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