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         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 + 2,
 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                         memset(&bss_cfg->ht_cap.mcs, 0xff, 1);
 179                         break;
 180                 case MWIFIEX_RX_STBC12: /* fall through */
 181                 case MWIFIEX_RX_STBC123:
 182                         /* HT_CAP 2X2 mode */
 183                         memset(&bss_cfg->ht_cap.mcs, 0xff, 2);
 184                         break;
 185                 default:
 186                         dev_warn(priv->adapter->dev,
 187                                  "Unsupported RX-STBC, default to 2x2\n");
 188                         memset(&bss_cfg->ht_cap.mcs, 0xff, 2);
 189                         break;
 190                 }
 191                 priv->ap_11n_enabled = 1;
 192         } else {
 193                 memset(&bss_cfg->ht_cap , 0, sizeof(struct ieee80211_ht_cap));
 194                 bss_cfg->ht_cap.cap_info = cpu_to_le16(MWIFIEX_DEF_HT_CAP);
 195                 bss_cfg->ht_cap.ampdu_params_info = MWIFIEX_DEF_AMPDU;
 196         }
 197
 198         return;
 199 }
 200
 201 /* This function updates 11ac related parameters from IE
 202  * and sets them into bss_config structure.
 203  */
 204 void mwifiex_set_vht_params(struct mwifiex_private *priv,
 205                             struct mwifiex_uap_bss_param *bss_cfg,
 206                             struct cfg80211_ap_settings *params)
 207 {
 208         const u8 *vht_ie;
 209
 210         vht_ie = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, params->beacon.tail,
 211                                   params->beacon.tail_len);
 212         if (vht_ie) {
 213                 memcpy(&bss_cfg->vht_cap, vht_ie + 2,
 214                        sizeof(struct ieee80211_vht_cap));
 215                 priv->ap_11ac_enabled = 1;
 216         } else {
 217                 priv->ap_11ac_enabled = 0;
 218         }
 219
 220         return;
 221 }
 222
 223 /* Enable VHT only when cfg80211_ap_settings has VHT IE.
 224  * Otherwise disable VHT.
 225  */
 226 void mwifiex_set_vht_width(struct mwifiex_private *priv,
 227                            enum nl80211_chan_width width,
 228                            bool ap_11ac_enable)
 229 {
 230         struct mwifiex_adapter *adapter = priv->adapter;
 231         struct mwifiex_11ac_vht_cfg vht_cfg;
 232
 233         vht_cfg.band_config = VHT_CFG_5GHZ;
 234         vht_cfg.cap_info = adapter->hw_dot_11ac_dev_cap;
 235
 236         if (!ap_11ac_enable) {
 237                 vht_cfg.mcs_tx_set = DISABLE_VHT_MCS_SET;
 238                 vht_cfg.mcs_rx_set = DISABLE_VHT_MCS_SET;
 239         } else {
 240                 vht_cfg.mcs_tx_set = DEFAULT_VHT_MCS_SET;
 241                 vht_cfg.mcs_rx_set = DEFAULT_VHT_MCS_SET;
 242         }
 243
 244         vht_cfg.misc_config  = VHT_CAP_UAP_ONLY;
 245
 246         if (ap_11ac_enable && width >= NL80211_CHAN_WIDTH_80)
 247                 vht_cfg.misc_config |= VHT_BW_80_160_80P80;
 248
 249         mwifiex_send_cmd(priv, HostCmd_CMD_11AC_CFG,
 250                          HostCmd_ACT_GEN_SET, 0, &vht_cfg, true);
 251
 252         return;
 253 }
 254
 255 /* This function finds supported rates IE from beacon parameter and sets
 256  * these rates into bss_config structure.
