cmd.c revision c45ee4ff1f66b2a02f51b8a2c1c3dcfd7faefab0
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 cmd = buf; 63 cmd->id = cpu_to_le16(id); 64 cmd->status = 0; 65 66 WARN_ON(len % 4 != 0); 67 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags)); 68 69 ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false); 70 if (ret < 0) 71 goto fail; 72 73 /* 74 * TODO: we just need this because one bit is in a different 75 * place. Is there any better way? 76 */ 77 ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len); 78 if (ret < 0) 79 goto fail; 80 81 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT); 82 83 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); 84 if (ret < 0) 85 goto fail; 86 87 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) { 88 if (time_after(jiffies, timeout)) { 89 wl1271_error("command complete timeout"); 90 ret = -ETIMEDOUT; 91 goto fail; 92 } 93 94 poll_count++; 95 if (poll_count < WL1271_CMD_FAST_POLL_COUNT) 96 udelay(10); 97 else 98 msleep(1); 99 100 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr); 101 if (ret < 0) 102 goto fail; 103 } 104 105 /* read back the status code of the command */ 106 if (res_len == 0) 107 res_len = sizeof(struct wl1271_cmd_header); 108 109 ret = wlcore_read(wl, wl->cmd_box_addr, cmd, res_len, false); 110 if (ret < 0) 111 goto fail; 112 113 status = le16_to_cpu(cmd->status); 114 if (status != CMD_STATUS_SUCCESS) { 115 wl1271_error("command execute failure %d", status); 116 ret = -EIO; 117 goto fail; 118 } 119 120 ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK, 121 WL1271_ACX_INTR_CMD_COMPLETE); 122 if (ret < 0) 123 goto fail; 124 125 return 0; 126 127fail: 128 wl12xx_queue_recovery_work(wl); 129 return ret; 130} 131 132/* 133 * Poll the mailbox event field until any of the bits in the mask is set or a 134 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs) 135 */ 136static int wl1271_cmd_wait_for_event_or_timeout(struct wl1271 *wl, 137 u32 mask, bool *timeout) 138{ 139 u32 *events_vector; 140 u32 event; 141 unsigned long timeout_time; 142 u16 poll_count = 0; 143 int ret = 0; 144 145 *timeout = false; 146 147 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA); 148 if (!events_vector) 149 return -ENOMEM; 150 151 timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT); 152 153 do { 154 if (time_after(jiffies, timeout_time)) { 155 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d", 156 (int)mask); 157 *timeout = true; 158 goto out; 159 } 160 161 poll_count++; 162 if (poll_count < WL1271_WAIT_EVENT_FAST_POLL_COUNT) 163 usleep_range(50, 51); 164 else 165 usleep_range(1000, 5000); 166 167 /* read from both event fields */ 168 ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector, 169 sizeof(*events_vector), false); 170 if (ret < 0) 171 goto out; 172 173 event = *events_vector & mask; 174 175 ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector, 176 sizeof(*events_vector), false); 177 if (ret < 0) 178 goto out; 179 180 event |= *events_vector & mask; 181 } while (!event); 182 183out: 184 kfree(events_vector); 185 return ret; 186} 187 188static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask) 189{ 190 int ret; 191 bool timeout = false; 192 193 ret = wl1271_cmd_wait_for_event_or_timeout(wl, mask, &timeout); 194 if (ret != 0 || timeout) { 195 wl12xx_queue_recovery_work(wl); 196 return ret; 197 } 198 199 return 0; 200} 201 202int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type, 203 u8 *role_id) 204{ 205 struct wl12xx_cmd_role_enable *cmd; 206 int ret; 207 208 wl1271_debug(DEBUG_CMD, "cmd role enable"); 209 210 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID)) 211 return -EBUSY; 212 213 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 214 if (!cmd) { 215 ret = -ENOMEM; 216 goto out; 217 } 218 219 /* get role id */ 220 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES); 221 if (cmd->role_id >= WL12XX_MAX_ROLES) { 222 ret = -EBUSY; 223 goto out_free; 224 } 225 226 memcpy(cmd->mac_address, addr, ETH_ALEN); 227 cmd->role_type = role_type; 228 229 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0); 230 if (ret < 0) { 231 wl1271_error("failed to initiate cmd role enable"); 232 goto out_free; 233 } 234 235 __set_bit(cmd->role_id, wl->roles_map); 236 *role_id = cmd->role_id; 237 238out_free: 239 kfree(cmd); 240 241out: 242 return ret; 243} 244 245int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id) 246{ 247 struct wl12xx_cmd_role_disable *cmd; 248 int ret; 249 250 wl1271_debug(DEBUG_CMD, "cmd role disable"); 251 252 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID)) 253 return -ENOENT; 254 255 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 256 if (!cmd) { 257 ret = -ENOMEM; 258 goto out; 259 } 260 cmd->role_id = *role_id; 261 262 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0); 263 if (ret < 0) { 264 wl1271_error("failed to initiate cmd role disable"); 265 goto out_free; 266 } 267 268 __clear_bit(*role_id, wl->roles_map); 269 *role_id = WL12XX_INVALID_ROLE_ID; 270 271out_free: 272 kfree(cmd); 273 274out: 275 return ret; 276} 277 278int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 279{ 280 unsigned long flags; 281 u8 link = find_first_zero_bit(wl->links_map, WL12XX_MAX_LINKS); 282 if (link >= WL12XX_MAX_LINKS) 283 return -EBUSY; 284 285 /* these bits are used by op_tx */ 286 spin_lock_irqsave(&wl->wl_lock, flags); 287 __set_bit(link, wl->links_map); 288 __set_bit(link, wlvif->links_map); 289 spin_unlock_irqrestore(&wl->wl_lock, flags); 290 *hlid = link; 291 return 0; 292} 293 294void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 295{ 296 unsigned long flags; 