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
  22 /* This function parses security related parameters from cfg80211_ap_settings
  23  * and sets into FW understandable bss_config structure.
  24  */
  25 int mwifiex_set_secure_params(struct mwifiex_private *priv,
  26                               struct mwifiex_uap_bss_param *bss_config,
  27                               struct cfg80211_ap_settings *params) {
  28         int i;
  29         struct mwifiex_wep_key wep_key;
  30
  31         if (!params->privacy) {
  32                 bss_config->protocol = PROTOCOL_NO_SECURITY;
  33                 bss_config->key_mgmt = KEY_MGMT_NONE;
  34                 bss_config->wpa_cfg.length = 0;
  35                 priv->sec_info.wep_enabled = 0;
  36                 priv->sec_info.wpa_enabled = 0;
  37                 priv->sec_info.wpa2_enabled = 0;
  38
  39                 return 0;
  40         }
  41
  42         switch (params->auth_type) {
  43         case NL80211_AUTHTYPE_OPEN_SYSTEM:
  44                 bss_config->auth_mode = WLAN_AUTH_OPEN;
  45                 break;
  46         case NL80211_AUTHTYPE_SHARED_KEY:
  47                 bss_config->auth_mode = WLAN_AUTH_SHARED_KEY;
  48                 break;
  49         case NL80211_AUTHTYPE_NETWORK_EAP:
  50                 bss_config->auth_mode = WLAN_AUTH_LEAP;
  51                 break;
  52         default:
  53                 bss_config->auth_mode = MWIFIEX_AUTH_MODE_AUTO;
  54                 break;
  55         }
  56
  57         bss_config->key_mgmt_operation |= KEY_MGMT_ON_HOST;
  58
  59         for (i = 0; i < params->crypto.n_akm_suites; i++) {
  60                 switch (params->crypto.akm_suites[i]) {
  61                 case WLAN_AKM_SUITE_8021X:
  62                         if (params->crypto.wpa_versions &
  63                             NL80211_WPA_VERSION_1) {
  64                                 bss_config->protocol = PROTOCOL_WPA;
  65                                 bss_config->key_mgmt = KEY_MGMT_EAP;
  66                         }
  67                         if (params->crypto.wpa_versions &
  68                             NL80211_WPA_VERSION_2) {
  69                                 bss_config->protocol |= PROTOCOL_WPA2;
  70                                 bss_config->key_mgmt = KEY_MGMT_EAP;
  71                         }
  72                         break;
  73                 case WLAN_AKM_SUITE_PSK:
  74                         if (params->crypto.wpa_versions &
  75                             NL80211_WPA_VERSION_1) {
  76                                 bss_config->protocol = PROTOCOL_WPA;
  77                                 bss_config->key_mgmt = KEY_MGMT_PSK;
  78                         }
  79                         if (params->crypto.wpa_versions &
  80                             NL80211_WPA_VERSION_2) {
  81                                 bss_config->protocol |= PROTOCOL_WPA2;
  82                                 bss_config->key_mgmt = KEY_MGMT_PSK;
  83                         }
  84                         break;
  85                 default:
  86                         break;
  87                 }
  88         }
  89         for (i = 0; i < params->crypto.n_ciphers_pairwise; i++) {
  90                 switch (params->crypto.ciphers_pairwise[i]) {
  91                 case WLAN_CIPHER_SUITE_WEP40:
  92                 case WLAN_CIPHER_SUITE_WEP104:
  93                         break;
  94                 case WLAN_CIPHER_SUITE_TKIP:
  95                         if (params->crypto.wpa_versions & NL80211_WPA_VERSION_1)
  96                                 bss_config->wpa_cfg.pairwise_cipher_wpa |=
  97                                                                 CIPHER_TKIP;
  98                         if (params->crypto.wpa_versions & NL80211_WPA_VERSION_2)
  99                                 bss_config->wpa_cfg.pairwise_cipher_wpa2 |=
 100                                                                 CIPHER_TKIP;
 101                         break;
 102                 case WLAN_CIPHER_SUITE_CCMP:
 103                         if (params->crypto.wpa_versions & NL80211_WPA_VERSION_1)
 104                                 bss_config->wpa_cfg.pairwise_cipher_wpa |=
 105                                                                 CIPHER_AES_CCMP;
 106                         if (params->crypto.wpa_versions & NL80211_WPA_VERSION_2)
