config_files.cpp

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#include <iostream>
#include <string>
#include <ctype.h>
#include "config_files.h"

using namespace std;

const bool _VERBOSE_ = false;

int CConfigFiles::ihxOpen(string fileName)
{

  ihxFile = fopen(fileName.c_str(), "r");
  if(ihxFile == NULL){
    std::cerr << "FileIO Error " << fileName << " Not Found" << std::endl;
    return -1; // Error codes from USBP library.
  }

  return 0;
}


int CConfigFiles::ihxRead(byte* b)
{
  char c;
  int i, length;
  int input, data, check;
  byte sum;

  if(ihxFile == NULL){
    std::cerr << "Hex File Not Open!!" << std::endl;
    return -1;
  }

  c = getc(ihxFile);
  if(c != ':'){
    std::cerr << "ihxRead: Hex file missing start colon! found "<< c << std::endl;
    return -1;
  }

  input = fscanf(ihxFile, "%2X%4X%2X", &ihxLen, &ihxAddress, &ihxType);
  if(input != 3){
    std::cerr << "ihxRead: Preamble Error" << std::endl;
    return -1;
  }

  sum = ihxLen + ((ihxAddress >> 8) & 0xFF) + (ihxAddress & 0xFF) + ihxType;

  length = ihxLen;
  if(length > MAX_IHX_RECORD_LEN) {
    std::cerr << "ihxRead: Recorod too long " << length << " max " << MAX_IHX_RECORD_LEN << std::endl;
    return -1;
  }

  for(i=0; i<length; i++){
    input = fscanf(ihxFile, "%2X", &data);

    if(input != 1){
                std::cerr << "ihxRead: Incomplete Line" << std::endl;
      return -1;
    }

    b[i] = data;
    sum += data;
  }

  input = fscanf(ihxFile, "%2X\n", &check);
  sum = 0x100 - sum;

  if((input != 1) || (check != sum)){
    std::cerr << "ihxRead: Checksum Error, read " << check << 
      " calc'd " << sum << std::endl;
    return -1;
  }

  return 0;
} 


int CConfigFiles::ihxClose()
{

  if(ihxFile){
    fclose(ihxFile);
  }

  ihxFile = NULL;

  return 0;
}


void hexDump(byte *b, int n)
{
  int i, j;

  printf("\nDumping %d bytes\n", n);
  for(i=0; i<n; i+=16){

    printf("%08x:   ", i);

    for(j=0; j<16; j++){
      if((i+j) >=(n)) 
        printf("   ");
      else
        printf("%02X ", b[i+j]);
    }

    printf("   ");

    for(j=0; j<16; j++){
      if((i+j) >=(n)) 
        printf("   ");
      else
        printf("%c", (isalnum(b[i+j]))?b[i+j]:'.');
    }

    printf("\n");
  }
  
}


int CConfigFiles::xbtOpen(string fileName)
{
  static const int sz = 78;
  int n;
  byte b[sz];

  xbtFile = fopen(fileName.c_str(), "rb");
  if(xbtFile == NULL){
    cerr << "FileIO Error " << fileName << " Not Found" << endl;
    return -1;
  }

  // Read the first 72 bytes, Header information

  n = fread(b, 1, sz, xbtFile);
  
  if(_VERBOSE_)
    hexDump(b,n);

  xbtTotalBytes = n;

  return 0;
}


int CConfigFiles::xbtRead(byte *b, int& N)
{

  N = fread(b, 1, N, xbtFile);

  if(_VERBOSE_){
    hexDump(b,N);
  
    if(N == 0)
      printf("Done, No More Bytes to Read??\n");
  }

  xbtTotalBytes += N;

  return 0;
}


int CConfigFiles::xbtClose()
{

  if(_VERBOSE_)
    printf("Total Number of Bytes Read %d, Total Send to FPGA %d\n",
           xbtTotalBytes, xbtTotalBytes-78);
  
  if(xbtFile){
    fclose(xbtFile);
  }

  xbtFile = NULL;

  return 0;

}

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