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[net-next-2.6.git] / drivers / net / wireless / ath / ath5k / debug.c
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fa1c114f 1/*
be9b7259 2 * Copyright (c) 2007-2008 Bruno Randolf <bruno@thinktube.com>
fa1c114f
JS		 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
fa1c114f 61#include "base.h"
c6e387a2 62#include "debug.h"
fa1c114f
JS		 63
64static unsigned int ath5k_debug;
65module_param_named(debug, ath5k_debug, uint, 0);
66
67
b446197c 68#ifdef CONFIG_ATH5K_DEBUG
fa1c114f
JS		 69
70#include <linux/seq_file.h>
71#include "reg.h"
2111ac0d 72#include "ani.h"
fa1c114f
JS		 73
74static struct dentry *ath5k_global_debugfs;
75
76static int ath5k_debugfs_open(struct inode *inode, struct file *file)
77{
78 file->private_data = inode->i_private;
79 return 0;
80}
81
82
83/* debugfs: registers */
84
85struct reg {
2c91108c 86 const char *name;
fa1c114f
JS		 87 int addr;
88};
89
90#define REG_STRUCT_INIT(r) { #r, r }
91
92/* just a few random registers, might want to add more */
2c91108c 93static const struct reg regs[] = {
fa1c114f
JS		 94 REG_STRUCT_INIT(AR5K_CR),
95 REG_STRUCT_INIT(AR5K_RXDP),
96 REG_STRUCT_INIT(AR5K_CFG),
97 REG_STRUCT_INIT(AR5K_IER),
98 REG_STRUCT_INIT(AR5K_BCR),
99 REG_STRUCT_INIT(AR5K_RTSD0),
100 REG_STRUCT_INIT(AR5K_RTSD1),
101 REG_STRUCT_INIT(AR5K_TXCFG),
102 REG_STRUCT_INIT(AR5K_RXCFG),
103 REG_STRUCT_INIT(AR5K_RXJLA),
104 REG_STRUCT_INIT(AR5K_MIBC),
105 REG_STRUCT_INIT(AR5K_TOPS),
106 REG_STRUCT_INIT(AR5K_RXNOFRM),
107 REG_STRUCT_INIT(AR5K_TXNOFRM),
108 REG_STRUCT_INIT(AR5K_RPGTO),
109 REG_STRUCT_INIT(AR5K_RFCNT),
110 REG_STRUCT_INIT(AR5K_MISC),
111 REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT),
112 REG_STRUCT_INIT(AR5K_ISR),
113 REG_STRUCT_INIT(AR5K_PISR),
114 REG_STRUCT_INIT(AR5K_SISR0),
115 REG_STRUCT_INIT(AR5K_SISR1),
116 REG_STRUCT_INIT(AR5K_SISR2),
117 REG_STRUCT_INIT(AR5K_SISR3),
118 REG_STRUCT_INIT(AR5K_SISR4),
119 REG_STRUCT_INIT(AR5K_IMR),
120 REG_STRUCT_INIT(AR5K_PIMR),
121 REG_STRUCT_INIT(AR5K_SIMR0),
122 REG_STRUCT_INIT(AR5K_SIMR1),
123 REG_STRUCT_INIT(AR5K_SIMR2),
124 REG_STRUCT_INIT(AR5K_SIMR3),
125 REG_STRUCT_INIT(AR5K_SIMR4),
126 REG_STRUCT_INIT(AR5K_DCM_ADDR),
127 REG_STRUCT_INIT(AR5K_DCCFG),
128 REG_STRUCT_INIT(AR5K_CCFG),
129 REG_STRUCT_INIT(AR5K_CPC0),
130 REG_STRUCT_INIT(AR5K_CPC1),
131 REG_STRUCT_INIT(AR5K_CPC2),
132 REG_STRUCT_INIT(AR5K_CPC3),
0bacdf30 133 REG_STRUCT_INIT(AR5K_CPCOVF),
fa1c114f
JS		 134 REG_STRUCT_INIT(AR5K_RESET_CTL),
135 REG_STRUCT_INIT(AR5K_SLEEP_CTL),
136 REG_STRUCT_INIT(AR5K_INTPEND),
137 REG_STRUCT_INIT(AR5K_SFR),
138 REG_STRUCT_INIT(AR5K_PCICFG),
139 REG_STRUCT_INIT(AR5K_GPIOCR),
140 REG_STRUCT_INIT(AR5K_GPIODO),
141 REG_STRUCT_INIT(AR5K_SREV),
142};
143
144static void *reg_start(struct seq_file *seq, loff_t *pos)
145{
2c91108c 146 return *pos < ARRAY_SIZE(regs) ? (void *)&regs[*pos] : NULL;
fa1c114f
JS		 147}
148
149static void reg_stop(struct seq_file *seq, void *p)
150{
151 /* nothing to do */
152}
153
154static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)
155{
156 ++*pos;
2c91108c 157 return *pos < ARRAY_SIZE(regs) ? (void *)&regs[*pos] : NULL;
fa1c114f
JS		 158}
159
160static int reg_show(struct seq_file *seq, void *p)
161{
162 struct ath5k_softc *sc = seq->private;
163 struct reg *r = p;
164 seq_printf(seq, "%-25s0x%08x\n", r->name,
165 ath5k_hw_reg_read(sc->ah, r->addr));
166 return 0;
167}
168
4101dec9 169static const struct seq_operations register_seq_ops = {
fa1c114f
JS		 170 .start = reg_start,
171 .next = reg_next,
172 .stop = reg_stop,
173 .show = reg_show
174};
175
176static int open_file_registers(struct inode *inode, struct file *file)
177{
178 struct seq_file *s;
179 int res;
180 res = seq_open(file, &register_seq_ops);
181 if (res == 0) {
182 s = file->private_data;
183 s->private = inode->i_private;
184 }
185 return res;
186}
187
188static const struct file_operations fops_registers = {
189 .open = open_file_registers,
190 .read = seq_read,
191 .llseek = seq_lseek,
192 .release = seq_release,
193 .owner = THIS_MODULE,
194};
195
196
fa1c114f
JS		 197/* debugfs: beacons */
198