 107                                 bss_config->wpa_cfg.pairwise_cipher_wpa2 |=
 108                                                                 CIPHER_AES_CCMP;
 109                 default:
 110                         break;
 111                 }
 112         }
 113
 114         switch (params->crypto.cipher_group) {
 115         case WLAN_CIPHER_SUITE_WEP40:
 116         case WLAN_CIPHER_SUITE_WEP104:
 117                 if (priv->sec_info.wep_enabled) {
 118                         bss_config->protocol = PROTOCOL_STATIC_WEP;
 119                         bss_config->key_mgmt = KEY_MGMT_NONE;
 120                         bss_config->wpa_cfg.length = 0;
 121
 122                         for (i = 0; i < NUM_WEP_KEYS; i++) {
 123                                 wep_key = priv->wep_key[i];
 124                                 bss_config->wep_cfg[i].key_index = i;
 125
 126                                 if (priv->wep_key_curr_index == i)
 127                                         bss_config->wep_cfg[i].is_default = 1;
 128                                 else
 129                                         bss_config->wep_cfg[i].is_default = 0;
 130
 131                                 bss_config->wep_cfg[i].length =
 132                                                              wep_key.key_length;
 133                                 memcpy(&bss_config->wep_cfg[i].key,
 134                                        &wep_key.key_material,
 135                                        wep_key.key_length);
 136                         }
 137                 }
 138                 break;
 139         case WLAN_CIPHER_SUITE_TKIP:
 140                 bss_config->wpa_cfg.group_cipher = CIPHER_TKIP;
 141                 break;
 142         case WLAN_CIPHER_SUITE_CCMP:
 143                 bss_config->wpa_cfg.group_cipher = CIPHER_AES_CCMP;
 144                 break;
 145         default:
 146                 break;
 147         }
 148
 149         return 0;
 150 }
 151
 152 /* This function updates 11n related parameters from IE and sets them into
 153  * bss_config structure.
 154  */
 155 void
 156 mwifiex_set_ht_params(struct mwifiex_private *priv,
 157                       struct mwifiex_uap_bss_param *bss_cfg,
 158                       struct cfg80211_ap_settings *params)
 159 {
 160         const u8 *ht_ie;
 161
 162         if (!ISSUPP_11NENABLED(priv->adapter->fw_cap_info))
 163                 return;
 164
 165         ht_ie = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, params->beacon.tail,
 166                                  params->beacon.tail_len);
 167         if (ht_ie) {
 168                 memcpy(&bss_cfg->ht_cap, ht_ie + 2,
 169                        sizeof(struct ieee80211_ht_cap));
 170                 priv->ap_11n_enabled = 1;
 171         } else {
 172                 memset(&bss_cfg->ht_cap , 0, sizeof(struct ieee80211_ht_cap));
 173                 bss_cfg->ht_cap.cap_info = cpu_to_le16(MWIFIEX_DEF_HT_CAP);
 174                 bss_cfg->ht_cap.ampdu_params_info = MWIFIEX_DEF_AMPDU;
 175         }
 176
 177         return;
 178 }
 179
 180 /* This function finds supported rates IE from beacon parameter and sets
 181  * these rates into bss_config structure.
 182  */
 183 void
 184 mwifiex_set_uap_rates(struct mwifiex_uap_bss_param *bss_cfg,
 185                       struct cfg80211_ap_settings *params)
 186 {
 187         struct ieee_types_header *rate_ie;
 188         int var_offset = offsetof(struct ieee80211_mgmt, u.beacon.variable);
 189         const u8 *var_pos = params->beacon.head + var_offset;
 190         int len = params->beacon.head_len - var_offset;
 191         u8 rate_len = 0;
 192
 193         rate_ie = (void *)cfg80211_find_ie(WLAN_EID_SUPP_RATES, var_pos, len);
 194         if (rate_ie) {
 195                 memcpy(bss_cfg->rates, rate_ie + 1, rate_ie->len);
 196                 rate_len = rate_ie->len;
 197         }
 198
 199         rate_ie = (void *)cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES,
 200                                            params->beacon.tail,
 201                                            params->beacon.tail_len);
 202         if (rate_ie)
 203                 memcpy(bss_cfg->rates + rate_len, rate_ie + 1, rate_ie->len);
 204
 205         return;
 206 }
 207
 208 /* This function initializes some of mwifiex_uap_bss_param variables.
