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