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 #include "tx.h"
  40
  41 #define WL1271_CMD_FAST_POLL_COUNT       50
  42
  43 /*
  44  * send command to firmware
  45  *
  46  * @wl: wl struct
  47  * @id: command id
  48  * @buf: buffer containing the command, must work with dma
  49  * @len: length of the buffer
  50  */
  51 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
  52                     size_t res_len)
  53 {
  54         struct wl1271_cmd_header *cmd;
  55         unsigned long timeout;
  56         u32 intr;
  57         int ret = 0;
  58         u16 status;
  59         u16 poll_count = 0;
  60
  61         cmd = buf;
  62         cmd->id = cpu_to_le16(id);
  63         cmd->status = 0;
  64
  65         WARN_ON(len % 4 != 0);
  66
  67         wl1271_write(wl, wl->cmd_box_addr, buf, len, false);
  68
  69         wl1271_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
  70
  71         timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
  72
  73         intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  74         while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
  75                 if (time_after(jiffies, timeout)) {
  76                         wl1271_error("command complete timeout");
  77                         ret = -ETIMEDOUT;
  78                         goto out;
  79                 }
  80
  81                 poll_count++;
  82                 if (poll_count < WL1271_CMD_FAST_POLL_COUNT)
  83                         udelay(10);
  84                 else
  85                         msleep(1);
  86
  87                 intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  88         }
  89
  90         /* read back the status code of the command */
  91         if (res_len == 0)
  92                 res_len = sizeof(struct wl1271_cmd_header);
  93         wl1271_read(wl, wl->cmd_box_addr, cmd, res_len, false);
  94
  95         status = le16_to_cpu(cmd->status);
  96         if (status != CMD_STATUS_SUCCESS) {
  97                 wl1271_error("command execute failure %d", status);
  98                 ieee80211_queue_work(wl->hw, &wl->recovery_work);
  99                 ret = -EIO;
 100         }
 101
 102         wl1271_write32(wl, ACX_REG_INTERRUPT_ACK,
 103                        WL1271_ACX_INTR_CMD_COMPLETE);
 104
 105 out:
 106         return ret;
 107 }
 108
 109 int wl1271_cmd_general_parms(struct wl1271 *wl)
 110 {
 111         struct wl1271_general_parms_cmd *gen_parms;
 112         struct wl1271_ini_general_params *gp = &wl->nvs->general_params;
 113         bool answer = false;
 114         int ret;
 115
 116         if (!wl->nvs)
 117                 return -ENODEV;
 118
 119         gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL);
 120         if (!gen_parms)
 121                 return -ENOMEM;
 122
 123         gen_parms->test.id = TEST_CMD_INI_FILE_GENERAL_PARAM;
 124
 125         memcpy(&gen_parms->general_params, gp, sizeof(*gp));
 126
 127         if (gp->tx_bip_fem_auto_detect)
 128                 answer = true;
 129
 130         ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), answer);
 131         if (ret < 0) {
 132                 wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
 133                 goto out;
 134         }
 135
 136         gp->tx_bip_fem_manufacturer =
 137                 gen_parms->general_params.tx_bip_fem_manufacturer;
 138
 139         wl1271_debug(DEBUG_CMD, "FEM autodetect: %s, manufacturer: %d\n",
 140                      answer ? "auto" : "manual", gp->tx_bip_fem_manufacturer);
 141
 142 out:
 143         kfree(gen_parms);
 144         return ret;
 145 }
 146
 147 int wl1271_cmd_radio_parms(struct wl1271 *wl)
 148 {
 149         struct wl1271_radio_parms_cmd *radio_parms;
 150         struct wl1271_ini_general_params *gp = &wl->nvs->general_params;
 151         int ret;
 152
 153         if (!wl->nvs)
 154                 return -ENODEV;
 155
 156         radio_parms = kzalloc(sizeof(*radio_parms), GFP_KERNEL);
 157         if (!radio_parms)
 158                 return -ENOMEM;
 159
 160         radio_parms->test.id = TEST_CMD_INI_FILE_RADIO_PARAM;
 161
 162         /* 2.4GHz parameters */
 163         memcpy(&radio_parms->static_params_2, &wl->nvs->stat_radio_params_2,
 164                sizeof(struct wl1271_ini_band_params_2));
 165         memcpy(&radio_parms->dyn_params_2,
 166                &wl->nvs->dyn_radio_params_2[gp->tx_bip_fem_manufacturer].params,
 167                sizeof(struct wl1271_ini_fem_params_2));
 168
 169         /* 5GHz parameters */
 170         memcpy(&radio_parms->static_params_5,
 171                &wl->nvs->stat_radio_params_5,
