1 /* 2 * This file is part of wl1271 3 * 4 * Copyright (C) 2009 Nokia Corporation 5 * 6 * Contact: Luciano Coelho <luciano.coelho@nokia.com> 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License 10 * version 2 as published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 20 * 02110-1301 USA 21 * 22 */ 23 24 #include "debugfs.h" 25 26 #include <linux/skbuff.h> 27 #include <linux/slab.h> 28 #include <linux/module.h> 29 30 #include "wlcore.h" 31 #include "debug.h" 32 #include "acx.h" 33 #include "ps.h" 34 #include "io.h" 35 #include "tx.h" 36 #include "hw_ops.h" 37 38 /* ms */ 39 #define WL1271_DEBUGFS_STATS_LIFETIME 1000 40 41 #define WLCORE_MAX_BLOCK_SIZE ((size_t)(4*PAGE_SIZE)) 42 43 /* debugfs macros idea from mac80211 */ 44 int wl1271_format_buffer(char __user *userbuf, size_t count, 45 loff_t *ppos, char *fmt, ...) 46 { 47 va_list args; 48 char buf[DEBUGFS_FORMAT_BUFFER_SIZE]; 49 int res; 50 51 va_start(args, fmt); 52 res = vscnprintf(buf, sizeof(buf), fmt, args); 53 va_end(args); 54 55 return simple_read_from_buffer(userbuf, count, ppos, buf, res); 56 } 57 EXPORT_SYMBOL_GPL(wl1271_format_buffer); 58 59 void wl1271_debugfs_update_stats(struct wl1271 *wl) 60 { 61 int ret; 62 63 mutex_lock(&wl->mutex); 64 65 if (unlikely(wl->state != WLCORE_STATE_ON)) 66 goto out; 67 68 ret = wl1271_ps_elp_wakeup(wl); 69 if (ret < 0) 70 goto out; 71 72 if (!wl->plt && 73 time_after(jiffies, wl->stats.fw_stats_update + 74 msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) { 75 wl1271_acx_statistics(wl, wl->stats.fw_stats); 76 wl->stats.fw_stats_update = jiffies; 77 } 78 79 wl1271_ps_elp_sleep(wl); 80 81 out: 82 mutex_unlock(&wl->mutex); 83 } 84 EXPORT_SYMBOL_GPL(wl1271_debugfs_update_stats); 85 86 DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count); 87 DEBUGFS_READONLY_FILE(excessive_retries, "%u", 88 wl->stats.excessive_retries); 89 90 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf, 91 size_t count, loff_t *ppos) 92 { 93 struct wl1271 *wl = file->private_data; 94 u32 queue_len; 95 char buf[20]; 96 int res; 97 98 queue_len = wl1271_tx_total_queue_count(wl); 99 100 res = scnprintf(buf, sizeof(buf), "%u\n", queue_len); 101 return simple_read_from_buffer(userbuf, count, ppos, buf, res); 102 } 103 104 static const struct file_operations tx_queue_len_ops = { 105 .read = tx_queue_len_read, 106 .open = simple_open, 107 .llseek = default_llseek, 108 }; 109 110 static void chip_op_handler(struct wl1271 *wl, unsigned long value, 111 void *arg) 112 { 113 int ret; 114 int (*chip_op) (struct wl1271 *wl); 115 116 if (!arg) { 117 wl1271_warning("debugfs chip_op_handler with no callback"); 118 return; 119 } 120 121 ret = wl1271_ps_elp_wakeup(wl); 122 if (ret < 0) 123 return; 124 125 chip_op = arg; 126 chip_op(wl); 127 128 wl1271_ps_elp_sleep(wl); 129 } 130 131 132 static inline void no_write_handler(struct wl1271 *wl, 133 unsigned long value, 134 unsigned long param) 135 { 136 } 137 138 #define WL12XX_CONF_DEBUGFS(param, conf_sub_struct, \ 139 min_val, max_val, write_handler_locked, \ 140 write_handler_arg) \ 141 static ssize_t param##_read(struct file *file, \ 142 char __user *user_buf, \ 143 size_t count, loff_t *ppos) \ 144 { \ 145 struct wl1271 *wl = file->private_data; \ 146 return wl1271_format_buffer(user_buf, count, \ 147 ppos, "%d\n", \ 148 wl->conf.conf_sub_struct.param); \ 149 } \ 150 \ 151 static ssize_t param##_write(struct file *file, \ 152 const char __user *user_buf, \ 153 size_t count, loff_t *ppos) \ 154 { \ 155 struct wl1271 *wl = file->private_data; \ 156 unsigned long value; \ 157 int ret; \ 158 \ 159 ret = kstrtoul_from_user(user_buf, count, 10, &value); \ 160 if (ret < 0) { \ 161 wl1271_warning("illegal value for " #param); \ 162 return -EINVAL; \ 163 } \ 164 \ 165 if (value < min_val || value > max_val) { \ 166 wl1271_warning(#param " is not in valid range"); \ 167 return -ERANGE; \ 168 } \ 169 \ 170 mutex_lock(&wl->mutex); \ 171 wl->conf.conf_sub_struct.param = value; \ 172 \ 173 write_handler_locked(wl, value, write_handler_arg); \ 174 \ 175 mutex_unlock(&wl->mutex); \ 176 return count; \ 177 } \ 178 \ 179 static const struct file_operations param##_ops = { \ 180 .read = param##_read, \ 181 .write = param##_write, \ 182 .open = simple_open, \ 183 .llseek = default_llseek, \ 