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ath9k: unify edma and non-edma tx code, improve tx fifo handling
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / wireless / ath / ath9k / debug.c
blob202399d4fe1737e1d014afcf54b5d3470d2dfdfb
1 /*
2 * Copyright (c) 2008-2011 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 <linux/vmalloc.h>
19 #include <asm/unaligned.h>
20
21 #include "ath9k.h"
22
23 #define REG_WRITE_D(_ah, _reg, _val) \
24 ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg))
25 #define REG_READ_D(_ah, _reg) \
26 ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
27
28 static int ath9k_debugfs_open(struct inode *inode, struct file *file)
29 {
30 file->private_data = inode->i_private;
31 return 0;
32 }
33
34 static ssize_t ath9k_debugfs_read_buf(struct file *file, char __user *user_buf,
35 size_t count, loff_t *ppos)
36 {
37 u8 *buf = file->private_data;
38 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
39 }
40
41 static int ath9k_debugfs_release_buf(struct inode *inode, struct file *file)
42 {
43 vfree(file->private_data);
44 return 0;
45 }
46
47 #ifdef CONFIG_ATH_DEBUG
48
49 static ssize_t read_file_debug(struct file *file, 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 char buf[32];
55 unsigned int len;
56
57 len = sprintf(buf, "0x%08x\n", common->debug_mask);
58 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
59 }
60
61 static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
62 size_t count, loff_t *ppos)
63 {
64 struct ath_softc *sc = file->private_data;
65 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
66 unsigned long mask;
67 char buf[32];
68 ssize_t len;
69
70 len = min(count, sizeof(buf) - 1);
71 if (copy_from_user(buf, user_buf, len))
72 return -EFAULT;
73
74 buf[len] = '\0';
75 if (strict_strtoul(buf, 0, &mask))
76 return -EINVAL;
77
78 common->debug_mask = mask;
79 return count;
80 }
81
82 static const struct file_operations fops_debug = {
83 .read = read_file_debug,
84 .write = write_file_debug,
85 .open = ath9k_debugfs_open,
86 .owner = THIS_MODULE,
87 .llseek = default_llseek,
88 };
89
90 #endif
91
92 #define DMA_BUF_LEN 1024
93
94 static ssize_t read_file_tx_chainmask(struct file *file, char __user *user_buf,
95 size_t count, loff_t *ppos)
96 {
97 struct ath_softc *sc = file->private_data;
98 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
99 char buf[32];
100 unsigned int len;
101
102 len = sprintf(buf, "0x%08x\n", common->tx_chainmask);
103 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
104 }
105
106 static ssize_t write_file_tx_chainmask(struct file *file, const char __user *user_buf,
107 size_t count, loff_t *ppos)
108 {
109 struct ath_softc *sc = file->private_data;
110 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
111 unsigned long mask;
112 char buf[32];
113 ssize_t len;
114
115 len = min(count, sizeof(buf) - 1);
116 if (copy_from_user(buf, user_buf, len))
117 return -EFAULT;
118
119 buf[len] = '\0';
120 if (strict_strtoul(buf, 0, &mask))
121 return -EINVAL;
122
123 common->tx_chainmask = mask;
124 sc->sc_ah->caps.tx_chainmask = mask;
125 return count;
126 }
127
128 static const struct file_operations fops_tx_chainmask = {
129 .read = read_file_tx_chainmask,
130 .write = write_file_tx_chainmask,
131 .open = ath9k_debugfs_open,
132 .owner = THIS_MODULE,
133 .llseek = default_llseek,
134 };
135
136
137 static ssize_t read_file_rx_chainmask(struct file *file, char __user *user_buf,
138 size_t count, loff_t *ppos)
139 {
140 struct ath_softc *sc = file->private_data;
141 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
142 char buf[32];
143 unsigned int len;
144
145 len = sprintf(buf, "0x%08x\n", common->rx_chainmask);
146 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
147 }
148
149 static ssize_t write_file_rx_chainmask(struct file *file, const char __user *user_buf,
150 size_t count, loff_t *ppos)
151 {
152 struct ath_softc *sc = file->private_data;
153 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
154 unsigned long mask;
155 char buf[32];
156 ssize_t len;
157
158 len = min(count, sizeof(buf) - 1);
159 if (copy_from_user(buf, user_buf, len))
160 return -EFAULT;
161
162 buf[len] = '\0';
163 if (strict_strtoul(buf, 0, &mask))
164 return -EINVAL;
165
166 common->rx_chainmask = mask;
167 sc->sc_ah->caps.rx_chainmask = mask;
168 return count;
169 }
170
171 static const struct file_operations fops_rx_chainmask = {
172 .read = read_file_rx_chainmask,
173 .write = write_file_rx_chainmask,
174 .open = ath9k_debugfs_open,
175 .owner = THIS_MODULE,
176 .llseek = default_llseek,
177 };
178
179
180 static ssize_t read_file_dma(struct file *file, char __user *user_buf,
181 size_t count, loff_t *ppos)
182 {
