1 /* 2 * This file is part of wl1271 3 * 4 * Copyright (C) 2009-2010 Nokia Corporation 5 * 6 * Contact: Luciano Coelho <luciano.coelho@nokia.com> 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License 10 * version 2 as published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 20 * 02110-1301 USA 21 * 22 */ 23 24 #include <linux/module.h> 25 #include <linux/platform_device.h> 26 #include <linux/spi/spi.h> 27 #include <linux/etherdevice.h> 28 #include <linux/ieee80211.h> 29 #include <linux/slab.h> 30 31 #include "wlcore.h" 32 #include "debug.h" 33 #include "io.h" 34 #include "acx.h" 35 #include "wl12xx_80211.h" 36 #include "cmd.h" 37 #include "event.h" 38 #include "tx.h" 39 #include "hw_ops.h" 40 41 #define WL1271_CMD_FAST_POLL_COUNT 50 42 #define WL1271_WAIT_EVENT_FAST_POLL_COUNT 20 43 44 /* 45 * send command to firmware 46 * 47 * @wl: wl struct 48 * @id: command id 49 * @buf: buffer containing the command, must work with dma 50 * @len: length of the buffer 51 */ 52 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len, 53 size_t res_len) 54 { 55 struct wl1271_cmd_header *cmd; 56 unsigned long timeout; 57 u32 intr; 58 int ret = 0; 59 u16 status; 60 u16 poll_count = 0; 61 62 if (WARN_ON(unlikely(wl->state == WLCORE_STATE_RESTARTING))) 63 return -EIO; 64 65 cmd = buf; 66 cmd->id = cpu_to_le16(id); 67 cmd->status = 0; 68 69 WARN_ON(len % 4 != 0); 70 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags)); 71 72 ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false); 73 if (ret < 0) 74 goto fail; 75 76 /* 77 * TODO: we just need this because one bit is in a different 78 * place. Is there any better way? 79 */ 80 ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len); 81 if (ret < 0) 82 goto fail; 83 84 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT); 85 86 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); 87 if (ret < 0) 88 goto fail; 89 90 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) { 91 if (time_after(jiffies, timeout)) { 92 wl1271_error("command complete timeout"); 93 ret = -ETIMEDOUT; 94 goto fail; 95 } 96 97 poll_count++; 98 if (poll_count < WL1271_CMD_FAST_POLL_COUNT) 99 udelay(10); 100 else 101 msleep(1); 102 103 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); 104 if (ret < 0) 105 goto fail; 106 } 107 108 /* read back the status code of the command */ 109 if (res_len == 0) 110 res_len = sizeof(struct wl1271_cmd_header); 111 112 ret = wlcore_read(wl, wl->cmd_box_addr, cmd, res_len, false); 113 if (ret < 0) 114 goto fail; 115 116 status = le16_to_cpu(cmd->status); 117 if (status != CMD_STATUS_SUCCESS) { 118 wl1271_error("command execute failure %d", status); 119 ret = -EIO; 120 goto fail; 121 } 122 123 ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK, 124 WL1271_ACX_INTR_CMD_COMPLETE); 125 if (ret < 0) 126 goto fail; 127 128 return 0; 129 130 fail: 131 wl12xx_queue_recovery_work(wl); 132 return ret; 133 } 134 135 /* 136 * Poll the mailbox event field until any of the bits in the mask is set or a 137 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs) 138 */ 139 static int wl1271_cmd_wait_for_event_or_timeout(struct wl1271 *wl, 140 u32 mask, bool *timeout) 141 { 142 u32 *events_vector; 143 u32 event; 144 unsigned long timeout_time; 145 u16 poll_count = 0; 146 int ret = 0; 147 148 *timeout = false; 149 150 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA); 151 if (!events_vector) 152 return -ENOMEM; 153 154 timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT); 155 156 do { 157 if (time_after(jiffies, timeout_time)) { 158 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d", 159 (int)mask); 160 *timeout = true; 161 goto out; 162 } 163 164 poll_count++; 165 if (poll_count < WL1271_WAIT_EVENT_FAST_POLL_COUNT) 166 usleep_range(50, 51); 167 else 168 usleep_range(1000, 5000); 169 170 /* read from both event fields */ 171 ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector, 172 sizeof(*events_vector), false); 173 if (ret < 0) 174 goto out; 175 176 event = *events_vector & mask; 177 178 ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector, 179 sizeof(*events_vector), false); 180 if (ret < 0) 181 goto out; 182 183 event |= *events_vector & mask; 184 } while (!event); 185 186 out: 187 kfree(events_vector); 188 return ret; 189 } 190 191 static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask) 192 { 193 int ret; 194 bool timeout = false; 195 196 ret = wl1271_cmd_wait_for_event_or_timeout(wl, mask, &timeout); 197 if (ret != 0 || timeout) { 198 wl12xx_queue_recovery_work(wl); 199 return ret; 200 } 201 202 return 0; 203 } 204 205 int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type, 206 u8 *role_id) 207 { 208 struct wl12xx_cmd_role_enable *cmd; 209 int ret; 210 211 wl1271_debug(DEBUG_CMD, "cmd role enable"); 212 213 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID)) 214 return -EBUSY; 215 216 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 217 if (!cmd) { 218 ret = -ENOMEM; 219 goto out; 220 } 221 222 /* get role id */ 223 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES); 224 if (cmd->role_id >= WL12XX_MAX_ROLES) { 225 ret = -EBUSY; 226 goto out_free; 227 } 228 229 memcpy(cmd->mac_address, addr, ETH_ALEN); 230 cmd->role_type = role_type; 231 232 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0); 233 if (ret < 0) { 234 wl1271_error("failed to initiate cmd role enable"); 235 goto out_free; 236 } 237 238 __set_bit(cmd->role_id, wl->roles_map); 239 *role_id = cmd->role_id; 240 241 out_free: 242 kfree(cmd); 243 244 out: 245 return ret; 246 } 247 248 int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id) 249 { 250 struct wl12xx_cmd_role_disable *cmd; 251 int ret; 252 253 wl1271_debug(DEBUG_CMD, "cmd role disable"); 254 255 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID)) 256 return -ENOENT; 257 258 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 