297 298 if (*hlid == WL12XX_INVALID_LINK_ID) 299 return; 300 301 /* these bits are used by op_tx */ 302 spin_lock_irqsave(&wl->wl_lock, flags); 303 __clear_bit(*hlid, wl->links_map); 304 __clear_bit(*hlid, wlvif->links_map); 305 spin_unlock_irqrestore(&wl->wl_lock, flags); 306 307 /* 308 * At this point op_tx() will not add more packets to the queues. We 309 * can purge them. 310 */ 311 wl1271_tx_reset_link_queues(wl, *hlid); 312 313 *hlid = WL12XX_INVALID_LINK_ID; 314} 315 316static int wl12xx_get_new_session_id(struct wl1271 *wl, 317 struct wl12xx_vif *wlvif) 318{ 319 if (wlvif->session_counter >= SESSION_COUNTER_MAX) 320 wlvif->session_counter = 0; 321 322 wlvif->session_counter++; 323 324 return wlvif->session_counter; 325} 326 327static u8 wlcore_get_native_channel_type(u8 nl_channel_type) 328{ 329 switch (nl_channel_type) { 330 case NL80211_CHAN_NO_HT: 331 return WLCORE_CHAN_NO_HT; 332 case NL80211_CHAN_HT20: 333 return WLCORE_CHAN_HT20; 334 case NL80211_CHAN_HT40MINUS: 335 return WLCORE_CHAN_HT40MINUS; 336 case NL80211_CHAN_HT40PLUS: 337 return WLCORE_CHAN_HT40PLUS; 338 default: 339 WARN_ON(1); 340 return WLCORE_CHAN_NO_HT; 341 } 342} 343 344static int wl12xx_cmd_role_start_dev(struct wl1271 *wl, 345 struct wl12xx_vif *wlvif) 346{ 347 struct wl12xx_cmd_role_start *cmd; 348 int ret; 349 350 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 351 if (!cmd) { 352 ret = -ENOMEM; 353 goto out; 354 } 355 356 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id); 357 358 cmd->role_id = wlvif->dev_role_id; 359 if (wlvif->band == IEEE80211_BAND_5GHZ) 360 cmd->band = WLCORE_BAND_5GHZ; 361 cmd->channel = wlvif->channel; 362 363 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) { 364 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid); 365 if (ret) 366 goto out_free; 367 } 368 cmd->device.hlid = wlvif->dev_hlid; 369 cmd->device.session = wl12xx_get_new_session_id(wl, wlvif); 370 371 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d", 372 cmd->role_id, cmd->device.hlid, cmd->device.session); 373 374 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 375 if (ret < 0) { 376 wl1271_error("failed to initiate cmd role enable"); 377 goto err_hlid; 378 } 379 380 goto out_free; 381 382err_hlid: 383 /* clear links on error */ 384 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 385 386out_free: 387 kfree(cmd); 388 389out: 390 return ret; 391} 392 393static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, 394 struct wl12xx_vif *wlvif) 395{ 396 struct wl12xx_cmd_role_stop *cmd; 397 int ret; 398 399 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID)) 400 return -EINVAL; 401 402 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 403 if (!cmd) { 404 ret = -ENOMEM; 405 goto out; 406 } 407 408 wl1271_debug(DEBUG_CMD, "cmd role stop dev"); 409 410 cmd->role_id = wlvif->dev_role_id; 411 cmd->disc_type = DISCONNECT_IMMEDIATE; 412 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 413 414 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 415 if (ret < 0) { 416 wl1271_error("failed to initiate cmd role stop"); 417 goto out_free; 418 } 419 420 ret = wl1271_cmd_wait_for_event(wl, ROLE_STOP_COMPLETE_EVENT_ID); 421 if (ret < 0) { 422 wl1271_error("cmd role stop dev event completion error"); 423 goto out_free; 424 } 425 426 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 427 428out_free: 429 kfree(cmd); 430 431out: 432 return ret; 433} 434 435int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 436{ 437 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 438 struct wl12xx_cmd_role_start *cmd; 439 int ret; 440 441 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 442 if (!cmd) { 443 ret = -ENOMEM; 444 goto out; 445 } 446 447 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id); 448 449 cmd->role_id = wlvif->role_id; 450 if (wlvif->band == IEEE80211_BAND_5GHZ) 451 cmd->band = WLCORE_BAND_5GHZ; 452 cmd->channel = wlvif->channel; 453 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 454 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int); 455 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY; 456 cmd->sta.ssid_len = wlvif->ssid_len; 457 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len); 458 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN); 459 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 460 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 461 462 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 463 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 464 if (ret) 465 goto out_free; 466 } 467 cmd->sta.hlid = wlvif->sta.hlid; 468 cmd->sta.session = wl12xx_get_new_session_id(wl, wlvif); 469 cmd->sta.remote_rates = cpu_to_le32(wlvif->rate_set); 470 471 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 472 "basic_rate_set: 0x%x, remote_rates: 0x%x", 473 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 474 wlvif->basic_rate_set, wlvif->rate_set); 475 476 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 477 if (ret < 0) { 478 wl1271_error("failed to initiate cmd role start sta"); 479 goto err_hlid; 480 } 481 482 goto out_free; 483 484err_hlid: 485 /* clear links on error. */ 486 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 487 488out_free: 489 kfree(cmd); 490 491out: 492 return ret; 493} 494 495/* use this function to stop ibss as well */ 496int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 497{ 498 struct wl12xx_cmd_role_stop *cmd; 499 int ret; 500 501 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)) 502 return -EINVAL; 503 504 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 505 if (!cmd) { 506 ret = -ENOMEM; 507 goto out; 