cmd.c revision 78e28062fea51c62280cd17fe6143ed583f83ba0
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 */ 52int 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 130fail: 131 wl12xx_queue_recovery_work(wl); 132 return ret; 133} 134EXPORT_SYMBOL_GPL(wl1271_cmd_send); 135 136/* 137 * Poll the mailbox event field until any of the bits in the mask is set or a 138 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs) 139 */ 140static int wl1271_cmd_wait_for_event_or_timeout(struct wl1271 *wl, 141 u32 mask, bool *timeout) 142{ 143 u32 *events_vector; 144 u32 event; 145 unsigned long timeout_time; 146 u16 poll_count = 0; 147 int ret = 0; 148 149 *timeout = false; 150 151 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA); 152 if (!events_vector) 153 return -ENOMEM; 154 155 timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT); 156 157 do { 158 if (time_after(jiffies, timeout_time)) { 159 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d", 160 (int)mask); 161 *timeout = true; 162 goto out; 163 } 164 165 poll_count++; 166 if (poll_count < WL1271_WAIT_EVENT_FAST_POLL_COUNT) 167 usleep_range(50, 51); 168 else 169 usleep_range(1000, 5000); 170 171 /* read from both event fields */ 172 ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector, 173 sizeof(*events_vector), false); 174 if (ret < 0) 175 goto out; 176 177 event = *events_vector & mask; 178 179 ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector, 180 sizeof(*events_vector), false); 181 if (ret < 0) 182 goto out; 183 184 event |= *events_vector & mask; 185 } while (!event); 186 187out: 188 kfree(events_vector); 189 return ret; 190} 191 192static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask) 193{ 194 int ret; 195 bool timeout = false; 196 197 ret = wl1271_cmd_wait_for_event_or_timeout(wl, mask, &timeout); 198 if (ret != 0 || timeout) { 199 wl12xx_queue_recovery_work(wl); 200 return ret; 201 } 202 203 return 0; 204} 205 206int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type, 207 u8 *role_id) 208{ 209 struct wl12xx_cmd_role_enable *cmd; 210 int ret; 211 212 wl1271_debug(DEBUG_CMD, "cmd role enable"); 213 214 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID)) 215 return -EBUSY; 216 217 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 218 if (!cmd) { 219 ret = -ENOMEM; 220 goto out; 221 } 222 223 /* get role id */ 224 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES); 225 if (cmd->role_id >= WL12XX_MAX_ROLES) { 226 ret = -EBUSY; 227 goto out_free; 228 } 229 230 memcpy(cmd->mac_address, addr, ETH_ALEN); 231 cmd->role_type = role_type; 232 233 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0); 234 if (ret < 0) { 235 wl1271_error("failed to initiate cmd role enable"); 236 goto out_free; 237 } 238 239 __set_bit(cmd->role_id, wl->roles_map); 240 *role_id = cmd->role_id; 241 242out_free: 243 kfree(cmd); 244 245out: 246 return ret; 247} 248 249int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id) 250{ 251 struct wl12xx_cmd_role_disable *cmd; 252 int ret; 253 254 wl1271_debug(DEBUG_CMD, "cmd role disable"); 255 256 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID)) 257 return -ENOENT; 258 259 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 260 if (!cmd) { 261 ret = -ENOMEM; 262 goto out; 263 } 264 cmd->role_id = *role_id; 265 266 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0); 267 if (ret < 0) { 268 wl1271_error("failed to initiate cmd role disable"); 269 goto out_free; 270 } 271 272 __clear_bit(*role_id, wl->roles_map); 273 *role_id = WL12XX_INVALID_ROLE_ID; 274 275out_free: 276 kfree(cmd); 277 278out: 279 return ret; 280} 281 282int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 283{ 284 unsigned long flags; 285 u8 link = find_first_zero_bit(wl->links_map, WL12XX_MAX_LINKS); 286 if (link >= WL12XX_MAX_LINKS) 287 return -EBUSY; 288 289 /* these bits are used by op_tx */ 290 spin_lock_irqsave(&wl->wl_lock, flags); 291 __set_bit(link, wl->links_map); 292 __set_bit(link, wlvif->links_map); 293 spin_unlock_irqrestore(&wl->wl_lock, flags); 294 *hlid = link; 295 return 0; 296} 297 298void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 299{ 300 unsigned long flags; 301 302 if (*hlid == WL12XX_INVALID_LINK_ID) 303 return; 304 305 /* these bits are used by op_tx */ 306 spin_lock_irqsave(&wl->wl_lock, flags); 307 __clear_bit(*hlid, wl->links_map); 308 __clear_bit(*hlid, wlvif->links_map); 309 spin_unlock_irqrestore(&wl->wl_lock, flags); 310 311 /* 312 * At this point op_tx() will not add more packets to the queues. We 313 * can purge them. 314 */ 315 wl1271_tx_reset_link_queues(wl, *hlid); 316 317 *hlid = WL12XX_INVALID_LINK_ID; 318} 319 320static int wl12xx_get_new_session_id(struct wl1271 *wl, 321 struct wl12xx_vif *wlvif) 322{ 323 if (wlvif->session_counter >= SESSION_COUNTER_MAX) 324 wlvif->session_counter = 0; 325 326 wlvif->session_counter++; 327 328 return wlvif->session_counter; 329} 330 331static u8 wlcore_get_native_channel_type(u8 nl_channel_type) 332{ 333 switch (nl_channel_type) { 334 case NL80211_CHAN_NO_HT: 335 return WLCORE_CHAN_NO_HT; 336 case NL80211_CHAN_HT20: 337 return WLCORE_CHAN_HT20; 338 case NL80211_CHAN_HT40MINUS: 339 return WLCORE_CHAN_HT40MINUS; 340 case NL80211_CHAN_HT40PLUS: 341 return WLCORE_CHAN_HT40PLUS; 342 default: 343 WARN_ON(1); 344 return WLCORE_CHAN_NO_HT; 345 } 346} 347 348static int wl12xx_cmd_role_start_dev(struct wl1271 *wl, 349 struct wl12xx_vif *wlvif, 350 enum ieee80211_band band, 351 int channel) 352{ 353 struct wl12xx_cmd_role_start *cmd; 354 int ret; 355 356 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 