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ath9k: remove unnecessary debugfs return code checks
[linux-block.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>
582d0064 18#include <linux/vmalloc.h>
52103115
GJ		 19#include <asm/unaligned.h>
20
394cf0a1 21#include "ath9k.h"
88b126af 22
475a6e4d
LR		 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
2a163c6d
S		 28static int ath9k_debugfs_open(struct inode *inode, struct file *file)
29{
30 file->private_data = inode->i_private;
31 return 0;
32}
33
582d0064
VT		 34static 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
41static int ath9k_debugfs_release_buf(struct inode *inode, struct file *file)
42{
43 vfree(file->private_data);
44 return 0;
45}
46
a830df07
FF		 47#ifdef CONFIG_ATH_DEBUG
48
2493928e
JH		 49static 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;
c46917bb 53 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
2493928e 54 char buf[32];
581f725c
VT		 55 unsigned int len;
56
2b87f3aa 57 len = sprintf(buf, "0x%08x\n", common->debug_mask);
2493928e
JH		 58 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
59}
60
61static 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;
c46917bb 65 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
2493928e
JH		 66 unsigned long mask;
67 char buf[32];
581f725c
VT		 68 ssize_t len;
69
70 len = min(count, sizeof(buf) - 1);
71 if (copy_from_user(buf, user_buf, len))
04236066 72 return -EFAULT;
581f725c
VT		 73
74 buf[len] = '\0';
75 if (strict_strtoul(buf, 0, &mask))
76 return -EINVAL;
77
c46917bb 78 common->debug_mask = mask;
2493928e
JH		 79 return count;
80}
81
82static const struct file_operations fops_debug = {
83 .read = read_file_debug,
84 .write = write_file_debug,
85 .open = ath9k_debugfs_open,
6038f373
AB		 86 .owner = THIS_MODULE,
87 .llseek = default_llseek,
2493928e
JH		 88};
89
a830df07
FF		 90#endif
91
991a0987
PR		 92#define DMA_BUF_LEN 1024
93
15340694
FF		 94static 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
2b87f3aa 102 len = sprintf(buf, "0x%08x\n", common->tx_chainmask);
15340694
FF		 103 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
104}
105
106static 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))
04236066 117 return -EFAULT;
15340694
FF		 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
128static const struct file_operations fops_tx_chainmask = {
129 .read = read_file_tx_chainmask,
130 .write = write_file_tx_chainmask,
131 .open = ath9k_debugfs_open,
6038f373
AB		 132 .owner = THIS_MODULE,
133 .llseek = default_llseek,
15340694
FF		 134};
135
136
137static 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
2b87f3aa 145 len = sprintf(buf, "0x%08x\n", common->rx_chainmask);
15340694
FF		 146 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
147}
148
149static 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))
04236066 160 return -EFAULT;
15340694
FF		 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
171static const struct file_operations fops_rx_chainmask = {
172 .read = read_file_rx_chainmask,
173 .write = write_file_rx_chainmask,
174 .open = ath9k_debugfs_open,
6038f373
AB		 175 .owner = THIS_MODULE,
176 .llseek = default_llseek,
15340694
FF		 177};
178
179
2a163c6d
S		 180static 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;
cbe61d8a 184 struct ath_hw *ah = sc->sc_ah;
991a0987
PR		 185 char *buf;
186 int retval;
2a163c6d
S		 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
991a0987
PR		 192 buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
193 if (!buf)
04236066 194 return -ENOMEM;
991a0987 195
7cf4a2e7
S		 196 ath9k_ps_wakeup(sc);
197
475a6e4d 198 REG_WRITE_D(ah, AR_MACMISC,
2a163c6d
S		 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
991a0987 203 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 204 "Raw DMA Debug values:\n");
205
206 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
207 if (i % 4 == 0)
991a0987 208 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
2a163c6d 209
475a6e4d 210 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
991a0987 211 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
2a163c6d
S		 212 i, val[i]);
213 }
214
991a0987
PR		 215 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
216 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 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
991a0987 230 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 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
991a0987 238 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
2a163c6d 239
