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 "debug.h"
  31 #include "acx.h"
  32 #include "ps.h"
  33 #include "io.h"
  34 #include "tx.h"
  35
  36 /* ms */
  37 #define WL1271_DEBUGFS_STATS_LIFETIME 1000
  38
  39 /* debugfs macros idea from mac80211 */
  40 #define DEBUGFS_FORMAT_BUFFER_SIZE 100
  41 static int wl1271_format_buffer(char __user *userbuf, size_t count,
  42                                     loff_t *ppos, char *fmt, ...)
  43 {
  44         va_list args;
  45         char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
  46         int res;
  47
  48         va_start(args, fmt);
  49         res = vscnprintf(buf, sizeof(buf), fmt, args);
  50         va_end(args);
  51
  52         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
  53 }
  54
  55 #define DEBUGFS_READONLY_FILE(name, fmt, value...)                      \
  56 static ssize_t name## _read(struct file *file, char __user *userbuf,    \
  57                             size_t count, loff_t *ppos)                 \
  58 {                                                                       \
  59         struct wl1271 *wl = file->private_data;                         \
  60         return wl1271_format_buffer(userbuf, count, ppos,               \
  61                                     fmt "\n", ##value);                 \
  62 }                                                                       \
  63                                                                         \
  64 static const struct file_operations name## _ops = {                     \
  65         .read = name## _read,                                           \
  66         .open = wl1271_open_file_generic,                               \
  67         .llseek = generic_file_llseek,                                  \
  68 };
  69
  70 #define DEBUGFS_ADD(name, parent)                                       \
  71         entry = debugfs_create_file(#name, 0400, parent,                \
  72                                     wl, &name## _ops);                  \
  73         if (!entry || IS_ERR(entry))                                    \
  74                 goto err;                                               \
  75
  76 #define DEBUGFS_ADD_PREFIX(prefix, name, parent)                        \
  77         do {                                                            \
  78                 entry = debugfs_create_file(#name, 0400, parent,        \
  79                                     wl, &prefix## _## name## _ops);     \
  80                 if (!entry || IS_ERR(entry))                            \
  81                         goto err;                                       \
  82         } while (0);
  83
  84 #define DEBUGFS_FWSTATS_FILE(sub, name, fmt)                            \
  85 static ssize_t sub## _ ##name## _read(struct file *file,                \
  86                                       char __user *userbuf,             \
  87                                       size_t count, loff_t *ppos)       \
  88 {                                                                       \
  89         struct wl1271 *wl = file->private_data;                         \
  90                                                                         \
  91         wl1271_debugfs_update_stats(wl);                                \
  92                                                                         \
  93         return wl1271_format_buffer(userbuf, count, ppos, fmt "\n",     \
  94                                     wl->stats.fw_stats->sub.name);      \
  95 }                                                                       \
  96                                                                         \
  97 static const struct file_operations sub## _ ##name## _ops = {           \
  98         .read = sub## _ ##name## _read,                                 \
  99         .open = wl1271_open_file_generic,                               \
 100         .llseek = generic_file_llseek,                                  \
 101 };
 102
 103 #define DEBUGFS_FWSTATS_ADD(sub, name)                          \
 104         DEBUGFS_ADD(sub## _ ##name, stats)
 105
 106 static void wl1271_debugfs_update_stats(struct wl1271 *wl)
 107 {
 108         int ret;
 109
 110         mutex_lock(&wl->mutex);
 111
 112         ret = wl1271_ps_elp_wakeup(wl);
 113         if (ret < 0)
 114                 goto out;
 115
 116         if (wl->state == WL1271_STATE_ON &&
 117             time_after(jiffies, wl->stats.fw_stats_update +
 118                        msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) {
