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 <asm/unaligned.h>
  20
  21 #include "ath9k.h"
  22
  23 #define REG_WRITE_D(_ah, _reg, _val) \
  24         ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg))
  25 #define REG_READ_D(_ah, _reg) \
  26         ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
  27
  28 static int ath9k_debugfs_open(struct inode *inode, struct file *file)
  29 {
  30         file->private_data = inode->i_private;
  31         return 0;
  32 }
  33
  34 static ssize_t ath9k_debugfs_read_buf(struct file *file, char __user *user_buf,
  35                                       size_t count, loff_t *ppos)
  36 {
  37         u8 *buf = file->private_data;
  38         return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
  39 }
  40
  41 static int ath9k_debugfs_release_buf(struct inode *inode, struct file *file)
  42 {
  43         vfree(file->private_data);
  44         return 0;
  45 }
  46
  47 #ifdef CONFIG_ATH_DEBUG
  48
  49 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
  50                              size_t count, loff_t *ppos)
  51 {
  52         struct ath_softc *sc = file->private_data;
  53         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
  54         char buf[32];
  55         unsigned int len;
  56
  57         len = sprintf(buf, "0x%08x\n", common->debug_mask);
  58         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
  59 }
  60
  61 static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
  62                              size_t count, loff_t *ppos)
  63 {
  64         struct ath_softc *sc = file->private_data;
  65         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
  66         unsigned long mask;
  67         char buf[32];
  68         ssize_t len;
  69
  70         len = min(count, sizeof(buf) - 1);
  71         if (copy_from_user(buf, user_buf, len))
  72                 return -EFAULT;
  73
  74         buf[len] = '\0';
  75         if (strict_strtoul(buf, 0, &mask))
  76                 return -EINVAL;
  77
  78         common->debug_mask = mask;
  79         return count;
  80 }
  81
  82 static const struct file_operations fops_debug = {
  83         .read = read_file_debug,
  84         .write = write_file_debug,
  85         .open = ath9k_debugfs_open,
  86         .owner = THIS_MODULE,
  87         .llseek = default_llseek,
  88 };
  89
  90 #endif
  91
  92 #define DMA_BUF_LEN 1024
  93
  94 static ssize_t read_file_tx_chainmask(struct file *file, char __user *user_buf,
  95                              size_t count, loff_t *ppos)
  96 {
  97         struct ath_softc *sc = file->private_data;
  98         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
  99         char buf[32];
 100         unsigned int len;
 101
 102         len = sprintf(buf, "0x%08x\n", common->tx_chainmask);
 103         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 104 }
 105
 106 static ssize_t write_file_tx_chainmask(struct file *file, const char __user *user_buf,
 107                              size_t count, loff_t *ppos)
 108 {
 109         struct ath_softc *sc = file->private_data;
 110         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 111         unsigned long mask;
 112         char buf[32];
 113         ssize_t len;
 114
 115         len = min(count, sizeof(buf) - 1);
 116         if (copy_from_user(buf, user_buf, len))
 117                 return -EFAULT;
 118
 119         buf[len] = '\0';
 120         if (strict_strtoul(buf, 0, &mask))
 121                 return -EINVAL;
 122
 123         common->tx_chainmask = mask;
 124         sc->sc_ah->caps.tx_chainmask = mask;
 125         return count;
 126 }
 127
 128 static const struct file_operations fops_tx_chainmask = {
 129         .read = read_file_tx_chainmask,
 130         .write = write_file_tx_chainmask,
 131         .open = ath9k_debugfs_open,
 132         .owner = THIS_MODULE,
 133         .llseek = default_llseek,
 134 };
 135
 136
 137 static ssize_t read_file_rx_chainmask(struct file *file, char __user *user_buf,
 138                              size_t count, loff_t *ppos)
 139 {
 140         struct ath_softc *sc = file->private_data;
 141         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 142         char buf[32];
 143         unsigned int len;
 144
 145         len = sprintf(buf, "0x%08x\n", common->rx_chainmask);
 146         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 147 }
 148
 149 static ssize_t write_file_rx_chainmask(struct file *file, const char __user *user_buf,
 150                              size_t count, loff_t *ppos)
 151 {
 152         struct ath_softc *sc = file->private_data;
 153         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 154         unsigned long mask;
 155         char buf[32];
 156         ssize_t len;
 157
 158         len = min(count, sizeof(buf) - 1);
 159         if (copy_from_user(buf, user_buf, len))
 160                 return -EFAULT;
 161
 162         buf[len] = '\0';
 163         if (strict_strtoul(buf, 0, &mask))
 164                 return -EINVAL;
 165
 166         common->rx_chainmask = mask;
 167         sc->sc_ah->caps.rx_chainmask = mask;
 168         return count;
 169 }
 170
 171 static const struct file_operations fops_rx_chainmask = {
 172         .read = read_file_rx_chainmask,
 173         .write = write_file_rx_chainmask,
 174         .open = ath9k_debugfs_open,
 175         .owner = THIS_MODULE,
 176         .llseek = default_llseek,
 177 };
 178
 179 static ssize_t read_file_disable_ani(struct file *file, char __user *user_buf,
 180                              size_t count, loff_t *ppos)
 181 {
 182         struct ath_softc *sc = file->private_data;
 183         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 184         char buf[32];
 185         unsigned int len;
 186
 187         len = sprintf(buf, "%d\n", common->disable_ani);
 188         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 189 }
 190
 191 static ssize_t write_file_disable_ani(struct file *file,
 192                                       const char __user *user_buf,
 193                                       size_t count, loff_t *ppos)
 194 {
 195         struct ath_softc *sc = file->private_data;
 196         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 197         unsigned long disable_ani;
 198         char buf[32];
 199         ssize_t len;
 200
 201         len = min(count, sizeof(buf) - 1);
 202         if (copy_from_user(buf, user_buf, len))
 203                 return -EFAULT;
 204
 205         buf[len] = '\0';
 206         if (strict_strtoul(buf, 0, &disable_ani))
 207                 return -EINVAL;
 208
 209         common->disable_ani = !!disable_ani;
 210
 211         if (disable_ani) {
 212                 sc->sc_flags &= ~SC_OP_ANI_RUN;
 213                 del_timer_sync(&common->ani.timer);
 214         } else {
 215                 sc->sc_flags |= SC_OP_ANI_RUN;
 216                 ath_start_ani(common);
 217         }
 218
 219         return count;
 220 }
 221
 222 static const struct file_operations fops_disable_ani = {
