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 #include <linux/ieee80211.h>
  30
  31 #include "wl1271.h"
  32 #include "wl1271_reg.h"
  33 #include "wl1271_io.h"
  34 #include "wl1271_acx.h"
  35 #include "wl12xx_80211.h"
  36 #include "wl1271_cmd.h"
  37
  38 /*
  39  * send command to firmware
  40  *
  41  * @wl: wl struct
  42  * @id: command id
  43  * @buf: buffer containing the command, must work with dma
  44  * @len: length of the buffer
  45  */
  46 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
  47                     size_t res_len)
  48 {
  49         struct wl1271_cmd_header *cmd;
  50         unsigned long timeout;
  51         u32 intr;
  52         int ret = 0;
  53         u16 status;
  54
  55         cmd = buf;
  56         cmd->id = cpu_to_le16(id);
  57         cmd->status = 0;
  58
  59         WARN_ON(len % 4 != 0);
  60
  61         wl1271_write(wl, wl->cmd_box_addr, buf, len, false);
  62
  63         wl1271_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
  64
  65         timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
  66
  67         intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  68         while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
  69                 if (time_after(jiffies, timeout)) {
  70                         wl1271_error("command complete timeout");
  71                         ret = -ETIMEDOUT;
  72                         goto out;
  73                 }
  74
  75                 msleep(1);
  76
  77                 intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  78         }
  79
  80         /* read back the status code of the command */
  81         if (res_len == 0)
  82                 res_len = sizeof(struct wl1271_cmd_header);
  83         wl1271_read(wl, wl->cmd_box_addr, cmd, res_len, false);
  84
  85         status = le16_to_cpu(cmd->status);
  86         if (status != CMD_STATUS_SUCCESS) {
  87                 wl1271_error("command execute failure %d", status);
  88                 ret = -EIO;
  89         }
  90
  91         wl1271_write32(wl, ACX_REG_INTERRUPT_ACK,
  92                        WL1271_ACX_INTR_CMD_COMPLETE);
  93
  94 out:
  95         return ret;
  96 }
  97
  98 static int wl1271_cmd_cal_channel_tune(struct wl1271 *wl)
  99 {
 100         struct wl1271_cmd_cal_channel_tune *cmd;
 101         int ret = 0;
 102
 103         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 104         if (!cmd)
 105                 return -ENOMEM;
 106
 107         cmd->test.id = TEST_CMD_CHANNEL_TUNE;
 108
 109         cmd->band = WL1271_CHANNEL_TUNE_BAND_2_4;
 110         /* set up any channel, 7 is in the middle of the range */
 111         cmd->channel = 7;
 112
 113         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
 114         if (ret < 0)
 115                 wl1271_warning("TEST_CMD_CHANNEL_TUNE failed");
 116
 117         kfree(cmd);
 118         return ret;
 119 }
 120
 121 static int wl1271_cmd_cal_update_ref_point(struct wl1271 *wl)
 122 {
 123         struct wl1271_cmd_cal_update_ref_point *cmd;
 124         int ret = 0;
 125
 126         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 127         if (!cmd)
 128                 return -ENOMEM;
 129
 130         cmd->test.id = TEST_CMD_UPDATE_PD_REFERENCE_POINT;
 131
 132         /* FIXME: still waiting for the correct values */
 133         cmd->ref_power    = 0;
 134         cmd->ref_detector = 0;
 135
 136         cmd->sub_band     = WL1271_PD_REFERENCE_POINT_BAND_B_G;
 137
 138         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
 139         if (ret < 0)
 140                 wl1271_warning("TEST_CMD_UPDATE_PD_REFERENCE_POINT failed");
 141
 142         kfree(cmd);
 143         return ret;
 144 }
 145
 146 static int wl1271_cmd_cal_p2g(struct wl1271 *wl)
 147 {
 148         struct wl1271_cmd_cal_p2g *cmd;
 149         int ret = 0;
 150
 151         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 152         if (!cmd)
 153                 return -ENOMEM;
 154
 155         cmd->test.id = TEST_CMD_P2G_CAL;
 156
 157         cmd->sub_band_mask = WL1271_CAL_P2G_BAND_B_G;
 158
 159         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
 160         if (ret < 0)
 161                 wl1271_warning("TEST_CMD_P2G_CAL failed");
 162
 163         kfree(cmd);
