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 * wl1271_cmd_test - send test command to firmware 825 * 826 * @wl: wl struct 827 * @buf: buffer containing the command, with all headers, must work with dma 828 * @buf_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 * wl1271_cmd_interrogate - 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 * @cmd_len: length of command 859 * @res_len: length of payload 860 */ 861 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, 862 size_t cmd_len, size_t res_len) 863 { 864 struct acx_header *acx = buf; 865 int ret; 866 867 wl1271_debug(DEBUG_CMD, "cmd interrogate"); 868 869 acx->id = cpu_to_le16(id); 870 871 /* response payload length, does not include any headers */ 872 acx->len = cpu_to_le16(res_len - sizeof(*acx)); 873 874 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, cmd_len, res_len); 875 if (ret < 0) 876 wl1271_error("INTERROGATE command failed"); 877 878 return ret; 879 } 880 881 /** 882 * wlcore_cmd_configure_failsafe - write acx value to firmware 883 * 884 * @wl: wl struct 885 * @id: acx id 886 * @buf: buffer containing acx, including all headers, must work with dma 887 * @len: length of buf 888 * @valid_rets: bitmap of valid cmd status codes (i.e. return values). 889 * return the cmd status on success. 890 */ 891 int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf, 892 size_t len, unsigned long valid_rets) 893 { 894 struct acx_header *acx = buf; 895 int ret; 896 897 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id); 898 899 if (WARN_ON_ONCE(len < sizeof(*acx))) 900 return -EIO; 901 902 acx->id = cpu_to_le16(id); 903 904 /* payload length, does not include any headers */ 905 acx->len = cpu_to_le16(len - sizeof(*acx)); 906 907 ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0, 908 valid_rets); 909 if (ret < 0) { 910 wl1271_warning("CONFIGURE command NOK"); 911 return ret; 912 } 913 914 return ret; 915 } 916 917 /* 918 * wrapper for wlcore_cmd_configure that accepts only success status. 919 * return 0 on success 920 */ 921 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len) 922 { 923 int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0); 924 925 if (ret < 0) 926 return ret; 927 return 0; 928 } 929 EXPORT_SYMBOL_GPL(wl1271_cmd_configure); 930 931 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable) 932 { 933 struct cmd_enabledisable_path *cmd; 934 int ret; 935 u16 cmd_rx, cmd_tx; 936 937 wl1271_debug(DEBUG_CMD, "cmd data path"); 938 939 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 940 if (!cmd) { 941 ret = -ENOMEM; 942 goto out; 943 } 944 945 /* the channel here is only used for calibration, so hardcoded to 1 */ 946 cmd->channel = 1; 947 948 if (enable) { 949 cmd_rx = CMD_ENABLE_RX; 950 cmd_tx = CMD_ENABLE_TX; 951 } else { 952 cmd_rx = CMD_DISABLE_RX; 953 cmd_tx = CMD_DISABLE_TX; 954 } 955 956 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0); 957 if (ret < 0) { 958 wl1271_error("rx %s cmd for channel %d failed", 959 enable ? "start" : "stop", cmd->channel); 960 goto out; 961 } 962 963 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d", 964 enable ? "start" : "stop", cmd->channel); 965 966 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0); 967 if (ret < 0) { 968 wl1271_error("tx %s cmd for channel %d failed", 969 enable ? "start" : "stop", cmd->channel); 970 goto out; 971 } 972 973 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d", 974 enable ? "start" : "stop", cmd->channel); 975 976 out: 977 kfree(cmd); 978 return ret; 979 } 980 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path); 981 982 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif, 983 u8 ps_mode, u16 auto_ps_timeout) 984 { 985 struct wl1271_cmd_ps_params *ps_params = NULL; 986 int ret = 0; 987 988 wl1271_debug(DEBUG_CMD, "cmd set ps mode"); 989 990 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL); 991 if (!ps_params) { 992 ret = -ENOMEM; 993 goto out; 994 } 995 996 ps_params->role_id = wlvif->role_id; 997 ps_params->ps_mode = ps_mode; 998 ps_params->auto_ps_timeout = auto_ps_timeout; 999 1000 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params, 