2 * Copyright (c) 2008-2009 Atheros Communications Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #include <linux/slab.h>
18 #include <asm/unaligned.h>
22 #define REG_WRITE_D(_ah, _reg, _val) \
23 ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg))
24 #define REG_READ_D(_ah, _reg) \
25 ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
27 static struct dentry
*ath9k_debugfs_root
;
29 static int ath9k_debugfs_open(struct inode
*inode
, struct file
*file
)
31 file
->private_data
= inode
->i_private
;
35 #ifdef CONFIG_ATH_DEBUG
37 static ssize_t
read_file_debug(struct file
*file
, char __user
*user_buf
,
38 size_t count
, loff_t
*ppos
)
40 struct ath_softc
*sc
= file
->private_data
;
41 struct ath_common
*common
= ath9k_hw_common(sc
->sc_ah
);
45 len
= snprintf(buf
, sizeof(buf
), "0x%08x\n", common
->debug_mask
);
46 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
49 static ssize_t
write_file_debug(struct file
*file
, const char __user
*user_buf
,
50 size_t count
, loff_t
*ppos
)
52 struct ath_softc
*sc
= file
->private_data
;
53 struct ath_common
*common
= ath9k_hw_common(sc
->sc_ah
);
58 len
= min(count
, sizeof(buf
) - 1);
59 if (copy_from_user(buf
, user_buf
, len
))
63 if (strict_strtoul(buf
, 0, &mask
))
66 common
->debug_mask
= mask
;
70 static const struct file_operations fops_debug
= {
71 .read
= read_file_debug
,
72 .write
= write_file_debug
,
73 .open
= ath9k_debugfs_open
,
79 #define DMA_BUF_LEN 1024
81 static ssize_t
read_file_dma(struct file
*file
, char __user
*user_buf
,
82 size_t count
, loff_t
*ppos
)
84 struct ath_softc
*sc
= file
->private_data
;
85 struct ath_hw
*ah
= sc
->sc_ah
;
89 u32 val
[ATH9K_NUM_DMA_DEBUG_REGS
];
90 int i
, qcuOffset
= 0, dcuOffset
= 0;
91 u32
*qcuBase
= &val
[0], *dcuBase
= &val
[4];
93 buf
= kmalloc(DMA_BUF_LEN
, GFP_KERNEL
);
99 REG_WRITE_D(ah
, AR_MACMISC
,
100 ((AR_MACMISC_DMA_OBS_LINE_8
<< AR_MACMISC_DMA_OBS_S
) |
101 (AR_MACMISC_MISC_OBS_BUS_1
<<
102 AR_MACMISC_MISC_OBS_BUS_MSB_S
)));
104 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
,
105 "Raw DMA Debug values:\n");
107 for (i
= 0; i
< ATH9K_NUM_DMA_DEBUG_REGS
; i
++) {
109 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
, "\n");
111 val
[i
] = REG_READ_D(ah
, AR_DMADBG_0
+ (i
* sizeof(u32
)));
112 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
, "%d: %08x ",
116 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
, "\n\n");
117 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
,
118 "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
120 for (i
= 0; i
< ATH9K_NUM_QUEUES
; i
++, qcuOffset
+= 4, dcuOffset
+= 5) {
131 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
,
132 "%2d %2x %1x %2x %2x\n",
133 i
, (*qcuBase
& (0x7 << qcuOffset
)) >> qcuOffset
,
134 (*qcuBase
& (0x8 << qcuOffset
)) >> (qcuOffset
+ 3),
135 val
[2] & (0x7 << (i
* 3)) >> (i
* 3),
136 (*dcuBase
& (0x1f << dcuOffset
)) >> dcuOffset
);
139 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
, "\n");
141 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
,
142 "qcu_stitch state: %2x qcu_fetch state: %2x\n",
143 (val
[3] & 0x003c0000) >> 18, (val
[3] & 0x03c00000) >> 22);
144 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
