drivers/net/wireless/ath/ath5k/debug.c

   1 /*
   2  * Copyright (c) 2007-2008 Bruno Randolf <bruno@thinktube.com>
   3  *
   4  *  This file is free software: you may copy, redistribute and/or modify it
   5  *  under the terms of the GNU General Public License as published by the
   6  *  Free Software Foundation, either version 2 of the License, or (at your
   7  *  option) any later version.
   8  *
   9  *  This file is distributed in the hope that it will be useful, but
  10  *  WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  *  General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU General Public License
  15  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  *
  18  * This file incorporates work covered by the following copyright and
  19  * permission notice:
  20  *
  21  * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
  22  * Copyright (c) 2004-2005 Atheros Communications, Inc.
  23  * Copyright (c) 2006 Devicescape Software, Inc.
  24  * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
  25  * Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
  26  *
  27  * All rights reserved.
  28  *
  29  * Redistribution and use in source and binary forms, with or without
  30  * modification, are permitted provided that the following conditions
  31  * are met:
  32  * 1. Redistributions of source code must retain the above copyright
  33  *    notice, this list of conditions and the following disclaimer,
  34  *    without modification.
  35  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  36  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
  37  *    redistribution must be conditioned upon including a substantially
  38  *    similar Disclaimer requirement for further binary redistribution.
  39  * 3. Neither the names of the above-listed copyright holders nor the names
  40  *    of any contributors may be used to endorse or promote products derived
  41  *    from this software without specific prior written permission.
  42  *
  43  * Alternatively, this software may be distributed under the terms of the
  44  * GNU General Public License ("GPL") version 2 as published by the Free
  45  * Software Foundation.
  46  *
  47  * NO WARRANTY
  48  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  49  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  50  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
  51  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
  52  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
  53  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  54  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  55  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  56  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  57  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  58  * THE POSSIBILITY OF SUCH DAMAGES.
  59  */
  60
  61 #include "base.h"
  62 #include "debug.h"
  63
  64 static unsigned int ath5k_debug;
  65 module_param_named(debug, ath5k_debug, uint, 0);
  66
  67
  68 #ifdef CONFIG_ATH5K_DEBUG
  69
  70 #include <linux/seq_file.h>
  71 #include "reg.h"
  72 #include "ani.h"
  73
  74 static int ath5k_debugfs_open(struct inode *inode, struct file *file)
  75 {
  76         file->private_data = inode->i_private;
  77         return 0;
  78 }
  79
  80
  81 /* debugfs: registers */
  82
  83 struct reg {
  84         const char *name;
  85         int addr;
  86 };
  87
  88 #define REG_STRUCT_INIT(r) { #r, r }
  89
  90 /* just a few random registers, might want to add more */
  91 static const struct reg regs[] = {
  92         REG_STRUCT_INIT(AR5K_CR),
  93         REG_STRUCT_INIT(AR5K_RXDP),
  94         REG_STRUCT_INIT(AR5K_CFG),
  95         REG_STRUCT_INIT(AR5K_IER),
  96         REG_STRUCT_INIT(AR5K_BCR),
  97         REG_STRUCT_INIT(AR5K_RTSD0),
  98         REG_STRUCT_INIT(AR5K_RTSD1),
  99         REG_STRUCT_INIT(AR5K_TXCFG),
 100         REG_STRUCT_INIT(AR5K_RXCFG),
 101         REG_STRUCT_INIT(AR5K_RXJLA),
 102         REG_STRUCT_INIT(AR5K_MIBC),
 103         REG_STRUCT_INIT(AR5K_TOPS),
 104         REG_STRUCT_INIT(AR5K_RXNOFRM),
 105         REG_STRUCT_INIT(AR5K_TXNOFRM),
 106         REG_STRUCT_INIT(AR5K_RPGTO),
 107         REG_STRUCT_INIT(AR5K_RFCNT),
 108         REG_STRUCT_INIT(AR5K_MISC),
 109         REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT),
 110         REG_STRUCT_INIT(AR5K_ISR),
 111         REG_STRUCT_INIT(AR5K_PISR),
 112         REG_STRUCT_INIT(AR5K_SISR0),
 113         REG_STRUCT_INIT(AR5K_SISR1),
 114         REG_STRUCT_INIT(AR5K_SISR2),
 115         REG_STRUCT_INIT(AR5K_SISR3),
 116         REG_STRUCT_INIT(AR5K_SISR4),
 117         REG_STRUCT_INIT(AR5K_IMR),
 118         REG_STRUCT_INIT(AR5K_PIMR),
 119         REG_STRUCT_INIT(AR5K_SIMR0),
 120         REG_STRUCT_INIT(AR5K_SIMR1),
 121         REG_STRUCT_INIT(AR5K_SIMR2),
 122         REG_STRUCT_INIT(AR5K_SIMR3),
 123         REG_STRUCT_INIT(AR5K_SIMR4),
 124         REG_STRUCT_INIT(AR5K_DCM_ADDR),
 125         REG_STRUCT_INIT(AR5K_DCCFG),
 126         REG_STRUCT_INIT(AR5K_CCFG),
 127         REG_STRUCT_INIT(AR5K_CPC0),
 128         REG_STRUCT_INIT(AR5K_CPC1),
 129         REG_STRUCT_INIT(AR5K_CPC2),
 130         REG_STRUCT_INIT(AR5K_CPC3),
 131         REG_STRUCT_INIT(AR5K_CPCOVF),
 132         REG_STRUCT_INIT(AR5K_RESET_CTL),
 133         REG_STRUCT_INIT(AR5K_SLEEP_CTL),
 134         REG_STRUCT_INIT(AR5K_INTPEND),
 135         REG_STRUCT_INIT(AR5K_SFR),
 136         REG_STRUCT_INIT(AR5K_PCICFG),
 137         REG_STRUCT_INIT(AR5K_GPIOCR),
 138         REG_STRUCT_INIT(AR5K_GPIODO),
 139         REG_STRUCT_INIT(AR5K_SREV),
 140 };
 141
 142 static void *reg_start(struct seq_file *seq, loff_t *pos)
 143 {
 144         return *pos < ARRAY_SIZE(regs) ? (void *)&regs[*pos] : NULL;
 145 }
 146
 147 static void reg_stop(struct seq_file *seq, void *p)
 148 {
 149         /* nothing to do */
 150 }
 151
 152 static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)
