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_write(wl, wl->cmd_box_addr, buf, len, false);
  59
  60         wl1271_spi_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
  61
  62         timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
  63
  64         intr = wl1271_spi_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_spi_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  75         }
  76
  77         wl1271_spi_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         /* FIXME: This is a workaround, because with the current stack, we
 195          * cannot know when we have disassociated.  So, if we have already
 196          * joined, we disconnect before joining again. */
 197         if (wl->joined) {
 198                 ret = wl1271_cmd_disconnect(wl);
 199                 if (ret < 0) {
 200                         wl1271_error("failed to disconnect before rejoining");
 201                         goto out;
 202                 }
 203
 204                 wl->joined = false;
 205         }
 206
 207         join = kzalloc(sizeof(*join), GFP_KERNEL);
 208         if (!join) {
 209                 ret = -ENOMEM;
 210                 goto out;
 211         }
 212
 213         wl1271_debug(DEBUG_CMD, "cmd join");
 214
 215         /* Reverse order BSSID */
 216         bssid = (u8 *) &join->bssid_lsb;
 217         for (i = 0; i < ETH_ALEN; i++)
 218                 bssid[i] = wl->bssid[ETH_ALEN - i - 1];
 219
 220         join->rx_config_options = wl->rx_config;
 221         join->rx_filter_options = wl->rx_filter;
 222
 223         /*
 224          * FIXME: disable temporarily all filters because after commit
 225          * 9cef8737 "mac80211: fix managed mode BSSID handling" broke
 226          * association. The filter logic needs to be implemented properly
 227          * and once that is done, this hack can be removed.
 228          */
 229         join->rx_config_options = 0;
 230         join->rx_filter_options = WL1271_DEFAULT_RX_FILTER;
 231
 232         join->basic_rate_set = CONF_HW_BIT_RATE_1MBPS | CONF_HW_BIT_RATE_2MBPS |
 233                 CONF_HW_BIT_RATE_5_5MBPS | CONF_HW_BIT_RATE_11MBPS;
 234
 235         join->beacon_interval = WL1271_DEFAULT_BEACON_INT;
 236         join->dtim_interval = WL1271_DEFAULT_DTIM_PERIOD;
 237         join->bss_type = wl->bss_type;
 238         join->channel = wl->channel;
 239         join->ssid_len = wl->ssid_len;
 240         memcpy(join->ssid, wl->ssid, wl->ssid_len);
 241         join->ctrl = WL1271_JOIN_CMD_CTRL_TX_FLUSH;
 242
 243         /* increment the session counter */
 244         wl->session_counter++;
 245         if (wl->session_counter >= SESSION_COUNTER_MAX)
 246                 wl->session_counter = 0;
 247
 248         join->ctrl |= wl->session_counter << WL1271_JOIN_CMD_TX_SESSION_OFFSET;
 249
 250         /* reset TX security counters */
 251         wl->tx_security_last_seq = 0;
 252         wl->tx_security_seq_16 = 0;
 253         wl->tx_security_seq_32 = 0;
 254
 255         ret = wl1271_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join));
 256         if (ret < 0) {
 257                 wl1271_error("failed to initiate cmd join");
 258                 goto out_free;
 259         }
 260
 261         wl->joined = true;
 262
 263         /*
 264          * ugly hack: we should wait for JOIN_EVENT_COMPLETE_ID but to
 265          * simplify locking we just sleep instead, for now
 266          */
 267         msleep(10);
 268
 269 out_free:
 270         kfree(join);
 271
 272 out:
 273         return ret;
 274 }
 275
 276 /**
 277  * send test command to firmware
 278  *
 279  * @wl: wl struct
 280  * @buf: buffer containing the command, with all headers, must work with dma
 281  * @len: length of the buffer
 282  * @answer: is answer needed
 283  */
 284 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
 285 {
 286         int ret;
 287
 288         wl1271_debug(DEBUG_CMD, "cmd test");
 289
 290         ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len);
 291
 292         if (ret < 0) {
 293                 wl1271_warning("TEST command failed");
 294                 return ret;
 295         }
 296
 297         if (answer) {
 298                 struct wl1271_command *cmd_answer;
 299
 300                 /*
 301                  * The test command got in, we can read the answer.
 302                  * The answer would be a wl1271_command, where the
 303                  * parameter array contains the actual answer.
