debug.c

   1/*
   2 * Copyright (c) 2008-2011 Atheros Communications Inc.
   3 *
   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.
   7 *
   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.
  15 */
  16
  17#include <linux/slab.h>
  18#include <linux/vmalloc.h>
  19#include <linux/export.h>
  20#include <linux/unaligned.h>
  21
  22#include "ath9k.h"
  23
  24#define REG_WRITE_D(_ah, _reg, _val) \
  25	ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg))
  26#define REG_READ_D(_ah, _reg) \
  27	ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
  28
  29void ath9k_debug_sync_cause(struct ath_softc *sc, u32 sync_cause)
  30{
  31	if (sync_cause)
  32		sc->debug.stats.istats.sync_cause_all++;
  33	if (sync_cause & AR_INTR_SYNC_RTC_IRQ)
  34		sc->debug.stats.istats.sync_rtc_irq++;
  35	if (sync_cause & AR_INTR_SYNC_MAC_IRQ)
  36		sc->debug.stats.istats.sync_mac_irq++;
  37	if (sync_cause & AR_INTR_SYNC_EEPROM_ILLEGAL_ACCESS)
  38		sc->debug.stats.istats.eeprom_illegal_access++;
  39	if (sync_cause & AR_INTR_SYNC_APB_TIMEOUT)
  40		sc->debug.stats.istats.apb_timeout++;
  41	if (sync_cause & AR_INTR_SYNC_PCI_MODE_CONFLICT)
  42		sc->debug.stats.istats.pci_mode_conflict++;
  43	if (sync_cause & AR_INTR_SYNC_HOST1_FATAL)
  44		sc->debug.stats.istats.host1_fatal++;
  45	if (sync_cause & AR_INTR_SYNC_HOST1_PERR)
  46		sc->debug.stats.istats.host1_perr++;
  47	if (sync_cause & AR_INTR_SYNC_TRCV_FIFO_PERR)
  48		sc->debug.stats.istats.trcv_fifo_perr++;
  49	if (sync_cause & AR_INTR_SYNC_RADM_CPL_EP)
  50		sc->debug.stats.istats.radm_cpl_ep++;
  51	if (sync_cause & AR_INTR_SYNC_RADM_CPL_DLLP_ABORT)
  52		sc->debug.stats.istats.radm_cpl_dllp_abort++;
  53	if (sync_cause & AR_INTR_SYNC_RADM_CPL_TLP_ABORT)
  54		sc->debug.stats.istats.radm_cpl_tlp_abort++;
  55	if (sync_cause & AR_INTR_SYNC_RADM_CPL_ECRC_ERR)
  56		sc->debug.stats.istats.radm_cpl_ecrc_err++;
  57	if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT)
  58		sc->debug.stats.istats.radm_cpl_timeout++;
  59	if (sync_cause & AR_INTR_SYNC_LOCAL_TIMEOUT)
  60		sc->debug.stats.istats.local_timeout++;
  61	if (sync_cause & AR_INTR_SYNC_PM_ACCESS)
  62		sc->debug.stats.istats.pm_access++;
  63	if (sync_cause & AR_INTR_SYNC_MAC_AWAKE)
  64		sc->debug.stats.istats.mac_awake++;
  65	if (sync_cause & AR_INTR_SYNC_MAC_ASLEEP)
  66		sc->debug.stats.istats.mac_asleep++;
  67	if (sync_cause & AR_INTR_SYNC_MAC_SLEEP_ACCESS)
  68		sc->debug.stats.istats.mac_sleep_access++;
  69}
  70
  71static ssize_t ath9k_debugfs_read_buf(struct file *file, char __user *user_buf,
  72				      size_t count, loff_t *ppos)
  73{
  74	u8 *buf = file->private_data;
  75	return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
  76}
  77
  78static int ath9k_debugfs_release_buf(struct inode *inode, struct file *file)
  79{
  80	vfree(file->private_data);
  81	return 0;
  82}
  83
  84#ifdef CONFIG_ATH_DEBUG
  85
  86static ssize_t read_file_debug(struct file *file, char __user *user_buf,
  87			     size_t count, loff_t *ppos)
  88{
  89	struct ath_softc *sc = file->private_data;
  90	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
  91	char buf[32];
  92	unsigned int len;
  93
  94	len = sprintf(buf, "0x%08x\n", common->debug_mask);
  95	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
  96}
  97
  98static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
  99				size_t count, loff_t *ppos)
 100{
 101	struct ath_softc *sc = file->private_data;
 102	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 103	unsigned long mask;
 104	ssize_t ret;
 105
 106	ret = kstrtoul_from_user(user_buf, count, 0, &mask);
 107	if (ret)
 108		return ret;
 109
 110	common->debug_mask = mask;
 111	return count;
 112}
 113
 114static const struct file_operations fops_debug = {
 115	.read = read_file_debug,
 116	.write = write_file_debug,
 117	.open = simple_open,
 118	.owner = THIS_MODULE,
 119	.llseek = default_llseek,
 120};
 121
 122#endif
 123
 124#define DMA_BUF_LEN 1024
 125
 126
 127static ssize_t read_file_ani(struct file *file, char __user *user_buf,
 128			     size_t count, loff_t *ppos)
 129{
 130	struct ath_softc *sc = file->private_data;
 131	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 132	struct ath_hw *ah = sc->sc_ah;
 133	unsigned int len = 0;
 134	const unsigned int size = 1024;
 135	ssize_t retval = 0;
 136	char *buf;
 137	int i;
 138	struct {
 139		const char *name;
 140		unsigned int val;
 141	} ani_info[] = {
 142		{ "ANI RESET", ah->stats.ast_ani_reset },
 143		{ "OFDM LEVEL", ah->ani.ofdmNoiseImmunityLevel },
 144		{ "CCK LEVEL", ah->ani.cckNoiseImmunityLevel },
 145		{ "SPUR UP", ah->stats.ast_ani_spurup },
 146		{ "SPUR DOWN", ah->stats.ast_ani_spurdown },
 147		{ "OFDM WS-DET ON", ah->stats.ast_ani_ofdmon },
 148		{ "OFDM WS-DET OFF", ah->stats.ast_ani_ofdmoff },
 149		{ "MRC-CCK ON", ah->stats.ast_ani_ccklow },
 150		{ "MRC-CCK OFF", ah->stats.ast_ani_cckhigh },
 151		{ "FIR-STEP UP", ah->stats.ast_ani_stepup },
 152		{ "FIR-STEP DOWN", ah->stats.ast_ani_stepdown },
 153		{ "INV LISTENTIME", ah->stats.ast_ani_lneg_or_lzero },
 154		{ "OFDM ERRORS", ah->stats.ast_ani_ofdmerrs },
 155		{ "CCK ERRORS", ah->stats.ast_ani_cckerrs },
 156	};
 157
 158	buf = kzalloc(size, GFP_KERNEL);
 159	if (buf == NULL)
 160		return -ENOMEM;
 161
 162	len += scnprintf(buf + len, size - len, "%15s: %s\n", "ANI",
 163			 common->disable_ani ? "DISABLED" : "ENABLED");
 164
 165	if (common->disable_ani)
 166		goto exit;
 167
 168	for (i = 0; i < ARRAY_SIZE(ani_info); i++)
 169		len += scnprintf(buf + len, size - len, "%15s: %u\n",
 170				 ani_info[i].name, ani_info[i].val);
 171
 172exit:
 173	if (len > size)
 174		len = size;
 175
 176	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 177	kfree(buf);
 178
 179	return retval;
 180}
 181
