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) 2009-2010 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 #include "wl1271_event.h"
  38
  39 #define WL1271_CMD_FAST_POLL_COUNT       50
  40
  41 /*
  42  * send command to firmware
  43  *
  44  * @wl: wl struct
  45  * @id: command id
  46  * @buf: buffer containing the command, must work with dma
  47  * @len: length of the buffer
  48  */
  49 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
  50                     size_t res_len)
  51 {
  52         struct wl1271_cmd_header *cmd;
  53         unsigned long timeout;
  54         u32 intr;
  55         int ret = 0;
  56         u16 status;
  57         u16 poll_count = 0;
  58
  59         cmd = buf;
  60         cmd->id = cpu_to_le16(id);
  61         cmd->status = 0;
  62
  63         WARN_ON(len % 4 != 0);
  64
  65         wl1271_write(wl, wl->cmd_box_addr, buf, len, false);
  66
  67         wl1271_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
  68
  69         timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
  70
  71         intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  72         while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
  73                 if (time_after(jiffies, timeout)) {
  74                         wl1271_error("command complete timeout");
  75                         ret = -ETIMEDOUT;
  76                         goto out;
  77                 }
  78
  79                 poll_count++;
  80                 if (poll_count < WL1271_CMD_FAST_POLL_COUNT)
  81                         udelay(10);
  82                 else
  83                         msleep(1);
  84
  85                 intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  86         }
  87
  88         /* read back the status code of the command */
  89         if (res_len == 0)
  90                 res_len = sizeof(struct wl1271_cmd_header);
  91         wl1271_read(wl, wl->cmd_box_addr, cmd, res_len, false);
  92
  93         status = le16_to_cpu(cmd->status);
  94         if (status != CMD_STATUS_SUCCESS) {
  95                 wl1271_error("command execute failure %d", status);
  96                 ret = -EIO;
  97         }
  98
  99         wl1271_write32(wl, ACX_REG_INTERRUPT_ACK,
 100                        WL1271_ACX_INTR_CMD_COMPLETE);
 101
 102 out:
 103         return ret;
 104 }
 105
 106 static int wl1271_cmd_cal_channel_tune(struct wl1271 *wl)
 107 {
 108         struct wl1271_cmd_cal_channel_tune *cmd;
 109         int ret = 0;
 110
 111         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 112         if (!cmd)
 113                 return -ENOMEM;
 114
 115         cmd->test.id = TEST_CMD_CHANNEL_TUNE;
 116
 117         cmd->band = WL1271_CHANNEL_TUNE_BAND_2_4;
 118         /* set up any channel, 7 is in the middle of the range */
 119         cmd->channel = 7;
 120
 121         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
 122         if (ret < 0)
 123                 wl1271_warning("TEST_CMD_CHANNEL_TUNE failed");
 124
 125         kfree(cmd);
 126         return ret;
 127 }
 128
 129 static int wl1271_cmd_cal_update_ref_point(struct wl1271 *wl)
 130 {
 131         struct wl1271_cmd_cal_update_ref_point *cmd;
 132         int ret = 0;
 133
 134         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 135         if (!cmd)
 136                 return -ENOMEM;
 137
 138         cmd->test.id = TEST_CMD_UPDATE_PD_REFERENCE_POINT;
 139
 140         /* FIXME: still waiting for the correct values */
 141         cmd->ref_power    = 0;
 142         cmd->ref_detector = 0;
 143
 144         cmd->sub_band     = WL1271_PD_REFERENCE_POINT_BAND_B_G;
 145
 146         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
 147         if (ret < 0)
 148                 wl1271_warning("TEST_CMD_UPDATE_PD_REFERENCE_POINT failed");
 149
 150         kfree(cmd);
 151         return ret;
 152 }
 153
 154 static int wl1271_cmd_cal_p2g(struct wl1271 *wl)
 155 {
 156         struct wl1271_cmd_cal_p2g *cmd;
