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 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
245 static ssize_t
write_file_beacon(struct file
*file
,
246 const char __user
*userbuf
,
247 size_t count
, loff_t
*ppos
)
249 struct ath5k_softc
*sc
= file
->private_data
;
250 struct ath5k_hw
*ah
= sc
->ah
;
253 if (copy_from_user(buf
, userbuf
, min(count
, sizeof(buf
))))
256 if (strncmp(buf
, "disable", 7) == 0) {
257 AR5K_REG_DISABLE_BITS(ah
, AR5K_BEACON
, AR5K_BEACON_ENABLE
);
258 printk(KERN_INFO
"debugfs disable beacons\n");
259 } else if (strncmp(buf
, "enable", 6) == 0) {
260 AR5K_REG_ENABLE_BITS(ah
, AR5K_BEACON
, AR5K_BEACON_ENABLE
);
261 printk(KERN_INFO
"debugfs enable beacons\n");
266 static 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
,
276 static ssize_t
write_file_reset(struct file
*file
,
277 const char __user
*userbuf
,
278 size_t count
, loff_t
*ppos
)
280 struct ath5k_softc
*sc
= file
->private_data
;
281 tasklet_schedule(&sc
->restq
);
285 static const struct file_operations fops_reset
= {
286 .write
= write_file_reset
,
287 .open
= ath5k_debugfs_open
,
288 .owner
= THIS_MODULE
,
292 /* debugfs: debug level */
294 static const struct {
295 enum ath5k_debug_level level
;
299 { ATH5K_DEBUG_RESET
, "reset", "reset and initialization" },
300 { ATH5K_DEBUG_INTR
, "intr", "interrupt handling" },
301 { ATH5K_DEBUG_MODE
, "mode", "mode init/setup" },
302 { ATH5K_DEBUG_XMIT
, "xmit", "basic xmit operation" },
303 { ATH5K_DEBUG_BEACON
, "beacon", "beacon handling" },
304 { ATH5K_DEBUG_CALIBRATE
, "calib", "periodic calibration" },
305 { ATH5K_DEBUG_TXPOWER
, "txpower", "transmit power setting" },
306 { ATH5K_DEBUG_LED
, "led", "LED management" },
307 { ATH5K_DEBUG_DUMP_RX
, "dumprx", "print received skb content" },
308 { ATH5K_DEBUG_DUMP_TX
, "dumptx", "print transmit skb content" },
309 { ATH5K_DEBUG_DUMPBANDS
, "dumpbands", "dump bands" },
310 { ATH5K_DEBUG_ANI
, "ani", "adaptive noise immunity" },
311 { ATH5K_DEBUG_ANY
, "all", "show all debug levels" },
314 static ssize_t
read_file_debug(struct file
*file
, char __user
*user_buf
,
315 size_t count
, loff_t
*ppos
)
317 struct ath5k_softc
*sc
= file
->private_data
;
319 unsigned int len
= 0;
322 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
323 "DEBUG LEVEL: 0x%08x\n\n", sc
->debug
.level
);
325 for (i
= 0; i
< ARRAY_SIZE(dbg_info
) - 1; i
++) {
326 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
327 "%10s %c 0x%08x - %s\n", dbg_info
[i
].name
,
328 sc
->debug
.level
& dbg_info
[i
].level
? '+' : ' ',
329 dbg_info
[i
].level
, dbg_info
[i
].desc
);
331 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
332 "%10s %c 0x%08x - %s\n", dbg_info
[i
].name
,
333 sc
->debug
.level
== dbg_info
[i
].level
? '+' : ' ',
334 dbg_info
[i
].level
, dbg_info
[i
].desc
);
336 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
339 static ssize_t
write_file_debug(struct file
*file
,
340 const char __user
*userbuf
,
341 size_t count
, loff_t
*ppos
)
343 struct ath5k_softc
*sc
= file
->private_data
;
347 if (copy_from_user(buf
, userbuf
, min(count
, sizeof(buf
))))
350 for (i
= 0; i
< ARRAY_SIZE(dbg_info
); i
++) {
351 if (strncmp(buf
, dbg_info
[i
].name
,
352 strlen(dbg_info
[i
].name
)) == 0) {
353 sc
->debug
.level
^= dbg_info
[i
