drivers/net/wireless/mwifiex/uap_cmd.c

   1 /*
   2  * Marvell Wireless LAN device driver: AP specific command handling
   3  *
   4  * Copyright (C) 2012-2014, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "main.h"
  21 #include "11ac.h"
  22
  23 /* This function parses security related parameters from cfg80211_ap_settings
  24  * and sets into FW understandable bss_config structure.
  25  */
  26 int mwifiex_set_secure_params(struct mwifiex_private *priv,
  27                               struct mwifiex_uap_bss_param *bss_config,
  28                               struct cfg80211_ap_settings *params) {
  29         int i;
  30         struct mwifiex_wep_key wep_key;
  31
  32         if (!params->privacy) {
  33                 bss_config->protocol = PROTOCOL_NO_SECURITY;
  34                 bss_config->key_mgmt = KEY_MGMT_NONE;
  35                 bss_config->wpa_cfg.length = 0;
  36                 priv->sec_info.wep_enabled = 0;
  37                 priv->sec_info.wpa_enabled = 0;
  38                 priv->sec_info.wpa2_enabled = 0;
  39
  40                 return 0;
  41         }
  42
  43         switch (params->auth_type) {
  44         case NL80211_AUTHTYPE_OPEN_SYSTEM:
  45                 bss_config->auth_mode = WLAN_AUTH_OPEN;
  46                 break;
  47         case NL80211_AUTHTYPE_SHARED_KEY:
  48                 bss_config->auth_mode = WLAN_AUTH_SHARED_KEY;
  49                 break;
  50         case NL80211_AUTHTYPE_NETWORK_EAP:
  51                 bss_config->auth_mode = WLAN_AUTH_LEAP;
  52                 break;
  53         default:
  54                 bss_config->auth_mode = MWIFIEX_AUTH_MODE_AUTO;
  55                 break;
  56         }
  57
  58         bss_config->key_mgmt_operation |= KEY_MGMT_ON_HOST;
  59
  60         for (i = 0; i < params->crypto.n_akm_suites; i++) {
  61                 switch (params->crypto.akm_suites[i]) {
  62                 case WLAN_AKM_SUITE_8021X:
  63                         if (params->crypto.wpa_versions &
  64                             NL80211_WPA_VERSION_1) {
  65                                 bss_config->protocol = PROTOCOL_WPA;
  66                                 bss_config->key_mgmt = KEY_MGMT_EAP;
  67                         }
  68                         if (params->crypto.wpa_versions &
  69                             NL80211_WPA_VERSION_2) {
  70                                 bss_config->protocol |= PROTOCOL_WPA2;
  71                                 bss_config->key_mgmt = KEY_MGMT_EAP;
  72                         }
  73                         break;
  74                 case WLAN_AKM_SUITE_PSK:
  75                         if (params->crypto.wpa_versions &
  76                             NL80211_WPA_VERSION_1) {
  77                                 bss_config->protocol = PROTOCOL_WPA;
  78                                 bss_config->key_mgmt = KEY_MGMT_PSK;
  79                         }
  80                         if (params->crypto.wpa_versions &
  81                             NL80211_WPA_VERSION_2) {
  82                                 bss_config->protocol |= PROTOCOL_WPA2;
  83                                 bss_config->key_mgmt = KEY_MGMT_PSK;
  84                         }
  85                         break;
  86                 default:
  87                         break;
  88                 }
  89         }
  90         for (i = 0; i < params->crypto.n_ciphers_pairwise; i++) {
  91                 switch (params->crypto.ciphers_pairwise[i]) {
  92                 case WLAN_CIPHER_SUITE_WEP40:
  93                 case WLAN_CIPHER_SUITE_WEP104:
  94                         break;
  95                 case WLAN_CIPHER_SUITE_TKIP:
  96                         if (params->crypto.wpa_versions & NL80211_WPA_VERSION_1)
  97                                 bss_config->wpa_cfg.pairwise_cipher_wpa |=
  98                                                                 CIPHER_TKIP;
  99                         if (params->crypto.wpa_versions & NL80211_WPA_VERSION_2)
 100                                 bss_config->wpa_cfg.pairwise_cipher_wpa2 |=
 101                                                                 CIPHER_TKIP;
 102                         break;
 103                 case WLAN_CIPHER_SUITE_CCMP:
 104                         if (params->crypto.wpa_versions & NL80211_WPA_VERSION_1)
 105                                 bss_config->wpa_cfg.pairwise_cipher_wpa |=
 106                                                                 CIPHER_AES_CCMP;
 107                         if (params->crypto.wpa_versions & NL80211_WPA_VERSION_2)
 108                                 bss_config->wpa_cfg.pairwise_cipher_wpa2 |=
 109                                                                 CIPHER_AES_CCMP;
 110                 default:
 111                         break;
 112                 }
 113         }
 114
 115         switch (params->crypto.cipher_group) {
 116         case WLAN_CIPHER_SUITE_WEP40:
 117         case WLAN_CIPHER_SUITE_WEP104:
 118                 if (priv->sec_info.wep_enabled) {
 119                         bss_config->protocol = PROTOCOL_STATIC_WEP;
 120                         bss_config->key_mgmt = KEY_MGMT_NONE;
 121                         bss_config->wpa_cfg.length = 0;
 122
 123                         for (i = 0; i < NUM_WEP_KEYS; i++) {
 124                                 wep_key = priv->wep_key[i];
 125                                 bss_config->wep_cfg[i].key_index = i;
 126
 127                                 if (priv->wep_key_curr_index == i)
 128                                         bss_config->wep_cfg[i].is_default = 1;
 129                                 else
 130                                         bss_config->wep_cfg[i].is_default = 0;
 131
 132                                 bss_config->wep_cfg[i].length =
 133                                                              wep_key.key_length;
 134                                 memcpy(&bss_config->wep_cfg[i].key,
 135                                        &wep_key.key_material,
 136                                        wep_key.key_length);
 137                         }
 138                 }
 139                 break;
 140         case WLAN_CIPHER_SUITE_TKIP:
 141                 bss_config->wpa_cfg.group_cipher = CIPHER_TKIP;
 142                 break;
 143         case WLAN_CIPHER_SUITE_CCMP:
 144                 bss_config->wpa_cfg.group_cipher = CIPHER_AES_CCMP;
 145                 break;
 146         default:
 147                 break;
 148         }
 149
 150         return 0;
 151 }
 152
 153 /* This function updates 11n related parameters from IE and sets them into
 154  * bss_config structure.
