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 <asm/unaligned.h>
  21
  22 #include "ath9k.h"
  23
  24 #define REG_WRITE_D(_ah, _reg, _val) \
  25         ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg))
  26 #define REG_READ_D(_ah, _reg) \
  27         ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
  28
  29
  30 static ssize_t ath9k_debugfs_read_buf(struct file *file, char __user *user_buf,
  31                                       size_t count, loff_t *ppos)
  32 {
  33         u8 *buf = file->private_data;
  34         return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
  35 }
  36
  37 static int ath9k_debugfs_release_buf(struct inode *inode, struct file *file)
  38 {
  39         vfree(file->private_data);
  40         return 0;
  41 }
  42
  43 #ifdef CONFIG_ATH_DEBUG
  44
  45 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
  46                              size_t count, loff_t *ppos)
  47 {
  48         struct ath_softc *sc = file->private_data;
  49         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
  50         char buf[32];
  51         unsigned int len;
  52
  53         len = sprintf(buf, "0x%08x\n", common->debug_mask);
  54         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
  55 }
  56
  57 static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
  58                              size_t count, loff_t *ppos)
  59 {
  60         struct ath_softc *sc = file->private_data;
  61         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
  62         unsigned long mask;
  63         char buf[32];
  64         ssize_t len;
  65
  66         len = min(count, sizeof(buf) - 1);
  67         if (copy_from_user(buf, user_buf, len))
  68                 return -EFAULT;
  69
  70         buf[len] = '\0';
  71         if (strict_strtoul(buf, 0, &mask))
  72                 return -EINVAL;
  73
  74         common->debug_mask = mask;
  75         return count;
  76 }
  77
  78 static const struct file_operations fops_debug = {
  79         .read = read_file_debug,
  80         .write = write_file_debug,
  81         .open = simple_open,
  82         .owner = THIS_MODULE,
  83         .llseek = default_llseek,
  84 };
  85
  86 #endif
  87
  88 #define DMA_BUF_LEN 1024
  89
  90 static ssize_t read_file_tx_chainmask(struct file *file, char __user *user_buf,
  91                              size_t count, loff_t *ppos)
  92 {
  93         struct ath_softc *sc = file->private_data;
  94         struct ath_hw *ah = sc->sc_ah;
  95         char buf[32];
  96         unsigned int len;
  97
  98         len = sprintf(buf, "0x%08x\n", ah->txchainmask);
  99         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 100 }
 101
 102 static ssize_t write_file_tx_chainmask(struct file *file, const char __user *user_buf,
 103                              size_t count, loff_t *ppos)
 104 {
 105         struct ath_softc *sc = file->private_data;
 106         struct ath_hw *ah = sc->sc_ah;
 107         unsigned long mask;
 108         char buf[32];
 109         ssize_t len;
 110
 111         len = min(count, sizeof(buf) - 1);
 112         if (copy_from_user(buf, user_buf, len))
 113                 return -EFAULT;
 114
 115         buf[len] = '\0';
 116         if (strict_strtoul(buf, 0, &mask))
 117                 return -EINVAL;
 118
 119         ah->txchainmask = mask;
 120         ah->caps.tx_chainmask = mask;
 121         return count;
 122 }
 123
 124 static const struct file_operations fops_tx_chainmask = {
 125         .read = read_file_tx_chainmask,
 126         .write = write_file_tx_chainmask,
 127         .open = simple_open,
 128         .owner = THIS_MODULE,
 129         .llseek = default_llseek,
 130 };
 131
 132
 133 static ssize_t read_file_rx_chainmask(struct file *file, char __user *user_buf,
 134                              size_t count, loff_t *ppos)
 135 {
 136         struct ath_softc *sc = file->private_data;
 137         struct ath_hw *ah = sc->sc_ah;
 138         char buf[32];
 139         unsigned int len;
 140
 141         len = sprintf(buf, "0x%08x\n", ah->rxchainmask);
 142         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 143 }
 144
 145 static ssize_t write_file_rx_chainmask(struct file *file, const char __user *user_buf,
 146                              size_t count, loff_t *ppos)
 147 {
 148         struct ath_softc *sc = file->private_data;
 149         struct ath_hw *ah = sc->sc_ah;
 150         unsigned long mask;
 151         char buf[32];
 152         ssize_t len;
 153
 154         len = min(count, sizeof(buf) - 1);
 155         if (copy_from_user(buf, user_buf, len))
 156                 return -EFAULT;
 157
 158         buf[len] = '\0';
 159         if (strict_strtoul(buf, 0, &mask))
 160                 return -EINVAL;
 161
 162         ah->rxchainmask = mask;
 163         ah->caps.rx_chainmask = mask;
 164         return count;
 165 }
 166
 167 static const struct file_operations fops_rx_chainmask = {
 168         .read = read_file_rx_chainmask,
 169         .write = write_file_rx_chainmask,
 170         .open = simple_open,
 171         .owner = THIS_MODULE,
 172         .llseek = default_llseek,
 173 };
 174
 175 static ssize_t read_file_disable_ani(struct file *file, char __user *user_buf,
 176                              size_t count, loff_t *ppos)
 177 {
 178         struct ath_softc *sc = file->private_data;
 179         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 180         char buf[32];
 181         unsigned int len;
 182
 183         len = sprintf(buf, "%d\n", common->disable_ani);
 184         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 185 }
 186
 187 static ssize_t write_file_disable_ani(struct file *file,
 188                                       const char __user *user_buf,
 189                                       size_t count, loff_t *ppos)
 190 {
 191         struct ath_softc *sc = file->private_data;
 192         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 193         unsigned long disable_ani;
 194         char buf[32];
 195         ssize_t len;
 196
 197         len = min(count, sizeof(buf) - 1);
 198         if (copy_from_user(buf, user_buf, len))
 199                 return -EFAULT;
 200
 201         buf[len] = '\0';
 202         if (strict_strtoul(buf, 0, &disable_ani))
 203                 return -EINVAL;
 204
 205         common->disable_ani = !!disable_ani;
 206
 207         if (disable_ani) {
 208                 clear_bit(SC_OP_ANI_RUN, &sc->sc_flags);
 209                 ath_stop_ani(sc);
 210         } else {
 211                 ath_check_ani(sc);
 212         }
 213
 214         return count;
 215 }
 216
 217 static const struct file_operations fops_disable_ani = {
 218         .read = read_file_disable_ani,
 219         .write = write_file_disable_ani,
 220         .open = simple_open,
 221         .owner = THIS_MODULE,
 222         .llseek = default_llseek,
 223 };
 224
 225 static ssize_t read_file_ant_diversity(struct file *file, char __user *user_buf,
 226                                        size_t count, loff_t *ppos)
 227 {
 228         struct ath_softc *sc = file->private_data;
 229         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 230         char buf[32];
 231         unsigned int len;
 232
 233         len = sprintf(buf, "%d\n", common->antenna_diversity);
 234         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 235 }
 236
 237 static ssize_t write_file_ant_diversity(struct file *file,
 238                                         const char __user *user_buf,
 239                                         size_t count, loff_t *ppos)
 240 {
 241         struct ath_softc *sc = file->private_data;
 242         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 243         unsigned long antenna_diversity;
 244         char buf[32];
 245         ssize_t len;
 246
 247         len = min(count, sizeof(buf) - 1);
 248         if (copy_from_user(buf, user_buf, len))
 249                 return -EFAULT;
 250
 251         if (!AR_SREV_9565(sc->sc_ah))
 252                 goto exit;
 253
 254         buf[len] = '\0';
 255         if (strict_strtoul(buf, 0, &antenna_diversity))
 256                 return -EINVAL;
 257
 258         common->antenna_diversity = !!antenna_diversity;
 259         ath9k_ps_wakeup(sc);
 260         ath_ant_comb_update(sc);
 261         ath_dbg(common, CONFIG, "Antenna diversity: %d\n",
 262                 common->antenna_diversity);
 263         ath9k_ps_restore(sc);
 264 exit:
 265         return count;
 266 }
 267
 268 static const struct file_operations fops_ant_diversity = {
 269         .read = read_file_ant_diversity,
 270         .write = write_file_ant_diversity,
 271         .open = simple_open,
 272         .owner = THIS_MODULE,
 273         .llseek = default_llseek,
 274 };
 275
 276 static ssize_t read_file_dma(struct file *file, char __user *user_buf,
 277                              size_t count, loff_t *ppos)
 278 {
 279         struct ath_softc *sc = file->private_data;
 280         struct ath_hw *ah = sc->sc_ah;
 281         char *buf;
 282         int retval;
 283         unsigned int len = 0;
 284         u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
 285         int i, qcuOffset = 0, dcuOffset = 0;
 286         u32 *qcuBase = &val[0], *dcuBase = &val[4];
 287
 288         buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
 289         if (!buf)
 290                 return -ENOMEM;
 291
 292         ath9k_ps_wakeup(sc);
