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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / net / wireless / ath / ath9k / debug.c
blob26ea51a72156475460fb60e40de7b469b364ff8e
1 /*
2 * Copyright (c) 2008-2011 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #include <linux/slab.h>
18 #include <linux/vmalloc.h>
19 #include <linux/export.h>
20 #include <asm/unaligned.h>
21
22 #include "ath9k.h"
23
24 #define REG_WRITE_D(_ah, _reg, _val) \
25 ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg))
26 #define REG_READ_D(_ah, _reg) \
27 ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
28
29 void ath9k_debug_sync_cause(struct ath_softc *sc, u32 sync_cause)
30 {
31 if (sync_cause)
32 sc->debug.stats.istats.sync_cause_all++;
33 if (sync_cause & AR_INTR_SYNC_RTC_IRQ)
34 sc->debug.stats.istats.sync_rtc_irq++;
35 if (sync_cause & AR_INTR_SYNC_MAC_IRQ)
36 sc->debug.stats.istats.sync_mac_irq++;
37 if (sync_cause & AR_INTR_SYNC_EEPROM_ILLEGAL_ACCESS)
38 sc->debug.stats.istats.eeprom_illegal_access++;
39 if (sync_cause & AR_INTR_SYNC_APB_TIMEOUT)
40 sc->debug.stats.istats.apb_timeout++;
41 if (sync_cause & AR_INTR_SYNC_PCI_MODE_CONFLICT)
42 sc->debug.stats.istats.pci_mode_conflict++;
43 if (sync_cause & AR_INTR_SYNC_HOST1_FATAL)
44 sc->debug.stats.istats.host1_fatal++;
45 if (sync_cause & AR_INTR_SYNC_HOST1_PERR)
46 sc->debug.stats.istats.host1_perr++;
47 if (sync_cause & AR_INTR_SYNC_TRCV_FIFO_PERR)
48 sc->debug.stats.istats.trcv_fifo_perr++;
49 if (sync_cause & AR_INTR_SYNC_RADM_CPL_EP)
50 sc->debug.stats.istats.radm_cpl_ep++;
51 if (sync_cause & AR_INTR_SYNC_RADM_CPL_DLLP_ABORT)
52 sc->debug.stats.istats.radm_cpl_dllp_abort++;
53 if (sync_cause & AR_INTR_SYNC_RADM_CPL_TLP_ABORT)
54 sc->debug.stats.istats.radm_cpl_tlp_abort++;
55 if (sync_cause & AR_INTR_SYNC_RADM_CPL_ECRC_ERR)
56 sc->debug.stats.istats.radm_cpl_ecrc_err++;
57 if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT)
58 sc->debug.stats.istats.radm_cpl_timeout++;
59 if (sync_cause & AR_INTR_SYNC_LOCAL_TIMEOUT)
60 sc->debug.stats.istats.local_timeout++;
61 if (sync_cause & AR_INTR_SYNC_PM_ACCESS)
62 sc->debug.stats.istats.pm_access++;
63 if (sync_cause & AR_INTR_SYNC_MAC_AWAKE)
64 sc->debug.stats.istats.mac_awake++;
65 if (sync_cause & AR_INTR_SYNC_MAC_ASLEEP)
66 sc->debug.stats.istats.mac_asleep++;
67 if (sync_cause & AR_INTR_SYNC_MAC_SLEEP_ACCESS)
68 sc->debug.stats.istats.mac_sleep_access++;
69 }
70
71 static ssize_t ath9k_debugfs_read_buf(struct file *file, char __user *user_buf,
72 size_t count, loff_t *ppos)
73 {
74 u8 *buf = file->private_data;
75 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
76 }
77
78 static int ath9k_debugfs_release_buf(struct inode *inode, struct file *file)
79 {
80 vfree(file->private_data);
81 return 0;
82 }
83
84 #ifdef CONFIG_ATH_DEBUG
85
86 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
87 size_t count, loff_t *ppos)
88 {
89 struct ath_softc *sc = file->private_data;
90 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
91 char buf[32];
92 unsigned int len;
93
94 len = sprintf(buf, "0x%08x\n", common->debug_mask);
95 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
96 }
97
98 static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
99 size_t count, loff_t *ppos)
100 {
101 struct ath_softc *sc = file->private_data;
102 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
103 unsigned long mask;
104 char buf[32];
105 ssize_t len;
106
107 len = min(count, sizeof(buf) - 1);
108 if (copy_from_user(buf, user_buf, len))
109 return -EFAULT;
110
111 buf[len] = '\0';
112 if (kstrtoul(buf, 0, &mask))
113 return -EINVAL;
114
115 common->debug_mask = mask;
116 return count;
117 }
118
119 static const struct file_operations fops_debug = {
120 .read = read_file_debug,
121 .write = write_file_debug,
122 .open = simple_open,
123 .owner = THIS_MODULE,
124 .llseek = default_llseek,
125 };
126
127 #endif
128
129 #define DMA_BUF_LEN 1024
130
131
132 static ssize_t read_file_ani(struct file *file, char __user *user_buf,
133 size_t count, loff_t *ppos)
134 {
135 struct ath_softc *sc = file->private_data;
136 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
137 struct ath_hw *ah = sc->sc_ah;
138 unsigned int len = 0;
139 const unsigned int size = 1024;
140 ssize_t retval = 0;
141 char *buf;
142 int i;
143 struct {
144 const char *name;
145 unsigned int val;
146 } ani_info[] = {
147 { "ANI RESET", ah->stats.ast_ani_reset },
148 { "OFDM LEVEL", ah->ani.ofdmNoiseImmunityLevel },
149 { "CCK LEVEL", ah->ani.cckNoiseImmunityLevel },
150 { "SPUR UP", ah->stats.ast_ani_spurup },
151 { "SPUR DOWN", ah->stats.ast_ani_spurdown },
152 { "OFDM WS-DET ON", ah->stats.ast_ani_ofdmon },
153 { "OFDM WS-DET OFF", ah->stats.ast_ani_ofdmoff },
154 { "MRC-CCK ON", ah->stats.ast_ani_ccklow },
155 { "MRC-CCK OFF", ah->stats.ast_ani_cckhigh },
156 { "FIR-STEP UP", ah->stats.ast_ani_stepup },
157 { "FIR-STEP DOWN", ah->stats.ast_ani_stepdown },
158 { "INV LISTENTIME", ah->stats.ast_ani_lneg_or_lzero },
159 { "OFDM ERRORS", ah->stats.ast_ani_ofdmerrs },
160 { "CCK ERRORS", ah->stats.ast_ani_cckerrs },
161 };
162
163 buf = kzalloc(size, GFP_KERNEL);
164 if (buf == NULL)
165 return -ENOMEM;
166
167 len += scnprintf(buf + len, size - len, "%15s: %s\n", "ANI",
168 common->disable_ani ? "DISABLED" : "ENABLED");
169
170 if (common->disable_ani)
171 goto exit;
172
173 for (i = 0; i < ARRAY_SIZE(ani_info); i++)
174 len += scnprintf(buf + len, size - len, "%15s: %u\n",
175 ani_info[i].name, ani_info[i].val);
176
177 exit:
178 if (len > size)
