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/pm_runtime.h> 27 #include <linux/spi/spi.h> 28 #include <linux/etherdevice.h> 29 #include <linux/ieee80211.h> 30 #include <linux/slab.h> 31 32 #include "wlcore.h" 33 #include "debug.h" 34 #include "io.h" 35 #include "acx.h" 36 #include "wl12xx_80211.h" 37 #include "cmd.h" 38 #include "event.h" 39 #include "tx.h" 40 #include "hw_ops.h" 41 42 #define WL1271_CMD_FAST_POLL_COUNT 50 43 #define WL1271_WAIT_EVENT_FAST_POLL_COUNT 20 44 45 /* 46 * send command to firmware 47 * 48 * @wl: wl struct 49 * @id: command id 50 * @buf: buffer containing the command, must work with dma 51 * @len: length of the buffer 52 * return the cmd status code on success. 53 */ 54 static int __wlcore_cmd_send(struct wl1271 *wl, u16 id, void *buf, 55 size_t len, size_t res_len) 56 { 57 struct wl1271_cmd_header *cmd; 58 unsigned long timeout; 59 u32 intr; 60 int ret; 61 u16 status; 62 u16 poll_count = 0; 63 64 if (unlikely(wl->state == WLCORE_STATE_RESTARTING && 65 id != CMD_STOP_FWLOGGER)) 66 return -EIO; 67 68 if (WARN_ON_ONCE(len < sizeof(*cmd))) 69 return -EIO; 70 71 cmd = buf; 72 cmd->id = cpu_to_le16(id); 73 cmd->status = 0; 74 75 WARN_ON(len % 4 != 0); 76 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags)); 77 78 ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false); 79 if (ret < 0) 80 return ret; 81 82 /* 83 * TODO: we just need this because one bit is in a different 84 * place. Is there any better way? 85 */ 86 ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len); 87 if (ret < 0) 88 return ret; 89 90 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT); 91 92 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); 93 if (ret < 0) 94 return ret; 95 96 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) { 97 if (time_after(jiffies, timeout)) { 98 wl1271_error("command complete timeout"); 99 return -ETIMEDOUT; 100 } 101 102 poll_count++; 103 if (poll_count < WL1271_CMD_FAST_POLL_COUNT) 104 udelay(10); 105 else 106 msleep(1); 107 108 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); 109 if (ret < 0) 110 return ret; 111 } 112 113 /* read back the status code of the command */ 114 if (res_len == 0) 115 res_len = sizeof(struct wl1271_cmd_header); 116 117 ret = wlcore_read(wl, wl->cmd_box_addr, cmd, res_len, false); 118 if (ret < 0) 119 return ret; 120 121 status = le16_to_cpu(cmd->status); 122 123 ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK, 124 WL1271_ACX_INTR_CMD_COMPLETE); 125 if (ret < 0) 126 return ret; 127 128 return status; 129 } 130 131 /* 132 * send command to fw and return cmd status on success 133 * valid_rets contains a bitmap of allowed error codes 134 */ 135 static int wlcore_cmd_send_failsafe(struct wl1271 *wl, u16 id, void *buf, 136 size_t len, size_t res_len, 137 unsigned long valid_rets) 138 { 139 int ret = __wlcore_cmd_send(wl, id, buf, len, res_len); 140 141 if (ret < 0) 142 goto fail; 143 144 /* success is always a valid status */ 145 valid_rets |= BIT(CMD_STATUS_SUCCESS); 146 147 if (ret >= MAX_COMMAND_STATUS || 148 !test_bit(ret, &valid_rets)) { 149 wl1271_error("command execute failure %d", ret); 150 ret = -EIO; 151 goto fail; 152 } 153 return ret; 154 fail: 155 wl12xx_queue_recovery_work(wl); 156 return ret; 157 } 158 159 /* 160 * wrapper for wlcore_cmd_send that accept only CMD_STATUS_SUCCESS 161 * return 0 on success. 162 */ 163 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len, 164 size_t res_len) 165 { 166 int ret = wlcore_cmd_send_failsafe(wl, id, buf, len, res_len, 0); 167 168 if (ret < 0) 169 return ret; 170 return 0; 171 } 172 EXPORT_SYMBOL_GPL(wl1271_cmd_send); 173 174 /* 175 * Poll the mailbox event field until any of the bits in the mask is set or a 176 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs) 177 */ 178 int wlcore_cmd_wait_for_event_or_timeout(struct wl1271 *wl, 179 u32 mask, bool *timeout) 180 { 181 u32 *events_vector; 182 u32 event; 183 unsigned long timeout_time; 184 u16 poll_count = 0; 185 int ret = 0; 186 187 *timeout = false; 188 189 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA); 190 if (!events_vector) 191 return -ENOMEM; 192 193 timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT); 194 195 ret = pm_runtime_get_sync(wl->dev); 196 if (ret < 0) { 197 pm_runtime_put_noidle(wl->dev); 198 199 return ret; 200 } 201 202 do { 203 if (time_after(jiffies, timeout_time)) { 204 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d", 205 (int)mask); 206 *timeout = true; 207 goto out; 208 } 209 210 poll_count++; 211 if (poll_count < WL1271_WAIT_EVENT_FAST_POLL_COUNT) 212 usleep_range(50, 51); 213 else 214 usleep_range(1000, 5000); 215 216 /* read from both event fields */ 217 ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector, 218 sizeof(*events_vector), false); 219 if (ret < 0) 220 goto out; 221 222 event = *events_vector & mask; 223 224 ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector, 225 sizeof(*events_vector), false); 226 if (ret < 0) 227 goto out; 228 229 event |= *events_vector & mask; 230 } while (!event); 231 232 out: 233 pm_runtime_put(wl->dev); 234 kfree(events_vector); 235 return ret; 236 } 237 EXPORT_SYMBOL_GPL(wlcore_cmd_wait_for_event_or_timeout); 238 239 int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type, 240 u8 *role_id) 241 { 242 struct wl12xx_cmd_role_enable *cmd; 243 int ret; 244 245 wl1271_debug(DEBUG_CMD, "cmd role enable"); 246 247 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID)) 248 return -EBUSY; 249 250 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 251 if (!cmd) { 252 ret = -ENOMEM; 253 goto out; 254 } 255 256 /* get role id */ 257 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES); 258 if (cmd->role_id >= WL12XX_MAX_ROLES) { 259 ret = -EBUSY; 260 goto out_free; 261 } 262 263 memcpy(cmd->mac_address, addr, ETH_ALEN); 264 cmd->role_type = role_type; 265 266 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0); 267 if (ret < 0) { 268 wl1271_error("failed to initiate cmd role enable"); 269 goto out_free; 270 } 271 272 __set_bit(cmd->role_id, wl->roles_map); 273 *role_id = cmd->role_id; 274 275 out_free: 276 kfree(cmd); 277 278 out: 279 return ret; 280 } 281 282 int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id) 283 { 284 struct wl12xx_cmd_role_disable *cmd; 285 int ret; 286 287 wl1271_debug(DEBUG_CMD, "cmd role disable"); 288 289 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID)) 290 return -ENOENT; 291 292 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 293 if (!cmd) { 294 ret = -ENOMEM; 295 goto out; 296 } 297 cmd->role_id = *role_id; 298 299 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0); 300 if (ret < 0) { 301 wl1271_error("failed to initiate cmd role disable"); 302 goto out_free; 303 } 304 305 __clear_bit(*role_id, wl->roles_map); 306 *role_id = WL12XX_INVALID_ROLE_ID; 307 308 out_free: 309 kfree(cmd); 310 311 out: 312 return ret; 313 } 314 315 static int wlcore_get_new_session_id(struct wl1271 *wl, u8 hlid) 316 { 317 if (wl->session_ids[hlid] >= SESSION_COUNTER_MAX) 318 wl->session_ids[hlid] = 0; 319 320 wl->session_ids[hlid]++; 321 322 return wl->session_ids[hlid]; 323 } 324 325 int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 326 { 327 unsigned long flags; 328 u8 link = find_first_zero_bit(wl->links_map, wl->num_links); 329 if (link >= wl->num_links) 330 return -EBUSY; 331 332 wl->session_ids[link] = wlcore_get_new_session_id(wl, link); 333 334 /* these bits are used by op_tx */ 335 spin_lock_irqsave(&wl->wl_lock, flags); 336 __set_bit(link, wl->links_map); 337 __set_bit(link, wlvif->links_map); 338 spin_unlock_irqrestore(&wl->wl_lock, flags); 339 340 /* 341 * take the last "freed packets" value from the current FW status. 