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 <asm/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	char buf[32];
 105	ssize_t len;
 106
 107	len = min(count, sizeof(buf) - 1);
 108	if (copy_from_user(buf, user_buf, len))
 109		return -EFAULT;
 110
 111	buf[len] = '\0';
 112	if (kstrtoul(buf, 0, &mask))
 113		return -EINVAL;
 114
 115	common->debug_mask = mask;
 116	return count;
 117}
 118
 119static const struct file_operations fops_debug = {
 120	.read = read_file_debug,
 121	.write = write_file_debug,
 122	.open = simple_open,
 123	.owner = THIS_MODULE,
 124	.llseek = default_llseek,
 125};
 126
 127#endif
 128
 129#define DMA_BUF_LEN 1024
 130
 131
 132static ssize_t read_file_ani(struct file *file, char __user *user_buf,
 133			     size_t count, loff_t *ppos)
 134{
 135	struct ath_softc *sc = file->private_data;
 136	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 137	struct ath_hw *ah = sc->sc_ah;
 138	unsigned int len = 0;
 139	const unsigned int size = 1024;
 140	ssize_t retval = 0;
 141	char *buf;
 142	int i;
 143	struct {
 144		const char *name;
 145		unsigned int val;
 146	} ani_info[] = {
 147		{ "ANI RESET", ah->stats.ast_ani_reset },
 148		{ "OFDM LEVEL", ah->ani.ofdmNoiseImmunityLevel },
 149		{ "CCK LEVEL", ah->ani.cckNoiseImmunityLevel },
 150		{ "SPUR UP", ah->stats.ast_ani_spurup },
 151		{ "SPUR DOWN", ah->stats.ast_ani_spurup },
 152		{ "OFDM WS-DET ON", ah->stats.ast_ani_ofdmon },
 153		{ "OFDM WS-DET OFF", ah->stats.ast_ani_ofdmoff },
 154		{ "MRC-CCK ON", ah->stats.ast_ani_ccklow },
 155		{ "MRC-CCK OFF", ah->stats.ast_ani_cckhigh },
 156		{ "FIR-STEP UP", ah->stats.ast_ani_stepup },
 157		{ "FIR-STEP DOWN", ah->stats.ast_ani_stepdown },
 158		{ "INV LISTENTIME", ah->stats.ast_ani_lneg_or_lzero },
 159		{ "OFDM ERRORS", ah->stats.ast_ani_ofdmerrs },
 160		{ "CCK ERRORS", ah->stats.ast_ani_cckerrs },
 161	};
 162
 163	buf = kzalloc(size, GFP_KERNEL);
 164	if (buf == NULL)
 165		return -ENOMEM;
 166
 167	len += scnprintf(buf + len, size - len, "%15s: %s\n", "ANI",
 168			 common->disable_ani ? "DISABLED" : "ENABLED");
 169
 170	if (common->disable_ani)
 171		goto exit;
 172
 173	for (i = 0; i < ARRAY_SIZE(ani_info); i++)
 174		len += scnprintf(buf + len, size - len, "%15s: %u\n",
 175				 ani_info[i].name, ani_info[i].val);
 176
 177exit:
 178	if (len > size)
 179		len = size;
 180
 181	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 182	kfree(buf);
 183
 184	return retval;
 185}
 186
 187static ssize_t write_file_ani(struct file *file,
 188			      const char __user *user_buf,
 189			      size_t count, loff_t *ppos)
 190{
 191	struct ath_softc *sc = file->private_data;
 192	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 193	unsigned long ani;
 194	char buf[32];
 195	ssize_t len;
 196
 197	len = min(count, sizeof(buf) - 1);
 198	if (copy_from_user(buf, user_buf, len))
 199		return -EFAULT;
 200
 201	buf[len] = '\0';
 202	if (kstrtoul(buf, 0, &ani))
 203		return -EINVAL;
 204
 205	if (ani > 1)
 206		return -EINVAL;
 207
 208	common->disable_ani = !ani;
 209
 210	if (common->disable_ani) {
 211		clear_bit(ATH_OP_ANI_RUN, &common->op_flags);
 212		ath_stop_ani(sc);
 213	} else {
 214		ath_check_ani(sc);
 215	}
 216
 217	return count;
 218}
 219
 220static const struct file_operations fops_ani = {
 221	.read = read_file_ani,
 222	.write = write_file_ani,
 223	.open = simple_open,
 224	.owner = THIS_MODULE,
 225	.llseek = default_llseek,
 226};
 227
 228#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 229
 230static ssize_t read_file_bt_ant_diversity(struct file *file,
 231					  char __user *user_buf,
 232					  size_t count, loff_t *ppos)
 233{
 234	struct ath_softc *sc = file->private_data;
 235	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 236	char buf[32];
 237	unsigned int len;
 238
 239	len = sprintf(buf, "%d\n", common->bt_ant_diversity);
 240	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 241}
 242
 243static ssize_t write_file_bt_ant_diversity(struct file *file,
 244					   const char __user *user_buf,
 245					   size_t count, loff_t *ppos)
 246{
 247	struct ath_softc *sc = file->private_data;
 248	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 249	struct ath9k_hw_capabilities *pCap = &sc->sc_ah->caps;
 250	unsigned long bt_ant_diversity;
 251	char buf[32];
 252	ssize_t len;
 253
 254	len = min(count, sizeof(buf) - 1);
 255	if (copy_from_user(buf, user_buf, len))
 256		return -EFAULT;
 257
 258	if (!(pCap->hw_caps & ATH9K_HW_CAP_BT_ANT_DIV))
 259		goto exit;
 260
 261	buf[len] = '\0';
 262	if (kstrtoul(buf, 0, &bt_ant_diversity))
 263		return -EINVAL;
 264
 265	common->bt_ant_diversity = !!bt_ant_diversity;
 266	ath9k_ps_wakeup(sc);
 267	ath9k_hw_set_bt_ant_diversity(sc->sc_ah, common->bt_ant_diversity);
 268	ath_dbg(common, CONFIG, "Enable WLAN/BT RX Antenna diversity: %d\n",
 269		common->bt_ant_diversity);
