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 { 350 struct wl12xx_cmd_role_start *cmd; 351 int ret; 352 353 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 354 if (!cmd) { 355 ret = -ENOMEM; 356 goto out; 357 } 358 359 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id); 360 361 cmd->role_id = wlvif->dev_role_id; 362 if (wlvif->band == IEEE80211_BAND_5GHZ) 363 cmd->band = WLCORE_BAND_5GHZ; 364 cmd->channel = wlvif->channel; 365 366 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) { 367 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid); 368 if (ret) 369 goto out_free; 370 } 371 cmd->device.hlid = wlvif->dev_hlid; 372 cmd->device.session = wl12xx_get_new_session_id(wl, wlvif); 373 374 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d", 375 cmd->role_id, cmd->device.hlid, cmd->device.session); 376 377 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 378 if (ret < 0) { 379 wl1271_error("failed to initiate cmd role enable"); 380 goto err_hlid; 381 } 382 383 goto out_free; 384 385 err_hlid: 386 /* clear links on error */ 387 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 388 389 out_free: 390 kfree(cmd); 391 392 out: 393 return ret; 394 } 395 396 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, 397 struct wl12xx_vif *wlvif) 398 { 399 struct wl12xx_cmd_role_stop *cmd; 400 int ret; 401 402 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID)) 403 return -EINVAL; 404 405 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 406 if (!cmd) { 407 ret = -ENOMEM; 408 goto out; 409 } 410 411 wl1271_debug(DEBUG_CMD, "cmd role stop dev"); 412 413 cmd->role_id = wlvif->dev_role_id; 414 cmd->disc_type = DISCONNECT_IMMEDIATE; 415 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 416 417 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 418 if (ret < 0) { 419 wl1271_error("failed to initiate cmd role stop"); 420 goto out_free; 421 } 422 423 ret = wl1271_cmd_wait_for_event(wl, ROLE_STOP_COMPLETE_EVENT_ID); 424 if (ret < 0) { 425 wl1271_error("cmd role stop dev event completion error"); 426 goto out_free; 427 } 428 429 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 430 431 out_free: 432 kfree(cmd); 433 434 out: 435 return ret; 436 } 437 438 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 439 { 440 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 441 struct wl12xx_cmd_role_start *cmd; 442 int ret; 443 444 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 445 if (!cmd) { 446 ret = -ENOMEM; 447 goto out; 448 } 449 450 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id); 451 452 cmd->role_id = wlvif->role_id; 453 if (wlvif->band == IEEE80211_BAND_5GHZ) 454 cmd->band = WLCORE_BAND_5GHZ; 455 cmd->channel = wlvif->channel; 456 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 457 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int); 458 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY; 459 cmd->sta.ssid_len = wlvif->ssid_len; 460 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len); 461 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN); 462 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 463 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 464 465 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 466 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 467 if (ret) 468 goto out_free; 469 } 470 cmd->sta.hlid = wlvif->sta.hlid; 471 cmd->sta.session = wl12xx_get_new_session_id(wl, wlvif); 472 cmd->sta.remote_rates = cpu_to_le32(wlvif->rate_set); 473 474 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 475 "basic_rate_set: 0x%x, remote_rates: 0x%x", 476 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 477 wlvif->basic_rate_set, wlvif->rate_set); 478 479 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 480 if (ret < 0) { 481 wl1271_error("failed to initiate cmd role start sta"); 482 goto err_hlid; 483 } 484 485 goto out_free; 486 487 err_hlid: 488 /* clear links on error. */ 489 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 490 491 out_free: 492 kfree(cmd); 493 494 out: 495 return ret; 496 } 497 498 /* use this function to stop ibss as well */ 499 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 500 { 501 struct wl12xx_cmd_role_stop *cmd; 502 int ret; 503 bool timeout = false; 504 505 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)) 506 return -EINVAL; 507 508 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 509 if (!cmd) { 510 ret = -ENOMEM; 511 goto out; 512 } 513 514 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id); 515 516 cmd->role_id = wlvif->role_id; 517 cmd->disc_type = DISCONNECT_IMMEDIATE; 518 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 519 520 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 521 if (ret < 0) { 522 wl1271_error("failed to initiate cmd role stop sta"); 523 goto out_free; 524 } 525 526 /* 527 * Sometimes the firmware doesn't send this event, so we just 528 * time out without failing. Queue recovery for other 529 * failures. 