508 } 509 510 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id); 511 512 cmd->role_id = wlvif->role_id; 513 cmd->disc_type = DISCONNECT_IMMEDIATE; 514 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 515 516 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 517 if (ret < 0) { 518 wl1271_error("failed to initiate cmd role stop sta"); 519 goto out_free; 520 } 521 522 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 523 524out_free: 525 kfree(cmd); 526 527out: 528 return ret; 529} 530 531int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 532{ 533 struct wl12xx_cmd_role_start *cmd; 534 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 535 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 536 u32 supported_rates; 537 int ret; 538 539 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id); 540 541 /* trying to use hidden SSID with an old hostapd version */ 542 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) { 543 wl1271_error("got a null SSID from beacon/bss"); 544 ret = -EINVAL; 545 goto out; 546 } 547 548 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 549 if (!cmd) { 550 ret = -ENOMEM; 551 goto out; 552 } 553 554 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid); 555 if (ret < 0) 556 goto out_free; 557 558 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid); 559 if (ret < 0) 560 goto out_free_global; 561 562 cmd->role_id = wlvif->role_id; 563 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period); 564 cmd->ap.bss_index = WL1271_AP_BSS_INDEX; 565 cmd->ap.global_hlid = wlvif->ap.global_hlid; 566 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid; 567 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 568 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int); 569 cmd->ap.dtim_interval = bss_conf->dtim_period; 570 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP; 571 /* FIXME: Change when adding DFS */ 572 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */ 573 cmd->channel = wlvif->channel; 574 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type); 575 576 if (!bss_conf->hidden_ssid) { 577 /* take the SSID from the beacon for backward compatibility */ 578 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC; 579 cmd->ap.ssid_len = wlvif->ssid_len; 580 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len); 581 } else { 582 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN; 583 cmd->ap.ssid_len = bss_conf->ssid_len; 584 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len); 585 } 586 587 supported_rates = CONF_TX_AP_ENABLED_RATES | CONF_TX_MCS_RATES | 588 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif); 589 590 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x", 591 supported_rates); 592 593 cmd->ap.local_rates = cpu_to_le32(supported_rates); 594 595 switch (wlvif->band) { 596 case IEEE80211_BAND_2GHZ: 597 cmd->band = WLCORE_BAND_2_4GHZ; 598 break; 599 case IEEE80211_BAND_5GHZ: 600 cmd->band = WLCORE_BAND_5GHZ; 601 break; 602 default: 603 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band); 604 cmd->band = WLCORE_BAND_2_4GHZ; 605 break; 606 } 607 608 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 609 if (ret < 0) { 610 wl1271_error("failed to initiate cmd role start ap"); 611 goto out_free_bcast; 612 } 613 614 goto out_free; 615 616out_free_bcast: 617 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 618 619out_free_global: 620 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 621 622out_free: 623 kfree(cmd); 624 625out: 626 return ret; 627} 628 629int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 630{ 631 struct wl12xx_cmd_role_stop *cmd; 632 int ret; 633 634 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 635 if (!cmd) { 636 ret = -ENOMEM; 637 goto out; 638 } 639 640 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id); 641 642 cmd->role_id = wlvif->role_id; 643 644 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 645 if (ret < 0) { 646 wl1271_error("failed to initiate cmd role stop ap"); 647 goto out_free; 648 } 649 650 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 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_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif) 661{ 662 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 663 struct wl12xx_cmd_role_start *cmd; 664 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 665 int ret; 666 667 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 668 if (!cmd) { 669 ret = -ENOMEM; 670 goto out; 671 } 672 673 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id); 674 675 cmd->role_id = wlvif->role_id; 676 if (wlvif->band == IEEE80211_BAND_5GHZ) 677 cmd->band = WLCORE_BAND_5GHZ; 678 cmd->channel = wlvif->channel; 679 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 680 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int); 681 cmd->ibss.dtim_interval = bss_conf->dtim_period; 682 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY; 683 cmd->ibss.ssid_len = wlvif->ssid_len; 684 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len); 685 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN); 686 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 687 688 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 689 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 690 if (ret) 691 goto out_free; 692 } 693 cmd->ibss.hlid = wlvif->sta.hlid; 694 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set); 695 696 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 697 "basic_rate_set: 0x%x, remote_rates: 0x%x", 698 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 699 wlvif->basic_rate_set, wlvif->rate_set); 