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 static ssize_t read_file_bt_ant_diversity(struct file *file,
 274                                           char __user *user_buf,
 275                                           size_t count, loff_t *ppos)
 276 {
 277         struct ath_softc *sc = file->private_data;
 278         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 279         char buf[32];
 280         unsigned int len;
 281
 282         len = sprintf(buf, "%d\n", common->bt_ant_diversity);
 283         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 284 }
 285
 286 static ssize_t write_file_bt_ant_diversity(struct file *file,
 287                                            const char __user *user_buf,
 288                                            size_t count, loff_t *ppos)
 289 {
 290         struct ath_softc *sc = file->private_data;
 291         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 292         struct ath9k_hw_capabilities *pCap = &sc->sc_ah->caps;
 293         unsigned long bt_ant_diversity;
 294         char buf[32];
 295         ssize_t len;
 296
 297         len = min(count, sizeof(buf) - 1);
 298         if (copy_from_user(buf, user_buf, len))
 299                 return -EFAULT;
 300
 301         if (!(pCap->hw_caps & ATH9K_HW_CAP_BT_ANT_DIV))
 302                 goto exit;
 303
 304         buf[len] = '\0';
 305         if (kstrtoul(buf, 0, &bt_ant_diversity))
 306                 return -EINVAL;
 307
 308         common->bt_ant_diversity = !!bt_ant_diversity;
 309         ath9k_ps_wakeup(sc);
 310         ath_ant_comb_update(sc);
 311         ath_dbg(common, CONFIG, "Enable WLAN/BT RX Antenna diversity: %d\n",
 312                 common->bt_ant_diversity);
 313         ath9k_ps_restore(sc);
 314 exit:
 315         return count;
 316 }
 317
 318 static const struct file_operations fops_bt_ant_diversity = {
 319         .read = read_file_bt_ant_diversity,
 320         .write = write_file_bt_ant_diversity,
 321         .open = simple_open,
 322         .owner = THIS_MODULE,
 323         .llseek = default_llseek,
 324 };
 325
 326 void ath9k_debug_stat_ant(struct ath_softc *sc,
 327                           struct ath_hw_antcomb_conf *div_ant_conf,
 328                           int main_rssi_avg, int alt_rssi_avg)
 329 {
 330         struct ath_antenna_stats *as_main = &sc->debug.stats.ant_stats[ANT_MAIN];
 331         struct ath_antenna_stats *as_alt = &sc->debug.stats.ant_stats[ANT_ALT];
 332
 333         as_main->lna_attempt_cnt[div_ant_conf->main_lna_conf]++;
 334         as_alt->lna_attempt_cnt[div_ant_conf->alt_lna_conf]++;
 335
 336         as_main->rssi_avg = main_rssi_avg;
 337         as_alt->rssi_avg = alt_rssi_avg;
 338 }
 339
 340 static ssize_t read_file_antenna_diversity(struct file *file,
 341                                            char __user *user_buf,
 342                                            size_t count, loff_t *ppos)
 343 {
 344         struct ath_softc *sc = file->private_data;
 345         struct ath_hw *ah = sc->sc_ah;
 346         struct ath9k_hw_capabilities *pCap = &ah->caps;
 347         struct ath_antenna_stats *as_main = &sc->debug.stats.ant_stats[ANT_MAIN];
 348         struct ath_antenna_stats *as_alt = &sc->debug.stats.ant_stats[ANT_ALT];
 349         struct ath_hw_antcomb_conf div_ant_conf;
 350         unsigned int len = 0, size = 1024;
 351         ssize_t retval = 0;
 352         char *buf;
 353         char *lna_conf_str[4] = {"LNA1_MINUS_LNA2",
 354                                  "LNA2",
 355                                  "LNA1",
 356                                  "LNA1_PLUS_LNA2"};
 357
 358         buf = kzalloc(size, GFP_KERNEL);
 359         if (buf == NULL)
 360                 return -ENOMEM;
 361
 362         if (!(pCap->hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB)) {
 363                 len += snprintf(buf + len, size - len, "%s\n",
 364                                 "Antenna Diversity Combining is disabled");
 365                 goto exit;
 366         }
 367
 368         ath9k_ps_wakeup(sc);
 369         ath9k_hw_antdiv_comb_conf_get(ah, &div_ant_conf);
 370         len += snprintf(buf + len, size - len, "Current MAIN config : %s\n",
 371                         lna_conf_str[div_ant_conf.main_lna_conf]);
 372         len += snprintf(buf + len, size - len, "Current ALT config  : %s\n",
 373                         lna_conf_str[div_ant_conf.alt_lna_conf]);
 374         len += snprintf(buf + len, size - len, "Average MAIN RSSI   : %d\n",
 375                         as_main->rssi_avg);
 376         len += snprintf(buf + len, size - len, "Average ALT RSSI    : %d\n\n",
 377                         as_alt->rssi_avg);
 378         ath9k_ps_restore(sc);
 379
 380         len += snprintf(buf + len, size - len, "Packet Receive Cnt:\n");
 381         len += snprintf(buf + len, size - len, "-------------------\n");
 382
 383         len += snprintf(buf + len, size - len, "%30s%15s\n",
 384                         "MAIN", "ALT");
 385         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 386                         "TOTAL COUNT",
 387                         as_main->recv_cnt,
 388                         as_alt->recv_cnt);
 389         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 390                         "LNA1",
 391                         as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1],
 392                         as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1]);
 393         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 394                         "LNA2",
 395                         as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2],
 396                         as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2]);
 397         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 398                         "LNA1 + LNA2",
 399                         as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
 400                         as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_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_MINUS_LNA2],
 404                         as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
 405
 406         len += snprintf(buf + len, size - len, "\nLNA Config Attempts:\n");
 407         len += snprintf(buf + len, size - len, "--------------------\n");
 408
 409         len += snprintf(buf + len, size - len, "%30s%15s\n",
 410                         "MAIN", "ALT");
 411         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 412                         "LNA1",
 413                         as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1],
 414                         as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1]);
 415         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 416                         "LNA2",
 417                         as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2],
 418                         as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2]);
 419         len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
 420                         "LNA1 + LNA2",
 421                         as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
 422                         as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_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_MINUS_LNA2],
 426                         as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
 427
 428 exit:
 429         if (len > size)
 430                 len = size;
 431
 432         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 433         kfree(buf);
 434
 435         return retval;
 436 }
 437
 438 static const struct file_operations fops_antenna_diversity = {
 439         .read = read_file_antenna_diversity,
 440         .open = simple_open,
 441         .owner = THIS_MODULE,
 442         .llseek = default_llseek,
 443 };
 444
 445 static ssize_t read_file_dma(struct file *file, char __user *user_buf,
 446                              size_t count, loff_t *ppos)
 447 {
 448         struct ath_softc *sc = file->private_data;
 449         struct ath_hw *ah = sc->sc_ah;
 450         char *buf;
 451         int retval;
 452         unsigned int len = 0;
 453         u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
 454         int i, qcuOffset = 0, dcuOffset = 0;
 455         u32 *qcuBase = &val[0], *dcuBase = &val[4];
 456
 457         buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
 458         if (!buf)
 459                 return -ENOMEM;
 460
 461         ath9k_ps_wakeup(sc);
 462
 463         REG_WRITE_D(ah, AR_MACMISC,
 464                   ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
 465                    (AR_MACMISC_MISC_OBS_BUS_1 <<
