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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
63 #include <linux/export.h>
64 #include <linux/moduleparam.h>
65 #include <linux/vmalloc.h>
67 #include <linux/seq_file.h>
68 #include <linux/list.h>
74 static unsigned int ath5k_debug
;
75 module_param_named(debug
, ath5k_debug
, uint
, 0);
78 /* debugfs: registers */
85 #define REG_STRUCT_INIT(r) { #r, r }
87 /* just a few random registers, might want to add more */
88 static const struct reg regs
[] = {
89 REG_STRUCT_INIT(AR5K_CR
),
90 REG_STRUCT_INIT(AR5K_RXDP
),
91 REG_STRUCT_INIT(AR5K_CFG
),
92 REG_STRUCT_INIT(AR5K_IER
),
93 REG_STRUCT_INIT(AR5K_BCR
),
94 REG_STRUCT_INIT(AR5K_RTSD0
),
95 REG_STRUCT_INIT(AR5K_RTSD1
),
96 REG_STRUCT_INIT(AR5K_TXCFG
),
97 REG_STRUCT_INIT(AR5K_RXCFG
),
98 REG_STRUCT_INIT(AR5K_RXJLA
),
99 REG_STRUCT_INIT(AR5K_MIBC
),
100 REG_STRUCT_INIT(AR5K_TOPS
),
101 REG_STRUCT_INIT(AR5K_RXNOFRM
),
102 REG_STRUCT_INIT(AR5K_TXNOFRM
),
103 REG_STRUCT_INIT(AR5K_RPGTO
),
104 REG_STRUCT_INIT(AR5K_RFCNT
),
105 REG_STRUCT_INIT(AR5K_MISC
),
106 REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT
),
107 REG_STRUCT_INIT(AR5K_ISR
),
108 REG_STRUCT_INIT(AR5K_PISR
),
109 REG_STRUCT_INIT(AR5K_SISR0
),
110 REG_STRUCT_INIT(AR5K_SISR1
),
111 REG_STRUCT_INIT(AR5K_SISR2
),
112 REG_STRUCT_INIT(AR5K_SISR3
),
113 REG_STRUCT_INIT(AR5K_SISR4
),
114 REG_STRUCT_INIT(AR5K_IMR
),
115 REG_STRUCT_INIT(AR5K_PIMR
),
116 REG_STRUCT_INIT(AR5K_SIMR0
),
117 REG_STRUCT_INIT(AR5K_SIMR1
),
118 REG_STRUCT_INIT(AR5K_SIMR2
),
119 REG_STRUCT_INIT(AR5K_SIMR3
),
120 REG_STRUCT_INIT(AR5K_SIMR4
),
121 REG_STRUCT_INIT(AR5K_DCM_ADDR
),
122 REG_STRUCT_INIT(AR5K_DCCFG
),
123 REG_STRUCT_INIT(AR5K_CCFG
),
124 REG_STRUCT_INIT(AR5K_CPC0
),
125 REG_STRUCT_INIT(AR5K_CPC1
),
126 REG_STRUCT_INIT(AR5K_CPC2
),
127 REG_STRUCT_INIT(AR5K_CPC3
),
128 REG_STRUCT_INIT(AR5K_CPCOVF
),
129 REG_STRUCT_INIT(AR5K_RESET_CTL
),
130 REG_STRUCT_INIT(AR5K_SLEEP_CTL
),
131 REG_STRUCT_INIT(AR5K_INTPEND
),
132 REG_STRUCT_INIT(AR5K_SFR
),
133 REG_STRUCT_INIT(AR5K_PCICFG
),
134 REG_STRUCT_INIT(AR5K_GPIOCR
),
135 REG_STRUCT_INIT(AR5K_GPIODO
),
136 REG_STRUCT_INIT(AR5K_SREV
),
139 static void *reg_start(struct seq_file
*seq
, loff_t
*pos
)
141 return *pos
< ARRAY_SIZE(regs
) ? (void *)®s
[*pos
] : NULL
;
144 static void reg_stop(struct seq_file
*seq
, void *p
)
149 static void *reg_next(struct seq_file
*seq
, void *p
, loff_t
*pos
)
152 return *pos
< ARRAY_SIZE(regs
) ? (void *)®s
[*pos
] : NULL
;
155 static int reg_show(struct seq_file
*seq
, void *p
)
157 struct ath5k_hw
*ah
= seq
->private;
159 seq_printf(seq
, "%-25s0x%08x\n", r
->name
,
160 ath5k_hw_reg_read(ah
, r
->addr
));
164 static const struct seq_operations register_seq_ops
= {
171 static int open_file_registers(struct inode
*inode
, struct file
*file
)
175 res
= seq_open(file
, ®ister_seq_ops
);
177 s
= file
->private_data
;
178 s
->private = inode
->i_private
;
183 static const struct file_operations fops_registers
= {
184 .open
= open_file_registers
,
187 .release
= seq_release
,
188 .owner
= THIS_MODULE
,
192 /* debugfs: beacons */
194 static ssize_t
read_file_beacon(struct file
*file
, char __user
*user_buf
,
195 size_t count
, loff_t
*ppos
)
197 struct ath5k_hw
*ah
= file
->private_data
;
199 unsigned int len
= 0;
203 v
= ath5k_hw_reg_read(ah
, AR5K_BEACON
);
204 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
205 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
206 "AR5K_BEACON", v
, v
& AR5K_BEACON_PERIOD
,
207 (v
& AR5K_BEACON_TIM
) >> AR5K_BEACON_TIM_S
);
209 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "%-24s0x%08x\n",