 293
 294         REG_WRITE_D(ah, AR_MACMISC,
 295                   ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
 296                    (AR_MACMISC_MISC_OBS_BUS_1 <<
 297                     AR_MACMISC_MISC_OBS_BUS_MSB_S)));
 298
 299         len += snprintf(buf + len, DMA_BUF_LEN - len,
 300                         "Raw DMA Debug values:\n");
 301
 302         for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
 303                 if (i % 4 == 0)
 304                         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
 305
 306                 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
 307                 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
 308                                 i, val[i]);
 309         }
 310
 311         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
 312         len += snprintf(buf + len, DMA_BUF_LEN - len,
 313                         "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
 314
 315         for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
 316                 if (i == 8) {
 317                         qcuOffset = 0;
 318                         qcuBase++;
 319                 }
 320
 321                 if (i == 6) {
 322                         dcuOffset = 0;
 323                         dcuBase++;
 324                 }
 325
 326                 len += snprintf(buf + len, DMA_BUF_LEN - len,
 327                         "%2d          %2x      %1x     %2x           %2x\n",
 328                         i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
 329                         (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
 330                         val[2] & (0x7 << (i * 3)) >> (i * 3),
 331                         (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
 332         }
 333
 334         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
 335
 336         len += snprintf(buf + len, DMA_BUF_LEN - len,
 337                 "qcu_stitch state:   %2x    qcu_fetch state:        %2x\n",
 338                 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
 339         len += snprintf(buf + len, DMA_BUF_LEN - len,
 340                 "qcu_complete state: %2x    dcu_complete state:     %2x\n",
 341                 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
 342         len += snprintf(buf + len, DMA_BUF_LEN - len,
 343                 "dcu_arb state:      %2x    dcu_fp state:           %2x\n",
 344                 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
 345         len += snprintf(buf + len, DMA_BUF_LEN - len,
 346                 "chan_idle_dur:     %3d    chan_idle_dur_valid:     %1d\n",
 347                 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
 348         len += snprintf(buf + len, DMA_BUF_LEN - len,
 349                 "txfifo_valid_0:      %1d    txfifo_valid_1:          %1d\n",
 350                 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
 351         len += snprintf(buf + len, DMA_BUF_LEN - len,
 352                 "txfifo_dcu_num_0:   %2d    txfifo_dcu_num_1:       %2d\n",
 353                 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
 354
 355         len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
 356                         REG_READ_D(ah, AR_OBS_BUS_1));
 357         len += snprintf(buf + len, DMA_BUF_LEN - len,
 358                         "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
 359
 360         ath9k_ps_restore(sc);
 361
 362         if (len > DMA_BUF_LEN)
 363                 len = DMA_BUF_LEN;
 364
 365         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 366         kfree(buf);
 367         return retval;
 368 }
 369
 370 static const struct file_operations fops_dma = {
 371         .read = read_file_dma,
 372         .open = simple_open,
 373         .owner = THIS_MODULE,
 374         .llseek = default_llseek,
 375 };
 376
 377
 378 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
 379 {
 380         if (status)
 381                 sc->debug.stats.istats.total++;
 382         if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 383                 if (status & ATH9K_INT_RXLP)
 384                         sc->debug.stats.istats.rxlp++;
 385                 if (status & ATH9K_INT_RXHP)
 386                         sc->debug.stats.istats.rxhp++;
 387                 if (status & ATH9K_INT_BB_WATCHDOG)
 388                         sc->debug.stats.istats.bb_watchdog++;
 389         } else {
 390                 if (status & ATH9K_INT_RX)
 391                         sc->debug.stats.istats.rxok++;
 392         }
 393         if (status & ATH9K_INT_RXEOL)
 394                 sc->debug.stats.istats.rxeol++;
 395         if (status & ATH9K_INT_RXORN)
 396                 sc->debug.stats.istats.rxorn++;
 397         if (status & ATH9K_INT_TX)
 398                 sc->debug.stats.istats.txok++;
 399         if (status & ATH9K_INT_TXURN)
 400                 sc->debug.stats.istats.txurn++;
 401         if (status & ATH9K_INT_RXPHY)
 402                 sc->debug.stats.istats.rxphyerr++;
 403         if (status & ATH9K_INT_RXKCM)
 404                 sc->debug.stats.istats.rx_keycache_miss++;
 405         if (status & ATH9K_INT_SWBA)
 406                 sc->debug.stats.istats.swba++;
 407         if (status & ATH9K_INT_BMISS)
 408                 sc->debug.stats.istats.bmiss++;
 409         if (status & ATH9K_INT_BNR)
 410                 sc->debug.stats.istats.bnr++;
 411         if (status & ATH9K_INT_CST)
 412                 sc->debug.stats.istats.cst++;
 413         if (status & ATH9K_INT_GTT)
 414                 sc->debug.stats.istats.gtt++;
 415         if (status & ATH9K_INT_TIM)
 416                 sc->debug.stats.istats.tim++;
 417         if (status & ATH9K_INT_CABEND)
 418                 sc->debug.stats.istats.cabend++;
 419         if (status & ATH9K_INT_DTIMSYNC)
 420                 sc->debug.stats.istats.dtimsync++;
 421         if (status & ATH9K_INT_DTIM)
 422                 sc->debug.stats.istats.dtim++;
 423         if (status & ATH9K_INT_TSFOOR)
 424                 sc->debug.stats.istats.tsfoor++;
 425         if (status & ATH9K_INT_MCI)
 426                 sc->debug.stats.istats.mci++;
 427         if (status & ATH9K_INT_GENTIMER)
 428                 sc->debug.stats.istats.gen_timer++;
 429 }
 430
 431 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
 432                                    size_t count, loff_t *ppos)
 433 {
 434         struct ath_softc *sc = file->private_data;
 435         unsigned int len = 0;
 436         int rv;
 437         int mxlen = 4000;
 438         char *buf = kmalloc(mxlen, GFP_KERNEL);
 439         if (!buf)
 440                 return -ENOMEM;
 441
 442 #define PR_IS(a, s)                                             \
 443         do {                                                    \
 444                 len += snprintf(buf + len, mxlen - len,         \
 445                                 "%21s: %10u\n", a,              \
 446                                 sc->debug.stats.istats.s);      \
 447         } while (0)
 448
 449         if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 450                 PR_IS("RXLP", rxlp);
 451                 PR_IS("RXHP", rxhp);
 452                 PR_IS("WATHDOG", bb_watchdog);
 453         } else {
 454                 PR_IS("RX", rxok);
 455         }
 456         PR_IS("RXEOL", rxeol);
 457         PR_IS("RXORN", rxorn);
 458         PR_IS("TX", txok);
 459         PR_IS("TXURN", txurn);
 460         PR_IS("MIB", mib);
 461         PR_IS("RXPHY", rxphyerr);
 462         PR_IS("RXKCM", rx_keycache_miss);
 463         PR_IS("SWBA", swba);
 464         PR_IS("BMISS", bmiss);
 465         PR_IS("BNR", bnr);
 466         PR_IS("CST", cst);
 467         PR_IS("GTT", gtt);
 468         PR_IS("TIM", tim);
 469         PR_IS("CABEND", cabend);
 470         PR_IS("DTIMSYNC", dtimsync);
 471         PR_IS("DTIM", dtim);
 472         PR_IS("TSFOOR", tsfoor);
 473         PR_IS("MCI", mci);
 474         PR_IS("GENTIMER", gen_timer);
 475         PR_IS("TOTAL", total);
 476
 477         len += snprintf(buf + len, mxlen - len,
 478                         "SYNC_CAUSE stats:\n");
 479
 480         PR_IS("Sync-All", sync_cause_all);
 481         PR_IS("RTC-IRQ", sync_rtc_irq);
 482         PR_IS("MAC-IRQ", sync_mac_irq);
 483         PR_IS("EEPROM-Illegal-Access", eeprom_illegal_access);
 484         PR_IS("APB-Timeout", apb_timeout);
 485         PR_IS("PCI-Mode-Conflict", pci_mode_conflict);
 486         PR_IS("HOST1-Fatal", host1_fatal);
 487         PR_IS("HOST1-Perr", host1_perr);
 488         PR_IS("TRCV-FIFO-Perr", trcv_fifo_perr);
 489         PR_IS("RADM-CPL-EP", radm_cpl_ep);
 490         PR_IS("RADM-CPL-DLLP-Abort", radm_cpl_dllp_abort);
 491         PR_IS("RADM-CPL-TLP-Abort", radm_cpl_tlp_abort);
 492         PR_IS("RADM-CPL-ECRC-Err", radm_cpl_ecrc_err);
 493         PR_IS("RADM-CPL-Timeout", radm_cpl_timeout);
 494         PR_IS("Local-Bus-Timeout", local_timeout);
 495         PR_IS("PM-Access", pm_access);
 496         PR_IS("MAC-Awake", mac_awake);
 497         PR_IS("MAC-Asleep", mac_asleep);
 498         PR_IS("MAC-Sleep-Access", mac_sleep_access);
 499
 500         if (len > mxlen)
 501                 len = mxlen;
 502
 503         rv = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 504         kfree(buf);
 505         return rv;
 506 }
 507
 508 static const struct file_operations fops_interrupt = {
