drivers/net/wireless/ath/ath9k/debug.c

   1 /*
   2  * Copyright (c) 2008-2011 Atheros Communications Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include <linux/slab.h>
  18 #include <linux/vmalloc.h>
  19 #include <linux/export.h>
  20 #include <linux/relay.h>
  21 #include <asm/unaligned.h>
  22
  23 #include "ath9k.h"
  24
  25 #define REG_WRITE_D(_ah, _reg, _val) \
  26         ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg))
  27 #define REG_READ_D(_ah, _reg) \
  28         ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
  29
  30
  31 static ssize_t ath9k_debugfs_read_buf(struct file *file, char __user *user_buf,
  32                                       size_t count, loff_t *ppos)
  33 {
  34         u8 *buf = file->private_data;
  35         return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
  36 }
  37
  38 static int ath9k_debugfs_release_buf(struct inode *inode, struct file *file)
  39 {
  40         vfree(file->private_data);
  41         return 0;
  42 }
  43
  44 #ifdef CONFIG_ATH_DEBUG
  45
  46 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
  47                              size_t count, loff_t *ppos)
  48 {
  49         struct ath_softc *sc = file->private_data;
  50         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
  51         char buf[32];
  52         unsigned int len;
  53
  54         len = sprintf(buf, "0x%08x\n", common->debug_mask);
  55         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
  56 }
  57
  58 static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
  59                              size_t count, loff_t *ppos)
  60 {
  61         struct ath_softc *sc = file->private_data;
  62         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
  63         unsigned long mask;
  64         char buf[32];
  65         ssize_t len;
  66
  67         len = min(count, sizeof(buf) - 1);
  68         if (copy_from_user(buf, user_buf, len))
  69                 return -EFAULT;
  70
  71         buf[len] = '\0';
  72         if (kstrtoul(buf, 0, &mask))
  73                 return -EINVAL;
  74
  75         common->debug_mask = mask;
  76         return count;
  77 }
  78
  79 static const struct file_operations fops_debug = {
  80         .read = read_file_debug,
  81         .write = write_file_debug,
  82         .open = simple_open,
  83         .owner = THIS_MODULE,
  84         .llseek = default_llseek,
  85 };
  86
  87 #endif
  88
  89 #define DMA_BUF_LEN 1024
  90
  91 static ssize_t read_file_tx_chainmask(struct file *file, char __user *user_buf,
  92                              size_t count, loff_t *ppos)
  93 {
  94         struct ath_softc *sc = file->private_data;
  95         struct ath_hw *ah = sc->sc_ah;
  96         char buf[32];
  97         unsigned int len;
  98
  99         len = sprintf(buf, "0x%08x\n", ah->txchainmask);
 100         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 101 }
 102
 103 static ssize_t write_file_tx_chainmask(struct file *file, const char __user *user_buf,
 104                              size_t count, loff_t *ppos)
 105 {
 106         struct ath_softc *sc = file->private_data;
 107         struct ath_hw *ah = sc->sc_ah;
 108         unsigned long mask;
 109         char buf[32];
 110         ssize_t len;
 111
 112         len = min(count, sizeof(buf) - 1);
 113         if (copy_from_user(buf, user_buf, len))
 114                 return -EFAULT;
 115
 116         buf[len] = '\0';
 117         if (kstrtoul(buf, 0, &mask))
 118                 return -EINVAL;
 119
 120         ah->txchainmask = mask;
 121         ah->caps.tx_chainmask = mask;
 122         return count;
 123 }
 124
 125 static const struct file_operations fops_tx_chainmask = {
 126         .read = read_file_tx_chainmask,
 127         .write = write_file_tx_chainmask,
 128         .open = simple_open,
 129         .owner = THIS_MODULE,
 130         .llseek = default_llseek,
 131 };
 132
 133
 134 static ssize_t read_file_rx_chainmask(struct file *file, char __user *user_buf,
 135                              size_t count, loff_t *ppos)
 136 {
 137         struct ath_softc *sc = file->private_data;
 138         struct ath_hw *ah = sc->sc_ah;
 139         char buf[32];
 140         unsigned int len;
 141
 142         len = sprintf(buf, "0x%08x\n", ah->rxchainmask);
 143         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 144 }
 145
 146 static ssize_t write_file_rx_chainmask(struct file *file, const char __user *user_buf,
 147                              size_t count, loff_t *ppos)
 148 {
 149         struct ath_softc *sc = file->private_data;
 150         struct ath_hw *ah = sc->sc_ah;
 151         unsigned long mask;
 152         char buf[32];
 153         ssize_t len;
 154
 155         len = min(count, sizeof(buf) - 1);
 156         if (copy_from_user(buf, user_buf, len))
 157                 return -EFAULT;
 158
 159         buf[len] = '\0';
 160         if (kstrtoul(buf, 0, &mask))
 161                 return -EINVAL;
 162
 163         ah->rxchainmask = mask;
 164         ah->caps.rx_chainmask = mask;
 165         return count;
 166 }
 167
 168 static const struct file_operations fops_rx_chainmask = {
 169         .read = read_file_rx_chainmask,
 170         .write = write_file_rx_chainmask,
 171         .open = simple_open,
 172         .owner = THIS_MODULE,
 173         .llseek = default_llseek,
 174 };
 175
 176 static ssize_t read_file_ani(struct file *file, char __user *user_buf,
 177                              size_t count, loff_t *ppos)
 178 {
 179         struct ath_softc *sc = file->private_data;
 180         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 181         struct ath_hw *ah = sc->sc_ah;
 182         unsigned int len = 0, size = 1024;
 183         ssize_t retval = 0;
 184         char *buf;
 185
 186         buf = kzalloc(size, GFP_KERNEL);
 187         if (buf == NULL)
 188                 return -ENOMEM;
 189
 190         if (common->disable_ani) {
 191                 len += snprintf(buf + len, size - len, "%s: %s\n",
 192                                 "ANI", "DISABLED");
 193                 goto exit;
 194         }
 195
 196         len += snprintf(buf + len, size - len, "%15s: %s\n",
 197                         "ANI", "ENABLED");
 198         len += snprintf(buf + len, size - len, "%15s: %u\n",
 199                         "ANI RESET", ah->stats.ast_ani_reset);
 200         len += snprintf(buf + len, size - len, "%15s: %u\n",
 201                         "SPUR UP", ah->stats.ast_ani_spurup);
 202         len += snprintf(buf + len, size - len, "%15s: %u\n",
 203                         "SPUR DOWN", ah->stats.ast_ani_spurup);
 204         len += snprintf(buf + len, size - len, "%15s: %u\n",
 205                         "OFDM WS-DET ON", ah->stats.ast_ani_ofdmon);
 206         len += snprintf(buf + len, size - len, "%15s: %u\n",
 207                         "OFDM WS-DET OFF", ah->stats.ast_ani_ofdmoff);
 208         len += snprintf(buf + len, size - len, "%15s: %u\n",
 209                         "MRC-CCK ON", ah->stats.ast_ani_ccklow);
 210         len += snprintf(buf + len, size - len, "%15s: %u\n",
 211                         "MRC-CCK OFF", ah->stats.ast_ani_cckhigh);
 212         len += snprintf(buf + len, size - len, "%15s: %u\n",
 213                         "FIR-STEP UP", ah->stats.ast_ani_stepup);
 214         len += snprintf(buf + len, size - len, "%15s: %u\n",
 215                         "FIR-STEP DOWN", ah->stats.ast_ani_stepdown);
 216         len += snprintf(buf + len, size - len, "%15s: %u\n",
 217                         "INV LISTENTIME", ah->stats.ast_ani_lneg_or_lzero);
 218         len += snprintf(buf + len, size - len, "%15s: %u\n",
 219                         "OFDM ERRORS", ah->stats.ast_ani_ofdmerrs);
 220         len += snprintf(buf + len, size - len, "%15s: %u\n",
 221                         "CCK ERRORS", ah->stats.ast_ani_cckerrs);
 222 exit:
 223         if (len > size)
 224                 len = size;
 225
 226         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 227         kfree(buf);
 228
 229         return retval;
 230 }
 231
 232 static ssize_t write_file_ani(struct file *file,
 233                               const char __user *user_buf,
 234                               size_t count, loff_t *ppos)
 235 {
 236         struct ath_softc *sc = file->private_data;
 237         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 238         unsigned long ani;
 239         char buf[32];
 240         ssize_t len;
 241
 242         len = min(count, sizeof(buf) - 1);
 243         if (copy_from_user(buf, user_buf, len))
 244                 return -EFAULT;
 245
 246         buf[len] = '\0';
 247         if (kstrtoul(buf, 0, &ani))
 248                 return -EINVAL;
 249
 250         if (ani < 0 || ani > 1)
 251                 return -EINVAL;
 252
 253         common->disable_ani = !ani;
 254
 255         if (common->disable_ani) {
 256                 clear_bit(SC_OP_ANI_RUN, &sc->sc_flags);
 257                 ath_stop_ani(sc);
 258         } else {
 259                 ath_check_ani(sc);
 260         }
 261
 262         return count;
 263 }
 264
 265 static const struct file_operations fops_ani = {
 266         .read = read_file_ani,
 267         .write = write_file_ani,
 268         .open = simple_open,
 269         .owner = THIS_MODULE,
 270         .llseek = default_llseek,
 271 };
 272
 273 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 274
 275 static ssize_t read_file_bt_ant_diversity(struct file *file,
 276                                           char __user *user_buf,
 277                                           size_t count, loff_t *ppos)
 278 {
 279         struct ath_softc *sc = file->private_data;
 280         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 281         char buf[32];
 282         unsigned int len;
 283
 284         len = sprintf(buf, "%d\n", common->bt_ant_diversity);
 285         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 286 }
