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 (strict_strtoul(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 (strict_strtoul(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 (strict_strtoul(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 (strict_strtoul(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 (strict_strtoul(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("FIFO Underrun:   ", fifo_underrun);
 541         PR("TXOP Exceeded:   ", xtxop);
 542         PR("TXTIMER Expiry:  ", timer_exp);
 543         PR("DESC CFG Error:  ", desc_cfg_err);
 544         PR("DATA Underrun:   ", data_underrun);
 545         PR("DELIM Underrun:  ", delim_underrun);
 546         PR("TX-Pkts-All:     ", tx_pkts_all);
 547         PR("TX-Bytes-All:    ", tx_bytes_all);
 548         PR("HW-put-tx-buf:   ", puttxbuf);
 549         PR("HW-tx-start:     ", txstart);
 550         PR("HW-tx-proc-desc: ", txprocdesc);
 551         PR("TX-Failed:       ", txfailed);
 552
 553         if (len > size)
 554                 len = size;
 555
 556         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 557         kfree(buf);
 558
 559         return retval;
 560 }
 561
 562 static ssize_t read_file_queues(struct file *file, char __user *user_buf,
 563                                 size_t count, loff_t *ppos)
 564 {
 565         struct ath_softc *sc = file->private_data;
 566         struct ath_txq *txq;
 567         char *buf;
 568         unsigned int len = 0, size = 1024;
 569         ssize_t retval = 0;
 570         int i;
 571         char *qname[4] = {"VO", "VI", "BE", "BK"};
 572
 573         buf = kzalloc(size, GFP_KERNEL);
 574         if (buf == NULL)
 575                 return -ENOMEM;
 576
 577         for (i = 0; i < IEEE80211_NUM_ACS; i++) {
 578                 txq = sc->tx.txq_map[i];
 579                 len += snprintf(buf + len, size - len, "(%s): ", qname[i]);
 580
 581                 ath_txq_lock(sc, txq);
 582
 583                 len += snprintf(buf + len, size - len, "%s: %d ",
 584                                 "qnum", txq->axq_qnum);
 585                 len += snprintf(buf + len, size - len, "%s: %2d ",
 586                                 "qdepth", txq->axq_depth);
 587                 len += snprintf(buf + len, size - len, "%s: %2d ",
 588                                 "ampdu-depth", txq->axq_ampdu_depth);
 589                 len += snprintf(buf + len, size - len, "%s: %3d ",
 590                                 "pending", txq->pending_frames);
 591                 len += snprintf(buf + len, size - len, "%s: %d\n",
 592                                 "stopped", txq->stopped);
 593
 594                 ath_txq_unlock(sc, txq);
 595         }
 596
 597         if (len > size)
 598                 len = size;
 599
 600         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 601         kfree(buf);
 602
 603         return retval;
 604 }
 605
 606 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
 607                               size_t count, loff_t *ppos)
 608 {
 609         struct ath_softc *sc = file->private_data;
 610         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 611         struct ieee80211_hw *hw = sc->hw;
 612         struct ath9k_vif_iter_data iter_data;
 613         char buf[512];
 614         unsigned int len = 0;
 615         ssize_t retval = 0;
 616         unsigned int reg;
 617         u32 rxfilter;
 618
 619         len += snprintf(buf + len, sizeof(buf) - len,
 620                         "BSSID: %pM\n", common->curbssid);
 621         len += snprintf(buf + len, sizeof(buf) - len,
 622                         "BSSID-MASK: %pM\n", common->bssidmask);
 623         len += snprintf(buf + len, sizeof(buf) - len,
 624                         "OPMODE: %s\n", ath_opmode_to_string(sc->sc_ah->opmode));
 625
 626         ath9k_ps_wakeup(sc);
 627         rxfilter = ath9k_hw_getrxfilter(sc->sc_ah);
 628         ath9k_ps_restore(sc);
 629
 630         len += snprintf(buf + len, sizeof(buf) - len,
 631                         "RXFILTER: 0x%x", rxfilter);
 632
 633         if (rxfilter & ATH9K_RX_FILTER_UCAST)
 634                 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
 635         if (rxfilter & ATH9K_RX_FILTER_MCAST)
 636                 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
 637         if (rxfilter & ATH9K_RX_FILTER_BCAST)
 638                 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
 639         if (rxfilter & ATH9K_RX_FILTER_CONTROL)
 640                 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
 641         if (rxfilter & ATH9K_RX_FILTER_BEACON)
 642                 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
 643         if (rxfilter & ATH9K_RX_FILTER_PROM)
 644                 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
 645         if (rxfilter & ATH9K_RX_FILTER_PROBEREQ)
 646                 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
 647         if (rxfilter & ATH9K_RX_FILTER_PHYERR)
 648                 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR");
 649         if (rxfilter & ATH9K_RX_FILTER_MYBEACON)
 650                 len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON");
 651         if (rxfilter & ATH9K_RX_FILTER_COMP_BAR)
 652                 len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
 653         if (rxfilter & ATH9K_RX_FILTER_PSPOLL)
 654                 len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL");
 655         if (rxfilter & ATH9K_RX_FILTER_PHYRADAR)
 656                 len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
 657         if (rxfilter & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
 658                 len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL");
 659         if (rxfilter & ATH9K_RX_FILTER_CONTROL_WRAPPER)
 660                 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL_WRAPPER");
 661
 662         len += snprintf(buf + len, sizeof(buf) - len, "\n");
 663
 664         reg = sc->sc_ah->imask;
 665
 666         len += snprintf(buf + len, sizeof(buf) - len, "INTERRUPT-MASK: 0x%x", reg);
 667
 668         if (reg & ATH9K_INT_SWBA)
 669                 len += snprintf(buf + len, sizeof(buf) - len, " SWBA");
 670         if (reg & ATH9K_INT_BMISS)
 671                 len += snprintf(buf + len, sizeof(buf) - len, " BMISS");
 672         if (reg & ATH9K_INT_CST)
 673                 len += snprintf(buf + len, sizeof(buf) - len, " CST");
 674         if (reg & ATH9K_INT_RX)
 675                 len += snprintf(buf + len, sizeof(buf) - len, " RX");
 676         if (reg & ATH9K_INT_RXHP)
 677                 len += snprintf(buf + len, sizeof(buf) - len, " RXHP");
 678         if (reg & ATH9K_INT_RXLP)
 679                 len += snprintf(buf + len, sizeof(buf) - len, " RXLP");
 680         if (reg & ATH9K_INT_BB_WATCHDOG)
 681                 len += snprintf(buf + len, sizeof(buf) - len, " BB_WATCHDOG");
 682
 683         len += snprintf(buf + len, sizeof(buf) - len, "\n");
 684
 685         ath9k_calculate_iter_data(hw, NULL, &iter_data);
 686
 687         len += snprintf(buf + len, sizeof(buf) - len,
 688                         "VIF-COUNTS: AP: %i STA: %i MESH: %i WDS: %i"
 689                         " ADHOC: %i TOTAL: %hi BEACON-VIF: %hi\n",
 690                         iter_data.naps, iter_data.nstations, iter_data.nmeshes,
 691                         iter_data.nwds, iter_data.nadhocs,
 692                         sc->nvifs, sc->nbcnvifs);
 693
 694         if (len > sizeof(buf))
 695                 len = sizeof(buf);
 696
 697         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 698         return retval;
 699 }
 700
 701 static ssize_t read_file_reset(struct file *file, char __user *user_buf,
 702                                size_t count, loff_t *ppos)
 703 {
 704         struct ath_softc *sc = file->private_data;
 705         char buf[512];
 706         unsigned int len = 0;
 707
 708         len += snprintf(buf + len, sizeof(buf) - len,
 709                         "%17s: %2d\n", "Baseband Hang",
 710                         sc->debug.stats.reset[RESET_TYPE_BB_HANG]);
 711         len += snprintf(buf + len, sizeof(buf) - len,
 712                         "%17s: %2d\n", "Baseband Watchdog",
 713                         sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG]);
 714         len += snprintf(buf + len, sizeof(buf) - len,
 715                         "%17s: %2d\n", "Fatal HW Error",
