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 #define PR_QNUM(_n) sc->tx.txq_map[_n]->axq_qnum
 516 #define PR(str, elem)                                                   \
 517         do {                                                            \
 518                 len += snprintf(buf + len, size - len,                  \
 519                                 "%s%13u%11u%10u%10u\n", str,            \
 520                 sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].elem, \
 521                 sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].elem, \
 522                 sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].elem, \
 523                 sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].elem); \
 524                 if (len >= size)                          \
 525                         goto done;                        \
 526 } while(0)
 527
 528 #define PRX(str, elem)                                                  \
 529 do {                                                                    \
 530         len += snprintf(buf + len, size - len,                          \
 531                         "%s%13u%11u%10u%10u\n", str,                    \
 532                         (unsigned int)(sc->tx.txq_map[WME_AC_BE]->elem),        \
 533                         (unsigned int)(sc->tx.txq_map[WME_AC_BK]->elem),        \
 534                         (unsigned int)(sc->tx.txq_map[WME_AC_VI]->elem),        \
 535                         (unsigned int)(sc->tx.txq_map[WME_AC_VO]->elem));       \
 536         if (len >= size)                                                \
 537                 goto done;                                              \
 538 } while(0)
 539
 540 #define PRQLE(str, elem)                                                \
 541 do {                                                                    \
 542         len += snprintf(buf + len, size - len,                          \
 543                         "%s%13i%11i%10i%10i\n", str,                    \
 544                         list_empty(&sc->tx.txq_map[WME_AC_BE]->elem),   \
 545                         list_empty(&sc->tx.txq_map[WME_AC_BK]->elem),   \
 546                         list_empty(&sc->tx.txq_map[WME_AC_VI]->elem),   \
 547                         list_empty(&sc->tx.txq_map[WME_AC_VO]->elem));  \
 548         if (len >= size)                                                \
 549                 goto done;                                              \
 550 } while (0)
 551
 552 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
 553                               size_t count, loff_t *ppos)
 554 {
 555         struct ath_softc *sc = file->private_data;
 556         char *buf;
 557         unsigned int len = 0, size = 8000;
 558         int i;
 559         ssize_t retval = 0;
 560         char tmp[32];
 561
 562         buf = kzalloc(size, GFP_KERNEL);
 563         if (buf == NULL)
 564                 return -ENOMEM;
 565
 566         len += sprintf(buf, "Num-Tx-Queues: %i  tx-queues-setup: 0x%x"
 567                        " poll-work-seen: %u\n"
 568                        "%30s %10s%10s%10s\n\n",
 569                        ATH9K_NUM_TX_QUEUES, sc->tx.txqsetup,
 570                        sc->tx_complete_poll_work_seen,
 571                        "BE", "BK", "VI", "VO");
 572
 573         PR("MPDUs Queued:    ", queued);
 574         PR("MPDUs Completed: ", completed);
 575         PR("MPDUs XRetried:  ", xretries);
 576         PR("Aggregates:      ", a_aggr);
 577         PR("AMPDUs Queued HW:", a_queued_hw);
 578         PR("AMPDUs Queued SW:", a_queued_sw);
 579         PR("AMPDUs Completed:", a_completed);
 580         PR("AMPDUs Retried:  ", a_retries);
 581         PR("AMPDUs XRetried: ", a_xretries);
 582         PR("FIFO Underrun:   ", fifo_underrun);
 583         PR("TXOP Exceeded:   ", xtxop);
 584         PR("TXTIMER Expiry:  ", timer_exp);
 585         PR("DESC CFG Error:  ", desc_cfg_err);
 586         PR("DATA Underrun:   ", data_underrun);
 587         PR("DELIM Underrun:  ", delim_underrun);
 588         PR("TX-Pkts-All:     ", tx_pkts_all);
 589         PR("TX-Bytes-All:    ", tx_bytes_all);
 590         PR("hw-put-tx-buf:   ", puttxbuf);
 591         PR("hw-tx-start:     ", txstart);
 592         PR("hw-tx-proc-desc: ", txprocdesc);
 593         PR("TX-Failed:       ", txfailed);
 594         len += snprintf(buf + len, size - len,
 595                         "%s%11p%11p%10p%10p\n", "txq-memory-address:",
 596                         sc->tx.txq_map[WME_AC_BE],
 597                         sc->tx.txq_map[WME_AC_BK],
 598                         sc->tx.txq_map[WME_AC_VI],
 599                         sc->tx.txq_map[WME_AC_VO]);
 600         if (len >= size)
 601                 goto done;
 602
 603         PRX("axq-qnum:        ", axq_qnum);
 604         PRX("axq-depth:       ", axq_depth);
 605         PRX("axq-ampdu_depth: ", axq_ampdu_depth);
 606         PRX("axq-stopped      ", stopped);
 607         PRX("tx-in-progress   ", axq_tx_inprogress);
 608         PRX("pending-frames   ", pending_frames);
 609         PRX("txq_headidx:     ", txq_headidx);
 610         PRX("txq_tailidx:     ", txq_headidx);
 611
 612         PRQLE("axq_q empty:       ", axq_q);
 613         PRQLE("axq_acq empty:     ", axq_acq);
 614         for (i = 0; i < ATH_TXFIFO_DEPTH; i++) {
 615                 snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i);
 616                 PRQLE(tmp, txq_fifo[i]);
 617         }
 618
 619         /* Print out more detailed queue-info */
 620         for (i = 0; i <= WME_AC_BK; i++) {
 621                 struct ath_txq *txq = &(sc->tx.txq[i]);
 622                 struct ath_atx_ac *ac;
 623                 struct ath_atx_tid *tid;
 624                 if (len >= size)
 625                         goto done;
 626                 spin_lock_bh(&txq->axq_lock);
 627                 if (!list_empty(&txq->axq_acq)) {
 628                         ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac,
 629                                               list);
 630                         len += snprintf(buf + len, size - len,
 631                                         "txq[%i] first-ac: %p sched: %i\n",
 632                                         i, ac, ac->sched);
 633                         if (list_empty(&ac->tid_q) || (len >= size))
 634                                 goto done_for;
 635                         tid = list_first_entry(&ac->tid_q, struct ath_atx_tid,
 636                                                list);
 637                         len += snprintf(buf + len, size - len,
