2 * Copyright (c) 2007-2008 Bruno Randolf <bruno@thinktube.com>
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.
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.
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/>.
18 * This file incorporates work covered by the following copyright and
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>
27 * All rights reserved.
29 * Redistribution and use in source and binary forms, with or without
30 * modification, are permitted provided that the following conditions
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.
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.
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.
61 #include <linux/module.h>
62 #include <linux/seq_file.h>
63 #include <linux/list.h>
69 static unsigned int ath5k_debug;
70 module_param_named(debug, ath5k_debug, uint, 0);
73 static int ath5k_debugfs_open(struct inode *inode, struct file *file)
75 file->private_data = inode->i_private;
80 /* debugfs: registers */
87 #define REG_STRUCT_INIT(r) { #r, r }
89 /* just a few random registers, might want to add more */
90 static const struct reg regs[] = {
91 REG_STRUCT_INIT(AR5K_CR),
92 REG_STRUCT_INIT(AR5K_RXDP),
93 REG_STRUCT_INIT(AR5K_CFG),
94 REG_STRUCT_INIT(AR5K_IER),
95 REG_STRUCT_INIT(AR5K_BCR),
96 REG_STRUCT_INIT(AR5K_RTSD0),
97 REG_STRUCT_INIT(AR5K_RTSD1),
98 REG_STRUCT_INIT(AR5K_TXCFG),
99 REG_STRUCT_INIT(AR5K_RXCFG),
100 REG_STRUCT_INIT(AR5K_RXJLA),
101 REG_STRUCT_INIT(AR5K_MIBC),
102 REG_STRUCT_INIT(AR5K_TOPS),
103 REG_STRUCT_INIT(AR5K_RXNOFRM),
104 REG_STRUCT_INIT(AR5K_TXNOFRM),
105 REG_STRUCT_INIT(AR5K_RPGTO),
106 REG_STRUCT_INIT(AR5K_RFCNT),
107 REG_STRUCT_INIT(AR5K_MISC),
108 REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT),
109 REG_STRUCT_INIT(AR5K_ISR),
110 REG_STRUCT_INIT(AR5K_PISR),
111 REG_STRUCT_INIT(AR5K_SISR0),
112 REG_STRUCT_INIT(AR5K_SISR1),
113 REG_STRUCT_INIT(AR5K_SISR2),
114 REG_STRUCT_INIT(AR5K_SISR3),
115 REG_STRUCT_INIT(AR5K_SISR4),
116 REG_STRUCT_INIT(AR5K_IMR),
117 REG_STRUCT_INIT(AR5K_PIMR),
118 REG_STRUCT_INIT(AR5K_SIMR0),
119 REG_STRUCT_INIT(AR5K_SIMR1),
120 REG_STRUCT_INIT(AR5K_SIMR2),
121 REG_STRUCT_INIT(AR5K_SIMR3),
122 REG_STRUCT_INIT(AR5K_SIMR4),
123 REG_STRUCT_INIT(AR5K_DCM_ADDR),
124 REG_STRUCT_INIT(AR5K_DCCFG),
125 REG_STRUCT_INIT(AR5K_CCFG),
126 REG_STRUCT_INIT(AR5K_CPC0),
127 REG_STRUCT_INIT(AR5K_CPC1),
128 REG_STRUCT_INIT(AR5K_CPC2),
129 REG_STRUCT_INIT(AR5K_CPC3),
130 REG_STRUCT_INIT(AR5K_CPCOVF),
131 REG_STRUCT_INIT(AR5K_RESET_CTL),
132 REG_STRUCT_INIT(AR5K_SLEEP_CTL),
133 REG_STRUCT_INIT(AR5K_INTPEND),
134 REG_STRUCT_INIT(AR5K_SFR),
135 REG_STRUCT_INIT(AR5K_PCICFG),
136 REG_STRUCT_INIT(AR5K_GPIOCR),
137 REG_STRUCT_INIT(AR5K_GPIODO),
138 REG_STRUCT_INIT(AR5K_SREV),
141 static void *reg_start(struct seq_file *seq, loff_t *pos)
143 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;
146 static void reg_stop(struct seq_file *seq, void *p)
151 static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)
154 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;
157 static int reg_show(struct seq_file *seq, void *p)
159 struct ath5k_hw *ah = seq->private;
161 seq_printf(seq, "%-25s0x%08x\n", r->name,
162 ath5k_hw_reg_read(ah, r->addr));
166 static const struct seq_operations register_seq_ops = {
173 static int open_file_registers(struct inode *inode, struct file *file)
177 res = seq_open(file, ®ister_seq_ops);
179 s = file->private_data;
180 s->private = inode->i_private;
185 static const struct file_operations fops_registers = {
186 .open = open_file_registers,
189 .release = seq_release,
190 .owner = THIS_MODULE,
194 /* debugfs: beacons */
196 static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
197 size_t count, loff_t *ppos)
199 struct ath5k_hw *ah = file->private_data;
201 unsigned int len = 0;
205 v = ath5k_hw_reg_read(ah, AR5K_BEACON);
206 len += snprintf(buf + len, sizeof(buf) - len,
207 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
208 "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,