991a0987 240 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 241 "qcu_stitch state: %2x qcu_fetch state: %2x\n",
242 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
991a0987 243 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 244 "qcu_complete state: %2x dcu_complete state: %2x\n",
245 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
991a0987 246 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 247 "dcu_arb state: %2x dcu_fp state: %2x\n",
248 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
991a0987 249 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 250 "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
251 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
991a0987 252 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 253 "txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
254 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
991a0987 255 len += snprintf(buf + len, DMA_BUF_LEN - len,
2a163c6d
S		 256 "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
257 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
258
60ece404 259 len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
475a6e4d 260 REG_READ_D(ah, AR_OBS_BUS_1));
991a0987 261 len += snprintf(buf + len, DMA_BUF_LEN - len,
60ece404 262 "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
2a163c6d 263
7cf4a2e7
S		 264 ath9k_ps_restore(sc);
265
2b87f3aa
DC		 266 if (len > DMA_BUF_LEN)
267 len = DMA_BUF_LEN;
268
991a0987
PR		 269 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
270 kfree(buf);
271 return retval;
2a163c6d
S		 272}
273
274static const struct file_operations fops_dma = {
275 .read = read_file_dma,
276 .open = ath9k_debugfs_open,
6038f373
AB		 277 .owner = THIS_MODULE,
278 .llseek = default_llseek,
2a163c6d
S		 279};
280
817e11de
S		 281
282void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
283{
284 if (status)
17d7904d 285 sc->debug.stats.istats.total++;
a9616f41
LR		 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++;
08578b8f
LR		 291 if (status & ATH9K_INT_BB_WATCHDOG)
292 sc->debug.stats.istats.bb_watchdog++;
a9616f41
LR		 293 } else {
294 if (status & ATH9K_INT_RX)
295 sc->debug.stats.istats.rxok++;
296 }
817e11de 297 if (status & ATH9K_INT_RXEOL)
17d7904d 298 sc->debug.stats.istats.rxeol++;
817e11de 299 if (status & ATH9K_INT_RXORN)
17d7904d 300 sc->debug.stats.istats.rxorn++;
817e11de 301 if (status & ATH9K_INT_TX)
17d7904d 302 sc->debug.stats.istats.txok++;
817e11de 303 if (status & ATH9K_INT_TXURN)
17d7904d 304 sc->debug.stats.istats.txurn++;
817e11de 305 if (status & ATH9K_INT_MIB)
17d7904d 306 sc->debug.stats.istats.mib++;
817e11de 307 if (status & ATH9K_INT_RXPHY)
17d7904d 308 sc->debug.stats.istats.rxphyerr++;
817e11de 309 if (status & ATH9K_INT_RXKCM)
17d7904d 310 sc->debug.stats.istats.rx_keycache_miss++;
817e11de 311 if (status & ATH9K_INT_SWBA)
17d7904d 312 sc->debug.stats.istats.swba++;
817e11de 313 if (status & ATH9K_INT_BMISS)
17d7904d 314 sc->debug.stats.istats.bmiss++;
817e11de 315 if (status & ATH9K_INT_BNR)
17d7904d 316 sc->debug.stats.istats.bnr++;
817e11de 317 if (status & ATH9K_INT_CST)
17d7904d 318 sc->debug.stats.istats.cst++;
817e11de 319 if (status & ATH9K_INT_GTT)
17d7904d 320 sc->debug.stats.istats.gtt++;
817e11de 321 if (status & ATH9K_INT_TIM)
17d7904d 322 sc->debug.stats.istats.tim++;
817e11de 323 if (status & ATH9K_INT_CABEND)
17d7904d 324 sc->debug.stats.istats.cabend++;
817e11de 325 if (status & ATH9K_INT_DTIMSYNC)
17d7904d 326 sc->debug.stats.istats.dtimsync++;
817e11de 327 if (status & ATH9K_INT_DTIM)
17d7904d 328 sc->debug.stats.istats.dtim++;
817e11de
S		 329}
330
331static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
332 size_t count, loff_t *ppos)
333{
334 struct ath_softc *sc = file->private_data;
335 char buf[512];
336 unsigned int len = 0;
337
a9616f41
LR		 338 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
339 len += snprintf(buf + len, sizeof(buf) - len,
340 "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp);
341 len += snprintf(buf + len, sizeof(buf) - len,
342 "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp);
08578b8f
LR		 343 len += snprintf(buf + len, sizeof(buf) - len,
344 "%8s: %10u\n", "WATCHDOG",
345 sc->debug.stats.istats.bb_watchdog);
a9616f41
LR		 346 } else {
347 len += snprintf(buf + len, sizeof(buf) - len,
348 "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
349 }
817e11de 350 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 351 "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol);
817e11de 352 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 353 "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn);
