drivers/net/wireless/wl12xx/debugfs.c

   1 /*
   2  * This file is part of wl1271
   3  *
   4  * Copyright (C) 2009 Nokia Corporation
   5  *
   6  * Contact: Luciano Coelho <luciano.coelho@nokia.com>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * version 2 as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  20  * 02110-1301 USA
  21  *
  22  */
  23
  24 #include "debugfs.h"
  25
  26 #include <linux/skbuff.h>
  27 #include <linux/slab.h>
  28
  29 #include "wl12xx.h"
  30 #include "acx.h"
  31 #include "ps.h"
  32 #include "io.h"
  33 #include "tx.h"
  34
  35 /* ms */
  36 #define WL1271_DEBUGFS_STATS_LIFETIME 1000
  37
  38 /* debugfs macros idea from mac80211 */
  39 #define DEBUGFS_FORMAT_BUFFER_SIZE 100
  40 static int wl1271_format_buffer(char __user *userbuf, size_t count,
  41                                     loff_t *ppos, char *fmt, ...)
  42 {
  43         va_list args;
  44         char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
  45         int res;
  46
  47         va_start(args, fmt);
  48         res = vscnprintf(buf, sizeof(buf), fmt, args);
  49         va_end(args);
  50
  51         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
  52 }
  53
  54 #define DEBUGFS_READONLY_FILE(name, fmt, value...)                      \
  55 static ssize_t name## _read(struct file *file, char __user *userbuf,    \
  56                             size_t count, loff_t *ppos)                 \
  57 {                                                                       \
  58         struct wl1271 *wl = file->private_data;                         \
  59         return wl1271_format_buffer(userbuf, count, ppos,               \
  60                                     fmt "\n", ##value);                 \
  61 }                                                                       \
  62                                                                         \
  63 static const struct file_operations name## _ops = {                     \
  64         .read = name## _read,                                           \
  65         .open = wl1271_open_file_generic,                               \
  66         .llseek = generic_file_llseek,                                  \
  67 };
  68
  69 #define DEBUGFS_ADD(name, parent)                                       \
  70         entry = debugfs_create_file(#name, 0400, parent,                \
  71                                     wl, &name## _ops);                  \
  72         if (!entry || IS_ERR(entry))                                    \
  73                 goto err;                                               \
  74
  75 #define DEBUGFS_ADD_PREFIX(prefix, name, parent)                        \
  76         do {                                                            \
  77                 entry = debugfs_create_file(#name, 0400, parent,        \
  78                                     wl, &prefix## _## name## _ops);     \
  79                 if (!entry || IS_ERR(entry))                            \
  80                         goto err;                                       \
  81         } while (0);
  82
  83 #define DEBUGFS_FWSTATS_FILE(sub, name, fmt)                            \
  84 static ssize_t sub## _ ##name## _read(struct file *file,                \
  85                                       char __user *userbuf,             \
  86                                       size_t count, loff_t *ppos)       \
  87 {                                                                       \
  88         struct wl1271 *wl = file->private_data;                         \
  89                                                                         \
  90         wl1271_debugfs_update_stats(wl);                                \
  91                                                                         \
  92         return wl1271_format_buffer(userbuf, count, ppos, fmt "\n",     \
  93                                     wl->stats.fw_stats->sub.name);      \
  94 }                                                                       \
  95                                                                         \
  96 static const struct file_operations sub## _ ##name## _ops = {           \