199static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
200 size_t count, loff_t *ppos)
201{
202 struct ath5k_softc *sc = file->private_data;
203 struct ath5k_hw *ah = sc->ah;
be9b7259
BR		 204 char buf[500];
205 unsigned int len = 0;
fa1c114f
JS		 206 unsigned int v;
207 u64 tsf;
208
209 v = ath5k_hw_reg_read(sc->ah, AR5K_BEACON);
210 len += snprintf(buf+len, sizeof(buf)-len,
211 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
212 "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,
213 (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);
214
215 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\n",
216 "AR5K_LAST_TSTP", ath5k_hw_reg_read(sc->ah, AR5K_LAST_TSTP));
217
218 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\n\n",
219 "AR5K_BEACON_CNT", ath5k_hw_reg_read(sc->ah, AR5K_BEACON_CNT));
220
221 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER0);
222 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n",
223 "AR5K_TIMER0 (TBTT)", v, v);
224
225 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER1);
226 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n",
227 "AR5K_TIMER1 (DMA)", v, v >> 3);
228
229 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER2);
230 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n",
231 "AR5K_TIMER2 (SWBA)", v, v >> 3);
232
233 v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER3);
234 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n",
235 "AR5K_TIMER3 (ATIM)", v, v);
236
237 tsf = ath5k_hw_get_tsf64(sc->ah);
238 len += snprintf(buf+len, sizeof(buf)-len,
f868f4e1
JL		 239 "TSF\t\t0x%016llx\tTU: %08x\n",
240 (unsigned long long)tsf, TSF_TO_TU(tsf));
fa1c114f
JS		 241
242 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
243}
244
245static ssize_t write_file_beacon(struct file *file,
246 const char __user *userbuf,
247 size_t count, loff_t *ppos)
248{
249 struct ath5k_softc *sc = file->private_data;
250 struct ath5k_hw *ah = sc->ah;
be9b7259 251 char buf[20];
fa1c114f 252
be9b7259
BR		 253 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
254 return -EFAULT;
255
256 if (strncmp(buf, "disable", 7) == 0) {
fa1c114f
JS		 257 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
258 printk(KERN_INFO "debugfs disable beacons\n");
be9b7259 259 } else if (strncmp(buf, "enable", 6) == 0) {
fa1c114f
JS		 260 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
261 printk(KERN_INFO "debugfs enable beacons\n");
262 }
263 return count;
264}
265
266static const struct file_operations fops_beacon = {
267 .read = read_file_beacon,
268 .write = write_file_beacon,
269 .open = ath5k_debugfs_open,
270 .owner = THIS_MODULE,
271};
272
273
274/* debugfs: reset */
275
276static ssize_t write_file_reset(struct file *file,
277 const char __user *userbuf,
278 size_t count, loff_t *ppos)
279{
280 struct ath5k_softc *sc = file->private_data;
281 tasklet_schedule(&sc->restq);
282 return count;
283}
284
285static const struct file_operations fops_reset = {
286 .write = write_file_reset,
287 .open = ath5k_debugfs_open,
288 .owner = THIS_MODULE,
289};
290
291
be9b7259
BR		 292/* debugfs: debug level */
293
2c91108c 294static const struct {
be9b7259
BR		 295 enum ath5k_debug_level level;
296 const char *name;
297 const char *desc;
298} dbg_info[] = {
299 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" },
300 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" },
301 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" },
302 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" },
303 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" },
304 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" },
305 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" },
85519a65 306 { ATH5K_DEBUG_LED, "led", "LED management" },
be9b7259
BR		 307 { ATH5K_DEBUG_DUMP_RX, "dumprx", "print received skb content" },
308 { ATH5K_DEBUG_DUMP_TX, "dumptx", "print transmit skb content" },
b446197c 309 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" },
2111ac0d 310 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" },
be9b7259
BR		 311 { ATH5K_DEBUG_ANY, "all", "show all debug levels" },