183 struct ath_softc *sc = file->private_data;
184 struct ath_hw *ah = sc->sc_ah;
185 char *buf;
186 int retval;
187 unsigned int len = 0;
188 u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
189 int i, qcuOffset = 0, dcuOffset = 0;
190 u32 *qcuBase = &val[0], *dcuBase = &val[4];
191
192 buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
193 if (!buf)
194 return -ENOMEM;
195
196 ath9k_ps_wakeup(sc);
197
198 REG_WRITE_D(ah, AR_MACMISC,
199 ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
200 (AR_MACMISC_MISC_OBS_BUS_1 <<
201 AR_MACMISC_MISC_OBS_BUS_MSB_S)));
202
203 len += snprintf(buf + len, DMA_BUF_LEN - len,
204 "Raw DMA Debug values:\n");
205
206 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
207 if (i % 4 == 0)
208 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
209
210 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
211 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
212 i, val[i]);
213 }
214
215 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
216 len += snprintf(buf + len, DMA_BUF_LEN - len,
217 "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
218
219 for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
220 if (i == 8) {
221 qcuOffset = 0;
222 qcuBase++;
223 }
224
225 if (i == 6) {
226 dcuOffset = 0;
227 dcuBase++;
228 }
229
230 len += snprintf(buf + len, DMA_BUF_LEN - len,
231 "%2d %2x %1x %2x %2x\n",
232 i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
233 (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
234 val[2] & (0x7 << (i * 3)) >> (i * 3),
235 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
236 }
237
238 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
239
240 len += snprintf(buf + len, DMA_BUF_LEN - len,
241 "qcu_stitch state: %2x qcu_fetch state: %2x\n",
242 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
243 len += snprintf(buf + len, DMA_BUF_LEN - len,
244 "qcu_complete state: %2x dcu_complete state: %2x\n",
245 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
246 len += snprintf(buf + len, DMA_BUF_LEN - len,
247 "dcu_arb state: %2x dcu_fp state: %2x\n",
248 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
249 len += snprintf(buf + len, DMA_BUF_LEN - len,
250 "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
251 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
252 len += snprintf(buf + len, DMA_BUF_LEN - len,
253 "txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
254 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
255 len += snprintf(buf + len, DMA_BUF_LEN - len,
256 "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
257 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
258
259 len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
260 REG_READ_D(ah, AR_OBS_BUS_1));
261 len += snprintf(buf + len, DMA_BUF_LEN - len,
262 "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
263
264 ath9k_ps_restore(sc);
265
266 if (len > DMA_BUF_LEN)
267 len = DMA_BUF_LEN;
268
269 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
270 kfree(buf);
271 return retval;
272 }
273
274 static const struct file_operations fops_dma = {
275 .read = read_file_dma,
276 .open = ath9k_debugfs_open,
277 .owner = THIS_MODULE,
278 .llseek = default_llseek,
279 };
280
281
282 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
283 {
284 if (status)
285 sc->debug.stats.istats.total++;
286 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
287 if (status & ATH9K_INT_RXLP)
288 sc->debug.stats.istats.rxlp++;
289 if (status & ATH9K_INT_RXHP)
290 sc->debug.stats.istats.rxhp++;
291 if (status & ATH9K_INT_BB_WATCHDOG)
292 sc->debug.stats.istats.bb_watchdog++;
293 } else {
294 if (status & ATH9K_INT_RX)
295 sc->debug.stats.istats.rxok++;
296 }
297 if (status & ATH9K_INT_RXEOL)
298 sc->debug.stats.istats.rxeol++;
299 if (status & ATH9K_INT_RXORN)
300 sc->debug.stats.istats.rxorn++;
301 if (status & ATH9K_INT_TX)
302 sc->debug.stats.istats.txok++;
303 if (status & ATH9K_INT_TXURN)
304 sc->debug.stats.istats.txurn++;
305 if (status & ATH9K_INT_MIB)
306 sc->debug.stats.istats.mib++;
307 if (status & ATH9K_INT_RXPHY)
308 sc->debug.stats.istats.rxphyerr++;
309 if (status & ATH9K_INT_RXKCM)
310 sc->debug.stats.istats.rx_keycache_miss++;
311 if (status & ATH9K_INT_SWBA)
312 sc->debug.stats.istats.swba++;
313 if (status & ATH9K_INT_BMISS)
314 sc->debug.stats.istats.bmiss++;
315 if (status & ATH9K_INT_BNR)
316 sc->debug.stats.istats.bnr++;
317 if (status & ATH9K_INT_CST)
318 sc->debug.stats.istats.cst++;
319 if (status & ATH9K_INT_GTT)
320 sc->debug.stats.istats.gtt++;
321 if (status & ATH9K_INT_TIM)
322 sc->debug.stats.istats.tim++;
323 if (status & ATH9K_INT_CABEND)
324 sc->debug.stats.istats.cabend++;
325 if (status & ATH9K_INT_DTIMSYNC)
