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int_bus_dma.h revision 1.1 
      1 /*	$NetBSD: int_bus_dma.h,v 1.1 2001/10/27 16:17:51 rearnsha Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2001 ARM Ltd
      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  * 3. The name of the company may not be used to endorse or promote
     16  *    products derived from this software without specific prior written
     17  *    permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     20  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     21  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     22  * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
     23  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     25  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _INT_BUS_DMA_H
     33 #define _INT_BUS_DMA_H
     34 
     35 #include <machine/bus.h>
     36 
     37 #ifdef _ARM32_BUS_DMA_PRIVATE
     38 
     39 #define CM_ALIAS_TO_LOCAL(addr) (addr & 0x0fffffff)
     40 #define LOCAL_TO_CM_ALIAS(addr)	(addr | 0x80000000)
     41 
     42 int     integrator_bus_dmamap_load __P((bus_dma_tag_t, bus_dmamap_t, void *,
     43             bus_size_t, struct proc *, int));
     44 int     integrator_bus_dmamap_load_mbuf __P((bus_dma_tag_t, bus_dmamap_t,
     45             struct mbuf *, int));
     46 int     integrator_bus_dmamap_load_uio __P((bus_dma_tag_t, bus_dmamap_t,
     47             struct uio *, int));
     48 
     49 int     integrator_bus_dmamem_alloc __P((bus_dma_tag_t tag, bus_size_t size,
     50             bus_size_t alignment, bus_size_t boundary,
     51             bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags));
     52 void    integrator_bus_dmamem_free __P((bus_dma_tag_t tag,
     53 	    bus_dma_segment_t *segs, int nsegs));
     54 int     integrator_bus_dmamem_map __P((bus_dma_tag_t tag,
     55 	    bus_dma_segment_t *segs, int nsegs, size_t size, caddr_t *kvap,
     56 	    int flags));
     57 paddr_t integrator_bus_dmamem_mmap __P((bus_dma_tag_t tag,
     58 	    bus_dma_segment_t *segs, int nsegs, off_t off, int prot,
     59 	    int flags));
     60 
     61 int     integrator_bus_dmamem_alloc_range __P((bus_dma_tag_t tag,
     62 	    bus_size_t size, bus_size_t alignment, bus_size_t boundary,
     63             bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags,
     64             vaddr_t low, vaddr_t high));
     65 #endif /* _ARM32_BUS_DMA_PRIVATE */
     66 #endif /* _INT_BUS_DMA_H */
     67