 153 {
 154         ++*pos;
 155         return *pos < ARRAY_SIZE(regs) ? (void *)&regs[*pos] : NULL;
 156 }
 157
 158 static int reg_show(struct seq_file *seq, void *p)
 159 {
 160         struct ath5k_softc *sc = seq->private;
 161         struct reg *r = p;
 162         seq_printf(seq, "%-25s0x%08x\n", r->name,
 163                 ath5k_hw_reg_read(sc->ah, r->addr));
 164         return 0;
 165 }
 166
 167 static const struct seq_operations register_seq_ops = {
 168         .start = reg_start,
 169         .next  = reg_next,
 170         .stop  = reg_stop,
 171         .show  = reg_show
 172 };
 173
 174 static int open_file_registers(struct inode *inode, struct file *file)
 175 {
 176         struct seq_file *s;
 177         int res;
 178         res = seq_open(file, &register_seq_ops);
 179         if (res == 0) {
 180                 s = file->private_data;
 181                 s->private = inode->i_private;
 182         }
 183         return res;
 184 }
 185
 186 static const struct file_operations fops_registers = {
 187         .open = open_file_registers,
 188         .read    = seq_read,
 189         .llseek  = seq_lseek,
 190         .release = seq_release,
 191         .owner = THIS_MODULE,
 192 };
 193
 194
 195 /* debugfs: beacons */
 196
 197 static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
 198                                    size_t count, loff_t *ppos)
 199 {
 200         struct ath5k_softc *sc = file->private_data;
 201         struct ath5k_hw *ah = sc->ah;
 202         char buf[500];
 203         unsigned int len = 0;
 204         unsigned int v;
 205         u64 tsf;
 206
 207         v = ath5k_hw_reg_read(sc->ah, AR5K_BEACON);
 208         len += snprintf(buf+len, sizeof(buf)-len,
 209                 "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
 210                 "AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,
 211                 (v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);
 212
 213         len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\n",
 214                 "AR5K_LAST_TSTP", ath5k_hw_reg_read(sc->ah, AR5K_LAST_TSTP));
 215
 216         len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\n\n",
 217                 "AR5K_BEACON_CNT", ath5k_hw_reg_read(sc->ah, AR5K_BEACON_CNT));
 218
 219         v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER0);
 220         len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n",
 221                 "AR5K_TIMER0 (TBTT)", v, v);
 222
 223         v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER1);
 224         len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n",
 225                 "AR5K_TIMER1 (DMA)", v, v >> 3);
 226
 227         v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER2);
 228         len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n",
 229                 "AR5K_TIMER2 (SWBA)", v, v >> 3);
 230
 231         v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER3);
 232         len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n",
 233                 "AR5K_TIMER3 (ATIM)", v, v);
 234
 235         tsf = ath5k_hw_get_tsf64(sc->ah);
 236         len += snprintf(buf+len, sizeof(buf)-len,
 237                 "TSF\t\t0x%016llx\tTU: %08x\n",
 238                 (unsigned long long)tsf, TSF_TO_TU(tsf));
 239
 240         if (len > sizeof(buf))
 241                 len = sizeof(buf);
 242
 243         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 244 }
 245
 246 static ssize_t write_file_beacon(struct file *file,
 247                                  const char __user *userbuf,
 248                                  size_t count, loff_t *ppos)
 249 {
 250         struct ath5k_softc *sc = file->private_data;
 251         struct ath5k_hw *ah = sc->ah;
 252         char buf[20];
 253
 254         if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
 255                 return -EFAULT;
 256
 257         if (strncmp(buf, "disable", 7) == 0) {
 258                 AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
 259                 printk(KERN_INFO "debugfs disable beacons\n");
 260         } else if (strncmp(buf, "enable", 6) == 0) {
 261                 AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
 262                 printk(KERN_INFO "debugfs enable beacons\n");
 263         }
 264         return count;
 265 }
 266
 267 static const struct file_operations fops_beacon = {
 268         .read = read_file_beacon,
 269         .write = write_file_beacon,
 270         .open = ath5k_debugfs_open,
 271         .owner = THIS_MODULE,
 272         .llseek = default_llseek,
 273 };
 274
 275
 276 /* debugfs: reset */
 277
 278 static ssize_t write_file_reset(struct file *file,
 279                                  const char __user *userbuf,
 280                                  size_t count, loff_t *ppos)
 281 {
 282         struct ath5k_softc *sc = file->private_data;
 283         ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
 284         ieee80211_queue_work(sc->hw, &sc->reset_work);
 285         return count;
 286 }
 287
 288 static const struct file_operations fops_reset = {
 289         .write = write_file_reset,
 290         .open = ath5k_debugfs_open,
 291         .owner = THIS_MODULE,
 292         .llseek = noop_llseek,
 293 };
 294
 295
 296 /* debugfs: debug level */
 297
 298 static const struct {
 299         enum ath5k_debug_level level;
 300         const char *name;
 301         const char *desc;
 302 } dbg_info[] = {
 303         { ATH5K_DEBUG_RESET,    "reset",        "reset and initialization" },
 304         { ATH5K_DEBUG_INTR,     "intr",         "interrupt handling" },
 305         { ATH5K_DEBUG_MODE,     "mode",         "mode init/setup" },
 306         { ATH5K_DEBUG_XMIT,     "xmit",         "basic xmit operation" },
 307         { ATH5K_DEBUG_BEACON,   "beacon",       "beacon handling" },
