FreeBSD-5.3/lib/libio/io.h

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/*-
 * Copyright (c) 1998 Doug Rabson
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
 *
 * $FreeBSD: src/lib/libio/io.h,v 1.2 1999/08/28 00:04:44 peter Exp $
 */

struct io_ops {
    int		(*ioperm)(u_int32_t, u_int32_t, int);
    u_int8_t	(*inb)(u_int32_t);
    u_int16_t	(*inw)(u_int32_t);
    u_int32_t	(*inl)(u_int32_t);
    void	(*outb)(u_int32_t, u_int8_t);
    void	(*outw)(u_int32_t, u_int16_t);
    void	(*outl)(u_int32_t, u_int32_t);
    void *	(*map_memory)(u_int32_t, u_int32_t);
    void	(*unmap_memory)(void *, u_int32_t);
    u_int8_t	(*readb)(void *, u_int32_t);
    u_int16_t	(*readw)(void *, u_int32_t);
    u_int32_t	(*readl)(void *, u_int32_t);
    void	(*writeb)(void *, u_int32_t, u_int8_t);
    void	(*writew)(void *, u_int32_t, u_int16_t);
    void	(*writel)(void *, u_int32_t, u_int32_t);
};

extern struct io_ops swiz_io_ops;
extern struct io_ops bwx_io_ops;