1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * This file is part of wl1271 4 * 5 * Copyright (C) 2009 Nokia Corporation 6 * 7 * Contact: Luciano Coelho <luciano.coelho@nokia.com> 8 */ 9 10#include "debugfs.h" 11 12#include <linux/skbuff.h> 13#include <linux/slab.h> 14#include <linux/module.h> 15#include <linux/pm_runtime.h> 16 17#include "wlcore.h" 18#include "debug.h" 19#include "acx.h" 20#include "ps.h" 21#include "io.h" 22#include "tx.h" 23#include "hw_ops.h" 24 25/* ms */ 26#define WL1271_DEBUGFS_STATS_LIFETIME 1000 27 28#define WLCORE_MAX_BLOCK_SIZE ((size_t)(4*PAGE_SIZE)) 29 30/* debugfs macros idea from mac80211 */ 31int wl1271_format_buffer(char __user *userbuf, size_t count, 32 loff_t *ppos, char *fmt, ...) 33{ 34 va_list args; 35 char buf[DEBUGFS_FORMAT_BUFFER_SIZE]; 36 int res; 37 38 va_start(args, fmt); 39 res = vscnprintf(buf, sizeof(buf), fmt, args); 40 va_end(args); 41 42 return simple_read_from_buffer(userbuf, count, ppos, buf, res); 43} 44EXPORT_SYMBOL_GPL(wl1271_format_buffer); 45 46void wl1271_debugfs_update_stats(struct wl1271 *wl) 47{ 48 int ret; 49 50 mutex_lock(&wl->mutex); 51 52 if (unlikely(wl->state != WLCORE_STATE_ON)) 53 goto out; 54 55 ret = pm_runtime_resume_and_get(wl->dev); 56 if (ret < 0) 57 goto out; 58 59 if (!wl->plt && 60 time_after(jiffies, wl->stats.fw_stats_update + 61 msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) { 62 wl1271_acx_statistics(wl, wl->stats.fw_stats); 63 wl->stats.fw_stats_update = jiffies; 64 } 65 66 pm_runtime_mark_last_busy(wl->dev); 67 pm_runtime_put_autosuspend(wl->dev); 68 69out: 70 mutex_unlock(&wl->mutex); 71} 72EXPORT_SYMBOL_GPL(wl1271_debugfs_update_stats); 73 74DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count); 75DEBUGFS_READONLY_FILE(excessive_retries, "%u", 76 wl->stats.excessive_retries); 77 78static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf, 79 size_t count, loff_t *ppos) 80{ 81 struct wl1271 *wl = file->private_data; 82 u32 queue_len; 83 char buf[20]; 84 int res; 85 86 queue_len = wl1271_tx_total_queue_count(wl); 87 88 res = scnprintf(buf, sizeof(buf), "%u\n", queue_len); 89 return simple_read_from_buffer(userbuf, count, ppos, buf, res); 90} 91 92static const struct file_operations tx_queue_len_ops = { 93 .read = tx_queue_len_read, 94 .open = simple_open, 95 .llseek = default_llseek, 96}; 97 98static void chip_op_handler(struct wl1271 *wl, unsigned long value, 99 void *arg) 100{ 101 int ret; 102 int (*chip_op) (struct wl1271 *wl); 103 104 if (!arg) { 105 wl1271_warning("debugfs chip_op_handler with no callback"); 106 return; 107 } 108 109 ret = pm_runtime_resume_and_get(wl->dev); 110 if (ret < 0) 111 return; 112 113 chip_op = arg; 114 chip_op(wl); 115 116 pm_runtime_mark_last_busy(wl->dev); 117 pm_runtime_put_autosuspend(wl->dev); 118} 119 120#define WL12XX_CONF_DEBUGFS(param, conf_sub_struct, \ 121 min_val, max_val, write_handler_locked, \ 122 write_handler_arg) \ 123 static ssize_t param##_read(struct file *file, \ 124 char __user *user_buf, \ 125 size_t count, loff_t *ppos) \ 126 { \ 127 struct wl1271 *wl = file->private_data; \ 128 return wl1271_format_buffer(user_buf, count, \ 129 ppos, "%d\n", \ 130 wl->conf.conf_sub_struct.param); \ 131 } \ 132 \ 133 static ssize_t param##_write(struct file *file, \ 134 const char __user *user_buf, \ 135 size_t count, loff_t *ppos) \ 136 { \ 137 