328 lines
11 KiB
C
328 lines
11 KiB
C
/* $NetBSD: bus.h,v 1.11 1997/04/06 08:47:18 cgd Exp $ */
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/*
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* Copyright (c) 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#ifndef _ALPHA_BUS_H_
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#define _ALPHA_BUS_H_
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/*
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* Addresses (in bus space).
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*/
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typedef u_long bus_addr_t;
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typedef u_long bus_size_t;
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/*
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* Access methods for bus space.
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*/
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typedef struct alpha_bus_space *bus_space_tag_t;
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typedef u_long bus_space_handle_t;
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struct alpha_bus_space {
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/* cookie */
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void *abs_cookie;
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/* mapping/unmapping */
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int (*abs_map) __P((void *, bus_addr_t, bus_size_t,
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int, bus_space_handle_t *));
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void (*abs_unmap) __P((void *, bus_space_handle_t,
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bus_size_t));
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int (*abs_subregion) __P((void *, bus_space_handle_t,
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bus_size_t, bus_size_t, bus_space_handle_t *));
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/* allocation/deallocation */
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int (*abs_alloc) __P((void *, bus_addr_t, bus_addr_t,
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bus_size_t, bus_size_t, bus_size_t, int,
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bus_addr_t *, bus_space_handle_t *));
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void (*abs_free) __P((void *, bus_space_handle_t,
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bus_size_t));
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/* barrier */
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void (*abs_barrier) __P((void *, bus_space_handle_t,
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bus_size_t, bus_size_t, int));
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/* read (single) */
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u_int8_t (*abs_r_1) __P((void *, bus_space_handle_t,
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bus_size_t));
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u_int16_t (*abs_r_2) __P((void *, bus_space_handle_t,
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bus_size_t));
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u_int32_t (*abs_r_4) __P((void *, bus_space_handle_t,
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bus_size_t));
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u_int64_t (*abs_r_8) __P((void *, bus_space_handle_t,
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bus_size_t));
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/* read multiple */
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void (*abs_rm_1) __P((void *, bus_space_handle_t,
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bus_size_t, u_int8_t *, bus_size_t));
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void (*abs_rm_2) __P((void *, bus_space_handle_t,
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bus_size_t, u_int16_t *, bus_size_t));
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void (*abs_rm_4) __P((void *, bus_space_handle_t,
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bus_size_t, u_int32_t *, bus_size_t));
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void (*abs_rm_8) __P((void *, bus_space_handle_t,
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bus_size_t, u_int64_t *, bus_size_t));
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/* read region */
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void (*abs_rr_1) __P((void *, bus_space_handle_t,
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bus_size_t, u_int8_t *, bus_size_t));
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void (*abs_rr_2) __P((void *, bus_space_handle_t,
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bus_size_t, u_int16_t *, bus_size_t));
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void (*abs_rr_4) __P((void *, bus_space_handle_t,
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bus_size_t, u_int32_t *, bus_size_t));
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void (*abs_rr_8) __P((void *, bus_space_handle_t,
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bus_size_t, u_int64_t *, bus_size_t));
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/* write (single) */
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void (*abs_w_1) __P((void *, bus_space_handle_t,
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bus_size_t, u_int8_t));
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void (*abs_w_2) __P((void *, bus_space_handle_t,
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bus_size_t, u_int16_t));
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void (*abs_w_4) __P((void *, bus_space_handle_t,
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bus_size_t, u_int32_t));
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void (*abs_w_8) __P((void *, bus_space_handle_t,
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bus_size_t, u_int64_t));
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/* write multiple */
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void (*abs_wm_1) __P((void *, bus_space_handle_t,
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bus_size_t, const u_int8_t *, bus_size_t));
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void (*abs_wm_2) __P((void *, bus_space_handle_t,
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bus_size_t, const u_int16_t *, bus_size_t));
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void (*abs_wm_4) __P((void *, bus_space_handle_t,
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bus_size_t, const u_int32_t *, bus_size_t));
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void (*abs_wm_8) __P((void *, bus_space_handle_t,
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bus_size_t, const u_int64_t *, bus_size_t));
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/* write region */
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void (*abs_wr_1) __P((void *, bus_space_handle_t,
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bus_size_t, const u_int8_t *, bus_size_t));
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void (*abs_wr_2) __P((void *, bus_space_handle_t,
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bus_size_t, const u_int16_t *, bus_size_t));
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void (*abs_wr_4) __P((void *, bus_space_handle_t,
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bus_size_t, const u_int32_t *, bus_size_t));
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void (*abs_wr_8) __P((void *, bus_space_handle_t,
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bus_size_t, const u_int64_t *, bus_size_t));