210 "AR5K_LAST_TSTP", ath5k_hw_reg_read(ah
, AR5K_LAST_TSTP
));
212 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "%-24s0x%08x\n\n",
213 "AR5K_BEACON_CNT", ath5k_hw_reg_read(ah
, AR5K_BEACON_CNT
));
215 v
= ath5k_hw_reg_read(ah
, AR5K_TIMER0
);
216 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "%-24s0x%08x\tTU: %08x\n",
217 "AR5K_TIMER0 (TBTT)", v
, v
);
219 v
= ath5k_hw_reg_read(ah
, AR5K_TIMER1
);
220 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "%-24s0x%08x\tTU: %08x\n",
221 "AR5K_TIMER1 (DMA)", v
, v
>> 3);
223 v
= ath5k_hw_reg_read(ah
, AR5K_TIMER2
);
224 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "%-24s0x%08x\tTU: %08x\n",
225 "AR5K_TIMER2 (SWBA)", v
, v
>> 3);
227 v
= ath5k_hw_reg_read(ah
, AR5K_TIMER3
);
228 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "%-24s0x%08x\tTU: %08x\n",
229 "AR5K_TIMER3 (ATIM)", v
, v
);
231 tsf
= ath5k_hw_get_tsf64(ah
);
232 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
233 "TSF\t\t0x%016llx\tTU: %08x\n",
234 (unsigned long long)tsf
, TSF_TO_TU(tsf
));
236 if (len
> sizeof(buf
))
239 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
242 static ssize_t
write_file_beacon(struct file
*file
,
243 const char __user
*userbuf
,
244 size_t count
, loff_t
*ppos
)
246 struct ath5k_hw
*ah
= file
->private_data
;
249 count
= min_t(size_t, count
, sizeof(buf
) - 1);
250 if (copy_from_user(buf
, userbuf
, count
))
254 if (strncmp(buf
, "disable", 7) == 0) {
255 AR5K_REG_DISABLE_BITS(ah
, AR5K_BEACON
, AR5K_BEACON_ENABLE
);
256 pr_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 pr_info("debugfs enable beacons\n");
264 static const struct file_operations fops_beacon
= {
265 .read
= read_file_beacon
,
266 .write
= write_file_beacon
,
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
,
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
+= scnprintf(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
+= scnprintf(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
+= scnprintf(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 count
= min_t(size_t, count
, sizeof(buf
) - 1);
352 if (copy_from_user(buf
, userbuf
, count
))
356 for (i
= 0; i
< ARRAY_SIZE(dbg_info
); i
++) {
357 if (strncmp(buf
, dbg_info
[i
].name
,
358 strlen(dbg_info
[i
].name
)) == 0) {
359 ah
->debug
.level
^= dbg_info
[i
].level
; /* toggle bit */
366 static const struct file_operations fops_debug
= {
367 .read
= read_file_debug
,
368 .write
= write_file_debug
,
370 .owner
= THIS_MODULE
,
371 .llseek
= default_llseek
,
375 /* debugfs: antenna */
377 static ssize_t
read_file_antenna(struct file
*file
, char __user
*user_buf
,
378 size_t count
, loff_t
*ppos
)
380 struct ath5k_hw
*ah
= file
->private_data
;
382 unsigned int len
= 0;
386 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "antenna mode\t%d\n",
388 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "default antenna\t%d\n",
390 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "tx antenna\t%d\n",
393 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "\nANTENNA\t\tRX\tTX\n");
394 for (i
= 1; i
< ARRAY_SIZE(ah
->stats
.antenna_rx
); i
++) {
395 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
396 "[antenna %d]\t%d\t%d\n",
397 i
, ah
->stats
.antenna_rx
[i
], ah
->stats
.antenna_tx
[i
]);
399 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "[invalid]\t%d\t%d\n",
400 ah
->stats
.antenna_rx
[0], ah
->stats
.antenna_tx
[0]);
402 v
= ath5k_hw_reg_read(ah
, AR5K_DEFAULT_ANTENNA
);
403 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
404 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v
);
406 v
= ath5k_hw_reg_read(ah
, AR5K_STA_ID1
);
