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         WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags));
  67
  68         wl1271_write(wl, wl->cmd_box_addr, buf, len, false);
  69
  70         wl1271_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
  71
  72         timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
  73
  74         intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  75         while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
  76                 if (time_after(jiffies, timeout)) {
  77                         wl1271_error("command complete timeout");
  78                         ret = -ETIMEDOUT;
  79                         goto out;
  80                 }
  81
  82                 poll_count++;
  83                 if (poll_count < WL1271_CMD_FAST_POLL_COUNT)
  84                         udelay(10);
  85                 else
  86                         msleep(1);
  87
  88                 intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
  89         }
  90
  91         /* read back the status code of the command */
  92         if (res_len == 0)
  93                 res_len = sizeof(struct wl1271_cmd_header);
  94         wl1271_read(wl, wl->cmd_box_addr, cmd, res_len, false);
  95
  96         status = le16_to_cpu(cmd->status);
  97         if (status != CMD_STATUS_SUCCESS) {
  98                 wl1271_error("command execute failure %d", status);
  99                 ieee80211_queue_work(wl->hw, &wl->recovery_work);
 100                 ret = -EIO;
 101         }
 102
 103         wl1271_write32(wl, ACX_REG_INTERRUPT_ACK,
 104                        WL1271_ACX_INTR_CMD_COMPLETE);
 105
 106 out:
 107         return ret;
 108 }
 109
 110 int wl1271_cmd_general_parms(struct wl1271 *wl)
 111 {
 112         struct wl1271_general_parms_cmd *gen_parms;
 113         struct wl1271_ini_general_params *gp = &wl->nvs->general_params;
 114         bool answer = false;
 115         int ret;
 116
 117         if (!wl->nvs)
 118                 return -ENODEV;
 119
 120         gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL);
 121         if (!gen_parms)
 122                 return -ENOMEM;
 123
 124         gen_parms->test.id = TEST_CMD_INI_FILE_GENERAL_PARAM;
 125
 126         memcpy(&gen_parms->general_params, gp, sizeof(*gp));
 127
 128         if (gp->tx_bip_fem_auto_detect)
 129                 answer = true;
 130
 131         ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), answer);
 132         if (ret < 0) {
 133                 wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
 134                 goto out;
 135         }
 136
 137         gp->tx_bip_fem_manufacturer =
 138                 gen_parms->general_params.tx_bip_fem_manufacturer;
 139
 140         wl1271_debug(DEBUG_CMD, "FEM autodetect: %s, manufacturer: %d\n",
 141                      answer ? "auto" : "manual", gp->tx_bip_fem_manufacturer);
 142
 143 out:
 144         kfree(gen_parms);
 145         return ret;
 146 }
 147
 148 int wl1271_cmd_radio_parms(struct wl1271 *wl)
 149 {
 150         struct wl1271_radio_parms_cmd *radio_parms;
 151         struct wl1271_ini_general_params *gp = &wl->nvs->general_params;
 152         int ret;
 153
 154         if (!wl->nvs)
 155                 return -ENODEV;
 156
 157         radio_parms = kzalloc(sizeof(*radio_parms), GFP_KERNEL);
 158         if (!radio_parms)
 159                 return -ENOMEM;
 160
 161         radio_parms->test.id = TEST_CMD_INI_FILE_RADIO_PARAM;
 162
 163         /* 2.4GHz parameters */
 164         memcpy(&radio_parms->static_params_2, &wl->nvs->stat_radio_params_2,
 165                sizeof(struct wl1271_ini_band_params_2));
 166         memcpy(&radio_parms->dyn_params_2,
 167                &wl->nvs->dyn_radio_params_2[gp->tx_bip_fem_manufacturer].params,
 168                sizeof(struct wl1271_ini_fem_params_2));
 169
 170         /* 5GHz parameters */
 171         memcpy(&radio_parms->static_params_5,
 172                &wl->nvs->stat_radio_params_5,
 173                sizeof(struct wl1271_ini_band_params_5));
 174         memcpy(&radio_parms->dyn_params_5,
 175                &wl->nvs->dyn_radio_params_5[gp->tx_bip_fem_manufacturer].params,
 176                sizeof(struct wl1271_ini_fem_params_5));
 177
 178         wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_RADIO_PARAM: ",
 179                     radio_parms, sizeof(*radio_parms));
 180
 181         ret = wl1271_cmd_test(wl, radio_parms, sizeof(*radio_parms), 0);
 182         if (ret < 0)