312};
313
314static ssize_t read_file_debug(struct file *file, char __user *user_buf,
315 size_t count, loff_t *ppos)
316{
317 struct ath5k_softc *sc = file->private_data;
318 char buf[700];
319 unsigned int len = 0;
320 unsigned int i;
321
322 len += snprintf(buf+len, sizeof(buf)-len,
323 "DEBUG LEVEL: 0x%08x\n\n", sc->debug.level);
324
325 for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
326 len += snprintf(buf+len, sizeof(buf)-len,
327 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
328 sc->debug.level & dbg_info[i].level ? '+' : ' ',
329 dbg_info[i].level, dbg_info[i].desc);
330 }
331 len += snprintf(buf+len, sizeof(buf)-len,
332 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
333 sc->debug.level == dbg_info[i].level ? '+' : ' ',
334 dbg_info[i].level, dbg_info[i].desc);
335
336 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
337}
338
339static ssize_t write_file_debug(struct file *file,
340 const char __user *userbuf,
341 size_t count, loff_t *ppos)
342{
343 struct ath5k_softc *sc = file->private_data;
344 unsigned int i;
345 char buf[20];
346
347 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
348 return -EFAULT;
349
350 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
351 if (strncmp(buf, dbg_info[i].name,
352 strlen(dbg_info[i].name)) == 0) {
353 sc->debug.level ^= dbg_info[i].level; /* toggle bit */
354 break;
355 }
356 }
357 return count;
358}
359
360static const struct file_operations fops_debug = {
361 .read = read_file_debug,
362 .write = write_file_debug,
363 .open = ath5k_debugfs_open,
364 .owner = THIS_MODULE,
365};
366
367
604eeadd
BR		 368/* debugfs: antenna */
369
370static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
371 size_t count, loff_t *ppos)
372{
373 struct ath5k_softc *sc = file->private_data;
374 char buf[700];
375 unsigned int len = 0;
376 unsigned int i;
377 unsigned int v;
378
379 len += snprintf(buf+len, sizeof(buf)-len, "antenna mode\t%d\n",
380 sc->ah->ah_ant_mode);
381 len += snprintf(buf+len, sizeof(buf)-len, "default antenna\t%d\n",
382 sc->ah->ah_def_ant);
383 len += snprintf(buf+len, sizeof(buf)-len, "tx antenna\t%d\n",
384 sc->ah->ah_tx_ant);
385
386 len += snprintf(buf+len, sizeof(buf)-len, "\nANTENNA\t\tRX\tTX\n");
387 for (i = 1; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) {
388 len += snprintf(buf+len, sizeof(buf)-len,
389 "[antenna %d]\t%d\t%d\n",
390 i, sc->stats.antenna_rx[i], sc->stats.antenna_tx[i]);
391 }
392 len += snprintf(buf+len, sizeof(buf)-len, "[invalid]\t%d\t%d\n",
393 sc->stats.antenna_rx[0], sc->stats.antenna_tx[0]);
394
395 v = ath5k_hw_reg_read(sc->ah, AR5K_DEFAULT_ANTENNA);
396 len += snprintf(buf+len, sizeof(buf)-len,
397 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
398
399 v = ath5k_hw_reg_read(sc->ah, AR5K_STA_ID1);
400 len += snprintf(buf+len, sizeof(buf)-len,
401 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
402 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
403 len += snprintf(buf+len, sizeof(buf)-len,
404 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
405 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
406 len += snprintf(buf+len, sizeof(buf)-len,
407 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
408 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
409 len += snprintf(buf+len, sizeof(buf)-len,
410 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
411 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
412
413 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_AGCCTL);
414 len += snprintf(buf+len, sizeof(buf)-len,
415 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
416 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
417
418 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_RESTART);
419 len += snprintf(buf+len, sizeof(buf)-len,
420 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
421 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
422
423 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_FAST_ANT_DIV);
424 len += snprintf(buf+len, sizeof(buf)-len,
425 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