 172                sizeof(struct wl1271_ini_band_params_5));
 173         memcpy(&radio_parms->dyn_params_5,
 174                &wl->nvs->dyn_radio_params_5[gp->tx_bip_fem_manufacturer].params,
 175                sizeof(struct wl1271_ini_fem_params_5));
 176
 177         wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_RADIO_PARAM: ",
 178                     radio_parms, sizeof(*radio_parms));
 179
 180         ret = wl1271_cmd_test(wl, radio_parms, sizeof(*radio_parms), 0);
 181         if (ret < 0)
 182                 wl1271_warning("CMD_INI_FILE_RADIO_PARAM failed");
 183
 184         kfree(radio_parms);
 185         return ret;
 186 }
 187
 188 int wl1271_cmd_ext_radio_parms(struct wl1271 *wl)
 189 {
 190         struct wl1271_ext_radio_parms_cmd *ext_radio_parms;
 191         struct conf_rf_settings *rf = &wl->conf.rf;
 192         int ret;
 193
 194         if (!wl->nvs)
 195                 return -ENODEV;
 196
 197         ext_radio_parms = kzalloc(sizeof(*ext_radio_parms), GFP_KERNEL);
 198         if (!ext_radio_parms)
 199                 return -ENOMEM;
 200
 201         ext_radio_parms->test.id = TEST_CMD_INI_FILE_RF_EXTENDED_PARAM;
 202
 203         memcpy(ext_radio_parms->tx_per_channel_power_compensation_2,
 204                rf->tx_per_channel_power_compensation_2,
 205                CONF_TX_PWR_COMPENSATION_LEN_2);
 206         memcpy(ext_radio_parms->tx_per_channel_power_compensation_5,
 207                rf->tx_per_channel_power_compensation_5,
 208                CONF_TX_PWR_COMPENSATION_LEN_5);
 209
 210         wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_EXT_RADIO_PARAM: ",
 211                     ext_radio_parms, sizeof(*ext_radio_parms));
 212
 213         ret = wl1271_cmd_test(wl, ext_radio_parms, sizeof(*ext_radio_parms), 0);
 214         if (ret < 0)
 215                 wl1271_warning("TEST_CMD_INI_FILE_RF_EXTENDED_PARAM failed");
 216
 217         kfree(ext_radio_parms);
 218         return ret;
 219 }
 220
 221 /*
 222  * Poll the mailbox event field until any of the bits in the mask is set or a
 223  * timeout occurs (WL1271_EVENT_TIMEOUT in msecs)
 224  */
 225 static int wl1271_cmd_wait_for_event_or_timeout(struct wl1271 *wl, u32 mask)
 226 {
 227         u32 events_vector, event;
 228         unsigned long timeout;
 229
 230         timeout = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
 231
 232         do {
 233                 if (time_after(jiffies, timeout)) {
 234                         wl1271_debug(DEBUG_CMD, "timeout waiting for event %d",
 235                                      (int)mask);
 236                         return -ETIMEDOUT;
 237                 }
 238
 239                 msleep(1);
 240
 241                 /* read from both event fields */
 242                 wl1271_read(wl, wl->mbox_ptr[0], &events_vector,
 243                             sizeof(events_vector), false);
 244                 event = events_vector & mask;
 245                 wl1271_read(wl, wl->mbox_ptr[1], &events_vector,
 246                             sizeof(events_vector), false);
 247                 event |= events_vector & mask;
 248         } while (!event);
 249
 250         return 0;
 251 }
 252
 253 static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask)
 254 {
 255         int ret;
 256
 257         ret = wl1271_cmd_wait_for_event_or_timeout(wl, mask);
 258         if (ret != 0) {
 259                 ieee80211_queue_work(wl->hw, &wl->recovery_work);
 260                 return ret;
 261         }
 262
 263         return 0;
 264 }
 265
 266 int wl1271_cmd_join(struct wl1271 *wl, u8 bss_type)
 267 {
 268         struct wl1271_cmd_join *join;
 269         int ret, i;
 270         u8 *bssid;
 271
 272         join = kzalloc(sizeof(*join), GFP_KERNEL);
 273         if (!join) {
 274                 ret = -ENOMEM;
 275                 goto out;
 276         }
 277
 278         wl1271_debug(DEBUG_CMD, "cmd join");
 279
 280         /* Reverse order BSSID */
 281         bssid = (u8 *) &join->bssid_lsb;
 282         for (i = 0; i < ETH_ALEN; i++)
 283                 bssid[i] = wl->bssid[ETH_ALEN - i - 1];
 284
 285         join->rx_config_options = cpu_to_le32(wl->rx_config);
 286         join->rx_filter_options = cpu_to_le32(wl->rx_filter);
 287         join->bss_type = bss_type;
 288         join->basic_rate_set = cpu_to_le32(wl->basic_rate_set);
 289         join->supported_rate_set = cpu_to_le32(wl->rate_set);
 290
 291         if (wl->band == IEEE80211_BAND_5GHZ)
 292                 join->bss_type |= WL1271_JOIN_CMD_BSS_TYPE_5GHZ;
 293
 294         join->beacon_interval = cpu_to_le16(wl->beacon_int);
