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 = sprintf(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 = sprintf(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 = sprintf(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 if (len > DMA_BUF_LEN)
254 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
259 static const struct file_operations fops_dma = {
260 .read = read_file_dma,
261 .open = ath9k_debugfs_open,
266 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
269 sc->debug.stats.istats.total++;
270 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
271 if (status & ATH9K_INT_RXLP)
272 sc->debug.stats.istats.rxlp++;
273 if (status & ATH9K_INT_RXHP)
274 sc->debug.stats.istats.rxhp++;
275 if (status & ATH9K_INT_BB_WATCHDOG)
276 sc->debug.stats.istats.bb_watchdog++;
278 if (status & ATH9K_INT_RX)
279 sc->debug.stats.istats.rxok++;
281 if (status & ATH9K_INT_RXEOL)
282 sc->debug.stats.istats.rxeol++;
283 if (status & ATH9K_INT_RXORN)
284 sc->debug.stats.istats.rxorn++;
285 if (status & ATH9K_INT_TX)
286 sc->debug.stats.istats.txok++;
287 if (status & ATH9K_INT_TXURN)
288 sc->debug.stats.istats.txurn++;
289 if (status & ATH9K_INT_MIB)
290 sc->debug.stats.istats.mib++;
291 if (status & ATH9K_INT_RXPHY)
292 sc->debug.stats.istats.rxphyerr++;
293 if (status & ATH9K_INT_RXKCM)
294 sc->debug.stats.istats.rx_keycache_miss++;
295 if (status & ATH9K_INT_SWBA)
296 sc->debug.stats.istats.swba++;
297 if (status & ATH9K_INT_BMISS)
298 sc->debug.stats.istats.bmiss++;
299 if (status & ATH9K_INT_BNR)
300 sc->debug.stats.istats.bnr++;
301 if (status & ATH9K_INT_CST)
302 sc->debug.stats.istats.cst++;
303 if (status & ATH9K_INT_GTT)
304 sc->debug.stats.istats.gtt++;
305 if (status & ATH9K_INT_TIM)
306 sc->debug.stats.istats.tim++;
307 if (status & ATH9K_INT_CABEND)
308 sc->debug.stats.istats.cabend++;
309 if (status & ATH9K_INT_DTIMSYNC)
310 sc->debug.stats.istats.dtimsync++;
311 if (status & ATH9K_INT_DTIM)
312 sc->debug.stats.istats.dtim++;
315 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
316 size_t count, loff_t *ppos)
318 struct ath_softc *sc = file->private_data;
320 unsigned int len = 0;
322 if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
323 len += snprintf(buf + len, sizeof(buf) - len,
324 "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp);
325 len += snprintf(buf + len, sizeof(buf) - len,
326 "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp);
327 len += snprintf(buf + len, sizeof(buf) - len,
328 "%8s: %10u\n", "WATCHDOG",
329 sc->debug.stats.istats.bb_watchdog);
331 len += snprintf(buf + len, sizeof(buf) - len,
332 "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
334 len += snprintf(buf + len, sizeof(buf) - len,
335 "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol);
336 len += snprintf(buf + len, sizeof(buf) - len,
337 "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn);
338 len += snprintf(buf + len, sizeof(buf) - len,
339 "%8s: %10u\n", "TX", sc->debug.stats.istats.txok);
340 len += snprintf(buf + len, sizeof(buf) - len,
341 "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn);
342 len += snprintf(buf + len, sizeof(buf) - len,
343 "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib);
344 len += snprintf(buf + len, sizeof(buf) - len,
345 "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr);
346 len += snprintf(buf + len, sizeof(buf) - len,
347 "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss);
348 len += snprintf(buf + len, sizeof(buf) - len,
349 "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba);
350 len += snprintf(buf + len, sizeof(buf) - len,
351 "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss);
352 len += snprintf(buf + len, sizeof(buf) - len,
353 "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr);
354 len += snprintf(buf + len, sizeof(buf) - len,
355 "%8s: %10u\n", "CST", sc->debug.stats.istats.cst);
356 len += snprintf(buf + len, sizeof(buf) - len,
