/**
* \brief Callback to get the Wi-Fi status update.
*
* \param[in] u8MsgType type of Wi-Fi notification. Possible types are:
* - [M2M_WIFI_RESP_CURRENT_RSSI](@ref M2M_WIFI_RESP_CURRENT_RSSI)
* - [M2M_WIFI_RESP_CON_STATE_CHANGED](@ref M2M_WIFI_RESP_CON_STATE_CHANGED)
* - [M2M_WIFI_REQ_DHCP_CONF](@ref M2M_WIFI_REQ_DHCP_CONF)
* \param[in] pvMsg A pointer to a buffer containing the notification parameters
* (if any). It should be casted to the correct data type corresponding to the
* notification type.
*/
static void wifi_cb(uint8_t u8MsgType, void *pvMsg)
{
switch (u8MsgType) {
case M2M_WIFI_RESP_CON_STATE_CHANGED:
{
tstrM2mWifiStateChanged *pstrWifiState = (tstrM2mWifiStateChanged *)pvMsg;
if (pstrWifiState->u8CurrState == M2M_WIFI_CONNECTED) {
m2m_wifi_request_dhcp_client();
} else if (pstrWifiState->u8CurrState == M2M_WIFI_DISCONNECTED) {
printf("Wi-Fi disconnected\r\n");
/* Connect to defined AP. */
m2m_wifi_connect((char *)MAIN_WLAN_SSID, sizeof(MAIN_WLAN_SSID), MAIN_WLAN_AUTH, (void *)MAIN_WLAN_PSK, M2M_WIFI_CH_ALL);
}
break;
}
case M2M_WIFI_REQ_DHCP_CONF:
{
uint8_t *pu8IPAddress = (uint8_t *)pvMsg;
printf("Wi-Fi connected\r\n");
printf("Wi-Fi IP is %u.%u.%u.%u\r\n",
pu8IPAddress[0], pu8IPAddress[1], pu8IPAddress[2], pu8IPAddress[3]);
/* Request RSSI for the connected AP. */
m2m_wifi_req_curr_rssi();
break;
}
case M2M_WIFI_RESP_CURRENT_RSSI:
{
/* This message type is triggered by "m2m_wifi_req_curr_rssi()" function. */
int8_t *rssi = (int8_t *)pvMsg;
printf("RSSI for the current connected AP (%d)\r\n", (int8_t)(*rssi));
break;
}
default:
{
break;
}
}
}
int32_t WiFiClass::RSSI()
{
// Clear pending events:
m2m_wifi_handle_events(NULL);
// Send RSSI request:
_resolve = 0;
if (m2m_wifi_req_curr_rssi() < 0) {
return 0;
}
// Wait for connection or timeout:
unsigned long start = millis();
while (_resolve == 0 && millis() - start < 1000) {
m2m_wifi_handle_events(NULL);
}
return _resolve;
}
