drivers/net/wireless/wl12xx/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 #include <linux/slab.h>
  31
  32 #include "wl12xx.h"
  33 #include "reg.h"
  34 #include "io.h"
  35 #include "acx.h"
  36 #include "wl12xx_80211.h"
  37 #include "cmd.h"
  38 #include "event.h"
  39
  40 #define WL1271_CMD_FAST_POLL_COUNT       50
  41
  42 /*
  43  * send command to firmware
  44  *
  45  * @wl: wl struct
  46  * @id: command id
  47  * @buf: buffer containing the command, must work with dma
  48  * @len: length of the buffer
  49  */
  50 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
  51                     size_t res_len)
  52 {
  53         struct wl1271_cmd_header *cmd;
  54         unsigned long timeout;
  55         u32 intr;
  56         int ret = 0;
  57         u16 status;
  58         u16 poll_count = 0;
  59
  60         cmd = buf;
  61         cmd->id = cpu_to_le16(id);
  62         cmd->status = 0;
  63
  64         WARN_ON(len % 4 != 0);
  65
  66         wl1271_write(wl, wl->cmd_box_addr, buf, len, false);
  67
  68         wl1271_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
  69
  70         timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
  71
  72         intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  73         while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
  74                 if (time_after(jiffies, timeout)) {
  75                         wl1271_error("command complete timeout");
  76                         ret = -ETIMEDOUT;
  77                         goto out;
  78                 }
  79
  80                 poll_count++;
  81                 if (poll_count < WL1271_CMD_FAST_POLL_COUNT)
  82                         udelay(10);
  83                 else
  84                         msleep(1);
  85
  86                 intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  87         }
  88
  89         /* read back the status code of the command */
  90         if (res_len == 0)
  91                 res_len = sizeof(struct wl1271_cmd_header);
  92         wl1271_read(wl, wl->cmd_box_addr, cmd, res_len, false);
  93
  94         status = le16_to_cpu(cmd->status);
  95         if (status != CMD_STATUS_SUCCESS) {
  96                 wl1271_error("command execute failure %d", status);
  97                 ieee80211_queue_work(wl->hw, &wl->recovery_work);
  98                 ret = -EIO;
  99         }
 100
 101         wl1271_write32(wl, ACX_REG_INTERRUPT_ACK,
 102                        WL1271_ACX_INTR_CMD_COMPLETE);
 103
 104 out:
 105         return ret;
 106 }
 107
 108 int wl1271_cmd_general_parms(struct wl1271 *wl)
 109 {
 110         struct wl1271_general_parms_cmd *gen_parms;
 111         struct wl1271_ini_general_params *gp = &wl->nvs->general_params;
 112         bool answer = false;
 113         int ret;
 114
 115         if (!wl->nvs)
 116                 return -ENODEV;
 117
 118         gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL);
 119         if (!gen_parms)
 120                 return -ENOMEM;
 121
 122         gen_parms->test.id = TEST_CMD_INI_FILE_GENERAL_PARAM;
 123
 124         memcpy(&gen_parms->general_params, gp, sizeof(*gp));
 125
 126         if (gp->tx_bip_fem_auto_detect)
 127                 answer = true;
 128
 129         ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), answer);
 130         if (ret < 0) {
 131                 wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
 132                 goto out;
 133         }
 134
 135         gp->tx_bip_fem_manufacturer =
 136                 gen_parms->general_params.tx_bip_fem_manufacturer;
 137
 138         wl1271_debug(DEBUG_CMD, "FEM autodetect: %s, manufacturer: %d\n",
 139                      answer ? "auto" : "manual", gp->tx_bip_fem_manufacturer);
 140
 141 out:
 142         kfree(gen_parms);
 143         return ret;
 144 }
 145
 146 int wl1271_cmd_radio_parms(struct wl1271 *wl)
 147 {
 148         struct wl1271_radio_parms_cmd *radio_parms;
