drivers/net/wireless/ti/wl1251/debugfs.c

   1 /*
   2  * This file is part of wl1251
   3  *
   4  * Copyright (C) 2009 Nokia Corporation
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * version 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  18  * 02110-1301 USA
  19  *
  20  */
  21
  22 #include "debugfs.h"
  23
  24 #include <linux/skbuff.h>
  25 #include <linux/slab.h>
  26
  27 #include "wl1251.h"
  28 #include "acx.h"
  29 #include "ps.h"
  30
  31 /* ms */
  32 #define WL1251_DEBUGFS_STATS_LIFETIME 1000
  33
  34 /* debugfs macros idea from mac80211 */
  35
  36 #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...)              \
  37 static ssize_t name## _read(struct file *file, char __user *userbuf,    \
  38                             size_t count, loff_t *ppos)                 \
  39 {                                                                       \
  40         struct wl1251 *wl = file->private_data;                         \
  41         char buf[buflen];                                               \
  42         int res;                                                        \
  43                                                                         \
  44         res = scnprintf(buf, buflen, fmt "\n", ##value);                \
  45         return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
  46 }                                                                       \
  47                                                                         \
  48 static const struct file_operations name## _ops = {                     \
  49         .read = name## _read,                                           \
  50         .open = simple_open,                                            \
  51         .llseek = generic_file_llseek,                                  \
  52 };
  53
  54 #define DEBUGFS_ADD(name, parent)                                       \
  55         wl->debugfs.name = debugfs_create_file(#name, 0400, parent,     \
  56                                                wl, &name## _ops);       \
  57
  58 #define DEBUGFS_DEL(name)                                               \
  59         do {                                                            \
  60                 debugfs_remove(wl->debugfs.name);                       \
  61                 wl->debugfs.name = NULL;                                \
  62         } while (0)
  63
  64 #define DEBUGFS_FWSTATS_FILE(sub, name, buflen, fmt)                    \
  65 static ssize_t sub## _ ##name## _read(struct file *file,                \
  66                                       char __user *userbuf,             \
  67                                       size_t count, loff_t *ppos)       \
  68 {                                                                       \
  69         struct wl1251 *wl = file->private_data;                         \
  70         char buf[buflen];                                               \
  71         int res;                                                        \
  72                                                                         \
  73         wl1251_debugfs_update_stats(wl);                                \
  74                                                                         \
  75         res = scnprintf(buf, buflen, fmt "\n",                          \
  76                         wl->stats.fw_stats->sub.name);                  \
  77         return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
  78 }                                                                       \
  79                                                                         \
  80 static const struct file_operations sub## _ ##name## _ops = {           \