 257  */
 258 void
 259 mwifiex_set_uap_rates(struct mwifiex_uap_bss_param *bss_cfg,
 260                       struct cfg80211_ap_settings *params)
 261 {
 262         struct ieee_types_header *rate_ie;
 263         int var_offset = offsetof(struct ieee80211_mgmt, u.beacon.variable);
 264         const u8 *var_pos = params->beacon.head + var_offset;
 265         int len = params->beacon.head_len - var_offset;
 266         u8 rate_len = 0;
 267
 268         rate_ie = (void *)cfg80211_find_ie(WLAN_EID_SUPP_RATES, var_pos, len);
 269         if (rate_ie) {
 270                 memcpy(bss_cfg->rates, rate_ie + 1, rate_ie->len);
 271                 rate_len = rate_ie->len;
 272         }
 273
 274         rate_ie = (void *)cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES,
 275                                            params->beacon.tail,
 276                                            params->beacon.tail_len);
 277         if (rate_ie)
 278                 memcpy(bss_cfg->rates + rate_len, rate_ie + 1, rate_ie->len);
 279
 280         return;
 281 }
 282
 283 /* This function initializes some of mwifiex_uap_bss_param variables.
 284  * This helps FW in ignoring invalid values. These values may or may not
 285  * be get updated to valid ones at later stage.
 286  */
 287 void mwifiex_set_sys_config_invalid_data(struct mwifiex_uap_bss_param *config)
 288 {
 289         config->bcast_ssid_ctl = 0x7F;
 290         config->radio_ctl = 0x7F;
 291         config->dtim_period = 0x7F;
 292         config->beacon_period = 0x7FFF;
 293         config->auth_mode = 0x7F;
 294         config->rts_threshold = 0x7FFF;
 295         config->frag_threshold = 0x7FFF;
 296         config->retry_limit = 0x7F;
 297         config->qos_info = 0xFF;
 298 }
 299
 300 /* This function parses BSS related parameters from structure
 301  * and prepares TLVs specific to WPA/WPA2 security.
 302  * These TLVs are appended to command buffer.
 303  */
 304 static void
 305 mwifiex_uap_bss_wpa(u8 **tlv_buf, void *cmd_buf, u16 *param_size)
 306 {
 307         struct host_cmd_tlv_pwk_cipher *pwk_cipher;
 308         struct host_cmd_tlv_gwk_cipher *gwk_cipher;
 309         struct host_cmd_tlv_passphrase *passphrase;
 310         struct host_cmd_tlv_akmp *tlv_akmp;
 311         struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
 312         u16 cmd_size = *param_size;
 313         u8 *tlv = *tlv_buf;
 314
 315         tlv_akmp = (struct host_cmd_tlv_akmp *)tlv;
 316         tlv_akmp->header.type = cpu_to_le16(TLV_TYPE_UAP_AKMP);
 317         tlv_akmp->header.len = cpu_to_le16(sizeof(struct host_cmd_tlv_akmp) -
 318                                         sizeof(struct mwifiex_ie_types_header));
 319         tlv_akmp->key_mgmt_operation = cpu_to_le16(bss_cfg->key_mgmt_operation);
 320         tlv_akmp->key_mgmt = cpu_to_le16(bss_cfg->key_mgmt);
 321         cmd_size += sizeof(struct host_cmd_tlv_akmp);
 322         tlv += sizeof(struct host_cmd_tlv_akmp);
 323
 324         if (bss_cfg->wpa_cfg.pairwise_cipher_wpa & VALID_CIPHER_BITMAP) {
 325                 pwk_cipher = (struct host_cmd_tlv_pwk_cipher *)tlv;
 326                 pwk_cipher->header.type = cpu_to_le16(TLV_TYPE_PWK_CIPHER);
 327                 pwk_cipher->header.len =
 328                         cpu_to_le16(sizeof(struct host_cmd_tlv_pwk_cipher) -
 329                                     sizeof(struct mwifiex_ie_types_header));
 330                 pwk_cipher->proto = cpu_to_le16(PROTOCOL_WPA);
 331                 pwk_cipher->cipher = bss_cfg->wpa_cfg.pairwise_cipher_wpa;
 332                 cmd_size += sizeof(struct host_cmd_tlv_pwk_cipher);
 333                 tlv += sizeof(struct host_cmd_tlv_pwk_cipher);
 334         }
 335
 336         if (bss_cfg->wpa_cfg.pairwise_cipher_wpa2 & VALID_CIPHER_BITMAP) {