 164         return ret;
 165 }
 166
 167 static int wl1271_cmd_cal(struct wl1271 *wl)
 168 {
 169         /*
 170          * FIXME: we must make sure that we're not sleeping when calibration
 171          * is done
 172          */
 173         int ret;
 174
 175         wl1271_notice("performing tx calibration");
 176
 177         ret = wl1271_cmd_cal_channel_tune(wl);
 178         if (ret < 0)
 179                 return ret;
 180
 181         ret = wl1271_cmd_cal_update_ref_point(wl);
 182         if (ret < 0)
 183                 return ret;
 184
 185         ret = wl1271_cmd_cal_p2g(wl);
 186         if (ret < 0)
 187                 return ret;
 188
 189         return ret;
 190 }
 191
 192 int wl1271_cmd_general_parms(struct wl1271 *wl)
 193 {
 194         struct wl1271_general_parms_cmd *gen_parms;
 195         int ret;
 196
 197         if (!wl->nvs)
 198                 return -ENODEV;
 199
 200         gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL);
 201         if (!gen_parms)
 202                 return -ENOMEM;
 203
 204         gen_parms->test.id = TEST_CMD_INI_FILE_GENERAL_PARAM;
 205
 206         memcpy(gen_parms->params, wl->nvs->general_params,
 207                WL1271_NVS_GENERAL_PARAMS_SIZE);
 208
 209         ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), 0);
 210         if (ret < 0)
 211                 wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
 212
 213         kfree(gen_parms);
 214         return ret;
 215 }
 216
 217 int wl1271_cmd_radio_parms(struct wl1271 *wl)
 218 {
 219         struct wl1271_radio_parms_cmd *radio_parms;
 220         struct conf_radio_parms *rparam = &wl->conf.init.radioparam;
 221         int ret;
 222
 223         if (!wl->nvs)
 224                 return -ENODEV;
 225
 226         radio_parms = kzalloc(sizeof(*radio_parms), GFP_KERNEL);
 227         if (!radio_parms)
 228                 return -ENOMEM;
 229
 230         radio_parms->test.id = TEST_CMD_INI_FILE_RADIO_PARAM;
 231
 232         memcpy(radio_parms->stat_radio_params, wl->nvs->stat_radio_params,
 233                WL1271_NVS_STAT_RADIO_PARAMS_SIZE);
 234         memcpy(radio_parms->dyn_radio_params,
 235                wl->nvs->dyn_radio_params[rparam->fem],
 236                WL1271_NVS_DYN_RADIO_PARAMS_SIZE);
 237
 238         /* FIXME: current NVS is missing 5GHz parameters */
 239
 240         wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_RADIO_PARAM: ",
 241                     radio_parms, sizeof(*radio_parms));
 242
 243         ret = wl1271_cmd_test(wl, radio_parms, sizeof(*radio_parms), 0);
 244         if (ret < 0)
 245                 wl1271_warning("CMD_INI_FILE_RADIO_PARAM failed");
 246
 247         kfree(radio_parms);
 248         return ret;
 249 }
 250
 251 int wl1271_cmd_join(struct wl1271 *wl, u8 bss_type)
 252 {
 253         static bool do_cal = true;
 254         struct wl1271_cmd_join *join;
 255         int ret, i;
 256         u8 *bssid;
 257
 258         /* FIXME: remove when we get calibration from the factory */
 259         if (do_cal) {
 260                 ret = wl1271_cmd_cal(wl);
 261                 if (ret < 0)
 262                         wl1271_warning("couldn't calibrate");
 263                 else
 264                         do_cal = false;
 265         }
 266
 267         join = kzalloc(sizeof(*join), GFP_KERNEL);
 268         if (!join) {
 269                 ret = -ENOMEM;
 270                 goto out;
 271         }
 272
 273         wl1271_debug(DEBUG_CMD, "cmd join");
 274
 275         /* Reverse order BSSID */
 276         bssid = (u8 *) &join->bssid_lsb;
 277         for (i = 0; i < ETH_ALEN; i++)
 278                 bssid[i] = wl->bssid[ETH_ALEN - i - 1];
 279
 280         join->rx_config_options = cpu_to_le32(wl->rx_config);
 281         join->rx_filter_options = cpu_to_le32(wl->rx_filter);
 282         join->bss_type = bss_type;
 283
 284         if (wl->band == IEEE80211_BAND_2GHZ)
 285                 join->basic_rate_set = cpu_to_le32(CONF_HW_BIT_RATE_1MBPS   |
 286                                                    CONF_HW_BIT_RATE_2MBPS   |
 287                                                    CONF_HW_BIT_RATE_5_5MBPS |
 288                                                    CONF_HW_BIT_RATE_11MBPS);
 289         else {
 290                 join->bss_type |= WL1271_JOIN_CMD_BSS_TYPE_5GHZ;