 304                  */
 305                 wl1271_spi_read(wl, wl->cmd_box_addr, buf, buf_len, false);
 306
 307                 cmd_answer = buf;
 308
 309                 if (cmd_answer->header.status != CMD_STATUS_SUCCESS)
 310                         wl1271_error("TEST command answer error: %d",
 311                                      cmd_answer->header.status);
 312         }
 313
 314         return 0;
 315 }
 316
 317 /**
 318  * read acx from firmware
 319  *
 320  * @wl: wl struct
 321  * @id: acx id
 322  * @buf: buffer for the response, including all headers, must work with dma
 323  * @len: lenght of buf
 324  */
 325 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
 326 {
 327         struct acx_header *acx = buf;
 328         int ret;
 329
 330         wl1271_debug(DEBUG_CMD, "cmd interrogate");
 331
 332         acx->id = id;
 333
 334         /* payload length, does not include any headers */
 335         acx->len = len - sizeof(*acx);
 336
 337         ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx));
 338         if (ret < 0) {
 339                 wl1271_error("INTERROGATE command failed");
 340                 goto out;
 341         }
 342
 343         /* the interrogate command got in, we can read the answer */
 344         wl1271_spi_read(wl, wl->cmd_box_addr, buf, len, false);
 345
 346         acx = buf;
 347         if (acx->cmd.status != CMD_STATUS_SUCCESS)
 348                 wl1271_error("INTERROGATE command error: %d",
 349                              acx->cmd.status);
 350
 351 out:
 352         return ret;
 353 }
 354
 355 /**
 356  * write acx value to firmware
 357  *
 358  * @wl: wl struct
 359  * @id: acx id
 360  * @buf: buffer containing acx, including all headers, must work with dma
 361  * @len: length of buf
 362  */
 363 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
 364 {
 365         struct acx_header *acx = buf;
 366         int ret;
 367
 368         wl1271_debug(DEBUG_CMD, "cmd configure");
 369
 370         acx->id = id;
 371
 372         /* payload length, does not include any headers */
 373         acx->len = len - sizeof(*acx);
 374
 375         ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len);
 376         if (ret < 0) {
 377                 wl1271_warning("CONFIGURE command NOK");
 378                 return ret;
 379         }
 380
 381         return 0;
 382 }
 383
 384 int wl1271_cmd_data_path(struct wl1271 *wl, u8 channel, bool enable)
 385 {
 386         struct cmd_enabledisable_path *cmd;
 387         int ret;
 388         u16 cmd_rx, cmd_tx;
 389
 390         wl1271_debug(DEBUG_CMD, "cmd data path");
 391
 392         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 393         if (!cmd) {
 394                 ret = -ENOMEM;
 395                 goto out;
 396         }
 397
 398         cmd->channel = channel;
 399
 400         if (enable) {
 401                 cmd_rx = CMD_ENABLE_RX;
 402                 cmd_tx = CMD_ENABLE_TX;
 403         } else {
 404                 cmd_rx = CMD_DISABLE_RX;
 405                 cmd_tx = CMD_DISABLE_TX;
 406         }
 407
 408         ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd));
 409         if (ret < 0) {
 410                 wl1271_error("rx %s cmd for channel %d failed",
 411                              enable ? "start" : "stop", channel);
 412                 goto out;
 413         }
 414
 415         wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
 416                      enable ? "start" : "stop", channel);
 417
 418         ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd));
 419         if (ret < 0) {
 420                 wl1271_error("tx %s cmd for channel %d failed",
 421                              enable ? "start" : "stop", channel);
 422                 return ret;
 423         }
 424
 425         wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
 426                      enable ? "start" : "stop", channel);
 427
 428 out:
 429         kfree(cmd);
 430         return ret;
 431 }
 432
 433 int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode)
 434 {
 435         struct wl1271_cmd_ps_params *ps_params = NULL;
 436         int ret = 0;
 437
 438         /* FIXME: this should be in ps.c */
 439         ret = wl1271_acx_wake_up_conditions(wl, WAKE_UP_EVENT_DTIM_BITMAP,
 440                                             wl->listen_int);
 441         if (ret < 0) {
 442                 wl1271_error("couldn't set wake up conditions");
 443                 goto out;
 444         }
 445
 446         wl1271_debug(DEBUG_CMD, "cmd set ps mode");
 447
 448         ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
 449         if (!ps_params) {
 450                 ret = -ENOMEM;
 451                 goto out;
 452         }
 453
 454         ps_params->ps_mode = ps_mode;
 455         ps_params->send_null_data = 1;
 456         ps_params->retries = 5;