 270	ath9k_ps_restore(sc);
 271exit:
 272	return count;
 273}
 274
 275static const struct file_operations fops_bt_ant_diversity = {
 276	.read = read_file_bt_ant_diversity,
 277	.write = write_file_bt_ant_diversity,
 278	.open = simple_open,
 279	.owner = THIS_MODULE,
 280	.llseek = default_llseek,
 281};
 282
 283#endif
 284
 285void ath9k_debug_stat_ant(struct ath_softc *sc,
 286			  struct ath_hw_antcomb_conf *div_ant_conf,
 287			  int main_rssi_avg, int alt_rssi_avg)
 288{
 289	struct ath_antenna_stats *as_main = &sc->debug.stats.ant_stats[ANT_MAIN];
 290	struct ath_antenna_stats *as_alt = &sc->debug.stats.ant_stats[ANT_ALT];
 291
 292	as_main->lna_attempt_cnt[div_ant_conf->main_lna_conf]++;
 293	as_alt->lna_attempt_cnt[div_ant_conf->alt_lna_conf]++;
 294
 295	as_main->rssi_avg = main_rssi_avg;
 296	as_alt->rssi_avg = alt_rssi_avg;
 297}
 298
 299static ssize_t read_file_antenna_diversity(struct file *file,
 300					   char __user *user_buf,
 301					   size_t count, loff_t *ppos)
 302{
 303	struct ath_softc *sc = file->private_data;
 304	struct ath_hw *ah = sc->sc_ah;
 305	struct ath9k_hw_capabilities *pCap = &ah->caps;
 306	struct ath_antenna_stats *as_main = &sc->debug.stats.ant_stats[ANT_MAIN];
 307	struct ath_antenna_stats *as_alt = &sc->debug.stats.ant_stats[ANT_ALT];
 308	struct ath_hw_antcomb_conf div_ant_conf;
 309	unsigned int len = 0;
 310	const unsigned int size = 1024;
 311	ssize_t retval = 0;
 312	char *buf;
 313	static const char *lna_conf_str[4] = {
 314		"LNA1_MINUS_LNA2", "LNA2", "LNA1", "LNA1_PLUS_LNA2"
 315	};
 316
 317	buf = kzalloc(size, GFP_KERNEL);
 318	if (buf == NULL)
 319		return -ENOMEM;
 320
 321	if (!(pCap->hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB)) {
 322		len += scnprintf(buf + len, size - len, "%s\n",
 323				 "Antenna Diversity Combining is disabled");
 324		goto exit;
 325	}
 326
 327	ath9k_ps_wakeup(sc);
 328	ath9k_hw_antdiv_comb_conf_get(ah, &div_ant_conf);
 329	len += scnprintf(buf + len, size - len, "Current MAIN config : %s\n",
 330			 lna_conf_str[div_ant_conf.main_lna_conf]);
 331	len += scnprintf(buf + len, size - len, "Current ALT config  : %s\n",
 332			 lna_conf_str[div_ant_conf.alt_lna_conf]);
 333	len += scnprintf(buf + len, size - len, "Average MAIN RSSI   : %d\n",
 334			 as_main->rssi_avg);
 335	len += scnprintf(buf + len, size - len, "Average ALT RSSI    : %d\n\n",
 336			 as_alt->rssi_avg);
 337	ath9k_ps_restore(sc);
 338
 339	len += scnprintf(buf + len, size - len, "Packet Receive Cnt:\n");
 340	len += scnprintf(buf + len, size - len, "-------------------\n");
 341
 342	len += scnprintf(buf + len, size - len, "%30s%15s\n",
 343			 "MAIN", "ALT");
 344	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 345			 "TOTAL COUNT",
 346			 as_main->recv_cnt,
 347			 as_alt->recv_cnt);
 348	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 349			 "LNA1",
 350			 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1],
 351			 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1]);
 352	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 353			 "LNA2",
 354			 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2],
 355			 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2]);
 356	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 357			 "LNA1 + LNA2",
 358			 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
 359			 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]);
 360	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 361			 "LNA1 - LNA2",
 362			 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
 363			 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
 364
 365	len += scnprintf(buf + len, size - len, "\nLNA Config Attempts:\n");
 366	len += scnprintf(buf + len, size - len, "--------------------\n");
 367
 368	len += scnprintf(buf + len, size - len, "%30s%15s\n",
 369			 "MAIN", "ALT");
 370	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 371			 "LNA1",
 372			 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1],
 373			 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1]);
 374	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 375			 "LNA2",
 376			 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2],
 377			 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2]);
 378	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 379			 "LNA1 + LNA2",
 380			 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
 381			 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]);
 382	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 383			 "LNA1 - LNA2",
 384			 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
 385			 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
 386
 387exit:
 388	if (len > size)
 389		len = size;
 390
 391	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 392	kfree(buf);
 393
 394	return retval;
 395}
 396
