drivers/net/wireless/wl12xx/wl1251_debugfs.c

   1 /*
   2  * This file is part of wl1251
   3  *
   4  * Copyright (C) 2009 Nokia Corporation
   5  *
   6  * Contact: Kalle Valo <kalle.valo@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 "wl1251_debugfs.h"
  25
  26 #include <linux/skbuff.h>
  27
  28 #include "wl1251.h"
  29 #include "wl1251_acx.h"
  30 #include "wl1251_ps.h"
  31
  32 /* ms */
  33 #define WL1251_DEBUGFS_STATS_LIFETIME 1000
  34
  35 /* debugfs macros idea from mac80211 */
  36
  37 #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...)              \
  38 static ssize_t name## _read(struct file *file, char __user *userbuf,    \
  39                             size_t count, loff_t *ppos)                 \
  40 {                                                                       \
  41         struct wl1251 *wl = file->private_data;                         \
  42         char buf[buflen];                                               \
  43         int res;                                                        \
  44                                                                         \
  45         res = scnprintf(buf, buflen, fmt "\n", ##value);                \
  46         return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
  47 }                                                                       \
  48                                                                         \
  49 static const struct file_operations name## _ops = {                     \
  50         .read = name## _read,                                           \
  51         .open = wl1251_open_file_generic,                               \
  52 };
  53
  54 #define DEBUGFS_ADD(name, parent)                                       \
  55         wl->debugfs.name = debugfs_create_file(#name, 0400, parent,     \
  56                                                wl, &name## _ops);       \
  57         if (IS_ERR(wl->debugfs.name)) {                                 \
  58                 ret = PTR_ERR(wl->debugfs.name);                        \
  59                 wl->debugfs.name = NULL;                                \
  60                 goto out;                                               \
  61         }
  62
  63 #define DEBUGFS_DEL(name)                                               \
  64         do {                                                            \
  65                 debugfs_remove(wl->debugfs.name);                       \
  66                 wl->debugfs.name = NULL;                                \
  67         } while (0)
  68
  69 #define DEBUGFS_FWSTATS_FILE(sub, name, buflen, fmt)                    \
  70 static ssize_t sub## _ ##name## _read(struct file *file,                \
  71                                       char __user *userbuf,             \
  72                                       size_t count, loff_t *ppos)       \
  73 {                                                                       \
  74         struct wl1251 *wl = file->private_data;                         \
  75         char buf[buflen];                                               \
  76         int res;                                                        \
  77                                                                         \
  78         wl1251_debugfs_update_stats(wl);                                \
  79                                                                         \
  80         res = scnprintf(buf, buflen, fmt "\n",                          \
  81                         wl->stats.fw_stats->sub.name);                  \
  82         return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
  83 }                                                                       \
  84                                                                         \
  85 static const struct file_operations sub## _ ##name## _ops = {           \
  86         .read = sub## _ ##name## _read,                                 \
