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_disable_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         char buf[32];
 182         unsigned int len;
 183
 184         len = sprintf(buf, "%d\n", common->disable_ani);
 185         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 186 }
 187
 188 static ssize_t write_file_disable_ani(struct file *file,
 189                                       const char __user *user_buf,
 190                                       size_t count, loff_t *ppos)
 191 {
 192         struct ath_softc *sc = file->private_data;
 193         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 194         unsigned long disable_ani;
 195         char buf[32];
 196         ssize_t len;
 197
 198         len = min(count, sizeof(buf) - 1);
 199         if (copy_from_user(buf, user_buf, len))
 200                 return -EFAULT;
 201
 202         buf[len] = '\0';
 203         if (kstrtoul(buf, 0, &disable_ani))
 204                 return -EINVAL;
 205
 206         common->disable_ani = !!disable_ani;
 207
 208         if (disable_ani) {
 209                 clear_bit(SC_OP_ANI_RUN, &sc->sc_flags);
 210                 ath_stop_ani(sc);
 211         } else {
 212                 ath_check_ani(sc);
 213         }
 214
 215         return count;
 216 }
 217
 218 static const struct file_operations fops_disable_ani = {
 219         .read = read_file_disable_ani,
 220         .write = write_file_disable_ani,
 221         .open = simple_open,
 222         .owner = THIS_MODULE,
 223         .llseek = default_llseek,
 224 };
 225
 226 static ssize_t read_file_ant_diversity(struct file *file, char __user *user_buf,
 227                                        size_t count, loff_t *ppos)
 228 {
 229         struct ath_softc *sc = file->private_data;
 230         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 231         char buf[32];
 232         unsigned int len;
 233
 234         len = sprintf(buf, "%d\n", common->antenna_diversity);
 235         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 236 }
 237
 238 static ssize_t write_file_ant_diversity(struct file *file,
 239                                         const char __user *user_buf,
 240                                         size_t count, loff_t *ppos)
 241 {
 242         struct ath_softc *sc = file->private_data;
 243         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 244         unsigned long antenna_diversity;
 245         char buf[32];
 246         ssize_t len;
 247
 248         len = min(count, sizeof(buf) - 1);
 249         if (copy_from_user(buf, user_buf, len))
 250                 return -EFAULT;
 251
 252         if (!AR_SREV_9565(sc->sc_ah))
 253                 goto exit;
 254
 255         buf[len] = '\0';
 256         if (kstrtoul(buf, 0, &antenna_diversity))
 257                 return -EINVAL;
 258
 259         common->antenna_diversity = !!antenna_diversity;
 260         ath9k_ps_wakeup(sc);
 261         ath_ant_comb_update(sc);
 262         ath_dbg(common, CONFIG, "Antenna diversity: %d\n",
 263                 common->antenna_diversity);
 264         ath9k_ps_restore(sc);
 265 exit:
 266         return count;
 267 }
 268
 269 static const struct file_operations fops_ant_diversity = {
 270         .read = read_file_ant_diversity,
 271         .write = write_file_ant_diversity,
 272         .open = simple_open,
 273         .owner = THIS_MODULE,
 274         .llseek = default_llseek,
 275 };
 276
 277 static ssize_t read_file_dma(struct file *file, char __user *user_buf,
 278                              size_t count, loff_t *ppos)
 279 {
 280         struct ath_softc *sc = file->private_data;
 281         struct ath_hw *ah = sc->sc_ah;
 282         char *buf;
 283         int retval;
 284         unsigned int len = 0;
 285         u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
 286         int i, qcuOffset = 0, dcuOffset = 0;
 287         u32 *qcuBase = &val[0], *dcuBase = &val[4];
 288
 289         buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
 290         if (!buf)
 291                 return -ENOMEM;
 292
 293         ath9k_ps_wakeup(sc);
 294
 295         REG_WRITE_D(ah, AR_MACMISC,
 296                   ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
 297                    (AR_MACMISC_MISC_OBS_BUS_1 <<
 298                     AR_MACMISC_MISC_OBS_BUS_MSB_S)));
 299
 300         len += snprintf(buf + len, DMA_BUF_LEN - len,
 301                         "Raw DMA Debug values:\n");
 302
 303         for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
 304                 if (i % 4 == 0)
 305                         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
 306
 307                 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
 308                 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
 309                                 i, val[i]);
 310         }
 311
 312         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
 313         len += snprintf(buf + len, DMA_BUF_LEN - len,
 314                         "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
 315
 316         for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
 317                 if (i == 8) {
 318                         qcuOffset = 0;
 319                         qcuBase++;
 320                 }
 321
 322                 if (i == 6) {
 323                         dcuOffset = 0;
 324                         dcuBase++;
 325                 }
 326
 327                 len += snprintf(buf + len, DMA_BUF_LEN - len,
 328                         "%2d          %2x      %1x     %2x           %2x\n",
 329                         i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
 330                         (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
 331                         val[2] & (0x7 << (i * 3)) >> (i * 3),
 332                         (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
 333         }
 334
 335         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
 336
 337         len += snprintf(buf + len, DMA_BUF_LEN - len,
 338                 "qcu_stitch state:   %2x    qcu_fetch state:        %2x\n",
 339                 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
 340         len += snprintf(buf + len, DMA_BUF_LEN - len,
 341                 "qcu_complete state: %2x    dcu_complete state:     %2x\n",
 342                 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
 343         len += snprintf(buf + len, DMA_BUF_LEN - len,
 344                 "dcu_arb state:      %2x    dcu_fp state:           %2x\n",
 345                 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
 346         len += snprintf(buf + len, DMA_BUF_LEN - len,
 347                 "chan_idle_dur:     %3d    chan_idle_dur_valid:     %1d\n",
 348                 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
 349         len += snprintf(buf + len, DMA_BUF_LEN - len,
 350                 "txfifo_valid_0:      %1d    txfifo_valid_1:          %1d\n",
 351                 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
 352         len += snprintf(buf + len, DMA_BUF_LEN - len,
 353                 "txfifo_dcu_num_0:   %2d    txfifo_dcu_num_1:       %2d\n",
 354                 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
 355
 356         len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
 357                         REG_READ_D(ah, AR_OBS_BUS_1));
 358         len += snprintf(buf + len, DMA_BUF_LEN - len,
 359                         "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
 360
 361         ath9k_ps_restore(sc);
 362
 363         if (len > DMA_BUF_LEN)
 364                 len = DMA_BUF_LEN;
 365
 366         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 367         kfree(buf);
 368         return retval;
 369 }
 370
 371 static const struct file_operations fops_dma = {
 372         .read = read_file_dma,
 373         .open = simple_open,
 374         .owner = THIS_MODULE,
 375         .llseek = default_llseek,
 376 };
 377
 378
 379 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
 380 {
 381         if (status)
 382                 sc->debug.stats.istats.total++;
 383         if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 384                 if (status & ATH9K_INT_RXLP)
 385                         sc->debug.stats.istats.rxlp++;
 386                 if (status & ATH9K_INT_RXHP)
 387                         sc->debug.stats.istats.rxhp++;
 388                 if (status & ATH9K_INT_BB_WATCHDOG)
 389                         sc->debug.stats.istats.bb_watchdog++;
 390         } else {
 391                 if (status & ATH9K_INT_RX)
 392                         sc->debug.stats.istats.rxok++;
 393         }
 394         if (status & ATH9K_INT_RXEOL)
 395                 sc->debug.stats.istats.rxeol++;
 396         if (status & ATH9K_INT_RXORN)
 397                 sc->debug.stats.istats.rxorn++;
 398         if (status & ATH9K_INT_TX)
 399                 sc->debug.stats.istats.txok++;
 400         if (status & ATH9K_INT_TXURN)
 401                 sc->debug.stats.istats.txurn++;
 402         if (status & ATH9K_INT_RXPHY)
 403                 sc->debug.stats.istats.rxphyerr++;
 404         if (status & ATH9K_INT_RXKCM)
 405                 sc->debug.stats.istats.rx_keycache_miss++;
 406         if (status & ATH9K_INT_SWBA)
 407                 sc->debug.stats.istats.swba++;
 408         if (status & ATH9K_INT_BMISS)
 409                 sc->debug.stats.istats.bmiss++;
 410         if (status & ATH9K_INT_BNR)
 411                 sc->debug.stats.istats.bnr++;
 412         if (status & ATH9K_INT_CST)
 413                 sc->debug.stats.istats.cst++;
 414         if (status & ATH9K_INT_GTT)
 415                 sc->debug.stats.istats.gtt++;
 416         if (status & ATH9K_INT_TIM)
 417                 sc->debug.stats.istats.tim++;
 418         if (status & ATH9K_INT_CABEND)
 419                 sc->debug.stats.istats.cabend++;
 420         if (status & ATH9K_INT_DTIMSYNC)
 421                 sc->debug.stats.istats.dtimsync++;
 422         if (status & ATH9K_INT_DTIM)
 423                 sc->debug.stats.istats.dtim++;
 424         if (status & ATH9K_INT_TSFOOR)
 425                 sc->debug.stats.istats.tsfoor++;
 426         if (status & ATH9K_INT_MCI)
