SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/net/wireless/wl12xx/wl1271_cmd.c

   1 /*
   2  * This file is part of wl1271
   3  *
   4  * Copyright (C) 2009 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/crc7.h>
  27 #include <linux/spi/spi.h>
  28 #include <linux/etherdevice.h>
  29
  30 #include "wl1271.h"
  31 #include "wl1271_reg.h"
  32 #include "wl1271_spi.h"
  33 #include "wl1271_acx.h"
  34 #include "wl12xx_80211.h"
  35 #include "wl1271_cmd.h"
  36
  37 /*
  38  * send command to firmware
  39  *
  40  * @wl: wl struct
  41  * @id: command id
  42  * @buf: buffer containing the command, must work with dma
  43  * @len: length of the buffer
  44  */
  45 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len)
  46 {
  47         struct wl1271_cmd_header *cmd;
  48         unsigned long timeout;
  49         u32 intr;
  50         int ret = 0;
  51
  52         cmd = buf;
  53         cmd->id = id;
  54         cmd->status = 0;
  55
  56         WARN_ON(len % 4 != 0);
  57
  58         wl1271_spi_mem_write(wl, wl->cmd_box_addr, buf, len);
  59
  60         wl1271_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
  61
  62         timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
  63
  64         intr = wl1271_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  65         while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
  66                 if (time_after(jiffies, timeout)) {
  67                         wl1271_error("command complete timeout");
  68                         ret = -ETIMEDOUT;
  69                         goto out;
  70                 }
  71
  72                 msleep(1);
  73
  74                 intr = wl1271_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  75         }
  76
  77         wl1271_reg_write32(wl, ACX_REG_INTERRUPT_ACK,
  78                            WL1271_ACX_INTR_CMD_COMPLETE);
  79
  80 out:
  81         return ret;
  82 }
  83
  84 int wl1271_cmd_cal_channel_tune(struct wl1271 *wl)
  85 {
  86         struct wl1271_cmd_cal_channel_tune *cmd;
  87         int ret = 0;
  88
  89         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
  90         if (!cmd)
  91                 return -ENOMEM;
  92
  93         cmd->test.id = TEST_CMD_CHANNEL_TUNE;
  94
  95         cmd->band = WL1271_CHANNEL_TUNE_BAND_2_4;
  96         /* set up any channel, 7 is in the middle of the range */
  97         cmd->channel = 7;
  98
  99         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
 100         if (ret < 0)
 101                 wl1271_warning("TEST_CMD_CHANNEL_TUNE failed");
 102
 103         kfree(cmd);
 104         return ret;
 105 }
 106
 107 int wl1271_cmd_cal_update_ref_point(struct wl1271 *wl)
 108 {
 109         struct wl1271_cmd_cal_update_ref_point *cmd;
 110         int ret = 0;
 111
 112         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 113         if (!cmd)
 114                 return -ENOMEM;
 115
 116         cmd->test.id = TEST_CMD_UPDATE_PD_REFERENCE_POINT;
 117
 118         /* FIXME: still waiting for the correct values */
 119         cmd->ref_power    = 0;
 120         cmd->ref_detector = 0;
 121
 122         cmd->sub_band     = WL1271_PD_REFERENCE_POINT_BAND_B_G;
 123
 124         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
 125         if (ret < 0)
 126                 wl1271_warning("TEST_CMD_UPDATE_PD_REFERENCE_POINT failed");
 127
 128         kfree(cmd);
 129         return ret;
 130 }
 131
 132 int wl1271_cmd_cal_p2g(struct wl1271 *wl)
 133 {
 134         struct wl1271_cmd_cal_p2g *cmd;
 135         int ret = 0;
 136
 137         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 138         if (!cmd)
 139                 return -ENOMEM;
 140
 141         cmd->test.id = TEST_CMD_P2G_CAL;
 142
 143         cmd->sub_band_mask = WL1271_CAL_P2G_BAND_B_G;
 144
 145         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
 146         if (ret < 0)
 147                 wl1271_warning("TEST_CMD_P2G_CAL failed");
 148
 149         kfree(cmd);
 150         return ret;
 151 }
 152
 153 int wl1271_cmd_cal(struct wl1271 *wl)
 154 {
 155         /*
 156          * FIXME: we must make sure that we're not sleeping when calibration