  87         .open = wl1251_open_file_generic,                               \
  88 };
  89
  90 #define DEBUGFS_FWSTATS_ADD(sub, name)                          \
  91         DEBUGFS_ADD(sub## _ ##name, wl->debugfs.fw_statistics)
  92
  93 #define DEBUGFS_FWSTATS_DEL(sub, name)                          \
  94         DEBUGFS_DEL(sub## _ ##name)
  95
  96 static void wl1251_debugfs_update_stats(struct wl1251 *wl)
  97 {
  98         int ret;
  99
 100         mutex_lock(&wl->mutex);
 101
 102         ret = wl1251_ps_elp_wakeup(wl);
 103         if (ret < 0)
 104                 goto out;
 105
 106         if (wl->state == WL1251_STATE_ON &&
 107             time_after(jiffies, wl->stats.fw_stats_update +
 108                        msecs_to_jiffies(WL1251_DEBUGFS_STATS_LIFETIME))) {
 109                 wl1251_acx_statistics(wl, wl->stats.fw_stats);
 110                 wl->stats.fw_stats_update = jiffies;
 111         }
 112
 113         wl1251_ps_elp_sleep(wl);
 114
 115 out:
 116         mutex_unlock(&wl->mutex);
 117 }
 118
 119 static int wl1251_open_file_generic(struct inode *inode, struct file *file)
 120 {
 121         file->private_data = inode->i_private;
 122         return 0;
 123 }
 124
 125 DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, 20, "%u");
 126
 127 DEBUGFS_FWSTATS_FILE(rx, out_of_mem, 20, "%u");
 128 DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, 20, "%u");
 129 DEBUGFS_FWSTATS_FILE(rx, hw_stuck, 20, "%u");
 130 DEBUGFS_FWSTATS_FILE(rx, dropped, 20, "%u");
 131 DEBUGFS_FWSTATS_FILE(rx, fcs_err, 20, "%u");
 132 DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, 20, "%u");
 133 DEBUGFS_FWSTATS_FILE(rx, path_reset, 20, "%u");
 134 DEBUGFS_FWSTATS_FILE(rx, reset_counter, 20, "%u");
 135
 136 DEBUGFS_FWSTATS_FILE(dma, rx_requested, 20, "%u");
 137 DEBUGFS_FWSTATS_FILE(dma, rx_errors, 20, "%u");
 138 DEBUGFS_FWSTATS_FILE(dma, tx_requested, 20, "%u");
 139 DEBUGFS_FWSTATS_FILE(dma, tx_errors, 20, "%u");
 140
 141 DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, 20, "%u");
 142 DEBUGFS_FWSTATS_FILE(isr, fiqs, 20, "%u");
 143 DEBUGFS_FWSTATS_FILE(isr, rx_headers, 20, "%u");
 144 DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, 20, "%u");
 145 DEBUGFS_FWSTATS_FILE(isr, rx_rdys, 20, "%u");
 146 DEBUGFS_FWSTATS_FILE(isr, irqs, 20, "%u");
 147 DEBUGFS_FWSTATS_FILE(isr, tx_procs, 20, "%u");
 148 DEBUGFS_FWSTATS_FILE(isr, decrypt_done, 20, "%u");
 149 DEBUGFS_FWSTATS_FILE(isr, dma0_done, 20, "%u");
 150 DEBUGFS_FWSTATS_FILE(isr, dma1_done, 20, "%u");
 151 DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, 20, "%u");
 152 DEBUGFS_FWSTATS_FILE(isr, commands, 20, "%u");
 153 DEBUGFS_FWSTATS_FILE(isr, rx_procs, 20, "%u");
 154 DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, 20, "%u");
 155 DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, 20, "%u");
 156 DEBUGFS_FWSTATS_FILE(isr, pci_pm, 20, "%u");
 157 DEBUGFS_FWSTATS_FILE(isr, wakeups, 20, "%u");
 158 DEBUGFS_FWSTATS_FILE(isr, low_rssi, 20, "%u");
 159
 160 DEBUGFS_FWSTATS_FILE(wep, addr_key_count, 20, "%u");
 161 DEBUGFS_FWSTATS_FILE(wep, default_key_count, 20, "%u");
 162 /* skipping wep.reserved */
 163 DEBUGFS_FWSTATS_FILE(wep, key_not_found, 20, "%u");
 164 DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, 20, "%u");
 165 DEBUGFS_FWSTATS_FILE(wep, packets, 20, "%u");
 166 DEBUGFS_FWSTATS_FILE(wep, interrupt, 20, "%u");
 167
 168 DEBUGFS_FWSTATS_FILE(pwr, ps_enter, 20, "%u");
 169 DEBUGFS_FWSTATS_FILE(pwr, elp_enter, 20, "%u");
 170 DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, 20, "%u");
 171 DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, 20, "%u");
 172 DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, 20, "%u");
 173 DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, 20, "%u");
 174 DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, 20, "%u");
 175 DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, 20, "%u");
 176 DEBUGFS_FWSTATS_FILE(pwr, power_save_off, 20, "%u");