 427                 sc->debug.stats.istats.mci++;
 428         if (status & ATH9K_INT_GENTIMER)
 429                 sc->debug.stats.istats.gen_timer++;
 430 }
 431
 432 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
 433                                    size_t count, loff_t *ppos)
 434 {
 435         struct ath_softc *sc = file->private_data;
 436         unsigned int len = 0;
 437         int rv;
 438         int mxlen = 4000;
 439         char *buf = kmalloc(mxlen, GFP_KERNEL);
 440         if (!buf)
 441                 return -ENOMEM;
 442
 443 #define PR_IS(a, s)                                             \
 444         do {                                                    \
 445                 len += snprintf(buf + len, mxlen - len,         \
 446                                 "%21s: %10u\n", a,              \
 447                                 sc->debug.stats.istats.s);      \
 448         } while (0)
 449
 450         if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 451                 PR_IS("RXLP", rxlp);
 452                 PR_IS("RXHP", rxhp);
 453                 PR_IS("WATHDOG", bb_watchdog);
 454         } else {
 455                 PR_IS("RX", rxok);
 456         }
 457         PR_IS("RXEOL", rxeol);
 458         PR_IS("RXORN", rxorn);
 459         PR_IS("TX", txok);
 460         PR_IS("TXURN", txurn);
 461         PR_IS("MIB", mib);
 462         PR_IS("RXPHY", rxphyerr);
 463         PR_IS("RXKCM", rx_keycache_miss);
 464         PR_IS("SWBA", swba);
 465         PR_IS("BMISS", bmiss);
 466         PR_IS("BNR", bnr);
 467         PR_IS("CST", cst);
 468         PR_IS("GTT", gtt);
 469         PR_IS("TIM", tim);
 470         PR_IS("CABEND", cabend);
 471         PR_IS("DTIMSYNC", dtimsync);
 472         PR_IS("DTIM", dtim);
 473         PR_IS("TSFOOR", tsfoor);
 474         PR_IS("MCI", mci);
 475         PR_IS("GENTIMER", gen_timer);
 476         PR_IS("TOTAL", total);
 477
 478         len += snprintf(buf + len, mxlen - len,
 479                         "SYNC_CAUSE stats:\n");
 480
 481         PR_IS("Sync-All", sync_cause_all);
 482         PR_IS("RTC-IRQ", sync_rtc_irq);
 483         PR_IS("MAC-IRQ", sync_mac_irq);
 484         PR_IS("EEPROM-Illegal-Access", eeprom_illegal_access);
 485         PR_IS("APB-Timeout", apb_timeout);
 486         PR_IS("PCI-Mode-Conflict", pci_mode_conflict);
 487         PR_IS("HOST1-Fatal", host1_fatal);
 488         PR_IS("HOST1-Perr", host1_perr);
 489         PR_IS("TRCV-FIFO-Perr", trcv_fifo_perr);
 490         PR_IS("RADM-CPL-EP", radm_cpl_ep);
 491         PR_IS("RADM-CPL-DLLP-Abort", radm_cpl_dllp_abort);
 492         PR_IS("RADM-CPL-TLP-Abort", radm_cpl_tlp_abort);
 493         PR_IS("RADM-CPL-ECRC-Err", radm_cpl_ecrc_err);
 494         PR_IS("RADM-CPL-Timeout", radm_cpl_timeout);
 495         PR_IS("Local-Bus-Timeout", local_timeout);
 496         PR_IS("PM-Access", pm_access);
 497         PR_IS("MAC-Awake", mac_awake);
 498         PR_IS("MAC-Asleep", mac_asleep);
 499         PR_IS("MAC-Sleep-Access", mac_sleep_access);
 500
 501         if (len > mxlen)
 502                 len = mxlen;
 503
 504         rv = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 505         kfree(buf);
 506         return rv;
 507 }
 508
 509 static const struct file_operations fops_interrupt = {
 510         .read = read_file_interrupt,
 511         .open = simple_open,
 512         .owner = THIS_MODULE,
 513         .llseek = default_llseek,
 514 };
 515
 516 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
 517                               size_t count, loff_t *ppos)
 518 {
 519         struct ath_softc *sc = file->private_data;
 520         char *buf;
 521         unsigned int len = 0, size = 2048;
 522         ssize_t retval = 0;
 523
 524         buf = kzalloc(size, GFP_KERNEL);
 525         if (buf == NULL)
 526                 return -ENOMEM;
 527
 528         len += sprintf(buf, "%30s %10s%10s%10s\n\n",
 529                        "BE", "BK", "VI", "VO");
 530
 531         PR("MPDUs Queued:    ", queued);
 532         PR("MPDUs Completed: ", completed);
 533         PR("MPDUs XRetried:  ", xretries);
 534         PR("Aggregates:      ", a_aggr);
 535         PR("AMPDUs Queued HW:", a_queued_hw);
 536         PR("AMPDUs Queued SW:", a_queued_sw);
 537         PR("AMPDUs Completed:", a_completed);
 538         PR("AMPDUs Retried:  ", a_retries);
 539         PR("AMPDUs XRetried: ", a_xretries);
 540         PR("TXERR Filtered:  ", txerr_filtered);
 541         PR("FIFO Underrun:   ", fifo_underrun);
 542         PR("TXOP Exceeded:   ", xtxop);
 543         PR("TXTIMER Expiry:  ", timer_exp);
 544         PR("DESC CFG Error:  ", desc_cfg_err);
 545         PR("DATA Underrun:   ", data_underrun);
 546         PR("DELIM Underrun:  ", delim_underrun);
 547         PR("TX-Pkts-All:     ", tx_pkts_all);
 548         PR("TX-Bytes-All:    ", tx_bytes_all);
 549         PR("HW-put-tx-buf:   ", puttxbuf);
 550         PR("HW-tx-start:     ", txstart);
 551         PR("HW-tx-proc-desc: ", txprocdesc);
 552         PR("TX-Failed:       ", txfailed);
 553
 554         if (len > size)
 555                 len = size;
 556
 557         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 558         kfree(buf);
 559
 560         return retval;
 561 }
 562
 563 static ssize_t read_file_queues(struct file *file, char __user *user_buf,
 564                                 size_t count, loff_t *ppos)
 565 {
 566         struct ath_softc *sc = file->private_data;
 567         struct ath_txq *txq;
 568         char *buf;
 569         unsigned int len = 0, size = 1024;
 570         ssize_t retval = 0;
 571         int i;
 572         char *qname[4] = {"VO", "VI", "BE", "BK"};
 573
 574         buf = kzalloc(size, GFP_KERNEL);
 575         if (buf == NULL)
 576                 return -ENOMEM;
 577
 578         for (i = 0; i < IEEE80211_NUM_ACS; i++) {
 579                 txq = sc->tx.txq_map[i];
 580                 len += snprintf(buf + len, size - len, "(%s): ", qname[i]);
 581
 582                 ath_txq_lock(sc, txq);
 583
 584                 len += snprintf(buf + len, size - len, "%s: %d ",
 585                                 "qnum", txq->axq_qnum);
 586                 len += snprintf(buf + len, size - len, "%s: %2d ",
 587                                 "qdepth", txq->axq_depth);
 588                 len += snprintf(buf + len, size - len, "%s: %2d ",
 589                                 "ampdu-depth", txq->axq_ampdu_depth);
 590                 len += snprintf(buf + len, size - len, "%s: %3d ",
 591                                 "pending", txq->pending_frames);
 592                 len += snprintf(buf + len, size - len, "%s: %d\n",
 593                                 "stopped", txq->stopped);
 594
 595                 ath_txq_unlock(sc, txq);
 596         }
 597
 598         if (len > size)
 599                 len = size;
 600
 601         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 602         kfree(buf);
 603
 604         return retval;
 605 }
 606
 607 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
 608                               size_t count, loff_t *ppos)
 609 {
 610         struct ath_softc *sc = file->private_data;
 611         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 612         struct ieee80211_hw *hw = sc->hw;
 613         struct ath9k_vif_iter_data iter_data;
 614         char buf[512];
 615         unsigned int len = 0;
 616         ssize_t retval = 0;
 617         unsigned int reg;
 618         u32 rxfilter;
 619
 620         len += snprintf(buf + len, sizeof(buf) - len,
 621                         "BSSID: %pM\n", common->curbssid);
 622         len += snprintf(buf + len, sizeof(buf) - len,
 623                         "BSSID-MASK: %pM\n", common->bssidmask);
 624         len += snprintf(buf + len, sizeof(buf) - len,
 625                         "OPMODE: %s\n", ath_opmode_to_string(sc->sc_ah->opmode));
 626
 627         ath9k_ps_wakeup(sc);
 628         rxfilter = ath9k_hw_getrxfilter(sc->sc_ah);
 629         ath9k_ps_restore(sc);
 630
 631         len += snprintf(buf + len, sizeof(buf) - len,
 632                         "RXFILTER: 0x%x", rxfilter);
 633
 634         if (rxfilter & ATH9K_RX_FILTER_UCAST)
 635                 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
 636         if (rxfilter & ATH9K_RX_FILTER_MCAST)
 637                 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
 638         if (rxfilter & ATH9K_RX_FILTER_BCAST)
 639                 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
 640         if (rxfilter & ATH9K_RX_FILTER_CONTROL)
 641                 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
 642         if (rxfilter & ATH9K_RX_FILTER_BEACON)
 643                 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
 644         if (rxfilter & ATH9K_RX_FILTER_PROM)
 645                 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
 646         if (rxfilter & ATH9K_RX_FILTER_PROBEREQ)
 647                 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
 648         if (rxfilter & ATH9K_RX_FILTER_PHYERR)
 649                 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR");
 650         if (rxfilter & ATH9K_RX_FILTER_MYBEACON)
 651                 len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON");
 652         if (rxfilter & ATH9K_RX_FILTER_COMP_BAR)
 653                 len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
 654         if (rxfilter & ATH9K_RX_FILTER_PSPOLL)
 655                 len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL");
 656         if (rxfilter & ATH9K_RX_FILTER_PHYRADAR)
 657                 len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
 658         if (rxfilter & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
 659                 len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL");
 660         if (rxfilter & ATH9K_RX_FILTER_CONTROL_WRAPPER)
 661                 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL_WRAPPER");
 662
 663         len += snprintf(buf + len, sizeof(buf) - len, "\n");
 664
 665         reg = sc->sc_ah->imask;
 666
 667         len += snprintf(buf + len, sizeof(buf) - len, "INTERRUPT-MASK: 0x%x", reg);
 668
 669         if (reg & ATH9K_INT_SWBA)
 670                 len += snprintf(buf + len, sizeof(buf) - len, " SWBA");
