1 /* 2 * This file is part of wl1271 3 * 4 * Copyright (C) 2009 Nokia Corporation 5 * 6 * Contact: Luciano Coelho <[email protected]> 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.ba_rx_bitmap); 564 VIF_STATE_PRINT_INT(sta.basic_rate_idx); 565 VIF_STATE_PRINT_INT(sta.ap_rate_idx); 566 VIF_STATE_PRINT_INT(sta.p2p_rate_idx); 567 VIF_STATE_PRINT_INT(sta.qos); 568 } else { 569 VIF_STATE_PRINT_INT(ap.global_hlid); 570 VIF_STATE_PRINT_INT(ap.bcast_hlid); 571 VIF_STATE_PRINT_LHEX(ap.sta_hlid_map[0]); 572 VIF_STATE_PRINT_INT(ap.mgmt_rate_idx); 573 VIF_STATE_PRINT_INT(ap.bcast_rate_idx); 574 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[0]); 575 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[1]); 576 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[2]); 577 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[3]); 578 } 579 VIF_STATE_PRINT_INT(last_tx_hlid); 580 VIF_STATE_PRINT_INT(tx_queue_count[0]); 581 VIF_STATE_PRINT_INT(tx_queue_count[1]); 582 VIF_STATE_PRINT_INT(tx_queue_count[2]); 583 VIF_STATE_PRINT_INT(tx_queue_count[3]); 584 VIF_STATE_PRINT_LHEX(links_map[0]); 585 VIF_STATE_PRINT_NSTR(ssid, wlvif->ssid_len); 586 VIF_STATE_PRINT_INT(band); 587 VIF_STATE_PRINT_INT(channel); 588 VIF_STATE_PRINT_HEX(bitrate_masks[0]); 589 VIF_STATE_PRINT_HEX(bitrate_masks[1]); 590 VIF_STATE_PRINT_HEX(basic_rate_set); 591 VIF_STATE_PRINT_HEX(basic_rate); 592 VIF_STATE_PRINT_HEX(rate_set); 593 VIF_STATE_PRINT_INT(beacon_int); 594 VIF_STATE_PRINT_INT(default_key); 595 VIF_STATE_PRINT_INT(aid); 596 VIF_STATE_PRINT_INT(psm_entry_retry); 597 VIF_STATE_PRINT_INT(power_level); 598 VIF_STATE_PRINT_INT(rssi_thold); 599 VIF_STATE_PRINT_INT(last_rssi_event); 600 VIF_STATE_PRINT_INT(ba_support); 601 VIF_STATE_PRINT_INT(ba_allowed); 602 VIF_STATE_PRINT_LLHEX(tx_security_seq); 603 VIF_STATE_PRINT_INT(tx_security_last_seq_lsb); 604 } 605 606 #undef VIF_STATE_PRINT_INT 607 #undef VIF_STATE_PRINT_LONG 608 #undef VIF_STATE_PRINT_HEX 609 #undef VIF_STATE_PRINT_LHEX 610 #undef VIF_STATE_PRINT_LLHEX 611 #undef VIF_STATE_PRINT_STR 612 #undef VIF_STATE_PRINT_NSTR 613 #undef VIF_STATE_PRINT 614 615 mutex_unlock(&wl->mutex); 616 617 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res); 618 kfree(buf); 619 return ret; 620 } 621 622 static const struct file_operations vifs_state_ops = { 623 .read = vifs_state_read, 624 .open = simple_open, 625 .llseek = default_llseek, 626 }; 627 628 static ssize_t dtim_interval_read(struct file *file, char __user *user_buf, 629 size_t count, loff_t *ppos) 630 { 631 struct wl1271 *wl = file->private_data; 632 u8 value; 633 634 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM || 635 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM) 636 value = wl->conf.conn.listen_interval; 637 else 638 value = 0; 639 640 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); 641 } 642 643 static ssize_t dtim_interval_write(struct file *file, 644 const char __user *user_buf, 645 size_t count, loff_t *ppos) 646 { 647 struct wl1271 *wl = file->private_data; 648 unsigned long value; 649 int ret; 650 651 ret = kstrtoul_from_user(user_buf, count, 10, &value); 652 if (ret < 0) { 653 wl1271_warning("illegal value for dtim_interval"); 654 return -EINVAL; 655 } 656 657 if (value < 1 || value > 10) { 658 wl1271_warning("dtim value is not in valid range"); 659 return -ERANGE; 660 } 661 662 mutex_lock(&wl->mutex); 