407 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
408 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
409 (v
& AR5K_STA_ID1_DEFAULT_ANTENNA
) != 0);
410 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
411 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
412 (v
& AR5K_STA_ID1_DESC_ANTENNA
) != 0);
413 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
414 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
415 (v
& AR5K_STA_ID1_RTS_DEF_ANTENNA
) != 0);
416 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
417 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
418 (v
& AR5K_STA_ID1_SELFGEN_DEF_ANT
) != 0);
420 v
= ath5k_hw_reg_read(ah
, AR5K_PHY_AGCCTL
);
421 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
422 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
423 (v
& AR5K_PHY_AGCCTL_OFDM_DIV_DIS
) != 0);
425 v
= ath5k_hw_reg_read(ah
, AR5K_PHY_RESTART
);
426 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
427 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
428 (v
& AR5K_PHY_RESTART_DIV_GC
) >> AR5K_PHY_RESTART_DIV_GC_S
);
430 v
= ath5k_hw_reg_read(ah
, AR5K_PHY_FAST_ANT_DIV
);
431 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
432 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
433 (v
& AR5K_PHY_FAST_ANT_DIV_EN
) != 0);
435 v
= ath5k_hw_reg_read(ah
, AR5K_PHY_ANT_SWITCH_TABLE_0
);
436 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
437 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v
);
438 v
= ath5k_hw_reg_read(ah
, AR5K_PHY_ANT_SWITCH_TABLE_1
);
439 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
440 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v
);
442 if (len
> sizeof(buf
))
445 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
448 static ssize_t
write_file_antenna(struct file
*file
,
449 const char __user
*userbuf
,
450 size_t count
, loff_t
*ppos
)
452 struct ath5k_hw
*ah
= file
->private_data
;
456 count
= min_t(size_t, count
, sizeof(buf
) - 1);
457 if (copy_from_user(buf
, userbuf
, count
))
461 if (strncmp(buf
, "diversity", 9) == 0) {
462 ath5k_hw_set_antenna_mode(ah
, AR5K_ANTMODE_DEFAULT
);
463 pr_info("debug: enable diversity\n");
464 } else if (strncmp(buf
, "fixed-a", 7) == 0) {
465 ath5k_hw_set_antenna_mode(ah
, AR5K_ANTMODE_FIXED_A
);
466 pr_info("debug: fixed antenna A\n");
467 } else if (strncmp(buf
, "fixed-b", 7) == 0) {
468 ath5k_hw_set_antenna_mode(ah
, AR5K_ANTMODE_FIXED_B
);
469 pr_info("debug: fixed antenna B\n");
470 } else if (strncmp(buf
, "clear", 5) == 0) {
471 for (i
= 0; i
< ARRAY_SIZE(ah
->stats
.antenna_rx
); i
++) {
472 ah
->stats
.antenna_rx
[i
] = 0;
473 ah
->stats
.antenna_tx
[i
] = 0;
475 pr_info("debug: cleared antenna stats\n");
480 static const struct file_operations fops_antenna
= {
481 .read
= read_file_antenna
,
482 .write
= write_file_antenna
,
484 .owner
= THIS_MODULE
,
485 .llseek
= default_llseek
,
490 static ssize_t
read_file_misc(struct file
*file
, char __user
*user_buf
,
491 size_t count
, loff_t
*ppos
)
493 struct ath5k_hw
*ah
= file
->private_data
;
495 unsigned int len
= 0;
496 u32 filt
= ath5k_hw_get_rx_filter(ah
);
498 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "bssid-mask: %pM\n",
500 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "filter-flags: 0x%x ",
502 if (filt
& AR5K_RX_FILTER_UCAST
)
503 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, " UCAST");
504 if (filt
& AR5K_RX_FILTER_MCAST
)
505 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, " MCAST");
506 if (filt
& AR5K_RX_FILTER_BCAST
)
507 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, " BCAST");
508 if (filt
& AR5K_RX_FILTER_CONTROL
)
