drivers/net/wireless/wl12xx/debugfs.c

   1 /*
   2  * This file is part of wl1271
   3  *
   4  * Copyright (C) 2009 Nokia Corporation
   5  *
   6  * Contact: Luciano Coelho <luciano.coelho@nokia.com>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * version 2 as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  20  * 02110-1301 USA
  21  *
  22  */
  23
  24 #include "debugfs.h"
  25
  26 #include <linux/skbuff.h>
  27 #include <linux/slab.h>
  28
  29 #include "wl12xx.h"
  30 #include "debug.h"
  31 #include "acx.h"
  32 #include "ps.h"
  33 #include "io.h"
  34 #include "tx.h"
  35
  36 /* ms */
  37 #define WL1271_DEBUGFS_STATS_LIFETIME 1000
  38
  39 /* debugfs macros idea from mac80211 */
  40 #define DEBUGFS_FORMAT_BUFFER_SIZE 100
  41 static int wl1271_format_buffer(char __user *userbuf, size_t count,
  42                                     loff_t *ppos, char *fmt, ...)
  43 {
  44         va_list args;
  45         char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
  46         int res;
  47
  48         va_start(args, fmt);
  49         res = vscnprintf(buf, sizeof(buf), fmt, args);
  50         va_end(args);
  51
  52         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
  53 }
  54
  55 #define DEBUGFS_READONLY_FILE(name, fmt, value...)                      \
  56 static ssize_t name## _read(struct file *file, char __user *userbuf,    \
  57                             size_t count, loff_t *ppos)                 \
  58 {                                                                       \
  59         struct wl1271 *wl = file->private_data;                         \
  60         return wl1271_format_buffer(userbuf, count, ppos,               \
  61                                     fmt "\n", ##value);                 \
  62 }                                                                       \
  63                                                                         \
  64 static const struct file_operations name## _ops = {                     \
  65         .read = name## _read,                                           \
  66         .open = simple_open,                                            \
  67         .llseek = generic_file_llseek,                                  \
  68 };
  69
  70 #define DEBUGFS_ADD(name, parent)                                       \
  71         entry = debugfs_create_file(#name, 0400, parent,                \
  72                                     wl, &name## _ops);                  \
  73         if (!entry || IS_ERR(entry))                                    \
  74                 goto err;                                               \
  75
  76 #define DEBUGFS_ADD_PREFIX(prefix, name, parent)                        \
  77         do {                                                            \
  78                 entry = debugfs_create_file(#name, 0400, parent,        \
  79                                     wl, &prefix## _## name## _ops);     \
  80                 if (!entry || IS_ERR(entry))                            \
  81                         goto err;                                       \
  82         } while (0);
  83
  84 #define DEBUGFS_FWSTATS_FILE(sub, name, fmt)                            \
  85 static ssize_t sub## _ ##name## _read(struct file *file,                \
  86                                       char __user *userbuf,             \
  87                                       size_t count, loff_t *ppos)       \
  88 {                                                                       \
  89         struct wl1271 *wl = file->private_data;                         \
  90                                                                         \
  91         wl1271_debugfs_update_stats(wl);                                \
  92                                                                         \
  93         return wl1271_format_buffer(userbuf, count, ppos, fmt "\n",     \
  94                                     wl->stats.fw_stats->sub.name);      \
  95 }                                                                       \
  96                                                                         \
  97 static const struct file_operations sub## _ ##name## _ops = {           \
  98         .read = sub## _ ##name## _read,                                 \
  99         .open = simple_open,                                            \
 100         .llseek = generic_file_llseek,                                  \
 101 };
 102
 103 #define DEBUGFS_FWSTATS_ADD(sub, name)                          \
 104         DEBUGFS_ADD(sub## _ ##name, stats)
 105
 106 static void wl1271_debugfs_update_stats(struct wl1271 *wl)
 107 {
 108         int ret;
 109
 110         mutex_lock(&wl->mutex);
 111
 112         ret = wl1271_ps_elp_wakeup(wl);
 113         if (ret < 0)
 114                 goto out;
 115
 116         if (wl->state == WL1271_STATE_ON && !wl->plt &&
 117             time_after(jiffies, wl->stats.fw_stats_update +
 118                        msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) {
 119                 wl1271_acx_statistics(wl, wl->stats.fw_stats);
 120                 wl->stats.fw_stats_update = jiffies;
 121         }
 122
 123         wl1271_ps_elp_sleep(wl);
 124
 125 out:
 126         mutex_unlock(&wl->mutex);
 127 }
 128
 129 DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, "%u");
 130
 131 DEBUGFS_FWSTATS_FILE(rx, out_of_mem, "%u");
 132 DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, "%u");
 133 DEBUGFS_FWSTATS_FILE(rx, hw_stuck, "%u");
 134 DEBUGFS_FWSTATS_FILE(rx, dropped, "%u");
 135 DEBUGFS_FWSTATS_FILE(rx, fcs_err, "%u");
 136 DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, "%u");
 137 DEBUGFS_FWSTATS_FILE(rx, path_reset, "%u");
 138 DEBUGFS_FWSTATS_FILE(rx, reset_counter, "%u");
 139
 140 DEBUGFS_FWSTATS_FILE(dma, rx_requested, "%u");