 457         ps_params->hang_over_period = 128;
 458         ps_params->null_data_rate = 1; /* 1 Mbps */
 459
 460         ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
 461                               sizeof(*ps_params));
 462         if (ret < 0) {
 463                 wl1271_error("cmd set_ps_mode failed");
 464                 goto out;
 465         }
 466
 467 out:
 468         kfree(ps_params);
 469         return ret;
 470 }
 471
 472 int wl1271_cmd_read_memory(struct wl1271 *wl, u32 addr, void *answer,
 473                            size_t len)
 474 {
 475         struct cmd_read_write_memory *cmd;
 476         int ret = 0;
 477
 478         wl1271_debug(DEBUG_CMD, "cmd read memory");
 479
 480         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 481         if (!cmd) {
 482                 ret = -ENOMEM;
 483                 goto out;
 484         }
 485
 486         WARN_ON(len > MAX_READ_SIZE);
 487         len = min_t(size_t, len, MAX_READ_SIZE);
 488
 489         cmd->addr = addr;
 490         cmd->size = len;
 491
 492         ret = wl1271_cmd_send(wl, CMD_READ_MEMORY, cmd, sizeof(*cmd));
 493         if (ret < 0) {
 494                 wl1271_error("read memory command failed: %d", ret);
 495                 goto out;
 496         }
 497
 498         /* the read command got in, we can now read the answer */
 499         wl1271_spi_read(wl, wl->cmd_box_addr, cmd, sizeof(*cmd), false);
 500
 501         if (cmd->header.status != CMD_STATUS_SUCCESS)
 502                 wl1271_error("error in read command result: %d",
 503                              cmd->header.status);
 504
 505         memcpy(answer, cmd->value, len);
 506
 507 out:
 508         kfree(cmd);
 509         return ret;
 510 }
 511
 512 int wl1271_cmd_scan(struct wl1271 *wl, u8 *ssid, size_t len,
 513                     u8 active_scan, u8 high_prio, u8 num_channels,
 514                     u8 probe_requests)
 515 {
 516
 517         struct wl1271_cmd_trigger_scan_to *trigger = NULL;
 518         struct wl1271_cmd_scan *params = NULL;
 519         int i, ret;
 520         u16 scan_options = 0;
 521
 522         if (wl->scanning)
 523                 return -EINVAL;
 524
 525         params = kzalloc(sizeof(*params), GFP_KERNEL);
 526         if (!params)
 527                 return -ENOMEM;
 528
 529         params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
 530         params->params.rx_filter_options =
 531                 cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
 532
 533         if (!active_scan)
 534                 scan_options |= WL1271_SCAN_OPT_PASSIVE;
 535         if (high_prio)
 536                 scan_options |= WL1271_SCAN_OPT_PRIORITY_HIGH;
 537         params->params.scan_options = scan_options;
 538
 539         params->params.num_channels = num_channels;
 540         params->params.num_probe_requests = probe_requests;
 541         params->params.tx_rate = cpu_to_le32(CONF_HW_BIT_RATE_2MBPS);
 542         params->params.tid_trigger = 0;
 543         params->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
 544
 545         for (i = 0; i < num_channels; i++) {
 546                 params->channels[i].min_duration =
 547                         cpu_to_le32(WL1271_SCAN_CHAN_MIN_DURATION);
 548                 params->channels[i].max_duration =
 549                         cpu_to_le32(WL1271_SCAN_CHAN_MAX_DURATION);
 550                 memset(&params->channels[i].bssid_lsb, 0xff, 4);
 551                 memset(&params->channels[i].bssid_msb, 0xff, 2);
 552                 params->channels[i].early_termination = 0;
 553                 params->channels[i].tx_power_att = WL1271_SCAN_CURRENT_TX_PWR;
 554                 params->channels[i].channel = i + 1;
 555         }
 556
 557         if (len && ssid) {
 558                 params->params.ssid_len = len;
 559                 memcpy(params->params.ssid, ssid, len);
 560         }
 561
 562         ret = wl1271_cmd_build_probe_req(wl, ssid, len);
 563         if (ret < 0) {
 564                 wl1271_error("PROBE request template failed");
 565                 goto out;
 566         }
 567
 568         trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
 569         if (!trigger) {
 570                 ret = -ENOMEM;
 571                 goto out;
 572         }
 573
 574         /* disable the timeout */
 575         trigger->timeout = 0;
 576
 577         ret = wl1271_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger,
 578                               sizeof(*trigger));
 579         if (ret < 0) {
 580                 wl1271_error("trigger scan to failed for hw scan");
 581                 goto out;
 582         }
 583
 584         wl1271_dump(DEBUG_SCAN, "SCAN: ", params, sizeof(*params));
 585
 586         wl->scanning = true;
 587
 588         ret = wl1271_cmd_send(wl, CMD_SCAN, params, sizeof(*params));
 589         if (ret < 0) {
 590                 wl1271_error("SCAN failed");