 223         .read = read_file_disable_ani,
 224         .write = write_file_disable_ani,
 225         .open = ath9k_debugfs_open,
 226         .owner = THIS_MODULE,
 227         .llseek = default_llseek,
 228 };
 229
 230 static ssize_t read_file_dma(struct file *file, char __user *user_buf,
 231                              size_t count, loff_t *ppos)
 232 {
 233         struct ath_softc *sc = file->private_data;
 234         struct ath_hw *ah = sc->sc_ah;
 235         char *buf;
 236         int retval;
 237         unsigned int len = 0;
 238         u32 val[ATH9K_NUM_DMA_DEBUG_REGS];
 239         int i, qcuOffset = 0, dcuOffset = 0;
 240         u32 *qcuBase = &val[0], *dcuBase = &val[4];
 241
 242         buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
 243         if (!buf)
 244                 return -ENOMEM;
 245
 246         ath9k_ps_wakeup(sc);
 247
 248         REG_WRITE_D(ah, AR_MACMISC,
 249                   ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
 250                    (AR_MACMISC_MISC_OBS_BUS_1 <<
 251                     AR_MACMISC_MISC_OBS_BUS_MSB_S)));
 252
 253         len += snprintf(buf + len, DMA_BUF_LEN - len,
 254                         "Raw DMA Debug values:\n");
 255
 256         for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
 257                 if (i % 4 == 0)
 258                         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
 259
 260                 val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
 261                 len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
 262                                 i, val[i]);
 263         }
 264
 265         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
 266         len += snprintf(buf + len, DMA_BUF_LEN - len,
 267                         "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
 268
 269         for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
 270                 if (i == 8) {
 271                         qcuOffset = 0;
 272                         qcuBase++;
 273                 }
 274
 275                 if (i == 6) {
 276                         dcuOffset = 0;
 277                         dcuBase++;
 278                 }
 279
 280                 len += snprintf(buf + len, DMA_BUF_LEN - len,
 281                         "%2d          %2x      %1x     %2x           %2x\n",
 282                         i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
 283                         (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
 284                         val[2] & (0x7 << (i * 3)) >> (i * 3),
 285                         (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
 286         }
 287
 288         len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
 289
 290         len += snprintf(buf + len, DMA_BUF_LEN - len,
 291                 "qcu_stitch state:   %2x    qcu_fetch state:        %2x\n",
 292                 (val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
 293         len += snprintf(buf + len, DMA_BUF_LEN - len,
 294                 "qcu_complete state: %2x    dcu_complete state:     %2x\n",
 295                 (val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
 296         len += snprintf(buf + len, DMA_BUF_LEN - len,
 297                 "dcu_arb state:      %2x    dcu_fp state:           %2x\n",
 298                 (val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
 299         len += snprintf(buf + len, DMA_BUF_LEN - len,
 300                 "chan_idle_dur:     %3d    chan_idle_dur_valid:     %1d\n",
 301                 (val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
 302         len += snprintf(buf + len, DMA_BUF_LEN - len,
 303                 "txfifo_valid_0:      %1d    txfifo_valid_1:          %1d\n",
 304                 (val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
 305         len += snprintf(buf + len, DMA_BUF_LEN - len,
 306                 "txfifo_dcu_num_0:   %2d    txfifo_dcu_num_1:       %2d\n",
 307                 (val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
 308
 309         len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
 310                         REG_READ_D(ah, AR_OBS_BUS_1));
 311         len += snprintf(buf + len, DMA_BUF_LEN - len,
 312                         "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
 313
 314         ath9k_ps_restore(sc);
 315
 316         if (len > DMA_BUF_LEN)
 317                 len = DMA_BUF_LEN;
 318
 319         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 320         kfree(buf);
 321         return retval;
 322 }
 323
 324 static const struct file_operations fops_dma = {
 325         .read = read_file_dma,
 326         .open = ath9k_debugfs_open,
 327         .owner = THIS_MODULE,
 328         .llseek = default_llseek,
 329 };
 330
 331
 332 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
 333 {
 334         if (status)
 335                 sc->debug.stats.istats.total++;
 336         if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 337                 if (status & ATH9K_INT_RXLP)
 338                         sc->debug.stats.istats.rxlp++;
 339                 if (status & ATH9K_INT_RXHP)
 340                         sc->debug.stats.istats.rxhp++;
 341                 if (status & ATH9K_INT_BB_WATCHDOG)
 342                         sc->debug.stats.istats.bb_watchdog++;
 343         } else {
 344                 if (status & ATH9K_INT_RX)
 345                         sc->debug.stats.istats.rxok++;
 346         }
 347         if (status & ATH9K_INT_RXEOL)
 348                 sc->debug.stats.istats.rxeol++;
 349         if (status & ATH9K_INT_RXORN)
 350                 sc->debug.stats.istats.rxorn++;
 351         if (status & ATH9K_INT_TX)
 352                 sc->debug.stats.istats.txok++;
 353         if (status & ATH9K_INT_TXURN)
 354                 sc->debug.stats.istats.txurn++;
 355         if (status & ATH9K_INT_MIB)
 356                 sc->debug.stats.istats.mib++;
 357         if (status & ATH9K_INT_RXPHY)
 358                 sc->debug.stats.istats.rxphyerr++;
 359         if (status & ATH9K_INT_RXKCM)
 360                 sc->debug.stats.istats.rx_keycache_miss++;
 361         if (status & ATH9K_INT_SWBA)
 362                 sc->debug.stats.istats.swba++;
 363         if (status & ATH9K_INT_BMISS)
 364                 sc->debug.stats.istats.bmiss++;
 365         if (status & ATH9K_INT_BNR)
 366                 sc->debug.stats.istats.bnr++;
 367         if (status & ATH9K_INT_CST)
 368                 sc->debug.stats.istats.cst++;
 369         if (status & ATH9K_INT_GTT)
 370                 sc->debug.stats.istats.gtt++;
 371         if (status & ATH9K_INT_TIM)
 372                 sc->debug.stats.istats.tim++;
 373         if (status & ATH9K_INT_CABEND)
 374                 sc->debug.stats.istats.cabend++;
 375         if (status & ATH9K_INT_DTIMSYNC)
 376                 sc->debug.stats.istats.dtimsync++;
 377         if (status & ATH9K_INT_DTIM)
 378                 sc->debug.stats.istats.dtim++;
 379         if (status & ATH9K_INT_TSFOOR)