 157         int ret = 0;
 158
 159         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 160         if (!cmd)
 161                 return -ENOMEM;
 162
 163         cmd->test.id = TEST_CMD_P2G_CAL;
 164
 165         cmd->sub_band_mask = WL1271_CAL_P2G_BAND_B_G;
 166
 167         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
 168         if (ret < 0)
 169                 wl1271_warning("TEST_CMD_P2G_CAL failed");
 170
 171         kfree(cmd);
 172         return ret;
 173 }
 174
 175 static int wl1271_cmd_cal(struct wl1271 *wl)
 176 {
 177         /*
 178          * FIXME: we must make sure that we're not sleeping when calibration
 179          * is done
 180          */
 181         int ret;
 182
 183         wl1271_notice("performing tx calibration");
 184
 185         ret = wl1271_cmd_cal_channel_tune(wl);
 186         if (ret < 0)
 187                 return ret;
 188
 189         ret = wl1271_cmd_cal_update_ref_point(wl);
 190         if (ret < 0)
 191                 return ret;
 192
 193         ret = wl1271_cmd_cal_p2g(wl);
 194         if (ret < 0)
 195                 return ret;
 196
 197         return ret;
 198 }
 199
 200 int wl1271_cmd_general_parms(struct wl1271 *wl)
 201 {
 202         struct wl1271_general_parms_cmd *gen_parms;
 203         int ret;
 204
 205         if (!wl->nvs)
 206                 return -ENODEV;
 207
 208         gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL);
 209         if (!gen_parms)
 210                 return -ENOMEM;
 211
 212         gen_parms->test.id = TEST_CMD_INI_FILE_GENERAL_PARAM;
 213
 214         memcpy(gen_parms->params, wl->nvs->general_params,
 215                WL1271_NVS_GENERAL_PARAMS_SIZE);
 216
 217         ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), 0);
 218         if (ret < 0)
 219                 wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
 220
 221         kfree(gen_parms);
 222         return ret;
 223 }
 224
 225 int wl1271_cmd_radio_parms(struct wl1271 *wl)
 226 {
 227         struct wl1271_radio_parms_cmd *radio_parms;
 228         struct conf_radio_parms *rparam = &wl->conf.init.radioparam;
 229         int ret;
 230
 231         if (!wl->nvs)
 232                 return -ENODEV;
 233
 234         radio_parms = kzalloc(sizeof(*radio_parms), GFP_KERNEL);
 235         if (!radio_parms)
 236                 return -ENOMEM;
 237
 238         radio_parms->test.id = TEST_CMD_INI_FILE_RADIO_PARAM;
 239
 240         memcpy(radio_parms->stat_radio_params, wl->nvs->stat_radio_params,
 241                WL1271_NVS_STAT_RADIO_PARAMS_SIZE);
 242         memcpy(radio_parms->dyn_radio_params,
 243                wl->nvs->dyn_radio_params[rparam->fem],
 244                WL1271_NVS_DYN_RADIO_PARAMS_SIZE);
 245
 246         /* FIXME: current NVS is missing 5GHz parameters */
 247
 248         wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_RADIO_PARAM: ",
 249                     radio_parms, sizeof(*radio_parms));
 250
 251         ret = wl1271_cmd_test(wl, radio_parms, sizeof(*radio_parms), 0);
 252         if (ret < 0)
 253                 wl1271_warning("CMD_INI_FILE_RADIO_PARAM failed");
 254
 255         kfree(radio_parms);
 256         return ret;
 257 }
 258
 259 /*
 260  * Poll the mailbox event field until any of the bits in the mask is set or a
 261  * timeout occurs (WL1271_EVENT_TIMEOUT in msecs)
 262  */
 263 static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask)
 264 {
 265         u32 events_vector, event;
 266         unsigned long timeout;
 267
 268         timeout = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
 269
 270         do {
 271                 if (time_after(jiffies, timeout))
 272                         return -ETIMEDOUT;
 273
 274                 msleep(1);
 275
 276                 /* read from both event fields */
 277                 wl1271_read(wl, wl->mbox_ptr[0], &events_vector,
 278                             sizeof(events_vector), false);
 279                 event = events_vector & mask;