817e11de 354 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 355 "%8s: %10u\n", "TX", sc->debug.stats.istats.txok);
817e11de 356 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 357 "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn);
817e11de 358 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 359 "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib);
817e11de 360 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 361 "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr);
817e11de 362 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 363 "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss);
817e11de 364 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 365 "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba);
817e11de 366 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 367 "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss);
817e11de 368 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 369 "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr);
817e11de 370 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 371 "%8s: %10u\n", "CST", sc->debug.stats.istats.cst);
817e11de 372 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 373 "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt);
817e11de 374 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 375 "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim);
817e11de 376 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 377 "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend);
817e11de 378 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 379 "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync);
817e11de 380 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 381 "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
817e11de 382 len += snprintf(buf + len, sizeof(buf) - len,
17d7904d 383 "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
817e11de 384
2b87f3aa
DC		 385 if (len > sizeof(buf))
386 len = sizeof(buf);
387
817e11de
S		 388 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
389}
390
391static const struct file_operations fops_interrupt = {
392 .read = read_file_interrupt,
393 .open = ath9k_debugfs_open,
6038f373
AB		 394 .owner = THIS_MODULE,
395 .llseek = default_llseek,
817e11de
S		 396};
397
4e6975f7
BG		 398static const char *channel_type_str(enum nl80211_channel_type t)
399{
400 switch (t) {
401 case NL80211_CHAN_NO_HT:
402 return "no ht";
403 case NL80211_CHAN_HT20:
404 return "ht20";
405 case NL80211_CHAN_HT40MINUS:
406 return "ht40-";
407 case NL80211_CHAN_HT40PLUS:
408 return "ht40+";
409 default:
410 return "???";
411 }
412}
413
39d89cd3
JM		 414static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
415 size_t count, loff_t *ppos)
416{
417 struct ath_softc *sc = file->private_data;
34302397 418 struct ieee80211_channel *chan = sc->hw->conf.channel;
4e6975f7 419 struct ieee80211_conf *conf = &(sc->hw->conf);
39d89cd3
JM		 420 char buf[512];
421 unsigned int len = 0;
39d89cd3 422 u8 addr[ETH_ALEN];
39057512 423 u32 tmp;
39d89cd3
JM		 424
425 len += snprintf(buf + len, sizeof(buf) - len,
4e6975f7 426 "%s (chan=%d center-freq: %d MHz channel-type: %d (%s))\n",
34302397 427 wiphy_name(sc->hw->wiphy),
8e0167a4 428 ieee80211_frequency_to_channel(chan->center_freq),
4e6975f7
BG		 429 chan->center_freq,
430 conf->channel_type,
431 channel_type_str(conf->channel_type));
39d89cd3 432
475a6e4d
LR		 433 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
434 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
39d89cd3
JM		 435 len += snprintf(buf + len, sizeof(buf) - len,
436 "addr: %pM\n", addr);
475a6e4d
LR		 437 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr);
438 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
39d89cd3
JM		 439 len += snprintf(buf + len, sizeof(buf) - len,
440 "addrmask: %pM\n", addr);
39057512
BG		 441 tmp = ath9k_hw_getrxfilter(sc->sc_ah);
442 len += snprintf(buf + len, sizeof(buf) - len,
443 "rfilt: 0x%x", tmp);
444 if (tmp & ATH9K_RX_FILTER_UCAST)
445 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
446 if (tmp & ATH9K_RX_FILTER_MCAST)
447 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
448 if (tmp & ATH9K_RX_FILTER_BCAST)
449 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
450 if (tmp & ATH9K_RX_FILTER_CONTROL)
451 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
452 if (tmp & ATH9K_RX_FILTER_BEACON)
453 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
454 if (tmp & ATH9K_RX_FILTER_PROM)
