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
ath9k_debug_sync_cause(struct ath_softc * sc,u32 sync_cause)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
ath9k_debugfs_read_buf(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)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
ath9k_debugfs_release_buf(struct inode * inode,struct file * file)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
read_file_debug(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)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
write_file_debug(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)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 ssize_t ret;
105
106 ret = kstrtoul_from_user(user_buf, count, 0, &mask);
107 if (ret)
108 return ret;
109
110 common->debug_mask = mask;
111 return count;
112 }
113
114 static const struct file_operations fops_debug = {
115 .read = read_file_debug,
116 .write = write_file_debug,
117 .open = simple_open,
118 .owner = THIS_MODULE,
119 .llseek = default_llseek,
120 };
121
122 #endif
123
124 #define DMA_BUF_LEN 1024
125
126
read_file_ani(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)127 static ssize_t read_file_ani(struct file *file, char __user *user_buf,
128 size_t count, loff_t *ppos)
129 {
130 struct ath_softc *sc = file->private_data;
131 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
132 struct ath_hw *ah = sc->sc_ah;
133 unsigned int len = 0;
134 const unsigned int size = 1024;
135 ssize_t retval = 0;
136 char *buf;
137 int i;
138 struct {
139 const char *name;
140 unsigned int val;
141 } ani_info[] = {
142 { "ANI RESET", ah->stats.ast_ani_reset },
143 { "OFDM LEVEL", ah->ani.ofdmNoiseImmunityLevel },
144 { "CCK LEVEL", ah->ani.cckNoiseImmunityLevel },
145 { "SPUR UP", ah->stats.ast_ani_spurup },
146 { "SPUR DOWN", ah->stats.ast_ani_spurdown },
147 { "OFDM WS-DET ON", ah->stats.ast_ani_ofdmon },
148 { "OFDM WS-DET OFF", ah->stats.ast_ani_ofdmoff },
149 { "MRC-CCK ON", ah->stats.ast_ani_ccklow },
150 { "MRC-CCK OFF", ah->stats.ast_ani_cckhigh },
151 { "FIR-STEP UP", ah->stats.ast_ani_stepup },
152 { "FIR-STEP DOWN", ah->stats.ast_ani_stepdown },
153 { "INV LISTENTIME", ah->stats.ast_ani_lneg_or_lzero },
154 { "OFDM ERRORS", ah->stats.ast_ani_ofdmerrs },
155 { "CCK ERRORS", ah->stats.ast_ani_cckerrs },
156 };
157
158 buf = kzalloc(size, GFP_KERNEL);
159 if (buf == NULL)
160 return -ENOMEM;
161
162 len += scnprintf(buf + len, size - len, "%15s: %s\n", "ANI",
163 common->disable_ani ? "DISABLED" : "ENABLED");
164
165 if (common->disable_ani)
166 goto exit;
167
168 for (i = 0; i < ARRAY_SIZE(ani_info); i++)
169 len += scnprintf(buf + len, size - len, "%15s: %u\n",
170 ani_info[i].name, ani_info[i].val);
171
172 exit:
173 if (len > size)
174 len = size;
175
176 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
177 kfree(buf);
178
179 return retval;
180 }
181
write_file_ani(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)182 static ssize_t write_file_ani(struct file *file,
183 const char __user *user_buf,
184 size_t count, loff_t *ppos)
185 {
186 struct ath_softc *sc = file->private_data;
187 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
188 unsigned long ani;
189 ssize_t ret;
190
191 ret = kstrtoul_from_user(user_buf, count, 0, &ani);
192 if (ret)
193 return ret;
194
195 if (ani > 1)
196 return -EINVAL;
197
198 common->disable_ani = !ani;
199
200 if (common->disable_ani) {
201 clear_bit(ATH_OP_ANI_RUN, &common->op_flags);
202 ath_stop_ani(sc);
203 } else {
204 ath_check_ani(sc);
205 }
206
207 return count;
208 }
209
210 static const struct file_operations fops_ani = {
211 .read = read_file_ani,
212 .write = write_file_ani,
213 .open = simple_open,
214 .owner = THIS_MODULE,
215 .llseek = default_llseek,
216 };
217
218 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
219
read_file_bt_ant_diversity(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)220 static ssize_t read_file_bt_ant_diversity(struct file *file,
221 char __user *user_buf,
222 size_t count, loff_t *ppos)
223 {
224 struct ath_softc *sc = file->private_data;
225 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
226 char buf[32];
227 unsigned int len;
228
229 len = sprintf(buf, "%d\n", common->bt_ant_diversity);
230 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
231 }
232
write_file_bt_ant_diversity(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)233 static ssize_t write_file_bt_ant_diversity(struct file *file,
234 const char __user *user_buf,
235 size_t count, loff_t *ppos)
236 {
237 struct ath_softc *sc = file->private_data;
238 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
239 struct ath9k_hw_capabilities *pCap = &sc->sc_ah->caps;
240 unsigned long bt_ant_diversity;
241 ssize_t ret;
242
243 ret = kstrtoul_from_user(user_buf, count, 0, &bt_ant_diversity);
244 if (ret)
245 return ret;
246
247 if (!(pCap->hw_caps & ATH9K_HW_CAP_BT_ANT_DIV))
248 goto exit;
249
250 common->bt_ant_diversity = !!bt_ant_diversity;
251 ath9k_ps_wakeup(sc);
252 ath9k_hw_set_bt_ant_diversity(sc->sc_ah, common->bt_ant_diversity);
253 ath_dbg(common, CONFIG, "Enable WLAN/BT RX Antenna diversity: %d\n",
254 common->bt_ant_diversity);
255 ath9k_ps_restore(sc);
256 exit:
257 return count;
258 }
259
260 static const struct file_operations fops_bt_ant_diversity = {
261 .read = read_file_bt_ant_diversity,
262 .write = write_file_bt_ant_diversity,
263 .open = simple_open,
264 .owner = THIS_MODULE,
265 .llseek = default_llseek,
266 };
267
268 #endif
269
