cmd.c revision 0230dfea09f7319658c86c07f5507092366dfc00
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 40#define WL1271_CMD_FAST_POLL_COUNT 50 41 42/* 43 * send command to firmware 44 * 45 * @wl: wl struct 46 * @id: command id 47 * @buf: buffer containing the command, must work with dma 48 * @len: length of the buffer 49 */ 50int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len, 51 size_t res_len) 52{ 53 struct wl1271_cmd_header *cmd; 54 unsigned long timeout; 55 u32 intr; 56 int ret = 0; 57 u16 status; 58 u16 poll_count = 0; 59 60 cmd = buf; 61 cmd->id = cpu_to_le16(id); 62 cmd->status = 0; 63 64 WARN_ON(len % 4 != 0); 65 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags)); 66 67 wl1271_write(wl, wl->cmd_box_addr, buf, len, false); 68 69 /* 70 * TODO: we just need this because one bit is in a different 71 * place. Is there any better way? 72 */ 73 wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len); 74 75 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT); 76 77 intr = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR); 78 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) { 79 if (time_after(jiffies, timeout)) { 80 wl1271_error("command complete timeout"); 81 ret = -ETIMEDOUT; 82 goto fail; 83 } 84 85 poll_count++; 86 if (poll_count < WL1271_CMD_FAST_POLL_COUNT) 87 udelay(10); 88 else 89 msleep(1); 90 91 intr = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR); 92 } 93 94 /* read back the status code of the command */ 95 if (res_len == 0) 96 res_len = sizeof(struct wl1271_cmd_header); 97 wl1271_read(wl, wl->cmd_box_addr, cmd, res_len, false); 98 99 status = le16_to_cpu(cmd->status); 100 if (status != CMD_STATUS_SUCCESS) { 101 wl1271_error("command execute failure %d", status); 102 ret = -EIO; 103 goto fail; 104 } 105 106 wlcore_write_reg(wl, REG_INTERRUPT_ACK, WL1271_ACX_INTR_CMD_COMPLETE); 107 return 0; 108 109fail: 110 WARN_ON(1); 111 wl12xx_queue_recovery_work(wl); 112 return ret; 113} 114 115/* 116 * Poll the mailbox event field until any of the bits in the mask is set or a 117 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs) 118 */ 119static int wl1271_cmd_wait_for_event_or_timeout(struct wl1271 *wl, u32 mask) 120{ 121 u32 *events_vector; 122 u32 event; 123 unsigned long timeout; 124 int ret = 0; 125 126 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA); 127 if (!events_vector) 128 return -ENOMEM; 129 130 timeout = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT); 131 132 do { 133 if (time_after(jiffies, timeout)) { 134 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d", 135 (int)mask); 136 ret = -ETIMEDOUT; 137 goto out; 138 } 139 140 msleep(1); 141 142 /* read from both event fields */ 143 wl1271_read(wl, wl->mbox_ptr[0], events_vector, 144 sizeof(*events_vector), false); 145 event = *events_vector & mask; 146 wl1271_read(wl, wl->mbox_ptr[1], events_vector, 147 sizeof(*events_vector), false); 148 event |= *events_vector & mask; 149 } while (!event); 150 151out: 152 kfree(events_vector); 153 return ret; 154} 155 156static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask) 157{ 158 int ret; 159 160 ret = wl1271_cmd_wait_for_event_or_timeout(wl, mask); 161 if (ret != 0) { 162 wl12xx_queue_recovery_work(wl); 163 return ret; 164 } 165 166 return 0; 167} 168 169int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type, 170 u8 *role_id) 171{ 172 struct wl12xx_cmd_role_enable *cmd; 173 int ret; 174 175 wl1271_debug(DEBUG_CMD, "cmd role enable"); 176 177 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID)) 178 return -EBUSY; 179 180 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 181 if (!cmd) { 182 ret = -ENOMEM; 183 goto out; 184 } 185 186 /* get role id */ 187 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES); 188 if (cmd->role_id >= WL12XX_MAX_ROLES) { 189 ret = -EBUSY; 190 goto out_free; 191 } 192 193 memcpy(cmd->mac_address, addr, ETH_ALEN); 194 cmd->role_type = role_type; 195 196 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0); 197 if (ret < 0) { 198 wl1271_error("failed to initiate cmd role enable"); 199 goto out_free; 200 } 201 202 __set_bit(cmd->role_id, wl->roles_map); 203 *role_id = cmd->role_id; 204 205out_free: 206 kfree(cmd); 207 208out: 209 return ret; 210} 211 212int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id) 213{ 214 struct wl12xx_cmd_role_disable *cmd; 215 int ret; 216 217 wl1271_debug(DEBUG_CMD, "cmd role disable"); 218 219 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID)) 220 return -ENOENT; 221 222 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 223 if (!cmd) { 224 ret = -ENOMEM; 225 goto out; 226 } 227 cmd->role_id = *role_id; 228 229 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0); 230 if (ret < 0) { 231 wl1271_error("failed to initiate cmd role disable"); 232 goto out_free; 233 } 234 235 __clear_bit(*role_id, wl->roles_map); 236 *role_id = WL12XX_INVALID_ROLE_ID; 237 238out_free: 239 kfree(cmd); 240 241out: 242 return ret; 243} 244 245int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 246{ 247 unsigned long flags; 248 u8 link = find_first_zero_bit(wl->links_map, WL12XX_MAX_LINKS); 249 if (link >= WL12XX_MAX_LINKS) 250 return -EBUSY; 251 252 /* these bits are used by op_tx */ 253 spin_lock_irqsave(&wl->wl_lock, flags); 254 __set_bit(link, wl->links_map); 255 __set_bit(link, wlvif->links_map); 256 spin_unlock_irqrestore(&wl->wl_lock, flags); 