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 #include <linux/slab.h>
  28
  29 #include "wl1251.h"
  30 #include "wl1251_acx.h"
  31 #include "wl1251_ps.h"
  32
  33 /* ms */
  34 #define WL1251_DEBUGFS_STATS_LIFETIME 1000
  35
  36 /* debugfs macros idea from mac80211 */
  37
  38 #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...)              \
  39 static ssize_t name## _read(struct file *file, char __user *userbuf,    \
  40                             size_t count, loff_t *ppos)                 \
  41 {                                                                       \
  42         struct wl1251 *wl = file->private_data;                         \
  43         char buf[buflen];                                               \
  44         int res;                                                        \
  45                                                                         \
  46         res = scnprintf(buf, buflen, fmt "\n", ##value);                \
  47         return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
  48 }                                                                       \
  49                                                                         \
  50 static const struct file_operations name## _ops = {                     \
  51         .read = name## _read,                                           \
  52         .open = wl1251_open_file_generic,                               \
  53         .llseek = generic_file_llseek,                                  \
  54 };
  55
  56 #define DEBUGFS_ADD(name, parent)                                       \
  57         wl->debugfs.name = debugfs_create_file(#name, 0400, parent,     \
  58                                                wl, &name## _ops);       \
  59         if (IS_ERR(wl->debugfs.name)) {                                 \
  60                 ret = PTR_ERR(wl->debugfs.name);                        \
  61                 wl->debugfs.name = NULL;                                \
  62                 goto out;                                               \
  63         }
  64
  65 #define DEBUGFS_DEL(name)                                               \
  66         do {                                                            \
  67                 debugfs_remove(wl->debugfs.name);                       \
  68                 wl->debugfs.name = NULL;                                \
  69         } while (0)
  70
  71 #define DEBUGFS_FWSTATS_FILE(sub, name, buflen, fmt)                    \
  72 static ssize_t sub## _ ##name## _read(struct file *file,                \
  73                                       char __user *userbuf,             \
  74                                       size_t count, loff_t *ppos)       \
  75 {                                                                       \
  76         struct wl1251 *wl = file->private_data;                         \
  77         char buf[buflen];                                               \
  78         int res;                                                        \
  79                                                                         \
  80         wl1251_debugfs_update_stats(wl);                                \
  81                                                                         \
  82         res = scnprintf(buf, buflen, fmt "\n",                          \
  83                         wl->stats.fw_stats->sub.name);                  \
  84         return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
  85 }                                                                       \
  86                                                                         \
  87 static const struct file_operations sub## _ ##name## _ops = {           \
  88         .read = sub## _ ##name## _read,                                 \
  89         .open = wl1251_open_file_generic,                               \