 183                 wl1271_warning("CMD_INI_FILE_RADIO_PARAM failed");
 184
 185         kfree(radio_parms);
 186         return ret;
 187 }
 188
 189 int wl1271_cmd_ext_radio_parms(struct wl1271 *wl)
 190 {
 191         struct wl1271_ext_radio_parms_cmd *ext_radio_parms;
 192         struct conf_rf_settings *rf = &wl->conf.rf;
 193         int ret;
 194
 195         if (!wl->nvs)
 196                 return -ENODEV;
 197
 198         ext_radio_parms = kzalloc(sizeof(*ext_radio_parms), GFP_KERNEL);
 199         if (!ext_radio_parms)
 200                 return -ENOMEM;
 201
 202         ext_radio_parms->test.id = TEST_CMD_INI_FILE_RF_EXTENDED_PARAM;
 203
 204         memcpy(ext_radio_parms->tx_per_channel_power_compensation_2,
 205                rf->tx_per_channel_power_compensation_2,
 206                CONF_TX_PWR_COMPENSATION_LEN_2);
 207         memcpy(ext_radio_parms->tx_per_channel_power_compensation_5,
 208                rf->tx_per_channel_power_compensation_5,
 209                CONF_TX_PWR_COMPENSATION_LEN_5);
 210
 211         wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_EXT_RADIO_PARAM: ",
 212                     ext_radio_parms, sizeof(*ext_radio_parms));
 213
 214         ret = wl1271_cmd_test(wl, ext_radio_parms, sizeof(*ext_radio_parms), 0);
 215         if (ret < 0)
 216                 wl1271_warning("TEST_CMD_INI_FILE_RF_EXTENDED_PARAM failed");
 217
 218         kfree(ext_radio_parms);
 219         return ret;
 220 }
 221
 222 /*
 223  * Poll the mailbox event field until any of the bits in the mask is set or a
 224  * timeout occurs (WL1271_EVENT_TIMEOUT in msecs)
 225  */
 226 static int wl1271_cmd_wait_for_event_or_timeout(struct wl1271 *wl, u32 mask)
 227 {
 228         u32 events_vector, event;
 229         unsigned long timeout;
 230
 231         timeout = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
 232
 233         do {
 234                 if (time_after(jiffies, timeout)) {
 235                         wl1271_debug(DEBUG_CMD, "timeout waiting for event %d",
 236                                      (int)mask);
 237                         return -ETIMEDOUT;
 238                 }
 239
 240                 msleep(1);
 241
 242                 /* read from both event fields */
 243                 wl1271_read(wl, wl->mbox_ptr[0], &events_vector,
 244                             sizeof(events_vector), false);
 245                 event = events_vector & mask;
 246                 wl1271_read(wl, wl->mbox_ptr[1], &events_vector,
 247                             sizeof(events_vector), false);
 248                 event |= events_vector & mask;
 249         } while (!event);
 250
 251         return 0;
 252 }
 253
 254 static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask)
 255 {
 256         int ret;
 257
 258         ret = wl1271_cmd_wait_for_event_or_timeout(wl, mask);
 259         if (ret != 0) {
 260                 ieee80211_queue_work(wl->hw, &wl->recovery_work);
 261                 return ret;
 262         }
 263
 264         return 0;
 265 }
 266
 267 int wl1271_cmd_join(struct wl1271 *wl, u8 bss_type)
 268 {
 269         struct wl1271_cmd_join *join;
 270         int ret, i;
 271         u8 *bssid;
 272
 273         join = kzalloc(sizeof(*join), GFP_KERNEL);
 274         if (!join) {
 275                 ret = -ENOMEM;
 276                 goto out;
 277         }
 278
 279         wl1271_debug(DEBUG_CMD, "cmd join");
 280
 281         /* Reverse order BSSID */
 282         bssid = (u8 *) &join->bssid_lsb;
 283         for (i = 0; i < ETH_ALEN; i++)
 284                 bssid[i] = wl->bssid[ETH_ALEN - i - 1];
 285
 286         join->rx_config_options = cpu_to_le32(wl->rx_config);
 287         join->rx_filter_options = cpu_to_le32(wl->rx_filter);
 288         join->bss_type = bss_type;
 289         join->basic_rate_set = cpu_to_le32(wl->basic_rate_set);
 290         join->supported_rate_set = cpu_to_le32(wl->rate_set);
 291
 292         if (wl->band == IEEE80211_BAND_5GHZ)
 293                 join->bss_type |= WL1271_JOIN_CMD_BSS_TYPE_5GHZ;
 294
 295         join->beacon_interval = cpu_to_le16(wl->beacon_int);
 296         join->dtim_interval = WL1271_DEFAULT_DTIM_PERIOD;
 297
 298         join->channel = wl->channel;
 299         join->ssid_len = wl->ssid_len;
 300         memcpy(join->ssid, wl->ssid, wl->ssid_len);
 301
 302         join->ctrl |= wl->session_counter << WL1271_JOIN_CMD_TX_SESSION_OFFSET;
 303
 304         /* reset TX security counters */
 305         wl->tx_security_last_seq = 0;
 306         wl->tx_security_seq = 0;
 307
 308         wl1271_debug(DEBUG_CMD, "cmd join: basic_rate_set=0x%x, rate_set=0x%x",