342 * on recovery, we might not have fw_status yet, and 343 * tx_lnk_free_pkts will be NULL. check for it. 344 */ 345 if (wl->fw_status->counters.tx_lnk_free_pkts) 346 wl->links[link].prev_freed_pkts = 347 wl->fw_status->counters.tx_lnk_free_pkts[link]; 348 wl->links[link].wlvif = wlvif; 349 350 /* 351 * Take saved value for total freed packets from wlvif, in case this is 352 * recovery/resume 353 */ 354 if (wlvif->bss_type != BSS_TYPE_AP_BSS) 355 wl->links[link].total_freed_pkts = wlvif->total_freed_pkts; 356 357 *hlid = link; 358 359 wl->active_link_count++; 360 return 0; 361 } 362 363 void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 364 { 365 unsigned long flags; 366 367 if (*hlid == WL12XX_INVALID_LINK_ID) 368 return; 369 370 /* these bits are used by op_tx */ 371 spin_lock_irqsave(&wl->wl_lock, flags); 372 __clear_bit(*hlid, wl->links_map); 373 __clear_bit(*hlid, wlvif->links_map); 374 spin_unlock_irqrestore(&wl->wl_lock, flags); 375 376 wl->links[*hlid].allocated_pkts = 0; 377 wl->links[*hlid].prev_freed_pkts = 0; 378 wl->links[*hlid].ba_bitmap = 0; 379 eth_zero_addr(wl->links[*hlid].addr); 380 381 /* 382 * At this point op_tx() will not add more packets to the queues. We 383 * can purge them. 384 */ 385 wl1271_tx_reset_link_queues(wl, *hlid); 386 wl->links[*hlid].wlvif = NULL; 387 388 if (wlvif->bss_type == BSS_TYPE_AP_BSS && 389 *hlid == wlvif->ap.bcast_hlid) { 390 u32 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING; 391 /* 392 * save the total freed packets in the wlvif, in case this is 393 * recovery or suspend 394 */ 395 wlvif->total_freed_pkts = wl->links[*hlid].total_freed_pkts; 396 397 /* 398 * increment the initial seq number on recovery to account for 399 * transmitted packets that we haven't yet got in the FW status 400 */ 401 if (wlvif->encryption_type == KEY_GEM) 402 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING_GEM; 403 404 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) 405 wlvif->total_freed_pkts += sqn_padding; 406 } 407 408 wl->links[*hlid].total_freed_pkts = 0; 409 410 *hlid = WL12XX_INVALID_LINK_ID; 411 wl->active_link_count--; 412 WARN_ON_ONCE(wl->active_link_count < 0); 413 } 414 415 u8 wlcore_get_native_channel_type(u8 nl_channel_type) 416 { 417 switch (nl_channel_type) { 418 case NL80211_CHAN_NO_HT: 419 return WLCORE_CHAN_NO_HT; 420 case NL80211_CHAN_HT20: 421 return WLCORE_CHAN_HT20; 422 case NL80211_CHAN_HT40MINUS: 423 return WLCORE_CHAN_HT40MINUS; 424 case NL80211_CHAN_HT40PLUS: 425 return WLCORE_CHAN_HT40PLUS; 426 default: 427 WARN_ON(1); 428 return WLCORE_CHAN_NO_HT; 429 } 430 } 431 EXPORT_SYMBOL_GPL(wlcore_get_native_channel_type); 432 433 static int wl12xx_cmd_role_start_dev(struct wl1271 *wl, 434 struct wl12xx_vif *wlvif, 435 enum nl80211_band band, 436 int channel) 437 { 438 struct wl12xx_cmd_role_start *cmd; 439 int ret; 440 441 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 442 if (!cmd) { 443 ret = -ENOMEM; 444 goto out; 445 } 446 447 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id); 448 449 cmd->role_id = wlvif->dev_role_id; 450 if (band == NL80211_BAND_5GHZ) 451 cmd->band = WLCORE_BAND_5GHZ; 452 cmd->channel = channel; 453 454 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) { 455 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid); 456 if (ret) 457 goto out_free; 458 } 459 cmd->device.hlid = wlvif->dev_hlid; 460 cmd->device.session = wl->session_ids[wlvif->dev_hlid]; 461 462 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d", 463 cmd->role_id, cmd->device.hlid, cmd->device.session); 464 465 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 466 if (ret < 0) { 467 wl1271_error("failed to initiate cmd role enable"); 468 goto err_hlid; 469 } 470 471 goto out_free; 472 473 err_hlid: 474 /* clear links on error */ 475 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 476 477 out_free: 478 kfree(cmd); 479 480 out: 481 return ret; 482 } 483 484 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, 485 struct wl12xx_vif *wlvif) 486 { 487 struct wl12xx_cmd_role_stop *cmd; 488 int ret; 489 490 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID)) 491 return -EINVAL; 492 493 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 494 if (!cmd) { 495 ret = -ENOMEM; 496 goto out; 497 } 498 499 wl1271_debug(DEBUG_CMD, "cmd role stop dev"); 500 501 cmd->role_id = wlvif->dev_role_id; 502 cmd->disc_type = DISCONNECT_IMMEDIATE; 503 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 504 505 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 506 if (ret < 0) { 507 wl1271_error("failed to initiate cmd role stop"); 508 goto out_free; 509 } 510 511 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 512 513 out_free: 514 kfree(cmd); 515 516 out: 517 return ret; 518 } 519 520 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 521 { 522 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 523 struct wl12xx_cmd_role_start *cmd; 524 u32 supported_rates; 525 int ret; 526 527 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 528 if (!cmd) { 529 ret = -ENOMEM; 530 goto out; 531 } 532 533 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id); 534 535 cmd->role_id = wlvif->role_id; 536 if (wlvif->band == NL80211_BAND_5GHZ) 537 cmd->band = WLCORE_BAND_5GHZ; 538 cmd->channel = wlvif->channel; 539 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 540 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int); 541 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY; 542 cmd->sta.ssid_len = wlvif->ssid_len; 543 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len); 544 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN); 545 546 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES | 547 wlcore_hw_sta_get_ap_rate_mask(wl, wlvif); 548 if (wlvif->p2p) 549 supported_rates &= ~CONF_TX_CCK_RATES; 550 551 cmd->sta.local_rates = cpu_to_le32(supported_rates); 552 553 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 554 555 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 556 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 557 if (ret) 558 goto out_free; 559 } 560 