 155  */
 156 void
 157 mwifiex_set_ht_params(struct mwifiex_private *priv,
 158                       struct mwifiex_uap_bss_param *bss_cfg,
 159                       struct cfg80211_ap_settings *params)
 160 {
 161         const u8 *ht_ie;
 162         u16 cap_info;
 163
 164         if (!ISSUPP_11NENABLED(priv->adapter->fw_cap_info))
 165                 return;
 166
 167         ht_ie = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, params->beacon.tail,
 168                                  params->beacon.tail_len);
 169         if (ht_ie) {
 170                 memcpy(&bss_cfg->ht_cap, ht_ie,
 171                        sizeof(struct ieee80211_ht_cap));
 172                 cap_info = le16_to_cpu(bss_cfg->ht_cap.cap_info);
 173                 memset(&bss_cfg->ht_cap.mcs, 0,
 174                        priv->adapter->number_of_antenna);
 175                 switch (GET_RXSTBC(cap_info)) {
 176                 case MWIFIEX_RX_STBC1:
 177                         /* HT_CAP 1X1 mode */
 178                         bss_cfg->ht_cap.mcs.rx_mask[0] = 0xff;
 179                         break;
 180                 case MWIFIEX_RX_STBC12: /* fall through */
 181                 case MWIFIEX_RX_STBC123:
 182                         /* HT_CAP 2X2 mode */
 183                         bss_cfg->ht_cap.mcs.rx_mask[0] = 0xff;
 184                         bss_cfg->ht_cap.mcs.rx_mask[1] = 0xff;
 185                         break;
 186                 default:
 187                         dev_warn(priv->adapter->dev,
 188                                  "Unsupported RX-STBC, default to 2x2\n");
 189                         bss_cfg->ht_cap.mcs.rx_mask[0] = 0xff;
 190                         bss_cfg->ht_cap.mcs.rx_mask[1] = 0xff;
 191                         break;
 192                 }
 193                 priv->ap_11n_enabled = 1;
 194         } else {
 195                 memset(&bss_cfg->ht_cap , 0, sizeof(struct ieee80211_ht_cap));
 196                 bss_cfg->ht_cap.cap_info = cpu_to_le16(MWIFIEX_DEF_HT_CAP);
 197                 bss_cfg->ht_cap.ampdu_params_info = MWIFIEX_DEF_AMPDU;
 198         }
 199
 200         return;
 201 }
 202
 203 /* This function updates 11ac related parameters from IE
 204  * and sets them into bss_config structure.
 205  */
 206 void mwifiex_set_vht_params(struct mwifiex_private *priv,
 207                             struct mwifiex_uap_bss_param *bss_cfg,
 208                             struct cfg80211_ap_settings *params)
 209 {
 210         const u8 *vht_ie;
 211
 212         vht_ie = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, params->beacon.tail,
 213                                   params->beacon.tail_len);
 214         if (vht_ie) {
 215                 memcpy(&bss_cfg->vht_cap, vht_ie + 2,
 216                        sizeof(struct ieee80211_vht_cap));
 217                 priv->ap_11ac_enabled = 1;
 218         } else {
 219                 priv->ap_11ac_enabled = 0;
 220         }
 221
 222         return;
 223 }
 224
 225 /* Enable VHT only when cfg80211_ap_settings has VHT IE.
 226  * Otherwise disable VHT.