 182static ssize_t write_file_ani(struct file *file,
 183			      const char __user *user_buf,
 184			      size_t count, loff_t *ppos)
 185{
 186	struct ath_softc *sc = file->private_data;
 187	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 188	unsigned long ani;
 189	ssize_t ret;
 190
 191	ret = kstrtoul_from_user(user_buf, count, 0, &ani);
 192	if (ret)
 193		return ret;
 194
 195	if (ani > 1)
 196		return -EINVAL;
 197
 198	common->disable_ani = !ani;
 199
 200	if (common->disable_ani) {
 201		clear_bit(ATH_OP_ANI_RUN, &common->op_flags);
 202		ath_stop_ani(sc);
 203	} else {
 204		ath_check_ani(sc);
 205	}
 206
 207	return count;
 208}
 209
 210static const struct file_operations fops_ani = {
 211	.read = read_file_ani,
 212	.write = write_file_ani,
 213	.open = simple_open,
 214	.owner = THIS_MODULE,
 215	.llseek = default_llseek,
 216};
 217
 218#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 219
 220static ssize_t read_file_bt_ant_diversity(struct file *file,
 221					  char __user *user_buf,
 222					  size_t count, loff_t *ppos)
 223{
 224	struct ath_softc *sc = file->private_data;
 225	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 226	char buf[32];
 227	unsigned int len;
 228
 229	len = sprintf(buf, "%d\n", common->bt_ant_diversity);
 230	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 231}
 232
 233static ssize_t write_file_bt_ant_diversity(struct file *file,
 234					   const char __user *user_buf,
 235					   size_t count, loff_t *ppos)
 236{
 237	struct ath_softc *sc = file->private_data;
 238	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 239	struct ath9k_hw_capabilities *pCap = &sc->sc_ah->caps;
 240	unsigned long bt_ant_diversity;
 241	ssize_t ret;
 242
 243	ret = kstrtoul_from_user(user_buf, count, 0, &bt_ant_diversity);
 244	if (ret)
 245		return ret;
 246
 247	if (!(pCap->hw_caps & ATH9K_HW_CAP_BT_ANT_DIV))
 248		goto exit;
 249
 250	common->bt_ant_diversity = !!bt_ant_diversity;
 251	ath9k_ps_wakeup(sc);
 252	ath9k_hw_set_bt_ant_diversity(sc->sc_ah, common->bt_ant_diversity);
 253	ath_dbg(common, CONFIG, "Enable WLAN/BT RX Antenna diversity: %d\n",
 254		common->bt_ant_diversity);
 255	ath9k_ps_restore(sc);
 256exit:
 257	return count;
 258}
 259
 260static const struct file_operations fops_bt_ant_diversity = {
 261	.read = read_file_bt_ant_diversity,
 262	.write = write_file_bt_ant_diversity,
 263	.open = simple_open,
 264	.owner = THIS_MODULE,
 265	.llseek = default_llseek,
 266};
 267
 268#endif
 269
 270void ath9k_debug_stat_ant(struct ath_softc *sc,
 271			  struct ath_hw_antcomb_conf *div_ant_conf,
 272			  int main_rssi_avg, int alt_rssi_avg)
 273{
 274	struct ath_antenna_stats *as_main = &sc->debug.stats.ant_stats[ANT_MAIN];
 275	struct ath_antenna_stats *as_alt = &sc->debug.stats.ant_stats[ANT_ALT];
 276
 277	as_main->lna_attempt_cnt[div_ant_conf->main_lna_conf]++;
 278	as_alt->lna_attempt_cnt[div_ant_conf->alt_lna_conf]++;
 279
 280	as_main->rssi_avg = main_rssi_avg;
 281	as_alt->rssi_avg = alt_rssi_avg;
 282}
 283
 284static ssize_t read_file_antenna_diversity(struct file *file,
 285					   char __user *user_buf,
 286					   size_t count, loff_t *ppos)
 287{
 288	struct ath_softc *sc = file->private_data;
 289	struct ath_hw *ah = sc->sc_ah;
 290	struct ath9k_hw_capabilities *pCap = &ah->caps;
 291	struct ath_antenna_stats *as_main = &sc->debug.stats.ant_stats[ANT_MAIN];
 292	struct ath_antenna_stats *as_alt = &sc->debug.stats.ant_stats[ANT_ALT];
 293	struct ath_hw_antcomb_conf div_ant_conf;
 294	unsigned int len = 0;
 295	const unsigned int size = 1024;
 296	ssize_t retval = 0;
 297	char *buf;
 298	static const char *lna_conf_str[4] = {
 299		"LNA1_MINUS_LNA2", "LNA2", "LNA1", "LNA1_PLUS_LNA2"
 300	};
 301
 302	buf = kzalloc(size, GFP_KERNEL);
 303	if (buf == NULL)
 304		return -ENOMEM;
 305
 306	if (!(pCap->hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB)) {
 307		len += scnprintf(buf + len, size - len, "%s\n",
 308				 "Antenna Diversity Combining is disabled");
 309		goto exit;
 310	}
 311
 312	ath9k_ps_wakeup(sc);
 313	ath9k_hw_antdiv_comb_conf_get(ah, &div_ant_conf);
 314	len += scnprintf(buf + len, size - len, "Current MAIN config : %s\n",
 315			 lna_conf_str[div_ant_conf.main_lna_conf]);
 316	len += scnprintf(buf + len, size - len, "Current ALT config  : %s\n",
 317			 lna_conf_str[div_ant_conf.alt_lna_conf]);
 318	len += scnprintf(buf + len, size - len, "Average MAIN RSSI   : %d\n",
 319			 as_main->rssi_avg);
 320	len += scnprintf(buf + len, size - len, "Average ALT RSSI    : %d\n\n",
 321			 as_alt->rssi_avg);
 322	ath9k_ps_restore(sc);
 323
 324	len += scnprintf(buf + len, size - len, "Packet Receive Cnt:\n");
 325	len += scnprintf(buf + len, size - len, "-------------------\n");
 326
 327	len += scnprintf(buf + len, size - len, "%30s%15s\n",
 328			 "MAIN", "ALT");
 329	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 330			 "TOTAL COUNT",
 331			 as_main->recv_cnt,
 332			 as_alt->recv_cnt);
 333	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 334			 "LNA1",
 335			 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1],
 336			 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1]);
 337	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 338			 "LNA2",
 339			 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2],
 340			 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2]);
 341	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 342			 "LNA1 + LNA2",
 343			 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
 344			 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]);
 345	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 346			 "LNA1 - LNA2",
 347			 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
 348			 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
 349