cmd->sta.hlid = wlvif->sta.hlid; 561 cmd->sta.session = wl->session_ids[wlvif->sta.hlid]; 562 /* 563 * We don't have the correct remote rates in this stage. The 564 * rates will be reconfigured later, after association, if the 565 * firmware supports ACX_PEER_CAP. Otherwise, there's nothing 566 * we can do, so use all supported_rates here. 567 */ 568 cmd->sta.remote_rates = cpu_to_le32(supported_rates); 569 570 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 571 "basic_rate_set: 0x%x, remote_rates: 0x%x", 572 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 573 wlvif->basic_rate_set, wlvif->rate_set); 574 575 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 576 if (ret < 0) { 577 wl1271_error("failed to initiate cmd role start sta"); 578 goto err_hlid; 579 } 580 581 wlvif->sta.role_chan_type = wlvif->channel_type; 582 goto out_free; 583 584 err_hlid: 585 /* clear links on error. */ 586 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 587 588 out_free: 589 kfree(cmd); 590 591 out: 592 return ret; 593 } 594 595 /* use this function to stop ibss as well */ 596 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 597 { 598 struct wl12xx_cmd_role_stop *cmd; 599 int ret; 600 601 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)) 602 return -EINVAL; 603 604 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 605 if (!cmd) { 606 ret = -ENOMEM; 607 goto out; 608 } 609 610 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id); 611 612 cmd->role_id = wlvif->role_id; 613 cmd->disc_type = DISCONNECT_IMMEDIATE; 614 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 615 616 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 617 if (ret < 0) { 618 wl1271_error("failed to initiate cmd role stop sta"); 619 goto out_free; 620 } 621 622 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 623 624 out_free: 625 kfree(cmd); 626 627 out: 628 return ret; 629 } 630 631 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 632 { 633 struct wl12xx_cmd_role_start *cmd; 634 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 635 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 636 u32 supported_rates; 637 int ret; 638 639 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id); 640 641 /* If MESH --> ssid_len is always 0 */ 642 if (!ieee80211_vif_is_mesh(vif)) { 643 /* trying to use hidden SSID with an old hostapd version */ 644 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) { 645 wl1271_error("got a null SSID from beacon/bss"); 646 ret = -EINVAL; 647 goto out; 648 } 649 } 650 651 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 652 if (!cmd) { 653 ret = -ENOMEM; 654 goto out; 655 } 656 657 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid); 658 if (ret < 0) 659 goto out_free; 660 661 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid); 662 if (ret < 0) 663 goto out_free_global; 664 665 /* use the previous security seq, if this is a recovery/resume */ 666 wl->links[wlvif->ap.bcast_hlid].total_freed_pkts = 667 wlvif->total_freed_pkts; 668 669 cmd->role_id = wlvif->role_id; 670 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period); 671 cmd->ap.bss_index = WL1271_AP_BSS_INDEX; 672 cmd->ap.global_hlid = wlvif->ap.global_hlid; 673 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid; 674 cmd->ap.global_session_id = wl->session_ids[wlvif->ap.global_hlid]; 675 cmd->ap.bcast_session_id = wl->session_ids[wlvif->ap.bcast_hlid]; 676 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 677 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int); 678 cmd->ap.dtim_interval = bss_conf->dtim_period; 679 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP; 680 /* FIXME: Change when adding DFS */ 681 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */ 682 cmd->ap.wmm = wlvif->wmm_enabled; 683 cmd->channel = wlvif->channel; 684 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 685 686 if (!bss_conf->hidden_ssid) { 687 /* take the SSID from the beacon for backward compatibility */ 688 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC; 689 cmd->ap.ssid_len = wlvif->ssid_len; 690 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len); 691 } else { 692 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN; 693 cmd->ap.ssid_len = bss_conf->ssid_len; 694 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len); 695 } 696 697 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES | 698 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif); 699 if (wlvif->p2p) 700 supported_rates &= ~CONF_TX_CCK_RATES; 701 702 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x", 703 supported_rates); 704 705 cmd->ap.local_rates = cpu_to_le32(supported_rates); 706 707 switch (wlvif->band) { 708 case NL80211_BAND_2GHZ: 709 cmd->band = WLCORE_BAND_2_4GHZ; 710 break; 711 case NL80211_BAND_5GHZ: 712 cmd->band = WLCORE_BAND_5GHZ; 713 break; 714 default: 715 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band); 716 cmd->band = WLCORE_BAND_2_4GHZ; 717 break; 718 } 719 720 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 721 if (ret < 0) { 722 wl1271_error("failed to initiate cmd role start ap"); 723 goto out_free_bcast; 724 } 725 726 goto out_free; 727 728 out_free_bcast: 729 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 730 731 out_free_global: 732 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 733 734 out_free: 735 kfree(cmd); 736 737 out: 738 return ret; 739 } 740 741 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 742 { 743 struct wl12xx_cmd_role_stop *cmd; 744 int ret; 745 746 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 747 if (!cmd) { 748 ret = -ENOMEM; 749 goto out; 750 } 751 752 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id); 753 754 cmd->role_id = wlvif->role_id; 755 756 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 757 if (ret < 0) { 758 wl1271_error("failed to initiate cmd role stop ap"); 759 goto out_free; 760 } 761 762 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 763 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 764 765 out_free: 766 kfree(cmd); 767 768 out: 769 return ret; 770 } 771 772 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif) 773 { 774 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 775 struct wl12xx_cmd_role_start *cmd; 776 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 777 int ret; 778 779 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 780 if (!cmd) { 781 ret = -ENOMEM; 782 goto out; 783 } 784 785 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id); 786 787 cmd->role_id = wlvif->role_id; 788 if (wlvif->band == NL80211_BAND_5GHZ) 789 cmd->band = WLCORE_BAND_5GHZ; 790 cmd->channel = wlvif->channel; 791 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 792 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int); 793 cmd->ibss.dtim_interval = bss_conf->dtim_period; 794 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY; 