 227  */
 228 void mwifiex_set_vht_width(struct mwifiex_private *priv,
 229                            enum nl80211_chan_width width,
 230                            bool ap_11ac_enable)
 231 {
 232         struct mwifiex_adapter *adapter = priv->adapter;
 233         struct mwifiex_11ac_vht_cfg vht_cfg;
 234
 235         vht_cfg.band_config = VHT_CFG_5GHZ;
 236         vht_cfg.cap_info = adapter->hw_dot_11ac_dev_cap;
 237
 238         if (!ap_11ac_enable) {
 239                 vht_cfg.mcs_tx_set = DISABLE_VHT_MCS_SET;
 240                 vht_cfg.mcs_rx_set = DISABLE_VHT_MCS_SET;
 241         } else {
 242                 vht_cfg.mcs_tx_set = DEFAULT_VHT_MCS_SET;
 243                 vht_cfg.mcs_rx_set = DEFAULT_VHT_MCS_SET;
 244         }
 245
 246         vht_cfg.misc_config  = VHT_CAP_UAP_ONLY;
 247
 248         if (ap_11ac_enable && width >= NL80211_CHAN_WIDTH_80)
 249                 vht_cfg.misc_config |= VHT_BW_80_160_80P80;
 250
 251         mwifiex_send_cmd(priv, HostCmd_CMD_11AC_CFG,
 252                          HostCmd_ACT_GEN_SET, 0, &vht_cfg, true);
 253
 254         return;
 255 }
 256
 257 /* This function finds supported rates IE from beacon parameter and sets
 258  * these rates into bss_config structure.
 259  */
 260 void
 261 mwifiex_set_uap_rates(struct mwifiex_uap_bss_param *bss_cfg,
 262                       struct cfg80211_ap_settings *params)
 263 {
 264         struct ieee_types_header *rate_ie;
 265         int var_offset = offsetof(struct ieee80211_mgmt, u.beacon.variable);
 266         const u8 *var_pos = params->beacon.head + var_offset;
 267         int len = params->beacon.head_len - var_offset;
 268         u8 rate_len = 0;
 269
 270         rate_ie = (void *)cfg80211_find_ie(WLAN_EID_SUPP_RATES, var_pos, len);
 271         if (rate_ie) {
 272                 memcpy(bss_cfg->rates, rate_ie + 1, rate_ie->len);
 273                 rate_len = rate_ie->len;
 274         }
 275
 276         rate_ie = (void *)cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES,
 277                                            params->beacon.tail,
 278                                            params->beacon.tail_len);
 279         if (rate_ie)
 280                 memcpy(bss_cfg->rates + rate_len, rate_ie + 1, rate_ie->len);
 281
 282         return;
 283 }
 284
 285 /* This function initializes some of mwifiex_uap_bss_param variables.
 286  * This helps FW in ignoring invalid values. These values may or may not
 287  * be get updated to valid ones at later stage.
 288  */
 289 void mwifiex_set_sys_config_invalid_data(struct mwifiex_uap_bss_param *config)
 290 {
 291         config->bcast_ssid_ctl = 0x7F;
 292         config->radio_ctl = 0x7F;
 293         config->dtim_period = 0x7F;
 294         config->beacon_period = 0x7FFF;
 295         config->auth_mode = 0x7F;
 296         config->rts_threshold = 0x7FFF;
 297         config->frag_threshold = 0x7FFF;
 298         config->retry_limit = 0x7F;
 299         config->qos_info = 0xFF;
 300 }
 301
 302 /* This function parses BSS related parameters from structure
 303  * and prepares TLVs specific to WPA/WPA2 security.
 304  * These TLVs are appended to command buffer.
 305  */
 306 static void
 307 mwifiex_uap_bss_wpa(u8 **tlv_buf, void *cmd_buf, u16 *param_size)
 308 {
 309         struct host_cmd_tlv_pwk_cipher *pwk_cipher;
 310         struct host_cmd_tlv_gwk_cipher *gwk_cipher;
 311         struct host_cmd_tlv_passphrase *passphrase;
 312         struct host_cmd_tlv_akmp *tlv_akmp;
 313         struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
 314         u16 cmd_size = *param_size;
 315         u8 *tlv = *tlv_buf;
 316
 317         tlv_akmp = (struct host_cmd_tlv_akmp *)tlv;
 318         tlv_akmp->header.type = cpu_to_le16(TLV_TYPE_UAP_AKMP);
 319         tlv_akmp->header.len = cpu_to_le16(sizeof(struct host_cmd_tlv_akmp) -
 320                                         sizeof(struct mwifiex_ie_types_header));
 321         tlv_akmp->key_mgmt_operation = cpu_to_le16(bss_cfg->key_mgmt_operation);
 322         tlv_akmp->key_mgmt = cpu_to_le16(bss_cfg->key_mgmt);
 323         cmd_size += sizeof(struct host_cmd_tlv_akmp);
 324         tlv += sizeof(struct host_cmd_tlv_akmp);
 325
 326         if (bss_cfg->wpa_cfg.pairwise_cipher_wpa & VALID_CIPHER_BITMAP) {
 327                 pwk_cipher = (struct host_cmd_tlv_pwk_cipher *)tlv;
 328                 pwk_cipher->header.type = cpu_to_le16(TLV_TYPE_PWK_CIPHER);