 350	len += scnprintf(buf + len, size - len, "\nLNA Config Attempts:\n");
 351	len += scnprintf(buf + len, size - len, "--------------------\n");
 352
 353	len += scnprintf(buf + len, size - len, "%30s%15s\n",
 354			 "MAIN", "ALT");
 355	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 356			 "LNA1",
 357			 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1],
 358			 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1]);
 359	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 360			 "LNA2",
 361			 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2],
 362			 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2]);
 363	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 364			 "LNA1 + LNA2",
 365			 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
 366			 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]);
 367	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 368			 "LNA1 - LNA2",
 369			 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
 370			 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
 371
 372exit:
 373	if (len > size)
 374		len = size;
 375
 376	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 377	kfree(buf);
 378
 379	return retval;
 380}
 381
 382static const struct file_operations fops_antenna_diversity = {
 383	.read = read_file_antenna_diversity,
 384	.open = simple_open,
 385	.owner = THIS_MODULE,
 386	.llseek = default_llseek,
 387};
 388
 389static int read_file_dma(struct seq_file *file, void *data)
 390{
 391	struct ieee80211_hw *hw = dev_get_drvdata(file->private);
 392	struct ath_softc *sc = hw->priv;
 393	struct ath_hw *ah = sc->sc_ah;
 394	u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
 395	int i, qcuOffset = 0, dcuOffset = 0;
 396	u32 *qcuBase = &val[0], *dcuBase = &val[4];
 397
 398	ath9k_ps_wakeup(sc);
 399
 400	REG_WRITE_D(ah, AR_MACMISC,
 401		  ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
 402		   (AR_MACMISC_MISC_OBS_BUS_1 <<
 403		    AR_MACMISC_MISC_OBS_BUS_MSB_S)));
 404
 405	seq_puts(file, "Raw DMA Debug values:\n");
 406
 407	for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
 408		if (i % 4 == 0)
 409			seq_puts(file, "\n");
 410
 411		val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
 412		seq_printf(file, "%d: %08x ", i, val[i]);
 413	}
 414
 415	seq_puts(file, "\n\n");
 416	seq_puts(file, "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
 417
 418	for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
 419		if (i == 8) {
 420			qcuOffset = 0;
 421			qcuBase++;
 422		}
 423
 424		if (i == 6) {
 425			dcuOffset = 0;
 426			dcuBase++;
 427		}
 428
 429		seq_printf(file, "%2d          %2x      %1x     %2x           %2x\n",
 430			   i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
 431			   (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
 432			   (val[2] & (0x7 << (i * 3))) >> (i * 3),
 433			   (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
 434	}
 435
 436	seq_puts(file, "\n");
 437
 438	seq_printf(file, "qcu_stitch state:   %2x    qcu_fetch state:        %2x\n",
 439		   (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
 440	seq_printf(file, "qcu_complete state: %2x    dcu_complete state:     %2x\n",
 441		   (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
 442	seq_printf(file, "dcu_arb state:      %2x    dcu_fp state:           %2x\n",
 443		   (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
 444	seq_printf(file, "chan_idle_dur:     %3d    chan_idle_dur_valid:     %1d\n",
 445		   (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
 446	seq_printf(file, "txfifo_valid_0:      %1d    txfifo_valid_1:          %1d\n",
 447		   (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
 448	seq_printf(file, "txfifo_dcu_num_0:   %2d    txfifo_dcu_num_1:       %2d\n",
 449		   (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
 450
 451	seq_printf(file, "pcu observe: 0x%x\n", REG_READ_D(ah, AR_OBS_BUS_1));
 452	seq_printf(file, "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
 453
 454	ath9k_ps_restore(sc);
 455
 456	return 0;
 457}
 458
 459void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
 460{
 461	if (status)
 462		sc->debug.stats.istats.total++;
 463	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 464		if (status & ATH9K_INT_RXLP)
 465			sc->debug.stats.istats.rxlp++;
 466		if (status & ATH9K_INT_RXHP)
 467			sc->debug.stats.istats.rxhp++;
 468		if (status & ATH9K_INT_BB_WATCHDOG)
 469			sc->debug.stats.istats.bb_watchdog++;
 470	} else {
 471		if (status & ATH9K_INT_RX)
 472			sc->debug.stats.istats.rxok++;
 473	}
 474	if (status & ATH9K_INT_RXEOL)
 475		sc->debug.stats.istats.rxeol++;
 476	if (status & ATH9K_INT_RXORN)
 477		sc->debug.stats.istats.rxorn++;
 478	if (status & ATH9K_INT_TX)
 479		sc->debug.stats.istats.txok++;
 480	if (status & ATH9K_INT_TXURN)
 481		sc->debug.stats.istats.txurn++;
 482	if (status & ATH9K_INT_RXPHY)
 483		sc->debug.stats.istats.rxphyerr++;
 484	if (status & ATH9K_INT_RXKCM)
 485		sc->debug.stats.istats.rx_keycache_miss++;
 486	if (status & ATH9K_INT_SWBA)
 487		sc->debug.stats.istats.swba++;
 488	if (status & ATH9K_INT_BMISS)
 489		sc->debug.stats.istats.bmiss++;
 490	if (status & ATH9K_INT_BNR)
 491		sc->debug.stats.istats.bnr++;
 492	if (status & ATH9K_INT_CST)
 493		sc->debug.stats.istats.cst++;
 494	if (status & ATH9K_INT_GTT)
 495		sc->debug.stats.istats.gtt++;
 496	if (status & ATH9K_INT_TIM)
 497		sc->debug.stats.istats.tim++;
 498	if (status & ATH9K_INT_CABEND)
 499		sc->debug.stats.istats.cabend++;
 500	if (status & ATH9K_INT_DTIMSYNC)
 501		sc->debug.stats.istats.dtimsync++;
 502	if (status & ATH9K_INT_DTIM)
 503		sc->debug.stats.istats.dtim++;
 504	if (status & ATH9K_INT_TSFOOR)
 505		sc->debug.stats.istats.tsfoor++;
 506	if (status & ATH9K_INT_MCI)
 507		sc->debug.stats.istats.mci++;