 309                 join->basic_rate_set, join->supported_rate_set);
 310
 311         ret = wl1271_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join), 0);
 312         if (ret < 0) {
 313                 wl1271_error("failed to initiate cmd join");
 314                 goto out_free;
 315         }
 316
 317         ret = wl1271_cmd_wait_for_event(wl, JOIN_EVENT_COMPLETE_ID);
 318         if (ret < 0)
 319                 wl1271_error("cmd join event completion error");
 320
 321 out_free:
 322         kfree(join);
 323
 324 out:
 325         return ret;
 326 }
 327
 328 /**
 329  * send test command to firmware
 330  *
 331  * @wl: wl struct
 332  * @buf: buffer containing the command, with all headers, must work with dma
 333  * @len: length of the buffer
 334  * @answer: is answer needed
 335  */
 336 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
 337 {
 338         int ret;
 339         size_t res_len = 0;
 340
 341         wl1271_debug(DEBUG_CMD, "cmd test");
 342
 343         if (answer)
 344                 res_len = buf_len;
 345
 346         ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
 347
 348         if (ret < 0) {
 349                 wl1271_warning("TEST command failed");
 350                 return ret;
 351         }
 352
 353         return ret;
 354 }
 355
 356 /**
 357  * read acx from firmware
 358  *
 359  * @wl: wl struct
 360  * @id: acx id
 361  * @buf: buffer for the response, including all headers, must work with dma
 362  * @len: lenght of buf
 363  */
 364 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
 365 {
 366         struct acx_header *acx = buf;
 367         int ret;
 368
 369         wl1271_debug(DEBUG_CMD, "cmd interrogate");
 370
 371         acx->id = cpu_to_le16(id);
 372
 373         /* payload length, does not include any headers */
 374         acx->len = cpu_to_le16(len - sizeof(*acx));
 375
 376         ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len);
 377         if (ret < 0)
 378                 wl1271_error("INTERROGATE command failed");
 379
 380         return ret;
 381 }
 382
 383 /**
 384  * write acx value to firmware
 385  *
 386  * @wl: wl struct
 387  * @id: acx id
 388  * @buf: buffer containing acx, including all headers, must work with dma
 389  * @len: length of buf
 390  */
 391 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
 392 {
 393         struct acx_header *acx = buf;
 394         int ret;
 395
 396         wl1271_debug(DEBUG_CMD, "cmd configure");
 397
 398         acx->id = cpu_to_le16(id);
 399
 400         /* payload length, does not include any headers */
 401         acx->len = cpu_to_le16(len - sizeof(*acx));
 402
 403         ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0);
 404         if (ret < 0) {
 405                 wl1271_warning("CONFIGURE command NOK");
 406                 return ret;
 407         }
 408
 409         return 0;
 410 }
 411
 412 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
 413 {
 414         struct cmd_enabledisable_path *cmd;
 415         int ret;
 416         u16 cmd_rx, cmd_tx;
 417
 418         wl1271_debug(DEBUG_CMD, "cmd data path");
 419
 420         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 421         if (!cmd) {
 422                 ret = -ENOMEM;
 423                 goto out;
 424         }
 425
 426         /* the channel here is only used for calibration, so hardcoded to 1 */
 427         cmd->channel = 1;
 428
 429         if (enable) {
 430                 cmd_rx = CMD_ENABLE_RX;
 431                 cmd_tx = CMD_ENABLE_TX;
 432         } else {
 433                 cmd_rx = CMD_DISABLE_RX;
 434                 cmd_tx = CMD_DISABLE_TX;
 435         }
 436
 437         ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
 438         if (ret < 0) {
 439                 wl1271_error("rx %s cmd for channel %d failed",
 440                              enable ? "start" : "stop", cmd->channel);
 441                 goto out;
 442         }
 443
 444         wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
 445                      enable ? "start" : "stop", cmd->channel);
 446
 447         ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
 448         if (ret < 0) {
 449                 wl1271_error("tx %s cmd for channel %d failed",
 450                              enable ? "start" : "stop", cmd->channel);
 451                 goto out;
 452         }
 453
 454         wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
 455                      enable ? "start" : "stop", cmd->channel);
