ba9685ceff
bus memory and I/O space access functions/macros, to be used by
machine-independent code for more sane access to bus resources.
New functions will be added to this set, in the future, as appropriate,
but this is a good starting set. Defines:
bus_{io,mem}_{map,unmap}
bus_{io,mem}_{read,write}_{1,2,4,8}
functions, and several types to go with them.
31 lines
585 B
C
31 lines
585 B
C
/* $NetBSD: bus.h,v 1.1 1996/03/27 10:09:10 jonathan Exp $ */
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#ifndef _PICA_BUS_H_
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#define _PICA_BUS_H_
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/*
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* ISA "I/O space" macros
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*/
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#include <machine/pio.h>
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/*
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* I/O addresses (in bus space)
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*/
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typedef u_int32_t bus_io_addr_t;
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typedef u_int32_t bus_io_size_t;
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/*
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* Memory addresses (in bus space)
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*/
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typedef u_int32_t bus_mem_addr_t;
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typedef u_int32_t bus_mem_size_t;
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/*
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* Access methods for bus resources, I/O space, and memory space.
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*/
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typedef void *bus_chipset_tag_t;
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typedef u_int32_t bus_io_handle_t;
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typedef caddr_t bus_mem_handle_t;
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#endif /* _PICA_BUS_H_ */
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