357 if (!cmd) { 358 ret = -ENOMEM; 359 goto out; 360 } 361 362 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id); 363 364 cmd->role_id = wlvif->dev_role_id; 365 if (band == IEEE80211_BAND_5GHZ) 366 cmd->band = WLCORE_BAND_5GHZ; 367 cmd->channel = channel; 368 369 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) { 370 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid); 371 if (ret) 372 goto out_free; 373 } 374 cmd->device.hlid = wlvif->dev_hlid; 375 cmd->device.session = wl12xx_get_new_session_id(wl, wlvif); 376 377 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d", 378 cmd->role_id, cmd->device.hlid, cmd->device.session); 379 380 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 381 if (ret < 0) { 382 wl1271_error("failed to initiate cmd role enable"); 383 goto err_hlid; 384 } 385 386 goto out_free; 387 388err_hlid: 389 /* clear links on error */ 390 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 391 392out_free: 393 kfree(cmd); 394 395out: 396 return ret; 397} 398 399static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, 400 struct wl12xx_vif *wlvif) 401{ 402 struct wl12xx_cmd_role_stop *cmd; 403 int ret; 404 405 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID)) 406 return -EINVAL; 407 408 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 409 if (!cmd) { 410 ret = -ENOMEM; 411 goto out; 412 } 413 414 wl1271_debug(DEBUG_CMD, "cmd role stop dev"); 415 416 cmd->role_id = wlvif->dev_role_id; 417 cmd->disc_type = DISCONNECT_IMMEDIATE; 418 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 419 420 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 421 if (ret < 0) { 422 wl1271_error("failed to initiate cmd role stop"); 423 goto out_free; 424 } 425 426 ret = wl1271_cmd_wait_for_event(wl, ROLE_STOP_COMPLETE_EVENT_ID); 427 if (ret < 0) { 428 wl1271_error("cmd role stop dev event completion error"); 429 goto out_free; 430 } 431 432 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 433 434out_free: 435 kfree(cmd); 436 437out: 438 return ret; 439} 440 441int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 442{ 443 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 444 struct wl12xx_cmd_role_start *cmd; 445 u32 supported_rates; 446 int ret; 447 448 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 449 if (!cmd) { 450 ret = -ENOMEM; 451 goto out; 452 } 453 454 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id); 455 456 cmd->role_id = wlvif->role_id; 457 if (wlvif->band == IEEE80211_BAND_5GHZ) 458 cmd->band = WLCORE_BAND_5GHZ; 459 cmd->channel = wlvif->channel; 460 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 461 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int); 462 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY; 463 cmd->sta.ssid_len = wlvif->ssid_len; 464 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len); 465 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN); 466 467 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES | 468 wlcore_hw_sta_get_ap_rate_mask(wl, wlvif); 469 if (wlvif->p2p) 470 supported_rates &= ~CONF_TX_CCK_RATES; 471 472 cmd->sta.local_rates = cpu_to_le32(supported_rates); 473 474 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 475 476 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 477 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 478 if (ret) 479 goto out_free; 480 } 481 cmd->sta.hlid = wlvif->sta.hlid; 482 cmd->sta.session = wl12xx_get_new_session_id(wl, wlvif); 483 /* 484 * We don't have the correct remote rates in this stage, and there 485 * is no way to update them later, so use our supported rates instead. 486 * The fw will take the configured rate policies into account anyway. 487 */ 488 cmd->sta.remote_rates = cpu_to_le32(supported_rates); 489 490 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 491 "basic_rate_set: 0x%x, remote_rates: 0x%x", 492 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 493 wlvif->basic_rate_set, wlvif->rate_set); 494 495 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 496 if (ret < 0) { 497 wl1271_error("failed to initiate cmd role start sta"); 498 goto err_hlid; 499 } 500 501 goto out_free; 502 503err_hlid: 504 /* clear links on error. */ 505 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 506 507out_free: 508 kfree(cmd); 509 510out: 511 return ret; 512} 513 514/* use this function to stop ibss as well */ 515int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 516{ 517 struct wl12xx_cmd_role_stop *cmd; 518 int ret; 519 bool timeout = false; 520 521 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)) 522 return -EINVAL; 523 524 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 525 if (!cmd) { 526 ret = -ENOMEM; 527 goto out; 528 } 529 530 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id); 531 532 cmd->role_id = wlvif->role_id; 533 cmd->disc_type = DISCONNECT_IMMEDIATE; 534 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 535 536 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 537 if (ret < 0) { 538 wl1271_error("failed to initiate cmd role stop sta"); 539 goto out_free; 540 } 541 542 /* 543 * Sometimes the firmware doesn't send this event, so we just 544 * time out without failing. Queue recovery for other 545 * failures. 