 209  * This helps FW in ignoring invalid values. These values may or may not
 210  * be get updated to valid ones at later stage.
 211  */
 212 void mwifiex_set_sys_config_invalid_data(struct mwifiex_uap_bss_param *config)
 213 {
 214         config->bcast_ssid_ctl = 0x7F;
 215         config->radio_ctl = 0x7F;
 216         config->dtim_period = 0x7F;
 217         config->beacon_period = 0x7FFF;
 218         config->auth_mode = 0x7F;
 219         config->rts_threshold = 0x7FFF;
 220         config->frag_threshold = 0x7FFF;
 221         config->retry_limit = 0x7F;
 222 }
 223
 224 /* This function parses BSS related parameters from structure
 225  * and prepares TLVs specific to WPA/WPA2 security.
 226  * These TLVs are appended to command buffer.
 227  */
 228 static void
 229 mwifiex_uap_bss_wpa(u8 **tlv_buf, void *cmd_buf, u16 *param_size)
 230 {
 231         struct host_cmd_tlv_pwk_cipher *pwk_cipher;
 232         struct host_cmd_tlv_gwk_cipher *gwk_cipher;
 233         struct host_cmd_tlv_passphrase *passphrase;
 234         struct host_cmd_tlv_akmp *tlv_akmp;
 235         struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
 236         u16 cmd_size = *param_size;
 237         u8 *tlv = *tlv_buf;
 238
 239         tlv_akmp = (struct host_cmd_tlv_akmp *)tlv;
 240         tlv_akmp->tlv.type = cpu_to_le16(TLV_TYPE_UAP_AKMP);
 241         tlv_akmp->tlv.len = cpu_to_le16(sizeof(struct host_cmd_tlv_akmp) -
 242                                         sizeof(struct host_cmd_tlv));
 243         tlv_akmp->key_mgmt_operation = cpu_to_le16(bss_cfg->key_mgmt_operation);
 244         tlv_akmp->key_mgmt = cpu_to_le16(bss_cfg->key_mgmt);
 245         cmd_size += sizeof(struct host_cmd_tlv_akmp);
 246         tlv += sizeof(struct host_cmd_tlv_akmp);
 247
 248         if (bss_cfg->wpa_cfg.pairwise_cipher_wpa & VALID_CIPHER_BITMAP) {
 249                 pwk_cipher = (struct host_cmd_tlv_pwk_cipher *)tlv;
 250                 pwk_cipher->tlv.type = cpu_to_le16(TLV_TYPE_PWK_CIPHER);
 251                 pwk_cipher->tlv.len =
 252                         cpu_to_le16(sizeof(struct host_cmd_tlv_pwk_cipher) -
 253                                     sizeof(struct host_cmd_tlv));
 254                 pwk_cipher->proto = cpu_to_le16(PROTOCOL_WPA);
 255                 pwk_cipher->cipher = bss_cfg->wpa_cfg.pairwise_cipher_wpa;
 256                 cmd_size += sizeof(struct host_cmd_tlv_pwk_cipher);
 257                 tlv += sizeof(struct host_cmd_tlv_pwk_cipher);
 258         }
 259
 260         if (bss_cfg->wpa_cfg.pairwise_cipher_wpa2 & VALID_CIPHER_BITMAP) {
 261                 pwk_cipher = (struct host_cmd_tlv_pwk_cipher *)tlv;
 262                 pwk_cipher->tlv.type = cpu_to_le16(TLV_TYPE_PWK_CIPHER);
 263                 pwk_cipher->tlv.len =
 264                         cpu_to_le16(sizeof(struct host_cmd_tlv_pwk_cipher) -
 265                                     sizeof(struct host_cmd_tlv));
 266                 pwk_cipher->proto = cpu_to_le16(PROTOCOL_WPA2);
 267                 pwk_cipher->cipher = bss_cfg->wpa_cfg.pairwise_cipher_wpa2;
 268                 cmd_size += sizeof(struct host_cmd_tlv_pwk_cipher);
 269                 tlv += sizeof(struct host_cmd_tlv_pwk_cipher);
 270         }
 271
