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/* $OpenBSD: bus.h,v 1.8 1997/04/10 01:28:53 millert Exp $ */
/* $NetBSD: bus.h,v 1.10 1996/12/02 22:19:32 cgd Exp $ */
/*
* Copyright (c) 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#ifndef _ALPHA_BUS_H_
#define _ALPHA_BUS_H_
/*
* Addresses (in bus space).
*/
typedef u_long bus_addr_t;
typedef u_long bus_size_t;
/*
* Access methods for bus space.
*/
typedef struct alpha_bus_space *bus_space_tag_t;
typedef u_long bus_space_handle_t;
struct alpha_bus_space {
/* cookie */
void *abs_cookie;
/* mapping/unmapping */
int (*abs_map) __P((void *, bus_addr_t, bus_size_t,
int, bus_space_handle_t *));
void (*abs_unmap) __P((void *, bus_space_handle_t,
bus_size_t));
int (*abs_subregion) __P((void *, bus_space_handle_t,
bus_size_t, bus_size_t, bus_space_handle_t *));
/* allocation/deallocation */
int (*abs_alloc) __P((void *, bus_addr_t, bus_addr_t,
bus_size_t, bus_size_t, bus_size_t, int,
bus_addr_t *, bus_space_handle_t *));
void (*abs_free) __P((void *, bus_space_handle_t,
bus_size_t));
/* barrier */
void (*abs_barrier) __P((void *, bus_space_handle_t,
bus_size_t, bus_size_t, int));
/* read (single) */
u_int8_t (*abs_r_1) __P((void *, bus_space_handle_t,
bus_size_t));
u_int16_t (*abs_r_2) __P((void *, bus_space_handle_t,
bus_size_t));
u_int32_t (*abs_r_4) __P((void *, bus_space_handle_t,
bus_size_t));
u_int64_t (*abs_r_8) __P((void *, bus_space_handle_t,
bus_size_t));
/* read multiple */
void (*abs_rm_1) __P((void *, bus_space_handle_t,
bus_size_t, u_int8_t *, bus_size_t));
void (*abs_rm_2) __P((void *, bus_space_handle_t,
bus_size_t, u_int16_t *, bus_size_t));
void (*abs_rm_4) __P((void *, bus_space_handle_t,
bus_size_t, u_int32_t *, bus_size_t));
void (*abs_rm_8) __P((void *, bus_space_handle_t,
bus_size_t, u_int64_t *, bus_size_t));
/* read region */
void (*abs_rr_1) __P((void *, bus_space_handle_t,
bus_size_t, u_int8_t *, bus_size_t));
void (*abs_rr_2) __P((void *, bus_space_handle_t,
bus_size_t, u_int16_t *, bus_size_t));
void (*abs_rr_4) __P((void *, bus_space_handle_t,
bus_size_t, u_int32_t *, bus_size_t));
void (*abs_rr_8) __P((void *, bus_space_handle_t,
bus_size_t, u_int64_t *, bus_size_t));
/* write (single) */
void (*abs_w_1) __P((void *, bus_space_handle_t,
bus_size_t, u_int8_t));
void (*abs_w_2) __P((void *, bus_space_handle_t,
bus_size_t, u_int16_t));
void (*abs_w_4) __P((void *, bus_space_handle_t,
bus_size_t, u_int32_t));
void (*abs_w_8) __P((void *, bus_space_handle_t,
bus_size_t, u_int64_t));
/* write multiple */
void (*abs_wm_1) __P((void *, bus_space_handle_t,
bus_size_t, const u_int8_t *, bus_size_t));
void (*abs_wm_2) __P((void *, bus_space_handle_t,
bus_size_t, const u_int16_t *, bus_size_t));
void (*abs_wm_4) __P((void *, bus_space_handle_t,
bus_size_t, const u_int32_t *, bus_size_t));
void (*abs_wm_8) __P((void *, bus_space_handle_t,
bus_size_t, const u_int64_t *, bus_size_t));
/* write region */
void (*abs_wr_1) __P((void *, bus_space_handle_t,
bus_size_t, const u_int8_t *, bus_size_t));
void (*abs_wr_2) __P((void *, bus_space_handle_t,
bus_size_t, const u_int16_t *, bus_size_t));
