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ath9k: Add more information to debugfs xmit file.
[deliverable/linux.git] / drivers / net / wireless / ath / ath9k / debug.c
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 int ath9k_debugfs_open(struct inode *inode, struct file *file)
28 {
29 file->private_data = inode->i_private;
30 return 0;
31 }
32
33 #ifdef CONFIG_ATH_DEBUG
34
35 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
36 size_t count, loff_t *ppos)
37 {
38 struct ath_softc *sc = file->private_data;
39 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
40 char buf[32];
41 unsigned int len;
42
43 len = sprintf(buf, "0x%08x\n", common->debug_mask);
44 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
45 }
46
47 static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
48 size_t count, loff_t *ppos)
49 {
50 struct ath_softc *sc = file->private_data;
51 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
52 unsigned long mask;
53 char buf[32];
54 ssize_t len;
55
56 len = min(count, sizeof(buf) - 1);
57 if (copy_from_user(buf, user_buf, len))
58 return -EFAULT;
59
60 buf[len] = '\0';
61 if (strict_strtoul(buf, 0, &mask))
62 return -EINVAL;
63
64 common->debug_mask = mask;
65 return count;
66 }
67
68 static const struct file_operations fops_debug = {
69 .read = read_file_debug,
70 .write = write_file_debug,
71 .open = ath9k_debugfs_open,
72 .owner = THIS_MODULE,
73 .llseek = default_llseek,
74 };
75
76 #endif
77
78 #define DMA_BUF_LEN 1024
79
80 static ssize_t read_file_tx_chainmask(struct file *file, char __user *user_buf,
81 size_t count, loff_t *ppos)
82 {
83 struct ath_softc *sc = file->private_data;
84 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
85 char buf[32];
86 unsigned int len;
87
88 len = sprintf(buf, "0x%08x\n", common->tx_chainmask);
89 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
90 }
91
92 static ssize_t write_file_tx_chainmask(struct file *file, const char __user *user_buf,
93 size_t count, loff_t *ppos)
94 {
95 struct ath_softc *sc = file->private_data;
96 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
97 unsigned long mask;
98 char buf[32];
99 ssize_t len;
100
101 len = min(count, sizeof(buf) - 1);
102 if (copy_from_user(buf, user_buf, len))
103 return -EFAULT;
104
105 buf[len] = '\0';
106 if (strict_strtoul(buf, 0, &mask))
107 return -EINVAL;
108
109 common->tx_chainmask = mask;
110 sc->sc_ah->caps.tx_chainmask = mask;
111 return count;
112 }
113
114 static const struct file_operations fops_tx_chainmask = {
115 .read = read_file_tx_chainmask,
116 .write = write_file_tx_chainmask,
117 .open = ath9k_debugfs_open,
118 .owner = THIS_MODULE,
119 .llseek = default_llseek,
120 };
121
122
123 static ssize_t read_file_rx_chainmask(struct file *file, char __user *user_buf,
124 size_t count, loff_t *ppos)
125 {
126 struct ath_softc *sc = file->private_data;
127 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
128 char buf[32];
129 unsigned int len;
130
131 len = sprintf(buf, "0x%08x\n", common->rx_chainmask);
132 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
133 }
134
135 static ssize_t write_file_rx_chainmask(struct file *file, const char __user *user_buf,
136 size_t count, loff_t *ppos)
137 {
138 struct ath_softc *sc = file->private_data;
139 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
140 unsigned long mask;
141 char buf[32];
142 ssize_t len;
143
144 len = min(count, sizeof(buf) - 1);
145 if (copy_from_user(buf, user_buf, len))
146 return -EFAULT;
147
148 buf[len] = '\0';
149 if (strict_strtoul(buf, 0, &mask))
150 return -EINVAL;
151
152 common->rx_chainmask = mask;
153 sc->sc_ah->caps.rx_chainmask = mask;
154 return count;
155 }
156
157 static const struct file_operations fops_rx_chainmask = {
158 .read = read_file_rx_chainmask,
159 .write = write_file_rx_chainmask,