 157          * is done
 158          */
 159         int ret;
 160
 161         wl1271_notice("performing tx calibration");
 162
 163         ret = wl1271_cmd_cal_channel_tune(wl);
 164         if (ret < 0)
 165                 return ret;
 166
 167         ret = wl1271_cmd_cal_update_ref_point(wl);
 168         if (ret < 0)
 169                 return ret;
 170
 171         ret = wl1271_cmd_cal_p2g(wl);
 172         if (ret < 0)
 173                 return ret;
 174
 175         return ret;
 176 }
 177
 178 int wl1271_cmd_join(struct wl1271 *wl, u8 bss_type, u8 dtim_interval,
 179                     u16 beacon_interval, u8 wait)
 180 {
 181         static bool do_cal = true;
 182         unsigned long timeout;
 183         struct wl1271_cmd_join *join;
 184         int ret, i;
 185         u8 *bssid;
 186
 187         /* FIXME: remove when we get calibration from the factory */
 188         if (do_cal) {
 189                 ret = wl1271_cmd_cal(wl);
 190                 if (ret < 0)
 191                         wl1271_warning("couldn't calibrate");
 192                 else
 193                         do_cal = false;
 194         }
 195
 196
 197         join = kzalloc(sizeof(*join), GFP_KERNEL);
 198         if (!join) {
 199                 ret = -ENOMEM;
 200                 goto out;
 201         }
 202
 203         wl1271_debug(DEBUG_CMD, "cmd join");
 204
 205         /* Reverse order BSSID */
 206         bssid = (u8 *) &join->bssid_lsb;
 207         for (i = 0; i < ETH_ALEN; i++)
 208                 bssid[i] = wl->bssid[ETH_ALEN - i - 1];
 209
 210         join->rx_config_options = wl->rx_config;
 211         join->rx_filter_options = wl->rx_filter;
 212
 213         join->basic_rate_set = RATE_MASK_1MBPS | RATE_MASK_2MBPS |
 214                 RATE_MASK_5_5MBPS | RATE_MASK_11MBPS;
 215
 216         join->beacon_interval = beacon_interval;
 217         join->dtim_interval = dtim_interval;
 218         join->bss_type = bss_type;
 219         join->channel = wl->channel;
 220         join->ssid_len = wl->ssid_len;
 221         memcpy(join->ssid, wl->ssid, wl->ssid_len);
 222         join->ctrl = WL1271_JOIN_CMD_CTRL_TX_FLUSH;
 223
 224         /* increment the session counter */
 225         wl->session_counter++;
 226         if (wl->session_counter >= SESSION_COUNTER_MAX)
 227                 wl->session_counter = 0;
 228
 229         join->ctrl |= wl->session_counter << WL1271_JOIN_CMD_TX_SESSION_OFFSET;
 230
 231         /* reset TX security counters */
 232         wl->tx_security_last_seq = 0;
 233         wl->tx_security_seq_16 = 0;
 234         wl->tx_security_seq_32 = 0;
 235
 236         ret = wl1271_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join));
 237         if (ret < 0) {
 238                 wl1271_error("failed to initiate cmd join");
 239                 goto out_free;
 240         }
 241
 242         timeout = msecs_to_jiffies(JOIN_TIMEOUT);
 243
 244         /*
 245          * ugly hack: we should wait for JOIN_EVENT_COMPLETE_ID but to
 246          * simplify locking we just sleep instead, for now
 247          */
 248         if (wait)
 249                 msleep(10);
 250
 251 out_free:
 252         kfree(join);
 253
 254 out:
 255         return ret;
 256 }
 257
 258 /**
 259  * send test command to firmware
 260  *
 261  * @wl: wl struct
 262  * @buf: buffer containing the command, with all headers, must work with dma
 263  * @len: length of the buffer
 264  * @answer: is answer needed
 265  */
 266 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
 267 {
 268         int ret;
 269
 270         wl1271_debug(DEBUG_CMD, "cmd test");
 271
 272         ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len);
 273
 274         if (ret < 0) {
 275                 wl1271_warning("TEST command failed");
 276                 return ret;
 277         }
 278
 279         if (answer) {
 280                 struct wl1271_command *cmd_answer;
 281
 282                 /*
 283                  * The test command got in, we can read the answer.
 284                  * The answer would be a wl1271_command, where the
 285                  * parameter array contains the actual answer.
