2 * Copyright (c) 2008-2009 Atheros Communications Inc.
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.
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.
17 #include <linux/slab.h>
18 #include <asm/unaligned.h>
22 #define REG_WRITE_D(_ah, _reg, _val) \
23 ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg))
24 #define REG_READ_D(_ah, _reg) \
25 ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
27 static struct dentry *ath9k_debugfs_root;
29 static int ath9k_debugfs_open(struct inode *inode, struct file *file)
31 file->private_data = inode->i_private;
35 #ifdef CONFIG_ATH_DEBUG
37 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
38 size_t count, loff_t *ppos)
40 struct ath_softc *sc = file->private_data;
41 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
45 len = snprintf(buf, sizeof(buf), "0x%08x\n", common->debug_mask);
46 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
49 static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
50 size_t count, loff_t *ppos)
52 struct ath_softc *sc = file->private_data;
53 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
58 len = min(count, sizeof(buf) - 1);
59 if (copy_from_user(buf, user_buf, len))
63 if (strict_strtoul(buf, 0, &mask))
66 common->debug_mask = mask;
70 static const struct file_operations fops_debug = {
71 .read = read_file_debug,
72 .write = write_file_debug,
73 .open = ath9k_debugfs_open,
79 #define DMA_BUF_LEN 1024
81 static ssize_t read_file_tx_chainmask(struct file *file, char __user *user_buf,
82 size_t count, loff_t *ppos)
84 struct ath_softc *sc = file->private_data;
85 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
89 len = snprintf(buf, sizeof(buf), "0x%08x\n", common->tx_chainmask);
90 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
93 static ssize_t write_file_tx_chainmask(struct file *file, const char __user *user_buf,
94 size_t count, loff_t *ppos)
96 struct ath_softc *sc = file->private_data;
97 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
102 len = min(count, sizeof(buf) - 1);
103 if (copy_from_user(buf, user_buf, len))
107 if (strict_strtoul(buf, 0, &mask))
110 common->tx_chainmask = mask;
111 sc->sc_ah->caps.tx_chainmask = mask;
115 static const struct file_operations fops_tx_chainmask = {
116 .read = read_file_tx_chainmask,
117 .write = write_file_tx_chainmask,
118 .open = ath9k_debugfs_open,
123 static ssize_t read_file_rx_chainmask(struct file *file, char __user *user_buf,
124 size_t count, loff_t *ppos)
126 struct ath_softc *sc = file->private_data;
127 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
131 len = snprintf(buf, sizeof(buf), "0x%08x\n", common->rx_chainmask);
132 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
135 static ssize_t write_file_rx_chainmask(struct file *file, const char __user *user_buf,
136 size_t count, loff_t *ppos)
138 struct ath_softc *sc = file->private_data;
139 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
144 len = min(count, sizeof(buf) - 1);
145 if (copy_from_user(buf, user_buf, len))
149 if (strict_strtoul(buf, 0, &mask))
152 common->rx_chainmask = mask;
153 sc->sc_ah->caps.rx_chainmask = mask;
157 static const struct file_operations fops_rx_chainmask = {
158 .read = read_file_rx_chainmask,
159 .write = write_file_rx_chainmask,
160 .open = ath9k_debugfs_open,
165 static ssize_t read_file_dma(struct file *file, char __user *user_buf,
166 size_t count, loff_t *ppos)
168 struct ath_softc *sc = file->private_data;
169 struct ath_hw *ah = sc->sc_ah;
172 unsigned int len = 0;
173 u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
174 int i, qcuOffset = 0, dcuOffset = 0;
175 u32 *qcuBase = &val[0], *dcuBase = &val[4];
177 buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
183 REG_WRITE_D(ah, AR_MACMISC,
184 ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
185 (AR_MACMISC_MISC_OBS_BUS_1 <<
186 AR_MACMISC_MISC_OBS_BUS_MSB_S)));
188 len += snprintf(buf + len, DMA_BUF_LEN - len,
189 "Raw DMA Debug values:\n");
191 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
193 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
195 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
196 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
200 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
201 len += snprintf(buf + len, DMA_BUF_LEN - len,
202 "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
204 for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
215 len += snprintf(buf + len, DMA_BUF_LEN - len,
216 "%2d %2x %1x %2x %2x\n",
217 i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
218 (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
219 val[2] & (0x7 << (i * 3)) >> (i * 3),
220 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
223 len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
225 len += snprintf(buf + len, DMA_BUF_LEN - len,
226 "qcu_stitch state: %2x qcu_fetch state: %2x\n",
227 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
228 len += snprintf(buf + len, DMA_BUF_LEN - len,
229 "qcu_complete state: %2x dcu_complete state: %2x\n",
230 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
231 len += snprintf(buf + len, DMA_BUF_LEN - len,
232 "dcu_arb state: %2x dcu_fp state: %2x\n",
233 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
234 len += snprintf(buf + len, DMA_BUF_LEN - len,
235 "chan_idle_dur: %3d chan_idle_dur_valid: %1d\n",
236 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
237 len += snprintf(buf + len, DMA_BUF_LEN - len,
238 "txfifo_valid_0: %1d txfifo_valid_1: %1d\n",
239 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
240 len += snprintf(buf + len, DMA_BUF_LEN - len,
241 "txfifo_dcu_num_0: %2d txfifo_dcu_num_1: %2d\n",
242 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
244 len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
245 REG_READ_D(ah, AR_OBS_BUS_1));
246 len += snprintf(buf + len, DMA_BUF_LEN - len,
247 "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
249 ath9k_ps_restore(sc);
251 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
256 static const struct file_operations fops_dma = {
257 .read = read_file_dma,
258 .open = ath9k_debugfs_open,
263 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
266 sc->debug.stats.istats.total++;
267 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
268 if (status & ATH9K_INT_RXLP)
269 sc->debug.stats.istats.rxlp++;
270 if (status & ATH9K_INT_RXHP)
271 sc->debug.stats.istats.rxhp++;
272 if (status & ATH9K_INT_BB_WATCHDOG)
273 sc->debug.stats.istats.bb_watchdog++;
275 if (status & ATH9K_INT_RX)
276 sc->debug.stats.istats.rxok++;
278 if (status & ATH9K_INT_RXEOL)
279 sc->debug.stats.istats.rxeol++;
280 if (status & ATH9K_INT_RXORN)
281 sc->debug.stats.istats.rxorn++;
282 if (status & ATH9K_INT_TX)
283 sc->debug.stats.istats.txok++;
284 if (status & ATH9K_INT_TXURN)
285 sc->debug.stats.istats.txurn++;
286 if (status & ATH9K_INT_MIB)
287 sc->debug.stats.istats.mib++;
288 if (status & ATH9K_INT_RXPHY)
289 sc->debug.stats.istats.rxphyerr++;
290 if (status & ATH9K_INT_RXKCM)
291 sc->debug.stats.istats.rx_keycache_miss++;
292 if (status & ATH9K_INT_SWBA)
293 sc->debug.stats.istats.swba++;
294 if (status & ATH9K_INT_BMISS)
295 sc->debug.stats.istats.bmiss++;
296 if (status & ATH9K_INT_BNR)
297 sc->debug.stats.istats.bnr++;
298 if (status & ATH9K_INT_CST)
299 sc->debug.stats.istats.cst++;
300 if (status & ATH9K_INT_GTT)
301 sc->debug.stats.istats.gtt++;
302 if (status & ATH9K_INT_TIM)
303 sc->debug.stats.istats.tim++;
304 if (status & ATH9K_INT_CABEND)
305 sc->debug.stats.istats.cabend++;
306 if (status & ATH9K_INT_DTIMSYNC)
307 sc->debug.stats.istats.dtimsync++;
308 if (status & ATH9K_INT_DTIM)
309 sc->debug.stats.istats.dtim++;
312 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
313 size_t count, loff_t *ppos)
315 struct ath_softc *sc = file->private_data;
317 unsigned int len = 0;
319 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
320 len += snprintf(buf + len, sizeof(buf) - len,
321 "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp);
322 len += snprintf(buf + len, sizeof(buf) - len,
323 "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp);
324 len += snprintf(buf + len, sizeof(buf) - len,
325 "%8s: %10u\n", "WATCHDOG",
326 sc->debug.stats.istats.bb_watchdog);
328 len += snprintf(buf + len, sizeof(buf) - len,
329 "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
331 len += snprintf(buf + len, sizeof(buf) - len,
332 "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol);
333 len += snprintf(buf + len, sizeof(buf) - len,
334 "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn);
335 len += snprintf(buf + len, sizeof(buf) - len,
336 "%8s: %10u\n", "TX", sc->debug.stats.istats.txok);
337 len += snprintf(buf + len, sizeof(buf) - len,
338 "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn);
339 len += snprintf(buf + len, sizeof(buf) - len,
340 "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib);
341 len += snprintf(buf + len, sizeof(buf) - len,
342 "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr);
343 len += snprintf(buf + len, sizeof(buf) - len,
344 "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss);
345 len += snprintf(buf + len, sizeof(buf) - len,
346 "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba);
347 len += snprintf(buf + len, sizeof(buf) - len,
348 "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss);
349 len += snprintf(buf + len, sizeof(buf) - len,
350 "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr);
351 len += snprintf(buf + len, sizeof(buf) - len,
352 "%8s: %10u\n", "CST", sc->debug.stats.istats.cst);
353 len += snprintf(buf + len, sizeof(buf) - len,
354 "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt);
355 len += snprintf(buf + len, sizeof(buf) - len,
356 "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim);
357 len += snprintf(buf + len, sizeof(buf) - len,
358 "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend);
359 len += snprintf(buf + len, sizeof(buf) - len,
360 "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync);
361 len += snprintf(buf + len, sizeof(buf) - len,
362 "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
363 len += snprintf(buf + len, sizeof(buf) - len,
364 "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
366 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
369 static const struct file_operations fops_interrupt = {
370 .read = read_file_interrupt,
371 .open = ath9k_debugfs_open,
375 void ath_debug_stat_rc(struct ath_softc *sc, int final_rate)
377 struct ath_rc_stats *stats;
379 stats = &sc->debug.stats.rcstats[final_rate];
383 void ath_debug_stat_retries(struct ath_softc *sc, int rix,
384 int xretries, int retries, u8 per)
386 struct ath_rc_stats *stats = &sc->debug.stats.rcstats[rix];
388 stats->xretries += xretries;
389 stats->retries += retries;
393 static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
394 size_t count, loff_t *ppos)
396 struct ath_softc *sc = file->private_data;
398 unsigned int len = 0, max;
402 if (sc->cur_rate_table == NULL)
405 max = 80 + sc->cur_rate_table->rate_cnt * 1024;
406 buf = kmalloc(max + 1, GFP_KERNEL);
411 len += sprintf(buf, "%6s %6s %6s "
412 "%10s %10s %10s %10s\n",
414 "Success", "Retries", "XRetries", "PER");
416 for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) {
417 u32 ratekbps = sc->cur_rate_table->info[i].ratekbps;
418 struct ath_rc_stats *stats = &sc->debug.stats.rcstats[i];
421 int used_mcs = 0, used_htmode = 0;
423 if (WLAN_RC_PHY_HT(sc->cur_rate_table->info[i].phy)) {
424 used_mcs = snprintf(mcs, 5, "%d",
425 sc->cur_rate_table->info[i].ratecode);
427 if (WLAN_RC_PHY_40(sc->cur_rate_table->info[i].phy))
428 used_htmode = snprintf(htmode, 5, "HT40");
429 else if (WLAN_RC_PHY_20(sc->cur_rate_table->info[i].phy))
430 used_htmode = snprintf(htmode, 5, "HT20");
432 used_htmode = snprintf(htmode, 5, "????");
435 mcs[used_mcs] = '\0';
436 htmode[used_htmode] = '\0';
438 len += snprintf(buf + len, max - len,
440 "%10u %10u %10u %10u\n",
444 (ratekbps % 1000) / 100,
451 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
456 static const struct file_operations fops_rcstat = {
457 .read = read_file_rcstat,
458 .open = ath9k_debugfs_open,
462 static const char * ath_wiphy_state_str(enum ath_wiphy_state state)
465 case ATH_WIPHY_INACTIVE:
467 case ATH_WIPHY_ACTIVE:
469 case ATH_WIPHY_PAUSING:
471 case ATH_WIPHY_PAUSED:
479 static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
480 size_t count, loff_t *ppos)
482 struct ath_softc *sc = file->private_data;
484 unsigned int len = 0;
488 len += snprintf(buf + len, sizeof(buf) - len,
489 "primary: %s (%s chan=%d ht=%d)\n",
490 wiphy_name(sc->pri_wiphy->hw->wiphy),
491 ath_wiphy_state_str(sc->pri_wiphy->state),
492 sc->pri_wiphy->chan_idx, sc->pri_wiphy->chan_is_ht);
493 for (i = 0; i < sc->num_sec_wiphy; i++) {
494 struct ath_wiphy *aphy = sc->sec_wiphy[i];
497 len += snprintf(buf + len, sizeof(buf) - len,
498 "secondary: %s (%s chan=%d ht=%d)\n",
499 wiphy_name(aphy->hw->wiphy),
500 ath_wiphy_state_str(aphy->state),
501 aphy->chan_idx, aphy->chan_is_ht);
504 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
505 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
506 len += snprintf(buf + len, sizeof(buf) - len,
507 "addr: %pM\n", addr);
508 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr);
509 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
510 len += snprintf(buf + len, sizeof(buf) - len,
511 "addrmask: %pM\n", addr);
513 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
516 static struct ath_wiphy * get_wiphy(struct ath_softc *sc, const char *name)
519 if (strcmp(name, wiphy_name(sc->pri_wiphy->hw->wiphy)) == 0)
520 return sc->pri_wiphy;
521 for (i = 0; i < sc->num_sec_wiphy; i++) {
522 struct ath_wiphy *aphy = sc->sec_wiphy[i];
523 if (aphy && strcmp(name, wiphy_name(aphy->hw->wiphy)) == 0)
529 static int del_wiphy(struct ath_softc *sc, const char *name)
531 struct ath_wiphy *aphy = get_wiphy(sc, name);
534 return ath9k_wiphy_del(aphy);
537 static int pause_wiphy(struct ath_softc *sc, const char *name)
539 struct ath_wiphy *aphy = get_wiphy(sc, name);
542 return ath9k_wiphy_pause(aphy);
545 static int unpause_wiphy(struct ath_softc *sc, const char *name)
547 struct ath_wiphy *aphy = get_wiphy(sc, name);
550 return ath9k_wiphy_unpause(aphy);
553 static int select_wiphy(struct ath_softc *sc, const char *name)
555 struct ath_wiphy *aphy = get_wiphy(sc, name);
558 return ath9k_wiphy_select(aphy);
561 static int schedule_wiphy(struct ath_softc *sc, const char *msec)
563 ath9k_wiphy_set_scheduler(sc, simple_strtoul(msec, NULL, 0));
567 static ssize_t write_file_wiphy(struct file *file, const char __user *user_buf,
568 size_t count, loff_t *ppos)
570 struct ath_softc *sc = file->private_data;
574 len = min(count, sizeof(buf) - 1);
575 if (copy_from_user(buf, user_buf, len))
578 if (len > 0 && buf[len - 1] == '\n')
581 if (strncmp(buf, "add", 3) == 0) {
582 int res = ath9k_wiphy_add(sc);
585 } else if (strncmp(buf, "del=", 4) == 0) {
586 int res = del_wiphy(sc, buf + 4);
589 } else if (strncmp(buf, "pause=", 6) == 0) {
590 int res = pause_wiphy(sc, buf + 6);
593 } else if (strncmp(buf, "unpause=", 8) == 0) {
594 int res = unpause_wiphy(sc, buf + 8);
597 } else if (strncmp(buf, "select=", 7) == 0) {
598 int res = select_wiphy(sc, buf + 7);
601 } else if (strncmp(buf, "schedule=", 9) == 0) {
602 int res = schedule_wiphy(sc, buf + 9);
611 static const struct file_operations fops_wiphy = {
612 .read = read_file_wiphy,
613 .write = write_file_wiphy,
614 .open = ath9k_debugfs_open,
618 #define PR(str, elem) \
620 len += snprintf(buf + len, size - len, \
621 "%s%13u%11u%10u%10u\n", str, \
622 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BE]].elem, \
623 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BK]].elem, \
624 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VI]].elem, \
625 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VO]].elem); \
628 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
629 size_t count, loff_t *ppos)
631 struct ath_softc *sc = file->private_data;
633 unsigned int len = 0, size = 2048;
636 buf = kzalloc(size, GFP_KERNEL);
640 len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
642 PR("MPDUs Queued: ", queued);
643 PR("MPDUs Completed: ", completed);
644 PR("Aggregates: ", a_aggr);
645 PR("AMPDUs Queued: ", a_queued);
646 PR("AMPDUs Completed:", a_completed);
647 PR("AMPDUs Retried: ", a_retries);
648 PR("AMPDUs XRetried: ", a_xretries);
649 PR("FIFO Underrun: ", fifo_underrun);
650 PR("TXOP Exceeded: ", xtxop);
651 PR("TXTIMER Expiry: ", timer_exp);
652 PR("DESC CFG Error: ", desc_cfg_err);
653 PR("DATA Underrun: ", data_underrun);
654 PR("DELIM Underrun: ", delim_underrun);
656 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
662 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
663 struct ath_buf *bf, struct ath_tx_status *ts)
665 if (bf_isampdu(bf)) {
666 if (bf_isxretried(bf))
667 TX_STAT_INC(txq->axq_qnum, a_xretries);
669 TX_STAT_INC(txq->axq_qnum, a_completed);
671 TX_STAT_INC(txq->axq_qnum, completed);
674 if (ts->ts_status & ATH9K_TXERR_FIFO)
675 TX_STAT_INC(txq->axq_qnum, fifo_underrun);
676 if (ts->ts_status & ATH9K_TXERR_XTXOP)
677 TX_STAT_INC(txq->axq_qnum, xtxop);
678 if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
679 TX_STAT_INC(txq->axq_qnum, timer_exp);
680 if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
681 TX_STAT_INC(txq->axq_qnum, desc_cfg_err);
682 if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
683 TX_STAT_INC(txq->axq_qnum, data_underrun);
684 if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
685 TX_STAT_INC(txq->axq_qnum, delim_underrun);
688 static const struct file_operations fops_xmit = {
689 .read = read_file_xmit,
690 .open = ath9k_debugfs_open,
694 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
695 size_t count, loff_t *ppos)
697 #define PHY_ERR(s, p) \
698 len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \
699 sc->debug.stats.rxstats.phy_err_stats[p]);
701 struct ath_softc *sc = file->private_data;
703 unsigned int len = 0, size = 1152;
706 buf = kzalloc(size, GFP_KERNEL);
710 len += snprintf(buf + len, size - len,
711 "%18s : %10u\n", "CRC ERR",
712 sc->debug.stats.rxstats.crc_err);
713 len += snprintf(buf + len, size - len,
714 "%18s : %10u\n", "DECRYPT CRC ERR",
715 sc->debug.stats.rxstats.decrypt_crc_err);
716 len += snprintf(buf + len, size - len,
717 "%18s : %10u\n", "PHY ERR",
718 sc->debug.stats.rxstats.phy_err);
719 len += snprintf(buf + len, size - len,
720 "%18s : %10u\n", "MIC ERR",
721 sc->debug.stats.rxstats.mic_err);
722 len += snprintf(buf + len, size - len,
723 "%18s : %10u\n", "PRE-DELIM CRC ERR",
724 sc->debug.stats.rxstats.pre_delim_crc_err);
725 len += snprintf(buf + len, size - len,
726 "%18s : %10u\n", "POST-DELIM CRC ERR",
727 sc->debug.stats.rxstats.post_delim_crc_err);
728 len += snprintf(buf + len, size - len,
729 "%18s : %10u\n", "DECRYPT BUSY ERR",
730 sc->debug.stats.rxstats.decrypt_busy_err);
732 PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);
733 PHY_ERR("TIMING", ATH9K_PHYERR_TIMING);
734 PHY_ERR("PARITY", ATH9K_PHYERR_PARITY);
735 PHY_ERR("RATE", ATH9K_PHYERR_RATE);
736 PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH);
737 PHY_ERR("RADAR", ATH9K_PHYERR_RADAR);
738 PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE);
739 PHY_ERR("TOR", ATH9K_PHYERR_TOR);
740 PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING);
741 PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
742 PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
743 PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
744 PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP);
745 PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE);
746 PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART);
747 PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT);
748 PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING);
749 PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC);
750 PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
751 PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE);
752 PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART);
753 PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
754 PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP);
755 PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR);
756 PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
757 PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL);
759 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
767 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
769 #define RX_STAT_INC(c) sc->debug.stats.rxstats.c++
770 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
774 if (rs->rs_status & ATH9K_RXERR_CRC)
775 RX_STAT_INC(crc_err);
776 if (rs->rs_status & ATH9K_RXERR_DECRYPT)
777 RX_STAT_INC(decrypt_crc_err);
778 if (rs->rs_status & ATH9K_RXERR_MIC)
779 RX_STAT_INC(mic_err);
780 if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
781 RX_STAT_INC(pre_delim_crc_err);
782 if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
783 RX_STAT_INC(post_delim_crc_err);
784 if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
785 RX_STAT_INC(decrypt_busy_err);
787 if (rs->rs_status & ATH9K_RXERR_PHY) {
788 RX_STAT_INC(phy_err);
789 phyerr = rs->rs_phyerr & 0x24;
790 RX_PHY_ERR_INC(phyerr);
794 #undef RX_PHY_ERR_INC
797 static const struct file_operations fops_recv = {
798 .read = read_file_recv,
799 .open = ath9k_debugfs_open,
803 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
804 size_t count, loff_t *ppos)
806 struct ath_softc *sc = file->private_data;
810 len = snprintf(buf, sizeof(buf), "0x%08x\n", sc->debug.regidx);
811 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
814 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
815 size_t count, loff_t *ppos)
817 struct ath_softc *sc = file->private_data;
818 unsigned long regidx;
822 len = min(count, sizeof(buf) - 1);
823 if (copy_from_user(buf, user_buf, len))
827 if (strict_strtoul(buf, 0, ®idx))
830 sc->debug.regidx = regidx;
834 static const struct file_operations fops_regidx = {
835 .read = read_file_regidx,
836 .write = write_file_regidx,
837 .open = ath9k_debugfs_open,
841 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
842 size_t count, loff_t *ppos)
844 struct ath_softc *sc = file->private_data;
845 struct ath_hw *ah = sc->sc_ah;
850 regval = REG_READ_D(ah, sc->debug.regidx);
851 len = snprintf(buf, sizeof(buf), "0x%08x\n", regval);
852 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
855 static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
856 size_t count, loff_t *ppos)
858 struct ath_softc *sc = file->private_data;
859 struct ath_hw *ah = sc->sc_ah;
860 unsigned long regval;
864 len = min(count, sizeof(buf) - 1);
865 if (copy_from_user(buf, user_buf, len))
869 if (strict_strtoul(buf, 0, ®val))
872 REG_WRITE_D(ah, sc->debug.regidx, regval);
876 static const struct file_operations fops_regval = {
877 .read = read_file_regval,
878 .write = write_file_regval,
879 .open = ath9k_debugfs_open,
883 int ath9k_init_debug(struct ath_hw *ah)
885 struct ath_common *common = ath9k_hw_common(ah);
886 struct ath_softc *sc = (struct ath_softc *) common->priv;
888 if (!ath9k_debugfs_root)
891 sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
893 if (!sc->debug.debugfs_phy)
896 #ifdef CONFIG_ATH_DEBUG
897 if (!debugfs_create_file("debug", S_IRUSR | S_IWUSR,
898 sc->debug.debugfs_phy, sc, &fops_debug))
902 if (!debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy,
906 if (!debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy,
907 sc, &fops_interrupt))
910 if (!debugfs_create_file("rcstat", S_IRUSR, sc->debug.debugfs_phy,
914 if (!debugfs_create_file("wiphy", S_IRUSR | S_IWUSR,
915 sc->debug.debugfs_phy, sc, &fops_wiphy))
918 if (!debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy,
922 if (!debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy,
926 if (!debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
927 sc->debug.debugfs_phy, sc, &fops_rx_chainmask))
930 if (!debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
931 sc->debug.debugfs_phy, sc, &fops_tx_chainmask))
934 if (!debugfs_create_file("regidx", S_IRUSR | S_IWUSR,
935 sc->debug.debugfs_phy, sc, &fops_regidx))
938 if (!debugfs_create_file("regval", S_IRUSR | S_IWUSR,
939 sc->debug.debugfs_phy, sc, &fops_regval))
942 sc->debug.regidx = 0;
945 ath9k_exit_debug(ah);
949 void ath9k_exit_debug(struct ath_hw *ah)
951 struct ath_common *common = ath9k_hw_common(ah);
952 struct ath_softc *sc = (struct ath_softc *) common->priv;
954 debugfs_remove_recursive(sc->debug.debugfs_phy);
957 int ath9k_debug_create_root(void)
959 ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
960 if (!ath9k_debugfs_root)
966 void ath9k_debug_remove_root(void)
968 debugfs_remove(ath9k_debugfs_root);
969 ath9k_debugfs_root = NULL;