 308         { ATH5K_DEBUG_CALIBRATE, "calib",       "periodic calibration" },
 309         { ATH5K_DEBUG_TXPOWER,  "txpower",      "transmit power setting" },
 310         { ATH5K_DEBUG_LED,      "led",          "LED management" },
 311         { ATH5K_DEBUG_DUMP_RX,  "dumprx",       "print received skb content" },
 312         { ATH5K_DEBUG_DUMP_TX,  "dumptx",       "print transmit skb content" },
 313         { ATH5K_DEBUG_DUMPBANDS, "dumpbands",   "dump bands" },
 314         { ATH5K_DEBUG_DMA,      "dma",          "dma start/stop" },
 315         { ATH5K_DEBUG_ANI,      "ani",          "adaptive noise immunity" },
 316         { ATH5K_DEBUG_DESC,     "desc",         "descriptor chains" },
 317         { ATH5K_DEBUG_ANY,      "all",          "show all debug levels" },
 318 };
 319
 320 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
 321                                    size_t count, loff_t *ppos)
 322 {
 323         struct ath5k_softc *sc = file->private_data;
 324         char buf[700];
 325         unsigned int len = 0;
 326         unsigned int i;
 327
 328         len += snprintf(buf+len, sizeof(buf)-len,
 329                 "DEBUG LEVEL: 0x%08x\n\n", sc->debug.level);
 330
 331         for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
 332                 len += snprintf(buf+len, sizeof(buf)-len,
 333                         "%10s %c 0x%08x - %s\n", dbg_info[i].name,
 334                         sc->debug.level & dbg_info[i].level ? '+' : ' ',
 335                         dbg_info[i].level, dbg_info[i].desc);
 336         }
 337         len += snprintf(buf+len, sizeof(buf)-len,
 338                 "%10s %c 0x%08x - %s\n", dbg_info[i].name,
 339                 sc->debug.level == dbg_info[i].level ? '+' : ' ',
 340                 dbg_info[i].level, dbg_info[i].desc);
 341
 342         if (len > sizeof(buf))
 343                 len = sizeof(buf);
 344
 345         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 346 }
 347
 348 static ssize_t write_file_debug(struct file *file,
 349                                  const char __user *userbuf,
 350                                  size_t count, loff_t *ppos)
 351 {
 352         struct ath5k_softc *sc = file->private_data;
 353         unsigned int i;
 354         char buf[20];
 355
 356         if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
 357                 return -EFAULT;
 358
 359         for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
 360                 if (strncmp(buf, dbg_info[i].name,
 361                                         strlen(dbg_info[i].name)) == 0) {
 362                         sc->debug.level ^= dbg_info[i].level; /* toggle bit */
 363                         break;
 364                 }
 365         }
 366         return count;
 367 }
 368
 369 static const struct file_operations fops_debug = {
 370         .read = read_file_debug,
 371         .write = write_file_debug,
 372         .open = ath5k_debugfs_open,
 373         .owner = THIS_MODULE,
 374         .llseek = default_llseek,
 375 };
 376
 377
 378 /* debugfs: antenna */
 379
 380 static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
 381                                    size_t count, loff_t *ppos)
 382 {
 383         struct ath5k_softc *sc = file->private_data;
 384         char buf[700];
 385         unsigned int len = 0;
 386         unsigned int i;
 387         unsigned int v;
 388
 389         len += snprintf(buf+len, sizeof(buf)-len, "antenna mode\t%d\n",
 390                 sc->ah->ah_ant_mode);
 391         len += snprintf(buf+len, sizeof(buf)-len, "default antenna\t%d\n",
 392                 sc->ah->ah_def_ant);
 393         len += snprintf(buf+len, sizeof(buf)-len, "tx antenna\t%d\n",
 394                 sc->ah->ah_tx_ant);
 395
 396         len += snprintf(buf+len, sizeof(buf)-len, "\nANTENNA\t\tRX\tTX\n");
 397         for (i = 1; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) {
 398                 len += snprintf(buf+len, sizeof(buf)-len,
 399                         "[antenna %d]\t%d\t%d\n",
 400                         i, sc->stats.antenna_rx[i], sc->stats.antenna_tx[i]);
 401         }
 402         len += snprintf(buf+len, sizeof(buf)-len, "[invalid]\t%d\t%d\n",
 403                         sc->stats.antenna_rx[0], sc->stats.antenna_tx[0]);
 404
 405         v = ath5k_hw_reg_read(sc->ah, AR5K_DEFAULT_ANTENNA);
 406         len += snprintf(buf+len, sizeof(buf)-len,
 407                         "\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
 408
 409         v = ath5k_hw_reg_read(sc->ah, AR5K_STA_ID1);
 410         len += snprintf(buf+len, sizeof(buf)-len,
 411                 "AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
 412                 (v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
 413         len += snprintf(buf+len, sizeof(buf)-len,
 414                 "AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
 415                 (v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
 416         len += snprintf(buf+len, sizeof(buf)-len,
 417                 "AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
 418                 (v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
 419         len += snprintf(buf+len, sizeof(buf)-len,
 420                 "AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
 421                 (v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
 422
 423         v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_AGCCTL);
 424         len += snprintf(buf+len, sizeof(buf)-len,
 425                 "\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
 426                 (v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
 427
 428         v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_RESTART);
 429         len += snprintf(buf+len, sizeof(buf)-len,
 430                 "AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