 119                 wl1271_acx_statistics(wl, wl->stats.fw_stats);
 120                 wl->stats.fw_stats_update = jiffies;
 121         }
 122
 123         wl1271_ps_elp_sleep(wl);
 124
 125 out:
 126         mutex_unlock(&wl->mutex);
 127 }
 128
 129 static int wl1271_open_file_generic(struct inode *inode, struct file *file)
 130 {
 131         file->private_data = inode->i_private;
 132         return 0;
 133 }
 134
 135 DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, "%u");
 136
 137 DEBUGFS_FWSTATS_FILE(rx, out_of_mem, "%u");
 138 DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, "%u");
 139 DEBUGFS_FWSTATS_FILE(rx, hw_stuck, "%u");
 140 DEBUGFS_FWSTATS_FILE(rx, dropped, "%u");
 141 DEBUGFS_FWSTATS_FILE(rx, fcs_err, "%u");
 142 DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, "%u");
 143 DEBUGFS_FWSTATS_FILE(rx, path_reset, "%u");
 144 DEBUGFS_FWSTATS_FILE(rx, reset_counter, "%u");
 145
 146 DEBUGFS_FWSTATS_FILE(dma, rx_requested, "%u");
 147 DEBUGFS_FWSTATS_FILE(dma, rx_errors, "%u");
 148 DEBUGFS_FWSTATS_FILE(dma, tx_requested, "%u");
 149 DEBUGFS_FWSTATS_FILE(dma, tx_errors, "%u");
 150
 151 DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, "%u");
 152 DEBUGFS_FWSTATS_FILE(isr, fiqs, "%u");
 153 DEBUGFS_FWSTATS_FILE(isr, rx_headers, "%u");
 154 DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, "%u");
 155 DEBUGFS_FWSTATS_FILE(isr, rx_rdys, "%u");
 156 DEBUGFS_FWSTATS_FILE(isr, irqs, "%u");
 157 DEBUGFS_FWSTATS_FILE(isr, tx_procs, "%u");
 158 DEBUGFS_FWSTATS_FILE(isr, decrypt_done, "%u");
 159 DEBUGFS_FWSTATS_FILE(isr, dma0_done, "%u");
 160 DEBUGFS_FWSTATS_FILE(isr, dma1_done, "%u");
 161 DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, "%u");
 162 DEBUGFS_FWSTATS_FILE(isr, commands, "%u");
 163 DEBUGFS_FWSTATS_FILE(isr, rx_procs, "%u");
 164 DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, "%u");
 165 DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, "%u");
 166 DEBUGFS_FWSTATS_FILE(isr, pci_pm, "%u");
 167 DEBUGFS_FWSTATS_FILE(isr, wakeups, "%u");
 168 DEBUGFS_FWSTATS_FILE(isr, low_rssi, "%u");
 169
 170 DEBUGFS_FWSTATS_FILE(wep, addr_key_count, "%u");
 171 DEBUGFS_FWSTATS_FILE(wep, default_key_count, "%u");
 172 /* skipping wep.reserved */
 173 DEBUGFS_FWSTATS_FILE(wep, key_not_found, "%u");
 174 DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, "%u");
 175 DEBUGFS_FWSTATS_FILE(wep, packets, "%u");
 176 DEBUGFS_FWSTATS_FILE(wep, interrupt, "%u");
 177
 178 DEBUGFS_FWSTATS_FILE(pwr, ps_enter, "%u");
 179 DEBUGFS_FWSTATS_FILE(pwr, elp_enter, "%u");
 180 DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, "%u");
 181 DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, "%u");
 182 DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, "%u");
 183 DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, "%u");
 184 DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, "%u");
 185 DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, "%u");
 186 DEBUGFS_FWSTATS_FILE(pwr, power_save_off, "%u");
 187 DEBUGFS_FWSTATS_FILE(pwr, enable_ps, "%u");
 188 DEBUGFS_FWSTATS_FILE(pwr, disable_ps, "%u");
 189 DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, "%u");
 190 /* skipping cont_miss_bcns_spread for now */
 191 DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, "%u");
 192
 193 DEBUGFS_FWSTATS_FILE(mic, rx_pkts, "%u");
 194 DEBUGFS_FWSTATS_FILE(mic, calc_failure, "%u");
 195
 196 DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, "%u");
 197 DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, "%u");
 198 DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, "%u");
 199 DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, "%u");
 200 DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, "%u");
 201 DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, "%u");
 202
 203 DEBUGFS_FWSTATS_FILE(event, heart_beat, "%u");
 204 DEBUGFS_FWSTATS_FILE(event, calibration, "%u");
 205 DEBUGFS_FWSTATS_FILE(event, rx_mismatch, "%u");
 206 DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, "%u");
 207 DEBUGFS_FWSTATS_FILE(event, rx_pool, "%u");
 208 DEBUGFS_FWSTATS_FILE(event, oom_late, "%u");
 209 DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, "%u");
 210 DEBUGFS_FWSTATS_FILE(event, tx_stuck, "%u");
 211
 212 DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, "%u");
 213 DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, "%u");
 214 DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, "%u");
 215 DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, "%u");
 216 DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, "%u");