 456
 457 out:
 458         kfree(cmd);
 459         return ret;
 460 }
 461
 462 int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode)
 463 {
 464         struct wl1271_cmd_ps_params *ps_params = NULL;
 465         int ret = 0;
 466
 467         wl1271_debug(DEBUG_CMD, "cmd set ps mode");
 468
 469         ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
 470         if (!ps_params) {
 471                 ret = -ENOMEM;
 472                 goto out;
 473         }
 474
 475         ps_params->ps_mode = ps_mode;
 476
 477         ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
 478                               sizeof(*ps_params), 0);
 479         if (ret < 0) {
 480                 wl1271_error("cmd set_ps_mode failed");
 481                 goto out;
 482         }
 483
 484 out:
 485         kfree(ps_params);
 486         return ret;
 487 }
 488
 489 int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
 490                             void *buf, size_t buf_len, int index, u32 rates)
 491 {
 492         struct wl1271_cmd_template_set *cmd;
 493         int ret = 0;
 494
 495         wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
 496
 497         WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
 498         buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
 499
 500         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 501         if (!cmd) {
 502                 ret = -ENOMEM;
 503                 goto out;
 504         }
 505
 506         cmd->len = cpu_to_le16(buf_len);
 507         cmd->template_type = template_id;
 508         cmd->enabled_rates = cpu_to_le32(rates);
 509         cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
 510         cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
 511         cmd->index = index;
 512
 513         if (buf)
 514                 memcpy(cmd->template_data, buf, buf_len);
 515
 516         ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
 517         if (ret < 0) {
 518                 wl1271_warning("cmd set_template failed: %d", ret);
 519                 goto out_free;
 520         }
 521
 522 out_free:
 523         kfree(cmd);
 524
 525 out:
 526         return ret;
 527 }
 528
 529 int wl1271_cmd_build_null_data(struct wl1271 *wl)
 530 {
 531         struct sk_buff *skb = NULL;
 532         int size;
 533         void *ptr;
 534         int ret = -ENOMEM;
 535
 536
 537         if (wl->bss_type == BSS_TYPE_IBSS) {
 538                 size = sizeof(struct wl12xx_null_data_template);
 539                 ptr = NULL;
 540         } else {
 541                 skb = ieee80211_nullfunc_get(wl->hw, wl->vif);
 542                 if (!skb)
 543                         goto out;
 544                 size = skb->len;
 545                 ptr = skb->data;
 546         }
 547
 548         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, ptr, size, 0,
 549                                       wl->basic_rate);
 550
 551 out:
 552         dev_kfree_skb(skb);
 553         if (ret)
 554                 wl1271_warning("cmd buld null data failed %d", ret);
 555
 556         return ret;
 557
 558 }
 559
 560 int wl1271_cmd_build_klv_null_data(struct wl1271 *wl)
 561 {
 562         struct sk_buff *skb = NULL;
 563         int ret = -ENOMEM;
 564
 565         skb = ieee80211_nullfunc_get(wl->hw, wl->vif);
 566         if (!skb)
 567                 goto out;
 568
 569         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_KLV,
 570                                       skb->data, skb->len,
 571                                       CMD_TEMPL_KLV_IDX_NULL_DATA,
 572                                       wl->basic_rate);
 573
 574 out:
 575         dev_kfree_skb(skb);
 576         if (ret)
 577                 wl1271_warning("cmd build klv null data failed %d", ret);
 578
 579         return ret;
 580
 581 }
 582
 583 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, u16 aid)
 584 {
 585         struct sk_buff *skb;
 586         int ret = 0;
 587
 588         skb = ieee80211_pspoll_get(wl->hw, wl->vif);
 589         if (!skb)
 590                 goto out;
 591
 592         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, skb->data,
 593                                       skb->len, 0, wl->basic_rate_set);
 594
 595 out:
 596         dev_kfree_skb(skb);
 597         return ret;
 598 }
 599
 600 int wl1271_cmd_build_probe_req(struct wl1271 *wl,
 601                                const u8 *ssid, size_t ssid_len,
 602                                const u8 *ie, size_t ie_len, u8 band)
