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ath9k: snprintf() returns largish values
[deliverable/linux.git] / drivers / net / wireless / ath / ath5k / debug.c
CommitLineData
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;
8d67a031 281 ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
5faaff74 282 ieee80211_queue_work(sc->hw, &sc->reset_work);
fa1c114f
JS		 283 return count;
284}
285
286static const struct file_operations fops_reset = {
287 .write = write_file_reset,
288 .open = ath5k_debugfs_open,
289 .owner = THIS_MODULE,
290};
291
292
be9b7259
BR		 293/* debugfs: debug level */
294
2c91108c 295static const struct {
be9b7259
BR		 296 enum ath5k_debug_level level;
297 const char *name;
298 const char *desc;
299} dbg_info[] = {
300 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" },
301 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" },
302 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" },
303 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" },
304 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" },
305 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" },
306 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" },
85519a65 307 { ATH5K_DEBUG_LED, "led", "LED management" },
be9b7259
BR		 308 { ATH5K_DEBUG_DUMP_RX, "dumprx", "print received skb content" },
309 { ATH5K_DEBUG_DUMP_TX, "dumptx", "print transmit skb content" },
b446197c 310 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" },
2111ac0d 311 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" },
be9b7259
BR		 312 { ATH5K_DEBUG_ANY, "all", "show all debug levels" },
313};
314
315static ssize_t read_file_debug(struct file *file, char __user *user_buf,
316 size_t count, loff_t *ppos)
317{
318 struct ath5k_softc *sc = file->private_data;
319 char buf[700];
320 unsigned int len = 0;
321 unsigned int i;
322
323 len += snprintf(buf+len, sizeof(buf)-len,
324 "DEBUG LEVEL: 0x%08x\n\n", sc->debug.level);
325
326 for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
327 len += snprintf(buf+len, sizeof(buf)-len,
328 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
329 sc->debug.level & dbg_info[i].level ? '+' : ' ',
330 dbg_info[i].level, dbg_info[i].desc);
331 }
332 len += snprintf(buf+len, sizeof(buf)-len,
333 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
334 sc->debug.level == dbg_info[i].level ? '+' : ' ',
335 dbg_info[i].level, dbg_info[i].desc);
336
337 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
338}
339
340static ssize_t write_file_debug(struct file *file,
341 const char __user *userbuf,
342 size_t count, loff_t *ppos)
343{
344 struct ath5k_softc *sc = file->private_data;
345 unsigned int i;
346 char buf[20];
347
348 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
349 return -EFAULT;
350
351 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
352 if (strncmp(buf, dbg_info[i].name,
353 strlen(dbg_info[i].name)) == 0) {
354 sc->debug.level ^= dbg_info[i].level; /* toggle bit */
355 break;
356 }
357 }
358 return count;
359}
360
361static const struct file_operations fops_debug = {
362 .read = read_file_debug,
363 .write = write_file_debug,
364 .open = ath5k_debugfs_open,
365 .owner = THIS_MODULE,
366};
367
368
604eeadd
BR		 369/* debugfs: antenna */
370
371static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
372 size_t count, loff_t *ppos)
373{
374 struct ath5k_softc *sc = file->private_data;
375 char buf[700];
376 unsigned int len = 0;
377 unsigned int i;
378 unsigned int v;
379
380 len += snprintf(buf+len, sizeof(buf)-len, "antenna mode\t%d\n",
381 sc->ah->ah_ant_mode);
382 len += snprintf(buf+len, sizeof(buf)-len, "default antenna\t%d\n",
383 sc->ah->ah_def_ant);
384 len += snprintf(buf+len, sizeof(buf)-len, "tx antenna\t%d\n",
385 sc->ah->ah_tx_ant);
386
387 len += snprintf(buf+len, sizeof(buf)-len, "\nANTENNA\t\tRX\tTX\n");
388 for (i = 1; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) {
389 len += snprintf(buf+len, sizeof(buf)-len,
390 "[antenna %d]\t%d\t%d\n",
391 i, sc->stats.antenna_rx[i], sc->stats.antenna_tx[i]);
392 }
393 len += snprintf(buf+len, sizeof(buf)-len, "[invalid]\t%d\t%d\n",
394 sc->stats.antenna_rx[0], sc->stats.antenna_tx[0]);
395
396 v = ath5k_hw_reg_read(sc->ah, AR5K_DEFAULT_ANTENNA);