 671         if (reg & ATH9K_INT_BMISS)
 672                 len += snprintf(buf + len, sizeof(buf) - len, " BMISS");
 673         if (reg & ATH9K_INT_CST)
 674                 len += snprintf(buf + len, sizeof(buf) - len, " CST");
 675         if (reg & ATH9K_INT_RX)
 676                 len += snprintf(buf + len, sizeof(buf) - len, " RX");
 677         if (reg & ATH9K_INT_RXHP)
 678                 len += snprintf(buf + len, sizeof(buf) - len, " RXHP");
 679         if (reg & ATH9K_INT_RXLP)
 680                 len += snprintf(buf + len, sizeof(buf) - len, " RXLP");
 681         if (reg & ATH9K_INT_BB_WATCHDOG)
 682                 len += snprintf(buf + len, sizeof(buf) - len, " BB_WATCHDOG");
 683
 684         len += snprintf(buf + len, sizeof(buf) - len, "\n");
 685
 686         ath9k_calculate_iter_data(hw, NULL, &iter_data);
 687
 688         len += snprintf(buf + len, sizeof(buf) - len,
 689                         "VIF-COUNTS: AP: %i STA: %i MESH: %i WDS: %i"
 690                         " ADHOC: %i TOTAL: %hi BEACON-VIF: %hi\n",
 691                         iter_data.naps, iter_data.nstations, iter_data.nmeshes,
 692                         iter_data.nwds, iter_data.nadhocs,
 693                         sc->nvifs, sc->nbcnvifs);
 694
 695         if (len > sizeof(buf))
 696                 len = sizeof(buf);
 697
 698         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 699         return retval;
 700 }
 701
 702 static ssize_t read_file_reset(struct file *file, char __user *user_buf,
 703                                size_t count, loff_t *ppos)
 704 {
 705         struct ath_softc *sc = file->private_data;
 706         char buf[512];
 707         unsigned int len = 0;
 708
 709         len += snprintf(buf + len, sizeof(buf) - len,
 710                         "%17s: %2d\n", "Baseband Hang",
 711                         sc->debug.stats.reset[RESET_TYPE_BB_HANG]);
 712         len += snprintf(buf + len, sizeof(buf) - len,
 713                         "%17s: %2d\n", "Baseband Watchdog",
 714                         sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG]);
 715         len += snprintf(buf + len, sizeof(buf) - len,
 716                         "%17s: %2d\n", "Fatal HW Error",
 717                         sc->debug.stats.reset[RESET_TYPE_FATAL_INT]);
 718         len += snprintf(buf + len, sizeof(buf) - len,
 719                         "%17s: %2d\n", "TX HW error",
 720                         sc->debug.stats.reset[RESET_TYPE_TX_ERROR]);
 721         len += snprintf(buf + len, sizeof(buf) - len,
 722                         "%17s: %2d\n", "TX Path Hang",
 723                         sc->debug.stats.reset[RESET_TYPE_TX_HANG]);
 724         len += snprintf(buf + len, sizeof(buf) - len,
 725                         "%17s: %2d\n", "PLL RX Hang",
 726                         sc->debug.stats.reset[RESET_TYPE_PLL_HANG]);
 727         len += snprintf(buf + len, sizeof(buf) - len,
 728                         "%17s: %2d\n", "MCI Reset",
 729                         sc->debug.stats.reset[RESET_TYPE_MCI]);
 730
 731         if (len > sizeof(buf))
 732                 len = sizeof(buf);
 733
 734         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 735 }
 736
 737 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 738                        struct ath_tx_status *ts, struct ath_txq *txq,
 739                        unsigned int flags)
 740 {
 741 #define TX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].ts\
 742                         [sc->debug.tsidx].c)
 743         int qnum = txq->axq_qnum;
 744
 745         TX_STAT_INC(qnum, tx_pkts_all);
 746         sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
 747
 748         if (bf_isampdu(bf)) {
 749                 if (flags & ATH_TX_ERROR)
 750                         TX_STAT_INC(qnum, a_xretries);
 751                 else
 752                         TX_STAT_INC(qnum, a_completed);
 753         } else {
 754                 if (ts->ts_status & ATH9K_TXERR_XRETRY)
 755                         TX_STAT_INC(qnum, xretries);
 756                 else
 757                         TX_STAT_INC(qnum, completed);
 758         }
 759
 760         if (ts->ts_status & ATH9K_TXERR_FILT)
 761                 TX_STAT_INC(qnum, txerr_filtered);
 762         if (ts->ts_status & ATH9K_TXERR_FIFO)
 763                 TX_STAT_INC(qnum, fifo_underrun);
 764         if (ts->ts_status & ATH9K_TXERR_XTXOP)
 765                 TX_STAT_INC(qnum, xtxop);
 766         if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
 767                 TX_STAT_INC(qnum, timer_exp);
 768         if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
 769                 TX_STAT_INC(qnum, desc_cfg_err);
 770         if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
 771                 TX_STAT_INC(qnum, data_underrun);
 772         if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
 773                 TX_STAT_INC(qnum, delim_underrun);
 774
 775 #ifdef CONFIG_ATH9K_MAC_DEBUG
 776         spin_lock(&sc->debug.samp_lock);
 777         TX_SAMP_DBG(jiffies) = jiffies;
 778         TX_SAMP_DBG(rssi_ctl0) = ts->ts_rssi_ctl0;
 779         TX_SAMP_DBG(rssi_ctl1) = ts->ts_rssi_ctl1;
 780         TX_SAMP_DBG(rssi_ctl2) = ts->ts_rssi_ctl2;
 781         TX_SAMP_DBG(rssi_ext0) = ts->ts_rssi_ext0;
 782         TX_SAMP_DBG(rssi_ext1) = ts->ts_rssi_ext1;
 783         TX_SAMP_DBG(rssi_ext2) = ts->ts_rssi_ext2;
 784         TX_SAMP_DBG(rateindex) = ts->ts_rateindex;
 785         TX_SAMP_DBG(isok) = !!(ts->ts_status & ATH9K_TXERR_MASK);
 786         TX_SAMP_DBG(rts_fail_cnt) = ts->ts_shortretry;
 787         TX_SAMP_DBG(data_fail_cnt) = ts->ts_longretry;
 788         TX_SAMP_DBG(rssi) = ts->ts_rssi;
 789         TX_SAMP_DBG(tid) = ts->tid;
 790         TX_SAMP_DBG(qid) = ts->qid;
 791
 792         if (ts->ts_flags & ATH9K_TX_BA) {
 793                 TX_SAMP_DBG(ba_low) = ts->ba_low;
 794                 TX_SAMP_DBG(ba_high) = ts->ba_high;
 795         } else {
 796                 TX_SAMP_DBG(ba_low) = 0;
 797                 TX_SAMP_DBG(ba_high) = 0;
 798         }
 799
 800         sc->debug.tsidx = (sc->debug.tsidx + 1) % ATH_DBG_MAX_SAMPLES;
 801         spin_unlock(&sc->debug.samp_lock);
 802 #endif
 803
 804 #undef TX_SAMP_DBG
 805 }
 806
 807 static const struct file_operations fops_xmit = {
 808         .read = read_file_xmit,
 809         .open = simple_open,
 810         .owner = THIS_MODULE,
 811         .llseek = default_llseek,
 812 };
 813
 814 static const struct file_operations fops_queues = {
 815         .read = read_file_queues,
 816         .open = simple_open,
 817         .owner = THIS_MODULE,
 818         .llseek = default_llseek,
 819 };
 820
 821 static const struct file_operations fops_misc = {
 822         .read = read_file_misc,
 823         .open = simple_open,
 824         .owner = THIS_MODULE,
 825         .llseek = default_llseek,
 826 };
 827
 828 static const struct file_operations fops_reset = {
 829         .read = read_file_reset,
 830         .open = simple_open,
 831         .owner = THIS_MODULE,
 832         .llseek = default_llseek,
 833 };
 834
 835 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 836                               size_t count, loff_t *ppos)
 837 {
 838 #define PHY_ERR(s, p) \
 839         len += snprintf(buf + len, size - len, "%22s : %10u\n", s, \
 840                         sc->debug.stats.rxstats.phy_err_stats[p]);
 841
 842 #define RXS_ERR(s, e)                                       \
 843         do {                                                \
 844                 len += snprintf(buf + len, size - len,      \
 845                                 "%22s : %10u\n", s,         \
 846                                 sc->debug.stats.rxstats.e); \
 847         } while (0)
 848
 849         struct ath_softc *sc = file->private_data;
 850         char *buf;
 851         unsigned int len = 0, size = 1600;
 852         ssize_t retval = 0;
 853
 854         buf = kzalloc(size, GFP_KERNEL);
 855         if (buf == NULL)
 856                 return -ENOMEM;
 857
 858         RXS_ERR("CRC ERR", crc_err);
 859         RXS_ERR("DECRYPT CRC ERR", decrypt_crc_err);
 860         RXS_ERR("PHY ERR", phy_err);
 861         RXS_ERR("MIC ERR", mic_err);
 862         RXS_ERR("PRE-DELIM CRC ERR", pre_delim_crc_err);
 863         RXS_ERR("POST-DELIM CRC ERR", post_delim_crc_err);
 864         RXS_ERR("DECRYPT BUSY ERR", decrypt_busy_err);
 865         RXS_ERR("RX-LENGTH-ERR", rx_len_err);
 866         RXS_ERR("RX-OOM-ERR", rx_oom_err);
 867         RXS_ERR("RX-RATE-ERR", rx_rate_err);
 868         RXS_ERR("RX-TOO-MANY-FRAGS", rx_too_many_frags_err);
 869
 870         PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN);
 871         PHY_ERR("TIMING ERR", ATH9K_PHYERR_TIMING);
 872         PHY_ERR("PARITY ERR", ATH9K_PHYERR_PARITY);
 873         PHY_ERR("RATE ERR", ATH9K_PHYERR_RATE);
 874         PHY_ERR("LENGTH ERR", ATH9K_PHYERR_LENGTH);
 875         PHY_ERR("RADAR ERR", ATH9K_PHYERR_RADAR);
 876         PHY_ERR("SERVICE ERR", ATH9K_PHYERR_SERVICE);
 877         PHY_ERR("TOR ERR", ATH9K_PHYERR_TOR);
 878         PHY_ERR("OFDM-TIMING ERR", ATH9K_PHYERR_OFDM_TIMING);
 879         PHY_ERR("OFDM-SIGNAL-PARITY ERR", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
 880         PHY_ERR("OFDM-RATE ERR", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
 881         PHY_ERR("OFDM-LENGTH ERR", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
 882         PHY_ERR("OFDM-POWER-DROP ERR", ATH9K_PHYERR_OFDM_POWER_DROP);
 883         PHY_ERR("OFDM-SERVICE ERR", ATH9K_PHYERR_OFDM_SERVICE);
 884         PHY_ERR("OFDM-RESTART ERR", ATH9K_PHYERR_OFDM_RESTART);
 885         PHY_ERR("FALSE-RADAR-EXT ERR", ATH9K_PHYERR_FALSE_RADAR_EXT);
 886         PHY_ERR("CCK-TIMING ERR", ATH9K_PHYERR_CCK_TIMING);
 887         PHY_ERR("CCK-HEADER-CRC ERR", ATH9K_PHYERR_CCK_HEADER_CRC);
 888         PHY_ERR("CCK-RATE ERR", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
 889         PHY_ERR("CCK-SERVICE ERR", ATH9K_PHYERR_CCK_SERVICE);
 890         PHY_ERR("CCK-RESTART ERR", ATH9K_PHYERR_CCK_RESTART);
 891         PHY_ERR("CCK-LENGTH ERR", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
 892         PHY_ERR("CCK-POWER-DROP ERR", ATH9K_PHYERR_CCK_POWER_DROP);
 893         PHY_ERR("HT-CRC ERR", ATH9K_PHYERR_HT_CRC_ERROR);
