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.
64 static unsigned int ath5k_debug;
65 module_param_named(debug, ath5k_debug, uint, 0);
68 #ifdef CONFIG_ATH5K_DEBUG
70 #include <linux/seq_file.h>
74 static struct dentry *ath5k_global_debugfs;
76 static int ath5k_debugfs_open(struct inode *inode, struct file *file)
78 file->private_data = inode->i_private;
83 /* debugfs: registers */
90 #define REG_STRUCT_INIT(r) { #r, r }
92 /* just a few random registers, might want to add more */
93 static const struct reg regs[] = {
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),
133 REG_STRUCT_INIT(AR5K_CPCOVF),
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),
144 static void *reg_start(struct seq_file *seq, loff_t *pos)
146 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;
149 static void reg_stop(struct seq_file *seq, void *p)
154 static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)
157 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;
160 static int reg_show(struct seq_file *seq, void *p)
162 struct ath5k_softc *sc = seq->private;
164 seq_printf(seq, "%-25s0x%08x\n", r->name,
165 ath5k_hw_reg_read(sc->ah, r->addr));
169 static const struct seq_operations register_seq_ops = {
176 static int open_file_registers(struct inode *inode, struct file *file)
180 res = seq_open(file, ®ister_seq_ops);
182 s = file->private_data;
183 s->private = inode->i_private;
188 static const struct file_operations fops_registers = {
189 .open = open_file_registers,
192 .release = seq_release,
193 .owner = THIS_MODULE,
197 /* debugfs: beacons */
199 static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
200 size_t count, loff_t *ppos)
202 struct ath5k_softc *sc = file->private_data;
203 struct ath5k_hw *ah = sc->ah;
205 unsigned int len = 0;
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);
215 len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\n",
216 "AR5K_LAST_TSTP", ath5k_hw_reg_read(sc->ah, AR5K_LAST_TSTP));
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));
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);
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);
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);
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);
237 tsf = ath5k_hw_get_tsf64(sc->ah);
238 len += snprintf(buf+len, sizeof(buf)-len,
239 "TSF\t\t0x%016llx\tTU: %08x\n",
240 (unsigned long long)tsf, TSF_TO_TU(tsf));
242 if (len > sizeof(buf))
245 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
248 static ssize_t write_file_beacon(struct file *file,
249 const char __user *userbuf,
250 size_t count, loff_t *ppos)
252 struct ath5k_softc *sc = file->private_data;
253 struct ath5k_hw *ah = sc->ah;
256 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
259 if (strncmp(buf, "disable", 7) == 0) {
260 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
261 printk(KERN_INFO "debugfs disable beacons\n");
262 } else if (strncmp(buf, "enable", 6) == 0) {
263 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
264 printk(KERN_INFO "debugfs enable beacons\n");
269 static const struct file_operations fops_beacon = {
270 .read = read_file_beacon,
271 .write = write_file_beacon,
272 .open = ath5k_debugfs_open,
273 .owner = THIS_MODULE,
274 .llseek = default_llseek,
280 static ssize_t write_file_reset(struct file *file,
281 const char __user *userbuf,
282 size_t count, loff_t *ppos)
284 struct ath5k_softc *sc = file->private_data;
285 ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
286 ieee80211_queue_work(sc->hw, &sc->reset_work);
290 static const struct file_operations fops_reset = {
291 .write = write_file_reset,
292 .open = ath5k_debugfs_open,
293 .owner = THIS_MODULE,
294 .llseek = noop_llseek,
298 /* debugfs: debug level */
300 static const struct {
301 enum ath5k_debug_level level;
305 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" },
306 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" },
307 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" },
308 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" },
309 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" },
310 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" },
311 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" },
312 { ATH5K_DEBUG_LED, "led", "LED management" },
313 { ATH5K_DEBUG_DUMP_RX, "dumprx", "print received skb content" },
314 { ATH5K_DEBUG_DUMP_TX, "dumptx", "print transmit skb content" },
315 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" },
316 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" },
317 { ATH5K_DEBUG_ANY, "all", "show all debug levels" },
320 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
321 size_t count, loff_t *ppos)
323 struct ath5k_softc *sc = file->private_data;
325 unsigned int len = 0;
328 len += snprintf(buf+len, sizeof(buf)-len,
329 "DEBUG LEVEL: 0x%08x\n\n", sc->debug.level);
331 for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
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);
337 len += snprintf(buf+len, sizeof(buf)-len,
338 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
339 sc->debug.level == dbg_info[i].level ? '+' : ' ',
