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/* $OpenBSD: bus.h,v 1.1 1996/04/18 19:21:33 niklas Exp $ */
/* $NetBSD: bus.h,v 1.1 1996/03/08 20:11:23 cgd Exp $ */
/*
* Copyright (c) 1996 Christopher G. Demetriou. 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 Christopher G. Demetriou
* for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
#ifndef _I386_BUS_H_
#define _I386_BUS_H_
#include <machine/pio.h>
/*
* I/O addresses (in bus space)
*/
typedef u_long bus_io_addr_t;
typedef u_long bus_io_size_t;
/*
* Memory addresses (in bus space)
*/
typedef u_long bus_mem_addr_t;
typedef u_long bus_mem_size_t;
/*
* Access methods for bus resources, I/O space, and memory space.
*/
typedef void *bus_chipset_tag_t;
typedef u_long bus_io_handle_t;
typedef caddr_t bus_mem_handle_t;
#define bus_io_map(t, port, size, iohp) \
(*iohp = port, 0)
#define bus_io_unmap(t, ioh, size)
#define bus_io_read_1(t, h, o) inb((h) + (o))
#define bus_io_read_2(t, h, o) inw((h) + (o))
#define bus_io_read_4(t, h, o) inl((h) + (o))
#if 0 /* Cause a link error for bus_io_read_8 */
#define bus_io_read_8(t, h, o) !!! bus_io_read_8 unimplemented !!!
#endif
#define bus_io_write_1(t, h, o, v) outb((h) + (o), (v))
#define bus_io_write_2(t, h, o, v) outw((h) + (o), (v))
#define bus_io_write_4(t, h, o, v) outl((h) + (o), (v))
#if 0 /* Cause a link error for bus_io_write_8 */
#define bus_io_write_8(t, h, o, v) !!! bus_io_write_8 unimplemented !!!
#endif
int bus_mem_map __P((bus_chipset_tag_t t, bus_mem_addr_t bpa,
bus_mem_size_t size, int cacheable, bus_mem_handle_t *mhp));
void bus_mem_unmap __P((bus_chipset_tag_t t, bus_mem_handle_t memh,
bus_mem_size_t size));
#define bus_mem_read_1(t, h, o) (*(volatile u_int8_t *)((h) + (o)))
#define bus_mem_read_2(t, h, o) (*(volatile u_int16_t *)((h) + (o)))
#define bus_mem_read_4(t, h, o) (*(volatile u_int32_t *)((h) + (o)))
#define bus_mem_read_8(t, h, o) (*(volatile u_int64_t *)((h) + (o)))
#define bus_mem_write_1(t, h, o, v) \
((void)(*(volatile u_int8_t *)((h) + (o)) = (v)))
#define bus_mem_write_2(t, h, o, v) \
((void)(*(volatile u_int16_t *)((h) + (o)) = (v)))
#define bus_mem_write_4(t, h, o, v) \
((void)(*(volatile u_int32_t *)((h) + (o)) = (v)))
#define bus_mem_write_8(t, h, o, v) \
((void)(*(volatile u_int64_t *)((h) + (o)) = (v)))
#endif /* _I386_BUS_H_ */
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