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/slab.h>
  30
  31 #include "wl1271.h"
  32 #include "wl1271_reg.h"
  33 #include "wl1271_spi.h"
  34 #include "wl1271_io.h"
  35 #include "wl1271_acx.h"
  36 #include "wl12xx_80211.h"
  37 #include "wl1271_cmd.h"
  38
  39 /*
  40  * send command to firmware
  41  *
  42  * @wl: wl struct
  43  * @id: command id
  44  * @buf: buffer containing the command, must work with dma
  45  * @len: length of the buffer
  46  */
  47 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
  48                     size_t res_len)
  49 {
  50         struct wl1271_cmd_header *cmd;
  51         unsigned long timeout;
  52         u32 intr;
  53         int ret = 0;
  54         u16 status;
  55
  56         cmd = buf;
  57         cmd->id = cpu_to_le16(id);
  58         cmd->status = 0;
  59
  60         WARN_ON(len % 4 != 0);
  61
  62         wl1271_write(wl, wl->cmd_box_addr, buf, len, false);
  63
  64         wl1271_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
  65
  66         timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
  67
  68         intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  69         while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
  70                 if (time_after(jiffies, timeout)) {
  71                         wl1271_error("command complete timeout");
  72                         ret = -ETIMEDOUT;
  73                         goto out;
  74                 }
  75
  76                 msleep(1);
  77
  78                 intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  79         }
  80
  81         /* read back the status code of the command */
  82         if (res_len == 0)
  83                 res_len = sizeof(struct wl1271_cmd_header);
  84         wl1271_read(wl, wl->cmd_box_addr, cmd, res_len, false);
  85
  86         status = le16_to_cpu(cmd->status);
  87         if (status != CMD_STATUS_SUCCESS) {
  88                 wl1271_error("command execute failure %d", status);
  89                 ret = -EIO;
  90         }
  91
  92         wl1271_write32(wl, ACX_REG_INTERRUPT_ACK,
  93                        WL1271_ACX_INTR_CMD_COMPLETE);
  94
  95 out:
  96         return ret;
  97 }
  98
  99 static int wl1271_cmd_cal_channel_tune(struct wl1271 *wl)
 100 {
 101         struct wl1271_cmd_cal_channel_tune *cmd;
 102         int ret = 0;
 103
 104         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 105         if (!cmd)
 106                 return -ENOMEM;
 107
 108         cmd->test.id = TEST_CMD_CHANNEL_TUNE;
 109
 110         cmd->band = WL1271_CHANNEL_TUNE_BAND_2_4;
 111         /* set up any channel, 7 is in the middle of the range */
 112         cmd->channel = 7;
 113
 114         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
 115         if (ret < 0)
 116                 wl1271_warning("TEST_CMD_CHANNEL_TUNE failed");
 117
 118         kfree(cmd);
 119         return ret;
 120 }
 121
 122 static int wl1271_cmd_cal_update_ref_point(struct wl1271 *wl)
 123 {
 124         struct wl1271_cmd_cal_update_ref_point *cmd;
 125         int ret = 0;
 126
 127         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 128         if (!cmd)
 129                 return -ENOMEM;
 130
 131         cmd->test.id = TEST_CMD_UPDATE_PD_REFERENCE_POINT;
 132
 133         /* FIXME: still waiting for the correct values */
 134         cmd->ref_power    = 0;
 135         cmd->ref_detector = 0;
 136
 137         cmd->sub_band     = WL1271_PD_REFERENCE_POINT_BAND_B_G;
 138
 139         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
 140         if (ret < 0)
 141                 wl1271_warning("TEST_CMD_UPDATE_PD_REFERENCE_POINT failed");
 142
 143         kfree(cmd);
 144         return ret;
 145 }
 146
 147 static int wl1271_cmd_cal_p2g(struct wl1271 *wl)
 148 {
 149         struct wl1271_cmd_cal_p2g *cmd;
 150         int ret = 0;
 151
 152         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 153         if (!cmd)
 154                 return -ENOMEM;
 155
 156         cmd->test.id = TEST_CMD_P2G_CAL;
 157
 158         cmd->sub_band_mask = WL1271_CAL_P2G_BAND_B_G;
 159
 160         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
 161         if (ret < 0)