ath9k_debug_stat_ant(struct ath_softc * sc,struct ath_hw_antcomb_conf * div_ant_conf,int main_rssi_avg,int alt_rssi_avg)270 void ath9k_debug_stat_ant(struct ath_softc *sc,
271 struct ath_hw_antcomb_conf *div_ant_conf,
272 int main_rssi_avg, int alt_rssi_avg)
273 {
274 struct ath_antenna_stats *as_main = &sc->debug.stats.ant_stats[ANT_MAIN];
275 struct ath_antenna_stats *as_alt = &sc->debug.stats.ant_stats[ANT_ALT];
276
277 as_main->lna_attempt_cnt[div_ant_conf->main_lna_conf]++;
278 as_alt->lna_attempt_cnt[div_ant_conf->alt_lna_conf]++;
279
280 as_main->rssi_avg = main_rssi_avg;
281 as_alt->rssi_avg = alt_rssi_avg;
282 }
283
read_file_antenna_diversity(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)284 static ssize_t read_file_antenna_diversity(struct file *file,
285 char __user *user_buf,
286 size_t count, loff_t *ppos)
287 {
288 struct ath_softc *sc = file->private_data;
289 struct ath_hw *ah = sc->sc_ah;
290 struct ath9k_hw_capabilities *pCap = &ah->caps;
291 struct ath_antenna_stats *as_main = &sc->debug.stats.ant_stats[ANT_MAIN];
292 struct ath_antenna_stats *as_alt = &sc->debug.stats.ant_stats[ANT_ALT];
293 struct ath_hw_antcomb_conf div_ant_conf;
294 unsigned int len = 0;
295 const unsigned int size = 1024;
296 ssize_t retval = 0;
297 char *buf;
298 static const char *lna_conf_str[4] = {
299 "LNA1_MINUS_LNA2", "LNA2", "LNA1", "LNA1_PLUS_LNA2"
300 };
301
302 buf = kzalloc(size, GFP_KERNEL);
303 if (buf == NULL)
304 return -ENOMEM;
305
306 if (!(pCap->hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB)) {
307 len += scnprintf(buf + len, size - len, "%s\n",
308 "Antenna Diversity Combining is disabled");
309 goto exit;
310 }
311
312 ath9k_ps_wakeup(sc);
313 ath9k_hw_antdiv_comb_conf_get(ah, &div_ant_conf);
314 len += scnprintf(buf + len, size - len, "Current MAIN config : %s\n",
315 lna_conf_str[div_ant_conf.main_lna_conf]);
316 len += scnprintf(buf + len, size - len, "Current ALT config : %s\n",
317 lna_conf_str[div_ant_conf.alt_lna_conf]);
318 len += scnprintf(buf + len, size - len, "Average MAIN RSSI : %d\n",
319 as_main->rssi_avg);
320 len += scnprintf(buf + len, size - len, "Average ALT RSSI : %d\n\n",
321 as_alt->rssi_avg);
322 ath9k_ps_restore(sc);
323
324 len += scnprintf(buf + len, size - len, "Packet Receive Cnt:\n");
325 len += scnprintf(buf + len, size - len, "-------------------\n");
326
327 len += scnprintf(buf + len, size - len, "%30s%15s\n",
328 "MAIN", "ALT");
329 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
330 "TOTAL COUNT",
331 as_main->recv_cnt,
332 as_alt->recv_cnt);
333 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
334 "LNA1",
335 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1],
336 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1]);
337 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
338 "LNA2",
339 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2],
340 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2]);
341 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
342 "LNA1 + LNA2",
343 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
344 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]);
345 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
346 "LNA1 - LNA2",
347 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
348 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
349
350 len += scnprintf(buf + len, size - len, "\nLNA Config Attempts:\n");
351 len += scnprintf(buf + len, size - len, "--------------------\n");
352
353 len += scnprintf(buf + len, size - len, "%30s%15s\n",
354 "MAIN", "ALT");
355 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
356 "LNA1",
357 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1],
358 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1]);
359 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
360 "LNA2",
361 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2],
362 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2]);
363 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
364 "LNA1 + LNA2",
365 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
366 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]);
367 len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
368 "LNA1 - LNA2",
369 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
370 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
371
372 exit:
373 if (len > size)
374 len = size;
375
376 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
377 kfree(buf);
378
379 return retval;
380 }
381
382 static const struct file_operations fops_antenna_diversity = {
383 .read = read_file_antenna_diversity,
384 .open = simple_open,
385 .owner = THIS_MODULE,
386 .llseek = default_llseek,
387 };
388
read_file_dma(struct seq_file * file,void * data)389 static int read_file_dma(struct seq_file *file, void *data)
390 {
391 struct ieee80211_hw *hw = dev_get_drvdata(file->private);
392 struct ath_softc *sc = hw->priv;
393 struct ath_hw *ah = sc->sc_ah;
394 u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
395 int i, qcuOffset = 0, dcuOffset = 0;
396 u32 *qcuBase = &val[0], *dcuBase = &val[4];
397
398 ath9k_ps_wakeup(sc);
399
400 REG_WRITE_D(ah, AR_MACMISC,
401 ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
402 (AR_MACMISC_MISC_OBS_BUS_1 <<
403 AR_MACMISC_MISC_OBS_BUS_MSB_S)));
404
405 seq_puts(file, "Raw DMA Debug values:\n");
406
407 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
408 if (i % 4 == 0)
409 seq_puts(file, "\n");
410
411 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
