debug, ath5k_debug, uint, 0);
72
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_hw *ah = seq->private;
161 struct reg *r = p;
162 seq_printf(seq, "%-25s0x%08x\n", r->name,
163 ath5k_hw_reg_read(ah, r->addr));
164 return 0;
165 }
166
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_hw *ah = file->private_data;
201 char buf[500];
202 unsigned int len = 0;
203 unsigned int v;
204 u64 tsf;
205
206 v = ath5k_hw_reg_read(ah, AR5K_BEACON);
207 len += snprintf(buf + len, sizeof(buf) - len,
208 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
209 "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,
210 (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);
211
212 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n",
213 "AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP));
214
215 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n",
216 "AR5K_BEACON_CNT", ath5k_hw_reg_read(ah, AR5K_BEACON_CNT));
217
218 v = ath5k_hw_reg_read(ah, AR5K_TIMER0);
219 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
220 "AR5K_TIMER0 (TBTT)", v, v);
221
222 v = ath5k_hw_reg_read(ah, AR5K_TIMER1);
223 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
224 "AR5K_TIMER1 (DMA)", v, v >> 3);
225
226 v = ath5k_hw_reg_read(ah, AR5K_TIMER2);
227 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
228 "AR5K_TIMER2 (SWBA)", v, v >> 3);
229
230 v = ath5k_hw_reg_read(ah, AR5K_TIMER3);
231 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
232 "AR5K_TIMER3 (ATIM)", v, v);
233
234 tsf = ath5k_hw_get_tsf64(ah);
235 len += snprintf(buf + len, sizeof(buf) - len,
236 "TSF\t\t0x%016llx\tTU: %08x\n",
237 (unsigned long long)tsf, TSF_TO_TU(tsf));
238
239 if (len > sizeof(buf))
240 len = sizeof(buf);
241
242 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
243 }
244
245 static ssize_t write_file_beacon(struct file *file,
246 const char __user *userbuf,
247 size_t count, loff_t *ppos)
248 {
249 struct ath5k_hw *ah = file->private_data;
250 char buf[20];
251
252 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
253 return -EFAULT;
254
255 if (strncmp(buf, "disable", 7) == 0) {
256 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
257 printk(KERN_INFO "debugfs disable beacons\n");
258 } else if (strncmp(buf, "enable", 6) == 0) {
259 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
260 printk(KERN_INFO "debugfs enable beacons\n");
261 }
262 return count;
263 }
264
265 static const struct file_operations fops_beacon = {
266 .read = read_file_beacon,
267 .write = write_file_beacon,
268 .open = ath5k_debugfs_open,
269 .owner = THIS_MODULE,
270 .llseek = default_llseek,
271 };
272
273
274 /* debugfs: reset */
275
276 static ssize_t write_file_reset(struct file *file,
277 const char __user *userbuf,
278 size_t count, loff_t *ppos)
279 {
280 struct ath5k_hw *ah = file->private_data;
281 ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
282 ieee80211_queue_work(ah->hw, &ah->reset_work);
283 return count;
284 }
285
286 static const struct file_operations fops_reset = {
287 .write = write_file_reset,
288 .open = ath5k_debugfs_open,
289 .owner = THIS_MODULE,
290 .llseek = noop_llseek,
291 };
292
293
294 /* debugfs: debug level */
295
296 static const struct {
297 enum ath5k_debug_level level;
298 const char *name;
299 const char *desc;
300 } dbg_info[] = {
301 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" },
302 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" },
303 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" },
304 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" },
305 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" },
306 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" },
307 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" },
308 { ATH5K_DEBUG_LED, "led", "LED management" },
309 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" },
310 { ATH5K_DEBUG_DMA, "dma", "dma start/stop" },
311 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" },
312 { ATH5K_DEBUG_DESC, "desc", "descriptor chains" },
313 { ATH5K_DEBUG_ANY, "all", "show all debug levels" },
314 };
315
316 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
317 size_t count, loff_t *ppos)
318 {
319 struct ath5k_hw *ah = file->private_data;
320 char buf[700];
321 unsigned int len = 0;
322 unsigned int i;
323
324 len += snprintf(buf + len, sizeof(buf) - len,
325 "DEBUG LEVEL: 0x%08x\n\n", ah->debug.level);
326
327 for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