663 664 wl->conf.conn.listen_interval = value; 665 /* for some reason there are different event types for 1 and >1 */ 666 if (value == 1) 667 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM; 668 else 669 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM; 670 671 /* 672 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only 673 * take effect on the next time we enter psm. 674 */ 675 mutex_unlock(&wl->mutex); 676 return count; 677 } 678 679 static const struct file_operations dtim_interval_ops = { 680 .read = dtim_interval_read, 681 .write = dtim_interval_write, 682 .open = simple_open, 683 .llseek = default_llseek, 684 }; 685 686 687 688 static ssize_t suspend_dtim_interval_read(struct file *file, 689 char __user *user_buf, 690 size_t count, loff_t *ppos) 691 { 692 struct wl1271 *wl = file->private_data; 693 u8 value; 694 695 if (wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_DTIM || 696 wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM) 697 value = wl->conf.conn.suspend_listen_interval; 698 else 699 value = 0; 700 701 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); 702 } 703 704 static ssize_t suspend_dtim_interval_write(struct file *file, 705 const char __user *user_buf, 706 size_t count, loff_t *ppos) 707 { 708 struct wl1271 *wl = file->private_data; 709 unsigned long value; 710 int ret; 711 712 ret = kstrtoul_from_user(user_buf, count, 10, &value); 713 if (ret < 0) { 714 wl1271_warning("illegal value for suspend_dtim_interval"); 715 return -EINVAL; 716 } 717 718 if (value < 1 || value > 10) { 719 wl1271_warning("suspend_dtim value is not in valid range"); 720 return -ERANGE; 721 } 722 723 mutex_lock(&wl->mutex); 724 725 wl->conf.conn.suspend_listen_interval = value; 726 /* for some reason there are different event types for 1 and >1 */ 727 if (value == 1) 728 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_DTIM; 729 else 730 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM; 731 732 mutex_unlock(&wl->mutex); 733 return count; 734 } 735 736 737 static const struct file_operations suspend_dtim_interval_ops = { 738 .read = suspend_dtim_interval_read, 739 .write = suspend_dtim_interval_write, 740 .open = simple_open, 741 .llseek = default_llseek, 742 }; 743 744 static ssize_t beacon_interval_read(struct file *file, char __user *user_buf, 745 size_t count, loff_t *ppos) 746 { 747 struct wl1271 *wl = file->private_data; 748 u8 value; 749 750 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON || 751 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS) 752 value = wl->conf.conn.listen_interval; 753 else 754 value = 0; 755 756 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); 757 } 758 759 static ssize_t beacon_interval_write(struct file *file, 760 const char __user *user_buf, 761 size_t count, loff_t *ppos) 762 { 763 struct wl1271 *wl = file->private_data; 764 unsigned long value; 765 int ret; 766 767 ret = kstrtoul_from_user(user_buf, count, 10, &value); 768 if (ret < 0) { 769 wl1271_warning("illegal value for beacon_interval"); 770 return -EINVAL; 771 } 772 773 if (value < 1 || value > 255) { 774 wl1271_warning("beacon interval value is not in valid range"); 775 return -ERANGE; 776 } 777 778 mutex_lock(&wl->mutex); 779 780 wl->conf.conn.listen_interval = value; 781 /* for some reason there are different event types for 1 and >1 */ 782 if (value == 1) 783 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON; 784 else 785 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS; 786 787 /* 788 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only 789 * take effect on the next time we enter psm. 790 */ 791 mutex_unlock(&wl->mutex); 792 return count; 793 } 794 795 static const struct file_operations beacon_interval_ops = { 796 .read = beacon_interval_read, 797 .write = beacon_interval_write, 798 .open = simple_open, 799 .llseek = default_llseek, 800 }; 801 802 static ssize_t rx_streaming_interval_write(struct file *file, 803 const char __user *user_buf, 804 size_t count, loff_t *ppos) 805 { 806 struct wl1271 *wl = file->private_data; 807 struct wl12xx_vif *wlvif; 808 unsigned long value; 809 int ret; 810 811 ret = kstrtoul_from_user(user_buf, count, 10, &value); 812 if (ret < 0) { 813 wl1271_warning("illegal value in rx_streaming_interval!"); 814 return -EINVAL; 815 } 816 817 /* valid values: 0, 10-100 */ 818 if (value && (value < 10 || value > 100)) { 819 wl1271_warning("value is not in range!"); 820 return -ERANGE; 821 } 822 823 mutex_lock(&wl->mutex); 824 825 wl->conf.rx_streaming.interval = value; 826 827 ret = wl1271_ps_elp_wakeup(wl); 828 if (ret < 0) 829 goto out; 830 831 wl12xx_for_each_wlvif_sta(wl, wlvif) { 832 wl1271_recalc_rx_streaming(wl, wlvif); 833 } 834 835 wl1271_ps_elp_sleep(wl); 836 out: 837 mutex_unlock(&wl->mutex); 838 return count; 839 } 840 841 static ssize_t rx_streaming_interval_read(struct file *file, 842 char __user *userbuf, 843 size_t count, loff_t *ppos) 844 { 845 struct wl1271 *wl = file->private_data; 846 return wl1271_format_buffer(userbuf, count, ppos, 847 "%d\n", wl->conf.rx_streaming.interval); 848 } 849 850 static const struct file_operations rx_streaming_interval_ops = { 851 .read = rx_streaming_interval_read, 852 .write = rx_streaming_interval_write, 853 .open = simple_open, 854 .llseek = default_llseek, 855 }; 856 857 static ssize_t rx_streaming_always_write(struct file *file, 858 const char __user *user_buf, 859 size_t count, loff_t *ppos) 860 { 861 struct wl1271 *wl = file->private_data; 862 struct wl12xx_vif *wlvif; 863 unsigned long value; 864 int ret; 865 866 ret = kstrtoul_from_user(user_buf, count, 10, &value); 867 if (ret < 0) { 868 wl1271_warning("illegal value in rx_streaming_write!"); 869 return -EINVAL; 870 } 871 872 /* valid values: 0, 10-100 */ 873 if (!(value == 0 || value == 1)) { 874 wl1271_warning("value is not in valid!"); 875 return -EINVAL; 876 } 877 878 mutex_lock(&wl->mutex); 879 880 wl->conf.rx_streaming.always = value; 881 882 ret = wl1271_ps_elp_wakeup(wl); 883 if (ret < 0) 884 goto out; 885 886 wl12xx_for_each_wlvif_sta(wl, wlvif) { 887 wl1271_recalc_rx_streaming(wl, wlvif); 888 } 889 890 wl1271_ps_elp_sleep(wl); 891 out: 892 mutex_unlock(&wl->mutex); 893 return count; 894 } 895 896 static ssize_t rx_streaming_always_read(struct file *file, 897 char __user *userbuf, 898 size_t count, loff_t *ppos) 899 { 900 struct wl1271 *wl = file->private_data; 901 return wl1271_format_buffer(userbuf, count, ppos, 902 "%d\n", wl->conf.rx_streaming.always); 903 } 904 905 static const struct file_operations rx_streaming_always_ops = { 906 .read = rx_streaming_always_read, 907 .write = rx_streaming_always_write, 908 .open = simple_open, 909 .llseek = default_llseek, 910 }; 911 912 static ssize_t