 295         join->dtim_interval = WL1271_DEFAULT_DTIM_PERIOD;
 296
 297         join->channel = wl->channel;
 298         join->ssid_len = wl->ssid_len;
 299         memcpy(join->ssid, wl->ssid, wl->ssid_len);
 300
 301         join->ctrl |= wl->session_counter << WL1271_JOIN_CMD_TX_SESSION_OFFSET;
 302
 303         /* reset TX security counters */
 304         wl->tx_security_last_seq = 0;
 305         wl->tx_security_seq = 0;
 306
 307         wl1271_debug(DEBUG_CMD, "cmd join: basic_rate_set=0x%x, rate_set=0x%x",
 308                 join->basic_rate_set, join->supported_rate_set);
 309
 310         ret = wl1271_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join), 0);
 311         if (ret < 0) {
 312                 wl1271_error("failed to initiate cmd join");
 313                 goto out_free;
 314         }
 315
 316         ret = wl1271_cmd_wait_for_event(wl, JOIN_EVENT_COMPLETE_ID);
 317         if (ret < 0)
 318                 wl1271_error("cmd join event completion error");
 319
 320 out_free:
 321         kfree(join);
 322
 323 out:
 324         return ret;
 325 }
 326
 327 /**
 328  * send test command to firmware
 329  *
 330  * @wl: wl struct
 331  * @buf: buffer containing the command, with all headers, must work with dma
 332  * @len: length of the buffer
 333  * @answer: is answer needed
 334  */
 335 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
 336 {
 337         int ret;
 338         size_t res_len = 0;
 339
 340         wl1271_debug(DEBUG_CMD, "cmd test");
 341
 342         if (answer)
 343                 res_len = buf_len;
 344
 345         ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
 346
 347         if (ret < 0) {
 348                 wl1271_warning("TEST command failed");
 349                 return ret;
 350         }
 351
 352         return ret;
 353 }
 354
 355 /**
 356  * read acx from firmware
 357  *
 358  * @wl: wl struct
 359  * @id: acx id
 360  * @buf: buffer for the response, including all headers, must work with dma
 361  * @len: lenght of buf
 362  */
 363 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
 364 {
 365         struct acx_header *acx = buf;
 366         int ret;
 367
 368         wl1271_debug(DEBUG_CMD, "cmd interrogate");
 369
 370         acx->id = cpu_to_le16(id);
 371
 372         /* payload length, does not include any headers */
 373         acx->len = cpu_to_le16(len - sizeof(*acx));
 374
 375         ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len);
 376         if (ret < 0)
 377                 wl1271_error("INTERROGATE command failed");
 378
 379         return ret;
 380 }
 381
 382 /**
 383  * write acx value to firmware
 384  *
 385  * @wl: wl struct
 386  * @id: acx id
 387  * @buf: buffer containing acx, including all headers, must work with dma
 388  * @len: length of buf
 389  */
 390 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
 391 {
 392         struct acx_header *acx = buf;
 393         int ret;
 394
 395         wl1271_debug(DEBUG_CMD, "cmd configure");
 396
 397         acx->id = cpu_to_le16(id);
 398
 399         /* payload length, does not include any headers */
 400         acx->len = cpu_to_le16(len - sizeof(*acx));
 401
 402         ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0);
 403         if (ret < 0) {
 404                 wl1271_warning("CONFIGURE command NOK");
 405                 return ret;
 406         }
 407
 408         return 0;
 409 }
 410
 411 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
 412 {
 413         struct cmd_enabledisable_path *cmd;
 414         int ret;
 415         u16 cmd_rx, cmd_tx;
 416
 417         wl1271_debug(DEBUG_CMD, "cmd data path");
 418
 419         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 420         if (!cmd) {
 421                 ret = -ENOMEM;
 422                 goto out;
 423         }
 424
 425         /* the channel here is only used for calibration, so hardcoded to 1 */
 426         cmd->channel = 1;
 427
 428         if (enable) {
 429                 cmd_rx = CMD_ENABLE_RX;
 430                 cmd_tx = CMD_ENABLE_TX;
 431         } else {
 432                 cmd_rx = CMD_DISABLE_RX;
 433                 cmd_tx = CMD_DISABLE_TX;
 434         }
 435
 436         ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
 437         if (ret < 0) {
 438                 wl1271_error("rx %s cmd for channel %d failed",
 439                              enable ? "start" : "stop", cmd->channel);
 440                 goto out;
 441         }
 442
 443         wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
 444                      enable ? "start" : "stop", cmd->channel);
 445