397 len += snprintf(buf+len, sizeof(buf)-len,
398 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
399
400 v = ath5k_hw_reg_read(sc->ah, AR5K_STA_ID1);
401 len += snprintf(buf+len, sizeof(buf)-len,
402 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
403 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
404 len += snprintf(buf+len, sizeof(buf)-len,
405 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
406 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
407 len += snprintf(buf+len, sizeof(buf)-len,
408 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
409 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
410 len += snprintf(buf+len, sizeof(buf)-len,
411 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
412 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
413
414 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_AGCCTL);
415 len += snprintf(buf+len, sizeof(buf)-len,
416 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
417 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
418
419 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_RESTART);
420 len += snprintf(buf+len, sizeof(buf)-len,
421 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
422 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
423
424 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_FAST_ANT_DIV);
425 len += snprintf(buf+len, sizeof(buf)-len,
426 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
427 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
428
0ca74027
BR		 429 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
430 len += snprintf(buf+len, sizeof(buf)-len,
431 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
432 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
433 len += snprintf(buf+len, sizeof(buf)-len,
434 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
435
604eeadd
BR		 436 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
437}
438
439static ssize_t write_file_antenna(struct file *file,
440 const char __user *userbuf,
441 size_t count, loff_t *ppos)
442{
443 struct ath5k_softc *sc = file->private_data;
444 unsigned int i;
445 char buf[20];
446
447 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
448 return -EFAULT;
449
450 if (strncmp(buf, "diversity", 9) == 0) {
451 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_DEFAULT);
452 printk(KERN_INFO "ath5k debug: enable diversity\n");
453 } else if (strncmp(buf, "fixed-a", 7) == 0) {
454 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_A);
455 printk(KERN_INFO "ath5k debugfs: fixed antenna A\n");
456 } else if (strncmp(buf, "fixed-b", 7) == 0) {
457 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_B);
458 printk(KERN_INFO "ath5k debug: fixed antenna B\n");
459 } else if (strncmp(buf, "clear", 5) == 0) {
460 for (i = 0; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) {
461 sc->stats.antenna_rx[i] = 0;
462 sc->stats.antenna_tx[i] = 0;
463 }
464 printk(KERN_INFO "ath5k debug: cleared antenna stats\n");
465 }
466 return count;
467}
468
469static const struct file_operations fops_antenna = {
470 .read = read_file_antenna,
471 .write = write_file_antenna,
472 .open = ath5k_debugfs_open,
473 .owner = THIS_MODULE,
474};
475
476
7644395f
BR		 477/* debugfs: frameerrors */
478
479static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
480 size_t count, loff_t *ppos)
481{
482 struct ath5k_softc *sc = file->private_data;
483 struct ath5k_statistics *st = &sc->stats;
484 char buf[700];
485 unsigned int len = 0;
da35111a 486 int i;
7644395f
BR		 487
488 len += snprintf(buf+len, sizeof(buf)-len,
489 "RX\n---------------------\n");
490 len += snprintf(buf+len, sizeof(buf)-len, "CRC\t%d\t(%d%%)\n",
491 st->rxerr_crc,
492 st->rx_all_count > 0 ?
493 st->rxerr_crc*100/st->rx_all_count : 0);
494 len += snprintf(buf+len, sizeof(buf)-len, "PHY\t%d\t(%d%%)\n",
495 st->rxerr_phy,
496 st->rx_all_count > 0 ?
497 st->rxerr_phy*100/st->rx_all_count : 0);
da35111a
BR		 498 for (i = 0; i < 32; i++) {
499 if (st->rxerr_phy_code[i])
500 len += snprintf(buf+len, sizeof(buf)-len,
501 " phy_err[%d]\t%d\n",
502 i, st->rxerr_phy_code[i]);
503 }
504
7644395f
BR		 505 len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%d\t(%d%%)\n",
506 st->rxerr_fifo,
507 st->rx_all_count > 0 ?