 287
 288 static ssize_t write_file_bt_ant_diversity(struct file *file,
 289                                            const char __user *user_buf,
 290                                            size_t count, loff_t *ppos)
 291 {
 292         struct ath_softc *sc = file->private_data;
 293         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 294         struct ath9k_hw_capabilities *pCap = &sc->sc_ah->caps;
 295         unsigned long bt_ant_diversity;
 296         char buf[32];
 297         ssize_t len;
 298
 299         len = min(count, sizeof(buf) - 1);
 300         if (copy_from_user(buf, user_buf, len))
 301                 return -EFAULT;
 302
 303         if (!(pCap->hw_caps & ATH9K_HW_CAP_BT_ANT_DIV))
 304                 goto exit;
 305
 306         buf[len] = '\0';
 307         if (kstrtoul(buf, 0, &bt_ant_diversity))
 308                 return -EINVAL;
 309
 310         common->bt_ant_diversity = !!bt_ant_diversity;
 311         ath9k_ps_wakeup(sc);
 312         ath9k_hw_set_bt_ant_diversity(sc->sc_ah, common->bt_ant_diversity);
 313         ath_dbg(common, CONFIG, "Enable WLAN/BT RX Antenna diversity: %d\n",
 314                 common->bt_ant_diversity);
 315         ath9k_ps_restore(sc);
 316 exit:
 317         return count;
 318 }
 319
 320 static const struct file_operations fops_bt_ant_diversity = {
 321         .read = read_file_bt_ant_diversity,
 322         .write = write_file_bt_ant_diversity,
 323         .open = simple_open,
 324         .owner = THIS_MODULE,
 325         .llseek = default_llseek,
 326 };
 327
 328 #endif
 329
 330 void ath9k_debug_stat_ant(struct ath_softc *sc,
 331                           struct ath_hw_antcomb_conf *div_ant_conf,
 332                           int main_rssi_avg, int alt_rssi_avg)
 333 {
 334         struct ath_antenna_stats *as_main = &sc->debug.stats.ant_stats[ANT_MAIN];
 335         struct ath_antenna_stats *as_alt = &sc->debug.stats.ant_stats[ANT_ALT];
 336
 337         as_main->lna_attempt_cnt[div_ant_conf->main_lna_conf]++;
 338         as_alt->lna_attempt_cnt[div_ant_conf->alt_lna_conf]++;
 339
 340         as_main->rssi_avg = main_rssi_avg;
 341         as_alt->rssi_avg = alt_rssi_avg;
 342 }
 343
 344 static ssize_t read_file_antenna_diversity(struct file *file,
 345                                            char __user *user_buf,
 346                                            size_t count, loff_t *ppos)
 347 {
 348         struct ath_softc *sc = file->private_data;
 349         struct ath_hw *ah = sc->sc_ah;
 350         struct ath9k_hw_capabilities *pCap = &ah->caps;
 351         struct ath_antenna_stats *as_main = &sc->debug.stats.ant_stats[ANT_MAIN];
 352         struct ath_antenna_stats *as_alt = &sc->debug.stats.ant_stats[ANT_ALT];
 353         struct ath_hw_antcomb_conf div_ant_conf;
 354         unsigned int len = 0, size = 1024;
 355         ssize_t retval = 0;
 356         char *buf;
 357         char *lna_conf_str[4] = {"LNA1_MINUS_LNA2",
 358                                  "LNA2",
 359                                  "LNA1",
 360                                  "LNA1_PLUS_LNA2"};
 361
 362         buf = kzalloc(size, GFP_KERNEL);
 363         if (buf == NULL)
 364                 return -ENOMEM;
 365
 366         if (!(pCap->hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB)) {
 367                 len += snprintf(buf + len, size - len, "%s\n",
 368                                 "Antenna Diversity Combining is disabled");
 369                 goto exit;
 370         }
 371
 372         ath9k_ps_wakeup(sc);
 373         ath9k_hw_antdiv_comb_conf_get(ah, &div_ant_conf);
 374         len += snprintf(buf + len, size - len, "Current MAIN config : %s\n",
 375                         lna_conf_str[div_ant_conf.main_lna_conf]);
 376         len += snprintf(buf + len, size - len, "Current ALT config  : %s\n",
 377                         lna_conf_str[div_ant_conf.alt_lna_conf]);
 378         len += snprintf(buf + len, size - len, "Average MAIN RSSI   : %d\n",
 379                         as_main->rssi_avg);
 380         len += snprintf(buf + len, size - len, "Average ALT RSSI    : %d\n\n",
 381                         as_alt->rssi_avg);
 382         ath9k_ps_restore(sc);
 383
 384         len += snprintf(buf + len, size - len, "Packet Receive Cnt:\n");
 385         len += snprintf(buf + len, size - len, "-------------------\n");
 386
 387         len += snprintf(buf + len, size - len, "%30s%15s\n",
 388                         "MAIN", "ALT");
 389         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 390                         "TOTAL COUNT",
 391                         as_main->recv_cnt,
 392                         as_alt->recv_cnt);
 393         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 394                         "LNA1",
 395                         as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1],
 396                         as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1]);
 397         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 398                         "LNA2",
 399                         as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2],
 400                         as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2]);
 401         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 402                         "LNA1 + LNA2",
 403                         as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
 404                         as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]);
 405         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 406                         "LNA1 - LNA2",
 407                         as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
 408                         as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
 409
 410         len += snprintf(buf + len, size - len, "\nLNA Config Attempts:\n");
 411         len += snprintf(buf + len, size - len, "--------------------\n");
 412
 413         len += snprintf(buf + len, size - len, "%30s%15s\n",
 414                         "MAIN", "ALT");
 415         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 416                         "LNA1",
 417                         as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1],
 418                         as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1]);
 419         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 420                         "LNA2",
 421                         as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2],
 422                         as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2]);
 423         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 424                         "LNA1 + LNA2",
 425                         as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
 426                         as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]);
 427         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 428                         "LNA1 - LNA2",
 429                         as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
 430                         as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
 431
 432 exit:
 433         if (len > size)
 434                 len = size;
 435
 436         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 437         kfree(buf);
 438
 439         return retval;
 440 }
 441
 442 static const struct file_operations fops_antenna_diversity = {
 443         .read = read_file_antenna_diversity,
 444         .open = simple_open,
 445         .owner = THIS_MODULE,
 446         .llseek = default_llseek,
 447 };
 448
 449 static ssize_t read_file_dma(struct file *file, char __user *user_buf,
 450                              size_t count, loff_t *ppos)
 451 {
 452         struct ath_softc *sc = file->private_data;
 453         struct ath_hw *ah = sc->sc_ah;
 454         char *buf;
 455         int retval;
 456         unsigned int len = 0;
 457         u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
 458         int i, qcuOffset = 0, dcuOffset = 0;
 459         u32 *qcuBase = &val[0], *dcuBase = &val[4];
 460
 461         buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
 462         if (!buf)
 463                 return -ENOMEM;
 464
 465         ath9k_ps_wakeup(sc);
 466
 467         REG_WRITE_D(ah, AR_MACMISC,
 468                   ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
 469                    (AR_MACMISC_MISC_OBS_BUS_1 <<
 470                     AR_MACMISC_MISC_OBS_BUS_MSB_S)));
 471
 472         len += snprintf(buf + len, DMA_BUF_LEN - len,
 473                         "Raw DMA Debug values:\n");
 474
 475         for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
 476                 if (i % 4 == 0)
 477                         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
 478
 479                 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
 480                 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
 481                                 i, val[i]);
 482         }
 483
 484         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
 485         len += snprintf(buf + len, DMA_BUF_LEN - len,
 486                         "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
 487
 488         for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
 489                 if (i == 8) {
 490                         qcuOffset = 0;
 491                         qcuBase++;
 492                 }
 493
 494                 if (i == 6) {
 495                         dcuOffset = 0;
 496                         dcuBase++;
 497                 }
 498
 499                 len += snprintf(buf + len, DMA_BUF_LEN - len,
 500                         "%2d          %2x      %1x     %2x           %2x\n",
 501                         i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
 502                         (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