  90         .llseek = generic_file_llseek,                                  \
  91 };
  92
  93 #define DEBUGFS_FWSTATS_ADD(sub, name)                          \
  94         DEBUGFS_ADD(sub## _ ##name, wl->debugfs.fw_statistics)
  95
  96 #define DEBUGFS_FWSTATS_DEL(sub, name)                          \
  97         DEBUGFS_DEL(sub## _ ##name)
  98
  99 static void wl1251_debugfs_update_stats(struct wl1251 *wl)
 100 {
 101         int ret;
 102
 103         mutex_lock(&wl->mutex);
 104
 105         ret = wl1251_ps_elp_wakeup(wl);
 106         if (ret < 0)
 107                 goto out;
 108
 109         if (wl->state == WL1251_STATE_ON &&
 110             time_after(jiffies, wl->stats.fw_stats_update +
 111                        msecs_to_jiffies(WL1251_DEBUGFS_STATS_LIFETIME))) {
 112                 wl1251_acx_statistics(wl, wl->stats.fw_stats);
 113                 wl->stats.fw_stats_update = jiffies;
 114         }
 115
 116         wl1251_ps_elp_sleep(wl);
 117
 118 out:
 119         mutex_unlock(&wl->mutex);
 120 }
 121
 122 static int wl1251_open_file_generic(struct inode *inode, struct file *file)
 123 {
 124         file->private_data = inode->i_private;
 125         return 0;
 126 }
 127
 128 DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, 20, "%u");
 129
 130 DEBUGFS_FWSTATS_FILE(rx, out_of_mem, 20, "%u");
 131 DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, 20, "%u");
 132 DEBUGFS_FWSTATS_FILE(rx, hw_stuck, 20, "%u");
 133 DEBUGFS_FWSTATS_FILE(rx, dropped, 20, "%u");
 134 DEBUGFS_FWSTATS_FILE(rx, fcs_err, 20, "%u");
 135 DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, 20, "%u");
 136 DEBUGFS_FWSTATS_FILE(rx, path_reset, 20, "%u");
 137 DEBUGFS_FWSTATS_FILE(rx, reset_counter, 20, "%u");
 138
 139 DEBUGFS_FWSTATS_FILE(dma, rx_requested, 20, "%u");
 140 DEBUGFS_FWSTATS_FILE(dma, rx_errors, 20, "%u");
 141 DEBUGFS_FWSTATS_FILE(dma, tx_requested, 20, "%u");
 142 DEBUGFS_FWSTATS_FILE(dma, tx_errors, 20, "%u");
 143
 144 DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, 20, "%u");
 145 DEBUGFS_FWSTATS_FILE(isr, fiqs, 20, "%u");
 146 DEBUGFS_FWSTATS_FILE(isr, rx_headers, 20, "%u");
 147 DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, 20, "%u");
 148 DEBUGFS_FWSTATS_FILE(isr, rx_rdys, 20, "%u");
 149 DEBUGFS_FWSTATS_FILE(isr, irqs, 20, "%u");
 150 DEBUGFS_FWSTATS_FILE(isr, tx_procs, 20, "%u");
 151 DEBUGFS_FWSTATS_FILE(isr, decrypt_done, 20, "%u");
 152 DEBUGFS_FWSTATS_FILE(isr, dma0_done, 20, "%u");
 153 DEBUGFS_FWSTATS_FILE(isr, dma1_done, 20, "%u");
 154 DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, 20, "%u");
 155 DEBUGFS_FWSTATS_FILE(isr, commands, 20, "%u");
 156 DEBUGFS_FWSTATS_FILE(isr, rx_procs, 20, "%u");
 157 DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, 20, "%u");
 158 DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, 20, "%u");
 159 DEBUGFS_FWSTATS_FILE(isr, pci_pm, 20, "%u");
 160 DEBUGFS_FWSTATS_FILE(isr, wakeups, 20, "%u");
 161 DEBUGFS_FWSTATS_FILE(isr, low_rssi, 20, "%u");
 162
 163 DEBUGFS_FWSTATS_FILE(wep, addr_key_count, 20, "%u");
 164 DEBUGFS_FWSTATS_FILE(wep, default_key_count, 20, "%u");
 165 /* skipping wep.reserved */
 166 DEBUGFS_FWSTATS_FILE(wep, key_not_found, 20, "%u");
 167 DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, 20, "%u");
 168 DEBUGFS_FWSTATS_FILE(wep, packets, 20, "%u");
 169 DEBUGFS_FWSTATS_FILE(wep, interrupt, 20, "%u");
 170
 171 DEBUGFS_FWSTATS_FILE(pwr, ps_enter, 20, "%u");
 172 DEBUGFS_FWSTATS_FILE(pwr, elp_enter, 20, "%u");
 173 DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, 20, "%u");
 174 DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, 20, "%u");
 175 DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, 20, "%u");
 176 DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, 20, "%u");
 177 DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, 20, "%u");
 178 DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, 20, "%u");
