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 #include <linux/slab.h>
  31
  32 #include "wl1271.h"
  33 #include "wl1271_reg.h"
  34 #include "wl1271_io.h"
  35 #include "wl1271_acx.h"
  36 #include "wl12xx_80211.h"
  37 #include "wl1271_cmd.h"
  38 #include "wl1271_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                 ret = -EIO;
  98         }
  99
 100         wl1271_write32(wl, ACX_REG_INTERRUPT_ACK,
 101                        WL1271_ACX_INTR_CMD_COMPLETE);
 102
 103 out:
 104         return ret;
 105 }
 106
 107 int wl1271_cmd_general_parms(struct wl1271 *wl)
 108 {
 109         struct wl1271_general_parms_cmd *gen_parms;
 110         int ret;
 111
 112         if (!wl->nvs)
 113                 return -ENODEV;
 114
 115         gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL);
 116         if (!gen_parms)
 117                 return -ENOMEM;
 118
 119         gen_parms->test.id = TEST_CMD_INI_FILE_GENERAL_PARAM;
 120
 121         memcpy(&gen_parms->general_params, &wl->nvs->general_params,
 122                sizeof(struct wl1271_ini_general_params));
 123
 124         ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), 0);
 125         if (ret < 0)
 126                 wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
 127
 128         kfree(gen_parms);
 129         return ret;
 130 }
 131
 132 int wl1271_cmd_radio_parms(struct wl1271 *wl)
 133 {
 134         struct wl1271_radio_parms_cmd *radio_parms;
 135         struct wl1271_ini_general_params *gp = &wl->nvs->general_params;
 136         int ret;
 137
 138         if (!wl->nvs)
 139                 return -ENODEV;
 140
 141         radio_parms = kzalloc(sizeof(*radio_parms), GFP_KERNEL);
 142         if (!radio_parms)
 143                 return -ENOMEM;
 144
 145         radio_parms->test.id = TEST_CMD_INI_FILE_RADIO_PARAM;
 146
 147         /* 2.4GHz parameters */
 148         memcpy(&radio_parms->static_params_2, &wl->nvs->stat_radio_params_2,
 149                sizeof(struct wl1271_ini_band_params_2));
 150         memcpy(&radio_parms->dyn_params_2,
 151                &wl->nvs->dyn_radio_params_2[gp->tx_bip_fem_manufacturer].params,
 152                sizeof(struct wl1271_ini_fem_params_2));
 153
 154         /* 5GHz parameters */
 155         memcpy(&radio_parms->static_params_5,
 156                &wl->nvs->stat_radio_params_5,
 157                sizeof(struct wl1271_ini_band_params_5));
 158         memcpy(&radio_parms->dyn_params_5,
 159                &wl->nvs->dyn_radio_params_5[gp->tx_bip_fem_manufacturer].params,
 160                sizeof(struct wl1271_ini_fem_params_5));
 161
 162         wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_RADIO_PARAM: ",
 163                     radio_parms, sizeof(*radio_parms));
 164
 165         ret = wl1271_cmd_test(wl, radio_parms, sizeof(*radio_parms), 0);
 166         if (ret < 0)
 167                 wl1271_warning("CMD_INI_FILE_RADIO_PARAM failed");
 168
 169         kfree(radio_parms);
 170         return ret;
 171 }
 172
 173 /*
 174  * Poll the mailbox event field until any of the bits in the mask is set or a
 175  * timeout occurs (WL1271_EVENT_TIMEOUT in msecs)
 176  */
 177 static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask)
 178 {
 179         u32 events_vector, event;
 180         unsigned long timeout;
 181
 182         timeout = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
 183
 184         do {
 185                 if (time_after(jiffies, timeout))
 186                         return -ETIMEDOUT;
 187
 188                 msleep(1);
 189
 190                 /* read from both event fields */
 191                 wl1271_read(wl, wl->mbox_ptr[0], &events_vector,
 192                             sizeof(events_vector), false);
 193                 event = events_vector & mask;
 194                 wl1271_read(wl, wl->mbox_ptr[1], &events_vector,
 195                             sizeof(events_vector), false);
 196                 event |= events_vector & mask;
 197         } while (!event);
 198
 199         return 0;
 200 }
 201
 202 int wl1271_cmd_join(struct wl1271 *wl, u8 bss_type)
 203 {
 204         struct wl1271_cmd_join *join;
 205         int ret, i;
 206         u8 *bssid;
 207
 208         join = kzalloc(sizeof(*join), GFP_KERNEL);
 209         if (!join) {
 210                 ret = -ENOMEM;
 211                 goto out;
