//*****************************************************************************
//
//! \brief Get the NTP time
//!
//! \param none
//!
//! \return void
//! \note
//! \warning
//
//*****************************************************************************
uint8_t GetTime(struct tm * decodedTime)
{
const char * g_acSNTPserver = "wwv.nist.gov"; //Add any one of the above servers
unsigned long ulDestinationIP;
int iSocketDesc;
long lRetVal;
char cDataBuf[48];
int iAddrSize;
SlSockAddr_t sAddr;
SlSockAddrIn_t sLocalAddr;
//
// Create UDP socket
//
iSocketDesc = sl_Socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if(iSocketDesc < 0)
{
ERR_PRINT(iSocketDesc);
return 0;
}
//g_sAppData.iSockID = iSocketDesc;
UART_PRINT("Socket created\n\r");
//
// Get the NTP server host IP address using the DNS lookup
//
lRetVal = Network_IF_GetHostIP((char*)g_acSNTPserver, &ulDestinationIP);
if( lRetVal >= 0)
{
struct SlTimeval_t timeVal;
timeVal.tv_sec = SERVER_RESPONSE_TIMEOUT; // Seconds
timeVal.tv_usec = 0; // Microseconds. 10000 microseconds resolution
lRetVal = sl_SetSockOpt(iSocketDesc,SL_SOL_SOCKET,SL_SO_RCVTIMEO,\
(unsigned char*)&timeVal, sizeof(timeVal));
if(lRetVal < 0)
{
ERR_PRINT(lRetVal);
//
// Close the socket
//
close(iSocketDesc);
UART_PRINT("Socket closed\n\r");
return 0;
}
//
// Send a query ? to the NTP server to get the NTP time
//
memset(cDataBuf, 0, sizeof(cDataBuf));
cDataBuf[0] = '\x1b';
sAddr.sa_family = AF_INET;
// the source port
sAddr.sa_data[0] = 0x00;
sAddr.sa_data[1] = 0x7B; // UDP port number for NTP is 123
sAddr.sa_data[2] = (char)((ulDestinationIP>>24)&0xff);
sAddr.sa_data[3] = (char)((ulDestinationIP>>16)&0xff);
sAddr.sa_data[4] = (char)((ulDestinationIP>>8)&0xff);
sAddr.sa_data[5] = (char)(ulDestinationIP&0xff);
lRetVal = sl_SendTo(iSocketDesc,
cDataBuf,
sizeof(cDataBuf), 0,
&sAddr, sizeof(sAddr));
if (lRetVal != sizeof(cDataBuf))
{
// could not send SNTP request
//ASSERT_ON_ERROR(SERVER_GET_TIME_FAILED);
return 0;
}
//
// Wait to receive the NTP time from the server
//
sLocalAddr.sin_family = SL_AF_INET;
sLocalAddr.sin_port = 0;
sLocalAddr.sin_addr.s_addr = 0;
lRetVal = sl_Bind(iSocketDesc,
(SlSockAddr_t *)&sLocalAddr,
sizeof(SlSockAddrIn_t));
iAddrSize = sizeof(SlSockAddrIn_t);
lRetVal = sl_RecvFrom(iSocketDesc,
cDataBuf, sizeof(cDataBuf), 0,
(SlSockAddr_t *)&sLocalAddr,
(SlSocklen_t*)&iAddrSize);
//ASSERT_ON_ERROR(lRetVal);
if(lRetVal < 0)
{
UART_PRINT("Server Get Time failed\n\r");
//
// Close the socket
//
close(iSocketDesc);
UART_PRINT("Socket closed\n\r");
return 0;
}
// We received the time
DecodeSNTPTime(cDataBuf, decodedTime);
}
else
{
//*****************************************************************************
//
//! UARTCommandHandler
//!
//! @brief The function handles commands arrived from CLI
//!
//! @param usBuffer is the receive buffer from the UART interface to PC
//!
//! @return 0 on success or error code on failure
//!