257 *hlid = link; 258 return 0; 259} 260 261void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid) 262{ 263 unsigned long flags; 264 265 if (*hlid == WL12XX_INVALID_LINK_ID) 266 return; 267 268 /* these bits are used by op_tx */ 269 spin_lock_irqsave(&wl->wl_lock, flags); 270 __clear_bit(*hlid, wl->links_map); 271 __clear_bit(*hlid, wlvif->links_map); 272 spin_unlock_irqrestore(&wl->wl_lock, flags); 273 274 /* 275 * At this point op_tx() will not add more packets to the queues. We 276 * can purge them. 277 */ 278 wl1271_tx_reset_link_queues(wl, *hlid); 279 280 *hlid = WL12XX_INVALID_LINK_ID; 281} 282 283static int wl12xx_get_new_session_id(struct wl1271 *wl, 284 struct wl12xx_vif *wlvif) 285{ 286 if (wlvif->session_counter >= SESSION_COUNTER_MAX) 287 wlvif->session_counter = 0; 288 289 wlvif->session_counter++; 290 291 return wlvif->session_counter; 292} 293 294static int wl12xx_cmd_role_start_dev(struct wl1271 *wl, 295 struct wl12xx_vif *wlvif) 296{ 297 struct wl12xx_cmd_role_start *cmd; 298 int ret; 299 300 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 301 if (!cmd) { 302 ret = -ENOMEM; 303 goto out; 304 } 305 306 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id); 307 308 cmd->role_id = wlvif->dev_role_id; 309 if (wlvif->band == IEEE80211_BAND_5GHZ) 310 cmd->band = WLCORE_BAND_5GHZ; 311 cmd->channel = wlvif->channel; 312 313 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) { 314 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid); 315 if (ret) 316 goto out_free; 317 } 318 cmd->device.hlid = wlvif->dev_hlid; 319 cmd->device.session = wl12xx_get_new_session_id(wl, wlvif); 320 321 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d", 322 cmd->role_id, cmd->device.hlid, cmd->device.session); 323 324 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 325 if (ret < 0) { 326 wl1271_error("failed to initiate cmd role enable"); 327 goto err_hlid; 328 } 329 330 goto out_free; 331 332err_hlid: 333 /* clear links on error */ 334 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 335 336out_free: 337 kfree(cmd); 338 339out: 340 return ret; 341} 342 343static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, 344 struct wl12xx_vif *wlvif) 345{ 346 struct wl12xx_cmd_role_stop *cmd; 347 int ret; 348 349 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID)) 350 return -EINVAL; 351 352 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 353 if (!cmd) { 354 ret = -ENOMEM; 355 goto out; 356 } 357 358 wl1271_debug(DEBUG_CMD, "cmd role stop dev"); 359 360 cmd->role_id = wlvif->dev_role_id; 361 cmd->disc_type = DISCONNECT_IMMEDIATE; 362 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 363 364 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 365 if (ret < 0) { 366 wl1271_error("failed to initiate cmd role stop"); 367 goto out_free; 368 } 369 370 ret = wl1271_cmd_wait_for_event(wl, ROLE_STOP_COMPLETE_EVENT_ID); 371 if (ret < 0) { 372 wl1271_error("cmd role stop dev event completion error"); 373 goto out_free; 374 } 375 376 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid); 377 378out_free: 379 kfree(cmd); 380 381out: 382 return ret; 383} 384 385int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 386{ 387 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 388 struct wl12xx_cmd_role_start *cmd; 389 int ret; 390 391 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 392 if (!cmd) { 393 ret = -ENOMEM; 394 goto out; 395 } 396 397 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id); 398 399 cmd->role_id = wlvif->role_id; 400 if (wlvif->band == IEEE80211_BAND_5GHZ) 401 cmd->band = WLCORE_BAND_5GHZ; 402 cmd->channel = wlvif->channel; 403 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 404 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int); 405 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY; 406 cmd->sta.ssid_len = wlvif->ssid_len; 407 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len); 408 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN); 409 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 410 411 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 412 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 413 if (ret) 414 goto out_free; 415 } 416 cmd->sta.hlid = wlvif->sta.hlid; 417 cmd->sta.session = wl12xx_get_new_session_id(wl, wlvif); 418 cmd->sta.remote_rates = cpu_to_le32(wlvif->rate_set); 419 420 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 421 "basic_rate_set: 0x%x, remote_rates: 0x%x", 422 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 423 wlvif->basic_rate_set, wlvif->rate_set); 424 425 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 426 if (ret < 0) { 427 wl1271_error("failed to initiate cmd role start sta"); 428 goto err_hlid; 429 } 430 431 goto out_free; 432 433err_hlid: 434 /* clear links on error. */ 435 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 436 437out_free: 438 kfree(cmd); 439 440out: 441 return ret; 442} 443 444/* use this function to stop ibss as well */ 445int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif) 446{ 447 struct wl12xx_cmd_role_stop *cmd; 448 int ret; 449 450 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)) 451 return -EINVAL; 452 453 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 454 if (!cmd) { 455 ret = -ENOMEM; 456 goto out; 457 } 458 459 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id); 460 461 cmd->role_id = wlvif->role_id; 462 cmd->disc_type = DISCONNECT_IMMEDIATE; 463 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED); 464 465 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 466 if (ret < 0) { 467 wl1271_error("failed to initiate cmd role stop sta"); 468 goto out_free; 469 } 470 471 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 472 473out_free: 474 kfree(cmd); 475 476out: 477 return ret; 478} 479 480int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 481{ 482 struct wl12xx_cmd_role_start *cmd; 483 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 484 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 485 int ret; 486 487 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id); 488 489 /* trying to use hidden SSID with an old hostapd version */ 490 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) { 491 wl1271_error("got a null SSID from beacon/bss"); 492 ret = -EINVAL; 493 goto out; 494 } 495 496 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 497 if (!cmd) { 498 ret = -ENOMEM; 499 goto out; 500 } 501 502 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid); 503 if (ret < 0) 504 goto out_free; 505 506 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid); 507 if (ret < 0) 508 goto out_free_global; 509 510 cmd->role_id = wlvif->role_id; 511 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period); 512 cmd->ap.bss_index = WL1271_AP_BSS_INDEX; 513 cmd->ap.global_hlid = wlvif->ap.global_hlid; 514 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid; 515 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 516 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int); 517 cmd->ap.dtim_interval = bss_conf->dtim_period; 518 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP; 519 /* FIXME: Change when adding DFS */ 520 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */ 521 cmd->channel = wlvif->channel; 522 523 if (!bss_conf->hidden_ssid) { 524 /* take the SSID from the beacon for backward compatibility */ 525 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC; 526 cmd->ap.ssid_len = wlvif->ssid_len; 527 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len); 528 } else { 529 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN; 530 cmd->ap.ssid_len = bss_conf->ssid_len; 531 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len); 532 } 533 534 cmd->ap.local_rates = cpu_to_le32(0xffffffff); 535 536 switch (wlvif->band) { 537 case IEEE80211_BAND_2GHZ: 538 cmd->band = WLCORE_BAND_2_4GHZ; 539 break; 540 case IEEE80211_BAND_5GHZ: 541 cmd->band = WLCORE_BAND_5GHZ; 542 break; 543 default: 544 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band); 545 cmd->band = WLCORE_BAND_2_4GHZ; 546 break; 547 } 548 549 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 550 if (ret < 0) { 551 wl1271_error("failed to initiate cmd role start ap"); 552 goto out_free_bcast; 553 } 554 555 goto out_free; 556 557out_free_bcast: 558 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 559 560out_free_global: 561 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 562 563out_free: 564 kfree(cmd); 565 566out: 567 return ret; 568} 569 570int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif) 571{ 572 struct wl12xx_cmd_role_stop *cmd; 573 int ret; 574 575 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 576 if (!cmd) { 577 ret = -ENOMEM; 578 goto out; 579 } 580 581 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id); 582 583 cmd->role_id = wlvif->role_id; 584 585 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0); 586 if (ret < 0) { 587 wl1271_error("failed to initiate cmd role stop ap"); 588 goto out_free; 589 } 590 591 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid); 592 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid); 593 594out_free: 595 kfree(cmd); 596 597out: 598 return ret; 599} 600 601int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif) 602{ 603 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 604 struct wl12xx_cmd_role_start *cmd; 605 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 606 int ret; 607 608 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 609 if (!cmd) { 610 ret = -ENOMEM; 611 goto out; 612 } 613 614 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id); 615 616 cmd->role_id = wlvif->role_id; 617 if (wlvif->band == IEEE80211_BAND_5GHZ) 618 cmd->band = WLCORE_BAND_5GHZ; 619 cmd->channel = wlvif->channel; 620 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set); 621 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int); 622 cmd->ibss.dtim_interval = bss_conf->dtim_period; 623 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY; 624 cmd->ibss.ssid_len = wlvif->ssid_len; 625 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len); 626 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN); 627 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set); 628 629 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) { 630 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid); 631 if (ret) 632 goto out_free; 633 } 634 cmd->ibss.hlid = wlvif->sta.hlid; 635 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set); 636 637 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d " 638 "basic_rate_set: 0x%x, remote_rates: 0x%x", 639 wlvif->role_id, cmd->sta.hlid, cmd->sta.session, 640 wlvif->basic_rate_set, wlvif->rate_set); 641 642 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM", 