 446         ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
 447         if (ret < 0) {
 448                 wl1271_error("tx %s cmd for channel %d failed",
 449                              enable ? "start" : "stop", cmd->channel);
 450                 goto out;
 451         }
 452
 453         wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
 454                      enable ? "start" : "stop", cmd->channel);
 455
 456 out:
 457         kfree(cmd);
 458         return ret;
 459 }
 460
 461 int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode)
 462 {
 463         struct wl1271_cmd_ps_params *ps_params = NULL;
 464         int ret = 0;
 465
 466         wl1271_debug(DEBUG_CMD, "cmd set ps mode");
 467
 468         ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
 469         if (!ps_params) {
 470                 ret = -ENOMEM;
 471                 goto out;
 472         }
 473
 474         ps_params->ps_mode = ps_mode;
 475
 476         ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
 477                               sizeof(*ps_params), 0);
 478         if (ret < 0) {
 479                 wl1271_error("cmd set_ps_mode failed");
 480                 goto out;
 481         }
 482
 483 out:
 484         kfree(ps_params);
 485         return ret;
 486 }
 487
 488 int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
 489                             void *buf, size_t buf_len, int index, u32 rates)
 490 {
 491         struct wl1271_cmd_template_set *cmd;
 492         int ret = 0;
 493
 494         wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
 495
 496         WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
 497         buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
 498
 499         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 500         if (!cmd) {
 501                 ret = -ENOMEM;
 502                 goto out;
 503         }
 504
 505         cmd->len = cpu_to_le16(buf_len);
 506         cmd->template_type = template_id;
 507         cmd->enabled_rates = cpu_to_le32(rates);
 508         cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
 509         cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
 510         cmd->index = index;
 511
 512         if (buf)
 513                 memcpy(cmd->template_data, buf, buf_len);
 514
 515         ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
 516         if (ret < 0) {
 517                 wl1271_warning("cmd set_template failed: %d", ret);
 518                 goto out_free;
 519         }
 520
 521 out_free:
 522         kfree(cmd);
 523
 524 out:
 525         return ret;
 526 }
 527
 528 int wl1271_cmd_build_null_data(struct wl1271 *wl)
 529 {
 530         struct sk_buff *skb = NULL;
 531         int size;
 532         void *ptr;
 533         int ret = -ENOMEM;
 534
 535
 536         if (wl->bss_type == BSS_TYPE_IBSS) {
 537                 size = sizeof(struct wl12xx_null_data_template);
 538                 ptr = NULL;
 539         } else {
 540                 skb = ieee80211_nullfunc_get(wl->hw, wl->vif);
 541                 if (!skb)
 542                         goto out;
 543                 size = skb->len;
 544                 ptr = skb->data;
 545         }
 546
 547         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, ptr, size, 0,
 548                                       wl->basic_rate);
 549
 550 out:
 551         dev_kfree_skb(skb);
 552         if (ret)
 553                 wl1271_warning("cmd buld null data failed %d", ret);
 554
 555         return ret;
 556
 557 }
 558
 559 int wl1271_cmd_build_klv_null_data(struct wl1271 *wl)
 560 {
 561         struct sk_buff *skb = NULL;
 562         int ret = -ENOMEM;
 563
 564         skb = ieee80211_nullfunc_get(wl->hw, wl->vif);
 565         if (!skb)
 566                 goto out;
 567
 568         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_KLV,
 569                                       skb->data, skb->len,
 570                                       CMD_TEMPL_KLV_IDX_NULL_DATA,
 571                                       wl->basic_rate);
 572
 573 out:
 574         dev_kfree_skb(skb);
 575         if (ret)
 576                 wl1271_warning("cmd build klv null data failed %d", ret);
 577
 578         return ret;
 579
 580 }
 581
 582 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, u16 aid)
 583 {
 584         struct sk_buff *skb;
 585         int ret = 0;
 586
 587         skb = ieee80211_pspoll_get(wl->hw, wl->vif);
 588         if (!skb)
 589                 goto out;
 590
 591         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, skb->data,
 592                                       skb->len, 0, wl->basic_rate_set);
