drivers/net/wireless/ti/wlcore/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 #include <linux/module.h>
  29
  30 #include "wlcore.h"
  31 #include "debug.h"
  32 #include "acx.h"
  33 #include "ps.h"
  34 #include "io.h"
  35 #include "tx.h"
  36 #include "hw_ops.h"
  37
  38 /* ms */
  39 #define WL1271_DEBUGFS_STATS_LIFETIME 1000
  40
  41 /* debugfs macros idea from mac80211 */
  42 int wl1271_format_buffer(char __user *userbuf, size_t count,
  43                          loff_t *ppos, char *fmt, ...)
  44 {
  45         va_list args;
  46         char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
  47         int res;
  48
  49         va_start(args, fmt);
  50         res = vscnprintf(buf, sizeof(buf), fmt, args);
  51         va_end(args);
  52
  53         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
  54 }
  55 EXPORT_SYMBOL_GPL(wl1271_format_buffer);
  56
  57 void wl1271_debugfs_update_stats(struct wl1271 *wl)
  58 {
  59         int ret;
  60
  61         mutex_lock(&wl->mutex);
  62
  63         ret = wl1271_ps_elp_wakeup(wl);
  64         if (ret < 0)
  65                 goto out;
  66
  67         if (wl->state == WL1271_STATE_ON && !wl->plt &&
  68             time_after(jiffies, wl->stats.fw_stats_update +
  69                        msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) {
  70                 wl1271_acx_statistics(wl, wl->stats.fw_stats);
  71                 wl->stats.fw_stats_update = jiffies;
  72         }
  73
  74         wl1271_ps_elp_sleep(wl);
  75
  76 out:
  77         mutex_unlock(&wl->mutex);
  78 }
  79 EXPORT_SYMBOL_GPL(wl1271_debugfs_update_stats);
  80
  81 DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
  82 DEBUGFS_READONLY_FILE(excessive_retries, "%u",
  83                       wl->stats.excessive_retries);
  84
  85 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
  86                                  size_t count, loff_t *ppos)
  87 {
  88         struct wl1271 *wl = file->private_data;
  89         u32 queue_len;
  90         char buf[20];
  91         int res;
  92
  93         queue_len = wl1271_tx_total_queue_count(wl);
  94
  95         res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
  96         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
  97 }
  98
  99 static const struct file_operations tx_queue_len_ops = {
 100         .read = tx_queue_len_read,
 101         .open = simple_open,
 102         .llseek = default_llseek,
 103 };
 104
 105 static void chip_op_handler(struct wl1271 *wl, unsigned long value,
 106                             void *arg)
 107 {
 108         int ret;
 109         int (*chip_op) (struct wl1271 *wl);
 110
 111         if (!arg) {
 112                 wl1271_warning("debugfs chip_op_handler with no callback");
 113                 return;
 114         }
 115
 116         ret = wl1271_ps_elp_wakeup(wl);
 117         if (ret < 0)
 118                 return;
 119
 120         chip_op = arg;
 121         chip_op(wl);
 122
 123         wl1271_ps_elp_sleep(wl);
 124 }
 125
 126
 127 static inline void no_write_handler(struct wl1271 *wl,
 128                                     unsigned long value,
 129                                     unsigned long param)
 130 {
 131 }
 132
 133 #define WL12XX_CONF_DEBUGFS(param, conf_sub_struct,                     \
 134                             min_val, max_val, write_handler_locked,     \
 135                             write_handler_arg)                          \
 136         static ssize_t param##_read(struct file *file,                  \
 137                                       char __user *user_buf,            \
 138                                       size_t count, loff_t *ppos)       \
 139         {                                                               \
 140         struct wl1271 *wl = file->private_data;                         \
 141         return wl1271_format_buffer(user_buf, count,                    \
 142                                     ppos, "%d\n",                       \
 143                                     wl->conf.conf_sub_struct.param);    \
 144         }                                                               \
 145                                                                         \
 146         static ssize_t param##_write(struct file *file,                 \
 147                                      const char __user *user_buf,       \
 148                                      size_t count, loff_t *ppos)        \
 149         {                                                               \
 150         struct wl1271 *wl = file->private_data;                         \
 151         unsigned long value;                                            \
 152         int ret;                                                        \
 153                                                                         \
