cmd.c revision 2c0133a437905591cdaa39cf65a3f7188d20a094
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 43/* 44 * send command to firmware 45 * 46 * @wl: wl struct 47 * @id: command id 48 * @buf: buffer containing the command, must work with dma 49 * @len: length of the buffer 50 */ 51int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len, 52 size_t res_len) 53{ 54 struct wl1271_cmd_header *cmd; 55 unsigned long timeout; 56 u32 intr; 57 int ret = 0; 58 u16 status; 59 u16 poll_count = 0; 60 61 cmd = buf; 62 cmd->id = cpu_to_le16(id); 63 cmd->status = 0; 64 65 WARN_ON(len % 4 != 0); 66 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags)); 67 68 wl1271_write(wl, wl->cmd_box_addr, buf, len, false); 69 70 /* 71 * TODO: we just need this because one bit is in a different 72 * place. Is there any better way? 73 */ 74 wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len); 75 76 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT); 77 78 intr = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR); 79 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) { 80 if (time_after(jiffies, timeout)) { 81 wl1271_error("command complete timeout"); 82 ret = -ETIMEDOUT; 83 goto fail; 84 } 85 86 poll_count++; 87 if (poll_count < WL1271_CMD_FAST_POLL_COUNT) 88 udelay(10); 89 else 90 msleep(1); 91 92 intr = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR); 93 } 94 95 /* read back the status code of the command */ 96 if (res_len == 0) 97 res_len = sizeof(struct wl1271_cmd_header); 98 wl1271_read(wl, wl->cmd_box_addr, cmd, res_len, false); 99 100 status = le16_to_cpu(cmd->status); 101 if (status != CMD_STATUS_SUCCESS) { 102 wl1271_error("command execute failure %d", status); 103 ret = -EIO; 104 goto fail; 105 } 106 107 wlcore_write_reg(wl, REG_INTERRUPT_ACK, WL1271_ACX_INTR_CMD_COMPLETE); 108 return 0; 109 110fail: 111 WARN_ON(1); 112 wl12xx_queue_recovery_work(wl); 113 return ret; 114} 115 116/* 117 * Poll the mailbox event field until any of the bits in the mask is set or a 118 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs) 119 */ 120static int wl1271_cmd_wait_for_event_or_timeout(struct wl1271 *wl, u32 mask) 121{ 122 u32 *events_vector; 123 u32 event; 124 unsigned long timeout; 125 int ret = 0; 126 127 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA); 128 if (!events_vector) 129 return -ENOMEM; 130 131 timeout = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT); 132 133 do { 134 if (time_after(jiffies, timeout)) { 135 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d", 136 (int)mask); 137 ret = -ETIMEDOUT; 138 goto out; 139 } 140 141 msleep(1); 142 143 /* read from both event fields */ 144 wl1271_read(wl, wl->mbox_ptr[0], events_vector, 145 sizeof(*events_vector), false); 146 event = *events_vector & mask; 147 wl1271_read(wl, wl->mbox_ptr[1], events_vector, 148 sizeof(*events_vector), false); 149 event |= *events_vector & mask; 150 } while (!event); 151 152out: 153 kfree(events_vector); 154 return ret; 155} 156 157static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask) 158{ 159 int ret; 160 161 ret = wl1271_cmd_wait_for_event_or_timeout(wl, mask); 162 if (ret != 0) { 163 wl12xx_queue_recovery_work(wl); 164 return ret; 165 } 166 167 return 0; 168} 169 170int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type, 171 u8 *role_id) 172{ 173 struct wl12xx_cmd_role_enable *cmd; 174 int ret; 175 176 wl1271_debug(DEBUG_CMD, "cmd role enable"); 177 178 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID)) 179 return -EBUSY; 180 181 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 182 if (!cmd) { 183 ret = -ENOMEM; 184 goto out; 185 } 186 187 /* get role id */ 188 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES); 189 if (cmd->role_id >= WL12XX_MAX_ROLES) { 190 ret = -EBUSY; 191 goto out_free; 192 } 193 194 memcpy(cmd->mac_address, addr, ETH_ALEN); 195 cmd->role_type = role_type; 196 197 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0); 198 if (ret < 0) { 199 wl1271_error("failed to initiate cmd role enable"); 200 goto out_free; 201 } 202 203 __set_bit(cmd->role_id, wl->roles_map); 204 *role_id = cmd->role_id; 205 206out_free: 207 kfree(cmd); 208 209out: 210 return ret; 211} 212 213int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id) 214{ 215 struct wl12xx_cmd_role_disable *cmd; 216 int ret; 217 218 wl1271_debug(DEBUG_CMD, "cmd role disable"); 219 220 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID)) 221 return -ENOENT; 222 223 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 224 if (!cmd) { 225 ret = -ENOMEM; 226 goto out; 227 } 228 cmd->role_id = *role_id; 229 230 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0); 231 if (ret < 0) { 232 wl1271_error("failed to initiate cmd role disable"); 233 goto out_free; 234 } 235 236 __clear_bit(*role_id, wl->roles_map); 237 *role_id = WL12XX_INVALID_ROLE_ID; 238 239out_free: 240 kfree(cmd); 241 242out: 243 return ret; 244} 245 246int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 247{ 248 unsigned long flags; 249 u8 link = find_first_zero_bit(wl->links_map, WL12XX_MAX_LINKS); 250 if (link >= WL12XX_MAX_LINKS) 251 return -EBUSY; 252 253 /* these bits are used by op_tx */ 254 spin_lock_irqsave(&wl->wl_lock, flags); 255 __set_bit(link, wl->links_map); 256 __set_bit(link, wlvif->links_map); 257 spin_unlock_irqrestore(&wl->wl_lock, flags); 258 *hlid = link; 259 return 0; 260} 261 262void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 263{ 264 unsigned long flags; 265 266 if (*hlid == WL12XX_INVALID_LINK_ID) 267 return; 268 269 /* these