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); 325 326 /* take the last "freed packets" value from the current FW status */ 327 wl->links[link].prev_freed_pkts = 328 wl->fw_status_2->counters.tx_lnk_free_pkts[link]; 329 wl->links[link].wlvif = wlvif; 330 331 /* 332 * Take saved value for total freed packets from wlvif, in case this is 333 * recovery/resume 334 */ 335 if (wlvif->bss_type != BSS_TYPE_AP_BSS) 336 wl->links[link].total_freed_pkts = wlvif->total_freed_pkts; 337 338 *hlid = link; 339 340 wl->active_link_count++; 341 return 0; 342 } 343 344 void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 345 { 346 unsigned long flags; 347 348 if (*hlid == WL12XX_INVALID_LINK_ID) 349 return; 350 351 /* these bits are used by op_tx */ 352 spin_lock_irqsave(&wl->wl_lock, flags); 353 __clear_bit(*hlid, wl->links_map); 354 __clear_bit(*hlid, wlvif->links_map); 355 spin_unlock_irqrestore(&wl->wl_lock, flags); 356 357 wl->links[*hlid].allocated_pkts = 0; 358 wl->links[*hlid].prev_freed_pkts = 0; 359 wl->links[*hlid].ba_bitmap = 0; 360 memset(wl->links[*hlid].addr, 0, ETH_ALEN); 361 362 /* 363 * At this point op_tx() will not add more packets to the queues. We 364 * can purge them. 365 */ 366 wl1271_tx_reset_link_queues(wl, *hlid); 367 wl->links[*hlid].wlvif = NULL; 368 369 if (wlvif->bss_type == BSS_TYPE_STA_BSS || 370 (wlvif->bss_type == BSS_TYPE_AP_BSS && 371 *hlid == wlvif->ap.bcast_hlid)) { 372 /* 373 * save the total freed packets in the wlvif, in case this is 374 * recovery or suspend 375 */ 376 wlvif->total_freed_pkts = wl->links[*hlid].total_freed_pkts; 377 378 /* 379 * increment the initial seq number on recovery to account for 380 * transmitted packets that we haven't yet got in the FW status 381 */ 382 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) 383 wlvif->total_freed_pkts += 384 WL1271_TX_SQN_POST_RECOVERY_PADDING; 385 } 386 387 wl->links[*hlid].total_freed_pkts = 0; 388 389 *hlid = WL12XX_INVALID_LINK_ID; 390 wl->active_link_count--; 391 WARN_ON_ONCE(wl->active_link_count < 0); 392 } 393 394 static u8 wlcore_get_native_channel_type(u8 nl_channel_type) 395 { 396 switch (nl_channel_type) { 397 case NL80211_CHAN_NO_HT: 398 return WLCORE_CHAN_NO_HT; 399 case NL80211_CHAN_HT20: 400 return WLCORE_CHAN_HT20; 401 case NL80211_CHAN_HT40MINUS: 402 return WLCORE_CHAN_HT40MINUS; 403 case NL80211_CHAN_HT40PLUS: 404 return WLCORE_CHAN_HT40PLUS; 405 default: 406 WARN_ON(1); 407 return WLCORE_CHAN_NO_HT; 408 } 409 } 410 411 static int wl12xx_cmd_role_start_dev(struct wl1271 *wl, 412 struct wl12xx_vif *wlvif, 413 enum ieee80211_band band, 414 int channel) 415 { 416 struct wl12xx_cmd_role_start *cmd; 417 int ret; 418 419 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 420 if (!cmd) { 421 ret = -ENOMEM; 422 goto out; 423 } 424 425 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id); 426 427 cmd->role_id = wlvif->dev_role_id; 428 if (band == IEEE80211_BAND_5GHZ) 429 cmd->band = WLCORE_BAND_5GHZ; 430 cmd->channel = channel; 431 432 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) { 433 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid); 434 if (ret) 435 goto out_free; 436 } 437 cmd->device.hlid = wlvif->dev_hlid; 438 cmd->device.session = wl->session_ids[wlvif->dev_hlid]; 439 440 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d", 441 cmd->role_id, cmd->device.hlid, cmd->device.session); 442 443 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 444 if (ret < 0) { 445 wl1271_error("failed to initiate cmd role enable"); 446 goto err_hlid; 447 } 448 449 goto out_free; 450 451 err_hlid: 452 /* clear links on error */ 453 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 454 455 out_free: 456 kfree(cmd); 457 458 out: 459 return ret; 460 } 461 462 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, 463 struct wl12xx_vif *wlvif) 464 { 465 struct wl12xx_cmd_role_stop *cmd; 466 int ret; 467 468 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID)) 469 return -EINVAL; 470 471 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 472 if (!cmd) { 473 ret = -ENOMEM; 474 goto out; 475 } 476 477 wl1271_debug(DEBUG_CMD, "cmd role stop dev"); 478 479 cmd->role_id = wlvif->dev_role_id; 480 cmd->disc_type = DISCONNECT_IMMEDIATE; 481 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 482 483 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 484 if (ret < 0) { 485 wl1271_error("failed to initiate cmd role stop"); 486 goto out_free; 487 } 488 489 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 490 491 out_free: 492 kfree(cmd); 493 494 out: 495 return ret; 496 } 497 498 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 499 { 500 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 501 struct wl12xx_cmd_role_start *cmd; 502 u32 supported_rates; 503 int ret; 504 505 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 506 if (!cmd) { 507 ret = -ENOMEM; 508 goto out; 509 } 510 511 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id); 512 513 cmd->role_id = wlvif->role_id; 514 if (wlvif->band == IEEE80211_BAND_5GHZ) 515 cmd->band = WLCORE_BAND_5GHZ; 516 cmd->channel = wlvif->channel; 517 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 518 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int); 519 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY; 520 cmd->sta.ssid_len = wlvif->ssid_len; 521 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len); 522 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN); 523 524 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES | 525 wlcore_hw_sta_get_ap_rate_mask(wl, wlvif); 526 if (wlvif->p2p) 527 supported_rates &= ~CONF_TX_CCK_RATES; 528 529 cmd->sta.local_rates = cpu_to_le32(supported_rates); 530 531 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 532 533 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 534 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 535 if (ret) 536 goto out_free; 537 } 538 cmd->sta.hlid = wlvif->sta.hlid; 539 cmd->sta.session = wl->session_ids[wlvif->sta.hlid]; 540 /* 541 * We don't have the correct remote rates in this stage. The 542 * rates will be reconfigured later, after association, if the 543 * firmware supports ACX_PEER_CAP. Otherwise, there's nothing 544 * we can do, so use all supported_rates here. 545 */ 546 cmd->sta.remote_rates = cpu_to_le32(supported_rates); 547 548 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 549 "basic_rate_set: 0x%x, remote_rates: 0x%x", 550 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 551 wlvif->basic_rate_set, wlvif->rate_set); 552 553 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 554 if (ret < 0) { 555 wl1271_error("failed to initiate cmd role start sta"); 556 goto err_hlid; 557 } 558 559 wlvif->sta.role_chan_type = wlvif->channel_type; 560 goto out_free; 561 562 err_hlid: 563 /* clear links on error. */ 564 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 565 566 out_free: 567 kfree(cmd); 568 569 out: 570 return ret; 571 } 572 573 /* use this function to stop ibss as well */ 574 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 575 { 576 struct wl12xx_cmd_role_stop *cmd; 577 int ret; 578 579 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)) 580 return -EINVAL; 581 582 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 583 if (!cmd) { 584 ret = -ENOMEM; 585 goto out; 586 } 587 588 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id); 589 590 cmd->role_id = wlvif->role_id; 591 cmd->disc_type = DISCONNECT_IMMEDIATE; 592 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 593 594 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 595 if (ret < 0) { 596 wl1271_error("failed to initiate cmd role stop sta"); 597 goto out_free; 598 } 599 600 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 601 602 out_free: 603 kfree(cmd); 604 605 out: 606 return ret; 607 } 608 609 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 610 { 611 struct wl12xx_cmd_role_start *cmd; 612 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 613 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 614 u32 supported_rates; 615 int ret; 616 617 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id); 618 619 /* trying to use hidden SSID with an old hostapd version */ 620 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) { 621 wl1271_error("got a null SSID from beacon/bss"); 622 ret = -EINVAL; 623 goto out; 624 } 625 626 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 627 if (!cmd) { 628 ret = -ENOMEM; 629 goto out; 630 } 631 632 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid); 633 if (ret < 0) 634 goto out_free; 635 636 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid); 637 if (ret < 0) 638 goto out_free_global; 639 640 /* use the previous security seq, if this is a recovery/resume */ 641 wl->links[wlvif->ap.bcast_hlid].total_freed_pkts = 642 wlvif->total_freed_pkts; 643 644 cmd->role_id = wlvif->role_id; 645 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period); 646 cmd->ap.bss_index = WL1271_AP_BSS_INDEX; 647 cmd->ap.global_hlid = wlvif->ap.global_hlid; 648 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid; 649 cmd->ap.global_session_id = wl->session_ids[wlvif->ap.global_hlid]; 650 cmd->ap.bcast_session_id = wl->session_ids[wlvif->ap.bcast_hlid]; 651 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 652 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int); 653 cmd->ap.dtim_interval = bss_conf->dtim_period; 654 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP; 655 /* FIXME: Change when adding DFS */ 656 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */ 657 cmd->ap.wmm = wlvif->wmm_enabled; 658 cmd->channel = wlvif->channel; 659 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 660 661 if (!bss_conf->hidden_ssid) { 662 /* take the SSID from the beacon for backward compatibility */ 663 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC; 664 cmd->ap.ssid_len = wlvif->ssid_len; 665 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len); 666 } else { 667 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN; 668 cmd->ap.ssid_len = bss_conf->ssid_len; 669 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len); 670 } 671 672 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES | 673 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif); 674 if (wlvif->p2p) 675 supported_rates &= ~CONF_TX_CCK_RATES; 676 677 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x", 678 supported_rates); 679 680 cmd->ap.local_rates = cpu_to_le32(supported_rates); 681 682 switch (wlvif->band) { 683 case IEEE80211_BAND_2GHZ: 684 cmd->band = WLCORE_BAND_2_4GHZ; 685 break; 686 case IEEE80211_BAND_5GHZ: 687 cmd->band = WLCORE_BAND_5GHZ; 688 break; 689 default: 690 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band); 691 cmd->band = WLCORE_BAND_2_4GHZ; 692 break; 693 } 694 695 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 696 if (ret < 0) { 697 wl1271_error("failed to initiate cmd role start ap"); 698 goto out_free_bcast; 699 } 700 701 goto out_free; 702 703 out_free_bcast: 704 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 705 706 out_free_global: 707 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 708 709 out_free: 710 kfree(cmd); 711 712 out: 713 return ret; 714 } 715 716 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 717 { 718 struct wl12xx_cmd_role_stop *cmd; 719 int ret; 720 721 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 722 if (!cmd) { 723 ret = -ENOMEM; 724 goto out; 725 } 726 727 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id); 728 729 cmd->role_id = wlvif->role_id; 730 731 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 732 if (ret < 0) { 733 wl1271_error("failed to initiate cmd role stop ap"); 734 goto out_free; 735 } 736 737 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 738 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 739 740 out_free: 741 kfree(cmd); 742 743 out: 744 return ret; 745 } 746 747 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif) 748 { 749 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 750 struct wl12xx_cmd_role_start *cmd; 751 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 752 int ret; 753 754 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 755 if (!cmd) { 756 ret = -ENOMEM; 757 goto out; 758 } 759 760 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id); 761 762 cmd->role_id = wlvif->role_id; 763 if (wlvif->band == IEEE80211_BAND_5GHZ) 764 cmd->band = WLCORE_BAND_5GHZ; 765 cmd->channel = wlvif->channel; 766 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 767 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int); 768 cmd->ibss.dtim_interval = bss_conf->dtim_period; 769 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY; 770 cmd->ibss.ssid_len = wlvif->ssid_len; 771 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len); 772 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN); 773 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 774 775 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 776 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 777 if (ret) 778 goto out_free; 779 } 780 cmd->ibss.hlid = wlvif->sta.hlid; 781 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set); 782 783 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 784 "basic_rate_set: 0x%x, remote_rates: 0x%x", 785 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 786 wlvif->basic_rate_set, wlvif->rate_set); 787 788 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM", 789 vif->bss_conf.bssid); 790 791 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 792 if (ret < 0) { 793 wl1271_error("failed to initiate cmd role enable"); 794 goto err_hlid; 795 } 796 797 goto out_free; 798 799 err_hlid: 800 /* clear links on error. */ 801 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 802 803 out_free: 804 kfree(cmd); 805 806 out: 807 return ret; 808 } 809 810 811 /** 812 * send test command to firmware 813 * 814 * @wl: wl struct 815 * @buf: buffer containing the command, with all headers, must work with dma 816 * @len: length of the buffer 817 * @answer: is answer needed 818 */ 819 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer) 820 { 821 int ret; 822 size_t res_len = 0; 823 824 wl1271_debug(DEBUG_CMD, "cmd test"); 825 826 if (answer) 827 res_len = buf_len; 828 829 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len); 830 831 if (ret < 0) { 832 wl1271_warning("TEST command failed"); 833 return ret; 834 } 835 836 return ret; 837 } 838 EXPORT_SYMBOL_GPL(wl1271_cmd_test); 839 840 /** 841 * read acx from firmware 842 * 843 * @wl: wl struct 844 * @id: acx id 845 * @buf: buffer for the response, including all headers, must work with dma 846 * @len: length of buf 847 */ 848 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len) 849 { 850 struct acx_header *acx = buf; 851 int ret; 852 853 wl1271_debug(DEBUG_CMD, "cmd interrogate"); 854 855 acx->id = cpu_to_le16(id); 856 857 /* payload length, does not include any headers */ 858 acx->len = cpu_to_le16(len - sizeof(*acx)); 859 860 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len); 861 if (ret < 0) 862 wl1271_error("INTERROGATE command failed"); 863 864 return ret; 865 } 866 867 /** 868 * write acx value to firmware 869 * 870 * @wl: wl struct 871 * @id: acx id 872 * @buf: buffer containing acx, including all headers, must work with dma 873 * @len: length of buf 874 * @valid_rets: bitmap of valid cmd status codes (i.e. return values). 875 * return the cmd status on success. 876 */ 877 int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf, 878 size_t len, unsigned long valid_rets) 879 { 880 struct acx_header *acx = buf; 881 int ret; 882 883 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id); 884 885 acx->id = cpu_to_le16(id); 886 887 /* payload length, does not include any headers */ 888 acx->len = cpu_to_le16(len - sizeof(*acx)); 889 890 ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0, 891 valid_rets); 892 if (ret < 0) { 893 wl1271_warning("CONFIGURE command NOK"); 894 return ret; 895 } 896 897 return ret; 898 } 899 900 /* 901 * wrapper for wlcore_cmd_configure that accepts only success status. 902 * return 0 on success 903 */ 904 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len) 905 { 906 int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0); 907 908 if (ret < 0) 909 return ret; 910 return 0; 911 } 912 EXPORT_SYMBOL_GPL(wl1271_cmd_configure); 913 914 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable) 915 { 916 struct cmd_enabledisable_path *cmd; 917 int ret; 918 u16 cmd_rx, cmd_tx; 919 920 wl1271_debug(DEBUG_CMD, "cmd data path"); 921 922 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 923 if (!cmd) { 924 ret = -ENOMEM; 925 goto out; 926 } 927 928 /* the channel here is only used for calibration, so hardcoded to 1 */ 929 cmd->channel = 1; 930 931 if (enable) { 932 cmd_rx = CMD_ENABLE_RX; 933 cmd_tx = CMD_ENABLE_TX; 934 } else { 935 cmd_rx = CMD_DISABLE_RX; 936 cmd_tx = CMD_DISABLE_TX; 937 } 938 939 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0); 940 if (ret < 0) { 941 wl1271_error("rx %s cmd for channel %d failed", 942 enable ? "start" : "stop", cmd->channel); 943 goto out; 944 } 945 946 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d", 947 enable ? "start" : "stop", cmd->channel); 948 949 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0); 950 if (ret < 0) { 951 wl1271_error("tx %s cmd for channel %d failed", 952 enable ? "start" : "stop", cmd->channel); 953 goto out; 954 } 955 956 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d", 957 enable ? "start" : "stop", cmd->channel); 958 959 out: 960 kfree(cmd); 961 return ret; 962 } 963 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path); 964 965 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif, 966 u8 ps_mode, u16 auto_ps_timeout) 967 { 968 struct wl1271_cmd_ps_params *ps_params = NULL; 969 int ret = 0; 970 971 wl1271_debug(DEBUG_CMD, "cmd set ps mode"); 972 973 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL); 974 if (!ps_params) { 975 ret = -ENOMEM; 976 goto out; 977 } 978 979 ps_params->role_id = wlvif->role_id; 980 ps_params->ps_mode = ps_mode; 981 ps_params->auto_ps_timeout = auto_ps_timeout; 982 983 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params, 984 sizeof(*ps_params), 0); 985 if (ret < 0) { 986 wl1271_error("cmd set_ps_mode failed"); 987 goto out; 988 } 989 990 out: 991 kfree(ps_params); 992 return ret; 993 } 994 995 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id, 996 u16 template_id, void *buf, size_t buf_len, 997 int index, u32 rates) 998 { 999 struct wl1271_cmd_template_set *cmd; 1000 int ret = 0; 1001 1002 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)", 1003 template_id, role_id); 1004 1005 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE); 1006 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE); 1007 1008 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1009 if (!cmd) { 1010 ret = -ENOMEM; 1011 goto out; 1012 } 1013 1014 /* during initialization wlvif is NULL */ 1015 cmd->role_id = role_id; 1016 cmd->len = cpu_to_le16(buf_len); 1017 cmd->template_type = template_id; 1018 cmd->enabled_rates = cpu_to_le32(rates); 1019 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit; 1020 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit; 1021 cmd->index = index; 1022 1023 if (buf) 1024 memcpy(cmd->template_data, buf, buf_len); 1025 1026 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0); 1027 if (ret < 0) { 1028 wl1271_warning("cmd set_template failed: %d", ret); 1029 goto out_free; 1030 } 1031 1032 out_free: 1033 kfree(cmd); 1034 1035 out: 1036 return ret; 1037 } 1038 1039 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1040 { 1041 struct sk_buff *skb = NULL; 1042 int size; 1043 void *ptr; 1044 int ret = -ENOMEM; 1045 1046 1047 if (wlvif->bss_type == BSS_TYPE_IBSS) { 1048 size = sizeof(struct wl12xx_null_data_template); 1049 ptr = NULL; 1050 } else { 1051 skb = ieee80211_nullfunc_get(wl->hw, 1052 wl12xx_wlvif_to_vif(wlvif)); 1053 if (!skb) 1054 goto out; 1055 size = skb->len; 1056 ptr = skb->data; 1057 } 1058 1059 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1060 CMD_TEMPL_NULL_DATA, ptr, size, 0, 1061 wlvif->basic_rate); 1062 1063 out: 1064 dev_kfree_skb(skb); 1065 if (ret) 1066 wl1271_warning("cmd buld null data failed %d", ret); 1067 1068 return ret; 1069 1070 } 1071 1072 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, 1073 struct wl12xx_vif *wlvif) 1074 { 1075 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1076 struct sk_buff *skb = NULL; 1077 int ret = -ENOMEM; 1078 1079 skb = ieee80211_nullfunc_get(wl->hw, vif); 1080 if (!skb) 1081 goto out; 1082 1083 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV, 1084 skb->data, skb->len, 1085 wlvif->sta.klv_template_id, 1086 wlvif->basic_rate); 1087 1088 out: 1089 dev_kfree_skb(skb); 1090 if (ret) 1091 wl1271_warning("cmd build klv null data failed %d", ret); 1092 1093 return ret; 1094 1095 } 1096 1097 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1098 u16 aid) 1099 { 1100 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1101 struct sk_buff *skb; 1102 int ret = 0; 1103 1104 skb = ieee80211_pspoll_get(wl->hw, vif); 1105 if (!skb) 1106 goto out; 1107 1108 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1109 CMD_TEMPL_PS_POLL, skb->data, 1110 skb->len, 0, wlvif->basic_rate_set); 1111 1112 out: 1113 dev_kfree_skb(skb); 1114 return ret; 1115 } 1116 1117 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1118 u8 role_id, u8 band, 1119 const u8 *ssid, size_t ssid_len, 1120 const u8 *ie, size_t ie_len, bool sched_scan) 1121 { 1122 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1123 struct sk_buff *skb; 1124 int ret; 1125 u32 rate; 1126 u16 template_id_2_4 = wl->scan_templ_id_2_4; 1127 u16 template_id_5 = wl->scan_templ_id_5; 1128 1129 wl1271_debug(DEBUG_SCAN, "build probe request band %d", band); 1130 1131 skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len, 1132 ie_len); 1133 if (!skb) { 1134 ret = -ENOMEM; 1135 goto out; 1136 } 1137 if (ie_len) 1138 memcpy(skb_put(skb, ie_len), ie, ie_len); 1139 1140 if (sched_scan && 1141 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) { 1142 template_id_2_4 = wl->sched_scan_templ_id_2_4; 1143 template_id_5 = wl->sched_scan_templ_id_5; 1144 } 1145 1146 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]); 1147 if (band == IEEE80211_BAND_2GHZ) 1148 ret = wl1271_cmd_template_set(wl, role_id, 1149 template_id_2_4, 1150 skb->data, skb->len, 0, rate); 1151 else 1152 ret = wl1271_cmd_template_set(wl, role_id, 1153 template_id_5, 1154 skb->data, skb->len, 0, rate); 1155 1156 out: 1157 dev_kfree_skb(skb); 1158 return ret; 1159 } 1160 EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req); 1161 1162 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl, 1163 struct wl12xx_vif *wlvif, 1164 struct sk_buff *skb) 1165 { 1166 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1167 int ret; 1168 u32 rate; 1169 1170 if (!skb) 1171 skb = ieee80211_ap_probereq_get(wl->hw, vif); 1172 if (!skb) 1173 goto out; 1174 1175 wl1271_debug(DEBUG_SCAN, "set ap probe request template"); 1176 1177 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]); 1178 if (wlvif->band == IEEE80211_BAND_2GHZ) 1179 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1180 CMD_TEMPL_CFG_PROBE_REQ_2_4, 1181 skb->data, skb->len, 0, rate); 1182 else 1183 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1184 CMD_TEMPL_CFG_PROBE_REQ_5, 1185 skb->data, skb->len, 0, rate); 1186 1187 if (ret < 0) 1188 wl1271_error("Unable to set ap probe request template."); 1189 1190 out: 1191 return skb; 1192 } 1193 1194 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1195 { 1196 int ret, extra = 0; 1197 u16 fc; 1198 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1199 struct sk_buff *skb; 1200 struct wl12xx_arp_rsp_template *tmpl; 1201 struct ieee80211_hdr_3addr *hdr; 1202 struct arphdr *arp_hdr; 1203 1204 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) + 1205 WL1271_EXTRA_SPACE_MAX); 1206 if (!skb) { 1207 wl1271_error("failed to allocate buffer for arp rsp template"); 1208 return -ENOMEM; 1209 } 1210 1211 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX); 1212 1213 tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl)); 1214 memset(tmpl, 0, sizeof(*tmpl)); 1215 1216 /* llc layer */ 1217 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header)); 1218 tmpl->llc_type = cpu_to_be16(ETH_P_ARP); 1219 1220 /* arp header */ 1221 arp_hdr = &tmpl->arp_hdr; 1222 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER); 1223 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP); 1224 arp_hdr->ar_hln = ETH_ALEN; 1225 arp_hdr->ar_pln = 4; 1226 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY); 1227 1228 /* arp payload */ 1229 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN); 1230 tmpl->sender_ip = wlvif->ip_addr; 1231 1232 /* encryption space */ 1233 switch (wlvif->encryption_type) { 1234 case KEY_TKIP: 1235 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) 1236 extra = WL1271_EXTRA_SPACE_TKIP; 1237 break; 1238 case KEY_AES: 1239 extra = WL1271_EXTRA_SPACE_AES; 1240 break; 1241 case KEY_NONE: 1242 case KEY_WEP: 1243 case KEY_GEM: 1244 extra = 0; 1245 break; 1246 default: 1247 wl1271_warning("Unknown encryption type: %d", 1248 wlvif->encryption_type); 1249 ret = -EINVAL; 1250 goto out; 1251 } 1252 1253 if (extra) { 1254 u8 *space = skb_push(skb, extra); 1255 memset(space, 0, extra); 1256 } 1257 1258 /* QoS header - BE */ 1259 if (wlvif->sta.qos) 1260 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16)); 1261 1262 /* mac80211 header */ 1263 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr)); 1264 memset(hdr, 0, sizeof(*hdr)); 1265 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS; 1266 if (wlvif->sta.qos) 1267 fc |= IEEE80211_STYPE_QOS_DATA; 1268 else 1269 fc |= IEEE80211_STYPE_DATA; 1270 if (wlvif->encryption_type != KEY_NONE) 1271 fc |= IEEE80211_FCTL_PROTECTED; 1272 1273 hdr->frame_control = cpu_to_le16(fc); 1274 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN); 1275 memcpy(hdr->addr2, vif->addr, ETH_ALEN); 1276 memset(hdr->addr3, 0xff, ETH_ALEN); 1277 1278 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP, 1279 skb->data, skb->len, 0, 1280 wlvif->basic_rate); 1281 out: 1282 dev_kfree_skb(skb); 1283 return ret; 1284 } 1285 1286 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif) 1287 { 1288 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 1289 struct ieee80211_qos_hdr template; 1290 1291 memset(&template, 0, sizeof(template)); 1292 1293 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN); 1294 memcpy(template.addr2, vif->addr, ETH_ALEN); 1295 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN); 1296 1297 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 1298 IEEE80211_STYPE_QOS_NULLFUNC | 1299 IEEE80211_FCTL_TODS); 1300 1301 /* FIXME: not sure what priority to use here */ 1302 template.qos_ctrl = cpu_to_le16(0); 1303 1304 return wl1271_cmd_template_set(wl, wlvif->role_id, 1305 CMD_TEMPL_QOS_NULL_DATA, &template, 1306 sizeof(template), 0, 1307 wlvif->basic_rate); 1308 } 1309 1310 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid) 1311 { 1312 struct wl1271_cmd_set_keys *cmd; 1313 int ret = 0; 1314 1315 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id); 1316 1317 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1318 if (!cmd) { 1319 ret = -ENOMEM; 1320 goto out; 1321 } 1322 1323 cmd->hlid = hlid; 1324 cmd->key_id = id; 1325 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1326 cmd->key_action = cpu_to_le16(KEY_SET_ID); 1327 cmd->key_type = KEY_WEP; 1328 1329 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1330 if (ret < 0) { 1331 wl1271_warning("cmd set_default_wep_key failed: %d", ret); 1332 goto out; 1333 } 1334 1335 out: 1336 kfree(cmd); 1337 1338 return ret; 1339 } 1340 1341 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1342 u16 action, u8 id, u8 key_type, 1343 u8 key_size, const u8 *key, const u8 *addr, 1344 u32 tx_seq_32, u16 tx_seq_16) 1345 { 1346 struct wl1271_cmd_set_keys *cmd; 1347 int ret = 0; 1348 1349 /* hlid might have already been deleted */ 1350 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) 1351 return 0; 1352 1353 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1354 if (!cmd) { 1355 ret = -ENOMEM; 1356 goto out; 1357 } 1358 1359 cmd->hlid = wlvif->sta.hlid; 1360 1361 if (key_type == KEY_WEP) 1362 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1363 else if (is_broadcast_ether_addr(addr)) 1364 cmd->lid_key_type = BROADCAST_LID_TYPE; 1365 else 1366 cmd->lid_key_type = UNICAST_LID_TYPE; 1367 1368 cmd->key_action = cpu_to_le16(action); 1369 cmd->key_size = key_size; 1370 cmd->key_type = key_type; 1371 1372 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1373 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1374 1375 cmd->key_id = id; 1376 1377 if (key_type == KEY_TKIP) { 1378 /* 1379 * We get the key in the following form: 1380 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1381 * but the target is expecting: 1382 * TKIP - RX MIC - TX MIC 1383 */ 1384 memcpy(cmd->key, key, 16); 1385 memcpy(cmd->key + 16, key + 24, 8); 1386 memcpy(cmd->key + 24, key + 16, 8); 1387 1388 } else { 1389 memcpy(cmd->key, key, key_size); 1390 } 1391 1392 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd)); 1393 1394 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1395 if (ret < 0) { 1396 wl1271_warning("could not set keys"); 1397 goto out; 1398 } 1399 1400 out: 1401 kfree(cmd); 1402 1403 return ret; 1404 } 1405 1406 /* 1407 * TODO: merge with sta/ibss into 1 set_key function. 1408 * note there are slight diffs 1409 */ 1410 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1411 u16 action, u8 id, u8 key_type, 1412 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32, 1413 u16 tx_seq_16) 1414 { 1415 struct wl1271_cmd_set_keys *cmd; 1416 int ret = 0; 1417 u8 lid_type; 1418 1419 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1420 if (!cmd) 1421 return -ENOMEM; 1422 1423 if (hlid == wlvif->ap.bcast_hlid) { 1424 if (key_type == KEY_WEP) 1425 lid_type = WEP_DEFAULT_LID_TYPE; 1426 else 1427 lid_type = BROADCAST_LID_TYPE; 1428 } else { 1429 lid_type = UNICAST_LID_TYPE; 1430 } 1431 1432 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d" 1433 " hlid: %d", (int)action, (int)id, (int)lid_type, 1434 (int)key_type, (int)hlid); 1435 1436 cmd->lid_key_type = lid_type; 1437 cmd->hlid = hlid; 1438 cmd->key_action = cpu_to_le16(action); 1439 cmd->key_size = key_size; 1440 cmd->key_type = key_type; 1441 cmd->key_id = id; 1442 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1443 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1444 1445 if (key_type == KEY_TKIP) { 1446 /* 1447 * We get the key in the following form: 1448 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1449 * but the target is expecting: 1450 * TKIP - RX MIC - TX MIC 1451 */ 1452 memcpy(cmd->key, key, 16); 1453 memcpy(cmd->key + 16, key + 24, 8); 1454 memcpy(cmd->key + 24, key + 16, 8); 1455 } else { 1456 memcpy(cmd->key, key, key_size); 1457 } 1458 1459 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd)); 1460 1461 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1462 if (ret < 0) { 1463 wl1271_warning("could not set ap keys"); 1464 goto out; 1465 } 1466 1467 out: 1468 kfree(cmd); 1469 return ret; 1470 } 1471 1472 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1473 u8 hlid) 1474 { 1475 struct wl12xx_cmd_set_peer_state *cmd; 1476 int ret = 0; 1477 1478 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid); 1479 1480 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1481 if (!cmd) { 1482 ret = -ENOMEM; 1483 goto out; 1484 } 1485 1486 cmd->hlid = hlid; 1487 cmd->state = WL1271_CMD_STA_STATE_CONNECTED; 1488 1489 /* wmm param is valid only for station role */ 1490 if (wlvif->bss_type == BSS_TYPE_STA_BSS) 1491 cmd->wmm = wlvif->wmm_enabled; 1492 1493 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0); 1494 if (ret < 0) { 1495 wl1271_error("failed to send set peer state command"); 1496 goto out_free; 1497 } 1498 1499 out_free: 1500 kfree(cmd); 1501 1502 out: 1503 return ret; 1504 } 1505 1506 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1507 struct ieee80211_sta *sta, u8 hlid) 1508 { 1509 struct wl12xx_cmd_add_peer *cmd; 1510 int i, ret; 1511 u32 sta_rates; 1512 1513 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid); 1514 1515 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1516 if (!cmd) { 1517 ret = -ENOMEM; 1518 goto out; 1519 } 1520 1521 memcpy(cmd->addr, sta->addr, ETH_ALEN); 1522 cmd->bss_index = WL1271_AP_BSS_INDEX; 1523 cmd->aid = sta->aid; 1524 cmd->hlid = hlid; 1525 cmd->sp_len = sta->max_sp; 1526 cmd->wmm = sta->wme ? 1 : 0; 1527 cmd->session_id = wl->session_ids[hlid]; 1528 1529 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++) 1530 if (sta->wme && (sta->uapsd_queues & BIT(i))) 1531 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1532 WL1271_PSD_UPSD_TRIGGER; 1533 else 1534 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1535 WL1271_PSD_LEGACY; 1536 1537 1538 sta_rates = sta->supp_rates[wlvif->band]; 1539 if (sta->ht_cap.ht_supported) 1540 sta_rates |= 1541 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) | 1542 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET); 1543 1544 cmd->supported_rates = 1545 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates, 1546 wlvif->band)); 1547 1548 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x", 1549 cmd->supported_rates, sta->uapsd_queues); 1550 1551 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0); 1552 if (ret < 0) { 1553 wl1271_error("failed to initiate cmd add peer"); 1554 goto out_free; 1555 } 1556 1557 out_free: 1558 kfree(cmd); 1559 1560 out: 1561 return ret; 1562 } 1563 1564 int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid) 1565 { 1566 struct wl12xx_cmd_remove_peer *cmd; 1567 int ret; 1568 bool timeout = false; 1569 1570 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid); 1571 1572 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1573 if (!cmd) { 1574 ret = -ENOMEM; 1575 goto out; 1576 } 1577 1578 cmd->hlid = hlid; 1579 /* We never send a deauth, mac80211 is in charge of this */ 1580 cmd->reason_opcode = 0; 1581 cmd->send_deauth_flag = 0; 1582 1583 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0); 1584 if (ret < 0) { 1585 wl1271_error("failed to initiate cmd remove peer"); 1586 goto out_free; 1587 } 1588 1589 ret = wl->ops->wait_for_event(wl, 1590 WLCORE_EVENT_PEER_REMOVE_COMPLETE, 1591 &timeout); 1592 1593 /* 1594 * We are ok with a timeout here. The event is sometimes not sent 1595 * due to a firmware bug. In case of another error (like SDIO timeout) 1596 * queue a recovery. 1597 */ 1598 if (ret) 1599 wl12xx_queue_recovery_work(wl); 1600 1601 out_free: 1602 kfree(cmd); 1603 1604 out: 1605 return ret; 1606 } 1607 1608 static int wlcore_get_reg_conf_ch_idx(enum ieee80211_band band, u16 ch) 1609 { 1610 /* 1611 * map the given band/channel to the respective predefined 1612 * bit expected by the fw 1613 */ 1614 switch (band) { 1615 case IEEE80211_BAND_2GHZ: 1616 /* channels 1..14 are mapped to 0..13 */ 1617 if (ch >= 1 && ch <= 14) 1618 return ch - 1; 1619 break; 1620 case IEEE80211_BAND_5GHZ: 1621 switch (ch) { 1622 case 8 ... 16: 1623 /* channels 8,12,16 are mapped to 18,19,20 */ 1624 return 18 + (ch-8)/4; 1625 case 34 ... 48: 1626 /* channels 34,36..48 are mapped to 21..28 */ 1627 return 21 + (ch-34)/2; 1628 case 52 ... 64: 1629 /* channels 52,56..64 are mapped to 29..32 */ 1630 return 29 + (ch-52)/4; 1631 case 100 ... 140: 1632 /* channels 100,104..140 are mapped to 33..43 */ 1633 return 33 + (ch-100)/4; 1634 case 149 ... 165: 1635 /* channels 149,153..165 are mapped to 44..48 */ 1636 return 44 + (ch-149)/4; 1637 default: 1638 break; 1639 } 1640 break; 1641 default: 1642 break; 1643 } 1644 1645 wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch); 1646 return -1; 1647 } 1648 1649 void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel, 1650 enum ieee80211_band band) 1651 { 1652 int ch_bit_idx = 0; 1653 1654 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF)) 1655 return; 1656 1657 ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel); 1658 1659 if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS) 1660 set_bit(ch_bit_idx, (long *)wl->reg_ch_conf_pending); 1661 } 1662 1663 int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl) 1664 { 1665 struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL; 1666 int ret = 0, i, b, ch_bit_idx; 1667 struct ieee80211_channel *channel; 1668 u32 tmp_ch_bitmap[2]; 1669 u16 ch; 1670 struct wiphy *wiphy = wl->hw->wiphy; 1671 struct ieee80211_supported_band *band; 1672 bool timeout = false; 1673 1674 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF)) 1675 return 0; 1676 1677 wl1271_debug(DEBUG_CMD, "cmd reg domain config"); 1678 1679 memset(tmp_ch_bitmap, 0, sizeof(tmp_ch_bitmap)); 1680 1681 for (b = IEEE80211_BAND_2GHZ; b <= IEEE80211_BAND_5GHZ; b++) { 1682 band = wiphy->bands[b]; 1683 for (i = 0; i < band->n_channels; i++) { 1684 channel = &band->channels[i]; 1685 ch = channel->hw_value; 1686 1687 if (channel->flags & (IEEE80211_CHAN_DISABLED | 1688 IEEE80211_CHAN_RADAR | 1689 IEEE80211_CHAN_PASSIVE_SCAN)) 1690 continue; 1691 1692 ch_bit_idx = wlcore_get_reg_conf_ch_idx(b, ch); 1693 if (ch_bit_idx < 0) 1694 continue; 1695 1696 set_bit(ch_bit_idx, (long *)tmp_ch_bitmap); 1697 } 1698 } 1699 1700 tmp_ch_bitmap[0] |= wl->reg_ch_conf_pending[0]; 1701 tmp_ch_bitmap[1] |= wl->reg_ch_conf_pending[1]; 1702 1703 if (!memcmp(tmp_ch_bitmap, wl->reg_ch_conf_last, sizeof(tmp_ch_bitmap))) 1704 goto out; 1705 1706 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1707 if (!cmd) { 1708 ret = -ENOMEM; 1709 goto out; 1710 } 1711 1712 cmd->ch_bit_map1 = cpu_to_le32(tmp_ch_bitmap[0]); 1713 cmd->ch_bit_map2 = cpu_to_le32(tmp_ch_bitmap[1]); 1714 1715 wl1271_debug(DEBUG_CMD, 1716 "cmd reg domain bitmap1: 0x%08x, bitmap2: 0x%08x", 1717 cmd->ch_bit_map1, cmd->ch_bit_map2); 1718 1719 ret = wl1271_cmd_send(wl, CMD_DFS_CHANNEL_CONFIG, cmd, sizeof(*cmd), 0); 1720 if (ret < 0) { 1721 wl1271_error("failed to send reg domain dfs config"); 1722 goto out; 1723 } 1724 1725 ret = wl->ops->wait_for_event(wl, 1726 WLCORE_EVENT_DFS_CONFIG_COMPLETE, 1727 &timeout); 1728 if (ret < 0 || timeout) { 1729 wl1271_error("reg domain conf %serror", 1730 timeout ? "completion " : ""); 1731 ret = timeout ? -ETIMEDOUT : ret; 1732 goto out; 1733 } 1734 1735 memcpy(wl->reg_ch_conf_last, tmp_ch_bitmap, sizeof(tmp_ch_bitmap)); 1736 memset(wl->reg_ch_conf_pending, 0, sizeof(wl->reg_ch_conf_pending)); 1737 1738 out: 1739 kfree(cmd); 1740 return ret; 1741 } 1742 1743 int wl12xx_cmd_config_fwlog(struct wl1271 *wl) 1744 { 1745 struct wl12xx_cmd_config_fwlog *cmd; 1746 int ret = 0; 1747 1748 wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); 1749 1750 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1751 if (!cmd) { 1752 ret = -ENOMEM; 1753 goto out; 1754 } 1755 1756 cmd->logger_mode = wl->conf.fwlog.mode; 1757 cmd->log_severity = wl->conf.fwlog.severity; 1758 cmd->timestamp = wl->conf.fwlog.timestamp; 1759 cmd->output = wl->conf.fwlog.output; 1760 cmd->threshold = wl->conf.fwlog.threshold; 1761 1762 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); 1763 if (ret < 0) { 1764 wl1271_error("failed to send config firmware logger command"); 1765 goto out_free; 1766 } 1767 1768 out_free: 1769 kfree(cmd); 1770 1771 out: 1772 return ret; 1773 } 1774 1775 int wl12xx_cmd_start_fwlog(struct wl1271 *wl) 1776 { 1777 struct wl12xx_cmd_start_fwlog *cmd; 1778 int ret = 0; 1779 1780 wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); 1781 1782 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1783 if (!cmd) { 1784 ret = -ENOMEM; 1785 goto out; 1786 } 1787 1788 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); 1789 if (ret < 0) { 1790 wl1271_error("failed to send start firmware logger command"); 1791 goto out_free; 1792 } 1793 1794 out_free: 1795 kfree(cmd); 1796 1797 out: 1798 return ret; 1799 } 1800 1801 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) 1802 { 1803 struct wl12xx_cmd_stop_fwlog *cmd; 1804 int ret = 0; 1805 1806 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); 1807 1808 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1809 if (!cmd) { 1810 ret = -ENOMEM; 1811 goto out; 1812 } 1813 1814 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); 1815 if (ret < 0) { 1816 wl1271_error("failed to send stop firmware logger command"); 1817 goto out_free; 1818 } 1819 1820 out_free: 1821 kfree(cmd); 1822 1823 out: 1824 return ret; 1825 } 1826 1827 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1828 u8 role_id, enum ieee80211_band band, u8 channel) 1829 { 1830 struct wl12xx_cmd_roc *cmd; 1831 int ret = 0; 1832 1833 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id); 1834 1835 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID)) 1836 return -EINVAL; 1837 1838 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1839 if (!cmd) { 1840 ret = -ENOMEM; 1841 goto out; 1842 } 1843 1844 cmd->role_id = role_id; 1845 cmd->channel = channel; 1846 switch (band) { 1847 case IEEE80211_BAND_2GHZ: 1848 cmd->band = WLCORE_BAND_2_4GHZ; 1849 break; 1850 case IEEE80211_BAND_5GHZ: 1851 cmd->band = WLCORE_BAND_5GHZ; 1852 break; 1853 default: 1854 wl1271_error("roc - unknown band: %d", (int)wlvif->band); 1855 ret = -EINVAL; 1856 goto out_free; 1857 } 1858 1859 1860 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0); 1861 if (ret < 0) { 1862 wl1271_error("failed to send ROC command"); 1863 goto out_free; 1864 } 1865 1866 out_free: 1867 kfree(cmd); 1868 1869 out: 1870 return ret; 1871 } 1872 1873 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id) 1874 { 1875 struct wl12xx_cmd_croc *cmd; 1876 int ret = 0; 1877 1878 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id); 1879 1880 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1881 if (!cmd) { 1882 ret = -ENOMEM; 1883 goto out; 1884 } 1885 cmd->role_id = role_id; 1886 1887 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd, 1888 sizeof(*cmd), 0); 1889 if (ret < 0) { 1890 wl1271_error("failed to send ROC command"); 1891 goto out_free; 1892 } 1893 1894 out_free: 1895 kfree(cmd); 1896 1897 out: 1898 return ret; 1899 } 1900 1901 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id, 1902 enum ieee80211_band band, u8 channel) 1903 { 1904 int ret = 0; 1905 1906 if (WARN_ON(test_bit(role_id, wl->roc_map))) 1907 return 0; 1908 1909 ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel); 1910 if (ret < 0) 1911 goto out; 1912 1913 __set_bit(role_id, wl->roc_map); 1914 out: 1915 return ret; 1916 } 1917 1918 int wl12xx_croc(struct wl1271 *wl, u8 role_id) 1919 { 1920 int ret = 0; 1921 1922 if (WARN_ON(!test_bit(role_id, wl->roc_map))) 1923 return 0; 1924 1925 ret = wl12xx_cmd_croc(wl, role_id); 1926 if (ret < 0) 1927 goto out; 1928 1929 __clear_bit(role_id, wl->roc_map); 1930 1931 /* 1932 * Rearm the tx watchdog when removing the last ROC. This prevents 1933 * recoveries due to just finished ROCs - when Tx hasn't yet had 1934 * a chance to get out. 1935 */ 1936 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) 1937 wl12xx_rearm_tx_watchdog_locked(wl); 1938 out: 1939 return ret; 1940 } 1941 1942 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1943 { 1944 struct wl12xx_cmd_stop_channel_switch *cmd; 1945 int ret; 1946 1947 wl1271_debug(DEBUG_ACX, "cmd stop channel switch"); 1948 1949 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1950 if (!cmd) { 1951 ret = -ENOMEM; 1952 goto out; 1953 } 1954 1955 cmd->role_id = wlvif->role_id; 1956 1957 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0); 1958 if (ret < 0) { 1959 wl1271_error("failed to stop channel switch command"); 1960 goto out_free; 1961 } 1962 1963 out_free: 1964 kfree(cmd); 1965 1966 out: 1967 return ret; 1968 } 1969 1970 /* start dev role and roc on its channel */ 1971 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1972 enum ieee80211_band band, int channel) 1973 { 1974 int ret; 1975 1976 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1977 wlvif->bss_type == BSS_TYPE_IBSS))) 1978 return -EINVAL; 1979 1980 ret = wl12xx_cmd_role_enable(wl, 1981 wl12xx_wlvif_to_vif(wlvif)->addr, 1982 WL1271_ROLE_DEVICE, 1983 &wlvif->dev_role_id); 1984 if (ret < 0) 1985 goto out; 1986 1987 ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel); 1988 if (ret < 0) 1989 goto out_disable; 1990 1991 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel); 1992 if (ret < 0) 1993 goto out_stop; 1994 1995 return 0; 1996 1997 out_stop: 1998 wl12xx_cmd_role_stop_dev(wl, wlvif); 1999 out_disable: 2000 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 2001 out: 2002 return ret; 2003 } 2004 2005 /* croc dev hlid, and stop the role */ 2006 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 2007 { 2008 int ret; 2009 2010 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 2011 wlvif->bss_type == BSS_TYPE_IBSS))) 2012 return -EINVAL; 2013 2014 /* flush all pending packets */ 2015 ret = wlcore_tx_work_locked(wl); 2016 if (ret < 0) 2017 goto out; 2018 2019 if (test_bit(wlvif->dev_role_id, wl->roc_map)) { 2020 ret = wl12xx_croc(wl, wlvif->dev_role_id); 2021 if (ret < 0) 2022 goto out; 2023 } 2024 2025 ret = wl12xx_cmd_role_stop_dev(wl, wlvif); 2026 if (ret < 0) 2027 goto out; 2028 2029 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 2030 if (ret < 0) 2031 goto out; 2032 2033 out: 2034 return ret; 2035 } 2036