  97         .read = sub## _ ##name## _read,                                 \
  98         .open = wl1271_open_file_generic,                               \
  99         .llseek = generic_file_llseek,                                  \
 100 };
 101
 102 #define DEBUGFS_FWSTATS_ADD(sub, name)                          \
 103         DEBUGFS_ADD(sub## _ ##name, stats)
 104
 105 static void wl1271_debugfs_update_stats(struct wl1271 *wl)
 106 {
 107         int ret;
 108
 109         mutex_lock(&wl->mutex);
 110
 111         ret = wl1271_ps_elp_wakeup(wl);
 112         if (ret < 0)
 113                 goto out;
 114
 115         if (wl->state == WL1271_STATE_ON &&
 116             time_after(jiffies, wl->stats.fw_stats_update +
 117                        msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) {
 118                 wl1271_acx_statistics(wl, wl->stats.fw_stats);
 119                 wl->stats.fw_stats_update = jiffies;
 120         }
 121
 122         wl1271_ps_elp_sleep(wl);
 123
 124 out:
 125         mutex_unlock(&wl->mutex);
 126 }
 127
 128 static int wl1271_open_file_generic(struct inode *inode, struct file *file)
 129 {
 130         file->private_data = inode->i_private;
 131         return 0;
 132 }
 133
 134 DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, "%u");
 135
 136 DEBUGFS_FWSTATS_FILE(rx, out_of_mem, "%u");
 137 DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, "%u");
 138 DEBUGFS_FWSTATS_FILE(rx, hw_stuck, "%u");
 139 DEBUGFS_FWSTATS_FILE(rx, dropped, "%u");
 140 DEBUGFS_FWSTATS_FILE(rx, fcs_err, "%u");
 141 DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, "%u");
 142 DEBUGFS_FWSTATS_FILE(rx, path_reset, "%u");
 143 DEBUGFS_FWSTATS_FILE(rx, reset_counter, "%u");
 144
 145 DEBUGFS_FWSTATS_FILE(dma, rx_requested, "%u");
 146 DEBUGFS_FWSTATS_FILE(dma, rx_errors, "%u");
 147 DEBUGFS_FWSTATS_FILE(dma, tx_requested, "%u");
 148 DEBUGFS_FWSTATS_FILE(dma, tx_errors, "%u");
 149
 150 DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, "%u");
 151 DEBUGFS_FWSTATS_FILE(isr, fiqs, "%u");
 152 DEBUGFS_FWSTATS_FILE(isr, rx_headers, "%u");
 153 DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, "%u");
 154 DEBUGFS_FWSTATS_FILE(isr, rx_rdys, "%u");
 155 DEBUGFS_FWSTATS_FILE(isr, irqs, "%u");
 156 DEBUGFS_FWSTATS_FILE(isr, tx_procs, "%u");
 157 DEBUGFS_FWSTATS_FILE(isr, decrypt_done, "%u");
 158 DEBUGFS_FWSTATS_FILE(isr, dma0_done, "%u");
 159 DEBUGFS_FWSTATS_FILE(isr, dma1_done, "%u");
 160 DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, "%u");
 161 DEBUGFS_FWSTATS_FILE(isr, commands, "%u");
 162 DEBUGFS_FWSTATS_FILE(isr, rx_procs, "%u");
 163 DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, "%u");
 164 DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, "%u");
 165 DEBUGFS_FWSTATS_FILE(isr, pci_pm, "%u");
 166 DEBUGFS_FWSTATS_FILE(isr, wakeups, "%u");
 167 DEBUGFS_FWSTATS_FILE(isr, low_rssi, "%u");
 168
 169 DEBUGFS_FWSTATS_FILE(wep, addr_key_count, "%u");
 170 DEBUGFS_FWSTATS_FILE(wep, default_key_count, "%u");
 171 /* skipping wep.reserved */
 172 DEBUGFS_FWSTATS_FILE(wep, key_not_found, "%u");
 173 DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, "%u");
 174 DEBUGFS_FWSTATS_FILE(wep, packets, "%u");
 175 DEBUGFS_FWSTATS_FILE(wep, interrupt, "%u");
 176
 177 DEBUGFS_FWSTATS_FILE(pwr, ps_enter, "%u");
 178 DEBUGFS_FWSTATS_FILE(pwr, elp_enter, "%u");
 179 DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, "%u");
 180 DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, "%u");
 181 DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, "%u");
 182 DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, "%u");
 183 DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, "%u");
 184 DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, "%u");
 185 DEBUGFS_FWSTATS_FILE(pwr, power_save_off, "%u");
 186 DEBUGFS_FWSTATS_FILE(pwr, enable_ps, "%u");
 187 DEBUGFS_FWSTATS_FILE(pwr, disable_ps, "%u");
 188 DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, "%u");
 189 /* skipping cont_miss_bcns_spread for now */
 190 DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, "%u");
 191
 192 DEBUGFS_FWSTATS_FILE(mic, rx_pkts, "%u");
 193 DEBUGFS_FWSTATS_FILE(mic, calc_failure, "%u");