 380                 sc->debug.stats.istats.tsfoor++;
 381 }
 382
 383 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
 384                                    size_t count, loff_t *ppos)
 385 {
 386         struct ath_softc *sc = file->private_data;
 387         char buf[512];
 388         unsigned int len = 0;
 389
 390         if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 391                 len += snprintf(buf + len, sizeof(buf) - len,
 392                         "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp);
 393                 len += snprintf(buf + len, sizeof(buf) - len,
 394                         "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp);
 395                 len += snprintf(buf + len, sizeof(buf) - len,
 396                         "%8s: %10u\n", "WATCHDOG",
 397                         sc->debug.stats.istats.bb_watchdog);
 398         } else {
 399                 len += snprintf(buf + len, sizeof(buf) - len,
 400                         "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
 401         }
 402         len += snprintf(buf + len, sizeof(buf) - len,
 403                 "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol);
 404         len += snprintf(buf + len, sizeof(buf) - len,
 405                 "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn);
 406         len += snprintf(buf + len, sizeof(buf) - len,
 407                 "%8s: %10u\n", "TX", sc->debug.stats.istats.txok);
 408         len += snprintf(buf + len, sizeof(buf) - len,
 409                 "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn);
 410         len += snprintf(buf + len, sizeof(buf) - len,
 411                 "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib);
 412         len += snprintf(buf + len, sizeof(buf) - len,
 413                 "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr);
 414         len += snprintf(buf + len, sizeof(buf) - len,
 415                 "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss);
 416         len += snprintf(buf + len, sizeof(buf) - len,
 417                 "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba);
 418         len += snprintf(buf + len, sizeof(buf) - len,
 419                 "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss);
 420         len += snprintf(buf + len, sizeof(buf) - len,
 421                 "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr);
 422         len += snprintf(buf + len, sizeof(buf) - len,
 423                 "%8s: %10u\n", "CST", sc->debug.stats.istats.cst);
 424         len += snprintf(buf + len, sizeof(buf) - len,
 425                 "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt);
 426         len += snprintf(buf + len, sizeof(buf) - len,
 427                 "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim);
 428         len += snprintf(buf + len, sizeof(buf) - len,
 429                 "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend);
 430         len += snprintf(buf + len, sizeof(buf) - len,
 431                 "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync);
 432         len += snprintf(buf + len, sizeof(buf) - len,
 433                 "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
 434         len += snprintf(buf + len, sizeof(buf) - len,
 435                 "%8s: %10u\n", "TSFOOR", sc->debug.stats.istats.tsfoor);
 436         len += snprintf(buf + len, sizeof(buf) - len,
 437                 "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
 438
 439
 440         if (len > sizeof(buf))
 441                 len = sizeof(buf);
 442
 443         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 444 }
 445
 446 static const struct file_operations fops_interrupt = {
 447         .read = read_file_interrupt,
 448         .open = ath9k_debugfs_open,
 449         .owner = THIS_MODULE,
 450         .llseek = default_llseek,
 451 };
 452
 453 static const char *channel_type_str(enum nl80211_channel_type t)
 454 {
 455         switch (t) {
 456         case NL80211_CHAN_NO_HT:
 457                 return "no ht";
 458         case NL80211_CHAN_HT20:
 459                 return "ht20";
 460         case NL80211_CHAN_HT40MINUS:
 461                 return "ht40-";
 462         case NL80211_CHAN_HT40PLUS:
 463                 return "ht40+";
 464         default:
 465                 return "???";
 466         }
 467 }
 468
 469 static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
 470                                size_t count, loff_t *ppos)
 471 {
 472         struct ath_softc *sc = file->private_data;
 473         struct ieee80211_channel *chan = sc->hw->conf.channel;
 474         struct ieee80211_conf *conf = &(sc->hw->conf);
 475         char buf[512];
 476         unsigned int len = 0;
 477         u8 addr[ETH_ALEN];
 478         u32 tmp;
 479
 480         len += snprintf(buf + len, sizeof(buf) - len,
 481                         "%s (chan=%d  center-freq: %d MHz  channel-type: %d (%s))\n",
 482                         wiphy_name(sc->hw->wiphy),
 483                         ieee80211_frequency_to_channel(chan->center_freq),
 484                         chan->center_freq,
 485                         conf->channel_type,
 486                         channel_type_str(conf->channel_type));
 487
 488         ath9k_ps_wakeup(sc);
 489         put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
 490         put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
 491         len += snprintf(buf + len, sizeof(buf) - len,
 492                         "addr: %pM\n", addr);
 493         put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_BSSMSKL), addr);
 494         put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_BSSMSKU) & 0xffff, addr + 4);
 495         len += snprintf(buf + len, sizeof(buf) - len,
 496                         "addrmask: %pM\n", addr);
 497         tmp = ath9k_hw_getrxfilter(sc->sc_ah);
 498         ath9k_ps_restore(sc);
 499         len += snprintf(buf + len, sizeof(buf) - len,
 500                         "rfilt: 0x%x", tmp);
 501         if (tmp & ATH9K_RX_FILTER_UCAST)
 502                 len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
 503         if (tmp & ATH9K_RX_FILTER_MCAST)
 504                 len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
 505         if (tmp & ATH9K_RX_FILTER_BCAST)
 506                 len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
 507         if (tmp & ATH9K_RX_FILTER_CONTROL)
 508                 len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
 509         if (tmp & ATH9K_RX_FILTER_BEACON)
 510                 len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
 511         if (tmp & ATH9K_RX_FILTER_PROM)
 512                 len += snprintf(buf + len, sizeof(buf) - len, " PROM");
 513         if (tmp & ATH9K_RX_FILTER_PROBEREQ)
 514                 len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
 515         if (tmp & ATH9K_RX_FILTER_PHYERR)
 516                 len += snprintf(buf + len, sizeof(buf) - len, " PHYERR");
 517         if (tmp & ATH9K_RX_FILTER_MYBEACON)
