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[net-next-2.6.git] / drivers / net / wireless / ath / ath9k / debug.c
CommitLineData
88b126af 1/*
cee075a2 2 * Copyright (c) 2008-2009 Atheros Communications Inc.
88b126af
S		 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
5a0e3ad6 17#include <linux/slab.h>
52103115
GJ		 18#include <asm/unaligned.h>
19
394cf0a1 20#include "ath9k.h"
88b126af 21
475a6e4d
LR		 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
19d8bc22
GJ		 27static struct dentry *ath9k_debugfs_root;
28
2a163c6d
S		 29static int ath9k_debugfs_open(struct inode *inode, struct file *file)
30{
31 file->private_data = inode->i_private;
32 return 0;
33}
34
a830df07
FF		 35#ifdef CONFIG_ATH_DEBUG
36
2493928e
JH		 37static 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;
c46917bb 41 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
2493928e 42 char buf[32];
581f725c
VT		 43 unsigned int len;
44
2b87f3aa 45 len = sprintf(buf, "0x%08x\n", common->debug_mask);
2493928e
JH		 46 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
47}
48
49static 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;
c46917bb 53 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
2493928e
JH		 54 unsigned long mask;
55 char buf[32];
581f725c
VT		 56 ssize_t len;
57
58 len = min(count, sizeof(buf) - 1);
59 if (copy_from_user(buf, user_buf, len))
04236066 60 return -EFAULT;
581f725c
VT		 61
62 buf[len] = '\0';
63 if (strict_strtoul(buf, 0, &mask))
64 return -EINVAL;
65
c46917bb 66 common->debug_mask = mask;
2493928e
JH		 67 return count;
68}
69
70static const struct file_operations fops_debug = {
71 .read = read_file_debug,
72 .write = write_file_debug,
73 .open = ath9k_debugfs_open,
6038f373
AB		 74 .owner = THIS_MODULE,
75 .llseek = default_llseek,
2493928e
JH		 76};
77
a830df07
FF		 78#endif
79
991a0987
PR		 80#define DMA_BUF_LEN 1024
81
15340694
FF		 82static ssize_t read_file_tx_chainmask(struct file *file, char __user *user_buf,
83 size_t count, loff_t *ppos)
84{
85 struct ath_softc *sc = file->private_data;
86 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
87 char buf[32];
88 unsigned int len;
89
2b87f3aa 90 len = sprintf(buf, "0x%08x\n", common->tx_chainmask);
15340694
FF		 91 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
92}
93
94static ssize_t write_file_tx_chainmask(struct file *file, const 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 unsigned long mask;
100 char buf[32];
101 ssize_t len;
102
103 len = min(count, sizeof(buf) - 1);
104 if (copy_from_user(buf, user_buf, len))
04236066 105 return -EFAULT;
15340694
FF		 106
107 buf[len] = '\0';
108 if (strict_strtoul(buf, 0, &mask))
109 return -EINVAL;
110
111 common->tx_chainmask = mask;
112 sc->sc_ah->caps.tx_chainmask = mask;
113 return count;
114}
115
116static const struct file_operations fops_tx_chainmask = {
117 .read = read_file_tx_chainmask,
118 .write = write_file_tx_chainmask,
119 .open = ath9k_debugfs_open,
6038f373
AB		 120 .owner = THIS_MODULE,
121 .llseek = default_llseek,
15340694
FF		 122};
123
124
125static ssize_t read_file_rx_chainmask(struct file *file, char __user *user_buf,
126 size_t count, loff_t *ppos)
127{
128 struct ath_softc *sc = file->private_data;
129 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
130 char buf[32];
131 unsigned int len;
132
2b87f3aa 133 len = sprintf(buf, "0x%08x\n", common->rx_chainmask);
15340694
FF		 134 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
135}
136
137static ssize_t write_file_rx_chainmask(struct file *file, const 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 unsigned long mask;
143 char buf[32];
144 ssize_t len;
145
146 len = min(count, sizeof(buf) - 1);
147 if (copy_from_user(buf, user_buf, len))
04236066 148 return -EFAULT;
15340694
FF		 149
150 buf[len] = '\0';
151 if (strict_strtoul(buf, 0, &mask))
152 return -EINVAL;
153
154 common->rx_chainmask = mask;
155 sc->sc_ah->caps.rx_chainmask = mask;
156 return count;
157}
158
159static const struct file_operations fops_rx_chainmask = {
160 .read = read_file_rx_chainmask,
161 .write = write_file_rx_chainmask,
162 .open = ath9k_debugfs_open,
6038f373