 177 DEBUGFS_FWSTATS_FILE(pwr, enable_ps, 20, "%u");
 178 DEBUGFS_FWSTATS_FILE(pwr, disable_ps, 20, "%u");
 179 DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, 20, "%u");
 180 /* skipping cont_miss_bcns_spread for now */
 181 DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, 20, "%u");
 182
 183 DEBUGFS_FWSTATS_FILE(mic, rx_pkts, 20, "%u");
 184 DEBUGFS_FWSTATS_FILE(mic, calc_failure, 20, "%u");
 185
 186 DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, 20, "%u");
 187 DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, 20, "%u");
 188 DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, 20, "%u");
 189 DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, 20, "%u");
 190 DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, 20, "%u");
 191 DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, 20, "%u");
 192
 193 DEBUGFS_FWSTATS_FILE(event, heart_beat, 20, "%u");
 194 DEBUGFS_FWSTATS_FILE(event, calibration, 20, "%u");
 195 DEBUGFS_FWSTATS_FILE(event, rx_mismatch, 20, "%u");
 196 DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, 20, "%u");
 197 DEBUGFS_FWSTATS_FILE(event, rx_pool, 20, "%u");
 198 DEBUGFS_FWSTATS_FILE(event, oom_late, 20, "%u");
 199 DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, 20, "%u");
 200 DEBUGFS_FWSTATS_FILE(event, tx_stuck, 20, "%u");
 201
 202 DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, 20, "%u");
 203 DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, 20, "%u");
 204 DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, 20, "%u");
 205 DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, 20, "%u");
 206 DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, 20, "%u");
 207 DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, 20, "%u");
 208 DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, 20, "%u");
 209
 210 DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, 20, "%u");
 211 DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, 20, "%u");
 212 DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data,
 213                      20, "%u");
 214 DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, 20, "%u");
 215 DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, 20, "%u");
 216
 217 DEBUGFS_READONLY_FILE(retry_count, 20, "%u", wl->stats.retry_count);
 218 DEBUGFS_READONLY_FILE(excessive_retries, 20, "%u",
 219                       wl->stats.excessive_retries);
 220
 221 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
 222                                  size_t count, loff_t *ppos)
 223 {
 224         struct wl1251 *wl = file->private_data;
 225         u32 queue_len;
 226         char buf[20];
 227         int res;
 228
 229         queue_len = skb_queue_len(&wl->tx_queue);
 230
 231         res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
 232         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
 233 }
 234
 235 static const struct file_operations tx_queue_len_ops = {
 236         .read = tx_queue_len_read,
 237         .open = wl1251_open_file_generic,
 238 };
 239
 240 static ssize_t tx_queue_status_read(struct file *file, char __user *userbuf,
 241                                     size_t count, loff_t *ppos)
 242 {
 243         struct wl1251 *wl = file->private_data;
 244         char buf[3], status;
 245         int len;
 246
 247         if (wl->tx_queue_stopped)
 248                 status = 's';
 249         else
 250                 status = 'r';
 251
 252         len = scnprintf(buf, sizeof(buf), "%c\n", status);
 253         return simple_read_from_buffer(userbuf, count, ppos, buf, len);
 254 }
 255
 256 static const struct file_operations tx_queue_status_ops = {
 257         .read = tx_queue_status_read,
 258         .open = wl1251_open_file_generic,
 259 };
 260
 261 static void wl1251_debugfs_delete_files(struct wl1251 *wl)
 262 {
 263         DEBUGFS_FWSTATS_DEL(tx, internal_desc_overflow);
 264
 265         DEBUGFS_FWSTATS_DEL(rx, out_of_mem);
 266         DEBUGFS_FWSTATS_DEL(rx, hdr_overflow);