426 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
427
0ca74027
BR		 428 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
429 len += snprintf(buf+len, sizeof(buf)-len,
430 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
431 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
432 len += snprintf(buf+len, sizeof(buf)-len,
433 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
434
604eeadd
BR		 435 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
436}
437
438static ssize_t write_file_antenna(struct file *file,
439 const char __user *userbuf,
440 size_t count, loff_t *ppos)
441{
442 struct ath5k_softc *sc = file->private_data;
443 unsigned int i;
444 char buf[20];
445
446 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
447 return -EFAULT;
448
449 if (strncmp(buf, "diversity", 9) == 0) {
450 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_DEFAULT);
451 printk(KERN_INFO "ath5k debug: enable diversity\n");
452 } else if (strncmp(buf, "fixed-a", 7) == 0) {
453 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_A);
454 printk(KERN_INFO "ath5k debugfs: fixed antenna A\n");
455 } else if (strncmp(buf, "fixed-b", 7) == 0) {
456 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_B);
457 printk(KERN_INFO "ath5k debug: fixed antenna B\n");
458 } else if (strncmp(buf, "clear", 5) == 0) {
459 for (i = 0; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) {
460 sc->stats.antenna_rx[i] = 0;
461 sc->stats.antenna_tx[i] = 0;
462 }
463 printk(KERN_INFO "ath5k debug: cleared antenna stats\n");
464 }
465 return count;
466}
467
468static const struct file_operations fops_antenna = {
469 .read = read_file_antenna,
470 .write = write_file_antenna,
471 .open = ath5k_debugfs_open,
472 .owner = THIS_MODULE,
473};
474
475
7644395f
BR		 476/* debugfs: frameerrors */
477
478static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
479 size_t count, loff_t *ppos)
480{
481 struct ath5k_softc *sc = file->private_data;
482 struct ath5k_statistics *st = &sc->stats;
483 char buf[700];
484 unsigned int len = 0;
da35111a 485 int i;
7644395f
BR		 486
487 len += snprintf(buf+len, sizeof(buf)-len,
488 "RX\n---------------------\n");
489 len += snprintf(buf+len, sizeof(buf)-len, "CRC\t%d\t(%d%%)\n",
490 st->rxerr_crc,
491 st->rx_all_count > 0 ?
492 st->rxerr_crc*100/st->rx_all_count : 0);
493 len += snprintf(buf+len, sizeof(buf)-len, "PHY\t%d\t(%d%%)\n",
494 st->rxerr_phy,
495 st->rx_all_count > 0 ?
496 st->rxerr_phy*100/st->rx_all_count : 0);
da35111a
BR		 497 for (i = 0; i < 32; i++) {
498 if (st->rxerr_phy_code[i])
499 len += snprintf(buf+len, sizeof(buf)-len,
500 " phy_err[%d]\t%d\n",
501 i, st->rxerr_phy_code[i]);
502 }
503
7644395f
BR		 504 len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%d\t(%d%%)\n",
505 st->rxerr_fifo,
506 st->rx_all_count > 0 ?
507 st->rxerr_fifo*100/st->rx_all_count : 0);
508 len += snprintf(buf+len, sizeof(buf)-len, "decrypt\t%d\t(%d%%)\n",
509 st->rxerr_decrypt,
510 st->rx_all_count > 0 ?
511 st->rxerr_decrypt*100/st->rx_all_count : 0);
512 len += snprintf(buf+len, sizeof(buf)-len, "MIC\t%d\t(%d%%)\n",
513 st->rxerr_mic,
514 st->rx_all_count > 0 ?
515 st->rxerr_mic*100/st->rx_all_count : 0);
516 len += snprintf(buf+len, sizeof(buf)-len, "process\t%d\t(%d%%)\n",
517 st->rxerr_proc,
518 st->rx_all_count > 0 ?
519 st->rxerr_proc*100/st->rx_all_count : 0);
520 len += snprintf(buf+len, sizeof(buf)-len, "jumbo\t%d\t(%d%%)\n",
521 st->rxerr_jumbo,
522 st->rx_all_count > 0 ?
523 st->rxerr_jumbo*100/st->rx_all_count : 0);
524 len += snprintf(buf+len, sizeof(buf)-len, "[RX all\t%d]\n",
525 st->rx_all_count);
526
527 len += snprintf(buf+len, sizeof(buf)-len,
528 "\nTX\n---------------------\n");
529 len += snprintf(buf+len, sizeof(buf)-len, "retry\t%d\t(%d%%)\n",
530 st->txerr_retry,
531 st->tx_all_count > 0 ?
532 st->txerr_retry*100/st->tx_all_count : 0);
533 len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%d\t(%d%%)\n",
534 st->txerr_fifo,
535 st->tx_all_count > 0 ?
536 st->txerr_fifo*100/st->tx_all_count : 0);
537 len += snprintf(buf+len, sizeof(buf)-len, "filter\t%d\t(%d%%)\n",
538 st->txerr_filt,
539 st->tx_all_count > 0 ?