 280                 wl1271_read(wl, wl->mbox_ptr[1], &events_vector,
 281                             sizeof(events_vector), false);
 282                 event |= events_vector & mask;
 283         } while (!event);
 284
 285         return 0;
 286 }
 287
 288 int wl1271_cmd_join(struct wl1271 *wl, u8 bss_type)
 289 {
 290         static bool do_cal = true;
 291         struct wl1271_cmd_join *join;
 292         int ret, i;
 293         u8 *bssid;
 294
 295         /* FIXME: remove when we get calibration from the factory */
 296         if (do_cal) {
 297                 ret = wl1271_cmd_cal(wl);
 298                 if (ret < 0)
 299                         wl1271_warning("couldn't calibrate");
 300                 else
 301                         do_cal = false;
 302         }
 303
 304         join = kzalloc(sizeof(*join), GFP_KERNEL);
 305         if (!join) {
 306                 ret = -ENOMEM;
 307                 goto out;
 308         }
 309
 310         wl1271_debug(DEBUG_CMD, "cmd join");
 311
 312         /* Reverse order BSSID */
 313         bssid = (u8 *) &join->bssid_lsb;
 314         for (i = 0; i < ETH_ALEN; i++)
 315                 bssid[i] = wl->bssid[ETH_ALEN - i - 1];
 316
 317         join->rx_config_options = cpu_to_le32(wl->rx_config);
 318         join->rx_filter_options = cpu_to_le32(wl->rx_filter);
 319         join->bss_type = bss_type;
 320         join->basic_rate_set = cpu_to_le32(wl->basic_rate_set);
 321
 322         if (wl->band == IEEE80211_BAND_5GHZ)
 323                 join->bss_type |= WL1271_JOIN_CMD_BSS_TYPE_5GHZ;
 324
 325         join->beacon_interval = cpu_to_le16(wl->beacon_int);
 326         join->dtim_interval = WL1271_DEFAULT_DTIM_PERIOD;
 327
 328         join->channel = wl->channel;
 329         join->ssid_len = wl->ssid_len;
 330         memcpy(join->ssid, wl->ssid, wl->ssid_len);
 331         join->ctrl = WL1271_JOIN_CMD_CTRL_TX_FLUSH;
 332
 333         /* increment the session counter */
 334         wl->session_counter++;
 335         if (wl->session_counter >= SESSION_COUNTER_MAX)
 336                 wl->session_counter = 0;
 337
 338         join->ctrl |= wl->session_counter << WL1271_JOIN_CMD_TX_SESSION_OFFSET;
 339
 340         /* reset TX security counters */
 341         wl->tx_security_last_seq = 0;
 342         wl->tx_security_seq = 0;
 343
 344         ret = wl1271_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join), 0);
 345         if (ret < 0) {
 346                 wl1271_error("failed to initiate cmd join");
 347                 goto out_free;
 348         }
 349
 350         ret = wl1271_cmd_wait_for_event(wl, JOIN_EVENT_COMPLETE_ID);
 351         if (ret < 0)
 352                 wl1271_error("cmd join event completion error");
 353
 354 out_free:
 355         kfree(join);
 356
 357 out:
 358         return ret;
 359 }
 360
 361 /**
 362  * send test command to firmware
 363  *
 364  * @wl: wl struct
 365  * @buf: buffer containing the command, with all headers, must work with dma
 366  * @len: length of the buffer
 367  * @answer: is answer needed
 368  */
 369 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
 370 {
 371         int ret;
 372         size_t res_len = 0;
 373
 374         wl1271_debug(DEBUG_CMD, "cmd test");
 375
 376         if (answer)
 377                 res_len = buf_len;
 378
 379         ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
 380
 381         if (ret < 0) {
 382                 wl1271_warning("TEST command failed");
 383                 return ret;
 384         }
 385
 386         return ret;
 387 }
 388
 389 /**
 390  * read acx from firmware
 391  *
 392  * @wl: wl struct
 393  * @id: acx id
 394  * @buf: buffer for the response, including all headers, must work with dma
 395  * @len: lenght of buf
 396  */
 397 int wl1271_cmd_interrogate(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 interrogate");
 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_INTERROGATE, acx, sizeof(*acx), len);
 410         if (ret < 0)