 272         if (bss_cfg->wpa_cfg.group_cipher & VALID_CIPHER_BITMAP) {
 273                 gwk_cipher = (struct host_cmd_tlv_gwk_cipher *)tlv;
 274                 gwk_cipher->tlv.type = cpu_to_le16(TLV_TYPE_GWK_CIPHER);
 275                 gwk_cipher->tlv.len =
 276                         cpu_to_le16(sizeof(struct host_cmd_tlv_gwk_cipher) -
 277                                     sizeof(struct host_cmd_tlv));
 278                 gwk_cipher->cipher = bss_cfg->wpa_cfg.group_cipher;
 279                 cmd_size += sizeof(struct host_cmd_tlv_gwk_cipher);
 280                 tlv += sizeof(struct host_cmd_tlv_gwk_cipher);
 281         }
 282
 283         if (bss_cfg->wpa_cfg.length) {
 284                 passphrase = (struct host_cmd_tlv_passphrase *)tlv;
 285                 passphrase->tlv.type = cpu_to_le16(TLV_TYPE_UAP_WPA_PASSPHRASE);
 286                 passphrase->tlv.len = cpu_to_le16(bss_cfg->wpa_cfg.length);
 287                 memcpy(passphrase->passphrase, bss_cfg->wpa_cfg.passphrase,
 288                        bss_cfg->wpa_cfg.length);
 289                 cmd_size += sizeof(struct host_cmd_tlv) +
 290                             bss_cfg->wpa_cfg.length;
 291                 tlv += sizeof(struct host_cmd_tlv) + bss_cfg->wpa_cfg.length;
 292         }
 293
 294         *param_size = cmd_size;
 295         *tlv_buf = tlv;
 296
 297         return;
 298 }
 299
 300 /* This function parses BSS related parameters from structure
 301  * and prepares TLVs specific to WEP encryption.
 302  * These TLVs are appended to command buffer.
 303  */
 304 static void
 305 mwifiex_uap_bss_wep(u8 **tlv_buf, void *cmd_buf, u16 *param_size)
 306 {
 307         struct host_cmd_tlv_wep_key *wep_key;
 308         u16 cmd_size = *param_size;
 309         int i;
 310         u8 *tlv = *tlv_buf;
 311         struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
 312
 313         for (i = 0; i < NUM_WEP_KEYS; i++) {
 314                 if (bss_cfg->wep_cfg[i].length &&
 315                     (bss_cfg->wep_cfg[i].length == WLAN_KEY_LEN_WEP40 ||
 316                      bss_cfg->wep_cfg[i].length == WLAN_KEY_LEN_WEP104)) {
 317                         wep_key = (struct host_cmd_tlv_wep_key *)tlv;
 318                         wep_key->tlv.type = cpu_to_le16(TLV_TYPE_UAP_WEP_KEY);
 319                         wep_key->tlv.len =
 320                                 cpu_to_le16(bss_cfg->wep_cfg[i].length + 2);
 321                         wep_key->key_index = bss_cfg->wep_cfg[i].key_index;
 322                         wep_key->is_default = bss_cfg->wep_cfg[i].is_default;
 323                         memcpy(wep_key->key, bss_cfg->wep_cfg[i].key,
 324                                bss_cfg->wep_cfg[i].length);
 325                         cmd_size += sizeof(struct host_cmd_tlv) + 2 +
 326                                     bss_cfg->wep_cfg[i].length;
 327                         tlv += sizeof(struct host_cmd_tlv) + 2 +
 328                                     bss_cfg->wep_cfg[i].length;
 329                 }
 330         }
 331
 332         *param_size = cmd_size;
 333         *tlv_buf = tlv;
 334
 335         return;
 336 }
 337
 338 /* This function parses BSS related parameters from structure
 339  * and prepares TLVs. These TLVs are appended to command buffer.