412 seq_printf(file, "%d: %08x ", i, val[i]);
413 }
414
415 seq_puts(file, "\n\n");
416 seq_puts(file, "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
417
418 for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
419 if (i == 8) {
420 qcuOffset = 0;
421 qcuBase++;
422 }
423
424 if (i == 6) {
425 dcuOffset = 0;
426 dcuBase++;
427 }
428
429 seq_printf(file, "%2d %2x %1x %2x %2x\n",
430 i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
431 (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
432 (val[2] & (0x7 << (i * 3))) >> (i * 3),
433 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
434 }
435
436 seq_puts(file, "\n");
437
438 seq_printf(file, "qcu_stitch state: %2x qcu_fetch state: %2x\n",
439 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
440 seq_printf(file, "qcu_complete state: %2x dcu_complete state: %2x\n",
441 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
442 seq_printf(file, "dcu_arb state: %2x dcu_fp state: %2x\n",
443 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
444 seq_printf(file, "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
445 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
446 seq_printf(file, "txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
447 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
448 seq_printf(file, "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
449 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
450
451 seq_printf(file, "pcu observe: 0x%x\n", REG_READ_D(ah, AR_OBS_BUS_1));
452 seq_printf(file, "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
453
454 ath9k_ps_restore(sc);
455
456 return 0;
457 }
458
ath_debug_stat_interrupt(struct ath_softc * sc,enum ath9k_int status)459 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
460 {
461 if (status)
462 sc->debug.stats.istats.total++;
463 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
464 if (status & ATH9K_INT_RXLP)
465 sc->debug.stats.istats.rxlp++;
466 if (status & ATH9K_INT_RXHP)
467 sc->debug.stats.istats.rxhp++;
468 if (status & ATH9K_INT_BB_WATCHDOG)
469 sc->debug.stats.istats.bb_watchdog++;
470 } else {
471 if (status & ATH9K_INT_RX)
472 sc->debug.stats.istats.rxok++;
473 }
474 if (status & ATH9K_INT_RXEOL)
475 sc->debug.stats.istats.rxeol++;
476 if (status & ATH9K_INT_RXORN)
477 sc->debug.stats.istats.rxorn++;
478 if (status & ATH9K_INT_TX)
479 sc->debug.stats.istats.txok++;
480 if (status & ATH9K_INT_TXURN)
481 sc->debug.stats.istats.txurn++;
482 if (status & ATH9K_INT_RXPHY)
483 sc->debug.stats.istats.rxphyerr++;
484 if (status & ATH9K_INT_RXKCM)
485 sc->debug.stats.istats.rx_keycache_miss++;
486 if (status & ATH9K_INT_SWBA)
487 sc->debug.stats.istats.swba++;
488 if (status & ATH9K_INT_BMISS)
489 sc->debug.stats.istats.bmiss++;
490 if (status & ATH9K_INT_BNR)
491 sc->debug.stats.istats.bnr++;
492 if (status & ATH9K_INT_CST)
493 sc->debug.stats.istats.cst++;
494 if (status & ATH9K_INT_GTT)
495 sc->debug.stats.istats.gtt++;
496 if (status & ATH9K_INT_TIM)
497 sc->debug.stats.istats.tim++;
498 if (status & ATH9K_INT_CABEND)
499 sc->debug.stats.istats.cabend++;
500 if (status & ATH9K_INT_DTIMSYNC)
501 sc->debug.stats.istats.dtimsync++;
502 if (status & ATH9K_INT_DTIM)
503 sc->debug.stats.istats.dtim++;
504 if (status & ATH9K_INT_TSFOOR)
505 sc->debug.stats.istats.tsfoor++;
506 if (status & ATH9K_INT_MCI)
507 sc->debug.stats.istats.mci++;
508 if (status & ATH9K_INT_GENTIMER)
509 sc->debug.stats.istats.gen_timer++;
510 }
511
read_file_interrupt(struct seq_file * file,void * data)512 static int read_file_interrupt(struct seq_file *file, void *data)
513 {
514 struct ieee80211_hw *hw = dev_get_drvdata(file->private);
515 struct ath_softc *sc = hw->priv;
516
517 #define PR_IS(a, s) \
518 do { \
519 seq_printf(file, "%21s: %10u\n", a, \
520 sc->debug.stats.istats.s); \
521 } while (0)
522
523 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
524 PR_IS("RXLP", rxlp);
525 PR_IS("RXHP", rxhp);
526 PR_IS("WATCHDOG", bb_watchdog);
527 } else {
528 PR_IS("RX", rxok);
529 }
530 PR_IS("RXEOL", rxeol);
531 PR_IS("RXORN", rxorn);
532 PR_IS("TX", txok);
533 PR_IS("TXURN", txurn);
534 PR_IS("MIB", mib);
535 PR_IS("RXPHY", rxphyerr);
536 PR_IS("RXKCM", rx_keycache_miss);
537 PR_IS("SWBA", swba);
538 PR_IS("BMISS", bmiss);
539 PR_IS("BNR", bnr);
540 PR_IS("CST", cst);
541 PR_IS("GTT", gtt);
542 PR_IS("TIM", tim);
543 PR_IS("CABEND", cabend);
544 PR_IS("DTIMSYNC", dtimsync);
545 PR_IS("DTIM", dtim);
546 PR_IS("TSFOOR", tsfoor);
547 PR_IS("MCI", mci);
548 PR_IS("GENTIMER", gen_timer);
549 PR_IS("TOTAL", total);
550
551 seq_puts(file, "SYNC_CAUSE stats:\n");
552
553 PR_IS("Sync-All", sync_cause_all);
554 PR_IS("RTC-IRQ", sync_rtc_irq);
555 PR_IS("MAC-IRQ", sync_mac_irq);
556 PR_IS("EEPROM-Illegal-Access", eeprom_illegal_access);
557 PR_IS("APB-Timeout", apb_timeout);
558 PR_IS("PCI-Mode-Conflict", pci_mode_conflict);
559 PR_IS("HOST1-Fatal", host1_fatal);
560 PR_IS("HOST1-Perr", host1_perr);
561 PR_IS("TRCV-FIFO-Perr", trcv_fifo_perr);
562 PR_IS("RADM-CPL-EP", radm_cpl_ep);
563 PR_IS("RADM-CPL-DLLP-Abort", radm_cpl_dllp_abort);
564 PR_IS("RADM-CPL-TLP-Abort", radm_cpl_tlp_abort);
565 PR_IS("RADM-CPL-ECRC-Err", radm_cpl_ecrc_err);
566 PR_IS("RADM-CPL-Timeout", radm_cpl_timeout);
567 PR_IS("Local-Bus-Timeout", local_timeout);
568 PR_IS("PM-Access", pm_access);
569 PR_IS("MAC-Awake", mac_awake);
570 PR_IS("MAC-Asleep", mac_asleep);
571 PR_IS("MAC-Sleep-Access", mac_sleep_access);
572
573 return 0;
574 }
575
read_file_xmit(struct seq_file * file,void * data)576 static int read_file_xmit(struct seq_file *file, void *data)