259 if (!cmd) { 260 ret = -ENOMEM; 261 goto out; 262 } 263 cmd->role_id = *role_id; 264 265 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0); 266 if (ret < 0) { 267 wl1271_error("failed to initiate cmd role disable"); 268 goto out_free; 269 } 270 271 __clear_bit(*role_id, wl->roles_map); 272 *role_id = WL12XX_INVALID_ROLE_ID; 273 274 out_free: 275 kfree(cmd); 276 277 out: 278 return ret; 279 } 280 281 int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 282 { 283 unsigned long flags; 284 u8 link = find_first_zero_bit(wl->links_map, WL12XX_MAX_LINKS); 285 if (link >= WL12XX_MAX_LINKS) 286 return -EBUSY; 287 288 /* these bits are used by op_tx */ 289 spin_lock_irqsave(&wl->wl_lock, flags); 290 __set_bit(link, wl->links_map); 291 __set_bit(link, wlvif->links_map); 292 spin_unlock_irqrestore(&wl->wl_lock, flags); 293 *hlid = link; 294 return 0; 295 } 296 297 void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 298 { 299 unsigned long flags; 300 301 if (*hlid == WL12XX_INVALID_LINK_ID) 302 return; 303 304 /* these bits are used by op_tx */ 305 spin_lock_irqsave(&wl->wl_lock, flags); 306 __clear_bit(*hlid, wl->links_map); 307 __clear_bit(*hlid, wlvif->links_map); 308 spin_unlock_irqrestore(&wl->wl_lock, flags); 309 310 /* 311 * At this point op_tx() will not add more packets to the queues. We 312 * can purge them. 313 */ 314 wl1271_tx_reset_link_queues(wl, *hlid); 315 316 *hlid = WL12XX_INVALID_LINK_ID; 317 } 318 319 static int wl12xx_get_new_session_id(struct wl1271 *wl, 320 struct wl12xx_vif *wlvif) 321 { 322 if (wlvif->session_counter >= SESSION_COUNTER_MAX) 323 wlvif->session_counter = 0; 324 325 wlvif->session_counter++; 326 327 return wlvif->session_counter; 328 } 329 330 static u8 wlcore_get_native_channel_type(u8 nl_channel_type) 331 { 332 switch (nl_channel_type) { 333 case NL80211_CHAN_NO_HT: 334 return WLCORE_CHAN_NO_HT; 335 case NL80211_CHAN_HT20: 336 return WLCORE_CHAN_HT20; 337 case NL80211_CHAN_HT40MINUS: 338 return WLCORE_CHAN_HT40MINUS; 339 case NL80211_CHAN_HT40PLUS: 340 return WLCORE_CHAN_HT40PLUS; 341 default: 342 WARN_ON(1); 343 return WLCORE_CHAN_NO_HT; 344 } 345 } 346 347 static int wl12xx_cmd_role_start_dev(struct wl1271 *wl, 348 struct wl12xx_vif *wlvif, 349 enum ieee80211_band band, 350 int channel) 351 { 352 struct wl12xx_cmd_role_start *cmd; 353 int ret; 354 355 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 356 if (!cmd) { 357 ret = -ENOMEM; 358 goto out; 359 } 360 361 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id); 362 363 cmd->role_id = wlvif->dev_role_id; 364 if (band == IEEE80211_BAND_5GHZ) 365 cmd->band = WLCORE_BAND_5GHZ; 366 cmd->channel = channel; 367 368 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) { 369 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid); 370 if (ret) 371 goto out_free; 372 } 373 cmd->device.hlid = wlvif->dev_hlid; 374 cmd->device.session = wl12xx_get_new_session_id(wl, wlvif); 375 376 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d", 377 cmd->role_id, cmd->device.hlid, cmd->device.session); 378 379 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 380 if (ret < 0) { 381 wl1271_error("failed to initiate cmd role enable"); 382 goto err_hlid; 383 } 384 385 goto out_free; 386 387 err_hlid: 388 /* clear links on error */ 389 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 390 391 out_free: 392 kfree(cmd); 393 394 out: 395 return ret; 396 } 397 398 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, 399 struct wl12xx_vif *wlvif) 400 { 401 struct wl12xx_cmd_role_stop *cmd; 402 int ret; 403 404 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID)) 405 return -EINVAL; 406 407 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 408 if (!cmd) { 409 ret = -ENOMEM; 410 goto out; 411 } 412 413 wl1271_debug(DEBUG_CMD, "cmd role stop dev"); 414 415 cmd->role_id = wlvif->dev_role_id; 416 cmd->disc_type = DISCONNECT_IMMEDIATE; 417 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 418 419 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 420 if (ret < 0) { 421 wl1271_error("failed to initiate cmd role stop"); 422 goto out_free; 423 } 424 425 ret = wl1271_cmd_wait_for_event(wl, ROLE_STOP_COMPLETE_EVENT_ID); 426 if (ret < 0) { 427 wl1271_error("cmd role stop dev event completion error"); 428 goto out_free; 429 } 430 431 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 432 433 out_free: 434 kfree(cmd); 435 436 out: 437 return ret; 438 } 439 440 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 441 { 442 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 443 struct wl12xx_cmd_role_start *cmd; 444 int ret; 445 446 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 447 if (!cmd) { 448 ret = -ENOMEM; 449 goto out; 450 } 451 452 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id); 453 454 cmd->role_id = wlvif->role_id; 455 if (wlvif->band == IEEE80211_BAND_5GHZ) 456 cmd->band = WLCORE_BAND_5GHZ; 457 cmd->channel = wlvif->channel; 458 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 459 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int); 460 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY; 461 cmd->sta.ssid_len = wlvif->ssid_len; 462 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len); 463 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN); 464 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 465 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 466 467 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 468 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 469 if (ret) 470 goto out_free; 471 } 472 cmd->sta.hlid = wlvif->sta.hlid; 473 cmd->sta.session = wl12xx_get_new_session_id(wl, wlvif); 474 cmd->sta.remote_rates = cpu_to_le32(wlvif->rate_set); 475 476 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 477 "basic_rate_set: 0x%x, remote_rates: 0x%x", 478 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 