 217 DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, "%u");
 218 DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, "%u");
 219
 220 DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, "%u");
 221 DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, "%u");
 222 DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data, "%u");
 223 DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, "%u");
 224 DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, "%u");
 225
 226 DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
 227 DEBUGFS_READONLY_FILE(excessive_retries, "%u",
 228                       wl->stats.excessive_retries);
 229
 230 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
 231                                  size_t count, loff_t *ppos)
 232 {
 233         struct wl1271 *wl = file->private_data;
 234         u32 queue_len;
 235         char buf[20];
 236         int res;
 237
 238         queue_len = wl1271_tx_total_queue_count(wl);
 239
 240         res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
 241         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
 242 }
 243
 244 static const struct file_operations tx_queue_len_ops = {
 245         .read = tx_queue_len_read,
 246         .open = wl1271_open_file_generic,
 247         .llseek = default_llseek,
 248 };
 249
 250 static ssize_t gpio_power_read(struct file *file, char __user *user_buf,
 251                           size_t count, loff_t *ppos)
 252 {
 253         struct wl1271 *wl = file->private_data;
 254         bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 255
 256         int res;
 257         char buf[10];
 258
 259         res = scnprintf(buf, sizeof(buf), "%d\n", state);
 260
 261         return simple_read_from_buffer(user_buf, count, ppos, buf, res);
 262 }
 263
 264 static ssize_t gpio_power_write(struct file *file,
 265                            const char __user *user_buf,
 266                            size_t count, loff_t *ppos)
 267 {
 268         struct wl1271 *wl = file->private_data;
 269         unsigned long value;
 270         int ret;
 271
 272         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 273         if (ret < 0) {
 274                 wl1271_warning("illegal value in gpio_power");
 275                 return -EINVAL;
 276         }
 277
 278         mutex_lock(&wl->mutex);
 279
 280         if (value)
 281                 wl1271_power_on(wl);
 282         else
 283                 wl1271_power_off(wl);
 284
 285         mutex_unlock(&wl->mutex);
 286         return count;
 287 }
 288
 289 static const struct file_operations gpio_power_ops = {
 290         .read = gpio_power_read,
 291         .write = gpio_power_write,
 292         .open = wl1271_open_file_generic,
 293         .llseek = default_llseek,
 294 };
 295
 296 static ssize_t start_recovery_write(struct file *file,
 297                                     const char __user *user_buf,
 298                                     size_t count, loff_t *ppos)
 299 {
 300         struct wl1271 *wl = file->private_data;
 301
 302         mutex_lock(&wl->mutex);
 303         wl12xx_queue_recovery_work(wl);
 304         mutex_unlock(&wl->mutex);
 305
 306         return count;
 307 }
 308
 309 static const struct file_operations start_recovery_ops = {
 310         .write = start_recovery_write,
 311         .open = wl1271_open_file_generic,
 312         .llseek = default_llseek,
 313 };
 314
 315 static ssize_t driver_state_read(struct file *file, char __user *user_buf,
 316                                  size_t count, loff_t *ppos)
 317 {
 318         struct wl1271 *wl = file->private_data;
 319         int res = 0;
 320         ssize_t ret;
 321         char *buf;
 322
 323 #define DRIVER_STATE_BUF_LEN 1024
 324
 325         buf = kmalloc(DRIVER_STATE_BUF_LEN, GFP_KERNEL);
 326         if (!buf)
 327                 return -ENOMEM;
 328
 329         mutex_lock(&wl->mutex);
 330
 331 #define DRIVER_STATE_PRINT(x, fmt)   \
 332         (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\
 333                           #x " = " fmt "\n", wl->x))
 334
 335 #define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld")
 336 #define DRIVER_STATE_PRINT_INT(x)  DRIVER_STATE_PRINT(x, "%d")
 337 #define DRIVER_STATE_PRINT_STR(x)  DRIVER_STATE_PRINT(x, "%s")
 338 #define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx")
 339 #define DRIVER_STATE_PRINT_HEX(x)  DRIVER_STATE_PRINT(x, "0x%x")
 340
 341         DRIVER_STATE_PRINT_INT(tx_blocks_available);
 342         DRIVER_STATE_PRINT_INT(tx_allocated_blocks);
 343         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]);