160 .open = ath9k_debugfs_open,
161 .owner = THIS_MODULE,
162 .llseek = default_llseek,
163 };
164
165
166 static ssize_t read_file_dma(struct file *file, char __user *user_buf,
167 size_t count, loff_t *ppos)
168 {
169 struct ath_softc *sc = file->private_data;
170 struct ath_hw *ah = sc->sc_ah;
171 char *buf;
172 int retval;
173 unsigned int len = 0;
174 u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
175 int i, qcuOffset = 0, dcuOffset = 0;
176 u32 *qcuBase = &val[0], *dcuBase = &val[4];
177
178 buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
179 if (!buf)
180 return -ENOMEM;
181
182 ath9k_ps_wakeup(sc);
183
184 REG_WRITE_D(ah, AR_MACMISC,
185 ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
186 (AR_MACMISC_MISC_OBS_BUS_1 <<
187 AR_MACMISC_MISC_OBS_BUS_MSB_S)));
188
189 len += snprintf(buf + len, DMA_BUF_LEN - len,
190 "Raw DMA Debug values:\n");
191
192 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
193 if (i % 4 == 0)
194 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
195
196 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
197 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
198 i, val[i]);
199 }
200
201 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
202 len += snprintf(buf + len, DMA_BUF_LEN - len,
203 "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
204
205 for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
206 if (i == 8) {
207 qcuOffset = 0;
208 qcuBase++;
209 }
210
211 if (i == 6) {
212 dcuOffset = 0;
213 dcuBase++;
214 }
215
216 len += snprintf(buf + len, DMA_BUF_LEN - len,
217 "%2d %2x %1x %2x %2x\n",
218 i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
219 (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
220 val[2] & (0x7 << (i * 3)) >> (i * 3),
221 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
222 }
223
224 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
225
226 len += snprintf(buf + len, DMA_BUF_LEN - len,
227 "qcu_stitch state: %2x qcu_fetch state: %2x\n",
228 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
229 len += snprintf(buf + len, DMA_BUF_LEN - len,
230 "qcu_complete state: %2x dcu_complete state: %2x\n",
231 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
232 len += snprintf(buf + len, DMA_BUF_LEN - len,
233 "dcu_arb state: %2x dcu_fp state: %2x\n",
234 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
235 len += snprintf(buf + len, DMA_BUF_LEN - len,
236 "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
237 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
238 len += snprintf(buf + len, DMA_BUF_LEN - len,
239 "txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
240 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
241 len += snprintf(buf + len, DMA_BUF_LEN - len,
242 "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
243 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
244
245 len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
246 REG_READ_D(ah, AR_OBS_BUS_1));
247 len += snprintf(buf + len, DMA_BUF_LEN - len,
248 "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
249
250 ath9k_ps_restore(sc);
251
252 if (len > DMA_BUF_LEN)
253 len = DMA_BUF_LEN;
254
255 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
256 kfree(buf);
257 return retval;
258 }
259
260 static const struct file_operations fops_dma = {
261 .read = read_file_dma,
262 .open = ath9k_debugfs_open,
263 .owner = THIS_MODULE,
264 .llseek = default_llseek,
265 };
266
267
268 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
269 {
270 if (status)
271 sc->debug.stats.istats.total++;
272 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
273 if (status & ATH9K_INT_RXLP)
274 sc->debug.stats.istats.rxlp++;
275 if (status & ATH9K_INT_RXHP)
276 sc->debug.stats.istats.rxhp++;
277 if (status & ATH9K_INT_BB_WATCHDOG)