546 */ 547 ret = wl1271_cmd_wait_for_event_or_timeout(wl, 548 ROLE_STOP_COMPLETE_EVENT_ID, 549 &timeout); 550 if (ret) 551 wl12xx_queue_recovery_work(wl); 552 553 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 554 555out_free: 556 kfree(cmd); 557 558out: 559 return ret; 560} 561 562int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 563{ 564 struct wl12xx_cmd_role_start *cmd; 565 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 566 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 567 u32 supported_rates; 568 int ret; 569 570 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id); 571 572 /* trying to use hidden SSID with an old hostapd version */ 573 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) { 574 wl1271_error("got a null SSID from beacon/bss"); 575 ret = -EINVAL; 576 goto out; 577 } 578 579 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 580 if (!cmd) { 581 ret = -ENOMEM; 582 goto out; 583 } 584 585 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid); 586 if (ret < 0) 587 goto out_free; 588 589 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid); 590 if (ret < 0) 591 goto out_free_global; 592 593 cmd->role_id = wlvif->role_id; 594 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period); 595 cmd->ap.bss_index = WL1271_AP_BSS_INDEX; 596 cmd->ap.global_hlid = wlvif->ap.global_hlid; 597 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid; 598 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 599 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int); 600 cmd->ap.dtim_interval = bss_conf->dtim_period; 601 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP; 602 /* FIXME: Change when adding DFS */ 603 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */ 604 cmd->channel = wlvif->channel; 605 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 606 607 if (!bss_conf->hidden_ssid) { 608 /* take the SSID from the beacon for backward compatibility */ 609 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC; 610 cmd->ap.ssid_len = wlvif->ssid_len; 611 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len); 612 } else { 613 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN; 614 cmd->ap.ssid_len = bss_conf->ssid_len; 615 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len); 616 } 617 618 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES | 619 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif); 620 621 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x", 622 supported_rates); 623 624 cmd->ap.local_rates = cpu_to_le32(supported_rates); 625 626 switch (wlvif->band) { 627 case IEEE80211_BAND_2GHZ: 628 cmd->band = WLCORE_BAND_2_4GHZ; 629 break; 630 case IEEE80211_BAND_5GHZ: 631 cmd->band = WLCORE_BAND_5GHZ; 632 break; 633 default: 634 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band); 635 cmd->band = WLCORE_BAND_2_4GHZ; 636 break; 637 } 638 639 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 640 if (ret < 0) { 641 wl1271_error("failed to initiate cmd role start ap"); 642 goto out_free_bcast; 643 } 644 645 goto out_free; 646 647out_free_bcast: 648 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 649 650out_free_global: 651 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 652 653out_free: 654 kfree(cmd); 655 656out: 657 return ret; 658} 659 660int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 661{ 662 struct wl12xx_cmd_role_stop *cmd; 663 int ret; 664 665 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 666 if (!cmd) { 667 ret = -ENOMEM; 668 goto out; 669 } 670 671 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id); 672 673 cmd->role_id = wlvif->role_id; 674 675 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 676 if (ret < 0) { 677 wl1271_error("failed to initiate cmd role stop ap"); 678 goto out_free; 679 } 680 681 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 682 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 683 684out_free: 685 kfree(cmd); 686 687out: 688 return ret; 689} 690 691int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif) 692{ 693 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 694 struct wl12xx_cmd_role_start *cmd; 695 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 696 int ret; 697 698 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 699 if (!cmd) { 700 ret = -ENOMEM; 701 goto out; 702 } 703 704 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id); 705 706 cmd->role_id = wlvif->role_id; 707 if (wlvif->band == IEEE80211_BAND_5GHZ) 708 cmd->band = WLCORE_BAND_5GHZ; 709 cmd->channel = wlvif->channel; 710 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 711 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int); 712 cmd->ibss.dtim_interval = bss_conf->dtim_period; 713 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY; 714 cmd->ibss.ssid_len = wlvif->ssid_len; 715 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len); 716 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN); 717 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 718 719 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 720 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 721 if (ret) 722 goto out_free; 723 } 724 cmd->ibss.hlid = wlvif->sta.hlid; 725 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set); 726 727 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 728 "basic_rate_set: 0x%x, remote_rates: 0x%x", 729 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 730 wlvif->basic_rate_set, wlvif->rate_set); 731 732 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM", 733 vif->bss_conf.bssid); 734 735 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 736 if (ret < 0) { 737 wl1271_error("failed to initiate cmd role enable"); 738 goto err_hlid; 739 } 740 741 goto out_free; 742 743err_hlid: 744 /* clear links on error. */ 745 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 746 747out_free: 748 kfree(cmd); 749 750out: 