 603 {
 604         struct sk_buff *skb;
 605         int ret;
 606
 607         skb = ieee80211_probereq_get(wl->hw, wl->vif, ssid, ssid_len,
 608                                      ie, ie_len);
 609         if (!skb) {
 610                 ret = -ENOMEM;
 611                 goto out;
 612         }
 613
 614         wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len);
 615
 616         if (band == IEEE80211_BAND_2GHZ)
 617                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 618                                               skb->data, skb->len, 0,
 619                                               wl->conf.tx.basic_rate);
 620         else
 621                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
 622                                               skb->data, skb->len, 0,
 623                                               wl->conf.tx.basic_rate_5);
 624
 625 out:
 626         dev_kfree_skb(skb);
 627         return ret;
 628 }
 629
 630 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
 631                                               struct sk_buff *skb)
 632 {
 633         int ret;
 634
 635         if (!skb)
 636                 skb = ieee80211_ap_probereq_get(wl->hw, wl->vif);
 637         if (!skb)
 638                 goto out;
 639
 640         wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len);
 641
 642         if (wl->band == IEEE80211_BAND_2GHZ)
 643                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
 644                                               skb->data, skb->len, 0,
 645                                               wl->conf.tx.basic_rate);
 646         else
 647                 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
 648                                               skb->data, skb->len, 0,
 649                                               wl->conf.tx.basic_rate_5);
 650
 651         if (ret < 0)
 652                 wl1271_error("Unable to set ap probe request template.");
 653
 654 out:
 655         return skb;
 656 }
 657
 658 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, __be32 ip_addr)
 659 {
 660         int ret;
 661         struct wl12xx_arp_rsp_template tmpl;
 662         struct ieee80211_hdr_3addr *hdr;
 663         struct arphdr *arp_hdr;
 664
 665         memset(&tmpl, 0, sizeof(tmpl));
 666
 667         /* mac80211 header */
 668         hdr = &tmpl.hdr;
 669         hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 670                                          IEEE80211_STYPE_DATA |
 671                                          IEEE80211_FCTL_TODS);
 672         memcpy(hdr->addr1, wl->vif->bss_conf.bssid, ETH_ALEN);
 673         memcpy(hdr->addr2, wl->vif->addr, ETH_ALEN);
 674         memset(hdr->addr3, 0xff, ETH_ALEN);
 675
 676         /* llc layer */
 677         memcpy(tmpl.llc_hdr, rfc1042_header, sizeof(rfc1042_header));
 678         tmpl.llc_type = cpu_to_be16(ETH_P_ARP);
 679
 680         /* arp header */
 681         arp_hdr = &tmpl.arp_hdr;
 682         arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
 683         arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
 684         arp_hdr->ar_hln = ETH_ALEN;
 685         arp_hdr->ar_pln = 4;
 686         arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
 687
 688         /* arp payload */
 689         memcpy(tmpl.sender_hw, wl->vif->addr, ETH_ALEN);
 690         tmpl.sender_ip = ip_addr;
 691
 692         ret = wl1271_cmd_template_set(wl, CMD_TEMPL_ARP_RSP,
 693                                       &tmpl, sizeof(tmpl), 0,
 694                                       wl->basic_rate);
 695
 696         return ret;
 697 }
 698
 699 int wl1271_build_qos_null_data(struct wl1271 *wl)
 700 {
 701         struct ieee80211_qos_hdr template;
 702
 703         memset(&template, 0, sizeof(template));
 704
 705         memcpy(template.addr1, wl->bssid, ETH_ALEN);
 706         memcpy(template.addr2, wl->mac_addr, ETH_ALEN);
 707         memcpy(template.addr3, wl->bssid, ETH_ALEN);
 708
 709         template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 710                                              IEEE80211_STYPE_QOS_NULLFUNC |
 711                                              IEEE80211_FCTL_TODS);
 712
 713         /* FIXME: not sure what priority to use here */
 714         template.qos_ctrl = cpu_to_le16(0);
 715
 716         return wl1271_cmd_template_set(wl, CMD_TEMPL_QOS_NULL_DATA, &template,
 717                                        sizeof(template), 0,
 718                                        wl->basic_rate);