 337                 pwk_cipher = (struct host_cmd_tlv_pwk_cipher *)tlv;
 338                 pwk_cipher->header.type = cpu_to_le16(TLV_TYPE_PWK_CIPHER);
 339                 pwk_cipher->header.len =
 340                         cpu_to_le16(sizeof(struct host_cmd_tlv_pwk_cipher) -
 341                                     sizeof(struct mwifiex_ie_types_header));
 342                 pwk_cipher->proto = cpu_to_le16(PROTOCOL_WPA2);
 343                 pwk_cipher->cipher = bss_cfg->wpa_cfg.pairwise_cipher_wpa2;
 344                 cmd_size += sizeof(struct host_cmd_tlv_pwk_cipher);
 345                 tlv += sizeof(struct host_cmd_tlv_pwk_cipher);
 346         }
 347
 348         if (bss_cfg->wpa_cfg.group_cipher & VALID_CIPHER_BITMAP) {
 349                 gwk_cipher = (struct host_cmd_tlv_gwk_cipher *)tlv;
 350                 gwk_cipher->header.type = cpu_to_le16(TLV_TYPE_GWK_CIPHER);
 351                 gwk_cipher->header.len =
 352                         cpu_to_le16(sizeof(struct host_cmd_tlv_gwk_cipher) -
 353                                     sizeof(struct mwifiex_ie_types_header));
 354                 gwk_cipher->cipher = bss_cfg->wpa_cfg.group_cipher;
 355                 cmd_size += sizeof(struct host_cmd_tlv_gwk_cipher);
 356                 tlv += sizeof(struct host_cmd_tlv_gwk_cipher);
 357         }
 358
 359         if (bss_cfg->wpa_cfg.length) {
 360                 passphrase = (struct host_cmd_tlv_passphrase *)tlv;
 361                 passphrase->header.type =
 362                                 cpu_to_le16(TLV_TYPE_UAP_WPA_PASSPHRASE);
 363                 passphrase->header.len = cpu_to_le16(bss_cfg->wpa_cfg.length);
 364                 memcpy(passphrase->passphrase, bss_cfg->wpa_cfg.passphrase,
 365                        bss_cfg->wpa_cfg.length);
 366                 cmd_size += sizeof(struct mwifiex_ie_types_header) +
 367                             bss_cfg->wpa_cfg.length;
 368                 tlv += sizeof(struct mwifiex_ie_types_header) +
 369                                 bss_cfg->wpa_cfg.length;
 370         }
 371
 372         *param_size = cmd_size;
 373         *tlv_buf = tlv;
 374
 375         return;
 376 }
 377
 378 /* This function parses WMM related parameters from cfg80211_ap_settings
 379  * structure and updates bss_config structure.
 380  */
 381 void
 382 mwifiex_set_wmm_params(struct mwifiex_private *priv,
 383                        struct mwifiex_uap_bss_param *bss_cfg,
 384                        struct cfg80211_ap_settings *params)
 385 {
 386         const u8 *vendor_ie;
 387         struct ieee_types_header *wmm_ie;
 388         u8 wmm_oui[] = {0x00, 0x50, 0xf2, 0x02};
 389
 390         vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
 391                                             WLAN_OUI_TYPE_MICROSOFT_WMM,
 392                                             params->beacon.tail,
 393                                             params->beacon.tail_len);
 394         if (vendor_ie) {
 395                 wmm_ie = (struct ieee_types_header *)vendor_ie;
 396                 memcpy(&bss_cfg->wmm_info, wmm_ie + 1,
 397                        sizeof(bss_cfg->wmm_info));
 398                 priv->wmm_enabled = 1;
 399         } else {
 400                 memset(&bss_cfg->wmm_info, 0, sizeof(bss_cfg->wmm_info));
 401                 memcpy(&bss_cfg->wmm_info.oui, wmm_oui, sizeof(wmm_oui));
 402                 bss_cfg->wmm_info.subtype = MWIFIEX_WMM_SUBTYPE;
 403                 bss_cfg->wmm_info.version = MWIFIEX_WMM_VERSION;
 404                 priv->wmm_enabled = 0;
 405         }
 406
 407         bss_cfg->qos_info = 0x00;
 408         return;
 409 }
 410 /* This function parses BSS related parameters from structure
 411  * and prepares TLVs specific to WEP encryption.
 412  * These TLVs are appended to command buffer.