795 cmd->ibss.ssid_len = wlvif->ssid_len; 796 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len); 797 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN); 798 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 799 800 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 801 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 802 if (ret) 803 goto out_free; 804 } 805 cmd->ibss.hlid = wlvif->sta.hlid; 806 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set); 807 808 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 809 "basic_rate_set: 0x%x, remote_rates: 0x%x", 810 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 811 wlvif->basic_rate_set, wlvif->rate_set); 812 813 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM", 814 vif->bss_conf.bssid); 815 816 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 817 if (ret < 0) { 818 wl1271_error("failed to initiate cmd role enable"); 819 goto err_hlid; 820 } 821 822 goto out_free; 823 824 err_hlid: 825 /* clear links on error. */ 826 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 827 828 out_free: 829 kfree(cmd); 830 831 out: 832 return ret; 833 } 834 835 836 /** 837 * send test command to firmware 838 * 839 * @wl: wl struct 840 * @buf: buffer containing the command, with all headers, must work with dma 841 * @len: length of the buffer 842 * @answer: is answer needed 843 */ 844 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer) 845 { 846 int ret; 847 size_t res_len = 0; 848 849 wl1271_debug(DEBUG_CMD, "cmd test"); 850 851 if (answer) 852 res_len = buf_len; 853 854 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len); 855 856 if (ret < 0) { 857 wl1271_warning("TEST command failed"); 858 return ret; 859 } 860 861 return ret; 862 } 863 EXPORT_SYMBOL_GPL(wl1271_cmd_test); 864 865 /** 866 * read acx from firmware 867 * 868 * @wl: wl struct 869 * @id: acx id 870 * @buf: buffer for the response, including all headers, must work with dma 871 * @len: length of buf 872 */ 873 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, 874 size_t cmd_len, size_t res_len) 875 { 876 struct acx_header *acx = buf; 877 int ret; 878 879 wl1271_debug(DEBUG_CMD, "cmd interrogate"); 880 881 acx->id = cpu_to_le16(id); 882 883 /* response payload length, does not include any headers */ 884 acx->len = cpu_to_le16(res_len - sizeof(*acx)); 885 886 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, cmd_len, res_len); 887 if (ret < 0) 888 wl1271_error("INTERROGATE command failed"); 889 890 return ret; 891 } 892 893 /** 894 * write acx value to firmware 895 * 896 * @wl: wl struct 897 * @id: acx id 898 * @buf: buffer containing acx, including all headers, must work with dma 899 * @len: length of buf 900 * @valid_rets: bitmap of valid cmd status codes (i.e. return values). 901 * return the cmd status on success. 902 */ 903 int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf, 904 size_t len, unsigned long valid_rets) 905 { 906 struct acx_header *acx = buf; 907 int ret; 908 909 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id); 910 911 if (WARN_ON_ONCE(len < sizeof(*acx))) 912 return -EIO; 913 914 acx->id = cpu_to_le16(id); 915 916 /* payload length, does not include any headers */ 917 acx->len = cpu_to_le16(len - sizeof(*acx)); 918 919 ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0, 920 valid_rets); 921 if (ret < 0) { 922 wl1271_warning("CONFIGURE command NOK"); 923 return ret; 924 } 925 926 return ret; 927 } 928 929 /* 930 * wrapper for wlcore_cmd_configure that accepts only success status. 931 * return 0 on success 932 */ 933 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len) 934 { 935 int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0); 936 937 if (ret < 0) 938 return ret; 939 return 0; 940 } 941 EXPORT_SYMBOL_GPL(wl1271_cmd_configure); 942 943 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable) 944 { 945 struct cmd_enabledisable_path *cmd; 946 int ret; 947 u16 cmd_rx, cmd_tx; 948 949 wl1271_debug(DEBUG_CMD, "cmd data path"); 950 951 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 952 if (!cmd) { 953 ret = -ENOMEM; 954 goto out; 955 } 956 957 /* the channel here is only used for calibration, so hardcoded to 1 */ 958 cmd->channel = 1; 959 960 if (enable) { 961 cmd_rx = CMD_ENABLE_RX; 962 cmd_tx = CMD_ENABLE_TX; 963 } else { 964 cmd_rx = CMD_DISABLE_RX; 965 cmd_tx = CMD_DISABLE_TX; 966 } 967 968 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0); 969 if (ret < 0) { 970 wl1271_error("rx %s cmd for channel %d failed", 971 enable ? "start" : "stop", cmd->channel); 972 goto out; 973 } 974 975 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d", 976 enable ? "start" : "stop", cmd->channel); 977 978 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0); 979 if (ret < 0) { 980 wl1271_error("tx %s cmd for channel %d failed", 981 enable ? "start" : "stop", cmd->channel); 982 goto out; 983 } 984 985 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d", 986 enable ? "start" : "stop", cmd->channel); 987 988 out: 989 kfree(cmd); 990 return ret; 991 } 992 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path); 993 994 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif, 995 u8 ps_mode, u16 auto_ps_timeout) 996 { 997 struct wl1271_cmd_ps_params *ps_params = NULL; 998 int ret = 0; 999 1000 wl1271_debug(DEBUG_CMD, "cmd set ps mode"); 1001 1002 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL); 1003 if (!ps_params) { 1004 ret = -ENOMEM; 1005 goto out; 1006 } 1007 1008 ps_params->role_id = wlvif->role_id; 1009 ps_params->ps_mode = ps_mode; 1010 ps_params->auto_ps_timeout = auto_ps_timeout; 1011 1012 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params, 1013 sizeof(*ps_params), 0); 1014 if (ret < 0) { 1015 wl1271_error("cmd set_ps_mode failed"); 1016 goto out; 1017 } 1018 1019 out: 1020 kfree(ps_params); 1021 return ret; 1022 } 1023 1024 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id, 1025 u16 template_id, void *buf, size_t buf_len, 1026 int index, u32 rates) 1027 { 1028 struct wl1271_cmd_template_set *cmd; 1029 int ret = 0; 1030 1031 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)", 1032 template_id, role_id); 1033 1034 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE); 1035 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE); 1036 1037 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1038 if (!cmd) { 1039 ret = -ENOMEM; 1040 goto out; 1041 } 1042 1043 /* during initialization wlvif is NULL */ 1044 cmd->role_id = role_id; 1045 cmd->len = cpu_to_le16(buf_len); 1046 cmd->template_type = template_id; 1047 cmd->enabled_rates = cpu_to_le32(rates); 1048 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit; 1049 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit; 1050 cmd->index = index; 1051 1052 if (buf) 1053 memcpy(cmd->template_data, buf, buf_len); 1054 1055 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0); 1056 if (ret < 0) { 1057 wl1271_warning("cmd set_template failed: %d", ret); 1058 goto out_free; 1059 } 1060 1061 out_free: 1062 kfree(cmd); 1063 1064 out: 1065 return ret; 1066 } 1067 1068 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1069 { 1070 struct sk_buff *skb = NULL; 1071 int size; 1072 void *ptr; 1073 int ret = -ENOMEM; 1074 1075 1076 if (wlvif->bss_type == BSS_TYPE_IBSS) { 1077 size = sizeof(struct wl12xx_null_data_template); 1078 ptr = NULL; 1079 } else { 1080 skb = ieee80211_nullfunc_get(wl->hw, 1081 wl12xx_wlvif_to_vif(wlvif), 1082 false); 1083 if (!skb) 1084 goto out; 1085 size = skb->len; 1086 ptr = skb->data; 1087 } 1088 1089 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1090 CMD_TEMPL_NULL_DATA, ptr, size, 0, 1091 wlvif->basic_rate); 1092 1093 out: 1094 dev_kfree_skb(skb); 1095 if (ret) 1096 wl1271_warning("cmd buld null data failed %d", ret); 1097 1098 return ret; 1099 1100 } 1101 1102 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, 1103 struct wl12xx_vif *wlvif) 1104 { 1105 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1106 struct sk_buff *skb = NULL; 1107 int ret = -ENOMEM; 1108 1109 skb = ieee80211_nullfunc_get(wl->hw, vif, false); 1110 if (!skb) 1111 goto out; 1112 1113 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV, 1114 skb->data, skb->len, 1115 wlvif->sta.klv_template_id, 1116 wlvif->basic_rate); 1117 1118 out: 1119 dev_kfree_skb(skb); 1120 if (ret) 1121 wl1271_warning("cmd build klv null data failed %d", ret); 1122 1123 return ret; 1124 1125 } 1126 1127 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1128 u16 aid) 1129 { 1130 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1131 struct sk_buff *skb; 1132 int ret = 0; 1133 1134 skb = ieee80211_pspoll_get(wl->hw, vif); 1135 if (!skb) 1136 goto out; 1137 1138 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1139 CMD_TEMPL_PS_POLL, skb->data, 1140 skb->len, 0, wlvif->basic_rate_set); 1141 1142 out: 1143 dev_kfree_skb(skb); 1144 return ret; 1145 } 1146 1147 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1148 u8 role_id, u8 band, 1149 const u8 *ssid, size_t ssid_len, 1150 const u8 *ie0, size_t ie0_len, const u8 *ie1, 1151 size_t ie1_len, bool sched_scan) 1152 { 1153 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1154 struct sk_buff *skb; 1155 int ret; 1156 u32 rate; 1157 u16 template_id_2_4 = wl->scan_templ_id_2_4; 1158 u16 template_id_5 = wl->scan_templ_id_5; 1159 1160 wl1271_debug(DEBUG_SCAN, "build probe request band %d", band); 1161 1162 skb = ieee80211_probereq_get(wl->hw, vif->addr, ssid, ssid_len, 1163 ie0_len + ie1_len); 1164 if (!skb) { 1165 ret = -ENOMEM; 1166 goto out; 1167 } 1168 if (ie0_len) 1169 skb_put_data(skb, ie0, ie0_len); 1170 if (ie1_len) 1171 skb_put_data(skb, ie1, ie1_len); 1172 1173 if (sched_scan && 1174 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) { 1175 template_id_2_4 = wl->sched_scan_templ_id_2_4; 1176 template_id_5 = wl->sched_scan_templ_id_5; 1177 } 1178 1179 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]); 1180 if (band == NL80211_BAND_2GHZ) 1181 ret = wl1271_cmd_template_set(wl, role_id, 1182 template_id_2_4, 1183 skb->data, skb->len, 0, rate); 1184 else 1185 ret = wl1271_cmd_template_set(wl, role_id, 1186 template_id_5, 1187 skb->data, skb->len, 0, rate); 1188 1189 out: 1190 dev_kfree_skb(skb); 1191 return ret; 1192 } 1193 EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req); 1194 1195 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl, 1196 struct wl12xx_vif *wlvif, 1197 struct sk_buff *skb) 1198 { 1199 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1200 int ret; 1201 u32 rate; 1202 1203 if (!skb) 1204 skb = ieee80211_ap_probereq_get(wl->hw, vif); 1205 if (!skb) 1206 goto out; 1207 1208 wl1271_debug(DEBUG_SCAN, "set ap probe request template"); 1209 1210 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]); 1211 if (wlvif->band == NL80211_BAND_2GHZ) 1212 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1213 CMD_TEMPL_CFG_PROBE_REQ_2_4, 1214 skb->data, skb->len, 0, rate); 1215 else 1216 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1217 CMD_TEMPL_CFG_PROBE_REQ_5, 1218 skb->data, skb->len, 0, rate); 1219 1220 if (ret < 0) 1221 wl1271_error("Unable to set ap probe request template."); 1222 1223 out: 1224 return skb; 1225 } 1226 1227 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1228 { 1229 int ret, extra = 0; 1230 u16 fc; 1231 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1232 struct sk_buff *skb; 1233 struct wl12xx_arp_rsp_template *tmpl; 1234 struct ieee80211_hdr_3addr *hdr; 1235 struct arphdr *arp_hdr; 1236 1237 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) + 1238 WL1271_EXTRA_SPACE_MAX); 1239 if (!skb) { 1240 wl1271_error("failed to allocate buffer for arp rsp template"); 1241 return -ENOMEM; 1242 } 1243 1244 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX); 1245 1246 tmpl = skb_put_zero(skb, sizeof(*tmpl)); 1247 1248 /* llc layer */ 1249 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header)); 1250 tmpl->llc_type = cpu_to_be16(ETH_P_ARP); 1251 1252 /* arp header */ 1253 arp_hdr = &tmpl->arp_hdr; 1254 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER); 1255 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP); 1256 arp_hdr->ar_hln = ETH_ALEN; 1257 arp_hdr->ar_pln = 4; 1258 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY); 1259 1260 /* arp payload */ 1261 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN); 1262 tmpl->sender_ip = wlvif->ip_addr; 1263 1264 /* encryption space */ 1265 switch (wlvif->encryption_type) { 1266 case KEY_TKIP: 1267 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) 1268 extra = WL1271_EXTRA_SPACE_TKIP; 1269 break; 1270 case KEY_AES: 1271 extra = WL1271_EXTRA_SPACE_AES; 1272 break; 1273 case KEY_NONE: 1274 case KEY_WEP: 1275 case KEY_GEM: 1276 extra = 0; 1277 break; 1278 default: 1279 wl1271_warning("Unknown encryption type: %d", 1280 wlvif->encryption_type); 1281 ret = -EINVAL; 1282 goto out; 1283 } 1284 1285 if (extra) { 1286 u8 *space = skb_push(skb, extra); 1287 memset(space, 0, extra); 1288 } 1289 1290 /* QoS header - BE */ 1291 if (wlvif->sta.qos) 1292 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16)); 1293 1294 /* mac80211 header */ 1295 hdr = skb_push(skb, sizeof(*hdr)); 1296 memset(hdr, 0, sizeof(*hdr)); 1297 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS; 1298 if (wlvif->sta.qos) 1299 fc |= IEEE80211_STYPE_QOS_DATA; 1300 else 1301 fc |= IEEE80211_STYPE_DATA; 1302 if (wlvif->encryption_type != KEY_NONE) 1303 fc |= IEEE80211_FCTL_PROTECTED; 1304 1305 hdr->frame_control = cpu_to_le16(fc); 1306 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN); 1307 memcpy(hdr->addr2, vif->addr, ETH_ALEN); 1308 eth_broadcast_addr(hdr->addr3); 1309 1310 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP, 1311 skb->data, skb->len, 0, 1312 wlvif->basic_rate); 1313 out: 1314 dev_kfree_skb(skb); 