340 dbg_info[i].level, dbg_info[i].desc);
342 if (len > sizeof(buf))
345 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
348 static ssize_t write_file_debug(struct file *file,
349 const char __user *userbuf,
350 size_t count, loff_t *ppos)
352 struct ath5k_softc *sc = file->private_data;
356 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
359 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
360 if (strncmp(buf, dbg_info[i].name,
361 strlen(dbg_info[i].name)) == 0) {
362 sc->debug.level ^= dbg_info[i].level; /* toggle bit */
369 static const struct file_operations fops_debug = {
370 .read = read_file_debug,
371 .write = write_file_debug,
372 .open = ath5k_debugfs_open,
373 .owner = THIS_MODULE,
374 .llseek = default_llseek,
378 /* debugfs: antenna */
380 static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
381 size_t count, loff_t *ppos)
383 struct ath5k_softc *sc = file->private_data;
385 unsigned int len = 0;
389 len += snprintf(buf+len, sizeof(buf)-len, "antenna mode\t%d\n",
390 sc->ah->ah_ant_mode);
391 len += snprintf(buf+len, sizeof(buf)-len, "default antenna\t%d\n",
393 len += snprintf(buf+len, sizeof(buf)-len, "tx antenna\t%d\n",
396 len += snprintf(buf+len, sizeof(buf)-len, "\nANTENNA\t\tRX\tTX\n");
397 for (i = 1; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) {
398 len += snprintf(buf+len, sizeof(buf)-len,
399 "[antenna %d]\t%d\t%d\n",
400 i, sc->stats.antenna_rx[i], sc->stats.antenna_tx[i]);
402 len += snprintf(buf+len, sizeof(buf)-len, "[invalid]\t%d\t%d\n",
403 sc->stats.antenna_rx[0], sc->stats.antenna_tx[0]);
405 v = ath5k_hw_reg_read(sc->ah, AR5K_DEFAULT_ANTENNA);
406 len += snprintf(buf+len, sizeof(buf)-len,
407 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
409 v = ath5k_hw_reg_read(sc->ah, AR5K_STA_ID1);
410 len += snprintf(buf+len, sizeof(buf)-len,
411 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
412 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
413 len += snprintf(buf+len, sizeof(buf)-len,
414 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
415 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
416 len += snprintf(buf+len, sizeof(buf)-len,
417 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
418 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
419 len += snprintf(buf+len, sizeof(buf)-len,
420 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
421 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
423 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_AGCCTL);
424 len += snprintf(buf+len, sizeof(buf)-len,
425 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
426 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
428 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_RESTART);
429 len += snprintf(buf+len, sizeof(buf)-len,
430 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
431 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
433 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_FAST_ANT_DIV);
434 len += snprintf(buf+len, sizeof(buf)-len,
435 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
436 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
438 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
439 len += snprintf(buf+len, sizeof(buf)-len,
440 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
441 v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
442 len += snprintf(buf+len, sizeof(buf)-len,
443 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
445 if (len > sizeof(buf))
448 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
451 static ssize_t write_file_antenna(struct file *file,
452 const char __user *userbuf,
453 size_t count, loff_t *ppos)
455 struct ath5k_softc *sc = file->private_data;
459 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
462 if (strncmp(buf, "diversity", 9) == 0) {
463 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_DEFAULT);
464 printk(KERN_INFO "ath5k debug: enable diversity\n");
465 } else if (strncmp(buf, "fixed-a", 7) == 0) {
466 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_A);
467 printk(KERN_INFO "ath5k debugfs: fixed antenna A\n");
468 } else if (strncmp(buf, "fixed-b", 7) == 0) {
469 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_B);
470 printk(KERN_INFO "ath5k debug: fixed antenna B\n");
471 } else if (strncmp(buf, "clear", 5) == 0) {
472 for (i = 0; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) {
473 sc->stats.antenna_rx[i] = 0;
474 sc->stats.antenna_tx[i] = 0;
476 printk(KERN_INFO "ath5k debug: cleared antenna stats\n");
481 static const struct file_operations fops_antenna = {
482 .read = read_file_antenna,
483 .write = write_file_antenna,
484 .open = ath5k_debugfs_open,
485 .owner = THIS_MODULE,
486 .llseek = default_llseek,
490 /* debugfs: frameerrors */
492 static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
493 size_t count, loff_t *ppos)
495 struct ath5k_softc *sc = file->private_data;
496 struct ath5k_statistics *st = &sc->stats;
498 unsigned int len = 0;
501 len += snprintf(buf+len, sizeof(buf)-len,
502 "RX\n---------------------\n");
503 len += snprintf(buf+len, sizeof(buf)-len, "CRC\t%d\t(%d%%)\n",
505 st->rx_all_count > 0 ?
