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61#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
62
63#include <linux/export.h>
64#include <linux/moduleparam.h>
65
66#include <linux/seq_file.h>
67#include <linux/list.h>
68#include "debug.h"
69#include "ath5k.h"
70#include "reg.h"
71#include "base.h"
72
73static unsigned int ath5k_debug;
74module_param_named(debug, ath5k_debug, uint, 0);
75
76
77
78
79struct reg {
80 const char *name;
81 int addr;
82};
83
84#define REG_STRUCT_INIT(r) { #r, r }
85
86
87static const struct reg regs[] = {
88 REG_STRUCT_INIT(AR5K_CR),
89 REG_STRUCT_INIT(AR5K_RXDP),
90 REG_STRUCT_INIT(AR5K_CFG),
91 REG_STRUCT_INIT(AR5K_IER),
92 REG_STRUCT_INIT(AR5K_BCR),
93 REG_STRUCT_INIT(AR5K_RTSD0),
94 REG_STRUCT_INIT(AR5K_RTSD1),
95 REG_STRUCT_INIT(AR5K_TXCFG),
96 REG_STRUCT_INIT(AR5K_RXCFG),
97 REG_STRUCT_INIT(AR5K_RXJLA),
98 REG_STRUCT_INIT(AR5K_MIBC),
99 REG_STRUCT_INIT(AR5K_TOPS),
100 REG_STRUCT_INIT(AR5K_RXNOFRM),
101 REG_STRUCT_INIT(AR5K_TXNOFRM),
102 REG_STRUCT_INIT(AR5K_RPGTO),
103 REG_STRUCT_INIT(AR5K_RFCNT),
104 REG_STRUCT_INIT(AR5K_MISC),
105 REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT),
106 REG_STRUCT_INIT(AR5K_ISR),
107 REG_STRUCT_INIT(AR5K_PISR),
108 REG_STRUCT_INIT(AR5K_SISR0),
109 REG_STRUCT_INIT(AR5K_SISR1),
110 REG_STRUCT_INIT(AR5K_SISR2),
111 REG_STRUCT_INIT(AR5K_SISR3),
112 REG_STRUCT_INIT(AR5K_SISR4),
113 REG_STRUCT_INIT(AR5K_IMR),
114 REG_STRUCT_INIT(AR5K_PIMR),
115 REG_STRUCT_INIT(AR5K_SIMR0),
116 REG_STRUCT_INIT(AR5K_SIMR1),
117 REG_STRUCT_INIT(AR5K_SIMR2),
118 REG_STRUCT_INIT(AR5K_SIMR3),
119 REG_STRUCT_INIT(AR5K_SIMR4),
120 REG_STRUCT_INIT(AR5K_DCM_ADDR),
121 REG_STRUCT_INIT(AR5K_DCCFG),
122 REG_STRUCT_INIT(AR5K_CCFG),
123 REG_STRUCT_INIT(AR5K_CPC0),
124 REG_STRUCT_INIT(AR5K_CPC1),
125 REG_STRUCT_INIT(AR5K_CPC2),
126 REG_STRUCT_INIT(AR5K_CPC3),
127 REG_STRUCT_INIT(AR5K_CPCOVF),
128 REG_STRUCT_INIT(AR5K_RESET_CTL),
129 REG_STRUCT_INIT(AR5K_SLEEP_CTL),
130 REG_STRUCT_INIT(AR5K_INTPEND),
131 REG_STRUCT_INIT(AR5K_SFR),
132 REG_STRUCT_INIT(AR5K_PCICFG),
133 REG_STRUCT_INIT(AR5K_GPIOCR),
134 REG_STRUCT_INIT(AR5K_GPIODO),
135 REG_STRUCT_INIT(AR5K_SREV),
136};
137
138static void *reg_start(struct seq_file *seq, loff_t *pos)
139{
140 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;
141}
142
143static void reg_stop(struct seq_file *seq, void *p)
144{
145
146}
147
148static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)
149{
150 ++*pos;
151 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;
152}
153
154static int reg_show(struct seq_file *seq, void *p)
155{
156 struct ath5k_hw *ah = seq->private;
157 struct reg *r = p;
158 seq_printf(seq, "%-25s0x%08x\n", r->name,
159 ath5k_hw_reg_read(ah, r->addr));
160 return 0;
161}
162
163static const struct seq_operations register_seq_ops = {
164 .start = reg_start,
165 .next = reg_next,
166 .stop = reg_stop,
167 .show = reg_show
168};
169
170static int open_file_registers(struct inode *inode, struct file *file)
171{
172 struct seq_file *s;
173 int res;
174 res = seq_open(file, ®ister_seq_ops);
175 if (res == 0) {
176 s = file->private_data;
177 s->private = inode->i_private;
178 }
179 return res;
180}
181
182static const struct file_operations fops_registers = {
183 .open = open_file_registers,
184 .read = seq_read,
185 .llseek = seq_lseek,
186 .release = seq_release,
187 .owner = THIS_MODULE,
188};
189
190
191
192
193static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
194 size_t count, loff_t *ppos)
195{
196 struct ath5k_hw *ah = file->private_data;
197 char buf[500];
198 unsigned int len = 0;
199 unsigned int v;
200 u64 tsf;
201
202 v = ath5k_hw_reg_read(ah, AR5K_BEACON);
203 len += snprintf(buf + len, sizeof(buf) - len,
204 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
205 "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,
206 (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);
207
208 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n",
209 "AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP));
210
211 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n",