 638                                         " first-tid: %p sched: %i paused: %i\n",
 639                                         tid, tid->sched, tid->paused);
 640                 }
 641         done_for:
 642                 spin_unlock_bh(&txq->axq_lock);
 643         }
 644
 645 done:
 646         if (len > size)
 647                 len = size;
 648
 649         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 650         kfree(buf);
 651
 652         return retval;
 653 }
 654
 655 static ssize_t read_file_stations(struct file *file, char __user *user_buf,
 656                                   size_t count, loff_t *ppos)
 657 {
 658         struct ath_softc *sc = file->private_data;
 659         char *buf;
 660         unsigned int len = 0, size = 64000;
 661         struct ath_node *an = NULL;
 662         ssize_t retval = 0;
 663         int q;
 664
 665         buf = kzalloc(size, GFP_KERNEL);
 666         if (buf == NULL)
 667                 return -ENOMEM;
 668
 669         len += snprintf(buf + len, size - len,
 670                         "Stations:\n"
 671                         " tid: addr sched paused buf_q-empty an ac baw\n"
 672                         " ac: addr sched tid_q-empty txq\n");
 673
 674         spin_lock(&sc->nodes_lock);
 675         list_for_each_entry(an, &sc->nodes, list) {
 676                 unsigned short ma = an->maxampdu;
 677                 if (ma == 0)
 678                         ma = 65535; /* see ath_lookup_rate */
 679                 len += snprintf(buf + len, size - len,
 680                                 "iface: %pM  sta: %pM max-ampdu: %hu mpdu-density: %uus\n",
 681                                 an->vif->addr, an->sta->addr, ma,
 682                                 (unsigned int)(an->mpdudensity));
 683                 if (len >= size)
 684                         goto done;
 685
 686                 for (q = 0; q < WME_NUM_TID; q++) {
 687                         struct ath_atx_tid *tid = &(an->tid[q]);
 688                         len += snprintf(buf + len, size - len,
 689                                         " tid: %p %s %s %i %p %p %hu\n",
 690                                         tid, tid->sched ? "sched" : "idle",
 691                                         tid->paused ? "paused" : "running",
 692                                         skb_queue_empty(&tid->buf_q),
 693                                         tid->an, tid->ac, tid->baw_size);
 694                         if (len >= size)
 695                                 goto done;
 696                 }
 697
 698                 for (q = 0; q < WME_NUM_AC; q++) {
 699                         struct ath_atx_ac *ac = &(an->ac[q]);
 700                         len += snprintf(buf + len, size - len,
 701                                         " ac: %p %s %i %p\n",
 702                                         ac, ac->sched ? "sched" : "idle",
 703                                         list_empty(&ac->tid_q), ac->txq);
 704                         if (len >= size)
 705                                 goto done;
 706                 }
 707         }
 708
 709 done:
 710         spin_unlock(&sc->nodes_lock);
 711         if (len > size)
 712                 len = size;
 713
 714         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 715         kfree(buf);
 716
 717         return retval;
 718 }
 719
 720 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
 721                               size_t count, loff_t *ppos)
 722 {
 723         struct ath_softc *sc = file->private_data;
 724         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 725         struct ieee80211_hw *hw = sc->hw;
 726         struct ath9k_vif_iter_data iter_data;
 727         char buf[512];
 728         unsigned int len = 0;
 729         ssize_t retval = 0;
 730         unsigned int reg;
 731         u32 rxfilter;
 732
 733         len += snprintf(buf + len, sizeof(buf) - len,
 734                         "BSSID: %pM\n", common->curbssid);
 735         len += snprintf(buf + len, sizeof(buf) - len,
 736                         "BSSID-MASK: %pM\n", common->bssidmask);
 737         len += snprintf(buf + len, sizeof(buf) - len,
 738                         "OPMODE: %s\n", ath_opmode_to_string(sc->sc_ah->opmode));
 739
 740         ath9k_ps_wakeup(sc);
 741         rxfilter = ath9k_hw_getrxfilter(sc->sc_ah);
 742         ath9k_ps_restore(sc);
 743
 744         len += snprintf(buf + len, sizeof(buf) - len,
 745                         "RXFILTER: 0x%x", rxfilter);
 746
 747         if (rxfilter & ATH9K_RX_FILTER_UCAST)
 748                 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
 749         if (rxfilter & ATH9K_RX_FILTER_MCAST)
 750                 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
 751         if (rxfilter & ATH9K_RX_FILTER_BCAST)
 752                 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
 753         if (rxfilter & ATH9K_RX_FILTER_CONTROL)
 754                 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
 755         if (rxfilter & ATH9K_RX_FILTER_BEACON)
 756                 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
 757         if (rxfilter & ATH9K_RX_FILTER_PROM)
 758                 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
 759         if (rxfilter & ATH9K_RX_FILTER_PROBEREQ)
 760                 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
 761         if (rxfilter & ATH9K_RX_FILTER_PHYERR)
 762                 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR");
 763         if (rxfilter & ATH9K_RX_FILTER_MYBEACON)
 764                 len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON");
 765         if (rxfilter & ATH9K_RX_FILTER_COMP_BAR)
 766                 len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
 767         if (rxfilter & ATH9K_RX_FILTER_PSPOLL)
 768                 len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL");
 769         if (rxfilter & ATH9K_RX_FILTER_PHYRADAR)
 770                 len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
 771         if (rxfilter & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
 772                 len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL");
 773         if (rxfilter & ATH9K_RX_FILTER_CONTROL_WRAPPER)
 774                 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL_WRAPPER");
 775
 776         len += snprintf(buf + len, sizeof(buf) - len, "\n");
 777
 778         reg = sc->sc_ah->imask;
 779
 780         len += snprintf(buf + len, sizeof(buf) - len, "INTERRUPT-MASK: 0x%x", reg);
 781
 782         if (reg & ATH9K_INT_SWBA)