357 "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt);
358 len += snprintf(buf + len, sizeof(buf) - len,
359 "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim);
360 len += snprintf(buf + len, sizeof(buf) - len,
361 "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend);
362 len += snprintf(buf + len, sizeof(buf) - len,
363 "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync);
364 len += snprintf(buf + len, sizeof(buf) - len,
365 "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
366 len += snprintf(buf + len, sizeof(buf) - len,
367 "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
369 if (len > sizeof(buf))
372 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
375 static const struct file_operations fops_interrupt = {
376 .read = read_file_interrupt,
377 .open = ath9k_debugfs_open,
381 static const char * ath_wiphy_state_str(enum ath_wiphy_state state)
384 case ATH_WIPHY_INACTIVE:
386 case ATH_WIPHY_ACTIVE:
388 case ATH_WIPHY_PAUSING:
390 case ATH_WIPHY_PAUSED:
398 static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
399 size_t count, loff_t *ppos)
401 struct ath_softc *sc = file->private_data;
402 struct ath_wiphy *aphy = sc->pri_wiphy;
403 struct ieee80211_channel *chan = aphy->hw->conf.channel;
405 unsigned int len = 0;
410 len += snprintf(buf + len, sizeof(buf) - len,
411 "primary: %s (%s chan=%d ht=%d)\n",
412 wiphy_name(sc->pri_wiphy->hw->wiphy),
413 ath_wiphy_state_str(sc->pri_wiphy->state),
414 ieee80211_frequency_to_channel(chan->center_freq),
417 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
418 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
419 len += snprintf(buf + len, sizeof(buf) - len,
420 "addr: %pM\n", addr);
421 put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr);
422 put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
423 len += snprintf(buf + len, sizeof(buf) - len,
424 "addrmask: %pM\n", addr);
425 tmp = ath9k_hw_getrxfilter(sc->sc_ah);
426 len += snprintf(buf + len, sizeof(buf) - len,
428 if (tmp & ATH9K_RX_FILTER_UCAST)
429 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
430 if (tmp & ATH9K_RX_FILTER_MCAST)
431 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
432 if (tmp & ATH9K_RX_FILTER_BCAST)
433 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
434 if (tmp & ATH9K_RX_FILTER_CONTROL)
435 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
436 if (tmp & ATH9K_RX_FILTER_BEACON)
437 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
438 if (tmp & ATH9K_RX_FILTER_PROM)
439 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
440 if (tmp & ATH9K_RX_FILTER_PROBEREQ)
441 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
442 if (tmp & ATH9K_RX_FILTER_PHYERR)
443 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR");
444 if (tmp & ATH9K_RX_FILTER_MYBEACON)
445 len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON");
446 if (tmp & ATH9K_RX_FILTER_COMP_BAR)
447 len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
448 if (tmp & ATH9K_RX_FILTER_PSPOLL)
449 len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL");
450 if (tmp & ATH9K_RX_FILTER_PHYRADAR)
451 len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
452 if (tmp & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
453 len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL\n");
455 len += snprintf(buf + len, sizeof(buf) - len, "\n");
457 /* Put variable-length stuff down here, and check for overflows. */
458 for (i = 0; i < sc->num_sec_wiphy; i++) {
459 struct ath_wiphy *aphy = sc->sec_wiphy[i];
462 chan = aphy->hw->conf.channel;
463 len += snprintf(buf + len, sizeof(buf) - len,
464 "secondary: %s (%s chan=%d ht=%d)\n",
465 wiphy_name(aphy->hw->wiphy),
466 ath_wiphy_state_str(aphy->state),
467 ieee80211_frequency_to_channel(chan->center_freq),
470 if (len > sizeof(buf))
473 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
476 static struct ath_wiphy * get_wiphy(struct ath_softc *sc, const char *name)