278 sc->debug.stats.istats.bb_watchdog++;
279 } else {
280 if (status & ATH9K_INT_RX)
281 sc->debug.stats.istats.rxok++;
282 }
283 if (status & ATH9K_INT_RXEOL)
284 sc->debug.stats.istats.rxeol++;
285 if (status & ATH9K_INT_RXORN)
286 sc->debug.stats.istats.rxorn++;
287 if (status & ATH9K_INT_TX)
288 sc->debug.stats.istats.txok++;
289 if (status & ATH9K_INT_TXURN)
290 sc->debug.stats.istats.txurn++;
291 if (status & ATH9K_INT_MIB)
292 sc->debug.stats.istats.mib++;
293 if (status & ATH9K_INT_RXPHY)
294 sc->debug.stats.istats.rxphyerr++;
295 if (status & ATH9K_INT_RXKCM)
296 sc->debug.stats.istats.rx_keycache_miss++;
297 if (status & ATH9K_INT_SWBA)
298 sc->debug.stats.istats.swba++;
299 if (status & ATH9K_INT_BMISS)
300 sc->debug.stats.istats.bmiss++;
301 if (status & ATH9K_INT_BNR)
302 sc->debug.stats.istats.bnr++;
303 if (status & ATH9K_INT_CST)
304 sc->debug.stats.istats.cst++;
305 if (status & ATH9K_INT_GTT)
306 sc->debug.stats.istats.gtt++;
307 if (status & ATH9K_INT_TIM)
308 sc->debug.stats.istats.tim++;
309 if (status & ATH9K_INT_CABEND)
310 sc->debug.stats.istats.cabend++;
311 if (status & ATH9K_INT_DTIMSYNC)
312 sc->debug.stats.istats.dtimsync++;
313 if (status & ATH9K_INT_DTIM)
314 sc->debug.stats.istats.dtim++;
315 }
316
317 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
318 size_t count, loff_t *ppos)
319 {
320 struct ath_softc *sc = file->private_data;
321 char buf[512];
322 unsigned int len = 0;
323
324 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
325 len += snprintf(buf + len, sizeof(buf) - len,
326 "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp);
327 len += snprintf(buf + len, sizeof(buf) - len,
328 "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp);
329 len += snprintf(buf + len, sizeof(buf) - len,
330 "%8s: %10u\n", "WATCHDOG",
331 sc->debug.stats.istats.bb_watchdog);
332 } else {
333 len += snprintf(buf + len, sizeof(buf) - len,
334 "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
335 }
336 len += snprintf(buf + len, sizeof(buf) - len,
337 "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol);
338 len += snprintf(buf + len, sizeof(buf) - len,
339 "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn);
340 len += snprintf(buf + len, sizeof(buf) - len,
341 "%8s: %10u\n", "TX", sc->debug.stats.istats.txok);
342 len += snprintf(buf + len, sizeof(buf) - len,
343 "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn);
344 len += snprintf(buf + len, sizeof(buf) - len,
345 "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib);
346 len += snprintf(buf + len, sizeof(buf) - len,
347 "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr);
348 len += snprintf(buf + len, sizeof(buf) - len,
349 "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss);
350 len += snprintf(buf + len, sizeof(buf) - len,
351 "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba);
352 len += snprintf(buf + len, sizeof(buf) - len,
353 "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss);
354 len += snprintf(buf + len, sizeof(buf) - len,
355 "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr);
356 len += snprintf(buf + len, sizeof(buf) - len,
357 "%8s: %10u\n", "CST", sc->debug.stats.istats.cst);
358 len += snprintf(buf + len, sizeof(buf) - len,
359 "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt);
360 len += snprintf(buf + len, sizeof(buf) - len,
361 "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim);
362 len += snprintf(buf + len, sizeof(buf) - len,
363 "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend);
364 len += snprintf(buf + len, sizeof(buf) - len,
365 "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync);
366 len += snprintf(buf + len, sizeof(buf) - len,
367 "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
368 len += snprintf(buf + len, sizeof(buf) - len,