 154         ret = kstrtoul_from_user(user_buf, count, 10, &value);          \
 155         if (ret < 0) {                                                  \
 156                 wl1271_warning("illegal value for " #param);            \
 157                 return -EINVAL;                                         \
 158         }                                                               \
 159                                                                         \
 160         if (value < min_val || value > max_val) {                       \
 161                 wl1271_warning(#param " is not in valid range");        \
 162                 return -ERANGE;                                         \
 163         }                                                               \
 164                                                                         \
 165         mutex_lock(&wl->mutex);                                         \
 166         wl->conf.conf_sub_struct.param = value;                         \
 167                                                                         \
 168         write_handler_locked(wl, value, write_handler_arg);             \
 169                                                                         \
 170         mutex_unlock(&wl->mutex);                                       \
 171         return count;                                                   \
 172         }                                                               \
 173                                                                         \
 174         static const struct file_operations param##_ops = {             \
 175                 .read = param##_read,                                   \
 176                 .write = param##_write,                                 \
 177                 .open = simple_open,                                    \
 178                 .llseek = default_llseek,                               \
 179         };
 180 static ssize_t gpio_power_read(struct file *file, char __user *user_buf,
 181                           size_t count, loff_t *ppos)
 182 {
 183         struct wl1271 *wl = file->private_data;
 184         bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 185
 186         int res;
 187         char buf[10];
 188
 189         res = scnprintf(buf, sizeof(buf), "%d\n", state);
 190
 191         return simple_read_from_buffer(user_buf, count, ppos, buf, res);
 192 }
 193
 194 static ssize_t gpio_power_write(struct file *file,
 195                            const char __user *user_buf,
 196                            size_t count, loff_t *ppos)
 197 {
 198         struct wl1271 *wl = file->private_data;
 199         unsigned long value;
 200         int ret;
 201
 202         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 203         if (ret < 0) {
 204                 wl1271_warning("illegal value in gpio_power");
 205                 return -EINVAL;
 206         }
 207
 208         mutex_lock(&wl->mutex);
 209
 210         if (value)
 211                 wl1271_power_on(wl);
 212         else
 213                 wl1271_power_off(wl);
 214
 215         mutex_unlock(&wl->mutex);
 216         return count;
 217 }
 218
 219 static const struct file_operations gpio_power_ops = {
 220         .read = gpio_power_read,
 221         .write = gpio_power_write,
 222         .open = simple_open,
 223         .llseek = default_llseek,
 224 };
 225
 226 static ssize_t start_recovery_write(struct file *file,
 227                                     const char __user *user_buf,
 228                                     size_t count, loff_t *ppos)
 229 {
 230         struct wl1271 *wl = file->private_data;
 231
 232         mutex_lock(&wl->mutex);
 233         wl12xx_queue_recovery_work(wl);
 234         mutex_unlock(&wl->mutex);
 235
 236         return count;
 237 }
 238
 239 static const struct file_operations start_recovery_ops = {
 240         .write = start_recovery_write,
 241         .open = simple_open,
 242         .llseek = default_llseek,
 243 };
 244
 245 static ssize_t dynamic_ps_timeout_read(struct file *file, char __user *user_buf,
 246                           size_t count, loff_t *ppos)
 247 {
 248         struct wl1271 *wl = file->private_data;
 249
 250         return wl1271_format_buffer(user_buf, count,
 251                                     ppos, "%d\n",
 252                                     wl->conf.conn.dynamic_ps_timeout);
 253 }
 254
 255 static ssize_t dynamic_ps_timeout_write(struct file *file,
 256                                     const char __user *user_buf,
 257                                     size_t count, loff_t *ppos)
 258 {
 259         struct wl1271 *wl = file->private_data;
 260         struct wl12xx_vif *wlvif;
 261         unsigned long value;
 262         int ret;
 263
 264         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 265         if (ret < 0) {
 266                 wl1271_warning("illegal value in dynamic_ps");