540 st->txerr_filt*100/st->tx_all_count : 0);
541 len += snprintf(buf+len, sizeof(buf)-len, "[TX all\t%d]\n",
542 st->tx_all_count);
543
544 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
545}
546
547static ssize_t write_file_frameerrors(struct file *file,
548 const char __user *userbuf,
549 size_t count, loff_t *ppos)
550{
551 struct ath5k_softc *sc = file->private_data;
552 struct ath5k_statistics *st = &sc->stats;
553 char buf[20];
554
555 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
556 return -EFAULT;
557
558 if (strncmp(buf, "clear", 5) == 0) {
559 st->rxerr_crc = 0;
560 st->rxerr_phy = 0;
561 st->rxerr_fifo = 0;
562 st->rxerr_decrypt = 0;
563 st->rxerr_mic = 0;
564 st->rxerr_proc = 0;
565 st->rxerr_jumbo = 0;
566 st->rx_all_count = 0;
567 st->txerr_retry = 0;
568 st->txerr_fifo = 0;
569 st->txerr_filt = 0;
570 st->tx_all_count = 0;
571 printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n");
572 }
573 return count;
574}
575
576static const struct file_operations fops_frameerrors = {
577 .read = read_file_frameerrors,
578 .write = write_file_frameerrors,
579 .open = ath5k_debugfs_open,
580 .owner = THIS_MODULE,
581};
582
583
2111ac0d
BR		 584/* debugfs: ani */
585
586static ssize_t read_file_ani(struct file *file, char __user *user_buf,
587 size_t count, loff_t *ppos)
588{
589 struct ath5k_softc *sc = file->private_data;
590 struct ath5k_statistics *st = &sc->stats;
591 struct ath5k_ani_state *as = &sc->ani_state;
592
593 char buf[700];
594 unsigned int len = 0;
595
596 len += snprintf(buf+len, sizeof(buf)-len,
597 "HW has PHY error counters:\t%s\n",
598 sc->ah->ah_capabilities.cap_has_phyerr_counters ?
599 "yes" : "no");
600 len += snprintf(buf+len, sizeof(buf)-len,
601 "HW max spur immunity level:\t%d\n",
602 as->max_spur_level);
603 len += snprintf(buf+len, sizeof(buf)-len,
604 "\nANI state\n--------------------------------------------\n");
605 len += snprintf(buf+len, sizeof(buf)-len, "operating mode:\t\t\t");
606 switch (as->ani_mode) {
607 case ATH5K_ANI_MODE_OFF:
608 len += snprintf(buf+len, sizeof(buf)-len, "OFF\n");
609 break;
610 case ATH5K_ANI_MODE_MANUAL_LOW:
611 len += snprintf(buf+len, sizeof(buf)-len,
612 "MANUAL LOW\n");
613 break;
614 case ATH5K_ANI_MODE_MANUAL_HIGH:
615 len += snprintf(buf+len, sizeof(buf)-len,
616 "MANUAL HIGH\n");
617 break;
618 case ATH5K_ANI_MODE_AUTO:
619 len += snprintf(buf+len, sizeof(buf)-len, "AUTO\n");
620 break;
621 default:
622 len += snprintf(buf+len, sizeof(buf)-len,
623 "??? (not good)\n");
624 break;
625 }
626 len += snprintf(buf+len, sizeof(buf)-len,
627 "noise immunity level:\t\t%d\n",
628 as->noise_imm_level);
629 len += snprintf(buf+len, sizeof(buf)-len,
630 "spur immunity level:\t\t%d\n",
631 as->spur_level);
632 len += snprintf(buf+len, sizeof(buf)-len, "firstep level:\t\t\t%d\n",
633 as->firstep_level);
634 len += snprintf(buf+len, sizeof(buf)-len,
635 "OFDM weak signal detection:\t%s\n",
636 as->ofdm_weak_sig ? "on" : "off");
637 len += snprintf(buf+len, sizeof(buf)-len,
638 "CCK weak signal detection:\t%s\n",
639 as->cck_weak_sig ? "on" : "off");
640
641 len += snprintf(buf+len, sizeof(buf)-len,
642 "\nMIB INTERRUPTS:\t\t%u\n",
643 st->mib_intr);
644 len += snprintf(buf+len, sizeof(buf)-len,
645 "beacon RSSI average:\t%d\n",
646 sc->ah->ah_beacon_rssi_avg.avg);
647 len += snprintf(buf+len, sizeof(buf)-len, "profcnt tx\t\t%u\t(%d%%)\n",
648 as->pfc_tx,
649 as->pfc_cycles > 0 ?
