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_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)
 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 = wl->bss_type;
 283
 284         /*
 285          * FIXME: disable temporarily all filters because after commit
 286          * 9cef8737 "mac80211: fix managed mode BSSID handling" broke
 287          * association. The filter logic needs to be implemented properly
 288          * and once that is done, this hack can be removed.
 289          */
 290         join->rx_config_options = cpu_to_le32(0);
 291         join->rx_filter_options = cpu_to_le32(WL1271_DEFAULT_RX_FILTER);
 292
 293         if (wl->band == IEEE80211_BAND_2GHZ)
 294                 join->basic_rate_set = cpu_to_le32(CONF_HW_BIT_RATE_1MBPS   |
 295                                                    CONF_HW_BIT_RATE_2MBPS   |
 296                                                    CONF_HW_BIT_RATE_5_5MBPS |
 297                                                    CONF_HW_BIT_RATE_11MBPS);
 298         else {
 299                 join->bss_type |= WL1271_JOIN_CMD_BSS_TYPE_5GHZ;
 300                 join->basic_rate_set = cpu_to_le32(CONF_HW_BIT_RATE_6MBPS  |
 301                                                    CONF_HW_BIT_RATE_12MBPS |
 302                                                    CONF_HW_BIT_RATE_24MBPS);
 303         }
 304
 305         join->beacon_interval = cpu_to_le16(WL1271_DEFAULT_BEACON_INT);
 306         join->dtim_interval = WL1271_DEFAULT_DTIM_PERIOD;
 307
 308         join->channel = wl->channel;
 309         join->ssid_len = wl->ssid_len;
 310         memcpy(join->ssid, wl->ssid, wl->ssid_len);
 311         join->ctrl = WL1271_JOIN_CMD_CTRL_TX_FLUSH;
 312
 313         /* increment the session counter */
 314         wl->session_counter++;
 315         if (wl->session_counter >= SESSION_COUNTER_MAX)
 316                 wl->session_counter = 0;
 317
 318         join->ctrl |= wl->session_counter << WL1271_JOIN_CMD_TX_SESSION_OFFSET;
 319
 320         /* reset TX security counters */
 321         wl->tx_security_last_seq = 0;
 322         wl->tx_security_seq_16 = 0;
 323         wl->tx_security_seq_32 = 0;
 324
 325         ret = wl1271_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join), 0);
 326         if (ret < 0) {
 327                 wl1271_error("failed to initiate cmd join");
 328                 goto out_free;
 329         }
 330
 331         /*
 332          * ugly hack: we should wait for JOIN_EVENT_COMPLETE_ID but to
 333          * simplify locking we just sleep instead, for now
 334          */
 335         msleep(10);
 336
 337 out_free:
 338         kfree(join);
 339
 340 out:
 341         return ret;
 342 }
 343
 344 /**
 345  * send test command to firmware
 346  *
 347  * @wl: wl struct
 348  * @buf: buffer containing the command, with all headers, must work with dma
 349  * @len: length of the buffer
 350  * @answer: is answer needed
 351  */
 352 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
 353 {
 354         int ret;
 355         size_t res_len = 0;
 356
 357         wl1271_debug(DEBUG_CMD, "cmd test");
 358
 359         if (answer)
 360                 res_len = buf_len;
 361
 362         ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
 363
 364         if (ret < 0) {
 365                 wl1271_warning("TEST command failed");
 366                 return ret;
 367         }
 368
 369         return ret;
 370 }
 371
 372 /**
 373  * read acx from firmware
 374  *
 375  * @wl: wl struct
 376  * @id: acx id
 377  * @buf: buffer for the response, including all headers, must work with dma
 378  * @len: lenght of buf
 379  */
 380 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
 381 {
 382         struct acx_header *acx = buf;
 383         int ret;
 384
 385         wl1271_debug(DEBUG_CMD, "cmd interrogate");
 386
 387         acx->id = cpu_to_le16(id);
 388
 389         /* payload length, does not include any headers */
 390         acx->len = cpu_to_le16(len - sizeof(*acx));
 391
 392         ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len);
 393         if (ret < 0)
 394                 wl1271_error("INTERROGATE command failed");
 395
 396         return ret;
 397 }
 398
 399 /**
 400  * write acx value to firmware
 401  *
 402  * @wl: wl struct
 403  * @id: acx id