 503                         val[2] & (0x7 << (i * 3)) >> (i * 3),
 504                         (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
 505         }
 506
 507         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
 508
 509         len += snprintf(buf + len, DMA_BUF_LEN - len,
 510                 "qcu_stitch state:   %2x    qcu_fetch state:        %2x\n",
 511                 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
 512         len += snprintf(buf + len, DMA_BUF_LEN - len,
 513                 "qcu_complete state: %2x    dcu_complete state:     %2x\n",
 514                 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
 515         len += snprintf(buf + len, DMA_BUF_LEN - len,
 516                 "dcu_arb state:      %2x    dcu_fp state:           %2x\n",
 517                 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
 518         len += snprintf(buf + len, DMA_BUF_LEN - len,
 519                 "chan_idle_dur:     %3d    chan_idle_dur_valid:     %1d\n",
 520                 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
 521         len += snprintf(buf + len, DMA_BUF_LEN - len,
 522                 "txfifo_valid_0:      %1d    txfifo_valid_1:          %1d\n",
 523                 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
 524         len += snprintf(buf + len, DMA_BUF_LEN - len,
 525                 "txfifo_dcu_num_0:   %2d    txfifo_dcu_num_1:       %2d\n",
 526                 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
 527
 528         len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
 529                         REG_READ_D(ah, AR_OBS_BUS_1));
 530         len += snprintf(buf + len, DMA_BUF_LEN - len,
 531                         "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
 532
 533         ath9k_ps_restore(sc);
 534
 535         if (len > DMA_BUF_LEN)
 536                 len = DMA_BUF_LEN;
 537
 538         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 539         kfree(buf);
 540         return retval;
 541 }
 542
 543 static const struct file_operations fops_dma = {
 544         .read = read_file_dma,
 545         .open = simple_open,
 546         .owner = THIS_MODULE,
 547         .llseek = default_llseek,
 548 };
 549
 550
 551 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
 552 {
 553         if (status)
 554                 sc->debug.stats.istats.total++;
 555         if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 556                 if (status & ATH9K_INT_RXLP)
 557                         sc->debug.stats.istats.rxlp++;
 558                 if (status & ATH9K_INT_RXHP)
 559                         sc->debug.stats.istats.rxhp++;
 560                 if (status & ATH9K_INT_BB_WATCHDOG)
 561                         sc->debug.stats.istats.bb_watchdog++;
 562         } else {
 563                 if (status & ATH9K_INT_RX)
 564                         sc->debug.stats.istats.rxok++;
 565         }
 566         if (status & ATH9K_INT_RXEOL)
 567                 sc->debug.stats.istats.rxeol++;
 568         if (status & ATH9K_INT_RXORN)
 569                 sc->debug.stats.istats.rxorn++;
 570         if (status & ATH9K_INT_TX)
 571                 sc->debug.stats.istats.txok++;
 572         if (status & ATH9K_INT_TXURN)
 573                 sc->debug.stats.istats.txurn++;
 574         if (status & ATH9K_INT_RXPHY)
 575                 sc->debug.stats.istats.rxphyerr++;
 576         if (status & ATH9K_INT_RXKCM)
 577                 sc->debug.stats.istats.rx_keycache_miss++;
 578         if (status & ATH9K_INT_SWBA)
 579                 sc->debug.stats.istats.swba++;
 580         if (status & ATH9K_INT_BMISS)
 581                 sc->debug.stats.istats.bmiss++;
 582         if (status & ATH9K_INT_BNR)
 583                 sc->debug.stats.istats.bnr++;
 584         if (status & ATH9K_INT_CST)
 585                 sc->debug.stats.istats.cst++;
 586         if (status & ATH9K_INT_GTT)
 587                 sc->debug.stats.istats.gtt++;
 588         if (status & ATH9K_INT_TIM)
 589                 sc->debug.stats.istats.tim++;
 590         if (status & ATH9K_INT_CABEND)
 591                 sc->debug.stats.istats.cabend++;
 592         if (status & ATH9K_INT_DTIMSYNC)
 593                 sc->debug.stats.istats.dtimsync++;
 594         if (status & ATH9K_INT_DTIM)
 595                 sc->debug.stats.istats.dtim++;
 596         if (status & ATH9K_INT_TSFOOR)
 597                 sc->debug.stats.istats.tsfoor++;
 598         if (status & ATH9K_INT_MCI)
 599                 sc->debug.stats.istats.mci++;
 600         if (status & ATH9K_INT_GENTIMER)
 601                 sc->debug.stats.istats.gen_timer++;
 602 }
 603
 604 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
 605                                    size_t count, loff_t *ppos)
 606 {
 607         struct ath_softc *sc = file->private_data;
 608         unsigned int len = 0;
 609         int rv;
 610         int mxlen = 4000;
 611         char *buf = kmalloc(mxlen, GFP_KERNEL);
 612         if (!buf)
 613                 return -ENOMEM;
 614
 615 #define PR_IS(a, s)                                             \
 616         do {                                                    \
 617                 len += snprintf(buf + len, mxlen - len,         \
 618                                 "%21s: %10u\n", a,              \
 619                                 sc->debug.stats.istats.s);      \
 620         } while (0)
 621
 622         if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 623                 PR_IS("RXLP", rxlp);
 624                 PR_IS("RXHP", rxhp);
 625                 PR_IS("WATHDOG", bb_watchdog);
 626         } else {
 627                 PR_IS("RX", rxok);
 628         }
 629         PR_IS("RXEOL", rxeol);
 630         PR_IS("RXORN", rxorn);
 631         PR_IS("TX", txok);
 632         PR_IS("TXURN", txurn);
 633         PR_IS("MIB", mib);
 634         PR_IS("RXPHY", rxphyerr);
 635         PR_IS("RXKCM", rx_keycache_miss);
 636         PR_IS("SWBA", swba);
 637         PR_IS("BMISS", bmiss);
 638         PR_IS("BNR", bnr);
 639         PR_IS("CST", cst);
 640         PR_IS("GTT", gtt);
 641         PR_IS("TIM", tim);
 642         PR_IS("CABEND", cabend);
 643         PR_IS("DTIMSYNC", dtimsync);
 644         PR_IS("DTIM", dtim);
 645         PR_IS("TSFOOR", tsfoor);
 646         PR_IS("MCI", mci);
 647         PR_IS("GENTIMER", gen_timer);
 648         PR_IS("TOTAL", total);
 649
 650         len += snprintf(buf + len, mxlen - len,
 651                         "SYNC_CAUSE stats:\n");
 652
 653         PR_IS("Sync-All", sync_cause_all);
 654         PR_IS("RTC-IRQ", sync_rtc_irq);
 655         PR_IS("MAC-IRQ", sync_mac_irq);
 656         PR_IS("EEPROM-Illegal-Access", eeprom_illegal_access);
 657         PR_IS("APB-Timeout", apb_timeout);
 658         PR_IS("PCI-Mode-Conflict", pci_mode_conflict);
 659         PR_IS("HOST1-Fatal", host1_fatal);
 660         PR_IS("HOST1-Perr", host1_perr);
 661         PR_IS("TRCV-FIFO-Perr", trcv_fifo_perr);
 662         PR_IS("RADM-CPL-EP", radm_cpl_ep);
 663         PR_IS("RADM-CPL-DLLP-Abort", radm_cpl_dllp_abort);
 664         PR_IS("RADM-CPL-TLP-Abort", radm_cpl_tlp_abort);
 665         PR_IS("RADM-CPL-ECRC-Err", radm_cpl_ecrc_err);
 666         PR_IS("RADM-CPL-Timeout", radm_cpl_timeout);
 667         PR_IS("Local-Bus-Timeout", local_timeout);
 668         PR_IS("PM-Access", pm_access);
 669         PR_IS("MAC-Awake", mac_awake);
 670         PR_IS("MAC-Asleep", mac_asleep);
 671         PR_IS("MAC-Sleep-Access", mac_sleep_access);
 672
 673         if (len > mxlen)
 674                 len = mxlen;
 675
 676         rv = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 677         kfree(buf);
 678         return rv;
 679 }
 680
 681 static const struct file_operations fops_interrupt = {
 682         .read = read_file_interrupt,
 683         .open = simple_open,
 684         .owner = THIS_MODULE,
 685         .llseek = default_llseek,
 686 };
 687
 688 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
 689                               size_t count, loff_t *ppos)
 690 {
 691         struct ath_softc *sc = file->private_data;
 692         char *buf;
 693         unsigned int len = 0, size = 2048;
 694         ssize_t retval = 0;
 695
 696         buf = kzalloc(size, GFP_KERNEL);
 697         if (buf == NULL)
 698                 return -ENOMEM;
 699
 700         len += sprintf(buf, "%30s %10s%10s%10s\n\n",
 701                        "BE", "BK", "VI", "VO");
 702
 703         PR("MPDUs Queued:    ", queued);
 704         PR("MPDUs Completed: ", completed);
 705         PR("MPDUs XRetried:  ", xretries);
 706         PR("Aggregates:      ", a_aggr);
 707         PR("AMPDUs Queued HW:", a_queued_hw);
 708         PR("AMPDUs Queued SW:", a_queued_sw);
 709         PR("AMPDUs Completed:", a_completed);
 710         PR("AMPDUs Retried:  ", a_retries);
 711         PR("AMPDUs XRetried: ", a_xretries);
 712         PR("TXERR Filtered:  ", txerr_filtered);
 713         PR("FIFO Underrun:   ", fifo_underrun);
 714         PR("TXOP Exceeded:   ", xtxop);
 715         PR("TXTIMER Expiry:  ", timer_exp);
 716         PR("DESC CFG Error:  ", desc_cfg_err);
 717         PR("DATA Underrun:   ", data_underrun);
 718         PR("DELIM Underrun:  ", delim_underrun);
 719         PR("TX-Pkts-All:     ", tx_pkts_all);
 720         PR("TX-Bytes-All:    ", tx_bytes_all);
 721         PR("HW-put-tx-buf:   ", puttxbuf);
 722         PR("HW-tx-start:     ", txstart);
 723         PR("HW-tx-proc-desc: ", txprocdesc);
 724         PR("TX-Failed:       ", txfailed);
 725
 726         if (len > size)
 727                 len = size;
 728
 729         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 730         kfree(buf);
 731
 732         return retval;
 733 }
 734
 735 static ssize_t print_queue(struct ath_softc *sc, struct ath_txq *txq,
 736                            char *buf, ssize_t size)
 737 {
 738         ssize_t len = 0;
 739
