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); 493 494 #undef DRIVER_STATE_PRINT_INT 495 #undef DRIVER_STATE_PRINT_LONG 496 #undef DRIVER_STATE_PRINT_HEX 497 #undef DRIVER_STATE_PRINT_LHEX 498 #undef DRIVER_STATE_PRINT_STR 499 #undef DRIVER_STATE_PRINT 500 #undef DRIVER_STATE_BUF_LEN 501 502 mutex_unlock(&wl->mutex); 503 504 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res); 505 kfree(buf); 506 return ret; 507 } 508 509 static const struct file_operations driver_state_ops = { 510 .read = driver_state_read, 511 .open = simple_open, 512 .llseek = default_llseek, 513 }; 514 515 static ssize_t vifs_state_read(struct file *file, char __user *user_buf, 516 size_t count, loff_t *ppos) 517 { 518 struct wl1271 *wl = file->private_data; 519 struct wl12xx_vif *wlvif; 520 int ret, res = 0; 521 const int buf_size = 4096; 522 char *buf; 523 char tmp_buf[64]; 524 525 buf = kzalloc(buf_size, GFP_KERNEL); 526 if (!buf) 527 return -ENOMEM; 528 529 mutex_lock(&wl->mutex); 530 531 #define VIF_STATE_PRINT(x, fmt) \ 532 (res += scnprintf(buf + res, buf_size - res, \ 533 #x " = " fmt "\n", wlvif->x)) 534 535 #define VIF_STATE_PRINT_LONG(x) VIF_STATE_PRINT(x, "%ld") 536 #define VIF_STATE_PRINT_INT(x) VIF_STATE_PRINT(x, "%d") 537 #define VIF_STATE_PRINT_STR(x) VIF_STATE_PRINT(x, "%s") 538 #define VIF_STATE_PRINT_LHEX(x) VIF_STATE_PRINT(x, "0x%lx") 539 #define VIF_STATE_PRINT_LLHEX(x) VIF_STATE_PRINT(x, "0x%llx") 540 #define VIF_STATE_PRINT_HEX(x) VIF_STATE_PRINT(x, "0x%x") 541 542 #define VIF_STATE_PRINT_NSTR(x, len) \ 543 do { \ 544 memset(tmp_buf, 0, sizeof(tmp_buf)); \ 545 memcpy(tmp_buf, wlvif->x, \ 546 min_t(u8, len, sizeof(tmp_buf) - 1)); \ 547 res += scnprintf(buf + res, buf_size - res, \ 548 #x " = %s\n", tmp_buf); \ 549 } while (0) 550 551 wl12xx_for_each_wlvif(wl, wlvif) { 552 VIF_STATE_PRINT_INT(role_id); 553 VIF_STATE_PRINT_INT(bss_type); 554 VIF_STATE_PRINT_LHEX(flags); 555 VIF_STATE_PRINT_INT(p2p); 556 VIF_STATE_PRINT_INT(dev_role_id); 557 VIF_STATE_PRINT_INT(dev_hlid); 558 559 if (wlvif->bss_type == BSS_TYPE_STA_BSS || 560 wlvif->bss_type == BSS_TYPE_IBSS) { 561 VIF_STATE_PRINT_INT(sta.hlid); 562 VIF_STATE_PRINT_INT(sta.ba_rx_bitmap); 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_LHEX(links_map[0]); 580 VIF_STATE_PRINT_NSTR(ssid, wlvif->ssid_len); 581 VIF_STATE_PRINT_INT(band); 582 VIF_STATE_PRINT_INT(channel); 583 VIF_STATE_PRINT_HEX(bitrate_masks[0]); 584 VIF_STATE_PRINT_HEX(bitrate_masks[1]); 585 VIF_STATE_PRINT_HEX(basic_rate_set); 586 VIF_STATE_PRINT_HEX(basic_rate); 587 VIF_STATE_PRINT_HEX(rate_set); 588 VIF_STATE_PRINT_INT(beacon_int); 589 VIF_STATE_PRINT_INT(default_key); 590 VIF_STATE_PRINT_INT(aid); 591 VIF_STATE_PRINT_INT(psm_entry_retry); 592 VIF_STATE_PRINT_INT(power_level); 593 VIF_STATE_PRINT_INT(rssi_thold); 594 VIF_STATE_PRINT_INT(last_rssi_event); 595 VIF_STATE_PRINT_INT(ba_support); 596 VIF_STATE_PRINT_INT(ba_allowed); 597 VIF_STATE_PRINT_LLHEX(tx_security_seq); 598 VIF_STATE_PRINT_INT(tx_security_last_seq_lsb); 599 } 600 601 #undef VIF_STATE_PRINT_INT 602 #undef VIF_STATE_PRINT_LONG 603 #undef VIF_STATE_PRINT_HEX 604 #undef VIF_STATE_PRINT_LHEX 605 #undef VIF_STATE_PRINT_LLHEX 606 #undef VIF_STATE_PRINT_STR 607 #undef VIF_STATE_PRINT_NSTR 608 #undef VIF_STATE_PRINT 609 610 mutex_unlock(&wl->mutex); 611 612 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res); 