 783                 len += snprintf(buf + len, sizeof(buf) - len, " SWBA");
 784         if (reg & ATH9K_INT_BMISS)
 785                 len += snprintf(buf + len, sizeof(buf) - len, " BMISS");
 786         if (reg & ATH9K_INT_CST)
 787                 len += snprintf(buf + len, sizeof(buf) - len, " CST");
 788         if (reg & ATH9K_INT_RX)
 789                 len += snprintf(buf + len, sizeof(buf) - len, " RX");
 790         if (reg & ATH9K_INT_RXHP)
 791                 len += snprintf(buf + len, sizeof(buf) - len, " RXHP");
 792         if (reg & ATH9K_INT_RXLP)
 793                 len += snprintf(buf + len, sizeof(buf) - len, " RXLP");
 794         if (reg & ATH9K_INT_BB_WATCHDOG)
 795                 len += snprintf(buf + len, sizeof(buf) - len, " BB_WATCHDOG");
 796
 797         len += snprintf(buf + len, sizeof(buf) - len, "\n");
 798
 799         ath9k_calculate_iter_data(hw, NULL, &iter_data);
 800
 801         len += snprintf(buf + len, sizeof(buf) - len,
 802                         "VIF-COUNTS: AP: %i STA: %i MESH: %i WDS: %i"
 803                         " ADHOC: %i TOTAL: %hi BEACON-VIF: %hi\n",
 804                         iter_data.naps, iter_data.nstations, iter_data.nmeshes,
 805                         iter_data.nwds, iter_data.nadhocs,
 806                         sc->nvifs, sc->nbcnvifs);
 807
 808         if (len > sizeof(buf))
 809                 len = sizeof(buf);
 810
 811         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 812         return retval;
 813 }
 814
 815 static ssize_t read_file_reset(struct file *file, char __user *user_buf,
 816                                size_t count, loff_t *ppos)
 817 {
 818         struct ath_softc *sc = file->private_data;
 819         char buf[512];
 820         unsigned int len = 0;
 821
 822         len += snprintf(buf + len, sizeof(buf) - len,
 823                         "%17s: %2d\n", "Baseband Hang",
 824                         sc->debug.stats.reset[RESET_TYPE_BB_HANG]);
 825         len += snprintf(buf + len, sizeof(buf) - len,
 826                         "%17s: %2d\n", "Baseband Watchdog",
 827                         sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG]);
 828         len += snprintf(buf + len, sizeof(buf) - len,
 829                         "%17s: %2d\n", "Fatal HW Error",
 830                         sc->debug.stats.reset[RESET_TYPE_FATAL_INT]);
 831         len += snprintf(buf + len, sizeof(buf) - len,
 832                         "%17s: %2d\n", "TX HW error",
 833                         sc->debug.stats.reset[RESET_TYPE_TX_ERROR]);
 834         len += snprintf(buf + len, sizeof(buf) - len,
 835                         "%17s: %2d\n", "TX Path Hang",
 836                         sc->debug.stats.reset[RESET_TYPE_TX_HANG]);
 837         len += snprintf(buf + len, sizeof(buf) - len,
 838                         "%17s: %2d\n", "PLL RX Hang",
 839                         sc->debug.stats.reset[RESET_TYPE_PLL_HANG]);
 840
 841         if (len > sizeof(buf))
 842                 len = sizeof(buf);
 843
 844         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 845 }
 846
 847 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 848                        struct ath_tx_status *ts, struct ath_txq *txq,
 849                        unsigned int flags)
 850 {
 851 #define TX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].ts\
 852                         [sc->debug.tsidx].c)
 853         int qnum = txq->axq_qnum;
 854
 855         TX_STAT_INC(qnum, tx_pkts_all);
 856         sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
 857
 858         if (bf_isampdu(bf)) {
 859                 if (flags & ATH_TX_ERROR)
 860                         TX_STAT_INC(qnum, a_xretries);
 861                 else
 862                         TX_STAT_INC(qnum, a_completed);
 863         } else {
 864                 if (ts->ts_status & ATH9K_TXERR_XRETRY)
 865                         TX_STAT_INC(qnum, xretries);
 866                 else
 867                         TX_STAT_INC(qnum, completed);
 868         }
 869
 870         if (ts->ts_status & ATH9K_TXERR_FIFO)
 871                 TX_STAT_INC(qnum, fifo_underrun);
 872         if (ts->ts_status & ATH9K_TXERR_XTXOP)
 873                 TX_STAT_INC(qnum, xtxop);
 874         if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
 875                 TX_STAT_INC(qnum, timer_exp);
 876         if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
 877                 TX_STAT_INC(qnum, desc_cfg_err);
 878         if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
 879                 TX_STAT_INC(qnum, data_underrun);
 880         if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
 881                 TX_STAT_INC(qnum, delim_underrun);
 882
 883 #ifdef CONFIG_ATH9K_MAC_DEBUG
 884         spin_lock(&sc->debug.samp_lock);
 885         TX_SAMP_DBG(jiffies) = jiffies;
 886         TX_SAMP_DBG(rssi_ctl0) = ts->ts_rssi_ctl0;
 887         TX_SAMP_DBG(rssi_ctl1) = ts->ts_rssi_ctl1;
 888         TX_SAMP_DBG(rssi_ctl2) = ts->ts_rssi_ctl2;
 889         TX_SAMP_DBG(rssi_ext0) = ts->ts_rssi_ext0;
 890         TX_SAMP_DBG(rssi_ext1) = ts->ts_rssi_ext1;
 891         TX_SAMP_DBG(rssi_ext2) = ts->ts_rssi_ext2;
 892         TX_SAMP_DBG(rateindex) = ts->ts_rateindex;
 893         TX_SAMP_DBG(isok) = !!(ts->ts_status & ATH9K_TXERR_MASK);
 894         TX_SAMP_DBG(rts_fail_cnt) = ts->ts_shortretry;
 895         TX_SAMP_DBG(data_fail_cnt) = ts->ts_longretry;
 896         TX_SAMP_DBG(rssi) = ts->ts_rssi;
 897         TX_SAMP_DBG(tid) = ts->tid;
 898         TX_SAMP_DBG(qid) = ts->qid;
 899
 900         if (ts->ts_flags & ATH9K_TX_BA) {
 901                 TX_SAMP_DBG(ba_low) = ts->ba_low;
 902                 TX_SAMP_DBG(ba_high) = ts->ba_high;
 903         } else {
 904                 TX_SAMP_DBG(ba_low) = 0;
 905                 TX_SAMP_DBG(ba_high) = 0;
 906         }
 907
 908         sc->debug.tsidx = (sc->debug.tsidx + 1) % ATH_DBG_MAX_SAMPLES;
 909         spin_unlock(&sc->debug.samp_lock);
 910 #endif
 911
 912 #undef TX_SAMP_DBG
 913 }
 914
 915 static const struct file_operations fops_xmit = {
 916         .read = read_file_xmit,
 917         .open = simple_open,
 918         .owner = THIS_MODULE,
 919         .llseek = default_llseek,
 920 };
 921
 922 static const struct file_operations fops_stations = {
 923         .read = read_file_stations,
 924         .open = simple_open,
 925         .owner = THIS_MODULE,
 926         .llseek = default_llseek,
 927 };
 928
 929 static const struct file_operations fops_misc = {
 930         .read = read_file_misc,
 931         .open = simple_open,
 932         .owner = THIS_MODULE,
 933         .llseek = default_llseek,
 934 };