 286                  */
 287                 wl1271_spi_mem_read(wl, wl->cmd_box_addr, buf, buf_len);
 288
 289                 cmd_answer = buf;
 290
 291                 if (cmd_answer->header.status != CMD_STATUS_SUCCESS)
 292                         wl1271_error("TEST command answer error: %d",
 293                                      cmd_answer->header.status);
 294         }
 295
 296         return 0;
 297 }
 298
 299 /**
 300  * read acx from firmware
 301  *
 302  * @wl: wl struct
 303  * @id: acx id
 304  * @buf: buffer for the response, including all headers, must work with dma
 305  * @len: lenght of buf
 306  */
 307 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
 308 {
 309         struct acx_header *acx = buf;
 310         int ret;
 311
 312         wl1271_debug(DEBUG_CMD, "cmd interrogate");
 313
 314         acx->id = id;
 315
 316         /* payload length, does not include any headers */
 317         acx->len = len - sizeof(*acx);
 318
 319         ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx));
 320         if (ret < 0) {
 321                 wl1271_error("INTERROGATE command failed");
 322                 goto out;
 323         }
 324
 325         /* the interrogate command got in, we can read the answer */
 326         wl1271_spi_mem_read(wl, wl->cmd_box_addr, buf, len);
 327
 328         acx = buf;
 329         if (acx->cmd.status != CMD_STATUS_SUCCESS)
 330                 wl1271_error("INTERROGATE command error: %d",
 331                              acx->cmd.status);
 332
 333 out:
 334         return ret;
 335 }
 336
 337 /**
 338  * write acx value to firmware
 339  *
 340  * @wl: wl struct
 341  * @id: acx id
 342  * @buf: buffer containing acx, including all headers, must work with dma
 343  * @len: length of buf
 344  */
 345 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
 346 {
 347         struct acx_header *acx = buf;
 348         int ret;
 349
 350         wl1271_debug(DEBUG_CMD, "cmd configure");
 351
 352         acx->id = id;
 353
 354         /* payload length, does not include any headers */
 355         acx->len = len - sizeof(*acx);
 356
 357         ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len);
 358         if (ret < 0) {
 359                 wl1271_warning("CONFIGURE command NOK");
 360                 return ret;
 361         }
 362
 363         return 0;
 364 }
 365
 366 int wl1271_cmd_data_path(struct wl1271 *wl, u8 channel, bool enable)
 367 {
 368         struct cmd_enabledisable_path *cmd;
 369         int ret;
 370         u16 cmd_rx, cmd_tx;
 371
 372         wl1271_debug(DEBUG_CMD, "cmd data path");
 373
 374         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 375         if (!cmd) {
 376                 ret = -ENOMEM;
 377                 goto out;
 378         }
 379
 380         cmd->channel = channel;
 381
 382         if (enable) {
 383                 cmd_rx = CMD_ENABLE_RX;
 384                 cmd_tx = CMD_ENABLE_TX;
 385         } else {
 386                 cmd_rx = CMD_DISABLE_RX;
 387                 cmd_tx = CMD_DISABLE_TX;
 388         }
 389
 390         ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd));
 391         if (ret < 0) {
 392                 wl1271_error("rx %s cmd for channel %d failed",
 393                              enable ? "start" : "stop", channel);
 394                 goto out;
 395         }
 396
 397         wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
 398                      enable ? "start" : "stop", channel);
 399
 400         ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd));
 401         if (ret < 0) {
 402                 wl1271_error("tx %s cmd for channel %d failed",
 403                              enable ? "start" : "stop", channel);
 404                 return ret;
 405         }
 406
 407         wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
 408                      enable ? "start" : "stop", channel);
 409
 410 out:
 411         kfree(cmd);
 412         return ret;
 413 }
 414
 415 int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode)
 416 {
 417         struct wl1271_cmd_ps_params *ps_params = NULL;
 418         int ret = 0;
 419
 420         /* FIXME: this should be in ps.c */
 421         ret = wl1271_acx_wake_up_conditions(wl, WAKE_UP_EVENT_DTIM_BITMAP,
 422                                             wl->listen_int);
 423         if (ret < 0) {
 424                 wl1271_error("couldn't set wake up conditions");
 425                 goto out;
 426         }
 427
 428         wl1271_debug(DEBUG_CMD, "cmd set ps mode");
 429
 430         ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
 431         if (!ps_params) {
