4.3BSD-UWisc/src/sys/stand/confhpup.c

/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *	@(#)confhpup.c	7.1 (Berkeley) 6/5/86
 */
#ifndef lint
static char rcs_id[] = {"$Header: confhpup.c,v 2.1 86/08/13 10:47:36 root Exp $"};
#endif not lint
/*
 * RCS Info
 *	$Locker: root $
 */

#include "../machine/pte.h"

#include "../h/param.h"
#include "../h/time.h"
#include "../h/vfs.h"
#include "../h/vnode.h"
#include "../ufs/inode.h"
#include "../ufs/fs.h"
#include "saio.h"

devread(io)
	register struct iob *io;
{
	int cc;

	io->i_flgs |= F_RDDATA;
	io->i_error = 0;
	cc = (*devsw[io->i_ino.i_dev].dv_strategy)(io, READ);
	io->i_flgs &= ~F_TYPEMASK;
	return (cc);
}

devwrite(io)
	register struct iob *io;
{
	int cc;

	io->i_flgs |= F_WRDATA;
	io->i_error = 0;
	cc = (*devsw[io->i_ino.i_dev].dv_strategy)(io, WRITE);
	io->i_flgs &= ~F_TYPEMASK;
	return (cc);
}

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);
}

devioctl(io, cmd, arg)
	register struct iob *io;
	int cmd;
	caddr_t arg;
{

	return ((*devsw[io->i_ino.i_dev].dv_ioctl)(io, cmd, arg));
}

/*ARGSUSED*/
nullsys(io)
	struct iob *io;
{

	;
}

/*ARGSUSED*/
nullioctl(io, cmd, arg)
	struct iob *io;
	int cmd;
	caddr_t arg;
{

	return (ECMD);
}

int	nullsys(), nullioctl();
int	hpstrategy(), hpopen(), hpioctl();
int	upstrategy(), upopen(), upioctl();

struct devsw devsw[] = {
	{ "hp",	hpstrategy,	hpopen,		nullsys,	hpioctl },
	{ "up",	upstrategy,	upopen,		nullsys,	upioctl },
	{ 0, 0, 0, 0, 0 }
};