drivers/net/wireless/mwifiex/uap_cmd.c

   1 /*
   2  * Marvell Wireless LAN device driver: AP specific command handling
   3  *
   4  * Copyright (C) 2012, 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
 163         if (!ISSUPP_11NENABLED(priv->adapter->fw_cap_info))
 164                 return;
 165
 166         ht_ie = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, params->beacon.tail,
 167                                  params->beacon.tail_len);
 168         if (ht_ie) {
 169                 memcpy(&bss_cfg->ht_cap, ht_ie + 2,
 170                        sizeof(struct ieee80211_ht_cap));
 171                 priv->ap_11n_enabled = 1;
 172         } else {
 173                 memset(&bss_cfg->ht_cap , 0, sizeof(struct ieee80211_ht_cap));
 174                 bss_cfg->ht_cap.cap_info = cpu_to_le16(MWIFIEX_DEF_HT_CAP);
 175                 bss_cfg->ht_cap.ampdu_params_info = MWIFIEX_DEF_AMPDU;
 176         }
 177
 178         return;
 179 }
 180
 181 /* This function updates 11ac related parameters from IE
 182  * and sets them into bss_config structure.
 183  */
 184 void mwifiex_set_vht_params(struct mwifiex_private *priv,
 185                             struct mwifiex_uap_bss_param *bss_cfg,
 186                             struct cfg80211_ap_settings *params)
 187 {
 188         const u8 *vht_ie;
 189
 190         vht_ie = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, params->beacon.tail,
 191                                   params->beacon.tail_len);
 192         if (vht_ie) {
 193                 memcpy(&bss_cfg->vht_cap, vht_ie + 2,
 194                        sizeof(struct ieee80211_vht_cap));
 195                 priv->ap_11ac_enabled = 1;
 196         } else {
 197                 priv->ap_11ac_enabled = 0;
 198         }
 199
 200         return;
 201 }
 202
 203 /* Enable VHT only when cfg80211_ap_settings has VHT IE.
 204  * Otherwise disable VHT.
 205  */
 206 void mwifiex_set_vht_width(struct mwifiex_private *priv,
 207                            enum nl80211_chan_width width,
 208                            bool ap_11ac_enable)
 209 {
 210         struct mwifiex_adapter *adapter = priv->adapter;
 211         struct mwifiex_11ac_vht_cfg vht_cfg;
 212
 213         vht_cfg.band_config = VHT_CFG_5GHZ;
 214         vht_cfg.cap_info = adapter->hw_dot_11ac_dev_cap;
 215
 216         if (!ap_11ac_enable) {
 217                 vht_cfg.mcs_tx_set = DISABLE_VHT_MCS_SET;
 218                 vht_cfg.mcs_rx_set = DISABLE_VHT_MCS_SET;
 219         } else {
 220                 vht_cfg.mcs_tx_set = DEFAULT_VHT_MCS_SET;
 221                 vht_cfg.mcs_rx_set = DEFAULT_VHT_MCS_SET;
 222         }
 223
 224         vht_cfg.misc_config  = VHT_CAP_UAP_ONLY;
 225
 226         if (ap_11ac_enable && width >= NL80211_CHAN_WIDTH_80)
 227                 vht_cfg.misc_config |= VHT_BW_80_160_80P80;
 228
 229         mwifiex_send_cmd_sync(priv, HostCmd_CMD_11AC_CFG,
 230                               HostCmd_ACT_GEN_SET, 0, &vht_cfg);
 231
 232         return;
 233 }
 234
 235 /* This function finds supported rates IE from beacon parameter and sets
 236  * these rates into bss_config structure.