 509         .read = read_file_interrupt,
 510         .open = simple_open,
 511         .owner = THIS_MODULE,
 512         .llseek = default_llseek,
 513 };
 514
 515 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
 516                               size_t count, loff_t *ppos)
 517 {
 518         struct ath_softc *sc = file->private_data;
 519         char *buf;
 520         unsigned int len = 0, size = 2048;
 521         ssize_t retval = 0;
 522
 523         buf = kzalloc(size, GFP_KERNEL);
 524         if (buf == NULL)
 525                 return -ENOMEM;
 526
 527         len += sprintf(buf, "%30s %10s%10s%10s\n\n",
 528                        "BE", "BK", "VI", "VO");
 529
 530         PR("MPDUs Queued:    ", queued);
 531         PR("MPDUs Completed: ", completed);
 532         PR("MPDUs XRetried:  ", xretries);
 533         PR("Aggregates:      ", a_aggr);
 534         PR("AMPDUs Queued HW:", a_queued_hw);
 535         PR("AMPDUs Queued SW:", a_queued_sw);
 536         PR("AMPDUs Completed:", a_completed);
 537         PR("AMPDUs Retried:  ", a_retries);
 538         PR("AMPDUs XRetried: ", a_xretries);
 539         PR("FIFO Underrun:   ", fifo_underrun);
 540         PR("TXOP Exceeded:   ", xtxop);
 541         PR("TXTIMER Expiry:  ", timer_exp);
 542         PR("DESC CFG Error:  ", desc_cfg_err);
 543         PR("DATA Underrun:   ", data_underrun);
 544         PR("DELIM Underrun:  ", delim_underrun);
 545         PR("TX-Pkts-All:     ", tx_pkts_all);
 546         PR("TX-Bytes-All:    ", tx_bytes_all);
 547         PR("HW-put-tx-buf:   ", puttxbuf);
 548         PR("HW-tx-start:     ", txstart);
 549         PR("HW-tx-proc-desc: ", txprocdesc);
 550         PR("TX-Failed:       ", txfailed);
 551
 552         if (len > size)
 553                 len = size;
 554
 555         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 556         kfree(buf);
 557
 558         return retval;
 559 }
 560
 561 static ssize_t read_file_queues(struct file *file, char __user *user_buf,
 562                                 size_t count, loff_t *ppos)
 563 {
 564         struct ath_softc *sc = file->private_data;
 565         struct ath_txq *txq;
 566         char *buf;
 567         unsigned int len = 0, size = 1024;
 568         ssize_t retval = 0;
 569         int i;
 570         char *qname[4] = {"VO", "VI", "BE", "BK"};
 571
 572         buf = kzalloc(size, GFP_KERNEL);
 573         if (buf == NULL)
 574                 return -ENOMEM;
 575
 576         for (i = 0; i < IEEE80211_NUM_ACS; i++) {
 577                 txq = sc->tx.txq_map[i];
 578                 len += snprintf(buf + len, size - len, "(%s): ", qname[i]);
 579
 580                 ath_txq_lock(sc, txq);
 581
 582                 len += snprintf(buf + len, size - len, "%s: %d ",
 583                                 "qnum", txq->axq_qnum);
 584                 len += snprintf(buf + len, size - len, "%s: %2d ",
 585                                 "qdepth", txq->axq_depth);
 586                 len += snprintf(buf + len, size - len, "%s: %2d ",
 587                                 "ampdu-depth", txq->axq_ampdu_depth);
 588                 len += snprintf(buf + len, size - len, "%s: %3d ",
 589                                 "pending", txq->pending_frames);
 590                 len += snprintf(buf + len, size - len, "%s: %d\n",
 591                                 "stopped", txq->stopped);
 592
 593                 ath_txq_unlock(sc, txq);
 594         }
 595
 596         if (len > size)
 597                 len = size;
 598
 599         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 600         kfree(buf);
 601
 602         return retval;
 603 }
 604
 605 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
 606                               size_t count, loff_t *ppos)
 607 {
 608         struct ath_softc *sc = file->private_data;
 609         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 610         struct ieee80211_hw *hw = sc->hw;
 611         struct ath9k_vif_iter_data iter_data;
 612         char buf[512];
 613         unsigned int len = 0;
 614         ssize_t retval = 0;
 615         unsigned int reg;
 616         u32 rxfilter;
 617
 618         len += snprintf(buf + len, sizeof(buf) - len,
 619                         "BSSID: %pM\n", common->curbssid);
 620         len += snprintf(buf + len, sizeof(buf) - len,
 621                         "BSSID-MASK: %pM\n", common->bssidmask);
 622         len += snprintf(buf + len, sizeof(buf) - len,
 623                         "OPMODE: %s\n", ath_opmode_to_string(sc->sc_ah->opmode));
 624
 625         ath9k_ps_wakeup(sc);
 626         rxfilter = ath9k_hw_getrxfilter(sc->sc_ah);
 627         ath9k_ps_restore(sc);
 628
 629         len += snprintf(buf + len, sizeof(buf) - len,
 630                         "RXFILTER: 0x%x", rxfilter);
 631
 632         if (rxfilter & ATH9K_RX_FILTER_UCAST)
 633                 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
 634         if (rxfilter & ATH9K_RX_FILTER_MCAST)
 635                 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
 636         if (rxfilter & ATH9K_RX_FILTER_BCAST)
 637                 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
 638         if (rxfilter & ATH9K_RX_FILTER_CONTROL)
 639                 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
 640         if (rxfilter & ATH9K_RX_FILTER_BEACON)
 641                 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
 642         if (rxfilter & ATH9K_RX_FILTER_PROM)
 643                 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
 644         if (rxfilter & ATH9K_RX_FILTER_PROBEREQ)
 645                 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
 646         if (rxfilter & ATH9K_RX_FILTER_PHYERR)
 647                 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR");
 648         if (rxfilter & ATH9K_RX_FILTER_MYBEACON)
 649                 len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON");
 650         if (rxfilter & ATH9K_RX_FILTER_COMP_BAR)
 651                 len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
 652         if (rxfilter & ATH9K_RX_FILTER_PSPOLL)
 653                 len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL");
 654         if (rxfilter & ATH9K_RX_FILTER_PHYRADAR)
 655                 len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
 656         if (rxfilter & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
 657                 len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL");
 658         if (rxfilter & ATH9K_RX_FILTER_CONTROL_WRAPPER)
 659                 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL_WRAPPER");
 660
 661         len += snprintf(buf + len, sizeof(buf) - len, "\n");
 662
 663         reg = sc->sc_ah->imask;
 664
 665         len += snprintf(buf + len, sizeof(buf) - len, "INTERRUPT-MASK: 0x%x", reg);
 666
 667         if (reg & ATH9K_INT_SWBA)
 668                 len += snprintf(buf + len, sizeof(buf) - len, " SWBA");
 669         if (reg & ATH9K_INT_BMISS)
 670                 len += snprintf(buf + len, sizeof(buf) - len, " BMISS");
 671         if (reg & ATH9K_INT_CST)
 672                 len += snprintf(buf + len, sizeof(buf) - len, " CST");
 673         if (reg & ATH9K_INT_RX)
 674                 len += snprintf(buf + len, sizeof(buf) - len, " RX");
 675         if (reg & ATH9K_INT_RXHP)
 676                 len += snprintf(buf + len, sizeof(buf) - len, " RXHP");
 677         if (reg & ATH9K_INT_RXLP)
 678                 len += snprintf(buf + len, sizeof(buf) - len, " RXLP");
 679         if (reg & ATH9K_INT_BB_WATCHDOG)
 680                 len += snprintf(buf + len, sizeof(buf) - len, " BB_WATCHDOG");
 681
 682         len += snprintf(buf + len, sizeof(buf) - len, "\n");
 683
 684         ath9k_calculate_iter_data(hw, NULL, &iter_data);
 685
 686         len += snprintf(buf + len, sizeof(buf) - len,
 687                         "VIF-COUNTS: AP: %i STA: %i MESH: %i WDS: %i"
 688                         " ADHOC: %i TOTAL: %hi BEACON-VIF: %hi\n",
 689                         iter_data.naps, iter_data.nstations, iter_data.nmeshes,
 690                         iter_data.nwds, iter_data.nadhocs,
 691                         sc->nvifs, sc->nbcnvifs);
 692
 693         if (len > sizeof(buf))
 694                 len = sizeof(buf);
 695
 696         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 697         return retval;
 698 }
 699
 700 static ssize_t read_file_reset(struct file *file, char __user *user_buf,
 701                                size_t count, loff_t *ppos)
 702 {
 703         struct ath_softc *sc = file->private_data;
 704         char buf[512];
 705         unsigned int len = 0;
 706
 707         len += snprintf(buf + len, sizeof(buf) - len,
 708                         "%17s: %2d\n", "Baseband Hang",
 709                         sc->debug.stats.reset[RESET_TYPE_BB_HANG]);
 710         len += snprintf(buf + len, sizeof(buf) - len,
 711                         "%17s: %2d\n", "Baseband Watchdog",
 712                         sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG]);
 713         len += snprintf(buf + len, sizeof(buf) - len,
 714                         "%17s: %2d\n", "Fatal HW Error",
 715                         sc->debug.stats.reset[RESET_TYPE_FATAL_INT]);
 716         len += snprintf(buf + len, sizeof(buf) - len,
 717                         "%17s: %2d\n", "TX HW error",
 718                         sc->debug.stats.reset[RESET_TYPE_TX_ERROR]);