].level
; /* toggle bit */
360 static const struct file_operations fops_debug
= {
361 .read
= read_file_debug
,
362 .write
= write_file_debug
,
363 .open
= ath5k_debugfs_open
,
364 .owner
= THIS_MODULE
,
368 /* debugfs: antenna */
370 static ssize_t
read_file_antenna(struct file
*file
, char __user
*user_buf
,
371 size_t count
, loff_t
*ppos
)
373 struct ath5k_softc
*sc
= file
->private_data
;
375 unsigned int len
= 0;
379 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "antenna mode\t%d\n",
380 sc
->ah
->ah_ant_mode
);
381 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "default antenna\t%d\n",
383 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "tx antenna\t%d\n",
386 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "\nANTENNA\t\tRX\tTX\n");
387 for (i
= 1; i
< ARRAY_SIZE(sc
->stats
.antenna_rx
); i
++) {
388 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
389 "[antenna %d]\t%d\t%d\n",
390 i
, sc
->stats
.antenna_rx
[i
], sc
->stats
.antenna_tx
[i
]);
392 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "[invalid]\t%d\t%d\n",
393 sc
->stats
.antenna_rx
[0], sc
->stats
.antenna_tx
[0]);
395 v
= ath5k_hw_reg_read(sc
->ah
, AR5K_DEFAULT_ANTENNA
);
396 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
397 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v
);
399 v
= ath5k_hw_reg_read(sc
->ah
, AR5K_STA_ID1
);
400 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
401 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
402 (v
& AR5K_STA_ID1_DEFAULT_ANTENNA
) != 0);
403 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
404 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
405 (v
& AR5K_STA_ID1_DESC_ANTENNA
) != 0);
406 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
407 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
408 (v
& AR5K_STA_ID1_RTS_DEF_ANTENNA
) != 0);
409 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
410 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
411 (v
& AR5K_STA_ID1_SELFGEN_DEF_ANT
) != 0);
413 v
= ath5k_hw_reg_read(sc
->ah
, AR5K_PHY_AGCCTL
);
414 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
415 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
416 (v
& AR5K_PHY_AGCCTL_OFDM_DIV_DIS
) != 0);
418 v
= ath5k_hw_reg_read(sc
->ah
, AR5K_PHY_RESTART
);
419 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
420 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
421 (v
& AR5K_PHY_RESTART_DIV_GC
) >> AR5K_PHY_RESTART_DIV_GC_S
);
423 v
= ath5k_hw_reg_read(sc
->ah
, AR5K_PHY_FAST_ANT_DIV
);
424 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
425 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
426 (v
& AR5K_PHY_FAST_ANT_DIV_EN
) != 0);
428 v
= ath5k_hw_reg_read(sc
->ah
, AR5K_PHY_ANT_SWITCH_TABLE_0
);
429 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
430 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v
);
431 v
= ath5k_hw_reg_read(sc
->ah
, AR5K_PHY_ANT_SWITCH_TABLE_1
);
432 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
433 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v
);
435 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
438 static ssize_t
write_file_antenna(struct file
*file
,
439 const char __user
*userbuf
,
440 size_t count
, loff_t
*ppos
)
442 struct ath5k_softc
*sc