509 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, " CONTROL");
510 if (filt
& AR5K_RX_FILTER_BEACON
)
511 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, " BEACON");
512 if (filt
& AR5K_RX_FILTER_PROM
)
513 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, " PROM");
514 if (filt
& AR5K_RX_FILTER_XRPOLL
)
515 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, " XRPOLL");
516 if (filt
& AR5K_RX_FILTER_PROBEREQ
)
517 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, " PROBEREQ");
518 if (filt
& AR5K_RX_FILTER_PHYERR_5212
)
519 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, " PHYERR-5212");
520 if (filt
& AR5K_RX_FILTER_RADARERR_5212
)
521 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, " RADARERR-5212");
522 if (filt
& AR5K_RX_FILTER_PHYERR_5211
)
523 snprintf(buf
+ len
, sizeof(buf
) - len
, " PHYERR-5211");
524 if (filt
& AR5K_RX_FILTER_RADARERR_5211
)
525 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, " RADARERR-5211");
527 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "\nopmode: %s (%d)\n",
528 ath_opmode_to_string(ah
->opmode
), ah
->opmode
);
530 if (len
> sizeof(buf
))
533 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
536 static const struct file_operations fops_misc
= {
537 .read
= read_file_misc
,
539 .owner
= THIS_MODULE
,
543 /* debugfs: frameerrors */
545 static ssize_t
read_file_frameerrors(struct file
*file
, char __user
*user_buf
,
546 size_t count
, loff_t
*ppos
)
548 struct ath5k_hw
*ah
= file
->private_data
;
549 struct ath5k_statistics
*st
= &ah
->stats
;
551 unsigned int len
= 0;
554 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
555 "RX\n---------------------\n");
556 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "CRC\t%u\t(%u%%)\n",
558 st
->rx_all_count
> 0 ?
559 st
->rxerr_crc
* 100 / st
->rx_all_count
: 0);
560 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "PHY\t%u\t(%u%%)\n",
562 st
->rx_all_count
> 0 ?
563 st
->rxerr_phy
* 100 / st
->rx_all_count
: 0);
564 for (i
= 0; i
< 32; i
++) {
565 if (st
->rxerr_phy_code
[i
])
566 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
567 " phy_err[%u]\t%u\n",
568 i
, st
->rxerr_phy_code
[i
]);
571 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "FIFO\t%u\t(%u%%)\n",
573 st
->rx_all_count
> 0 ?
574 st
->rxerr_fifo
* 100 / st
->rx_all_count
: 0);
575 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "decrypt\t%u\t(%u%%)\n",
577 st
->rx_all_count
> 0 ?
578 st
->rxerr_decrypt
* 100 / st
->rx_all_count
: 0);
579 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "MIC\t%u\t(%u%%)\n",
581 st
->rx_all_count
> 0 ?
582 st
->rxerr_mic
* 100 / st
->rx_all_count
: 0);
583 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "process\t%u\t(%u%%)\n",
585 st
->rx_all_count
> 0 ?
586 st
->rxerr_proc
* 100 / st
->rx_all_count
: 0);
587 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "jumbo\t%u\t(%u%%)\n",
589 st
->rx_all_count
> 0 ?
590 st
->rxerr_jumbo
* 100 / st
->rx_all_count
: 0);
591 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "[RX all\t%u]\n",
593 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "RX-all-bytes\t%u\n",
596 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
597 "\nTX\n---------------------\n");
598 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "retry\t%u\t(%u%%)\n",
600 st
->tx_all_count
> 0 ?
601 st
->txerr_retry
* 100 / st
->tx_all_count
: 0);
602 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "FIFO\t%u\t(%u%%)\n",
604 st
->tx_all_count
> 0 ?
605 st
->txerr_fifo
* 100 / st
->tx_all_count
: 0);
606 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "filter\t%u\t(%u%%)\n",
608 st
->tx_all_count
> 0 ?