beacon_filtering_write(struct file *file, 913 const char __user *user_buf, 914 size_t count, loff_t *ppos) 915 { 916 struct wl1271 *wl = file->private_data; 917 struct wl12xx_vif *wlvif; 918 char buf[10]; 919 size_t len; 920 unsigned long value; 921 int ret; 922 923 len = min(count, sizeof(buf) - 1); 924 if (copy_from_user(buf, user_buf, len)) 925 return -EFAULT; 926 buf[len] = '\0'; 927 928 ret = kstrtoul(buf, 0, &value); 929 if (ret < 0) { 930 wl1271_warning("illegal value for beacon_filtering!"); 931 return -EINVAL; 932 } 933 934 mutex_lock(&wl->mutex); 935 936 ret = wl1271_ps_elp_wakeup(wl); 937 if (ret < 0) 938 goto out; 939 940 wl12xx_for_each_wlvif(wl, wlvif) { 941 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value); 942 } 943 944 wl1271_ps_elp_sleep(wl); 945 out: 946 mutex_unlock(&wl->mutex); 947 return count; 948 } 949 950 static const struct file_operations beacon_filtering_ops = { 951 .write = beacon_filtering_write, 952 .open = simple_open, 953 .llseek = default_llseek, 954 }; 955 956 static ssize_t fw_stats_raw_read(struct file *file, 957 char __user *userbuf, 958 size_t count, loff_t *ppos) 959 { 960 struct wl1271 *wl = file->private_data; 961 962 wl1271_debugfs_update_stats(wl); 963 964 return simple_read_from_buffer(userbuf, count, ppos, 965 wl->stats.fw_stats, 966 wl->stats.fw_stats_len); 967 } 968 969 static const struct file_operations fw_stats_raw_ops = { 970 .read = fw_stats_raw_read, 971 .open = simple_open, 972 .llseek = default_llseek, 973 }; 974 975 static ssize_t sleep_auth_read(struct file *file, char __user *user_buf, 976 size_t count, loff_t *ppos) 977 { 978 struct wl1271 *wl = file->private_data; 979 980 return wl1271_format_buffer(user_buf, count, 981 ppos, "%d\n", 982 wl->sleep_auth); 983 } 984 985 static ssize_t sleep_auth_write(struct file *file, 986 const char __user *user_buf, 987 size_t count, loff_t *ppos) 988 { 989 struct wl1271 *wl = file->private_data; 990 unsigned long value; 991 int ret; 992 993 ret = kstrtoul_from_user(user_buf, count, 0, &value); 994 if (ret < 0) { 995 wl1271_warning("illegal value in sleep_auth"); 996 return -EINVAL; 997 } 998 999 if (value > WL1271_PSM_MAX) { 1000 wl1271_warning("sleep_auth must be between 0 and %d", 1001 WL1271_PSM_MAX); 1002 return -ERANGE; 1003 } 1004 1005 mutex_lock(&wl->mutex); 1006 1007 wl->conf.conn.sta_sleep_auth = value; 1008 1009 if (unlikely(wl->state != WLCORE_STATE_ON)) { 1010 /* this will show up on "read" in case we are off */ 1011 wl->sleep_auth = value; 1012 goto out; 1013 } 1014 1015 ret = wl1271_ps_elp_wakeup(wl); 1016 if (ret < 0) 1017 goto out; 1018 1019 ret = wl1271_acx_sleep_auth(wl, value); 1020 if (ret < 0) 1021 goto out_sleep; 1022 1023 out_sleep: 1024 wl1271_ps_elp_sleep(wl); 1025 out: 1026 mutex_unlock(&wl->mutex); 1027 return count; 1028 } 1029 1030 static const struct file_operations sleep_auth_ops = { 1031 .read = sleep_auth_read, 1032 .write = sleep_auth_write, 1033 .open = simple_open, 1034 .llseek = default_llseek, 1035 }; 1036 1037 static ssize_t dev_mem_read(struct file *file, 1038 char __user *user_buf, size_t count, 1039 loff_t *ppos) 1040 { 1041 struct wl1271 *wl = file->private_data; 1042 struct wlcore_partition_set part, old_part; 1043 size_t bytes = count; 1044 int ret; 1045 char *buf; 1046 1047 /* only requests of dword-aligned size and offset are supported */ 1048 if (bytes % 4) 1049 