530 */ 531 ret = wl1271_cmd_wait_for_event_or_timeout(wl, 532 ROLE_STOP_COMPLETE_EVENT_ID, 533 &timeout); 534 if (ret) 535 wl12xx_queue_recovery_work(wl); 536 537 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 538 539 out_free: 540 kfree(cmd); 541 542 out: 543 return ret; 544 } 545 546 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 547 { 548 struct wl12xx_cmd_role_start *cmd; 549 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 550 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 551 u32 supported_rates; 552 int ret; 553 554 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id); 555 556 /* trying to use hidden SSID with an old hostapd version */ 557 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) { 558 wl1271_error("got a null SSID from beacon/bss"); 559 ret = -EINVAL; 560 goto out; 561 } 562 563 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 564 if (!cmd) { 565 ret = -ENOMEM; 566 goto out; 567 } 568 569 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid); 570 if (ret < 0) 571 goto out_free; 572 573 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid); 574 if (ret < 0) 575 goto out_free_global; 576 577 cmd->role_id = wlvif->role_id; 578 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period); 579 cmd->ap.bss_index = WL1271_AP_BSS_INDEX; 580 cmd->ap.global_hlid = wlvif->ap.global_hlid; 581 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid; 582 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 583 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int); 584 cmd->ap.dtim_interval = bss_conf->dtim_period; 585 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP; 586 /* FIXME: Change when adding DFS */ 587 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */ 588 cmd->channel = wlvif->channel; 589 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 590 591 if (!bss_conf->hidden_ssid) { 592 /* take the SSID from the beacon for backward compatibility */ 593 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC; 594 cmd->ap.ssid_len = wlvif->ssid_len; 595 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len); 596 } else { 597 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN; 598 cmd->ap.ssid_len = bss_conf->ssid_len; 599 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len); 600 } 601 602 supported_rates = CONF_TX_AP_ENABLED_RATES | CONF_TX_MCS_RATES | 603 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif); 604 605 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x", 606 supported_rates); 607 608 cmd->ap.local_rates = cpu_to_le32(supported_rates); 609 610 switch (wlvif->band) { 611 case IEEE80211_BAND_2GHZ: 612 cmd->band = WLCORE_BAND_2_4GHZ; 613 break; 614 case IEEE80211_BAND_5GHZ: 615 cmd->band = WLCORE_BAND_5GHZ; 616 break; 617 default: 618 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band); 619 cmd->band = WLCORE_BAND_2_4GHZ; 620 break; 621 } 622 623 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 624 if (ret < 0) { 625 wl1271_error("failed to initiate cmd role start ap"); 626 goto out_free_bcast; 627 } 628 629 goto out_free; 630 631 out_free_bcast: 632 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 633 634 out_free_global: 635 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 636 637 out_free: 638 kfree(cmd); 639 640 out: 641 return ret; 642 } 643 644 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 645 { 646 struct wl12xx_cmd_role_stop *cmd; 647 int ret; 648 649 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 650 if (!cmd) { 651 ret = -ENOMEM; 652 goto out; 653 } 654 655 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id); 656 657 cmd->role_id = wlvif->role_id; 658 659 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 660 if (ret < 0) { 661 wl1271_error("failed to initiate cmd role stop ap"); 662 goto out_free; 663 } 664 665 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 666 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 667 668 out_free: 669 kfree(cmd); 670 671 out: 672 return ret; 673 } 674 675 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif) 676 { 677 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 678 struct wl12xx_cmd_role_start *cmd; 679 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 680 int ret; 681 682 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 683 if (!cmd) { 684 ret = -ENOMEM; 685 goto out; 686 } 687 688 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id); 689 690 cmd->role_id = wlvif->role_id; 691 if (wlvif->band == IEEE80211_BAND_5GHZ) 692 cmd->band = WLCORE_BAND_5GHZ; 693 