 397static const struct file_operations fops_antenna_diversity = {
 398	.read = read_file_antenna_diversity,
 399	.open = simple_open,
 400	.owner = THIS_MODULE,
 401	.llseek = default_llseek,
 402};
 403
 404static int read_file_dma(struct seq_file *file, void *data)
 405{
 406	struct ieee80211_hw *hw = dev_get_drvdata(file->private);
 407	struct ath_softc *sc = hw->priv;
 408	struct ath_hw *ah = sc->sc_ah;
 409	u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
 410	int i, qcuOffset = 0, dcuOffset = 0;
 411	u32 *qcuBase = &val[0], *dcuBase = &val[4];
 412
 413	ath9k_ps_wakeup(sc);
 414
 415	REG_WRITE_D(ah, AR_MACMISC,
 416		  ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
 417		   (AR_MACMISC_MISC_OBS_BUS_1 <<
 418		    AR_MACMISC_MISC_OBS_BUS_MSB_S)));
 419
 420	seq_puts(file, "Raw DMA Debug values:\n");
 421
 422	for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
 423		if (i % 4 == 0)
 424			seq_puts(file, "\n");
 425
 426		val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
 427		seq_printf(file, "%d: %08x ", i, val[i]);
 428	}
 429
 430	seq_puts(file, "\n\n");
 431	seq_puts(file, "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
 432
 433	for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
 434		if (i == 8) {
 435			qcuOffset = 0;
 436			qcuBase++;
 437		}
 438
 439		if (i == 6) {
 440			dcuOffset = 0;
 441			dcuBase++;
 442		}
 443
 444		seq_printf(file, "%2d          %2x      %1x     %2x           %2x\n",
 445			   i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
 446			   (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
 447			   (val[2] & (0x7 << (i * 3))) >> (i * 3),
 448			   (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
 449	}
 450
 451	seq_puts(file, "\n");
 452
 453	seq_printf(file, "qcu_stitch state:   %2x    qcu_fetch state:        %2x\n",
 454		   (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
 455	seq_printf(file, "qcu_complete state: %2x    dcu_complete state:     %2x\n",
 456		   (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
 457	seq_printf(file, "dcu_arb state:      %2x    dcu_fp state:           %2x\n",
 458		   (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
 459	seq_printf(file, "chan_idle_dur:     %3d    chan_idle_dur_valid:     %1d\n",
 460		   (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
 461	seq_printf(file, "txfifo_valid_0:      %1d    txfifo_valid_1:          %1d\n",
 462		   (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
 463	seq_printf(file, "txfifo_dcu_num_0:   %2d    txfifo_dcu_num_1:       %2d\n",
 464		   (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
 465
 466	seq_printf(file, "pcu observe: 0x%x\n", REG_READ_D(ah, AR_OBS_BUS_1));
 467	seq_printf(file, "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
 468
 469	ath9k_ps_restore(sc);
 470
 471	return 0;
 472}
 473
 474void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
 475{
 476	if (status)
 477		sc->debug.stats.istats.total++;
 478	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 479		if (status & ATH9K_INT_RXLP)
 480			sc->debug.stats.istats.rxlp++;
 481		if (status & ATH9K_INT_RXHP)
 482			sc->debug.stats.istats.rxhp++;
 483		if (status & ATH9K_INT_BB_WATCHDOG)
 484			sc->debug.stats.istats.bb_watchdog++;
 485	} else {
 486		if (status & ATH9K_INT_RX)
 487			sc->debug.stats.istats.rxok++;
 488	}
 489	if (status & ATH9K_INT_RXEOL)
 490		sc->debug.stats.istats.rxeol++;
 491	if (status & ATH9K_INT_RXORN)
 492		sc->debug.stats.istats.rxorn++;
 493	if (status & ATH9K_INT_TX)
 494		sc->debug.stats.istats.txok++;
 495	if (status & ATH9K_INT_TXURN)
 496		sc->debug.stats.istats.txurn++;
 497	if (status & ATH9K_INT_RXPHY)
 498		sc->debug.stats.istats.rxphyerr++;
 499	if (status & ATH9K_INT_RXKCM)
 500		sc->debug.stats.istats.rx_keycache_miss++;
 501	if (status & ATH9K_INT_SWBA)
 502		sc->debug.stats.istats.swba++;
 503	if (status & ATH9K_INT_BMISS)
 504		sc->debug.stats.istats.bmiss++;
 505	if (status & ATH9K_INT_BNR)
 506		sc->debug.stats.istats.bnr++;
 507	if (status & ATH9K_INT_CST)
 508		sc->debug.stats.istats.cst++;
 509	if (status & ATH9K_INT_GTT)
 510		sc->debug.stats.istats.gtt++;
 511	if (status & ATH9K_INT_TIM)
 512		sc->debug.stats.istats.tim++;
 513	if (status & ATH9K_INT_CABEND)
 514		sc->debug.stats.istats.cabend++;
 515	if (status & ATH9K_INT_DTIMSYNC)
 516		sc->debug.stats.istats.dtimsync++;
 517	if (status & ATH9K_INT_DTIM)
 518		sc->debug.stats.istats.dtim++;
 519	if (status & ATH9K_INT_TSFOOR)
 520		sc->debug.stats.istats.tsfoor++;
 521	if (status & ATH9K_INT_MCI)
 522		sc->debug.stats.istats.mci++;
 523	if (status & ATH9K_INT_GENTIMER)
 524		sc->debug.stats.istats.gen_timer++;
 525}
 526
 527static int read_file_interrupt(struct seq_file *file, void *data)
 528{
 529	struct ieee80211_hw *hw = dev_get_drvdata(file->private);
 530	struct ath_softc *sc = hw->priv;
 531
 532#define PR_IS(a, s)						\