 212         }
 213
 214         wl1271_debug(DEBUG_CMD, "cmd join");
 215
 216         /* Reverse order BSSID */
 217         bssid = (u8 *) &join->bssid_lsb;
 218         for (i = 0; i < ETH_ALEN; i++)
 219                 bssid[i] = wl->bssid[ETH_ALEN - i - 1];
 220
 221         join->rx_config_options = cpu_to_le32(wl->rx_config);
 222         join->rx_filter_options = cpu_to_le32(wl->rx_filter);
 223         join->bss_type = bss_type;
 224         join->basic_rate_set = cpu_to_le32(wl->basic_rate_set);
 225
 226         if (wl->band == IEEE80211_BAND_5GHZ)
 227                 join->bss_type |= WL1271_JOIN_CMD_BSS_TYPE_5GHZ;
 228
 229         join->beacon_interval = cpu_to_le16(wl->beacon_int);
 230         join->dtim_interval = WL1271_DEFAULT_DTIM_PERIOD;
 231
 232         join->channel = wl->channel;
 233         join->ssid_len = wl->ssid_len;
 234         memcpy(join->ssid, wl->ssid, wl->ssid_len);
 235
 236         join->ctrl |= wl->session_counter << WL1271_JOIN_CMD_TX_SESSION_OFFSET;
 237
 238         /* reset TX security counters */
 239         wl->tx_security_last_seq = 0;
 240         wl->tx_security_seq = 0;
 241
 242         ret = wl1271_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join), 0);
 243         if (ret < 0) {
 244                 wl1271_error("failed to initiate cmd join");
 245                 goto out_free;
 246         }
 247
 248         ret = wl1271_cmd_wait_for_event(wl, JOIN_EVENT_COMPLETE_ID);
 249         if (ret < 0)
 250                 wl1271_error("cmd join event completion error");
 251
 252 out_free:
 253         kfree(join);
 254
 255 out:
 256         return ret;
 257 }
 258
 259 /**
 260  * send test command to firmware
 261  *
 262  * @wl: wl struct
 263  * @buf: buffer containing the command, with all headers, must work with dma
 264  * @len: length of the buffer
 265  * @answer: is answer needed
 266  */
 267 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
 268 {
 269         int ret;
 270         size_t res_len = 0;
 271
 272         wl1271_debug(DEBUG_CMD, "cmd test");
 273
 274         if (answer)
 275                 res_len = buf_len;
 276
 277         ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
 278
 279         if (ret < 0) {
 280                 wl1271_warning("TEST command failed");
 281                 return ret;
 282         }
 283
 284         return ret;
 285 }
 286
 287 /**
 288  * read acx from firmware
 289  *
 290  * @wl: wl struct
 291  * @id: acx id
 292  * @buf: buffer for the response, including all headers, must work with dma
 293  * @len: lenght of buf
 294  */
 295 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
 296 {
 297         struct acx_header *acx = buf;
 298         int ret;
 299
 300         wl1271_debug(DEBUG_CMD, "cmd interrogate");
 301
 302         acx->id = cpu_to_le16(id);
 303
 304         /* payload length, does not include any headers */
 305         acx->len = cpu_to_le16(len - sizeof(*acx));
 306
 307         ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len);
 308         if (ret < 0)
 309                 wl1271_error("INTERROGATE command failed");
 310
 311         return ret;
 312 }
 313
 314 /**
 315  * write acx value to firmware
 316  *
 317  * @wl: wl struct
 318  * @id: acx id
 319  * @buf: buffer containing acx, including all headers, must work with dma
 320  * @len: length of buf
 321  */
 322 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
 323 {
 324         struct acx_header *acx = buf;
 325         int ret;
 326
 327         wl1271_debug(DEBUG_CMD, "cmd configure");
 328
 329         acx->id = cpu_to_le16(id);
 330
 331         /* payload length, does not include any headers */
 332         acx->len = cpu_to_le16(len - sizeof(*acx));
 333
 334         ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0);
 335         if (ret < 0) {
 336                 wl1271_warning("CONFIGURE command NOK");
 337                 return ret;
 338         }
 339
 340         return 0;
 341 }
 342
 343 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
 344 {
 345         struct cmd_enabledisable_path *cmd;
 346         int ret;
 347         u16 cmd_rx, cmd_tx;
 348
 349         wl1271_debug(DEBUG_CMD, "cmd data path");
 350
 351         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 352         if (!cmd) {
 353                 ret = -ENOMEM;
 354                 goto out;
