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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[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,
74 .owner = THIS_MODULE
75};
76
a830df07
FF		 77#endif
78
991a0987
PR		 79#define DMA_BUF_LEN 1024
80
15340694
FF		 81static ssize_t read_file_tx_chainmask(struct file *file, char __user *user_buf,
82 size_t count, loff_t *ppos)
83{
84 struct ath_softc *sc = file->private_data;
85 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
86 char buf[32];
87 unsigned int len;
88
2b87f3aa 89 len = sprintf(buf, "0x%08x\n", common->tx_chainmask);
15340694
FF		 90 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
91}
92
93static ssize_t write_file_tx_chainmask(struct file *file, const char __user *user_buf,
94 size_t count, loff_t *ppos)
95{
96 struct ath_softc *sc = file->private_data;
97 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
98 unsigned long mask;
99 char buf[32];
100 ssize_t len;
101
102 len = min(count, sizeof(buf) - 1);
103 if (copy_from_user(buf, user_buf, len))
04236066 104 return -EFAULT;
15340694
FF		 105
106 buf[len] = '\0';
107 if (strict_strtoul(buf, 0, &mask))
108 return -EINVAL;
109
110 common->tx_chainmask = mask;
111 sc->sc_ah->caps.tx_chainmask = mask;
112 return count;
113}
114
115static const struct file_operations fops_tx_chainmask = {
116 .read = read_file_tx_chainmask,
117 .write = write_file_tx_chainmask,
118 .open = ath9k_debugfs_open,
119 .owner = THIS_MODULE
120};
121
122
123static 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
2b87f3aa 131 len = sprintf(buf, "0x%08x\n", common->rx_chainmask);
15340694
FF		 132 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
133}
134
135static 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))
04236066 146 return -EFAULT;
15340694
FF		 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
157static 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};
163
164
2a163c6d
S		 165static ssize_t read_file_dma(struct file *file, char __user *user_buf,
166 size_t count, loff_t *ppos)
167{
168 struct ath_softc *sc = file->private_data;
cbe61d8a 169 struct ath_hw *ah = sc->sc_ah;
991a0987
PR		 170 char *buf;
171 int retval;
2a163c6d
S		 172 unsigned int len = 0;
173 u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
174 int i, qcuOffset = 0, dcuOffset = 0;
175 u32 *qcuBase = &val[0], *dcuBase = &val[4];
176
991a0987
PR		 177 buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
178 if (!buf)
04236066 179 return -ENOMEM;
991a0987 180
7cf4a2e7
S		 181 ath9k_ps_wakeup(sc);
182
475a6e4d 183 REG_WRITE_D(ah, AR_MACMISC,
2a163c6d
S		 184 ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
185 (AR_MACMISC_MISC_OBS_BUS_1 <<
186 AR_MACMISC_MISC_OBS_BUS_MSB_S)));
187
991a0987 188 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 189 "Raw DMA Debug values:\n");
190
191 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
192 if (i % 4 == 0)
991a0987 193 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
2a163c6d 194
475a6e4d 195 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
991a0987 196 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
2a163c6d
S		 197 i, val[i]);
198 }
199
991a0987
PR		 200 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
201 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 202 "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
203
204 for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
205 if (i == 8) {
206 qcuOffset = 0;
207 qcuBase++;
208 }
209
210 if (i == 6) {
211 dcuOffset = 0;
212 dcuBase++;
213 }
214
991a0987 215 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 216 "%2d %2x %1x %2x %2x\n",
217 i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
218 (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
219 val[2] & (0x7 << (i * 3)) >> (i * 3),
220 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
221 }
222
991a0987 223 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
2a163c6d 224