212 "AR5K_BEACON_CNT", ath5k_hw_reg_read(ah, AR5K_BEACON_CNT));
213
214 v = ath5k_hw_reg_read(ah, AR5K_TIMER0);
215 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
216 "AR5K_TIMER0 (TBTT)", v, v);
217
218 v = ath5k_hw_reg_read(ah, AR5K_TIMER1);
219 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
220 "AR5K_TIMER1 (DMA)", v, v >> 3);
221
222 v = ath5k_hw_reg_read(ah, AR5K_TIMER2);
223 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
224 "AR5K_TIMER2 (SWBA)", v, v >> 3);
225
226 v = ath5k_hw_reg_read(ah, AR5K_TIMER3);
227 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
228 "AR5K_TIMER3 (ATIM)", v, v);
229
230 tsf = ath5k_hw_get_tsf64(ah);
231 len += snprintf(buf + len, sizeof(buf) - len,
232 "TSF\t\t0x%016llx\tTU: %08x\n",
233 (unsigned long long)tsf, TSF_TO_TU(tsf));
234
235 if (len > sizeof(buf))
236 len = sizeof(buf);
237
238 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
239}
240
241static ssize_t write_file_beacon(struct file *file,
242 const char __user *userbuf,
243 size_t count, loff_t *ppos)
244{
245 struct ath5k_hw *ah = file->private_data;
246 char buf[20];
247
248 count = min_t(size_t, count, sizeof(buf) - 1);
249 if (copy_from_user(buf, userbuf, count))
250 return -EFAULT;
251
252 buf[count] = '\0';
253 if (strncmp(buf, "disable", 7) == 0) {
254 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
255 pr_info("debugfs disable beacons\n");
256 } else if (strncmp(buf, "enable", 6) == 0) {
257 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
258 pr_info("debugfs enable beacons\n");
259 }
260 return count;
261}
262
263static const struct file_operations fops_beacon = {
264 .read = read_file_beacon,
265 .write = write_file_beacon,
266 .open = simple_open,
267 .owner = THIS_MODULE,
268 .llseek = default_llseek,
269};
270
271
272
273
274static ssize_t write_file_reset(struct file *file,
275 const char __user *userbuf,
276 size_t count, loff_t *ppos)
277{
278 struct ath5k_hw *ah = file->private_data;
279 ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
280 ieee80211_queue_work(ah->hw, &ah->reset_work);
281 return count;
282}
283
284static const struct file_operations fops_reset = {
285 .write = write_file_reset,
286 .open = simple_open,
287 .owner = THIS_MODULE,
288 .llseek = noop_llseek,
289};
290
291
292
293
294static const struct {
295 enum ath5k_debug_level level;
296 const char *name;
297 const char *desc;
298} dbg_info[] = {
299 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" },
300 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" },
301 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" },
302 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" },
303 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" },
304 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" },
305 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" },
306 { ATH5K_DEBUG_LED, "led", "LED management" },
307 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" },
308 { ATH5K_DEBUG_DMA, "dma", "dma start/stop" },
309 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" },
310 { ATH5K_DEBUG_DESC, "desc", "descriptor chains" },
311 { ATH5K_DEBUG_ANY, "all", "show all debug levels" },
312};
313
314static ssize_t read_file_debug(struct file *file, char __user *user_buf,
315 size_t count, loff_t *ppos)
316{
317 struct ath5k_hw *ah = file->private_data;
318 char buf[700];
319 unsigned int len = 0;
320 unsigned int i;
321
322 len += snprintf(buf + len, sizeof(buf) - len,
323 "DEBUG LEVEL: 0x%08x\n\n", ah->debug.level);
324
325 for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
326 len += snprintf(buf + len, sizeof(buf) - len,
327 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
328 ah->debug.level & dbg_info[i].level ? '+' : ' ',
329 dbg_info[i].level, dbg_info[i].desc);
330 }
331 len += snprintf(buf + len, sizeof(buf) - len,
332 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
333 ah->debug.level == dbg_info[i].level ? '+' : ' ',
334 dbg_info[i].level, dbg_info[i].desc);
335
336 if (len > sizeof(buf))
337 len = sizeof(buf);
338
339 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
340}
