cmd.c revision b9a9ada14aab17f08c1d9735601f1097cdcfc6de
1/* 2 * This file is part of wl1271 3 * 4 * Copyright (C) 2009-2010 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 <linux/module.h> 25#include <linux/platform_device.h> 26#include <linux/spi/spi.h> 27#include <linux/etherdevice.h> 28#include <linux/ieee80211.h> 29#include <linux/slab.h> 30 31#include "wlcore.h" 32#include "debug.h" 33#include "io.h" 34#include "acx.h" 35#include "wl12xx_80211.h" 36#include "cmd.h" 37#include "event.h" 38#include "tx.h" 39#include "hw_ops.h" 40 41#define WL1271_CMD_FAST_POLL_COUNT 50 42#define WL1271_WAIT_EVENT_FAST_POLL_COUNT 20 43 44/* 45 * send command to firmware 46 * 47 * @wl: wl struct 48 * @id: command id 49 * @buf: buffer containing the command, must work with dma 50 * @len: length of the buffer 51 */ 52int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len, 53 size_t res_len) 54{ 55 struct wl1271_cmd_header *cmd; 56 unsigned long timeout; 57 u32 intr; 58 int ret = 0; 59 u16 status; 60 u16 poll_count = 0; 61 62 if (WARN_ON(unlikely(wl->state == WLCORE_STATE_RESTARTING))) 63 return -EIO; 64 65 cmd = buf; 66 cmd->id = cpu_to_le16(id); 67 cmd->status = 0; 68 69 WARN_ON(len % 4 != 0); 70 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags)); 71 72 ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false); 73 if (ret < 0) 74 goto fail; 75 76 /* 77 * TODO: we just need this because one bit is in a different 78 * place. Is there any better way? 79 */ 80 ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len); 81 if (ret < 0) 82 goto fail; 83 84 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT); 85 86 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); 87 if (ret < 0) 88 goto fail; 89 90 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) { 91 if (time_after(jiffies, timeout)) { 92 wl1271_error("command complete timeout"); 93 ret = -ETIMEDOUT; 94 goto fail; 95 } 96 97 poll_count++; 98 if (poll_count < WL1271_CMD_FAST_POLL_COUNT) 99 udelay(10); 100 else 101 msleep(1); 102 103 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); 104 if (ret < 0) 105 goto fail; 106 } 107 108 /* read back the status code of the command */ 109 if (res_len == 0) 110 res_len = sizeof(struct wl1271_cmd_header); 111 112 ret = wlcore_read(wl, wl->cmd_box_addr, cmd, res_len, false); 113 if (ret < 0) 114 goto fail; 115 116 status = le16_to_cpu(cmd->status); 117 if (status != CMD_STATUS_SUCCESS) { 118 wl1271_error("command execute failure %d", status); 119 ret = -EIO; 120 goto fail; 121 } 122 123 ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK, 124 WL1271_ACX_INTR_CMD_COMPLETE); 125 if (ret < 0) 126 goto fail; 127 128 return 0; 129 130fail: 131 wl12xx_queue_recovery_work(wl); 132 return ret; 133} 134 135/* 136 * Poll the mailbox event field until any of the bits in the mask is set or a 137 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs) 138 */ 139static int wl1271_cmd_wait_for_event_or_timeout(struct wl1271 *wl, 140 u32 mask, bool *timeout) 141{ 142 u32 *events_vector; 143 u32 event; 144 unsigned long timeout_time; 145 u16 poll_count = 0; 146 int ret = 0; 147 148 *timeout = false; 149 150 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA); 151 if (!events_vector) 152 return -ENOMEM; 153 154 timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT); 155 156 do { 157 if (time_after(jiffies, timeout_time)) { 158 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d", 159 (int)mask); 160 *timeout = true; 161 goto out; 162 } 163 164 poll_count++; 165 if (poll_count < WL1271_WAIT_EVENT_FAST_POLL_COUNT) 166 usleep_range(50, 51); 167 else 168 usleep_range(1000, 5000); 169 170 /* read from both event fields */ 171 ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector, 172 sizeof(*events_vector), false); 173 if (ret < 0) 174 goto out; 175 176 event = *events_vector & mask; 177 178 ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector, 179 sizeof(*events_vector), false); 180 if (ret < 0) 181 goto out; 182 183 event |= *events_vector & mask; 184 } while (!event); 185 186out: 187 kfree(events_vector); 188 return ret; 189} 190 191static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask) 192{ 193 int ret; 194 bool timeout = false; 195 196 ret = wl1271_cmd_wait_for_event_or_timeout(wl, mask, &timeout); 197 if (ret != 0 || timeout) { 198 wl12xx_queue_recovery_work(wl); 199 return ret; 200 } 201 202 return 0; 203} 204 205int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type, 206 u8 *role_id) 207{ 208 struct wl12xx_cmd_role_enable *cmd; 209 int ret; 210 211 wl1271_debug(DEBUG_CMD, "cmd role enable"); 212 213 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID)) 214 return -EBUSY; 215 216 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 217 if (!cmd) { 218 ret = -ENOMEM; 219 goto out; 220 } 221 222 /* get role id */ 223 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES); 224 if (cmd->role_id >= WL12XX_MAX_ROLES) { 225 ret = -EBUSY; 226 goto out_free; 227 } 228 229 memcpy(cmd->mac_address, addr, ETH_ALEN); 230 cmd->role_type = role_type; 231 232 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0); 233 if (ret < 0) { 234 wl1271_error("failed to initiate cmd role enable"); 235 goto out_free; 236 } 237 238 __set_bit(cmd->role_id, wl->roles_map); 239 *role_id = cmd->role_id; 240 241out_free: 242 kfree(cmd); 243 244out: 245 return ret; 246} 247 248int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id) 249{ 250 struct wl12xx_cmd_role_disable *cmd; 251 int ret; 252 253 wl1271_debug(DEBUG_CMD, "cmd role disable"); 254 255 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID)) 256 return -ENOENT; 257 258 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 259 if (!cmd) { 260 ret = -ENOMEM; 261 goto out; 262 } 263 cmd->role_id = *role_id; 264 265 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0); 266 if (ret < 0) { 267 