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/* $NetBSD: obio_space.c,v 1.6 2003/07/15 00:25:05 lukem Exp $ */
/*-
* Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Jason R. Thorpe for Wasabi Systems, Inc.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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.
*/
/*
* bus_space functions for PXA devices
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <machine/bus.h>
#include <arm/xscale/pxa/pxareg.h>
#include <arm/xscale/pxa/pxavar.h>
static MALLOC_DEFINE(M_PXATAG, "PXA bus_space tags", "Bus_space tags for PXA");
/* Prototypes for all the bus_space structure functions */
bs_protos(generic);
bs_protos(generic_armv4);
bs_protos(pxa);
/*
* The obio bus space tag. This is constant for all instances, so
* we never have to explicitly "create" it.
*/
struct bus_space _base_tag = {
/* cookie */
(void *) 0,
/* mapping/unmapping */
generic_bs_map,
generic_bs_unmap,
generic_bs_subregion,
/* allocation/deallocation */
generic_bs_alloc,
generic_bs_free,
/* barrier */
generic_bs_barrier,
/* read (single) */
pxa_bs_r_1,
pxa_bs_r_2,
pxa_bs_r_4,
NULL,
/* read multiple */
pxa_bs_rm_1,
pxa_bs_rm_2,
NULL,
NULL,
/* read region */
pxa_bs_rr_1,
NULL,
NULL,
NULL,
/* write (single) */
pxa_bs_w_1,
pxa_bs_w_2,
pxa_bs_w_4,
NULL,
/* write multiple */
pxa_bs_wm_1,
pxa_bs_wm_2,
NULL,
NULL,
/* write region */
NULL,
NULL,
NULL,
NULL,
/* set multiple */
NULL,
NULL,
NULL,
NULL,
/* set region */
NULL,
NULL,
NULL,
NULL,
/* copy */
NULL,
NULL,
NULL,
NULL,
};
static struct bus_space _obio_tag;
bus_space_tag_t base_tag = &_base_tag;
bus_space_tag_t obio_tag = NULL;
void
pxa_obio_tag_init()
{
bcopy(&_base_tag, &_obio_tag, sizeof(struct bus_space));
_obio_tag.bs_cookie = (void *)PXA2X0_PERIPH_OFFSET;
obio_tag = &_obio_tag;
}
bus_space_tag_t
pxa_bus_tag_alloc(bus_addr_t offset)
{
struct bus_space *tag;
tag = (struct bus_space *)malloc(sizeof(struct bus_space), M_PXATAG,
M_WAITOK);
if (tag == NULL) {
return (NULL);
}
bcopy(&_base_tag, tag, sizeof(struct bus_space));
tag->bs_cookie = (void *)offset;
return ((bus_space_tag_t)tag);
}
#define READ_SINGLE(type, proto, base) \
type \
proto(void *cookie, bus_space_handle_t bsh, bus_size_t offset) \
{ \
bus_addr_t tag_offset; \
type value; \
tag_offset = (bus_addr_t)cookie; \
value = base(NULL, bsh + tag_offset, offset); \
return (value); \
}
READ_SINGLE(u_int8_t, pxa_bs_r_1, generic_bs_r_1)
READ_SINGLE(u_int16_t, pxa_bs_r_2, generic_armv4_bs_r_2)
READ_SINGLE(u_int32_t, pxa_bs_r_4, generic_bs_r_4)
#undef READ_SINGLE
#define WRITE_SINGLE(type, proto, base) \
void \
proto(void *cookie, bus_space_handle_t bsh, bus_size_t offset, \
type value) \
{ \
bus_addr_t tag_offset; \
tag_offset = (bus_addr_t)cookie; \
base(NULL, bsh + tag_offset, offset, value); \
}
WRITE_SINGLE(u_int8_t, pxa_bs_w_1, generic_bs_w_1)
WRITE_SINGLE(u_int16_t, pxa_bs_w_2, generic_armv4_bs_w_2)
WRITE_SINGLE(u_int32_t, pxa_bs_w_4, generic_bs_w_4)
#undef WRITE_SINGLE
#define READ_MULTI(type, proto, base) \
void \
proto(void *cookie, bus_space_handle_t bsh, bus_size_t offset, \
type *dest, bus_size_t count) \
{ \
bus_addr_t tag_offset; \
tag_offset = (bus_addr_t)cookie; \
base(NULL, bsh + tag_offset, offset, dest, count); \
}
READ_MULTI(u_int8_t, pxa_bs_rm_1, generic_bs_rm_1)
READ_MULTI(u_int16_t, pxa_bs_rm_2, generic_armv4_bs_rm_2)
READ_MULTI(u_int8_t, pxa_bs_rr_1, generic_bs_rr_1)
#undef READ_MULTI
#define WRITE_MULTI(type, proto, base) \
void \
proto(void *cookie, bus_space_handle_t bsh, bus_size_t offset, \
const type *src, bus_size_t count) \
{ \
bus_addr_t tag_offset; \
tag_offset = (bus_addr_t)cookie; \
base(NULL, bsh + tag_offset, offset, src, count); \
}
WRITE_MULTI(u_int8_t, pxa_bs_wm_1, generic_bs_wm_1)
WRITE_MULTI(u_int16_t, pxa_bs_wm_2, generic_armv4_bs_wm_2)
#undef WRITE_MULTI
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