 194
 195 DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, "%u");
 196 DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, "%u");
 197 DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, "%u");
 198 DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, "%u");
 199 DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, "%u");
 200 DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, "%u");
 201
 202 DEBUGFS_FWSTATS_FILE(event, heart_beat, "%u");
 203 DEBUGFS_FWSTATS_FILE(event, calibration, "%u");
 204 DEBUGFS_FWSTATS_FILE(event, rx_mismatch, "%u");
 205 DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, "%u");
 206 DEBUGFS_FWSTATS_FILE(event, rx_pool, "%u");
 207 DEBUGFS_FWSTATS_FILE(event, oom_late, "%u");
 208 DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, "%u");
 209 DEBUGFS_FWSTATS_FILE(event, tx_stuck, "%u");
 210
 211 DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, "%u");
 212 DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, "%u");
 213 DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, "%u");
 214 DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, "%u");
 215 DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, "%u");
 216 DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, "%u");
 217 DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, "%u");
 218
 219 DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, "%u");
 220 DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, "%u");
 221 DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data, "%u");
 222 DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, "%u");
 223 DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, "%u");
 224
 225 DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
 226 DEBUGFS_READONLY_FILE(excessive_retries, "%u",
 227                       wl->stats.excessive_retries);
 228
 229 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
 230                                  size_t count, loff_t *ppos)
 231 {
 232         struct wl1271 *wl = file->private_data;
 233         u32 queue_len;
 234         char buf[20];
 235         int res;
 236
 237         queue_len = wl1271_tx_total_queue_count(wl);
 238
 239         res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
 240         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
 241 }
 242
 243 static const struct file_operations tx_queue_len_ops = {
 244         .read = tx_queue_len_read,
 245         .open = wl1271_open_file_generic,
 246         .llseek = default_llseek,
 247 };
 248
 249 static ssize_t gpio_power_read(struct file *file, char __user *user_buf,
 250                           size_t count, loff_t *ppos)
 251 {
 252         struct wl1271 *wl = file->private_data;
 253         bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 254
 255         int res;
 256         char buf[10];
 257
 258         res = scnprintf(buf, sizeof(buf), "%d\n", state);
 259
 260         return simple_read_from_buffer(user_buf, count, ppos, buf, res);
 261 }
 262
 263 static ssize_t gpio_power_write(struct file *file,
 264                            const char __user *user_buf,
 265                            size_t count, loff_t *ppos)
 266 {
 267         struct wl1271 *wl = file->private_data;
 268         unsigned long value;
 269         int ret;
 270
 271         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 272         if (ret < 0) {
 273                 wl1271_warning("illegal value in gpio_power");
 274                 return -EINVAL;
 275         }
 276
 277         mutex_lock(&wl->mutex);
 278
 279         if (value)
 280                 wl1271_power_on(wl);
 281         else
 282                 wl1271_power_off(wl);
 283
 284         mutex_unlock(&wl->mutex);
 285         return count;
 286 }
 287
 288 static const struct file_operations gpio_power_ops = {
 289         .read = gpio_power_read,
 290         .write = gpio_power_write,
 291         .open = wl1271_open_file_generic,
 292         .llseek = default_llseek,
 293 };
 294
 295 static ssize_t start_recovery_write(struct file *file,
 296                                     const char __user *user_buf,
 297                                     size_t count, loff_t *ppos)