 329                 pwk_cipher->header.len =
 330                         cpu_to_le16(sizeof(struct host_cmd_tlv_pwk_cipher) -
 331                                     sizeof(struct mwifiex_ie_types_header));
 332                 pwk_cipher->proto = cpu_to_le16(PROTOCOL_WPA);
 333                 pwk_cipher->cipher = bss_cfg->wpa_cfg.pairwise_cipher_wpa;
 334                 cmd_size += sizeof(struct host_cmd_tlv_pwk_cipher);
 335                 tlv += sizeof(struct host_cmd_tlv_pwk_cipher);
 336         }
 337
 338         if (bss_cfg->wpa_cfg.pairwise_cipher_wpa2 & VALID_CIPHER_BITMAP) {
 339                 pwk_cipher = (struct host_cmd_tlv_pwk_cipher *)tlv;
 340                 pwk_cipher->header.type = cpu_to_le16(TLV_TYPE_PWK_CIPHER);
 341                 pwk_cipher->header.len =
 342                         cpu_to_le16(sizeof(struct host_cmd_tlv_pwk_cipher) -
 343                                     sizeof(struct mwifiex_ie_types_header));
 344                 pwk_cipher->proto = cpu_to_le16(PROTOCOL_WPA2);
 345                 pwk_cipher->cipher = bss_cfg->wpa_cfg.pairwise_cipher_wpa2;
 346                 cmd_size += sizeof(struct host_cmd_tlv_pwk_cipher);
 347                 tlv += sizeof(struct host_cmd_tlv_pwk_cipher);
 348         }
 349
 350         if (bss_cfg->wpa_cfg.group_cipher & VALID_CIPHER_BITMAP) {
 351                 gwk_cipher = (struct host_cmd_tlv_gwk_cipher *)tlv;
 352                 gwk_cipher->header.type = cpu_to_le16(TLV_TYPE_GWK_CIPHER);
 353                 gwk_cipher->header.len =
 354                         cpu_to_le16(sizeof(struct host_cmd_tlv_gwk_cipher) -
 355                                     sizeof(struct mwifiex_ie_types_header));
 356                 gwk_cipher->cipher = bss_cfg->wpa_cfg.group_cipher;
 357                 cmd_size += sizeof(struct host_cmd_tlv_gwk_cipher);
 358                 tlv += sizeof(struct host_cmd_tlv_gwk_cipher);
 359         }
 360
 361         if (bss_cfg->wpa_cfg.length) {
 362                 passphrase = (struct host_cmd_tlv_passphrase *)tlv;
 363                 passphrase->header.type =
 364                                 cpu_to_le16(TLV_TYPE_UAP_WPA_PASSPHRASE);
 365                 passphrase->header.len = cpu_to_le16(bss_cfg->wpa_cfg.length);
 366                 memcpy(passphrase->passphrase, bss_cfg->wpa_cfg.passphrase,
 367                        bss_cfg->wpa_cfg.length);
 368                 cmd_size += sizeof(struct mwifiex_ie_types_header) +
 369                             bss_cfg->wpa_cfg.length;
 370                 tlv += sizeof(struct mwifiex_ie_types_header) +
 371                                 bss_cfg->wpa_cfg.length;
 372         }
 373
 374         *param_size = cmd_size;
 375         *tlv_buf = tlv;
 376
 377         return;
 378 }
 379
 380 /* This function parses WMM related parameters from cfg80211_ap_settings
 381  * structure and updates bss_config structure.
 382  */
 383 void
 384 mwifiex_set_wmm_params(struct mwifiex_private *priv,
 385                        struct mwifiex_uap_bss_param *bss_cfg,
 386                        struct cfg80211_ap_settings *params)
 387 {
 388         const u8 *vendor_ie;
 389         struct ieee_types_header *wmm_ie;
 390         u8 wmm_oui[] = {0x00, 0x50, 0xf2, 0x02};
 391
 392         vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
 393                                             WLAN_OUI_TYPE_MICROSOFT_WMM,
 394                                             params->beacon.tail,
 395                                             params->beacon.tail_len);
 396         if (vendor_ie) {
 397                 wmm_ie = (struct ieee_types_header *)vendor_ie;
 398                 memcpy(&bss_cfg->wmm_info, wmm_ie + 1,
 399                        sizeof(bss_cfg->wmm_info));
 400                 priv->wmm_enabled = 1;
 401         } else {
 402                 memset(&bss_cfg->wmm_info, 0, sizeof(bss_cfg->wmm_info));
 403                 memcpy(&bss_cfg->wmm_info.oui, wmm_oui, sizeof(wmm_oui));
 404                 bss_cfg->wmm_info.subtype = MWIFIEX_WMM_SUBTYPE;
 405                 bss_cfg->wmm_info.version = MWIFIEX_WMM_VERSION;
 406                 priv->wmm_enabled = 0;
 407         }
 408
 409         bss_cfg->qos_info = 0x00;
 410         return;
 411 }
 412 /* This function parses BSS related parameters from structure
 413  * and prepares TLVs specific to WEP encryption.
 414  * These TLVs are appended to command buffer.