751 return ret; 752} 753 754 755/** 756 * send test command to firmware 757 * 758 * @wl: wl struct 759 * @buf: buffer containing the command, with all headers, must work with dma 760 * @len: length of the buffer 761 * @answer: is answer needed 762 */ 763int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer) 764{ 765 int ret; 766 size_t res_len = 0; 767 768 wl1271_debug(DEBUG_CMD, "cmd test"); 769 770 if (answer) 771 res_len = buf_len; 772 773 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len); 774 775 if (ret < 0) { 776 wl1271_warning("TEST command failed"); 777 return ret; 778 } 779 780 return ret; 781} 782EXPORT_SYMBOL_GPL(wl1271_cmd_test); 783 784/** 785 * read acx from firmware 786 * 787 * @wl: wl struct 788 * @id: acx id 789 * @buf: buffer for the response, including all headers, must work with dma 790 * @len: length of buf 791 */ 792int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len) 793{ 794 struct acx_header *acx = buf; 795 int ret; 796 797 wl1271_debug(DEBUG_CMD, "cmd interrogate"); 798 799 acx->id = cpu_to_le16(id); 800 801 /* payload length, does not include any headers */ 802 acx->len = cpu_to_le16(len - sizeof(*acx)); 803 804 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len); 805 if (ret < 0) 806 wl1271_error("INTERROGATE command failed"); 807 808 return ret; 809} 810 811/** 812 * write acx value to firmware 813 * 814 * @wl: wl struct 815 * @id: acx id 816 * @buf: buffer containing acx, including all headers, must work with dma 817 * @len: length of buf 818 */ 819int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len) 820{ 821 struct acx_header *acx = buf; 822 int ret; 823 824 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id); 825 826 acx->id = cpu_to_le16(id); 827 828 /* payload length, does not include any headers */ 829 acx->len = cpu_to_le16(len - sizeof(*acx)); 830 831 ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0); 832 if (ret < 0) { 833 wl1271_warning("CONFIGURE command NOK"); 834 return ret; 835 } 836 837 return 0; 838} 839EXPORT_SYMBOL_GPL(wl1271_cmd_configure); 840 841int wl1271_cmd_data_path(struct wl1271 *wl, bool enable) 842{ 843 struct cmd_enabledisable_path *cmd; 844 int ret; 845 u16 cmd_rx, cmd_tx; 846 847 wl1271_debug(DEBUG_CMD, "cmd data path"); 848 849 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 850 if (!cmd) { 851 ret = -ENOMEM; 852 goto out; 853 } 854 855 /* the channel here is only used for calibration, so hardcoded to 1 */ 856 cmd->channel = 1; 857 858 if (enable) { 859 cmd_rx = CMD_ENABLE_RX; 860 cmd_tx = CMD_ENABLE_TX; 861 } else { 862 cmd_rx = CMD_DISABLE_RX; 863 cmd_tx = CMD_DISABLE_TX; 864 } 865 866 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0); 867 if (ret < 0) { 868 wl1271_error("rx %s cmd for channel %d failed", 869 enable ? "start" : "stop", cmd->channel); 870 goto out; 871 } 872 873 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d", 874 enable ? "start" : "stop", cmd->channel); 875 876 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0); 877 if (ret < 0) { 878 wl1271_error("tx %s cmd for channel %d failed", 879 enable ? "start" : "stop", cmd->channel); 880 goto out; 881 } 882 883 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d", 884 enable ? "start" : "stop", cmd->channel); 885 886out: 887 kfree(cmd); 888 return ret; 889} 890EXPORT_SYMBOL_GPL(wl1271_cmd_data_path); 891 892int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif, 893 u8 ps_mode, u16 auto_ps_timeout) 894{ 895 struct wl1271_cmd_ps_params *ps_params = NULL; 896 int ret = 0; 897 898 wl1271_debug(DEBUG_CMD, "cmd set ps mode"); 899 900 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL); 901 if (!ps_params) { 902 ret = -ENOMEM; 903 goto out; 904 } 905 906 ps_params->role_id = wlvif->role_id; 907 ps_params->ps_mode = ps_mode; 908 ps_params->auto_ps_timeout = auto_ps_timeout; 909 910 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params, 911 sizeof(*ps_params), 0); 912 if (ret < 0) { 913 wl1271_error("cmd set_ps_mode failed"); 914 goto out; 915 } 916 917out: 918 kfree(ps_params); 919 return ret; 920} 921 922int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id, 923 u16 template_id, void *buf, size_t buf_len, 924 int index, u32 rates) 925{ 926 struct wl1271_cmd_template_set *cmd; 927 int ret = 0; 928 929 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)", 930 template_id, role_id); 931 932 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE); 933 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE); 934 935 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 936 if (!cmd) { 937 ret = -ENOMEM; 938 goto out; 939 } 940 941 /* during initialization wlvif is NULL */ 942 cmd->role_id = role_id; 943 cmd->len = cpu_to_le16(buf_len); 944 cmd->template_type = template_id; 945 cmd->enabled_rates = cpu_to_le32(rates); 946 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit; 947 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit; 948 cmd->index = index; 949 950 if (buf) 951 memcpy(cmd->template_data, buf, buf_len); 952 953 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0); 954 if (ret < 0) { 955 wl1271_warning("cmd set_template failed: %d", ret); 956 goto out_free; 957 } 958 959out_free: 960 kfree(cmd); 961 962out: 963 return ret; 964} 965 966int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) 967{ 968 struct sk_buff *skb = NULL; 969 int size; 970 void *ptr; 971 int ret = -ENOMEM; 972 973 974 if (wlvif->bss_type == BSS_TYPE_IBSS) { 975 size = sizeof(struct wl12xx_null_data_template); 976 ptr = NULL; 977 } else { 978 skb = ieee80211_nullfunc_get(wl->hw, 979 