 533	do {							\
 534		seq_printf(file, "%21s: %10u\n", a,		\
 535			   sc->debug.stats.istats.s);		\
 536	} while (0)
 537
 538	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 539		PR_IS("RXLP", rxlp);
 540		PR_IS("RXHP", rxhp);
 541		PR_IS("WATHDOG", bb_watchdog);
 542	} else {
 543		PR_IS("RX", rxok);
 544	}
 545	PR_IS("RXEOL", rxeol);
 546	PR_IS("RXORN", rxorn);
 547	PR_IS("TX", txok);
 548	PR_IS("TXURN", txurn);
 549	PR_IS("MIB", mib);
 550	PR_IS("RXPHY", rxphyerr);
 551	PR_IS("RXKCM", rx_keycache_miss);
 552	PR_IS("SWBA", swba);
 553	PR_IS("BMISS", bmiss);
 554	PR_IS("BNR", bnr);
 555	PR_IS("CST", cst);
 556	PR_IS("GTT", gtt);
 557	PR_IS("TIM", tim);
 558	PR_IS("CABEND", cabend);
 559	PR_IS("DTIMSYNC", dtimsync);
 560	PR_IS("DTIM", dtim);
 561	PR_IS("TSFOOR", tsfoor);
 562	PR_IS("MCI", mci);
 563	PR_IS("GENTIMER", gen_timer);
 564	PR_IS("TOTAL", total);
 565
 566	seq_puts(file, "SYNC_CAUSE stats:\n");
 567
 568	PR_IS("Sync-All", sync_cause_all);
 569	PR_IS("RTC-IRQ", sync_rtc_irq);
 570	PR_IS("MAC-IRQ", sync_mac_irq);
 571	PR_IS("EEPROM-Illegal-Access", eeprom_illegal_access);
 572	PR_IS("APB-Timeout", apb_timeout);
 573	PR_IS("PCI-Mode-Conflict", pci_mode_conflict);
 574	PR_IS("HOST1-Fatal", host1_fatal);
 575	PR_IS("HOST1-Perr", host1_perr);
 576	PR_IS("TRCV-FIFO-Perr", trcv_fifo_perr);
 577	PR_IS("RADM-CPL-EP", radm_cpl_ep);
 578	PR_IS("RADM-CPL-DLLP-Abort", radm_cpl_dllp_abort);
 579	PR_IS("RADM-CPL-TLP-Abort", radm_cpl_tlp_abort);
 580	PR_IS("RADM-CPL-ECRC-Err", radm_cpl_ecrc_err);
 581	PR_IS("RADM-CPL-Timeout", radm_cpl_timeout);
 582	PR_IS("Local-Bus-Timeout", local_timeout);
 583	PR_IS("PM-Access", pm_access);
 584	PR_IS("MAC-Awake", mac_awake);
 585	PR_IS("MAC-Asleep", mac_asleep);
 586	PR_IS("MAC-Sleep-Access", mac_sleep_access);
 587
 588	return 0;
 589}
 590
 591static int read_file_xmit(struct seq_file *file, void *data)
 592{
 593	struct ieee80211_hw *hw = dev_get_drvdata(file->private);
 594	struct ath_softc *sc = hw->priv;
 595
 596	seq_printf(file, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
 597
 598	PR("MPDUs Queued:    ", queued);
 599	PR("MPDUs Completed: ", completed);
 600	PR("MPDUs XRetried:  ", xretries);
 601	PR("Aggregates:      ", a_aggr);
 602	PR("AMPDUs Queued HW:", a_queued_hw);
 603	PR("AMPDUs Completed:", a_completed);
 604	PR("AMPDUs Retried:  ", a_retries);
 605	PR("AMPDUs XRetried: ", a_xretries);
 606	PR("TXERR Filtered:  ", txerr_filtered);
 607	PR("FIFO Underrun:   ", fifo_underrun);
 608	PR("TXOP Exceeded:   ", xtxop);
 609	PR("TXTIMER Expiry:  ", timer_exp);
 610	PR("DESC CFG Error:  ", desc_cfg_err);
 611	PR("DATA Underrun:   ", data_underrun);
 612	PR("DELIM Underrun:  ", delim_underrun);
 613	PR("TX-Pkts-All:     ", tx_pkts_all);
 614	PR("TX-Bytes-All:    ", tx_bytes_all);
 615	PR("HW-put-tx-buf:   ", puttxbuf);
 616	PR("HW-tx-start:     ", txstart);
 617	PR("HW-tx-proc-desc: ", txprocdesc);
 618	PR("TX-Failed:       ", txfailed);
 619
 620	return 0;
 621}
 622
 623static void print_queue(struct ath_softc *sc, struct ath_txq *txq,
 624			struct seq_file *file)
 625{
 626	ath_txq_lock(sc, txq);
 627
 628	seq_printf(file, "%s: %d ", "qnum", txq->axq_qnum);
 629	seq_printf(file, "%s: %2d ", "qdepth", txq->axq_depth);
 630	seq_printf(file, "%s: %2d ", "ampdu-depth", txq->axq_ampdu_depth);
 631	seq_printf(file, "%s: %3d\n", "pending", txq->pending_frames);
 632
 633	ath_txq_unlock(sc, txq);
 634}
 635
 636static int read_file_queues(struct seq_file *file, void *data)
 637{
 638	struct ieee80211_hw *hw = dev_get_drvdata(file->private);
 639	struct ath_softc *sc = hw->priv;
 640	struct ath_txq *txq;
 641	int i;
 642	static const char *qname[4] = {
 643		"VO", "VI", "BE", "BK"
 644	};
 645
 646	for (i = 0; i < IEEE80211_NUM_ACS; i++) {
 647		txq = sc->tx.txq_map[i];
 648		seq_printf(file, "(%s):  ", qname[i]);
 649		print_queue(sc, txq, file);
 650	}
 651
 652	seq_puts(file, "(CAB): ");
 653	print_queue(sc, sc->beacon.cabq, file);
 654
 655	return 0;
 656}
 657
 658static int read_file_misc(struct seq_file *file, void *data)
 659{
 660	struct ieee80211_hw *hw = dev_get_drvdata(file->private);
 661	struct ath_softc *sc = hw->priv;
 662	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 663	struct ath9k_vif_iter_data iter_data;
 664	struct ath_chanctx *ctx;
 665	unsigned int reg;
 666	u32 rxfilter, i;
 667
 668	seq_printf(file, "BSSID: %pM\n", common->curbssid);
 669	seq_printf(file, "BSSID-MASK: %pM\n", common->bssidmask);
 670	seq_printf(file, "OPMODE: %s\n",
 671		   ath_opmode_to_string(sc->sc_ah->opmode));
 672
 673	ath9k_ps_wakeup(sc);
 674	rxfilter = ath9k_hw_getrxfilter(sc->sc_ah);
 675	ath9k_ps_restore(sc);
 676
 677	seq_printf(file, "RXFILTER: 0x%x", rxfilter);
 678
 679	if (rxfilter & ATH9K_RX_FILTER_UCAST)
 680		seq_puts(file, " UCAST");
 681	if (rxfilter & ATH9K_RX_FILTER_MCAST)
 682		seq_puts(file, " MCAST");
