linux/drivers/net/wireless/ath/ath9k/debug.c
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   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_spurdown },
 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("WATCHDOG", 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(sc, 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(sc, qnum, a_xretries);
 794                else
 795                        TX_STAT_INC(sc, qnum, a_completed);
 796        } else {
 797                if (ts->ts_status & ATH9K_TXERR_XRETRY)
 798                        TX_STAT_INC(sc, qnum, xretries);
 799                else
 800                        TX_STAT_INC(sc, qnum, completed);
 801        }
 802
 803        if (ts->ts_status & ATH9K_TXERR_FILT)
 804                TX_STAT_INC(sc, qnum, txerr_filtered);
 805        if (ts->ts_status & ATH9K_TXERR_FIFO)
 806                TX_STAT_INC(sc, qnum, fifo_underrun);
 807        if (ts->ts_status & ATH9K_TXERR_XTXOP)
 808                TX_STAT_INC(sc, qnum, xtxop);
 809        if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
 810                TX_STAT_INC(sc, qnum, timer_exp);
 811        if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
 812                TX_STAT_INC(sc, qnum, desc_cfg_err);
 813        if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
 814                TX_STAT_INC(sc, qnum, data_underrun);
 815        if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
 816                TX_STAT_INC(sc, 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
 993#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 994static ssize_t read_file_btcoex(struct file *file, char __user *user_buf,
 995                                size_t count, loff_t *ppos)
 996{
 997        struct ath_softc *sc = file->private_data;
 998        u32 len = 0, size = 1500;
 999        char *buf;
1000        size_t retval;
1001
1002        buf = kzalloc(size, GFP_KERNEL);
1003        if (buf == NULL)
1004                return -ENOMEM;
1005
1006        if (!sc->sc_ah->common.btcoex_enabled) {
1007                len = scnprintf(buf, size, "%s\n",
1008                                "BTCOEX is disabled");
1009                goto exit;
1010        }
1011
1012        len = ath9k_dump_btcoex(sc, buf, size);
1013exit:
1014        retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1015        kfree(buf);
1016
1017        return retval;
1018}
1019
1020static const struct file_operations fops_btcoex = {
1021        .read = read_file_btcoex,
1022        .open = simple_open,
1023        .owner = THIS_MODULE,
1024        .llseek = default_llseek,
1025};
1026#endif
1027
1028#ifdef CONFIG_ATH9K_DYNACK
1029static ssize_t read_file_ackto(struct file *file, char __user *user_buf,
1030                               size_t count, loff_t *ppos)
1031{
1032        struct ath_softc *sc = file->private_data;
1033        struct ath_hw *ah = sc->sc_ah;
1034        char buf[32];
1035        unsigned int len;
1036
1037        len = sprintf(buf, "%u %c\n", ah->dynack.ackto,
1038                      (ah->dynack.enabled) ? 'A' : 'S');
1039
1040        return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1041}
1042
1043static const struct file_operations fops_ackto = {
1044        .read = read_file_ackto,
1045        .open = simple_open,
1046        .owner = THIS_MODULE,
1047        .llseek = default_llseek,
1048};
1049#endif
1050
1051#ifdef CONFIG_ATH9K_WOW
1052
1053static ssize_t read_file_wow(struct file *file, char __user *user_buf,
1054                             size_t count, loff_t *ppos)
1055{
1056        struct ath_softc *sc = file->private_data;
1057        unsigned int len = 0, size = 32;
1058        ssize_t retval;
1059        char *buf;
1060
1061        buf = kzalloc(size, GFP_KERNEL);
1062        if (!buf)
1063                return -ENOMEM;
1064
1065        len += scnprintf(buf + len, size - len, "WOW: %s\n",
1066                         sc->force_wow ? "ENABLED" : "DISABLED");
1067
1068        if (len > size)
1069                len = size;
1070
1071        retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1072        kfree(buf);
1073
1074        return retval;
1075}
1076
1077static ssize_t write_file_wow(struct file *file, const char __user *user_buf,
1078                              size_t count, loff_t *ppos)
1079{
1080        struct ath_softc *sc = file->private_data;
1081        unsigned long val;
1082        char buf[32];
1083        ssize_t len;
1084
1085        len = min(count, sizeof(buf) - 1);
1086        if (copy_from_user(buf, user_buf, len))
1087                return -EFAULT;
1088