 508	if (status & ATH9K_INT_GENTIMER)
 509		sc->debug.stats.istats.gen_timer++;
 510}
 511
 512static int read_file_interrupt(struct seq_file *file, void *data)
 513{
 514	struct ieee80211_hw *hw = dev_get_drvdata(file->private);
 515	struct ath_softc *sc = hw->priv;
 516
 517#define PR_IS(a, s)						\
 518	do {							\
 519		seq_printf(file, "%21s: %10u\n", a,		\
 520			   sc->debug.stats.istats.s);		\
 521	} while (0)
 522
 523	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 524		PR_IS("RXLP", rxlp);
 525		PR_IS("RXHP", rxhp);
 526		PR_IS("WATCHDOG", bb_watchdog);
 527	} else {
 528		PR_IS("RX", rxok);
 529	}
 530	PR_IS("RXEOL", rxeol);
 531	PR_IS("RXORN", rxorn);
 532	PR_IS("TX", txok);
 533	PR_IS("TXURN", txurn);
 534	PR_IS("MIB", mib);
 535	PR_IS("RXPHY", rxphyerr);
 536	PR_IS("RXKCM", rx_keycache_miss);
 537	PR_IS("SWBA", swba);
 538	PR_IS("BMISS", bmiss);
 539	PR_IS("BNR", bnr);
 540	PR_IS("CST", cst);
 541	PR_IS("GTT", gtt);
 542	PR_IS("TIM", tim);
 543	PR_IS("CABEND", cabend);
 544	PR_IS("DTIMSYNC", dtimsync);
 545	PR_IS("DTIM", dtim);
 546	PR_IS("TSFOOR", tsfoor);
 547	PR_IS("MCI", mci);
 548	PR_IS("GENTIMER", gen_timer);
 549	PR_IS("TOTAL", total);
 550
 551	seq_puts(file, "SYNC_CAUSE stats:\n");
 552
 553	PR_IS("Sync-All", sync_cause_all);
 554	PR_IS("RTC-IRQ", sync_rtc_irq);
 555	PR_IS("MAC-IRQ", sync_mac_irq);
 556	PR_IS("EEPROM-Illegal-Access", eeprom_illegal_access);
 557	PR_IS("APB-Timeout", apb_timeout);
 558	PR_IS("PCI-Mode-Conflict", pci_mode_conflict);
 559	PR_IS("HOST1-Fatal", host1_fatal);
 560	PR_IS("HOST1-Perr", host1_perr);
 561	PR_IS("TRCV-FIFO-Perr", trcv_fifo_perr);
 562	PR_IS("RADM-CPL-EP", radm_cpl_ep);
 563	PR_IS("RADM-CPL-DLLP-Abort", radm_cpl_dllp_abort);
 564	PR_IS("RADM-CPL-TLP-Abort", radm_cpl_tlp_abort);
 565	PR_IS("RADM-CPL-ECRC-Err", radm_cpl_ecrc_err);
 566	PR_IS("RADM-CPL-Timeout", radm_cpl_timeout);
 567	PR_IS("Local-Bus-Timeout", local_timeout);
 568	PR_IS("PM-Access", pm_access);
 569	PR_IS("MAC-Awake", mac_awake);
 570	PR_IS("MAC-Asleep", mac_asleep);
 571	PR_IS("MAC-Sleep-Access", mac_sleep_access);
 572
 573	return 0;
 574}
 575
 576static int read_file_xmit(struct seq_file *file, void *data)
 577{
 578	struct ieee80211_hw *hw = dev_get_drvdata(file->private);
 579	struct ath_softc *sc = hw->priv;
 580
 581	seq_printf(file, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
 582
 583	PR("MPDUs Queued:    ", queued);
 584	PR("MPDUs Completed: ", completed);
 585	PR("MPDUs XRetried:  ", xretries);
 586	PR("Aggregates:      ", a_aggr);
 587	PR("AMPDUs Queued HW:", a_queued_hw);
 588	PR("AMPDUs Completed:", a_completed);
 589	PR("AMPDUs Retried:  ", a_retries);
 590	PR("AMPDUs XRetried: ", a_xretries);
 591	PR("TXERR Filtered:  ", txerr_filtered);
 592	PR("FIFO Underrun:   ", fifo_underrun);
 593	PR("TXOP Exceeded:   ", xtxop);
 594	PR("TXTIMER Expiry:  ", timer_exp);
 595	PR("DESC CFG Error:  ", desc_cfg_err);
 596	PR("DATA Underrun:   ", data_underrun);
 597	PR("DELIM Underrun:  ", delim_underrun);
 598	PR("TX-Pkts-All:     ", tx_pkts_all);
 599	PR("TX-Bytes-All:    ", tx_bytes_all);
 600	PR("HW-put-tx-buf:   ", puttxbuf);
 601	PR("HW-tx-start:     ", txstart);
 602	PR("HW-tx-proc-desc: ", txprocdesc);
 603	PR("TX-Failed:       ", txfailed);
 604
 605	return 0;
 606}
 607
 608static void print_queue(struct ath_softc *sc, struct ath_txq *txq,
 609			struct seq_file *file)
 610{
 611	ath_txq_lock(sc, txq);
 612
 613	seq_printf(file, "%s: %d ", "qnum", txq->axq_qnum);
 614	seq_printf(file, "%s: %2d ", "qdepth", txq->axq_depth);
 615	seq_printf(file, "%s: %2d ", "ampdu-depth", txq->axq_ampdu_depth);
 616	seq_printf(file, "%s: %3d\n", "pending", txq->pending_frames);
 617
 618	ath_txq_unlock(sc, txq);
 619}
 620
 621static int read_file_queues(struct seq_file *file, void *data)
 622{
 623	struct ieee80211_hw *hw = dev_get_drvdata(file->private);
 624	struct ath_softc *sc = hw->priv;
 625	struct ath_txq *txq;
 626	int i;
 627	static const char *qname[4] = {
 628		"VO", "VI", "BE", "BK"
 629	};
 630
 631	for (i = 0; i < IEEE80211_NUM_ACS; i++) {
 632		txq = sc->tx.txq_map[i];
 633		seq_printf(file, "(%s):  ", qname[i]);
 634		print_queue(sc, txq, file);
 635	}
 636
 637	seq_puts(file, "(CAB): ");
 638	print_queue(sc, sc->beacon.cabq, file);
 639
 640	return 0;
 641}
 642
 643static int read_file_misc(struct seq_file *file, void *data)
 644{
 645	struct ieee80211_hw *hw = dev_get_drvdata(file->private);
 646	struct ath_softc *sc = hw->priv;
 647	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 648	struct ath9k_vif_iter_data iter_data;
 649	struct ath_chanctx *ctx;
 650	unsigned int reg;
 651	u32 rxfilter, i;
 652
 653	seq_printf(file, "BSSID: %pM\n", common->curbssid);
 654	seq_printf(file, "BSSID-MASK: %pM\n", common->bssidmask);
 655	seq_printf(file, "OPMODE: %s\n",
 656		   ath_opmode_to_string(sc->sc_ah->opmode));
 657
 658	ath9k_ps_wakeup(sc);
 659	rxfilter = ath9k_hw_getrxfilter(sc->sc_ah);
 660	ath9k_ps_restore(sc);
 661
 662	seq_printf(file, "RXFILTER: 0x%x", rxfilter);
 663
 664	if (rxfilter & ATH9K_RX_FILTER_UCAST)
 665		seq_puts(file, " UCAST");
 666	if (rxfilter & ATH9K_RX_FILTER_MCAST)
 667		seq_puts(file, " MCAST");
 668	if (rxfilter & ATH9K_RX_FILTER_BCAST)
 669		seq_puts(file, " BCAST");
 670	if (rxfilter & ATH9K_RX_FILTER_CONTROL)
 671		seq_puts(file, " CONTROL");
 672	if (rxfilter & ATH9K_RX_FILTER_BEACON)
 673		seq_puts(file, " BEACON");
 674	if (rxfilter & ATH9K_RX_FILTER_PROM)
 675		seq_puts(file, " PROM");
 676	if (rxfilter & ATH9K_RX_FILTER_PROBEREQ)
 677		seq_puts(file, " PROBEREQ");
 678	if (rxfilter & ATH9K_RX_FILTER_PHYERR)
 679		seq_puts(file, " PHYERR");
 680	if (rxfilter & ATH9K_RX_FILTER_MYBEACON)
 681		seq_puts(file, " MYBEACON");
 682	if (rxfilter & ATH9K_RX_FILTER_COMP_BAR)
 683		seq_puts(file, " COMP_BAR");