609 st
->txerr_filt
* 100 / st
->tx_all_count
: 0);
610 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "[TX all\t%u]\n",
612 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "TX-all-bytes\t%u\n",
615 if (len
> sizeof(buf
))
618 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
621 static ssize_t
write_file_frameerrors(struct file
*file
,
622 const char __user
*userbuf
,
623 size_t count
, loff_t
*ppos
)
625 struct ath5k_hw
*ah
= file
->private_data
;
626 struct ath5k_statistics
*st
= &ah
->stats
;
629 count
= min_t(size_t, count
, sizeof(buf
) - 1);
630 if (copy_from_user(buf
, userbuf
, count
))
634 if (strncmp(buf
, "clear", 5) == 0) {
638 st
->rxerr_decrypt
= 0;
642 st
->rx_all_count
= 0;
646 st
->tx_all_count
= 0;
647 pr_info("debug: cleared frameerrors stats\n");
652 static const struct file_operations fops_frameerrors
= {
653 .read
= read_file_frameerrors
,
654 .write
= write_file_frameerrors
,
656 .owner
= THIS_MODULE
,
657 .llseek
= default_llseek
,
663 static ssize_t
read_file_ani(struct file
*file
, char __user
*user_buf
,
664 size_t count
, loff_t
*ppos
)
666 struct ath5k_hw
*ah
= file
->private_data
;
667 struct ath5k_statistics
*st
= &ah
->stats
;
668 struct ath5k_ani_state
*as
= &ah
->ani_state
;
671 unsigned int len
= 0;
673 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
674 "HW has PHY error counters:\t%s\n",
675 ah
->ah_capabilities
.cap_has_phyerr_counters
?
677 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
678 "HW max spur immunity level:\t%d\n",
680 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
681 "\nANI state\n--------------------------------------------\n");
682 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "operating mode:\t\t\t");
683 switch (as
->ani_mode
) {
684 case ATH5K_ANI_MODE_OFF
:
685 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "OFF\n");
687 case ATH5K_ANI_MODE_MANUAL_LOW
:
688 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
691 case ATH5K_ANI_MODE_MANUAL_HIGH
:
692 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
695 case ATH5K_ANI_MODE_AUTO
:
696 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "AUTO\n");
699 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
703 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
704 "noise immunity level:\t\t%d\n",
705 as
->noise_imm_level
);
706 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
707 "spur immunity level:\t\t%d\n",
709 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
710 "firstep level:\t\t\t%d\n",
712 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
713 "OFDM weak signal detection:\t%s\n",
714 as
->ofdm_weak_sig
? "on" : "off");
715 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
716 "CCK weak signal detection:\t%s\n",
717 as
->cck_weak_sig
? "on" : "off");
719 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
720 "\nMIB INTERRUPTS:\t\t%u\n",
722 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
723 "beacon RSSI average:\t%d\n",
724 (int)ewma_beacon_rssi_read(&ah
->ah_beacon_rssi_avg
));
726 #define CC_PRINT(_struct, _field) \
728 _struct.cycles > 0 ? \
729 _struct._field * 100 / _struct.cycles : 0
731 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
732 "profcnt tx\t\t%u\t(%d%%)\n",
733 CC_PRINT(as
->last_cc
, tx_frame
));
734 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
735 "profcnt rx\t\t%u\t(%d%%)\n",
736 CC_PRINT(as
->last_cc
, rx_frame
));
