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         char buf[10];
 269         size_t len;
 270         unsigned long value;
 271         int ret;
 272
 273         len = min(count, sizeof(buf) - 1);
 274         if (copy_from_user(buf, user_buf, len)) {
 275                 return -EFAULT;
 276         }
 277         buf[len] = '\0';
 278
 279         ret = kstrtoul(buf, 0, &value);
 280         if (ret < 0) {
 281                 wl1271_warning("illegal value in gpio_power");
 282                 return -EINVAL;
 283         }
 284
 285         mutex_lock(&wl->mutex);
 286
 287         if (value)
 288                 wl1271_power_on(wl);
 289         else
 290                 wl1271_power_off(wl);
 291
 292         mutex_unlock(&wl->mutex);
 293         return count;
 294 }
 295
 296 static const struct file_operations gpio_power_ops = {
 297         .read = gpio_power_read,
 298         .write = gpio_power_write,
 299         .open = wl1271_open_file_generic,
 300         .llseek = default_llseek,
 301 };
 302
 303 static ssize_t start_recovery_write(struct file *file,
 304                                     const char __user *user_buf,
 305                                     size_t count, loff_t *ppos)
 306 {
 307         struct wl1271 *wl = file->private_data;
 308
 309         mutex_lock(&wl->mutex);
 310         wl12xx_queue_recovery_work(wl);
 311         mutex_unlock(&wl->mutex);
 312
 313         return count;
 314 }
 315
 316 static const struct file_operations start_recovery_ops = {
 317         .write = start_recovery_write,
 318         .open = wl1271_open_file_generic,
 319         .llseek = default_llseek,
 320 };
 321
 322 static ssize_t driver_state_read(struct file *file, char __user *user_buf,
 323                                  size_t count, loff_t *ppos)
 324 {
 325         struct wl1271 *wl = file->private_data;
 326         int res = 0;
 327         char buf[1024];
 328
 329         mutex_lock(&wl->mutex);
 330
 331 #define DRIVER_STATE_PRINT(x, fmt)   \
 332         (res += scnprintf(buf + res, sizeof(buf) - 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[0]);
 343         DRIVER_STATE_PRINT_INT(tx_allocated_blocks[1]);
 344         DRIVER_STATE_PRINT_INT(tx_allocated_blocks[2]);
 345         DRIVER_STATE_PRINT_INT(tx_allocated_blocks[3]);
 346         DRIVER_STATE_PRINT_INT(tx_frames_cnt);
 347         DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]);
 348         DRIVER_STATE_PRINT_INT(tx_queue_count[0]);
 349         DRIVER_STATE_PRINT_INT(tx_queue_count[1]);
 350         DRIVER_STATE_PRINT_INT(tx_queue_count[2]);
 351         DRIVER_STATE_PRINT_INT(tx_queue_count[3]);
 352         DRIVER_STATE_PRINT_INT(tx_packets_count);
 353         DRIVER_STATE_PRINT_INT(tx_results_count);
 354         DRIVER_STATE_PRINT_LHEX(flags);
 355         DRIVER_STATE_PRINT_INT(tx_blocks_freed[0]);
 356         DRIVER_STATE_PRINT_INT(tx_blocks_freed[1]);
 357         DRIVER_STATE_PRINT_INT(tx_blocks_freed[2]);
 358         DRIVER_STATE_PRINT_INT(tx_blocks_freed[3]);
 359         DRIVER_STATE_PRINT_INT(tx_security_last_seq_lsb);
 360         DRIVER_STATE_PRINT_INT(rx_counter);
 361         DRIVER_STATE_PRINT_INT(session_counter);
 362         DRIVER_STATE_PRINT_INT(state);
 363         DRIVER_STATE_PRINT_INT(bss_type);
 364         DRIVER_STATE_PRINT_INT(channel);
 365         DRIVER_STATE_PRINT_HEX(rate_set);
 366         DRIVER_STATE_PRINT_HEX(basic_rate_set);
 367         DRIVER_STATE_PRINT_HEX(basic_rate);
 368         DRIVER_STATE_PRINT_INT(band);
 369         DRIVER_STATE_PRINT_INT(beacon_int);
 370         DRIVER_STATE_PRINT_INT(psm_entry_retry);
 371         DRIVER_STATE_PRINT_INT(ps_poll_failures);
 372         DRIVER_STATE_PRINT_HEX(filters);