 431                 (v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
 432
 433         v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_FAST_ANT_DIV);
 434         len += snprintf(buf+len, sizeof(buf)-len,
 435                 "AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
 436                 (v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
 437
 438         v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
 439         len += snprintf(buf+len, sizeof(buf)-len,
 440                         "\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
 441         v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
 442         len += snprintf(buf+len, sizeof(buf)-len,
 443                         "AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
 444
 445         if (len > sizeof(buf))
 446                 len = sizeof(buf);
 447
 448         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 449 }
 450
 451 static ssize_t write_file_antenna(struct file *file,
 452                                  const char __user *userbuf,
 453                                  size_t count, loff_t *ppos)
 454 {
 455         struct ath5k_softc *sc = file->private_data;
 456         unsigned int i;
 457         char buf[20];
 458
 459         if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
 460                 return -EFAULT;
 461
 462         if (strncmp(buf, "diversity", 9) == 0) {
 463                 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_DEFAULT);
 464                 printk(KERN_INFO "ath5k debug: enable diversity\n");
 465         } else if (strncmp(buf, "fixed-a", 7) == 0) {
 466                 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_A);
 467                 printk(KERN_INFO "ath5k debugfs: fixed antenna A\n");
 468         } else if (strncmp(buf, "fixed-b", 7) == 0) {
 469                 ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_B);
 470                 printk(KERN_INFO "ath5k debug: fixed antenna B\n");
 471         } else if (strncmp(buf, "clear", 5) == 0) {
 472                 for (i = 0; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) {
 473                         sc->stats.antenna_rx[i] = 0;
 474                         sc->stats.antenna_tx[i] = 0;
 475                 }
 476                 printk(KERN_INFO "ath5k debug: cleared antenna stats\n");
 477         }
 478         return count;
 479 }
 480
 481 static const struct file_operations fops_antenna = {
 482         .read = read_file_antenna,
 483         .write = write_file_antenna,
 484         .open = ath5k_debugfs_open,
 485         .owner = THIS_MODULE,
 486         .llseek = default_llseek,
 487 };
 488
 489 /* debugfs: misc */
 490
 491 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
 492                                    size_t count, loff_t *ppos)
 493 {
 494         struct ath5k_softc *sc = file->private_data;
 495         char buf[700];
 496         unsigned int len = 0;
 497         u32 filt = ath5k_hw_get_rx_filter(sc->ah);
 498
 499         len += snprintf(buf+len, sizeof(buf)-len, "bssid-mask: %pM\n",
 500                         sc->bssidmask);
 501         len += snprintf(buf+len, sizeof(buf)-len, "filter-flags: 0x%x ",
 502                         filt);
 503         if (filt & AR5K_RX_FILTER_UCAST)
 504                 len += snprintf(buf+len, sizeof(buf)-len, " UCAST");
 505         if (filt & AR5K_RX_FILTER_MCAST)
 506                 len += snprintf(buf+len, sizeof(buf)-len, " MCAST");
 507         if (filt & AR5K_RX_FILTER_BCAST)
 508                 len += snprintf(buf+len, sizeof(buf)-len, " BCAST");
 509         if (filt & AR5K_RX_FILTER_CONTROL)
 510                 len += snprintf(buf+len, sizeof(buf)-len, " CONTROL");
 511         if (filt & AR5K_RX_FILTER_BEACON)
 512                 len += snprintf(buf+len, sizeof(buf)-len, " BEACON");
 513         if (filt & AR5K_RX_FILTER_PROM)
 514                 len += snprintf(buf+len, sizeof(buf)-len, " PROM");
 515         if (filt & AR5K_RX_FILTER_XRPOLL)
 516                 len += snprintf(buf+len, sizeof(buf)-len, " XRPOLL");
 517         if (filt & AR5K_RX_FILTER_PROBEREQ)
 518                 len += snprintf(buf+len, sizeof(buf)-len, " PROBEREQ");
 519         if (filt & AR5K_RX_FILTER_PHYERR_5212)
 520                 len += snprintf(buf+len, sizeof(buf)-len, " PHYERR-5212");
 521         if (filt & AR5K_RX_FILTER_RADARERR_5212)
 522                 len += snprintf(buf+len, sizeof(buf)-len, " RADARERR-5212");
 523         if (filt & AR5K_RX_FILTER_PHYERR_5211)
 524                 snprintf(buf+len, sizeof(buf)-len, " PHYERR-5211");
 525         if (filt & AR5K_RX_FILTER_RADARERR_5211)
 526                 len += snprintf(buf+len, sizeof(buf)-len, " RADARERR-5211");
 527
 528         len += snprintf(buf+len, sizeof(buf)-len, "\nopmode: %s (%d)\n",
 529                         ath_opmode_to_string(sc->opmode), sc->opmode);
 530
 531         if (len > sizeof(buf))
 532                 len = sizeof(buf);
 533
 534         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 535 }
 536
 537 static const struct file_operations fops_misc = {
 538         .read = read_file_misc,
 539         .open = ath5k_debugfs_open,
 540         .owner = THIS_MODULE,
 541 };
 542
 543
 544 /* debugfs: frameerrors */
 545
 546 static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
 547                                    size_t count, loff_t *ppos)
 548 {
 549         struct ath5k_softc *sc = file->private_data;
 550         struct ath5k_statistics *st = &sc->stats;
 551         char buf[700];
 552         unsigned int len = 0;
 553         int i;
 554
 555         len += snprintf(buf+len, sizeof(buf)-len,
 556                         "RX\n---------------------\n");
 557         len += snprintf(buf+len, sizeof(buf)-len, "CRC\t%u\t(%u%%)\n",
 558                         st->rxerr_crc,
 559                         st->rx_all_count > 0 ?