 404  * @buf: buffer containing acx, including all headers, must work with dma
 405  * @len: length of buf
 406  */
 407 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
 408 {
 409         struct acx_header *acx = buf;
 410         int ret;
 411
 412         wl1271_debug(DEBUG_CMD, "cmd configure");
 413
 414         acx->id = cpu_to_le16(id);
 415
 416         /* payload length, does not include any headers */
 417         acx->len = cpu_to_le16(len - sizeof(*acx));
 418
 419         ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0);
 420         if (ret < 0) {
 421                 wl1271_warning("CONFIGURE command NOK");
 422                 return ret;
 423         }
 424
 425         return 0;
 426 }
 427
 428 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
 429 {
 430         struct cmd_enabledisable_path *cmd;
 431         int ret;
 432         u16 cmd_rx, cmd_tx;
 433
 434         wl1271_debug(DEBUG_CMD, "cmd data path");
 435
 436         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 437         if (!cmd) {
 438                 ret = -ENOMEM;
 439                 goto out;
 440         }
 441
 442         /* the channel here is only used for calibration, so hardcoded to 1 */
 443         cmd->channel = 1;
 444
 445         if (enable) {
 446                 cmd_rx = CMD_ENABLE_RX;
 447                 cmd_tx = CMD_ENABLE_TX;
 448         } else {
 449                 cmd_rx = CMD_DISABLE_RX;
 450                 cmd_tx = CMD_DISABLE_TX;
 451         }
 452
 453         ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
 454         if (ret < 0) {
 455                 wl1271_error("rx %s cmd for channel %d failed",
 456                              enable ? "start" : "stop", cmd->channel);
 457                 goto out;
 458         }
 459
 460         wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
 461                      enable ? "start" : "stop", cmd->channel);
 462
 463         ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
 464         if (ret < 0) {
 465                 wl1271_error("tx %s cmd for channel %d failed",
 466                              enable ? "start" : "stop", cmd->channel);
 467                 return ret;
 468         }
 469
 470         wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
 471                      enable ? "start" : "stop", cmd->channel);
 472
 473 out:
 474         kfree(cmd);
 475         return ret;
 476 }
 477
 478 int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode, bool send)
 479 {
 480         struct wl1271_cmd_ps_params *ps_params = NULL;
 481         int ret = 0;
 482
 483         /* FIXME: this should be in ps.c */
 484         ret = wl1271_acx_wake_up_conditions(wl);
 485         if (ret < 0) {
 486                 wl1271_error("couldn't set wake up conditions");
 487                 goto out;
 488         }
 489
 490         wl1271_debug(DEBUG_CMD, "cmd set ps mode");
 491
 492         ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
 493         if (!ps_params) {
 494                 ret = -ENOMEM;
 495                 goto out;
 496         }
 497
 498         ps_params->ps_mode = ps_mode;
 499         ps_params->send_null_data = send;
 500         ps_params->retries = 5;
 501         ps_params->hang_over_period = 128;
 502         ps_params->null_data_rate = cpu_to_le32(1); /* 1 Mbps */
 503
 504         ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
 505                               sizeof(*ps_params), 0);
 506         if (ret < 0) {
 507                 wl1271_error("cmd set_ps_mode failed");
 508                 goto out;
 509         }
 510
 511 out:
 512         kfree(ps_params);
 513         return ret;
 514 }
 515
 516 int wl1271_cmd_read_memory(struct wl1271 *wl, u32 addr, void *answer,
 517                            size_t len)
 518 {
 519         struct cmd_read_write_memory *cmd;
 520         int ret = 0;
 521
 522         wl1271_debug(DEBUG_CMD, "cmd read memory");
 523
 524         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 525         if (!cmd) {
 526                 ret = -ENOMEM;
 527                 goto out;
 528         }
 529
 530         WARN_ON(len > MAX_READ_SIZE);
 531         len = min_t(size_t, len, MAX_READ_SIZE);
 532
 533         cmd->addr = cpu_to_le32(addr);
 534         cmd->size = cpu_to_le32(len);
 535