700 701 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM", 702 vif->bss_conf.bssid); 703 704 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 705 if (ret < 0) { 706 wl1271_error("failed to initiate cmd role enable"); 707 goto err_hlid; 708 } 709 710 goto out_free; 711 712err_hlid: 713 /* clear links on error. */ 714 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 715 716out_free: 717 kfree(cmd); 718 719out: 720 return ret; 721} 722 723 724/** 725 * send test command to firmware 726 * 727 * @wl: wl struct 728 * @buf: buffer containing the command, with all headers, must work with dma 729 * @len: length of the buffer 730 * @answer: is answer needed 731 */ 732int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer) 733{ 734 int ret; 735 size_t res_len = 0; 736 737 wl1271_debug(DEBUG_CMD, "cmd test"); 738 739 if (answer) 740 res_len = buf_len; 741 742 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len); 743 744 if (ret < 0) { 745 wl1271_warning("TEST command failed"); 746 return ret; 747 } 748 749 return ret; 750} 751EXPORT_SYMBOL_GPL(wl1271_cmd_test); 752 753/** 754 * read acx from firmware 755 * 756 * @wl: wl struct 757 * @id: acx id 758 * @buf: buffer for the response, including all headers, must work with dma 759 * @len: length of buf 760 */ 761int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len) 762{ 763 struct acx_header *acx = buf; 764 int ret; 765 766 wl1271_debug(DEBUG_CMD, "cmd interrogate"); 767 768 acx->id = cpu_to_le16(id); 769 770 /* payload length, does not include any headers */ 771 acx->len = cpu_to_le16(len - sizeof(*acx)); 772 773 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len); 774 if (ret < 0) 775 wl1271_error("INTERROGATE command failed"); 776 777 return ret; 778} 779 780/** 781 * write acx value to firmware 782 * 783 * @wl: wl struct 784 * @id: acx id 785 * @buf: buffer containing acx, including all headers, must work with dma 786 * @len: length of buf 787 */ 788int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len) 789{ 790 struct acx_header *acx = buf; 791 int ret; 792 793 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id); 794 795 acx->id = cpu_to_le16(id); 796 797 /* payload length, does not include any headers */ 798 acx->len = cpu_to_le16(len - sizeof(*acx)); 799 800 ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0); 801 if (ret < 0) { 802 wl1271_warning("CONFIGURE command NOK"); 803 return ret; 804 } 805 806 return 0; 807} 808EXPORT_SYMBOL_GPL(wl1271_cmd_configure); 809 810int wl1271_cmd_data_path(struct wl1271 *wl, bool enable) 811{ 812 struct cmd_enabledisable_path *cmd; 813 int ret; 814 u16 cmd_rx, cmd_tx; 815 816 wl1271_debug(DEBUG_CMD, "cmd data path"); 817 818 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 819 if (!cmd) { 820 ret = -ENOMEM; 821 goto out; 822 } 823 824 /* the channel here is only used for calibration, so hardcoded to 1 */ 825 cmd->channel = 1; 826 827 if (enable) { 828 cmd_rx = CMD_ENABLE_RX; 829 cmd_tx = CMD_ENABLE_TX; 830 } else { 831 cmd_rx = CMD_DISABLE_RX; 832 cmd_tx = CMD_DISABLE_TX; 833 } 834 835 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0); 836 if (ret < 0) { 837 wl1271_error("rx %s cmd for channel %d failed", 838 enable ? "start" : "stop", cmd->channel); 839 goto out; 840 } 841 842 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d", 843 enable ? "start" : "stop", cmd->channel); 844 845 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0); 846 if (ret < 0) { 847 wl1271_error("tx %s cmd for channel %d failed", 848 enable ? "start" : "stop", cmd->channel); 849 goto out; 850 } 851 852 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d", 853 enable ? "start" : "stop", cmd->channel); 854 855out: 856 kfree(cmd); 857 return ret; 858} 859EXPORT_SYMBOL_GPL(wl1271_cmd_data_path); 860 861int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif, 862 u8 ps_mode, u16 auto_ps_timeout) 863{ 864 struct wl1271_cmd_ps_params *ps_params = NULL; 865 int ret = 0; 866 867 wl1271_debug(DEBUG_CMD, "cmd set ps mode"); 868 869 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL); 870 if (!ps_params) { 871 ret = -ENOMEM; 872 goto out; 873 } 874 875 ps_params->role_id = wlvif->role_id; 876 ps_params->ps_mode = ps_mode; 877 ps_params->auto_ps_timeout = auto_ps_timeout; 878 879 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params, 880 sizeof(*ps_params), 0); 881 if (ret < 0) { 882 wl1271_error("cmd set_ps_mode failed"); 883 goto out; 884 } 885 886out: 887 kfree(ps_params); 888 return ret; 889} 890 891int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id, 892 u16 template_id, void *buf, size_t buf_len, 893 int index, u32 rates) 894{ 895 struct wl1271_cmd_template_set *cmd; 896 int ret = 0; 897 898 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)", 899 template_id, role_id); 900 901 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE); 902 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE); 903 904 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 905 if (!cmd) { 906 ret = -ENOMEM; 907 goto out; 908 } 909 910 /* during initialization wlvif is NULL */ 911 cmd->role_id = role_id; 912 cmd->len = cpu_to_le16(buf_len); 913 cmd->template_type = template_id; 914 cmd->enabled_rates = cpu_to_le32(rates); 915 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit; 916 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit; 917 cmd->index = index; 918 919 if (buf) 920 memcpy(cmd->template_data, buf, buf_len); 921 922 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0); 923 if (ret < 0) { 924 wl1271_warning("cmd set_template failed: %d", ret); 925 goto out_free; 926 } 927 928out_free: 929 