479 wlvif->basic_rate_set, wlvif->rate_set); 480 481 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 482 if (ret < 0) { 483 wl1271_error("failed to initiate cmd role start sta"); 484 goto err_hlid; 485 } 486 487 goto out_free; 488 489 err_hlid: 490 /* clear links on error. */ 491 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 492 493 out_free: 494 kfree(cmd); 495 496 out: 497 return ret; 498 } 499 500 /* use this function to stop ibss as well */ 501 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 502 { 503 struct wl12xx_cmd_role_stop *cmd; 504 int ret; 505 bool timeout = false; 506 507 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)) 508 return -EINVAL; 509 510 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 511 if (!cmd) { 512 ret = -ENOMEM; 513 goto out; 514 } 515 516 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id); 517 518 cmd->role_id = wlvif->role_id; 519 cmd->disc_type = DISCONNECT_IMMEDIATE; 520 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 521 522 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 523 if (ret < 0) { 524 wl1271_error("failed to initiate cmd role stop sta"); 525 goto out_free; 526 } 527 528 /* 529 * Sometimes the firmware doesn't send this event, so we just 530 * time out without failing. Queue recovery for other 531 * failures. 532 */ 533 ret = wl1271_cmd_wait_for_event_or_timeout(wl, 534 ROLE_STOP_COMPLETE_EVENT_ID, 535 &timeout); 536 if (ret) 537 wl12xx_queue_recovery_work(wl); 538 539 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 540 541 out_free: 542 kfree(cmd); 543 544 out: 545 return ret; 546 } 547 548 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 549 { 550 struct wl12xx_cmd_role_start *cmd; 551 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 552 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 553 u32 supported_rates; 554 int ret; 555 556 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id); 557 558 /* trying to use hidden SSID with an old hostapd version */ 559 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) { 560 wl1271_error("got a null SSID from beacon/bss"); 561 ret = -EINVAL; 562 goto out; 563 } 564 565 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 566 if (!cmd) { 567 ret = -ENOMEM; 568 goto out; 569 } 570 571 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid); 572 if (ret < 0) 573 goto out_free; 574 575 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid); 576 if (ret < 0) 577 goto out_free_global; 578 579 cmd->role_id = wlvif->role_id; 580 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period); 581 cmd->ap.bss_index = WL1271_AP_BSS_INDEX; 582 cmd->ap.global_hlid = wlvif->ap.global_hlid; 583 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid; 584 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 585 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int); 586 cmd->ap.dtim_interval = bss_conf->dtim_period; 587 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP; 588 /* FIXME: Change when adding DFS */ 589 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */ 590 cmd->channel = wlvif->channel; 591 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 592 593 if (!bss_conf->hidden_ssid) { 594 /* take the SSID from the beacon for backward compatibility */ 595 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC; 596 cmd->ap.ssid_len = wlvif->ssid_len; 597 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len); 598 } else { 599 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN; 600 cmd->ap.ssid_len = bss_conf->ssid_len; 601 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len); 602 } 603 604 supported_rates = CONF_TX_AP_ENABLED_RATES | CONF_TX_MCS_RATES | 605 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif); 606 607 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x", 608 supported_rates); 609 610 cmd->ap.local_rates = cpu_to_le32(supported_rates); 611 612 switch (wlvif->band) { 613 case IEEE80211_BAND_2GHZ: 614 cmd->band = WLCORE_BAND_2_4GHZ; 615 break; 616 case IEEE80211_BAND_5GHZ: 617 cmd->band = WLCORE_BAND_5GHZ; 618 break; 619 default: 620 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band); 621 cmd->band = WLCORE_BAND_2_4GHZ; 622 break; 623 } 624 625 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 626 if (ret < 0) { 627 wl1271_error("failed to initiate cmd role start ap"); 628 goto out_free_bcast; 629 } 630 631 goto out_free; 632 633 out_free_bcast: 634 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 635 636 out_free_global: 637 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 638 639 out_free: 640 kfree(cmd); 641 642 out: 643 return ret; 644 } 645 646 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 647 { 648 struct wl12xx_cmd_role_stop *cmd; 649 int ret; 650 651 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 652 if (!cmd) { 653 ret = -ENOMEM; 654 goto out; 655 } 656 657 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id); 658 659 cmd->role_id = wlvif->role_id; 660 661 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 662 if (ret < 0) { 663 wl1271_error("failed to initiate cmd role stop ap"); 664 goto out_free; 665 } 666 667 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 668 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 669 670 out_free: 671 kfree(cmd); 672 673 out: 674 return ret; 675 } 676 677 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif) 678 { 679 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 680 struct wl12xx_cmd_role_start *cmd; 681 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 682 int ret; 683 684 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 685 if (!cmd) { 686 ret = -ENOMEM; 687 goto out; 688 } 689 690 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id); 691 692 cmd->role_id = wlvif->role_id; 693 if (wlvif->band == IEEE80211_BAND_5GHZ) 694 cmd->band = WLCORE_BAND_5GHZ; 695 cmd->channel = wlvif->channel; 696 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 697 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int); 698 cmd->ibss.dtim_interval = bss_conf->dtim_period; 699 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY; 700 cmd->ibss.ssid_len = wlvif->ssid_len; 701 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len); 702 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN); 703 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 704 705 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 706 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 707 if (ret) 708 goto out_free; 709 } 710 cmd->ibss.hlid = wlvif->sta.hlid; 711 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set); 712 713 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 714 "basic_rate_set: 0x%x, remote_rates: 0x%x", 715 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 716 wlvif->basic_rate_set, wlvif->rate_set); 717 718 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM", 719 vif->bss_conf.bssid); 720 721 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 722 if (ret < 0) { 723 wl1271_error("failed to initiate cmd role enable"); 724 goto err_hlid; 725 } 726 727 goto out_free; 728 729 err_hlid: 730 /* clear links on error. */ 731 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 732 733 out_free: 734 kfree(cmd); 735 736 out: 737 return ret; 738 } 739 740 741 /** 742 * send test command to firmware 743 * 744 * @wl: wl struct 745 * @buf: buffer containing the command, with all headers, must work with dma 746 * @len: length of the buffer 747 * @answer: is answer needed 748 */ 749 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer) 750 { 751 int ret; 752 size_t res_len = 0; 753 754 wl1271_debug(DEBUG_CMD, "cmd test"); 755 756 if (answer) 757 res_len = buf_len; 758 759 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len); 760 761 if (ret < 0) { 762 wl1271_warning("TEST command failed"); 763 return ret; 764 } 765 766 return ret; 767 } 768 EXPORT_SYMBOL_GPL(wl1271_cmd_test); 769 770 /** 771 * read acx from firmware 772 * 773 * @wl: wl struct 774 * @id: acx id 775 * @buf: buffer for the response, including all headers, must work with dma 776 * @len: length of buf 777 */ 778 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len) 779 { 780 struct acx_header *acx = buf; 781 int ret; 782 783 wl1271_debug(DEBUG_CMD, "cmd interrogate"); 784 785 acx->id = cpu_to_le16(id); 786 787 /* payload length, does not include any headers */ 788 acx->len = cpu_to_le16(len - sizeof(*acx)); 789 790 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len); 791 if (ret < 0) 792 wl1271_error("INTERROGATE command failed"); 793 794 return ret; 795 } 796 797 /** 798 * write acx value to firmware 799 * 800 * @wl: wl struct 801 * @id: acx id 802 * @buf: buffer containing acx, including all headers, must work with dma 803 * @len: length of buf 804 */ 805 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len) 806 { 807 struct acx_header *acx = buf; 808 int ret; 809 810 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id); 811 812 acx->id = cpu_to_le16(id); 813 814 /* payload length, does not include any headers */ 815 acx->len = cpu_to_le16(len - sizeof(*acx)); 816 817 ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0); 818 if (ret < 0) { 819 wl1271_warning("CONFIGURE command NOK"); 820 return ret; 821 } 822 823 return 0; 824 } 825 EXPORT_SYMBOL_GPL(wl1271_cmd_configure); 826 827 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable) 828 { 829 struct cmd_enabledisable_path *cmd; 830 int ret; 831 u16 cmd_rx, cmd_tx; 832 833 wl1271_debug(DEBUG_CMD, "cmd data path"); 834 835 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 836 if (!cmd) { 837 ret = -ENOMEM; 838 goto out; 839 } 840 841 /* the channel here is only used for calibration, so hardcoded to 1 */ 842 cmd->channel = 1; 843 844 if (enable) { 845 cmd_rx = CMD_ENABLE_RX; 846 cmd_tx = CMD_ENABLE_TX; 847 } else { 848 cmd_rx = CMD_DISABLE_RX; 849 cmd_tx = CMD_DISABLE_TX; 850 } 851 852 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0); 853 if (ret < 0) { 854 wl1271_error("rx %s cmd for channel %d failed", 855 enable ? "start" : "stop", cmd->channel); 856 goto out; 857 } 858 859 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d", 860 enable ? "start" : "stop", cmd->channel); 861 862 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0); 863 if (ret < 0) { 864 wl1271_error("tx %s cmd for channel %d failed", 865 enable ? "start" : "stop", cmd->channel); 866 goto out; 867 } 868 869 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d", 870 enable ? "start" : "stop", cmd->channel); 871 872 out: 873 kfree(cmd); 874 return ret; 875 } 876 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path); 877 878 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif, 879 u8 ps_mode, u16 auto_ps_timeout) 880 { 881 struct wl1271_cmd_ps_params *ps_params = NULL; 882 int ret = 0; 883 884 wl1271_debug(DEBUG_CMD, "cmd set ps mode"); 885 886 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL); 887 if (!ps_params) { 888 ret = -ENOMEM; 889 goto out; 890 } 891 892 ps_params->role_id = wlvif->role_id; 893 ps_params->ps_mode = ps_mode; 894 ps_params->auto_ps_timeout = auto_ps_timeout; 895 896 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params, 897 sizeof(*ps_params), 0); 898 if (ret < 0) { 899 wl1271_error("cmd set_ps_mode failed"); 900 goto out; 901 } 902 903 out: 904 kfree(ps_params); 905 return ret; 906 } 907 908 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id, 909 u16 template_id, void *buf, size_t buf_len, 910 int index, u32 rates) 911 { 912 struct wl1271_cmd_template_set *cmd; 913 int ret = 0; 914 915 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)", 916 template_id, role_id); 917 918 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE); 919 