209 (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);
211 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n",
212 "AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP));
214 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n",
215 "AR5K_BEACON_CNT", ath5k_hw_reg_read(ah, AR5K_BEACON_CNT));
217 v = ath5k_hw_reg_read(ah, AR5K_TIMER0);
218 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
219 "AR5K_TIMER0 (TBTT)", v, v);
221 v = ath5k_hw_reg_read(ah, AR5K_TIMER1);
222 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
223 "AR5K_TIMER1 (DMA)", v, v >> 3);
225 v = ath5k_hw_reg_read(ah, AR5K_TIMER2);
226 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
227 "AR5K_TIMER2 (SWBA)", v, v >> 3);
229 v = ath5k_hw_reg_read(ah, AR5K_TIMER3);
230 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
231 "AR5K_TIMER3 (ATIM)", v, v);
233 tsf = ath5k_hw_get_tsf64(ah);
234 len += snprintf(buf + len, sizeof(buf) - len,
235 "TSF\t\t0x%016llx\tTU: %08x\n",
236 (unsigned long long)tsf, TSF_TO_TU(tsf));
238 if (len > sizeof(buf))
241 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
244 static ssize_t write_file_beacon(struct file *file,
245 const char __user *userbuf,
246 size_t count, loff_t *ppos)
248 struct ath5k_hw *ah = file->private_data;
251 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
254 if (strncmp(buf, "disable", 7) == 0) {
255 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
256 printk(KERN_INFO "debugfs disable beacons\n");
257 } else if (strncmp(buf, "enable", 6) == 0) {
258 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
259 printk(KERN_INFO "debugfs enable beacons\n");
264 static const struct file_operations fops_beacon = {
265 .read = read_file_beacon,
266 .write = write_file_beacon,
267 .open = ath5k_debugfs_open,
268 .owner = THIS_MODULE,
269 .llseek = default_llseek,
275 static ssize_t write_file_reset(struct file *file,
276 const char __user *userbuf,
277 size_t count, loff_t *ppos)
279 struct ath5k_hw *ah = file->private_data;
280 ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
281 ieee80211_queue_work(ah->hw, &ah->reset_work);
285 static const struct file_operations fops_reset = {
286 .write = write_file_reset,
287 .open = ath5k_debugfs_open,
288 .owner = THIS_MODULE,
289 .llseek = noop_llseek,
293 /* debugfs: debug level */
295 static const struct {
296 enum ath5k_debug_level level;
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" },
307 { ATH5K_DEBUG_LED, "led", "LED management" },
308 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" },
309 { ATH5K_DEBUG_DMA, "dma", "dma start/stop" },
310 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" },
311 { ATH5K_DEBUG_DESC, "desc", "descriptor chains" },
312 { ATH5K_DEBUG_ANY, "all", "show all debug levels" },
315 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
316 size_t count, loff_t *ppos)
318 struct ath5k_hw *ah = file->private_data;
320 unsigned int len = 0;
323 len += snprintf(buf + len, sizeof(buf) - len,
324 "DEBUG LEVEL: 0x%08x\n\n", ah->debug.level);
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 ah->debug.level & dbg_info[i].level ? '+' : ' ',
330 dbg_info[i].level, dbg_info[i].desc);
332 len += snprintf(buf + len, sizeof(buf) - len,
333 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
334 ah->debug.level == dbg_info[i].level ? '+' : ' ',
335 dbg_info[i].level, dbg_info[i].desc);
337 if (len > sizeof(buf))
340 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
343 static ssize_t write_file_debug(struct file *file,
344 const char __user *userbuf,
345 size_t count, loff_t *ppos)
347 struct ath5k_hw *ah = file->private_data;
351 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
354 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
355 if (strncmp(buf, dbg_info[i].name,
356 strlen(dbg_info[i].name)) == 0) {
357 ah->debug.level ^= dbg_info[i].level; /* toggle bit */
364 static const struct file_operations fops_debug = {
365 .read = read_file_debug,
366 .write = write_file_debug,
367 .open = ath5k_debugfs_open,