 291                 join->basic_rate_set = cpu_to_le32(CONF_HW_BIT_RATE_6MBPS  |
 292                                                    CONF_HW_BIT_RATE_12MBPS |
 293                                                    CONF_HW_BIT_RATE_24MBPS);
 294         }
 295
 296         join->beacon_interval = cpu_to_le16(WL1271_DEFAULT_BEACON_INT);
 297         join->dtim_interval = WL1271_DEFAULT_DTIM_PERIOD;
 298
 299         join->channel = wl->channel;
 300         join->ssid_len = wl->ssid_len;
 301         memcpy(join->ssid, wl->ssid, wl->ssid_len);
 302         join->ctrl = WL1271_JOIN_CMD_CTRL_TX_FLUSH;
 303
 304         /* increment the session counter */
 305         wl->session_counter++;
 306         if (wl->session_counter >= SESSION_COUNTER_MAX)
 307                 wl->session_counter = 0;
 308
 309         join->ctrl |= wl->session_counter << WL1271_JOIN_CMD_TX_SESSION_OFFSET;
 310
 311         /* reset TX security counters */
 312         wl->tx_security_last_seq = 0;
 313         wl->tx_security_seq = 0;
 314
 315         ret = wl1271_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join), 0);
 316         if (ret < 0) {
 317                 wl1271_error("failed to initiate cmd join");
 318                 goto out_free;
 319         }
 320
 321         /*
 322          * ugly hack: we should wait for JOIN_EVENT_COMPLETE_ID but to
 323          * simplify locking we just sleep instead, for now
 324          */
 325         msleep(10);
 326
 327 out_free:
 328         kfree(join);
 329
 330 out:
 331         return ret;
 332 }
 333
 334 /**
 335  * send test command to firmware
 336  *
 337  * @wl: wl struct
 338  * @buf: buffer containing the command, with all headers, must work with dma
 339  * @len: length of the buffer
 340  * @answer: is answer needed
 341  */
 342 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
 343 {
 344         int ret;
 345         size_t res_len = 0;
 346
 347         wl1271_debug(DEBUG_CMD, "cmd test");
 348
 349         if (answer)
 350                 res_len = buf_len;
 351
 352         ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
 353
 354         if (ret < 0) {
 355                 wl1271_warning("TEST command failed");
 356                 return ret;
 357         }
 358
 359         return ret;
 360 }
 361
 362 /**
 363  * read acx from firmware
 364  *
 365  * @wl: wl struct
 366  * @id: acx id
 367  * @buf: buffer for the response, including all headers, must work with dma
 368  * @len: lenght of buf
 369  */
 370 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
 371 {
 372         struct acx_header *acx = buf;
 373         int ret;
 374
 375         wl1271_debug(DEBUG_CMD, "cmd interrogate");
 376
 377         acx->id = cpu_to_le16(id);
 378
 379         /* payload length, does not include any headers */
 380         acx->len = cpu_to_le16(len - sizeof(*acx));
 381
 382         ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len);
 383         if (ret < 0)
 384                 wl1271_error("INTERROGATE command failed");
 385
 386         return ret;
 387 }
 388
 389 /**
 390  * write acx value to firmware
 391  *
 392  * @wl: wl struct
 393  * @id: acx id
 394  * @buf: buffer containing acx, including all headers, must work with dma
 395  * @len: length of buf
 396  */
 397 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
 398 {
 399         struct acx_header *acx = buf;
 400         int ret;
 401
 402         wl1271_debug(DEBUG_CMD, "cmd configure");
 403
 404         acx->id = cpu_to_le16(id);
 405
 406         /* payload length, does not include any headers */
 407         acx->len = cpu_to_le16(len - sizeof(*acx));
 408
 409         ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0);
 410         if (ret < 0) {
 411                 wl1271_warning("CONFIGURE command NOK");
 412                 return ret;
 413         }
 414
 415         return 0;
 416 }
 417
 418 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
 419 {
 420         struct cmd_enabledisable_path *cmd;
 421         int ret;
 422         u16 cmd_rx, cmd_tx;
 423
 424         wl1271_debug(DEBUG_CMD, "cmd data path");
 425
 426         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 427         if (!cmd) {
 428                 ret = -ENOMEM;
 429                 goto out;
 430         }
 431