184 }; 185 186 WL12XX_CONF_DEBUGFS(irq_pkt_threshold, rx, 0, 65535, 187 chip_op_handler, wl1271_acx_init_rx_interrupt) 188 WL12XX_CONF_DEBUGFS(irq_blk_threshold, rx, 0, 65535, 189 chip_op_handler, wl1271_acx_init_rx_interrupt) 190 WL12XX_CONF_DEBUGFS(irq_timeout, rx, 0, 100, 191 chip_op_handler, wl1271_acx_init_rx_interrupt) 192 193 static ssize_t gpio_power_read(struct file *file, char __user *user_buf, 194 size_t count, loff_t *ppos) 195 { 196 struct wl1271 *wl = file->private_data; 197 bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags); 198 199 int res; 200 char buf[10]; 201 202 res = scnprintf(buf, sizeof(buf), "%d\n", state); 203 204 return simple_read_from_buffer(user_buf, count, ppos, buf, res); 205 } 206 207 static ssize_t gpio_power_write(struct file *file, 208 const char __user *user_buf, 209 size_t count, loff_t *ppos) 210 { 211 struct wl1271 *wl = file->private_data; 212 unsigned long value; 213 int ret; 214 215 ret = kstrtoul_from_user(user_buf, count, 10, &value); 216 if (ret < 0) { 217 wl1271_warning("illegal value in gpio_power"); 218 return -EINVAL; 219 } 220 221 mutex_lock(&wl->mutex); 222 223 if (value) 224 wl1271_power_on(wl); 225 else 226 wl1271_power_off(wl); 227 228 mutex_unlock(&wl->mutex); 229 return count; 230 } 231 232 static const struct file_operations gpio_power_ops = { 233 .read = gpio_power_read, 234 .write = gpio_power_write, 235 .open = simple_open, 236 .llseek = default_llseek, 237 }; 238 239 static ssize_t start_recovery_write(struct file *file, 240 const char __user *user_buf, 241 size_t count, loff_t *ppos) 242 { 243 struct wl1271 *wl = file->private_data; 244 245 mutex_lock(&wl->mutex); 246 wl12xx_queue_recovery_work(wl); 247 mutex_unlock(&wl->mutex); 248 249 return count; 250 } 251 252 static const struct file_operations start_recovery_ops = { 253 .write = start_recovery_write, 254 .open = simple_open, 255 .llseek = default_llseek, 256 }; 257 258 static ssize_t dynamic_ps_timeout_read(struct file *file, char __user *user_buf, 259 size_t count, loff_t *ppos) 260 { 261 struct wl1271 *wl = file->private_data; 262 263 return wl1271_format_buffer(user_buf, count, 264 ppos, "%d\n", 265 wl->conf.conn.dynamic_ps_timeout); 266 } 267 268 static ssize_t dynamic_ps_timeout_write(struct file *file, 269 const char __user *user_buf, 270 size_t count, loff_t *ppos) 271 { 272 struct wl1271 *wl = file->private_data; 273 struct wl12xx_vif *wlvif; 274 unsigned long value; 275 int ret; 276 277 ret = kstrtoul_from_user(user_buf, count, 10, &value); 278 if (ret < 0) { 279 wl1271_warning("illegal value in dynamic_ps"); 280 return -EINVAL; 281 } 282 283 if (value < 1 || value > 65535) { 284 wl1271_warning("dyanmic_ps_timeout is not in valid range"); 285 return -ERANGE; 286 } 287 288 mutex_lock(&wl->mutex); 289 290 wl->conf.conn.dynamic_ps_timeout = value; 291 292 if (unlikely(wl->state != WLCORE_STATE_ON)) 293 goto out; 294 295 ret = wl1271_ps_elp_wakeup(wl); 296 if (ret < 0) 297 goto out; 298 299 /* In case we're already in PSM, trigger it again to set new timeout 300 * immediately without waiting for re-association 301 */ 302 303 wl12xx_for_each_wlvif_sta(wl, wlvif) { 304 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) 305 wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE); 306 } 307 308 wl1271_ps_elp_sleep(wl); 309 310 out: 311 mutex_unlock(&wl->mutex); 312 return count; 313 } 314 315 static const struct file_operations dynamic_ps_timeout_ops = { 316 .read = dynamic_ps_timeout_read, 317 .write = dynamic_ps_timeout_write, 318 .open = simple_open, 319 .llseek = default_llseek, 320 }; 321 322 static ssize_t forced_ps_read(struct file *file, char __user *user_buf, 323 size_t count, loff_t *ppos) 324 { 325 struct wl1271 *wl = file->private_data; 326 327 return wl1271_format_buffer(user_buf, count, 328 ppos, "%d\n", 329 wl->conf.conn.forced_ps); 330 } 331 332 static ssize_t forced_ps_write(struct file *file, 333 const char __user *user_buf, 334 size_t count, loff_t *ppos) 335 { 336 struct wl1271 *wl = file->private_data; 337 struct wl12xx_vif *wlvif; 338 unsigned long value; 339 int ret, ps_mode; 340 341 ret = kstrtoul_from_user(user_buf, count, 10, &value); 342 if (ret < 0) { 343 wl1271_warning("illegal value in forced_ps"); 344 return -EINVAL; 345 } 346 347 if (value != 1 && value != 0) { 348 wl1271_warning("forced_ps should be either 0 or 1"); 349 return -ERANGE; 350 } 351 352 mutex_lock(&wl->mutex); 353 354 if (wl->conf.conn.forced_ps == value) 355 goto out; 356 357 wl->conf.conn.forced_ps = value; 358 359 if (unlikely(wl->state != WLCORE_STATE_ON)) 360 goto out; 361 362 ret = wl1271_ps_elp_wakeup(wl); 363 if (ret < 0) 364 goto out; 365 366 /* In case we're already in PSM, trigger it again to switch mode 367 * immediately without waiting for re-association 368 */ 369 370 ps_mode = value ? STATION_POWER_SAVE_MODE : STATION_AUTO_PS_MODE; 371 372 wl12xx_for_each_wlvif_sta(wl, wlvif) { 373 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) 374 wl1271_ps_set_mode(wl, wlvif, ps_mode); 375 } 376 377 wl1271_ps_elp_sleep(wl); 378 379 out: 380 mutex_unlock(&wl->mutex); 381 return count; 382 } 383 384 static const struct file_operations forced_ps_ops = { 385 .read = forced_ps_read, 386 .write = forced_ps_write, 387 .open = simple_open, 388 .llseek = default_llseek, 389 }; 390 391 static ssize_t split_scan_timeout_read(struct file *file, char __user *user_buf, 392 size_t count, loff_t *ppos) 393 { 394 struct wl1271 *wl = file->private_data; 395 396 return wl1271_format_buffer(user_buf, count, 397 ppos, "%d\n", 398 wl->conf.scan.split_scan_timeout / 1000); 399 } 400 401 static ssize_t split_scan_timeout_write(struct file *file, 402 const char __user *user_buf, 403 size_t count, loff_t *ppos) 404 { 405 struct wl1271 *wl = file->private_data; 406 unsigned long value; 407 int ret; 408 409 ret = kstrtoul_from_user(user_buf, count, 10, &value); 410 if (ret < 0) { 411 wl1271_warning("illegal value in split_scan_timeout"); 412 return -EINVAL; 413 } 414 415 if (value == 0) 416 wl1271_info("split scan will be disabled"); 417 418 mutex_lock(&wl->mutex); 419 420 wl->conf.scan.split_scan_timeout = value * 1000; 421 422 mutex_unlock(&wl->mutex); 423 return count; 424 } 425 426 static const struct file_operations split_scan_timeout_ops = { 427 .read = split_scan_timeout_read, 428 .write = split_scan_timeout_write, 429 .open = simple_open, 430 .llseek = default_llseek, 431 }; 432 433 static ssize_t driver_state_read(struct file *file, char __user *user_buf, 434 size_t count, loff_t *ppos) 435 { 436 struct wl1271 *wl = file->private_data; 437 int res = 0; 438 ssize_t ret; 439 char *buf; 440 441 #define DRIVER_STATE_BUF_LEN 1024 442 443 buf = kmalloc(DRIVER_STATE_BUF_LEN, GFP_KERNEL); 444 if (!buf) 445 return -ENOMEM; 446 447 mutex_lock(&wl->mutex); 448 449 #define DRIVER_STATE_PRINT(x, fmt) \ 450 (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\ 451 #x " = " fmt "\n", wl->x)) 452 453 #define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld") 454 #define DRIVER_STATE_PRINT_INT(x) DRIVER_STATE_PRINT(x, "%d") 455 #define DRIVER_STATE_PRINT_STR(x) DRIVER_STATE_PRINT(x, "%s") 456 #define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx") 457 #define DRIVER_STATE_PRINT_HEX(x) DRIVER_STATE_PRINT(x, "0x%x") 458 459 DRIVER_STATE_PRINT_INT(tx_blocks_available); 460 DRIVER_STATE_PRINT_INT(tx_allocated_blocks); 461 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]); 462 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]); 463 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]); 464 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]); 465 DRIVER_STATE_PRINT_INT(tx_frames_cnt); 466 DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]); 467 DRIVER_STATE_PRINT_INT(tx_queue_count[0]); 468 DRIVER_STATE_PRINT_INT(tx_queue_count[1]); 469 DRIVER_STATE_PRINT_INT(tx_queue_count[2]); 470 DRIVER_STATE_PRINT_INT(tx_queue_count[3]); 471 DRIVER_STATE_PRINT_INT(tx_packets_count); 472 DRIVER_STATE_PRINT_INT(tx_results_count); 473 DRIVER_STATE_PRINT_LHEX(flags); 474 DRIVER_STATE_PRINT_INT(tx_blocks_freed); 475 DRIVER_STATE_PRINT_INT(rx_counter); 476 DRIVER_STATE_PRINT_INT(state); 477 DRIVER_STATE_PRINT_INT(channel); 478 DRIVER_STATE_PRINT_INT(band); 479 DRIVER_STATE_PRINT_INT(power_level); 480 DRIVER_STATE_PRINT_INT(sg_enabled); 481 DRIVER_STATE_PRINT_INT(enable_11a); 482 DRIVER_STATE_PRINT_INT(noise); 483 DRIVER_STATE_PRINT_HEX(ap_fw_ps_map); 484 DRIVER_STATE_PRINT_LHEX(ap_ps_map); 485 DRIVER_STATE_PRINT_HEX(quirks); 486 DRIVER_STATE_PRINT_HEX(irq); 487 /* TODO: ref_clock