 716                         sc->debug.stats.reset[RESET_TYPE_FATAL_INT]);
 717         len += snprintf(buf + len, sizeof(buf) - len,
 718                         "%17s: %2d\n", "TX HW error",
 719                         sc->debug.stats.reset[RESET_TYPE_TX_ERROR]);
 720         len += snprintf(buf + len, sizeof(buf) - len,
 721                         "%17s: %2d\n", "TX Path Hang",
 722                         sc->debug.stats.reset[RESET_TYPE_TX_HANG]);
 723         len += snprintf(buf + len, sizeof(buf) - len,
 724                         "%17s: %2d\n", "PLL RX Hang",
 725                         sc->debug.stats.reset[RESET_TYPE_PLL_HANG]);
 726         len += snprintf(buf + len, sizeof(buf) - len,
 727                         "%17s: %2d\n", "MCI Reset",
 728                         sc->debug.stats.reset[RESET_TYPE_MCI]);
 729
 730         if (len > sizeof(buf))
 731                 len = sizeof(buf);
 732
 733         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 734 }
 735
 736 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 737                        struct ath_tx_status *ts, struct ath_txq *txq,
 738                        unsigned int flags)
 739 {
 740 #define TX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].ts\
 741                         [sc->debug.tsidx].c)
 742         int qnum = txq->axq_qnum;
 743
 744         TX_STAT_INC(qnum, tx_pkts_all);
 745         sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
 746
 747         if (bf_isampdu(bf)) {
 748                 if (flags & ATH_TX_ERROR)
 749                         TX_STAT_INC(qnum, a_xretries);
 750                 else
 751                         TX_STAT_INC(qnum, a_completed);
 752         } else {
 753                 if (ts->ts_status & ATH9K_TXERR_XRETRY)
 754                         TX_STAT_INC(qnum, xretries);
 755                 else
 756                         TX_STAT_INC(qnum, completed);
 757         }
 758
 759         if (ts->ts_status & ATH9K_TXERR_FIFO)
 760                 TX_STAT_INC(qnum, fifo_underrun);
 761         if (ts->ts_status & ATH9K_TXERR_XTXOP)
 762                 TX_STAT_INC(qnum, xtxop);
 763         if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
 764                 TX_STAT_INC(qnum, timer_exp);
 765         if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
 766                 TX_STAT_INC(qnum, desc_cfg_err);
 767         if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
 768                 TX_STAT_INC(qnum, data_underrun);
 769         if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
 770                 TX_STAT_INC(qnum, delim_underrun);
 771
 772 #ifdef CONFIG_ATH9K_MAC_DEBUG
 773         spin_lock(&sc->debug.samp_lock);
 774         TX_SAMP_DBG(jiffies) = jiffies;
 775         TX_SAMP_DBG(rssi_ctl0) = ts->ts_rssi_ctl0;
 776         TX_SAMP_DBG(rssi_ctl1) = ts->ts_rssi_ctl1;
 777         TX_SAMP_DBG(rssi_ctl2) = ts->ts_rssi_ctl2;
 778         TX_SAMP_DBG(rssi_ext0) = ts->ts_rssi_ext0;
 779         TX_SAMP_DBG(rssi_ext1) = ts->ts_rssi_ext1;
 780         TX_SAMP_DBG(rssi_ext2) = ts->ts_rssi_ext2;
 781         TX_SAMP_DBG(rateindex) = ts->ts_rateindex;
 782         TX_SAMP_DBG(isok) = !!(ts->ts_status & ATH9K_TXERR_MASK);
 783         TX_SAMP_DBG(rts_fail_cnt) = ts->ts_shortretry;
 784         TX_SAMP_DBG(data_fail_cnt) = ts->ts_longretry;
 785         TX_SAMP_DBG(rssi) = ts->ts_rssi;
 786         TX_SAMP_DBG(tid) = ts->tid;
 787         TX_SAMP_DBG(qid) = ts->qid;
 788
 789         if (ts->ts_flags & ATH9K_TX_BA) {
 790                 TX_SAMP_DBG(ba_low) = ts->ba_low;
 791                 TX_SAMP_DBG(ba_high) = ts->ba_high;
 792         } else {
 793                 TX_SAMP_DBG(ba_low) = 0;
 794                 TX_SAMP_DBG(ba_high) = 0;
 795         }
 796
 797         sc->debug.tsidx = (sc->debug.tsidx + 1) % ATH_DBG_MAX_SAMPLES;
 798         spin_unlock(&sc->debug.samp_lock);
 799 #endif
 800
 801 #undef TX_SAMP_DBG
 802 }
 803
 804 static const struct file_operations fops_xmit = {
 805         .read = read_file_xmit,
 806         .open = simple_open,
 807         .owner = THIS_MODULE,
 808         .llseek = default_llseek,
 809 };
 810
 811 static const struct file_operations fops_queues = {
 812         .read = read_file_queues,
 813         .open = simple_open,
 814         .owner = THIS_MODULE,
 815         .llseek = default_llseek,
 816 };
 817
 818 static const struct file_operations fops_misc = {
 819         .read = read_file_misc,
 820         .open = simple_open,
 821         .owner = THIS_MODULE,
 822         .llseek = default_llseek,
 823 };
 824
 825 static const struct file_operations fops_reset = {
 826         .read = read_file_reset,
 827         .open = simple_open,
 828         .owner = THIS_MODULE,
 829         .llseek = default_llseek,
 830 };
 831
 832 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 833                               size_t count, loff_t *ppos)
 834 {
 835 #define PHY_ERR(s, p) \
 836         len += snprintf(buf + len, size - len, "%22s : %10u\n", s, \
 837                         sc->debug.stats.rxstats.phy_err_stats[p]);
 838
 839 #define RXS_ERR(s, e)                                       \
 840         do {                                                \
 841                 len += snprintf(buf + len, size - len,      \
 842                                 "%22s : %10u\n", s,         \
 843                                 sc->debug.stats.rxstats.e); \
 844         } while (0)
 845
 846         struct ath_softc *sc = file->private_data;
 847         char *buf;
 848         unsigned int len = 0, size = 1600;
 849         ssize_t retval = 0;
 850
 851         buf = kzalloc(size, GFP_KERNEL);
 852         if (buf == NULL)
 853                 return -ENOMEM;
 854
 855         RXS_ERR("CRC ERR", crc_err);
 856         RXS_ERR("DECRYPT CRC ERR", decrypt_crc_err);
 857         RXS_ERR("PHY ERR", phy_err);
 858         RXS_ERR("MIC ERR", mic_err);
 859         RXS_ERR("PRE-DELIM CRC ERR", pre_delim_crc_err);
 860         RXS_ERR("POST-DELIM CRC ERR", post_delim_crc_err);
 861         RXS_ERR("DECRYPT BUSY ERR", decrypt_busy_err);
 862         RXS_ERR("RX-LENGTH-ERR", rx_len_err);
 863         RXS_ERR("RX-OOM-ERR", rx_oom_err);
 864         RXS_ERR("RX-RATE-ERR", rx_rate_err);
 865         RXS_ERR("RX-TOO-MANY-FRAGS", rx_too_many_frags_err);
 866
 867         PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN);
 868         PHY_ERR("TIMING ERR", ATH9K_PHYERR_TIMING);
 869         PHY_ERR("PARITY ERR", ATH9K_PHYERR_PARITY);
 870         PHY_ERR("RATE ERR", ATH9K_PHYERR_RATE);
 871         PHY_ERR("LENGTH ERR", ATH9K_PHYERR_LENGTH);
 872         PHY_ERR("RADAR ERR", ATH9K_PHYERR_RADAR);
 873         PHY_ERR("SERVICE ERR", ATH9K_PHYERR_SERVICE);
 874         PHY_ERR("TOR ERR", ATH9K_PHYERR_TOR);
 875         PHY_ERR("OFDM-TIMING ERR", ATH9K_PHYERR_OFDM_TIMING);
 876         PHY_ERR("OFDM-SIGNAL-PARITY ERR", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
 877         PHY_ERR("OFDM-RATE ERR", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
 878         PHY_ERR("OFDM-LENGTH ERR", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
 879         PHY_ERR("OFDM-POWER-DROP ERR", ATH9K_PHYERR_OFDM_POWER_DROP);
 880         PHY_ERR("OFDM-SERVICE ERR", ATH9K_PHYERR_OFDM_SERVICE);
 881         PHY_ERR("OFDM-RESTART ERR", ATH9K_PHYERR_OFDM_RESTART);
 882         PHY_ERR("FALSE-RADAR-EXT ERR", ATH9K_PHYERR_FALSE_RADAR_EXT);
 883         PHY_ERR("CCK-TIMING ERR", ATH9K_PHYERR_CCK_TIMING);
 884         PHY_ERR("CCK-HEADER-CRC ERR", ATH9K_PHYERR_CCK_HEADER_CRC);
 885         PHY_ERR("CCK-RATE ERR", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
 886         PHY_ERR("CCK-SERVICE ERR", ATH9K_PHYERR_CCK_SERVICE);
 887         PHY_ERR("CCK-RESTART ERR", ATH9K_PHYERR_CCK_RESTART);
 888         PHY_ERR("CCK-LENGTH ERR", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
 889         PHY_ERR("CCK-POWER-DROP ERR", ATH9K_PHYERR_CCK_POWER_DROP);
 890         PHY_ERR("HT-CRC ERR", ATH9K_PHYERR_HT_CRC_ERROR);
 891         PHY_ERR("HT-LENGTH ERR", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
 892         PHY_ERR("HT-RATE ERR", ATH9K_PHYERR_HT_RATE_ILLEGAL);
 893
 894         RXS_ERR("RX-Pkts-All", rx_pkts_all);
 895         RXS_ERR("RX-Bytes-All", rx_bytes_all);
 896         RXS_ERR("RX-Beacons", rx_beacons);
 897         RXS_ERR("RX-Frags", rx_frags);
 898         RXS_ERR("RX-Spectral", rx_spectral);
 899
 900         if (len > size)
 901                 len = size;
 902
 903         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 904         kfree(buf);