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/* set multiple */
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void (*abs_sm_1) __P((void *, bus_space_handle_t,
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bus_size_t, u_int8_t, bus_size_t));
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void (*abs_sm_2) __P((void *, bus_space_handle_t,
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bus_size_t, u_int16_t, bus_size_t));
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void (*abs_sm_4) __P((void *, bus_space_handle_t,
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bus_size_t, u_int32_t, bus_size_t));
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void (*abs_sm_8) __P((void *, bus_space_handle_t,
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bus_size_t, u_int64_t, bus_size_t));
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/* set region */
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void (*abs_sr_1) __P((void *, bus_space_handle_t,
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bus_size_t, u_int8_t, bus_size_t));
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void (*abs_sr_2) __P((void *, bus_space_handle_t,
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bus_size_t, u_int16_t, bus_size_t));
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void (*abs_sr_4) __P((void *, bus_space_handle_t,
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bus_size_t, u_int32_t, bus_size_t));
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void (*abs_sr_8) __P((void *, bus_space_handle_t,
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bus_size_t, u_int64_t, bus_size_t));
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/* copy */
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void (*abs_c_1) __P((void *, bus_space_handle_t, bus_size_t,
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bus_space_handle_t, bus_size_t, bus_size_t));
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void (*abs_c_2) __P((void *, bus_space_handle_t, bus_size_t,
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bus_space_handle_t, bus_size_t, bus_size_t));
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void (*abs_c_4) __P((void *, bus_space_handle_t, bus_size_t,
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bus_space_handle_t, bus_size_t, bus_size_t));
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void (*abs_c_8) __P((void *, bus_space_handle_t, bus_size_t,
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bus_space_handle_t, bus_size_t, bus_size_t));
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};
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/*
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* Utility macros; INTERNAL USE ONLY.
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*/
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#define __abs_c(a,b) __CONCAT(a,b)
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#define __abs_opname(op,size) __abs_c(__abs_c(__abs_c(abs_,op),_),size)
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#define __abs_rs(sz, t, h, o) \
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(*(t)->__abs_opname(r,sz))((t)->abs_cookie, h, o)
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#define __abs_ws(sz, t, h, o, v) \
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(*(t)->__abs_opname(w,sz))((t)->abs_cookie, h, o, v)
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#ifndef DEBUG
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#define __abs_nonsingle(type, sz, t, h, o, a, c) \
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(*(t)->__abs_opname(type,sz))((t)->abs_cookie, h, o, a, c)
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#else
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#define __abs_nonsingle(type, sz, t, h, o, a, c) \
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do { \
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if (((unsigned long)a & (sz - 1)) != 0) \
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panic("bus non-single %d-byte unaligned (to %p) at %s:%d", \
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sz, a, __FILE__, __LINE__); \
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(*(t)->__abs_opname(type,sz))((t)->abs_cookie, h, o, a, c); \
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} while (0)
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#endif
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#define __abs_set(type, sz, t, h, o, v, c) \
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(*(t)->__abs_opname(type,sz))((t)->abs_cookie, h, o, v, c)
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#define __abs_copy(sz, t, h1, o1, h2, o2, cnt) \
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(*(t)->__abs_opname(c,sz))((t)->abs_cookie, h1, o1, h2, o2, cnt)
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/*
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* Mapping and unmapping operations.
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*/
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#define bus_space_map(t, a, s, c, hp) \
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(*(t)->abs_map)((t)->abs_cookie, (a), (s), (c), (hp))
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#define bus_space_unmap(t, h, s) \
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(*(t)->abs_unmap)((t)->abs_cookie, (h), (s))
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#define bus_space_subregion(t, h, o, s, hp) \
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(*(t)->abs_subregion)((t)->abs_cookie, (h), (o), (s), (hp))
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/*
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* Allocation and deallocation operations.
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*/
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#define bus_space_alloc(t, rs, re, s, a, b, c, ap, hp) \
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(*(t)->abs_alloc)((t)->abs_cookie, (rs), (re), (s), (a), (b), \
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(c), (ap), (hp))
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#define bus_space_free(t, h, s) \
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(*(t)->abs_free)((t)->abs_cookie, (h), (s))
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/*
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* Bus barrier operations.
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*/
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#define bus_space_barrier(t, h, o, l, f) \
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(*(t)->abs_barrier)((t)->abs_cookie, (h), (o), (l), (f))
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#define BUS_BARRIER_READ 0x01
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#define BUS_BARRIER_WRITE 0x02
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/*
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* Bus read (single) operations.
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*/
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#define bus_space_read_1(t, h, o) __abs_rs(1,(t),(h),(o))
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#define bus_space_read_2(t, h, o) __abs_rs(2,(t),(h),(o))
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#define bus_space_read_4(t, h, o) __abs_rs(4,(t),(h),(o))
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#define bus_space_read_8(t, h, o) __abs_rs(8,(t),(h),(o))
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/*
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* Bus read multiple operations.