 415  */
 416 static void
 417 mwifiex_uap_bss_wep(u8 **tlv_buf, void *cmd_buf, u16 *param_size)
 418 {
 419         struct host_cmd_tlv_wep_key *wep_key;
 420         u16 cmd_size = *param_size;
 421         int i;
 422         u8 *tlv = *tlv_buf;
 423         struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
 424
 425         for (i = 0; i < NUM_WEP_KEYS; i++) {
 426                 if (bss_cfg->wep_cfg[i].length &&
 427                     (bss_cfg->wep_cfg[i].length == WLAN_KEY_LEN_WEP40 ||
 428                      bss_cfg->wep_cfg[i].length == WLAN_KEY_LEN_WEP104)) {
 429                         wep_key = (struct host_cmd_tlv_wep_key *)tlv;
 430                         wep_key->header.type =
 431                                 cpu_to_le16(TLV_TYPE_UAP_WEP_KEY);
 432                         wep_key->header.len =
 433                                 cpu_to_le16(bss_cfg->wep_cfg[i].length + 2);
 434                         wep_key->key_index = bss_cfg->wep_cfg[i].key_index;
 435                         wep_key->is_default = bss_cfg->wep_cfg[i].is_default;
 436                         memcpy(wep_key->key, bss_cfg->wep_cfg[i].key,
 437                                bss_cfg->wep_cfg[i].length);
 438                         cmd_size += sizeof(struct mwifiex_ie_types_header) + 2 +
 439                                     bss_cfg->wep_cfg[i].length;
 440                         tlv += sizeof(struct mwifiex_ie_types_header) + 2 +
 441                                     bss_cfg->wep_cfg[i].length;
 442                 }
 443         }
 444
 445         *param_size = cmd_size;
 446         *tlv_buf = tlv;
 447
 448         return;
 449 }
 450
 451 /* This function parses BSS related parameters from structure
 452  * and prepares TLVs. These TLVs are appended to command buffer.
 453 */
 454 static int
 455 mwifiex_uap_bss_param_prepare(u8 *tlv, void *cmd_buf, u16 *param_size)
 456 {
 457         struct host_cmd_tlv_dtim_period *dtim_period;
 458         struct host_cmd_tlv_beacon_period *beacon_period;
 459         struct host_cmd_tlv_ssid *ssid;
 460         struct host_cmd_tlv_bcast_ssid *bcast_ssid;
 461         struct host_cmd_tlv_channel_band *chan_band;
 462         struct host_cmd_tlv_frag_threshold *frag_threshold;
 463         struct host_cmd_tlv_rts_threshold *rts_threshold;
 464         struct host_cmd_tlv_retry_limit *retry_limit;
 465         struct host_cmd_tlv_encrypt_protocol *encrypt_protocol;
 466         struct host_cmd_tlv_auth_type *auth_type;
 467         struct host_cmd_tlv_rates *tlv_rates;
 468         struct host_cmd_tlv_ageout_timer *ao_timer, *ps_ao_timer;
 469         struct mwifiex_ie_types_htcap *htcap;
 470         struct mwifiex_ie_types_wmmcap *wmm_cap;
 471         struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
 472         int i;
 473         u16 cmd_size = *param_size;
 474
 475         if (bss_cfg->ssid.ssid_len) {
 476                 ssid = (struct host_cmd_tlv_ssid *)tlv;
 477                 ssid->header.type = cpu_to_le16(TLV_TYPE_UAP_SSID);
 478                 ssid->header.len = cpu_to_le16((u16)bss_cfg->ssid.ssid_len);
 479                 memcpy(ssid->ssid, bss_cfg->ssid.ssid, bss_cfg->ssid.ssid_len);
 480                 cmd_size += sizeof(struct mwifiex_ie_types_header) +
 481                             bss_cfg->ssid.ssid_len;
 482                 tlv += sizeof(struct mwifiex_ie_types_header) +
 483                                 bss_cfg->ssid.ssid_len;
 484
 485                 bcast_ssid = (struct host_cmd_tlv_bcast_ssid *)tlv;
 486                 bcast_ssid->header.type = cpu_to_le16(TLV_TYPE_UAP_BCAST_SSID);
 487                 bcast_ssid->header.len =
 488                                 cpu_to_le16(sizeof(bcast_ssid->bcast_ctl));
 489                 bcast_ssid->bcast_ctl = bss_cfg->bcast_ssid_ctl;
 490                 cmd_size += sizeof(struct host_cmd_tlv_bcast_ssid);
 491                 tlv += sizeof(struct host_cmd_tlv_bcast_ssid);
 492         }
 493         if (bss_cfg->rates[0]) {
 494                 tlv_rates = (struct host_cmd_tlv_rates *)tlv;
 495                 tlv_rates->header.type = cpu_to_le16(TLV_TYPE_UAP_RATES);
 496
 497                 for (i = 0; i < MWIFIEX_SUPPORTED_RATES && bss_cfg->rates[i];
 498                      i++)
 499                         tlv_rates->rates[i] = bss_cfg->rates[i];
 500
 501                 tlv_rates->header.len = cpu_to_le16(i);
 502                 cmd_size += sizeof(struct host_cmd_tlv_rates) + i;
 503                 tlv += sizeof(struct host_cmd_tlv_rates) + i;
 504         }
 505         if (bss_cfg->channel &&