 179 DEBUGFS_FWSTATS_FILE(pwr, power_save_off, 20, "%u");
 180 DEBUGFS_FWSTATS_FILE(pwr, enable_ps, 20, "%u");
 181 DEBUGFS_FWSTATS_FILE(pwr, disable_ps, 20, "%u");
 182 DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, 20, "%u");
 183 /* skipping cont_miss_bcns_spread for now */
 184 DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, 20, "%u");
 185
 186 DEBUGFS_FWSTATS_FILE(mic, rx_pkts, 20, "%u");
 187 DEBUGFS_FWSTATS_FILE(mic, calc_failure, 20, "%u");
 188
 189 DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, 20, "%u");
 190 DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, 20, "%u");
 191 DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, 20, "%u");
 192 DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, 20, "%u");
 193 DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, 20, "%u");
 194 DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, 20, "%u");
 195
 196 DEBUGFS_FWSTATS_FILE(event, heart_beat, 20, "%u");
 197 DEBUGFS_FWSTATS_FILE(event, calibration, 20, "%u");
 198 DEBUGFS_FWSTATS_FILE(event, rx_mismatch, 20, "%u");
 199 DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, 20, "%u");
 200 DEBUGFS_FWSTATS_FILE(event, rx_pool, 20, "%u");
 201 DEBUGFS_FWSTATS_FILE(event, oom_late, 20, "%u");
 202 DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, 20, "%u");
 203 DEBUGFS_FWSTATS_FILE(event, tx_stuck, 20, "%u");
 204
 205 DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, 20, "%u");
 206 DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, 20, "%u");
 207 DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, 20, "%u");
 208 DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, 20, "%u");
 209 DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, 20, "%u");
 210 DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, 20, "%u");
 211 DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, 20, "%u");
 212
 213 DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, 20, "%u");
 214 DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, 20, "%u");
 215 DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data,
 216                      20, "%u");
 217 DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, 20, "%u");
 218 DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, 20, "%u");
 219
 220 DEBUGFS_READONLY_FILE(retry_count, 20, "%u", wl->stats.retry_count);
 221 DEBUGFS_READONLY_FILE(excessive_retries, 20, "%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 wl1251 *wl = file->private_data;
 228         u32 queue_len;
 229         char buf[20];
 230         int res;
 231
 232         queue_len = skb_queue_len(&wl->tx_queue);
 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 = wl1251_open_file_generic,
 241         .llseek = generic_file_llseek,
 242 };
 243
 244 static ssize_t tx_queue_status_read(struct file *file, char __user *userbuf,
 245                                     size_t count, loff_t *ppos)
 246 {
 247         struct wl1251 *wl = file->private_data;
 248         char buf[3], status;
 249         int len;
 250
 251         if (wl->tx_queue_stopped)
 252                 status = 's';
 253         else
 254                 status = 'r';
 255
 256         len = scnprintf(buf, sizeof(buf), "%c\n", status);
 257         return simple_read_from_buffer(userbuf, count, ppos, buf, len);
 258 }
 259
 260 static const struct file_operations tx_queue_status_ops = {
 261         .read = tx_queue_status_read,
 262         .open = wl1251_open_file_generic,
 263         .llseek = generic_file_llseek,
 264 };
 265
 266 static void wl1251_debugfs_delete_files(struct wl1251 *wl)
 267 {
 268         DEBUGFS_FWSTATS_DEL(tx, internal_desc_overflow);
 269
 270         DEBUGFS_FWSTATS_DEL(rx, out_of_mem);
 271         DEBUGFS_FWSTATS_DEL(rx, hdr_overflow);
 272         DEBUGFS_FWSTATS_DEL(rx, hw_stuck);
 273         DEBUGFS_FWSTATS_DEL(rx, dropped);
 274         DEBUGFS_FWSTATS_DEL(rx, fcs_err);
 275         DEBUGFS_FWSTATS_DEL(rx, xfr_hint_trig);