cmd->channel = wlvif->channel; 694 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 695 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int); 696 cmd->ibss.dtim_interval = bss_conf->dtim_period; 697 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY; 698 cmd->ibss.ssid_len = wlvif->ssid_len; 699 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len); 700 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN); 701 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 702 703 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 704 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 705 if (ret) 706 goto out_free; 707 } 708 cmd->ibss.hlid = wlvif->sta.hlid; 709 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set); 710 711 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 712 "basic_rate_set: 0x%x, remote_rates: 0x%x", 713 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 714 wlvif->basic_rate_set, wlvif->rate_set); 715 716 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM", 717 vif->bss_conf.bssid); 718 719 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 720 if (ret < 0) { 721 wl1271_error("failed to initiate cmd role enable"); 722 goto err_hlid; 723 } 724 725 goto out_free; 726 727 err_hlid: 728 /* clear links on error. */ 729 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 730 731 out_free: 732 kfree(cmd); 733 734 out: 735 return ret; 736 } 737 738 739 /** 740 * send test command to firmware 741 * 742 * @wl: wl struct 743 * @buf: buffer containing the command, with all headers, must work with dma 744 * @len: length of the buffer 745 * @answer: is answer needed 746 */ 747 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer) 748 { 749 int ret; 750 size_t res_len = 0; 751 752 wl1271_debug(DEBUG_CMD, "cmd test"); 753 754 if (answer) 755 res_len = buf_len; 756 757 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len); 758 759 if (ret < 0) { 760 wl1271_warning("TEST command failed"); 761 return ret; 762 } 763 764 return ret; 765 } 766 EXPORT_SYMBOL_GPL(wl1271_cmd_test); 767 768 /** 769 * read acx from firmware 770 * 771 * @wl: wl struct 772 * @id: acx id 773 * @buf: buffer for the response, including all headers, must work with dma 774 * @len: length of buf 775 */ 776 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len) 777 { 778 struct acx_header *acx = buf; 779 int ret; 780 781 wl1271_debug(DEBUG_CMD, "cmd interrogate"); 782 783 acx->id = cpu_to_le16(id); 784 785 /* payload length, does not include any headers */ 786 acx->len = cpu_to_le16(len - sizeof(*acx)); 787 788 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len); 789 if (ret < 0) 790 wl1271_error("INTERROGATE command failed"); 791 792 return ret; 793 } 794 795 /** 796 * write acx value to firmware 797 * 798 * @wl: wl struct 799 * @id: acx id 800 * @buf: buffer containing acx, including all headers, must work with dma 801 * @len: length of buf 802 */ 803 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len) 804 { 805 struct acx_header *acx = buf; 806 int ret; 807 808 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id); 809 810 acx->id = cpu_to_le16(id); 811 812 /* payload length, does not include any headers */ 813 acx->len = cpu_to_le16(len - sizeof(*acx)); 814 815 ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0); 816 if (ret < 0) { 817 wl1271_warning("CONFIGURE command NOK"); 818 return ret; 819 } 820 821 return 0; 822 } 823 EXPORT_SYMBOL_GPL(wl1271_cmd_configure); 824 825 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable) 826 { 827 struct cmd_enabledisable_path *cmd; 828 int ret; 829 u16 cmd_rx, cmd_tx; 830 831 wl1271_debug(DEBUG_CMD, "cmd data path"); 832 833 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 834 if (!cmd) { 835 ret = -ENOMEM; 836 goto out; 837 } 838 839 /* the channel here is only used for calibration, so hardcoded to 1 */ 840 cmd->channel = 1; 841 842 if (enable) { 843 cmd_rx = CMD_ENABLE_RX; 844 cmd_tx = CMD_ENABLE_TX; 845 } else { 846 cmd_rx = CMD_DISABLE_RX; 847 cmd_tx = CMD_DISABLE_TX; 848 } 849 850 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0); 851 if (ret < 0) { 852 wl1271_error("rx %s cmd for channel %d failed", 853 enable ? "start" : "stop", cmd->channel); 854 goto out; 855 } 856 857 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d", 858 enable ? "start" : "stop", cmd->channel); 859 860 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0); 861 if (ret < 0) { 862 wl1271_error("tx %s cmd for channel %d failed", 863 enable ? "start" : "stop", cmd->channel); 864 goto out; 865 } 866 867 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d", 868 enable ? "start" : "stop", cmd->channel); 869 870 out: 871 kfree(cmd); 872 return ret; 873 } 874 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path); 875 876 