 432                 ret = -ENOMEM;
 433                 goto out;
 434         }
 435
 436         ps_params->ps_mode = ps_mode;
 437         ps_params->send_null_data = 1;
 438         ps_params->retries = 5;
 439         ps_params->hang_over_period = 128;
 440         ps_params->null_data_rate = 1; /* 1 Mbps */
 441
 442         ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
 443                               sizeof(*ps_params));
 444         if (ret < 0) {
 445                 wl1271_error("cmd set_ps_mode failed");
 446                 goto out;
 447         }
 448
 449 out:
 450         kfree(ps_params);
 451         return ret;
 452 }
 453
 454 int wl1271_cmd_read_memory(struct wl1271 *wl, u32 addr, void *answer,
 455                            size_t len)
 456 {
 457         struct cmd_read_write_memory *cmd;
 458         int ret = 0;
 459
 460         wl1271_debug(DEBUG_CMD, "cmd read memory");
 461
 462         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 463         if (!cmd) {
 464                 ret = -ENOMEM;
 465                 goto out;
 466         }
 467
 468         WARN_ON(len > MAX_READ_SIZE);
 469         len = min_t(size_t, len, MAX_READ_SIZE);
 470
 471         cmd->addr = addr;
 472         cmd->size = len;
 473
 474         ret = wl1271_cmd_send(wl, CMD_READ_MEMORY, cmd, sizeof(*cmd));
 475         if (ret < 0) {
 476                 wl1271_error("read memory command failed: %d", ret);
 477                 goto out;
 478         }
 479
 480         /* the read command got in, we can now read the answer */
 481         wl1271_spi_mem_read(wl, wl->cmd_box_addr, cmd, sizeof(*cmd));
 482
 483         if (cmd->header.status != CMD_STATUS_SUCCESS)
 484                 wl1271_error("error in read command result: %d",
 485                              cmd->header.status);
 486
 487         memcpy(answer, cmd->value, len);
 488
 489 out:
 490         kfree(cmd);
 491         return ret;
 492 }
 493
 494 int wl1271_cmd_scan(struct wl1271 *wl, u8 *ssid, size_t len,
 495                     u8 active_scan, u8 high_prio, u8 num_channels,
 496                     u8 probe_requests)
 497 {
 498
 499         struct wl1271_cmd_trigger_scan_to *trigger = NULL;
 500         struct wl1271_cmd_scan *params = NULL;
 501         int i, ret;
 502         u16 scan_options = 0;
 503
 504         if (wl->scanning)
 505                 return -EINVAL;
 506
 507         params = kzalloc(sizeof(*params), GFP_KERNEL);
 508         if (!params)
 509                 return -ENOMEM;
 510
 511         params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
 512         params->params.rx_filter_options =
 513                 cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
 514
 515         if (!active_scan)
 516                 scan_options |= WL1271_SCAN_OPT_PASSIVE;
 517         if (high_prio)
 518                 scan_options |= WL1271_SCAN_OPT_PRIORITY_HIGH;
 519         params->params.scan_options = scan_options;
 520
 521         params->params.num_channels = num_channels;
 522         params->params.num_probe_requests = probe_requests;
 523         params->params.tx_rate = cpu_to_le32(RATE_MASK_2MBPS);
 524         params->params.tid_trigger = 0;
 525         params->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
 526
 527         for (i = 0; i < num_channels; i++) {
 528                 params->channels[i].min_duration =
 529                         cpu_to_le32(WL1271_SCAN_CHAN_MIN_DURATION);
 530                 params->channels[i].max_duration =
 531                         cpu_to_le32(WL1271_SCAN_CHAN_MAX_DURATION);
 532                 memset(&params->channels[i].bssid_lsb, 0xff, 4);
 533                 memset(&params->channels[i].bssid_msb, 0xff, 2);
 534                 params->channels[i].early_termination = 0;
 535                 params->channels[i].tx_power_att = WL1271_SCAN_CURRENT_TX_PWR;
 536                 params->channels[i].channel = i + 1;
 537         }
 538
 539         if (len && ssid) {
 540                 params->params.ssid_len = len;
 541                 memcpy(params->params.ssid, ssid, len);
 542         }
 543
 544         ret = wl1271_cmd_build_probe_req(wl, ssid, len);
 545         if (ret < 0) {
 546                 wl1271_error("PROBE request template failed");
 547                 goto out;
 548         }
 549
 550         trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
 551         if (!trigger) {
 552                 ret = -ENOMEM;
 553                 goto out;
 554         }
 555
 556         /* disable the timeout */
 557         trigger->timeout = 0;
 558
 559         ret = wl1271_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger,
