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 #define WLCORE_MAX_BLOCK_SIZE ((size_t)(4*PAGE_SIZE)) 42 43 /* debugfs macros idea from mac80211 */ 44 int wl1271_format_buffer(char __user *userbuf, size_t count, 45 loff_t *ppos, char *fmt, ...) 46 { 47 va_list args; 48 char buf[DEBUGFS_FORMAT_BUFFER_SIZE]; 49 int res; 50 51 va_start(args, fmt); 52 res = vscnprintf(buf, sizeof(buf), fmt, args); 53 va_end(args); 54 55 return simple_read_from_buffer(userbuf, count, ppos, buf, res); 56 } 57 EXPORT_SYMBOL_GPL(wl1271_format_buffer); 58 59 void wl1271_debugfs_update_stats(struct wl1271 *wl) 60 { 61 int ret; 62 63 mutex_lock(&wl->mutex); 64 65 if (unlikely(wl->state != WLCORE_STATE_ON)) 66 goto out; 67 68 ret = wl1271_ps_elp_wakeup(wl); 69 if (ret < 0) 70 goto out; 71 72 if (!wl->plt && 73 time_after(jiffies, wl->stats.fw_stats_update + 74 msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) { 75 wl1271_acx_statistics(wl, wl->stats.fw_stats); 76 wl->stats.fw_stats_update = jiffies; 77 } 78 79 wl1271_ps_elp_sleep(wl); 80 81 out: 82 mutex_unlock(&wl->mutex); 83 } 84 EXPORT_SYMBOL_GPL(wl1271_debugfs_update_stats); 85 86 DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count); 87 DEBUGFS_READONLY_FILE(excessive_retries, "%u", 88 wl->stats.excessive_retries); 89 90 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf, 91 size_t count, loff_t *ppos) 92 { 93 struct wl1271 *wl = file->private_data; 94 u32 queue_len; 95 char buf[20]; 96 int res; 97 98 queue_len = wl1271_tx_total_queue_count(wl); 99 100 res = scnprintf(buf, sizeof(buf), "%u\n", queue_len); 101 return simple_read_from_buffer(userbuf, count, ppos, buf, res); 102 } 103 104 static const struct file_operations tx_queue_len_ops = { 105 .read = tx_queue_len_read, 106 .open = simple_open, 107 .llseek = default_llseek, 108 }; 109 110 static void chip_op_handler(struct wl1271 *wl, unsigned long value, 111 void *arg) 112 { 113 int ret; 114 int (*chip_op) (struct wl1271 *wl); 115 116 if (!arg) { 117 wl1271_warning("debugfs chip_op_handler with no callback"); 118 return; 119 } 120 121 ret = wl1271_ps_elp_wakeup(wl); 122 if (ret < 0) 123 return; 124 125 chip_op = arg; 126 chip_op(wl); 127 128 wl1271_ps_elp_sleep(wl); 129 } 130 131 132 static inline void no_write_handler(struct wl1271 *wl, 133 unsigned long value, 134 unsigned long param) 135 { 136 } 137 138 #define WL12XX_CONF_DEBUGFS(param, conf_sub_struct, \ 139 min_val, max_val, write_handler_locked, \ 140 write_handler_arg) \ 141 static ssize_t param##_read(struct file *file, \ 142 char __user *user_buf, \ 143 size_t count, loff_t *ppos) \ 144 { \ 145 struct wl1271 *wl = file->private_data; \ 146 return wl1271_format_buffer(user_buf, count, \ 147 ppos, "%d\n", \ 148 wl->conf.conf_sub_struct.param); \ 149 } \ 150 \ 151 static ssize_t param##_write(struct file *file, \ 152 const char __user *user_buf, \ 153 size_t count, loff_t *ppos) \ 154 { \ 155 struct wl1271 *wl = file->private_data; \ 156 unsigned long value; \ 157 int ret; \ 158 \ 159 ret = kstrtoul_from_user(user_buf, count, 10, &value); \ 160 if (ret < 0) { \ 161 wl1271_warning("illegal value for " #param); \ 162 return -EINVAL; \ 163 } \ 164 \ 165 if (value < min_val || value > max_val) { \ 166 wl1271_warning(#param " is not in valid range"); \ 167 return -ERANGE; \ 168 } \ 169 \ 170 mutex_lock(&wl->mutex); \ 171 wl->conf.conf_sub_struct.param = value; \ 172 \ 173 write_handler_locked(wl, value, write_handler_arg); \ 174 \ 175 mutex_unlock(&wl->mutex); \ 176 return count; \ 177 } \ 178 \ 179 static const struct file_operations param##_ops = { \ 180 .read = param##_read, \ 181 .write = param##_write, \ 182 .open = simple_open, \ 183 .llseek = default_llseek, \ 184 }; 185 186 WL12XX_CONF_DEBUGFS(irq_pkt_threshold, rx, 0, 65535, 187 chip_op_handler, wl1271_acx_init_rx_interrupt) 188 WL12XX_CONF_DEBUGFS(irq_blk_threshold, rx, 0, 65535, 189 chip_op_handler, wl1271_acx_init_rx_interrupt) 190 WL12XX_CONF_DEBUGFS(irq_timeout, rx, 0, 100, 191 chip_op_handler, wl1271_acx_init_rx_interrupt) 192 193 static ssize_t gpio_power_read(struct file *file, char __user *user_buf, 194 size_t count, loff_t *ppos) 195 { 196 struct wl1271 *wl = file->private_data; 197 bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags); 198 199 int res; 200 char buf[10]; 201 202 res = scnprintf(buf, sizeof(buf), "%d\n", state); 