1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * This file is part of wl1271 4 * 5 * Copyright (C) 2009-2010 Nokia Corporation 6 * 7 * Contact: Luciano Coelho <luciano.coelho@nokia.com> 8 */ 9 10 #include <linux/module.h> 11 #include <linux/platform_device.h> 12 #include <linux/pm_runtime.h> 13 #include <linux/spi/spi.h> 14 #include <linux/etherdevice.h> 15 #include <linux/ieee80211.h> 16 #include <linux/slab.h> 17 18 #include "wlcore.h" 19 #include "debug.h" 20 #include "io.h" 21 #include "acx.h" 22 #include "wl12xx_80211.h" 23 #include "cmd.h" 24 #include "event.h" 25 #include "tx.h" 26 #include "hw_ops.h" 27 28 #define WL1271_CMD_FAST_POLL_COUNT 50 29 #define WL1271_WAIT_EVENT_FAST_POLL_COUNT 20 30 31 /* 32 * send command to firmware 33 * 34 * @wl: wl struct 35 * @id: command id 36 * @buf: buffer containing the command, must work with dma 37 * @len: length of the buffer 38 * return the cmd status code on success. 39 */ 40 static int __wlcore_cmd_send(struct wl1271 *wl, u16 id, void *buf, 41 size_t len, size_t res_len) 42 { 43 struct wl1271_cmd_header *cmd; 44 unsigned long timeout; 45 u32 intr; 46 int ret; 47 u16 status; 48 u16 poll_count = 0; 49 50 if (unlikely(wl->state == WLCORE_STATE_RESTARTING && 51 id != CMD_STOP_FWLOGGER)) 52 return -EIO; 53 54 if (WARN_ON_ONCE(len < sizeof(*cmd))) 55 return -EIO; 56 57 cmd = buf; 58 cmd->id = cpu_to_le16(id); 59 cmd->status = 0; 60 61 WARN_ON(len % 4 != 0); 62 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags)); 63 64 ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false); 65 if (ret < 0) 66 return ret; 67 68 /* 69 * TODO: we just need this because one bit is in a different 70 * place. Is there any better way? 71 */ 72 ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len); 73 if (ret < 0) 74 return ret; 75 76 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT); 77 78 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); 79 if (ret < 0) 80 return ret; 81 82 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) { 83 if (time_after(jiffies, timeout)) { 84 wl1271_error("command complete timeout"); 85 return -ETIMEDOUT; 86 } 87 88 poll_count++; 89 if (poll_count < WL1271_CMD_FAST_POLL_COUNT) 90 udelay(10); 91 else 92 msleep(1); 93 94 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); 95 if (ret < 0) 96 return ret; 97 } 98 99 /* read back the status code of the command */ 100 if (res_len == 0) 101 res_len = sizeof(struct wl1271_cmd_header); 102 103 ret = wlcore_read(wl, wl->cmd_box_addr, cmd, res_len, false); 104 if (ret < 0) 105 return ret; 106 107 status = le16_to_cpu(cmd->status); 108 109 ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK, 110 WL1271_ACX_INTR_CMD_COMPLETE); 111 if (ret < 0) 112 return ret; 113 114 return status; 115 } 116 117 /* 118 * send command to fw and return cmd status on success 119 * valid_rets contains a bitmap of allowed error codes 120 */ 121 static int wlcore_cmd_send_failsafe(struct wl1271 *wl, u16 id, void *buf, 122 size_t len, size_t res_len, 123 unsigned long valid_rets) 124 { 125 int ret = __wlcore_cmd_send(wl, id, buf, len, res_len); 126 127 if (ret < 0) 128 goto fail; 129 130 /* success is always a valid status */ 131 valid_rets |= BIT(CMD_STATUS_SUCCESS); 132 133 if (ret >= MAX_COMMAND_STATUS || 134 !test_bit(ret, &valid_rets)) { 135 wl1271_error("command execute failure %d", ret); 136 ret = -EIO; 137 goto fail; 138 } 139 return ret; 140 fail: 141 wl12xx_queue_recovery_work(wl); 142 return ret; 143 } 144 145 /* 146 * wrapper for wlcore_cmd_send that accept only CMD_STATUS_SUCCESS 147 * return 0 on success. 148 */ 149 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len, 150 size_t res_len) 151 { 152 int ret = wlcore_cmd_send_failsafe(wl, id, buf, len, res_len, 0); 153 154 if (ret < 0) 155 return ret; 156 return 0; 157 } 158 EXPORT_SYMBOL_GPL(wl1271_cmd_send); 159 160 /* 161 * Poll the mailbox event field until any of the bits in the mask is set or a 162 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs) 163 */ 164 int wlcore_cmd_wait_for_event_or_timeout(struct wl1271 *wl, 165 u32 mask, bool *timeout) 166 { 167 u32 *events_vector; 168 u32 event; 169 unsigned long timeout_time; 170 u16 poll_count = 0; 171 int ret = 0; 172 173 *timeout = false; 174 175 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA); 176 if (!events_vector) 177 return -ENOMEM; 178 179 timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT); 180 181 ret = pm_runtime_get_sync(wl->dev); 182 if (ret < 0) { 183 pm_runtime_put_noidle(wl->dev); 184 goto free_vector; 185 } 186 187 do { 188 if (time_after(jiffies, timeout_time)) { 189 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d", 190 (int)mask); 191 *timeout = true; 192 goto out; 193 } 194 195 poll_count++; 196 if (poll_count < WL1271_WAIT_EVENT_FAST_POLL_COUNT) 197 usleep_range(50, 51); 198 else 199 usleep_range(1000, 5000); 200 201 /* read from both event fields */ 202 ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector, 203 sizeof(*events_vector), false); 204 if (ret < 0) 205 goto out; 206 207 event = *events_vector & mask; 208 209 ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector, 210 sizeof(*events_vector), false); 211 if (ret < 0) 212 goto out; 213 214 event |= *events_vector & mask; 215 } while (!event); 216 217 out: 218 pm_runtime_mark_last_busy(wl->dev); 219 pm_runtime_put_autosuspend(wl->dev); 220 free_vector: 221 kfree(events_vector); 222 return ret; 223 } 224 EXPORT_SYMBOL_GPL(wlcore_cmd_wait_for_event_or_timeout); 225 226 int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type, 227 u8 *role_id) 228 { 229 struct wl12xx_cmd_role_enable *cmd; 230 int ret; 231 232 wl1271_debug(DEBUG_CMD, "cmd role enable"); 233 234 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID)) 235 return -EBUSY; 236 237 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 238 if (!cmd) { 239 ret = -ENOMEM; 240 goto out; 241 } 242 243 /* get role id */ 244 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES); 245 if (cmd->role_id >= WL12XX_MAX_ROLES) { 246 ret = -EBUSY; 247 goto out_free; 248 } 249 250 memcpy(cmd->mac_address, addr, ETH_ALEN); 251 cmd->role_type = role_type; 252 253 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0); 254 if (ret < 0) { 255 wl1271_error("failed to initiate cmd role enable"); 256 goto out_free; 257 } 258 259 __set_bit(cmd->role_id, wl->roles_map); 260 *role_id = cmd->role_id; 261 262 out_free: 263 kfree(cmd); 264 265 out: 266 return ret; 267 } 268 269 int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id) 270 { 271 struct wl12xx_cmd_role_disable *cmd; 272 int ret; 273 274 wl1271_debug(DEBUG_CMD, "cmd role disable"); 275 276 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID)) 277 return -ENOENT; 278 279 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 280 if (!cmd) { 281 ret = -ENOMEM; 282 goto out; 283 } 284 cmd->role_id = *role_id; 285 286 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0); 287 if (ret < 0) { 288 wl1271_error("failed to initiate cmd role disable"); 289 goto out_free; 290 } 291 292 __clear_bit(*role_id, wl->roles_map); 293 *role_id = WL12XX_INVALID_ROLE_ID; 294 295 out_free: 296 kfree(cmd); 297 298 out: 299 return ret; 300 } 301 302 static int wlcore_get_new_session_id(struct wl1271 *wl, u8 hlid) 303 { 304 if (wl->session_ids[hlid] >= SESSION_COUNTER_MAX) 305 wl->session_ids[hlid] = 0; 306 307 wl->session_ids[hlid]++; 308 309 return wl->session_ids[hlid]; 310 } 311 312 int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 313 { 314 unsigned long flags; 315 u8 link = find_first_zero_bit(wl->links_map, wl->num_links); 316 if (link >= wl->num_links) 317 return -EBUSY; 318 319 wl->session_ids[link] = wlcore_get_new_session_id(wl, link); 320 321 /* these bits are used by op_tx */ 322 spin_lock_irqsave(&wl->wl_lock, flags); 323 __set_bit(link, wl->links_map); 324 __set_bit(link, wlvif->links_map); 325 spin_unlock_irqrestore(&wl->wl_lock, flags); 326 327 /* 328 * take the last "freed packets" value from the current FW status. 329 * on recovery, we might not have fw_status yet, and 330 * tx_lnk_free_pkts will be NULL. check for it. 331 */ 332 if (wl->fw_status->counters.tx_lnk_free_pkts) 333 wl->links[link].prev_freed_pkts = 334 wl->fw_status->counters.tx_lnk_free_pkts[link]; 335 wl->links[link].wlvif = wlvif; 336 337 /* 338 * Take saved value for total freed packets from wlvif, in case this is 339 * recovery/resume 340 */ 341 if (wlvif->bss_type != BSS_TYPE_AP_BSS) 342 wl->links[link].total_freed_pkts = wlvif->total_freed_pkts; 343 344 *hlid = link; 345 346 wl->active_link_count++; 347 return 0; 348 } 349 350 void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 351 { 352 unsigned long flags; 353 354 if (*hlid == WL12XX_INVALID_LINK_ID) 355 return; 356 357 /* these bits are used by op_tx */ 358 spin_lock_irqsave(&wl->wl_lock, flags); 359 __clear_bit(*hlid, wl->links_map); 360 __clear_bit(*hlid, wlvif->links_map); 361 spin_unlock_irqrestore(&wl->wl_lock, flags); 362 363 wl->links[*hlid].allocated_pkts = 0; 364 wl->links[*hlid].prev_freed_pkts = 0; 365 wl->links[*hlid].ba_bitmap = 0; 366 eth_zero_addr(wl->links[*hlid].addr); 367 368 /* 369 * At this point op_tx() will not add more packets to the queues. We 370 * can purge them. 371 */ 372 wl1271_tx_reset_link_queues(wl, *hlid); 373 wl->links[*hlid].wlvif = NULL; 374 375 if (wlvif->bss_type == BSS_TYPE_AP_BSS && 376 *hlid == wlvif->ap.bcast_hlid) { 377 u32 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING; 378 /* 379 * save the total freed packets in the wlvif, in case this is 380 * recovery or suspend 381 */ 382 wlvif->total_freed_pkts = wl->links[*hlid].total_freed_pkts; 383 384 /* 385 * increment the initial seq number on recovery to account for 386 * transmitted packets that we haven't yet got in the FW status 387 */ 388 if (wlvif->encryption_type == KEY_GEM) 389 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING_GEM; 390 391 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) 392 wlvif->total_freed_pkts += sqn_padding; 393 } 394 395 wl->links[*hlid].total_freed_pkts = 0; 396 397 *hlid = WL12XX_INVALID_LINK_ID; 398 wl->active_link_count--; 399 WARN_ON_ONCE(wl->active_link_count < 0); 400 } 401 402 u8 wlcore_get_native_channel_type(u8 nl_channel_type) 403 { 404 switch (nl_channel_type) { 405 case NL80211_CHAN_NO_HT: 406 return WLCORE_CHAN_NO_HT; 407 case NL80211_CHAN_HT20: 408 return WLCORE_CHAN_HT20; 409 case NL80211_CHAN_HT40MINUS: 410 return WLCORE_CHAN_HT40MINUS; 411 case NL80211_CHAN_HT40PLUS: 412 return WLCORE_CHAN_HT40PLUS; 413 default: 414 WARN_ON(1); 415 return WLCORE_CHAN_NO_HT; 416 } 417 } 418 EXPORT_SYMBOL_GPL(wlcore_get_native_channel_type); 419 420 static int wl12xx_cmd_role_start_dev(struct wl1271 *wl, 421 struct wl12xx_vif *wlvif, 422 enum nl80211_band band, 423 int channel) 424 { 425 struct wl12xx_cmd_role_start *cmd; 426 int ret; 427 428 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 429 if (!cmd) { 430 ret = -ENOMEM; 431 goto out; 432 } 433 434 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id); 435 436 cmd->role_id = wlvif->dev_role_id; 437 if (band == NL80211_BAND_5GHZ) 438 cmd->band = WLCORE_BAND_5GHZ; 439 cmd->channel = channel; 440 441 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) { 442 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid); 443 if (ret) 444 goto out_free; 445 } 446 cmd->device.hlid = wlvif->dev_hlid; 447 cmd->device.session = wl->session_ids[wlvif->dev_hlid]; 448 449 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d", 450 cmd->role_id, cmd->device.hlid, cmd->device.session); 451 452 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 453 if (ret < 0) { 454 wl1271_error("failed to initiate cmd role enable"); 455 goto err_hlid; 456 } 457 458 goto out_free; 459 460 err_hlid: 461 /* clear links on error */ 462 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 463 464 out_free: 465 kfree(cmd); 466 467 out: 468 return ret; 469 } 470 471 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, 472 struct wl12xx_vif *wlvif) 473 { 474 struct wl12xx_cmd_role_stop *cmd; 475 int ret; 476 477 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID)) 478 return -EINVAL; 479 480 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 481 if (!cmd) { 482 ret = -ENOMEM; 483 goto out; 484 } 485 486 wl1271_debug(DEBUG_CMD, "cmd role stop dev"); 487 488 cmd->role_id = wlvif->dev_role_id; 489 cmd->disc_type = DISCONNECT_IMMEDIATE; 490 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 491 492 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 493 if (ret < 0) { 494 wl1271_error("failed to initiate cmd role stop"); 495 goto out_free; 496 } 497 498 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 499 500 out_free: 501 kfree(cmd); 502 503 out: 504 return ret; 505 } 506 507 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 508 { 509 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 510 struct wl12xx_cmd_role_start *cmd; 511 u32 supported_rates; 512 int ret; 513 514 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 515 if (!cmd) { 516 ret = -ENOMEM; 517 goto out; 518 } 519 520 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id); 521 522 cmd->role_id = wlvif->role_id; 523 if (wlvif->band == NL80211_BAND_5GHZ) 524 cmd->band = WLCORE_BAND_5GHZ; 525 cmd->channel = wlvif->channel; 526 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 527 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int); 528 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY; 529 cmd->sta.ssid_len = wlvif->ssid_len; 530 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len); 531 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN); 532 533 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES | 534 wlcore_hw_sta_get_ap_rate_mask(wl, wlvif); 535 if (wlvif->p2p) 536 supported_rates &= ~CONF_TX_CCK_RATES; 537 538 cmd->sta.local_rates = cpu_to_le32(supported_rates); 539 540 