643 vif->bss_conf.bssid); 644 645 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0); 646 if (ret < 0) { 647 wl1271_error("failed to initiate cmd role enable"); 648 goto err_hlid; 649 } 650 651 goto out_free; 652 653err_hlid: 654 /* clear links on error. */ 655 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid); 656 657out_free: 658 kfree(cmd); 659 660out: 661 return ret; 662} 663 664 665/** 666 * send test command to firmware 667 * 668 * @wl: wl struct 669 * @buf: buffer containing the command, with all headers, must work with dma 670 * @len: length of the buffer 671 * @answer: is answer needed 672 */ 673int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer) 674{ 675 int ret; 676 size_t res_len = 0; 677 678 wl1271_debug(DEBUG_CMD, "cmd test"); 679 680 if (answer) 681 res_len = buf_len; 682 683 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len); 684 685 if (ret < 0) { 686 wl1271_warning("TEST command failed"); 687 return ret; 688 } 689 690 return ret; 691} 692EXPORT_SYMBOL_GPL(wl1271_cmd_test); 693 694/** 695 * read acx from firmware 696 * 697 * @wl: wl struct 698 * @id: acx id 699 * @buf: buffer for the response, including all headers, must work with dma 700 * @len: length of buf 701 */ 702int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len) 703{ 704 struct acx_header *acx = buf; 705 int ret; 706 707 wl1271_debug(DEBUG_CMD, "cmd interrogate"); 708 709 acx->id = cpu_to_le16(id); 710 711 /* payload length, does not include any headers */ 712 acx->len = cpu_to_le16(len - sizeof(*acx)); 713 714 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len); 715 if (ret < 0) 716 wl1271_error("INTERROGATE command failed"); 717 718 return ret; 719} 720 721/** 722 * write acx value to firmware 723 * 724 * @wl: wl struct 725 * @id: acx id 726 * @buf: buffer containing acx, including all headers, must work with dma 727 * @len: length of buf 728 */ 729int wl1271_cmd_configure(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 configure (%d)", id); 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_CONFIGURE, acx, len, 0); 742 if (ret < 0) { 743 wl1271_warning("CONFIGURE command NOK"); 744 return ret; 745 } 746 747 return 0; 748} 749EXPORT_SYMBOL_GPL(wl1271_cmd_configure); 750 751int wl1271_cmd_data_path(struct wl1271 *wl, bool enable) 752{ 753 struct cmd_enabledisable_path *cmd; 754 int ret; 755 u16 cmd_rx, cmd_tx; 756 757 wl1271_debug(DEBUG_CMD, "cmd data path"); 758 759 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 760 if (!cmd) { 761 ret = -ENOMEM; 762 goto out; 763 } 764 765 /* the channel here is only used for calibration, so hardcoded to 1 */ 766 cmd->channel = 1; 767 768 if (enable) { 769 cmd_rx = CMD_ENABLE_RX; 770 cmd_tx = CMD_ENABLE_TX; 771 } else { 772 cmd_rx = CMD_DISABLE_RX; 773 cmd_tx = CMD_DISABLE_TX; 774 } 775 776 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0); 777 if (ret < 0) { 778 wl1271_error("rx %s cmd for channel %d failed", 779 enable ? "start" : "stop", cmd->channel); 780 goto out; 781 } 782 783 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d", 784 enable ? "start" : "stop", cmd->channel); 785 786 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0); 787 if (ret < 0) { 788 wl1271_error("tx %s cmd for channel %d failed", 789 enable ? "start" : "stop", cmd->channel); 790 goto out; 791 } 792 793 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d", 794 enable ? "start" : "stop", cmd->channel); 795 796out: 797 kfree(cmd); 798 return ret; 799} 800 801int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif, 802 u8 ps_mode, u16 auto_ps_timeout) 803{ 804 struct wl1271_cmd_ps_params *ps_params = NULL; 805 int ret = 0; 806 807 wl1271_debug(DEBUG_CMD, "cmd set ps mode"); 808 809 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL); 810 if (!ps_params) { 811 ret = -ENOMEM; 812 goto out; 813 } 814 815 ps_params->role_id = wlvif->role_id; 816 ps_params->ps_mode = ps_mode; 817 ps_params->auto_ps_timeout = auto_ps_timeout; 818 819 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params, 820 sizeof(*ps_params), 0); 821 if (ret < 0) { 822 wl1271_error("cmd set_ps_mode failed"); 823 goto out; 824 } 825 826out: 827 kfree(ps_params); 828 return ret; 829} 830 831int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id, 832 u16 template_id, void *buf, size_t buf_len, 833 int index, u32 rates) 834{ 835 struct wl1271_cmd_template_set *cmd; 836 int ret = 0; 837 838 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)", 839 template_id, role_id); 840 841 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE); 842 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE); 843 844 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 845 if (!cmd) { 846 ret = -ENOMEM; 847 goto out; 848 } 849 850 /* during initialization wlvif is NULL */ 851 cmd->role_id = role_id; 852 cmd->len = cpu_to_le16(buf_len); 853 cmd->template_type = template_id; 854 cmd->enabled_rates = cpu_to_le32(rates); 855 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit; 856 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit; 857 cmd->index = index; 858 859 if (buf) 860 memcpy(cmd->template_data, buf, buf_len); 861 862 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0); 863 if (ret < 0) { 864 wl1271_warning("cmd set_template failed: %d", ret); 865 goto out_free; 866 } 867 868out_free: 869 kfree(cmd); 870 871out: 872 return ret; 873} 874 