203 204 return simple_read_from_buffer(user_buf, count, ppos, buf, res); 205 } 206 207 static ssize_t gpio_power_write(struct file *file, 208 const char __user *user_buf, 209 size_t count, loff_t *ppos) 210 { 211 struct wl1271 *wl = file->private_data; 212 unsigned long value; 213 int ret; 214 215 ret = kstrtoul_from_user(user_buf, count, 10, &value); 216 if (ret < 0) { 217 wl1271_warning("illegal value in gpio_power"); 218 return -EINVAL; 219 } 220 221 mutex_lock(&wl->mutex); 222 223 if (value) 224 wl1271_power_on(wl); 225 else 226 wl1271_power_off(wl); 227 228 mutex_unlock(&wl->mutex); 229 return count; 230 } 231 232 static const struct file_operations gpio_power_ops = { 233 .read = gpio_power_read, 234 .write = gpio_power_write, 235 .open = simple_open, 236 .llseek = default_llseek, 237 }; 238 239 static ssize_t start_recovery_write(struct file *file, 240 const char __user *user_buf, 241 size_t count, loff_t *ppos) 242 { 243 struct wl1271 *wl = file->private_data; 244 245 mutex_lock(&wl->mutex); 246 wl12xx_queue_recovery_work(wl); 247 mutex_unlock(&wl->mutex); 248 249 return count; 250 } 251 252 static const struct file_operations start_recovery_ops = { 253 .write = start_recovery_write, 254 .open = simple_open, 255 .llseek = default_llseek, 256 }; 257 258 static ssize_t dynamic_ps_timeout_read(struct file *file, char __user *user_buf, 259 size_t count, loff_t *ppos) 260 { 261 struct wl1271 *wl = file->private_data; 262 263 return wl1271_format_buffer(user_buf, count, 264 ppos, "%d\n", 265 wl->conf.conn.dynamic_ps_timeout); 266 } 267 268 static ssize_t dynamic_ps_timeout_write(struct file *file, 269 const char __user *user_buf, 270 size_t count, loff_t *ppos) 271 { 272 struct wl1271 *wl = file->private_data; 273 struct wl12xx_vif *wlvif; 274 unsigned long value; 275 int ret; 276 277 ret = kstrtoul_from_user(user_buf, count, 10, &value); 278 if (ret < 0) { 279 wl1271_warning("illegal value in dynamic_ps"); 280 return -EINVAL; 281 } 282 283 if (value < 1 || value > 65535) { 284 wl1271_warning("dyanmic_ps_timeout is not in valid range"); 285 return -ERANGE; 286 } 287 288 mutex_lock(&wl->mutex); 289 290 wl->conf.conn.dynamic_ps_timeout = value; 291 292 if (unlikely(wl->state != WLCORE_STATE_ON)) 293 goto out; 294 295 ret = wl1271_ps_elp_wakeup(wl); 296 if (ret < 0) 297 goto out; 298 299 /* In case we're already in PSM, trigger it again to set new timeout 300 * immediately without waiting for re-association 301 */ 302 303 wl12xx_for_each_wlvif_sta(wl, wlvif) { 304 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) 305 wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE); 306 } 307 308 wl1271_ps_elp_sleep(wl); 309 310 out: 311 mutex_unlock(&wl->mutex); 312 return count; 313 } 314 315 static const struct file_operations dynamic_ps_timeout_ops = { 316 .read = dynamic_ps_timeout_read, 317 .write = dynamic_ps_timeout_write, 318 .open = simple_open, 319 .llseek = default_llseek, 320 }; 321 322 static ssize_t forced_ps_read(struct file *file, char __user *user_buf, 323 size_t count, loff_t *ppos) 324 { 325 struct wl1271 *wl = file->private_data; 326 327 return wl1271_format_buffer(user_buf, count, 328 ppos, "%d\n", 329 wl->conf.conn.forced_ps); 330 } 331 332 static ssize_t forced_ps_write(struct file *file, 333 const char __user *user_buf, 334 size_t count, loff_t *ppos) 335 { 336 struct wl1271 *wl = file->private_data; 337 struct wl12xx_vif *wlvif; 338 unsigned long value; 339 int ret, ps_mode; 340 341 ret = kstrtoul_from_user(user_buf, count, 10, &value); 342 if (ret < 0) { 343 wl1271_warning("illegal value in forced_ps"); 344 return -EINVAL; 345 } 346 347 if (value != 1 && value != 0) { 348 wl1271_warning("forced_ps should be either 0 or 1"); 349 return -ERANGE; 350 } 351 352 mutex_lock(&wl->mutex); 353 354 if (wl->conf.conn.forced_ps == value) 355 goto out; 356 357 wl->conf.conn.forced_ps = value; 358 359 if (unlikely(wl->state != WLCORE_STATE_ON)) 360 goto out; 361 362 ret = wl1271_ps_elp_wakeup(wl); 363 if (ret < 0) 364 goto out; 365 366 /* In case we're already in PSM, trigger it again to switch mode 367 * immediately without waiting for re-association 368 */ 369 370 ps_mode = value ? STATION_POWER_SAVE_MODE : STATION_AUTO_PS_MODE; 371 372 wl12xx_for_each_wlvif_sta(wl, wlvif) { 373 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) 