 518                 len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON");
 519         if (tmp & ATH9K_RX_FILTER_COMP_BAR)
 520                 len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
 521         if (tmp & ATH9K_RX_FILTER_PSPOLL)
 522                 len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL");
 523         if (tmp & ATH9K_RX_FILTER_PHYRADAR)
 524                 len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
 525         if (tmp & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
 526                 len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL\n");
 527         else
 528                 len += snprintf(buf + len, sizeof(buf) - len, "\n");
 529
 530         if (len > sizeof(buf))
 531                 len = sizeof(buf);
 532
 533         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 534 }
 535
 536 static const struct file_operations fops_wiphy = {
 537         .read = read_file_wiphy,
 538         .open = ath9k_debugfs_open,
 539         .owner = THIS_MODULE,
 540         .llseek = default_llseek,
 541 };
 542
 543 #define PR_QNUM(_n) sc->tx.txq_map[_n]->axq_qnum
 544 #define PR(str, elem)                                                   \
 545         do {                                                            \
 546                 len += snprintf(buf + len, size - len,                  \
 547                                 "%s%13u%11u%10u%10u\n", str,            \
 548                 sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].elem, \
 549                 sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].elem, \
 550                 sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].elem, \
 551                 sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].elem); \
 552                 if (len >= size)                          \
 553                         goto done;                        \
 554 } while(0)
 555
 556 #define PRX(str, elem)                                                  \
 557 do {                                                                    \
 558         len += snprintf(buf + len, size - len,                          \
 559                         "%s%13u%11u%10u%10u\n", str,                    \
 560                         (unsigned int)(sc->tx.txq_map[WME_AC_BE]->elem),        \
 561                         (unsigned int)(sc->tx.txq_map[WME_AC_BK]->elem),        \
 562                         (unsigned int)(sc->tx.txq_map[WME_AC_VI]->elem),        \
 563                         (unsigned int)(sc->tx.txq_map[WME_AC_VO]->elem));       \
 564         if (len >= size)                                                \
 565                 goto done;                                              \
 566 } while(0)
 567
 568 #define PRQLE(str, elem)                                                \
 569 do {                                                                    \
 570         len += snprintf(buf + len, size - len,                          \
 571                         "%s%13i%11i%10i%10i\n", str,                    \
 572                         list_empty(&sc->tx.txq_map[WME_AC_BE]->elem),   \
 573                         list_empty(&sc->tx.txq_map[WME_AC_BK]->elem),   \
 574                         list_empty(&sc->tx.txq_map[WME_AC_VI]->elem),   \
 575                         list_empty(&sc->tx.txq_map[WME_AC_VO]->elem));  \
 576         if (len >= size)                                                \
 577                 goto done;                                              \
 578 } while (0)
 579
 580 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
 581                               size_t count, loff_t *ppos)
 582 {
 583         struct ath_softc *sc = file->private_data;
 584         char *buf;
 585         unsigned int len = 0, size = 8000;
 586         int i;
 587         ssize_t retval = 0;
 588         char tmp[32];
 589
 590         buf = kzalloc(size, GFP_KERNEL);
 591         if (buf == NULL)
 592                 return -ENOMEM;
 593
 594         len += sprintf(buf, "Num-Tx-Queues: %i  tx-queues-setup: 0x%x"
 595                        " poll-work-seen: %u\n"
 596                        "%30s %10s%10s%10s\n\n",
 597                        ATH9K_NUM_TX_QUEUES, sc->tx.txqsetup,
 598                        sc->tx_complete_poll_work_seen,
 599                        "BE", "BK", "VI", "VO");
 600
 601         PR("MPDUs Queued:    ", queued);
 602         PR("MPDUs Completed: ", completed);
 603         PR("MPDUs XRetried:  ", xretries);
 604         PR("Aggregates:      ", a_aggr);
 605         PR("AMPDUs Queued HW:", a_queued_hw);
 606         PR("AMPDUs Queued SW:", a_queued_sw);
 607         PR("AMPDUs Completed:", a_completed);
 608         PR("AMPDUs Retried:  ", a_retries);
 609         PR("AMPDUs XRetried: ", a_xretries);
 610         PR("FIFO Underrun:   ", fifo_underrun);
 611         PR("TXOP Exceeded:   ", xtxop);
 612         PR("TXTIMER Expiry:  ", timer_exp);
 613         PR("DESC CFG Error:  ", desc_cfg_err);
 614         PR("DATA Underrun:   ", data_underrun);
 615         PR("DELIM Underrun:  ", delim_underrun);
 616         PR("TX-Pkts-All:     ", tx_pkts_all);
 617         PR("TX-Bytes-All:    ", tx_bytes_all);
 618         PR("hw-put-tx-buf:   ", puttxbuf);
 619         PR("hw-tx-start:     ", txstart);
 620         PR("hw-tx-proc-desc: ", txprocdesc);
 621         len += snprintf(buf + len, size - len,
 622                         "%s%11p%11p%10p%10p\n", "txq-memory-address:",
 623                         sc->tx.txq_map[WME_AC_BE],
 624                         sc->tx.txq_map[WME_AC_BK],
 625                         sc->tx.txq_map[WME_AC_VI],
 626                         sc->tx.txq_map[WME_AC_VO]);
 627         if (len >= size)
 628                 goto done;
 629
 630         PRX("axq-qnum:        ", axq_qnum);
 631         PRX("axq-depth:       ", axq_depth);
 632         PRX("axq-ampdu_depth: ", axq_ampdu_depth);
 633         PRX("axq-stopped      ", stopped);
 634         PRX("tx-in-progress   ", axq_tx_inprogress);
 635         PRX("pending-frames   ", pending_frames);
 636         PRX("txq_headidx:     ", txq_headidx);
 637         PRX("txq_tailidx:     ", txq_headidx);
 638
 639         PRQLE("axq_q empty:       ", axq_q);
 640         PRQLE("axq_acq empty:     ", axq_acq);
 641         for (i = 0; i < ATH_TXFIFO_DEPTH; i++) {
 642                 snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i);
 643                 PRQLE(tmp, txq_fifo[i]);
 644         }
 645
 646         /* Print out more detailed queue-info */
 647         for (i = 0; i <= WME_AC_BK; i++) {
 648                 struct ath_txq *txq = &(sc->tx.txq[i]);
 649                 struct ath_atx_ac *ac;
 650                 struct ath_atx_tid *tid;
 651                 if (len >= size)
 652                         goto done;
 653                 spin_lock_bh(&txq->axq_lock);
 654                 if (!list_empty(&txq->axq_acq)) {
 655                         ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac,
 656                                               list);