 340 */
 341 static int
 342 mwifiex_uap_bss_param_prepare(u8 *tlv, void *cmd_buf, u16 *param_size)
 343 {
 344         struct host_cmd_tlv_dtim_period *dtim_period;
 345         struct host_cmd_tlv_beacon_period *beacon_period;
 346         struct host_cmd_tlv_ssid *ssid;
 347         struct host_cmd_tlv_bcast_ssid *bcast_ssid;
 348         struct host_cmd_tlv_channel_band *chan_band;
 349         struct host_cmd_tlv_frag_threshold *frag_threshold;
 350         struct host_cmd_tlv_rts_threshold *rts_threshold;
 351         struct host_cmd_tlv_retry_limit *retry_limit;
 352         struct host_cmd_tlv_encrypt_protocol *encrypt_protocol;
 353         struct host_cmd_tlv_auth_type *auth_type;
 354         struct host_cmd_tlv_rates *tlv_rates;
 355         struct host_cmd_tlv_ageout_timer *ao_timer, *ps_ao_timer;
 356         struct mwifiex_ie_types_htcap *htcap;
 357         struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
 358         int i;
 359         u16 cmd_size = *param_size;
 360
 361         if (bss_cfg->ssid.ssid_len) {
 362                 ssid = (struct host_cmd_tlv_ssid *)tlv;
 363                 ssid->tlv.type = cpu_to_le16(TLV_TYPE_UAP_SSID);
 364                 ssid->tlv.len = cpu_to_le16((u16)bss_cfg->ssid.ssid_len);
 365                 memcpy(ssid->ssid, bss_cfg->ssid.ssid, bss_cfg->ssid.ssid_len);
 366                 cmd_size += sizeof(struct host_cmd_tlv) +
 367                             bss_cfg->ssid.ssid_len;
 368                 tlv += sizeof(struct host_cmd_tlv) + bss_cfg->ssid.ssid_len;
 369
 370                 bcast_ssid = (struct host_cmd_tlv_bcast_ssid *)tlv;
 371                 bcast_ssid->tlv.type = cpu_to_le16(TLV_TYPE_UAP_BCAST_SSID);
 372                 bcast_ssid->tlv.len =
 373                                 cpu_to_le16(sizeof(bcast_ssid->bcast_ctl));
 374                 bcast_ssid->bcast_ctl = bss_cfg->bcast_ssid_ctl;
 375                 cmd_size += sizeof(struct host_cmd_tlv_bcast_ssid);
 376                 tlv += sizeof(struct host_cmd_tlv_bcast_ssid);
 377         }
 378         if (bss_cfg->rates[0]) {
 379                 tlv_rates = (struct host_cmd_tlv_rates *)tlv;
 380                 tlv_rates->tlv.type = cpu_to_le16(TLV_TYPE_UAP_RATES);
 381
 382                 for (i = 0; i < MWIFIEX_SUPPORTED_RATES && bss_cfg->rates[i];
 383                      i++)
 384                         tlv_rates->rates[i] = bss_cfg->rates[i];
 385
 386                 tlv_rates->tlv.len = cpu_to_le16(i);
 387                 cmd_size += sizeof(struct host_cmd_tlv_rates) + i;
 388                 tlv += sizeof(struct host_cmd_tlv_rates) + i;
 389         }
 390         if (bss_cfg->channel &&
 391             ((bss_cfg->band_cfg == BAND_CONFIG_BG &&
 392               bss_cfg->channel <= MAX_CHANNEL_BAND_BG) ||
 393             (bss_cfg->band_cfg == BAND_CONFIG_A &&
 394              bss_cfg->channel <= MAX_CHANNEL_BAND_A))) {
 395                 chan_band = (struct host_cmd_tlv_channel_band *)tlv;
 396                 chan_band->tlv.type = cpu_to_le16(TLV_TYPE_CHANNELBANDLIST);
 397                 chan_band->tlv.len =
 398                         cpu_to_le16(sizeof(struct host_cmd_tlv_channel_band) -
 399                                     sizeof(struct host_cmd_tlv));
 400                 chan_band->band_config = bss_cfg->band_cfg;
 401                 chan_band->channel = bss_cfg->channel;
 402                 cmd_size += sizeof(struct host_cmd_tlv_channel_band);
 403                 tlv += sizeof(struct host_cmd_tlv_channel_band);
 404         }
 405         if (bss_cfg->beacon_period >= MIN_BEACON_PERIOD &&
 406             bss_cfg->beacon_period <= MAX_BEACON_PERIOD) {