 560                                 st->rxerr_crc*100/st->rx_all_count : 0);
 561         len += snprintf(buf+len, sizeof(buf)-len, "PHY\t%u\t(%u%%)\n",
 562                         st->rxerr_phy,
 563                         st->rx_all_count > 0 ?
 564                                 st->rxerr_phy*100/st->rx_all_count : 0);
 565         for (i = 0; i < 32; i++) {
 566                 if (st->rxerr_phy_code[i])
 567                         len += snprintf(buf+len, sizeof(buf)-len,
 568                                 " phy_err[%u]\t%u\n",
 569                                 i, st->rxerr_phy_code[i]);
 570         }
 571
 572         len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%u\t(%u%%)\n",
 573                         st->rxerr_fifo,
 574                         st->rx_all_count > 0 ?
 575                                 st->rxerr_fifo*100/st->rx_all_count : 0);
 576         len += snprintf(buf+len, sizeof(buf)-len, "decrypt\t%u\t(%u%%)\n",
 577                         st->rxerr_decrypt,
 578                         st->rx_all_count > 0 ?
 579                                 st->rxerr_decrypt*100/st->rx_all_count : 0);
 580         len += snprintf(buf+len, sizeof(buf)-len, "MIC\t%u\t(%u%%)\n",
 581                         st->rxerr_mic,
 582                         st->rx_all_count > 0 ?
 583                                 st->rxerr_mic*100/st->rx_all_count : 0);
 584         len += snprintf(buf+len, sizeof(buf)-len, "process\t%u\t(%u%%)\n",
 585                         st->rxerr_proc,
 586                         st->rx_all_count > 0 ?
 587                                 st->rxerr_proc*100/st->rx_all_count : 0);
 588         len += snprintf(buf+len, sizeof(buf)-len, "jumbo\t%u\t(%u%%)\n",
 589                         st->rxerr_jumbo,
 590                         st->rx_all_count > 0 ?
 591                                 st->rxerr_jumbo*100/st->rx_all_count : 0);
 592         len += snprintf(buf+len, sizeof(buf)-len, "[RX all\t%u]\n",
 593                         st->rx_all_count);
 594         len += snprintf(buf+len, sizeof(buf)-len, "RX-all-bytes\t%u\n",
 595                         st->rx_bytes_count);
 596
 597         len += snprintf(buf+len, sizeof(buf)-len,
 598                         "\nTX\n---------------------\n");
 599         len += snprintf(buf+len, sizeof(buf)-len, "retry\t%u\t(%u%%)\n",
 600                         st->txerr_retry,
 601                         st->tx_all_count > 0 ?
 602                                 st->txerr_retry*100/st->tx_all_count : 0);
 603         len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%u\t(%u%%)\n",
 604                         st->txerr_fifo,
 605                         st->tx_all_count > 0 ?
 606                                 st->txerr_fifo*100/st->tx_all_count : 0);
 607         len += snprintf(buf+len, sizeof(buf)-len, "filter\t%u\t(%u%%)\n",
 608                         st->txerr_filt,
 609                         st->tx_all_count > 0 ?
 610                                 st->txerr_filt*100/st->tx_all_count : 0);
 611         len += snprintf(buf+len, sizeof(buf)-len, "[TX all\t%u]\n",
 612                         st->tx_all_count);
 613         len += snprintf(buf+len, sizeof(buf)-len, "TX-all-bytes\t%u\n",
 614                         st->tx_bytes_count);
 615
 616         if (len > sizeof(buf))
 617                 len = sizeof(buf);
 618
 619         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 620 }
 621
 622 static ssize_t write_file_frameerrors(struct file *file,
 623                                  const char __user *userbuf,
 624                                  size_t count, loff_t *ppos)
 625 {
 626         struct ath5k_softc *sc = file->private_data;
 627         struct ath5k_statistics *st = &sc->stats;
 628         char buf[20];
 629
 630         if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
 631                 return -EFAULT;
 632
 633         if (strncmp(buf, "clear", 5) == 0) {
 634                 st->rxerr_crc = 0;
 635                 st->rxerr_phy = 0;
 636                 st->rxerr_fifo = 0;
 637                 st->rxerr_decrypt = 0;
 638                 st->rxerr_mic = 0;
 639                 st->rxerr_proc = 0;
 640                 st->rxerr_jumbo = 0;
 641                 st->rx_all_count = 0;
 642                 st->txerr_retry = 0;
 643                 st->txerr_fifo = 0;
 644                 st->txerr_filt = 0;
 645                 st->tx_all_count = 0;
 646                 printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n");
 647         }
 648         return count;
 649 }
 650
 651 static const struct file_operations fops_frameerrors = {
 652         .read = read_file_frameerrors,
 653         .write = write_file_frameerrors,
 654         .open = ath5k_debugfs_open,
 655         .owner = THIS_MODULE,
 656         .llseek = default_llseek,
 657 };
 658
 659
 660 /* debugfs: ani */
 661
 662 static ssize_t read_file_ani(struct file *file, char __user *user_buf,
 663                                    size_t count, loff_t *ppos)
 664 {
 665         struct ath5k_softc *sc = file->private_data;
 666         struct ath5k_statistics *st = &sc->stats;
 667         struct ath5k_ani_state *as = &sc->ani_state;
 668
 669         char buf[700];
 670         unsigned int len = 0;
 671
 672         len += snprintf(buf+len, sizeof(buf)-len,
 673                         "HW has PHY error counters:\t%s\n",
 674                         sc->ah->ah_capabilities.cap_has_phyerr_counters ?