328 len += snprintf(buf + len, sizeof(buf) - len,
329 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
330 ah->debug.level & dbg_info[i].level ? '+' : ' ',
331 dbg_info[i].level, dbg_info[i].desc);
332 }
333 len += snprintf(buf + len, sizeof(buf) - len,
334 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
335 ah->debug.level == dbg_info[i].level ? '+' : ' ',
336 dbg_info[i].level, dbg_info[i].desc);
337
338 if (len > sizeof(buf))
339 len = sizeof(buf);
340
341 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
342 }
343
344 static ssize_t write_file_debug(struct file *file,
345 const char __user *userbuf,
346 size_t count, loff_t *ppos)
347 {
348 struct ath5k_hw *ah = file->private_data;
349 unsigned int i;
350 char buf[20];
351
352 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
353 return -EFAULT;
354
355 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
356 if (strncmp(buf, dbg_info[i].name,
357 strlen(dbg_info[i].name)) == 0) {
358 ah->debug.level ^= dbg_info[i].level; /* toggle bit */
359 break;
360 }
361 }
362 return count;
363 }
364
365 static const struct file_operations fops_debug = {
366 .read = read_file_debug,
367 .write = write_file_debug,
368 .open = ath5k_debugfs_open,
369 .owner = THIS_MODULE,
370 .llseek = default_llseek,
371 };
372
373
374 /* debugfs: antenna */
375
376 static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
377 size_t count, loff_t *ppos)
378 {
379 struct ath5k_hw *ah = file->private_data;
380 char buf[700];
381 unsigned int len = 0;
382 unsigned int i;
383 unsigned int v;
384
385 len += snprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n",
386 ah->ah_ant_mode);
387 len += snprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n",
388 ah->ah_def_ant);
389 len += snprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n",
390 ah->ah_tx_ant);
391
392 len += snprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n");
393 for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
394 len += snprintf(buf + len, sizeof(buf) - len,
395 "[antenna %d]\t%d\t%d\n",
396 i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]);
397 }
398 len += snprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n",
399 ah->stats.antenna_rx[0], ah->stats.antenna_tx[0]);
400
401 v = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA);
402 len += snprintf(buf + len, sizeof(buf) - len,
403 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
404
405 v = ath5k_hw_reg_read(ah, AR5K_STA_ID1);
406 len += snprintf(buf + len, sizeof(buf) - len,
407 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
408 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
409 len += snprintf(buf + len, sizeof(buf) - len,
410 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
411 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
412 len += snprintf(buf + len, sizeof(buf) - len,
413 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
414 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
415 len += snprintf(buf + len, sizeof(buf) - len,
416 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
417 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
418
419 v = ath5k_hw_reg_read(ah, AR5K_PHY_AGCCTL);
420 len += snprintf(buf + len, sizeof(buf) - len,
421 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
422 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
423
424 v = ath5k_hw_reg_read(ah, AR5K_PHY_RESTART);
425 len += snprintf(buf + len, sizeof(buf) - len,
426 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
427 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
428
429 v = ath5k_hw_reg_read(ah, AR5K_PHY_FAST_ANT_DIV);
430 len += snprintf(buf + len, sizeof(buf) - len,
431 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
432 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
433
434 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
435 len += snprintf(buf + len, sizeof(buf) - len,
436 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
437 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
438 len += snprintf(buf + len, sizeof(buf) - len,
439 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
440
441 if (len > sizeof(buf))
442 len = sizeof(buf);
443
444 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
445 }
446
447 static ssize_t write_file_antenna(struct file *file,
448 const char __user *userbuf,
449 size_t count, loff_t *ppos)
450 {
451 struct ath5k_hw *ah = file->private_data;
452 unsigned int i;
453 char buf[20];