 141 DEBUGFS_FWSTATS_FILE(dma, rx_errors, "%u");
 142 DEBUGFS_FWSTATS_FILE(dma, tx_requested, "%u");
 143 DEBUGFS_FWSTATS_FILE(dma, tx_errors, "%u");
 144
 145 DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, "%u");
 146 DEBUGFS_FWSTATS_FILE(isr, fiqs, "%u");
 147 DEBUGFS_FWSTATS_FILE(isr, rx_headers, "%u");
 148 DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, "%u");
 149 DEBUGFS_FWSTATS_FILE(isr, rx_rdys, "%u");
 150 DEBUGFS_FWSTATS_FILE(isr, irqs, "%u");
 151 DEBUGFS_FWSTATS_FILE(isr, tx_procs, "%u");
 152 DEBUGFS_FWSTATS_FILE(isr, decrypt_done, "%u");
 153 DEBUGFS_FWSTATS_FILE(isr, dma0_done, "%u");
 154 DEBUGFS_FWSTATS_FILE(isr, dma1_done, "%u");
 155 DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, "%u");
 156 DEBUGFS_FWSTATS_FILE(isr, commands, "%u");
 157 DEBUGFS_FWSTATS_FILE(isr, rx_procs, "%u");
 158 DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, "%u");
 159 DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, "%u");
 160 DEBUGFS_FWSTATS_FILE(isr, pci_pm, "%u");
 161 DEBUGFS_FWSTATS_FILE(isr, wakeups, "%u");
 162 DEBUGFS_FWSTATS_FILE(isr, low_rssi, "%u");
 163
 164 DEBUGFS_FWSTATS_FILE(wep, addr_key_count, "%u");
 165 DEBUGFS_FWSTATS_FILE(wep, default_key_count, "%u");
 166 /* skipping wep.reserved */
 167 DEBUGFS_FWSTATS_FILE(wep, key_not_found, "%u");
 168 DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, "%u");
 169 DEBUGFS_FWSTATS_FILE(wep, packets, "%u");
 170 DEBUGFS_FWSTATS_FILE(wep, interrupt, "%u");
 171
 172 DEBUGFS_FWSTATS_FILE(pwr, ps_enter, "%u");
 173 DEBUGFS_FWSTATS_FILE(pwr, elp_enter, "%u");
 174 DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, "%u");
 175 DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, "%u");
 176 DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, "%u");
 177 DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, "%u");
 178 DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, "%u");
 179 DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, "%u");
 180 DEBUGFS_FWSTATS_FILE(pwr, power_save_off, "%u");
 181 DEBUGFS_FWSTATS_FILE(pwr, enable_ps, "%u");
 182 DEBUGFS_FWSTATS_FILE(pwr, disable_ps, "%u");
 183 DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, "%u");
 184 /* skipping cont_miss_bcns_spread for now */
 185 DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, "%u");
 186
 187 DEBUGFS_FWSTATS_FILE(mic, rx_pkts, "%u");
 188 DEBUGFS_FWSTATS_FILE(mic, calc_failure, "%u");
 189
 190 DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, "%u");
 191 DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, "%u");
 192 DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, "%u");
 193 DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, "%u");
 194 DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, "%u");
 195 DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, "%u");
 196
 197 DEBUGFS_FWSTATS_FILE(event, heart_beat, "%u");
 198 DEBUGFS_FWSTATS_FILE(event, calibration, "%u");
 199 DEBUGFS_FWSTATS_FILE(event, rx_mismatch, "%u");
 200 DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, "%u");
 201 DEBUGFS_FWSTATS_FILE(event, rx_pool, "%u");
 202 DEBUGFS_FWSTATS_FILE(event, oom_late, "%u");
 203 DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, "%u");
 204 DEBUGFS_FWSTATS_FILE(event, tx_stuck, "%u");
 205
 206 DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, "%u");
 207 DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, "%u");
 208 DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, "%u");
 209 DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, "%u");
 210 DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, "%u");
 211 DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, "%u");
 212 DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, "%u");
 213
 214 DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, "%u");
 215 DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, "%u");
 216 DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data, "%u");
 217 DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, "%u");
 218 DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, "%u");
 219
 220 DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
 221 DEBUGFS_READONLY_FILE(excessive_retries, "%u",
 222                       wl->stats.excessive_retries);
 223
 224 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
 225                                  size_t count, loff_t *ppos)
 226 {
 227         struct wl1271 *wl = file->private_data;
 228         u32 queue_len;
 229         char buf[20];
 230         int res;
 231
 232         queue_len = wl1271_tx_total_queue_count(wl);
 233
 234         res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
 235         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
 236 }
 237
 238 static const struct file_operations tx_queue_len_ops = {
 239         .read = tx_queue_len_read,
 240         .open = simple_open,
 241         .llseek = default_llseek,
 242 };
 243
 244 static ssize_t gpio_power_read(struct file *file, char __user *user_buf,
 245                           size_t count, loff_t *ppos)
 246 {
 247         struct wl1271 *wl = file->private_data;
 248         bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 249
 250         int res;
 251         char buf[10];
 252
 253         res = scnprintf(buf, sizeof(buf), "%d\n", state);
 254
 255         return simple_read_from_buffer(user_buf, count, ppos, buf, res);
 256 }
 257
 258 static ssize_t gpio_power_write(struct file *file,
 259                            const char __user *user_buf,
 260                            size_t count, loff_t *ppos)
 261 {
 262         struct wl1271 *wl = file->private_data;
 263         unsigned long value;
 264         int ret;
 265
 266         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 267         if (ret < 0) {
 268                 wl1271_warning("illegal value in gpio_power");
