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/* *************************************
* Includes
* *************************************/
#include "Serial.h"
#include "Interrupts.h"
#include <psxsio.h>
#include <stdarg.h>
#include <stdio.h>
/* *************************************
* Defines
* *************************************/
#define SERIAL_BAUDRATE 115200
#define SERIAL_TX_RX_TIMEOUT 20000
#define SERIAL_RX_FIFO_EMPTY 0
#define SERIAL_TX_NOT_READY 0
#define SERIAL_PRINTF_INTERNAL_BUFFER_SIZE 256
/* **************************************
* Structs and enums *
* *************************************/
/* *************************************
* Local Variables
* *************************************/
/* *************************************
* Local Prototypes
* *************************************/
void SerialInit(void)
{
SIOStart(115200);
}
void SerialRead(uint8_t *ptrArray, size_t nBytes)
{
if (nBytes)
{
InterruptsDisableInt(INT_SOURCE_VBLANK);
do
{
while ( (SIOCheckInBuffer() == SERIAL_RX_FIFO_EMPTY)); // Wait for RX FIFO not empty
*(ptrArray++) = SIOReadByte();
} while (--nBytes);
InterruptsEnableInt(INT_SOURCE_VBLANK);
}
}
void SerialWrite(const void* ptrArray, size_t nBytes)
{
if (nBytes)
{
InterruptsDisableInt(INT_SOURCE_VBLANK);
do
{
while ( (SIOCheckOutBuffer() == SERIAL_TX_NOT_READY)); // Wait for TX FIFO empty.
SIOSendByte(*(uint8_t*)ptrArray++);
} while (--nBytes);
InterruptsEnableInt(INT_SOURCE_VBLANK);
}
else
{
}
}
#ifdef SERIAL_INTERFACE
void Serial_printf(const char* const str, ...)
{
va_list ap;
int result;
static char internal_buffer[SERIAL_PRINTF_INTERNAL_BUFFER_SIZE];
va_start(ap, str);
result = vsnprintf( internal_buffer,
SERIAL_PRINTF_INTERNAL_BUFFER_SIZE,
str,
ap );
SerialWrite(internal_buffer, result);
}
#endif // SERIAL_INTERFACE
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