AB		 163 .owner = THIS_MODULE,
164 .llseek = default_llseek,
15340694
FF		 165};
166
167
2a163c6d
S		 168static ssize_t read_file_dma(struct file *file, char __user *user_buf,
169 size_t count, loff_t *ppos)
170{
171 struct ath_softc *sc = file->private_data;
cbe61d8a 172 struct ath_hw *ah = sc->sc_ah;
991a0987
PR		 173 char *buf;
174 int retval;
2a163c6d
S		 175 unsigned int len = 0;
176 u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
177 int i, qcuOffset = 0, dcuOffset = 0;
178 u32 *qcuBase = &val[0], *dcuBase = &val[4];
179
991a0987
PR		 180 buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
181 if (!buf)
04236066 182 return -ENOMEM;
991a0987 183
7cf4a2e7
S		 184 ath9k_ps_wakeup(sc);
185
475a6e4d 186 REG_WRITE_D(ah, AR_MACMISC,
2a163c6d
S		 187 ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
188 (AR_MACMISC_MISC_OBS_BUS_1 <<
189 AR_MACMISC_MISC_OBS_BUS_MSB_S)));
190
991a0987 191 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 192 "Raw DMA Debug values:\n");
193
194 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
195 if (i % 4 == 0)
991a0987 196 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
2a163c6d 197
475a6e4d 198 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
991a0987 199 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
2a163c6d
S		 200 i, val[i]);
201 }
202
991a0987
PR		 203 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
204 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 205 "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
206
207 for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
208 if (i == 8) {
209 qcuOffset = 0;
210 qcuBase++;
211 }
212
213 if (i == 6) {
214 dcuOffset = 0;
215 dcuBase++;
216 }
217
991a0987 218 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 219 "%2d %2x %1x %2x %2x\n",
220 i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
221 (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
222 val[2] & (0x7 << (i * 3)) >> (i * 3),
223 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
224 }
225
991a0987 226 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
2a163c6d 227
991a0987 228 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 229 "qcu_stitch state: %2x qcu_fetch state: %2x\n",
230 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
991a0987 231 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 232 "qcu_complete state: %2x dcu_complete state: %2x\n",
233 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
991a0987 234 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 235 "dcu_arb state: %2x dcu_fp state: %2x\n",
236 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
991a0987 237 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 238 "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
239 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
991a0987 240 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 241 "txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
242 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
991a0987 243 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 244 "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
245 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
246
60ece404 247 len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
475a6e4d 248 REG_READ_D(ah, AR_OBS_BUS_1));
991a0987 249 len += snprintf(buf + len, DMA_BUF_LEN - len,
60ece404 250 "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
2a163c6d 251
7cf4a2e7
S		 252 ath9k_ps_restore(sc);
253
2b87f3aa
DC		 254 if (len > DMA_BUF_LEN)
255 len = DMA_BUF_LEN;
256
991a0987
PR		 257 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
258 kfree(buf);
259 return retval;
2a163c6d
S		 260}
261
262static const struct file_operations fops_dma = {
263 .read = read_file_dma,
264 .open = ath9k_debugfs_open,
6038f373
AB		 265 .owner = THIS_MODULE,
266 .llseek = default_llseek,
2a163c6d
S		 267};
268
817e11de
S		 269
270void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
271{
272 if (status)
17d7904d 273 sc->debug.stats.istats.total++;
a9616f41
LR		 274 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
275 if (status & ATH9K_INT_RXLP)
276 sc->debug.stats.istats.rxlp++;