179 len = size;
180
181 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
182 kfree(buf);
183
184 return retval;
185 }
186
187 static ssize_t write_file_ani(struct file *file,
188 const char __user *user_buf,
189 size_t count, loff_t *ppos)
190 {
191 struct ath_softc *sc = file->private_data;
192 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
193 unsigned long ani;
194 char buf[32];
195 ssize_t len;
196
197 len = min(count, sizeof(buf) - 1);
198 if (copy_from_user(buf, user_buf, len))
199 return -EFAULT;
200
201 buf[len] = '\0';
202 if (kstrtoul(buf, 0, &ani))
203 return -EINVAL;
204
205 if (ani > 1)
206 return -EINVAL;
207
208 common->disable_ani = !ani;
209
210 if (common->disable_ani) {
211 clear_bit(ATH_OP_ANI_RUN, &common->op_flags);
212 ath_stop_ani(sc);
213 } else {
214 ath_check_ani(sc);
215 }
216
217 return count;
218 }
219
220 static const struct file_operations fops_ani = {
221 .read = read_file_ani,
222 .write = write_file_ani,
223 .open = simple_open,
224 .owner = THIS_MODULE,
225 .llseek = default_llseek,
226 };
227
228 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
229
230 static ssize_t read_file_bt_ant_diversity(struct file *file,
231 char __user *user_buf,
232 size_t count, loff_t *ppos)
233 {
234 struct ath_softc *sc = file->private_data;
235 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
236 char buf[32];
237 unsigned int len;
238
239 len = sprintf(buf, "%d\n", common->bt_ant_diversity);
240 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
241 }
242
243 static ssize_t write_file_bt_ant_diversity(struct file *file,
244 const char __user *user_buf,
245 size_t count, loff_t *ppos)
246 {
247 struct ath_softc *sc = file->private_data;
248 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
249 struct ath9k_hw_capabilities *pCap = &sc->sc_ah->caps;
250 unsigned long bt_ant_diversity;
251 char buf[32];
252 ssize_t len;
253
254 len = min(count, sizeof(buf) - 1);
255 if (copy_from_user(buf, user_buf, len))
256 return -EFAULT;
257
258 if (!(pCap->hw_caps & ATH9K_HW_CAP_BT_ANT_DIV))
259 goto exit;
260
261 buf[len] = '\0';
262 if (kstrtoul(buf, 0, &bt_ant_diversity))
263 return -EINVAL;
264
265 common->bt_ant_diversity = !!bt_ant_diversity;
266 ath9k_ps_wakeup(sc);
267 ath9k_hw_set_bt_ant_diversity(sc->sc_ah, common->bt_ant_diversity);
268 ath_dbg(common, CONFIG, "Enable WLAN/BT RX Antenna diversity: %d\n",
269 common->bt_ant_diversity);
270 ath9k_ps_restore(sc);
271 exit:
272 return count;
273 }
274
275 static const struct file_operations fops_bt_ant_diversity = {
276 .read = read_file_bt_ant_diversity,
277 .write = write_file_bt_ant_diversity,
278 .open = simple_open,
279 .owner = THIS_MODULE,
280 .llseek = default_llseek,
281 };
282
283 #endif
284
285 void ath9k_debug_stat_ant(struct ath_softc *sc,
286 struct ath_hw_antcomb_conf *div_ant_conf,
287 int main_rssi_avg, int alt_rssi_avg)
288 {
289 struct ath_antenna_stats *as_main = &sc->debug.stats.ant_stats[ANT_MAIN];
290 struct ath_antenna_stats *as_alt = &sc->debug.stats.ant_stats[ANT_ALT];
291
292 as_main->lna_attempt_cnt[div_ant_conf->main_lna_conf]++;
293 as_alt->lna_attempt_cnt[div_ant_conf->alt_lna_conf]++;
294
295 as_main->rssi_avg = main_rssi_avg;
296 as_alt->rssi_avg = alt_rssi_avg;
297 }
298
299 static ssize_t read_file_antenna_diversity(struct file *file,
300 char __user *user_buf,
301 size_t count, loff_t *ppos)
302 {
303 struct ath_softc *sc = file->private_data;
304 struct ath_hw *ah = sc->sc_ah;
305 struct ath9k_hw_capabilities *pCap = &ah->caps;
306 struct ath_antenna_stats *as_main = &sc->debug.stats.ant_stats[ANT_MAIN];
307 struct ath_antenna_stats *as_alt = &sc->debug.stats.ant_stats[ANT_ALT];
308 struct ath_hw_antcomb_conf div_ant_conf;
309 unsigned int len = 0;
310 const unsigned int size = 1024;
311 ssize_t retval = 0;
312 char *buf;
313 static const char *lna_conf_str[4] = {
314 "LNA1_MINUS_LNA2", "LNA2", "LNA1", "LNA1_PLUS_LNA2"
315 };
316
317 buf = kzalloc(size, GFP_KERNEL);
318 if (buf == NULL)
319 return -ENOMEM;
320
321 if (!(pCap->hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB)) {
322 len += scnprintf(buf + len, size - len, "%s\n",
323 "Antenna Diversity Combining is disabled");
324 goto exit;
325 }
326
327 ath9k_ps_wakeup(sc);
328 ath9k_hw_antdiv_comb_conf_get(ah, &div_ant_conf);
329 len += scnprintf(buf + len, size - len, "Current MAIN config : %s\n",
330 lna_conf_str[div_ant_conf.main_lna_conf]);
331 len += scnprintf(buf + len, size - len, "Current ALT config : %s\n",
332 lna_conf_str[div_ant_conf.alt_lna_conf]);
333 len += scnprintf(buf + len, size - len, "Average MAIN RSSI : %d\n",
334 as_main->rssi_avg);
335 len += scnprintf(buf + len, size - len, "Average ALT RSSI : %d\n\n",
336 as_alt->rssi_avg);
337 ath9k_ps_restore(sc);
338
339 len += scnprintf(buf + len, size - len, "Packet Receive Cnt:\n");
340 len += scnprintf(buf + len, size - len, "-------------------\n");
341
342 len += scnprintf(buf + len, size - len, "%30s%15s\n",
343 "MAIN", "ALT");
344 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
345 "TOTAL COUNT",
346 as_main->recv_cnt,
347 as_alt->recv_cnt);
348 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
349 "LNA1",
350 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1],
351 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1]);
352 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
353 "LNA2",
354 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2],
355 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2]);
356 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