struct wl1271 *wl = file->private_data; \ 138 unsigned long value; \ 139 int ret; \ 140 \ 141 ret = kstrtoul_from_user(user_buf, count, 10, &value); \ 142 if (ret < 0) { \ 143 wl1271_warning("illegal value for " #param); \ 144 return -EINVAL; \ 145 } \ 146 \ 147 if (value < min_val || value > max_val) { \ 148 wl1271_warning(#param " is not in valid range"); \ 149 return -ERANGE; \ 150 } \ 151 \ 152 mutex_lock(&wl->mutex); \ 153 wl->conf.conf_sub_struct.param = value; \ 154 \ 155 write_handler_locked(wl, value, write_handler_arg); \ 156 \ 157 mutex_unlock(&wl->mutex); \ 158 return count; \ 159 } \ 160 \ 161 static const struct file_operations param##_ops = { \ 162 .read = param##_read, \ 163 .write = param##_write, \ 164 .open = simple_open, \ 165 .llseek = default_llseek, \ 166 }; 167 168WL12XX_CONF_DEBUGFS(irq_pkt_threshold, rx, 0, 65535, 169 chip_op_handler, wl1271_acx_init_rx_interrupt) 170WL12XX_CONF_DEBUGFS(irq_blk_threshold, rx, 0, 65535, 171 chip_op_handler, wl1271_acx_init_rx_interrupt) 172WL12XX_CONF_DEBUGFS(irq_timeout, rx, 0, 100, 173 chip_op_handler, wl1271_acx_init_rx_interrupt) 174 175static ssize_t gpio_power_read(struct file *file, char __user *user_buf, 176 size_t count, loff_t *ppos) 177{ 178 struct wl1271 *wl = file->private_data; 179 bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags); 180 181 int res; 182 char buf[10]; 183 184 res = scnprintf(buf, sizeof(buf), "%d\n", state); 185 186 return simple_read_from_buffer(user_buf, count, ppos, buf, res); 187} 188 189static ssize_t gpio_power_write(struct file *file, 190 const char __user *user_buf, 191 size_t count, loff_t *ppos) 192{ 193 struct wl1271 *wl = file->private_data; 194 unsigned long value; 195 int ret; 196 197 ret = kstrtoul_from_user(user_buf, count, 10, &value); 198 if (ret < 0) { 199 wl1271_warning("illegal value in gpio_power"); 200 return -EINVAL; 201 } 202 203 mutex_lock(&wl->mutex); 204 205 if (value) 206 wl1271_power_on(wl); 207 else 208 wl1271_power_off(wl); 209 210 mutex_unlock(&wl->mutex); 211 return count; 212} 213 214static const struct file_operations gpio_power_ops = { 215 .read = gpio_power_read, 216 .write = gpio_power_write, 217 .open = simple_open, 218 .llseek = default_llseek, 219}; 220 221static ssize_t start_recovery_write(struct file *file, 222 const char __user *user_buf, 223 size_t count, loff_t *ppos) 224{ 225 struct wl1271 *wl = file->private_data; 226 227 mutex_lock(&wl->mutex); 228 wl12xx_queue_recovery_work(wl); 229 mutex_unlock(&wl->mutex); 230 231 return count; 232} 233 234static const struct file_operations start_recovery_ops = { 235 .write = start_recovery_write, 236 .open = simple_open, 237 .llseek = default_llseek, 238}; 239 240static ssize_t dynamic_ps_timeout_read(struct file *file, char __user *user_buf, 241 size_t count, loff_t *ppos) 242{ 243 struct wl1271 *wl = file->private_data; 244 245 return wl1271_format_buffer(user_buf, count, 246 ppos, "%d\n", 247 wl->conf.conn.dynamic_ps_timeout); 248} 249 250static ssize_t dynamic_ps_timeout_write(struct file *file, 251 const char __user *user_buf, 252 size_t count, loff_t *ppos) 253{ 254 struct wl1271 *wl = file->private_data; 255 struct wl12xx_vif *wlvif; 256 unsigned long value; 257 int ret; 258 259 ret = kstrtoul_from_user(user_buf, count, 10, &value); 260 if (ret < 0) { 261 wl1271_warning("illegal value in dynamic_ps"); 262 