277 if (status & ATH9K_INT_RXHP)
278 sc->debug.stats.istats.rxhp++;
08578b8f
LR		 279 if (status & ATH9K_INT_BB_WATCHDOG)
280 sc->debug.stats.istats.bb_watchdog++;
a9616f41
LR		 281 } else {
282 if (status & ATH9K_INT_RX)
283 sc->debug.stats.istats.rxok++;
284 }
817e11de 285 if (status & ATH9K_INT_RXEOL)
17d7904d 286 sc->debug.stats.istats.rxeol++;
817e11de 287 if (status & ATH9K_INT_RXORN)
17d7904d 288 sc->debug.stats.istats.rxorn++;
817e11de 289 if (status & ATH9K_INT_TX)
17d7904d 290 sc->debug.stats.istats.txok++;
817e11de 291 if (status & ATH9K_INT_TXURN)
17d7904d 292 sc->debug.stats.istats.txurn++;
817e11de 293 if (status & ATH9K_INT_MIB)
17d7904d 294 sc->debug.stats.istats.mib++;
817e11de 295 if (status & ATH9K_INT_RXPHY)
17d7904d 296 sc->debug.stats.istats.rxphyerr++;
817e11de 297 if (status & ATH9K_INT_RXKCM)
17d7904d 298 sc->debug.stats.istats.rx_keycache_miss++;
817e11de 299 if (status & ATH9K_INT_SWBA)
17d7904d 300 sc->debug.stats.istats.swba++;
817e11de 301 if (status & ATH9K_INT_BMISS)
17d7904d 302 sc->debug.stats.istats.bmiss++;
817e11de 303 if (status & ATH9K_INT_BNR)
17d7904d 304 sc->debug.stats.istats.bnr++;
817e11de 305 if (status & ATH9K_INT_CST)
17d7904d 306 sc->debug.stats.istats.cst++;
817e11de 307 if (status & ATH9K_INT_GTT)
17d7904d 308 sc->debug.stats.istats.gtt++;
817e11de 309 if (status & ATH9K_INT_TIM)
17d7904d 310 sc->debug.stats.istats.tim++;
817e11de 311 if (status & ATH9K_INT_CABEND)
17d7904d 312 sc->debug.stats.istats.cabend++;
817e11de 313 if (status & ATH9K_INT_DTIMSYNC)
17d7904d 314 sc->debug.stats.istats.dtimsync++;
817e11de 315 if (status & ATH9K_INT_DTIM)
17d7904d 316 sc->debug.stats.istats.dtim++;
817e11de
S		 317}
318
319static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
320 size_t count, loff_t *ppos)
321{
322 struct ath_softc *sc = file->private_data;
323 char buf[512];
324 unsigned int len = 0;
325
a9616f41
LR		 326 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
327 len += snprintf(buf + len, sizeof(buf) - len,
328 "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp);
329 len += snprintf(buf + len, sizeof(buf) - len,
330 "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp);
08578b8f
LR		 331 len += snprintf(buf + len, sizeof(buf) - len,
332 "%8s: %10u\n", "WATCHDOG",
333 sc->debug.stats.istats.bb_watchdog);
a9616f41
LR		 334 } else {
335 len += snprintf(buf + len, sizeof(buf) - len,
336 "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
337 }
817e11de 338 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 339 "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol);
817e11de 340 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 341 "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn);
817e11de 342 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 343 "%8s: %10u\n", "TX", sc->debug.stats.istats.txok);
817e11de 344 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 345 "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn);
817e11de 346 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 347 "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib);
817e11de 348 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 349 "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr);
817e11de 350 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 351 "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss);
817e11de 352 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 353 "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba);
817e11de 354 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 355 "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss);
817e11de 356 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 357 "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr);
817e11de 358 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 359 "%8s: %10u\n", "CST", sc->debug.stats.istats.cst);
817e11de 360 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 361 "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt);
817e11de 362 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 363 "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim);
