drivers/net/wireless/ti/wlcore/cmd.c

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