737 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
738 "profcnt busy\t\t%u\t(%d%%)\n",
739 CC_PRINT(as
->last_cc
, rx_busy
));
741 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
, "profcnt cycles\t\t%u\n",
743 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
744 "listen time\t\t%d\tlast: %d\n",
745 as
->listen_time
, as
->last_listen
);
746 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
747 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
748 as
->ofdm_errors
, as
->last_ofdm_errors
,
749 as
->sum_ofdm_errors
);
750 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
751 "CCK errors\t\t%u\tlast: %u\tsum: %u\n",
752 as
->cck_errors
, as
->last_cck_errors
,
754 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
755 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
756 ath5k_hw_reg_read(ah
, AR5K_PHYERR_CNT1
),
757 ATH5K_ANI_OFDM_TRIG_HIGH
- (ATH5K_PHYERR_CNT_MAX
-
758 ath5k_hw_reg_read(ah
, AR5K_PHYERR_CNT1
)));
759 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
760 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
761 ath5k_hw_reg_read(ah
, AR5K_PHYERR_CNT2
),
762 ATH5K_ANI_CCK_TRIG_HIGH
- (ATH5K_PHYERR_CNT_MAX
-
763 ath5k_hw_reg_read(ah
, AR5K_PHYERR_CNT2
)));
765 if (len
> sizeof(buf
))
768 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
771 static ssize_t
write_file_ani(struct file
*file
,
772 const char __user
*userbuf
,
773 size_t count
, loff_t
*ppos
)
775 struct ath5k_hw
*ah
= file
->private_data
;
778 count
= min_t(size_t, count
, sizeof(buf
) - 1);
779 if (copy_from_user(buf
, userbuf
, count
))
783 if (strncmp(buf
, "sens-low", 8) == 0) {
784 ath5k_ani_init(ah
, ATH5K_ANI_MODE_MANUAL_HIGH
);
785 } else if (strncmp(buf
, "sens-high", 9) == 0) {
786 ath5k_ani_init(ah
, ATH5K_ANI_MODE_MANUAL_LOW
);
787 } else if (strncmp(buf
, "ani-off", 7) == 0) {
788 ath5k_ani_init(ah
, ATH5K_ANI_MODE_OFF
);
789 } else if (strncmp(buf
, "ani-on", 6) == 0) {
790 ath5k_ani_init(ah
, ATH5K_ANI_MODE_AUTO
);
791 } else if (strncmp(buf
, "noise-low", 9) == 0) {
792 ath5k_ani_set_noise_immunity_level(ah
, 0);
793 } else if (strncmp(buf
, "noise-high", 10) == 0) {
794 ath5k_ani_set_noise_immunity_level(ah
,
795 ATH5K_ANI_MAX_NOISE_IMM_LVL
);
796 } else if (strncmp(buf
, "spur-low", 8) == 0) {
797 ath5k_ani_set_spur_immunity_level(ah
, 0);
798 } else if (strncmp(buf
, "spur-high", 9) == 0) {
799 ath5k_ani_set_spur_immunity_level(ah
,
800 ah
->ani_state
.max_spur_level
);
801 } else if (strncmp(buf
, "fir-low", 7) == 0) {
802 ath5k_ani_set_firstep_level(ah
, 0);
803 } else if (strncmp(buf
, "fir-high", 8) == 0) {
804 ath5k_ani_set_firstep_level(ah
, ATH5K_ANI_MAX_FIRSTEP_LVL
);
805 } else if (strncmp(buf
, "ofdm-off", 8) == 0) {
806 ath5k_ani_set_ofdm_weak_signal_detection(ah
, false);
807 } else if (strncmp(buf
, "ofdm-on", 7) == 0) {
808 ath5k_ani_set_ofdm_weak_signal_detection(ah
, true);
809 } else if (strncmp(buf
, "cck-off", 7) == 0) {
810 ath5k_ani_set_cck_weak_signal_detection(ah
, false);
811 } else if (strncmp(buf
, "cck-on", 6) == 0) {
812 ath5k_ani_set_cck_weak_signal_detection(ah
, true);
817 static const struct file_operations fops_ani
= {
818 .read
= read_file_ani
,
819 .write
= write_file_ani
,
821 .owner
= THIS_MODULE
,
822 .llseek
= default_llseek
,
826 /* debugfs: queues etc */
828 static ssize_t
read_file_queue(struct file
*file
, char __user
*user_buf
,
829 size_t count
, loff_t
*ppos
)
831 struct ath5k_hw
*ah