577 {
578 struct ieee80211_hw *hw = dev_get_drvdata(file->private);
579 struct ath_softc *sc = hw->priv;
580
581 seq_printf(file, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
582
583 PR("MPDUs Queued: ", queued);
584 PR("MPDUs Completed: ", completed);
585 PR("MPDUs XRetried: ", xretries);
586 PR("Aggregates: ", a_aggr);
587 PR("AMPDUs Queued HW:", a_queued_hw);
588 PR("AMPDUs Completed:", a_completed);
589 PR("AMPDUs Retried: ", a_retries);
590 PR("AMPDUs XRetried: ", a_xretries);
591 PR("TXERR Filtered: ", txerr_filtered);
592 PR("FIFO Underrun: ", fifo_underrun);
593 PR("TXOP Exceeded: ", xtxop);
594 PR("TXTIMER Expiry: ", timer_exp);
595 PR("DESC CFG Error: ", desc_cfg_err);
596 PR("DATA Underrun: ", data_underrun);
597 PR("DELIM Underrun: ", delim_underrun);
598 PR("TX-Pkts-All: ", tx_pkts_all);
599 PR("TX-Bytes-All: ", tx_bytes_all);
600 PR("HW-put-tx-buf: ", puttxbuf);
601 PR("HW-tx-start: ", txstart);
602 PR("HW-tx-proc-desc: ", txprocdesc);
603 PR("TX-Failed: ", txfailed);
604
605 return 0;
606 }
607
print_queue(struct ath_softc * sc,struct ath_txq * txq,struct seq_file * file)608 static void print_queue(struct ath_softc *sc, struct ath_txq *txq,
609 struct seq_file *file)
610 {
611 ath_txq_lock(sc, txq);
612
613 seq_printf(file, "%s: %d ", "qnum", txq->axq_qnum);
614 seq_printf(file, "%s: %2d ", "qdepth", txq->axq_depth);
615 seq_printf(file, "%s: %2d ", "ampdu-depth", txq->axq_ampdu_depth);
616 seq_printf(file, "%s: %3d\n", "pending", txq->pending_frames);
617
618 ath_txq_unlock(sc, txq);
619 }
620
read_file_queues(struct seq_file * file,void * data)621 static int read_file_queues(struct seq_file *file, void *data)
622 {
623 struct ieee80211_hw *hw = dev_get_drvdata(file->private);
624 struct ath_softc *sc = hw->priv;
625 struct ath_txq *txq;
626 int i;
627 static const char *qname[4] = {
628 "VO", "VI", "BE", "BK"
629 };
630
631 for (i = 0; i < IEEE80211_NUM_ACS; i++) {
632 txq = sc->tx.txq_map[i];
633 seq_printf(file, "(%s): ", qname[i]);
634 print_queue(sc, txq, file);
635 }
636
637 seq_puts(file, "(CAB): ");
638 print_queue(sc, sc->beacon.cabq, file);
639
640 return 0;
641 }
642
read_file_misc(struct seq_file * file,void * data)643 static int read_file_misc(struct seq_file *file, void *data)
644 {
645 struct ieee80211_hw *hw = dev_get_drvdata(file->private);
646 struct ath_softc *sc = hw->priv;
647 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
648 struct ath9k_vif_iter_data iter_data;
649 struct ath_chanctx *ctx;
650 unsigned int reg;
651 u32 rxfilter, i;
652
653 seq_printf(file, "BSSID: %pM\n", common->curbssid);
654 seq_printf(file, "BSSID-MASK: %pM\n", common->bssidmask);
655 seq_printf(file, "OPMODE: %s\n",
656 ath_opmode_to_string(sc->sc_ah->opmode));
657
658 ath9k_ps_wakeup(sc);
659 rxfilter = ath9k_hw_getrxfilter(sc->sc_ah);
660 ath9k_ps_restore(sc);
661
662 seq_printf(file, "RXFILTER: 0x%x", rxfilter);
663
664 if (rxfilter & ATH9K_RX_FILTER_UCAST)
665 seq_puts(file, " UCAST");
666 if (rxfilter & ATH9K_RX_FILTER_MCAST)
667 seq_puts(file, " MCAST");
668 if (rxfilter & ATH9K_RX_FILTER_BCAST)
669 seq_puts(file, " BCAST");
670 if (rxfilter & ATH9K_RX_FILTER_CONTROL)
671 seq_puts(file, " CONTROL");
672 if (rxfilter & ATH9K_RX_FILTER_BEACON)
673 seq_puts(file, " BEACON");
674 if (rxfilter & ATH9K_RX_FILTER_PROM)
675 seq_puts(file, " PROM");
676 if (rxfilter & ATH9K_RX_FILTER_PROBEREQ)
677 seq_puts(file, " PROBEREQ");
678 if (rxfilter & ATH9K_RX_FILTER_PHYERR)
679 seq_puts(file, " PHYERR");
680 if (rxfilter & ATH9K_RX_FILTER_MYBEACON)
681 seq_puts(file, " MYBEACON");
682 if (rxfilter & ATH9K_RX_FILTER_COMP_BAR)
683 seq_puts(file, " COMP_BAR");
684 if (rxfilter & ATH9K_RX_FILTER_PSPOLL)
685 seq_puts(file, " PSPOLL");
686 if (rxfilter & ATH9K_RX_FILTER_PHYRADAR)
687 seq_puts(file, " PHYRADAR");
688 if (rxfilter & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
689 seq_puts(file, " MCAST_BCAST_ALL");
690 if (rxfilter & ATH9K_RX_FILTER_CONTROL_WRAPPER)
691 seq_puts(file, " CONTROL_WRAPPER");
692
693 seq_puts(file, "\n");
694
695 reg = sc->sc_ah->imask;
696
697 seq_printf(file, "INTERRUPT-MASK: 0x%x", reg);
698
699 if (reg & ATH9K_INT_SWBA)
700 seq_puts(file, " SWBA");
701 if (reg & ATH9K_INT_BMISS)
702 seq_puts(file, " BMISS");
703 if (reg & ATH9K_INT_CST)
704 seq_puts(file, " CST");
705 if (reg & ATH9K_INT_RX)
706 seq_puts(file, " RX");
707 if (reg & ATH9K_INT_RXHP)
708 seq_puts(file, " RXHP");
709 if (reg & ATH9K_INT_RXLP)
710 seq_puts(file, " RXLP");
711 if (reg & ATH9K_INT_BB_WATCHDOG)
712 seq_puts(file, " BB_WATCHDOG");
713
714 seq_puts(file, "\n");
715
716 i = 0;
717 ath_for_each_chanctx(sc, ctx) {
718 if (list_empty(&ctx->vifs))
719 continue;
720 ath9k_calculate_iter_data(sc, ctx, &iter_data);
721
722 seq_printf(file,
723 "VIFS: CTX %i(%i) AP: %i STA: %i MESH: %i",
724 i++, (int)(ctx->assigned), iter_data.naps,
725 iter_data.nstations,
726 iter_data.nmeshes);
727 seq_printf(file, " ADHOC: %i OCB: %i TOTAL: %hi BEACON-VIF: %hi\n",
728 iter_data.nadhocs, iter_data.nocbs, sc->cur_chan->nvifs,
729 sc->nbcnvifs);
730 }
731
732 return 0;
733 }
734
read_file_reset(struct seq_file * file,void * data)735 static int read_file_reset(struct seq_file *file, void *data)
736 {
737 struct ath_softc *sc = file->private;
738 static const char * const reset_cause[__RESET_TYPE_MAX] = {
739 [RESET_TYPE_USER] = "User reset",
740 [RESET_TYPE_BB_HANG] = "Baseband Hang",
741 [RESET_TYPE_BB_WATCHDOG] = "Baseband Watchdog",
742 [RESET_TYPE_FATAL_INT] = "Fatal HW Error",