return -EINVAL; 263 } 264 265 if (value < 1 || value > 65535) { 266 wl1271_warning("dynamic_ps_timeout is not in valid range"); 267 return -ERANGE; 268 } 269 270 mutex_lock(&wl->mutex); 271 272 wl->conf.conn.dynamic_ps_timeout = value; 273 274 if (unlikely(wl->state != WLCORE_STATE_ON)) 275 goto out; 276 277 ret = pm_runtime_resume_and_get(wl->dev); 278 if (ret < 0) 279 goto out; 280 281 /* In case we're already in PSM, trigger it again to set new timeout 282 * immediately without waiting for re-association 283 */ 284 285 wl12xx_for_each_wlvif_sta(wl, wlvif) { 286 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) 287 wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE); 288 } 289 290 pm_runtime_mark_last_busy(wl->dev); 291 pm_runtime_put_autosuspend(wl->dev); 292 293out: 294 mutex_unlock(&wl->mutex); 295 return count; 296} 297 298static const struct file_operations dynamic_ps_timeout_ops = { 299 .read = dynamic_ps_timeout_read, 300 .write = dynamic_ps_timeout_write, 301 .open = simple_open, 302 .llseek = default_llseek, 303}; 304 305static ssize_t forced_ps_read(struct file *file, char __user *user_buf, 306 size_t count, loff_t *ppos) 307{ 308 struct wl1271 *wl = file->private_data; 309 310 return wl1271_format_buffer(user_buf, count, 311 ppos, "%d\n", 312 wl->conf.conn.forced_ps); 313} 314 315static ssize_t forced_ps_write(struct file *file, 316 const char __user *user_buf, 317 size_t count, loff_t *ppos) 318{ 319 struct wl1271 *wl = file->private_data; 320 struct wl12xx_vif *wlvif; 321 unsigned long value; 322 int ret, ps_mode; 323 324 ret = kstrtoul_from_user(user_buf, count, 10, &value); 325 if (ret < 0) { 326 wl1271_warning("illegal value in forced_ps"); 327 return -EINVAL; 328 } 329 330 if (value != 1 && value != 0) { 331 wl1271_warning("forced_ps should be either 0 or 1"); 332 return -ERANGE; 333 } 334 335 mutex_lock(&wl->mutex); 336 337 if (wl->conf.conn.forced_ps == value) 338 goto out; 339 340 wl->conf.conn.forced_ps = value; 341 342 if (unlikely(wl->state != WLCORE_STATE_ON)) 343 goto out; 344 345 ret = pm_runtime_resume_and_get(wl->dev); 346 if (ret < 0) 347 goto out; 348 349 /* In case we're already in PSM, trigger it again to switch mode 350 * immediately without waiting for re-association 351 */ 352 353 ps_mode = value ? STATION_POWER_SAVE_MODE : STATION_AUTO_PS_MODE; 354 355 wl12xx_for_each_wlvif_sta(wl, wlvif) { 356 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) 357 wl1271_ps_set_mode(wl, wlvif, ps_mode); 358 } 359 360 pm_runtime_mark_last_busy(wl->dev); 361 pm_runtime_put_autosuspend(wl->dev); 362 363out: 364 mutex_unlock(&wl->mutex); 365 return count; 366} 367 368static const struct file_operations forced_ps_ops = { 369 .read = forced_ps_read, 370 .write = forced_ps_write, 371 .open = simple_open, 372 .llseek = default_llseek, 373}; 374 375static ssize_t split_scan_timeout_read(struct file *file, char __user *user_buf, 376 size_t count, loff_t *ppos) 377{ 378 struct wl1271 *wl = file->private_data; 379 380 return wl1271_format_buffer(user_buf, count, 381 ppos, "%d\n", 382 wl->conf.scan.split_scan_timeout / 1000); 383} 384 385static ssize_t split_scan_timeout_write(struct file *file, 386 const char __user *user_buf, 387 size_t count, loff_t *ppos) 388{ 389 struct wl1271 *wl = file->private_data; 390 unsigned long value; 391 int ret; 392 393 ret = kstrtoul_from_user(user_buf, count, 10, &value); 394 if (ret < 0) { 395 wl1271_warning("illegal value in split_scan_timeout"); 396 return -EINVAL; 397 } 398 399 if (value == 0) 400 wl1271_info("split scan will be disabled"); 401 402 mutex_lock(&wl->mutex); 403 404 wl->conf.scan.split_scan_timeout = value * 1000; 405 406 mutex_unlock(&wl->mutex); 407 return count; 408} 409 410static const struct file_operations split_scan_timeout_ops = { 411 .read = split_scan_timeout_read, 412 .write = split_scan_timeout_write, 413 .open = simple_open, 414 .llseek = default_llseek, 415}; 416 417static ssize_t driver_state_read(struct file *file, char __user *user_buf, 418 size_t count, loff_t *ppos) 419{ 420 struct wl1271 *wl = file->private_data; 421 int res = 0; 422 ssize_t ret; 423 char *buf; 424 struct wl12xx_vif *wlvif; 425 426#define DRIVER_STATE_BUF_LEN 1024 427 428 buf = kmalloc(DRIVER_STATE_BUF_LEN, GFP_KERNEL); 429 if (!buf) 430 return -ENOMEM; 431 432 mutex_lock(&wl->mutex); 433 434#define DRIVER_STATE_PRINT(x, fmt) \ 435 (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\ 436 #x " = " fmt "\n", wl->x)) 437 438#define DRIVER_STATE_PRINT_GENERIC(x, fmt, args...) \ 439 (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\ 440 #x " = " fmt "\n", args)) 441 442#define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld") 443#define DRIVER_STATE_PRINT_INT(x) DRIVER_STATE_PRINT(x, "%d") 444#define DRIVER_STATE_PRINT_STR(x) DRIVER_STATE_PRINT(x, "%s") 445#define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx") 446#define DRIVER_STATE_PRINT_HEX(x) DRIVER_STATE_PRINT(x, "0x%x") 447 448 wl12xx_for_each_wlvif_sta(wl, wlvif) { 449 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags)) 450 continue; 451 452 DRIVER_STATE_PRINT_GENERIC(channel, "%d (%s)", wlvif->channel, 453 wlvif->p2p ? "P2P-CL" : "STA"); 454 } 455 456 wl12xx_for_each_wlvif_ap(wl, wlvif) 457 DRIVER_STATE_PRINT_GENERIC(channel, "%d (%s)", wlvif->channel, 458 wlvif->p2p ? "P2P-GO" : "AP"); 459 460 DRIVER_STATE_PRINT_INT(tx_blocks_available); 461 DRIVER_STATE_PRINT_INT(tx_allocated_blocks); 462 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]); 463 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]); 464 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]); 465 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]); 466 DRIVER_STATE_PRINT_INT(tx_frames_cnt); 467 DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]); 468 DRIVER_STATE_PRINT_INT(tx_queue_count[0]); 469 DRIVER_STATE_PRINT_INT(tx_queue_count[1]); 470 DRIVER_STATE_PRINT_INT(tx_queue_count[2]); 471 DRIVER_STATE_PRINT_INT(tx_queue_count[3]); 472 DRIVER_STATE_PRINT_INT(tx_packets_count); 473 DRIVER_STATE_PRINT_INT(tx_results_count); 474 DRIVER_STATE_PRINT_LHEX(flags); 475 DRIVER_STATE_PRINT_INT(tx_blocks_freed); 476 DRIVER_STATE_PRINT_INT(rx_counter); 477 DRIVER_STATE_PRINT_INT(state); 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_LHEX(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(irq_flags); 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 510static const struct file_operations driver_state_ops = { 511 .read = driver_state_read, 512 .open = simple_open, 513 .llseek = default_llseek, 514}; 515 516static 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 620static const struct file_operations vifs_state_ops = { 621 .read = vifs_state_read, 622 .open = simple_open, 623 .llseek = default_llseek, 624}; 625 626static 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 641static 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 677static 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 686static 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 702static 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 735static 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 742static 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 757static 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 793static 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 800static 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 = pm_runtime_resume_and_get(wl->dev); 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 pm_runtime_mark_last_busy(wl->dev); 834 pm_runtime_put_autosuspend(wl->dev); 835out: 836 mutex_unlock(&wl->mutex); 837 return count; 838} 839 840static ssize_t rx_streaming_interval_read(struct file *file, 841 char __user *userbuf, 842 size_t count, loff_t *ppos) 843{ 844 struct wl1271 *wl = file->private_data; 845 return wl1271_format_buffer(userbuf, count, ppos, 846 "%d\n", wl->conf.rx_streaming.interval); 847} 848 849static const struct file_operations rx_streaming_interval_ops = { 850 .read = rx_streaming_interval_read, 851 .write = rx_streaming_interval_write, 852 .open = simple_open, 853 .llseek = default_llseek, 854}; 855 856static ssize_t rx_streaming_always_write(struct file *file, 857 const char __user *user_buf, 858 size_t count, loff_t *ppos) 859{ 860 struct wl1271 *wl = file->private_data; 861 struct wl12xx_vif *wlvif; 862 unsigned long value; 863 int ret; 864 865 ret = kstrtoul_from_user(user_buf, count, 10, &value); 866 if (ret < 0) { 867 wl1271_warning("illegal value in rx_streaming_write!"); 868 return -EINVAL; 869 } 870 871 /* valid values: 0, 10-100 */ 872 if (!(value == 0 || value == 1)) { 873 wl1271_warning("value is not in valid!"); 874 return -EINVAL; 875 } 876 877 mutex_lock(&wl->mutex); 878 879 wl->conf.rx_streaming.always = value; 880 881 ret = pm_runtime_resume_and_get(wl->dev); 882 if (ret < 0) 883 goto out; 884 885 wl12xx_for_each_wlvif_sta(wl, wlvif) { 886 wl1271_recalc_rx_streaming(wl, wlvif); 887 } 888 889 pm_runtime_mark_last_busy(wl->dev); 890 pm_runtime_put_autosuspend(wl->dev); 891out: 892 mutex_unlock(&wl->mutex); 893 return count; 894} 895 896static 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 905static 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 912static 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 unsigned long value; 919 int ret; 920 921 ret = kstrtoul_from_user(user_buf, count, 0, &value); 922 if (ret < 0) { 923 wl1271_warning("illegal value for beacon_filtering!"); 924 return -EINVAL; 925 } 926 927 mutex_lock(&wl->mutex); 928 929 ret = pm_runtime_resume_and_get(wl->dev); 930 if (ret < 0) 931 goto out; 932 933 wl12xx_for_each_wlvif(wl, wlvif) { 934 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value); 935 } 936 937 pm_runtime_mark_last_busy(wl->dev); 938 pm_runtime_put_autosuspend(wl->dev); 939out: 940 mutex_unlock(&wl->mutex); 941 return count; 942} 943 944static const struct file_operations beacon_filtering_ops = { 945 .write = beacon_filtering_write, 946 .open = simple_open, 947 .llseek = default_llseek, 948}; 949 950static ssize_t fw_stats_raw_read(struct