 149         struct wl1271_ini_general_params *gp = &wl->nvs->general_params;
 150         int ret;
 151
 152         if (!wl->nvs)
 153                 return -ENODEV;
 154
 155         radio_parms = kzalloc(sizeof(*radio_parms), GFP_KERNEL);
 156         if (!radio_parms)
 157                 return -ENOMEM;
 158
 159         radio_parms->test.id = TEST_CMD_INI_FILE_RADIO_PARAM;
 160
 161         /* 2.4GHz parameters */
 162         memcpy(&radio_parms->static_params_2, &wl->nvs->stat_radio_params_2,
 163                sizeof(struct wl1271_ini_band_params_2));
 164         memcpy(&radio_parms->dyn_params_2,
 165                &wl->nvs->dyn_radio_params_2[gp->tx_bip_fem_manufacturer].params,
 166                sizeof(struct wl1271_ini_fem_params_2));
 167
 168         /* 5GHz parameters */
 169         memcpy(&radio_parms->static_params_5,
 170                &wl->nvs->stat_radio_params_5,
 171                sizeof(struct wl1271_ini_band_params_5));
 172         memcpy(&radio_parms->dyn_params_5,
 173                &wl->nvs->dyn_radio_params_5[gp->tx_bip_fem_manufacturer].params,
 174                sizeof(struct wl1271_ini_fem_params_5));
 175
 176         wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_RADIO_PARAM: ",
 177                     radio_parms, sizeof(*radio_parms));
 178
 179         ret = wl1271_cmd_test(wl, radio_parms, sizeof(*radio_parms), 0);
 180         if (ret < 0)
 181                 wl1271_warning("CMD_INI_FILE_RADIO_PARAM failed");
 182
 183         kfree(radio_parms);
 184         return ret;
 185 }
 186
 187 int wl1271_cmd_ext_radio_parms(struct wl1271 *wl)
 188 {
 189         struct wl1271_ext_radio_parms_cmd *ext_radio_parms;
 190         struct conf_rf_settings *rf = &wl->conf.rf;
 191         int ret;
 192
 193         if (!wl->nvs)
 194                 return -ENODEV;
 195
 196         ext_radio_parms = kzalloc(sizeof(*ext_radio_parms), GFP_KERNEL);
 197         if (!ext_radio_parms)
 198                 return -ENOMEM;
 199
 200         ext_radio_parms->test.id = TEST_CMD_INI_FILE_RF_EXTENDED_PARAM;
 201
 202         memcpy(ext_radio_parms->tx_per_channel_power_compensation_2,
 203                rf->tx_per_channel_power_compensation_2,
 204                CONF_TX_PWR_COMPENSATION_LEN_2);
 205         memcpy(ext_radio_parms->tx_per_channel_power_compensation_5,
 206                rf->tx_per_channel_power_compensation_5,
 207                CONF_TX_PWR_COMPENSATION_LEN_5);
 208
 209         wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_EXT_RADIO_PARAM: ",
 210                     ext_radio_parms, sizeof(*ext_radio_parms));
 211
 212         ret = wl1271_cmd_test(wl, ext_radio_parms, sizeof(*ext_radio_parms), 0);
 213         if (ret < 0)
 214                 wl1271_warning("TEST_CMD_INI_FILE_RF_EXTENDED_PARAM failed");
 215
 216         kfree(ext_radio_parms);
 217         return ret;
 218 }
 219
 220 /*
 221  * Poll the mailbox event field until any of the bits in the mask is set or a
 222  * timeout occurs (WL1271_EVENT_TIMEOUT in msecs)
 223  */
 224 static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask)
 225 {
 226         u32 events_vector, event;
 227         unsigned long timeout;
 228
 229         timeout = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
 230
 231         do {
 232                 if (time_after(jiffies, timeout)) {
 233                         ieee80211_queue_work(wl->hw, &wl->recovery_work);
 234                         return -ETIMEDOUT;
 235                 }
 236
 237                 msleep(1);
 238
 239                 /* read from both event fields */
 240                 wl1271_read(wl, wl->mbox_ptr[0], &events_vector,
 241                             sizeof(events_vector), false);
 242                 event = events_vector & mask;
 243                 wl1271_read(wl, wl->mbox_ptr[1], &events_vector,
 244                             sizeof(events_vector), false);
 245                 event |= events_vector & mask;
 246         } while (!event);
 247
 248         return 0;
 249 }