374 wl1271_ps_set_mode(wl, wlvif, ps_mode); 375 } 376 377 wl1271_ps_elp_sleep(wl); 378 379 out: 380 mutex_unlock(&wl->mutex); 381 return count; 382 } 383 384 static const struct file_operations forced_ps_ops = { 385 .read = forced_ps_read, 386 .write = forced_ps_write, 387 .open = simple_open, 388 .llseek = default_llseek, 389 }; 390 391 static ssize_t split_scan_timeout_read(struct file *file, char __user *user_buf, 392 size_t count, loff_t *ppos) 393 { 394 struct wl1271 *wl = file->private_data; 395 396 return wl1271_format_buffer(user_buf, count, 397 ppos, "%d\n", 398 wl->conf.scan.split_scan_timeout / 1000); 399 } 400 401 static ssize_t split_scan_timeout_write(struct file *file, 402 const char __user *user_buf, 403 size_t count, loff_t *ppos) 404 { 405 struct wl1271 *wl = file->private_data; 406 unsigned long value; 407 int ret; 408 409 ret = kstrtoul_from_user(user_buf, count, 10, &value); 410 if (ret < 0) { 411 wl1271_warning("illegal value in split_scan_timeout"); 412 return -EINVAL; 413 } 414 415 if (value == 0) 416 wl1271_info("split scan will be disabled"); 417 418 mutex_lock(&wl->mutex); 419 420 wl->conf.scan.split_scan_timeout = value * 1000; 421 422 mutex_unlock(&wl->mutex); 423 return count; 424 } 425 426 static const struct file_operations split_scan_timeout_ops = { 427 .read = split_scan_timeout_read, 428 .write = split_scan_timeout_write, 429 .open = simple_open, 430 .llseek = default_llseek, 431 }; 432 433 static ssize_t driver_state_read(struct file *file, char __user *user_buf, 434 size_t count, loff_t *ppos) 435 { 436 struct wl1271 *wl = file->private_data; 437 int res = 0; 438 ssize_t ret; 439 char *buf; 440 441 #define DRIVER_STATE_BUF_LEN 1024 442 443 buf = kmalloc(DRIVER_STATE_BUF_LEN, GFP_KERNEL); 444 if (!buf) 445 return -ENOMEM; 446 447 mutex_lock(&wl->mutex); 448 449 #define DRIVER_STATE_PRINT(x, fmt) \ 450 (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\ 451 #x " = " fmt "\n", wl->x)) 452 453 #define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld") 454 #define DRIVER_STATE_PRINT_INT(x) DRIVER_STATE_PRINT(x, "%d") 455 #define DRIVER_STATE_PRINT_STR(x) DRIVER_STATE_PRINT(x, "%s") 456 #define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx") 457 #define DRIVER_STATE_PRINT_HEX(x) DRIVER_STATE_PRINT(x, "0x%x") 458 459 DRIVER_STATE_PRINT_INT(tx_blocks_available); 460 DRIVER_STATE_PRINT_INT(tx_allocated_blocks); 461 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]); 462 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]); 463 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]); 464 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]); 465 DRIVER_STATE_PRINT_INT(tx_frames_cnt); 466 DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]); 467 DRIVER_STATE_PRINT_INT(tx_queue_count[0]); 468 DRIVER_STATE_PRINT_INT(tx_queue_count[1]); 469 DRIVER_STATE_PRINT_INT(tx_queue_count[2]); 470 DRIVER_STATE_PRINT_INT(tx_queue_count[3]); 471 DRIVER_STATE_PRINT_INT(tx_packets_count); 472 DRIVER_STATE_PRINT_INT(tx_results_count); 473 DRIVER_STATE_PRINT_LHEX(flags); 474 DRIVER_STATE_PRINT_INT(tx_blocks_freed); 475 DRIVER_STATE_PRINT_INT(rx_counter); 476 DRIVER_STATE_PRINT_INT(state); 477 DRIVER_STATE_PRINT_INT(channel); 478 DRIVER_STATE_PRINT_INT(band); 479 DRIVER_STATE_PRINT_INT(power_level); 480 DRIVER_STATE_PRINT_INT(sg_enabled); 481 DRIVER_STATE_PRINT_INT(enable_11a); 482 DRIVER_STATE_PRINT_INT(noise); 483 DRIVER_STATE_PRINT_HEX(ap_fw_ps_map); 484 DRIVER_STATE_PRINT_LHEX(ap_ps_map); 485 DRIVER_STATE_PRINT_HEX(quirks); 486 DRIVER_STATE_PRINT_HEX(irq); 487 /* TODO: ref_clock and tcxo_clock were moved to wl12xx priv */ 488 DRIVER_STATE_PRINT_HEX(hw_pg_ver); 489 DRIVER_STATE_PRINT_HEX(platform_quirks); 490 DRIVER_STATE_PRINT_HEX(chip.id); 491 DRIVER_STATE_PRINT_STR(chip.fw_ver_str); 492 DRIVER_STATE_PRINT_STR(chip.phy_fw_ver_str); 493 DRIVER_STATE_PRINT_INT(recovery_count); 494 495 #undef DRIVER_STATE_PRINT_INT 496 #undef DRIVER_STATE_PRINT_LONG 497 #undef DRIVER_STATE_PRINT_HEX 498 #undef DRIVER_STATE_PRINT_LHEX 499 #undef DRIVER_STATE_PRINT_STR 500 #undef DRIVER_STATE_PRINT 501 #undef DRIVER_STATE_BUF_LEN 502 503 mutex_unlock(&wl->mutex); 504 505 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res); 506 kfree(buf); 507 return ret; 508 } 509 510 static const struct file_operations