 684	if (rxfilter & ATH9K_RX_FILTER_PSPOLL)
 685		seq_puts(file, " PSPOLL");
 686	if (rxfilter & ATH9K_RX_FILTER_PHYRADAR)
 687		seq_puts(file, " PHYRADAR");
 688	if (rxfilter & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
 689		seq_puts(file, " MCAST_BCAST_ALL");
 690	if (rxfilter & ATH9K_RX_FILTER_CONTROL_WRAPPER)
 691		seq_puts(file, " CONTROL_WRAPPER");
 692
 693	seq_puts(file, "\n");
 694
 695	reg = sc->sc_ah->imask;
 696
 697	seq_printf(file, "INTERRUPT-MASK: 0x%x", reg);
 698
 699	if (reg & ATH9K_INT_SWBA)
 700		seq_puts(file, " SWBA");
 701	if (reg & ATH9K_INT_BMISS)
 702		seq_puts(file, " BMISS");
 703	if (reg & ATH9K_INT_CST)
 704		seq_puts(file, " CST");
 705	if (reg & ATH9K_INT_RX)
 706		seq_puts(file, " RX");
 707	if (reg & ATH9K_INT_RXHP)
 708		seq_puts(file, " RXHP");
 709	if (reg & ATH9K_INT_RXLP)
 710		seq_puts(file, " RXLP");
 711	if (reg & ATH9K_INT_BB_WATCHDOG)
 712		seq_puts(file, " BB_WATCHDOG");
 713
 714	seq_puts(file, "\n");
 715
 716	i = 0;
 717	ath_for_each_chanctx(sc, ctx) {
 718		if (list_empty(&ctx->vifs))
 719			continue;
 720		ath9k_calculate_iter_data(sc, ctx, &iter_data);
 721
 722		seq_printf(file,
 723			   "VIFS: CTX %i(%i) AP: %i STA: %i MESH: %i",
 724			   i++, (int)(ctx->assigned), iter_data.naps,
 725			   iter_data.nstations,
 726			   iter_data.nmeshes);
 727		seq_printf(file, " ADHOC: %i OCB: %i TOTAL: %hi BEACON-VIF: %hi\n",
 728			   iter_data.nadhocs, iter_data.nocbs, sc->cur_chan->nvifs,
 729			   sc->nbcnvifs);
 730	}
 731
 732	return 0;
 733}
 734
 735static int read_file_reset(struct seq_file *file, void *data)
 736{
 737	struct ath_softc *sc = file->private;
 738	static const char * const reset_cause[__RESET_TYPE_MAX] = {
 739		[RESET_TYPE_USER] = "User reset",
 740		[RESET_TYPE_BB_HANG] = "Baseband Hang",
 741		[RESET_TYPE_BB_WATCHDOG] = "Baseband Watchdog",
 742		[RESET_TYPE_FATAL_INT] = "Fatal HW Error",
 743		[RESET_TYPE_TX_ERROR] = "TX HW error",
 744		[RESET_TYPE_TX_GTT] = "Transmit timeout",
 745		[RESET_TYPE_TX_HANG] = "TX Path Hang",
 746		[RESET_TYPE_PLL_HANG] = "PLL RX Hang",
 747		[RESET_TYPE_MAC_HANG] = "MAC Hang",
 748		[RESET_TYPE_BEACON_STUCK] = "Stuck Beacon",
 749		[RESET_TYPE_MCI] = "MCI Reset",
 750		[RESET_TYPE_CALIBRATION] = "Calibration error",
 751		[RESET_TX_DMA_ERROR] = "Tx DMA stop error",
 752		[RESET_RX_DMA_ERROR] = "Rx DMA stop error",
 753		[RESET_TYPE_RX_INACTIVE] = "Rx path inactive",
 754	};
 755	int i;
 756
 757	for (i = 0; i < ARRAY_SIZE(reset_cause); i++) {
 758		if (!reset_cause[i])
 759		    continue;
 760
 761		seq_printf(file, "%17s: %2d\n", reset_cause[i],
 762			   sc->debug.stats.reset[i]);
 763	}
 764
 765	return 0;
 766}
 767
 768static int open_file_reset(struct inode *inode, struct file *f)
 769{
 770	return single_open(f, read_file_reset, inode->i_private);
 771}
 772
 773static ssize_t write_file_reset(struct file *file,
 774				const char __user *user_buf,
 775				size_t count, loff_t *ppos)
 776{
 777	struct ath_softc *sc = file_inode(file)->i_private;
 778	struct ath_hw *ah = sc->sc_ah;
 779	struct ath_common *common = ath9k_hw_common(ah);
 780	unsigned long val;
 781	ssize_t ret;
 782
 783	ret = kstrtoul_from_user(user_buf, count, 0, &val);
 784	if (ret)
 785		return ret;
 786
 787	if (val != 1)
 788		return -EINVAL;
 789
 790	/* avoid rearming hw_reset_work on shutdown */
 791	mutex_lock(&sc->mutex);
 792	if (test_bit(ATH_OP_INVALID, &common->op_flags)) {
 793		mutex_unlock(&sc->mutex);
 794		return -EBUSY;
 795	}
 796
 797	ath9k_queue_reset(sc, RESET_TYPE_USER);
 798	mutex_unlock(&sc->mutex);
 799
 800	return count;
 801}
 802
 803static const struct file_operations fops_reset = {
 804	.read = seq_read,
 805	.write = write_file_reset,
 806	.open = open_file_reset,
 807	.owner = THIS_MODULE,
 808	.llseek = seq_lseek,
 809	.release = single_release,
 810};
 811
 812void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 813		       struct ath_tx_status *ts, struct ath_txq *txq,
 814		       unsigned int flags)
 815{
 816	int qnum = txq->axq_qnum;
 817
 818	TX_STAT_INC(sc, qnum, tx_pkts_all);
 819	sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
 820
 821	if (bf_isampdu(bf)) {
 822		if (flags & ATH_TX_ERROR)
 823			TX_STAT_INC(sc, qnum, a_xretries);
 824		else
 825			TX_STAT_INC(sc, qnum, a_completed);
 826	} else {
 827		if (ts->ts_status & ATH9K_TXERR_XRETRY)
 828			TX_STAT_INC(sc, qnum, xretries);
 829		else
 830			TX_STAT_INC(sc, qnum, completed);
 831	}
 832
 833	if (ts->ts_status & ATH9K_TXERR_FILT)
 834		TX_STAT_INC(sc, qnum, txerr_filtered);
 835	if (ts->ts_status & ATH9K_TXERR_FIFO)
 836		TX_STAT_INC(sc, qnum, fifo_underrun);
 837	if (ts->ts_status & ATH9K_TXERR_XTXOP)
 838		TX_STAT_INC(sc, qnum, xtxop);
 839	if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
 840		TX_STAT_INC(sc, qnum, timer_exp);
 841	if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
 842		TX_STAT_INC(sc, qnum, desc_cfg_err);
 843	if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
 844		TX_STAT_INC(sc, qnum, data_underrun);
 845	if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
 846		TX_STAT_INC(sc, qnum, delim_underrun);
 847}
 848
 849void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
 850{
 851	ath9k_cmn_debug_stat_rx(&sc->debug.stats.rxstats, rs);
 852}
 853
 854static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
 855				size_t count, loff_t *ppos)
 856{
 857	struct ath_softc *sc = file->private_data;
 858	char buf[32];
 859	unsigned int len;
 860
 861	len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
 862	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 863}
 864
 865static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
 866				 size_t count, loff_t *ppos)
 867{
 868	struct ath_softc *sc = file->private_data;
 869	unsigned long regidx;
 870	ssize_t ret;