1001 sizeof(*ps_params), 0); 1002 if (ret < 0) { 1003 wl1271_error("cmd set_ps_mode failed"); 1004 goto out; 1005 } 1006 1007 out: 1008 kfree(ps_params); 1009 return ret; 1010 } 1011 1012 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id, 1013 u16 template_id, void *buf, size_t buf_len, 1014 int index, u32 rates) 1015 { 1016 struct wl1271_cmd_template_set *cmd; 1017 int ret = 0; 1018 1019 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)", 1020 template_id, role_id); 1021 1022 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE); 1023 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE); 1024 1025 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1026 if (!cmd) { 1027 ret = -ENOMEM; 1028 goto out; 1029 } 1030 1031 /* during initialization wlvif is NULL */ 1032 cmd->role_id = role_id; 1033 cmd->len = cpu_to_le16(buf_len); 1034 cmd->template_type = template_id; 1035 cmd->enabled_rates = cpu_to_le32(rates); 1036 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit; 1037 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit; 1038 cmd->index = index; 1039 1040 if (buf) 1041 memcpy(cmd->template_data, buf, buf_len); 1042 1043 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0); 1044 if (ret < 0) { 1045 wl1271_warning("cmd set_template failed: %d", ret); 1046 goto out_free; 1047 } 1048 1049 out_free: 1050 kfree(cmd); 1051 1052 out: 1053 return ret; 1054 } 1055 1056 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1057 { 1058 struct sk_buff *skb = NULL; 1059 int size; 1060 void *ptr; 1061 int ret = -ENOMEM; 1062 1063 1064 if (wlvif->bss_type == BSS_TYPE_IBSS) { 1065 size = sizeof(struct wl12xx_null_data_template); 1066 ptr = NULL; 1067 } else { 1068 skb = ieee80211_nullfunc_get(wl->hw, 1069 wl12xx_wlvif_to_vif(wlvif), 1070 false); 1071 if (!skb) 1072 goto out; 1073 size = skb->len; 1074 ptr = skb->data; 1075 } 1076 1077 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1078 CMD_TEMPL_NULL_DATA, ptr, size, 0, 1079 wlvif->basic_rate); 1080 1081 out: 1082 dev_kfree_skb(skb); 1083 if (ret) 1084 wl1271_warning("cmd build null data failed %d", ret); 1085 1086 return ret; 1087 1088 } 1089 1090 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, 1091 struct wl12xx_vif *wlvif) 1092 { 1093 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1094 struct sk_buff *skb = NULL; 1095 int ret = -ENOMEM; 1096 1097 skb = ieee80211_nullfunc_get(wl->hw, vif, false); 1098 if (!skb) 1099 goto out; 1100 1101 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV, 1102 skb->data, skb->len, 1103 wlvif->sta.klv_template_id, 1104 wlvif->basic_rate); 1105 1106 out: 1107 dev_kfree_skb(skb); 1108 if (ret) 1109 wl1271_warning("cmd build klv null data failed %d", ret); 1110 1111 return ret; 1112 1113 } 1114 1115 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1116 u16 aid) 1117 { 1118 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1119 struct sk_buff *skb; 1120 int ret = 0; 1121 1122 skb = ieee80211_pspoll_get(wl->hw, vif); 1123 if (!skb) 1124 goto out; 1125 1126 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1127 CMD_TEMPL_PS_POLL, skb->data, 1128 skb->len, 0, wlvif->basic_rate_set); 1129 1130 out: 1131 dev_kfree_skb(skb); 1132 return ret; 1133 } 1134 1135 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1136 u8 role_id, u8 band, 1137 const u8 *ssid, size_t ssid_len, 1138 const u8 *ie0, size_t ie0_len, const u8 *ie1, 1139 size_t ie1_len, bool sched_scan) 1140 { 1141 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1142 struct sk_buff *skb; 1143 int ret; 1144 u32 rate; 1145 u16 template_id_2_4 = wl->scan_templ_id_2_4; 1146 u16 template_id_5 = wl->scan_templ_id_5; 1147 1148 wl1271_debug(DEBUG_SCAN, "build probe request band %d", band); 1149 1150 skb = ieee80211_probereq_get(wl->hw, vif->addr, ssid, ssid_len, 1151 ie0_len + ie1_len); 1152 if (!skb) { 1153 ret = -ENOMEM; 1154 goto out; 1155 } 1156 if (ie0_len) 1157 skb_put_data(skb, ie0, ie0_len); 1158 if (ie1_len) 1159 skb_put_data(skb, ie1, ie1_len); 1160 1161 if (sched_scan && 1162 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) { 1163 template_id_2_4 = wl->sched_scan_templ_id_2_4; 