 466                     AR_MACMISC_MISC_OBS_BUS_MSB_S)));
 467
 468         len += snprintf(buf + len, DMA_BUF_LEN - len,
 469                         "Raw DMA Debug values:\n");
 470
 471         for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
 472                 if (i % 4 == 0)
 473                         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
 474
 475                 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
 476                 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
 477                                 i, val[i]);
 478         }
 479
 480         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
 481         len += snprintf(buf + len, DMA_BUF_LEN - len,
 482                         "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
 483
 484         for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
 485                 if (i == 8) {
 486                         qcuOffset = 0;
 487                         qcuBase++;
 488                 }
 489
 490                 if (i == 6) {
 491                         dcuOffset = 0;
 492                         dcuBase++;
 493                 }
 494
 495                 len += snprintf(buf + len, DMA_BUF_LEN - len,
 496                         "%2d          %2x      %1x     %2x           %2x\n",
 497                         i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
 498                         (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
 499                         val[2] & (0x7 << (i * 3)) >> (i * 3),
 500                         (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
 501         }
 502
 503         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
 504
 505         len += snprintf(buf + len, DMA_BUF_LEN - len,
 506                 "qcu_stitch state:   %2x    qcu_fetch state:        %2x\n",
 507                 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
 508         len += snprintf(buf + len, DMA_BUF_LEN - len,
 509                 "qcu_complete state: %2x    dcu_complete state:     %2x\n",
 510                 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
 511         len += snprintf(buf + len, DMA_BUF_LEN - len,
 512                 "dcu_arb state:      %2x    dcu_fp state:           %2x\n",
 513                 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
 514         len += snprintf(buf + len, DMA_BUF_LEN - len,
 515                 "chan_idle_dur:     %3d    chan_idle_dur_valid:     %1d\n",
 516                 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
 517         len += snprintf(buf + len, DMA_BUF_LEN - len,
 518                 "txfifo_valid_0:      %1d    txfifo_valid_1:          %1d\n",
 519                 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
 520         len += snprintf(buf + len, DMA_BUF_LEN - len,
 521                 "txfifo_dcu_num_0:   %2d    txfifo_dcu_num_1:       %2d\n",
 522                 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
 523
 524         len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
 525                         REG_READ_D(ah, AR_OBS_BUS_1));
 526         len += snprintf(buf + len, DMA_BUF_LEN - len,
 527                         "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
 528
 529         ath9k_ps_restore(sc);
 530
 531         if (len > DMA_BUF_LEN)
 532                 len = DMA_BUF_LEN;
 533
 534         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 535         kfree(buf);
 536         return retval;
 537 }
 538
 539 static const struct file_operations fops_dma = {
 540         .read = read_file_dma,
 541         .open = simple_open,
 542         .owner = THIS_MODULE,
 543         .llseek = default_llseek,
 544 };
 545
 546
 547 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
 548 {
 549         if (status)
 550                 sc->debug.stats.istats.total++;
 551         if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 552                 if (status & ATH9K_INT_RXLP)
 553                         sc->debug.stats.istats.rxlp++;
 554                 if (status & ATH9K_INT_RXHP)
 555                         sc->debug.stats.istats.rxhp++;
 556                 if (status & ATH9K_INT_BB_WATCHDOG)
 557                         sc->debug.stats.istats.bb_watchdog++;
 558         } else {
 559                 if (status & ATH9K_INT_RX)
 560                         sc->debug.stats.istats.rxok++;
 561         }
 562         if (status & ATH9K_INT_RXEOL)
 563                 sc->debug.stats.istats.rxeol++;
 564         if (status & ATH9K_INT_RXORN)
 565                 sc->debug.stats.istats.rxorn++;
 566         if (status & ATH9K_INT_TX)
 567                 sc->debug.stats.istats.txok++;
 568         if (status & ATH9K_INT_TXURN)
 569                 sc->debug.stats.istats.txurn++;
 570         if (status & ATH9K_INT_RXPHY)
 571                 sc->debug.stats.istats.rxphyerr++;
 572         if (status & ATH9K_INT_RXKCM)
 573                 sc->debug.stats.istats.rx_keycache_miss++;
 574         if (status & ATH9K_INT_SWBA)
 575                 sc->debug.stats.istats.swba++;
 576         if (status & ATH9K_INT_BMISS)
 577                 sc->debug.stats.istats.bmiss++;
 578         if (status & ATH9K_INT_BNR)
 579                 sc->debug.stats.istats.bnr++;
 580         if (status & ATH9K_INT_CST)
 581                 sc->debug.stats.istats.cst++;
 582         if (status & ATH9K_INT_GTT)
 583                 sc->debug.stats.istats.gtt++;
 584         if (status & ATH9K_INT_TIM)
 585                 sc->debug.stats.istats.tim++;
 586         if (status & ATH9K_INT_CABEND)
 587                 sc->debug.stats.istats.cabend++;
 588         if (status & ATH9K_INT_DTIMSYNC)
 589                 sc->debug.stats.istats.dtimsync++;
 590         if (status & ATH9K_INT_DTIM)
 591                 sc->debug.stats.istats.dtim++;
 592         if (status & ATH9K_INT_TSFOOR)
 593                 sc->debug.stats.istats.tsfoor++;
 594         if (status & ATH9K_INT_MCI)
 595                 sc->debug.stats.istats.mci++;
 596         if (status & ATH9K_INT_GENTIMER)
 597                 sc->debug.stats.istats.gen_timer++;
 598 }
 599
 600 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
 601                                    size_t count, loff_t *ppos)
 602 {
 603         struct ath_softc *sc = file->private_data;
 604         unsigned int len = 0;
 605         int rv;
 606         int mxlen = 4000;
 607         char *buf = kmalloc(mxlen, GFP_KERNEL);
 608         if (!buf)
 609                 return -ENOMEM;
 610
 611 #define PR_IS(a, s)                                             \
 612         do {                                                    \
 613                 len += snprintf(buf + len, mxlen - len,         \
 614                                 "%21s: %10u\n", a,              \
 615                                 sc->debug.stats.istats.s);      \
 616         } while (0)
 617
 618         if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 619                 PR_IS("RXLP", rxlp);
 620                 PR_IS("RXHP", rxhp);
 621                 PR_IS("WATHDOG", bb_watchdog);
 622         } else {
 623                 PR_IS("RX", rxok);
 624         }
 625         PR_IS("RXEOL", rxeol);
 626         PR_IS("RXORN", rxorn);
 627         PR_IS("TX", txok);
 628         PR_IS("TXURN", txurn);
 629         PR_IS("MIB", mib);
 630         PR_IS("RXPHY", rxphyerr);
 631         PR_IS("RXKCM", rx_keycache_miss);
 632         PR_IS("SWBA", swba);
 633         PR_IS("BMISS", bmiss);
 634         PR_IS("BNR", bnr);
 635         PR_IS("CST", cst);
 636         PR_IS("GTT", gtt);
 637         PR_IS("TIM", tim);
 638         PR_IS("CABEND", cabend);
 639         PR_IS("DTIMSYNC", dtimsync);
 640         PR_IS("DTIM", dtim);
 641         PR_IS("TSFOOR", tsfoor);
 642         PR_IS("MCI", mci);
 643         PR_IS("GENTIMER", gen_timer);
 644         PR_IS("TOTAL", total);
 645
 646         len += snprintf(buf + len, mxlen - len,
 647                         "SYNC_CAUSE stats:\n");
 648
 649         PR_IS("Sync-All", sync_cause_all);
 650         PR_IS("RTC-IRQ", sync_rtc_irq);
 651         PR_IS("MAC-IRQ", sync_mac_irq);
 652         PR_IS("EEPROM-Illegal-Access", eeprom_illegal_access);
 653         PR_IS("APB-Timeout", apb_timeout);
 654         PR_IS("PCI-Mode-Conflict", pci_mode_conflict);
 655         PR_IS("HOST1-Fatal", host1_fatal);
 656         PR_IS("HOST1-Perr", host1_perr);
 657         PR_IS("TRCV-FIFO-Perr", trcv_fifo_perr);
 658         PR_IS("RADM-CPL-EP", radm_cpl_ep);
 659         PR_IS("RADM-CPL-DLLP-Abort", radm_cpl_dllp_abort);
 660         PR_IS("RADM-CPL-TLP-Abort", radm_cpl_tlp_abort);
 661         PR_IS("RADM-CPL-ECRC-Err", radm_cpl_ecrc_err);
 662         PR_IS("RADM-CPL-Timeout", radm_cpl_timeout);
