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 * return the cmd status code on success. 52 */ 53 static int __wlcore_cmd_send(struct wl1271 *wl, u16 id, void *buf, 54 size_t len, size_t res_len) 55 { 56 struct wl1271_cmd_header *cmd; 57 unsigned long timeout; 58 u32 intr; 59 int ret; 60 u16 status; 61 u16 poll_count = 0; 62 63 if (WARN_ON(unlikely(wl->state == WLCORE_STATE_RESTARTING))) 64 return -EIO; 65 66 cmd = buf; 67 cmd->id = cpu_to_le16(id); 68 cmd->status = 0; 69 70 WARN_ON(len % 4 != 0); 71 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags)); 72 73 ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false); 74 if (ret < 0) 75 return ret; 76 77 /* 78 * TODO: we just need this because one bit is in a different 79 * place. Is there any better way? 80 */ 81 ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len); 82 if (ret < 0) 83 return ret; 84 85 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT); 86 87 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); 88 if (ret < 0) 89 return ret; 90 91 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) { 92 if (time_after(jiffies, timeout)) { 93 wl1271_error("command complete timeout"); 94 return -ETIMEDOUT; 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 return ret; 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 return ret; 115 116 status = le16_to_cpu(cmd->status); 117 118 ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK, 119 WL1271_ACX_INTR_CMD_COMPLETE); 120 if (ret < 0) 121 return ret; 122 123 return status; 124 } 125 126 /* 127 * send command to fw and return cmd status on success 128 * valid_rets contains a bitmap of allowed error codes 129 */ 130 int wlcore_cmd_send_failsafe(struct wl1271 *wl, u16 id, void *buf, size_t len, 131 size_t res_len, unsigned long valid_rets) 132 { 133 int ret = __wlcore_cmd_send(wl, id, buf, len, res_len); 134 135 if (ret < 0) 136 goto fail; 137 138 /* success is always a valid status */ 139 valid_rets |= BIT(CMD_STATUS_SUCCESS); 140 141 if (ret >= MAX_COMMAND_STATUS || 142 !test_bit(ret, &valid_rets)) { 143 wl1271_error("command execute failure %d", ret); 144 ret = -EIO; 145 goto fail; 146 } 147 return ret; 148 fail: 149 wl12xx_queue_recovery_work(wl); 150 return ret; 151 } 152 EXPORT_SYMBOL_GPL(wl1271_cmd_send); 153 154 /* 155 * wrapper for wlcore_cmd_send that accept only CMD_STATUS_SUCCESS 156 * return 0 on success. 157 */ 158 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len, 159 size_t res_len) 160 { 161 int ret = wlcore_cmd_send_failsafe(wl, id, buf, len, res_len, 0); 162 163 if (ret < 0) 164 return ret; 165 return 0; 166 } 167 168 /* 169 * Poll the mailbox event field until any of the bits in the mask is set or a 170 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs) 171 */ 172 int wlcore_cmd_wait_for_event_or_timeout(struct wl1271 *wl, 173 u32 mask, bool *timeout) 174 { 175 u32 *events_vector; 176 u32 event; 177 unsigned long timeout_time; 178 u16 poll_count = 0; 179 int ret = 0; 180 181 *timeout = false; 182 183 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA); 184 if (!events_vector) 185 return -ENOMEM; 186 187 timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT); 188 189 do { 190 if (time_after(jiffies, timeout_time)) { 191 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d", 192 (int)mask); 193 *timeout = true; 194 goto out; 195 } 196 197 poll_count++; 198 if (poll_count < WL1271_WAIT_EVENT_FAST_POLL_COUNT) 199 usleep_range(50, 51); 200 else 201 usleep_range(1000, 5000); 202 203 /* read from both event fields */ 204 ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector, 205 sizeof(*events_vector), false); 206 if (ret < 0) 207 goto out; 208 209 event = *events_vector & mask; 210 211 ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector, 212 sizeof(*events_vector), false); 213 if (ret < 0) 214 goto out; 215 216 event |= *events_vector & mask; 217 } while (!event); 218 219 out: 220 kfree(events_vector); 221 return ret; 222 } 223 EXPORT_SYMBOL_GPL(wlcore_cmd_wait_for_event_or_timeout); 224 225 int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type, 226 u8 *role_id) 227 { 228 struct wl12xx_cmd_role_enable *cmd; 229 int ret; 230 231 wl1271_debug(DEBUG_CMD, "cmd role enable"); 232 233 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID)) 234 return -EBUSY; 235 236 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 237 if (!cmd) { 238 ret = -ENOMEM; 239 goto out; 240 } 241 242 /* get role id */ 243 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES); 244 if (cmd->role_id >= WL12XX_MAX_ROLES) { 245 ret = -EBUSY; 246 goto out_free; 247 } 248 249 memcpy(cmd->mac_address, addr, ETH_ALEN); 250 cmd->role_type = role_type; 251 252 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0); 253 if (ret < 0) { 254 wl1271_error("failed to initiate cmd role enable"); 255 goto out_free; 256 } 257 258 __set_bit(cmd->role_id, wl->roles_map); 259 *role_id = cmd->role_id; 260 261 out_free: 262 kfree(cmd); 263 264 out: 265 return ret; 266 } 267 268 int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id) 269 { 270 struct wl12xx_cmd_role_disable *cmd; 271 int ret; 272 273 wl1271_debug(DEBUG_CMD, "cmd role disable"); 274 275 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID)) 276 return -ENOENT; 277 278 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 279 if (!cmd) { 280 ret = -ENOMEM; 281 goto out; 282 } 283 cmd->role_id = *role_id; 284 285 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0); 286 if (ret < 0) { 287 wl1271_error("failed to initiate cmd role disable"); 288 goto out_free; 289 } 290 291 __clear_bit(*role_id, wl->roles_map); 292 *role_id = WL12XX_INVALID_ROLE_ID; 293 294 out_free: 295 kfree(cmd); 296 297 out: 298 return ret; 299 } 300 301 static int wlcore_get_new_session_id(struct wl1271 *wl, u8 hlid) 302 { 303 if (wl->session_ids[hlid] >= SESSION_COUNTER_MAX) 304 wl->session_ids[hlid] = 0; 305 306 wl->session_ids[hlid]++; 307 308 return wl->session_ids[hlid]; 309 } 310 311 int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 312 { 313 unsigned long flags; 314 u8 link = find_first_zero_bit(wl->links_map, WL12XX_MAX_LINKS); 315 if (link >= WL12XX_MAX_LINKS) 316 return -EBUSY; 317 318 wl->session_ids[link] = wlcore_get_new_session_id(wl, link); 