1164 template_id_5 = wl->sched_scan_templ_id_5; 1165 } 1166 1167 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]); 1168 if (band == NL80211_BAND_2GHZ) 1169 ret = wl1271_cmd_template_set(wl, role_id, 1170 template_id_2_4, 1171 skb->data, skb->len, 0, rate); 1172 else 1173 ret = wl1271_cmd_template_set(wl, role_id, 1174 template_id_5, 1175 skb->data, skb->len, 0, rate); 1176 1177 out: 1178 dev_kfree_skb(skb); 1179 return ret; 1180 } 1181 EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req); 1182 1183 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl, 1184 struct wl12xx_vif *wlvif, 1185 struct sk_buff *skb) 1186 { 1187 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1188 int ret; 1189 u32 rate; 1190 1191 if (!skb) 1192 skb = ieee80211_ap_probereq_get(wl->hw, vif); 1193 if (!skb) 1194 goto out; 1195 1196 wl1271_debug(DEBUG_SCAN, "set ap probe request template"); 1197 1198 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]); 1199 if (wlvif->band == NL80211_BAND_2GHZ) 1200 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1201 CMD_TEMPL_CFG_PROBE_REQ_2_4, 1202 skb->data, skb->len, 0, rate); 1203 else 1204 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1205 CMD_TEMPL_CFG_PROBE_REQ_5, 1206 skb->data, skb->len, 0, rate); 1207 1208 if (ret < 0) 1209 wl1271_error("Unable to set ap probe request template."); 1210 1211 out: 1212 return skb; 1213 } 1214 1215 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1216 { 1217 int ret, extra = 0; 1218 u16 fc; 1219 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1220 struct sk_buff *skb; 1221 struct wl12xx_arp_rsp_template *tmpl; 1222 struct ieee80211_hdr_3addr *hdr; 1223 struct arphdr *arp_hdr; 1224 1225 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) + 1226 WL1271_EXTRA_SPACE_MAX); 1227 if (!skb) { 1228 wl1271_error("failed to allocate buffer for arp rsp template"); 1229 return -ENOMEM; 1230 } 1231 1232 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX); 1233 1234 tmpl = skb_put_zero(skb, sizeof(*tmpl)); 1235 1236 /* llc layer */ 1237 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header)); 1238 tmpl->llc_type = cpu_to_be16(ETH_P_ARP); 1239 1240 /* arp header */ 1241 arp_hdr = &tmpl->arp_hdr; 1242 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER); 1243 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP); 1244 arp_hdr->ar_hln = ETH_ALEN; 1245 arp_hdr->ar_pln = 4; 1246 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY); 1247 1248 /* arp payload */ 1249 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN); 1250 tmpl->sender_ip = wlvif->ip_addr; 1251 1252 /* encryption space */ 1253 switch (wlvif->encryption_type) { 1254 case KEY_TKIP: 1255 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) 1256 extra = WL1271_EXTRA_SPACE_TKIP; 1257 break; 1258 case KEY_AES: 1259 extra = WL1271_EXTRA_SPACE_AES; 1260 break; 1261 case KEY_NONE: 1262 case KEY_WEP: 1263 case KEY_GEM: 1264 extra = 0; 1265 break; 1266 default: 1267 wl1271_warning("Unknown encryption type: %d", 1268 wlvif->encryption_type); 1269 ret = -EINVAL; 1270 goto out; 1271 } 1272 1273 if (extra) { 1274 u8 *space = skb_push(skb, extra); 1275 memset(space, 0, extra); 1276 } 1277 1278 /* QoS header - BE */ 1279 if (wlvif->sta.qos) 1280 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16)); 1281 1282 /* mac80211 header */ 1283 hdr = skb_push(skb, sizeof(*hdr)); 1284 memset(hdr, 0, sizeof(*hdr)); 1285 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS; 1286 if (wlvif->sta.qos) 1287 fc |= IEEE80211_STYPE_QOS_DATA; 1288 else 1289 fc |= IEEE80211_STYPE_DATA; 1290 if (wlvif->encryption_type != KEY_NONE) 1291 fc |= IEEE80211_FCTL_PROTECTED; 1292 1293 hdr->frame_control = cpu_to_le16(fc); 1294 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN); 1295 memcpy(hdr->addr2, vif->addr, ETH_ALEN); 1296 eth_broadcast_addr(hdr->addr3); 1297 1298 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP, 1299 skb->data, skb->len, 0, 1300 wlvif->basic_rate); 1301 out: 1302 dev_kfree_skb(skb); 1303 return ret; 1304 } 1305 1306 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif) 1307 { 1308 