 432         /* the channel here is only used for calibration, so hardcoded to 1 */
 433         cmd->channel = 1;
 434
 435         if (enable) {
 436                 cmd_rx = CMD_ENABLE_RX;
 437                 cmd_tx = CMD_ENABLE_TX;
 438         } else {
 439                 cmd_rx = CMD_DISABLE_RX;
 440                 cmd_tx = CMD_DISABLE_TX;
 441         }
 442
 443         ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
 444         if (ret < 0) {
 445                 wl1271_error("rx %s cmd for channel %d failed",
 446                              enable ? "start" : "stop", cmd->channel);
 447                 goto out;
 448         }
 449
 450         wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
 451                      enable ? "start" : "stop", cmd->channel);
 452
 453         ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
 454         if (ret < 0) {
 455                 wl1271_error("tx %s cmd for channel %d failed",
 456                              enable ? "start" : "stop", cmd->channel);
 457                 return ret;
 458         }
 459
 460         wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
 461                      enable ? "start" : "stop", cmd->channel);
 462
 463 out:
 464         kfree(cmd);
 465         return ret;
 466 }
 467
 468 int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode, bool send)
 469 {
 470         struct wl1271_cmd_ps_params *ps_params = NULL;
 471         int ret = 0;
 472
 473         /* FIXME: this should be in ps.c */
 474         ret = wl1271_acx_wake_up_conditions(wl);
 475         if (ret < 0) {
 476                 wl1271_error("couldn't set wake up conditions");
 477                 goto out;
 478         }
 479
 480         wl1271_debug(DEBUG_CMD, "cmd set ps mode");
 481
 482         ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
 483         if (!ps_params) {
 484                 ret = -ENOMEM;
 485                 goto out;
 486         }
 487
 488         ps_params->ps_mode = ps_mode;
 489         ps_params->send_null_data = send;
 490         ps_params->retries = 5;
 491         ps_params->hang_over_period = 128;
 492         ps_params->null_data_rate = cpu_to_le32(1); /* 1 Mbps */
 493
 494         ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
 495                               sizeof(*ps_params), 0);
 496         if (ret < 0) {
 497                 wl1271_error("cmd set_ps_mode failed");
 498                 goto out;
 499         }
 500
 501 out:
 502         kfree(ps_params);
 503         return ret;
 504 }
 505
 506 int wl1271_cmd_read_memory(struct wl1271 *wl, u32 addr, void *answer,
 507                            size_t len)
 508 {
 509         struct cmd_read_write_memory *cmd;
 510         int ret = 0;
 511
 512         wl1271_debug(DEBUG_CMD, "cmd read memory");
 513
 514         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 515         if (!cmd) {
 516                 ret = -ENOMEM;
 517                 goto out;
 518         }
 519
 520         WARN_ON(len > MAX_READ_SIZE);
 521         len = min_t(size_t, len, MAX_READ_SIZE);
 522
 523         cmd->addr = cpu_to_le32(addr);
 524         cmd->size = cpu_to_le32(len);
 525
 526         ret = wl1271_cmd_send(wl, CMD_READ_MEMORY, cmd, sizeof(*cmd),
 527                               sizeof(*cmd));
 528         if (ret < 0) {
 529                 wl1271_error("read memory command failed: %d", ret);
 530                 goto out;
 531         }
 532
 533         /* the read command got in */
 534         memcpy(answer, cmd->value, len);
 535
 536 out:
 537         kfree(cmd);
 538         return ret;
 539 }
 540
 541 int wl1271_cmd_scan(struct wl1271 *wl, const u8 *ssid, size_t ssid_len,
 542                     const u8 *ie, size_t ie_len, u8 active_scan,
 543                     u8 high_prio, u8 band, u8 probe_requests)
 544 {
 545
 546         struct wl1271_cmd_trigger_scan_to *trigger = NULL;
 547         struct wl1271_cmd_scan *params = NULL;
 548         struct ieee80211_channel *channels;
 549         int i, j, n_ch, ret;
 550         u16 scan_options = 0;
 551         u8 ieee_band;
 552
 553         if (band == WL1271_SCAN_BAND_2_4_GHZ)
 554                 ieee_band = IEEE80211_BAND_2GHZ;
 555         else if (band == WL1271_SCAN_BAND_DUAL && wl1271_11a_enabled())
 556                 ieee_band = IEEE80211_BAND_2GHZ;