file *file, 951 char __user *userbuf, 952 size_t count, loff_t *ppos) 953{ 954 struct wl1271 *wl = file->private_data; 955 956 wl1271_debugfs_update_stats(wl); 957 958 return simple_read_from_buffer(userbuf, count, ppos, 959 wl->stats.fw_stats, 960 wl->stats.fw_stats_len); 961} 962 963static const struct file_operations fw_stats_raw_ops = { 964 .read = fw_stats_raw_read, 965 .open = simple_open, 966 .llseek = default_llseek, 967}; 968 969static ssize_t sleep_auth_read(struct file *file, char __user *user_buf, 970 size_t count, loff_t *ppos) 971{ 972 struct wl1271 *wl = file->private_data; 973 974 return wl1271_format_buffer(user_buf, count, 975 ppos, "%d\n", 976 wl->sleep_auth); 977} 978 979static ssize_t sleep_auth_write(struct file *file, 980 const char __user *user_buf, 981 size_t count, loff_t *ppos) 982{ 983 struct wl1271 *wl = file->private_data; 984 unsigned long value; 985 int ret; 986 987 ret = kstrtoul_from_user(user_buf, count, 0, &value); 988 if (ret < 0) { 989 wl1271_warning("illegal value in sleep_auth"); 990 return -EINVAL; 991 } 992 993 if (value > WL1271_PSM_MAX) { 994 wl1271_warning("sleep_auth must be between 0 and %d", 995 WL1271_PSM_MAX); 996 return -ERANGE; 997 } 998 999 mutex_lock(&wl->mutex); 1000 1001 wl->conf.conn.sta_sleep_auth = value; 1002 1003 if (unlikely(wl->state != WLCORE_STATE_ON)) { 1004 /* this will show up on "read" in case we are off */ 1005 wl->sleep_auth = value; 1006 goto out; 1007 } 1008 1009 ret = pm_runtime_resume_and_get(wl->dev); 1010 if (ret < 0) 1011 goto out; 1012 1013 ret = wl1271_acx_sleep_auth(wl, value); 1014 if (ret < 0) 1015 goto out_sleep; 1016 1017out_sleep: 1018 pm_runtime_mark_last_busy(wl->dev); 1019 pm_runtime_put_autosuspend(wl->dev); 1020out: 1021 mutex_unlock(&wl->mutex); 1022 return count; 1023} 1024 1025static const struct file_operations sleep_auth_ops = { 1026 .read = sleep_auth_read, 1027 .write = sleep_auth_write, 1028 .open = simple_open, 1029 .llseek = default_llseek, 1030}; 1031 1032static ssize_t dev_mem_read(struct file *file, 1033 char __user *user_buf, size_t count, 1034 loff_t *ppos) 1035{ 1036 struct wl1271 *wl = file->private_data; 1037 struct wlcore_partition_set part, old_part; 1038 size_t bytes = count; 1039 int ret; 1040 char *buf; 1041 1042 /* only requests of dword-aligned size and offset are supported */ 1043 if (bytes % 4) 1044 return -EINVAL; 1045 1046 if (*ppos % 4) 1047 return -EINVAL; 1048 1049 /* function should return in reasonable time */ 1050 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE); 1051 1052 if (bytes == 0) 1053 return -EINVAL; 1054 1055 memset(&part, 0, sizeof(part)); 1056 part.mem.start = *ppos; 1057 part.mem.size = bytes; 1058 1059 buf = kmalloc(bytes, GFP_KERNEL); 1060 if (!buf) 1061 return -ENOMEM; 1062 1063 mutex_lock(&wl->mutex); 1064 1065 if (unlikely(wl->state == WLCORE_STATE_OFF)) { 1066 ret = -EFAULT; 1067 goto skip_read; 1068 } 1069 1070 /* 1071 * Don't fail if elp_wakeup returns an error, so the device's memory 1072 * could be read even if the FW crashed 1073 */ 1074 pm_runtime_get_sync(wl->dev); 1075 1076 /* store current partition and switch partition */ 1077 memcpy(&old_part, &wl->curr_part, sizeof(old_part)); 1078 ret = wlcore_set_partition(wl, &part); 1079 if (ret < 0) 1080 goto part_err; 1081 1082 ret = wlcore_raw_read(wl, 0, buf, bytes, false); 1083 if (ret < 0) 1084 goto read_err; 1085 1086read_err: 1087 /* recover partition */ 1088 ret = wlcore_set_partition(wl, &old_part); 1089 if (ret < 0) 1090 goto part_err; 1091 1092part_err: 1093 pm_runtime_mark_last_busy(wl->dev); 1094 pm_runtime_put_autosuspend(wl->dev); 1095 1096skip_read: 1097 mutex_unlock(&wl->mutex); 1098 1099 if (ret == 0) { 1100 ret = copy_to_user(user_buf, buf, bytes); 1101 if (ret < bytes) { 1102 bytes -= ret; 1103 *ppos += bytes; 1104 ret = 0; 1105 } else { 1106 ret = -EFAULT; 1107 } 1108 } 1109 1110 kfree(buf); 1111 1112 return ((ret == 0) ? bytes : ret); 1113} 1114 1115static ssize_t dev_mem_write(struct file *file, const char __user *user_buf, 1116 size_t count, loff_t *ppos) 1117{ 1118 struct wl1271 *wl = file->private_data; 1119 struct wlcore_partition_set part, old_part; 1120 size_t bytes = count; 1121 int ret; 1122 char *buf; 1123 1124 /* only requests of dword-aligned size and offset are supported */ 1125 if (bytes % 4) 1126 return -EINVAL; 1127 1128 if (*ppos % 4) 1129 return -EINVAL; 1130 1131 /* function should return in reasonable time */ 1132 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE); 1133 1134 if (bytes == 0) 1135 return -EINVAL; 1136 1137 memset(&part, 0, sizeof(part)); 1138 part.mem.start = *ppos; 1139 part.mem.size = bytes; 1140 1141 buf = memdup_user(user_buf, bytes); 1142 if (IS_ERR(buf)) 1143 return PTR_ERR(buf); 1144 1145 mutex_lock(&wl->mutex); 1146 1147 if (unlikely(wl->state == WLCORE_STATE_OFF)) { 1148 ret = -EFAULT; 1149 goto skip_write; 1150 } 1151 1152 /* 1153 * Don't fail if elp_wakeup returns an error, so the device's memory 1154 * could be read even if the FW crashed 1155 */ 1156 pm_runtime_get_sync(wl->dev); 1157 1158 /* store current partition and switch partition */ 1159 memcpy(&old_part, &wl->curr_part, sizeof(old_part)); 1160 ret = wlcore_set_partition(wl, &part); 1161 if (ret < 0) 1162 goto part_err; 1163 1164 ret = wlcore_raw_write(wl, 0, buf, bytes, false); 1165 if (ret < 0) 1166 goto write_err; 1167 1168write_err: 1169 /* recover partition */ 1170 ret = wlcore_set_partition(wl, &old_part); 1171 if (ret < 0) 1172 goto part_err; 1173 1174part_err: 1175 pm_runtime_mark_last_busy(wl->dev); 1176 pm_runtime_put_autosuspend(wl->dev); 1177 1178skip_write: 1179 mutex_unlock(&wl->mutex); 1180 1181 if (ret == 0) 1182 *ppos += bytes; 1183 1184 kfree(buf); 1185 1186 return ((ret == 0) ? bytes : ret); 1187} 1188 1189static loff_t dev_mem_seek(struct file *file, loff_t offset, int orig) 1190{ 1191 /* only requests of dword-aligned size and offset are supported */ 1192 if (offset % 4) 1193 return -EINVAL; 1194 1195 return no_seek_end_llseek(file, offset, orig); 1196} 1197 1198static const struct file_operations dev_mem_ops = { 1199 .open = simple_open, 1200 .read = dev_mem_read, 1201 .write = dev_mem_write, 1202 .llseek = dev_mem_seek, 1203}; 1204 1205static ssize_t fw_logger_read(struct file *file, char __user *user_buf, 1206 size_t count, loff_t *ppos) 1207{ 1208 struct wl1271 *wl = file->private_data; 1209 1210 return wl1271_format_buffer(user_buf, count, 1211 ppos, "%d\n", 1212 wl->conf.fwlog.output); 1213} 1214 1215static ssize_t fw_logger_write(struct file *file, 1216 const char __user *user_buf, 1217 size_t count, loff_t *ppos) 1218{ 1219 struct wl1271 *wl = file->private_data; 1220 unsigned long value; 1221 int ret; 1222 1223 ret = kstrtoul_from_user(user_buf, count, 0, &value); 1224 if (ret < 0) { 1225 wl1271_warning("illegal value in fw_logger"); 1226 return -EINVAL; 1227 } 1228 1229 if ((value > 2) || (value == 0)) { 1230 wl1271_warning("fw_logger value must be 1-UART 2-SDIO"); 1231 return -ERANGE; 1232 } 1233 1234 if (wl->conf.fwlog.output == 0) { 1235 wl1271_warning("invalid operation - fw logger disabled by default, please change mode via wlconf"); 1236 return -EINVAL; 1237 } 1238 1239 mutex_lock(&wl->mutex); 1240 ret = pm_runtime_resume_and_get(wl->dev); 1241 if (ret < 0) { 1242 count = ret; 1243 goto out; 1244 } 1245 1246 wl->conf.fwlog.output = value; 1247 1248 ret = wl12xx_cmd_config_fwlog(wl); 1249 1250 pm_runtime_mark_last_busy(wl->dev); 1251 pm_runtime_put_autosuspend(wl->dev); 1252 1253out: 1254 mutex_unlock(&wl->mutex); 1255 return count; 1256} 1257 1258static const struct file_operations fw_logger_ops = { 1259 .open = simple_open, 1260 .read = fw_logger_read, 1261 .write = fw_logger_write, 1262 .llseek = default_llseek, 1263}; 1264 1265static void wl1271_debugfs_add_files(struct wl1271 *wl, 1266 struct dentry *rootdir) 1267{ 1268 struct dentry *streaming; 1269 1270 DEBUGFS_ADD(tx_queue_len, rootdir); 1271 DEBUGFS_ADD(retry_count, rootdir); 1272 DEBUGFS_ADD(excessive_retries, rootdir); 1273 1274 DEBUGFS_ADD(gpio_power, rootdir); 1275 DEBUGFS_ADD(start_recovery, rootdir); 1276 DEBUGFS_ADD(driver_state, rootdir); 1277 DEBUGFS_ADD(vifs_state, rootdir); 1278 DEBUGFS_ADD(dtim_interval, rootdir); 1279 DEBUGFS_ADD(suspend_dtim_interval, rootdir); 1280 DEBUGFS_ADD(beacon_interval, rootdir); 1281 DEBUGFS_ADD(beacon_filtering, rootdir); 1282 DEBUGFS_ADD(dynamic_ps_timeout, rootdir); 1283 DEBUGFS_ADD(forced_ps, rootdir); 1284 DEBUGFS_ADD(split_scan_timeout, rootdir); 1285 DEBUGFS_ADD(irq_pkt_threshold, rootdir); 1286 DEBUGFS_ADD(irq_blk_threshold, rootdir); 1287 DEBUGFS_ADD(irq_timeout, rootdir); 1288 DEBUGFS_ADD(fw_stats_raw, rootdir); 1289 DEBUGFS_ADD(sleep_auth, rootdir); 1290 DEBUGFS_ADD(fw_logger, rootdir); 1291 1292 streaming = debugfs_create_dir("rx_streaming", rootdir); 1293 1294 DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming); 1295 DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming); 1296 1297 DEBUGFS_ADD_PREFIX(dev, mem, rootdir); 1298} 1299 1300void wl1271_debugfs_reset(struct wl1271 *wl) 1301{ 1302 if (!wl->stats.fw_stats) 1303 return; 1304 1305 memset(wl->stats.fw_stats, 0, wl->stats.fw_stats_len); 1306 wl->stats.retry_count = 0; 1307 wl->stats.excessive_retries = 0; 1308} 1309 1310int wl1271_debugfs_init(struct wl1271 *wl) 1311{ 1312 int ret; 1313 struct dentry *rootdir; 1314 1315 rootdir = debugfs_create_dir(KBUILD_MODNAME, 1316 wl->hw->wiphy->debugfsdir); 1317 1318 wl->stats.fw_stats = kzalloc(wl->stats.fw_stats_len, GFP_KERNEL); 1319 if (!wl->stats.fw_stats) { 1320 ret = -ENOMEM; 1321 goto out_remove; 1322 } 1323 1324 wl->stats.fw_stats_update = jiffies; 1325 1326 wl1271_debugfs_add_files(wl, rootdir); 1327 1328 ret = wlcore_debugfs_init(wl, rootdir); 1329 if (ret < 0) 1330 goto out_exit; 1331 1332 goto out; 1333 1334out_exit: 1335 wl1271_debugfs_exit(wl); 1336 1337out_remove: 1338 debugfs_remove_recursive(rootdir); 1339 1340out: 1341 return ret; 1342} 1343 1344void wl1271_debugfs_exit(struct wl1271 *wl) 1345{ 1346 kfree(wl->stats.fw_stats); 1347 wl->stats.fw_stats = NULL; 1348} 1349