= file
->private_data
;
446 if (copy_from_user(buf
, userbuf
, min(count
, sizeof(buf
))))
449 if (strncmp(buf
, "diversity", 9) == 0) {
450 ath5k_hw_set_antenna_mode(sc
->ah
, AR5K_ANTMODE_DEFAULT
);
451 printk(KERN_INFO
"ath5k debug: enable diversity\n");
452 } else if (strncmp(buf
, "fixed-a", 7) == 0) {
453 ath5k_hw_set_antenna_mode(sc
->ah
, AR5K_ANTMODE_FIXED_A
);
454 printk(KERN_INFO
"ath5k debugfs: fixed antenna A\n");
455 } else if (strncmp(buf
, "fixed-b", 7) == 0) {
456 ath5k_hw_set_antenna_mode(sc
->ah
, AR5K_ANTMODE_FIXED_B
);
457 printk(KERN_INFO
"ath5k debug: fixed antenna B\n");
458 } else if (strncmp(buf
, "clear", 5) == 0) {
459 for (i
= 0; i
< ARRAY_SIZE(sc
->stats
.antenna_rx
); i
++) {
460 sc
->stats
.antenna_rx
[i
] = 0;
461 sc
->stats
.antenna_tx
[i
] = 0;
463 printk(KERN_INFO
"ath5k debug: cleared antenna stats\n");
468 static const struct file_operations fops_antenna
= {
469 .read
= read_file_antenna
,
470 .write
= write_file_antenna
,
471 .open
= ath5k_debugfs_open
,
472 .owner
= THIS_MODULE
,
476 /* debugfs: frameerrors */
478 static ssize_t
read_file_frameerrors(struct file
*file
, char __user
*user_buf
,
479 size_t count
, loff_t
*ppos
)
481 struct ath5k_softc
*sc
= file
->private_data
;
482 struct ath5k_statistics
*st
= &sc
->stats
;
484 unsigned int len
= 0;
487 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
488 "RX\n---------------------\n");
489 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "CRC\t%d\t(%d%%)\n",
491 st
->rx_all_count
> 0 ?
492 st
->rxerr_crc
*100/st
->rx_all_count
: 0);
493 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "PHY\t%d\t(%d%%)\n",
495 st
->rx_all_count
> 0 ?
496 st
->rxerr_phy
*100/st
->rx_all_count
: 0);
497 for (i
= 0; i
< 32; i
++) {
498 if (st
->rxerr_phy_code
[i
])
499 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
500 " phy_err[%d]\t%d\n",
501 i
, st
->rxerr_phy_code
[i
]);
504 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "FIFO\t%d\t(%d%%)\n",
506 st
->rx_all_count
> 0 ?
507 st
->rxerr_fifo
*100/st
->rx_all_count
: 0);
508 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "decrypt\t%d\t(%d%%)\n",
510 st
->rx_all_count
> 0 ?
511 st
->rxerr_decrypt
*100/st
->rx_all_count
: 0);
512 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "MIC\t%d\t(%d%%)\n",
514 st
->rx_all_count
> 0 ?
515 st
->rxerr_mic
*100/st
->rx_all_count
: 0);
516 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "process\t%d\t(%d%%)\n",
518 st
->rx_all_count
> 0 ?
519 st
->rxerr_proc
*100/st
->rx_all_count
: 0);
520 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "jumbo\t%d\t(%d%%)\n",
522 st
->rx_all_count
> 0 ?
523 st
->rxerr_jumbo
*100/st
->rx_all_count
: 0);
524 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "[RX all\t%d]\n",
527 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
528 "\nTX\n---------------------\n");
529 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "retry\t%d\t(%d%%)\n",
531 st
->tx_all_count
> 0 ?
532 st
->txerr_retry
*100/st
->tx_all_count
: 0);
533 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "FIFO\t%d\t(%d%%)\n",
535 st
->tx_all_count
> 0 ?
536 st
->txerr_fifo
*100/st
->tx_all_count
: 0);
537 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "filter\t%d\t(%d%%)\n",
539 st
->tx_all_count
> 0 ?