991a0987 225 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 226 "qcu_stitch state: %2x qcu_fetch state: %2x\n",
227 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
991a0987 228 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 229 "qcu_complete state: %2x dcu_complete state: %2x\n",
230 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
991a0987 231 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 232 "dcu_arb state: %2x dcu_fp state: %2x\n",
233 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
991a0987 234 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 235 "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
236 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
991a0987 237 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 238 "txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
239 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
991a0987 240 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 241 "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
242 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
243
60ece404 244 len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
475a6e4d 245 REG_READ_D(ah, AR_OBS_BUS_1));
991a0987 246 len += snprintf(buf + len, DMA_BUF_LEN - len,
60ece404 247 "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
2a163c6d 248
7cf4a2e7
S		 249 ath9k_ps_restore(sc);
250
2b87f3aa
DC		 251 if (len > DMA_BUF_LEN)
252 len = DMA_BUF_LEN;
253
991a0987
PR		 254 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
255 kfree(buf);
256 return retval;
2a163c6d
S		 257}
258
259static const struct file_operations fops_dma = {
260 .read = read_file_dma,
261 .open = ath9k_debugfs_open,
262 .owner = THIS_MODULE
263};
264
817e11de
S		 265
266void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
267{
268 if (status)
17d7904d 269 sc->debug.stats.istats.total++;
a9616f41
LR		 270 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
271 if (status & ATH9K_INT_RXLP)
272 sc->debug.stats.istats.rxlp++;
273 if (status & ATH9K_INT_RXHP)
274 sc->debug.stats.istats.rxhp++;
08578b8f
LR		 275 if (status & ATH9K_INT_BB_WATCHDOG)
276 sc->debug.stats.istats.bb_watchdog++;
a9616f41
LR		 277 } else {
278 if (status & ATH9K_INT_RX)
279 sc->debug.stats.istats.rxok++;
280 }
817e11de 281 if (status & ATH9K_INT_RXEOL)
17d7904d 282 sc->debug.stats.istats.rxeol++;
817e11de 283 if (status & ATH9K_INT_RXORN)
17d7904d 284 sc->debug.stats.istats.rxorn++;
817e11de 285 if (status & ATH9K_INT_TX)
17d7904d 286 sc->debug.stats.istats.txok++;
817e11de 287 if (status & ATH9K_INT_TXURN)
17d7904d 288 sc->debug.stats.istats.txurn++;
817e11de 289 if (status & ATH9K_INT_MIB)
17d7904d 290 sc->debug.stats.istats.mib++;
817e11de 291 if (status & ATH9K_INT_RXPHY)
17d7904d 292 sc->debug.stats.istats.rxphyerr++;
817e11de 293 if (status & ATH9K_INT_RXKCM)
17d7904d 294 sc->debug.stats.istats.rx_keycache_miss++;
817e11de 295 if (status & ATH9K_INT_SWBA)
17d7904d 296 sc->debug.stats.istats.swba++;
817e11de 297 if (status & ATH9K_INT_BMISS)
17d7904d 298 sc->debug.stats.istats.bmiss++;
817e11de 299 if (status & ATH9K_INT_BNR)
17d7904d 300 sc->debug.stats.istats.bnr++;
817e11de 301 if (status & ATH9K_INT_CST)
17d7904d 302 sc->debug.stats.istats.cst++;
817e11de 303 if (status & ATH9K_INT_GTT)
17d7904d 304 sc->debug.stats.istats.gtt++;
817e11de 305 if (status & ATH9K_INT_TIM)
17d7904d 306 sc->debug.stats.istats.tim++;
817e11de 307 if (status & ATH9K_INT_CABEND)
17d7904d 308 sc->debug.stats.istats.cabend++;
817e11de 309 if (status & ATH9K_INT_DTIMSYNC)
17d7904d 310 sc->debug.stats.istats.dtimsync++;
817e11de 311 if (status & ATH9K_INT_DTIM)
17d7904d 312 sc->debug.stats.istats.dtim++;
817e11de
S		 313}
314
315static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
316 size_t count, loff_t *ppos)
317{
318 struct ath_softc *sc = file->private_data;
319 char buf[512];
320 unsigned int len = 0;
321
a9616f41
LR		 322 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
323 len += snprintf(buf + len, sizeof(buf) - len,
324 "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp);