 267         DEBUGFS_FWSTATS_DEL(rx, hw_stuck);
 268         DEBUGFS_FWSTATS_DEL(rx, dropped);
 269         DEBUGFS_FWSTATS_DEL(rx, fcs_err);
 270         DEBUGFS_FWSTATS_DEL(rx, xfr_hint_trig);
 271         DEBUGFS_FWSTATS_DEL(rx, path_reset);
 272         DEBUGFS_FWSTATS_DEL(rx, reset_counter);
 273
 274         DEBUGFS_FWSTATS_DEL(dma, rx_requested);
 275         DEBUGFS_FWSTATS_DEL(dma, rx_errors);
 276         DEBUGFS_FWSTATS_DEL(dma, tx_requested);
 277         DEBUGFS_FWSTATS_DEL(dma, tx_errors);
 278
 279         DEBUGFS_FWSTATS_DEL(isr, cmd_cmplt);
 280         DEBUGFS_FWSTATS_DEL(isr, fiqs);
 281         DEBUGFS_FWSTATS_DEL(isr, rx_headers);
 282         DEBUGFS_FWSTATS_DEL(isr, rx_mem_overflow);
 283         DEBUGFS_FWSTATS_DEL(isr, rx_rdys);
 284         DEBUGFS_FWSTATS_DEL(isr, irqs);
 285         DEBUGFS_FWSTATS_DEL(isr, tx_procs);
 286         DEBUGFS_FWSTATS_DEL(isr, decrypt_done);
 287         DEBUGFS_FWSTATS_DEL(isr, dma0_done);
 288         DEBUGFS_FWSTATS_DEL(isr, dma1_done);
 289         DEBUGFS_FWSTATS_DEL(isr, tx_exch_complete);
 290         DEBUGFS_FWSTATS_DEL(isr, commands);
 291         DEBUGFS_FWSTATS_DEL(isr, rx_procs);
 292         DEBUGFS_FWSTATS_DEL(isr, hw_pm_mode_changes);
 293         DEBUGFS_FWSTATS_DEL(isr, host_acknowledges);
 294         DEBUGFS_FWSTATS_DEL(isr, pci_pm);
 295         DEBUGFS_FWSTATS_DEL(isr, wakeups);
 296         DEBUGFS_FWSTATS_DEL(isr, low_rssi);
 297
 298         DEBUGFS_FWSTATS_DEL(wep, addr_key_count);
 299         DEBUGFS_FWSTATS_DEL(wep, default_key_count);
 300         /* skipping wep.reserved */
 301         DEBUGFS_FWSTATS_DEL(wep, key_not_found);
 302         DEBUGFS_FWSTATS_DEL(wep, decrypt_fail);
 303         DEBUGFS_FWSTATS_DEL(wep, packets);
 304         DEBUGFS_FWSTATS_DEL(wep, interrupt);
 305
 306         DEBUGFS_FWSTATS_DEL(pwr, ps_enter);
 307         DEBUGFS_FWSTATS_DEL(pwr, elp_enter);
 308         DEBUGFS_FWSTATS_DEL(pwr, missing_bcns);
 309         DEBUGFS_FWSTATS_DEL(pwr, wake_on_host);
 310         DEBUGFS_FWSTATS_DEL(pwr, wake_on_timer_exp);
 311         DEBUGFS_FWSTATS_DEL(pwr, tx_with_ps);
 312         DEBUGFS_FWSTATS_DEL(pwr, tx_without_ps);
 313         DEBUGFS_FWSTATS_DEL(pwr, rcvd_beacons);
 314         DEBUGFS_FWSTATS_DEL(pwr, power_save_off);
 315         DEBUGFS_FWSTATS_DEL(pwr, enable_ps);
 316         DEBUGFS_FWSTATS_DEL(pwr, disable_ps);
 317         DEBUGFS_FWSTATS_DEL(pwr, fix_tsf_ps);
 318         /* skipping cont_miss_bcns_spread for now */
 319         DEBUGFS_FWSTATS_DEL(pwr, rcvd_awake_beacons);
 320
 321         DEBUGFS_FWSTATS_DEL(mic, rx_pkts);
 322         DEBUGFS_FWSTATS_DEL(mic, calc_failure);
 323
 324         DEBUGFS_FWSTATS_DEL(aes, encrypt_fail);
 325         DEBUGFS_FWSTATS_DEL(aes, decrypt_fail);
 326         DEBUGFS_FWSTATS_DEL(aes, encrypt_packets);
 327         DEBUGFS_FWSTATS_DEL(aes, decrypt_packets);
 328         DEBUGFS_FWSTATS_DEL(aes, encrypt_interrupt);
 329         DEBUGFS_FWSTATS_DEL(aes, decrypt_interrupt);
 330
 331         DEBUGFS_FWSTATS_DEL(event, heart_beat);
 332         DEBUGFS_FWSTATS_DEL(event, calibration);
 333         DEBUGFS_FWSTATS_DEL(event, rx_mismatch);
 334         DEBUGFS_FWSTATS_DEL(event, rx_mem_empty);
 335         DEBUGFS_FWSTATS_DEL(event, rx_pool);
 336         DEBUGFS_FWSTATS_DEL(event, oom_late);
 337         DEBUGFS_FWSTATS_DEL(event, phy_transmit_error);
 338         DEBUGFS_FWSTATS_DEL(event, tx_stuck);
 339
 340         DEBUGFS_FWSTATS_DEL(ps, pspoll_timeouts);
 341         DEBUGFS_FWSTATS_DEL(ps, upsd_timeouts);
 342         DEBUGFS_FWSTATS_DEL(ps, upsd_max_sptime);
 343         DEBUGFS_FWSTATS_DEL(ps, upsd_max_apturn);
 344         DEBUGFS_FWSTATS_DEL(ps, pspoll_max_apturn);
 345         DEBUGFS_FWSTATS_DEL(ps, pspoll_utilization);
 346         DEBUGFS_FWSTATS_DEL(ps, upsd_utilization);
 347
 348         DEBUGFS_FWSTATS_DEL(rxpipe, rx_prep_beacon_drop);
 349         DEBUGFS_FWSTATS_DEL(rxpipe, descr_host_int_trig_rx_data);
 350         DEBUGFS_FWSTATS_DEL(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