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE); 920 921 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 922 if (!cmd) { 923 ret = -ENOMEM; 924 goto out; 925 } 926 927 /* during initialization wlvif is NULL */ 928 cmd->role_id = role_id; 929 cmd->len = cpu_to_le16(buf_len); 930 cmd->template_type = template_id; 931 cmd->enabled_rates = cpu_to_le32(rates); 932 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit; 933 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit; 934 cmd->index = index; 935 936 if (buf) 937 memcpy(cmd->template_data, buf, buf_len); 938 939 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0); 940 if (ret < 0) { 941 wl1271_warning("cmd set_template failed: %d", ret); 942 goto out_free; 943 } 944 945 out_free: 946 kfree(cmd); 947 948 out: 949 return ret; 950 } 951 952 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) 953 { 954 struct sk_buff *skb = NULL; 955 int size; 956 void *ptr; 957 int ret = -ENOMEM; 958 959 960 if (wlvif->bss_type == BSS_TYPE_IBSS) { 961 size = sizeof(struct wl12xx_null_data_template); 962 ptr = NULL; 963 } else { 964 skb = ieee80211_nullfunc_get(wl->hw, 965 wl12xx_wlvif_to_vif(wlvif)); 966 if (!skb) 967 goto out; 968 size = skb->len; 969 ptr = skb->data; 970 } 971 972 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 973 CMD_TEMPL_NULL_DATA, ptr, size, 0, 974 wlvif->basic_rate); 975 976 out: 977 dev_kfree_skb(skb); 978 if (ret) 979 wl1271_warning("cmd buld null data failed %d", ret); 980 981 return ret; 982 983 } 984 985 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, 986 struct wl12xx_vif *wlvif) 987 { 988 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 989 struct sk_buff *skb = NULL; 990 int ret = -ENOMEM; 991 992 skb = ieee80211_nullfunc_get(wl->hw, vif); 993 if (!skb) 994 goto out; 995 996 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV, 997 skb->data, skb->len, 998 wlvif->sta.klv_template_id, 999 wlvif->basic_rate); 1000 1001 out: 1002 dev_kfree_skb(skb); 1003 if (ret) 1004 wl1271_warning("cmd build klv null data failed %d", ret); 1005 1006 return ret; 1007 1008 } 1009 1010 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1011 u16 aid) 1012 { 1013 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1014 struct sk_buff *skb; 1015 int ret = 0; 1016 1017 skb = ieee80211_pspoll_get(wl->hw, vif); 1018 if (!skb) 1019 goto out; 1020 1021 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1022 CMD_TEMPL_PS_POLL, skb->data, 1023 skb->len, 0, wlvif->basic_rate_set); 1024 1025 out: 1026 dev_kfree_skb(skb); 1027 return ret; 1028 } 1029 1030 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1031 u8 role_id, u8 band, 1032 const u8 *ssid, size_t ssid_len, 1033 const u8 *ie, size_t ie_len, bool sched_scan) 1034 { 1035 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1036 struct sk_buff *skb; 1037 int ret; 1038 u32 rate; 1039 u16 template_id_2_4 = CMD_TEMPL_CFG_PROBE_REQ_2_4; 1040 u16 template_id_5 = CMD_TEMPL_CFG_PROBE_REQ_5; 1041 1042 skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len, 1043 ie, ie_len); 1044 if (!skb) { 1045 ret = -ENOMEM; 1046 goto out; 1047 } 1048 1049 wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len); 1050 1051 if (!sched_scan && 1052 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) { 1053 template_id_2_4 = CMD_TEMPL_APP_PROBE_REQ_2_4; 1054 template_id_5 = CMD_TEMPL_APP_PROBE_REQ_5; 1055 } 1056 1057 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]); 1058 if (band == IEEE80211_BAND_2GHZ) 1059 ret = wl1271_cmd_template_set(wl, role_id, 1060 template_id_2_4, 1061 skb->data, skb->len, 0, rate); 1062 else 1063 ret = wl1271_cmd_template_set(wl, role_id, 1064 template_id_5, 1065 skb->data, skb->len, 0, rate); 1066 1067 out: 1068 dev_kfree_skb(skb); 1069 return ret; 1070 } 1071 1072 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl, 1073 struct wl12xx_vif *wlvif, 1074 struct sk_buff *skb) 1075 { 1076 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1077 int ret; 1078 u32 rate; 1079 1080 if (!skb) 1081 skb = ieee80211_ap_probereq_get(wl->hw, vif); 1082 if (!skb) 1083 goto out; 1084 1085 wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len); 1086 1087 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]); 1088 if (wlvif->band == IEEE80211_BAND_2GHZ) 1089 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1090 CMD_TEMPL_CFG_PROBE_REQ_2_4, 1091 skb->data, skb->len, 0, rate); 1092 else 1093 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1094 CMD_TEMPL_CFG_PROBE_REQ_5, 1095 skb->data, skb->len, 0, rate); 1096 1097 if (ret < 0) 1098 wl1271_error("Unable to set ap probe request template."); 1099 1100 out: 1101 return skb; 1102 } 1103 1104 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1105 { 1106 int ret, extra = 0; 1107 u16 fc; 1108 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1109 struct sk_buff *skb; 1110 struct wl12xx_arp_rsp_template *tmpl; 1111 struct ieee80211_hdr_3addr *hdr; 1112 struct arphdr *arp_hdr; 1113 1114 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) + 1115 WL1271_EXTRA_SPACE_MAX); 1116 if (!skb) { 1117 wl1271_error("failed to allocate buffer for arp rsp template"); 1118 return -ENOMEM; 1119 } 1120 1121 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX); 1122 1123 tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl)); 1124 memset(tmpl, 0, sizeof(*tmpl)); 1125 1126 /* llc layer */ 1127 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header)); 1128 tmpl->llc_type = cpu_to_be16(ETH_P_ARP); 1129 1130 /* arp header */ 1131 arp_hdr = &tmpl->arp_hdr; 1132 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER); 1133 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP); 1134 arp_hdr->ar_hln = ETH_ALEN; 1135 arp_hdr->ar_pln = 4; 1136 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY); 1137 1138 /* arp payload */ 1139 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN); 