sys/arch/arm/at91/at91_bus_dma.c

   1 /*      $NetBSD: at91_bus_dma.c,v 1.2 2008/07/03 01:15:38 matt Exp $ */
   2
   3 /*
   4  * Copyright (c) 2004 Jesse Off
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY FUJITSU COMPONENT LIMITED AND GENETEC
  17  * CORPORATION ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  18  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  20  * DISCLAIMED.  IN NO EVENT SHALL FUJITSU COMPONENT LIMITED OR GENETEC
  21  * CORPORATION BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  25  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  26  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  27  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  */
  30
  31 /*
  32  * bus_dma tag for EP93xx CPUs
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __KERNEL_RCSID(0, "$NetBSD: at91_bus_dma.c,v 1.2 2008/07/03 01:15:38 matt Exp $");
  37
  38 #include <sys/param.h>
  39 #include <sys/types.h>
  40 #include <sys/device.h>
  41 #include <sys/systm.h>
  42 #include <sys/extent.h>
  43
  44 #define _ARM32_BUS_DMA_PRIVATE
  45 #include <machine/bus.h>
  46
  47 #include <arm/at91/at91var.h>
  48
  49 struct arm32_bus_dma_tag at91_bd_tag = {
  50         NULL,                   /* _ranges: set by platform specific routine */
  51         0,                      /* _nranges */
  52
  53         NULL,                   /* _cookie */
  54
  55         _bus_dmamap_create,
  56         _bus_dmamap_destroy,
  57         _bus_dmamap_load,
  58         _bus_dmamap_load_mbuf,
  59         _bus_dmamap_load_uio,
  60         _bus_dmamap_load_raw,
  61         _bus_dmamap_unload,
  62         _bus_dmamap_sync,
  63         NULL,                   /* sync_post */
  64
  65         _bus_dmamem_alloc,
  66         _bus_dmamem_free,
  67         _bus_dmamem_map,
  68         _bus_dmamem_unmap,
  69         _bus_dmamem_mmap,
  70 };