817e11de 364 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 365 "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend);
817e11de 366 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 367 "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync);
817e11de 368 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 369 "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
817e11de 370 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 371 "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
817e11de 372
2b87f3aa
DC		 373 if (len > sizeof(buf))
374 len = sizeof(buf);
375
817e11de
S		 376 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
377}
378
379static const struct file_operations fops_interrupt = {
380 .read = read_file_interrupt,
381 .open = ath9k_debugfs_open,
6038f373
AB		 382 .owner = THIS_MODULE,
383 .llseek = default_llseek,
817e11de
S		 384};
385
545750d3 386void ath_debug_stat_rc(struct ath_softc *sc, int final_rate)
7a7dec65 387{
bedf087a 388 struct ath_rc_stats *stats;
7a7dec65 389
545750d3 390 stats = &sc->debug.stats.rcstats[final_rate];
bedf087a 391 stats->success++;
7a7dec65
S		 392}
393
029bc432 394void ath_debug_stat_retries(struct ath_softc *sc, int rix,
9e712790 395 int xretries, int retries, u8 per)
029bc432 396{
bedf087a 397 struct ath_rc_stats *stats = &sc->debug.stats.rcstats[rix];
029bc432 398
bedf087a
JH		 399 stats->xretries += xretries;
400 stats->retries += retries;
401 stats->per = per;
029bc432
S		 402}
403
bedf087a
JH		 404static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
405 size_t count, loff_t *ppos)
7a7dec65
S		 406{
407 struct ath_softc *sc = file->private_data;
bedf087a
JH		 408 char *buf;
409 unsigned int len = 0, max;
7a7dec65 410 int i = 0;
bedf087a 411 ssize_t retval;
7a7dec65 412
bedf087a
JH		 413 if (sc->cur_rate_table == NULL)
414 return 0;
7a7dec65 415
2b87f3aa
DC		 416 max = 80 + sc->cur_rate_table->rate_cnt * 1024 + 1;
417 buf = kmalloc(max, GFP_KERNEL);
bedf087a 418 if (buf == NULL)
04236066 419 return -ENOMEM;
7a7dec65 420
c755ad34
LR		 421 len += sprintf(buf, "%6s %6s %6s "
422 "%10s %10s %10s %10s\n",
423 "HT", "MCS", "Rate",
424 "Success", "Retries", "XRetries", "PER");
7a7dec65
S		 425
426 for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) {
bedf087a
JH		 427 u32 ratekbps = sc->cur_rate_table->info[i].ratekbps;
428 struct ath_rc_stats *stats = &sc->debug.stats.rcstats[i];
c755ad34
LR		 429 char mcs[5];
430 char htmode[5];
431 int used_mcs = 0, used_htmode = 0;
432
433 if (WLAN_RC_PHY_HT(sc->cur_rate_table->info[i].phy)) {
434 used_mcs = snprintf(mcs, 5, "%d",
435 sc->cur_rate_table->info[i].ratecode);
436
437 if (WLAN_RC_PHY_40(sc->cur_rate_table->info[i].phy))
438 used_htmode = snprintf(htmode, 5, "HT40");
439 else if (WLAN_RC_PHY_20(sc->cur_rate_table->info[i].phy))
440 used_htmode = snprintf(htmode, 5, "HT20");
441 else
442 used_htmode = snprintf(htmode, 5, "????");
443 }
444
445 mcs[used_mcs] = '\0';
446 htmode[used_htmode] = '\0';
bedf087a
JH		 447
448 len += snprintf(buf + len, max - len,
c755ad34
LR		 449 "%6s %6s %3u.%d: "
450 "%10u %10u %10u %10u\n",
451 htmode,
452 mcs,
453 ratekbps / 1000,
454 (ratekbps % 1000) / 100,
455 stats->success,
456 stats->retries,
457 stats->xretries,
bedf087a 458 stats->per);
7a7dec65
S		 459 }
460
2b87f3aa
DC		 461 if (len > max)
462 len = max;
463
bedf087a
JH		 464 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
465 kfree(buf);
466 return retval;
7a7dec65
S		 467}
468
469static const struct file_operations fops_rcstat = {
470 .read = read_file_rcstat,
471 .open = ath9k_debugfs_open,
6038f373
AB		 472 .owner = THIS_MODULE,
473 .llseek = default_llseek,
7a7dec65 474};
27abe060 475
39d89cd3
JM		 476static const char * ath_wiphy_state_str(enum ath_wiphy_state state)
477{
478 switch (state) {
479 case ATH_WIPHY_INACTIVE:
480 return "INACTIVE";
481 case ATH_WIPHY_ACTIVE:
482 return "ACTIVE";
483 case ATH_WIPHY_PAUSING:
484 return "PAUSING";
485 case ATH_WIPHY_PAUSED:
486 return "PAUSED";
487 case ATH_WIPHY_SCAN:
488 return "SCAN";
489 }
490 return "?";
491}
492
493static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
494 size_t count, loff_t *ppos)
495{
