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/* arch/arm/mach-s3c2410/dma.h
*
* Copyright (C) 2006 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
*
* Samsung S3C24XX 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.
*/
extern struct sysdev_class dma_sysclass;
extern struct s3c2410_dma_chan s3c2410_chans[S3C2410_DMA_CHANNELS];
#define DMA_CH_VALID (1<<31)
struct s3c24xx_dma_addr {
unsigned long from;
unsigned long to;
};
/* struct s3c24xx_dma_map
*
* this holds the mapping information for the channel selected
* to be connected to the specified device
*/
struct s3c24xx_dma_map {
const char *name;
struct s3c24xx_dma_addr hw_addr;
unsigned long channels[S3C2410_DMA_CHANNELS];
};
struct s3c24xx_dma_selection {
struct s3c24xx_dma_map *map;
unsigned long map_size;
unsigned long dcon_mask;
void (*select)(struct s3c2410_dma_chan *chan,
struct s3c24xx_dma_map *map);
};
extern int s3c24xx_dma_init_map(struct s3c24xx_dma_selection *sel);
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