325 len += snprintf(buf + len, sizeof(buf) - len,
326 "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp);
08578b8f
LR		 327 len += snprintf(buf + len, sizeof(buf) - len,
328 "%8s: %10u\n", "WATCHDOG",
329 sc->debug.stats.istats.bb_watchdog);
a9616f41
LR		 330 } else {
331 len += snprintf(buf + len, sizeof(buf) - len,
332 "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
333 }
817e11de 334 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 335 "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol);
817e11de 336 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 337 "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn);
817e11de 338 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 339 "%8s: %10u\n", "TX", sc->debug.stats.istats.txok);
817e11de 340 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 341 "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn);
817e11de 342 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 343 "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib);
817e11de 344 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 345 "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr);
817e11de 346 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 347 "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss);
817e11de 348 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 349 "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba);
817e11de 350 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 351 "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss);
817e11de 352 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 353 "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr);
817e11de 354 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 355 "%8s: %10u\n", "CST", sc->debug.stats.istats.cst);
817e11de 356 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 357 "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt);
817e11de 358 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 359 "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim);
817e11de 360 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 361 "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend);
817e11de 362 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 363 "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync);
817e11de 364 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 365 "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
817e11de 366 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 367 "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
817e11de 368
2b87f3aa
DC		 369 if (len > sizeof(buf))
370 len = sizeof(buf);
371
817e11de
S		 372 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
373}
374
375static const struct file_operations fops_interrupt = {
376 .read = read_file_interrupt,
377 .open = ath9k_debugfs_open,
378 .owner = THIS_MODULE
379};
380
545750d3 381void ath_debug_stat_rc(struct ath_softc *sc, int final_rate)
7a7dec65 382{
bedf087a 383 struct ath_rc_stats *stats;
7a7dec65 384
545750d3 385 stats = &sc->debug.stats.rcstats[final_rate];
bedf087a 386 stats->success++;
7a7dec65
S		 387}
388
029bc432 389void ath_debug_stat_retries(struct ath_softc *sc, int rix,
9e712790 390 int xretries, int retries, u8 per)
029bc432 391{
bedf087a 392 struct ath_rc_stats *stats = &sc->debug.stats.rcstats[rix];
029bc432 393
bedf087a
JH		 394 stats->xretries += xretries;
395 stats->retries += retries;
396 stats->per = per;
029bc432
S		 397}
398
bedf087a
JH		 399static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
400 size_t count, loff_t *ppos)
7a7dec65
S		 401{
402 struct ath_softc *sc = file->private_data;
bedf087a
JH		 403 char *buf;
404 unsigned int len = 0, max;
7a7dec65 405 int i = 0;
bedf087a 406 ssize_t retval;
7a7dec65 407
bedf087a
JH		 408 if (sc->cur_rate_table == NULL)
409 return 0;
7a7dec65 410
2b87f3aa
DC		 411 max = 80 + sc->cur_rate_table->rate_cnt * 1024 + 1;
412 buf = kmalloc(max, GFP_KERNEL);
bedf087a 413 if (buf == NULL)