 269                 return -EINVAL;
 270         }
 271
 272         mutex_lock(&wl->mutex);
 273
 274         if (value)
 275                 wl1271_power_on(wl);
 276         else
 277                 wl1271_power_off(wl);
 278
 279         mutex_unlock(&wl->mutex);
 280         return count;
 281 }
 282
 283 static const struct file_operations gpio_power_ops = {
 284         .read = gpio_power_read,
 285         .write = gpio_power_write,
 286         .open = simple_open,
 287         .llseek = default_llseek,
 288 };
 289
 290 static ssize_t start_recovery_write(struct file *file,
 291                                     const char __user *user_buf,
 292                                     size_t count, loff_t *ppos)
 293 {
 294         struct wl1271 *wl = file->private_data;
 295
 296         mutex_lock(&wl->mutex);
 297         wl12xx_queue_recovery_work(wl);
 298         mutex_unlock(&wl->mutex);
 299
 300         return count;
 301 }
 302
 303 static const struct file_operations start_recovery_ops = {
 304         .write = start_recovery_write,
 305         .open = simple_open,
 306         .llseek = default_llseek,
 307 };
 308
 309 static ssize_t dynamic_ps_timeout_read(struct file *file, char __user *user_buf,
 310                           size_t count, loff_t *ppos)
 311 {
 312         struct wl1271 *wl = file->private_data;
 313
 314         return wl1271_format_buffer(user_buf, count,
 315                                     ppos, "%d\n",
 316                                     wl->conf.conn.dynamic_ps_timeout);
 317 }
 318
 319 static ssize_t dynamic_ps_timeout_write(struct file *file,
 320                                     const char __user *user_buf,
 321                                     size_t count, loff_t *ppos)
 322 {
 323         struct wl1271 *wl = file->private_data;
 324         struct wl12xx_vif *wlvif;
 325         unsigned long value;
 326         int ret;
 327
 328         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 329         if (ret < 0) {
 330                 wl1271_warning("illegal value in dynamic_ps");
 331                 return -EINVAL;
 332         }
 333
 334         if (value < 1 || value > 65535) {
 335                 wl1271_warning("dyanmic_ps_timeout is not in valid range");
 336                 return -ERANGE;
 337         }
 338
 339         mutex_lock(&wl->mutex);
 340
 341         wl->conf.conn.dynamic_ps_timeout = value;
 342
 343         if (wl->state == WL1271_STATE_OFF)
 344                 goto out;
 345
 346         ret = wl1271_ps_elp_wakeup(wl);
 347         if (ret < 0)
 348                 goto out;
 349
 350         /* In case we're already in PSM, trigger it again to set new timeout
 351          * immediately without waiting for re-association
 352          */
 353
 354         wl12xx_for_each_wlvif_sta(wl, wlvif) {
 355                 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
 356                         wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE);
 357         }
 358
 359         wl1271_ps_elp_sleep(wl);
 360
 361 out:
 362         mutex_unlock(&wl->mutex);
 363         return count;
 364 }
 365
 366 static const struct file_operations dynamic_ps_timeout_ops = {
 367         .read = dynamic_ps_timeout_read,
 368         .write = dynamic_ps_timeout_write,
 369         .open = simple_open,
 370         .llseek = default_llseek,
 371 };
 372
 373 static ssize_t forced_ps_read(struct file *file, char __user *user_buf,
 374                           size_t count, loff_t *ppos)
 375 {
 376         struct wl1271 *wl = file->private_data;
 377
 378         return wl1271_format_buffer(user_buf, count,
 379                                     ppos, "%d\n",
 380                                     wl->conf.conn.forced_ps);
 381 }
 382
 383 static ssize_t forced_ps_write(struct file *file,
 384                                     const char __user *user_buf,
 385                                     size_t count, loff_t *ppos)
 386 {
 387         struct wl1271 *wl = file->private_data;
 388         struct wl12xx_vif *wlvif;
 389         unsigned long value;
 390         int ret, ps_mode;
 391
 392         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 393         if (ret < 0) {
 394                 wl1271_warning("illegal value in forced_ps");
 395                 return -EINVAL;
 396         }
 397
 398         if (value != 1 && value != 0) {
 399                 wl1271_warning("forced_ps should be either 0 or 1");
 400                 return -ERANGE;
 401         }
 402
 403         mutex_lock(&wl->mutex);
 404
 405         if (wl->conf.conn.forced_ps == value)
 406                 goto out;
 407
 408         wl->conf.conn.forced_ps = value;
 409
 410         if (wl->state == WL1271_STATE_OFF)
 411                 goto out;
 412
 413         ret = wl1271_ps_elp_wakeup(wl);
 414         if (ret < 0)
 415                 goto out;
 416
 417         /* In case we're already in PSM, trigger it again to switch mode
 418          * immediately without waiting for re-association
 419          */
 420
 421         ps_mode = value ? STATION_POWER_SAVE_MODE : STATION_AUTO_PS_MODE;
 422
 423         wl12xx_for_each_wlvif_sta(wl, wlvif) {
 424                 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
 425                         wl1271_ps_set_mode(wl, wlvif, ps_mode);
 426         }
 427
 428         wl1271_ps_elp_sleep(wl);
 429
 430 out:
 431         mutex_unlock(&wl->mutex);
 432         return count;
 433 }
 434
 435 static const struct file_operations forced_ps_ops = {
 436         .read = forced_ps_read,
 437         .write = forced_ps_write,
 438         .open = simple_open,
 439         .llseek = default_llseek,
 440 };
 441
 442 static ssize_t split_scan_timeout_read(struct file *file, char __user *user_buf,
 443                           size_t count, loff_t *ppos)