613 kfree(buf); 614 return ret; 615 } 616 617 static const struct file_operations vifs_state_ops = { 618 .read = vifs_state_read, 619 .open = simple_open, 620 .llseek = default_llseek, 621 }; 622 623 static ssize_t dtim_interval_read(struct file *file, char __user *user_buf, 624 size_t count, loff_t *ppos) 625 { 626 struct wl1271 *wl = file->private_data; 627 u8 value; 628 629 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM || 630 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM) 631 value = wl->conf.conn.listen_interval; 632 else 633 value = 0; 634 635 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); 636 } 637 638 static ssize_t dtim_interval_write(struct file *file, 639 const char __user *user_buf, 640 size_t count, loff_t *ppos) 641 { 642 struct wl1271 *wl = file->private_data; 643 unsigned long value; 644 int ret; 645 646 ret = kstrtoul_from_user(user_buf, count, 10, &value); 647 if (ret < 0) { 648 wl1271_warning("illegal value for dtim_interval"); 649 return -EINVAL; 650 } 651 652 if (value < 1 || value > 10) { 653 wl1271_warning("dtim value is not in valid range"); 654 return -ERANGE; 655 } 656 657 mutex_lock(&wl->mutex); 658 659 wl->conf.conn.listen_interval = value; 660 /* for some reason there are different event types for 1 and >1 */ 661 if (value == 1) 662 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM; 663 else 664 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM; 665 666 /* 667 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only 668 * take effect on the next time we enter psm. 669 */ 670 mutex_unlock(&wl->mutex); 671 return count; 672 } 673 674 static const struct file_operations dtim_interval_ops = { 675 .read = dtim_interval_read, 676 .write = dtim_interval_write, 677 .open = simple_open, 678 .llseek = default_llseek, 679 }; 680 681 682 683 static ssize_t suspend_dtim_interval_read(struct file *file, 684 char __user *user_buf, 685 size_t count, loff_t *ppos) 686 { 687 struct wl1271 *wl = file->private_data; 688 u8 value; 689 690 if (wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_DTIM || 691 wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM) 692 value = wl->conf.conn.suspend_listen_interval; 693 else 694 value = 0; 695 696 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); 697 } 698 699 static ssize_t suspend_dtim_interval_write(struct file *file, 700 const char __user *user_buf, 701 size_t count, loff_t *ppos) 702 { 703 struct wl1271 *wl = file->private_data; 704 unsigned long value; 705 int ret; 706 707 ret = kstrtoul_from_user(user_buf, count, 10, &value); 708 if (ret < 0) { 709 wl1271_warning("illegal value for suspend_dtim_interval"); 710 return -EINVAL; 711 } 712 713 if (value < 1 || value > 10) { 714 wl1271_warning("suspend_dtim value is not in valid range"); 715 return -ERANGE; 716 } 717 718 mutex_lock(&wl->mutex); 719 720 wl->conf.conn.suspend_listen_interval = value; 721 /* for some reason there are different event types for 1 and >1 */ 722 if (value == 1) 723 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_DTIM; 724 else 725 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM; 726 727 mutex_unlock(&wl->mutex); 728 return count; 729 } 730 731 732 static const struct file_operations suspend_dtim_interval_ops = { 733 .read = suspend_dtim_interval_read, 734 .write = suspend_dtim_interval_write, 735 .open = simple_open, 736 .llseek = default_llseek, 737 }; 738 739 static ssize_t beacon_interval_read(struct file *file, char __user *user_buf, 740 size_t count, loff_t *ppos) 741 { 742 struct wl1271 *wl = file->private_data; 743 u8 value; 744 745 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON || 746 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS) 747 value = wl->conf.conn.listen_interval; 748 else 749 value = 0; 750 751 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); 752 } 753 754 static ssize_t beacon_interval_write(struct file *file, 755 const char __user *user_buf, 756 size_t count, loff_t *ppos) 757 { 758 struct wl1271 *wl = file->private_data; 759 unsigned long value; 760 int ret; 761 762 ret = kstrtoul_from_user(user_buf, count, 10, &value); 763 if (ret < 0) { 764 wl1271_warning("illegal value for beacon_interval"); 765 return -EINVAL; 766 } 767 768 if (value < 1 || value > 255) { 769 wl1271_warning("beacon interval value is not in valid range"); 770 return -ERANGE; 771 } 772 773 mutex_lock(&wl->mutex); 774 775 wl->conf.conn.listen_interval = value; 776 /* for some reason there are different event types for 1 and >1 */ 777 if (value == 1) 778 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON; 779 else 780 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS; 781 782 /* 783 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only 784 * take effect on the next time we enter psm. 785 */ 786 mutex_unlock(&wl->mutex); 787 return count; 788 } 789 790 static const struct file_operations beacon_interval_ops = { 791 .read = beacon_interval_read, 792 .write = beacon_interval_write, 793 .open = simple_open, 794 .llseek = default_llseek, 795 }; 796 797 static ssize_t rx_streaming_interval_write(struct file *file, 798 const char __user *user_buf, 799 size_t count, loff_t *ppos) 800 { 801 struct wl1271 *wl = file->private_data; 802 struct wl12xx_vif *wlvif; 803 unsigned long value; 804 int ret; 805 806 ret = kstrtoul_from_user(user_buf, count, 10, &value); 807 if (ret < 0) { 808 wl1271_warning("illegal value in rx_streaming_interval!"); 809 return -EINVAL; 810 } 811 812 /* valid values: 0, 10-100 */ 813 if (value && (value < 10 || value > 100)) { 814 wl1271_warning("value is not in range!"); 815 return -ERANGE; 816 } 817 818 mutex_lock(&wl->mutex); 819 820 wl->conf.rx_streaming.interval = value; 821 822 ret = wl1271_ps_elp_wakeup(wl); 823 if (ret < 0) 824 goto out; 825 826 wl12xx_for_each_wlvif_sta(wl, wlvif) { 827 wl1271_recalc_rx_streaming(wl, wlvif); 828 } 829 830 wl1271_ps_elp_sleep(wl); 831 out: 832 mutex_unlock(&wl->mutex); 833 return count; 834 } 835 836 static ssize_t rx_streaming_interval_read(struct file *file, 837 char __user *userbuf, 838 size_t count, loff_t *ppos) 839 { 840 struct wl1271 *wl = file->private_data; 841 return wl1271_format_buffer(userbuf, count, ppos, 842 "%d\n", wl->conf.rx_streaming.interval); 843 } 844 845 static const struct file_operations rx_streaming_interval_ops = { 846 .read = rx_streaming_interval_read, 847 .write = rx_streaming_interval_write, 848 .open = simple_open, 849 .llseek = default_llseek, 850 }; 851 852 static ssize_t rx_streaming_always_write(struct file *file, 853 const char __user *user_buf, 854 size_t count, loff_t *ppos) 855 { 856 struct wl1271 *wl = file->private_data; 857 struct wl12xx_vif *wlvif; 858 unsigned long value; 859 int ret; 860 861 ret = kstrtoul_from_user(user_buf, count, 10, &value); 862 if (ret < 0) { 863 wl1271_warning("illegal value in rx_streaming_write!"); 864 return -EINVAL; 865 } 866 867 /* valid values: 0, 10-100 */ 868 if (!(value == 0 || value == 1)) { 869 wl1271_warning("value is not in valid!"); 870 return -EINVAL; 871 } 872 873 mutex_lock(&wl->mutex); 874 875 wl->conf.rx_streaming.always = value; 876 877 ret = wl1271_ps_elp_wakeup(wl); 878 if (ret < 0) 879 goto out; 880 881 wl12xx_for_each_wlvif_sta(wl, wlvif) { 882 wl1271_recalc_rx_streaming(wl, wlvif); 883 } 884 885 wl1271_ps_elp_sleep(wl); 886 out: 887 mutex_unlock(&wl->mutex); 888 return count; 889 } 890 891 static ssize_t rx_streaming_always_read(struct file *file, 892 char __user *userbuf, 893 size_t count, loff_t *ppos) 894 { 895 struct wl1271 *wl = file->private_data; 896 return wl1271_format_buffer(userbuf, count, ppos, 897 "%d\n", wl->conf.rx_streaming.always); 898 } 899 900 static const struct file_operations rx_streaming_always_ops = { 901 .read = rx_streaming_always_read, 902 .write = rx_streaming_always_write, 903 .open = simple_open, 904 .llseek = default_llseek, 905 }; 906 907 static ssize_t beacon_filtering_write(struct file *file, 908 const char __user *user_buf, 909 size_t count, loff_t *ppos) 910 { 911 struct wl1271 *wl = file->private_data; 912 struct wl12xx_vif *wlvif; 913 char buf[10]; 914 size_t len; 915 unsigned long value; 916 int ret; 917 918 len = min(count, sizeof(buf) - 1); 919 if (copy_from_user(buf, user_buf, len)) 920 return -EFAULT; 921 buf[len] = '\0'; 922 923 ret = kstrtoul(buf, 0, &value); 924 if (ret < 0) { 925 wl1271_warning("illegal value for beacon_filtering!"); 926 return -EINVAL; 927 } 928 929 mutex_lock(&wl->mutex); 930 931 ret = wl1271_ps_elp_wakeup(wl); 932 if (ret < 0) 933 goto out; 934 935 wl12xx_for_each_wlvif(wl, wlvif) { 936 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value); 937 } 938 939 wl1271_ps_elp_sleep(wl); 940 out: 941 mutex_unlock(&wl->mutex); 942 return count; 943 } 944 945 static const struct file_operations beacon_filtering_ops = { 946 .write = beacon_filtering_write, 947 .open = simple_open, 948 .llseek = default_llseek, 949 }; 950 951 static ssize_t fw_stats_raw_read(struct file *file, 952 char __user *userbuf, 953 size_t count, loff_t *ppos) 954 { 955 struct wl1271 *wl = file->private_data; 956 957 wl1271_debugfs_update_stats(wl); 958 959 return simple_read_from_buffer(userbuf, count, ppos, 960 wl->stats.fw_stats, 961 wl->stats.fw_stats_len); 962 } 963 964 static const struct file_operations fw_stats_raw_ops = { 965 .read = fw_stats_raw_read, 966 .open = simple_open, 967 .llseek = default_llseek, 968 }; 969 970 static ssize_t sleep_auth_read(struct file *file, char __user *user_buf, 971 size_t count, loff_t *ppos) 972 { 973 struct wl1271 *wl = file->private_data; 974 975 return wl1271_format_buffer(user_buf, count, 976 ppos, "%d\n", 977 wl->sleep_auth); 978 } 979 980 static ssize_t sleep_auth_write(struct file *file, 981 const char __user *user_buf, 982 size_t count, loff_t *ppos) 983 { 984 struct wl1271 *wl = file->private_data; 985 unsigned long value; 986 int ret; 987 988 ret = kstrtoul_from_user(user_buf, count, 0, &value); 989 if (ret < 0) { 990 wl1271_warning("illegal value in sleep_auth"); 991 return -EINVAL; 992 } 993 994 if (value > WL1271_PSM_MAX) { 995 wl1271_warning("sleep_auth must be between 0 and %d", 996 WL1271_PSM_MAX); 997 return -ERANGE; 998 } 999 1000 mutex_lock(&wl->mutex); 1001 1002 wl->conf.conn.sta_sleep_auth = value; 1003 1004 if (unlikely(wl->state != WLCORE_STATE_ON)) { 1005 /* this will show up on "read" in case we are off */ 1006 wl->sleep_auth = value; 1007 goto out; 1008 } 1009 1010 ret = wl1271_ps_elp_wakeup(wl); 1011 if (ret < 0) 1012 goto out; 1013 1014 ret = wl1271_acx_sleep_auth(wl, value); 1015 if (ret < 0) 1016 goto out_sleep; 1017 1018 out_sleep: 1019 wl1271_ps_elp_sleep(wl); 1020 out: 1021 mutex_unlock(&wl->mutex); 1022 return count; 1023 } 1024 1025 static 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 1032 static 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 = file->f_pos; 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 wl1271_ps_elp_wakeup(wl); 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 1086 read_err: 1087 /* recover partition */ 1088 ret = wlcore_set_partition(wl, &old_part); 1089 if (ret < 0) 1090 goto part_err; 1091 1092 part_err: 1093 wl1271_ps_elp_sleep(wl); 1094 1095 skip_read: 1096 mutex_unlock(&wl->mutex); 1097 1098 if (ret == 0) { 1099 ret = copy_to_user(user_buf, buf, bytes); 1100 if (ret < bytes) { 1101 bytes -= ret; 1102 *ppos += bytes; 1103 ret = 0; 1104 } else { 1105 ret = -EFAULT; 1106 } 1107 } 1108 1109 kfree(buf); 1110 1111 return ((ret == 0) ? bytes : ret); 1112 } 1113 1114 static ssize_t dev_mem_write(struct file *file, const char __user *user_buf, 1115 size_t count, loff_t *ppos) 1116 { 1117 struct wl1271 *wl = file->private_data; 1118 struct wlcore_partition_set part, old_part; 1119 size_t bytes = count; 1120 int ret; 1121 char *buf; 1122 1123 /* only requests of dword-aligned size and offset are supported */ 1124 if (bytes % 4) 1125 return -EINVAL; 1126 1127 if (*ppos % 4) 1128 return -EINVAL; 1129 1130 /* function should return in reasonable time */ 1131 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE); 1132 1133 if (bytes == 0) 1134 return -EINVAL; 1135 1136 memset(&part, 0, sizeof(part)); 1137 part.mem.start = file->f_pos; 1138 part.mem.size = bytes; 1139 1140 buf = kmalloc(bytes, GFP_KERNEL); 1141 if (!buf) 1142 return -ENOMEM; 1143 1144 ret = copy_from_user(buf, user_buf, bytes); 1145 if (ret) { 1146 ret = -EFAULT; 1147 goto err_out; 1148 } 1149 1150 mutex_lock(&wl->mutex); 1151 1152 if (unlikely(wl->state == WLCORE_STATE_OFF)) { 1153 ret = -EFAULT; 1154 goto skip_write; 1155 } 1156 1157 /* 1158 * Don't fail if elp_wakeup returns an error, so the device's memory 1159 * could be read even if the FW crashed 1160 */ 1161 wl1271_ps_elp_wakeup(wl); 1162 1163 /* store current partition and switch partition */ 1164 memcpy(&old_part, &wl->curr_part, sizeof(old_part)); 1165 ret = wlcore_set_partition(wl, &part); 1166 if (ret < 0) 1167 goto part_err; 1168 1169 ret = wlcore_raw_write(wl, 0, buf, bytes, false); 1170 if (ret < 0) 1171 goto write_err; 1172 1173 write_err: 1174 /* recover partition */ 1175 ret = wlcore_set_partition(wl, &old_part); 1176 if (ret < 0) 1177 goto part_err; 1178 1179 part_err: 1180 wl1271_ps_elp_sleep(wl); 1181 1182 skip_write: 1183 mutex_unlock(&wl->mutex); 1184 1185 if (ret == 0) 1186 *ppos += bytes; 1187 1188 err_out: 1189 kfree(buf); 1190 1191 return ((ret == 0) ? bytes : ret); 1192 } 1193 1194 static loff_t dev_mem_seek(struct file *file, loff_t offset, int orig) 1195 { 1196 loff_t ret; 1197 1198 /* only requests of dword-aligned size and offset are supported */ 1199 if (offset % 4) 1200 return -EINVAL; 1201 1202 switch (orig) { 1203 case SEEK_SET: 1204 file->f_pos = offset; 1205 ret = file->f_pos; 1206 break; 1207 case SEEK_CUR: 1208 file->f_pos += offset; 1209 ret = file->f_pos; 1210 break; 1211 default: 1212 ret = -EINVAL; 1213 } 1214 1215 return ret; 1216 } 1217 1218 static const struct file_operations dev_mem_ops = { 1219 .open = simple_open, 1220 .read = dev_mem_read, 1221 .write = dev_mem_write, 1222 .llseek = dev_mem_seek, 1223 }; 1224 1225 static int wl1271_debugfs_add_files(struct wl1271 *wl, 1226 struct dentry *rootdir) 1227 { 1228 int ret = 0; 1229 struct dentry *entry, *streaming; 1230 1231 DEBUGFS_ADD(tx_queue_len, rootdir); 1232 DEBUGFS_ADD(retry_count, rootdir); 1233 DEBUGFS_ADD(excessive_retries, rootdir); 1234 1235 DEBUGFS_ADD(gpio_power, rootdir); 1236 DEBUGFS_ADD(start_recovery, rootdir); 1237 DEBUGFS_ADD(driver_state, rootdir); 1238 DEBUGFS_ADD(vifs_state, rootdir); 1239 DEBUGFS_ADD(dtim_interval, rootdir); 1240 DEBUGFS_ADD(suspend_dtim_interval, rootdir); 1241 DEBUGFS_ADD(beacon_interval, rootdir); 1242 DEBUGFS_ADD(beacon_filtering, rootdir); 1243 DEBUGFS_ADD(dynamic_ps_timeout, rootdir); 1244 DEBUGFS_ADD(forced_ps, rootdir); 1245 DEBUGFS_ADD(split_scan_timeout, rootdir); 1246 DEBUGFS_ADD(irq_pkt_threshold, rootdir); 1247 DEBUGFS_ADD(irq_blk_threshold, rootdir); 1248 DEBUGFS_ADD(irq_timeout, rootdir); 1249 DEBUGFS_ADD(fw_stats_raw, rootdir); 1250 DEBUGFS_ADD(sleep_auth, rootdir); 1251 1252 streaming = debugfs_create_dir("rx_streaming", rootdir); 1253 if (!streaming || IS_ERR(streaming)) 1254 goto err; 1255 1256 DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming); 1257 DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming); 1258 1259 DEBUGFS_ADD_PREFIX(dev, mem, rootdir); 1260 1261 return 0; 1262 1263 err: 1264 if (IS_ERR(entry)) 1265 ret = PTR_ERR(entry); 1266 else 1267 ret = -ENOMEM; 1268 1269 return ret; 1270 } 1271 1272 void wl1271_debugfs_reset(struct wl1271 *wl) 1273 { 1274 if (!wl->stats.fw_stats) 1275 return; 1276 1277 memset(wl->stats.fw_stats, 0, wl->stats.fw_stats_len); 1278 wl->stats.retry_count = 0; 1279 wl->stats.excessive_retries = 0; 1280 } 1281 1282 int wl1271_debugfs_init(struct wl1271 *wl) 1283 { 1284 int ret; 1285 struct dentry *rootdir; 1286 1287 rootdir = debugfs_create_dir(KBUILD_MODNAME, 1288 wl->hw->wiphy->debugfsdir); 1289 1290 if (IS_ERR(rootdir)) { 1291 ret = PTR_ERR(rootdir); 1292 goto out; 1293 } 1294 1295 wl->stats.fw_stats = kzalloc(wl->stats.fw_stats_len, GFP_KERNEL); 1296 if (!wl->stats.fw_stats) { 1297 ret = -ENOMEM; 1298 goto out_remove; 1299 } 1300 1301 wl->stats.fw_stats_update = jiffies; 1302 1303 ret = wl1271_debugfs_add_files(wl, rootdir); 1304 if (ret < 0) 1305 goto out_exit; 1306 1307 ret = wlcore_debugfs_init(wl, rootdir); 1308 if (ret < 0) 1309 goto out_exit; 1310 1311 goto out; 1312 1313 out_exit: 1314 wl1271_debugfs_exit(wl); 1315 1316 out_remove: 1317 debugfs_remove_recursive(rootdir); 1318 1319 out: 1320 return ret; 1321 } 1322 1323 void wl1271_debugfs_exit(struct wl1271 *wl) 1324 { 1325 kfree(wl->stats.fw_stats); 1326 wl->stats.fw_stats = NULL; 1327 } 1328