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#ifndef __ASM_SH_DMA_H
#define __ASM_SH_DMA_H
#include <asm/io.h> /* need byte IO */
#define MAX_DMA_CHANNELS 8
/* The maximum address that we can perform a DMA transfer to on this platform */
/* Don't define MAX_DMA_ADDRESS; it's useless on the SuperH and any
occurrence should be flagged as an error. */
/* But... */
/* XXX: This is not applicable to SuperH, just needed for alloc_bootmem */
#define MAX_DMA_ADDRESS (PAGE_OFFSET+0x10000000)
extern int request_dma(unsigned int dmanr, const char * device_id); /* reserve a DMA channel */
extern void free_dma(unsigned int dmanr); /* release it again */
#ifdef CONFIG_PCI
extern int isa_dma_bridge_buggy;
#else
#define isa_dma_bridge_buggy (0)
#endif
#endif /* __ASM_SH_DMA_H */
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