 663         PR_IS("Local-Bus-Timeout", local_timeout);
 664         PR_IS("PM-Access", pm_access);
 665         PR_IS("MAC-Awake", mac_awake);
 666         PR_IS("MAC-Asleep", mac_asleep);
 667         PR_IS("MAC-Sleep-Access", mac_sleep_access);
 668
 669         if (len > mxlen)
 670                 len = mxlen;
 671
 672         rv = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 673         kfree(buf);
 674         return rv;
 675 }
 676
 677 static const struct file_operations fops_interrupt = {
 678         .read = read_file_interrupt,
 679         .open = simple_open,
 680         .owner = THIS_MODULE,
 681         .llseek = default_llseek,
 682 };
 683
 684 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
 685                               size_t count, loff_t *ppos)
 686 {
 687         struct ath_softc *sc = file->private_data;
 688         char *buf;
 689         unsigned int len = 0, size = 2048;
 690         ssize_t retval = 0;
 691
 692         buf = kzalloc(size, GFP_KERNEL);
 693         if (buf == NULL)
 694                 return -ENOMEM;
 695
 696         len += sprintf(buf, "%30s %10s%10s%10s\n\n",
 697                        "BE", "BK", "VI", "VO");
 698
 699         PR("MPDUs Queued:    ", queued);
 700         PR("MPDUs Completed: ", completed);
 701         PR("MPDUs XRetried:  ", xretries);
 702         PR("Aggregates:      ", a_aggr);
 703         PR("AMPDUs Queued HW:", a_queued_hw);
 704         PR("AMPDUs Queued SW:", a_queued_sw);
 705         PR("AMPDUs Completed:", a_completed);
 706         PR("AMPDUs Retried:  ", a_retries);
 707         PR("AMPDUs XRetried: ", a_xretries);
 708         PR("TXERR Filtered:  ", txerr_filtered);
 709         PR("FIFO Underrun:   ", fifo_underrun);
 710         PR("TXOP Exceeded:   ", xtxop);
 711         PR("TXTIMER Expiry:  ", timer_exp);
 712         PR("DESC CFG Error:  ", desc_cfg_err);
 713         PR("DATA Underrun:   ", data_underrun);
 714         PR("DELIM Underrun:  ", delim_underrun);
 715         PR("TX-Pkts-All:     ", tx_pkts_all);
 716         PR("TX-Bytes-All:    ", tx_bytes_all);
 717         PR("HW-put-tx-buf:   ", puttxbuf);
 718         PR("HW-tx-start:     ", txstart);
 719         PR("HW-tx-proc-desc: ", txprocdesc);
 720         PR("TX-Failed:       ", txfailed);
 721
 722         if (len > size)
 723                 len = size;
 724
 725         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 726         kfree(buf);
 727
 728         return retval;
 729 }
 730
 731 static ssize_t read_file_queues(struct file *file, char __user *user_buf,
 732                                 size_t count, loff_t *ppos)
 733 {
 734         struct ath_softc *sc = file->private_data;
 735         struct ath_txq *txq;
 736         char *buf;
 737         unsigned int len = 0, size = 1024;
 738         ssize_t retval = 0;
 739         int i;
 740         char *qname[4] = {"VO", "VI", "BE", "BK"};
 741
 742         buf = kzalloc(size, GFP_KERNEL);
 743         if (buf == NULL)
 744                 return -ENOMEM;
 745
 746         for (i = 0; i < IEEE80211_NUM_ACS; i++) {
 747                 txq = sc->tx.txq_map[i];
 748                 len += snprintf(buf + len, size - len, "(%s): ", qname[i]);
 749
 750                 ath_txq_lock(sc, txq);
 751
 752                 len += snprintf(buf + len, size - len, "%s: %d ",
 753                                 "qnum", txq->axq_qnum);
 754                 len += snprintf(buf + len, size - len, "%s: %2d ",
 755                                 "qdepth", txq->axq_depth);
 756                 len += snprintf(buf + len, size - len, "%s: %2d ",
 757                                 "ampdu-depth", txq->axq_ampdu_depth);
 758                 len += snprintf(buf + len, size - len, "%s: %3d ",
 759                                 "pending", txq->pending_frames);
 760                 len += snprintf(buf + len, size - len, "%s: %d\n",
 761                                 "stopped", txq->stopped);
 762
 763                 ath_txq_unlock(sc, txq);
 764         }
 765
 766         if (len > size)
 767                 len = size;
 768
 769         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 770         kfree(buf);
 771
 772         return retval;
 773 }
 774
 775 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
 776                               size_t count, loff_t *ppos)
 777 {
 778         struct ath_softc *sc = file->private_data;
 779         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 780         struct ieee80211_hw *hw = sc->hw;
 781         struct ath9k_vif_iter_data iter_data;
 782         char buf[512];
 783         unsigned int len = 0;
 784         ssize_t retval = 0;
 785         unsigned int reg;
 786         u32 rxfilter;
 787
 788         len += snprintf(buf + len, sizeof(buf) - len,
 789                         "BSSID: %pM\n", common->curbssid);
 790         len += snprintf(buf + len, sizeof(buf) - len,
 791                         "BSSID-MASK: %pM\n", common->bssidmask);
 792         len += snprintf(buf + len, sizeof(buf) - len,
 793                         "OPMODE: %s\n", ath_opmode_to_string(sc->sc_ah->opmode));
 794
 795         ath9k_ps_wakeup(sc);
 796         rxfilter = ath9k_hw_getrxfilter(sc->sc_ah);
 797         ath9k_ps_restore(sc);
 798
 799         len += snprintf(buf + len, sizeof(buf) - len,
 800                         "RXFILTER: 0x%x", rxfilter);
 801
 802         if (rxfilter & ATH9K_RX_FILTER_UCAST)
 803                 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
 804         if (rxfilter & ATH9K_RX_FILTER_MCAST)
 805                 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
 806         if (rxfilter & ATH9K_RX_FILTER_BCAST)
 807                 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
 808         if (rxfilter & ATH9K_RX_FILTER_CONTROL)
 809                 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
 810         if (rxfilter & ATH9K_RX_FILTER_BEACON)
 811                 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
 812         if (rxfilter & ATH9K_RX_FILTER_PROM)
 813                 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
 814         if (rxfilter & ATH9K_RX_FILTER_PROBEREQ)
 815                 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
 816         if (rxfilter & ATH9K_RX_FILTER_PHYERR)
 817                 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR");
 818         if (rxfilter & ATH9K_RX_FILTER_MYBEACON)
 819                 len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON");
 820         if (rxfilter & ATH9K_RX_FILTER_COMP_BAR)
 821                 len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
 822         if (rxfilter & ATH9K_RX_FILTER_PSPOLL)
 823                 len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL");
 824         if (rxfilter & ATH9K_RX_FILTER_PHYRADAR)
 825                 len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
 826         if (rxfilter & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
 827                 len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL");
 828         if (rxfilter & ATH9K_RX_FILTER_CONTROL_WRAPPER)
 829                 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL_WRAPPER");
 830
 831         len += snprintf(buf + len, sizeof(buf) - len, "\n");
 832
 833         reg = sc->sc_ah->imask;
 834
 835         len += snprintf(buf + len, sizeof(buf) - len, "INTERRUPT-MASK: 0x%x", reg);
 836
 837         if (reg & ATH9K_INT_SWBA)
 838                 len += snprintf(buf + len, sizeof(buf) - len, " SWBA");
 839         if (reg & ATH9K_INT_BMISS)
 840                 len += snprintf(buf + len, sizeof(buf) - len, " BMISS");
 841         if (reg & ATH9K_INT_CST)
 842                 len += snprintf(buf + len, sizeof(buf) - len, " CST");
 843         if (reg & ATH9K_INT_RX)
 844                 len += snprintf(buf + len, sizeof(buf) - len, " RX");
 845         if (reg & ATH9K_INT_RXHP)
 846                 len += snprintf(buf + len, sizeof(buf) - len, " RXHP");
 847         if (reg & ATH9K_INT_RXLP)
 848                 len += snprintf(buf + len, sizeof(buf) - len, " RXLP");
 849         if (reg & ATH9K_INT_BB_WATCHDOG)
 850                 len += snprintf(buf + len, sizeof(buf) - len, " BB_WATCHDOG");
 851
 852         len += snprintf(buf + len, sizeof(buf) - len, "\n");
 853
 854         ath9k_calculate_iter_data(hw, NULL, &iter_data);
 855
 856         len += snprintf(buf + len, sizeof(buf) - len,
 857                         "VIF-COUNTS: AP: %i STA: %i MESH: %i WDS: %i"
 858                         " ADHOC: %i TOTAL: %hi BEACON-VIF: %hi\n",
 859                         iter_data.naps, iter_data.nstations, iter_data.nmeshes,
 860                         iter_data.nwds, iter_data.nadhocs,
 861                         sc->nvifs, sc->nbcnvifs);