 935
 936 static const struct file_operations fops_reset = {
 937         .read = read_file_reset,
 938         .open = simple_open,
 939         .owner = THIS_MODULE,
 940         .llseek = default_llseek,
 941 };
 942
 943 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 944                               size_t count, loff_t *ppos)
 945 {
 946 #define PHY_ERR(s, p) \
 947         len += snprintf(buf + len, size - len, "%22s : %10u\n", s, \
 948                         sc->debug.stats.rxstats.phy_err_stats[p]);
 949
 950 #define RXS_ERR(s, e)                                       \
 951         do {                                                \
 952                 len += snprintf(buf + len, size - len,      \
 953                                 "%22s : %10u\n", s,         \
 954                                 sc->debug.stats.rxstats.e); \
 955         } while (0)
 956
 957         struct ath_softc *sc = file->private_data;
 958         char *buf;
 959         unsigned int len = 0, size = 1600;
 960         ssize_t retval = 0;
 961
 962         buf = kzalloc(size, GFP_KERNEL);
 963         if (buf == NULL)
 964                 return -ENOMEM;
 965
 966         RXS_ERR("CRC ERR", crc_err);
 967         RXS_ERR("DECRYPT CRC ERR", decrypt_crc_err);
 968         RXS_ERR("PHY ERR", phy_err);
 969         RXS_ERR("MIC ERR", mic_err);
 970         RXS_ERR("PRE-DELIM CRC ERR", pre_delim_crc_err);
 971         RXS_ERR("POST-DELIM CRC ERR", post_delim_crc_err);
 972         RXS_ERR("DECRYPT BUSY ERR", decrypt_busy_err);
 973         RXS_ERR("RX-LENGTH-ERR", rx_len_err);
 974         RXS_ERR("RX-OOM-ERR", rx_oom_err);
 975         RXS_ERR("RX-RATE-ERR", rx_rate_err);
 976         RXS_ERR("RX-DROP-RXFLUSH", rx_drop_rxflush);
 977         RXS_ERR("RX-TOO-MANY-FRAGS", rx_too_many_frags_err);
 978
 979         PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN);
 980         PHY_ERR("TIMING ERR", ATH9K_PHYERR_TIMING);
 981         PHY_ERR("PARITY ERR", ATH9K_PHYERR_PARITY);
 982         PHY_ERR("RATE ERR", ATH9K_PHYERR_RATE);
 983         PHY_ERR("LENGTH ERR", ATH9K_PHYERR_LENGTH);
 984         PHY_ERR("RADAR ERR", ATH9K_PHYERR_RADAR);
 985         PHY_ERR("SERVICE ERR", ATH9K_PHYERR_SERVICE);
 986         PHY_ERR("TOR ERR", ATH9K_PHYERR_TOR);
 987         PHY_ERR("OFDM-TIMING ERR", ATH9K_PHYERR_OFDM_TIMING);
 988         PHY_ERR("OFDM-SIGNAL-PARITY ERR", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
 989         PHY_ERR("OFDM-RATE ERR", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
 990         PHY_ERR("OFDM-LENGTH ERR", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
 991         PHY_ERR("OFDM-POWER-DROP ERR", ATH9K_PHYERR_OFDM_POWER_DROP);
 992         PHY_ERR("OFDM-SERVICE ERR", ATH9K_PHYERR_OFDM_SERVICE);
 993         PHY_ERR("OFDM-RESTART ERR", ATH9K_PHYERR_OFDM_RESTART);
 994         PHY_ERR("FALSE-RADAR-EXT ERR", ATH9K_PHYERR_FALSE_RADAR_EXT);
 995         PHY_ERR("CCK-TIMING ERR", ATH9K_PHYERR_CCK_TIMING);
 996         PHY_ERR("CCK-HEADER-CRC ERR", ATH9K_PHYERR_CCK_HEADER_CRC);
 997         PHY_ERR("CCK-RATE ERR", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
 998         PHY_ERR("CCK-SERVICE ERR", ATH9K_PHYERR_CCK_SERVICE);
 999         PHY_ERR("CCK-RESTART ERR", ATH9K_PHYERR_CCK_RESTART);
1000         PHY_ERR("CCK-LENGTH ERR", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
1001         PHY_ERR("CCK-POWER-DROP ERR", ATH9K_PHYERR_CCK_POWER_DROP);
1002         PHY_ERR("HT-CRC ERR", ATH9K_PHYERR_HT_CRC_ERROR);
1003         PHY_ERR("HT-LENGTH ERR", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
1004         PHY_ERR("HT-RATE ERR", ATH9K_PHYERR_HT_RATE_ILLEGAL);
1005
1006         RXS_ERR("RX-Pkts-All", rx_pkts_all);
1007         RXS_ERR("RX-Bytes-All", rx_bytes_all);
1008         RXS_ERR("RX-Beacons", rx_beacons);
1009         RXS_ERR("RX-Frags", rx_frags);
1010
1011         if (len > size)
1012                 len = size;
1013
1014         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1015         kfree(buf);
1016
1017         return retval;
1018
1019 #undef RXS_ERR
1020 #undef PHY_ERR
1021 }
1022
1023 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
1024 {
1025 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
1026 #define RX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].rs\
1027                         [sc->debug.rsidx].c)
1028
1029         RX_STAT_INC(rx_pkts_all);
1030         sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen;
1031
1032         if (rs->rs_status & ATH9K_RXERR_CRC)
1033                 RX_STAT_INC(crc_err);
1034         if (rs->rs_status & ATH9K_RXERR_DECRYPT)
1035                 RX_STAT_INC(decrypt_crc_err);
1036         if (rs->rs_status & ATH9K_RXERR_MIC)
1037                 RX_STAT_INC(mic_err);
1038         if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
1039                 RX_STAT_INC(pre_delim_crc_err);
1040         if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
1041                 RX_STAT_INC(post_delim_crc_err);
1042         if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
1043                 RX_STAT_INC(decrypt_busy_err);
1044
1045         if (rs->rs_status & ATH9K_RXERR_PHY) {
1046                 RX_STAT_INC(phy_err);
1047                 if (rs->rs_phyerr < ATH9K_PHYERR_MAX)
1048                         RX_PHY_ERR_INC(rs->rs_phyerr);
1049         }
1050
1051 #ifdef CONFIG_ATH9K_MAC_DEBUG
1052         spin_lock(&sc->debug.samp_lock);
1053         RX_SAMP_DBG(jiffies) = jiffies;
1054         RX_SAMP_DBG(rssi_ctl0) = rs->rs_rssi_ctl0;
1055         RX_SAMP_DBG(rssi_ctl1) = rs->rs_rssi_ctl1;
1056         RX_SAMP_DBG(rssi_ctl2) = rs->rs_rssi_ctl2;
1057         RX_SAMP_DBG(rssi_ext0) = rs->rs_rssi_ext0;
1058         RX_SAMP_DBG(rssi_ext1) = rs->rs_rssi_ext1;
1059         RX_SAMP_DBG(rssi_ext2) = rs->rs_rssi_ext2;
1060         RX_SAMP_DBG(antenna) = rs->rs_antenna;
1061         RX_SAMP_DBG(rssi) = rs->rs_rssi;
1062         RX_SAMP_DBG(rate) = rs->rs_rate;
1063         RX_SAMP_DBG(is_mybeacon) = rs->is_mybeacon;
1064
1065         sc->debug.rsidx = (sc->debug.rsidx + 1) % ATH_DBG_MAX_SAMPLES;
1066         spin_unlock(&sc->debug.samp_lock);
1067
1068 #endif
1069
1070 #undef RX_PHY_ERR_INC
1071 #undef RX_SAMP_DBG
1072 }
1073
1074 static const struct file_operations fops_recv = {
1075         .read = read_file_recv,
1076         .open = simple_open,
1077         .owner = THIS_MODULE,
1078         .llseek = default_llseek,
1079 };
1080
1081 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
1082                                 size_t count, loff_t *ppos)
1083 {
1084         struct ath_softc *sc = file->private_data;
1085         char buf[32];