506 st->rxerr_crc*100/st->rx_all_count : 0);
507 len += snprintf(buf+len, sizeof(buf)-len, "PHY\t%d\t(%d%%)\n",
509 st->rx_all_count > 0 ?
510 st->rxerr_phy*100/st->rx_all_count : 0);
511 for (i = 0; i < 32; i++) {
512 if (st->rxerr_phy_code[i])
513 len += snprintf(buf+len, sizeof(buf)-len,
514 " phy_err[%d]\t%d\n",
515 i, st->rxerr_phy_code[i]);
518 len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%d\t(%d%%)\n",
520 st->rx_all_count > 0 ?
521 st->rxerr_fifo*100/st->rx_all_count : 0);
522 len += snprintf(buf+len, sizeof(buf)-len, "decrypt\t%d\t(%d%%)\n",
524 st->rx_all_count > 0 ?
525 st->rxerr_decrypt*100/st->rx_all_count : 0);
526 len += snprintf(buf+len, sizeof(buf)-len, "MIC\t%d\t(%d%%)\n",
528 st->rx_all_count > 0 ?
529 st->rxerr_mic*100/st->rx_all_count : 0);
530 len += snprintf(buf+len, sizeof(buf)-len, "process\t%d\t(%d%%)\n",
532 st->rx_all_count > 0 ?
533 st->rxerr_proc*100/st->rx_all_count : 0);
534 len += snprintf(buf+len, sizeof(buf)-len, "jumbo\t%d\t(%d%%)\n",
536 st->rx_all_count > 0 ?
537 st->rxerr_jumbo*100/st->rx_all_count : 0);
538 len += snprintf(buf+len, sizeof(buf)-len, "[RX all\t%d]\n",
541 len += snprintf(buf+len, sizeof(buf)-len,
542 "\nTX\n---------------------\n");
543 len += snprintf(buf+len, sizeof(buf)-len, "retry\t%d\t(%d%%)\n",
545 st->tx_all_count > 0 ?
546 st->txerr_retry*100/st->tx_all_count : 0);
547 len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%d\t(%d%%)\n",
549 st->tx_all_count > 0 ?
550 st->txerr_fifo*100/st->tx_all_count : 0);
551 len += snprintf(buf+len, sizeof(buf)-len, "filter\t%d\t(%d%%)\n",
553 st->tx_all_count > 0 ?
554 st->txerr_filt*100/st->tx_all_count : 0);
555 len += snprintf(buf+len, sizeof(buf)-len, "[TX all\t%d]\n",
558 if (len > sizeof(buf))
561 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
564 static ssize_t write_file_frameerrors(struct file *file,
565 const char __user *userbuf,
566 size_t count, loff_t *ppos)
568 struct ath5k_softc *sc = file->private_data;
569 struct ath5k_statistics *st = &sc->stats;
572 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
575 if (strncmp(buf, "clear", 5) == 0) {
579 st->rxerr_decrypt = 0;
583 st->rx_all_count = 0;
587 st->tx_all_count = 0;
588 printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n");
593 static const struct file_operations fops_frameerrors = {
594 .read = read_file_frameerrors,
595 .write = write_file_frameerrors,
596 .open = ath5k_debugfs_open,
597 .owner = THIS_MODULE,
598 .llseek = default_llseek,
604 static ssize_t read_file_ani(struct file *file, char __user *user_buf,
605 size_t count, loff_t *ppos)
607 struct ath5k_softc *sc = file->private_data;
608 struct ath5k_statistics *st = &sc->stats;
609 struct ath5k_ani_state *as = &sc->ani_state;
612 unsigned int len = 0;
614 len += snprintf(buf+len, sizeof(buf)-len,
615 "HW has PHY error counters:\t%s\n",
616 sc->ah->ah_capabilities.cap_has_phyerr_counters ?