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif, 877 u8 ps_mode, u16 auto_ps_timeout) 878 { 879 struct wl1271_cmd_ps_params *ps_params = NULL; 880 int ret = 0; 881 882 wl1271_debug(DEBUG_CMD, "cmd set ps mode"); 883 884 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL); 885 if (!ps_params) { 886 ret = -ENOMEM; 887 goto out; 888 } 889 890 ps_params->role_id = wlvif->role_id; 891 ps_params->ps_mode = ps_mode; 892 ps_params->auto_ps_timeout = auto_ps_timeout; 893 894 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params, 895 sizeof(*ps_params), 0); 896 if (ret < 0) { 897 wl1271_error("cmd set_ps_mode failed"); 898 goto out; 899 } 900 901 out: 902 kfree(ps_params); 903 return ret; 904 } 905 906 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id, 907 u16 template_id, void *buf, size_t buf_len, 908 int index, u32 rates) 909 { 910 struct wl1271_cmd_template_set *cmd; 911 int ret = 0; 912 913 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)", 914 template_id, role_id); 915 916 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE); 917 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE); 918 919 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 920 if (!cmd) { 921 ret = -ENOMEM; 922 goto out; 923 } 924 925 /* during initialization wlvif is NULL */ 926 cmd->role_id = role_id; 927 cmd->len = cpu_to_le16(buf_len); 928 cmd->template_type = template_id; 929 cmd->enabled_rates = cpu_to_le32(rates); 930 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit; 931 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit; 932 cmd->index = index; 933 934 if (buf) 935 memcpy(cmd->template_data, buf, buf_len); 936 937 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0); 938 if (ret < 0) { 939 wl1271_warning("cmd set_template failed: %d", ret); 940 goto out_free; 941 } 942 943 out_free: 944 kfree(cmd); 945 946 out: 947 return ret; 948 } 949 950 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) 951 { 952 struct sk_buff *skb = NULL; 953 int size; 954 void *ptr; 955 int ret = -ENOMEM; 956 957 958 if (wlvif->bss_type == BSS_TYPE_IBSS) { 959 size = sizeof(struct wl12xx_null_data_template); 960 ptr = NULL; 961 } else { 962 skb = ieee80211_nullfunc_get(wl->hw, 963 wl12xx_wlvif_to_vif(wlvif)); 964 if (!skb) 965 goto out; 966 size = skb->len; 967 ptr = skb->data; 968 } 969 970 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 971 CMD_TEMPL_NULL_DATA, ptr, size, 0, 972 wlvif->basic_rate); 973 974 out: 975 dev_kfree_skb(skb); 976 if (ret) 977 wl1271_warning("cmd buld null data failed %d", ret); 978 979 return ret; 980 981 } 982 983 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, 984 struct wl12xx_vif *wlvif) 985 { 986 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 987 struct sk_buff *skb = NULL; 988 int ret = -ENOMEM; 989 990 skb = ieee80211_nullfunc_get(wl->hw, vif); 991 if (!skb) 992 goto out; 993 994 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV, 995 skb->data, skb->len, 996 CMD_TEMPL_KLV_IDX_NULL_DATA, 997 wlvif->basic_rate); 998 999 out: 1000 dev_kfree_skb(skb); 1001 if (ret) 1002 wl1271_warning("cmd build klv null data failed %d", ret); 1003 1004 return ret; 1005 1006 } 1007 1008 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1009 u16 aid) 1010 { 1011 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1012 struct sk_buff *skb; 1013 int ret = 0; 1014 1015 skb = ieee80211_pspoll_get(wl->hw, vif); 1016 if (!skb) 1017 goto out; 1018 1019 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1020 CMD_TEMPL_PS_POLL, skb->data, 1021 skb->len, 0, wlvif->basic_rate_set); 1022 1023 out: 1024 dev_kfree_skb(skb); 1025 return ret; 1026 } 1027 1028 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1029 u8 role_id, u8 band, 1030 const u8 *ssid, size_t ssid_len, 1031 const u8 *ie, size_t ie_len, bool sched_scan) 1032 { 1033 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1034 struct sk_buff *skb; 1035 int ret; 1036 u32 rate; 1037 u16 template_id_2_4 = CMD_TEMPL_CFG_PROBE_REQ_2_4; 1038 u16 template_id_5 = CMD_TEMPL_CFG_PROBE_REQ_5; 1039 1040 skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len, 1041 ie, ie_len); 1042 if (!skb) { 1043 ret = -ENOMEM; 1044 goto out; 1045 } 1046 1047 wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len); 1048 1049 if (!sched_scan && 1050 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) { 1051 template_id_2_4 = CMD_TEMPL_APP_PROBE_REQ_2_4; 1052 template_id_5 = CMD_TEMPL_APP_PROBE_REQ_5; 1053 } 1054 1055 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]); 1056 if (band == IEEE80211_BAND_2GHZ) 1057 ret = wl1271_cmd_template_set(wl, role_id, 1058 template_id_2_4, 1059 skb->data, skb->len, 0, rate); 1060 else 1061 ret = wl1271_cmd_template_set(wl, role_id, 1062 template_id_5, 1063 skb->data, skb->len, 