479 if (strcmp(name, wiphy_name(sc->pri_wiphy->hw->wiphy)) == 0)
480 return sc->pri_wiphy;
481 for (i = 0; i < sc->num_sec_wiphy; i++) {
482 struct ath_wiphy *aphy = sc->sec_wiphy[i];
483 if (aphy && strcmp(name, wiphy_name(aphy->hw->wiphy)) == 0)
489 static int del_wiphy(struct ath_softc *sc, const char *name)
491 struct ath_wiphy *aphy = get_wiphy(sc, name);
494 return ath9k_wiphy_del(aphy);
497 static int pause_wiphy(struct ath_softc *sc, const char *name)
499 struct ath_wiphy *aphy = get_wiphy(sc, name);
502 return ath9k_wiphy_pause(aphy);
505 static int unpause_wiphy(struct ath_softc *sc, const char *name)
507 struct ath_wiphy *aphy = get_wiphy(sc, name);
510 return ath9k_wiphy_unpause(aphy);
513 static int select_wiphy(struct ath_softc *sc, const char *name)
515 struct ath_wiphy *aphy = get_wiphy(sc, name);
518 return ath9k_wiphy_select(aphy);
521 static int schedule_wiphy(struct ath_softc *sc, const char *msec)
523 ath9k_wiphy_set_scheduler(sc, simple_strtoul(msec, NULL, 0));
527 static ssize_t write_file_wiphy(struct file *file, const char __user *user_buf,
528 size_t count, loff_t *ppos)
530 struct ath_softc *sc = file->private_data;
534 len = min(count, sizeof(buf) - 1);
535 if (copy_from_user(buf, user_buf, len))
538 if (len > 0 && buf[len - 1] == '\n')
541 if (strncmp(buf, "add", 3) == 0) {
542 int res = ath9k_wiphy_add(sc);
545 } else if (strncmp(buf, "del=", 4) == 0) {
546 int res = del_wiphy(sc, buf + 4);
549 } else if (strncmp(buf, "pause=", 6) == 0) {
550 int res = pause_wiphy(sc, buf + 6);
553 } else if (strncmp(buf, "unpause=", 8) == 0) {
554 int res = unpause_wiphy(sc, buf + 8);
557 } else if (strncmp(buf, "select=", 7) == 0) {
558 int res = select_wiphy(sc, buf + 7);
561 } else if (strncmp(buf, "schedule=", 9) == 0) {
562 int res = schedule_wiphy(sc, buf + 9);
571 static const struct file_operations fops_wiphy = {
572 .read = read_file_wiphy,
573 .write = write_file_wiphy,
574 .open = ath9k_debugfs_open,
578 #define PR(str, elem) \
580 len += snprintf(buf + len, size - len, \
581 "%s%13u%11u%10u%10u\n", str, \
582 sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BE]].elem, \
583 sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BK]].elem, \
584 sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VI]].elem, \
585 sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VO]].elem); \
588 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
589 size_t count, loff_t *ppos)
591 struct ath_softc *sc = file->private_data;
593 unsigned int len = 0, size = 2048;
596 buf = kzalloc(size, GFP_KERNEL);
600 len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
602 PR("MPDUs Queued: ", queued);
603 PR("MPDUs Completed: ", completed);
604 PR("Aggregates: ", a_aggr);
605 PR("AMPDUs Queued: ", a_queued);
606 PR("AMPDUs Completed:", a_completed);
607 PR("AMPDUs Retried: ", a_retries);
608 PR("AMPDUs XRetried: ", a_xretries);
609 PR("FIFO Underrun: ", fifo_underrun);
610 PR("TXOP Exceeded: ", xtxop);
611 PR("TXTIMER Expiry: ", timer_exp);
612 PR("DESC CFG Error: ", desc_cfg_err);
613 PR("DATA Underrun: ", data_underrun);
614 PR("DELIM Underrun: ", delim_underrun);
615 PR("TX-Pkts-All: ", tx_pkts_all);
616 PR("TX-Bytes-All: ", tx_bytes_all);
621 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
627 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
628 struct ath_buf *bf, struct ath_tx_status *ts)
630 TX_STAT_INC(txq->axq_qnum, tx_pkts_all);
631 sc->debug.stats.txstats[txq->axq_qnum].tx_bytes_all += bf->bf_mpdu->len;
633 if (bf_isampdu(bf)) {
634 if (bf_isxretried(bf))
635 TX_STAT_INC(txq->axq_qnum, a_xretries);
637 TX_STAT_INC(txq->axq_qnum, a_completed);
639 TX_STAT_INC(txq->axq_qnum, completed);
642 if (ts->ts_status & ATH9K_TXERR_FIFO)
643 TX_STAT_INC(txq->axq_qnum, fifo_underrun);
644 if (ts->ts_status & ATH9K_TXERR_XTXOP)
645 TX_STAT_INC(txq->axq_qnum, xtxop);
646 if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