 905
 906         return retval;
 907
 908 #undef RXS_ERR
 909 #undef PHY_ERR
 910 }
 911
 912 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
 913 {
 914 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
 915 #define RX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].rs\
 916                         [sc->debug.rsidx].c)
 917
 918         RX_STAT_INC(rx_pkts_all);
 919         sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen;
 920
 921         if (rs->rs_status & ATH9K_RXERR_CRC)
 922                 RX_STAT_INC(crc_err);
 923         if (rs->rs_status & ATH9K_RXERR_DECRYPT)
 924                 RX_STAT_INC(decrypt_crc_err);
 925         if (rs->rs_status & ATH9K_RXERR_MIC)
 926                 RX_STAT_INC(mic_err);
 927         if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
 928                 RX_STAT_INC(pre_delim_crc_err);
 929         if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
 930                 RX_STAT_INC(post_delim_crc_err);
 931         if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
 932                 RX_STAT_INC(decrypt_busy_err);
 933
 934         if (rs->rs_status & ATH9K_RXERR_PHY) {
 935                 RX_STAT_INC(phy_err);
 936                 if (rs->rs_phyerr < ATH9K_PHYERR_MAX)
 937                         RX_PHY_ERR_INC(rs->rs_phyerr);
 938         }
 939
 940 #ifdef CONFIG_ATH9K_MAC_DEBUG
 941         spin_lock(&sc->debug.samp_lock);
 942         RX_SAMP_DBG(jiffies) = jiffies;
 943         RX_SAMP_DBG(rssi_ctl0) = rs->rs_rssi_ctl0;
 944         RX_SAMP_DBG(rssi_ctl1) = rs->rs_rssi_ctl1;
 945         RX_SAMP_DBG(rssi_ctl2) = rs->rs_rssi_ctl2;
 946         RX_SAMP_DBG(rssi_ext0) = rs->rs_rssi_ext0;
 947         RX_SAMP_DBG(rssi_ext1) = rs->rs_rssi_ext1;
 948         RX_SAMP_DBG(rssi_ext2) = rs->rs_rssi_ext2;
 949         RX_SAMP_DBG(antenna) = rs->rs_antenna;
 950         RX_SAMP_DBG(rssi) = rs->rs_rssi;
 951         RX_SAMP_DBG(rate) = rs->rs_rate;
 952         RX_SAMP_DBG(is_mybeacon) = rs->is_mybeacon;
 953
 954         sc->debug.rsidx = (sc->debug.rsidx + 1) % ATH_DBG_MAX_SAMPLES;
 955         spin_unlock(&sc->debug.samp_lock);
 956
 957 #endif
 958
 959 #undef RX_PHY_ERR_INC
 960 #undef RX_SAMP_DBG
 961 }
 962
 963 static const struct file_operations fops_recv = {
 964         .read = read_file_recv,
 965         .open = simple_open,
 966         .owner = THIS_MODULE,
 967         .llseek = default_llseek,
 968 };
 969
 970 static ssize_t read_file_spec_scan_ctl(struct file *file, char __user *user_buf,
 971                                        size_t count, loff_t *ppos)
 972 {
 973         struct ath_softc *sc = file->private_data;
 974         char *mode = "";
 975         unsigned int len;
 976
 977         switch (sc->spectral_mode) {
 978         case SPECTRAL_DISABLED:
 979                 mode = "disable";
 980                 break;
 981         case SPECTRAL_BACKGROUND:
 982                 mode = "background";
 983                 break;
 984         case SPECTRAL_CHANSCAN:
 985                 mode = "chanscan";
 986                 break;
 987         case SPECTRAL_MANUAL:
 988                 mode = "manual";
 989                 break;
 990         }
 991         len = strlen(mode);
 992         return simple_read_from_buffer(user_buf, count, ppos, mode, len);
 993 }
 994
 995 static ssize_t write_file_spec_scan_ctl(struct file *file,
 996                                         const char __user *user_buf,
 997                                         size_t count, loff_t *ppos)
 998 {
 999         struct ath_softc *sc = file->private_data;
1000         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1001         char buf[32];
1002         ssize_t len;
1003
1004         len = min(count, sizeof(buf) - 1);
1005         if (copy_from_user(buf, user_buf, len))
1006                 return -EFAULT;
1007
1008         buf[len] = '\0';
1009
1010         if (strncmp("trigger", buf, 7) == 0) {
1011                 ath9k_spectral_scan_trigger(sc->hw);
1012         } else if (strncmp("background", buf, 9) == 0) {
1013                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_BACKGROUND);
1014                 ath_dbg(common, CONFIG, "spectral scan: background mode enabled\n");
1015         } else if (strncmp("chanscan", buf, 8) == 0) {
1016                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_CHANSCAN);
1017                 ath_dbg(common, CONFIG, "spectral scan: channel scan mode enabled\n");
1018         } else if (strncmp("manual", buf, 6) == 0) {
1019                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_MANUAL);
1020                 ath_dbg(common, CONFIG, "spectral scan: manual mode enabled\n");
1021         } else if (strncmp("disable", buf, 7) == 0) {
1022                 ath9k_spectral_scan_config(sc->hw, SPECTRAL_DISABLED);
1023                 ath_dbg(common, CONFIG, "spectral scan: disabled\n");
1024         } else {
1025                 return -EINVAL;
1026         }
1027
1028         return count;
1029 }
1030
1031 static const struct file_operations fops_spec_scan_ctl = {
1032         .read = read_file_spec_scan_ctl,
1033         .write = write_file_spec_scan_ctl,
1034         .open = simple_open,
1035         .owner = THIS_MODULE,
1036         .llseek = default_llseek,
1037 };
1038
1039 static ssize_t read_file_spectral_short_repeat(struct file *file,
1040                                                char __user *user_buf,
1041                                                size_t count, loff_t *ppos)
1042 {
1043         struct ath_softc *sc = file->private_data;
1044         char buf[32];
1045         unsigned int len;
1046
1047         len = sprintf(buf, "%d\n", sc->spec_config.short_repeat);
1048         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1049 }
1050
1051 static ssize_t write_file_spectral_short_repeat(struct file *file,
1052                                                 const char __user *user_buf,
1053                                                 size_t count, loff_t *ppos)
1054 {
1055         struct ath_softc *sc = file->private_data;
1056         unsigned long val;
1057         char buf[32];
1058         ssize_t len;
1059
1060         len = min(count, sizeof(buf) - 1);
1061         if (copy_from_user(buf, user_buf, len))
1062                 return -EFAULT;
1063
1064         buf[len] = '\0';
1065         if (kstrtoul(buf, 0, &val))
1066                 return -EINVAL;
1067
1068         if (val < 0 || val > 1)
1069                 return -EINVAL;
1070
1071         sc->spec_config.short_repeat = val;
1072         return count;
1073 }
1074
1075 static const struct file_operations fops_spectral_short_repeat = {
1076         .read = read_file_spectral_short_repeat,
1077         .write = write_file_spectral_short_repeat,
1078         .open = simple_open,
1079         .owner = THIS_MODULE,
1080         .llseek = default_llseek,
1081 };
1082
1083 static ssize_t read_file_spectral_count(struct file *file,
1084                                         char __user *user_buf,
1085                                         size_t count, loff_t *ppos)
1086 {
1087         struct ath_softc *sc = file->private_data;
1088         char buf[32];
1089         unsigned int len;
1090
1091         len = sprintf(buf, "%d\n", sc->spec_config.count);
1092         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1093 }
1094
1095 static ssize_t write_file_spectral_count(struct file *file,
1096                                          const char __user *user_buf,
1097                                          size_t count, loff_t *ppos)
1098 {
1099         struct ath_softc *sc = file->private_data;
1100         unsigned long val;
1101         char buf[32];
1102         ssize_t len;
1103
1104         len = min(count, sizeof(buf) - 1);
1105         if (copy_from_user(buf, user_buf, len))
1106                 return -EFAULT;
1107
1108         buf[len] = '\0';
1109         if (kstrtoul(buf, 0, &val))
1110                 return -EINVAL;
1111
1112         if (val < 0 || val > 255)
1113                 return -EINVAL;
1114
1115         sc->spec_config.count = val;
1116         return count;
1117 }
1118
1119 static const struct file_operations fops_spectral_count = {
1120         .read = read_file_spectral_count,
1121         .write = write_file_spectral_count,
1122         .open = simple_open,
1123         .owner = THIS_MODULE,
1124         .llseek = default_llseek,
1125 };
1126
1127 static ssize_t read_file_spectral_period(struct file *file,