 862
 863         if (len > sizeof(buf))
 864                 len = sizeof(buf);
 865
 866         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 867         return retval;
 868 }
 869
 870 static ssize_t read_file_reset(struct file *file, char __user *user_buf,
 871                                size_t count, loff_t *ppos)
 872 {
 873         struct ath_softc *sc = file->private_data;
 874         char buf[512];
 875         unsigned int len = 0;
 876
 877         len += snprintf(buf + len, sizeof(buf) - len,
 878                         "%17s: %2d\n", "Baseband Hang",
 879                         sc->debug.stats.reset[RESET_TYPE_BB_HANG]);
 880         len += snprintf(buf + len, sizeof(buf) - len,
 881                         "%17s: %2d\n", "Baseband Watchdog",
 882                         sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG]);
 883         len += snprintf(buf + len, sizeof(buf) - len,
 884                         "%17s: %2d\n", "Fatal HW Error",
 885                         sc->debug.stats.reset[RESET_TYPE_FATAL_INT]);
 886         len += snprintf(buf + len, sizeof(buf) - len,
 887                         "%17s: %2d\n", "TX HW error",
 888                         sc->debug.stats.reset[RESET_TYPE_TX_ERROR]);
 889         len += snprintf(buf + len, sizeof(buf) - len,
 890                         "%17s: %2d\n", "TX Path Hang",
 891                         sc->debug.stats.reset[RESET_TYPE_TX_HANG]);
 892         len += snprintf(buf + len, sizeof(buf) - len,
 893                         "%17s: %2d\n", "PLL RX Hang",
 894                         sc->debug.stats.reset[RESET_TYPE_PLL_HANG]);
 895         len += snprintf(buf + len, sizeof(buf) - len,
 896                         "%17s: %2d\n", "MCI Reset",
 897                         sc->debug.stats.reset[RESET_TYPE_MCI]);
 898
 899         if (len > sizeof(buf))
 900                 len = sizeof(buf);
 901
 902         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 903 }
 904
 905 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 906                        struct ath_tx_status *ts, struct ath_txq *txq,
 907                        unsigned int flags)
 908 {
 909         int qnum = txq->axq_qnum;
 910
 911         TX_STAT_INC(qnum, tx_pkts_all);
 912         sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
 913
 914         if (bf_isampdu(bf)) {
 915                 if (flags & ATH_TX_ERROR)
 916                         TX_STAT_INC(qnum, a_xretries);
 917                 else
 918                         TX_STAT_INC(qnum, a_completed);
 919         } else {
 920                 if (ts->ts_status & ATH9K_TXERR_XRETRY)
 921                         TX_STAT_INC(qnum, xretries);
 922                 else
 923                         TX_STAT_INC(qnum, completed);
 924         }
 925
 926         if (ts->ts_status & ATH9K_TXERR_FILT)
 927                 TX_STAT_INC(qnum, txerr_filtered);
 928         if (ts->ts_status & ATH9K_TXERR_FIFO)
 929                 TX_STAT_INC(qnum, fifo_underrun);
 930         if (ts->ts_status & ATH9K_TXERR_XTXOP)
 931                 TX_STAT_INC(qnum, xtxop);
 932         if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
 933                 TX_STAT_INC(qnum, timer_exp);
 934         if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
 935                 TX_STAT_INC(qnum, desc_cfg_err);
 936         if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
 937                 TX_STAT_INC(qnum, data_underrun);
 938         if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
 939                 TX_STAT_INC(qnum, delim_underrun);
 940 }
 941
 942 static const struct file_operations fops_xmit = {
 943         .read = read_file_xmit,
 944         .open = simple_open,
 945         .owner = THIS_MODULE,
 946         .llseek = default_llseek,
 947 };
 948
 949 static const struct file_operations fops_queues = {
 950         .read = read_file_queues,
 951         .open = simple_open,
 952         .owner = THIS_MODULE,
 953         .llseek = default_llseek,
 954 };
 955
 956 static const struct file_operations fops_misc = {
 957         .read = read_file_misc,
 958         .open = simple_open,
 959         .owner = THIS_MODULE,
 960         .llseek = default_llseek,
 961 };
 962
 963 static const struct file_operations fops_reset = {
 964         .read = read_file_reset,
 965         .open = simple_open,
 966         .owner = THIS_MODULE,
 967         .llseek = default_llseek,
 968 };
 969
 970 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 971                               size_t count, loff_t *ppos)
 972 {
 973 #define PHY_ERR(s, p) \
 974         len += snprintf(buf + len, size - len, "%22s : %10u\n", s, \
 975                         sc->debug.stats.rxstats.phy_err_stats[p]);
 976
 977 #define RXS_ERR(s, e)                                       \
 978         do {                                                \
 979                 len += snprintf(buf + len, size - len,      \
 980                                 "%22s : %10u\n", s,         \
 981                                 sc->debug.stats.rxstats.e); \
 982         } while (0)
 983
 984         struct ath_softc *sc = file->private_data;
 985         char *buf;
 986         unsigned int len = 0, size = 1600;
 987         ssize_t retval = 0;
 988
 989         buf = kzalloc(size, GFP_KERNEL);
 990         if (buf == NULL)
 991                 return -ENOMEM;
 992
 993         RXS_ERR("CRC ERR", crc_err);
 994         RXS_ERR("DECRYPT CRC ERR", decrypt_crc_err);
 995         RXS_ERR("PHY ERR", phy_err);
 996         RXS_ERR("MIC ERR", mic_err);
 997         RXS_ERR("PRE-DELIM CRC ERR", pre_delim_crc_err);
 998         RXS_ERR("POST-DELIM CRC ERR", post_delim_crc_err);
 999         RXS_ERR("DECRYPT BUSY ERR", decrypt_busy_err);
1000         RXS_ERR("RX-LENGTH-ERR", rx_len_err);
1001         RXS_ERR("RX-OOM-ERR", rx_oom_err);
1002         RXS_ERR("RX-RATE-ERR", rx_rate_err);
1003         RXS_ERR("RX-TOO-MANY-FRAGS", rx_too_many_frags_err);
1004
1005         PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN);
1006         PHY_ERR("TIMING ERR", ATH9K_PHYERR_TIMING);
1007         PHY_ERR("PARITY ERR", ATH9K_PHYERR_PARITY);
1008         PHY_ERR("RATE ERR", ATH9K_PHYERR_RATE);
1009         PHY_ERR("LENGTH ERR", ATH9K_PHYERR_LENGTH);
1010         PHY_ERR("RADAR ERR", ATH9K_PHYERR_RADAR);
1011         PHY_ERR("SERVICE ERR", ATH9K_PHYERR_SERVICE);
1012         PHY_ERR("TOR ERR", ATH9K_PHYERR_TOR);
1013         PHY_ERR("OFDM-TIMING ERR", ATH9K_PHYERR_OFDM_TIMING);
1014         PHY_ERR("OFDM-SIGNAL-PARITY ERR", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
1015         PHY_ERR("OFDM-RATE ERR", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
1016         PHY_ERR("OFDM-LENGTH ERR", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
1017         PHY_ERR("OFDM-POWER-DROP ERR", ATH9K_PHYERR_OFDM_POWER_DROP);
1018         PHY_ERR("OFDM-SERVICE ERR", ATH9K_PHYERR_OFDM_SERVICE);
1019         PHY_ERR("OFDM-RESTART ERR", ATH9K_PHYERR_OFDM_RESTART);
1020         PHY_ERR("FALSE-RADAR-EXT ERR", ATH9K_PHYERR_FALSE_RADAR_EXT);
1021         PHY_ERR("CCK-TIMING ERR", ATH9K_PHYERR_CCK_TIMING);
1022         PHY_ERR("CCK-HEADER-CRC ERR", ATH9K_PHYERR_CCK_HEADER_CRC);
1023         PHY_ERR("CCK-RATE ERR", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
1024         PHY_ERR("CCK-SERVICE ERR", ATH9K_PHYERR_CCK_SERVICE);
1025         PHY_ERR("CCK-RESTART ERR", ATH9K_PHYERR_CCK_RESTART);
1026         PHY_ERR("CCK-LENGTH ERR", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
1027         PHY_ERR("CCK-POWER-DROP ERR", ATH9K_PHYERR_CCK_POWER_DROP);
1028         PHY_ERR("HT-CRC ERR", ATH9K_PHYERR_HT_CRC_ERROR);
1029         PHY_ERR("HT-LENGTH ERR", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
1030         PHY_ERR("HT-RATE ERR", ATH9K_PHYERR_HT_RATE_ILLEGAL);
1031
1032         RXS_ERR("RX-Pkts-All", rx_pkts_all);
1033         RXS_ERR("RX-Bytes-All", rx_bytes_all);
1034         RXS_ERR("RX-Beacons", rx_beacons);
1035         RXS_ERR("RX-Frags", rx_frags);
1036         RXS_ERR("RX-Spectral", rx_spectral);
1037
1038         if (len > size)
1039                 len = size;
1040
1041         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1042         kfree(buf);
1043
1044         return retval;
1045
1046 #undef RXS_ERR
1047 #undef PHY_ERR
1048 }
1049
1050 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
1051 {
1052 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
1053
1054         RX_STAT_INC(rx_pkts_all);
1055         sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen;
1056
1057         if (rs->rs_status & ATH9K_RXERR_CRC)
1058                 RX_STAT_INC(crc_err);
1059         if (rs->rs_status & ATH9K_RXERR_DECRYPT)
1060                 RX_STAT_INC(decrypt_crc_err);