 298 {
 299         struct wl1271 *wl = file->private_data;
 300
 301         mutex_lock(&wl->mutex);
 302         wl12xx_queue_recovery_work(wl);
 303         mutex_unlock(&wl->mutex);
 304
 305         return count;
 306 }
 307
 308 static const struct file_operations start_recovery_ops = {
 309         .write = start_recovery_write,
 310         .open = wl1271_open_file_generic,
 311         .llseek = default_llseek,
 312 };
 313
 314 static ssize_t driver_state_read(struct file *file, char __user *user_buf,
 315                                  size_t count, loff_t *ppos)
 316 {
 317         struct wl1271 *wl = file->private_data;
 318         int res = 0;
 319         char buf[1024];
 320
 321         mutex_lock(&wl->mutex);
 322
 323 #define DRIVER_STATE_PRINT(x, fmt)   \
 324         (res += scnprintf(buf + res, sizeof(buf) - res,\
 325                           #x " = " fmt "\n", wl->x))
 326
 327 #define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld")
 328 #define DRIVER_STATE_PRINT_INT(x)  DRIVER_STATE_PRINT(x, "%d")
 329 #define DRIVER_STATE_PRINT_STR(x)  DRIVER_STATE_PRINT(x, "%s")
 330 #define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx")
 331 #define DRIVER_STATE_PRINT_HEX(x)  DRIVER_STATE_PRINT(x, "0x%x")
 332
 333         DRIVER_STATE_PRINT_INT(tx_blocks_available);
 334         DRIVER_STATE_PRINT_INT(tx_allocated_blocks);
 335         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]);
 336         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]);
 337         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]);
 338         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]);
 339         DRIVER_STATE_PRINT_INT(tx_frames_cnt);
 340         DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]);
 341         DRIVER_STATE_PRINT_INT(tx_queue_count[0]);
 342         DRIVER_STATE_PRINT_INT(tx_queue_count[1]);
 343         DRIVER_STATE_PRINT_INT(tx_queue_count[2]);
 344         DRIVER_STATE_PRINT_INT(tx_queue_count[3]);
 345         DRIVER_STATE_PRINT_INT(tx_packets_count);
 346         DRIVER_STATE_PRINT_INT(tx_results_count);
 347         DRIVER_STATE_PRINT_LHEX(flags);
 348         DRIVER_STATE_PRINT_INT(tx_blocks_freed);
 349         DRIVER_STATE_PRINT_INT(tx_security_last_seq_lsb);
 350         DRIVER_STATE_PRINT_INT(rx_counter);
 351         DRIVER_STATE_PRINT_INT(session_counter);
 352         DRIVER_STATE_PRINT_INT(state);
 353         DRIVER_STATE_PRINT_INT(bss_type);
 354         DRIVER_STATE_PRINT_INT(channel);
 355         DRIVER_STATE_PRINT_HEX(rate_set);
 356         DRIVER_STATE_PRINT_HEX(basic_rate_set);
 357         DRIVER_STATE_PRINT_HEX(basic_rate);
 358         DRIVER_STATE_PRINT_INT(band);
 359         DRIVER_STATE_PRINT_INT(beacon_int);
 360         DRIVER_STATE_PRINT_INT(psm_entry_retry);
 361         DRIVER_STATE_PRINT_INT(ps_poll_failures);
 362         DRIVER_STATE_PRINT_INT(power_level);
 363         DRIVER_STATE_PRINT_INT(rssi_thold);
 364         DRIVER_STATE_PRINT_INT(last_rssi_event);
 365         DRIVER_STATE_PRINT_INT(sg_enabled);
 366         DRIVER_STATE_PRINT_INT(enable_11a);
 367         DRIVER_STATE_PRINT_INT(noise);
 368         DRIVER_STATE_PRINT_LHEX(ap_hlid_map[0]);
 369         DRIVER_STATE_PRINT_INT(last_tx_hlid);
 370         DRIVER_STATE_PRINT_INT(ba_support);
 371         DRIVER_STATE_PRINT_HEX(ba_rx_bitmap);
 372         DRIVER_STATE_PRINT_HEX(ap_fw_ps_map);
 373         DRIVER_STATE_PRINT_LHEX(ap_ps_map);
 374         DRIVER_STATE_PRINT_HEX(quirks);
 375         DRIVER_STATE_PRINT_HEX(irq);
 376         DRIVER_STATE_PRINT_HEX(ref_clock);
 377         DRIVER_STATE_PRINT_HEX(tcxo_clock);
 378         DRIVER_STATE_PRINT_HEX(hw_pg_ver);
 379         DRIVER_STATE_PRINT_HEX(platform_quirks);
 380         DRIVER_STATE_PRINT_HEX(chip.id);
 381         DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
 382         DRIVER_STATE_PRINT_INT(sched_scanning);
 383
 384 #undef DRIVER_STATE_PRINT_INT
 385 #undef DRIVER_STATE_PRINT_LONG
 386 #undef DRIVER_STATE_PRINT_HEX
 387 #undef DRIVER_STATE_PRINT_LHEX
 388 #undef DRIVER_STATE_PRINT_STR
 389 #undef DRIVER_STATE_PRINT
 390
 391         mutex_unlock(&wl->mutex);
 392