 593
 594 out:
 595         dev_kfree_skb(skb);
 596         return ret;
 597 }
 598
 599 int wl1271_cmd_build_probe_req(struct wl1271 *wl,
 600                                const u8 *ssid, size_t ssid_len,
 601                                const u8 *ie, size_t ie_len, u8 band)
 602 {
 603         struct sk_buff *skb;
 604         int ret;
 605
 606         skb = ieee80211_probereq_get(wl->hw, wl->vif, ssid, ssid_len,
 607                                      ie, ie_len);
 608         if (!skb) {
 609                 ret = -ENOMEM;
 610                 goto out;
 611         }
 612
 613         wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len);
 614
 615         if (band == IEEE80211_BAND_2GHZ)
 616                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 617                                               skb->data, skb->len, 0,
 618                                               wl->conf.tx.basic_rate);
 619         else
 620                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
 621                                               skb->data, skb->len, 0,
 622                                               wl->conf.tx.basic_rate_5);
 623
 624 out:
 625         dev_kfree_skb(skb);
 626         return ret;
 627 }
 628
 629 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
 630                                               struct sk_buff *skb)
 631 {
 632         int ret;
 633
 634         if (!skb)
 635                 skb = ieee80211_ap_probereq_get(wl->hw, wl->vif);
 636         if (!skb)
 637                 goto out;
 638
 639         wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len);
 640
 641         if (wl->band == IEEE80211_BAND_2GHZ)
 642                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 643                                               skb->data, skb->len, 0,
 644                                               wl->conf.tx.basic_rate);
 645         else
 646                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
 647                                               skb->data, skb->len, 0,
 648                                               wl->conf.tx.basic_rate_5);
 649
 650         if (ret < 0)
 651                 wl1271_error("Unable to set ap probe request template.");
 652
 653 out:
 654         return skb;
 655 }
 656
 657 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, __be32 ip_addr)
 658 {
 659         int ret;
 660         struct wl12xx_arp_rsp_template tmpl;
 661         struct ieee80211_hdr_3addr *hdr;
 662         struct arphdr *arp_hdr;
 663
 664         memset(&tmpl, 0, sizeof(tmpl));
 665
 666         /* mac80211 header */
 667         hdr = &tmpl.hdr;
 668         hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 669                                          IEEE80211_STYPE_DATA |
 670                                          IEEE80211_FCTL_TODS);
 671         memcpy(hdr->addr1, wl->vif->bss_conf.bssid, ETH_ALEN);
 672         memcpy(hdr->addr2, wl->vif->addr, ETH_ALEN);
 673         memset(hdr->addr3, 0xff, ETH_ALEN);
 674
 675         /* llc layer */
 676         memcpy(tmpl.llc_hdr, rfc1042_header, sizeof(rfc1042_header));
 677         tmpl.llc_type = cpu_to_be16(ETH_P_ARP);
 678
 679         /* arp header */
 680         arp_hdr = &tmpl.arp_hdr;
 681         arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
 682         arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
 683         arp_hdr->ar_hln = ETH_ALEN;
 684         arp_hdr->ar_pln = 4;
 685         arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
 686
 687         /* arp payload */
 688         memcpy(tmpl.sender_hw, wl->vif->addr, ETH_ALEN);
 689         tmpl.sender_ip = ip_addr;
 690
 691         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_ARP_RSP,
 692                                       &tmpl, sizeof(tmpl), 0,
 693                                       wl->basic_rate);
 694
 695         return ret;
 696 }
 697
 698 int wl1271_build_qos_null_data(struct wl1271 *wl)
 699 {
 700         struct ieee80211_qos_hdr template;
 701
 702         memset(&template, 0, sizeof(template));
 703
 704         memcpy(template.addr1, wl->bssid, ETH_ALEN);
 705         memcpy(template.addr2, wl->mac_addr, ETH_ALEN);
 706         memcpy(template.addr3, wl->bssid, ETH_ALEN);
 707
 708         template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 709                                              IEEE80211_STYPE_QOS_NULLFUNC |
 710                                              IEEE80211_FCTL_TODS);
 711
 712         /* FIXME: not sure what priority to use here */