357 "LNA1 + LNA2",
358 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
359 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]);
360 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
361 "LNA1 - LNA2",
362 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
363 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
364
365 len += scnprintf(buf + len, size - len, "\nLNA Config Attempts:\n");
366 len += scnprintf(buf + len, size - len, "--------------------\n");
367
368 len += scnprintf(buf + len, size - len, "%30s%15s\n",
369 "MAIN", "ALT");
370 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
371 "LNA1",
372 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1],
373 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1]);
374 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
375 "LNA2",
376 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2],
377 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2]);
378 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
379 "LNA1 + LNA2",
380 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
381 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]);
382 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
383 "LNA1 - LNA2",
384 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
385 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
386
387 exit:
388 if (len > size)
389 len = size;
390
391 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
392 kfree(buf);
393
394 return retval;
395 }
396
397 static const struct file_operations fops_antenna_diversity = {
398 .read = read_file_antenna_diversity,
399 .open = simple_open,
400 .owner = THIS_MODULE,
401 .llseek = default_llseek,
402 };
403
404 static int read_file_dma(struct seq_file *file, void *data)
405 {
406 struct ieee80211_hw *hw = dev_get_drvdata(file->private);
407 struct ath_softc *sc = hw->priv;
408 struct ath_hw *ah = sc->sc_ah;
409 u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
410 int i, qcuOffset = 0, dcuOffset = 0;
411 u32 *qcuBase = &val[0], *dcuBase = &val[4];
412
413 ath9k_ps_wakeup(sc);
414
415 REG_WRITE_D(ah, AR_MACMISC,
416 ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
417 (AR_MACMISC_MISC_OBS_BUS_1 <<
418 AR_MACMISC_MISC_OBS_BUS_MSB_S)));
419
420 seq_puts(file, "Raw DMA Debug values:\n");
421
422 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
423 if (i % 4 == 0)
424 seq_puts(file, "\n");
425
426 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
427 seq_printf(file, "%d: %08x ", i, val[i]);
428 }
429
430 seq_puts(file, "\n\n");
431 seq_puts(file, "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
432
433 for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
434 if (i == 8) {
435 qcuOffset = 0;
436 qcuBase++;
437 }
438
439 if (i == 6) {
440 dcuOffset = 0;
441 dcuBase++;
442 }
443
444 seq_printf(file, "%2d %2x %1x %2x %2x\n",
445 i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
446 (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
447 (val[2] & (0x7 << (i * 3))) >> (i * 3),
448 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
449 }
450
451 seq_puts(file, "\n");
452
453 seq_printf(file, "qcu_stitch state: %2x qcu_fetch state: %2x\n",
454 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
455 seq_printf(file, "qcu_complete state: %2x dcu_complete state: %2x\n",
456 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
457 seq_printf(file, "dcu_arb state: %2x dcu_fp state: %2x\n",
458 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
459 seq_printf(file, "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
460 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
461 seq_printf(file, "txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
462 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
463 seq_printf(file, "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
464 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
465
466 seq_printf(file, "pcu observe: 0x%x\n", REG_READ_D(ah, AR_OBS_BUS_1));
467 seq_printf(file, "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
468
469 ath9k_ps_restore(sc);
470
471 return 0;
472 }
473
474 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
475 {
476 if (status)
477 sc->debug.stats.istats.total++;
478 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
479 if (status & ATH9K_INT_RXLP)
480 sc->debug.stats.istats.rxlp++;
481 if (status & ATH9K_INT_RXHP)
482 sc->debug.stats.istats.rxhp++;
483 if (status & ATH9K_INT_BB_WATCHDOG)
484 sc->debug.stats.istats.bb_watchdog++;
485 } else {
486 if (status & ATH9K_INT_RX)
487 sc->debug.stats.istats.rxok++;
488 }
489 if (status & ATH9K_INT_RXEOL)
490 sc->debug.stats.istats.rxeol++;
491 if (status & ATH9K_INT_RXORN)
492 sc->debug.stats.istats.rxorn++;
493 if (status & ATH9K_INT_TX)
494 sc->debug.stats.istats.txok++;
495 if (status & ATH9K_INT_TXURN)
496 sc->debug.stats.istats.txurn++;
497 if (status & ATH9K_INT_RXPHY)
498 sc->debug.stats.istats.rxphyerr++;
499 if (status & ATH9K_INT_RXKCM)
500 sc->debug.stats.istats.rx_keycache_miss++;
501 if (status & ATH9K_INT_SWBA)
502 sc->debug.stats.istats.swba++;
503 if (status & ATH9K_INT_BMISS)
504 sc->debug.stats.istats.bmiss++;
505 if (status & ATH9K_INT_BNR)
506 sc->debug.stats.istats.bnr++;
507 if (status & ATH9K_INT_CST)
508 sc->debug.stats.istats.cst++;
509 if (status & ATH9K_INT_GTT)
510 sc->debug.stats.istats.gtt++;
511 if (status & ATH9K_INT_TIM)
512 sc->debug.stats.istats.tim++;
513 if (status & ATH9K_INT_CABEND)
514 sc->debug.stats.istats.cabend++;