return -EINVAL; 1050 1051 if (*ppos % 4) 1052 return -EINVAL; 1053 1054 /* function should return in reasonable time */ 1055 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE); 1056 1057 if (bytes == 0) 1058 return -EINVAL; 1059 1060 memset(&part, 0, sizeof(part)); 1061 part.mem.start = file->f_pos; 1062 part.mem.size = bytes; 1063 1064 buf = kmalloc(bytes, GFP_KERNEL); 1065 if (!buf) 1066 return -ENOMEM; 1067 1068 mutex_lock(&wl->mutex); 1069 1070 if (unlikely(wl->state == WLCORE_STATE_OFF)) { 1071 ret = -EFAULT; 1072 goto skip_read; 1073 } 1074 1075 /* 1076 * Don't fail if elp_wakeup returns an error, so the device's memory 1077 * could be read even if the FW crashed 1078 */ 1079 wl1271_ps_elp_wakeup(wl); 1080 1081 /* store current partition and switch partition */ 1082 memcpy(&old_part, &wl->curr_part, sizeof(old_part)); 1083 ret = wlcore_set_partition(wl, &part); 1084 if (ret < 0) 1085 goto part_err; 1086 1087 ret = wlcore_raw_read(wl, 0, buf, bytes, false); 1088 if (ret < 0) 1089 goto read_err; 1090 1091 read_err: 1092 /* recover partition */ 1093 ret = wlcore_set_partition(wl, &old_part); 1094 if (ret < 0) 1095 goto part_err; 1096 1097 part_err: 1098 wl1271_ps_elp_sleep(wl); 1099 1100 skip_read: 1101 mutex_unlock(&wl->mutex); 1102 1103 if (ret == 0) { 1104 ret = copy_to_user(user_buf, buf, bytes); 1105 if (ret < bytes) { 1106 bytes -= ret; 1107 *ppos += bytes; 1108 ret = 0; 1109 } else { 1110 ret = -EFAULT; 1111 } 1112 } 1113 1114 kfree(buf); 1115 1116 return ((ret == 0) ? bytes : ret); 1117 } 1118 1119 static ssize_t dev_mem_write(struct file *file, const char __user *user_buf, 1120 size_t count, loff_t *ppos) 1121 { 1122 struct wl1271 *wl = file->private_data; 1123 struct wlcore_partition_set part, old_part; 1124 size_t bytes = count; 1125 int ret; 1126 char *buf; 1127 1128 /* only requests of dword-aligned size and offset are supported */ 1129 if (bytes % 4) 1130 return -EINVAL; 1131 1132 if (*ppos % 4) 1133 return -EINVAL; 1134 1135 /* function should return in reasonable time */ 1136 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE); 1137 1138 if (bytes == 0) 1139 return -EINVAL; 1140 1141 memset(&part, 0, sizeof(part)); 1142 part.mem.start = file->f_pos; 1143 part.mem.size = bytes; 1144 1145 buf = kmalloc(bytes, GFP_KERNEL); 1146 if (!buf) 1147 return -ENOMEM; 1148 1149 ret = copy_from_user(buf, user_buf, bytes); 1150 if (ret) { 1151 ret = -EFAULT; 1152 goto err_out; 1153 } 1154 1155 mutex_lock(&wl->mutex); 1156 1157 if (unlikely(wl->state == WLCORE_STATE_OFF)) { 1158 ret = -EFAULT; 1159 goto skip_write; 1160 } 1161 1162 /* 1163 * Don't fail if elp_wakeup returns an error, so the device's memory 1164 * could be read even if the FW crashed 1165 */ 1166 wl1271_ps_elp_wakeup(wl); 1167 1168 /* store current partition and switch partition */ 1169 memcpy(&old_part, &wl->curr_part, sizeof(old_part)); 1170 ret = wlcore_set_partition(wl, &part); 1171 if (ret < 0) 1172 goto part_err; 1173 1174 ret = wlcore_raw_write(wl, 0, buf, bytes, false); 1175 if (ret < 0) 1176 goto write_err; 1177 1178 write_err: 1179 /* recover partition */ 1180 ret = wlcore_set_partition(wl, &old_part); 1181 if (ret < 0) 1182 goto part_err; 1183 1184 part_err: 1185 wl1271_ps_elp_sleep(wl); 1186 1187 skip_write: 1188 mutex_unlock(&wl->mutex); 1189 1190 if (ret == 0) 1191 *ppos += bytes; 1192 1193 err_out: 1194 kfree(buf); 