and tcxo_clock were moved to wl12xx priv */ 488 DRIVER_STATE_PRINT_HEX(hw_pg_ver); 489 DRIVER_STATE_PRINT_HEX(platform_quirks); 490 DRIVER_STATE_PRINT_HEX(chip.id); 491 DRIVER_STATE_PRINT_STR(chip.fw_ver_str); 492 DRIVER_STATE_PRINT_STR(chip.phy_fw_ver_str); 493 DRIVER_STATE_PRINT_INT(recovery_count); 494 495 #undef DRIVER_STATE_PRINT_INT 496 #undef DRIVER_STATE_PRINT_LONG 497 #undef DRIVER_STATE_PRINT_HEX 498 #undef DRIVER_STATE_PRINT_LHEX 499 #undef DRIVER_STATE_PRINT_STR 500 #undef DRIVER_STATE_PRINT 501 #undef DRIVER_STATE_BUF_LEN 502 503 mutex_unlock(&wl->mutex); 504 505 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res); 506 kfree(buf); 507 return ret; 508 } 509 510 static const struct file_operations driver_state_ops = { 511 .read = driver_state_read, 512 .open = simple_open, 513 .llseek = default_llseek, 514 }; 515 516 static ssize_t vifs_state_read(struct file *file, char __user *user_buf, 517 size_t count, loff_t *ppos) 518 { 519 struct wl1271 *wl = file->private_data; 520 struct wl12xx_vif *wlvif; 521 int ret, res = 0; 522 const int buf_size = 4096; 523 char *buf; 524 char tmp_buf[64]; 525 526 buf = kzalloc(buf_size, GFP_KERNEL); 527 if (!buf) 528 return -ENOMEM; 529 530 mutex_lock(&wl->mutex); 531 532 #define VIF_STATE_PRINT(x, fmt) \ 533 (res += scnprintf(buf + res, buf_size - res, \ 534 #x " = " fmt "\n", wlvif->x)) 535 536 #define VIF_STATE_PRINT_LONG(x) VIF_STATE_PRINT(x, "%ld") 537 #define VIF_STATE_PRINT_INT(x) VIF_STATE_PRINT(x, "%d") 538 #define VIF_STATE_PRINT_STR(x) VIF_STATE_PRINT(x, "%s") 539 #define VIF_STATE_PRINT_LHEX(x) VIF_STATE_PRINT(x, "0x%lx") 540 #define VIF_STATE_PRINT_LLHEX(x) VIF_STATE_PRINT(x, "0x%llx") 541 #define VIF_STATE_PRINT_HEX(x) VIF_STATE_PRINT(x, "0x%x") 542 543 #define VIF_STATE_PRINT_NSTR(x, len) \ 544 do { \ 545 memset(tmp_buf, 0, sizeof(tmp_buf)); \ 546 memcpy(tmp_buf, wlvif->x, \ 547 min_t(u8, len, sizeof(tmp_buf) - 1)); \ 548 res += scnprintf(buf + res, buf_size - res, \ 549 #x " = %s\n", tmp_buf); \ 550 } while (0) 551 552 wl12xx_for_each_wlvif(wl, wlvif) { 553 VIF_STATE_PRINT_INT(role_id); 554 VIF_STATE_PRINT_INT(bss_type); 555 VIF_STATE_PRINT_LHEX(flags); 556 VIF_STATE_PRINT_INT(p2p); 557 VIF_STATE_PRINT_INT(dev_role_id); 558 VIF_STATE_PRINT_INT(dev_hlid); 559 560 if (wlvif->bss_type == BSS_TYPE_STA_BSS || 561 wlvif->bss_type == BSS_TYPE_IBSS) { 562 VIF_STATE_PRINT_INT(sta.hlid); 563 VIF_STATE_PRINT_INT(sta.basic_rate_idx); 564 VIF_STATE_PRINT_INT(sta.ap_rate_idx); 565 VIF_STATE_PRINT_INT(sta.p2p_rate_idx); 566 VIF_STATE_PRINT_INT(sta.qos); 567 } else { 568 VIF_STATE_PRINT_INT(ap.global_hlid); 569 VIF_STATE_PRINT_INT(ap.bcast_hlid); 570 VIF_STATE_PRINT_LHEX(ap.sta_hlid_map[0]); 571 VIF_STATE_PRINT_INT(ap.mgmt_rate_idx); 572 VIF_STATE_PRINT_INT(ap.bcast_rate_idx); 573 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[0]); 574 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[1]); 575 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[2]); 576 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[3]); 577 } 578 VIF_STATE_PRINT_INT(last_tx_hlid); 579 VIF_STATE_PRINT_INT(tx_queue_count[0]); 580 VIF_STATE_PRINT_INT(tx_queue_count[1]); 581 VIF_STATE_PRINT_INT(tx_queue_count[2]); 582 VIF_STATE_PRINT_INT(tx_queue_count[3]); 583 VIF_STATE_PRINT_LHEX(links_map[0]); 584 VIF_STATE_PRINT_NSTR(ssid, wlvif->ssid_len); 585 VIF_STATE_PRINT_INT(band); 586 VIF_STATE_PRINT_INT(channel); 587 VIF_STATE_PRINT_HEX(bitrate_masks[0]); 588 VIF_STATE_PRINT_HEX(bitrate_masks[1]); 589 VIF_STATE_PRINT_HEX(basic_rate_set); 590 VIF_STATE_PRINT_HEX(basic_rate); 591 VIF_STATE_PRINT_HEX(rate_set); 592 VIF_STATE_PRINT_INT(beacon_int); 593 VIF_STATE_PRINT_INT(default_key); 594 VIF_STATE_PRINT_INT(aid); 595 VIF_STATE_PRINT_INT(psm_entry_retry); 596 VIF_STATE_PRINT_INT(power_level); 597 VIF_STATE_PRINT_INT(rssi_thold); 598 VIF_STATE_PRINT_INT(last_rssi_event); 599 VIF_STATE_PRINT_INT(ba_support); 600 VIF_STATE_PRINT_INT(ba_allowed); 601 VIF_STATE_PRINT_LLHEX(tx_security_seq); 602 VIF_STATE_PRINT_INT(tx_security_last_seq_lsb); 603 } 604 605 #undef VIF_STATE_PRINT_INT 606 #undef VIF_STATE_PRINT_LONG 607 #undef VIF_STATE_PRINT_HEX 608 #undef VIF_STATE_PRINT_LHEX 609 #undef VIF_STATE_PRINT_LLHEX 610 #undef VIF_STATE_PRINT_STR 611 #undef VIF_STATE_PRINT_NSTR 612 #undef VIF_STATE_PRINT 613 614 mutex_unlock(&wl->mutex); 615 616 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res); 617 kfree(buf); 618 return ret; 619 } 620 621 static const struct file_operations vifs_state_ops = { 622 .read = vifs_state_read, 623 .open = simple_open, 624 .llseek = default_llseek, 625 }; 626 627 static ssize_t dtim_interval_read(struct file *file, char __user *user_buf, 628 size_t count, loff_t *ppos) 629 { 630 struct wl1271 *wl = file->private_data; 631 u8 value; 632 633 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM || 634 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM) 635 value = wl->conf.conn.listen_interval; 636 else 637 value = 0; 638 639 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); 640 } 641 642 static ssize_t dtim_interval_write(struct file *file, 643 const char __user *user_buf, 644 size_t count, loff_t *ppos) 645 { 646 struct wl1271 *wl = file->private_data; 647 unsigned long value; 648 int ret; 649 650 ret = kstrtoul_from_user(user_buf, count, 10, &value); 651 if (ret < 0) { 652 wl1271_warning("illegal value for dtim_interval"); 653 return -EINVAL; 654 } 655 656 if (value < 1 || value > 10) { 657 wl1271_warning("dtim value is not in valid range"); 658 return -ERANGE; 659 } 660 661 mutex_lock(&wl->mutex); 662 663 wl->conf.conn.listen_interval = value; 664 /* for some reason there are different event types for 1 and >1 */ 665 if (value == 1) 666 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM; 667 else 668 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM; 669 670 /* 671 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only 672 * take effect on the next time we enter psm. 673 */ 674 mutex_unlock(&wl->mutex); 675 return count; 676 } 677 678 static const struct file_operations dtim_interval_ops = { 679 .read = dtim_interval_read, 680 .write = dtim_interval_write, 681 .open = simple_open, 682 .llseek = default_llseek, 683 }; 684 685 686 687 static ssize_t suspend_dtim_interval_read(struct file *file, 688 char __user *user_buf, 689 size_t count, loff_t *ppos) 690 { 691 struct wl1271 *wl = file->private_data; 692 u8 value; 693 694 if (wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_DTIM || 695 wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM) 696 value = wl->conf.conn.suspend_listen_interval; 697 else 698 value = 0; 699 700 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); 701 } 702 703 static ssize_t suspend_dtim_interval_write(struct file *file, 704 const char __user *user_buf, 705 size_t count, loff_t *ppos) 706 { 707 struct wl1271 *wl = file->private_data; 708 unsigned long value; 709 int ret; 710 711 ret = kstrtoul_from_user(user_buf, count, 10, &value); 712 if (ret < 0) { 713 wl1271_warning("illegal value for suspend_dtim_interval"); 714 return -EINVAL; 715 } 716 717 if (value < 1 || value > 10) { 718 wl1271_warning("suspend_dtim value is not in valid range"); 719 return -ERANGE; 720 } 721 722 mutex_lock(&wl->mutex); 723 724 wl->conf.conn.suspend_listen_interval = value; 725 /* for some reason there are different event types for 1 and >1 */ 726 if (value == 1) 727 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_DTIM; 728 else 729 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM; 730 731 mutex_unlock(&wl->mutex); 732 return count; 733 } 734 735 736 static const struct file_operations suspend_dtim_interval_ops = { 737 .read = suspend_dtim_interval_read, 738 .write = suspend_dtim_interval_write, 739 .open = simple_open, 740 .llseek = default_llseek, 741 }; 742 743 static ssize_t beacon_interval_read(struct file *file, char __user *user_buf, 744 size_t count, loff_t *ppos) 745 { 746 struct wl1271 *wl = file->private_data; 747 u8 value; 748 749 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON || 750 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS) 751 value = wl->conf.conn.listen_interval; 752 else 753 value = 0; 754 755 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value); 756 } 757 758 static ssize_t beacon_interval_write(struct file *file, 759 const char __user *user_buf, 760 size_t count, loff_t *ppos) 761 { 762 struct wl1271 *wl = file->private_data; 763 unsigned long value; 764 int ret; 765 766 ret = kstrtoul_from_user(user_buf, count, 10, &value); 767 if (ret < 0) { 768 wl1271_warning("illegal value for beacon_interval"); 769 return -EINVAL; 770 } 771 772 if (value < 1 || value > 255) { 773 wl1271_warning("beacon interval value is not in valid range"); 774 return -ERANGE; 775 } 776 777 mutex_lock(&wl->mutex); 778 779 wl->conf.conn.listen_interval = value; 780 /* for some reason there are different event types for 1 and >1 */ 781 if (value == 1) 782 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON; 783 else 784 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS; 785 786 /* 787 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only 788 * take effect on the next time we enter psm. 789 */ 790 mutex_unlock(&wl->mutex); 791 return count; 792 } 793 794 static const struct file_operations beacon_interval_ops = { 795 .read = beacon_interval_read, 796 .write = beacon_interval_write, 797 .open = simple_open, 798 .llseek = default_llseek, 799 }; 800 801 static ssize_t rx_streaming_interval_write(struct file *file, 802 const char __user *user_buf, 803 size_t count, loff_t *ppos) 804 { 805 struct wl1271 *wl = file->private_data; 806 struct wl12xx_vif *wlvif; 807 unsigned long value; 808 int ret; 809 810 ret = kstrtoul_from_user(user_buf, count, 10, &value); 811 if (ret < 0) { 812 wl1271_warning("illegal value in rx_streaming_interval!"); 813 return -EINVAL; 814 } 815 816 /* valid values: 0, 10-100 */ 817 if (value && (value < 10 || value > 100)) { 818 wl1271_warning("value is not in range!"); 819 return -ERANGE; 820 } 821 822 mutex_lock(&wl->mutex); 823 824 wl->conf.rx_streaming.interval = value; 825 826 ret = wl1271_ps_elp_wakeup(wl); 827 if (ret < 0) 828 goto out; 829 830 wl12xx_for_each_wlvif_sta(wl, wlvif) { 831 wl1271_recalc_rx_streaming(wl, wlvif); 832 } 833 834 wl1271_ps_elp_sleep(wl); 835 out: 836 mutex_unlock(&wl->mutex); 837 return count; 838 } 839 840 static 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 } 848 849 static 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 }; 855 856 static 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 = wl1271_ps_elp_wakeup(wl); 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 wl1271_ps_elp_sleep(wl); 890 out: 891 mutex_unlock(&wl->mutex); 892 return count; 893 } 894 895 static ssize_t rx_streaming_always_read(struct file *file, 896 char __user *userbuf, 897 size_t count, loff_t *ppos) 898 { 899 struct wl1271 *wl = file->private_data; 900 return wl1271_format_buffer(userbuf, count, ppos, 901 "%d\n", wl->conf.rx_streaming.always); 902 } 903 904 static const struct file_operations rx_streaming_always_ops = { 905 .read = rx_streaming_always_read, 906 .write = rx_streaming_always_write, 907 .open = simple_open, 908 .llseek = default_llseek, 909 }; 910 911 static ssize_t beacon_filtering_write(struct file *file, 912 const char __user *user_buf, 913 size_t count, loff_t *ppos) 914 { 915 struct wl1271 *wl = file->private_data; 916 struct wl12xx_vif *wlvif; 917 char buf[10]; 918 size_t len; 919 unsigned long value; 920 int ret; 921 922 len = min(count, sizeof(buf) - 1); 923 if (copy_from_user(buf, user_buf, len)) 924 return -EFAULT; 925 buf[len] = '\0'; 926 927 ret = kstrtoul(buf, 0, &value); 928 if (ret < 0) { 929 wl1271_warning("illegal value for beacon_filtering!"); 930 return -EINVAL; 931 } 932 933 mutex_lock(&wl->mutex); 934 935 ret = wl1271_ps_elp_wakeup(wl); 936 if (ret < 0) 937 goto out; 938 939 wl12xx_for_each_wlvif(wl, wlvif) { 940 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value); 941 } 942 943 wl1271_ps_elp_sleep(wl); 944 out: 945 mutex_unlock(&wl->mutex); 946 return count; 947 } 948 949 static const struct file_operations beacon_filtering_ops = { 950 .write = beacon_filtering_write, 951 .open = simple_open, 952 .llseek = default_llseek, 953 }; 954 955 static ssize_t fw_stats_raw_read(struct file *file, 956 char __user *userbuf, 957 size_t count, loff_t *ppos) 958 { 959 struct wl1271 *wl = file->private_data; 960 961 wl1271_debugfs_update_stats(wl); 962 963 return simple_read_from_buffer(userbuf, count, ppos, 964 wl->stats.fw_stats, 965 wl->stats.fw_stats_len); 966 } 967 968 static const struct file_operations fw_stats_raw_ops = { 969 .read = fw_stats_raw_read, 970 .open = simple_open, 971 .llseek = default_llseek, 972 }; 973 974 static ssize_t sleep_auth_read(struct file *file, char __user *user_buf, 975 size_t count, loff_t *ppos) 976 { 977 struct wl1271 *wl = file->private_data; 978 979 return wl1271_format_buffer(user_buf, count, 980 ppos, "%d\n", 981 wl->sleep_auth); 982 } 983 984 static ssize_t sleep_auth_write(struct file *file, 985 const char __user *user_buf, 986 size_t count, loff_t *ppos) 987 { 988 struct wl1271 *wl = file->private_data; 989 unsigned long value; 990 int ret; 991 992 ret = kstrtoul_from_user(user_buf, count, 0, &value); 993 if (ret < 0) { 994 wl1271_warning("illegal value in sleep_auth"); 995 return -EINVAL; 996 } 997 998 if (value > WL1271_PSM_MAX) { 999 wl1271_warning("sleep_auth must be between 0 and %d", 1000 WL1271_PSM_MAX); 1001 return -ERANGE; 1002 } 1003 1004 mutex_lock(&wl->mutex); 1005 1006 wl->conf.conn.sta_sleep_auth = value; 1007 1008 if (unlikely(wl->state != WLCORE_STATE_ON)) { 1009 /* this will show up on "read" in case we are off */ 1010 wl->sleep_auth = value; 1011 goto out; 1012 } 1013 1014 ret = wl1271_ps_elp_wakeup(wl); 1015 if (ret < 0) 1016 goto out; 1017 1018 ret = wl1271_acx_sleep_auth(wl, value); 1019 if (ret < 0) 1020 goto out_sleep; 1021 1022 out_sleep: 1023 wl1271_ps_elp_sleep(wl); 1024 out: 1025 mutex_unlock(&wl->mutex); 1026 return count; 1027 } 1028 1029 static const struct file_operations sleep_auth_ops = { 1030 .read = sleep_auth_read, 1031 .write = sleep_auth_write, 1032 .open = simple_open, 1033 .llseek = default_llseek, 1034 }; 1035 1036 static ssize_t dev_mem_read(struct file *file, 1037 char __user *user_buf, size_t count, 1038 loff_t *ppos) 1039 { 1040 struct wl1271 *wl = file->private_data; 1041 struct wlcore_partition_set part, old_part; 1042 size_t bytes = count; 1043 int ret; 1044 char *buf; 1045 1046 /* only requests of dword-aligned size and offset are supported */ 1047 if (bytes % 4) 1048 return -EINVAL; 1049 1050 if (*ppos % 4) 1051 return -EINVAL; 1052 1053 /* function should return in reasonable time */ 1054 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE); 1055 1056 if (bytes == 0) 1057 return -EINVAL; 1058 1059 memset(&part, 0, sizeof(part)); 1060 part.mem.start = file->f_pos; 1061 part.mem.size = bytes; 1062 1063 buf = kmalloc(bytes, GFP_KERNEL); 1064 if (!buf) 1065 return -ENOMEM; 1066 1067 mutex_lock(&wl->mutex); 1068 1069 if (unlikely(wl->state == WLCORE_STATE_OFF)) { 1070 ret = -EFAULT; 1071 goto skip_read; 1072 } 1073 1074 /* 1075 * Don't fail if elp_wakeup returns an error, so the device's memory 1076 * could be read even if the FW crashed 1077 */ 1078 wl1271_ps_elp_wakeup(wl); 1079 1080 /* store current partition and switch partition */ 1081 memcpy(&old_part, &wl->curr_part, sizeof(old_part)); 1082 ret = wlcore_set_partition(wl, &part); 1083 if (ret < 0) 1084 goto part_err; 1085 1086 ret = wlcore_raw_read(wl, 0, buf, bytes, false); 1087 if (ret < 0) 1088 goto read_err; 1089 1090 read_err: 1091 /* recover partition */ 1092 ret = wlcore_set_partition(wl, &old_part); 1093 if (ret < 0) 1094 goto part_err; 1095 1096 part_err: 1097 wl1271_ps_elp_sleep(wl); 1098 1099 skip_read: 1100 mutex_unlock(&wl->mutex); 1101 1102 if (ret == 0) { 1103 ret = copy_to_user(user_buf, buf, bytes); 1104 if (ret < bytes) { 1105 bytes -= ret; 1106 *ppos += bytes; 1107 ret = 0; 1108 } else { 1109 ret = -EFAULT; 1110 } 1111 } 1112 1113 kfree(buf); 1114 1115 return ((ret == 0) ? bytes : ret); 1116 } 1117 1118 static ssize_t dev_mem_write(struct file *file, const char __user *user_buf, 1119 size_t count, loff_t *ppos) 1120 { 1121 struct wl1271 *wl = file->private_data; 1122 struct wlcore_partition_set part, old_part; 1123 size_t bytes = count; 1124 int ret; 1125 char *buf; 1126 1127 /* only requests of dword-aligned size and offset are supported */ 1128 if (bytes % 4) 1129 return -EINVAL; 1130 1131 if (*ppos % 4) 1132 return -EINVAL; 1133 1134 /* function should return in reasonable time */ 1135 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE); 1136 1137 if (bytes == 0) 1138 return -EINVAL; 1139 1140 memset(&part, 0, sizeof(part)); 1141 part.mem.start = file->f_pos; 1142 part.mem.size = bytes; 1143 1144 buf = kmalloc(bytes, GFP_KERNEL); 1145 if (!buf) 1146 return -ENOMEM; 1147 1148 ret = copy_from_user(buf, user_buf, bytes); 1149 if (ret) { 1150 ret = -EFAULT; 1151 goto err_out; 1152 } 1153 1154 mutex_lock(&wl->mutex); 1155 1156 if (unlikely(wl->state == WLCORE_STATE_OFF)) { 1157 ret = -EFAULT; 1158 goto skip_write; 1159 } 1160 1161 /* 1162 * Don't fail if elp_wakeup returns an error, so the device's memory 1163 * could be read even if the FW crashed 1164 */ 1165 wl1271_ps_elp_wakeup(wl); 1166 1167 /* store current partition and switch partition */ 1168 memcpy(&old_part, &wl->curr_part, sizeof(old_part)); 1169 ret = wlcore_set_partition(wl, &part); 1170 if (ret < 0) 1171 goto part_err; 1172 1173 ret = wlcore_raw_write(wl, 0, buf, bytes, false); 1174 if (ret < 0) 1175 goto write_err; 1176 1177 write_err: 1178 /* recover partition */ 1179 ret = wlcore_set_partition(wl, &old_part); 1180 if (ret < 0) 1181 goto part_err; 1182 1183 part_err: 1184 wl1271_ps_elp_sleep(wl); 1185 1186 skip_write: 1187 mutex_unlock(&wl->mutex); 1188 1189 if (ret == 0) 1190 *ppos += bytes; 1191 1192 err_out: 1193 kfree(buf); 1194 1195 return ((ret == 0) ? bytes : ret); 1196 } 1197 1198 static loff_t dev_mem_seek(struct file *file, loff_t offset, int orig) 1199 { 1200 loff_t ret; 1201 1202 /* only requests of dword-aligned size and offset are supported */ 1203 if (offset % 4) 1204 return -EINVAL; 1205 1206 switch (orig) { 1207 case SEEK_SET: 1208 file->f_pos = offset; 1209 ret = file->f_pos; 1210 break; 1211 case SEEK_CUR: 1212 file->f_pos += offset; 1213 ret = file->f_pos; 1214 break; 1215 default: 1216 ret = -EINVAL; 1217 } 1218 1219 return ret; 1220 } 1221 1222 static const struct file_operations dev_mem_ops = { 1223 .open = simple_open, 1224 .read = dev_mem_read, 1225 .write = dev_mem_write, 1226 .llseek = dev_mem_seek, 1227 }; 1228 1229 static int wl1271_debugfs_add_files(struct wl1271 *wl, 1230 struct dentry *rootdir) 1231 { 1232 int ret = 0; 1233 struct dentry *entry, *streaming; 1234 1235 DEBUGFS_ADD(tx_queue_len, rootdir); 1236 DEBUGFS_ADD(retry_count, rootdir); 1237 DEBUGFS_ADD(excessive_retries, rootdir); 1238 1239 DEBUGFS_ADD(gpio_power, rootdir); 1240 DEBUGFS_ADD(start_recovery, rootdir); 1241 DEBUGFS_ADD(driver_state, rootdir); 1242 DEBUGFS_ADD(vifs_state, rootdir); 1243 DEBUGFS_ADD(dtim_interval, rootdir); 1244 DEBUGFS_ADD(suspend_dtim_interval, rootdir); 1245 DEBUGFS_ADD(beacon_interval, rootdir); 1246 DEBUGFS_ADD(beacon_filtering, rootdir); 1247 DEBUGFS_ADD(dynamic_ps_timeout, rootdir); 1248 DEBUGFS_ADD(forced_ps, rootdir); 1249 DEBUGFS_ADD(split_scan_timeout, rootdir); 1250 DEBUGFS_ADD(irq_pkt_threshold, rootdir); 1251 DEBUGFS_ADD(irq_blk_threshold, rootdir); 1252 DEBUGFS_ADD(irq_timeout, rootdir); 1253 DEBUGFS_ADD(fw_stats_raw, rootdir); 1254 DEBUGFS_ADD(sleep_auth, rootdir); 1255 1256 streaming = debugfs_create_dir("rx_streaming", rootdir); 1257 if (!streaming || IS_ERR(streaming)) 1258 goto err; 1259 1260 DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming); 1261 DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming); 1262 1263 DEBUGFS_ADD_PREFIX(dev, mem, rootdir); 1264 1265 return 0; 1266 1267 err: 1268 if (IS_ERR(entry)) 1269 ret = PTR_ERR(entry); 1270 else 1271 ret = -ENOMEM; 1272 1273 return ret; 1274 } 1275 1276 void wl1271_debugfs_reset(struct wl1271 *wl) 1277 { 1278 if (!wl->stats.fw_stats) 1279 return; 1280 1281 memset(wl->stats.fw_stats, 0, wl->stats.fw_stats_len); 1282 wl->stats.retry_count = 0; 1283 wl->stats.excessive_retries = 0; 1284 } 1285 1286 int wl1271_debugfs_init(struct wl1271 *wl) 1287 { 1288 int ret; 1289 struct dentry *rootdir; 1290 1291 rootdir = debugfs_create_dir(KBUILD_MODNAME, 1292 wl->hw->wiphy->debugfsdir); 1293 1294 if (IS_ERR(rootdir)) { 1295 ret = PTR_ERR(rootdir); 1296 goto out; 1297 } 1298 1299 wl->stats.fw_stats = kzalloc(wl->stats.fw_stats_len, GFP_KERNEL); 1300 if (!wl->stats.fw_stats) { 1301 ret = -ENOMEM; 1302 goto out_remove; 1303 } 1304 1305 wl->stats.fw_stats_update = jiffies; 1306 1307 ret = wl1271_debugfs_add_files(wl, rootdir); 1308 if (ret < 0) 1309 goto out_exit; 1310 1311 ret = wlcore_debugfs_init(wl, rootdir); 1312 if (ret < 0) 1313 goto out_exit; 1314 1315 goto out; 1316 1317 out_exit: 1318 wl1271_debugfs_exit(wl); 1319 1320 out_remove: 1321 debugfs_remove_recursive(rootdir); 1322 1323 out: 1324 return ret; 1325 } 1326 1327 void wl1271_debugfs_exit(struct wl1271 *wl) 1328 { 1329 kfree(wl->stats.fw_stats); 1330 wl->stats.fw_stats = NULL; 1331 } 1332