743 [RESET_TYPE_TX_ERROR] = "TX HW error",
744 [RESET_TYPE_TX_GTT] = "Transmit timeout",
745 [RESET_TYPE_TX_HANG] = "TX Path Hang",
746 [RESET_TYPE_PLL_HANG] = "PLL RX Hang",
747 [RESET_TYPE_MAC_HANG] = "MAC Hang",
748 [RESET_TYPE_BEACON_STUCK] = "Stuck Beacon",
749 [RESET_TYPE_MCI] = "MCI Reset",
750 [RESET_TYPE_CALIBRATION] = "Calibration error",
751 [RESET_TX_DMA_ERROR] = "Tx DMA stop error",
752 [RESET_RX_DMA_ERROR] = "Rx DMA stop error",
753 };
754 int i;
755
756 for (i = 0; i < ARRAY_SIZE(reset_cause); i++) {
757 if (!reset_cause[i])
758 continue;
759
760 seq_printf(file, "%17s: %2d\n", reset_cause[i],
761 sc->debug.stats.reset[i]);
762 }
763
764 return 0;
765 }
766
open_file_reset(struct inode * inode,struct file * f)767 static int open_file_reset(struct inode *inode, struct file *f)
768 {
769 return single_open(f, read_file_reset, inode->i_private);
770 }
771
write_file_reset(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)772 static ssize_t write_file_reset(struct file *file,
773 const char __user *user_buf,
774 size_t count, loff_t *ppos)
775 {
776 struct ath_softc *sc = file_inode(file)->i_private;
777 struct ath_hw *ah = sc->sc_ah;
778 struct ath_common *common = ath9k_hw_common(ah);
779 unsigned long val;
780 ssize_t ret;
781
782 ret = kstrtoul_from_user(user_buf, count, 0, &val);
783 if (ret)
784 return ret;
785
786 if (val != 1)
787 return -EINVAL;
788
789 /* avoid rearming hw_reset_work on shutdown */
790 mutex_lock(&sc->mutex);
791 if (test_bit(ATH_OP_INVALID, &common->op_flags)) {
792 mutex_unlock(&sc->mutex);
793 return -EBUSY;
794 }
795
796 ath9k_queue_reset(sc, RESET_TYPE_USER);
797 mutex_unlock(&sc->mutex);
798
799 return count;
800 }
801
802 static const struct file_operations fops_reset = {
803 .read = seq_read,
804 .write = write_file_reset,
805 .open = open_file_reset,
806 .owner = THIS_MODULE,
807 .llseek = seq_lseek,
808 .release = single_release,
809 };
810
ath_debug_stat_tx(struct ath_softc * sc,struct ath_buf * bf,struct ath_tx_status * ts,struct ath_txq * txq,unsigned int flags)811 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
812 struct ath_tx_status *ts, struct ath_txq *txq,
813 unsigned int flags)
814 {
815 int qnum = txq->axq_qnum;
816
817 TX_STAT_INC(sc, qnum, tx_pkts_all);
818 sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
819
820 if (bf_isampdu(bf)) {
821 if (flags & ATH_TX_ERROR)
822 TX_STAT_INC(sc, qnum, a_xretries);
823 else
824 TX_STAT_INC(sc, qnum, a_completed);
825 } else {
826 if (ts->ts_status & ATH9K_TXERR_XRETRY)
827 TX_STAT_INC(sc, qnum, xretries);
828 else
829 TX_STAT_INC(sc, qnum, completed);
830 }
831
832 if (ts->ts_status & ATH9K_TXERR_FILT)
833 TX_STAT_INC(sc, qnum, txerr_filtered);
834 if (ts->ts_status & ATH9K_TXERR_FIFO)
835 TX_STAT_INC(sc, qnum, fifo_underrun);
836 if (ts->ts_status & ATH9K_TXERR_XTXOP)
837 TX_STAT_INC(sc, qnum, xtxop);
838 if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
839 TX_STAT_INC(sc, qnum, timer_exp);
840 if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
841 TX_STAT_INC(sc, qnum, desc_cfg_err);
842 if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
843 TX_STAT_INC(sc, qnum, data_underrun);
844 if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
845 TX_STAT_INC(sc, qnum, delim_underrun);
846 }
847
ath_debug_stat_rx(struct ath_softc * sc,struct ath_rx_status * rs)848 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
849 {
850 ath9k_cmn_debug_stat_rx(&sc->debug.stats.rxstats, rs);
851 }
852
read_file_regidx(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)853 static 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
860 len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
861 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
862 }
863
write_file_regidx(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)864 static 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 ssize_t ret;
870
871 ret = kstrtoul_from_user(user_buf, count, 0, ®idx);
872 if (ret)
873 return ret;
874
875 sc->debug.regidx = regidx;
876 return count;
877 }
878
879 static const struct file_operations fops_regidx = {
880 .read = read_file_regidx,
881 .write = write_file_regidx,
882 .open = simple_open,
883 .owner = THIS_MODULE,
884 .llseek = default_llseek,
885 };
886
read_file_regval(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)887 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
888 size_t count, loff_t *ppos)
889 {
890 struct ath_softc *sc = file->private_data;
891 struct ath_hw *ah = sc->sc_ah;
892 char buf[32];
893 unsigned int len;
894 u32 regval;
895
896 ath9k_ps_wakeup(sc);
897 regval = REG_READ_D(ah, sc->debug.regidx);
898 ath9k_ps_restore(sc);
899 len = sprintf(buf, "0x%08x\n", regval);
900 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
901 }
902
write_file_regval(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)903 static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
904 size_t count, loff_t *ppos)
905 {
906 struct ath_softc *sc = file->private_data;
907 struct ath_hw *ah = sc->sc_ah;
908 unsigned long regval;
909 ssize_t ret;
910
911 ret = kstrtoul_from_user(user_buf, count, 0, ®val);
912 if (ret)
913 return ret;
914
915 ath9k_ps_wakeup(sc);
916 REG_WRITE_D(ah, sc->debug.regidx, regval);
917 ath9k_ps_restore(sc);
918 return count;
919 }
920
921 static const struct file_operations fops_regval = {
922 .read = read_file_regval,
923 .write = write_file_regval,
924 .open = simple_open,
925 .owner = THIS_MODULE,
926 .llseek = default_llseek,
