cmd.c revision 3df74f46d88e39a032eb2cc3f2a571b66082acba
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 43/* 44 * send command to firmware 45 * 46 * @wl: wl struct 47 * @id: command id 48 * @buf: buffer containing the command, must work with dma 49 * @len: length of the buffer 50 */ 51int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len, 52 size_t res_len) 53{ 54 struct wl1271_cmd_header *cmd; 55 unsigned long timeout; 56 u32 intr; 57 int ret = 0; 58 u16 status; 59 u16 poll_count = 0; 60 61 cmd = buf; 62 cmd->id = cpu_to_le16(id); 63 cmd->status = 0; 64 65 WARN_ON(len % 4 != 0); 66 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags)); 67 68 ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false); 69 if (ret < 0) 70 goto fail; 71 72 /* 73 * TODO: we just need this because one bit is in a different 74 * place. Is there any better way? 75 */ 76 ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len); 77 if (ret < 0) 78 goto fail; 79 80 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT); 81 82 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); 83 if (ret < 0) 84 goto fail; 85 86 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) { 87 if (time_after(jiffies, timeout)) { 88 wl1271_error("command complete timeout"); 89 ret = -ETIMEDOUT; 90 goto fail; 91 } 92 93 poll_count++; 94 if (poll_count < WL1271_CMD_FAST_POLL_COUNT) 95 udelay(10); 96 else 97 msleep(1); 98 99 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); 100 if (ret < 0) 101 goto fail; 102 } 103 104 /* read back the status code of the command */ 105 if (res_len == 0) 106 res_len = sizeof(struct wl1271_cmd_header); 107 108 ret = wlcore_read(wl, wl->cmd_box_addr, cmd, res_len, false); 109 if (ret < 0) 110 goto fail; 111 112 status = le16_to_cpu(cmd->status); 113 if (status != CMD_STATUS_SUCCESS) { 114 wl1271_error("command execute failure %d", status); 115 ret = -EIO; 116 goto fail; 117 } 118 119 ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK, 120 WL1271_ACX_INTR_CMD_COMPLETE); 121 if (ret < 0) 122 goto fail; 123 124 return 0; 125 126fail: 127 wl12xx_queue_recovery_work(wl); 128 return ret; 129} 130 131/* 132 * Poll the mailbox event field until any of the bits in the mask is set or a 133 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs) 134 */ 135static int wl1271_cmd_wait_for_event_or_timeout(struct wl1271 *wl, 136 u32 mask, bool *timeout) 137{ 138 u32 *events_vector; 139 u32 event; 140 unsigned long timeout_time; 141 int ret = 0; 142 143 *timeout = false; 144 145 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA); 146 if (!events_vector) 147 return -ENOMEM; 148 149 timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT); 150 151 do { 152 if (time_after(jiffies, timeout_time)) { 153 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d", 154 (int)mask); 155 *timeout = true; 156 goto out; 157 } 158 159 msleep(1); 160 161 /* read from both event fields */ 162 ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector, 163 sizeof(*events_vector), false); 164 if (ret < 0) 165 goto out; 166 167 event = *events_vector & mask; 168 169 ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector, 170 sizeof(*events_vector), false); 171 if (ret < 0) 172 goto out; 173 174 event |= *events_vector & mask; 175 } while (!event); 176 177out: 178 kfree(events_vector); 179 return ret; 180} 181 182static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask) 183{ 184 int ret; 185 bool timeout = false; 186 187 ret = wl1271_cmd_wait_for_event_or_timeout(wl, mask, &timeout); 188 if (ret != 0 || timeout) { 189 wl12xx_queue_recovery_work(wl); 190 return ret; 191 } 192 193 return 0; 194} 195 196int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type, 197 u8 *role_id) 198{ 199 struct wl12xx_cmd_role_enable *cmd; 200 int ret; 201 202 wl1271_debug(DEBUG_CMD, "cmd role enable"); 203 204 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID)) 205 return -EBUSY; 206 207 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 208 if (!cmd) { 209 ret = -ENOMEM; 210 goto out; 211 } 212 213 /* get role id */ 214 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES); 215 if (cmd->role_id >= WL12XX_MAX_ROLES) { 216 ret = -EBUSY; 217 goto out_free; 218 } 219 220 memcpy(cmd->mac_address, addr, ETH_ALEN); 221 cmd->role_type = role_type; 222 223 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0); 224 if (ret < 0) { 225 wl1271_error("failed to initiate cmd role enable"); 226 goto out_free; 227 } 228 229 __set_bit(cmd->role_id, wl->roles_map); 230 *role_id = cmd->role_id; 231 232out_free: 233 kfree(cmd); 234 235out: 236 return ret; 237} 238 239int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id) 240{ 241 struct wl12xx_cmd_role_disable *cmd; 242 int ret; 243 244 wl1271_debug(DEBUG_CMD, "cmd role disable"); 245 246 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID)) 247 return -ENOENT; 248 249 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 250 if (!cmd) { 251 ret = -ENOMEM; 252 goto out; 253 } 254 cmd->role_id = *role_id; 255 256 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0); 257 if (ret < 0) { 258 wl1271_error("failed to initiate cmd role disable"); 259 goto out_free; 260 } 261 262 __clear_bit(*role_id, wl->roles_map); 263 *role_id = WL12XX_INVALID_ROLE_ID; 264 265out_free: 266 kfree(cmd); 267 268out: 269 return ret; 270} 271 272int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 273{ 274 unsigned long flags; 275 u8 link = find_first_zero_bit(wl->links_map, WL12XX_MAX_LINKS); 276 if (link >= WL12XX_MAX_LINKS) 277 return -EBUSY; 278 279 /* these bits are used by op_tx */ 280 spin_lock_irqsave(&wl->wl_lock, flags); 281 __set_bit(link, wl->links_map); 282 __set_bit(link, wlvif->links_map); 283 spin_unlock_irqrestore(&wl->wl_lock, flags); 284 *hlid = link; 285 return 0; 286} 287 288void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 289{ 290 unsigned long flags; 291 292 if (*hlid == WL12XX_INVALID_LINK_ID) 293 return; 294 295 /* these bits are used by op_tx */ 296 spin_lock_irqsave(&wl->wl_lock, flags); 297 __clear_bit(*hlid, wl->links_map); 298 __clear_bit(*hlid, wlvif->links_map); 299 spin_unlock_irqrestore(&wl->wl_lock, flags); 300 301 /* 302 * At this point op_tx() will not add more packets to the queues. We 303 * can purge them. 304 */ 305 wl1271_tx_reset_link_queues(wl, *hlid); 306 307 *hlid = WL12XX_INVALID_LINK_ID; 308} 309 310static int wl12xx_get_new_session_id(struct wl1271 *wl, 311 struct wl12xx_vif *wlvif) 312{ 313 if (wlvif->session_counter >= SESSION_COUNTER_MAX) 314 wlvif->session_counter = 0; 315 316 wlvif->session_counter++; 317 318 return wlvif->session_counter; 319} 320 321static u8 wlcore_get_native_channel_type(u8 nl_channel_type) 322{ 323 switch (nl_channel_type) { 324 case NL80211_CHAN_NO_HT: 325 return WLCORE_CHAN_NO_HT; 326 case NL80211_CHAN_HT20: 327 return WLCORE_CHAN_HT20; 328 case NL80211_CHAN_HT40MINUS: 329 return WLCORE_CHAN_HT40MINUS; 330 case NL80211_CHAN_HT40PLUS: 331 return WLCORE_CHAN_HT40PLUS; 332 default: 333 WARN_ON(1); 334 return WLCORE_CHAN_NO_HT; 335 } 336} 337 338static int wl12xx_cmd_role_start_dev(struct wl1271 *wl, 339 struct wl12xx_vif *wlvif) 340{ 341 struct wl12xx_cmd_role_start *cmd; 342 int ret; 343 344 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 345 if (!cmd) { 346 ret = -ENOMEM; 347 goto out; 348 } 349 350 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id); 351 352 cmd->role_id = wlvif->dev_role_id; 353 if (wlvif->band == IEEE80211_BAND_5GHZ) 354 cmd->band = WLCORE_BAND_5GHZ; 355 cmd->channel = wlvif->channel; 356 357 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) { 358 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid); 359 if (ret) 360 goto out_free; 361 } 362 cmd->device.hlid = wlvif->dev_hlid; 363 cmd->device.session = wl12xx_get_new_session_id(wl, wlvif); 364 365 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d", 366 cmd->role_id, cmd->device.hlid, cmd->device.session); 367 368 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 369 if (ret < 0) { 370 wl1271_error("failed to initiate cmd role enable"); 371 goto err_hlid; 372 } 373 374 goto out_free; 375 376err_hlid: 377 /* clear links on error */ 378 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 379 380out_free: 381 kfree(cmd); 382 383out: 384 return ret; 385} 386 387static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, 388 struct wl12xx_vif *wlvif) 389{ 390 struct wl12xx_cmd_role_stop *cmd; 391 int ret; 392 393 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID)) 394 return -EINVAL; 395 396 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 397 if (!cmd) { 398 ret = -ENOMEM; 399 goto out; 400 } 401 402 wl1271_debug(DEBUG_CMD, "cmd role stop dev"); 403 404 cmd->role_id = wlvif->dev_role_id; 405 cmd->disc_type = DISCONNECT_IMMEDIATE; 406 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 407 408 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 409 if (ret < 0) { 410 wl1271_error("failed to initiate cmd role stop"); 411 goto out_free; 412 } 413 414 ret = wl1271_cmd_wait_for_event(wl, ROLE_STOP_COMPLETE_EVENT_ID); 415 if (ret < 0) { 416 wl1271_error("cmd role stop dev event completion error"); 417 goto out_free; 418 } 419 420 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 421 422out_free: 423 kfree(cmd); 424 425out: 426 return ret; 427} 428 429int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 430{ 431 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 432 struct wl12xx_cmd_role_start *cmd; 433 int ret; 434 435 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 436 if (!cmd) { 437 ret = -ENOMEM; 438 goto out; 439 } 440 441 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id); 442 443 cmd->role_id = wlvif->role_id; 444 if (wlvif->band == IEEE80211_BAND_5GHZ) 445 cmd->band = WLCORE_BAND_5GHZ; 446 cmd->channel = wlvif->channel; 447 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 448 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int); 449 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY; 450 cmd->sta.ssid_len = wlvif->ssid_len; 451 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len); 452 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN); 453 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 454 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 455 456 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 457 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 458 if (ret) 459 goto out_free; 460 } 461 cmd->sta.hlid = wlvif->sta.hlid; 462 cmd->sta.session = wl12xx_get_new_session_id(wl, wlvif); 463 cmd->sta.remote_rates = cpu_to_le32(wlvif->rate_set); 464 465 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 466 "basic_rate_set: 0x%x, remote_rates: 0x%x", 467 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 468 wlvif->basic_rate_set, wlvif->rate_set); 469 470 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 471 if (ret < 0) { 472 wl1271_error("failed to initiate cmd role start sta"); 473 goto err_hlid; 474 } 475 476 goto out_free; 477 478err_hlid: 479 /* clear links on error. */ 480 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 481 482out_free: 483 kfree(cmd); 484 485out: 486 return ret; 487} 488 489/* use this function to stop ibss as well */ 490int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 491{ 492 struct wl12xx_cmd_role_stop *cmd; 493 int ret; 494 495 