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 541 542 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 543 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 544 if (ret) 545 goto out_free; 546 } 547 cmd->sta.hlid = wlvif->sta.hlid; 548 cmd->sta.session = wl->session_ids[wlvif->sta.hlid]; 549 /* 550 * We don't have the correct remote rates in this stage. The 551 * rates will be reconfigured later, after association, if the 552 * firmware supports ACX_PEER_CAP. Otherwise, there's nothing 553 * we can do, so use all supported_rates here. 554 */ 555 cmd->sta.remote_rates = cpu_to_le32(supported_rates); 556 557 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 558 "basic_rate_set: 0x%x, remote_rates: 0x%x", 559 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 560 wlvif->basic_rate_set, wlvif->rate_set); 561 562 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 563 if (ret < 0) { 564 wl1271_error("failed to initiate cmd role start sta"); 565 goto err_hlid; 566 } 567 568 wlvif->sta.role_chan_type = wlvif->channel_type; 569 goto out_free; 570 571 err_hlid: 572 /* clear links on error. */ 573 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 574 575 out_free: 576 kfree(cmd); 577 578 out: 579 return ret; 580 } 581 582 /* use this function to stop ibss as well */ 583 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 584 { 585 struct wl12xx_cmd_role_stop *cmd; 586 int ret; 587 588 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)) 589 return -EINVAL; 590 591 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 592 if (!cmd) { 593 ret = -ENOMEM; 594 goto out; 595 } 596 597 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id); 598 599 cmd->role_id = wlvif->role_id; 600 cmd->disc_type = DISCONNECT_IMMEDIATE; 601 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 602 603 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 604 if (ret < 0) { 605 wl1271_error("failed to initiate cmd role stop sta"); 606 goto out_free; 607 } 608 609 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 610 611 out_free: 612 kfree(cmd); 613 614 out: 615 return ret; 616 } 617 618 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 619 { 620 struct wl12xx_cmd_role_start *cmd; 621 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 622 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 623 u32 supported_rates; 624 int ret; 625 626 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id); 627 628 /* If MESH --> ssid_len is always 0 */ 629 if (!ieee80211_vif_is_mesh(vif)) { 630 /* trying to use hidden SSID with an old hostapd version */ 631 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) { 632 wl1271_error("got a null SSID from beacon/bss"); 633 ret = -EINVAL; 634 goto out; 635 } 636 } 637 638 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 639 if (!cmd) { 640 ret = -ENOMEM; 641 goto out; 642 } 643 644 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid); 645 if (ret < 0) 646 goto out_free; 647 648 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid); 649 if (ret < 0) 650 goto out_free_global; 651 652 /* use the previous security seq, if this is a recovery/resume */ 653 wl->links[wlvif->ap.bcast_hlid].total_freed_pkts = 654 wlvif->total_freed_pkts; 655 656 cmd->role_id = wlvif->role_id; 657 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period); 658 cmd->ap.bss_index = WL1271_AP_BSS_INDEX; 659 cmd->ap.global_hlid = wlvif->ap.global_hlid; 660 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid; 661 cmd->ap.global_session_id = wl->session_ids[wlvif->ap.global_hlid]; 662 cmd->ap.bcast_session_id = wl->session_ids[wlvif->ap.bcast_hlid]; 663 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 664 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int); 665 cmd->ap.dtim_interval = bss_conf->dtim_period; 666 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP; 667 /* FIXME: Change when adding DFS */ 668 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */ 669 cmd->ap.wmm = wlvif->wmm_enabled; 670 cmd->channel = wlvif->channel; 671 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 672 673 if (!bss_conf->hidden_ssid) { 674 /* take the SSID from the beacon for backward compatibility */ 675 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC; 676 cmd->ap.ssid_len = wlvif->ssid_len; 677 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len); 678 } else { 679 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN; 680 cmd->ap.ssid_len = bss_conf->ssid_len; 681 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len); 682 } 683 684 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES | 685 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif); 686 if (wlvif->p2p) 687 supported_rates &= ~CONF_TX_CCK_RATES; 688 689 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x", 690 supported_rates); 691 692 cmd->ap.local_rates = cpu_to_le32(supported_rates); 693 694 switch (wlvif->band) { 695 case NL80211_BAND_2GHZ: 696 cmd->band = WLCORE_BAND_2_4GHZ; 697 break; 698 case NL80211_BAND_5GHZ: 699 cmd->band = WLCORE_BAND_5GHZ; 700 break; 701 default: 702 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band); 703 cmd->band = WLCORE_BAND_2_4GHZ; 704 break; 705 } 706 707 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 708 if (ret < 0) { 709 wl1271_error("failed to initiate cmd role start ap"); 710 goto out_free_bcast; 711 } 712 713 goto out_free; 714 715 out_free_bcast: 716 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 717 718 out_free_global: 719 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 720 721 out_free: 722 kfree(cmd); 723 724 out: 725 return ret; 726 } 727 728 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 729 { 730 struct wl12xx_cmd_role_stop *cmd; 731 int ret; 732 733 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 734 if (!cmd) { 735 ret = -ENOMEM; 736 goto out; 737 } 738 739 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id); 740 741 cmd->role_id = wlvif->role_id; 742 743 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 744 if (ret < 0) { 745 wl1271_error("failed to initiate cmd role stop ap"); 746 goto out_free; 747 } 748 749 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 750 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 751 752 out_free: 753 kfree(cmd); 754 755 out: 756 return ret; 757 } 758 759 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif) 760 { 761 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 762 struct wl12xx_cmd_role_start *cmd; 763 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 764 int ret; 765 766 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 767 if (!cmd) { 768 ret = -ENOMEM; 769 goto out; 770 } 771 772 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id); 773 774 cmd->role_id = wlvif->role_id; 775 if (wlvif->band == NL80211_BAND_5GHZ) 776 cmd->band = WLCORE_BAND_5GHZ; 777 cmd->channel = wlvif->channel; 778 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 