 162                 wl1271_warning("TEST_CMD_P2G_CAL failed");
 163
 164         kfree(cmd);
 165         return ret;
 166 }
 167
 168 static int wl1271_cmd_cal(struct wl1271 *wl)
 169 {
 170         /*
 171          * FIXME: we must make sure that we're not sleeping when calibration
 172          * is done
 173          */
 174         int ret;
 175
 176         wl1271_notice("performing tx calibration");
 177
 178         ret = wl1271_cmd_cal_channel_tune(wl);
 179         if (ret < 0)
 180                 return ret;
 181
 182         ret = wl1271_cmd_cal_update_ref_point(wl);
 183         if (ret < 0)
 184                 return ret;
 185
 186         ret = wl1271_cmd_cal_p2g(wl);
 187         if (ret < 0)
 188                 return ret;
 189
 190         return ret;
 191 }
 192
 193 int wl1271_cmd_general_parms(struct wl1271 *wl)
 194 {
 195         struct wl1271_general_parms_cmd *gen_parms;
 196         int ret;
 197
 198         if (!wl->nvs)
 199                 return -ENODEV;
 200
 201         gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL);
 202         if (!gen_parms)
 203                 return -ENOMEM;
 204
 205         gen_parms->test.id = TEST_CMD_INI_FILE_GENERAL_PARAM;
 206
 207         memcpy(gen_parms->params, wl->nvs->general_params,
 208                WL1271_NVS_GENERAL_PARAMS_SIZE);
 209
 210         ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), 0);
 211         if (ret < 0)
 212                 wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
 213
 214         kfree(gen_parms);
 215         return ret;
 216 }
 217
 218 int wl1271_cmd_radio_parms(struct wl1271 *wl)
 219 {
 220         struct wl1271_radio_parms_cmd *radio_parms;
 221         struct conf_radio_parms *rparam = &wl->conf.init.radioparam;
 222         int ret;
 223
 224         if (!wl->nvs)
 225                 return -ENODEV;
 226
 227         radio_parms = kzalloc(sizeof(*radio_parms), GFP_KERNEL);
 228         if (!radio_parms)
 229                 return -ENOMEM;
 230
 231         radio_parms->test.id = TEST_CMD_INI_FILE_RADIO_PARAM;
 232
 233         memcpy(radio_parms->stat_radio_params, wl->nvs->stat_radio_params,
 234                WL1271_NVS_STAT_RADIO_PARAMS_SIZE);
 235         memcpy(radio_parms->dyn_radio_params,
 236                wl->nvs->dyn_radio_params[rparam->fem],
 237                WL1271_NVS_DYN_RADIO_PARAMS_SIZE);
 238
 239         /* FIXME: current NVS is missing 5GHz parameters */
 240
 241         wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_RADIO_PARAM: ",
 242                     radio_parms, sizeof(*radio_parms));
 243
 244         ret = wl1271_cmd_test(wl, radio_parms, sizeof(*radio_parms), 0);
 245         if (ret < 0)
 246                 wl1271_warning("CMD_INI_FILE_RADIO_PARAM failed");
 247
 248         kfree(radio_parms);
 249         return ret;
 250 }
 251
 252 int wl1271_cmd_join(struct wl1271 *wl)
 253 {
 254         static bool do_cal = true;
 255         struct wl1271_cmd_join *join;
 256         int ret, i;
 257         u8 *bssid;
 258
 259         /* FIXME: remove when we get calibration from the factory */
 260         if (do_cal) {
 261                 ret = wl1271_cmd_cal(wl);
 262                 if (ret < 0)
 263                         wl1271_warning("couldn't calibrate");
 264                 else
 265                         do_cal = false;
 266         }
 267
 268         join = kzalloc(sizeof(*join), GFP_KERNEL);
 269         if (!join) {
 270                 ret = -ENOMEM;
 271                 goto out;
 272         }
 273
 274         wl1271_debug(DEBUG_CMD, "cmd join");
 275
 276         /* Reverse order BSSID */
 277         bssid = (u8 *) &join->bssid_lsb;
 278         for (i = 0; i < ETH_ALEN; i++)
 279                 bssid[i] = wl->bssid[ETH_ALEN - i - 1];
 280
 281         join->rx_config_options = cpu_to_le32(wl->rx_config);
 282         join->rx_filter_options = cpu_to_le32(wl->rx_filter);
 283         join->bss_type = wl->bss_type;
 284
 285         /*
 286          * FIXME: disable temporarily all filters because after commit
 287          * 9cef8737 "mac80211: fix managed mode BSSID handling" broke
 288          * association. The filter logic needs to be implemented properly
 289          * and once that is done, this hack can be removed.