 411                 wl1271_error("INTERROGATE command failed");
 412
 413         return ret;
 414 }
 415
 416 /**
 417  * write acx value to firmware
 418  *
 419  * @wl: wl struct
 420  * @id: acx id
 421  * @buf: buffer containing acx, including all headers, must work with dma
 422  * @len: length of buf
 423  */
 424 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
 425 {
 426         struct acx_header *acx = buf;
 427         int ret;
 428
 429         wl1271_debug(DEBUG_CMD, "cmd configure");
 430
 431         acx->id = cpu_to_le16(id);
 432
 433         /* payload length, does not include any headers */
 434         acx->len = cpu_to_le16(len - sizeof(*acx));
 435
 436         ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0);
 437         if (ret < 0) {
 438                 wl1271_warning("CONFIGURE command NOK");
 439                 return ret;
 440         }
 441
 442         return 0;
 443 }
 444
 445 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
 446 {
 447         struct cmd_enabledisable_path *cmd;
 448         int ret;
 449         u16 cmd_rx, cmd_tx;
 450
 451         wl1271_debug(DEBUG_CMD, "cmd data path");
 452
 453         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 454         if (!cmd) {
 455                 ret = -ENOMEM;
 456                 goto out;
 457         }
 458
 459         /* the channel here is only used for calibration, so hardcoded to 1 */
 460         cmd->channel = 1;
 461
 462         if (enable) {
 463                 cmd_rx = CMD_ENABLE_RX;
 464                 cmd_tx = CMD_ENABLE_TX;
 465         } else {
 466                 cmd_rx = CMD_DISABLE_RX;
 467                 cmd_tx = CMD_DISABLE_TX;
 468         }
 469
 470         ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
 471         if (ret < 0) {
 472                 wl1271_error("rx %s cmd for channel %d failed",
 473                              enable ? "start" : "stop", cmd->channel);
 474                 goto out;
 475         }
 476
 477         wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
 478                      enable ? "start" : "stop", cmd->channel);
 479
 480         ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
 481         if (ret < 0) {
 482                 wl1271_error("tx %s cmd for channel %d failed",
 483                              enable ? "start" : "stop", cmd->channel);
 484                 goto out;
 485         }
 486
 487         wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
 488                      enable ? "start" : "stop", cmd->channel);
 489
 490 out:
 491         kfree(cmd);
 492         return ret;
 493 }
 494
 495 int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode, bool send)
 496 {
 497         struct wl1271_cmd_ps_params *ps_params = NULL;
 498         int ret = 0;
 499
 500         /* FIXME: this should be in ps.c */
 501         ret = wl1271_acx_wake_up_conditions(wl);
 502         if (ret < 0) {
 503                 wl1271_error("couldn't set wake up conditions");
 504                 goto out;
 505         }
 506
 507         wl1271_debug(DEBUG_CMD, "cmd set ps mode");
 508
 509         ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
 510         if (!ps_params) {
 511                 ret = -ENOMEM;
 512                 goto out;
 513         }
 514
 515         ps_params->ps_mode = ps_mode;
 516         ps_params->send_null_data = send;
 517         ps_params->retries = 5;
 518         ps_params->hang_over_period = 128;
 519         ps_params->null_data_rate = cpu_to_le32(1); /* 1 Mbps */
 520
 521         ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
 522                               sizeof(*ps_params), 0);
 523         if (ret < 0) {
 524                 wl1271_error("cmd set_ps_mode failed");
 525                 goto out;
 526         }
 527
 528 out:
 529         kfree(ps_params);
 530         return ret;
 531 }
 532
 533 int wl1271_cmd_read_memory(struct wl1271 *wl, u32 addr, void *answer,
 534                            size_t len)
 535 {