779 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int); 780 cmd->ibss.dtim_interval = bss_conf->dtim_period; 781 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY; 782 cmd->ibss.ssid_len = wlvif->ssid_len; 783 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len); 784 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN); 785 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 786 787 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 788 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 789 if (ret) 790 goto out_free; 791 } 792 cmd->ibss.hlid = wlvif->sta.hlid; 793 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set); 794 795 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 796 "basic_rate_set: 0x%x, remote_rates: 0x%x", 797 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 798 wlvif->basic_rate_set, wlvif->rate_set); 799 800 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM", 801 vif->bss_conf.bssid); 802 803 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 804 if (ret < 0) { 805 wl1271_error("failed to initiate cmd role enable"); 806 goto err_hlid; 807 } 808 809 goto out_free; 810 811 err_hlid: 812 /* clear links on error. */ 813 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 814 815 out_free: 816 kfree(cmd); 817 818 out: 819 return ret; 820 } 821 822 823 /** 824 * send test command to firmware 825 * 826 * @wl: wl struct 827 * @buf: buffer containing the command, with all headers, must work with dma 828 * @len: length of the buffer 829 * @answer: is answer needed 830 */ 831 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer) 832 { 833 int ret; 834 size_t res_len = 0; 835 836 wl1271_debug(DEBUG_CMD, "cmd test"); 837 838 if (answer) 839 res_len = buf_len; 840 841 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len); 842 843 if (ret < 0) { 844 wl1271_warning("TEST command failed"); 845 return ret; 846 } 847 848 return ret; 849 } 850 EXPORT_SYMBOL_GPL(wl1271_cmd_test); 851 852 /** 853 * read acx from firmware 854 * 855 * @wl: wl struct 856 * @id: acx id 857 * @buf: buffer for the response, including all headers, must work with dma 858 * @len: length of buf 859 */ 860 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, 861 size_t cmd_len, size_t res_len) 862 { 863 struct acx_header *acx = buf; 864 int ret; 865 866 wl1271_debug(DEBUG_CMD, "cmd interrogate"); 867 868 acx->id = cpu_to_le16(id); 869 870 /* response payload length, does not include any headers */ 871 acx->len = cpu_to_le16(res_len - sizeof(*acx)); 872 873 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, cmd_len, res_len); 874 if (ret < 0) 875 wl1271_error("INTERROGATE command failed"); 876 877 return ret; 878 } 879 880 /** 881 * write acx value to firmware 882 * 883 * @wl: wl struct 884 * @id: acx id 885 * @buf: buffer containing acx, including all headers, must work with dma 886 * @len: length of buf 887 * @valid_rets: bitmap of valid cmd status codes (i.e. return values). 888 * return the cmd status on success. 889 */ 890 int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf, 891 size_t len, unsigned long valid_rets) 892 { 893 struct acx_header *acx = buf; 894 int ret; 895 896 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id); 897 898 if (WARN_ON_ONCE(len < sizeof(*acx))) 899 return -EIO; 900 901 acx->id = cpu_to_le16(id); 902 903 /* payload length, does not include any headers */ 904 acx->len = cpu_to_le16(len - sizeof(*acx)); 905 906 ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0, 907 valid_rets); 908 if (ret < 0) { 909 wl1271_warning("CONFIGURE command NOK"); 910 return ret; 911 } 912 913 return ret; 914 } 915 916 /* 917 * wrapper for wlcore_cmd_configure that accepts only success status. 918 * return 0 on success 919 */ 920 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len) 921 { 922 int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0); 923 924 if (ret < 0) 925 return ret; 926 return 0; 927 } 928 EXPORT_SYMBOL_GPL(wl1271_cmd_configure); 929 930 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable) 931 { 932 struct cmd_enabledisable_path *cmd; 933 int ret; 934 u16 cmd_rx, cmd_tx; 935 936 wl1271_debug(DEBUG_CMD, "cmd data path"); 937 938 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 939 if (!cmd) { 940 ret = -ENOMEM; 941 goto out; 942 } 943 944 /* the channel here is only used for calibration, so hardcoded to 1 */ 945 cmd->channel = 1; 946 947 if (enable) { 948 cmd_rx = CMD_ENABLE_RX; 949 cmd_tx = CMD_ENABLE_TX; 950 } else { 951 cmd_rx = CMD_DISABLE_RX; 952 cmd_tx = CMD_DISABLE_TX; 953 } 954 955 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0); 956 if (ret < 0) { 957 wl1271_error("rx %s cmd for channel %d failed", 958 enable ? "start" : "stop", cmd->channel); 959 goto out; 960 } 961 962 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d", 963 enable ? "start" : "stop", cmd->channel); 964 965 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0); 966 if (ret < 0) { 967 wl1271_error("tx %s cmd for channel %d failed", 968 enable ? "start" : "stop", cmd->channel); 969 goto out; 970 } 971 972 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d", 973 enable ? "start" : "stop", cmd->channel); 974 975 out: 976 kfree(cmd); 977 return ret; 978 } 979 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path); 980 981 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif, 982 u8 ps_mode, u16 auto_ps_timeout) 983 { 984 struct wl1271_cmd_ps_params *ps_params = NULL; 985 int ret = 0; 986 987 wl1271_debug(DEBUG_CMD, "cmd set ps mode"); 988 989 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL); 990 if (!ps_params) { 991 ret = -ENOMEM; 992 goto out; 993 } 994 995 ps_params->role_id = wlvif->role_id; 996 ps_params->ps_mode = ps_mode; 997 ps_params->auto_ps_timeout = auto_ps_timeout; 998 999 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params, 1000 sizeof(*ps_params), 0); 1001 if (ret < 0) { 1002 wl1271_error("cmd set_ps_mode failed"); 1003 goto out; 1004 } 1005 1006 out: 1007 kfree(ps_params); 1008 return ret; 1009 } 1010 1011 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id, 1012 u16 template_id, void *buf, size_t buf_len, 1013 int index, u32 rates) 1014 { 1015 struct wl1271_cmd_template_set *cmd; 1016 int ret = 0; 1017 1018 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)", 1019 template_id, role_id); 1020 1021 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE); 1022 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE); 1023 1024 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1025 if (!cmd) { 1026 ret = -ENOMEM; 1027 goto out; 1028 } 1029 1030 /* during initialization wlvif is NULL */ 1031 cmd->role_id = role_id; 1032 cmd->len = cpu_to_le16(buf_len); 1033 cmd->template_type = template_id; 1034 cmd->enabled_rates = cpu_to_le32(rates); 1035 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit; 1036 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit; 1037 cmd->index = index; 1038 1039 if (buf) 1040 memcpy(cmd->template_data, buf, buf_len); 1041 1042 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0); 1043 if (ret < 0) { 1044 wl1271_warning("cmd set_template failed: %d", ret); 1045 goto out_free; 1046 } 1047 1048 out_free: 1049 kfree(cmd); 1050 1051 out: 1052 return ret; 1053 } 1054 1055 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1056 { 1057 struct sk_buff *skb = NULL; 1058 int size; 1059 void *ptr; 1060 int ret = -ENOMEM; 1061 1062 1063 if (wlvif->bss_type == BSS_TYPE_IBSS) { 1064 size = sizeof(struct wl12xx_null_data_template); 1065 ptr = NULL; 1066 } else { 1067 skb = ieee80211_nullfunc_get(wl->hw, 1068 wl12xx_wlvif_to_vif(wlvif), 1069 false); 1070 if (!skb) 1071 goto out; 1072 size = skb->len; 1073 ptr = skb->data; 1074 } 1075 1076 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1077 CMD_TEMPL_NULL_DATA, ptr, size, 0, 1078 wlvif->basic_rate); 1079 1080 out: 1081 dev_kfree_skb(skb); 1082 if (ret) 1083 wl1271_warning("cmd build null data failed %d", ret); 1084 1085 return ret; 1086 1087 } 1088 1089 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, 1090 struct wl12xx_vif *wlvif) 1091 { 1092 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1093 struct sk_buff *skb = NULL; 1094 int ret = -ENOMEM; 1095 1096 skb = ieee80211_nullfunc_get(wl->hw, vif, false); 1097 if (!skb) 1098 goto out; 1099 1100 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV, 1101 skb->data, skb->len, 1102 wlvif->sta.klv_template_id, 1103 wlvif->basic_rate); 1104 1105 out: 1106 dev_kfree_skb(skb); 1107 if (ret) 1108 wl1271_warning("cmd build klv null data failed %d", ret); 1109 1110 return ret; 1111 1112 } 1113 1114 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1115 u16 aid) 1116 { 1117 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1118 struct sk_buff *skb; 1119 int ret = 0; 1120 1121 skb = ieee80211_pspoll_get(wl->hw, vif); 1122 if (!skb) 1123 goto out; 1124 1125 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1126 CMD_TEMPL_PS_POLL, skb->data, 1127 skb->len, 0, wlvif->basic_rate_set); 1128 1129 out: 1130 dev_kfree_skb(skb); 1131 return ret; 1132 } 1133 1134 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1135 u8 role_id, u8 band, 1136 const u8 *ssid, size_t ssid_len, 1137 const u8 *ie0, size_t ie0_len, const u8 *ie1, 1138 size_t ie1_len, bool sched_scan) 1139 { 1140 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1141 struct sk_buff *skb; 1142 int ret; 1143 u32 rate; 1144 u16 template_id_2_4 = wl->scan_templ_id_2_4; 1145 u16 template_id_5 = wl->scan_templ_id_5; 1146 1147 wl1271_debug(DEBUG_SCAN, "build probe request band %d", band); 1148 1149 skb = ieee80211_probereq_get(wl->hw, vif->addr, ssid, ssid_len, 1150 ie0_len + ie1_len); 1151 if (!skb) { 1152 ret = -ENOMEM; 1153 goto out; 1154 } 1155 if (ie0_len) 1156 skb_put_data(skb, ie0, ie0_len); 1157 if (ie1_len) 1158 skb_put_data(skb, ie1, ie1_len); 1159 1160 if (sched_scan && 1161 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) { 1162 template_id_2_4 = wl->sched_scan_templ_id_2_4; 1163 template_id_5 = wl->sched_scan_templ_id_5; 1164 } 1165 1166 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]); 1167 if (band == NL80211_BAND_2GHZ) 1168 ret = wl1271_cmd_template_set(wl, role_id, 1169 template_id_2_4, 1170 skb->data, skb->len, 0, rate); 1171 else 1172 ret = wl1271_cmd_template_set(wl, role_id, 1173 template_id_5, 1174 skb->data, skb->len, 0, rate); 1175 1176 out: 1177 dev_kfree_skb(skb); 1178 return ret; 1179 } 1180 EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req); 1181 1182 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl, 1183 struct wl12xx_vif *wlvif, 1184 struct sk_buff *skb) 1185 { 1186 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1187 int ret; 1188 u32 rate; 1189 1190 if (!skb) 1191 skb = ieee80211_ap_probereq_get(wl->hw, vif); 1192 if (!skb) 1193 goto out; 1194 1195 wl1271_debug(DEBUG_SCAN, "set ap probe request template"); 1196 1197 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]); 1198 if (wlvif->band == NL80211_BAND_2GHZ) 1199 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1200 CMD_TEMPL_CFG_PROBE_REQ_2_4, 1201 skb->data, skb->len, 0, rate); 1202 else 1203 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1204 CMD_TEMPL_CFG_PROBE_REQ_5, 1205 skb->data, skb->len, 0, rate); 1206 1207 if (ret < 0) 1208 wl1271_error("Unable to set ap probe request template."); 1209 1210 out: 1211 return skb; 1212 } 1213 1214 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1215 { 1216 int ret, extra = 0; 1217 u16 fc; 1218 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1219 struct sk_buff *skb; 1220 struct wl12xx_arp_rsp_template *tmpl; 1221 struct ieee80211_hdr_3addr *hdr; 1222 struct arphdr *arp_hdr; 1223 1224 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) + 1225 WL1271_EXTRA_SPACE_MAX); 1226 if (!skb) { 1227 wl1271_error("failed to allocate buffer for arp rsp template"); 1228 return -ENOMEM; 1229 } 1230 1231 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX); 1232 1233 tmpl = skb_put_zero(skb, sizeof(*tmpl)); 1234 1235 /* llc layer */ 1236 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header)); 1237 tmpl->llc_type = cpu_to_be16(ETH_P_ARP); 1238 1239 /* arp header */ 1240 arp_hdr = &tmpl->arp_hdr; 1241 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER); 1242 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP); 1243 arp_hdr->ar_hln = ETH_ALEN; 1244 arp_hdr->ar_pln = 4; 1245 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY); 1246 1247 /* arp payload */ 1248 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN); 1249 tmpl->sender_ip = wlvif->ip_addr; 1250 1251 /* encryption space */ 1252 switch (wlvif->encryption_type) { 1253 case KEY_TKIP: 1254 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) 1255 extra = WL1271_EXTRA_SPACE_TKIP; 1256 break; 1257 case KEY_AES: 1258 extra = WL1271_EXTRA_SPACE_AES; 1259 break; 1260 case KEY_NONE: 1261 case KEY_WEP: 1262 case KEY_GEM: 1263 extra = 0; 1264 break; 1265 default: 1266 wl1271_warning("Unknown encryption type: %d", 1267 wlvif->encryption_type); 1268 ret = -EINVAL; 1269 goto out; 1270 } 1271 1272 if (extra) { 1273 u8 *space = skb_push(skb, extra); 1274 memset(space, 0, extra); 1275 } 1276 1277 /* QoS header - BE */ 1278 if (wlvif->sta.qos) 1279 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16)); 1280 1281 /* mac80211 header */ 1282 hdr = skb_push(skb, sizeof(*hdr)); 1283 memset(hdr, 0, sizeof(*hdr)); 1284 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS; 1285 if (wlvif->sta.qos) 1286 fc |= IEEE80211_STYPE_QOS_DATA; 1287 else 1288 fc |= IEEE80211_STYPE_DATA; 1289 if (wlvif->encryption_type != KEY_NONE) 1290 fc |= IEEE80211_FCTL_PROTECTED; 1291 1292 hdr->frame_control = cpu_to_le16(fc); 1293 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN); 1294 memcpy(hdr->addr2, vif->addr, ETH_ALEN); 1295 eth_broadcast_addr(hdr->addr3); 1296 1297 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP, 