 675                         "yes" : "no");
 676         len += snprintf(buf+len, sizeof(buf)-len,
 677                         "HW max spur immunity level:\t%d\n",
 678                         as->max_spur_level);
 679         len += snprintf(buf+len, sizeof(buf)-len,
 680                 "\nANI state\n--------------------------------------------\n");
 681         len += snprintf(buf+len, sizeof(buf)-len, "operating mode:\t\t\t");
 682         switch (as->ani_mode) {
 683         case ATH5K_ANI_MODE_OFF:
 684                 len += snprintf(buf+len, sizeof(buf)-len, "OFF\n");
 685                 break;
 686         case ATH5K_ANI_MODE_MANUAL_LOW:
 687                 len += snprintf(buf+len, sizeof(buf)-len,
 688                         "MANUAL LOW\n");
 689                 break;
 690         case ATH5K_ANI_MODE_MANUAL_HIGH:
 691                 len += snprintf(buf+len, sizeof(buf)-len,
 692                         "MANUAL HIGH\n");
 693                 break;
 694         case ATH5K_ANI_MODE_AUTO:
 695                 len += snprintf(buf+len, sizeof(buf)-len, "AUTO\n");
 696                 break;
 697         default:
 698                 len += snprintf(buf+len, sizeof(buf)-len,
 699                         "??? (not good)\n");
 700                 break;
 701         }
 702         len += snprintf(buf+len, sizeof(buf)-len,
 703                         "noise immunity level:\t\t%d\n",
 704                         as->noise_imm_level);
 705         len += snprintf(buf+len, sizeof(buf)-len,
 706                         "spur immunity level:\t\t%d\n",
 707                         as->spur_level);
 708         len += snprintf(buf+len, sizeof(buf)-len, "firstep level:\t\t\t%d\n",
 709                         as->firstep_level);
 710         len += snprintf(buf+len, sizeof(buf)-len,
 711                         "OFDM weak signal detection:\t%s\n",
 712                         as->ofdm_weak_sig ? "on" : "off");
 713         len += snprintf(buf+len, sizeof(buf)-len,
 714                         "CCK weak signal detection:\t%s\n",
 715                         as->cck_weak_sig ? "on" : "off");
 716
 717         len += snprintf(buf+len, sizeof(buf)-len,
 718                         "\nMIB INTERRUPTS:\t\t%u\n",
 719                         st->mib_intr);
 720         len += snprintf(buf+len, sizeof(buf)-len,
 721                         "beacon RSSI average:\t%d\n",
 722                         (int)ewma_read(&sc->ah->ah_beacon_rssi_avg));
 723
 724 #define CC_PRINT(_struct, _field) \
 725         _struct._field, \
 726         _struct.cycles > 0 ? \
 727         _struct._field*100/_struct.cycles : 0
 728
 729         len += snprintf(buf+len, sizeof(buf)-len, "profcnt tx\t\t%u\t(%d%%)\n",
 730                         CC_PRINT(as->last_cc, tx_frame));
 731         len += snprintf(buf+len, sizeof(buf)-len, "profcnt rx\t\t%u\t(%d%%)\n",
 732                         CC_PRINT(as->last_cc, rx_frame));
 733         len += snprintf(buf+len, sizeof(buf)-len, "profcnt busy\t\t%u\t(%d%%)\n",
 734                         CC_PRINT(as->last_cc, rx_busy));
 735 #undef CC_PRINT
 736         len += snprintf(buf+len, sizeof(buf)-len, "profcnt cycles\t\t%u\n",
 737                         as->last_cc.cycles);
 738         len += snprintf(buf+len, sizeof(buf)-len,
 739                         "listen time\t\t%d\tlast: %d\n",
 740                         as->listen_time, as->last_listen);
 741         len += snprintf(buf+len, sizeof(buf)-len,
 742                         "OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
 743                         as->ofdm_errors, as->last_ofdm_errors,
 744                         as->sum_ofdm_errors);
 745         len += snprintf(buf+len, sizeof(buf)-len,
 746                         "CCK errors\t\t%u\tlast: %u\tsum: %u\n",
 747                         as->cck_errors, as->last_cck_errors,
 748                         as->sum_cck_errors);
 749         len += snprintf(buf+len, sizeof(buf)-len,
 750                         "AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
 751                         ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1),
 752                         ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
 753                         ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1)));
 754         len += snprintf(buf+len, sizeof(buf)-len,
 755                         "AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
 756                         ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2),
 757                         ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
 758                         ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2)));
 759
 760         if (len > sizeof(buf))
 761                 len = sizeof(buf);
 762
 763         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 764 }
 765
 766 static ssize_t write_file_ani(struct file *file,
 767                                  const char __user *userbuf,
 768                                  size_t count, loff_t *ppos)
 769 {
 770         struct ath5k_softc *sc = file->private_data;
 771         char buf[20];
 772
 773         if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
 774                 return -EFAULT;
 775
 776         if (strncmp(buf, "sens-low", 8) == 0) {
 777                 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_HIGH);
 778         } else if (strncmp(buf, "sens-high", 9) == 0) {
 779                 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_LOW);
 780         } else if (strncmp(buf, "ani-off", 7) == 0) {
 781                 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_OFF);
 782         } else if (strncmp(buf, "ani-on", 6) == 0) {
 783                 ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_AUTO);
 784         } else if (strncmp(buf, "noise-low", 9) == 0) {
 785                 ath5k_ani_set_noise_immunity_level(sc->ah, 0);
 786         } else if (strncmp(buf, "noise-high", 10) == 0) {
 787                 ath5k_ani_set_noise_immunity_level(sc->ah,
