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/* $FreeBSD$ */
/* $NecBSD: ct_machdep.h,v 1.4.12.2 2001/06/20 06:13:34 honda Exp $ */
/* $NetBSD$ */
/*-
* [NetBSD for NEC PC-98 series]
* Copyright (c) 1995, 1996, 1997, 1998, 1999, 2000, 2001
* NetBSD/pc98 porting staff. All rights reserved.
* Copyright (c) 1995, 1996, 1997, 1998, 1999, 2000, 2001
* Naofumi HONDA. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _CT_MACHDEP_H_
#define _CT_MACHDEP_H_
#include "opt_ct.h"
/*
* Principal rules:
* 1) do not use bus_space_write/read_X directly in ct.c.
* 2) do not use port offset defs directly in ct.c.
*/
/* special weight if requried */
#ifdef CT_BUS_WEIGHT
#undef CT_BUS_WEIGHT
#define CT_BUS_WEIGHT(chp) \
{ \
if ((chp)->ch_bus_weight != NULL) \
(chp)->ch_bus_weight((chp)); \
}
#else /* !CT_BUS_WEIGHT */
#define CT_BUS_WEIGHT(chp)
#endif /* !CT_BUS_WEIGHT */
/* port offset */
#ifndef CT_USE_RELOCATE_OFFSET
#define addr_port 0
#define stat_port 0
#define ctrl_port 2
#define cmd_port 4
#else /* CT_USE_RELOCATE_OFFSET */
#define addr_port ((chp)->ch_offset[0])
#define stat_port ((chp)->ch_offset[1])
#define ctrl_port ((chp)->ch_offset[2])
#define cmd_port ((chp)->ch_offset[3])
#endif /* CT_USE_RELOCATE_OFFSET */
/*
* All port accesses primitive methods
*/
static __inline u_int8_t ct_stat_read_1
(struct ct_bus_access_handle *);
static __inline u_int8_t ct_cmdp_read_1
(struct ct_bus_access_handle *);
static __inline void ct_cmdp_write_1
(struct ct_bus_access_handle *, u_int8_t);
static __inline u_int8_t ct_cr_read_1
(struct ct_bus_access_handle *, bus_addr_t);
static __inline void ct_cr_write_1
(struct ct_bus_access_handle *, bus_addr_t, u_int8_t);
static __inline void ct_write_cmds
(struct ct_bus_access_handle *, u_int8_t *, int);
static __inline u_int cthw_get_count
(struct ct_bus_access_handle *);
static __inline void cthw_set_count
(struct ct_bus_access_handle *, u_int);
static __inline u_int8_t
ct_stat_read_1(chp)
struct ct_bus_access_handle *chp;
{
u_int8_t regv;
regv = bus_space_read_1(chp->ch_iot, chp->ch_ioh, stat_port);
CT_BUS_WEIGHT(chp)
return regv;
}
static __inline void
cthw_set_count(chp, count)
struct ct_bus_access_handle *chp;
u_int count;
{
bus_space_tag_t bst = chp->ch_iot;
bus_space_handle_t bsh = chp->ch_ioh;
bus_space_write_1(bst, bsh, addr_port, wd3s_cnt);
CT_BUS_WEIGHT(chp)
bus_space_write_1(bst, bsh, ctrl_port, count >> 16);
CT_BUS_WEIGHT(chp)
bus_space_write_1(bst, bsh, ctrl_port, count >> 8);
CT_BUS_WEIGHT(chp)
bus_space_write_1(bst, bsh, ctrl_port, count);
CT_BUS_WEIGHT(chp)
}
static __inline u_int
cthw_get_count(chp)
struct ct_bus_access_handle *chp;
{
bus_space_tag_t bst = chp->ch_iot;
bus_space_handle_t bsh = chp->ch_ioh;
u_int count;
bus_space_write_1(bst, bsh, addr_port, wd3s_cnt);
CT_BUS_WEIGHT(chp)
count = (((u_int) bus_space_read_1(bst, bsh, ctrl_port)) << 16);
CT_BUS_WEIGHT(chp)
count += (((u_int) bus_space_read_1(bst, bsh, ctrl_port)) << 8);
CT_BUS_WEIGHT(chp)
count += ((u_int) bus_space_read_1(bst, bsh, ctrl_port));
CT_BUS_WEIGHT(chp)
return count;
}
static __inline void
ct_write_cmds(chp, cmd, len)
struct ct_bus_access_handle *chp;
u_int8_t *cmd;
int len;
{
bus_space_tag_t bst = chp->ch_iot;
bus_space_handle_t bsh = chp->ch_ioh;
int i;
bus_space_write_1(bst, bsh, addr_port, wd3s_cdb);
CT_BUS_WEIGHT(chp)
for (i = 0; i < len; i ++)
{
bus_space_write_1(bst, bsh, ctrl_port, cmd[i]);
CT_BUS_WEIGHT(chp)
}
}
static __inline u_int8_t
ct_cr_read_1(chp, offs)
struct ct_bus_access_handle *chp;
bus_addr_t offs;
{
bus_space_tag_t bst = chp->ch_iot;
bus_space_handle_t bsh = chp->ch_ioh;
u_int8_t regv;
bus_space_write_1(bst, bsh, addr_port, offs);
CT_BUS_WEIGHT(chp)
regv = bus_space_read_1(bst, bsh, ctrl_port);
CT_BUS_WEIGHT(chp)
return regv;
}
static __inline void
ct_cr_write_1(chp, offs, val)
struct ct_bus_access_handle *chp;
bus_addr_t offs;
u_int8_t val;
{
bus_space_tag_t bst = chp->ch_iot;
bus_space_handle_t bsh = chp->ch_ioh;
bus_space_write_1(bst, bsh, addr_port, offs);
CT_BUS_WEIGHT(chp)
bus_space_write_1(bst, bsh, ctrl_port, val);
CT_BUS_WEIGHT(chp)
}
static __inline u_int8_t
ct_cmdp_read_1(chp)
struct ct_bus_access_handle *chp;
{
u_int8_t regv;
regv = bus_space_read_1(chp->ch_iot, chp->ch_ioh, cmd_port);
CT_BUS_WEIGHT(chp)
return regv;
}
static __inline void
ct_cmdp_write_1(chp, val)
struct ct_bus_access_handle *chp;
u_int8_t val;
{
bus_space_write_1(chp->ch_iot, chp->ch_ioh, cmd_port, val);
CT_BUS_WEIGHT(chp)
}
#if defined(__i386__) && 0
#define SOFT_INTR_REQUIRED(slp) (softintr((slp)->sl_irq))
#else /* !__i386__ */
#define SOFT_INTR_REQUIRED(slp)
#endif /* !__i386__ */
#endif /* !_CT_MACHDEP_H_ */
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