1298 skb->data, skb->len, 0, 1299 wlvif->basic_rate); 1300 out: 1301 dev_kfree_skb(skb); 1302 return ret; 1303 } 1304 1305 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif) 1306 { 1307 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 1308 struct ieee80211_qos_hdr template; 1309 1310 memset(&template, 0, sizeof(template)); 1311 1312 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN); 1313 memcpy(template.addr2, vif->addr, ETH_ALEN); 1314 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN); 1315 1316 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 1317 IEEE80211_STYPE_QOS_NULLFUNC | 1318 IEEE80211_FCTL_TODS); 1319 1320 /* FIXME: not sure what priority to use here */ 1321 template.qos_ctrl = cpu_to_le16(0); 1322 1323 return wl1271_cmd_template_set(wl, wlvif->role_id, 1324 CMD_TEMPL_QOS_NULL_DATA, &template, 1325 sizeof(template), 0, 1326 wlvif->basic_rate); 1327 } 1328 1329 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid) 1330 { 1331 struct wl1271_cmd_set_keys *cmd; 1332 int ret = 0; 1333 1334 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id); 1335 1336 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1337 if (!cmd) { 1338 ret = -ENOMEM; 1339 goto out; 1340 } 1341 1342 cmd->hlid = hlid; 1343 cmd->key_id = id; 1344 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1345 cmd->key_action = cpu_to_le16(KEY_SET_ID); 1346 cmd->key_type = KEY_WEP; 1347 1348 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1349 if (ret < 0) { 1350 wl1271_warning("cmd set_default_wep_key failed: %d", ret); 1351 goto out; 1352 } 1353 1354 out: 1355 kfree(cmd); 1356 1357 return ret; 1358 } 1359 1360 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1361 u16 action, u8 id, u8 key_type, 1362 u8 key_size, const u8 *key, const u8 *addr, 1363 u32 tx_seq_32, u16 tx_seq_16) 1364 { 1365 struct wl1271_cmd_set_keys *cmd; 1366 int ret = 0; 1367 1368 /* hlid might have already been deleted */ 1369 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) 1370 return 0; 1371 1372 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1373 if (!cmd) { 1374 ret = -ENOMEM; 1375 goto out; 1376 } 1377 1378 cmd->hlid = wlvif->sta.hlid; 1379 1380 if (key_type == KEY_WEP) 1381 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1382 else if (is_broadcast_ether_addr(addr)) 1383 cmd->lid_key_type = BROADCAST_LID_TYPE; 1384 else 1385 cmd->lid_key_type = UNICAST_LID_TYPE; 1386 1387 cmd->key_action = cpu_to_le16(action); 1388 cmd->key_size = key_size; 1389 cmd->key_type = key_type; 1390 1391 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1392 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1393 1394 cmd->key_id = id; 1395 1396 if (key_type == KEY_TKIP) { 1397 /* 1398 * We get the key in the following form: 1399 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1400 * but the target is expecting: 1401 * TKIP - RX MIC - TX MIC 1402 */ 1403 memcpy(cmd->key, key, 16); 1404 memcpy(cmd->key + 16, key + 24, 8); 1405 memcpy(cmd->key + 24, key + 16, 8); 1406 1407 } else { 1408 memcpy(cmd->key, key, key_size); 1409 } 1410 1411 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd)); 1412 1413 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1414 if (ret < 0) { 1415 wl1271_warning("could not set keys"); 1416 goto out; 1417 } 1418 1419 out: 1420 kfree(cmd); 1421 1422 return ret; 1423 } 1424 1425 /* 1426 * TODO: merge with sta/ibss into 1 set_key function. 1427 * note there are slight diffs 1428 */ 1429 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1430 u16 action, u8 id, u8 key_type, 1431 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32, 1432 u16 tx_seq_16, bool is_pairwise) 1433 { 1434 struct wl1271_cmd_set_keys *cmd; 1435 int ret = 0; 1436 u8 lid_type; 1437 1438 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1439 if (!cmd) 1440 return -ENOMEM; 1441 1442 if (hlid == wlvif->ap.bcast_hlid) { 1443 if (key_type == KEY_WEP) 1444 lid_type = WEP_DEFAULT_LID_TYPE; 1445 else 1446 lid_type = BROADCAST_LID_TYPE; 1447 } else if (is_pairwise) { 1448 lid_type = UNICAST_LID_TYPE; 1449 } else { 1450 lid_type = BROADCAST_LID_TYPE; 1451 } 1452 1453 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d" 1454 " hlid: %d", (int)action, (int)id, (int)lid_type, 1455 (int)key_type, (int)hlid); 1456 1457 cmd->lid_key_type = lid_type; 1458 cmd->hlid = hlid; 1459 cmd->key_action = cpu_to_le16(action); 1460 cmd->key_size = key_size; 1461 cmd->key_type = key_type; 1462 cmd->key_id = id; 1463 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1464 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1465 1466 if (key_type == KEY_TKIP) { 1467 /* 1468 * We get the key in the following form: 1469 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1470 * but the target is expecting: 1471 * TKIP - RX MIC - TX MIC 1472 */ 1473 memcpy(cmd->key, key, 16); 1474 memcpy(cmd->key + 16, key + 24, 8); 1475 memcpy(cmd->key + 24, key + 16, 8); 1476 } else { 1477 memcpy(cmd->key, key, key_size); 1478 } 1479 1480 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd)); 1481 1482 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1483 if (ret < 0) { 1484 wl1271_warning("could not set ap keys"); 1485 goto out; 1486 } 1487 1488 out: 1489 kfree(cmd); 1490 return ret; 1491 } 1492 1493 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1494 u8 hlid) 1495 { 1496 struct wl12xx_cmd_set_peer_state *cmd; 1497 int ret = 0; 1498 1499 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid); 1500 1501 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1502 if (!cmd) { 1503 ret = -ENOMEM; 1504 goto out; 1505 } 1506 1507 cmd->hlid = hlid; 1508 cmd->state = WL1271_CMD_STA_STATE_CONNECTED; 1509 1510 /* wmm param is valid only for station role */ 1511 if (wlvif->bss_type == BSS_TYPE_STA_BSS) 1512 cmd->wmm = wlvif->wmm_enabled; 1513 1514 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0); 1515 if (ret < 0) { 1516 wl1271_error("failed to send set peer state command"); 1517 goto out_free; 1518 } 1519 1520 out_free: 1521 kfree(cmd); 1522 1523 out: 1524 return ret; 1525 } 1526 1527 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1528 struct ieee80211_sta *sta, u8 hlid) 1529 { 1530 struct wl12xx_cmd_add_peer *cmd; 1531 int i, ret; 1532 u32 sta_rates; 1533 1534 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid); 1535 1536 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1537 if (!cmd) { 1538 ret = -ENOMEM; 1539 goto out; 1540 } 1541 1542 memcpy(cmd->addr, sta->addr, ETH_ALEN); 1543 cmd->bss_index = WL1271_AP_BSS_INDEX; 1544 cmd->aid = sta->aid; 1545 cmd->hlid = hlid; 1546 cmd->sp_len = sta->max_sp; 1547 cmd->wmm = sta->wme ? 