 393         return simple_read_from_buffer(user_buf, count, ppos, buf, res);
 394 }
 395
 396 static const struct file_operations driver_state_ops = {
 397         .read = driver_state_read,
 398         .open = wl1271_open_file_generic,
 399         .llseek = default_llseek,
 400 };
 401
 402 static ssize_t dtim_interval_read(struct file *file, char __user *user_buf,
 403                                   size_t count, loff_t *ppos)
 404 {
 405         struct wl1271 *wl = file->private_data;
 406         u8 value;
 407
 408         if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
 409             wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
 410                 value = wl->conf.conn.listen_interval;
 411         else
 412                 value = 0;
 413
 414         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
 415 }
 416
 417 static ssize_t dtim_interval_write(struct file *file,
 418                                    const char __user *user_buf,
 419                                    size_t count, loff_t *ppos)
 420 {
 421         struct wl1271 *wl = file->private_data;
 422         unsigned long value;
 423         int ret;
 424
 425         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 426         if (ret < 0) {
 427                 wl1271_warning("illegal value for dtim_interval");
 428                 return -EINVAL;
 429         }
 430
 431         if (value < 1 || value > 10) {
 432                 wl1271_warning("dtim value is not in valid range");
 433                 return -ERANGE;
 434         }
 435
 436         mutex_lock(&wl->mutex);
 437
 438         wl->conf.conn.listen_interval = value;
 439         /* for some reason there are different event types for 1 and >1 */
 440         if (value == 1)
 441                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
 442         else
 443                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
 444
 445         /*
 446          * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
 447          * take effect on the next time we enter psm.
 448          */
 449         mutex_unlock(&wl->mutex);
 450         return count;
 451 }
 452
 453 static const struct file_operations dtim_interval_ops = {
 454         .read = dtim_interval_read,
 455         .write = dtim_interval_write,
 456         .open = wl1271_open_file_generic,
 457         .llseek = default_llseek,
 458 };
 459
 460 static ssize_t beacon_interval_read(struct file *file, char __user *user_buf,
 461                                     size_t count, loff_t *ppos)
 462 {
 463         struct wl1271 *wl = file->private_data;
 464         u8 value;
 465
 466         if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON ||
 467             wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS)
 468                 value = wl->conf.conn.listen_interval;
 469         else
 470                 value = 0;
 471
 472         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
 473 }
 474
 475 static ssize_t beacon_interval_write(struct file *file,
 476                                      const char __user *user_buf,
 477                                      size_t count, loff_t *ppos)
 478 {
 479         struct wl1271 *wl = file->private_data;
 480         unsigned long value;
 481         int ret;
 482
 483         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 484         if (ret < 0) {
 485                 wl1271_warning("illegal value for beacon_interval");
 486                 return -EINVAL;
 487         }
 488
 489         if (value < 1 || value > 255) {
 490                 wl1271_warning("beacon interval value is not in valid range");
 491                 return -ERANGE;
 492         }
 493
 494         mutex_lock(&wl->mutex);
 495
 496         wl->conf.conn.listen_interval = value;
 497         /* for some reason there are different event types for 1 and >1 */
 498         if (value == 1)
 499                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON;
 500         else
 501                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS;
 502
 503         /*
 504          * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
 505          * take effect on the next time we enter psm.