0, rate); 1064 1065 out: 1066 dev_kfree_skb(skb); 1067 return ret; 1068 } 1069 1070 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl, 1071 struct wl12xx_vif *wlvif, 1072 struct sk_buff *skb) 1073 { 1074 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1075 int ret; 1076 u32 rate; 1077 1078 if (!skb) 1079 skb = ieee80211_ap_probereq_get(wl->hw, vif); 1080 if (!skb) 1081 goto out; 1082 1083 wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len); 1084 1085 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]); 1086 if (wlvif->band == IEEE80211_BAND_2GHZ) 1087 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1088 CMD_TEMPL_CFG_PROBE_REQ_2_4, 1089 skb->data, skb->len, 0, rate); 1090 else 1091 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1092 CMD_TEMPL_CFG_PROBE_REQ_5, 1093 skb->data, skb->len, 0, rate); 1094 1095 if (ret < 0) 1096 wl1271_error("Unable to set ap probe request template."); 1097 1098 out: 1099 return skb; 1100 } 1101 1102 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1103 { 1104 int ret, extra = 0; 1105 u16 fc; 1106 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1107 struct sk_buff *skb; 1108 struct wl12xx_arp_rsp_template *tmpl; 1109 struct ieee80211_hdr_3addr *hdr; 1110 struct arphdr *arp_hdr; 1111 1112 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) + 1113 WL1271_EXTRA_SPACE_MAX); 1114 if (!skb) { 1115 wl1271_error("failed to allocate buffer for arp rsp template"); 1116 return -ENOMEM; 1117 } 1118 1119 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX); 1120 1121 tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl)); 1122 memset(tmpl, 0, sizeof(*tmpl)); 1123 1124 /* llc layer */ 1125 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header)); 1126 tmpl->llc_type = cpu_to_be16(ETH_P_ARP); 1127 1128 /* arp header */ 1129 arp_hdr = &tmpl->arp_hdr; 1130 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER); 1131 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP); 1132 arp_hdr->ar_hln = ETH_ALEN; 1133 arp_hdr->ar_pln = 4; 1134 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY); 1135 1136 /* arp payload */ 1137 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN); 1138 tmpl->sender_ip = wlvif->ip_addr; 1139 1140 /* encryption space */ 1141 switch (wlvif->encryption_type) { 1142 case KEY_TKIP: 1143 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) 1144 extra = WL1271_EXTRA_SPACE_TKIP; 1145 break; 1146 case KEY_AES: 1147 extra = WL1271_EXTRA_SPACE_AES; 1148 break; 1149 case KEY_NONE: 1150 case KEY_WEP: 1151 case KEY_GEM: 1152 extra = 0; 1153 break; 1154 default: 1155 wl1271_warning("Unknown encryption type: %d", 1156 wlvif->encryption_type); 1157 ret = -EINVAL; 1158 goto out; 1159 } 1160 1161 if (extra) { 1162 u8 *space = skb_push(skb, extra); 1163 memset(space, 0, extra); 1164 } 1165 1166 /* QoS header - BE */ 1167 if (wlvif->sta.qos) 1168 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16)); 1169 1170 /* mac80211 header */ 1171 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr)); 1172 memset(hdr, 0, sizeof(*hdr)); 1173 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS; 1174 if (wlvif->sta.qos) 1175 fc |= IEEE80211_STYPE_QOS_DATA; 1176 else 1177 fc |= IEEE80211_STYPE_DATA; 1178 if (wlvif->encryption_type != KEY_NONE) 1179 fc |= IEEE80211_FCTL_PROTECTED; 1180 1181 hdr->frame_control = cpu_to_le16(fc); 1182 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN); 1183 memcpy(hdr->addr2, vif->addr, ETH_ALEN); 1184 memset(hdr->addr3, 0xff, ETH_ALEN); 1185 1186 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP, 1187 skb->data, skb->len, 0, 1188 wlvif->basic_rate); 1189 out: 1190 dev_kfree_skb(skb); 1191 return ret; 1192 } 1193 1194 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif) 1195 { 1196 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 1197 struct ieee80211_qos_hdr template; 1198 1199 memset(&template, 0, sizeof(template)); 1200 1201 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN); 1202 memcpy(template.addr2, vif->addr, ETH_ALEN); 1203 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN); 1204 1205 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 1206 IEEE80211_STYPE_QOS_NULLFUNC | 1207 IEEE80211_FCTL_TODS); 1208 1209 /* FIXME: not sure what priority to use here */ 1210 template.qos_ctrl = cpu_to_le16(0); 1211 1212 return wl1271_cmd_template_set(wl, wlvif->role_id, 1213 CMD_TEMPL_QOS_NULL_DATA, &template, 1214 sizeof(template), 0, 1215 wlvif->basic_rate); 1216 } 1217 1218 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid) 1219 { 1220 struct wl1271_cmd_set_keys *cmd; 1221 int ret = 0; 1222 1223 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id); 1224 1225 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1226 if (!cmd) { 1227 ret = -ENOMEM; 1228 goto