1128                                          char __user *user_buf,
1129                                          size_t count, loff_t *ppos)
1130 {
1131         struct ath_softc *sc = file->private_data;
1132         char buf[32];
1133         unsigned int len;
1134
1135         len = sprintf(buf, "%d\n", sc->spec_config.period);
1136         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1137 }
1138
1139 static ssize_t write_file_spectral_period(struct file *file,
1140                                           const char __user *user_buf,
1141                                           size_t count, loff_t *ppos)
1142 {
1143         struct ath_softc *sc = file->private_data;
1144         unsigned long val;
1145         char buf[32];
1146         ssize_t len;
1147
1148         len = min(count, sizeof(buf) - 1);
1149         if (copy_from_user(buf, user_buf, len))
1150                 return -EFAULT;
1151
1152         buf[len] = '\0';
1153         if (kstrtoul(buf, 0, &val))
1154                 return -EINVAL;
1155
1156         if (val < 0 || val > 255)
1157                 return -EINVAL;
1158
1159         sc->spec_config.period = val;
1160         return count;
1161 }
1162
1163 static const struct file_operations fops_spectral_period = {
1164         .read = read_file_spectral_period,
1165         .write = write_file_spectral_period,
1166         .open = simple_open,
1167         .owner = THIS_MODULE,
1168         .llseek = default_llseek,
1169 };
1170
1171 static ssize_t read_file_spectral_fft_period(struct file *file,
1172                                              char __user *user_buf,
1173                                              size_t count, loff_t *ppos)
1174 {
1175         struct ath_softc *sc = file->private_data;
1176         char buf[32];
1177         unsigned int len;
1178
1179         len = sprintf(buf, "%d\n", sc->spec_config.fft_period);
1180         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1181 }
1182
1183 static ssize_t write_file_spectral_fft_period(struct file *file,
1184                                               const char __user *user_buf,
1185                                               size_t count, loff_t *ppos)
1186 {
1187         struct ath_softc *sc = file->private_data;
1188         unsigned long val;
1189         char buf[32];
1190         ssize_t len;
1191
1192         len = min(count, sizeof(buf) - 1);
1193         if (copy_from_user(buf, user_buf, len))
1194                 return -EFAULT;
1195
1196         buf[len] = '\0';
1197         if (kstrtoul(buf, 0, &val))
1198                 return -EINVAL;
1199
1200         if (val < 0 || val > 15)
1201                 return -EINVAL;
1202
1203         sc->spec_config.fft_period = val;
1204         return count;
1205 }
1206
1207 static const struct file_operations fops_spectral_fft_period = {
1208         .read = read_file_spectral_fft_period,
1209         .write = write_file_spectral_fft_period,
1210         .open = simple_open,
1211         .owner = THIS_MODULE,
1212         .llseek = default_llseek,
1213 };
1214
1215 static struct dentry *create_buf_file_handler(const char *filename,
1216                                               struct dentry *parent,
1217                                               umode_t mode,
1218                                               struct rchan_buf *buf,
1219                                               int *is_global)
1220 {
1221         struct dentry *buf_file;
1222
1223         buf_file = debugfs_create_file(filename, mode, parent, buf,
1224                                        &relay_file_operations);
1225         *is_global = 1;
1226         return buf_file;
1227 }
1228
1229 static int remove_buf_file_handler(struct dentry *dentry)
1230 {
1231         debugfs_remove(dentry);
1232
1233         return 0;
1234 }
1235
1236 void ath_debug_send_fft_sample(struct ath_softc *sc,
1237                                struct fft_sample_tlv *fft_sample_tlv)
1238 {
1239         int length;
1240         if (!sc->rfs_chan_spec_scan)
1241                 return;
1242
1243         length = __be16_to_cpu(fft_sample_tlv->length) +
1244                  sizeof(*fft_sample_tlv);
1245         relay_write(sc->rfs_chan_spec_scan, fft_sample_tlv, length);
1246 }
1247
1248 static struct rchan_callbacks rfs_spec_scan_cb = {
1249         .create_buf_file = create_buf_file_handler,
1250         .remove_buf_file = remove_buf_file_handler,
1251 };
1252
1253
1254 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
1255                                 size_t count, loff_t *ppos)
1256 {
1257         struct ath_softc *sc = file->private_data;
1258         char buf[32];
1259         unsigned int len;
1260
1261         len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
1262         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1263 }
1264
1265 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
1266                              size_t count, loff_t *ppos)
1267 {
1268         struct ath_softc *sc = file->private_data;
1269         unsigned long regidx;
1270         char buf[32];
1271         ssize_t len;
1272
1273         len = min(count, sizeof(buf) - 1);
1274         if (copy_from_user(buf, user_buf, len))
1275                 return -EFAULT;
1276
1277         buf[len] = '\0';
1278         if (strict_strtoul(buf, 0, &regidx))
1279                 return -EINVAL;
1280
1281         sc->debug.regidx = regidx;
1282         return count;
1283 }
1284
1285 static const struct file_operations fops_regidx = {
1286         .read = read_file_regidx,
1287         .write = write_file_regidx,
1288         .open = simple_open,
1289         .owner = THIS_MODULE,
1290         .llseek = default_llseek,
1291 };
1292
1293 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
1294                              size_t count, loff_t *ppos)
1295 {
1296         struct ath_softc *sc = file->private_data;
1297         struct ath_hw *ah = sc->sc_ah;
1298         char buf[32];
1299         unsigned int len;
1300         u32 regval;
1301
1302         ath9k_ps_wakeup(sc);
1303         regval = REG_READ_D(ah, sc->debug.regidx);
1304         ath9k_ps_restore(sc);
1305         len = sprintf(buf, "0x%08x\n", regval);
1306         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1307 }
1308
1309 static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
1310                              size_t count, loff_t *ppos)
1311 {
1312         struct ath_softc *sc = file->private_data;
1313         struct ath_hw *ah = sc->sc_ah;
1314         unsigned long regval;
1315         char buf[32];
1316         ssize_t len;
1317
1318         len = min(count, sizeof(buf) - 1);
1319         if (copy_from_user(buf, user_buf, len))
1320                 return -EFAULT;
1321
1322         buf[len] = '\0';
1323         if (strict_strtoul(buf, 0, &regval))
1324                 return -EINVAL;
1325
1326         ath9k_ps_wakeup(sc);
1327         REG_WRITE_D(ah, sc->debug.regidx, regval);
1328         ath9k_ps_restore(sc);
1329         return count;
1330 }
1331
1332 static const struct file_operations fops_regval = {
1333         .read = read_file_regval,
1334         .write = write_file_regval,
1335         .open = simple_open,
1336         .owner = THIS_MODULE,
1337         .llseek = default_llseek,
1338 };
1339
1340 #define REGDUMP_LINE_SIZE       20
1341
1342 static int open_file_regdump(struct inode *inode, struct file *file)
1343 {
1344         struct ath_softc *sc = inode->i_private;
1345         unsigned int len = 0;
1346         u8 *buf;
1347         int i;
1348         unsigned long num_regs, regdump_len, max_reg_offset;
1349
1350         max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x16bd4 : 0xb500;
1351         num_regs = max_reg_offset / 4 + 1;
1352         regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
1353         buf = vmalloc(regdump_len);
1354         if (!buf)
1355                 return -ENOMEM;
1356
1357         ath9k_ps_wakeup(sc);
1358         for (i = 0; i < num_regs; i++)
1359                 len += scnprintf(buf + len, regdump_len - len,
1360                         "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
1361         ath9k_ps_restore(sc);
1362
1363         file->private_data = buf;
1364
1365         return 0;
1366 }
1367
1368 static const struct file_operations fops_regdump = {
1369         .open = open_file_regdump,
1370         .read = ath9k_debugfs_read_buf,
1371         .release = ath9k_debugfs_release_buf,
1372         .owner = THIS_MODULE,