  81         .read = sub## _ ##name## _read,                                 \
  82         .open = simple_open,                                            \
  83         .llseek = generic_file_llseek,                                  \
  84 };
  85
  86 #define DEBUGFS_FWSTATS_ADD(sub, name)                          \
  87         DEBUGFS_ADD(sub## _ ##name, wl->debugfs.fw_statistics)
  88
  89 #define DEBUGFS_FWSTATS_DEL(sub, name)                          \
  90         DEBUGFS_DEL(sub## _ ##name)
  91
  92 static void wl1251_debugfs_update_stats(struct wl1251 *wl)
  93 {
  94         int ret;
  95
  96         mutex_lock(&wl->mutex);
  97
  98         ret = wl1251_ps_elp_wakeup(wl);
  99         if (ret < 0)
 100                 goto out;
 101
 102         if (wl->state == WL1251_STATE_ON &&
 103             time_after(jiffies, wl->stats.fw_stats_update +
 104                        msecs_to_jiffies(WL1251_DEBUGFS_STATS_LIFETIME))) {
 105                 wl1251_acx_statistics(wl, wl->stats.fw_stats);
 106                 wl->stats.fw_stats_update = jiffies;
 107         }
 108
 109         wl1251_ps_elp_sleep(wl);
 110
 111 out:
 112         mutex_unlock(&wl->mutex);
 113 }
 114
 115 DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, 20, "%u");
 116
 117 DEBUGFS_FWSTATS_FILE(rx, out_of_mem, 20, "%u");
 118 DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, 20, "%u");
 119 DEBUGFS_FWSTATS_FILE(rx, hw_stuck, 20, "%u");
 120 DEBUGFS_FWSTATS_FILE(rx, dropped, 20, "%u");
 121 DEBUGFS_FWSTATS_FILE(rx, fcs_err, 20, "%u");
 122 DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, 20, "%u");
 123 DEBUGFS_FWSTATS_FILE(rx, path_reset, 20, "%u");
 124 DEBUGFS_FWSTATS_FILE(rx, reset_counter, 20, "%u");
 125
 126 DEBUGFS_FWSTATS_FILE(dma, rx_requested, 20, "%u");
 127 DEBUGFS_FWSTATS_FILE(dma, rx_errors, 20, "%u");
 128 DEBUGFS_FWSTATS_FILE(dma, tx_requested, 20, "%u");
 129 DEBUGFS_FWSTATS_FILE(dma, tx_errors, 20, "%u");
 130
 131 DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, 20, "%u");
 132 DEBUGFS_FWSTATS_FILE(isr, fiqs, 20, "%u");
 133 DEBUGFS_FWSTATS_FILE(isr, rx_headers, 20, "%u");
 134 DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, 20, "%u");
 135 DEBUGFS_FWSTATS_FILE(isr, rx_rdys, 20, "%u");
 136 DEBUGFS_FWSTATS_FILE(isr, irqs, 20, "%u");
 137 DEBUGFS_FWSTATS_FILE(isr, tx_procs, 20, "%u");
 138 DEBUGFS_FWSTATS_FILE(isr, decrypt_done, 20, "%u");
 139 DEBUGFS_FWSTATS_FILE(isr, dma0_done, 20, "%u");
 140 DEBUGFS_FWSTATS_FILE(isr, dma1_done, 20, "%u");
 141 DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, 20, "%u");
 142 DEBUGFS_FWSTATS_FILE(isr, commands, 20, "%u");
 143 DEBUGFS_FWSTATS_FILE(isr, rx_procs, 20, "%u");
 144 DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, 20, "%u");
 145 DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, 20, "%u");
 146 DEBUGFS_FWSTATS_FILE(isr, pci_pm, 20, "%u");
 147 DEBUGFS_FWSTATS_FILE(isr, wakeups, 20, "%u");
 148 DEBUGFS_FWSTATS_FILE(isr, low_rssi, 20, "%u");
 149
 150 DEBUGFS_FWSTATS_FILE(wep, addr_key_count, 20, "%u");
 151 DEBUGFS_FWSTATS_FILE(wep, default_key_count, 20, "%u");
 152 /* skipping wep.reserved */
 153 DEBUGFS_FWSTATS_FILE(wep, key_not_found, 20, "%u");
 154 DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, 20, "%u");
 155 DEBUGFS_FWSTATS_FILE(wep, packets, 20, "%u");
 156 DEBUGFS_FWSTATS_FILE(wep, interrupt, 20, "%u");
 157
 158 DEBUGFS_FWSTATS_FILE(pwr, ps_enter, 20, "%u");
 159 DEBUGFS_FWSTATS_FILE(pwr, elp_enter, 20, "%u");
 160 DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, 20, "%u");
 161 DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, 20, "%u");
 162 DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, 20, "%u");
 163 DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, 20, "%u");
 164 DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, 20, "%u");