341
342static ssize_t write_file_debug(struct file *file,
343 const char __user *userbuf,
344 size_t count, loff_t *ppos)
345{
346 struct ath5k_hw *ah = file->private_data;
347 unsigned int i;
348 char buf[20];
349
350 count = min_t(size_t, count, sizeof(buf) - 1);
351 if (copy_from_user(buf, userbuf, count))
352 return -EFAULT;
353
354 buf[count] = '\0';
355 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
356 if (strncmp(buf, dbg_info[i].name,
357 strlen(dbg_info[i].name)) == 0) {
358 ah->debug.level ^= dbg_info[i].level;
359 break;
360 }
361 }
362 return count;
363}
364
365static const struct file_operations fops_debug = {
366 .read = read_file_debug,
367 .write = write_file_debug,
368 .open = simple_open,
369 .owner = THIS_MODULE,
370 .llseek = default_llseek,
371};
372
373
374
375
376static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
377 size_t count, loff_t *ppos)
378{
379 struct ath5k_hw *ah = file->private_data;
380 char buf[700];
381 unsigned int len = 0;
382 unsigned int i;
383 unsigned int v;
384
385 len += snprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n",
386 ah->ah_ant_mode);
387 len += snprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n",
388 ah->ah_def_ant);
389 len += snprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n",
390 ah->ah_tx_ant);
391
392 len += snprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n");
393 for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
394 len += snprintf(buf + len, sizeof(buf) - len,
395 "[antenna %d]\t%d\t%d\n",
396 i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]);
397 }
398 len += snprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n",
399 ah->stats.antenna_rx[0], ah->stats.antenna_tx[0]);
400
401 v = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA);
402 len += snprintf(buf + len, sizeof(buf) - len,
403 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
404
405 v = ath5k_hw_reg_read(ah, AR5K_STA_ID1);
406 len += snprintf(buf + len, sizeof(buf) - len,
407 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
408 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
409 len += snprintf(buf + len, sizeof(buf) - len,
410 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
411 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
412 len += snprintf(buf + len, sizeof(buf) - len,
413 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
414 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
415 len += snprintf(buf + len, sizeof(buf) - len,
416 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
417 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
418
419 v = ath5k_hw_reg_read(ah, AR5K_PHY_AGCCTL);
420 len += snprintf(buf + len, sizeof(buf) - len,
421 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
422 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
423
424 v = ath5k_hw_reg_read(ah, AR5K_PHY_RESTART);
425 len += snprintf(buf + len, sizeof(buf) - len,
426 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
427 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
428
429 v = ath5k_hw_reg_read(ah, AR5K_PHY_FAST_ANT_DIV);
430 len += snprintf(buf + len, sizeof(buf) - len,
431 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
432 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
433
434 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
435 len += snprintf(buf + len, sizeof(buf) - len,
436 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
437 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
438 len += snprintf(buf + len, sizeof(buf) - len,
439 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
440
441 if (len > sizeof(buf))
442 len = sizeof(buf);
443
444 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
445}
446
447static ssize_t write_file_antenna(struct file *file,
448 const char __user *userbuf,
449 size_t count, loff_t *ppos)
450{
451 struct ath5k_hw *ah = file->private_data;
452 unsigned int i;
453 char buf[20];
454
455 count = min_t(size_t, count, sizeof(buf) - 1);
456 if (copy_from_user(buf, userbuf, count))
457 return -EFAULT;
458
459 buf[count] = '\0';