04236066 414 return -ENOMEM;
7a7dec65 415
c755ad34
LR		 416 len += sprintf(buf, "%6s %6s %6s "
417 "%10s %10s %10s %10s\n",
418 "HT", "MCS", "Rate",
419 "Success", "Retries", "XRetries", "PER");
7a7dec65
S		 420
421 for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) {
bedf087a
JH		 422 u32 ratekbps = sc->cur_rate_table->info[i].ratekbps;
423 struct ath_rc_stats *stats = &sc->debug.stats.rcstats[i];
c755ad34
LR		 424 char mcs[5];
425 char htmode[5];
426 int used_mcs = 0, used_htmode = 0;
427
428 if (WLAN_RC_PHY_HT(sc->cur_rate_table->info[i].phy)) {
429 used_mcs = snprintf(mcs, 5, "%d",
430 sc->cur_rate_table->info[i].ratecode);
431
432 if (WLAN_RC_PHY_40(sc->cur_rate_table->info[i].phy))
433 used_htmode = snprintf(htmode, 5, "HT40");
434 else if (WLAN_RC_PHY_20(sc->cur_rate_table->info[i].phy))
435 used_htmode = snprintf(htmode, 5, "HT20");
436 else
437 used_htmode = snprintf(htmode, 5, "????");
438 }
439
440 mcs[used_mcs] = '\0';
441 htmode[used_htmode] = '\0';
bedf087a
JH		 442
443 len += snprintf(buf + len, max - len,
c755ad34
LR		 444 "%6s %6s %3u.%d: "
445 "%10u %10u %10u %10u\n",
446 htmode,
447 mcs,
448 ratekbps / 1000,
449 (ratekbps % 1000) / 100,
450 stats->success,
451 stats->retries,
452 stats->xretries,
bedf087a 453 stats->per);
7a7dec65
S		 454 }
455
2b87f3aa
DC		 456 if (len > max)
457 len = max;
458
bedf087a
JH		 459 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
460 kfree(buf);
461 return retval;
7a7dec65
S		 462}
463
464static const struct file_operations fops_rcstat = {
465 .read = read_file_rcstat,
466 .open = ath9k_debugfs_open,
467 .owner = THIS_MODULE
468};
27abe060 469
39d89cd3
JM		 470static const char * ath_wiphy_state_str(enum ath_wiphy_state state)
471{
472 switch (state) {
473 case ATH_WIPHY_INACTIVE:
474 return "INACTIVE";
475 case ATH_WIPHY_ACTIVE:
476 return "ACTIVE";
477 case ATH_WIPHY_PAUSING:
478 return "PAUSING";
479 case ATH_WIPHY_PAUSED:
480 return "PAUSED";
481 case ATH_WIPHY_SCAN:
482 return "SCAN";
483 }
484 return "?";
485}
486
487static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
488 size_t count, loff_t *ppos)
489{
490 struct ath_softc *sc = file->private_data;
491 char buf[512];
492 unsigned int len = 0;
493 int i;
494 u8 addr[ETH_ALEN];
39057512 495 u32 tmp;
39d89cd3
JM		 496
497 len += snprintf(buf + len, sizeof(buf) - len,
498 "primary: %s (%s chan=%d ht=%d)\n",
499 wiphy_name(sc->pri_wiphy->hw->wiphy),
500 ath_wiphy_state_str(sc->pri_wiphy->state),
501 sc->pri_wiphy->chan_idx, sc->pri_wiphy->chan_is_ht);
39057512
BG		 502
503 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
504 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
505 len += snprintf(buf + len, sizeof(buf) - len,
506 "addr: %pM\n", addr);
507 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr);
508 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
509 len += snprintf(buf + len, sizeof(buf) - len,
510 "addrmask: %pM\n", addr);
511 tmp = ath9k_hw_getrxfilter(sc->sc_ah);
512 len += snprintf(buf + len, sizeof(buf) - len,
513 "rfilt: 0x%x", tmp);
514 if (tmp & ATH9K_RX_FILTER_UCAST)
515 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
516 if (tmp & ATH9K_RX_FILTER_MCAST)
517 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
518 if (tmp & ATH9K_RX_FILTER_BCAST)
519 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
520 if (tmp & ATH9K_RX_FILTER_CONTROL)
521 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
522 if (tmp & ATH9K_RX_FILTER_BEACON)
523 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
524 if (tmp & ATH9K_RX_FILTER_PROM)
525 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
526 if (tmp & ATH9K_RX_FILTER_PROBEREQ)
527 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
528 if (tmp & ATH9K_RX_FILTER_PHYERR)
529 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR");
530 if (tmp & ATH9K_RX_FILTER_MYBEACON)
531 len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON");
532 if (tmp & ATH9K_RX_FILTER_COMP_BAR)
533 len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