kfree(cmd); 930 931out: 932 return ret; 933} 934 935int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) 936{ 937 struct sk_buff *skb = NULL; 938 int size; 939 void *ptr; 940 int ret = -ENOMEM; 941 942 943 if (wlvif->bss_type == BSS_TYPE_IBSS) { 944 size = sizeof(struct wl12xx_null_data_template); 945 ptr = NULL; 946 } else { 947 skb = ieee80211_nullfunc_get(wl->hw, 948 wl12xx_wlvif_to_vif(wlvif)); 949 if (!skb) 950 goto out; 951 size = skb->len; 952 ptr = skb->data; 953 } 954 955 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 956 CMD_TEMPL_NULL_DATA, ptr, size, 0, 957 wlvif->basic_rate); 958 959out: 960 dev_kfree_skb(skb); 961 if (ret) 962 wl1271_warning("cmd buld null data failed %d", ret); 963 964 return ret; 965 966} 967 968int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, 969 struct wl12xx_vif *wlvif) 970{ 971 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 972 struct sk_buff *skb = NULL; 973 int ret = -ENOMEM; 974 975 skb = ieee80211_nullfunc_get(wl->hw, vif); 976 if (!skb) 977 goto out; 978 979 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV, 980 skb->data, skb->len, 981 CMD_TEMPL_KLV_IDX_NULL_DATA, 982 wlvif->basic_rate); 983 984out: 985 dev_kfree_skb(skb); 986 if (ret) 987 wl1271_warning("cmd build klv null data failed %d", ret); 988 989 return ret; 990 991} 992 993int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif, 994 u16 aid) 995{ 996 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 997 struct sk_buff *skb; 998 int ret = 0; 999 1000 skb = ieee80211_pspoll_get(wl->hw, vif); 1001 if (!skb) 1002 goto out; 1003 1004 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1005 CMD_TEMPL_PS_POLL, skb->data, 1006 skb->len, 0, wlvif->basic_rate_set); 1007 1008out: 1009 dev_kfree_skb(skb); 1010 return ret; 1011} 1012 1013int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1014 u8 role_id, u8 band, 1015 const u8 *ssid, size_t ssid_len, 1016 const u8 *ie, size_t ie_len, bool sched_scan) 1017{ 1018 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1019 struct sk_buff *skb; 1020 int ret; 1021 u32 rate; 1022 u16 template_id_2_4 = CMD_TEMPL_CFG_PROBE_REQ_2_4; 1023 u16 template_id_5 = CMD_TEMPL_CFG_PROBE_REQ_5; 1024 1025 skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len, 1026 ie, ie_len); 1027 if (!skb) { 1028 ret = -ENOMEM; 1029 goto out; 1030 } 1031 1032 wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len); 1033 1034 if (!sched_scan && 1035 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) { 1036 template_id_2_4 = CMD_TEMPL_APP_PROBE_REQ_2_4; 1037 template_id_5 = CMD_TEMPL_APP_PROBE_REQ_5; 1038 } 1039 1040 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]); 1041 if (band == IEEE80211_BAND_2GHZ) 1042 ret = wl1271_cmd_template_set(wl, role_id, 1043 template_id_2_4, 1044 skb->data, skb->len, 0, rate); 1045 else 1046 ret = wl1271_cmd_template_set(wl, role_id, 1047 template_id_5, 1048 skb->data, skb->len, 0, rate); 1049 1050out: 1051 dev_kfree_skb(skb); 1052 return ret; 1053} 1054 1055struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl, 1056 struct wl12xx_vif *wlvif, 1057 struct sk_buff *skb) 1058{ 1059 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1060 int ret; 1061 u32 rate; 1062 1063 if (!skb) 1064 skb = ieee80211_ap_probereq_get(wl->hw, vif); 1065 if (!skb) 1066 goto out; 1067 1068 wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len); 1069 1070 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]); 1071 if (wlvif->band == IEEE80211_BAND_2GHZ) 1072 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1073 CMD_TEMPL_CFG_PROBE_REQ_2_4, 1074 skb->data, skb->len, 0, rate); 1075 else 1076 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1077 CMD_TEMPL_CFG_PROBE_REQ_5, 1078 skb->data, skb->len, 0, rate); 1079 1080 if (ret < 0) 1081 wl1271_error("Unable to set ap probe request template."); 1082 1083out: 1084 return skb; 1085} 1086 1087int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1088{ 1089 int ret, extra = 0; 1090 u16 fc; 1091 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1092 struct sk_buff *skb; 1093 struct wl12xx_arp_rsp_template *tmpl; 1094 struct ieee80211_hdr_3addr *hdr; 1095 struct arphdr *arp_hdr; 1096 1097 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) + 1098 WL1271_EXTRA_SPACE_MAX); 1099 if (!skb) { 1100 wl1271_error("failed to allocate buffer for arp rsp template"); 1101 return -ENOMEM; 1102 } 1103 1104 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX); 1105 1106 tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl)); 1107 memset(tmpl, 0, sizeof(*tmpl)); 1108 1109 /* llc layer */ 1110 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header)); 1111 tmpl->llc_type = cpu_to_be16(ETH_P_ARP); 1112 1113 /* arp header */ 1114 arp_hdr = &tmpl->arp_hdr; 1115 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER); 1116 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP); 1117 arp_hdr->ar_hln = ETH_ALEN; 1118 arp_hdr->ar_pln = 4; 1119 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY); 1120 1121 /* arp payload */ 1122 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN); 1123 tmpl->sender_ip = wlvif->ip_addr; 1124 1125 /* encryption space */ 1126 switch (wlvif->encryption_type) { 1127 case KEY_TKIP: 1128 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE) 1129 extra = WL1271_EXTRA_SPACE_TKIP; 1130 break; 1131 case KEY_AES: 1132 extra = WL1271_EXTRA_SPACE_AES; 1133 break; 1134 case KEY_NONE: 1135 case KEY_WEP: 1136 case KEY_GEM: 1137 extra = 0; 1138 break; 1139 default: 1140 wl1271_warning("Unknown encryption type: %d", 1141 wlvif->encryption_type); 1142 ret = -EINVAL; 1143 goto out; 1144 } 1145 1146 