540 st
->txerr_filt
*100/st
->tx_all_count
: 0);
541 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "[TX all\t%d]\n",
544 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
547 static ssize_t
write_file_frameerrors(struct file
*file
,
548 const char __user
*userbuf
,
549 size_t count
, loff_t
*ppos
)
551 struct ath5k_softc
*sc
= file
->private_data
;
552 struct ath5k_statistics
*st
= &sc
->stats
;
555 if (copy_from_user(buf
, userbuf
, min(count
, sizeof(buf
))))
558 if (strncmp(buf
, "clear", 5) == 0) {
562 st
->rxerr_decrypt
= 0;
566 st
->rx_all_count
= 0;
570 st
->tx_all_count
= 0;
571 printk(KERN_INFO
"ath5k debug: cleared frameerrors stats\n");
576 static const struct file_operations fops_frameerrors
= {
577 .read
= read_file_frameerrors
,
578 .write
= write_file_frameerrors
,
579 .open
= ath5k_debugfs_open
,
580 .owner
= THIS_MODULE
,
586 static ssize_t
read_file_ani(struct file
*file
, char __user
*user_buf
,
587 size_t count
, loff_t
*ppos
)
589 struct ath5k_softc
*sc
= file
->private_data
;
590 struct ath5k_statistics
*st
= &sc
->stats
;
591 struct ath5k_ani_state
*as
= &sc
->ani_state
;
594 unsigned int len
= 0;
596 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
597 "HW has PHY error counters:\t%s\n",
598 sc
->ah
->ah_capabilities
.cap_has_phyerr_counters
?
600 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
601 "HW max spur immunity level:\t%d\n",
603 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
604 "\nANI state\n--------------------------------------------\n");
605 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "operating mode:\t\t\t");
606 switch (as
->ani_mode
) {
607 case ATH5K_ANI_MODE_OFF
:
608 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "OFF\n");
610 case ATH5K_ANI_MODE_MANUAL_LOW
:
611 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
614 case ATH5K_ANI_MODE_MANUAL_HIGH
:
615 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
618 case ATH5K_ANI_MODE_AUTO
:
619 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "AUTO\n");
622 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
626 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
627 "noise immunity level:\t\t%d\n",
628 as
->noise_imm_level
);
629 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
630 "spur immunity level:\t\t%d\n",
632 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "firstep level:\t\t\t%d\n",
634 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
635 "OFDM weak signal detection:\t%s\n",
636 as
->ofdm_weak_sig
? "on" : "off");
637 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
638 "CCK weak signal detection:\t%s\n",
639 as
->cck_weak_sig
? "on" : "off");
641 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
642 "\nMIB INTERRUPTS:\t\t%u\n",
644 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
645 "beacon RSSI average:\t%d\n",
646 sc
->ah
->ah_beacon_rssi_avg
.avg
);
647 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "profcnt tx\t\t%u\t(%d%%)\n",
650 as
->pfc_tx
*100/as
->pfc_cycles
: 0);
651 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "profcnt rx\t\t%u\t(%d%%)\n",
654 as
->pfc_rx
*100/as
->pfc_cycles
: 0);
655 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "profcnt busy\t\t%u\t(%d%%)\n",
658 as