927 };
928
929 #define REGDUMP_LINE_SIZE 20
930
open_file_regdump(struct inode * inode,struct file * file)931 static int open_file_regdump(struct inode *inode, struct file *file)
932 {
933 struct ath_softc *sc = inode->i_private;
934 unsigned int len = 0;
935 u8 *buf;
936 int i, j = 0;
937 unsigned long num_regs, regdump_len, max_reg_offset;
938 static const struct reg_hole {
939 u32 start;
940 u32 end;
941 } reg_hole_list[] = {
942 {0x0200, 0x07fc},
943 {0x0c00, 0x0ffc},
944 {0x2000, 0x3ffc},
945 {0x4100, 0x6ffc},
946 {0x705c, 0x7ffc},
947 {0x0000, 0x0000}
948 };
949
950 max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x8800 : 0xb500;
951 num_regs = max_reg_offset / 4 + 1;
952 regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
953 buf = vmalloc(regdump_len);
954 if (!buf)
955 return -ENOMEM;
956
957 ath9k_ps_wakeup(sc);
958 for (i = 0; i < num_regs; i++) {
959 if (reg_hole_list[j].start == i << 2) {
960 i = reg_hole_list[j].end >> 2;
961 j++;
962 continue;
963 }
964
965 len += scnprintf(buf + len, regdump_len - len,
966 "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
967 }
968 ath9k_ps_restore(sc);
969
970 file->private_data = buf;
971
972 return 0;
973 }
974
975 static const struct file_operations fops_regdump = {
976 .open = open_file_regdump,
977 .read = ath9k_debugfs_read_buf,
978 .release = ath9k_debugfs_release_buf,
979 .owner = THIS_MODULE,
980 .llseek = default_llseek,/* read accesses f_pos */
981 };
982
read_file_dump_nfcal(struct seq_file * file,void * data)983 static int read_file_dump_nfcal(struct seq_file *file, void *data)
984 {
985 struct ieee80211_hw *hw = dev_get_drvdata(file->private);
986 struct ath_softc *sc = hw->priv;
987 struct ath_hw *ah = sc->sc_ah;
988 struct ath9k_nfcal_hist *h = sc->cur_chan->caldata.nfCalHist;
989 struct ath_common *common = ath9k_hw_common(ah);
990 struct ieee80211_conf *conf = &common->hw->conf;
991 u32 i, j;
992 u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
993 u8 nread;
994
995 seq_printf(file, "Channel Noise Floor : %d\n", ah->noise);
996 seq_puts(file, "Chain | privNF | # Readings | NF Readings\n");
997 for (i = 0; i < NUM_NF_READINGS; i++) {
998 if (!(chainmask & (1 << i)) ||
999 ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
1000 continue;
1001
1002 nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount;
1003 seq_printf(file, " %d\t %d\t %d\t\t", i, h[i].privNF, nread);
1004 for (j = 0; j < nread; j++)
1005 seq_printf(file, " %d", h[i].nfCalBuffer[j]);
1006 seq_puts(file, "\n");
1007 }
1008
1009 return 0;
1010 }
1011
1012 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
read_file_btcoex(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1013 static ssize_t read_file_btcoex(struct file *file, char __user *user_buf,
1014 size_t count, loff_t *ppos)
1015 {
1016 struct ath_softc *sc = file->private_data;
1017 u32 len = 0, size = 1500;
1018 char *buf;
1019 size_t retval;
1020
1021 buf = kzalloc(size, GFP_KERNEL);
1022 if (buf == NULL)
1023 return -ENOMEM;
1024
1025 if (!sc->sc_ah->common.btcoex_enabled) {
1026 len = scnprintf(buf, size, "%s\n",
1027 "BTCOEX is disabled");
1028 goto exit;
1029 }
1030
1031 len = ath9k_dump_btcoex(sc, buf, size);
1032 exit:
1033 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1034 kfree(buf);
1035
1036 return retval;
1037 }
1038
1039 static const struct file_operations fops_btcoex = {
1040 .read = read_file_btcoex,
1041 .open = simple_open,
1042 .owner = THIS_MODULE,
1043 .llseek = default_llseek,
1044 };
1045 #endif
1046
1047 #ifdef CONFIG_ATH9K_DYNACK
read_file_ackto(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1048 static ssize_t read_file_ackto(struct file *file, char __user *user_buf,
1049 size_t count, loff_t *ppos)
1050 {
1051 struct ath_softc *sc = file->private_data;
1052 struct ath_hw *ah = sc->sc_ah;
1053 char buf[32];
1054 unsigned int len;
1055
1056 len = sprintf(buf, "%u %c\n", ah->dynack.ackto,
1057 (ah->dynack.enabled) ? 'A' : 'S');
1058
1059 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1060 }
1061
1062 static const struct file_operations fops_ackto = {
1063 .read = read_file_ackto,
1064 .open = simple_open,
1065 .owner = THIS_MODULE,
1066 .llseek = default_llseek,
1067 };
1068 #endif
1069
1070 #ifdef CONFIG_ATH9K_WOW
1071
read_file_wow(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1072 static ssize_t read_file_wow(struct file *file, char __user *user_buf,
1073 size_t count, loff_t *ppos)
1074 {
1075 struct ath_softc *sc = file->private_data;
1076 unsigned int len = 0, size = 32;
1077 ssize_t retval;
1078 char *buf;
1079
1080 buf = kzalloc(size, GFP_KERNEL);
1081 if (!buf)
1082 return -ENOMEM;
1083
1084 len += scnprintf(buf + len, size - len, "WOW: %s\n",
1085 sc->force_wow ? "ENABLED" : "DISABLED");
1086
1087 if (len > size)
1088 len = size;
1089
1090 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1091 kfree(buf);
1092
1093 return retval;
1094 }
1095
write_file_wow(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1096 static ssize_t write_file_wow(struct file *file, const char __user *user_buf,
1097 size_t count, loff_t *ppos)
1098 {
1099 struct ath_softc *sc = file->private_data;
1100 unsigned long val;
1101 ssize_t ret;
1102
1103 ret = kstrtoul_from_user(user_buf, count, 0, &val);
1104 if (ret)
1105 return ret;
1106
1107 if (val != 1)
1108 return -EINVAL;
1109
1110 if (!sc->force_wow) {
1111 sc->force_wow = true;
1112 ath9k_init_wow(sc->hw);
1113 }
1114
1115 return count;
1116 }
1117
1118 static const struct file_operations fops_wow = {