 413  */
 414 static void
 415 mwifiex_uap_bss_wep(u8 **tlv_buf, void *cmd_buf, u16 *param_size)
 416 {
 417         struct host_cmd_tlv_wep_key *wep_key;
 418         u16 cmd_size = *param_size;
 419         int i;
 420         u8 *tlv = *tlv_buf;
 421         struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
 422
 423         for (i = 0; i < NUM_WEP_KEYS; i++) {
 424                 if (bss_cfg->wep_cfg[i].length &&
 425                     (bss_cfg->wep_cfg[i].length == WLAN_KEY_LEN_WEP40 ||
 426                      bss_cfg->wep_cfg[i].length == WLAN_KEY_LEN_WEP104)) {
 427                         wep_key = (struct host_cmd_tlv_wep_key *)tlv;
 428                         wep_key->header.type =
 429                                 cpu_to_le16(TLV_TYPE_UAP_WEP_KEY);
 430                         wep_key->header.len =
 431                                 cpu_to_le16(bss_cfg->wep_cfg[i].length + 2);
 432                         wep_key->key_index = bss_cfg->wep_cfg[i].key_index;
 433                         wep_key->is_default = bss_cfg->wep_cfg[i].is_default;
 434                         memcpy(wep_key->key, bss_cfg->wep_cfg[i].key,
 435                                bss_cfg->wep_cfg[i].length);
 436                         cmd_size += sizeof(struct mwifiex_ie_types_header) + 2 +
 437                                     bss_cfg->wep_cfg[i].length;
 438                         tlv += sizeof(struct mwifiex_ie_types_header) + 2 +
 439                                     bss_cfg->wep_cfg[i].length;
 440                 }
 441         }
 442
 443         *param_size = cmd_size;
 444         *tlv_buf = tlv;
 445
 446         return;
 447 }
 448
 449 /* This function parses BSS related parameters from structure
 450  * and prepares TLVs. These TLVs are appended to command buffer.
 451 */
 452 static int
 453 mwifiex_uap_bss_param_prepare(u8 *tlv, void *cmd_buf, u16 *param_size)
 454 {
 455         struct host_cmd_tlv_dtim_period *dtim_period;
 456         struct host_cmd_tlv_beacon_period *beacon_period;
 457         struct host_cmd_tlv_ssid *ssid;
 458         struct host_cmd_tlv_bcast_ssid *bcast_ssid;
 459         struct host_cmd_tlv_channel_band *chan_band;
 460         struct host_cmd_tlv_frag_threshold *frag_threshold;
 461         struct host_cmd_tlv_rts_threshold *rts_threshold;
 462         struct host_cmd_tlv_retry_limit *retry_limit;
 463         struct host_cmd_tlv_encrypt_protocol *encrypt_protocol;
 464         struct host_cmd_tlv_auth_type *auth_type;
 465         struct host_cmd_tlv_rates *tlv_rates;
 466         struct host_cmd_tlv_ageout_timer *ao_timer, *ps_ao_timer;
 467         struct mwifiex_ie_types_htcap *htcap;
 468         struct mwifiex_ie_types_wmmcap *wmm_cap;
 469         struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
 470         int i;
 471         u16 cmd_size = *param_size;
 472
 473         if (bss_cfg->ssid.ssid_len) {
 474                 ssid = (struct host_cmd_tlv_ssid *)tlv;
 475                 ssid->header.type = cpu_to_le16(TLV_TYPE_UAP_SSID);
 476                 ssid->header.len = cpu_to_le16((u16)bss_cfg->ssid.ssid_len);
 477                 memcpy(ssid->ssid, bss_cfg->ssid.ssid, bss_cfg->ssid.ssid_len);
 478                 cmd_size += sizeof(struct mwifiex_ie_types_header) +
 479                             bss_cfg->ssid.ssid_len;
 480                 tlv += sizeof(struct mwifiex_ie_types_header) +
 481                                 bss_cfg->ssid.ssid_len;
 482
 483                 bcast_ssid = (struct host_cmd_tlv_bcast_ssid *)tlv;
 484                 bcast_ssid->header.type = cpu_to_le16(TLV_TYPE_UAP_BCAST_SSID);
 485                 bcast_ssid->header.len =