618 len += snprintf(buf+len, sizeof(buf)-len,
619 "HW max spur immunity level:\t%d\n",
621 len += snprintf(buf+len, sizeof(buf)-len,
622 "\nANI state\n--------------------------------------------\n");
623 len += snprintf(buf+len, sizeof(buf)-len, "operating mode:\t\t\t");
624 switch (as->ani_mode) {
625 case ATH5K_ANI_MODE_OFF:
626 len += snprintf(buf+len, sizeof(buf)-len, "OFF\n");
628 case ATH5K_ANI_MODE_MANUAL_LOW:
629 len += snprintf(buf+len, sizeof(buf)-len,
632 case ATH5K_ANI_MODE_MANUAL_HIGH:
633 len += snprintf(buf+len, sizeof(buf)-len,
636 case ATH5K_ANI_MODE_AUTO:
637 len += snprintf(buf+len, sizeof(buf)-len, "AUTO\n");
640 len += snprintf(buf+len, sizeof(buf)-len,
644 len += snprintf(buf+len, sizeof(buf)-len,
645 "noise immunity level:\t\t%d\n",
646 as->noise_imm_level);
647 len += snprintf(buf+len, sizeof(buf)-len,
648 "spur immunity level:\t\t%d\n",
650 len += snprintf(buf+len, sizeof(buf)-len, "firstep level:\t\t\t%d\n",
652 len += snprintf(buf+len, sizeof(buf)-len,
653 "OFDM weak signal detection:\t%s\n",
654 as->ofdm_weak_sig ? "on" : "off");
655 len += snprintf(buf+len, sizeof(buf)-len,
656 "CCK weak signal detection:\t%s\n",
657 as->cck_weak_sig ? "on" : "off");
659 len += snprintf(buf+len, sizeof(buf)-len,
660 "\nMIB INTERRUPTS:\t\t%u\n",
662 len += snprintf(buf+len, sizeof(buf)-len,
663 "beacon RSSI average:\t%d\n",
664 sc->ah->ah_beacon_rssi_avg.avg);
665 len += snprintf(buf+len, sizeof(buf)-len, "profcnt tx\t\t%u\t(%d%%)\n",
668 as->pfc_tx*100/as->pfc_cycles : 0);
669 len += snprintf(buf+len, sizeof(buf)-len, "profcnt rx\t\t%u\t(%d%%)\n",
672 as->pfc_rx*100/as->pfc_cycles : 0);
673 len += snprintf(buf+len, sizeof(buf)-len, "profcnt busy\t\t%u\t(%d%%)\n",
676 as->pfc_busy*100/as->pfc_cycles : 0);
677 len += snprintf(buf+len, sizeof(buf)-len, "profcnt cycles\t\t%u\n",
679 len += snprintf(buf+len, sizeof(buf)-len,
680 "listen time\t\t%d\tlast: %d\n",
681 as->listen_time, as->last_listen);
682 len += snprintf(buf+len, sizeof(buf)-len,
683 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
684 as->ofdm_errors, as->last_ofdm_errors,
685 as->sum_ofdm_errors);
686 len += snprintf(buf+len, sizeof(buf)-len,
687 "CCK errors\t\t%u\tlast: %u\tsum: %u\n",
688 as->cck_errors, as->last_cck_errors,
690 len += snprintf(buf+len, sizeof(buf)-len,
691 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
692 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1),
693 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
694 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1)));
695 len += snprintf(buf+len, sizeof(buf)-len,
696 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
697 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2),
698 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
699 ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2)));
701 if (len > sizeof(buf))
704 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
707 static ssize_t write_file_ani(struct file *file,
708 const char __user *userbuf,
709 size_t count, loff_t *ppos)
711 struct ath5k_softc *sc = file->private_data;
714 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
717 if (strncmp(buf, "sens-low", 8) == 0) {
718 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_HIGH);
719 } else if (strncmp(buf, "sens-high", 9) == 0) {
720 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_LOW);
721 } else if (strncmp(buf, "ani-off", 7) == 0) {
722 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_OFF);
723 } else if (strncmp(buf, "ani-on", 6) == 0) {
724 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_AUTO);
725 } else if (strncmp(buf, "noise-low", 9) == 0) {
726 ath5k_ani_set_noise_immunity_level(sc->ah, 0);
727 } else if (strncmp(buf, "noise-high", 10) == 0) {