//
//*****************************************************************************
long UARTCommandHandler(char *usBuffer)
{
int iIndex = 0;
int iParamcount = 0;
long lRetVal = -1;
signed char cStatus1 = 0;
signed char cStatus2 = 0;
if(usBuffer == NULL)
{
UART_PRINT("Null pointer\r\n");
return -1;
}
switch(usBuffer[1])
{
//**********************************************
// Case 01: Connect to default AP
//**********************************************
case UART_COMMAND_SIMPLE_CONFIG_START:
if(!IS_CONNECTED(Network_IF_CurrentMCUState()))
{
LedTimerConfigNStart();
// Setting Acess Point's security parameters
SecurityParams.Key = (signed char *)SECURITY_KEY;
SecurityParams.KeyLen = strlen(SECURITY_KEY);
SecurityParams.Type = SECURITY_TYPE;
lRetVal = Network_IF_ConnectAP(SSID_NAME,SecurityParams);
if(lRetVal < 0)
{
UART_PRINT("Error: %d Connecting to an AP.", lRetVal);
return lRetVal;
}
}
//
// Disable the LED blinking Timer as Device is connected to AP
//
LedTimerDeinitStop();
//
// Switch ON RED LED to indicate that Device acquired an IP
//
GPIO_IF_LedOn(MCU_IP_ALLOC_IND);
DispatcherUartSendPacket((char*)pucUARTOKString,
sizeof(pucUARTOKString));
break;
//**********************************************
// Case 02: Configure sender (source) email
//**********************************************
// TODO Phase 2: Include
/*
case UART_COMMAND_EMAIL_SOURCE:
memset(serveruser,0,sizeof(serveruser));
memset(pcServerpass,0,sizeof(pcServerpass));
pcOfserveruser = &serveruser[0];
ofpcServerpass = &pcServerpass[0];
// '<' To maintain RFC 2821 format
*pcOfserveruser++= '<';
iIndex = 2;
while ((int)usBuffer[iIndex] != 0x0D)
{
//look for comma ',' for separation of params
if((int)usBuffer[iIndex] == 44)
{
iParamcount++;
}
else
{
if(iParamcount==1)
{
//Enter smtp server username (email address)
*pcOfserveruser++ = usBuffer[iIndex];
}
if(iParamcount==2)
{
//Enter username's password
*ofpcServerpass++ = usBuffer[iIndex];
}
}
iIndex++;
}
// '>' To maintain RFC 2821 format
*pcOfserveruser++= '>';
*pcOfserveruser++= '\0';
*ofpcServerpass++= '\0';
//Set variables in smtp.c
cStatus1 = smtpSetVariable(serveruser, USERNAME_VAR);
cStatus2 = smtpSetVariable(pcServerpass, PASSWORD_VAR);
//If error in return
if(cStatus1 == 0 && cStatus2 == 0)
{
DispatcherUartSendPacket((char*)pucUARTOKString, sizeof(pucUARTOKString));
}
else
{
DispatcherUartSendPacket((char*)putUARTErrorInputString, \
sizeof(putUARTErrorInputString));
}
break;
*/
//**********************************************
// Case 03: Configure sender (source) email
//**********************************************
case UART_COMMAND_EMAIL_HEADER:
memset(pcEmailto,0,sizeof(pcEmailto));
pcOfemailto = &pcEmailto[0];
pcOfemailsubject = &pcEmailsubject[0];
// '<' To maintain RFC 2821 format
*pcOfemailto++= '<';
iIndex = 2;
while ((int)usBuffer[iIndex] != 0x0D && usBuffer[iIndex] != '\0')
{
//look for comma ',' for separation of params
if((int)usBuffer[iIndex] == 44)
{
iParamcount++;
}
else
{
if(iParamcount==1)
{
//Enter destination email address
*pcOfemailto++ = usBuffer[iIndex];
}
if(iParamcount==2)
{
//Enter email subject
*pcOfemailsubject++ = usBuffer[iIndex];
}
}
iIndex++;
}
// '>' To maintain RFC 2821 format
*pcOfemailto++= '>';
*pcOfemailto++= '\0';
*pcOfemailsubject= '\0';
SlNetAppDestination_t destEmailAdd;
memcpy(destEmailAdd.Email,pcEmailto,strlen(pcEmailto)+1);
cStatus1 = sl_NetAppEmailSet(SL_NET_APP_EMAIL_ID,NETAPP_DEST_EMAIL, \
strlen(pcEmailto)+1, \
(unsigned char *)&destEmailAdd);
SlNetAppEmailSubject_t emailSubject;
memcpy(emailSubject.Value,pcEmailsubject,strlen(pcEmailsubject)+1);
cStatus2 = sl_NetAppEmailSet(SL_NET_APP_EMAIL_ID,NETAPP_SUBJECT, \
strlen(pcEmailsubject)+1, \
(unsigned char *)&emailSubject);
