/* * ioport.h	Definitions of routines for detecting, reserving and *		allocating system resources. * * Authors:	Linus Torvalds */#ifndef _LINUX_IOPORT_H#define _LINUX_IOPORT_H/* * Resources are tree-like, allowing * nesting etc.. */struct resource {	const char *name;	unsigned long start, end;	unsigned long flags;	struct resource *parent, *sibling, *child;};/* * IO resources have these defined flags. */#define IORESOURCE_BITS		0x000000ff	/* Bus-specific bits */#define IORESOURCE_IO		0x00000100	/* Resource type */#define IORESOURCE_MEM		0x00000200#define IORESOURCE_IRQ		0x00000400#define IORESOURCE_DMA		0x00000800#define IORESOURCE_PREFETCH	0x00001000	/* No side effects */#define IORESOURCE_READONLY	0x00002000#define IORESOURCE_CACHEABLE	0x00004000#define IORESOURCE_RANGELENGTH	0x00008000#define IORESOURCE_SHADOWABLE	0x00010000#define IORESOURCE_UNSET	0x20000000#define IORESOURCE_AUTO		0x40000000#define IORESOURCE_BUSY		0x80000000	/* Driver has marked this resource busy *//* ISA PnP IRQ specific bits (IORESOURCE_BITS) */#define IORESOURCE_IRQ_HIGHEDGE		(1<<0)#define IORESOURCE_IRQ_LOWEDGE		(1<<1)#define IORESOURCE_IRQ_HIGHLEVEL	(1<<2)#define IORESOURCE_IRQ_LOWLEVEL		(1<<3)/* ISA PnP DMA specific bits (IORESOURCE_BITS) */#define IORESOURCE_DMA_TYPE_MASK	(3<<0)#define IORESOURCE_DMA_8BIT		(0<<0)#define IORESOURCE_DMA_8AND16BIT	(1<<0)#define IORESOURCE_DMA_16BIT		(2<<0)#define IORESOURCE_DMA_MASTER		(1<<2)#define IORESOURCE_DMA_BYTE		(1<<3)#define IORESOURCE_DMA_WORD		(1<<4)#define IORESOURCE_DMA_SPEED_MASK	(3<<6)#define IORESOURCE_DMA_COMPATIBLE	(0<<6)#define IORESOURCE_DMA_TYPEA		(1<<6)#define IORESOURCE_DMA_TYPEB		(2<<6)#define IORESOURCE_DMA_TYPEF		(3<<6)/* ISA PnP memory I/O specific bits (IORESOURCE_BITS) */#define IORESOURCE_MEM_WRITEABLE	(1<<0)	/* dup: IORESOURCE_READONLY */#define IORESOURCE_MEM_CACHEABLE	(1<<1)	/* dup: IORESOURCE_CACHEABLE */#define IORESOURCE_MEM_RANGELENGTH	(1<<2)	/* dup: IORESOURCE_RANGELENGTH */#define IORESOURCE_MEM_TYPE_MASK	(3<<3)#define IORESOURCE_MEM_8BIT		(0<<3)#define IORESOURCE_MEM_16BIT		(1<<3)#define IORESOURCE_MEM_8AND16BIT	(2<<3)#define IORESOURCE_MEM_SHADOWABLE	(1<<5)	/* dup: IORESOURCE_SHADOWABLE */#define IORESOURCE_MEM_EXPANSIONROM	(1<<6)/* PC/ISA/whatever - the normal PC address spaces: IO and memory */extern struct resource ioport_resource;extern struct resource iomem_resource;extern int get_resource_list(struct resource *, char *buf, int size);extern int request_resource(struct resource *root, struct resource *new);extern int release_resource(struct resource *new);extern int allocate_resource(struct resource *root, struct resource *new,			     unsigned long size,			     unsigned long min, unsigned long max,			     unsigned long align);/* Convenience shorthand with allocation */#define request_region(start,n,name)	__request_region(&ioport_resource, (start), (n), (name))#define request_mem_region(start,n,name) __request_region(&iomem_resource, (start), (n), (name))extern struct resource * __request_region(struct resource *, unsigned long start, unsigned long n, const char *name);/* Compatibility cruft */#define check_region(start,n)	__check_region(&ioport_resource, (start), (n))#define release_region(start,n)	__release_region(&ioport_resource, (start), (n))#define check_mem_region(start,n)	__check_region(&iomem_resource, (start), (n))#define release_mem_region(start,n)	__release_region(&iomem_resource, (start), (n))extern int __check_region(struct resource *, unsigned long, unsigned long);extern void __release_region(struct resource *, unsigned long, unsigned long);#define get_ioport_list(buf)	get_resource_list(&ioport_resource, buf, PAGE_SIZE)#define get_mem_list(buf)	get_resource_list(&iomem_resource, buf, PAGE_SIZE)#define HAVE_AUTOIRQextern void autoirq_setup(int waittime);extern int autoirq_report(int waittime);#endif	/* _LINUX_IOPORT_H */