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/*
* (C) Copyright 2007
* Stelian Pop <stelian@popies.net>
* Lead Tech Design <www.leadtechdesign.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_ARM_DMA_MAPPING_H
#define __ASM_ARM_DMA_MAPPING_H
enum dma_data_direction {
DMA_BIDIRECTIONAL = 0,
DMA_TO_DEVICE = 1,
DMA_FROM_DEVICE = 2,
};
static void *dma_alloc_coherent(size_t len, unsigned long *handle)
{
*handle = (unsigned long)malloc(len);
return (void *)*handle;
}
static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
enum dma_data_direction dir)
{
return (unsigned long)vaddr;
}
static inline void dma_unmap_single(volatile void *vaddr, size_t len,
unsigned long paddr)
{
}
#endif /* __ASM_ARM_DMA_MAPPING_H */
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