,
145 "qcu_complete state: %2x dcu_complete state: %2x\n",
146 (val
[3] & 0x1c000000) >> 26, (val
[6] & 0x3));
147 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
,
148 "dcu_arb state: %2x dcu_fp state: %2x\n",
149 (val
[5] & 0x06000000) >> 25, (val
[5] & 0x38000000) >> 27);
150 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
,
151 "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
152 (val
[6] & 0x000003fc) >> 2, (val
[6] & 0x00000400) >> 10);
153 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
,
154 "txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
155 (val
[6] & 0x00000800) >> 11, (val
[6] & 0x00001000) >> 12);
156 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
,
157 "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
158 (val
[6] & 0x0001e000) >> 13, (val
[6] & 0x001e0000) >> 17);
160 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
, "pcu observe: 0x%x \n",
161 REG_READ_D(ah
, AR_OBS_BUS_1
));
162 len
+= snprintf(buf
+ len
, DMA_BUF_LEN
- len
,
163 "AR_CR: 0x%x \n", REG_READ_D(ah
, AR_CR
));
165 ath9k_ps_restore(sc
);
167 retval
= simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
172 static const struct file_operations fops_dma
= {
173 .read
= read_file_dma
,
174 .open
= ath9k_debugfs_open
,
179 void ath_debug_stat_interrupt(struct ath_softc
*sc
, enum ath9k_int status
)
182 sc
->debug
.stats
.istats
.total
++;
183 if (status
& ATH9K_INT_RX
)
184 sc
->debug
.stats
.istats
.rxok
++;
185 if (status
& ATH9K_INT_RXEOL
)
186 sc
->debug
.stats
.istats
.rxeol
++;
187 if (status
& ATH9K_INT_RXORN
)
188 sc
->debug
.stats
.istats
.rxorn
++;
189 if (status
& ATH9K_INT_TX
)
190 sc
->debug
.stats
.istats
.txok
++;
191 if (status
& ATH9K_INT_TXURN
)
192 sc
->debug
.stats
.istats
.txurn
++;
193 if (status
& ATH9K_INT_MIB
)
194 sc
->debug
.stats
.istats
.mib
++;
195 if (status
& ATH9K_INT_RXPHY
)
196 sc
->debug
.stats
.istats
.rxphyerr
++;
197 if (status
& ATH9K_INT_RXKCM
)
198 sc
->debug
.stats
.istats
.rx_keycache_miss
++;
199 if (status
& ATH9K_INT_SWBA
)
200 sc
->debug
.stats
.istats
.swba
++;
201 if (status
& ATH9K_INT_BMISS
)
202 sc
->debug
.stats
.istats
.bmiss
++;
203 if (status
& ATH9K_INT_BNR
)
204 sc
->debug
.stats
.istats
.bnr
++;
205 if (status
& ATH9K_INT_CST
)
206 sc
->debug
.stats
.istats
.cst
++;
207 if (status
& ATH9K_INT_GTT
)
208 sc
->debug
.stats
.istats
.gtt
++;
209 if (status
& ATH9K_INT_TIM
)
210 sc
->debug
.stats
.istats
.tim
++;
211 if (status
& ATH9K_INT_CABEND
)
212 sc
->debug
.stats
.istats
.cabend
++;
213 if (status
& ATH9K_INT_DTIMSYNC
)
214 sc
->debug
.stats
.istats
.dtimsync
++;
215 if (status
& ATH9K_INT_DTIM
)
216 sc
->debug
.stats
.istats
.dtim
++;
219 static ssize_t
read_file_interrupt(struct file
*file
, char __user
*user_buf
,
220 size_t count
, loff_t
*ppos
)
222 struct ath_softc
*sc
= file
->private_data
;
224 unsigned int len
= 0;
226 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
227 "%8s: %10u\n", "RX", sc
->debug
.stats
.istats
.rxok
);
228 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
229 "%8s: %10u\n", "RXEOL", sc
->debug
.stats
.istats
.rxeol
);
230 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
231 "%8s: %10u\n", "RXORN", sc
->debug