wl12xx_wlvif_to_vif(wlvif)); 980 if (!skb) 981 goto out; 982 size = skb->len; 983 ptr = skb->data; 984 } 985 986 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 987 CMD_TEMPL_NULL_DATA, ptr, size, 0, 988 wlvif->basic_rate); 989 990out: 991 dev_kfree_skb(skb); 992 if (ret) 993 wl1271_warning("cmd buld null data failed %d", ret); 994 995 return ret; 996 997} 998 999int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, 1000 struct wl12xx_vif *wlvif) 1001{ 1002 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1003 struct sk_buff *skb = NULL; 1004 int ret = -ENOMEM; 1005 1006 skb = ieee80211_nullfunc_get(wl->hw, vif); 1007 if (!skb) 1008 goto out; 1009 1010 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV, 1011 skb->data, skb->len, 1012 wlvif->sta.klv_template_id, 1013 wlvif->basic_rate); 1014 1015out: 1016 dev_kfree_skb(skb); 1017 if (ret) 1018 wl1271_warning("cmd build klv null data failed %d", ret); 1019 1020 return ret; 1021 1022} 1023 1024int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1025 u16 aid) 1026{ 1027 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1028 struct sk_buff *skb; 1029 int ret = 0; 1030 1031 skb = ieee80211_pspoll_get(wl->hw, vif); 1032 if (!skb) 1033 goto out; 1034 1035 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1036 CMD_TEMPL_PS_POLL, skb->data, 1037 skb->len, 0, wlvif->basic_rate_set); 1038 1039out: 1040 dev_kfree_skb(skb); 1041 return ret; 1042} 1043 1044int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1045 u8 role_id, u8 band, 1046 const u8 *ssid, size_t ssid_len, 1047 const u8 *ie, size_t ie_len, bool sched_scan) 1048{ 1049 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1050 struct sk_buff *skb; 1051 int ret; 1052 u32 rate; 1053 u16 template_id_2_4 = wl->scan_templ_id_2_4; 1054 u16 template_id_5 = wl->scan_templ_id_5; 1055 1056 skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len, 1057 ie, ie_len); 1058 if (!skb) { 1059 ret = -ENOMEM; 1060 goto out; 1061 } 1062 1063 wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len); 1064 1065 if (sched_scan && 1066 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) { 1067 template_id_2_4 = wl->sched_scan_templ_id_2_4; 1068 template_id_5 = wl->sched_scan_templ_id_5; 1069 } 1070 1071 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]); 1072 if (band == IEEE80211_BAND_2GHZ) 1073 ret = wl1271_cmd_template_set(wl, role_id, 1074 template_id_2_4, 1075 skb->data, skb->len, 0, rate); 1076 else 1077 ret = wl1271_cmd_template_set(wl, role_id, 1078 template_id_5, 1079 skb->data, skb->len, 0, rate); 1080 1081out: 1082 dev_kfree_skb(skb); 1083 return ret; 1084} 1085EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req); 1086 1087struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl, 1088 struct wl12xx_vif *wlvif, 1089 struct sk_buff *skb) 1090{ 1091 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1092 int ret; 1093 u32 rate; 1094 1095 if (!skb) 1096 skb = ieee80211_ap_probereq_get(wl->hw, vif); 1097 if (!skb) 1098 goto out; 1099 1100 wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len); 1101 1102 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]); 1103 if (wlvif->band == IEEE80211_BAND_2GHZ) 1104 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1105 CMD_TEMPL_CFG_PROBE_REQ_2_4, 1106 skb->data, skb->len, 0, rate); 1107 else 1108 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1109 CMD_TEMPL_CFG_PROBE_REQ_5, 1110 skb->data, skb->len, 0, rate); 1111 1112 if (ret < 0) 1113 wl1271_error("Unable to set ap probe request template."); 1114 1115out: 1116 return skb; 1117} 1118 1119int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1120{ 1121 int ret, extra = 0; 1122 u16 fc; 1123 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1124 struct sk_buff *skb; 1125 struct wl12xx_arp_rsp_template *tmpl; 1126 struct ieee80211_hdr_3addr *hdr; 1127 struct arphdr *arp_hdr; 1128 1129 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) + 1130 WL1271_EXTRA_SPACE_MAX); 1131 if (!skb) { 1132 wl1271_error("failed to allocate buffer for arp rsp template"); 1133 return -ENOMEM; 1134 } 1135 1136 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX); 1137 1138 tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl)); 1139 memset(tmpl, 0, sizeof(*tmpl)); 1140 1141 /* llc layer */ 1142 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header)); 1143 tmpl->llc_type = cpu_to_be16(ETH_P_ARP); 1144 1145 /* arp header */ 1146 arp_hdr = &tmpl->arp_hdr; 1147 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER); 1148 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP); 1149 arp_hdr->ar_hln = ETH_ALEN; 1150 arp_hdr->ar_pln = 4; 1151 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY); 1152 1153 /* arp payload */ 1154 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN); 1155 tmpl->sender_ip = wlvif->ip_addr; 1156 1157 /* encryption space */ 1158 switch (wlvif->encryption_type) { 1159 case KEY_TKIP: 1160 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) 1161 extra = WL1271_EXTRA_SPACE_TKIP; 1162 break; 1163 case KEY_AES: 1164 extra = WL1271_EXTRA_SPACE_AES; 1165 break; 1166 case KEY_NONE: 1167 case KEY_WEP: 1168 case KEY_GEM: 1169 extra = 0; 1170 break; 1171 default: 1172 wl1271_warning("Unknown encryption type: %d", 1173 wlvif->encryption_type); 1174 ret = -EINVAL; 1175 goto out; 1176 } 1177 1178 if (extra) { 1179 u8 *space = skb_push(skb, extra); 1180 memset(space, 0, extra); 1181 } 1182 1183 /* QoS header - BE */ 1184 if (wlvif->sta.qos) 1185 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16)); 1186 1187 /* mac80211 header */ 1188 