 894         PHY_ERR("HT-LENGTH ERR", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
 895         PHY_ERR("HT-RATE ERR", ATH9K_PHYERR_HT_RATE_ILLEGAL);
 896
 897         RXS_ERR("RX-Pkts-All", rx_pkts_all);
 898         RXS_ERR("RX-Bytes-All", rx_bytes_all);
 899         RXS_ERR("RX-Beacons", rx_beacons);
 900         RXS_ERR("RX-Frags", rx_frags);
 901         RXS_ERR("RX-Spectral", rx_spectral);
 902
 903         if (len > size)
 904                 len = size;
 905
 906         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 907         kfree(buf);
 908
 909         return retval;
 910
 911 #undef RXS_ERR
 912 #undef PHY_ERR
 913 }
 914
 915 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
 916 {
 917 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
 918 #define RX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].rs\
 919                         [sc->debug.rsidx].c)
 920
 921         RX_STAT_INC(rx_pkts_all);
 922         sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen;
 923
 924         if (rs->rs_status & ATH9K_RXERR_CRC)
 925                 RX_STAT_INC(crc_err);
 926         if (rs->rs_status & ATH9K_RXERR_DECRYPT)
 927                 RX_STAT_INC(decrypt_crc_err);
 928         if (rs->rs_status & ATH9K_RXERR_MIC)
 929                 RX_STAT_INC(mic_err);
 930         if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
 931                 RX_STAT_INC(pre_delim_crc_err);
 932         if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
 933                 RX_STAT_INC(post_delim_crc_err);
 934         if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
 935                 RX_STAT_INC(decrypt_busy_err);
 936
 937         if (rs->rs_status & ATH9K_RXERR_PHY) {
 938                 RX_STAT_INC(phy_err);
 939                 if (rs->rs_phyerr < ATH9K_PHYERR_MAX)
 940                         RX_PHY_ERR_INC(rs->rs_phyerr);
 941         }
 942
 943 #ifdef CONFIG_ATH9K_MAC_DEBUG
 944         spin_lock(&sc->debug.samp_lock);
 945         RX_SAMP_DBG(jiffies) = jiffies;
 946         RX_SAMP_DBG(rssi_ctl0) = rs->rs_rssi_ctl0;
 947         RX_SAMP_DBG(rssi_ctl1) = rs->rs_rssi_ctl1;
 948         RX_SAMP_DBG(rssi_ctl2) = rs->rs_rssi_ctl2;
 949         RX_SAMP_DBG(rssi_ext0) = rs->rs_rssi_ext0;
 950         RX_SAMP_DBG(rssi_ext1) = rs->rs_rssi_ext1;
 951         RX_SAMP_DBG(rssi_ext2) = rs->rs_rssi_ext2;
 952         RX_SAMP_DBG(antenna) = rs->rs_antenna;
 953         RX_SAMP_DBG(rssi) = rs->rs_rssi;
 954         RX_SAMP_DBG(rate) = rs->rs_rate;
 955         RX_SAMP_DBG(is_mybeacon) = rs->is_mybeacon;
 956
 957         sc->debug.rsidx = (sc->debug.rsidx + 1) % ATH_DBG_MAX_SAMPLES;
 958         spin_unlock(&sc->debug.samp_lock);
 959
 960 #endif
 961
 962 #undef RX_PHY_ERR_INC
 963 #undef RX_SAMP_DBG
 964 }
 965
 966 static const struct file_operations fops_recv = {
 967         .read = read_file_recv,
 968         .open = simple_open,
 969         .owner = THIS_MODULE,
 970         .llseek = default_llseek,
 971 };
 972
 973 static ssize_t read_file_spec_scan_ctl(struct file *file, char __user *user_buf,
 974                                        size_t count, loff_t *ppos)
 975 {
 976         struct ath_softc *sc = file->private_data;
 977         char *mode = "";
 978         unsigned int len;
 979
 980         switch (sc->spectral_mode) {
 981         case SPECTRAL_DISABLED:
 982                 mode = "disable";
 983                 break;
 984         case SPECTRAL_BACKGROUND:
 985                 mode = "background";
 986                 break;
 987         case SPECTRAL_CHANSCAN:
 988                 mode = "chanscan";
 989                 break;
 990         case SPECTRAL_MANUAL:
 991                 mode = "manual";
 992                 break;
 993         }
 994         len = strlen(mode);
 995         return simple_read_from_buffer(user_buf, count, ppos, mode, len);
 996 }
 997
 998 static ssize_t write_file_spec_scan_ctl(struct file *file,
 999                                         const char __user *user_buf,
1000                                         size_t count, loff_t *ppos)
1001 {
1002         struct ath_softc *sc = file->private_data;
1003         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1004         char buf[32];
1005         ssize_t len;
1006
1007         len = min(count, sizeof(buf) - 1);
1008         if (copy_from_user(buf, user_buf, len))
1009                 return -EFAULT;
1010
1011         buf[len] = '\0';
1012
1013         if (strncmp("trigger", buf, 7) == 0) {
1014                 ath9k_spectral_scan_trigger(sc->hw);
1015         } else if (strncmp("background", buf, 9) == 0) {
1016                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_BACKGROUND);
1017                 ath_dbg(common, CONFIG, "spectral scan: background mode enabled\n");
1018         } else if (strncmp("chanscan", buf, 8) == 0) {
1019                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_CHANSCAN);
1020                 ath_dbg(common, CONFIG, "spectral scan: channel scan mode enabled\n");
1021         } else if (strncmp("manual", buf, 6) == 0) {
1022                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_MANUAL);
1023                 ath_dbg(common, CONFIG, "spectral scan: manual mode enabled\n");
1024         } else if (strncmp("disable", buf, 7) == 0) {
1025                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_DISABLED);
1026                 ath_dbg(common, CONFIG, "spectral scan: disabled\n");
1027         } else {
1028                 return -EINVAL;
1029         }
1030
1031         return count;
1032 }
1033
1034 static const struct file_operations fops_spec_scan_ctl = {
1035         .read = read_file_spec_scan_ctl,
1036         .write = write_file_spec_scan_ctl,
1037         .open = simple_open,
1038         .owner = THIS_MODULE,
1039         .llseek = default_llseek,
1040 };
1041
1042 static ssize_t read_file_spectral_short_repeat(struct file *file,
1043                                                char __user *user_buf,
1044                                                size_t count, loff_t *ppos)
1045 {
1046         struct ath_softc *sc = file->private_data;
1047         char buf[32];
1048         unsigned int len;
1049
1050         len = sprintf(buf, "%d\n", sc->spec_config.short_repeat);
1051         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1052 }
1053
1054 static ssize_t write_file_spectral_short_repeat(struct file *file,
1055                                                 const char __user *user_buf,
1056                                                 size_t count, loff_t *ppos)
1057 {
1058         struct ath_softc *sc = file->private_data;
1059         unsigned long val;
1060         char buf[32];
1061         ssize_t len;
1062
1063         len = min(count, sizeof(buf) - 1);
1064         if (copy_from_user(buf, user_buf, len))
1065                 return -EFAULT;
1066
1067         buf[len] = '\0';
1068         if (kstrtoul(buf, 0, &val))
1069                 return -EINVAL;
1070
1071         if (val < 0 || val > 1)
1072                 return -EINVAL;
1073
1074         sc->spec_config.short_repeat = val;
1075         return count;
1076 }
1077
1078 static const struct file_operations fops_spectral_short_repeat = {
1079         .read = read_file_spectral_short_repeat,
1080         .write = write_file_spectral_short_repeat,
1081         .open = simple_open,
1082         .owner = THIS_MODULE,
1083         .llseek = default_llseek,
1084 };
1085
1086 static ssize_t read_file_spectral_count(struct file *file,
1087                                         char __user *user_buf,
1088                                         size_t count, loff_t *ppos)
1089 {
1090         struct ath_softc *sc = file->private_data;
1091         char buf[32];
1092         unsigned int len;
1093
1094         len = sprintf(buf, "%d\n", sc->spec_config.count);
1095         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1096 }
1097
1098 static ssize_t write_file_spectral_count(struct file *file,
1099                                          const char __user *user_buf,
1100                                          size_t count, loff_t *ppos)
1101 {
1102         struct ath_softc *sc = file->private_data;
1103         unsigned long val;
1104         char buf[32];
1105         ssize_t len;
1106
1107         len = min(count, sizeof(buf) - 1);
1108         if (copy_from_user(buf, user_buf, len))
1109                 return -EFAULT;
1110
1111         buf[len] = '\0';
1112         if (kstrtoul(buf, 0, &val))
1113                 return -EINVAL;
1114
1115         if (val < 0 || val > 255)
1116                 return -EINVAL;
1117
1118         sc->spec_config.count = val;
1119         return count;
1120 }
1121
1122 static const struct file_operations fops_spectral_count = {
1123         .read = read_file_spectral_count,
1124         .write = write_file_spectral_count,
1125         .open = simple_open,
1126         .owner = THIS_MODULE,
1127         .llseek = default_llseek,
1128 };
1129
1130 static ssize_t read_file_spectral_period(struct file *file,
1131                                          char __user *user_buf,
1132                                          size_t count, loff_t *ppos)
1133 {
1134         struct ath_softc *sc = file->private_data;
1135         char buf[32];
1136         unsigned int len;
1137
1138         len = sprintf(buf, "%d\n", sc->spec_config.period);
1139         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1140 }
1141
1142 static ssize_t write_file_spectral_period(struct file *file,
1143                                           const char __user *user_buf,
1144                                           size_t count, loff_t *ppos)
1145 {
1146         struct ath_softc *sc = file->private_data;
1147         unsigned long val;
1148         char buf[32];
1149         ssize_t len;
1150
1151         len = min(count, sizeof(buf) - 1);
1152         if (copy_from_user(buf, user_buf, len))
1153                 return -EFAULT;
1154
1155         buf[len] = '\0';
1156         if (kstrtoul(buf, 0, &val))
1157                 return -EINVAL;
1158
1159         if (val < 0 || val > 255)
1160                 return -EINVAL;
1161
1162         sc->spec_config.period = val;
1163         return count;
1164 }
1165
1166 static const struct file_operations fops_spectral_period = {