 344         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]);
 345         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]);
 346         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]);
 347         DRIVER_STATE_PRINT_INT(tx_frames_cnt);
 348         DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]);
 349         DRIVER_STATE_PRINT_INT(tx_queue_count[0]);
 350         DRIVER_STATE_PRINT_INT(tx_queue_count[1]);
 351         DRIVER_STATE_PRINT_INT(tx_queue_count[2]);
 352         DRIVER_STATE_PRINT_INT(tx_queue_count[3]);
 353         DRIVER_STATE_PRINT_INT(tx_packets_count);
 354         DRIVER_STATE_PRINT_INT(tx_results_count);
 355         DRIVER_STATE_PRINT_LHEX(flags);
 356         DRIVER_STATE_PRINT_INT(tx_blocks_freed);
 357         DRIVER_STATE_PRINT_INT(rx_counter);
 358         DRIVER_STATE_PRINT_INT(state);
 359         DRIVER_STATE_PRINT_INT(channel);
 360         DRIVER_STATE_PRINT_INT(band);
 361         DRIVER_STATE_PRINT_INT(power_level);
 362         DRIVER_STATE_PRINT_INT(sg_enabled);
 363         DRIVER_STATE_PRINT_INT(enable_11a);
 364         DRIVER_STATE_PRINT_INT(noise);
 365         DRIVER_STATE_PRINT_HEX(ap_fw_ps_map);
 366         DRIVER_STATE_PRINT_LHEX(ap_ps_map);
 367         DRIVER_STATE_PRINT_HEX(quirks);
 368         DRIVER_STATE_PRINT_HEX(irq);
 369         DRIVER_STATE_PRINT_HEX(ref_clock);
 370         DRIVER_STATE_PRINT_HEX(tcxo_clock);
 371         DRIVER_STATE_PRINT_HEX(hw_pg_ver);
 372         DRIVER_STATE_PRINT_HEX(platform_quirks);
 373         DRIVER_STATE_PRINT_HEX(chip.id);
 374         DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
 375         DRIVER_STATE_PRINT_INT(sched_scanning);
 376
 377 #undef DRIVER_STATE_PRINT_INT
 378 #undef DRIVER_STATE_PRINT_LONG
 379 #undef DRIVER_STATE_PRINT_HEX
 380 #undef DRIVER_STATE_PRINT_LHEX
 381 #undef DRIVER_STATE_PRINT_STR
 382 #undef DRIVER_STATE_PRINT
 383 #undef DRIVER_STATE_BUF_LEN
 384
 385         mutex_unlock(&wl->mutex);
 386
 387         ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
 388         kfree(buf);
 389         return ret;
 390 }
 391
 392 static const struct file_operations driver_state_ops = {
 393         .read = driver_state_read,
 394         .open = wl1271_open_file_generic,
 395         .llseek = default_llseek,
 396 };
 397
 398 static ssize_t vifs_state_read(struct file *file, char __user *user_buf,
 399                                  size_t count, loff_t *ppos)
 400 {
 401         struct wl1271 *wl = file->private_data;
 402         struct wl12xx_vif *wlvif;
 403         int ret, res = 0;
 404         const int buf_size = 4096;
 405         char *buf;
 406         char tmp_buf[64];
 407
 408         buf = kzalloc(buf_size, GFP_KERNEL);
 409         if (!buf)
 410                 return -ENOMEM;
 411
 412         mutex_lock(&wl->mutex);
 413
 414 #define VIF_STATE_PRINT(x, fmt)                         \
 415         (res += scnprintf(buf + res, buf_size - res,    \
 416                           #x " = " fmt "\n", wlvif->x))
 417
 418 #define VIF_STATE_PRINT_LONG(x)  VIF_STATE_PRINT(x, "%ld")
 419 #define VIF_STATE_PRINT_INT(x)   VIF_STATE_PRINT(x, "%d")
 420 #define VIF_STATE_PRINT_STR(x)   VIF_STATE_PRINT(x, "%s")
 421 #define VIF_STATE_PRINT_LHEX(x)  VIF_STATE_PRINT(x, "0x%lx")
 422 #define VIF_STATE_PRINT_LLHEX(x) VIF_STATE_PRINT(x, "0x%llx")
 423 #define VIF_STATE_PRINT_HEX(x)   VIF_STATE_PRINT(x, "0x%x")
 424
 425 #define VIF_STATE_PRINT_NSTR(x, len)                            \
 426         do {                                                    \
 427                 memset(tmp_buf, 0, sizeof(tmp_buf));            \
 428                 memcpy(tmp_buf, wlvif->x,                       \
 429                        min_t(u8, len, sizeof(tmp_buf) - 1));    \
 430                 res += scnprintf(buf + res, buf_size - res,     \
 431                                  #x " = %s\n", tmp_buf);        \
 432         } while (0)
 433
 434         wl12xx_for_each_wlvif(wl, wlvif) {
 435                 VIF_STATE_PRINT_INT(role_id);
 436                 VIF_STATE_PRINT_INT(bss_type);
 437                 VIF_STATE_PRINT_LHEX(flags);
 438                 VIF_STATE_PRINT_INT(p2p);
 439                 VIF_STATE_PRINT_INT(dev_role_id);
 440                 VIF_STATE_PRINT_INT(dev_hlid);
 441
 442                 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
 443                     wlvif->bss_type == BSS_TYPE_IBSS) {
 444                         VIF_STATE_PRINT_INT(sta.hlid);
 445                         VIF_STATE_PRINT_INT(sta.ba_rx_bitmap);
