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Merge branch 'master' into for-davem
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / wireless / ath / ath9k / debug.c
blob64e30cd45d057a4b289c414029f7170ca2db26f3
1 /*
2 * Copyright (c) 2008-2009 Atheros Communications Inc.
3 *
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.
7 *
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.
15 */
16
17 #include <linux/slab.h>
18 #include <asm/unaligned.h>
19
20 #include "ath9k.h"
21
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))
26
27 static struct dentry *ath9k_debugfs_root;
28
29 static int ath9k_debugfs_open(struct inode *inode, struct file *file)
30 {
31 file->private_data = inode->i_private;
32 return 0;
33 }
34
35 #ifdef CONFIG_ATH_DEBUG
36
37 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
38 size_t count, loff_t *ppos)
39 {
40 struct ath_softc *sc = file->private_data;
41 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
42 char buf[32];
43 unsigned int len;
44
45 len = snprintf(buf, sizeof(buf), "0x%08x\n", common->debug_mask);
46 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
47 }
48
49 static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
50 size_t count, loff_t *ppos)
51 {
52 struct ath_softc *sc = file->private_data;
53 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
54 unsigned long mask;
55 char buf[32];
56 ssize_t len;
57
58 len = min(count, sizeof(buf) - 1);
59 if (copy_from_user(buf, user_buf, len))
60 return -EINVAL;
61
62 buf[len] = '\0';
63 if (strict_strtoul(buf, 0, &mask))
64 return -EINVAL;
65
66 common->debug_mask = mask;
67 return count;
68 }
69
70 static const struct file_operations fops_debug = {
71 .read = read_file_debug,
72 .write = write_file_debug,
73 .open = ath9k_debugfs_open,
74 .owner = THIS_MODULE
75 };
76
77 #endif
78
79 #define DMA_BUF_LEN 1024
80
81 static ssize_t read_file_dma(struct file *file, char __user *user_buf,
82 size_t count, loff_t *ppos)
83 {
84 struct ath_softc *sc = file->private_data;
85 struct ath_hw *ah = sc->sc_ah;
86 char *buf;
87 int retval;
88 unsigned int len = 0;
89 u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
90 int i, qcuOffset = 0, dcuOffset = 0;
91 u32 *qcuBase = &val[0], *dcuBase = &val[4];
92
93 buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
94 if (!buf)
95 return 0;
96
97 ath9k_ps_wakeup(sc);
98
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)));
103
104 len += snprintf(buf + len, DMA_BUF_LEN - len,
105 "Raw DMA Debug values:\n");
106
107 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
108 if (i % 4 == 0)
109 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
110
111 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
112 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
113 i, val[i]);
114 }
115
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");
119
120 for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
121 if (i == 8) {
122 qcuOffset = 0;
123 qcuBase++;
124 }
125
126 if (i == 6) {
127 dcuOffset = 0;
128 dcuBase++;
129 }
130
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);
137 }
138
139 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
140
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);
159
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));
164
165 ath9k_ps_restore(sc);
166
167 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
168 kfree(buf);
169 return retval;
170 }
171
172 static const struct file_operations fops_dma = {
173 .read = read_file_dma,
174 .open = ath9k_debugfs_open,
175 .owner = THIS_MODULE
176 };
177
178
179 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
180 {
181 if (status)
182 sc->debug.stats.istats.total++;
183 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
184 if (status & ATH9K_INT_RXLP)
185 sc->debug.stats.istats.rxlp++;
186 if (status & ATH9K_INT_RXHP)
187 sc->debug.stats.istats.rxhp++;
188 } else {
189 if (status & ATH9K_INT_RX)