.stats
.istats
.rxorn
);
232 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
233 "%8s: %10u\n", "TX", sc
->debug
.stats
.istats
.txok
);
234 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
235 "%8s: %10u\n", "TXURN", sc
->debug
.stats
.istats
.txurn
);
236 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
237 "%8s: %10u\n", "MIB", sc
->debug
.stats
.istats
.mib
);
238 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
239 "%8s: %10u\n", "RXPHY", sc
->debug
.stats
.istats
.rxphyerr
);
240 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
241 "%8s: %10u\n", "RXKCM", sc
->debug
.stats
.istats
.rx_keycache_miss
);
242 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
243 "%8s: %10u\n", "SWBA", sc
->debug
.stats
.istats
.swba
);
244 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
245 "%8s: %10u\n", "BMISS", sc
->debug
.stats
.istats
.bmiss
);
246 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
247 "%8s: %10u\n", "BNR", sc
->debug
.stats
.istats
.bnr
);
248 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
249 "%8s: %10u\n", "CST", sc
->debug
.stats
.istats
.cst
);
250 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
251 "%8s: %10u\n", "GTT", sc
->debug
.stats
.istats
.gtt
);
252 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
253 "%8s: %10u\n", "TIM", sc
->debug
.stats
.istats
.tim
);
254 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
255 "%8s: %10u\n", "CABEND", sc
->debug
.stats
.istats
.cabend
);
256 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
257 "%8s: %10u\n", "DTIMSYNC", sc
->debug
.stats
.istats
.dtimsync
);
258 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
259 "%8s: %10u\n", "DTIM", sc
->debug
.stats
.istats
.dtim
);
260 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
261 "%8s: %10u\n", "TOTAL", sc
->debug
.stats
.istats
.total
);
263 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
266 static const struct file_operations fops_interrupt
= {
267 .read
= read_file_interrupt
,
268 .open
= ath9k_debugfs_open
,
272 void ath_debug_stat_rc(struct ath_softc
*sc
, int final_rate
)
274 struct ath_rc_stats
*stats
;
276 stats
= &sc
->debug
.stats
.rcstats
[final_rate
];
280 void ath_debug_stat_retries(struct ath_softc
*sc
, int rix
,
281 int xretries
, int retries
, u8 per
)
283 struct ath_rc_stats
*stats
= &sc
->debug
.stats
.rcstats
[rix
];
285 stats
->xretries
+= xretries
;
286 stats
->retries
+= retries
;
290 static ssize_t
read_file_rcstat(struct file
*file
, char __user
*user_buf
,
291 size_t count
, loff_t
*ppos
)
293 struct ath_softc
*sc
= file
->private_data
;
295 unsigned int len
= 0, max
;
299 if (sc
->cur_rate_table
== NULL
)
302 max
= 80 + sc
->cur_rate_table
->rate_cnt
* 1024;
303 buf
= kmalloc(max
+ 1, GFP_KERNEL
);
308 len
+= sprintf(buf
, "%6s %6s %6s "
309 "%10s %10s %10s %10s\n",
311 "Success", "Retries", "XRetries", "PER");
313 for (i
= 0; i
< sc
->cur_rate_table
->rate_cnt
; i
++) {
314 u32 ratekbps
= sc
->cur_rate_table
->info
[i
].ratekbps
;
315 struct ath_rc_stats
*stats
= &sc
->debug
.stats
.rcstats
[i
];
318 int used_mcs
= 0, used_htmode
= 0;
320 if (WLAN_RC_PHY_HT(sc
->cur_rate_table
->info
[i
].phy
)) {
321 used_mcs
= snprintf(mcs
