/**
* @brief This function prepares domain info from scan table and
* downloads the domain info command to the FW.
*
* @param pmpriv A pointer to mlan_private structure
*
* @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE
*/
mlan_status
wlan_11d_prepare_dnld_domain_info_cmd(mlan_private * pmpriv)
{
mlan_status ret = MLAN_STATUS_SUCCESS;
mlan_adapter *pmadapter = pmpriv->adapter;
IEEEtypes_CountryInfoFullSet_t *pcountry_full = MNULL;
t_u32 idx;
ENTER();
/* Only valid if 11D is enabled */
if (wlan_11d_get_state(pmpriv) == ENABLE_11D &&
pmadapter->num_in_scan_table != 0) {
for (idx = 0; idx < pmadapter->num_in_scan_table; idx++) {
pcountry_full = &pmadapter->pscan_table[idx].country_info;
if (*(pcountry_full->country_code) == 0 ||
(pcountry_full->len <= COUNTRY_CODE_LEN)) {
/* Country info not found in the BSS descriptor */
ret =
wlan_11d_update_chan_pwr_table(pmpriv,
&pmadapter->
pscan_table[idx]);
} else {
/* Country info found in the BSS Descriptor */
ret =
wlan_11d_process_country_info(pmpriv,
&pmadapter->pscan_table[idx]);
/*
* If valid country IE found, in BSS, channel table is updated
* Send FW command
*/
if (ret == MLAN_STATUS_SUCCESS)
break;
}
}
/* Check if connected */
if (pmpriv->media_connected == MTRUE) {
ret =
wlan_11d_parse_dnld_countryinfo(pmpriv,
&pmpriv->curr_bss_params.
bss_descriptor);
} else {
ret = wlan_11d_parse_dnld_countryinfo(pmpriv, MNULL);
}
}
LEAVE();
return ret;
}
/**
* @brief Process an TLV buffer for a pending BSS Adhoc start command.
*
* Activate 11h functionality in the firmware if driver has is enabled
* for 11h (configured by the application via IOCTL).
*
* @param priv Private driver information structure
* @param ppbuffer Output parameter: Pointer to the TLV output buffer,
* modified on return to point after the appended 11h TLVs
* @param pcap_info Pointer to the capability info for the BSS to join
* @param channel Channel on which we are starting the IBSS
* @param p11h_bss_info Input/Output parameter: Pointer to the 11h BSS
* information for this network that we are establishing.
* 11h sensed flag set on output if warranted.
*
* @return Integer number of bytes appended to the TLV output
* buffer (ppbuffer)
*
*/
int
wlan_11h_process_start(mlan_private * priv,
t_u8 ** ppbuffer,
IEEEtypes_CapInfo_t * pcap_info,
t_u32 channel, wlan_11h_bss_info_t * p11h_bss_info)
{
mlan_adapter *adapter = priv->adapter;
int ret = 0;
ENTER();
if (wlan_11h_is_enabled(priv)
&& ((adapter->adhoc_start_band & BAND_A)
|| (adapter->adhoc_start_band & BAND_AN)
)
) {
if (wlan_11d_get_state(priv) == DISABLE_11D) {
/* No use having 11h enabled without 11d enabled */
wlan_11d_enable(priv, MNULL, ENABLE_11D);
wlan_11d_create_dnld_countryinfo(priv, adapter->adhoc_start_band);
}
/* Activate 11h functions in firmware, turns on capability bit */
wlan_11h_activate(priv, MTRUE);
pcap_info->spectrum_mgmt = 1;
/* Set flag indicating this BSS we are starting is using 11h */
p11h_bss_info->sensed_11h = MTRUE;
ret = wlan_11h_process_adhoc(priv, ppbuffer, channel, MNULL);
} else {
/* Deactivate 11h functions in the firmware */
wlan_11h_activate(priv, MFALSE);
pcap_info->spectrum_mgmt = 0;
}
LEAVE();
return ret;
}
/**
* @brief This function parses country info from AP and
* download country info to FW
*
* @param pmpriv A pointer to mlan_private structure
* @param pbss_desc A pointer to BSS descriptor
*
* @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE
*/
mlan_status
wlan_11d_parse_dnld_countryinfo(mlan_private * pmpriv,
BSSDescriptor_t * pbss_desc)
{
mlan_status ret = MLAN_STATUS_SUCCESS;
mlan_adapter *pmadapter = pmpriv->adapter;
parsed_region_chan_11d_t region_chan;
parsed_region_chan_11d_t bssdesc_region_chan;
t_u32 i, j;
ENTER();
/* Only valid if 11D is enabled */
if (wlan_11d_get_state(pmpriv) == ENABLE_11D) {
memset(pmadapter, &pmadapter->domain_reg, 0,
sizeof(wlan_802_11d_domain_reg_t));
memset(pmadapter, ®ion_chan, 0, sizeof(parsed_region_chan_11d_t));
memset(pmadapter, &bssdesc_region_chan, 0,
sizeof(parsed_region_chan_11d_t));
memcpy(pmadapter, ®ion_chan,
&pmadapter->parsed_region_chan,
sizeof(parsed_region_chan_11d_t));
if (pbss_desc) {
/* Parse domain info if available */
ret =
wlan_11d_parse_domain_info(pmadapter, &pbss_desc->country_info,
pbss_desc->bss_band,
&bssdesc_region_chan);
if (ret == MLAN_STATUS_SUCCESS) {
/* Update the channel-power table */
for (i = 0; ((i < bssdesc_region_chan.no_of_chan)
&& (i < MAX_NO_OF_CHAN)); i++) {
for (j = 0; ((j < region_chan.no_of_chan)
&& (j < MAX_NO_OF_CHAN)); j++) {
/*
* Channel already exists, so overwrite existing
* tx power with the tx_power received from
* country info of the current AP
*/
if (region_chan.chan_pwr[i].chan ==
bssdesc_region_chan.chan_pwr[j].chan) {
region_chan.chan_pwr[j].pwr =
bssdesc_region_chan.chan_pwr[i].pwr;
break;
}
}
}
}
}
/* Generate domain info */
wlan_11d_generate_domain_info(pmadapter, ®ion_chan,
&pmadapter->domain_reg);
/* Set domain info */
ret = wlan_11d_set_domain_info(pmpriv);
if (ret) {
PRINTM(MERROR, "11D: Error setting domain info in FW\n");
}
}
LEAVE();
return ret;
}
/**
* @brief This function handles disconnect event, reports disconnect
* to upper layer, cleans tx/rx packets,
* resets link state etc.