 407                 beacon_period = (struct host_cmd_tlv_beacon_period *)tlv;
 408                 beacon_period->tlv.type =
 409                                         cpu_to_le16(TLV_TYPE_UAP_BEACON_PERIOD);
 410                 beacon_period->tlv.len =
 411                         cpu_to_le16(sizeof(struct host_cmd_tlv_beacon_period) -
 412                                     sizeof(struct host_cmd_tlv));
 413                 beacon_period->period = cpu_to_le16(bss_cfg->beacon_period);
 414                 cmd_size += sizeof(struct host_cmd_tlv_beacon_period);
 415                 tlv += sizeof(struct host_cmd_tlv_beacon_period);
 416         }
 417         if (bss_cfg->dtim_period >= MIN_DTIM_PERIOD &&
 418             bss_cfg->dtim_period <= MAX_DTIM_PERIOD) {
 419                 dtim_period = (struct host_cmd_tlv_dtim_period *)tlv;
 420                 dtim_period->tlv.type = cpu_to_le16(TLV_TYPE_UAP_DTIM_PERIOD);
 421                 dtim_period->tlv.len =
 422                         cpu_to_le16(sizeof(struct host_cmd_tlv_dtim_period) -
 423                                     sizeof(struct host_cmd_tlv));
 424                 dtim_period->period = bss_cfg->dtim_period;
 425                 cmd_size += sizeof(struct host_cmd_tlv_dtim_period);
 426                 tlv += sizeof(struct host_cmd_tlv_dtim_period);
 427         }
 428         if (bss_cfg->rts_threshold <= MWIFIEX_RTS_MAX_VALUE) {
 429                 rts_threshold = (struct host_cmd_tlv_rts_threshold *)tlv;
 430                 rts_threshold->tlv.type =
 431                                         cpu_to_le16(TLV_TYPE_UAP_RTS_THRESHOLD);
 432                 rts_threshold->tlv.len =
 433                         cpu_to_le16(sizeof(struct host_cmd_tlv_rts_threshold) -
 434                                     sizeof(struct host_cmd_tlv));
 435                 rts_threshold->rts_thr = cpu_to_le16(bss_cfg->rts_threshold);
 436                 cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
 437                 tlv += sizeof(struct host_cmd_tlv_frag_threshold);
 438         }
 439         if ((bss_cfg->frag_threshold >= MWIFIEX_FRAG_MIN_VALUE) &&
 440             (bss_cfg->frag_threshold <= MWIFIEX_FRAG_MAX_VALUE)) {
 441                 frag_threshold = (struct host_cmd_tlv_frag_threshold *)tlv;
 442                 frag_threshold->tlv.type =
 443                                 cpu_to_le16(TLV_TYPE_UAP_FRAG_THRESHOLD);
 444                 frag_threshold->tlv.len =
 445                         cpu_to_le16(sizeof(struct host_cmd_tlv_frag_threshold) -
 446                                     sizeof(struct host_cmd_tlv));
 447                 frag_threshold->frag_thr = cpu_to_le16(bss_cfg->frag_threshold);
 448                 cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
 449                 tlv += sizeof(struct host_cmd_tlv_frag_threshold);
 450         }
 451         if (bss_cfg->retry_limit <= MWIFIEX_RETRY_LIMIT) {
 452                 retry_limit = (struct host_cmd_tlv_retry_limit *)tlv;
 453                 retry_limit->tlv.type = cpu_to_le16(TLV_TYPE_UAP_RETRY_LIMIT);
 454                 retry_limit->tlv.len =
 455                         cpu_to_le16(sizeof(struct host_cmd_tlv_retry_limit) -
 456                                     sizeof(struct host_cmd_tlv));
 457                 retry_limit->limit = (u8)bss_cfg->retry_limit;
 458                 cmd_size += sizeof(struct host_cmd_tlv_retry_limit);
 459                 tlv += sizeof(struct host_cmd_tlv_retry_limit);
 460         }
 461         if ((bss_cfg->protocol & PROTOCOL_WPA) ||
 462             (bss_cfg->protocol & PROTOCOL_WPA2) ||
 463             (bss_cfg->protocol & PROTOCOL_EAP))