875int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) 876{ 877 struct sk_buff *skb = NULL; 878 int size; 879 void *ptr; 880 int ret = -ENOMEM; 881 882 883 if (wlvif->bss_type == BSS_TYPE_IBSS) { 884 size = sizeof(struct wl12xx_null_data_template); 885 ptr = NULL; 886 } else { 887 skb = ieee80211_nullfunc_get(wl->hw, 888 wl12xx_wlvif_to_vif(wlvif)); 889 if (!skb) 890 goto out; 891 size = skb->len; 892 ptr = skb->data; 893 } 894 895 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 896 CMD_TEMPL_NULL_DATA, ptr, size, 0, 897 wlvif->basic_rate); 898 899out: 900 dev_kfree_skb(skb); 901 if (ret) 902 wl1271_warning("cmd buld null data failed %d", ret); 903 904 return ret; 905 906} 907 908int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, 909 struct wl12xx_vif *wlvif) 910{ 911 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 912 struct sk_buff *skb = NULL; 913 int ret = -ENOMEM; 914 915 skb = ieee80211_nullfunc_get(wl->hw, vif); 916 if (!skb) 917 goto out; 918 919 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV, 920 skb->data, skb->len, 921 CMD_TEMPL_KLV_IDX_NULL_DATA, 922 wlvif->basic_rate); 923 924out: 925 dev_kfree_skb(skb); 926 if (ret) 927 wl1271_warning("cmd build klv null data failed %d", ret); 928 929 return ret; 930 931} 932 933int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif, 934 u16 aid) 935{ 936 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 937 struct sk_buff *skb; 938 int ret = 0; 939 940 skb = ieee80211_pspoll_get(wl->hw, vif); 941 if (!skb) 942 goto out; 943 944 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 945 CMD_TEMPL_PS_POLL, skb->data, 946 skb->len, 0, wlvif->basic_rate_set); 947 948out: 949 dev_kfree_skb(skb); 950 return ret; 951} 952 953int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif, 954 u8 role_id, u8 band, 955 const u8 *ssid, size_t ssid_len, 956 const u8 *ie, size_t ie_len) 957{ 958 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 959 struct sk_buff *skb; 960 int ret; 961 u32 rate; 962 963 skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len, 964 ie, ie_len); 965 if (!skb) { 966 ret = -ENOMEM; 967 goto out; 968 } 969 970 wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len); 971 972 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]); 973 if (band == IEEE80211_BAND_2GHZ) 974 ret = wl1271_cmd_template_set(wl, role_id, 975 CMD_TEMPL_CFG_PROBE_REQ_2_4, 976 skb->data, skb->len, 0, rate); 977 else 978 ret = wl1271_cmd_template_set(wl, role_id, 979 CMD_TEMPL_CFG_PROBE_REQ_5, 980 skb->data, skb->len, 0, rate); 981 982out: 983 dev_kfree_skb(skb); 984 return ret; 985} 986 987struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl, 988 struct wl12xx_vif *wlvif, 989 struct sk_buff *skb) 990{ 991 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 992 int ret; 993 u32 rate; 994 995 if (!skb) 996 skb = ieee80211_ap_probereq_get(wl->hw, vif); 997 if (!skb) 998 goto out; 999 1000 wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len); 1001 1002 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]); 1003 if (wlvif->band == IEEE80211_BAND_2GHZ) 1004 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1005 CMD_TEMPL_CFG_PROBE_REQ_2_4, 1006 skb->data, skb->len, 0, rate); 1007 else 1008 ret = wl1271_cmd_template_set(wl, wlvif->role_id, 1009 CMD_TEMPL_CFG_PROBE_REQ_5, 1010 skb->data, skb->len, 0, rate); 1011 1012 if (ret < 0) 1013 wl1271_error("Unable to set ap probe request template."); 1014 1015out: 1016 return skb; 1017} 1018 1019int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1020{ 1021 int ret, extra; 1022 u16 fc; 1023 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); 1024 struct sk_buff *skb; 1025 struct wl12xx_arp_rsp_template *tmpl; 1026 struct ieee80211_hdr_3addr *hdr; 1027 struct arphdr *arp_hdr; 1028 1029 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) + 1030 WL1271_EXTRA_SPACE_MAX); 1031 if (!skb) { 1032 wl1271_error("failed to allocate buffer for arp rsp template"); 1033 return -ENOMEM; 1034 } 1035 1036 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX); 1037 1038 tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl)); 1039 memset(tmpl, 0, sizeof(tmpl)); 1040 1041 /* llc layer */ 1042 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header)); 1043 tmpl->llc_type = cpu_to_be16(ETH_P_ARP); 1044 1045 /* arp header */ 1046 arp_hdr = &tmpl->arp_hdr; 1047 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER); 1048 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP); 1049 arp_hdr->ar_hln = ETH_ALEN; 1050 arp_hdr->ar_pln = 4; 1051 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY); 1052 1053 /* arp payload */ 1054 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN); 1055 tmpl->sender_ip = wlvif->ip_addr; 1056 1057 /* encryption space */ 1058 switch (wlvif->encryption_type) { 1059 case KEY_TKIP: 1060 extra = WL1271_EXTRA_SPACE_TKIP; 1061 break; 1062 case KEY_AES: 1063 extra = WL1271_EXTRA_SPACE_AES; 1064 break; 1065 case KEY_NONE: 1066 case KEY_WEP: 1067 case KEY_GEM: 1068 extra = 0; 1069 break; 1070 default: 1071 wl1271_warning("Unknown encryption type: %d", 1072 wlvif->encryption_type); 1073 ret = -EINVAL; 1074 goto out; 1075 } 1076 1077 if (extra) { 1078 u8 *space = skb_push(skb, extra); 1079 memset(space, 0, extra); 1080 } 1081 1082 /* QoS header - BE */ 1083 if (wlvif->sta.qos) 1084 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16)); 1085 1086 /* mac80211 header */ 1087 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr)); 1088 memset(hdr, 0, sizeof(hdr)); 1089 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS; 1090 if (wlvif->sta.qos) 1091 fc |= IEEE80211_STYPE_QOS_DATA; 1092 else 1093 fc |= IEEE80211_STYPE_DATA; 1094 if (wlvif->encryption_type != KEY_NONE) 1095 fc |= IEEE80211_FCTL_PROTECTED; 1096 1097 hdr->frame_control = cpu_to_le16(fc); 1098 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN); 1099 memcpy(hdr->addr2, vif->addr, ETH_ALEN); 1100 memset(hdr->addr3, 0xff, ETH_ALEN); 1101 1102 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP, 1103 skb->data, skb->len, 0, 1104 wlvif->basic_rate); 1105out: 1106 dev_kfree_skb(skb); 1107 return ret; 1108} 1109 1110int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif) 1111{ 1112 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); 1113 struct ieee80211_qos_hdr template; 1114 1115 memset(&template, 0, sizeof(template)); 1116 1117 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN); 1118 memcpy(template.addr2, vif->addr, ETH_ALEN); 1119 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN); 1120 1121 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | 1122 IEEE80211_STYPE_QOS_NULLFUNC | 1123 IEEE80211_FCTL_TODS); 1124 1125 /* FIXME: not sure what priority to use here */ 1126 template.qos_ctrl = cpu_to_le16(0); 1127 1128 return wl1271_cmd_template_set(wl, wlvif->role_id, 1129 CMD_TEMPL_QOS_NULL_DATA, &template, 1130 sizeof(template), 0, 1131 wlvif->basic_rate); 1132} 1133 1134int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid) 1135{ 1136 struct wl1271_cmd_set_keys *cmd; 1137 int ret = 0; 1138 1139 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id); 1140 1141 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1142 if (!cmd) { 1143 ret = -ENOMEM; 1144 goto out; 1145 } 1146 1147 cmd->hlid = hlid; 1148 cmd->key_id = id; 1149 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1150 cmd->key_action = cpu_to_le16(KEY_SET_ID); 1151 cmd->key_type = KEY_WEP; 1152 1153 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1154 if (ret < 0) { 1155 wl1271_warning("cmd set_default_wep_key failed: %d", ret); 1156 goto out; 1157 } 1158 1159out: 1160 kfree(cmd); 1161 1162 return ret; 1163} 1164 1165int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1166 u16 action, u8 id, u8 key_type, 1167 u8 key_size, const u8 *key, const u8 *addr, 1168 u32 tx_seq_32, u16 tx_seq_16) 1169{ 1170 struct wl1271_cmd_set_keys *cmd; 1171 int ret = 0; 1172 1173 /* hlid might have already been deleted */ 1174 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) 1175 return 0; 1176 1177 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1178 if (!cmd) { 1179 ret = -ENOMEM; 1180 goto out; 1181 } 1182 1183 cmd->hlid = wlvif->sta.hlid; 1184 1185 if (key_type == KEY_WEP) 1186 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE; 1187 else if (is_broadcast_ether_addr(addr)) 1188 cmd->lid_key_type = BROADCAST_LID_TYPE; 1189 else 1190 cmd->lid_key_type = UNICAST_LID_TYPE; 1191 1192 cmd->key_action = cpu_to_le16(action); 1193 cmd->key_size = key_size; 1194 cmd->key_type = key_type; 1195 1196 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1197 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1198 1199 cmd->key_id = id; 1200 1201 if (key_type == KEY_TKIP) { 1202 /* 1203 * We get the key in the following form: 1204 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1205 * but the target is expecting: 1206 * TKIP - RX MIC - TX MIC 1207 */ 1208 memcpy(cmd->key, key, 16); 1209 memcpy(cmd->key + 16, key + 24, 8); 1210 memcpy(cmd->key + 24, key + 16, 8); 1211 1212 } else { 1213 memcpy(cmd->key, key, key_size); 1214 } 1215 1216 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd)); 1217 1218 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1219 if (ret < 0) { 1220 wl1271_warning("could not set keys"); 1221 goto out; 1222 } 1223 1224out: 1225 kfree(cmd); 1226 1227 return ret; 1228} 1229 1230/* 1231 * TODO: merge with sta/ibss into 1 set_key function. 1232 * note there are slight diffs 1233 */ 1234int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1235 u16 action, u8 id, u8 key_type, 1236 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32, 1237 u16 tx_seq_16) 1238{ 1239 struct wl1271_cmd_set_keys *cmd; 1240 int ret = 0; 1241 u8 lid_type; 1242 1243 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1244 if (!cmd) 1245 return -ENOMEM; 1246 1247 if (hlid == wlvif->ap.bcast_hlid) { 1248 if (key_type == KEY_WEP) 1249 lid_type = WEP_DEFAULT_LID_TYPE; 1250 else 1251 lid_type = BROADCAST_LID_TYPE; 1252 } else { 1253 lid_type = UNICAST_LID_TYPE; 1254 } 1255 1256 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d" 1257 " hlid: %d", (int)action, (int)id, (int)lid_type, 1258 (int)key_type, (int)hlid); 1259 1260 cmd->lid_key_type = lid_type; 1261 cmd->hlid = hlid; 1262 cmd->key_action = cpu_to_le16(action); 1263 cmd->key_size = key_size; 1264 cmd->key_type = key_type; 1265 cmd->key_id = id; 1266 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16); 1267 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32); 1268 1269 if (key_type == KEY_TKIP) { 1270 /* 1271 * We get the key in the following form: 1272 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) 1273 * but the target is expecting: 1274 * TKIP - RX MIC - TX MIC 1275 */ 1276 memcpy(cmd->key, key, 16); 1277 memcpy(cmd->key + 16, key + 24, 8); 1278 memcpy(cmd->key + 24, key + 16, 8); 1279 } else { 1280 memcpy(cmd->key, key, key_size); 1281 } 1282 1283 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd)); 1284 1285 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0); 1286 if (ret < 0) { 1287 wl1271_warning("could not set ap keys"); 1288 goto out; 1289 } 1290 1291out: 1292 kfree(cmd); 1293 return ret; 1294} 1295 1296int wl12xx_cmd_set_peer_state(struct wl1271 *wl, u8 hlid) 1297{ 1298 struct wl12xx_cmd_set_peer_state *cmd; 1299 int ret = 0; 1300 1301 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid); 1302 1303 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1304 if (!cmd) { 1305 ret = -ENOMEM; 1306 goto out; 1307 } 1308 1309 cmd->hlid = hlid; 1310 cmd->state = WL1271_CMD_STA_STATE_CONNECTED; 1311 1312 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0); 1313 if (ret < 0) { 1314 wl1271_error("failed to send set peer state command"); 1315 goto out_free; 1316 } 1317 1318out_free: 1319 kfree(cmd); 1320 1321out: 1322 return ret; 1323} 1324 1325int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1326 struct ieee80211_sta *sta, u8 hlid) 1327{ 1328 struct wl12xx_cmd_add_peer *cmd; 1329 int i, ret; 1330 u32 sta_rates; 1331 1332 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid); 1333 1334 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1335 if (!cmd) { 1336 ret = -ENOMEM; 1337 goto out; 1338 } 1339 1340 memcpy(cmd->addr, sta->addr, ETH_ALEN); 1341 cmd->bss_index = WL1271_AP_BSS_INDEX; 1342 cmd->aid = sta->aid; 1343 cmd->hlid = hlid; 1344 cmd->sp_len = sta->max_sp; 1345 cmd->wmm = sta->wme ? 1 : 0; 1346 1347 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++) 1348 if (sta->wme && (sta->uapsd_queues & BIT(i))) 1349 cmd->psd_type[i] = WL1271_PSD_UPSD_TRIGGER; 1350 else 1351 cmd->psd_type[i] = WL1271_PSD_LEGACY; 1352 1353 sta_rates = sta->supp_rates[wlvif->band]; 1354 if (sta->ht_cap.ht_supported) 1355 sta_rates |= sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET; 1356 1357 cmd->supported_rates = 1358 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates, 1359 wlvif->band)); 1360 1361 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x", 1362 cmd->supported_rates, sta->uapsd_queues); 1363 1364 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0); 1365 if (ret < 0) { 1366 wl1271_error("failed to initiate cmd add peer"); 1367 goto out_free; 1368 } 1369 1370out_free: 1371 kfree(cmd); 1372 1373out: 1374 return ret; 1375} 1376 1377int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid) 1378{ 1379 struct wl12xx_cmd_remove_peer *cmd; 1380 int ret; 1381 1382 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid); 1383 1384 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1385 if (!cmd) { 1386 ret = -ENOMEM; 1387 goto out; 1388 } 1389 1390 cmd->hlid = hlid; 1391 /* We never send a deauth, mac80211 is in charge of this */ 1392 cmd->reason_opcode = 0; 1393 cmd->send_deauth_flag = 0; 1394 1395 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0); 1396 if (ret < 0) { 1397 wl1271_error("failed to initiate cmd remove peer"); 1398 goto out_free; 1399 } 1400 1401 /* 1402 * We are ok with a timeout here. The event is sometimes not sent 1403 * due to a firmware bug. 1404 */ 1405 wl1271_cmd_wait_for_event_or_timeout(wl, 1406 PEER_REMOVE_COMPLETE_EVENT_ID); 1407 1408out_free: 1409 kfree(cmd); 1410 1411out: 1412 return ret; 1413} 1414 1415int wl12xx_cmd_config_fwlog(struct wl1271 *wl) 1416{ 1417 struct wl12xx_cmd_config_fwlog *cmd; 1418 int ret = 0; 1419 1420 wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); 1421 1422 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1423 if (!cmd) { 1424 ret = -ENOMEM; 1425 goto out; 1426 } 1427 1428 cmd->logger_mode = wl->conf.fwlog.mode; 1429 cmd->log_severity = wl->conf.fwlog.severity; 1430 cmd->timestamp = wl->conf.fwlog.timestamp; 1431 cmd->output = wl->conf.fwlog.output; 1432 cmd->threshold = wl->conf.fwlog.threshold; 1433 1434 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); 1435 if (ret < 0) { 1436 wl1271_error("failed to send config firmware logger command"); 1437 goto out_free; 1438 } 1439 1440out_free: 1441 kfree(cmd); 1442 1443out: 1444 return ret; 1445} 1446 1447int wl12xx_cmd_start_fwlog(struct wl1271 *wl) 1448{ 1449 struct wl12xx_cmd_start_fwlog *cmd; 1450 int ret = 0; 1451 1452 wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); 1453 1454 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1455 if (!cmd) { 1456 ret = -ENOMEM; 1457 goto out; 1458 } 1459 1460 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); 1461 if (ret < 0) { 1462 wl1271_error("failed to send start firmware logger command"); 1463 goto out_free; 1464 } 1465 1466out_free: 1467 kfree(cmd); 1468 1469out: 1470 return ret; 1471} 1472 1473int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) 1474{ 1475 struct wl12xx_cmd_stop_fwlog *cmd; 1476 int ret = 0; 1477 1478 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); 1479 1480 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1481 if (!cmd) { 1482 ret = -ENOMEM; 1483 goto out; 1484 } 1485 1486 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); 1487 if (ret < 0) { 1488 wl1271_error("failed to send stop firmware logger command"); 1489 goto out_free; 1490 } 1491 1492out_free: 1493 kfree(cmd); 1494 1495out: 1496 return ret; 1497} 1498 1499static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, 