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 1309 struct ieee80211_qos_hdr template; 1310 1311 memset(&template, 0, sizeof(template)); 1312 1313 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN); 1314 memcpy(template.addr2, vif->addr, ETH_ALEN); 1315 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN); 1316 1317 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 1318 IEEE80211_STYPE_QOS_NULLFUNC | 1319 IEEE80211_FCTL_TODS); 1320 1321 /* FIXME: not sure what priority to use here */ 1322 template.qos_ctrl = cpu_to_le16(0); 1323 1324 return wl1271_cmd_template_set(wl, wlvif->role_id, 1325 CMD_TEMPL_QOS_NULL_DATA, &template, 1326 sizeof(template), 0, 1327 wlvif->basic_rate); 1328 } 1329 1330 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid) 1331 { 1332 struct wl1271_cmd_set_keys *cmd; 1333 int ret = 0; 1334 1335 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id); 1336 1337 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1338 if (!cmd) { 1339 ret = -ENOMEM; 1340 goto out; 1341 } 1342 1343 cmd->hlid = hlid; 1344 cmd->key_id = id; 1345 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1346 cmd->key_action = cpu_to_le16(KEY_SET_ID); 1347 cmd->key_type = KEY_WEP; 1348 1349 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1350 if (ret < 0) { 1351 wl1271_warning("cmd set_default_wep_key failed: %d", ret); 1352 goto out; 1353 } 1354 1355 out: 1356 kfree(cmd); 1357 1358 return ret; 1359 } 1360 1361 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1362 u16 action, u8 id, u8 key_type, 1363 u8 key_size, const u8 *key, const u8 *addr, 1364 u32 tx_seq_32, u16 tx_seq_16) 1365 { 1366 struct wl1271_cmd_set_keys *cmd; 1367 int ret = 0; 1368 1369 /* hlid might have already been deleted */ 1370 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) 1371 return 0; 1372 1373 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1374 if (!cmd) { 1375 ret = -ENOMEM; 1376 goto out; 1377 } 1378 1379 cmd->hlid = wlvif->sta.hlid; 1380 1381 if (key_type == KEY_WEP) 1382 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1383 else if (is_broadcast_ether_addr(addr)) 1384 cmd->lid_key_type = BROADCAST_LID_TYPE; 1385 else 1386 cmd->lid_key_type = UNICAST_LID_TYPE; 1387 1388 cmd->key_action = cpu_to_le16(action); 1389 cmd->key_size = key_size; 1390 cmd->key_type = key_type; 1391 1392 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1393 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1394 1395 cmd->key_id = id; 1396 1397 if (key_type == KEY_TKIP) { 1398 /* 1399 * We get the key in the following form: 1400 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1401 * but the target is expecting: 1402 * TKIP - RX MIC - TX MIC 1403 */ 1404 memcpy(cmd->key, key, 16); 1405 memcpy(cmd->key + 16, key + 24, 8); 1406 memcpy(cmd->key + 24, key + 16, 8); 1407 1408 } else { 1409 memcpy(cmd->key, key, key_size); 1410 } 1411 1412 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd)); 1413 1414 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1415 if (ret < 0) { 1416 wl1271_warning("could not set keys"); 1417 goto out; 1418 } 1419 1420 out: 1421 kfree(cmd); 1422 1423 return ret; 1424 } 1425 1426 /* 1427 * TODO: merge with sta/ibss into 1 set_key function. 1428 * note there are slight diffs 1429 */ 1430 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1431 u16 action, u8 id, u8 key_type, 1432 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32, 1433 u16 tx_seq_16, bool is_pairwise) 1434 { 1435 struct wl1271_cmd_set_keys *cmd; 1436 int ret = 0; 1437 u8 lid_type; 1438 1439 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1440 if (!cmd) 1441 return -ENOMEM; 1442 1443 if (hlid == wlvif->ap.bcast_hlid) { 1444 if (key_type == KEY_WEP) 1445 lid_type = WEP_DEFAULT_LID_TYPE; 1446 else 1447 lid_type = BROADCAST_LID_TYPE; 1448 } else if (is_pairwise) { 1449 lid_type = UNICAST_LID_TYPE; 1450 } else { 1451 lid_type = BROADCAST_LID_TYPE; 1452 } 1453 1454 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d" 1455 " hlid: %d", (int)action, (int)id, (int)lid_type, 1456 (int)key_type, (int)hlid); 1457 1458 cmd->lid_key_type = lid_type; 1459 cmd->hlid = hlid; 1460 