534 if (tmp & ATH9K_RX_FILTER_PSPOLL)
535 len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL");
536 if (tmp & ATH9K_RX_FILTER_PHYRADAR)
537 len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
538 if (tmp & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
539 len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL\n");
540 else
541 len += snprintf(buf + len, sizeof(buf) - len, "\n");
542
543 /* Put variable-length stuff down here, and check for overflows. */
39d89cd3
JM		 544 for (i = 0; i < sc->num_sec_wiphy; i++) {
545 struct ath_wiphy *aphy = sc->sec_wiphy[i];
546 if (aphy == NULL)
547 continue;
548 len += snprintf(buf + len, sizeof(buf) - len,
549 "secondary: %s (%s chan=%d ht=%d)\n",
550 wiphy_name(aphy->hw->wiphy),
551 ath_wiphy_state_str(aphy->state),
552 aphy->chan_idx, aphy->chan_is_ht);
553 }
2b87f3aa
DC		 554 if (len > sizeof(buf))
555 len = sizeof(buf);
556
39d89cd3
JM		 557 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
558}
559
560static struct ath_wiphy * get_wiphy(struct ath_softc *sc, const char *name)
561{
562 int i;
563 if (strcmp(name, wiphy_name(sc->pri_wiphy->hw->wiphy)) == 0)
564 return sc->pri_wiphy;
565 for (i = 0; i < sc->num_sec_wiphy; i++) {
566 struct ath_wiphy *aphy = sc->sec_wiphy[i];
567 if (aphy && strcmp(name, wiphy_name(aphy->hw->wiphy)) == 0)
568 return aphy;
569 }
570 return NULL;
571}
572
573static int del_wiphy(struct ath_softc *sc, const char *name)
574{
575 struct ath_wiphy *aphy = get_wiphy(sc, name);
576 if (!aphy)
577 return -ENOENT;
578 return ath9k_wiphy_del(aphy);
579}
580
581static int pause_wiphy(struct ath_softc *sc, const char *name)
582{
583 struct ath_wiphy *aphy = get_wiphy(sc, name);
584 if (!aphy)
585 return -ENOENT;
586 return ath9k_wiphy_pause(aphy);
587}
588
589static int unpause_wiphy(struct ath_softc *sc, const char *name)
590{
591 struct ath_wiphy *aphy = get_wiphy(sc, name);
592 if (!aphy)
593 return -ENOENT;
594 return ath9k_wiphy_unpause(aphy);
595}
596
597static int select_wiphy(struct ath_softc *sc, const char *name)
598{
599 struct ath_wiphy *aphy = get_wiphy(sc, name);
600 if (!aphy)
601 return -ENOENT;
602 return ath9k_wiphy_select(aphy);
603}
604
605static int schedule_wiphy(struct ath_softc *sc, const char *msec)
606{
607 ath9k_wiphy_set_scheduler(sc, simple_strtoul(msec, NULL, 0));
608 return 0;
609}
610
611static ssize_t write_file_wiphy(struct file *file, const char __user *user_buf,
612 size_t count, loff_t *ppos)
613{
614 struct ath_softc *sc = file->private_data;
615 char buf[50];
616 size_t len;
617
618 len = min(count, sizeof(buf) - 1);
619 if (copy_from_user(buf, user_buf, len))
620 return -EFAULT;
621 buf[len] = '\0';
622 if (len > 0 && buf[len - 1] == '\n')
623 buf[len - 1] = '\0';
624
625 if (strncmp(buf, "add", 3) == 0) {
626 int res = ath9k_wiphy_add(sc);
627 if (res < 0)
628 return res;
629 } else if (strncmp(buf, "del=", 4) == 0) {
630 int res = del_wiphy(sc, buf + 4);
631 if (res < 0)
632 return res;
633 } else if (strncmp(buf, "pause=", 6) == 0) {
634 int res = pause_wiphy(sc, buf + 6);
635 if (res < 0)
636 return res;
637 } else if (strncmp(buf, "unpause=", 8) == 0) {
638 int res = unpause_wiphy(sc, buf + 8);
639 if (res < 0)
640 return res;
641 } else if (strncmp(buf, "select=", 7) == 0) {
642 int res = select_wiphy(sc, buf + 7);
643 if (res < 0)
644 return res;
645 } else if (strncmp(buf, "schedule=", 9) == 0) {
646 int res = schedule_wiphy(sc, buf + 9);
647 if (res < 0)
648 return res;
649 } else
650 return -EOPNOTSUPP;
651
652 return count;
653}
654
655static const struct file_operations fops_wiphy = {
656 .read = read_file_wiphy,
657 .write = write_file_wiphy,
658 .open = ath9k_debugfs_open,
659 .owner = THIS_MODULE
660};
661
fec247c0
S		 662#define PR(str, elem) \
663 do { \
664 len += snprintf(buf + len, size - len, \
665 "%s%13u%11u%10u%10u\n", str, \
1d2231e2
FF		 666 sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BE]].elem, \
667 sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BK]].elem, \
