[deliverable/linux.git] / include / linux / of_address.h

#ifndef __OF_ADDRESS_H
#define __OF_ADDRESS_H
#include <linux/ioport.h>
#include <linux/errno.h>
#include <linux/of.h>
#include <linux/io.h>

struct of_pci_range_parser {
	struct device_node *node;
	const __be32 *range;
	const __be32 *end;
	int np;
	int pna;
};

struct of_pci_range {
	u32 pci_space;
	u64 pci_addr;
	u64 cpu_addr;
	u64 size;
	u32 flags;
};

#define for_each_of_pci_range(parser, range) \
	for (; of_pci_range_parser_one(parser, range);)

/* Translate a DMA address from device space to CPU space */
extern u64 of_translate_dma_address(struct device_node *dev,
				    const __be32 *in_addr);

#ifdef CONFIG_OF_ADDRESS
extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
extern int of_address_to_resource(struct device_node *dev, int index,
				  struct resource *r);
extern struct device_node *of_find_matching_node_by_address(
					struct device_node *from,
					const struct of_device_id *matches,
					u64 base_address);
extern void __iomem *of_iomap(struct device_node *device, int index);
void __iomem *of_io_request_and_map(struct device_node *device,
				    int index, const char *name);

/* Extract an address from a device, returns the region size and
 * the address space flags too. The PCI version uses a BAR number
 * instead of an absolute index
 */
extern const __be32 *of_get_address(struct device_node *dev, int index,
			   u64 *size, unsigned int *flags);

extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
			struct device_node *node);
extern struct of_pci_range *of_pci_range_parser_one(
					struct of_pci_range_parser *parser,
					struct of_pci_range *range);
extern int of_dma_get_range(struct device_node *np, u64 *dma_addr,
				u64 *paddr, u64 *size);
extern bool of_dma_is_coherent(struct device_node *np);
#else /* CONFIG_OF_ADDRESS */
static inline void __iomem *of_io_request_and_map(struct device_node *device,
						  int index, const char *name)
{
	return IOMEM_ERR_PTR(-EINVAL);
}

static inline u64 of_translate_address(struct device_node *np,
				       const __be32 *addr)
{
	return OF_BAD_ADDR;
}

static inline struct device_node *of_find_matching_node_by_address(
					struct device_node *from,
					const struct of_device_id *matches,
					u64 base_address)
{
	return NULL;
}

static inline const __be32 *of_get_address(struct device_node *dev, int index,
					u64 *size, unsigned int *flags)
{
	return NULL;
}

static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
			struct device_node *node)
{
	return -1;
}

static inline struct of_pci_range *of_pci_range_parser_one(
					struct of_pci_range_parser *parser,
					struct of_pci_range *range)
{
	return NULL;
}

static inline int of_dma_get_range(struct device_node *np, u64 *dma_addr,
				u64 *paddr, u64 *size)
{
	return -ENODEV;
}

static inline bool of_dma_is_coherent(struct device_node *np)
{
	return false;
}
#endif /* CONFIG_OF_ADDRESS */

#ifdef CONFIG_OF
extern int of_address_to_resource(struct device_node *dev, int index,
				  struct resource *r);
void __iomem *of_iomap(struct device_node *node, int index);
#else
static inline int of_address_to_resource(struct device_node *dev, int index,
					 struct resource *r)
{
	return -EINVAL;
}

static inline void __iomem *of_iomap(struct device_node *device, int index)
{
	return NULL;
}
#endif

#if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
			       u64 *size, unsigned int *flags);
extern int of_pci_address_to_resource(struct device_node *dev, int bar,
				      struct resource *r);
extern int of_pci_range_to_resource(struct of_pci_range *range,
				    struct device_node *np,
				    struct resource *res);
#else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
				             struct resource *r)
{
	return -ENOSYS;
}

static inline const __be32 *of_get_pci_address(struct device_node *dev,
		int bar_no, u64 *size, unsigned int *flags)
{
	return NULL;
}
static inline int of_pci_range_to_resource(struct of_pci_range *range,
					   struct device_node *np,
					   struct resource *res)
{
	return -ENOSYS;
}
#endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */

#endif /* __OF_ADDRESS_H */
Commit	Line	Data
	1	#ifndef __OF_ADDRESS_H
	2	#define __OF_ADDRESS_H
	3	#include <linux/ioport.h>
	4	#include <linux/errno.h>
	5	#include <linux/of.h>
	6	#include <linux/io.h>
	7
	8	struct of_pci_range_parser {
	9	struct device_node *node;
	10	const __be32 *range;
	11	const __be32 *end;
	12	int np;
	13	int pna;
	14	};
	15
	16	struct of_pci_range {
	17	u32 pci_space;
	18	u64 pci_addr;
	19	u64 cpu_addr;
	20	u64 size;
	21	u32 flags;
	22	};
	23
	24	#define for_each_of_pci_range(parser, range) \
	25	for (; of_pci_range_parser_one(parser, range);)
	26
	27	/* Translate a DMA address from device space to CPU space */
	28	extern u64 of_translate_dma_address(struct device_node *dev,
	29	const __be32 *in_addr);
	30
	31	#ifdef CONFIG_OF_ADDRESS
	32	extern u64 of_translate_address(struct device_node np, const __be32 addr);
	33	extern int of_address_to_resource(struct device_node *dev, int index,
	34	struct resource *r);
	35	extern struct device_node *of_find_matching_node_by_address(
	36	struct device_node *from,
	37	const struct of_device_id *matches,
	38	u64 base_address);
	39	extern void __iomem of_iomap(struct device_node device, int index);
	40	void __iomem of_io_request_and_map(struct device_node device,
	41	int index, const char *name);
	42
	43	/* Extract an address from a device, returns the region size and
	44	* the address space flags too. The PCI version uses a BAR number
	45	* instead of an absolute index
	46	*/
	47	extern const __be32 of_get_address(struct device_node dev, int index,
	48	u64 size, unsigned int flags);
	49
	50	extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
	51	struct device_node *node);
	52	extern struct of_pci_range *of_pci_range_parser_one(
	53	struct of_pci_range_parser *parser,
	54	struct of_pci_range *range);
	55	extern int of_dma_get_range(struct device_node np, u64 dma_addr,
	56	u64 paddr, u64 size);
	57	extern bool of_dma_is_coherent(struct device_node *np);
	58	#else /* CONFIG_OF_ADDRESS */
	59	static inline void __iomem of_io_request_and_map(struct device_node device,
	60	int index, const char *name)
	61	{
	62	return IOMEM_ERR_PTR(-EINVAL);
	63	}
	64
	65	static inline u64 of_translate_address(struct device_node *np,
	66	const __be32 *addr)
	67	{
	68	return OF_BAD_ADDR;
	69	}
	70
	71	static inline struct device_node *of_find_matching_node_by_address(
	72	struct device_node *from,
	73	const struct of_device_id *matches,
	74	u64 base_address)
	75	{
	76	return NULL;
	77	}
	78
	79	static inline const __be32 of_get_address(struct device_node dev, int index,
	80	u64 size, unsigned int flags)
	81	{
	82	return NULL;
	83	}
	84
	85	static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
	86	struct device_node *node)
	87	{
	88	return -1;
	89	}
	90
	91	static inline struct of_pci_range *of_pci_range_parser_one(
	92	struct of_pci_range_parser *parser,
	93	struct of_pci_range *range)
	94	{
	95	return NULL;
	96	}
	97
	98	static inline int of_dma_get_range(struct device_node np, u64 dma_addr,
	99	u64 paddr, u64 size)
	100	{
	101	return -ENODEV;
	102	}
	103
	104	static inline bool of_dma_is_coherent(struct device_node *np)
	105	{
	106	return false;
	107	}
	108	#endif /* CONFIG_OF_ADDRESS */
	109
	110	#ifdef CONFIG_OF
	111	extern int of_address_to_resource(struct device_node *dev, int index,
	112	struct resource *r);
	113	void __iomem of_iomap(struct device_node node, int index);
	114	#else
	115	static inline int of_address_to_resource(struct device_node *dev, int index,
	116	struct resource *r)
	117	{
	118	return -EINVAL;
	119	}
	120
	121	static inline void __iomem of_iomap(struct device_node device, int index)
	122	{
	123	return NULL;
	124	}
	125	#endif
	126
	127	#if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
	128	extern const __be32 of_get_pci_address(struct device_node dev, int bar_no,
	129	u64 size, unsigned int flags);
	130	extern int of_pci_address_to_resource(struct device_node *dev, int bar,
	131	struct resource *r);
	132	extern int of_pci_range_to_resource(struct of_pci_range *range,
	133	struct device_node *np,
	134	struct resource *res);
	135	#else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
	136	static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
	137	struct resource *r)
	138	{
	139	return -ENOSYS;
	140	}
	141
	142	static inline const __be32 of_get_pci_address(struct device_node dev,
	143	int bar_no, u64 size, unsigned int flags)
	144	{
	145	return NULL;
	146	}
	147	static inline int of_pci_range_to_resource(struct of_pci_range *range,
	148	struct device_node *np,
	149	struct resource *res)
	150	{
	151	return -ENOSYS;
	152	}
	153	#endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
	154
	155	#endif /* __OF_ADDRESS_H */
	156