1 /* arch/arm/plat-samsung/include/plat/dma-ops.h
3 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #ifndef __SAMSUNG_DMA_OPS_H_
14 #define __SAMSUNG_DMA_OPS_H_ __FILE__
16 #include <linux/dmaengine.h>
18 struct samsung_dma_prep_info {
19 enum dma_transaction_type cap;
20 enum dma_data_direction direction;
24 void (*fp)(void *data);
28 struct samsung_dma_info {
29 enum dma_transaction_type cap;
30 enum dma_data_direction direction;
31 enum dma_slave_buswidth width;
33 struct s3c2410_dma_client *client;
36 struct samsung_dma_ops {
37 unsigned (*request)(enum dma_ch ch, struct samsung_dma_info *info);
38 int (*release)(unsigned ch, struct s3c2410_dma_client *client);
39 int (*prepare)(unsigned ch, struct samsung_dma_prep_info *info);
40 int (*trigger)(unsigned ch);
41 int (*started)(unsigned ch);
42 int (*flush)(unsigned ch);
43 int (*stop)(unsigned ch);
46 extern void *samsung_dmadev_get_ops(void);
47 extern void *s3c_dma_get_ops(void);
49 static inline void *__samsung_dma_get_ops(void)
51 if (samsung_dma_is_dmadev())
52 return samsung_dmadev_get_ops();
54 return s3c_dma_get_ops();
59 * get the set of samsung dma operations
61 #define samsung_dma_get_ops() __samsung_dma_get_ops()
63 #endif /* __SAMSUNG_DMA_OPS_H_ */