1167         .read = read_file_spectral_period,
1168         .write = write_file_spectral_period,
1169         .open = simple_open,
1170         .owner = THIS_MODULE,
1171         .llseek = default_llseek,
1172 };
1173
1174 static ssize_t read_file_spectral_fft_period(struct file *file,
1175                                              char __user *user_buf,
1176                                              size_t count, loff_t *ppos)
1177 {
1178         struct ath_softc *sc = file->private_data;
1179         char buf[32];
1180         unsigned int len;
1181
1182         len = sprintf(buf, "%d\n", sc->spec_config.fft_period);
1183         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1184 }
1185
1186 static ssize_t write_file_spectral_fft_period(struct file *file,
1187                                               const char __user *user_buf,
1188                                               size_t count, loff_t *ppos)
1189 {
1190         struct ath_softc *sc = file->private_data;
1191         unsigned long val;
1192         char buf[32];
1193         ssize_t len;
1194
1195         len = min(count, sizeof(buf) - 1);
1196         if (copy_from_user(buf, user_buf, len))
1197                 return -EFAULT;
1198
1199         buf[len] = '\0';
1200         if (kstrtoul(buf, 0, &val))
1201                 return -EINVAL;
1202
1203         if (val < 0 || val > 15)
1204                 return -EINVAL;
1205
1206         sc->spec_config.fft_period = val;
1207         return count;
1208 }
1209
1210 static const struct file_operations fops_spectral_fft_period = {
1211         .read = read_file_spectral_fft_period,
1212         .write = write_file_spectral_fft_period,
1213         .open = simple_open,
1214         .owner = THIS_MODULE,
1215         .llseek = default_llseek,
1216 };
1217
1218 static struct dentry *create_buf_file_handler(const char *filename,
1219                                               struct dentry *parent,
1220                                               umode_t mode,
1221                                               struct rchan_buf *buf,
1222                                               int *is_global)
1223 {
1224         struct dentry *buf_file;
1225
1226         buf_file = debugfs_create_file(filename, mode, parent, buf,
1227                                        &relay_file_operations);
1228         *is_global = 1;
1229         return buf_file;
1230 }
1231
1232 static int remove_buf_file_handler(struct dentry *dentry)
1233 {
1234         debugfs_remove(dentry);
1235
1236         return 0;
1237 }
1238
1239 void ath_debug_send_fft_sample(struct ath_softc *sc,
1240                                struct fft_sample_tlv *fft_sample_tlv)
1241 {
1242         int length;
1243         if (!sc->rfs_chan_spec_scan)
1244                 return;
1245
1246         length = __be16_to_cpu(fft_sample_tlv->length) +
1247                  sizeof(*fft_sample_tlv);
1248         relay_write(sc->rfs_chan_spec_scan, fft_sample_tlv, length);
1249 }
1250
1251 static struct rchan_callbacks rfs_spec_scan_cb = {
1252         .create_buf_file = create_buf_file_handler,
1253         .remove_buf_file = remove_buf_file_handler,
1254 };
1255
1256
1257 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
1258                                 size_t count, loff_t *ppos)
1259 {
1260         struct ath_softc *sc = file->private_data;
1261         char buf[32];
1262         unsigned int len;
1263
1264         len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
1265         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1266 }
1267
1268 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
1269                              size_t count, loff_t *ppos)
1270 {
1271         struct ath_softc *sc = file->private_data;
1272         unsigned long regidx;
1273         char buf[32];
1274         ssize_t len;
1275
1276         len = min(count, sizeof(buf) - 1);
1277         if (copy_from_user(buf, user_buf, len))
1278                 return -EFAULT;
1279
1280         buf[len] = '\0';
1281         if (kstrtoul(buf, 0, &regidx))
1282                 return -EINVAL;
1283
1284         sc->debug.regidx = regidx;
1285         return count;
1286 }
1287
1288 static const struct file_operations fops_regidx = {
1289         .read = read_file_regidx,
1290         .write = write_file_regidx,
1291         .open = simple_open,
1292         .owner = THIS_MODULE,
1293         .llseek = default_llseek,
1294 };
1295
1296 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
1297                              size_t count, loff_t *ppos)
1298 {
1299         struct ath_softc *sc = file->private_data;
1300         struct ath_hw *ah = sc->sc_ah;
1301         char buf[32];
1302         unsigned int len;
1303         u32 regval;
1304
1305         ath9k_ps_wakeup(sc);
1306         regval = REG_READ_D(ah, sc->debug.regidx);
1307         ath9k_ps_restore(sc);
1308         len = sprintf(buf, "0x%08x\n", regval);
1309         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1310 }
1311
1312 static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
1313                              size_t count, loff_t *ppos)
1314 {
1315         struct ath_softc *sc = file->private_data;
1316         struct ath_hw *ah = sc->sc_ah;
1317         unsigned long regval;
1318         char buf[32];
1319         ssize_t len;
1320
1321         len = min(count, sizeof(buf) - 1);
1322         if (copy_from_user(buf, user_buf, len))
1323                 return -EFAULT;
1324
1325         buf[len] = '\0';
1326         if (kstrtoul(buf, 0, &regval))
1327                 return -EINVAL;
1328
1329         ath9k_ps_wakeup(sc);
1330         REG_WRITE_D(ah, sc->debug.regidx, regval);
1331         ath9k_ps_restore(sc);
1332         return count;
1333 }
1334
1335 static const struct file_operations fops_regval = {
1336         .read = read_file_regval,
1337         .write = write_file_regval,
1338         .open = simple_open,
1339         .owner = THIS_MODULE,
1340         .llseek = default_llseek,
1341 };
1342
1343 #define REGDUMP_LINE_SIZE       20
1344
1345 static int open_file_regdump(struct inode *inode, struct file *file)
1346 {
1347         struct ath_softc *sc = inode->i_private;
1348         unsigned int len = 0;
1349         u8 *buf;
1350         int i;
1351         unsigned long num_regs, regdump_len, max_reg_offset;
1352
1353         max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x16bd4 : 0xb500;
1354         num_regs = max_reg_offset / 4 + 1;
1355         regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
1356         buf = vmalloc(regdump_len);
1357         if (!buf)
1358                 return -ENOMEM;
1359
1360         ath9k_ps_wakeup(sc);
1361         for (i = 0; i < num_regs; i++)
1362                 len += scnprintf(buf + len, regdump_len - len,
1363                         "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
1364         ath9k_ps_restore(sc);
1365
1366         file->private_data = buf;
1367
1368         return 0;
1369 }
1370
1371 static const struct file_operations fops_regdump = {
1372         .open = open_file_regdump,
1373         .read = ath9k_debugfs_read_buf,
1374         .release = ath9k_debugfs_release_buf,
1375         .owner = THIS_MODULE,
1376         .llseek = default_llseek,/* read accesses f_pos */
1377 };
1378
1379 static ssize_t read_file_dump_nfcal(struct file *file, char __user *user_buf,
1380                                     size_t count, loff_t *ppos)
1381 {
1382         struct ath_softc *sc = file->private_data;
1383         struct ath_hw *ah = sc->sc_ah;
1384         struct ath9k_nfcal_hist *h = sc->caldata.nfCalHist;
1385         struct ath_common *common = ath9k_hw_common(ah);
1386         struct ieee80211_conf *conf = &common->hw->conf;
1387         u32 len = 0, size = 1500;
1388         u32 i, j;
1389         ssize_t retval = 0;
1390         char *buf;
1391         u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
1392         u8 nread;
1393
1394         buf = kzalloc(size, GFP_KERNEL);
1395         if (!buf)
1396                 return -ENOMEM;
1397
1398         len += snprintf(buf + len, size - len,
1399                         "Channel Noise Floor : %d\n", ah->noise);
1400         len += snprintf(buf + len, size - len,
1401                         "Chain | privNF | # Readings | NF Readings\n");
1402         for (i = 0; i < NUM_NF_READINGS; i++) {
1403                 if (!(chainmask & (1 << i)) ||
1404                     ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
1405                         continue;
1406
1407                 nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount;
1408                 len += snprintf(buf + len, size - len, " %d\t %d\t %d\t\t",
1409                                 i, h[i].privNF, nread);
1410                 for (j = 0; j < nread; j++)
1411                         len += snprintf(buf + len, size - len,
1412                                         " %d", h[i].nfCalBuffer[j]);
1413                 len += snprintf(buf + len, size - len, "\n");
1414         }
1415
1416         if (len > size)
1417                 len = size;
1418
1419         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1420         kfree(buf);
1421
1422         return retval;
1423 }
1424
1425 static const struct file_operations fops_dump_nfcal = {
1426         .read = read_file_dump_nfcal,
1427         .open = simple_open,
1428         .owner = THIS_MODULE,
1429         .llseek = default_llseek,
1430 };
1431
1432 static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
1433                                      size_t count, loff_t *ppos)
1434 {
1435         struct ath_softc *sc = file->private_data;
1436         struct ath_hw *ah = sc->sc_ah;
1437         u32 len = 0, size = 1500;
1438         ssize_t retval = 0;
1439         char *buf;
1440
1441         buf = kzalloc(size, GFP_KERNEL);
1442         if (!buf)
1443                 return -ENOMEM;
1444
1445         len = ah->eep_ops->dump_eeprom(ah, true, buf, len, size);
1446
1447         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1448         kfree(buf);
1449
1450         return retval;
1451 }
1452
1453 static const struct file_operations fops_base_eeprom = {
1454         .read = read_file_base_eeprom,
1455         .open = simple_open,
1456         .owner = THIS_MODULE,
1457         .llseek = default_llseek,
1458 };
1459