 683	if (rxfilter & ATH9K_RX_FILTER_BCAST)
 684		seq_puts(file, " BCAST");
 685	if (rxfilter & ATH9K_RX_FILTER_CONTROL)
 686		seq_puts(file, " CONTROL");
 687	if (rxfilter & ATH9K_RX_FILTER_BEACON)
 688		seq_puts(file, " BEACON");
 689	if (rxfilter & ATH9K_RX_FILTER_PROM)
 690		seq_puts(file, " PROM");
 691	if (rxfilter & ATH9K_RX_FILTER_PROBEREQ)
 692		seq_puts(file, " PROBEREQ");
 693	if (rxfilter & ATH9K_RX_FILTER_PHYERR)
 694		seq_puts(file, " PHYERR");
 695	if (rxfilter & ATH9K_RX_FILTER_MYBEACON)
 696		seq_puts(file, " MYBEACON");
 697	if (rxfilter & ATH9K_RX_FILTER_COMP_BAR)
 698		seq_puts(file, " COMP_BAR");
 699	if (rxfilter & ATH9K_RX_FILTER_PSPOLL)
 700		seq_puts(file, " PSPOLL");
 701	if (rxfilter & ATH9K_RX_FILTER_PHYRADAR)
 702		seq_puts(file, " PHYRADAR");
 703	if (rxfilter & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
 704		seq_puts(file, " MCAST_BCAST_ALL");
 705	if (rxfilter & ATH9K_RX_FILTER_CONTROL_WRAPPER)
 706		seq_puts(file, " CONTROL_WRAPPER");
 707
 708	seq_puts(file, "\n");
 709
 710	reg = sc->sc_ah->imask;
 711
 712	seq_printf(file, "INTERRUPT-MASK: 0x%x", reg);
 713
 714	if (reg & ATH9K_INT_SWBA)
 715		seq_puts(file, " SWBA");
 716	if (reg & ATH9K_INT_BMISS)
 717		seq_puts(file, " BMISS");
 718	if (reg & ATH9K_INT_CST)
 719		seq_puts(file, " CST");
 720	if (reg & ATH9K_INT_RX)
 721		seq_puts(file, " RX");
 722	if (reg & ATH9K_INT_RXHP)
 723		seq_puts(file, " RXHP");
 724	if (reg & ATH9K_INT_RXLP)
 725		seq_puts(file, " RXLP");
 726	if (reg & ATH9K_INT_BB_WATCHDOG)
 727		seq_puts(file, " BB_WATCHDOG");
 728
 729	seq_puts(file, "\n");
 730
 731	i = 0;
 732	ath_for_each_chanctx(sc, ctx) {
 733		if (list_empty(&ctx->vifs))
 734			continue;
 735		ath9k_calculate_iter_data(sc, ctx, &iter_data);
 736
 737		seq_printf(file,
 738			   "VIFS: CTX %i(%i) AP: %i STA: %i MESH: %i WDS: %i",
 739			   i++, (int)(ctx->assigned), iter_data.naps,
 740			   iter_data.nstations,
 741			   iter_data.nmeshes, iter_data.nwds);
 742		seq_printf(file, " ADHOC: %i OCB: %i TOTAL: %hi BEACON-VIF: %hi\n",
 743			   iter_data.nadhocs, iter_data.nocbs, sc->cur_chan->nvifs,
 744			   sc->nbcnvifs);
 745	}
 746
 747	return 0;
 748}
 749
 750static int read_file_reset(struct seq_file *file, void *data)
 751{
 752	struct ieee80211_hw *hw = dev_get_drvdata(file->private);
 753	struct ath_softc *sc = hw->priv;
 754	static const char * const reset_cause[__RESET_TYPE_MAX] = {
 
 755		[RESET_TYPE_BB_HANG] = "Baseband Hang",
 756		[RESET_TYPE_BB_WATCHDOG] = "Baseband Watchdog",
 757		[RESET_TYPE_FATAL_INT] = "Fatal HW Error",
 758		[RESET_TYPE_TX_ERROR] = "TX HW error",
 759		[RESET_TYPE_TX_GTT] = "Transmit timeout",
 760		[RESET_TYPE_TX_HANG] = "TX Path Hang",
 761		[RESET_TYPE_PLL_HANG] = "PLL RX Hang",
 762		[RESET_TYPE_MAC_HANG] = "MAC Hang",
 763		[RESET_TYPE_BEACON_STUCK] = "Stuck Beacon",
 764		[RESET_TYPE_MCI] = "MCI Reset",
 765		[RESET_TYPE_CALIBRATION] = "Calibration error",
 766		[RESET_TX_DMA_ERROR] = "Tx DMA stop error",
 767		[RESET_RX_DMA_ERROR] = "Rx DMA stop error",
 768	};
 769	int i;
 770
 771	for (i = 0; i < ARRAY_SIZE(reset_cause); i++) {
 772		if (!reset_cause[i])
 773		    continue;
 774
 775		seq_printf(file, "%17s: %2d\n", reset_cause[i],
 776			   sc->debug.stats.reset[i]);
 777	}
 778
 779	return 0;
 780}
 781
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 782void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 783		       struct ath_tx_status *ts, struct ath_txq *txq,
 784		       unsigned int flags)
 785{
 786	int qnum = txq->axq_qnum;
 787
 788	TX_STAT_INC(qnum, tx_pkts_all);
 789	sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
 790
 791	if (bf_isampdu(bf)) {
 792		if (flags & ATH_TX_ERROR)
 793			TX_STAT_INC(qnum, a_xretries);
 794		else
 795			TX_STAT_INC(qnum, a_completed);
 796	} else {
 797		if (ts->ts_status & ATH9K_TXERR_XRETRY)
 798			TX_STAT_INC(qnum, xretries);
 799		else
 800			TX_STAT_INC(qnum, completed);
 801	}
 802
 803	if (ts->ts_status & ATH9K_TXERR_FILT)
 804		TX_STAT_INC(qnum, txerr_filtered);
 805	if (ts->ts_status & ATH9K_TXERR_FIFO)
 806		TX_STAT_INC(qnum, fifo_underrun);
 807	if (ts->ts_status & ATH9K_TXERR_XTXOP)
 808		TX_STAT_INC(qnum, xtxop);
 809	if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
 810		TX_STAT_INC(qnum, timer_exp);
 811	if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
 812		TX_STAT_INC(qnum, desc_cfg_err);
 813	if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
 814		TX_STAT_INC(qnum, data_underrun);
 815	if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
 816		TX_STAT_INC(qnum, delim_underrun);
 817}
 818
 819void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
 820{
 821	ath9k_cmn_debug_stat_rx(&sc->debug.stats.rxstats, rs);
 822}
 823
 824static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
 825				size_t count, loff_t *ppos)
 826{
 827	struct ath_softc *sc = file->private_data;
 828	char buf[32];
 829	unsigned int len;
 830
 831	len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
 832	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 833}
 834
 835static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
 836				 size_t count, loff_t *ppos)
 837{
 838	struct ath_softc *sc = file->private_data;
 839	unsigned long regidx;
 840	char buf[32];
 841	ssize_t len;
 842
 843	len = min(count, sizeof(buf) - 1);
 844	if (copy_from_user(buf, user_buf, len))
 845		return -EFAULT;
 846
 847	buf[len] = '\0';
 848	if (kstrtoul(buf, 0, &regidx))
 849		return -EINVAL;
 850
 851	sc->debug.regidx = regidx;
 852	return count;
 853}
 854
 855static const struct file_operations fops_regidx = {
 856	.read = read_file_regidx,
 857	.write = write_file_regidx,
 858	.open = simple_open,
 859	.owner = THIS_MODULE,
 860	.llseek = default_llseek,
 861};
 862
 863static ssize_t read_file_regval(struct file *file, char __user *user_buf,
 864				size_t count, loff_t *ppos)
 865{
 866	struct ath_softc *sc = file->private_data;
 867	struct ath_hw *ah = sc->sc_ah;
 868	char buf[32];
 869	unsigned int len;
 870	u32 regval;
 871
 872	ath9k_ps_wakeup(sc);
 873	regval = REG_READ_D(ah, sc->debug.regidx);
 874	ath9k_ps_restore(sc);
 875	len = sprintf(buf, "0x%08x\n", regval);
 876	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 877}
 878
 879static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
 880				 size_t count, loff_t *ppos)
 881{
 882	struct ath_softc *sc = file->private_data;
 883	struct ath_hw *ah = sc->sc_ah;
 884	unsigned long regval;
 885	char buf[32];
 886	ssize_t len;
 887
 888	len = min(count, sizeof(buf) - 1);
 889	if (copy_from_user(buf, user_buf, len))
 890		return -EFAULT;
 891
 892	buf[len] = '\0';
 893	if (kstrtoul(buf, 0, &regval))
 894		return -EINVAL;
 895
 896	ath9k_ps_wakeup(sc);
 897	REG_WRITE_D(ah, sc->debug.regidx, regval);
 898	ath9k_ps_restore(sc);
 899	return count;
 900}
 901
 902static const struct file_operations fops_regval = {
 903	.read = read_file_regval,
 904	.write = write_file_regval,
 905	.open = simple_open,
 906	.owner = THIS_MODULE,
 907	.llseek = default_llseek,
 908};
 909
 910#define REGDUMP_LINE_SIZE	20
 911
 912static int open_file_regdump(struct inode *inode, struct file *file)
 913{
 914	struct ath_softc *sc = inode->i_private;
 915	unsigned int len = 0;
 916	u8 *buf;
 917	int i, j = 0;
 918	unsigned long num_regs, regdump_len, max_reg_offset;
 919	static const struct reg_hole {
 920		u32 start;
 921		u32 end;
 922	} reg_hole_list[] = {
 923		{0x0200, 0x07fc},
 924		{0x0c00, 0x0ffc},
 925		{0x2000, 0x3ffc},
 926		{0x4100, 0x6ffc},
 927		{0x705c, 0x7ffc},
 928		{0x0000, 0x0000}
 929	};
 930
 931	max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x8800 : 0xb500;
 932	num_regs = max_reg_offset / 4 + 1;
 933	regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
 934	buf = vmalloc(regdump_len);
 935	if (!buf)
 936		return -ENOMEM;
 937
 938	ath9k_ps_wakeup(sc);
 939	for (i = 0; i < num_regs; i++) {
 940		if (reg_hole_list[j].start == i << 2) {
 941			i = reg_hole_list[j].end >> 2;
 942			j++;
 943			continue;
 944		}
 945
 946		len += scnprintf(buf + len, regdump_len - len,
 947			"0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
 948	}
 949	ath9k_ps_restore(sc);
 950
 951	file->private_data = buf;
 952
 953	return 0;
 954}
 955
 956static const struct file_operations fops_regdump = {
 957	.open = open_file_regdump,
 958	.read = ath9k_debugfs_read_buf,
 959	.release = ath9k_debugfs_release_buf,
 960	.owner = THIS_MODULE,
 961	.llseek = default_llseek,/* read accesses f_pos */
 962};
 963
 964static int read_file_dump_nfcal(struct seq_file *file, void *data)
 965{
 966	struct ieee80211_hw *hw = dev_get_drvdata(file->private);
 967	struct ath_softc *sc = hw->priv;
 968	struct ath_hw *ah = sc->sc_ah;
 969	struct ath9k_nfcal_hist *h = sc->cur_chan->caldata.nfCalHist;
 970	struct ath_common *common = ath9k_hw_common(ah);
 971	struct ieee80211_conf *conf = &common->hw->conf;
 972	u32 i, j;
 973	u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
 974	u8 nread;
 975
 976	seq_printf(file, "Channel Noise Floor : %d\n", ah->noise);
 977	seq_puts(file, "Chain | privNF | # Readings | NF Readings\n");
 978	for (i = 0; i < NUM_NF_READINGS; i++) {
 979		if (!(chainmask & (1 << i)) ||
 980		    ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
 981			continue;
 982
 983		nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount;
 984		seq_printf(file, " %d\t %d\t %d\t\t", i, h[i].privNF, nread);
 985		for (j = 0; j < nread; j++)
 986			seq_printf(file, " %d", h[i].nfCalBuffer[j]);
 987		seq_puts(file, "\n");
 988	}
 989
 990	return 0;
 991}
 992
 993static int open_file_dump_nfcal(struct inode *inode, struct file *f)
 994{
 995	return single_open(f, read_file_dump_nfcal, inode->i_private);
 996}
 997
 998static const struct file_operations fops_dump_nfcal = {
 999	.read = seq_read,
1000	.open = open_file_dump_nfcal,
1001	.owner = THIS_MODULE,
1002	.llseek = seq_lseek,
1003	.release = single_release,
1004};
1005
1006#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1007static ssize_t read_file_btcoex(struct file *file, char __user *user_buf,
1008				size_t count, loff_t *ppos)
1009{
1010	struct ath_softc *sc = file->private_data;
1011	u32 len = 0, size = 1500;
1012	char *buf;
1013	size_t retval;
1014
1015	buf = kzalloc(size, GFP_KERNEL);
1016	if (buf == NULL)
1017		return -ENOMEM;
1018
1019	if (!sc->sc_ah->common.btcoex_enabled) {
1020		len = scnprintf(buf, size, "%s\n",
1021				"BTCOEX is disabled");
1022		goto exit;
1023	}
1024
1025	len = ath9k_dump_btcoex(sc, buf, size);
1026exit:
1027	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1028	kfree(buf);
1029
1030	return retval;
1031}
1032
1033static const struct file_operations fops_btcoex = {
1034	.read = read_file_btcoex,
1035	.open = simple_open,
1036	.owner = THIS_MODULE,
1037	.llseek = default_llseek,
1038};
1039#endif
1040
1041#ifdef CONFIG_ATH9K_DYNACK
1042static ssize_t read_file_ackto(struct file *file, char __user *user_buf,
1043			       size_t count, loff_t *ppos)
1044{
1045	struct ath_softc *sc = file->private_data;
1046	struct ath_hw *ah = sc->sc_ah;
1047	char buf[32];
1048	unsigned int len;
1049
1050	len = sprintf(buf, "%u %c\n", ah->dynack.ackto,
1051		      (ah->dynack.enabled) ? 'A' : 'S');
1052
1053	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1054}
1055
1056static const struct file_operations fops_ackto = {
1057	.read = read_file_ackto,
1058	.open = simple_open,
1059	.owner = THIS_MODULE,
1060	.llseek = default_llseek,
1061};
1062#endif
1063
1064#ifdef CONFIG_ATH9K_WOW
1065
1066static ssize_t read_file_wow(struct file *file, char __user *user_buf,
1067			     size_t count, loff_t *ppos)
1068{
1069	struct ath_softc *sc = file->private_data;
1070	unsigned int len = 0, size = 32;
1071	ssize_t retval;
1072	char *buf;
1073
1074	buf = kzalloc(size, GFP_KERNEL);
1075	if (!buf)
1076		return -ENOMEM;
1077
1078	len += scnprintf(buf + len, size - len, "WOW: %s\n",
1079			 sc->force_wow ? "ENABLED" : "DISABLED");
1080
1081	if (len > size)
1082		len = size;
1083
1084	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1085	kfree(buf);
1086
1087	return retval;
1088}
1089
1090static ssize_t write_file_wow(struct file *file, const char __user *user_buf,
1091			      size_t count, loff_t *ppos)
1092{
1093	struct ath_softc *sc = file->private_data;
1094	unsigned long val;
1095	char buf[32];
1096	ssize_t len;
1097
1098	len = min(count, sizeof(buf) - 1);
1099	if (copy_from_user(buf, user_buf, len))
1100		return -EFAULT;
1101
1102	buf[len] = '\0';
1103	if (kstrtoul(buf, 0, &val))
1104		return -EINVAL;
1105
1106	if (val != 1)
1107		return -EINVAL;
1108
1109	if (!sc->force_wow) {
1110		sc->force_wow = true;
1111		ath9k_init_wow(sc->hw);
1112	}
1113
1114	return count;
1115}
1116
1117static const struct file_operations fops_wow = {
1118	.read = read_file_wow,
1119	.write = write_file_wow,
1120	.open = simple_open,
1121	.owner = THIS_MODULE,
1122	.llseek = default_llseek,
1123};
1124
1125#endif
1126
1127static ssize_t read_file_tpc(struct file *file, char __user *user_buf,
1128			     size_t count, loff_t *ppos)
1129{
1130	struct ath_softc *sc = file->private_data;
1131	struct ath_hw *ah = sc->sc_ah;
1132	unsigned int len = 0, size = 32;
1133	ssize_t retval;
1134	char *buf;
1135
1136	buf = kzalloc(size, GFP_KERNEL);
1137	if (!buf)
1138		return -ENOMEM;
1139
1140	len += scnprintf(buf + len, size - len, "%s\n",
1141			 ah->tpc_enabled ? "ENABLED" : "DISABLED");
1142
1143	if (len > size)
1144		len = size;
1145
1146	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1147	kfree(buf);
1148
1149	return retval;
1150}
1151
1152static ssize_t write_file_tpc(struct file *file, const char __user *user_buf,
1153			      size_t count, loff_t *ppos)
1154{
1155	struct ath_softc *sc = file->private_data;
1156	struct ath_hw *ah = sc->sc_ah;
1157	unsigned long val;
1158	char buf[32];
1159	ssize_t len;
1160	bool tpc_enabled;
1161
1162	len = min(count, sizeof(buf) - 1);
1163	if (copy_from_user(buf, user_buf, len))
1164		return -EFAULT;
1165
1166	buf[len] = '\0';
1167	if (kstrtoul(buf, 0, &val))
1168		return -EINVAL;
1169
1170	if (val > 1)
1171		return -EINVAL;
1172
1173	tpc_enabled = !!val;
1174
1175	if (tpc_enabled != ah->tpc_enabled) {
1176		ah->tpc_enabled = tpc_enabled;
1177
1178		mutex_lock(&sc->mutex);
1179		ath9k_set_txpower(sc, NULL);
1180		mutex_unlock(&sc->mutex);
1181	}
1182
1183	return count;
1184}
1185
1186static const struct file_operations fops_tpc = {
1187	.read = read_file_tpc,
1188	.write = write_file_tpc,
1189	.open = simple_open,
1190	.owner = THIS_MODULE,
1191	.llseek = default_llseek,
1192};
1193
1194static ssize_t read_file_nf_override(struct file *file,