326 sc->debug.stats.istats.dtimsync++;
327 if (status & ATH9K_INT_DTIM)
328 sc->debug.stats.istats.dtim++;
329 if (status & ATH9K_INT_TSFOOR)
330 sc->debug.stats.istats.tsfoor++;
331 }
332
333 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
334 size_t count, loff_t *ppos)
335 {
336 struct ath_softc *sc = file->private_data;
337 char buf[512];
338 unsigned int len = 0;
339
340 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
341 len += snprintf(buf + len, sizeof(buf) - len,
342 "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp);
343 len += snprintf(buf + len, sizeof(buf) - len,
344 "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp);
345 len += snprintf(buf + len, sizeof(buf) - len,
346 "%8s: %10u\n", "WATCHDOG",
347 sc->debug.stats.istats.bb_watchdog);
348 } else {
349 len += snprintf(buf + len, sizeof(buf) - len,
350 "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
351 }
352 len += snprintf(buf + len, sizeof(buf) - len,
353 "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol);
354 len += snprintf(buf + len, sizeof(buf) - len,
355 "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn);
356 len += snprintf(buf + len, sizeof(buf) - len,
357 "%8s: %10u\n", "TX", sc->debug.stats.istats.txok);
358 len += snprintf(buf + len, sizeof(buf) - len,
359 "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn);
360 len += snprintf(buf + len, sizeof(buf) - len,
361 "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib);
362 len += snprintf(buf + len, sizeof(buf) - len,
363 "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr);
364 len += snprintf(buf + len, sizeof(buf) - len,
365 "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss);
366 len += snprintf(buf + len, sizeof(buf) - len,
367 "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba);
368 len += snprintf(buf + len, sizeof(buf) - len,
369 "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss);
370 len += snprintf(buf + len, sizeof(buf) - len,
371 "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr);
372 len += snprintf(buf + len, sizeof(buf) - len,
373 "%8s: %10u\n", "CST", sc->debug.stats.istats.cst);
374 len += snprintf(buf + len, sizeof(buf) - len,
375 "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt);
376 len += snprintf(buf + len, sizeof(buf) - len,
377 "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim);
378 len += snprintf(buf + len, sizeof(buf) - len,
379 "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend);
380 len += snprintf(buf + len, sizeof(buf) - len,
381 "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync);
382 len += snprintf(buf + len, sizeof(buf) - len,
383 "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
384 len += snprintf(buf + len, sizeof(buf) - len,
385 "%8s: %10u\n", "TSFOOR", sc->debug.stats.istats.tsfoor);
386 len += snprintf(buf + len, sizeof(buf) - len,
387 "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
388
389
390 if (len > sizeof(buf))
391 len = sizeof(buf);
392
393 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
394 }
395
396 static const struct file_operations fops_interrupt = {
397 .read = read_file_interrupt,
398 .open = ath9k_debugfs_open,
399 .owner = THIS_MODULE,
400 .llseek = default_llseek,
401 };
402
403 static const char *channel_type_str(enum nl80211_channel_type t)
404 {
405 switch (t) {
406 case NL80211_CHAN_NO_HT:
407 return "no ht";
408 case NL80211_CHAN_HT20:
409 return "ht20";
410 case NL80211_CHAN_HT40MINUS:
411 return "ht40-";
412 case NL80211_CHAN_HT40PLUS:
413 return "ht40+";
414 default:
415 return "???";
416 }
417 }
418
419 static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
420 size_t count, loff_t *ppos)
421 {
422 struct ath_softc *sc = file->private_data;
423 struct ieee80211_channel *chan = sc->hw->conf.channel;
424 struct ieee80211_conf *conf = &(sc->hw->conf);
425 char buf[512];
426 unsigned int len = 0;
427 u8 addr[ETH_ALEN];
428 u32 tmp;
429
430 len += snprintf(buf + len, sizeof(buf) - len,
431 "%s (chan=%d center-freq: %d MHz channel-type: %d (%s))\n",
432 wiphy_name(sc->hw->wiphy),
433 ieee80211_frequency_to_channel(chan->center_freq),
434 chan->center_freq,
435 conf->channel_type,
436 channel_type_str(conf->channel_type));
437
438 ath9k_ps_wakeup(sc);
439 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
440 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
441 len += snprintf(buf + len, sizeof(buf) - len,
442 "addr: %pM\n", addr);
443 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr);
444 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
445 len += snprintf(buf + len, sizeof(buf) - len,
446 "addrmask: %pM\n", addr);
447 tmp = ath9k_hw_getrxfilter(sc->sc_ah);
448 ath9k_ps_restore(sc);