 657                         len += snprintf(buf + len, size - len,
 658                                         "txq[%i] first-ac: %p sched: %i\n",
 659                                         i, ac, ac->sched);
 660                         if (list_empty(&ac->tid_q) || (len >= size))
 661                                 goto done_for;
 662                         tid = list_first_entry(&ac->tid_q, struct ath_atx_tid,
 663                                                list);
 664                         len += snprintf(buf + len, size - len,
 665                                         " first-tid: %p sched: %i paused: %i\n",
 666                                         tid, tid->sched, tid->paused);
 667                 }
 668         done_for:
 669                 spin_unlock_bh(&txq->axq_lock);
 670         }
 671
 672 done:
 673         if (len > size)
 674                 len = size;
 675
 676         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 677         kfree(buf);
 678
 679         return retval;
 680 }
 681
 682 static ssize_t read_file_stations(struct file *file, char __user *user_buf,
 683                                   size_t count, loff_t *ppos)
 684 {
 685         struct ath_softc *sc = file->private_data;
 686         char *buf;
 687         unsigned int len = 0, size = 64000;
 688         struct ath_node *an = NULL;
 689         ssize_t retval = 0;
 690         int q;
 691
 692         buf = kzalloc(size, GFP_KERNEL);
 693         if (buf == NULL)
 694                 return -ENOMEM;
 695
 696         len += snprintf(buf + len, size - len,
 697                         "Stations:\n"
 698                         " tid: addr sched paused buf_q-empty an ac\n"
 699                         " ac: addr sched tid_q-empty txq\n");
 700
 701         spin_lock(&sc->nodes_lock);
 702         list_for_each_entry(an, &sc->nodes, list) {
 703                 len += snprintf(buf + len, size - len,
 704                                 "%pM\n", an->sta->addr);
 705                 if (len >= size)
 706                         goto done;
 707
 708                 for (q = 0; q < WME_NUM_TID; q++) {
 709                         struct ath_atx_tid *tid = &(an->tid[q]);
 710                         len += snprintf(buf + len, size - len,
 711                                         " tid: %p %s %s %i %p %p\n",
 712                                         tid, tid->sched ? "sched" : "idle",
 713                                         tid->paused ? "paused" : "running",
 714                                         list_empty(&tid->buf_q),
 715                                         tid->an, tid->ac);
 716                         if (len >= size)
 717                                 goto done;
 718                 }
 719
 720                 for (q = 0; q < WME_NUM_AC; q++) {
 721                         struct ath_atx_ac *ac = &(an->ac[q]);
 722                         len += snprintf(buf + len, size - len,
 723                                         " ac: %p %s %i %p\n",
 724                                         ac, ac->sched ? "sched" : "idle",
 725                                         list_empty(&ac->tid_q), ac->txq);
 726                         if (len >= size)
 727                                 goto done;
 728                 }
 729         }
 730
 731 done:
 732         spin_unlock(&sc->nodes_lock);
 733         if (len > size)
 734                 len = size;
 735
 736         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 737         kfree(buf);
 738
 739         return retval;
 740 }
 741
 742 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
 743                               size_t count, loff_t *ppos)
 744 {
 745         struct ath_softc *sc = file->private_data;
 746         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 747         struct ath_hw *ah = sc->sc_ah;
 748         struct ieee80211_hw *hw = sc->hw;
 749         char *buf;
 750         unsigned int len = 0, size = 8000;
 751         ssize_t retval = 0;
 752         unsigned int reg;
 753         struct ath9k_vif_iter_data iter_data;
 754
 755         ath9k_calculate_iter_data(hw, NULL, &iter_data);
 756
 757         buf = kzalloc(size, GFP_KERNEL);
 758         if (buf == NULL)
 759                 return -ENOMEM;
 760
 761         ath9k_ps_wakeup(sc);
 762         len += snprintf(buf + len, size - len,
 763                         "curbssid: %pM\n"
 764                         "OP-Mode: %s(%i)\n"
 765                         "Beacon-Timer-Register: 0x%x\n",
 766                         common->curbssid,
 767                         ath_opmode_to_string(sc->sc_ah->opmode),
 768                         (int)(sc->sc_ah->opmode),
 769                         REG_READ(ah, AR_BEACON_PERIOD));
 770
 771         reg = REG_READ(ah, AR_TIMER_MODE);
 772         ath9k_ps_restore(sc);
 773         len += snprintf(buf + len, size - len, "Timer-Mode-Register: 0x%x (",
 774                         reg);
 775         if (reg & AR_TBTT_TIMER_EN)
 776                 len += snprintf(buf + len, size - len, "TBTT ");
 777         if (reg & AR_DBA_TIMER_EN)
 778                 len += snprintf(buf + len, size - len, "DBA ");
 779         if (reg & AR_SWBA_TIMER_EN)
 780                 len += snprintf(buf + len, size - len, "SWBA ");
 781         if (reg & AR_HCF_TIMER_EN)
 782                 len += snprintf(buf + len, size - len, "HCF ");
 783         if (reg & AR_TIM_TIMER_EN)
 784                 len += snprintf(buf + len, size - len, "TIM ");
 785         if (reg & AR_DTIM_TIMER_EN)
 786                 len += snprintf(buf + len, size - len, "DTIM ");
 787         len += snprintf(buf + len, size - len, ")\n");
 788
 789         reg = sc->sc_ah->imask;
 790         len += snprintf(buf + len, size - len, "imask: 0x%x (", reg);
 791         if (reg & ATH9K_INT_SWBA)
 792                 len += snprintf(buf + len, size - len, "SWBA ");
 793         if (reg & ATH9K_INT_BMISS)
 794                 len += snprintf(buf + len, size - len, "BMISS ");
 795         if (reg & ATH9K_INT_CST)
 796                 len += snprintf(buf + len, size - len, "CST ");
 797         if (reg & ATH9K_INT_RX)
 798                 len += snprintf(buf + len, size - len, "RX ");
 799         if (reg & ATH9K_INT_RXHP)
 800                 len += snprintf(buf + len, size - len, "RXHP ");
 801         if (reg & ATH9K_INT_RXLP)
 802                 len += snprintf(buf + len, size - len, "RXLP ");
 803         if (reg & ATH9K_INT_BB_WATCHDOG)
 804                 len += snprintf(buf + len, size - len, "BB_WATCHDOG ");
 805         /* there are other IRQs if one wanted to add them. */
 806         len += snprintf(buf + len, size - len, ")\n");
 807
 808         len += snprintf(buf + len, size - len,
 809                         "VIF Counts: AP: %i STA: %i MESH: %i WDS: %i"
 810                         " ADHOC: %i OTHER: %i nvifs: %hi beacon-vifs: %hi\n",
 811                         iter_data.naps, iter_data.nstations, iter_data.nmeshes,
 812                         iter_data.nwds, iter_data.nadhocs, iter_data.nothers,
 813                         sc->nvifs, sc->nbcnvifs);
