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>
19 struct samsung_dma_req {
20 enum dma_transaction_type cap;
21 struct s3c2410_dma_client *client;
24 struct samsung_dma_prep {
25 enum dma_transaction_type cap;
26 enum dma_transfer_direction direction;
30 void (*fp)(void *data);
34 struct samsung_dma_config {
35 enum dma_transfer_direction direction;
36 enum dma_slave_buswidth width;
40 struct samsung_dma_ops {
41 unsigned (*request)(enum dma_ch ch, struct samsung_dma_req *param,
42 struct device *dev, char *ch_name);
43 int (*release)(unsigned ch, void *param);
44 int (*config)(unsigned ch, struct samsung_dma_config *param);
45 int (*prepare)(unsigned ch, struct samsung_dma_prep *param);
46 int (*trigger)(unsigned ch);
47 int (*started)(unsigned ch);
48 int (*flush)(unsigned ch);
49 int (*stop)(unsigned ch);
52 extern void *samsung_dmadev_get_ops(void);
53 extern void *s3c_dma_get_ops(void);
55 static inline void *__samsung_dma_get_ops(void)
57 if (samsung_dma_is_dmadev())
58 return samsung_dmadev_get_ops();
60 return s3c_dma_get_ops();
65 * get the set of samsung dma operations
67 #define samsung_dma_get_ops() __samsung_dma_get_ops()
69 #endif /* __SAMSUNG_DMA_OPS_H_ */