1086         unsigned int len;
1087
1088         len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
1089         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1090 }
1091
1092 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
1093                              size_t count, loff_t *ppos)
1094 {
1095         struct ath_softc *sc = file->private_data;
1096         unsigned long regidx;
1097         char buf[32];
1098         ssize_t len;
1099
1100         len = min(count, sizeof(buf) - 1);
1101         if (copy_from_user(buf, user_buf, len))
1102                 return -EFAULT;
1103
1104         buf[len] = '\0';
1105         if (strict_strtoul(buf, 0, &regidx))
1106                 return -EINVAL;
1107
1108         sc->debug.regidx = regidx;
1109         return count;
1110 }
1111
1112 static const struct file_operations fops_regidx = {
1113         .read = read_file_regidx,
1114         .write = write_file_regidx,
1115         .open = simple_open,
1116         .owner = THIS_MODULE,
1117         .llseek = default_llseek,
1118 };
1119
1120 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
1121                              size_t count, loff_t *ppos)
1122 {
1123         struct ath_softc *sc = file->private_data;
1124         struct ath_hw *ah = sc->sc_ah;
1125         char buf[32];
1126         unsigned int len;
1127         u32 regval;
1128
1129         ath9k_ps_wakeup(sc);
1130         regval = REG_READ_D(ah, sc->debug.regidx);
1131         ath9k_ps_restore(sc);
1132         len = sprintf(buf, "0x%08x\n", regval);
1133         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1134 }
1135
1136 static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
1137                              size_t count, loff_t *ppos)
1138 {
1139         struct ath_softc *sc = file->private_data;
1140         struct ath_hw *ah = sc->sc_ah;
1141         unsigned long regval;
1142         char buf[32];
1143         ssize_t len;
1144
1145         len = min(count, sizeof(buf) - 1);
1146         if (copy_from_user(buf, user_buf, len))
1147                 return -EFAULT;
1148
1149         buf[len] = '\0';
1150         if (strict_strtoul(buf, 0, &regval))
1151                 return -EINVAL;
1152
1153         ath9k_ps_wakeup(sc);
1154         REG_WRITE_D(ah, sc->debug.regidx, regval);
1155         ath9k_ps_restore(sc);
1156         return count;
1157 }
1158
1159 static const struct file_operations fops_regval = {
1160         .read = read_file_regval,
1161         .write = write_file_regval,
1162         .open = simple_open,
1163         .owner = THIS_MODULE,
1164         .llseek = default_llseek,
1165 };
1166
1167 #define REGDUMP_LINE_SIZE       20
1168
1169 static int open_file_regdump(struct inode *inode, struct file *file)
1170 {
1171         struct ath_softc *sc = inode->i_private;
1172         unsigned int len = 0;
1173         u8 *buf;
1174         int i;
1175         unsigned long num_regs, regdump_len, max_reg_offset;
1176
1177         max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x16bd4 : 0xb500;
1178         num_regs = max_reg_offset / 4 + 1;
1179         regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
1180         buf = vmalloc(regdump_len);
1181         if (!buf)
1182                 return -ENOMEM;
1183
1184         ath9k_ps_wakeup(sc);
1185         for (i = 0; i < num_regs; i++)
1186                 len += scnprintf(buf + len, regdump_len - len,
1187                         "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
1188         ath9k_ps_restore(sc);
1189
1190         file->private_data = buf;
1191
1192         return 0;
1193 }
1194
1195 static const struct file_operations fops_regdump = {
1196         .open = open_file_regdump,
1197         .read = ath9k_debugfs_read_buf,
1198         .release = ath9k_debugfs_release_buf,
1199         .owner = THIS_MODULE,
1200         .llseek = default_llseek,/* read accesses f_pos */
1201 };
1202
1203 static ssize_t read_file_dump_nfcal(struct file *file, char __user *user_buf,
1204                                     size_t count, loff_t *ppos)
1205 {
1206         struct ath_softc *sc = file->private_data;
1207         struct ath_hw *ah = sc->sc_ah;
1208         struct ath9k_nfcal_hist *h = sc->caldata.nfCalHist;
1209         struct ath_common *common = ath9k_hw_common(ah);
1210         struct ieee80211_conf *conf = &common->hw->conf;
1211         u32 len = 0, size = 1500;
1212         u32 i, j;
1213         ssize_t retval = 0;
1214         char *buf;
1215         u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
1216         u8 nread;
1217
1218         buf = kzalloc(size, GFP_KERNEL);
1219         if (!buf)
1220                 return -ENOMEM;
1221
1222         len += snprintf(buf + len, size - len,
1223                         "Channel Noise Floor : %d\n", ah->noise);
1224         len += snprintf(buf + len, size - len,
1225                         "Chain | privNF | # Readings | NF Readings\n");
1226         for (i = 0; i < NUM_NF_READINGS; i++) {
1227                 if (!(chainmask & (1 << i)) ||
1228                     ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
1229                         continue;
1230
1231                 nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount;
1232                 len += snprintf(buf + len, size - len, " %d\t %d\t %d\t\t",
1233                                 i, h[i].privNF, nread);
1234                 for (j = 0; j < nread; j++)
1235                         len += snprintf(buf + len, size - len,
1236                                         " %d", h[i].nfCalBuffer[j]);
1237                 len += snprintf(buf + len, size - len, "\n");
1238         }
1239
1240         if (len > size)
1241                 len = size;
1242
1243         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1244         kfree(buf);
1245
1246         return retval;
1247 }
1248
1249 static const struct file_operations fops_dump_nfcal = {
1250         .read = read_file_dump_nfcal,
1251         .open = simple_open,
1252         .owner = THIS_MODULE,
1253         .llseek = default_llseek,
1254 };
1255
1256 static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
1257                                      size_t count, loff_t *ppos)
1258 {
1259         struct ath_softc *sc = file->private_data;
1260         struct ath_hw *ah = sc->sc_ah;
1261         u32 len = 0, size = 1500;
1262         ssize_t retval = 0;
1263         char *buf;
1264
1265         buf = kzalloc(size, GFP_KERNEL);
1266         if (!buf)
1267                 return -ENOMEM;
1268
1269         len = ah->eep_ops->dump_eeprom(ah, true, buf, len, size);
1270
1271         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1272         kfree(buf);