 740         ath_txq_lock(sc, txq);
 741
 742         len += snprintf(buf + len, size - len, "%s: %d ",
 743                         "qnum", txq->axq_qnum);
 744         len += snprintf(buf + len, size - len, "%s: %2d ",
 745                         "qdepth", txq->axq_depth);
 746         len += snprintf(buf + len, size - len, "%s: %2d ",
 747                         "ampdu-depth", txq->axq_ampdu_depth);
 748         len += snprintf(buf + len, size - len, "%s: %3d ",
 749                         "pending", txq->pending_frames);
 750         len += snprintf(buf + len, size - len, "%s: %d\n",
 751                         "stopped", txq->stopped);
 752
 753         ath_txq_unlock(sc, txq);
 754         return len;
 755 }
 756
 757 static ssize_t read_file_queues(struct file *file, char __user *user_buf,
 758                                 size_t count, loff_t *ppos)
 759 {
 760         struct ath_softc *sc = file->private_data;
 761         struct ath_txq *txq;
 762         char *buf;
 763         unsigned int len = 0, size = 1024;
 764         ssize_t retval = 0;
 765         int i;
 766         char *qname[4] = {"VO", "VI", "BE", "BK"};
 767
 768         buf = kzalloc(size, GFP_KERNEL);
 769         if (buf == NULL)
 770                 return -ENOMEM;
 771
 772         for (i = 0; i < IEEE80211_NUM_ACS; i++) {
 773                 txq = sc->tx.txq_map[i];
 774                 len += snprintf(buf + len, size - len, "(%s):  ", qname[i]);
 775                 len += print_queue(sc, txq, buf + len, size - len);
 776         }
 777
 778         len += snprintf(buf + len, size - len, "(CAB): ");
 779         len += print_queue(sc, sc->beacon.cabq, buf + len, size - len);
 780
 781         if (len > size)
 782                 len = size;
 783
 784         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 785         kfree(buf);
 786
 787         return retval;
 788 }
 789
 790 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
 791                               size_t count, loff_t *ppos)
 792 {
 793         struct ath_softc *sc = file->private_data;
 794         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 795         struct ieee80211_hw *hw = sc->hw;
 796         struct ath9k_vif_iter_data iter_data;
 797         char buf[512];
 798         unsigned int len = 0;
 799         ssize_t retval = 0;
 800         unsigned int reg;
 801         u32 rxfilter;
 802
 803         len += snprintf(buf + len, sizeof(buf) - len,
 804                         "BSSID: %pM\n", common->curbssid);
 805         len += snprintf(buf + len, sizeof(buf) - len,
 806                         "BSSID-MASK: %pM\n", common->bssidmask);
 807         len += snprintf(buf + len, sizeof(buf) - len,
 808                         "OPMODE: %s\n", ath_opmode_to_string(sc->sc_ah->opmode));
 809
 810         ath9k_ps_wakeup(sc);
 811         rxfilter = ath9k_hw_getrxfilter(sc->sc_ah);
 812         ath9k_ps_restore(sc);
 813
 814         len += snprintf(buf + len, sizeof(buf) - len,
 815                         "RXFILTER: 0x%x", rxfilter);
 816
 817         if (rxfilter & ATH9K_RX_FILTER_UCAST)
 818                 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
 819         if (rxfilter & ATH9K_RX_FILTER_MCAST)
 820                 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
 821         if (rxfilter & ATH9K_RX_FILTER_BCAST)
 822                 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
 823         if (rxfilter & ATH9K_RX_FILTER_CONTROL)
 824                 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
 825         if (rxfilter & ATH9K_RX_FILTER_BEACON)
 826                 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
 827         if (rxfilter & ATH9K_RX_FILTER_PROM)
 828                 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
 829         if (rxfilter & ATH9K_RX_FILTER_PROBEREQ)
 830                 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
 831         if (rxfilter & ATH9K_RX_FILTER_PHYERR)
 832                 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR");
 833         if (rxfilter & ATH9K_RX_FILTER_MYBEACON)
 834                 len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON");
 835         if (rxfilter & ATH9K_RX_FILTER_COMP_BAR)
 836                 len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
 837         if (rxfilter & ATH9K_RX_FILTER_PSPOLL)
 838                 len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL");
 839         if (rxfilter & ATH9K_RX_FILTER_PHYRADAR)
 840                 len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
 841         if (rxfilter & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
 842                 len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL");
 843         if (rxfilter & ATH9K_RX_FILTER_CONTROL_WRAPPER)
 844                 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL_WRAPPER");
 845
 846         len += snprintf(buf + len, sizeof(buf) - len, "\n");
 847
 848         reg = sc->sc_ah->imask;
 849
 850         len += snprintf(buf + len, sizeof(buf) - len, "INTERRUPT-MASK: 0x%x", reg);
 851
 852         if (reg & ATH9K_INT_SWBA)
 853                 len += snprintf(buf + len, sizeof(buf) - len, " SWBA");
 854         if (reg & ATH9K_INT_BMISS)
 855                 len += snprintf(buf + len, sizeof(buf) - len, " BMISS");
 856         if (reg & ATH9K_INT_CST)
 857                 len += snprintf(buf + len, sizeof(buf) - len, " CST");
 858         if (reg & ATH9K_INT_RX)
 859                 len += snprintf(buf + len, sizeof(buf) - len, " RX");
 860         if (reg & ATH9K_INT_RXHP)
 861                 len += snprintf(buf + len, sizeof(buf) - len, " RXHP");
 862         if (reg & ATH9K_INT_RXLP)
 863                 len += snprintf(buf + len, sizeof(buf) - len, " RXLP");
 864         if (reg & ATH9K_INT_BB_WATCHDOG)
 865                 len += snprintf(buf + len, sizeof(buf) - len, " BB_WATCHDOG");
 866
 867         len += snprintf(buf + len, sizeof(buf) - len, "\n");
 868
 869         ath9k_calculate_iter_data(hw, NULL, &iter_data);
 870
 871         len += snprintf(buf + len, sizeof(buf) - len,
 872                         "VIF-COUNTS: AP: %i STA: %i MESH: %i WDS: %i"
 873                         " ADHOC: %i TOTAL: %hi BEACON-VIF: %hi\n",
 874                         iter_data.naps, iter_data.nstations, iter_data.nmeshes,
 875                         iter_data.nwds, iter_data.nadhocs,
 876                         sc->nvifs, sc->nbcnvifs);
 877
 878         if (len > sizeof(buf))
 879                 len = sizeof(buf);
 880
 881         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 882         return retval;
 883 }
 884
 885 static ssize_t read_file_reset(struct file *file, char __user *user_buf,
 886                                size_t count, loff_t *ppos)
 887 {
 888         struct ath_softc *sc = file->private_data;
 889         char buf[512];
 890         unsigned int len = 0;
 891
 892         len += snprintf(buf + len, sizeof(buf) - len,
 893                         "%17s: %2d\n", "Baseband Hang",
 894                         sc->debug.stats.reset[RESET_TYPE_BB_HANG]);
 895         len += snprintf(buf + len, sizeof(buf) - len,
 896                         "%17s: %2d\n", "Baseband Watchdog",
 897                         sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG]);
 898         len += snprintf(buf + len, sizeof(buf) - len,
 899                         "%17s: %2d\n", "Fatal HW Error",
 900                         sc->debug.stats.reset[RESET_TYPE_FATAL_INT]);
 901         len += snprintf(buf + len, sizeof(buf) - len,
 902                         "%17s: %2d\n", "TX HW error",
 903                         sc->debug.stats.reset[RESET_TYPE_TX_ERROR]);
 904         len += snprintf(buf + len, sizeof(buf) - len,
 905                         "%17s: %2d\n", "TX Path Hang",
 906                         sc->debug.stats.reset[RESET_TYPE_TX_HANG]);
 907         len += snprintf(buf + len, sizeof(buf) - len,
 908                         "%17s: %2d\n", "PLL RX Hang",
 909                         sc->debug.stats.reset[RESET_TYPE_PLL_HANG]);
 910         len += snprintf(buf + len, sizeof(buf) - len,
 911                         "%17s: %2d\n", "MCI Reset",
 912                         sc->debug.stats.reset[RESET_TYPE_MCI]);
 913
 914         if (len > sizeof(buf))
 915                 len = sizeof(buf);
 916
 917         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 918 }
 919
 920 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 921                        struct ath_tx_status *ts, struct ath_txq *txq,
 922                        unsigned int flags)
 923 {
 924         int qnum = txq->axq_qnum;
 925
 926         TX_STAT_INC(qnum, tx_pkts_all);
 927         sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
 928
 929         if (bf_isampdu(bf)) {
 930                 if (flags & ATH_TX_ERROR)
 931                         TX_STAT_INC(qnum, a_xretries);
 932                 else
 933                         TX_STAT_INC(qnum, a_completed);
 934         } else {
 935                 if (ts->ts_status & ATH9K_TXERR_XRETRY)
 936                         TX_STAT_INC(qnum, xretries);
 937                 else
 938                         TX_STAT_INC(qnum, completed);
 939         }
 940
 941         if (ts->ts_status & ATH9K_TXERR_FILT)
 942                 TX_STAT_INC(qnum, txerr_filtered);
 943         if (ts->ts_status & ATH9K_TXERR_FIFO)
 944                 TX_STAT_INC(qnum, fifo_underrun);
 945         if (ts->ts_status & ATH9K_TXERR_XTXOP)
 946                 TX_STAT_INC(qnum, xtxop);
 947         if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
 948                 TX_STAT_INC(qnum, timer_exp);
 949         if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
 950                 TX_STAT_INC(qnum, desc_cfg_err);
 951         if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
 952                 TX_STAT_INC(qnum, data_underrun);
 953         if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