190 sc->debug.stats.istats.rxok++;
191 }
192 if (status & ATH9K_INT_RXEOL)
193 sc->debug.stats.istats.rxeol++;
194 if (status & ATH9K_INT_RXORN)
195 sc->debug.stats.istats.rxorn++;
196 if (status & ATH9K_INT_TX)
197 sc->debug.stats.istats.txok++;
198 if (status & ATH9K_INT_TXURN)
199 sc->debug.stats.istats.txurn++;
200 if (status & ATH9K_INT_MIB)
201 sc->debug.stats.istats.mib++;
202 if (status & ATH9K_INT_RXPHY)
203 sc->debug.stats.istats.rxphyerr++;
204 if (status & ATH9K_INT_RXKCM)
205 sc->debug.stats.istats.rx_keycache_miss++;
206 if (status & ATH9K_INT_SWBA)
207 sc->debug.stats.istats.swba++;
208 if (status & ATH9K_INT_BMISS)
209 sc->debug.stats.istats.bmiss++;
210 if (status & ATH9K_INT_BNR)
211 sc->debug.stats.istats.bnr++;
212 if (status & ATH9K_INT_CST)
213 sc->debug.stats.istats.cst++;
214 if (status & ATH9K_INT_GTT)
215 sc->debug.stats.istats.gtt++;
216 if (status & ATH9K_INT_TIM)
217 sc->debug.stats.istats.tim++;
218 if (status & ATH9K_INT_CABEND)
219 sc->debug.stats.istats.cabend++;
220 if (status & ATH9K_INT_DTIMSYNC)
221 sc->debug.stats.istats.dtimsync++;
222 if (status & ATH9K_INT_DTIM)
223 sc->debug.stats.istats.dtim++;
224 }
225
226 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
227 size_t count, loff_t *ppos)
228 {
229 struct ath_softc *sc = file->private_data;
230 char buf[512];
231 unsigned int len = 0;
232
233 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
234 len += snprintf(buf + len, sizeof(buf) - len,
235 "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp);
236 len += snprintf(buf + len, sizeof(buf) - len,
237 "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp);
238 } else {
239 len += snprintf(buf + len, sizeof(buf) - len,
240 "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
241 }
242 len += snprintf(buf + len, sizeof(buf) - len,
243 "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol);
244 len += snprintf(buf + len, sizeof(buf) - len,
245 "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn);
246 len += snprintf(buf + len, sizeof(buf) - len,
247 "%8s: %10u\n", "TX", sc->debug.stats.istats.txok);
248 len += snprintf(buf + len, sizeof(buf) - len,
249 "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn);
250 len += snprintf(buf + len, sizeof(buf) - len,
251 "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib);
252 len += snprintf(buf + len, sizeof(buf) - len,
253 "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr);
254 len += snprintf(buf + len, sizeof(buf) - len,
255 "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss);
256 len += snprintf(buf + len, sizeof(buf) - len,
257 "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba);
258 len += snprintf(buf + len, sizeof(buf) - len,
259 "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss);
260 len += snprintf(buf + len, sizeof(buf) - len,
261 "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr);
262 len += snprintf(buf + len, sizeof(buf) - len,
263 "%8s: %10u\n", "CST", sc->debug.stats.istats.cst);
264 len += snprintf(buf + len, sizeof(buf) - len,
265 "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt);
266 len += snprintf(buf + len, sizeof(buf) - len,
267 "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim);
268 len += snprintf(buf + len, sizeof(buf) - len,
269 "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend);
270 len += snprintf(buf + len, sizeof(buf) - len,
271 "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync);
272 len += snprintf(buf + len, sizeof(buf) - len,
273 "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
274 len += snprintf(buf + len, sizeof(buf) - len,
275 "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
276
277 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
278 }
279
280 static const struct file_operations fops_interrupt = {
281 .read = read_file_interrupt,
282 .open = ath9k_debugfs_open,
283 .owner = THIS_MODULE
284 };
285
286 void ath_debug_stat_rc(struct ath_softc *sc, int final_rate)
