1*819833afSPeter Tyser /* 2*819833afSPeter Tyser * (C) Copyright 2007 3*819833afSPeter Tyser * Stelian Pop <stelian.pop@leadtechdesign.com> 4*819833afSPeter Tyser * Lead Tech Design <www.leadtechdesign.com> 5*819833afSPeter Tyser * 6*819833afSPeter Tyser * See file CREDITS for list of people who contributed to this 7*819833afSPeter Tyser * project. 8*819833afSPeter Tyser * 9*819833afSPeter Tyser * This program is free software; you can redistribute it and/or 10*819833afSPeter Tyser * modify it under the terms of the GNU General Public License as 11*819833afSPeter Tyser * published by the Free Software Foundation; either version 2 of 12*819833afSPeter Tyser * the License, or (at your option) any later version. 13*819833afSPeter Tyser * 14*819833afSPeter Tyser * This program is distributed in the hope that it will be useful, 15*819833afSPeter Tyser * but WITHOUT ANY WARRANTY; without even the implied warranty of 16*819833afSPeter Tyser * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17*819833afSPeter Tyser * GNU General Public License for more details. 18*819833afSPeter Tyser * 19*819833afSPeter Tyser * You should have received a copy of the GNU General Public License 20*819833afSPeter Tyser * along with this program; if not, write to the Free Software 21*819833afSPeter Tyser * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 22*819833afSPeter Tyser * MA 02111-1307 USA 23*819833afSPeter Tyser */ 24*819833afSPeter Tyser #ifndef __ASM_ARM_DMA_MAPPING_H 25*819833afSPeter Tyser #define __ASM_ARM_DMA_MAPPING_H 26*819833afSPeter Tyser 27*819833afSPeter Tyser enum dma_data_direction { 28*819833afSPeter Tyser DMA_BIDIRECTIONAL = 0, 29*819833afSPeter Tyser DMA_TO_DEVICE = 1, 30*819833afSPeter Tyser DMA_FROM_DEVICE = 2, 31*819833afSPeter Tyser }; 32*819833afSPeter Tyser 33*819833afSPeter Tyser static void *dma_alloc_coherent(size_t len, unsigned long *handle) 34*819833afSPeter Tyser { 35*819833afSPeter Tyser *handle = (unsigned long)malloc(len); 36*819833afSPeter Tyser return (void *)*handle; 37*819833afSPeter Tyser } 38*819833afSPeter Tyser 39*819833afSPeter Tyser static inline unsigned long dma_map_single(volatile void *vaddr, size_t len, 40*819833afSPeter Tyser enum dma_data_direction dir) 41*819833afSPeter Tyser { 42*819833afSPeter Tyser return (unsigned long)vaddr; 43*819833afSPeter Tyser } 44*819833afSPeter Tyser 45*819833afSPeter Tyser static inline void dma_unmap_single(volatile void *vaddr, size_t len, 46*819833afSPeter Tyser unsigned long paddr) 47*819833afSPeter Tyser { 48*819833afSPeter Tyser } 49*819833afSPeter Tyser 50*819833afSPeter Tyser #endif /* __ASM_ARM_DMA_MAPPING_H */ 51