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bcm2835_dma.c revision 1.1 
      1 /*	$NetBSD: bcm2835_dma.c,v 1.1 2012/07/26 06:21:57 skrll Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2012 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Nick Hudson
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: bcm2835_dma.c,v 1.1 2012/07/26 06:21:57 skrll Exp $");
     34 
     35 #define _ARM32_BUS_DMA_PRIVATE
     36 
     37 #include <sys/param.h>
     38 #include <sys/bus.h>
     39 
     40 struct arm32_bus_dma_tag bcm2835_bus_dma_tag = {
     41 	NULL,			/* _ranges: set by platform specific routine */
     42 	0,			/* _nranges */
     43 
     44 	NULL,			/* _cookie */
     45 
     46 	_bus_dmamap_create,
     47 	_bus_dmamap_destroy,
     48 	_bus_dmamap_load,
     49 	_bus_dmamap_load_mbuf,
     50 	_bus_dmamap_load_uio,
     51 	_bus_dmamap_load_raw,
     52 	_bus_dmamap_unload,
     53 	_bus_dmamap_sync,
     54 	NULL,			/* sync_post */
     55 
     56 	_bus_dmamem_alloc,
     57 	_bus_dmamem_free,
     58 	_bus_dmamem_map,
     59 	_bus_dmamem_unmap,
     60 	_bus_dmamem_mmap,
     61 };
     62