1373         .llseek = default_llseek,/* read accesses f_pos */
1374 };
1375
1376 static ssize_t read_file_dump_nfcal(struct file *file, char __user *user_buf,
1377                                     size_t count, loff_t *ppos)
1378 {
1379         struct ath_softc *sc = file->private_data;
1380         struct ath_hw *ah = sc->sc_ah;
1381         struct ath9k_nfcal_hist *h = sc->caldata.nfCalHist;
1382         struct ath_common *common = ath9k_hw_common(ah);
1383         struct ieee80211_conf *conf = &common->hw->conf;
1384         u32 len = 0, size = 1500;
1385         u32 i, j;
1386         ssize_t retval = 0;
1387         char *buf;
1388         u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
1389         u8 nread;
1390
1391         buf = kzalloc(size, GFP_KERNEL);
1392         if (!buf)
1393                 return -ENOMEM;
1394
1395         len += snprintf(buf + len, size - len,
1396                         "Channel Noise Floor : %d\n", ah->noise);
1397         len += snprintf(buf + len, size - len,
1398                         "Chain | privNF | # Readings | NF Readings\n");
1399         for (i = 0; i < NUM_NF_READINGS; i++) {
1400                 if (!(chainmask & (1 << i)) ||
1401                     ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
1402                         continue;
1403
1404                 nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount;
1405                 len += snprintf(buf + len, size - len, " %d\t %d\t %d\t\t",
1406                                 i, h[i].privNF, nread);
1407                 for (j = 0; j < nread; j++)
1408                         len += snprintf(buf + len, size - len,
1409                                         " %d", h[i].nfCalBuffer[j]);
1410                 len += snprintf(buf + len, size - len, "\n");
1411         }
1412
1413         if (len > size)
1414                 len = size;
1415
1416         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1417         kfree(buf);
1418
1419         return retval;
1420 }
1421
1422 static const struct file_operations fops_dump_nfcal = {
1423         .read = read_file_dump_nfcal,
1424         .open = simple_open,
1425         .owner = THIS_MODULE,
1426         .llseek = default_llseek,
1427 };
1428
1429 static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
1430                                      size_t count, loff_t *ppos)
1431 {
1432         struct ath_softc *sc = file->private_data;
1433         struct ath_hw *ah = sc->sc_ah;
1434         u32 len = 0, size = 1500;
1435         ssize_t retval = 0;
1436         char *buf;
1437
1438         buf = kzalloc(size, GFP_KERNEL);
1439         if (!buf)
1440                 return -ENOMEM;
1441
1442         len = ah->eep_ops->dump_eeprom(ah, true, buf, len, size);
1443
1444         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1445         kfree(buf);
1446
1447         return retval;
1448 }
1449
1450 static const struct file_operations fops_base_eeprom = {
1451         .read = read_file_base_eeprom,
1452         .open = simple_open,
1453         .owner = THIS_MODULE,
1454         .llseek = default_llseek,
1455 };
1456
1457 static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf,
1458                                       size_t count, loff_t *ppos)
1459 {
1460         struct ath_softc *sc = file->private_data;
1461         struct ath_hw *ah = sc->sc_ah;
1462         u32 len = 0, size = 6000;
1463         char *buf;
1464         size_t retval;
1465
1466         buf = kzalloc(size, GFP_KERNEL);
1467         if (buf == NULL)
1468                 return -ENOMEM;
1469
1470         len = ah->eep_ops->dump_eeprom(ah, false, buf, len, size);
1471
1472         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1473         kfree(buf);
1474
1475         return retval;
1476 }
1477
1478 static const struct file_operations fops_modal_eeprom = {
1479         .read = read_file_modal_eeprom,
1480         .open = simple_open,
1481         .owner = THIS_MODULE,
1482         .llseek = default_llseek,
1483 };
1484
1485 #ifdef CONFIG_ATH9K_MAC_DEBUG
1486
1487 void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
1488 {
1489 #define ATH_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].c)
1490         struct ath_hw *ah = sc->sc_ah;
1491         struct ath_common *common = ath9k_hw_common(ah);
1492         unsigned long flags;
1493         int i;
1494
1495         ath9k_ps_wakeup(sc);
1496
1497         spin_lock_bh(&sc->debug.samp_lock);
1498
1499         spin_lock_irqsave(&common->cc_lock, flags);
1500         ath_hw_cycle_counters_update(common);
1501
1502         ATH_SAMP_DBG(cc.cycles) = common->cc_ani.cycles;
1503         ATH_SAMP_DBG(cc.rx_busy) = common->cc_ani.rx_busy;
1504         ATH_SAMP_DBG(cc.rx_frame) = common->cc_ani.rx_frame;
1505         ATH_SAMP_DBG(cc.tx_frame) = common->cc_ani.tx_frame;
1506         spin_unlock_irqrestore(&common->cc_lock, flags);
1507
1508         ATH_SAMP_DBG(noise) = ah->noise;
1509
1510         REG_WRITE_D(ah, AR_MACMISC,
1511                   ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
1512                    (AR_MACMISC_MISC_OBS_BUS_1 <<
1513                     AR_MACMISC_MISC_OBS_BUS_MSB_S)));
1514
1515         for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
1516                 ATH_SAMP_DBG(dma_dbg_reg_vals[i]) = REG_READ_D(ah,
1517                                 AR_DMADBG_0 + (i * sizeof(u32)));
1518
1519         ATH_SAMP_DBG(pcu_obs) = REG_READ_D(ah, AR_OBS_BUS_1);
1520         ATH_SAMP_DBG(pcu_cr) = REG_READ_D(ah, AR_CR);
1521
1522         memcpy(ATH_SAMP_DBG(nfCalHist), sc->caldata.nfCalHist,
1523                         sizeof(ATH_SAMP_DBG(nfCalHist)));
1524
1525         sc->debug.sampidx = (sc->debug.sampidx + 1) % ATH_DBG_MAX_SAMPLES;
1526         spin_unlock_bh(&sc->debug.samp_lock);
1527         ath9k_ps_restore(sc);
1528
1529 #undef ATH_SAMP_DBG
1530 }
1531
1532 static int open_file_bb_mac_samps(struct inode *inode, struct file *file)
1533 {
1534 #define ATH_SAMP_DBG(c) bb_mac_samp[sampidx].c
1535         struct ath_softc *sc = inode->i_private;
1536         struct ath_hw *ah = sc->sc_ah;
1537         struct ath_common *common = ath9k_hw_common(ah);
1538         struct ieee80211_conf *conf = &common->hw->conf;
1539         struct ath_dbg_bb_mac_samp *bb_mac_samp;
1540         struct ath9k_nfcal_hist *h;
1541         int i, j, qcuOffset = 0, dcuOffset = 0;
1542         u32 *qcuBase, *dcuBase, size = 30000, len = 0;
1543         u32 sampidx = 0;
1544         u8 *buf;
1545         u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
1546         u8 nread;
1547
1548         if (test_bit(SC_OP_INVALID, &sc->sc_flags))
1549                 return -EAGAIN;
1550
1551         buf = vmalloc(size);
1552         if (!buf)
1553                 return -ENOMEM;
1554         bb_mac_samp = vmalloc(sizeof(*bb_mac_samp) * ATH_DBG_MAX_SAMPLES);
1555         if (!bb_mac_samp) {
1556                 vfree(buf);
1557                 return -ENOMEM;
1558         }
1559         /* Account the current state too */
1560         ath9k_debug_samp_bb_mac(sc);
1561
1562         spin_lock_bh(&sc->debug.samp_lock);
1563         memcpy(bb_mac_samp, sc->debug.bb_mac_samp,
1564                         sizeof(*bb_mac_samp) * ATH_DBG_MAX_SAMPLES);
1565         len += snprintf(buf + len, size - len,
1566                         "Current Sample Index: %d\n", sc->debug.sampidx);
1567         spin_unlock_bh(&sc->debug.samp_lock);
1568
1569         len += snprintf(buf + len, size - len,
1570                         "Raw DMA Debug Dump:\n");
1571         len += snprintf(buf + len, size - len, "Sample |\t");
1572         for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
1573                 len += snprintf(buf + len, size - len, " DMA Reg%d |\t", i);
1574         len += snprintf(buf + len, size - len, "\n");
1575
1576         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1577                 len += snprintf(buf + len, size - len, "%d\t", sampidx);
1578
1579                 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
1580                         len += snprintf(buf + len, size - len, " %08x\t",
1581                                         ATH_SAMP_DBG(dma_dbg_reg_vals[i]));
1582                 len += snprintf(buf + len, size - len, "\n");
1583         }
1584         len += snprintf(buf + len, size - len, "\n");
1585
1586         len += snprintf(buf + len, size - len,
1587                         "Sample Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