 871
 872	ret = kstrtoul_from_user(user_buf, count, 0, &regidx);
 873	if (ret)
 874		return ret;
 875
 876	sc->debug.regidx = regidx;
 877	return count;
 878}
 879
 880static const struct file_operations fops_regidx = {
 881	.read = read_file_regidx,
 882	.write = write_file_regidx,
 883	.open = simple_open,
 884	.owner = THIS_MODULE,
 885	.llseek = default_llseek,
 886};
 887
 888static ssize_t read_file_regval(struct file *file, char __user *user_buf,
 889				size_t count, loff_t *ppos)
 890{
 891	struct ath_softc *sc = file->private_data;
 892	struct ath_hw *ah = sc->sc_ah;
 893	char buf[32];
 894	unsigned int len;
 895	u32 regval;
 896
 897	ath9k_ps_wakeup(sc);
 898	regval = REG_READ_D(ah, sc->debug.regidx);
 899	ath9k_ps_restore(sc);
 900	len = sprintf(buf, "0x%08x\n", regval);
 901	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 902}
 903
 904static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
 905				 size_t count, loff_t *ppos)
 906{
 907	struct ath_softc *sc = file->private_data;
 908	struct ath_hw *ah = sc->sc_ah;
 909	unsigned long regval;
 910	ssize_t ret;
 911
 912	ret = kstrtoul_from_user(user_buf, count, 0, &regval);
 913	if (ret)
 914		return ret;
 915
 916	ath9k_ps_wakeup(sc);
 917	REG_WRITE_D(ah, sc->debug.regidx, regval);
 918	ath9k_ps_restore(sc);
 919	return count;
 920}
 921
 922static const struct file_operations fops_regval = {
 923	.read = read_file_regval,
 924	.write = write_file_regval,
 925	.open = simple_open,
 926	.owner = THIS_MODULE,
 927	.llseek = default_llseek,
 928};
 929
 930#define REGDUMP_LINE_SIZE	20
 931
 932static int open_file_regdump(struct inode *inode, struct file *file)
 933{
 934	struct ath_softc *sc = inode->i_private;
 935	unsigned int len = 0;
 936	u8 *buf;
 937	int i, j = 0;
 938	unsigned long num_regs, regdump_len, max_reg_offset;
 939	static const struct reg_hole {
 940		u32 start;
 941		u32 end;
 942	} reg_hole_list[] = {
 943		{0x0200, 0x07fc},
 944		{0x0c00, 0x0ffc},
 945		{0x2000, 0x3ffc},
 946		{0x4100, 0x6ffc},
 947		{0x705c, 0x7ffc},
 948		{0x0000, 0x0000}
 949	};
 950
 951	max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x8800 : 0xb500;
 952	num_regs = max_reg_offset / 4 + 1;
 953	regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
 954	buf = vmalloc(regdump_len);
 955	if (!buf)
 956		return -ENOMEM;
 957
 958	ath9k_ps_wakeup(sc);
 959	for (i = 0; i < num_regs; i++) {
 960		if (reg_hole_list[j].start == i << 2) {
 961			i = reg_hole_list[j].end >> 2;
 962			j++;
 963			continue;
 964		}
 965
 966		len += scnprintf(buf + len, regdump_len - len,
 967			"0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
 968	}
 969	ath9k_ps_restore(sc);
 970
 971	file->private_data = buf;
 972
 973	return 0;
 974}
 975
 976static const struct file_operations fops_regdump = {
 977	.open = open_file_regdump,
 978	.read = ath9k_debugfs_read_buf,
 979	.release = ath9k_debugfs_release_buf,
 980	.owner = THIS_MODULE,
 981	.llseek = default_llseek,/* read accesses f_pos */
 982};
 983
 984static int read_file_dump_nfcal(struct seq_file *file, void *data)
 985{
 986	struct ieee80211_hw *hw = dev_get_drvdata(file->private);
 987	struct ath_softc *sc = hw->priv;
 988	struct ath_hw *ah = sc->sc_ah;
 989	struct ath9k_nfcal_hist *h = sc->cur_chan->caldata.nfCalHist;
 990	struct ath_common *common = ath9k_hw_common(ah);
 991	struct ieee80211_conf *conf = &common->hw->conf;
 992	u32 i, j;
 993	u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
 994	u8 nread;
 995
 996	seq_printf(file, "Channel Noise Floor : %d\n", ah->noise);
 997	seq_puts(file, "Chain | privNF | # Readings | NF Readings\n");
 998	for (i = 0; i < NUM_NF_READINGS; i++) {
 999		if (!(chainmask & (1 << i)) ||
1000		    ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
1001			continue;
1002
1003		nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount;
1004		seq_printf(file, " %d\t %d\t %d\t\t", i, h[i].privNF, nread);
1005		for (j = 0; j < nread; j++)
1006			seq_printf(file, " %d", h[i].nfCalBuffer[j]);
1007		seq_puts(file, "\n");
1008	}
1009
1010	return 0;
1011}
1012
1013#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1014static ssize_t read_file_btcoex(struct file *file, char __user *user_buf,
1015				size_t count, loff_t *ppos)
1016{
1017	struct ath_softc *sc = file->private_data;
1018	u32 len = 0, size = 1500;
1019	char *buf;
1020	size_t retval;
1021
1022	buf = kzalloc(size, GFP_KERNEL);
1023	if (buf == NULL)
1024		return -ENOMEM;
1025
1026	if (!sc->sc_ah->common.btcoex_enabled) {
1027		len = scnprintf(buf, size, "%s\n",
1028				"BTCOEX is disabled");
1029		goto exit;
1030	}
1031
1032	len = ath9k_dump_btcoex(sc, buf, size);
1033exit:
1034	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1035	kfree(buf);
1036
1037	return retval;
1038}
1039
1040static const struct file_operations fops_btcoex = {
1041	.read = read_file_btcoex,
1042	.open = simple_open,
1043	.owner = THIS_MODULE,
1044	.llseek = default_llseek,
1045};
1046#endif
1047
1048#ifdef CONFIG_ATH9K_DYNACK
1049static ssize_t read_file_ackto(struct file *file, char __user *user_buf,
1050			       size_t count, loff_t *ppos)
1051{
1052	struct ath_softc *sc = file->private_data;
1053	struct ath_hw *ah = sc->sc_ah;
1054	char buf[32];
1055	unsigned int len;
1056
1057	len = sprintf(buf, "%u %c\n", ah->dynack.ackto,
1058		      (ah->dynack.enabled) ? 'A' : 'S');
1059
1060	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1061}
1062
1063static const struct file_operations fops_ackto = {
1064	.read = read_file_ackto,
1065	.open = simple_open,
1066	.owner = THIS_MODULE,
1067	.llseek = default_llseek,
1068};
1069#endif
1070
1071#ifdef CONFIG_ATH9K_WOW
1072
1073static ssize_t read_file_wow(struct file *file, char __user *user_buf,
1074			     size_t count, loff_t *ppos)
1075{
1076	struct ath_softc *sc = file->private_data;