454
455 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
456 return -EFAULT;
457
458 if (strncmp(buf, "diversity", 9) == 0) {
459 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT);
460 printk(KERN_INFO "ath5k debug: enable diversity\n");
461 } else if (strncmp(buf, "fixed-a", 7) == 0) {
462 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A);
463 printk(KERN_INFO "ath5k debugfs: fixed antenna A\n");
464 } else if (strncmp(buf, "fixed-b", 7) == 0) {
465 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B);
466 printk(KERN_INFO "ath5k debug: fixed antenna B\n");
467 } else if (strncmp(buf, "clear", 5) == 0) {
468 for (i = 0; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
469 ah->stats.antenna_rx[i] = 0;
470 ah->stats.antenna_tx[i] = 0;
471 }
472 printk(KERN_INFO "ath5k debug: cleared antenna stats\n");
473 }
474 return count;
475 }
476
477 static const struct file_operations fops_antenna = {
478 .read = read_file_antenna,
479 .write = write_file_antenna,
480 .open = ath5k_debugfs_open,
481 .owner = THIS_MODULE,
482 .llseek = default_llseek,
483 };
484
485 /* debugfs: misc */
486
487 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
488 size_t count, loff_t *ppos)
489 {
490 struct ath5k_hw *ah = file->private_data;
491 char buf[700];
492 unsigned int len = 0;
493 u32 filt = ath5k_hw_get_rx_filter(ah);
494
495 len += snprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n",
496 ah->bssidmask);
497 len += snprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ",
498 filt);
499 if (filt & AR5K_RX_FILTER_UCAST)
500 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
501 if (filt & AR5K_RX_FILTER_MCAST)
502 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
503 if (filt & AR5K_RX_FILTER_BCAST)
504 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
505 if (filt & AR5K_RX_FILTER_CONTROL)
506 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
507 if (filt & AR5K_RX_FILTER_BEACON)
508 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
509 if (filt & AR5K_RX_FILTER_PROM)
510 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
511 if (filt & AR5K_RX_FILTER_XRPOLL)
512 len += snprintf(buf + len, sizeof(buf) - len, " XRPOLL");
513 if (filt & AR5K_RX_FILTER_PROBEREQ)
514 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
515 if (filt & AR5K_RX_FILTER_PHYERR_5212)
516 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR-5212");
517 if (filt & AR5K_RX_FILTER_RADARERR_5212)
518 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5212");
519 if (filt & AR5K_RX_FILTER_PHYERR_5211)
520 snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211");
521 if (filt & AR5K_RX_FILTER_RADARERR_5211)
522 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5211");
523
524 len += snprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n",
525 ath_opmode_to_string(ah->opmode), ah->opmode);
526
527 if (len > sizeof(buf))
528 len = sizeof(buf);
529
530 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
531 }
532
533 static const struct file_operations fops_misc = {
534 .read = read_file_misc,
535 .open = ath5k_debugfs_open,
536 .owner = THIS_MODULE,
537 };
538
539
540 /* debugfs: frameerrors */
541
542 static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
543 size_t count, loff_t *ppos)
544 {
545 struct ath5k_hw *ah = file->private_data;
546 struct ath5k_statistics *st = &ah->stats;
547 char buf[700];
548 unsigned int len = 0;
549 int i;
550
551 len += snprintf(buf + len, sizeof(buf) - len,
552 "RX\n---------------------\n");
553 len += snprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n",
554 st->rxerr_crc,
555 st->rx_all_count > 0 ?
556 st->rxerr_crc * 100 / st->rx_all_count : 0);
557 len += snprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n",
558 st->rxerr_phy,
559 st->rx_all_count > 0 ?
560 st->rxerr_phy * 100 / st->rx_all_count : 0);
561 for (i = 0; i < 32; i++) {
562 if (st->rxerr_phy_code[i])
563 len += snprintf(buf + len, sizeof(buf) - len,
564 " phy_err[%u]\t%u\n",
565 i, st->rxerr_phy_code[i]);
566 }
567
568 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
569 st->rxerr_fifo,
570 st->rx_all_count > 0 ?
571 st->rxerr_fifo * 100 / st->rx_all_count : 0);
572 len += snprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n",
573 st->rxerr_decrypt,
574 st->rx_all_count > 0 ?
575 st->rxerr_decrypt * 100 / st->rx_all_count : 0);
576 len += snprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n",
577 st->rxerr_mic,
578 st->rx_all_count > 0 ?