647 TX_STAT_INC(txq->axq_qnum, timer_exp);
648 if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
649 TX_STAT_INC(txq->axq_qnum, desc_cfg_err);
650 if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
651 TX_STAT_INC(txq->axq_qnum, data_underrun);
652 if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
653 TX_STAT_INC(txq->axq_qnum, delim_underrun);
656 static const struct file_operations fops_xmit = {
657 .read = read_file_xmit,
658 .open = ath9k_debugfs_open,
662 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
663 size_t count, loff_t *ppos)
665 #define PHY_ERR(s, p) \
666 len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \
667 sc->debug.stats.rxstats.phy_err_stats[p]);
669 struct ath_softc *sc = file->private_data;
671 unsigned int len = 0, size = 1152;
674 buf = kzalloc(size, GFP_KERNEL);
678 len += snprintf(buf + len, size - len,
679 "%18s : %10u\n", "CRC ERR",
680 sc->debug.stats.rxstats.crc_err);
681 len += snprintf(buf + len, size - len,
682 "%18s : %10u\n", "DECRYPT CRC ERR",
683 sc->debug.stats.rxstats.decrypt_crc_err);
684 len += snprintf(buf + len, size - len,
685 "%18s : %10u\n", "PHY ERR",
686 sc->debug.stats.rxstats.phy_err);
687 len += snprintf(buf + len, size - len,
688 "%18s : %10u\n", "MIC ERR",
689 sc->debug.stats.rxstats.mic_err);
690 len += snprintf(buf + len, size - len,
691 "%18s : %10u\n", "PRE-DELIM CRC ERR",
692 sc->debug.stats.rxstats.pre_delim_crc_err);
693 len += snprintf(buf + len, size - len,
694 "%18s : %10u\n", "POST-DELIM CRC ERR",
695 sc->debug.stats.rxstats.post_delim_crc_err);
696 len += snprintf(buf + len, size - len,
697 "%18s : %10u\n", "DECRYPT BUSY ERR",
698 sc->debug.stats.rxstats.decrypt_busy_err);
700 PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);
701 PHY_ERR("TIMING", ATH9K_PHYERR_TIMING);
702 PHY_ERR("PARITY", ATH9K_PHYERR_PARITY);
703 PHY_ERR("RATE", ATH9K_PHYERR_RATE);
704 PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH);
705 PHY_ERR("RADAR", ATH9K_PHYERR_RADAR);
706 PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE);
707 PHY_ERR("TOR", ATH9K_PHYERR_TOR);
708 PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING);
709 PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
710 PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
711 PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
712 PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP);
713 PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE);
714 PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART);
715 PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT);
716 PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING);
717 PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC);
718 PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
719 PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE);
720 PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART);
721 PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
722 PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP);
723 PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR);
724 PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
725 PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL);
727 len += snprintf(buf + len, size - len,
728 "%18s : %10u\n", "RX-Pkts-All",
729 sc->debug.stats.rxstats.rx_pkts_all);
730 len += snprintf(buf + len, size - len,
731 "%18s : %10u\n", "RX-Bytes-All",
732 sc->debug.stats.rxstats.rx_bytes_all);
737 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
745 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
747 #define RX_STAT_INC(c) sc->debug.stats.rxstats.c++
748 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
752 RX_STAT_INC(rx_pkts_all);
753 sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen;
755 if (rs->rs_status & ATH9K_RXERR_CRC)
756 RX_STAT_INC(crc_err);
757 if (rs->rs_status & ATH9K_RXERR_DECRYPT)
758 RX_STAT_INC(decrypt_crc_err);
759 if (rs->rs_status & ATH9K_RXERR_MIC)
760 RX_STAT_INC(mic_err);