 237  */
 238 void
 239 mwifiex_set_uap_rates(struct mwifiex_uap_bss_param *bss_cfg,
 240                       struct cfg80211_ap_settings *params)
 241 {
 242         struct ieee_types_header *rate_ie;
 243         int var_offset = offsetof(struct ieee80211_mgmt, u.beacon.variable);
 244         const u8 *var_pos = params->beacon.head + var_offset;
 245         int len = params->beacon.head_len - var_offset;
 246         u8 rate_len = 0;
 247
 248         rate_ie = (void *)cfg80211_find_ie(WLAN_EID_SUPP_RATES, var_pos, len);
 249         if (rate_ie) {
 250                 memcpy(bss_cfg->rates, rate_ie + 1, rate_ie->len);
 251                 rate_len = rate_ie->len;
 252         }
 253
 254         rate_ie = (void *)cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES,
 255                                            params->beacon.tail,
 256                                            params->beacon.tail_len);
 257         if (rate_ie)
 258                 memcpy(bss_cfg->rates + rate_len, rate_ie + 1, rate_ie->len);
 259
 260         return;
 261 }
 262
 263 /* This function initializes some of mwifiex_uap_bss_param variables.
 264  * This helps FW in ignoring invalid values. These values may or may not
 265  * be get updated to valid ones at later stage.
 266  */
 267 void mwifiex_set_sys_config_invalid_data(struct mwifiex_uap_bss_param *config)
 268 {
 269         config->bcast_ssid_ctl = 0x7F;
 270         config->radio_ctl = 0x7F;
 271         config->dtim_period = 0x7F;
 272         config->beacon_period = 0x7FFF;
 273         config->auth_mode = 0x7F;
 274         config->rts_threshold = 0x7FFF;
 275         config->frag_threshold = 0x7FFF;
 276         config->retry_limit = 0x7F;
 277         config->qos_info = 0xFF;
 278 }
 279
 280 /* This function parses BSS related parameters from structure
 281  * and prepares TLVs specific to WPA/WPA2 security.
 282  * These TLVs are appended to command buffer.
 283  */
 284 static void
 285 mwifiex_uap_bss_wpa(u8 **tlv_buf, void *cmd_buf, u16 *param_size)
 286 {
 287         struct host_cmd_tlv_pwk_cipher *pwk_cipher;
 288         struct host_cmd_tlv_gwk_cipher *gwk_cipher;
 289         struct host_cmd_tlv_passphrase *passphrase;
 290         struct host_cmd_tlv_akmp *tlv_akmp;
 291         struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
 292         u16 cmd_size = *param_size;
 293         u8 *tlv = *tlv_buf;
 294
 295         tlv_akmp = (struct host_cmd_tlv_akmp *)tlv;
 296         tlv_akmp->tlv.type = cpu_to_le16(TLV_TYPE_UAP_AKMP);
 297         tlv_akmp->tlv.len = cpu_to_le16(sizeof(struct host_cmd_tlv_akmp) -
 298                                         sizeof(struct host_cmd_tlv));
 299         tlv_akmp->key_mgmt_operation = cpu_to_le16(bss_cfg->key_mgmt_operation);
 300         tlv_akmp->key_mgmt = cpu_to_le16(bss_cfg->key_mgmt);
 301         cmd_size += sizeof(struct host_cmd_tlv_akmp);
 302         tlv += sizeof(struct host_cmd_tlv_akmp);
 303
 304         if (bss_cfg->wpa_cfg.pairwise_cipher_wpa & VALID_CIPHER_BITMAP) {
 305                 pwk_cipher = (struct host_cmd_tlv_pwk_cipher *)tlv;
 306                 pwk_cipher->tlv.type = cpu_to_le16(TLV_TYPE_PWK_CIPHER);
 307                 pwk_cipher->tlv.len =
 308                         cpu_to_le16(sizeof(struct host_cmd_tlv_pwk_cipher) -
 309                                     sizeof(struct host_cmd_tlv));
 310                 pwk_cipher->proto = cpu_to_le16(PROTOCOL_WPA);
 311                 pwk_cipher->cipher = bss_cfg->wpa_cfg.pairwise_cipher_wpa;
 312                 cmd_size += sizeof(struct host_cmd_tlv_pwk_cipher);
 313                 tlv += sizeof(struct host_cmd_tlv_pwk_cipher);
 314         }
 315
 316         if (bss_cfg->wpa_cfg.pairwise_cipher_wpa2 & VALID_CIPHER_BITMAP) {