579 st->rxerr_mic * 100 / st->rx_all_count : 0);
580 len += snprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n",
581 st->rxerr_proc,
582 st->rx_all_count > 0 ?
583 st->rxerr_proc * 100 / st->rx_all_count : 0);
584 len += snprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n",
585 st->rxerr_jumbo,
586 st->rx_all_count > 0 ?
587 st->rxerr_jumbo * 100 / st->rx_all_count : 0);
588 len += snprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n",
589 st->rx_all_count);
590 len += snprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n",
591 st->rx_bytes_count);
592
593 len += snprintf(buf + len, sizeof(buf) - len,
594 "\nTX\n---------------------\n");
595 len += snprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n",
596 st->txerr_retry,
597 st->tx_all_count > 0 ?
598 st->txerr_retry * 100 / st->tx_all_count : 0);
599 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
600 st->txerr_fifo,
601 st->tx_all_count > 0 ?
602 st->txerr_fifo * 100 / st->tx_all_count : 0);
603 len += snprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n",
604 st->txerr_filt,
605 st->tx_all_count > 0 ?
606 st->txerr_filt * 100 / st->tx_all_count : 0);
607 len += snprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n",
608 st->tx_all_count);
609 len += snprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n",
610 st->tx_bytes_count);
611
612 if (len > sizeof(buf))
613 len = sizeof(buf);
614
615 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
616 }
617
618 static ssize_t write_file_frameerrors(struct file *file,
619 const char __user *userbuf,
620 size_t count, loff_t *ppos)
621 {
622 struct ath5k_hw *ah = file->private_data;
623 struct ath5k_statistics *st = &ah->stats;
624 char buf[20];
625
626 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
627 return -EFAULT;
628
629 if (strncmp(buf, "clear", 5) == 0) {
630 st->rxerr_crc = 0;
631 st->rxerr_phy = 0;
632 st->rxerr_fifo = 0;
633 st->rxerr_decrypt = 0;
634 st->rxerr_mic = 0;
635 st->rxerr_proc = 0;
636 st->rxerr_jumbo = 0;
637 st->rx_all_count = 0;
638 st->txerr_retry = 0;
639 st->txerr_fifo = 0;
640 st->txerr_filt = 0;
641 st->tx_all_count = 0;
642 printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n");
643 }
644 return count;
645 }
646
647 static const struct file_operations fops_frameerrors = {
648 .read = read_file_frameerrors,
649 .write = write_file_frameerrors,
650 .open = ath5k_debugfs_open,
651 .owner = THIS_MODULE,
652 .llseek = default_llseek,
653 };
654
655
656 /* debugfs: ani */
657
658 static ssize_t read_file_ani(struct file *file, char __user *user_buf,
659 size_t count, loff_t *ppos)
660 {
661 struct ath5k_hw *ah = file->private_data;
662 struct ath5k_statistics *st = &ah->stats;
663 struct ath5k_ani_state *as = &ah->ani_state;
664
665 char buf[700];
666 unsigned int len = 0;
667
668 len += snprintf(buf + len, sizeof(buf) - len,
669 "HW has PHY error counters:\t%s\n",
670 ah->ah_capabilities.cap_has_phyerr_counters ?
