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61#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
62
63#include <linux/export.h>
64#include <linux/moduleparam.h>
65#include <linux/vmalloc.h>
66
67#include <linux/seq_file.h>
68#include <linux/list.h>
69#include <linux/vmalloc.h>
70#include "debug.h"
71#include "ath5k.h"
72#include "reg.h"
73#include "base.h"
74
75static unsigned int ath5k_debug;
76module_param_named(debug, ath5k_debug, uint, 0);
77
78
79
80
81struct reg {
82 const char *name;
83 int addr;
84};
85
86#define REG_STRUCT_INIT(r) { #r, r }
87
88
89static const struct reg regs[] = {
90 REG_STRUCT_INIT(AR5K_CR),
91 REG_STRUCT_INIT(AR5K_RXDP),
92 REG_STRUCT_INIT(AR5K_CFG),
93 REG_STRUCT_INIT(AR5K_IER),
94 REG_STRUCT_INIT(AR5K_BCR),
95 REG_STRUCT_INIT(AR5K_RTSD0),
96 REG_STRUCT_INIT(AR5K_RTSD1),
97 REG_STRUCT_INIT(AR5K_TXCFG),
98 REG_STRUCT_INIT(AR5K_RXCFG),
99 REG_STRUCT_INIT(AR5K_RXJLA),
100 REG_STRUCT_INIT(AR5K_MIBC),
101 REG_STRUCT_INIT(AR5K_TOPS),
102 REG_STRUCT_INIT(AR5K_RXNOFRM),
103 REG_STRUCT_INIT(AR5K_TXNOFRM),
104 REG_STRUCT_INIT(AR5K_RPGTO),
105 REG_STRUCT_INIT(AR5K_RFCNT),
106 REG_STRUCT_INIT(AR5K_MISC),
107 REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT),
108 REG_STRUCT_INIT(AR5K_ISR),
109 REG_STRUCT_INIT(AR5K_PISR),
110 REG_STRUCT_INIT(AR5K_SISR0),
111 REG_STRUCT_INIT(AR5K_SISR1),
112 REG_STRUCT_INIT(AR5K_SISR2),
113 REG_STRUCT_INIT(AR5K_SISR3),
114 REG_STRUCT_INIT(AR5K_SISR4),
115 REG_STRUCT_INIT(AR5K_IMR),
116 REG_STRUCT_INIT(AR5K_PIMR),
117 REG_STRUCT_INIT(AR5K_SIMR0),
118 REG_STRUCT_INIT(AR5K_SIMR1),
119 REG_STRUCT_INIT(AR5K_SIMR2),
120 REG_STRUCT_INIT(AR5K_SIMR3),
121 REG_STRUCT_INIT(AR5K_SIMR4),
122 REG_STRUCT_INIT(AR5K_DCM_ADDR),
123 REG_STRUCT_INIT(AR5K_DCCFG),
124 REG_STRUCT_INIT(AR5K_CCFG),
125 REG_STRUCT_INIT(AR5K_CPC0),
126 REG_STRUCT_INIT(AR5K_CPC1),
127 REG_STRUCT_INIT(AR5K_CPC2),
128 REG_STRUCT_INIT(AR5K_CPC3),
129 REG_STRUCT_INIT(AR5K_CPCOVF),
130 REG_STRUCT_INIT(AR5K_RESET_CTL),
131 REG_STRUCT_INIT(AR5K_SLEEP_CTL),
132 REG_STRUCT_INIT(AR5K_INTPEND),
133 REG_STRUCT_INIT(AR5K_SFR),
134 REG_STRUCT_INIT(AR5K_PCICFG),
135 REG_STRUCT_INIT(AR5K_GPIOCR),
136 REG_STRUCT_INIT(AR5K_GPIODO),
137 REG_STRUCT_INIT(AR5K_SREV),
138};
139
140static void *reg_start(struct seq_file *seq, loff_t *pos)
141{
142 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;
143}
144
145static void reg_stop(struct seq_file *seq, void *p)
146{
147
148}
149
150static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)
151{
152 ++*pos;
153 return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;
154}
155
156static int reg_show(struct seq_file *seq, void *p)
157{
158 struct ath5k_hw *ah = seq->private;
159 struct reg *r = p;
160 seq_printf(seq, "%-25s0x%08x\n", r->name,
161 ath5k_hw_reg_read(ah, r->addr));
162 return 0;
163}
164
165static const struct seq_operations register_seq_ops = {
166 .start = reg_start,
167 .next = reg_next,
168 .stop = reg_stop,
169 .show = reg_show
170};
171
172static int open_file_registers(struct inode *inode, struct file *file)
173{
174 struct seq_file *s;
175 int res;
176 res = seq_open(file, ®ister_seq_ops);
177 if (res == 0) {
178 s = file->private_data;
179 s->private = inode->i_private;
180 }
181 return res;
182}
183
184static const struct file_operations fops_registers = {
185 .open = open_file_registers,
186 .read = seq_read,
187 .llseek = seq_lseek,
188 .release = seq_release,
189 .owner = THIS_MODULE,
190};
191
192
193
194
195static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
196 size_t count, loff_t *ppos)
197{
198 struct ath5k_hw *ah = file->private_data;
199 char buf[500];
200 unsigned int len = 0;
201 unsigned int v;
202 u64 tsf;
203
204 v = ath5k_hw_reg_read(ah, AR5K_BEACON);
205 len += snprintf(buf + len, sizeof(buf) - len,
206 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
207 "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,
208 (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);
209
210 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n",
211 "AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP));
212
213 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n",
214 "AR5K_BEACON_CNT", ath5k_hw_reg_read(ah, AR5K_BEACON_CNT));
215
216 v = ath5k_hw_reg_read(ah, AR5K_TIMER0);
217 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
218 "AR5K_TIMER0 (TBTT)", v, v);
219
220 v = ath5k_hw_reg_read(ah, AR5K_TIMER1);
221 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
222 "AR5K_TIMER1 (DMA)", v, v >> 3);
223
224 v = ath5k_hw_reg_read(ah, AR5K_TIMER2);
225 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
226 "AR5K_TIMER2 (SWBA)", v, v >> 3);
227
228 v = ath5k_hw_reg_read(ah, AR5K_TIMER3);
229 len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
230 "AR5K_TIMER3 (ATIM)", v, v);
231
232 tsf = ath5k_hw_get_tsf64(ah);
233 len += snprintf(buf + len, sizeof(buf) - len,
234 "TSF\t\t0x%016llx\tTU: %08x\n",
235 (unsigned long long)tsf, TSF_TO_TU(tsf));
236
237 if (len > sizeof(buf))
238 len = sizeof(buf);
239
240 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
241}
242
243static ssize_t write_file_beacon(struct file *file,
244 const char __user *userbuf,
245 size_t count, loff_t *ppos)
246{
247 struct ath5k_hw *ah = file->private_data;
248 char buf[20];
249
250 count = min_t(size_t, count, sizeof(buf) - 1);
251 if (copy_from_user(buf, userbuf, count))
252 return -EFAULT;
253
254 buf[count] = '\0';
255 if (strncmp(buf, "disable", 7) == 0) {
256 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
257 pr_info("debugfs disable beacons\n");
258 } else if (strncmp(buf, "enable", 6) == 0) {
259 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
260 pr_info("debugfs enable beacons\n");
261 }
262 return count;
263}
264
265static const struct file_operations fops_beacon = {
266 .read = read_file_beacon,
267 .write = write_file_beacon,
268 .open = simple_open,
269 .owner = THIS_MODULE,
270 .llseek = default_llseek,
271};
272
273
274
275
276static ssize_t write_file_reset(struct file *file,
277 const char __user *userbuf,
278 size_t count, loff_t *ppos)
279{
280 struct ath5k_hw *ah = file->private_data;
281 ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
282 ieee80211_queue_work(ah->hw, &ah->reset_work);
283 return count;
284}
285
286static const struct file_operations fops_reset = {
287 .write = write_file_reset,
288 .open = simple_open,
289 .owner = THIS_MODULE,
290 .llseek = noop_llseek,
291};
292
293
294
295
296static const struct {
297 enum ath5k_debug_level level;
298 const char *name;
299 const char *desc;
300} dbg_info[] = {
301 { ATH5K_DEBUG_RESET, "reset", "reset and initialization" },
302 { ATH5K_DEBUG_INTR, "intr", "interrupt handling" },
303 { ATH5K_DEBUG_MODE, "mode", "mode init/setup" },
304 { ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" },
305 { ATH5K_DEBUG_BEACON, "beacon", "beacon handling" },
306 { ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" },
307 { ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" },
308 { ATH5K_DEBUG_LED, "led", "LED management" },
309 { ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" },
310 { ATH5K_DEBUG_DMA, "dma", "dma start/stop" },
311 { ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" },
312 { ATH5K_DEBUG_DESC, "desc", "descriptor chains" },
313 { ATH5K_DEBUG_ANY, "all", "show all debug levels" },
314};
315
316static ssize_t read_file_debug(struct file *file, char __user *user_buf,
317 size_t count, loff_t *ppos)
318{
319 struct ath5k_hw *ah = file->private_data;
320 char buf[700];
321 unsigned int len = 0;
322 unsigned int i;
323
324 len += snprintf(buf + len, sizeof(buf) - len,
325 "DEBUG LEVEL: 0x%08x\n\n", ah->debug.level);
326
327 for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
328 len += snprintf(buf + len, sizeof(buf) - len,
329 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
330 ah->debug.level & dbg_info[i].level ? '+' : ' ',
331 dbg_info[i].level, dbg_info[i].desc);
332 }
333 len += snprintf(buf + len, sizeof(buf) - len,
334 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
335 ah->debug.level == dbg_info[i].level ? '+' : ' ',
336 dbg_info[i].level, dbg_info[i].desc);
337
338 if (len > sizeof(buf))
339 len = sizeof(buf);
340
341 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
342}
343
344static ssize_t write_file_debug(struct file *file,
345 const char __user *userbuf,
346 size_t count, loff_t *ppos)
347{
348 struct ath5k_hw *ah = file->private_data;
349 unsigned int i;
350 char buf[20];
351
352 count = min_t(size_t, count, sizeof(buf) - 1);
353 if (copy_from_user(buf, userbuf, count))
354 return -EFAULT;
355
356 buf[count] = '\0';
357 for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
358 if (strncmp(buf, dbg_info[i].name,
359 strlen(dbg_info[i].name)) == 0) {
360 ah->debug.level ^= dbg_info[i].level;
361 break;
362 }
363 }
364 return count;
365}
366
367static const struct file_operations fops_debug = {
368 .read = read_file_debug,
369 .write = write_file_debug,
370 .open = simple_open,
371 .owner = THIS_MODULE,
372 .llseek = default_llseek,
373};
374
375
376
377
378static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
379 size_t count, loff_t *ppos)
380{
381 struct ath5k_hw *ah = file->private_data;
382 char buf[700];
383 unsigned int len = 0;
384 unsigned int i;
385 unsigned int v;
386
387 len += snprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n",
388 ah->ah_ant_mode);
389 len += snprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n",
390 ah->ah_def_ant);
391 len += snprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n",
392 ah->ah_tx_ant);
393
394 len += snprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n");
395 for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
396 len += snprintf(buf + len, sizeof(buf) - len,
397 "[antenna %d]\t%d\t%d\n",
398 i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]);
399 }
400 len += snprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n",
401 ah->stats.antenna_rx[0], ah->stats.antenna_tx[0]);
402
403 v = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA);
404 len += snprintf(buf + len, sizeof(buf) - len,
405 "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
406
407 v = ath5k_hw_reg_read(ah, AR5K_STA_ID1);
408 len += snprintf(buf + len, sizeof(buf) - len,
409 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
410 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
411 len += snprintf(buf + len, sizeof(buf) - len,
412 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
413 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
414 len += snprintf(buf + len, sizeof(buf) - len,
415 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
416 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
417 len += snprintf(buf + len, sizeof(buf) - len,
418 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
419 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
420
421 v = ath5k_hw_reg_read(ah, AR5K_PHY_AGCCTL);
422 len += snprintf(buf + len, sizeof(buf) - len,
423 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
424 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
425
426 v = ath5k_hw_reg_read(ah, AR5K_PHY_RESTART);
427 len += snprintf(buf + len, sizeof(buf) - len,
428 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
429 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
430
431 v = ath5k_hw_reg_read(ah, AR5K_PHY_FAST_ANT_DIV);
432 len += snprintf(buf + len, sizeof(buf) - len,
433 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
434 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
435
436 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
437 len += snprintf(buf + len, sizeof(buf) - len,
438 "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
439 v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
440 len += snprintf(buf + len, sizeof(buf) - len,
441 "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
442
443 if (len > sizeof(buf))
444 len = sizeof(buf);
445
446 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
447}
448
449static ssize_t write_file_antenna(struct file *file,
450 const char __user *userbuf,
451 size_t count, loff_t *ppos)
452{
453 struct ath5k_hw *ah = file->private_data;
454 unsigned int i;
455 char buf[20];
456
457 count = min_t(size_t, count, sizeof(buf) - 1);
458 if (copy_from_user(buf, userbuf, count))
459 return -EFAULT;
460
461 buf[count] = '\0';
462 if (strncmp(buf, "diversity", 9) == 0) {
463 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT);
464 pr_info("debug: enable diversity\n");
465 } else if (strncmp(buf, "fixed-a", 7) == 0) {
466 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A);
467 pr_info("debug: fixed antenna A\n");
468 } else if (strncmp(buf, "fixed-b", 7) == 0) {
469 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B);
470 pr_info("debug: fixed antenna B\n");
471 } else if (strncmp(buf, "clear", 5) == 0) {
472 for (i = 0; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
473 ah->stats.antenna_rx[i] = 0;
474 ah->stats.antenna_tx[i] = 0;
475 }
476 pr_info("debug: cleared antenna stats\n");
477 }
478 return count;
479}
480
481static const struct file_operations fops_antenna = {
482 .read = read_file_antenna,
483 .write = write_file_antenna,
484 .open = simple_open,
485 .owner = THIS_MODULE,
486 .llseek = default_llseek,
487};
488
489
490
491static ssize_t read_file_misc(struct file *file, char __user *user_buf,
492 size_t count, loff_t *ppos)
493{
494 struct ath5k_hw *ah = file->private_data;
495 char buf[700];
496 unsigned int len = 0;
497 u32 filt = ath5k_hw_get_rx_filter(ah);
498
499 len += snprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n",
500 ah->bssidmask);
501 len += snprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ",
502 filt);
503 if (filt & AR5K_RX_FILTER_UCAST)
504 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
505 if (filt & AR5K_RX_FILTER_MCAST)
506 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
507 if (filt & AR5K_RX_FILTER_BCAST)
508 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
509 if (filt & AR5K_RX_FILTER_CONTROL)
510 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
511 if (filt & AR5K_RX_FILTER_BEACON)
512 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
513 if (filt & AR5K_RX_FILTER_PROM)
514 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
515 if (filt & AR5K_RX_FILTER_XRPOLL)
516 len += snprintf(buf + len, sizeof(buf) - len, " XRPOLL");
517 if (filt & AR5K_RX_FILTER_PROBEREQ)
518 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
519 if (filt & AR5K_RX_FILTER_PHYERR_5212)
520 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR-5212");
521 if (filt & AR5K_RX_FILTER_RADARERR_5212)
522 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5212");
523 if (filt & AR5K_RX_FILTER_PHYERR_5211)
524 snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211");
525 if (filt & AR5K_RX_FILTER_RADARERR_5211)
526 len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5211");
527
528 len += snprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n",
529 ath_opmode_to_string(ah->opmode), ah->opmode);
530
531 if (len > sizeof(buf))
532 len = sizeof(buf);
533
534 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
535}
536
537static const struct file_operations fops_misc = {
538 .read = read_file_misc,
539 .open = simple_open,
540 .owner = THIS_MODULE,
541};
542
543
544
545
546static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
547 size_t count, loff_t *ppos)
548{
549 struct ath5k_hw *ah = file->private_data;
550 struct ath5k_statistics *st = &ah->stats;
551 char buf[700];
552 unsigned int len = 0;
553 int i;
554
555 len += snprintf(buf + len, sizeof(buf) - len,
556 "RX\n---------------------\n");
557 len += snprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n",
558 st->rxerr_crc,
559 st->rx_all_count > 0 ?
560 st->rxerr_crc * 100 / st->rx_all_count : 0);
561 len += snprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n",
562 st->rxerr_phy,
563 st->rx_all_count > 0 ?
564 st->rxerr_phy * 100 / st->rx_all_count : 0);
565 for (i = 0; i < 32; i++) {
566 if (st->rxerr_phy_code[i])
567 len += snprintf(buf + len, sizeof(buf) - len,
568 " phy_err[%u]\t%u\n",
569 i, st->rxerr_phy_code[i]);
570 }
571
572 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
573 st->rxerr_fifo,
574 st->rx_all_count > 0 ?
575 st->rxerr_fifo * 100 / st->rx_all_count : 0);
576 len += snprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n",
577 st->rxerr_decrypt,
578 st->rx_all_count > 0 ?
579 st->rxerr_decrypt * 100 / st->rx_all_count : 0);
580 len += snprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n",
581 st->rxerr_mic,
582 st->rx_all_count > 0 ?
583 st->rxerr_mic * 100 / st->rx_all_count : 0);
584 len += snprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n",
585 st->rxerr_proc,
586 st->rx_all_count > 0 ?
587 st->rxerr_proc * 100 / st->rx_all_count : 0);
588 len += snprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n",
589 st->rxerr_jumbo,
590 st->rx_all_count > 0 ?
591 st->rxerr_jumbo * 100 / st->rx_all_count : 0);
592 len += snprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n",
593 st->rx_all_count);
594 len += snprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n",
595 st->rx_bytes_count);
596
597 len += snprintf(buf + len, sizeof(buf) - len,
598 "\nTX\n---------------------\n");
599 len += snprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n",
600 st->txerr_retry,
601 st->tx_all_count > 0 ?
602 st->txerr_retry * 100 / st->tx_all_count : 0);
603 len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
604 st->txerr_fifo,
605 st->tx_all_count > 0 ?
606 st->txerr_fifo * 100 / st->tx_all_count : 0);
607 len += snprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n",
608 st->txerr_filt,
609 st->tx_all_count > 0 ?
610 st->txerr_filt * 100 / st->tx_all_count : 0);
611 len += snprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n",
612 st->tx_all_count);
613 len += snprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n",
614 st->tx_bytes_count);
615
616 if (len > sizeof(buf))
617 len = sizeof(buf);
618
619 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
620}
621
622static ssize_t write_file_frameerrors(struct file *file,
623 const char __user *userbuf,
624 size_t count, loff_t *ppos)
625{
626 struct ath5k_hw *ah = file->private_data;
627 struct ath5k_statistics *st = &ah->stats;
628 char buf[20];
629
630 count = min_t(size_t, count, sizeof(buf) - 1);
631 if (copy_from_user(buf, userbuf, count))
632 return -EFAULT;
633
634 buf[count] = '\0';
635 if (strncmp(buf, "clear", 5) == 0) {
636 st->rxerr_crc = 0;
637 st->rxerr_phy = 0;
638 st->rxerr_fifo = 0;
639 st->rxerr_decrypt = 0;
640 st->rxerr_mic = 0;
641 st->rxerr_proc = 0;
642 st->rxerr_jumbo = 0;
643 st->rx_all_count = 0;
644 st->txerr_retry = 0;
645 st->txerr_fifo = 0;
646 st->txerr_filt = 0;
647 st->tx_all_count = 0;
648 pr_info("debug: cleared frameerrors stats\n");
649 }
650 return count;
651}
652
653static const struct file_operations fops_frameerrors = {
654 .read = read_file_frameerrors,
655 .write = write_file_frameerrors,
656 .open = simple_open,
657 .owner = THIS_MODULE,
658 .llseek = default_llseek,
659};
660
661
662
663
664static ssize_t read_file_ani(struct file *file, char __user *user_buf,
665 size_t count, loff_t *ppos)
666{
667 struct ath5k_hw *ah = file->private_data;
668 struct ath5k_statistics *st = &ah->stats;
669 struct ath5k_ani_state *as = &ah->ani_state;
670
671 char buf[700];
672 unsigned int len = 0;
673
674 len += snprintf(buf + len, sizeof(buf) - len,
675 "HW has PHY error counters:\t%s\n",
676 ah->ah_capabilities.cap_has_phyerr_counters ?
677 "yes" : "no");
678 len += snprintf(buf + len, sizeof(buf) - len,
679 "HW max spur immunity level:\t%d\n",
680 as->max_spur_level);
681 len += snprintf(buf + len, sizeof(buf) - len,
682 "\nANI state\n--------------------------------------------\n");
683 len += snprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t");
684 switch (as->ani_mode) {
685 case ATH5K_ANI_MODE_OFF:
686 len += snprintf(buf + len, sizeof(buf) - len, "OFF\n");
687 break;
688 case ATH5K_ANI_MODE_MANUAL_LOW:
689 len += snprintf(buf + len, sizeof(buf) - len,
690 "MANUAL LOW\n");
691 break;
692 case ATH5K_ANI_MODE_MANUAL_HIGH:
693 len += snprintf(buf + len, sizeof(buf) - len,
694 "MANUAL HIGH\n");
695 break;
696 case ATH5K_ANI_MODE_AUTO:
697 len += snprintf(buf + len, sizeof(buf) - len, "AUTO\n");
698 break;
699 default:
700 len += snprintf(buf + len, sizeof(buf) - len,
701 "??? (not good)\n");
702 break;
703 }
704 len += snprintf(buf + len, sizeof(buf) - len,
705 "noise immunity level:\t\t%d\n",
706 as->noise_imm_level);
707 len += snprintf(buf + len, sizeof(buf) - len,
708 "spur immunity level:\t\t%d\n",
709 as->spur_level);
710 len += snprintf(buf + len, sizeof(buf) - len,
711 "firstep level:\t\t\t%d\n",
712 as->firstep_level);
713 len += snprintf(buf + len, sizeof(buf) - len,
714 "OFDM weak signal detection:\t%s\n",
715 as->ofdm_weak_sig ? "on" : "off");
716 len += snprintf(buf + len, sizeof(buf) - len,
717 "CCK weak signal detection:\t%s\n",
718 as->cck_weak_sig ? "on" : "off");
719
720 len += snprintf(buf + len, sizeof(buf) - len,
721 "\nMIB INTERRUPTS:\t\t%u\n",
722 st->mib_intr);
723 len += snprintf(buf + len, sizeof(buf) - len,
724 "beacon RSSI average:\t%d\n",
725 (int)ewma_beacon_rssi_read(&ah->ah_beacon_rssi_avg));
726
727#define CC_PRINT(_struct, _field) \
728 _struct._field, \
729 _struct.cycles > 0 ? \
730 _struct._field * 100 / _struct.cycles : 0
731
732 len += snprintf(buf + len, sizeof(buf) - len,
733 "profcnt tx\t\t%u\t(%d%%)\n",
734 CC_PRINT(as->last_cc, tx_frame));
735 len += snprintf(buf + len, sizeof(buf) - len,
736 "profcnt rx\t\t%u\t(%d%%)\n",
737 CC_PRINT(as->last_cc, rx_frame));
738 len += snprintf(buf + len, sizeof(buf) - len,
739 "profcnt busy\t\t%u\t(%d%%)\n",
740 CC_PRINT(as->last_cc, rx_busy));
741#undef CC_PRINT
742 len += snprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n",
743 as->last_cc.cycles);
744 len += snprintf(buf + len, sizeof(buf) - len,
745 "listen time\t\t%d\tlast: %d\n",
746 as->listen_time, as->last_listen);
747 len += snprintf(buf + len, sizeof(buf) - len,
748 "OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
749 as->ofdm_errors, as->last_ofdm_errors,
750 as->sum_ofdm_errors);
751 len += snprintf(buf + len, sizeof(buf) - len,
752 "CCK errors\t\t%u\tlast: %u\tsum: %u\n",
753 as->cck_errors, as->last_cck_errors,
754 as->sum_cck_errors);
755 len += snprintf(buf + len, sizeof(buf) - len,
756 "AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
757 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1),
758 ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
759 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1)));
760 len += snprintf(buf + len, sizeof(buf) - len,
761 "AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
762 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2),
763 ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
764 ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2)));
765
766 if (len > sizeof(buf))
767 len = sizeof(buf);
768
769 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
770}
771
772static ssize_t write_file_ani(struct file *file,
773 const char __user *userbuf,
774 size_t count, loff_t *ppos)
775{
776 struct ath5k_hw *ah = file->private_data;
777 char buf[20];
778
779 count = min_t(size_t, count, sizeof(buf) - 1);
780 if (copy_from_user(buf, userbuf, count))
781 return -EFAULT;
782
783 buf[count] = '\0';
784 if (strncmp(buf, "sens-low", 8) == 0) {
785 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_HIGH);
786 } else if (strncmp(buf, "sens-high", 9) == 0) {
787 ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_LOW);
788 } else if (strncmp(buf, "ani-off", 7) == 0) {
789 ath5k_ani_init(ah, ATH5K_ANI_MODE_OFF);
790 } else if (strncmp(buf, "ani-on", 6) == 0) {
791 ath5k_ani_init(ah, ATH5K_ANI_MODE_AUTO);
792 } else if (strncmp(buf, "noise-low", 9) == 0) {
793 ath5k_ani_set_noise_immunity_level(ah, 0);
794 } else if (strncmp(buf, "noise-high", 10) == 0) {
795 ath5k_ani_set_noise_immunity_level(ah,
796 ATH5K_ANI_MAX_NOISE_IMM_LVL);
797 } else if (strncmp(buf, "spur-low", 8) == 0) {
798 ath5k_ani_set_spur_immunity_level(ah, 0);
799 } else if (strncmp(buf, "spur-high", 9) == 0) {
800 ath5k_ani_set_spur_immunity_level(ah,
801 ah->ani_state.max_spur_level);
802 } else if (strncmp(buf, "fir-low", 7) == 0) {
803 ath5k_ani_set_firstep_level(ah, 0);
804 } else if (strncmp(buf, "fir-high", 8) == 0) {
805 ath5k_ani_set_firstep_level(ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
806 } else if (strncmp(buf, "ofdm-off", 8) == 0) {
807 ath5k_ani_set_ofdm_weak_signal_detection(ah, false);
808 } else if (strncmp(buf, "ofdm-on", 7) == 0) {
809 ath5k_ani_set_ofdm_weak_signal_detection(ah, true);
810 } else if (strncmp(buf, "cck-off", 7) == 0) {
811 ath5k_ani_set_cck_weak_signal_detection(ah, false);
812 } else if (strncmp(buf, "cck-on", 6) == 0) {
813 ath5k_ani_set_cck_weak_signal_detection(ah, true);
814 }
815 return count;
816}
817
818static const struct file_operations fops_ani = {
819 .read = read_file_ani,
820 .write = write_file_ani,
821 .open = simple_open,
822 .owner = THIS_MODULE,
823 .llseek = default_llseek,
824};
825
826
827
828
829static ssize_t read_file_queue(struct file *file, char __user *user_buf,
830 size_t count, loff_t *ppos)
831{
832 struct ath5k_hw *ah = file->private_data;
833 char buf[700];
834 unsigned int len = 0;
835
836 struct ath5k_txq *txq;
837 struct ath5k_buf *bf, *bf0;
838 int i, n;
839
840 len += snprintf(buf + len, sizeof(buf) - len,
841 "available txbuffers: %d\n", ah->txbuf_len);
842
843 for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) {
844 txq = &ah->txqs[i];
845
846 len += snprintf(buf + len, sizeof(buf) - len,
847 "%02d: %ssetup\n", i, txq->setup ? "" : "not ");
848
849 if (!txq->setup)
850 continue;
851
852 n = 0;
853 spin_lock_bh(&txq->lock);
854 list_for_each_entry_safe(bf, bf0, &txq->q, list)
855 n++;
856 spin_unlock_bh(&txq->lock);
857
858 len += snprintf(buf + len, sizeof(buf) - len,
859 " len: %d bufs: %d\n", txq->txq_len, n);
860 len += snprintf(buf + len, sizeof(buf) - len,
861 " stuck: %d\n", txq->txq_stuck);
862 }
863
864 if (len > sizeof(buf))
865 len = sizeof(buf);
866
867 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
868}
869
870static ssize_t write_file_queue(struct file *file,
871 const char __user *userbuf,
872 size_t count, loff_t *ppos)
873{
874 struct ath5k_hw *ah = file->private_data;
875 char buf[20];
876
877 count = min_t(size_t, count, sizeof(buf) - 1);
878 if (copy_from_user(buf, userbuf, count))
879 return -EFAULT;
880
881 buf[count] = '\0';
882 if (strncmp(buf, "start", 5) == 0)
883 ieee80211_wake_queues(ah->hw);
884 else if (strncmp(buf, "stop", 4) == 0)
885 ieee80211_stop_queues(ah->hw);
886
887 return count;
888}
889
890
891static const struct file_operations fops_queue = {
892 .read = read_file_queue,
893 .write = write_file_queue,
894 .open = simple_open,
895 .owner = THIS_MODULE,
896 .llseek = default_llseek,
897};
898
899
900
901struct eeprom_private {
902 u16 *buf;
903 int len;
904};
905
906static int open_file_eeprom(struct inode *inode, struct file *file)
907{
908 struct eeprom_private *ep;
909 struct ath5k_hw *ah = inode->i_private;
910 bool res;
911 int i, ret;
912 u32 eesize;
913 u16 val, *buf;
914
915
916
917 res = ath5k_hw_nvram_read(ah, AR5K_EEPROM_SIZE_UPPER, &val);
918 if (!res)
919 return -EACCES;
920
921 if (val == 0) {
922 eesize = AR5K_EEPROM_INFO_MAX + AR5K_EEPROM_INFO_BASE;
923 } else {
924 eesize = (val & AR5K_EEPROM_SIZE_UPPER_MASK) <<
925 AR5K_EEPROM_SIZE_ENDLOC_SHIFT;
926 ath5k_hw_nvram_read(ah, AR5K_EEPROM_SIZE_LOWER, &val);
927 eesize = eesize | val;
928 }
929
930 if (eesize > 4096)
931 return -EINVAL;
932
933
934
935 buf = vmalloc(eesize);
936 if (!buf) {
937 ret = -ENOMEM;
938 goto err;
939 }
940
941 for (i = 0; i < eesize; ++i) {
942 AR5K_EEPROM_READ(i, val);
943 buf[i] = val;
944 }
945
946
947
948 ep = kmalloc(sizeof(*ep), GFP_KERNEL);
949 if (!ep) {
950 ret = -ENOMEM;
951 goto freebuf;
952 }
953
954 ep->buf = buf;
955 ep->len = i;
956
957 file->private_data = (void *)ep;
958
959 return 0;
960
961freebuf:
962 vfree(buf);
963err:
964 return ret;
965
966}
967
968static ssize_t read_file_eeprom(struct file *file, char __user *user_buf,
969 size_t count, loff_t *ppos)
970{
971 struct eeprom_private *ep = file->private_data;
972
973 return simple_read_from_buffer(user_buf, count, ppos, ep->buf, ep->len);
974}
975
976static int release_file_eeprom(struct inode *inode, struct file *file)
977{
978 struct eeprom_private *ep = file->private_data;
979
980 vfree(ep->buf);
981 kfree(ep);
982
983 return 0;
984}
985
986static const struct file_operations fops_eeprom = {
987 .open = open_file_eeprom,
988 .read = read_file_eeprom,
989 .release = release_file_eeprom,
990 .owner = THIS_MODULE,
991};
992
993
994void
995ath5k_debug_init_device(struct ath5k_hw *ah)
996{
997 struct dentry *phydir;
998
999 ah->debug.level = ath5k_debug;
1000
1001 phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir);
1002 if (!phydir)
1003 return;
1004
1005 debugfs_create_file("debug", S_IWUSR | S_IRUSR, phydir, ah,
1006 &fops_debug);
1007
1008 debugfs_create_file("registers", S_IRUSR, phydir, ah, &fops_registers);
1009
1010 debugfs_create_file("beacon", S_IWUSR | S_IRUSR, phydir, ah,
1011 &fops_beacon);
1012
1013 debugfs_create_file("reset", S_IWUSR, phydir, ah, &fops_reset);
1014
1015 debugfs_create_file("antenna", S_IWUSR | S_IRUSR, phydir, ah,
1016 &fops_antenna);
1017
1018 debugfs_create_file("misc", S_IRUSR, phydir, ah, &fops_misc);
1019
1020 debugfs_create_file("eeprom", S_IRUSR, phydir, ah, &fops_eeprom);
1021
1022 debugfs_create_file("frameerrors", S_IWUSR | S_IRUSR, phydir, ah,
1023 &fops_frameerrors);
1024
1025 debugfs_create_file("ani", S_IWUSR | S_IRUSR, phydir, ah, &fops_ani);
1026
1027 debugfs_create_file("queue", S_IWUSR | S_IRUSR, phydir, ah,
1028 &fops_queue);
1029
1030 debugfs_create_bool("32khz_clock", S_IWUSR | S_IRUSR, phydir,
1031 &ah->ah_use_32khz_clock);
1032}
1033
1034
1035
1036void
1037ath5k_debug_dump_bands(struct ath5k_hw *ah)
1038{
1039 unsigned int b, i;
1040
1041 if (likely(!(ah->debug.level & ATH5K_DEBUG_DUMPBANDS)))
1042 return;
1043
1044 BUG_ON(!ah->sbands);
1045
1046 for (b = 0; b < NUM_NL80211_BANDS; b++) {
1047 struct ieee80211_supported_band *band = &ah->sbands[b];
1048 char bname[6];
1049 switch (band->band) {
1050 case NL80211_BAND_2GHZ:
1051 strcpy(bname, "2 GHz");
1052 break;
1053 case NL80211_BAND_5GHZ:
1054 strcpy(bname, "5 GHz");
1055 break;
1056 default:
1057 printk(KERN_DEBUG "Band not supported: %d\n",
1058 band->band);
1059 return;
1060 }
1061 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
1062 band->n_channels, band->n_bitrates);
1063 printk(KERN_DEBUG " channels:\n");
1064 for (i = 0; i < band->n_channels; i++)
1065 printk(KERN_DEBUG " %3d %d %.4x %.4x\n",
1066 ieee80211_frequency_to_channel(
1067 band->channels[i].center_freq),
1068 band->channels[i].center_freq,
1069 band->channels[i].hw_value,
1070 band->channels[i].flags);
1071 printk(KERN_DEBUG " rates:\n");
1072 for (i = 0; i < band->n_bitrates; i++)
1073 printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n",
1074 band->bitrates[i].bitrate,
1075 band->bitrates[i].hw_value,
1076 band->bitrates[i].flags,
1077 band->bitrates[i].hw_value_short);
1078 }
1079}
1080
1081static inline void
1082ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
1083 struct ath5k_rx_status *rs)
1084{
1085 struct ath5k_desc *ds = bf->desc;
1086 struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
1087
1088 printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
1089 ds, (unsigned long long)bf->daddr,
1090 ds->ds_link, ds->ds_data,
1091 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
1092 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
1093 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
1094}
1095
1096void
1097ath5k_debug_printrxbuffs(struct ath5k_hw *ah)
1098{
1099 struct ath5k_desc *ds;
1100 struct ath5k_buf *bf;
1101 struct ath5k_rx_status rs = {};
1102 int status;
1103
1104 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
1105 return;
1106
1107 printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
1108 ath5k_hw_get_rxdp(ah), ah->rxlink);
1109
1110 spin_lock_bh(&ah->rxbuflock);
1111 list_for_each_entry(bf, &ah->rxbuf, list) {
1112 ds = bf->desc;
1113 status = ah->ah_proc_rx_desc(ah, ds, &rs);
1114 if (!status)
1115 ath5k_debug_printrxbuf(bf, status == 0, &rs);
1116 }
1117 spin_unlock_bh(&ah->rxbuflock);
1118}
1119
1120void
1121ath5k_debug_printtxbuf(struct ath5k_hw *ah, struct ath5k_buf *bf)
1122{
1123 struct ath5k_desc *ds = bf->desc;
1124 struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
1125 struct ath5k_tx_status ts = {};
1126 int done;
1127
1128 if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
1129 return;
1130
1131 done = ah->ah_proc_tx_desc(ah, bf->desc, &ts);
1132
1133 printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
1134 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
1135 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
1136 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
1137 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
1138 done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
1139}
1140