1119 .read = read_file_wow,
1120 .write = write_file_wow,
1121 .open = simple_open,
1122 .owner = THIS_MODULE,
1123 .llseek = default_llseek,
1124 };
1125
1126 #endif
1127
read_file_tpc(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1128 static ssize_t read_file_tpc(struct file *file, char __user *user_buf,
1129 size_t count, loff_t *ppos)
1130 {
1131 struct ath_softc *sc = file->private_data;
1132 struct ath_hw *ah = sc->sc_ah;
1133 unsigned int len = 0, size = 32;
1134 ssize_t retval;
1135 char *buf;
1136
1137 buf = kzalloc(size, GFP_KERNEL);
1138 if (!buf)
1139 return -ENOMEM;
1140
1141 len += scnprintf(buf + len, size - len, "%s\n",
1142 ah->tpc_enabled ? "ENABLED" : "DISABLED");
1143
1144 if (len > size)
1145 len = size;
1146
1147 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1148 kfree(buf);
1149
1150 return retval;
1151 }
1152
write_file_tpc(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1153 static ssize_t write_file_tpc(struct file *file, const char __user *user_buf,
1154 size_t count, loff_t *ppos)
1155 {
1156 struct ath_softc *sc = file->private_data;
1157 struct ath_hw *ah = sc->sc_ah;
1158 unsigned long val;
1159 ssize_t ret;
1160 bool tpc_enabled;
1161
1162 ret = kstrtoul_from_user(user_buf, count, 0, &val);
1163 if (ret)
1164 return ret;
1165
1166 if (val > 1)
1167 return -EINVAL;
1168
1169 tpc_enabled = !!val;
1170
1171 if (tpc_enabled != ah->tpc_enabled) {
1172 ah->tpc_enabled = tpc_enabled;
1173
1174 mutex_lock(&sc->mutex);
1175 ath9k_set_txpower(sc, NULL);
1176 mutex_unlock(&sc->mutex);
1177 }
1178
1179 return count;
1180 }
1181
1182 static const struct file_operations fops_tpc = {
1183 .read = read_file_tpc,
1184 .write = write_file_tpc,
1185 .open = simple_open,
1186 .owner = THIS_MODULE,
1187 .llseek = default_llseek,
1188 };
1189
read_file_nf_override(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1190 static ssize_t read_file_nf_override(struct file *file,
1191 char __user *user_buf,
1192 size_t count, loff_t *ppos)
1193 {
1194 struct ath_softc *sc = file->private_data;
1195 struct ath_hw *ah = sc->sc_ah;
1196 char buf[32];
1197 unsigned int len;
1198
1199 if (ah->nf_override == 0)
1200 len = sprintf(buf, "off\n");
1201 else
1202 len = sprintf(buf, "%d\n", ah->nf_override);
1203
1204 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1205 }
1206
write_file_nf_override(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1207 static ssize_t write_file_nf_override(struct file *file,
1208 const char __user *user_buf,
1209 size_t count, loff_t *ppos)
1210 {
1211 struct ath_softc *sc = file->private_data;
1212 struct ath_hw *ah = sc->sc_ah;
1213 long val;
1214 char buf[32];
1215 ssize_t len;
1216
1217 len = min(count, sizeof(buf) - 1);
1218 if (copy_from_user(buf, user_buf, len))
1219 return -EFAULT;
1220
1221 buf[len] = '\0';
1222 if (strncmp("off", buf, 3) == 0)
1223 val = 0;
1224 else if (kstrtol(buf, 0, &val))
1225 return -EINVAL;
1226
1227 if (val > 0)
1228 return -EINVAL;
1229
1230 if (val < -120)
1231 return -EINVAL;
1232
1233 ah->nf_override = val;
1234
1235 if (ah->curchan) {
1236 ath9k_ps_wakeup(sc);
1237 ath9k_hw_loadnf(ah, ah->curchan);
1238 ath9k_ps_restore(sc);
1239 }
1240
1241 return count;
1242 }
1243
1244 static const struct file_operations fops_nf_override = {
1245 .read = read_file_nf_override,
1246 .write = write_file_nf_override,
1247 .open = simple_open,
1248 .owner = THIS_MODULE,
1249 .llseek = default_llseek,
1250 };
1251
1252 /* Ethtool support for get-stats */
1253
1254 #define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
1255 static const char ath9k_gstrings_stats[][ETH_GSTRING_LEN] = {
1256 "tx_pkts_nic",
1257 "tx_bytes_nic",
1258 "rx_pkts_nic",
1259 "rx_bytes_nic",
1260 AMKSTR(d_tx_pkts),
1261 AMKSTR(d_tx_bytes),
1262 AMKSTR(d_tx_mpdus_queued),
1263 AMKSTR(d_tx_mpdus_completed),
1264 AMKSTR(d_tx_mpdu_xretries),
1265 AMKSTR(d_tx_aggregates),
1266 AMKSTR(d_tx_ampdus_queued_hw),
1267 AMKSTR(d_tx_ampdus_completed),
1268 AMKSTR(d_tx_ampdu_retries),
1269 AMKSTR(d_tx_ampdu_xretries),
1270 AMKSTR(d_tx_fifo_underrun),
1271 AMKSTR(d_tx_op_exceeded),
1272 AMKSTR(d_tx_timer_expiry),
1273 AMKSTR(d_tx_desc_cfg_err),
1274 AMKSTR(d_tx_data_underrun),
1275 AMKSTR(d_tx_delim_underrun),
1276 "d_rx_crc_err",
1277 "d_rx_decrypt_crc_err",
1278 "d_rx_phy_err",
1279 "d_rx_mic_err",
1280 "d_rx_pre_delim_crc_err",
1281 "d_rx_post_delim_crc_err",
1282 "d_rx_decrypt_busy_err",
1283
1284 "d_rx_phyerr_radar",
1285 "d_rx_phyerr_ofdm_timing",
1286 "d_rx_phyerr_cck_timing",
1287
1288 };
1289 #define ATH9K_SSTATS_LEN ARRAY_SIZE(ath9k_gstrings_stats)
1290
ath9k_get_et_strings(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 sset,u8 * data)1291 void ath9k_get_et_strings(struct ieee80211_hw *hw,
1292 struct ieee80211_vif *vif,
1293 u32 sset, u8 *data)
1294 {
1295 if (sset == ETH_SS_STATS)
1296 memcpy(data, ath9k_gstrings_stats,
1297 sizeof(ath9k_gstrings_stats));
1298 }
1299
ath9k_get_et_sset_count(struct ieee80211_hw * hw,struct ieee80211_vif * vif,int sset)1300 int ath9k_get_et_sset_count(struct ieee80211_hw *hw,
1301 struct ieee80211_vif *vif, int sset)
1302 {
1303 if (sset == ETH_SS_STATS)
1304 return ATH9K_SSTATS_LEN;
1305 return 0;
1306 }
1307
1308 #define AWDATA(elem) \
1309 do { \
1310 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].elem; \
1311 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].elem; \
1312 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].elem; \
1313 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].elem; \
