setparam.c

一个uclinux下进行网络数据处理,及串口读取,CGI配置

#include "setparam.h"

int erase_sector(unsigned long flash_addr){
    *(volatile unsigned short *)(flash_addr&0xfffff000|0xaaa)=0xaaaa;
    *(volatile unsigned short *)(flash_addr&0xfffff000|0x554)=0x5555;
    *(volatile unsigned short *)(flash_addr&0xfffff000|0xaaa)=0x8080;
    *(volatile unsigned short *)(flash_addr&0xfffff000|0xaaa)=0xaaaa;
    *(volatile unsigned short *)(flash_addr&0xfffff000|0x554)=0x5555;
    *(volatile unsigned short *)(flash_addr)=0x3030;
    printf("flash secter erased!\n");
}

int write_word(unsigned long flash_addr,unsigned short value){
    unsigned short temp_w;
    unsigned long i;

    //value = strtoul(input_argv3,end,16);
    *(volatile unsigned short *)(flash_addr&0xfffff000|0xaaa)=0xaaaa;
    *(volatile unsigned short *)(flash_addr&0xfffff000|0x554)=0x5555;
    *(volatile unsigned short *)(flash_addr&0xfffff000|0xaaa)=0xa0a0;
    *(volatile unsigned short *)(flash_addr)=value;

    temp_w=*(volatile unsigned short *)flash_addr;
    i=0;
    while(temp_w != value){
        temp_w=*(volatile unsigned short *)flash_addr;
        i++;
        if(i==0xfff){
            printf("err :%08X ",flash_addr);
            printf("write = %04X ",value);
            printf("read = %04X \n",temp_w);
            return 1;
        }
    }
    return 0;
}

//////////////////////////////////////////////////////////////////////////////
//file operation(flat FS)
long int getfilelength(char *filename){
    FILE *fp;
    long int i;
    int j;
    fp=fopen(filename,"r");
    fseek(fp,0L,2);
    i=ftell(fp);
    j=fclose(fp);
    return(i);
}

///////////////////////////////////////////////////////////////////////////
//HEAD:filename(32bytes)+filelength(4bytes)+filecontents(filelength)
///////////////////////////////////////////////////////////////////////////
int write_file_to_flash(char * filename,unsigned long addr){
    FILE *fp;
    unsigned long i,j,len;
    unsigned short value_w,temp_w;
    unsigned char *p;
    char fname[32];
    bzero(fname,32);
    strncpy(fname,filename,32);
    p=(unsigned char *)&len;
    //////////////////////////////////////////////////////////////////////////
    //write filename
    for(i=0;i<32;i+=2){
        value_w=*(unsigned short *)(fname+i);
        if(write_word(addr,value_w)!=0)
            return 2;
        addr+=2;
    }
    //////////////////////////////////////////////////////////////////////////
    //write file length
    len=getfilelength(filename);
    printf("filelength=0x%08X\n",len);
    value_w=*(unsigned short *)p;
    if(write_word(addr,value_w)!=0)
        return 2;
    addr+=2;
    value_w=*(unsigned short *)(p+2);
    if(write_word(addr,value_w)!=0)
        return 2;
    addr+=2;
    //////////////////////////////////////////////////////////////////////////
    fp=fopen(filename,"r");

    if(fp==NULL){
        printf("open file error");
        return 1;
    }
    for(;;){
        j=fread(&value_w,sizeof(unsigned short),1,fp);
        //value_w = exchangew(value_w);
        if(j!=1){
            if(ferror(fp) != 0)
                printf("over or wrong\n");
            else
                printf("File write successfully!\n");
            break;
        }
        if(write_word(addr,value_w)!=0)
            return 2;

        addr+=2;
    }
    if (len%2==1)
    {
       value_w=0x0AFF;
       if (write_word(addr,value_w)!=0) return 2;
    }
    fclose(fp);
    return 0;
}

int main()
{
 int i;
 int pid;
 htmlinput_struct htmlinputs[100];
 int htmlinputcount;
 commparam_struct commparam;
 unsigned long ipaddr,commaddr;
// html_message("success","you have successfully set the parameters!");

 htmlinputcount=get_CGI_request(htmlinputs);
 if (!htmlinputcount)
 {
   html_message("error","set parameters error!");
   exit(1);
 }
 else
 {
   for(i=0;i<htmlinputcount;i++)
   {
      if (!strcmp(htmlinputs[i].name,"localip"))
        strcpy(commparam.localip,htmlinputs[i].value);
      if (!strcmp(htmlinputs[i].name,"netmask"))
        strcpy(commparam.netmask,htmlinputs[i].value);      
      if (!strcmp(htmlinputs[i].name,"serverip"))
        strcpy(commparam.serverip,htmlinputs[i].value);
      if (!strcmp(htmlinputs[i].name,"serverport"))
        strcpy(commparam.serverport,htmlinputs[i].value);
      if (!strcmp(htmlinputs[i].name,"baudrate"))
        strcpy(commparam.baudrate,htmlinputs[i].value);
      if (!strcmp(htmlinputs[i].name,"parity"))
        strcpy(commparam.parity,htmlinputs[i].value);
      if (!strcmp(htmlinputs[i].name,"databits"))
        strcpy(commparam.databits,htmlinputs[i].value);
      if (!strcmp(htmlinputs[i].name,"stopbits"))
        strcpy(commparam.stopbits,htmlinputs[i].value);
      if (!strcmp(htmlinputs[i].name,"handshaking"))
        strcpy(commparam.handshaking,htmlinputs[i].value);
   }
   if (!strcmp(commparam.serverport,""))
   {
      html_message("error","the serverport should not be empty!");
      exit(1);
   }
 }
  print_file("/etc/config/start","/etc/config/param.conf",commparam);  
  //save the ip data to 0xffef0000
  ipaddr = 0xffef0000;
  commaddr = 0xfff00000;
  erase_sector(ipaddr);
  erase_sector(commaddr);
  sleep(6);
  write_file_to_flash("/etc/config/start",ipaddr);  
  write_file_to_flash("/etc/config/param.conf",commaddr);
//  html_message("success","you have successfully set the parameters!");
/*
  if ((pid=vfork())<0)
  {
     printf("vfork error\n");
  }
  else if (pid==0)
  {
    execl("/bin/reboot");
    exit(0);
  }
  else
  {
    // html_message("success","you have successfully set the parameters!");	
  }
 // html_message("success","you have successfully set the parameters!");
// exit(0);*/
}