->pfc_busy
*100/as
->pfc_cycles
: 0);
659 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, "profcnt cycles\t\t%u\n",
661 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
662 "listen time\t\t%d\tlast: %d\n",
663 as
->listen_time
, as
->last_listen
);
664 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
665 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
666 as
->ofdm_errors
, as
->last_ofdm_errors
,
667 as
->sum_ofdm_errors
);
668 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
669 "CCK errors\t\t%u\tlast: %u\tsum: %u\n",
670 as
->cck_errors
, as
->last_cck_errors
,
672 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
673 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
674 ath5k_hw_reg_read(sc
->ah
, AR5K_PHYERR_CNT1
),
675 ATH5K_ANI_OFDM_TRIG_HIGH
- (ATH5K_PHYERR_CNT_MAX
-
676 ath5k_hw_reg_read(sc
->ah
, AR5K_PHYERR_CNT1
)));
677 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
678 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
679 ath5k_hw_reg_read(sc
->ah
, AR5K_PHYERR_CNT2
),
680 ATH5K_ANI_CCK_TRIG_HIGH
- (ATH5K_PHYERR_CNT_MAX
-
681 ath5k_hw_reg_read(sc
->ah
, AR5K_PHYERR_CNT2
)));
683 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
686 static ssize_t
write_file_ani(struct file
*file
,
687 const char __user
*userbuf
,
688 size_t count
, loff_t
*ppos
)
690 struct ath5k_softc
*sc
= file
->private_data
;
693 if (copy_from_user(buf
, userbuf
, min(count
, sizeof(buf
))))
696 if (strncmp(buf
, "sens-low", 8) == 0) {
697 ath5k_ani_init(sc
->ah
, ATH5K_ANI_MODE_MANUAL_HIGH
);
698 } else if (strncmp(buf
, "sens-high", 9) == 0) {
699 ath5k_ani_init(sc
->ah
, ATH5K_ANI_MODE_MANUAL_LOW
);
700 } else if (strncmp(buf
, "ani-off", 7) == 0) {
701 ath5k_ani_init(sc
->ah
, ATH5K_ANI_MODE_OFF
);
702 } else if (strncmp(buf
, "ani-on", 6) == 0) {
703 ath5k_ani_init(sc
->ah
, ATH5K_ANI_MODE_AUTO
);
704 } else if (strncmp(buf
, "noise-low", 9) == 0) {
705 ath5k_ani_set_noise_immunity_level(sc
->ah
, 0);
706 } else if (strncmp(buf
, "noise-high", 10) == 0) {
707 ath5k_ani_set_noise_immunity_level(sc
->ah
,
708 ATH5K_ANI_MAX_NOISE_IMM_LVL
);
709 } else if (strncmp(buf
, "spur-low", 8) == 0) {
710 ath5k_ani_set_spur_immunity_level(sc
->ah
, 0);
711 } else if (strncmp(buf
, "spur-high", 9) == 0) {
712 ath5k_ani_set_spur_immunity_level(sc
->ah
,
713 sc
->ani_state
.max_spur_level
);
714 } else if (strncmp(buf
, "fir-low", 7) == 0) {
715 ath5k_ani_set_firstep_level(sc
->ah
, 0);
716 } else if (strncmp(buf
, "fir-high", 8) == 0) {
717 ath5k_ani_set_firstep_level(sc
->ah
, ATH5K_ANI_MAX_FIRSTEP_LVL
);
718 } else if (strncmp(buf
, "ofdm-off", 8) == 0) {
719 ath5k_ani_set_ofdm_weak_signal_detection(sc
->ah
, false);
720 } else if (strncmp(buf
, "ofdm-on", 7) == 0) {
721 ath5k_ani_set_ofdm_weak_signal_detection(sc
->ah
, true);
722 } else if (strncmp(buf
, "cck-off", 7) == 0) {
723 ath5k_ani_set_cck_weak_signal_detection(sc
->ah
, false);
724 } else if (strncmp(buf
, "cck-on", 6) == 0) {
725 ath5k_ani_set_cck_weak_signal_detection(sc
->ah
, true);
730 static const struct file_operations fops_ani
= {
731 .read
= read_file_ani
,
732 .write
= write_file_ani
,
733 .open
= ath5k_debugfs_open
,
734 .owner
= THIS_MODULE
,
738 /* debugfs: queues etc */
740 static ssize_t