 536         ret = wl1271_cmd_send(wl, CMD_READ_MEMORY, cmd, sizeof(*cmd),
 537                               sizeof(*cmd));
 538         if (ret < 0) {
 539                 wl1271_error("read memory command failed: %d", ret);
 540                 goto out;
 541         }
 542
 543         /* the read command got in */
 544         memcpy(answer, cmd->value, len);
 545
 546 out:
 547         kfree(cmd);
 548         return ret;
 549 }
 550
 551 int wl1271_cmd_scan(struct wl1271 *wl, u8 *ssid, size_t len,
 552                     u8 active_scan, u8 high_prio, u8 band,
 553                     u8 probe_requests)
 554 {
 555
 556         struct wl1271_cmd_trigger_scan_to *trigger = NULL;
 557         struct wl1271_cmd_scan *params = NULL;
 558         struct ieee80211_channel *channels;
 559         int i, j, n_ch, ret;
 560         u16 scan_options = 0;
 561         u8 ieee_band;
 562
 563         if (band == WL1271_SCAN_BAND_2_4_GHZ)
 564                 ieee_band = IEEE80211_BAND_2GHZ;
 565         else if (band == WL1271_SCAN_BAND_DUAL && wl1271_11a_enabled())
 566                 ieee_band = IEEE80211_BAND_2GHZ;
 567         else if (band == WL1271_SCAN_BAND_5_GHZ && wl1271_11a_enabled())
 568                 ieee_band = IEEE80211_BAND_5GHZ;
 569         else
 570                 return -EINVAL;
 571
 572         if (wl->hw->wiphy->bands[ieee_band]->channels == NULL)
 573                 return -EINVAL;
 574
 575         channels = wl->hw->wiphy->bands[ieee_band]->channels;
 576         n_ch = wl->hw->wiphy->bands[ieee_band]->n_channels;
 577
 578         if (test_bit(WL1271_FLAG_SCANNING, &wl->flags))
 579                 return -EINVAL;
 580
 581         params = kzalloc(sizeof(*params), GFP_KERNEL);
 582         if (!params)
 583                 return -ENOMEM;
 584
 585         params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
 586         params->params.rx_filter_options =
 587                 cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
 588
 589         if (!active_scan)
 590                 scan_options |= WL1271_SCAN_OPT_PASSIVE;
 591         if (high_prio)
 592                 scan_options |= WL1271_SCAN_OPT_PRIORITY_HIGH;
 593         params->params.scan_options = cpu_to_le16(scan_options);
 594
 595         params->params.num_probe_requests = probe_requests;
 596         /* Let the fw autodetect suitable tx_rate for probes */
 597         params->params.tx_rate = 0;
 598         params->params.tid_trigger = 0;
 599         params->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
 600
 601         if (band == WL1271_SCAN_BAND_DUAL)
 602                 params->params.band = WL1271_SCAN_BAND_2_4_GHZ;
 603         else
 604                 params->params.band = band;
 605
 606         for (i = 0, j = 0; i < n_ch && i < WL1271_SCAN_MAX_CHANNELS; i++) {
 607                 if (!(channels[i].flags & IEEE80211_CHAN_DISABLED)) {
 608                         params->channels[j].min_duration =
 609                                 cpu_to_le32(WL1271_SCAN_CHAN_MIN_DURATION);
 610                         params->channels[j].max_duration =
 611                                 cpu_to_le32(WL1271_SCAN_CHAN_MAX_DURATION);
 612                         memset(&params->channels[j].bssid_lsb, 0xff, 4);
 613                         memset(&params->channels[j].bssid_msb, 0xff, 2);
 614                         params->channels[j].early_termination = 0;
 615                         params->channels[j].tx_power_att =
 616                                 WL1271_SCAN_CURRENT_TX_PWR;
 617                         params->channels[j].channel = channels[i].hw_value;
 618                         j++;
 619                 }
 620         }
 621
 622         params->params.num_channels = j;
 623
 624         if (len && ssid) {
 625                 params->params.ssid_len = len;
 626                 memcpy(params->params.ssid, ssid, len);
 627         }
 628
 629         ret = wl1271_cmd_build_probe_req(wl, ssid, len, ieee_band);
 630         if (ret < 0) {
 631                 wl1271_error("PROBE request template failed");
 632                 goto out;
 633         }
 634
 635         trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
 636         if (!trigger) {
 637                 ret = -ENOMEM;
 638                 goto out;
 639         }
 640
 641         /* disable the timeout */
