FreeRTOS/Demo/CORTEX_A9_Cyclone_V_SoC_DK/serial.c

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*/

/*
	BASIC SERIAL PORT DRIVER.

	This file just maps generic functions used by FreeRTOS example code to the
	simple UART drivers provided by Altera.
*/

/* Scheduler includes. */
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
#include "semphr.h"

/* Demo application includes. */
#include "serial.h"

/* Altera library includes. */
#include "uart0_support.h"

/*-----------------------------------------------------------*/

/*
 * See the serial2.h header file.
 */
xComPortHandle xSerialPortInitMinimal( uint32_t ulWantedBaud, UBaseType_t uxQueueLength )
{
	/* Just call into the Altera support function, which has its own parameters,
	so the parameters passed in here are not used. */
	( void ) ulWantedBaud;
	( void ) uxQueueLength;
	uart0_init();

	return ( xComPortHandle ) 0;
}
/*-----------------------------------------------------------*/

BaseType_t xSerialGetChar( xComPortHandle pxPort, signed char *pcRxedChar, TickType_t xBlockTime )
{
BaseType_t xReturn;

	/* Just call into the Altera support function, which has its own parameters,
	so the parameters passed in here are not used. */
	( void ) pxPort;
	( void ) xBlockTime;

	*pcRxedChar = uart0_getc();

	if( *pcRxedChar != -1 )
	{
		xReturn = pdPASS;
	}
	else
	{
		xReturn = pdFAIL;
	}

	return xReturn;
}
/*-----------------------------------------------------------*/

void vSerialPutString( xComPortHandle pxPort, const signed char * const pcString, unsigned short usStringLength )
{
	/* Just call into the Altera support function, which has its own parameters,
	so the parameters passed in here are not used. */
	( void ) pxPort;

	uart0_print( ( char * ) pcString );
}
/*-----------------------------------------------------------*/

signed portBASE_TYPE xSerialPutChar( xComPortHandle pxPort, signed char cOutChar, TickType_t xBlockTime )
{
char cOutBytes[ 2 ];

	/* Just call into the Altera support function, which has its own parameters,
	so the parameters passed in here are not used. */
	( void ) pxPort;

	cOutBytes[ 0 ] = cOutChar;
	cOutBytes[ 1 ] = 0x00;
	uart0_print( cOutBytes );

	return pdPASS;
}
/*-----------------------------------------------------------*/

void vSerialClose(xComPortHandle xPort)
{
	/* Not supported as not required by the demo application. */
	( void ) xPort;
}
/*-----------------------------------------------------------*/