1460 static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf,
1461                                       size_t count, loff_t *ppos)
1462 {
1463         struct ath_softc *sc = file->private_data;
1464         struct ath_hw *ah = sc->sc_ah;
1465         u32 len = 0, size = 6000;
1466         char *buf;
1467         size_t retval;
1468
1469         buf = kzalloc(size, GFP_KERNEL);
1470         if (buf == NULL)
1471                 return -ENOMEM;
1472
1473         len = ah->eep_ops->dump_eeprom(ah, false, buf, len, size);
1474
1475         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1476         kfree(buf);
1477
1478         return retval;
1479 }
1480
1481 static const struct file_operations fops_modal_eeprom = {
1482         .read = read_file_modal_eeprom,
1483         .open = simple_open,
1484         .owner = THIS_MODULE,
1485         .llseek = default_llseek,
1486 };
1487
1488 #ifdef CONFIG_ATH9K_MAC_DEBUG
1489
1490 void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
1491 {
1492 #define ATH_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].c)
1493         struct ath_hw *ah = sc->sc_ah;
1494         struct ath_common *common = ath9k_hw_common(ah);
1495         unsigned long flags;
1496         int i;
1497
1498         ath9k_ps_wakeup(sc);
1499
1500         spin_lock_bh(&sc->debug.samp_lock);
1501
1502         spin_lock_irqsave(&common->cc_lock, flags);
1503         ath_hw_cycle_counters_update(common);
1504
1505         ATH_SAMP_DBG(cc.cycles) = common->cc_ani.cycles;
1506         ATH_SAMP_DBG(cc.rx_busy) = common->cc_ani.rx_busy;
1507         ATH_SAMP_DBG(cc.rx_frame) = common->cc_ani.rx_frame;
1508         ATH_SAMP_DBG(cc.tx_frame) = common->cc_ani.tx_frame;
1509         spin_unlock_irqrestore(&common->cc_lock, flags);
1510
1511         ATH_SAMP_DBG(noise) = ah->noise;
1512
1513         REG_WRITE_D(ah, AR_MACMISC,
1514                   ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
1515                    (AR_MACMISC_MISC_OBS_BUS_1 <<
1516                     AR_MACMISC_MISC_OBS_BUS_MSB_S)));
1517
1518         for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
1519                 ATH_SAMP_DBG(dma_dbg_reg_vals[i]) = REG_READ_D(ah,
1520                                 AR_DMADBG_0 + (i * sizeof(u32)));
1521
1522         ATH_SAMP_DBG(pcu_obs) = REG_READ_D(ah, AR_OBS_BUS_1);
1523         ATH_SAMP_DBG(pcu_cr) = REG_READ_D(ah, AR_CR);
1524
1525         memcpy(ATH_SAMP_DBG(nfCalHist), sc->caldata.nfCalHist,
1526                         sizeof(ATH_SAMP_DBG(nfCalHist)));
1527
1528         sc->debug.sampidx = (sc->debug.sampidx + 1) % ATH_DBG_MAX_SAMPLES;
1529         spin_unlock_bh(&sc->debug.samp_lock);
1530         ath9k_ps_restore(sc);
1531
1532 #undef ATH_SAMP_DBG
1533 }
1534
1535 static int open_file_bb_mac_samps(struct inode *inode, struct file *file)
1536 {
1537 #define ATH_SAMP_DBG(c) bb_mac_samp[sampidx].c
1538         struct ath_softc *sc = inode->i_private;
1539         struct ath_hw *ah = sc->sc_ah;
1540         struct ath_common *common = ath9k_hw_common(ah);
1541         struct ieee80211_conf *conf = &common->hw->conf;
1542         struct ath_dbg_bb_mac_samp *bb_mac_samp;
1543         struct ath9k_nfcal_hist *h;
1544         int i, j, qcuOffset = 0, dcuOffset = 0;
1545         u32 *qcuBase, *dcuBase, size = 30000, len = 0;
1546         u32 sampidx = 0;
1547         u8 *buf;
1548         u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
1549         u8 nread;
1550
1551         if (test_bit(SC_OP_INVALID, &sc->sc_flags))
1552                 return -EAGAIN;
1553
1554         buf = vmalloc(size);
1555         if (!buf)
1556                 return -ENOMEM;
1557         bb_mac_samp = vmalloc(sizeof(*bb_mac_samp) * ATH_DBG_MAX_SAMPLES);
1558         if (!bb_mac_samp) {
1559                 vfree(buf);
1560                 return -ENOMEM;
1561         }
1562         /* Account the current state too */
1563         ath9k_debug_samp_bb_mac(sc);
1564
1565         spin_lock_bh(&sc->debug.samp_lock);
1566         memcpy(bb_mac_samp, sc->debug.bb_mac_samp,
1567                         sizeof(*bb_mac_samp) * ATH_DBG_MAX_SAMPLES);
1568         len += snprintf(buf + len, size - len,
1569                         "Current Sample Index: %d\n", sc->debug.sampidx);
1570         spin_unlock_bh(&sc->debug.samp_lock);
1571
1572         len += snprintf(buf + len, size - len,
1573                         "Raw DMA Debug Dump:\n");
1574         len += snprintf(buf + len, size - len, "Sample |\t");
1575         for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
1576                 len += snprintf(buf + len, size - len, " DMA Reg%d |\t", i);
1577         len += snprintf(buf + len, size - len, "\n");
1578
1579         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1580                 len += snprintf(buf + len, size - len, "%d\t", sampidx);
1581
1582                 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
1583                         len += snprintf(buf + len, size - len, " %08x\t",
1584                                         ATH_SAMP_DBG(dma_dbg_reg_vals[i]));
1585                 len += snprintf(buf + len, size - len, "\n");
1586         }
1587         len += snprintf(buf + len, size - len, "\n");
1588
1589         len += snprintf(buf + len, size - len,
1590                         "Sample Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
1591         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1592                 qcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[0]);
1593                 dcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[4]);
1594
1595                 for (i = 0; i < ATH9K_NUM_QUEUES; i++,
1596                                 qcuOffset += 4, dcuOffset += 5) {
1597                         if (i == 8) {
1598                                 qcuOffset = 0;
1599                                 qcuBase++;
1600                         }
1601
1602                         if (i == 6) {
1603                                 dcuOffset = 0;
1604                                 dcuBase++;
1605                         }
1606                         if (!sc->debug.stats.txstats[i].queued)
1607                                 continue;
1608
1609                         len += snprintf(buf + len, size - len,
1610                                 "%4d %7d    %2x      %1x     %2x         %2x\n",
1611                                 sampidx, i,
1612                                 (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
1613                                 (*qcuBase & (0x8 << qcuOffset)) >>
1614                                 (qcuOffset + 3),
1615                                 ATH_SAMP_DBG(dma_dbg_reg_vals[2]) &
1616                                 (0x7 << (i * 3)) >> (i * 3),
1617                                 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
1618                 }
1619                 len += snprintf(buf + len, size - len, "\n");
1620         }
1621         len += snprintf(buf + len, size - len,
1622                         "samp qcu_sh qcu_fh qcu_comp dcu_comp dcu_arb dcu_fp "
1623                         "ch_idle_dur ch_idle_dur_val txfifo_val0 txfifo_val1 "
1624                         "txfifo_dcu0 txfifo_dcu1 pcu_obs AR_CR\n");
1625
1626         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1627                 qcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[0]);
1628                 dcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[4]);
1629
1630                 len += snprintf(buf + len, size - len, "%4d %5x %5x ", sampidx,
1631                         (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x003c0000) >> 18,
1632                         (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x03c00000) >> 22);
1633                 len += snprintf(buf + len, size - len, "%7x %8x ",
1634                         (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x1c000000) >> 26,
1635                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x3));
1636                 len += snprintf(buf + len, size - len, "%7x %7x ",
1637                         (ATH_SAMP_DBG(dma_dbg_reg_vals[5]) & 0x06000000) >> 25,
1638                         (ATH_SAMP_DBG(dma_dbg_reg_vals[5]) & 0x38000000) >> 27);
1639                 len += snprintf(buf + len, size - len, "%7d %12d ",
1640                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x000003fc) >> 2,
1641                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00000400) >> 10);
1642                 len += snprintf(buf + len, size - len, "%12d %12d ",
1643                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00000800) >> 11,
1644                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00001000) >> 12);
1645                 len += snprintf(buf + len, size - len, "%12d %12d ",
1646                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x0001e000) >> 13,
1647                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x001e0000) >> 17);
1648                 len += snprintf(buf + len, size - len, "0x%07x 0x%07x\n",
1649                                 ATH_SAMP_DBG(pcu_obs), ATH_SAMP_DBG(pcu_cr));
1650         }
1651
1652         len += snprintf(buf + len, size - len,
1653                         "Sample ChNoise Chain privNF #Reading Readings\n");
1654         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1655                 h = ATH_SAMP_DBG(nfCalHist);
1656                 if (!ATH_SAMP_DBG(noise))
1657                         continue;
1658
1659                 for (i = 0; i < NUM_NF_READINGS; i++) {
1660                         if (!(chainmask & (1 << i)) ||
1661                             ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
1662                                 continue;
1663
1664                         nread = AR_PHY_CCA_FILTERWINDOW_LENGTH -
1665                                 h[i].invalidNFcount;
1666                         len += snprintf(buf + len, size - len,
1667                                         "%4d %5d %4d\t   %d\t %d\t",
1668                                         sampidx, ATH_SAMP_DBG(noise),
1669                                         i, h[i].privNF, nread);
1670                         for (j = 0; j < nread; j++)
1671                                 len += snprintf(buf + len, size - len,