 713         template.qos_ctrl = cpu_to_le16(0);
 714
 715         return wl1271_cmd_template_set(wl, CMD_TEMPL_QOS_NULL_DATA, &template,
 716                                        sizeof(template), 0,
 717                                        wl->basic_rate);
 718 }
 719
 720 int wl1271_cmd_set_sta_default_wep_key(struct wl1271 *wl, u8 id)
 721 {
 722         struct wl1271_cmd_set_sta_keys *cmd;
 723         int ret = 0;
 724
 725         wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
 726
 727         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 728         if (!cmd) {
 729                 ret = -ENOMEM;
 730                 goto out;
 731         }
 732
 733         cmd->id = id;
 734         cmd->key_action = cpu_to_le16(KEY_SET_ID);
 735         cmd->key_type = KEY_WEP;
 736
 737         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 738         if (ret < 0) {
 739                 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
 740                 goto out;
 741         }
 742
 743 out:
 744         kfree(cmd);
 745
 746         return ret;
 747 }
 748
 749 int wl1271_cmd_set_ap_default_wep_key(struct wl1271 *wl, u8 id)
 750 {
 751         struct wl1271_cmd_set_ap_keys *cmd;
 752         int ret = 0;
 753
 754         wl1271_debug(DEBUG_CMD, "cmd set_ap_default_wep_key %d", id);
 755
 756         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 757         if (!cmd) {
 758                 ret = -ENOMEM;
 759                 goto out;
 760         }
 761
 762         cmd->hlid = WL1271_AP_BROADCAST_HLID;
 763         cmd->key_id = id;
 764         cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
 765         cmd->key_action = cpu_to_le16(KEY_SET_ID);
 766         cmd->key_type = KEY_WEP;
 767
 768         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 769         if (ret < 0) {
 770                 wl1271_warning("cmd set_ap_default_wep_key failed: %d", ret);
 771                 goto out;
 772         }
 773
 774 out:
 775         kfree(cmd);
 776
 777         return ret;
 778 }
 779
 780 int wl1271_cmd_set_sta_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
 781                        u8 key_size, const u8 *key, const u8 *addr,
 782                        u32 tx_seq_32, u16 tx_seq_16)
 783 {
 784         struct wl1271_cmd_set_sta_keys *cmd;
 785         int ret = 0;
 786
 787         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 788         if (!cmd) {
 789                 ret = -ENOMEM;
 790                 goto out;
 791         }
 792
 793         if (key_type != KEY_WEP)
 794                 memcpy(cmd->addr, addr, ETH_ALEN);
 795
 796         cmd->key_action = cpu_to_le16(action);
 797         cmd->key_size = key_size;
 798         cmd->key_type = key_type;
 799
 800         cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
 801         cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
 802
 803         /* we have only one SSID profile */
 804         cmd->ssid_profile = 0;
 805
 806         cmd->id = id;
 807
 808         if (key_type == KEY_TKIP) {
 809                 /*
 810                  * We get the key in the following form:
 811                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
 812                  * but the target is expecting:
 813                  * TKIP - RX MIC - TX MIC
 814                  */
 815                 memcpy(cmd->key, key, 16);
 816                 memcpy(cmd->key + 16, key + 24, 8);
 817                 memcpy(cmd->key + 24, key + 16, 8);
 818
 819         } else {
 820                 memcpy(cmd->key, key, key_size);
 821         }
 822
 823         wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
 824
 825         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 826         if (ret < 0) {
 827                 wl1271_warning("could not set keys");
 828         goto out;
 829         }
 830
 831 out:
 832         kfree(cmd);
 833
 834         return ret;
 835 }
 836
 837 int wl1271_cmd_set_ap_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
 838                         u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
 839                         u16 tx_seq_16)
 840 {
 841         struct wl1271_cmd_set_ap_keys *cmd;
 842         int ret = 0;
 843         u8 lid_type;
 844
 845         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 846         if (!cmd)
 847                 return -ENOMEM;
 848
 849         if (hlid == WL1271_AP_BROADCAST_HLID) {
 850                 if (key_type == KEY_WEP)
 851                         lid_type = WEP_DEFAULT_LID_TYPE;
 852                 else
 853                         lid_type = BROADCAST_LID_TYPE;
 854         } else {