455 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
456 if (tmp & ATH9K_RX_FILTER_PROBEREQ)
457 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
458 if (tmp & ATH9K_RX_FILTER_PHYERR)
459 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR");
460 if (tmp & ATH9K_RX_FILTER_MYBEACON)
461 len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON");
462 if (tmp & ATH9K_RX_FILTER_COMP_BAR)
463 len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
464 if (tmp & ATH9K_RX_FILTER_PSPOLL)
465 len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL");
466 if (tmp & ATH9K_RX_FILTER_PHYRADAR)
467 len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
468 if (tmp & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
469 len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL\n");
470 else
471 len += snprintf(buf + len, sizeof(buf) - len, "\n");
472
2b87f3aa
DC		 473 if (len > sizeof(buf))
474 len = sizeof(buf);
475
39d89cd3
JM		 476 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
477}
478
39d89cd3
JM		 479static const struct file_operations fops_wiphy = {
480 .read = read_file_wiphy,
39d89cd3 481 .open = ath9k_debugfs_open,
6038f373
AB		 482 .owner = THIS_MODULE,
483 .llseek = default_llseek,
39d89cd3
JM		 484};
485
5bec3e5a 486#define PR_QNUM(_n) sc->tx.txq_map[_n]->axq_qnum
fec247c0
S		 487#define PR(str, elem) \
488 do { \
489 len += snprintf(buf + len, size - len, \
490 "%s%13u%11u%10u%10u\n", str, \
5bec3e5a
FF		 491 sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].elem, \
492 sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].elem, \
493 sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].elem, \
494 sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].elem); \
7f010c93
BG		 495 if (len >= size) \
496 goto done; \
fec247c0
S		 497} while(0)
498
1f427dd9
BG		 499#define PRX(str, elem) \
500do { \
501 len += snprintf(buf + len, size - len, \
502 "%s%13u%11u%10u%10u\n", str, \
5bec3e5a
FF		 503 (unsigned int)(sc->tx.txq_map[WME_AC_BE]->elem), \
504 (unsigned int)(sc->tx.txq_map[WME_AC_BK]->elem), \
505 (unsigned int)(sc->tx.txq_map[WME_AC_VI]->elem), \
506 (unsigned int)(sc->tx.txq_map[WME_AC_VO]->elem)); \
7f010c93
BG		 507 if (len >= size) \
508 goto done; \
1f427dd9
BG		 509} while(0)
510
2dac4fb9
BG		 511#define PRQLE(str, elem) \
512do { \
513 len += snprintf(buf + len, size - len, \
514 "%s%13i%11i%10i%10i\n", str, \
5bec3e5a
FF		 515 list_empty(&sc->tx.txq_map[WME_AC_BE]->elem), \
516 list_empty(&sc->tx.txq_map[WME_AC_BK]->elem), \
517 list_empty(&sc->tx.txq_map[WME_AC_VI]->elem), \
518 list_empty(&sc->tx.txq_map[WME_AC_VO]->elem)); \
7f010c93
BG		 519 if (len >= size) \
520 goto done; \
2dac4fb9
BG		 521} while (0)
522
fec247c0
S		 523static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
524 size_t count, loff_t *ppos)
525{
526 struct ath_softc *sc = file->private_data;
527 char *buf;
7f010c93 528 unsigned int len = 0, size = 8000;
2dac4fb9 529 int i;
fec247c0 530 ssize_t retval = 0;
2dac4fb9 531 char tmp[32];
fec247c0
S		 532
533 buf = kzalloc(size, GFP_KERNEL);
534 if (buf == NULL)
04236066 535 return -ENOMEM;
fec247c0 536
60f2d1d5
BG		 537 len += sprintf(buf, "Num-Tx-Queues: %i tx-queues-setup: 0x%x"
538 " poll-work-seen: %u\n"
7f010c93
BG		 539 "%30s %10s%10s%10s\n\n",
540 ATH9K_NUM_TX_QUEUES, sc->tx.txqsetup,
60f2d1d5 541 sc->tx_complete_poll_work_seen,
7f010c93 542 "BE", "BK", "VI", "VO");
fec247c0
S		 543
544 PR("MPDUs Queued: ", queued);
545 PR("MPDUs Completed: ", completed);
546 PR("Aggregates: ", a_aggr);
bda8adda
BG		 547 PR("AMPDUs Queued HW:", a_queued_hw);
548 PR("AMPDUs Queued SW:", a_queued_sw);
fec247c0
S		 549 PR("AMPDUs Completed:", a_completed);
550 PR("AMPDUs Retried: ", a_retries);
551 PR("AMPDUs XRetried: ", a_xretries);
552 PR("FIFO Underrun: ", fifo_underrun);
553 PR("TXOP Exceeded: ", xtxop);
554 PR("TXTIMER Expiry: ", timer_exp);
555 PR("DESC CFG Error: ", desc_cfg_err);
556 PR("DATA Underrun: ", data_underrun);
557 PR("DELIM Underrun: ", delim_underrun);
99c15bf5
BG		 558 PR("TX-Pkts-All: ", tx_pkts_all);
559 PR("TX-Bytes-All: ", tx_bytes_all);
2dac4fb9
BG		 560 PR("hw-put-tx-buf: ", puttxbuf);
561 PR("hw-tx-start: ", txstart);
562 PR("hw-tx-proc-desc: ", txprocdesc);
7f010c93
BG		 563 len += snprintf(buf + len, size - len,
564 "%s%11p%11p%10p%10p\n", "txq-memory-address:",
db7889cd
BG		 565 sc->tx.txq_map[WME_AC_BE],
566 sc->tx.txq_map[WME_AC_BK],
567 sc->tx.txq_map[WME_AC_VI],
568 sc->tx.txq_map[WME_AC_VO]);
7f010c93
BG		 569 if (len >= size)
570 goto done;
fec247c0 571
1f427dd9
BG		 572 PRX("axq-qnum: ", axq_qnum);