read_file_queue(struct file
*file
, char __user
*user_buf
,
741 size_t count
, loff_t
*ppos
)
743 struct ath5k_softc
*sc
= file
->private_data
;
745 unsigned int len
= 0;
747 struct ath5k_txq
*txq
;
748 struct ath5k_buf
*bf
, *bf0
;
751 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
752 "available txbuffers: %d\n", sc
->txbuf_len
);
754 for (i
= 0; i
< ARRAY_SIZE(sc
->txqs
); i
++) {
757 len
+= snprintf(buf
+len
, sizeof(buf
)-len
,
758 "%02d: %ssetup\n", i
, txq
->setup
? "" : "not ");
763 list_for_each_entry_safe(bf
, bf0
, &txq
->q
, list
)
765 len
+= snprintf(buf
+len
, sizeof(buf
)-len
, " len: %d\n", n
);
768 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
771 static ssize_t
write_file_queue(struct file
*file
,
772 const char __user
*userbuf
,
773 size_t count
, loff_t
*ppos
)
775 struct ath5k_softc
*sc
= file
->private_data
;
778 if (copy_from_user(buf
, userbuf
, min(count
, sizeof(buf
))))
781 if (strncmp(buf
, "start", 5) == 0)
782 ieee80211_wake_queues(sc
->hw
);
783 else if (strncmp(buf
, "stop", 4) == 0)
784 ieee80211_stop_queues(sc
->hw
);
790 static const struct file_operations fops_queue
= {
791 .read
= read_file_queue
,
792 .write
= write_file_queue
,
793 .open
= ath5k_debugfs_open
,
794 .owner
= THIS_MODULE
,
801 ath5k_debug_init(void)
803 ath5k_global_debugfs
= debugfs_create_dir("ath5k", NULL
);
807 ath5k_debug_init_device(struct ath5k_softc
*sc
)
809 sc
->debug
.level
= ath5k_debug
;
811 sc
->debug
.debugfs_phydir
= debugfs_create_dir(wiphy_name(sc
->hw
->wiphy
),
812 ath5k_global_debugfs
);
814 sc
->debug
.debugfs_debug
= debugfs_create_file("debug",
816 sc
->debug
.debugfs_phydir
, sc
, &fops_debug
);
818 sc
->debug
.debugfs_registers
= debugfs_create_file("registers", S_IRUSR
,
819 sc
->debug
.debugfs_phydir
, sc
, &fops_registers
);
821 sc
->debug
.debugfs_beacon
= debugfs_create_file("beacon",
823 sc
->debug
.debugfs_phydir
, sc
, &fops_beacon
);
825 sc
->debug
.debugfs_reset
= debugfs_create_file("reset", S_IWUSR
,
826 sc
->debug
.debugfs_phydir
, sc
, &fops_reset
);
828 sc
->debug
.debugfs_antenna
= debugfs_create_file("antenna",
830 sc
->debug
.debugfs_phydir
, sc
, &fops_antenna
);
832 sc
->debug
.debugfs_frameerrors
= debugfs_create_file("frameerrors",
834 sc
->debug
.debugfs_phydir
, sc
,
837 sc
->debug
.debugfs_ani
= debugfs_create_file("ani",
839 sc
->debug
.debugfs_phydir
, sc
,
842 sc
->debug
.debugfs_queue
= debugfs_create_file("queue",
844 sc
->debug
.debugfs_phydir
, sc
,
849 ath5k_debug_finish(void)
851 debugfs_remove(ath5k_global_debugfs
);
855 ath5k_debug_finish_device(struct ath5k_softc
*sc
)
857 debugfs_remove(sc
->debug
.debugfs_debug
);
858 debugfs_remove(sc
->debug
.debugfs_registers
);
859 debugfs_remove(sc
->debug
.debugfs_beacon
);
860 debugfs_remove(sc
->debug
.debugfs_reset
);
861 debugfs_remove(sc
->debug
.debugfs_antenna
);
862 debugfs_remove(sc
->debug
.debugfs_frameerrors
);
863 debugfs_remove(sc
->debug
.debugfs_ani
);
864 debugfs_remove(sc
->debug
.debugfs_queue
);
865 debugfs_remove(sc
->debug
.debugfs_phydir
);
869 /* functions used in other places */
872 ath5k_debug_dump_bands(struct ath5k_softc
*sc
)
876 if (likely(!(sc
->debug
.level
& ATH5K_DEBUG_DUMPBANDS
)))
881 for (b
= 0; b
< IEEE80211_NUM_BANDS
; b
++) {