driver_state_ops = { 511 .read = driver_state_read, 512 .open = simple_open, 513 .llseek = default_llseek, 514 }; 515 516 static ssize_t vifs_state_read(struct file *file, char __user *user_buf, 517 size_t count, loff_t *ppos) 518 { 519 struct wl1271 *wl = file->private_data; 520 struct wl12xx_vif *wlvif; 521 int ret, res = 0; 522 const int buf_size = 4096; 523 char *buf; 524 char tmp_buf[64]; 525 526 buf = kzalloc(buf_size, GFP_KERNEL); 527 if (!buf) 528 return -ENOMEM; 529 530 mutex_lock(&wl->mutex); 531 532 #define VIF_STATE_PRINT(x, fmt) \ 533 (res += scnprintf(buf + res, buf_size - res, \ 534 #x " = " fmt "\n", wlvif->x)) 535 536 #define VIF_STATE_PRINT_LONG(x) VIF_STATE_PRINT(x, "%ld") 537 #define VIF_STATE_PRINT_INT(x) VIF_STATE_PRINT(x, "%d") 538 #define VIF_STATE_PRINT_STR(x) VIF_STATE_PRINT(x, "%s") 539 #define VIF_STATE_PRINT_LHEX(x) VIF_STATE_PRINT(x, "0x%lx") 540 #define VIF_STATE_PRINT_LLHEX(x) VIF_STATE_PRINT(x, "0x%llx") 541 #define VIF_STATE_PRINT_HEX(x) VIF_STATE_PRINT(x, "0x%x") 542 543 #define VIF_STATE_PRINT_NSTR(x, len) \ 544 do { \ 545 memset(tmp_buf, 0, sizeof(tmp_buf)); \ 546 memcpy(tmp_buf, wlvif->x, \ 547 min_t(u8, len, sizeof(tmp_buf) - 1)); \ 548 res += scnprintf(buf + res, buf_size - res, \ 549 #x " = %s\n", tmp_buf); \ 550 } while (0) 551 552 wl12xx_for_each_wlvif(wl, wlvif) { 553 VIF_STATE_PRINT_INT(role_id); 554 VIF_STATE_PRINT_INT(bss_type); 555 VIF_STATE_PRINT_LHEX(flags); 556 VIF_STATE_PRINT_INT(p2p); 557 VIF_STATE_PRINT_INT(dev_role_id); 558 VIF_STATE_PRINT_INT(dev_hlid); 559 560 if (wlvif->bss_type == BSS_TYPE_STA_BSS || 561 wlvif->bss_type == BSS_TYPE_IBSS) { 562 VIF_STATE_PRINT_INT(sta.hlid); 563 VIF_STATE_PRINT_INT(sta.basic_rate_idx); 564 VIF_STATE_PRINT_INT(sta.ap_rate_idx); 565 VIF_STATE_PRINT_INT(sta.p2p_rate_idx); 566 VIF_STATE_PRINT_INT(sta.qos); 567 } else { 568 VIF_STATE_PRINT_INT(ap.global_hlid); 569 VIF_STATE_PRINT_INT(ap.bcast_hlid); 570 VIF_STATE_PRINT_LHEX(ap.sta_hlid_map[0]); 571 VIF_STATE_PRINT_INT(ap.mgmt_rate_idx); 572 VIF_STATE_PRINT_INT(ap.bcast_rate_idx); 573 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[0]); 574 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[1]); 575 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[2]); 576 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[3]); 577 } 578 VIF_STATE_PRINT_INT(last_tx_hlid); 579 VIF_STATE_PRINT_INT(tx_queue_count[0]); 580 VIF_STATE_PRINT_INT(tx_queue_count[1]); 581 VIF_STATE_PRINT_INT(tx_queue_count[2]); 582 VIF_STATE_PRINT_INT(tx_queue_count[3]); 583 VIF_STATE_PRINT_LHEX(links_map[0]); 584 VIF_STATE_PRINT_NSTR(ssid, wlvif->ssid_len); 585 VIF_STATE_PRINT_INT(band); 586 VIF_STATE_PRINT_INT(channel); 587 VIF_STATE_PRINT_HEX(bitrate_masks[0]); 588 VIF_STATE_PRINT_HEX(bitrate_masks[1]); 589 VIF_STATE_PRINT_HEX(basic_rate_set); 590 VIF_STATE_PRINT_HEX(basic_rate); 591 VIF_STATE_PRINT_HEX(rate_set); 592 VIF_STATE_PRINT_INT(beacon_int); 593 VIF_STATE_PRINT_INT(default_key); 594 VIF_STATE_PRINT_INT(aid); 595 VIF_STATE_PRINT_INT(psm_entry_retry); 596 VIF_STATE_PRINT_INT(power_level); 597 VIF_STATE_PRINT_INT(rssi_thold); 598 VIF_STATE_PRINT_INT(last_rssi_event); 599 VIF_STATE_PRINT_INT(ba_support); 600 VIF_STATE_PRINT_INT(ba_allowed); 601 VIF_STATE_PRINT_LLHEX(total_freed_pkts); 602 } 603 604 #undef VIF_STATE_PRINT_INT 605 #undef VIF_STATE_PRINT_LONG 606 #undef VIF_STATE_PRINT_HEX 607 #undef VIF_STATE_PRINT_LHEX 608 #undef VIF_STATE_PRINT_LLHEX 609 #undef VIF_STATE_PRINT_STR 610 #undef VIF_STATE_PRINT_NSTR 611 #undef VIF_STATE_PRINT 612 613 mutex_unlock(&wl->mutex); 614 615 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res); 616 kfree(buf); 617 return ret; 618 } 619 620 static const struct file_operations vifs_state_ops = { 621 .read = vifs_state_read, 622 .open = simple_open, 623 .llseek = default_llseek, 624 }; 625 626 static ssize_t dtim_interval_read(struct file *file, char __user *user_buf, 627 size_t count, loff_t *ppos) 628 { 629 struct wl1271 *wl = file->private_data; 630 u8 value; 631 632 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM || 633 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM) 634 value = wl->conf.conn.listen_interval; 635 else 636 value = 0; 637 638 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); 639 } 640 641 static ssize_t dtim_interval_write(struct file *file, 642 const