 317                 pwk_cipher = (struct host_cmd_tlv_pwk_cipher *)tlv;
 318                 pwk_cipher->tlv.type = cpu_to_le16(TLV_TYPE_PWK_CIPHER);
 319                 pwk_cipher->tlv.len =
 320                         cpu_to_le16(sizeof(struct host_cmd_tlv_pwk_cipher) -
 321                                     sizeof(struct host_cmd_tlv));
 322                 pwk_cipher->proto = cpu_to_le16(PROTOCOL_WPA2);
 323                 pwk_cipher->cipher = bss_cfg->wpa_cfg.pairwise_cipher_wpa2;
 324                 cmd_size += sizeof(struct host_cmd_tlv_pwk_cipher);
 325                 tlv += sizeof(struct host_cmd_tlv_pwk_cipher);
 326         }
 327
 328         if (bss_cfg->wpa_cfg.group_cipher & VALID_CIPHER_BITMAP) {
 329                 gwk_cipher = (struct host_cmd_tlv_gwk_cipher *)tlv;
 330                 gwk_cipher->tlv.type = cpu_to_le16(TLV_TYPE_GWK_CIPHER);
 331                 gwk_cipher->tlv.len =
 332                         cpu_to_le16(sizeof(struct host_cmd_tlv_gwk_cipher) -
 333                                     sizeof(struct host_cmd_tlv));
 334                 gwk_cipher->cipher = bss_cfg->wpa_cfg.group_cipher;
 335                 cmd_size += sizeof(struct host_cmd_tlv_gwk_cipher);
 336                 tlv += sizeof(struct host_cmd_tlv_gwk_cipher);
 337         }
 338
 339         if (bss_cfg->wpa_cfg.length) {
 340                 passphrase = (struct host_cmd_tlv_passphrase *)tlv;
 341                 passphrase->tlv.type = cpu_to_le16(TLV_TYPE_UAP_WPA_PASSPHRASE);
 342                 passphrase->tlv.len = cpu_to_le16(bss_cfg->wpa_cfg.length);
 343                 memcpy(passphrase->passphrase, bss_cfg->wpa_cfg.passphrase,
 344                        bss_cfg->wpa_cfg.length);
 345                 cmd_size += sizeof(struct host_cmd_tlv) +
 346                             bss_cfg->wpa_cfg.length;
 347                 tlv += sizeof(struct host_cmd_tlv) + bss_cfg->wpa_cfg.length;
 348         }
 349
 350         *param_size = cmd_size;
 351         *tlv_buf = tlv;
 352
 353         return;
 354 }
 355
 356 /* This function parses WMM related parameters from cfg80211_ap_settings
 357  * structure and updates bss_config structure.
 358  */
 359 void
 360 mwifiex_set_wmm_params(struct mwifiex_private *priv,
 361                        struct mwifiex_uap_bss_param *bss_cfg,
 362                        struct cfg80211_ap_settings *params)
 363 {
 364         const u8 *vendor_ie;
 365         struct ieee_types_header *wmm_ie;
 366         u8 wmm_oui[] = {0x00, 0x50, 0xf2, 0x02};
 367
 368         vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
 369                                             WLAN_OUI_TYPE_MICROSOFT_WMM,
 370                                             params->beacon.tail,
 371                                             params->beacon.tail_len);
 372         if (vendor_ie) {
 373                 wmm_ie = (struct ieee_types_header *)vendor_ie;
 374                 memcpy(&bss_cfg->wmm_info, wmm_ie + 1,
 375                        sizeof(bss_cfg->wmm_info));
 376                 priv->wmm_enabled = 1;
 377         } else {
 378                 memset(&bss_cfg->wmm_info, 0, sizeof(bss_cfg->wmm_info));
 379                 memcpy(&bss_cfg->wmm_info.oui, wmm_oui, sizeof(wmm_oui));
 380                 bss_cfg->wmm_info.subtype = MWIFIEX_WMM_SUBTYPE;
 381                 bss_cfg->wmm_info.version = MWIFIEX_WMM_VERSION;
 382                 priv->wmm_enabled = 0;
 383         }
 384
 385         bss_cfg->qos_info = 0x00;
 386         return;
 387 }
 388 /* This function parses BSS related parameters from structure
 389  * and prepares TLVs specific to WEP encryption.
 390  * These TLVs are appended to command buffer.