 444 {
 445         struct wl1271 *wl = file->private_data;
 446
 447         return wl1271_format_buffer(user_buf, count,
 448                                     ppos, "%d\n",
 449                                     wl->conf.scan.split_scan_timeout / 1000);
 450 }
 451
 452 static ssize_t split_scan_timeout_write(struct file *file,
 453                                     const char __user *user_buf,
 454                                     size_t count, loff_t *ppos)
 455 {
 456         struct wl1271 *wl = file->private_data;
 457         unsigned long value;
 458         int ret;
 459
 460         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 461         if (ret < 0) {
 462                 wl1271_warning("illegal value in split_scan_timeout");
 463                 return -EINVAL;
 464         }
 465
 466         if (value == 0)
 467                 wl1271_info("split scan will be disabled");
 468
 469         mutex_lock(&wl->mutex);
 470
 471         wl->conf.scan.split_scan_timeout = value * 1000;
 472
 473         mutex_unlock(&wl->mutex);
 474         return count;
 475 }
 476
 477 static const struct file_operations split_scan_timeout_ops = {
 478         .read = split_scan_timeout_read,
 479         .write = split_scan_timeout_write,
 480         .open = simple_open,
 481         .llseek = default_llseek,
 482 };
 483
 484 static ssize_t driver_state_read(struct file *file, char __user *user_buf,
 485                                  size_t count, loff_t *ppos)
 486 {
 487         struct wl1271 *wl = file->private_data;
 488         int res = 0;
 489         ssize_t ret;
 490         char *buf;
 491
 492 #define DRIVER_STATE_BUF_LEN 1024
 493
 494         buf = kmalloc(DRIVER_STATE_BUF_LEN, GFP_KERNEL);
 495         if (!buf)
 496                 return -ENOMEM;
 497
 498         mutex_lock(&wl->mutex);
 499
 500 #define DRIVER_STATE_PRINT(x, fmt)   \
 501         (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\
 502                           #x " = " fmt "\n", wl->x))
 503
 504 #define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld")
 505 #define DRIVER_STATE_PRINT_INT(x)  DRIVER_STATE_PRINT(x, "%d")
 506 #define DRIVER_STATE_PRINT_STR(x)  DRIVER_STATE_PRINT(x, "%s")
 507 #define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx")
 508 #define DRIVER_STATE_PRINT_HEX(x)  DRIVER_STATE_PRINT(x, "0x%x")
 509
 510         DRIVER_STATE_PRINT_INT(tx_blocks_available);
 511         DRIVER_STATE_PRINT_INT(tx_allocated_blocks);
 512         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]);
 513         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]);
 514         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]);
 515         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]);
 516         DRIVER_STATE_PRINT_INT(tx_frames_cnt);
 517         DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]);
 518         DRIVER_STATE_PRINT_INT(tx_queue_count[0]);
 519         DRIVER_STATE_PRINT_INT(tx_queue_count[1]);
 520         DRIVER_STATE_PRINT_INT(tx_queue_count[2]);
 521         DRIVER_STATE_PRINT_INT(tx_queue_count[3]);
 522         DRIVER_STATE_PRINT_INT(tx_packets_count);
 523         DRIVER_STATE_PRINT_INT(tx_results_count);
 524         DRIVER_STATE_PRINT_LHEX(flags);
 525         DRIVER_STATE_PRINT_INT(tx_blocks_freed);
 526         DRIVER_STATE_PRINT_INT(rx_counter);
 527         DRIVER_STATE_PRINT_INT(state);
 528         DRIVER_STATE_PRINT_INT(channel);
 529         DRIVER_STATE_PRINT_INT(band);
 530         DRIVER_STATE_PRINT_INT(power_level);
 531         DRIVER_STATE_PRINT_INT(sg_enabled);
 532         DRIVER_STATE_PRINT_INT(enable_11a);
 533         DRIVER_STATE_PRINT_INT(noise);
 534         DRIVER_STATE_PRINT_HEX(ap_fw_ps_map);
 535         DRIVER_STATE_PRINT_LHEX(ap_ps_map);
 536         DRIVER_STATE_PRINT_HEX(quirks);
 537         DRIVER_STATE_PRINT_HEX(irq);
 538         DRIVER_STATE_PRINT_HEX(ref_clock);
 539         DRIVER_STATE_PRINT_HEX(tcxo_clock);
 540         DRIVER_STATE_PRINT_HEX(hw_pg_ver);
 541         DRIVER_STATE_PRINT_HEX(platform_quirks);
 542         DRIVER_STATE_PRINT_HEX(chip.id);
 543         DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
 544         DRIVER_STATE_PRINT_INT(sched_scanning);
 545
 546 #undef DRIVER_STATE_PRINT_INT
 547 #undef DRIVER_STATE_PRINT_LONG
 548 #undef DRIVER_STATE_PRINT_HEX
 549 #undef DRIVER_STATE_PRINT_LHEX
 550 #undef DRIVER_STATE_PRINT_STR
 551 #undef DRIVER_STATE_PRINT
 552 #undef DRIVER_STATE_BUF_LEN
 553
 554         mutex_unlock(&wl->mutex);
 555
 556         ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
 557         kfree(buf);
 558         return ret;
 559 }
 560
 561 static const struct file_operations driver_state_ops = {
 562         .read = driver_state_read,
 563         .open = simple_open,
 564         .llseek = default_llseek,
 565 };
 566
 567 static ssize_t vifs_state_read(struct file *file, char __user *user_buf,
 568                                  size_t count, loff_t *ppos)
 569 {
 570         struct wl1271 *wl = file->private_data;
 571         struct wl12xx_vif *wlvif;
 572         int ret, res = 0;
 573         const int buf_size = 4096;
 574         char *buf;
 575         char tmp_buf[64];
 576
 577         buf = kzalloc(buf_size, GFP_KERNEL);
 578         if (!buf)
 579                 return -ENOMEM;
 580
 581         mutex_lock(&wl->mutex);
 582
 583 #define VIF_STATE_PRINT(x, fmt)                         \
 584         (res += scnprintf(buf + res, buf_size - res,    \
 585                           #x " = " fmt "\n", wlvif->x))
 586
 587 #define VIF_STATE_PRINT_LONG(x)  VIF_STATE_PRINT(x, "%ld")
 588 #define VIF_STATE_PRINT_INT(x)   VIF_STATE_PRINT(x, "%d")
 589 #define VIF_STATE_PRINT_STR(x)   VIF_STATE_PRINT(x, "%s")
 590 #define VIF_STATE_PRINT_LHEX(x)  VIF_STATE_PRINT(x, "0x%lx")
 591 #define VIF_STATE_PRINT_LLHEX(x) VIF_STATE_PRINT(x, "0x%llx")