 788                                                    ATH5K_ANI_MAX_NOISE_IMM_LVL);
 789         } else if (strncmp(buf, "spur-low", 8) == 0) {
 790                 ath5k_ani_set_spur_immunity_level(sc->ah, 0);
 791         } else if (strncmp(buf, "spur-high", 9) == 0) {
 792                 ath5k_ani_set_spur_immunity_level(sc->ah,
 793                                                   sc->ani_state.max_spur_level);
 794         } else if (strncmp(buf, "fir-low", 7) == 0) {
 795                 ath5k_ani_set_firstep_level(sc->ah, 0);
 796         } else if (strncmp(buf, "fir-high", 8) == 0) {
 797                 ath5k_ani_set_firstep_level(sc->ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
 798         } else if (strncmp(buf, "ofdm-off", 8) == 0) {
 799                 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, false);
 800         } else if (strncmp(buf, "ofdm-on", 7) == 0) {
 801                 ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, true);
 802         } else if (strncmp(buf, "cck-off", 7) == 0) {
 803                 ath5k_ani_set_cck_weak_signal_detection(sc->ah, false);
 804         } else if (strncmp(buf, "cck-on", 6) == 0) {
 805                 ath5k_ani_set_cck_weak_signal_detection(sc->ah, true);
 806         }
 807         return count;
 808 }
 809
 810 static const struct file_operations fops_ani = {
 811         .read = read_file_ani,
 812         .write = write_file_ani,
 813         .open = ath5k_debugfs_open,
 814         .owner = THIS_MODULE,
 815         .llseek = default_llseek,
 816 };
 817
 818
 819 /* debugfs: queues etc */
 820
 821 static ssize_t read_file_queue(struct file *file, char __user *user_buf,
 822                                    size_t count, loff_t *ppos)
 823 {
 824         struct ath5k_softc *sc = file->private_data;
 825         char buf[700];
 826         unsigned int len = 0;
 827
 828         struct ath5k_txq *txq;
 829         struct ath5k_buf *bf, *bf0;
 830         int i, n;
 831
 832         len += snprintf(buf+len, sizeof(buf)-len,
 833                         "available txbuffers: %d\n", sc->txbuf_len);
 834
 835         for (i = 0; i < ARRAY_SIZE(sc->txqs); i++) {
 836                 txq = &sc->txqs[i];
 837
 838                 len += snprintf(buf+len, sizeof(buf)-len,
 839                         "%02d: %ssetup\n", i, txq->setup ? "" : "not ");
 840
 841                 if (!txq->setup)
 842                         continue;
 843
 844                 n = 0;
 845                 spin_lock_bh(&txq->lock);
 846                 list_for_each_entry_safe(bf, bf0, &txq->q, list)
 847                         n++;
 848                 spin_unlock_bh(&txq->lock);
 849
 850                 len += snprintf(buf+len, sizeof(buf)-len,
 851                                 "  len: %d bufs: %d\n", txq->txq_len, n);
 852                 len += snprintf(buf+len, sizeof(buf)-len,
 853                                 "  stuck: %d\n", txq->txq_stuck);
 854         }
 855
 856         if (len > sizeof(buf))
 857                 len = sizeof(buf);
 858
 859         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 860 }
 861
 862 static ssize_t write_file_queue(struct file *file,
 863                                  const char __user *userbuf,
 864                                  size_t count, loff_t *ppos)
 865 {
 866         struct ath5k_softc *sc = file->private_data;
 867         char buf[20];
 868
 869         if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
 870                 return -EFAULT;
 871
 872         if (strncmp(buf, "start", 5) == 0)
 873                 ieee80211_wake_queues(sc->hw);
 874         else if (strncmp(buf, "stop", 4) == 0)
 875                 ieee80211_stop_queues(sc->hw);
 876
 877         return count;
 878 }
 879
 880
 881 static const struct file_operations fops_queue = {
 882         .read = read_file_queue,
 883         .write = write_file_queue,
 884         .open = ath5k_debugfs_open,
 885         .owner = THIS_MODULE,
 886         .llseek = default_llseek,
 887 };
 888
 889
 890 void
 891 ath5k_debug_init_device(struct ath5k_softc *sc)
 892 {
 893         sc->debug.level = ath5k_debug;
 894
 895         sc->debug.debugfs_phydir = debugfs_create_dir("ath5k",
 896                                 sc->hw->wiphy->debugfsdir);
 897
 898         sc->debug.debugfs_debug = debugfs_create_file("debug",
 899                                 S_IWUSR | S_IRUSR,
 900                                 sc->debug.debugfs_phydir, sc, &fops_debug);
 901
 902         sc->debug.debugfs_registers = debugfs_create_file("registers", S_IRUSR,
 903                                 sc->debug.debugfs_phydir, sc, &fops_registers);
 904
 905         sc->debug.debugfs_beacon = debugfs_create_file("beacon",
 906                                 S_IWUSR | S_IRUSR,
 907                                 sc->debug.debugfs_phydir, sc, &fops_beacon);
 908
 909         sc->debug.debugfs_reset = debugfs_create_file("reset", S_IWUSR,
 910                                 sc->debug.debugfs_phydir, sc, &fops_reset);
 911
 912         sc->debug.debugfs_antenna = debugfs_create_file("antenna",
 913                                 S_IWUSR | S_IRUSR,
 914                                 sc->debug.debugfs_phydir, sc, &fops_antenna);
 915
 916         sc->debug.debugfs_misc = debugfs_create_file("misc",
 917                                 S_IRUSR,
 918                                 sc->debug.debugfs_phydir, sc, &fops_misc);
 919
 920         sc->debug.debugfs_frameerrors = debugfs_create_file("frameerrors",
 921                                 S_IWUSR | S_IRUSR,
 922                                 sc->debug.debugfs_phydir, sc,
 923                                 &fops_frameerrors);
 924
 925         sc->debug.debugfs_ani = debugfs_create_file("ani",
 926                                 S_IWUSR | S_IRUSR,
 927                                 sc->debug.debugfs_phydir, sc,
 928                                 &fops_ani);
 929
 930         sc->debug.debugfs_queue = debugfs_create_file("queue",
 931                                 S_IWUSR | S_IRUSR,