515 if (status & ATH9K_INT_DTIMSYNC)
516 sc->debug.stats.istats.dtimsync++;
517 if (status & ATH9K_INT_DTIM)
518 sc->debug.stats.istats.dtim++;
519 if (status & ATH9K_INT_TSFOOR)
520 sc->debug.stats.istats.tsfoor++;
521 if (status & ATH9K_INT_MCI)
522 sc->debug.stats.istats.mci++;
523 if (status & ATH9K_INT_GENTIMER)
524 sc->debug.stats.istats.gen_timer++;
525 }
526
527 static int read_file_interrupt(struct seq_file *file, void *data)
528 {
529 struct ieee80211_hw *hw = dev_get_drvdata(file->private);
530 struct ath_softc *sc = hw->priv;
531
532 #define PR_IS(a, s) \
533 do { \
534 seq_printf(file, "%21s: %10u\n", a, \
535 sc->debug.stats.istats.s); \
536 } while (0)
537
538 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
539 PR_IS("RXLP", rxlp);
540 PR_IS("RXHP", rxhp);
541 PR_IS("WATCHDOG", bb_watchdog);
542 } else {
543 PR_IS("RX", rxok);
544 }
545 PR_IS("RXEOL", rxeol);
546 PR_IS("RXORN", rxorn);
547 PR_IS("TX", txok);
548 PR_IS("TXURN", txurn);
549 PR_IS("MIB", mib);
550 PR_IS("RXPHY", rxphyerr);
551 PR_IS("RXKCM", rx_keycache_miss);
552 PR_IS("SWBA", swba);
553 PR_IS("BMISS", bmiss);
554 PR_IS("BNR", bnr);
555 PR_IS("CST", cst);
556 PR_IS("GTT", gtt);
557 PR_IS("TIM", tim);
558 PR_IS("CABEND", cabend);
559 PR_IS("DTIMSYNC", dtimsync);
560 PR_IS("DTIM", dtim);
561 PR_IS("TSFOOR", tsfoor);
562 PR_IS("MCI", mci);
563 PR_IS("GENTIMER", gen_timer);
564 PR_IS("TOTAL", total);
565
566 seq_puts(file, "SYNC_CAUSE stats:\n");
567
568 PR_IS("Sync-All", sync_cause_all);
569 PR_IS("RTC-IRQ", sync_rtc_irq);
570 PR_IS("MAC-IRQ", sync_mac_irq);
571 PR_IS("EEPROM-Illegal-Access", eeprom_illegal_access);
572 PR_IS("APB-Timeout", apb_timeout);
573 PR_IS("PCI-Mode-Conflict", pci_mode_conflict);
574 PR_IS("HOST1-Fatal", host1_fatal);
575 PR_IS("HOST1-Perr", host1_perr);
576 PR_IS("TRCV-FIFO-Perr", trcv_fifo_perr);
577 PR_IS("RADM-CPL-EP", radm_cpl_ep);
578 PR_IS("RADM-CPL-DLLP-Abort", radm_cpl_dllp_abort);
579 PR_IS("RADM-CPL-TLP-Abort", radm_cpl_tlp_abort);
580 PR_IS("RADM-CPL-ECRC-Err", radm_cpl_ecrc_err);
581 PR_IS("RADM-CPL-Timeout", radm_cpl_timeout);
582 PR_IS("Local-Bus-Timeout", local_timeout);
583 PR_IS("PM-Access", pm_access);
584 PR_IS("MAC-Awake", mac_awake);
585 PR_IS("MAC-Asleep", mac_asleep);
586 PR_IS("MAC-Sleep-Access", mac_sleep_access);
587
588 return 0;
589 }
590
591 static int read_file_xmit(struct seq_file *file, void *data)
592 {
593 struct ieee80211_hw *hw = dev_get_drvdata(file->private);
594 struct ath_softc *sc = hw->priv;
595
596 seq_printf(file, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
597
598 PR("MPDUs Queued: ", queued);
599 PR("MPDUs Completed: ", completed);
600 PR("MPDUs XRetried: ", xretries);
601 PR("Aggregates: ", a_aggr);
602 PR("AMPDUs Queued HW:", a_queued_hw);
603 PR("AMPDUs Completed:", a_completed);
604 PR("AMPDUs Retried: ", a_retries);
605 PR("AMPDUs XRetried: ", a_xretries);
606 PR("TXERR Filtered: ", txerr_filtered);
607 PR("FIFO Underrun: ", fifo_underrun);
608 PR("TXOP Exceeded: ", xtxop);
609 PR("TXTIMER Expiry: ", timer_exp);
610 PR("DESC CFG Error: ", desc_cfg_err);
611 PR("DATA Underrun: ", data_underrun);
612 PR("DELIM Underrun: ", delim_underrun);
613 PR("TX-Pkts-All: ", tx_pkts_all);
614 PR("TX-Bytes-All: ", tx_bytes_all);
615 PR("HW-put-tx-buf: ", puttxbuf);
616 PR("HW-tx-start: ", txstart);
617 PR("HW-tx-proc-desc: ", txprocdesc);
618 PR("TX-Failed: ", txfailed);
619
620 return 0;
621 }
622
623 static void print_queue(struct ath_softc *sc, struct ath_txq *txq,
624 struct seq_file *file)
625 {
626 ath_txq_lock(sc, txq);
627
628 seq_printf(file, "%s: %d ", "qnum", txq->axq_qnum);
629 seq_printf(file, "%s: %2d ", "qdepth", txq->axq_depth);
630 seq_printf(file, "%s: %2d ", "ampdu-depth", txq->axq_ampdu_depth);
631 seq_printf(file, "%s: %3d\n", "pending", txq->pending_frames);
632
633 ath_txq_unlock(sc, txq);
634 }
635
636 static int read_file_queues(struct seq_file *file, void *data)
637 {
638 struct ieee80211_hw *hw = dev_get_drvdata(file->private);
639 struct ath_softc *sc = hw->priv;
640 struct ath_txq *txq;
641 int i;
642 static const char *qname[4] = {
643 "VO", "VI", "BE", "BK"
644 };
645
646 for (i = 0; i < IEEE80211_NUM_ACS; i++) {
647 txq = sc->tx.txq_map[i];
648 seq_printf(file, "(%s): ", qname[i]);
649 print_queue(sc, txq, file);
650 }
651
652 seq_puts(file, "(CAB): ");
653 print_queue(sc, sc->beacon.cabq, file);
654
655 return 0;
656 }
657
658 static int read_file_misc(struct seq_file *file, void *data)
659 {
660 struct ieee80211_hw *hw = dev_get_drvdata(file->private);
661 struct ath_softc *sc = hw->priv;
662 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
663 struct ath9k_vif_iter_data iter_data;
664 struct ath_chanctx *ctx;
665 unsigned int reg;
666 u32 rxfilter, i;
667
668 seq_printf(file, "BSSID: %pM\n", common->curbssid);
669 seq_printf(file, "BSSID-MASK: %pM\n", common->bssidmask);
670 seq_printf(file, "OPMODE: %s\n",
671 ath_opmode_to_string(sc->sc_ah->opmode));
672
673 ath9k_ps_wakeup(sc);
674 rxfilter = ath9k_hw_getrxfilter(sc->sc_ah);
675 ath9k_ps_restore(sc);
676
677 seq_printf(file, "RXFILTER: 0x%x", rxfilter);
678
679 if (rxfilter & ATH9K_RX_FILTER_UCAST)
680 seq_puts(file, " UCAST");
681 if (rxfilter & ATH9K_RX_FILTER_MCAST)
682 seq_puts(file, " MCAST");
683 if (rxfilter & ATH9K_RX_FILTER_BCAST)
684 seq_puts(file, " BCAST");
685 if (rxfilter & ATH9K_RX_FILTER_CONTROL)
686 seq_puts(file, " CONTROL");
687 if (rxfilter & ATH9K_RX_FILTER_BEACON)
688 seq_puts(file, " BEACON");
689 if (rxfilter & ATH9K_RX_FILTER_PROM)
690 seq_puts(file, " PROM");