368 .owner = THIS_MODULE,
369 .llseek = default_llseek,
373 /* debugfs: antenna */
375 static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
376 size_t count, loff_t *ppos)
378 struct ath5k_hw *ah = file->private_data;
380 unsigned int len = 0;
384 len += snprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n",
386 len += snprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n",
388 len += snprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n",
391 len += snprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n");
392 for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
393 len += snprintf(buf + len, sizeof(buf) - len,
394 "[antenna %d]\t%d\t%d\n",
395 i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]);
397 len += snprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n",
398 ah->stats.antenna_rx[0], ah->stats.antenna_tx[0]);
400 v = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA);
401 len += snprintf(buf + len, sizeof(buf) - len,
402 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
404 v = ath5k_hw_reg_read(ah, AR5K_STA_ID1);
405 len += snprintf(buf + len, sizeof(buf) - len,
406 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
407 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
408 len += snprintf(buf + len, sizeof(buf) - len,
409 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
410 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
411 len += snprintf(buf + len, sizeof(buf) - len,
412 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
413 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
414 len += snprintf(buf + len, sizeof(buf) - len,
415 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
416 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
418 v = ath5k_hw_reg_read(ah, AR5K_PHY_AGCCTL);
419 len += snprintf(buf + len, sizeof(buf) - len,
420 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
421 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
423 v = ath5k_hw_reg_read(ah, AR5K_PHY_RESTART);
424 len += snprintf(buf + len, sizeof(buf) - len,
425 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
426 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
428 v = ath5k_hw_reg_read(ah, AR5K_PHY_FAST_ANT_DIV);
429 len += snprintf(buf + len, sizeof(buf) - len,
430 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
431 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
433 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
434 len += snprintf(buf + len, sizeof(buf) - len,
435 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
436 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
437 len += snprintf(buf + len, sizeof(buf) - len,
438 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
440 if (len > sizeof(buf))
443 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
446 static ssize_t write_file_antenna(struct file *file,
447 const char __user *userbuf,
448 size_t count, loff_t *ppos)
450 struct ath5k_hw *ah = file->private_data;
454 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
457 if (strncmp(buf, "diversity", 9) == 0) {
458 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT);
459 printk(KERN_INFO "ath5k debug: enable diversity\n");
460 } else if (strncmp(buf, "fixed-a", 7) == 0) {
461 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A);
462 printk(KERN_INFO "ath5k debugfs: fixed antenna A\n");
463 } else if (strncmp(buf, "fixed-b", 7) == 0) {
464 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B);
465 printk(KERN_INFO "ath5k debug: fixed antenna B\n");
466 } else if (strncmp(buf, "clear", 5) == 0) {
467 for (i = 0; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
468 ah->stats.antenna_rx[i] = 0;
469 ah->stats.antenna_tx[i] = 0;
471 printk(KERN_INFO "ath5k debug: cleared antenna stats\n");
476 static const struct file_operations fops_antenna = {
477 .read = read_file_antenna,
478 .write = write_file_antenna,
479 .open = ath5k_debugfs_open,
480 .owner = THIS_MODULE,
481 .llseek = default_llseek,