char __user *user_buf, 643 size_t count, loff_t *ppos) 644 { 645 struct wl1271 *wl = file->private_data; 646 unsigned long value; 647 int ret; 648 649 ret = kstrtoul_from_user(user_buf, count, 10, &value); 650 if (ret < 0) { 651 wl1271_warning("illegal value for dtim_interval"); 652 return -EINVAL; 653 } 654 655 if (value < 1 || value > 10) { 656 wl1271_warning("dtim value is not in valid range"); 657 return -ERANGE; 658 } 659 660 mutex_lock(&wl->mutex); 661 662 wl->conf.conn.listen_interval = value; 663 /* for some reason there are different event types for 1 and >1 */ 664 if (value == 1) 665 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM; 666 else 667 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM; 668 669 /* 670 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only 671 * take effect on the next time we enter psm. 672 */ 673 mutex_unlock(&wl->mutex); 674 return count; 675 } 676 677 static const struct file_operations dtim_interval_ops = { 678 .read = dtim_interval_read, 679 .write = dtim_interval_write, 680 .open = simple_open, 681 .llseek = default_llseek, 682 }; 683 684 685 686 static ssize_t suspend_dtim_interval_read(struct file *file, 687 char __user *user_buf, 688 size_t count, loff_t *ppos) 689 { 690 struct wl1271 *wl = file->private_data; 691 u8 value; 692 693 if (wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_DTIM || 694 wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM) 695 value = wl->conf.conn.suspend_listen_interval; 696 else 697 value = 0; 698 699 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); 700 } 701 702 static ssize_t suspend_dtim_interval_write(struct file *file, 703 const char __user *user_buf, 704 size_t count, loff_t *ppos) 705 { 706 struct wl1271 *wl = file->private_data; 707 unsigned long value; 708 int ret; 709 710 ret = kstrtoul_from_user(user_buf, count, 10, &value); 711 if (ret < 0) { 712 wl1271_warning("illegal value for suspend_dtim_interval"); 713 return -EINVAL; 714 } 715 716 if (value < 1 || value > 10) { 717 wl1271_warning("suspend_dtim value is not in valid range"); 718 return -ERANGE; 719 } 720 721 mutex_lock(&wl->mutex); 722 723 wl->conf.conn.suspend_listen_interval = value; 724 /* for some reason there are different event types for 1 and >1 */ 725 if (value == 1) 726 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_DTIM; 727 else 728 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM; 729 730 mutex_unlock(&wl->mutex); 731 return count; 732 } 733 734 735 static const struct file_operations suspend_dtim_interval_ops = { 736 .read = suspend_dtim_interval_read, 737 .write = suspend_dtim_interval_write, 738 .open = simple_open, 739 .llseek = default_llseek, 740 }; 741 742 static ssize_t beacon_interval_read(struct file *file, char __user *user_buf, 743 size_t count, loff_t *ppos) 744 { 745 struct wl1271 *wl = file->private_data; 746 u8 value; 747 748 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON || 749 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS) 750 value = wl->conf.conn.listen_interval; 751 else 752 value = 0; 753 754 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); 755 } 756 757 static ssize_t beacon_interval_write(struct file *file, 758 const char __user *user_buf, 759 size_t count, loff_t *ppos) 760 { 761 struct wl1271 *wl = file->private_data; 762 unsigned long value; 763 int ret; 764 765 ret = kstrtoul_from_user(user_buf, count, 10, &value); 766 if (ret < 0) { 767 wl1271_warning("illegal value for beacon_interval"); 768 return -EINVAL; 769 } 770 771 if (value < 1 || value > 255) { 772 wl1271_warning("beacon interval value is not in valid range"); 773 return -ERANGE; 774 } 775 776 mutex_lock(&wl->mutex); 777 778 wl->conf.conn.listen_interval = value; 779 /* for some reason there are different event types for 1 and >1 */ 780 if (value == 1) 781 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON; 782 else 783 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS; 784 785 /* 786 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only 787 * take effect on the next time we enter psm. 788 */ 789 mutex_unlock(&wl->mutex); 790 return count; 791 } 792 793 static const struct file_operations beacon_interval_ops = { 794 .read = beacon_interval_read, 795 .write = beacon_interval_write, 796 .open = simple_open, 797 .llseek = default_llseek, 798 }; 799 800 static ssize_t rx_streaming_interval_write(struct file *file, 801 const char __user *user_buf, 802 size_t count, loff_t *ppos) 803 { 804 struct wl1271 *wl = file->private_data; 805 struct wl12xx_vif *wlvif; 806 unsigned long value; 807 int ret; 808 809 ret = kstrtoul_from_user(user_buf, count, 10, &value); 810 if (ret < 0) { 811 wl1271_warning("illegal value in rx_streaming_interval!"); 812 return -EINVAL; 813 } 814 815 /* valid values: 0, 10-100 */ 816 if (value && (value < 10 || value > 100)) { 817 wl1271_warning("value is not in range!"); 818 return -ERANGE; 819 } 820 821 mutex_lock(&wl->mutex); 822 823 wl->conf.rx_streaming.interval = value; 824 825 ret = wl1271_ps_elp_wakeup(wl); 826 if (ret < 0) 827 goto out; 828 829 wl12xx_for_each_wlvif_sta(wl, wlvif) { 830 wl1271_recalc_rx_streaming(wl, wlvif); 831 } 832 833 wl1271_ps_elp_sleep(wl); 834 out: 835 mutex_unlock(&wl->mutex); 836 return count; 837 } 838 839 static ssize_t rx_streaming_interval_read(struct file *file, 840 char __user *userbuf, 841 size_t count, loff_t *ppos) 842 { 843 struct wl1271 *wl = file->private_data; 844 return wl1271_format_buffer(userbuf, count, ppos, 845 "%d\n", wl->conf.rx_streaming.interval); 846 } 847 848 static const struct file_operations rx_streaming_interval_ops = { 849 .read = rx_streaming_interval_read, 850 .write = rx_streaming_interval_write, 851 .open = simple_open, 852 .llseek = default_llseek, 853 }; 854 855 static ssize_t rx_streaming_always_write(struct file *file, 856 const char __user *user_buf, 857 size_t count, loff_t *ppos) 858 { 859 struct wl1271 *wl = file->private_data; 860 struct wl12xx_vif *wlvif; 861 unsigned long value; 862 int ret; 863 864 ret = kstrtoul_from_user(user_buf, count, 10, &value); 865 if (ret < 0) { 866 wl1271_warning("illegal value in rx_streaming_write!"); 867 return -EINVAL; 868 } 869 870 /* valid values: 0, 10-100 */ 871 if (!(value == 0 || value == 1)) { 872 wl1271_warning("value is not in valid!"); 873 return -EINVAL; 874 } 875 876 mutex_lock(&wl->mutex); 877 878 wl->conf.rx_streaming.always = value; 879 880 ret = wl1271_ps_elp_wakeup(wl); 881 if (ret < 0) 882 goto out; 883 884 wl12xx_for_each_wlvif_sta(wl, wlvif) { 885 wl1271_recalc_rx_streaming(wl, wlvif); 886 } 887 888 wl1271_ps_elp_sleep(wl); 889 out: 890 mutex_unlock(&wl->mutex); 891 return count; 892 } 893 894 static ssize_t rx_streaming_always_read(struct file *file, 895 char __user *userbuf, 896 size_t count, loff_t *ppos) 897 { 898 struct wl1271 *wl = file->private_data; 899 return wl1271_format_buffer(userbuf, count, ppos, 900 "%d\n", wl->conf.rx_streaming.always); 901 } 902 903 static const struct file_operations rx_streaming_always_ops = { 904 .read = rx_streaming_always_read, 905 .write = rx_streaming_always_write, 906 .open = simple_open, 907 .llseek = default_llseek, 908 }; 909 910 static ssize_t beacon_filtering_write(struct file *file, 911 const char __user *user_buf, 912 size_t count, loff_t *ppos) 913 { 914 struct wl1271 *wl = file->private_data; 915 struct wl12xx_vif *wlvif; 916 char buf[10]; 917 size_t len; 918 unsigned long value; 919 int ret; 920 921 len = min(count, sizeof(buf) - 1); 922 if (copy_from_user(buf, user_buf, len)) 923 return -EFAULT; 924 buf[len] = '\0'; 925 926 ret = kstrtoul(buf, 0, &value); 927 if (ret < 0) { 928 wl1271_warning("illegal value for beacon_filtering!"); 929 return -EINVAL; 930 } 931 932 mutex_lock(&wl->mutex); 933 934 ret = wl1271_ps_elp_wakeup(wl); 935 if (ret < 0) 936 goto out; 937 938 wl12xx_for_each_wlvif(wl, wlvif) { 939 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value); 940 } 941 942 wl1271_ps_elp_sleep(wl); 943 out: 944 mutex_unlock(&wl->mutex); 945 return count; 946 } 947 948 static const struct file_operations beacon_filtering_ops = { 949 .write = beacon_filtering_write, 950 .open = simple_open, 951 .llseek = default_llseek, 952 }; 953 954 static ssize_t fw_stats_raw_read(struct file *file, 955 char __user *userbuf, 956 size_t count, loff_t *ppos) 957 { 958 struct wl1271 *wl = file->private_data; 959 960 wl1271_debugfs_update_stats(wl); 961 962 return simple_read_from_buffer(userbuf, count, ppos, 963 wl->stats.fw_stats, 964 wl->stats.fw_stats_len); 965 } 966 967 static const struct file_operations fw_stats_raw_ops = { 968 .read = fw_stats_raw_read, 969 .open = simple_open, 