460 if (strncmp(buf, "diversity", 9) == 0) {
461 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT);
462 pr_info("debug: enable diversity\n");
463 } else if (strncmp(buf, "fixed-a", 7) == 0) {
464 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A);
465 pr_info("debug: fixed antenna A\n");
466 } else if (strncmp(buf, "fixed-b", 7) == 0) {
467 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B);
468 pr_info("debug: fixed antenna B\n");
469 } else if (strncmp(buf, "clear", 5) == 0) {
470 for (i = 0; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
471 ah->stats.antenna_rx[i] = 0;
472 ah->stats.antenna_tx[i] = 0;
473 }
474 pr_info("debug: cleared antenna stats\n");
475 }
476 return count;
477}
478
479static const struct file_operations fops_antenna = {
480 .read = read_file_antenna,
481 .write = write_file_antenna,
482 .open = simple_open,
483 .owner = THIS_MODULE,
484 .llseek = default_llseek,
485};
486
487
488
489static ssize_t read_file_misc(struct file *file, char __user *user_buf,
490 size_t count, loff_t *ppos)
491{
492 struct ath5k_hw *ah = file->private_data;
493 char buf[700];
494 unsigned int len = 0;
495 u32 filt = ath5k_hw_get_rx_filter(ah);
496
497 len += snprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n",
498 ah->bssidmask);
499 len += snprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ",
500 filt);
501 if (filt & AR5K_RX_FILTER_UCAST)
502 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
503 if (filt & AR5K_RX_FILTER_MCAST)
504 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
505 if (filt & AR5K_RX_FILTER_BCAST)
506 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
507 if (filt & AR5K_RX_FILTER_CONTROL)
508 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
509 if (filt & AR5K_RX_FILTER_BEACON)
510 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
511 if (filt & AR5K_RX_FILTER_PROM)
512 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
513 if (filt & AR5K_RX_FILTER_XRPOLL)
514 len += snprintf(buf + len, sizeof(buf) - len, " XRPOLL");
515 if (filt & AR5K_RX_FILTER_PROBEREQ)
516 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
517 if (filt & AR5K_RX_FILTER_PHYERR_5212)
518 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR-5212");
519 if (filt & AR5K_RX_FILTER_RADARERR_5212)
520 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5212");
521 if (filt & AR5K_RX_FILTER_PHYERR_5211)
522 snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211");
523 if (filt & AR5K_RX_FILTER_RADARERR_5211)
524 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5211");
525
526 len += snprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n",
527 ath_opmode_to_string(ah->opmode), ah->opmode);
528
529 if (len > sizeof(buf))
530 len = sizeof(buf);
531
532 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
533}
534
535static const struct file_operations fops_misc = {
536 .read = read_file_misc,
537 .open = simple_open,
538 .owner = THIS_MODULE,
539};
540
541
542
543
544static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
545 size_t count, loff_t *ppos)
546{
547 struct ath5k_hw *ah = file->private_data;
548 struct ath5k_statistics *st = &ah->stats;
549 char buf[700];
550 unsigned int len = 0;
551 int i;
552
553 len += snprintf(buf + len, sizeof(buf) - len,
554 "RX\n---------------------\n");
555 len += snprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n",
556 st->rxerr_crc,
557 st->rx_all_count > 0 ?
558 st->rxerr_crc * 100 / st->rx_all_count : 0);
559 len += snprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n",
560 st->rxerr_phy,
561 st->rx_all_count > 0 ?
562 st->rxerr_phy * 100 / st->rx_all_count : 0);
563 for (i = 0; i < 32; i++) {
564 if (st->rxerr_phy_code[i])
565 len += snprintf(buf + len, sizeof(buf) - len,
566 " phy_err[%u]\t%u\n",
567 i, st->rxerr_phy_code[i]);
568 }
569
570 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
571 st->rxerr_fifo,
572 st->rx_all_count > 0 ?
573 st->rxerr_fifo * 100 / st->rx_all_count : 0);
574 len += snprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n",
575 st->rxerr_decrypt,
576 st->rx_all_count > 0 ?