 373         DRIVER_STATE_PRINT_HEX(rx_config);
 374         DRIVER_STATE_PRINT_HEX(rx_filter);
 375         DRIVER_STATE_PRINT_INT(power_level);
 376         DRIVER_STATE_PRINT_INT(rssi_thold);
 377         DRIVER_STATE_PRINT_INT(last_rssi_event);
 378         DRIVER_STATE_PRINT_INT(sg_enabled);
 379         DRIVER_STATE_PRINT_INT(enable_11a);
 380         DRIVER_STATE_PRINT_INT(noise);
 381         DRIVER_STATE_PRINT_LHEX(ap_hlid_map[0]);
 382         DRIVER_STATE_PRINT_INT(last_tx_hlid);
 383         DRIVER_STATE_PRINT_INT(ba_support);
 384         DRIVER_STATE_PRINT_HEX(ba_rx_bitmap);
 385         DRIVER_STATE_PRINT_HEX(ap_fw_ps_map);
 386         DRIVER_STATE_PRINT_LHEX(ap_ps_map);
 387         DRIVER_STATE_PRINT_HEX(quirks);
 388         DRIVER_STATE_PRINT_HEX(irq);
 389         DRIVER_STATE_PRINT_HEX(ref_clock);
 390         DRIVER_STATE_PRINT_HEX(tcxo_clock);
 391         DRIVER_STATE_PRINT_HEX(hw_pg_ver);
 392         DRIVER_STATE_PRINT_HEX(platform_quirks);
 393         DRIVER_STATE_PRINT_HEX(chip.id);
 394         DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
 395         DRIVER_STATE_PRINT_INT(sched_scanning);
 396
 397 #undef DRIVER_STATE_PRINT_INT
 398 #undef DRIVER_STATE_PRINT_LONG
 399 #undef DRIVER_STATE_PRINT_HEX
 400 #undef DRIVER_STATE_PRINT_LHEX
 401 #undef DRIVER_STATE_PRINT_STR
 402 #undef DRIVER_STATE_PRINT
 403
 404         mutex_unlock(&wl->mutex);
 405
 406         return simple_read_from_buffer(user_buf, count, ppos, buf, res);
 407 }
 408
 409 static const struct file_operations driver_state_ops = {
 410         .read = driver_state_read,
 411         .open = wl1271_open_file_generic,
 412         .llseek = default_llseek,
 413 };
 414
 415 static ssize_t dtim_interval_read(struct file *file, char __user *user_buf,
 416                                   size_t count, loff_t *ppos)
 417 {
 418         struct wl1271 *wl = file->private_data;
 419         u8 value;
 420
 421         if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
 422             wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
 423                 value = wl->conf.conn.listen_interval;
 424         else
 425                 value = 0;
 426
 427         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
 428 }
 429
 430 static ssize_t dtim_interval_write(struct file *file,
 431                                    const char __user *user_buf,
 432                                    size_t count, loff_t *ppos)
 433 {
 434         struct wl1271 *wl = file->private_data;
 435         char buf[10];
 436         size_t len;
 437         unsigned long value;
 438         int ret;
 439
 440         len = min(count, sizeof(buf) - 1);
 441         if (copy_from_user(buf, user_buf, len))
 442                 return -EFAULT;
 443         buf[len] = '\0';
 444
 445         ret = kstrtoul(buf, 0, &value);
 446         if (ret < 0) {
 447                 wl1271_warning("illegal value for dtim_interval");
 448                 return -EINVAL;
 449         }
 450
 451         if (value < 1 || value > 10) {
 452                 wl1271_warning("dtim value is not in valid range");
 453                 return -ERANGE;
 454         }
 455
 456         mutex_lock(&wl->mutex);
 457
 458         wl->conf.conn.listen_interval = value;
 459         /* for some reason there are different event types for 1 and >1 */
 460         if (value == 1)
 461                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
 462         else
 463                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
 464
 465         /*
 466          * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
 467          * take effect on the next time we enter psm.