 814
 815         len += snprintf(buf + len, size - len,
 816                         "Calculated-BSSID-Mask: %pM\n",
 817                         iter_data.mask);
 818
 819         if (len > size)
 820                 len = size;
 821
 822         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 823         kfree(buf);
 824
 825         return retval;
 826 }
 827
 828 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 829                        struct ath_tx_status *ts, struct ath_txq *txq)
 830 {
 831         int qnum = txq->axq_qnum;
 832
 833         TX_STAT_INC(qnum, tx_pkts_all);
 834         sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
 835
 836         if (bf_isampdu(bf)) {
 837                 if (bf_isxretried(bf))
 838                         TX_STAT_INC(qnum, a_xretries);
 839                 else
 840                         TX_STAT_INC(qnum, a_completed);
 841         } else {
 842                 if (bf_isxretried(bf))
 843                         TX_STAT_INC(qnum, xretries);
 844                 else
 845                         TX_STAT_INC(qnum, completed);
 846         }
 847
 848         if (ts->ts_status & ATH9K_TXERR_FIFO)
 849                 TX_STAT_INC(qnum, fifo_underrun);
 850         if (ts->ts_status & ATH9K_TXERR_XTXOP)
 851                 TX_STAT_INC(qnum, xtxop);
 852         if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
 853                 TX_STAT_INC(qnum, timer_exp);
 854         if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
 855                 TX_STAT_INC(qnum, desc_cfg_err);
 856         if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
 857                 TX_STAT_INC(qnum, data_underrun);
 858         if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
 859                 TX_STAT_INC(qnum, delim_underrun);
 860 }
 861
 862 static const struct file_operations fops_xmit = {
 863         .read = read_file_xmit,
 864         .open = ath9k_debugfs_open,
 865         .owner = THIS_MODULE,
 866         .llseek = default_llseek,
 867 };
 868
 869 static const struct file_operations fops_stations = {
 870         .read = read_file_stations,
 871         .open = ath9k_debugfs_open,
 872         .owner = THIS_MODULE,
 873         .llseek = default_llseek,
 874 };
 875
 876 static const struct file_operations fops_misc = {
 877         .read = read_file_misc,
 878         .open = ath9k_debugfs_open,
 879         .owner = THIS_MODULE,
 880         .llseek = default_llseek,
 881 };
 882
 883 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 884                               size_t count, loff_t *ppos)
 885 {
 886 #define PHY_ERR(s, p) \
 887         len += snprintf(buf + len, size - len, "%18s : %10u\n", s, \
 888                         sc->debug.stats.rxstats.phy_err_stats[p]);
 889
 890         struct ath_softc *sc = file->private_data;
 891         char *buf;
 892         unsigned int len = 0, size = 1400;
 893         ssize_t retval = 0;
 894
 895         buf = kzalloc(size, GFP_KERNEL);
 896         if (buf == NULL)
 897                 return -ENOMEM;
 898
 899         len += snprintf(buf + len, size - len,
 900                         "%18s : %10u\n", "CRC ERR",
 901                         sc->debug.stats.rxstats.crc_err);
 902         len += snprintf(buf + len, size - len,
 903                         "%18s : %10u\n", "DECRYPT CRC ERR",
 904                         sc->debug.stats.rxstats.decrypt_crc_err);
 905         len += snprintf(buf + len, size - len,
 906                         "%18s : %10u\n", "PHY ERR",
 907                         sc->debug.stats.rxstats.phy_err);
 908         len += snprintf(buf + len, size - len,
 909                         "%18s : %10u\n", "MIC ERR",
 910                         sc->debug.stats.rxstats.mic_err);
 911         len += snprintf(buf + len, size - len,
 912                         "%18s : %10u\n", "PRE-DELIM CRC ERR",
 913                         sc->debug.stats.rxstats.pre_delim_crc_err);
 914         len += snprintf(buf + len, size - len,
 915                         "%18s : %10u\n", "POST-DELIM CRC ERR",
 916                         sc->debug.stats.rxstats.post_delim_crc_err);
 917         len += snprintf(buf + len, size - len,
 918                         "%18s : %10u\n", "DECRYPT BUSY ERR",
 919                         sc->debug.stats.rxstats.decrypt_busy_err);
 920
 921         len += snprintf(buf + len, size - len,
 922                         "%18s : %10d\n", "RSSI-CTL0",
 923                         sc->debug.stats.rxstats.rs_rssi_ctl0);
 924
 925         len += snprintf(buf + len, size - len,
 926                         "%18s : %10d\n", "RSSI-CTL1",
 927                         sc->debug.stats.rxstats.rs_rssi_ctl1);
 928
 929         len += snprintf(buf + len, size - len,
 930                         "%18s : %10d\n", "RSSI-CTL2",
 931                         sc->debug.stats.rxstats.rs_rssi_ctl2);
 932
 933         len += snprintf(buf + len, size - len,
 934                         "%18s : %10d\n", "RSSI-EXT0",
 935                         sc->debug.stats.rxstats.rs_rssi_ext0);
 936
 937         len += snprintf(buf + len, size - len,
 938                         "%18s : %10d\n", "RSSI-EXT1",
 939                         sc->debug.stats.rxstats.rs_rssi_ext1);
 940
 941         len += snprintf(buf + len, size - len,
 942                         "%18s : %10d\n", "RSSI-EXT2",
 943                         sc->debug.stats.rxstats.rs_rssi_ext2);
 944
 945         len += snprintf(buf + len, size - len,
 946                         "%18s : %10d\n", "Rx Antenna",
 947                         sc->debug.stats.rxstats.rs_antenna);
 948
 949         PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);
 950         PHY_ERR("TIMING", ATH9K_PHYERR_TIMING);
 951         PHY_ERR("PARITY", ATH9K_PHYERR_PARITY);
 952         PHY_ERR("RATE", ATH9K_PHYERR_RATE);
 953         PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH);
 954         PHY_ERR("RADAR", ATH9K_PHYERR_RADAR);
 955         PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE);
 956         PHY_ERR("TOR", ATH9K_PHYERR_TOR);
 957         PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING);
 958         PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
 959         PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
 960         PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
 961         PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP);
 962         PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE);
 963         PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART);
 964         PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT);
 965         PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING);
 966         PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC);
 967         PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
 968         PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE);
 969         PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART);
 970         PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