 719 }
 720
 721 int wl1271_cmd_set_sta_default_wep_key(struct wl1271 *wl, u8 id)
 722 {
 723         struct wl1271_cmd_set_sta_keys *cmd;
 724         int ret = 0;
 725
 726         wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
 727
 728         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 729         if (!cmd) {
 730                 ret = -ENOMEM;
 731                 goto out;
 732         }
 733
 734         cmd->id = id;
 735         cmd->key_action = cpu_to_le16(KEY_SET_ID);
 736         cmd->key_type = KEY_WEP;
 737
 738         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 739         if (ret < 0) {
 740                 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
 741                 goto out;
 742         }
 743
 744 out:
 745         kfree(cmd);
 746
 747         return ret;
 748 }
 749
 750 int wl1271_cmd_set_ap_default_wep_key(struct wl1271 *wl, u8 id)
 751 {
 752         struct wl1271_cmd_set_ap_keys *cmd;
 753         int ret = 0;
 754
 755         wl1271_debug(DEBUG_CMD, "cmd set_ap_default_wep_key %d", id);
 756
 757         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 758         if (!cmd) {
 759                 ret = -ENOMEM;
 760                 goto out;
 761         }
 762
 763         cmd->hlid = WL1271_AP_BROADCAST_HLID;
 764         cmd->key_id = id;
 765         cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
 766         cmd->key_action = cpu_to_le16(KEY_SET_ID);
 767         cmd->key_type = KEY_WEP;
 768
 769         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 770         if (ret < 0) {
 771                 wl1271_warning("cmd set_ap_default_wep_key failed: %d", ret);
 772                 goto out;
 773         }
 774
 775 out:
 776         kfree(cmd);
 777
 778         return ret;
 779 }
 780
 781 int wl1271_cmd_set_sta_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
 782                        u8 key_size, const u8 *key, const u8 *addr,
 783                        u32 tx_seq_32, u16 tx_seq_16)
 784 {
 785         struct wl1271_cmd_set_sta_keys *cmd;
 786         int ret = 0;
 787
 788         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 789         if (!cmd) {
 790                 ret = -ENOMEM;
 791                 goto out;
 792         }
 793
 794         if (key_type != KEY_WEP)
 795                 memcpy(cmd->addr, addr, ETH_ALEN);
 796
 797         cmd->key_action = cpu_to_le16(action);
 798         cmd->key_size = key_size;
 799         cmd->key_type = key_type;
 800
 801         cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
 802         cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
 803
 804         /* we have only one SSID profile */
 805         cmd->ssid_profile = 0;
 806
 807         cmd->id = id;
 808
 809         if (key_type == KEY_TKIP) {
 810                 /*
 811                  * We get the key in the following form:
 812                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
 813                  * but the target is expecting:
 814                  * TKIP - RX MIC - TX MIC
 815                  */
 816                 memcpy(cmd->key, key, 16);
 817                 memcpy(cmd->key + 16, key + 24, 8);
 818                 memcpy(cmd->key + 24, key + 16, 8);
 819
 820         } else {
 821                 memcpy(cmd->key, key, key_size);
 822         }
 823
 824         wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
 825
 826         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 827         if (ret < 0) {
 828                 wl1271_warning("could not set keys");
 829         goto out;
 830         }
 831
 832 out:
 833         kfree(cmd);
 834
 835         return ret;
 836 }
 837
 838 int wl1271_cmd_set_ap_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
 839                         u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
 840                         u16 tx_seq_16)
 841 {
 842         struct wl1271_cmd_set_ap_keys *cmd;
 843         int ret = 0;
 844         u8 lid_type;
 845
 846         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 847         if (!cmd)
 848                 return -ENOMEM;
 849
 850         if (hlid == WL1271_AP_BROADCAST_HLID) {
 851                 if (key_type == KEY_WEP)
 852                         lid_type = WEP_DEFAULT_LID_TYPE;
 853                 else
 854                         lid_type = BROADCAST_LID_TYPE;
 855         } else {
 856                 lid_type = UNICAST_LID_TYPE;
 857         }
 858
 859         wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