1195 1196 return ((ret == 0) ? bytes : ret); 1197 } 1198 1199 static loff_t dev_mem_seek(struct file *file, loff_t offset, int orig) 1200 { 1201 loff_t ret; 1202 1203 /* only requests of dword-aligned size and offset are supported */ 1204 if (offset % 4) 1205 return -EINVAL; 1206 1207 switch (orig) { 1208 case SEEK_SET: 1209 file->f_pos = offset; 1210 ret = file->f_pos; 1211 break; 1212 case SEEK_CUR: 1213 file->f_pos += offset; 1214 ret = file->f_pos; 1215 break; 1216 default: 1217 ret = -EINVAL; 1218 } 1219 1220 return ret; 1221 } 1222 1223 static const struct file_operations dev_mem_ops = { 1224 .open = simple_open, 1225 .read = dev_mem_read, 1226 .write = dev_mem_write, 1227 .llseek = dev_mem_seek, 1228 }; 1229 1230 static int wl1271_debugfs_add_files(struct wl1271 *wl, 1231 struct dentry *rootdir) 1232 { 1233 int ret = 0; 1234 struct dentry *entry, *streaming; 1235 1236 DEBUGFS_ADD(tx_queue_len, rootdir); 1237 DEBUGFS_ADD(retry_count, rootdir); 1238 DEBUGFS_ADD(excessive_retries, rootdir); 1239 1240 DEBUGFS_ADD(gpio_power, rootdir); 1241 DEBUGFS_ADD(start_recovery, rootdir); 1242 DEBUGFS_ADD(driver_state, rootdir); 1243 DEBUGFS_ADD(vifs_state, rootdir); 1244 DEBUGFS_ADD(dtim_interval, rootdir); 1245 DEBUGFS_ADD(suspend_dtim_interval, rootdir); 1246 DEBUGFS_ADD(beacon_interval, rootdir); 1247 DEBUGFS_ADD(beacon_filtering, rootdir); 1248 DEBUGFS_ADD(dynamic_ps_timeout, rootdir); 1249 DEBUGFS_ADD(forced_ps, rootdir); 1250 DEBUGFS_ADD(split_scan_timeout, rootdir); 1251 DEBUGFS_ADD(irq_pkt_threshold, rootdir); 1252 DEBUGFS_ADD(irq_blk_threshold, rootdir); 1253 DEBUGFS_ADD(irq_timeout, rootdir); 1254 DEBUGFS_ADD(fw_stats_raw, rootdir); 1255 DEBUGFS_ADD(sleep_auth, rootdir); 1256 1257 streaming = debugfs_create_dir("rx_streaming", rootdir); 1258 if (!streaming || IS_ERR(streaming)) 1259 goto err; 1260 1261 DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming); 1262 DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming); 1263 1264 DEBUGFS_ADD_PREFIX(dev, mem, rootdir); 1265 1266 return 0; 1267 1268 err: 1269 if (IS_ERR(entry)) 1270 ret = PTR_ERR(entry); 1271 else 1272 ret = -ENOMEM; 1273 1274 return ret; 1275 } 1276 1277 void wl1271_debugfs_reset(struct wl1271 *wl) 1278 { 1279 if (!wl->stats.fw_stats) 1280 return; 1281 1282 memset(wl->stats.fw_stats, 0, wl->stats.fw_stats_len); 1283 wl->stats.retry_count = 0; 1284 wl->stats.excessive_retries = 0; 1285 } 1286 1287 int wl1271_debugfs_init(struct wl1271 *wl) 1288 { 1289 int ret; 1290 struct dentry *rootdir; 1291 1292 rootdir = debugfs_create_dir(KBUILD_MODNAME, 1293 wl->hw->wiphy->debugfsdir); 1294 1295 if (IS_ERR(rootdir)) { 1296 ret = PTR_ERR(rootdir); 1297 goto out; 1298 } 1299 1300 wl->stats.fw_stats = kzalloc(wl->stats.fw_stats_len, GFP_KERNEL); 1301 if (!wl->stats.fw_stats) { 1302 ret = -ENOMEM; 1303 goto out_remove; 1304 } 1305 1306 wl->stats.fw_stats_update = jiffies; 1307 1308 ret = wl1271_debugfs_add_files(wl, rootdir); 1309 if (ret < 0) 1310 goto out_exit; 1311 1312 ret = wlcore_debugfs_init(wl, rootdir); 1313 if (ret < 0) 1314 goto out_exit; 1315 1316 goto out; 1317 1318 out_exit: 1319 wl1271_debugfs_exit(wl); 1320 1321 out_remove: 1322 debugfs_remove_recursive(rootdir); 1323 1324 out: 1325 return ret; 1326 } 1327 1328 void wl1271_debugfs_exit(struct wl1271 *wl) 1329 { 1330 kfree(wl->stats.fw_stats); 1331 wl->stats.fw_stats = NULL; 1332 } 1333