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)) 496 return -EINVAL; 497 498 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 499 if (!cmd) { 500 ret = -ENOMEM; 501 goto out; 502 } 503 504 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id); 505 506 cmd->role_id = wlvif->role_id; 507 cmd->disc_type = DISCONNECT_IMMEDIATE; 508 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 509 510 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 511 if (ret < 0) { 512 wl1271_error("failed to initiate cmd role stop sta"); 513 goto out_free; 514 } 515 516 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 517 518out_free: 519 kfree(cmd); 520 521out: 522 return ret; 523} 524 525int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 526{ 527 struct wl12xx_cmd_role_start *cmd; 528 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 529 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 530 u32 supported_rates; 531 int ret; 532 533 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id); 534 535 /* trying to use hidden SSID with an old hostapd version */ 536 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) { 537 wl1271_error("got a null SSID from beacon/bss"); 538 ret = -EINVAL; 539 goto out; 540 } 541 542 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 543 if (!cmd) { 544 ret = -ENOMEM; 545 goto out; 546 } 547 548 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid); 549 if (ret < 0) 550 goto out_free; 551 552 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid); 553 if (ret < 0) 554 goto out_free_global; 555 556 cmd->role_id = wlvif->role_id; 557 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period); 558 cmd->ap.bss_index = WL1271_AP_BSS_INDEX; 559 cmd->ap.global_hlid = wlvif->ap.global_hlid; 560 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid; 561 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 562 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int); 563 cmd->ap.dtim_interval = bss_conf->dtim_period; 564 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP; 565 /* FIXME: Change when adding DFS */ 566 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */ 567 cmd->channel = wlvif->channel; 568 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 569 570 if (!bss_conf->hidden_ssid) { 571 /* take the SSID from the beacon for backward compatibility */ 572 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC; 573 cmd->ap.ssid_len = wlvif->ssid_len; 574 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len); 575 } else { 576 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN; 577 cmd->ap.ssid_len = bss_conf->ssid_len; 578 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len); 579 } 580 581 supported_rates = CONF_TX_AP_ENABLED_RATES | CONF_TX_MCS_RATES | 582 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif); 583 584 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x", 585 supported_rates); 586 587 cmd->ap.local_rates = cpu_to_le32(supported_rates); 588 589 switch (wlvif->band) { 590 case IEEE80211_BAND_2GHZ: 591 cmd->band = WLCORE_BAND_2_4GHZ; 592 break; 593 case IEEE80211_BAND_5GHZ: 594 cmd->band = WLCORE_BAND_5GHZ; 595 break; 596 default: 597 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band); 598 cmd->band = WLCORE_BAND_2_4GHZ; 599 break; 600 } 601 602 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 603 if (ret < 0) { 604 wl1271_error("failed to initiate cmd role start ap"); 605 goto out_free_bcast; 606 } 607 608 goto out_free; 609 610out_free_bcast: 611 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 612 613out_free_global: 614 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 615 616out_free: 617 kfree(cmd); 618 619out: 620 return ret; 621} 622 623int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 624{ 625 struct wl12xx_cmd_role_stop *cmd; 626 int ret; 627 628 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 629 if (!cmd) { 630 ret = -ENOMEM; 631 goto out; 632 } 633 634 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id); 635 636 cmd->role_id = wlvif->role_id; 637 638 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 639 if (ret < 0) { 640 wl1271_error("failed to initiate cmd role stop ap"); 641 goto out_free; 642 } 643 644 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 645 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 646 647out_free: 648 kfree(cmd); 649 650out: 651 return ret; 652} 653 654int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif) 655{ 656 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 657 struct wl12xx_cmd_role_start *cmd; 658 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 659 int ret; 660 661 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 662 if (!cmd) { 663 ret = -ENOMEM; 664 goto out; 665 } 666 667 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id); 668 669 cmd->role_id = wlvif->role_id; 670 if (wlvif->band == IEEE80211_BAND_5GHZ) 671 cmd->band = WLCORE_BAND_5GHZ; 672 cmd->channel = wlvif->channel; 673 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 674 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int); 675 cmd->ibss.dtim_interval = bss_conf->dtim_period; 676 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY; 677 cmd->ibss.ssid_len = wlvif->ssid_len; 678 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len); 679 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN); 680 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 681 682 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 683 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 684 if (ret) 685 goto out_free; 686 } 687 cmd->ibss.hlid = wlvif->sta.hlid; 688 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set); 