// Check for Error in setting the variables
if(cStatus1 == 0 && cStatus2 == 0)
{
DispatcherUartSendPacket((char*)pucUARTOKString, \
sizeof(pucUARTOKString));
}
else
{
DispatcherUartSendPacket((char*)putUARTErrorInputString, \
sizeof(putUARTErrorInputString));
}
break;
//**********************************************
// Case 04: Record email message
//**********************************************
case UART_COMMAND_EMAIL_MESSAGE:
pcOfemailmessage = &pcEmailmessage[0];
//Enter "Message"
iIndex =3;
while ((int)usBuffer[iIndex] != 0x0D && usBuffer[iIndex] != '\0')
{
if((int)usBuffer[iIndex] == 62)
{
iParamcount++;
}
else
{
if(iParamcount==0)
{
*pcOfemailmessage++ = usBuffer[iIndex];
}
}
iIndex++;
}
*pcOfemailmessage= '\0';
/* TODO here unsigned char is converting to char */
DispatcherUartSendPacket((char*)pucUARTOKString, \
sizeof(pucUARTOKString));
break;
//**********************************************
// Case 05: Send email message using configurations
//**********************************************
case UART_COMMAND_EMAIL_SEND:
{
// reset Orange LED state
GPIO_IF_LedOff(MCU_SENDING_DATA_IND);
// TODO: If no destination email given, default to hardcoded value
SlNetAppEmailOpt_t eMailServerSetting;
lRetVal = Network_IF_GetHostIP(GMAIL_HOST_NAME, &eMailServerSetting.Ip);
if(lRetVal >= 0)
{
eMailServerSetting.Family = AF_INET;
eMailServerSetting.Port = GMAIL_HOST_PORT;
eMailServerSetting.SecurityMethod = SL_SO_SEC_METHOD_SSLV3;
eMailServerSetting.SecurityCypher = SL_SEC_MASK_SSL_RSA_WITH_RC4_128_MD5;
lRetVal = sl_NetAppEmailSet(SL_NET_APP_EMAIL_ID, \
NETAPP_ADVANCED_OPT, \
sizeof(SlNetAppEmailOpt_t), \
(unsigned char*)&eMailServerSetting);
ASSERT_ON_ERROR(lRetVal);
}
else
{
UART_PRINT("Error:%d GetHostIP.", lRetVal);
return -1;
}
g_cConnectStatus = sl_NetAppEmailConnect();
// If return -1, throw connect error
if(g_cConnectStatus == -1)
{
DispatcherUartSendPacket((char*)pucUARTErrorSocketCreateString, \
sizeof(pucUARTErrorSocketCreateString));
}
// If return -2, throw socket option error
if(g_cConnectStatus == -2)
{
DispatcherUartSendPacket((char*)pucUARTErrorSocketOptionString, \
sizeof(pucUARTErrorSocketOptionString));
}
if(g_cConnectStatus == 0)
{
SlNetAppServerError_t sEmailErrorInfo;
long lRetCode = SL_EMAIL_ERROR_FAILED;
if((lRetCode = sl_NetAppEmailSend(pcEmailto,pcEmailsubject, \
pcEmailmessage, \
&sEmailErrorInfo)) == SL_EMAIL_ERROR_NONE)
{
// Blink LED7 to indicate email has been sent
for(iIndex=0 ;iIndex<5 ;iIndex++)
{
MAP_UtilsDelay(6000000);
GPIO_IF_LedOff(MCU_SENDING_DATA_IND);
MAP_UtilsDelay(6000000);
GPIO_IF_LedOn(MCU_SENDING_DATA_IND);
}
DispatcherUartSendPacket((char*)putUARTFinishString, \
sizeof(putUARTFinishString));
}
else
{
lRetVal = EmailHandleERROR(lRetCode,(char*)sEmailErrorInfo.Value);
ASSERT_ON_ERROR(lRetVal);
}
}
}
break;
case UART_COMMAND_SMART_CONFIG:
GPIO_IF_LedOff(MCU_IP_ALLOC_IND);
DispatcherUartSendPacket((char*)pucUARTSmartConfigString, \
sizeof(pucUARTSmartConfigString));
// Start LED blinking Timer
LedTimerConfigNStart();
//Reset the Network Status before Entering Smart Config
Network_IF_UnsetMCUMachineState(STATUS_BIT_CONNECTION);
Network_IF_UnsetMCUMachineState(STATUS_BIT_IP_AQUIRED);
// start smart config process
lRetVal = SmartConfigConnect();
ASSERT_ON_ERROR(lRetVal);
while (!(IS_CONNECTED(Network_IF_CurrentMCUState())) || \
!(IS_IP_ACQUIRED(Network_IF_CurrentMCUState())))
{
MAP_UtilsDelay(100);
}
LedTimerDeinitStop();
GPIO_IF_LedOn(MCU_IP_ALLOC_IND);
break;
default:
DispatcherUartSendPacket((char*)pucUARTErrorString, \
sizeof(pucUARTErrorString));
break;
}
return SUCCESS;
}
//****************************************************************************
//
//! Task function implementing the gettime functionality using an NTP server
//!