 536         struct cmd_read_write_memory *cmd;
 537         int ret = 0;
 538
 539         wl1271_debug(DEBUG_CMD, "cmd read memory");
 540
 541         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 542         if (!cmd) {
 543                 ret = -ENOMEM;
 544                 goto out;
 545         }
 546
 547         WARN_ON(len > MAX_READ_SIZE);
 548         len = min_t(size_t, len, MAX_READ_SIZE);
 549
 550         cmd->addr = cpu_to_le32(addr);
 551         cmd->size = cpu_to_le32(len);
 552
 553         ret = wl1271_cmd_send(wl, CMD_READ_MEMORY, cmd, sizeof(*cmd),
 554                               sizeof(*cmd));
 555         if (ret < 0) {
 556                 wl1271_error("read memory command failed: %d", ret);
 557                 goto out;
 558         }
 559
 560         /* the read command got in */
 561         memcpy(answer, cmd->value, len);
 562
 563 out:
 564         kfree(cmd);
 565         return ret;
 566 }
 567
 568 int wl1271_cmd_scan(struct wl1271 *wl, const u8 *ssid, size_t ssid_len,
 569                     const u8 *ie, size_t ie_len, u8 active_scan,
 570                     u8 high_prio, u8 band, u8 probe_requests)
 571 {
 572
 573         struct wl1271_cmd_trigger_scan_to *trigger = NULL;
 574         struct wl1271_cmd_scan *params = NULL;
 575         struct ieee80211_channel *channels;
 576         u32 rate;
 577         int i, j, n_ch, ret;
 578         u16 scan_options = 0;
 579         u8 ieee_band;
 580
 581         if (band == WL1271_SCAN_BAND_2_4_GHZ) {
 582                 ieee_band = IEEE80211_BAND_2GHZ;
 583                 rate = wl->conf.tx.basic_rate;
 584         } else if (band == WL1271_SCAN_BAND_DUAL && wl1271_11a_enabled()) {
 585                 ieee_band = IEEE80211_BAND_2GHZ;
 586                 rate = wl->conf.tx.basic_rate;
 587         } else if (band == WL1271_SCAN_BAND_5_GHZ && wl1271_11a_enabled()) {
 588                 ieee_band = IEEE80211_BAND_5GHZ;
 589                 rate = wl->conf.tx.basic_rate_5;
 590         } else
 591                 return -EINVAL;
 592
 593         if (wl->hw->wiphy->bands[ieee_band]->channels == NULL)
 594                 return -EINVAL;
 595
 596         channels = wl->hw->wiphy->bands[ieee_band]->channels;
 597         n_ch = wl->hw->wiphy->bands[ieee_band]->n_channels;
 598
 599         if (test_bit(WL1271_FLAG_SCANNING, &wl->flags))
 600                 return -EINVAL;
 601
 602         params = kzalloc(sizeof(*params), GFP_KERNEL);
 603         if (!params)
 604                 return -ENOMEM;
 605
 606         params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
 607         params->params.rx_filter_options =
 608                 cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
 609
 610         if (!active_scan)
 611                 scan_options |= WL1271_SCAN_OPT_PASSIVE;
 612         if (high_prio)
 613                 scan_options |= WL1271_SCAN_OPT_PRIORITY_HIGH;
 614         params->params.scan_options = cpu_to_le16(scan_options);
 615
 616         params->params.num_probe_requests = probe_requests;
 617         params->params.tx_rate = cpu_to_le32(rate);
 618         params->params.tid_trigger = 0;
 619         params->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
 620
 621         if (band == WL1271_SCAN_BAND_DUAL)
 622                 params->params.band = WL1271_SCAN_BAND_2_4_GHZ;
 623         else
 624                 params->params.band = band;
 625
 626         for (i = 0, j = 0; i < n_ch && i < WL1271_SCAN_MAX_CHANNELS; i++) {
 627                 if (!(channels[i].flags & IEEE80211_CHAN_DISABLED)) {
 628                         params->channels[j].min_duration =
 629                                 cpu_to_le32(WL1271_SCAN_CHAN_MIN_DURATION);
 630                         params->channels[j].max_duration =
 631                                 cpu_to_le32(WL1271_SCAN_CHAN_MAX_DURATION);
 632                         memset(&params->channels[j].bssid_lsb, 0xff, 4);
 633                         memset(&params->channels[j].bssid_msb, 0xff, 2);