689 690 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 691 "basic_rate_set: 0x%x, remote_rates: 0x%x", 692 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 693 wlvif->basic_rate_set, wlvif->rate_set); 694 695 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM", 696 vif->bss_conf.bssid); 697 698 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 699 if (ret < 0) { 700 wl1271_error("failed to initiate cmd role enable"); 701 goto err_hlid; 702 } 703 704 goto out_free; 705 706err_hlid: 707 /* clear links on error. */ 708 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 709 710out_free: 711 kfree(cmd); 712 713out: 714 return ret; 715} 716 717 718/** 719 * send test command to firmware 720 * 721 * @wl: wl struct 722 * @buf: buffer containing the command, with all headers, must work with dma 723 * @len: length of the buffer 724 * @answer: is answer needed 725 */ 726int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer) 727{ 728 int ret; 729 size_t res_len = 0; 730 731 wl1271_debug(DEBUG_CMD, "cmd test"); 732 733 if (answer) 734 res_len = buf_len; 735 736 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len); 737 738 if (ret < 0) { 739 wl1271_warning("TEST command failed"); 740 return ret; 741 } 742 743 return ret; 744} 745EXPORT_SYMBOL_GPL(wl1271_cmd_test); 746 747/** 748 * read acx from firmware 749 * 750 * @wl: wl struct 751 * @id: acx id 752 * @buf: buffer for the response, including all headers, must work with dma 753 * @len: length of buf 754 */ 755int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len) 756{ 757 struct acx_header *acx = buf; 758 int ret; 759 760 wl1271_debug(DEBUG_CMD, "cmd interrogate"); 761 762 acx->id = cpu_to_le16(id); 763 764 /* payload length, does not include any headers */ 765 acx->len = cpu_to_le16(len - sizeof(*acx)); 766 767 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len); 768 if (ret < 0) 769 wl1271_error("INTERROGATE command failed"); 770 771 return ret; 772} 773 774/** 775 * write acx value to firmware 776 * 777 * @wl: wl struct 778 * @id: acx id 779 * @buf: buffer containing acx, including all headers, must work with dma 780 * @len: length of buf 781 */ 782int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len) 783{ 784 struct acx_header *acx = buf; 785 int ret; 786 787 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id); 788 789 acx->id = cpu_to_le16(id); 790 791 /* payload length, does not include any headers */ 792 acx->len = cpu_to_le16(len - sizeof(*acx)); 793 794 ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0); 795 if (ret < 0) { 796 wl1271_warning("CONFIGURE command NOK"); 797 return ret; 798 } 799 800 return 0; 801} 802EXPORT_SYMBOL_GPL(wl1271_cmd_configure); 803 804int wl1271_cmd_data_path(struct wl1271 *wl, bool enable) 805{ 806 struct cmd_enabledisable_path *cmd; 807 int ret; 808 u16 cmd_rx, cmd_tx; 809 810 wl1271_debug(DEBUG_CMD, "cmd data path"); 811 812 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 813 if (!cmd) { 814 ret = -ENOMEM; 815 goto out; 816 } 817 818 /* the channel here is only used for calibration, so hardcoded to 1 */ 819 cmd->channel = 1; 820 821 if (enable) { 822 cmd_rx = CMD_ENABLE_RX; 823 cmd_tx = CMD_ENABLE_TX; 824 } else { 825 cmd_rx = CMD_DISABLE_RX; 826 cmd_tx = CMD_DISABLE_TX; 827 } 828 829 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0); 830 if (ret < 0) { 831 wl1271_error("rx %s cmd for channel %d failed", 832 enable ? "start" : "stop", cmd->channel); 833 goto out; 834 } 835 836 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d", 837 enable ? "start" : "stop", cmd->channel); 838 839 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0); 840 if (ret < 0) { 841 wl1271_error("tx %s cmd for channel %d failed", 842 enable ? "start" : "stop", cmd->channel); 843 goto out; 844 } 845 846 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d", 847 enable ? "start" : "stop", cmd->channel); 848 849out: 850 kfree(cmd); 851 return ret; 852} 853EXPORT_SYMBOL_GPL(wl1271_cmd_data_path); 854 855int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif, 856 u8 ps_mode, u16 auto_ps_timeout) 857{ 858 struct wl1271_cmd_ps_params *ps_params = NULL; 859 int ret = 0; 860 861 wl1271_debug(DEBUG_CMD, "cmd set ps mode"); 862 863 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL); 864 if (!ps_params) { 865 ret = -ENOMEM; 866 goto out; 867 } 868 869 ps_params->role_id = wlvif->role_id; 870 ps_params->ps_mode = ps_mode; 871 ps_params->auto_ps_timeout = auto_ps_timeout; 872 873 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params, 874 sizeof(*ps_params), 0); 875 if (ret < 0) { 876 wl1271_error("cmd set_ps_mode failed"); 877 goto out; 878 } 879 880out: 881 kfree(ps_params); 882 return ret; 883} 884 885int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id, 886 u16 template_id, void *buf, size_t buf_len, 887 int index, u32 rates) 888{ 889 struct wl1271_cmd_template_set *cmd; 890 int ret = 0; 891 892 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)", 893 template_id, role_id); 894 895 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE); 896 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE); 897 898 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 899 if (!cmd) { 900 ret = -ENOMEM; 901 goto out; 902 } 903 904 /* during initialization wlvif is NULL */ 905 cmd->role_id = role_id; 906 cmd->len = cpu_to_le16(buf_len); 907 cmd->template_type = template_id; 908 cmd->enabled_rates = cpu_to_le32(rates); 909 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit; 910 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit; 911 cmd->index = index; 912 913 if (buf) 914 memcpy(cmd->template_data, buf, buf_len); 915 916 