449 len += snprintf(buf + len, sizeof(buf) - len,
450 "rfilt: 0x%x", tmp);
451 if (tmp & ATH9K_RX_FILTER_UCAST)
452 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
453 if (tmp & ATH9K_RX_FILTER_MCAST)
454 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
455 if (tmp & ATH9K_RX_FILTER_BCAST)
456 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
457 if (tmp & ATH9K_RX_FILTER_CONTROL)
458 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
459 if (tmp & ATH9K_RX_FILTER_BEACON)
460 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
461 if (tmp & ATH9K_RX_FILTER_PROM)
462 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
463 if (tmp & ATH9K_RX_FILTER_PROBEREQ)
464 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
465 if (tmp & ATH9K_RX_FILTER_PHYERR)
466 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR");
467 if (tmp & ATH9K_RX_FILTER_MYBEACON)
468 len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON");
469 if (tmp & ATH9K_RX_FILTER_COMP_BAR)
470 len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
471 if (tmp & ATH9K_RX_FILTER_PSPOLL)
472 len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL");
473 if (tmp & ATH9K_RX_FILTER_PHYRADAR)
474 len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
475 if (tmp & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
476 len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL\n");
477 else
478 len += snprintf(buf + len, sizeof(buf) - len, "\n");
479
480 if (len > sizeof(buf))
481 len = sizeof(buf);
482
483 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
484 }
485
486 static const struct file_operations fops_wiphy = {
487 .read = read_file_wiphy,
488 .open = ath9k_debugfs_open,
489 .owner = THIS_MODULE,
490 .llseek = default_llseek,
491 };
492
493 #define PR_QNUM(_n) sc->tx.txq_map[_n]->axq_qnum
494 #define PR(str, elem) \
495 do { \
496 len += snprintf(buf + len, size - len, \
497 "%s%13u%11u%10u%10u\n", str, \
498 sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].elem, \
499 sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].elem, \
500 sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].elem, \
501 sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].elem); \
502 if (len >= size) \
503 goto done; \
504 } while(0)
505
506 #define PRX(str, elem) \
507 do { \
508 len += snprintf(buf + len, size - len, \
509 "%s%13u%11u%10u%10u\n", str, \
510 (unsigned int)(sc->tx.txq_map[WME_AC_BE]->elem), \
511 (unsigned int)(sc->tx.txq_map[WME_AC_BK]->elem), \
512 (unsigned int)(sc->tx.txq_map[WME_AC_VI]->elem), \
513 (unsigned int)(sc->tx.txq_map[WME_AC_VO]->elem)); \
514 if (len >= size) \
515 goto done; \
516 } while(0)
517
518 #define PRQLE(str, elem) \
519 do { \
520 len += snprintf(buf + len, size - len, \
521 "%s%13i%11i%10i%10i\n", str, \
522 list_empty(&sc->tx.txq_map[WME_AC_BE]->elem), \
523 list_empty(&sc->tx.txq_map[WME_AC_BK]->elem), \
524 list_empty(&sc->tx.txq_map[WME_AC_VI]->elem), \
525 list_empty(&sc->tx.txq_map[WME_AC_VO]->elem)); \
526 if (len >= size) \
527 goto done; \
528 } while (0)
529
530 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
531 size_t count, loff_t *ppos)
532 {
533 struct ath_softc *sc = file->private_data;
534 char *buf;
535 unsigned int len = 0, size = 8000;
536 int i;
537 ssize_t retval = 0;
538 char tmp[32];
539
540 buf = kzalloc(size, GFP_KERNEL);
541 if (buf == NULL)
542 return -ENOMEM;
543
544 len += sprintf(buf, "Num-Tx-Queues: %i tx-queues-setup: 0x%x"
545 " poll-work-seen: %u\n"
546 "%30s %10s%10s%10s\n\n",
547 ATH9K_NUM_TX_QUEUES, sc->tx.txqsetup,
548 sc->tx_complete_poll_work_seen,
549 "BE", "BK", "VI", "VO");
550
551 PR("MPDUs Queued: ", queued);
552 PR("MPDUs Completed: ", completed);
553 PR("Aggregates: ", a_aggr);
554 PR("AMPDUs Queued HW:", a_queued_hw);
555 PR("AMPDUs Queued SW:", a_queued_sw);
556 PR("AMPDUs Completed:", a_completed);
557 PR("AMPDUs Retried: ", a_retries);
558 PR("AMPDUs XRetried: ", a_xretries);
559 PR("FIFO Underrun: ", fifo_underrun);
560 PR("TXOP Exceeded: ", xtxop);
561 PR("TXTIMER Expiry: ", timer_exp);
562 PR("DESC CFG Error: ", desc_cfg_err);
563 PR("DATA Underrun: ", data_underrun);
564 PR("DELIM Underrun: ", delim_underrun);
565 PR("TX-Pkts-All: ", tx_pkts_all);
566 PR("TX-Bytes-All: ", tx_bytes_all);
567 PR("hw-put-tx-buf: ", puttxbuf);
568 PR("hw-tx-start: ", txstart);
569 PR("hw-tx-proc-desc: ", txprocdesc);
570 len += snprintf(buf + len, size - len,
571 "%s%11p%11p%10p%10p\n", "txq-memory-address:",
572 sc->tx.txq_map[WME_AC_BE],
573 sc->tx.txq_map[WME_AC_BK],
574 sc->tx.txq_map[WME_AC_VI],
575 sc->tx.txq_map[WME_AC_VO]);
576 if (len >= size)
577 goto done;
578
579 PRX("axq-qnum: ", axq_qnum);
580 PRX("axq-depth: ", axq_depth);
581 PRX("axq-ampdu_depth: ", axq_ampdu_depth);
