isa_device.h

早期freebsd实现

/*-
 * Copyright (c) 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * 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.
 *
 *	@(#)isa_device.h	8.1 (Berkeley) 6/11/93
 */

/*
 * ISA Bus Autoconfiguration
 */

/*
 * Per device structure.
 */
struct isa_device {
	struct	isa_driver *id_driver;
	short	id_iobase;	/* base i/o address */
	short	id_irq;		/* interrupt request */
	short	id_drq;		/* DMA request */
	caddr_t id_maddr;	/* physical i/o memory address on bus (if any)*/
	int	id_msize;	/* size of i/o memory */
	int	(*id_intr)();	/* interrupt interface routine */
	int	id_unit;	/* unit number */
	int	id_scsiid;	/* scsi id if needed */
	int	id_alive;	/* device is present */
};

/*
 * Per-driver structure.
 *
 * Each device driver defines entries for a set of routines
 * as well as an array of types which are acceptable to it.
 * These are used at boot time by the configuration program.
 */
struct isa_driver {
	int	(*probe)();		/* test whether device is present */
	int	(*attach)();		/* setup driver for a device */
	char	*name;			/* device name */
};

extern struct isa_device isa_devtab_bio[], isa_devtab_tty[], isa_devtab_net[],
		isa_devtab_null[];