486 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
487 size_t count, loff_t *ppos)
489 struct ath5k_hw *ah = file->private_data;
491 unsigned int len = 0;
492 u32 filt = ath5k_hw_get_rx_filter(ah);
494 len += snprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n",
496 len += snprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ",
498 if (filt & AR5K_RX_FILTER_UCAST)
499 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
500 if (filt & AR5K_RX_FILTER_MCAST)
501 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
502 if (filt & AR5K_RX_FILTER_BCAST)
503 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
504 if (filt & AR5K_RX_FILTER_CONTROL)
505 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
506 if (filt & AR5K_RX_FILTER_BEACON)
507 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
508 if (filt & AR5K_RX_FILTER_PROM)
509 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
510 if (filt & AR5K_RX_FILTER_XRPOLL)
511 len += snprintf(buf + len, sizeof(buf) - len, " XRPOLL");
512 if (filt & AR5K_RX_FILTER_PROBEREQ)
513 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
514 if (filt & AR5K_RX_FILTER_PHYERR_5212)
515 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR-5212");
516 if (filt & AR5K_RX_FILTER_RADARERR_5212)
517 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5212");
518 if (filt & AR5K_RX_FILTER_PHYERR_5211)
519 snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211");
520 if (filt & AR5K_RX_FILTER_RADARERR_5211)
521 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5211");
523 len += snprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n",
524 ath_opmode_to_string(ah->opmode), ah->opmode);
526 if (len > sizeof(buf))
529 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
532 static const struct file_operations fops_misc = {
533 .read = read_file_misc,
534 .open = ath5k_debugfs_open,
535 .owner = THIS_MODULE,
539 /* debugfs: frameerrors */
541 static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
542 size_t count, loff_t *ppos)
544 struct ath5k_hw *ah = file->private_data;
545 struct ath5k_statistics *st = &ah->stats;
547 unsigned int len = 0;
550 len += snprintf(buf + len, sizeof(buf) - len,
551 "RX\n---------------------\n");
552 len += snprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n",
554 st->rx_all_count > 0 ?
555 st->rxerr_crc * 100 / st->rx_all_count : 0);
556 len += snprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n",
558 st->rx_all_count > 0 ?
559 st->rxerr_phy * 100 / st->rx_all_count : 0);
560 for (i = 0; i < 32; i++) {
561 if (st->rxerr_phy_code[i])
562 len += snprintf(buf + len, sizeof(buf) - len,
563 " phy_err[%u]\t%u\n",
564 i, st->rxerr_phy_code[i]);
567 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
569 st->rx_all_count > 0 ?
570 st->rxerr_fifo * 100 / st->rx_all_count : 0);
571 len += snprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n",
573 st->rx_all_count > 0 ?
574 st->rxerr_decrypt * 100 / st->rx_all_count : 0);
575 len += snprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n",
577 st->rx_all_count > 0 ?
578 st->rxerr_mic * 100 / st->rx_all_count : 0);
579 len += snprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n",
581 st->rx_all_count > 0 ?
582 st->rxerr_proc * 100 / st->rx_all_count : 0);
583 len += snprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n",
585 st->rx_all_count > 0 ?
586 st->rxerr_jumbo * 100 / st->rx_all_count : 0);
587 len += snprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n",
589 len += snprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n",
592 len += snprintf(buf + len, sizeof(buf) - len,
593 "\nTX\n---------------------\n");
594 len += snprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n",
596 st->tx_all_count > 0 ?
597 st->txerr_retry * 100 / st->tx_all_count : 0);
598 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
600 st->tx_all_count > 0 ?
601 st->txerr_fifo * 100 / st->tx_all_count : 0);
602 len += snprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n",
604 st->tx_all_count > 0 ?