 250
 251 int wl1271_cmd_join(struct wl1271 *wl, u8 bss_type)
 252 {
 253         struct wl1271_cmd_join *join;
 254         int ret, i;
 255         u8 *bssid;
 256
 257         join = kzalloc(sizeof(*join), GFP_KERNEL);
 258         if (!join) {
 259                 ret = -ENOMEM;
 260                 goto out;
 261         }
 262
 263         wl1271_debug(DEBUG_CMD, "cmd join");
 264
 265         /* Reverse order BSSID */
 266         bssid = (u8 *) &join->bssid_lsb;
 267         for (i = 0; i < ETH_ALEN; i++)
 268                 bssid[i] = wl->bssid[ETH_ALEN - i - 1];
 269
 270         join->rx_config_options = cpu_to_le32(wl->rx_config);
 271         join->rx_filter_options = cpu_to_le32(wl->rx_filter);
 272         join->bss_type = bss_type;
 273         join->basic_rate_set = cpu_to_le32(wl->basic_rate_set);
 274
 275         if (wl->band == IEEE80211_BAND_5GHZ)
 276                 join->bss_type |= WL1271_JOIN_CMD_BSS_TYPE_5GHZ;
 277
 278         join->beacon_interval = cpu_to_le16(wl->beacon_int);
 279         join->dtim_interval = WL1271_DEFAULT_DTIM_PERIOD;
 280
 281         join->channel = wl->channel;
 282         join->ssid_len = wl->ssid_len;
 283         memcpy(join->ssid, wl->ssid, wl->ssid_len);
 284
 285         join->ctrl |= wl->session_counter << WL1271_JOIN_CMD_TX_SESSION_OFFSET;
 286
 287         /* reset TX security counters */
 288         wl->tx_security_last_seq = 0;
 289         wl->tx_security_seq = 0;
 290
 291         ret = wl1271_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join), 0);
 292         if (ret < 0) {
 293                 wl1271_error("failed to initiate cmd join");
 294                 goto out_free;
 295         }
 296
 297         ret = wl1271_cmd_wait_for_event(wl, JOIN_EVENT_COMPLETE_ID);
 298         if (ret < 0)
 299                 wl1271_error("cmd join event completion error");
 300
 301 out_free:
 302         kfree(join);
 303
 304 out:
 305         return ret;
 306 }
 307
 308 /**
 309  * send test command to firmware
 310  *
 311  * @wl: wl struct
 312  * @buf: buffer containing the command, with all headers, must work with dma
 313  * @len: length of the buffer
 314  * @answer: is answer needed
 315  */
 316 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
 317 {
 318         int ret;
 319         size_t res_len = 0;
 320
 321         wl1271_debug(DEBUG_CMD, "cmd test");
 322
 323         if (answer)
 324                 res_len = buf_len;
 325
 326         ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
 327
 328         if (ret < 0) {
 329                 wl1271_warning("TEST command failed");
 330                 return ret;
 331         }
 332
 333         return ret;
 334 }
 335
 336 /**
 337  * read acx from firmware
 338  *
 339  * @wl: wl struct
 340  * @id: acx id
 341  * @buf: buffer for the response, including all headers, must work with dma
 342  * @len: lenght of buf
 343  */
 344 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
 345 {
 346         struct acx_header *acx = buf;
 347         int ret;
 348
 349         wl1271_debug(DEBUG_CMD, "cmd interrogate");
 350
 351         acx->id = cpu_to_le16(id);
 352
 353         /* payload length, does not include any headers */
 354         acx->len = cpu_to_le16(len - sizeof(*acx));
 355
 356         ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len);
 357         if (ret < 0)
 358                 wl1271_error("INTERROGATE command failed");
 359
 360         return ret;
 361 }
 362
 363 /**
 364  * write acx value to firmware
 365  *
 366  * @wl: wl struct
 367  * @id: acx id
 368  * @buf: buffer containing acx, including all headers, must work with dma
 369  * @len: length of buf
 370  */
 371 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
 372 {
 373         struct acx_header *acx = buf;
 374         int ret;
 375
 376         wl1271_debug(DEBUG_CMD, "cmd configure");
 377
 378         acx->id = cpu_to_le16(id);
 379
 380         /* payload length, does not include any headers */