 592 #define VIF_STATE_PRINT_HEX(x)   VIF_STATE_PRINT(x, "0x%x")
 593
 594 #define VIF_STATE_PRINT_NSTR(x, len)                            \
 595         do {                                                    \
 596                 memset(tmp_buf, 0, sizeof(tmp_buf));            \
 597                 memcpy(tmp_buf, wlvif->x,                       \
 598                        min_t(u8, len, sizeof(tmp_buf) - 1));    \
 599                 res += scnprintf(buf + res, buf_size - res,     \
 600                                  #x " = %s\n", tmp_buf);        \
 601         } while (0)
 602
 603         wl12xx_for_each_wlvif(wl, wlvif) {
 604                 VIF_STATE_PRINT_INT(role_id);
 605                 VIF_STATE_PRINT_INT(bss_type);
 606                 VIF_STATE_PRINT_LHEX(flags);
 607                 VIF_STATE_PRINT_INT(p2p);
 608                 VIF_STATE_PRINT_INT(dev_role_id);
 609                 VIF_STATE_PRINT_INT(dev_hlid);
 610
 611                 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
 612                     wlvif->bss_type == BSS_TYPE_IBSS) {
 613                         VIF_STATE_PRINT_INT(sta.hlid);
 614                         VIF_STATE_PRINT_INT(sta.ba_rx_bitmap);
 615                         VIF_STATE_PRINT_INT(sta.basic_rate_idx);
 616                         VIF_STATE_PRINT_INT(sta.ap_rate_idx);
 617                         VIF_STATE_PRINT_INT(sta.p2p_rate_idx);
 618                         VIF_STATE_PRINT_INT(sta.qos);
 619                 } else {
 620                         VIF_STATE_PRINT_INT(ap.global_hlid);
 621                         VIF_STATE_PRINT_INT(ap.bcast_hlid);
 622                         VIF_STATE_PRINT_LHEX(ap.sta_hlid_map[0]);
 623                         VIF_STATE_PRINT_INT(ap.mgmt_rate_idx);
 624                         VIF_STATE_PRINT_INT(ap.bcast_rate_idx);
 625                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[0]);
 626                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[1]);
 627                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[2]);
 628                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[3]);
 629                 }
 630                 VIF_STATE_PRINT_INT(last_tx_hlid);
 631                 VIF_STATE_PRINT_LHEX(links_map[0]);
 632                 VIF_STATE_PRINT_NSTR(ssid, wlvif->ssid_len);
 633                 VIF_STATE_PRINT_INT(band);
 634                 VIF_STATE_PRINT_INT(channel);
 635                 VIF_STATE_PRINT_HEX(bitrate_masks[0]);
 636                 VIF_STATE_PRINT_HEX(bitrate_masks[1]);
 637                 VIF_STATE_PRINT_HEX(basic_rate_set);
 638                 VIF_STATE_PRINT_HEX(basic_rate);
 639                 VIF_STATE_PRINT_HEX(rate_set);
 640                 VIF_STATE_PRINT_INT(beacon_int);
 641                 VIF_STATE_PRINT_INT(default_key);
 642                 VIF_STATE_PRINT_INT(aid);
 643                 VIF_STATE_PRINT_INT(session_counter);
 644                 VIF_STATE_PRINT_INT(psm_entry_retry);
 645                 VIF_STATE_PRINT_INT(power_level);
 646                 VIF_STATE_PRINT_INT(rssi_thold);
 647                 VIF_STATE_PRINT_INT(last_rssi_event);
 648                 VIF_STATE_PRINT_INT(ba_support);
 649                 VIF_STATE_PRINT_INT(ba_allowed);
 650                 VIF_STATE_PRINT_LLHEX(tx_security_seq);
 651                 VIF_STATE_PRINT_INT(tx_security_last_seq_lsb);
 652         }
 653
 654 #undef VIF_STATE_PRINT_INT
 655 #undef VIF_STATE_PRINT_LONG
 656 #undef VIF_STATE_PRINT_HEX
 657 #undef VIF_STATE_PRINT_LHEX
 658 #undef VIF_STATE_PRINT_LLHEX
 659 #undef VIF_STATE_PRINT_STR
 660 #undef VIF_STATE_PRINT_NSTR
 661 #undef VIF_STATE_PRINT
 662
 663         mutex_unlock(&wl->mutex);
 664
 665         ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
 666         kfree(buf);
 667         return ret;
 668 }
 669
 670 static const struct file_operations vifs_state_ops = {
 671         .read = vifs_state_read,
 672         .open = simple_open,
 673         .llseek = default_llseek,
 674 };
 675
 676 static ssize_t dtim_interval_read(struct file *file, char __user *user_buf,
 677                                   size_t count, loff_t *ppos)
 678 {
 679         struct wl1271 *wl = file->private_data;
 680         u8 value;
 681
 682         if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
 683             wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
 684                 value = wl->conf.conn.listen_interval;
 685         else
 686                 value = 0;
 687
 688         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
 689 }
 690
 691 static ssize_t dtim_interval_write(struct file *file,
 692                                    const char __user *user_buf,
 693                                    size_t count, loff_t *ppos)
 694 {
 695         struct wl1271 *wl = file->private_data;
 696         unsigned long value;
 697         int ret;
 698
 699         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 700         if (ret < 0) {
 701                 wl1271_warning("illegal value for dtim_interval");
 702                 return -EINVAL;
 703         }
 704
 705         if (value < 1 || value > 10) {
 706                 wl1271_warning("dtim value is not in valid range");
 707                 return -ERANGE;
 708         }
 709
 710         mutex_lock(&wl->mutex);
 711
 712         wl->conf.conn.listen_interval = value;
 713         /* for some reason there are different event types for 1 and >1 */
 714         if (value == 1)
 715                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
 716         else
 717                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
 718
 719         /*
 720          * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
 721          * take effect on the next time we enter psm.