 860                      " hlid: %d", (int)action, (int)id, (int)lid_type,
 861                      (int)key_type, (int)hlid);
 862
 863         cmd->lid_key_type = lid_type;
 864         cmd->hlid = hlid;
 865         cmd->key_action = cpu_to_le16(action);
 866         cmd->key_size = key_size;
 867         cmd->key_type = key_type;
 868         cmd->key_id = id;
 869         cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
 870         cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
 871
 872         if (key_type == KEY_TKIP) {
 873                 /*
 874                  * We get the key in the following form:
 875                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
 876                  * but the target is expecting:
 877                  * TKIP - RX MIC - TX MIC
 878                  */
 879                 memcpy(cmd->key, key, 16);
 880                 memcpy(cmd->key + 16, key + 24, 8);
 881                 memcpy(cmd->key + 24, key + 16, 8);
 882         } else {
 883                 memcpy(cmd->key, key, key_size);
 884         }
 885
 886         wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
 887
 888         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
 889         if (ret < 0) {
 890                 wl1271_warning("could not set ap keys");
 891                 goto out;
 892         }
 893
 894 out:
 895         kfree(cmd);
 896         return ret;
 897 }
 898
 899 int wl1271_cmd_disconnect(struct wl1271 *wl)
 900 {
 901         struct wl1271_cmd_disconnect *cmd;
 902         int ret = 0;
 903
 904         wl1271_debug(DEBUG_CMD, "cmd disconnect");
 905
 906         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 907         if (!cmd) {
 908                 ret = -ENOMEM;
 909                 goto out;
 910         }
 911
 912         cmd->rx_config_options = cpu_to_le32(wl->rx_config);
 913         cmd->rx_filter_options = cpu_to_le32(wl->rx_filter);
 914         /* disconnect reason is not used in immediate disconnections */
 915         cmd->type = DISCONNECT_IMMEDIATE;
 916
 917         ret = wl1271_cmd_send(wl, CMD_DISCONNECT, cmd, sizeof(*cmd), 0);
 918         if (ret < 0) {
 919                 wl1271_error("failed to send disconnect command");
 920                 goto out_free;
 921         }
 922
 923         ret = wl1271_cmd_wait_for_event(wl, DISCONNECT_EVENT_COMPLETE_ID);
 924         if (ret < 0)
 925                 wl1271_error("cmd disconnect event completion error");
 926
 927 out_free:
 928         kfree(cmd);
 929
 930 out:
 931         return ret;
 932 }
 933
 934 int wl1271_cmd_set_sta_state(struct wl1271 *wl)
 935 {
 936         struct wl1271_cmd_set_sta_state *cmd;
 937         int ret = 0;
 938
 939         wl1271_debug(DEBUG_CMD, "cmd set sta state");
 940
 941         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 942         if (!cmd) {
 943                 ret = -ENOMEM;
 944                 goto out;
 945         }
 946
 947         cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
 948
 949         ret = wl1271_cmd_send(wl, CMD_SET_STA_STATE, cmd, sizeof(*cmd), 0);
 950         if (ret < 0) {
 951                 wl1271_error("failed to send set STA state command");
 952                 goto out_free;
 953         }
 954
 955 out_free:
 956         kfree(cmd);
 957
 958 out:
 959         return ret;
 960 }
 961
 962 int wl1271_cmd_start_bss(struct wl1271 *wl)
 963 {
 964         struct wl1271_cmd_bss_start *cmd;
 965         struct ieee80211_bss_conf *bss_conf = &wl->vif->bss_conf;
 966         int ret;
 967
 968         wl1271_debug(DEBUG_CMD, "cmd start bss");
 969
 970         /*
 971          * FIXME: We currently do not support hidden SSID. The real SSID
 972          * should be fetched from mac80211 first.
 973          */
 974         if (wl->ssid_len == 0) {
 975                 wl1271_warning("Hidden SSID currently not supported for AP");
 976                 ret = -EINVAL;
 977                 goto out;
 978         }
 979
 980         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 981         if (!cmd) {
 982                 ret = -ENOMEM;
 983                 goto out;
 984         }
 985
 986         memcpy(cmd->bssid, bss_conf->bssid, ETH_ALEN);
 987
 988         cmd->aging_period = cpu_to_le16(WL1271_AP_DEF_INACTIV_SEC);
 989         cmd->bss_index = WL1271_AP_BSS_INDEX;
 990         cmd->global_hlid = WL1271_AP_GLOBAL_HLID;
 991         cmd->broadcast_hlid = WL1271_AP_BROADCAST_HLID;
 992         cmd->basic_rate_set = cpu_to_le32(wl->basic_rate_set);
 993         cmd->beacon_interval = cpu_to_le16(wl->beacon_int);