bits are used by op_tx */ 270 spin_lock_irqsave(&wl->wl_lock, flags); 271 __clear_bit(*hlid, wl->links_map); 272 __clear_bit(*hlid, wlvif->links_map); 273 spin_unlock_irqrestore(&wl->wl_lock, flags); 274 275 /* 276 * At this point op_tx() will not add more packets to the queues. We 277 * can purge them. 278 */ 279 wl1271_tx_reset_link_queues(wl, *hlid); 280 281 *hlid = WL12XX_INVALID_LINK_ID; 282} 283 284static int wl12xx_get_new_session_id(struct wl1271 *wl, 285 struct wl12xx_vif *wlvif) 286{ 287 if (wlvif->session_counter >= SESSION_COUNTER_MAX) 288 wlvif->session_counter = 0; 289 290 wlvif->session_counter++; 291 292 return wlvif->session_counter; 293} 294 295static u8 wlcore_get_native_channel_type(u8 nl_channel_type) 296{ 297 switch (nl_channel_type) { 298 case NL80211_CHAN_NO_HT: 299 return WLCORE_CHAN_NO_HT; 300 case NL80211_CHAN_HT20: 301 return WLCORE_CHAN_HT20; 302 case NL80211_CHAN_HT40MINUS: 303 return WLCORE_CHAN_HT40MINUS; 304 case NL80211_CHAN_HT40PLUS: 305 return WLCORE_CHAN_HT40PLUS; 306 default: 307 WARN_ON(1); 308 return WLCORE_CHAN_NO_HT; 309 } 310} 311 312static int wl12xx_cmd_role_start_dev(struct wl1271 *wl, 313 struct wl12xx_vif *wlvif) 314{ 315 struct wl12xx_cmd_role_start *cmd; 316 int ret; 317 318 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 319 if (!cmd) { 320 ret = -ENOMEM; 321 goto out; 322 } 323 324 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id); 325 326 cmd->role_id = wlvif->dev_role_id; 327 if (wlvif->band == IEEE80211_BAND_5GHZ) 328 cmd->band = WLCORE_BAND_5GHZ; 329 cmd->channel = wlvif->channel; 330 331 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) { 332 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid); 333 if (ret) 334 goto out_free; 335 } 336 cmd->device.hlid = wlvif->dev_hlid; 337 cmd->device.session = wl12xx_get_new_session_id(wl, wlvif); 338 339 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d", 340 cmd->role_id, cmd->device.hlid, cmd->device.session); 341 342 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 343 if (ret < 0) { 344 wl1271_error("failed to initiate cmd role enable"); 345 goto err_hlid; 346 } 347 348 goto out_free; 349 350err_hlid: 351 /* clear links on error */ 352 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 353 354out_free: 355 kfree(cmd); 356 357out: 358 return ret; 359} 360 361static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, 362 struct wl12xx_vif *wlvif) 363{ 364 struct wl12xx_cmd_role_stop *cmd; 365 int ret; 366 367 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID)) 368 return -EINVAL; 369 370 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 371 if (!cmd) { 372 ret = -ENOMEM; 373 goto out; 374 } 375 376 wl1271_debug(DEBUG_CMD, "cmd role stop dev"); 377 378 cmd->role_id = wlvif->dev_role_id; 379 cmd->disc_type = DISCONNECT_IMMEDIATE; 380 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 381 382 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 383 if (ret < 0) { 384 wl1271_error("failed to initiate cmd role stop"); 385 goto out_free; 386 } 387 388 ret = wl1271_cmd_wait_for_event(wl, ROLE_STOP_COMPLETE_EVENT_ID); 389 if (ret < 0) { 390 wl1271_error("cmd role stop dev event completion error"); 391 goto out_free; 392 } 393 394 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 395 396out_free: 397 kfree(cmd); 398 399out: 400 return ret; 401} 402 403int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 404{ 405 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 406 struct wl12xx_cmd_role_start *cmd; 407 int ret; 408 409 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 410 if (!cmd) { 411 ret = -ENOMEM; 412 goto out; 413 } 414 415 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id); 416 417 cmd->role_id = wlvif->role_id; 418 if (wlvif->band == IEEE80211_BAND_5GHZ) 419 cmd->band = WLCORE_BAND_5GHZ; 420 cmd->channel = wlvif->channel; 421 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 422 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int); 423 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY; 424 cmd->sta.ssid_len = wlvif->ssid_len; 425 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len); 426 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN); 427 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 428 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 429 430 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 431 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 432 if (ret) 433 goto out_free; 434 } 435 cmd->sta.hlid = wlvif->sta.hlid; 436 cmd->sta.session = wl12xx_get_new_session_id(wl, wlvif); 437 cmd->sta.remote_rates = cpu_to_le32(wlvif->rate_set); 438 439 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 440 "basic_rate_set: 0x%x, remote_rates: 0x%x", 441 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 442 wlvif->basic_rate_set, wlvif->rate_set); 443 444 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 445 if (ret < 0) { 446 wl1271_error("failed to initiate cmd role start sta"); 447 goto err_hlid; 448 } 449 450 goto out_free; 451 452err_hlid: 453 /* clear links on error. */ 454 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 455 456out_free: 457 kfree(cmd); 458 459out: 460 return ret; 461} 462 463/* use this function to stop ibss as well */ 464int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 465{ 466 struct wl12xx_cmd_role_stop *cmd; 467 int ret; 468 469 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)) 470 return -EINVAL; 471 472 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 473 if (!cmd) { 474 ret = -ENOMEM; 475 goto