1195				     char __user *user_buf,
1196				     size_t count, loff_t *ppos)
1197{
1198	struct ath_softc *sc = file->private_data;
1199	struct ath_hw *ah = sc->sc_ah;
1200	char buf[32];
1201	unsigned int len;
1202
1203	if (ah->nf_override == 0)
1204		len = sprintf(buf, "off\n");
1205	else
1206		len = sprintf(buf, "%d\n", ah->nf_override);
1207
1208	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1209}
1210
1211static ssize_t write_file_nf_override(struct file *file,
1212				      const char __user *user_buf,
1213				      size_t count, loff_t *ppos)
1214{
1215	struct ath_softc *sc = file->private_data;
1216	struct ath_hw *ah = sc->sc_ah;
1217	long val;
1218	char buf[32];
1219	ssize_t len;
1220
1221	len = min(count, sizeof(buf) - 1);
1222	if (copy_from_user(buf, user_buf, len))
1223		return -EFAULT;
1224
1225	buf[len] = '\0';
1226	if (strncmp("off", buf, 3) == 0)
1227		val = 0;
1228	else if (kstrtol(buf, 0, &val))
1229		return -EINVAL;
1230
1231	if (val > 0)
1232		return -EINVAL;
1233
1234	if (val < -120)
1235		return -EINVAL;
1236
1237	ah->nf_override = val;
1238
1239	if (ah->curchan)
 
1240		ath9k_hw_loadnf(ah, ah->curchan);
 
 
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++] = (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++] = (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 = (struct ath_softc *) common->priv;
1381
1382	sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
1383						   sc->hw->wiphy->debugfsdir);
1384	if (!sc->debug.debugfs_phy)
1385		return -ENOMEM;
1386
1387#ifdef CONFIG_ATH_DEBUG
1388	debugfs_create_file("debug", 0600, sc->debug.debugfs_phy,
1389			    sc, &fops_debug);
1390#endif
1391
1392	ath9k_dfs_init_debug(sc);
1393	ath9k_tx99_init_debug(sc);
1394	ath9k_cmn_spectral_init_debug(&sc->spec_priv, sc->debug.debugfs_phy);
1395
1396	debugfs_create_devm_seqfile(sc->dev, "dma", sc->debug.debugfs_phy,
1397				    read_file_dma);
1398	debugfs_create_devm_seqfile(sc->dev, "interrupt", sc->debug.debugfs_phy,
1399				    read_file_interrupt);
1400	debugfs_create_devm_seqfile(sc->dev, "xmit", sc->debug.debugfs_phy,
1401				    read_file_xmit);
1402	debugfs_create_devm_seqfile(sc->dev, "queues", sc->debug.debugfs_phy,
1403				    read_file_queues);
1404	debugfs_create_devm_seqfile(sc->dev, "misc", sc->debug.debugfs_phy,
1405				    read_file_misc);
1406	debugfs_create_devm_seqfile(sc->dev, "reset", sc->debug.debugfs_phy,
1407				    read_file_reset);
1408
1409	ath9k_cmn_debug_recv(sc->debug.debugfs_phy, &sc->debug.stats.rxstats);
1410	ath9k_cmn_debug_phy_err(sc->debug.debugfs_phy, &sc->debug.stats.rxstats);
1411
1412	debugfs_create_u8("rx_chainmask", 0400, sc->debug.debugfs_phy,
1413			  &ah->rxchainmask);
1414	debugfs_create_u8("tx_chainmask", 0400, sc->debug.debugfs_phy,
1415			  &ah->txchainmask);
1416	debugfs_create_file("ani", 0600,
1417			    sc->debug.debugfs_phy, sc, &fops_ani);
1418	debugfs_create_bool("paprd", 0600, sc->debug.debugfs_phy,
1419			    &sc->sc_ah->config.enable_paprd);
1420	debugfs_create_file("regidx", 0600, sc->debug.debugfs_phy,
1421			    sc, &fops_regidx);
1422	debugfs_create_file("regval", 0600, sc->debug.debugfs_phy,
1423			    sc, &fops_regval);
1424	debugfs_create_bool("ignore_extcca", 0600,
1425			    sc->debug.debugfs_phy,
1426			    &ah->config.cwm_ignore_extcca);
1427	debugfs_create_file("regdump", 0400, sc->debug.debugfs_phy, sc,
1428			    &fops_regdump);
1429	debugfs_create_devm_seqfile(sc->dev, "dump_nfcal",
1430				    sc->debug.debugfs_phy,
1431				    read_file_dump_nfcal);
1432
1433	ath9k_cmn_debug_base_eeprom(sc->debug.debugfs_phy, sc->sc_ah);
1434	ath9k_cmn_debug_modal_eeprom(sc->debug.debugfs_phy, sc->sc_ah);
1435
1436	debugfs_create_u32("gpio_mask", 0600,
1437			   sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
1438	debugfs_create_u32("gpio_val", 0600,
1439			   sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
1440	debugfs_create_file("antenna_diversity", 0400,
1441			    sc->debug.debugfs_phy, sc, &fops_antenna_diversity);
1442#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1443	debugfs_create_file("bt_ant_diversity", 0600,
1444			    sc->debug.debugfs_phy, sc, &fops_bt_ant_diversity);
1445	debugfs_create_file("btcoex", 0400, sc->debug.debugfs_phy, sc,
1446			    &fops_btcoex);
1447#endif
1448
1449#ifdef CONFIG_ATH9K_WOW
1450	debugfs_create_file("wow", 0600, sc->debug.debugfs_phy, sc, &fops_wow);
1451#endif
1452
1453#ifdef CONFIG_ATH9K_DYNACK
1454	debugfs_create_file("ack_to", 0400, sc->debug.debugfs_phy,
1455			    sc, &fops_ackto);
1456#endif
1457	debugfs_create_file("tpc", 0600, sc->debug.debugfs_phy, sc, &fops_tpc);
1458
1459	debugfs_create_u16("airtime_flags", 0600,
1460			   sc->debug.debugfs_phy, &sc->airtime_flags);
1461
1462	debugfs_create_file("nf_override", 0600,
1463			    sc->debug.debugfs_phy, sc, &fops_nf_override);
1464
1465	return 0;
1466}