 276         DEBUGFS_FWSTATS_DEL(rx, path_reset);
 277         DEBUGFS_FWSTATS_DEL(rx, reset_counter);
 278
 279         DEBUGFS_FWSTATS_DEL(dma, rx_requested);
 280         DEBUGFS_FWSTATS_DEL(dma, rx_errors);
 281         DEBUGFS_FWSTATS_DEL(dma, tx_requested);
 282         DEBUGFS_FWSTATS_DEL(dma, tx_errors);
 283
 284         DEBUGFS_FWSTATS_DEL(isr, cmd_cmplt);
 285         DEBUGFS_FWSTATS_DEL(isr, fiqs);
 286         DEBUGFS_FWSTATS_DEL(isr, rx_headers);
 287         DEBUGFS_FWSTATS_DEL(isr, rx_mem_overflow);
 288         DEBUGFS_FWSTATS_DEL(isr, rx_rdys);
 289         DEBUGFS_FWSTATS_DEL(isr, irqs);
 290         DEBUGFS_FWSTATS_DEL(isr, tx_procs);
 291         DEBUGFS_FWSTATS_DEL(isr, decrypt_done);
 292         DEBUGFS_FWSTATS_DEL(isr, dma0_done);
 293         DEBUGFS_FWSTATS_DEL(isr, dma1_done);
 294         DEBUGFS_FWSTATS_DEL(isr, tx_exch_complete);
 295         DEBUGFS_FWSTATS_DEL(isr, commands);
 296         DEBUGFS_FWSTATS_DEL(isr, rx_procs);
 297         DEBUGFS_FWSTATS_DEL(isr, hw_pm_mode_changes);
 298         DEBUGFS_FWSTATS_DEL(isr, host_acknowledges);
 299         DEBUGFS_FWSTATS_DEL(isr, pci_pm);
 300         DEBUGFS_FWSTATS_DEL(isr, wakeups);
 301         DEBUGFS_FWSTATS_DEL(isr, low_rssi);
 302
 303         DEBUGFS_FWSTATS_DEL(wep, addr_key_count);
 304         DEBUGFS_FWSTATS_DEL(wep, default_key_count);
 305         /* skipping wep.reserved */
 306         DEBUGFS_FWSTATS_DEL(wep, key_not_found);
 307         DEBUGFS_FWSTATS_DEL(wep, decrypt_fail);
 308         DEBUGFS_FWSTATS_DEL(wep, packets);
 309         DEBUGFS_FWSTATS_DEL(wep, interrupt);
 310
 311         DEBUGFS_FWSTATS_DEL(pwr, ps_enter);
 312         DEBUGFS_FWSTATS_DEL(pwr, elp_enter);
 313         DEBUGFS_FWSTATS_DEL(pwr, missing_bcns);
 314         DEBUGFS_FWSTATS_DEL(pwr, wake_on_host);
 315         DEBUGFS_FWSTATS_DEL(pwr, wake_on_timer_exp);
 316         DEBUGFS_FWSTATS_DEL(pwr, tx_with_ps);
 317         DEBUGFS_FWSTATS_DEL(pwr, tx_without_ps);
 318         DEBUGFS_FWSTATS_DEL(pwr, rcvd_beacons);
 319         DEBUGFS_FWSTATS_DEL(pwr, power_save_off);
 320         DEBUGFS_FWSTATS_DEL(pwr, enable_ps);
 321         DEBUGFS_FWSTATS_DEL(pwr, disable_ps);
 322         DEBUGFS_FWSTATS_DEL(pwr, fix_tsf_ps);
 323         /* skipping cont_miss_bcns_spread for now */
 324         DEBUGFS_FWSTATS_DEL(pwr, rcvd_awake_beacons);
 325
 326         DEBUGFS_FWSTATS_DEL(mic, rx_pkts);
 327         DEBUGFS_FWSTATS_DEL(mic, calc_failure);
 328
 329         DEBUGFS_FWSTATS_DEL(aes, encrypt_fail);
 330         DEBUGFS_FWSTATS_DEL(aes, decrypt_fail);
 331         DEBUGFS_FWSTATS_DEL(aes, encrypt_packets);
 332         DEBUGFS_FWSTATS_DEL(aes, decrypt_packets);
 333         DEBUGFS_FWSTATS_DEL(aes, encrypt_interrupt);
 334         DEBUGFS_FWSTATS_DEL(aes, decrypt_interrupt);
 335
 336         DEBUGFS_FWSTATS_DEL(event, heart_beat);
 337         DEBUGFS_FWSTATS_DEL(event, calibration);
 338         DEBUGFS_FWSTATS_DEL(event, rx_mismatch);
 339         DEBUGFS_FWSTATS_DEL(event, rx_mem_empty);
 340         DEBUGFS_FWSTATS_DEL(event, rx_pool);
 341         DEBUGFS_FWSTATS_DEL(event, oom_late);
 342         DEBUGFS_FWSTATS_DEL(event, phy_transmit_error);
 343         DEBUGFS_FWSTATS_DEL(event, tx_stuck);
 344
 345         DEBUGFS_FWSTATS_DEL(ps, pspoll_timeouts);
 346         DEBUGFS_FWSTATS_DEL(ps, upsd_timeouts);
 347         DEBUGFS_FWSTATS_DEL(ps, upsd_max_sptime);
 348         DEBUGFS_FWSTATS_DEL(ps, upsd_max_apturn);
 349         DEBUGFS_FWSTATS_DEL(ps, pspoll_max_apturn);
 350         DEBUGFS_FWSTATS_DEL(ps, pspoll_utilization);
 351         DEBUGFS_FWSTATS_DEL(ps, upsd_utilization);
 352
 353         DEBUGFS_FWSTATS_DEL(rxpipe, rx_prep_beacon_drop);
 354         DEBUGFS_FWSTATS_DEL(rxpipe, descr_host_int_trig_rx_data);
 355         DEBUGFS_FWSTATS_DEL(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
 356         DEBUGFS_FWSTATS_DEL(rxpipe, missed_beacon_host_int_trig_rx_data);
 357         DEBUGFS_FWSTATS_DEL(rxpipe, tx_xfr_host_int_trig_rx_data);