cmd->key_action = cpu_to_le16(action); 1461 cmd->key_size = key_size; 1462 cmd->key_type = key_type; 1463 cmd->key_id = id; 1464 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1465 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1466 1467 if (key_type == KEY_TKIP) { 1468 /* 1469 * We get the key in the following form: 1470 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1471 * but the target is expecting: 1472 * TKIP - RX MIC - TX MIC 1473 */ 1474 memcpy(cmd->key, key, 16); 1475 memcpy(cmd->key + 16, key + 24, 8); 1476 memcpy(cmd->key + 24, key + 16, 8); 1477 } else { 1478 memcpy(cmd->key, key, key_size); 1479 } 1480 1481 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd)); 1482 1483 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1484 if (ret < 0) { 1485 wl1271_warning("could not set ap keys"); 1486 goto out; 1487 } 1488 1489 out: 1490 kfree(cmd); 1491 return ret; 1492 } 1493 1494 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1495 u8 hlid) 1496 { 1497 struct wl12xx_cmd_set_peer_state *cmd; 1498 int ret = 0; 1499 1500 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid); 1501 1502 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1503 if (!cmd) { 1504 ret = -ENOMEM; 1505 goto out; 1506 } 1507 1508 cmd->hlid = hlid; 1509 cmd->state = WL1271_CMD_STA_STATE_CONNECTED; 1510 1511 /* wmm param is valid only for station role */ 1512 if (wlvif->bss_type == BSS_TYPE_STA_BSS) 1513 cmd->wmm = wlvif->wmm_enabled; 1514 1515 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0); 1516 if (ret < 0) { 1517 wl1271_error("failed to send set peer state command"); 1518 goto out_free; 1519 } 1520 1521 out_free: 1522 kfree(cmd); 1523 1524 out: 1525 return ret; 1526 } 1527 1528 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1529 struct ieee80211_sta *sta, u8 hlid) 1530 { 1531 struct wl12xx_cmd_add_peer *cmd; 1532 int i, ret; 1533 u32 sta_rates; 1534 1535 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid); 1536 1537 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1538 if (!cmd) { 1539 ret = -ENOMEM; 1540 goto out; 1541 } 1542 1543 memcpy(cmd->addr, sta->addr, ETH_ALEN); 1544 cmd->bss_index = WL1271_AP_BSS_INDEX; 1545 cmd->aid = sta->aid; 1546 cmd->hlid = hlid; 1547 cmd->sp_len = sta->max_sp; 1548 cmd->wmm = sta->wme ? 1 : 0; 1549 cmd->session_id = wl->session_ids[hlid]; 1550 cmd->role_id = wlvif->role_id; 1551 1552 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++) 1553 if (sta->wme && (sta->uapsd_queues & BIT(i))) 1554 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1555 WL1271_PSD_UPSD_TRIGGER; 1556 else 1557 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1558 WL1271_PSD_LEGACY; 1559 1560 1561 sta_rates = sta->deflink.supp_rates[wlvif->band]; 1562 if (sta->deflink.ht_cap.ht_supported) 1563 sta_rates |= 1564 (sta->deflink.ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) | 1565 (sta->deflink.ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET); 1566 1567 cmd->supported_rates = 1568 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates, 1569 wlvif->band)); 1570 1571 if (!cmd->supported_rates) { 1572 wl1271_debug(DEBUG_CMD, 1573 "peer has no supported rates yet, configuring basic rates: 0x%x", 1574 wlvif->basic_rate_set); 1575 cmd->supported_rates = cpu_to_le32(wlvif->basic_rate_set); 1576 } 1577 1578 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x", 1579 cmd->supported_rates, sta->uapsd_queues); 1580 1581 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0); 1582 if (ret < 0) { 1583 wl1271_error("failed to initiate cmd add peer"); 1584 goto out_free; 1585 } 1586 1587 out_free: 1588 kfree(cmd); 1589 1590 out: 1591 return ret; 1592 } 1593 1594 int wl12xx_cmd_remove_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1595 u8 hlid) 1596 { 1597 struct wl12xx_cmd_remove_peer *cmd; 1598 int ret; 1599 bool timeout = false; 1600 1601 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid); 1602 1603 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1604 if (!cmd) { 1605 ret = -ENOMEM; 1606 goto out; 1607 } 1608 1609 cmd->hlid = hlid; 1610 /* We never send a deauth, mac80211 is in charge of this */ 1611 cmd->reason_opcode = 0; 1612 cmd->send_deauth_flag = 0; 1613 cmd->role_id = wlvif->role_id; 1614 1615 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0); 1616 if (ret < 0) { 1617 wl1271_error("failed to initiate cmd remove peer"); 1618 goto out_free; 1619 } 1620 1621 ret = wl->ops->wait_for_event(wl, 1622 WLCORE_EVENT_PEER_REMOVE_COMPLETE, 1623 &timeout); 1624 1625 /* 1626 * We are ok with a timeout here. The event is sometimes not sent 1627 * due to a firmware bug. In case of another error (like SDIO timeout) 1628 * queue a recovery. 