668 sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VI]].elem, \
669 sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VO]].elem); \
fec247c0
S		 670} while(0)
671
672static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
673 size_t count, loff_t *ppos)
674{
675 struct ath_softc *sc = file->private_data;
676 char *buf;
677 unsigned int len = 0, size = 2048;
678 ssize_t retval = 0;
679
680 buf = kzalloc(size, GFP_KERNEL);
681 if (buf == NULL)
04236066 682 return -ENOMEM;
fec247c0
S		 683
684 len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
685
686 PR("MPDUs Queued: ", queued);
687 PR("MPDUs Completed: ", completed);
688 PR("Aggregates: ", a_aggr);
689 PR("AMPDUs Queued: ", a_queued);
690 PR("AMPDUs Completed:", a_completed);
691 PR("AMPDUs Retried: ", a_retries);
692 PR("AMPDUs XRetried: ", a_xretries);
693 PR("FIFO Underrun: ", fifo_underrun);
694 PR("TXOP Exceeded: ", xtxop);
695 PR("TXTIMER Expiry: ", timer_exp);
696 PR("DESC CFG Error: ", desc_cfg_err);
697 PR("DATA Underrun: ", data_underrun);
698 PR("DELIM Underrun: ", delim_underrun);
699
2b87f3aa
DC		 700 if (len > size)
701 len = size;
702
fec247c0
S		 703 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
704 kfree(buf);
705
706 return retval;
707}
708
709void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
db1a052b 710 struct ath_buf *bf, struct ath_tx_status *ts)
fec247c0 711{
fec247c0
S		 712 if (bf_isampdu(bf)) {
713 if (bf_isxretried(bf))
714 TX_STAT_INC(txq->axq_qnum, a_xretries);
715 else
716 TX_STAT_INC(txq->axq_qnum, a_completed);
717 } else {
718 TX_STAT_INC(txq->axq_qnum, completed);
719 }
720
db1a052b 721 if (ts->ts_status & ATH9K_TXERR_FIFO)
fec247c0 722 TX_STAT_INC(txq->axq_qnum, fifo_underrun);
db1a052b 723 if (ts->ts_status & ATH9K_TXERR_XTXOP)
fec247c0 724 TX_STAT_INC(txq->axq_qnum, xtxop);
db1a052b 725 if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
fec247c0 726 TX_STAT_INC(txq->axq_qnum, timer_exp);
db1a052b 727 if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
fec247c0 728 TX_STAT_INC(txq->axq_qnum, desc_cfg_err);
db1a052b 729 if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
fec247c0 730 TX_STAT_INC(txq->axq_qnum, data_underrun);
db1a052b 731 if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
fec247c0
S		 732 TX_STAT_INC(txq->axq_qnum, delim_underrun);
733}
734
735static const struct file_operations fops_xmit = {
736 .read = read_file_xmit,
737 .open = ath9k_debugfs_open,
738 .owner = THIS_MODULE
739};
39d89cd3 740
1395d3f0
S		 741static ssize_t read_file_recv(struct file *file, char __user *user_buf,
742 size_t count, loff_t *ppos)
743{
744#define PHY_ERR(s, p) \
745 len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \
746 sc->debug.stats.rxstats.phy_err_stats[p]);
747
748 struct ath_softc *sc = file->private_data;
749 char *buf;
750 unsigned int len = 0, size = 1152;
751 ssize_t retval = 0;
752
753 buf = kzalloc(size, GFP_KERNEL);
754 if (buf == NULL)
04236066 755 return -ENOMEM;
1395d3f0
S		 756
757 len += snprintf(buf + len, size - len,
758 "%18s : %10u\n", "CRC ERR",
759 sc->debug.stats.rxstats.crc_err);
760 len += snprintf(buf + len, size - len,
761 "%18s : %10u\n", "DECRYPT CRC ERR",
762 sc->debug.stats.rxstats.decrypt_crc_err);
763 len += snprintf(buf + len, size - len,
764 "%18s : %10u\n", "PHY ERR",
765 sc->debug.stats.rxstats.phy_err);
766 len += snprintf(buf + len, size - len,
767 "%18s : %10u\n", "MIC ERR",
768 sc->debug.stats.rxstats.mic_err);
769 len += snprintf(buf + len, size - len,
770 "%18s : %10u\n", "PRE-DELIM CRC ERR",
771 sc->debug.stats.rxstats.pre_delim_crc_err);
772 len += snprintf(buf + len, size - len,
773 "%18s : %10u\n", "POST-DELIM CRC ERR",
774 sc->debug.stats.rxstats.post_delim_crc_err);
775 len += snprintf(buf + len, size - len,
776 "%18s : %10u\n", "DECRYPT BUSY ERR",
777 sc->debug.stats.rxstats.decrypt_busy_err);
778
779 PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);
780 PHY_ERR("TIMING", ATH9K_PHYERR_TIMING);
781 PHY_ERR("PARITY", ATH9K_PHYERR_PARITY);
782 PHY_ERR("RATE", ATH9K_PHYERR_RATE);
