Subversion Repositories openrisc_2011-10-31

/*-

 * Copyright (c) 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.

 *

 *      @(#)conf.h      8.5 (Berkeley) 1/9/95

 * $Id: conf.h,v 1.2 2001-09-27 12:02:00 chris Exp $

 */

#ifndef _SYS_CONF_H_

#define _SYS_CONF_H_

/*

 * Definitions of device driver entry switches

 */

struct buf;

struct proc;

struct tty;

struct uio;

struct vnode;

typedef int d_open_t __P((dev_t dev, int oflags, int devtype, struct proc *p));

typedef int d_close_t __P((dev_t dev, int fflag, int devtype, struct proc *p));

typedef void d_strategy_t __P((struct buf *bp));

typedef int d_ioctl_t __P((dev_t dev, int cmd, caddr_t data,

                           int fflag, struct proc *p));

typedef int d_dump_t __P((dev_t dev));

typedef int d_psize_t __P((dev_t dev));

typedef int d_read_t __P((dev_t dev, struct uio *uio, int ioflag));

typedef int d_write_t __P((dev_t dev, struct uio *uio, int ioflag));

typedef void d_stop_t __P((struct tty *tp, int rw));

typedef int d_reset_t __P((dev_t dev));

typedef struct tty *d_devtotty_t __P((dev_t dev));

typedef int d_select_t __P((dev_t dev, int which, struct proc *p));

typedef int d_mmap_t __P((dev_t dev, int offset, int nprot));

typedef int l_open_t __P((dev_t dev, struct tty *tp));

typedef int l_close_t __P((struct tty *tp, int flag));

typedef int l_read_t __P((struct tty *tp, struct uio *uio, int flag));

typedef int l_write_t __P((struct tty *tp, struct uio *uio, int flag));

typedef int l_ioctl_t __P((struct tty *tp, int cmd, caddr_t data,

                           int flag, struct proc *p));

typedef int l_rint_t __P((int c, struct tty *tp));

typedef int l_start_t __P((struct tty *tp));

typedef int l_modem_t __P((struct tty *tp, int flag));

/*

 * Block device switch table

 */

struct bdevsw {

        d_open_t        *d_open;

        d_close_t       *d_close;

        d_strategy_t    *d_strategy;

        d_ioctl_t       *d_ioctl;

        d_dump_t        *d_dump;

        d_psize_t       *d_psize;

        int             d_flags;

        char            *d_name;        /* name of the driver e.g. audio */

        struct cdevsw   *d_cdev;        /* cross pointer to the cdev */

        int             d_maj;          /* the major number we were assigned */

};

#ifdef KERNEL

extern struct bdevsw *bdevsw[];

#endif

/*

 * Character device switch table

 */

struct cdevsw {

        d_open_t        *d_open;

        d_close_t       *d_close;

        d_read_t        *d_read;

        d_write_t       *d_write;

        d_ioctl_t       *d_ioctl;

        d_stop_t        *d_stop;

        d_reset_t       *d_reset;       /* XXX not used */

        d_devtotty_t    *d_devtotty;

        d_select_t      *d_select;

        d_mmap_t        *d_mmap;

        d_strategy_t    *d_strategy;

        char            *d_name;        /* see above */

        struct bdevsw   *d_bdev;

        int             d_maj;

};

#ifdef KERNEL

extern struct cdevsw *cdevsw[];

#endif

/*

 * Line discipline switch table

 */

struct linesw {

        l_open_t        *l_open;

        l_close_t       *l_close;

        l_read_t        *l_read;

        l_write_t       *l_write;

        l_ioctl_t       *l_ioctl;

        l_rint_t        *l_rint;

        l_start_t       *l_start;

        l_modem_t       *l_modem;

};

#ifdef KERNEL

extern struct linesw linesw[];

extern int nlinesw;

int ldisc_register __P((int , struct linesw *));

void ldisc_deregister __P((int));

#define LDISC_LOAD      -1              /* Loadable line discipline */

#endif

/*

 * Swap device table

 */

struct swdevt {

        dev_t   sw_dev;

        int     sw_flags;

        int     sw_nblks;

        struct  vnode *sw_vp;

};

#define SW_FREED        0x01

#define SW_SEQUENTIAL   0x02

#define sw_freed        sw_flags        /* XXX compat */

#ifdef KERNEL

d_open_t        noopen;

d_close_t       noclose;

d_read_t        noread;

d_write_t       nowrite;

d_ioctl_t       noioctl;

d_stop_t        nostop;

d_reset_t       noreset;

d_devtotty_t    nodevtotty;

d_select_t      noselect;

d_mmap_t        nommap;

/* Bogus defines for compatibility. */

#define noioc           noioctl

#define nostrat         nostrategy

#define zerosize        nopsize

/*

 * XXX d_strategy seems to be unused for cdevs that aren't associated with

 * bdevs and called without checking for it being non-NULL for bdevs.

 */

#define nostrategy      ((d_strategy_t *)NULL)

d_dump_t        nodump;

/*

 * nopsize is little used, so not worth having dummy functions for.

 */

#define nopsize ((d_psize_t *)NULL)

d_open_t        nullopen;

d_close_t       nullclose;

#define nullstop nostop         /* one void return is as good as another */

#define nullreset noreset       /* one unused function is as good as another */

d_open_t        nxopen;

d_close_t       nxclose;

d_read_t        nxread;

d_write_t       nxwrite;

d_ioctl_t       nxioctl;

#define nxstop  nostop          /* one void return is as good as another */

#define nxreset noreset         /* one unused function is as good as another */

#define nxdevtotty nodevtotty   /* one NULL return is as good as another */

d_select_t      nxselect;

#define nxmmap  nommap          /* one -1 return is as good as another */

#define nxstrategy nostrategy   /* one NULL value is as good as another */

d_dump_t        nxdump;

#define nxpsize nopsize         /* one NULL value is as good as another */

d_read_t        rawread;

d_write_t       rawwrite;

l_read_t        l_noread;

l_write_t       l_nowrite;

int     bdevsw_add __P((dev_t *descrip,struct bdevsw *new,struct bdevsw **old));

int     cdevsw_add __P((dev_t *descrip,struct cdevsw *new,struct cdevsw **old));

void    cdevsw_make __P((struct bdevsw *from));

void    bdevsw_add_generic __P((int bdev, int cdev, struct bdevsw *bdevsw));

dev_t   chrtoblk __P((dev_t dev));

int     isdisk __P((dev_t dev, int type));

int     iskmemdev __P((dev_t dev));

int     iszerodev __P((dev_t dev));

void    setconf __P((void));

#endif /* KERNEL */

#include <machine/conf.h>

#endif /* !_SYS_CONF_H_ */