1588         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1589                 qcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[0]);
1590                 dcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[4]);
1591
1592                 for (i = 0; i < ATH9K_NUM_QUEUES; i++,
1593                                 qcuOffset += 4, dcuOffset += 5) {
1594                         if (i == 8) {
1595                                 qcuOffset = 0;
1596                                 qcuBase++;
1597                         }
1598
1599                         if (i == 6) {
1600                                 dcuOffset = 0;
1601                                 dcuBase++;
1602                         }
1603                         if (!sc->debug.stats.txstats[i].queued)
1604                                 continue;
1605
1606                         len += snprintf(buf + len, size - len,
1607                                 "%4d %7d    %2x      %1x     %2x         %2x\n",
1608                                 sampidx, i,
1609                                 (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
1610                                 (*qcuBase & (0x8 << qcuOffset)) >>
1611                                 (qcuOffset + 3),
1612                                 ATH_SAMP_DBG(dma_dbg_reg_vals[2]) &
1613                                 (0x7 << (i * 3)) >> (i * 3),
1614                                 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
1615                 }
1616                 len += snprintf(buf + len, size - len, "\n");
1617         }
1618         len += snprintf(buf + len, size - len,
1619                         "samp qcu_sh qcu_fh qcu_comp dcu_comp dcu_arb dcu_fp "
1620                         "ch_idle_dur ch_idle_dur_val txfifo_val0 txfifo_val1 "
1621                         "txfifo_dcu0 txfifo_dcu1 pcu_obs AR_CR\n");
1622
1623         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1624                 qcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[0]);
1625                 dcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[4]);
1626
1627                 len += snprintf(buf + len, size - len, "%4d %5x %5x ", sampidx,
1628                         (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x003c0000) >> 18,
1629                         (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x03c00000) >> 22);
1630                 len += snprintf(buf + len, size - len, "%7x %8x ",
1631                         (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x1c000000) >> 26,
1632                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x3));
1633                 len += snprintf(buf + len, size - len, "%7x %7x ",
1634                         (ATH_SAMP_DBG(dma_dbg_reg_vals[5]) & 0x06000000) >> 25,
1635                         (ATH_SAMP_DBG(dma_dbg_reg_vals[5]) & 0x38000000) >> 27);
1636                 len += snprintf(buf + len, size - len, "%7d %12d ",
1637                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x000003fc) >> 2,
1638                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00000400) >> 10);
1639                 len += snprintf(buf + len, size - len, "%12d %12d ",
1640                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00000800) >> 11,
1641                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00001000) >> 12);
1642                 len += snprintf(buf + len, size - len, "%12d %12d ",
1643                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x0001e000) >> 13,
1644                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x001e0000) >> 17);
1645                 len += snprintf(buf + len, size - len, "0x%07x 0x%07x\n",
1646                                 ATH_SAMP_DBG(pcu_obs), ATH_SAMP_DBG(pcu_cr));
1647         }
1648
1649         len += snprintf(buf + len, size - len,
1650                         "Sample ChNoise Chain privNF #Reading Readings\n");
1651         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1652                 h = ATH_SAMP_DBG(nfCalHist);
1653                 if (!ATH_SAMP_DBG(noise))
1654                         continue;
1655
1656                 for (i = 0; i < NUM_NF_READINGS; i++) {
1657                         if (!(chainmask & (1 << i)) ||
1658                             ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
1659                                 continue;
1660
1661                         nread = AR_PHY_CCA_FILTERWINDOW_LENGTH -
1662                                 h[i].invalidNFcount;
1663                         len += snprintf(buf + len, size - len,
1664                                         "%4d %5d %4d\t   %d\t %d\t",
1665                                         sampidx, ATH_SAMP_DBG(noise),
1666                                         i, h[i].privNF, nread);
1667                         for (j = 0; j < nread; j++)
1668                                 len += snprintf(buf + len, size - len,
1669                                         " %d", h[i].nfCalBuffer[j]);
1670                         len += snprintf(buf + len, size - len, "\n");
1671                 }
1672         }
1673         len += snprintf(buf + len, size - len, "\nCycle counters:\n"
1674                         "Sample Total    Rxbusy   Rxframes Txframes\n");
1675         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1676                 if (!ATH_SAMP_DBG(cc.cycles))
1677                         continue;
1678                 len += snprintf(buf + len, size - len,
1679                                 "%4d %08x %08x %08x %08x\n",
1680                                 sampidx, ATH_SAMP_DBG(cc.cycles),
1681                                 ATH_SAMP_DBG(cc.rx_busy),
1682                                 ATH_SAMP_DBG(cc.rx_frame),
1683                                 ATH_SAMP_DBG(cc.tx_frame));
1684         }
1685
1686         len += snprintf(buf + len, size - len, "Tx status Dump :\n");
1687         len += snprintf(buf + len, size - len,
1688                         "Sample rssi:- ctl0 ctl1 ctl2 ext0 ext1 ext2 comb "
1689                         "isok rts_fail data_fail rate tid qid "
1690                                         "ba_low  ba_high tx_before(ms)\n");
1691         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1692                 for (i = 0; i < ATH_DBG_MAX_SAMPLES; i++) {
1693                         if (!ATH_SAMP_DBG(ts[i].jiffies))
1694                                 continue;
1695                         len += snprintf(buf + len, size - len, "%-14d"
1696                                 "%-4d %-4d %-4d %-4d %-4d %-4d %-4d %-4d %-8d "
1697                                 "%-9d %-4d %-3d %-3d %08x %08x %-11d\n",
1698                                 sampidx,
1699                                 ATH_SAMP_DBG(ts[i].rssi_ctl0),
1700                                 ATH_SAMP_DBG(ts[i].rssi_ctl1),
1701                                 ATH_SAMP_DBG(ts[i].rssi_ctl2),
1702                                 ATH_SAMP_DBG(ts[i].rssi_ext0),
1703                                 ATH_SAMP_DBG(ts[i].rssi_ext1),
1704                                 ATH_SAMP_DBG(ts[i].rssi_ext2),
1705                                 ATH_SAMP_DBG(ts[i].rssi),
1706                                 ATH_SAMP_DBG(ts[i].isok),
1707                                 ATH_SAMP_DBG(ts[i].rts_fail_cnt),
1708                                 ATH_SAMP_DBG(ts[i].data_fail_cnt),
1709                                 ATH_SAMP_DBG(ts[i].rateindex),
1710                                 ATH_SAMP_DBG(ts[i].tid),
1711                                 ATH_SAMP_DBG(ts[i].qid),
1712                                 ATH_SAMP_DBG(ts[i].ba_low),
1713                                 ATH_SAMP_DBG(ts[i].ba_high),
1714                                 jiffies_to_msecs(jiffies -
1715                                         ATH_SAMP_DBG(ts[i].jiffies)));
1716                 }
1717         }
1718
1719         len += snprintf(buf + len, size - len, "Rx status Dump :\n");
1720         len += snprintf(buf + len, size - len, "Sample rssi:- ctl0 ctl1 ctl2 "
1721                         "ext0 ext1 ext2 comb beacon ant rate rx_before(ms)\n");
1722         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1723                 for (i = 0; i < ATH_DBG_MAX_SAMPLES; i++) {
1724                         if (!ATH_SAMP_DBG(rs[i].jiffies))
1725                                 continue;
1726                         len += snprintf(buf + len, size - len, "%-14d"
1727                                 "%-4d %-4d %-4d %-4d %-4d %-4d %-4d %-9s %-2d %02x %-13d\n",