369 "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
370
371 if (len > sizeof(buf))
372 len = sizeof(buf);
373
374 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
375 }
376
377 static const struct file_operations fops_interrupt = {
378 .read = read_file_interrupt,
379 .open = ath9k_debugfs_open,
380 .owner = THIS_MODULE,
381 .llseek = default_llseek,
382 };
383
384 static const char * ath_wiphy_state_str(enum ath_wiphy_state state)
385 {
386 switch (state) {
387 case ATH_WIPHY_INACTIVE:
388 return "INACTIVE";
389 case ATH_WIPHY_ACTIVE:
390 return "ACTIVE";
391 case ATH_WIPHY_PAUSING:
392 return "PAUSING";
393 case ATH_WIPHY_PAUSED:
394 return "PAUSED";
395 case ATH_WIPHY_SCAN:
396 return "SCAN";
397 }
398 return "?";
399 }
400
401 static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
402 size_t count, loff_t *ppos)
403 {
404 struct ath_softc *sc = file->private_data;
405 struct ath_wiphy *aphy = sc->pri_wiphy;
406 struct ieee80211_channel *chan = aphy->hw->conf.channel;
407 char buf[512];
408 unsigned int len = 0;
409 int i;
410 u8 addr[ETH_ALEN];
411 u32 tmp;
412
413 len += snprintf(buf + len, sizeof(buf) - len,
414 "primary: %s (%s chan=%d ht=%d)\n",
415 wiphy_name(sc->pri_wiphy->hw->wiphy),
416 ath_wiphy_state_str(sc->pri_wiphy->state),
417 ieee80211_frequency_to_channel(chan->center_freq),
418 aphy->chan_is_ht);
419
420 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
421 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
422 len += snprintf(buf + len, sizeof(buf) - len,
423 "addr: %pM\n", addr);
424 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr);
425 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
426 len += snprintf(buf + len, sizeof(buf) - len,
427 "addrmask: %pM\n", addr);
428 tmp = ath9k_hw_getrxfilter(sc->sc_ah);
429 len += snprintf(buf + len, sizeof(buf) - len,
430 "rfilt: 0x%x", tmp);
431 if (tmp & ATH9K_RX_FILTER_UCAST)
432 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
433 if (tmp & ATH9K_RX_FILTER_MCAST)
434 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
435 if (tmp & ATH9K_RX_FILTER_BCAST)
436 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
437 if (tmp & ATH9K_RX_FILTER_CONTROL)
438 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
439 if (tmp & ATH9K_RX_FILTER_BEACON)
440 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
441 if (tmp & ATH9K_RX_FILTER_PROM)
442 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
443 if (tmp & ATH9K_RX_FILTER_PROBEREQ)
444 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
445 if (tmp & ATH9K_RX_FILTER_PHYERR)
446 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR");
447 if (tmp & ATH9K_RX_FILTER_MYBEACON)
448 len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON");
449 if (tmp & ATH9K_RX_FILTER_COMP_BAR)
450 len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
451 if (tmp & ATH9K_RX_FILTER_PSPOLL)
452 len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL");
453 if (tmp & ATH9K_RX_FILTER_PHYRADAR)
454 len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
455 if (tmp & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
456 len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL\n");
457 else
458 len += snprintf(buf + len, sizeof(buf) - len, "\n");
459
460 /* Put variable-length stuff down here, and check for overflows. */
461 for (i = 0; i < sc->num_sec_wiphy; i++) {
462 struct ath_wiphy *aphy_tmp = sc->sec_wiphy[i];
463 if (aphy_tmp == NULL)
464 continue;
465 chan = aphy_tmp->hw->conf.channel;
466 len += snprintf(buf + len, sizeof(buf) - len,
467 "secondary: %s (%s chan=%d ht=%d)\n",
468 wiphy_name(aphy_tmp->hw->wiphy),
469 ath_wiphy_state_str(aphy_tmp->state),
470 ieee80211_frequency_to_channel(chan->center_freq),
471 aphy_tmp->chan_is_ht);
472 }
473 if (len > sizeof(buf))
474 len = sizeof(buf);
475
476 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