= file
->private_data
;
833 unsigned int len
= 0;
835 struct ath5k_txq
*txq
;
836 struct ath5k_buf
*bf
, *bf0
;
839 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
840 "available txbuffers: %d\n", ah
->txbuf_len
);
842 for (i
= 0; i
< ARRAY_SIZE(ah
->txqs
); i
++) {
845 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
846 "%02d: %ssetup\n", i
, txq
->setup
? "" : "not ");
852 spin_lock_bh(&txq
->lock
);
853 list_for_each_entry_safe(bf
, bf0
, &txq
->q
, list
)
855 spin_unlock_bh(&txq
->lock
);
857 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
858 " len: %d bufs: %d\n", txq
->txq_len
, n
);
859 len
+= scnprintf(buf
+ len
, sizeof(buf
) - len
,
860 " stuck: %d\n", txq
->txq_stuck
);
863 if (len
> sizeof(buf
))
866 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
869 static ssize_t
write_file_queue(struct file
*file
,
870 const char __user
*userbuf
,
871 size_t count
, loff_t
*ppos
)
873 struct ath5k_hw
*ah
= file
->private_data
;
876 count
= min_t(size_t, count
, sizeof(buf
) - 1);
877 if (copy_from_user(buf
, userbuf
, count
))
881 if (strncmp(buf
, "start", 5) == 0)
882 ieee80211_wake_queues(ah
->hw
);
883 else if (strncmp(buf
, "stop", 4) == 0)
884 ieee80211_stop_queues(ah
->hw
);
890 static const struct file_operations fops_queue
= {
891 .read
= read_file_queue
,
892 .write
= write_file_queue
,
894 .owner
= THIS_MODULE
,
895 .llseek
= default_llseek
,
898 /* debugfs: eeprom */
900 struct eeprom_private
{
905 static int open_file_eeprom(struct inode
*inode
, struct file
*file
)
907 struct eeprom_private
*ep
;
908 struct ath5k_hw
*ah
= inode
->i_private
;
911 u32 eesize
; /* NB: in 16-bit words */
914 /* Get eeprom size */
916 res
= ath5k_hw_nvram_read(ah
, AR5K_EEPROM_SIZE_UPPER
, &val
);
921 eesize
= AR5K_EEPROM_INFO_MAX
+ AR5K_EEPROM_INFO_BASE
;
923 eesize
= (val
& AR5K_EEPROM_SIZE_UPPER_MASK
) <<
924 AR5K_EEPROM_SIZE_ENDLOC_SHIFT
;
925 ath5k_hw_nvram_read(ah
, AR5K_EEPROM_SIZE_LOWER
, &val
);
926 eesize
= eesize
| val
;
932 /* Create buffer and read in eeprom */
934 buf
= vmalloc(array_size(eesize
, 2));
940 for (i
= 0; i
< eesize
; ++i
) {
941 if (!ath5k_hw_nvram_read(ah
, i
, &val
)) {
948 /* Create private struct and assign to file */
950 ep
= kmalloc(sizeof(*ep
), GFP_KERNEL
);
957 ep
->len
= eesize
* 2;
959 file
->private_data
= (void *)ep
;
970 static ssize_t
read_file_eeprom(struct file
*file
, char __user
*user_buf
,
971 size_t count
, loff_t
*ppos
)
973 struct eeprom_private
*ep
= file
->private_data
;
975 return simple_read_from_buffer(user_buf
, count
, ppos
, ep
->buf
, ep
->len
);
978 static int release_file_eeprom(struct inode
*inode
, struct file
*file
)
980 struct eeprom_private
*ep
= file
->private_data
;
988 static const struct file_operations fops_eeprom
= {
989 .open
= open_file_eeprom
,
990 .read
= read_file_eeprom
,
991 .release
= release_file_eeprom
,
992 .owner
= THIS_MODULE
,
997 ath5k_debug_init_device(struct ath5k_hw
*ah
)
999 struct dentry
*phydir
;
1001 ah
->debug
.level
= ath5k_debug
;
1003 phydir
= debugfs_create_dir("ath5k", ah
->hw
->wiphy
->debugfsdir
);
1007 debugfs_create_file("debug", 0600, phydir
, ah
, &fops_debug
);
1008 debugfs_create_file("registers", 0400, phydir
, ah
, &fops_registers
);
1009 debugfs_create_file("beacon", 0600, phydir
, ah
, &fops_beacon
);
1010 debugfs_create_file("reset", 0200, phydir
, ah
, &fops_reset
);
1011 debugfs_create_file("antenna", 0600, phydir
, ah
, &fops_antenna