 391  */
 392 static void
 393 mwifiex_uap_bss_wep(u8 **tlv_buf, void *cmd_buf, u16 *param_size)
 394 {
 395         struct host_cmd_tlv_wep_key *wep_key;
 396         u16 cmd_size = *param_size;
 397         int i;
 398         u8 *tlv = *tlv_buf;
 399         struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
 400
 401         for (i = 0; i < NUM_WEP_KEYS; i++) {
 402                 if (bss_cfg->wep_cfg[i].length &&
 403                     (bss_cfg->wep_cfg[i].length == WLAN_KEY_LEN_WEP40 ||
 404                      bss_cfg->wep_cfg[i].length == WLAN_KEY_LEN_WEP104)) {
 405                         wep_key = (struct host_cmd_tlv_wep_key *)tlv;
 406                         wep_key->tlv.type = cpu_to_le16(TLV_TYPE_UAP_WEP_KEY);
 407                         wep_key->tlv.len =
 408                                 cpu_to_le16(bss_cfg->wep_cfg[i].length + 2);
 409                         wep_key->key_index = bss_cfg->wep_cfg[i].key_index;
 410                         wep_key->is_default = bss_cfg->wep_cfg[i].is_default;
 411                         memcpy(wep_key->key, bss_cfg->wep_cfg[i].key,
 412                                bss_cfg->wep_cfg[i].length);
 413                         cmd_size += sizeof(struct host_cmd_tlv) + 2 +
 414                                     bss_cfg->wep_cfg[i].length;
 415                         tlv += sizeof(struct host_cmd_tlv) + 2 +
 416                                     bss_cfg->wep_cfg[i].length;
 417                 }
 418         }
 419
 420         *param_size = cmd_size;
 421         *tlv_buf = tlv;
 422
 423         return;
 424 }
 425
 426 /* This function parses BSS related parameters from structure
 427  * and prepares TLVs. These TLVs are appended to command buffer.
 428 */
 429 static int
 430 mwifiex_uap_bss_param_prepare(u8 *tlv, void *cmd_buf, u16 *param_size)
 431 {
 432         struct host_cmd_tlv_dtim_period *dtim_period;
 433         struct host_cmd_tlv_beacon_period *beacon_period;
 434         struct host_cmd_tlv_ssid *ssid;
 435         struct host_cmd_tlv_bcast_ssid *bcast_ssid;
 436         struct host_cmd_tlv_channel_band *chan_band;
 437         struct host_cmd_tlv_frag_threshold *frag_threshold;
 438         struct host_cmd_tlv_rts_threshold *rts_threshold;
 439         struct host_cmd_tlv_retry_limit *retry_limit;
 440         struct host_cmd_tlv_encrypt_protocol *encrypt_protocol;
 441         struct host_cmd_tlv_auth_type *auth_type;
 442         struct host_cmd_tlv_rates *tlv_rates;
 443         struct host_cmd_tlv_ageout_timer *ao_timer, *ps_ao_timer;
 444         struct mwifiex_ie_types_htcap *htcap;
 445         struct mwifiex_ie_types_wmmcap *wmm_cap;
 446         struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
 447         int i;
 448         u16 cmd_size = *param_size;
 449
 450         if (bss_cfg->ssid.ssid_len) {
 451                 ssid = (struct host_cmd_tlv_ssid *)tlv;
 452                 ssid->tlv.type = cpu_to_le16(TLV_TYPE_UAP_SSID);
 453                 ssid->tlv.len = cpu_to_le16((u16)bss_cfg->ssid.ssid_len);
 454                 memcpy(ssid->ssid, bss_cfg->ssid.ssid, bss_cfg->ssid.ssid_len);
 455                 cmd_size += sizeof(struct host_cmd_tlv) +
 456                             bss_cfg->ssid.ssid_len;
 457                 tlv += sizeof(struct host_cmd_tlv) + bss_cfg->ssid.ssid_len;
 458
 459                 bcast_ssid = (struct host_cmd_tlv_bcast_ssid *)tlv;
 460                 bcast_ssid->tlv.type = cpu_to_le16(TLV_TYPE_UAP_BCAST_SSID);
 461                 bcast_ssid->tlv.len =
 462                                 cpu_to_le16(sizeof(bcast_ssid->bcast_ctl));