496 struct ath_softc *sc = file->private_data;
497 char buf[512];
498 unsigned int len = 0;
499 int i;
500 u8 addr[ETH_ALEN];
501
502 len += snprintf(buf + len, sizeof(buf) - len,
503 "primary: %s (%s chan=%d ht=%d)\n",
504 wiphy_name(sc->pri_wiphy->hw->wiphy),
505 ath_wiphy_state_str(sc->pri_wiphy->state),
506 sc->pri_wiphy->chan_idx, sc->pri_wiphy->chan_is_ht);
507 for (i = 0; i < sc->num_sec_wiphy; i++) {
508 struct ath_wiphy *aphy = sc->sec_wiphy[i];
509 if (aphy == NULL)
510 continue;
511 len += snprintf(buf + len, sizeof(buf) - len,
512 "secondary: %s (%s chan=%d ht=%d)\n",
513 wiphy_name(aphy->hw->wiphy),
514 ath_wiphy_state_str(aphy->state),
515 aphy->chan_idx, aphy->chan_is_ht);
516 }
517
475a6e4d
LR		 518 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
519 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
39d89cd3
JM		 520 len += snprintf(buf + len, sizeof(buf) - len,
521 "addr: %pM\n", addr);
475a6e4d
LR		 522 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr);
523 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
39d89cd3
JM		 524 len += snprintf(buf + len, sizeof(buf) - len,
525 "addrmask: %pM\n", addr);
526
2b87f3aa
DC		 527 if (len > sizeof(buf))
528 len = sizeof(buf);
529
39d89cd3
JM		 530 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
531}
532
533static struct ath_wiphy * get_wiphy(struct ath_softc *sc, const char *name)
534{
535 int i;
536 if (strcmp(name, wiphy_name(sc->pri_wiphy->hw->wiphy)) == 0)
537 return sc->pri_wiphy;
538 for (i = 0; i < sc->num_sec_wiphy; i++) {
539 struct ath_wiphy *aphy = sc->sec_wiphy[i];
540 if (aphy && strcmp(name, wiphy_name(aphy->hw->wiphy)) == 0)
541 return aphy;
542 }
543 return NULL;
544}
545
546static int del_wiphy(struct ath_softc *sc, const char *name)
547{
548 struct ath_wiphy *aphy = get_wiphy(sc, name);
549 if (!aphy)
550 return -ENOENT;
551 return ath9k_wiphy_del(aphy);
552}
553
554static int pause_wiphy(struct ath_softc *sc, const char *name)
555{
556 struct ath_wiphy *aphy = get_wiphy(sc, name);
557 if (!aphy)
558 return -ENOENT;
559 return ath9k_wiphy_pause(aphy);
560}
561
562static int unpause_wiphy(struct ath_softc *sc, const char *name)
563{
564 struct ath_wiphy *aphy = get_wiphy(sc, name);
565 if (!aphy)
566 return -ENOENT;
567 return ath9k_wiphy_unpause(aphy);
568}
569
570static int select_wiphy(struct ath_softc *sc, const char *name)
571{
572 struct ath_wiphy *aphy = get_wiphy(sc, name);
573 if (!aphy)
574 return -ENOENT;
575 return ath9k_wiphy_select(aphy);
576}
577
578static int schedule_wiphy(struct ath_softc *sc, const char *msec)
579{
580 ath9k_wiphy_set_scheduler(sc, simple_strtoul(msec, NULL, 0));
581 return 0;
582}
583
584static ssize_t write_file_wiphy(struct file *file, const char __user *user_buf,
585 size_t count, loff_t *ppos)
586{
587 struct ath_softc *sc = file->private_data;
588 char buf[50];
589 size_t len;
590
591 len = min(count, sizeof(buf) - 1);
592 if (copy_from_user(buf, user_buf, len))
593 return -EFAULT;
594 buf[len] = '\0';
595 if (len > 0 && buf[len - 1] == '\n')
596 buf[len - 1] = '\0';
597
598 if (strncmp(buf, "add", 3) == 0) {
599 int res = ath9k_wiphy_add(sc);
600 if (res < 0)
601 return res;
602 } else if (strncmp(buf, "del=", 4) == 0) {
603 int res = del_wiphy(sc, buf + 4);
604 if (res < 0)
605 return res;
606 } else if (strncmp(buf, "pause=", 6) == 0) {
607 int res = pause_wiphy(sc, buf + 6);
608 if (res < 0)
609 return res;
610 } else if (strncmp(buf, "unpause=", 8) == 0) {
611 int res = unpause_wiphy(sc, buf + 8);
612 if (res < 0)
613 return res;
614 } else if (strncmp(buf, "select=", 7) == 0) {
615 int res = select_wiphy(sc, buf + 7);
616 if (res < 0)
617 return res;
618 } else if (strncmp(buf, "schedule=", 9) == 0) {
619 int res = schedule_wiphy(sc, buf + 9);
620 if (res < 0)
621 return res;
622 } else
623 return -EOPNOTSUPP;
624
625 return count;
626}
627
628static const struct file_operations fops_wiphy = {
629 .read = read_file_wiphy,
630 .write = write_file_wiphy,
631 .open = ath9k_debugfs_open,
6038f373
AB		 632 .owner = THIS_MODULE,
633 .llseek = default_llseek,
39d89cd3
JM		 634};
635
fec247c0
S		 636#define PR(str, elem) \
637 do { \
638 len += snprintf(buf + len, size - len, \