 165 DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, 20, "%u");
 166 DEBUGFS_FWSTATS_FILE(pwr, power_save_off, 20, "%u");
 167 DEBUGFS_FWSTATS_FILE(pwr, enable_ps, 20, "%u");
 168 DEBUGFS_FWSTATS_FILE(pwr, disable_ps, 20, "%u");
 169 DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, 20, "%u");
 170 /* skipping cont_miss_bcns_spread for now */
 171 DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, 20, "%u");
 172
 173 DEBUGFS_FWSTATS_FILE(mic, rx_pkts, 20, "%u");
 174 DEBUGFS_FWSTATS_FILE(mic, calc_failure, 20, "%u");
 175
 176 DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, 20, "%u");
 177 DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, 20, "%u");
 178 DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, 20, "%u");
 179 DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, 20, "%u");
 180 DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, 20, "%u");
 181 DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, 20, "%u");
 182
 183 DEBUGFS_FWSTATS_FILE(event, heart_beat, 20, "%u");
 184 DEBUGFS_FWSTATS_FILE(event, calibration, 20, "%u");
 185 DEBUGFS_FWSTATS_FILE(event, rx_mismatch, 20, "%u");
 186 DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, 20, "%u");
 187 DEBUGFS_FWSTATS_FILE(event, rx_pool, 20, "%u");
 188 DEBUGFS_FWSTATS_FILE(event, oom_late, 20, "%u");
 189 DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, 20, "%u");
 190 DEBUGFS_FWSTATS_FILE(event, tx_stuck, 20, "%u");
 191
 192 DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, 20, "%u");
 193 DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, 20, "%u");
 194 DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, 20, "%u");
 195 DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, 20, "%u");
 196 DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, 20, "%u");
 197 DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, 20, "%u");
 198 DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, 20, "%u");
 199
 200 DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, 20, "%u");
 201 DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, 20, "%u");
 202 DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data,
 203                      20, "%u");
 204 DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, 20, "%u");
 205 DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, 20, "%u");
 206
 207 DEBUGFS_READONLY_FILE(retry_count, 20, "%u", wl->stats.retry_count);
 208 DEBUGFS_READONLY_FILE(excessive_retries, 20, "%u",
 209                       wl->stats.excessive_retries);
 210
 211 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
 212                                  size_t count, loff_t *ppos)
 213 {
 214         struct wl1251 *wl = file->private_data;
 215         u32 queue_len;
 216         char buf[20];
 217         int res;
 218
 219         queue_len = skb_queue_len(&wl->tx_queue);
 220
 221         res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
 222         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
 223 }
 224
 225 static const struct file_operations tx_queue_len_ops = {
 226         .read = tx_queue_len_read,
 227         .open = simple_open,
 228         .llseek = generic_file_llseek,
 229 };
 230
 231 static ssize_t tx_queue_status_read(struct file *file, char __user *userbuf,
 232                                     size_t count, loff_t *ppos)
 233 {
 234         struct wl1251 *wl = file->private_data;
 235         char buf[3], status;
 236         int len;
 237
 238         if (wl->tx_queue_stopped)
 239                 status = 's';
 240         else
 241                 status = 'r';
 242
 243         len = scnprintf(buf, sizeof(buf), "%c\n", status);
 244         return simple_read_from_buffer(userbuf, count, ppos, buf, len);