 463                 bcast_ssid->bcast_ctl = bss_cfg->bcast_ssid_ctl;
 464                 cmd_size += sizeof(struct host_cmd_tlv_bcast_ssid);
 465                 tlv += sizeof(struct host_cmd_tlv_bcast_ssid);
 466         }
 467         if (bss_cfg->rates[0]) {
 468                 tlv_rates = (struct host_cmd_tlv_rates *)tlv;
 469                 tlv_rates->tlv.type = cpu_to_le16(TLV_TYPE_UAP_RATES);
 470
 471                 for (i = 0; i < MWIFIEX_SUPPORTED_RATES && bss_cfg->rates[i];
 472                      i++)
 473                         tlv_rates->rates[i] = bss_cfg->rates[i];
 474
 475                 tlv_rates->tlv.len = cpu_to_le16(i);
 476                 cmd_size += sizeof(struct host_cmd_tlv_rates) + i;
 477                 tlv += sizeof(struct host_cmd_tlv_rates) + i;
 478         }
 479         if (bss_cfg->channel &&
 480             ((bss_cfg->band_cfg == BAND_CONFIG_BG &&
 481               bss_cfg->channel <= MAX_CHANNEL_BAND_BG) ||
 482             (bss_cfg->band_cfg == BAND_CONFIG_A &&
 483              bss_cfg->channel <= MAX_CHANNEL_BAND_A))) {
 484                 chan_band = (struct host_cmd_tlv_channel_band *)tlv;
 485                 chan_band->tlv.type = cpu_to_le16(TLV_TYPE_CHANNELBANDLIST);
 486                 chan_band->tlv.len =
 487                         cpu_to_le16(sizeof(struct host_cmd_tlv_channel_band) -
 488                                     sizeof(struct host_cmd_tlv));
 489                 chan_band->band_config = bss_cfg->band_cfg;
 490                 chan_band->channel = bss_cfg->channel;
 491                 cmd_size += sizeof(struct host_cmd_tlv_channel_band);
 492                 tlv += sizeof(struct host_cmd_tlv_channel_band);
 493         }
 494         if (bss_cfg->beacon_period >= MIN_BEACON_PERIOD &&
 495             bss_cfg->beacon_period <= MAX_BEACON_PERIOD) {
 496                 beacon_period = (struct host_cmd_tlv_beacon_period *)tlv;
 497                 beacon_period->tlv.type =
 498                                         cpu_to_le16(TLV_TYPE_UAP_BEACON_PERIOD);
 499                 beacon_period->tlv.len =
 500                         cpu_to_le16(sizeof(struct host_cmd_tlv_beacon_period) -
 501                                     sizeof(struct host_cmd_tlv));
 502                 beacon_period->period = cpu_to_le16(bss_cfg->beacon_period);
 503                 cmd_size += sizeof(struct host_cmd_tlv_beacon_period);
 504                 tlv += sizeof(struct host_cmd_tlv_beacon_period);
 505         }
 506         if (bss_cfg->dtim_period >= MIN_DTIM_PERIOD &&
 507             bss_cfg->dtim_period <= MAX_DTIM_PERIOD) {
 508                 dtim_period = (struct host_cmd_tlv_dtim_period *)tlv;
 509                 dtim_period->tlv.type = cpu_to_le16(TLV_TYPE_UAP_DTIM_PERIOD);
 510                 dtim_period->tlv.len =
 511                         cpu_to_le16(sizeof(struct host_cmd_tlv_dtim_period) -
 512                                     sizeof(struct host_cmd_tlv));
 513                 dtim_period->period = bss_cfg->dtim_period;
 514                 cmd_size += sizeof(struct host_cmd_tlv_dtim_period);
 515                 tlv += sizeof(struct host_cmd_tlv_dtim_period);
 516         }
 517         if (bss_cfg->rts_threshold <= MWIFIEX_RTS_MAX_VALUE) {
 518                 rts_threshold = (struct host_cmd_tlv_rts_threshold *)tlv;
 519                 rts_threshold->tlv.type =
 520                                         cpu_to_le16(TLV_TYPE_UAP_RTS_THRESHOLD);
 521                 rts_threshold->tlv.len =
 522                         cpu_to_le16(sizeof(struct host_cmd_tlv_rts_threshold) -