out; 476 } 477 478 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id); 479 480 cmd->role_id = wlvif->role_id; 481 cmd->disc_type = DISCONNECT_IMMEDIATE; 482 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 483 484 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 485 if (ret < 0) { 486 wl1271_error("failed to initiate cmd role stop sta"); 487 goto out_free; 488 } 489 490 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 491 492out_free: 493 kfree(cmd); 494 495out: 496 return ret; 497} 498 499int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 500{ 501 struct wl12xx_cmd_role_start *cmd; 502 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 503 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 504 u32 supported_rates; 505 int ret; 506 507 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id); 508 509 /* trying to use hidden SSID with an old hostapd version */ 510 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) { 511 wl1271_error("got a null SSID from beacon/bss"); 512 ret = -EINVAL; 513 goto out; 514 } 515 516 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 517 if (!cmd) { 518 ret = -ENOMEM; 519 goto out; 520 } 521 522 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid); 523 if (ret < 0) 524 goto out_free; 525 526 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid); 527 if (ret < 0) 528 goto out_free_global; 529 530 cmd->role_id = wlvif->role_id; 531 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period); 532 cmd->ap.bss_index = WL1271_AP_BSS_INDEX; 533 cmd->ap.global_hlid = wlvif->ap.global_hlid; 534 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid; 535 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 536 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int); 537 cmd->ap.dtim_interval = bss_conf->dtim_period; 538 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP; 539 /* FIXME: Change when adding DFS */ 540 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */ 541 cmd->channel = wlvif->channel; 542 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 543 544 if (!bss_conf->hidden_ssid) { 545 /* take the SSID from the beacon for backward compatibility */ 546 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC; 547 cmd->ap.ssid_len = wlvif->ssid_len; 548 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len); 549 } else { 550 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN; 551 cmd->ap.ssid_len = bss_conf->ssid_len; 552 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len); 553 } 554 555 supported_rates = CONF_TX_AP_ENABLED_RATES | CONF_TX_MCS_RATES | 556 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif); 557 558 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x", 559 supported_rates); 560 561 cmd->ap.local_rates = cpu_to_le32(supported_rates); 562 563 switch (wlvif->band) { 564 case IEEE80211_BAND_2GHZ: 565 cmd->band = WLCORE_BAND_2_4GHZ; 566 break; 567 case IEEE80211_BAND_5GHZ: 568 cmd->band = WLCORE_BAND_5GHZ; 569 break; 570 default: 571 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band); 572 cmd->band = WLCORE_BAND_2_4GHZ; 573 break; 574 } 575 576 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 577 if (ret < 0) { 578 wl1271_error("failed to initiate cmd role start ap"); 579 goto out_free_bcast; 580 } 581 582 goto out_free; 583 584out_free_bcast: 585 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 586 587out_free_global: 588 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 589 590out_free: 591 kfree(cmd); 592 593out: 594 return ret; 595} 596 597int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 598{ 599 struct wl12xx_cmd_role_stop *cmd; 600 int ret; 601 602 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 603 if (!cmd) { 604 ret = -ENOMEM; 605 goto out; 606 } 607 608 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id); 609 610 cmd->role_id = wlvif->role_id; 611 612 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 613 if (ret < 0) { 614 wl1271_error("failed to initiate cmd role stop ap"); 615 goto out_free; 616 } 617 618 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 619 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 620 621out_free: 622 kfree(cmd); 623 624out: 625 return ret; 626} 627 628int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif) 629{ 630 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 631 struct wl12xx_cmd_role_start *cmd; 632 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 633 int ret; 634 635 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 636 if (!cmd) { 637 ret = -ENOMEM; 638 goto out; 639 } 640 641 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id); 642 643 cmd->role_id = wlvif->role_id; 644 if (wlvif->band == IEEE80211_BAND_5GHZ) 645 cmd->band = WLCORE_BAND_5GHZ; 646 cmd->channel = wlvif->channel; 647 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 648 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int); 649 cmd->ibss.dtim_interval = bss_conf->dtim_period; 650 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY; 651 cmd->ibss.ssid_len = wlvif->ssid_len; 652 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len); 653 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN); 654 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 655 656 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 657 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 658 if (ret) 659 goto out_free; 660 } 661 cmd->ibss.hlid = wlvif->sta.hlid; 662 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set); 663 664 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 