 954                 TX_STAT_INC(qnum, delim_underrun);
 955 }
 956
 957 static const struct file_operations fops_xmit = {
 958         .read = read_file_xmit,
 959         .open = simple_open,
 960         .owner = THIS_MODULE,
 961         .llseek = default_llseek,
 962 };
 963
 964 static const struct file_operations fops_queues = {
 965         .read = read_file_queues,
 966         .open = simple_open,
 967         .owner = THIS_MODULE,
 968         .llseek = default_llseek,
 969 };
 970
 971 static const struct file_operations fops_misc = {
 972         .read = read_file_misc,
 973         .open = simple_open,
 974         .owner = THIS_MODULE,
 975         .llseek = default_llseek,
 976 };
 977
 978 static const struct file_operations fops_reset = {
 979         .read = read_file_reset,
 980         .open = simple_open,
 981         .owner = THIS_MODULE,
 982         .llseek = default_llseek,
 983 };
 984
 985 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 986                               size_t count, loff_t *ppos)
 987 {
 988 #define PHY_ERR(s, p) \
 989         len += snprintf(buf + len, size - len, "%22s : %10u\n", s, \
 990                         sc->debug.stats.rxstats.phy_err_stats[p]);
 991
 992 #define RXS_ERR(s, e)                                       \
 993         do {                                                \
 994                 len += snprintf(buf + len, size - len,      \
 995                                 "%22s : %10u\n", s,         \
 996                                 sc->debug.stats.rxstats.e); \
 997         } while (0)
 998
 999         struct ath_softc *sc = file->private_data;
1000         char *buf;
1001         unsigned int len = 0, size = 1600;
1002         ssize_t retval = 0;
1003
1004         buf = kzalloc(size, GFP_KERNEL);
1005         if (buf == NULL)
1006                 return -ENOMEM;
1007
1008         RXS_ERR("CRC ERR", crc_err);
1009         RXS_ERR("DECRYPT CRC ERR", decrypt_crc_err);
1010         RXS_ERR("PHY ERR", phy_err);
1011         RXS_ERR("MIC ERR", mic_err);
1012         RXS_ERR("PRE-DELIM CRC ERR", pre_delim_crc_err);
1013         RXS_ERR("POST-DELIM CRC ERR", post_delim_crc_err);
1014         RXS_ERR("DECRYPT BUSY ERR", decrypt_busy_err);
1015         RXS_ERR("RX-LENGTH-ERR", rx_len_err);
1016         RXS_ERR("RX-OOM-ERR", rx_oom_err);
1017         RXS_ERR("RX-RATE-ERR", rx_rate_err);
1018         RXS_ERR("RX-TOO-MANY-FRAGS", rx_too_many_frags_err);
1019
1020         PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN);
1021         PHY_ERR("TIMING ERR", ATH9K_PHYERR_TIMING);
1022         PHY_ERR("PARITY ERR", ATH9K_PHYERR_PARITY);
1023         PHY_ERR("RATE ERR", ATH9K_PHYERR_RATE);
1024         PHY_ERR("LENGTH ERR", ATH9K_PHYERR_LENGTH);
1025         PHY_ERR("RADAR ERR", ATH9K_PHYERR_RADAR);
1026         PHY_ERR("SERVICE ERR", ATH9K_PHYERR_SERVICE);
1027         PHY_ERR("TOR ERR", ATH9K_PHYERR_TOR);
1028         PHY_ERR("OFDM-TIMING ERR", ATH9K_PHYERR_OFDM_TIMING);
1029         PHY_ERR("OFDM-SIGNAL-PARITY ERR", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
1030         PHY_ERR("OFDM-RATE ERR", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
1031         PHY_ERR("OFDM-LENGTH ERR", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
1032         PHY_ERR("OFDM-POWER-DROP ERR", ATH9K_PHYERR_OFDM_POWER_DROP);
1033         PHY_ERR("OFDM-SERVICE ERR", ATH9K_PHYERR_OFDM_SERVICE);
1034         PHY_ERR("OFDM-RESTART ERR", ATH9K_PHYERR_OFDM_RESTART);
1035         PHY_ERR("FALSE-RADAR-EXT ERR", ATH9K_PHYERR_FALSE_RADAR_EXT);
1036         PHY_ERR("CCK-TIMING ERR", ATH9K_PHYERR_CCK_TIMING);
1037         PHY_ERR("CCK-HEADER-CRC ERR", ATH9K_PHYERR_CCK_HEADER_CRC);
1038         PHY_ERR("CCK-RATE ERR", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
1039         PHY_ERR("CCK-SERVICE ERR", ATH9K_PHYERR_CCK_SERVICE);
1040         PHY_ERR("CCK-RESTART ERR", ATH9K_PHYERR_CCK_RESTART);
1041         PHY_ERR("CCK-LENGTH ERR", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
1042         PHY_ERR("CCK-POWER-DROP ERR", ATH9K_PHYERR_CCK_POWER_DROP);
1043         PHY_ERR("HT-CRC ERR", ATH9K_PHYERR_HT_CRC_ERROR);
1044         PHY_ERR("HT-LENGTH ERR", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
1045         PHY_ERR("HT-RATE ERR", ATH9K_PHYERR_HT_RATE_ILLEGAL);
1046
1047         RXS_ERR("RX-Pkts-All", rx_pkts_all);
1048         RXS_ERR("RX-Bytes-All", rx_bytes_all);
1049         RXS_ERR("RX-Beacons", rx_beacons);
1050         RXS_ERR("RX-Frags", rx_frags);
1051         RXS_ERR("RX-Spectral", rx_spectral);
1052
1053         if (len > size)
1054                 len = size;
1055
1056         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1057         kfree(buf);
1058
1059         return retval;
1060
1061 #undef RXS_ERR
1062 #undef PHY_ERR
1063 }
1064
1065 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
1066 {
1067 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
1068
1069         RX_STAT_INC(rx_pkts_all);
1070         sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen;
1071
1072         if (rs->rs_status & ATH9K_RXERR_CRC)
1073                 RX_STAT_INC(crc_err);
1074         if (rs->rs_status & ATH9K_RXERR_DECRYPT)
1075                 RX_STAT_INC(decrypt_crc_err);
1076         if (rs->rs_status & ATH9K_RXERR_MIC)
1077                 RX_STAT_INC(mic_err);
1078         if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
1079                 RX_STAT_INC(pre_delim_crc_err);
1080         if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
1081                 RX_STAT_INC(post_delim_crc_err);
1082         if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
1083                 RX_STAT_INC(decrypt_busy_err);
1084
1085         if (rs->rs_status & ATH9K_RXERR_PHY) {
1086                 RX_STAT_INC(phy_err);
1087                 if (rs->rs_phyerr < ATH9K_PHYERR_MAX)
1088                         RX_PHY_ERR_INC(rs->rs_phyerr);
1089         }
1090
1091 #undef RX_PHY_ERR_INC
1092 }
1093
1094 static const struct file_operations fops_recv = {
1095         .read = read_file_recv,
1096         .open = simple_open,
1097         .owner = THIS_MODULE,
1098         .llseek = default_llseek,
1099 };
1100
1101 static ssize_t read_file_spec_scan_ctl(struct file *file, char __user *user_buf,
1102                                        size_t count, loff_t *ppos)
1103 {
1104         struct ath_softc *sc = file->private_data;
1105         char *mode = "";
1106         unsigned int len;
1107
1108         switch (sc->spectral_mode) {
1109         case SPECTRAL_DISABLED:
1110                 mode = "disable";
1111                 break;
1112         case SPECTRAL_BACKGROUND:
1113                 mode = "background";
1114                 break;
1115         case SPECTRAL_CHANSCAN:
1116                 mode = "chanscan";
1117                 break;
1118         case SPECTRAL_MANUAL:
1119                 mode = "manual";
1120                 break;
1121         }
1122         len = strlen(mode);
1123         return simple_read_from_buffer(user_buf, count, ppos, mode, len);
1124 }
1125
1126 static ssize_t write_file_spec_scan_ctl(struct file *file,
1127                                         const char __user *user_buf,
1128                                         size_t count, loff_t *ppos)
1129 {
1130         struct ath_softc *sc = file->private_data;
1131         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1132         char buf[32];
1133         ssize_t len;
1134
1135         len = min(count, sizeof(buf) - 1);
1136         if (copy_from_user(buf, user_buf, len))
1137                 return -EFAULT;
1138
1139         buf[len] = '\0';
1140
1141         if (strncmp("trigger", buf, 7) == 0) {
1142                 ath9k_spectral_scan_trigger(sc->hw);
1143         } else if (strncmp("background", buf, 9) == 0) {
1144                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_BACKGROUND);
1145                 ath_dbg(common, CONFIG, "spectral scan: background mode enabled\n");
1146         } else if (strncmp("chanscan", buf, 8) == 0) {
1147                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_CHANSCAN);
1148                 ath_dbg(common, CONFIG, "spectral scan: channel scan mode enabled\n");
1149         } else if (strncmp("manual", buf, 6) == 0) {
1150                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_MANUAL);
1151                 ath_dbg(common, CONFIG, "spectral scan: manual mode enabled\n");
1152         } else if (strncmp("disable", buf, 7) == 0) {
1153                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_DISABLED);
1154                 ath_dbg(common, CONFIG, "spectral scan: disabled\n");
1155         } else {
1156                 return -EINVAL;
1157         }
1158
1159         return count;
1160 }
1161
1162 static const struct file_operations fops_spec_scan_ctl = {
1163         .read = read_file_spec_scan_ctl,
1164         .write = write_file_spec_scan_ctl,
1165         .open = simple_open,
1166         .owner = THIS_MODULE,
1167         .llseek = default_llseek,
1168 };
1169
1170 static ssize_t read_file_spectral_short_repeat(struct file *file,
1171                                                char __user *user_buf,
1172                                                size_t count, loff_t *ppos)
1173 {
1174         struct ath_softc *sc = file->private_data;
1175         char buf[32];
1176         unsigned int len;
1177
1178         len = sprintf(buf, "%d\n", sc->spec_config.short_repeat);
1179         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1180 }
1181
1182 static ssize_t write_file_spectral_short_repeat(struct file *file,
1183                                                 const char __user *user_buf,
1184                                                 size_t count, loff_t *ppos)
1185 {
1186         struct ath_softc *sc = file->private_data;
1187         unsigned long val;
1188         char buf[32];
1189         ssize_t len;
1190
1191         len = min(count, sizeof(buf) - 1);
1192         if (copy_from_user(buf, user_buf, len))