1061         if (rs->rs_status & ATH9K_RXERR_MIC)
1062                 RX_STAT_INC(mic_err);
1063         if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
1064                 RX_STAT_INC(pre_delim_crc_err);
1065         if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
1066                 RX_STAT_INC(post_delim_crc_err);
1067         if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
1068                 RX_STAT_INC(decrypt_busy_err);
1069
1070         if (rs->rs_status & ATH9K_RXERR_PHY) {
1071                 RX_STAT_INC(phy_err);
1072                 if (rs->rs_phyerr < ATH9K_PHYERR_MAX)
1073                         RX_PHY_ERR_INC(rs->rs_phyerr);
1074         }
1075
1076 #undef RX_PHY_ERR_INC
1077 }
1078
1079 static const struct file_operations fops_recv = {
1080         .read = read_file_recv,
1081         .open = simple_open,
1082         .owner = THIS_MODULE,
1083         .llseek = default_llseek,
1084 };
1085
1086 static ssize_t read_file_spec_scan_ctl(struct file *file, char __user *user_buf,
1087                                        size_t count, loff_t *ppos)
1088 {
1089         struct ath_softc *sc = file->private_data;
1090         char *mode = "";
1091         unsigned int len;
1092
1093         switch (sc->spectral_mode) {
1094         case SPECTRAL_DISABLED:
1095                 mode = "disable";
1096                 break;
1097         case SPECTRAL_BACKGROUND:
1098                 mode = "background";
1099                 break;
1100         case SPECTRAL_CHANSCAN:
1101                 mode = "chanscan";
1102                 break;
1103         case SPECTRAL_MANUAL:
1104                 mode = "manual";
1105                 break;
1106         }
1107         len = strlen(mode);
1108         return simple_read_from_buffer(user_buf, count, ppos, mode, len);
1109 }
1110
1111 static ssize_t write_file_spec_scan_ctl(struct file *file,
1112                                         const char __user *user_buf,
1113                                         size_t count, loff_t *ppos)
1114 {
1115         struct ath_softc *sc = file->private_data;
1116         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1117         char buf[32];
1118         ssize_t len;
1119
1120         len = min(count, sizeof(buf) - 1);
1121         if (copy_from_user(buf, user_buf, len))
1122                 return -EFAULT;
1123
1124         buf[len] = '\0';
1125
1126         if (strncmp("trigger", buf, 7) == 0) {
1127                 ath9k_spectral_scan_trigger(sc->hw);
1128         } else if (strncmp("background", buf, 9) == 0) {
1129                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_BACKGROUND);
1130                 ath_dbg(common, CONFIG, "spectral scan: background mode enabled\n");
1131         } else if (strncmp("chanscan", buf, 8) == 0) {
1132                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_CHANSCAN);
1133                 ath_dbg(common, CONFIG, "spectral scan: channel scan mode enabled\n");
1134         } else if (strncmp("manual", buf, 6) == 0) {
1135                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_MANUAL);
1136                 ath_dbg(common, CONFIG, "spectral scan: manual mode enabled\n");
1137         } else if (strncmp("disable", buf, 7) == 0) {
1138                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_DISABLED);
1139                 ath_dbg(common, CONFIG, "spectral scan: disabled\n");
1140         } else {
1141                 return -EINVAL;
1142         }
1143
1144         return count;
1145 }
1146
1147 static const struct file_operations fops_spec_scan_ctl = {
1148         .read = read_file_spec_scan_ctl,
1149         .write = write_file_spec_scan_ctl,
1150         .open = simple_open,
1151         .owner = THIS_MODULE,
1152         .llseek = default_llseek,
1153 };
1154
1155 static ssize_t read_file_spectral_short_repeat(struct file *file,
1156                                                char __user *user_buf,
1157                                                size_t count, loff_t *ppos)
1158 {
1159         struct ath_softc *sc = file->private_data;
1160         char buf[32];
1161         unsigned int len;
1162
1163         len = sprintf(buf, "%d\n", sc->spec_config.short_repeat);
1164         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1165 }
1166
1167 static ssize_t write_file_spectral_short_repeat(struct file *file,
1168                                                 const char __user *user_buf,
1169                                                 size_t count, loff_t *ppos)
1170 {
1171         struct ath_softc *sc = file->private_data;
1172         unsigned long val;
1173         char buf[32];
1174         ssize_t len;
1175
1176         len = min(count, sizeof(buf) - 1);
1177         if (copy_from_user(buf, user_buf, len))
1178                 return -EFAULT;
1179
1180         buf[len] = '\0';
1181         if (kstrtoul(buf, 0, &val))
1182                 return -EINVAL;
1183
1184         if (val < 0 || val > 1)
1185                 return -EINVAL;
1186
1187         sc->spec_config.short_repeat = val;
1188         return count;
1189 }
1190
1191 static const struct file_operations fops_spectral_short_repeat = {
1192         .read = read_file_spectral_short_repeat,
1193         .write = write_file_spectral_short_repeat,
1194         .open = simple_open,
1195         .owner = THIS_MODULE,
1196         .llseek = default_llseek,
1197 };
1198
1199 static ssize_t read_file_spectral_count(struct file *file,
1200                                         char __user *user_buf,
1201                                         size_t count, loff_t *ppos)
1202 {
1203         struct ath_softc *sc = file->private_data;
1204         char buf[32];
1205         unsigned int len;
1206
1207         len = sprintf(buf, "%d\n", sc->spec_config.count);
1208         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1209 }
1210
1211 static ssize_t write_file_spectral_count(struct file *file,
1212                                          const char __user *user_buf,
1213                                          size_t count, loff_t *ppos)
1214 {
1215         struct ath_softc *sc = file->private_data;
1216         unsigned long val;
1217         char buf[32];
1218         ssize_t len;
1219
1220         len = min(count, sizeof(buf) - 1);
1221         if (copy_from_user(buf, user_buf, len))
1222                 return -EFAULT;
1223
1224         buf[len] = '\0';
1225         if (kstrtoul(buf, 0, &val))
1226                 return -EINVAL;
1227
1228         if (val < 0 || val > 255)
1229                 return -EINVAL;
1230
1231         sc->spec_config.count = val;
1232         return count;
1233 }
1234
1235 static const struct file_operations fops_spectral_count = {
1236         .read = read_file_spectral_count,
1237         .write = write_file_spectral_count,
1238         .open = simple_open,
1239         .owner = THIS_MODULE,
1240         .llseek = default_llseek,
1241 };
1242
1243 static ssize_t read_file_spectral_period(struct file *file,
1244                                          char __user *user_buf,
1245                                          size_t count, loff_t *ppos)
1246 {
1247         struct ath_softc *sc = file->private_data;
1248         char buf[32];
1249         unsigned int len;
1250
1251         len = sprintf(buf, "%d\n", sc->spec_config.period);
1252         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1253 }
1254
1255 static ssize_t write_file_spectral_period(struct file *file,
1256                                           const char __user *user_buf,
1257                                           size_t count, loff_t *ppos)
1258 {
1259         struct ath_softc *sc = file->private_data;
1260         unsigned long val;
1261         char buf[32];
1262         ssize_t len;
1263
1264         len = min(count, sizeof(buf) - 1);
1265         if (copy_from_user(buf, user_buf, len))
1266                 return -EFAULT;
1267
1268         buf[len] = '\0';
1269         if (kstrtoul(buf, 0, &val))
1270                 return -EINVAL;
1271
1272         if (val < 0 || val > 255)
1273                 return -EINVAL;
1274
1275         sc->spec_config.period = val;
1276         return count;
1277 }
1278
1279 static const struct file_operations fops_spectral_period = {
1280         .read = read_file_spectral_period,
1281         .write = write_file_spectral_period,
1282         .open = simple_open,
1283         .owner = THIS_MODULE,
1284         .llseek = default_llseek,
1285 };
1286
1287 static ssize_t read_file_spectral_fft_period(struct file *file,
1288                                              char __user *user_buf,
1289                                              size_t count, loff_t *ppos)
1290 {
1291         struct ath_softc *sc = file->private_data;
1292         char buf[32];
1293         unsigned int len;