 267                 return -EINVAL;
 268         }
 269
 270         if (value < 1 || value > 65535) {
 271                 wl1271_warning("dyanmic_ps_timeout is not in valid range");
 272                 return -ERANGE;
 273         }
 274
 275         mutex_lock(&wl->mutex);
 276
 277         wl->conf.conn.dynamic_ps_timeout = value;
 278
 279         if (wl->state == WL1271_STATE_OFF)
 280                 goto out;
 281
 282         ret = wl1271_ps_elp_wakeup(wl);
 283         if (ret < 0)
 284                 goto out;
 285
 286         /* In case we're already in PSM, trigger it again to set new timeout
 287          * immediately without waiting for re-association
 288          */
 289
 290         wl12xx_for_each_wlvif_sta(wl, wlvif) {
 291                 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
 292                         wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE);
 293         }
 294
 295         wl1271_ps_elp_sleep(wl);
 296
 297 out:
 298         mutex_unlock(&wl->mutex);
 299         return count;
 300 }
 301
 302 static const struct file_operations dynamic_ps_timeout_ops = {
 303         .read = dynamic_ps_timeout_read,
 304         .write = dynamic_ps_timeout_write,
 305         .open = simple_open,
 306         .llseek = default_llseek,
 307 };
 308
 309 static ssize_t forced_ps_read(struct file *file, char __user *user_buf,
 310                           size_t count, loff_t *ppos)
 311 {
 312         struct wl1271 *wl = file->private_data;
 313
 314         return wl1271_format_buffer(user_buf, count,
 315                                     ppos, "%d\n",
 316                                     wl->conf.conn.forced_ps);
 317 }
 318
 319 static ssize_t forced_ps_write(struct file *file,
 320                                     const char __user *user_buf,
 321                                     size_t count, loff_t *ppos)
 322 {
 323         struct wl1271 *wl = file->private_data;
 324         struct wl12xx_vif *wlvif;
 325         unsigned long value;
 326         int ret, ps_mode;
 327
 328         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 329         if (ret < 0) {
 330                 wl1271_warning("illegal value in forced_ps");
 331                 return -EINVAL;
 332         }
 333
 334         if (value != 1 && value != 0) {
 335                 wl1271_warning("forced_ps should be either 0 or 1");
 336                 return -ERANGE;
 337         }
 338
 339         mutex_lock(&wl->mutex);
 340
 341         if (wl->conf.conn.forced_ps == value)
 342                 goto out;
 343
 344         wl->conf.conn.forced_ps = value;
 345
 346         if (wl->state == WL1271_STATE_OFF)
 347                 goto out;
 348
 349         ret = wl1271_ps_elp_wakeup(wl);
 350         if (ret < 0)
 351                 goto out;
 352
 353         /* In case we're already in PSM, trigger it again to switch mode
 354          * immediately without waiting for re-association
 355          */
 356
 357         ps_mode = value ? STATION_POWER_SAVE_MODE : STATION_AUTO_PS_MODE;
 358
 359         wl12xx_for_each_wlvif_sta(wl, wlvif) {
 360                 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
 361                         wl1271_ps_set_mode(wl, wlvif, ps_mode);
 362         }
 363
 364         wl1271_ps_elp_sleep(wl);
 365
 366 out:
 367         mutex_unlock(&wl->mutex);
 368         return count;
 369 }
 370
 371 static const struct file_operations forced_ps_ops = {
 372         .read = forced_ps_read,
 373         .write = forced_ps_write,
 374         .open = simple_open,
 375         .llseek = default_llseek,
 376 };
 377
 378 static ssize_t split_scan_timeout_read(struct file *file, char __user *user_buf,
 379                           size_t count, loff_t *ppos)
 380 {
 381         struct wl1271 *wl = file->private_data;
 382
 383         return wl1271_format_buffer(user_buf, count,
 384                                     ppos, "%d\n",
 385                                     wl->conf.scan.split_scan_timeout / 1000);
 386 }
 387
 388 static ssize_t split_scan_timeout_write(struct file *file,
 389                                     const char __user *user_buf,
 390                                     size_t count, loff_t *ppos)
 391 {
 392         struct wl1271 *wl = file->private_data;
 393         unsigned long value;
 394         int ret;
 395
 396         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 397         if (ret < 0) {
 398                 wl1271_warning("illegal value in split_scan_timeout");
 399                 return -EINVAL;
 400         }
 401
 402         if (value == 0)
 403                 wl1271_info("split scan will be disabled");
 404
 405         mutex_lock(&wl->mutex);
 406
 407         wl->conf.scan.split_scan_timeout = value * 1000;
 408
 409         mutex_unlock(&wl->mutex);
 410         return count;
 411 }
 412
 413 static const struct file_operations split_scan_timeout_ops = {