 557         else if (band == WL1271_SCAN_BAND_5_GHZ && wl1271_11a_enabled())
 558                 ieee_band = IEEE80211_BAND_5GHZ;
 559         else
 560                 return -EINVAL;
 561
 562         if (wl->hw->wiphy->bands[ieee_band]->channels == NULL)
 563                 return -EINVAL;
 564
 565         channels = wl->hw->wiphy->bands[ieee_band]->channels;
 566         n_ch = wl->hw->wiphy->bands[ieee_band]->n_channels;
 567
 568         if (test_bit(WL1271_FLAG_SCANNING, &wl->flags))
 569                 return -EINVAL;
 570
 571         params = kzalloc(sizeof(*params), GFP_KERNEL);
 572         if (!params)
 573                 return -ENOMEM;
 574
 575         params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
 576         params->params.rx_filter_options =
 577                 cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
 578
 579         if (!active_scan)
 580                 scan_options |= WL1271_SCAN_OPT_PASSIVE;
 581         if (high_prio)
 582                 scan_options |= WL1271_SCAN_OPT_PRIORITY_HIGH;
 583         params->params.scan_options = cpu_to_le16(scan_options);
 584
 585         params->params.num_probe_requests = probe_requests;
 586         /* Let the fw autodetect suitable tx_rate for probes */
 587         params->params.tx_rate = 0;
 588         params->params.tid_trigger = 0;
 589         params->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
 590
 591         if (band == WL1271_SCAN_BAND_DUAL)
 592                 params->params.band = WL1271_SCAN_BAND_2_4_GHZ;
 593         else
 594                 params->params.band = band;
 595
 596         for (i = 0, j = 0; i < n_ch && i < WL1271_SCAN_MAX_CHANNELS; i++) {
 597                 if (!(channels[i].flags & IEEE80211_CHAN_DISABLED)) {
 598                         params->channels[j].min_duration =
 599                                 cpu_to_le32(WL1271_SCAN_CHAN_MIN_DURATION);
 600                         params->channels[j].max_duration =
 601                                 cpu_to_le32(WL1271_SCAN_CHAN_MAX_DURATION);
 602                         memset(&params->channels[j].bssid_lsb, 0xff, 4);
 603                         memset(&params->channels[j].bssid_msb, 0xff, 2);
 604                         params->channels[j].early_termination = 0;
 605                         params->channels[j].tx_power_att =
 606                                 WL1271_SCAN_CURRENT_TX_PWR;
 607                         params->channels[j].channel = channels[i].hw_value;
 608                         j++;
 609                 }
 610         }
 611
 612         params->params.num_channels = j;
 613
 614         if (ssid_len && ssid) {
 615                 params->params.ssid_len = ssid_len;
 616                 memcpy(params->params.ssid, ssid, ssid_len);
 617         }
 618
 619         ret = wl1271_cmd_build_probe_req(wl, ssid, ssid_len,
 620                                          ie, ie_len, ieee_band);
 621         if (ret < 0) {
 622                 wl1271_error("PROBE request template failed");
 623                 goto out;
 624         }
 625
 626         trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
 627         if (!trigger) {
 628                 ret = -ENOMEM;
 629                 goto out;
 630         }
 631
 632         /* disable the timeout */
 633         trigger->timeout = 0;
 634
 635         ret = wl1271_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger,
 636                               sizeof(*trigger), 0);
 637         if (ret < 0) {
 638                 wl1271_error("trigger scan to failed for hw scan");
 639                 goto out;
 640         }
 641
 642         wl1271_dump(DEBUG_SCAN, "SCAN: ", params, sizeof(*params));
 643
 644         set_bit(WL1271_FLAG_SCANNING, &wl->flags);
 645         if (wl1271_11a_enabled()) {
 646                 wl->scan.state = band;
 647                 if (band == WL1271_SCAN_BAND_DUAL) {
 648                         wl->scan.active = active_scan;
 649                         wl->scan.high_prio = high_prio;
 650                         wl->scan.probe_requests = probe_requests;
 651                         if (ssid_len && ssid) {
 652                                 wl->scan.ssid_len = ssid_len;
 653                                 memcpy(wl->scan.ssid, ssid, ssid_len);
 654                         } else
