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