out; 1229 } 1230 1231 cmd->hlid = hlid; 1232 cmd->key_id = id; 1233 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1234 cmd->key_action = cpu_to_le16(KEY_SET_ID); 1235 cmd->key_type = KEY_WEP; 1236 1237 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1238 if (ret < 0) { 1239 wl1271_warning("cmd set_default_wep_key failed: %d", ret); 1240 goto out; 1241 } 1242 1243 out: 1244 kfree(cmd); 1245 1246 return ret; 1247 } 1248 1249 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1250 u16 action, u8 id, u8 key_type, 1251 u8 key_size, const u8 *key, const u8 *addr, 1252 u32 tx_seq_32, u16 tx_seq_16) 1253 { 1254 struct wl1271_cmd_set_keys *cmd; 1255 int ret = 0; 1256 1257 /* hlid might have already been deleted */ 1258 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) 1259 return 0; 1260 1261 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1262 if (!cmd) { 1263 ret = -ENOMEM; 1264 goto out; 1265 } 1266 1267 cmd->hlid = wlvif->sta.hlid; 1268 1269 if (key_type == KEY_WEP) 1270 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1271 else if (is_broadcast_ether_addr(addr)) 1272 cmd->lid_key_type = BROADCAST_LID_TYPE; 1273 else 1274 cmd->lid_key_type = UNICAST_LID_TYPE; 1275 1276 cmd->key_action = cpu_to_le16(action); 1277 cmd->key_size = key_size; 1278 cmd->key_type = key_type; 1279 1280 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1281 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1282 1283 cmd->key_id = id; 1284 1285 if (key_type == KEY_TKIP) { 1286 /* 1287 * We get the key in the following form: 1288 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1289 * but the target is expecting: 1290 * TKIP - RX MIC - TX MIC 1291 */ 1292 memcpy(cmd->key, key, 16); 1293 memcpy(cmd->key + 16, key + 24, 8); 1294 memcpy(cmd->key + 24, key + 16, 8); 1295 1296 } else { 1297 memcpy(cmd->key, key, key_size); 1298 } 1299 1300 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd)); 1301 1302 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1303 if (ret < 0) { 1304 wl1271_warning("could not set keys"); 1305 goto out; 1306 } 1307 1308 out: 1309 kfree(cmd); 1310 1311 return ret; 1312 } 1313 1314 /* 1315 * TODO: merge with sta/ibss into 1 set_key function. 1316 * note there are slight diffs 1317 */ 1318 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1319 u16 action, u8 id, u8 key_type, 1320 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32, 1321 u16 tx_seq_16) 1322 { 1323 struct wl1271_cmd_set_keys *cmd; 1324 int ret = 0; 1325 u8 lid_type; 1326 1327 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1328 if (!cmd) 1329 return -ENOMEM; 1330 1331 if (hlid == wlvif->ap.bcast_hlid) { 1332 if (key_type == KEY_WEP) 1333 lid_type = WEP_DEFAULT_LID_TYPE; 1334 else 1335 lid_type = BROADCAST_LID_TYPE; 1336 } else { 1337 lid_type = UNICAST_LID_TYPE; 1338 } 1339 1340 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d" 1341 " hlid: %d", (int)action, (int)id, (int)lid_type, 1342 (int)key_type, (int)hlid); 1343 1344 cmd->lid_key_type = lid_type; 1345 cmd->hlid = hlid; 1346 cmd->key_action = cpu_to_le16(action); 1347 cmd->key_size = key_size; 1348 cmd->key_type = key_type; 1349 cmd->key_id = id; 1350 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1351 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1352 1353 if (key_type == KEY_TKIP) { 1354 /* 1355 * We get the key in the following form: 1356 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1357 * but the target is expecting: 1358 * TKIP - RX MIC - TX MIC 1359 */ 1360 memcpy(cmd->key, key, 16); 1361 memcpy(cmd->key + 16, key + 24, 8); 1362 memcpy(cmd->key + 24, key + 16, 8); 1363 } else { 1364 memcpy(cmd->key, key, key_size); 1365 } 1366 1367 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd)); 1368 1369 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1370 if (ret < 0) { 1371 wl1271_warning("could not set ap keys"); 1372 goto out; 1373 } 1374 1375 out: 1376 kfree(cmd); 1377 return ret; 1378 } 1379 1380 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, u8 hlid) 1381 { 1382 struct wl12xx_cmd_set_peer_state *cmd; 1383 int ret = 0; 1384 1385 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid); 1386 1387 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1388 if (!cmd) { 1389 ret = -ENOMEM; 1390 goto out; 1391 } 1392 1393 cmd->hlid = hlid; 1394 cmd->state = WL1271_CMD_STA_STATE_CONNECTED; 1395 1396 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0); 1397 if (ret < 0) { 1398 wl1271_error("failed to send set peer state command"); 1399 goto out_free; 1400 } 1401 1402 out_free: 1403 kfree(cmd); 1404 1405 out: 1406 return ret; 1407 } 1408 1409 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1410 struct ieee80211_sta *sta, u8 hlid) 1411 { 1412 struct wl12xx_cmd_add_peer *cmd; 1413 int i, ret; 1414 u32 sta_rates; 1415 1416 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid); 1417 1418 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1419 if (!cmd) { 1420 ret = -ENOMEM; 1421 goto out; 1422 } 1423 1424 memcpy(cmd->addr, sta->addr, ETH_ALEN); 1425 cmd->bss_index = WL1271_AP_BSS_INDEX; 1426 cmd->aid = sta->aid; 1427 cmd->hlid = hlid; 1428 cmd->sp_len = sta->max_sp; 1429 cmd->wmm = sta->wme ? 