1728                                 sampidx,
1729                                 ATH_SAMP_DBG(rs[i].rssi_ctl0),
1730                                 ATH_SAMP_DBG(rs[i].rssi_ctl1),
1731                                 ATH_SAMP_DBG(rs[i].rssi_ctl2),
1732                                 ATH_SAMP_DBG(rs[i].rssi_ext0),
1733                                 ATH_SAMP_DBG(rs[i].rssi_ext1),
1734                                 ATH_SAMP_DBG(rs[i].rssi_ext2),
1735                                 ATH_SAMP_DBG(rs[i].rssi),
1736                                 ATH_SAMP_DBG(rs[i].is_mybeacon) ?
1737                                 "True" : "False",
1738                                 ATH_SAMP_DBG(rs[i].antenna),
1739                                 ATH_SAMP_DBG(rs[i].rate),
1740                                 jiffies_to_msecs(jiffies -
1741                                         ATH_SAMP_DBG(rs[i].jiffies)));
1742                 }
1743         }
1744
1745         vfree(bb_mac_samp);
1746         file->private_data = buf;
1747
1748         return 0;
1749 #undef ATH_SAMP_DBG
1750 }
1751
1752 static const struct file_operations fops_samps = {
1753         .open = open_file_bb_mac_samps,
1754         .read = ath9k_debugfs_read_buf,
1755         .release = ath9k_debugfs_release_buf,
1756         .owner = THIS_MODULE,
1757         .llseek = default_llseek,
1758 };
1759
1760 #endif
1761
1762 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1763 static ssize_t read_file_btcoex(struct file *file, char __user *user_buf,
1764                                 size_t count, loff_t *ppos)
1765 {
1766         struct ath_softc *sc = file->private_data;
1767         u32 len = 0, size = 1500;
1768         char *buf;
1769         size_t retval;
1770
1771         buf = kzalloc(size, GFP_KERNEL);
1772         if (buf == NULL)
1773                 return -ENOMEM;
1774
1775         if (!sc->sc_ah->common.btcoex_enabled) {
1776                 len = snprintf(buf, size, "%s\n",
1777                                "BTCOEX is disabled");
1778                 goto exit;
1779         }
1780
1781         len = ath9k_dump_btcoex(sc, buf, size);
1782 exit:
1783         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1784         kfree(buf);
1785
1786         return retval;
1787 }
1788
1789 static const struct file_operations fops_btcoex = {
1790         .read = read_file_btcoex,
1791         .open = simple_open,
1792         .owner = THIS_MODULE,
1793         .llseek = default_llseek,
1794 };
1795 #endif
1796
1797 static ssize_t read_file_node_stat(struct file *file, char __user *user_buf,
1798                                    size_t count, loff_t *ppos)
1799 {
1800         struct ath_node *an = file->private_data;
1801         struct ath_softc *sc = an->sc;
1802         struct ath_atx_tid *tid;
1803         struct ath_atx_ac *ac;
1804         struct ath_txq *txq;
1805         u32 len = 0, size = 4096;
1806         char *buf;
1807         size_t retval;
1808         int tidno, acno;
1809
1810         buf = kzalloc(size, GFP_KERNEL);
1811         if (buf == NULL)
1812                 return -ENOMEM;
1813
1814         if (!an->sta->ht_cap.ht_supported) {
1815                 len = snprintf(buf, size, "%s\n",
1816                                "HT not supported");
1817                 goto exit;
1818         }
1819
1820         len = snprintf(buf, size, "Max-AMPDU: %d\n",
1821                        an->maxampdu);
1822         len += snprintf(buf + len, size - len, "MPDU Density: %d\n\n",
1823                         an->mpdudensity);
1824
1825         len += snprintf(buf + len, size - len,
1826                         "%2s%7s\n", "AC", "SCHED");
1827
1828         for (acno = 0, ac = &an->ac[acno];
1829              acno < IEEE80211_NUM_ACS; acno++, ac++) {
1830                 txq = ac->txq;
1831                 ath_txq_lock(sc, txq);
1832                 len += snprintf(buf + len, size - len,
1833                                 "%2d%7d\n",
1834                                 acno, ac->sched);
1835                 ath_txq_unlock(sc, txq);
1836         }
1837
1838         len += snprintf(buf + len, size - len,
1839                         "\n%3s%11s%10s%10s%10s%10s%9s%6s%8s\n",
1840                         "TID", "SEQ_START", "SEQ_NEXT", "BAW_SIZE",
1841                         "BAW_HEAD", "BAW_TAIL", "BAR_IDX", "SCHED", "PAUSED");
1842
1843         for (tidno = 0, tid = &an->tid[tidno];
1844              tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
1845                 txq = tid->ac->txq;
1846                 ath_txq_lock(sc, txq);
1847                 len += snprintf(buf + len, size - len,
1848                                 "%3d%11d%10d%10d%10d%10d%9d%6d%8d\n",
1849                                 tid->tidno, tid->seq_start, tid->seq_next,
1850                                 tid->baw_size, tid->baw_head, tid->baw_tail,
1851                                 tid->bar_index, tid->sched, tid->paused);
1852                 ath_txq_unlock(sc, txq);
1853         }
1854 exit:
1855         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1856         kfree(buf);
1857
1858         return retval;
1859 }
1860
1861 static const struct file_operations fops_node_stat = {
1862         .read = read_file_node_stat,
1863         .open = simple_open,
1864         .owner = THIS_MODULE,
1865         .llseek = default_llseek,
1866 };
1867
1868 void ath9k_sta_add_debugfs(struct ieee80211_hw *hw,
1869                            struct ieee80211_vif *vif,
1870                            struct ieee80211_sta *sta,
1871                            struct dentry *dir)
1872 {
1873         struct ath_node *an = (struct ath_node *)sta->drv_priv;
1874         an->node_stat = debugfs_create_file("node_stat", S_IRUGO,
1875                                             dir, an, &fops_node_stat);
1876 }
1877
1878 void ath9k_sta_remove_debugfs(struct ieee80211_hw *hw,
1879                               struct ieee80211_vif *vif,
1880                               struct ieee80211_sta *sta,
1881                               struct dentry *dir)
1882 {
1883         struct ath_node *an = (struct ath_node *)sta->drv_priv;
1884         debugfs_remove(an->node_stat);
1885 }
1886
1887 /* Ethtool support for get-stats */
1888
1889 #define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
1890 static const char ath9k_gstrings_stats[][ETH_GSTRING_LEN] = {
1891         "tx_pkts_nic",
1892         "tx_bytes_nic",
1893         "rx_pkts_nic",
1894         "rx_bytes_nic",
1895         AMKSTR(d_tx_pkts),
1896         AMKSTR(d_tx_bytes),
1897         AMKSTR(d_tx_mpdus_queued),
1898         AMKSTR(d_tx_mpdus_completed),
1899         AMKSTR(d_tx_mpdu_xretries),
1900         AMKSTR(d_tx_aggregates),
1901         AMKSTR(d_tx_ampdus_queued_hw),
1902         AMKSTR(d_tx_ampdus_queued_sw),
1903         AMKSTR(d_tx_ampdus_completed),
1904         AMKSTR(d_tx_ampdu_retries),
1905         AMKSTR(d_tx_ampdu_xretries),
1906         AMKSTR(d_tx_fifo_underrun),
1907         AMKSTR(d_tx_op_exceeded),
1908         AMKSTR(d_tx_timer_expiry),
1909         AMKSTR(d_tx_desc_cfg_err),
1910         AMKSTR(d_tx_data_underrun),
1911         AMKSTR(d_tx_delim_underrun),
1912         "d_rx_decrypt_crc_err",
1913         "d_rx_phy_err",
1914         "d_rx_mic_err",
1915         "d_rx_pre_delim_crc_err",
1916         "d_rx_post_delim_crc_err",
1917         "d_rx_decrypt_busy_err",
1918
1919         "d_rx_phyerr_radar",
1920         "d_rx_phyerr_ofdm_timing",
1921         "d_rx_phyerr_cck_timing",
1922
1923 };
1924 #define ATH9K_SSTATS_LEN ARRAY_SIZE(ath9k_gstrings_stats)
1925
1926 void ath9k_get_et_strings(struct ieee80211_hw *hw,
1927                           struct ieee80211_vif *vif,
1928                           u32 sset, u8 *data)
1929 {
1930         if (sset == ETH_SS_STATS)
1931                 memcpy(data, *ath9k_gstrings_stats,
1932                        sizeof(ath9k_gstrings_stats));
1933 }
1934
1935 int ath9k_get_et_sset_count(struct ieee80211_hw *hw,
1936                             struct ieee80211_vif *vif, int sset)
1937 {
1938         if (sset == ETH_SS_STATS)
1939                 return ATH9K_SSTATS_LEN;
1940         return 0;
1941 }
1942
1943 #define AWDATA(elem)                                                    \
1944         do {                                                            \
1945                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].elem; \