 634                         params->channels[j].early_termination = 0;
 635                         params->channels[j].tx_power_att =
 636                                 WL1271_SCAN_CURRENT_TX_PWR;
 637                         params->channels[j].channel = channels[i].hw_value;
 638                         j++;
 639                 }
 640         }
 641
 642         params->params.num_channels = j;
 643
 644         if (ssid_len && ssid) {
 645                 params->params.ssid_len = ssid_len;
 646                 memcpy(params->params.ssid, ssid, ssid_len);
 647         }
 648
 649         ret = wl1271_cmd_build_probe_req(wl, ssid, ssid_len,
 650                                          ie, ie_len, ieee_band);
 651         if (ret < 0) {
 652                 wl1271_error("PROBE request template failed");
 653                 goto out;
 654         }
 655
 656         trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
 657         if (!trigger) {
 658                 ret = -ENOMEM;
 659                 goto out;
 660         }
 661
 662         /* disable the timeout */
 663         trigger->timeout = 0;
 664
 665         ret = wl1271_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger,
 666                               sizeof(*trigger), 0);
 667         if (ret < 0) {
 668                 wl1271_error("trigger scan to failed for hw scan");
 669                 goto out;
 670         }
 671
 672         wl1271_dump(DEBUG_SCAN, "SCAN: ", params, sizeof(*params));
 673
 674         set_bit(WL1271_FLAG_SCANNING, &wl->flags);
 675         if (wl1271_11a_enabled()) {
 676                 wl->scan.state = band;
 677                 if (band == WL1271_SCAN_BAND_DUAL) {
 678                         wl->scan.active = active_scan;
 679                         wl->scan.high_prio = high_prio;
 680                         wl->scan.probe_requests = probe_requests;
 681                         if (ssid_len && ssid) {
 682                                 wl->scan.ssid_len = ssid_len;
 683                                 memcpy(wl->scan.ssid, ssid, ssid_len);
 684                         } else
 685                                 wl->scan.ssid_len = 0;
 686                 }
 687         }
 688
 689         ret = wl1271_cmd_send(wl, CMD_SCAN, params, sizeof(*params), 0);
 690         if (ret < 0) {
 691                 wl1271_error("SCAN failed");
 692                 clear_bit(WL1271_FLAG_SCANNING, &wl->flags);
 693                 goto out;
 694         }
 695
 696 out:
 697         kfree(params);
 698         kfree(trigger);
 699         return ret;
 700 }
 701
 702 int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
 703                             void *buf, size_t buf_len, int index, u32 rates)
 704 {
 705         struct wl1271_cmd_template_set *cmd;
 706         int ret = 0;
 707
 708         wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
 709
 710         WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
 711         buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
 712
 713         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 714         if (!cmd) {
 715                 ret = -ENOMEM;
 716                 goto out;
 717         }
 718
 719         cmd->len = cpu_to_le16(buf_len);
 720         cmd->template_type = template_id;
 721         cmd->enabled_rates = cpu_to_le32(rates);
 722         cmd->short_retry_limit = wl->conf.tx.rc_conf.short_retry_limit;
 723         cmd->long_retry_limit = wl->conf.tx.rc_conf.long_retry_limit;
 724         cmd->index = index;
 725
 726         if (buf)
 727                 memcpy(cmd->template_data, buf, buf_len);
 728
 729         ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
 730         if (ret < 0) {
 731                 wl1271_warning("cmd set_template failed: %d", ret);
 732                 goto out_free;
 733         }
 734
 735 out_free:
 736         kfree(cmd);
 737
 738 out:
 739         return ret;
 740 }
 741
 742 int wl1271_cmd_build_null_data(struct wl1271 *wl)
 743 {