 971         PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP);
 972         PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR);
 973         PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
 974         PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL);
 975
 976         len += snprintf(buf + len, size - len,
 977                         "%18s : %10u\n", "RX-Pkts-All",
 978                         sc->debug.stats.rxstats.rx_pkts_all);
 979         len += snprintf(buf + len, size - len,
 980                         "%18s : %10u\n", "RX-Bytes-All",
 981                         sc->debug.stats.rxstats.rx_bytes_all);
 982
 983         if (len > size)
 984                 len = size;
 985
 986         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 987         kfree(buf);
 988
 989         return retval;
 990
 991 #undef PHY_ERR
 992 }
 993
 994 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
 995 {
 996 #define RX_STAT_INC(c) sc->debug.stats.rxstats.c++
 997 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
 998
 999         u32 phyerr;
1000
1001         RX_STAT_INC(rx_pkts_all);
1002         sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen;
1003
1004         if (rs->rs_status & ATH9K_RXERR_CRC)
1005                 RX_STAT_INC(crc_err);
1006         if (rs->rs_status & ATH9K_RXERR_DECRYPT)
1007                 RX_STAT_INC(decrypt_crc_err);
1008         if (rs->rs_status & ATH9K_RXERR_MIC)
1009                 RX_STAT_INC(mic_err);
1010         if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
1011                 RX_STAT_INC(pre_delim_crc_err);
1012         if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
1013                 RX_STAT_INC(post_delim_crc_err);
1014         if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
1015                 RX_STAT_INC(decrypt_busy_err);
1016
1017         if (rs->rs_status & ATH9K_RXERR_PHY) {
1018                 RX_STAT_INC(phy_err);
1019                 phyerr = rs->rs_phyerr & 0x24;
1020                 RX_PHY_ERR_INC(phyerr);
1021         }
1022
1023         sc->debug.stats.rxstats.rs_rssi_ctl0 = rs->rs_rssi_ctl0;
1024         sc->debug.stats.rxstats.rs_rssi_ctl1 = rs->rs_rssi_ctl1;
1025         sc->debug.stats.rxstats.rs_rssi_ctl2 = rs->rs_rssi_ctl2;
1026
1027         sc->debug.stats.rxstats.rs_rssi_ext0 = rs->rs_rssi_ext0;
1028         sc->debug.stats.rxstats.rs_rssi_ext1 = rs->rs_rssi_ext1;
1029         sc->debug.stats.rxstats.rs_rssi_ext2 = rs->rs_rssi_ext2;
1030
1031         sc->debug.stats.rxstats.rs_antenna = rs->rs_antenna;
1032
1033 #undef RX_STAT_INC
1034 #undef RX_PHY_ERR_INC
1035 }
1036
1037 static const struct file_operations fops_recv = {
1038         .read = read_file_recv,
1039         .open = ath9k_debugfs_open,
1040         .owner = THIS_MODULE,
1041         .llseek = default_llseek,
1042 };
1043
1044 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
1045                                 size_t count, loff_t *ppos)
1046 {
1047         struct ath_softc *sc = file->private_data;
1048         char buf[32];
1049         unsigned int len;
1050
1051         len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
1052         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1053 }
1054
1055 static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
1056                              size_t count, loff_t *ppos)
1057 {
1058         struct ath_softc *sc = file->private_data;
1059         unsigned long regidx;
1060         char buf[32];
1061         ssize_t len;
1062
1063         len = min(count, sizeof(buf) - 1);
1064         if (copy_from_user(buf, user_buf, len))
1065                 return -EFAULT;
1066
1067         buf[len] = '\0';
1068         if (strict_strtoul(buf, 0, &regidx))
1069                 return -EINVAL;
1070
1071         sc->debug.regidx = regidx;
1072         return count;
1073 }
1074
1075 static const struct file_operations fops_regidx = {
1076         .read = read_file_regidx,
1077         .write = write_file_regidx,
1078         .open = ath9k_debugfs_open,
1079         .owner = THIS_MODULE,
1080         .llseek = default_llseek,
1081 };
1082
1083 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
1084                              size_t count, loff_t *ppos)
1085 {
1086         struct ath_softc *sc = file->private_data;
1087         struct ath_hw *ah = sc->sc_ah;
1088         char buf[32];
1089         unsigned int len;
1090         u32 regval;
1091
1092         ath9k_ps_wakeup(sc);
1093         regval = REG_READ_D(ah, sc->debug.regidx);
1094         ath9k_ps_restore(sc);
1095         len = sprintf(buf, "0x%08x\n", regval);
1096         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1097 }
1098
1099 static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
1100                              size_t count, loff_t *ppos)
1101 {
1102         struct ath_softc *sc = file->private_data;
1103         struct ath_hw *ah = sc->sc_ah;
1104         unsigned long regval;
1105         char buf[32];
1106         ssize_t len;
1107
1108         len = min(count, sizeof(buf) - 1);
1109         if (copy_from_user(buf, user_buf, len))
1110                 return -EFAULT;
1111
1112         buf[len] = '\0';
1113         if (strict_strtoul(buf, 0, &regval))
1114                 return -EINVAL;
1115
1116         ath9k_ps_wakeup(sc);
1117         REG_WRITE_D(ah, sc->debug.regidx, regval);
1118         ath9k_ps_restore(sc);
1119         return count;
1120 }
1121
1122 static const struct file_operations fops_regval = {
1123         .read = read_file_regval,
1124         .write = write_file_regval,
1125         .open = ath9k_debugfs_open,
1126         .owner = THIS_MODULE,
1127         .llseek = default_llseek,
1128 };
1129
1130 #define REGDUMP_LINE_SIZE       20
1131
1132 static int open_file_regdump(struct inode *inode, struct file *file)
1133 {
1134         struct ath_softc *sc = inode->i_private;
1135         unsigned int len = 0;
1136         u8 *buf;
1137         int i;
1138         unsigned long num_regs, regdump_len, max_reg_offset;
1139
1140         max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x16bd4 : 0xb500;
1141         num_regs = max_reg_offset / 4 + 1;
1142         regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
1143         buf = vmalloc(regdump_len);
1144         if (!buf)
1145                 return -ENOMEM;
1146
1147         ath9k_ps_wakeup(sc);
1148         for (i = 0; i < num_regs; i++)
1149                 len += scnprintf(buf + len, regdump_len - len,
1150                         "0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
1151         ath9k_ps_restore(sc);
1152
1153         file->private_data = buf;
1154
1155         return 0;
1156 }
1157
1158 static const struct file_operations fops_regdump = {
1159         .open = open_file_regdump,
1160         .read = ath9k_debugfs_read_buf,
1161         .release = ath9k_debugfs_release_buf,
1162         .owner = THIS_MODULE,
1163         .llseek = default_llseek,/* read accesses f_pos */
1164 };
1165
1166 static ssize_t read_file_dump_nfcal(struct file *file, char __user *user_buf,
1167                                     size_t count, loff_t *ppos)
