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/* $OpenBSD: bus.h,v 1.4 1996/09/14 15:58:25 pefo 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 _ARC_BUS_H_
#define _ARC_BUS_H_
#include <machine/autoconf.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;
typedef u_long bus_io_handle_t;
/*
* Memory addresses (in bus space)
*/
typedef u_long bus_mem_addr_t;
typedef u_long bus_mem_size_t;
typedef caddr_t bus_mem_handle_t;
/*
* Access methods for bus resources, I/O space, and memory space.
*/
typedef
struct arc_isa_busmap {
void *isa_io_base;
void *isa_mem_base;
} *bus_chipset_tag_t;
#define bus_io_map(t, port, size, iohp) \
(*iohp = (t == NULL ? port : port + (ulong)(t->isa_io_base)), 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_read_multi_1(t, h, o, a, c) \
insb((h) + (o), (a), (c))
#define bus_io_read_multi_2(t, h, o, a, c) \
insw((h) + (o), (a), (c))
#define bus_io_read_multi_4(t, h, o, a, c) \
insl((h) + (o), (a), (c))
#if 0 /* Cause a link error for bus_io_read_multi_8 */
#define bus_io_read_multi_8(t, h, o, a, c) \
!!! bus_io_read_multi_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
#define bus_io_write_multi_1(t, h, o, a, c) \
outsb((h) + (o), (a), (c))
#define bus_io_write_multi_2(t, h, o, a, c) \
outsw((h) + (o), (a), (c))
#define bus_io_write_multi_4(t, h, o, a, c) \
outsl((h) + (o), (a), (c))
#if 0 /* Cause a link error for bus_io_write_multi_8 */
#define bus_io_write_multi_8(t, h, o, a, c) \
!!! bus_io_write_multi_8 unimplimented !!!
#endif
#define bus_mem_map(t, addr, size, cacheable, mhp) \
(*mhp = (bus_mem_handle_t)(t == NULL ? addr : addr + (ulong)(t->isa_mem_base)), 0)
#define bus_mem_unmap(t, ioh, 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)))
/* These are extensions to the general NetBSD bus interface. */
/* XXX Check endianess */
#define bus_to_host_2(t, v) (v)
#define bus_to_host_4(t, v) (v)
#define bus_to_host_8(t, v) (v)
#define bus_from_host_2(t, v) (v)
#define bus_from_host_4(t, v) (v)
#define bus_from_host_8(t, v) (v)
#endif /* _ARC_BUS_H_ */
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