 245 }
 246
 247 static const struct file_operations tx_queue_status_ops = {
 248         .read = tx_queue_status_read,
 249         .open = simple_open,
 250         .llseek = generic_file_llseek,
 251 };
 252
 253 static void wl1251_debugfs_delete_files(struct wl1251 *wl)
 254 {
 255         DEBUGFS_FWSTATS_DEL(tx, internal_desc_overflow);
 256
 257         DEBUGFS_FWSTATS_DEL(rx, out_of_mem);
 258         DEBUGFS_FWSTATS_DEL(rx, hdr_overflow);
 259         DEBUGFS_FWSTATS_DEL(rx, hw_stuck);
 260         DEBUGFS_FWSTATS_DEL(rx, dropped);
 261         DEBUGFS_FWSTATS_DEL(rx, fcs_err);
 262         DEBUGFS_FWSTATS_DEL(rx, xfr_hint_trig);
 263         DEBUGFS_FWSTATS_DEL(rx, path_reset);
 264         DEBUGFS_FWSTATS_DEL(rx, reset_counter);
 265
 266         DEBUGFS_FWSTATS_DEL(dma, rx_requested);
 267         DEBUGFS_FWSTATS_DEL(dma, rx_errors);
 268         DEBUGFS_FWSTATS_DEL(dma, tx_requested);
 269         DEBUGFS_FWSTATS_DEL(dma, tx_errors);
 270
 271         DEBUGFS_FWSTATS_DEL(isr, cmd_cmplt);
 272         DEBUGFS_FWSTATS_DEL(isr, fiqs);
 273         DEBUGFS_FWSTATS_DEL(isr, rx_headers);
 274         DEBUGFS_FWSTATS_DEL(isr, rx_mem_overflow);
 275         DEBUGFS_FWSTATS_DEL(isr, rx_rdys);
 276         DEBUGFS_FWSTATS_DEL(isr, irqs);
 277         DEBUGFS_FWSTATS_DEL(isr, tx_procs);
 278         DEBUGFS_FWSTATS_DEL(isr, decrypt_done);
 279         DEBUGFS_FWSTATS_DEL(isr, dma0_done);
 280         DEBUGFS_FWSTATS_DEL(isr, dma1_done);
 281         DEBUGFS_FWSTATS_DEL(isr, tx_exch_complete);
 282         DEBUGFS_FWSTATS_DEL(isr, commands);
 283         DEBUGFS_FWSTATS_DEL(isr, rx_procs);
 284         DEBUGFS_FWSTATS_DEL(isr, hw_pm_mode_changes);
 285         DEBUGFS_FWSTATS_DEL(isr, host_acknowledges);
 286         DEBUGFS_FWSTATS_DEL(isr, pci_pm);
 287         DEBUGFS_FWSTATS_DEL(isr, wakeups);
 288         DEBUGFS_FWSTATS_DEL(isr, low_rssi);
 289
 290         DEBUGFS_FWSTATS_DEL(wep, addr_key_count);
 291         DEBUGFS_FWSTATS_DEL(wep, default_key_count);
 292         /* skipping wep.reserved */
 293         DEBUGFS_FWSTATS_DEL(wep, key_not_found);
 294         DEBUGFS_FWSTATS_DEL(wep, decrypt_fail);
 295         DEBUGFS_FWSTATS_DEL(wep, packets);
 296         DEBUGFS_FWSTATS_DEL(wep, interrupt);
 297
 298         DEBUGFS_FWSTATS_DEL(pwr, ps_enter);
 299         DEBUGFS_FWSTATS_DEL(pwr, elp_enter);
 300         DEBUGFS_FWSTATS_DEL(pwr, missing_bcns);
 301         DEBUGFS_FWSTATS_DEL(pwr, wake_on_host);
 302         DEBUGFS_FWSTATS_DEL(pwr, wake_on_timer_exp);
 303         DEBUGFS_FWSTATS_DEL(pwr, tx_with_ps);
 304         DEBUGFS_FWSTATS_DEL(pwr, tx_without_ps);
 305         DEBUGFS_FWSTATS_DEL(pwr, rcvd_beacons);
 306         DEBUGFS_FWSTATS_DEL(pwr, power_save_off);
 307         DEBUGFS_FWSTATS_DEL(pwr, enable_ps);
 308         DEBUGFS_FWSTATS_DEL(pwr, disable_ps);
 309         DEBUGFS_FWSTATS_DEL(pwr, fix_tsf_ps);
 310         /* skipping cont_miss_bcns_spread for now */
 311         DEBUGFS_FWSTATS_DEL(pwr, rcvd_awake_beacons);
 312
 313         DEBUGFS_FWSTATS_DEL(mic, rx_pkts);
 314         DEBUGFS_FWSTATS_DEL(mic, calc_failure);
 315
 316         DEBUGFS_FWSTATS_DEL(aes, encrypt_fail);
 317         DEBUGFS_FWSTATS_DEL(aes, decrypt_fail);
 318         DEBUGFS_FWSTATS_DEL(aes, encrypt_packets);
 319         DEBUGFS_FWSTATS_DEL(aes, decrypt_packets);
 320         DEBUGFS_FWSTATS_DEL(aes, encrypt_interrupt);
 321         DEBUGFS_FWSTATS_DEL(aes, decrypt_interrupt);
 322
 323         DEBUGFS_FWSTATS_DEL(event, heart_beat);
 324         DEBUGFS_FWSTATS_DEL(event, calibration);
 325         DEBUGFS_FWSTATS_DEL(event, rx_mismatch);
 326         DEBUGFS_FWSTATS_DEL(event, rx_mem_empty);
 327         DEBUGFS_FWSTATS_DEL(event, rx_pool);
 328         DEBUGFS_FWSTATS_DEL(event, oom_late);
 329         DEBUGFS_FWSTATS_DEL(event, phy_transmit_error);
