uart.h

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#ifndef	_VGUART_H
#define _VGUART_H

/***********************************************
	Data types
************************************************/
#define vgNULL	0L

#define vgTRUE	1
#define vgFALSE	0
typedef short int vgBOOL;

typedef signed char	S8;
typedef signed short int S16;
typedef signed long	S32;

typedef unsigned char	U8;
typedef unsigned short int U16;
typedef unsigned long	U32;

/***********************************************
 * Uart Functions
 * *********************************************/
 
// UART DATA BIT
#define DATABIT7	0x00
#define DATABIT8	0x01

// UART STOP BIT
#define STOPBIT1	0x00
#define STOPBIT2	0x02

// UART PARITY BIT
#define PARITYNONE	0x00
#define PARITYODD	0x0c
#define PARITYEVEN	0x08

// Clock Select
#define INTERCLOCK	0x00
#define EXCLOCK		0x10

// Receive Interrupt
#define RINTDS		0x00
#define RINTEN		0x20

// Send Break
#define NOSENDBK	0x00
#define SDNBK		0x40

// Loop Back Test
#define LOOPNOR		0x00
#define LOOPEN		0x80

// Uart Enable
#define DSUART		0x000
#define ENUART		0x100

// UART COMMUNICATION VELOCITY(bps)
#define BPS1200		1200
#define BPS2400		2400
#define BPS4800		4800
#define BPS9600		9600
#define BPS19200	19200
#define BPS38400	38400
#define BPS57600	57600
#define BPS115200	115200

// Serial Clock
#define CLOCK		3686400	//3.6864MHz
//#define CLOCK	80000000

#define UART_CH0_ON()	writew(REG_UCON0, readw(REG_UCON0) | 0x100)
#define UART_CH0_OFF()	writew(REG_UCON0, readw(REG_UCON0) & 0xfeff)
#define UART_CH1_ON()	writew(REG_UCON1, readw(REG_UCON1) | 0x100)
#define UART_CH1_OFF()	writew(REG_UCON1, readw(REG_UCON1) & 0xfef)

U8 UartIsRxCh0(void);
U8 UartIsRxCh1(void);
U8 UartIsTxCh0(void);
U8 UartIsTxCh1(void);
U8 UartRxCharCh0();
U8 UartRxCharCh1();
void UartTxCharCh0(U8 ch);
void UartTxCharCh1(U8 ch);
void UartTxStringCh0(U8* string);
void UartTxStringCh1(U8* string);

void UartPrintfCh0( const char* const message, ... );
void UartPrintfCh1( const char* const message, ... );

void UartConfigCh0(U32 config_data, U32 BaudRate);
void UartConfigCh1(U32 config_data, U32 BaudRate);

#endif	/* _VGUART_H */