 855                 lid_type = UNICAST_LID_TYPE;
 856         }
 857
 858         wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
 859                      " hlid: %d", (int)action, (int)id, (int)lid_type,
 860                      (int)key_type, (int)hlid);
 861
 862         cmd->lid_key_type = lid_type;
 863         cmd->hlid = hlid;
 864         cmd->key_action = cpu_to_le16(action);
 865         cmd->key_size = key_size;
 866         cmd->key_type = key_type;
 867         cmd->key_id = id;
 868         cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
 869         cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
 870
 871         if (key_type == KEY_TKIP) {
 872                 /*
 873                  * We get the key in the following form:
 874                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
 875                  * but the target is expecting:
 876                  * TKIP - RX MIC - TX MIC
 877                  */
 878                 memcpy(cmd->key, key, 16);
 879                 memcpy(cmd->key + 16, key + 24, 8);
 880                 memcpy(cmd->key + 24, key + 16, 8);
 881         } else {
 882                 memcpy(cmd->key, key, key_size);
 883         }
 884
 885         wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
 886
 887         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 888         if (ret < 0) {
 889                 wl1271_warning("could not set ap keys");
 890                 goto out;
 891         }
 892
 893 out:
 894         kfree(cmd);
 895         return ret;
 896 }
 897
 898 int wl1271_cmd_disconnect(struct wl1271 *wl)
 899 {
 900         struct wl1271_cmd_disconnect *cmd;
 901         int ret = 0;
 902
 903         wl1271_debug(DEBUG_CMD, "cmd disconnect");
 904
 905         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 906         if (!cmd) {
 907                 ret = -ENOMEM;
 908                 goto out;
 909         }
 910
 911         cmd->rx_config_options = cpu_to_le32(wl->rx_config);
 912         cmd->rx_filter_options = cpu_to_le32(wl->rx_filter);
 913         /* disconnect reason is not used in immediate disconnections */
 914         cmd->type = DISCONNECT_IMMEDIATE;
 915
 916         ret = wl1271_cmd_send(wl, CMD_DISCONNECT, cmd, sizeof(*cmd), 0);
 917         if (ret < 0) {
 918                 wl1271_error("failed to send disconnect command");
 919                 goto out_free;
 920         }
 921
 922         ret = wl1271_cmd_wait_for_event(wl, DISCONNECT_EVENT_COMPLETE_ID);
 923         if (ret < 0)
 924                 wl1271_error("cmd disconnect event completion error");
 925
 926 out_free:
 927         kfree(cmd);
 928
 929 out:
 930         return ret;
 931 }
 932
 933 int wl1271_cmd_set_sta_state(struct wl1271 *wl)
 934 {
 935         struct wl1271_cmd_set_sta_state *cmd;
 936         int ret = 0;
 937
 938         wl1271_debug(DEBUG_CMD, "cmd set sta state");
 939
 940         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 941         if (!cmd) {
 942                 ret = -ENOMEM;
 943                 goto out;
 944         }
 945
 946         cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
 947
 948         ret = wl1271_cmd_send(wl, CMD_SET_STA_STATE, cmd, sizeof(*cmd), 0);
 949         if (ret < 0) {
 950                 wl1271_error("failed to send set STA state command");
 951                 goto out_free;
 952         }
 953
 954 out_free:
 955         kfree(cmd);
 956
 957 out:
 958         return ret;
 959 }
 960
 961 int wl1271_cmd_start_bss(struct wl1271 *wl)
 962 {
 963         struct wl1271_cmd_bss_start *cmd;
 964         struct ieee80211_bss_conf *bss_conf = &wl->vif->bss_conf;
 965         int ret;
 966
 967         wl1271_debug(DEBUG_CMD, "cmd start bss");
 968
 969         /*
 970          * FIXME: We currently do not support hidden SSID. The real SSID
 971          * should be fetched from mac80211 first.
 972          */
 973         if (wl->ssid_len == 0) {
 974                 wl1271_warning("Hidden SSID currently not supported for AP");
 975                 ret = -EINVAL;
 976                 goto out;
 977         }
 978
 979         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 980         if (!cmd) {
 981                 ret = -ENOMEM;
 982                 goto out;
 983         }
 984
 985         memcpy(cmd->bssid, bss_conf->bssid, ETH_ALEN);
 986
 987         cmd->aging_period = cpu_to_le16(WL1271_AP_DEF_INACTIV_SEC);
 988         cmd->bss_index = WL1271_AP_BSS_INDEX;
 989         cmd->global_hlid = WL1271_AP_GLOBAL_HLID;
 990         cmd->broadcast_hlid = WL1271_AP_BROADCAST_HLID;
 991         cmd->basic_rate_set = cpu_to_le32(wl->basic_rate_set);