 381         acx->len = cpu_to_le16(len - sizeof(*acx));
 382
 383         ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0);
 384         if (ret < 0) {
 385                 wl1271_warning("CONFIGURE command NOK");
 386                 return ret;
 387         }
 388
 389         return 0;
 390 }
 391
 392 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
 393 {
 394         struct cmd_enabledisable_path *cmd;
 395         int ret;
 396         u16 cmd_rx, cmd_tx;
 397
 398         wl1271_debug(DEBUG_CMD, "cmd data path");
 399
 400         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 401         if (!cmd) {
 402                 ret = -ENOMEM;
 403                 goto out;
 404         }
 405
 406         /* the channel here is only used for calibration, so hardcoded to 1 */
 407         cmd->channel = 1;
 408
 409         if (enable) {
 410                 cmd_rx = CMD_ENABLE_RX;
 411                 cmd_tx = CMD_ENABLE_TX;
 412         } else {
 413                 cmd_rx = CMD_DISABLE_RX;
 414                 cmd_tx = CMD_DISABLE_TX;
 415         }
 416
 417         ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
 418         if (ret < 0) {
 419                 wl1271_error("rx %s cmd for channel %d failed",
 420                              enable ? "start" : "stop", cmd->channel);
 421                 goto out;
 422         }
 423
 424         wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
 425                      enable ? "start" : "stop", cmd->channel);
 426
 427         ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
 428         if (ret < 0) {
 429                 wl1271_error("tx %s cmd for channel %d failed",
 430                              enable ? "start" : "stop", cmd->channel);
 431                 goto out;
 432         }
 433
 434         wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
 435                      enable ? "start" : "stop", cmd->channel);
 436
 437 out:
 438         kfree(cmd);
 439         return ret;
 440 }
 441
 442 int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode, u32 rates, bool send)
 443 {
 444         struct wl1271_cmd_ps_params *ps_params = NULL;
 445         int ret = 0;
 446
 447         wl1271_debug(DEBUG_CMD, "cmd set ps mode");
 448
 449         ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
 450         if (!ps_params) {
 451                 ret = -ENOMEM;
 452                 goto out;
 453         }
 454
 455         ps_params->ps_mode = ps_mode;
 456         ps_params->send_null_data = send;
 457         ps_params->retries = wl->conf.conn.psm_entry_nullfunc_retries;
 458         ps_params->hang_over_period = wl->conf.conn.psm_entry_hangover_period;
 459         ps_params->null_data_rate = cpu_to_le32(rates);
 460
 461         ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
 462                               sizeof(*ps_params), 0);
 463         if (ret < 0) {
 464                 wl1271_error("cmd set_ps_mode failed");
 465                 goto out;
 466         }
 467
 468 out:
 469         kfree(ps_params);
 470         return ret;
 471 }
 472
 473 int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
 474                             void *buf, size_t buf_len, int index, u32 rates)
 475 {
 476         struct wl1271_cmd_template_set *cmd;
 477         int ret = 0;
 478
 479         wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
 480
 481         WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
 482         buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
 483
 484         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 485         if (!cmd) {
 486                 ret = -ENOMEM;
 487                 goto out;
 488         }
 489
 490         cmd->len = cpu_to_le16(buf_len);
 491         cmd->template_type = template_id;
 492         cmd->enabled_rates = cpu_to_le32(rates);
 493         cmd->short_retry_limit = wl->conf.tx.rc_conf.short_retry_limit;
 494         cmd->long_retry_limit = wl->conf.tx.rc_conf.long_retry_limit;