1193                 return -EFAULT;
1194
1195         buf[len] = '\0';
1196         if (kstrtoul(buf, 0, &val))
1197                 return -EINVAL;
1198
1199         if (val < 0 || val > 1)
1200                 return -EINVAL;
1201
1202         sc->spec_config.short_repeat = val;
1203         return count;
1204 }
1205
1206 static const struct file_operations fops_spectral_short_repeat = {
1207         .read = read_file_spectral_short_repeat,
1208         .write = write_file_spectral_short_repeat,
1209         .open = simple_open,
1210         .owner = THIS_MODULE,
1211         .llseek = default_llseek,
1212 };
1213
1214 static ssize_t read_file_spectral_count(struct file *file,
1215                                         char __user *user_buf,
1216                                         size_t count, loff_t *ppos)
1217 {
1218         struct ath_softc *sc = file->private_data;
1219         char buf[32];
1220         unsigned int len;
1221
1222         len = sprintf(buf, "%d\n", sc->spec_config.count);
1223         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1224 }
1225
1226 static ssize_t write_file_spectral_count(struct file *file,
1227                                          const char __user *user_buf,
1228                                          size_t count, loff_t *ppos)
1229 {
1230         struct ath_softc *sc = file->private_data;
1231         unsigned long val;
1232         char buf[32];
1233         ssize_t len;
1234
1235         len = min(count, sizeof(buf) - 1);
1236         if (copy_from_user(buf, user_buf, len))
1237                 return -EFAULT;
1238
1239         buf[len] = '\0';
1240         if (kstrtoul(buf, 0, &val))
1241                 return -EINVAL;
1242
1243         if (val < 0 || val > 255)
1244                 return -EINVAL;
1245
1246         sc->spec_config.count = val;
1247         return count;
1248 }
1249
1250 static const struct file_operations fops_spectral_count = {
1251         .read = read_file_spectral_count,
1252         .write = write_file_spectral_count,
1253         .open = simple_open,
1254         .owner = THIS_MODULE,
1255         .llseek = default_llseek,
1256 };
1257
1258 static ssize_t read_file_spectral_period(struct file *file,
1259                                          char __user *user_buf,
1260                                          size_t count, loff_t *ppos)
1261 {
1262         struct ath_softc *sc = file->private_data;
1263         char buf[32];
1264         unsigned int len;
1265
1266         len = sprintf(buf, "%d\n", sc->spec_config.period);
1267         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1268 }
1269
1270 static ssize_t write_file_spectral_period(struct file *file,
1271                                           const char __user *user_buf,
1272                                           size_t count, loff_t *ppos)
1273 {
1274         struct ath_softc *sc = file->private_data;
1275         unsigned long val;
1276         char buf[32];
1277         ssize_t len;
1278
1279         len = min(count, sizeof(buf) - 1);
1280         if (copy_from_user(buf, user_buf, len))
1281                 return -EFAULT;
1282
1283         buf[len] = '\0';
1284         if (kstrtoul(buf, 0, &val))
1285                 return -EINVAL;
1286
1287         if (val < 0 || val > 255)
1288                 return -EINVAL;
1289
1290         sc->spec_config.period = val;
1291         return count;
1292 }
1293
1294 static const struct file_operations fops_spectral_period = {
1295         .read = read_file_spectral_period,
1296         .write = write_file_spectral_period,
1297         .open = simple_open,
1298         .owner = THIS_MODULE,
1299         .llseek = default_llseek,
1300 };
1301
1302 static ssize_t read_file_spectral_fft_period(struct file *file,
1303                                              char __user *user_buf,
1304                                              size_t count, loff_t *ppos)
1305 {
1306         struct ath_softc *sc = file->private_data;
1307         char buf[32];
1308         unsigned int len;
1309
1310         len = sprintf(buf, "%d\n", sc->spec_config.fft_period);
1311         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1312 }
1313
1314 static ssize_t write_file_spectral_fft_period(struct file *file,
1315                                               const char __user *user_buf,
1316                                               size_t count, loff_t *ppos)
1317 {
1318         struct ath_softc *sc = file->private_data;
1319         unsigned long val;
1320         char buf[32];
1321         ssize_t len;
1322
1323         len = min(count, sizeof(buf) - 1);
1324         if (copy_from_user(buf, user_buf, len))
1325                 return -EFAULT;
1326
1327         buf[len] = '\0';
1328         if (kstrtoul(buf, 0, &val))
1329                 return -EINVAL;
1330
1331         if (val < 0 || val > 15)
1332                 return -EINVAL;
1333
1334         sc->spec_config.fft_period = val;
1335         return count;
1336 }
1337
1338 static const struct file_operations fops_spectral_fft_period = {
1339         .read = read_file_spectral_fft_period,
1340         .write = write_file_spectral_fft_period,
1341         .open = simple_open,
1342         .owner = THIS_MODULE,
1343         .llseek = default_llseek,
1344 };
1345
1346 static struct dentry *create_buf_file_handler(const char *filename,
1347                                               struct dentry *parent,
1348                                               umode_t mode,
1349                                               struct rchan_buf *buf,
1350                                               int *is_global)
1351 {
1352         struct dentry *buf_file;
1353
1354         buf_file = debugfs_create_file(filename, mode, parent, buf,
1355                                        &relay_file_operations);
1356         *is_global = 1;
1357         return buf_file;
1358 }
1359
1360 static int remove_buf_file_handler(struct dentry *dentry)
1361 {
1362         debugfs_remove(dentry);
1363
1364         return 0;
1365 }
1366
1367 void ath_debug_send_fft_sample(struct ath_softc *sc,
1368                                struct fft_sample_tlv *fft_sample_tlv)
1369 {
1370         int length;
1371         if (!sc->rfs_chan_spec_scan)
1372                 return;
1373
1374         length = __be16_to_cpu(fft_sample_tlv->length) +
1375                  sizeof(*fft_sample_tlv);
1376         relay_write(sc->rfs_chan_spec_scan, fft_sample_tlv, length);
1377 }
1378
1379 static struct rchan_callbacks rfs_spec_scan_cb = {
1380         .create_buf_file = create_buf_file_handler,
1381         .remove_buf_file = remove_buf_file_handler,
1382 };
1383
1384
1385 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
1386                                 size_t count, loff_t *ppos)
1387 {
1388         struct ath_softc *sc = file->private_data;
1389         char buf[32];
1390         unsigned int len;
1391
1392         len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
1393         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1394 }
1395
1396 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
1397                              size_t count, loff_t *ppos)
1398 {
1399         struct ath_softc *sc = file->private_data;
1400         unsigned long regidx;
1401         char buf[32];
1402         ssize_t len;
1403
1404         len = min(count, sizeof(buf) - 1);
1405         if (copy_from_user(buf, user_buf, len))
1406                 return -EFAULT;
1407
1408         buf[len] = '\0';
1409         if (kstrtoul(buf, 0, &regidx))
1410                 return -EINVAL;
1411
1412         sc->debug.regidx = regidx;
1413         return count;
1414 }
1415
1416 static const struct file_operations fops_regidx = {
1417         .read = read_file_regidx,
1418         .write = write_file_regidx,
1419         .open = simple_open,
1420         .owner = THIS_MODULE,
1421         .llseek = default_llseek,
1422 };
1423
1424 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
1425                              size_t count, loff_t *ppos)
1426 {
1427         struct ath_softc *sc = file->private_data;
1428         struct ath_hw *ah = sc->sc_ah;
1429         char buf[32];
1430         unsigned int len;
1431         u32 regval;
1432
1433         ath9k_ps_wakeup(sc);
1434         regval = REG_READ_D(ah, sc->debug.regidx);
1435         ath9k_ps_restore(sc);
1436         len = sprintf(buf, "0x%08x\n", regval);
1437         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1438 }
1439
1440 static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
1441                              size_t count, loff_t *ppos)
1442 {
1443         struct ath_softc *sc = file->private_data;
1444         struct ath_hw *ah = sc->sc_ah;
1445         unsigned long regval;
1446         char buf[32];
1447         ssize_t len;
1448
1449         len = min(count, sizeof(buf) - 1);
1450         if (copy_from_user(buf, user_buf, len))
1451                 return -EFAULT;
1452
1453         buf[len] = '\0';
1454         if (kstrtoul(buf, 0, &regval))
1455                 return -EINVAL;
1456
1457         ath9k_ps_wakeup(sc);
1458         REG_WRITE_D(ah, sc->debug.regidx, regval);
1459         ath9k_ps_restore(sc);
1460         return count;
1461 }
1462
1463 static const struct file_operations fops_regval = {
1464         .read = read_file_regval,
1465         .write = write_file_regval,
1466         .open = simple_open,
1467         .owner = THIS_MODULE,
1468         .llseek = default_llseek,
1469 };
1470
1471 #define REGDUMP_LINE_SIZE       20
1472
1473 static int open_file_regdump(struct inode *inode, struct file *file)
1474 {
1475         struct ath_softc *sc = inode->i_private;
1476         unsigned int len = 0;
1477         u8 *buf;
1478         int i;
1479         unsigned long num_regs, regdump_len, max_reg_offset;
1480
1481         max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x16bd4 : 0xb500;
1482         num_regs = max_reg_offset / 4 + 1;
1483         regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