691 if (rxfilter & ATH9K_RX_FILTER_PROBEREQ)
692 seq_puts(file, " PROBEREQ");
693 if (rxfilter & ATH9K_RX_FILTER_PHYERR)
694 seq_puts(file, " PHYERR");
695 if (rxfilter & ATH9K_RX_FILTER_MYBEACON)
696 seq_puts(file, " MYBEACON");
697 if (rxfilter & ATH9K_RX_FILTER_COMP_BAR)
698 seq_puts(file, " COMP_BAR");
699 if (rxfilter & ATH9K_RX_FILTER_PSPOLL)
700 seq_puts(file, " PSPOLL");
701 if (rxfilter & ATH9K_RX_FILTER_PHYRADAR)
702 seq_puts(file, " PHYRADAR");
703 if (rxfilter & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
704 seq_puts(file, " MCAST_BCAST_ALL");
705 if (rxfilter & ATH9K_RX_FILTER_CONTROL_WRAPPER)
706 seq_puts(file, " CONTROL_WRAPPER");
707
708 seq_puts(file, "\n");
709
710 reg = sc->sc_ah->imask;
711
712 seq_printf(file, "INTERRUPT-MASK: 0x%x", reg);
713
714 if (reg & ATH9K_INT_SWBA)
715 seq_puts(file, " SWBA");
716 if (reg & ATH9K_INT_BMISS)
717 seq_puts(file, " BMISS");
718 if (reg & ATH9K_INT_CST)
719 seq_puts(file, " CST");
720 if (reg & ATH9K_INT_RX)
721 seq_puts(file, " RX");
722 if (reg & ATH9K_INT_RXHP)
723 seq_puts(file, " RXHP");
724 if (reg & ATH9K_INT_RXLP)
725 seq_puts(file, " RXLP");
726 if (reg & ATH9K_INT_BB_WATCHDOG)
727 seq_puts(file, " BB_WATCHDOG");
728
729 seq_puts(file, "\n");
730
731 i = 0;
732 ath_for_each_chanctx(sc, ctx) {
733 if (list_empty(&ctx->vifs))
734 continue;
735 ath9k_calculate_iter_data(sc, ctx, &iter_data);
736
737 seq_printf(file,
738 "VIFS: CTX %i(%i) AP: %i STA: %i MESH: %i WDS: %i",
739 i++, (int)(ctx->assigned), iter_data.naps,
740 iter_data.nstations,
741 iter_data.nmeshes, iter_data.nwds);
742 seq_printf(file, " ADHOC: %i OCB: %i TOTAL: %hi BEACON-VIF: %hi\n",
743 iter_data.nadhocs, iter_data.nocbs, sc->cur_chan->nvifs,
744 sc->nbcnvifs);
745 }
746
747 return 0;
748 }
749
750 static int read_file_reset(struct seq_file *file, void *data)
751 {
752 struct ieee80211_hw *hw = dev_get_drvdata(file->private);
753 struct ath_softc *sc = hw->priv;
754 static const char * const reset_cause[__RESET_TYPE_MAX] = {
755 [RESET_TYPE_BB_HANG] = "Baseband Hang",
756 [RESET_TYPE_BB_WATCHDOG] = "Baseband Watchdog",
757 [RESET_TYPE_FATAL_INT] = "Fatal HW Error",
758 [RESET_TYPE_TX_ERROR] = "TX HW error",
759 [RESET_TYPE_TX_GTT] = "Transmit timeout",
760 [RESET_TYPE_TX_HANG] = "TX Path Hang",
761 [RESET_TYPE_PLL_HANG] = "PLL RX Hang",
762 [RESET_TYPE_MAC_HANG] = "MAC Hang",
763 [RESET_TYPE_BEACON_STUCK] = "Stuck Beacon",
764 [RESET_TYPE_MCI] = "MCI Reset",
765 [RESET_TYPE_CALIBRATION] = "Calibration error",
766 [RESET_TX_DMA_ERROR] = "Tx DMA stop error",
767 [RESET_RX_DMA_ERROR] = "Rx DMA stop error",
768 };
769 int i;
770
771 for (i = 0; i < ARRAY_SIZE(reset_cause); i++) {
772 if (!reset_cause[i])
773 continue;
774
775 seq_printf(file, "%17s: %2d\n", reset_cause[i],
776 sc->debug.stats.reset[i]);
777 }
778
779 return 0;
780 }
781
782 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
783 struct ath_tx_status *ts, struct ath_txq *txq,
784 unsigned int flags)
785 {
786 int qnum = txq->axq_qnum;
787
788 TX_STAT_INC(sc, qnum, tx_pkts_all);
789 sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
790
791 if (bf_isampdu(bf)) {
792 if (flags & ATH_TX_ERROR)
793 TX_STAT_INC(sc, qnum, a_xretries);
794 else
795 TX_STAT_INC(sc, qnum, a_completed);
796 } else {
797 if (ts->ts_status & ATH9K_TXERR_XRETRY)
798 TX_STAT_INC(sc, qnum, xretries);
799 else
800 TX_STAT_INC(sc, qnum, completed);
801 }
802
803 if (ts->ts_status & ATH9K_TXERR_FILT)
804 TX_STAT_INC(sc, qnum, txerr_filtered);
805 if (ts->ts_status & ATH9K_TXERR_FIFO)
806 TX_STAT_INC(sc, qnum, fifo_underrun);
807 if (ts->ts_status & ATH9K_TXERR_XTXOP)
808 TX_STAT_INC(sc, qnum, xtxop);
809 if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
810 TX_STAT_INC(sc, qnum, timer_exp);
811 if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
812 TX_STAT_INC(sc, qnum, desc_cfg_err);
813 if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
814 TX_STAT_INC(sc, qnum, data_underrun);
815 if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
816 TX_STAT_INC(sc, qnum, delim_underrun);
817 }
818
819 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
820 {
821 ath9k_cmn_debug_stat_rx(&sc->debug.stats.rxstats, rs);
822 }
823
824 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
825 size_t count, loff_t *ppos)
826 {
827 struct ath_softc *sc = file->private_data;
828 char buf[32];
829 unsigned int len;
830
831 len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
832 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
833 }
834
835 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
836 size_t count, loff_t *ppos)
837 {
838 struct ath_softc *sc = file->private_data;
839 unsigned long regidx;
840 char buf[32];
841 ssize_t len;
842
843 len = min(count, sizeof(buf) - 1);
844 if (copy_from_user(buf, user_buf, len))
845 return -EFAULT;
846
847 buf[len] = '\0';
848 if (kstrtoul(buf, 0, &regidx))
849 return -EINVAL;
850
851 sc->debug.regidx = regidx;
852 return count;
853 }
854
855 static const struct file_operations fops_regidx = {
856 .read = read_file_regidx,
857 .write = write_file_regidx,
858 .open = simple_open,
859 .owner = THIS_MODULE,
860 .llseek = default_llseek,
861 };
862
863 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
864 size_t count, loff_t *ppos)
865 {
866 struct ath_softc *sc = file->private_data;
867 struct ath_hw *ah = sc->sc_ah;
868 char buf[32];
869 unsigned int len;
870 u32 regval;
871
872 ath9k_ps_wakeup(sc);
873 regval = REG_READ_D(ah, sc->debug.regidx);
874 ath9k_ps_restore(sc);