783 PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH);
784 PHY_ERR("RADAR", ATH9K_PHYERR_RADAR);
785 PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE);
786 PHY_ERR("TOR", ATH9K_PHYERR_TOR);
787 PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING);
788 PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
789 PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
790 PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
791 PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP);
792 PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE);
793 PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART);
794 PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT);
795 PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING);
796 PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC);
797 PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
798 PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE);
799 PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART);
800 PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
801 PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP);
802 PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR);
803 PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
804 PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL);
805
2b87f3aa
DC		 806 if (len > size)
807 len = size;
808
1395d3f0
S		 809 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
810 kfree(buf);
811
812 return retval;
813
814#undef PHY_ERR
815}
816
8e6f5aa2 817void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
1395d3f0
S		 818{
819#define RX_STAT_INC(c) sc->debug.stats.rxstats.c++
820#define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
821
1395d3f0
S		 822 u32 phyerr;
823
8e6f5aa2 824 if (rs->rs_status & ATH9K_RXERR_CRC)
1395d3f0 825 RX_STAT_INC(crc_err);
8e6f5aa2 826 if (rs->rs_status & ATH9K_RXERR_DECRYPT)
1395d3f0 827 RX_STAT_INC(decrypt_crc_err);
8e6f5aa2 828 if (rs->rs_status & ATH9K_RXERR_MIC)
1395d3f0 829 RX_STAT_INC(mic_err);
8e6f5aa2 830 if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
1395d3f0 831 RX_STAT_INC(pre_delim_crc_err);
8e6f5aa2 832 if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
1395d3f0 833 RX_STAT_INC(post_delim_crc_err);
8e6f5aa2 834 if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
1395d3f0
S		 835 RX_STAT_INC(decrypt_busy_err);
836
8e6f5aa2 837 if (rs->rs_status & ATH9K_RXERR_PHY) {
1395d3f0 838 RX_STAT_INC(phy_err);
8e6f5aa2 839 phyerr = rs->rs_phyerr & 0x24;
1395d3f0
S		 840 RX_PHY_ERR_INC(phyerr);
841 }
842
843#undef RX_STAT_INC
844#undef RX_PHY_ERR_INC
845}
846
847static const struct file_operations fops_recv = {
848 .read = read_file_recv,
849 .open = ath9k_debugfs_open,
850 .owner = THIS_MODULE
851};
852
9bff0bc4
FF		 853static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
854 size_t count, loff_t *ppos)
855{
856 struct ath_softc *sc = file->private_data;
857 char buf[32];
858 unsigned int len;
859
2b87f3aa 860 len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
9bff0bc4
FF		 861 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
862}
863
864static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
865 size_t count, loff_t *ppos)
866{
867 struct ath_softc *sc = file->private_data;
868 unsigned long regidx;
869 char buf[32];
870 ssize_t len;
871
872 len = min(count, sizeof(buf) - 1);
873 if (copy_from_user(buf, user_buf, len))
04236066 874 return -EFAULT;
9bff0bc4
FF		 875
876 buf[len] = '\0';
877 if (strict_strtoul(buf, 0, &regidx))
878 return -EINVAL;
879
880 sc->debug.regidx = regidx;
881 return count;
882}
883
884static const struct file_operations fops_regidx = {
885 .read = read_file_regidx,
886 .write = write_file_regidx,
887 .open = ath9k_debugfs_open,
888 .owner = THIS_MODULE
889};
890
891static ssize_t read_file_regval(struct file *file, char __user *user_buf,
892 size_t count, loff_t *ppos)
893{
894 struct ath_softc *sc = file->private_data;
895 struct ath_hw *ah = sc->sc_ah;
896 char buf[32];
897 unsigned int len;