650 as->pfc_tx*100/as->pfc_cycles : 0);
651 len += snprintf(buf+len, sizeof(buf)-len, "profcnt rx\t\t%u\t(%d%%)\n",
652 as->pfc_rx,
653 as->pfc_cycles > 0 ?
654 as->pfc_rx*100/as->pfc_cycles : 0);
655 len += snprintf(buf+len, sizeof(buf)-len, "profcnt busy\t\t%u\t(%d%%)\n",
656 as->pfc_busy,
657 as->pfc_cycles > 0 ?
658 as->pfc_busy*100/as->pfc_cycles : 0);
659 len += snprintf(buf+len, sizeof(buf)-len, "profcnt cycles\t\t%u\n",
660 as->pfc_cycles);
661 len += snprintf(buf+len, sizeof(buf)-len,
662 "listen time\t\t%d\tlast: %d\n",
663 as->listen_time, as->last_listen);
664 len += snprintf(buf+len, sizeof(buf)-len,
665 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
666 as->ofdm_errors, as->last_ofdm_errors,
667 as->sum_ofdm_errors);
668 len += snprintf(buf+len, sizeof(buf)-len,
669 "CCK errors\t\t%u\tlast: %u\tsum: %u\n",
670 as->cck_errors, as->last_cck_errors,
671 as->sum_cck_errors);
672 len += snprintf(buf+len, sizeof(buf)-len,
673 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
674 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1),
675 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
676 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1)));
677 len += snprintf(buf+len, sizeof(buf)-len,
678 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
679 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2),
680 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
681 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2)));
682
683 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
684}
685
686static ssize_t write_file_ani(struct file *file,
687 const char __user *userbuf,
688 size_t count, loff_t *ppos)
689{
690 struct ath5k_softc *sc = file->private_data;
691 char buf[20];
692
693 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
694 return -EFAULT;
695
696 if (strncmp(buf, "sens-low", 8) == 0) {
697 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_HIGH);
698 } else if (strncmp(buf, "sens-high", 9) == 0) {
699 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_LOW);
700 } else if (strncmp(buf, "ani-off", 7) == 0) {
701 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_OFF);
702 } else if (strncmp(buf, "ani-on", 6) == 0) {
703 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_AUTO);
704 } else if (strncmp(buf, "noise-low", 9) == 0) {
705 ath5k_ani_set_noise_immunity_level(sc->ah, 0);
706 } else if (strncmp(buf, "noise-high", 10) == 0) {
707 ath5k_ani_set_noise_immunity_level(sc->ah,
708 ATH5K_ANI_MAX_NOISE_IMM_LVL);
709 } else if (strncmp(buf, "spur-low", 8) == 0) {
710 ath5k_ani_set_spur_immunity_level(sc->ah, 0);
711 } else if (strncmp(buf, "spur-high", 9) == 0) {
712 ath5k_ani_set_spur_immunity_level(sc->ah,
713 sc->ani_state.max_spur_level);
714 } else if (strncmp(buf, "fir-low", 7) == 0) {
715 ath5k_ani_set_firstep_level(sc->ah, 0);
716 } else if (strncmp(buf, "fir-high", 8) == 0) {
717 ath5k_ani_set_firstep_level(sc->ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
718 } else if (strncmp(buf, "ofdm-off", 8) == 0) {
719 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, false);
720 } else if (strncmp(buf, "ofdm-on", 7) == 0) {
721 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, true);
722 } else if (strncmp(buf, "cck-off", 7) == 0) {
723 ath5k_ani_set_cck_weak_signal_detection(sc->ah, false);
724 } else if (strncmp(buf, "cck-on", 6) == 0) {
725 ath5k_ani_set_cck_weak_signal_detection(sc->ah, true);
726 }
727 return count;
728}
729
730static const struct file_operations fops_ani = {
731 .read = read_file_ani,
732 .write = write_file_ani,
733 .open = ath5k_debugfs_open,
734 .owner = THIS_MODULE,
735};
736
737
3cfd43f4
BR		 738/* debugfs: queues etc */
739
740static ssize_t read_file_queue(struct file *file, char __user *user_buf,
741 size_t count, loff_t *ppos)
742{
743 struct ath5k_softc *sc = file->private_data;
744 char buf[700];
745 unsigned int len = 0;
746
747 struct ath5k_txq *txq;