970 .llseek = default_llseek, 971 }; 972 973 static ssize_t sleep_auth_read(struct file *file, char __user *user_buf, 974 size_t count, loff_t *ppos) 975 { 976 struct wl1271 *wl = file->private_data; 977 978 return wl1271_format_buffer(user_buf, count, 979 ppos, "%d\n", 980 wl->sleep_auth); 981 } 982 983 static ssize_t sleep_auth_write(struct file *file, 984 const char __user *user_buf, 985 size_t count, loff_t *ppos) 986 { 987 struct wl1271 *wl = file->private_data; 988 unsigned long value; 989 int ret; 990 991 ret = kstrtoul_from_user(user_buf, count, 0, &value); 992 if (ret < 0) { 993 wl1271_warning("illegal value in sleep_auth"); 994 return -EINVAL; 995 } 996 997 if (value > WL1271_PSM_MAX) { 998 wl1271_warning("sleep_auth must be between 0 and %d", 999 WL1271_PSM_MAX); 1000 return -ERANGE; 1001 } 1002 1003 mutex_lock(&wl->mutex); 1004 1005 wl->conf.conn.sta_sleep_auth = value; 1006 1007 if (unlikely(wl->state != WLCORE_STATE_ON)) { 1008 /* this will show up on "read" in case we are off */ 1009 wl->sleep_auth = value; 1010 goto out; 1011 } 1012 1013 ret = wl1271_ps_elp_wakeup(wl); 1014 if (ret < 0) 1015 goto out; 1016 1017 ret = wl1271_acx_sleep_auth(wl, value); 1018 if (ret < 0) 1019 goto out_sleep; 1020 1021 out_sleep: 1022 wl1271_ps_elp_sleep(wl); 1023 out: 1024 mutex_unlock(&wl->mutex); 1025 return count; 1026 } 1027 1028 static const struct file_operations sleep_auth_ops = { 1029 .read = sleep_auth_read, 1030 .write = sleep_auth_write, 1031 .open = simple_open, 1032 .llseek = default_llseek, 1033 }; 1034 1035 static ssize_t dev_mem_read(struct file *file, 1036 char __user *user_buf, size_t count, 1037 loff_t *ppos) 1038 { 1039 struct wl1271 *wl = file->private_data; 1040 struct wlcore_partition_set part, old_part; 1041 size_t bytes = count; 1042 int ret; 1043 char *buf; 1044 1045 /* only requests of dword-aligned size and offset are supported */ 1046 if (bytes % 4) 1047 return -EINVAL; 1048 1049 if (*ppos % 4) 1050 return -EINVAL; 1051 1052 /* function should return in reasonable time */ 1053 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE); 1054 1055 if (bytes == 0) 1056 return -EINVAL; 1057 1058 memset(&part, 0, sizeof(part)); 1059 part.mem.start = *ppos; 1060 part.mem.size = bytes; 1061 1062 buf = kmalloc(bytes, GFP_KERNEL); 1063 if (!buf) 1064 return -ENOMEM; 1065 1066 mutex_lock(&wl->mutex); 1067 1068 if (unlikely(wl->state == WLCORE_STATE_OFF)) { 1069 ret = -EFAULT; 1070 goto skip_read; 1071 } 1072 1073 /* 1074 * Don't fail if elp_wakeup returns an error, so the device's memory 1075 * could be read even if the FW crashed 1076 */ 1077 wl1271_ps_elp_wakeup(wl); 1078 1079 /* store current partition and switch partition */ 1080 memcpy(&old_part, &wl->curr_part, sizeof(old_part)); 1081 ret = wlcore_set_partition(wl, &part); 1082 if (ret < 0) 1083 goto part_err; 1084 1085 ret = wlcore_raw_read(wl, 0, buf, bytes, false); 1086 if (ret < 0) 1087 goto read_err; 1088 1089 read_err: 1090 /* recover partition */ 1091 ret = wlcore_set_partition(wl, &old_part); 1092 if (ret < 0) 1093 goto part_err; 1094 1095 part_err: 1096 wl1271_ps_elp_sleep(wl); 1097 1098 skip_read: 1099 mutex_unlock(&wl->mutex); 1100 1101 if (ret == 0) { 1102 ret = copy_to_user(user_buf, buf, bytes); 1103 if (ret < bytes) { 1104 bytes -= ret; 1105 *ppos += bytes; 1106 ret = 0; 1107 } else { 1108 ret = -EFAULT; 1109 } 1110 } 1111 1112 kfree(buf); 1113 1114 return ((ret == 0) ? bytes : ret); 1115 } 1116 1117 static ssize_t dev_mem_write(struct file *file, const char __user *user_buf, 1118 size_t count, loff_t *ppos) 1119 { 1120 struct wl1271 *wl = file->private_data; 1121 struct wlcore_partition_set part, old_part; 1122 size_t bytes = count; 1123 int ret; 1124 char *buf; 1125 1126 /* only requests of dword-aligned size and offset are supported */ 1127 if (bytes % 4) 1128 return -EINVAL; 1129 1130 if (*ppos % 4) 1131 return -EINVAL; 1132 1133 /* function should return in reasonable time */ 1134 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE); 1135 1136 if (bytes == 0) 1137 return -EINVAL; 1138 1139 memset(&part, 0, sizeof(part)); 1140 part.mem.start = *ppos; 1141 part.mem.size = bytes; 1142 1143 buf = kmalloc(bytes, GFP_KERNEL); 1144 if (!buf) 1145 return -ENOMEM; 1146 1147 ret = copy_from_user(buf, user_buf, bytes); 1148 if (ret) { 1149 ret = -EFAULT; 1150 