1140 tmpl->sender_ip = wlvif->ip_addr; 1141 1142 /* encryption space */ 1143 switch (wlvif->encryption_type) { 1144 case KEY_TKIP: 1145 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) 1146 extra = WL1271_EXTRA_SPACE_TKIP; 1147 break; 1148 case KEY_AES: 1149 extra = WL1271_EXTRA_SPACE_AES; 1150 break; 1151 case KEY_NONE: 1152 case KEY_WEP: 1153 case KEY_GEM: 1154 extra = 0; 1155 break; 1156 default: 1157 wl1271_warning("Unknown encryption type: %d", 1158 wlvif->encryption_type); 1159 ret = -EINVAL; 1160 goto out; 1161 } 1162 1163 if (extra) { 1164 u8 *space = skb_push(skb, extra); 1165 memset(space, 0, extra); 1166 } 1167 1168 /* QoS header - BE */ 1169 if (wlvif->sta.qos) 1170 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16)); 1171 1172 /* mac80211 header */ 1173 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr)); 1174 memset(hdr, 0, sizeof(*hdr)); 1175 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS; 1176 if (wlvif->sta.qos) 1177 fc |= IEEE80211_STYPE_QOS_DATA; 1178 else 1179 fc |= IEEE80211_STYPE_DATA; 1180 if (wlvif->encryption_type != KEY_NONE) 1181 fc |= IEEE80211_FCTL_PROTECTED; 1182 1183 hdr->frame_control = cpu_to_le16(fc); 1184 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN); 1185 memcpy(hdr->addr2, vif->addr, ETH_ALEN); 1186 memset(hdr->addr3, 0xff, ETH_ALEN); 1187 1188 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP, 1189 skb->data, skb->len, 0, 1190 wlvif->basic_rate); 1191 out: 1192 dev_kfree_skb(skb); 1193 return ret; 1194 } 1195 1196 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif) 1197 { 1198 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 1199 struct ieee80211_qos_hdr template; 1200 1201 memset(&template, 0, sizeof(template)); 1202 1203 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN); 1204 memcpy(template.addr2, vif->addr, ETH_ALEN); 1205 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN); 1206 1207 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 1208 IEEE80211_STYPE_QOS_NULLFUNC | 1209 IEEE80211_FCTL_TODS); 1210 1211 /* FIXME: not sure what priority to use here */ 1212 template.qos_ctrl = cpu_to_le16(0); 1213 1214 return wl1271_cmd_template_set(wl, wlvif->role_id, 1215 CMD_TEMPL_QOS_NULL_DATA, &template, 1216 sizeof(template), 0, 1217 wlvif->basic_rate); 1218 } 1219 1220 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid) 1221 { 1222 struct wl1271_cmd_set_keys *cmd; 1223 int ret = 0; 1224 1225 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id); 1226 1227 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1228 if (!cmd) { 1229 ret = -ENOMEM; 1230 goto out; 1231 } 1232 1233 cmd->hlid = hlid; 1234 cmd->key_id = id; 1235 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1236 cmd->key_action = cpu_to_le16(KEY_SET_ID); 1237 cmd->key_type = KEY_WEP; 1238 1239 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1240 if (ret < 0) { 1241 wl1271_warning("cmd set_default_wep_key failed: %d", ret); 1242 goto out; 1243 } 1244 1245 out: 1246 kfree(cmd); 1247 1248 return ret; 1249 } 1250 1251 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1252 u16 action, u8 id, u8 key_type, 1253 u8 key_size, const u8 *key, const u8 *addr, 1254 u32 tx_seq_32, u16 tx_seq_16) 1255 { 1256 struct wl1271_cmd_set_keys *cmd; 1257 int ret = 0; 1258 1259 /* hlid might have already been deleted */ 1260 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) 1261 return 0; 1262 1263 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1264 if (!cmd) { 1265 ret = -ENOMEM; 1266 goto out; 1267 } 1268 1269 cmd->hlid = wlvif->sta.hlid; 1270 1271 if (key_type == KEY_WEP) 1272 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1273 else if (is_broadcast_ether_addr(addr)) 1274 cmd->lid_key_type = BROADCAST_LID_TYPE; 1275 else 1276 cmd->lid_key_type = UNICAST_LID_TYPE; 1277 1278 cmd->key_action = cpu_to_le16(action); 1279 cmd->key_size = key_size; 1280 cmd->key_type = key_type; 1281 1282 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1283 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1284 1285 cmd->key_id = id; 1286 1287 if (key_type == KEY_TKIP) { 1288 /* 1289 * We get the key in the following form: 1290 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1291 * but the target is expecting: 1292 * TKIP - RX MIC - TX MIC 1293 */ 1294 memcpy(cmd->key, key, 16); 1295 memcpy(cmd->key + 16, key + 24, 8); 1296 memcpy(cmd->key + 24, key + 16, 8); 1297 1298 } else { 1299 memcpy(cmd->key, key, key_size); 1300 } 1301 1302 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd)); 1303 1304 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1305 if (ret < 0) { 1306 wl1271_warning("could not set keys"); 1307 goto out; 1308 } 1309 1310 out: 1311 kfree(cmd); 1312 1313 return ret; 1314 } 1315 1316 /* 1317 * TODO: merge with sta/ibss into 1 set_key function. 1318 * note there are slight diffs 1319 */ 1320 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1321 u16 action, u8 id, u8 key_type, 1322 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32, 1323 u16 tx_seq_16) 1324 { 1325 struct wl1271_cmd_set_keys *cmd; 1326 int ret = 0; 1327 u8 lid_type; 1328 1329 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1330 if (!cmd) 1331 return -ENOMEM; 1332 1333 if (hlid == wlvif->ap.bcast_hlid) { 1334 if (key_type == KEY_WEP) 1335 lid_type = WEP_DEFAULT_LID_TYPE; 1336 else 1337 lid_type = BROADCAST_LID_TYPE; 1338 } else { 1339 lid_type = UNICAST_LID_TYPE; 1340 } 1341 1342 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d" 1343 " hlid: %d", (int)action, (int)id, (int)lid_type, 1344 (int)key_type, (int)hlid); 1345 1346 cmd->lid_key_type = lid_type; 1347 cmd->hlid = hlid; 1348 cmd->key_action = cpu_to_le16(action); 1349 cmd->key_size = key_size; 1350 cmd->key_type = key_type; 1351 cmd->key_id = id; 1352 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1353 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1354 