1077	unsigned int len = 0, size = 32;
1078	ssize_t retval;
1079	char *buf;
1080
1081	buf = kzalloc(size, GFP_KERNEL);
1082	if (!buf)
1083		return -ENOMEM;
1084
1085	len += scnprintf(buf + len, size - len, "WOW: %s\n",
1086			 sc->force_wow ? "ENABLED" : "DISABLED");
1087
1088	if (len > size)
1089		len = size;
1090
1091	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1092	kfree(buf);
1093
1094	return retval;
1095}
1096
1097static ssize_t write_file_wow(struct file *file, const char __user *user_buf,
1098			      size_t count, loff_t *ppos)
1099{
1100	struct ath_softc *sc = file->private_data;
1101	unsigned long val;
1102	ssize_t ret;
1103
1104	ret = kstrtoul_from_user(user_buf, count, 0, &val);
1105	if (ret)
1106		return ret;
1107
1108	if (val != 1)
1109		return -EINVAL;
1110
1111	if (!sc->force_wow) {
1112		sc->force_wow = true;
1113		ath9k_init_wow(sc->hw);
1114	}
1115
1116	return count;
1117}
1118
1119static const struct file_operations fops_wow = {
1120	.read = read_file_wow,
1121	.write = write_file_wow,
1122	.open = simple_open,
1123	.owner = THIS_MODULE,
1124	.llseek = default_llseek,
1125};
1126
1127#endif
1128
1129static ssize_t read_file_tpc(struct file *file, char __user *user_buf,
1130			     size_t count, loff_t *ppos)
1131{
1132	struct ath_softc *sc = file->private_data;
1133	struct ath_hw *ah = sc->sc_ah;
1134	unsigned int len = 0, size = 32;
1135	ssize_t retval;
1136	char *buf;
1137
1138	buf = kzalloc(size, GFP_KERNEL);
1139	if (!buf)
1140		return -ENOMEM;
1141
1142	len += scnprintf(buf + len, size - len, "%s\n",
1143			 ah->tpc_enabled ? "ENABLED" : "DISABLED");
1144
1145	if (len > size)
1146		len = size;
1147
1148	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1149	kfree(buf);
1150
1151	return retval;
1152}
1153
1154static ssize_t write_file_tpc(struct file *file, const char __user *user_buf,
1155			      size_t count, loff_t *ppos)
1156{
1157	struct ath_softc *sc = file->private_data;
1158	struct ath_hw *ah = sc->sc_ah;
1159	unsigned long val;
1160	ssize_t ret;
1161	bool tpc_enabled;
1162
1163	ret = kstrtoul_from_user(user_buf, count, 0, &val);
1164	if (ret)
1165		return ret;
1166
1167	if (val > 1)
1168		return -EINVAL;
1169
1170	tpc_enabled = !!val;
1171
1172	if (tpc_enabled != ah->tpc_enabled) {
1173		ah->tpc_enabled = tpc_enabled;
1174
1175		mutex_lock(&sc->mutex);
1176		ath9k_set_txpower(sc, NULL);
1177		mutex_unlock(&sc->mutex);
1178	}
1179
1180	return count;
1181}
1182
1183static const struct file_operations fops_tpc = {
1184	.read = read_file_tpc,
1185	.write = write_file_tpc,
1186	.open = simple_open,
1187	.owner = THIS_MODULE,
1188	.llseek = default_llseek,
1189};
1190
1191static ssize_t read_file_nf_override(struct file *file,
1192				     char __user *user_buf,
1193				     size_t count, loff_t *ppos)
1194{
1195	struct ath_softc *sc = file->private_data;
1196	struct ath_hw *ah = sc->sc_ah;
1197	char buf[32];
1198	unsigned int len;
1199
1200	if (ah->nf_override == 0)
1201		len = sprintf(buf, "off\n");
1202	else
1203		len = sprintf(buf, "%d\n", ah->nf_override);
1204
1205	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1206}
1207
1208static ssize_t write_file_nf_override(struct file *file,
1209				      const char __user *user_buf,
1210				      size_t count, loff_t *ppos)
1211{
1212	struct ath_softc *sc = file->private_data;
1213	struct ath_hw *ah = sc->sc_ah;
1214	long val;
1215	char buf[32];
1216	ssize_t len;
1217
1218	len = min(count, sizeof(buf) - 1);
1219	if (copy_from_user(buf, user_buf, len))
1220		return -EFAULT;
1221
1222	buf[len] = '\0';
1223	if (strncmp("off", buf, 3) == 0)
1224		val = 0;
1225	else if (kstrtol(buf, 0, &val))
1226		return -EINVAL;
1227
1228	if (val > 0)
1229		return -EINVAL;
1230
1231	if (val < -120)
1232		return -EINVAL;
1233
1234	ah->nf_override = val;
1235
1236	if (ah->curchan) {
1237		ath9k_ps_wakeup(sc);
1238		ath9k_hw_loadnf(ah, ah->curchan);
1239		ath9k_ps_restore(sc);
1240	}
1241
1242	return count;
1243}
1244
1245static const struct file_operations fops_nf_override = {
1246	.read = read_file_nf_override,
1247	.write = write_file_nf_override,
1248	.open = simple_open,
1249	.owner = THIS_MODULE,
1250	.llseek = default_llseek,
1251};
1252
1253/* Ethtool support for get-stats */
1254
1255#define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
1256static const char ath9k_gstrings_stats[][ETH_GSTRING_LEN] = {
1257	"tx_pkts_nic",
1258	"tx_bytes_nic",
1259	"rx_pkts_nic",
1260	"rx_bytes_nic",
1261	AMKSTR(d_tx_pkts),
1262	AMKSTR(d_tx_bytes),
1263	AMKSTR(d_tx_mpdus_queued),
1264	AMKSTR(d_tx_mpdus_completed),
1265	AMKSTR(d_tx_mpdu_xretries),
1266	AMKSTR(d_tx_aggregates),
1267	AMKSTR(d_tx_ampdus_queued_hw),
1268	AMKSTR(d_tx_ampdus_completed),
1269	AMKSTR(d_tx_ampdu_retries),
1270	AMKSTR(d_tx_ampdu_xretries),
1271	AMKSTR(d_tx_fifo_underrun),
1272	AMKSTR(d_tx_op_exceeded),
1273	AMKSTR(d_tx_timer_expiry),
1274	AMKSTR(d_tx_desc_cfg_err),
1275	AMKSTR(d_tx_data_underrun),
1276	AMKSTR(d_tx_delim_underrun),
1277	"d_rx_crc_err",
1278	"d_rx_decrypt_crc_err",
1279	"d_rx_phy_err",
1280	"d_rx_mic_err",
1281	"d_rx_pre_delim_crc_err",
1282	"d_rx_post_delim_crc_err",
1283	"d_rx_decrypt_busy_err",
1284
1285	"d_rx_phyerr_radar",
1286	"d_rx_phyerr_ofdm_timing",
1287	"d_rx_phyerr_cck_timing",
1288
1289};
1290#define ATH9K_SSTATS_LEN ARRAY_SIZE(ath9k_gstrings_stats)
1291
1292void ath9k_get_et_strings(struct ieee80211_hw *hw,
1293			  struct ieee80211_vif *vif,
1294			  u32 sset, u8 *data)
1295{
1296	if (sset == ETH_SS_STATS)
1297		memcpy(data, ath9k_gstrings_stats,
1298		       sizeof(ath9k_gstrings_stats));
1299}
1300
1301int ath9k_get_et_sset_count(struct ieee80211_hw *hw,
1302			    struct ieee80211_vif *vif, int sset)
1303{
1304	if (sset == ETH_SS_STATS)
1305		return ATH9K_SSTATS_LEN;
1306	return 0;
1307}
1308