573 PRX("axq-depth: ", axq_depth);
2dac4fb9 574 PRX("axq-ampdu_depth: ", axq_ampdu_depth);
1f427dd9
BG		 575 PRX("axq-stopped ", stopped);
576 PRX("tx-in-progress ", axq_tx_inprogress);
577 PRX("pending-frames ", pending_frames);
2dac4fb9
BG		 578 PRX("txq_headidx: ", txq_headidx);
579 PRX("txq_tailidx: ", txq_headidx);
580
581 PRQLE("axq_q empty: ", axq_q);
582 PRQLE("axq_acq empty: ", axq_acq);
583 PRQLE("txq_fifo_pending: ", txq_fifo_pending);
584 for (i = 0; i < ATH_TXFIFO_DEPTH; i++) {
585 snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i);
586 PRQLE(tmp, txq_fifo[i]);
587 }
7f010c93 588
71e025a5
BG		 589 /* Print out more detailed queue-info */
590 for (i = 0; i <= WME_AC_BK; i++) {
591 struct ath_txq *txq = &(sc->tx.txq[i]);
592 struct ath_atx_ac *ac;
593 struct ath_atx_tid *tid;
594 if (len >= size)
595 goto done;
596 spin_lock_bh(&txq->axq_lock);
597 if (!list_empty(&txq->axq_acq)) {
598 ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac,
599 list);
600 len += snprintf(buf + len, size - len,
601 "txq[%i] first-ac: %p sched: %i\n",
602 i, ac, ac->sched);
603 if (list_empty(&ac->tid_q) || (len >= size))
604 goto done_for;
605 tid = list_first_entry(&ac->tid_q, struct ath_atx_tid,
606 list);
607 len += snprintf(buf + len, size - len,
608 " first-tid: %p sched: %i paused: %i\n",
609 tid, tid->sched, tid->paused);
610 }
611 done_for:
612 spin_unlock_bh(&txq->axq_lock);
613 }
614
7f010c93
BG		 615done:
616 if (len > size)
617 len = size;
618
619 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
620 kfree(buf);
621
622 return retval;
623}
624
625static ssize_t read_file_stations(struct file *file, char __user *user_buf,
626 size_t count, loff_t *ppos)
627{
628 struct ath_softc *sc = file->private_data;
629 char *buf;
630 unsigned int len = 0, size = 64000;
631 struct ath_node *an = NULL;
632 ssize_t retval = 0;
633 int q;
634
635 buf = kzalloc(size, GFP_KERNEL);
636 if (buf == NULL)
637 return -ENOMEM;
638
639 len += snprintf(buf + len, size - len,
640 "Stations:\n"
641 " tid: addr sched paused buf_q-empty an ac\n"
642 " ac: addr sched tid_q-empty txq\n");
643
644 spin_lock(&sc->nodes_lock);
645 list_for_each_entry(an, &sc->nodes, list) {
646 len += snprintf(buf + len, size - len,
647 "%pM\n", an->sta->addr);
648 if (len >= size)
649 goto done;
650
651 for (q = 0; q < WME_NUM_TID; q++) {
652 struct ath_atx_tid *tid = &(an->tid[q]);
653 len += snprintf(buf + len, size - len,
654 " tid: %p %s %s %i %p %p\n",
655 tid, tid->sched ? "sched" : "idle",
656 tid->paused ? "paused" : "running",
657 list_empty(&tid->buf_q),
658 tid->an, tid->ac);
659 if (len >= size)
660 goto done;
661 }
662
663 for (q = 0; q < WME_NUM_AC; q++) {
664 struct ath_atx_ac *ac = &(an->ac[q]);
665 len += snprintf(buf + len, size - len,
666 " ac: %p %s %i %p\n",
667 ac, ac->sched ? "sched" : "idle",
668 list_empty(&ac->tid_q), ac->txq);
669 if (len >= size)
670 goto done;
671 }
672 }
673
674done:
675 spin_unlock(&sc->nodes_lock);
2b87f3aa
DC		 676 if (len > size)
677 len = size;
678
fec247c0
S		 679 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
680 kfree(buf);
681
682 return retval;
683}
684
55f6d0ff
BG		 685static ssize_t read_file_misc(struct file *file, char __user *user_buf,
686 size_t count, loff_t *ppos)
687{
688 struct ath_softc *sc = file->private_data;
689 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
690 struct ath_hw *ah = sc->sc_ah;
691 struct ieee80211_hw *hw = sc->hw;
692 char *buf;
693 unsigned int len = 0, size = 8000;
694 ssize_t retval = 0;
695 const char *tmp;
696 unsigned int reg;
697 struct ath9k_vif_iter_data iter_data;
698
699 ath9k_calculate_iter_data(hw, NULL, &iter_data);
700
701 buf = kzalloc(size, GFP_KERNEL);
702 if (buf == NULL)
703 return -ENOMEM;
704
705 switch (sc->sc_ah->opmode) {
706 case NL80211_IFTYPE_ADHOC:
707 tmp = "ADHOC";
708 break;
709 case NL80211_IFTYPE_MESH_POINT:
710 tmp = "MESH";
711 break;
712 case NL80211_IFTYPE_AP:
713 tmp = "AP";
714 break;
715 case NL80211_IFTYPE_STATION:
716 tmp = "STATION";
717 break;
718 default:
719 tmp = "???";
720 break;
721 }
722
723 len += snprintf(buf + len, size - len,
724 "curbssid: %pM\n"
725 "OP-Mode: %s(%i)\n"
726 "Beacon-Timer-Register: 0x%x\n",
727 common->curbssid,
728 tmp, (int)(sc->sc_ah->opmode),
729 REG_READ(ah, AR_BEACON_PERIOD));
730
731 reg = REG_READ(ah, AR_TIMER_MODE);
732 len += snprintf(buf + len, size - len, "Timer-Mode-Register: 0x%x (",
733 reg);
734 if (reg & AR_TBTT_TIMER_EN)
735 len += snprintf(buf + len, size - len, "TBTT ");
736 if (reg & AR_DBA_TIMER_EN)
737 len += snprintf(buf + len, size - len, "DBA ");