 290          */
 291         join->rx_config_options = cpu_to_le32(0);
 292         join->rx_filter_options = cpu_to_le32(WL1271_DEFAULT_RX_FILTER);
 293
 294         if (wl->band == IEEE80211_BAND_2GHZ)
 295                 join->basic_rate_set = cpu_to_le32(CONF_HW_BIT_RATE_1MBPS   |
 296                                                    CONF_HW_BIT_RATE_2MBPS   |
 297                                                    CONF_HW_BIT_RATE_5_5MBPS |
 298                                                    CONF_HW_BIT_RATE_11MBPS);
 299         else {
 300                 join->bss_type |= WL1271_JOIN_CMD_BSS_TYPE_5GHZ;
 301                 join->basic_rate_set = cpu_to_le32(CONF_HW_BIT_RATE_6MBPS  |
 302                                                    CONF_HW_BIT_RATE_12MBPS |
 303                                                    CONF_HW_BIT_RATE_24MBPS);
 304         }
 305
 306         join->beacon_interval = cpu_to_le16(WL1271_DEFAULT_BEACON_INT);
 307         join->dtim_interval = WL1271_DEFAULT_DTIM_PERIOD;
 308
 309         join->channel = wl->channel;
 310         join->ssid_len = wl->ssid_len;
 311         memcpy(join->ssid, wl->ssid, wl->ssid_len);
 312         join->ctrl = WL1271_JOIN_CMD_CTRL_TX_FLUSH;
 313
 314         /* increment the session counter */
 315         wl->session_counter++;
 316         if (wl->session_counter >= SESSION_COUNTER_MAX)
 317                 wl->session_counter = 0;
 318
 319         join->ctrl |= wl->session_counter << WL1271_JOIN_CMD_TX_SESSION_OFFSET;
 320
 321         /* reset TX security counters */
 322         wl->tx_security_last_seq = 0;
 323         wl->tx_security_seq_16 = 0;
 324         wl->tx_security_seq_32 = 0;
 325
 326         ret = wl1271_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join), 0);
 327         if (ret < 0) {
 328                 wl1271_error("failed to initiate cmd join");
 329                 goto out_free;
 330         }
 331
 332         /*
 333          * ugly hack: we should wait for JOIN_EVENT_COMPLETE_ID but to
 334          * simplify locking we just sleep instead, for now
 335          */
 336         msleep(10);
 337
 338 out_free:
 339         kfree(join);
 340
 341 out:
 342         return ret;
 343 }
 344
 345 /**
 346  * send test command to firmware
 347  *
 348  * @wl: wl struct
 349  * @buf: buffer containing the command, with all headers, must work with dma
 350  * @len: length of the buffer
 351  * @answer: is answer needed
 352  */
 353 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
 354 {
 355         int ret;
 356         size_t res_len = 0;
 357
 358         wl1271_debug(DEBUG_CMD, "cmd test");
 359
 360         if (answer)
 361                 res_len = buf_len;
 362
 363         ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
 364
 365         if (ret < 0) {
 366                 wl1271_warning("TEST command failed");
 367                 return ret;
 368         }
 369
 370         return ret;
 371 }
 372
 373 /**
 374  * read acx from firmware
 375  *
 376  * @wl: wl struct
 377  * @id: acx id
 378  * @buf: buffer for the response, including all headers, must work with dma
 379  * @len: lenght of buf
 380  */
 381 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
 382 {
 383         struct acx_header *acx = buf;
 384         int ret;
 385
 386         wl1271_debug(DEBUG_CMD, "cmd interrogate");
 387
 388         acx->id = cpu_to_le16(id);
 389
 390         /* payload length, does not include any headers */
 391         acx->len = cpu_to_le16(len - sizeof(*acx));
 392
 393         ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len);
 394         if (ret < 0)
 395                 wl1271_error("INTERROGATE command failed");
 396
 397         return ret;
 398 }
 399
 400 /**
 401  * write acx value to firmware
 402  *
 403  * @wl: wl struct
 404  * @id: acx id
 405  * @buf: buffer containing acx, including all headers, must work with dma
 406  * @len: length of buf
 407  */
 408 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
 409 {
 410         struct acx_header *acx = buf;
 411         int ret;
 412
 413         wl1271_debug(DEBUG_CMD, "cmd configure");
 414
 415         acx->id = cpu_to_le16(id);
 416
 417         /* payload length, does not include any headers */