582 PRX("axq-stopped ", stopped);
583 PRX("tx-in-progress ", axq_tx_inprogress);
584 PRX("pending-frames ", pending_frames);
585 PRX("txq_headidx: ", txq_headidx);
586 PRX("txq_tailidx: ", txq_headidx);
587
588 PRQLE("axq_q empty: ", axq_q);
589 PRQLE("axq_acq empty: ", axq_acq);
590 for (i = 0; i < ATH_TXFIFO_DEPTH; i++) {
591 snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i);
592 PRQLE(tmp, txq_fifo[i]);
593 }
594
595 /* Print out more detailed queue-info */
596 for (i = 0; i <= WME_AC_BK; i++) {
597 struct ath_txq *txq = &(sc->tx.txq[i]);
598 struct ath_atx_ac *ac;
599 struct ath_atx_tid *tid;
600 if (len >= size)
601 goto done;
602 spin_lock_bh(&txq->axq_lock);
603 if (!list_empty(&txq->axq_acq)) {
604 ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac,
605 list);
606 len += snprintf(buf + len, size - len,
607 "txq[%i] first-ac: %p sched: %i\n",
608 i, ac, ac->sched);
609 if (list_empty(&ac->tid_q) || (len >= size))
610 goto done_for;
611 tid = list_first_entry(&ac->tid_q, struct ath_atx_tid,
612 list);
613 len += snprintf(buf + len, size - len,
614 " first-tid: %p sched: %i paused: %i\n",
615 tid, tid->sched, tid->paused);
616 }
617 done_for:
618 spin_unlock_bh(&txq->axq_lock);
619 }
620
621 done:
622 if (len > size)
623 len = size;
624
625 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
626 kfree(buf);
627
628 return retval;
629 }
630
631 static ssize_t read_file_stations(struct file *file, char __user *user_buf,
632 size_t count, loff_t *ppos)
633 {
634 struct ath_softc *sc = file->private_data;
635 char *buf;
636 unsigned int len = 0, size = 64000;
637 struct ath_node *an = NULL;
638 ssize_t retval = 0;
639 int q;
640
641 buf = kzalloc(size, GFP_KERNEL);
642 if (buf == NULL)
643 return -ENOMEM;
644
645 len += snprintf(buf + len, size - len,
646 "Stations:\n"
647 " tid: addr sched paused buf_q-empty an ac\n"
648 " ac: addr sched tid_q-empty txq\n");
649
650 spin_lock(&sc->nodes_lock);
651 list_for_each_entry(an, &sc->nodes, list) {
652 len += snprintf(buf + len, size - len,
653 "%pM\n", an->sta->addr);
654 if (len >= size)
655 goto done;
656
657 for (q = 0; q < WME_NUM_TID; q++) {
658 struct ath_atx_tid *tid = &(an->tid[q]);
659 len += snprintf(buf + len, size - len,
660 " tid: %p %s %s %i %p %p\n",
661 tid, tid->sched ? "sched" : "idle",
662 tid->paused ? "paused" : "running",
663 list_empty(&tid->buf_q),
664 tid->an, tid->ac);
665 if (len >= size)
666 goto done;
667 }
668
669 for (q = 0; q < WME_NUM_AC; q++) {
670 struct ath_atx_ac *ac = &(an->ac[q]);
671 len += snprintf(buf + len, size - len,
672 " ac: %p %s %i %p\n",
673 ac, ac->sched ? "sched" : "idle",
674 list_empty(&ac->tid_q), ac->txq);
675 if (len >= size)
676 goto done;
677 }
678 }
679
680 done:
681 spin_unlock(&sc->nodes_lock);
682 if (len > size)
683 len = size;
684
685 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
686 kfree(buf);
687
688 return retval;
689 }
690
691 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
692 size_t count, loff_t *ppos)
693 {
694 struct ath_softc *sc = file->private_data;
695 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
696 struct ath_hw *ah = sc->sc_ah;
697 struct ieee80211_hw *hw = sc->hw;
698 char *buf;
699 unsigned int len = 0, size = 8000;
700 ssize_t retval = 0;
701 const char *tmp;
702 unsigned int reg;
703 struct ath9k_vif_iter_data iter_data;
704
705 ath9k_calculate_iter_data(hw, NULL, &iter_data);
706
707 buf = kzalloc(size, GFP_KERNEL);
708 if (buf == NULL)
709 return -ENOMEM;
710
711 switch (sc->sc_ah->opmode) {
712 case NL80211_IFTYPE_ADHOC:
713 tmp = "ADHOC";
714 break;
715 case NL80211_IFTYPE_MESH_POINT:
716 tmp = "MESH";
717 break;
718 case NL80211_IFTYPE_AP:
719 tmp = "AP";
720 break;
721 case NL80211_IFTYPE_STATION:
722 tmp = "STATION";
723 break;
724 default:
725 tmp = "???";
726 break;
727 }
728
729 ath9k_ps_wakeup(sc);
730 len += snprintf(buf + len, size - len,
731 "curbssid: %pM\n"
732 "OP-Mode: %s(%i)\n"
733 "Beacon-Timer-Register: 0x%x\n",
734 common->curbssid,
735 tmp, (int)(sc->sc_ah->opmode),
736 REG_READ(ah, AR_BEACON_PERIOD));
737
738 reg = REG_READ(ah, AR_TIMER_MODE);
739 ath9k_ps_restore(sc);
740 len += snprintf(buf + len, size - len, "Timer-Mode-Register: 0x%x (",
741 reg);
742 if (reg & AR_TBTT_TIMER_EN)
743 len += snprintf(buf + len, size - len, "TBTT ");
744 if (reg & AR_DBA_TIMER_EN)
745 len += snprintf(buf + len, size - len, "DBA ");
746 if (reg & AR_SWBA_TIMER_EN)
747 len += snprintf(buf + len, size - len, "SWBA ");
748 if (reg & AR_HCF_TIMER_EN)
749 len += snprintf(buf + len, size - len, "HCF ");
750 if (reg & AR_TIM_TIMER_EN)
751 len += snprintf(buf + len, size - len, "TIM ");
752 if (reg & AR_DTIM_TIMER_EN)
753 len += snprintf(buf + len, size - len, "DTIM ");