1309#define AWDATA(elem)							\
1310	do {								\
1311		data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].elem; \
1312		data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].elem; \
1313		data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].elem; \
1314		data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].elem; \
1315	} while (0)
1316
1317#define AWDATA_RX(elem)						\
1318	do {							\
1319		data[i++] = sc->debug.stats.rxstats.elem;	\
1320	} while (0)
1321
1322void ath9k_get_et_stats(struct ieee80211_hw *hw,
1323			struct ieee80211_vif *vif,
1324			struct ethtool_stats *stats, u64 *data)
1325{
1326	struct ath_softc *sc = hw->priv;
1327	int i = 0;
1328
1329	data[i++] = ((u64)sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_pkts_all +
1330		     sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_pkts_all +
1331		     sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_pkts_all +
1332		     sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_pkts_all);
1333	data[i++] = ((u64)sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_bytes_all +
1334		     sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_bytes_all +
1335		     sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_bytes_all +
1336		     sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_bytes_all);
1337	AWDATA_RX(rx_pkts_all);
1338	AWDATA_RX(rx_bytes_all);
1339
1340	AWDATA(tx_pkts_all);
1341	AWDATA(tx_bytes_all);
1342	AWDATA(queued);
1343	AWDATA(completed);
1344	AWDATA(xretries);
1345	AWDATA(a_aggr);
1346	AWDATA(a_queued_hw);
1347	AWDATA(a_completed);
1348	AWDATA(a_retries);
1349	AWDATA(a_xretries);
1350	AWDATA(fifo_underrun);
1351	AWDATA(xtxop);
1352	AWDATA(timer_exp);
1353	AWDATA(desc_cfg_err);
1354	AWDATA(data_underrun);
1355	AWDATA(delim_underrun);
1356
1357	AWDATA_RX(crc_err);
1358	AWDATA_RX(decrypt_crc_err);
1359	AWDATA_RX(phy_err);
1360	AWDATA_RX(mic_err);
1361	AWDATA_RX(pre_delim_crc_err);
1362	AWDATA_RX(post_delim_crc_err);
1363	AWDATA_RX(decrypt_busy_err);
1364
1365	AWDATA_RX(phy_err_stats[ATH9K_PHYERR_RADAR]);
1366	AWDATA_RX(phy_err_stats[ATH9K_PHYERR_OFDM_TIMING]);
1367	AWDATA_RX(phy_err_stats[ATH9K_PHYERR_CCK_TIMING]);
1368
1369	WARN_ON(i != ATH9K_SSTATS_LEN);
1370}
1371
1372void ath9k_deinit_debug(struct ath_softc *sc)
1373{
1374	ath9k_cmn_spectral_deinit_debug(&sc->spec_priv);
1375}
1376
1377int ath9k_init_debug(struct ath_hw *ah)
1378{
1379	struct ath_common *common = ath9k_hw_common(ah);
1380	struct ath_softc *sc = common->priv;
1381
1382	sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
1383						   sc->hw->wiphy->debugfsdir);
1384
1385#ifdef CONFIG_ATH_DEBUG
1386	debugfs_create_file("debug", 0600, sc->debug.debugfs_phy,
1387			    sc, &fops_debug);
1388#endif
1389
1390	ath9k_dfs_init_debug(sc);
1391	ath9k_tx99_init_debug(sc);
1392	ath9k_cmn_spectral_init_debug(&sc->spec_priv, sc->debug.debugfs_phy);
1393
1394	debugfs_create_devm_seqfile(sc->dev, "dma", sc->debug.debugfs_phy,
1395				    read_file_dma);
1396	debugfs_create_devm_seqfile(sc->dev, "interrupt", sc->debug.debugfs_phy,
1397				    read_file_interrupt);
1398	debugfs_create_devm_seqfile(sc->dev, "xmit", sc->debug.debugfs_phy,
1399				    read_file_xmit);
1400	debugfs_create_devm_seqfile(sc->dev, "queues", sc->debug.debugfs_phy,
1401				    read_file_queues);
1402	debugfs_create_devm_seqfile(sc->dev, "misc", sc->debug.debugfs_phy,
1403				    read_file_misc);
1404	debugfs_create_file("reset", 0600, sc->debug.debugfs_phy,
1405			    sc, &fops_reset);
1406
1407	ath9k_cmn_debug_recv(sc->debug.debugfs_phy, &sc->debug.stats.rxstats);
1408	ath9k_cmn_debug_phy_err(sc->debug.debugfs_phy, &sc->debug.stats.rxstats);
1409
1410	debugfs_create_u8("rx_chainmask", 0400, sc->debug.debugfs_phy,
1411			  &ah->rxchainmask);
1412	debugfs_create_u8("tx_chainmask", 0400, sc->debug.debugfs_phy,
1413			  &ah->txchainmask);
1414	debugfs_create_file("ani", 0600,
1415			    sc->debug.debugfs_phy, sc, &fops_ani);
1416	debugfs_create_bool("paprd", 0600, sc->debug.debugfs_phy,
1417			    &sc->sc_ah->config.enable_paprd);
1418	debugfs_create_file("regidx", 0600, sc->debug.debugfs_phy,
1419			    sc, &fops_regidx);
1420	debugfs_create_file("regval", 0600, sc->debug.debugfs_phy,
1421			    sc, &fops_regval);
1422	debugfs_create_bool("ignore_extcca", 0600,
1423			    sc->debug.debugfs_phy,
1424			    &ah->config.cwm_ignore_extcca);
1425	debugfs_create_file("regdump", 0400, sc->debug.debugfs_phy, sc,
1426			    &fops_regdump);
1427	debugfs_create_devm_seqfile(sc->dev, "dump_nfcal",
1428				    sc->debug.debugfs_phy,
1429				    read_file_dump_nfcal);
1430
1431	ath9k_cmn_debug_base_eeprom(sc->debug.debugfs_phy, sc->sc_ah);
1432	ath9k_cmn_debug_modal_eeprom(sc->debug.debugfs_phy, sc->sc_ah);
1433
1434	debugfs_create_u32("gpio_mask", 0600,
1435			   sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
1436	debugfs_create_u32("gpio_val", 0600,
1437			   sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
1438	debugfs_create_file("antenna_diversity", 0400,
1439			    sc->debug.debugfs_phy, sc, &fops_antenna_diversity);
1440#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1441	debugfs_create_file("bt_ant_diversity", 0600,
1442			    sc->debug.debugfs_phy, sc, &fops_bt_ant_diversity);
1443	debugfs_create_file("btcoex", 0400, sc->debug.debugfs_phy, sc,
1444			    &fops_btcoex);
1445#endif
1446
1447#ifdef CONFIG_ATH9K_WOW
1448	debugfs_create_file("wow", 0600, sc->debug.debugfs_phy, sc, &fops_wow);
1449#endif
1450
1451#ifdef CONFIG_ATH9K_DYNACK
1452	debugfs_create_file("ack_to", 0400, sc->debug.debugfs_phy,
1453			    sc, &fops_ackto);
1454#endif
1455	debugfs_create_file("tpc", 0600, sc->debug.debugfs_phy, sc, &fops_tpc);
1456
1457	debugfs_create_file("nf_override", 0600,
1458			    sc->debug.debugfs_phy, sc, &fops_nf_override);
1459
1460	return 0;
1461}