665 "basic_rate_set: 0x%x, remote_rates: 0x%x", 666 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 667 wlvif->basic_rate_set, wlvif->rate_set); 668 669 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM", 670 vif->bss_conf.bssid); 671 672 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 673 if (ret < 0) { 674 wl1271_error("failed to initiate cmd role enable"); 675 goto err_hlid; 676 } 677 678 goto out_free; 679 680err_hlid: 681 /* clear links on error. */ 682 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 683 684out_free: 685 kfree(cmd); 686 687out: 688 return ret; 689} 690 691 692/** 693 * send test command to firmware 694 * 695 * @wl: wl struct 696 * @buf: buffer containing the command, with all headers, must work with dma 697 * @len: length of the buffer 698 * @answer: is answer needed 699 */ 700int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer) 701{ 702 int ret; 703 size_t res_len = 0; 704 705 wl1271_debug(DEBUG_CMD, "cmd test"); 706 707 if (answer) 708 res_len = buf_len; 709 710 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len); 711 712 if (ret < 0) { 713 wl1271_warning("TEST command failed"); 714 return ret; 715 } 716 717 return ret; 718} 719EXPORT_SYMBOL_GPL(wl1271_cmd_test); 720 721/** 722 * read acx from firmware 723 * 724 * @wl: wl struct 725 * @id: acx id 726 * @buf: buffer for the response, including all headers, must work with dma 727 * @len: length of buf 728 */ 729int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len) 730{ 731 struct acx_header *acx = buf; 732 int ret; 733 734 wl1271_debug(DEBUG_CMD, "cmd interrogate"); 735 736 acx->id = cpu_to_le16(id); 737 738 /* payload length, does not include any headers */ 739 acx->len = cpu_to_le16(len - sizeof(*acx)); 740 741 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len); 742 if (ret < 0) 743 wl1271_error("INTERROGATE command failed"); 744 745 return ret; 746} 747 748/** 749 * write acx value to firmware 750 * 751 * @wl: wl struct 752 * @id: acx id 753 * @buf: buffer containing acx, including all headers, must work with dma 754 * @len: length of buf 755 */ 756int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len) 757{ 758 struct acx_header *acx = buf; 759 int ret; 760 761 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id); 762 763 acx->id = cpu_to_le16(id); 764 765 /* payload length, does not include any headers */ 766 acx->len = cpu_to_le16(len - sizeof(*acx)); 767 768 ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0); 769 if (ret < 0) { 770 wl1271_warning("CONFIGURE command NOK"); 771 return ret; 772 } 773 774 return 0; 775} 776EXPORT_SYMBOL_GPL(wl1271_cmd_configure); 777 778int wl1271_cmd_data_path(struct wl1271 *wl, bool enable) 779{ 780 struct cmd_enabledisable_path *cmd; 781 int ret; 782 u16 cmd_rx, cmd_tx; 783 784 wl1271_debug(DEBUG_CMD, "cmd data path"); 785 786 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 787 if (!cmd) { 788 ret = -ENOMEM; 789 goto out; 790 } 791 792 /* the channel here is only used for calibration, so hardcoded to 1 */ 793 cmd->channel = 1; 794 795 if (enable) { 796 cmd_rx = CMD_ENABLE_RX; 797 cmd_tx = CMD_ENABLE_TX; 798 } else { 799 cmd_rx = CMD_DISABLE_RX; 800 cmd_tx = CMD_DISABLE_TX; 801 } 802 803 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0); 804 if (ret < 0) { 805 wl1271_error("rx %s cmd for channel %d failed", 806 enable ? "start" : "stop", cmd->channel); 807 goto out; 808 } 809 810 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d", 811 enable ? "start" : "stop", cmd->channel); 812 813 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0); 814 if (ret < 0) { 815 wl1271_error("tx %s cmd for channel %d failed", 816 enable ? "start" : "stop", cmd->channel); 817 goto out; 818 } 819 820 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d", 821 enable ? "start" : "stop", cmd->channel); 822 823out: 824 kfree(cmd); 825 return ret; 826} 827EXPORT_SYMBOL_GPL(wl1271_cmd_data_path); 828 829int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif, 830 u8 ps_mode, u16 auto_ps_timeout) 831{ 832 struct wl1271_cmd_ps_params *ps_params = NULL; 833 int ret = 0; 834 835 wl1271_debug(DEBUG_CMD, "cmd set ps mode"); 836 837 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL); 838 if (!ps_params) { 839 ret = -ENOMEM; 840 goto out; 841 } 842 843 ps_params->role_id = wlvif->role_id; 844 ps_params->ps_mode = ps_mode; 845 ps_params->auto_ps_timeout = auto_ps_timeout; 846 847 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params, 848 sizeof(*ps_params), 0); 849 if (ret < 0) { 850 wl1271_error("cmd set_ps_mode failed"); 851 goto out; 852 } 853 854out: 855 kfree(ps_params); 856 return ret; 857} 858 859int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id, 860 u16 template_id, void *buf, size_t buf_len, 861 int index, u32 rates) 862{ 863 struct wl1271_cmd_template_set *cmd; 864 int ret = 0; 865 866 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)", 867 template_id, role_id); 868 869 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE); 870 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE); 871 872 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 873 if (!cmd) { 874 ret = -ENOMEM; 875 goto out; 876 } 877 878 /* during initialization wlvif is NULL */ 879 cmd->role_id = role_id; 880 cmd->len = cpu_to_le16(buf_len); 881 cmd->template_type = template_id; 882 cmd->enabled_rates = cpu_to_le32(rates); 883 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit; 884 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit; 885 cmd->index = index; 886 887 if (buf) 888 