);
1012 debugfs_create_file("misc", 0400, phydir
, ah
, &fops_misc
);
1013 debugfs_create_file("eeprom", 0400, phydir
, ah
, &fops_eeprom
);
1014 debugfs_create_file("frameerrors", 0600, phydir
, ah
, &fops_frameerrors
);
1015 debugfs_create_file("ani", 0600, phydir
, ah
, &fops_ani
);
1016 debugfs_create_file("queue", 0600, phydir
, ah
, &fops_queue
);
1017 debugfs_create_bool("32khz_clock", 0600, phydir
,
1018 &ah
->ah_use_32khz_clock
);
1021 /* functions used in other places */
1024 ath5k_debug_dump_bands(struct ath5k_hw
*ah
)
1028 if (likely(!(ah
->debug
.level
& ATH5K_DEBUG_DUMPBANDS
)))
1031 for (b
= 0; b
< NUM_NL80211_BANDS
; b
++) {
1032 struct ieee80211_supported_band
*band
= &ah
->sbands
[b
];
1034 switch (band
->band
) {
1035 case NL80211_BAND_2GHZ
:
1036 strcpy(bname
, "2 GHz");
1038 case NL80211_BAND_5GHZ
:
1039 strcpy(bname
, "5 GHz");
1042 printk(KERN_DEBUG
"Band not supported: %d\n",
1046 printk(KERN_DEBUG
"Band %s: channels %d, rates %d\n", bname
,
1047 band
->n_channels
, band
->n_bitrates
);
1048 printk(KERN_DEBUG
" channels:\n");
1049 for (i
= 0; i
< band
->n_channels
; i
++)
1050 printk(KERN_DEBUG
" %3d %d %.4x %.4x\n",
1051 ieee80211_frequency_to_channel(
1052 band
->channels
[i
].center_freq
),
1053 band
->channels
[i
].center_freq
,
1054 band
->channels
[i
].hw_value
,
1055 band
->channels
[i
].flags
);
1056 printk(KERN_DEBUG
" rates:\n");
1057 for (i
= 0; i
< band
->n_bitrates
; i
++)
1058 printk(KERN_DEBUG
" %4d %.4x %.4x %.4x\n",
1059 band
->bitrates
[i
].bitrate
,
1060 band
->bitrates
[i
].hw_value
,
1061 band
->bitrates
[i
].flags
,
1062 band
->bitrates
[i
].hw_value_short
);
1067 ath5k_debug_printrxbuf(struct ath5k_buf
*bf
, int done
,
1068 struct ath5k_rx_status
*rs
)
1070 struct ath5k_desc
*ds
= bf
->desc
;
1071 struct ath5k_hw_all_rx_desc
*rd
= &ds
->ud
.ds_rx
;
1073 printk(KERN_DEBUG
"R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
1074 ds
, (unsigned long long)bf
->daddr
,
1075 ds
->ds_link
, ds
->ds_data
,
1076 rd
->rx_ctl
.rx_control_0
, rd
->rx_ctl
.rx_control_1
,
1077 rd
->rx_stat
.rx_status_0
, rd
->rx_stat
.rx_status_1
,
1078 !done
? ' ' : (rs
->rs_status
== 0) ? '*' : '!');
1082 ath5k_debug_printrxbuffs(struct ath5k_hw
*ah
)
1084 struct ath5k_desc
*ds
;
1085 struct ath5k_buf
*bf
;
1086 struct ath5k_rx_status rs
= {};
1089 if (likely(!(ah
->debug
.level
& ATH5K_DEBUG_DESC
)))
1092 printk(KERN_DEBUG
"rxdp %x, rxlink %p\n",
1093 ath5k_hw_get_rxdp(ah
), ah
->rxlink
);
1095 spin_lock_bh(&ah
->rxbuflock
);
1096 list_for_each_entry(bf
, &ah
->rxbuf
, list
) {
1098 status
= ah
->ah_proc_rx_desc(ah
, ds
, &rs
);
1100 ath5k_debug_printrxbuf(bf
, status
== 0, &rs
);
1102 spin_unlock_bh(&ah
->rxbuflock
);
1106 ath5k_debug_printtxbuf(struct ath5k_hw
*ah
, struct ath5k_buf
*bf
)
1108 struct ath5k_desc
*ds
= bf
->desc
;
1109 struct ath5k_hw_5212_tx_desc
*td
= &ds
->ud
.ds_tx5212
;
1110 struct ath5k_tx_status ts
= {};
1113 if (likely(!(ah
->debug
.level
& ATH5K_DEBUG_DESC
)))
1116 done
= ah
->ah_proc_tx_desc(ah
, bf
->desc
, &ts
);
1118 printk(KERN_DEBUG
"T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
1119 "%08x %c\n", ds
, (unsigned long long)bf
->daddr
, ds
->ds_link
,
1120 ds
->ds_data
, td
->tx_ctl
.tx_control_0
, td
->tx_ctl
.tx_control_1
,
1121 td
->tx_ctl
.tx_control_2
, td
->tx_ctl
.tx_control_3
,
1122 td
->tx_stat
.tx_status_0
, td
->tx_stat
.tx_status_1
,
1123 done
? ' ' : (ts
.ts_status
== 0) ? '*' : '!');