void (*abs_wr_4) __P((void *, bus_space_handle_t,
bus_size_t, const u_int32_t *, bus_size_t));
void (*abs_wr_8) __P((void *, bus_space_handle_t,
bus_size_t, const u_int64_t *, bus_size_t));
/* set multiple */
void (*abs_sm_1) __P((void *, bus_space_handle_t,
bus_size_t, u_int8_t, bus_size_t));
void (*abs_sm_2) __P((void *, bus_space_handle_t,
bus_size_t, u_int16_t, bus_size_t));
void (*abs_sm_4) __P((void *, bus_space_handle_t,
bus_size_t, u_int32_t, bus_size_t));
void (*abs_sm_8) __P((void *, bus_space_handle_t,
bus_size_t, u_int64_t, bus_size_t));
/* set region */
void (*abs_sr_1) __P((void *, bus_space_handle_t,
bus_size_t, u_int8_t, bus_size_t));
void (*abs_sr_2) __P((void *, bus_space_handle_t,
bus_size_t, u_int16_t, bus_size_t));
void (*abs_sr_4) __P((void *, bus_space_handle_t,
bus_size_t, u_int32_t, bus_size_t));
void (*abs_sr_8) __P((void *, bus_space_handle_t,
bus_size_t, u_int64_t, bus_size_t));
/* copy */
void (*abs_c_1) __P((void *, bus_space_handle_t, bus_size_t,
bus_space_handle_t, bus_size_t, bus_size_t));
void (*abs_c_2) __P((void *, bus_space_handle_t, bus_size_t,
bus_space_handle_t, bus_size_t, bus_size_t));
void (*abs_c_4) __P((void *, bus_space_handle_t, bus_size_t,
bus_space_handle_t, bus_size_t, bus_size_t));
void (*abs_c_8) __P((void *, bus_space_handle_t, bus_size_t,
bus_space_handle_t, bus_size_t, bus_size_t));
/* OpenBSD extensions follows */
/* read multiple raw */
void (*abs_rrm_2) __P((void *, bus_space_handle_t,
bus_size_t, u_int8_t *, bus_size_t));
void (*abs_rrm_4) __P((void *, bus_space_handle_t,
bus_size_t, u_int8_t *, bus_size_t));
void (*abs_rrm_8) __P((void *, bus_space_handle_t,
bus_size_t, u_int8_t *, bus_size_t));
/* write multiple raw */
void (*abs_wrm_2) __P((void *, bus_space_handle_t,
bus_size_t, const u_int8_t *, bus_size_t));
void (*abs_wrm_4) __P((void *, bus_space_handle_t,
bus_size_t, const u_int8_t *, bus_size_t));
void (*abs_wrm_8) __P((void *, bus_space_handle_t,
bus_size_t, const u_int8_t *, bus_size_t));
};
/*
* Utility macros; INTERNAL USE ONLY.
*/
#define __abs_c(a,b) __CONCAT(a,b)
#define __abs_opname(op,size) __abs_c(__abs_c(__abs_c(abs_,op),_),size)
#define __abs_rs(sz, t, h, o) \
(*(t)->__abs_opname(r,sz))((t)->abs_cookie, h, o)
#define __abs_ws(sz, t, h, o, v) \
(*(t)->__abs_opname(w,sz))((t)->abs_cookie, h, o, v)
#define __abs_nonsingle(type, sz, t, h, o, a, c) \
(*(t)->__abs_opname(type,sz))((t)->abs_cookie, h, o, a, c)
#ifndef DEBUG
#define __abs_aligned_nonsingle(type, sz, t, h, o, a, c) \
__abs_nonsingle((type), (sz), (t), (h), (o), (a), (c))
#else
#define __abs_aligned_nonsingle(type, sz, t, h, o, a, c) \
do { \
if (((unsigned long)a & (sz - 1)) != 0) \
panic("bus non-single %d-byte unaligned (to %p) at %s:%d", \
sz, a, __FILE__, __LINE__); \
(*(t)->__abs_opname(type,sz))((t)->abs_cookie, h, o, a, c); \
} while (0)
#endif
#define __abs_set(type, sz, t, h, o, v, c) \
(*(t)->__abs_opname(type,sz))((t)->abs_cookie, h, o, v, c)
#define __abs_copy(sz, t, h1, o1, h2, o2, cnt) \
(*(t)->__abs_opname(c,sz))((t)->abs_cookie, h1, o1, h2, o2, cnt)
/*
* Mapping and unmapping operations.