 355         }
 356
 357         /* the channel here is only used for calibration, so hardcoded to 1 */
 358         cmd->channel = 1;
 359
 360         if (enable) {
 361                 cmd_rx = CMD_ENABLE_RX;
 362                 cmd_tx = CMD_ENABLE_TX;
 363         } else {
 364                 cmd_rx = CMD_DISABLE_RX;
 365                 cmd_tx = CMD_DISABLE_TX;
 366         }
 367
 368         ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
 369         if (ret < 0) {
 370                 wl1271_error("rx %s cmd for channel %d failed",
 371                              enable ? "start" : "stop", cmd->channel);
 372                 goto out;
 373         }
 374
 375         wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
 376                      enable ? "start" : "stop", cmd->channel);
 377
 378         ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
 379         if (ret < 0) {
 380                 wl1271_error("tx %s cmd for channel %d failed",
 381                              enable ? "start" : "stop", cmd->channel);
 382                 goto out;
 383         }
 384
 385         wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
 386                      enable ? "start" : "stop", cmd->channel);
 387
 388 out:
 389         kfree(cmd);
 390         return ret;
 391 }
 392
 393 int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode, bool send)
 394 {
 395         struct wl1271_cmd_ps_params *ps_params = NULL;
 396         int ret = 0;
 397
 398         /* FIXME: this should be in ps.c */
 399         ret = wl1271_acx_wake_up_conditions(wl);
 400         if (ret < 0) {
 401                 wl1271_error("couldn't set wake up conditions");
 402                 goto out;
 403         }
 404
 405         wl1271_debug(DEBUG_CMD, "cmd set ps mode");
 406
 407         ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
 408         if (!ps_params) {
 409                 ret = -ENOMEM;
 410                 goto out;
 411         }
 412
 413         ps_params->ps_mode = ps_mode;
 414         ps_params->send_null_data = send;
 415         ps_params->retries = 5;
 416         ps_params->hang_over_period = 1;
 417         ps_params->null_data_rate = cpu_to_le32(wl->basic_rate_set);
 418
 419         ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
 420                               sizeof(*ps_params), 0);
 421         if (ret < 0) {
 422                 wl1271_error("cmd set_ps_mode failed");
 423                 goto out;
 424         }
 425
 426 out:
 427         kfree(ps_params);
 428         return ret;
 429 }
 430
 431 int wl1271_cmd_read_memory(struct wl1271 *wl, u32 addr, void *answer,
 432                            size_t len)
 433 {
 434         struct cmd_read_write_memory *cmd;
 435         int ret = 0;
 436
 437         wl1271_debug(DEBUG_CMD, "cmd read memory");
 438
 439         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 440         if (!cmd) {
 441                 ret = -ENOMEM;
 442                 goto out;
 443         }
 444
 445         WARN_ON(len > MAX_READ_SIZE);
 446         len = min_t(size_t, len, MAX_READ_SIZE);
 447
 448         cmd->addr = cpu_to_le32(addr);
 449         cmd->size = cpu_to_le32(len);
 450
 451         ret = wl1271_cmd_send(wl, CMD_READ_MEMORY, cmd, sizeof(*cmd),
 452                               sizeof(*cmd));
 453         if (ret < 0) {
 454                 wl1271_error("read memory command failed: %d", ret);
 455                 goto out;
 456         }
 457
 458         /* the read command got in */
 459         memcpy(answer, cmd->value, len);
 460
 461 out:
 462         kfree(cmd);
 463         return ret;
 464 }
 465
 466 int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
 467                             void *buf, size_t buf_len, int index, u32 rates)
 468 {
 469         struct wl1271_cmd_template_set *cmd;
 470         int ret = 0;
 471
 472         wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
 473
 474         WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
 475         buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
 476
 477         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 478         if (!cmd) {
 479                 ret = -ENOMEM;
 480                 goto out;
 481         }
 482
 483         cmd->len = cpu_to_le16(buf_len);
 484         cmd->template_type = template_id;