 506             ((bss_cfg->band_cfg == BAND_CONFIG_BG &&
 507               bss_cfg->channel <= MAX_CHANNEL_BAND_BG) ||
 508             (bss_cfg->band_cfg == BAND_CONFIG_A &&
 509              bss_cfg->channel <= MAX_CHANNEL_BAND_A))) {
 510                 chan_band = (struct host_cmd_tlv_channel_band *)tlv;
 511                 chan_band->header.type = cpu_to_le16(TLV_TYPE_CHANNELBANDLIST);
 512                 chan_band->header.len =
 513                         cpu_to_le16(sizeof(struct host_cmd_tlv_channel_band) -
 514                                     sizeof(struct mwifiex_ie_types_header));
 515                 chan_band->band_config = bss_cfg->band_cfg;
 516                 chan_band->channel = bss_cfg->channel;
 517                 cmd_size += sizeof(struct host_cmd_tlv_channel_band);
 518                 tlv += sizeof(struct host_cmd_tlv_channel_band);
 519         }
 520         if (bss_cfg->beacon_period >= MIN_BEACON_PERIOD &&
 521             bss_cfg->beacon_period <= MAX_BEACON_PERIOD) {
 522                 beacon_period = (struct host_cmd_tlv_beacon_period *)tlv;
 523                 beacon_period->header.type =
 524                                         cpu_to_le16(TLV_TYPE_UAP_BEACON_PERIOD);
 525                 beacon_period->header.len =
 526                         cpu_to_le16(sizeof(struct host_cmd_tlv_beacon_period) -
 527                                     sizeof(struct mwifiex_ie_types_header));
 528                 beacon_period->period = cpu_to_le16(bss_cfg->beacon_period);
 529                 cmd_size += sizeof(struct host_cmd_tlv_beacon_period);
 530                 tlv += sizeof(struct host_cmd_tlv_beacon_period);
 531         }
 532         if (bss_cfg->dtim_period >= MIN_DTIM_PERIOD &&
 533             bss_cfg->dtim_period <= MAX_DTIM_PERIOD) {
 534                 dtim_period = (struct host_cmd_tlv_dtim_period *)tlv;
 535                 dtim_period->header.type =
 536                         cpu_to_le16(TLV_TYPE_UAP_DTIM_PERIOD);
 537                 dtim_period->header.len =
 538                         cpu_to_le16(sizeof(struct host_cmd_tlv_dtim_period) -
 539                                     sizeof(struct mwifiex_ie_types_header));
 540                 dtim_period->period = bss_cfg->dtim_period;
 541                 cmd_size += sizeof(struct host_cmd_tlv_dtim_period);
 542                 tlv += sizeof(struct host_cmd_tlv_dtim_period);
 543         }
 544         if (bss_cfg->rts_threshold <= MWIFIEX_RTS_MAX_VALUE) {
 545                 rts_threshold = (struct host_cmd_tlv_rts_threshold *)tlv;
 546                 rts_threshold->header.type =
 547                                         cpu_to_le16(TLV_TYPE_UAP_RTS_THRESHOLD);
 548                 rts_threshold->header.len =
 549                         cpu_to_le16(sizeof(struct host_cmd_tlv_rts_threshold) -
 550                                     sizeof(struct mwifiex_ie_types_header));
 551                 rts_threshold->rts_thr = cpu_to_le16(bss_cfg->rts_threshold);
 552                 cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
 553                 tlv += sizeof(struct host_cmd_tlv_frag_threshold);
 554         }
 555         if ((bss_cfg->frag_threshold >= MWIFIEX_FRAG_MIN_VALUE) &&
 556             (bss_cfg->frag_threshold <= MWIFIEX_FRAG_MAX_VALUE)) {
 557                 frag_threshold = (struct host_cmd_tlv_frag_threshold *)tlv;
 558                 frag_threshold->header.type =
 559                                 cpu_to_le16(TLV_TYPE_UAP_FRAG_THRESHOLD);
 560                 frag_threshold->header.len =
 561                         cpu_to_le16(sizeof(struct host_cmd_tlv_frag_threshold) -
 562                                     sizeof(struct mwifiex_ie_types_header));
 563                 frag_threshold->frag_thr = cpu_to_le16(bss_cfg->frag_threshold);
 564                 cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
 565                 tlv += sizeof(struct host_cmd_tlv_frag_threshold);
 566         }
 567         if (bss_cfg->retry_limit <= MWIFIEX_RETRY_LIMIT) {
 568                 retry_limit = (struct host_cmd_tlv_retry_limit *)tlv;
 569                 retry_limit->header.type =
 570                         cpu_to_le16(TLV_TYPE_UAP_RETRY_LIMIT);
 571                 retry_limit->header.len =
 572                         cpu_to_le16(sizeof(struct host_cmd_tlv_retry_limit) -
 573                                     sizeof(struct mwifiex_ie_types_header));
 574                 retry_limit->limit = (u8)bss_cfg->retry_limit;
 575                 cmd_size += sizeof(struct host_cmd_tlv_retry_limit);