memcpy(cmd->template_data, buf, buf_len); 889 890 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0); 891 if (ret < 0) { 892 wl1271_warning("cmd set_template failed: %d", ret); 893 goto out_free; 894 } 895 896out_free: 897 kfree(cmd); 898 899out: 900 return ret; 901} 902 903int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) 904{ 905 struct sk_buff *skb = NULL; 906 int size; 907 void *ptr; 908 int ret = -ENOMEM; 909 910 911 if (wlvif->bss_type == BSS_TYPE_IBSS) { 912 size = sizeof(struct wl12xx_null_data_template); 913 ptr = NULL; 914 } else { 915 skb = ieee80211_nullfunc_get(wl->hw, 916 wl12xx_wlvif_to_vif(wlvif)); 917 if (!skb) 918 goto out; 919 size = skb->len; 920 ptr = skb->data; 921 } 922 923 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 924 CMD_TEMPL_NULL_DATA, ptr, size, 0, 925 wlvif->basic_rate); 926 927out: 928 dev_kfree_skb(skb); 929 if (ret) 930 wl1271_warning("cmd buld null data failed %d", ret); 931 932 return ret; 933 934} 935 936int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, 937 struct wl12xx_vif *wlvif) 938{ 939 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 940 struct sk_buff *skb = NULL; 941 int ret = -ENOMEM; 942 943 skb = ieee80211_nullfunc_get(wl->hw, vif); 944 if (!skb) 945 goto out; 946 947 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV, 948 skb->data, skb->len, 949 CMD_TEMPL_KLV_IDX_NULL_DATA, 950 wlvif->basic_rate); 951 952out: 953 dev_kfree_skb(skb); 954 if (ret) 955 wl1271_warning("cmd build klv null data failed %d", ret); 956 957 return ret; 958 959} 960 961int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif, 962 u16 aid) 963{ 964 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 965 struct sk_buff *skb; 966 int ret = 0; 967 968 skb = ieee80211_pspoll_get(wl->hw, vif); 969 if (!skb) 970 goto out; 971 972 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 973 CMD_TEMPL_PS_POLL, skb->data, 974 skb->len, 0, wlvif->basic_rate_set); 975 976out: 977 dev_kfree_skb(skb); 978 return ret; 979} 980 981int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif, 982 u8 role_id, u8 band, 983 const u8 *ssid, size_t ssid_len, 984 const u8 *ie, size_t ie_len) 985{ 986 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 987 struct sk_buff *skb; 988 int ret; 989 u32 rate; 990 991 skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len, 992 ie, ie_len); 993 if (!skb) { 994 ret = -ENOMEM; 995 goto out; 996 } 997 998 wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len); 999 1000 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]); 1001 if (band == IEEE80211_BAND_2GHZ) 1002 ret = wl1271_cmd_template_set(wl, role_id, 1003 CMD_TEMPL_CFG_PROBE_REQ_2_4, 1004 skb->data, skb->len, 0, rate); 1005 else 1006 ret = wl1271_cmd_template_set(wl, role_id, 1007 CMD_TEMPL_CFG_PROBE_REQ_5, 1008 skb->data, skb->len, 0, rate); 1009 1010out: 1011 dev_kfree_skb(skb); 1012 return ret; 1013} 1014 1015struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl, 1016 struct wl12xx_vif *wlvif, 1017 struct sk_buff *skb) 1018{ 1019 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1020 int ret; 1021 u32 rate; 1022 1023 if (!skb) 1024 skb = ieee80211_ap_probereq_get(wl->hw, vif); 1025 if (!skb) 1026 goto out; 1027 1028 wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len); 1029 1030 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]); 1031 if (wlvif->band == IEEE80211_BAND_2GHZ) 1032 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1033 CMD_TEMPL_CFG_PROBE_REQ_2_4, 1034 skb->data, skb->len, 0, rate); 1035 else 1036 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1037 CMD_TEMPL_CFG_PROBE_REQ_5, 1038 skb->data, skb->len, 0, rate); 1039 1040 if (ret < 0) 1041 wl1271_error("Unable to set ap probe request template."); 1042 1043out: 1044 return skb; 1045} 1046 1047int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1048{ 1049 int ret, extra = 0; 1050 u16 fc; 1051 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1052 struct sk_buff *skb; 1053 struct wl12xx_arp_rsp_template *tmpl; 1054 struct ieee80211_hdr_3addr *hdr; 1055 struct arphdr *arp_hdr; 1056 1057 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) + 1058 WL1271_EXTRA_SPACE_MAX); 1059 if (!skb) { 1060 wl1271_error("failed to allocate buffer for arp rsp template"); 1061 return -ENOMEM; 1062 } 1063 1064 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX); 1065 1066 tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl)); 1067 memset(tmpl, 0, sizeof(*tmpl)); 1068 1069 /* llc layer */ 1070 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header)); 1071 tmpl->llc_type = cpu_to_be16(ETH_P_ARP); 1072 1073 /* arp header */ 1074 arp_hdr = &tmpl->arp_hdr; 1075 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER); 1076 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP); 1077 arp_hdr->ar_hln = ETH_ALEN; 1078 arp_hdr->ar_pln = 4; 1079 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY); 1080 1081 /* arp payload */ 1082 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN); 1083 tmpl->sender_ip = wlvif->ip_addr; 1084 1085 /* encryption space */ 1086 switch (wlvif->encryption_type) { 1087 case KEY_TKIP: 1088 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) 1089 extra = WL1271_EXTRA_SPACE_TKIP; 1090 break; 1091 case KEY_AES: 1092 extra = WL1271_EXTRA_SPACE_AES; 1093 break; 1094 case KEY_NONE: 1095 case KEY_WEP: 1096 case KEY_GEM: 1097 extra = 0; 1098 break; 1099 default: 1100 wl1271_warning("Unknown encryption type: %d", 1101 wlvif->encryption_type); 1102 ret = -EINVAL; 1103 goto out; 1104 } 1105 1106 if (extra) { 1107 u8 *space = skb_push(skb, extra); 1108 memset(space, 0, extra); 1109 } 1110 1111 /* QoS header - BE */ 1112 if (wlvif->sta.qos) 1113 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16)); 1114 1115 /* mac80211 header */ 1116 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr)); 1117 memset(hdr, 0, sizeof(*hdr)); 1118 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS; 1119 if (wlvif->sta.qos) 1120 fc |= IEEE80211_STYPE_QOS_DATA; 1121 else 1122 fc |= IEEE80211_STYPE_DATA; 1123 if (wlvif->encryption_type != KEY_NONE) 1124 fc |= IEEE80211_FCTL_PROTECTED; 1125 1126 hdr->frame_control = cpu_to_le16(fc); 1127 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN); 1128 memcpy(hdr->addr2, vif->addr, ETH_ALEN); 1129 memset(hdr->addr3, 0xff, ETH_ALEN); 1130 1131 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP, 1132 skb->data, skb->len, 0, 1133 wlvif->basic_rate); 1134out: 1135 dev_kfree_skb(skb); 1136 return ret; 1137} 1138 1139int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif) 1140{ 1141 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 1142 struct ieee80211_qos_hdr template; 1143 1144 memset(&template, 0, sizeof(template)); 1145 1146 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN); 1147 memcpy(template.addr2, vif->addr, ETH_ALEN); 1148 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN); 1149 1150 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 1151 IEEE80211_STYPE_QOS_NULLFUNC | 1152 IEEE80211_FCTL_TODS); 1153 1154 /* FIXME: not sure what priority to use here */ 1155 template.qos_ctrl = cpu_to_le16(0); 1156 1157 return wl1271_cmd_template_set(wl, wlvif->role_id, 1158 CMD_TEMPL_QOS_NULL_DATA, &template, 1159 sizeof(template), 0, 1160 wlvif->basic_rate); 1161} 1162 1163int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid) 1164{ 1165 struct wl1271_cmd_set_keys *cmd; 1166 int ret = 0; 1167 1168 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id); 1169 1170 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1171 if (!cmd) { 1172 ret = -ENOMEM; 1173 goto out; 1174 } 1175 1176 cmd->hlid = hlid; 1177 cmd->key_id = id; 1178 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1179 cmd->key_action = cpu_to_le16(KEY_SET_ID); 1180 cmd->key_type = KEY_WEP; 1181 1182 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1183 if (ret < 0) { 1184 wl1271_warning("cmd set_default_wep_key failed: %d", ret); 1185 goto out; 1186 } 1187 1188out: 1189 kfree(cmd); 1190 1191 return ret; 1192} 1193 1194int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1195 u16 action, u8 id, u8 key_type, 1196 u8 key_size, const u8 *key, const u8 *addr, 1197 u32 tx_seq_32, u16 tx_seq_16) 1198{ 1199 struct wl1271_cmd_set_keys *cmd; 1200 int ret = 0; 1201 1202 /* hlid might have already been deleted */ 1203 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) 1204 return 0; 1205 1206 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1207 if (!cmd) { 1208 ret = -ENOMEM; 1209 goto out; 1210 } 1211 1212 cmd->hlid = wlvif->sta.hlid; 1213 1214 if (key_type == KEY_WEP) 1215 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1216 else if (is_broadcast_ether_addr(addr)) 1217 cmd->lid_key_type = BROADCAST_LID_TYPE; 1218 else 1219 cmd->lid_key_type = UNICAST_LID_TYPE; 1220 1221 cmd->key_action = cpu_to_le16(action); 1222 cmd->key_size = key_size; 1223 cmd->key_type = key_type; 1224 1225 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1226 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1227 1228 cmd->key_id = id; 1229 1230 if (key_type == KEY_TKIP) { 1231 /* 1232 * We get the key in the following form: 1233 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1234 * but the target is expecting: 1235 * TKIP - RX MIC - TX MIC 1236 */ 1237 memcpy(cmd->key, key, 16); 1238 memcpy(cmd->key + 16, key + 24, 8); 1239 memcpy(cmd->key + 24, key + 16, 8); 1240 1241 } else { 1242 memcpy(cmd->key, key, key_size); 1243 } 1244 1245 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd)); 1246 1247 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1248 if (ret < 0) { 1249 wl1271_warning("could not set keys"); 1250 goto out; 1251 } 1252 1253out: 1254 kfree(cmd); 1255 1256 return ret; 1257} 1258 1259/* 1260 * TODO: merge with sta/ibss into 1 set_key function. 1261 * note there are slight diffs 1262 */ 1263int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1264 u16 action, u8 id, u8 key_type, 1265 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32, 1266 u16 tx_seq_16) 1267{ 1268 struct wl1271_cmd_set_keys *cmd; 1269 int ret = 0; 1270 u8 lid_type; 1271 1272 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1273 if (!cmd) 1274 return -ENOMEM; 1275 1276 if (hlid == wlvif->ap.bcast_hlid) { 1277 if (key_type == KEY_WEP) 1278 lid_type = WEP_DEFAULT_LID_TYPE; 1279 else 1280 lid_type = BROADCAST_LID_TYPE; 1281 } else { 1282 lid_type = UNICAST_LID_TYPE; 1283 } 1284 1285 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d" 1286 " hlid: %d", (int)action, (int)id, (int)lid_type, 1287 (int)key_type, (int)hlid); 1288 1289 cmd->lid_key_type = lid_type; 1290 cmd->hlid = hlid; 1291 cmd->key_action = cpu_to_le16(action); 1292 cmd->key_size = key_size; 1293 cmd->key_type = key_type; 1294 cmd->key_id = id; 1295 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1296 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1297 1298 if (key_type == KEY_TKIP) { 1299 /* 1300 * We get the key in the following form: 1301 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1302 * but the target is expecting: 1303 * TKIP - RX MIC - TX MIC 1304 */ 1305 memcpy(cmd->key, key, 