 486                                 cpu_to_le16(sizeof(bcast_ssid->bcast_ctl));
 487                 bcast_ssid->bcast_ctl = bss_cfg->bcast_ssid_ctl;
 488                 cmd_size += sizeof(struct host_cmd_tlv_bcast_ssid);
 489                 tlv += sizeof(struct host_cmd_tlv_bcast_ssid);
 490         }
 491         if (bss_cfg->rates[0]) {
 492                 tlv_rates = (struct host_cmd_tlv_rates *)tlv;
 493                 tlv_rates->header.type = cpu_to_le16(TLV_TYPE_UAP_RATES);
 494
 495                 for (i = 0; i < MWIFIEX_SUPPORTED_RATES && bss_cfg->rates[i];
 496                      i++)
 497                         tlv_rates->rates[i] = bss_cfg->rates[i];
 498
 499                 tlv_rates->header.len = cpu_to_le16(i);
 500                 cmd_size += sizeof(struct host_cmd_tlv_rates) + i;
 501                 tlv += sizeof(struct host_cmd_tlv_rates) + i;
 502         }
 503         if (bss_cfg->channel &&
 504             ((bss_cfg->band_cfg == BAND_CONFIG_BG &&
 505               bss_cfg->channel <= MAX_CHANNEL_BAND_BG) ||
 506             (bss_cfg->band_cfg == BAND_CONFIG_A &&
 507              bss_cfg->channel <= MAX_CHANNEL_BAND_A))) {
 508                 chan_band = (struct host_cmd_tlv_channel_band *)tlv;
 509                 chan_band->header.type = cpu_to_le16(TLV_TYPE_CHANNELBANDLIST);
 510                 chan_band->header.len =
 511                         cpu_to_le16(sizeof(struct host_cmd_tlv_channel_band) -
 512                                     sizeof(struct mwifiex_ie_types_header));
 513                 chan_band->band_config = bss_cfg->band_cfg;
 514                 chan_band->channel = bss_cfg->channel;
 515                 cmd_size += sizeof(struct host_cmd_tlv_channel_band);
 516                 tlv += sizeof(struct host_cmd_tlv_channel_band);
 517         }
 518         if (bss_cfg->beacon_period >= MIN_BEACON_PERIOD &&
 519             bss_cfg->beacon_period <= MAX_BEACON_PERIOD) {
 520                 beacon_period = (struct host_cmd_tlv_beacon_period *)tlv;
 521                 beacon_period->header.type =
 522                                         cpu_to_le16(TLV_TYPE_UAP_BEACON_PERIOD);
 523                 beacon_period->header.len =
 524                         cpu_to_le16(sizeof(struct host_cmd_tlv_beacon_period) -
 525                                     sizeof(struct mwifiex_ie_types_header));
 526                 beacon_period->period = cpu_to_le16(bss_cfg->beacon_period);
 527                 cmd_size += sizeof(struct host_cmd_tlv_beacon_period);
 528                 tlv += sizeof(struct host_cmd_tlv_beacon_period);
 529         }
 530         if (bss_cfg->dtim_period >= MIN_DTIM_PERIOD &&
 531             bss_cfg->dtim_period <= MAX_DTIM_PERIOD) {
 532                 dtim_period = (struct host_cmd_tlv_dtim_period *)tlv;
 533                 dtim_period->header.type =
 534                         cpu_to_le16(TLV_TYPE_UAP_DTIM_PERIOD);
 535                 dtim_period->header.len =
 536                         cpu_to_le16(sizeof(struct host_cmd_tlv_dtim_period) -
 537                                     sizeof(struct mwifiex_ie_types_header));
 538                 dtim_period->period = bss_cfg->dtim_period;
 539                 cmd_size += sizeof(struct host_cmd_tlv_dtim_period);
 540                 tlv += sizeof(struct host_cmd_tlv_dtim_period);
 541         }
 542         if (bss_cfg->rts_threshold <= MWIFIEX_RTS_MAX_VALUE) {
 543                 rts_threshold = (struct host_cmd_tlv_rts_threshold *)tlv;
 544                 rts_threshold->header.type =
 545                                         cpu_to_le16(TLV_TYPE_UAP_RTS_THRESHOLD);
 546                 rts_threshold->header.len =