1315 return ret; 1316 } 1317 1318 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif) 1319 { 1320 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 1321 struct ieee80211_qos_hdr template; 1322 1323 memset(&template, 0, sizeof(template)); 1324 1325 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN); 1326 memcpy(template.addr2, vif->addr, ETH_ALEN); 1327 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN); 1328 1329 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 1330 IEEE80211_STYPE_QOS_NULLFUNC | 1331 IEEE80211_FCTL_TODS); 1332 1333 /* FIXME: not sure what priority to use here */ 1334 template.qos_ctrl = cpu_to_le16(0); 1335 1336 return wl1271_cmd_template_set(wl, wlvif->role_id, 1337 CMD_TEMPL_QOS_NULL_DATA, &template, 1338 sizeof(template), 0, 1339 wlvif->basic_rate); 1340 } 1341 1342 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid) 1343 { 1344 struct wl1271_cmd_set_keys *cmd; 1345 int ret = 0; 1346 1347 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id); 1348 1349 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1350 if (!cmd) { 1351 ret = -ENOMEM; 1352 goto out; 1353 } 1354 1355 cmd->hlid = hlid; 1356 cmd->key_id = id; 1357 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1358 cmd->key_action = cpu_to_le16(KEY_SET_ID); 1359 cmd->key_type = KEY_WEP; 1360 1361 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1362 if (ret < 0) { 1363 wl1271_warning("cmd set_default_wep_key failed: %d", ret); 1364 goto out; 1365 } 1366 1367 out: 1368 kfree(cmd); 1369 1370 return ret; 1371 } 1372 1373 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1374 u16 action, u8 id, u8 key_type, 1375 u8 key_size, const u8 *key, const u8 *addr, 1376 u32 tx_seq_32, u16 tx_seq_16) 1377 { 1378 struct wl1271_cmd_set_keys *cmd; 1379 int ret = 0; 1380 1381 /* hlid might have already been deleted */ 1382 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) 1383 return 0; 1384 1385 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1386 if (!cmd) { 1387 ret = -ENOMEM; 1388 goto out; 1389 } 1390 1391 cmd->hlid = wlvif->sta.hlid; 1392 1393 if (key_type == KEY_WEP) 1394 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1395 else if (is_broadcast_ether_addr(addr)) 1396 cmd->lid_key_type = BROADCAST_LID_TYPE; 1397 else 1398 cmd->lid_key_type = UNICAST_LID_TYPE; 1399 1400 cmd->key_action = cpu_to_le16(action); 1401 cmd->key_size = key_size; 1402 cmd->key_type = key_type; 1403 1404 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1405 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1406 1407 cmd->key_id = id; 1408 1409 if (key_type == KEY_TKIP) { 1410 /* 1411 * We get the key in the following form: 1412 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1413 * but the target is expecting: 1414 * TKIP - RX MIC - TX MIC 1415 */ 1416 memcpy(cmd->key, key, 16); 1417 memcpy(cmd->key + 16, key + 24, 8); 1418 memcpy(cmd->key + 24, key + 16, 8); 1419 1420 } else { 1421 memcpy(cmd->key, key, key_size); 1422 } 1423 1424 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd)); 1425 1426 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1427 if (ret < 0) { 1428 wl1271_warning("could not set keys"); 1429 goto out; 1430 } 1431 1432 out: 1433 kfree(cmd); 1434 1435 return ret; 1436 } 1437 1438 /* 1439 * TODO: merge with sta/ibss into 1 set_key function. 1440 * note there are slight diffs 1441 */ 1442 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1443 u16 action, u8 id, u8 key_type, 1444 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32, 1445 u16 tx_seq_16) 1446 { 1447 struct wl1271_cmd_set_keys *cmd; 1448 int ret = 0; 1449 u8 lid_type; 1450 1451 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1452 if (!cmd) 1453 return -ENOMEM; 1454 1455 if (hlid == wlvif->ap.bcast_hlid) { 1456 if (key_type == KEY_WEP) 1457 lid_type = WEP_DEFAULT_LID_TYPE; 1458 else 1459 lid_type = BROADCAST_LID_TYPE; 1460 } else { 1461 lid_type = UNICAST_LID_TYPE; 1462 } 1463 1464 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d" 1465 " hlid: %d", (int)action, (int)id, (int)lid_type, 1466 (int)key_type, (int)hlid); 1467 1468 cmd->lid_key_type = lid_type; 1469 cmd->hlid = hlid; 1470 cmd->key_action = cpu_to_le16(action); 1471 cmd->key_size = key_size; 1472 cmd->key_type = key_type; 1473 cmd->key_id = id; 1474 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1475 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1476 1477 if (key_type == KEY_TKIP) { 1478 /* 1479 * We get the key in the following form: 1480 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1481 * but the target is expecting: 1482 * TKIP - RX MIC - TX MIC 1483 */ 1484 memcpy(cmd->key, key, 16); 1485 memcpy(cmd->key + 16, key + 24, 8); 1486 memcpy(cmd->key + 24, key + 16, 8); 1487 } else { 1488 memcpy(cmd->key, key, key_size); 1489 } 1490 1491 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd)); 1492 1493 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1494 if (ret < 0) { 1495 wl1271_warning("could not set ap keys"); 1496 goto out; 1497 } 1498 1499 out: 1500 kfree(cmd); 1501 return ret; 1502 } 1503 1504 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1505 u8 hlid) 1506 { 1507 struct wl12xx_cmd_set_peer_state *cmd; 1508 int ret = 0; 1509 1510 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid); 1511 1512 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1513 if (!cmd) { 1514 ret = -ENOMEM; 1515 goto out; 1516 } 1517 1518 cmd->hlid = hlid; 1519 cmd->state = WL1271_CMD_STA_STATE_CONNECTED; 1520 1521 /* wmm param is valid only for station role */ 1522 if (wlvif->bss_type == BSS_TYPE_STA_BSS) 1523 cmd->wmm = wlvif->wmm_enabled; 1524 1525 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0); 1526 if (ret < 0) { 1527 wl1271_error("failed to send set peer state command"); 1528 goto out_free; 1529 } 1530 1531 out_free: 1532 kfree(cmd); 1533 1534 out: 1535 return ret; 1536 } 1537 1538 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1539 struct ieee80211_sta *sta, u8 hlid) 1540 { 1541 struct wl12xx_cmd_add_peer *cmd; 1542 int i, ret; 1543 u32 sta_rates; 1544 1545 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid); 1546 1547 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1548 if (!cmd) { 1549 ret = -ENOMEM; 1550 goto out; 1551 } 1552 1553 memcpy(cmd->addr, sta->addr, ETH_ALEN); 1554 cmd->bss_index = WL1271_AP_BSS_INDEX; 1555 cmd->aid = sta->aid; 1556 cmd->hlid = hlid; 1557 cmd->sp_len = sta->max_sp; 1558 cmd->wmm = sta->wme ? 1 : 0; 1559 cmd->session_id = wl->session_ids[hlid]; 1560 cmd->role_id = wlvif->role_id; 1561 1562 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++) 1563 if (sta->wme && (sta->uapsd_queues & BIT(i))) 1564 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1565 WL1271_PSD_UPSD_TRIGGER; 1566 else 1567 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1568 WL1271_PSD_LEGACY; 1569 1570 1571 sta_rates = sta->supp_rates[wlvif->band]; 1572 if (sta->ht_cap.ht_supported) 1573 sta_rates |= 1574 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) | 1575 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET); 1576 1577 cmd->supported_rates = 1578 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates, 1579 wlvif->band)); 1580 1581 if (!cmd->supported_rates) { 1582 wl1271_debug(DEBUG_CMD, 1583 "peer has no supported rates yet, configuring basic rates: 0x%x", 1584 wlvif->basic_rate_set); 1585 cmd->supported_rates = cpu_to_le32(wlvif->basic_rate_set); 1586 } 1587 1588 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x", 1589 cmd->supported_rates, sta->uapsd_queues); 1590 1591 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0); 1592 if (ret < 0) { 1593 wl1271_error("failed to initiate cmd add peer"); 1594 goto out_free; 1595 } 1596 1597 out_free: 1598 kfree(cmd); 1599 1600 out: 1601 return ret; 1602 } 1603 1604 int wl12xx_cmd_remove_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1605 u8 hlid) 1606 { 1607 struct wl12xx_cmd_remove_peer *cmd; 1608 int ret; 1609 bool timeout = false; 1610 1611 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid); 1612 1613 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1614 if (!cmd) { 1615 ret = -ENOMEM; 1616 goto out; 1617 } 1618 1619 cmd->hlid = hlid; 1620 /* We never send a deauth, mac80211 is in charge of this */ 1621 cmd->reason_opcode = 0; 1622 cmd->send_deauth_flag = 0; 1623 cmd->role_id = wlvif->role_id; 1624 1625 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0); 1626 if (ret < 0) { 1627 wl1271_error("failed to initiate cmd remove peer"); 1628 goto out_free; 1629 } 1630 1631 ret = wl->ops->wait_for_event(wl, 1632 WLCORE_EVENT_PEER_REMOVE_COMPLETE, 1633 &timeout); 1634 1635 /* 1636 * We are ok with a timeout here. The event is sometimes not sent 1637 * due to a firmware bug. In case of another error (like SDIO timeout) 1638 * queue a recovery. 1639 */ 1640 if (ret) 1641 wl12xx_queue_recovery_work(wl); 1642 1643 out_free: 1644 kfree(cmd); 1645 1646 out: 1647 return ret; 1648 } 1649 1650 static int wlcore_get_reg_conf_ch_idx(enum nl80211_band band, u16 ch) 1651 { 1652 /* 1653 * map the given band/channel to the respective predefined 1654 * bit expected by the fw 1655 */ 1656 switch (band) { 1657 case NL80211_BAND_2GHZ: 1658 /* channels 1..14 are mapped to 0..13 */ 1659 if (ch >= 1 && ch <= 14) 1660 return ch - 1; 1661 break; 1662 case NL80211_BAND_5GHZ: 1663 switch (ch) { 1664 case 8 ... 16: 1665 /* channels 8,12,16 are mapped to 18,19,20 */ 1666 return 18 + (ch-8)/4; 1667 case 34 ... 48: 1668 /* channels 34,36..48 are mapped to 21..28 */ 1669 return 21 + (ch-34)/2; 1670 case 52 ... 64: 1671 /* channels 52,56..64 are mapped to 29..32 */ 1672 return 29 + (ch-52)/4; 1673 case 100 ... 140: 1674 /* channels 100,104..140 are mapped to 33..43 */ 1675 return 33 + (ch-100)/4; 1676 case 149 ... 165: 1677 /* channels 149,153..165 are mapped to 44..48 */ 1678 return 44 + (ch-149)/4; 1679 default: 1680 break; 1681 } 1682 break; 1683 default: 1684 break; 1685 } 1686 1687 wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch); 1688 return -1; 1689 } 1690 1691 void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel, 1692 enum nl80211_band band) 1693 { 1694 int ch_bit_idx = 0; 1695 1696 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF)) 1697 return; 1698 1699 ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel); 1700 1701 if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS) 1702 set_bit(ch_bit_idx, (long *)wl->reg_ch_conf_pending); 1703 } 1704 1705 int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl) 1706 { 1707 struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL; 1708 int ret = 0, i, b, ch_bit_idx; 1709 u32 tmp_ch_bitmap[2]; 1710 struct wiphy *wiphy = wl->hw->wiphy; 1711 struct ieee80211_supported_band *band; 1712 bool timeout = false; 1713 1714 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF)) 1715 return 0; 1716 1717 wl1271_debug(DEBUG_CMD, "cmd reg domain config"); 1718 1719 memset(tmp_ch_bitmap, 0, sizeof(tmp_ch_bitmap)); 1720 1721 for (b = NL80211_BAND_2GHZ; b <= NL80211_BAND_5GHZ; b++) { 1722 band = wiphy->bands[b]; 1723 for (i = 0; i < band->n_channels; i++) { 1724 struct ieee80211_channel *channel = &band->channels[i]; 1725 u16 ch = channel->hw_value; 1726 u32 flags = channel->flags; 1727 1728 if (flags & (IEEE80211_CHAN_DISABLED | 1729 IEEE80211_CHAN_NO_IR)) 1730 continue; 1731 1732 if ((flags & IEEE80211_CHAN_RADAR) && 1733 channel->dfs_state != NL80211_DFS_AVAILABLE) 1734 continue; 1735 1736 ch_bit_idx = wlcore_get_reg_conf_ch_idx(b, ch); 1737 if (ch_bit_idx < 0) 1738 continue; 1739 1740 set_bit(ch_bit_idx, (long *)tmp_ch_bitmap); 1741 } 1742 } 1743 1744 tmp_ch_bitmap[0] |= wl->reg_ch_conf_pending[0]; 1745 tmp_ch_bitmap[1] |= wl->reg_ch_conf_pending[1]; 1746 1747 if (!memcmp(tmp_ch_bitmap, wl->reg_ch_conf_last, sizeof(tmp_ch_bitmap))) 1748 goto out; 1749 1750 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1751 if (!cmd) { 1752 ret = -ENOMEM; 1753 goto out; 1754 } 1755 1756 cmd->ch_bit_map1 = cpu_to_le32(tmp_ch_bitmap[0]); 1757 cmd->ch_bit_map2 = cpu_to_le32(tmp_ch_bitmap[1]); 1758 cmd->dfs_region = wl->dfs_region; 1759 1760 wl1271_debug(DEBUG_CMD, 1761 "cmd reg domain bitmap1: 0x%08x, bitmap2: 0x%08x", 1762 cmd->ch_bit_map1, cmd->ch_bit_map2); 1763 1764 ret = wl1271_cmd_send(wl, CMD_DFS_CHANNEL_CONFIG, cmd, sizeof(*cmd), 0); 1765 if (ret < 0) { 1766 wl1271_error("failed to send reg domain dfs config"); 1767 goto out; 1768 } 1769 1770 ret = wl->ops->wait_for_event(wl, 1771 WLCORE_EVENT_DFS_CONFIG_COMPLETE, 1772 &timeout); 1773 if (ret < 0 || timeout) { 1774 wl1271_error("reg domain conf %serror", 1775 timeout ? "completion " : ""); 1776 ret = timeout ? -ETIMEDOUT : ret; 1777 goto out; 1778 } 1779 1780 memcpy(wl->reg_ch_conf_last, tmp_ch_bitmap, sizeof(tmp_ch_bitmap)); 1781 memset(wl->reg_ch_conf_pending, 0, sizeof(wl->reg_ch_conf_pending)); 1782 1783 out: 1784 kfree(cmd); 1785 return ret; 1786 } 1787 1788 int wl12xx_cmd_config_fwlog(struct wl1271 *wl) 1789 { 1790 struct wl12xx_cmd_config_fwlog *cmd; 1791 int ret = 0; 1792 1793 wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); 1794 1795 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1796 if (!cmd) { 1797 ret = -ENOMEM; 1798 goto out; 1799 } 1800 1801 cmd->logger_mode = wl->conf.fwlog.mode; 1802 cmd->log_severity = wl->conf.fwlog.severity; 1803 cmd->timestamp = wl->conf.fwlog.timestamp; 1804 cmd->output = wl->conf.fwlog.output; 1805 cmd->threshold = wl->conf.fwlog.threshold; 1806 1807 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); 1808 if (ret < 0) { 1809 wl1271_error("failed to send config firmware logger command"); 1810 goto out_free; 1811 } 1812 1813 out_free: 1814 kfree(cmd); 1815 1816 out: 1817 return ret; 1818 } 1819 1820 int wl12xx_cmd_start_fwlog(struct wl1271 *wl) 1821 { 1822 struct wl12xx_cmd_start_fwlog *cmd; 1823 int ret = 0; 1824 