 591                 goto out;
 592         }
 593
 594         wl1271_spi_read(wl, wl->cmd_box_addr, params, sizeof(*params),
 595                         false);
 596
 597         if (params->header.status != CMD_STATUS_SUCCESS) {
 598                 wl1271_error("Scan command error: %d",
 599                              params->header.status);
 600                 wl->scanning = false;
 601                 ret = -EIO;
 602                 goto out;
 603         }
 604
 605 out:
 606         kfree(params);
 607         return ret;
 608 }
 609
 610 int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
 611                             void *buf, size_t buf_len)
 612 {
 613         struct wl1271_cmd_template_set *cmd;
 614         int ret = 0;
 615
 616         wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
 617
 618         WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
 619         buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
 620
 621         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 622         if (!cmd) {
 623                 ret = -ENOMEM;
 624                 goto out;
 625         }
 626
 627         cmd->len = cpu_to_le16(buf_len);
 628         cmd->template_type = template_id;
 629         cmd->enabled_rates = wl->conf.tx.rc_conf.enabled_rates;
 630         cmd->short_retry_limit = wl->conf.tx.rc_conf.short_retry_limit;
 631         cmd->long_retry_limit = wl->conf.tx.rc_conf.long_retry_limit;
 632
 633         if (buf)
 634                 memcpy(cmd->template_data, buf, buf_len);
 635
 636         ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd));
 637         if (ret < 0) {
 638                 wl1271_warning("cmd set_template failed: %d", ret);
 639                 goto out_free;
 640         }
 641
 642 out_free:
 643         kfree(cmd);
 644
 645 out:
 646         return ret;
 647 }
 648
 649 static int wl1271_build_basic_rates(char *rates)
 650 {
 651         u8 index = 0;
 652
 653         rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
 654         rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
 655         rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
 656         rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
 657
 658         return index;
 659 }
 660
 661 static int wl1271_build_extended_rates(char *rates)
 662 {
 663         u8 index = 0;
 664
 665         rates[index++] = IEEE80211_OFDM_RATE_6MB;
 666         rates[index++] = IEEE80211_OFDM_RATE_9MB;
 667         rates[index++] = IEEE80211_OFDM_RATE_12MB;
 668         rates[index++] = IEEE80211_OFDM_RATE_18MB;
 669         rates[index++] = IEEE80211_OFDM_RATE_24MB;
 670         rates[index++] = IEEE80211_OFDM_RATE_36MB;
 671         rates[index++] = IEEE80211_OFDM_RATE_48MB;
 672         rates[index++] = IEEE80211_OFDM_RATE_54MB;
 673
 674         return index;
 675 }
 676
 677 int wl1271_cmd_build_null_data(struct wl1271 *wl)
 678 {
 679         struct wl12xx_null_data_template template;
 680
 681         if (!is_zero_ether_addr(wl->bssid)) {
 682                 memcpy(template.header.da, wl->bssid, ETH_ALEN);
 683                 memcpy(template.header.bssid, wl->bssid, ETH_ALEN);
 684         } else {
 685                 memset(template.header.da, 0xff, ETH_ALEN);
 686                 memset(template.header.bssid, 0xff, ETH_ALEN);
 687         }
 688
 689         memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
 690         template.header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_DATA |
 691                                                 IEEE80211_STYPE_NULLFUNC);
 692
 693         return wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, &template,
 694                                        sizeof(template));
 695
 696 }
 697
 698 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, u16 aid)
 699 {
 700         struct wl12xx_ps_poll_template template;
 701
 702         memcpy(template.bssid, wl->bssid, ETH_ALEN);
 703         memcpy(template.ta, wl->mac_addr, ETH_ALEN);
 704
 705         /* aid in PS-Poll has its two MSBs each set to 1 */
 706         template.aid = cpu_to_le16(1 << 15 | 1 << 14 | aid);
 707
 708         template.fc = cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 709
 710         return wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, &template,
 711                                        sizeof(template));
 712
 713 }
 714
 715 int wl1271_cmd_build_probe_req(struct wl1271 *wl, u8 *ssid, size_t ssid_len)
 716 {
 717         struct wl12xx_probe_req_template template;
 718         struct wl12xx_ie_rates *rates;
 719         char *ptr;
 720         u16 size;
 721
 722         ptr = (char *)&template;
 723         size = sizeof(struct ieee80211_header);
 724
 725         memset(template.header.da, 0xff, ETH_ALEN);
 726         memset(template.header.bssid, 0xff, ETH_ALEN);
 727         memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
