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/***************************************************************************
slave_write_from_file.c
-------------------
Example program which uses gpib c library. I use this with
master_read_to_file in order to test read/write speed between two boards.
Unlike slave_read_to_file, this program does not use ibwrtf() because I want
to separate gpib transfer speed and disk io speed in my benchmarking.
copyright : (C) 2003 by Frank Mori Hess
email : fmhess@users.sourceforge.net
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#define _GNU_SOURCE
#include <stdio.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
#include "gpib/ib.h"
char *myProg;
void usage(int brief) {
fprintf(stderr,"Usage: %s [-h] [-b <board index>] <file name>\n", myProg);
if (brief) exit(1);
fprintf(stderr," Default <board index> is 0\n");
exit(0);
}
int main( int argc, char *argv[] )
{
int board = 0;
int eos_mode = 0;
char *file_path;
int status;
int retval;
FILE *filep;
struct stat file_stats;
uint8_t *buffer;
unsigned long buffer_length;
int c;
myProg = argv[0];
while ((c = getopt (argc, argv, "b:h")) != -1)
{
switch (c)
{
case 'b': board = atoi(optarg); break;
case 'h': usage(0); break;
default: usage(1);
}
}
if (optind == argc)
{
fprintf( stderr, "Must provide file path as argument\n" );
usage(0);
}
file_path = argv[ optind ];
filep = fopen( file_path, "r" );
if( filep == NULL )
{
perror( "fopen()");
return -1;
}
retval = fstat( fileno( filep ), &file_stats );
if( retval < 0 )
{
perror( "fstat()");
return -1;
}
buffer_length = file_stats.st_size;
buffer = malloc( buffer_length );
if( buffer == NULL )
{
perror( "malloc()");
return -1;
}
if( fread( buffer, 1, buffer_length, filep ) != buffer_length )
{
perror( "fread()" );
return -1;
}
fclose( filep );
status = ibeos( board, eos_mode );
if( status & ERR )
{
fprintf( stderr, "ibeos() failed\n" );
fprintf( stderr, "%s\n", gpib_error_string( ThreadIberr() ) );
return -1;
}
status = ibtmo( board, TNONE );
if( status & ERR )
{
fprintf( stderr, "ibtmo() failed\n" );
fprintf( stderr, "%s\n", gpib_error_string( ThreadIberr() ) );
return -1;
}
status = ibconfig( board, IbcTIMING, T1_DELAY_350ns );
if( status & ERR )
{
fprintf( stderr, "ibconfig() failed\n" );
fprintf( stderr, "%s\n", gpib_error_string( ThreadIberr() ) );
return -1;
}
status = ibwait( board, TACS );
if( ( status & TACS ) == 0 )
{
fprintf( stderr, "ibwait() for TACS failed\n" );
fprintf( stderr, "%s\n", gpib_error_string( ThreadIberr() ) );
return -1;
}
status = ibwrt( board, buffer, buffer_length );
if( status & ERR )
{
fprintf( stderr, "ibwrt() failed\n" );
fprintf( stderr, "%s\n", gpib_error_string( ThreadIberr() ) );
return -1;
}
free( buffer );
return 0;
}
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