 655                                 wl->scan.ssid_len = 0;
 656                 }
 657         }
 658
 659         ret = wl1271_cmd_send(wl, CMD_SCAN, params, sizeof(*params), 0);
 660         if (ret < 0) {
 661                 wl1271_error("SCAN failed");
 662                 clear_bit(WL1271_FLAG_SCANNING, &wl->flags);
 663                 goto out;
 664         }
 665
 666 out:
 667         kfree(params);
 668         kfree(trigger);
 669         return ret;
 670 }
 671
 672 int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
 673                             void *buf, size_t buf_len)
 674 {
 675         struct wl1271_cmd_template_set *cmd;
 676         int ret = 0;
 677
 678         wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
 679
 680         WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
 681         buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
 682
 683         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 684         if (!cmd) {
 685                 ret = -ENOMEM;
 686                 goto out;
 687         }
 688
 689         cmd->len = cpu_to_le16(buf_len);
 690         cmd->template_type = template_id;
 691         cmd->enabled_rates = cpu_to_le32(wl->conf.tx.rc_conf.enabled_rates);
 692         cmd->short_retry_limit = wl->conf.tx.rc_conf.short_retry_limit;
 693         cmd->long_retry_limit = wl->conf.tx.rc_conf.long_retry_limit;
 694
 695         if (buf)
 696                 memcpy(cmd->template_data, buf, buf_len);
 697
 698         ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
 699         if (ret < 0) {
 700                 wl1271_warning("cmd set_template failed: %d", ret);
 701                 goto out_free;
 702         }
 703
 704 out_free:
 705         kfree(cmd);
 706
 707 out:
 708         return ret;
 709 }
 710
 711 int wl1271_cmd_build_null_data(struct wl1271 *wl)
 712 {
 713         struct sk_buff *skb = NULL;
 714         int size;
 715         void *ptr;
 716         int ret = -ENOMEM;
 717
 718
 719         if (wl->bss_type == BSS_TYPE_IBSS) {
 720                 size = sizeof(struct wl12xx_null_data_template);
 721                 ptr = NULL;
 722         } else {
 723                 skb = ieee80211_nullfunc_get(wl->hw, wl->vif);
 724                 if (!skb)
 725                         goto out;
 726                 size = skb->len;
 727                 ptr = skb->data;
 728         }
 729
 730         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, ptr, size);
 731
 732 out:
 733         dev_kfree_skb(skb);
 734         if (ret)
 735                 wl1271_warning("cmd buld null data failed %d", ret);
 736
 737         return ret;
 738
 739 }
 740
 741 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, u16 aid)
 742 {
 743         struct sk_buff *skb;
 744         int ret = 0;
 745
 746         skb = ieee80211_pspoll_get(wl->hw, wl->vif);
 747         if (!skb)
 748                 goto out;
 749
 750         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, skb->data,
 751                                       skb->len);
 752
 753 out:
 754         dev_kfree_skb(skb);
 755         return ret;
 756 }
 757
 758 int wl1271_cmd_build_probe_req(struct wl1271 *wl,
 759                                const u8 *ssid, size_t ssid_len,
 760                                const u8 *ie, size_t ie_len, u8 band)
 761 {
 762         struct sk_buff *skb;
 763         int ret;
 764
 765         skb = ieee80211_probereq_get(wl->hw, wl->vif, ssid, ssid_len,
 766                                      ie, ie_len);
 767         if (!skb) {
 768                 ret = -ENOMEM;
 769                 goto out;
 770         }
 771
 772         wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len);
 773
 774         if (band == IEEE80211_BAND_2GHZ)
 775                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 776                                               skb->data, skb->len);
 777         else
 778                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
 779                                               skb->data, skb->len);
 780
 781 out:
 782         dev_kfree_skb(skb);
 783         return ret;
 784 }
 785
 786 int wl1271_build_qos_null_data(struct wl1271 *wl)
 787 {
 788         struct ieee80211_qos_hdr template;
 789
 790         memset(&template, 0, sizeof(template));
 791