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0); 917 if (ret < 0) { 918 wl1271_warning("cmd set_template failed: %d", ret); 919 goto out_free; 920 } 921 922out_free: 923 kfree(cmd); 924 925out: 926 return ret; 927} 928 929int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) 930{ 931 struct sk_buff *skb = NULL; 932 int size; 933 void *ptr; 934 int ret = -ENOMEM; 935 936 937 if (wlvif->bss_type == BSS_TYPE_IBSS) { 938 size = sizeof(struct wl12xx_null_data_template); 939 ptr = NULL; 940 } else { 941 skb = ieee80211_nullfunc_get(wl->hw, 942 wl12xx_wlvif_to_vif(wlvif)); 943 if (!skb) 944 goto out; 945 size = skb->len; 946 ptr = skb->data; 947 } 948 949 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 950 CMD_TEMPL_NULL_DATA, ptr, size, 0, 951 wlvif->basic_rate); 952 953out: 954 dev_kfree_skb(skb); 955 if (ret) 956 wl1271_warning("cmd buld null data failed %d", ret); 957 958 return ret; 959 960} 961 962int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, 963 struct wl12xx_vif *wlvif) 964{ 965 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 966 struct sk_buff *skb = NULL; 967 int ret = -ENOMEM; 968 969 skb = ieee80211_nullfunc_get(wl->hw, vif); 970 if (!skb) 971 goto out; 972 973 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV, 974 skb->data, skb->len, 975 CMD_TEMPL_KLV_IDX_NULL_DATA, 976 wlvif->basic_rate); 977 978out: 979 dev_kfree_skb(skb); 980 if (ret) 981 wl1271_warning("cmd build klv null data failed %d", ret); 982 983 return ret; 984 985} 986 987int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif, 988 u16 aid) 989{ 990 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 991 struct sk_buff *skb; 992 int ret = 0; 993 994 skb = ieee80211_pspoll_get(wl->hw, vif); 995 if (!skb) 996 goto out; 997 998 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 999 CMD_TEMPL_PS_POLL, skb->data, 1000 skb->len, 0, wlvif->basic_rate_set); 1001 1002out: 1003 dev_kfree_skb(skb); 1004 return ret; 1005} 1006 1007int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1008 u8 role_id, u8 band, 1009 const u8 *ssid, size_t ssid_len, 1010 const u8 *ie, size_t ie_len, bool sched_scan) 1011{ 1012 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1013 struct sk_buff *skb; 1014 int ret; 1015 u32 rate; 1016 u16 template_id_2_4 = CMD_TEMPL_CFG_PROBE_REQ_2_4; 1017 u16 template_id_5 = CMD_TEMPL_CFG_PROBE_REQ_5; 1018 1019 skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len, 1020 ie, ie_len); 1021 if (!skb) { 1022 ret = -ENOMEM; 1023 goto out; 1024 } 1025 1026 wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len); 1027 1028 if (!sched_scan && 1029 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) { 1030 template_id_2_4 = CMD_TEMPL_APP_PROBE_REQ_2_4; 1031 template_id_5 = CMD_TEMPL_APP_PROBE_REQ_5; 1032 } 1033 1034 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]); 1035 if (band == IEEE80211_BAND_2GHZ) 1036 ret = wl1271_cmd_template_set(wl, role_id, 1037 template_id_2_4, 1038 skb->data, skb->len, 0, rate); 1039 else 1040 ret = wl1271_cmd_template_set(wl, role_id, 1041 template_id_5, 1042 skb->data, skb->len, 0, rate); 1043 1044out: 1045 dev_kfree_skb(skb); 1046 return ret; 1047} 1048 1049struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl, 1050 struct wl12xx_vif *wlvif, 1051 struct sk_buff *skb) 1052{ 1053 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1054 int ret; 1055 u32 rate; 1056 1057 if (!skb) 1058 skb = ieee80211_ap_probereq_get(wl->hw, vif); 1059 if (!skb) 1060 goto out; 1061 1062 wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len); 1063 1064 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]); 1065 if (wlvif->band == IEEE80211_BAND_2GHZ) 1066 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1067 CMD_TEMPL_CFG_PROBE_REQ_2_4, 1068 skb->data, skb->len, 0, rate); 1069 else 1070 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1071 CMD_TEMPL_CFG_PROBE_REQ_5, 1072 skb->data, skb->len, 0, rate); 1073 1074 if (ret < 0) 1075 wl1271_error("Unable to set ap probe request template."); 1076 1077out: 1078 return skb; 1079} 1080 1081int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1082{ 1083 int ret, extra = 0; 1084 u16 fc; 1085 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1086 struct sk_buff *skb; 1087 struct wl12xx_arp_rsp_template *tmpl; 1088 struct ieee80211_hdr_3addr *hdr; 1089 struct arphdr *arp_hdr; 1090 1091 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) + 1092 WL1271_EXTRA_SPACE_MAX); 1093 if (!skb) { 1094 wl1271_error("failed to allocate buffer for arp rsp template"); 1095 return -ENOMEM; 1096 } 1097 1098 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX); 1099 1100 tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl)); 1101 memset(tmpl, 0, sizeof(*tmpl)); 1102 1103 /* llc layer */ 1104 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header)); 1105 tmpl->llc_type = cpu_to_be16(ETH_P_ARP); 1106 1107 /* arp header */ 1108 arp_hdr = &tmpl->arp_hdr; 1109 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER); 1110 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP); 1111 arp_hdr->ar_hln = ETH_ALEN; 1112 arp_hdr->ar_pln = 4; 1113 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY); 1114 1115 /* arp payload */ 1116 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN); 1117 tmpl->sender_ip = wlvif->ip_addr; 1118 1119 /* encryption space */ 1120 switch (wlvif->encryption_type) { 1121 case KEY_TKIP: 1122 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) 1123 extra = WL1271_EXTRA_SPACE_TKIP; 1124 break; 1125 case KEY_AES: 1126 extra = WL1271_EXTRA_SPACE_AES; 1127 break; 1128 case KEY_NONE: 1129 case KEY_WEP: 1130 case KEY_GEM: 1131 extra = 0; 1132 break; 1133 default: 1134 wl1271_warning("Unknown encryption type: %d", 1135 wlvif->encryption_type); 1136 ret = -EINVAL; 1137 goto out; 1138 } 1139 1140 if (extra) { 1141 u8 *space = skb_push(skb, extra); 1142 memset(space, 0, extra); 1143 } 1144 1145 /* QoS header - BE */ 1146 if (wlvif->sta.qos) 1147 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16)); 1148 1149 /* mac80211 header */ 1150 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr)); 1151 memset(hdr, 0, sizeof(*hdr)); 1152 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS; 1153 if (wlvif->sta.qos) 1154 fc |= IEEE80211_STYPE_QOS_DATA; 1155 else 1156 fc |= IEEE80211_STYPE_DATA; 1157 if (wlvif->encryption_type != KEY_NONE) 1158 fc |= IEEE80211_FCTL_PROTECTED; 1159 1160 hdr->frame_control = cpu_to_le16(fc); 1161 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN); 1162 memcpy(hdr->addr2, vif->addr, ETH_ALEN); 1163 memset(hdr->addr3, 0xff, ETH_ALEN); 1164 1165 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP, 1166 skb->data, skb->len, 0, 1167 wlvif->basic_rate); 1168out: 1169 dev_kfree_skb(skb); 1170 return ret; 1171} 1172 1173int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif) 1174{ 1175 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 1176 struct ieee80211_qos_hdr template; 1177 1178 memset(&template, 0, sizeof(template)); 1179 1180 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN); 1181 memcpy(template.addr2, vif->addr, ETH_ALEN); 1182 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN); 1183 1184 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 1185 IEEE80211_STYPE_QOS_NULLFUNC | 1186 IEEE80211_FCTL_TODS); 1187 1188 /* FIXME: not sure what priority to use here */ 1189 template.qos_ctrl = cpu_to_le16(0); 1190 1191 return wl1271_cmd_template_set(wl, wlvif->role_id, 1192 CMD_TEMPL_QOS_NULL_DATA, &template, 1193 sizeof(template), 0, 1194 wlvif->basic_rate); 1195} 1196 1197int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid) 1198{ 1199 struct wl1271_cmd_set_keys *cmd; 1200 int ret = 0; 1201 1202 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id); 1203 1204 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1205 if (!cmd) { 1206 ret = -ENOMEM; 1207 goto out; 1208 } 1209 1210 cmd->hlid = hlid; 1211 cmd->key_id = id; 1212 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1213 cmd->key_action = cpu_to_le16(KEY_SET_ID); 1214 cmd->key_type = KEY_WEP; 1215 1216 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1217 if (ret < 0) { 1218 wl1271_warning("cmd set_default_wep_key failed: %d", ret); 1219 goto out; 1220 } 1221 1222out: 1223 kfree(cmd); 1224 1225 return ret; 1226} 1227 1228int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1229 u16 action, u8 id, u8 key_type, 1230 u8 key_size, const u8 *key, const u8 *addr, 1231 u32 tx_seq_32, u16 tx_seq_16) 1232{ 1233 struct wl1271_cmd_set_keys *cmd; 1234 int ret = 0; 1235 1236 /* hlid might have already been deleted */ 1237 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) 1238 return 0; 1239 1240 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1241 if (!cmd) { 1242 ret = -ENOMEM; 1243 goto out; 1244 } 1245 1246 cmd->hlid = wlvif->sta.hlid; 1247 1248 if (key_type == KEY_WEP) 1249 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1250 else if (is_broadcast_ether_addr(addr)) 1251 cmd->lid_key_type = BROADCAST_LID_TYPE; 1252 else 1253 cmd->lid_key_type = UNICAST_LID_TYPE; 1254 1255 cmd->key_action = cpu_to_le16(action); 1256 cmd->key_size = key_size; 1257 cmd->key_type = key_type; 1258 1259 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1260 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1261 1262 cmd->key_id = id; 1263 1264 if (key_type == KEY_TKIP) { 1265 /* 1266 * We get the key in the following form: 1267 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1268 * but the target is expecting: 1269 * TKIP - RX MIC - TX MIC 1270 */ 1271 memcpy(cmd->key, key, 16); 1272 memcpy(cmd->key + 16, key + 24, 8); 1273 memcpy(cmd->key + 24, key + 16, 8); 1274 1275 } else { 1276 memcpy(cmd->key, key, key_size); 1277 } 1278 1279 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd)); 1280 1281 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1282 if (ret < 0) { 1283 wl1271_warning("could not set keys"); 1284 goto out; 1285 } 1286 1287out: 1288 kfree(cmd); 1289 1290 return ret; 1291} 1292 1293/* 1294 * TODO: merge with sta/ibss into 1 set_key function. 1295 * note there are slight diffs 1296 */ 1297int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1298 u16 action, u8 id, u8 key_type, 1299 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32, 1300 u16 tx_seq_16) 1301{ 1302 struct wl1271_cmd_set_keys *cmd; 1303 int ret = 0; 1304 u8 lid_type; 1305 1306 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1307 if (!cmd) 1308 return -ENOMEM; 1309 1310 if (hlid == wlvif->ap.bcast_hlid) { 1311 if (key_type == KEY_WEP) 1312 lid_type = WEP_DEFAULT_LID_TYPE; 1313 else 1314 lid_type = BROADCAST_LID_TYPE; 1315 } else { 1316 lid_type = UNICAST_LID_TYPE; 1317 } 1318 1319 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d" 1320 " hlid: %d", (int)action, (int)id, (int)lid_type, 1321 (int)key_type, (int)hlid); 1322 1323 cmd->lid_key_type = lid_type; 1324 cmd->hlid = hlid; 1325 cmd->key_action = cpu_to_le16(action); 1326 cmd->key_size = key_size; 1327 cmd->key_type = key_type; 1328 cmd->key_id = id; 1329 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1330 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1331 1332 if (key_type == KEY_TKIP) { 1333 /* 1334 * We get the key in the following form: 1335 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1336 * but the target is expecting: 1337 * TKIP - RX MIC - TX MIC 1338 */ 1339 memcpy(cmd->key, key, 16); 1340 memcpy(cmd->key + 16, key + 24, 8); 1341 memcpy(cmd->key + 24, key + 16, 8); 1342 } else { 1343 memcpy(cmd->key, key, key_size); 1344 } 1345 1346 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd)); 1347 1348 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1349 if (ret < 0) { 1350 wl1271_warning("could not set ap keys"); 1351 goto out; 1352 } 1353 1354out: 1355 kfree(cmd); 1356 return ret; 1357} 1358 1359int wl12xx_cmd_set_peer_state(struct wl1271 *wl, u8 hlid) 1360{ 1361 struct wl12xx_cmd_set_peer_state *cmd; 1362 int ret = 0; 1363 1364 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid); 1365 1366 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1367 if (!cmd) { 1368 ret = -ENOMEM; 1369 goto out; 1370 } 1371 1372 cmd->hlid = hlid; 1373 cmd->state = WL1271_CMD_STA_STATE_CONNECTED; 1374 1375 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0); 1376 if (ret < 0) { 1377 wl1271_error("failed to send set peer state command"); 1378 goto out_free; 1379 } 1380 1381out_free: 1382 kfree(cmd); 1383 1384out: 1385 return ret; 1386} 1387 1388int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1389 struct ieee80211_sta *sta, u8 hlid) 1390{ 1391 struct wl12xx_cmd_add_peer *cmd; 1392 int i, ret; 1393 u32 sta_rates; 1394 1395 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid); 1396 1397 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1398 if (!cmd) { 1399 ret = -ENOMEM; 1400 goto out; 1401 } 1402 1403 memcpy(cmd->addr, sta->addr, ETH_ALEN); 1404 cmd->bss_index = WL1271_AP_BSS_INDEX; 1405 cmd->aid = sta->aid; 1406 cmd->hlid = hlid; 1407 cmd->sp_len = sta->max_sp; 1408 cmd->wmm = sta->wme ? 1 : 0; 1409 1410 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++) 1411 if (sta->wme && (sta->uapsd_queues & BIT(i))) 1412 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1413 WL1271_PSD_UPSD_TRIGGER; 1414 else 1415 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1416 WL1271_PSD_LEGACY; 1417 1418 1419 sta_rates = sta->supp_rates[wlvif->band]; 1420 if (sta->ht_cap.ht_supported) 1421 sta_rates |= 1422 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) | 1423 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET); 1424 1425 cmd->supported_rates = 1426 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates, 1427 wlvif->band)); 1428 1429 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x", 1430 cmd->supported_rates, sta->uapsd_queues); 1431 1432 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0); 1433 if (ret < 0) { 1434 wl1271_error("failed to initiate cmd add peer"); 1435 goto out_free; 1436 } 1437 1438out_free: 1439 kfree(cmd); 1440 1441out: 1442 return ret; 1443} 1444 1445int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid) 1446{ 1447 struct wl12xx_cmd_remove_peer *cmd; 1448 int ret; 1449 bool timeout = false; 1450 1451 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid); 1452 1453 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1454 if (!cmd) { 1455 ret = -ENOMEM; 1456 goto out; 1457 } 1458 1459 cmd->hlid = hlid; 1460 /* We never send a deauth, mac80211 is in charge of this */ 1461 cmd->reason_opcode = 0; 1462 cmd->send_deauth_flag = 0; 1463 1464 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0); 1465 if (ret < 0) { 1466 wl1271_error("failed to initiate cmd remove peer"); 1467 goto out_free; 1468 } 1469 1470 ret = wl1271_cmd_wait_for_event_or_timeout(wl, 1471 PEER_REMOVE_COMPLETE_EVENT_ID, 1472 &timeout); 1473 /* 1474 * We are ok with a timeout here. The event is sometimes not sent 1475 * due to a firmware bug. In case of another error (like SDIO timeout) 1476 * queue a recovery. 1477 */ 1478 if (ret) 1479 wl12xx_queue_recovery_work(wl); 1480 1481out_free: 1482 kfree(cmd); 1483 1484out: 1485 return ret; 1486} 1487 1488int wl12xx_cmd_config_fwlog(struct wl1271 *wl) 1489{ 1490 struct wl12xx_cmd_config_fwlog *cmd; 1491 int ret = 0; 1492 1493 wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); 1494 1495 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1496 if (!cmd) { 1497 ret = -ENOMEM; 1498 goto out; 1499 } 1500 1501 cmd->logger_mode = wl->conf.fwlog.mode; 1502 cmd->log_severity = wl->conf.fwlog.severity; 1503 cmd->timestamp = wl->conf.fwlog.timestamp; 1504 cmd->output = wl->conf.fwlog.output; 1505 cmd->threshold = wl->conf.fwlog.threshold; 1506 1507 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); 1508 if (ret < 0) { 1509 wl1271_error("failed to send config firmware logger command"); 1510 goto out_free; 1511 } 1512 1513out_free: 1514 kfree(cmd); 1515 1516out: 1517 return ret; 1518} 1519 1520int wl12xx_cmd_start_fwlog(struct wl1271 *wl) 1521{ 1522 struct wl12xx_cmd_start_fwlog *cmd; 1523 int ret = 0; 1524 1525 wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); 1526 1527 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1528 if (!cmd) { 1529 ret = -ENOMEM; 1530 goto out; 1531 } 1532 1533 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); 1534 if (ret < 0) { 1535 wl1271_error("failed to send start firmware logger command"); 1536 goto out_free; 1537 } 1538 1539out_free: 1540 kfree(cmd); 1541 1542out: 1543 return ret; 1544} 1545 1546int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) 1547{ 1548 struct wl12xx_cmd_stop_fwlog *cmd; 1549 int ret = 0; 1550 1551 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); 1552 1553 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1554 if (!cmd) { 1555 ret = -ENOMEM; 1556 goto out; 1557 } 1558 1559 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); 1560 if (ret < 0) { 1561 wl1271_error("failed to send stop firmware logger command"); 1562 goto out_free; 1563 } 1564 1565out_free: 1566 kfree(cmd); 1567 1568out: 1569 return ret; 1570} 1571 1572static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1573 u8 role_id) 1574{ 1575 struct wl12xx_cmd_roc *cmd; 1576 int ret = 0; 1577 1578 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", wlvif->channel, role_id); 1579 1580 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID)) 1581 return -EINVAL; 1582 1583 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1584 if (!cmd) { 1585 ret = -ENOMEM; 1586 goto out; 1587 } 1588 1589 cmd->role_id = role_id; 1590 cmd->channel = wlvif->channel; 1591 switch (wlvif->band) { 1592 case IEEE80211_BAND_2GHZ: 1593 cmd->band = WLCORE_BAND_2_4GHZ; 1594 break; 1595 case IEEE80211_BAND_5GHZ: 1596 cmd->band = WLCORE_BAND_5GHZ; 1597 break; 1598 default: 1599 wl1271_error("roc - unknown band: %d", (int)wlvif->band); 1600 ret = -EINVAL; 1601 goto out_free; 1602 } 1603 1604 1605 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0); 1606 if (ret < 0) { 1607 wl1271_error("failed to send ROC command"); 1608 goto out_free; 1609 } 1610 1611out_free: 1612 kfree(cmd); 1613 1614out: 1615 return ret; 1616} 1617 1618static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id) 1619{ 1620 struct wl12xx_cmd_croc *cmd; 1621 int ret = 0; 1622 1623 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id); 1624 1625 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1626 if (!cmd) { 1627 ret = -ENOMEM; 1628 goto out; 1629 } 1630 cmd->role_id = role_id; 1631 1632 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd, 1633 sizeof(*cmd), 0); 1634 if (ret < 0) { 1635 wl1271_error("failed to send ROC command"); 1636 goto out_free; 1637 } 1638 1639out_free: 1640 kfree(cmd); 1641 1642out: 1643 return ret; 1644} 1645 1646int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id) 1647{ 1648 int ret = 0; 1649 bool is_first_roc; 1650 1651 if (WARN_ON(test_bit(role_id, wl->roc_map))) 1652 return 0; 1653 1654 is_first_roc = (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= 1655 WL12XX_MAX_ROLES); 1656 1657 ret = wl12xx_cmd_roc(wl, wlvif, role_id); 1658 if (ret < 0) 1659 goto out; 1660 1661 if (is_first_roc) { 1662 ret = wl1271_cmd_wait_for_event(wl, 1663 REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID); 1664 if (ret < 0) { 1665 wl1271_error("cmd roc event completion error"); 1666 goto out; 1667 } 1668 } 1669 1670 __set_bit(role_id, wl->roc_map); 1671out: 1672 return ret; 1673} 1674 1675int wl12xx_croc(struct wl1271 *wl, u8 role_id) 1676{ 1677 int ret = 0; 1678 1679 if (WARN_ON(!test_bit(role_id, wl->roc_map))) 1680 return 0; 1681 1682 ret = wl12xx_cmd_croc(wl, role_id); 1683 if (ret < 0) 1684 goto out; 1685 1686 __clear_bit(role_id, wl->roc_map); 1687 1688 /* 1689 * Rearm the tx watchdog when removing the last ROC. This prevents 1690 * recoveries due to just finished ROCs - when Tx hasn't yet had 1691 * a chance to get out. 1692 */ 1693 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) 1694 wl12xx_rearm_tx_watchdog_locked(wl); 1695out: 1696 return ret; 1697} 1698 1699int wl12xx_cmd_channel_switch(struct wl1271 *wl, 1700 struct wl12xx_vif *wlvif, 1701 struct ieee80211_channel_switch *ch_switch) 1702{ 1703 struct wl12xx_cmd_channel_switch *cmd; 1704 int ret; 1705 1706 wl1271_debug(DEBUG_ACX, "cmd channel switch"); 1707 1708 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1709 if (!cmd) { 1710 ret = -ENOMEM; 1711 goto out; 1712 } 1713 1714 cmd->role_id = wlvif->role_id; 1715 cmd->channel = ch_switch->channel->hw_value; 1716 cmd->switch_time = ch_switch->count; 1717 cmd->stop_tx = ch_switch->block_tx; 1718 1719 /* FIXME: control from mac80211 in the future */ 1720 cmd->post_switch_tx_disable = 0; /* Enable TX on the target channel */ 1721 1722 ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0); 1723 if (ret < 0) { 1724 wl1271_error("failed to send channel switch command"); 1725 goto out_free; 1726 } 1727 1728out_free: 1729 kfree(cmd); 1730 1731out: 1732 return ret; 1733} 1734 1735int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl) 1736{ 1737 struct wl12xx_cmd_stop_channel_switch *cmd; 1738 int ret; 1739 1740 wl1271_debug(DEBUG_ACX, "cmd stop channel switch"); 1741 1742 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1743 if (!cmd) { 1744 ret = -ENOMEM; 1745 goto out; 1746 } 1747 1748 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0); 1749 if (ret < 0) { 1750 wl1271_error("failed to stop channel switch command"); 1751 goto out_free; 1752 } 1753 1754out_free: 1755 kfree(cmd); 1756 1757out: 1758 return ret; 1759} 1760 1761/* start dev role and roc on its channel */ 1762int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1763{ 1764 int ret; 1765 1766 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1767 wlvif->bss_type == BSS_TYPE_IBSS))) 1768 return -EINVAL; 1769 1770 ret = wl12xx_cmd_role_start_dev(wl, wlvif); 1771 if (ret < 0) 1772 goto out; 1773 1774 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id); 1775 if (ret < 0) 1776 goto out_stop; 1777 1778 return 0; 1779 1780out_stop: 1781 wl12xx_cmd_role_stop_dev(wl, wlvif); 1782out: 1783 return ret; 1784} 1785 1786/* croc dev hlid, and stop the role */ 1787int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1788{ 1789 int ret; 1790 1791 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1792 wlvif->bss_type == BSS_TYPE_IBSS))) 1793 return -EINVAL; 1794 1795 /* flush all pending packets */ 1796 ret = wlcore_tx_work_locked(wl); 1797 if (ret < 0) 1798 goto out; 1799 1800 if (test_bit(wlvif->dev_role_id, wl->roc_map)) { 1801 ret = wl12xx_croc(wl, wlvif->dev_role_id); 1802 if (ret < 0) 1803 goto out; 1804 } 1805 1806 ret = wl12xx_cmd_role_stop_dev(wl, wlvif); 1807 if (ret < 0) 1808 goto out; 1809out: 1810 return ret; 1811} 1812