 351         DEBUGFS_FWSTATS_DEL(rxpipe, missed_beacon_host_int_trig_rx_data);
 352         DEBUGFS_FWSTATS_DEL(rxpipe, tx_xfr_host_int_trig_rx_data);
 353
 354         DEBUGFS_DEL(tx_queue_len);
 355         DEBUGFS_DEL(tx_queue_status);
 356         DEBUGFS_DEL(retry_count);
 357         DEBUGFS_DEL(excessive_retries);
 358 }
 359
 360 static int wl1251_debugfs_add_files(struct wl1251 *wl)
 361 {
 362         int ret = 0;
 363
 364         DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
 365
 366         DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
 367         DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
 368         DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
 369         DEBUGFS_FWSTATS_ADD(rx, dropped);
 370         DEBUGFS_FWSTATS_ADD(rx, fcs_err);
 371         DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
 372         DEBUGFS_FWSTATS_ADD(rx, path_reset);
 373         DEBUGFS_FWSTATS_ADD(rx, reset_counter);
 374
 375         DEBUGFS_FWSTATS_ADD(dma, rx_requested);
 376         DEBUGFS_FWSTATS_ADD(dma, rx_errors);
 377         DEBUGFS_FWSTATS_ADD(dma, tx_requested);
 378         DEBUGFS_FWSTATS_ADD(dma, tx_errors);
 379
 380         DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
 381         DEBUGFS_FWSTATS_ADD(isr, fiqs);
 382         DEBUGFS_FWSTATS_ADD(isr, rx_headers);
 383         DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
 384         DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
 385         DEBUGFS_FWSTATS_ADD(isr, irqs);
 386         DEBUGFS_FWSTATS_ADD(isr, tx_procs);
 387         DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
 388         DEBUGFS_FWSTATS_ADD(isr, dma0_done);
 389         DEBUGFS_FWSTATS_ADD(isr, dma1_done);
 390         DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
 391         DEBUGFS_FWSTATS_ADD(isr, commands);
 392         DEBUGFS_FWSTATS_ADD(isr, rx_procs);
 393         DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
 394         DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
 395         DEBUGFS_FWSTATS_ADD(isr, pci_pm);
 396         DEBUGFS_FWSTATS_ADD(isr, wakeups);
 397         DEBUGFS_FWSTATS_ADD(isr, low_rssi);
 398
 399         DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
 400         DEBUGFS_FWSTATS_ADD(wep, default_key_count);
 401         /* skipping wep.reserved */
 402         DEBUGFS_FWSTATS_ADD(wep, key_not_found);
 403         DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
 404         DEBUGFS_FWSTATS_ADD(wep, packets);
 405         DEBUGFS_FWSTATS_ADD(wep, interrupt);
 406
 407         DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
 408         DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
 409         DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
 410         DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
 411         DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
 412         DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
 413         DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
 414         DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
 415         DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
 416         DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
 417         DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
 418         DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
 419         /* skipping cont_miss_bcns_spread for now */
 420         DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);
 421
 422         DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
 423         DEBUGFS_FWSTATS_ADD(mic, calc_failure);
 424
 425         DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
 426         DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
 427         DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
 428         DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
 429         DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