1629 */ 1630 if (ret) 1631 wl12xx_queue_recovery_work(wl); 1632 1633 out_free: 1634 kfree(cmd); 1635 1636 out: 1637 return ret; 1638 } 1639 1640 static int wlcore_get_reg_conf_ch_idx(enum nl80211_band band, u16 ch) 1641 { 1642 /* 1643 * map the given band/channel to the respective predefined 1644 * bit expected by the fw 1645 */ 1646 switch (band) { 1647 case NL80211_BAND_2GHZ: 1648 /* channels 1..14 are mapped to 0..13 */ 1649 if (ch >= 1 && ch <= 14) 1650 return ch - 1; 1651 break; 1652 case NL80211_BAND_5GHZ: 1653 switch (ch) { 1654 case 8 ... 16: 1655 /* channels 8,12,16 are mapped to 18,19,20 */ 1656 return 18 + (ch-8)/4; 1657 case 34 ... 48: 1658 /* channels 34,36..48 are mapped to 21..28 */ 1659 return 21 + (ch-34)/2; 1660 case 52 ... 64: 1661 /* channels 52,56..64 are mapped to 29..32 */ 1662 return 29 + (ch-52)/4; 1663 case 100 ... 140: 1664 /* channels 100,104..140 are mapped to 33..43 */ 1665 return 33 + (ch-100)/4; 1666 case 149 ... 165: 1667 /* channels 149,153..165 are mapped to 44..48 */ 1668 return 44 + (ch-149)/4; 1669 default: 1670 break; 1671 } 1672 break; 1673 default: 1674 break; 1675 } 1676 1677 wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch); 1678 return -1; 1679 } 1680 1681 void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel, 1682 enum nl80211_band band) 1683 { 1684 int ch_bit_idx = 0; 1685 1686 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF)) 1687 return; 1688 1689 ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel); 1690 1691 if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS) 1692 __set_bit_le(ch_bit_idx, (long *)wl->reg_ch_conf_pending); 1693 } 1694 1695 int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl) 1696 { 1697 struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL; 1698 int ret = 0, i, b, ch_bit_idx; 1699 __le32 tmp_ch_bitmap[2] __aligned(sizeof(unsigned long)); 1700 struct wiphy *wiphy = wl->hw->wiphy; 1701 struct ieee80211_supported_band *band; 1702 bool timeout = false; 1703 1704 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF)) 1705 return 0; 1706 1707 wl1271_debug(DEBUG_CMD, "cmd reg domain config"); 1708 1709 memcpy(tmp_ch_bitmap, wl->reg_ch_conf_pending, sizeof(tmp_ch_bitmap)); 1710 1711 for (b = NL80211_BAND_2GHZ; b <= NL80211_BAND_5GHZ; b++) { 1712 band = wiphy->bands[b]; 1713 for (i = 0; i < band->n_channels; i++) { 1714 struct ieee80211_channel *channel = &band->channels[i]; 1715 u16 ch = channel->hw_value; 1716 u32 flags = channel->flags; 1717 1718 if (flags & (IEEE80211_CHAN_DISABLED | 1719 IEEE80211_CHAN_NO_IR)) 1720 continue; 1721 1722 if ((flags & IEEE80211_CHAN_RADAR) && 1723 channel->dfs_state != NL80211_DFS_AVAILABLE) 1724 continue; 1725 1726 ch_bit_idx = wlcore_get_reg_conf_ch_idx(b, ch); 1727 if (ch_bit_idx < 0) 1728 continue; 1729 1730 __set_bit_le(ch_bit_idx, (long *)tmp_ch_bitmap); 1731 } 1732 } 1733 1734 if (!memcmp(tmp_ch_bitmap, wl->reg_ch_conf_last, sizeof(tmp_ch_bitmap))) 1735 goto out; 1736 1737 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1738 if (!cmd) { 1739 ret = -ENOMEM; 1740 goto out; 1741 } 1742 1743 cmd->ch_bit_map1 = tmp_ch_bitmap[0]; 1744 cmd->ch_bit_map2 = tmp_ch_bitmap[1]; 1745 cmd->dfs_region = wl->dfs_region; 1746 1747 wl1271_debug(DEBUG_CMD, 1748 "cmd reg domain bitmap1: 0x%08x, bitmap2: 0x%08x", 1749 cmd->ch_bit_map1, cmd->ch_bit_map2); 1750 1751 ret = wl1271_cmd_send(wl, CMD_DFS_CHANNEL_CONFIG, cmd, sizeof(*cmd), 0); 1752 if (ret < 0) { 1753 wl1271_error("failed to send reg domain dfs config"); 1754 goto out; 1755 } 1756 1757 ret = wl->ops->wait_for_event(wl, 1758 