16); 1306 memcpy(cmd->key + 16, key + 24, 8); 1307 memcpy(cmd->key + 24, key + 16, 8); 1308 } else { 1309 memcpy(cmd->key, key, key_size); 1310 } 1311 1312 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd)); 1313 1314 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1315 if (ret < 0) { 1316 wl1271_warning("could not set ap keys"); 1317 goto out; 1318 } 1319 1320out: 1321 kfree(cmd); 1322 return ret; 1323} 1324 1325int wl12xx_cmd_set_peer_state(struct wl1271 *wl, u8 hlid) 1326{ 1327 struct wl12xx_cmd_set_peer_state *cmd; 1328 int ret = 0; 1329 1330 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid); 1331 1332 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1333 if (!cmd) { 1334 ret = -ENOMEM; 1335 goto out; 1336 } 1337 1338 cmd->hlid = hlid; 1339 cmd->state = WL1271_CMD_STA_STATE_CONNECTED; 1340 1341 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0); 1342 if (ret < 0) { 1343 wl1271_error("failed to send set peer state command"); 1344 goto out_free; 1345 } 1346 1347out_free: 1348 kfree(cmd); 1349 1350out: 1351 return ret; 1352} 1353 1354int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1355 struct ieee80211_sta *sta, u8 hlid) 1356{ 1357 struct wl12xx_cmd_add_peer *cmd; 1358 int i, ret; 1359 u32 sta_rates; 1360 1361 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid); 1362 1363 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1364 if (!cmd) { 1365 ret = -ENOMEM; 1366 goto out; 1367 } 1368 1369 memcpy(cmd->addr, sta->addr, ETH_ALEN); 1370 cmd->bss_index = WL1271_AP_BSS_INDEX; 1371 cmd->aid = sta->aid; 1372 cmd->hlid = hlid; 1373 cmd->sp_len = sta->max_sp; 1374 cmd->wmm = sta->wme ? 1 : 0; 1375 1376 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++) 1377 if (sta->wme && (sta->uapsd_queues & BIT(i))) 1378 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1379 WL1271_PSD_UPSD_TRIGGER; 1380 else 1381 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1382 WL1271_PSD_LEGACY; 1383 1384 1385 sta_rates = sta->supp_rates[wlvif->band]; 1386 if (sta->ht_cap.ht_supported) 1387 sta_rates |= 1388 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) | 1389 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET); 1390 1391 cmd->supported_rates = 1392 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates, 1393 wlvif->band)); 1394 1395 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x", 1396 cmd->supported_rates, sta->uapsd_queues); 1397 1398 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0); 1399 if (ret < 0) { 1400 wl1271_error("failed to initiate cmd add peer"); 1401 goto out_free; 1402 } 1403 1404out_free: 1405 kfree(cmd); 1406 1407out: 1408 return ret; 1409} 1410 1411int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid) 1412{ 1413 struct wl12xx_cmd_remove_peer *cmd; 1414 int ret; 1415 1416 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid); 1417 1418 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1419 if (!cmd) { 1420 ret = -ENOMEM; 1421 goto out; 1422 } 1423 1424 cmd->hlid = hlid; 1425 /* We never send a deauth, mac80211 is in charge of this */ 1426 cmd->reason_opcode = 0; 1427 cmd->send_deauth_flag = 0; 1428 1429 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0); 1430 if (ret < 0) { 1431 wl1271_error("failed to initiate cmd remove peer"); 1432 goto out_free; 1433 } 1434 1435 /* 1436 * We are ok with a timeout here. The event is sometimes not sent 1437 * due to a firmware bug. 1438 */ 1439 wl1271_cmd_wait_for_event_or_timeout(wl, 1440 PEER_REMOVE_COMPLETE_EVENT_ID); 1441 1442out_free: 1443 kfree(cmd); 1444 1445out: 1446 return ret; 1447} 1448 1449int wl12xx_cmd_config_fwlog(struct wl1271 *wl) 1450{ 1451 struct wl12xx_cmd_config_fwlog *cmd; 1452 int ret = 0; 1453 1454 wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); 1455 1456 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1457 if (!cmd) { 1458 ret = -ENOMEM; 1459 goto out; 1460 } 1461 1462 cmd->logger_mode = wl->conf.fwlog.mode; 1463 cmd->log_severity = wl->conf.fwlog.severity; 1464 cmd->timestamp = wl->conf.fwlog.timestamp; 1465 cmd->output = wl->conf.fwlog.output; 1466 cmd->threshold = wl->conf.fwlog.threshold; 1467 1468 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); 1469 if (ret < 0) { 1470 wl1271_error("failed to send config firmware logger command"); 1471 goto out_free; 1472 } 1473 1474out_free: 1475 kfree(cmd); 1476 1477out: 1478 return ret; 1479} 1480 1481int wl12xx_cmd_start_fwlog(struct wl1271 *wl) 1482{ 1483 struct wl12xx_cmd_start_fwlog *cmd; 1484 int ret = 0; 1485 1486 wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); 1487 1488 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1489 if (!cmd) { 1490 ret = -ENOMEM; 1491 goto out; 1492 } 1493 1494 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); 1495 if (ret < 0) { 1496 wl1271_error("failed to send start firmware logger command"); 1497 goto out_free; 1498 } 1499 1500out_free: 1501 kfree(cmd); 1502 1503out: 1504 return ret; 1505} 1506 1507int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) 1508{ 1509 struct wl12xx_cmd_stop_fwlog *cmd; 1510 int ret = 0; 1511 1512 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); 1513 1514 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1515 if (!cmd) { 1516 ret = -ENOMEM; 1517 goto out; 1518 } 1519 1520 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); 1521 if (ret < 0) { 1522 wl1271_error("failed to send stop firmware logger command"); 1523 goto out_free; 1524 } 1525 1526out_free: 1527 kfree(cmd); 1528 1529out: 1530 return ret; 1531} 1532 1533static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1534 