898 u32 regval;
899
900 regval = REG_READ_D(ah, sc->debug.regidx);
2b87f3aa 901 len = sprintf(buf, "0x%08x\n", regval);
9bff0bc4
FF		 902 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
903}
904
905static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
906 size_t count, loff_t *ppos)
907{
908 struct ath_softc *sc = file->private_data;
909 struct ath_hw *ah = sc->sc_ah;
910 unsigned long regval;
911 char buf[32];
912 ssize_t len;
913
914 len = min(count, sizeof(buf) - 1);
915 if (copy_from_user(buf, user_buf, len))
04236066 916 return -EFAULT;
9bff0bc4
FF		 917
918 buf[len] = '\0';
919 if (strict_strtoul(buf, 0, &regval))
920 return -EINVAL;
921
922 REG_WRITE_D(ah, sc->debug.regidx, regval);
923 return count;
924}
925
926static const struct file_operations fops_regval = {
927 .read = read_file_regval,
928 .write = write_file_regval,
929 .open = ath9k_debugfs_open,
930 .owner = THIS_MODULE
931};
932
4d6b228d 933int ath9k_init_debug(struct ath_hw *ah)
88b126af 934{
bc974f4a
LR		 935 struct ath_common *common = ath9k_hw_common(ah);
936 struct ath_softc *sc = (struct ath_softc *) common->priv;
4d6b228d 937
7dd58748
S		 938 if (!ath9k_debugfs_root)
939 return -ENOENT;
940
17d7904d 941 sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
19d8bc22 942 ath9k_debugfs_root);
17d7904d 943 if (!sc->debug.debugfs_phy)
c8a72c00 944 return -ENOMEM;
826d2680 945
a830df07 946#ifdef CONFIG_ATH_DEBUG
c8a72c00
FF		 947 if (!debugfs_create_file("debug", S_IRUSR | S_IWUSR,
948 sc->debug.debugfs_phy, sc, &fops_debug))
2493928e 949 goto err;
a830df07 950#endif
2493928e 951
c8a72c00
FF		 952 if (!debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy,
953 sc, &fops_dma))
2a163c6d
S		 954 goto err;
955
c8a72c00
FF		 956 if (!debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy,
957 sc, &fops_interrupt))
817e11de
S		 958 goto err;
959
c8a72c00
FF		 960 if (!debugfs_create_file("rcstat", S_IRUSR, sc->debug.debugfs_phy,
961 sc, &fops_rcstat))
7a7dec65
S		 962 goto err;
963
c8a72c00
FF		 964 if (!debugfs_create_file("wiphy", S_IRUSR | S_IWUSR,
965 sc->debug.debugfs_phy, sc, &fops_wiphy))
39d89cd3
JM		 966 goto err;
967
c8a72c00
FF		 968 if (!debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy,
969 sc, &fops_xmit))
2a163c6d
S		 970 goto err;
971
c8a72c00
FF		 972 if (!debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy,
973 sc, &fops_recv))
817e11de
S		 974 goto err;
975
15340694
FF		 976 if (!debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
977 sc->debug.debugfs_phy, sc, &fops_rx_chainmask))
7a7dec65
S		 978 goto err;
979
15340694
FF		 980 if (!debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
981 sc->debug.debugfs_phy, sc, &fops_tx_chainmask))
39d89cd3
JM		 982 goto err;
983
9bff0bc4
FF		 984 if (!debugfs_create_file("regidx", S_IRUSR | S_IWUSR,
985 sc->debug.debugfs_phy, sc, &fops_regidx))
fec247c0
S		 986 goto err;
987
9bff0bc4
FF		 988 if (!debugfs_create_file("regval", S_IRUSR | S_IWUSR,
989 sc->debug.debugfs_phy, sc, &fops_regval))
1395d3f0
S		 990 goto err;
991
41f3e54d
FF		 992 if (!debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
993 sc->debug.debugfs_phy, &ah->config.cwm_ignore_extcca))
994 goto err;
995
9bff0bc4 996 sc->debug.regidx = 0;
826d2680
S		 997 return 0;
998err:
4d6b228d 999 ath9k_exit_debug(ah);
826d2680
S		 1000 return -ENOMEM;
1001}
1002
4d6b228d 1003void ath9k_exit_debug(struct ath_hw *ah)
826d2680 1004{
bc974f4a
LR		 1005 struct ath_common *common = ath9k_hw_common(ah);
1006 struct ath_softc *sc = (struct ath_softc *) common->priv;
4d6b228d 1007
c8a72c00 1008 debugfs_remove_recursive(sc->debug.debugfs_phy);
19d8bc22
GJ		 1009}
1010
1011int ath9k_debug_create_root(void)
1012{
1013 ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
1014 if (!ath9k_debugfs_root)
1015 return -ENOENT;
1016
1017 return 0;
1018}
1019
1020void ath9k_debug_remove_root(void)
1021{
1022 debugfs_remove(ath9k_debugfs_root);
1023 ath9k_debugfs_root = NULL;
88b126af 1024}
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