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