diff options
Diffstat (limited to 'sys/kern/kern_physio.c')
| -rw-r--r-- | sys/kern/kern_physio.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/sys/kern/kern_physio.c b/sys/kern/kern_physio.c new file mode 100644 index 0000000..1eaae35 --- /dev/null +++ b/sys/kern/kern_physio.c @@ -0,0 +1,93 @@ +/*- + * Copyright (c) 1982, 1986, 1990, 1993 + * The Regents of the University of California. All rights reserved. + * (c) UNIX System Laboratories, Inc. + * All or some portions of this file are derived from material licensed + * to the University of California by American Telephone and Telegraph + * Co. or Unix System Laboratories, Inc. and are reproduced herein with + * the permission of UNIX System Laboratories, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * from: @(#)kern_physio.c 8.1 (Berkeley) 6/10/93 + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/buf.h> +#include <sys/conf.h> +#include <sys/proc.h> + +physio(a1, a2, a3, a4, a5, a6) + int (*a1)(); + struct buf *a2; + dev_t a3; + int a4; + u_int (*a5)(); + struct uio *a6; +{ + + /* + * Body deleted. + */ + return (EIO); +} + +u_int +minphys(a1) + struct buf *a1; +{ + + /* + * Body deleted. + */ + return (0); +} + +/* + * Do a read on a device for a user process. + */ +rawread(dev, uio) + dev_t dev; + struct uio *uio; +{ + return (physio(cdevsw[major(dev)].d_strategy, (struct buf *)NULL, + dev, B_READ, minphys, uio)); +} + +/* + * Do a write on a device for a user process. + */ +rawwrite(dev, uio) + dev_t dev; + struct uio *uio; +{ + return (physio(cdevsw[major(dev)].d_strategy, (struct buf *)NULL, + dev, B_WRITE, minphys, uio)); +} |