 547                         cpu_to_le16(sizeof(struct host_cmd_tlv_rts_threshold) -
 548                                     sizeof(struct mwifiex_ie_types_header));
 549                 rts_threshold->rts_thr = cpu_to_le16(bss_cfg->rts_threshold);
 550                 cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
 551                 tlv += sizeof(struct host_cmd_tlv_frag_threshold);
 552         }
 553         if ((bss_cfg->frag_threshold >= MWIFIEX_FRAG_MIN_VALUE) &&
 554             (bss_cfg->frag_threshold <= MWIFIEX_FRAG_MAX_VALUE)) {
 555                 frag_threshold = (struct host_cmd_tlv_frag_threshold *)tlv;
 556                 frag_threshold->header.type =
 557                                 cpu_to_le16(TLV_TYPE_UAP_FRAG_THRESHOLD);
 558                 frag_threshold->header.len =
 559                         cpu_to_le16(sizeof(struct host_cmd_tlv_frag_threshold) -
 560                                     sizeof(struct mwifiex_ie_types_header));
 561                 frag_threshold->frag_thr = cpu_to_le16(bss_cfg->frag_threshold);
 562                 cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
 563                 tlv += sizeof(struct host_cmd_tlv_frag_threshold);
 564         }
 565         if (bss_cfg->retry_limit <= MWIFIEX_RETRY_LIMIT) {
 566                 retry_limit = (struct host_cmd_tlv_retry_limit *)tlv;
 567                 retry_limit->header.type =
 568                         cpu_to_le16(TLV_TYPE_UAP_RETRY_LIMIT);
 569                 retry_limit->header.len =
 570                         cpu_to_le16(sizeof(struct host_cmd_tlv_retry_limit) -
 571                                     sizeof(struct mwifiex_ie_types_header));
 572                 retry_limit->limit = (u8)bss_cfg->retry_limit;
 573                 cmd_size += sizeof(struct host_cmd_tlv_retry_limit);
 574                 tlv += sizeof(struct host_cmd_tlv_retry_limit);
 575         }
 576         if ((bss_cfg->protocol & PROTOCOL_WPA) ||
 577             (bss_cfg->protocol & PROTOCOL_WPA2) ||
 578             (bss_cfg->protocol & PROTOCOL_EAP))
 579                 mwifiex_uap_bss_wpa(&tlv, cmd_buf, &cmd_size);
 580         else
 581                 mwifiex_uap_bss_wep(&tlv, cmd_buf, &cmd_size);
 582
 583         if ((bss_cfg->auth_mode <= WLAN_AUTH_SHARED_KEY) ||
 584             (bss_cfg->auth_mode == MWIFIEX_AUTH_MODE_AUTO)) {
 585                 auth_type = (struct host_cmd_tlv_auth_type *)tlv;
 586                 auth_type->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
 587                 auth_type->header.len =
 588                         cpu_to_le16(sizeof(struct host_cmd_tlv_auth_type) -
 589                         sizeof(struct mwifiex_ie_types_header));
 590                 auth_type->auth_type = (u8)bss_cfg->auth_mode;
 591                 cmd_size += sizeof(struct host_cmd_tlv_auth_type);
 592                 tlv += sizeof(struct host_cmd_tlv_auth_type);
 593         }
 594         if (bss_cfg->protocol) {
 595                 encrypt_protocol = (struct host_cmd_tlv_encrypt_protocol *)tlv;
 596                 encrypt_protocol->header.type =
 597                         cpu_to_le16(TLV_TYPE_UAP_ENCRY_PROTOCOL);
 598                 encrypt_protocol->header.len =
 599                         cpu_to_le16(sizeof(struct host_cmd_tlv_encrypt_protocol)
 600                         - sizeof(struct mwifiex_ie_types_header));
 601                 encrypt_protocol->proto = cpu_to_le16(bss_cfg->protocol);
 602                 cmd_size += sizeof(struct host_cmd_tlv_encrypt_protocol);
 603                 tlv += sizeof(struct host_cmd_tlv_encrypt_protocol);
 604         }
 605