 523                                     sizeof(struct host_cmd_tlv));
 524                 rts_threshold->rts_thr = cpu_to_le16(bss_cfg->rts_threshold);
 525                 cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
 526                 tlv += sizeof(struct host_cmd_tlv_frag_threshold);
 527         }
 528         if ((bss_cfg->frag_threshold >= MWIFIEX_FRAG_MIN_VALUE) &&
 529             (bss_cfg->frag_threshold <= MWIFIEX_FRAG_MAX_VALUE)) {
 530                 frag_threshold = (struct host_cmd_tlv_frag_threshold *)tlv;
 531                 frag_threshold->tlv.type =
 532                                 cpu_to_le16(TLV_TYPE_UAP_FRAG_THRESHOLD);
 533                 frag_threshold->tlv.len =
 534                         cpu_to_le16(sizeof(struct host_cmd_tlv_frag_threshold) -
 535                                     sizeof(struct host_cmd_tlv));
 536                 frag_threshold->frag_thr = cpu_to_le16(bss_cfg->frag_threshold);
 537                 cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
 538                 tlv += sizeof(struct host_cmd_tlv_frag_threshold);
 539         }
 540         if (bss_cfg->retry_limit <= MWIFIEX_RETRY_LIMIT) {
 541                 retry_limit = (struct host_cmd_tlv_retry_limit *)tlv;
 542                 retry_limit->tlv.type = cpu_to_le16(TLV_TYPE_UAP_RETRY_LIMIT);
 543                 retry_limit->tlv.len =
 544                         cpu_to_le16(sizeof(struct host_cmd_tlv_retry_limit) -
 545                                     sizeof(struct host_cmd_tlv));
 546                 retry_limit->limit = (u8)bss_cfg->retry_limit;
 547                 cmd_size += sizeof(struct host_cmd_tlv_retry_limit);
 548                 tlv += sizeof(struct host_cmd_tlv_retry_limit);
 549         }
 550         if ((bss_cfg->protocol & PROTOCOL_WPA) ||
 551             (bss_cfg->protocol & PROTOCOL_WPA2) ||
 552             (bss_cfg->protocol & PROTOCOL_EAP))
 553                 mwifiex_uap_bss_wpa(&tlv, cmd_buf, &cmd_size);
 554         else
 555                 mwifiex_uap_bss_wep(&tlv, cmd_buf, &cmd_size);
 556
 557         if ((bss_cfg->auth_mode <= WLAN_AUTH_SHARED_KEY) ||
 558             (bss_cfg->auth_mode == MWIFIEX_AUTH_MODE_AUTO)) {
 559                 auth_type = (struct host_cmd_tlv_auth_type *)tlv;
 560                 auth_type->tlv.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
 561                 auth_type->tlv.len =
 562                         cpu_to_le16(sizeof(struct host_cmd_tlv_auth_type) -
 563                         sizeof(struct host_cmd_tlv));
 564                 auth_type->auth_type = (u8)bss_cfg->auth_mode;
 565                 cmd_size += sizeof(struct host_cmd_tlv_auth_type);
 566                 tlv += sizeof(struct host_cmd_tlv_auth_type);
 567         }
 568         if (bss_cfg->protocol) {
 569                 encrypt_protocol = (struct host_cmd_tlv_encrypt_protocol *)tlv;
 570                 encrypt_protocol->tlv.type =
 571                         cpu_to_le16(TLV_TYPE_UAP_ENCRY_PROTOCOL);
 572                 encrypt_protocol->tlv.len =
 573                         cpu_to_le16(sizeof(struct host_cmd_tlv_encrypt_protocol)
 574                         - sizeof(struct host_cmd_tlv));
 575                 encrypt_protocol->proto = cpu_to_le16(bss_cfg->protocol);
 576                 cmd_size += sizeof(struct host_cmd_tlv_encrypt_protocol);
 577                 tlv += sizeof(struct host_cmd_tlv_encrypt_protocol);
 578         }
 579
 580         if (bss_cfg->ht_cap.cap_info) {
 581                 htcap = (struct mwifiex_ie_types_htcap *)tlv;