 576                 tlv += sizeof(struct host_cmd_tlv_retry_limit);
 577         }
 578         if ((bss_cfg->protocol & PROTOCOL_WPA) ||
 579             (bss_cfg->protocol & PROTOCOL_WPA2) ||
 580             (bss_cfg->protocol & PROTOCOL_EAP))
 581                 mwifiex_uap_bss_wpa(&tlv, cmd_buf, &cmd_size);
 582         else
 583                 mwifiex_uap_bss_wep(&tlv, cmd_buf, &cmd_size);
 584
 585         if ((bss_cfg->auth_mode <= WLAN_AUTH_SHARED_KEY) ||
 586             (bss_cfg->auth_mode == MWIFIEX_AUTH_MODE_AUTO)) {
 587                 auth_type = (struct host_cmd_tlv_auth_type *)tlv;
 588                 auth_type->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
 589                 auth_type->header.len =
 590                         cpu_to_le16(sizeof(struct host_cmd_tlv_auth_type) -
 591                         sizeof(struct mwifiex_ie_types_header));
 592                 auth_type->auth_type = (u8)bss_cfg->auth_mode;
 593                 cmd_size += sizeof(struct host_cmd_tlv_auth_type);
 594                 tlv += sizeof(struct host_cmd_tlv_auth_type);
 595         }
 596         if (bss_cfg->protocol) {
 597                 encrypt_protocol = (struct host_cmd_tlv_encrypt_protocol *)tlv;
 598                 encrypt_protocol->header.type =
 599                         cpu_to_le16(TLV_TYPE_UAP_ENCRY_PROTOCOL);
 600                 encrypt_protocol->header.len =
 601                         cpu_to_le16(sizeof(struct host_cmd_tlv_encrypt_protocol)
 602                         - sizeof(struct mwifiex_ie_types_header));
 603                 encrypt_protocol->proto = cpu_to_le16(bss_cfg->protocol);
 604                 cmd_size += sizeof(struct host_cmd_tlv_encrypt_protocol);
 605                 tlv += sizeof(struct host_cmd_tlv_encrypt_protocol);
 606         }
 607
 608         if (bss_cfg->ht_cap.cap_info) {
 609                 htcap = (struct mwifiex_ie_types_htcap *)tlv;
 610                 htcap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
 611                 htcap->header.len =
 612                                 cpu_to_le16(sizeof(struct ieee80211_ht_cap));
 613                 htcap->ht_cap.cap_info = bss_cfg->ht_cap.cap_info;
 614                 htcap->ht_cap.ampdu_params_info =
 615                                              bss_cfg->ht_cap.ampdu_params_info;
 616                 memcpy(&htcap->ht_cap.mcs, &bss_cfg->ht_cap.mcs,
 617                        sizeof(struct ieee80211_mcs_info));
 618                 htcap->ht_cap.extended_ht_cap_info =
 619                                         bss_cfg->ht_cap.extended_ht_cap_info;
 620                 htcap->ht_cap.tx_BF_cap_info = bss_cfg->ht_cap.tx_BF_cap_info;
 621                 htcap->ht_cap.antenna_selection_info =
 622                                         bss_cfg->ht_cap.antenna_selection_info;
 623                 cmd_size += sizeof(struct mwifiex_ie_types_htcap);
 624                 tlv += sizeof(struct mwifiex_ie_types_htcap);
 625         }
 626
 627         if (bss_cfg->wmm_info.qos_info != 0xFF) {
 628                 wmm_cap = (struct mwifiex_ie_types_wmmcap *)tlv;
 629                 wmm_cap->header.type = cpu_to_le16(WLAN_EID_VENDOR_SPECIFIC);
 630                 wmm_cap->header.len = cpu_to_le16(sizeof(wmm_cap->wmm_info));
 631                 memcpy(&wmm_cap->wmm_info, &bss_cfg->wmm_info,
 632                        sizeof(wmm_cap->wmm_info));
 633                 cmd_size += sizeof(struct mwifiex_ie_types_wmmcap);
 634                 tlv += sizeof(struct mwifiex_ie_types_wmmcap);
 635         }
 636
 637         if (bss_cfg->sta_ao_timer) {
 638                 ao_timer = (struct host_cmd_tlv_ageout_timer *)tlv;
 639                 ao_timer->header.type = cpu_to_le16(TLV_TYPE_UAP_AO_TIMER);
 640                 ao_timer->header.len = cpu_to_le16(sizeof(*ao_timer) -
 641                                         sizeof(struct mwifiex_ie_types_header));
 642                 ao_timer->sta_ao_timer = cpu_to_le32(bss_cfg->sta_ao_timer);
 643                 cmd_size += sizeof(*ao_timer);
 644                 tlv += sizeof(*ao_timer);
 645         }
 646
 647         if (bss_cfg->ps_sta_ao_timer) {
 648                 ps_ao_timer = (struct host_cmd_tlv_ageout_timer *)tlv;
 649                 ps_ao_timer->header.type =
 650                                 cpu_to_le16(TLV_TYPE_UAP_PS_AO_TIMER);
 651                 ps_ao_timer->header.len = cpu_to_le16(sizeof(*ps_ao_timer) -
 652                                 sizeof(struct mwifiex_ie_types_header));
 653                 ps_ao_timer->sta_ao_timer =