*/
#define bus_space_map(t, a, s, c, hp) \
(*(t)->abs_map)((t)->abs_cookie, (a), (s), (c), (hp))
#define bus_space_unmap(t, h, s) \
(*(t)->abs_unmap)((t)->abs_cookie, (h), (s))
#define bus_space_subregion(t, h, o, s, hp) \
(*(t)->abs_subregion)((t)->abs_cookie, (h), (o), (s), (hp))
/*
* Allocation and deallocation operations.
*/
#define bus_space_alloc(t, rs, re, s, a, b, c, ap, hp) \
(*(t)->abs_alloc)((t)->abs_cookie, (rs), (re), (s), (a), (b), \
(c), (ap), (hp))
#define bus_space_free(t, h, s) \
(*(t)->abs_free)((t)->abs_cookie, (h), (s))
/*
* Bus barrier operations.
*/
#define bus_space_barrier(t, h, o, l, f) \
(*(t)->abs_barrier)((t)->abs_cookie, (h), (o), (l), (f))
#define BUS_BARRIER_READ 0x01
#define BUS_BARRIER_WRITE 0x02
/*
* Bus read (single) operations.
*/
#define bus_space_read_1(t, h, o) __abs_rs(1,(t),(h),(o))
#define bus_space_read_2(t, h, o) __abs_rs(2,(t),(h),(o))
#define bus_space_read_4(t, h, o) __abs_rs(4,(t),(h),(o))
#define bus_space_read_8(t, h, o) __abs_rs(8,(t),(h),(o))
/*
* Bus read multiple operations.
*/
#define bus_space_read_multi_1(t, h, o, a, c) \
__abs_nonsingle(rm,1,(t),(h),(o),(a),(c))
#define bus_space_read_multi_2(t, h, o, a, c) \
__abs_aligned_nonsingle(rm,2,(t),(h),(o),(a),(c))
#define bus_space_read_multi_4(t, h, o, a, c) \
__abs_aligned_nonsingle(rm,4,(t),(h),(o),(a),(c))
#define bus_space_read_multi_8(t, h, o, a, c) \
__abs_aligned_nonsingle(rm,8,(t),(h),(o),(a),(c))
/*
* void bus_space_read_raw_multi_N __P((bus_space_tag_t tag,
* bus_space_handle_t bsh, bus_size_t offset,
* u_int8_t *addr, size_t count));
*
* Read `count' bytes in 2, 4 or 8 byte wide quantities from bus space
* described by tag/handle/offset and copy into buffer provided. The buffer
* must have proper alignment for the N byte wide entities. Furthermore
* possible byte-swapping should be done by these functions.
*/
#define bus_space_read_raw_multi_2(t, h, o, a, c) \
__abs_nonsingle(rrm,2,(t),(h),(o),(a),(c))
#define bus_space_read_raw_multi_4(t, h, o, a, c) \
__abs_nonsingle(rrm,4,(t),(h),(o),(a),(c))
#define bus_space_read_raw_multi_8(t, h, o, a, c) \
__abs_nonsingle(rrm,8,(t),(h),(o),(a),(c))
/*
* Bus read region operations.
*/
#define bus_space_read_region_1(t, h, o, a, c) \
__abs_nonsingle(rr,1,(t),(h),(o),(a),(c))
#define bus_space_read_region_2(t, h, o, a, c) \
__abs_aligned_nonsingle(rr,2,(t),(h),(o),(a),(c))
#define bus_space_read_region_4(t, h, o, a, c) \
__abs_aligned_nonsingle(rr,4,(t),(h),(o),(a),(c))
#define bus_space_read_region_8(t, h, o, a, c) \
__abs_aligned_nonsingle(rr,8,(t),(h),(o),(a),(c))
/*
* Bus write (single) operations.