 582                 htcap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
 583                 htcap->header.len =
 584                                 cpu_to_le16(sizeof(struct ieee80211_ht_cap));
 585                 htcap->ht_cap.cap_info = bss_cfg->ht_cap.cap_info;
 586                 htcap->ht_cap.ampdu_params_info =
 587                                              bss_cfg->ht_cap.ampdu_params_info;
 588                 memcpy(&htcap->ht_cap.mcs, &bss_cfg->ht_cap.mcs,
 589                        sizeof(struct ieee80211_mcs_info));
 590                 htcap->ht_cap.extended_ht_cap_info =
 591                                         bss_cfg->ht_cap.extended_ht_cap_info;
 592                 htcap->ht_cap.tx_BF_cap_info = bss_cfg->ht_cap.tx_BF_cap_info;
 593                 htcap->ht_cap.antenna_selection_info =
 594                                         bss_cfg->ht_cap.antenna_selection_info;
 595                 cmd_size += sizeof(struct mwifiex_ie_types_htcap);
 596                 tlv += sizeof(struct mwifiex_ie_types_htcap);
 597         }
 598
 599         if (bss_cfg->wmm_info.qos_info != 0xFF) {
 600                 wmm_cap = (struct mwifiex_ie_types_wmmcap *)tlv;
 601                 wmm_cap->header.type = cpu_to_le16(WLAN_EID_VENDOR_SPECIFIC);
 602                 wmm_cap->header.len = cpu_to_le16(sizeof(wmm_cap->wmm_info));
 603                 memcpy(&wmm_cap->wmm_info, &bss_cfg->wmm_info,
 604                        sizeof(wmm_cap->wmm_info));
 605                 cmd_size += sizeof(struct mwifiex_ie_types_wmmcap);
 606                 tlv += sizeof(struct mwifiex_ie_types_wmmcap);
 607         }
 608
 609         if (bss_cfg->sta_ao_timer) {
 610                 ao_timer = (struct host_cmd_tlv_ageout_timer *)tlv;
 611                 ao_timer->tlv.type = cpu_to_le16(TLV_TYPE_UAP_AO_TIMER);
 612                 ao_timer->tlv.len = cpu_to_le16(sizeof(*ao_timer) -
 613                                                 sizeof(struct host_cmd_tlv));
 614                 ao_timer->sta_ao_timer = cpu_to_le32(bss_cfg->sta_ao_timer);
 615                 cmd_size += sizeof(*ao_timer);
 616                 tlv += sizeof(*ao_timer);
 617         }
 618
 619         if (bss_cfg->ps_sta_ao_timer) {
 620                 ps_ao_timer = (struct host_cmd_tlv_ageout_timer *)tlv;
 621                 ps_ao_timer->tlv.type = cpu_to_le16(TLV_TYPE_UAP_PS_AO_TIMER);
 622                 ps_ao_timer->tlv.len = cpu_to_le16(sizeof(*ps_ao_timer) -
 623                                                    sizeof(struct host_cmd_tlv));
 624                 ps_ao_timer->sta_ao_timer =
 625                                         cpu_to_le32(bss_cfg->ps_sta_ao_timer);
 626                 cmd_size += sizeof(*ps_ao_timer);
 627                 tlv += sizeof(*ps_ao_timer);
 628         }
 629
 630         *param_size = cmd_size;
 631
 632         return 0;
 633 }
 634
 635 /* This function parses custom IEs from IE list and prepares command buffer */
 636 static int mwifiex_uap_custom_ie_prepare(u8 *tlv, void *cmd_buf, u16 *ie_size)
 637 {
 638         struct mwifiex_ie_list *ap_ie = cmd_buf;
 639         struct host_cmd_tlv *tlv_ie = (struct host_cmd_tlv *)tlv;
 640
 641         if (!ap_ie || !ap_ie->len || !ap_ie->ie_list)
 642                 return -1;
 643
 644         *ie_size += le16_to_cpu(ap_ie->len) + sizeof(struct host_cmd_tlv);
 645
 646         tlv_ie->type = cpu_to_le16(TLV_TYPE_MGMT_IE);
 647         tlv_ie->len = ap_ie->len;
 648         tlv += sizeof(struct host_cmd_tlv);
 649
 650         memcpy(tlv, ap_ie->ie_list, le16_to_cpu(ap_ie->len));
