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1631 serge 1
/*
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 * ioport.h	Definitions of routines for detecting, reserving and
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 *		allocating system resources.
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 *
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 * Authors:	Linus Torvalds
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 */
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#ifndef _LINUX_IOPORT_H
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#define _LINUX_IOPORT_H
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#ifndef __ASSEMBLY__
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#include 
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#include 
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/*
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 * Resources are tree-like, allowing
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 * nesting etc..
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 */
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struct resource {
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	resource_size_t start;
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	resource_size_t end;
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	const char *name;
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	unsigned long flags;
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	struct resource *parent, *sibling, *child;
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};
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struct resource_list {
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	struct resource_list *next;
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	struct resource *res;
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	struct pci_dev *dev;
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};
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/*
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 * IO resources have these defined flags.
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 */
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#define IORESOURCE_BITS		0x000000ff	/* Bus-specific bits */
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#define IORESOURCE_TYPE_BITS	0x00001f00	/* Resource type */
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#define IORESOURCE_IO		0x00000100	/* PCI/ISA I/O ports */
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#define IORESOURCE_MEM		0x00000200
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#define IORESOURCE_REG		0x00000300	/* Register offsets */
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#define IORESOURCE_IRQ		0x00000400
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#define IORESOURCE_DMA		0x00000800
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#define IORESOURCE_BUS		0x00001000
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#define IORESOURCE_PREFETCH	0x00002000	/* No side effects */
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#define IORESOURCE_READONLY	0x00004000
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#define IORESOURCE_CACHEABLE	0x00008000
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#define IORESOURCE_RANGELENGTH	0x00010000
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#define IORESOURCE_SHADOWABLE	0x00020000
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#define IORESOURCE_SIZEALIGN	0x00040000	/* size indicates alignment */
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#define IORESOURCE_STARTALIGN	0x00080000	/* start field is alignment */
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#define IORESOURCE_MEM_64	0x00100000
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#define IORESOURCE_WINDOW	0x00200000	/* forwarded by bridge */
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#define IORESOURCE_MUXED	0x00400000	/* Resource is software muxed */
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#define IORESOURCE_EXCLUSIVE	0x08000000	/* Userland may not map this resource */
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#define IORESOURCE_DISABLED	0x10000000
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#define IORESOURCE_UNSET	0x20000000	/* No address assigned yet */
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#define IORESOURCE_AUTO		0x40000000
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#define IORESOURCE_BUSY		0x80000000	/* Driver has marked this resource busy */
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/* PnP IRQ specific bits (IORESOURCE_BITS) */
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#define IORESOURCE_IRQ_HIGHEDGE		(1<<0)
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#define IORESOURCE_IRQ_LOWEDGE		(1<<1)
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#define IORESOURCE_IRQ_HIGHLEVEL	(1<<2)
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#define IORESOURCE_IRQ_LOWLEVEL		(1<<3)
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#define IORESOURCE_IRQ_SHAREABLE	(1<<4)
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#define IORESOURCE_IRQ_OPTIONAL 	(1<<5)
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/* PnP DMA specific bits (IORESOURCE_BITS) */
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#define IORESOURCE_DMA_TYPE_MASK	(3<<0)
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#define IORESOURCE_DMA_8BIT		(0<<0)
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#define IORESOURCE_DMA_8AND16BIT	(1<<0)
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#define IORESOURCE_DMA_16BIT		(2<<0)
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#define IORESOURCE_DMA_MASTER		(1<<2)
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#define IORESOURCE_DMA_BYTE		(1<<3)
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#define IORESOURCE_DMA_WORD		(1<<4)
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#define IORESOURCE_DMA_SPEED_MASK	(3<<6)
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#define IORESOURCE_DMA_COMPATIBLE	(0<<6)
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#define IORESOURCE_DMA_TYPEA		(1<<6)
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#define IORESOURCE_DMA_TYPEB		(2<<6)
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#define IORESOURCE_DMA_TYPEF		(3<<6)
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/* PnP memory I/O specific bits (IORESOURCE_BITS) */
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#define IORESOURCE_MEM_WRITEABLE	(1<<0)	/* dup: IORESOURCE_READONLY */
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#define IORESOURCE_MEM_CACHEABLE	(1<<1)	/* dup: IORESOURCE_CACHEABLE */
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#define IORESOURCE_MEM_RANGELENGTH	(1<<2)	/* dup: IORESOURCE_RANGELENGTH */
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#define IORESOURCE_MEM_TYPE_MASK	(3<<3)
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#define IORESOURCE_MEM_8BIT		(0<<3)
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#define IORESOURCE_MEM_16BIT		(1<<3)
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#define IORESOURCE_MEM_8AND16BIT	(2<<3)
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#define IORESOURCE_MEM_32BIT		(3<<3)
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#define IORESOURCE_MEM_SHADOWABLE	(1<<5)	/* dup: IORESOURCE_SHADOWABLE */
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#define IORESOURCE_MEM_EXPANSIONROM	(1<<6)
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/* PnP I/O specific bits (IORESOURCE_BITS) */
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#define IORESOURCE_IO_16BIT_ADDR	(1<<0)
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#define IORESOURCE_IO_FIXED		(1<<1)
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/* PCI ROM control bits (IORESOURCE_BITS) */
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#define IORESOURCE_ROM_ENABLE		(1<<0)	/* ROM is enabled, same as PCI_ROM_ADDRESS_ENABLE */
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#define IORESOURCE_ROM_SHADOW		(1<<1)	/* ROM is copy at C000:0 */
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#define IORESOURCE_ROM_COPY		(1<<2)	/* ROM is alloc'd copy, resource field overlaid */
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#define IORESOURCE_ROM_BIOS_COPY	(1<<3)	/* ROM is BIOS copy, resource field overlaid */
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/* PCI control bits.  Shares IORESOURCE_BITS with above PCI ROM.  */
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#define IORESOURCE_PCI_FIXED		(1<<4)	/* Do not move resource */
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/* PC/ISA/whatever - the normal PC address spaces: IO and memory */
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extern struct resource ioport_resource;
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extern struct resource iomem_resource;
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static inline resource_size_t resource_size(const struct resource *res)
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{
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	return res->end - res->start + 1;
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}
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static inline unsigned long resource_type(const struct resource *res)
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{
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	return res->flags & IORESOURCE_TYPE_BITS;
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}
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#endif /* __ASSEMBLY__ */
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#endif	/* _LINUX_IOPORT_H */