 994         cmd->dtim_interval = bss_conf->dtim_period;
 995         cmd->beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
 996         cmd->channel = wl->channel;
 997         cmd->ssid_len = wl->ssid_len;
 998         cmd->ssid_type = SSID_TYPE_PUBLIC;
 999         memcpy(cmd->ssid, wl->ssid, wl->ssid_len);
1000
1001         switch (wl->band) {
1002         case IEEE80211_BAND_2GHZ:
1003                 cmd->band = RADIO_BAND_2_4GHZ;
1004                 break;
1005         case IEEE80211_BAND_5GHZ:
1006                 cmd->band = RADIO_BAND_5GHZ;
1007                 break;
1008         default:
1009                 wl1271_warning("bss start - unknown band: %d", (int)wl->band);
1010                 cmd->band = RADIO_BAND_2_4GHZ;
1011                 break;
1012         }
1013
1014         ret = wl1271_cmd_send(wl, CMD_BSS_START, cmd, sizeof(*cmd), 0);
1015         if (ret < 0) {
1016                 wl1271_error("failed to initiate cmd start bss");
1017                 goto out_free;
1018         }
1019
1020 out_free:
1021         kfree(cmd);
1022
1023 out:
1024         return ret;
1025 }
1026
1027 int wl1271_cmd_stop_bss(struct wl1271 *wl)
1028 {
1029         struct wl1271_cmd_bss_start *cmd;
1030         int ret;
1031
1032         wl1271_debug(DEBUG_CMD, "cmd stop bss");
1033
1034         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1035         if (!cmd) {
1036                 ret = -ENOMEM;
1037                 goto out;
1038         }
1039
1040         cmd->bss_index = WL1271_AP_BSS_INDEX;
1041
1042         ret = wl1271_cmd_send(wl, CMD_BSS_STOP, cmd, sizeof(*cmd), 0);
1043         if (ret < 0) {
1044                 wl1271_error("failed to initiate cmd stop bss");
1045                 goto out_free;
1046         }
1047
1048 out_free:
1049         kfree(cmd);
1050
1051 out:
1052         return ret;
1053 }
1054
1055 int wl1271_cmd_add_sta(struct wl1271 *wl, struct ieee80211_sta *sta, u8 hlid)
1056 {
1057         struct wl1271_cmd_add_sta *cmd;
1058         int ret;
1059
1060         wl1271_debug(DEBUG_CMD, "cmd add sta %d", (int)hlid);
1061
1062         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1063         if (!cmd) {
1064                 ret = -ENOMEM;
1065                 goto out;
1066         }
1067
1068         /* currently we don't support UAPSD */
1069         cmd->sp_len = 0;
1070
1071         memcpy(cmd->addr, sta->addr, ETH_ALEN);
1072         cmd->bss_index = WL1271_AP_BSS_INDEX;
1073         cmd->aid = sta->aid;
1074         cmd->hlid = hlid;
1075
1076         /*
1077          * FIXME: Does STA support QOS? We need to propagate this info from
1078          * hostapd. Currently not that important since this is only used for
1079          * sending the correct flavor of null-data packet in response to a
1080          * trigger.
1081          */
1082         cmd->wmm = 0;
1083
1084         cmd->supported_rates = cpu_to_le32(wl1271_tx_enabled_rates_get(wl,
1085                                                 sta->supp_rates[wl->band]));
1086
1087         wl1271_debug(DEBUG_CMD, "new sta rates: 0x%x", cmd->supported_rates);
1088
1089         ret = wl1271_cmd_send(wl, CMD_ADD_STA, cmd, sizeof(*cmd), 0);
1090         if (ret < 0) {
1091                 wl1271_error("failed to initiate cmd add sta");
1092                 goto out_free;
1093         }
1094
1095 out_free:
1096         kfree(cmd);
1097
1098 out:
1099         return ret;
1100 }
1101
1102 int wl1271_cmd_remove_sta(struct wl1271 *wl, u8 hlid)
1103 {
1104         struct wl1271_cmd_remove_sta *cmd;
1105         int ret;
1106
1107         wl1271_debug(DEBUG_CMD, "cmd remove sta %d", (int)hlid);
1108
1109         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1110         if (!cmd) {
1111                 ret = -ENOMEM;
1112                 goto out;
1113         }
1114
1115         cmd->hlid = hlid;
1116         /* We never send a deauth, mac80211 is in charge of this */
1117         cmd->reason_opcode = 0;
1118         cmd->send_deauth_flag = 0;
1119
1120         ret = wl1271_cmd_send(wl, CMD_REMOVE_STA, cmd, sizeof(*cmd), 0);
1121         if (ret < 0) {
1122                 wl1271_error("failed to initiate cmd remove sta");
1123                 goto out_free;
1124         }
1125
1126         /*
1127          * We are ok with a timeout here. The event is sometimes not sent
1128          * due to a firmware bug.
1129          */
1130         wl1271_cmd_wait_for_event_or_timeout(wl, STA_REMOVE_COMPLETE_EVENT_ID);
1131
1132 out_free:
1133         kfree(cmd);
1134
1135 out:
1136         return ret;
1137 }