 719         len += snprintf(buf + len, sizeof(buf) - len,
 720                         "%17s: %2d\n", "TX Path Hang",
 721                         sc->debug.stats.reset[RESET_TYPE_TX_HANG]);
 722         len += snprintf(buf + len, sizeof(buf) - len,
 723                         "%17s: %2d\n", "PLL RX Hang",
 724                         sc->debug.stats.reset[RESET_TYPE_PLL_HANG]);
 725         len += snprintf(buf + len, sizeof(buf) - len,
 726                         "%17s: %2d\n", "MCI Reset",
 727                         sc->debug.stats.reset[RESET_TYPE_MCI]);
 728
 729         if (len > sizeof(buf))
 730                 len = sizeof(buf);
 731
 732         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 733 }
 734
 735 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 736                        struct ath_tx_status *ts, struct ath_txq *txq,
 737                        unsigned int flags)
 738 {
 739 #define TX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].ts\
 740                         [sc->debug.tsidx].c)
 741         int qnum = txq->axq_qnum;
 742
 743         TX_STAT_INC(qnum, tx_pkts_all);
 744         sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
 745
 746         if (bf_isampdu(bf)) {
 747                 if (flags & ATH_TX_ERROR)
 748                         TX_STAT_INC(qnum, a_xretries);
 749                 else
 750                         TX_STAT_INC(qnum, a_completed);
 751         } else {
 752                 if (ts->ts_status & ATH9K_TXERR_XRETRY)
 753                         TX_STAT_INC(qnum, xretries);
 754                 else
 755                         TX_STAT_INC(qnum, completed);
 756         }
 757
 758         if (ts->ts_status & ATH9K_TXERR_FIFO)
 759                 TX_STAT_INC(qnum, fifo_underrun);
 760         if (ts->ts_status & ATH9K_TXERR_XTXOP)
 761                 TX_STAT_INC(qnum, xtxop);
 762         if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
 763                 TX_STAT_INC(qnum, timer_exp);
 764         if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
 765                 TX_STAT_INC(qnum, desc_cfg_err);
 766         if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
 767                 TX_STAT_INC(qnum, data_underrun);
 768         if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
 769                 TX_STAT_INC(qnum, delim_underrun);
 770
 771 #ifdef CONFIG_ATH9K_MAC_DEBUG
 772         spin_lock(&sc->debug.samp_lock);
 773         TX_SAMP_DBG(jiffies) = jiffies;
 774         TX_SAMP_DBG(rssi_ctl0) = ts->ts_rssi_ctl0;
 775         TX_SAMP_DBG(rssi_ctl1) = ts->ts_rssi_ctl1;
 776         TX_SAMP_DBG(rssi_ctl2) = ts->ts_rssi_ctl2;
 777         TX_SAMP_DBG(rssi_ext0) = ts->ts_rssi_ext0;
 778         TX_SAMP_DBG(rssi_ext1) = ts->ts_rssi_ext1;
 779         TX_SAMP_DBG(rssi_ext2) = ts->ts_rssi_ext2;
 780         TX_SAMP_DBG(rateindex) = ts->ts_rateindex;
 781         TX_SAMP_DBG(isok) = !!(ts->ts_status & ATH9K_TXERR_MASK);
 782         TX_SAMP_DBG(rts_fail_cnt) = ts->ts_shortretry;
 783         TX_SAMP_DBG(data_fail_cnt) = ts->ts_longretry;
 784         TX_SAMP_DBG(rssi) = ts->ts_rssi;
 785         TX_SAMP_DBG(tid) = ts->tid;
 786         TX_SAMP_DBG(qid) = ts->qid;
 787
 788         if (ts->ts_flags & ATH9K_TX_BA) {
 789                 TX_SAMP_DBG(ba_low) = ts->ba_low;
 790                 TX_SAMP_DBG(ba_high) = ts->ba_high;
 791         } else {
 792                 TX_SAMP_DBG(ba_low) = 0;
 793                 TX_SAMP_DBG(ba_high) = 0;
 794         }
 795
 796         sc->debug.tsidx = (sc->debug.tsidx + 1) % ATH_DBG_MAX_SAMPLES;
 797         spin_unlock(&sc->debug.samp_lock);
 798 #endif
 799
 800 #undef TX_SAMP_DBG
 801 }
 802
 803 static const struct file_operations fops_xmit = {
 804         .read = read_file_xmit,
 805         .open = simple_open,
 806         .owner = THIS_MODULE,
 807         .llseek = default_llseek,
 808 };
 809
 810 static const struct file_operations fops_queues = {
 811         .read = read_file_queues,
 812         .open = simple_open,
 813         .owner = THIS_MODULE,
 814         .llseek = default_llseek,
 815 };
 816
 817 static const struct file_operations fops_misc = {
 818         .read = read_file_misc,
 819         .open = simple_open,
 820         .owner = THIS_MODULE,
 821         .llseek = default_llseek,
 822 };
 823
 824 static const struct file_operations fops_reset = {
 825         .read = read_file_reset,
 826         .open = simple_open,
 827         .owner = THIS_MODULE,
 828         .llseek = default_llseek,
 829 };
 830
 831 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 832                               size_t count, loff_t *ppos)
 833 {
 834 #define PHY_ERR(s, p) \
 835         len += snprintf(buf + len, size - len, "%22s : %10u\n", s, \
 836                         sc->debug.stats.rxstats.phy_err_stats[p]);
 837
 838 #define RXS_ERR(s, e)                                       \
 839         do {                                                \
 840                 len += snprintf(buf + len, size - len,      \
 841                                 "%22s : %10u\n", s,         \
 842                                 sc->debug.stats.rxstats.e); \
 843         } while (0)
 844
 845         struct ath_softc *sc = file->private_data;
 846         char *buf;
 847         unsigned int len = 0, size = 1600;
 848         ssize_t retval = 0;
 849
 850         buf = kzalloc(size, GFP_KERNEL);
 851         if (buf == NULL)
 852                 return -ENOMEM;
 853
 854         RXS_ERR("CRC ERR", crc_err);
 855         RXS_ERR("DECRYPT CRC ERR", decrypt_crc_err);
 856         RXS_ERR("PHY ERR", phy_err);
 857         RXS_ERR("MIC ERR", mic_err);
 858         RXS_ERR("PRE-DELIM CRC ERR", pre_delim_crc_err);
 859         RXS_ERR("POST-DELIM CRC ERR", post_delim_crc_err);
 860         RXS_ERR("DECRYPT BUSY ERR", decrypt_busy_err);
 861         RXS_ERR("RX-LENGTH-ERR", rx_len_err);
 862         RXS_ERR("RX-OOM-ERR", rx_oom_err);
 863         RXS_ERR("RX-RATE-ERR", rx_rate_err);
 864         RXS_ERR("RX-TOO-MANY-FRAGS", rx_too_many_frags_err);
 865
 866         PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN);
 867         PHY_ERR("TIMING ERR", ATH9K_PHYERR_TIMING);
 868         PHY_ERR("PARITY ERR", ATH9K_PHYERR_PARITY);
 869         PHY_ERR("RATE ERR", ATH9K_PHYERR_RATE);
 870         PHY_ERR("LENGTH ERR", ATH9K_PHYERR_LENGTH);
 871         PHY_ERR("RADAR ERR", ATH9K_PHYERR_RADAR);
 872         PHY_ERR("SERVICE ERR", ATH9K_PHYERR_SERVICE);
 873         PHY_ERR("TOR ERR", ATH9K_PHYERR_TOR);
 874         PHY_ERR("OFDM-TIMING ERR", ATH9K_PHYERR_OFDM_TIMING);
 875         PHY_ERR("OFDM-SIGNAL-PARITY ERR", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
 876         PHY_ERR("OFDM-RATE ERR", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
 877         PHY_ERR("OFDM-LENGTH ERR", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
 878         PHY_ERR("OFDM-POWER-DROP ERR", ATH9K_PHYERR_OFDM_POWER_DROP);
 879         PHY_ERR("OFDM-SERVICE ERR", ATH9K_PHYERR_OFDM_SERVICE);
 880         PHY_ERR("OFDM-RESTART ERR", ATH9K_PHYERR_OFDM_RESTART);
 881         PHY_ERR("FALSE-RADAR-EXT ERR", ATH9K_PHYERR_FALSE_RADAR_EXT);
 882         PHY_ERR("CCK-TIMING ERR", ATH9K_PHYERR_CCK_TIMING);
 883         PHY_ERR("CCK-HEADER-CRC ERR", ATH9K_PHYERR_CCK_HEADER_CRC);
 884         PHY_ERR("CCK-RATE ERR", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
 885         PHY_ERR("CCK-SERVICE ERR", ATH9K_PHYERR_CCK_SERVICE);
 886         PHY_ERR("CCK-RESTART ERR", ATH9K_PHYERR_CCK_RESTART);
 887         PHY_ERR("CCK-LENGTH ERR", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
 888         PHY_ERR("CCK-POWER-DROP ERR", ATH9K_PHYERR_CCK_POWER_DROP);
 889         PHY_ERR("HT-CRC ERR", ATH9K_PHYERR_HT_CRC_ERROR);
 890         PHY_ERR("HT-LENGTH ERR", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
 891         PHY_ERR("HT-RATE ERR", ATH9K_PHYERR_HT_RATE_ILLEGAL);
 892
 893         RXS_ERR("RX-Pkts-All", rx_pkts_all);
 894         RXS_ERR("RX-Bytes-All", rx_bytes_all);
 895         RXS_ERR("RX-Beacons", rx_beacons);
 896         RXS_ERR("RX-Frags", rx_frags);
 897
 898         if (len > size)
 899                 len = size;
 900
 901         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 902         kfree(buf);
 903
 904         return retval;
 905
 906 #undef RXS_ERR
 907 #undef PHY_ERR
 908 }
 909
 910 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
 911 {
 912 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
 913 #define RX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].rs\
 914                         [sc->debug.rsidx].c)
 915
 916         RX_STAT_INC(rx_pkts_all);
 917         sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen;
 918
 919         if (rs->rs_status & ATH9K_RXERR_CRC)
 920                 RX_STAT_INC(crc_err);
 921         if (rs->rs_status & ATH9K_RXERR_DECRYPT)
 922                 RX_STAT_INC(decrypt_crc_err);
 923         if (rs->rs_status & ATH9K_RXERR_MIC)
 924                 RX_STAT_INC(mic_err);
 925         if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
 926                 RX_STAT_INC(pre_delim_crc_err);
 927         if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
 928                 RX_STAT_INC(post_delim_crc_err);
 929         if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
 930                 RX_STAT_INC(decrypt_busy_err);
 931
 932         if (rs->rs_status & ATH9K_RXERR_PHY) {
 933                 RX_STAT_INC(phy_err);