754 len += snprintf(buf + len, size - len, ")\n");
755
756 reg = sc->sc_ah->imask;
757 len += snprintf(buf + len, size - len, "imask: 0x%x (", reg);
758 if (reg & ATH9K_INT_SWBA)
759 len += snprintf(buf + len, size - len, "SWBA ");
760 if (reg & ATH9K_INT_BMISS)
761 len += snprintf(buf + len, size - len, "BMISS ");
762 if (reg & ATH9K_INT_CST)
763 len += snprintf(buf + len, size - len, "CST ");
764 if (reg & ATH9K_INT_RX)
765 len += snprintf(buf + len, size - len, "RX ");
766 if (reg & ATH9K_INT_RXHP)
767 len += snprintf(buf + len, size - len, "RXHP ");
768 if (reg & ATH9K_INT_RXLP)
769 len += snprintf(buf + len, size - len, "RXLP ");
770 if (reg & ATH9K_INT_BB_WATCHDOG)
771 len += snprintf(buf + len, size - len, "BB_WATCHDOG ");
772 /* there are other IRQs if one wanted to add them. */
773 len += snprintf(buf + len, size - len, ")\n");
774
775 len += snprintf(buf + len, size - len,
776 "VIF Counts: AP: %i STA: %i MESH: %i WDS: %i"
777 " ADHOC: %i OTHER: %i nvifs: %hi beacon-vifs: %hi\n",
778 iter_data.naps, iter_data.nstations, iter_data.nmeshes,
779 iter_data.nwds, iter_data.nadhocs, iter_data.nothers,
780 sc->nvifs, sc->nbcnvifs);
781
782 len += snprintf(buf + len, size - len,
783 "Calculated-BSSID-Mask: %pM\n",
784 iter_data.mask);
785
786 if (len > size)
787 len = size;
788
789 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
790 kfree(buf);
791
792 return retval;
793 }
794
795 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
796 struct ath_tx_status *ts, struct ath_txq *txq)
797 {
798 int qnum = txq->axq_qnum;
799
800 TX_STAT_INC(qnum, tx_pkts_all);
801 sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
802
803 if (bf_isampdu(bf)) {
804 if (bf_isxretried(bf))
805 TX_STAT_INC(qnum, a_xretries);
806 else
807 TX_STAT_INC(qnum, a_completed);
808 } else {
809 TX_STAT_INC(qnum, completed);
810 }
811
812 if (ts->ts_status & ATH9K_TXERR_FIFO)
813 TX_STAT_INC(qnum, fifo_underrun);
814 if (ts->ts_status & ATH9K_TXERR_XTXOP)
815 TX_STAT_INC(qnum, xtxop);
816 if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
817 TX_STAT_INC(qnum, timer_exp);
818 if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
819 TX_STAT_INC(qnum, desc_cfg_err);
820 if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
821 TX_STAT_INC(qnum, data_underrun);
822 if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
823 TX_STAT_INC(qnum, delim_underrun);
824 }
825
826 static const struct file_operations fops_xmit = {
827 .read = read_file_xmit,
828 .open = ath9k_debugfs_open,
829 .owner = THIS_MODULE,
830 .llseek = default_llseek,
831 };
832
833 static const struct file_operations fops_stations = {
834 .read = read_file_stations,
835 .open = ath9k_debugfs_open,
836 .owner = THIS_MODULE,
837 .llseek = default_llseek,
838 };
839
840 static const struct file_operations fops_misc = {
841 .read = read_file_misc,
842 .open = ath9k_debugfs_open,
843 .owner = THIS_MODULE,
844 .llseek = default_llseek,
845 };
846
847 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
848 size_t count, loff_t *ppos)
849 {
850 #define PHY_ERR(s, p) \
851 len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \
852 sc->debug.stats.rxstats.phy_err_stats[p]);
853
854 struct ath_softc *sc = file->private_data;
855 char *buf;
856 unsigned int len = 0, size = 1400;
857 ssize_t retval = 0;
858
859 buf = kzalloc(size, GFP_KERNEL);
860 if (buf == NULL)
861 return -ENOMEM;
862
863 len += snprintf(buf + len, size - len,
864 "%18s : %10u\n", "CRC ERR",
865 sc->debug.stats.rxstats.crc_err);
866 len += snprintf(buf + len, size - len,
867 "%18s : %10u\n", "DECRYPT CRC ERR",
868 sc->debug.stats.rxstats.decrypt_crc_err);
869 len += snprintf(buf + len, size - len,
870 "%18s : %10u\n", "PHY ERR",
871 sc->debug.stats.rxstats.phy_err);
872 len += snprintf(buf + len, size - len,
873 "%18s : %10u\n", "MIC ERR",
874 sc->debug.stats.rxstats.mic_err);
875 len += snprintf(buf + len, size - len,
876 "%18s : %10u\n", "PRE-DELIM CRC ERR",
877 sc->debug.stats.rxstats.pre_delim_crc_err);
878 len += snprintf(buf + len, size - len,
879 "%18s : %10u\n", "POST-DELIM CRC ERR",
880 sc->debug.stats.rxstats.post_delim_crc_err);
881 len += snprintf(buf + len, size - len,
882 "%18s : %10u\n", "DECRYPT BUSY ERR",
883 sc->debug.stats.rxstats.decrypt_busy_err);
884
885 len += snprintf(buf + len, size - len,
886 "%18s : %10d\n", "RSSI-CTL0",
887 sc->debug.stats.rxstats.rs_rssi_ctl0);
888
889 len += snprintf(buf + len, size - len,
890 "%18s : %10d\n", "RSSI-CTL1",
891 sc->debug.stats.rxstats.rs_rssi_ctl1);
892
893 len += snprintf(buf + len, size - len,
894 "%18s : %10d\n", "RSSI-CTL2",
895 sc->debug.stats.rxstats.rs_rssi_ctl2);
896
897 len += snprintf(buf + len, size - len,