 485         cmd->enabled_rates = cpu_to_le32(rates);
 486         cmd->short_retry_limit = wl->conf.tx.rc_conf.short_retry_limit;
 487         cmd->long_retry_limit = wl->conf.tx.rc_conf.long_retry_limit;
 488         cmd->index = index;
 489
 490         if (buf)
 491                 memcpy(cmd->template_data, buf, buf_len);
 492
 493         ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
 494         if (ret < 0) {
 495                 wl1271_warning("cmd set_template failed: %d", ret);
 496                 goto out_free;
 497         }
 498
 499 out_free:
 500         kfree(cmd);
 501
 502 out:
 503         return ret;
 504 }
 505
 506 int wl1271_cmd_build_null_data(struct wl1271 *wl)
 507 {
 508         struct sk_buff *skb = NULL;
 509         int size;
 510         void *ptr;
 511         int ret = -ENOMEM;
 512
 513
 514         if (wl->bss_type == BSS_TYPE_IBSS) {
 515                 size = sizeof(struct wl12xx_null_data_template);
 516                 ptr = NULL;
 517         } else {
 518                 skb = ieee80211_nullfunc_get(wl->hw, wl->vif);
 519                 if (!skb)
 520                         goto out;
 521                 size = skb->len;
 522                 ptr = skb->data;
 523         }
 524
 525         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, ptr, size, 0,
 526                                       WL1271_RATE_AUTOMATIC);
 527
 528 out:
 529         dev_kfree_skb(skb);
 530         if (ret)
 531                 wl1271_warning("cmd buld null data failed %d", ret);
 532
 533         return ret;
 534
 535 }
 536
 537 int wl1271_cmd_build_klv_null_data(struct wl1271 *wl)
 538 {
 539         struct sk_buff *skb = NULL;
 540         int ret = -ENOMEM;
 541
 542         skb = ieee80211_nullfunc_get(wl->hw, wl->vif);
 543         if (!skb)
 544                 goto out;
 545
 546         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_KLV,
 547                                       skb->data, skb->len,
 548                                       CMD_TEMPL_KLV_IDX_NULL_DATA,
 549                                       WL1271_RATE_AUTOMATIC);
 550
 551 out:
 552         dev_kfree_skb(skb);
 553         if (ret)
 554                 wl1271_warning("cmd build klv null data failed %d", ret);
 555
 556         return ret;
 557
 558 }
 559
 560 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, u16 aid)
 561 {
 562         struct sk_buff *skb;
 563         int ret = 0;
 564
 565         skb = ieee80211_pspoll_get(wl->hw, wl->vif);
 566         if (!skb)
 567                 goto out;
 568
 569         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, skb->data,
 570                                       skb->len, 0, wl->basic_rate_set);
 571
 572 out:
 573         dev_kfree_skb(skb);
 574         return ret;
 575 }
 576
 577 int wl1271_cmd_build_probe_req(struct wl1271 *wl,
 578                                const u8 *ssid, size_t ssid_len,
 579                                const u8 *ie, size_t ie_len, u8 band)
 580 {
 581         struct sk_buff *skb;
 582         int ret;
 583
 584         skb = ieee80211_probereq_get(wl->hw, wl->vif, ssid, ssid_len,
 585                                      ie, ie_len);
 586         if (!skb) {
 587                 ret = -ENOMEM;
 588                 goto out;
 589         }
 590
 591         wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len);
 592
 593         if (band == IEEE80211_BAND_2GHZ)
 594                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 595                                               skb->data, skb->len, 0,
 596                                               wl->conf.tx.basic_rate);
 597         else
 598                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
 599                                               skb->data, skb->len, 0,
 600                                               wl->conf.tx.basic_rate_5);
 601
 602 out:
 603         dev_kfree_skb(skb);
 604         return ret;
 605 }
 606
 607 int wl1271_build_qos_null_data(struct wl1271 *wl)
 608 {
 609         struct ieee80211_qos_hdr template;
 610
 611         memset(&template, 0, sizeof(template));
 612
 613         memcpy(template.addr1, wl->bssid, ETH_ALEN);
 614         memcpy(template.addr2, wl->mac_addr, ETH_ALEN);
 615         memcpy(template.addr3, wl->bssid, ETH_ALEN);
 616