 506          */
 507         mutex_unlock(&wl->mutex);
 508         return count;
 509 }
 510
 511 static const struct file_operations beacon_interval_ops = {
 512         .read = beacon_interval_read,
 513         .write = beacon_interval_write,
 514         .open = wl1271_open_file_generic,
 515         .llseek = default_llseek,
 516 };
 517
 518 static ssize_t rx_streaming_interval_write(struct file *file,
 519                            const char __user *user_buf,
 520                            size_t count, loff_t *ppos)
 521 {
 522         struct wl1271 *wl = file->private_data;
 523         unsigned long value;
 524         int ret;
 525
 526         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 527         if (ret < 0) {
 528                 wl1271_warning("illegal value in rx_streaming_interval!");
 529                 return -EINVAL;
 530         }
 531
 532         /* valid values: 0, 10-100 */
 533         if (value && (value < 10 || value > 100)) {
 534                 wl1271_warning("value is not in range!");
 535                 return -ERANGE;
 536         }
 537
 538         mutex_lock(&wl->mutex);
 539
 540         wl->conf.rx_streaming.interval = value;
 541
 542         ret = wl1271_ps_elp_wakeup(wl);
 543         if (ret < 0)
 544                 goto out;
 545
 546         wl1271_recalc_rx_streaming(wl);
 547
 548         wl1271_ps_elp_sleep(wl);
 549 out:
 550         mutex_unlock(&wl->mutex);
 551         return count;
 552 }
 553
 554 static ssize_t rx_streaming_interval_read(struct file *file,
 555                             char __user *userbuf,
 556                             size_t count, loff_t *ppos)
 557 {
 558         struct wl1271 *wl = file->private_data;
 559         return wl1271_format_buffer(userbuf, count, ppos,
 560                                     "%d\n", wl->conf.rx_streaming.interval);
 561 }
 562
 563 static const struct file_operations rx_streaming_interval_ops = {
 564         .read = rx_streaming_interval_read,
 565         .write = rx_streaming_interval_write,
 566         .open = wl1271_open_file_generic,
 567         .llseek = default_llseek,
 568 };
 569
 570 static ssize_t rx_streaming_always_write(struct file *file,
 571                            const char __user *user_buf,
 572                            size_t count, loff_t *ppos)
 573 {
 574         struct wl1271 *wl = file->private_data;
 575         unsigned long value;
 576         int ret;
 577
 578         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 579         if (ret < 0) {
 580                 wl1271_warning("illegal value in rx_streaming_write!");
 581                 return -EINVAL;
 582         }
 583
 584         /* valid values: 0, 10-100 */
 585         if (!(value == 0 || value == 1)) {
 586                 wl1271_warning("value is not in valid!");
 587                 return -EINVAL;
 588         }
 589
 590         mutex_lock(&wl->mutex);
 591
 592         wl->conf.rx_streaming.always = value;
 593
 594         ret = wl1271_ps_elp_wakeup(wl);
 595         if (ret < 0)
 596                 goto out;
 597
 598         wl1271_recalc_rx_streaming(wl);
 599
 600         wl1271_ps_elp_sleep(wl);
 601 out:
 602         mutex_unlock(&wl->mutex);
 603         return count;
 604 }
 605
 606 static ssize_t rx_streaming_always_read(struct file *file,
 607                             char __user *userbuf,
 608                             size_t count, loff_t *ppos)
 609 {
 610         struct wl1271 *wl = file->private_data;
 611         return wl1271_format_buffer(userbuf, count, ppos,
 612                                     "%d\n", wl->conf.rx_streaming.always);
 613 }
 614
 615 static const struct file_operations rx_streaming_always_ops = {
 616         .read = rx_streaming_always_read,
 617         .write = rx_streaming_always_write,
 618         .open = wl1271_open_file_generic,
 619         .llseek = default_llseek,
 620 };
 621
 622 static ssize_t beacon_filtering_write(struct file *file,
 623                                       const char __user *user_buf,
 624                                       size_t count, loff_t *ppos)
 625 {
 626         struct wl1271 *wl = file->private_data;
 627         char buf[10];
 628         size_t len;
 629         unsigned long value;
 630         int ret;
 631
 632         len = min(count, sizeof(buf) - 1);
