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/*-
* Copyright (c) 2000 Doug Rabson
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/kobj.h>
#include <machine/bus.h>
#include <machine/swiz.h>
static u_int8_t
swiz_read_1(struct alpha_busspace *space, size_t offset)
{
struct swiz_space *swiz = (struct swiz_space *) space;
alpha_mb();
if (swiz->sethae)
offset = swiz->sethae(swiz->arg, offset);
return SPARSE_READ_BYTE(swiz->base, offset);
}
static u_int16_t
swiz_read_2(struct alpha_busspace *space, size_t offset)
{
struct swiz_space *swiz = (struct swiz_space *) space;
alpha_mb();
if (swiz->sethae)
offset = swiz->sethae(swiz->arg, offset);
return SPARSE_READ_WORD(swiz->base, offset);
}
static u_int32_t
swiz_read_4(struct alpha_busspace *space, size_t offset)
{
struct swiz_space *swiz = (struct swiz_space *) space;
alpha_mb();
if (swiz->sethae)
offset = swiz->sethae(swiz->arg, offset);
return SPARSE_READ_LONG(swiz->base, offset);
}
static void
swiz_write_1(struct alpha_busspace *space, size_t offset, u_int8_t data)
{
struct swiz_space *swiz = (struct swiz_space *) space;
if (swiz->sethae)
offset = swiz->sethae(swiz->arg, offset);
SPARSE_WRITE_BYTE(swiz->base, offset, data);
alpha_mb();
}
static void
swiz_write_2(struct alpha_busspace *space, size_t offset, u_int16_t data)
{
struct swiz_space *swiz = (struct swiz_space *) space;
if (swiz->sethae)
offset = swiz->sethae(swiz->arg, offset);
SPARSE_WRITE_WORD(swiz->base, offset, data);
alpha_mb();
}
static void
swiz_write_4(struct alpha_busspace *space, size_t offset, u_int32_t data)
{
struct swiz_space *swiz = (struct swiz_space *) space;
if (swiz->sethae)
offset = swiz->sethae(swiz->arg, offset);
SPARSE_WRITE_LONG(swiz->base, offset, data);
alpha_mb();
}
static struct alpha_busspace_ops swiz_space_ops = {
swiz_read_1,
swiz_read_2,
swiz_read_4,
busspace_generic_read_multi_1,
busspace_generic_read_multi_2,
busspace_generic_read_multi_4,
busspace_generic_read_region_1,
busspace_generic_read_region_2,
busspace_generic_read_region_4,
swiz_write_1,
swiz_write_2,
swiz_write_4,
busspace_generic_write_multi_1,
busspace_generic_write_multi_2,
busspace_generic_write_multi_4,
busspace_generic_write_region_1,
busspace_generic_write_region_2,
busspace_generic_write_region_4,
busspace_generic_set_multi_1,
busspace_generic_set_multi_2,
busspace_generic_set_multi_4,
busspace_generic_set_region_1,
busspace_generic_set_region_2,
busspace_generic_set_region_4,
busspace_generic_copy_region_1,
busspace_generic_copy_region_2,
busspace_generic_copy_region_4,
busspace_generic_barrier,
};
void
swiz_init_space(struct swiz_space *swiz, u_int64_t base)
{
swiz->ops = &swiz_space_ops;
swiz->base = base;
swiz->sethae = 0;
swiz->arg = 0;
}
void swiz_init_space_hae(struct swiz_space *swiz, u_int64_t base,
swiz_sethae_fn sethae, void *arg)
{
swiz->ops = &swiz_space_ops;
swiz->base = base;
swiz->sethae = sethae;
swiz->arg = arg;
}
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