738 if (reg & AR_SWBA_TIMER_EN)
739 len += snprintf(buf + len, size - len, "SWBA ");
740 if (reg & AR_HCF_TIMER_EN)
741 len += snprintf(buf + len, size - len, "HCF ");
742 if (reg & AR_TIM_TIMER_EN)
743 len += snprintf(buf + len, size - len, "TIM ");
744 if (reg & AR_DTIM_TIMER_EN)
745 len += snprintf(buf + len, size - len, "DTIM ");
746 len += snprintf(buf + len, size - len, ")\n");
747
748 reg = sc->sc_ah->imask;
749 len += snprintf(buf + len, size - len, "imask: 0x%x (", reg);
750 if (reg & ATH9K_INT_SWBA)
751 len += snprintf(buf + len, size - len, "SWBA ");
752 if (reg & ATH9K_INT_BMISS)
753 len += snprintf(buf + len, size - len, "BMISS ");
754 if (reg & ATH9K_INT_CST)
755 len += snprintf(buf + len, size - len, "CST ");
756 if (reg & ATH9K_INT_RX)
757 len += snprintf(buf + len, size - len, "RX ");
758 if (reg & ATH9K_INT_RXHP)
759 len += snprintf(buf + len, size - len, "RXHP ");
760 if (reg & ATH9K_INT_RXLP)
761 len += snprintf(buf + len, size - len, "RXLP ");
762 if (reg & ATH9K_INT_BB_WATCHDOG)
763 len += snprintf(buf + len, size - len, "BB_WATCHDOG ");
764 /* there are other IRQs if one wanted to add them. */
765 len += snprintf(buf + len, size - len, ")\n");
766
767 len += snprintf(buf + len, size - len,
768 "VIF Counts: AP: %i STA: %i MESH: %i WDS: %i"
769 " ADHOC: %i OTHER: %i nvifs: %hi beacon-vifs: %hi\n",
770 iter_data.naps, iter_data.nstations, iter_data.nmeshes,
771 iter_data.nwds, iter_data.nadhocs, iter_data.nothers,
772 sc->nvifs, sc->nbcnvifs);
773
774 len += snprintf(buf + len, size - len,
775 "Calculated-BSSID-Mask: %pM\n",
776 iter_data.mask);
777
778 if (len > size)
779 len = size;
780
781 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
782 kfree(buf);
783
784 return retval;
785}
786
066dae93 787void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
5bec3e5a 788 struct ath_tx_status *ts, struct ath_txq *txq)
fec247c0 789{
5bec3e5a 790 int qnum = txq->axq_qnum;
066dae93
FF		 791
792 TX_STAT_INC(qnum, tx_pkts_all);
793 sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
99c15bf5 794
fec247c0
S		 795 if (bf_isampdu(bf)) {
796 if (bf_isxretried(bf))
066dae93 797 TX_STAT_INC(qnum, a_xretries);
fec247c0 798 else
066dae93 799 TX_STAT_INC(qnum, a_completed);
fec247c0 800 } else {
066dae93 801 TX_STAT_INC(qnum, completed);
fec247c0
S		 802 }
803
db1a052b 804 if (ts->ts_status & ATH9K_TXERR_FIFO)
066dae93 805 TX_STAT_INC(qnum, fifo_underrun);
db1a052b 806 if (ts->ts_status & ATH9K_TXERR_XTXOP)
066dae93 807 TX_STAT_INC(qnum, xtxop);
db1a052b 808 if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
066dae93 809 TX_STAT_INC(qnum, timer_exp);
db1a052b 810 if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
066dae93 811 TX_STAT_INC(qnum, desc_cfg_err);
db1a052b 812 if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
066dae93 813 TX_STAT_INC(qnum, data_underrun);
db1a052b 814 if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
066dae93 815 TX_STAT_INC(qnum, delim_underrun);
fec247c0
S		 816}
817
818static const struct file_operations fops_xmit = {
819 .read = read_file_xmit,
820 .open = ath9k_debugfs_open,
6038f373
AB		 821 .owner = THIS_MODULE,
822 .llseek = default_llseek,
fec247c0 823};
39d89cd3 824
7f010c93
BG		 825static const struct file_operations fops_stations = {
826 .read = read_file_stations,
827 .open = ath9k_debugfs_open,
828 .owner = THIS_MODULE,
829 .llseek = default_llseek,
830};
831
55f6d0ff
BG		 832static const struct file_operations fops_misc = {
833 .read = read_file_misc,
834 .open = ath9k_debugfs_open,
835 .owner = THIS_MODULE,
836 .llseek = default_llseek,
837};
838
1395d3f0
S		 839static ssize_t read_file_recv(struct file *file, char __user *user_buf,
840 size_t count, loff_t *ppos)
841{
842#define PHY_ERR(s, p) \
843 len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \
844 sc->debug.stats.rxstats.phy_err_stats[p]);
845
846 struct ath_softc *sc = file->private_data;
847 char *buf;
848 unsigned int len = 0, size = 1152;
849 ssize_t retval = 0;
850
851 buf = kzalloc(size, GFP_KERNEL);
852 if (buf == NULL)
04236066 853 return -ENOMEM;
1395d3f0
S		 854
855 len += snprintf(buf + len, size - len,
856 "%18s : %10u\n", "CRC ERR",
857 sc->debug.stats.rxstats.crc_err);
858 len += snprintf(buf + len, size - len,
859 "%18s : %10u\n", "DECRYPT CRC ERR",
860 sc->debug.stats.rxstats.decrypt_crc_err);
861 len += snprintf(buf + len, size - len,
862 "%18s : %10u\n", "PHY ERR",
863 sc->debug.stats.rxstats.phy_err);
864 len += snprintf(buf + len, size - len,
865 "%18s : %10u\n", "MIC ERR",
866 sc->debug.stats.rxstats.mic_err);