639 "%s%13u%11u%10u%10u\n", str, \
1d2231e2
FF		 640 sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BE]].elem, \
641 sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BK]].elem, \
642 sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VI]].elem, \
643 sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VO]].elem); \
fec247c0
S		 644} while(0)
645
646static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
647 size_t count, loff_t *ppos)
648{
649 struct ath_softc *sc = file->private_data;
650 char *buf;
651 unsigned int len = 0, size = 2048;
652 ssize_t retval = 0;
653
654 buf = kzalloc(size, GFP_KERNEL);
655 if (buf == NULL)
04236066 656 return -ENOMEM;
fec247c0
S		 657
658 len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
659
660 PR("MPDUs Queued: ", queued);
661 PR("MPDUs Completed: ", completed);
662 PR("Aggregates: ", a_aggr);
663 PR("AMPDUs Queued: ", a_queued);
664 PR("AMPDUs Completed:", a_completed);
665 PR("AMPDUs Retried: ", a_retries);
666 PR("AMPDUs XRetried: ", a_xretries);
667 PR("FIFO Underrun: ", fifo_underrun);
668 PR("TXOP Exceeded: ", xtxop);
669 PR("TXTIMER Expiry: ", timer_exp);
670 PR("DESC CFG Error: ", desc_cfg_err);
671 PR("DATA Underrun: ", data_underrun);
672 PR("DELIM Underrun: ", delim_underrun);
673
2b87f3aa
DC		 674 if (len > size)
675 len = size;
676
fec247c0
S		 677 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
678 kfree(buf);
679
680 return retval;
681}
682
683void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
db1a052b 684 struct ath_buf *bf, struct ath_tx_status *ts)
fec247c0 685{
fec247c0
S		 686 if (bf_isampdu(bf)) {
687 if (bf_isxretried(bf))
688 TX_STAT_INC(txq->axq_qnum, a_xretries);
689 else
690 TX_STAT_INC(txq->axq_qnum, a_completed);
691 } else {
692 TX_STAT_INC(txq->axq_qnum, completed);
693 }
694
db1a052b 695 if (ts->ts_status & ATH9K_TXERR_FIFO)
fec247c0 696 TX_STAT_INC(txq->axq_qnum, fifo_underrun);
db1a052b 697 if (ts->ts_status & ATH9K_TXERR_XTXOP)
fec247c0 698 TX_STAT_INC(txq->axq_qnum, xtxop);
db1a052b 699 if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
fec247c0 700 TX_STAT_INC(txq->axq_qnum, timer_exp);
db1a052b 701 if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
fec247c0 702 TX_STAT_INC(txq->axq_qnum, desc_cfg_err);
db1a052b 703 if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
fec247c0 704 TX_STAT_INC(txq->axq_qnum, data_underrun);
db1a052b 705 if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
fec247c0
S		 706 TX_STAT_INC(txq->axq_qnum, delim_underrun);
707}
708
709static const struct file_operations fops_xmit = {
710 .read = read_file_xmit,
711 .open = ath9k_debugfs_open,
6038f373
AB		 712 .owner = THIS_MODULE,
713 .llseek = default_llseek,
fec247c0 714};
39d89cd3 715
1395d3f0
S		 716static ssize_t read_file_recv(struct file *file, char __user *user_buf,
717 size_t count, loff_t *ppos)
718{
719#define PHY_ERR(s, p) \
720 len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \
721 sc->debug.stats.rxstats.phy_err_stats[p]);
722
723 struct ath_softc *sc = file->private_data;
724 char *buf;
725 unsigned int len = 0, size = 1152;
726 ssize_t retval = 0;
727
728 buf = kzalloc(size, GFP_KERNEL);
729 if (buf == NULL)
04236066 730 return -ENOMEM;
1395d3f0
S		 731
732 len += snprintf(buf + len, size - len,
733 "%18s : %10u\n", "CRC ERR",
734 sc->debug.stats.rxstats.crc_err);
735 len += snprintf(buf + len, size - len,
736 "%18s : %10u\n", "DECRYPT CRC ERR",
737 sc->debug.stats.rxstats.decrypt_crc_err);
738 len += snprintf(buf + len, size - len,
739 "%18s : %10u\n", "PHY ERR",
740 sc->debug.stats.rxstats.phy_err);
741 len += snprintf(buf + len, size - len,
742 "%18s : %10u\n", "MIC ERR",
743 sc->debug.stats.rxstats.mic_err);
744 len += snprintf(buf + len, size - len,
745 "%18s : %10u\n", "PRE-DELIM CRC ERR",
746 sc->debug.stats.rxstats.pre_delim_crc_err);
747 len += snprintf(buf + len, size - len,
748 "%18s : %10u\n", "POST-DELIM CRC ERR",
749 sc->debug.stats.rxstats.post_delim_crc_err);
750 len += snprintf(buf + len, size - len,
751 "%18s : %10u\n", "DECRYPT BUSY ERR",
752 sc->debug.stats.rxstats.decrypt_busy_err);
753
754 PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);