508 st->rxerr_fifo*100/st->rx_all_count : 0);
509 len += snprintf(buf+len, sizeof(buf)-len, "decrypt\t%d\t(%d%%)\n",
510 st->rxerr_decrypt,
511 st->rx_all_count > 0 ?
512 st->rxerr_decrypt*100/st->rx_all_count : 0);
513 len += snprintf(buf+len, sizeof(buf)-len, "MIC\t%d\t(%d%%)\n",
514 st->rxerr_mic,
515 st->rx_all_count > 0 ?
516 st->rxerr_mic*100/st->rx_all_count : 0);
517 len += snprintf(buf+len, sizeof(buf)-len, "process\t%d\t(%d%%)\n",
518 st->rxerr_proc,
519 st->rx_all_count > 0 ?
520 st->rxerr_proc*100/st->rx_all_count : 0);
521 len += snprintf(buf+len, sizeof(buf)-len, "jumbo\t%d\t(%d%%)\n",
522 st->rxerr_jumbo,
523 st->rx_all_count > 0 ?
524 st->rxerr_jumbo*100/st->rx_all_count : 0);
525 len += snprintf(buf+len, sizeof(buf)-len, "[RX all\t%d]\n",
526 st->rx_all_count);
527
528 len += snprintf(buf+len, sizeof(buf)-len,
529 "\nTX\n---------------------\n");
530 len += snprintf(buf+len, sizeof(buf)-len, "retry\t%d\t(%d%%)\n",
531 st->txerr_retry,
532 st->tx_all_count > 0 ?
533 st->txerr_retry*100/st->tx_all_count : 0);
534 len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%d\t(%d%%)\n",
535 st->txerr_fifo,
536 st->tx_all_count > 0 ?
537 st->txerr_fifo*100/st->tx_all_count : 0);
538 len += snprintf(buf+len, sizeof(buf)-len, "filter\t%d\t(%d%%)\n",
539 st->txerr_filt,
540 st->tx_all_count > 0 ?
541 st->txerr_filt*100/st->tx_all_count : 0);
542 len += snprintf(buf+len, sizeof(buf)-len, "[TX all\t%d]\n",
543 st->tx_all_count);
544
545 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
546}
547
548static ssize_t write_file_frameerrors(struct file *file,
549 const char __user *userbuf,
550 size_t count, loff_t *ppos)
551{
552 struct ath5k_softc *sc = file->private_data;
553 struct ath5k_statistics *st = &sc->stats;
554 char buf[20];
555
556 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
557 return -EFAULT;
558
559 if (strncmp(buf, "clear", 5) == 0) {
560 st->rxerr_crc = 0;
561 st->rxerr_phy = 0;
562 st->rxerr_fifo = 0;
563 st->rxerr_decrypt = 0;
564 st->rxerr_mic = 0;
565 st->rxerr_proc = 0;
566 st->rxerr_jumbo = 0;
567 st->rx_all_count = 0;
568 st->txerr_retry = 0;
569 st->txerr_fifo = 0;
570 st->txerr_filt = 0;
571 st->tx_all_count = 0;
572 printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n");
573 }
574 return count;
575}
576
577static const struct file_operations fops_frameerrors = {
578 .read = read_file_frameerrors,
579 .write = write_file_frameerrors,
580 .open = ath5k_debugfs_open,
581 .owner = THIS_MODULE,
582};
583
584
2111ac0d
BR		 585/* debugfs: ani */
586
587static ssize_t read_file_ani(struct file *file, char __user *user_buf,
588 size_t count, loff_t *ppos)
589{
590 struct ath5k_softc *sc = file->private_data;
591 struct ath5k_statistics *st = &sc->stats;
592 struct ath5k_ani_state *as = &sc->ani_state;
593
594 char buf[700];
595 unsigned int len = 0;
596
597 len += snprintf(buf+len, sizeof(buf)-len,
598 "HW has PHY error counters:\t%s\n",
599 sc->ah->ah_capabilities.cap_has_phyerr_counters ?