 418         acx->len = cpu_to_le16(len - sizeof(*acx));
 419
 420         ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0);
 421         if (ret < 0) {
 422                 wl1271_warning("CONFIGURE command NOK");
 423                 return ret;
 424         }
 425
 426         return 0;
 427 }
 428
 429 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
 430 {
 431         struct cmd_enabledisable_path *cmd;
 432         int ret;
 433         u16 cmd_rx, cmd_tx;
 434
 435         wl1271_debug(DEBUG_CMD, "cmd data path");
 436
 437         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 438         if (!cmd) {
 439                 ret = -ENOMEM;
 440                 goto out;
 441         }
 442
 443         /* the channel here is only used for calibration, so hardcoded to 1 */
 444         cmd->channel = 1;
 445
 446         if (enable) {
 447                 cmd_rx = CMD_ENABLE_RX;
 448                 cmd_tx = CMD_ENABLE_TX;
 449         } else {
 450                 cmd_rx = CMD_DISABLE_RX;
 451                 cmd_tx = CMD_DISABLE_TX;
 452         }
 453
 454         ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
 455         if (ret < 0) {
 456                 wl1271_error("rx %s cmd for channel %d failed",
 457                              enable ? "start" : "stop", cmd->channel);
 458                 goto out;
 459         }
 460
 461         wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
 462                      enable ? "start" : "stop", cmd->channel);
 463
 464         ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
 465         if (ret < 0) {
 466                 wl1271_error("tx %s cmd for channel %d failed",
 467                              enable ? "start" : "stop", cmd->channel);
 468                 return ret;
 469         }
 470
 471         wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
 472                      enable ? "start" : "stop", cmd->channel);
 473
 474 out:
 475         kfree(cmd);
 476         return ret;
 477 }
 478
 479 int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode, bool send)
 480 {
 481         struct wl1271_cmd_ps_params *ps_params = NULL;
 482         int ret = 0;
 483
 484         /* FIXME: this should be in ps.c */
 485         ret = wl1271_acx_wake_up_conditions(wl);
 486         if (ret < 0) {
 487                 wl1271_error("couldn't set wake up conditions");
 488                 goto out;
 489         }
 490
 491         wl1271_debug(DEBUG_CMD, "cmd set ps mode");
 492
 493         ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
 494         if (!ps_params) {
 495                 ret = -ENOMEM;
 496                 goto out;
 497         }
 498
 499         ps_params->ps_mode = ps_mode;
 500         ps_params->send_null_data = send;
 501         ps_params->retries = 5;
 502         ps_params->hang_over_period = 128;
 503         ps_params->null_data_rate = cpu_to_le32(1); /* 1 Mbps */
 504
 505         ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
 506                               sizeof(*ps_params), 0);
 507         if (ret < 0) {
 508                 wl1271_error("cmd set_ps_mode failed");
 509                 goto out;
 510         }
 511
 512 out:
 513         kfree(ps_params);
 514         return ret;
 515 }
 516
 517 int wl1271_cmd_read_memory(struct wl1271 *wl, u32 addr, void *answer,
 518                            size_t len)
 519 {
 520         struct cmd_read_write_memory *cmd;
 521         int ret = 0;
 522
 523         wl1271_debug(DEBUG_CMD, "cmd read memory");
 524
 525         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 526         if (!cmd) {
 527                 ret = -ENOMEM;
 528                 goto out;
 529         }
 530
 531         WARN_ON(len > MAX_READ_SIZE);
 532         len = min_t(size_t, len, MAX_READ_SIZE);
 533
 534         cmd->addr = cpu_to_le32(addr);
 535         cmd->size = cpu_to_le32(len);
 536
 537         ret = wl1271_cmd_send(wl, CMD_READ_MEMORY, cmd, sizeof(*cmd),
 538                               sizeof(*cmd));
 539         if (ret < 0) {
 540                 wl1271_error("read memory command failed: %d", ret);
 541                 goto out;
 542         }
 543
 544         /* the read command got in */