1273
1274         return retval;
1275 }
1276
1277 static const struct file_operations fops_base_eeprom = {
1278         .read = read_file_base_eeprom,
1279         .open = simple_open,
1280         .owner = THIS_MODULE,
1281         .llseek = default_llseek,
1282 };
1283
1284 static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf,
1285                                       size_t count, loff_t *ppos)
1286 {
1287         struct ath_softc *sc = file->private_data;
1288         struct ath_hw *ah = sc->sc_ah;
1289         u32 len = 0, size = 6000;
1290         char *buf;
1291         size_t retval;
1292
1293         buf = kzalloc(size, GFP_KERNEL);
1294         if (buf == NULL)
1295                 return -ENOMEM;
1296
1297         len = ah->eep_ops->dump_eeprom(ah, false, buf, len, size);
1298
1299         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1300         kfree(buf);
1301
1302         return retval;
1303 }
1304
1305 static const struct file_operations fops_modal_eeprom = {
1306         .read = read_file_modal_eeprom,
1307         .open = simple_open,
1308         .owner = THIS_MODULE,
1309         .llseek = default_llseek,
1310 };
1311
1312 #ifdef CONFIG_ATH9K_MAC_DEBUG
1313
1314 void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
1315 {
1316 #define ATH_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].c)
1317         struct ath_hw *ah = sc->sc_ah;
1318         struct ath_common *common = ath9k_hw_common(ah);
1319         unsigned long flags;
1320         int i;
1321
1322         ath9k_ps_wakeup(sc);
1323
1324         spin_lock_bh(&sc->debug.samp_lock);
1325
1326         spin_lock_irqsave(&common->cc_lock, flags);
1327         ath_hw_cycle_counters_update(common);
1328
1329         ATH_SAMP_DBG(cc.cycles) = common->cc_ani.cycles;
1330         ATH_SAMP_DBG(cc.rx_busy) = common->cc_ani.rx_busy;
1331         ATH_SAMP_DBG(cc.rx_frame) = common->cc_ani.rx_frame;
1332         ATH_SAMP_DBG(cc.tx_frame) = common->cc_ani.tx_frame;
1333         spin_unlock_irqrestore(&common->cc_lock, flags);
1334
1335         ATH_SAMP_DBG(noise) = ah->noise;
1336
1337         REG_WRITE_D(ah, AR_MACMISC,
1338                   ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
1339                    (AR_MACMISC_MISC_OBS_BUS_1 <<
1340                     AR_MACMISC_MISC_OBS_BUS_MSB_S)));
1341
1342         for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
1343                 ATH_SAMP_DBG(dma_dbg_reg_vals[i]) = REG_READ_D(ah,
1344                                 AR_DMADBG_0 + (i * sizeof(u32)));
1345
1346         ATH_SAMP_DBG(pcu_obs) = REG_READ_D(ah, AR_OBS_BUS_1);
1347         ATH_SAMP_DBG(pcu_cr) = REG_READ_D(ah, AR_CR);
1348
1349         memcpy(ATH_SAMP_DBG(nfCalHist), sc->caldata.nfCalHist,
1350                         sizeof(ATH_SAMP_DBG(nfCalHist)));
1351
1352         sc->debug.sampidx = (sc->debug.sampidx + 1) % ATH_DBG_MAX_SAMPLES;
1353         spin_unlock_bh(&sc->debug.samp_lock);
1354         ath9k_ps_restore(sc);
1355
1356 #undef ATH_SAMP_DBG
1357 }
1358
1359 static int open_file_bb_mac_samps(struct inode *inode, struct file *file)
1360 {
1361 #define ATH_SAMP_DBG(c) bb_mac_samp[sampidx].c
1362         struct ath_softc *sc = inode->i_private;
1363         struct ath_hw *ah = sc->sc_ah;
1364         struct ath_common *common = ath9k_hw_common(ah);
1365         struct ieee80211_conf *conf = &common->hw->conf;
1366         struct ath_dbg_bb_mac_samp *bb_mac_samp;
1367         struct ath9k_nfcal_hist *h;
1368         int i, j, qcuOffset = 0, dcuOffset = 0;
1369         u32 *qcuBase, *dcuBase, size = 30000, len = 0;
1370         u32 sampidx = 0;
1371         u8 *buf;
1372         u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
1373         u8 nread;
1374
1375         if (test_bit(SC_OP_INVALID, &sc->sc_flags))
1376                 return -EAGAIN;
1377
1378         buf = vmalloc(size);
1379         if (!buf)
1380                 return -ENOMEM;
1381         bb_mac_samp = vmalloc(sizeof(*bb_mac_samp) * ATH_DBG_MAX_SAMPLES);
1382         if (!bb_mac_samp) {
1383                 vfree(buf);
1384                 return -ENOMEM;
1385         }
1386         /* Account the current state too */
1387         ath9k_debug_samp_bb_mac(sc);
1388
1389         spin_lock_bh(&sc->debug.samp_lock);
1390         memcpy(bb_mac_samp, sc->debug.bb_mac_samp,
1391                         sizeof(*bb_mac_samp) * ATH_DBG_MAX_SAMPLES);
1392         len += snprintf(buf + len, size - len,
1393                         "Current Sample Index: %d\n", sc->debug.sampidx);
1394         spin_unlock_bh(&sc->debug.samp_lock);
1395
1396         len += snprintf(buf + len, size - len,
1397                         "Raw DMA Debug Dump:\n");
1398         len += snprintf(buf + len, size - len, "Sample |\t");
1399         for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
1400                 len += snprintf(buf + len, size - len, " DMA Reg%d |\t", i);
1401         len += snprintf(buf + len, size - len, "\n");
1402
1403         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1404                 len += snprintf(buf + len, size - len, "%d\t", sampidx);
1405
1406                 for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
1407                         len += snprintf(buf + len, size - len, " %08x\t",
1408                                         ATH_SAMP_DBG(dma_dbg_reg_vals[i]));
1409                 len += snprintf(buf + len, size - len, "\n");
1410         }
1411         len += snprintf(buf + len, size - len, "\n");
1412
1413         len += snprintf(buf + len, size - len,
1414                         "Sample Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
1415         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1416                 qcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[0]);
1417                 dcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[4]);
1418
1419                 for (i = 0; i < ATH9K_NUM_QUEUES; i++,
1420                                 qcuOffset += 4, dcuOffset += 5) {
1421                         if (i == 8) {
1422                                 qcuOffset = 0;
1423                                 qcuBase++;
1424                         }
1425
1426                         if (i == 6) {
1427                                 dcuOffset = 0;
1428                                 dcuBase++;
1429                         }
1430                         if (!sc->debug.stats.txstats[i].queued)
1431                                 continue;
1432
1433                         len += snprintf(buf + len, size - len,
1434                                 "%4d %7d    %2x      %1x     %2x         %2x\n",
1435                                 sampidx, i,