1294
1295         len = sprintf(buf, "%d\n", sc->spec_config.fft_period);
1296         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1297 }
1298
1299 static ssize_t write_file_spectral_fft_period(struct file *file,
1300                                               const char __user *user_buf,
1301                                               size_t count, loff_t *ppos)
1302 {
1303         struct ath_softc *sc = file->private_data;
1304         unsigned long val;
1305         char buf[32];
1306         ssize_t len;
1307
1308         len = min(count, sizeof(buf) - 1);
1309         if (copy_from_user(buf, user_buf, len))
1310                 return -EFAULT;
1311
1312         buf[len] = '\0';
1313         if (kstrtoul(buf, 0, &val))
1314                 return -EINVAL;
1315
1316         if (val < 0 || val > 15)
1317                 return -EINVAL;
1318
1319         sc->spec_config.fft_period = val;
1320         return count;
1321 }
1322
1323 static const struct file_operations fops_spectral_fft_period = {
1324         .read = read_file_spectral_fft_period,
1325         .write = write_file_spectral_fft_period,
1326         .open = simple_open,
1327         .owner = THIS_MODULE,
1328         .llseek = default_llseek,
1329 };
1330
1331 static struct dentry *create_buf_file_handler(const char *filename,
1332                                               struct dentry *parent,
1333                                               umode_t mode,
1334                                               struct rchan_buf *buf,
1335                                               int *is_global)
1336 {
1337         struct dentry *buf_file;
1338
1339         buf_file = debugfs_create_file(filename, mode, parent, buf,
1340                                        &relay_file_operations);
1341         *is_global = 1;
1342         return buf_file;
1343 }
1344
1345 static int remove_buf_file_handler(struct dentry *dentry)
1346 {
1347         debugfs_remove(dentry);
1348
1349         return 0;
1350 }
1351
1352 void ath_debug_send_fft_sample(struct ath_softc *sc,
1353                                struct fft_sample_tlv *fft_sample_tlv)
1354 {
1355         int length;
1356         if (!sc->rfs_chan_spec_scan)
1357                 return;
1358
1359         length = __be16_to_cpu(fft_sample_tlv->length) +
1360                  sizeof(*fft_sample_tlv);
1361         relay_write(sc->rfs_chan_spec_scan, fft_sample_tlv, length);
1362 }
1363
1364 static struct rchan_callbacks rfs_spec_scan_cb = {
1365         .create_buf_file = create_buf_file_handler,
1366         .remove_buf_file = remove_buf_file_handler,
1367 };
1368
1369
1370 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
1371                                 size_t count, loff_t *ppos)
1372 {
1373         struct ath_softc *sc = file->private_data;
1374         char buf[32];
1375         unsigned int len;
1376
1377         len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
1378         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1379 }
1380
1381 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
1382                              size_t count, loff_t *ppos)
1383 {
1384         struct ath_softc *sc = file->private_data;
1385         unsigned long regidx;
1386         char buf[32];
1387         ssize_t len;
1388
1389         len = min(count, sizeof(buf) - 1);
1390         if (copy_from_user(buf, user_buf, len))
1391                 return -EFAULT;
1392
1393         buf[len] = '\0';
1394         if (kstrtoul(buf, 0, &regidx))
1395                 return -EINVAL;
1396
1397         sc->debug.regidx = regidx;
1398         return count;
1399 }
1400
1401 static const struct file_operations fops_regidx = {
1402         .read = read_file_regidx,
1403         .write = write_file_regidx,
1404         .open = simple_open,
1405         .owner = THIS_MODULE,
1406         .llseek = default_llseek,
1407 };
1408
1409 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
1410                              size_t count, loff_t *ppos)
1411 {
1412         struct ath_softc *sc = file->private_data;
1413         struct ath_hw *ah = sc->sc_ah;
1414         char buf[32];
1415         unsigned int len;
1416         u32 regval;
1417
1418         ath9k_ps_wakeup(sc);
1419         regval = REG_READ_D(ah, sc->debug.regidx);
1420         ath9k_ps_restore(sc);
1421         len = sprintf(buf, "0x%08x\n", regval);
1422         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1423 }
1424
1425 static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
1426                              size_t count, loff_t *ppos)
1427 {
1428         struct ath_softc *sc = file->private_data;
1429         struct ath_hw *ah = sc->sc_ah;
1430         unsigned long regval;
1431         char buf[32];
1432         ssize_t len;
1433
1434         len = min(count, sizeof(buf) - 1);
1435         if (copy_from_user(buf, user_buf, len))
1436                 return -EFAULT;
1437
1438         buf[len] = '\0';
1439         if (kstrtoul(buf, 0, &regval))
1440                 return -EINVAL;
1441
1442         ath9k_ps_wakeup(sc);
1443         REG_WRITE_D(ah, sc->debug.regidx, regval);
1444         ath9k_ps_restore(sc);
1445         return count;
1446 }
1447
1448 static const struct file_operations fops_regval = {
1449         .read = read_file_regval,
1450         .write = write_file_regval,
1451         .open = simple_open,
1452         .owner = THIS_MODULE,
1453         .llseek = default_llseek,
1454 };
1455
1456 #define REGDUMP_LINE_SIZE       20
1457
1458 static int open_file_regdump(struct inode *inode, struct file *file)
1459 {
1460         struct ath_softc *sc = inode->i_private;
1461         unsigned int len = 0;
1462         u8 *buf;
1463         int i;
1464         unsigned long num_regs, regdump_len, max_reg_offset;
1465
1466         max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x16bd4 : 0xb500;
1467         num_regs = max_reg_offset / 4 + 1;
1468         regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
1469         buf = vmalloc(regdump_len);
1470         if (!buf)
1471                 return -ENOMEM;
1472
1473         ath9k_ps_wakeup(sc);
1474         for (i = 0; i < num_regs; i++)
1475                 len += scnprintf(buf + len, regdump_len - len,
1476                         "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
1477         ath9k_ps_restore(sc);
1478
1479         file->private_data = buf;
1480
1481         return 0;
1482 }
1483
1484 static const struct file_operations fops_regdump = {
1485         .open = open_file_regdump,
1486         .read = ath9k_debugfs_read_buf,
1487         .release = ath9k_debugfs_release_buf,
1488         .owner = THIS_MODULE,
1489         .llseek = default_llseek,/* read accesses f_pos */
1490 };
1491
1492 static ssize_t read_file_dump_nfcal(struct file *file, char __user *user_buf,
1493                                     size_t count, loff_t *ppos)
1494 {
1495         struct ath_softc *sc = file->private_data;
1496         struct ath_hw *ah = sc->sc_ah;
1497         struct ath9k_nfcal_hist *h = sc->caldata.nfCalHist;
1498         struct ath_common *common = ath9k_hw_common(ah);
1499         struct ieee80211_conf *conf = &common->hw->conf;
1500         u32 len = 0, size = 1500;
1501         u32 i, j;
1502         ssize_t retval = 0;
1503         char *buf;
1504         u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
1505         u8 nread;
1506
1507         buf = kzalloc(size, GFP_KERNEL);
1508         if (!buf)
1509                 return -ENOMEM;
1510
1511         len += snprintf(buf + len, size - len,
1512                         "Channel Noise Floor : %d\n", ah->noise);
1513         len += snprintf(buf + len, size - len,
1514                         "Chain | privNF | # Readings | NF Readings\n");
1515         for (i = 0; i < NUM_NF_READINGS; i++) {
1516                 if (!(chainmask & (1 << i)) ||
1517                     ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
1518                         continue;
1519
1520                 nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount;
1521                 len += snprintf(buf + len, size - len, " %d\t %d\t %d\t\t",
1522                                 i, h[i].privNF, nread);
1523                 for (j = 0; j < nread; j++)
1524                         len += snprintf(buf + len, size - len,
1525                                         " %d", h[i].nfCalBuffer[j]);
1526                 len += snprintf(buf + len, size - len, "\n");
1527         }
1528
1529         if (len > size)
1530                 len = size;
1531
1532         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1533         kfree(buf);
1534
1535         return retval;
1536 }
1537
1538 static const struct file_operations fops_dump_nfcal = {
1539         .read = read_file_dump_nfcal,