1 : 0; 1430 1431 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++) 1432 if (sta->wme && (sta->uapsd_queues & BIT(i))) 1433 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1434 WL1271_PSD_UPSD_TRIGGER; 1435 else 1436 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1437 WL1271_PSD_LEGACY; 1438 1439 1440 sta_rates = sta->supp_rates[wlvif->band]; 1441 if (sta->ht_cap.ht_supported) 1442 sta_rates |= 1443 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) | 1444 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET); 1445 1446 cmd->supported_rates = 1447 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates, 1448 wlvif->band)); 1449 1450 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x", 1451 cmd->supported_rates, sta->uapsd_queues); 1452 1453 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0); 1454 if (ret < 0) { 1455 wl1271_error("failed to initiate cmd add peer"); 1456 goto out_free; 1457 } 1458 1459 out_free: 1460 kfree(cmd); 1461 1462 out: 1463 return ret; 1464 } 1465 1466 int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid) 1467 { 1468 struct wl12xx_cmd_remove_peer *cmd; 1469 int ret; 1470 bool timeout = false; 1471 1472 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid); 1473 1474 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1475 if (!cmd) { 1476 ret = -ENOMEM; 1477 goto out; 1478 } 1479 1480 cmd->hlid = hlid; 1481 /* We never send a deauth, mac80211 is in charge of this */ 1482 cmd->reason_opcode = 0; 1483 cmd->send_deauth_flag = 0; 1484 1485 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0); 1486 if (ret < 0) { 1487 wl1271_error("failed to initiate cmd remove peer"); 1488 goto out_free; 1489 } 1490 1491 ret = wl1271_cmd_wait_for_event_or_timeout(wl, 1492 PEER_REMOVE_COMPLETE_EVENT_ID, 1493 &timeout); 1494 /* 1495 * We are ok with a timeout here. The event is sometimes not sent 1496 * due to a firmware bug. In case of another error (like SDIO timeout) 1497 * queue a recovery. 1498 */ 1499 if (ret) 1500 wl12xx_queue_recovery_work(wl); 1501 1502 out_free: 1503 kfree(cmd); 1504 1505 out: 1506 return ret; 1507 } 1508 1509 int wl12xx_cmd_config_fwlog(struct wl1271 *wl) 1510 { 1511 struct wl12xx_cmd_config_fwlog *cmd; 1512 int ret = 0; 1513 1514 wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); 1515 1516 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1517 if (!cmd) { 1518 ret = -ENOMEM; 1519 goto out; 1520 } 1521 1522 cmd->logger_mode = wl->conf.fwlog.mode; 1523 cmd->log_severity = wl->conf.fwlog.severity; 1524 cmd->timestamp = wl->conf.fwlog.timestamp; 1525 cmd->output = wl->conf.fwlog.output; 1526 cmd->threshold = wl->conf.fwlog.threshold; 1527 1528 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); 1529 if (ret < 0) { 1530 wl1271_error("failed to send config firmware logger command"); 1531 goto out_free; 1532 } 1533 1534 out_free: 1535 kfree(cmd); 1536 1537 out: 1538 return ret; 1539 } 1540 1541 int wl12xx_cmd_start_fwlog(struct wl1271 *wl) 1542 { 1543 struct wl12xx_cmd_start_fwlog *cmd; 1544 int ret = 0; 1545 1546 wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); 1547 1548 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1549 if (!cmd) { 1550 ret = -ENOMEM; 1551 goto out; 1552 } 1553 1554 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); 1555 if (ret < 0) { 1556 wl1271_error("failed to send start firmware logger command"); 1557 goto out_free; 1558 } 1559 1560 out_free: 1561 kfree(cmd); 1562 1563 out: 1564 return ret; 1565 } 1566 1567 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) 1568 { 1569 struct wl12xx_cmd_stop_fwlog *cmd; 1570 int ret = 0; 1571 1572 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); 1573 1574 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1575 if (!cmd) { 1576 ret = -ENOMEM; 1577 goto out; 1578 } 1579 1580 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); 1581 if (ret < 0) { 1582 wl1271_error("failed to send stop firmware logger command"); 1583 goto out_free; 1584 } 1585 1586 out_free: 1587 kfree(cmd); 1588 1589 out: 1590 return ret; 1591 } 1592 1593 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1594 u8 role_id) 1595 { 1596 struct wl12xx_cmd_roc *cmd; 1597 int ret = 0; 1598 1599 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", wlvif->channel, role_id); 1600 1601 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID)) 1602 return -EINVAL; 1603 1604 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1605 if (!cmd) { 1606 ret = -ENOMEM; 1607 goto out; 1608 } 1609 1610 cmd->role_id = role_id; 1611 cmd->channel = wlvif->channel; 1612 switch (wlvif->band) { 1613 case IEEE80211_BAND_2GHZ: 1614 cmd->band = WLCORE_BAND_2_4GHZ; 1615 break; 1616 case IEEE80211_BAND_5GHZ: 1617 cmd->band = WLCORE_BAND_5GHZ; 1618 break; 1619 default: 1620 wl1271_error("roc - unknown band: %d", (int)wlvif->band); 1621 ret = -EINVAL; 1622 goto out_free; 1623 } 1624 1625 1626 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0); 1627 if (ret < 0) { 1628 wl1271_error("failed to send ROC command"); 1629 goto out_free; 1630 } 1631 1632 out_free: 1633 kfree(cmd); 1634 1635 out: 1636 return ret; 1637 } 1638 1639 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id) 1640 { 1641 struct wl12xx_cmd_croc *cmd; 1642 int ret = 0; 1643 1644 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id); 1645 1646 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1647 if (!cmd) { 1648 ret = -ENOMEM; 1649 goto out; 1650 } 1651 cmd->role_id = role_id; 1652 1653 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd, 1654 sizeof(*cmd), 0); 1655 if (ret < 0) { 1656 wl1271_error("failed to send ROC command"); 1657 goto out_free; 1658 } 1659 1660 out_free: 1661 kfree(cmd); 1662 1663 out: 1664 return ret; 1665 } 1666 1667 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id) 1668 { 1669 int ret = 0; 1670 bool is_first_roc; 1671 1672 if (WARN_ON(test_bit(role_id, wl->roc_map))) 1673 return 0; 1674 1675 is_first_roc = (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= 1676 WL12XX_MAX_ROLES); 1677 1678 ret = wl12xx_cmd_roc(wl, wlvif, role_id); 1679 if (ret < 0) 1680 goto out; 1681 1682 if (is_first_roc) { 1683 ret = wl1271_cmd_wait_for_event(wl, 1684 REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID); 1685 if (ret < 0) { 1686 wl1271_error("cmd roc event completion error"); 1687 goto out; 1688 } 1689 } 1690 1691 __set_bit(role_id, wl->roc_map); 1692 out: 1693 return ret; 1694 } 1695 1696 int wl12xx_croc(struct wl1271 *wl, u8 role_id) 1697 { 1698 int ret = 0; 1699 1700 if (WARN_ON(!test_bit(role_id, wl->roc_map))) 1701 return 0; 1702 1703 ret = wl12xx_cmd_croc(wl, role_id); 1704 if (ret < 0) 1705 goto out; 1706 1707 __clear_bit(role_id, wl->roc_map); 1708 1709 /* 1710 * Rearm the tx watchdog when removing the last ROC. This prevents 1711 * recoveries due to just finished ROCs - when Tx hasn't yet had 1712 * a chance to get out. 1713 */ 1714 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) 1715 wl12xx_rearm_tx_watchdog_locked(wl); 1716 out: 1717 return ret; 1718 } 1719 1720 int wl12xx_cmd_channel_switch(struct wl1271 *wl, 1721 struct wl12xx_vif *wlvif, 1722 struct ieee80211_channel_switch *ch_switch) 1723 { 1724 struct wl12xx_cmd_channel_switch *cmd; 1725 int ret; 1726 1727 wl1271_debug(DEBUG_ACX, "cmd channel switch"); 1728 1729 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1730 if (!cmd) { 1731 ret = -ENOMEM; 1732 goto out; 1733 } 1734 1735 cmd->role_id = wlvif->role_id; 1736 cmd->channel = ch_switch->channel->hw_value; 1737 cmd->switch_time = ch_switch->count; 1738 cmd->stop_tx = ch_switch->block_tx; 1739 1740 /* FIXME: control from mac80211 in the future */ 1741 cmd->post_switch_tx_disable = 0; /* Enable TX on the target channel */ 1742 1743 ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0); 1744 if (ret < 0) { 1745 wl1271_error("failed to send channel switch command"); 1746 goto out_free; 1747 } 1748 1749 out_free: 1750 kfree(cmd); 1751 1752 out: 1753 return ret; 1754 } 1755 1756 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl) 1757 { 1758 struct wl12xx_cmd_stop_channel_switch *cmd; 1759 int ret; 1760 1761 wl1271_debug(DEBUG_ACX, "cmd stop channel switch"); 1762 1763 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1764 if (!cmd) { 1765 ret = -ENOMEM; 1766 goto out; 1767 } 1768 1769 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0); 1770 if (ret < 0) { 1771 wl1271_error("failed to stop channel switch command"); 1772 goto out_free; 1773 } 1774 1775 out_free: 1776 kfree(cmd); 1777 1778 out: 1779 return ret; 1780 } 1781 1782 /* start dev role and roc on its channel */ 1783 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1784 { 1785 int ret; 1786 1787 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1788 wlvif->bss_type == BSS_TYPE_IBSS))) 1789 return -EINVAL; 1790 1791 ret = wl12xx_cmd_role_start_dev(wl, wlvif); 1792 if (ret < 0) 1793 goto out; 1794 1795 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id); 1796 if (ret < 0) 1797 goto out_stop; 1798 1799 return 0; 1800 1801 out_stop: 1802 wl12xx_cmd_role_stop_dev(wl, wlvif); 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 out: 1831 return ret; 1832 } 1833