 934                 if (rs->rs_phyerr < ATH9K_PHYERR_MAX)
 935                         RX_PHY_ERR_INC(rs->rs_phyerr);
 936         }
 937
 938 #ifdef CONFIG_ATH9K_MAC_DEBUG
 939         spin_lock(&sc->debug.samp_lock);
 940         RX_SAMP_DBG(jiffies) = jiffies;
 941         RX_SAMP_DBG(rssi_ctl0) = rs->rs_rssi_ctl0;
 942         RX_SAMP_DBG(rssi_ctl1) = rs->rs_rssi_ctl1;
 943         RX_SAMP_DBG(rssi_ctl2) = rs->rs_rssi_ctl2;
 944         RX_SAMP_DBG(rssi_ext0) = rs->rs_rssi_ext0;
 945         RX_SAMP_DBG(rssi_ext1) = rs->rs_rssi_ext1;
 946         RX_SAMP_DBG(rssi_ext2) = rs->rs_rssi_ext2;
 947         RX_SAMP_DBG(antenna) = rs->rs_antenna;
 948         RX_SAMP_DBG(rssi) = rs->rs_rssi;
 949         RX_SAMP_DBG(rate) = rs->rs_rate;
 950         RX_SAMP_DBG(is_mybeacon) = rs->is_mybeacon;
 951
 952         sc->debug.rsidx = (sc->debug.rsidx + 1) % ATH_DBG_MAX_SAMPLES;
 953         spin_unlock(&sc->debug.samp_lock);
 954
 955 #endif
 956
 957 #undef RX_PHY_ERR_INC
 958 #undef RX_SAMP_DBG
 959 }
 960
 961 static const struct file_operations fops_recv = {
 962         .read = read_file_recv,
 963         .open = simple_open,
 964         .owner = THIS_MODULE,
 965         .llseek = default_llseek,
 966 };
 967
 968 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
 969                                 size_t count, loff_t *ppos)
 970 {
 971         struct ath_softc *sc = file->private_data;
 972         char buf[32];
 973         unsigned int len;
 974
 975         len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
 976         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 977 }
 978
 979 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
 980                              size_t count, loff_t *ppos)
 981 {
 982         struct ath_softc *sc = file->private_data;
 983         unsigned long regidx;
 984         char buf[32];
 985         ssize_t len;
 986
 987         len = min(count, sizeof(buf) - 1);
 988         if (copy_from_user(buf, user_buf, len))
 989                 return -EFAULT;
 990
 991         buf[len] = '\0';
 992         if (strict_strtoul(buf, 0, &regidx))
 993                 return -EINVAL;
 994
 995         sc->debug.regidx = regidx;
 996         return count;
 997 }
 998
 999 static const struct file_operations fops_regidx = {
1000         .read = read_file_regidx,
1001         .write = write_file_regidx,
1002         .open = simple_open,
1003         .owner = THIS_MODULE,
1004         .llseek = default_llseek,
1005 };
1006
1007 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
1008                              size_t count, loff_t *ppos)
1009 {
1010         struct ath_softc *sc = file->private_data;
1011         struct ath_hw *ah = sc->sc_ah;
1012         char buf[32];
1013         unsigned int len;
1014         u32 regval;
1015
1016         ath9k_ps_wakeup(sc);
1017         regval = REG_READ_D(ah, sc->debug.regidx);
1018         ath9k_ps_restore(sc);
1019         len = sprintf(buf, "0x%08x\n", regval);
1020         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1021 }
1022
1023 static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
1024                              size_t count, loff_t *ppos)
1025 {
1026         struct ath_softc *sc = file->private_data;
1027         struct ath_hw *ah = sc->sc_ah;
1028         unsigned long regval;
1029         char buf[32];
1030         ssize_t len;
1031
1032         len = min(count, sizeof(buf) - 1);
1033         if (copy_from_user(buf, user_buf, len))
1034                 return -EFAULT;
1035
1036         buf[len] = '\0';
1037         if (strict_strtoul(buf, 0, &regval))
1038                 return -EINVAL;
1039
1040         ath9k_ps_wakeup(sc);
1041         REG_WRITE_D(ah, sc->debug.regidx, regval);
1042         ath9k_ps_restore(sc);
1043         return count;
1044 }
1045
1046 static const struct file_operations fops_regval = {
1047         .read = read_file_regval,
1048         .write = write_file_regval,
1049         .open = simple_open,
1050         .owner = THIS_MODULE,
1051         .llseek = default_llseek,
1052 };
1053
1054 #define REGDUMP_LINE_SIZE       20
1055
1056 static int open_file_regdump(struct inode *inode, struct file *file)
1057 {
1058         struct ath_softc *sc = inode->i_private;
1059         unsigned int len = 0;
1060         u8 *buf;
1061         int i;
1062         unsigned long num_regs, regdump_len, max_reg_offset;
1063
1064         max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x16bd4 : 0xb500;
1065         num_regs = max_reg_offset / 4 + 1;
1066         regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
1067         buf = vmalloc(regdump_len);
1068         if (!buf)
1069                 return -ENOMEM;
1070
1071         ath9k_ps_wakeup(sc);
1072         for (i = 0; i < num_regs; i++)
1073                 len += scnprintf(buf + len, regdump_len - len,
1074                         "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
1075         ath9k_ps_restore(sc);
1076
1077         file->private_data = buf;
1078
1079         return 0;
1080 }
1081
1082 static const struct file_operations fops_regdump = {
1083         .open = open_file_regdump,
1084         .read = ath9k_debugfs_read_buf,
1085         .release = ath9k_debugfs_release_buf,
1086         .owner = THIS_MODULE,
1087         .llseek = default_llseek,/* read accesses f_pos */
1088 };
1089
1090 static ssize_t read_file_dump_nfcal(struct file *file, char __user *user_buf,
1091                                     size_t count, loff_t *ppos)
1092 {
1093         struct ath_softc *sc = file->private_data;
1094         struct ath_hw *ah = sc->sc_ah;
1095         struct ath9k_nfcal_hist *h = sc->caldata.nfCalHist;
1096         struct ath_common *common = ath9k_hw_common(ah);
1097         struct ieee80211_conf *conf = &common->hw->conf;
1098         u32 len = 0, size = 1500;
1099         u32 i, j;
1100         ssize_t retval = 0;
1101         char *buf;
1102         u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
1103         u8 nread;
1104
1105         buf = kzalloc(size, GFP_KERNEL);
1106         if (!buf)
1107                 return -ENOMEM;
1108
1109         len += snprintf(buf + len, size - len,
1110                         "Channel Noise Floor : %d\n", ah->noise);
1111         len += snprintf(buf + len, size - len,
1112                         "Chain | privNF | # Readings | NF Readings\n");
1113         for (i = 0; i < NUM_NF_READINGS; i++) {
1114                 if (!(chainmask & (1 << i)) ||
1115                     ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
1116                         continue;
1117
1118                 nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount;
1119                 len += snprintf(buf + len, size - len, " %d\t %d\t %d\t\t",
1120                                 i, h[i].privNF, nread);
1121                 for (j = 0; j < nread; j++)
1122                         len += snprintf(buf + len, size - len,
1123                                         " %d", h[i].nfCalBuffer[j]);
1124                 len += snprintf(buf + len, size - len, "\n");
1125         }
1126
1127         if (len > size)
1128                 len = size;
1129
1130         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1131         kfree(buf);
1132
1133         return retval;
1134 }
1135
1136 static const struct file_operations fops_dump_nfcal = {
1137         .read = read_file_dump_nfcal,
1138         .open = simple_open,
1139         .owner = THIS_MODULE,
1140         .llseek = default_llseek,
1141 };
1142
1143 static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
1144                                      size_t count, loff_t *ppos)
1145 {
1146         struct ath_softc *sc = file->private_data;
1147         struct ath_hw *ah = sc->sc_ah;
1148         u32 len = 0, size = 1500;
1149         ssize_t retval = 0;
1150         char *buf;
1151
1152         buf = kzalloc(size, GFP_KERNEL);
1153         if (!buf)
1154                 return -ENOMEM;
1155
1156         len = ah->eep_ops->dump_eeprom(ah, true, buf, len, size);
1157
1158         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1159         kfree(buf);
1160
1161         return retval;
1162 }
1163
1164 static const struct file_operations fops_base_eeprom = {
1165         .read = read_file_base_eeprom,
1166         .open = simple_open,
1167         .owner = THIS_MODULE,
1168         .llseek = default_llseek,
1169 };
1170
1171 static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf,
1172                                       size_t count, loff_t *ppos)
1173 {
1174         struct ath_softc *sc = file->private_data;
1175         struct ath_hw *ah = sc->sc_ah;
1176         u32 len = 0, size = 6000;
1177         char *buf;
1178         size_t retval;
1179
1180         buf = kzalloc(size, GFP_KERNEL);
1181         if (buf == NULL)
1182                 return -ENOMEM;
1183
1184         len = ah->eep_ops->dump_eeprom(ah, false, buf, len, size);
1185
1186         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1187         kfree(buf);
1188
1189         return retval;
1190 }
1191
1192 static const struct file_operations fops_modal_eeprom = {
1193         .read = read_file_modal_eeprom,
1194         .open = simple_open,
1195         .owner = THIS_MODULE,
1196         .llseek = default_llseek,
1197 };
1198
1199 #ifdef CONFIG_ATH9K_MAC_DEBUG
1200
1201 void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
1202 {
1203 #define ATH_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].c)
1204         struct ath_hw *ah = sc->sc_ah;