 495         cmd->index = index;
 496
 497         if (buf)
 498                 memcpy(cmd->template_data, buf, buf_len);
 499
 500         ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
 501         if (ret < 0) {
 502                 wl1271_warning("cmd set_template failed: %d", ret);
 503                 goto out_free;
 504         }
 505
 506 out_free:
 507         kfree(cmd);
 508
 509 out:
 510         return ret;
 511 }
 512
 513 int wl1271_cmd_build_null_data(struct wl1271 *wl)
 514 {
 515         struct sk_buff *skb = NULL;
 516         int size;
 517         void *ptr;
 518         int ret = -ENOMEM;
 519
 520
 521         if (wl->bss_type == BSS_TYPE_IBSS) {
 522                 size = sizeof(struct wl12xx_null_data_template);
 523                 ptr = NULL;
 524         } else {
 525                 skb = ieee80211_nullfunc_get(wl->hw, wl->vif);
 526                 if (!skb)
 527                         goto out;
 528                 size = skb->len;
 529                 ptr = skb->data;
 530         }
 531
 532         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, ptr, size, 0,
 533                                       wl->basic_rate);
 534
 535 out:
 536         dev_kfree_skb(skb);
 537         if (ret)
 538                 wl1271_warning("cmd buld null data failed %d", ret);
 539
 540         return ret;
 541
 542 }
 543
 544 int wl1271_cmd_build_klv_null_data(struct wl1271 *wl)
 545 {
 546         struct sk_buff *skb = NULL;
 547         int ret = -ENOMEM;
 548
 549         skb = ieee80211_nullfunc_get(wl->hw, wl->vif);
 550         if (!skb)
 551                 goto out;
 552
 553         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_KLV,
 554                                       skb->data, skb->len,
 555                                       CMD_TEMPL_KLV_IDX_NULL_DATA,
 556                                       wl->basic_rate);
 557
 558 out:
 559         dev_kfree_skb(skb);
 560         if (ret)
 561                 wl1271_warning("cmd build klv null data failed %d", ret);
 562
 563         return ret;
 564
 565 }
 566
 567 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, u16 aid)
 568 {
 569         struct sk_buff *skb;
 570         int ret = 0;
 571
 572         skb = ieee80211_pspoll_get(wl->hw, wl->vif);
 573         if (!skb)
 574                 goto out;
 575
 576         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, skb->data,
 577                                       skb->len, 0, wl->basic_rate_set);
 578
 579 out:
 580         dev_kfree_skb(skb);
 581         return ret;
 582 }
 583
 584 int wl1271_cmd_build_probe_req(struct wl1271 *wl,
 585                                const u8 *ssid, size_t ssid_len,
 586                                const u8 *ie, size_t ie_len, u8 band)
 587 {
 588         struct sk_buff *skb;
 589         int ret;
 590
 591         skb = ieee80211_probereq_get(wl->hw, wl->vif, ssid, ssid_len,
 592                                      ie, ie_len);
 593         if (!skb) {
 594                 ret = -ENOMEM;
 595                 goto out;
 596         }
 597
 598         wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len);
 599
 600         if (band == IEEE80211_BAND_2GHZ)
 601                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 602                                               skb->data, skb->len, 0,
 603                                               wl->conf.tx.basic_rate);
 604         else
 605                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
 606                                               skb->data, skb->len, 0,
 607                                               wl->conf.tx.basic_rate_5);
 608
 609 out:
 610         dev_kfree_skb(skb);
 611         return ret;
 612 }
 613
 614 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
 615                                               struct sk_buff *skb)
 616 {
 617         int ret;
 618
 619         if (!skb)
 620                 skb = ieee80211_ap_probereq_get(wl->hw, wl->vif);