319 320 /* these bits are used by op_tx */ 321 spin_lock_irqsave(&wl->wl_lock, flags); 322 __set_bit(link, wl->links_map); 323 __set_bit(link, wlvif->links_map); 324 spin_unlock_irqrestore(&wl->wl_lock, flags); 325 *hlid = link; 326 return 0; 327 } 328 329 void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 330 { 331 unsigned long flags; 332 333 if (*hlid == WL12XX_INVALID_LINK_ID) 334 return; 335 336 /* these bits are used by op_tx */ 337 spin_lock_irqsave(&wl->wl_lock, flags); 338 __clear_bit(*hlid, wl->links_map); 339 __clear_bit(*hlid, wlvif->links_map); 340 spin_unlock_irqrestore(&wl->wl_lock, flags); 341 342 wl->links[*hlid].allocated_pkts = 0; 343 wl->links[*hlid].prev_freed_pkts = 0; 344 wl->links[*hlid].ba_bitmap = 0; 345 memset(wl->links[*hlid].addr, 0, ETH_ALEN); 346 347 /* 348 * At this point op_tx() will not add more packets to the queues. We 349 * can purge them. 350 */ 351 wl1271_tx_reset_link_queues(wl, *hlid); 352 353 *hlid = WL12XX_INVALID_LINK_ID; 354 } 355 356 static u8 wlcore_get_native_channel_type(u8 nl_channel_type) 357 { 358 switch (nl_channel_type) { 359 case NL80211_CHAN_NO_HT: 360 return WLCORE_CHAN_NO_HT; 361 case NL80211_CHAN_HT20: 362 return WLCORE_CHAN_HT20; 363 case NL80211_CHAN_HT40MINUS: 364 return WLCORE_CHAN_HT40MINUS; 365 case NL80211_CHAN_HT40PLUS: 366 return WLCORE_CHAN_HT40PLUS; 367 default: 368 WARN_ON(1); 369 return WLCORE_CHAN_NO_HT; 370 } 371 } 372 373 static int wl12xx_cmd_role_start_dev(struct wl1271 *wl, 374 struct wl12xx_vif *wlvif, 375 enum ieee80211_band band, 376 int channel) 377 { 378 struct wl12xx_cmd_role_start *cmd; 379 int ret; 380 381 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 382 if (!cmd) { 383 ret = -ENOMEM; 384 goto out; 385 } 386 387 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id); 388 389 cmd->role_id = wlvif->dev_role_id; 390 if (band == IEEE80211_BAND_5GHZ) 391 cmd->band = WLCORE_BAND_5GHZ; 392 cmd->channel = channel; 393 394 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) { 395 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid); 396 if (ret) 397 goto out_free; 398 } 399 cmd->device.hlid = wlvif->dev_hlid; 400 cmd->device.session = wl->session_ids[wlvif->dev_hlid]; 401 402 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d", 403 cmd->role_id, cmd->device.hlid, cmd->device.session); 404 405 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 406 if (ret < 0) { 407 wl1271_error("failed to initiate cmd role enable"); 408 goto err_hlid; 409 } 410 411 goto out_free; 412 413 err_hlid: 414 /* clear links on error */ 415 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 416 417 out_free: 418 kfree(cmd); 419 420 out: 421 return ret; 422 } 423 424 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, 425 struct wl12xx_vif *wlvif) 426 { 427 struct wl12xx_cmd_role_stop *cmd; 428 int ret; 429 430 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID)) 431 return -EINVAL; 432 433 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 434 if (!cmd) { 435 ret = -ENOMEM; 436 goto out; 437 } 438 439 wl1271_debug(DEBUG_CMD, "cmd role stop dev"); 440 441 cmd->role_id = wlvif->dev_role_id; 442 cmd->disc_type = DISCONNECT_IMMEDIATE; 443 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 444 445 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 446 if (ret < 0) { 447 wl1271_error("failed to initiate cmd role stop"); 448 goto out_free; 449 } 450 451 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 452 453 out_free: 454 kfree(cmd); 455 456 out: 457 return ret; 458 } 459 460 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 461 { 462 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 463 struct wl12xx_cmd_role_start *cmd; 464 u32 supported_rates; 465 int ret; 466 467 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 468 if (!cmd) { 469 ret = -ENOMEM; 470 goto out; 471 } 472 473 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id); 474 475 cmd->role_id = wlvif->role_id; 476 if (wlvif->band == IEEE80211_BAND_5GHZ) 477 cmd->band = WLCORE_BAND_5GHZ; 478 cmd->channel = wlvif->channel; 479 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 480 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int); 481 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY; 482 cmd->sta.ssid_len = wlvif->ssid_len; 483 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len); 484 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN); 485 486 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES | 487 wlcore_hw_sta_get_ap_rate_mask(wl, wlvif); 488 if (wlvif->p2p) 489 supported_rates &= ~CONF_TX_CCK_RATES; 490 491 cmd->sta.local_rates = cpu_to_le32(supported_rates); 492 493 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 494 495 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 496 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 497 if (ret) 498 goto out_free; 499 } 500 cmd->sta.hlid = wlvif->sta.hlid; 501 cmd->sta.session = wl->session_ids[wlvif->sta.hlid]; 502 /* 503 * We don't have the correct remote rates in this stage, and there 504 * is no way to update them later, so use our supported rates instead. 505 * The fw will take the configured rate policies into account anyway. 506 */ 507 cmd->sta.remote_rates = cpu_to_le32(supported_rates); 508 509 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 510 "basic_rate_set: 0x%x, remote_rates: 0x%x", 511 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 512 wlvif->basic_rate_set, wlvif->rate_set); 513 514 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 515 if (ret < 0) { 516 wl1271_error("failed to initiate cmd role start sta"); 517 goto err_hlid; 518 } 519 520 wlvif->sta.role_chan_type = wlvif->channel_type; 521 goto out_free; 522 523 err_hlid: 524 /* clear links on error. */ 525 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 526 527 out_free: 528 kfree(cmd); 529 530 out: 531 return ret; 532 } 533 534 /* use this function to stop ibss as well */ 535 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 536 { 537 struct wl12xx_cmd_role_stop *cmd; 538 int ret; 539 540 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)) 541 return -EINVAL; 542 543 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 544 if (!cmd) { 545 