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr)); 1189 memset(hdr, 0, sizeof(*hdr)); 1190 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS; 1191 if (wlvif->sta.qos) 1192 fc |= IEEE80211_STYPE_QOS_DATA; 1193 else 1194 fc |= IEEE80211_STYPE_DATA; 1195 if (wlvif->encryption_type != KEY_NONE) 1196 fc |= IEEE80211_FCTL_PROTECTED; 1197 1198 hdr->frame_control = cpu_to_le16(fc); 1199 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN); 1200 memcpy(hdr->addr2, vif->addr, ETH_ALEN); 1201 memset(hdr->addr3, 0xff, ETH_ALEN); 1202 1203 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP, 1204 skb->data, skb->len, 0, 1205 wlvif->basic_rate); 1206out: 1207 dev_kfree_skb(skb); 1208 return ret; 1209} 1210 1211int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif) 1212{ 1213 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 1214 struct ieee80211_qos_hdr template; 1215 1216 memset(&template, 0, sizeof(template)); 1217 1218 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN); 1219 memcpy(template.addr2, vif->addr, ETH_ALEN); 1220 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN); 1221 1222 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 1223 IEEE80211_STYPE_QOS_NULLFUNC | 1224 IEEE80211_FCTL_TODS); 1225 1226 /* FIXME: not sure what priority to use here */ 1227 template.qos_ctrl = cpu_to_le16(0); 1228 1229 return wl1271_cmd_template_set(wl, wlvif->role_id, 1230 CMD_TEMPL_QOS_NULL_DATA, &template, 1231 sizeof(template), 0, 1232 wlvif->basic_rate); 1233} 1234 1235int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid) 1236{ 1237 struct wl1271_cmd_set_keys *cmd; 1238 int ret = 0; 1239 1240 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id); 1241 1242 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1243 if (!cmd) { 1244 ret = -ENOMEM; 1245 goto out; 1246 } 1247 1248 cmd->hlid = hlid; 1249 cmd->key_id = id; 1250 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1251 cmd->key_action = cpu_to_le16(KEY_SET_ID); 1252 cmd->key_type = KEY_WEP; 1253 1254 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1255 if (ret < 0) { 1256 wl1271_warning("cmd set_default_wep_key failed: %d", ret); 1257 goto out; 1258 } 1259 1260out: 1261 kfree(cmd); 1262 1263 return ret; 1264} 1265 1266int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1267 u16 action, u8 id, u8 key_type, 1268 u8 key_size, const u8 *key, const u8 *addr, 1269 u32 tx_seq_32, u16 tx_seq_16) 1270{ 1271 struct wl1271_cmd_set_keys *cmd; 1272 int ret = 0; 1273 1274 /* hlid might have already been deleted */ 1275 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) 1276 return 0; 1277 1278 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1279 if (!cmd) { 1280 ret = -ENOMEM; 1281 goto out; 1282 } 1283 1284 cmd->hlid = wlvif->sta.hlid; 1285 1286 if (key_type == KEY_WEP) 1287 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1288 else if (is_broadcast_ether_addr(addr)) 1289 cmd->lid_key_type = BROADCAST_LID_TYPE; 1290 else 1291 cmd->lid_key_type = UNICAST_LID_TYPE; 1292 1293 cmd->key_action = cpu_to_le16(action); 1294 cmd->key_size = key_size; 1295 cmd->key_type = key_type; 1296 1297 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1298 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1299 1300 cmd->key_id = id; 1301 1302 if (key_type == KEY_TKIP) { 1303 /* 1304 * We get the key in the following form: 1305 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1306 * but the target is expecting: 1307 * TKIP - RX MIC - TX MIC 1308 */ 1309 memcpy(cmd->key, key, 16); 1310 memcpy(cmd->key + 16, key + 24, 8); 1311 memcpy(cmd->key + 24, key + 16, 8); 1312 1313 } else { 1314 memcpy(cmd->key, key, key_size); 1315 } 1316 1317 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd)); 1318 1319 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1320 if (ret < 0) { 1321 wl1271_warning("could not set keys"); 1322 goto out; 1323 } 1324 1325out: 1326 kfree(cmd); 1327 1328 return ret; 1329} 1330 1331/* 1332 * TODO: merge with sta/ibss into 1 set_key function. 1333 * note there are slight diffs 1334 */ 1335int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1336 u16 action, u8 id, u8 key_type, 1337 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32, 1338 u16 tx_seq_16) 1339{ 1340 struct wl1271_cmd_set_keys *cmd; 1341 int ret = 0; 1342 u8 lid_type; 1343 1344 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1345 if (!cmd) 1346 return -ENOMEM; 1347 1348 if (hlid == wlvif->ap.bcast_hlid) { 1349 if (key_type == KEY_WEP) 1350 lid_type = WEP_DEFAULT_LID_TYPE; 1351 else 1352 lid_type = BROADCAST_LID_TYPE; 1353 } else { 1354 lid_type = UNICAST_LID_TYPE; 1355 } 1356 1357 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d" 1358 " hlid: %d", (int)action, (int)id, (int)lid_type, 1359 (int)key_type, (int)hlid); 1360 1361 cmd->lid_key_type = lid_type; 1362 cmd->hlid = hlid; 1363 cmd->key_action = cpu_to_le16(action); 1364 cmd->key_size = key_size; 1365 cmd->key_type = key_type; 1366 cmd->key_id = id; 1367 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1368 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1369 1370 if (key_type == KEY_TKIP) { 1371 /* 1372 * We get the key in the following form: 1373 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1374 * but the target is expecting: 1375 * TKIP - RX MIC - TX MIC 1376 */ 1377 memcpy(cmd->key, key, 16); 1378 memcpy(cmd->key + 16, key + 24, 8); 1379 memcpy(cmd->key + 24, key + 16, 8); 1380 } else { 1381 memcpy(cmd->key, key, key_size); 1382 } 1383 1384 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd)); 1385 1386 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1387 