 464                 mwifiex_uap_bss_wpa(&tlv, cmd_buf, &cmd_size);
 465         else
 466                 mwifiex_uap_bss_wep(&tlv, cmd_buf, &cmd_size);
 467
 468         if ((bss_cfg->auth_mode <= WLAN_AUTH_SHARED_KEY) ||
 469             (bss_cfg->auth_mode == MWIFIEX_AUTH_MODE_AUTO)) {
 470                 auth_type = (struct host_cmd_tlv_auth_type *)tlv;
 471                 auth_type->tlv.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
 472                 auth_type->tlv.len =
 473                         cpu_to_le16(sizeof(struct host_cmd_tlv_auth_type) -
 474                         sizeof(struct host_cmd_tlv));
 475                 auth_type->auth_type = (u8)bss_cfg->auth_mode;
 476                 cmd_size += sizeof(struct host_cmd_tlv_auth_type);
 477                 tlv += sizeof(struct host_cmd_tlv_auth_type);
 478         }
 479         if (bss_cfg->protocol) {
 480                 encrypt_protocol = (struct host_cmd_tlv_encrypt_protocol *)tlv;
 481                 encrypt_protocol->tlv.type =
 482                         cpu_to_le16(TLV_TYPE_UAP_ENCRY_PROTOCOL);
 483                 encrypt_protocol->tlv.len =
 484                         cpu_to_le16(sizeof(struct host_cmd_tlv_encrypt_protocol)
 485                         - sizeof(struct host_cmd_tlv));
 486                 encrypt_protocol->proto = cpu_to_le16(bss_cfg->protocol);
 487                 cmd_size += sizeof(struct host_cmd_tlv_encrypt_protocol);
 488                 tlv += sizeof(struct host_cmd_tlv_encrypt_protocol);
 489         }
 490
 491         if (bss_cfg->ht_cap.cap_info) {
 492                 htcap = (struct mwifiex_ie_types_htcap *)tlv;
 493                 htcap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
 494                 htcap->header.len =
 495                                 cpu_to_le16(sizeof(struct ieee80211_ht_cap));
 496                 htcap->ht_cap.cap_info = bss_cfg->ht_cap.cap_info;
 497                 htcap->ht_cap.ampdu_params_info =
 498                                              bss_cfg->ht_cap.ampdu_params_info;
 499                 memcpy(&htcap->ht_cap.mcs, &bss_cfg->ht_cap.mcs,
 500                        sizeof(struct ieee80211_mcs_info));
 501                 htcap->ht_cap.extended_ht_cap_info =
 502                                         bss_cfg->ht_cap.extended_ht_cap_info;
 503                 htcap->ht_cap.tx_BF_cap_info = bss_cfg->ht_cap.tx_BF_cap_info;
 504                 htcap->ht_cap.antenna_selection_info =
 505                                         bss_cfg->ht_cap.antenna_selection_info;
 506                 cmd_size += sizeof(struct mwifiex_ie_types_htcap);
 507                 tlv += sizeof(struct mwifiex_ie_types_htcap);
 508         }
 509
 510         if (bss_cfg->sta_ao_timer) {
 511                 ao_timer = (struct host_cmd_tlv_ageout_timer *)tlv;
 512                 ao_timer->tlv.type = cpu_to_le16(TLV_TYPE_UAP_AO_TIMER);
 513                 ao_timer->tlv.len = cpu_to_le16(sizeof(*ao_timer) -
 514                                                 sizeof(struct host_cmd_tlv));
 515                 ao_timer->sta_ao_timer = cpu_to_le32(bss_cfg->sta_ao_timer);
 516                 cmd_size += sizeof(*ao_timer);
 517                 tlv += sizeof(*ao_timer);
 518         }
 519
 520         if (bss_cfg->ps_sta_ao_timer) {
 521                 ps_ao_timer = (struct host_cmd_tlv_ageout_timer *)tlv;
 522                 ps_ao_timer->tlv.type = cpu_to_le16(TLV_TYPE_UAP_PS_AO_TIMER);
 523                 ps_ao_timer->tlv.len = cpu_to_le16(sizeof(*ps_ao_timer) -
 524                                                    sizeof(struct host_cmd_tlv));