u8 role_id) 1535{ 1536 struct wl12xx_cmd_roc *cmd; 1537 int ret = 0; 1538 1539 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", wlvif->channel, role_id); 1540 1541 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID)) 1542 return -EINVAL; 1543 1544 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1545 if (!cmd) { 1546 ret = -ENOMEM; 1547 goto out; 1548 } 1549 1550 cmd->role_id = role_id; 1551 cmd->channel = wlvif->channel; 1552 switch (wlvif->band) { 1553 case IEEE80211_BAND_2GHZ: 1554 cmd->band = WLCORE_BAND_2_4GHZ; 1555 break; 1556 case IEEE80211_BAND_5GHZ: 1557 cmd->band = WLCORE_BAND_5GHZ; 1558 break; 1559 default: 1560 wl1271_error("roc - unknown band: %d", (int)wlvif->band); 1561 ret = -EINVAL; 1562 goto out_free; 1563 } 1564 1565 1566 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0); 1567 if (ret < 0) { 1568 wl1271_error("failed to send ROC command"); 1569 goto out_free; 1570 } 1571 1572out_free: 1573 kfree(cmd); 1574 1575out: 1576 return ret; 1577} 1578 1579static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id) 1580{ 1581 struct wl12xx_cmd_croc *cmd; 1582 int ret = 0; 1583 1584 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id); 1585 1586 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1587 if (!cmd) { 1588 ret = -ENOMEM; 1589 goto out; 1590 } 1591 cmd->role_id = role_id; 1592 1593 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd, 1594 sizeof(*cmd), 0); 1595 if (ret < 0) { 1596 wl1271_error("failed to send ROC command"); 1597 goto out_free; 1598 } 1599 1600out_free: 1601 kfree(cmd); 1602 1603out: 1604 return ret; 1605} 1606 1607int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id) 1608{ 1609 int ret = 0; 1610 bool is_first_roc; 1611 1612 if (WARN_ON(test_bit(role_id, wl->roc_map))) 1613 return 0; 1614 1615 is_first_roc = (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= 1616 WL12XX_MAX_ROLES); 1617 1618 ret = wl12xx_cmd_roc(wl, wlvif, role_id); 1619 if (ret < 0) 1620 goto out; 1621 1622 if (is_first_roc) { 1623 ret = wl1271_cmd_wait_for_event(wl, 1624 REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID); 1625 if (ret < 0) { 1626 wl1271_error("cmd roc event completion error"); 1627 goto out; 1628 } 1629 } 1630 1631 __set_bit(role_id, wl->roc_map); 1632out: 1633 return ret; 1634} 1635 1636int wl12xx_croc(struct wl1271 *wl, u8 role_id) 1637{ 1638 int ret = 0; 1639 1640 if (WARN_ON(!test_bit(role_id, wl->roc_map))) 1641 return 0; 1642 1643 ret = wl12xx_cmd_croc(wl, role_id); 1644 if (ret < 0) 1645 goto out; 1646 1647 __clear_bit(role_id, wl->roc_map); 1648 1649 /* 1650 * Rearm the tx watchdog when removing the last ROC. This prevents 1651 * recoveries due to just finished ROCs - when Tx hasn't yet had 1652 * a chance to get out. 1653 */ 1654 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) 1655 wl12xx_rearm_tx_watchdog_locked(wl); 1656out: 1657 return ret; 1658} 1659 1660int wl12xx_cmd_channel_switch(struct wl1271 *wl, 1661 struct wl12xx_vif *wlvif, 1662 struct ieee80211_channel_switch *ch_switch) 1663{ 1664 struct wl12xx_cmd_channel_switch *cmd; 1665 int ret; 1666 1667 wl1271_debug(DEBUG_ACX, "cmd channel switch"); 1668 1669 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1670 if (!cmd) { 1671 ret = -ENOMEM; 1672 goto out; 1673 } 1674 1675 cmd->role_id = wlvif->role_id; 1676 cmd->channel = ch_switch->channel->hw_value; 1677 cmd->switch_time = ch_switch->count; 1678 cmd->stop_tx = ch_switch->block_tx; 1679 1680 /* FIXME: control from mac80211 in the future */ 1681 cmd->post_switch_tx_disable = 0; /* Enable TX on the target channel */ 1682 1683 ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0); 1684 if (ret < 0) { 1685 wl1271_error("failed to send channel switch command"); 1686 goto out_free; 1687 } 1688 1689out_free: 1690 kfree(cmd); 1691 1692out: 1693 return ret; 1694} 1695 1696int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl) 1697{ 1698 struct wl12xx_cmd_stop_channel_switch *cmd; 1699 int ret; 1700 1701 wl1271_debug(DEBUG_ACX, "cmd stop channel switch"); 1702 1703 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1704 if (!cmd) { 1705 ret = -ENOMEM; 1706 goto out; 1707 } 1708 1709 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0); 1710 if (ret < 0) { 1711 wl1271_error("failed to stop channel switch command"); 1712 goto out_free; 1713 } 1714 1715out_free: 1716 kfree(cmd); 1717 1718out: 1719 return ret; 1720} 1721 1722/* start dev role and roc on its channel */ 1723int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1724{ 1725 int ret; 1726 1727 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1728 wlvif->bss_type == BSS_TYPE_IBSS))) 1729 return -EINVAL; 1730 1731 ret = wl12xx_cmd_role_start_dev(wl, wlvif); 1732 if (ret < 0) 1733 goto out; 1734 1735 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id); 1736 if (ret < 0) 1737 goto out_stop; 1738 1739 return 0; 1740 1741out_stop: 1742 wl12xx_cmd_role_stop_dev(wl, wlvif); 1743out: 1744 return ret; 1745} 1746 1747/* croc dev hlid, and stop the role */ 1748int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1749{ 1750 int ret; 1751 1752 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1753 wlvif->bss_type == BSS_TYPE_IBSS))) 1754 return -EINVAL; 1755 1756 /* flush all pending packets */ 1757 wl1271_tx_work_locked(wl); 1758 1759 if (test_bit(wlvif->dev_role_id, wl->roc_map)) { 1760 ret = wl12xx_croc(wl, wlvif->dev_role_id); 1761 if (ret < 0) 1762 goto out; 1763 } 1764 1765 ret = wl12xx_cmd_role_stop_dev(wl, wlvif); 1766 if (ret < 0) 1767 goto out; 1768out: 1769 return ret; 1770} 1771