234 lines
5.6 KiB
C
234 lines
5.6 KiB
C
/* $NetBSD: obio_space.c,v 1.6 2003/07/15 00:25:05 lukem Exp $ */
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/*-
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* Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Jason R. Thorpe for Wasabi Systems, Inc.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN 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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* bus_space functions for PXA devices
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <machine/bus.h>
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#include <arm/xscale/pxa/pxareg.h>
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#include <arm/xscale/pxa/pxavar.h>
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static MALLOC_DEFINE(M_PXATAG, "PXA bus_space tags", "Bus_space tags for PXA");
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/* Prototypes for all the bus_space structure functions */
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bs_protos(generic);
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bs_protos(generic_armv4);
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bs_protos(pxa);
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/*
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* The obio bus space tag. This is constant for all instances, so
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* we never have to explicitly "create" it.
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*/
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struct bus_space _base_tag = {
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/* cookie */
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(void *) 0,
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/* mapping/unmapping */
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generic_bs_map,
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generic_bs_unmap,
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generic_bs_subregion,
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/* allocation/deallocation */
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generic_bs_alloc,
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generic_bs_free,
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/* barrier */
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generic_bs_barrier,
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/* read (single) */
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pxa_bs_r_1,
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pxa_bs_r_2,
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pxa_bs_r_4,
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NULL,
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/* read multiple */
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pxa_bs_rm_1,
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pxa_bs_rm_2,
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NULL,
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NULL,
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/* read region */
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pxa_bs_rr_1,
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NULL,
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NULL,
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NULL,
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/* write (single) */
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pxa_bs_w_1,
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pxa_bs_w_2,
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pxa_bs_w_4,
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NULL,
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/* write multiple */
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pxa_bs_wm_1,
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pxa_bs_wm_2,
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NULL,
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NULL,
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/* write region */
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NULL,
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NULL,
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NULL,
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NULL,
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/* set multiple */
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NULL,
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NULL,
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NULL,
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NULL,
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/* set region */
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NULL,
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NULL,
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NULL,
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NULL,
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/* copy */
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NULL,
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NULL,
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NULL,
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NULL,
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};
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static struct bus_space _obio_tag;
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bus_space_tag_t base_tag = &_base_tag;
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bus_space_tag_t obio_tag = NULL;
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void
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pxa_obio_tag_init()
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{
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bcopy(&_base_tag, &_obio_tag, sizeof(struct bus_space));
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_obio_tag.bs_cookie = (void *)PXA2X0_PERIPH_OFFSET;
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obio_tag = &_obio_tag;
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}
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bus_space_tag_t
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pxa_bus_tag_alloc(bus_addr_t offset)
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{
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struct bus_space *tag;
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tag = (struct bus_space *)malloc(sizeof(struct bus_space), M_PXATAG,
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M_WAITOK);
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if (tag == NULL) {
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return (NULL);
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}
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bcopy(&_base_tag, tag, sizeof(struct bus_space));
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tag->bs_cookie = (void *)offset;
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return ((bus_space_tag_t)tag);
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}
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#define READ_SINGLE(type, proto, base) \
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type \
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proto(void *cookie, bus_space_handle_t bsh, bus_size_t offset) \
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{ \
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bus_addr_t tag_offset; \
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type value; \
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tag_offset = (bus_addr_t)cookie; \
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value = base(NULL, bsh + tag_offset, offset); \
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return (value); \
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}
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READ_SINGLE(u_int8_t, pxa_bs_r_1, generic_bs_r_1)
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READ_SINGLE(u_int16_t, pxa_bs_r_2, generic_armv4_bs_r_2)
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READ_SINGLE(u_int32_t, pxa_bs_r_4, generic_bs_r_4)
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#undef READ_SINGLE
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#define WRITE_SINGLE(type, proto, base) \
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void \
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proto(void *cookie, bus_space_handle_t bsh, bus_size_t offset, \
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type value) \
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{ \
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bus_addr_t tag_offset; \
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tag_offset = (bus_addr_t)cookie; \
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base(NULL, bsh + tag_offset, offset, value); \
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}
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WRITE_SINGLE(u_int8_t, pxa_bs_w_1, generic_bs_w_1)
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WRITE_SINGLE(u_int16_t, pxa_bs_w_2, generic_armv4_bs_w_2)
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WRITE_SINGLE(u_int32_t, pxa_bs_w_4, generic_bs_w_4)
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#undef WRITE_SINGLE
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#define READ_MULTI(type, proto, base) \
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void \
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proto(void *cookie, bus_space_handle_t bsh, bus_size_t offset, \
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type *dest, bus_size_t count) \
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{ \
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bus_addr_t tag_offset; \
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tag_offset = (bus_addr_t)cookie; \
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base(NULL, bsh + tag_offset, offset, dest, count); \
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}
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READ_MULTI(u_int8_t, pxa_bs_rm_1, generic_bs_rm_1)
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READ_MULTI(u_int16_t, pxa_bs_rm_2, generic_armv4_bs_rm_2)
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READ_MULTI(u_int8_t, pxa_bs_rr_1, generic_bs_rr_1)
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#undef READ_MULTI
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#define WRITE_MULTI(type, proto, base) \
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void \
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proto(void *cookie, bus_space_handle_t bsh, bus_size_t offset, \
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const type *src, bus_size_t count) \
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{ \
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bus_addr_t tag_offset; \
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tag_offset = (bus_addr_t)cookie; \
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base(NULL, bsh + tag_offset, offset, src, count); \
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}
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WRITE_MULTI(u_int8_t, pxa_bs_wm_1, generic_bs_wm_1)
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WRITE_MULTI(u_int16_t, pxa_bs_wm_2, generic_armv4_bs_wm_2)
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#undef WRITE_MULTI
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