898 "%18s : %10d\n", "RSSI-EXT0",
899 sc->debug.stats.rxstats.rs_rssi_ext0);
900
901 len += snprintf(buf + len, size - len,
902 "%18s : %10d\n", "RSSI-EXT1",
903 sc->debug.stats.rxstats.rs_rssi_ext1);
904
905 len += snprintf(buf + len, size - len,
906 "%18s : %10d\n", "RSSI-EXT2",
907 sc->debug.stats.rxstats.rs_rssi_ext2);
908
909 len += snprintf(buf + len, size - len,
910 "%18s : %10d\n", "Rx Antenna",
911 sc->debug.stats.rxstats.rs_antenna);
912
913 PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);
914 PHY_ERR("TIMING", ATH9K_PHYERR_TIMING);
915 PHY_ERR("PARITY", ATH9K_PHYERR_PARITY);
916 PHY_ERR("RATE", ATH9K_PHYERR_RATE);
917 PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH);
918 PHY_ERR("RADAR", ATH9K_PHYERR_RADAR);
919 PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE);
920 PHY_ERR("TOR", ATH9K_PHYERR_TOR);
921 PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING);
922 PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
923 PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
924 PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
925 PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP);
926 PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE);
927 PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART);
928 PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT);
929 PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING);
930 PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC);
931 PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
932 PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE);
933 PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART);
934 PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
935 PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP);
936 PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR);
937 PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
938 PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL);
939
940 len += snprintf(buf + len, size - len,
941 "%18s : %10u\n", "RX-Pkts-All",
942 sc->debug.stats.rxstats.rx_pkts_all);
943 len += snprintf(buf + len, size - len,
944 "%18s : %10u\n", "RX-Bytes-All",
945 sc->debug.stats.rxstats.rx_bytes_all);
946
947 if (len > size)
948 len = size;
949
950 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
951 kfree(buf);
952
953 return retval;
954
955 #undef PHY_ERR
956 }
957
958 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
959 {
960 #define RX_STAT_INC(c) sc->debug.stats.rxstats.c++
961 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
962
963 u32 phyerr;
964
965 RX_STAT_INC(rx_pkts_all);
966 sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen;
967
968 if (rs->rs_status & ATH9K_RXERR_CRC)
969 RX_STAT_INC(crc_err);
970 if (rs->rs_status & ATH9K_RXERR_DECRYPT)
971 RX_STAT_INC(decrypt_crc_err);
972 if (rs->rs_status & ATH9K_RXERR_MIC)
973 RX_STAT_INC(mic_err);
974 if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
975 RX_STAT_INC(pre_delim_crc_err);
976 if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
977 RX_STAT_INC(post_delim_crc_err);
978 if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
979 RX_STAT_INC(decrypt_busy_err);
980
981 if (rs->rs_status & ATH9K_RXERR_PHY) {
982 RX_STAT_INC(phy_err);
983 phyerr = rs->rs_phyerr & 0x24;
984 RX_PHY_ERR_INC(phyerr);
985 }
986
987 sc->debug.stats.rxstats.rs_rssi_ctl0 = rs->rs_rssi_ctl0;
988 sc->debug.stats.rxstats.rs_rssi_ctl1 = rs->rs_rssi_ctl1;
989 sc->debug.stats.rxstats.rs_rssi_ctl2 = rs->rs_rssi_ctl2;
990
991 sc->debug.stats.rxstats.rs_rssi_ext0 = rs->rs_rssi_ext0;
992 sc->debug.stats.rxstats.rs_rssi_ext1 = rs->rs_rssi_ext1;
993 sc->debug.stats.rxstats.rs_rssi_ext2 = rs->rs_rssi_ext2;
994
995 sc->debug.stats.rxstats.rs_antenna = rs->rs_antenna;
996
997 #undef RX_STAT_INC
998 #undef RX_PHY_ERR_INC
999 }
1000
1001 static const struct file_operations fops_recv = {
1002 .read = read_file_recv,
1003 .open = ath9k_debugfs_open,
1004 .owner = THIS_MODULE,
1005 .llseek = default_llseek,
1006 };
1007
1008 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
1009 size_t count, loff_t *ppos)
1010 {
1011 struct ath_softc *sc = file->private_data;
1012 char buf[32];
1013 unsigned int len;
1014
1015 len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
1016 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1017 }
1018
1019 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
1020 size_t count, loff_t *ppos)
1021 {
1022 struct ath_softc *sc = file->private_data;
1023 unsigned long regidx;
1024 char buf[32];
1025 ssize_t len;
1026
1027 len = min(count, sizeof(buf) - 1);
1028 if (copy_from_user(buf, user_buf, len))
1029 return -EFAULT;
1030
1031 buf[len] = '\0';
1032 if (strict_strtoul(buf, 0, &regidx))
1033 return -EINVAL;