 651
 652         return 0;
 653 }
 654
 655 /* Parse AP config structure and prepare TLV based command structure
 656  * to be sent to FW for uAP configuration
 657  */
 658 static int
 659 mwifiex_cmd_uap_sys_config(struct host_cmd_ds_command *cmd, u16 cmd_action,
 660                            u32 type, void *cmd_buf)
 661 {
 662         u8 *tlv;
 663         u16 cmd_size, param_size, ie_size;
 664         struct host_cmd_ds_sys_config *sys_cfg;
 665
 666         cmd->command = cpu_to_le16(HostCmd_CMD_UAP_SYS_CONFIG);
 667         cmd_size = (u16)(sizeof(struct host_cmd_ds_sys_config) + S_DS_GEN);
 668         sys_cfg = (struct host_cmd_ds_sys_config *)&cmd->params.uap_sys_config;
 669         sys_cfg->action = cpu_to_le16(cmd_action);
 670         tlv = sys_cfg->tlv;
 671
 672         switch (type) {
 673         case UAP_BSS_PARAMS_I:
 674                 param_size = cmd_size;
 675                 if (mwifiex_uap_bss_param_prepare(tlv, cmd_buf, &param_size))
 676                         return -1;
 677                 cmd->size = cpu_to_le16(param_size);
 678                 break;
 679         case UAP_CUSTOM_IE_I:
 680                 ie_size = cmd_size;
 681                 if (mwifiex_uap_custom_ie_prepare(tlv, cmd_buf, &ie_size))
 682                         return -1;
 683                 cmd->size = cpu_to_le16(ie_size);
 684                 break;
 685         default:
 686                 return -1;
 687         }
 688
 689         return 0;
 690 }
 691
 692 /* This function prepares AP specific deauth command with mac supplied in
 693  * function parameter.
 694  */
 695 static int mwifiex_cmd_uap_sta_deauth(struct mwifiex_private *priv,
 696                                       struct host_cmd_ds_command *cmd, u8 *mac)
 697 {
 698         struct host_cmd_ds_sta_deauth *sta_deauth = &cmd->params.sta_deauth;
 699
 700         cmd->command = cpu_to_le16(HostCmd_CMD_UAP_STA_DEAUTH);
 701         memcpy(sta_deauth->mac, mac, ETH_ALEN);
 702         sta_deauth->reason = cpu_to_le16(WLAN_REASON_DEAUTH_LEAVING);
 703
 704         cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_sta_deauth) +
 705                                 S_DS_GEN);
 706         return 0;
 707 }
 708
 709 /* This function prepares the AP specific commands before sending them
 710  * to the firmware.
 711  * This is a generic function which calls specific command preparation
 712  * routines based upon the command number.
 713  */
 714 int mwifiex_uap_prepare_cmd(struct mwifiex_private *priv, u16 cmd_no,
 715                             u16 cmd_action, u32 type,
 716                             void *data_buf, void *cmd_buf)
 717 {
 718         struct host_cmd_ds_command *cmd = cmd_buf;
 719
 720         switch (cmd_no) {
 721         case HostCmd_CMD_UAP_SYS_CONFIG:
 722                 if (mwifiex_cmd_uap_sys_config(cmd, cmd_action, type, data_buf))
 723                         return -1;
 724                 break;
 725         case HostCmd_CMD_UAP_BSS_START:
 726         case HostCmd_CMD_UAP_BSS_STOP:
 727                 cmd->command = cpu_to_le16(cmd_no);
 728                 cmd->size = cpu_to_le16(S_DS_GEN);
 729                 break;
 730         case HostCmd_CMD_UAP_STA_DEAUTH:
 731                 if (mwifiex_cmd_uap_sta_deauth(priv, cmd, data_buf))
 732                         return -1;
 733                 break;
 734         default:
 735                 dev_err(priv->adapter->dev,
 736                         "PREP_CMD: unknown cmd %#x\n", cmd_no);
 737                 return -1;
 738         }
 739
 740         return 0;
 741 }