#include "bsp.h"
data_common data_common1;
FIL fp;			/* Pointer to the blank file object */
FATFS fs;
UINT btw;			/* Number of bytes to write */
UINT bws;
u32 send_pos=0;
DIR DirInf;
FILINFO FileInf;
/*
功能：TF卡数据写入
参数：fname 
      dat
      len
返回值：无

*/
void FATFS_WriteFile(char *fname,char *dat,u16 len)  //写数据到SD卡
{
	UINT br;
  char name[20];
  sprintf(name,"%s%s",fname,".txt");
  f_mount(0,&fs);
  f_open (&fp,fname,FA_READ|FA_WRITE|FA_OPEN_ALWAYS);
	f_lseek(&fp,f_size(&fp));  //移动到文件的末尾--追加数据
	f_write(&fp,dat,len,&br);
  f_close(&fp); 
  f_mount(0,NULL);
}

/*
功能：TF卡数据写入 时间、电压、经纬度、海拔、传感器数据
参数：fname 
      dat
      len
返回值：无

*/
FRESULT Data_Write_TF(void)//,char *dat,u16 len
{
  FRESULT res;
u8 i=0;	
  char name[10]="\0";
  
  f_mount(0,&fs);
  res=f_open(&fp,name,FA_READ | FA_WRITE | FA_OPEN_ALWAYS );//0:/
  if(res!=FR_OK)  //打开失败
 {
   i=0;
   while((res!=FR_OK)&(i<100))
   {
    i++;
    f_close(&fp);
    f_mount(0,NULL);
    f_mount(0,&fs);
    res=f_open(&fp,name,FA_READ | FA_WRITE | FA_OPEN_ALWAYS );//0:/
   }
    if(i>98)return FR_NO_PATH ;
   
 }
  f_lseek (&fp,f_size(&fp));
  f_write(&fp,data_common1.Pack_data,strlen(data_common1.Pack_data),&bws);
  f_write(&fp,"\r\n",2,&bws);
  f_close(&fp);
 
  return FR_OK;
}

/*************文件删除*******************************/
FRESULT Fil_delete(char *names)
{
  FRESULT result;
  char namebuff[10]="\0";
  sprintf(namebuff,"%s",names);
  f_mount(0,&fs);
  result = f_unlink(namebuff);
  f_close(&fp);
  f_mount(0,NULL);
  return result;
}
//读取文件的大小byte
u32 txt_size_read(char *fname)
{
 // u8 i=0;
  FRESULT res;
  u32 txt_size;
  char name[20];
  sprintf(name,"%s%s",fname,".txt");
  res=f_mount(0,&fs);
  res=f_open(&fp,"APP.bin",FA_READ);//0:/
  if(res!=FR_OK)  //打开失败
  {
   return FR_NO_FILE;
  }
  txt_size=f_size(&fp);
  res=f_close(&fp);
  f_mount(0,NULL);
  return txt_size;
}
/*
功能：TF卡数据读取
参数：start_pos  
      len
返回值：暂时测试，用串口1打印 后续需要返回读取的数据

*/
void  FATFS_Read_TF(char *fname,u32 start_pos,u32 len)
{
  //u16 time1=0;
  FRESULT res;
  u32 tf_sendpos=0;
  u8 times;
  u32 i,lens_quotient,len_remainder;//商，余数
  uint8_t Tf_Read_Buff[max_transmission+1];
  lens_quotient=len/max_transmission;
  len_remainder=len%max_transmission;
  memset(Tf_Read_Buff,0,sizeof(Tf_Read_Buff));
  res=f_mount(0,&fs); 
  res=f_open(&fp,fname,FA_READ);
  times=0;
  while((res!=FR_OK)&(times<100))
  {
    res=f_close(&fp);
    res=f_mount(0,&fs); 
    res=f_open(&fp,fname,FA_READ);
    times++;
    if(times==100)return;
  }
  f_lseek(&fp, start_pos+tf_sendpos); 
  for(i=0;i<lens_quotient;i++)//发送大数据max_transmission字节
  {                     
    res=f_read(&fp,Tf_Read_Buff,max_transmission,&bws);    
    FLASH_WriteWord(APP_ADDR+(i*max_transmission),Tf_Read_Buff,max_transmission);
  }
  memset(Tf_Read_Buff,0,sizeof(Tf_Read_Buff));
  f_read(&fp,Tf_Read_Buff,len_remainder,&bws);//发送余数字节
  FLASH_WriteWord(APP_ADDR+(i*max_transmission),Tf_Read_Buff,len_remainder);
  res=f_close(&fp);
  f_mount(0,NULL);
  
}

u8 App_check(void)
{
  uint8_t buff[10];
  f_mount(0,&fs); 
  f_open(&fp,"AAP.bin",FA_READ);
  f_read(&fp,buff,10,&bws); 
  if(((*(vu32*)(buff+4))&0xFF000000)==0x08000000)//判断是否为0X08XXXXXX.
  {
    return 0;
  }
  return 1;  
}