 621         if (!skb)
 622                 goto out;
 623
 624         wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len);
 625
 626         if (wl->band == IEEE80211_BAND_2GHZ)
 627                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 628                                               skb->data, skb->len, 0,
 629                                               wl->conf.tx.basic_rate);
 630         else
 631                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
 632                                               skb->data, skb->len, 0,
 633                                               wl->conf.tx.basic_rate_5);
 634
 635         if (ret < 0)
 636                 wl1271_error("Unable to set ap probe request template.");
 637
 638 out:
 639         return skb;
 640 }
 641
 642 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, __be32 ip_addr)
 643 {
 644         int ret;
 645         struct wl12xx_arp_rsp_template tmpl;
 646         struct ieee80211_hdr_3addr *hdr;
 647         struct arphdr *arp_hdr;
 648
 649         memset(&tmpl, 0, sizeof(tmpl));
 650
 651         /* mac80211 header */
 652         hdr = &tmpl.hdr;
 653         hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 654                                          IEEE80211_STYPE_DATA |
 655                                          IEEE80211_FCTL_TODS);
 656         memcpy(hdr->addr1, wl->vif->bss_conf.bssid, ETH_ALEN);
 657         memcpy(hdr->addr2, wl->vif->addr, ETH_ALEN);
 658         memset(hdr->addr3, 0xff, ETH_ALEN);
 659
 660         /* llc layer */
 661         memcpy(tmpl.llc_hdr, rfc1042_header, sizeof(rfc1042_header));
 662         tmpl.llc_type = cpu_to_be16(ETH_P_ARP);
 663
 664         /* arp header */
 665         arp_hdr = &tmpl.arp_hdr;
 666         arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
 667         arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
 668         arp_hdr->ar_hln = ETH_ALEN;
 669         arp_hdr->ar_pln = 4;
 670         arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
 671
 672         /* arp payload */
 673         memcpy(tmpl.sender_hw, wl->vif->addr, ETH_ALEN);
 674         tmpl.sender_ip = ip_addr;
 675
 676         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_ARP_RSP,
 677                                       &tmpl, sizeof(tmpl), 0,
 678                                       wl->basic_rate);
 679
 680         return ret;
 681 }
 682
 683 int wl1271_build_qos_null_data(struct wl1271 *wl)
 684 {
 685         struct ieee80211_qos_hdr template;
 686
 687         memset(&template, 0, sizeof(template));
 688
 689         memcpy(template.addr1, wl->bssid, ETH_ALEN);
 690         memcpy(template.addr2, wl->mac_addr, ETH_ALEN);
 691         memcpy(template.addr3, wl->bssid, ETH_ALEN);
 692
 693         template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 694                                              IEEE80211_STYPE_QOS_NULLFUNC |
 695                                              IEEE80211_FCTL_TODS);
 696
 697         /* FIXME: not sure what priority to use here */
 698         template.qos_ctrl = cpu_to_le16(0);
 699
 700         return wl1271_cmd_template_set(wl, CMD_TEMPL_QOS_NULL_DATA, &template,
 701                                        sizeof(template), 0,
 702                                        wl->basic_rate);
 703 }
 704
 705 int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id)
 706 {
 707         struct wl1271_cmd_set_keys *cmd;
 708         int ret = 0;
 709
 710         wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
 711
 712         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 713         if (!cmd) {
 714                 ret = -ENOMEM;
 715                 goto out;
 716         }
 717
 718         cmd->id = id;
 719         cmd->key_action = cpu_to_le16(KEY_SET_ID);
 720         cmd->key_type = KEY_WEP;
 721
 722         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 723         if (ret < 0) {