1825 wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); 1826 1827 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1828 if (!cmd) { 1829 ret = -ENOMEM; 1830 goto out; 1831 } 1832 1833 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); 1834 if (ret < 0) { 1835 wl1271_error("failed to send start firmware logger command"); 1836 goto out_free; 1837 } 1838 1839 out_free: 1840 kfree(cmd); 1841 1842 out: 1843 return ret; 1844 } 1845 1846 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) 1847 { 1848 struct wl12xx_cmd_stop_fwlog *cmd; 1849 int ret = 0; 1850 1851 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); 1852 1853 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1854 if (!cmd) { 1855 ret = -ENOMEM; 1856 goto out; 1857 } 1858 1859 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); 1860 if (ret < 0) { 1861 wl1271_error("failed to send stop firmware logger command"); 1862 goto out_free; 1863 } 1864 1865 out_free: 1866 kfree(cmd); 1867 1868 out: 1869 return ret; 1870 } 1871 1872 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1873 u8 role_id, enum nl80211_band band, u8 channel) 1874 { 1875 struct wl12xx_cmd_roc *cmd; 1876 int ret = 0; 1877 1878 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id); 1879 1880 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID)) 1881 return -EINVAL; 1882 1883 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1884 if (!cmd) { 1885 ret = -ENOMEM; 1886 goto out; 1887 } 1888 1889 cmd->role_id = role_id; 1890 cmd->channel = channel; 1891 switch (band) { 1892 case NL80211_BAND_2GHZ: 1893 cmd->band = WLCORE_BAND_2_4GHZ; 1894 break; 1895 case NL80211_BAND_5GHZ: 1896 cmd->band = WLCORE_BAND_5GHZ; 1897 break; 1898 default: 1899 wl1271_error("roc - unknown band: %d", (int)wlvif->band); 1900 ret = -EINVAL; 1901 goto out_free; 1902 } 1903 1904 1905 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0); 1906 if (ret < 0) { 1907 wl1271_error("failed to send ROC command"); 1908 goto out_free; 1909 } 1910 1911 out_free: 1912 kfree(cmd); 1913 1914 out: 1915 return ret; 1916 } 1917 1918 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id) 1919 { 1920 struct wl12xx_cmd_croc *cmd; 1921 int ret = 0; 1922 1923 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id); 1924 1925 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1926 if (!cmd) { 1927 ret = -ENOMEM; 1928 goto out; 1929 } 1930 cmd->role_id = role_id; 1931 1932 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd, 1933 sizeof(*cmd), 0); 1934 if (ret < 0) { 1935 wl1271_error("failed to send ROC command"); 1936 goto out_free; 1937 } 1938 1939 out_free: 1940 kfree(cmd); 1941 1942 out: 1943 return ret; 1944 } 1945 1946 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id, 1947 enum nl80211_band band, u8 channel) 1948 { 1949 int ret = 0; 1950 1951 if (WARN_ON(test_bit(role_id, wl->roc_map))) 1952 return 0; 1953 1954 ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel); 1955 if (ret < 0) 1956 goto out; 1957 1958 __set_bit(role_id, wl->roc_map); 1959 out: 1960 return ret; 1961 } 1962 1963 int wl12xx_croc(struct wl1271 *wl, u8 role_id) 1964 { 1965 int ret = 0; 1966 1967 if (WARN_ON(!test_bit(role_id, wl->roc_map))) 1968 return 0; 1969 1970 ret = wl12xx_cmd_croc(wl, role_id); 1971 if (ret < 0) 1972 goto out; 1973 1974 __clear_bit(role_id, wl->roc_map); 1975 1976 /* 1977 * Rearm the tx watchdog when removing the last ROC. This prevents 1978 * recoveries due to just finished ROCs - when Tx hasn't yet had 1979 * a chance to get out. 1980 */ 1981 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) 1982 wl12xx_rearm_tx_watchdog_locked(wl); 1983 out: 1984 return ret; 1985 } 1986 1987 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1988 { 1989 struct wl12xx_cmd_stop_channel_switch *cmd; 1990 int ret; 1991 1992 wl1271_debug(DEBUG_ACX, "cmd stop channel switch"); 1993 1994 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1995 if (!cmd) { 1996 ret = -ENOMEM; 1997 goto out; 1998 } 1999 2000 cmd->role_id = wlvif->role_id; 2001 2002 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0); 2003 if (ret < 0) { 2004 wl1271_error("failed to stop channel switch command"); 2005 goto out_free; 2006 } 2007 2008 out_free: 2009 kfree(cmd); 2010 2011 out: 2012 return ret; 2013 } 2014 2015 /* start dev role and roc on its channel */ 2016 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif, 2017 enum nl80211_band band, int channel) 2018 { 2019 int ret; 2020 2021 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 2022 wlvif->bss_type == BSS_TYPE_IBSS))) 2023 return -EINVAL; 2024 2025 /* the dev role is already started for p2p mgmt interfaces */ 2026 if (!wlcore_is_p2p_mgmt(wlvif)) { 2027 ret = wl12xx_cmd_role_enable(wl, 2028 wl12xx_wlvif_to_vif(wlvif)->addr, 2029 WL1271_ROLE_DEVICE, 2030 &wlvif->dev_role_id); 2031 if (ret < 0) 2032 goto out; 2033 } 2034 2035 ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel); 2036 if (ret < 0) 2037 goto out_disable; 2038 2039 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel); 2040 if (ret < 0) 2041 goto out_stop; 2042 2043 return 0; 2044 2045 out_stop: 2046 wl12xx_cmd_role_stop_dev(wl, wlvif); 2047 out_disable: 2048 if (!wlcore_is_p2p_mgmt(wlvif)) 2049 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 2050 out: 2051 return ret; 2052 } 2053 2054 /* croc dev hlid, and stop the role */ 2055 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 2056 { 2057 int ret; 2058 2059 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 2060 wlvif->bss_type == BSS_TYPE_IBSS))) 2061 return -EINVAL; 2062 2063 /* flush all pending packets */ 2064 ret = wlcore_tx_work_locked(wl); 2065 if (ret < 0) 2066 goto out; 2067 2068 if (test_bit(wlvif->dev_role_id, wl->roc_map)) { 2069 ret = wl12xx_croc(wl, wlvif->dev_role_id); 2070 if (ret < 0) 2071 goto out; 2072 } 2073 2074 ret = wl12xx_cmd_role_stop_dev(wl, wlvif); 2075 if (ret < 0) 2076 goto out; 2077 2078 if (!wlcore_is_p2p_mgmt(wlvif)) { 2079 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 2080 if (ret < 0) 2081 goto out; 2082 } 2083 2084 out: 2085 return ret; 2086 } 2087 2088 int wlcore_cmd_generic_cfg(struct wl1271 *wl, struct wl12xx_vif *wlvif, 2089 u8 feature, u8 enable, u8 value) 2090 { 2091 struct wlcore_cmd_generic_cfg *cmd; 2092 int ret; 2093 2094 wl1271_debug(DEBUG_CMD, 2095 "cmd generic cfg (role %d feature %d enable %d value %d)", 2096 wlvif->role_id, feature, enable, value); 2097 2098 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 2099 if (!cmd) 2100 return -ENOMEM; 2101 2102 cmd->role_id = wlvif->role_id; 2103 cmd->feature = feature; 2104 cmd->enable = enable; 2105 cmd->value = value; 2106 2107 ret = wl1271_cmd_send(wl, CMD_GENERIC_CFG, cmd, sizeof(*cmd), 0); 2108 if (ret < 0) { 2109 wl1271_error("failed to send generic cfg command"); 2110 goto out_free; 2111 } 2112 out_free: 2113 kfree(cmd); 2114 return ret; 2115 } 2116 EXPORT_SYMBOL_GPL(wlcore_cmd_generic_cfg); 2117