 617         template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 618                                              IEEE80211_STYPE_QOS_NULLFUNC |
 619                                              IEEE80211_FCTL_TODS);
 620
 621         /* FIXME: not sure what priority to use here */
 622         template.qos_ctrl = cpu_to_le16(0);
 623
 624         return wl1271_cmd_template_set(wl, CMD_TEMPL_QOS_NULL_DATA, &template,
 625                                        sizeof(template), 0,
 626                                        WL1271_RATE_AUTOMATIC);
 627 }
 628
 629 int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id)
 630 {
 631         struct wl1271_cmd_set_keys *cmd;
 632         int ret = 0;
 633
 634         wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
 635
 636         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 637         if (!cmd) {
 638                 ret = -ENOMEM;
 639                 goto out;
 640         }
 641
 642         cmd->id = id;
 643         cmd->key_action = cpu_to_le16(KEY_SET_ID);
 644         cmd->key_type = KEY_WEP;
 645
 646         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 647         if (ret < 0) {
 648                 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
 649                 goto out;
 650         }
 651
 652 out:
 653         kfree(cmd);
 654
 655         return ret;
 656 }
 657
 658 int wl1271_cmd_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
 659                        u8 key_size, const u8 *key, const u8 *addr,
 660                        u32 tx_seq_32, u16 tx_seq_16)
 661 {
 662         struct wl1271_cmd_set_keys *cmd;
 663         int ret = 0;
 664
 665         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 666         if (!cmd) {
 667                 ret = -ENOMEM;
 668                 goto out;
 669         }
 670
 671         if (key_type != KEY_WEP)
 672                 memcpy(cmd->addr, addr, ETH_ALEN);
 673
 674         cmd->key_action = cpu_to_le16(action);
 675         cmd->key_size = key_size;
 676         cmd->key_type = key_type;
 677
 678         cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
 679         cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
 680
 681         /* we have only one SSID profile */
 682         cmd->ssid_profile = 0;
 683
 684         cmd->id = id;
 685
 686         if (key_type == KEY_TKIP) {
 687                 /*
 688                  * We get the key in the following form:
 689                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
 690                  * but the target is expecting:
 691                  * TKIP - RX MIC - TX MIC
 692                  */
 693                 memcpy(cmd->key, key, 16);
 694                 memcpy(cmd->key + 16, key + 24, 8);
 695                 memcpy(cmd->key + 24, key + 16, 8);
 696
 697         } else {
 698                 memcpy(cmd->key, key, key_size);
 699         }
 700
 701         wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
 702
 703         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 704         if (ret < 0) {
 705                 wl1271_warning("could not set keys");
 706         goto out;
 707         }
 708
 709 out:
 710         kfree(cmd);
 711
 712         return ret;
 713 }
 714
 715 int wl1271_cmd_disconnect(struct wl1271 *wl)
 716 {
 717         struct wl1271_cmd_disconnect *cmd;
 718         int ret = 0;
 719
 720         wl1271_debug(DEBUG_CMD, "cmd disconnect");
 721
 722         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 723         if (!cmd) {
 724                 ret = -ENOMEM;
 725                 goto out;
 726         }
 727
 728         cmd->rx_config_options = cpu_to_le32(wl->rx_config);
 729         cmd->rx_filter_options = cpu_to_le32(wl->rx_filter);
 730         /* disconnect reason is not used in immediate disconnections */
 731         cmd->type = DISCONNECT_IMMEDIATE;
 732
 733         ret = wl1271_cmd_send(wl, CMD_DISCONNECT, cmd, sizeof(*cmd), 0);
 734         if (ret < 0) {
 735                 wl1271_error("failed to send disconnect command");
 736                 goto out_free;
 737         }
 738
 739         ret = wl1271_cmd_wait_for_event(wl, DISCONNECT_EVENT_COMPLETE_ID);
 740         if (ret < 0)
 741                 wl1271_error("cmd disconnect event completion error");
 742
 743 out_free:
 744         kfree(cmd);
 745
 746 out:
 747         return ret;
 748 }