577 st->rxerr_decrypt * 100 / st->rx_all_count : 0);
578 len += snprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n",
579 st->rxerr_mic,
580 st->rx_all_count > 0 ?
581 st->rxerr_mic * 100 / st->rx_all_count : 0);
582 len += snprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n",
583 st->rxerr_proc,
584 st->rx_all_count > 0 ?
585 st->rxerr_proc * 100 / st->rx_all_count : 0);
586 len += snprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n",
587 st->rxerr_jumbo,
588 st->rx_all_count > 0 ?
589 st->rxerr_jumbo * 100 / st->rx_all_count : 0);
590 len += snprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n",
591 st->rx_all_count);
592 len += snprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n",
593 st->rx_bytes_count);
594
595 len += snprintf(buf + len, sizeof(buf) - len,
596 "\nTX\n---------------------\n");
597 len += snprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n",
598 st->txerr_retry,
599 st->tx_all_count > 0 ?
600 st->txerr_retry * 100 / st->tx_all_count : 0);
601 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
602 st->txerr_fifo,
603 st->tx_all_count > 0 ?
604 st->txerr_fifo * 100 / st->tx_all_count : 0);
605 len += snprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n",
606 st->txerr_filt,
607 st->tx_all_count > 0 ?
608 st->txerr_filt * 100 / st->tx_all_count : 0);
609 len += snprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n",
610 st->tx_all_count);
611 len += snprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n",
612 st->tx_bytes_count);
613
614 if (len > sizeof(buf))
615 len = sizeof(buf);
616
617 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
618}
619
620static ssize_t write_file_frameerrors(struct file *file,
621 const char __user *userbuf,
622 size_t count, loff_t *ppos)
623{
624 struct ath5k_hw *ah = file->private_data;
625 struct ath5k_statistics *st = &ah->stats;
626 char buf[20];
627
628 count = min_t(size_t, count, sizeof(buf) - 1);
629 if (copy_from_user(buf, userbuf, count))
630 return -EFAULT;
631
632 buf[count] = '\0';
633 if (strncmp(buf, "clear", 5) == 0) {
634 st->rxerr_crc = 0;
635 st->rxerr_phy = 0;
636 st->rxerr_fifo = 0;
637 st->rxerr_decrypt = 0;
638 st->rxerr_mic = 0;
639 st->rxerr_proc = 0;
640 st->rxerr_jumbo = 0;
641 st->rx_all_count = 0;
642 st->txerr_retry = 0;
643 st->txerr_fifo = 0;
644 st->txerr_filt = 0;
645 st->tx_all_count = 0;
646 pr_info("debug: cleared frameerrors stats\n");
647 }
648 return count;
649}
650
651static const struct file_operations fops_frameerrors = {
652 .read = read_file_frameerrors,
653 .write = write_file_frameerrors,
654 .open = simple_open,
655 .owner = THIS_MODULE,
656 .llseek = default_llseek,
657};
658
659
660
661
662static ssize_t read_file_ani(struct file *file, char __user *user_buf,
663 size_t count, loff_t *ppos)
664{
665 struct ath5k_hw *ah = file->private_data;
666 struct ath5k_statistics *st = &ah->stats;
667 struct ath5k_ani_state *as = &ah->ani_state;
668
669 char buf[700];
670 unsigned int len = 0;
671
672 len += snprintf(buf + len, sizeof(buf) - len,
673 "HW has PHY error counters:\t%s\n",
674 ah->ah_capabilities.cap_has_phyerr_counters ?