 642         trigger->timeout = 0;
 643
 644         ret = wl1271_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger,
 645                               sizeof(*trigger), 0);
 646         if (ret < 0) {
 647                 wl1271_error("trigger scan to failed for hw scan");
 648                 goto out;
 649         }
 650
 651         wl1271_dump(DEBUG_SCAN, "SCAN: ", params, sizeof(*params));
 652
 653         set_bit(WL1271_FLAG_SCANNING, &wl->flags);
 654         if (wl1271_11a_enabled()) {
 655                 wl->scan.state = band;
 656                 if (band == WL1271_SCAN_BAND_DUAL) {
 657                         wl->scan.active = active_scan;
 658                         wl->scan.high_prio = high_prio;
 659                         wl->scan.probe_requests = probe_requests;
 660                         if (len && ssid) {
 661                                 wl->scan.ssid_len = len;
 662                                 memcpy(wl->scan.ssid, ssid, len);
 663                         } else
 664                                 wl->scan.ssid_len = 0;
 665                 }
 666         }
 667
 668         ret = wl1271_cmd_send(wl, CMD_SCAN, params, sizeof(*params), 0);
 669         if (ret < 0) {
 670                 wl1271_error("SCAN failed");
 671                 clear_bit(WL1271_FLAG_SCANNING, &wl->flags);
 672                 goto out;
 673         }
 674
 675 out:
 676         kfree(params);
 677         return ret;
 678 }
 679
 680 int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
 681                             void *buf, size_t buf_len)
 682 {
 683         struct wl1271_cmd_template_set *cmd;
 684         int ret = 0;
 685
 686         wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
 687
 688         WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
 689         buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
 690
 691         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 692         if (!cmd) {
 693                 ret = -ENOMEM;
 694                 goto out;
 695         }
 696
 697         cmd->len = cpu_to_le16(buf_len);
 698         cmd->template_type = template_id;
 699         cmd->enabled_rates = cpu_to_le32(wl->conf.tx.rc_conf.enabled_rates);
 700         cmd->short_retry_limit = wl->conf.tx.rc_conf.short_retry_limit;
 701         cmd->long_retry_limit = wl->conf.tx.rc_conf.long_retry_limit;
 702
 703         if (buf)
 704                 memcpy(cmd->template_data, buf, buf_len);
 705
 706         ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
 707         if (ret < 0) {
 708                 wl1271_warning("cmd set_template failed: %d", ret);
 709                 goto out_free;
 710         }
 711
 712 out_free:
 713         kfree(cmd);
 714
 715 out:
 716         return ret;
 717 }
 718
 719 static int wl1271_build_basic_rates(u8 *rates, u8 band)
 720 {
 721         u8 index = 0;
 722
 723         if (band == IEEE80211_BAND_2GHZ) {
 724                 rates[index++] =
 725                         IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
 726                 rates[index++] =
 727                         IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
 728                 rates[index++] =
 729                         IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
 730                 rates[index++] =
 731                         IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
 732         } else if (band == IEEE80211_BAND_5GHZ) {
 733                 rates[index++] =
 734                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_6MB;
 735                 rates[index++] =
 736                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_12MB;
 737                 rates[index++] =
 738                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB;
 739         } else {
 740                 wl1271_error("build_basic_rates invalid band: %d", band);
 741         }
 742
 743         return index;
 744 }
 745
 746 static int wl1271_build_extended_rates(u8 *rates, u8 band)
 747 {
 748         u8 index = 0;
 749
 750         if (band == IEEE80211_BAND_2GHZ) {
 751                 rates[index++] = IEEE80211_OFDM_RATE_6MB;
 752                 rates[index++] = IEEE80211_OFDM_RATE_9MB;
 753                 rates[index++] = IEEE80211_OFDM_RATE_12MB;