//! \param none
//!
//! This function
//! 1. Initializes the required peripherals
//! 2. Initializes network driver and connects to the default AP
//! 3. Creates a UDP socket, gets the NTP server IP address using DNS
//! 4. Periodically gets the NTP time and displays the time
//!
//! \return None.
//
//****************************************************************************
void GetNTPTimeTask(void *pvParameters)
{
int iSocketDesc;
long lRetVal = -1;
UART_PRINT("GET_TIME: Test Begin\n\r");
//
// Configure LED
//
GPIO_IF_LedConfigure(LED1|LED3);
GPIO_IF_LedOff(MCU_RED_LED_GPIO);
GPIO_IF_LedOff(MCU_GREEN_LED_GPIO);
//
// Reset The state of the machine
//
Network_IF_ResetMCUStateMachine();
//
// Start the driver
//
lRetVal = Network_IF_InitDriver(ROLE_STA);
if(lRetVal < 0)
{
UART_PRINT("Failed to start SimpleLink Device\n\r",lRetVal);
LOOP_FOREVER();
}
// switch on Green LED to indicate Simplelink is properly up
GPIO_IF_LedOn(MCU_ON_IND);
// Start Timer to blink Red LED till AP connection
LedTimerConfigNStart();
// Initialize AP security params
SecurityParams.Key = (signed char *)SECURITY_KEY;
SecurityParams.KeyLen = strlen(SECURITY_KEY);
SecurityParams.Type = SECURITY_TYPE;
//
// Connect to the Access Point
//
lRetVal = Network_IF_ConnectAP(SSID_NAME, SecurityParams);
if(lRetVal < 0)
{
UART_PRINT("Connection to an AP failed\n\r");
LOOP_FOREVER();
}
//
// Disable the LED blinking Timer as Device is connected to AP
//
LedTimerDeinitStop();
//
// Switch ON RED LED to indicate that Device acquired an IP
//
GPIO_IF_LedOn(MCU_IP_ALLOC_IND);
//
// Create UDP socket
//
iSocketDesc = sl_Socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if(iSocketDesc < 0)
{
ERR_PRINT(iSocketDesc);
goto end;
}
g_sAppData.iSockID = iSocketDesc;
UART_PRINT("Socket created\n\r");
//
// Get the NTP server host IP address using the DNS lookup
//
lRetVal = Network_IF_GetHostIP((char*)g_acSNTPserver, \
&g_sAppData.ulDestinationIP);
if( lRetVal >= 0)
{
struct SlTimeval_t timeVal;
timeVal.tv_sec = SERVER_RESPONSE_TIMEOUT; // Seconds
timeVal.tv_usec = 0; // Microseconds. 10000 microseconds resolution
lRetVal = sl_SetSockOpt(g_sAppData.iSockID,SL_SOL_SOCKET,SL_SO_RCVTIMEO,\
(unsigned char*)&timeVal, sizeof(timeVal));
if(lRetVal < 0)
{
ERR_PRINT(lRetVal);
LOOP_FOREVER();
}
while(1)
{
//
// Get the NTP time and display the time
//
lRetVal = GetSNTPTime(GMT_DIFF_TIME_HRS, GMT_DIFF_TIME_MINS);
if(lRetVal < 0)
{
UART_PRINT("Server Get Time failed\n\r");
break;
}
//
// Wait a while before resuming
//
MAP_UtilsDelay(SLEEP_TIME);
}
}
else
{
UART_PRINT("DNS lookup failed. \n\r");
}
//
// Close the socket
//
close(iSocketDesc);
UART_PRINT("Socket closed\n\r");
end:
//
// Stop the driver
//
lRetVal = Network_IF_DeInitDriver();
if(lRetVal < 0)
{
UART_PRINT("Failed to stop SimpleLink Device\n\r");
LOOP_FOREVER();
}
//
// Switch Off RED & Green LEDs to indicate that Device is
// disconnected from AP and Simplelink is shutdown
//
GPIO_IF_LedOff(MCU_IP_ALLOC_IND);
GPIO_IF_LedOff(MCU_GREEN_LED_GPIO);
UART_PRINT("GET_TIME: Test Complete\n\r");
//
// Loop here
//
LOOP_FOREVER();
}