605 st->txerr_filt * 100 / st->tx_all_count : 0);
606 len += snprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n",
608 len += snprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n",
611 if (len > sizeof(buf))
614 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
617 static ssize_t write_file_frameerrors(struct file *file,
618 const char __user *userbuf,
619 size_t count, loff_t *ppos)
621 struct ath5k_hw *ah = file->private_data;
622 struct ath5k_statistics *st = &ah->stats;
625 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
628 if (strncmp(buf, "clear", 5) == 0) {
632 st->rxerr_decrypt = 0;
636 st->rx_all_count = 0;
640 st->tx_all_count = 0;
641 printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n");
646 static const struct file_operations fops_frameerrors = {
647 .read = read_file_frameerrors,
648 .write = write_file_frameerrors,
649 .open = ath5k_debugfs_open,
650 .owner = THIS_MODULE,
651 .llseek = default_llseek,
657 static ssize_t read_file_ani(struct file *file, char __user *user_buf,
658 size_t count, loff_t *ppos)
660 struct ath5k_hw *ah = file->private_data;
661 struct ath5k_statistics *st = &ah->stats;
662 struct ath5k_ani_state *as = &ah->ani_state;
665 unsigned int len = 0;
667 len += snprintf(buf + len, sizeof(buf) - len,
668 "HW has PHY error counters:\t%s\n",
669 ah->ah_capabilities.cap_has_phyerr_counters ?
671 len += snprintf(buf + len, sizeof(buf) - len,
672 "HW max spur immunity level:\t%d\n",
674 len += snprintf(buf + len, sizeof(buf) - len,
675 "\nANI state\n--------------------------------------------\n");
676 len += snprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t");
677 switch (as->ani_mode) {
678 case ATH5K_ANI_MODE_OFF:
679 len += snprintf(buf + len, sizeof(buf) - len, "OFF\n");
681 case ATH5K_ANI_MODE_MANUAL_LOW:
682 len += snprintf(buf + len, sizeof(buf) - len,
685 case ATH5K_ANI_MODE_MANUAL_HIGH:
686 len += snprintf(buf + len, sizeof(buf) - len,
689 case ATH5K_ANI_MODE_AUTO:
690 len += snprintf(buf + len, sizeof(buf) - len, "AUTO\n");
693 len += snprintf(buf + len, sizeof(buf) - len,
697 len += snprintf(buf + len, sizeof(buf) - len,
698 "noise immunity level:\t\t%d\n",
699 as->noise_imm_level);
700 len += snprintf(buf + len, sizeof(buf) - len,
701 "spur immunity level:\t\t%d\n",
703 len += snprintf(buf + len, sizeof(buf) - len,
704 "firstep level:\t\t\t%d\n",
706 len += snprintf(buf + len, sizeof(buf) - len,
707 "OFDM weak signal detection:\t%s\n",
708 as->ofdm_weak_sig ? "on" : "off");
709 len += snprintf(buf + len, sizeof(buf) - len,
710 "CCK weak signal detection:\t%s\n",
711 as->cck_weak_sig ? "on" : "off");
713 len += snprintf(buf + len, sizeof(buf) - len,
714 "\nMIB INTERRUPTS:\t\t%u\n",
716 len += snprintf(buf + len, sizeof(buf) - len,
717 "beacon RSSI average:\t%d\n",
718 (int)ewma_read(&ah->ah_beacon_rssi_avg));
720 #define CC_PRINT(_struct, _field) \
722 _struct.cycles > 0 ? \
723 _struct._field * 100 / _struct.cycles : 0
725 len += snprintf(buf + len, sizeof(buf) - len,
726 "profcnt tx\t\t%u\t(%d%%)\n",
727 CC_PRINT(as->last_cc, tx_frame));
728 len += snprintf(buf + len, sizeof(buf) - len,
729 "profcnt rx\t\t%u\t(%d%%)\n",
730 CC_PRINT(as->last_cc, rx_frame));
731 len += snprintf(buf + len, sizeof(buf) - len,
732 "profcnt busy\t\t%u\t(%d%%)\n",
733 CC_PRINT(as->last_cc, rx_busy));
735 len += snprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n",
737 len += snprintf(buf + len, sizeof(buf) - len,
738 "listen time\t\t%d\tlast: %d\n",
739 as->listen_time, as->last_listen);
740 len += snprintf(buf + len, sizeof(buf) - len,
741 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
742 as->ofdm_errors, as->last_ofdm_errors,
743 as->sum_ofdm_errors);
744 len += snprintf(buf + len, sizeof(buf) - len,
745 "CCK errors\t\t%u\tlast: %u\tsum: %u\n",
746 as->cck_errors, as->last_cck_errors,
748 len += snprintf(buf + len, sizeof(buf) - len,