600 "yes" : "no");
601 len += snprintf(buf+len, sizeof(buf)-len,
602 "HW max spur immunity level:\t%d\n",
603 as->max_spur_level);
604 len += snprintf(buf+len, sizeof(buf)-len,
605 "\nANI state\n--------------------------------------------\n");
606 len += snprintf(buf+len, sizeof(buf)-len, "operating mode:\t\t\t");
607 switch (as->ani_mode) {
608 case ATH5K_ANI_MODE_OFF:
609 len += snprintf(buf+len, sizeof(buf)-len, "OFF\n");
610 break;
611 case ATH5K_ANI_MODE_MANUAL_LOW:
612 len += snprintf(buf+len, sizeof(buf)-len,
613 "MANUAL LOW\n");
614 break;
615 case ATH5K_ANI_MODE_MANUAL_HIGH:
616 len += snprintf(buf+len, sizeof(buf)-len,
617 "MANUAL HIGH\n");
618 break;
619 case ATH5K_ANI_MODE_AUTO:
620 len += snprintf(buf+len, sizeof(buf)-len, "AUTO\n");
621 break;
622 default:
623 len += snprintf(buf+len, sizeof(buf)-len,
624 "??? (not good)\n");
625 break;
626 }
627 len += snprintf(buf+len, sizeof(buf)-len,
628 "noise immunity level:\t\t%d\n",
629 as->noise_imm_level);
630 len += snprintf(buf+len, sizeof(buf)-len,
631 "spur immunity level:\t\t%d\n",
632 as->spur_level);
633 len += snprintf(buf+len, sizeof(buf)-len, "firstep level:\t\t\t%d\n",
634 as->firstep_level);
635 len += snprintf(buf+len, sizeof(buf)-len,
636 "OFDM weak signal detection:\t%s\n",
637 as->ofdm_weak_sig ? "on" : "off");
638 len += snprintf(buf+len, sizeof(buf)-len,
639 "CCK weak signal detection:\t%s\n",
640 as->cck_weak_sig ? "on" : "off");
641
642 len += snprintf(buf+len, sizeof(buf)-len,
643 "\nMIB INTERRUPTS:\t\t%u\n",
644 st->mib_intr);
645 len += snprintf(buf+len, sizeof(buf)-len,
646 "beacon RSSI average:\t%d\n",
647 sc->ah->ah_beacon_rssi_avg.avg);
648 len += snprintf(buf+len, sizeof(buf)-len, "profcnt tx\t\t%u\t(%d%%)\n",
649 as->pfc_tx,
650 as->pfc_cycles > 0 ?
651 as->pfc_tx*100/as->pfc_cycles : 0);
652 len += snprintf(buf+len, sizeof(buf)-len, "profcnt rx\t\t%u\t(%d%%)\n",
653 as->pfc_rx,
654 as->pfc_cycles > 0 ?
655 as->pfc_rx*100/as->pfc_cycles : 0);
656 len += snprintf(buf+len, sizeof(buf)-len, "profcnt busy\t\t%u\t(%d%%)\n",
657 as->pfc_busy,
658 as->pfc_cycles > 0 ?