 330         DEBUGFS_FWSTATS_DEL(event, tx_stuck);
 331
 332         DEBUGFS_FWSTATS_DEL(ps, pspoll_timeouts);
 333         DEBUGFS_FWSTATS_DEL(ps, upsd_timeouts);
 334         DEBUGFS_FWSTATS_DEL(ps, upsd_max_sptime);
 335         DEBUGFS_FWSTATS_DEL(ps, upsd_max_apturn);
 336         DEBUGFS_FWSTATS_DEL(ps, pspoll_max_apturn);
 337         DEBUGFS_FWSTATS_DEL(ps, pspoll_utilization);
 338         DEBUGFS_FWSTATS_DEL(ps, upsd_utilization);
 339
 340         DEBUGFS_FWSTATS_DEL(rxpipe, rx_prep_beacon_drop);
 341         DEBUGFS_FWSTATS_DEL(rxpipe, descr_host_int_trig_rx_data);
 342         DEBUGFS_FWSTATS_DEL(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
 343         DEBUGFS_FWSTATS_DEL(rxpipe, missed_beacon_host_int_trig_rx_data);
 344         DEBUGFS_FWSTATS_DEL(rxpipe, tx_xfr_host_int_trig_rx_data);
 345
 346         DEBUGFS_DEL(tx_queue_len);
 347         DEBUGFS_DEL(tx_queue_status);
 348         DEBUGFS_DEL(retry_count);
 349         DEBUGFS_DEL(excessive_retries);
 350 }
 351
 352 static void wl1251_debugfs_add_files(struct wl1251 *wl)
 353 {
 354         DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
 355
 356         DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
 357         DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
 358         DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
 359         DEBUGFS_FWSTATS_ADD(rx, dropped);
 360         DEBUGFS_FWSTATS_ADD(rx, fcs_err);
 361         DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
 362         DEBUGFS_FWSTATS_ADD(rx, path_reset);
 363         DEBUGFS_FWSTATS_ADD(rx, reset_counter);
 364
 365         DEBUGFS_FWSTATS_ADD(dma, rx_requested);
 366         DEBUGFS_FWSTATS_ADD(dma, rx_errors);
 367         DEBUGFS_FWSTATS_ADD(dma, tx_requested);
 368         DEBUGFS_FWSTATS_ADD(dma, tx_errors);
 369
 370         DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
 371         DEBUGFS_FWSTATS_ADD(isr, fiqs);
 372         DEBUGFS_FWSTATS_ADD(isr, rx_headers);
 373         DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
 374         DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
 375         DEBUGFS_FWSTATS_ADD(isr, irqs);
 376         DEBUGFS_FWSTATS_ADD(isr, tx_procs);
 377         DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
 378         DEBUGFS_FWSTATS_ADD(isr, dma0_done);
 379         DEBUGFS_FWSTATS_ADD(isr, dma1_done);
 380         DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
 381         DEBUGFS_FWSTATS_ADD(isr, commands);
 382         DEBUGFS_FWSTATS_ADD(isr, rx_procs);
 383         DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
 384         DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
 385         DEBUGFS_FWSTATS_ADD(isr, pci_pm);
 386         DEBUGFS_FWSTATS_ADD(isr, wakeups);
 387         DEBUGFS_FWSTATS_ADD(isr, low_rssi);
 388
 389         DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
 390         DEBUGFS_FWSTATS_ADD(wep, default_key_count);
 391         /* skipping wep.reserved */
 392         DEBUGFS_FWSTATS_ADD(wep, key_not_found);
 393         DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
 394         DEBUGFS_FWSTATS_ADD(wep, packets);
 395         DEBUGFS_FWSTATS_ADD(wep, interrupt);
 396
 397         DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
 398         DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
 399         DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
 400         DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
 401         DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
 402         DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
 403         DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
 404         DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