1089        buf[len] = '\0';
1090        if (kstrtoul(buf, 0, &val))
1091                return -EINVAL;
1092
1093        if (val != 1)
1094                return -EINVAL;
1095
1096        if (!sc->force_wow) {
1097                sc->force_wow = true;
1098                ath9k_init_wow(sc->hw);
1099        }
1100
1101        return count;
1102}
1103
1104static const struct file_operations fops_wow = {
1105        .read = read_file_wow,
1106        .write = write_file_wow,
1107        .open = simple_open,
1108        .owner = THIS_MODULE,
1109        .llseek = default_llseek,
1110};
1111
1112#endif
1113
1114static ssize_t read_file_tpc(struct file *file, char __user *user_buf,
1115                             size_t count, loff_t *ppos)
1116{
1117        struct ath_softc *sc = file->private_data;
1118        struct ath_hw *ah = sc->sc_ah;
1119        unsigned int len = 0, size = 32;
1120        ssize_t retval;
1121        char *buf;
1122
1123        buf = kzalloc(size, GFP_KERNEL);
1124        if (!buf)
1125                return -ENOMEM;
1126
1127        len += scnprintf(buf + len, size - len, "%s\n",
1128                         ah->tpc_enabled ? "ENABLED" : "DISABLED");
1129
1130        if (len > size)
1131                len = size;
1132
1133        retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1134        kfree(buf);
1135
1136        return retval;
1137}
1138
1139static ssize_t write_file_tpc(struct file *file, const char __user *user_buf,
1140                              size_t count, loff_t *ppos)
1141{
1142        struct ath_softc *sc = file->private_data;
1143        struct ath_hw *ah = sc->sc_ah;
1144        unsigned long val;
1145        char buf[32];
1146        ssize_t len;
1147        bool tpc_enabled;
1148
1149        len = min(count, sizeof(buf) - 1);
1150        if (copy_from_user(buf, user_buf, len))
1151                return -EFAULT;
1152
1153        buf[len] = '\0';
1154        if (kstrtoul(buf, 0, &val))
1155                return -EINVAL;
1156
1157        if (val > 1)
1158                return -EINVAL;
1159
1160        tpc_enabled = !!val;
1161
1162        if (tpc_enabled != ah->tpc_enabled) {
1163                ah->tpc_enabled = tpc_enabled;
1164
1165                mutex_lock(&sc->mutex);
1166                ath9k_set_txpower(sc, NULL);
1167                mutex_unlock(&sc->mutex);
1168        }
1169
1170        return count;
1171}
1172
1173static const struct file_operations fops_tpc = {
1174        .read = read_file_tpc,
1175        .write = write_file_tpc,
1176        .open = simple_open,
1177        .owner = THIS_MODULE,
1178        .llseek = default_llseek,
1179};
1180
1181static ssize_t read_file_nf_override(struct file *file,
1182                                     char __user *user_buf,
1183                                     size_t count, loff_t *ppos)
1184{
1185        struct ath_softc *sc = file->private_data;
1186        struct ath_hw *ah = sc->sc_ah;
1187        char buf[32];
1188        unsigned int len;
1189
1190        if (ah->nf_override == 0)
1191                len = sprintf(buf, "off\n");
1192        else
1193                len = sprintf(buf, "%d\n", ah->nf_override);
1194
1195        return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1196}
1197
1198static ssize_t write_file_nf_override(struct file *file,
1199                                      const char __user *user_buf,
1200                                      size_t count, loff_t *ppos)
1201{
1202        struct ath_softc *sc = file->private_data;
1203        struct ath_hw *ah = sc->sc_ah;
1204        long val;
1205        char buf[32];
1206        ssize_t len;
1207
1208        len = min(count, sizeof(buf) - 1);
1209        if (copy_from_user(buf, user_buf, len))
1210                return -EFAULT;
1211
1212        buf[len] = '\0';
1213        if (strncmp("off", buf, 3) == 0)
1214                val = 0;
1215        else if (kstrtol(buf, 0, &val))
1216                return -EINVAL;
1217
1218        if (val > 0)
1219                return -EINVAL;
1220
1221        if (val < -120)
1222                return -EINVAL;
1223
1224        ah->nf_override = val;
1225
1226        if (ah->curchan)
1227                ath9k_hw_loadnf(ah, ah->curchan);
1228
1229        return count;
1230}
1231
1232static const struct file_operations fops_nf_override = {
1233        .read = read_file_nf_override,
1234        .write = write_file_nf_override,
1235        .open = simple_open,
1236        .owner = THIS_MODULE,
1237        .llseek = default_llseek,
1238};
1239
1240/* Ethtool support for get-stats */
1241
1242#define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