, 5, "%d",
322 sc
->cur_rate_table
->info
[i
].ratecode
);
324 if (WLAN_RC_PHY_40(sc
->cur_rate_table
->info
[i
].phy
))
325 used_htmode
= snprintf(htmode
, 5, "HT40");
326 else if (WLAN_RC_PHY_20(sc
->cur_rate_table
->info
[i
].phy
))
327 used_htmode
= snprintf(htmode
, 5, "HT20");
329 used_htmode
= snprintf(htmode
, 5, "????");
332 mcs
[used_mcs
] = '\0';
333 htmode
[used_htmode
] = '\0';
335 len
+= snprintf(buf
+ len
, max
- len
,
337 "%10u %10u %10u %10u\n",
341 (ratekbps
% 1000) / 100,
348 retval
= simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
353 static const struct file_operations fops_rcstat
= {
354 .read
= read_file_rcstat
,
355 .open
= ath9k_debugfs_open
,
359 static const char * ath_wiphy_state_str(enum ath_wiphy_state state
)
362 case ATH_WIPHY_INACTIVE
:
364 case ATH_WIPHY_ACTIVE
:
366 case ATH_WIPHY_PAUSING
:
368 case ATH_WIPHY_PAUSED
:
376 static ssize_t
read_file_wiphy(struct file
*file
, char __user
*user_buf
,
377 size_t count
, loff_t
*ppos
)
379 struct ath_softc
*sc
= file
->private_data
;
381 unsigned int len
= 0;
385 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
386 "primary: %s (%s chan=%d ht=%d)\n",
387 wiphy_name(sc
->pri_wiphy
->hw
->wiphy
),
388 ath_wiphy_state_str(sc
->pri_wiphy
->state
),
389 sc
->pri_wiphy
->chan_idx
, sc
->pri_wiphy
->chan_is_ht
);
390 for (i
= 0; i
< sc
->num_sec_wiphy
; i
++) {
391 struct ath_wiphy
*aphy
= sc
->sec_wiphy
[i
];
394 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
395 "secondary: %s (%s chan=%d ht=%d)\n",
396 wiphy_name(aphy
->hw
->wiphy
),
397 ath_wiphy_state_str(aphy
->state
),
398 aphy
->chan_idx
, aphy
->chan_is_ht
);
401 put_unaligned_le32(REG_READ_D(sc
->sc_ah
, AR_STA_ID0
), addr
);
402 put_unaligned_le16(REG_READ_D(sc
->sc_ah
, AR_STA_ID1
) & 0xffff, addr
+ 4);
403 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
404 "addr: %pM\n", addr
);
405 put_unaligned_le32(REG_READ_D(sc
->sc_ah
, AR_BSSMSKL
), addr
);
406 put_unaligned_le16(REG_READ_D(sc
->sc_ah
, AR_BSSMSKU
) & 0xffff, addr
+ 4);
407 len
+= snprintf(buf
+ len
, sizeof(buf
) - len
,
408 "addrmask: %pM\n", addr
);
410 return simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
413 static struct ath_wiphy
* get_wiphy(struct ath_softc
*sc
, const char *name
)
416 if (strcmp(name
, wiphy_name(sc
->pri_wiphy
->hw
->wiphy
)) == 0)
417 return sc
->pri_wiphy
;
418 for (i
= 0; i
< sc
->num_sec_wiphy
; i
++) {
419 struct ath_wiphy
*aphy
= sc
->sec_wiphy
[i
];
420 if (aphy
&& strcmp(name
, wiphy_name(aphy
->hw
->wiphy
)) == 0)
426 static int del_wiphy(struct ath_softc
*sc
, const char *name
)
428 struct ath_wiphy
*aphy
= get_wiphy(sc
, name
);
431 return ath9k_wiphy_del(aphy
);
434 static int pause_wiphy(struct ath_softc
*sc
, const char *name
)
436 struct ath_wiphy
*aphy
= get_wiphy(sc
, name
);
439 return ath9k_wiphy_pause(aphy
);
442 static int unpause_wiphy(struct ath_softc
*sc
, const char *name
)
444 struct ath_wiphy
*aphy
= get_wiphy(sc
, name
);
447 return ath9k_wiphy_unpause(aphy
);
450 static int select_wiphy(struct ath_softc
*sc
, const char *name
)
452 struct ath_wiphy
*aphy
= get_wiphy(sc
, name
);
455 return ath9k_wiphy_select(aphy
);
458 static int schedule_wiphy(struct ath_softc
*sc