 525                 ps_ao_timer->sta_ao_timer =
 526                                         cpu_to_le32(bss_cfg->ps_sta_ao_timer);
 527                 cmd_size += sizeof(*ps_ao_timer);
 528                 tlv += sizeof(*ps_ao_timer);
 529         }
 530
 531         *param_size = cmd_size;
 532
 533         return 0;
 534 }
 535
 536 /* This function parses custom IEs from IE list and prepares command buffer */
 537 static int mwifiex_uap_custom_ie_prepare(u8 *tlv, void *cmd_buf, u16 *ie_size)
 538 {
 539         struct mwifiex_ie_list *ap_ie = cmd_buf;
 540         struct host_cmd_tlv *tlv_ie = (struct host_cmd_tlv *)tlv;
 541
 542         if (!ap_ie || !ap_ie->len || !ap_ie->ie_list)
 543                 return -1;
 544
 545         *ie_size += le16_to_cpu(ap_ie->len) + sizeof(struct host_cmd_tlv);
 546
 547         tlv_ie->type = cpu_to_le16(TLV_TYPE_MGMT_IE);
 548         tlv_ie->len = ap_ie->len;
 549         tlv += sizeof(struct host_cmd_tlv);
 550
 551         memcpy(tlv, ap_ie->ie_list, le16_to_cpu(ap_ie->len));
 552
 553         return 0;
 554 }
 555
 556 /* Parse AP config structure and prepare TLV based command structure
 557  * to be sent to FW for uAP configuration
 558  */
 559 static int
 560 mwifiex_cmd_uap_sys_config(struct host_cmd_ds_command *cmd, u16 cmd_action,
 561                            u32 type, void *cmd_buf)
 562 {
 563         u8 *tlv;
 564         u16 cmd_size, param_size, ie_size;
 565         struct host_cmd_ds_sys_config *sys_cfg;
 566
 567         cmd->command = cpu_to_le16(HostCmd_CMD_UAP_SYS_CONFIG);
 568         cmd_size = (u16)(sizeof(struct host_cmd_ds_sys_config) + S_DS_GEN);
 569         sys_cfg = (struct host_cmd_ds_sys_config *)&cmd->params.uap_sys_config;
 570         sys_cfg->action = cpu_to_le16(cmd_action);
 571         tlv = sys_cfg->tlv;
 572
 573         switch (type) {
 574         case UAP_BSS_PARAMS_I:
 575                 param_size = cmd_size;
 576                 if (mwifiex_uap_bss_param_prepare(tlv, cmd_buf, &param_size))
 577                         return -1;
 578                 cmd->size = cpu_to_le16(param_size);
 579                 break;
 580         case UAP_CUSTOM_IE_I:
 581                 ie_size = cmd_size;
 582                 if (mwifiex_uap_custom_ie_prepare(tlv, cmd_buf, &ie_size))
 583                         return -1;
 584                 cmd->size = cpu_to_le16(ie_size);
 585                 break;
 586         default:
 587                 return -1;
 588         }
 589
 590         return 0;
 591 }
 592
 593 /* This function prepares the AP specific commands before sending them
 594  * to the firmware.
 595  * This is a generic function which calls specific command preparation
 596  * routines based upon the command number.
 597  */
 598 int mwifiex_uap_prepare_cmd(struct mwifiex_private *priv, u16 cmd_no,
 599                             u16 cmd_action, u32 type,
 600                             void *data_buf, void *cmd_buf)
 601 {
 602         struct host_cmd_ds_command *cmd = cmd_buf;
 603
 604         switch (cmd_no) {
 605         case HostCmd_CMD_UAP_SYS_CONFIG:
 606                 if (mwifiex_cmd_uap_sys_config(cmd, cmd_action, type, data_buf))
 607                         return -1;
 608                 break;
 609         case HostCmd_CMD_UAP_BSS_START:
 610         case HostCmd_CMD_UAP_BSS_STOP:
 611                 cmd->command = cpu_to_le16(cmd_no);
 612                 cmd->size = cpu_to_le16(S_DS_GEN);
 613                 break;
 614         default:
 615                 dev_err(priv->adapter->dev,
 616                         "PREP_CMD: unknown cmd %#x\n", cmd_no);
 617                 return -1;
 618         }
 619
 620         return 0;
 621 }