/************************************************\*	by threewater<threewater@up-tech.com>	**		2003.12.18			**						*\***********************************************/#include <stdio.h>#include <fcntl.h>#include <string.h>#include <sys/ioctl.h>#include "hardware.h"#include "zlg7289.h"#include "s3c44b0-spi.h"#define SPI_DEV		"/dev/spi/0"static int spi_fd = -1;#define Zlg7289_Reset()	do{write_Zlg7289(ZLG7289_CMD_RST);Delay(20);}while(0)static void Delay(int t){	int i;	for(;t>0;t--)		for(i=0;i<400;i++);}static void write_Zlg7289(int cmd){	spi_rw data;	data.buffer=(char*)&cmd;	data.size=1;        if(ioctl(spi_fd, SPI_IOCTRL_WFORZLG7289, &data)!=0){            printf("Error IOCTRL, please check your spi driver in kernel!\n");			close(spi_fd);                                                                  exit(1);        }}static void mwrite_Zlg7289(char* buffer, int size){	spi_rw data;	data.buffer=buffer;	data.size=size;        if(ioctl(spi_fd, SPI_IOCTRL_WFORZLG7289, &data)!=0){                printf("Error IOCTRL, please check your spi driver in kernel!\n");                close(spi_fd);                exit(1);        }}static void Zlg7289_showStr(char* str){	int i;	unsigned int showdata;	char buffer[20],*p=str;	if(strlen(str)>8)	//the string length must below 8.		str[8]=0;	sscanf(str, "%x", &showdata);	printf("showdata=%x\n",showdata);	for(i=0;i<8 && *p!=0 ;i++){		buffer[i*2]=(ZLG7289_CMD_DATA1|i); //		buffer[i*2+1]=(showdata&0xf);		showdata>>=4;		p++;	}	for(;i<8;i++){		buffer[i*2]=(ZLG7289_CMD_DATA0|i);		buffer[i*2+1]=0xf;	//don't show any word	}		mwrite_Zlg7289(buffer, 16);}int main(int argc, char **argv){	float v;	int value;	if((spi_fd=open(SPI_DEV, O_NONBLOCK))<0){		printf("Error opening %s spi device\n", SPI_DEV);		return 1;	}		Zlg7289_Reset();	if(argc==1){		write_Zlg7289(ZLG7289_CMD_TEST);		printf("Zlg7289 in test Mode\n");		goto end;	}	Zlg7289_showStr(argv[1]);end:	close(spi_fd);                                                         	return 0;}