1436                                 (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
1437                                 (*qcuBase & (0x8 << qcuOffset)) >>
1438                                 (qcuOffset + 3),
1439                                 ATH_SAMP_DBG(dma_dbg_reg_vals[2]) &
1440                                 (0x7 << (i * 3)) >> (i * 3),
1441                                 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
1442                 }
1443                 len += snprintf(buf + len, size - len, "\n");
1444         }
1445         len += snprintf(buf + len, size - len,
1446                         "samp qcu_sh qcu_fh qcu_comp dcu_comp dcu_arb dcu_fp "
1447                         "ch_idle_dur ch_idle_dur_val txfifo_val0 txfifo_val1 "
1448                         "txfifo_dcu0 txfifo_dcu1 pcu_obs AR_CR\n");
1449
1450         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1451                 qcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[0]);
1452                 dcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[4]);
1453
1454                 len += snprintf(buf + len, size - len, "%4d %5x %5x ", sampidx,
1455                         (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x003c0000) >> 18,
1456                         (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x03c00000) >> 22);
1457                 len += snprintf(buf + len, size - len, "%7x %8x ",
1458                         (ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x1c000000) >> 26,
1459                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x3));
1460                 len += snprintf(buf + len, size - len, "%7x %7x ",
1461                         (ATH_SAMP_DBG(dma_dbg_reg_vals[5]) & 0x06000000) >> 25,
1462                         (ATH_SAMP_DBG(dma_dbg_reg_vals[5]) & 0x38000000) >> 27);
1463                 len += snprintf(buf + len, size - len, "%7d %12d ",
1464                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x000003fc) >> 2,
1465                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00000400) >> 10);
1466                 len += snprintf(buf + len, size - len, "%12d %12d ",
1467                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00000800) >> 11,
1468                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00001000) >> 12);
1469                 len += snprintf(buf + len, size - len, "%12d %12d ",
1470                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x0001e000) >> 13,
1471                         (ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x001e0000) >> 17);
1472                 len += snprintf(buf + len, size - len, "0x%07x 0x%07x\n",
1473                                 ATH_SAMP_DBG(pcu_obs), ATH_SAMP_DBG(pcu_cr));
1474         }
1475
1476         len += snprintf(buf + len, size - len,
1477                         "Sample ChNoise Chain privNF #Reading Readings\n");
1478         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1479                 h = ATH_SAMP_DBG(nfCalHist);
1480                 if (!ATH_SAMP_DBG(noise))
1481                         continue;
1482
1483                 for (i = 0; i < NUM_NF_READINGS; i++) {
1484                         if (!(chainmask & (1 << i)) ||
1485                             ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
1486                                 continue;
1487
1488                         nread = AR_PHY_CCA_FILTERWINDOW_LENGTH -
1489                                 h[i].invalidNFcount;
1490                         len += snprintf(buf + len, size - len,
1491                                         "%4d %5d %4d\t   %d\t %d\t",
1492                                         sampidx, ATH_SAMP_DBG(noise),
1493                                         i, h[i].privNF, nread);
1494                         for (j = 0; j < nread; j++)
1495                                 len += snprintf(buf + len, size - len,
1496                                         " %d", h[i].nfCalBuffer[j]);
1497                         len += snprintf(buf + len, size - len, "\n");
1498                 }
1499         }
1500         len += snprintf(buf + len, size - len, "\nCycle counters:\n"
1501                         "Sample Total    Rxbusy   Rxframes Txframes\n");
1502         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1503                 if (!ATH_SAMP_DBG(cc.cycles))
1504                         continue;
1505                 len += snprintf(buf + len, size - len,
1506                                 "%4d %08x %08x %08x %08x\n",
1507                                 sampidx, ATH_SAMP_DBG(cc.cycles),
1508                                 ATH_SAMP_DBG(cc.rx_busy),
1509                                 ATH_SAMP_DBG(cc.rx_frame),
1510                                 ATH_SAMP_DBG(cc.tx_frame));
1511         }
1512
1513         len += snprintf(buf + len, size - len, "Tx status Dump :\n");
1514         len += snprintf(buf + len, size - len,
1515                         "Sample rssi:- ctl0 ctl1 ctl2 ext0 ext1 ext2 comb "
1516                         "isok rts_fail data_fail rate tid qid "
1517                                         "ba_low  ba_high tx_before(ms)\n");
1518         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1519                 for (i = 0; i < ATH_DBG_MAX_SAMPLES; i++) {
1520                         if (!ATH_SAMP_DBG(ts[i].jiffies))
1521                                 continue;
1522                         len += snprintf(buf + len, size - len, "%-14d"
1523                                 "%-4d %-4d %-4d %-4d %-4d %-4d %-4d %-4d %-8d "
1524                                 "%-9d %-4d %-3d %-3d %08x %08x %-11d\n",
1525                                 sampidx,
1526                                 ATH_SAMP_DBG(ts[i].rssi_ctl0),
1527                                 ATH_SAMP_DBG(ts[i].rssi_ctl1),
1528                                 ATH_SAMP_DBG(ts[i].rssi_ctl2),
1529                                 ATH_SAMP_DBG(ts[i].rssi_ext0),
1530                                 ATH_SAMP_DBG(ts[i].rssi_ext1),
1531                                 ATH_SAMP_DBG(ts[i].rssi_ext2),
1532                                 ATH_SAMP_DBG(ts[i].rssi),
1533                                 ATH_SAMP_DBG(ts[i].isok),
1534                                 ATH_SAMP_DBG(ts[i].rts_fail_cnt),
1535                                 ATH_SAMP_DBG(ts[i].data_fail_cnt),
1536                                 ATH_SAMP_DBG(ts[i].rateindex),
1537                                 ATH_SAMP_DBG(ts[i].tid),
1538                                 ATH_SAMP_DBG(ts[i].qid),
1539                                 ATH_SAMP_DBG(ts[i].ba_low),