1672                                         " %d", h[i].nfCalBuffer[j]);
1673                         len += snprintf(buf + len, size - len, "\n");
1674                 }
1675         }
1676         len += snprintf(buf + len, size - len, "\nCycle counters:\n"
1677                         "Sample Total    Rxbusy   Rxframes Txframes\n");
1678         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1679                 if (!ATH_SAMP_DBG(cc.cycles))
1680                         continue;
1681                 len += snprintf(buf + len, size - len,
1682                                 "%4d %08x %08x %08x %08x\n",
1683                                 sampidx, ATH_SAMP_DBG(cc.cycles),
1684                                 ATH_SAMP_DBG(cc.rx_busy),
1685                                 ATH_SAMP_DBG(cc.rx_frame),
1686                                 ATH_SAMP_DBG(cc.tx_frame));
1687         }
1688
1689         len += snprintf(buf + len, size - len, "Tx status Dump :\n");
1690         len += snprintf(buf + len, size - len,
1691                         "Sample rssi:- ctl0 ctl1 ctl2 ext0 ext1 ext2 comb "
1692                         "isok rts_fail data_fail rate tid qid "
1693                                         "ba_low  ba_high tx_before(ms)\n");
1694         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1695                 for (i = 0; i < ATH_DBG_MAX_SAMPLES; i++) {
1696                         if (!ATH_SAMP_DBG(ts[i].jiffies))
1697                                 continue;
1698                         len += snprintf(buf + len, size - len, "%-14d"
1699                                 "%-4d %-4d %-4d %-4d %-4d %-4d %-4d %-4d %-8d "
1700                                 "%-9d %-4d %-3d %-3d %08x %08x %-11d\n",
1701                                 sampidx,
1702                                 ATH_SAMP_DBG(ts[i].rssi_ctl0),
1703                                 ATH_SAMP_DBG(ts[i].rssi_ctl1),
1704                                 ATH_SAMP_DBG(ts[i].rssi_ctl2),
1705                                 ATH_SAMP_DBG(ts[i].rssi_ext0),
1706                                 ATH_SAMP_DBG(ts[i].rssi_ext1),
1707                                 ATH_SAMP_DBG(ts[i].rssi_ext2),
1708                                 ATH_SAMP_DBG(ts[i].rssi),
1709                                 ATH_SAMP_DBG(ts[i].isok),
1710                                 ATH_SAMP_DBG(ts[i].rts_fail_cnt),
1711                                 ATH_SAMP_DBG(ts[i].data_fail_cnt),
1712                                 ATH_SAMP_DBG(ts[i].rateindex),
1713                                 ATH_SAMP_DBG(ts[i].tid),
1714                                 ATH_SAMP_DBG(ts[i].qid),
1715                                 ATH_SAMP_DBG(ts[i].ba_low),
1716                                 ATH_SAMP_DBG(ts[i].ba_high),
1717                                 jiffies_to_msecs(jiffies -
1718                                         ATH_SAMP_DBG(ts[i].jiffies)));
1719                 }
1720         }
1721
1722         len += snprintf(buf + len, size - len, "Rx status Dump :\n");
1723         len += snprintf(buf + len, size - len, "Sample rssi:- ctl0 ctl1 ctl2 "
1724                         "ext0 ext1 ext2 comb beacon ant rate rx_before(ms)\n");
1725         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1726                 for (i = 0; i < ATH_DBG_MAX_SAMPLES; i++) {
1727                         if (!ATH_SAMP_DBG(rs[i].jiffies))
1728                                 continue;
1729                         len += snprintf(buf + len, size - len, "%-14d"
1730                                 "%-4d %-4d %-4d %-4d %-4d %-4d %-4d %-9s %-2d %02x %-13d\n",
1731                                 sampidx,
1732                                 ATH_SAMP_DBG(rs[i].rssi_ctl0),
1733                                 ATH_SAMP_DBG(rs[i].rssi_ctl1),
1734                                 ATH_SAMP_DBG(rs[i].rssi_ctl2),
1735                                 ATH_SAMP_DBG(rs[i].rssi_ext0),
1736                                 ATH_SAMP_DBG(rs[i].rssi_ext1),
1737                                 ATH_SAMP_DBG(rs[i].rssi_ext2),
1738                                 ATH_SAMP_DBG(rs[i].rssi),
1739                                 ATH_SAMP_DBG(rs[i].is_mybeacon) ?
1740                                 "True" : "False",
1741                                 ATH_SAMP_DBG(rs[i].antenna),
1742                                 ATH_SAMP_DBG(rs[i].rate),
1743                                 jiffies_to_msecs(jiffies -
1744                                         ATH_SAMP_DBG(rs[i].jiffies)));
1745                 }
1746         }
1747
1748         vfree(bb_mac_samp);
1749         file->private_data = buf;
1750
1751         return 0;
1752 #undef ATH_SAMP_DBG
1753 }
1754
1755 static const struct file_operations fops_samps = {
1756         .open = open_file_bb_mac_samps,
1757         .read = ath9k_debugfs_read_buf,
1758         .release = ath9k_debugfs_release_buf,
1759         .owner = THIS_MODULE,
1760         .llseek = default_llseek,
1761 };
1762
1763 #endif
1764
1765 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1766 static ssize_t read_file_btcoex(struct file *file, char __user *user_buf,
1767                                 size_t count, loff_t *ppos)
1768 {
1769         struct ath_softc *sc = file->private_data;
1770         u32 len = 0, size = 1500;
1771         char *buf;
1772         size_t retval;
1773
1774         buf = kzalloc(size, GFP_KERNEL);
1775         if (buf == NULL)
1776                 return -ENOMEM;
1777
1778         if (!sc->sc_ah->common.btcoex_enabled) {
1779                 len = snprintf(buf, size, "%s\n",
1780                                "BTCOEX is disabled");
1781                 goto exit;
1782         }
1783
1784         len = ath9k_dump_btcoex(sc, buf, size);
1785 exit:
1786         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1787         kfree(buf);
1788
1789         return retval;
1790 }
1791
1792 static const struct file_operations fops_btcoex = {
1793         .read = read_file_btcoex,
1794         .open = simple_open,
1795         .owner = THIS_MODULE,
1796         .llseek = default_llseek,
1797 };
1798 #endif
1799
1800 static ssize_t read_file_node_stat(struct file *file, char __user *user_buf,
1801                                    size_t count, loff_t *ppos)
1802 {
1803         struct ath_node *an = file->private_data;
1804         struct ath_softc *sc = an->sc;
1805         struct ath_atx_tid *tid;
1806         struct ath_atx_ac *ac;
1807         struct ath_txq *txq;
1808         u32 len = 0, size = 4096;
1809         char *buf;
1810         size_t retval;
1811         int tidno, acno;
1812
1813         buf = kzalloc(size, GFP_KERNEL);
1814         if (buf == NULL)
1815                 return -ENOMEM;
1816
1817         if (!an->sta->ht_cap.ht_supported) {
1818                 len = snprintf(buf, size, "%s\n",
1819                                "HT not supported");
1820                 goto exit;
1821         }
1822
1823         len = snprintf(buf, size, "Max-AMPDU: %d\n",
1824                        an->maxampdu);
1825         len += snprintf(buf + len, size - len, "MPDU Density: %d\n\n",
1826                         an->mpdudensity);
1827
1828         len += snprintf(buf + len, size - len,
1829                         "%2s%7s\n", "AC", "SCHED");
1830
1831         for (acno = 0, ac = &an->ac[acno];
1832              acno < IEEE80211_NUM_ACS; acno++, ac++) {
1833                 txq = ac->txq;
1834                 ath_txq_lock(sc, txq);
1835                 len += snprintf(buf + len, size - len,
1836                                 "%2d%7d\n",
1837                                 acno, ac->sched);
1838                 ath_txq_unlock(sc, txq);
1839         }
1840
1841         len += snprintf(buf + len, size - len,
1842                         "\n%3s%11s%10s%10s%10s%10s%9s%6s%8s\n",
1843                         "TID", "SEQ_START", "SEQ_NEXT", "BAW_SIZE",
1844                         "BAW_HEAD", "BAW_TAIL", "BAR_IDX", "SCHED", "PAUSED");
1845
1846         for (tidno = 0, tid = &an->tid[tidno];
1847              tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
1848                 txq = tid->ac->txq;
1849                 ath_txq_lock(sc, txq);
1850                 len += snprintf(buf + len, size - len,
1851                                 "%3d%11d%10d%10d%10d%10d%9d%6d%8d\n",
1852                                 tid->tidno, tid->seq_start, tid->seq_next,
1853                                 tid->baw_size, tid->baw_head, tid->baw_tail,
1854                                 tid->bar_index, tid->sched, tid->paused);
1855                 ath_txq_unlock(sc, txq);
1856         }
1857 exit:
1858         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1859         kfree(buf);
1860
1861         return retval;
1862 }
1863
1864 static const struct file_operations fops_node_stat = {
1865         .read = read_file_node_stat,
1866         .open = simple_open,
1867         .owner = THIS_MODULE,
1868         .llseek = default_llseek,
1869 };
1870
1871 void ath9k_sta_add_debugfs(struct ieee80211_hw *hw,
1872                            struct ieee80211_vif *vif,
1873                            struct ieee80211_sta *sta,
1874                            struct dentry *dir)
1875 {
1876         struct ath_node *an = (struct ath_node *)sta->drv_priv;
1877         an->node_stat = debugfs_create_file("node_stat", S_IRUGO,
1878                                             dir, an, &fops_node_stat);
1879 }
1880
1881 void ath9k_sta_remove_debugfs(struct ieee80211_hw *hw,
1882                               struct ieee80211_vif *vif,
1883                               struct ieee80211_sta *sta,
1884                               struct dentry *dir)
1885 {
1886         struct ath_node *an = (struct ath_node *)sta->drv_priv;
1887         debugfs_remove(an->node_stat);
1888 }
1889
1890 /* Ethtool support for get-stats */
1891
1892 #define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
1893 static const char ath9k_gstrings_stats[][ETH_GSTRING_LEN] = {
1894         "tx_pkts_nic",
1895         "tx_bytes_nic",
1896         "rx_pkts_nic",
1897         "rx_bytes_nic",
1898         AMKSTR(d_tx_pkts),
1899         AMKSTR(d_tx_bytes),
1900         AMKSTR(d_tx_mpdus_queued),
1901         AMKSTR(d_tx_mpdus_completed),
1902         AMKSTR(d_tx_mpdu_xretries),
1903         AMKSTR(d_tx_aggregates),
1904         AMKSTR(d_tx_ampdus_queued_hw),