 545         memcpy(answer, cmd->value, len);
 546
 547 out:
 548         kfree(cmd);
 549         return ret;
 550 }
 551
 552 int wl1271_cmd_scan(struct wl1271 *wl, u8 *ssid, size_t len,
 553                     u8 active_scan, u8 high_prio, u8 band,
 554                     u8 probe_requests)
 555 {
 556
 557         struct wl1271_cmd_trigger_scan_to *trigger = NULL;
 558         struct wl1271_cmd_scan *params = NULL;
 559         struct ieee80211_channel *channels;
 560         int i, j, n_ch, ret;
 561         u16 scan_options = 0;
 562         u8 ieee_band;
 563
 564         if (band == WL1271_SCAN_BAND_2_4_GHZ)
 565                 ieee_band = IEEE80211_BAND_2GHZ;
 566         else if (band == WL1271_SCAN_BAND_DUAL && wl1271_11a_enabled())
 567                 ieee_band = IEEE80211_BAND_2GHZ;
 568         else if (band == WL1271_SCAN_BAND_5_GHZ && wl1271_11a_enabled())
 569                 ieee_band = IEEE80211_BAND_5GHZ;
 570         else
 571                 return -EINVAL;
 572
 573         if (wl->hw->wiphy->bands[ieee_band]->channels == NULL)
 574                 return -EINVAL;
 575
 576         channels = wl->hw->wiphy->bands[ieee_band]->channels;
 577         n_ch = wl->hw->wiphy->bands[ieee_band]->n_channels;
 578
 579         if (test_bit(WL1271_FLAG_SCANNING, &wl->flags))
 580                 return -EINVAL;
 581
 582         params = kzalloc(sizeof(*params), GFP_KERNEL);
 583         if (!params)
 584                 return -ENOMEM;
 585
 586         params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
 587         params->params.rx_filter_options =
 588                 cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
 589
 590         if (!active_scan)
 591                 scan_options |= WL1271_SCAN_OPT_PASSIVE;
 592         if (high_prio)
 593                 scan_options |= WL1271_SCAN_OPT_PRIORITY_HIGH;
 594         params->params.scan_options = cpu_to_le16(scan_options);
 595
 596         params->params.num_probe_requests = probe_requests;
 597         /* Let the fw autodetect suitable tx_rate for probes */
 598         params->params.tx_rate = 0;
 599         params->params.tid_trigger = 0;
 600         params->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
 601
 602         if (band == WL1271_SCAN_BAND_DUAL)
 603                 params->params.band = WL1271_SCAN_BAND_2_4_GHZ;
 604         else
 605                 params->params.band = band;
 606
 607         for (i = 0, j = 0; i < n_ch && i < WL1271_SCAN_MAX_CHANNELS; i++) {
 608                 if (!(channels[i].flags & IEEE80211_CHAN_DISABLED)) {
 609                         params->channels[j].min_duration =
 610                                 cpu_to_le32(WL1271_SCAN_CHAN_MIN_DURATION);
 611                         params->channels[j].max_duration =
 612                                 cpu_to_le32(WL1271_SCAN_CHAN_MAX_DURATION);
 613                         memset(&params->channels[j].bssid_lsb, 0xff, 4);
 614                         memset(&params->channels[j].bssid_msb, 0xff, 2);
 615                         params->channels[j].early_termination = 0;
 616                         params->channels[j].tx_power_att =
 617                                 WL1271_SCAN_CURRENT_TX_PWR;
 618                         params->channels[j].channel = channels[i].hw_value;
 619                         j++;
 620                 }
 621         }
 622
 623         params->params.num_channels = j;
 624
 625         if (len && ssid) {
 626                 params->params.ssid_len = len;
 627                 memcpy(params->params.ssid, ssid, len);
 628         }
 629
 630         ret = wl1271_cmd_build_probe_req(wl, ssid, len, ieee_band);
 631         if (ret < 0) {
 632                 wl1271_error("PROBE request template failed");
 633                 goto out;
 634         }
 635
 636         trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
 637         if (!trigger) {
 638                 ret = -ENOMEM;
 639                 goto out;
 640         }
 641
 642         /* disable the timeout */
 643         trigger->timeout = 0;
 644
 645         ret = wl1271_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger,
 646                               sizeof(*trigger), 0);
 647         if (ret < 0) {