1034
1035 sc->debug.regidx = regidx;
1036 return count;
1037 }
1038
1039 static const struct file_operations fops_regidx = {
1040 .read = read_file_regidx,
1041 .write = write_file_regidx,
1042 .open = ath9k_debugfs_open,
1043 .owner = THIS_MODULE,
1044 .llseek = default_llseek,
1045 };
1046
1047 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
1048 size_t count, loff_t *ppos)
1049 {
1050 struct ath_softc *sc = file->private_data;
1051 struct ath_hw *ah = sc->sc_ah;
1052 char buf[32];
1053 unsigned int len;
1054 u32 regval;
1055
1056 ath9k_ps_wakeup(sc);
1057 regval = REG_READ_D(ah, sc->debug.regidx);
1058 ath9k_ps_restore(sc);
1059 len = sprintf(buf, "0x%08x\n", regval);
1060 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1061 }
1062
1063 static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
1064 size_t count, loff_t *ppos)
1065 {
1066 struct ath_softc *sc = file->private_data;
1067 struct ath_hw *ah = sc->sc_ah;
1068 unsigned long regval;
1069 char buf[32];
1070 ssize_t len;
1071
1072 len = min(count, sizeof(buf) - 1);
1073 if (copy_from_user(buf, user_buf, len))
1074 return -EFAULT;
1075
1076 buf[len] = '\0';
1077 if (strict_strtoul(buf, 0, &regval))
1078 return -EINVAL;
1079
1080 ath9k_ps_wakeup(sc);
1081 REG_WRITE_D(ah, sc->debug.regidx, regval);
1082 ath9k_ps_restore(sc);
1083 return count;
1084 }
1085
1086 static const struct file_operations fops_regval = {
1087 .read = read_file_regval,
1088 .write = write_file_regval,
1089 .open = ath9k_debugfs_open,
1090 .owner = THIS_MODULE,
1091 .llseek = default_llseek,
1092 };
1093
1094 #define REGDUMP_LINE_SIZE 20
1095
1096 static int open_file_regdump(struct inode *inode, struct file *file)
1097 {
1098 struct ath_softc *sc = inode->i_private;
1099 unsigned int len = 0;
1100 u8 *buf;
1101 int i;
1102 unsigned long num_regs, regdump_len, max_reg_offset;
1103
1104 max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x16bd4 : 0xb500;
1105 num_regs = max_reg_offset / 4 + 1;
1106 regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
1107 buf = vmalloc(regdump_len);
1108 if (!buf)
1109 return -ENOMEM;
1110
1111 ath9k_ps_wakeup(sc);
1112 for (i = 0; i < num_regs; i++)
1113 len += scnprintf(buf + len, regdump_len - len,
1114 "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
1115 ath9k_ps_restore(sc);
1116
1117 file->private_data = buf;
1118
1119 return 0;
1120 }
1121
1122 static const struct file_operations fops_regdump = {
1123 .open = open_file_regdump,
1124 .read = ath9k_debugfs_read_buf,
1125 .release = ath9k_debugfs_release_buf,
1126 .owner = THIS_MODULE,
1127 .llseek = default_llseek,/* read accesses f_pos */
1128 };
1129
1130 int ath9k_init_debug(struct ath_hw *ah)
1131 {
1132 struct ath_common *common = ath9k_hw_common(ah);
1133 struct ath_softc *sc = (struct ath_softc *) common->priv;
1134
1135 sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
1136 sc->hw->wiphy->debugfsdir);
1137 if (!sc->debug.debugfs_phy)
1138 return -ENOMEM;
1139
1140 #ifdef CONFIG_ATH_DEBUG
1141 debugfs_create_file("debug", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1142 sc, &fops_debug);
1143 #endif
1144 debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
1145 &fops_dma);
1146 debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc,
1147 &fops_interrupt);
1148 debugfs_create_file("wiphy", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1149 sc, &fops_wiphy);
1150 debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc,
1151 &fops_xmit);
1152 debugfs_create_file("stations", S_IRUSR, sc->debug.debugfs_phy, sc,
1153 &fops_stations);
1154 debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc,
1155 &fops_misc);
1156 debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc,
1157 &fops_recv);
1158 debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
1159 sc->debug.debugfs_phy, sc, &fops_rx_chainmask);
1160 debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
1161 sc->debug.debugfs_phy, sc, &fops_tx_chainmask);
1162 debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1163 sc, &fops_regidx);
1164 debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1165 sc, &fops_regval);
1166 debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
1167 sc->debug.debugfs_phy,
1168 &ah->config.cwm_ignore_extcca);
1169 debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc,
1170 &fops_regdump);
1171
1172 debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
1173 sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
1174
1175 debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
1176 sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
1177
1178 sc->debug.regidx = 0;
1179 return 0;
1180 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree