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++;
273 if (status & ATH9K_INT_RX)
274 sc->debug.stats.istats.rxok++;
276 if (status & ATH9K_INT_RXEOL)
277 sc->debug.stats.istats.rxeol++;
278 if (status & ATH9K_INT_RXORN)
279 sc->debug.stats.istats.rxorn++;
280 if (status & ATH9K_INT_TX)
281 sc->debug.stats.istats.txok++;
282 if (status & ATH9K_INT_TXURN)
283 sc->debug.stats.istats.txurn++;
284 if (status & ATH9K_INT_MIB)
285 sc->debug.stats.istats.mib++;
286 if (status & ATH9K_INT_RXPHY)
287 sc->debug.stats.istats.rxphyerr++;
288 if (status & ATH9K_INT_RXKCM)
289 sc->debug.stats.istats.rx_keycache_miss++;
290 if (status & ATH9K_INT_SWBA)
291 sc->debug.stats.istats.swba++;
292 if (status & ATH9K_INT_BMISS)
293 sc->debug.stats.istats.bmiss++;
294 if (status & ATH9K_INT_BNR)
295 sc->debug.stats.istats.bnr++;
296 if (status & ATH9K_INT_CST)
297 sc->debug.stats.istats.cst++;
298 if (status & ATH9K_INT_GTT)
299 sc->debug.stats.istats.gtt++;
300 if (status & ATH9K_INT_TIM)
301 sc->debug.stats.istats.tim++;
302 if (status & ATH9K_INT_CABEND)
303 sc->debug.stats.istats.cabend++;
304 if (status & ATH9K_INT_DTIMSYNC)
305 sc->debug.stats.istats.dtimsync++;
306 if (status & ATH9K_INT_DTIM)
307 sc->debug.stats.istats.dtim++;
310 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
311 size_t count, loff_t *ppos)
313 struct ath_softc *sc = file->private_data;
315 unsigned int len = 0;
317 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
318 len += snprintf(buf + len, sizeof(buf) - len,
319 "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp);
320 len += snprintf(buf + len, sizeof(buf) - len,
321 "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp);
323 len += snprintf(buf + len, sizeof(buf) - len,
324 "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
326 len += snprintf(buf + len, sizeof(buf) - len,
327 "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol);
328 len += snprintf(buf + len, sizeof(buf) - len,
329 "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn);
330 len += snprintf(buf + len, sizeof(buf) - len,
331 "%8s: %10u\n", "TX", sc->debug.stats.istats.txok);
332 len += snprintf(buf + len, sizeof(buf) - len,
333 "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn);
334 len += snprintf(buf + len, sizeof(buf) - len,
335 "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib);
336 len += snprintf(buf + len, sizeof(buf) - len,
337 "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr);
338 len += snprintf(buf + len, sizeof(buf) - len,
339 "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss);
340 len += snprintf(buf + len, sizeof(buf) - len,
341 "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba);
342 len += snprintf(buf + len, sizeof(buf) - len,
343 "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss);
344 len += snprintf(buf + len, sizeof(buf) - len,
345 "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr);
346 len += snprintf(buf + len, sizeof(buf) - len,
347 "%8s: %10u\n", "CST", sc->debug.stats.istats.cst);
348 len += snprintf(buf + len, sizeof(buf) - len,
349 "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt);
350 len += snprintf(buf + len, sizeof(buf) - len,
351 "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim);
352 len += snprintf(buf + len, sizeof(buf) - len,
353 "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend);
354 len += snprintf(buf + len, sizeof(buf) - len,
355 "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync);
356 len += snprintf(buf + len, sizeof(buf) - len,
357 "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
358 len += snprintf(buf + len, sizeof(buf) - len,
359 "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
361 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
364 static const struct file_operations fops_interrupt = {
365 .read = read_file_interrupt,
366 .open = ath9k_debugfs_open,
370 void ath_debug_stat_rc(struct ath_softc *sc, int final_rate)
372 struct ath_rc_stats *stats;
374 stats = &sc->debug.stats.rcstats[final_rate];
378 void ath_debug_stat_retries(struct ath_softc *sc, int rix,
379 int xretries, int retries, u8 per)
381 struct ath_rc_stats *stats = &sc->debug.stats.rcstats[rix];
383 stats->xretries += xretries;
384 stats->retries += retries;
388 static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
389 size_t count, loff_t *ppos)
391 struct ath_softc *sc = file->private_data;
393 unsigned int len = 0, max;
397 if (sc->cur_rate_table == NULL)
400 max = 80 + sc->cur_rate_table->rate_cnt * 1024;
401 buf = kmalloc(max + 1, GFP_KERNEL);
406 len += sprintf(buf, "%6s %6s %6s "
407 "%10s %10s %10s %10s\n",
409 "Success", "Retries", "XRetries", "PER");
411 for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) {
412 u32 ratekbps = sc->cur_rate_table->info[i].ratekbps;
413 struct ath_rc_stats *stats = &sc->debug.stats.rcstats[i];
416 int used_mcs = 0, used_htmode = 0;
418 if (WLAN_RC_PHY_HT(sc->cur_rate_table->info[i].phy)) {
419 used_mcs = snprintf(mcs, 5, "%d",
420 sc->cur_rate_table->info[i].ratecode);
422 if (WLAN_RC_PHY_40(sc->cur_rate_table->info[i].phy))
423 used_htmode = snprintf(htmode, 5, "HT40");
424 else if (WLAN_RC_PHY_20(sc->cur_rate_table->info[i].phy))
425 used_htmode = snprintf(htmode, 5, "HT20");
427 used_htmode = snprintf(htmode, 5, "????");
430 mcs[used_mcs] = '\0';
431 htmode[used_htmode] = '\0';
433 len += snprintf(buf + len, max - len,
435 "%10u %10u %10u %10u\n",
439 (ratekbps % 1000) / 100,
446 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
451 static const struct file_operations fops_rcstat = {
452 .read = read_file_rcstat,
453 .open = ath9k_debugfs_open,
457 static const char * ath_wiphy_state_str(enum ath_wiphy_state state)
460 case ATH_WIPHY_INACTIVE:
462 case ATH_WIPHY_ACTIVE:
464 case ATH_WIPHY_PAUSING:
466 case ATH_WIPHY_PAUSED:
474 static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
475 size_t count, loff_t *ppos)
477 struct ath_softc *sc = file->private_data;
479 unsigned int len = 0;
483 len += snprintf(buf + len, sizeof(buf) - len,
484 "primary: %s (%s chan=%d ht=%d)\n",
485 wiphy_name(sc->pri_wiphy->hw->wiphy),
486 ath_wiphy_state_str(sc->pri_wiphy->state),
487 sc->pri_wiphy->chan_idx, sc->pri_wiphy->chan_is_ht);
488 for (i = 0; i < sc->num_sec_wiphy; i++) {
489 struct ath_wiphy *aphy = sc->sec_wiphy[i];
492 len += snprintf(buf + len, sizeof(buf) - len,
493 "secondary: %s (%s chan=%d ht=%d)\n",
494 wiphy_name(aphy->hw->wiphy),
495 ath_wiphy_state_str(aphy->state),
496 aphy->chan_idx, aphy->chan_is_ht);
499 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
500 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
501 len += snprintf(buf + len, sizeof(buf) - len,
502 "addr: %pM\n", addr);
503 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr);
504 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
505 len += snprintf(buf + len, sizeof(buf) - len,
506 "addrmask: %pM\n", addr);
508 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
511 static struct ath_wiphy * get_wiphy(struct ath_softc *sc, const char *name)
514 if (strcmp(name, wiphy_name(sc->pri_wiphy->hw->wiphy)) == 0)
515 return sc->pri_wiphy;
516 for (i = 0; i < sc->num_sec_wiphy; i++) {
517 struct ath_wiphy *aphy = sc->sec_wiphy[i];
518 if (aphy && strcmp(name, wiphy_name(aphy->hw->wiphy)) == 0)
524 static int del_wiphy(struct ath_softc *sc, const char *name)
526 struct ath_wiphy *aphy = get_wiphy(sc, name);
529 return ath9k_wiphy_del(aphy);
532 static int pause_wiphy(struct ath_softc *sc, const char *name)
534 struct ath_wiphy *aphy = get_wiphy(sc, name);
537 return ath9k_wiphy_pause(aphy);
540 static int unpause_wiphy(struct ath_softc *sc, const char *name)
542 struct ath_wiphy *aphy = get_wiphy(sc, name);
545 return ath9k_wiphy_unpause(aphy);
548 static int select_wiphy(struct ath_softc *sc, const char *name)
550 struct ath_wiphy *aphy = get_wiphy(sc, name);
553 return ath9k_wiphy_select(aphy);
556 static int schedule_wiphy(struct ath_softc *sc, const char *msec)
558 ath9k_wiphy_set_scheduler(sc, simple_strtoul(msec, NULL, 0));
562 static ssize_t write_file_wiphy(struct file *file, const char __user *user_buf,
563 size_t count, loff_t *ppos)
565 struct ath_softc *sc = file->private_data;
569 len = min(count, sizeof(buf) - 1);
570 if (copy_from_user(buf, user_buf, len))
573 if (len > 0 && buf[len - 1] == '\n')
576 if (strncmp(buf, "add", 3) == 0) {
577 int res = ath9k_wiphy_add(sc);
580 } else if (strncmp(buf, "del=", 4) == 0) {
581 int res = del_wiphy(sc, buf + 4);
584 } else if (strncmp(buf, "pause=", 6) == 0) {
585 int res = pause_wiphy(sc, buf + 6);
588 } else if (strncmp(buf, "unpause=", 8) == 0) {
589 int res = unpause_wiphy(sc, buf + 8);
592 } else if (strncmp(buf, "select=", 7) == 0) {
593 int res = select_wiphy(sc, buf + 7);
596 } else if (strncmp(buf, "schedule=", 9) == 0) {
597 int res = schedule_wiphy(sc, buf + 9);
606 static const struct file_operations fops_wiphy = {
607 .read = read_file_wiphy,
608 .write = write_file_wiphy,
609 .open = ath9k_debugfs_open,
613 #define PR(str, elem) \
615 len += snprintf(buf + len, size - len, \
616 "%s%13u%11u%10u%10u\n", str, \
617 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BE]].elem, \
618 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BK]].elem, \
619 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VI]].elem, \
620 sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VO]].elem); \
623 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
624 size_t count, loff_t *ppos)
626 struct ath_softc *sc = file->private_data;
628 unsigned int len = 0, size = 2048;
631 buf = kzalloc(size, GFP_KERNEL);
635 len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
637 PR("MPDUs Queued: ", queued);
638 PR("MPDUs Completed: ", completed);
639 PR("Aggregates: ", a_aggr);
640 PR("AMPDUs Queued: ", a_queued);
641 PR("AMPDUs Completed:", a_completed);
642 PR("AMPDUs Retried: ", a_retries);
643 PR("AMPDUs XRetried: ", a_xretries);
644 PR("FIFO Underrun: ", fifo_underrun);
645 PR("TXOP Exceeded: ", xtxop);
646 PR("TXTIMER Expiry: ", timer_exp);
647 PR("DESC CFG Error: ", desc_cfg_err);
648 PR("DATA Underrun: ", data_underrun);
649 PR("DELIM Underrun: ", delim_underrun);
651 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
657 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
658 struct ath_buf *bf, struct ath_tx_status *ts)
660 if (bf_isampdu(bf)) {
661 if (bf_isxretried(bf))
662 TX_STAT_INC(txq->axq_qnum, a_xretries);
664 TX_STAT_INC(txq->axq_qnum, a_completed);
666 TX_STAT_INC(txq->axq_qnum, completed);
669 if (ts->ts_status & ATH9K_TXERR_FIFO)
670 TX_STAT_INC(txq->axq_qnum, fifo_underrun);
671 if (ts->ts_status & ATH9K_TXERR_XTXOP)
672 TX_STAT_INC(txq->axq_qnum, xtxop);
673 if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
674 TX_STAT_INC(txq->axq_qnum, timer_exp);
675 if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
676 TX_STAT_INC(txq->axq_qnum, desc_cfg_err);
677 if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
678 TX_STAT_INC(txq->axq_qnum, data_underrun);
679 if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
680 TX_STAT_INC(txq->axq_qnum, delim_underrun);
683 static const struct file_operations fops_xmit = {
684 .read = read_file_xmit,
685 .open = ath9k_debugfs_open,
689 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
690 size_t count, loff_t *ppos)
692 #define PHY_ERR(s, p) \
693 len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \
694 sc->debug.stats.rxstats.phy_err_stats[p]);
696 struct ath_softc *sc = file->private_data;
698 unsigned int len = 0, size = 1152;
701 buf = kzalloc(size, GFP_KERNEL);
705 len += snprintf(buf + len, size - len,
706 "%18s : %10u\n", "CRC ERR",
707 sc->debug.stats.rxstats.crc_err);
708 len += snprintf(buf + len, size - len,
709 "%18s : %10u\n", "DECRYPT CRC ERR",
710 sc->debug.stats.rxstats.decrypt_crc_err);
711 len += snprintf(buf + len, size - len,
712 "%18s : %10u\n", "PHY ERR",
713 sc->debug.stats.rxstats.phy_err);
714 len += snprintf(buf + len, size - len,
715 "%18s : %10u\n", "MIC ERR",
716 sc->debug.stats.rxstats.mic_err);
717 len += snprintf(buf + len, size - len,
718 "%18s : %10u\n", "PRE-DELIM CRC ERR",
719 sc->debug.stats.rxstats.pre_delim_crc_err);
720 len += snprintf(buf + len, size - len,
721 "%18s : %10u\n", "POST-DELIM CRC ERR",
722 sc->debug.stats.rxstats.post_delim_crc_err);
723 len += snprintf(buf + len, size - len,
724 "%18s : %10u\n", "DECRYPT BUSY ERR",
725 sc->debug.stats.rxstats.decrypt_busy_err);
727 PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);
728 PHY_ERR("TIMING", ATH9K_PHYERR_TIMING);
729 PHY_ERR("PARITY", ATH9K_PHYERR_PARITY);
730 PHY_ERR("RATE", ATH9K_PHYERR_RATE);
731 PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH);
732 PHY_ERR("RADAR", ATH9K_PHYERR_RADAR);
733 PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE);
734 PHY_ERR("TOR", ATH9K_PHYERR_TOR);
735 PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING);
736 PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
737 PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
738 PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
739 PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP);
740 PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE);
741 PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART);
742 PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT);
743 PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING);
744 PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC);
745 PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
746 PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE);
747 PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART);
748 PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
749 PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP);
750 PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR);
751 PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
752 PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL);
754 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
762 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
764 #define RX_STAT_INC(c) sc->debug.stats.rxstats.c++
765 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
769 if (rs->rs_status & ATH9K_RXERR_CRC)
770 RX_STAT_INC(crc_err);
771 if (rs->rs_status & ATH9K_RXERR_DECRYPT)
772 RX_STAT_INC(decrypt_crc_err);
773 if (rs->rs_status & ATH9K_RXERR_MIC)
774 RX_STAT_INC(mic_err);
775 if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
776 RX_STAT_INC(pre_delim_crc_err);
777 if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
778 RX_STAT_INC(post_delim_crc_err);
779 if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
780 RX_STAT_INC(decrypt_busy_err);
782 if (rs->rs_status & ATH9K_RXERR_PHY) {
783 RX_STAT_INC(phy_err);
784 phyerr = rs->rs_phyerr & 0x24;
785 RX_PHY_ERR_INC(phyerr);
789 #undef RX_PHY_ERR_INC
792 static const struct file_operations fops_recv = {
793 .read = read_file_recv,
794 .open = ath9k_debugfs_open,
798 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
799 size_t count, loff_t *ppos)
801 struct ath_softc *sc = file->private_data;
805 len = snprintf(buf, sizeof(buf), "0x%08x\n", sc->debug.regidx);
806 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
809 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
810 size_t count, loff_t *ppos)
812 struct ath_softc *sc = file->private_data;
813 unsigned long regidx;
817 len = min(count, sizeof(buf) - 1);
818 if (copy_from_user(buf, user_buf, len))
822 if (strict_strtoul(buf, 0, ®idx))
825 sc->debug.regidx = regidx;
829 static const struct file_operations fops_regidx = {
830 .read = read_file_regidx,
831 .write = write_file_regidx,
832 .open = ath9k_debugfs_open,
836 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
837 size_t count, loff_t *ppos)
839 struct ath_softc *sc = file->private_data;
840 struct ath_hw *ah = sc->sc_ah;
845 regval = REG_READ_D(ah, sc->debug.regidx);
846 len = snprintf(buf, sizeof(buf), "0x%08x\n", regval);
847 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
850 static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
851 size_t count, loff_t *ppos)
853 struct ath_softc *sc = file->private_data;
854 struct ath_hw *ah = sc->sc_ah;
855 unsigned long regval;
859 len = min(count, sizeof(buf) - 1);
860 if (copy_from_user(buf, user_buf, len))
864 if (strict_strtoul(buf, 0, ®val))
867 REG_WRITE_D(ah, sc->debug.regidx, regval);
871 static const struct file_operations fops_regval = {
872 .read = read_file_regval,
873 .write = write_file_regval,
874 .open = ath9k_debugfs_open,
878 int ath9k_init_debug(struct ath_hw *ah)
880 struct ath_common *common = ath9k_hw_common(ah);
881 struct ath_softc *sc = (struct ath_softc *) common->priv;
883 if (!ath9k_debugfs_root)
886 sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
888 if (!sc->debug.debugfs_phy)
891 #ifdef CONFIG_ATH_DEBUG
892 if (!debugfs_create_file("debug", S_IRUSR | S_IWUSR,
893 sc->debug.debugfs_phy, sc, &fops_debug))
897 if (!debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy,
901 if (!debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy,
902 sc, &fops_interrupt))
905 if (!debugfs_create_file("rcstat", S_IRUSR, sc->debug.debugfs_phy,
909 if (!debugfs_create_file("wiphy", S_IRUSR | S_IWUSR,
910 sc->debug.debugfs_phy, sc, &fops_wiphy))
913 if (!debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy,
917 if (!debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy,
921 if (!debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
922 sc->debug.debugfs_phy, sc, &fops_rx_chainmask))
925 if (!debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
926 sc->debug.debugfs_phy, sc, &fops_tx_chainmask))
929 if (!debugfs_create_file("regidx", S_IRUSR | S_IWUSR,
930 sc->debug.debugfs_phy, sc, &fops_regidx))
933 if (!debugfs_create_file("regval", S_IRUSR | S_IWUSR,
934 sc->debug.debugfs_phy, sc, &fops_regval))
937 sc->debug.regidx = 0;
940 ath9k_exit_debug(ah);
944 void ath9k_exit_debug(struct ath_hw *ah)
946 struct ath_common *common = ath9k_hw_common(ah);
947 struct ath_softc *sc = (struct ath_softc *) common->priv;
949 debugfs_remove_recursive(sc->debug.debugfs_phy);
952 int ath9k_debug_create_root(void)
954 ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
955 if (!ath9k_debugfs_root)
961 void ath9k_debug_remove_root(void)
963 debugfs_remove(ath9k_debugfs_root);
964 ath9k_debugfs_root = NULL;