, const char *msec
)
460 ath9k_wiphy_set_scheduler(sc
, simple_strtoul(msec
, NULL
, 0));
464 static ssize_t
write_file_wiphy(struct file
*file
, const char __user
*user_buf
,
465 size_t count
, loff_t
*ppos
)
467 struct ath_softc
*sc
= file
->private_data
;
471 len
= min(count
, sizeof(buf
) - 1);
472 if (copy_from_user(buf
, user_buf
, len
))
475 if (len
> 0 && buf
[len
- 1] == '\n')
478 if (strncmp(buf
, "add", 3) == 0) {
479 int res
= ath9k_wiphy_add(sc
);
482 } else if (strncmp(buf
, "del=", 4) == 0) {
483 int res
= del_wiphy(sc
, buf
+ 4);
486 } else if (strncmp(buf
, "pause=", 6) == 0) {
487 int res
= pause_wiphy(sc
, buf
+ 6);
490 } else if (strncmp(buf
, "unpause=", 8) == 0) {
491 int res
= unpause_wiphy(sc
, buf
+ 8);
494 } else if (strncmp(buf
, "select=", 7) == 0) {
495 int res
= select_wiphy(sc
, buf
+ 7);
498 } else if (strncmp(buf
, "schedule=", 9) == 0) {
499 int res
= schedule_wiphy(sc
, buf
+ 9);
508 static const struct file_operations fops_wiphy
= {
509 .read
= read_file_wiphy
,
510 .write
= write_file_wiphy
,
511 .open
= ath9k_debugfs_open
,
515 #define PR(str, elem) \
517 len += snprintf(buf + len, size - len, \
518 "%s%13u%11u%10u%10u\n", str, \
519 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BE]].elem, \
520 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BK]].elem, \
521 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VI]].elem, \
522 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VO]].elem); \
525 static ssize_t
read_file_xmit(struct file
*file
, char __user
*user_buf
,
526 size_t count
, loff_t
*ppos
)
528 struct ath_softc
*sc
= file
->private_data
;
530 unsigned int len
= 0, size
= 2048;
533 buf
= kzalloc(size
, GFP_KERNEL
);
537 len
+= sprintf(buf
, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
539 PR("MPDUs Queued: ", queued
);
540 PR("MPDUs Completed: ", completed
);
541 PR("Aggregates: ", a_aggr
);
542 PR("AMPDUs Queued: ", a_queued
);
543 PR("AMPDUs Completed:", a_completed
);
544 PR("AMPDUs Retried: ", a_retries
);
545 PR("AMPDUs XRetried: ", a_xretries
);
546 PR("FIFO Underrun: ", fifo_underrun
);
547 PR("TXOP Exceeded: ", xtxop
);
548 PR("TXTIMER Expiry: ", timer_exp
);
549 PR("DESC CFG Error: ", desc_cfg_err
);
550 PR("DATA Underrun: ", data_underrun
);
551 PR("DELIM Underrun: ", delim_underrun
);
553 retval
= simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
559 void ath_debug_stat_tx(struct ath_softc
*sc
, struct ath_txq
*txq
,
562 struct ath_desc
*ds
= bf
->bf_desc
;
564 if (bf_isampdu(bf
)) {
565 if (bf_isxretried(bf
))
566 TX_STAT_INC(txq
->axq_qnum
, a_xretries
);
568 TX_STAT_INC(txq
->axq_qnum
, a_completed
);
570 TX_STAT_INC(txq
->axq_qnum
, completed
);
573 if (ds
->ds_txstat
.ts_status
& ATH9K_TXERR_FIFO
)
574 TX_STAT_INC(txq
->axq_qnum
, fifo_underrun
);
575 if (ds
->ds_txstat
.ts_status
& ATH9K_TXERR_XTXOP
)
576 TX_STAT_INC(txq
->axq_qnum
, xtxop
);
577 if (ds
->ds_txstat
.ts_status
& ATH9K_TXERR_TIMER_EXPIRED
)
578 TX_STAT_INC(txq
->axq_qnum
, timer_exp
);
579 if (ds
->ds_txstat
.ts_flags
& ATH9K_TX_DESC_CFG_ERR
)
580 TX_STAT_INC(txq
->axq_qnum
, desc_cfg_err
);
581 if (ds
->ds_txstat
.ts_flags
& ATH9K_TX_DATA_UNDERRUN
)
582 TX_STAT_INC(txq
->axq_qnum