 468          */
 469         mutex_unlock(&wl->mutex);
 470         return count;
 471 }
 472
 473 static const struct file_operations dtim_interval_ops = {
 474         .read = dtim_interval_read,
 475         .write = dtim_interval_write,
 476         .open = wl1271_open_file_generic,
 477         .llseek = default_llseek,
 478 };
 479
 480 static ssize_t beacon_interval_read(struct file *file, char __user *user_buf,
 481                                     size_t count, loff_t *ppos)
 482 {
 483         struct wl1271 *wl = file->private_data;
 484         u8 value;
 485
 486         if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON ||
 487             wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS)
 488                 value = wl->conf.conn.listen_interval;
 489         else
 490                 value = 0;
 491
 492         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
 493 }
 494
 495 static ssize_t beacon_interval_write(struct file *file,
 496                                      const char __user *user_buf,
 497                                      size_t count, loff_t *ppos)
 498 {
 499         struct wl1271 *wl = file->private_data;
 500         char buf[10];
 501         size_t len;
 502         unsigned long value;
 503         int ret;
 504
 505         len = min(count, sizeof(buf) - 1);
 506         if (copy_from_user(buf, user_buf, len))
 507                 return -EFAULT;
 508         buf[len] = '\0';
 509
 510         ret = kstrtoul(buf, 0, &value);
 511         if (ret < 0) {
 512                 wl1271_warning("illegal value for beacon_interval");
 513                 return -EINVAL;
 514         }
 515
 516         if (value < 1 || value > 255) {
 517                 wl1271_warning("beacon interval value is not in valid range");
 518                 return -ERANGE;
 519         }
 520
 521         mutex_lock(&wl->mutex);
 522
 523         wl->conf.conn.listen_interval = value;
 524         /* for some reason there are different event types for 1 and >1 */
 525         if (value == 1)
 526                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON;
 527         else
 528                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS;
 529
 530         /*
 531          * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
 532          * take effect on the next time we enter psm.
 533          */
 534         mutex_unlock(&wl->mutex);
 535         return count;
 536 }
 537
 538 static const struct file_operations beacon_interval_ops = {
 539         .read = beacon_interval_read,
 540         .write = beacon_interval_write,
 541         .open = wl1271_open_file_generic,
 542         .llseek = default_llseek,
 543 };
 544
 545 static ssize_t rx_streaming_interval_write(struct file *file,
 546                            const char __user *user_buf,
 547                            size_t count, loff_t *ppos)
 548 {
 549         struct wl1271 *wl = file->private_data;
 550         char buf[10];
 551         size_t len;
 552         unsigned long value;
 553         int ret;
 554
 555         len = min(count, sizeof(buf) - 1);
 556         if (copy_from_user(buf, user_buf, len))
 557                 return -EFAULT;
 558         buf[len] = '\0';
 559
 560         ret = kstrtoul(buf, 0, &value);
 561         if (ret < 0) {
 562                 wl1271_warning("illegal value in rx_streaming_interval!");
 563                 return -EINVAL;
 564         }
 565
 566         /* valid values: 0, 10-100 */
 567         if (value && (value < 10 || value > 100)) {
 568                 wl1271_warning("value is not in range!");
 569                 return -ERANGE;
 570         }
 571
 572         mutex_lock(&wl->mutex);
 573
 574         wl->conf.rx_streaming.interval = value;
 575
 576         ret = wl1271_ps_elp_wakeup(wl);
 577         if (ret < 0)
 578                 goto out;
 579
 580         wl1271_recalc_rx_streaming(wl);
 581
 582         wl1271_ps_elp_sleep(wl);
 583 out:
 584         mutex_unlock(&wl->mutex);
 585         return count;
 586 }
 587
 588 static ssize_t rx_streaming_interval_read(struct file *file,
 589                             char __user *userbuf,
 590                             size_t count, loff_t *ppos)
 591 {
 592         struct wl1271 *wl = file->private_data;
 593         return wl1271_format_buffer(userbuf, count, ppos,