*
* @param priv A pointer to mlan_private structure
*
* @return N/A
*/
t_void
wlan_reset_connect_state(pmlan_private priv)
{
mlan_adapter *pmadapter = priv->adapter;
mlan_status ret = MLAN_STATUS_SUCCESS;
state_11d_t enable;
ENTER();
if (priv->media_connected != MTRUE) {
LEAVE();
return;
}
PRINTM(MINFO, "Handles disconnect event.\n");
priv->media_connected = MFALSE;
if (priv->port_ctrl_mode == MTRUE) {
/* Close the port on Disconnect */
PRINTM(MINFO, "DISC: port_status = CLOSED\n");
priv->port_open = MFALSE;
}
priv->scan_block = MFALSE;
/* Free Tx and Rx packets, report disconnect to upper layer */
wlan_clean_txrx(priv);
/* Reset SNR/NF/RSSI values */
priv->data_rssi_last = 0;
priv->data_nf_last = 0;
priv->data_rssi_avg = 0;
priv->data_nf_avg = 0;
priv->bcn_rssi_last = 0;
priv->bcn_nf_last = 0;
priv->bcn_rssi_avg = 0;
priv->bcn_nf_avg = 0;
priv->rxpd_rate = 0;
priv->rxpd_htinfo = 0;
priv->sec_info.ewpa_enabled = MFALSE;
priv->sec_info.wpa_enabled = MFALSE;
priv->sec_info.wpa2_enabled = MFALSE;
priv->wpa_ie_len = 0;
priv->sec_info.wapi_enabled = MFALSE;
priv->wapi_ie_len = 0;
priv->sec_info.wapi_key_on = MFALSE;
priv->sec_info.encryption_mode = MLAN_ENCRYPTION_MODE_NONE;
/* Enable auto data rate */
priv->is_data_rate_auto = MTRUE;
priv->data_rate = 0;
if (priv->bss_mode == MLAN_BSS_MODE_IBSS) {
priv->adhoc_state = ADHOC_IDLE;
priv->adhoc_is_link_sensed = MFALSE;
priv->adhoc_auto_sel = MTRUE;
}
/*
* Memorize the previous SSID and BSSID so
* it could be used for re-assoc
*/
PRINTM(MINFO, "Previous SSID=%s, SSID Length=%u\n",
priv->prev_ssid.ssid, priv->prev_ssid.ssid_len);
PRINTM(MINFO, "Current SSID=%s, SSID Length=%u\n",
priv->curr_bss_params.bss_descriptor.ssid.ssid,
priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
memcpy(pmadapter, &priv->prev_ssid,
&priv->curr_bss_params.bss_descriptor.ssid,
sizeof(mlan_802_11_ssid));
memcpy(pmadapter, priv->prev_bssid,
priv->curr_bss_params.bss_descriptor.mac_address,
MLAN_MAC_ADDR_LENGTH);
/* Need to erase the current SSID and BSSID info */
memset(pmadapter, &priv->curr_bss_params, 0x00,
sizeof(priv->curr_bss_params));
pmadapter->tx_lock_flag = MFALSE;
pmadapter->pps_uapsd_mode = MFALSE;
if ((wlan_11d_get_state(priv) == ENABLE_11D) &&
(pmadapter->state_11d.user_enable_11d == DISABLE_11D)) {
pmadapter->state_11d.enable_11d = DISABLE_11D;
enable = DISABLE_11D;
/* Send cmd to FW to enable/disable 11D function */
ret = wlan_prepare_cmd(priv,
HostCmd_CMD_802_11_SNMP_MIB,
HostCmd_ACT_GEN_SET, Dot11D_i, MNULL, &enable);
if (ret)
PRINTM(MERROR, "11D: Failed to enable 11D\n");
}
if (pmadapter->num_cmd_timeout && pmadapter->curr_cmd &&
(pmadapter->cmd_timer_is_set == MFALSE)) {
LEAVE();
return;
}
wlan_recv_event(priv, MLAN_EVENT_ID_FW_DISCONNECTED, MNULL);
LEAVE();
}