671 "yes" : "no");
672 len += snprintf(buf + len, sizeof(buf) - len,
673 "HW max spur immunity level:\t%d\n",
674 as->max_spur_level);
675 len += snprintf(buf + len, sizeof(buf) - len,
676 "\nANI state\n--------------------------------------------\n");
677 len += snprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t");
678 switch (as->ani_mode) {
679 case ATH5K_ANI_MODE_OFF:
680 len += snprintf(buf + len, sizeof(buf) - len, "OFF\n");
681 break;
682 case ATH5K_ANI_MODE_MANUAL_LOW:
683 len += snprintf(buf + len, sizeof(buf) - len,
684 "MANUAL LOW\n");
685 break;
686 case ATH5K_ANI_MODE_MANUAL_HIGH:
687 len += snprintf(buf + len, sizeof(buf) - len,
688 "MANUAL HIGH\n");
689 break;
690 case ATH5K_ANI_MODE_AUTO:
691 len += snprintf(buf + len, sizeof(buf) - len, "AUTO\n");
692 break;
693 default:
694 len += snprintf(buf + len, sizeof(buf) - len,
695 "??? (not good)\n");
696 break;
697 }
698 len += snprintf(buf + len, sizeof(buf) - len,
699 "noise immunity level:\t\t%d\n",
700 as->noise_imm_level);
701 len += snprintf(buf + len, sizeof(buf) - len,
702 "spur immunity level:\t\t%d\n",
703 as->spur_level);
704 len += snprintf(buf + len, sizeof(buf) - len,
705 "firstep level:\t\t\t%d\n",
706 as->firstep_level);
707 len += snprintf(buf + len, sizeof(buf) - len,
708 "OFDM weak signal detection:\t%s\n",
709 as->ofdm_weak_sig ? "on" : "off");
710 len += snprintf(buf + len, sizeof(buf) - len,
711 "CCK weak signal detection:\t%s\n",
712 as->cck_weak_sig ? "on" : "off");
713
714 len += snprintf(buf + len, sizeof(buf) - len,
715 "\nMIB INTERRUPTS:\t\t%u\n",
716 st->mib_intr);
717 len += snprintf(buf + len, sizeof(buf) - len,
718 "beacon RSSI average:\t%d\n",
719 (int)ewma_read(&ah->ah_beacon_rssi_avg));
720
721 #define CC_PRINT(_struct, _field) \
722 _struct._field, \
723 _struct.cycles > 0 ? \
724 _struct._field * 100 / _struct.cycles : 0
725
726 len += snprintf(buf + len, sizeof(buf) - len,
727 "profcnt tx\t\t%u\t(%d%%)\n",
728 CC_PRINT(as->last_cc, tx_frame));
729 len += snprintf(buf + len, sizeof(buf) - len,
730 "profcnt rx\t\t%u\t(%d%%)\n",
731 CC_PRINT(as->last_cc, rx_frame));
732 len += snprintf(buf + len, sizeof(buf) - len,
733 "profcnt busy\t\t%u\t(%d%%)\n",
734 CC_PRINT(as->last_cc, rx_busy));
735 #undef CC_PRINT
736 len += snprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n",
737 as->last_cc.cycles);
738 len += snprintf(buf + len, sizeof(buf) - len,
739 "listen time\t\t%d\tlast: %d\n",
740 as->listen_time, as->last_listen);
741 len += snprintf(buf + len, sizeof(buf) - len,
742 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
743 as->ofdm_errors, as->last_ofdm_errors,
744 as->sum_ofdm_errors);
745 len += snprintf(buf + len, sizeof(buf) - len,
746 "CCK errors\t\t%u\tlast: %u\tsum: %u\n",
747 as->cck_errors, as->last_cck_errors,
748 as->sum_cck_errors);
749 len += snprintf(buf + len, sizeof(buf) - len,
750 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
751 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1),
752 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
753 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1)));
754 len += snprintf(buf + len, sizeof(buf) - len,
755 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
756 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2),
757 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
758 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2)));
759
760 if (len > sizeof(buf))
761 len = sizeof(buf);
762
763 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
764 }
765
766 static ssize_t write_file_ani(struct file *file,
767 const char __user *userbuf,
768 size_t count, loff_t *ppos)
769 {
770 struct ath5k_hw *ah = file->private_data;
771 char buf[20];
772
773 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
774 return -EFAULT;
775
776 if (strncmp(buf, "sens-low", 8) == 0) {
777 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_HIGH);