1 : 0; 1548 cmd->session_id = wl->session_ids[hlid]; 1549 cmd->role_id = wlvif->role_id; 1550 1551 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++) 1552 if (sta->wme && (sta->uapsd_queues & BIT(i))) 1553 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1554 WL1271_PSD_UPSD_TRIGGER; 1555 else 1556 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1557 WL1271_PSD_LEGACY; 1558 1559 1560 sta_rates = sta->supp_rates[wlvif->band]; 1561 if (sta->ht_cap.ht_supported) 1562 sta_rates |= 1563 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) | 1564 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET); 1565 1566 cmd->supported_rates = 1567 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates, 1568 wlvif->band)); 1569 1570 if (!cmd->supported_rates) { 1571 wl1271_debug(DEBUG_CMD, 1572 "peer has no supported rates yet, configuring basic rates: 0x%x", 1573 wlvif->basic_rate_set); 1574 cmd->supported_rates = cpu_to_le32(wlvif->basic_rate_set); 1575 } 1576 1577 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x", 1578 cmd->supported_rates, sta->uapsd_queues); 1579 1580 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0); 1581 if (ret < 0) { 1582 wl1271_error("failed to initiate cmd add peer"); 1583 goto out_free; 1584 } 1585 1586 out_free: 1587 kfree(cmd); 1588 1589 out: 1590 return ret; 1591 } 1592 1593 int wl12xx_cmd_remove_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1594 u8 hlid) 1595 { 1596 struct wl12xx_cmd_remove_peer *cmd; 1597 int ret; 1598 bool timeout = false; 1599 1600 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid); 1601 1602 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1603 if (!cmd) { 1604 ret = -ENOMEM; 1605 goto out; 1606 } 1607 1608 cmd->hlid = hlid; 1609 /* We never send a deauth, mac80211 is in charge of this */ 1610 cmd->reason_opcode = 0; 1611 cmd->send_deauth_flag = 0; 1612 cmd->role_id = wlvif->role_id; 1613 1614 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0); 1615 if (ret < 0) { 1616 wl1271_error("failed to initiate cmd remove peer"); 1617 goto out_free; 1618 } 1619 1620 ret = wl->ops->wait_for_event(wl, 1621 WLCORE_EVENT_PEER_REMOVE_COMPLETE, 1622 &timeout); 1623 1624 /* 1625 * We are ok with a timeout here. The event is sometimes not sent 1626 * due to a firmware bug. In case of another error (like SDIO timeout) 1627 * queue a recovery. 1628 */ 1629 if (ret) 1630 wl12xx_queue_recovery_work(wl); 1631 1632 out_free: 1633 kfree(cmd); 1634 1635 out: 1636 return ret; 1637 } 1638 1639 static int wlcore_get_reg_conf_ch_idx(enum nl80211_band band, u16 ch) 1640 { 1641 /* 1642 * map the given band/channel to the respective predefined 1643 * bit expected by the fw 1644 */ 1645 switch (band) { 1646 case NL80211_BAND_2GHZ: 1647 /* channels 1..14 are mapped to 0..13 */ 1648 if (ch >= 1 && ch <= 14) 1649 return ch - 1; 1650 break; 1651 case NL80211_BAND_5GHZ: 1652 switch (ch) { 1653 case 8 ... 16: 1654 /* channels 8,12,16 are mapped to 18,19,20 */ 1655 return 18 + (ch-8)/4; 1656 case 34 ... 48: 1657 /* channels 34,36..48 are mapped to 21..28 */ 1658 return 21 + (ch-34)/2; 1659 case 52 ... 64: 1660 /* channels 52,56..64 are mapped to 29..32 */ 1661 return 29 + (ch-52)/4; 1662 case 100 ... 140: 1663 /* channels 100,104..140 are mapped to 33..43 */ 1664 return 33 + (ch-100)/4; 1665 case 149 ... 165: 1666 /* channels 149,153..165 are mapped to 44..48 */ 1667 return 44 + (ch-149)/4; 1668 default: 1669 break; 1670 } 1671 break; 1672 default: 1673 break; 1674 } 1675 1676 wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch); 1677 return -1; 1678 } 1679 1680 void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel, 1681 enum nl80211_band band) 1682 { 1683 int ch_bit_idx = 0; 1684 1685 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF)) 1686 return; 1687 1688 ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel); 1689 1690 if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS) 1691 __set_bit_le(ch_bit_idx, (long *)wl->reg_ch_conf_pending); 1692 } 1693 1694 int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl) 1695 { 1696 struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL; 1697 int ret = 0, i, b, ch_bit_idx; 1698 __le32 tmp_ch_bitmap[2] __aligned(sizeof(unsigned long)); 1699 struct wiphy *wiphy = wl->hw->wiphy; 1700 struct ieee80211_supported_band *band; 1701 bool timeout = false; 1702 1703 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF)) 1704 return 0; 1705 1706 wl1271_debug(DEBUG_CMD, "cmd reg domain config"); 1707 1708 memcpy(tmp_ch_bitmap, wl->reg_ch_conf_pending, sizeof(tmp_ch_bitmap)); 1709 1710 for (b = NL80211_BAND_2GHZ; b <= NL80211_BAND_5GHZ; b++) { 1711 band = wiphy->bands[b]; 1712 for (i = 0; i < band->n_channels; i++) { 1713 struct ieee80211_channel *channel = &band->channels[i]; 1714 u16 ch = channel->hw_value; 1715 u32 flags = channel->flags; 1716 1717 if (flags & (IEEE80211_CHAN_DISABLED | 1718 IEEE80211_CHAN_NO_IR)) 1719 continue; 1720 1721 if ((flags & IEEE80211_CHAN_RADAR) && 1722 channel->dfs_state != NL80211_DFS_AVAILABLE) 1723 continue; 1724 1725 ch_bit_idx = wlcore_get_reg_conf_ch_idx(b, ch); 1726 if (ch_bit_idx < 0) 1727 continue; 1728 1729 __set_bit_le(ch_bit_idx, (long *)tmp_ch_bitmap); 1730 } 1731 } 1732 1733 if (!memcmp(tmp_ch_bitmap, wl->reg_ch_conf_last, sizeof(tmp_ch_bitmap))) 1734 goto out; 1735 1736 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1737 if (!cmd) { 1738 ret = -ENOMEM; 1739 goto out; 1740 } 1741 1742 cmd->ch_bit_map1 = tmp_ch_bitmap[0]; 1743 cmd->ch_bit_map2 = tmp_ch_bitmap[1]; 1744 cmd->dfs_region = wl->dfs_region; 1745 1746 wl1271_debug(DEBUG_CMD, 1747 "cmd reg domain bitmap1: 0x%08x, bitmap2: 0x%08x", 1748 cmd->ch_bit_map1, cmd->ch_bit_map2); 1749 1750 ret = wl1271_cmd_send(wl, CMD_DFS_CHANNEL_CONFIG, cmd, sizeof(*cmd), 0); 1751 if (ret < 0) { 1752 wl1271_error("failed to send reg domain dfs config"); 1753 goto out; 1754 } 1755 1756 ret = wl->ops->wait_for_event(wl, 1757 WLCORE_EVENT_DFS_CONFIG_COMPLETE, 1758 &timeout); 1759 if (ret < 0 || timeout) { 1760 wl1271_error("reg domain conf %serror", 1761 timeout ? "completion " : ""); 1762 ret = timeout ? -ETIMEDOUT : ret; 1763 goto out; 1764 } 1765 1766 memcpy(wl->reg_ch_conf_last, tmp_ch_bitmap, sizeof(tmp_ch_bitmap)); 1767 memset(wl->reg_ch_conf_pending, 0, sizeof(wl->reg_ch_conf_pending)); 1768 1769 out: 1770 kfree(cmd); 1771 return ret; 1772 } 1773 1774 int wl12xx_cmd_config_fwlog(struct wl1271 *wl) 1775 { 1776 struct wl12xx_cmd_config_fwlog *cmd; 1777 int ret = 0; 1778 1779 wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); 1780 1781 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1782 if (!cmd) { 1783 ret = -ENOMEM; 1784 goto out; 1785 } 1786 1787 cmd->logger_mode = wl->conf.fwlog.mode; 1788 cmd->log_severity = wl->conf.fwlog.severity; 1789 cmd->timestamp = wl->conf.fwlog.timestamp; 1790 cmd->output = wl->conf.fwlog.output; 1791 cmd->threshold = wl->conf.fwlog.threshold; 1792 1793 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); 1794 if (ret < 0) { 1795 wl1271_error("failed to send config firmware logger command"); 1796 goto out_free; 1797 } 1798 1799 out_free: 1800 kfree(cmd); 1801 1802 out: 1803 return ret; 1804 } 1805 1806 int wl12xx_cmd_start_fwlog(struct wl1271 *wl) 1807 { 1808 struct wl12xx_cmd_start_fwlog *cmd; 1809 int ret = 0; 1810 1811 wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); 1812 1813 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1814 if (!cmd) { 1815 ret = -ENOMEM; 1816 goto out; 1817 } 1818 1819 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); 1820 if (ret < 0) { 1821 wl1271_error("failed to send start firmware logger command"); 1822 goto out_free; 1823 } 1824 1825 out_free: 1826 kfree(cmd); 1827 1828 out: 1829 return ret; 1830 } 1831 1832 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) 1833 { 1834 struct wl12xx_cmd_stop_fwlog *cmd; 1835 int ret = 0; 1836 1837 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); 1838 1839 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1840 if (!cmd) { 1841 ret = -ENOMEM; 1842 goto out; 1843 } 1844 1845 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); 1846 if (ret < 0) { 1847 wl1271_error("failed to send stop firmware logger command"); 1848 goto out_free; 1849 } 1850 1851 out_free: 1852 kfree(cmd); 1853 1854 out: 1855 return ret; 1856 } 1857 1858 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1859 u8 role_id, enum nl80211_band band, u8 channel) 1860 { 1861 struct wl12xx_cmd_roc *cmd; 1862 int ret = 0; 1863 1864 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id); 1865 1866 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID)) 1867 return -EINVAL; 1868 1869 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1870 if (!cmd) { 1871 ret = -ENOMEM; 1872 goto out; 1873 } 1874 1875 cmd->role_id = role_id; 1876 cmd->channel = channel; 1877 switch (band) { 1878 case NL80211_BAND_2GHZ: 1879 cmd->band = WLCORE_BAND_2_4GHZ; 1880 break; 1881 case NL80211_BAND_5GHZ: 1882 cmd->band = WLCORE_BAND_5GHZ; 1883 break; 1884 default: 1885 wl1271_error("roc - unknown band: %d", (int)wlvif->band); 1886 ret = -EINVAL; 1887 goto out_free; 1888 } 1889 1890 1891 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0); 1892 if (ret < 0) { 1893 wl1271_error("failed to send ROC command"); 1894 goto out_free; 1895 } 1896 1897 out_free: 1898 kfree(cmd); 1899 1900 out: 1901 return ret; 1902 } 1903 1904 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id) 1905 { 1906 struct wl12xx_cmd_croc *cmd; 1907 int ret = 0; 1908 1909 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id); 1910 1911 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1912 if (!cmd) { 1913 ret = -ENOMEM; 1914 goto out; 1915 } 1916 cmd->role_id = role_id; 1917 1918 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd, 1919 sizeof(*cmd), 0); 1920 if (ret < 0) { 1921 wl1271_error("failed to send ROC command"); 1922 goto out_free; 1923 } 1924 1925 out_free: 1926 kfree(cmd); 1927 1928 out: 1929 return ret; 1930 } 1931 1932 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id, 1933 enum nl80211_band band, u8 channel) 1934 { 1935 int ret = 0; 1936 1937 if (WARN_ON(test_bit(role_id, wl->roc_map))) 1938 return 0; 1939 1940 ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel); 1941 if (ret < 0) 1942 goto out; 1943 1944 __set_bit(role_id, wl->roc_map); 1945 out: 1946 return ret; 1947 } 1948 1949 int wl12xx_croc(struct wl1271 *wl, u8 role_id) 1950 { 1951 int ret = 0; 1952 1953 if (WARN_ON(!test_bit(role_id, wl->roc_map))) 1954 return 0; 1955 1956 ret = wl12xx_cmd_croc(wl, role_id); 1957 if (ret < 0) 1958 goto out; 1959 1960 __clear_bit(role_id, wl->roc_map); 1961 1962 /* 1963 * Rearm the tx watchdog when removing the last ROC. This prevents 1964 * recoveries due to just finished ROCs - when Tx hasn't yet had 1965 * a chance to get out. 1966 */ 1967 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) 1968 wl12xx_rearm_tx_watchdog_locked(wl); 1969 out: 1970 return ret; 1971 } 1972 1973 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1974 { 1975 struct wl12xx_cmd_stop_channel_switch *cmd; 1976 int ret; 1977 1978 wl1271_debug(DEBUG_ACX, "cmd stop channel switch"); 1979 1980 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1981 if (!cmd) { 1982 ret = -ENOMEM; 1983 goto out; 1984 } 1985 1986 cmd->role_id = wlvif->role_id; 1987 1988 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0); 1989 if (ret < 0) { 1990 wl1271_error("failed to stop channel switch command"); 1991 goto out_free; 1992 } 1993 1994 out_free: 1995 kfree(cmd); 1996 1997 out: 1998 return ret; 1999 } 2000 2001 /* start dev role and roc on its channel */ 2002 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif, 2003 enum nl80211_band band, int channel) 2004 { 2005 int ret; 2006 2007 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 2008 wlvif->bss_type == BSS_TYPE_IBSS))) 2009 return -EINVAL; 2010 2011 /* the dev role is already started for p2p mgmt interfaces */ 2012 if (!wlcore_is_p2p_mgmt(wlvif)) { 2013 ret = wl12xx_cmd_role_enable(wl, 2014 wl12xx_wlvif_to_vif(wlvif)->addr, 2015 WL1271_ROLE_DEVICE, 2016 &wlvif->dev_role_id); 2017 if (ret < 0) 2018 goto out; 2019 } 2020 2021 ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel); 2022 if (ret < 0) 2023 goto out_disable; 2024 2025 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel); 2026 if (ret < 0) 2027 goto out_stop; 2028 2029 return 0; 2030 2031 out_stop: 2032 wl12xx_cmd_role_stop_dev(wl, wlvif); 2033 out_disable: 2034 if (!wlcore_is_p2p_mgmt(wlvif)) 2035 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 2036 out: 2037 return ret; 2038 } 2039 2040 /* croc dev hlid, and stop the role */ 2041 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 2042 { 2043 int ret; 2044 2045 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 2046 wlvif->bss_type == BSS_TYPE_IBSS))) 2047 return -EINVAL; 2048 2049 /* flush all pending packets */ 2050 ret = wlcore_tx_work_locked(wl); 2051 if (ret < 0) 2052 goto out; 2053 2054 if (test_bit(wlvif->dev_role_id, wl->roc_map)) { 2055 ret = wl12xx_croc(wl, wlvif->dev_role_id); 2056 if (ret < 0) 2057 goto out; 2058 } 2059 2060 ret = wl12xx_cmd_role_stop_dev(wl, wlvif); 2061 if (ret < 0) 2062 goto out; 2063 2064 if (!wlcore_is_p2p_mgmt(wlvif)) { 2065 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 2066 if (ret < 0) 2067 goto out; 2068 } 2069 2070 out: 2071 return ret; 2072 } 2073 2074 int wlcore_cmd_generic_cfg(struct wl1271 *wl, struct wl12xx_vif *wlvif, 2075 u8 feature, u8 enable, u8 value) 2076 { 2077 struct wlcore_cmd_generic_cfg *cmd; 2078 int ret; 2079 2080 wl1271_debug(DEBUG_CMD, 2081 "cmd generic cfg (role %d feature %d enable %d value %d)", 2082 wlvif->role_id, feature, enable, value); 2083 2084 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 2085 if (!cmd) 2086 return -ENOMEM; 2087 2088 cmd->role_id = wlvif->role_id; 2089 cmd->feature = feature; 2090 cmd->enable = enable; 2091 cmd->value = value; 2092 2093 ret = wl1271_cmd_send(wl, CMD_GENERIC_CFG, cmd, sizeof(*cmd), 0); 2094 if (ret < 0) { 2095 wl1271_error("failed to send generic cfg command"); 2096 goto out_free; 2097 } 2098 out_free: 2099 kfree(cmd); 2100 return ret; 2101 } 2102 EXPORT_SYMBOL_GPL(wlcore_cmd_generic_cfg); 2103