1205         struct ath_common *common = ath9k_hw_common(ah);
1206         unsigned long flags;
1207         int i;
1208
1209         ath9k_ps_wakeup(sc);
1210
1211         spin_lock_bh(&sc->debug.samp_lock);
1212
1213         spin_lock_irqsave(&common->cc_lock, flags);
1214         ath_hw_cycle_counters_update(common);
1215
1216         ATH_SAMP_DBG(cc.cycles) = common->cc_ani.cycles;
1217         ATH_SAMP_DBG(cc.rx_busy) = common->cc_ani.rx_busy;
1218         ATH_SAMP_DBG(cc.rx_frame) = common->cc_ani.rx_frame;
1219         ATH_SAMP_DBG(cc.tx_frame) = common->cc_ani.tx_frame;
1220         spin_unlock_irqrestore(&common->cc_lock, flags);
1221
1222         ATH_SAMP_DBG(noise) = ah->noise;
1223
1224         REG_WRITE_D(ah, AR_MACMISC,
1225                   ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
1226                    (AR_MACMISC_MISC_OBS_BUS_1 <<
1227                     AR_MACMISC_MISC_OBS_BUS_MSB_S)));
1228
1229         for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
1230                 ATH_SAMP_DBG(dma_dbg_reg_vals[i]) = REG_READ_D(ah,
1231                                 AR_DMADBG_0 + (i * sizeof(u32)));
1232
1233         ATH_SAMP_DBG(pcu_obs) = REG_READ_D(ah, AR_OBS_BUS_1);
1234         ATH_SAMP_DBG(pcu_cr) = REG_READ_D(ah, AR_CR);
1235
1236         memcpy(ATH_SAMP_DBG(nfCalHist), sc->caldata.nfCalHist,
1237                         sizeof(ATH_SAMP_DBG(nfCalHist)));
1238
1239         sc->debug.sampidx = (sc->debug.sampidx + 1) % ATH_DBG_MAX_SAMPLES;
1240         spin_unlock_bh(&sc->debug.samp_lock);
1241         ath9k_ps_restore(sc);
1242
1243 #undef ATH_SAMP_DBG
1244 }
1245
1246 static int open_file_bb_mac_samps(struct inode *inode, struct file *file)
1247 {
1248 #define ATH_SAMP_DBG(c) bb_mac_samp[sampidx].c
1249         struct ath_softc *sc = inode->i_private;
1250         struct ath_hw *ah = sc->sc_ah;
1251         struct ath_common *common = ath9k_hw_common(ah);
1252         struct ieee80211_conf *conf = &common->hw->conf;
1253         struct ath_dbg_bb_mac_samp *bb_mac_samp;
1254         struct ath9k_nfcal_hist *h;
1255         int i, j, qcuOffset = 0, dcuOffset = 0;
1256         u32 *qcuBase, *dcuBase, size = 30000, len = 0;
1257         u32 sampidx = 0;
1258         u8 *buf;
1259         u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
1260         u8 nread;
1261
1262         if (test_bit(SC_OP_INVALID, &sc->sc_flags))
1263                 return -EAGAIN;
1264
1265         buf = vmalloc(size);
1266         if (!buf)
1267                 return -ENOMEM;
1268         bb_mac_samp = vmalloc(sizeof(*bb_mac_samp) * ATH_DBG_MAX_SAMPLES);
1269         if (!bb_mac_samp) {
1270                 vfree(buf);
1271                 return -ENOMEM;
1272         }
1273         /* Account the current state too */
1274         ath9k_debug_samp_bb_mac(sc);
1275
1276         spin_lock_bh(&sc->debug.samp_lock);
1277         memcpy(bb_mac_samp, sc->debug.bb_mac_samp,
1278                         sizeof(*bb_mac_samp) * ATH_DBG_MAX_SAMPLES);
1279         len += snprintf(buf + len, size - len,
1280                         "Current Sample Index: %d\n", sc->debug.sampidx);
1281         spin_unlock_bh(&sc->debug.samp_lock);
1282
1283         len += snprintf(buf + len, size - len,
1284                         "Raw DMA Debug Dump:\n");
1285         len += snprintf(buf + len, size - len, "Sample |\t");
1286         for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
1287                 len += snprintf(buf + len, size - len, " DMA Reg%d |\t", i);
1288         len += snprintf(buf + len, size - len, "\n");
1289
1290         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1291                 len += snprintf(buf + len, size - len, "%d\t", sampidx);
1292
1293                 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
1294                         len += snprintf(buf + len, size - len, " %08x\t",
1295                                         ATH_SAMP_DBG(dma_dbg_reg_vals[i]));
1296                 len += snprintf(buf + len, size - len, "\n");
1297         }
1298         len += snprintf(buf + len, size - len, "\n");
1299
1300         len += snprintf(buf + len, size - len,
1301                         "Sample Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
1302         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1303                 qcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[0]);
1304                 dcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[4]);
1305
1306                 for (i = 0; i < ATH9K_NUM_QUEUES; i++,
1307                                 qcuOffset += 4, dcuOffset += 5) {
1308                         if (i == 8) {
1309                                 qcuOffset = 0;
1310                                 qcuBase++;
1311                         }
1312
1313                         if (i == 6) {
1314                                 dcuOffset = 0;
1315                                 dcuBase++;
1316                         }
1317                         if (!sc->debug.stats.txstats[i].queued)
1318                                 continue;
1319
1320                         len += snprintf(buf + len, size - len,
1321                                 "%4d %7d    %2x      %1x     %2x         %2x\n",
1322                                 sampidx, i,
1323                                 (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
1324                                 (*qcuBase & (0x8 << qcuOffset)) >>
1325                                 (qcuOffset + 3),
1326                                 ATH_SAMP_DBG(dma_dbg_reg_vals[2]) &
1327                                 (0x7 << (i * 3)) >> (i * 3),
1328                                 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
1329                 }
1330                 len += snprintf(buf + len, size - len, "\n");
1331         }
1332         len += snprintf(buf + len, size - len,
1333                         "samp qcu_sh qcu_fh qcu_comp dcu_comp dcu_arb dcu_fp "
1334                         "ch_idle_dur ch_idle_dur_val txfifo_val0 txfifo_val1 "
1335                         "txfifo_dcu0 txfifo_dcu1 pcu_obs AR_CR\n");
1336
1337         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1338                 qcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[0]);
1339                 dcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[4]);
1340
1341                 len += snprintf(buf + len, size - len, "%4d %5x %5x ", sampidx,
1342                         (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x003c0000) >> 18,
1343                         (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x03c00000) >> 22);
1344                 len += snprintf(buf + len, size - len, "%7x %8x ",
1345                         (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x1c000000) >> 26,
1346                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x3));
1347                 len += snprintf(buf + len, size - len, "%7x %7x ",
1348                         (ATH_SAMP_DBG(dma_dbg_reg_vals[5]) & 0x06000000) >> 25,
1349                         (ATH_SAMP_DBG(dma_dbg_reg_vals[5]) & 0x38000000) >> 27);
1350                 len += snprintf(buf + len, size - len, "%7d %12d ",
1351                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x000003fc) >> 2,
1352                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00000400) >> 10);
1353                 len += snprintf(buf + len, size - len, "%12d %12d ",
1354                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00000800) >> 11,
1355                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00001000) >> 12);
1356                 len += snprintf(buf + len, size - len, "%12d %12d ",
1357                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x0001e000) >> 13,
1358                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x001e0000) >> 17);
1359                 len += snprintf(buf + len, size - len, "0x%07x 0x%07x\n",
1360                                 ATH_SAMP_DBG(pcu_obs), ATH_SAMP_DBG(pcu_cr));
1361         }
1362
1363         len += snprintf(buf + len, size - len,
1364                         "Sample ChNoise Chain privNF #Reading Readings\n");
1365         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1366                 h = ATH_SAMP_DBG(nfCalHist);
1367                 if (!ATH_SAMP_DBG(noise))
1368                         continue;
1369
1370                 for (i = 0; i < NUM_NF_READINGS; i++) {
1371                         if (!(chainmask & (1 << i)) ||
1372                             ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
1373                                 continue;
1374
1375                         nread = AR_PHY_CCA_FILTERWINDOW_LENGTH -
1376                                 h[i].invalidNFcount;
1377                         len += snprintf(buf + len, size - len,
1378                                         "%4d %5d %4d\t   %d\t %d\t",
1379                                         sampidx, ATH_SAMP_DBG(noise),
1380                                         i, h[i].privNF, nread);
1381                         for (j = 0; j < nread; j++)
1382                                 len += snprintf(buf + len, size - len,
1383                                         " %d", h[i].nfCalBuffer[j]);
1384                         len += snprintf(buf + len, size - len, "\n");
1385                 }
1386         }
1387         len += snprintf(buf + len, size - len, "\nCycle counters:\n"