 722          */
 723         mutex_unlock(&wl->mutex);
 724         return count;
 725 }
 726
 727 static const struct file_operations dtim_interval_ops = {
 728         .read = dtim_interval_read,
 729         .write = dtim_interval_write,
 730         .open = simple_open,
 731         .llseek = default_llseek,
 732 };
 733
 734
 735
 736 static ssize_t suspend_dtim_interval_read(struct file *file,
 737                                           char __user *user_buf,
 738                                           size_t count, loff_t *ppos)
 739 {
 740         struct wl1271 *wl = file->private_data;
 741         u8 value;
 742
 743         if (wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
 744             wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
 745                 value = wl->conf.conn.suspend_listen_interval;
 746         else
 747                 value = 0;
 748
 749         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
 750 }
 751
 752 static ssize_t suspend_dtim_interval_write(struct file *file,
 753                                            const char __user *user_buf,
 754                                            size_t count, loff_t *ppos)
 755 {
 756         struct wl1271 *wl = file->private_data;
 757         unsigned long value;
 758         int ret;
 759
 760         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 761         if (ret < 0) {
 762                 wl1271_warning("illegal value for suspend_dtim_interval");
 763                 return -EINVAL;
 764         }
 765
 766         if (value < 1 || value > 10) {
 767                 wl1271_warning("suspend_dtim value is not in valid range");
 768                 return -ERANGE;
 769         }
 770
 771         mutex_lock(&wl->mutex);
 772
 773         wl->conf.conn.suspend_listen_interval = value;
 774         /* for some reason there are different event types for 1 and >1 */
 775         if (value == 1)
 776                 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
 777         else
 778                 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
 779
 780         mutex_unlock(&wl->mutex);
 781         return count;
 782 }
 783
 784
 785 static const struct file_operations suspend_dtim_interval_ops = {
 786         .read = suspend_dtim_interval_read,
 787         .write = suspend_dtim_interval_write,
 788         .open = simple_open,
 789         .llseek = default_llseek,
 790 };
 791
 792 static ssize_t beacon_interval_read(struct file *file, char __user *user_buf,
 793                                     size_t count, loff_t *ppos)
 794 {
 795         struct wl1271 *wl = file->private_data;
 796         u8 value;
 797
 798         if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON ||
 799             wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS)
 800                 value = wl->conf.conn.listen_interval;
 801         else
 802                 value = 0;
 803
 804         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
 805 }
 806
 807 static ssize_t beacon_interval_write(struct file *file,
 808                                      const char __user *user_buf,
 809                                      size_t count, loff_t *ppos)
 810 {
 811         struct wl1271 *wl = file->private_data;
 812         unsigned long value;
 813         int ret;
 814
 815         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 816         if (ret < 0) {
 817                 wl1271_warning("illegal value for beacon_interval");
 818                 return -EINVAL;
 819         }
 820
 821         if (value < 1 || value > 255) {
 822                 wl1271_warning("beacon interval value is not in valid range");
 823                 return -ERANGE;
 824         }
 825
 826         mutex_lock(&wl->mutex);
 827
 828         wl->conf.conn.listen_interval = value;
 829         /* for some reason there are different event types for 1 and >1 */
 830         if (value == 1)
 831                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON;
 832         else
 833                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS;
 834
 835         /*
 836          * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
 837          * take effect on the next time we enter psm.
