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Stelian Popfa506a92008-01-31 21:15:53 +00001/*
2 * (C) Copyright 2007
Stelian Popc9e798d2011-11-01 00:00:39 +01003 * Stelian Pop <stelian@popies.net>
Stelian Popfa506a92008-01-31 21:15:53 +00004 * Lead Tech Design <www.leadtechdesign.com>
5 *
6 * See file CREDITS for list of people who contributed to this
7 * project.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 * MA 02111-1307 USA
23 */
24#ifndef __ASM_ARM_DMA_MAPPING_H
25#define __ASM_ARM_DMA_MAPPING_H
26
27enum dma_data_direction {
28 DMA_BIDIRECTIONAL = 0,
29 DMA_TO_DEVICE = 1,
30 DMA_FROM_DEVICE = 2,
31};
32
33static void *dma_alloc_coherent(size_t len, unsigned long *handle)
34{
35 *handle = (unsigned long)malloc(len);
36 return (void *)*handle;
37}
38
39static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
40 enum dma_data_direction dir)
41{
42 return (unsigned long)vaddr;
43}
44
45static inline void dma_unmap_single(volatile void *vaddr, size_t len,
46 unsigned long paddr)
47{
48}
49
50#endif /* __ASM_ARM_DMA_MAPPING_H */