287 {
288 struct ath_rc_stats *stats;
289
290 stats = &sc->debug.stats.rcstats[final_rate];
291 stats->success++;
292 }
293
294 void ath_debug_stat_retries(struct ath_softc *sc, int rix,
295 int xretries, int retries, u8 per)
296 {
297 struct ath_rc_stats *stats = &sc->debug.stats.rcstats[rix];
298
299 stats->xretries += xretries;
300 stats->retries += retries;
301 stats->per = per;
302 }
303
304 static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
305 size_t count, loff_t *ppos)
306 {
307 struct ath_softc *sc = file->private_data;
308 char *buf;
309 unsigned int len = 0, max;
310 int i = 0;
311 ssize_t retval;
312
313 if (sc->cur_rate_table == NULL)
314 return 0;
315
316 max = 80 + sc->cur_rate_table->rate_cnt * 1024;
317 buf = kmalloc(max + 1, GFP_KERNEL);
318 if (buf == NULL)
319 return 0;
320 buf[max] = 0;
321
322 len += sprintf(buf, "%6s %6s %6s "
323 "%10s %10s %10s %10s\n",
324 "HT", "MCS", "Rate",
325 "Success", "Retries", "XRetries", "PER");
326
327 for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) {
328 u32 ratekbps = sc->cur_rate_table->info[i].ratekbps;
329 struct ath_rc_stats *stats = &sc->debug.stats.rcstats[i];
330 char mcs[5];
331 char htmode[5];
332 int used_mcs = 0, used_htmode = 0;
333
334 if (WLAN_RC_PHY_HT(sc->cur_rate_table->info[i].phy)) {
335 used_mcs = snprintf(mcs, 5, "%d",
336 sc->cur_rate_table->info[i].ratecode);
337
338 if (WLAN_RC_PHY_40(sc->cur_rate_table->info[i].phy))
339 used_htmode = snprintf(htmode, 5, "HT40");
340 else if (WLAN_RC_PHY_20(sc->cur_rate_table->info[i].phy))
341 used_htmode = snprintf(htmode, 5, "HT20");
342 else
343 used_htmode = snprintf(htmode, 5, "????");
344 }
345
346 mcs[used_mcs] = '\0';
347 htmode[used_htmode] = '\0';
348
349 len += snprintf(buf + len, max - len,
350 "%6s %6s %3u.%d: "
351 "%10u %10u %10u %10u\n",
352 htmode,
353 mcs,
354 ratekbps / 1000,
355 (ratekbps % 1000) / 100,
356 stats->success,
357 stats->retries,
358 stats->xretries,
359 stats->per);
360 }
361
362 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
363 kfree(buf);
364 return retval;
365 }
366
367 static const struct file_operations fops_rcstat = {
368 .read = read_file_rcstat,
369 .open = ath9k_debugfs_open,
370 .owner = THIS_MODULE
371 };
372
373 static const char * ath_wiphy_state_str(enum ath_wiphy_state state)
374 {
375 switch (state) {
376 case ATH_WIPHY_INACTIVE:
377 return "INACTIVE";
378 case ATH_WIPHY_ACTIVE:
379 return "ACTIVE";
380 case ATH_WIPHY_PAUSING:
381 return "PAUSING";
382 case ATH_WIPHY_PAUSED:
383 return "PAUSED";
384 case ATH_WIPHY_SCAN:
385 return "SCAN";
386 }
387 return "?";
388 }
389
390 static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
391 size_t count, loff_t *ppos)
392 {
393 struct ath_softc *sc = file->private_data;
394 char buf[512];
395 unsigned int len = 0;
396 int i;
397 u8 addr[ETH_ALEN];
398
399 len += snprintf(buf + len, sizeof(buf) - len,
400 "primary: %s (%s chan=%d ht=%d)\n",
401 wiphy_name(sc->pri_wiphy->hw->wiphy),
402 ath_wiphy_state_str(sc->pri_wiphy->state),
403 sc->pri_wiphy->chan_idx, sc->pri_wiphy->chan_is_ht);
404 for (i = 0; i < sc->num_sec_wiphy; i++) {
405 struct ath_wiphy *aphy = sc->sec_wiphy[i];
406 if (aphy == NULL)
407 continue;
408 len += snprintf(buf + len, sizeof(buf) - len,
409 "secondary: %s (%s chan=%d ht=%d)\n",
410 wiphy_name(aphy->hw->wiphy),
411 ath_wiphy_state_str(aphy->state),
412 aphy->chan_idx, aphy->chan_is_ht);
413 }
414
415 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
416 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
417 len += snprintf(buf + len, sizeof(buf) - len,
418 "addr: %pM\n", addr);
419 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr);
420 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
421 len += snprintf(buf + len, sizeof(buf) - len,
422 "addrmask: %pM\n", addr);
423
424 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
425 }
426
