test.c

pc104接口在arm9200开发板上的驱动程序

#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/shm.h>
#include <sys/ipc.h>
#include <sys/io.h>
#include <time.h>
#include <sys/time.h>
#include <fcntl.h>
#include <errno.h>
//#define debug

char* dev[2]={"/dev/zt_io-0","/dev/zt_io-1"};

void outport(int fd,long addr,long v){
long uldata[2];
  uldata[0]=addr;uldata[1]=v;
  write(fd,uldata,16);
}

long inport(int fd,long addr){
long uldata[2];
  uldata[0]=addr;uldata[1]=0;
  read(fd,uldata,16);
  return uldata[1];
}

void outportb(int fd,long addr,long v){
long uldata[2];
  uldata[0]=addr;uldata[1]=v;
  write(fd,uldata,8);
}

long inportb(int fd,long addr){
long uldata[2];
  uldata[0]=addr;uldata[1]=0;
  read(fd,uldata,8);
  return uldata[1];
}

int main(){
  int fd,adfd;
  unsigned long uldata[3];
  unsigned short td[409600];
  unsigned long abc=0,abc1=0,readnum,allnum,max,min,v,ed;
  int i=0,j=0,k=0,devnum=1;
  char ch=1;long retv=0;
  unsigned long maxdata=8192,numpertime=4096,fenpin=39;
  adfd=open(dev[0],O_RDWR);
  if(adfd<=0){printf("open 0 error!:%s\n",strerror(errno));return 0;}
  while(1){
    uldata[1]=0;
    max=0;min=65535;v=0;
    uldata[0]=10,uldata[1]=0x2000;
    uldata[0]=2,uldata[1]=0;
    if((retv=read(adfd,td,409600*2))<0)printf("read 8192 false!%ld\n",retv);
    if(retv>0){
    for(i=0;i<4096;i++){
      uldata[0]=2,uldata[1]=0;
      v+=td[i];
      max=td[i]<max?max:td[i];
      min=td[i]>min?min:td[i];
//      printf("%x\n",td[i]);
    }
    v/=4096;
    printf("%6x,%6x,%6x,%6x,%7ld,%5x\n",v,(max-min),max,min,retv,j+=1);
    }
  }
  close(adfd);
  return 0;
}