 744         struct sk_buff *skb = NULL;
 745         int size;
 746         void *ptr;
 747         int ret = -ENOMEM;
 748
 749
 750         if (wl->bss_type == BSS_TYPE_IBSS) {
 751                 size = sizeof(struct wl12xx_null_data_template);
 752                 ptr = NULL;
 753         } else {
 754                 skb = ieee80211_nullfunc_get(wl->hw, wl->vif);
 755                 if (!skb)
 756                         goto out;
 757                 size = skb->len;
 758                 ptr = skb->data;
 759         }
 760
 761         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, ptr, size, 0,
 762                                       WL1271_RATE_AUTOMATIC);
 763
 764 out:
 765         dev_kfree_skb(skb);
 766         if (ret)
 767                 wl1271_warning("cmd buld null data failed %d", ret);
 768
 769         return ret;
 770
 771 }
 772
 773 int wl1271_cmd_build_klv_null_data(struct wl1271 *wl)
 774 {
 775         struct sk_buff *skb = NULL;
 776         int ret = -ENOMEM;
 777
 778         skb = ieee80211_nullfunc_get(wl->hw, wl->vif);
 779         if (!skb)
 780                 goto out;
 781
 782         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_KLV,
 783                                       skb->data, skb->len,
 784                                       CMD_TEMPL_KLV_IDX_NULL_DATA,
 785                                       WL1271_RATE_AUTOMATIC);
 786
 787 out:
 788         dev_kfree_skb(skb);
 789         if (ret)
 790                 wl1271_warning("cmd build klv null data failed %d", ret);
 791
 792         return ret;
 793
 794 }
 795
 796 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, u16 aid)
 797 {
 798         struct sk_buff *skb;
 799         int ret = 0;
 800
 801         skb = ieee80211_pspoll_get(wl->hw, wl->vif);
 802         if (!skb)
 803                 goto out;
 804
 805         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, skb->data,
 806                                       skb->len, 0, wl->basic_rate);
 807
 808 out:
 809         dev_kfree_skb(skb);
 810         return ret;
 811 }
 812
 813 int wl1271_cmd_build_probe_req(struct wl1271 *wl,
 814                                const u8 *ssid, size_t ssid_len,
 815                                const u8 *ie, size_t ie_len, u8 band)
 816 {
 817         struct sk_buff *skb;
 818         int ret;
 819
 820         skb = ieee80211_probereq_get(wl->hw, wl->vif, ssid, ssid_len,
 821                                      ie, ie_len);
 822         if (!skb) {
 823                 ret = -ENOMEM;
 824                 goto out;
 825         }
 826
 827         wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len);
 828
 829         if (band == IEEE80211_BAND_2GHZ)
 830                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 831                                               skb->data, skb->len, 0,
 832                                               wl->conf.tx.basic_rate);
 833         else
 834                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
 835                                               skb->data, skb->len, 0,
 836                                               wl->conf.tx.basic_rate_5);
 837
 838 out:
 839         dev_kfree_skb(skb);
 840         return ret;
 841 }
 842
 843 int wl1271_build_qos_null_data(struct wl1271 *wl)
 844 {
 845         struct ieee80211_qos_hdr template;
 846
 847         memset(&template, 0, sizeof(template));
 848
 849         memcpy(template.addr1, wl->bssid, ETH_ALEN);
 850         memcpy(template.addr2, wl->mac_addr, ETH_ALEN);
 851         memcpy(template.addr3, wl->bssid, ETH_ALEN);
 852
 853         template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 854                                              IEEE80211_STYPE_QOS_NULLFUNC |
 855                                              IEEE80211_FCTL_TODS);
 856
 857         /* FIXME: not sure what priority to use here */
 858         template.qos_ctrl = cpu_to_le16(0);
 859
 860         return wl1271_cmd_template_set(wl, CMD_TEMPL_QOS_NULL_DATA, &template,
