46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
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/* arch/arm/mach-s3c2410/dma.h
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*
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* Copyright (C) 2006 Simtec Electronics
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* Ben Dooks <ben@simtec.co.uk>
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*
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* Samsung S3C24XX DMA support
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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extern struct sysdev_class dma_sysclass;
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extern struct s3c2410_dma_chan s3c2410_chans[S3C2410_DMA_CHANNELS];
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#define DMA_CH_VALID (1<<31)
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struct s3c24xx_dma_addr {
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unsigned long from;
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unsigned long to;
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};
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/* struct s3c24xx_dma_map
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*
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* this holds the mapping information for the channel selected
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* to be connected to the specified device
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*/
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struct s3c24xx_dma_map {
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const char *name;
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struct s3c24xx_dma_addr hw_addr;
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unsigned long channels[S3C2410_DMA_CHANNELS];
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};
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struct s3c24xx_dma_selection {
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struct s3c24xx_dma_map *map;
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unsigned long map_size;
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unsigned long dcon_mask;
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void (*select)(struct s3c2410_dma_chan *chan,
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struct s3c24xx_dma_map *map);
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};
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extern int s3c24xx_dma_init_map(struct s3c24xx_dma_selection *sel);
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