 446                         VIF_STATE_PRINT_INT(sta.basic_rate_idx);
 447                         VIF_STATE_PRINT_INT(sta.ap_rate_idx);
 448                         VIF_STATE_PRINT_INT(sta.p2p_rate_idx);
 449                 } else {
 450                         VIF_STATE_PRINT_INT(ap.global_hlid);
 451                         VIF_STATE_PRINT_INT(ap.bcast_hlid);
 452                         VIF_STATE_PRINT_LHEX(ap.sta_hlid_map[0]);
 453                         VIF_STATE_PRINT_INT(ap.mgmt_rate_idx);
 454                         VIF_STATE_PRINT_INT(ap.bcast_rate_idx);
 455                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[0]);
 456                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[1]);
 457                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[2]);
 458                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[3]);
 459                 }
 460                 VIF_STATE_PRINT_INT(last_tx_hlid);
 461                 VIF_STATE_PRINT_LHEX(links_map[0]);
 462                 VIF_STATE_PRINT_NSTR(ssid, wlvif->ssid_len);
 463                 VIF_STATE_PRINT_INT(band);
 464                 VIF_STATE_PRINT_INT(channel);
 465                 VIF_STATE_PRINT_HEX(bitrate_masks[0]);
 466                 VIF_STATE_PRINT_HEX(bitrate_masks[1]);
 467                 VIF_STATE_PRINT_HEX(basic_rate_set);
 468                 VIF_STATE_PRINT_HEX(basic_rate);
 469                 VIF_STATE_PRINT_HEX(rate_set);
 470                 VIF_STATE_PRINT_INT(beacon_int);
 471                 VIF_STATE_PRINT_INT(default_key);
 472                 VIF_STATE_PRINT_INT(aid);
 473                 VIF_STATE_PRINT_INT(session_counter);
 474                 VIF_STATE_PRINT_INT(ps_poll_failures);
 475                 VIF_STATE_PRINT_INT(psm_entry_retry);
 476                 VIF_STATE_PRINT_INT(power_level);
 477                 VIF_STATE_PRINT_INT(rssi_thold);
 478                 VIF_STATE_PRINT_INT(last_rssi_event);
 479                 VIF_STATE_PRINT_INT(ba_support);
 480                 VIF_STATE_PRINT_INT(ba_allowed);
 481                 VIF_STATE_PRINT_LLHEX(tx_security_seq);
 482                 VIF_STATE_PRINT_INT(tx_security_last_seq_lsb);
 483         }
 484
 485 #undef VIF_STATE_PRINT_INT
 486 #undef VIF_STATE_PRINT_LONG
 487 #undef VIF_STATE_PRINT_HEX
 488 #undef VIF_STATE_PRINT_LHEX
 489 #undef VIF_STATE_PRINT_LLHEX
 490 #undef VIF_STATE_PRINT_STR
 491 #undef VIF_STATE_PRINT_NSTR
 492 #undef VIF_STATE_PRINT
 493
 494         mutex_unlock(&wl->mutex);
 495
 496         ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
 497         kfree(buf);
 498         return ret;
 499 }
 500
 501 static const struct file_operations vifs_state_ops = {
 502         .read = vifs_state_read,
 503         .open = wl1271_open_file_generic,
 504         .llseek = default_llseek,
 505 };
 506
 507 static ssize_t dtim_interval_read(struct file *file, char __user *user_buf,
 508                                   size_t count, loff_t *ppos)
 509 {
 510         struct wl1271 *wl = file->private_data;
 511         u8 value;
 512
 513         if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
 514             wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
 515                 value = wl->conf.conn.listen_interval;
 516         else
 517                 value = 0;
 518
 519         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
 520 }
 521
 522 static ssize_t dtim_interval_write(struct file *file,
 523                                    const char __user *user_buf,
 524                                    size_t count, loff_t *ppos)
 525 {
 526         struct wl1271 *wl = file->private_data;
 527         unsigned long value;
 528         int ret;
 529
 530         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 531         if (ret < 0) {
 532                 wl1271_warning("illegal value for dtim_interval");
 533                 return -EINVAL;
 534         }
 535
 536         if (value < 1 || value > 10) {
 537                 wl1271_warning("dtim value is not in valid range");
 538                 return -ERANGE;
 539         }
 540
 541         mutex_lock(&wl->mutex);
 542
 543         wl->conf.conn.listen_interval = value;
 544         /* for some reason there are different event types for 1 and >1 */
 545         if (value == 1)
 546                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
 547         else
 548                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
 549
 550         /*
 551          * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
 552          * take effect on the next time we enter psm.
