/*!
\brief closes an opened spi communication port
\param fd - file descriptor of an opened SPI channel
\return upon successful completion, the function shall return 0.
Otherwise, -1 shall be returned
\sa spi_Open
\note
\warning
*/
int spi_Close(Fd_t fd)
{
unsigned long ulBase = LSPI_BASE;
g_SpiFd = 0;
if(g_ucDMAEnabled)
{
//Simplelink_UDMADeInit();
#ifdef SL_PLATFORM_MULTI_THREADED
osi_InterruptDeRegister(INT_LSPI);
osi_MsgQDelete(&DMAMsgQ);
#else
SPIIntUnregister(ulBase);
g_cDummy = 0;
#endif
SPIFIFODisable(ulBase,SPI_RX_FIFO);
SPIFIFODisable(ulBase,SPI_TX_FIFO);
SPIDmaDisable(ulBase,SPI_RX_DMA);
SPIDmaDisable(ulBase,SPI_TX_DMA);
}
//Disable Chip Select
SPICSDisable(LSPI_BASE);
//Disable SPI Channel
SPIDisable(ulBase);
// Reset SPI
SPIReset(ulBase);
// Enable SPI Peripheral
PRCMPeripheralClkDisable(PRCM_LSPI,PRCM_RUN_MODE_CLK|PRCM_SLP_MODE_CLK);
return 0;
}
//*****************************************************************************
//
//! Control Destroy Routine
//!
//! \param None
//!
//! \return 0 - Success
//! -1 - Error
//
//*****************************************************************************
long ControlTaskDestroy()
{
long lRetVal = -1;
lRetVal = osi_MsgQDelete(&g_ControlMsgQueue);
ASSERT_ON_ERROR(lRetVal);
osi_TaskDelete(&g_AudioControlTask);
g_ControlMsgQueue = NULL;
g_AudioControlTask = NULL;
return SUCCESS;
}
//*****************************************************************************
//
//! \brief Task Created by main fucntion. This task creates a udp server and
//! wait for packets. Upon receiving the packet, signals the other task.
//!
//! \param pvParameters is a general void pointer (not used here).
//!
//! \return none
//
//*****************************************************************************
void UDPServerTask(void *pvParameters)
{
unsigned char ucSyncMsg;
unsigned char ucQueueMsg = 3;
int iSockDesc = 0;
int iRetVal = 0;
sockaddr_in sLocalAddr;
sockaddr_in sClientAddr;
unsigned int iAddrSize = 0;
//
// waiting for the other task to start simplelink and connection to the AP
//
osi_MsgQRead(&g_tConnectionFlag, &ucSyncMsg, OSI_WAIT_FOREVER);
osi_MsgQDelete(&g_tConnectionFlag);
//
// configure the Server
//
sLocalAddr.sin_family = SL_AF_INET;
sLocalAddr.sin_port = sl_Htons((unsigned short)APP_UDP_PORT);
sLocalAddr.sin_addr.s_addr = 0;
iAddrSize = sizeof(sockaddr_in);
//
// creating a UDP socket
//
iSockDesc = sl_Socket(SL_AF_INET,SL_SOCK_DGRAM, 0);
if(iSockDesc < 0)
{
UART_PRINT("sock error\n\r");
LOOP_FOREVER();
}
//
// binding the socket
//
iRetVal = sl_Bind(iSockDesc, (SlSockAddr_t *)&sLocalAddr, iAddrSize);
if(iRetVal < 0)
{
UART_PRINT("bind error\n\r");
LOOP_FOREVER();
}
while(FOREVER)
{
//
// waiting on a UDP packet
//
iRetVal = sl_RecvFrom(iSockDesc, g_cBuffer, BUFF_SIZE, 0,
( SlSockAddr_t *)&sClientAddr,
(SlSocklen_t*)&iAddrSize );
if(iRetVal > 0)
{
//
// signal the other task about receiving the UDP packet
//
osi_MsgQWrite(&g_tWkupSignalQueue, &ucQueueMsg, OSI_WAIT_FOREVER);
}
else
{
UART_PRINT("recv error\n\r");
LOOP_FOREVER();
}
}
}