 414         .read = split_scan_timeout_read,
 415         .write = split_scan_timeout_write,
 416         .open = simple_open,
 417         .llseek = default_llseek,
 418 };
 419
 420 static ssize_t driver_state_read(struct file *file, char __user *user_buf,
 421                                  size_t count, loff_t *ppos)
 422 {
 423         struct wl1271 *wl = file->private_data;
 424         int res = 0;
 425         ssize_t ret;
 426         char *buf;
 427
 428 #define DRIVER_STATE_BUF_LEN 1024
 429
 430         buf = kmalloc(DRIVER_STATE_BUF_LEN, GFP_KERNEL);
 431         if (!buf)
 432                 return -ENOMEM;
 433
 434         mutex_lock(&wl->mutex);
 435
 436 #define DRIVER_STATE_PRINT(x, fmt)   \
 437         (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\
 438                           #x " = " fmt "\n", wl->x))
 439
 440 #define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld")
 441 #define DRIVER_STATE_PRINT_INT(x)  DRIVER_STATE_PRINT(x, "%d")
 442 #define DRIVER_STATE_PRINT_STR(x)  DRIVER_STATE_PRINT(x, "%s")
 443 #define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx")
 444 #define DRIVER_STATE_PRINT_HEX(x)  DRIVER_STATE_PRINT(x, "0x%x")
 445
 446         DRIVER_STATE_PRINT_INT(tx_blocks_available);
 447         DRIVER_STATE_PRINT_INT(tx_allocated_blocks);
 448         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]);
 449         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]);
 450         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]);
 451         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]);
 452         DRIVER_STATE_PRINT_INT(tx_frames_cnt);
 453         DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]);
 454         DRIVER_STATE_PRINT_INT(tx_queue_count[0]);
 455         DRIVER_STATE_PRINT_INT(tx_queue_count[1]);
 456         DRIVER_STATE_PRINT_INT(tx_queue_count[2]);
 457         DRIVER_STATE_PRINT_INT(tx_queue_count[3]);
 458         DRIVER_STATE_PRINT_INT(tx_packets_count);
 459         DRIVER_STATE_PRINT_INT(tx_results_count);
 460         DRIVER_STATE_PRINT_LHEX(flags);
 461         DRIVER_STATE_PRINT_INT(tx_blocks_freed);
 462         DRIVER_STATE_PRINT_INT(rx_counter);
 463         DRIVER_STATE_PRINT_INT(state);
 464         DRIVER_STATE_PRINT_INT(channel);
 465         DRIVER_STATE_PRINT_INT(band);
 466         DRIVER_STATE_PRINT_INT(power_level);
 467         DRIVER_STATE_PRINT_INT(sg_enabled);
 468         DRIVER_STATE_PRINT_INT(enable_11a);
 469         DRIVER_STATE_PRINT_INT(noise);
 470         DRIVER_STATE_PRINT_HEX(ap_fw_ps_map);
 471         DRIVER_STATE_PRINT_LHEX(ap_ps_map);
 472         DRIVER_STATE_PRINT_HEX(quirks);
 473         DRIVER_STATE_PRINT_HEX(irq);
 474         /* TODO: ref_clock and tcxo_clock were moved to wl12xx priv */
 475         DRIVER_STATE_PRINT_HEX(hw_pg_ver);
 476         DRIVER_STATE_PRINT_HEX(platform_quirks);
 477         DRIVER_STATE_PRINT_HEX(chip.id);
 478         DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
 479         DRIVER_STATE_PRINT_INT(sched_scanning);
 480
 481 #undef DRIVER_STATE_PRINT_INT
 482 #undef DRIVER_STATE_PRINT_LONG
 483 #undef DRIVER_STATE_PRINT_HEX
 484 #undef DRIVER_STATE_PRINT_LHEX
 485 #undef DRIVER_STATE_PRINT_STR
 486 #undef DRIVER_STATE_PRINT
 487 #undef DRIVER_STATE_BUF_LEN
 488
 489         mutex_unlock(&wl->mutex);
 490
 491         ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
 492         kfree(buf);
 493         return ret;
 494 }
 495
 496 static const struct file_operations driver_state_ops = {
 497         .read = driver_state_read,
 498         .open = simple_open,
 499         .llseek = default_llseek,
 500 };
 501
 502 static ssize_t vifs_state_read(struct file *file, char __user *user_buf,
 503                                  size_t count, loff_t *ppos)
 504 {
 505         struct wl1271 *wl = file->private_data;
 506         struct wl12xx_vif *wlvif;
 507         int ret, res = 0;
 508         const int buf_size = 4096;
 509         char *buf;
 510         char tmp_buf[64];
 511
 512         buf = kzalloc(buf_size, GFP_KERNEL);
 513         if (!buf)
 514                 return -ENOMEM;
 515
 516         mutex_lock(&wl->mutex);
 517
 518 #define VIF_STATE_PRINT(x, fmt)                         \
 519         (res += scnprintf(buf + res, buf_size - res,    \
 520                           #x " = " fmt "\n", wlvif->x))
 521
 522 #define VIF_STATE_PRINT_LONG(x)  VIF_STATE_PRINT(x, "%ld")
 523 #define VIF_STATE_PRINT_INT(x)   VIF_STATE_PRINT(x, "%d")
 524 #define VIF_STATE_PRINT_STR(x)   VIF_STATE_PRINT(x, "%s")
 525 #define VIF_STATE_PRINT_LHEX(x)  VIF_STATE_PRINT(x, "0x%lx")
 526 #define VIF_STATE_PRINT_LLHEX(x) VIF_STATE_PRINT(x, "0x%llx")
 527 #define VIF_STATE_PRINT_HEX(x)   VIF_STATE_PRINT(x, "0x%x")
 528
 529 #define VIF_STATE_PRINT_NSTR(x, len)                            \
 530         do {                                                    \