875 len = sprintf(buf, "0x%08x\n", regval);
876 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
877 }
878
879 static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
880 size_t count, loff_t *ppos)
881 {
882 struct ath_softc *sc = file->private_data;
883 struct ath_hw *ah = sc->sc_ah;
884 unsigned long regval;
885 char buf[32];
886 ssize_t len;
887
888 len = min(count, sizeof(buf) - 1);
889 if (copy_from_user(buf, user_buf, len))
890 return -EFAULT;
891
892 buf[len] = '\0';
893 if (kstrtoul(buf, 0, &regval))
894 return -EINVAL;
895
896 ath9k_ps_wakeup(sc);
897 REG_WRITE_D(ah, sc->debug.regidx, regval);
898 ath9k_ps_restore(sc);
899 return count;
900 }
901
902 static const struct file_operations fops_regval = {
903 .read = read_file_regval,
904 .write = write_file_regval,
905 .open = simple_open,
906 .owner = THIS_MODULE,
907 .llseek = default_llseek,
908 };
909
910 #define REGDUMP_LINE_SIZE 20
911
912 static int open_file_regdump(struct inode *inode, struct file *file)
913 {
914 struct ath_softc *sc = inode->i_private;
915 unsigned int len = 0;
916 u8 *buf;
917 int i, j = 0;
918 unsigned long num_regs, regdump_len, max_reg_offset;
919 static const struct reg_hole {
920 u32 start;
921 u32 end;
922 } reg_hole_list[] = {
923 {0x0200, 0x07fc},
924 {0x0c00, 0x0ffc},
925 {0x2000, 0x3ffc},
926 {0x4100, 0x6ffc},
927 {0x705c, 0x7ffc},
928 {0x0000, 0x0000}
929 };
930
931 max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x8800 : 0xb500;
932 num_regs = max_reg_offset / 4 + 1;
933 regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
934 buf = vmalloc(regdump_len);
935 if (!buf)
936 return -ENOMEM;
937
938 ath9k_ps_wakeup(sc);
939 for (i = 0; i < num_regs; i++) {
940 if (reg_hole_list[j].start == i << 2) {
941 i = reg_hole_list[j].end >> 2;
942 j++;
943 continue;
944 }
945
946 len += scnprintf(buf + len, regdump_len - len,
947 "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
948 }
949 ath9k_ps_restore(sc);
950
951 file->private_data = buf;
952
953 return 0;
954 }
955
956 static const struct file_operations fops_regdump = {
957 .open = open_file_regdump,
958 .read = ath9k_debugfs_read_buf,
959 .release = ath9k_debugfs_release_buf,
960 .owner = THIS_MODULE,
961 .llseek = default_llseek,/* read accesses f_pos */
962 };
963
964 static int read_file_dump_nfcal(struct seq_file *file, void *data)
965 {
966 struct ieee80211_hw *hw = dev_get_drvdata(file->private);
967 struct ath_softc *sc = hw->priv;
968 struct ath_hw *ah = sc->sc_ah;
969 struct ath9k_nfcal_hist *h = sc->cur_chan->caldata.nfCalHist;
970 struct ath_common *common = ath9k_hw_common(ah);
971 struct ieee80211_conf *conf = &common->hw->conf;
972 u32 i, j;
973 u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
974 u8 nread;
975
976 seq_printf(file, "Channel Noise Floor : %d\n", ah->noise);
977 seq_puts(file, "Chain | privNF | # Readings | NF Readings\n");
978 for (i = 0; i < NUM_NF_READINGS; i++) {
979 if (!(chainmask & (1 << i)) ||
980 ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
981 continue;
982
983 nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount;
984 seq_printf(file, " %d\t %d\t %d\t\t", i, h[i].privNF, nread);
985 for (j = 0; j < nread; j++)
986 seq_printf(file, " %d", h[i].nfCalBuffer[j]);
987 seq_puts(file, "\n");
988 }
989
990 return 0;
991 }
992
993 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
994 static ssize_t read_file_btcoex(struct file *file, char __user *user_buf,
995 size_t count, loff_t *ppos)
996 {
997 struct ath_softc *sc = file->private_data;
998 u32 len = 0, size = 1500;
999 char *buf;
1000 size_t retval;
1001
1002 buf = kzalloc(size, GFP_KERNEL);
1003 if (buf == NULL)
1004 return -ENOMEM;
1005
1006 if (!sc->sc_ah->common.btcoex_enabled) {
1007 len = scnprintf(buf, size, "%s\n",
1008 "BTCOEX is disabled");
1009 goto exit;
1010 }
1011
1012 len = ath9k_dump_btcoex(sc, buf, size);
1013 exit:
1014 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1015 kfree(buf);
1016
1017 return retval;
1018 }
1019
1020 static const struct file_operations fops_btcoex = {
1021 .read = read_file_btcoex,
1022 .open = simple_open,
1023 .owner = THIS_MODULE,
1024 .llseek = default_llseek,
1025 };
1026 #endif
1027
1028 #ifdef CONFIG_ATH9K_DYNACK
1029 static ssize_t read_file_ackto(struct file *file, char __user *user_buf,
1030 size_t count, loff_t *ppos)
1031 {
1032 struct ath_softc *sc = file->private_data;
1033 struct ath_hw *ah = sc->sc_ah;
1034 char buf[32];
1035 unsigned int len;
1036
1037 len = sprintf(buf, "%u %c\n", ah->dynack.ackto,
1038 (ah->dynack.enabled) ? 'A' : 'S');
1039
1040 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1041 }
1042
1043 static const struct file_operations fops_ackto = {
1044 .read = read_file_ackto,
1045 .open = simple_open,
1046 .owner = THIS_MODULE,
1047 .llseek = default_llseek,
1048 };
1049 #endif
1050
1051 #ifdef CONFIG_ATH9K_WOW
1052
1053 static ssize_t read_file_wow(struct file *file, char __user *user_buf,
1054 size_t count, loff_t *ppos)
1055 {
1056 struct ath_softc *sc = file->private_data;
1057 unsigned int len = 0, size = 32;
1058 ssize_t retval;
1059 char *buf;
1060
1061 buf = kzalloc(size, GFP_KERNEL);
1062 if (!buf)
1063 return -ENOMEM;
1064
1065 len += scnprintf(buf + len, size - len, "WOW: %s\n",
1066 sc->force_wow ? "ENABLED" : "DISABLED");
1067
1068 if (len > size)
1069 len = size;
1070
1071 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1072 kfree(buf);
1073
1074 return retval;
1075 }
1076
1077 static ssize_t write_file_wow(struct file *file, const char __user *user_buf,