427 static struct ath_wiphy * get_wiphy(struct ath_softc *sc, const char *name)
428 {
429 int i;
430 if (strcmp(name, wiphy_name(sc->pri_wiphy->hw->wiphy)) == 0)
431 return sc->pri_wiphy;
432 for (i = 0; i < sc->num_sec_wiphy; i++) {
433 struct ath_wiphy *aphy = sc->sec_wiphy[i];
434 if (aphy && strcmp(name, wiphy_name(aphy->hw->wiphy)) == 0)
435 return aphy;
436 }
437 return NULL;
438 }
439
440 static int del_wiphy(struct ath_softc *sc, const char *name)
441 {
442 struct ath_wiphy *aphy = get_wiphy(sc, name);
443 if (!aphy)
444 return -ENOENT;
445 return ath9k_wiphy_del(aphy);
446 }
447
448 static int pause_wiphy(struct ath_softc *sc, const char *name)
449 {
450 struct ath_wiphy *aphy = get_wiphy(sc, name);
451 if (!aphy)
452 return -ENOENT;
453 return ath9k_wiphy_pause(aphy);
454 }
455
456 static int unpause_wiphy(struct ath_softc *sc, const char *name)
457 {
458 struct ath_wiphy *aphy = get_wiphy(sc, name);
459 if (!aphy)
460 return -ENOENT;
461 return ath9k_wiphy_unpause(aphy);
462 }
463
464 static int select_wiphy(struct ath_softc *sc, const char *name)
465 {
466 struct ath_wiphy *aphy = get_wiphy(sc, name);
467 if (!aphy)
468 return -ENOENT;
469 return ath9k_wiphy_select(aphy);
470 }
471
472 static int schedule_wiphy(struct ath_softc *sc, const char *msec)
473 {
474 ath9k_wiphy_set_scheduler(sc, simple_strtoul(msec, NULL, 0));
475 return 0;
476 }
477
478 static ssize_t write_file_wiphy(struct file *file, const char __user *user_buf,
479 size_t count, loff_t *ppos)
480 {
481 struct ath_softc *sc = file->private_data;
482 char buf[50];
483 size_t len;
484
485 len = min(count, sizeof(buf) - 1);
486 if (copy_from_user(buf, user_buf, len))
487 return -EFAULT;
488 buf[len] = '\0';
489 if (len > 0 && buf[len - 1] == '\n')
490 buf[len - 1] = '\0';
491
492 if (strncmp(buf, "add", 3) == 0) {
493 int res = ath9k_wiphy_add(sc);
494 if (res < 0)
495 return res;
496 } else if (strncmp(buf, "del=", 4) == 0) {
497 int res = del_wiphy(sc, buf + 4);
498 if (res < 0)
499 return res;
500 } else if (strncmp(buf, "pause=", 6) == 0) {
501 int res = pause_wiphy(sc, buf + 6);
502 if (res < 0)
503 return res;
504 } else if (strncmp(buf, "unpause=", 8) == 0) {
505 int res = unpause_wiphy(sc, buf + 8);
506 if (res < 0)
507 return res;
508 } else if (strncmp(buf, "select=", 7) == 0) {
509 int res = select_wiphy(sc, buf + 7);
510 if (res < 0)
511 return res;
512 } else if (strncmp(buf, "schedule=", 9) == 0) {
513 int res = schedule_wiphy(sc, buf + 9);
514 if (res < 0)
515 return res;
516 } else
517 return -EOPNOTSUPP;
518
519 return count;
520 }
521
522 static const struct file_operations fops_wiphy = {
523 .read = read_file_wiphy,
524 .write = write_file_wiphy,
525 .open = ath9k_debugfs_open,
526 .owner = THIS_MODULE
527 };
528
529 #define PR(str, elem) \
530 do { \
531 len += snprintf(buf + len, size - len, \
532 "%s%13u%11u%10u%10u\n", str, \
533 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BE]].elem, \
534 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BK]].elem, \
535 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VI]].elem, \
536 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VO]].elem); \
537 } while(0)
538
539 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
540 size_t count, loff_t *ppos)
541 {
542 struct ath_softc *sc = file->private_data;
543 char *buf;
544 unsigned int len = 0, size = 2048;
545 ssize_t retval = 0;
546
547 buf = kzalloc(size, GFP_KERNEL);
548 if (buf == NULL)
549 return 0;
550
551 len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
552
553 PR("MPDUs Queued: ", queued);
554 PR("MPDUs Completed: ", completed);
555 PR("Aggregates: ", a_aggr);
556 PR("AMPDUs Queued: ", a_queued);
557 PR("AMPDUs Completed:", a_completed);
558 PR("AMPDUs Retried: ", a_retries);
559 PR("AMPDUs XRetried: ", a_xretries);
560 PR("FIFO Underrun: ", fifo_underrun);
561 PR("TXOP Exceeded: ", xtxop);
562 PR("TXTIMER Expiry: ", timer_exp);
563 PR("DESC CFG Error: ", desc_cfg_err);