 606         if (bss_cfg->ht_cap.cap_info) {
 607                 htcap = (struct mwifiex_ie_types_htcap *)tlv;
 608                 htcap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
 609                 htcap->header.len =
 610                                 cpu_to_le16(sizeof(struct ieee80211_ht_cap));
 611                 htcap->ht_cap.cap_info = bss_cfg->ht_cap.cap_info;
 612                 htcap->ht_cap.ampdu_params_info =
 613                                              bss_cfg->ht_cap.ampdu_params_info;
 614                 memcpy(&htcap->ht_cap.mcs, &bss_cfg->ht_cap.mcs,
 615                        sizeof(struct ieee80211_mcs_info));
 616                 htcap->ht_cap.extended_ht_cap_info =
 617                                         bss_cfg->ht_cap.extended_ht_cap_info;
 618                 htcap->ht_cap.tx_BF_cap_info = bss_cfg->ht_cap.tx_BF_cap_info;
 619                 htcap->ht_cap.antenna_selection_info =
 620                                         bss_cfg->ht_cap.antenna_selection_info;
 621                 cmd_size += sizeof(struct mwifiex_ie_types_htcap);
 622                 tlv += sizeof(struct mwifiex_ie_types_htcap);
 623         }
 624
 625         if (bss_cfg->wmm_info.qos_info != 0xFF) {
 626                 wmm_cap = (struct mwifiex_ie_types_wmmcap *)tlv;
 627                 wmm_cap->header.type = cpu_to_le16(WLAN_EID_VENDOR_SPECIFIC);
 628                 wmm_cap->header.len = cpu_to_le16(sizeof(wmm_cap->wmm_info));
 629                 memcpy(&wmm_cap->wmm_info, &bss_cfg->wmm_info,
 630                        sizeof(wmm_cap->wmm_info));
 631                 cmd_size += sizeof(struct mwifiex_ie_types_wmmcap);
 632                 tlv += sizeof(struct mwifiex_ie_types_wmmcap);
 633         }
 634
 635         if (bss_cfg->sta_ao_timer) {
 636                 ao_timer = (struct host_cmd_tlv_ageout_timer *)tlv;
 637                 ao_timer->header.type = cpu_to_le16(TLV_TYPE_UAP_AO_TIMER);
 638                 ao_timer->header.len = cpu_to_le16(sizeof(*ao_timer) -
 639                                         sizeof(struct mwifiex_ie_types_header));
 640                 ao_timer->sta_ao_timer = cpu_to_le32(bss_cfg->sta_ao_timer);
 641                 cmd_size += sizeof(*ao_timer);
 642                 tlv += sizeof(*ao_timer);
 643         }
 644
 645         if (bss_cfg->ps_sta_ao_timer) {
 646                 ps_ao_timer = (struct host_cmd_tlv_ageout_timer *)tlv;
 647                 ps_ao_timer->header.type =
 648                                 cpu_to_le16(TLV_TYPE_UAP_PS_AO_TIMER);
 649                 ps_ao_timer->header.len = cpu_to_le16(sizeof(*ps_ao_timer) -
 650                                 sizeof(struct mwifiex_ie_types_header));
 651                 ps_ao_timer->sta_ao_timer =
 652                                         cpu_to_le32(bss_cfg->ps_sta_ao_timer);
 653                 cmd_size += sizeof(*ps_ao_timer);
 654                 tlv += sizeof(*ps_ao_timer);
 655         }
 656
 657         *param_size = cmd_size;
 658
 659         return 0;
 660 }
 661
 662 /* This function parses custom IEs from IE list and prepares command buffer */
 663 static int mwifiex_uap_custom_ie_prepare(u8 *tlv, void *cmd_buf, u16 *ie_size)
 664 {
 665         struct mwifiex_ie_list *ap_ie = cmd_buf;
 666         struct mwifiex_ie_types_header *tlv_ie = (void *)tlv;
 667
 668         if (!ap_ie || !ap_ie->len || !ap_ie->ie_list)
 669                 return -1;
 670
 671         *ie_size += le16_to_cpu(ap_ie->len) +
 672                         sizeof(struct mwifiex_ie_types_header);
 673
 674         tlv_ie->type = cpu_to_le16(TLV_TYPE_MGMT_IE);
 675         tlv_ie->len = ap_ie->len;
 676         tlv += sizeof(struct mwifiex_ie_types_header);