882 struct ieee80211_supported_band
*band
= &sc
->sbands
[b
];
884 switch (band
->band
) {
885 case IEEE80211_BAND_2GHZ
:
886 strcpy(bname
, "2 GHz");
888 case IEEE80211_BAND_5GHZ
:
889 strcpy(bname
, "5 GHz");
892 printk(KERN_DEBUG
"Band not supported: %d\n",
896 printk(KERN_DEBUG
"Band %s: channels %d, rates %d\n", bname
,
897 band
->n_channels
, band
->n_bitrates
);
898 printk(KERN_DEBUG
" channels:\n");
899 for (i
= 0; i
< band
->n_channels
; i
++)
900 printk(KERN_DEBUG
" %3d %d %.4x %.4x\n",
901 ieee80211_frequency_to_channel(
902 band
->channels
[i
].center_freq
),
903 band
->channels
[i
].center_freq
,
904 band
->channels
[i
].hw_value
,
905 band
->channels
[i
].flags
);
906 printk(KERN_DEBUG
" rates:\n");
907 for (i
= 0; i
< band
->n_bitrates
; i
++)
908 printk(KERN_DEBUG
" %4d %.4x %.4x %.4x\n",
909 band
->bitrates
[i
].bitrate
,
910 band
->bitrates
[i
].hw_value
,
911 band
->bitrates
[i
].flags
,
912 band
->bitrates
[i
].hw_value_short
);
917 ath5k_debug_printrxbuf(struct ath5k_buf
*bf
, int done
,
918 struct ath5k_rx_status
*rs
)
920 struct ath5k_desc
*ds
= bf
->desc
;
921 struct ath5k_hw_all_rx_desc
*rd
= &ds
->ud
.ds_rx
;
923 printk(KERN_DEBUG
"R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
924 ds
, (unsigned long long)bf
->daddr
,
925 ds
->ds_link
, ds
->ds_data
,
926 rd
->rx_ctl
.rx_control_0
, rd
->rx_ctl
.rx_control_1
,
927 rd
->u
.rx_stat
.rx_status_0
, rd
->u
.rx_stat
.rx_status_0
,
928 !done
? ' ' : (rs
->rs_status
== 0) ? '*' : '!');
932 ath5k_debug_printrxbuffs(struct ath5k_softc
*sc
, struct ath5k_hw
*ah
)
934 struct ath5k_desc
*ds
;
935 struct ath5k_buf
*bf
;
936 struct ath5k_rx_status rs
= {};
939 if (likely(!(sc
->debug
.level
& ATH5K_DEBUG_RESET
)))
942 printk(KERN_DEBUG
"rx queue %x, link %p\n",
943 ath5k_hw_get_rxdp(ah
), sc
->rxlink
);
945 spin_lock_bh(&sc
->rxbuflock
);
946 list_for_each_entry(bf
, &sc
->rxbuf
, list
) {
948 status
= ah
->ah_proc_rx_desc(ah
, ds
, &rs
);
950 ath5k_debug_printrxbuf(bf
, status
== 0, &rs
);
952 spin_unlock_bh(&sc
->rxbuflock
);
956 ath5k_debug_dump_skb(struct ath5k_softc
*sc
,
957 struct sk_buff
*skb
, const char *prefix
, int tx
)
961 if (likely(!((tx
&& (sc
->debug
.level
& ATH5K_DEBUG_DUMP_TX
)) ||
962 (!tx
&& (sc
->debug
.level
& ATH5K_DEBUG_DUMP_RX
)))))
965 snprintf(buf
, sizeof(buf
), "%s %s", wiphy_name(sc
->hw
->wiphy
), prefix
);
967 print_hex_dump_bytes(buf
, DUMP_PREFIX_NONE
, skb
->data
,
968 min(200U, skb
->len
));
970 printk(KERN_DEBUG
"\n");
974 ath5k_debug_printtxbuf(struct ath5k_softc
*sc
, struct ath5k_buf
*bf
)
976 struct ath5k_desc
*ds
= bf
->desc
;
977 struct ath5k_hw_5212_tx_desc
*td
= &ds
->ud
.ds_tx5212
;
978 struct ath5k_tx_status ts
= {};
981 if (likely(!(sc
->debug
.level
& ATH5K_DEBUG_RESET
)))
984 done
= sc
->ah
->ah_proc_tx_desc(sc
->ah
, bf
->desc
, &ts
);
986 printk(KERN_DEBUG
"T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
987 "%08x %c\n", ds
, (unsigned long long)bf
->daddr
, ds
->ds_link
,
988 ds
->ds_data
, td
->tx_ctl
.tx_control_0
, td
->tx_ctl
.tx_control_1
,
989 td
->tx_ctl
.tx_control_2
, td
->tx_ctl
.tx_control_3
,
990 td
->tx_stat
.tx_status_0
, td
->tx_stat
.tx_status_1
,
991 done
? ' ' : (ts
.ts_status
== 0) ? '*' : '!');
994 #endif /* ifdef CONFIG_ATH5K_DEBUG */