564 PR("DATA Underrun: ", data_underrun);
565 PR("DELIM Underrun: ", delim_underrun);
566
567 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
568 kfree(buf);
569
570 return retval;
571 }
572
573 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
574 struct ath_buf *bf, struct ath_tx_status *ts)
575 {
576 if (bf_isampdu(bf)) {
577 if (bf_isxretried(bf))
578 TX_STAT_INC(txq->axq_qnum, a_xretries);
579 else
580 TX_STAT_INC(txq->axq_qnum, a_completed);
581 } else {
582 TX_STAT_INC(txq->axq_qnum, completed);
583 }
584
585 if (ts->ts_status & ATH9K_TXERR_FIFO)
586 TX_STAT_INC(txq->axq_qnum, fifo_underrun);
587 if (ts->ts_status & ATH9K_TXERR_XTXOP)
588 TX_STAT_INC(txq->axq_qnum, xtxop);
589 if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
590 TX_STAT_INC(txq->axq_qnum, timer_exp);
591 if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
592 TX_STAT_INC(txq->axq_qnum, desc_cfg_err);
593 if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
594 TX_STAT_INC(txq->axq_qnum, data_underrun);
595 if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
596 TX_STAT_INC(txq->axq_qnum, delim_underrun);
597 }
598
599 static const struct file_operations fops_xmit = {
600 .read = read_file_xmit,
601 .open = ath9k_debugfs_open,
602 .owner = THIS_MODULE
603 };
604
605 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
606 size_t count, loff_t *ppos)
607 {
608 #define PHY_ERR(s, p) \
609 len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \
610 sc->debug.stats.rxstats.phy_err_stats[p]);
611
612 struct ath_softc *sc = file->private_data;
613 char *buf;
614 unsigned int len = 0, size = 1152;
615 ssize_t retval = 0;
616
617 buf = kzalloc(size, GFP_KERNEL);
618 if (buf == NULL)
619 return 0;
620
621 len += snprintf(buf + len, size - len,
622 "%18s : %10u\n", "CRC ERR",
623 sc->debug.stats.rxstats.crc_err);
624 len += snprintf(buf + len, size - len,
625 "%18s : %10u\n", "DECRYPT CRC ERR",
626 sc->debug.stats.rxstats.decrypt_crc_err);
627 len += snprintf(buf + len, size - len,
628 "%18s : %10u\n", "PHY ERR",
629 sc->debug.stats.rxstats.phy_err);
630 len += snprintf(buf + len, size - len,
631 "%18s : %10u\n", "MIC ERR",
632 sc->debug.stats.rxstats.mic_err);
633 len += snprintf(buf + len, size - len,
634 "%18s : %10u\n", "PRE-DELIM CRC ERR",
635 sc->debug.stats.rxstats.pre_delim_crc_err);
636 len += snprintf(buf + len, size - len,
637 "%18s : %10u\n", "POST-DELIM CRC ERR",
638 sc->debug.stats.rxstats.post_delim_crc_err);
639 len += snprintf(buf + len, size - len,
640 "%18s : %10u\n", "DECRYPT BUSY ERR",
641 sc->debug.stats.rxstats.decrypt_busy_err);
642
643 PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);
644 PHY_ERR("TIMING", ATH9K_PHYERR_TIMING);
645 PHY_ERR("PARITY", ATH9K_PHYERR_PARITY);
646 PHY_ERR("RATE", ATH9K_PHYERR_RATE);
647 PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH);
648 PHY_ERR("RADAR", ATH9K_PHYERR_RADAR);
649 PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE);
650 PHY_ERR("TOR", ATH9K_PHYERR_TOR);
651 PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING);
652 PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
653 PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
654 PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
655 PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP);
656 PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE);
657 PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART);
658 PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT);
659 PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING);
660 PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC);
661 PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
662 PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE);
663 PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART);
664 PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
665 PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP);
666 PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR);