1243static const char ath9k_gstrings_stats[][ETH_GSTRING_LEN] = {
1244        "tx_pkts_nic",
1245        "tx_bytes_nic",
1246        "rx_pkts_nic",
1247        "rx_bytes_nic",
1248        AMKSTR(d_tx_pkts),
1249        AMKSTR(d_tx_bytes),
1250        AMKSTR(d_tx_mpdus_queued),
1251        AMKSTR(d_tx_mpdus_completed),
1252        AMKSTR(d_tx_mpdu_xretries),
1253        AMKSTR(d_tx_aggregates),
1254        AMKSTR(d_tx_ampdus_queued_hw),
1255        AMKSTR(d_tx_ampdus_completed),
1256        AMKSTR(d_tx_ampdu_retries),
1257        AMKSTR(d_tx_ampdu_xretries),
1258        AMKSTR(d_tx_fifo_underrun),
1259        AMKSTR(d_tx_op_exceeded),
1260        AMKSTR(d_tx_timer_expiry),
1261        AMKSTR(d_tx_desc_cfg_err),
1262        AMKSTR(d_tx_data_underrun),
1263        AMKSTR(d_tx_delim_underrun),
1264        "d_rx_crc_err",
1265        "d_rx_decrypt_crc_err",
1266        "d_rx_phy_err",
1267        "d_rx_mic_err",
1268        "d_rx_pre_delim_crc_err",
1269        "d_rx_post_delim_crc_err",
1270        "d_rx_decrypt_busy_err",
1271
1272        "d_rx_phyerr_radar",
1273        "d_rx_phyerr_ofdm_timing",
1274        "d_rx_phyerr_cck_timing",
1275
1276};
1277#define ATH9K_SSTATS_LEN ARRAY_SIZE(ath9k_gstrings_stats)
1278
1279void ath9k_get_et_strings(struct ieee80211_hw *hw,
1280                          struct ieee80211_vif *vif,
1281                          u32 sset, u8 *data)
1282{
1283        if (sset == ETH_SS_STATS)
1284                memcpy(data, *ath9k_gstrings_stats,
1285                       sizeof(ath9k_gstrings_stats));
1286}
1287
1288int ath9k_get_et_sset_count(struct ieee80211_hw *hw,
1289                            struct ieee80211_vif *vif, int sset)
1290{
1291        if (sset == ETH_SS_STATS)
1292                return ATH9K_SSTATS_LEN;
1293        return 0;
1294}
1295
1296#define AWDATA(elem)                                                    \
1297        do {                                                            \
1298                data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].elem; \
1299                data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].elem; \
1300                data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].elem; \
1301                data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].elem; \
1302        } while (0)
1303
1304#define AWDATA_RX(elem)                                         \
1305        do {                                                    \
1306                data[i++] = sc->debug.stats.rxstats.elem;       \
1307        } while (0)
1308
1309void ath9k_get_et_stats(struct ieee80211_hw *hw,
1310                        struct ieee80211_vif *vif,
1311                        struct ethtool_stats *stats, u64 *data)
1312{
1313        struct ath_softc *sc = hw->priv;
1314        int i = 0;
1315
1316        data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_pkts_all +
1317                     sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_pkts_all +
1318                     sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_pkts_all +
1319                     sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_pkts_all);
1320        data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_bytes_all +
1321                     sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_bytes_all +
1322                     sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_bytes_all +
1323                     sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_bytes_all);
1324        AWDATA_RX(rx_pkts_all);
1325        AWDATA_RX(rx_bytes_all);
1326
1327        AWDATA(tx_pkts_all);
1328        AWDATA(tx_bytes_all);
1329        AWDATA(queued);
1330        AWDATA(completed);
1331        AWDATA(xretries);
1332        AWDATA(a_aggr);
1333        AWDATA(a_queued_hw);
1334        AWDATA(a_completed);
1335        AWDATA(a_retries);
1336        AWDATA(a_xretries);
1337        AWDATA(fifo_underrun);
1338        AWDATA(xtxop);
1339        AWDATA(timer_exp);
1340        AWDATA(desc_cfg_err);
1341        AWDATA(data_underrun);
1342        AWDATA(delim_underrun);
1343
1344        AWDATA_RX(crc_err);
1345        AWDATA_RX(decrypt_crc_err);
1346        AWDATA_RX(phy_err);
1347        AWDATA_RX(mic_err);
1348        AWDATA_RX(pre_delim_crc_err);
1349        AWDATA_RX(post_delim_crc_err);
1350        AWDATA_RX(decrypt_busy_err);
1351
1352        AWDATA_RX(phy_err_stats[ATH9K_PHYERR_RADAR]);
1353        AWDATA_RX(phy_err_stats[ATH9K_PHYERR_OFDM_TIMING]);
1354        AWDATA_RX(phy_err_stats[ATH9K_PHYERR_CCK_TIMING]);
1355