 430         DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);
 431
 432         DEBUGFS_FWSTATS_ADD(event, heart_beat);
 433         DEBUGFS_FWSTATS_ADD(event, calibration);
 434         DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
 435         DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
 436         DEBUGFS_FWSTATS_ADD(event, rx_pool);
 437         DEBUGFS_FWSTATS_ADD(event, oom_late);
 438         DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
 439         DEBUGFS_FWSTATS_ADD(event, tx_stuck);
 440
 441         DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
 442         DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
 443         DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
 444         DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
 445         DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
 446         DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
 447         DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);
 448
 449         DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
 450         DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
 451         DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
 452         DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
 453         DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
 454
 455         DEBUGFS_ADD(tx_queue_len, wl->debugfs.rootdir);
 456         DEBUGFS_ADD(tx_queue_status, wl->debugfs.rootdir);
 457         DEBUGFS_ADD(retry_count, wl->debugfs.rootdir);
 458         DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir);
 459
 460 out:
 461         if (ret < 0)
 462                 wl1251_debugfs_delete_files(wl);
 463
 464         return ret;
 465 }
 466
 467 void wl1251_debugfs_reset(struct wl1251 *wl)
 468 {
 469         memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
 470         wl->stats.retry_count = 0;
 471         wl->stats.excessive_retries = 0;
 472 }
 473
 474 int wl1251_debugfs_init(struct wl1251 *wl)
 475 {
 476         int ret;
 477
 478         wl->debugfs.rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);
 479
 480         if (IS_ERR(wl->debugfs.rootdir)) {
 481                 ret = PTR_ERR(wl->debugfs.rootdir);
 482                 wl->debugfs.rootdir = NULL;
 483                 goto err;
 484         }
 485
 486         wl->debugfs.fw_statistics = debugfs_create_dir("fw-statistics",
 487                                                        wl->debugfs.rootdir);
 488
 489         if (IS_ERR(wl->debugfs.fw_statistics)) {
 490                 ret = PTR_ERR(wl->debugfs.fw_statistics);
 491                 wl->debugfs.fw_statistics = NULL;
 492                 goto err_root;
 493         }
 494
 495         wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats),
 496                                       GFP_KERNEL);
 497
 498         if (!wl->stats.fw_stats) {
 499                 ret = -ENOMEM;
 500                 goto err_fw;
 501         }
 502
 503         wl->stats.fw_stats_update = jiffies;
 504
 505         ret = wl1251_debugfs_add_files(wl);
 506
 507         if (ret < 0)
 508                 goto err_file;
 509
 510         return 0;
 511
 512 err_file:
 513         kfree(wl->stats.fw_stats);
 514         wl->stats.fw_stats = NULL;
 515
 516 err_fw:
 517         debugfs_remove(wl->debugfs.fw_statistics);
 518         wl->debugfs.fw_statistics = NULL;
 519
 520 err_root:
 521         debugfs_remove(wl->debugfs.rootdir);
 522         wl->debugfs.rootdir = NULL;
 523
 524 err:
 525         return ret;
 526 }
 527
 528 void wl1251_debugfs_exit(struct wl1251 *wl)
 529 {
 530         wl1251_debugfs_delete_files(wl);
 531
 532         kfree(wl->stats.fw_stats);
 533         wl->stats.fw_stats = NULL;
 534
 535         debugfs_remove(wl->debugfs.fw_statistics);
 536         wl->debugfs.fw_statistics = NULL;
 537
 538         debugfs_remove(wl->debugfs.rootdir);
 539         wl->debugfs.rootdir = NULL;
 540
 541 }