, data_underrun
);
583 if (ds
->ds_txstat
.ts_flags
& ATH9K_TX_DELIM_UNDERRUN
)
584 TX_STAT_INC(txq
->axq_qnum
, delim_underrun
);
587 static const struct file_operations fops_xmit
= {
588 .read
= read_file_xmit
,
589 .open
= ath9k_debugfs_open
,
593 static ssize_t
read_file_recv(struct file
*file
, char __user
*user_buf
,
594 size_t count
, loff_t
*ppos
)
596 #define PHY_ERR(s, p) \
597 len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \
598 sc->debug.stats.rxstats.phy_err_stats[p]);
600 struct ath_softc
*sc
= file
->private_data
;
602 unsigned int len
= 0, size
= 1152;
605 buf
= kzalloc(size
, GFP_KERNEL
);
609 len
+= snprintf(buf
+ len
, size
- len
,
610 "%18s : %10u\n", "CRC ERR",
611 sc
->debug
.stats
.rxstats
.crc_err
);
612 len
+= snprintf(buf
+ len
, size
- len
,
613 "%18s : %10u\n", "DECRYPT CRC ERR",
614 sc
->debug
.stats
.rxstats
.decrypt_crc_err
);
615 len
+= snprintf(buf
+ len
, size
- len
,
616 "%18s : %10u\n", "PHY ERR",
617 sc
->debug
.stats
.rxstats
.phy_err
);
618 len
+= snprintf(buf
+ len
, size
- len
,
619 "%18s : %10u\n", "MIC ERR",
620 sc
->debug
.stats
.rxstats
.mic_err
);
621 len
+= snprintf(buf
+ len
, size
- len
,
622 "%18s : %10u\n", "PRE-DELIM CRC ERR",
623 sc
->debug
.stats
.rxstats
.pre_delim_crc_err
);
624 len
+= snprintf(buf
+ len
, size
- len
,
625 "%18s : %10u\n", "POST-DELIM CRC ERR",
626 sc
->debug
.stats
.rxstats
.post_delim_crc_err
);
627 len
+= snprintf(buf
+ len
, size
- len
,
628 "%18s : %10u\n", "DECRYPT BUSY ERR",
629 sc
->debug
.stats
.rxstats
.decrypt_busy_err
);
631 PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN
);
632 PHY_ERR("TIMING", ATH9K_PHYERR_TIMING
);
633 PHY_ERR("PARITY", ATH9K_PHYERR_PARITY
);
634 PHY_ERR("RATE", ATH9K_PHYERR_RATE
);
635 PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH
);
636 PHY_ERR("RADAR", ATH9K_PHYERR_RADAR
);
637 PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE
);
638 PHY_ERR("TOR", ATH9K_PHYERR_TOR
);
639 PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING
);
640 PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY
);
641 PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL
);
642 PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL
);
643 PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP
);
644 PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE
);
645 PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART
);
646 PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT
);
647 PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING
);
648 PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC
);
649 PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL
);
650 PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE
);
651 PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART
);
652 PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL
);
653 PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP
);
654 PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR
);
655 PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL
);
656 PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL
);
658 retval
= simple_read_from_buffer(user_buf
, count
, ppos
, buf
, len
);
666 void ath_debug_stat_rx(struct ath_softc
*sc