1356        WARN_ON(i != ATH9K_SSTATS_LEN);
1357}
1358
1359void ath9k_deinit_debug(struct ath_softc *sc)
1360{
1361        ath9k_cmn_spectral_deinit_debug(&sc->spec_priv);
1362}
1363
1364int ath9k_init_debug(struct ath_hw *ah)
1365{
1366        struct ath_common *common = ath9k_hw_common(ah);
1367        struct ath_softc *sc = (struct ath_softc *) common->priv;
1368
1369        sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
1370                                                   sc->hw->wiphy->debugfsdir);
1371        if (!sc->debug.debugfs_phy)
1372                return -ENOMEM;
1373
1374#ifdef CONFIG_ATH_DEBUG
1375        debugfs_create_file("debug", 0600, sc->debug.debugfs_phy,
1376                            sc, &fops_debug);
1377#endif
1378
1379        ath9k_dfs_init_debug(sc);
1380        ath9k_tx99_init_debug(sc);
1381        ath9k_cmn_spectral_init_debug(&sc->spec_priv, sc->debug.debugfs_phy);
1382
1383        debugfs_create_devm_seqfile(sc->dev, "dma", sc->debug.debugfs_phy,
1384                                    read_file_dma);
1385        debugfs_create_devm_seqfile(sc->dev, "interrupt", sc->debug.debugfs_phy,
1386                                    read_file_interrupt);
1387        debugfs_create_devm_seqfile(sc->dev, "xmit", sc->debug.debugfs_phy,
1388                                    read_file_xmit);
1389        debugfs_create_devm_seqfile(sc->dev, "queues", sc->debug.debugfs_phy,
1390                                    read_file_queues);
1391        debugfs_create_devm_seqfile(sc->dev, "misc", sc->debug.debugfs_phy,
1392                                    read_file_misc);
1393        debugfs_create_devm_seqfile(sc->dev, "reset", sc->debug.debugfs_phy,
1394                                    read_file_reset);
1395
1396        ath9k_cmn_debug_recv(sc->debug.debugfs_phy, &sc->debug.stats.rxstats);
1397        ath9k_cmn_debug_phy_err(sc->debug.debugfs_phy, &sc->debug.stats.rxstats);
1398
1399        debugfs_create_u8("rx_chainmask", 0400, sc->debug.debugfs_phy,
1400                          &ah->rxchainmask);
1401        debugfs_create_u8("tx_chainmask", 0400, sc->debug.debugfs_phy,
1402                          &ah->txchainmask);
1403        debugfs_create_file("ani", 0600,
1404                            sc->debug.debugfs_phy, sc, &fops_ani);
1405        debugfs_create_bool("paprd", 0600, sc->debug.debugfs_phy,
1406                            &sc->sc_ah->config.enable_paprd);
1407        debugfs_create_file("regidx", 0600, sc->debug.debugfs_phy,
1408                            sc, &fops_regidx);
1409        debugfs_create_file("regval", 0600, sc->debug.debugfs_phy,
1410                            sc, &fops_regval);
1411        debugfs_create_bool("ignore_extcca", 0600,
1412                            sc->debug.debugfs_phy,
1413                            &ah->config.cwm_ignore_extcca);
1414        debugfs_create_file("regdump", 0400, sc->debug.debugfs_phy, sc,
1415                            &fops_regdump);
1416        debugfs_create_devm_seqfile(sc->dev, "dump_nfcal",
1417                                    sc->debug.debugfs_phy,
1418                                    read_file_dump_nfcal);
1419
1420        ath9k_cmn_debug_base_eeprom(sc->debug.debugfs_phy, sc->sc_ah);
1421        ath9k_cmn_debug_modal_eeprom(sc->debug.debugfs_phy, sc->sc_ah);
1422
1423        debugfs_create_u32("gpio_mask", 0600,
1424                           sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
1425        debugfs_create_u32("gpio_val", 0600,
1426                           sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
1427        debugfs_create_file("antenna_diversity", 0400,
1428                            sc->debug.debugfs_phy, sc, &fops_antenna_diversity);
1429#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1430        debugfs_create_file("bt_ant_diversity", 0600,
1431                            sc->debug.debugfs_phy, sc, &fops_bt_ant_diversity);
1432        debugfs_create_file("btcoex", 0400, sc->debug.debugfs_phy, sc,
1433                            &fops_btcoex);
1434#endif
1435
1436#ifdef CONFIG_ATH9K_WOW
1437        debugfs_create_file("wow", 0600, sc->debug.debugfs_phy, sc, &fops_wow);
1438#endif
1439
1440#ifdef CONFIG_ATH9K_DYNACK
1441        debugfs_create_file("ack_to", 0400, sc->debug.debugfs_phy,
1442                            sc, &fops_ackto);
1443#endif
1444        debugfs_create_file("tpc", 0600, sc->debug.debugfs_phy, sc, &fops_tpc);
1445
1446        debugfs_create_file("nf_override", 0600,
1447                            sc->debug.debugfs_phy, sc, &fops_nf_override);
1448
1449        return 0;
1450}
1451