197 lines
5.7 KiB
C
197 lines
5.7 KiB
C
/* $FreeBSD$ */
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/* $NecBSD: ct_machdep.h,v 1.4.12.2 2001/06/20 06:13:34 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) 1995, 1996, 1997, 1998, 1999, 2000, 2001
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* NetBSD/pc98 porting staff. All rights reserved.
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* Copyright (c) 1995, 1996, 1997, 1998, 1999, 2000, 2001
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* Naofumi HONDA. 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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#ifndef _CT_MACHDEP_H_
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#define _CT_MACHDEP_H_
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#include "opt_ct.h"
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/*
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* Principal rules:
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* 1) do not use bus_space_write/read_X directly in ct.c.
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* 2) do not use port offset defs directly in ct.c.
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*/
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/* special weight if requried */
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#ifdef CT_BUS_WEIGHT
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#undef CT_BUS_WEIGHT
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#define CT_BUS_WEIGHT(chp) \
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{ \
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if ((chp)->ch_bus_weight != NULL) \
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(chp)->ch_bus_weight((chp)); \
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}
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#else /* !CT_BUS_WEIGHT */
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#define CT_BUS_WEIGHT(chp)
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#endif /* !CT_BUS_WEIGHT */
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/* port offset */
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#ifndef CT_USE_RELOCATE_OFFSET
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#define addr_port 0
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#define stat_port 0
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#define ctrl_port 2
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#define cmd_port 4
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#else /* CT_USE_RELOCATE_OFFSET */
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#define addr_port ((chp)->ch_offset[0])
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#define stat_port ((chp)->ch_offset[1])
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#define ctrl_port ((chp)->ch_offset[2])
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#define cmd_port ((chp)->ch_offset[3])
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#endif /* CT_USE_RELOCATE_OFFSET */
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/*
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* All port accesses primitive methods
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*/
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static __inline u_int8_t ct_stat_read_1
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(struct ct_bus_access_handle *);
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static __inline u_int8_t ct_cmdp_read_1
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(struct ct_bus_access_handle *);
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static __inline void ct_cmdp_write_1
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(struct ct_bus_access_handle *, u_int8_t);
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static __inline u_int8_t ct_cr_read_1
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(struct ct_bus_access_handle *, bus_addr_t);
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static __inline void ct_cr_write_1
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(struct ct_bus_access_handle *, bus_addr_t, u_int8_t);
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static __inline void ct_write_cmds
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(struct ct_bus_access_handle *, u_int8_t *, int);
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static __inline u_int cthw_get_count
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(struct ct_bus_access_handle *);
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static __inline void cthw_set_count
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(struct ct_bus_access_handle *, u_int);
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static __inline u_int8_t
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ct_stat_read_1(struct ct_bus_access_handle *chp)
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{
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u_int8_t regv;
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regv = bus_space_read_1(chp->ch_iot, chp->ch_ioh, stat_port);
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CT_BUS_WEIGHT(chp)
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return regv;
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}
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static __inline void
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cthw_set_count(struct ct_bus_access_handle *chp, u_int count)
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{
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bus_space_tag_t bst = chp->ch_iot;
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bus_space_handle_t bsh = chp->ch_ioh;
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bus_space_write_1(bst, bsh, addr_port, wd3s_cnt);
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CT_BUS_WEIGHT(chp)
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bus_space_write_1(bst, bsh, ctrl_port, count >> 16);
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CT_BUS_WEIGHT(chp)
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bus_space_write_1(bst, bsh, ctrl_port, count >> 8);
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CT_BUS_WEIGHT(chp)
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bus_space_write_1(bst, bsh, ctrl_port, count);
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CT_BUS_WEIGHT(chp)
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}
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static __inline u_int
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cthw_get_count(struct ct_bus_access_handle *chp)
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{
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bus_space_tag_t bst = chp->ch_iot;
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bus_space_handle_t bsh = chp->ch_ioh;
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u_int count;
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bus_space_write_1(bst, bsh, addr_port, wd3s_cnt);
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CT_BUS_WEIGHT(chp)
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count = (((u_int) bus_space_read_1(bst, bsh, ctrl_port)) << 16);
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CT_BUS_WEIGHT(chp)
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count += (((u_int) bus_space_read_1(bst, bsh, ctrl_port)) << 8);
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CT_BUS_WEIGHT(chp)
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count += ((u_int) bus_space_read_1(bst, bsh, ctrl_port));
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CT_BUS_WEIGHT(chp)
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return count;
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}
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static __inline void
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ct_write_cmds(struct ct_bus_access_handle *chp, u_int8_t *cmd, int len)
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{
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bus_space_tag_t bst = chp->ch_iot;
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bus_space_handle_t bsh = chp->ch_ioh;
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int i;
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bus_space_write_1(bst, bsh, addr_port, wd3s_cdb);
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CT_BUS_WEIGHT(chp)
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for (i = 0; i < len; i ++)
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{
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bus_space_write_1(bst, bsh, ctrl_port, cmd[i]);
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CT_BUS_WEIGHT(chp)
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}
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}
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static __inline u_int8_t
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ct_cr_read_1(struct ct_bus_access_handle *chp, bus_addr_t offs)
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{
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bus_space_tag_t bst = chp->ch_iot;
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bus_space_handle_t bsh = chp->ch_ioh;
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u_int8_t regv;
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bus_space_write_1(bst, bsh, addr_port, offs);
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CT_BUS_WEIGHT(chp)
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regv = bus_space_read_1(bst, bsh, ctrl_port);
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CT_BUS_WEIGHT(chp)
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return regv;
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}
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static __inline void
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ct_cr_write_1(struct ct_bus_access_handle *chp, bus_addr_t offs, u_int8_t val)
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{
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bus_space_tag_t bst = chp->ch_iot;
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bus_space_handle_t bsh = chp->ch_ioh;
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bus_space_write_1(bst, bsh, addr_port, offs);
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CT_BUS_WEIGHT(chp)
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bus_space_write_1(bst, bsh, ctrl_port, val);
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CT_BUS_WEIGHT(chp)
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}
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static __inline u_int8_t
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ct_cmdp_read_1(struct ct_bus_access_handle *chp)
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{
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u_int8_t regv;
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regv = bus_space_read_1(chp->ch_iot, chp->ch_ioh, cmd_port);
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CT_BUS_WEIGHT(chp)
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return regv;
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}
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static __inline void
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ct_cmdp_write_1(struct ct_bus_access_handle *chp, u_int8_t val)
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{
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bus_space_write_1(chp->ch_iot, chp->ch_ioh, cmd_port, val);
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CT_BUS_WEIGHT(chp)
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}
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#endif /* !_CT_MACHDEP_H_ */
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