 728         template.header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
 729
 730         /* IEs */
 731         /* SSID */
 732         template.ssid.header.id = WLAN_EID_SSID;
 733         template.ssid.header.len = ssid_len;
 734         if (ssid_len && ssid)
 735                 memcpy(template.ssid.ssid, ssid, ssid_len);
 736         size += sizeof(struct wl12xx_ie_header) + ssid_len;
 737         ptr += size;
 738
 739         /* Basic Rates */
 740         rates = (struct wl12xx_ie_rates *)ptr;
 741         rates->header.id = WLAN_EID_SUPP_RATES;
 742         rates->header.len = wl1271_build_basic_rates(rates->rates);
 743         size += sizeof(struct wl12xx_ie_header) + rates->header.len;
 744         ptr += sizeof(struct wl12xx_ie_header) + rates->header.len;
 745
 746         /* Extended rates */
 747         rates = (struct wl12xx_ie_rates *)ptr;
 748         rates->header.id = WLAN_EID_EXT_SUPP_RATES;
 749         rates->header.len = wl1271_build_extended_rates(rates->rates);
 750         size += sizeof(struct wl12xx_ie_header) + rates->header.len;
 751
 752         wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", &template, size);
 753
 754         return wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 755                                        &template, size);
 756 }
 757
 758 int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id)
 759 {
 760         struct wl1271_cmd_set_keys *cmd;
 761         int ret = 0;
 762
 763         wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
 764
 765         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 766         if (!cmd) {
 767                 ret = -ENOMEM;
 768                 goto out;
 769         }
 770
 771         cmd->id = id;
 772         cmd->key_action = KEY_SET_ID;
 773         cmd->key_type = KEY_WEP;
 774
 775         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd));
 776         if (ret < 0) {
 777                 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
 778                 goto out;
 779         }
 780
 781 out:
 782         kfree(cmd);
 783
 784         return ret;
 785 }
 786
 787 int wl1271_cmd_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
 788                        u8 key_size, const u8 *key, const u8 *addr,
 789                        u32 tx_seq_32, u16 tx_seq_16)
 790 {
 791         struct wl1271_cmd_set_keys *cmd;
 792         int ret = 0;
 793
 794         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 795         if (!cmd) {
 796                 ret = -ENOMEM;
 797                 goto out;
 798         }
 799
 800         if (key_type != KEY_WEP)
 801                 memcpy(cmd->addr, addr, ETH_ALEN);
 802
 803         cmd->key_action = action;
 804         cmd->key_size = key_size;
 805         cmd->key_type = key_type;
 806
 807         cmd->ac_seq_num16[0] = tx_seq_16;
 808         cmd->ac_seq_num32[0] = tx_seq_32;
 809
 810         /* we have only one SSID profile */
 811         cmd->ssid_profile = 0;
 812
 813         cmd->id = id;
 814
 815         if (key_type == KEY_TKIP) {
 816                 /*
 817                  * We get the key in the following form:
 818                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
 819                  * but the target is expecting:
 820                  * TKIP - RX MIC - TX MIC
 821                  */
 822                 memcpy(cmd->key, key, 16);
 823                 memcpy(cmd->key + 16, key + 24, 8);
 824                 memcpy(cmd->key + 24, key + 16, 8);
 825
 826         } else {
 827                 memcpy(cmd->key, key, key_size);
 828         }
 829
 830         wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
 831
 832         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd));
 833         if (ret < 0) {
 834                 wl1271_warning("could not set keys");
 835                 goto out;
 836         }
 837
 838 out:
 839         kfree(cmd);
 840
 841         return ret;
 842 }
 843
 844 int wl1271_cmd_disconnect(struct wl1271 *wl)
 845 {
 846         struct wl1271_cmd_disconnect *cmd;
 847         int ret = 0;
 848
 849         wl1271_debug(DEBUG_CMD, "cmd disconnect");
 850
 851         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 852         if (!cmd) {
 853                 ret = -ENOMEM;
 854                 goto out;
 855         }
 856
 857         cmd->rx_config_options = wl->rx_config;
 858         cmd->rx_filter_options = wl->rx_filter;
 859         /* disconnect reason is not used in immediate disconnections */
 860         cmd->type = DISCONNECT_IMMEDIATE;
 861
 862         ret = wl1271_cmd_send(wl, CMD_DISCONNECT, cmd, sizeof(*cmd));
 863         if (ret < 0) {
 864                 wl1271_error("failed to send disconnect command");
 865                 goto out_free;
 866         }
 867
 868 out_free:
 869         kfree(cmd);
 870
 871 out:
 872         return ret;
 873 }