229 lines
6.2 KiB
C
229 lines
6.2 KiB
C
/*-
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* Copyright (c) 2014 Andrew Turner
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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR 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, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include "opt_platform.h"
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#include <sys/param.h>
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__FBSDID("$FreeBSD$");
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <machine/bus.h>
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uint8_t generic_bs_r_1(void *, bus_space_handle_t, bus_size_t);
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uint16_t generic_bs_r_2(void *, bus_space_handle_t, bus_size_t);
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uint32_t generic_bs_r_4(void *, bus_space_handle_t, bus_size_t);
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uint64_t generic_bs_r_8(void *, bus_space_handle_t, bus_size_t);
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void generic_bs_rm_1(void *, bus_space_handle_t, bus_size_t, uint8_t *,
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bus_size_t);
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void generic_bs_rm_2(void *, bus_space_handle_t, bus_size_t, uint16_t *,
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bus_size_t);
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void generic_bs_rm_4(void *, bus_space_handle_t, bus_size_t, uint32_t *,
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bus_size_t);
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void generic_bs_rm_8(void *, bus_space_handle_t, bus_size_t, uint64_t *,
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bus_size_t);
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void generic_bs_rr_1(void *, bus_space_handle_t, bus_size_t, uint8_t *,
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bus_size_t);
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void generic_bs_rr_2(void *, bus_space_handle_t, bus_size_t, uint16_t *,
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bus_size_t);
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void generic_bs_rr_4(void *, bus_space_handle_t, bus_size_t, uint32_t *,
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bus_size_t);
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void generic_bs_rr_8(void *, bus_space_handle_t, bus_size_t, uint64_t *,
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bus_size_t);
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void generic_bs_w_1(void *, bus_space_handle_t, bus_size_t, uint8_t);
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void generic_bs_w_2(void *, bus_space_handle_t, bus_size_t, uint16_t);
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void generic_bs_w_4(void *, bus_space_handle_t, bus_size_t, uint32_t);
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void generic_bs_w_8(void *, bus_space_handle_t, bus_size_t, uint64_t);
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void generic_bs_wm_1(void *, bus_space_handle_t, bus_size_t, const uint8_t *,
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bus_size_t);
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void generic_bs_wm_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *,
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bus_size_t);
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void generic_bs_wm_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *,
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bus_size_t);
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void generic_bs_wm_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *,
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bus_size_t);
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void generic_bs_wr_1(void *, bus_space_handle_t, bus_size_t, const uint8_t *,
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bus_size_t);
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void generic_bs_wr_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *,
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bus_size_t);
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void generic_bs_wr_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *,
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bus_size_t);
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void generic_bs_wr_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *,
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bus_size_t);
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static int
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generic_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags,
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bus_space_handle_t *bshp)
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{
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void *va;
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va = pmap_mapdev(bpa, size);
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if (va == NULL)
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return (ENOMEM);
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*bshp = (bus_space_handle_t)va;
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return (0);
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}
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static void
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generic_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size)
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{
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pmap_unmapdev(bsh, size);
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}
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static void
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generic_bs_barrier(void *t, bus_space_handle_t bsh, bus_size_t offset,
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bus_size_t size, int flags)
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{
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}
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static int
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generic_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset,
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bus_size_t size, bus_space_handle_t *nbshp)
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{
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*nbshp = bsh + offset;
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return (0);
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}
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struct bus_space memmap_bus = {
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/* cookie */
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.bs_cookie = NULL,
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/* mapping/unmapping */
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.bs_map = generic_bs_map,
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.bs_unmap = generic_bs_unmap,
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.bs_subregion = generic_bs_subregion,
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/* allocation/deallocation */
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.bs_alloc = NULL,
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.bs_free = NULL,
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/* barrier */
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.bs_barrier = generic_bs_barrier,
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/* read single */
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.bs_r_1 = generic_bs_r_1,
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.bs_r_2 = generic_bs_r_2,
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.bs_r_4 = generic_bs_r_4,
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.bs_r_8 = generic_bs_r_8,
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/* read multiple */
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.bs_rm_1 = generic_bs_rm_1,
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.bs_rm_2 = generic_bs_rm_2,
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.bs_rm_4 = generic_bs_rm_4,
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.bs_rm_8 = generic_bs_rm_8,
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/* read region */
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.bs_rr_1 = generic_bs_rr_1,
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.bs_rr_2 = generic_bs_rr_2,
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.bs_rr_4 = generic_bs_rr_4,
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.bs_rr_8 = generic_bs_rr_8,
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/* write single */
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.bs_w_1 = generic_bs_w_1,
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.bs_w_2 = generic_bs_w_2,
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.bs_w_4 = generic_bs_w_4,
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.bs_w_8 = generic_bs_w_8,
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/* write multiple */
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.bs_wm_1 = generic_bs_wm_1,
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.bs_wm_2 = generic_bs_wm_2,
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.bs_wm_4 = generic_bs_wm_4,
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.bs_wm_8 = generic_bs_wm_8,
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/* write region */
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.bs_wr_1 = generic_bs_wr_1,
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.bs_wr_2 = generic_bs_wr_2,
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.bs_wr_4 = generic_bs_wr_4,
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.bs_wr_8 = generic_bs_wr_8,
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/* set multiple */
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.bs_sm_1 = NULL,
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.bs_sm_2 = NULL,
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.bs_sm_4 = NULL,
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.bs_sm_8 = NULL,
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/* set region */
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.bs_sr_1 = NULL,
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.bs_sr_2 = NULL,
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.bs_sr_4 = NULL,
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.bs_sr_8 = NULL,
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/* copy */
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.bs_c_1 = NULL,
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.bs_c_2 = NULL,
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.bs_c_4 = NULL,
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.bs_c_8 = NULL,
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/* read single stream */
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.bs_r_1_s = NULL,
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.bs_r_2_s = NULL,
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.bs_r_4_s = NULL,
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.bs_r_8_s = NULL,
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/* read multiple stream */
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.bs_rm_1_s = generic_bs_rm_1,
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.bs_rm_2_s = generic_bs_rm_2,
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.bs_rm_4_s = generic_bs_rm_4,
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.bs_rm_8_s = generic_bs_rm_8,
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/* read region stream */
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.bs_rr_1_s = NULL,
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.bs_rr_2_s = NULL,
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.bs_rr_4_s = NULL,
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.bs_rr_8_s = NULL,
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/* write single stream */
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.bs_w_1_s = NULL,
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.bs_w_2_s = NULL,
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.bs_w_4_s = NULL,
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.bs_w_8_s = NULL,
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/* write multiple stream */
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.bs_wm_1_s = generic_bs_wm_1,
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.bs_wm_2_s = generic_bs_wm_2,
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.bs_wm_4_s = generic_bs_wm_4,
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.bs_wm_8_s = generic_bs_wm_8,
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/* write region stream */
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.bs_wr_1_s = NULL,
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.bs_wr_2_s = NULL,
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.bs_wr_4_s = NULL,
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.bs_wr_8_s = NULL,
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};
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#ifdef FDT
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bus_space_tag_t fdtbus_bs_tag = &memmap_bus;
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#endif
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