761 if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
762 RX_STAT_INC(pre_delim_crc_err);
763 if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
764 RX_STAT_INC(post_delim_crc_err);
765 if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
766 RX_STAT_INC(decrypt_busy_err);
768 if (rs->rs_status & ATH9K_RXERR_PHY) {
769 RX_STAT_INC(phy_err);
770 phyerr = rs->rs_phyerr & 0x24;
771 RX_PHY_ERR_INC(phyerr);
775 #undef RX_PHY_ERR_INC
778 static const struct file_operations fops_recv = {
779 .read = read_file_recv,
780 .open = ath9k_debugfs_open,
784 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
785 size_t count, loff_t *ppos)
787 struct ath_softc *sc = file->private_data;
791 len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
792 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
795 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
796 size_t count, loff_t *ppos)
798 struct ath_softc *sc = file->private_data;
799 unsigned long regidx;
803 len = min(count, sizeof(buf) - 1);
804 if (copy_from_user(buf, user_buf, len))
808 if (strict_strtoul(buf, 0, ®idx))
811 sc->debug.regidx = regidx;
815 static const struct file_operations fops_regidx = {
816 .read = read_file_regidx,
817 .write = write_file_regidx,
818 .open = ath9k_debugfs_open,
822 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
823 size_t count, loff_t *ppos)
825 struct ath_softc *sc = file->private_data;
826 struct ath_hw *ah = sc->sc_ah;
831 regval = REG_READ_D(ah, sc->debug.regidx);
832 len = sprintf(buf, "0x%08x\n", regval);
833 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
836 static ssize_t write_file_regval(struct file *file, const 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;
841 unsigned long regval;
845 len = min(count, sizeof(buf) - 1);
846 if (copy_from_user(buf, user_buf, len))
850 if (strict_strtoul(buf, 0, ®val))
853 REG_WRITE_D(ah, sc->debug.regidx, regval);
857 static const struct file_operations fops_regval = {
858 .read = read_file_regval,
859 .write = write_file_regval,
860 .open = ath9k_debugfs_open,
864 int ath9k_init_debug(struct ath_hw *ah)
866 struct ath_common *common = ath9k_hw_common(ah);
867 struct ath_softc *sc = (struct ath_softc *) common->priv;
869 if (!ath9k_debugfs_root)
872 sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
874 if (!sc->debug.debugfs_phy)
877 #ifdef CONFIG_ATH_DEBUG
878 if (!debugfs_create_file("debug", S_IRUSR | S_IWUSR,
879 sc->debug.debugfs_phy, sc, &fops_debug))
883 if (!debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy,
887 if (!debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy,
888 sc, &fops_interrupt))
891 if (!debugfs_create_file("wiphy", S_IRUSR | S_IWUSR,
892 sc->debug.debugfs_phy, sc, &fops_wiphy))
895 if (!debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy,
899 if (!debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy,
903 if (!debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
904 sc->debug.debugfs_phy, sc, &fops_rx_chainmask))
907 if (!debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
908 sc->debug.debugfs_phy, sc, &fops_tx_chainmask))
911 if (!debugfs_create_file("regidx", S_IRUSR | S_IWUSR,
912 sc->debug.debugfs_phy, sc, &fops_regidx))
915 if (!debugfs_create_file("regval", S_IRUSR | S_IWUSR,
916 sc->debug.debugfs_phy, sc, &fops_regval))
919 if (!debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
920 sc->debug.debugfs_phy, &ah->config.cwm_ignore_extcca))
923 sc->debug.regidx = 0;
926 ath9k_exit_debug(ah);
930 void ath9k_exit_debug(struct ath_hw *ah)
932 struct ath_common *common = ath9k_hw_common(ah);
933 struct ath_softc *sc = (struct ath_softc *) common->priv;
935 debugfs_remove_recursive(sc->debug.debugfs_phy);
938 int ath9k_debug_create_root(void)
940 ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
941 if (!ath9k_debugfs_root)
947 void ath9k_debug_remove_root(void)
949 debugfs_remove(ath9k_debugfs_root);
950 ath9k_debugfs_root = NULL;