www.pudn.com > canbus.rar > spi_cmd.h

/* 
 * spi_cmd.h 
 * Define the constant for the CAN's spi command interface 
 * Date	: 2004/04/27 
 * By	: Zhang Jing 
 */ 
 
#ifndef	SPI_CMD_H 
#define	SPI_CMD_H 
 
#ifdef	SPI_CMD_FLAG 
	#define	SPI_CMD_EXT 
#else 
	#define	SPI_CMD_EXT	extern 
#endif 
 
//#include 	"2410addr.h" 
//#include 	"2410lib.h" 
#include 	"def.h" 
 
// Define the command constant 
#define	SPI_CMD_READ			(0x03) 
#define	SPI_CMD_WRITE			(0x02) 
 
#define	SPI_CMD_RTS			(0x80) 
#define	RTS_TXB0			(0x1) 
#define	RTS_TXB1			(0x2) 
#define	RTS_TXB2			(0x4) 
 
#define	SPI_CMD_READSTA			(0xa0) 
#define	SPI_CMD_BITMOD			(0x05) 
#define	SPI_CMD_RESET			(0xc0) 
 
// Define the spi module connected to can bus 
#define	CAN_SPI_MODULE			S3C2410_SPI0 
// Define the GPIO port and pin for chip select 
#define	CAN_GPIO_PORT			MX1_GPIO_PC 
#define	CAN_GPIO_PIN			15 
// Define the value of unused argument 
#define	ARG_UNUSED			0 
 
// Function prototypes 
SPI_CMD_EXT unsigned char CAN_SPI_CMD(unsigned char cmd, unsigned long addr, unsigned char arg1, unsigned char arg2); 
 
#endif