1540                                 ATH_SAMP_DBG(ts[i].ba_high),
1541                                 jiffies_to_msecs(jiffies -
1542                                         ATH_SAMP_DBG(ts[i].jiffies)));
1543                 }
1544         }
1545
1546         len += snprintf(buf + len, size - len, "Rx status Dump :\n");
1547         len += snprintf(buf + len, size - len, "Sample rssi:- ctl0 ctl1 ctl2 "
1548                         "ext0 ext1 ext2 comb beacon ant rate rx_before(ms)\n");
1549         for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
1550                 for (i = 0; i < ATH_DBG_MAX_SAMPLES; i++) {
1551                         if (!ATH_SAMP_DBG(rs[i].jiffies))
1552                                 continue;
1553                         len += snprintf(buf + len, size - len, "%-14d"
1554                                 "%-4d %-4d %-4d %-4d %-4d %-4d %-4d %-9s %-2d %02x %-13d\n",
1555                                 sampidx,
1556                                 ATH_SAMP_DBG(rs[i].rssi_ctl0),
1557                                 ATH_SAMP_DBG(rs[i].rssi_ctl1),
1558                                 ATH_SAMP_DBG(rs[i].rssi_ctl2),
1559                                 ATH_SAMP_DBG(rs[i].rssi_ext0),
1560                                 ATH_SAMP_DBG(rs[i].rssi_ext1),
1561                                 ATH_SAMP_DBG(rs[i].rssi_ext2),
1562                                 ATH_SAMP_DBG(rs[i].rssi),
1563                                 ATH_SAMP_DBG(rs[i].is_mybeacon) ?
1564                                 "True" : "False",
1565                                 ATH_SAMP_DBG(rs[i].antenna),
1566                                 ATH_SAMP_DBG(rs[i].rate),
1567                                 jiffies_to_msecs(jiffies -
1568                                         ATH_SAMP_DBG(rs[i].jiffies)));
1569                 }
1570         }
1571
1572         vfree(bb_mac_samp);
1573         file->private_data = buf;
1574
1575         return 0;
1576 #undef ATH_SAMP_DBG
1577 }
1578
1579 static const struct file_operations fops_samps = {
1580         .open = open_file_bb_mac_samps,
1581         .read = ath9k_debugfs_read_buf,
1582         .release = ath9k_debugfs_release_buf,
1583         .owner = THIS_MODULE,
1584         .llseek = default_llseek,
1585 };
1586
1587 #endif
1588
1589 int ath9k_init_debug(struct ath_hw *ah)
1590 {
1591         struct ath_common *common = ath9k_hw_common(ah);
1592         struct ath_softc *sc = (struct ath_softc *) common->priv;
1593
1594         sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
1595                                                    sc->hw->wiphy->debugfsdir);
1596         if (!sc->debug.debugfs_phy)
1597                 return -ENOMEM;
1598
1599 #ifdef CONFIG_ATH_DEBUG
1600         debugfs_create_file("debug", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1601                             sc, &fops_debug);
1602 #endif
1603
1604         ath9k_dfs_init_debug(sc);
1605
1606         debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
1607                             &fops_dma);
1608         debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc,
1609                             &fops_interrupt);
1610         debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc,
1611                             &fops_xmit);
1612         debugfs_create_u32("qlen_bk", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1613                            &sc->tx.txq_max_pending[WME_AC_BK]);
1614         debugfs_create_u32("qlen_be", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1615                            &sc->tx.txq_max_pending[WME_AC_BE]);
1616         debugfs_create_u32("qlen_vi", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1617                            &sc->tx.txq_max_pending[WME_AC_VI]);
1618         debugfs_create_u32("qlen_vo", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1619                            &sc->tx.txq_max_pending[WME_AC_VO]);
1620         debugfs_create_file("stations", S_IRUSR, sc->debug.debugfs_phy, sc,
1621                             &fops_stations);
1622         debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc,
1623                             &fops_misc);
1624         debugfs_create_file("reset", S_IRUSR, sc->debug.debugfs_phy, sc,
1625                             &fops_reset);
1626         debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc,
1627                             &fops_recv);
1628         debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
1629                             sc->debug.debugfs_phy, sc, &fops_rx_chainmask);
1630         debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
1631                             sc->debug.debugfs_phy, sc, &fops_tx_chainmask);
1632         debugfs_create_file("disable_ani", S_IRUSR | S_IWUSR,
1633                             sc->debug.debugfs_phy, sc, &fops_disable_ani);
1634         debugfs_create_bool("paprd", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1635                             &sc->sc_ah->config.enable_paprd);
1636         debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1637                             sc, &fops_regidx);
1638         debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1639                             sc, &fops_regval);
1640         debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
1641                             sc->debug.debugfs_phy,
1642                             &ah->config.cwm_ignore_extcca);
1643         debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc,
1644                             &fops_regdump);
1645         debugfs_create_file("dump_nfcal", S_IRUSR, sc->debug.debugfs_phy, sc,
1646                             &fops_dump_nfcal);
1647         debugfs_create_file("base_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
1648                             &fops_base_eeprom);
1649         debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
1650                             &fops_modal_eeprom);
1651 #ifdef CONFIG_ATH9K_MAC_DEBUG
1652         debugfs_create_file("samples", S_IRUSR, sc->debug.debugfs_phy, sc,
1653                             &fops_samps);
1654 #endif
1655         debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
1656                            sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
1657         debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
1658                            sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
1659         debugfs_create_file("diversity", S_IRUSR | S_IWUSR,
1660                             sc->debug.debugfs_phy, sc, &fops_ant_diversity);
1661
1662         return 0;
1663 }