f2eeb19063
The type of bus_space_tag_t is now a pointer to bus_space_tag structure, and the bus_space_tag structure saves pointers to functions for direct access and relocate access. Added bsh_bam member to the bus_space_handle structure, it saves access method either direct access or relocate access which is called by bus_space_* functions. Added the mecia device support. If the bs_da and bs_ra in bus tag are set NEPC_io_space_tag and NEPC_mem_space_tag respectively, new bus_space stuff changes the register of mecia automatically for 16bit access. Obtained from: NetBSD/pc98
145 lines
4.6 KiB
C
145 lines
4.6 KiB
C
/* $FreeBSD$ */
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/* $NecBSD: busiosubr.c,v 1.30.4.4 1999/08/28 02:25:35 honda Exp $ */
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/* $NetBSD$ */
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/*
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* [NetBSD for NEC PC-98 series]
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* Copyright (c) 1996, 1997, 1998
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* NetBSD/pc98 porting staff. All rights reserved.
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*
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* [Ported for FreeBSD]
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* Copyright (c) 2001
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* TAKAHASHI Yoshihiro. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1997, 1998
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* Naofumi HONDA. All rights reserved.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <machine/bus.h>
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_BUS_SPACE_CALL_FUNCS_PROTO(SBUS_DA_io,u_int8_t,1)
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_BUS_SPACE_CALL_FUNCS_PROTO(SBUS_DA_io,u_int16_t,2)
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_BUS_SPACE_CALL_FUNCS_PROTO(SBUS_DA_io,u_int32_t,4)
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_BUS_SPACE_CALL_FUNCS_PROTO(SBUS_DA_mem,u_int8_t,1)
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_BUS_SPACE_CALL_FUNCS_PROTO(SBUS_DA_mem,u_int16_t,2)
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_BUS_SPACE_CALL_FUNCS_PROTO(SBUS_DA_mem,u_int32_t,4)
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_BUS_SPACE_CALL_FUNCS_PROTO(SBUS_RA_io,u_int8_t,1)
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_BUS_SPACE_CALL_FUNCS_PROTO(SBUS_RA_io,u_int16_t,2)
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_BUS_SPACE_CALL_FUNCS_PROTO(SBUS_RA_io,u_int32_t,4)
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_BUS_SPACE_CALL_FUNCS_PROTO(SBUS_RA_mem,u_int8_t,1)
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_BUS_SPACE_CALL_FUNCS_PROTO(SBUS_RA_mem,u_int16_t,2)
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_BUS_SPACE_CALL_FUNCS_PROTO(SBUS_RA_mem,u_int32_t,4)
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struct bus_space_tag SBUS_io_space_tag = {
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BUS_SPACE_IO,
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/* direct bus access methods */
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{
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_DA_io,u_int8_t,1),
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_DA_io,u_int16_t,2),
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_DA_io,u_int32_t,4),
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},
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/* relocate bus access methods */
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{
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_RA_io,u_int8_t,1),
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_RA_io,u_int16_t,2),
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_RA_io,u_int32_t,4),
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}
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};
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struct bus_space_tag SBUS_mem_space_tag = {
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BUS_SPACE_MEM,
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/* direct bus access methods */
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{
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_DA_mem,u_int8_t,1),
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_DA_mem,u_int16_t,2),
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_DA_mem,u_int32_t,4),
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},
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/* relocate bus access methods */
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{
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_RA_mem,u_int8_t,1),
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_RA_mem,u_int16_t,2),
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_RA_mem,u_int32_t,4),
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}
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};
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#include "opt_mecia.h"
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#ifdef DEV_MECIA
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_BUS_SPACE_CALL_FUNCS_PROTO(NEPC_DA_io,u_int16_t,2)
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_BUS_SPACE_CALL_FUNCS_PROTO(NEPC_DA_io,u_int32_t,4)
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_BUS_SPACE_CALL_FUNCS_PROTO(NEPC_RA_io,u_int16_t,2)
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_BUS_SPACE_CALL_FUNCS_PROTO(NEPC_RA_io,u_int32_t,4)
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struct bus_space_tag NEPC_io_space_tag = {
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BUS_SPACE_IO,
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/* direct bus access methods */
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{
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_DA_io,u_int8_t,1),
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_BUS_SPACE_CALL_FUNCS_TAB(NEPC_DA_io,u_int16_t,2),
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_BUS_SPACE_CALL_FUNCS_TAB(NEPC_DA_io,u_int32_t,4),
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},
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/* relocate bus access methods */
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{
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_RA_io,u_int8_t,1),
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_BUS_SPACE_CALL_FUNCS_TAB(NEPC_RA_io,u_int16_t,2),
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_BUS_SPACE_CALL_FUNCS_TAB(NEPC_RA_io,u_int32_t,4),
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}
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};
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struct bus_space_tag NEPC_mem_space_tag = {
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BUS_SPACE_MEM,
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/* direct bus access methods */
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{
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_DA_mem,u_int8_t,1),
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_DA_mem,u_int16_t,2),
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_DA_mem,u_int32_t,4),
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},
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/* relocate bus access methods */
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{
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_RA_mem,u_int8_t,1),
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_RA_mem,u_int16_t,2),
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_BUS_SPACE_CALL_FUNCS_TAB(SBUS_RA_mem,u_int32_t,4),
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}
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};
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#endif /* DEV_MECIA */
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