1540         .open = simple_open,
1541         .owner = THIS_MODULE,
1542         .llseek = default_llseek,
1543 };
1544
1545 static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
1546                                      size_t count, loff_t *ppos)
1547 {
1548         struct ath_softc *sc = file->private_data;
1549         struct ath_hw *ah = sc->sc_ah;
1550         u32 len = 0, size = 1500;
1551         ssize_t retval = 0;
1552         char *buf;
1553
1554         buf = kzalloc(size, GFP_KERNEL);
1555         if (!buf)
1556                 return -ENOMEM;
1557
1558         len = ah->eep_ops->dump_eeprom(ah, true, buf, len, size);
1559
1560         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1561         kfree(buf);
1562
1563         return retval;
1564 }
1565
1566 static const struct file_operations fops_base_eeprom = {
1567         .read = read_file_base_eeprom,
1568         .open = simple_open,
1569         .owner = THIS_MODULE,
1570         .llseek = default_llseek,
1571 };
1572
1573 static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf,
1574                                       size_t count, loff_t *ppos)
1575 {
1576         struct ath_softc *sc = file->private_data;
1577         struct ath_hw *ah = sc->sc_ah;
1578         u32 len = 0, size = 6000;
1579         char *buf;
1580         size_t retval;
1581
1582         buf = kzalloc(size, GFP_KERNEL);
1583         if (buf == NULL)
1584                 return -ENOMEM;
1585
1586         len = ah->eep_ops->dump_eeprom(ah, false, buf, len, size);
1587
1588         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1589         kfree(buf);
1590
1591         return retval;
1592 }
1593
1594 static const struct file_operations fops_modal_eeprom = {
1595         .read = read_file_modal_eeprom,
1596         .open = simple_open,
1597         .owner = THIS_MODULE,
1598         .llseek = default_llseek,
1599 };
1600
1601 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1602 static ssize_t read_file_btcoex(struct file *file, char __user *user_buf,
1603                                 size_t count, loff_t *ppos)
1604 {
1605         struct ath_softc *sc = file->private_data;
1606         u32 len = 0, size = 1500;
1607         char *buf;
1608         size_t retval;
1609
1610         buf = kzalloc(size, GFP_KERNEL);
1611         if (buf == NULL)
1612                 return -ENOMEM;
1613
1614         if (!sc->sc_ah->common.btcoex_enabled) {
1615                 len = snprintf(buf, size, "%s\n",
1616                                "BTCOEX is disabled");
1617                 goto exit;
1618         }
1619
1620         len = ath9k_dump_btcoex(sc, buf, size);
1621 exit:
1622         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1623         kfree(buf);
1624
1625         return retval;
1626 }
1627
1628 static const struct file_operations fops_btcoex = {
1629         .read = read_file_btcoex,
1630         .open = simple_open,
1631         .owner = THIS_MODULE,
1632         .llseek = default_llseek,
1633 };
1634 #endif
1635
1636 static ssize_t read_file_node_stat(struct file *file, char __user *user_buf,
1637                                    size_t count, loff_t *ppos)
1638 {
1639         struct ath_node *an = file->private_data;
1640         struct ath_softc *sc = an->sc;
1641         struct ath_atx_tid *tid;
1642         struct ath_atx_ac *ac;
1643         struct ath_txq *txq;
1644         u32 len = 0, size = 4096;
1645         char *buf;
1646         size_t retval;
1647         int tidno, acno;
1648
1649         buf = kzalloc(size, GFP_KERNEL);
1650         if (buf == NULL)
1651                 return -ENOMEM;
1652
1653         if (!an->sta->ht_cap.ht_supported) {
1654                 len = snprintf(buf, size, "%s\n",
1655                                "HT not supported");
1656                 goto exit;
1657         }
1658
1659         len = snprintf(buf, size, "Max-AMPDU: %d\n",
1660                        an->maxampdu);
1661         len += snprintf(buf + len, size - len, "MPDU Density: %d\n\n",
1662                         an->mpdudensity);
1663
1664         len += snprintf(buf + len, size - len,
1665                         "%2s%7s\n", "AC", "SCHED");
1666
1667         for (acno = 0, ac = &an->ac[acno];
1668              acno < IEEE80211_NUM_ACS; acno++, ac++) {
1669                 txq = ac->txq;
1670                 ath_txq_lock(sc, txq);
1671                 len += snprintf(buf + len, size - len,
1672                                 "%2d%7d\n",
1673                                 acno, ac->sched);
1674                 ath_txq_unlock(sc, txq);
1675         }
1676
1677         len += snprintf(buf + len, size - len,
1678                         "\n%3s%11s%10s%10s%10s%10s%9s%6s%8s\n",
1679                         "TID", "SEQ_START", "SEQ_NEXT", "BAW_SIZE",
1680                         "BAW_HEAD", "BAW_TAIL", "BAR_IDX", "SCHED", "PAUSED");
1681
1682         for (tidno = 0, tid = &an->tid[tidno];
1683              tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
1684                 txq = tid->ac->txq;
1685                 ath_txq_lock(sc, txq);
1686                 len += snprintf(buf + len, size - len,
1687                                 "%3d%11d%10d%10d%10d%10d%9d%6d%8d\n",
1688                                 tid->tidno, tid->seq_start, tid->seq_next,
1689                                 tid->baw_size, tid->baw_head, tid->baw_tail,
1690                                 tid->bar_index, tid->sched, tid->paused);
1691                 ath_txq_unlock(sc, txq);
1692         }
1693 exit:
1694         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1695         kfree(buf);
1696
1697         return retval;
1698 }
1699
1700 static const struct file_operations fops_node_stat = {
1701         .read = read_file_node_stat,
1702         .open = simple_open,
1703         .owner = THIS_MODULE,
1704         .llseek = default_llseek,
1705 };
1706
1707 void ath9k_sta_add_debugfs(struct ieee80211_hw *hw,
1708                            struct ieee80211_vif *vif,
1709                            struct ieee80211_sta *sta,
1710                            struct dentry *dir)
1711 {
1712         struct ath_node *an = (struct ath_node *)sta->drv_priv;
1713         an->node_stat = debugfs_create_file("node_stat", S_IRUGO,
1714                                             dir, an, &fops_node_stat);
1715 }
1716
1717 void ath9k_sta_remove_debugfs(struct ieee80211_hw *hw,
1718                               struct ieee80211_vif *vif,
1719                               struct ieee80211_sta *sta,
1720                               struct dentry *dir)
1721 {
1722         struct ath_node *an = (struct ath_node *)sta->drv_priv;
1723         debugfs_remove(an->node_stat);
1724 }
1725
1726 /* Ethtool support for get-stats */
1727
1728 #define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
1729 static const char ath9k_gstrings_stats[][ETH_GSTRING_LEN] = {
1730         "tx_pkts_nic",
1731         "tx_bytes_nic",
1732         "rx_pkts_nic",
1733         "rx_bytes_nic",
1734         AMKSTR(d_tx_pkts),
1735         AMKSTR(d_tx_bytes),
1736         AMKSTR(d_tx_mpdus_queued),
1737         AMKSTR(d_tx_mpdus_completed),
1738         AMKSTR(d_tx_mpdu_xretries),
1739         AMKSTR(d_tx_aggregates),
1740         AMKSTR(d_tx_ampdus_queued_hw),
1741         AMKSTR(d_tx_ampdus_queued_sw),
1742         AMKSTR(d_tx_ampdus_completed),
1743         AMKSTR(d_tx_ampdu_retries),
1744         AMKSTR(d_tx_ampdu_xretries),
1745         AMKSTR(d_tx_fifo_underrun),
1746         AMKSTR(d_tx_op_exceeded),
1747         AMKSTR(d_tx_timer_expiry),
1748         AMKSTR(d_tx_desc_cfg_err),
1749         AMKSTR(d_tx_data_underrun),
1750         AMKSTR(d_tx_delim_underrun),
1751         "d_rx_crc_err",
1752         "d_rx_decrypt_crc_err",
1753         "d_rx_phy_err",
1754         "d_rx_mic_err",
1755         "d_rx_pre_delim_crc_err",
1756         "d_rx_post_delim_crc_err",
1757         "d_rx_decrypt_busy_err",
1758
1759         "d_rx_phyerr_radar",
1760         "d_rx_phyerr_ofdm_timing",
1761         "d_rx_phyerr_cck_timing",
1762
1763 };
1764 #define ATH9K_SSTATS_LEN ARRAY_SIZE(ath9k_gstrings_stats)
1765
1766 void ath9k_get_et_strings(struct ieee80211_hw *hw,
1767                           struct ieee80211_vif *vif,
1768                           u32 sset, u8 *data)
1769 {
1770         if (sset == ETH_SS_STATS)
1771                 memcpy(data, *ath9k_gstrings_stats,
1772                        sizeof(ath9k_gstrings_stats));
1773 }
1774
1775 int ath9k_get_et_sset_count(struct ieee80211_hw *hw,
1776                             struct ieee80211_vif *vif, int sset)
1777 {
1778         if (sset == ETH_SS_STATS)
1779                 return ATH9K_SSTATS_LEN;
1780         return 0;
1781 }
1782
1783 #define AWDATA(elem)                                                    \