477 }
478
479 static struct ath_wiphy * get_wiphy(struct ath_softc *sc, const char *name)
480 {
481 int i;
482 if (strcmp(name, wiphy_name(sc->pri_wiphy->hw->wiphy)) == 0)
483 return sc->pri_wiphy;
484 for (i = 0; i < sc->num_sec_wiphy; i++) {
485 struct ath_wiphy *aphy = sc->sec_wiphy[i];
486 if (aphy && strcmp(name, wiphy_name(aphy->hw->wiphy)) == 0)
487 return aphy;
488 }
489 return NULL;
490 }
491
492 static int del_wiphy(struct ath_softc *sc, const char *name)
493 {
494 struct ath_wiphy *aphy = get_wiphy(sc, name);
495 if (!aphy)
496 return -ENOENT;
497 return ath9k_wiphy_del(aphy);
498 }
499
500 static int pause_wiphy(struct ath_softc *sc, const char *name)
501 {
502 struct ath_wiphy *aphy = get_wiphy(sc, name);
503 if (!aphy)
504 return -ENOENT;
505 return ath9k_wiphy_pause(aphy);
506 }
507
508 static int unpause_wiphy(struct ath_softc *sc, const char *name)
509 {
510 struct ath_wiphy *aphy = get_wiphy(sc, name);
511 if (!aphy)
512 return -ENOENT;
513 return ath9k_wiphy_unpause(aphy);
514 }
515
516 static int select_wiphy(struct ath_softc *sc, const char *name)
517 {
518 struct ath_wiphy *aphy = get_wiphy(sc, name);
519 if (!aphy)
520 return -ENOENT;
521 return ath9k_wiphy_select(aphy);
522 }
523
524 static int schedule_wiphy(struct ath_softc *sc, const char *msec)
525 {
526 ath9k_wiphy_set_scheduler(sc, simple_strtoul(msec, NULL, 0));
527 return 0;
528 }
529
530 static ssize_t write_file_wiphy(struct file *file, const char __user *user_buf,
531 size_t count, loff_t *ppos)
532 {
533 struct ath_softc *sc = file->private_data;
534 char buf[50];
535 size_t len;
536
537 len = min(count, sizeof(buf) - 1);
538 if (copy_from_user(buf, user_buf, len))
539 return -EFAULT;
540 buf[len] = '\0';
541 if (len > 0 && buf[len - 1] == '\n')
542 buf[len - 1] = '\0';
543
544 if (strncmp(buf, "add", 3) == 0) {
545 int res = ath9k_wiphy_add(sc);
546 if (res < 0)
547 return res;
548 } else if (strncmp(buf, "del=", 4) == 0) {
549 int res = del_wiphy(sc, buf + 4);
550 if (res < 0)
551 return res;
552 } else if (strncmp(buf, "pause=", 6) == 0) {
553 int res = pause_wiphy(sc, buf + 6);
554 if (res < 0)
555 return res;
556 } else if (strncmp(buf, "unpause=", 8) == 0) {
557 int res = unpause_wiphy(sc, buf + 8);
558 if (res < 0)
559 return res;
560 } else if (strncmp(buf, "select=", 7) == 0) {
561 int res = select_wiphy(sc, buf + 7);
562 if (res < 0)
563 return res;
564 } else if (strncmp(buf, "schedule=", 9) == 0) {
565 int res = schedule_wiphy(sc, buf + 9);
566 if (res < 0)
567 return res;
568 } else
569 return -EOPNOTSUPP;
570
571 return count;
572 }
573
574 static const struct file_operations fops_wiphy = {
575 .read = read_file_wiphy,
576 .write = write_file_wiphy,
577 .open = ath9k_debugfs_open,
578 .owner = THIS_MODULE,
579 .llseek = default_llseek,
580 };
581
582 #define PR(str, elem) \
583 do { \
584 len += snprintf(buf + len, size - len, \
585 "%s%13u%11u%10u%10u\n", str, \
586 sc->debug.stats.txstats[WME_AC_BE].elem, \
587 sc->debug.stats.txstats[WME_AC_BK].elem, \
588 sc->debug.stats.txstats[WME_AC_VI].elem, \
589 sc->debug.stats.txstats[WME_AC_VO].elem); \
590 } while(0)
591
592 #define PRX(str, elem) \
593 do { \
594 len += snprintf(buf + len, size - len, \
595 "%s%13u%11u%10u%10u\n", str, \
596 (unsigned int)(sc->tx.txq[WME_AC_BE].elem), \
597 (unsigned int)(sc->tx.txq[WME_AC_BK].elem), \
598 (unsigned int)(sc->tx.txq[WME_AC_VI].elem), \
599 (unsigned int)(sc->tx.txq[WME_AC_VO].elem)); \
600 } while(0)
601
602 #define PRQLE(str, elem) \
603 do { \
604 len += snprintf(buf + len, size - len, \
605 "%s%13i%11i%10i%10i\n", str, \
606 list_empty(&sc->tx.txq[WME_AC_BE].elem), \
607 list_empty(&sc->tx.txq[WME_AC_BK].elem), \
608 list_empty(&sc->tx.txq[WME_AC_VI].elem), \
609 list_empty(&sc->tx.txq[WME_AC_VO].elem)); \
610 } while (0)
611