1314 } while (0)
1315
1316 #define AWDATA_RX(elem) \
1317 do { \
1318 data[i++] = sc->debug.stats.rxstats.elem; \
1319 } while (0)
1320
ath9k_get_et_stats(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ethtool_stats * stats,u64 * data)1321 void ath9k_get_et_stats(struct ieee80211_hw *hw,
1322 struct ieee80211_vif *vif,
1323 struct ethtool_stats *stats, u64 *data)
1324 {
1325 struct ath_softc *sc = hw->priv;
1326 int i = 0;
1327
1328 data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_pkts_all +
1329 sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_pkts_all +
1330 sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_pkts_all +
1331 sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_pkts_all);
1332 data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_bytes_all +
1333 sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_bytes_all +
1334 sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_bytes_all +
1335 sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_bytes_all);
1336 AWDATA_RX(rx_pkts_all);
1337 AWDATA_RX(rx_bytes_all);
1338
1339 AWDATA(tx_pkts_all);
1340 AWDATA(tx_bytes_all);
1341 AWDATA(queued);
1342 AWDATA(completed);
1343 AWDATA(xretries);
1344 AWDATA(a_aggr);
1345 AWDATA(a_queued_hw);
1346 AWDATA(a_completed);
1347 AWDATA(a_retries);
1348 AWDATA(a_xretries);
1349 AWDATA(fifo_underrun);
1350 AWDATA(xtxop);
1351 AWDATA(timer_exp);
1352 AWDATA(desc_cfg_err);
1353 AWDATA(data_underrun);
1354 AWDATA(delim_underrun);
1355
1356 AWDATA_RX(crc_err);
1357 AWDATA_RX(decrypt_crc_err);
1358 AWDATA_RX(phy_err);
1359 AWDATA_RX(mic_err);
1360 AWDATA_RX(pre_delim_crc_err);
1361 AWDATA_RX(post_delim_crc_err);
1362 AWDATA_RX(decrypt_busy_err);
1363
1364 AWDATA_RX(phy_err_stats[ATH9K_PHYERR_RADAR]);
1365 AWDATA_RX(phy_err_stats[ATH9K_PHYERR_OFDM_TIMING]);
1366 AWDATA_RX(phy_err_stats[ATH9K_PHYERR_CCK_TIMING]);
1367
1368 WARN_ON(i != ATH9K_SSTATS_LEN);
1369 }
1370
ath9k_deinit_debug(struct ath_softc * sc)1371 void ath9k_deinit_debug(struct ath_softc *sc)
1372 {
1373 ath9k_cmn_spectral_deinit_debug(&sc->spec_priv);
1374 }
1375
ath9k_init_debug(struct ath_hw * ah)1376 int ath9k_init_debug(struct ath_hw *ah)
1377 {
1378 struct ath_common *common = ath9k_hw_common(ah);
1379 struct ath_softc *sc = (struct ath_softc *) common->priv;
1380
1381 sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
1382 sc->hw->wiphy->debugfsdir);
1383 if (IS_ERR(sc->debug.debugfs_phy))
1384 return -ENOMEM;
1385
1386 #ifdef CONFIG_ATH_DEBUG
1387 debugfs_create_file("debug", 0600, sc->debug.debugfs_phy,
1388 sc, &fops_debug);
1389 #endif
1390
1391 ath9k_dfs_init_debug(sc);
1392 ath9k_tx99_init_debug(sc);
1393 ath9k_cmn_spectral_init_debug(&sc->spec_priv, sc->debug.debugfs_phy);
1394
1395 debugfs_create_devm_seqfile(sc->dev, "dma", sc->debug.debugfs_phy,
1396 read_file_dma);
1397 debugfs_create_devm_seqfile(sc->dev, "interrupt", sc->debug.debugfs_phy,
1398 read_file_interrupt);
1399 debugfs_create_devm_seqfile(sc->dev, "xmit", sc->debug.debugfs_phy,
1400 read_file_xmit);
1401 debugfs_create_devm_seqfile(sc->dev, "queues", sc->debug.debugfs_phy,
1402 read_file_queues);
1403 debugfs_create_devm_seqfile(sc->dev, "misc", sc->debug.debugfs_phy,
1404 read_file_misc);
1405 debugfs_create_file("reset", 0600, sc->debug.debugfs_phy,
1406 sc, &fops_reset);
1407
1408 ath9k_cmn_debug_recv(sc->debug.debugfs_phy, &sc->debug.stats.rxstats);
1409 ath9k_cmn_debug_phy_err(sc->debug.debugfs_phy, &sc->debug.stats.rxstats);
1410
1411 debugfs_create_u8("rx_chainmask", 0400, sc->debug.debugfs_phy,
1412 &ah->rxchainmask);
1413 debugfs_create_u8("tx_chainmask", 0400, sc->debug.debugfs_phy,
1414 &ah->txchainmask);
1415 debugfs_create_file("ani", 0600,
1416 sc->debug.debugfs_phy, sc, &fops_ani);
1417 debugfs_create_bool("paprd", 0600, sc->debug.debugfs_phy,
1418 &sc->sc_ah->config.enable_paprd);
1419 debugfs_create_file("regidx", 0600, sc->debug.debugfs_phy,
1420 sc, &fops_regidx);
1421 debugfs_create_file("regval", 0600, sc->debug.debugfs_phy,
1422 sc, &fops_regval);
1423 debugfs_create_bool("ignore_extcca", 0600,
1424 sc->debug.debugfs_phy,
1425 &ah->config.cwm_ignore_extcca);
1426 debugfs_create_file("regdump", 0400, sc->debug.debugfs_phy, sc,
1427 &fops_regdump);
1428 debugfs_create_devm_seqfile(sc->dev, "dump_nfcal",
1429 sc->debug.debugfs_phy,
1430 read_file_dump_nfcal);
1431
1432 ath9k_cmn_debug_base_eeprom(sc->debug.debugfs_phy, sc->sc_ah);
1433 ath9k_cmn_debug_modal_eeprom(sc->debug.debugfs_phy, sc->sc_ah);
1434
1435 debugfs_create_u32("gpio_mask", 0600,
1436 sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
1437 debugfs_create_u32("gpio_val", 0600,
1438 sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
1439 debugfs_create_file("antenna_diversity", 0400,
1440 sc->debug.debugfs_phy, sc, &fops_antenna_diversity);
1441 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1442 debugfs_create_file("bt_ant_diversity", 0600,
1443 sc->debug.debugfs_phy, sc, &fops_bt_ant_diversity);
1444 debugfs_create_file("btcoex", 0400, sc->debug.debugfs_phy, sc,
1445 &fops_btcoex);
1446 #endif
1447
1448 #ifdef CONFIG_ATH9K_WOW
1449 debugfs_create_file("wow", 0600, sc->debug.debugfs_phy, sc, &fops_wow);
1450 #endif
1451
1452 #ifdef CONFIG_ATH9K_DYNACK
1453 debugfs_create_file("ack_to", 0400, sc->debug.debugfs_phy,
1454 sc, &fops_ackto);
1455 #endif
1456 debugfs_create_file("tpc", 0600, sc->debug.debugfs_phy, sc, &fops_tpc);
1457
1458 debugfs_create_file("nf_override", 0600,
1459 sc->debug.debugfs_phy, sc, &fops_nf_override);
1460
1461 return 0;
1462 }
1463