 633         if (copy_from_user(buf, user_buf, len))
 634                 return -EFAULT;
 635         buf[len] = '\0';
 636
 637         ret = kstrtoul(buf, 0, &value);
 638         if (ret < 0) {
 639                 wl1271_warning("illegal value for beacon_filtering!");
 640                 return -EINVAL;
 641         }
 642
 643         mutex_lock(&wl->mutex);
 644
 645         ret = wl1271_ps_elp_wakeup(wl);
 646         if (ret < 0)
 647                 goto out;
 648
 649         ret = wl1271_acx_beacon_filter_opt(wl, !!value);
 650
 651         wl1271_ps_elp_sleep(wl);
 652 out:
 653         mutex_unlock(&wl->mutex);
 654         return count;
 655 }
 656
 657 static const struct file_operations beacon_filtering_ops = {
 658         .write = beacon_filtering_write,
 659         .open = wl1271_open_file_generic,
 660         .llseek = default_llseek,
 661 };
 662
 663 static int wl1271_debugfs_add_files(struct wl1271 *wl,
 664                                      struct dentry *rootdir)
 665 {
 666         int ret = 0;
 667         struct dentry *entry, *stats, *streaming;
 668
 669         stats = debugfs_create_dir("fw-statistics", rootdir);
 670         if (!stats || IS_ERR(stats)) {
 671                 entry = stats;
 672                 goto err;
 673         }
 674
 675         DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
 676
 677         DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
 678         DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
 679         DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
 680         DEBUGFS_FWSTATS_ADD(rx, dropped);
 681         DEBUGFS_FWSTATS_ADD(rx, fcs_err);
 682         DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
 683         DEBUGFS_FWSTATS_ADD(rx, path_reset);
 684         DEBUGFS_FWSTATS_ADD(rx, reset_counter);
 685
 686         DEBUGFS_FWSTATS_ADD(dma, rx_requested);
 687         DEBUGFS_FWSTATS_ADD(dma, rx_errors);
 688         DEBUGFS_FWSTATS_ADD(dma, tx_requested);
 689         DEBUGFS_FWSTATS_ADD(dma, tx_errors);
 690
 691         DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
 692         DEBUGFS_FWSTATS_ADD(isr, fiqs);
 693         DEBUGFS_FWSTATS_ADD(isr, rx_headers);
 694         DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
 695         DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
 696         DEBUGFS_FWSTATS_ADD(isr, irqs);
 697         DEBUGFS_FWSTATS_ADD(isr, tx_procs);
 698         DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
 699         DEBUGFS_FWSTATS_ADD(isr, dma0_done);
 700         DEBUGFS_FWSTATS_ADD(isr, dma1_done);
 701         DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
 702         DEBUGFS_FWSTATS_ADD(isr, commands);
 703         DEBUGFS_FWSTATS_ADD(isr, rx_procs);
 704         DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
 705         DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
 706         DEBUGFS_FWSTATS_ADD(isr, pci_pm);
 707         DEBUGFS_FWSTATS_ADD(isr, wakeups);
 708         DEBUGFS_FWSTATS_ADD(isr, low_rssi);
 709
 710         DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
 711         DEBUGFS_FWSTATS_ADD(wep, default_key_count);
 712         /* skipping wep.reserved */
 713         DEBUGFS_FWSTATS_ADD(wep, key_not_found);
 714         DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
 715         DEBUGFS_FWSTATS_ADD(wep, packets);
 716         DEBUGFS_FWSTATS_ADD(wep, interrupt);
 717
 718         DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
 719         DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
 720         DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
 721         DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
 722         DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
 723         DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
 724         DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
 725         DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
 726         DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
 727         DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
 728         DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
 729         DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
 730         /* skipping cont_miss_bcns_spread for now */
 731         DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);
