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