1078 size_t count, loff_t *ppos)
1079 {
1080 struct ath_softc *sc = file->private_data;
1081 unsigned long val;
1082 char buf[32];
1083 ssize_t len;
1084
1085 len = min(count, sizeof(buf) - 1);
1086 if (copy_from_user(buf, user_buf, len))
1087 return -EFAULT;
1088
1089 buf[len] = '\0';
1090 if (kstrtoul(buf, 0, &val))
1091 return -EINVAL;
1092
1093 if (val != 1)
1094 return -EINVAL;
1095
1096 if (!sc->force_wow) {
1097 sc->force_wow = true;
1098 ath9k_init_wow(sc->hw);
1099 }
1100
1101 return count;
1102 }
1103
1104 static const struct file_operations fops_wow = {
1105 .read = read_file_wow,
1106 .write = write_file_wow,
1107 .open = simple_open,
1108 .owner = THIS_MODULE,
1109 .llseek = default_llseek,
1110 };
1111
1112 #endif
1113
1114 static ssize_t read_file_tpc(struct file *file, char __user *user_buf,
1115 size_t count, loff_t *ppos)
1116 {
1117 struct ath_softc *sc = file->private_data;
1118 struct ath_hw *ah = sc->sc_ah;
1119 unsigned int len = 0, size = 32;
1120 ssize_t retval;
1121 char *buf;
1122
1123 buf = kzalloc(size, GFP_KERNEL);
1124 if (!buf)
1125 return -ENOMEM;
1126
1127 len += scnprintf(buf + len, size - len, "%s\n",
1128 ah->tpc_enabled ? "ENABLED" : "DISABLED");
1129
1130 if (len > size)
1131 len = size;
1132
1133 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1134 kfree(buf);
1135
1136 return retval;
1137 }
1138
1139 static ssize_t write_file_tpc(struct file *file, const char __user *user_buf,
1140 size_t count, loff_t *ppos)
1141 {
1142 struct ath_softc *sc = file->private_data;
1143 struct ath_hw *ah = sc->sc_ah;
1144 unsigned long val;
1145 char buf[32];
1146 ssize_t len;
1147 bool tpc_enabled;
1148
1149 len = min(count, sizeof(buf) - 1);
1150 if (copy_from_user(buf, user_buf, len))
1151 return -EFAULT;
1152
1153 buf[len] = '\0';
1154 if (kstrtoul(buf, 0, &val))
1155 return -EINVAL;
1156
1157 if (val > 1)
1158 return -EINVAL;
1159
1160 tpc_enabled = !!val;
1161
1162 if (tpc_enabled != ah->tpc_enabled) {
1163 ah->tpc_enabled = tpc_enabled;
1164
1165 mutex_lock(&sc->mutex);
1166 ath9k_set_txpower(sc, NULL);
1167 mutex_unlock(&sc->mutex);
1168 }
1169
1170 return count;
1171 }
1172
1173 static const struct file_operations fops_tpc = {
1174 .read = read_file_tpc,
1175 .write = write_file_tpc,
1176 .open = simple_open,
1177 .owner = THIS_MODULE,
1178 .llseek = default_llseek,
1179 };
1180
1181 static ssize_t read_file_nf_override(struct file *file,
1182 char __user *user_buf,
1183 size_t count, loff_t *ppos)
1184 {
1185 struct ath_softc *sc = file->private_data;
1186 struct ath_hw *ah = sc->sc_ah;
1187 char buf[32];
1188 unsigned int len;
1189
1190 if (ah->nf_override == 0)
1191 len = sprintf(buf, "off\n");
1192 else
1193 len = sprintf(buf, "%d\n", ah->nf_override);
1194
1195 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1196 }
1197
1198 static ssize_t write_file_nf_override(struct file *file,
1199 const char __user *user_buf,
1200 size_t count, loff_t *ppos)
1201 {
1202 struct ath_softc *sc = file->private_data;
1203 struct ath_hw *ah = sc->sc_ah;
1204 long val;
1205 char buf[32];
1206 ssize_t len;
1207
1208 len = min(count, sizeof(buf) - 1);
1209 if (copy_from_user(buf, user_buf, len))
1210 return -EFAULT;
1211
1212 buf[len] = '\0';
1213 if (strncmp("off", buf, 3) == 0)
1214 val = 0;
1215 else if (kstrtol(buf, 0, &val))
1216 return -EINVAL;
1217
1218 if (val > 0)
1219 return -EINVAL;
1220
1221 if (val < -120)
1222 return -EINVAL;
1223
1224 ah->nf_override = val;
1225
1226 if (ah->curchan)
1227 ath9k_hw_loadnf(ah, ah->curchan);
1228
1229 return count;
1230 }
1231
1232 static const struct file_operations fops_nf_override = {
1233 .read = read_file_nf_override,
1234 .write = write_file_nf_override,
1235 .open = simple_open,
1236 .owner = THIS_MODULE,
1237 .llseek = default_llseek,
1238 };
1239
1240 /* Ethtool support for get-stats */
1241
1242 #define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
1243 static const char ath9k_gstrings_stats[][ETH_GSTRING_LEN] = {
1244 "tx_pkts_nic",
1245 "tx_bytes_nic",
1246 "rx_pkts_nic",
1247 "rx_bytes_nic",
1248 AMKSTR(d_tx_pkts),
1249 AMKSTR(d_tx_bytes),
1250 AMKSTR(d_tx_mpdus_queued),
1251 AMKSTR(d_tx_mpdus_completed),
1252 AMKSTR(d_tx_mpdu_xretries),
1253 AMKSTR(d_tx_aggregates),
1254 AMKSTR(d_tx_ampdus_queued_hw),
1255 AMKSTR(d_tx_ampdus_completed),
1256 AMKSTR(d_tx_ampdu_retries),
1257 AMKSTR(d_tx_ampdu_xretries),
1258 AMKSTR(d_tx_fifo_underrun),
1259 AMKSTR(d_tx_op_exceeded),
1260 AMKSTR(d_tx_timer_expiry),
1261 AMKSTR(d_tx_desc_cfg_err),
1262 AMKSTR(d_tx_data_underrun),
1263 AMKSTR(d_tx_delim_underrun),
1264 "d_rx_crc_err",
1265 "d_rx_decrypt_crc_err",
1266 "d_rx_phy_err",
1267 "d_rx_mic_err",
1268 "d_rx_pre_delim_crc_err",
1269 "d_rx_post_delim_crc_err",
1270 "d_rx_decrypt_busy_err",
1271
1272 "d_rx_phyerr_radar",
1273 "d_rx_phyerr_ofdm_timing",
1274 "d_rx_phyerr_cck_timing",
1275
1276 };
1277 #define ATH9K_SSTATS_LEN ARRAY_SIZE(ath9k_gstrings_stats)
1278
1279 void ath9k_get_et_strings(struct ieee80211_hw *hw,
1280 struct ieee80211_vif *vif,
1281 u32 sset, u8 *data)
1282 {
1283 if (sset == ETH_SS_STATS)
1284 memcpy(data, *ath9k_gstrings_stats,
1285 sizeof(ath9k_gstrings_stats));
1286 }
1287
1288 int ath9k_get_et_sset_count(struct ieee80211_hw *hw,
1289 struct ieee80211_vif *vif, int sset)
1290 {
1291 if (sset == ETH_SS_STATS)
1292 return ATH9K_SSTATS_LEN;
1293 return 0;
1294 }
1295
1296 #define AWDATA(elem) \
1297 do { \
1298 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].elem; \
1299 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].elem; \