 732
 733         DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
 734         DEBUGFS_FWSTATS_ADD(mic, calc_failure);
 735
 736         DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
 737         DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
 738         DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
 739         DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
 740         DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
 741         DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);
 742
 743         DEBUGFS_FWSTATS_ADD(event, heart_beat);
 744         DEBUGFS_FWSTATS_ADD(event, calibration);
 745         DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
 746         DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
 747         DEBUGFS_FWSTATS_ADD(event, rx_pool);
 748         DEBUGFS_FWSTATS_ADD(event, oom_late);
 749         DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
 750         DEBUGFS_FWSTATS_ADD(event, tx_stuck);
 751
 752         DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
 753         DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
 754         DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
 755         DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
 756         DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
 757         DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
 758         DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);
 759
 760         DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
 761         DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
 762         DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
 763         DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
 764         DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
 765
 766         DEBUGFS_ADD(tx_queue_len, rootdir);
 767         DEBUGFS_ADD(retry_count, rootdir);
 768         DEBUGFS_ADD(excessive_retries, rootdir);
 769
 770         DEBUGFS_ADD(gpio_power, rootdir);
 771         DEBUGFS_ADD(start_recovery, rootdir);
 772         DEBUGFS_ADD(driver_state, rootdir);
 773         DEBUGFS_ADD(dtim_interval, rootdir);
 774         DEBUGFS_ADD(beacon_interval, rootdir);
 775         DEBUGFS_ADD(beacon_filtering, rootdir);
 776
 777         streaming = debugfs_create_dir("rx_streaming", rootdir);
 778         if (!streaming || IS_ERR(streaming))
 779                 goto err;
 780
 781         DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming);
 782         DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming);
 783
 784
 785         return 0;
 786
 787 err:
 788         if (IS_ERR(entry))
 789                 ret = PTR_ERR(entry);
 790         else
 791                 ret = -ENOMEM;
 792
 793         return ret;
 794 }
 795
 796 void wl1271_debugfs_reset(struct wl1271 *wl)
 797 {
 798         if (!wl->stats.fw_stats)
 799                 return;
 800
 801         memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
 802         wl->stats.retry_count = 0;
 803         wl->stats.excessive_retries = 0;
 804 }
 805
 806 int wl1271_debugfs_init(struct wl1271 *wl)
 807 {
 808         int ret;
 809         struct dentry *rootdir;
 810
 811         rootdir = debugfs_create_dir(KBUILD_MODNAME,
 812                                      wl->hw->wiphy->debugfsdir);
 813
 814         if (IS_ERR(rootdir)) {
 815                 ret = PTR_ERR(rootdir);
 816                 goto err;
 817         }
 818
 819         wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats),
 820                                       GFP_KERNEL);
 821
 822         if (!wl->stats.fw_stats) {
 823                 ret = -ENOMEM;
 824                 goto err_fw;
 825         }
 826
 827         wl->stats.fw_stats_update = jiffies;
 828
 829         ret = wl1271_debugfs_add_files(wl, rootdir);
 830
 831         if (ret < 0)
 832                 goto err_file;
 833
 834         return 0;
 835
 836 err_file:
 837         kfree(wl->stats.fw_stats);
 838         wl->stats.fw_stats = NULL;
 839
 840 err_fw:
 841         debugfs_remove_recursive(rootdir);
 842
 843 err:
 844         return ret;
 845 }
 846
 847 void wl1271_debugfs_exit(struct wl1271 *wl)
 848 {
 849         kfree(wl->stats.fw_stats);
 850         wl->stats.fw_stats = NULL;
 851 }