867 len += snprintf(buf + len, size - len,
868 "%18s : %10u\n", "PRE-DELIM CRC ERR",
869 sc->debug.stats.rxstats.pre_delim_crc_err);
870 len += snprintf(buf + len, size - len,
871 "%18s : %10u\n", "POST-DELIM CRC ERR",
872 sc->debug.stats.rxstats.post_delim_crc_err);
873 len += snprintf(buf + len, size - len,
874 "%18s : %10u\n", "DECRYPT BUSY ERR",
875 sc->debug.stats.rxstats.decrypt_busy_err);
876
877 PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);
878 PHY_ERR("TIMING", ATH9K_PHYERR_TIMING);
879 PHY_ERR("PARITY", ATH9K_PHYERR_PARITY);
880 PHY_ERR("RATE", ATH9K_PHYERR_RATE);
881 PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH);
882 PHY_ERR("RADAR", ATH9K_PHYERR_RADAR);
883 PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE);
884 PHY_ERR("TOR", ATH9K_PHYERR_TOR);
885 PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING);
886 PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
887 PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
888 PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
889 PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP);
890 PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE);
891 PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART);
892 PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT);
893 PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING);
894 PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC);
895 PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
896 PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE);
897 PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART);
898 PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
899 PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP);
900 PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR);
901 PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
902 PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL);
903
99c15bf5
BG		 904 len += snprintf(buf + len, size - len,
905 "%18s : %10u\n", "RX-Pkts-All",
906 sc->debug.stats.rxstats.rx_pkts_all);
907 len += snprintf(buf + len, size - len,
908 "%18s : %10u\n", "RX-Bytes-All",
909 sc->debug.stats.rxstats.rx_bytes_all);
910
2b87f3aa
DC		 911 if (len > size)
912 len = size;
913
1395d3f0
S		 914 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
915 kfree(buf);
916
917 return retval;
918
919#undef PHY_ERR
920}
921
8e6f5aa2 922void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
1395d3f0
S		 923{
924#define RX_STAT_INC(c) sc->debug.stats.rxstats.c++
925#define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
926
1395d3f0
S		 927 u32 phyerr;
928
99c15bf5
BG		 929 RX_STAT_INC(rx_pkts_all);
930 sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen;
931
8e6f5aa2 932 if (rs->rs_status & ATH9K_RXERR_CRC)
1395d3f0 933 RX_STAT_INC(crc_err);
8e6f5aa2 934 if (rs->rs_status & ATH9K_RXERR_DECRYPT)
1395d3f0 935 RX_STAT_INC(decrypt_crc_err);
8e6f5aa2 936 if (rs->rs_status & ATH9K_RXERR_MIC)
1395d3f0 937 RX_STAT_INC(mic_err);
8e6f5aa2 938 if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
1395d3f0 939 RX_STAT_INC(pre_delim_crc_err);
8e6f5aa2 940 if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
1395d3f0 941 RX_STAT_INC(post_delim_crc_err);
8e6f5aa2 942 if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
1395d3f0
S		 943 RX_STAT_INC(decrypt_busy_err);
944
8e6f5aa2 945 if (rs->rs_status & ATH9K_RXERR_PHY) {
1395d3f0 946 RX_STAT_INC(phy_err);
8e6f5aa2 947 phyerr = rs->rs_phyerr & 0x24;
1395d3f0
S		 948 RX_PHY_ERR_INC(phyerr);
949 }
950
951#undef RX_STAT_INC
952#undef RX_PHY_ERR_INC
953}
954
955static const struct file_operations fops_recv = {
956 .read = read_file_recv,
957 .open = ath9k_debugfs_open,
6038f373
AB		 958 .owner = THIS_MODULE,
959 .llseek = default_llseek,
1395d3f0
S		 960};
961
9bff0bc4
FF		 962static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
963 size_t count, loff_t *ppos)
964{
965 struct ath_softc *sc = file->private_data;
966 char buf[32];
967 unsigned int len;
968
2b87f3aa 969 len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
9bff0bc4
FF		 970 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
971}
972
973static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
974 size_t count, loff_t *ppos)
975{
976 struct ath_softc *sc = file->private_data;
977 unsigned long regidx;
978 char buf[32];
979 ssize_t len;
980
981 len = min(count, sizeof(buf) - 1);
982 if (copy_from_user(buf, user_buf, len))
04236066 983 return -EFAULT;
9bff0bc4
FF		 984
985 buf[len] = '\0';
986 if (strict_strtoul(buf, 0, &regidx))
987 return -EINVAL;
988
989 sc->debug.regidx = regidx;