 932                                 sc->debug.debugfs_phydir, sc,
 933                                 &fops_queue);
 934 }
 935
 936 void
 937 ath5k_debug_finish_device(struct ath5k_softc *sc)
 938 {
 939         debugfs_remove(sc->debug.debugfs_debug);
 940         debugfs_remove(sc->debug.debugfs_registers);
 941         debugfs_remove(sc->debug.debugfs_beacon);
 942         debugfs_remove(sc->debug.debugfs_reset);
 943         debugfs_remove(sc->debug.debugfs_antenna);
 944         debugfs_remove(sc->debug.debugfs_misc);
 945         debugfs_remove(sc->debug.debugfs_frameerrors);
 946         debugfs_remove(sc->debug.debugfs_ani);
 947         debugfs_remove(sc->debug.debugfs_queue);
 948         debugfs_remove(sc->debug.debugfs_phydir);
 949 }
 950
 951
 952 /* functions used in other places */
 953
 954 void
 955 ath5k_debug_dump_bands(struct ath5k_softc *sc)
 956 {
 957         unsigned int b, i;
 958
 959         if (likely(!(sc->debug.level & ATH5K_DEBUG_DUMPBANDS)))
 960                 return;
 961
 962         BUG_ON(!sc->sbands);
 963
 964         for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
 965                 struct ieee80211_supported_band *band = &sc->sbands[b];
 966                 char bname[6];
 967                 switch (band->band) {
 968                 case IEEE80211_BAND_2GHZ:
 969                         strcpy(bname, "2 GHz");
 970                         break;
 971                 case IEEE80211_BAND_5GHZ:
 972                         strcpy(bname, "5 GHz");
 973                         break;
 974                 default:
 975                         printk(KERN_DEBUG "Band not supported: %d\n",
 976                                 band->band);
 977                         return;
 978                 }
 979                 printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
 980                                 band->n_channels, band->n_bitrates);
 981                 printk(KERN_DEBUG " channels:\n");
 982                 for (i = 0; i < band->n_channels; i++)
 983                         printk(KERN_DEBUG "  %3d %d %.4x %.4x\n",
 984                                         ieee80211_frequency_to_channel(
 985                                                 band->channels[i].center_freq),
 986                                         band->channels[i].center_freq,
 987                                         band->channels[i].hw_value,
 988                                         band->channels[i].flags);
 989                 printk(KERN_DEBUG " rates:\n");
 990                 for (i = 0; i < band->n_bitrates; i++)
 991                         printk(KERN_DEBUG "  %4d %.4x %.4x %.4x\n",
 992                                         band->bitrates[i].bitrate,
 993                                         band->bitrates[i].hw_value,
 994                                         band->bitrates[i].flags,
 995                                         band->bitrates[i].hw_value_short);
 996         }
 997 }
 998
 999 static inline void
1000 ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
1001                        struct ath5k_rx_status *rs)
1002 {
1003         struct ath5k_desc *ds = bf->desc;
1004         struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
1005
1006         printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
1007                 ds, (unsigned long long)bf->daddr,
1008                 ds->ds_link, ds->ds_data,
1009                 rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
1010                 rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
1011                 !done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
1012 }
1013
1014 void
1015 ath5k_debug_printrxbuffs(struct ath5k_softc *sc, struct ath5k_hw *ah)
1016 {
1017         struct ath5k_desc *ds;
1018         struct ath5k_buf *bf;
1019         struct ath5k_rx_status rs = {};
1020         int status;
1021
1022         if (likely(!(sc->debug.level & ATH5K_DEBUG_DESC)))
1023                 return;
1024
1025         printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
1026                 ath5k_hw_get_rxdp(ah), sc->rxlink);
1027
1028         spin_lock_bh(&sc->rxbuflock);
1029         list_for_each_entry(bf, &sc->rxbuf, list) {
1030                 ds = bf->desc;
1031                 status = ah->ah_proc_rx_desc(ah, ds, &rs);
1032                 if (!status)
1033                         ath5k_debug_printrxbuf(bf, status == 0, &rs);
1034         }
1035         spin_unlock_bh(&sc->rxbuflock);
1036 }
1037
1038 void
1039 ath5k_debug_dump_skb(struct ath5k_softc *sc,
1040                         struct sk_buff *skb, const char *prefix, int tx)
1041 {
1042         char buf[16];
1043
1044         if (likely(!((tx && (sc->debug.level & ATH5K_DEBUG_DUMP_TX)) ||
1045                      (!tx && (sc->debug.level & ATH5K_DEBUG_DUMP_RX)))))
1046                 return;
1047
1048         snprintf(buf, sizeof(buf), "%s %s", wiphy_name(sc->hw->wiphy), prefix);
1049
1050         print_hex_dump_bytes(buf, DUMP_PREFIX_NONE, skb->data,
1051                 min(200U, skb->len));
1052
1053         printk(KERN_DEBUG "\n");
1054 }
1055
1056 void
1057 ath5k_debug_printtxbuf(struct ath5k_softc *sc, struct ath5k_buf *bf)
1058 {
1059         struct ath5k_desc *ds = bf->desc;
1060         struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
1061         struct ath5k_tx_status ts = {};
1062         int done;
1063
1064         if (likely(!(sc->debug.level & ATH5K_DEBUG_DESC)))
1065                 return;
1066
1067         done = sc->ah->ah_proc_tx_desc(sc->ah, bf->desc, &ts);
1068
1069         printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
1070                 "%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
1071                 ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
1072                 td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
1073                 td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
1074                 done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
1075 }
1076
1077 #endif /* ifdef CONFIG_ATH5K_DEBUG */