659 as->pfc_busy*100/as->pfc_cycles : 0);
660 len += snprintf(buf+len, sizeof(buf)-len, "profcnt cycles\t\t%u\n",
661 as->pfc_cycles);
662 len += snprintf(buf+len, sizeof(buf)-len,
663 "listen time\t\t%d\tlast: %d\n",
664 as->listen_time, as->last_listen);
665 len += snprintf(buf+len, sizeof(buf)-len,
666 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
667 as->ofdm_errors, as->last_ofdm_errors,
668 as->sum_ofdm_errors);
669 len += snprintf(buf+len, sizeof(buf)-len,
670 "CCK errors\t\t%u\tlast: %u\tsum: %u\n",
671 as->cck_errors, as->last_cck_errors,
672 as->sum_cck_errors);
673 len += snprintf(buf+len, sizeof(buf)-len,
674 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
675 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1),
676 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
677 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1)));
678 len += snprintf(buf+len, sizeof(buf)-len,
679 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
680 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2),
681 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
682 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2)));
683
684 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
685}
686
687static ssize_t write_file_ani(struct file *file,
688 const char __user *userbuf,
689 size_t count, loff_t *ppos)
690{
691 struct ath5k_softc *sc = file->private_data;
692 char buf[20];
693
694 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
695 return -EFAULT;
696
697 if (strncmp(buf, "sens-low", 8) == 0) {
698 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_HIGH);
699 } else if (strncmp(buf, "sens-high", 9) == 0) {
700 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_LOW);
701 } else if (strncmp(buf, "ani-off", 7) == 0) {
702 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_OFF);
703 } else if (strncmp(buf, "ani-on", 6) == 0) {
704 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_AUTO);
705 } else if (strncmp(buf, "noise-low", 9) == 0) {
706 ath5k_ani_set_noise_immunity_level(sc->ah, 0);
707 } else if (strncmp(buf, "noise-high", 10) == 0) {
708 ath5k_ani_set_noise_immunity_level(sc->ah,
709 ATH5K_ANI_MAX_NOISE_IMM_LVL);
710 } else if (strncmp(buf, "spur-low", 8) == 0) {
711 ath5k_ani_set_spur_immunity_level(sc->ah, 0);
712 } else if (strncmp(buf, "spur-high", 9) == 0) {
713 ath5k_ani_set_spur_immunity_level(sc->ah,
714 sc->ani_state.max_spur_level);
715 } else if (strncmp(buf, "fir-low", 7) == 0) {
716 ath5k_ani_set_firstep_level(sc->ah, 0);
717 } else if (strncmp(buf, "fir-high", 8) == 0) {
718 ath5k_ani_set_firstep_level(sc->ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
719 } else if (strncmp(buf, "ofdm-off", 8) == 0) {
720 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, false);
721 } else if (strncmp(buf, "ofdm-on", 7) == 0) {
722 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, true);
723 } else if (strncmp(buf, "cck-off", 7) == 0) {
724 ath5k_ani_set_cck_weak_signal_detection(sc->ah, false);
725 } else if (strncmp(buf, "cck-on", 6) == 0) {
726 ath5k_ani_set_cck_weak_signal_detection(sc->ah, true);
727 }
728 return count;
729}
730
731static const struct file_operations fops_ani = {
732 .read = read_file_ani,
733 .write = write_file_ani,
734 .open = ath5k_debugfs_open,
735 .owner = THIS_MODULE,
736};
737
738
3cfd43f4
BR		 739/* debugfs: queues etc */
740
741static ssize_t read_file_queue(struct file *file, char __user *user_buf,
742 size_t count, loff_t *ppos)
743{
744 struct ath5k_softc *sc = file->private_data;
745 char buf[700];
746 unsigned int len = 0;
747
748 struct ath5k_txq *txq;
749 struct ath5k_buf *bf, *bf0;
750 int i, n = 0;
751
752 len += snprintf(buf+len, sizeof(buf)-len,
753 "available txbuffers: %d\n", sc->txbuf_len);
754
755 for (i = 0; i < ARRAY_SIZE(sc->txqs); i++) {
756 txq = &sc->txqs[i];