 654                                         cpu_to_le32(bss_cfg->ps_sta_ao_timer);
 655                 cmd_size += sizeof(*ps_ao_timer);
 656                 tlv += sizeof(*ps_ao_timer);
 657         }
 658
 659         *param_size = cmd_size;
 660
 661         return 0;
 662 }
 663
 664 /* This function parses custom IEs from IE list and prepares command buffer */
 665 static int mwifiex_uap_custom_ie_prepare(u8 *tlv, void *cmd_buf, u16 *ie_size)
 666 {
 667         struct mwifiex_ie_list *ap_ie = cmd_buf;
 668         struct mwifiex_ie_types_header *tlv_ie = (void *)tlv;
 669
 670         if (!ap_ie || !ap_ie->len || !ap_ie->ie_list)
 671                 return -1;
 672
 673         *ie_size += le16_to_cpu(ap_ie->len) +
 674                         sizeof(struct mwifiex_ie_types_header);
 675
 676         tlv_ie->type = cpu_to_le16(TLV_TYPE_MGMT_IE);
 677         tlv_ie->len = ap_ie->len;
 678         tlv += sizeof(struct mwifiex_ie_types_header);
 679
 680         memcpy(tlv, ap_ie->ie_list, le16_to_cpu(ap_ie->len));
 681
 682         return 0;
 683 }
 684
 685 /* Parse AP config structure and prepare TLV based command structure
 686  * to be sent to FW for uAP configuration
 687  */
 688 static int
 689 mwifiex_cmd_uap_sys_config(struct host_cmd_ds_command *cmd, u16 cmd_action,
 690                            u32 type, void *cmd_buf)
 691 {
 692         u8 *tlv;
 693         u16 cmd_size, param_size, ie_size;
 694         struct host_cmd_ds_sys_config *sys_cfg;
 695
 696         cmd->command = cpu_to_le16(HostCmd_CMD_UAP_SYS_CONFIG);
 697         cmd_size = (u16)(sizeof(struct host_cmd_ds_sys_config) + S_DS_GEN);
 698         sys_cfg = (struct host_cmd_ds_sys_config *)&cmd->params.uap_sys_config;
 699         sys_cfg->action = cpu_to_le16(cmd_action);
 700         tlv = sys_cfg->tlv;
 701
 702         switch (type) {
 703         case UAP_BSS_PARAMS_I:
 704                 param_size = cmd_size;
 705                 if (mwifiex_uap_bss_param_prepare(tlv, cmd_buf, &param_size))
 706                         return -1;
 707                 cmd->size = cpu_to_le16(param_size);
 708                 break;
 709         case UAP_CUSTOM_IE_I:
 710                 ie_size = cmd_size;
 711                 if (mwifiex_uap_custom_ie_prepare(tlv, cmd_buf, &ie_size))
 712                         return -1;
 713                 cmd->size = cpu_to_le16(ie_size);
 714                 break;
 715         default:
 716                 return -1;
 717         }
 718
 719         return 0;
 720 }
 721
 722 /* This function prepares AP specific deauth command with mac supplied in
 723  * function parameter.
 724  */
 725 static int mwifiex_cmd_uap_sta_deauth(struct mwifiex_private *priv,
 726                                       struct host_cmd_ds_command *cmd, u8 *mac)
 727 {
 728         struct host_cmd_ds_sta_deauth *sta_deauth = &cmd->params.sta_deauth;
 729
 730         cmd->command = cpu_to_le16(HostCmd_CMD_UAP_STA_DEAUTH);
 731         memcpy(sta_deauth->mac, mac, ETH_ALEN);
 732         sta_deauth->reason = cpu_to_le16(WLAN_REASON_DEAUTH_LEAVING);
 733
 734         cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_sta_deauth) +
 735                                 S_DS_GEN);
 736         return 0;
 737 }
 738
 739 /* This function prepares the AP specific commands before sending them
 740  * to the firmware.
 741  * This is a generic function which calls specific command preparation
 742  * routines based upon the command number.
 743  */
 744 int mwifiex_uap_prepare_cmd(struct mwifiex_private *priv, u16 cmd_no,
 745                             u16 cmd_action, u32 type,
 746                             void *data_buf, void *cmd_buf)
 747 {
 748         struct host_cmd_ds_command *cmd = cmd_buf;
 749
 750         switch (cmd_no) {
 751         case HostCmd_CMD_UAP_SYS_CONFIG:
 752                 if (mwifiex_cmd_uap_sys_config(cmd, cmd_action, type, data_buf))
 753                         return -1;
 754                 break;
 755         case HostCmd_CMD_UAP_BSS_START:
 756         case HostCmd_CMD_UAP_BSS_STOP:
 757                 cmd->command = cpu_to_le16(cmd_no);
 758                 cmd->size = cpu_to_le16(S_DS_GEN);
 759                 break;
 760         case HostCmd_CMD_UAP_STA_DEAUTH:
 761                 if (mwifiex_cmd_uap_sta_deauth(priv, cmd, data_buf))
 762                         return -1;
 763                 break;
 764         default:
 765                 dev_err(priv->adapter->dev,
 766                         "PREP_CMD: unknown cmd %#x\n", cmd_no);
 767                 return -1;
 768         }
 769
 770         return 0;
 771 }