748 struct ath5k_buf *bf, *bf0;
749 int i, n = 0;
750
751 len += snprintf(buf+len, sizeof(buf)-len,
752 "available txbuffers: %d\n", sc->txbuf_len);
753
754 for (i = 0; i < ARRAY_SIZE(sc->txqs); i++) {
755 txq = &sc->txqs[i];
756
757 len += snprintf(buf+len, sizeof(buf)-len,
758 "%02d: %ssetup\n", i, txq->setup ? "" : "not ");
759
760 if (!txq->setup)
761 continue;
762
763 list_for_each_entry_safe(bf, bf0, &txq->q, list)
764 n++;
765 len += snprintf(buf+len, sizeof(buf)-len, " len: %d\n", n);
766 }
767
768 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
769}
770
771static ssize_t write_file_queue(struct file *file,
772 const char __user *userbuf,
773 size_t count, loff_t *ppos)
774{
775 struct ath5k_softc *sc = file->private_data;
776 char buf[20];
777
778 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
779 return -EFAULT;
780
781 if (strncmp(buf, "start", 5) == 0)
782 ieee80211_wake_queues(sc->hw);
783 else if (strncmp(buf, "stop", 4) == 0)
784 ieee80211_stop_queues(sc->hw);
785
786 return count;
787}
788
789
790static const struct file_operations fops_queue = {
791 .read = read_file_queue,
792 .write = write_file_queue,
793 .open = ath5k_debugfs_open,
794 .owner = THIS_MODULE,
795};
796
797
fa1c114f
JS		 798/* init */
799
800void
801ath5k_debug_init(void)
802{
803 ath5k_global_debugfs = debugfs_create_dir("ath5k", NULL);
804}
805
806void
807ath5k_debug_init_device(struct ath5k_softc *sc)
808{
809 sc->debug.level = ath5k_debug;
be9b7259 810
fa1c114f 811 sc->debug.debugfs_phydir = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
be9b7259
BR		 812 ath5k_global_debugfs);
813
31670070
JS		 814 sc->debug.debugfs_debug = debugfs_create_file("debug",
815 S_IWUSR | S_IRUSR,
be9b7259 816 sc->debug.debugfs_phydir, sc, &fops_debug);
fa1c114f 817
31670070 818 sc->debug.debugfs_registers = debugfs_create_file("registers", S_IRUSR,
be9b7259 819 sc->debug.debugfs_phydir, sc, &fops_registers);
fa1c114f 820
31670070
JS		 821 sc->debug.debugfs_beacon = debugfs_create_file("beacon",
822 S_IWUSR | S_IRUSR,
be9b7259 823 sc->debug.debugfs_phydir, sc, &fops_beacon);
fa1c114f 824
33ab625f 825 sc->debug.debugfs_reset = debugfs_create_file("reset", S_IWUSR,
be9b7259 826 sc->debug.debugfs_phydir, sc, &fops_reset);
604eeadd
BR		 827
828 sc->debug.debugfs_antenna = debugfs_create_file("antenna",
829 S_IWUSR | S_IRUSR,
830 sc->debug.debugfs_phydir, sc, &fops_antenna);
7644395f
BR		 831
832 sc->debug.debugfs_frameerrors = debugfs_create_file("frameerrors",
833 S_IWUSR | S_IRUSR,
834 sc->debug.debugfs_phydir, sc,
835 &fops_frameerrors);
2111ac0d
BR		 836
837 sc->debug.debugfs_ani = debugfs_create_file("ani",
838 S_IWUSR | S_IRUSR,
839 sc->debug.debugfs_phydir, sc,
840 &fops_ani);
3cfd43f4
BR		 841
842 sc->debug.debugfs_queue = debugfs_create_file("queue",
843 S_IWUSR | S_IRUSR,
844 sc->debug.debugfs_phydir, sc,
845 &fops_queue);
fa1c114f
JS		 846}
847
848void
849ath5k_debug_finish(void)
850{
851 debugfs_remove(ath5k_global_debugfs);
852}
853
854void
855ath5k_debug_finish_device(struct ath5k_softc *sc)
856{
857 debugfs_remove(sc->debug.debugfs_debug);
858 debugfs_remove(sc->debug.debugfs_registers);
fa1c114f
JS		 859 debugfs_remove(sc->debug.debugfs_beacon);
860 debugfs_remove(sc->debug.debugfs_reset);
604eeadd 861 debugfs_remove(sc->debug.debugfs_antenna);
7644395f 862 debugfs_remove(sc->debug.debugfs_frameerrors);
2111ac0d 863 debugfs_remove(sc->debug.debugfs_ani);
3cfd43f4 864 debugfs_remove(sc->debug.debugfs_queue);
fa1c114f
JS		 865 debugfs_remove(sc->debug.debugfs_phydir);
866}
867
868
869/* functions used in other places */
870
871void
b446197c 872ath5k_debug_dump_bands(struct ath5k_softc *sc)
fa1c114f 873{
b446197c 874 unsigned int b, i;
fa1c114f 875
b446197c 876 if (likely(!(sc->debug.level & ATH5K_DEBUG_DUMPBANDS)))
fa1c114f
JS		 877 return;
878
b446197c
LR		 879 BUG_ON(!sc->sbands);
880
881 for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