755 PHY_ERR("TIMING", ATH9K_PHYERR_TIMING);
756 PHY_ERR("PARITY", ATH9K_PHYERR_PARITY);
757 PHY_ERR("RATE", ATH9K_PHYERR_RATE);
758 PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH);
759 PHY_ERR("RADAR", ATH9K_PHYERR_RADAR);
760 PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE);
761 PHY_ERR("TOR", ATH9K_PHYERR_TOR);
762 PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING);
763 PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
764 PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
765 PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
766 PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP);
767 PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE);
768 PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART);
769 PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT);
770 PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING);
771 PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC);
772 PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
773 PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE);
774 PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART);
775 PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
776 PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP);
777 PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR);
778 PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
779 PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL);
780
2b87f3aa
DC		 781 if (len > size)
782 len = size;
783
1395d3f0
S		 784 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
785 kfree(buf);
786
787 return retval;
788
789#undef PHY_ERR
790}
791
8e6f5aa2 792void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
1395d3f0
S		 793{
794#define RX_STAT_INC(c) sc->debug.stats.rxstats.c++
795#define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
796
1395d3f0
S		 797 u32 phyerr;
798
8e6f5aa2 799 if (rs->rs_status & ATH9K_RXERR_CRC)
1395d3f0 800 RX_STAT_INC(crc_err);
8e6f5aa2 801 if (rs->rs_status & ATH9K_RXERR_DECRYPT)
1395d3f0 802 RX_STAT_INC(decrypt_crc_err);
8e6f5aa2 803 if (rs->rs_status & ATH9K_RXERR_MIC)
1395d3f0 804 RX_STAT_INC(mic_err);
8e6f5aa2 805 if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
1395d3f0 806 RX_STAT_INC(pre_delim_crc_err);
8e6f5aa2 807 if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
1395d3f0 808 RX_STAT_INC(post_delim_crc_err);
8e6f5aa2 809 if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
1395d3f0
S		 810 RX_STAT_INC(decrypt_busy_err);
811
8e6f5aa2 812 if (rs->rs_status & ATH9K_RXERR_PHY) {
1395d3f0 813 RX_STAT_INC(phy_err);
8e6f5aa2 814 phyerr = rs->rs_phyerr & 0x24;
1395d3f0
S		 815 RX_PHY_ERR_INC(phyerr);
816 }
817
818#undef RX_STAT_INC
819#undef RX_PHY_ERR_INC
820}
821
822static const struct file_operations fops_recv = {
823 .read = read_file_recv,
824 .open = ath9k_debugfs_open,
6038f373
AB		 825 .owner = THIS_MODULE,
826 .llseek = default_llseek,
1395d3f0
S		 827};
828
9bff0bc4
FF		 829static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
830 size_t count, loff_t *ppos)
831{
832 struct ath_softc *sc = file->private_data;
833 char buf[32];
834 unsigned int len;
835
2b87f3aa 836 len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
9bff0bc4
FF		 837 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
838}
839
840static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
841 size_t count, loff_t *ppos)
842{
843 struct ath_softc *sc = file->private_data;
844 unsigned long regidx;
845 char buf[32];
846 ssize_t len;
847
848 len = min(count, sizeof(buf) - 1);
849 if (copy_from_user(buf, user_buf, len))
04236066 850 return -EFAULT;
9bff0bc4
FF		 851
852 buf[len] = '\0';
853 if (strict_strtoul(buf, 0, &regidx))
854 return -EINVAL;
855
856 sc->debug.regidx = regidx;
857 return count;
858}
859
860static const struct file_operations fops_regidx = {
861 .read = read_file_regidx,
862 .write = write_file_regidx,
863 .open = ath9k_debugfs_open,
6038f373
AB		 864 .owner = THIS_MODULE,
865 .llseek = default_llseek,
9bff0bc4
FF		 866};
867
868static ssize_t read_file_regval(struct file *file, char __user *user_buf,
869 size_t count, loff_t *ppos)
870{