612 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
613 size_t count, loff_t *ppos)
614 {
615 struct ath_softc *sc = file->private_data;
616 char *buf;
617 unsigned int len = 0, size = 4000;
618 int i;
619 ssize_t retval = 0;
620 char tmp[32];
621
622 buf = kzalloc(size, GFP_KERNEL);
623 if (buf == NULL)
624 return -ENOMEM;
625
626 len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
627
628 PR("MPDUs Queued: ", queued);
629 PR("MPDUs Completed: ", completed);
630 PR("Aggregates: ", a_aggr);
631 PR("AMPDUs Queued: ", a_queued);
632 PR("AMPDUs Completed:", a_completed);
633 PR("AMPDUs Retried: ", a_retries);
634 PR("AMPDUs XRetried: ", a_xretries);
635 PR("FIFO Underrun: ", fifo_underrun);
636 PR("TXOP Exceeded: ", xtxop);
637 PR("TXTIMER Expiry: ", timer_exp);
638 PR("DESC CFG Error: ", desc_cfg_err);
639 PR("DATA Underrun: ", data_underrun);
640 PR("DELIM Underrun: ", delim_underrun);
641 PR("TX-Pkts-All: ", tx_pkts_all);
642 PR("TX-Bytes-All: ", tx_bytes_all);
643 PR("hw-put-tx-buf: ", puttxbuf);
644 PR("hw-tx-start: ", txstart);
645 PR("hw-tx-proc-desc: ", txprocdesc);
646
647 PRX("axq-qnum: ", axq_qnum);
648 PRX("axq-depth: ", axq_depth);
649 PRX("axq-ampdu_depth: ", axq_ampdu_depth);
650 PRX("axq-stopped ", stopped);
651 PRX("tx-in-progress ", axq_tx_inprogress);
652 PRX("pending-frames ", pending_frames);
653 PRX("txq_headidx: ", txq_headidx);
654 PRX("txq_tailidx: ", txq_headidx);
655
656 PRQLE("axq_q empty: ", axq_q);
657 PRQLE("axq_acq empty: ", axq_acq);
658 PRQLE("txq_fifo_pending: ", txq_fifo_pending);
659 for (i = 0; i < ATH_TXFIFO_DEPTH; i++) {
660 snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i);
661 PRQLE(tmp, txq_fifo[i]);
662 }
663 if (len > size)
664 len = size;
665
666 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
667 kfree(buf);
668
669 return retval;
670 }
671
672 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
673 struct ath_tx_status *ts)
674 {
675 int qnum = skb_get_queue_mapping(bf->bf_mpdu);
676
677 TX_STAT_INC(qnum, tx_pkts_all);
678 sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
679
680 if (bf_isampdu(bf)) {
681 if (bf_isxretried(bf))
682 TX_STAT_INC(qnum, a_xretries);
683 else
684 TX_STAT_INC(qnum, a_completed);
685 } else {
686 TX_STAT_INC(qnum, completed);
687 }
688
689 if (ts->ts_status & ATH9K_TXERR_FIFO)
690 TX_STAT_INC(qnum, fifo_underrun);
691 if (ts->ts_status & ATH9K_TXERR_XTXOP)
692 TX_STAT_INC(qnum, xtxop);
693 if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
694 TX_STAT_INC(qnum, timer_exp);
695 if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
696 TX_STAT_INC(qnum, desc_cfg_err);
697 if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
698 TX_STAT_INC(qnum, data_underrun);
699 if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
700 TX_STAT_INC(qnum, delim_underrun);
701 }
702
703 static const struct file_operations fops_xmit = {
704 .read = read_file_xmit,
705 .open = ath9k_debugfs_open,
706 .owner = THIS_MODULE,
707 .llseek = default_llseek,
708 };
709
710 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
711 size_t count, loff_t *ppos)
712 {
713 #define PHY_ERR(s, p) \
714 len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \
715 sc->debug.stats.rxstats.phy_err_stats[p]);
716
717 struct ath_softc *sc = file->private_data;
718 char *buf;
719 unsigned int len = 0, size = 1152;
720 ssize_t retval = 0;
721
722 buf = kzalloc(size, GFP_KERNEL);
723 if (buf == NULL)
724 return -ENOMEM;
725
726 len += snprintf(buf + len, size - len,
727 "%18s : %10u\n", "CRC ERR",
728 sc->debug.stats.rxstats.crc_err);
729 len += snprintf(buf + len, size - len,
730 "%18s : %10u\n", "DECRYPT CRC ERR",
731 sc->debug.stats.rxstats.decrypt_crc_err);
732 len += snprintf(buf + len, size - len,
733 "%18s : %10u\n", "PHY ERR",
734 sc->debug.stats.rxstats.phy_err);
735 len += snprintf(buf + len, size - len,
736 "%18s : %10u\n", "MIC ERR",
737 sc->debug.stats.rxstats.mic_err);
738 len += snprintf(buf + len, size - len,
739 "%18s : %10u\n", "PRE-DELIM CRC ERR",
740 sc->debug.stats.rxstats.pre_delim_crc_err);
741 len += snprintf(buf + len, size - len,
742 "%18s : %10u\n", "POST-DELIM CRC ERR",
743 sc->debug.stats.rxstats.post_delim_crc_err);
744 len += snprintf(buf + len, size - len,
745 "%18s : %10u\n", "DECRYPT BUSY ERR",
746 sc->debug.stats.rxstats.decrypt_busy_err);
747
748 PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);
749 PHY_ERR("TIMING", ATH9K_PHYERR_TIMING);
750 PHY_ERR("PARITY", ATH9K_PHYERR_PARITY);
751 PHY_ERR("RATE", ATH9K_PHYERR_RATE);
752 PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH);
753 PHY_ERR("RADAR", ATH9K_PHYERR_RADAR);
754 PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE);
755 PHY_ERR("TOR", ATH9K_PHYERR_TOR);
756 PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING);
757 PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
758 PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
759 PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
760 PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP);
761 PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE);
762 PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART);
763 PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT);
764 PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING);
765 PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC);
766 PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
767 PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE);
768 PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART);
769 PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
770 PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP);
771 PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR);
772 PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
773 PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL);
774
775 len += snprintf(buf + len, size - len,
776 "%18s : %10u\n", "RX-Pkts-All",
777 sc->debug.stats.rxstats.rx_pkts_all);
778 len += snprintf(buf + len, size - len,
779 "%18s : %10u\n", "RX-Bytes-All",
780 sc->debug.stats.rxstats.rx_bytes_all);
781
782 if (len > size)
783 len = size;
784
785 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
786 kfree(buf);
787
788 return retval;
789
790 #undef PHY_ERR
791 }
792
793 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
794 {
795 #define RX_STAT_INC(c) sc->debug.stats.rxstats.c++
796 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
797
798 u32 phyerr;
799
800 RX_STAT_INC(rx_pkts_all);
801 sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen;
802
803 if (rs->rs_status & ATH9K_RXERR_CRC)
804 RX_STAT_INC(crc_err);
805 if (rs->rs_status & ATH9K_RXERR_DECRYPT)
806 RX_STAT_INC(decrypt_crc_err);
807 if (rs->rs_status & ATH9K_RXERR_MIC)
808 RX_STAT_INC(mic_err);
809 if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
810 RX_STAT_INC(pre_delim_crc_err);
811 if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
812 RX_STAT_INC(post_delim_crc_err);
813 if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
814 RX_STAT_INC(decrypt_busy_err);
815
816 if (rs->rs_status & ATH9K_RXERR_PHY) {
817 RX_STAT_INC(phy_err);
818 phyerr = rs->rs_phyerr & 0x24;
819 RX_PHY_ERR_INC(phyerr);
820 }
821
822 #undef RX_STAT_INC
823 #undef RX_PHY_ERR_INC
824 }
825
826 static const struct file_operations fops_recv = {
827 .read = read_file_recv,
828 .open = ath9k_debugfs_open,
829 .owner = THIS_MODULE,
830 .llseek = default_llseek,
831 };
832
833 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
834 size_t count, loff_t *ppos)
835 {
836 struct ath_softc *sc = file->private_data;
837 char buf[32];
838 unsigned int len;
839
840 len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