 648                 wl1271_error("trigger scan to failed for hw scan");
 649                 goto out;
 650         }
 651
 652         wl1271_dump(DEBUG_SCAN, "SCAN: ", params, sizeof(*params));
 653
 654         set_bit(WL1271_FLAG_SCANNING, &wl->flags);
 655         if (wl1271_11a_enabled()) {
 656                 wl->scan.state = band;
 657                 if (band == WL1271_SCAN_BAND_DUAL) {
 658                         wl->scan.active = active_scan;
 659                         wl->scan.high_prio = high_prio;
 660                         wl->scan.probe_requests = probe_requests;
 661                         if (len && ssid) {
 662                                 wl->scan.ssid_len = len;
 663                                 memcpy(wl->scan.ssid, ssid, len);
 664                         } else
 665                                 wl->scan.ssid_len = 0;
 666                 }
 667         }
 668
 669         ret = wl1271_cmd_send(wl, CMD_SCAN, params, sizeof(*params), 0);
 670         if (ret < 0) {
 671                 wl1271_error("SCAN failed");
 672                 clear_bit(WL1271_FLAG_SCANNING, &wl->flags);
 673                 goto out;
 674         }
 675
 676 out:
 677         kfree(params);
 678         return ret;
 679 }
 680
 681 int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
 682                             void *buf, size_t buf_len)
 683 {
 684         struct wl1271_cmd_template_set *cmd;
 685         int ret = 0;
 686
 687         wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
 688
 689         WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
 690         buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
 691
 692         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 693         if (!cmd) {
 694                 ret = -ENOMEM;
 695                 goto out;
 696         }
 697
 698         cmd->len = cpu_to_le16(buf_len);
 699         cmd->template_type = template_id;
 700         cmd->enabled_rates = cpu_to_le32(wl->conf.tx.rc_conf.enabled_rates);
 701         cmd->short_retry_limit = wl->conf.tx.rc_conf.short_retry_limit;
 702         cmd->long_retry_limit = wl->conf.tx.rc_conf.long_retry_limit;
 703
 704         if (buf)
 705                 memcpy(cmd->template_data, buf, buf_len);
 706
 707         ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
 708         if (ret < 0) {
 709                 wl1271_warning("cmd set_template failed: %d", ret);
 710                 goto out_free;
 711         }
 712
 713 out_free:
 714         kfree(cmd);
 715
 716 out:
 717         return ret;
 718 }
 719
 720 static int wl1271_build_basic_rates(u8 *rates, u8 band)
 721 {
 722         u8 index = 0;
 723
 724         if (band == IEEE80211_BAND_2GHZ) {
 725                 rates[index++] =
 726                         IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
 727                 rates[index++] =
 728                         IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
 729                 rates[index++] =
 730                         IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
 731                 rates[index++] =
 732                         IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
 733         } else if (band == IEEE80211_BAND_5GHZ) {
 734                 rates[index++] =
 735                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_6MB;
 736                 rates[index++] =
 737                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_12MB;
 738                 rates[index++] =
 739                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB;
 740         } else {
 741                 wl1271_error("build_basic_rates invalid band: %d", band);
 742         }
 743
 744         return index;
 745 }
 746
 747 static int wl1271_build_extended_rates(u8 *rates, u8 band)
 748 {
 749         u8 index = 0;
 750
 751         if (band == IEEE80211_BAND_2GHZ) {
 752                 rates[index++] = IEEE80211_OFDM_RATE_6MB;
 753                 rates[index++] = IEEE80211_OFDM_RATE_9MB;
 754                 rates[index++] = IEEE80211_OFDM_RATE_12MB;
 755                 rates[index++] = IEEE80211_OFDM_RATE_18MB;
 756                 rates[index++] = IEEE80211_OFDM_RATE_24MB;