if (ret < 0) { 1388 wl1271_warning("could not set ap keys"); 1389 goto out; 1390 } 1391 1392out: 1393 kfree(cmd); 1394 return ret; 1395} 1396 1397int wl12xx_cmd_set_peer_state(struct wl1271 *wl, u8 hlid) 1398{ 1399 struct wl12xx_cmd_set_peer_state *cmd; 1400 int ret = 0; 1401 1402 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid); 1403 1404 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1405 if (!cmd) { 1406 ret = -ENOMEM; 1407 goto out; 1408 } 1409 1410 cmd->hlid = hlid; 1411 cmd->state = WL1271_CMD_STA_STATE_CONNECTED; 1412 1413 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0); 1414 if (ret < 0) { 1415 wl1271_error("failed to send set peer state command"); 1416 goto out_free; 1417 } 1418 1419out_free: 1420 kfree(cmd); 1421 1422out: 1423 return ret; 1424} 1425 1426int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1427 struct ieee80211_sta *sta, u8 hlid) 1428{ 1429 struct wl12xx_cmd_add_peer *cmd; 1430 int i, ret; 1431 u32 sta_rates; 1432 1433 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid); 1434 1435 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1436 if (!cmd) { 1437 ret = -ENOMEM; 1438 goto out; 1439 } 1440 1441 memcpy(cmd->addr, sta->addr, ETH_ALEN); 1442 cmd->bss_index = WL1271_AP_BSS_INDEX; 1443 cmd->aid = sta->aid; 1444 cmd->hlid = hlid; 1445 cmd->sp_len = sta->max_sp; 1446 cmd->wmm = sta->wme ? 1 : 0; 1447 1448 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++) 1449 if (sta->wme && (sta->uapsd_queues & BIT(i))) 1450 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1451 WL1271_PSD_UPSD_TRIGGER; 1452 else 1453 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1454 WL1271_PSD_LEGACY; 1455 1456 1457 sta_rates = sta->supp_rates[wlvif->band]; 1458 if (sta->ht_cap.ht_supported) 1459 sta_rates |= 1460 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) | 1461 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET); 1462 1463 cmd->supported_rates = 1464 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates, 1465 wlvif->band)); 1466 1467 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x", 1468 cmd->supported_rates, sta->uapsd_queues); 1469 1470 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0); 1471 if (ret < 0) { 1472 wl1271_error("failed to initiate cmd add peer"); 1473 goto out_free; 1474 } 1475 1476out_free: 1477 kfree(cmd); 1478 1479out: 1480 return ret; 1481} 1482 1483int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid) 1484{ 1485 struct wl12xx_cmd_remove_peer *cmd; 1486 int ret; 1487 bool timeout = false; 1488 1489 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid); 1490 1491 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1492 if (!cmd) { 1493 ret = -ENOMEM; 1494 goto out; 1495 } 1496 1497 cmd->hlid = hlid; 1498 /* We never send a deauth, mac80211 is in charge of this */ 1499 cmd->reason_opcode = 0; 1500 cmd->send_deauth_flag = 0; 1501 1502 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0); 1503 if (ret < 0) { 1504 wl1271_error("failed to initiate cmd remove peer"); 1505 goto out_free; 1506 } 1507 1508 ret = wl1271_cmd_wait_for_event_or_timeout(wl, 1509 PEER_REMOVE_COMPLETE_EVENT_ID, 1510 &timeout); 1511 /* 1512 * We are ok with a timeout here. The event is sometimes not sent 1513 * due to a firmware bug. In case of another error (like SDIO timeout) 1514 * queue a recovery. 1515 */ 1516 if (ret) 1517 wl12xx_queue_recovery_work(wl); 1518 1519out_free: 1520 kfree(cmd); 1521 1522out: 1523 return ret; 1524} 1525 1526int wl12xx_cmd_config_fwlog(struct wl1271 *wl) 1527{ 1528 struct wl12xx_cmd_config_fwlog *cmd; 1529 int ret = 0; 1530 1531 wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); 1532 1533 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1534 if (!cmd) { 1535 ret = -ENOMEM; 1536 goto out; 1537 } 1538 1539 cmd->logger_mode = wl->conf.fwlog.mode; 1540 cmd->log_severity = wl->conf.fwlog.severity; 1541 cmd->timestamp = wl->conf.fwlog.timestamp; 1542 cmd->output = wl->conf.fwlog.output; 1543 cmd->threshold = wl->conf.fwlog.threshold; 1544 1545 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); 1546 if (ret < 0) { 1547 wl1271_error("failed to send config firmware logger command"); 1548 goto out_free; 1549 } 1550 1551out_free: 1552 kfree(cmd); 1553 1554out: 1555 return ret; 1556} 1557 1558int wl12xx_cmd_start_fwlog(struct wl1271 *wl) 1559{ 1560 struct wl12xx_cmd_start_fwlog *cmd; 1561 int ret = 0; 1562 1563 wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); 1564 1565 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1566 if (!cmd) { 1567 ret = -ENOMEM; 1568 goto out; 1569 } 1570 1571 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); 1572 if (ret < 0) { 1573 wl1271_error("failed to send start firmware logger command"); 1574 goto out_free; 1575 } 1576 1577out_free: 1578 kfree(cmd); 1579 1580out: 1581 return ret; 1582} 1583 1584int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) 1585{ 1586 struct wl12xx_cmd_stop_fwlog *cmd; 1587 int ret = 0; 1588 1589 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); 1590 1591 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1592 if (!cmd) { 1593 ret = -ENOMEM; 1594 goto out; 1595 } 1596 1597 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); 1598 if (ret < 0) { 1599 wl1271_error("failed to send stop firmware logger command"); 1600 goto out_free; 1601 } 1602 1603out_free: 1604 kfree(cmd); 1605 1606out: 1607 return ret; 1608} 1609 1610static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1611 u8 role_id, enum ieee80211_band band, u8 channel) 1612{ 1613 struct wl12xx_cmd_roc *cmd; 1614 int ret = 0; 1615 1616 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id); 1617 1618 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID)) 1619 return -EINVAL; 1620 1621 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1622 if (!cmd) { 1623 ret = -ENOMEM; 1624 goto out; 1625 } 1626 1627 cmd->role_id = role_id; 1628 cmd->channel = channel; 1629 switch (band) { 1630 case IEEE80211_BAND_2GHZ: 1631 cmd->band = WLCORE_BAND_2_4GHZ; 1632 break; 1633 case IEEE80211_BAND_5GHZ: 1634 cmd->band = WLCORE_BAND_5GHZ; 1635 break; 1636 default: 1637 wl1271_error("roc - unknown band: %d", (int)wlvif->band); 1638 ret = -EINVAL; 1639 goto out_free; 1640 } 1641 1642 1643 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0); 1644 if (ret < 0) { 1645 wl1271_error("failed to send ROC command"); 1646 goto out_free; 1647 } 1648 1649out_free: 1650 kfree(cmd); 1651 1652out: 1653 return ret; 1654} 1655 1656static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id) 1657{ 1658 struct wl12xx_cmd_croc *cmd; 1659 int ret = 0; 1660 1661 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id); 1662 1663 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1664 if (!cmd) { 1665 ret = -ENOMEM; 1666 goto out; 1667 } 1668 cmd->role_id = role_id; 1669 1670 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd, 1671 sizeof(*cmd), 0); 1672 if (ret < 0) { 1673 wl1271_error("failed to send ROC command"); 1674 goto out_free; 1675 } 1676 1677out_free: 1678 kfree(cmd); 1679 1680out: 1681 return ret; 1682} 1683 1684int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id, 1685 enum ieee80211_band band, u8 channel) 1686{ 1687 int ret = 0; 1688 1689 if (WARN_ON(test_bit(role_id, wl->roc_map))) 1690 return 0; 1691 1692 ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel); 1693 if (ret < 0) 1694 goto out; 1695 1696 __set_bit(role_id, wl->roc_map); 1697out: 1698 return ret; 1699} 1700 1701int wl12xx_croc(struct wl1271 *wl, u8 role_id) 1702{ 1703 int ret = 0; 1704 1705 if (WARN_ON(!test_bit(role_id, wl->roc_map))) 1706 return 0; 1707 1708 ret = wl12xx_cmd_croc(wl, role_id); 1709 if (ret < 0) 1710 goto out; 1711 1712 __clear_bit(role_id, wl->roc_map); 1713 1714 /* 1715 * Rearm the tx watchdog when removing the last ROC. This prevents 1716 * recoveries due to just finished ROCs - when Tx hasn't yet had 1717 * a chance to get out. 1718 */ 1719 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) 1720 wl12xx_rearm_tx_watchdog_locked(wl); 1721out: 1722 return ret; 1723} 1724 1725int wl12xx_cmd_channel_switch(struct wl1271 *wl, 1726 struct wl12xx_vif *wlvif, 1727 struct ieee80211_channel_switch *ch_switch) 1728{ 1729 struct wl12xx_cmd_channel_switch *cmd; 1730 int ret; 1731 1732 wl1271_debug(DEBUG_ACX, "cmd channel switch"); 1733 1734 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1735 if (!cmd) { 1736 ret = -ENOMEM; 1737 goto out; 1738 } 1739 1740 cmd->role_id = wlvif->role_id; 1741 cmd->channel = ch_switch->channel->hw_value; 1742 cmd->switch_time = ch_switch->count; 1743 cmd->stop_tx = ch_switch->block_tx; 1744 1745 /* FIXME: control from mac80211 in the future */ 1746 cmd->post_switch_tx_disable = 0; /* Enable TX on the target channel */ 1747 1748 ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0); 1749 if (ret < 0) { 1750 wl1271_error("failed to send channel switch command"); 1751 goto out_free; 1752 } 1753 1754out_free: 1755 kfree(cmd); 1756 1757out: 1758 return ret; 1759} 1760 1761int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl) 1762{ 1763 struct wl12xx_cmd_stop_channel_switch *cmd; 1764 int ret; 1765 1766 wl1271_debug(DEBUG_ACX, "cmd stop channel switch"); 1767 1768 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1769 if (!cmd) { 1770 ret = -ENOMEM; 1771 goto out; 1772 } 1773 1774 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0); 1775 if (ret < 0) { 1776 wl1271_error("failed to stop channel switch command"); 1777 goto out_free; 1778 } 1779 1780out_free: 1781 kfree(cmd); 1782 1783out: 1784 return ret; 1785} 1786 1787/* start dev role and roc on its channel */ 1788int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1789 enum ieee80211_band band, int channel) 1790{ 1791 int ret; 1792 1793 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1794 wlvif->bss_type == BSS_TYPE_IBSS))) 1795 return -EINVAL; 1796 1797 ret = wl12xx_cmd_role_enable(wl, 1798 wl12xx_wlvif_to_vif(wlvif)->addr, 1799 WL1271_ROLE_DEVICE, 1800 &wlvif->dev_role_id); 1801 if (ret < 0) 1802 goto out; 1803 1804 ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel); 1805 if (ret < 0) 1806 goto out_disable; 1807 1808 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel); 1809 if (ret < 0) 1810 goto out_stop; 1811 1812 return 0; 1813 1814out_stop: 1815 wl12xx_cmd_role_stop_dev(wl, wlvif); 1816out_disable: 1817 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 1818out: 1819 return ret; 1820} 1821 1822/* croc dev hlid, and stop the role */ 1823int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1824{ 1825 int ret; 1826 1827 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1828 wlvif->bss_type == BSS_TYPE_IBSS))) 1829 return -EINVAL; 1830 1831 /* flush all pending packets */ 1832 ret = wlcore_tx_work_locked(wl); 1833 if (ret < 0) 1834 goto out; 1835 1836 if (test_bit(wlvif->dev_role_id, wl->roc_map)) { 1837 ret = wl12xx_croc(wl, wlvif->dev_role_id); 1838 if (ret < 0) 1839 goto out; 1840 } 1841 1842 ret = wl12xx_cmd_role_stop_dev(wl, wlvif); 1843 if (ret < 0) 1844 goto out; 1845 1846 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id); 1847 if (ret < 0) 1848 goto out; 1849 1850out: 1851 return ret; 1852} 1853