 754                 rates[index++] = IEEE80211_OFDM_RATE_18MB;
 755                 rates[index++] = IEEE80211_OFDM_RATE_24MB;
 756                 rates[index++] = IEEE80211_OFDM_RATE_36MB;
 757                 rates[index++] = IEEE80211_OFDM_RATE_48MB;
 758                 rates[index++] = IEEE80211_OFDM_RATE_54MB;
 759         } else if (band == IEEE80211_BAND_5GHZ) {
 760                 rates[index++] =
 761                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_9MB;
 762                 rates[index++] =
 763                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_18MB;
 764                 rates[index++] =
 765                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB;
 766                 rates[index++] =
 767                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_36MB;
 768                 rates[index++] =
 769                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_48MB;
 770                 rates[index++] =
 771                         IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_54MB;
 772         } else {
 773                 wl1271_error("build_basic_rates invalid band: %d", band);
 774         }
 775
 776         return index;
 777 }
 778
 779 int wl1271_cmd_build_null_data(struct wl1271 *wl)
 780 {
 781         struct wl12xx_null_data_template template;
 782
 783         if (!is_zero_ether_addr(wl->bssid)) {
 784                 memcpy(template.header.da, wl->bssid, ETH_ALEN);
 785                 memcpy(template.header.bssid, wl->bssid, ETH_ALEN);
 786         } else {
 787                 memset(template.header.da, 0xff, ETH_ALEN);
 788                 memset(template.header.bssid, 0xff, ETH_ALEN);
 789         }
 790
 791         memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
 792         template.header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_DATA |
 793                                                 IEEE80211_STYPE_NULLFUNC |
 794                                                 IEEE80211_FCTL_TODS);
 795
 796         return wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, &template,
 797                                        sizeof(template));
 798
 799 }
 800
 801 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, u16 aid)
 802 {
 803         struct wl12xx_ps_poll_template template;
 804
 805         memcpy(template.bssid, wl->bssid, ETH_ALEN);
 806         memcpy(template.ta, wl->mac_addr, ETH_ALEN);
 807
 808         /* aid in PS-Poll has its two MSBs each set to 1 */
 809         template.aid = cpu_to_le16(1 << 15 | 1 << 14 | aid);
 810
 811         template.fc = cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 812
 813         return wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, &template,
 814                                        sizeof(template));
 815
 816 }
 817
 818 int wl1271_cmd_build_probe_req(struct wl1271 *wl, u8 *ssid, size_t ssid_len,
 819                                u8 band)
 820 {
 821         struct wl12xx_probe_req_template template;
 822         struct wl12xx_ie_rates *rates;
 823         char *ptr;
 824         u16 size;
 825         int ret;
 826
 827         ptr = (char *)&template;
 828         size = sizeof(struct ieee80211_header);
 829
 830         memset(template.header.da, 0xff, ETH_ALEN);
 831         memset(template.header.bssid, 0xff, ETH_ALEN);
 832         memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
 833         template.header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
 834
 835         /* IEs */
 836         /* SSID */
 837         template.ssid.header.id = WLAN_EID_SSID;
 838         template.ssid.header.len = ssid_len;
 839         if (ssid_len && ssid)
 840                 memcpy(template.ssid.ssid, ssid, ssid_len);
 841         size += sizeof(struct wl12xx_ie_header) + ssid_len;
 842         ptr += size;
 843
 844         /* Basic Rates */
 845         rates = (struct wl12xx_ie_rates *)ptr;
 846         rates->header.id = WLAN_EID_SUPP_RATES;
 847         rates->header.len = wl1271_build_basic_rates(rates->rates, band);
 848         size += sizeof(struct wl12xx_ie_header) + rates->header.len;
 849         ptr += sizeof(struct wl12xx_ie_header) + rates->header.len;
 850
 851         /* Extended rates */
 852         rates = (struct wl12xx_ie_rates *)ptr;