 560                               sizeof(*trigger));
 561         if (ret < 0) {
 562                 wl1271_error("trigger scan to failed for hw scan");
 563                 goto out;
 564         }
 565
 566         wl1271_dump(DEBUG_SCAN, "SCAN: ", params, sizeof(*params));
 567
 568         wl->scanning = true;
 569
 570         ret = wl1271_cmd_send(wl, CMD_SCAN, params, sizeof(*params));
 571         if (ret < 0) {
 572                 wl1271_error("SCAN failed");
 573                 goto out;
 574         }
 575
 576         wl1271_spi_mem_read(wl, wl->cmd_box_addr, params, sizeof(*params));
 577
 578         if (params->header.status != CMD_STATUS_SUCCESS) {
 579                 wl1271_error("Scan command error: %d",
 580                              params->header.status);
 581                 wl->scanning = false;
 582                 ret = -EIO;
 583                 goto out;
 584         }
 585
 586 out:
 587         kfree(params);
 588         return ret;
 589 }
 590
 591 int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
 592                             void *buf, size_t buf_len)
 593 {
 594         struct wl1271_cmd_template_set *cmd;
 595         int ret = 0;
 596
 597         wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
 598
 599         WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
 600         buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
 601
 602         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 603         if (!cmd) {
 604                 ret = -ENOMEM;
 605                 goto out;
 606         }
 607
 608         cmd->len = cpu_to_le16(buf_len);
 609         cmd->template_type = template_id;
 610         cmd->enabled_rates = ACX_RATE_MASK_UNSPECIFIED;
 611         cmd->short_retry_limit = ACX_RATE_RETRY_LIMIT;
 612         cmd->long_retry_limit = ACX_RATE_RETRY_LIMIT;
 613
 614         if (buf)
 615                 memcpy(cmd->template_data, buf, buf_len);
 616
 617         ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd));
 618         if (ret < 0) {
 619                 wl1271_warning("cmd set_template failed: %d", ret);
 620                 goto out_free;
 621         }
 622
 623 out_free:
 624         kfree(cmd);
 625
 626 out:
 627         return ret;
 628 }
 629
 630 static int wl1271_build_basic_rates(char *rates)
 631 {
 632         u8 index = 0;
 633
 634         rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
 635         rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
 636         rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
 637         rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
 638
 639         return index;
 640 }
 641
 642 static int wl1271_build_extended_rates(char *rates)
 643 {
 644         u8 index = 0;
 645
 646         rates[index++] = IEEE80211_OFDM_RATE_6MB;
 647         rates[index++] = IEEE80211_OFDM_RATE_9MB;
 648         rates[index++] = IEEE80211_OFDM_RATE_12MB;
 649         rates[index++] = IEEE80211_OFDM_RATE_18MB;
 650         rates[index++] = IEEE80211_OFDM_RATE_24MB;
 651         rates[index++] = IEEE80211_OFDM_RATE_36MB;
 652         rates[index++] = IEEE80211_OFDM_RATE_48MB;
 653         rates[index++] = IEEE80211_OFDM_RATE_54MB;
 654
 655         return index;
 656 }
 657
 658 int wl1271_cmd_build_null_data(struct wl1271 *wl)
 659 {
 660         struct wl12xx_null_data_template template;
 661
 662         if (!is_zero_ether_addr(wl->bssid)) {
 663                 memcpy(template.header.da, wl->bssid, ETH_ALEN);
 664                 memcpy(template.header.bssid, wl->bssid, ETH_ALEN);
 665         } else {
 666                 memset(template.header.da, 0xff, ETH_ALEN);
 667                 memset(template.header.bssid, 0xff, ETH_ALEN);
 668         }
 669
 670         memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
 671         template.header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_DATA |
 672                                                 IEEE80211_STYPE_NULLFUNC);
 673
 674         return wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, &template,
 675                                        sizeof(template));
 676
 677 }
 678
 679 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, u16 aid)
 680 {
 681         struct wl12xx_ps_poll_template template;
 682
 683         memcpy(template.bssid, wl->bssid, ETH_ALEN);
 684         memcpy(template.ta, wl->mac_addr, ETH_ALEN);
 685
 686         /* aid in PS-Poll has its two MSBs each set to 1 */
 687         template.aid = cpu_to_le16(1 << 15 | 1 << 14 | aid);
 688
 689         template.fc = cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 690