1946                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].elem; \
1947                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].elem; \
1948                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].elem; \
1949         } while (0)
1950
1951 #define AWDATA_RX(elem)                                         \
1952         do {                                                    \
1953                 data[i++] = sc->debug.stats.rxstats.elem;       \
1954         } while (0)
1955
1956 void ath9k_get_et_stats(struct ieee80211_hw *hw,
1957                         struct ieee80211_vif *vif,
1958                         struct ethtool_stats *stats, u64 *data)
1959 {
1960         struct ath_softc *sc = hw->priv;
1961         int i = 0;
1962
1963         data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_pkts_all +
1964                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_pkts_all +
1965                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_pkts_all +
1966                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_pkts_all);
1967         data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_bytes_all +
1968                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_bytes_all +
1969                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_bytes_all +
1970                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_bytes_all);
1971         AWDATA_RX(rx_pkts_all);
1972         AWDATA_RX(rx_bytes_all);
1973
1974         AWDATA(tx_pkts_all);
1975         AWDATA(tx_bytes_all);
1976         AWDATA(queued);
1977         AWDATA(completed);
1978         AWDATA(xretries);
1979         AWDATA(a_aggr);
1980         AWDATA(a_queued_hw);
1981         AWDATA(a_queued_sw);
1982         AWDATA(a_completed);
1983         AWDATA(a_retries);
1984         AWDATA(a_xretries);
1985         AWDATA(fifo_underrun);
1986         AWDATA(xtxop);
1987         AWDATA(timer_exp);
1988         AWDATA(desc_cfg_err);
1989         AWDATA(data_underrun);
1990         AWDATA(delim_underrun);
1991
1992         AWDATA_RX(decrypt_crc_err);
1993         AWDATA_RX(phy_err);
1994         AWDATA_RX(mic_err);
1995         AWDATA_RX(pre_delim_crc_err);
1996         AWDATA_RX(post_delim_crc_err);
1997         AWDATA_RX(decrypt_busy_err);
1998
1999         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_RADAR]);
2000         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_OFDM_TIMING]);
2001         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_CCK_TIMING]);
2002
2003         WARN_ON(i != ATH9K_SSTATS_LEN);
2004 }
2005
2006 int ath9k_init_debug(struct ath_hw *ah)
2007 {
2008         struct ath_common *common = ath9k_hw_common(ah);
2009         struct ath_softc *sc = (struct ath_softc *) common->priv;
2010
2011         sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
2012                                                    sc->hw->wiphy->debugfsdir);
2013         if (!sc->debug.debugfs_phy)
2014                 return -ENOMEM;
2015
2016 #ifdef CONFIG_ATH_DEBUG
2017         debugfs_create_file("debug", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2018                             sc, &fops_debug);
2019 #endif
2020
2021         ath9k_dfs_init_debug(sc);
2022
2023         debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
2024                             &fops_dma);
2025         debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc,
2026                             &fops_interrupt);
2027         debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc,
2028                             &fops_xmit);
2029         debugfs_create_file("queues", S_IRUSR, sc->debug.debugfs_phy, sc,
2030                             &fops_queues);
2031         debugfs_create_u32("qlen_bk", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2032                            &sc->tx.txq_max_pending[IEEE80211_AC_BK]);
2033         debugfs_create_u32("qlen_be", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2034                            &sc->tx.txq_max_pending[IEEE80211_AC_BE]);
2035         debugfs_create_u32("qlen_vi", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2036                            &sc->tx.txq_max_pending[IEEE80211_AC_VI]);
2037         debugfs_create_u32("qlen_vo", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2038                            &sc->tx.txq_max_pending[IEEE80211_AC_VO]);
2039         debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc,
2040                             &fops_misc);
2041         debugfs_create_file("reset", S_IRUSR, sc->debug.debugfs_phy, sc,
2042                             &fops_reset);
2043         debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc,
2044                             &fops_recv);
2045         debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
2046                             sc->debug.debugfs_phy, sc, &fops_rx_chainmask);
2047         debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
2048                             sc->debug.debugfs_phy, sc, &fops_tx_chainmask);
2049         debugfs_create_file("disable_ani", S_IRUSR | S_IWUSR,
2050                             sc->debug.debugfs_phy, sc, &fops_disable_ani);
2051         debugfs_create_bool("paprd", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2052                             &sc->sc_ah->config.enable_paprd);
2053         debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2054                             sc, &fops_regidx);
2055         debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
2056                             sc, &fops_regval);
2057         debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
2058                             sc->debug.debugfs_phy,
2059                             &ah->config.cwm_ignore_extcca);
2060         debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc,
2061                             &fops_regdump);
2062         debugfs_create_file("dump_nfcal", S_IRUSR, sc->debug.debugfs_phy, sc,
2063                             &fops_dump_nfcal);
2064         debugfs_create_file("base_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
2065                             &fops_base_eeprom);
2066         debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
2067                             &fops_modal_eeprom);
2068         sc->rfs_chan_spec_scan = relay_open("spectral_scan",
2069                                             sc->debug.debugfs_phy,
2070                                             262144, 4, &rfs_spec_scan_cb,
2071                                             NULL);
2072         debugfs_create_file("spectral_scan_ctl", S_IRUSR | S_IWUSR,
2073                             sc->debug.debugfs_phy, sc,
2074                             &fops_spec_scan_ctl);
2075         debugfs_create_file("spectral_short_repeat", S_IRUSR | S_IWUSR,
2076                             sc->debug.debugfs_phy, sc,
2077                             &fops_spectral_short_repeat);
2078         debugfs_create_file("spectral_count", S_IRUSR | S_IWUSR,
2079                             sc->debug.debugfs_phy, sc, &fops_spectral_count);
2080         debugfs_create_file("spectral_period", S_IRUSR | S_IWUSR,
2081                             sc->debug.debugfs_phy, sc, &fops_spectral_period);
2082         debugfs_create_file("spectral_fft_period", S_IRUSR | S_IWUSR,
2083                             sc->debug.debugfs_phy, sc,
2084                             &fops_spectral_fft_period);
2085
2086 #ifdef CONFIG_ATH9K_MAC_DEBUG
2087         debugfs_create_file("samples", S_IRUSR, sc->debug.debugfs_phy, sc,
2088                             &fops_samps);
2089 #endif
2090         debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
2091                            sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
2092         debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
2093                            sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
2094         debugfs_create_file("diversity", S_IRUSR | S_IWUSR,
2095                             sc->debug.debugfs_phy, sc, &fops_ant_diversity);
2096 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
2097         debugfs_create_file("btcoex", S_IRUSR, sc->debug.debugfs_phy, sc,
2098                             &fops_btcoex);
2099 #endif
2100         return 0;
2101 }