 553          */
 554         mutex_unlock(&wl->mutex);
 555         return count;
 556 }
 557
 558 static const struct file_operations dtim_interval_ops = {
 559         .read = dtim_interval_read,
 560         .write = dtim_interval_write,
 561         .open = wl1271_open_file_generic,
 562         .llseek = default_llseek,
 563 };
 564
 565 static ssize_t beacon_interval_read(struct file *file, char __user *user_buf,
 566                                     size_t count, loff_t *ppos)
 567 {
 568         struct wl1271 *wl = file->private_data;
 569         u8 value;
 570
 571         if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON ||
 572             wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS)
 573                 value = wl->conf.conn.listen_interval;
 574         else
 575                 value = 0;
 576
 577         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
 578 }
 579
 580 static ssize_t beacon_interval_write(struct file *file,
 581                                      const char __user *user_buf,
 582                                      size_t count, loff_t *ppos)
 583 {
 584         struct wl1271 *wl = file->private_data;
 585         unsigned long value;
 586         int ret;
 587
 588         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 589         if (ret < 0) {
 590                 wl1271_warning("illegal value for beacon_interval");
 591                 return -EINVAL;
 592         }
 593
 594         if (value < 1 || value > 255) {
 595                 wl1271_warning("beacon interval value is not in valid range");
 596                 return -ERANGE;
 597         }
 598
 599         mutex_lock(&wl->mutex);
 600
 601         wl->conf.conn.listen_interval = value;
 602         /* for some reason there are different event types for 1 and >1 */
 603         if (value == 1)
 604                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON;
 605         else
 606                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS;
 607
 608         /*
 609          * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
 610          * take effect on the next time we enter psm.
 611          */
 612         mutex_unlock(&wl->mutex);
 613         return count;
 614 }
 615
 616 static const struct file_operations beacon_interval_ops = {
 617         .read = beacon_interval_read,
 618         .write = beacon_interval_write,
 619         .open = wl1271_open_file_generic,
 620         .llseek = default_llseek,
 621 };
 622
 623 static ssize_t rx_streaming_interval_write(struct file *file,
 624                            const char __user *user_buf,
 625                            size_t count, loff_t *ppos)
 626 {
 627         struct wl1271 *wl = file->private_data;
 628         struct wl12xx_vif *wlvif;
 629         unsigned long value;
 630         int ret;
 631
 632         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 633         if (ret < 0) {
 634                 wl1271_warning("illegal value in rx_streaming_interval!");
 635                 return -EINVAL;
 636         }
 637
 638         /* valid values: 0, 10-100 */
 639         if (value && (value < 10 || value > 100)) {
 640                 wl1271_warning("value is not in range!");
 641                 return -ERANGE;
 642         }
 643
 644         mutex_lock(&wl->mutex);
 645
 646         wl->conf.rx_streaming.interval = value;
 647
 648         ret = wl1271_ps_elp_wakeup(wl);
 649         if (ret < 0)
 650                 goto out;
 651
 652         wl12xx_for_each_wlvif_sta(wl, wlvif) {
 653                 wl1271_recalc_rx_streaming(wl, wlvif);
 654         }
 655
 656         wl1271_ps_elp_sleep(wl);
 657 out:
 658         mutex_unlock(&wl->mutex);
 659         return count;
 660 }
 661
 662 static ssize_t rx_streaming_interval_read(struct file *file,
 663                             char __user *userbuf,
 664                             size_t count, loff_t *ppos)
 665 {
 666         struct wl1271 *wl = file->private_data;
 667         return wl1271_format_buffer(userbuf, count, ppos,
 668                                     "%d\n", wl->conf.rx_streaming.interval);
 669 }
 670
 671 static const struct file_operations rx_streaming_interval_ops = {
 672         .read = rx_streaming_interval_read,
 673         .write = rx_streaming_interval_write,
 674         .open = wl1271_open_file_generic,
 675         .llseek = default_llseek,
 676 };
 677
 678 static ssize_t rx_streaming_always_write(struct file *file,
 679                            const char __user *user_buf,
 680                            size_t count, loff_t *ppos)
 681 {
 682         struct wl1271 *wl = file->private_data;
 683         struct wl12xx_vif *wlvif;
 684         unsigned long value;
 685         int ret;
 686
 687         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 688         if (ret < 0) {
 689                 wl1271_warning("illegal value in rx_streaming_write!");
 690                 return -EINVAL;
 691         }
 692
 693         /* valid values: 0, 10-100 */
 694         if (!(value == 0 || value == 1)) {
 695                 wl1271_warning("value is not in valid!");
 696                 return -EINVAL;
 697         }