1500 u8 role_id) 1501{ 1502 struct wl12xx_cmd_roc *cmd; 1503 int ret = 0; 1504 1505 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", wlvif->channel, role_id); 1506 1507 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID)) 1508 return -EINVAL; 1509 1510 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1511 if (!cmd) { 1512 ret = -ENOMEM; 1513 goto out; 1514 } 1515 1516 cmd->role_id = role_id; 1517 cmd->channel = wlvif->channel; 1518 switch (wlvif->band) { 1519 case IEEE80211_BAND_2GHZ: 1520 cmd->band = WLCORE_BAND_2_4GHZ; 1521 break; 1522 case IEEE80211_BAND_5GHZ: 1523 cmd->band = WLCORE_BAND_5GHZ; 1524 break; 1525 default: 1526 wl1271_error("roc - unknown band: %d", (int)wlvif->band); 1527 ret = -EINVAL; 1528 goto out_free; 1529 } 1530 1531 1532 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0); 1533 if (ret < 0) { 1534 wl1271_error("failed to send ROC command"); 1535 goto out_free; 1536 } 1537 1538out_free: 1539 kfree(cmd); 1540 1541out: 1542 return ret; 1543} 1544 1545static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id) 1546{ 1547 struct wl12xx_cmd_croc *cmd; 1548 int ret = 0; 1549 1550 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id); 1551 1552 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1553 if (!cmd) { 1554 ret = -ENOMEM; 1555 goto out; 1556 } 1557 cmd->role_id = role_id; 1558 1559 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd, 1560 sizeof(*cmd), 0); 1561 if (ret < 0) { 1562 wl1271_error("failed to send ROC command"); 1563 goto out_free; 1564 } 1565 1566out_free: 1567 kfree(cmd); 1568 1569out: 1570 return ret; 1571} 1572 1573int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id) 1574{ 1575 int ret = 0; 1576 1577 if (WARN_ON(test_bit(role_id, wl->roc_map))) 1578 return 0; 1579 1580 ret = wl12xx_cmd_roc(wl, wlvif, role_id); 1581 if (ret < 0) 1582 goto out; 1583 1584 ret = wl1271_cmd_wait_for_event(wl, 1585 REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID); 1586 if (ret < 0) { 1587 wl1271_error("cmd roc event completion error"); 1588 goto out; 1589 } 1590 1591 __set_bit(role_id, wl->roc_map); 1592out: 1593 return ret; 1594} 1595 1596int wl12xx_croc(struct wl1271 *wl, u8 role_id) 1597{ 1598 int ret = 0; 1599 1600 if (WARN_ON(!test_bit(role_id, wl->roc_map))) 1601 return 0; 1602 1603 ret = wl12xx_cmd_croc(wl, role_id); 1604 if (ret < 0) 1605 goto out; 1606 1607 __clear_bit(role_id, wl->roc_map); 1608 1609 /* 1610 * Rearm the tx watchdog when removing the last ROC. This prevents 1611 * recoveries due to just finished ROCs - when Tx hasn't yet had 1612 * a chance to get out. 1613 */ 1614 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) 1615 wl12xx_rearm_tx_watchdog_locked(wl); 1616out: 1617 return ret; 1618} 1619 1620int wl12xx_cmd_channel_switch(struct wl1271 *wl, 1621 struct wl12xx_vif *wlvif, 1622 struct ieee80211_channel_switch *ch_switch) 1623{ 1624 struct wl12xx_cmd_channel_switch *cmd; 1625 int ret; 1626 1627 wl1271_debug(DEBUG_ACX, "cmd channel switch"); 1628 1629 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1630 if (!cmd) { 1631 ret = -ENOMEM; 1632 goto out; 1633 } 1634 1635 cmd->role_id = wlvif->role_id; 1636 cmd->channel = ch_switch->channel->hw_value; 1637 cmd->switch_time = ch_switch->count; 1638 cmd->stop_tx = ch_switch->block_tx; 1639 1640 /* FIXME: control from mac80211 in the future */ 1641 cmd->post_switch_tx_disable = 0; /* Enable TX on the target channel */ 1642 1643 ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0); 1644 if (ret < 0) { 1645 wl1271_error("failed to send channel switch command"); 1646 goto out_free; 1647 } 1648 1649out_free: 1650 kfree(cmd); 1651 1652out: 1653 return ret; 1654} 1655 1656int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl) 1657{ 1658 struct wl12xx_cmd_stop_channel_switch *cmd; 1659 int ret; 1660 1661 wl1271_debug(DEBUG_ACX, "cmd stop channel switch"); 1662 1663 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 1664 if (!cmd) { 1665 ret = -ENOMEM; 1666 goto out; 1667 } 1668 1669 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0); 1670 if (ret < 0) { 1671 wl1271_error("failed to stop channel switch command"); 1672 goto out_free; 1673 } 1674 1675out_free: 1676 kfree(cmd); 1677 1678out: 1679 return ret; 1680} 1681 1682/* start dev role and roc on its channel */ 1683int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1684{ 1685 int ret; 1686 1687 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1688 wlvif->bss_type == BSS_TYPE_IBSS))) 1689 return -EINVAL; 1690 1691 ret = wl12xx_cmd_role_start_dev(wl, wlvif); 1692 if (ret < 0) 1693 goto out; 1694 1695 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id); 1696 if (ret < 0) 1697 goto out_stop; 1698 1699 return 0; 1700 1701out_stop: 1702 wl12xx_cmd_role_stop_dev(wl, wlvif); 1703out: 1704 return ret; 1705} 1706 1707/* croc dev hlid, and stop the role */ 1708int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif) 1709{ 1710 int ret; 1711 1712 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS || 1713 wlvif->bss_type == BSS_TYPE_IBSS))) 1714 return -EINVAL; 1715 1716 /* flush all pending packets */ 1717 wl1271_tx_work_locked(wl); 1718 1719 if (test_bit(wlvif->dev_role_id, wl->roc_map)) { 1720 ret = wl12xx_croc(wl, wlvif->dev_role_id); 1721 if (ret < 0) 1722 goto out; 1723 } 1724 1725 ret = wl12xx_cmd_role_stop_dev(wl, wlvif); 1726 if (ret < 0) 1727 goto out; 1728out: 1729 return ret; 1730} 1731