1355 if (key_type == KEY_TKIP) { 1356 /* 1357 * We get the key in the following form: 1358 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1359 * but the target is expecting: 1360 * TKIP - RX MIC - TX MIC 1361 */ 1362 memcpy(cmd->key, key, 16); 1363 memcpy(cmd->key + 16, key + 24, 8); 1364 memcpy(cmd->key + 24, key + 16, 8); 1365 } else { 1366 memcpy(cmd->key, key, key_size); 1367 } 1368 1369 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd)); 1370 1371 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1372 if (ret < 0) { 1373 wl1271_warning("could not set ap keys"); 1374 goto out; 1375 } 1376 1377 out: 1378 kfree(cmd); 1379 return ret; 1380 } 1381 1382 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, u8 hlid) 1383 { 1384 struct wl12xx_cmd_set_peer_state *cmd; 1385 int ret = 0; 1386 1387 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid); 1388 1389 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1390 if (!cmd) { 1391 ret = -ENOMEM; 1392 goto out; 1393 } 1394 1395 cmd->hlid = hlid; 1396 cmd->state = WL1271_CMD_STA_STATE_CONNECTED; 1397 1398 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0); 1399 if (ret < 0) { 1400 wl1271_error("failed to send set peer state command"); 1401 goto out_free; 1402 } 1403 1404 out_free: 1405 kfree(cmd); 1406 1407 out: 1408 return ret; 1409 } 1410 1411 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1412 struct ieee80211_sta *sta, u8 hlid) 1413 { 1414 struct wl12xx_cmd_add_peer *cmd; 1415 int i, ret; 1416 u32 sta_rates; 1417 1418 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid); 1419 1420 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1421 if (!cmd) { 1422 ret = -ENOMEM; 1423 goto out; 1424 } 1425 1426 memcpy(cmd->addr, sta->addr, ETH_ALEN); 1427 cmd->bss_index = WL1271_AP_BSS_INDEX; 1428 cmd->aid = sta->aid; 1429 cmd->hlid = hlid; 1430 cmd->sp_len = sta->max_sp; 1431 cmd->wmm = sta->wme ? 1 : 0; 1432 1433 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++) 1434 if (sta->wme && (sta->uapsd_queues & BIT(i))) 1435 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1436 WL1271_PSD_UPSD_TRIGGER; 1437 else 1438 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1439 WL1271_PSD_LEGACY; 1440 1441 1442 sta_rates = sta->supp_rates[wlvif->band]; 1443 if (sta->ht_cap.ht_supported) 1444 sta_rates |= 1445 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) | 1446 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET); 1447 1448 cmd->supported_rates = 1449 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates, 1450 wlvif->band)); 1451 1452 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x", 1453 cmd->supported_rates, sta->uapsd_queues); 1454 1455 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0); 1456 if (ret < 0) { 1457 wl1271_error("failed to initiate cmd add peer"); 1458 goto out_free; 1459 } 1460 1461 out_free: 1462 kfree(cmd); 1463 1464 out: 1465 return ret; 1466 } 1467 1468 int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid) 1469 { 1470 struct wl12xx_cmd_remove_peer *cmd; 1471 int ret; 1472 bool timeout = false; 1473 1474 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid); 1475 1476 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1477 if (!cmd) { 1478 ret = -ENOMEM; 1479 goto out; 1480 } 1481 1482 cmd->hlid = hlid; 1483 /* We never send a deauth, mac80211 is in charge of this */ 1484 cmd->reason_opcode = 0; 1485 cmd->send_deauth_flag = 0; 1486 1487 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0); 1488 if (ret < 0) { 1489 wl1271_error("failed to initiate cmd remove peer"); 1490 goto out_free; 1491 } 1492 1493 ret = wl1271_cmd_wait_for_event_or_timeout(wl, 1494 PEER_REMOVE_COMPLETE_EVENT_ID, 1495 &timeout); 1496 /* 1497 * We are ok with a timeout here. The event is sometimes not sent 1498 * due to a firmware bug. In case of another error (like SDIO timeout) 1499 * queue a recovery. 1500 */ 1501 if (ret) 1502 wl12xx_queue_recovery_work(wl); 1503 1504 out_free: 1505 kfree(cmd); 1506 1507 out: 1508 return ret; 1509 } 1510 1511 int wl12xx_cmd_config_fwlog(struct wl1271 *wl) 1512 { 1513 struct wl12xx_cmd_config_fwlog *cmd; 1514 int ret = 0; 1515 1516 wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); 1517 1518 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1519 if (!cmd) { 1520 ret = -ENOMEM; 1521 goto out; 1522 } 1523 1524 cmd->logger_mode = wl->conf.fwlog.mode; 1525 cmd->log_severity = wl->conf.fwlog.severity; 1526 cmd->timestamp = wl->conf.fwlog.timestamp; 1527 cmd->output = wl->conf.fwlog.output; 1528 cmd->threshold = wl->conf.fwlog.threshold; 1529 1530 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); 1531 if (ret < 0) { 1532 wl1271_error("failed to send config firmware logger command"); 1533 goto out_free; 1534 } 1535 1536 out_free: 1537 kfree(cmd); 1538 1539 out: 1540 return ret; 1541 } 1542 1543 int wl12xx_cmd_start_fwlog(struct wl1271 *wl) 1544 { 1545 struct wl12xx_cmd_start_fwlog *cmd; 1546 int ret = 0; 1547 1548 wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); 1549 1550 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1551 if (!cmd) { 1552 ret = -ENOMEM; 1553 goto out; 1554 } 1555 1556 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); 1557 if (ret < 0) { 1558 wl1271_error("failed to send start firmware logger command"); 1559 goto out_free; 1560 } 1561 1562 out_free: 1563 kfree(cmd); 1564 1565 out: 1566 return ret; 1567 } 1568 1569 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) 1570 { 1571 struct wl12xx_cmd_stop_fwlog *cmd; 1572 int ret = 0; 1573 1574 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); 1575 1576 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1577 if (!cmd) { 1578 ret = -ENOMEM; 1579 goto out; 1580 } 1581 1582 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); 1583 if (ret < 0) { 1584 wl1271_error("failed to send stop firmware logger command"); 1585 