 698
 699         mutex_lock(&wl->mutex);
 700
 701         wl->conf.rx_streaming.always = value;
 702
 703         ret = wl1271_ps_elp_wakeup(wl);
 704         if (ret < 0)
 705                 goto out;
 706
 707         wl12xx_for_each_wlvif_sta(wl, wlvif) {
 708                 wl1271_recalc_rx_streaming(wl, wlvif);
 709         }
 710
 711         wl1271_ps_elp_sleep(wl);
 712 out:
 713         mutex_unlock(&wl->mutex);
 714         return count;
 715 }
 716
 717 static ssize_t rx_streaming_always_read(struct file *file,
 718                             char __user *userbuf,
 719                             size_t count, loff_t *ppos)
 720 {
 721         struct wl1271 *wl = file->private_data;
 722         return wl1271_format_buffer(userbuf, count, ppos,
 723                                     "%d\n", wl->conf.rx_streaming.always);
 724 }
 725
 726 static const struct file_operations rx_streaming_always_ops = {
 727         .read = rx_streaming_always_read,
 728         .write = rx_streaming_always_write,
 729         .open = wl1271_open_file_generic,
 730         .llseek = default_llseek,
 731 };
 732
 733 static ssize_t beacon_filtering_write(struct file *file,
 734                                       const char __user *user_buf,
 735                                       size_t count, loff_t *ppos)
 736 {
 737         struct wl1271 *wl = file->private_data;
 738         struct wl12xx_vif *wlvif;
 739         char buf[10];
 740         size_t len;
 741         unsigned long value;
 742         int ret;
 743
 744         len = min(count, sizeof(buf) - 1);
 745         if (copy_from_user(buf, user_buf, len))
 746                 return -EFAULT;
 747         buf[len] = '\0';
 748
 749         ret = kstrtoul(buf, 0, &value);
 750         if (ret < 0) {
 751                 wl1271_warning("illegal value for beacon_filtering!");
 752                 return -EINVAL;
 753         }
 754
 755         mutex_lock(&wl->mutex);
 756
 757         ret = wl1271_ps_elp_wakeup(wl);
 758         if (ret < 0)
 759                 goto out;
 760
 761         wl12xx_for_each_wlvif(wl, wlvif) {
 762                 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value);
 763         }
 764
 765         wl1271_ps_elp_sleep(wl);
 766 out:
 767         mutex_unlock(&wl->mutex);
 768         return count;
 769 }
 770
 771 static const struct file_operations beacon_filtering_ops = {
 772         .write = beacon_filtering_write,
 773         .open = wl1271_open_file_generic,
 774         .llseek = default_llseek,
 775 };
 776
 777 static int wl1271_debugfs_add_files(struct wl1271 *wl,
 778                                      struct dentry *rootdir)
 779 {
 780         int ret = 0;
 781         struct dentry *entry, *stats, *streaming;
 782
 783         stats = debugfs_create_dir("fw-statistics", rootdir);
 784         if (!stats || IS_ERR(stats)) {
 785                 entry = stats;
 786                 goto err;
 787         }
 788
 789         DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
 790
 791         DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
 792         DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
 793         DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
 794         DEBUGFS_FWSTATS_ADD(rx, dropped);
 795         DEBUGFS_FWSTATS_ADD(rx, fcs_err);
 796         DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
 797         DEBUGFS_FWSTATS_ADD(rx, path_reset);
 798         DEBUGFS_FWSTATS_ADD(rx, reset_counter);
 799
 800         DEBUGFS_FWSTATS_ADD(dma, rx_requested);
 801         DEBUGFS_FWSTATS_ADD(dma, rx_errors);
 802         DEBUGFS_FWSTATS_ADD(dma, tx_requested);
 803         DEBUGFS_FWSTATS_ADD(dma, tx_errors);
 804
 805         DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
 806         DEBUGFS_FWSTATS_ADD(isr, fiqs);
 807         DEBUGFS_FWSTATS_ADD(isr, rx_headers);
 808         DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
 809         DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
 810         DEBUGFS_FWSTATS_ADD(isr, irqs);
 811         DEBUGFS_FWSTATS_ADD(isr, tx_procs);
 812         DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
 813         DEBUGFS_FWSTATS_ADD(isr, dma0_done);
 814         DEBUGFS_FWSTATS_ADD(isr, dma1_done);
 815         DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
 816         DEBUGFS_FWSTATS_ADD(isr, commands);
 817         DEBUGFS_FWSTATS_ADD(isr, rx_procs);
 818         DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
 819         DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
 820         DEBUGFS_FWSTATS_ADD(isr, pci_pm);
 821         DEBUGFS_FWSTATS_ADD(isr, wakeups);
 822         DEBUGFS_FWSTATS_ADD(isr, low_rssi);
 823
 824         DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
 825         DEBUGFS_FWSTATS_ADD(wep, default_key_count);
 826         /* skipping wep.reserved */
 827         DEBUGFS_FWSTATS_ADD(wep, key_not_found);
 828         DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
 829         DEBUGFS_FWSTATS_ADD(wep, packets);
 830         DEBUGFS_FWSTATS_ADD(wep, interrupt);
 831
 832         DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