1388                         "Sample Total    Rxbusy   Rxframes Txframes\n");
1389         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1390                 if (!ATH_SAMP_DBG(cc.cycles))
1391                         continue;
1392                 len += snprintf(buf + len, size - len,
1393                                 "%4d %08x %08x %08x %08x\n",
1394                                 sampidx, ATH_SAMP_DBG(cc.cycles),
1395                                 ATH_SAMP_DBG(cc.rx_busy),
1396                                 ATH_SAMP_DBG(cc.rx_frame),
1397                                 ATH_SAMP_DBG(cc.tx_frame));
1398         }
1399
1400         len += snprintf(buf + len, size - len, "Tx status Dump :\n");
1401         len += snprintf(buf + len, size - len,
1402                         "Sample rssi:- ctl0 ctl1 ctl2 ext0 ext1 ext2 comb "
1403                         "isok rts_fail data_fail rate tid qid "
1404                                         "ba_low  ba_high tx_before(ms)\n");
1405         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1406                 for (i = 0; i < ATH_DBG_MAX_SAMPLES; i++) {
1407                         if (!ATH_SAMP_DBG(ts[i].jiffies))
1408                                 continue;
1409                         len += snprintf(buf + len, size - len, "%-14d"
1410                                 "%-4d %-4d %-4d %-4d %-4d %-4d %-4d %-4d %-8d "
1411                                 "%-9d %-4d %-3d %-3d %08x %08x %-11d\n",
1412                                 sampidx,
1413                                 ATH_SAMP_DBG(ts[i].rssi_ctl0),
1414                                 ATH_SAMP_DBG(ts[i].rssi_ctl1),
1415                                 ATH_SAMP_DBG(ts[i].rssi_ctl2),
1416                                 ATH_SAMP_DBG(ts[i].rssi_ext0),
1417                                 ATH_SAMP_DBG(ts[i].rssi_ext1),
1418                                 ATH_SAMP_DBG(ts[i].rssi_ext2),
1419                                 ATH_SAMP_DBG(ts[i].rssi),
1420                                 ATH_SAMP_DBG(ts[i].isok),
1421                                 ATH_SAMP_DBG(ts[i].rts_fail_cnt),
1422                                 ATH_SAMP_DBG(ts[i].data_fail_cnt),
1423                                 ATH_SAMP_DBG(ts[i].rateindex),
1424                                 ATH_SAMP_DBG(ts[i].tid),
1425                                 ATH_SAMP_DBG(ts[i].qid),
1426                                 ATH_SAMP_DBG(ts[i].ba_low),
1427                                 ATH_SAMP_DBG(ts[i].ba_high),
1428                                 jiffies_to_msecs(jiffies -
1429                                         ATH_SAMP_DBG(ts[i].jiffies)));
1430                 }
1431         }
1432
1433         len += snprintf(buf + len, size - len, "Rx status Dump :\n");
1434         len += snprintf(buf + len, size - len, "Sample rssi:- ctl0 ctl1 ctl2 "
1435                         "ext0 ext1 ext2 comb beacon ant rate rx_before(ms)\n");
1436         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1437                 for (i = 0; i < ATH_DBG_MAX_SAMPLES; i++) {
1438                         if (!ATH_SAMP_DBG(rs[i].jiffies))
1439                                 continue;
1440                         len += snprintf(buf + len, size - len, "%-14d"
1441                                 "%-4d %-4d %-4d %-4d %-4d %-4d %-4d %-9s %-2d %02x %-13d\n",
1442                                 sampidx,
1443                                 ATH_SAMP_DBG(rs[i].rssi_ctl0),
1444                                 ATH_SAMP_DBG(rs[i].rssi_ctl1),
1445                                 ATH_SAMP_DBG(rs[i].rssi_ctl2),
1446                                 ATH_SAMP_DBG(rs[i].rssi_ext0),
1447                                 ATH_SAMP_DBG(rs[i].rssi_ext1),
1448                                 ATH_SAMP_DBG(rs[i].rssi_ext2),
1449                                 ATH_SAMP_DBG(rs[i].rssi),
1450                                 ATH_SAMP_DBG(rs[i].is_mybeacon) ?
1451                                 "True" : "False",
1452                                 ATH_SAMP_DBG(rs[i].antenna),
1453                                 ATH_SAMP_DBG(rs[i].rate),
1454                                 jiffies_to_msecs(jiffies -
1455                                         ATH_SAMP_DBG(rs[i].jiffies)));
1456                 }
1457         }
1458
1459         vfree(bb_mac_samp);
1460         file->private_data = buf;
1461
1462         return 0;
1463 #undef ATH_SAMP_DBG
1464 }
1465
1466 static const struct file_operations fops_samps = {
1467         .open = open_file_bb_mac_samps,
1468         .read = ath9k_debugfs_read_buf,
1469         .release = ath9k_debugfs_release_buf,
1470         .owner = THIS_MODULE,
1471         .llseek = default_llseek,
1472 };
1473
1474 #endif
1475
1476 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1477 static ssize_t read_file_btcoex(struct file *file, char __user *user_buf,
1478                                 size_t count, loff_t *ppos)
1479 {
1480         struct ath_softc *sc = file->private_data;
1481         u32 len = 0, size = 1500;
1482         char *buf;
1483         size_t retval;
1484
1485         buf = kzalloc(size, GFP_KERNEL);
1486         if (buf == NULL)
1487                 return -ENOMEM;
1488
1489         if (!sc->sc_ah->common.btcoex_enabled) {
1490                 len = snprintf(buf, size, "%s\n",
1491                                "BTCOEX is disabled");
1492                 goto exit;
1493         }
1494
1495         len = ath9k_dump_btcoex(sc, buf, size);
1496 exit:
1497         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1498         kfree(buf);
1499
1500         return retval;
1501 }
1502
1503 static const struct file_operations fops_btcoex = {
1504         .read = read_file_btcoex,
1505         .open = simple_open,
1506         .owner = THIS_MODULE,
1507         .llseek = default_llseek,
1508 };
1509 #endif
1510
1511 static ssize_t read_file_node_stat(struct file *file, char __user *user_buf,
1512                                    size_t count, loff_t *ppos)
1513 {
1514         struct ath_node *an = file->private_data;
1515         struct ath_softc *sc = an->sc;
1516         struct ath_atx_tid *tid;
1517         struct ath_atx_ac *ac;
1518         struct ath_txq *txq;
1519         u32 len = 0, size = 4096;
1520         char *buf;
1521         size_t retval;
1522         int tidno, acno;
1523
1524         buf = kzalloc(size, GFP_KERNEL);
1525         if (buf == NULL)
1526                 return -ENOMEM;
1527
1528         if (!an->sta->ht_cap.ht_supported) {
1529                 len = snprintf(buf, size, "%s\n",
1530                                "HT not supported");
1531                 goto exit;
1532         }
1533
1534         len = snprintf(buf, size, "Max-AMPDU: %d\n",
1535                        an->maxampdu);
1536         len += snprintf(buf + len, size - len, "MPDU Density: %d\n\n",
1537                         an->mpdudensity);
1538
1539         len += snprintf(buf + len, size - len,
1540                         "%2s%7s\n", "AC", "SCHED");
1541
1542         for (acno = 0, ac = &an->ac[acno];
1543              acno < IEEE80211_NUM_ACS; acno++, ac++) {
1544                 txq = ac->txq;
1545                 ath_txq_lock(sc, txq);
1546                 len += snprintf(buf + len, size - len,
1547                                 "%2d%7d\n",
1548                                 acno, ac->sched);
1549                 ath_txq_unlock(sc, txq);
1550         }
1551
1552         len += snprintf(buf + len, size - len,
1553                         "\n%3s%11s%10s%10s%10s%10s%9s%6s%8s\n",
1554                         "TID", "SEQ_START", "SEQ_NEXT", "BAW_SIZE",
1555                         "BAW_HEAD", "BAW_TAIL", "BAR_IDX", "SCHED", "PAUSED");
1556
1557         for (tidno = 0, tid = &an->tid[tidno];
1558              tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
1559                 txq = tid->ac->txq;
1560                 ath_txq_lock(sc, txq);
1561                 len += snprintf(buf + len, size - len,
1562                                 "%3d%11d%10d%10d%10d%10d%9d%6d%8d\n",
1563                                 tid->tidno, tid->seq_start, tid->seq_next,
1564                                 tid->baw_size, tid->baw_head, tid->baw_tail,
1565                                 tid->bar_index, tid->sched, tid->paused);
1566                 ath_txq_unlock(sc, txq);
1567         }
1568 exit:
1569         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1570         kfree(buf);
1571
1572         return retval;
1573 }
1574
1575 static const struct file_operations fops_node_stat = {
1576         .read = read_file_node_stat,
1577         .open = simple_open,
1578         .owner = THIS_MODULE,
1579         .llseek = default_llseek,
1580 };
1581
1582 void ath9k_sta_add_debugfs(struct ieee80211_hw *hw,
1583                            struct ieee80211_vif *vif,
1584                            struct ieee80211_sta *sta,
1585                            struct dentry *dir)
1586 {
1587         struct ath_node *an = (struct ath_node *)sta->drv_priv;
1588         an->node_stat = debugfs_create_file("node_stat", S_IRUGO,
1589                                             dir, an, &fops_node_stat);
1590 }
1591
1592 void ath9k_sta_remove_debugfs(struct ieee80211_hw *hw,
1593                               struct ieee80211_vif *vif,
1594                               struct ieee80211_sta *sta,
1595                               struct dentry *dir)
1596 {
1597         struct ath_node *an = (struct ath_node *)sta->drv_priv;