, struct ath_buf
*bf
)
668 #define RX_STAT_INC(c) sc->debug.stats.rxstats.c++
669 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
671 struct ath_desc
*ds
= bf
->bf_desc
;
674 if (ds
->ds_rxstat
.rs_status
& ATH9K_RXERR_CRC
)
675 RX_STAT_INC(crc_err
);
676 if (ds
->ds_rxstat
.rs_status
& ATH9K_RXERR_DECRYPT
)
677 RX_STAT_INC(decrypt_crc_err
);
678 if (ds
->ds_rxstat
.rs_status
& ATH9K_RXERR_MIC
)
679 RX_STAT_INC(mic_err
);
680 if (ds
->ds_rxstat
.rs_status
& ATH9K_RX_DELIM_CRC_PRE
)
681 RX_STAT_INC(pre_delim_crc_err
);
682 if (ds
->ds_rxstat
.rs_status
& ATH9K_RX_DELIM_CRC_POST
)
683 RX_STAT_INC(post_delim_crc_err
);
684 if (ds
->ds_rxstat
.rs_status
& ATH9K_RX_DECRYPT_BUSY
)
685 RX_STAT_INC(decrypt_busy_err
);
687 if (ds
->ds_rxstat
.rs_status
& ATH9K_RXERR_PHY
) {
688 RX_STAT_INC(phy_err
);
689 phyerr
= ds
->ds_rxstat
.rs_phyerr
& 0x24;
690 RX_PHY_ERR_INC(phyerr
);
694 #undef RX_PHY_ERR_INC
697 static const struct file_operations fops_recv
= {
698 .read
= read_file_recv
,
699 .open
= ath9k_debugfs_open
,
703 int ath9k_init_debug(struct ath_hw
*ah
)
705 struct ath_common
*common
= ath9k_hw_common(ah
);
706 struct ath_softc
*sc
= (struct ath_softc
*) common
->priv
;
708 if (!ath9k_debugfs_root
)
711 sc
->debug
.debugfs_phy
= debugfs_create_dir(wiphy_name(sc
->hw
->wiphy
),
713 if (!sc
->debug
.debugfs_phy
)
716 #ifdef CONFIG_ATH_DEBUG
717 sc
->debug
.debugfs_debug
= debugfs_create_file("debug",
718 S_IRUSR
| S_IWUSR
, sc
->debug
.debugfs_phy
, sc
, &fops_debug
);
719 if (!sc
->debug
.debugfs_debug
)
723 sc
->debug
.debugfs_dma
= debugfs_create_file("dma", S_IRUSR
,
724 sc
->debug
.debugfs_phy
, sc
, &fops_dma
);
725 if (!sc
->debug
.debugfs_dma
)
728 sc
->debug
.debugfs_interrupt
= debugfs_create_file("interrupt",
730 sc
->debug
.debugfs_phy
,
731 sc
, &fops_interrupt
);
732 if (!sc
->debug
.debugfs_interrupt
)
735 sc
->debug
.debugfs_rcstat
= debugfs_create_file("rcstat",
737 sc
->debug
.debugfs_phy
,
739 if (!sc
->debug
.debugfs_rcstat
)
742 sc
->debug
.debugfs_wiphy
= debugfs_create_file(
743 "wiphy", S_IRUSR
| S_IWUSR
, sc
->debug
.debugfs_phy
, sc
,
745 if (!sc
->debug
.debugfs_wiphy
)
748 sc
->debug
.debugfs_xmit
= debugfs_create_file("xmit",
750 sc
->debug
.debugfs_phy
,
752 if (!sc
->debug
.debugfs_xmit
)
755 sc
->debug
.debugfs_recv
= debugfs_create_file("recv",
757 sc
->debug
.debugfs_phy
,
759 if (!sc
->debug
.debugfs_recv
)
764 ath9k_exit_debug(ah
);
768 void ath9k_exit_debug(struct ath_hw
*ah
)
770 struct ath_common
*common
= ath9k_hw_common(ah
);
771 struct ath_softc
*sc
= (struct ath_softc
*) common
->priv
;
773 debugfs_remove(sc
->debug
.debugfs_recv
);
774 debugfs_remove(sc
->debug
.debugfs_xmit
);
775 debugfs_remove(sc
->debug
.debugfs_wiphy
);
776 debugfs_remove(sc
->debug
.debugfs_rcstat
);
777 debugfs_remove(sc
->debug
.debugfs_interrupt
);
778 debugfs_remove(sc
->debug
.debugfs_dma
);
779 debugfs_remove(sc
->debug
.debugfs_debug
);
780 debugfs_remove(sc
->debug
.debugfs_phy
);
783 int ath9k_debug_create_root(void)
785 ath9k_debugfs_root
= debugfs_create_dir(KBUILD_MODNAME
, NULL
);
786 if (!ath9k_debugfs_root
)
792 void ath9k_debug_remove_root(void)
794 debugfs_remove(ath9k_debugfs_root
);
795 ath9k_debugfs_root
= NULL
;