749 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
750 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1),
751 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
752 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1)));
753 len += snprintf(buf + len, sizeof(buf) - len,
754 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
755 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2),
756 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
757 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2)));
759 if (len > sizeof(buf))
762 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
765 static ssize_t write_file_ani(struct file *file,
766 const char __user *userbuf,
767 size_t count, loff_t *ppos)
769 struct ath5k_hw *ah = file->private_data;
772 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
775 if (strncmp(buf, "sens-low", 8) == 0) {
776 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_HIGH);
777 } else if (strncmp(buf, "sens-high", 9) == 0) {
778 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_LOW);
779 } else if (strncmp(buf, "ani-off", 7) == 0) {
780 ath5k_ani_init(ah, ATH5K_ANI_MODE_OFF);
781 } else if (strncmp(buf, "ani-on", 6) == 0) {
782 ath5k_ani_init(ah, ATH5K_ANI_MODE_AUTO);
783 } else if (strncmp(buf, "noise-low", 9) == 0) {
784 ath5k_ani_set_noise_immunity_level(ah, 0);
785 } else if (strncmp(buf, "noise-high", 10) == 0) {
786 ath5k_ani_set_noise_immunity_level(ah,
787 ATH5K_ANI_MAX_NOISE_IMM_LVL);
788 } else if (strncmp(buf, "spur-low", 8) == 0) {
789 ath5k_ani_set_spur_immunity_level(ah, 0);
790 } else if (strncmp(buf, "spur-high", 9) == 0) {
791 ath5k_ani_set_spur_immunity_level(ah,
792 ah->ani_state.max_spur_level);
793 } else if (strncmp(buf, "fir-low", 7) == 0) {
794 ath5k_ani_set_firstep_level(ah, 0);
795 } else if (strncmp(buf, "fir-high", 8) == 0) {
796 ath5k_ani_set_firstep_level(ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
797 } else if (strncmp(buf, "ofdm-off", 8) == 0) {
798 ath5k_ani_set_ofdm_weak_signal_detection(ah, false);
799 } else if (strncmp(buf, "ofdm-on", 7) == 0) {
800 ath5k_ani_set_ofdm_weak_signal_detection(ah, true);
801 } else if (strncmp(buf, "cck-off", 7) == 0) {
802 ath5k_ani_set_cck_weak_signal_detection(ah, false);
803 } else if (strncmp(buf, "cck-on", 6) == 0) {
804 ath5k_ani_set_cck_weak_signal_detection(ah, true);
809 static const struct file_operations fops_ani = {
810 .read = read_file_ani,
811 .write = write_file_ani,
812 .open = ath5k_debugfs_open,
813 .owner = THIS_MODULE,
814 .llseek = default_llseek,
818 /* debugfs: queues etc */
820 static ssize_t read_file_queue(struct file *file, char __user *user_buf,
821 size_t count, loff_t *ppos)
823 struct ath5k_hw *ah = file->private_data;
825 unsigned int len = 0;
827 struct ath5k_txq *txq;
828 struct ath5k_buf *bf, *bf0;
831 len += snprintf(buf + len, sizeof(buf) - len,
832 "available txbuffers: %d\n", ah->txbuf_len);
834 for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) {
837 len += snprintf(buf + len, sizeof(buf) - len,
838 "%02d: %ssetup\n", i, txq->setup ? "" : "not ");
844 spin_lock_bh(&txq->lock);
845 list_for_each_entry_safe(bf, bf0, &txq->q, list)
847 spin_unlock_bh(&txq->lock);
849 len += snprintf(buf + len, sizeof(buf) - len,
850 " len: %d bufs: %d\n", txq->txq_len, n);
851 len += snprintf(buf + len, sizeof(buf) - len,
852 " stuck: %d\n", txq->txq_stuck);
855 if (len > sizeof(buf))
858 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
861 static ssize_t write_file_queue(struct file *file,
862 const char __user *userbuf,
863 size_t count, loff_t *ppos)
865 struct ath5k_hw *ah = file->private_data;
868 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
871 if (strncmp(buf, "start", 5) == 0)
872 ieee80211_wake_queues(ah->hw);
873 else if (strncmp(buf, "stop", 4) == 0)
874 ieee80211_stop_queues(ah->hw);