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*/
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#define bus_space_read_multi_1(t, h, o, a, c) \
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__abs_nonsingle(rm,1,(t),(h),(o),(a),(c))
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#define bus_space_read_multi_2(t, h, o, a, c) \
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__abs_nonsingle(rm,2,(t),(h),(o),(a),(c))
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#define bus_space_read_multi_4(t, h, o, a, c) \
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__abs_nonsingle(rm,4,(t),(h),(o),(a),(c))
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#define bus_space_read_multi_8(t, h, o, a, c) \
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__abs_nonsingle(rm,8,(t),(h),(o),(a),(c))
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/*
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* Bus read region operations.
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*/
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#define bus_space_read_region_1(t, h, o, a, c) \
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__abs_nonsingle(rr,1,(t),(h),(o),(a),(c))
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#define bus_space_read_region_2(t, h, o, a, c) \
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__abs_nonsingle(rr,2,(t),(h),(o),(a),(c))
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#define bus_space_read_region_4(t, h, o, a, c) \
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__abs_nonsingle(rr,4,(t),(h),(o),(a),(c))
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#define bus_space_read_region_8(t, h, o, a, c) \
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__abs_nonsingle(rr,8,(t),(h),(o),(a),(c))
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/*
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* Bus write (single) operations.
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*/
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#define bus_space_write_1(t, h, o, v) __abs_ws(1,(t),(h),(o),(v))
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#define bus_space_write_2(t, h, o, v) __abs_ws(2,(t),(h),(o),(v))
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#define bus_space_write_4(t, h, o, v) __abs_ws(4,(t),(h),(o),(v))
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#define bus_space_write_8(t, h, o, v) __abs_ws(8,(t),(h),(o),(v))
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/*
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* Bus write multiple operations.
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*/
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#define bus_space_write_multi_1(t, h, o, a, c) \
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__abs_nonsingle(wm,1,(t),(h),(o),(a),(c))
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#define bus_space_write_multi_2(t, h, o, a, c) \
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__abs_nonsingle(wm,2,(t),(h),(o),(a),(c))
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#define bus_space_write_multi_4(t, h, o, a, c) \
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__abs_nonsingle(wm,4,(t),(h),(o),(a),(c))
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#define bus_space_write_multi_8(t, h, o, a, c) \
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__abs_nonsingle(wm,8,(t),(h),(o),(a),(c))
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/*
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* Bus write region operations.
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*/
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#define bus_space_write_region_1(t, h, o, a, c) \
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__abs_nonsingle(wr,1,(t),(h),(o),(a),(c))
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#define bus_space_write_region_2(t, h, o, a, c) \
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__abs_nonsingle(wr,2,(t),(h),(o),(a),(c))
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#define bus_space_write_region_4(t, h, o, a, c) \
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__abs_nonsingle(wr,4,(t),(h),(o),(a),(c))
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#define bus_space_write_region_8(t, h, o, a, c) \
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__abs_nonsingle(wr,8,(t),(h),(o),(a),(c))
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/*
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* Set multiple operations.
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*/
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#define bus_space_set_multi_1(t, h, o, v, c) \
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__abs_set(sm,1,(t),(h),(o),(v),(c))
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#define bus_space_set_multi_2(t, h, o, v, c) \
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__abs_set(sm,2,(t),(h),(o),(v),(c))
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#define bus_space_set_multi_4(t, h, o, v, c) \
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__abs_set(sm,4,(t),(h),(o),(v),(c))
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#define bus_space_set_multi_8(t, h, o, v, c) \
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__abs_set(sm,8,(t),(h),(o),(v),(c))
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/*
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* Set region operations.
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*/
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#define bus_space_set_region_1(t, h, o, v, c) \
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__abs_set(sr,1,(t),(h),(o),(v),(c))
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#define bus_space_set_region_2(t, h, o, v, c) \
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__abs_set(sr,2,(t),(h),(o),(v),(c))
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#define bus_space_set_region_4(t, h, o, v, c) \
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__abs_set(sr,4,(t),(h),(o),(v),(c))
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#define bus_space_set_region_8(t, h, o, v, c) \
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__abs_set(sr,8,(t),(h),(o),(v),(c))
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/*
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* Copy operations.
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*/
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#define bus_space_copy_1(t, h1, o1, h2, o2, c) \
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__abs_copy(1, t, h1, o1, h2, o2, c)
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#define bus_space_copy_2(t, h1, o1, h2, o2, c) \
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__abs_copy(2, t, h1, o1, h2, o2, c)
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#define bus_space_copy_4(t, h1, o1, h2, o2, c) \
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__abs_copy(4, t, h1, o1, h2, o2, c)
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#define bus_space_copy_8(t, h1, o1, h2, o2, c) \
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__abs_copy(8, t, h1, o1, h2, o2, c)
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#endif /* _ALPHA_BUS_H_ */
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