 677
 678         memcpy(tlv, ap_ie->ie_list, le16_to_cpu(ap_ie->len));
 679
 680         return 0;
 681 }
 682
 683 /* Parse AP config structure and prepare TLV based command structure
 684  * to be sent to FW for uAP configuration
 685  */
 686 static int
 687 mwifiex_cmd_uap_sys_config(struct host_cmd_ds_command *cmd, u16 cmd_action,
 688                            u32 type, void *cmd_buf)
 689 {
 690         u8 *tlv;
 691         u16 cmd_size, param_size, ie_size;
 692         struct host_cmd_ds_sys_config *sys_cfg;
 693
 694         cmd->command = cpu_to_le16(HostCmd_CMD_UAP_SYS_CONFIG);
 695         cmd_size = (u16)(sizeof(struct host_cmd_ds_sys_config) + S_DS_GEN);
 696         sys_cfg = (struct host_cmd_ds_sys_config *)&cmd->params.uap_sys_config;
 697         sys_cfg->action = cpu_to_le16(cmd_action);
 698         tlv = sys_cfg->tlv;
 699
 700         switch (type) {
 701         case UAP_BSS_PARAMS_I:
 702                 param_size = cmd_size;
 703                 if (mwifiex_uap_bss_param_prepare(tlv, cmd_buf, &param_size))
 704                         return -1;
 705                 cmd->size = cpu_to_le16(param_size);
 706                 break;
 707         case UAP_CUSTOM_IE_I:
 708                 ie_size = cmd_size;
 709                 if (mwifiex_uap_custom_ie_prepare(tlv, cmd_buf, &ie_size))
 710                         return -1;
 711                 cmd->size = cpu_to_le16(ie_size);
 712                 break;
 713         default:
 714                 return -1;
 715         }
 716
 717         return 0;
 718 }
 719
 720 /* This function prepares AP specific deauth command with mac supplied in
 721  * function parameter.
 722  */
 723 static int mwifiex_cmd_uap_sta_deauth(struct mwifiex_private *priv,
 724                                       struct host_cmd_ds_command *cmd, u8 *mac)
 725 {
 726         struct host_cmd_ds_sta_deauth *sta_deauth = &cmd->params.sta_deauth;
 727
 728         cmd->command = cpu_to_le16(HostCmd_CMD_UAP_STA_DEAUTH);
 729         memcpy(sta_deauth->mac, mac, ETH_ALEN);
 730         sta_deauth->reason = cpu_to_le16(WLAN_REASON_DEAUTH_LEAVING);
 731
 732         cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_sta_deauth) +
 733                                 S_DS_GEN);
 734         return 0;
 735 }
 736
 737 /* This function prepares the AP specific commands before sending them
 738  * to the firmware.
 739  * This is a generic function which calls specific command preparation
 740  * routines based upon the command number.
 741  */
 742 int mwifiex_uap_prepare_cmd(struct mwifiex_private *priv, u16 cmd_no,
 743                             u16 cmd_action, u32 type,
 744                             void *data_buf, void *cmd_buf)
 745 {
 746         struct host_cmd_ds_command *cmd = cmd_buf;
 747
 748         switch (cmd_no) {
 749         case HostCmd_CMD_UAP_SYS_CONFIG:
 750                 if (mwifiex_cmd_uap_sys_config(cmd, cmd_action, type, data_buf))
 751                         return -1;
 752                 break;
 753         case HostCmd_CMD_UAP_BSS_START:
 754         case HostCmd_CMD_UAP_BSS_STOP:
 755                 cmd->command = cpu_to_le16(cmd_no);
 756                 cmd->size = cpu_to_le16(S_DS_GEN);
 757                 break;
 758         case HostCmd_CMD_UAP_STA_DEAUTH:
 759                 if (mwifiex_cmd_uap_sta_deauth(priv, cmd, data_buf))
 760                         return -1;
 761                 break;
 762         default:
 763                 dev_err(priv->adapter->dev,
 764                         "PREP_CMD: unknown cmd %#x\n", cmd_no);
 765                 return -1;
 766         }
 767
 768         return 0;
 769 }