1484         buf = vmalloc(regdump_len);
1485         if (!buf)
1486                 return -ENOMEM;
1487
1488         ath9k_ps_wakeup(sc);
1489         for (i = 0; i < num_regs; i++)
1490                 len += scnprintf(buf + len, regdump_len - len,
1491                         "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
1492         ath9k_ps_restore(sc);
1493
1494         file->private_data = buf;
1495
1496         return 0;
1497 }
1498
1499 static const struct file_operations fops_regdump = {
1500         .open = open_file_regdump,
1501         .read = ath9k_debugfs_read_buf,
1502         .release = ath9k_debugfs_release_buf,
1503         .owner = THIS_MODULE,
1504         .llseek = default_llseek,/* read accesses f_pos */
1505 };
1506
1507 static ssize_t read_file_dump_nfcal(struct file *file, char __user *user_buf,
1508                                     size_t count, loff_t *ppos)
1509 {
1510         struct ath_softc *sc = file->private_data;
1511         struct ath_hw *ah = sc->sc_ah;
1512         struct ath9k_nfcal_hist *h = sc->caldata.nfCalHist;
1513         struct ath_common *common = ath9k_hw_common(ah);
1514         struct ieee80211_conf *conf = &common->hw->conf;
1515         u32 len = 0, size = 1500;
1516         u32 i, j;
1517         ssize_t retval = 0;
1518         char *buf;
1519         u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
1520         u8 nread;
1521
1522         buf = kzalloc(size, GFP_KERNEL);
1523         if (!buf)
1524                 return -ENOMEM;
1525
1526         len += snprintf(buf + len, size - len,
1527                         "Channel Noise Floor : %d\n", ah->noise);
1528         len += snprintf(buf + len, size - len,
1529                         "Chain | privNF | # Readings | NF Readings\n");
1530         for (i = 0; i < NUM_NF_READINGS; i++) {
1531                 if (!(chainmask & (1 << i)) ||
1532                     ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
1533                         continue;
1534
1535                 nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount;
1536                 len += snprintf(buf + len, size - len, " %d\t %d\t %d\t\t",
1537                                 i, h[i].privNF, nread);
1538                 for (j = 0; j < nread; j++)
1539                         len += snprintf(buf + len, size - len,
1540                                         " %d", h[i].nfCalBuffer[j]);
1541                 len += snprintf(buf + len, size - len, "\n");
1542         }
1543
1544         if (len > size)
1545                 len = size;
1546
1547         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1548         kfree(buf);
1549
1550         return retval;
1551 }
1552
1553 static const struct file_operations fops_dump_nfcal = {
1554         .read = read_file_dump_nfcal,
1555         .open = simple_open,
1556         .owner = THIS_MODULE,
1557         .llseek = default_llseek,
1558 };
1559
1560 static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
1561                                      size_t count, loff_t *ppos)
1562 {
1563         struct ath_softc *sc = file->private_data;
1564         struct ath_hw *ah = sc->sc_ah;
1565         u32 len = 0, size = 1500;
1566         ssize_t retval = 0;
1567         char *buf;
1568
1569         buf = kzalloc(size, GFP_KERNEL);
1570         if (!buf)
1571                 return -ENOMEM;
1572
1573         len = ah->eep_ops->dump_eeprom(ah, true, buf, len, size);
1574
1575         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1576         kfree(buf);
1577
1578         return retval;
1579 }
1580
1581 static const struct file_operations fops_base_eeprom = {
1582         .read = read_file_base_eeprom,
1583         .open = simple_open,
1584         .owner = THIS_MODULE,
1585         .llseek = default_llseek,
1586 };
1587
1588 static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf,
1589                                       size_t count, loff_t *ppos)
1590 {
1591         struct ath_softc *sc = file->private_data;
1592         struct ath_hw *ah = sc->sc_ah;
1593         u32 len = 0, size = 6000;
1594         char *buf;
1595         size_t retval;
1596
1597         buf = kzalloc(size, GFP_KERNEL);
1598         if (buf == NULL)
1599                 return -ENOMEM;
1600
1601         len = ah->eep_ops->dump_eeprom(ah, false, buf, len, size);
1602
1603         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1604         kfree(buf);
1605
1606         return retval;
1607 }
1608
1609 static const struct file_operations fops_modal_eeprom = {
1610         .read = read_file_modal_eeprom,
1611         .open = simple_open,
1612         .owner = THIS_MODULE,
1613         .llseek = default_llseek,
1614 };
1615
1616 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1617 static ssize_t read_file_btcoex(struct file *file, char __user *user_buf,
1618                                 size_t count, loff_t *ppos)
1619 {
1620         struct ath_softc *sc = file->private_data;
1621         u32 len = 0, size = 1500;
1622         char *buf;
1623         size_t retval;
1624
1625         buf = kzalloc(size, GFP_KERNEL);
1626         if (buf == NULL)
1627                 return -ENOMEM;
1628
1629         if (!sc->sc_ah->common.btcoex_enabled) {
1630                 len = snprintf(buf, size, "%s\n",
1631                                "BTCOEX is disabled");
1632                 goto exit;
1633         }
1634
1635         len = ath9k_dump_btcoex(sc, buf, size);
1636 exit:
1637         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1638         kfree(buf);
1639
1640         return retval;
1641 }
1642
1643 static const struct file_operations fops_btcoex = {
1644         .read = read_file_btcoex,
1645         .open = simple_open,
1646         .owner = THIS_MODULE,
1647         .llseek = default_llseek,
1648 };
1649 #endif
1650
1651 static ssize_t read_file_node_stat(struct file *file, char __user *user_buf,
1652                                    size_t count, loff_t *ppos)
1653 {
1654         struct ath_node *an = file->private_data;
1655         struct ath_softc *sc = an->sc;
1656         struct ath_atx_tid *tid;
1657         struct ath_atx_ac *ac;
1658         struct ath_txq *txq;
1659         u32 len = 0, size = 4096;
1660         char *buf;
1661         size_t retval;
1662         int tidno, acno;
1663
1664         buf = kzalloc(size, GFP_KERNEL);
1665         if (buf == NULL)
1666                 return -ENOMEM;
1667
1668         if (!an->sta->ht_cap.ht_supported) {
1669                 len = snprintf(buf, size, "%s\n",
1670                                "HT not supported");
1671                 goto exit;
1672         }
1673
1674         len = snprintf(buf, size, "Max-AMPDU: %d\n",
1675                        an->maxampdu);
1676         len += snprintf(buf + len, size - len, "MPDU Density: %d\n\n",
1677                         an->mpdudensity);
1678
1679         len += snprintf(buf + len, size - len,
1680                         "%2s%7s\n", "AC", "SCHED");
1681
1682         for (acno = 0, ac = &an->ac[acno];
1683              acno < IEEE80211_NUM_ACS; acno++, ac++) {
1684                 txq = ac->txq;
1685                 ath_txq_lock(sc, txq);
1686                 len += snprintf(buf + len, size - len,
1687                                 "%2d%7d\n",
1688                                 acno, ac->sched);
1689                 ath_txq_unlock(sc, txq);
1690         }
1691
1692         len += snprintf(buf + len, size - len,
1693                         "\n%3s%11s%10s%10s%10s%10s%9s%6s%8s\n",
1694                         "TID", "SEQ_START", "SEQ_NEXT", "BAW_SIZE",
1695                         "BAW_HEAD", "BAW_TAIL", "BAR_IDX", "SCHED", "PAUSED");
1696
1697         for (tidno = 0, tid = &an->tid[tidno];
1698              tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
1699                 txq = tid->ac->txq;
1700                 ath_txq_lock(sc, txq);
1701                 len += snprintf(buf + len, size - len,
1702                                 "%3d%11d%10d%10d%10d%10d%9d%6d%8d\n",
1703                                 tid->tidno, tid->seq_start, tid->seq_next,
1704                                 tid->baw_size, tid->baw_head, tid->baw_tail,
1705                                 tid->bar_index, tid->sched, tid->paused);
1706                 ath_txq_unlock(sc, txq);
1707         }
1708 exit:
1709         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1710         kfree(buf);
1711
1712         return retval;
1713 }
1714
1715 static const struct file_operations fops_node_stat = {
1716         .read = read_file_node_stat,
1717         .open = simple_open,
1718         .owner = THIS_MODULE,
1719         .llseek = default_llseek,
1720 };
1721
1722 void ath9k_sta_add_debugfs(struct ieee80211_hw *hw,
1723                            struct ieee80211_vif *vif,
1724                            struct ieee80211_sta *sta,
1725                            struct dentry *dir)
1726 {
1727         struct ath_node *an = (struct ath_node *)sta->drv_priv;
1728         debugfs_create_file("node_stat", S_IRUGO, dir, an, &fops_node_stat);
1729 }
1730
1731 /* Ethtool support for get-stats */
1732
1733 #define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
1734 static const char ath9k_gstrings_stats[][ETH_GSTRING_LEN] = {
1735         "tx_pkts_nic",
1736         "tx_bytes_nic",
1737         "rx_pkts_nic",
1738         "rx_bytes_nic",
1739         AMKSTR(d_tx_pkts),
1740         AMKSTR(d_tx_bytes),
1741         AMKSTR(d_tx_mpdus_queued),
1742         AMKSTR(d_tx_mpdus_completed),
1743         AMKSTR(d_tx_mpdu_xretries),
1744         AMKSTR(d_tx_aggregates),
1745         AMKSTR(d_tx_ampdus_queued_hw),
1746         AMKSTR(d_tx_ampdus_queued_sw),
1747         AMKSTR(d_tx_ampdus_completed),
1748         AMKSTR(d_tx_ampdu_retries),
1749         AMKSTR(d_tx_ampdu_xretries),
1750         AMKSTR(d_tx_fifo_underrun),
1751         AMKSTR(d_tx_op_exceeded),
1752         AMKSTR(d_tx_timer_expiry),
1753         AMKSTR(d_tx_desc_cfg_err),