if (extra) { 1147 u8 *space = skb_push(skb, extra); 1148 memset(space, 0, extra); 1149 } 1150 1151 /* QoS header - BE */ 1152 if (wlvif->sta.qos) 1153 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16)); 1154 1155 /* mac80211 header */ 1156 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr)); 1157 memset(hdr, 0, sizeof(*hdr)); 1158 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS; 1159 if (wlvif->sta.qos) 1160 fc |= IEEE80211_STYPE_QOS_DATA; 1161 else 1162 fc |= IEEE80211_STYPE_DATA; 1163 if (wlvif->encryption_type != KEY_NONE) 1164 fc |= IEEE80211_FCTL_PROTECTED; 1165 1166 hdr->frame_control = cpu_to_le16(fc); 1167 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN); 1168 memcpy(hdr->addr2, vif->addr, ETH_ALEN); 1169 memset(hdr->addr3, 0xff, ETH_ALEN); 1170 1171 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP, 1172 skb->data, skb->len, 0, 1173 wlvif->basic_rate); 1174out: 1175 dev_kfree_skb(skb); 1176 return ret; 1177} 1178 1179int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif) 1180{ 1181 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 1182 struct ieee80211_qos_hdr template; 1183 1184 memset(&template, 0, sizeof(template)); 1185 1186 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN); 1187 memcpy(template.addr2, vif->addr, ETH_ALEN); 1188 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN); 1189 1190 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 1191 IEEE80211_STYPE_QOS_NULLFUNC | 1192 IEEE80211_FCTL_TODS); 1193 1194 /* FIXME: not sure what priority to use here */ 1195 template.qos_ctrl = cpu_to_le16(0); 1196 1197 return wl1271_cmd_template_set(wl, wlvif->role_id, 1198 CMD_TEMPL_QOS_NULL_DATA, &template, 1199 sizeof(template), 0, 1200 wlvif->basic_rate); 1201} 1202 1203int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid) 1204{ 1205 struct wl1271_cmd_set_keys *cmd; 1206 int ret = 0; 1207 1208 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id); 1209 1210 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1211 if (!cmd) { 1212 ret = -ENOMEM; 1213 goto out; 1214 } 1215 1216 cmd->hlid = hlid; 1217 cmd->key_id = id; 1218 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1219 cmd->key_action = cpu_to_le16(KEY_SET_ID); 1220 cmd->key_type = KEY_WEP; 1221 1222 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1223 if (ret < 0) { 1224 wl1271_warning("cmd set_default_wep_key failed: %d", ret); 1225 goto out; 1226 } 1227 1228out: 1229 kfree(cmd); 1230 1231 return ret; 1232} 1233 1234int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1235 u16 action, u8 id, u8 key_type, 1236 u8 key_size, const u8 *key, const u8 *addr, 1237 u32 tx_seq_32, u16 tx_seq_16) 1238{ 1239 struct wl1271_cmd_set_keys *cmd; 1240 int ret = 0; 1241 1242 /* hlid might have already been deleted */ 1243 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) 1244 return 0; 1245 1246 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1247 if (!cmd) { 1248 ret = -ENOMEM; 1249 goto out; 1250 } 1251 1252 cmd->hlid = wlvif->sta.hlid; 1253 1254 if (key_type == KEY_WEP) 1255 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1256 else if (is_broadcast_ether_addr(addr)) 1257 cmd->lid_key_type = BROADCAST_LID_TYPE; 1258 else 1259 cmd->lid_key_type = UNICAST_LID_TYPE; 1260 1261 cmd->key_action = cpu_to_le16(action); 1262 cmd->key_size = key_size; 1263 cmd->key_type = key_type; 1264 1265 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1266 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1267 1268 cmd->key_id = id; 1269 1270 if (key_type == KEY_TKIP) { 1271 /* 1272 * We get the key in the following form: 1273 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1274 * but the target is expecting: 1275 * TKIP - RX MIC - TX MIC 1276 */ 1277 memcpy(cmd->key, key, 16); 1278 memcpy(cmd->key + 16, key + 24, 8); 1279 memcpy(cmd->key + 24, key + 16, 8); 1280 1281 } else { 1282 memcpy(cmd->key, key, key_size); 1283 } 1284 1285 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd)); 1286 1287 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1288 if (ret < 0) { 1289 wl1271_warning("could not set keys"); 1290 goto out; 1291 } 1292 1293out: 1294 kfree(cmd); 1295 1296 return ret; 1297} 1298 1299/* 1300 * TODO: merge with sta/ibss into 1 set_key function. 1301 * note there are slight diffs 1302 */ 1303int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1304 u16 action, u8 id, u8 key_type, 1305 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32, 1306 u16 tx_seq_16) 1307{ 1308 struct wl1271_cmd_set_keys *cmd; 1309 int ret = 0; 1310 u8 lid_type; 1311 1312 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1313 if (!cmd) 1314 return -ENOMEM; 1315 1316 if (hlid == wlvif->ap.bcast_hlid) { 1317 if (key_type == KEY_WEP) 1318 lid_type = WEP_DEFAULT_LID_TYPE; 1319 else 1320 lid_type = BROADCAST_LID_TYPE; 1321 } else { 1322 lid_type = UNICAST_LID_TYPE; 1323 } 1324 1325 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d" 1326 " hlid: %d", (int)action, (int)id, (int)lid_type, 1327 (int)key_type, (int)hlid); 1328 1329 cmd->lid_key_type = lid_type; 1330 cmd->hlid = hlid; 1331 cmd->key_action = cpu_to_le16(action); 1332 cmd->key_size = key_size; 1333 cmd->key_type = key_type; 1334 cmd->key_id = id; 1335 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1336 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1337 1338 if (key_type == KEY_TKIP) { 1339 /* 1340 * We get the key in the following form: 1341 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1342 * but the target is expecting: 1343 * TKIP - RX MIC - TX MIC 1344 */ 1345 memcpy(cmd->key, key, 16); 1346 memcpy(cmd->key + 16, key + 24, 8); 1347 