880 static const struct file_operations fops_queue = {
881 .read = read_file_queue,
882 .write = write_file_queue,
883 .open = ath5k_debugfs_open,
884 .owner = THIS_MODULE,
885 .llseek = default_llseek,
890 ath5k_debug_init_device(struct ath5k_hw *ah)
892 struct dentry *phydir;
894 ah->debug.level = ath5k_debug;
896 phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir);
900 debugfs_create_file("debug", S_IWUSR | S_IRUSR, phydir, ah,
903 debugfs_create_file("registers", S_IRUSR, phydir, ah, &fops_registers);
905 debugfs_create_file("beacon", S_IWUSR | S_IRUSR, phydir, ah,
908 debugfs_create_file("reset", S_IWUSR, phydir, ah, &fops_reset);
910 debugfs_create_file("antenna", S_IWUSR | S_IRUSR, phydir, ah,
913 debugfs_create_file("misc", S_IRUSR, phydir, ah, &fops_misc);
915 debugfs_create_file("frameerrors", S_IWUSR | S_IRUSR, phydir, ah,
918 debugfs_create_file("ani", S_IWUSR | S_IRUSR, phydir, ah, &fops_ani);
920 debugfs_create_file("queue", S_IWUSR | S_IRUSR, phydir, ah,
923 debugfs_create_bool("32khz_clock", S_IWUSR | S_IRUSR, phydir,
924 &ah->ah_use_32khz_clock);
927 /* functions used in other places */
930 ath5k_debug_dump_bands(struct ath5k_hw *ah)
934 if (likely(!(ah->debug.level & ATH5K_DEBUG_DUMPBANDS)))
939 for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
940 struct ieee80211_supported_band *band = &ah->sbands[b];
942 switch (band->band) {
943 case IEEE80211_BAND_2GHZ:
944 strcpy(bname, "2 GHz");
946 case IEEE80211_BAND_5GHZ:
947 strcpy(bname, "5 GHz");
950 printk(KERN_DEBUG "Band not supported: %d\n",
954 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
955 band->n_channels, band->n_bitrates);
956 printk(KERN_DEBUG " channels:\n");
957 for (i = 0; i < band->n_channels; i++)
958 printk(KERN_DEBUG " %3d %d %.4x %.4x\n",
959 ieee80211_frequency_to_channel(
960 band->channels[i].center_freq),
961 band->channels[i].center_freq,
962 band->channels[i].hw_value,
963 band->channels[i].flags);
964 printk(KERN_DEBUG " rates:\n");
965 for (i = 0; i < band->n_bitrates; i++)
966 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n",
967 band->bitrates[i].bitrate,
968 band->bitrates[i].hw_value,
969 band->bitrates[i].flags,
970 band->bitrates[i].hw_value_short);
975 ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
976 struct ath5k_rx_status *rs)
978 struct ath5k_desc *ds = bf->desc;
979 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
981 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
982 ds, (unsigned long long)bf->daddr,
983 ds->ds_link, ds->ds_data,
984 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
985 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
986 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
990 ath5k_debug_printrxbuffs(struct ath5k_hw *ah)
992 struct ath5k_desc *ds;
993 struct ath5k_buf *bf;
994 struct ath5k_rx_status rs = {};
997 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
1000 printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
1001 ath5k_hw_get_rxdp(ah), ah->rxlink);
1003 spin_lock_bh(&ah->rxbuflock);
1004 list_for_each_entry(bf, &ah->rxbuf, list) {
1006 status = ah->ah_proc_rx_desc(ah, ds, &rs);
1008 ath5k_debug_printrxbuf(bf, status == 0, &rs);
1010 spin_unlock_bh(&ah->rxbuflock);
1014 ath5k_debug_printtxbuf(struct ath5k_hw *ah, struct ath5k_buf *bf)
1016 struct ath5k_desc *ds = bf->desc;
1017 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
1018 struct ath5k_tx_status ts = {};
1021 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
1024 done = ah->ah_proc_tx_desc(ah, bf->desc, &ts);
1026 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
1027 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
1028 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
1029 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
1030 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
1031 done ? ' ' : (ts.ts_status == 0) ? '*' : '!');