 833         DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
 834         DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
 835         DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
 836         DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
 837         DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
 838         DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
 839         DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
 840         DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
 841         DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
 842         DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
 843         DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
 844         /* skipping cont_miss_bcns_spread for now */
 845         DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);
 846
 847         DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
 848         DEBUGFS_FWSTATS_ADD(mic, calc_failure);
 849
 850         DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
 851         DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
 852         DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
 853         DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
 854         DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
 855         DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);
 856
 857         DEBUGFS_FWSTATS_ADD(event, heart_beat);
 858         DEBUGFS_FWSTATS_ADD(event, calibration);
 859         DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
 860         DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
 861         DEBUGFS_FWSTATS_ADD(event, rx_pool);
 862         DEBUGFS_FWSTATS_ADD(event, oom_late);
 863         DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
 864         DEBUGFS_FWSTATS_ADD(event, tx_stuck);
 865
 866         DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
 867         DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
 868         DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
 869         DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
 870         DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
 871         DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
 872         DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);
 873
 874         DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
 875         DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
 876         DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
 877         DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
 878         DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
 879
 880         DEBUGFS_ADD(tx_queue_len, rootdir);
 881         DEBUGFS_ADD(retry_count, rootdir);
 882         DEBUGFS_ADD(excessive_retries, rootdir);
 883
 884         DEBUGFS_ADD(gpio_power, rootdir);
 885         DEBUGFS_ADD(start_recovery, rootdir);
 886         DEBUGFS_ADD(driver_state, rootdir);
 887         DEBUGFS_ADD(vifs_state, rootdir);
 888         DEBUGFS_ADD(dtim_interval, rootdir);
 889         DEBUGFS_ADD(beacon_interval, rootdir);
 890         DEBUGFS_ADD(beacon_filtering, rootdir);
 891
 892         streaming = debugfs_create_dir("rx_streaming", rootdir);
 893         if (!streaming || IS_ERR(streaming))
 894                 goto err;
 895
 896         DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming);
 897         DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming);
 898
 899
 900         return 0;
 901
 902 err:
 903         if (IS_ERR(entry))
 904                 ret = PTR_ERR(entry);
 905         else
 906                 ret = -ENOMEM;
 907
 908         return ret;
 909 }
 910
 911 void wl1271_debugfs_reset(struct wl1271 *wl)
 912 {
 913         if (!wl->stats.fw_stats)
 914                 return;
 915
 916         memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
 917         wl->stats.retry_count = 0;
 918         wl->stats.excessive_retries = 0;
 919 }
 920
 921 int wl1271_debugfs_init(struct wl1271 *wl)
 922 {
 923         int ret;
 924         struct dentry *rootdir;
 925
 926         rootdir = debugfs_create_dir(KBUILD_MODNAME,
 927                                      wl->hw->wiphy->debugfsdir);
 928
 929         if (IS_ERR(rootdir)) {
 930                 ret = PTR_ERR(rootdir);
 931                 goto err;
 932         }
 933
 934         wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats),
 935                                       GFP_KERNEL);
 936
 937         if (!wl->stats.fw_stats) {
 938                 ret = -ENOMEM;
 939                 goto err_fw;
 940         }
 941
 942         wl->stats.fw_stats_update = jiffies;
 943
 944         ret = wl1271_debugfs_add_files(wl, rootdir);
 945
 946         if (ret < 0)
 947                 goto err_file;
 948
 949         return 0;
 950
 951 err_file:
 952         kfree(wl->stats.fw_stats);
 953         wl->stats.fw_stats = NULL;
 954
 955 err_fw:
 956         debugfs_remove_recursive(rootdir);
 957
 958 err:
 959         return ret;
 960 }
 961
 962 void wl1271_debugfs_exit(struct wl1271 *wl)
 963 {
 964         kfree(wl->stats.fw_stats);
 965         wl->stats.fw_stats = NULL;
 966 }