 792         memcpy(template.addr1, wl->bssid, ETH_ALEN);
 793         memcpy(template.addr2, wl->mac_addr, ETH_ALEN);
 794         memcpy(template.addr3, wl->bssid, ETH_ALEN);
 795
 796         template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 797                                              IEEE80211_STYPE_QOS_NULLFUNC |
 798                                              IEEE80211_FCTL_TODS);
 799
 800         /* FIXME: not sure what priority to use here */
 801         template.qos_ctrl = cpu_to_le16(0);
 802
 803         return wl1271_cmd_template_set(wl, CMD_TEMPL_QOS_NULL_DATA, &template,
 804                                        sizeof(template));
 805 }
 806
 807 int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id)
 808 {
 809         struct wl1271_cmd_set_keys *cmd;
 810         int ret = 0;
 811
 812         wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
 813
 814         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 815         if (!cmd) {
 816                 ret = -ENOMEM;
 817                 goto out;
 818         }
 819
 820         cmd->id = id;
 821         cmd->key_action = cpu_to_le16(KEY_SET_ID);
 822         cmd->key_type = KEY_WEP;
 823
 824         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 825         if (ret < 0) {
 826                 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
 827                 goto out;
 828         }
 829
 830 out:
 831         kfree(cmd);
 832
 833         return ret;
 834 }
 835
 836 int wl1271_cmd_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
 837                        u8 key_size, const u8 *key, const u8 *addr,
 838                        u32 tx_seq_32, u16 tx_seq_16)
 839 {
 840         struct wl1271_cmd_set_keys *cmd;
 841         int ret = 0;
 842
 843         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 844         if (!cmd) {
 845                 ret = -ENOMEM;
 846                 goto out;
 847         }
 848
 849         if (key_type != KEY_WEP)
 850                 memcpy(cmd->addr, addr, ETH_ALEN);
 851
 852         cmd->key_action = cpu_to_le16(action);
 853         cmd->key_size = key_size;
 854         cmd->key_type = key_type;
 855
 856         cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
 857         cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
 858
 859         /* we have only one SSID profile */
 860         cmd->ssid_profile = 0;
 861
 862         cmd->id = id;
 863
 864         if (key_type == KEY_TKIP) {
 865                 /*
 866                  * We get the key in the following form:
 867                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
 868                  * but the target is expecting:
 869                  * TKIP - RX MIC - TX MIC
 870                  */
 871                 memcpy(cmd->key, key, 16);
 872                 memcpy(cmd->key + 16, key + 24, 8);
 873                 memcpy(cmd->key + 24, key + 16, 8);
 874
 875         } else {
 876                 memcpy(cmd->key, key, key_size);
 877         }
 878
 879         wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
 880
 881         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 882         if (ret < 0) {
 883                 wl1271_warning("could not set keys");
 884         goto out;
 885         }
 886
 887 out:
 888         kfree(cmd);
 889
 890         return ret;
 891 }
 892
 893 int wl1271_cmd_disconnect(struct wl1271 *wl)
 894 {
 895         struct wl1271_cmd_disconnect *cmd;
 896         int ret = 0;
 897
 898         wl1271_debug(DEBUG_CMD, "cmd disconnect");
 899
 900         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 901         if (!cmd) {
 902                 ret = -ENOMEM;
 903                 goto out;
 904         }
 905
 906         cmd->rx_config_options = cpu_to_le32(wl->rx_config);
 907         cmd->rx_filter_options = cpu_to_le32(wl->rx_filter);
 908         /* disconnect reason is not used in immediate disconnections */
 909         cmd->type = DISCONNECT_IMMEDIATE;
 910
 911         ret = wl1271_cmd_send(wl, CMD_DISCONNECT, cmd, sizeof(*cmd), 0);
 912         if (ret < 0) {
 913                 wl1271_error("failed to send disconnect command");
 914                 goto out_free;
 915         }
 916
 917 out_free:
 918         kfree(cmd);
 919
 920 out:
 921         return ret;
 922 }