 405         DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
 406         DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
 407         DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
 408         DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
 409         /* skipping cont_miss_bcns_spread for now */
 410         DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);
 411
 412         DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
 413         DEBUGFS_FWSTATS_ADD(mic, calc_failure);
 414
 415         DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
 416         DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
 417         DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
 418         DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
 419         DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
 420         DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);
 421
 422         DEBUGFS_FWSTATS_ADD(event, heart_beat);
 423         DEBUGFS_FWSTATS_ADD(event, calibration);
 424         DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
 425         DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
 426         DEBUGFS_FWSTATS_ADD(event, rx_pool);
 427         DEBUGFS_FWSTATS_ADD(event, oom_late);
 428         DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
 429         DEBUGFS_FWSTATS_ADD(event, tx_stuck);
 430
 431         DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
 432         DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
 433         DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
 434         DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
 435         DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
 436         DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
 437         DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);
 438
 439         DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
 440         DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
 441         DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
 442         DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
 443         DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
 444
 445         DEBUGFS_ADD(tx_queue_len, wl->debugfs.rootdir);
 446         DEBUGFS_ADD(tx_queue_status, wl->debugfs.rootdir);
 447         DEBUGFS_ADD(retry_count, wl->debugfs.rootdir);
 448         DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir);
 449 }
 450
 451 void wl1251_debugfs_reset(struct wl1251 *wl)
 452 {
 453         if (wl->stats.fw_stats != NULL)
 454                 memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
 455         wl->stats.retry_count = 0;
 456         wl->stats.excessive_retries = 0;
 457 }
 458
 459 int wl1251_debugfs_init(struct wl1251 *wl)
 460 {
 461         wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats), GFP_KERNEL);
 462         if (!wl->stats.fw_stats)
 463                 return -ENOMEM;
 464
 465         wl->debugfs.rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);
 466
 467         wl->debugfs.fw_statistics = debugfs_create_dir("fw-statistics",
 468                                                        wl->debugfs.rootdir);
 469
 470         wl->stats.fw_stats_update = jiffies;
 471
 472         wl1251_debugfs_add_files(wl);
 473
 474         return 0;
 475 }
 476
 477 void wl1251_debugfs_exit(struct wl1251 *wl)
 478 {
 479         wl1251_debugfs_delete_files(wl);
 480
 481         kfree(wl->stats.fw_stats);
 482         wl->stats.fw_stats = NULL;
 483
 484         debugfs_remove(wl->debugfs.fw_statistics);
 485         wl->debugfs.fw_statistics = NULL;
 486
 487         debugfs_remove(wl->debugfs.rootdir);
 488         wl->debugfs.rootdir = NULL;
 489
 490 }