 838          */
 839         mutex_unlock(&wl->mutex);
 840         return count;
 841 }
 842
 843 static const struct file_operations beacon_interval_ops = {
 844         .read = beacon_interval_read,
 845         .write = beacon_interval_write,
 846         .open = simple_open,
 847         .llseek = default_llseek,
 848 };
 849
 850 static ssize_t rx_streaming_interval_write(struct file *file,
 851                            const char __user *user_buf,
 852                            size_t count, loff_t *ppos)
 853 {
 854         struct wl1271 *wl = file->private_data;
 855         struct wl12xx_vif *wlvif;
 856         unsigned long value;
 857         int ret;
 858
 859         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 860         if (ret < 0) {
 861                 wl1271_warning("illegal value in rx_streaming_interval!");
 862                 return -EINVAL;
 863         }
 864
 865         /* valid values: 0, 10-100 */
 866         if (value && (value < 10 || value > 100)) {
 867                 wl1271_warning("value is not in range!");
 868                 return -ERANGE;
 869         }
 870
 871         mutex_lock(&wl->mutex);
 872
 873         wl->conf.rx_streaming.interval = value;
 874
 875         ret = wl1271_ps_elp_wakeup(wl);
 876         if (ret < 0)
 877                 goto out;
 878
 879         wl12xx_for_each_wlvif_sta(wl, wlvif) {
 880                 wl1271_recalc_rx_streaming(wl, wlvif);
 881         }
 882
 883         wl1271_ps_elp_sleep(wl);
 884 out:
 885         mutex_unlock(&wl->mutex);
 886         return count;
 887 }
 888
 889 static ssize_t rx_streaming_interval_read(struct file *file,
 890                             char __user *userbuf,
 891                             size_t count, loff_t *ppos)
 892 {
 893         struct wl1271 *wl = file->private_data;
 894         return wl1271_format_buffer(userbuf, count, ppos,
 895                                     "%d\n", wl->conf.rx_streaming.interval);
 896 }
 897
 898 static const struct file_operations rx_streaming_interval_ops = {
 899         .read = rx_streaming_interval_read,
 900         .write = rx_streaming_interval_write,
 901         .open = simple_open,
 902         .llseek = default_llseek,
 903 };
 904
 905 static ssize_t rx_streaming_always_write(struct file *file,
 906                            const char __user *user_buf,
 907                            size_t count, loff_t *ppos)
 908 {
 909         struct wl1271 *wl = file->private_data;
 910         struct wl12xx_vif *wlvif;
 911         unsigned long value;
 912         int ret;
 913
 914         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 915         if (ret < 0) {
 916                 wl1271_warning("illegal value in rx_streaming_write!");
 917                 return -EINVAL;
 918         }
 919
 920         /* valid values: 0, 10-100 */
 921         if (!(value == 0 || value == 1)) {
 922                 wl1271_warning("value is not in valid!");
 923                 return -EINVAL;
 924         }
 925
 926         mutex_lock(&wl->mutex);
 927
 928         wl->conf.rx_streaming.always = value;
 929
 930         ret = wl1271_ps_elp_wakeup(wl);
 931         if (ret < 0)
 932                 goto out;
 933
 934         wl12xx_for_each_wlvif_sta(wl, wlvif) {
 935                 wl1271_recalc_rx_streaming(wl, wlvif);
 936         }
 937
 938         wl1271_ps_elp_sleep(wl);
 939 out:
 940         mutex_unlock(&wl->mutex);
 941         return count;
 942 }
 943
 944 static ssize_t rx_streaming_always_read(struct file *file,
 945                             char __user *userbuf,
 946                             size_t count, loff_t *ppos)
 947 {
 948         struct wl1271 *wl = file->private_data;
 949         return wl1271_format_buffer(userbuf, count, ppos,
 950                                     "%d\n", wl->conf.rx_streaming.always);
 951 }
 952
 953 static const struct file_operations rx_streaming_always_ops = {
 954         .read = rx_streaming_always_read,
 955         .write = rx_streaming_always_write,
 956         .open = simple_open,
 957         .llseek = default_llseek,
 958 };
 959
 960 static ssize_t beacon_filtering_write(struct file *file,
 961                                       const char __user *user_buf,
 962                                       size_t count, loff_t *ppos)
 963 {
 964         struct wl1271 *wl = file->private_data;
 965         struct wl12xx_vif *wlvif;
 966         char buf[10];
 967         size_t len;
 968         unsigned long value;
 969         int ret;
 970
 971         len = min(count, sizeof(buf) - 1);
 972         if (copy_from_user(buf, user_buf, len))
 973                 return -EFAULT;
 974         buf[len] = '\0';
 975
 976         ret = kstrtoul(buf, 0, &value);
 977         if (ret < 0) {
 978                 wl1271_warning("illegal value for beacon_filtering!");
 979                 return -EINVAL;
 980         }
 981
 982         mutex_lock(&wl->mutex);
 983
 984         ret = wl1271_ps_elp_wakeup(wl);
 985         if (ret < 0)
 986                 goto out;
 987
 988         wl12xx_for_each_wlvif(wl, wlvif) {
 989                 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value);
 990         }
 991
 992         wl1271_ps_elp_sleep(wl);
 993 out:
 994         mutex_unlock(&wl->mutex);
 995         return count;
 996 }
 997
 998 static const struct file_operations beacon_filtering_ops = {
 999         .write = beacon_filtering_write,
1000         .open = simple_open,
1001         .llseek = default_llseek,
1002 };
1003
1004 static int wl1271_debugfs_add_files(struct wl1271 *wl,
1005                                      struct dentry *rootdir)
1006 {
1007         int ret = 0;
1008         struct dentry *entry, *stats, *streaming;
1009
1010         stats = debugfs_create_dir("fw-statistics", rootdir);
1011         if (!stats || IS_ERR(stats)) {
1012                 entry = stats;
1013                 goto err;
1014         }
1015
1016         DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
1017
1018         DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
1019         DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
1020         DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
1021         DEBUGFS_FWSTATS_ADD(rx, dropped);
1022         DEBUGFS_FWSTATS_ADD(rx, fcs_err);
1023         DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
1024         DEBUGFS_FWSTATS_ADD(rx, path_reset);
1025         DEBUGFS_FWSTATS_ADD(rx, reset_counter);
1026
1027         DEBUGFS_FWSTATS_ADD(dma, rx_requested);
1028         DEBUGFS_FWSTATS_ADD(dma, rx_errors);
1029         DEBUGFS_FWSTATS_ADD(dma, tx_requested);
1030         DEBUGFS_FWSTATS_ADD(dma, tx_errors);
1031
1032         DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
1033         DEBUGFS_FWSTATS_ADD(isr, fiqs);