 757                 rates[index++] = IEEE80211_OFDM_RATE_36MB;
 758                 rates[index++] = IEEE80211_OFDM_RATE_48MB;
 759                 rates[index++] = IEEE80211_OFDM_RATE_54MB;
 760         } else if (band == IEEE80211_BAND_5GHZ) {
 761                 rates[index++] =
 762                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_9MB;
 763                 rates[index++] =
 764                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_18MB;
 765                 rates[index++] =
 766                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB;
 767                 rates[index++] =
 768                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_36MB;
 769                 rates[index++] =
 770                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_48MB;
 771                 rates[index++] =
 772                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_54MB;
 773         } else {
 774                 wl1271_error("build_basic_rates invalid band: %d", band);
 775         }
 776
 777         return index;
 778 }
 779
 780 int wl1271_cmd_build_null_data(struct wl1271 *wl)
 781 {
 782         struct wl12xx_null_data_template template;
 783
 784         if (!is_zero_ether_addr(wl->bssid)) {
 785                 memcpy(template.header.da, wl->bssid, ETH_ALEN);
 786                 memcpy(template.header.bssid, wl->bssid, ETH_ALEN);
 787         } else {
 788                 memset(template.header.da, 0xff, ETH_ALEN);
 789                 memset(template.header.bssid, 0xff, ETH_ALEN);
 790         }
 791
 792         memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
 793         template.header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_DATA |
 794                                                 IEEE80211_STYPE_NULLFUNC |
 795                                                 IEEE80211_FCTL_TODS);
 796
 797         return wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, &template,
 798                                        sizeof(template));
 799
 800 }
 801
 802 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, u16 aid)
 803 {
 804         struct wl12xx_ps_poll_template template;
 805
 806         memcpy(template.bssid, wl->bssid, ETH_ALEN);
 807         memcpy(template.ta, wl->mac_addr, ETH_ALEN);
 808
 809         /* aid in PS-Poll has its two MSBs each set to 1 */
 810         template.aid = cpu_to_le16(1 << 15 | 1 << 14 | aid);
 811
 812         template.fc = cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 813
 814         return wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, &template,
 815                                        sizeof(template));
 816
 817 }
 818
 819 int wl1271_cmd_build_probe_req(struct wl1271 *wl, u8 *ssid, size_t ssid_len,
 820                                u8 band)
 821 {
 822         struct wl12xx_probe_req_template template;
 823         struct wl12xx_ie_rates *rates;
 824         char *ptr;
 825         u16 size;
 826         int ret;
 827
 828         ptr = (char *)&template;
 829         size = sizeof(struct ieee80211_header);
 830
 831         memset(template.header.da, 0xff, ETH_ALEN);
 832         memset(template.header.bssid, 0xff, ETH_ALEN);
 833         memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
 834         template.header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
 835
 836         /* IEs */
 837         /* SSID */
 838         template.ssid.header.id = WLAN_EID_SSID;
 839         template.ssid.header.len = ssid_len;
 840         if (ssid_len && ssid)
 841                 memcpy(template.ssid.ssid, ssid, ssid_len);
 842         size += sizeof(struct wl12xx_ie_header) + ssid_len;
 843         ptr += size;
 844
 845         /* Basic Rates */
 846         rates = (struct wl12xx_ie_rates *)ptr;
 847         rates->header.id = WLAN_EID_SUPP_RATES;
 848         rates->header.len = wl1271_build_basic_rates(rates->rates, band);
 849         size += sizeof(struct wl12xx_ie_header) + rates->header.len;
 850         ptr += sizeof(struct wl12xx_ie_header) + rates->header.len;
 851
 852         /* Extended rates */
 853         rates = (struct wl12xx_ie_rates *)ptr;
 854         rates->header.id = WLAN_EID_EXT_SUPP_RATES;