757
758 len += snprintf(buf+len, sizeof(buf)-len,
759 "%02d: %ssetup\n", i, txq->setup ? "" : "not ");
760
761 if (!txq->setup)
762 continue;
763
764 list_for_each_entry_safe(bf, bf0, &txq->q, list)
765 n++;
766 len += snprintf(buf+len, sizeof(buf)-len, " len: %d\n", n);
767 }
768
769 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
770}
771
772static ssize_t write_file_queue(struct file *file,
773 const char __user *userbuf,
774 size_t count, loff_t *ppos)
775{
776 struct ath5k_softc *sc = file->private_data;
777 char buf[20];
778
779 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
780 return -EFAULT;
781
782 if (strncmp(buf, "start", 5) == 0)
783 ieee80211_wake_queues(sc->hw);
784 else if (strncmp(buf, "stop", 4) == 0)
785 ieee80211_stop_queues(sc->hw);
786
787 return count;
788}
789
790
791static const struct file_operations fops_queue = {
792 .read = read_file_queue,
793 .write = write_file_queue,
794 .open = ath5k_debugfs_open,
795 .owner = THIS_MODULE,
796};
797
798
fa1c114f
JS		 799/* init */
800
801void
802ath5k_debug_init(void)
803{
804 ath5k_global_debugfs = debugfs_create_dir("ath5k", NULL);
805}
806
807void
808ath5k_debug_init_device(struct ath5k_softc *sc)
809{
810 sc->debug.level = ath5k_debug;
be9b7259 811
fa1c114f 812 sc->debug.debugfs_phydir = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
be9b7259
BR		 813 ath5k_global_debugfs);
814
31670070
JS		 815 sc->debug.debugfs_debug = debugfs_create_file("debug",
816 S_IWUSR | S_IRUSR,
be9b7259 817 sc->debug.debugfs_phydir, sc, &fops_debug);
fa1c114f 818
31670070 819 sc->debug.debugfs_registers = debugfs_create_file("registers", S_IRUSR,
be9b7259 820 sc->debug.debugfs_phydir, sc, &fops_registers);
fa1c114f 821
31670070
JS		 822 sc->debug.debugfs_beacon = debugfs_create_file("beacon",
823 S_IWUSR | S_IRUSR,
be9b7259 824 sc->debug.debugfs_phydir, sc, &fops_beacon);
fa1c114f 825
33ab625f 826 sc->debug.debugfs_reset = debugfs_create_file("reset", S_IWUSR,
be9b7259 827 sc->debug.debugfs_phydir, sc, &fops_reset);
604eeadd
BR		 828
829 sc->debug.debugfs_antenna = debugfs_create_file("antenna",
830 S_IWUSR | S_IRUSR,
831 sc->debug.debugfs_phydir, sc, &fops_antenna);
7644395f
BR		 832
833 sc->debug.debugfs_frameerrors = debugfs_create_file("frameerrors",
834 S_IWUSR | S_IRUSR,
835 sc->debug.debugfs_phydir, sc,
836 &fops_frameerrors);
2111ac0d
BR		 837
838 sc->debug.debugfs_ani = debugfs_create_file("ani",
839 S_IWUSR | S_IRUSR,
840 sc->debug.debugfs_phydir, sc,
841 &fops_ani);
3cfd43f4
BR		 842
843 sc->debug.debugfs_queue = debugfs_create_file("queue",
844 S_IWUSR | S_IRUSR,
845 sc->debug.debugfs_phydir, sc,
846 &fops_queue);
fa1c114f
JS		 847}
848
849void
850ath5k_debug_finish(void)
851{
852 debugfs_remove(ath5k_global_debugfs);
853}
854
855void
856ath5k_debug_finish_device(struct ath5k_softc *sc)
857{
858 debugfs_remove(sc->debug.debugfs_debug);
859 debugfs_remove(sc->debug.debugfs_registers);
fa1c114f
JS		 860 debugfs_remove(sc->debug.debugfs_beacon);
861 debugfs_remove(sc->debug.debugfs_reset);
604eeadd 862 debugfs_remove(sc->debug.debugfs_antenna);
7644395f 863 debugfs_remove(sc->debug.debugfs_frameerrors);
2111ac0d 864 debugfs_remove(sc->debug.debugfs_ani);
3cfd43f4 865 debugfs_remove(sc->debug.debugfs_queue);
fa1c114f
JS		 866 debugfs_remove(sc->debug.debugfs_phydir);
867}
868
869
870/* functions used in other places */
871
872void
b446197c 873ath5k_debug_dump_bands(struct ath5k_softc *sc)
fa1c114f 874{
b446197c 875 unsigned int b, i;
fa1c114f 876
b446197c 877 if (likely(!(sc->debug.level & ATH5K_DEBUG_DUMPBANDS)))
fa1c114f
JS		 878 return;
879
b446197c
LR		 880 BUG_ON(!sc->sbands);
881
882 for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
883 struct ieee80211_supported_band *band = &sc->sbands[b];
b7fcb5c4 884 char bname[6];
b446197c
LR		 885 switch (band->band) {
886 case IEEE80211_BAND_2GHZ:
887 strcpy(bname, "2 GHz");
888 break;
889 case IEEE80211_BAND_5GHZ:
890 strcpy(bname, "5 GHz");
891 break;
892 default:
893 printk(KERN_DEBUG "Band not supported: %d\n",
894 band->band);
895 return;
896 }
897 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
898 band->n_channels, band->n_bitrates);
fa1c114f 899 printk(KERN_DEBUG " channels:\n");
b446197c 900 for (i = 0; i < band->n_channels; i++)
fa1c114f 901 printk(KERN_DEBUG " %3d %d %.4x %.4x\n",
b446197c
LR		 902 ieee80211_frequency_to_channel(
903 band->channels[i].center_freq),
904 band->channels[i].center_freq,
905 band->channels[i].hw_value,
906 band->channels[i].flags);
fa1c114f 907 printk(KERN_DEBUG " rates:\n");
b446197c 908 for (i = 0; i < band->n_bitrates; i++)
fa1c114f 909 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n",
b446197c
LR		 910 band->bitrates[i].bitrate,
911 band->bitrates[i].hw_value,
912 band->bitrates[i].flags,
913 band->bitrates[i].hw_value_short);
fa1c114f
JS		 914 }
915}
916
917static inline void
b47f407b
BR		 918ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
919 struct ath5k_rx_status *rs)
fa1c114f
JS		 920{
921 struct ath5k_desc *ds = bf->desc;
19fd6e55 922 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
fa1c114f
JS		 923
924 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
925 ds, (unsigned long long)bf->daddr,
19fd6e55
BR		 926 ds->ds_link, ds->ds_data,
927 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
62412a8f 928 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
b47f407b 929 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
fa1c114f
JS		 930}
931
932void
933ath5k_debug_printrxbuffs(struct ath5k_softc *sc, struct ath5k_hw *ah)
934{
935 struct ath5k_desc *ds;
936 struct ath5k_buf *bf;
b47f407b 937 struct ath5k_rx_status rs = {};
fa1c114f
JS		 938 int status;
939
be9b7259 940 if (likely(!(sc->debug.level & ATH5K_DEBUG_RESET)))
fa1c114f
JS		 941 return;
942
265faadd 943 printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
c6e387a2 944 ath5k_hw_get_rxdp(ah), sc->rxlink);
fa1c114f
JS		 945
946 spin_lock_bh(&sc->rxbuflock);
947 list_for_each_entry(bf, &sc->rxbuf, list) {
948 ds = bf->desc;
b47f407b 949 status = ah->ah_proc_rx_desc(ah, ds, &rs);
be9b7259 950 if (!status)
b47f407b 951 ath5k_debug_printrxbuf(bf, status == 0, &rs);
fa1c114f
JS		 952 }
953 spin_unlock_bh(&sc->rxbuflock);
954}
955
956void
957ath5k_debug_dump_skb(struct ath5k_softc *sc,
958 struct sk_buff *skb, const char *prefix, int tx)
959{
960 char buf[16];
961
962 if (likely(!((tx && (sc->debug.level & ATH5K_DEBUG_DUMP_TX)) ||
963 (!tx && (sc->debug.level & ATH5K_DEBUG_DUMP_RX)))))
964 return;
965
966 snprintf(buf, sizeof(buf), "%s %s", wiphy_name(sc->hw->wiphy), prefix);
967
968 print_hex_dump_bytes(buf, DUMP_PREFIX_NONE, skb->data,
969 min(200U, skb->len));
970
971 printk(KERN_DEBUG "\n");
972}
973
974void
b47f407b 975ath5k_debug_printtxbuf(struct ath5k_softc *sc, struct ath5k_buf *bf)
fa1c114f
JS		 976{
977 struct ath5k_desc *ds = bf->desc;
19fd6e55 978 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
b47f407b
BR		 979 struct ath5k_tx_status ts = {};
980 int done;
fa1c114f
JS		 981
982 if (likely(!(sc->debug.level & ATH5K_DEBUG_RESET)))
983 return;
984
b47f407b
BR		 985 done = sc->ah->ah_proc_tx_desc(sc->ah, bf->desc, &ts);
986
fa1c114f
JS		 987 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
988 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
19fd6e55
BR		 989 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
990 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
991 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
b47f407b 992 done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
fa1c114f
JS		 993}
994
b446197c 995#endif /* ifdef CONFIG_ATH5K_DEBUG */
Linux kernel - Deliverables
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