 531                 memset(tmp_buf, 0, sizeof(tmp_buf));            \
 532                 memcpy(tmp_buf, wlvif->x,                       \
 533                        min_t(u8, len, sizeof(tmp_buf) - 1));    \
 534                 res += scnprintf(buf + res, buf_size - res,     \
 535                                  #x " = %s\n", tmp_buf);        \
 536         } while (0)
 537
 538         wl12xx_for_each_wlvif(wl, wlvif) {
 539                 VIF_STATE_PRINT_INT(role_id);
 540                 VIF_STATE_PRINT_INT(bss_type);
 541                 VIF_STATE_PRINT_LHEX(flags);
 542                 VIF_STATE_PRINT_INT(p2p);
 543                 VIF_STATE_PRINT_INT(dev_role_id);
 544                 VIF_STATE_PRINT_INT(dev_hlid);
 545
 546                 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
 547                     wlvif->bss_type == BSS_TYPE_IBSS) {
 548                         VIF_STATE_PRINT_INT(sta.hlid);
 549                         VIF_STATE_PRINT_INT(sta.ba_rx_bitmap);
 550                         VIF_STATE_PRINT_INT(sta.basic_rate_idx);
 551                         VIF_STATE_PRINT_INT(sta.ap_rate_idx);
 552                         VIF_STATE_PRINT_INT(sta.p2p_rate_idx);
 553                         VIF_STATE_PRINT_INT(sta.qos);
 554                 } else {
 555                         VIF_STATE_PRINT_INT(ap.global_hlid);
 556                         VIF_STATE_PRINT_INT(ap.bcast_hlid);
 557                         VIF_STATE_PRINT_LHEX(ap.sta_hlid_map[0]);
 558                         VIF_STATE_PRINT_INT(ap.mgmt_rate_idx);
 559                         VIF_STATE_PRINT_INT(ap.bcast_rate_idx);
 560                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[0]);
 561                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[1]);
 562                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[2]);
 563                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[3]);
 564                 }
 565                 VIF_STATE_PRINT_INT(last_tx_hlid);
 566                 VIF_STATE_PRINT_LHEX(links_map[0]);
 567                 VIF_STATE_PRINT_NSTR(ssid, wlvif->ssid_len);
 568                 VIF_STATE_PRINT_INT(band);
 569                 VIF_STATE_PRINT_INT(channel);
 570                 VIF_STATE_PRINT_HEX(bitrate_masks[0]);
 571                 VIF_STATE_PRINT_HEX(bitrate_masks[1]);
 572                 VIF_STATE_PRINT_HEX(basic_rate_set);
 573                 VIF_STATE_PRINT_HEX(basic_rate);
 574                 VIF_STATE_PRINT_HEX(rate_set);
 575                 VIF_STATE_PRINT_INT(beacon_int);
 576                 VIF_STATE_PRINT_INT(default_key);
 577                 VIF_STATE_PRINT_INT(aid);
 578                 VIF_STATE_PRINT_INT(session_counter);
 579                 VIF_STATE_PRINT_INT(psm_entry_retry);
 580                 VIF_STATE_PRINT_INT(power_level);
 581                 VIF_STATE_PRINT_INT(rssi_thold);
 582                 VIF_STATE_PRINT_INT(last_rssi_event);
 583                 VIF_STATE_PRINT_INT(ba_support);
 584                 VIF_STATE_PRINT_INT(ba_allowed);
 585                 VIF_STATE_PRINT_LLHEX(tx_security_seq);
 586                 VIF_STATE_PRINT_INT(tx_security_last_seq_lsb);
 587         }
 588
 589 #undef VIF_STATE_PRINT_INT
 590 #undef VIF_STATE_PRINT_LONG
 591 #undef VIF_STATE_PRINT_HEX
 592 #undef VIF_STATE_PRINT_LHEX
 593 #undef VIF_STATE_PRINT_LLHEX
 594 #undef VIF_STATE_PRINT_STR
 595 #undef VIF_STATE_PRINT_NSTR
 596 #undef VIF_STATE_PRINT
 597
 598         mutex_unlock(&wl->mutex);
 599
 600         ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
 601         kfree(buf);
 602         return ret;
 603 }
 604
 605 static const struct file_operations vifs_state_ops = {
 606         .read = vifs_state_read,
 607         .open = simple_open,
 608         .llseek = default_llseek,
 609 };
 610
 611 static ssize_t dtim_interval_read(struct file *file, char __user *user_buf,
 612                                   size_t count, loff_t *ppos)
 613 {
 614         struct wl1271 *wl = file->private_data;
 615         u8 value;
 616
 617         if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
 618             wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
 619                 value = wl->conf.conn.listen_interval;
 620         else
 621                 value = 0;
 622
 623         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
 624 }
 625
 626 static ssize_t dtim_interval_write(struct file *file,
 627                                    const char __user *user_buf,
 628                                    size_t count, loff_t *ppos)
 629 {
 630         struct wl1271 *wl = file->private_data;
 631         unsigned long value;
 632         int ret;
 633
 634         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 635         if (ret < 0) {
 636                 wl1271_warning("illegal value for dtim_interval");
 637                 return -EINVAL;
 638         }
 639