ret = -ENOMEM; 546 goto out; 547 } 548 549 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id); 550 551 cmd->role_id = wlvif->role_id; 552 cmd->disc_type = DISCONNECT_IMMEDIATE; 553 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 554 555 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 556 if (ret < 0) { 557 wl1271_error("failed to initiate cmd role stop sta"); 558 goto out_free; 559 } 560 561 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 562 563 out_free: 564 kfree(cmd); 565 566 out: 567 return ret; 568 } 569 570 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 571 { 572 struct wl12xx_cmd_role_start *cmd; 573 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 574 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 575 u32 supported_rates; 576 int ret; 577 578 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id); 579 580 /* trying to use hidden SSID with an old hostapd version */ 581 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) { 582 wl1271_error("got a null SSID from beacon/bss"); 583 ret = -EINVAL; 584 goto out; 585 } 586 587 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 588 if (!cmd) { 589 ret = -ENOMEM; 590 goto out; 591 } 592 593 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid); 594 if (ret < 0) 595 goto out_free; 596 597 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid); 598 if (ret < 0) 599 goto out_free_global; 600 601 cmd->role_id = wlvif->role_id; 602 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period); 603 cmd->ap.bss_index = WL1271_AP_BSS_INDEX; 604 cmd->ap.global_hlid = wlvif->ap.global_hlid; 605 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid; 606 cmd->ap.global_session_id = wl->session_ids[wlvif->ap.global_hlid]; 607 cmd->ap.bcast_session_id = wl->session_ids[wlvif->ap.bcast_hlid]; 608 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 609 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int); 610 cmd->ap.dtim_interval = bss_conf->dtim_period; 611 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP; 612 /* FIXME: Change when adding DFS */ 613 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */ 614 cmd->ap.wmm = wlvif->wmm_enabled; 615 cmd->channel = wlvif->channel; 616 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 617 618 if (!bss_conf->hidden_ssid) { 619 /* take the SSID from the beacon for backward compatibility */ 620 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC; 621 cmd->ap.ssid_len = wlvif->ssid_len; 622 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len); 623 } else { 624 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN; 625 cmd->ap.ssid_len = bss_conf->ssid_len; 626 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len); 627 } 628 629 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES | 630 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif); 631 if (wlvif->p2p) 632 supported_rates &= ~CONF_TX_CCK_RATES; 633 634 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x", 635 supported_rates); 636 637 cmd->ap.local_rates = cpu_to_le32(supported_rates); 638 639 switch (wlvif->band) { 640 case IEEE80211_BAND_2GHZ: 641 cmd->band = WLCORE_BAND_2_4GHZ; 642 break; 643 case IEEE80211_BAND_5GHZ: 644 cmd->band = WLCORE_BAND_5GHZ; 645 break; 646 default: 647 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band); 648 cmd->band = WLCORE_BAND_2_4GHZ; 649 break; 650 } 651 652 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 653 if (ret < 0) { 654 wl1271_error("failed to initiate cmd role start ap"); 655 goto out_free_bcast; 656 } 657 658 goto out_free; 659 660 out_free_bcast: 661 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 662 663 out_free_global: 664 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 665 666 out_free: 667 kfree(cmd); 668 669 out: 670 return ret; 671 } 672 673 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 674 { 675 struct wl12xx_cmd_role_stop *cmd; 676 int ret; 677 678 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 679 if (!cmd) { 680 ret = -ENOMEM; 681 goto out; 682 } 683 684 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id); 685 686 cmd->role_id = wlvif->role_id; 687 688 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 689 if (ret < 0) { 690 wl1271_error("failed to initiate cmd role stop ap"); 691 goto out_free; 692 } 693 694 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 695 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 696 697 out_free: 698 kfree(cmd); 699 700 out: 701 return ret; 702 } 703 704 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif) 705 { 706 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 707 struct wl12xx_cmd_role_start *cmd; 708 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 709 int ret; 710 711 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 712 if (!cmd) { 713 ret = -ENOMEM; 714 goto out; 715 } 716 717 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id); 718 719 cmd->role_id = wlvif->role_id; 720 if (wlvif->band == IEEE80211_BAND_5GHZ) 721 cmd->band = WLCORE_BAND_5GHZ; 722 cmd->channel = wlvif->channel; 723 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 724 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int); 725 cmd->ibss.dtim_interval = bss_conf->dtim_period; 726 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY; 727 cmd->ibss.ssid_len = wlvif->ssid_len; 728 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len); 729 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN); 730 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 731 732 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 733 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 734 if (ret) 735 goto out_free; 736 } 737 cmd->ibss.hlid = wlvif->sta.hlid; 738 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set); 739 740 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 741 "basic_rate_set: 0x%x, remote_rates: 0x%x", 742 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 743 wlvif->basic_rate_set, wlvif->rate_set); 744 745 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM", 746 vif->bss_conf.bssid); 747 748 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 749 if (ret < 0) { 750 wl1271_error("failed to initiate cmd role enable"); 751 goto err_hlid; 752 } 753 754 goto out_free; 755 756 err_hlid: 757 /* clear links on error. */ 758 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 759 760 out_free: 761 kfree(cmd); 762 763 out: 764 return ret; 765 } 766 767 768 /** 769 * send test command to firmware 770 * 771 * @wl: wl struct 772 * @buf: buffer containing the command, with all headers, must work with dma 773 * @len: length of the buffer 774 * @answer: is answer needed 775 */ 776 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer) 777 { 778 int ret; 779 size_t res_len = 0; 780 781 wl1271_debug(DEBUG_CMD, "cmd test"); 782 783 if (answer) 784 res_len = buf_len; 785 786 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len); 787 788 if (ret < 0) { 789 wl1271_warning("TEST command failed"); 790 return ret; 791 } 792 793 return ret; 794 } 795 EXPORT_SYMBOL_GPL(wl1271_cmd_test); 796 797 /** 798 * read acx from firmware 799 * 800 * @wl: wl struct 801 * @id: acx id 802 * @buf: buffer for the response, including all headers, must work with dma 803 * @len: length of buf 804 */ 805 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len) 806 { 807 struct acx_header *acx = buf; 808 int ret; 809 810 wl1271_debug(DEBUG_CMD, "cmd interrogate"); 811 812 acx->id = cpu_to_le16(id); 813 814 /* payload length, does not include any headers */ 815 acx->len = cpu_to_le16(len - sizeof(*acx)); 816 817 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len); 818 if (ret < 0) 819 wl1271_error("INTERROGATE command failed"); 820 821 return ret; 822 } 823 824 /** 825 * write acx value to firmware 826 * 827 * @wl: wl struct 828 * @id: acx id 829 * @buf: buffer containing acx, including all headers, must work with dma 830 * @len: length of buf 831 * @valid_rets: bitmap of valid cmd status codes (i.e. return values). 832 * return the cmd status on success. 833 */ 834 int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf, 835 size_t len, unsigned long valid_rets) 836 { 837 struct acx_header *acx = buf; 838 int ret; 839 840 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id); 841 842 acx->id = cpu_to_le16(id); 843 844 /* payload length, does not include any headers */ 845 acx->len = cpu_to_le16(len - sizeof(*acx)); 846 847 ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0, 848 valid_rets); 849 if (ret < 0) { 850 wl1271_warning("CONFIGURE command NOK"); 851 return ret; 852 } 853 854 return ret; 855 } 856 857 /* 858 * wrapper for wlcore_cmd_configure that accepts only success status. 859 * return 0 on success 860 */ 861 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len) 862 { 863 int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0); 864 865 if (ret < 0) 866 return ret; 867 return 0; 868 } 869 EXPORT_SYMBOL_GPL(wl1271_cmd_configure); 870 871 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable) 872 { 873 struct cmd_enabledisable_path *cmd; 874 int ret; 875 u16 cmd_rx, cmd_tx; 876 877 wl1271_debug(DEBUG_CMD, "cmd data path"); 878 879 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 880 if (!cmd) { 881 ret = -ENOMEM; 882 goto out; 883 } 884 885 /* the channel here is only used for calibration, so hardcoded to 1 */ 886 cmd->channel = 1; 887 888 if (enable) { 889 cmd_rx = CMD_ENABLE_RX; 890 cmd_tx = CMD_ENABLE_TX; 891 } else { 892 cmd_rx = CMD_DISABLE_RX; 893 cmd_tx = CMD_DISABLE_TX; 894 } 895 896 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0); 897 if (ret < 0) { 898 wl1271_error("rx %s cmd for channel %d failed", 899 enable ? "start" : "stop", cmd->channel); 900 goto out; 901 } 902 903 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d", 904 enable ? "start" : "stop", cmd->channel); 905 906 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0); 907 if (ret < 0) { 908 wl1271_error("tx %s cmd for channel %d failed", 909 enable ? "start" : "stop", cmd->channel); 910 goto out; 911 } 912 913 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d", 914 enable ? "start" : "stop", cmd->channel); 915 916 out: 917 kfree(cmd); 918 return ret; 919 } 920 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path); 921 922 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif, 923 u8 ps_mode, u16 auto_ps_timeout) 924 { 925 struct wl1271_cmd_ps_params *ps_params = NULL; 926 int ret = 0; 927 928 wl1271_debug(DEBUG_CMD, "cmd set ps mode"); 929 930 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL); 931 if (!ps_params) { 932 ret = -ENOMEM; 933 goto out; 934 } 935 936 ps_params->role_id = wlvif->role_id; 937 ps_params->ps_mode = ps_mode; 938 ps_params->auto_ps_timeout = auto_ps_timeout; 939 940 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params, 941 sizeof(*ps_params), 0); 942 if (ret < 0) { 943 wl1271_error("cmd set_ps_mode failed"); 944 goto out; 945 } 946 947 out: 948 kfree(ps_params); 949 return ret; 950 } 951 952 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id, 953 u16 template_id, void *buf, size_t buf_len, 954 int index, u32 rates) 955 { 956 struct wl1271_cmd_template_set *cmd; 957 int ret = 0; 958 959 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)", 960 template_id, role_id); 961 962 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE); 963 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE); 964 965 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 966 if (!cmd) { 967 ret = -ENOMEM; 968 goto out; 969 } 970 971 /* during initialization wlvif is NULL */ 972 cmd->role_id = role_id; 973 cmd->len = cpu_to_le16(buf_len); 974 cmd->template_type = template_id; 975 cmd->enabled_rates = cpu_to_le32(rates); 976 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit; 977 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit; 978 cmd->index = index; 979 980 if (buf) 981 memcpy(cmd->template_data, buf, buf_len); 982 983 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0); 984 if (ret < 0) { 985 wl1271_warning("cmd set_template failed: %d", ret); 986 goto out_free; 987 } 988 989 out_free: 990 kfree(cmd); 991 992 out: 993 return ret; 994 } 995 996 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) 997 { 998 struct sk_buff *skb = NULL; 999 int size; 1000 void *ptr; 1001 int ret = -ENOMEM; 1002 1003 1004 if (wlvif->bss_type == BSS_TYPE_IBSS) { 1005 size = sizeof(struct wl12xx_null_data_template); 1006 ptr = NULL; 1007 } else { 1008 skb = ieee80211_nullfunc_get(wl->hw, 1009 wl12xx_wlvif_to_vif(wlvif)); 1010 if (!skb) 1011 goto out; 1012 size = skb->len; 1013 ptr = skb->data; 1014 } 1015 1016 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1017 CMD_TEMPL_NULL_DATA, ptr, size, 0, 1018 wlvif->basic_rate); 1019 1020 out: 1021 dev_kfree_skb(skb); 1022 if (ret) 1023 wl1271_warning("cmd buld null data failed %d", ret); 1024 1025 return ret; 1026 1027 } 1028 1029 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, 1030 struct wl12xx_vif *wlvif) 1031 { 1032 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1033 struct sk_buff *skb = NULL; 1034 int ret = -ENOMEM; 1035 1036 skb = ieee80211_nullfunc_get(wl->hw, vif); 1037 if (!skb) 1038 goto out; 1039 1040 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV, 1041 skb->data, skb->len, 1042 wlvif->sta.klv_template_id, 1043 wlvif->basic_rate); 1044 1045 out: 1046 dev_kfree_skb(skb); 1047 if (ret) 1048 wl1271_warning("cmd build klv null data failed %d", ret); 1049 1050 return ret; 1051 1052 } 1053 1054 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1055 u16 aid) 1056 { 1057 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1058 struct sk_buff *skb; 1059 int ret = 0; 1060 1061 skb = ieee80211_pspoll_get(wl->hw, vif); 1062 if (!skb) 1063 goto out; 1064 1065 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1066 CMD_TEMPL_PS_POLL, skb->data, 1067 skb->len, 0, wlvif->basic_rate_set); 1068 1069 out: 1070 dev_kfree_skb(skb); 1071 return ret; 1072 } 1073 1074 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1075 u8 role_id, u8 band, 1076 const u8 *ssid, size_t ssid_len, 1077 const u8 *ie, size_t ie_len, bool sched_scan) 1078 { 1079 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1080 struct sk_buff *skb; 1081 int ret; 1082 u32 rate; 1083 u16 template_id_2_4 = wl->scan_templ_id_2_4; 1084 u16 template_id_5 = wl->scan_templ_id_5; 1085 1086 skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len, 1087 ie, ie_len); 1088 if (!skb) { 1089 ret = -ENOMEM; 1090 goto out; 1091 } 1092 1093 wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len); 1094 1095 if (sched_scan && 1096 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) { 1097 template_id_2_4 = wl->sched_scan_templ_id_2_4; 1098 template_id_5 = wl->sched_scan_templ_id_5; 1099 } 1100 1101 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]); 1102 if (band == IEEE80211_BAND_2GHZ) 1103 ret = wl1271_cmd_template_set(wl, role_id, 1104 template_id_2_4, 1105 skb->data, skb->len, 0, rate); 1106 else 1107 ret = wl1271_cmd_template_set(wl, role_id, 1108 template_id_5, 1109 skb->data, skb->len, 0, rate); 1110 1111 out: 1112 dev_kfree_skb(skb); 1113 return ret; 1114 } 1115 EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req); 1116 1117 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl, 1118 struct wl12xx_vif *wlvif, 1119 struct sk_buff *skb) 1120 { 1121 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1122 int ret; 1123 u32 rate; 1124 1125 if (!skb) 1126 skb = ieee80211_ap_probereq_get(wl->hw, vif); 1127 if (!skb) 1128 goto out; 1129 1130 wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len); 1131 1132 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]); 1133 if (wlvif->band == IEEE80211_BAND_2GHZ) 1134 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1135 CMD_TEMPL_CFG_PROBE_REQ_2_4, 1136 skb->data, skb->len, 0, rate); 1137 else 1138 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1139 CMD_TEMPL_CFG_PROBE_REQ_5, 1140 skb->data, skb->len, 0, rate); 1141 1142 if (ret < 0) 1143 wl1271_error("Unable to set ap probe request template."); 1144 1145 out: 1146 return skb; 1147 } 1148 1149 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1150 { 1151 int ret, extra = 0; 1152 u16 fc; 1153 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1154 struct sk_buff *skb; 1155 struct wl12xx_arp_rsp_template *tmpl; 1156 struct ieee80211_hdr_3addr *hdr; 1157 struct arphdr *arp_hdr; 1158 1159 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) + 1160 WL1271_EXTRA_SPACE_MAX); 1161 if (!skb) { 1162 wl1271_error("failed to allocate buffer for arp rsp template"); 1163 return -ENOMEM; 1164 } 1165 1166 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX); 1167 1168 tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl)); 1169 memset(tmpl, 0, sizeof(*tmpl)); 1170 1171 /* llc layer */ 1172 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header)); 1173 tmpl->llc_type = cpu_to_be16(ETH_P_ARP); 1174 1175 /* arp header */ 1176 arp_hdr = &tmpl->arp_hdr; 1177 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER); 1178 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP); 1179 arp_hdr->ar_hln = ETH_ALEN; 1180 arp_hdr->ar_pln = 4; 1181 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY); 1182 1183 /* arp payload */ 1184 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN); 1185 tmpl->sender_ip = wlvif->ip_addr; 1186 1187 /* encryption space */ 1188 switch (wlvif->encryption_type) { 1189 case KEY_TKIP: 1190 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) 1191 extra = WL1271_EXTRA_SPACE_TKIP; 1192 break; 1193 case KEY_AES: 1194 extra = WL1271_EXTRA_SPACE_AES; 1195 break; 1196 case KEY_NONE: 1197 case KEY_WEP: 1198 case KEY_GEM: 1199 extra = 0; 1200 break; 1201 default: 1202 wl1271_warning("Unknown encryption type: %d", 1203 wlvif->encryption_type); 1204 ret = -EINVAL; 1205 goto out; 1206 } 1207 1208 if (extra) { 1209 u8 *space = skb_push(skb, extra); 1210 memset(space, 0, extra); 1211 } 1212 1213 /* QoS header - BE */ 1214 if (wlvif->sta.qos) 1215 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16)); 1216 1217 /* mac80211 header */ 1218 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr)); 1219 memset(hdr, 0, sizeof(*hdr)); 1220 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS; 1221 if (wlvif->sta.qos) 1222 fc |= IEEE80211_STYPE_QOS_DATA; 1223 else 1224 fc |= IEEE80211_STYPE_DATA; 1225 if (wlvif->encryption_type != KEY_NONE) 1226 fc |= IEEE80211_FCTL_PROTECTED; 1227 1228 hdr->frame_control = cpu_to_le16(fc); 1229 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN); 1230 memcpy(hdr->addr2, vif->addr, ETH_ALEN); 1231 memset(hdr->addr3, 0xff, ETH_ALEN); 1232 1233 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP, 1234 skb->data, skb->len, 0, 1235 wlvif->basic_rate); 1236 out: 1237 dev_kfree_skb(skb); 1238 return ret; 1239 } 1240 1241 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif) 1242 { 1243 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 1244 struct ieee80211_qos_hdr template; 1245 1246 memset(&template, 0, sizeof(template)); 1247 1248 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN); 1249 memcpy(template.addr2, vif->addr, ETH_ALEN); 1250 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN); 1251 1252 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 1253 IEEE80211_STYPE_QOS_NULLFUNC | 1254 IEEE80211_FCTL_TODS); 1255 1256 /* FIXME: not sure what priority to use here */ 1257 template.qos_ctrl = cpu_to_le16(0); 1258 1259 return wl1271_cmd_template_set(wl, wlvif->role_id, 1260 CMD_TEMPL_QOS_NULL_DATA, &template, 1261 sizeof(template), 0, 1262 wlvif->basic_rate); 1263 } 1264 1265 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid) 1266 { 1267 struct wl1271_cmd_set_keys *cmd; 1268 int ret = 0; 1269 1270 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id); 1271 1272 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1273 if (!cmd) { 1274 ret = -ENOMEM; 1275 goto out; 1276 } 1277 1278 cmd->hlid = hlid; 1279 cmd->key_id = id; 1280 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1281 cmd->key_action = cpu_to_le16(KEY_SET_ID); 1282 cmd->key_type = KEY_WEP; 1283 1284 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1285 if (ret < 0) { 1286 wl1271_warning("cmd set_default_wep_key failed: %d", ret); 1287 goto out; 1288 } 1289 1290 out: 1291 kfree(cmd); 1292 1293 return ret; 1294 } 1295 1296 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1297 u16 action, u8 id, u8 key_type, 1298 u8 key_size, const u8 *key, const u8 *addr, 1299 u32 tx_seq_32, u16 tx_seq_16) 1300 { 1301 struct wl1271_cmd_set_keys *cmd; 1302 int ret = 0; 1303 1304 /* hlid might have already been deleted */ 1305 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) 1306 return 0; 1307 1308 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1309 if (!cmd) { 1310 ret = -ENOMEM; 1311 goto out; 1312 } 1313 1314 cmd->hlid = wlvif->sta.hlid; 1315 1316 if (key_type == KEY_WEP) 1317 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1318 else if (is_broadcast_ether_addr(addr)) 1319 cmd->lid_key_type = BROADCAST_LID_TYPE; 1320 else 1321 cmd->lid_key_type = UNICAST_LID_TYPE; 1322 1323 cmd->key_action = cpu_to_le16(action); 1324 cmd->key_size = key_size; 1325 cmd->key_type = key_type; 1326 1327 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1328 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1329 1330 cmd->key_id = id; 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 1343 } else { 1344 memcpy(cmd->key, key, key_size); 1345 } 1346 1347 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd)); 1348 1349 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1350 if (ret < 0) { 1351 wl1271_warning("could not set keys"); 1352 goto out; 1353 } 1354 1355 out: 1356 kfree(cmd); 1357 1358 return ret; 1359 } 1360 1361 /* 1362 * TODO: merge with sta/ibss into 1 set_key function. 1363 * note there are slight diffs 1364 */ 1365 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1366 u16 action, u8 id, u8 key_type, 1367 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32, 1368 u16 tx_seq_16) 1369 { 1370 struct wl1271_cmd_set_keys *cmd; 1371 int ret = 0; 1372 u8 lid_type; 1373 1374 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1375 if (!cmd) 1376 return -ENOMEM; 1377 1378 if (hlid == wlvif->ap.bcast_hlid) { 1379 if (key_type == KEY_WEP) 1380 lid_type = WEP_DEFAULT_LID_TYPE; 1381 else 1382 lid_type = BROADCAST_LID_TYPE; 1383 } else { 1384 lid_type = UNICAST_LID_TYPE; 1385 } 1386 1387 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d" 1388 " hlid: %d", (int)action, (int)id, (int)lid_type, 1389 (int)key_type, (int)hlid); 1390 1391 cmd->lid_key_type = lid_type; 1392 cmd->hlid = hlid; 1393 cmd->key_action = cpu_to_le16(action); 1394 cmd->key_size = key_size; 1395 cmd->key_type = key_type; 1396 cmd->key_id = id; 1397 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1398 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1399 1400 if (key_type == KEY_TKIP) { 1401 /* 1402 * We get the key in the following form: 1403 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1404 * but the target is expecting: 1405 * TKIP - RX MIC - TX MIC 1406 */ 1407 memcpy(cmd->key, key, 16); 1408 memcpy(cmd->key + 16, key + 24, 8); 1409 memcpy(cmd->key + 24, key + 16, 8); 1410 } else { 1411 memcpy(cmd->key, key, key_size); 1412 } 1413 1414 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd)); 1415 1416 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1417 if (ret < 0) { 1418 wl1271_warning("could not set ap keys"); 1419 goto out; 1420 } 1421 1422 out: 1423 kfree(cmd); 1424 return ret; 1425 } 1426 1427 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1428 u8 hlid) 1429 { 1430 struct wl12xx_cmd_set_peer_state *cmd; 1431 int ret = 0; 1432 1433 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid); 1434 1435 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1436 if (!cmd) { 1437 ret = -ENOMEM; 1438 goto out; 1439 } 1440 1441 cmd->hlid = hlid; 1442 cmd->state = WL1271_CMD_STA_STATE_CONNECTED; 1443 1444 /* wmm param is valid only for station role */ 1445 if (wlvif->bss_type == BSS_TYPE_STA_BSS) 1446 cmd->wmm = wlvif->wmm_enabled; 1447 1448 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0); 1449 if (ret < 0) { 1450 wl1271_error("failed to send set peer state command"); 1451 goto out_free; 1452 } 1453 1454 out_free: 1455 kfree(cmd); 1456 1457 out: 1458 return ret; 1459 } 1460 1461 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1462 struct ieee80211_sta *sta, u8 hlid) 1463 { 1464 struct wl12xx_cmd_add_peer *cmd; 1465 int i, ret; 1466 u32 sta_rates; 1467 1468 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid); 1469 1470 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1471 if (!cmd) { 1472 ret = -ENOMEM; 1473 goto out; 1474 } 1475 1476 memcpy(cmd->addr, sta->addr, ETH_ALEN); 1477 cmd->bss_index = WL1271_AP_BSS_INDEX; 1478 cmd->aid = sta->aid; 1479 cmd->hlid = hlid; 1480 cmd->sp_len = sta->max_sp; 1481 cmd->wmm = sta->wme ? 1 : 0; 1482 cmd->session_id = wl->session_ids[hlid]; 1483 1484 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++) 1485 if (sta->wme && (sta->uapsd_queues & BIT(i))) 1486 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1487 WL1271_PSD_UPSD_TRIGGER; 1488 else 1489 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1490 WL1271_PSD_LEGACY; 1491 1492 1493 sta_rates = sta->supp_rates[wlvif->band]; 1494 if (sta->ht_cap.ht_supported) 1495 sta_rates |= 1496 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) | 1497 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET); 1498 1499 cmd->supported_rates = 1500 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates, 1501 wlvif->band)); 1502 1503 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x", 1504 cmd->supported_rates, sta->uapsd_queues); 1505 1506 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0); 1507 if (ret < 0) { 1508 wl1271_error("failed to initiate cmd add peer"); 1509 goto out_free; 1510 } 1511 1512 out_free: 1513 kfree(cmd); 1514 1515 out: 1516 return ret; 1517 } 1518 1519 int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid) 1520 { 1521 struct wl12xx_cmd_remove_peer *cmd; 1522 int ret; 1523 bool timeout = false; 1524 1525 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid); 1526 1527 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1528 if (!cmd) { 1529 ret = -ENOMEM; 1530 goto out; 1531 } 1532 1533 cmd->hlid = hlid; 1534 /* We never send a deauth, mac80211 is in charge of this */ 1535 cmd->reason_opcode = 0; 1536 cmd->send_deauth_flag = 0; 1537 1538 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0); 1539 if (ret < 0) { 1540 wl1271_error("failed to initiate cmd remove peer"); 1541 goto out_free; 1542 } 1543 1544 ret = wl->ops->wait_for_event(wl, 1545 WLCORE_EVENT_PEER_REMOVE_COMPLETE, 1546 &timeout); 1547 1548 /* 1549 * We are ok with a timeout here. The event is sometimes not sent 1550 * due to a firmware bug. In case of another error (like SDIO timeout) 1551 * queue a recovery. 1552 */ 1553 if (ret) 1554 wl12xx_queue_recovery_work(wl); 1555 1556 out_free: 1557 kfree(cmd); 1558 1559 out: 1560 return ret; 1561 } 1562 1563 static int wlcore_get_reg_conf_ch_idx(enum ieee80211_band band, u16 ch) 1564 { 1565 int idx = -1; 1566 1567 switch (band) { 1568 case IEEE80211_BAND_5GHZ: 1569 if (ch >= 8 && ch <= 16) 1570 idx = ((ch-8)/4 + 18); 1571 else if (ch >= 34 && ch <= 64) 1572 idx = ((ch-34)/2 + 3 + 18); 1573 else if (ch >= 100 && ch <= 140) 1574 idx = ((ch-100)/4 + 15 + 18); 1575 else if (ch >= 149 && ch <= 165) 1576 idx = ((ch-149)/4 + 26 + 18); 1577 else 1578 idx = -1; 1579 break; 1580 case IEEE80211_BAND_2GHZ: 1581 if (ch >= 1 && ch <= 14) 1582 idx = ch - 1; 1583 else 1584 idx = -1; 1585 break; 1586 default: 1587 wl1271_error("get reg conf ch idx - unknown band: %d", 1588 (int)band); 1589 } 1590 1591 return idx; 1592 } 1593 1594 void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel, 1595 enum ieee80211_band band) 1596 { 1597 int ch_bit_idx = 0; 1598 1599 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF)) 1600 return; 1601 1602 ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel); 1603 1604 if (ch_bit_idx > 0 && ch_bit_idx <= WL1271_MAX_CHANNELS) 1605 set_bit(ch_bit_idx, (long *)wl->reg_ch_conf_pending); 1606 } 1607 1608 int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl) 1609 { 1610 struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL; 1611 int ret = 0, i, b, ch_bit_idx; 1612 struct ieee80211_channel *channel; 1613 u32 tmp_ch_bitmap[2]; 1614 u16 ch; 1615 struct wiphy *wiphy = wl->hw->wiphy; 1616 struct ieee80211_supported_band *band; 1617 bool timeout = false; 1618 1619 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF)) 1620 return 0; 1621 1622 wl1271_debug(DEBUG_CMD, "cmd reg domain config"); 1623 1624 memset(tmp_ch_bitmap, 0, sizeof(tmp_ch_bitmap)); 1625 1626 for (b = IEEE80211_BAND_2GHZ; b <= IEEE80211_BAND_5GHZ; b++) { 1627 band = wiphy->bands[b]; 1628 for (i = 0; i < band->n_channels; i++) { 1629 channel = &band->channels[i]; 1630 ch = channel->hw_value; 1631 1632 if (channel->flags & (IEEE80211_CHAN_DISABLED | 1633 IEEE80211_CHAN_RADAR | 1634 IEEE80211_CHAN_PASSIVE_SCAN)) 1635 continue; 1636 1637 ch_bit_idx = wlcore_get_reg_conf_ch_idx(b, ch); 1638 if (ch_bit_idx < 0) 1639 continue; 1640 1641 set_bit(ch_bit_idx, (long *)tmp_ch_bitmap); 1642 } 1643 } 1644 1645 tmp_ch_bitmap[0] |= wl->reg_ch_conf_pending[0]; 1646 tmp_ch_bitmap[1] |= wl->reg_ch_conf_pending[1]; 1647 1648 if (!memcmp(tmp_ch_bitmap, wl->reg_ch_conf_last, sizeof(tmp_ch_bitmap))) 1649 goto out; 1650 1651 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1652 if (!cmd) { 1653 ret = -ENOMEM; 1654 goto out; 1655 } 1656 1657 cmd->ch_bit_map1 = cpu_to_le32(tmp_ch_bitmap[0]); 1658 cmd->ch_bit_map2 = cpu_to_le32(tmp_ch_bitmap[1]); 1659 1660 wl1271_debug(DEBUG_CMD, 1661 "cmd reg domain bitmap1: 0x%08x, bitmap2: 0x%08x", 1662 cmd->ch_bit_map1, cmd->ch_bit_map2); 1663 1664 ret = wl1271_cmd_send(wl, CMD_DFS_CHANNEL_CONFIG, cmd, sizeof(*cmd), 0); 1665 if (ret < 0) { 1666 wl1271_error("failed to send reg domain dfs config"); 1667 goto out; 1668 } 1669 1670 ret = wl->ops->wait_for_event(wl, 1671 WLCORE_EVENT_DFS_CONFIG_COMPLETE, 1672 &timeout); 1673 if (ret < 0 || timeout) { 1674 wl1271_error("reg domain conf %serror", 1675 timeout ? "completion " : ""); 1676 ret = timeout ? -ETIMEDOUT : ret; 1677 goto out; 1678 } 1679 1680 memcpy(wl->reg_ch_conf_last, tmp_ch_bitmap, sizeof(tmp_ch_bitmap)); 1681 memset(wl->reg_ch_conf_pending, 0, sizeof(wl->reg_ch_conf_pending)); 1682 1683 out: 1684 kfree(cmd); 1685 return ret; 1686 } 1687 1688 int wl12xx_cmd_config_fwlog(struct wl1271 *wl) 1689 { 1690 struct wl12xx_cmd_config_fwlog *cmd; 1691 int ret = 0; 1692 1693 wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); 1694 1695 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1696 if (!cmd) { 1697 ret = -ENOMEM; 1698 goto out; 1699 } 1700 1701 cmd->logger_mode = wl->conf.fwlog.mode; 1702 cmd->log_severity = wl->conf.fwlog.severity; 1703 cmd->timestamp = wl->conf.fwlog.timestamp; 1704 cmd->output = wl->conf.fwlog.output; 1705 cmd->threshold = wl->conf.fwlog.threshold; 1706 1707 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); 1708 if (ret < 0) { 1709 wl1271_error("failed to send config firmware logger command"); 1710 goto out_free; 1711 } 1712 1713 out_free: 1714 kfree(cmd); 1715 1716 out: 1717 return ret; 1718 } 1719 1720 int wl12xx_cmd_start_fwlog(struct wl1271 *wl) 1721 { 1722 struct wl12xx_cmd_start_fwlog *cmd; 1723 int ret = 0; 1724 1725 wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); 1726 1727 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1728 if (!cmd) { 1729 ret = -ENOMEM; 1730 goto out; 1731 } 1732 1733 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); 1734 if (ret < 0) { 1735 wl1271_error("failed to send start firmware logger command"); 1736 goto out_free; 1737 } 1738 1739 out_free: 1740 kfree(cmd); 1741 1742 out: 1743 return ret; 1744 } 1745 1746 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) 1747 { 1748 struct wl12xx_cmd_stop_fwlog *cmd; 1749 int ret = 0; 1750 1751 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); 1752 1753 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1754 if (!cmd) { 1755 ret = -ENOMEM; 1756 goto out; 1757 } 1758 1759 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); 1760 if (ret < 0) { 1761 wl1271_error("failed to send stop firmware logger command"); 1762 goto out_free; 1763 } 1764 1765 out_free: 1766 kfree(cmd); 1767 1768 out: 1769 return ret; 1770 } 1771 1772 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1773 u8 role_id, enum ieee80211_band band, u8 channel) 1774 { 1775 struct wl12xx_cmd_roc *cmd; 1776 int ret = 0; 1777 1778 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id); 1779 1780 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID)) 1781 return -EINVAL; 1782 1783 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1784 if (!cmd) { 1785 ret = -ENOMEM; 1786 goto out; 1787 } 1788 1789 cmd->role_id = role_id; 1790 cmd->channel = channel; 1791 switch (band) { 1792 case IEEE80211_BAND_2GHZ: 1793 cmd->band = WLCORE_BAND_2_4GHZ; 1794 break; 1795 case IEEE80211_BAND_5GHZ: 1796 cmd->band = WLCORE_BAND_5GHZ; 1797 break; 1798 default: 1799 wl1271_error("roc - unknown band: %d", (int)wlvif->band); 1800 ret = -EINVAL; 1801 goto out_free; 1802 } 1803 1804 1805 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0); 1806 if (ret < 0) { 1807 wl1271_error("failed to send ROC command"); 1808 goto out_free; 1809 } 1810 1811 out_free: 1812 kfree(cmd); 1813 1814 out: 1815 return ret; 1816 } 1817 1818 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id) 1819 { 1820 struct wl12xx_cmd_croc *cmd; 1821 int ret = 0; 1822 1823 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id); 1824 1825 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1826 if (!cmd) { 1827 ret = -ENOMEM; 1828 goto out; 1829 } 1830 cmd->role_id = role_id; 1831 1832 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd, 1833 sizeof(*cmd), 0); 1834 if (ret < 0) { 1835 wl1271_error("failed to send ROC command"); 1836 goto out_free; 1837 } 1838 1839 out_free: 1840 kfree(cmd); 1841 1842 out: 1843 return ret; 1844 } 1845 1846 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id, 1847 enum ieee80211_band band, u8 channel) 1848 { 1849 int ret = 0; 1850 1851 if (WARN_ON(test_bit(role_id, wl->roc_map))) 1852 return 0; 1853 1854 ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel); 1855 if (ret < 0) 1856 goto out; 1857 1858 __set_bit(role_id, wl->roc_map); 1859 out: 1860 return ret; 1861 } 1862 1863 int wl12xx_croc(struct wl1271 *wl, u8 role_id) 1864 { 1865 int ret = 0; 1866 1867 if (WARN_ON(!test_bit(role_id, wl->roc_map))) 1868 return 0; 1869 1870 ret = wl12xx_cmd_croc(wl, role_id); 1871 if (ret < 0) 1872 goto out; 1873 1874 __clear_bit(role_id, wl->roc_map); 1875 1876 /* 1877 * Rearm the tx watchdog when removing the last ROC. This prevents 1878 * recoveries due to just finished ROCs - when Tx hasn't yet had 1879 * a chance to get out. 1880 */ 1881 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) 1882 wl12xx_rearm_tx_watchdog_locked(wl); 1883 out: 1884 return ret; 1885 } 1886 1887 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1888 { 1889 struct wl12xx_cmd_stop_channel_switch *cmd; 1890 int ret; 1891 1892 wl1271_debug(DEBUG_ACX, "cmd stop channel switch"); 1893 1894 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1895 if (!cmd) { 1896 ret = -ENOMEM; 1897 goto out; 1898 } 1899 1900 cmd->role_id = wlvif->role_id; 1901 1902 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0); 1903 if (ret < 0) { 1904 wl1271_error("failed to stop channel switch command"); 1905 goto out_free; 1906 } 1907 1908 out_free: 1909 kfree(cmd); 1910 1911 out: 1912 return ret; 1913 } 1914 1915 /* start dev role and roc on its channel */ 1916 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1917 enum ieee80211_band band, int channel) 1918 { 1919 int ret; 1920 1921 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1922 wlvif->bss_type == BSS_TYPE_IBSS))) 1923 return -EINVAL; 1924 1925 ret = wl12xx_cmd_role_enable(wl, 1926 wl12xx_wlvif_to_vif(wlvif)->addr, 1927 WL1271_ROLE_DEVICE, 1928 &wlvif->dev_role_id); 1929 if (ret < 0) 1930 goto out; 1931 1932 ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel); 1933 if (ret < 0) 1934 goto out_disable; 1935 1936 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel); 1937 if (ret < 0) 1938 goto out_stop; 1939 1940 return 0; 1941 1942 out_stop: 1943 wl12xx_cmd_role_stop_dev(wl, wlvif); 1944 out_disable: 1945 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 1946 out: 1947 return ret; 1948 } 1949 1950 /* croc dev hlid, and stop the role */ 1951 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1952 { 1953 int ret; 1954 1955 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1956 wlvif->bss_type == BSS_TYPE_IBSS))) 1957 return -EINVAL; 1958 1959 /* flush all pending packets */ 1960 ret = wlcore_tx_work_locked(wl); 1961 if (ret < 0) 1962 goto out; 1963 1964 if (test_bit(wlvif->dev_role_id, wl->roc_map)) { 1965 ret = wl12xx_croc(wl, wlvif->dev_role_id); 1966 if (ret < 0) 1967 goto out; 1968 } 1969 1970 ret = wl12xx_cmd_role_stop_dev(wl, wlvif); 1971 if (ret < 0) 1972 goto out; 1973 1974 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 1975 if (ret < 0) 1976 goto out; 1977 1978 out: 1979 return ret; 1980 } 1981