1784         do {                                                            \
1785                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].elem; \
1786                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].elem; \
1787                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].elem; \
1788                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].elem; \
1789         } while (0)
1790
1791 #define AWDATA_RX(elem)                                         \
1792         do {                                                    \
1793                 data[i++] = sc->debug.stats.rxstats.elem;       \
1794         } while (0)
1795
1796 void ath9k_get_et_stats(struct ieee80211_hw *hw,
1797                         struct ieee80211_vif *vif,
1798                         struct ethtool_stats *stats, u64 *data)
1799 {
1800         struct ath_softc *sc = hw->priv;
1801         int i = 0;
1802
1803         data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_pkts_all +
1804                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_pkts_all +
1805                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_pkts_all +
1806                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_pkts_all);
1807         data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_bytes_all +
1808                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_bytes_all +
1809                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_bytes_all +
1810                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_bytes_all);
1811         AWDATA_RX(rx_pkts_all);
1812         AWDATA_RX(rx_bytes_all);
1813
1814         AWDATA(tx_pkts_all);
1815         AWDATA(tx_bytes_all);
1816         AWDATA(queued);
1817         AWDATA(completed);
1818         AWDATA(xretries);
1819         AWDATA(a_aggr);
1820         AWDATA(a_queued_hw);
1821         AWDATA(a_queued_sw);
1822         AWDATA(a_completed);
1823         AWDATA(a_retries);
1824         AWDATA(a_xretries);
1825         AWDATA(fifo_underrun);
1826         AWDATA(xtxop);
1827         AWDATA(timer_exp);
1828         AWDATA(desc_cfg_err);
1829         AWDATA(data_underrun);
1830         AWDATA(delim_underrun);
1831
1832         AWDATA_RX(crc_err);
1833         AWDATA_RX(decrypt_crc_err);
1834         AWDATA_RX(phy_err);
1835         AWDATA_RX(mic_err);
1836         AWDATA_RX(pre_delim_crc_err);
1837         AWDATA_RX(post_delim_crc_err);
1838         AWDATA_RX(decrypt_busy_err);
1839
1840         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_RADAR]);
1841         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_OFDM_TIMING]);
1842         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_CCK_TIMING]);
1843
1844         WARN_ON(i != ATH9K_SSTATS_LEN);
1845 }
1846
1847 void ath9k_deinit_debug(struct ath_softc *sc)
1848 {
1849         if (config_enabled(CONFIG_ATH9K_DEBUGFS) && sc->rfs_chan_spec_scan) {
1850                 relay_close(sc->rfs_chan_spec_scan);
1851                 sc->rfs_chan_spec_scan = NULL;
1852         }
1853 }
1854
1855 int ath9k_init_debug(struct ath_hw *ah)
1856 {
1857         struct ath_common *common = ath9k_hw_common(ah);
1858         struct ath_softc *sc = (struct ath_softc *) common->priv;
1859
1860         sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
1861                                                    sc->hw->wiphy->debugfsdir);
1862         if (!sc->debug.debugfs_phy)
1863                 return -ENOMEM;
1864
1865 #ifdef CONFIG_ATH_DEBUG
1866         debugfs_create_file("debug", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1867                             sc, &fops_debug);
1868 #endif
1869
1870         ath9k_dfs_init_debug(sc);
1871
1872         debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
1873                             &fops_dma);
1874         debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc,
1875                             &fops_interrupt);
1876         debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc,
1877                             &fops_xmit);
1878         debugfs_create_file("queues", S_IRUSR, sc->debug.debugfs_phy, sc,
1879                             &fops_queues);
1880         debugfs_create_u32("qlen_bk", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1881                            &sc->tx.txq_max_pending[IEEE80211_AC_BK]);
1882         debugfs_create_u32("qlen_be", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1883                            &sc->tx.txq_max_pending[IEEE80211_AC_BE]);
1884         debugfs_create_u32("qlen_vi", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1885                            &sc->tx.txq_max_pending[IEEE80211_AC_VI]);
1886         debugfs_create_u32("qlen_vo", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1887                            &sc->tx.txq_max_pending[IEEE80211_AC_VO]);
1888         debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc,
1889                             &fops_misc);
1890         debugfs_create_file("reset", S_IRUSR, sc->debug.debugfs_phy, sc,
1891                             &fops_reset);
1892         debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc,
1893                             &fops_recv);
1894         debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
1895                             sc->debug.debugfs_phy, sc, &fops_rx_chainmask);
1896         debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
1897                             sc->debug.debugfs_phy, sc, &fops_tx_chainmask);
1898         debugfs_create_file("ani", S_IRUSR | S_IWUSR,
1899                             sc->debug.debugfs_phy, sc, &fops_ani);
1900         debugfs_create_bool("paprd", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1901                             &sc->sc_ah->config.enable_paprd);
1902         debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1903                             sc, &fops_regidx);
1904         debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1905                             sc, &fops_regval);
1906         debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
1907                             sc->debug.debugfs_phy,
1908                             &ah->config.cwm_ignore_extcca);
1909         debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc,
1910                             &fops_regdump);
1911         debugfs_create_file("dump_nfcal", S_IRUSR, sc->debug.debugfs_phy, sc,
1912                             &fops_dump_nfcal);
1913         debugfs_create_file("base_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
1914                             &fops_base_eeprom);
1915         debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
1916                             &fops_modal_eeprom);
1917         sc->rfs_chan_spec_scan = relay_open("spectral_scan",
1918                                             sc->debug.debugfs_phy,
1919                                             1024, 256, &rfs_spec_scan_cb,
1920                                             NULL);
1921         debugfs_create_file("spectral_scan_ctl", S_IRUSR | S_IWUSR,
1922                             sc->debug.debugfs_phy, sc,
1923                             &fops_spec_scan_ctl);
1924         debugfs_create_file("spectral_short_repeat", S_IRUSR | S_IWUSR,
1925                             sc->debug.debugfs_phy, sc,
1926                             &fops_spectral_short_repeat);
1927         debugfs_create_file("spectral_count", S_IRUSR | S_IWUSR,
1928                             sc->debug.debugfs_phy, sc, &fops_spectral_count);
1929         debugfs_create_file("spectral_period", S_IRUSR | S_IWUSR,
1930                             sc->debug.debugfs_phy, sc, &fops_spectral_period);
1931         debugfs_create_file("spectral_fft_period", S_IRUSR | S_IWUSR,
1932                             sc->debug.debugfs_phy, sc,
1933                             &fops_spectral_fft_period);
1934         debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
1935                            sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
1936         debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
1937                            sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
1938         debugfs_create_file("bt_ant_diversity", S_IRUSR | S_IWUSR,
1939                             sc->debug.debugfs_phy, sc, &fops_bt_ant_diversity);
1940         debugfs_create_file("antenna_diversity", S_IRUSR,
1941                             sc->debug.debugfs_phy, sc, &fops_antenna_diversity);
1942 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1943         debugfs_create_file("btcoex", S_IRUSR, sc->debug.debugfs_phy, sc,
1944                             &fops_btcoex);
1945 #endif
1946         return 0;
1947 }