1168 {
1169         struct ath_softc *sc = file->private_data;
1170         struct ath_hw *ah = sc->sc_ah;
1171         struct ath9k_nfcal_hist *h = sc->caldata.nfCalHist;
1172         struct ath_common *common = ath9k_hw_common(ah);
1173         struct ieee80211_conf *conf = &common->hw->conf;
1174         u32 len = 0, size = 1500;
1175         u32 i, j;
1176         ssize_t retval = 0;
1177         char *buf;
1178         u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
1179         u8 nread;
1180
1181         buf = kzalloc(size, GFP_KERNEL);
1182         if (!buf)
1183                 return -ENOMEM;
1184
1185         len += snprintf(buf + len, size - len,
1186                         "Channel Noise Floor : %d\n", ah->noise);
1187         len += snprintf(buf + len, size - len,
1188                         "Chain | privNF | # Readings | NF Readings\n");
1189         for (i = 0; i < NUM_NF_READINGS; i++) {
1190                 if (!(chainmask & (1 << i)) ||
1191                     ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
1192                         continue;
1193
1194                 nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount;
1195                 len += snprintf(buf + len, size - len, " %d\t %d\t %d\t\t",
1196                                 i, h[i].privNF, nread);
1197                 for (j = 0; j < nread; j++)
1198                         len += snprintf(buf + len, size - len,
1199                                         " %d", h[i].nfCalBuffer[j]);
1200                 len += snprintf(buf + len, size - len, "\n");
1201         }
1202
1203         if (len > size)
1204                 len = size;
1205
1206         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1207         kfree(buf);
1208
1209         return retval;
1210 }
1211
1212 static const struct file_operations fops_dump_nfcal = {
1213         .read = read_file_dump_nfcal,
1214         .open = ath9k_debugfs_open,
1215         .owner = THIS_MODULE,
1216         .llseek = default_llseek,
1217 };
1218
1219 static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
1220                                      size_t count, loff_t *ppos)
1221 {
1222         struct ath_softc *sc = file->private_data;
1223         struct ath_hw *ah = sc->sc_ah;
1224         u32 len = 0, size = 1500;
1225         ssize_t retval = 0;
1226         char *buf;
1227
1228         buf = kzalloc(size, GFP_KERNEL);
1229         if (!buf)
1230                 return -ENOMEM;
1231
1232         len = ah->eep_ops->dump_eeprom(ah, true, buf, len, size);
1233
1234         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1235         kfree(buf);
1236
1237         return retval;
1238 }
1239
1240 static const struct file_operations fops_base_eeprom = {
1241         .read = read_file_base_eeprom,
1242         .open = ath9k_debugfs_open,
1243         .owner = THIS_MODULE,
1244         .llseek = default_llseek,
1245 };
1246
1247 static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf,
1248                                       size_t count, loff_t *ppos)
1249 {
1250         struct ath_softc *sc = file->private_data;
1251         struct ath_hw *ah = sc->sc_ah;
1252         u32 len = 0, size = 6000;
1253         char *buf;
1254         size_t retval;
1255
1256         buf = kzalloc(size, GFP_KERNEL);
1257         if (buf == NULL)
1258                 return -ENOMEM;
1259
1260         len = ah->eep_ops->dump_eeprom(ah, false, buf, len, size);
1261
1262         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1263         kfree(buf);
1264
1265         return retval;
1266 }
1267
1268 static const struct file_operations fops_modal_eeprom = {
1269         .read = read_file_modal_eeprom,
1270         .open = ath9k_debugfs_open,
1271         .owner = THIS_MODULE,
1272         .llseek = default_llseek,
1273 };
1274
1275 int ath9k_init_debug(struct ath_hw *ah)
1276 {
1277         struct ath_common *common = ath9k_hw_common(ah);
1278         struct ath_softc *sc = (struct ath_softc *) common->priv;
1279
1280         sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
1281                                                    sc->hw->wiphy->debugfsdir);
1282         if (!sc->debug.debugfs_phy)
1283                 return -ENOMEM;
1284
1285 #ifdef CONFIG_ATH_DEBUG
1286         debugfs_create_file("debug", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1287                             sc, &fops_debug);
1288 #endif
1289         debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
1290                             &fops_dma);
1291         debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc,
1292                             &fops_interrupt);
1293         debugfs_create_file("wiphy", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1294                             sc, &fops_wiphy);
1295         debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc,
1296                             &fops_xmit);
1297         debugfs_create_file("stations", S_IRUSR, sc->debug.debugfs_phy, sc,
1298                             &fops_stations);
1299         debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc,
1300                             &fops_misc);
1301         debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc,
1302                             &fops_recv);
1303         debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
1304                             sc->debug.debugfs_phy, sc, &fops_rx_chainmask);
1305         debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
1306                             sc->debug.debugfs_phy, sc, &fops_tx_chainmask);
1307         debugfs_create_file("disable_ani", S_IRUSR | S_IWUSR,
1308                             sc->debug.debugfs_phy, sc, &fops_disable_ani);
1309         debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1310                             sc, &fops_regidx);
1311         debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
1312                             sc, &fops_regval);
1313         debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
1314                             sc->debug.debugfs_phy,
1315                             &ah->config.cwm_ignore_extcca);
1316         debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc,
1317                             &fops_regdump);
1318         debugfs_create_file("dump_nfcal", S_IRUSR, sc->debug.debugfs_phy, sc,
1319                             &fops_dump_nfcal);
1320         debugfs_create_file("base_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
1321                             &fops_base_eeprom);
1322         debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
1323                             &fops_modal_eeprom);
1324
1325         debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
1326                            sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
1327
1328         debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
1329                            sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
1330
1331         sc->debug.regidx = 0;
1332         return 0;
1333 }