memcpy(cmd->key + 24, key + 16, 8); 1348 } else { 1349 memcpy(cmd->key, key, key_size); 1350 } 1351 1352 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd)); 1353 1354 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1355 if (ret < 0) { 1356 wl1271_warning("could not set ap keys"); 1357 goto out; 1358 } 1359 1360out: 1361 kfree(cmd); 1362 return ret; 1363} 1364 1365int wl12xx_cmd_set_peer_state(struct wl1271 *wl, u8 hlid) 1366{ 1367 struct wl12xx_cmd_set_peer_state *cmd; 1368 int ret = 0; 1369 1370 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid); 1371 1372 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1373 if (!cmd) { 1374 ret = -ENOMEM; 1375 goto out; 1376 } 1377 1378 cmd->hlid = hlid; 1379 cmd->state = WL1271_CMD_STA_STATE_CONNECTED; 1380 1381 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0); 1382 if (ret < 0) { 1383 wl1271_error("failed to send set peer state command"); 1384 goto out_free; 1385 } 1386 1387out_free: 1388 kfree(cmd); 1389 1390out: 1391 return ret; 1392} 1393 1394int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1395 struct ieee80211_sta *sta, u8 hlid) 1396{ 1397 struct wl12xx_cmd_add_peer *cmd; 1398 int i, ret; 1399 u32 sta_rates; 1400 1401 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid); 1402 1403 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1404 if (!cmd) { 1405 ret = -ENOMEM; 1406 goto out; 1407 } 1408 1409 memcpy(cmd->addr, sta->addr, ETH_ALEN); 1410 cmd->bss_index = WL1271_AP_BSS_INDEX; 1411 cmd->aid = sta->aid; 1412 cmd->hlid = hlid; 1413 cmd->sp_len = sta->max_sp; 1414 cmd->wmm = sta->wme ? 1 : 0; 1415 1416 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++) 1417 if (sta->wme && (sta->uapsd_queues & BIT(i))) 1418 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1419 WL1271_PSD_UPSD_TRIGGER; 1420 else 1421 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] = 1422 WL1271_PSD_LEGACY; 1423 1424 1425 sta_rates = sta->supp_rates[wlvif->band]; 1426 if (sta->ht_cap.ht_supported) 1427 sta_rates |= 1428 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) | 1429 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET); 1430 1431 cmd->supported_rates = 1432 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates, 1433 wlvif->band)); 1434 1435 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x", 1436 cmd->supported_rates, sta->uapsd_queues); 1437 1438 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0); 1439 if (ret < 0) { 1440 wl1271_error("failed to initiate cmd add peer"); 1441 goto out_free; 1442 } 1443 1444out_free: 1445 kfree(cmd); 1446 1447out: 1448 return ret; 1449} 1450 1451int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid) 1452{ 1453 struct wl12xx_cmd_remove_peer *cmd; 1454 int ret; 1455 bool timeout = false; 1456 1457 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid); 1458 1459 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1460 if (!cmd) { 1461 ret = -ENOMEM; 1462 goto out; 1463 } 1464 1465 cmd->hlid = hlid; 1466 /* We never send a deauth, mac80211 is in charge of this */ 1467 cmd->reason_opcode = 0; 1468 cmd->send_deauth_flag = 0; 1469 1470 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0); 1471 if (ret < 0) { 1472 wl1271_error("failed to initiate cmd remove peer"); 1473 goto out_free; 1474 } 1475 1476 ret = wl1271_cmd_wait_for_event_or_timeout(wl, 1477 PEER_REMOVE_COMPLETE_EVENT_ID, 1478 &timeout); 1479 /* 1480 * We are ok with a timeout here. The event is sometimes not sent 1481 * due to a firmware bug. In case of another error (like SDIO timeout) 1482 * queue a recovery. 1483 */ 1484 if (ret) 1485 wl12xx_queue_recovery_work(wl); 1486 1487out_free: 1488 kfree(cmd); 1489 1490out: 1491 return ret; 1492} 1493 1494int wl12xx_cmd_config_fwlog(struct wl1271 *wl) 1495{ 1496 struct wl12xx_cmd_config_fwlog *cmd; 1497 int ret = 0; 1498 1499 wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); 1500 1501 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1502 if (!cmd) { 1503 ret = -ENOMEM; 1504 goto out; 1505 } 1506 1507 cmd->logger_mode = wl->conf.fwlog.mode; 1508 cmd->log_severity = wl->conf.fwlog.severity; 1509 cmd->timestamp = wl->conf.fwlog.timestamp; 1510 cmd->output = wl->conf.fwlog.output; 1511 cmd->threshold = wl->conf.fwlog.threshold; 1512 1513 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); 1514 if (ret < 0) { 1515 wl1271_error("failed to send config firmware logger command"); 1516 goto out_free; 1517 } 1518 1519out_free: 1520 kfree(cmd); 1521 1522out: 1523 return ret; 1524} 1525 1526int wl12xx_cmd_start_fwlog(struct wl1271 *wl) 1527{ 1528 struct wl12xx_cmd_start_fwlog *cmd; 1529 int ret = 0; 1530 1531 wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); 1532 1533 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1534 if (!cmd) { 1535 ret = -ENOMEM; 1536 goto out; 1537 } 1538 1539 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); 1540 if (ret < 0) { 1541 wl1271_error("failed to send start firmware logger command"); 1542 goto out_free; 1543 } 1544 1545out_free: 1546 kfree(cmd); 1547 1548out: 1549 return ret; 1550} 1551 1552int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) 1553{ 1554 struct wl12xx_cmd_stop_fwlog *cmd; 1555 int ret = 0; 1556 1557 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); 1558 1559 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1560 if (!cmd) { 1561 ret = -ENOMEM; 1562 goto out; 1563 } 1564 1565 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); 1566 if (ret < 0) { 1567 wl1271_error("failed to send stop firmware logger command"); 1568 goto out_free; 1569 } 1570 1571out_free: 1572 kfree(cmd); 1573 1574out: 1575 return ret; 1576} 1577 