 691         return wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, &template,
 692                                        sizeof(template));
 693
 694 }
 695
 696 int wl1271_cmd_build_probe_req(struct wl1271 *wl, u8 *ssid, size_t ssid_len)
 697 {
 698         struct wl12xx_probe_req_template template;
 699         struct wl12xx_ie_rates *rates;
 700         char *ptr;
 701         u16 size;
 702
 703         ptr = (char *)&template;
 704         size = sizeof(struct ieee80211_header);
 705
 706         memset(template.header.da, 0xff, ETH_ALEN);
 707         memset(template.header.bssid, 0xff, ETH_ALEN);
 708         memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
 709         template.header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
 710
 711         /* IEs */
 712         /* SSID */
 713         template.ssid.header.id = WLAN_EID_SSID;
 714         template.ssid.header.len = ssid_len;
 715         if (ssid_len && ssid)
 716                 memcpy(template.ssid.ssid, ssid, ssid_len);
 717         size += sizeof(struct wl12xx_ie_header) + ssid_len;
 718         ptr += size;
 719
 720         /* Basic Rates */
 721         rates = (struct wl12xx_ie_rates *)ptr;
 722         rates->header.id = WLAN_EID_SUPP_RATES;
 723         rates->header.len = wl1271_build_basic_rates(rates->rates);
 724         size += sizeof(struct wl12xx_ie_header) + rates->header.len;
 725         ptr += sizeof(struct wl12xx_ie_header) + rates->header.len;
 726
 727         /* Extended rates */
 728         rates = (struct wl12xx_ie_rates *)ptr;
 729         rates->header.id = WLAN_EID_EXT_SUPP_RATES;
 730         rates->header.len = wl1271_build_extended_rates(rates->rates);
 731         size += sizeof(struct wl12xx_ie_header) + rates->header.len;
 732
 733         wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", &template, size);
 734
 735         return wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 736                                        &template, size);
 737 }
 738
 739 int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id)
 740 {
 741         struct wl1271_cmd_set_keys *cmd;
 742         int ret = 0;
 743
 744         wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
 745
 746         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 747         if (!cmd) {
 748                 ret = -ENOMEM;
 749                 goto out;
 750         }
 751
 752         cmd->id = id;
 753         cmd->key_action = KEY_SET_ID;
 754         cmd->key_type = KEY_WEP;
 755
 756         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd));
 757         if (ret < 0) {
 758                 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
 759                 goto out;
 760         }
 761
 762 out:
 763         kfree(cmd);
 764
 765         return ret;
 766 }
 767
 768 int wl1271_cmd_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
 769                        u8 key_size, const u8 *key, const u8 *addr,
 770                        u32 tx_seq_32, u16 tx_seq_16)
 771 {
 772         struct wl1271_cmd_set_keys *cmd;
 773         int ret = 0;
 774
 775         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 776         if (!cmd) {
 777                 ret = -ENOMEM;
 778                 goto out;
 779         }
 780
 781         if (key_type != KEY_WEP)
 782                 memcpy(cmd->addr, addr, ETH_ALEN);
 783
 784         cmd->key_action = action;
 785         cmd->key_size = key_size;
 786         cmd->key_type = key_type;
 787
 788         cmd->ac_seq_num16[0] = tx_seq_16;
 789         cmd->ac_seq_num32[0] = tx_seq_32;
 790
 791         /* we have only one SSID profile */
 792         cmd->ssid_profile = 0;
 793
 794         cmd->id = id;
 795
 796         if (key_type == KEY_TKIP) {
 797                 /*
 798                  * We get the key in the following form:
 799                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
 800                  * but the target is expecting:
 801                  * TKIP - RX MIC - TX MIC
 802                  */
 803                 memcpy(cmd->key, key, 16);
 804                 memcpy(cmd->key + 16, key + 24, 8);
 805                 memcpy(cmd->key + 24, key + 16, 8);
 806
 807         } else {
 808                 memcpy(cmd->key, key, key_size);
 809         }
 810
 811         wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
 812
 813         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd));
 814         if (ret < 0) {
 815                 wl1271_warning("could not set keys");
 816                 goto out;
 817         }
 818
 819 out:
 820         kfree(cmd);
 821
 822         return ret;
 823 }