goto err_out; 1151 } 1152 1153 mutex_lock(&wl->mutex); 1154 1155 if (unlikely(wl->state == WLCORE_STATE_OFF)) { 1156 ret = -EFAULT; 1157 goto skip_write; 1158 } 1159 1160 /* 1161 * Don't fail if elp_wakeup returns an error, so the device's memory 1162 * could be read even if the FW crashed 1163 */ 1164 wl1271_ps_elp_wakeup(wl); 1165 1166 /* store current partition and switch partition */ 1167 memcpy(&old_part, &wl->curr_part, sizeof(old_part)); 1168 ret = wlcore_set_partition(wl, &part); 1169 if (ret < 0) 1170 goto part_err; 1171 1172 ret = wlcore_raw_write(wl, 0, buf, bytes, false); 1173 if (ret < 0) 1174 goto write_err; 1175 1176 write_err: 1177 /* recover partition */ 1178 ret = wlcore_set_partition(wl, &old_part); 1179 if (ret < 0) 1180 goto part_err; 1181 1182 part_err: 1183 wl1271_ps_elp_sleep(wl); 1184 1185 skip_write: 1186 mutex_unlock(&wl->mutex); 1187 1188 if (ret == 0) 1189 *ppos += bytes; 1190 1191 err_out: 1192 kfree(buf); 1193 1194 return ((ret == 0) ? bytes : ret); 1195 } 1196 1197 static loff_t dev_mem_seek(struct file *file, loff_t offset, int orig) 1198 { 1199 loff_t ret; 1200 1201 /* only requests of dword-aligned size and offset are supported */ 1202 if (offset % 4) 1203 return -EINVAL; 1204 1205 switch (orig) { 1206 case SEEK_SET: 1207 file->f_pos = offset; 1208 ret = file->f_pos; 1209 break; 1210 case SEEK_CUR: 1211 file->f_pos += offset; 1212 ret = file->f_pos; 1213 break; 1214 default: 1215 ret = -EINVAL; 1216 } 1217 1218 return ret; 1219 } 1220 1221 static const struct file_operations dev_mem_ops = { 1222 .open = simple_open, 1223 .read = dev_mem_read, 1224 .write = dev_mem_write, 1225 .llseek = dev_mem_seek, 1226 }; 1227 1228 static int wl1271_debugfs_add_files(struct wl1271 *wl, 1229 struct dentry *rootdir) 1230 { 1231 int ret = 0; 1232 struct dentry *entry, *streaming; 1233 1234 DEBUGFS_ADD(tx_queue_len, rootdir); 1235 DEBUGFS_ADD(retry_count, rootdir); 1236 DEBUGFS_ADD(excessive_retries, rootdir); 1237 1238 DEBUGFS_ADD(gpio_power, rootdir); 1239 DEBUGFS_ADD(start_recovery, rootdir); 1240 DEBUGFS_ADD(driver_state, rootdir); 1241 DEBUGFS_ADD(vifs_state, rootdir); 1242 DEBUGFS_ADD(dtim_interval, rootdir); 1243 DEBUGFS_ADD(suspend_dtim_interval, rootdir); 1244 DEBUGFS_ADD(beacon_interval, rootdir); 1245 DEBUGFS_ADD(beacon_filtering, rootdir); 1246 DEBUGFS_ADD(dynamic_ps_timeout, rootdir); 1247 DEBUGFS_ADD(forced_ps, rootdir); 1248 DEBUGFS_ADD(split_scan_timeout, rootdir); 1249 DEBUGFS_ADD(irq_pkt_threshold, rootdir); 1250 DEBUGFS_ADD(irq_blk_threshold, rootdir); 1251 DEBUGFS_ADD(irq_timeout, rootdir); 1252 DEBUGFS_ADD(fw_stats_raw, rootdir); 1253 DEBUGFS_ADD(sleep_auth, rootdir); 1254 1255 streaming = debugfs_create_dir("rx_streaming", rootdir); 1256 if (!streaming || IS_ERR(streaming)) 1257 goto err; 1258 1259 DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming); 1260 DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming); 1261 1262 DEBUGFS_ADD_PREFIX(dev, mem, rootdir); 1263 1264 return 0; 1265 1266 err: 1267 if (IS_ERR(entry)) 1268 ret = PTR_ERR(entry); 1269 else 1270 ret = -ENOMEM; 1271 1272 return ret; 1273 } 1274 1275 void wl1271_debugfs_reset(struct wl1271 *wl) 1276 { 1277 if (!wl->stats.fw_stats) 1278 return; 1279 1280 memset(wl->stats.fw_stats, 0, wl->stats.fw_stats_len); 1281 wl->stats.retry_count = 0; 1282 wl->stats.excessive_retries = 0; 1283 } 1284 1285 int wl1271_debugfs_init(struct wl1271 *wl) 1286 { 1287 int ret; 1288 struct dentry *rootdir; 1289 1290 rootdir = debugfs_create_dir(KBUILD_MODNAME, 1291 wl->hw->wiphy->debugfsdir); 1292 1293 if (IS_ERR(rootdir)) { 1294 ret = PTR_ERR(rootdir); 1295 goto out; 1296 } 1297 1298 wl->stats.fw_stats = kzalloc(wl->stats.fw_stats_len, GFP_KERNEL); 1299 if (!wl->stats.fw_stats) { 1300 ret = -ENOMEM; 1301 goto out_remove; 1302 } 1303 1304 wl->stats.fw_stats_update = jiffies; 1305 1306 ret = wl1271_debugfs_add_files(wl, rootdir); 1307 if (ret < 0) 1308 goto out_exit; 1309 1310 ret = wlcore_debugfs_init(wl, rootdir); 1311 if (ret < 0) 1312 goto out_exit; 1313 1314 goto out; 1315 1316 out_exit: 1317 wl1271_debugfs_exit(wl); 1318 1319 out_remove: 1320 debugfs_remove_recursive(rootdir); 1321 1322 out: 1323 return ret; 1324 } 1325 1326 void wl1271_debugfs_exit(struct wl1271 *wl) 1327 { 1328 kfree(wl->stats.fw_stats); 1329 wl->stats.fw_stats = NULL; 1330 } 1331