882 struct ieee80211_supported_band *band = &sc->sbands[b];
b7fcb5c4 883 char bname[6];
b446197c
LR		 884 switch (band->band) {
885 case IEEE80211_BAND_2GHZ:
886 strcpy(bname, "2 GHz");
887 break;
888 case IEEE80211_BAND_5GHZ:
889 strcpy(bname, "5 GHz");
890 break;
891 default:
892 printk(KERN_DEBUG "Band not supported: %d\n",
893 band->band);
894 return;
895 }
896 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
897 band->n_channels, band->n_bitrates);
fa1c114f 898 printk(KERN_DEBUG " channels:\n");
b446197c 899 for (i = 0; i < band->n_channels; i++)
fa1c114f 900 printk(KERN_DEBUG " %3d %d %.4x %.4x\n",
b446197c
LR		 901 ieee80211_frequency_to_channel(
902 band->channels[i].center_freq),
903 band->channels[i].center_freq,
904 band->channels[i].hw_value,
905 band->channels[i].flags);
fa1c114f 906 printk(KERN_DEBUG " rates:\n");
b446197c 907 for (i = 0; i < band->n_bitrates; i++)
fa1c114f 908 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n",
b446197c
LR		 909 band->bitrates[i].bitrate,
910 band->bitrates[i].hw_value,
911 band->bitrates[i].flags,
912 band->bitrates[i].hw_value_short);
fa1c114f
JS		 913 }
914}
915
916static inline void
b47f407b
BR		 917ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
918 struct ath5k_rx_status *rs)
fa1c114f
JS		 919{
920 struct ath5k_desc *ds = bf->desc;
19fd6e55 921 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
fa1c114f
JS		 922
923 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
924 ds, (unsigned long long)bf->daddr,
19fd6e55
BR		 925 ds->ds_link, ds->ds_data,
926 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
927 rd->u.rx_stat.rx_status_0, rd->u.rx_stat.rx_status_0,
b47f407b 928 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
fa1c114f
JS		 929}
930
931void
932ath5k_debug_printrxbuffs(struct ath5k_softc *sc, struct ath5k_hw *ah)
933{
934 struct ath5k_desc *ds;
935 struct ath5k_buf *bf;
b47f407b 936 struct ath5k_rx_status rs = {};
fa1c114f
JS		 937 int status;
938
be9b7259 939 if (likely(!(sc->debug.level & ATH5K_DEBUG_RESET)))
fa1c114f
JS		 940 return;
941
942 printk(KERN_DEBUG "rx queue %x, link %p\n",
c6e387a2 943 ath5k_hw_get_rxdp(ah), sc->rxlink);
fa1c114f
JS		 944
945 spin_lock_bh(&sc->rxbuflock);
946 list_for_each_entry(bf, &sc->rxbuf, list) {
947 ds = bf->desc;
b47f407b 948 status = ah->ah_proc_rx_desc(ah, ds, &rs);
be9b7259 949 if (!status)
b47f407b 950 ath5k_debug_printrxbuf(bf, status == 0, &rs);
fa1c114f
JS		 951 }
952 spin_unlock_bh(&sc->rxbuflock);
953}
954
955void
956ath5k_debug_dump_skb(struct ath5k_softc *sc,
957 struct sk_buff *skb, const char *prefix, int tx)
958{
959 char buf[16];
960
961 if (likely(!((tx && (sc->debug.level & ATH5K_DEBUG_DUMP_TX)) ||
962 (!tx && (sc->debug.level & ATH5K_DEBUG_DUMP_RX)))))
963 return;
964
965 snprintf(buf, sizeof(buf), "%s %s", wiphy_name(sc->hw->wiphy), prefix);
966
967 print_hex_dump_bytes(buf, DUMP_PREFIX_NONE, skb->data,
968 min(200U, skb->len));
969
970 printk(KERN_DEBUG "\n");
971}
972
973void
b47f407b 974ath5k_debug_printtxbuf(struct ath5k_softc *sc, struct ath5k_buf *bf)
fa1c114f
JS		 975{
976 struct ath5k_desc *ds = bf->desc;
19fd6e55 977 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
b47f407b
BR		 978 struct ath5k_tx_status ts = {};
979 int done;
fa1c114f
JS		 980
981 if (likely(!(sc->debug.level & ATH5K_DEBUG_RESET)))
982 return;
983
b47f407b
BR		 984 done = sc->ah->ah_proc_tx_desc(sc->ah, bf->desc, &ts);
985
fa1c114f
JS		 986 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
987 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
19fd6e55
BR		 988 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
989 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
990 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
b47f407b 991 done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
fa1c114f
JS		 992}
993
b446197c 994#endif /* ifdef CONFIG_ATH5K_DEBUG */
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