 640         if (value < 1 || value > 10) {
 641                 wl1271_warning("dtim value is not in valid range");
 642                 return -ERANGE;
 643         }
 644
 645         mutex_lock(&wl->mutex);
 646
 647         wl->conf.conn.listen_interval = value;
 648         /* for some reason there are different event types for 1 and >1 */
 649         if (value == 1)
 650                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
 651         else
 652                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
 653
 654         /*
 655          * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
 656          * take effect on the next time we enter psm.
 657          */
 658         mutex_unlock(&wl->mutex);
 659         return count;
 660 }
 661
 662 static const struct file_operations dtim_interval_ops = {
 663         .read = dtim_interval_read,
 664         .write = dtim_interval_write,
 665         .open = simple_open,
 666         .llseek = default_llseek,
 667 };
 668
 669
 670
 671 static ssize_t suspend_dtim_interval_read(struct file *file,
 672                                           char __user *user_buf,
 673                                           size_t count, loff_t *ppos)
 674 {
 675         struct wl1271 *wl = file->private_data;
 676         u8 value;
 677
 678         if (wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
 679             wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
 680                 value = wl->conf.conn.suspend_listen_interval;
 681         else
 682                 value = 0;
 683
 684         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
 685 }
 686
 687 static ssize_t suspend_dtim_interval_write(struct file *file,
 688                                            const char __user *user_buf,
 689                                            size_t count, loff_t *ppos)
 690 {
 691         struct wl1271 *wl = file->private_data;
 692         unsigned long value;
 693         int ret;
 694
 695         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 696         if (ret < 0) {
 697                 wl1271_warning("illegal value for suspend_dtim_interval");
 698                 return -EINVAL;
 699         }
 700
 701         if (value < 1 || value > 10) {
 702                 wl1271_warning("suspend_dtim value is not in valid range");
 703                 return -ERANGE;
 704         }
 705
 706         mutex_lock(&wl->mutex);
 707
 708         wl->conf.conn.suspend_listen_interval = value;
 709         /* for some reason there are different event types for 1 and >1 */
 710         if (value == 1)
 711                 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
 712         else
 713                 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
 714
 715         mutex_unlock(&wl->mutex);
 716         return count;
 717 }
 718
 719
 720 static const struct file_operations suspend_dtim_interval_ops = {
 721         .read = suspend_dtim_interval_read,
 722         .write = suspend_dtim_interval_write,
 723         .open = simple_open,
 724         .llseek = default_llseek,
 725 };
 726
 727 static ssize_t beacon_interval_read(struct file *file, char __user *user_buf,
 728                                     size_t count, loff_t *ppos)
 729 {
 730         struct wl1271 *wl = file->private_data;
 731         u8 value;
 732
 733         if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON ||
 734             wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS)
 735                 value = wl->conf.conn.listen_interval;
 736         else
 737                 value = 0;
 738
 739         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
 740 }
 741
 742 static ssize_t beacon_interval_write(struct file *file,
 743                                      const char __user *user_buf,
 744                                      size_t count, loff_t *ppos)
 745 {
 746         struct wl1271 *wl = file->private_data;
 747         unsigned long value;
 748         int ret;
 749
 750         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 751         if (ret < 0) {
 752                 wl1271_warning("illegal value for beacon_interval");
 753                 return -EINVAL;
 754         }
 755
 756         if (value < 1 || value > 255) {
 757                 wl1271_warning("beacon interval value is not in valid range");
 758                 return -ERANGE;
 759         }
 760
 761         mutex_lock(&wl->mutex);
 762
 763         wl->conf.conn.listen_interval = value;
 764         /* for some reason there are different event types for 1 and >1 */
 765         if (value == 1)
 766                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON;
 767         else
 768                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS;
 769
 770         /*
 771          * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
 772          * take effect on the next time we enter psm.