675 "yes" : "no");
676 len += snprintf(buf + len, sizeof(buf) - len,
677 "HW max spur immunity level:\t%d\n",
678 as->max_spur_level);
679 len += snprintf(buf + len, sizeof(buf) - len,
680 "\nANI state\n--------------------------------------------\n");
681 len += snprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t");
682 switch (as->ani_mode) {
683 case ATH5K_ANI_MODE_OFF:
684 len += snprintf(buf + len, sizeof(buf) - len, "OFF\n");
685 break;
686 case ATH5K_ANI_MODE_MANUAL_LOW:
687 len += snprintf(buf + len, sizeof(buf) - len,
688 "MANUAL LOW\n");
689 break;
690 case ATH5K_ANI_MODE_MANUAL_HIGH:
691 len += snprintf(buf + len, sizeof(buf) - len,
692 "MANUAL HIGH\n");
693 break;
694 case ATH5K_ANI_MODE_AUTO:
695 len += snprintf(buf + len, sizeof(buf) - len, "AUTO\n");
696 break;
697 default:
698 len += snprintf(buf + len, sizeof(buf) - len,
699 "??? (not good)\n");
700 break;
701 }
702 len += snprintf(buf + len, sizeof(buf) - len,
703 "noise immunity level:\t\t%d\n",
704 as->noise_imm_level);
705 len += snprintf(buf + len, sizeof(buf) - len,
706 "spur immunity level:\t\t%d\n",
707 as->spur_level);
708 len += snprintf(buf + len, sizeof(buf) - len,
709 "firstep level:\t\t\t%d\n",
710 as->firstep_level);
711 len += snprintf(buf + len, sizeof(buf) - len,
712 "OFDM weak signal detection:\t%s\n",
713 as->ofdm_weak_sig ? "on" : "off");
714 len += snprintf(buf + len, sizeof(buf) - len,
715 "CCK weak signal detection:\t%s\n",
716 as->cck_weak_sig ? "on" : "off");
717
718 len += snprintf(buf + len, sizeof(buf) - len,
719 "\nMIB INTERRUPTS:\t\t%u\n",
720 st->mib_intr);
721 len += snprintf(buf + len, sizeof(buf) - len,
722 "beacon RSSI average:\t%d\n",
723 (int)ewma_read(&ah->ah_beacon_rssi_avg));
724
725#define CC_PRINT(_struct, _field) \
726 _struct._field, \
727 _struct.cycles > 0 ? \
728 _struct._field * 100 / _struct.cycles : 0
729
730 len += snprintf(buf + len, sizeof(buf) - len,
731 "profcnt tx\t\t%u\t(%d%%)\n",
732 CC_PRINT(as->last_cc, tx_frame));
733 len += snprintf(buf + len, sizeof(buf) - len,
734 "profcnt rx\t\t%u\t(%d%%)\n",
735 CC_PRINT(as->last_cc, rx_frame));
736 len += snprintf(buf + len, sizeof(buf) - len,
737 "profcnt busy\t\t%u\t(%d%%)\n",
738 CC_PRINT(as->last_cc, rx_busy));
739#undef CC_PRINT
740 len += snprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n",
741 as->last_cc.cycles);
742 len += snprintf(buf + len, sizeof(buf) - len,
743 "listen time\t\t%d\tlast: %d\n",
744 as->listen_time, as->last_listen);
745 len += snprintf(buf + len, sizeof(buf) - len,
746 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
747 as->ofdm_errors, as->last_ofdm_errors,
748 as->sum_ofdm_errors);
749 len += snprintf(buf + len, sizeof(buf) - len,
750 "CCK errors\t\t%u\tlast: %u\tsum: %u\n",
751 as->cck_errors, as->last_cck_errors,
752 as->sum_cck_errors);
753 len += snprintf(buf + len, sizeof(buf) - len,
754 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
755 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1),
756 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
757 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1)));
758 len += snprintf(buf + len, sizeof(buf) - len,
759 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
760 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2),
761 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
762 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2)));
763
764 if (len > sizeof(buf))
765 len = sizeof(buf);
766
767 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
768}
769
770static ssize_t write_file_ani(struct file *file,
771 const char __user *userbuf,
772 size_t count, loff_t *ppos)
773{
774 struct ath5k_hw *ah = file->private_data;
775 char buf[20];
776
777 count = min_t(size_t, count, sizeof(buf) - 1);
778 if (copy_from_user(buf, userbuf, count))
779 return -EFAULT;
780
781 buf[count] = '\0';
782 if (strncmp(buf, "sens-low", 8) == 0) {
783 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_HIGH);
784 } else if (strncmp(buf, "sens-high", 9) == 0) {
785 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_LOW);
786 } else if (strncmp(buf, "ani-off", 7) == 0) {
787 ath5k_ani_init(ah, ATH5K_ANI_MODE_OFF);
788 } else if (strncmp(buf, "ani-on", 6) == 0) {
789 ath5k_ani_init(ah, ATH5K_ANI_MODE_AUTO);
790 } else if (strncmp(buf, "noise-low", 9) == 0) {
791 ath5k_ani_set_noise_immunity_level(ah, 0);
792 } else if (strncmp(buf, "noise-high", 10) == 0) {
793 ath5k_ani_set_noise_immunity_level(ah,
794 ATH5K_ANI_MAX_NOISE_IMM_LVL);
795 } else if (strncmp(buf, "spur-low", 8) == 0) {
796 ath5k_ani_set_spur_immunity_level(ah, 0);
797 } else if (strncmp(buf, "spur-high", 9) == 0) {
798 ath5k_ani_set_spur_immunity_level(ah,
799 ah->ani_state.max_spur_level);
800 } else if (strncmp(buf, "fir-low", 7) == 0) {
801 ath5k_ani_set_firstep_level(ah, 0);
802 } else if (strncmp(buf, "fir-high", 8) == 0) {
803 ath5k_ani_set_firstep_level(ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
804 } else if (strncmp(buf, "ofdm-off", 8) == 0) {
805 ath5k_ani_set_ofdm_weak_signal_detection(ah, false);
806 } else if (strncmp(buf, "ofdm-on", 7) == 0) {
807 ath5k_ani_set_ofdm_weak_signal_detection(ah, true);
808 } else if (strncmp(buf, "cck-off", 7) == 0) {
809 ath5k_ani_set_cck_weak_signal_detection(ah, false);
810 } else if (strncmp(buf, "cck-on", 6) == 0) {
811 ath5k_ani_set_cck_weak_signal_detection(ah, true);
812 }
813 return count;
814}
815
816static const struct file_operations fops_ani = {
817 .read = read_file_ani,
818 .write = write_file_ani,
819 .open = simple_open,
820 .owner = THIS_MODULE,
821 .llseek = default_llseek,
822};
823
824
825
826
827static ssize_t read_file_queue(struct file *file, char __user *user_buf,
828 size_t count, loff_t *ppos)
829{
830 struct ath5k_hw *ah = file->private_data;
831 char buf[700];
832 unsigned int len = 0;
833
834 struct ath5k_txq *txq;
835 struct ath5k_buf *bf, *bf0;
836 int i, n;
837
838 len += snprintf(buf + len, sizeof(buf) - len,
839 "available txbuffers: %d\n", ah->txbuf_len);
840
841 for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) {
842 txq = &ah->txqs[i];
843
844 len += snprintf(buf + len, sizeof(buf) - len,
845 "%02d: %ssetup\n", i, txq->setup ? "" : "not ");
846
847 if (!txq->setup)
848 continue;
849
850 n = 0;
851 spin_lock_bh(&txq->lock);
852 list_for_each_entry_safe(bf, bf0, &txq->q, list)
853 n++;
854 spin_unlock_bh(&txq->lock);
855
856 len += snprintf(buf + len, sizeof(buf) - len,
857 " len: %d bufs: %d\n", txq->txq_len, n);
858 len += snprintf(buf + len, sizeof(buf) - len,
859 " stuck: %d\n", txq->txq_stuck);
860 }
861
862 if (len > sizeof(buf))
863 len = sizeof(buf);
864
865 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
866}
867
868static ssize_t write_file_queue(struct file *file,
869 const char __user *userbuf,
870 size_t count, loff_t *ppos)
871{
872 struct ath5k_hw *ah = file->private_data;
873 char buf[20];
874
875 count = min_t(size_t, count, sizeof(buf) - 1);
876 if (copy_from_user(buf, userbuf, count))
877 return -EFAULT;
878
879 buf[count] = '\0';
880 if (strncmp(buf, "start", 5) == 0)
881 ieee80211_wake_queues(ah->hw);
882 else if (strncmp(buf, "stop", 4) == 0)
883 ieee80211_stop_queues(ah->hw);
884
885 return count;
886}
887
888
889static const struct file_operations fops_queue = {
890 .read = read_file_queue,
891 .write = write_file_queue,
892 .open = simple_open,
893 .owner = THIS_MODULE,
894 .llseek = default_llseek,
895};
896
897
898void
899ath5k_debug_init_device(struct ath5k_hw *ah)
900{
901 struct dentry *phydir;
902
903 ah->debug.level = ath5k_debug;
904
905 phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir);
906 if (!phydir)
907 return;
908
909 debugfs_create_file("debug", S_IWUSR | S_IRUSR, phydir, ah,
910 &fops_debug);
911
912 debugfs_create_file("registers", S_IRUSR, phydir, ah, &fops_registers);
913
914 debugfs_create_file("beacon", S_IWUSR | S_IRUSR, phydir, ah,
915 &fops_beacon);
916
917 debugfs_create_file("reset", S_IWUSR, phydir, ah, &fops_reset);
918
919 debugfs_create_file("antenna", S_IWUSR | S_IRUSR, phydir, ah,
920 &fops_antenna);
921
922 debugfs_create_file("misc", S_IRUSR, phydir, ah, &fops_misc);
923
924 debugfs_create_file("frameerrors", S_IWUSR | S_IRUSR, phydir, ah,
925 &fops_frameerrors);
926
927 debugfs_create_file("ani", S_IWUSR | S_IRUSR, phydir, ah, &fops_ani);
928
929 debugfs_create_file("queue", S_IWUSR | S_IRUSR, phydir, ah,
930 &fops_queue);
931
932 debugfs_create_bool("32khz_clock", S_IWUSR | S_IRUSR, phydir,
933 &ah->ah_use_32khz_clock);
934}
935
936
937
938void
939ath5k_debug_dump_bands(struct ath5k_hw *ah)
940{
941 unsigned int b, i;
942
943 if (likely(!(ah->debug.level & ATH5K_DEBUG_DUMPBANDS)))
944 return;
945
946 BUG_ON(!ah->sbands);
947
948 for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
949 struct ieee80211_supported_band *band = &ah->sbands[b];
950 char bname[6];
951 switch (band->band) {
952 case IEEE80211_BAND_2GHZ:
953 strcpy(bname, "2 GHz");
954 break;
955 case IEEE80211_BAND_5GHZ:
956 strcpy(bname, "5 GHz");
957 break;
958 default:
959 printk(KERN_DEBUG "Band not supported: %d\n",
960 band->band);
961 return;
962 }
963 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
964 band->n_channels, band->n_bitrates);
965 printk(KERN_DEBUG " channels:\n");
966 for (i = 0; i < band->n_channels; i++)
967 printk(KERN_DEBUG " %3d %d %.4x %.4x\n",
968 ieee80211_frequency_to_channel(
969 band->channels[i].center_freq),
970 band->channels[i].center_freq,
971 band->channels[i].hw_value,
972 band->channels[i].flags);
973 printk(KERN_DEBUG " rates:\n");
974 for (i = 0; i < band->n_bitrates; i++)
975 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n",
976 band->bitrates[i].bitrate,
977 band->bitrates[i].hw_value,
978 band->bitrates[i].flags,
979 band->bitrates[i].hw_value_short);
980 }
981}
982
983static inline void
984ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
985 struct ath5k_rx_status *rs)
986{
987 struct ath5k_desc *ds = bf->desc;
988 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
989
990 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
991 ds, (unsigned long long)bf->daddr,
992 ds->ds_link, ds->ds_data,
993 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
994 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
995 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
996}
997
998void
999ath5k_debug_printrxbuffs(struct ath5k_hw *ah)
1000{
1001 struct ath5k_desc *ds;
1002 struct ath5k_buf *bf;
1003 struct ath5k_rx_status rs = {};
1004 int status;
1005
1006 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
1007 return;
1008
1009 printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
1010 ath5k_hw_get_rxdp(ah), ah->rxlink);
1011
1012 spin_lock_bh(&ah->rxbuflock);
1013 list_for_each_entry(bf, &ah->rxbuf, list) {
1014 ds = bf->desc;
1015 status = ah->ah_proc_rx_desc(ah, ds, &rs);
1016 if (!status)
1017 ath5k_debug_printrxbuf(bf, status == 0, &rs);
1018 }
1019 spin_unlock_bh(&ah->rxbuflock);
1020}
1021
1022void
1023ath5k_debug_printtxbuf(struct ath5k_hw *ah, struct ath5k_buf *bf)
1024{
1025 struct ath5k_desc *ds = bf->desc;
1026 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
1027 struct ath5k_tx_status ts = {};
1028 int done;
1029
1030 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
1031 return;
1032
1033 done = ah->ah_proc_tx_desc(ah, bf->desc, &ts);
1034
1035 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
1036 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
1037 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
1038 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
1039 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
1040 done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
1041}
1042