1578static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1579 u8 role_id) 1580{ 1581 struct wl12xx_cmd_roc *cmd; 1582 int ret = 0; 1583 1584 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", wlvif->channel, role_id); 1585 1586 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID)) 1587 return -EINVAL; 1588 1589 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1590 if (!cmd) { 1591 ret = -ENOMEM; 1592 goto out; 1593 } 1594 1595 cmd->role_id = role_id; 1596 cmd->channel = wlvif->channel; 1597 switch (wlvif->band) { 1598 case IEEE80211_BAND_2GHZ: 1599 cmd->band = WLCORE_BAND_2_4GHZ; 1600 break; 1601 case IEEE80211_BAND_5GHZ: 1602 cmd->band = WLCORE_BAND_5GHZ; 1603 break; 1604 default: 1605 wl1271_error("roc - unknown band: %d", (int)wlvif->band); 1606 ret = -EINVAL; 1607 goto out_free; 1608 } 1609 1610 1611 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0); 1612 if (ret < 0) { 1613 wl1271_error("failed to send ROC command"); 1614 goto out_free; 1615 } 1616 1617out_free: 1618 kfree(cmd); 1619 1620out: 1621 return ret; 1622} 1623 1624static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id) 1625{ 1626 struct wl12xx_cmd_croc *cmd; 1627 int ret = 0; 1628 1629 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id); 1630 1631 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1632 if (!cmd) { 1633 ret = -ENOMEM; 1634 goto out; 1635 } 1636 cmd->role_id = role_id; 1637 1638 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd, 1639 sizeof(*cmd), 0); 1640 if (ret < 0) { 1641 wl1271_error("failed to send ROC command"); 1642 goto out_free; 1643 } 1644 1645out_free: 1646 kfree(cmd); 1647 1648out: 1649 return ret; 1650} 1651 1652int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id) 1653{ 1654 int ret = 0; 1655 bool is_first_roc; 1656 1657 if (WARN_ON(test_bit(role_id, wl->roc_map))) 1658 return 0; 1659 1660 is_first_roc = (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= 1661 WL12XX_MAX_ROLES); 1662 1663 ret = wl12xx_cmd_roc(wl, wlvif, role_id); 1664 if (ret < 0) 1665 goto out; 1666 1667 if (is_first_roc) { 1668 ret = wl1271_cmd_wait_for_event(wl, 1669 REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID); 1670 if (ret < 0) { 1671 wl1271_error("cmd roc event completion error"); 1672 goto out; 1673 } 1674 } 1675 1676 __set_bit(role_id, wl->roc_map); 1677out: 1678 return ret; 1679} 1680 1681int wl12xx_croc(struct wl1271 *wl, u8 role_id) 1682{ 1683 int ret = 0; 1684 1685 if (WARN_ON(!test_bit(role_id, wl->roc_map))) 1686 return 0; 1687 1688 ret = wl12xx_cmd_croc(wl, role_id); 1689 if (ret < 0) 1690 goto out; 1691 1692 __clear_bit(role_id, wl->roc_map); 1693 1694 /* 1695 * Rearm the tx watchdog when removing the last ROC. This prevents 1696 * recoveries due to just finished ROCs - when Tx hasn't yet had 1697 * a chance to get out. 1698 */ 1699 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) 1700 wl12xx_rearm_tx_watchdog_locked(wl); 1701out: 1702 return ret; 1703} 1704 1705int wl12xx_cmd_channel_switch(struct wl1271 *wl, 1706 struct wl12xx_vif *wlvif, 1707 struct ieee80211_channel_switch *ch_switch) 1708{ 1709 struct wl12xx_cmd_channel_switch *cmd; 1710 int ret; 1711 1712 wl1271_debug(DEBUG_ACX, "cmd channel switch"); 1713 1714 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1715 if (!cmd) { 1716 ret = -ENOMEM; 1717 goto out; 1718 } 1719 1720 cmd->role_id = wlvif->role_id; 1721 cmd->channel = ch_switch->channel->hw_value; 1722 cmd->switch_time = ch_switch->count; 1723 cmd->stop_tx = ch_switch->block_tx; 1724 1725 /* FIXME: control from mac80211 in the future */ 1726 cmd->post_switch_tx_disable = 0; /* Enable TX on the target channel */ 1727 1728 ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0); 1729 if (ret < 0) { 1730 wl1271_error("failed to send channel switch command"); 1731 goto out_free; 1732 } 1733 1734out_free: 1735 kfree(cmd); 1736 1737out: 1738 return ret; 1739} 1740 1741int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl) 1742{ 1743 struct wl12xx_cmd_stop_channel_switch *cmd; 1744 int ret; 1745 1746 wl1271_debug(DEBUG_ACX, "cmd stop channel switch"); 1747 1748 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1749 if (!cmd) { 1750 ret = -ENOMEM; 1751 goto out; 1752 } 1753 1754 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0); 1755 if (ret < 0) { 1756 wl1271_error("failed to stop channel switch command"); 1757 goto out_free; 1758 } 1759 1760out_free: 1761 kfree(cmd); 1762 1763out: 1764 return ret; 1765} 1766 1767/* start dev role and roc on its channel */ 1768int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1769{ 1770 int ret; 1771 1772 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1773 wlvif->bss_type == BSS_TYPE_IBSS))) 1774 return -EINVAL; 1775 1776 ret = wl12xx_cmd_role_start_dev(wl, wlvif); 1777 if (ret < 0) 1778 goto out; 1779 1780 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id); 1781 if (ret < 0) 1782 goto out_stop; 1783 1784 return 0; 1785 1786out_stop: 1787 wl12xx_cmd_role_stop_dev(wl, wlvif); 1788out: 1789 return ret; 1790} 1791 1792/* croc dev hlid, and stop the role */ 1793int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1794{ 1795 int ret; 1796 1797 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1798 wlvif->bss_type == BSS_TYPE_IBSS))) 1799 return -EINVAL; 1800 1801 /* flush all pending packets */ 1802 ret = wlcore_tx_work_locked(wl); 1803 if (ret < 0) 1804 goto out; 1805 1806 if (test_bit(wlvif->dev_role_id, wl->roc_map)) { 1807 ret = wl12xx_croc(wl, wlvif->dev_role_id); 1808 if (ret < 0) 1809 goto out; 1810 } 1811 1812 ret = wl12xx_cmd_role_stop_dev(wl, wlvif); 1813 if (ret < 0) 1814 goto out; 1815out: 1816 return ret; 1817} 1818