 773          */
 774         mutex_unlock(&wl->mutex);
 775         return count;
 776 }
 777
 778 static const struct file_operations beacon_interval_ops = {
 779         .read = beacon_interval_read,
 780         .write = beacon_interval_write,
 781         .open = simple_open,
 782         .llseek = default_llseek,
 783 };
 784
 785 static ssize_t rx_streaming_interval_write(struct file *file,
 786                            const char __user *user_buf,
 787                            size_t count, loff_t *ppos)
 788 {
 789         struct wl1271 *wl = file->private_data;
 790         struct wl12xx_vif *wlvif;
 791         unsigned long value;
 792         int ret;
 793
 794         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 795         if (ret < 0) {
 796                 wl1271_warning("illegal value in rx_streaming_interval!");
 797                 return -EINVAL;
 798         }
 799
 800         /* valid values: 0, 10-100 */
 801         if (value && (value < 10 || value > 100)) {
 802                 wl1271_warning("value is not in range!");
 803                 return -ERANGE;
 804         }
 805
 806         mutex_lock(&wl->mutex);
 807
 808         wl->conf.rx_streaming.interval = value;
 809
 810         ret = wl1271_ps_elp_wakeup(wl);
 811         if (ret < 0)
 812                 goto out;
 813
 814         wl12xx_for_each_wlvif_sta(wl, wlvif) {
 815                 wl1271_recalc_rx_streaming(wl, wlvif);
 816         }
 817
 818         wl1271_ps_elp_sleep(wl);
 819 out:
 820         mutex_unlock(&wl->mutex);
 821         return count;
 822 }
 823
 824 static ssize_t rx_streaming_interval_read(struct file *file,
 825                             char __user *userbuf,
 826                             size_t count, loff_t *ppos)
 827 {
 828         struct wl1271 *wl = file->private_data;
 829         return wl1271_format_buffer(userbuf, count, ppos,
 830                                     "%d\n", wl->conf.rx_streaming.interval);
 831 }
 832
 833 static const struct file_operations rx_streaming_interval_ops = {
 834         .read = rx_streaming_interval_read,
 835         .write = rx_streaming_interval_write,
 836         .open = simple_open,
 837         .llseek = default_llseek,
 838 };
 839
 840 static ssize_t rx_streaming_always_write(struct file *file,
 841                            const char __user *user_buf,
 842                            size_t count, loff_t *ppos)
 843 {
 844         struct wl1271 *wl = file->private_data;
 845         struct wl12xx_vif *wlvif;
 846         unsigned long value;
 847         int ret;
 848
 849         ret = kstrtoul_from_user(user_buf, count, 10, &value);
 850         if (ret < 0) {
 851                 wl1271_warning("illegal value in rx_streaming_write!");
 852                 return -EINVAL;
 853         }
 854
 855         /* valid values: 0, 10-100 */
 856         if (!(value == 0 || value == 1)) {
 857                 wl1271_warning("value is not in valid!");
 858                 return -EINVAL;
 859         }
 860
 861         mutex_lock(&wl->mutex);
 862
 863         wl->conf.rx_streaming.always = value;
 864
 865         ret = wl1271_ps_elp_wakeup(wl);
 866         if (ret < 0)
 867                 goto out;
 868
 869         wl12xx_for_each_wlvif_sta(wl, wlvif) {
 870                 wl1271_recalc_rx_streaming(wl, wlvif);
 871         }
 872
 873         wl1271_ps_elp_sleep(wl);
 874 out:
 875         mutex_unlock(&wl->mutex);
 876         return count;
 877 }
 878
 879 static ssize_t rx_streaming_always_read(struct file *file,
 880                             char __user *userbuf,
 881                             size_t count, loff_t *ppos)
 882 {
 883         struct wl1271 *wl = file->private_data;
 884         return wl1271_format_buffer(userbuf, count, ppos,
 885                                     "%d\n", wl->conf.rx_streaming.always);
 886 }
 887
 888 static const struct file_operations rx_streaming_always_ops = {
 889         .read = rx_streaming_always_read,
 890         .write = rx_streaming_always_write,
 891         .open = simple_open,
 892         .llseek = default_llseek,
 893 };
 894
 895 static ssize_t beacon_filtering_write(struct file *file,
 896                                       const char __user *user_buf,
