/*****************************************************************************File		dmablibAuthor		SasiFunction	Library support for direct memory access & allocation for DMA 		for Linux user mode clients		Requires dmab.o driver to be loaded*****************************************************************************/#ifndef DMABLIB_SASI#define DMABLIB_SASI/* treat as opaque */typedef struct{	unsigned long	size;	/* in - size to allocate */	unsigned long	phys;	/* out - physical address allocated */	void		*virt;	/* rsv - kernel virtual address mapped */	void		*user;	/* out  - user virtual address mapped */}DMABUF_T;int	dmab_init(char *name);/*	in	name	name of device file or NULL for default	ret	-1 on failure*/int	dmab_exit(int h);/*	in	h	return from previous call to dmab_init	ret	0 on failure*/void	*dmab_get(int h, int size, DMABUF_T *t);/*	in	h	return from previous call to dmab_init		size	bytes to allocate	out	t	opaque structure for use in dmab_free	proc	allocates & maps DMA buffer	ret	t->user (0 on failure)*/int	dmab_free(int h, DMABUF_T *t);/*	in	h	return from previous call to dmab_init		t	from previous successful call to dmab_get	proc	unmaps buffer & frees it	ret	0 on success*/#endif