1905         AMKSTR(d_tx_ampdus_queued_sw),
1906         AMKSTR(d_tx_ampdus_completed),
1907         AMKSTR(d_tx_ampdu_retries),
1908         AMKSTR(d_tx_ampdu_xretries),
1909         AMKSTR(d_tx_fifo_underrun),
1910         AMKSTR(d_tx_op_exceeded),
1911         AMKSTR(d_tx_timer_expiry),
1912         AMKSTR(d_tx_desc_cfg_err),
1913         AMKSTR(d_tx_data_underrun),
1914         AMKSTR(d_tx_delim_underrun),
1915         "d_rx_crc_err",
1916         "d_rx_decrypt_crc_err",
1917         "d_rx_phy_err",
1918         "d_rx_mic_err",
1919         "d_rx_pre_delim_crc_err",
1920         "d_rx_post_delim_crc_err",
1921         "d_rx_decrypt_busy_err",
1922
1923         "d_rx_phyerr_radar",
1924         "d_rx_phyerr_ofdm_timing",
1925         "d_rx_phyerr_cck_timing",
1926
1927 };
1928 #define ATH9K_SSTATS_LEN ARRAY_SIZE(ath9k_gstrings_stats)
1929
1930 void ath9k_get_et_strings(struct ieee80211_hw *hw,
1931                           struct ieee80211_vif *vif,
1932                           u32 sset, u8 *data)
1933 {
1934         if (sset == ETH_SS_STATS)
1935                 memcpy(data, *ath9k_gstrings_stats,
1936                        sizeof(ath9k_gstrings_stats));
1937 }
1938
1939 int ath9k_get_et_sset_count(struct ieee80211_hw *hw,
1940                             struct ieee80211_vif *vif, int sset)
1941 {
1942         if (sset == ETH_SS_STATS)
1943                 return ATH9K_SSTATS_LEN;
1944         return 0;
1945 }
1946
1947 #define AWDATA(elem)                                                    \
1948         do {                                                            \
1949                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].elem; \
1950                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].elem; \
1951                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].elem; \
1952                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].elem; \
1953         } while (0)
1954
1955 #define AWDATA_RX(elem)                                         \
1956         do {                                                    \
1957                 data[i++] = sc->debug.stats.rxstats.elem;       \
1958         } while (0)
1959
1960 void ath9k_get_et_stats(struct ieee80211_hw *hw,
1961                         struct ieee80211_vif *vif,
1962                         struct ethtool_stats *stats, u64 *data)
1963 {
1964         struct ath_softc *sc = hw->priv;
1965         int i = 0;
1966
1967         data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_pkts_all +
1968                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_pkts_all +
1969                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_pkts_all +
1970                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_pkts_all);
1971         data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_bytes_all +
1972                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_bytes_all +
1973                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_bytes_all +
1974                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_bytes_all);
1975         AWDATA_RX(rx_pkts_all);
1976         AWDATA_RX(rx_bytes_all);
1977
1978         AWDATA(tx_pkts_all);
1979         AWDATA(tx_bytes_all);
1980         AWDATA(queued);
1981         AWDATA(completed);
1982         AWDATA(xretries);
1983         AWDATA(a_aggr);
1984         AWDATA(a_queued_hw);
1985         AWDATA(a_queued_sw);
1986         AWDATA(a_completed);
1987         AWDATA(a_retries);
1988         AWDATA(a_xretries);
1989         AWDATA(fifo_underrun);
1990         AWDATA(xtxop);
1991         AWDATA(timer_exp);
1992         AWDATA(desc_cfg_err);
1993         AWDATA(data_underrun);
1994         AWDATA(delim_underrun);
1995
1996         AWDATA_RX(crc_err);
1997         AWDATA_RX(decrypt_crc_err);
1998         AWDATA_RX(phy_err);
1999         AWDATA_RX(mic_err);
2000         AWDATA_RX(pre_delim_crc_err);
2001         AWDATA_RX(post_delim_crc_err);
2002         AWDATA_RX(decrypt_busy_err);
2003
2004         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_RADAR]);
2005         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_OFDM_TIMING]);
2006         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_CCK_TIMING]);
2007
2008         WARN_ON(i != ATH9K_SSTATS_LEN);
2009 }
2010
2011 void ath9k_deinit_debug(struct ath_softc *sc)
2012 {
2013         if (config_enabled(CONFIG_ATH9K_DEBUGFS) && sc->rfs_chan_spec_scan) {
2014                 relay_close(sc->rfs_chan_spec_scan);
2015                 sc->rfs_chan_spec_scan = NULL;
2016         }
2017 }
2018
2019 int ath9k_init_debug(struct ath_hw *ah)
2020 {
2021         struct ath_common *common = ath9k_hw_common(ah);
2022         struct ath_softc *sc = (struct ath_softc *) common->priv;
2023
2024         sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
2025                                                    sc->hw->wiphy->debugfsdir);
2026         if (!sc->debug.debugfs_phy)
2027                 return -ENOMEM;
2028
2029 #ifdef CONFIG_ATH_DEBUG
2030         debugfs_create_file("debug", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2031                             sc, &fops_debug);
2032 #endif
2033
2034         ath9k_dfs_init_debug(sc);
2035
2036         debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
2037                             &fops_dma);
2038         debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc,
2039                             &fops_interrupt);
2040         debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc,
2041                             &fops_xmit);
2042         debugfs_create_file("queues", S_IRUSR, sc->debug.debugfs_phy, sc,
2043                             &fops_queues);
2044         debugfs_create_u32("qlen_bk", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2045                            &sc->tx.txq_max_pending[IEEE80211_AC_BK]);
2046         debugfs_create_u32("qlen_be", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2047                            &sc->tx.txq_max_pending[IEEE80211_AC_BE]);
2048         debugfs_create_u32("qlen_vi", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2049                            &sc->tx.txq_max_pending[IEEE80211_AC_VI]);
2050         debugfs_create_u32("qlen_vo", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2051                            &sc->tx.txq_max_pending[IEEE80211_AC_VO]);
2052         debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc,
2053                             &fops_misc);
2054         debugfs_create_file("reset", S_IRUSR, sc->debug.debugfs_phy, sc,
2055                             &fops_reset);
2056         debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc,
2057                             &fops_recv);
2058         debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
2059                             sc->debug.debugfs_phy, sc, &fops_rx_chainmask);
2060         debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
2061                             sc->debug.debugfs_phy, sc, &fops_tx_chainmask);
2062         debugfs_create_file("disable_ani", S_IRUSR | S_IWUSR,
2063                             sc->debug.debugfs_phy, sc, &fops_disable_ani);
2064         debugfs_create_bool("paprd", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2065                             &sc->sc_ah->config.enable_paprd);
2066         debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2067                             sc, &fops_regidx);
2068         debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2069                             sc, &fops_regval);
2070         debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
2071                             sc->debug.debugfs_phy,
2072                             &ah->config.cwm_ignore_extcca);
2073         debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc,
2074                             &fops_regdump);
2075         debugfs_create_file("dump_nfcal", S_IRUSR, sc->debug.debugfs_phy, sc,
2076                             &fops_dump_nfcal);
2077         debugfs_create_file("base_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
2078                             &fops_base_eeprom);
2079         debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
2080                             &fops_modal_eeprom);
2081         sc->rfs_chan_spec_scan = relay_open("spectral_scan",
2082                                             sc->debug.debugfs_phy,
2083                                             1024, 256, &rfs_spec_scan_cb,
2084                                             NULL);
2085         debugfs_create_file("spectral_scan_ctl", S_IRUSR | S_IWUSR,
2086                             sc->debug.debugfs_phy, sc,
2087                             &fops_spec_scan_ctl);
2088         debugfs_create_file("spectral_short_repeat", S_IRUSR | S_IWUSR,
2089                             sc->debug.debugfs_phy, sc,
2090                             &fops_spectral_short_repeat);
2091         debugfs_create_file("spectral_count", S_IRUSR | S_IWUSR,
2092                             sc->debug.debugfs_phy, sc, &fops_spectral_count);
2093         debugfs_create_file("spectral_period", S_IRUSR | S_IWUSR,
2094                             sc->debug.debugfs_phy, sc, &fops_spectral_period);
2095         debugfs_create_file("spectral_fft_period", S_IRUSR | S_IWUSR,
2096                             sc->debug.debugfs_phy, sc,
2097                             &fops_spectral_fft_period);
2098
2099 #ifdef CONFIG_ATH9K_MAC_DEBUG
2100         debugfs_create_file("samples", S_IRUSR, sc->debug.debugfs_phy, sc,
2101                             &fops_samps);
2102 #endif
2103         debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
2104                            sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
2105         debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
2106                            sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
2107         debugfs_create_file("diversity", S_IRUSR | S_IWUSR,
2108                             sc->debug.debugfs_phy, sc, &fops_ant_diversity);
2109 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
2110         debugfs_create_file("btcoex", S_IRUSR, sc->debug.debugfs_phy, sc,
2111                             &fops_btcoex);
2112 #endif
2113         return 0;
2114 }