 897                                       size_t count, loff_t *ppos)
 898 {
 899         struct wl1271 *wl = file->private_data;
 900         struct wl12xx_vif *wlvif;
 901         char buf[10];
 902         size_t len;
 903         unsigned long value;
 904         int ret;
 905
 906         len = min(count, sizeof(buf) - 1);
 907         if (copy_from_user(buf, user_buf, len))
 908                 return -EFAULT;
 909         buf[len] = '\0';
 910
 911         ret = kstrtoul(buf, 0, &value);
 912         if (ret < 0) {
 913                 wl1271_warning("illegal value for beacon_filtering!");
 914                 return -EINVAL;
 915         }
 916
 917         mutex_lock(&wl->mutex);
 918
 919         ret = wl1271_ps_elp_wakeup(wl);
 920         if (ret < 0)
 921                 goto out;
 922
 923         wl12xx_for_each_wlvif(wl, wlvif) {
 924                 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value);
 925         }
 926
 927         wl1271_ps_elp_sleep(wl);
 928 out:
 929         mutex_unlock(&wl->mutex);
 930         return count;
 931 }
 932
 933 static const struct file_operations beacon_filtering_ops = {
 934         .write = beacon_filtering_write,
 935         .open = simple_open,
 936         .llseek = default_llseek,
 937 };
 938
 939 static int wl1271_debugfs_add_files(struct wl1271 *wl,
 940                                     struct dentry *rootdir)
 941 {
 942         int ret = 0;
 943         struct dentry *entry, *streaming;
 944
 945         DEBUGFS_ADD(tx_queue_len, rootdir);
 946         DEBUGFS_ADD(retry_count, rootdir);
 947         DEBUGFS_ADD(excessive_retries, rootdir);
 948
 949         DEBUGFS_ADD(gpio_power, rootdir);
 950         DEBUGFS_ADD(start_recovery, rootdir);
 951         DEBUGFS_ADD(driver_state, rootdir);
 952         DEBUGFS_ADD(vifs_state, rootdir);
 953         DEBUGFS_ADD(dtim_interval, rootdir);
 954         DEBUGFS_ADD(suspend_dtim_interval, rootdir);
 955         DEBUGFS_ADD(beacon_interval, rootdir);
 956         DEBUGFS_ADD(beacon_filtering, rootdir);
 957         DEBUGFS_ADD(dynamic_ps_timeout, rootdir);
 958         DEBUGFS_ADD(forced_ps, rootdir);
 959         DEBUGFS_ADD(split_scan_timeout, rootdir);
 960
 961         streaming = debugfs_create_dir("rx_streaming", rootdir);
 962         if (!streaming || IS_ERR(streaming))
 963                 goto err;
 964
 965         DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming);
 966         DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming);
 967
 968
 969         return 0;
 970
 971 err:
 972         if (IS_ERR(entry))
 973                 ret = PTR_ERR(entry);
 974         else
 975                 ret = -ENOMEM;
 976
 977         return ret;
 978 }
 979
 980 void wl1271_debugfs_reset(struct wl1271 *wl)
 981 {
 982         if (!wl->stats.fw_stats)
 983                 return;
 984
 985         memset(wl->stats.fw_stats, 0, wl->stats.fw_stats_len);
 986         wl->stats.retry_count = 0;
 987         wl->stats.excessive_retries = 0;
 988 }
 989
 990 int wl1271_debugfs_init(struct wl1271 *wl)
 991 {
 992         int ret;
 993         struct dentry *rootdir;
 994
 995         rootdir = debugfs_create_dir(KBUILD_MODNAME,
 996                                      wl->hw->wiphy->debugfsdir);
 997
 998         if (IS_ERR(rootdir)) {
 999                 ret = PTR_ERR(rootdir);
1000                 goto out;
1001         }
1002
1003         wl->stats.fw_stats = kzalloc(wl->stats.fw_stats_len, GFP_KERNEL);
1004         if (!wl->stats.fw_stats) {
1005                 ret = -ENOMEM;
1006                 goto out_remove;
1007         }
1008
1009         wl->stats.fw_stats_update = jiffies;
1010
1011         ret = wl1271_debugfs_add_files(wl, rootdir);
1012         if (ret < 0)
1013                 goto out_exit;
1014
1015         ret = wlcore_debugfs_init(wl, rootdir);
1016         if (ret < 0)
1017                 goto out_exit;
1018
1019         goto out;
1020
1021 out_exit:
1022         wl1271_debugfs_exit(wl);
1023
1024 out_remove:
1025         debugfs_remove_recursive(rootdir);
1026
1027 out:
1028         return ret;
1029 }
1030
1031 void wl1271_debugfs_exit(struct wl1271 *wl)
1032 {
1033         kfree(wl->stats.fw_stats);
1034         wl->stats.fw_stats = NULL;
1035 }