 724                 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
 725                 goto out;
 726         }
 727
 728 out:
 729         kfree(cmd);
 730
 731         return ret;
 732 }
 733
 734 int wl1271_cmd_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
 735                        u8 key_size, const u8 *key, const u8 *addr,
 736                        u32 tx_seq_32, u16 tx_seq_16)
 737 {
 738         struct wl1271_cmd_set_keys *cmd;
 739         int ret = 0;
 740
 741         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 742         if (!cmd) {
 743                 ret = -ENOMEM;
 744                 goto out;
 745         }
 746
 747         if (key_type != KEY_WEP)
 748                 memcpy(cmd->addr, addr, ETH_ALEN);
 749
 750         cmd->key_action = cpu_to_le16(action);
 751         cmd->key_size = key_size;
 752         cmd->key_type = key_type;
 753
 754         cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
 755         cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
 756
 757         /* we have only one SSID profile */
 758         cmd->ssid_profile = 0;
 759
 760         cmd->id = id;
 761
 762         if (key_type == KEY_TKIP) {
 763                 /*
 764                  * We get the key in the following form:
 765                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
 766                  * but the target is expecting:
 767                  * TKIP - RX MIC - TX MIC
 768                  */
 769                 memcpy(cmd->key, key, 16);
 770                 memcpy(cmd->key + 16, key + 24, 8);
 771                 memcpy(cmd->key + 24, key + 16, 8);
 772
 773         } else {
 774                 memcpy(cmd->key, key, key_size);
 775         }
 776
 777         wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
 778
 779         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 780         if (ret < 0) {
 781                 wl1271_warning("could not set keys");
 782         goto out;
 783         }
 784
 785 out:
 786         kfree(cmd);
 787
 788         return ret;
 789 }
 790
 791 int wl1271_cmd_disconnect(struct wl1271 *wl)
 792 {
 793         struct wl1271_cmd_disconnect *cmd;
 794         int ret = 0;
 795
 796         wl1271_debug(DEBUG_CMD, "cmd disconnect");
 797
 798         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 799         if (!cmd) {
 800                 ret = -ENOMEM;
 801                 goto out;
 802         }
 803
 804         cmd->rx_config_options = cpu_to_le32(wl->rx_config);
 805         cmd->rx_filter_options = cpu_to_le32(wl->rx_filter);
 806         /* disconnect reason is not used in immediate disconnections */
 807         cmd->type = DISCONNECT_IMMEDIATE;
 808
 809         ret = wl1271_cmd_send(wl, CMD_DISCONNECT, cmd, sizeof(*cmd), 0);
 810         if (ret < 0) {
 811                 wl1271_error("failed to send disconnect command");
 812                 goto out_free;
 813         }
 814
 815         ret = wl1271_cmd_wait_for_event(wl, DISCONNECT_EVENT_COMPLETE_ID);
 816         if (ret < 0)
 817                 wl1271_error("cmd disconnect event completion error");
 818
 819 out_free:
 820         kfree(cmd);
 821
 822 out:
 823         return ret;
 824 }
 825
 826 int wl1271_cmd_set_sta_state(struct wl1271 *wl)
 827 {
 828         struct wl1271_cmd_set_sta_state *cmd;
 829         int ret = 0;
 830
 831         wl1271_debug(DEBUG_CMD, "cmd set sta state");
 832
 833         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 834         if (!cmd) {
 835                 ret = -ENOMEM;
 836                 goto out;
 837         }
 838
 839         cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
 840
 841         ret = wl1271_cmd_send(wl, CMD_SET_STA_STATE, cmd, sizeof(*cmd), 0);
 842         if (ret < 0) {
 843                 wl1271_error("failed to send set STA state command");
 844                 goto out_free;
 845         }
 846
 847 out_free:
 848         kfree(cmd);
 849
 850 out:
 851         return ret;
 852 }