| /* arch/arm/plat-samsung/include/plat/dma-ops.h |
| * |
| * Copyright (c) 2011 Samsung Electronics Co., Ltd. |
| * http://www.samsung.com |
| * |
| * Samsung DMA support |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #ifndef __SAMSUNG_DMA_OPS_H_ |
| #define __SAMSUNG_DMA_OPS_H_ __FILE__ |
| |
| #include <linux/dmaengine.h> |
| |
| struct samsung_dma_prep_info { |
| enum dma_transaction_type cap; |
| enum dma_data_direction direction; |
| dma_addr_t buf; |
| unsigned long period; |
| unsigned long len; |
| void (*fp)(void *data); |
| void *fp_param; |
| }; |
| |
| struct samsung_dma_info { |
| enum dma_transaction_type cap; |
| enum dma_data_direction direction; |
| enum dma_slave_buswidth width; |
| dma_addr_t fifo; |
| struct s3c2410_dma_client *client; |
| struct property *dt_dmach_prop; |
| }; |
| |
| struct samsung_dma_ops { |
| unsigned (*request)(enum dma_ch ch, struct samsung_dma_info *info); |
| int (*release)(unsigned ch, struct s3c2410_dma_client *client); |
| int (*prepare)(unsigned ch, struct samsung_dma_prep_info *info); |
| int (*trigger)(unsigned ch); |
| int (*started)(unsigned ch); |
| int (*flush)(unsigned ch); |
| int (*stop)(unsigned ch); |
| }; |
| |
| extern void *samsung_dmadev_get_ops(void); |
| extern void *s3c_dma_get_ops(void); |
| |
| static inline void *__samsung_dma_get_ops(void) |
| { |
| if (samsung_dma_is_dmadev()) |
| return samsung_dmadev_get_ops(); |
| else |
| return s3c_dma_get_ops(); |
| } |
| |
| /* |
| * samsung_dma_get_ops |
| * get the set of samsung dma operations |
| */ |
| #define samsung_dma_get_ops() __samsung_dma_get_ops() |
| |
| #endif /* __SAMSUNG_DMA_OPS_H_ */ |