778 } else if (strncmp(buf, "sens-high", 9) == 0) {
779 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_LOW);
780 } else if (strncmp(buf, "ani-off", 7) == 0) {
781 ath5k_ani_init(ah, ATH5K_ANI_MODE_OFF);
782 } else if (strncmp(buf, "ani-on", 6) == 0) {
783 ath5k_ani_init(ah, ATH5K_ANI_MODE_AUTO);
784 } else if (strncmp(buf, "noise-low", 9) == 0) {
785 ath5k_ani_set_noise_immunity_level(ah, 0);
786 } else if (strncmp(buf, "noise-high", 10) == 0) {
787 ath5k_ani_set_noise_immunity_level(ah,
788 ATH5K_ANI_MAX_NOISE_IMM_LVL);
789 } else if (strncmp(buf, "spur-low", 8) == 0) {
790 ath5k_ani_set_spur_immunity_level(ah, 0);
791 } else if (strncmp(buf, "spur-high", 9) == 0) {
792 ath5k_ani_set_spur_immunity_level(ah,
793 ah->ani_state.max_spur_level);
794 } else if (strncmp(buf, "fir-low", 7) == 0) {
795 ath5k_ani_set_firstep_level(ah, 0);
796 } else if (strncmp(buf, "fir-high", 8) == 0) {
797 ath5k_ani_set_firstep_level(ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
798 } else if (strncmp(buf, "ofdm-off", 8) == 0) {
799 ath5k_ani_set_ofdm_weak_signal_detection(ah, false);
800 } else if (strncmp(buf, "ofdm-on", 7) == 0) {
801 ath5k_ani_set_ofdm_weak_signal_detection(ah, true);
802 } else if (strncmp(buf, "cck-off", 7) == 0) {
803 ath5k_ani_set_cck_weak_signal_detection(ah, false);
804 } else if (strncmp(buf, "cck-on", 6) == 0) {
805 ath5k_ani_set_cck_weak_signal_detection(ah, true);
806 }
807 return count;
808 }
809
810 static const struct file_operations fops_ani = {
811 .read = read_file_ani,
812 .write = write_file_ani,
813 .open = ath5k_debugfs_open,
814 .owner = THIS_MODULE,
815 .llseek = default_llseek,
816 };
817
818
819 /* debugfs: queues etc */
820
821 static ssize_t read_file_queue(struct file *file, char __user *user_buf,
822 size_t count, loff_t *ppos)
823 {
824 struct ath5k_hw *ah = file->private_data;
825 char buf[700];
826 unsigned int len = 0;
827
828 struct ath5k_txq *txq;
829 struct ath5k_buf *bf, *bf0;
830 int i, n;
831
832 len += snprintf(buf + len, sizeof(buf) - len,
833 "available txbuffers: %d\n", ah->txbuf_len);
834
835 for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) {
836 txq = &ah->txqs[i];
837
838 len += snprintf(buf + len, sizeof(buf) - len,
839 "%02d: %ssetup\n", i, txq->setup ? "" : "not ");
840
841 if (!txq->setup)
842 continue;
843
844 n = 0;
845 spin_lock_bh(&txq->lock);
846 list_for_each_entry_safe(bf, bf0, &txq->q, list)
847 n++;
848 spin_unlock_bh(&txq->lock);
849
850 len += snprintf(buf + len, sizeof(buf) - len,
851 " len: %d bufs: %d\n", txq->txq_len, n);
852 len += snprintf(buf + len, sizeof(buf) - len,
853 " stuck: %d\n", txq->txq_stuck);
854 }
855
856 if (len > sizeof(buf))
857 len = sizeof(buf);
858
859 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
860 }
861
862 static ssize_t write_file_queue(struct file *file,
863 const char __user *userbuf,
864 size_t count, loff_t *ppos)
865 {
866 struct ath5k_hw *ah = file->private_data;
867 char buf[20];
868
869 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
870 return -EFAULT;
871
872 if (strncmp(buf, "start", 5) == 0)
873 ieee80211_wake_queues(ah->hw);
874 else if (strncmp(buf, "stop", 4) == 0)
875 ieee80211_stop_queues(ah->hw);
876
877 return count;
878 }
879
880
881 static const struct file_operations fops_queue = {
882 .read = read_file_queue,
883 .write = write_file_queue,
884 .open = ath5k_debugfs_open,
885 .owner = THIS_MODULE,
886 .llseek = default_llseek,
887 };
888
889
890 void
891 ath5k_debug_init_device(struct ath5k_hw *ah)
892 {
893 struct dentry *phydir;
894
895 ah->debug.level = ath5k_debug;
896
897 phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir);
898 if (!phydir)
899 return;
900
901 debugfs_create_file("debug", S_IWUSR | S_IRUSR, phydir, ah,
902 &fops_debug);
903
904 debugfs_create_file("registers", S_IRUSR, phydir, ah, &fops_registers);
905