728 ath5k_ani_set_noise_immunity_level(sc->ah,
729 ATH5K_ANI_MAX_NOISE_IMM_LVL);
730 } else if (strncmp(buf, "spur-low", 8) == 0) {
731 ath5k_ani_set_spur_immunity_level(sc->ah, 0);
732 } else if (strncmp(buf, "spur-high", 9) == 0) {
733 ath5k_ani_set_spur_immunity_level(sc->ah,
734 sc->ani_state.max_spur_level);
735 } else if (strncmp(buf, "fir-low", 7) == 0) {
736 ath5k_ani_set_firstep_level(sc->ah, 0);
737 } else if (strncmp(buf, "fir-high", 8) == 0) {
738 ath5k_ani_set_firstep_level(sc->ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
739 } else if (strncmp(buf, "ofdm-off", 8) == 0) {
740 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, false);
741 } else if (strncmp(buf, "ofdm-on", 7) == 0) {
742 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, true);
743 } else if (strncmp(buf, "cck-off", 7) == 0) {
744 ath5k_ani_set_cck_weak_signal_detection(sc->ah, false);
745 } else if (strncmp(buf, "cck-on", 6) == 0) {
746 ath5k_ani_set_cck_weak_signal_detection(sc->ah, true);
751 static const struct file_operations fops_ani = {
752 .read = read_file_ani,
753 .write = write_file_ani,
754 .open = ath5k_debugfs_open,
755 .owner = THIS_MODULE,
756 .llseek = default_llseek,
760 /* debugfs: queues etc */
762 static ssize_t read_file_queue(struct file *file, char __user *user_buf,
763 size_t count, loff_t *ppos)
765 struct ath5k_softc *sc = file->private_data;
767 unsigned int len = 0;
769 struct ath5k_txq *txq;
770 struct ath5k_buf *bf, *bf0;
773 len += snprintf(buf+len, sizeof(buf)-len,
774 "available txbuffers: %d\n", sc->txbuf_len);
776 for (i = 0; i < ARRAY_SIZE(sc->txqs); i++) {
779 len += snprintf(buf+len, sizeof(buf)-len,
780 "%02d: %ssetup\n", i, txq->setup ? "" : "not ");
785 list_for_each_entry_safe(bf, bf0, &txq->q, list)
787 len += snprintf(buf+len, sizeof(buf)-len, " len: %d\n", n);
790 if (len > sizeof(buf))
793 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
796 static ssize_t write_file_queue(struct file *file,
797 const char __user *userbuf,
798 size_t count, loff_t *ppos)
800 struct ath5k_softc *sc = file->private_data;
803 if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
806 if (strncmp(buf, "start", 5) == 0)
807 ieee80211_wake_queues(sc->hw);
808 else if (strncmp(buf, "stop", 4) == 0)
809 ieee80211_stop_queues(sc->hw);
815 static const struct file_operations fops_queue = {
816 .read = read_file_queue,
817 .write = write_file_queue,
818 .open = ath5k_debugfs_open,
819 .owner = THIS_MODULE,
820 .llseek = default_llseek,
827 ath5k_debug_init(void)
829 ath5k_global_debugfs = debugfs_create_dir("ath5k", NULL);
833 ath5k_debug_init_device(struct ath5k_softc *sc)
835 sc->debug.level = ath5k_debug;
837 sc->debug.debugfs_phydir = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
838 ath5k_global_debugfs);
840 sc->debug.debugfs_debug = debugfs_create_file("debug",
842 sc->debug.debugfs_phydir, sc, &fops_debug);
844 sc->debug.debugfs_registers = debugfs_create_file("registers", S_IRUSR,
845 sc->debug.debugfs_phydir, sc, &fops_registers);
847 sc->debug.debugfs_beacon = debugfs_create_file("beacon",
849 sc->debug.debugfs_phydir, sc, &fops_beacon);
851 sc->debug.debugfs_reset = debugfs_create_file("reset", S_IWUSR,
852 sc->debug.debugfs_phydir, sc, &fops_reset);
854 sc->debug.debugfs_antenna = debugfs_create_file("antenna",
856 sc->debug.debugfs_phydir, sc, &fops_antenna);
858 sc->debug.debugfs_frameerrors = debugfs_create_file("frameerrors",
860 sc->debug.debugfs_phydir, sc,
863 sc->debug.debugfs_ani = debugfs_create_file("ani",
865 sc->debug.debugfs_phydir, sc,
868 sc->debug.debugfs_queue = debugfs_create_file("queue",
870 sc->debug.debugfs_phydir, sc,
875 ath5k_debug_finish(void)
877 debugfs_remove(ath5k_global_debugfs);
