LINUX/archmnib.c

/*
 *      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.
 *
 *  Copyright 2005      Tim Schürmann
*/

#ifdef SAVE_RCSID
static char *rcsid =
    "@(#) $Id: archmnib.c,v 1.4 2006/03/20 11:26:00 trikalio Exp $";
#endif

#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <unistd.h>

#include "opencbm.h"
#include "cbm_module.h"

#include <linux/errno.h>  /* error codes */


/*linux functions needed by parallel burst */

__u_char cbmarch_parallel_burst_read(CBM_FILE f)
{
        return ioctl(f, CBMCTRL_PARBURST_READ);
}

void cbmarch_parallel_burst_write(CBM_FILE f, __u_char c)
{
        ioctl(f, CBMCTRL_PARBURST_WRITE, c);
}

int cbmarch_parallel_burst_read_track(CBM_FILE f, __u_char *buffer, unsigned int length)
{
        int retval;

        PARBURST_RW_VALUE mv;
        mv.buffer=buffer;
        mv.length=length; /* only needed in write_track */
        retval=ioctl(f, CBMCTRL_PARBURST_READ_TRACK, &mv);  /* we have to catch retval to check on EFAULT */
        if(retval==(-EFAULT)) {printf("cbm4linux: cbm.c: cbm_parallel_burst_read_track: ioctl returned -EFAULT"); return 0;}
        return retval;
}

int cbmarch_parallel_burst_write_track(CBM_FILE f,  __u_char *buffer, unsigned int length)
{
        int retval;
        
        PARBURST_RW_VALUE mv;
        mv.buffer=buffer;
        mv.length=length;
        retval=ioctl(f, CBMCTRL_PARBURST_WRITE_TRACK, &mv);
        if(retval==(-EFAULT)) {printf("cbm4linux: cbm.c: cbm_parallel_burst_write_track: ioctl returned -EFAULT"); return 0;}
        return retval;
}

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