1754         AMKSTR(d_tx_data_underrun),
1755         AMKSTR(d_tx_delim_underrun),
1756         "d_rx_crc_err",
1757         "d_rx_decrypt_crc_err",
1758         "d_rx_phy_err",
1759         "d_rx_mic_err",
1760         "d_rx_pre_delim_crc_err",
1761         "d_rx_post_delim_crc_err",
1762         "d_rx_decrypt_busy_err",
1763
1764         "d_rx_phyerr_radar",
1765         "d_rx_phyerr_ofdm_timing",
1766         "d_rx_phyerr_cck_timing",
1767
1768 };
1769 #define ATH9K_SSTATS_LEN ARRAY_SIZE(ath9k_gstrings_stats)
1770
1771 void ath9k_get_et_strings(struct ieee80211_hw *hw,
1772                           struct ieee80211_vif *vif,
1773                           u32 sset, u8 *data)
1774 {
1775         if (sset == ETH_SS_STATS)
1776                 memcpy(data, *ath9k_gstrings_stats,
1777                        sizeof(ath9k_gstrings_stats));
1778 }
1779
1780 int ath9k_get_et_sset_count(struct ieee80211_hw *hw,
1781                             struct ieee80211_vif *vif, int sset)
1782 {
1783         if (sset == ETH_SS_STATS)
1784                 return ATH9K_SSTATS_LEN;
1785         return 0;
1786 }
1787
1788 #define AWDATA(elem)                                                    \
1789         do {                                                            \
1790                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].elem; \
1791                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].elem; \
1792                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].elem; \
1793                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].elem; \
1794         } while (0)
1795
1796 #define AWDATA_RX(elem)                                         \
1797         do {                                                    \
1798                 data[i++] = sc->debug.stats.rxstats.elem;       \
1799         } while (0)
1800
1801 void ath9k_get_et_stats(struct ieee80211_hw *hw,
1802                         struct ieee80211_vif *vif,
1803                         struct ethtool_stats *stats, u64 *data)
1804 {
1805         struct ath_softc *sc = hw->priv;
1806         int i = 0;
1807
1808         data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_pkts_all +
1809                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_pkts_all +
1810                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_pkts_all +
1811                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_pkts_all);
1812         data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_bytes_all +
1813                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_bytes_all +
1814                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_bytes_all +
1815                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_bytes_all);
1816         AWDATA_RX(rx_pkts_all);
1817         AWDATA_RX(rx_bytes_all);
1818
1819         AWDATA(tx_pkts_all);
1820         AWDATA(tx_bytes_all);
1821         AWDATA(queued);
1822         AWDATA(completed);
1823         AWDATA(xretries);
1824         AWDATA(a_aggr);
1825         AWDATA(a_queued_hw);
1826         AWDATA(a_queued_sw);
1827         AWDATA(a_completed);
1828         AWDATA(a_retries);
1829         AWDATA(a_xretries);
1830         AWDATA(fifo_underrun);
1831         AWDATA(xtxop);
1832         AWDATA(timer_exp);
1833         AWDATA(desc_cfg_err);
1834         AWDATA(data_underrun);
1835         AWDATA(delim_underrun);
1836
1837         AWDATA_RX(crc_err);
1838         AWDATA_RX(decrypt_crc_err);
1839         AWDATA_RX(phy_err);
1840         AWDATA_RX(mic_err);
1841         AWDATA_RX(pre_delim_crc_err);
1842         AWDATA_RX(post_delim_crc_err);
1843         AWDATA_RX(decrypt_busy_err);
1844
1845         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_RADAR]);
1846         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_OFDM_TIMING]);
1847         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_CCK_TIMING]);
1848
1849         WARN_ON(i != ATH9K_SSTATS_LEN);
1850 }
1851
1852 void ath9k_deinit_debug(struct ath_softc *sc)
1853 {
1854         if (config_enabled(CONFIG_ATH9K_DEBUGFS) && sc->rfs_chan_spec_scan) {
1855                 relay_close(sc->rfs_chan_spec_scan);
1856                 sc->rfs_chan_spec_scan = NULL;
1857         }
1858 }
1859
1860 int ath9k_init_debug(struct ath_hw *ah)
1861 {
1862         struct ath_common *common = ath9k_hw_common(ah);
1863         struct ath_softc *sc = (struct ath_softc *) common->priv;
1864
1865         sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
1866                                                    sc->hw->wiphy->debugfsdir);
1867         if (!sc->debug.debugfs_phy)
1868                 return -ENOMEM;
1869
1870 #ifdef CONFIG_ATH_DEBUG
1871         debugfs_create_file("debug", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1872                             sc, &fops_debug);
1873 #endif
1874
1875         ath9k_dfs_init_debug(sc);
1876
1877         debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
1878                             &fops_dma);
1879         debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc,
1880                             &fops_interrupt);
1881         debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc,
1882                             &fops_xmit);
1883         debugfs_create_file("queues", S_IRUSR, sc->debug.debugfs_phy, sc,
1884                             &fops_queues);
1885         debugfs_create_u32("qlen_bk", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1886                            &sc->tx.txq_max_pending[IEEE80211_AC_BK]);
1887         debugfs_create_u32("qlen_be", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1888                            &sc->tx.txq_max_pending[IEEE80211_AC_BE]);
1889         debugfs_create_u32("qlen_vi", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1890                            &sc->tx.txq_max_pending[IEEE80211_AC_VI]);
1891         debugfs_create_u32("qlen_vo", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1892                            &sc->tx.txq_max_pending[IEEE80211_AC_VO]);
1893         debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc,
1894                             &fops_misc);
1895         debugfs_create_file("reset", S_IRUSR, sc->debug.debugfs_phy, sc,
1896                             &fops_reset);
1897         debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc,
1898                             &fops_recv);
1899         debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
1900                             sc->debug.debugfs_phy, sc, &fops_rx_chainmask);
1901         debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
1902                             sc->debug.debugfs_phy, sc, &fops_tx_chainmask);
1903         debugfs_create_file("ani", S_IRUSR | S_IWUSR,
1904                             sc->debug.debugfs_phy, sc, &fops_ani);
1905         debugfs_create_bool("paprd", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1906                             &sc->sc_ah->config.enable_paprd);
1907         debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1908                             sc, &fops_regidx);
1909         debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1910                             sc, &fops_regval);
1911         debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
1912                             sc->debug.debugfs_phy,
1913                             &ah->config.cwm_ignore_extcca);
1914         debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc,
1915                             &fops_regdump);
1916         debugfs_create_file("dump_nfcal", S_IRUSR, sc->debug.debugfs_phy, sc,
1917                             &fops_dump_nfcal);
1918         debugfs_create_file("base_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
1919                             &fops_base_eeprom);
1920         debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
1921                             &fops_modal_eeprom);
1922         sc->rfs_chan_spec_scan = relay_open("spectral_scan",
1923                                             sc->debug.debugfs_phy,
1924                                             1024, 256, &rfs_spec_scan_cb,
1925                                             NULL);
1926         debugfs_create_file("spectral_scan_ctl", S_IRUSR | S_IWUSR,
1927                             sc->debug.debugfs_phy, sc,
1928                             &fops_spec_scan_ctl);
1929         debugfs_create_file("spectral_short_repeat", S_IRUSR | S_IWUSR,
1930                             sc->debug.debugfs_phy, sc,
1931                             &fops_spectral_short_repeat);
1932         debugfs_create_file("spectral_count", S_IRUSR | S_IWUSR,
1933                             sc->debug.debugfs_phy, sc, &fops_spectral_count);
1934         debugfs_create_file("spectral_period", S_IRUSR | S_IWUSR,
1935                             sc->debug.debugfs_phy, sc, &fops_spectral_period);
1936         debugfs_create_file("spectral_fft_period", S_IRUSR | S_IWUSR,
1937                             sc->debug.debugfs_phy, sc,
1938                             &fops_spectral_fft_period);
1939         debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
1940                            sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
1941         debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
1942                            sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
1943         debugfs_create_file("antenna_diversity", S_IRUSR,
1944                             sc->debug.debugfs_phy, sc, &fops_antenna_diversity);
1945 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1946         debugfs_create_file("bt_ant_diversity", S_IRUSR | S_IWUSR,
1947                             sc->debug.debugfs_phy, sc, &fops_bt_ant_diversity);
1948         debugfs_create_file("btcoex", S_IRUSR, sc->debug.debugfs_phy, sc,
1949                             &fops_btcoex);
1950 #endif
1951         return 0;
1952 }