 861                                        sizeof(template), 0,
 862                                        WL1271_RATE_AUTOMATIC);
 863 }
 864
 865 int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id)
 866 {
 867         struct wl1271_cmd_set_keys *cmd;
 868         int ret = 0;
 869
 870         wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
 871
 872         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 873         if (!cmd) {
 874                 ret = -ENOMEM;
 875                 goto out;
 876         }
 877
 878         cmd->id = id;
 879         cmd->key_action = cpu_to_le16(KEY_SET_ID);
 880         cmd->key_type = KEY_WEP;
 881
 882         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 883         if (ret < 0) {
 884                 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
 885                 goto out;
 886         }
 887
 888 out:
 889         kfree(cmd);
 890
 891         return ret;
 892 }
 893
 894 int wl1271_cmd_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
 895                        u8 key_size, const u8 *key, const u8 *addr,
 896                        u32 tx_seq_32, u16 tx_seq_16)
 897 {
 898         struct wl1271_cmd_set_keys *cmd;
 899         int ret = 0;
 900
 901         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 902         if (!cmd) {
 903                 ret = -ENOMEM;
 904                 goto out;
 905         }
 906
 907         if (key_type != KEY_WEP)
 908                 memcpy(cmd->addr, addr, ETH_ALEN);
 909
 910         cmd->key_action = cpu_to_le16(action);
 911         cmd->key_size = key_size;
 912         cmd->key_type = key_type;
 913
 914         cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
 915         cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
 916
 917         /* we have only one SSID profile */
 918         cmd->ssid_profile = 0;
 919
 920         cmd->id = id;
 921
 922         if (key_type == KEY_TKIP) {
 923                 /*
 924                  * We get the key in the following form:
 925                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
 926                  * but the target is expecting:
 927                  * TKIP - RX MIC - TX MIC
 928                  */
 929                 memcpy(cmd->key, key, 16);
 930                 memcpy(cmd->key + 16, key + 24, 8);
 931                 memcpy(cmd->key + 24, key + 16, 8);
 932
 933         } else {
 934                 memcpy(cmd->key, key, key_size);
 935         }
 936
 937         wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
 938
 939         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 940         if (ret < 0) {
 941                 wl1271_warning("could not set keys");
 942         goto out;
 943         }
 944
 945 out:
 946         kfree(cmd);
 947
 948         return ret;
 949 }
 950
 951 int wl1271_cmd_disconnect(struct wl1271 *wl)
 952 {
 953         struct wl1271_cmd_disconnect *cmd;
 954         int ret = 0;
 955
 956         wl1271_debug(DEBUG_CMD, "cmd disconnect");
 957
 958         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 959         if (!cmd) {
 960                 ret = -ENOMEM;
 961                 goto out;
 962         }
 963
 964         cmd->rx_config_options = cpu_to_le32(wl->rx_config);
 965         cmd->rx_filter_options = cpu_to_le32(wl->rx_filter);
 966         /* disconnect reason is not used in immediate disconnections */
 967         cmd->type = DISCONNECT_IMMEDIATE;
 968
 969         ret = wl1271_cmd_send(wl, CMD_DISCONNECT, cmd, sizeof(*cmd), 0);
 970         if (ret < 0) {
 971                 wl1271_error("failed to send disconnect command");
 972                 goto out_free;
 973         }
 974
 975         ret = wl1271_cmd_wait_for_event(wl, DISCONNECT_EVENT_COMPLETE_ID);
 976         if (ret < 0)
 977                 wl1271_error("cmd disconnect event completion error");
 978
 979 out_free:
 980         kfree(cmd);
 981
 982 out:
 983         return ret;
 984 }