*/
#define bus_space_write_1(t, h, o, v) __abs_ws(1,(t),(h),(o),(v))
#define bus_space_write_2(t, h, o, v) __abs_ws(2,(t),(h),(o),(v))
#define bus_space_write_4(t, h, o, v) __abs_ws(4,(t),(h),(o),(v))
#define bus_space_write_8(t, h, o, v) __abs_ws(8,(t),(h),(o),(v))
/*
* Bus write multiple operations.
*/
#define bus_space_write_multi_1(t, h, o, a, c) \
__abs_nonsingle(wm,1,(t),(h),(o),(a),(c))
#define bus_space_write_multi_2(t, h, o, a, c) \
__abs_aligned_nonsingle(wm,2,(t),(h),(o),(a),(c))
#define bus_space_write_multi_4(t, h, o, a, c) \
__abs_aligned_nonsingle(wm,4,(t),(h),(o),(a),(c))
#define bus_space_write_multi_8(t, h, o, a, c) \
__abs_aligned_nonsingle(wm,8,(t),(h),(o),(a),(c))
/*
* void bus_space_write_raw_multi_N __P((bus_space_tag_t tag,
* bus_space_handle_t bsh, bus_size_t offset,
* u_int8_t *addr, size_t count));
*
* Write `count' bytes in 2, 4 or 8 byte wide quantities from the buffer
* provided to bus space described by tag/handle/offset. The buffer
* must have proper alignment for the N byte wide entities. Furthermore
* possible byte-swapping should be done by these functions.
*/
#define bus_space_write_raw_multi_2(t, h, o, a, c) \
__abs_nonsingle(wrm,2,(t),(h),(o),(a),(c))
#define bus_space_write_raw_multi_4(t, h, o, a, c) \
__abs_nonsingle(wrm,4,(t),(h),(o),(a),(c))
#define bus_space_write_raw_multi_8(t, h, o, a, c) \
__abs_nonsingle(wrm,8,(t),(h),(o),(a),(c))
/*
* Bus write region operations.
*/
#define bus_space_write_region_1(t, h, o, a, c) \
__abs_nonsingle(wr,1,(t),(h),(o),(a),(c))
#define bus_space_write_region_2(t, h, o, a, c) \
__abs_aligned_nonsingle(wr,2,(t),(h),(o),(a),(c))
#define bus_space_write_region_4(t, h, o, a, c) \
__abs_aligned_nonsingle(wr,4,(t),(h),(o),(a),(c))
#define bus_space_write_region_8(t, h, o, a, c) \
__abs_aligned_nonsingle(wr,8,(t),(h),(o),(a),(c))
/*
* Set multiple operations.
*/
#define bus_space_set_multi_1(t, h, o, v, c) \
__abs_set(sm,1,(t),(h),(o),(v),(c))
#define bus_space_set_multi_2(t, h, o, v, c) \
__abs_set(sm,2,(t),(h),(o),(v),(c))
#define bus_space_set_multi_4(t, h, o, v, c) \
__abs_set(sm,4,(t),(h),(o),(v),(c))
#define bus_space_set_multi_8(t, h, o, v, c) \
__abs_set(sm,8,(t),(h),(o),(v),(c))
/*
* Set region operations.
*/
#define bus_space_set_region_1(t, h, o, v, c) \
__abs_set(sr,1,(t),(h),(o),(v),(c))
#define bus_space_set_region_2(t, h, o, v, c) \
__abs_set(sr,2,(t),(h),(o),(v),(c))
#define bus_space_set_region_4(t, h, o, v, c) \
__abs_set(sr,4,(t),(h),(o),(v),(c))
#define bus_space_set_region_8(t, h, o, v, c) \
__abs_set(sr,8,(t),(h),(o),(v),(c))
/*
* Copy operations.
*/
#define bus_space_copy_1(t, h1, o1, h2, o2, c) \
__abs_copy(1, t, h1, o1, h2, o2, c)
#define bus_space_copy_2(t, h1, o1, h2, o2, c) \
__abs_copy(2, t, h1, o1, h2, o2, c)
#define bus_space_copy_4(t, h1, o1, h2, o2, c) \
__abs_copy(4, t, h1, o1, h2, o2, c)
#define bus_space_copy_8(t, h1, o1, h2, o2, c) \
__abs_copy(8, t, h1, o1, h2, o2, c)
#endif /* _ALPHA_BUS_H_ */
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