871 struct ath_softc *sc = file->private_data;
872 struct ath_hw *ah = sc->sc_ah;
873 char buf[32];
874 unsigned int len;
875 u32 regval;
876
877 regval = REG_READ_D(ah, sc->debug.regidx);
2b87f3aa 878 len = sprintf(buf, "0x%08x\n", regval);
9bff0bc4
FF		 879 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
880}
881
882static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
883 size_t count, loff_t *ppos)
884{
885 struct ath_softc *sc = file->private_data;
886 struct ath_hw *ah = sc->sc_ah;
887 unsigned long regval;
888 char buf[32];
889 ssize_t len;
890
891 len = min(count, sizeof(buf) - 1);
892 if (copy_from_user(buf, user_buf, len))
04236066 893 return -EFAULT;
9bff0bc4
FF		 894
895 buf[len] = '\0';
896 if (strict_strtoul(buf, 0, &regval))
897 return -EINVAL;
898
899 REG_WRITE_D(ah, sc->debug.regidx, regval);
900 return count;
901}
902
903static const struct file_operations fops_regval = {
904 .read = read_file_regval,
905 .write = write_file_regval,
906 .open = ath9k_debugfs_open,
6038f373
AB		 907 .owner = THIS_MODULE,
908 .llseek = default_llseek,
9bff0bc4
FF		 909};
910
4d6b228d 911int ath9k_init_debug(struct ath_hw *ah)
88b126af 912{
bc974f4a
LR		 913 struct ath_common *common = ath9k_hw_common(ah);
914 struct ath_softc *sc = (struct ath_softc *) common->priv;
4d6b228d 915
7dd58748
S		 916 if (!ath9k_debugfs_root)
917 return -ENOENT;
918
17d7904d 919 sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
19d8bc22 920 ath9k_debugfs_root);
17d7904d 921 if (!sc->debug.debugfs_phy)
c8a72c00 922 return -ENOMEM;
826d2680 923
a830df07 924#ifdef CONFIG_ATH_DEBUG
c8a72c00
FF		 925 if (!debugfs_create_file("debug", S_IRUSR | S_IWUSR,
926 sc->debug.debugfs_phy, sc, &fops_debug))
2493928e 927 goto err;
a830df07 928#endif
2493928e 929
c8a72c00
FF		 930 if (!debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy,
931 sc, &fops_dma))
2a163c6d
S		 932 goto err;
933
c8a72c00
FF		 934 if (!debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy,
935 sc, &fops_interrupt))
817e11de
S		 936 goto err;
937
c8a72c00
FF		 938 if (!debugfs_create_file("rcstat", S_IRUSR, sc->debug.debugfs_phy,
939 sc, &fops_rcstat))
7a7dec65
S		 940 goto err;
941
c8a72c00
FF		 942 if (!debugfs_create_file("wiphy", S_IRUSR | S_IWUSR,
943 sc->debug.debugfs_phy, sc, &fops_wiphy))
39d89cd3
JM		 944 goto err;
945
c8a72c00
FF		 946 if (!debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy,
947 sc, &fops_xmit))
2a163c6d
S		 948 goto err;
949
c8a72c00
FF		 950 if (!debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy,
951 sc, &fops_recv))
817e11de
S		 952 goto err;
953
15340694
FF		 954 if (!debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
955 sc->debug.debugfs_phy, sc, &fops_rx_chainmask))
7a7dec65
S		 956 goto err;
957
15340694
FF		 958 if (!debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
959 sc->debug.debugfs_phy, sc, &fops_tx_chainmask))
39d89cd3
JM		 960 goto err;
961
9bff0bc4
FF		 962 if (!debugfs_create_file("regidx", S_IRUSR | S_IWUSR,
963 sc->debug.debugfs_phy, sc, &fops_regidx))
fec247c0
S		 964 goto err;
965
9bff0bc4
FF		 966 if (!debugfs_create_file("regval", S_IRUSR | S_IWUSR,
967 sc->debug.debugfs_phy, sc, &fops_regval))
1395d3f0
S		 968 goto err;
969
41f3e54d
FF		 970 if (!debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
971 sc->debug.debugfs_phy, &ah->config.cwm_ignore_extcca))
972 goto err;
973
9bff0bc4 974 sc->debug.regidx = 0;
826d2680
S		 975 return 0;
976err:
4d6b228d 977 ath9k_exit_debug(ah);
826d2680
S		 978 return -ENOMEM;
979}
980
4d6b228d 981void ath9k_exit_debug(struct ath_hw *ah)
826d2680 982{
bc974f4a
LR		 983 struct ath_common *common = ath9k_hw_common(ah);
984 struct ath_softc *sc = (struct ath_softc *) common->priv;
4d6b228d 985
c8a72c00 986 debugfs_remove_recursive(sc->debug.debugfs_phy);
19d8bc22
GJ		 987}
988
989int ath9k_debug_create_root(void)
990{
991 ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
992 if (!ath9k_debugfs_root)
993 return -ENOENT;
994
995 return 0;
996}
997
998void ath9k_debug_remove_root(void)
999{
1000 debugfs_remove(ath9k_debugfs_root);
1001 ath9k_debugfs_root = NULL;
88b126af 1002}
Clone of davem's net-next-2.6 tree