stamp for 4bsd

[unix-history] / usr / src / sys / vax / stand / conf.c

/*      conf.c  4.1     %G%     */

#include "../h/param.h"
#include "../h/inode.h"
#include "../h/pte.h"
#include "../h/mba.h"
#include "saio.h"

devread(io)
register struct iob *io;
{

       return( (*devsw[io->i_ino.i_dev].dv_strategy)(io,READ) );
}

devwrite(io)
register struct iob *io;
{
       return( (*devsw[io->i_ino.i_dev].dv_strategy)(io, WRITE) );
}

devopen(io)
register struct iob *io;
{
       (*devsw[io->i_ino.i_dev].dv_open)(io);
}

devclose(io)
register struct iob *io;
{
       (*devsw[io->i_ino.i_dev].dv_close)(io);
}

nullsys()
{ ; }

int     nullsys();
int     hpstrategy(), hpopen();
int     htstrategy(), htopen(), htclose();
int     upstrategy(), upopen();

struct devsw devsw[] = {
       "hp",   hpstrategy,     hpopen,         nullsys,
       "ht",   htstrategy,     htopen,         htclose,
       "up",   upstrategy,     upopen,         nullsys,
       0,0,0,0
};

int mbanum[] = {        /* mba number of major device */
       0,              /* disk */
       1,              /* tape */
       -1,             /* unused */
};

int *mbaloc[] = {       /* physical location of mba */
       (int *)PHYSMBA0,
       (int *)PHYSMBA1,
};