WLCORE_EVENT_DFS_CONFIG_COMPLETE, 1759 &timeout); 1760 if (ret < 0 || timeout) { 1761 wl1271_error("reg domain conf %serror", 1762 timeout ? "completion " : ""); 1763 ret = timeout ? -ETIMEDOUT : ret; 1764 goto out; 1765 } 1766 1767 memcpy(wl->reg_ch_conf_last, tmp_ch_bitmap, sizeof(tmp_ch_bitmap)); 1768 memset(wl->reg_ch_conf_pending, 0, sizeof(wl->reg_ch_conf_pending)); 1769 1770 out: 1771 kfree(cmd); 1772 return ret; 1773 } 1774 1775 int wl12xx_cmd_config_fwlog(struct wl1271 *wl) 1776 { 1777 struct wl12xx_cmd_config_fwlog *cmd; 1778 int ret = 0; 1779 1780 wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); 1781 1782 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1783 if (!cmd) { 1784 ret = -ENOMEM; 1785 goto out; 1786 } 1787 1788 cmd->logger_mode = wl->conf.fwlog.mode; 1789 cmd->log_severity = wl->conf.fwlog.severity; 1790 cmd->timestamp = wl->conf.fwlog.timestamp; 1791 cmd->output = wl->conf.fwlog.output; 1792 cmd->threshold = wl->conf.fwlog.threshold; 1793 1794 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); 1795 if (ret < 0) { 1796 wl1271_error("failed to send config firmware logger command"); 1797 goto out_free; 1798 } 1799 1800 out_free: 1801 kfree(cmd); 1802 1803 out: 1804 return ret; 1805 } 1806 1807 int wl12xx_cmd_start_fwlog(struct wl1271 *wl) 1808 { 1809 struct wl12xx_cmd_start_fwlog *cmd; 1810 int ret = 0; 1811 1812 wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); 1813 1814 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1815 if (!cmd) { 1816 ret = -ENOMEM; 1817 goto out; 1818 } 1819 1820 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); 1821 if (ret < 0) { 1822 wl1271_error("failed to send start firmware logger command"); 1823 goto out_free; 1824 } 1825 1826 out_free: 1827 kfree(cmd); 1828 1829 out: 1830 return ret; 1831 } 1832 1833 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) 1834 { 1835 struct wl12xx_cmd_stop_fwlog *cmd; 1836 int ret = 0; 1837 1838 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); 1839 1840 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1841 if (!cmd) { 1842 ret = -ENOMEM; 1843 goto out; 1844 } 1845 1846 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); 1847 if (ret < 0) { 1848 wl1271_error("failed to send stop firmware logger command"); 1849 goto out_free; 1850 } 1851 1852 out_free: 1853 kfree(cmd); 1854 1855 out: 1856 return ret; 1857 } 1858 1859 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1860 u8 role_id, enum nl80211_band band, u8 channel) 1861 { 1862 struct wl12xx_cmd_roc *cmd; 1863 int ret = 0; 1864 1865 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id); 1866 1867 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID)) 1868 return -EINVAL; 1869 1870 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1871 if (!cmd) { 1872 ret = -ENOMEM; 1873 goto out; 1874 } 1875 1876 cmd->role_id = role_id; 1877 cmd->channel = channel; 1878 switch (band) { 1879 case NL80211_BAND_2GHZ: 1880 cmd->band = WLCORE_BAND_2_4GHZ; 1881 break; 1882 case NL80211_BAND_5GHZ: 1883 cmd->band = WLCORE_BAND_5GHZ; 1884 break; 1885 default: 1886 wl1271_error("roc - unknown band: %d", (int)wlvif->band); 1887 ret = -EINVAL; 1888 goto out_free; 1889 } 1890 1891 1892 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0); 1893 if (ret < 0) { 1894 wl1271_error("failed to send ROC command"); 1895 goto out_free; 1896 } 1897 1898 out_free: 1899 kfree(cmd); 1900 1901 out: 1902 return ret; 1903 } 1904 1905 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id) 1906 { 1907 struct wl12xx_cmd_croc *cmd; 1908 int ret = 0; 1909 1910 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id); 1911 1912 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1913 if (!cmd) { 1914 ret = -ENOMEM; 1915 goto out; 1916 } 1917 cmd->role_id = role_id; 1918 1919 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd, 1920 sizeof(*cmd), 0); 1921 if (ret < 0) { 1922 wl1271_error("failed to send ROC command"); 1923 goto out_free; 1924 } 1925 1926 out_free: 1927 kfree(cmd); 1928 1929 out: 1930 return ret; 1931 } 1932 1933 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id, 1934 enum nl80211_band band, u8 