 992         cmd->beacon_interval = cpu_to_le16(wl->beacon_int);
 993         cmd->dtim_interval = bss_conf->dtim_period;
 994         cmd->beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
 995         cmd->channel = wl->channel;
 996         cmd->ssid_len = wl->ssid_len;
 997         cmd->ssid_type = SSID_TYPE_PUBLIC;
 998         memcpy(cmd->ssid, wl->ssid, wl->ssid_len);
 999
1000         switch (wl->band) {
1001         case IEEE80211_BAND_2GHZ:
1002                 cmd->band = RADIO_BAND_2_4GHZ;
1003                 break;
1004         case IEEE80211_BAND_5GHZ:
1005                 cmd->band = RADIO_BAND_5GHZ;
1006                 break;
1007         default:
1008                 wl1271_warning("bss start - unknown band: %d", (int)wl->band);
1009                 cmd->band = RADIO_BAND_2_4GHZ;
1010                 break;
1011         }
1012
1013         ret = wl1271_cmd_send(wl, CMD_BSS_START, cmd, sizeof(*cmd), 0);
1014         if (ret < 0) {
1015                 wl1271_error("failed to initiate cmd start bss");
1016                 goto out_free;
1017         }
1018
1019 out_free:
1020         kfree(cmd);
1021
1022 out:
1023         return ret;
1024 }
1025
1026 int wl1271_cmd_stop_bss(struct wl1271 *wl)
1027 {
1028         struct wl1271_cmd_bss_start *cmd;
1029         int ret;
1030
1031         wl1271_debug(DEBUG_CMD, "cmd stop bss");
1032
1033         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1034         if (!cmd) {
1035                 ret = -ENOMEM;
1036                 goto out;
1037         }
1038
1039         cmd->bss_index = WL1271_AP_BSS_INDEX;
1040
1041         ret = wl1271_cmd_send(wl, CMD_BSS_STOP, cmd, sizeof(*cmd), 0);
1042         if (ret < 0) {
1043                 wl1271_error("failed to initiate cmd stop bss");
1044                 goto out_free;
1045         }
1046
1047 out_free:
1048         kfree(cmd);
1049
1050 out:
1051         return ret;
1052 }
1053
1054 int wl1271_cmd_add_sta(struct wl1271 *wl, struct ieee80211_sta *sta, u8 hlid)
1055 {
1056         struct wl1271_cmd_add_sta *cmd;
1057         int ret;
1058
1059         wl1271_debug(DEBUG_CMD, "cmd add sta %d", (int)hlid);
1060
1061         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1062         if (!cmd) {
1063                 ret = -ENOMEM;
1064                 goto out;
1065         }
1066
1067         /* currently we don't support UAPSD */
1068         cmd->sp_len = 0;
1069
1070         memcpy(cmd->addr, sta->addr, ETH_ALEN);
1071         cmd->bss_index = WL1271_AP_BSS_INDEX;
1072         cmd->aid = sta->aid;
1073         cmd->hlid = hlid;
1074
1075         /*
1076          * FIXME: Does STA support QOS? We need to propagate this info from
1077          * hostapd. Currently not that important since this is only used for
1078          * sending the correct flavor of null-data packet in response to a
1079          * trigger.
1080          */
1081         cmd->wmm = 0;
1082
1083         cmd->supported_rates = cpu_to_le32(wl1271_tx_enabled_rates_get(wl,
1084                                                 sta->supp_rates[wl->band]));
1085
1086         wl1271_debug(DEBUG_CMD, "new sta rates: 0x%x", cmd->supported_rates);
1087
1088         ret = wl1271_cmd_send(wl, CMD_ADD_STA, cmd, sizeof(*cmd), 0);
1089         if (ret < 0) {
1090                 wl1271_error("failed to initiate cmd add sta");
1091                 goto out_free;
1092         }
1093
1094 out_free:
1095         kfree(cmd);
1096
1097 out:
1098         return ret;
1099 }
1100
1101 int wl1271_cmd_remove_sta(struct wl1271 *wl, u8 hlid)
1102 {
1103         struct wl1271_cmd_remove_sta *cmd;
1104         int ret;
1105
1106         wl1271_debug(DEBUG_CMD, "cmd remove sta %d", (int)hlid);
1107
1108         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1109         if (!cmd) {
1110                 ret = -ENOMEM;
1111                 goto out;
1112         }
1113
1114         cmd->hlid = hlid;
1115         /* We never send a deauth, mac80211 is in charge of this */
1116         cmd->reason_opcode = 0;
1117         cmd->send_deauth_flag = 0;
1118
1119         ret = wl1271_cmd_send(wl, CMD_REMOVE_STA, cmd, sizeof(*cmd), 0);
1120         if (ret < 0) {
1121                 wl1271_error("failed to initiate cmd remove sta");
1122                 goto out_free;
1123         }
1124
1125         /*
1126          * We are ok with a timeout here. The event is sometimes not sent
1127          * due to a firmware bug.
1128          */
1129         wl1271_cmd_wait_for_event_or_timeout(wl, STA_REMOVE_COMPLETE_EVENT_ID);
1130
1131 out_free:
1132         kfree(cmd);
1133
1134 out:
1135         return ret;
1136 }