1034         DEBUGFS_FWSTATS_ADD(isr, rx_headers);
1035         DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
1036         DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
1037         DEBUGFS_FWSTATS_ADD(isr, irqs);
1038         DEBUGFS_FWSTATS_ADD(isr, tx_procs);
1039         DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
1040         DEBUGFS_FWSTATS_ADD(isr, dma0_done);
1041         DEBUGFS_FWSTATS_ADD(isr, dma1_done);
1042         DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
1043         DEBUGFS_FWSTATS_ADD(isr, commands);
1044         DEBUGFS_FWSTATS_ADD(isr, rx_procs);
1045         DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
1046         DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
1047         DEBUGFS_FWSTATS_ADD(isr, pci_pm);
1048         DEBUGFS_FWSTATS_ADD(isr, wakeups);
1049         DEBUGFS_FWSTATS_ADD(isr, low_rssi);
1050
1051         DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
1052         DEBUGFS_FWSTATS_ADD(wep, default_key_count);
1053         /* skipping wep.reserved */
1054         DEBUGFS_FWSTATS_ADD(wep, key_not_found);
1055         DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
1056         DEBUGFS_FWSTATS_ADD(wep, packets);
1057         DEBUGFS_FWSTATS_ADD(wep, interrupt);
1058
1059         DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
1060         DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
1061         DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
1062         DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
1063         DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
1064         DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
1065         DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
1066         DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
1067         DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
1068         DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
1069         DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
1070         DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
1071         /* skipping cont_miss_bcns_spread for now */
1072         DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);
1073
1074         DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
1075         DEBUGFS_FWSTATS_ADD(mic, calc_failure);
1076
1077         DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
1078         DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
1079         DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
1080         DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
1081         DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
1082         DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);
1083
1084         DEBUGFS_FWSTATS_ADD(event, heart_beat);
1085         DEBUGFS_FWSTATS_ADD(event, calibration);
1086         DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
1087         DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
1088         DEBUGFS_FWSTATS_ADD(event, rx_pool);
1089         DEBUGFS_FWSTATS_ADD(event, oom_late);
1090         DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
1091         DEBUGFS_FWSTATS_ADD(event, tx_stuck);
1092
1093         DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
1094         DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
1095         DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
1096         DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
1097         DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
1098         DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
1099         DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);
1100
1101         DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
1102         DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
1103         DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
1104         DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
1105         DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
1106
1107         DEBUGFS_ADD(tx_queue_len, rootdir);
1108         DEBUGFS_ADD(retry_count, rootdir);
1109         DEBUGFS_ADD(excessive_retries, rootdir);
1110
1111         DEBUGFS_ADD(gpio_power, rootdir);
1112         DEBUGFS_ADD(start_recovery, rootdir);
1113         DEBUGFS_ADD(driver_state, rootdir);
1114         DEBUGFS_ADD(vifs_state, rootdir);
1115         DEBUGFS_ADD(dtim_interval, rootdir);
1116         DEBUGFS_ADD(suspend_dtim_interval, rootdir);
1117         DEBUGFS_ADD(beacon_interval, rootdir);
1118         DEBUGFS_ADD(beacon_filtering, rootdir);
1119         DEBUGFS_ADD(dynamic_ps_timeout, rootdir);
1120         DEBUGFS_ADD(forced_ps, rootdir);
1121         DEBUGFS_ADD(split_scan_timeout, rootdir);
1122
1123         streaming = debugfs_create_dir("rx_streaming", rootdir);
1124         if (!streaming || IS_ERR(streaming))
1125                 goto err;
1126
1127         DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming);
1128         DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming);
1129
1130
1131         return 0;
1132
1133 err:
1134         if (IS_ERR(entry))
1135                 ret = PTR_ERR(entry);
1136         else
1137                 ret = -ENOMEM;
1138
1139         return ret;
1140 }
1141
1142 void wl1271_debugfs_reset(struct wl1271 *wl)
1143 {
1144         if (!wl->stats.fw_stats)
1145                 return;
1146
1147         memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
1148         wl->stats.retry_count = 0;
1149         wl->stats.excessive_retries = 0;
1150 }
1151
1152 int wl1271_debugfs_init(struct wl1271 *wl)
1153 {
1154         int ret;
1155         struct dentry *rootdir;
1156
1157         rootdir = debugfs_create_dir(KBUILD_MODNAME,
1158                                      wl->hw->wiphy->debugfsdir);
1159
1160         if (IS_ERR(rootdir)) {
1161                 ret = PTR_ERR(rootdir);
1162                 goto err;
1163         }
1164
1165         wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats),
1166                                       GFP_KERNEL);
1167
1168         if (!wl->stats.fw_stats) {
1169                 ret = -ENOMEM;
1170                 goto err_fw;
1171         }
1172
1173         wl->stats.fw_stats_update = jiffies;
1174
1175         ret = wl1271_debugfs_add_files(wl, rootdir);
1176
1177         if (ret < 0)
1178                 goto err_file;
1179
1180         return 0;
1181
1182 err_file:
1183         kfree(wl->stats.fw_stats);
1184         wl->stats.fw_stats = NULL;
1185
1186 err_fw:
1187         debugfs_remove_recursive(rootdir);
1188
1189 err:
1190         return ret;
1191 }
1192
1193 void wl1271_debugfs_exit(struct wl1271 *wl)
1194 {
1195         kfree(wl->stats.fw_stats);
1196         wl->stats.fw_stats = NULL;
1197 }