667 PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
668 PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL);
669
670 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
671 kfree(buf);
672
673 return retval;
674
675 #undef PHY_ERR
676 }
677
678 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
679 {
680 #define RX_STAT_INC(c) sc->debug.stats.rxstats.c++
681 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
682
683 u32 phyerr;
684
685 if (rs->rs_status & ATH9K_RXERR_CRC)
686 RX_STAT_INC(crc_err);
687 if (rs->rs_status & ATH9K_RXERR_DECRYPT)
688 RX_STAT_INC(decrypt_crc_err);
689 if (rs->rs_status & ATH9K_RXERR_MIC)
690 RX_STAT_INC(mic_err);
691 if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
692 RX_STAT_INC(pre_delim_crc_err);
693 if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
694 RX_STAT_INC(post_delim_crc_err);
695 if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
696 RX_STAT_INC(decrypt_busy_err);
697
698 if (rs->rs_status & ATH9K_RXERR_PHY) {
699 RX_STAT_INC(phy_err);
700 phyerr = rs->rs_phyerr & 0x24;
701 RX_PHY_ERR_INC(phyerr);
702 }
703
704 #undef RX_STAT_INC
705 #undef RX_PHY_ERR_INC
706 }
707
708 static const struct file_operations fops_recv = {
709 .read = read_file_recv,
710 .open = ath9k_debugfs_open,
711 .owner = THIS_MODULE
712 };
713
714 int ath9k_init_debug(struct ath_hw *ah)
715 {
716 struct ath_common *common = ath9k_hw_common(ah);
717 struct ath_softc *sc = (struct ath_softc *) common->priv;
718
719 if (!ath9k_debugfs_root)
720 return -ENOENT;
721
722 sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
723 ath9k_debugfs_root);
724 if (!sc->debug.debugfs_phy)
725 goto err;
726
727 #ifdef CONFIG_ATH_DEBUG
728 sc->debug.debugfs_debug = debugfs_create_file("debug",
729 S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_debug);
730 if (!sc->debug.debugfs_debug)
731 goto err;
732 #endif
733
734 sc->debug.debugfs_dma = debugfs_create_file("dma", S_IRUSR,
735 sc->debug.debugfs_phy, sc, &fops_dma);
736 if (!sc->debug.debugfs_dma)
737 goto err;
738
739 sc->debug.debugfs_interrupt = debugfs_create_file("interrupt",
740 S_IRUSR,
741 sc->debug.debugfs_phy,
742 sc, &fops_interrupt);
743 if (!sc->debug.debugfs_interrupt)
744 goto err;
745
746 sc->debug.debugfs_rcstat = debugfs_create_file("rcstat",
747 S_IRUSR,
748 sc->debug.debugfs_phy,
749 sc, &fops_rcstat);
750 if (!sc->debug.debugfs_rcstat)
751 goto err;
752
753 sc->debug.debugfs_wiphy = debugfs_create_file(
754 "wiphy", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc,
755 &fops_wiphy);
756 if (!sc->debug.debugfs_wiphy)
757 goto err;
758
759 sc->debug.debugfs_xmit = debugfs_create_file("xmit",
760 S_IRUSR,
761 sc->debug.debugfs_phy,
762 sc, &fops_xmit);
763 if (!sc->debug.debugfs_xmit)
764 goto err;
765
766 sc->debug.debugfs_recv = debugfs_create_file("recv",
767 S_IRUSR,
768 sc->debug.debugfs_phy,
769 sc, &fops_recv);
770 if (!sc->debug.debugfs_recv)
771 goto err;
772
773 return 0;
774 err:
775 ath9k_exit_debug(ah);
776 return -ENOMEM;
777 }
778
779 void ath9k_exit_debug(struct ath_hw *ah)
780 {
781 struct ath_common *common = ath9k_hw_common(ah);
782 struct ath_softc *sc = (struct ath_softc *) common->priv;
783
784 debugfs_remove(sc->debug.debugfs_recv);
785 debugfs_remove(sc->debug.debugfs_xmit);
786 debugfs_remove(sc->debug.debugfs_wiphy);
787 debugfs_remove(sc->debug.debugfs_rcstat);
788 debugfs_remove(sc->debug.debugfs_interrupt);
789 debugfs_remove(sc->debug.debugfs_dma);
790 debugfs_remove(sc->debug.debugfs_debug);
791 debugfs_remove(sc->debug.debugfs_phy);
792 }
793
794 int ath9k_debug_create_root(void)
795 {
796 ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
797 if (!ath9k_debugfs_root)
798 return -ENOENT;
799
800 return 0;
801 }
802
803 void ath9k_debug_remove_root(void)
804 {
805 debugfs_remove(ath9k_debugfs_root);
806 ath9k_debugfs_root = NULL;
807 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree