113 lines
2.8 KiB
C
113 lines
2.8 KiB
C
/* $NetBSD: rumpdma.c,v 1.3 2011/07/15 23:40:56 dyoung Exp $ */
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/*
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* Copyright (c) 2009 Antti Kantee. 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 ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* 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 OR
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* 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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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/conf.h>
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#include <sys/device.h>
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#include <sys/kmem.h>
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#include <sys/bus.h>
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/*
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* bus dma "implementation" for rump.
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*
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* In it's current sorry state, this functions with USB drivers.
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*/
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int
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bus_dmamap_create(bus_dma_tag_t tag, bus_size_t sz, int flag, bus_size_t bsz,
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bus_size_t bsz2, int i, bus_dmamap_t *ptr)
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{
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return 0;
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}
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void
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bus_dmamap_destroy(bus_dma_tag_t tag, bus_dmamap_t map)
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{
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panic("unimplemented %s", __func__);
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}
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int
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bus_dmamap_load(bus_dma_tag_t t, bus_dmamap_t a, void *b, bus_size_t c,
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struct proc *d, int e)
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{
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return 0;
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}
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void
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bus_dmamap_unload(bus_dma_tag_t a, bus_dmamap_t b)
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{
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panic("unimplemented %s", __func__);
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}
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void
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bus_dmamap_sync(bus_dma_tag_t a, bus_dmamap_t b, bus_addr_t c,
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bus_size_t d, int e)
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{
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panic("unimplemented %s", __func__);
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}
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int
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bus_dmamem_alloc(bus_dma_tag_t tag, bus_size_t size, bus_size_t align,
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bus_size_t boundary, bus_dma_segment_t *segs, int nsegs,
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int *rsegs, int flags)
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{
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*rsegs = nsegs;
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return 0;
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}
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void
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bus_dmamem_free(bus_dma_tag_t a, bus_dma_segment_t *b, int c)
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{
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panic("unimplemented %s", __func__);
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}
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int
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bus_dmamem_map(bus_dma_tag_t tag, bus_dma_segment_t *segs, int nsegs,
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size_t size, void **kvap, int flags)
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{
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KASSERT(nsegs == 1);
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*kvap = kmem_alloc(size, KM_SLEEP);
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return 0;
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}
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void
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bus_dmamem_unmap(bus_dma_tag_t a, void *kva, size_t b)
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{
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kmem_free(kva, b);
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}
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