1300 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].elem; \
1301 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].elem; \
1302 } while (0)
1303
1304 #define AWDATA_RX(elem) \
1305 do { \
1306 data[i++] = sc->debug.stats.rxstats.elem; \
1307 } while (0)
1308
1309 void ath9k_get_et_stats(struct ieee80211_hw *hw,
1310 struct ieee80211_vif *vif,
1311 struct ethtool_stats *stats, u64 *data)
1312 {
1313 struct ath_softc *sc = hw->priv;
1314 int i = 0;
1315
1316 data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_pkts_all +
1317 sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_pkts_all +
1318 sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_pkts_all +
1319 sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_pkts_all);
1320 data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_bytes_all +
1321 sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_bytes_all +
1322 sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_bytes_all +
1323 sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_bytes_all);
1324 AWDATA_RX(rx_pkts_all);
1325 AWDATA_RX(rx_bytes_all);
1326
1327 AWDATA(tx_pkts_all);
1328 AWDATA(tx_bytes_all);
1329 AWDATA(queued);
1330 AWDATA(completed);
1331 AWDATA(xretries);
1332 AWDATA(a_aggr);
1333 AWDATA(a_queued_hw);
1334 AWDATA(a_completed);
1335 AWDATA(a_retries);
1336 AWDATA(a_xretries);
1337 AWDATA(fifo_underrun);
1338 AWDATA(xtxop);
1339 AWDATA(timer_exp);
1340 AWDATA(desc_cfg_err);
1341 AWDATA(data_underrun);
1342 AWDATA(delim_underrun);
1343
1344 AWDATA_RX(crc_err);
1345 AWDATA_RX(decrypt_crc_err);
1346 AWDATA_RX(phy_err);
1347 AWDATA_RX(mic_err);
1348 AWDATA_RX(pre_delim_crc_err);
1349 AWDATA_RX(post_delim_crc_err);
1350 AWDATA_RX(decrypt_busy_err);
1351
1352 AWDATA_RX(phy_err_stats[ATH9K_PHYERR_RADAR]);
1353 AWDATA_RX(phy_err_stats[ATH9K_PHYERR_OFDM_TIMING]);
1354 AWDATA_RX(phy_err_stats[ATH9K_PHYERR_CCK_TIMING]);
1355
1356 WARN_ON(i != ATH9K_SSTATS_LEN);
1357 }
1358
1359 void ath9k_deinit_debug(struct ath_softc *sc)
1360 {
1361 ath9k_cmn_spectral_deinit_debug(&sc->spec_priv);
1362 }
1363
1364 int ath9k_init_debug(struct ath_hw *ah)
1365 {
1366 struct ath_common *common = ath9k_hw_common(ah);
1367 struct ath_softc *sc = (struct ath_softc *) common->priv;
1368
1369 sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
1370 sc->hw->wiphy->debugfsdir);
1371 if (!sc->debug.debugfs_phy)
1372 return -ENOMEM;
1373
1374 #ifdef CONFIG_ATH_DEBUG
1375 debugfs_create_file("debug", 0600, sc->debug.debugfs_phy,
1376 sc, &fops_debug);
1377 #endif
1378
1379 ath9k_dfs_init_debug(sc);
1380 ath9k_tx99_init_debug(sc);
1381 ath9k_cmn_spectral_init_debug(&sc->spec_priv, sc->debug.debugfs_phy);
1382
1383 debugfs_create_devm_seqfile(sc->dev, "dma", sc->debug.debugfs_phy,
1384 read_file_dma);
1385 debugfs_create_devm_seqfile(sc->dev, "interrupt", sc->debug.debugfs_phy,
1386 read_file_interrupt);
1387 debugfs_create_devm_seqfile(sc->dev, "xmit", sc->debug.debugfs_phy,
1388 read_file_xmit);
1389 debugfs_create_devm_seqfile(sc->dev, "queues", sc->debug.debugfs_phy,
1390 read_file_queues);
1391 debugfs_create_devm_seqfile(sc->dev, "misc", sc->debug.debugfs_phy,
1392 read_file_misc);
1393 debugfs_create_devm_seqfile(sc->dev, "reset", sc->debug.debugfs_phy,
1394 read_file_reset);
1395
1396 ath9k_cmn_debug_recv(sc->debug.debugfs_phy, &sc->debug.stats.rxstats);
1397 ath9k_cmn_debug_phy_err(sc->debug.debugfs_phy, &sc->debug.stats.rxstats);
1398
1399 debugfs_create_u8("rx_chainmask", 0400, sc->debug.debugfs_phy,
1400 &ah->rxchainmask);
1401 debugfs_create_u8("tx_chainmask", 0400, sc->debug.debugfs_phy,
1402 &ah->txchainmask);
1403 debugfs_create_file("ani", 0600,
1404 sc->debug.debugfs_phy, sc, &fops_ani);
1405 debugfs_create_bool("paprd", 0600, sc->debug.debugfs_phy,
1406 &sc->sc_ah->config.enable_paprd);
1407 debugfs_create_file("regidx", 0600, sc->debug.debugfs_phy,
1408 sc, &fops_regidx);
1409 debugfs_create_file("regval", 0600, sc->debug.debugfs_phy,
1410 sc, &fops_regval);
1411 debugfs_create_bool("ignore_extcca", 0600,
1412 sc->debug.debugfs_phy,
1413 &ah->config.cwm_ignore_extcca);
1414 debugfs_create_file("regdump", 0400, sc->debug.debugfs_phy, sc,
1415 &fops_regdump);
1416 debugfs_create_devm_seqfile(sc->dev, "dump_nfcal",
1417 sc->debug.debugfs_phy,
1418 read_file_dump_nfcal);
1419
1420 ath9k_cmn_debug_base_eeprom(sc->debug.debugfs_phy, sc->sc_ah);
1421 ath9k_cmn_debug_modal_eeprom(sc->debug.debugfs_phy, sc->sc_ah);
1422
1423 debugfs_create_u32("gpio_mask", 0600,
1424 sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
1425 debugfs_create_u32("gpio_val", 0600,
1426 sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
1427 debugfs_create_file("antenna_diversity", 0400,
1428 sc->debug.debugfs_phy, sc, &fops_antenna_diversity);
1429 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1430 debugfs_create_file("bt_ant_diversity", 0600,
1431 sc->debug.debugfs_phy, sc, &fops_bt_ant_diversity);
1432 debugfs_create_file("btcoex", 0400, sc->debug.debugfs_phy, sc,
1433 &fops_btcoex);
1434 #endif
1435
1436 #ifdef CONFIG_ATH9K_WOW
1437 debugfs_create_file("wow", 0600, sc->debug.debugfs_phy, sc, &fops_wow);
1438 #endif
1439
1440 #ifdef CONFIG_ATH9K_DYNACK
1441 debugfs_create_file("ack_to", 0400, sc->debug.debugfs_phy,
1442 sc, &fops_ackto);
1443 #endif
1444 debugfs_create_file("tpc", 0600, sc->debug.debugfs_phy, sc, &fops_tpc);
1445
1446 debugfs_create_file("nf_override", 0600,
1447 sc->debug.debugfs_phy, sc, &fops_nf_override);
1448
1449 return 0;
1450 }
Linux with added FPC-III support