 358
 359         DEBUGFS_DEL(tx_queue_len);
 360         DEBUGFS_DEL(tx_queue_status);
 361         DEBUGFS_DEL(retry_count);
 362         DEBUGFS_DEL(excessive_retries);
 363 }
 364
 365 static int wl1251_debugfs_add_files(struct wl1251 *wl)
 366 {
 367         int ret = 0;
 368
 369         DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
 370
 371         DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
 372         DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
 373         DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
 374         DEBUGFS_FWSTATS_ADD(rx, dropped);
 375         DEBUGFS_FWSTATS_ADD(rx, fcs_err);
 376         DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
 377         DEBUGFS_FWSTATS_ADD(rx, path_reset);
 378         DEBUGFS_FWSTATS_ADD(rx, reset_counter);
 379
 380         DEBUGFS_FWSTATS_ADD(dma, rx_requested);
 381         DEBUGFS_FWSTATS_ADD(dma, rx_errors);
 382         DEBUGFS_FWSTATS_ADD(dma, tx_requested);
 383         DEBUGFS_FWSTATS_ADD(dma, tx_errors);
 384
 385         DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
 386         DEBUGFS_FWSTATS_ADD(isr, fiqs);
 387         DEBUGFS_FWSTATS_ADD(isr, rx_headers);
 388         DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
 389         DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
 390         DEBUGFS_FWSTATS_ADD(isr, irqs);
 391         DEBUGFS_FWSTATS_ADD(isr, tx_procs);
 392         DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
 393         DEBUGFS_FWSTATS_ADD(isr, dma0_done);
 394         DEBUGFS_FWSTATS_ADD(isr, dma1_done);
 395         DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
 396         DEBUGFS_FWSTATS_ADD(isr, commands);
 397         DEBUGFS_FWSTATS_ADD(isr, rx_procs);
 398         DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
 399         DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
 400         DEBUGFS_FWSTATS_ADD(isr, pci_pm);
 401         DEBUGFS_FWSTATS_ADD(isr, wakeups);
 402         DEBUGFS_FWSTATS_ADD(isr, low_rssi);
 403
 404         DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
 405         DEBUGFS_FWSTATS_ADD(wep, default_key_count);
 406         /* skipping wep.reserved */
 407         DEBUGFS_FWSTATS_ADD(wep, key_not_found);
 408         DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
 409         DEBUGFS_FWSTATS_ADD(wep, packets);
 410         DEBUGFS_FWSTATS_ADD(wep, interrupt);
 411
 412         DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
 413         DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
 414         DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
 415         DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
 416         DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
 417         DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
 418         DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
 419         DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
 420         DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
 421         DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
 422         DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
 423         DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
 424         /* skipping cont_miss_bcns_spread for now */
 425         DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);
 426
 427         DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
 428         DEBUGFS_FWSTATS_ADD(mic, calc_failure);
 429
 430         DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
 431         DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
 432         DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
 433         DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
 434         DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
 435         DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);
 436