841 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
842 }
843
844 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
845 size_t count, loff_t *ppos)
846 {
847 struct ath_softc *sc = file->private_data;
848 unsigned long regidx;
849 char buf[32];
850 ssize_t len;
851
852 len = min(count, sizeof(buf) - 1);
853 if (copy_from_user(buf, user_buf, len))
854 return -EFAULT;
855
856 buf[len] = '\0';
857 if (strict_strtoul(buf, 0, &regidx))
858 return -EINVAL;
859
860 sc->debug.regidx = regidx;
861 return count;
862 }
863
864 static const struct file_operations fops_regidx = {
865 .read = read_file_regidx,
866 .write = write_file_regidx,
867 .open = ath9k_debugfs_open,
868 .owner = THIS_MODULE,
869 .llseek = default_llseek,
870 };
871
872 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
873 size_t count, loff_t *ppos)
874 {
875 struct ath_softc *sc = file->private_data;
876 struct ath_hw *ah = sc->sc_ah;
877 char buf[32];
878 unsigned int len;
879 u32 regval;
880
881 regval = REG_READ_D(ah, sc->debug.regidx);
882 len = sprintf(buf, "0x%08x\n", regval);
883 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
884 }
885
886 static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
887 size_t count, loff_t *ppos)
888 {
889 struct ath_softc *sc = file->private_data;
890 struct ath_hw *ah = sc->sc_ah;
891 unsigned long regval;
892 char buf[32];
893 ssize_t len;
894
895 len = min(count, sizeof(buf) - 1);
896 if (copy_from_user(buf, user_buf, len))
897 return -EFAULT;
898
899 buf[len] = '\0';
900 if (strict_strtoul(buf, 0, &regval))
901 return -EINVAL;
902
903 REG_WRITE_D(ah, sc->debug.regidx, regval);
904 return count;
905 }
906
907 static const struct file_operations fops_regval = {
908 .read = read_file_regval,
909 .write = write_file_regval,
910 .open = ath9k_debugfs_open,
911 .owner = THIS_MODULE,
912 .llseek = default_llseek,
913 };
914
915 int ath9k_init_debug(struct ath_hw *ah)
916 {
917 struct ath_common *common = ath9k_hw_common(ah);
918 struct ath_softc *sc = (struct ath_softc *) common->priv;
919
920 sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
921 sc->hw->wiphy->debugfsdir);
922 if (!sc->debug.debugfs_phy)
923 return -ENOMEM;
924
925 #ifdef CONFIG_ATH_DEBUG
926 if (!debugfs_create_file("debug", S_IRUSR | S_IWUSR,
927 sc->debug.debugfs_phy, sc, &fops_debug))
928 goto err;
929 #endif
930
931 if (!debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy,
932 sc, &fops_dma))
933 goto err;
934
935 if (!debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy,
936 sc, &fops_interrupt))
937 goto err;
938
939 if (!debugfs_create_file("wiphy", S_IRUSR | S_IWUSR,
940 sc->debug.debugfs_phy, sc, &fops_wiphy))
941 goto err;
942
943 if (!debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy,
944 sc, &fops_xmit))
945 goto err;
946
947 if (!debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy,
948 sc, &fops_recv))
949 goto err;
950
951 if (!debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
952 sc->debug.debugfs_phy, sc, &fops_rx_chainmask))
953 goto err;
954
955 if (!debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
956 sc->debug.debugfs_phy, sc, &fops_tx_chainmask))
957 goto err;
958
959 if (!debugfs_create_file("regidx", S_IRUSR | S_IWUSR,
960 sc->debug.debugfs_phy, sc, &fops_regidx))
961 goto err;
962
963 if (!debugfs_create_file("regval", S_IRUSR | S_IWUSR,
964 sc->debug.debugfs_phy, sc, &fops_regval))
965 goto err;
966
967 if (!debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
968 sc->debug.debugfs_phy, &ah->config.cwm_ignore_extcca))
969 goto err;
970
971 sc->debug.regidx = 0;
972 return 0;
973 err:
974 debugfs_remove_recursive(sc->debug.debugfs_phy);
975 sc->debug.debugfs_phy = NULL;
976 return -ENOMEM;
977 }
Linux kernel - Deliverables
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