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Diffstat (limited to 'sys/arch/i386/include/bus.h')
| -rw-r--r-- | sys/arch/i386/include/bus.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/sys/arch/i386/include/bus.h b/sys/arch/i386/include/bus.h new file mode 100644 index 00000000000..fcf4e90771b --- /dev/null +++ b/sys/arch/i386/include/bus.h @@ -0,0 +1,95 @@ +/* $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_ */ |