 437         DEBUGFS_FWSTATS_ADD(event, heart_beat);
 438         DEBUGFS_FWSTATS_ADD(event, calibration);
 439         DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
 440         DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
 441         DEBUGFS_FWSTATS_ADD(event, rx_pool);
 442         DEBUGFS_FWSTATS_ADD(event, oom_late);
 443         DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
 444         DEBUGFS_FWSTATS_ADD(event, tx_stuck);
 445
 446         DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
 447         DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
 448         DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
 449         DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
 450         DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
 451         DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
 452         DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);
 453
 454         DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
 455         DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
 456         DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
 457         DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
 458         DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
 459
 460         DEBUGFS_ADD(tx_queue_len, wl->debugfs.rootdir);
 461         DEBUGFS_ADD(tx_queue_status, wl->debugfs.rootdir);
 462         DEBUGFS_ADD(retry_count, wl->debugfs.rootdir);
 463         DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir);
 464
 465 out:
 466         if (ret < 0)
 467                 wl1251_debugfs_delete_files(wl);
 468
 469         return ret;
 470 }
 471
 472 void wl1251_debugfs_reset(struct wl1251 *wl)
 473 {
 474         if (wl->stats.fw_stats != NULL)
 475                 memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
 476         wl->stats.retry_count = 0;
 477         wl->stats.excessive_retries = 0;
 478 }
 479
 480 int wl1251_debugfs_init(struct wl1251 *wl)
 481 {
 482         int ret;
 483
 484         wl->debugfs.rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);
 485
 486         if (IS_ERR(wl->debugfs.rootdir)) {
 487                 ret = PTR_ERR(wl->debugfs.rootdir);
 488                 wl->debugfs.rootdir = NULL;
 489                 goto err;
 490         }
 491
 492         wl->debugfs.fw_statistics = debugfs_create_dir("fw-statistics",
 493                                                        wl->debugfs.rootdir);
 494
 495         if (IS_ERR(wl->debugfs.fw_statistics)) {
 496                 ret = PTR_ERR(wl->debugfs.fw_statistics);
 497                 wl->debugfs.fw_statistics = NULL;
 498                 goto err_root;
 499         }
 500
 501         wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats),
 502                                       GFP_KERNEL);
 503
 504         if (!wl->stats.fw_stats) {
 505                 ret = -ENOMEM;
 506                 goto err_fw;
 507         }
 508
 509         wl->stats.fw_stats_update = jiffies;
 510
 511         ret = wl1251_debugfs_add_files(wl);
 512
 513         if (ret < 0)
 514                 goto err_file;
 515
 516         return 0;
 517
 518 err_file:
 519         kfree(wl->stats.fw_stats);
 520         wl->stats.fw_stats = NULL;
 521
 522 err_fw:
 523         debugfs_remove(wl->debugfs.fw_statistics);
 524         wl->debugfs.fw_statistics = NULL;
 525
 526 err_root:
 527         debugfs_remove(wl->debugfs.rootdir);
 528         wl->debugfs.rootdir = NULL;
 529
 530 err:
 531         return ret;
 532 }
 533
 534 void wl1251_debugfs_exit(struct wl1251 *wl)
 535 {
 536         wl1251_debugfs_delete_files(wl);
 537
 538         kfree(wl->stats.fw_stats);
 539         wl->stats.fw_stats = NULL;
 540
 541         debugfs_remove(wl->debugfs.fw_statistics);
 542         wl->debugfs.fw_statistics = NULL;
 543
 544         debugfs_remove(wl->debugfs.rootdir);
 545         wl->debugfs.rootdir = NULL;
 546
 547 }