goto out_free; 1586 } 1587 1588 out_free: 1589 kfree(cmd); 1590 1591 out: 1592 return ret; 1593 } 1594 1595 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1596 u8 role_id, enum ieee80211_band band, u8 channel) 1597 { 1598 struct wl12xx_cmd_roc *cmd; 1599 int ret = 0; 1600 1601 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id); 1602 1603 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID)) 1604 return -EINVAL; 1605 1606 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1607 if (!cmd) { 1608 ret = -ENOMEM; 1609 goto out; 1610 } 1611 1612 cmd->role_id = role_id; 1613 cmd->channel = channel; 1614 switch (band) { 1615 case IEEE80211_BAND_2GHZ: 1616 cmd->band = WLCORE_BAND_2_4GHZ; 1617 break; 1618 case IEEE80211_BAND_5GHZ: 1619 cmd->band = WLCORE_BAND_5GHZ; 1620 break; 1621 default: 1622 wl1271_error("roc - unknown band: %d", (int)wlvif->band); 1623 ret = -EINVAL; 1624 goto out_free; 1625 } 1626 1627 1628 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0); 1629 if (ret < 0) { 1630 wl1271_error("failed to send ROC command"); 1631 goto out_free; 1632 } 1633 1634 out_free: 1635 kfree(cmd); 1636 1637 out: 1638 return ret; 1639 } 1640 1641 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id) 1642 { 1643 struct wl12xx_cmd_croc *cmd; 1644 int ret = 0; 1645 1646 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id); 1647 1648 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1649 if (!cmd) { 1650 ret = -ENOMEM; 1651 goto out; 1652 } 1653 cmd->role_id = role_id; 1654 1655 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd, 1656 sizeof(*cmd), 0); 1657 if (ret < 0) { 1658 wl1271_error("failed to send ROC command"); 1659 goto out_free; 1660 } 1661 1662 out_free: 1663 kfree(cmd); 1664 1665 out: 1666 return ret; 1667 } 1668 1669 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id, 1670 enum ieee80211_band band, u8 channel) 1671 { 1672 int ret = 0; 1673 1674 if (WARN_ON(test_bit(role_id, wl->roc_map))) 1675 return 0; 1676 1677 ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel); 1678 if (ret < 0) 1679 goto out; 1680 1681 __set_bit(role_id, wl->roc_map); 1682 out: 1683 return ret; 1684 } 1685 1686 int wl12xx_croc(struct wl1271 *wl, u8 role_id) 1687 { 1688 int ret = 0; 1689 1690 if (WARN_ON(!test_bit(role_id, wl->roc_map))) 1691 return 0; 1692 1693 ret = wl12xx_cmd_croc(wl, role_id); 1694 if (ret < 0) 1695 goto out; 1696 1697 __clear_bit(role_id, wl->roc_map); 1698 1699 /* 1700 * Rearm the tx watchdog when removing the last ROC. This prevents 1701 * recoveries due to just finished ROCs - when Tx hasn't yet had 1702 * a chance to get out. 1703 */ 1704 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) 1705 wl12xx_rearm_tx_watchdog_locked(wl); 1706 out: 1707 return ret; 1708 } 1709 1710 int wl12xx_cmd_channel_switch(struct wl1271 *wl, 1711 struct wl12xx_vif *wlvif, 1712 struct ieee80211_channel_switch *ch_switch) 1713 { 1714 struct wl12xx_cmd_channel_switch *cmd; 1715 int ret; 1716 1717 wl1271_debug(DEBUG_ACX, "cmd channel switch"); 1718 1719 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1720 if (!cmd) { 1721 ret = -ENOMEM; 1722 goto out; 1723 } 1724 1725 cmd->role_id = wlvif->role_id; 1726 cmd->channel = ch_switch->channel->hw_value; 1727 cmd->switch_time = ch_switch->count; 1728 cmd->stop_tx = ch_switch->block_tx; 1729 1730 /* FIXME: control from mac80211 in the future */ 1731 cmd->post_switch_tx_disable = 0; /* Enable TX on the target channel */ 1732 1733 ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0); 1734 if (ret < 0) { 1735 wl1271_error("failed to send channel switch command"); 1736 goto out_free; 1737 } 1738 1739 out_free: 1740 kfree(cmd); 1741 1742 out: 1743 return ret; 1744 } 1745 1746 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl) 1747 { 1748 struct wl12xx_cmd_stop_channel_switch *cmd; 1749 int ret; 1750 1751 wl1271_debug(DEBUG_ACX, "cmd stop channel switch"); 1752 1753 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1754 if (!cmd) { 1755 ret = -ENOMEM; 1756 goto out; 1757 } 1758 1759 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0); 1760 if (ret < 0) { 1761 wl1271_error("failed to stop channel switch command"); 1762 goto out_free; 1763 } 1764 1765 out_free: 1766 kfree(cmd); 1767 1768 out: 1769 return ret; 1770 } 1771 1772 /* start dev role and roc on its channel */ 1773 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1774 enum ieee80211_band band, int channel) 1775 { 1776 int ret; 1777 1778 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1779 wlvif->bss_type == BSS_TYPE_IBSS))) 1780 return -EINVAL; 1781 1782 ret = wl12xx_cmd_role_enable(wl, 1783 wl12xx_wlvif_to_vif(wlvif)->addr, 1784 WL1271_ROLE_DEVICE, 1785 &wlvif->dev_role_id); 1786 if (ret < 0) 1787 goto out; 1788 1789 ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel); 1790 if (ret < 0) 1791 goto out_disable; 1792 1793 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel); 1794 if (ret < 0) 1795 goto out_stop; 1796 1797 return 0; 1798 1799 out_stop: 1800 wl12xx_cmd_role_stop_dev(wl, wlvif); 1801 out_disable: 1802 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 1803 out: 1804 return ret; 1805 } 1806 1807 /* croc dev hlid, and stop the role */ 1808 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1809 { 1810 int ret; 1811 1812 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1813 wlvif->bss_type == BSS_TYPE_IBSS))) 1814 return -EINVAL; 1815 1816 /* flush all pending packets */ 1817 ret = wlcore_tx_work_locked(wl); 1818 if (ret < 0) 1819 goto out; 1820 1821 if (test_bit(wlvif->dev_role_id, wl->roc_map)) { 1822 ret = wl12xx_croc(wl, wlvif->dev_role_id); 1823 if (ret < 0) 1824 goto out; 1825 } 1826 1827 ret = wl12xx_cmd_role_stop_dev(wl, wlvif); 1828 if (ret < 0) 1829 goto out; 1830 1831 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 1832 if (ret < 0) 1833 goto out; 1834 1835 out: 1836 return ret; 1837 } 1838