881 ath5k_debug_finish_device(struct ath5k_softc *sc)
883 debugfs_remove(sc->debug.debugfs_debug);
884 debugfs_remove(sc->debug.debugfs_registers);
885 debugfs_remove(sc->debug.debugfs_beacon);
886 debugfs_remove(sc->debug.debugfs_reset);
887 debugfs_remove(sc->debug.debugfs_antenna);
888 debugfs_remove(sc->debug.debugfs_frameerrors);
889 debugfs_remove(sc->debug.debugfs_ani);
890 debugfs_remove(sc->debug.debugfs_queue);
891 debugfs_remove(sc->debug.debugfs_phydir);
895 /* functions used in other places */
898 ath5k_debug_dump_bands(struct ath5k_softc *sc)
902 if (likely(!(sc->debug.level & ATH5K_DEBUG_DUMPBANDS)))
907 for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
908 struct ieee80211_supported_band *band = &sc->sbands[b];
910 switch (band->band) {
911 case IEEE80211_BAND_2GHZ:
912 strcpy(bname, "2 GHz");
914 case IEEE80211_BAND_5GHZ:
915 strcpy(bname, "5 GHz");
918 printk(KERN_DEBUG "Band not supported: %d\n",
922 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
923 band->n_channels, band->n_bitrates);
924 printk(KERN_DEBUG " channels:\n");
925 for (i = 0; i < band->n_channels; i++)
926 printk(KERN_DEBUG " %3d %d %.4x %.4x\n",
927 ieee80211_frequency_to_channel(
928 band->channels[i].center_freq),
929 band->channels[i].center_freq,
930 band->channels[i].hw_value,
931 band->channels[i].flags);
932 printk(KERN_DEBUG " rates:\n");
933 for (i = 0; i < band->n_bitrates; i++)
934 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n",
935 band->bitrates[i].bitrate,
936 band->bitrates[i].hw_value,
937 band->bitrates[i].flags,
938 band->bitrates[i].hw_value_short);
943 ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
944 struct ath5k_rx_status *rs)
946 struct ath5k_desc *ds = bf->desc;
947 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
949 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
950 ds, (unsigned long long)bf->daddr,
951 ds->ds_link, ds->ds_data,
952 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
953 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
954 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
958 ath5k_debug_printrxbuffs(struct ath5k_softc *sc, struct ath5k_hw *ah)
960 struct ath5k_desc *ds;
961 struct ath5k_buf *bf;
962 struct ath5k_rx_status rs = {};
965 if (likely(!(sc->debug.level & ATH5K_DEBUG_RESET)))
968 printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
969 ath5k_hw_get_rxdp(ah), sc->rxlink);
971 spin_lock_bh(&sc->rxbuflock);
972 list_for_each_entry(bf, &sc->rxbuf, list) {
974 status = ah->ah_proc_rx_desc(ah, ds, &rs);
976 ath5k_debug_printrxbuf(bf, status == 0, &rs);
978 spin_unlock_bh(&sc->rxbuflock);
982 ath5k_debug_dump_skb(struct ath5k_softc *sc,
983 struct sk_buff *skb, const char *prefix, int tx)
987 if (likely(!((tx && (sc->debug.level & ATH5K_DEBUG_DUMP_TX)) ||
988 (!tx && (sc->debug.level & ATH5K_DEBUG_DUMP_RX)))))
991 snprintf(buf, sizeof(buf), "%s %s", wiphy_name(sc->hw->wiphy), prefix);
993 print_hex_dump_bytes(buf, DUMP_PREFIX_NONE, skb->data,
994 min(200U, skb->len));
996 printk(KERN_DEBUG "\n");
1000 ath5k_debug_printtxbuf(struct ath5k_softc *sc, struct ath5k_buf *bf)
1002 struct ath5k_desc *ds = bf->desc;
1003 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
1004 struct ath5k_tx_status ts = {};
1007 if (likely(!(sc->debug.level & ATH5K_DEBUG_RESET)))
1010 done = sc->ah->ah_proc_tx_desc(sc->ah, bf->desc, &ts);
1012 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
1013 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
1014 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
1015 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
1016 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
1017 done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
1020 #endif /* ifdef CONFIG_ATH5K_DEBUG */