990 return count;
991}
992
993static const struct file_operations fops_regidx = {
994 .read = read_file_regidx,
995 .write = write_file_regidx,
996 .open = ath9k_debugfs_open,
6038f373
AB		 997 .owner = THIS_MODULE,
998 .llseek = default_llseek,
9bff0bc4
FF		 999};
1000
1001static ssize_t read_file_regval(struct file *file, char __user *user_buf,
1002 size_t count, loff_t *ppos)
1003{
1004 struct ath_softc *sc = file->private_data;
1005 struct ath_hw *ah = sc->sc_ah;
1006 char buf[32];
1007 unsigned int len;
1008 u32 regval;
1009
1010 regval = REG_READ_D(ah, sc->debug.regidx);
2b87f3aa 1011 len = sprintf(buf, "0x%08x\n", regval);
9bff0bc4
FF		 1012 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1013}
1014
1015static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
1016 size_t count, loff_t *ppos)
1017{
1018 struct ath_softc *sc = file->private_data;
1019 struct ath_hw *ah = sc->sc_ah;
1020 unsigned long regval;
1021 char buf[32];
1022 ssize_t len;
1023
1024 len = min(count, sizeof(buf) - 1);
1025 if (copy_from_user(buf, user_buf, len))
04236066 1026 return -EFAULT;
9bff0bc4
FF		 1027
1028 buf[len] = '\0';
1029 if (strict_strtoul(buf, 0, &regval))
1030 return -EINVAL;
1031
1032 REG_WRITE_D(ah, sc->debug.regidx, regval);
1033 return count;
1034}
1035
1036static const struct file_operations fops_regval = {
1037 .read = read_file_regval,
1038 .write = write_file_regval,
1039 .open = ath9k_debugfs_open,
6038f373
AB		 1040 .owner = THIS_MODULE,
1041 .llseek = default_llseek,
9bff0bc4
FF		 1042};
1043
582d0064
VT		 1044#define REGDUMP_LINE_SIZE 20
1045
1046static int open_file_regdump(struct inode *inode, struct file *file)
1047{
1048 struct ath_softc *sc = inode->i_private;
1049 unsigned int len = 0;
1050 u8 *buf;
1051 int i;
1052 unsigned long num_regs, regdump_len, max_reg_offset;
1053
1054 max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x16bd4 : 0xb500;
1055 num_regs = max_reg_offset / 4 + 1;
1056 regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
1057 buf = vmalloc(regdump_len);
1058 if (!buf)
1059 return -ENOMEM;
1060
1061 ath9k_ps_wakeup(sc);
1062 for (i = 0; i < num_regs; i++)
1063 len += scnprintf(buf + len, regdump_len - len,
1064 "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
1065 ath9k_ps_restore(sc);
1066
1067 file->private_data = buf;
1068
1069 return 0;
1070}
1071
1072static const struct file_operations fops_regdump = {
1073 .open = open_file_regdump,
1074 .read = ath9k_debugfs_read_buf,
1075 .release = ath9k_debugfs_release_buf,
1076 .owner = THIS_MODULE,
1077 .llseek = default_llseek,/* read accesses f_pos */
1078};
1079
4d6b228d 1080int ath9k_init_debug(struct ath_hw *ah)
88b126af 1081{
bc974f4a
LR		 1082 struct ath_common *common = ath9k_hw_common(ah);
1083 struct ath_softc *sc = (struct ath_softc *) common->priv;
4d6b228d 1084
eb272441
BG		 1085 sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
1086 sc->hw->wiphy->debugfsdir);
17d7904d 1087 if (!sc->debug.debugfs_phy)
c8a72c00 1088 return -ENOMEM;
826d2680 1089
a830df07 1090#ifdef CONFIG_ATH_DEBUG
c70cab1a
FF		 1091 debugfs_create_file("debug", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1092 sc, &fops_debug);
a830df07 1093#endif
c70cab1a
FF		 1094 debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
1095 &fops_dma);
1096 debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc,
1097 &fops_interrupt);
1098 debugfs_create_file("wiphy", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1099 sc, &fops_wiphy);
1100 debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc,
1101 &fops_xmit);
1102 debugfs_create_file("stations", S_IRUSR, sc->debug.debugfs_phy, sc,
1103 &fops_stations);
1104 debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc,
1105 &fops_misc);
1106 debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc,
1107 &fops_recv);
1108 debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
1109 sc->debug.debugfs_phy, sc, &fops_rx_chainmask);
1110 debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
1111 sc->debug.debugfs_phy, sc, &fops_tx_chainmask);
1112 debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1113 sc, &fops_regidx);
1114 debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1115 sc, &fops_regval);
1116 debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
1117 sc->debug.debugfs_phy,
1118 &ah->config.cwm_ignore_extcca);
1119 debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc,
1120 &fops_regdump);
582d0064 1121
9bff0bc4 1122 sc->debug.regidx = 0;
826d2680 1123 return 0;
88b126af 1124}
Linux 6.x block layer and io_uring tree(s)