 855         rates->header.len = wl1271_build_extended_rates(rates->rates, band);
 856         size += sizeof(struct wl12xx_ie_header) + rates->header.len;
 857
 858         wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", &template, size);
 859
 860         if (band == IEEE80211_BAND_2GHZ)
 861                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 862                                               &template, size);
 863         else
 864                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
 865                                               &template, size);
 866         return ret;
 867 }
 868
 869 int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id)
 870 {
 871         struct wl1271_cmd_set_keys *cmd;
 872         int ret = 0;
 873
 874         wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
 875
 876         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 877         if (!cmd) {
 878                 ret = -ENOMEM;
 879                 goto out;
 880         }
 881
 882         cmd->id = id;
 883         cmd->key_action = cpu_to_le16(KEY_SET_ID);
 884         cmd->key_type = KEY_WEP;
 885
 886         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 887         if (ret < 0) {
 888                 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
 889                 goto out;
 890         }
 891
 892 out:
 893         kfree(cmd);
 894
 895         return ret;
 896 }
 897
 898 int wl1271_cmd_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
 899                        u8 key_size, const u8 *key, const u8 *addr,
 900                        u32 tx_seq_32, u16 tx_seq_16)
 901 {
 902         struct wl1271_cmd_set_keys *cmd;
 903         int ret = 0;
 904
 905         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 906         if (!cmd) {
 907                 ret = -ENOMEM;
 908                 goto out;
 909         }
 910
 911         if (key_type != KEY_WEP)
 912                 memcpy(cmd->addr, addr, ETH_ALEN);
 913
 914         cmd->key_action = cpu_to_le16(action);
 915         cmd->key_size = key_size;
 916         cmd->key_type = key_type;
 917
 918         cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
 919         cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
 920
 921         /* we have only one SSID profile */
 922         cmd->ssid_profile = 0;
 923
 924         cmd->id = id;
 925
 926         if (key_type == KEY_TKIP) {
 927                 /*
 928                  * We get the key in the following form:
 929                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
 930                  * but the target is expecting:
 931                  * TKIP - RX MIC - TX MIC
 932                  */
 933                 memcpy(cmd->key, key, 16);
 934                 memcpy(cmd->key + 16, key + 24, 8);
 935                 memcpy(cmd->key + 24, key + 16, 8);
 936
 937         } else {
 938                 memcpy(cmd->key, key, key_size);
 939         }
 940
 941         wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
 942
 943         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 944         if (ret < 0) {
 945                 wl1271_warning("could not set keys");
 946         goto out;
 947         }
 948
 949 out:
 950         kfree(cmd);
 951
 952         return ret;
 953 }
 954
 955 int wl1271_cmd_disconnect(struct wl1271 *wl)
 956 {
 957         struct wl1271_cmd_disconnect *cmd;
 958         int ret = 0;
 959
 960         wl1271_debug(DEBUG_CMD, "cmd disconnect");
 961
 962         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 963         if (!cmd) {
 964                 ret = -ENOMEM;
 965                 goto out;
 966         }
 967
 968         cmd->rx_config_options = cpu_to_le32(wl->rx_config);
 969         cmd->rx_filter_options = cpu_to_le32(wl->rx_filter);
 970         /* disconnect reason is not used in immediate disconnections */
 971         cmd->type = DISCONNECT_IMMEDIATE;
 972
 973         ret = wl1271_cmd_send(wl, CMD_DISCONNECT, cmd, sizeof(*cmd), 0);
 974         if (ret < 0) {
 975                 wl1271_error("failed to send disconnect command");
 976                 goto out_free;
 977         }
 978
 979 out_free:
 980         kfree(cmd);
 981
 982 out:
 983         return ret;
 984 }