 853         rates->header.id = WLAN_EID_EXT_SUPP_RATES;
 854         rates->header.len = wl1271_build_extended_rates(rates->rates, band);
 855         size += sizeof(struct wl12xx_ie_header) + rates->header.len;
 856
 857         wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", &template, size);
 858
 859         if (band == IEEE80211_BAND_2GHZ)
 860                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 861                                               &template, size);
 862         else
 863                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
 864                                               &template, size);
 865         return ret;
 866 }
 867
 868 int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id)
 869 {
 870         struct wl1271_cmd_set_keys *cmd;
 871         int ret = 0;
 872
 873         wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
 874
 875         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 876         if (!cmd) {
 877                 ret = -ENOMEM;
 878                 goto out;
 879         }
 880
 881         cmd->id = id;
 882         cmd->key_action = cpu_to_le16(KEY_SET_ID);
 883         cmd->key_type = KEY_WEP;
 884
 885         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 886         if (ret < 0) {
 887                 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
 888                 goto out;
 889         }
 890
 891 out:
 892         kfree(cmd);
 893
 894         return ret;
 895 }
 896
 897 int wl1271_cmd_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
 898                        u8 key_size, const u8 *key, const u8 *addr,
 899                        u32 tx_seq_32, u16 tx_seq_16)
 900 {
 901         struct wl1271_cmd_set_keys *cmd;
 902         int ret = 0;
 903
 904         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 905         if (!cmd) {
 906                 ret = -ENOMEM;
 907                 goto out;
 908         }
 909
 910         if (key_type != KEY_WEP)
 911                 memcpy(cmd->addr, addr, ETH_ALEN);
 912
 913         cmd->key_action = cpu_to_le16(action);
 914         cmd->key_size = key_size;
 915         cmd->key_type = key_type;
 916
 917         cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
 918         cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
 919
 920         /* we have only one SSID profile */
 921         cmd->ssid_profile = 0;
 922
 923         cmd->id = id;
 924
 925         if (key_type == KEY_TKIP) {
 926                 /*
 927                  * We get the key in the following form:
 928                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
 929                  * but the target is expecting:
 930                  * TKIP - RX MIC - TX MIC
 931                  */
 932                 memcpy(cmd->key, key, 16);
 933                 memcpy(cmd->key + 16, key + 24, 8);
 934                 memcpy(cmd->key + 24, key + 16, 8);
 935
 936         } else {
 937                 memcpy(cmd->key, key, key_size);
 938         }
 939
 940         wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
 941
 942         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 943         if (ret < 0) {
 944                 wl1271_warning("could not set keys");
 945         goto out;
 946         }
 947
 948 out:
 949         kfree(cmd);
 950
 951         return ret;
 952 }
 953
 954 int wl1271_cmd_disconnect(struct wl1271 *wl)
 955 {
 956         struct wl1271_cmd_disconnect *cmd;
 957         int ret = 0;
 958
 959         wl1271_debug(DEBUG_CMD, "cmd disconnect");
 960
 961         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 962         if (!cmd) {
 963                 ret = -ENOMEM;
 964                 goto out;
 965         }
 966
 967         cmd->rx_config_options = cpu_to_le32(wl->rx_config);
 968         cmd->rx_filter_options = cpu_to_le32(wl->rx_filter);
 969         /* disconnect reason is not used in immediate disconnections */
 970         cmd->type = DISCONNECT_IMMEDIATE;
 971
 972         ret = wl1271_cmd_send(wl, CMD_DISCONNECT, cmd, sizeof(*cmd), 0);
 973         if (ret < 0) {
 974                 wl1271_error("failed to send disconnect command");
 975                 goto out_free;
 976         }
 977
 978 out_free:
 979         kfree(cmd);
 980
 981 out:
 982         return ret;
 983 }