 594                                     "%d\n", wl->conf.rx_streaming.interval);
 595 }
 596
 597 static const struct file_operations rx_streaming_interval_ops = {
 598         .read = rx_streaming_interval_read,
 599         .write = rx_streaming_interval_write,
 600         .open = wl1271_open_file_generic,
 601         .llseek = default_llseek,
 602 };
 603
 604 static ssize_t rx_streaming_always_write(struct file *file,
 605                            const char __user *user_buf,
 606                            size_t count, loff_t *ppos)
 607 {
 608         struct wl1271 *wl = file->private_data;
 609         char buf[10];
 610         size_t len;
 611         unsigned long value;
 612         int ret;
 613
 614         len = min(count, sizeof(buf) - 1);
 615         if (copy_from_user(buf, user_buf, len))
 616                 return -EFAULT;
 617         buf[len] = '\0';
 618
 619         ret = kstrtoul(buf, 0, &value);
 620         if (ret < 0) {
 621                 wl1271_warning("illegal value in rx_streaming_write!");
 622                 return -EINVAL;
 623         }
 624
 625         /* valid values: 0, 10-100 */
 626         if (!(value == 0 || value == 1)) {
 627                 wl1271_warning("value is not in valid!");
 628                 return -EINVAL;
 629         }
 630
 631         mutex_lock(&wl->mutex);
 632
 633         wl->conf.rx_streaming.always = value;
 634
 635         ret = wl1271_ps_elp_wakeup(wl);
 636         if (ret < 0)
 637                 goto out;
 638
 639         wl1271_recalc_rx_streaming(wl);
 640
 641         wl1271_ps_elp_sleep(wl);
 642 out:
 643         mutex_unlock(&wl->mutex);
 644         return count;
 645 }
 646
 647 static ssize_t rx_streaming_always_read(struct file *file,
 648                             char __user *userbuf,
 649                             size_t count, loff_t *ppos)
 650 {
 651         struct wl1271 *wl = file->private_data;
 652         return wl1271_format_buffer(userbuf, count, ppos,
 653                                     "%d\n", wl->conf.rx_streaming.always);
 654 }
 655
 656 static const struct file_operations rx_streaming_always_ops = {
 657         .read = rx_streaming_always_read,
 658         .write = rx_streaming_always_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
 776         streaming = debugfs_create_dir("rx_streaming", rootdir);
 777         if (!streaming || IS_ERR(streaming))
 778                 goto err;
 779
 780         DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming);
 781         DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming);
 782
 783
 784         return 0;
 785
 786 err:
 787         if (IS_ERR(entry))
 788                 ret = PTR_ERR(entry);
 789         else
 790                 ret = -ENOMEM;
 791
 792         return ret;
 793 }
 794
 795 void wl1271_debugfs_reset(struct wl1271 *wl)
 796 {
 797         if (!wl->stats.fw_stats)
 798                 return;
 799
 800         memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
 801         wl->stats.retry_count = 0;
 802         wl->stats.excessive_retries = 0;
 803 }
 804
 805 int wl1271_debugfs_init(struct wl1271 *wl)
 806 {
 807         int ret;
 808         struct dentry *rootdir;
 809
 810         rootdir = debugfs_create_dir(KBUILD_MODNAME,
 811                                      wl->hw->wiphy->debugfsdir);
 812
 813         if (IS_ERR(rootdir)) {
 814                 ret = PTR_ERR(rootdir);
 815                 goto err;
 816         }
 817
 818         wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats),
 819                                       GFP_KERNEL);
 820
 821         if (!wl->stats.fw_stats) {
 822                 ret = -ENOMEM;
 823                 goto err_fw;
 824         }
 825
 826         wl->stats.fw_stats_update = jiffies;
 827
 828         ret = wl1271_debugfs_add_files(wl, rootdir);
 829
 830         if (ret < 0)
 831                 goto err_file;
 832
 833         return 0;
 834
 835 err_file:
 836         kfree(wl->stats.fw_stats);
 837         wl->stats.fw_stats = NULL;
 838
 839 err_fw:
 840         debugfs_remove_recursive(rootdir);
 841
 842 err:
 843         return ret;
 844 }
 845
 846 void wl1271_debugfs_exit(struct wl1271 *wl)
 847 {
 848         kfree(wl->stats.fw_stats);
 849         wl->stats.fw_stats = NULL;
 850 }