channel) 1935 { 1936 int ret = 0; 1937 1938 if (WARN_ON(test_bit(role_id, wl->roc_map))) 1939 return 0; 1940 1941 ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel); 1942 if (ret < 0) 1943 goto out; 1944 1945 __set_bit(role_id, wl->roc_map); 1946 out: 1947 return ret; 1948 } 1949 1950 int wl12xx_croc(struct wl1271 *wl, u8 role_id) 1951 { 1952 int ret = 0; 1953 1954 if (WARN_ON(!test_bit(role_id, wl->roc_map))) 1955 return 0; 1956 1957 ret = wl12xx_cmd_croc(wl, role_id); 1958 if (ret < 0) 1959 goto out; 1960 1961 __clear_bit(role_id, wl->roc_map); 1962 1963 /* 1964 * Rearm the tx watchdog when removing the last ROC. This prevents 1965 * recoveries due to just finished ROCs - when Tx hasn't yet had 1966 * a chance to get out. 1967 */ 1968 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) 1969 wl12xx_rearm_tx_watchdog_locked(wl); 1970 out: 1971 return ret; 1972 } 1973 1974 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1975 { 1976 struct wl12xx_cmd_stop_channel_switch *cmd; 1977 int ret; 1978 1979 wl1271_debug(DEBUG_ACX, "cmd stop channel switch"); 1980 1981 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1982 if (!cmd) { 1983 ret = -ENOMEM; 1984 goto out; 1985 } 1986 1987 cmd->role_id = wlvif->role_id; 1988 1989 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0); 1990 if (ret < 0) { 1991 wl1271_error("failed to stop channel switch command"); 1992 goto out_free; 1993 } 1994 1995 out_free: 1996 kfree(cmd); 1997 1998 out: 1999 return ret; 2000 } 2001 2002 /* start dev role and roc on its channel */ 2003 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif, 2004 enum nl80211_band band, int channel) 2005 { 2006 int ret; 2007 2008 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 2009 wlvif->bss_type == BSS_TYPE_IBSS))) 2010 return -EINVAL; 2011 2012 /* the dev role is already started for p2p mgmt interfaces */ 2013 if (!wlcore_is_p2p_mgmt(wlvif)) { 2014 ret = wl12xx_cmd_role_enable(wl, 2015 wl12xx_wlvif_to_vif(wlvif)->addr, 2016 WL1271_ROLE_DEVICE, 2017 &wlvif->dev_role_id); 2018 if (ret < 0) 2019 goto out; 2020 } 2021 2022 ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel); 2023 if (ret < 0) 2024 goto out_disable; 2025 2026 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel); 2027 if (ret < 0) 2028 goto out_stop; 2029 2030 return 0; 2031 2032 out_stop: 2033 wl12xx_cmd_role_stop_dev(wl, wlvif); 2034 out_disable: 2035 if (!wlcore_is_p2p_mgmt(wlvif)) 2036 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 2037 out: 2038 return ret; 2039 } 2040 2041 /* croc dev hlid, and stop the role */ 2042 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 2043 { 2044 int ret; 2045 2046 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 2047 wlvif->bss_type == BSS_TYPE_IBSS))) 2048 return -EINVAL; 2049 2050 /* flush all pending packets */ 2051 ret = wlcore_tx_work_locked(wl); 2052 if (ret < 0) 2053 goto out; 2054 2055 if (test_bit(wlvif->dev_role_id, wl->roc_map)) { 2056 ret = wl12xx_croc(wl, wlvif->dev_role_id); 2057 if (ret < 0) 2058 goto out; 2059 } 2060 2061 ret = wl12xx_cmd_role_stop_dev(wl, wlvif); 2062 if (ret < 0) 2063 goto out; 2064 2065 if (!wlcore_is_p2p_mgmt(wlvif)) { 2066 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 2067 if (ret < 0) 2068 goto out; 2069 } 2070 2071 out: 2072 return ret; 2073 } 2074 2075 int wlcore_cmd_generic_cfg(struct wl1271 *wl, struct wl12xx_vif *wlvif, 2076 u8 feature, u8 enable, u8 value) 2077 { 2078 struct wlcore_cmd_generic_cfg *cmd; 2079 int ret; 2080 2081 wl1271_debug(DEBUG_CMD, 2082 "cmd generic cfg (role %d feature %d enable %d value %d)", 2083 wlvif->role_id, feature, enable, value); 2084 2085 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 2086 if (!cmd) 2087 return -ENOMEM; 2088 2089 cmd->role_id = wlvif->role_id; 2090 cmd->feature = feature; 2091 cmd->enable = enable; 2092 cmd->value = value; 2093 2094 ret = wl1271_cmd_send(wl, CMD_GENERIC_CFG, cmd, sizeof(*cmd), 0); 2095 if (ret < 0) { 2096 wl1271_error("failed to send generic cfg command"); 2097 goto out_free; 2098 } 2099 out_free: 2100 kfree(cmd); 2101 return ret; 2102 } 2103 EXPORT_SYMBOL_GPL(wlcore_cmd_generic_cfg); 2104