906 debugfs_create_file("beacon", S_IWUSR | S_IRUSR, phydir, ah,
907 &fops_beacon);
908
909 debugfs_create_file("reset", S_IWUSR, phydir, ah, &fops_reset);
910
911 debugfs_create_file("antenna", S_IWUSR | S_IRUSR, phydir, ah,
912 &fops_antenna);
913
914 debugfs_create_file("misc", S_IRUSR, phydir, ah, &fops_misc);
915
916 debugfs_create_file("frameerrors", S_IWUSR | S_IRUSR, phydir, ah,
917 &fops_frameerrors);
918
919 debugfs_create_file("ani", S_IWUSR | S_IRUSR, phydir, ah, &fops_ani);
920
921 debugfs_create_file("queue", S_IWUSR | S_IRUSR, phydir, ah,
922 &fops_queue);
923
924 debugfs_create_bool("32khz_clock", S_IWUSR | S_IRUSR, phydir,
925 &ah->ah_use_32khz_clock);
926 }
927
928 /* functions used in other places */
929
930 void
931 ath5k_debug_dump_bands(struct ath5k_hw *ah)
932 {
933 unsigned int b, i;
934
935 if (likely(!(ah->debug.level & ATH5K_DEBUG_DUMPBANDS)))
936 return;
937
938 BUG_ON(!ah->sbands);
939
940 for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
941 struct ieee80211_supported_band *band = &ah->sbands[b];
942 char bname[6];
943 switch (band->band) {
944 case IEEE80211_BAND_2GHZ:
945 strcpy(bname, "2 GHz");
946 break;
947 case IEEE80211_BAND_5GHZ:
948 strcpy(bname, "5 GHz");
949 break;
950 default:
951 printk(KERN_DEBUG "Band not supported: %d\n",
952 band->band);
953 return;
954 }
955 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
956 band->n_channels, band->n_bitrates);
957 printk(KERN_DEBUG " channels:\n");
958 for (i = 0; i < band->n_channels; i++)
959 printk(KERN_DEBUG " %3d %d %.4x %.4x\n",
960 ieee80211_frequency_to_channel(
961 band->channels[i].center_freq),
962 band->channels[i].center_freq,
963 band->channels[i].hw_value,
964 band->channels[i].flags);
965 printk(KERN_DEBUG " rates:\n");
966 for (i = 0; i < band->n_bitrates; i++)
967 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n",
968 band->bitrates[i].bitrate,
969 band->bitrates[i].hw_value,
970 band->bitrates[i].flags,
971 band->bitrates[i].hw_value_short);
972 }
973 }
974
975 static inline void
976 ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
977 struct ath5k_rx_status *rs)
978 {
979 struct ath5k_desc *ds = bf->desc;
980 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
981
982 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
983 ds, (unsigned long long)bf->daddr,
984 ds->ds_link, ds->ds_data,
985 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
986 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
987 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
988 }
989
990 void
991 ath5k_debug_printrxbuffs(struct ath5k_hw *ah)
992 {
993 struct ath5k_desc *ds;
994 struct ath5k_buf *bf;
995 struct ath5k_rx_status rs = {};
996 int status;
997
998 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
999 return;
1000
1001 printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
1002 ath5k_hw_get_rxdp(ah), ah->rxlink);
1003
1004 spin_lock_bh(&ah->rxbuflock);
1005 list_for_each_entry(bf, &ah->rxbuf, list) {
1006 ds = bf->desc;
1007 status = ah->ah_proc_rx_desc(ah, ds, &rs);
1008 if (!status)
1009 ath5k_debug_printrxbuf(bf, status == 0, &rs);
1010 }
1011 spin_unlock_bh(&ah->rxbuflock);
1012 }
1013
1014 void
1015 ath5k_debug_printtxbuf(struct ath5k_hw *ah, struct ath5k_buf *bf)
1016 {
1017 struct ath5k_desc *ds = bf->desc;
1018 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
1019 struct ath5k_tx_status ts = {};
1020 int done;
1021
1022 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
1023 return;
1024
1025 done = ah->ah_proc_tx_desc(ah, bf->desc, &ts);
1026
1027 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
1028 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
1029 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
1030 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
1031 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
1032 done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
1033 }