| /* |
| * (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 */ |