wl1271_error("failed to initiate cmd role disable"); 268 goto out_free; 269 } 270 271 __clear_bit(*role_id, wl->roles_map); 272 *role_id = WL12XX_INVALID_ROLE_ID; 273 274out_free: 275 kfree(cmd); 276 277out: 278 return ret; 279} 280 281int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 282{ 283 unsigned long flags; 284 u8 link = find_first_zero_bit(wl->links_map, WL12XX_MAX_LINKS); 285 if (link >= WL12XX_MAX_LINKS) 286 return -EBUSY; 287 288 /* these bits are used by op_tx */ 289 spin_lock_irqsave(&wl->wl_lock, flags); 290 __set_bit(link, wl->links_map); 291 __set_bit(link, wlvif->links_map); 292 spin_unlock_irqrestore(&wl->wl_lock, flags); 293 *hlid = link; 294 return 0; 295} 296 297void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 298{ 299 unsigned long flags; 300 301 if (*hlid == WL12XX_INVALID_LINK_ID) 302 return; 303 304 /* these bits are used by op_tx */ 305 spin_lock_irqsave(&wl->wl_lock, flags); 306 __clear_bit(*hlid, wl->links_map); 307 __clear_bit(*hlid, wlvif->links_map); 308 spin_unlock_irqrestore(&wl->wl_lock, flags); 309 310 /* 311 * At this point op_tx() will not add more packets to the queues. We 312 * can purge them. 313 */ 314 wl1271_tx_reset_link_queues(wl, *hlid); 315 316 *hlid = WL12XX_INVALID_LINK_ID; 317} 318 319static int wl12xx_get_new_session_id(struct wl1271 *wl, 320 struct wl12xx_vif *wlvif) 321{ 322 if (wlvif->session_counter >= SESSION_COUNTER_MAX) 323 wlvif->session_counter = 0; 324 325 wlvif->session_counter++; 326 327 return wlvif->session_counter; 328} 329 330static u8 wlcore_get_native_channel_type(u8 nl_channel_type) 331{ 332 switch (nl_channel_type) { 333 case NL80211_CHAN_NO_HT: 334 return WLCORE_CHAN_NO_HT; 335 case NL80211_CHAN_HT20: 336 return WLCORE_CHAN_HT20; 337 case NL80211_CHAN_HT40MINUS: 338 return WLCORE_CHAN_HT40MINUS; 339 case NL80211_CHAN_HT40PLUS: 340 return WLCORE_CHAN_HT40PLUS; 341 default: 342 WARN_ON(1); 343 return WLCORE_CHAN_NO_HT; 344 } 345} 346 347static int wl12xx_cmd_role_start_dev(struct wl1271 *wl, 348 struct wl12xx_vif *wlvif) 349{ 350 struct wl12xx_cmd_role_start *cmd; 351 int ret; 352 353 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 354 if (!cmd) { 355 ret = -ENOMEM; 356 goto out; 357 } 358 359 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id); 360 361 cmd->role_id = wlvif->dev_role_id; 362 if (wlvif->band == IEEE80211_BAND_5GHZ) 363 cmd->band = WLCORE_BAND_5GHZ; 364 cmd->channel = wlvif->channel; 365 366 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) { 367 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid); 368 if (ret) 369 goto out_free; 370 } 371 cmd->device.hlid = wlvif->dev_hlid; 372 cmd->device.session = wl12xx_get_new_session_id(wl, wlvif); 373 374 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d", 375 cmd->role_id, cmd->device.hlid, cmd->device.session); 376 377 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 378 if (ret < 0) { 379 wl1271_error("failed to initiate cmd role enable"); 380 goto err_hlid; 381 } 382 383 goto out_free; 384 385err_hlid: 386 /* clear links on error */ 387 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 388 389out_free: 390 kfree(cmd); 391 392out: 393 return ret; 394} 395 396static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, 397 struct wl12xx_vif *wlvif) 398{ 399 struct wl12xx_cmd_role_stop *cmd; 400 int ret; 401 402 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID)) 403 return -EINVAL; 404 405 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 406 if (!cmd) { 407 ret = -ENOMEM; 408 goto out; 409 } 410 411 wl1271_debug(DEBUG_CMD, "cmd role stop dev"); 412 413 cmd->role_id = wlvif->dev_role_id; 414 cmd->disc_type = DISCONNECT_IMMEDIATE; 415 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 416 417 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 418 if (ret < 0) { 419 wl1271_error("failed to initiate cmd role stop"); 420 goto out_free; 421 } 422 423 ret = wl1271_cmd_wait_for_event(wl, ROLE_STOP_COMPLETE_EVENT_ID); 424 if (ret < 0) { 425 wl1271_error("cmd role stop dev event completion error"); 426 goto out_free; 427 } 428 429 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 430 431out_free: 432 kfree(cmd); 433 434out: 435 return ret; 436} 437 438int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 439{ 440 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 441 struct wl12xx_cmd_role_start *cmd; 442 int ret; 443 444 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 445 if (!cmd) { 446 ret = -ENOMEM; 447 goto out; 448 } 449 450 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id); 451 452 cmd->role_id = wlvif->role_id; 453 if (wlvif->band == IEEE80211_BAND_5GHZ) 454 cmd->band = WLCORE_BAND_5GHZ; 455 cmd->channel = wlvif->channel; 456 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 457 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int); 458 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY; 459 cmd->sta.ssid_len = wlvif->ssid_len; 460 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len); 461 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN); 462 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 463 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 464 465 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 466 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 467 if (ret) 468 goto out_free; 469 } 470 cmd->sta.hlid = wlvif->sta.hlid; 471 cmd->sta.session = wl12xx_get_new_session_id(wl, wlvif); 472 cmd->sta.remote_rates = cpu_to_le32(wlvif->rate_set); 473 474 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 475 "basic_rate_set: 0x%x, remote_rates: 0x%x", 476 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 477 wlvif->basic_rate_set, wlvif->rate_set); 478 479 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 480 if (ret < 0) { 481 wl1271_error("failed to initiate cmd role start sta"); 482 goto err_hlid; 483 } 484 485 goto out_free; 486 487err_hlid: 488 /* clear links on error. */ 489 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 490 491out_free: 492 kfree(cmd); 493 494out: 495 return ret; 496} 497 498/* use this function to stop ibss as well */ 499int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 500{ 501 struct wl12xx_cmd_role_stop *cmd; 502 int ret; 503 bool timeout = false; 504 505 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)) 506 return -EINVAL; 507 508 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 509 if (!cmd) { 510 ret = -ENOMEM; 511 goto out; 512 } 513 514 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id); 515 516 cmd->role_id = wlvif->role_id; 517 cmd->disc_type = DISCONNECT_IMMEDIATE; 518 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 519 520 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 521 if (ret < 0) { 522 wl1271_error("failed to initiate cmd role stop sta"); 523 goto out_free; 524 } 525 526 /* 527 * Sometimes the firmware doesn't send this event, so we just 528 * time out without failing. Queue recovery for other 529 * failures. 530 */ 531 ret = wl1271_cmd_wait_for_event_or_timeout(wl, 532 ROLE_STOP_COMPLETE_EVENT_ID, 533 &timeout); 534 if (ret) 535 wl12xx_queue_recovery_work(wl); 536 537 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 538 539out_free: 540 kfree(cmd); 541 542out: 543 return ret; 544} 545 546int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 547{ 548 struct wl12xx_cmd_role_start *cmd; 549 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 550 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 551 u32 supported_rates; 552 int ret; 553 554 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id); 555 556 /* trying to use hidden SSID with an old hostapd version */ 557 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) { 558 wl1271_error("got a null SSID from beacon/bss"); 559 ret = -EINVAL; 560 goto out; 561 } 562 563 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 564 if (!cmd) { 565 ret = -ENOMEM; 566 goto out; 567 } 568 569 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid); 570 if (ret < 0) 571 goto out_free; 572 573 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid); 574 if (ret < 0) 575 goto out_free_global; 576 577 cmd->role_id = wlvif->role_id; 578 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period); 579 cmd->ap.bss_index = WL1271_AP_BSS_INDEX; 580 cmd->ap.global_hlid = wlvif->ap.global_hlid; 581 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid; 582 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 583 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int); 584 cmd->ap.dtim_interval = bss_conf->dtim_period; 585 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP; 586 /* FIXME: Change when adding DFS */ 587 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */ 588 cmd->channel = wlvif->channel; 589 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 590 591 if (!bss_conf->hidden_ssid) { 592 /* take the SSID from the beacon for backward compatibility */ 593 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC; 594 cmd->ap.ssid_len = wlvif->ssid_len; 595 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len); 596 } else { 597 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN; 598 cmd->ap.ssid_len = bss_conf->ssid_len; 599 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len); 600 } 601 602 supported_rates = CONF_TX_AP_ENABLED_RATES | CONF_TX_MCS_RATES | 603 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif); 604 605 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x", 606 supported_rates); 607 608 cmd->ap.local_rates = cpu_to_le32(supported_rates); 609 610 switch (wlvif->band) { 611 case IEEE80211_BAND_2GHZ: 612 cmd->band = WLCORE_BAND_2_4GHZ; 613 break; 614 case IEEE80211_BAND_5GHZ: 615 cmd->band = WLCORE_BAND_5GHZ; 616 break; 617 default: 618 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band); 619 cmd->band = WLCORE_BAND_2_4GHZ; 620 break; 621 } 622 623 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 624 if (ret < 0) { 625 wl1271_error("failed to initiate cmd role start ap"); 626 goto out_free_bcast; 627 } 628 629 goto out_free; 630 631out_free_bcast: 632 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 633 634out_free_global: 635 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 636 637out_free: 638 kfree(cmd); 639 640out: 641 return ret; 642} 643 644int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 645{ 646 struct wl12xx_cmd_role_stop *cmd; 647 int ret; 648 649 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 650 if (!cmd) { 651 ret = -ENOMEM; 652 goto out; 653 } 654 655 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id); 656 657 cmd->role_id = wlvif->role_id; 658 659 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 660 if (ret < 0) { 661 wl1271_error("failed to initiate cmd role stop ap"); 662 goto out_free; 663 } 664 665 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 666 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 667 668out_free: 669 kfree(cmd); 670 671out: 672 return ret; 673} 674 675int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif) 676{ 677 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 678 struct wl12xx_cmd_role_start *cmd; 679 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 680 int ret; 681 682 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 683 if (!cmd) { 684 ret = -ENOMEM; 685 goto out; 686 } 687 688 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id); 689 690 cmd->role_id = wlvif->role_id; 691 if (wlvif->band == IEEE80211_BAND_5GHZ) 692 cmd->band = WLCORE_BAND_5GHZ; 693 cmd->channel = wlvif->channel; 694 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 695 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int); 696 cmd->ibss.dtim_interval = bss_conf->dtim_period; 697 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY; 698 cmd->ibss.ssid_len = wlvif->ssid_len; 699 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len); 700 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN); 701 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 702 703 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 704 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 705 if (ret) 706 goto out_free; 707 } 708 cmd->ibss.hlid = wlvif->sta.hlid; 709 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set); 710 711 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 712 "basic_rate_set: 0x%x, remote_rates: 0x%x", 713 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 714 wlvif->basic_rate_set, wlvif->rate_set); 715 716 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM", 717 vif->bss_conf.bssid); 718 719 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 720 if (ret < 0) { 721 wl1271_error("failed to initiate cmd role enable"); 722 goto err_hlid; 723 } 724 725 goto out_free; 726 727err_hlid: 728 /* clear links on error. */ 729 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 730 731out_free: 732 kfree(cmd); 733 734out: 735 return ret; 736} 737 738 739/** 740 * send test command to firmware 741 * 742 * @wl: wl struct 743 * @buf: buffer containing the command, with all headers, must work with dma 744 * @len: length of the buffer 745 * @answer: is answer needed 746 */ 747int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer) 748{ 749 int ret; 750 size_t res_len = 0; 751 752 wl1271_debug(DEBUG_CMD, "cmd test"); 753 754 if (answer) 755 res_len = buf_len; 756 757 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len); 758 759 if (ret < 0) { 760 wl1271_warning("TEST command failed"); 761 return ret; 762 } 763 764 return ret; 765} 766EXPORT_SYMBOL_GPL(wl1271_cmd_test); 767 768/** 769 * read acx from firmware 770 * 771 * @wl: wl struct 772 * @id: acx id 773 * @buf: buffer for the response, including all headers, must work with dma 774 * @len: length of buf 775 */ 776int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len) 777{ 778 struct acx_header *acx = buf; 779 int ret; 780 781 wl1271_debug(DEBUG_CMD, "cmd interrogate"); 782 783 acx->id = cpu_to_le16(id); 784 785 /* payload length, does not include any headers */ 786 acx->len = cpu_to_le16(len - sizeof(*acx)); 787 788 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len); 789 if (ret < 0) 790 wl1271_error("INTERROGATE command failed"); 791 792 return ret; 793} 794 795/** 796 * write acx value to firmware 797 * 798 * @wl: wl struct 799 * @id: acx id 800 * @buf: buffer containing acx, including all headers, must work with dma 801 * @len: length of buf 802 */ 803int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len) 804{ 805 struct acx_header *acx = buf; 806 int ret; 807 808 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id); 809 810 acx->id = cpu_to_le16(id); 811 812 /* payload length, does not include any headers */ 813 acx->len = cpu_to_le16(len - sizeof(*acx)); 814 815 ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0); 816 if (ret < 0) { 817 wl1271_warning("CONFIGURE command NOK"); 818 return ret; 819 } 820 821 return 0; 822} 823EXPORT_SYMBOL_GPL(wl1271_cmd_configure); 824 825int wl1271_cmd_data_path(struct wl1271 *wl, bool enable) 826{ 827 struct cmd_enabledisable_path *cmd; 828 int ret; 829 u16 cmd_rx, cmd_tx; 830 831 wl1271_debug(DEBUG_CMD, "cmd data path"); 832 833 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 834 if (!cmd) { 835 ret = -ENOMEM; 836 goto out; 837 } 838 839 /* the channel here is only used for calibration, so hardcoded to 1 */ 840 cmd->channel = 1; 841 842 if (enable) { 843 cmd_rx = CMD_ENABLE_RX; 844 cmd_tx = CMD_ENABLE_TX; 845 } else { 846 cmd_rx = CMD_DISABLE_RX; 847 cmd_tx = CMD_DISABLE_TX; 848 } 849 850 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0); 851 if (ret < 0) { 852 wl1271_error("rx %s cmd for channel %d failed", 853 enable ? "start" : "stop", cmd->channel); 854 goto out; 855 } 856 857 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d", 858 enable ? "start" : "stop", cmd->channel); 859 860 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0); 861 if (ret < 0) { 862 wl1271_error("tx %s cmd for channel %d failed", 863 enable ? "start" : "stop", cmd->channel); 864 goto out; 865 } 866 867 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d", 868 enable ? "start" : "stop", cmd->channel); 869 870out: 871 kfree(cmd); 872 return ret; 873} 874EXPORT_SYMBOL_GPL(wl1271_cmd_data_path); 875 876int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif, 877 u8 ps_mode, u16 auto_ps_timeout) 878{ 879 struct wl1271_cmd_ps_params *ps_params = NULL; 880 int ret = 0; 881 882 wl1271_debug(DEBUG_CMD, "cmd set ps mode"); 883 884 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL); 885 if (!ps_params) { 886 ret = -ENOMEM; 887 goto out; 888 } 889 890 ps_params->role_id = wlvif->role_id; 891 ps_params->ps_mode = ps_mode; 892 ps_params->auto_ps_timeout = auto_ps_timeout; 893 894 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params, 895 sizeof(*ps_params), 0); 896 if (ret < 0) { 897 wl1271_error("cmd set_ps_mode failed"); 898 goto out; 899 } 900 901out: 902 kfree(ps_params); 903 return ret; 904} 905 906int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id, 907 u16 template_id, void *buf, size_t buf_len, 908 int index, u32 rates) 909{ 910 struct wl1271_cmd_template_set *cmd; 911 int ret = 0; 912 913 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)", 914 template_id, role_id); 915 916 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE); 917 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE); 918 919 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 920 if (!cmd) { 921 ret = -ENOMEM; 922 goto out; 923 } 924 925 /* during initialization wlvif is NULL */ 926 cmd->role_id = role_id; 927 cmd->len = cpu_to_le16(buf_len); 928 cmd->template_type = template_id; 929 cmd->enabled_rates = cpu_to_le32(rates); 930 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit; 931 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit; 932 cmd->index = index; 933 934 if (buf) 935 memcpy(cmd->template_data, buf, buf_len); 936 937 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0); 938 if (ret < 0) { 939 wl1271_warning("cmd set_template failed: %d", ret); 940 goto out_free; 941 } 942 943out_free: 944 kfree(cmd); 945 946out: 947 return ret; 948} 949 950int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) 951{ 952 struct sk_buff *skb = NULL; 953 int size; 954 void *ptr; 955 int ret = -ENOMEM; 956 957 958 if (wlvif->bss_type == BSS_TYPE_IBSS) { 959 size = sizeof(struct wl12xx_null_data_template); 960 ptr = NULL; 961 } else { 962 skb = ieee80211_nullfunc_get(wl->hw, 963 wl12xx_wlvif_to_vif(wlvif)); 964 if (!skb) 965 goto out; 966 size = skb->len; 967 ptr = skb->data; 968 } 969 970 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 971 CMD_TEMPL_NULL_DATA, ptr, size, 0, 972 wlvif->basic_rate); 973 974out: 975 dev_kfree_skb(skb); 976 if (ret) 977 wl1271_warning("cmd buld null data failed %d", ret); 978 979 return ret; 980 981} 982 983int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, 984 struct wl12xx_vif *wlvif) 985{ 986 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 987 struct sk_buff *skb = NULL; 988 int ret = -ENOMEM; 989 990 skb = ieee80211_nullfunc_get(wl->hw, vif); 991 if (!skb) 992 goto out; 993 994 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV, 995 skb->data, skb->len, 996 wlvif->sta.klv_template_id, 997 wlvif->basic_rate); 998 999out: 1000 dev_kfree_skb(skb); 1001 if (ret) 1002 wl1271_warning("cmd build klv null data failed %d", ret); 1003 1004 return ret; 1005 1006} 1007 1008int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1009 u16 aid) 1010{ 1011 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1012 struct sk_buff *skb; 1013 int ret = 0; 1014 1015 skb = ieee80211_pspoll_get(wl->hw, vif); 1016 if (!skb) 1017 goto out; 1018 1019 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1020 CMD_TEMPL_PS_POLL, skb->data, 1021 skb->len, 0, wlvif->basic_rate_set); 1022 1023out: 1024 dev_kfree_skb(skb); 1025 return ret; 1026} 1027 1028int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1029 u8 role_id, u8 band, 1030 const u8 *ssid, size_t ssid_len, 1031 const u8 *ie, size_t ie_len, bool sched_scan) 1032{ 1033 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1034 struct sk_buff *skb; 1035 int ret; 1036 u32 rate; 1037 u16 template_id_2_4 = CMD_TEMPL_CFG_PROBE_REQ_2_4; 1038 u16 template_id_5 = CMD_TEMPL_CFG_PROBE_REQ_5; 1039 1040 skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len, 1041 ie_len); 1042 if (!skb) { 1043 ret = -ENOMEM; 1044 goto out; 1045 } 1046 if (ie_len) 1047 memcpy(skb_put(skb, ie_len), ie, ie_len); 1048 1049 wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len); 1050 1051 if (!sched_scan && 1052 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) { 1053 template_id_2_4 = CMD_TEMPL_APP_PROBE_REQ_2_4; 1054 template_id_5 = CMD_TEMPL_APP_PROBE_REQ_5; 1055 } 1056 1057 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]); 1058 if (band == IEEE80211_BAND_2GHZ) 1059 ret = wl1271_cmd_template_set(wl, role_id, 1060 template_id_2_4, 1061 skb->data, skb->len, 0, rate); 1062 else 1063 ret = wl1271_cmd_template_set(wl, role_id, 1064 template_id_5, 1065 skb->data, skb->len, 0, rate); 1066 1067out: 1068 dev_kfree_skb(skb); 1069 return ret; 1070} 1071 1072struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl, 1073 struct wl12xx_vif *wlvif, 1074 struct sk_buff *skb) 1075{ 1076 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1077 int ret; 1078 u32 rate; 1079 1080 if (!skb) 1081 skb = ieee80211_ap_probereq_get(wl->hw, vif); 1082 if (!skb) 1083 goto out; 1084 1085 wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len); 1086 1087 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]); 1088 if (wlvif->band == IEEE80211_BAND_2GHZ) 1089 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1090 CMD_TEMPL_CFG_PROBE_REQ_2_4, 1091 skb->data, skb->len, 0, rate); 1092 else 1093 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1094 CMD_TEMPL_CFG_PROBE_REQ_5, 1095 skb->data, skb->len, 0, rate); 1096 1097 if (ret < 0) 1098 wl1271_error("Unable to set ap probe request template."); 1099 1100out: 1101 return skb; 1102} 1103 1104int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1105{ 1106 int ret, extra = 0; 1107 u16 fc; 1108 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1109 struct sk_buff *skb; 1110 struct wl12xx_arp_rsp_template *tmpl; 1111 struct ieee80211_hdr_3addr *hdr; 1112 struct arphdr *arp_hdr; 1113 1114 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) + 1115 WL1271_EXTRA_SPACE_MAX); 1116 if (!skb) { 1117 wl1271_error("failed to allocate buffer for arp rsp template"); 1118 return -ENOMEM; 1119 } 1120 1121 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX); 1122 1123 tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl)); 1124 memset(tmpl, 0, sizeof(*tmpl)); 1125 1126 /* llc layer */ 1127 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header)); 1128 tmpl->llc_type = cpu_to_be16(ETH_P_ARP); 1129 1130 /* arp header */ 1131 arp_hdr = &tmpl->arp_hdr; 1132 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER); 1133 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP); 1134 arp_hdr->ar_hln = ETH_ALEN; 1135 arp_hdr->ar_pln = 4; 1136 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY); 1137 1138 /* arp payload */ 1139 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN); 1140 tmpl->sender_ip = wlvif->ip_addr; 1141 1142 /* encryption space */ 1143 switch (wlvif->encryption_type) { 1144 case KEY_TKIP: 1145 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) 1146 extra = WL1271_EXTRA_SPACE_TKIP; 1147 break; 1148 case KEY_AES: 1149 extra = WL1271_EXTRA_SPACE_AES; 1150 break; 1151 case KEY_NONE: 1152 case KEY_WEP: 1153 case KEY_GEM: 1154 extra = 0; 1155 break; 1156 default: 1157 wl1271_warning("Unknown encryption type: %d", 1158 wlvif->encryption_type); 1159 ret = -EINVAL; 1160 goto out; 1161 } 1162 1163 if (extra) { 1164 u8 *space = skb_push(skb, extra); 1165 memset(space, 0, extra); 1166 } 1167 1168 /* QoS header - BE */ 1169 if (wlvif->sta.qos) 1170 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16)); 1171 1172 /* mac80211 header */ 1173 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr)); 1174 memset(hdr, 0, sizeof(*hdr)); 1175 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS; 1176 if (wlvif->sta.qos) 1177 fc |= IEEE80211_STYPE_QOS_DATA; 1178 else 1179 fc |= IEEE80211_STYPE_DATA; 1180 if (wlvif->encryption_type != KEY_NONE) 1181 fc |= IEEE80211_FCTL_PROTECTED; 1182 1183 hdr->frame_control = cpu_to_le16(fc); 1184 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN); 1185 memcpy(hdr->addr2, vif->addr, ETH_ALEN); 1186 memset(hdr->addr3, 0xff, ETH_ALEN); 1187 1188 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP, 1189 skb->data, skb->len, 0, 1190 wlvif->basic_rate); 1191out: 1192 dev_kfree_skb(skb); 1193 return ret; 1194} 1195 1196int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif) 1197{ 1198 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 1199 struct ieee80211_qos_hdr template; 1200 1201 memset(&template, 0, sizeof(template)); 1202 1203 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN); 1204 memcpy(template.addr2, vif->addr, ETH_ALEN); 1205 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN); 1206 1207 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 1208 IEEE80211_STYPE_QOS_NULLFUNC | 1209 IEEE80211_FCTL_TODS); 1210 1211 /* FIXME: not sure what priority to use here */ 1212 template.qos_ctrl = cpu_to_le16(0); 1213 1214 return wl1271_cmd_template_set(wl, wlvif->role_id, 1215 CMD_TEMPL_QOS_NULL_DATA, &template, 1216 sizeof(template), 0, 1217 wlvif->basic_rate); 1218} 1219 1220int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid) 1221{ 1222 struct wl1271_cmd_set_keys *cmd; 1223 int ret = 0; 1224 1225 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id); 1226 1227 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1228 if (!cmd) { 1229 ret = -ENOMEM; 1230 goto out; 1231 } 1232 1233 cmd->hlid = hlid; 1234 cmd->key_id = id; 1235 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1236 cmd->key_action = cpu_to_le16(KEY_SET_ID); 1237 cmd->key_type = KEY_WEP; 1238 1239 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1240 if (ret < 0) { 1241 wl1271_warning("cmd set_default_wep_key failed: %d", ret); 1242 goto out; 1243 } 1244 1245out: 1246 kfree(cmd); 1247 1248 return ret; 1249} 1250 1251int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1252 u16 action, u8 id, u8 key_type, 1253 u8 key_size, const u8 *key, const u8 *addr, 1254 u32 tx_seq_32, u16 tx_seq_16) 1255{ 1256 struct wl1271_cmd_set_keys *cmd; 1257 int ret = 0; 1258 1259 /* hlid might have already been deleted */ 1260 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) 1261 return 0; 1262 1263 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1264 if (!cmd) { 1265 ret = -ENOMEM; 1266 goto out; 1267 } 1268 1269 cmd->hlid = wlvif->sta.hlid; 1270 1271 if (key_type == KEY_WEP) 1272 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1273 else if (is_broadcast_ether_addr(addr)) 1274 cmd->lid_key_type = BROADCAST_LID_TYPE; 1275 else 1276 cmd->lid_key_type = UNICAST_LID_TYPE; 1277 1278 cmd->key_action = cpu_to_le16(action); 1279 cmd->key_size = key_size; 1280 cmd->key_type = key_type; 1281 1282 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1283 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1284 1285 cmd->key_id = id; 1286 1287 if (key_type == KEY_TKIP) { 1288 /* 1289 * We get the key in the following form: 1290 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1291 * but the target is expecting: 1292 * TKIP - RX MIC - TX MIC 1293 */ 1294 memcpy(cmd->key, key, 16); 1295 memcpy(cmd->key + 16, key + 24, 8); 1296 memcpy(cmd->key + 24, key + 16, 8); 1297 1298 } else { 1299 memcpy(cmd->key, key, key_size); 1300 } 1301 1302 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd)); 1303 1304 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1305 if (ret < 0) { 1306 wl1271_warning("could not set keys"); 1307 goto out; 1308 } 1309 1310out: 1311 kfree(cmd); 1312 1313 return ret; 1314} 1315 1316/* 1317 * TODO: merge with sta/ibss into 1 set_key function. 1318 * note there are slight diffs 1319 */ 1320int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1321 u16 action, u8 id, u8 key_type, 1322 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32, 1323 u16 tx_seq_16) 1324{ 1325 struct wl1271_cmd_set_keys *cmd; 1326 int ret = 0; 1327 u8 lid_type; 1328 1329 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1330 if (!cmd) 1331 return -ENOMEM; 1332 1333 if (hlid == wlvif->ap.bcast_hlid) { 1334 if (key_type == KEY_WEP) 1335 lid_type = WEP_DEFAULT_LID_TYPE; 1336 else 1337 lid_type = BROADCAST_LID_TYPE; 1338 } else { 1339 lid_type = UNICAST_LID_TYPE; 1340 } 1341 1342 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d" 1343 " hlid: %d", (int)action, (int)id, (int)lid_type, 1344 (int)key_type, (int)hlid); 1345 1346 cmd->lid_key_type = lid_type; 1347 cmd->hlid = hlid; 1348 cmd->key_action = cpu_to_le16(action); 1349 cmd->key_size = key_size; 1350 cmd->key_type = key_type; 1351 cmd->key_id = id; 1352 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1353 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1354 1355 if (key_type == KEY_TKIP) { 1356 /* 1357 * We get the key in the following form: 1358 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1359 * but the target is expecting: 1360 * TKIP - RX MIC - TX MIC 1361 */ 1362 memcpy(cmd->key, key, 16); 1363 memcpy(cmd->key + 16, key + 24, 8); 1364 memcpy(cmd->key + 24, key + 16, 8); 1365 } else { 1366 memcpy(cmd->key, key, key_size); 1367 } 1368 1369 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd)); 1370 1371 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1372 if (ret < 0) { 1373 wl1271_warning("could not set ap keys"); 1374 goto out; 1375 } 1376 1377out: 1378 kfree(cmd); 1379 return ret; 1380} 1381 1382int wl12xx_cmd_set_peer_state(struct wl1271 *wl, u8 hlid) 1383{ 1384 struct wl12xx_cmd_set_peer_state *cmd; 1385 int ret = 0; 1386 1387 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid); 1388 1389 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1390 if (!cmd) { 1391 ret = -ENOMEM; 1392 goto out; 1393 } 1394 1395 cmd->hlid = hlid; 1396 cmd->state = WL1271_CMD_STA_STATE_CONNECTED; 1397 1398 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0); 1399 if (ret < 0) { 1400 wl1271_error("failed to send set peer state command"); 1401 goto out_free; 1402 } 1403 1404out_free: 1405 kfree(cmd); 1406 1407out: 1408 return ret; 1409} 1410 1411int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1412 struct ieee80211_sta *sta, u8 hlid) 1413{ 1414 struct wl12xx_cmd_add_peer *cmd; 1415 int i, ret; 1416 u32 sta_rates; 1417 1418 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid); 1419 1420 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1421 if (!cmd) { 1422 ret = -ENOMEM; 1423 goto out; 1424 } 1425 1426 memcpy(cmd->addr, sta->addr, ETH_ALEN); 1427 cmd->bss_index = WL1271_AP_BSS_INDEX; 1428 cmd->aid = sta->aid; 1429 cmd->hlid = hlid; 1430 cmd->sp_len = sta->max_sp; 1431 cmd->wmm = sta->wme ? 1 : 0; 1432 1433 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++) 1434 if (sta->wme && (sta->uapsd_queues & BIT(i))) 1435 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1436 WL1271_PSD_UPSD_TRIGGER; 1437 else 1438 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1439 WL1271_PSD_LEGACY; 1440 1441 1442 sta_rates = sta->supp_rates[wlvif->band]; 1443 if (sta->ht_cap.ht_supported) 1444 sta_rates |= 1445 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) | 1446 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET); 1447 1448 cmd->supported_rates = 1449 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates, 1450 wlvif->band)); 1451 1452 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x", 1453 cmd->supported_rates, sta->uapsd_queues); 1454 1455 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0); 1456 if (ret < 0) { 1457 wl1271_error("failed to initiate cmd add peer"); 1458 goto out_free; 1459 } 1460 1461out_free: 1462 kfree(cmd); 1463 1464out: 1465 return ret; 1466} 1467 1468int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid) 1469{ 1470 struct wl12xx_cmd_remove_peer *cmd; 1471 int ret; 1472 bool timeout = false; 1473 1474 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid); 1475 1476 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1477 if (!cmd) { 1478 ret = -ENOMEM; 1479 goto out; 1480 } 1481 1482 cmd->hlid = hlid; 1483 /* We never send a deauth, mac80211 is in charge of this */ 1484 cmd->reason_opcode = 0; 1485 cmd->send_deauth_flag = 0; 1486 1487 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0); 1488 if (ret < 0) { 1489 wl1271_error("failed to initiate cmd remove peer"); 1490 goto out_free; 1491 } 1492 1493 ret = wl1271_cmd_wait_for_event_or_timeout(wl, 1494 PEER_REMOVE_COMPLETE_EVENT_ID, 1495 &timeout); 1496 /* 1497 * We are ok with a timeout here. The event is sometimes not sent 1498 * due to a firmware bug. In case of another error (like SDIO timeout) 1499 * queue a recovery. 1500 */ 1501 if (ret) 1502 wl12xx_queue_recovery_work(wl); 1503 1504out_free: 1505 kfree(cmd); 1506 1507out: 1508 return ret; 1509} 1510 1511int wl12xx_cmd_config_fwlog(struct wl1271 *wl) 1512{ 1513 struct wl12xx_cmd_config_fwlog *cmd; 1514 int ret = 0; 1515 1516 wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); 1517 1518 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1519 if (!cmd) { 1520 ret = -ENOMEM; 1521 goto out; 1522 } 1523 1524 cmd->logger_mode = wl->conf.fwlog.mode; 1525 cmd->log_severity = wl->conf.fwlog.severity; 1526 cmd->timestamp = wl->conf.fwlog.timestamp; 1527 cmd->output = wl->conf.fwlog.output; 1528 cmd->threshold = wl->conf.fwlog.threshold; 1529 1530 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); 1531 if (ret < 0) { 1532 wl1271_error("failed to send config firmware logger command"); 1533 goto out_free; 1534 } 1535 1536out_free: 1537 kfree(cmd); 1538 1539out: 1540 return ret; 1541} 1542 1543int wl12xx_cmd_start_fwlog(struct wl1271 *wl) 1544{ 1545 struct wl12xx_cmd_start_fwlog *cmd; 1546 int ret = 0; 1547 1548 wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); 1549 1550 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1551 if (!cmd) { 1552 ret = -ENOMEM; 1553 goto out; 1554 } 1555 1556 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); 1557 if (ret < 0) { 1558 wl1271_error("failed to send start firmware logger command"); 1559 goto out_free; 1560 } 1561 1562out_free: 1563 kfree(cmd); 1564 1565out: 1566 return ret; 1567} 1568 1569int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) 1570{ 1571 struct wl12xx_cmd_stop_fwlog *cmd; 1572 int ret = 0; 1573 1574 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); 1575 1576 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1577 if (!cmd) { 1578 ret = -ENOMEM; 1579 goto out; 1580 } 1581 1582 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); 1583 if (ret < 0) { 1584 wl1271_error("failed to send stop firmware logger command"); 1585 goto out_free; 1586 } 1587 1588out_free: 1589 kfree(cmd); 1590 1591out: 1592 return ret; 1593} 1594 1595static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1596 u8 role_id) 1597{ 1598 struct wl12xx_cmd_roc *cmd; 1599 int ret = 0; 1600 1601 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", wlvif->channel, role_id); 1602 1603 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID)) 1604 return -EINVAL; 1605 1606 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1607 if (!cmd) { 1608 ret = -ENOMEM; 1609 goto out; 1610 } 1611 1612 cmd->role_id = role_id; 1613 cmd->channel = wlvif->channel; 1614 switch (wlvif->band) { 1615 case IEEE80211_BAND_2GHZ: 1616 cmd->band = WLCORE_BAND_2_4GHZ; 1617 break; 1618 case IEEE80211_BAND_5GHZ: 1619 cmd->band = WLCORE_BAND_5GHZ; 1620 break; 1621 default: 1622 wl1271_error("roc - unknown band: %d", (int)wlvif->band); 1623 ret = -EINVAL; 1624 goto out_free; 1625 } 1626 1627 1628 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0); 1629 if (ret < 0) { 1630 wl1271_error("failed to send ROC command"); 1631 goto out_free; 1632 } 1633 1634out_free: 1635 kfree(cmd); 1636 1637out: 1638 return ret; 1639} 1640 1641static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id) 1642{ 1643 struct wl12xx_cmd_croc *cmd; 1644 int ret = 0; 1645 1646 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id); 1647 1648 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1649 if (!cmd) { 1650 ret = -ENOMEM; 1651 goto out; 1652 } 1653 cmd->role_id = role_id; 1654 1655 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd, 1656 sizeof(*cmd), 0); 1657 if (ret < 0) { 1658 wl1271_error("failed to send ROC command"); 1659 goto out_free; 1660 } 1661 1662out_free: 1663 kfree(cmd); 1664 1665out: 1666 return ret; 1667} 1668 1669int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id) 1670{ 1671 int ret = 0; 1672 bool is_first_roc; 1673 1674 if (WARN_ON(test_bit(role_id, wl->roc_map))) 1675 return 0; 1676 1677 is_first_roc = (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= 1678 WL12XX_MAX_ROLES); 1679 1680 ret = wl12xx_cmd_roc(wl, wlvif, role_id); 1681 if (ret < 0) 1682 goto out; 1683 1684 if (is_first_roc) { 1685 ret = wl1271_cmd_wait_for_event(wl, 1686 REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID); 1687 if (ret < 0) { 1688 wl1271_error("cmd roc event completion error"); 1689 goto out; 1690 } 1691 } 1692 1693 __set_bit(role_id, wl->roc_map); 1694out: 1695 return ret; 1696} 1697 1698int wl12xx_croc(struct wl1271 *wl, u8 role_id) 1699{ 1700 int ret = 0; 1701 1702 if (WARN_ON(!test_bit(role_id, wl->roc_map))) 1703 return 0; 1704 1705 ret = wl12xx_cmd_croc(wl, role_id); 1706 if (ret < 0) 1707 goto out; 1708 1709 __clear_bit(role_id, wl->roc_map); 1710 1711 /* 1712 * Rearm the tx watchdog when removing the last ROC. This prevents 1713 * recoveries due to just finished ROCs - when Tx hasn't yet had 1714 * a chance to get out. 1715 */ 1716 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) 1717 wl12xx_rearm_tx_watchdog_locked(wl); 1718out: 1719 return ret; 1720} 1721 1722int wl12xx_cmd_channel_switch(struct wl1271 *wl, 1723 struct wl12xx_vif *wlvif, 1724 struct ieee80211_channel_switch *ch_switch) 1725{ 1726 struct wl12xx_cmd_channel_switch *cmd; 1727 int ret; 1728 1729 wl1271_debug(DEBUG_ACX, "cmd channel switch"); 1730 1731 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1732 if (!cmd) { 1733 ret = -ENOMEM; 1734 goto out; 1735 } 1736 1737 cmd->role_id = wlvif->role_id; 1738 cmd->channel = ch_switch->channel->hw_value; 1739 cmd->switch_time = ch_switch->count; 1740 cmd->stop_tx = ch_switch->block_tx; 1741 1742 /* FIXME: control from mac80211 in the future */ 1743 cmd->post_switch_tx_disable = 0; /* Enable TX on the target channel */ 1744 1745 ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0); 1746 if (ret < 0) { 1747 wl1271_error("failed to send channel switch command"); 1748 goto out_free; 1749 } 1750 1751out_free: 1752 kfree(cmd); 1753 1754out: 1755 return ret; 1756} 1757 1758int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl) 1759{ 1760 struct wl12xx_cmd_stop_channel_switch *cmd; 1761 int ret; 1762 1763 wl1271_debug(DEBUG_ACX, "cmd stop channel switch"); 1764 1765 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1766 if (!cmd) { 1767 ret = -ENOMEM; 1768 goto out; 1769 } 1770 1771 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0); 1772 if (ret < 0) { 1773 wl1271_error("failed to stop channel switch command"); 1774 goto out_free; 1775 } 1776 1777out_free: 1778 kfree(cmd); 1779 1780out: 1781 return ret; 1782} 1783 1784/* start dev role and roc on its channel */ 1785int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1786{ 1787 int ret; 1788 1789 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1790 wlvif->bss_type == BSS_TYPE_IBSS))) 1791 return -EINVAL; 1792 1793 ret = wl12xx_cmd_role_enable(wl, 1794 wl12xx_wlvif_to_vif(wlvif)->addr, 1795 WL1271_ROLE_DEVICE, 1796 &wlvif->dev_role_id); 1797 if (ret < 0) 1798 goto out; 1799 1800 ret = wl12xx_cmd_role_start_dev(wl, wlvif); 1801 if (ret < 0) 1802 goto out_disable; 1803 1804 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id); 1805 if (ret < 0) 1806 goto out_stop; 1807 1808 return 0; 1809 1810out_stop: 1811 wl12xx_cmd_role_stop_dev(wl, wlvif); 1812out_disable: 1813 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 1814out: 1815 return ret; 1816} 1817 1818/* croc dev hlid, and stop the role */ 1819int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1820{ 1821 int ret; 1822 1823 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1824 wlvif->bss_type == BSS_TYPE_IBSS))) 1825 return -EINVAL; 1826 1827 /* flush all pending packets */ 1828 ret = wlcore_tx_work_locked(wl); 1829 if (ret < 0) 1830 goto out; 1831 1832 if (test_bit(wlvif->dev_role_id, wl->roc_map)) { 1833 ret = wl12xx_croc(wl, wlvif->dev_role_id); 1834 if (ret < 0) 1835 goto out; 1836 } 1837 1838 ret = wl12xx_cmd_role_stop_dev(wl, wlvif); 1839 if (ret < 0) 1840 goto out; 1841 1842 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 1843 if (ret < 0) 1844 goto out; 1845 1846out: 1847 return ret; 1848} 1849