1598         debugfs_remove(an->node_stat);
1599 }
1600
1601 /* Ethtool support for get-stats */
1602
1603 #define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
1604 static const char ath9k_gstrings_stats[][ETH_GSTRING_LEN] = {
1605         "tx_pkts_nic",
1606         "tx_bytes_nic",
1607         "rx_pkts_nic",
1608         "rx_bytes_nic",
1609         AMKSTR(d_tx_pkts),
1610         AMKSTR(d_tx_bytes),
1611         AMKSTR(d_tx_mpdus_queued),
1612         AMKSTR(d_tx_mpdus_completed),
1613         AMKSTR(d_tx_mpdu_xretries),
1614         AMKSTR(d_tx_aggregates),
1615         AMKSTR(d_tx_ampdus_queued_hw),
1616         AMKSTR(d_tx_ampdus_queued_sw),
1617         AMKSTR(d_tx_ampdus_completed),
1618         AMKSTR(d_tx_ampdu_retries),
1619         AMKSTR(d_tx_ampdu_xretries),
1620         AMKSTR(d_tx_fifo_underrun),
1621         AMKSTR(d_tx_op_exceeded),
1622         AMKSTR(d_tx_timer_expiry),
1623         AMKSTR(d_tx_desc_cfg_err),
1624         AMKSTR(d_tx_data_underrun),
1625         AMKSTR(d_tx_delim_underrun),
1626         "d_rx_decrypt_crc_err",
1627         "d_rx_phy_err",
1628         "d_rx_mic_err",
1629         "d_rx_pre_delim_crc_err",
1630         "d_rx_post_delim_crc_err",
1631         "d_rx_decrypt_busy_err",
1632
1633         "d_rx_phyerr_radar",
1634         "d_rx_phyerr_ofdm_timing",
1635         "d_rx_phyerr_cck_timing",
1636
1637 };
1638 #define ATH9K_SSTATS_LEN ARRAY_SIZE(ath9k_gstrings_stats)
1639
1640 void ath9k_get_et_strings(struct ieee80211_hw *hw,
1641                           struct ieee80211_vif *vif,
1642                           u32 sset, u8 *data)
1643 {
1644         if (sset == ETH_SS_STATS)
1645                 memcpy(data, *ath9k_gstrings_stats,
1646                        sizeof(ath9k_gstrings_stats));
1647 }
1648
1649 int ath9k_get_et_sset_count(struct ieee80211_hw *hw,
1650                             struct ieee80211_vif *vif, int sset)
1651 {
1652         if (sset == ETH_SS_STATS)
1653                 return ATH9K_SSTATS_LEN;
1654         return 0;
1655 }
1656
1657 #define AWDATA(elem)                                                    \
1658         do {                                                            \
1659                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].elem; \
1660                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].elem; \
1661                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].elem; \
1662                 data[i++] = sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].elem; \
1663         } while (0)
1664
1665 #define AWDATA_RX(elem)                                         \
1666         do {                                                    \
1667                 data[i++] = sc->debug.stats.rxstats.elem;       \
1668         } while (0)
1669
1670 void ath9k_get_et_stats(struct ieee80211_hw *hw,
1671                         struct ieee80211_vif *vif,
1672                         struct ethtool_stats *stats, u64 *data)
1673 {
1674         struct ath_softc *sc = hw->priv;
1675         int i = 0;
1676
1677         data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_pkts_all +
1678                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_pkts_all +
1679                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_pkts_all +
1680                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_pkts_all);
1681         data[i++] = (sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BE)].tx_bytes_all +
1682                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_BK)].tx_bytes_all +
1683                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VI)].tx_bytes_all +
1684                      sc->debug.stats.txstats[PR_QNUM(IEEE80211_AC_VO)].tx_bytes_all);
1685         AWDATA_RX(rx_pkts_all);
1686         AWDATA_RX(rx_bytes_all);
1687
1688         AWDATA(tx_pkts_all);
1689         AWDATA(tx_bytes_all);
1690         AWDATA(queued);
1691         AWDATA(completed);
1692         AWDATA(xretries);
1693         AWDATA(a_aggr);
1694         AWDATA(a_queued_hw);
1695         AWDATA(a_queued_sw);
1696         AWDATA(a_completed);
1697         AWDATA(a_retries);
1698         AWDATA(a_xretries);
1699         AWDATA(fifo_underrun);
1700         AWDATA(xtxop);
1701         AWDATA(timer_exp);
1702         AWDATA(desc_cfg_err);
1703         AWDATA(data_underrun);
1704         AWDATA(delim_underrun);
1705
1706         AWDATA_RX(decrypt_crc_err);
1707         AWDATA_RX(phy_err);
1708         AWDATA_RX(mic_err);
1709         AWDATA_RX(pre_delim_crc_err);
1710         AWDATA_RX(post_delim_crc_err);
1711         AWDATA_RX(decrypt_busy_err);
1712
1713         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_RADAR]);
1714         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_OFDM_TIMING]);
1715         AWDATA_RX(phy_err_stats[ATH9K_PHYERR_CCK_TIMING]);
1716
1717         WARN_ON(i != ATH9K_SSTATS_LEN);
1718 }
1719
1720 int ath9k_init_debug(struct ath_hw *ah)
1721 {
1722         struct ath_common *common = ath9k_hw_common(ah);
1723         struct ath_softc *sc = (struct ath_softc *) common->priv;
1724
1725         sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
1726                                                    sc->hw->wiphy->debugfsdir);
1727         if (!sc->debug.debugfs_phy)
1728                 return -ENOMEM;
1729
1730 #ifdef CONFIG_ATH_DEBUG
1731         debugfs_create_file("debug", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1732                             sc, &fops_debug);
1733 #endif
1734
1735         ath9k_dfs_init_debug(sc);
1736
1737         debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
1738                             &fops_dma);
1739         debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc,
1740                             &fops_interrupt);
1741         debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc,
1742                             &fops_xmit);
1743         debugfs_create_file("queues", S_IRUSR, sc->debug.debugfs_phy, sc,
1744                             &fops_queues);
1745         debugfs_create_u32("qlen_bk", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1746                            &sc->tx.txq_max_pending[IEEE80211_AC_BK]);
1747         debugfs_create_u32("qlen_be", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1748                            &sc->tx.txq_max_pending[IEEE80211_AC_BE]);
1749         debugfs_create_u32("qlen_vi", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1750                            &sc->tx.txq_max_pending[IEEE80211_AC_VI]);
1751         debugfs_create_u32("qlen_vo", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1752                            &sc->tx.txq_max_pending[IEEE80211_AC_VO]);
1753         debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc,
1754                             &fops_misc);
1755         debugfs_create_file("reset", S_IRUSR, sc->debug.debugfs_phy, sc,
1756                             &fops_reset);
1757         debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc,
1758                             &fops_recv);
1759         debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
1760                             sc->debug.debugfs_phy, sc, &fops_rx_chainmask);
1761         debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
1762                             sc->debug.debugfs_phy, sc, &fops_tx_chainmask);
1763         debugfs_create_file("disable_ani", S_IRUSR | S_IWUSR,
1764                             sc->debug.debugfs_phy, sc, &fops_disable_ani);
1765         debugfs_create_bool("paprd", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1766                             &sc->sc_ah->config.enable_paprd);
1767         debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1768                             sc, &fops_regidx);
1769         debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1770                             sc, &fops_regval);
1771         debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
1772                             sc->debug.debugfs_phy,
1773                             &ah->config.cwm_ignore_extcca);
1774         debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc,
1775                             &fops_regdump);
1776         debugfs_create_file("dump_nfcal", S_IRUSR, sc->debug.debugfs_phy, sc,
1777                             &fops_dump_nfcal);
1778         debugfs_create_file("base_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
1779                             &fops_base_eeprom);
1780         debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
1781                             &fops_modal_eeprom);
1782 #ifdef CONFIG_ATH9K_MAC_DEBUG
1783         debugfs_create_file("samples", S_IRUSR, sc->debug.debugfs_phy, sc,
1784                             &fops_samps);
1785 #endif
1786         debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
1787                            sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
1788         debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
1789                            sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
1790         debugfs_create_file("diversity", S_IRUSR | S_IWUSR,
1791                             sc->debug.debugfs_phy, sc, &fops_ant_diversity);
1792 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1793         debugfs_create_file("btcoex", S_IRUSR, sc->debug.debugfs_phy, sc,
1794                             &fops_btcoex);
1795 #endif
1796         return 0;
1797 }