[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 pci_register_io_range(phys_addr_t addr, resource_size_t size);
extern unsigned long pci_address_to_pio(phys_addr_t addr);
extern phys_addr_t pci_pio_to_address(unsigned long pio);

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 phys_addr_t pci_pio_to_address(unsigned long pio)
{
	return 0;
}

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
6b884a8d GL	1	#ifndef __OF_ADDRESS_H
	2	#define __OF_ADDRESS_H
	3	#include <linux/ioport.h>
99ce39e3	4	#include <linux/errno.h>
6b884a8d	5	#include <linux/of.h>
fcd71d9c	6	#include <linux/io.h>
6b884a8d	7
29b635c0 AM	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
d0dfa16a RH	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
a850a755	31	#ifdef CONFIG_OF_ADDRESS
0131d897	32	extern u64 of_translate_address(struct device_node np, const __be32 addr);
1f5bef30 GL	33	extern int of_address_to_resource(struct device_node *dev, int index,
1f5bef30 GL	34	struct resource *r);
90e33f62 GL	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);
6b884a8d	39	extern void __iomem of_iomap(struct device_node device, int index);
fcd71d9c SM	40	void __iomem of_io_request_and_map(struct device_node device,
fcd71d9c SM	41	int index, const char *name);
6b884a8d	42
22ae782f GL	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	*/
47b1e689	47	extern const __be32 of_get_address(struct device_node dev, int index,
22ae782f GL	48	u64 size, unsigned int flags);
22ae782f GL	49
41f8bba7	50	extern int pci_register_io_range(phys_addr_t addr, resource_size_t size);
25ff7944	51	extern unsigned long pci_address_to_pio(phys_addr_t addr);
41f8bba7	52	extern phys_addr_t pci_pio_to_address(unsigned long pio);
22ae782f	53
29b635c0 AM	54	extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
	55	struct device_node *node);
	56	extern struct of_pci_range *of_pci_range_parser_one(
	57	struct of_pci_range_parser *parser,
	58	struct of_pci_range *range);
18308c94 GS	59	extern int of_dma_get_range(struct device_node np, u64 dma_addr,
18308c94 GS	60	u64 paddr, u64 size);
92ea637e	61	extern bool of_dma_is_coherent(struct device_node *np);
a850a755	62	#else /* CONFIG_OF_ADDRESS */
fcd71d9c SM	63	static inline void __iomem of_io_request_and_map(struct device_node device,
	64	int index, const char *name)
	65	{
	66	return IOMEM_ERR_PTR(-EINVAL);
	67	}
b1d06b60 GR	68
	69	static inline u64 of_translate_address(struct device_node *np,
	70	const __be32 *addr)
	71	{
	72	return OF_BAD_ADDR;
	73	}
	74
a850a755 GL	75	static inline struct device_node *of_find_matching_node_by_address(
	76	struct device_node *from,
	77	const struct of_device_id *matches,
	78	u64 base_address)
	79	{
	80	return NULL;
	81	}
4acf4b9c	82
47b1e689	83	static inline const __be32 of_get_address(struct device_node dev, int index,
a850a755 GL	84	u64 size, unsigned int flags)
	85	{
	86	return NULL;
	87	}
29b635c0	88
41f8bba7 LD	89	static inline phys_addr_t pci_pio_to_address(unsigned long pio)
	90	{
	91	return 0;
	92	}
	93
29b635c0 AM	94	static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
	95	struct device_node *node)
	96	{
	97	return -1;
	98	}
	99
	100	static inline struct of_pci_range *of_pci_range_parser_one(
	101	struct of_pci_range_parser *parser,
	102	struct of_pci_range *range)
	103	{
	104	return NULL;
	105	}
18308c94 GS	106
	107	static inline int of_dma_get_range(struct device_node np, u64 dma_addr,
	108	u64 paddr, u64 size)
	109	{
	110	return -ENODEV;
	111	}
92ea637e SS	112
	113	static inline bool of_dma_is_coherent(struct device_node *np)
	114	{
	115	return false;
	116	}
a850a755 GL	117	#endif /* CONFIG_OF_ADDRESS */
a850a755 GL	118
4acf4b9c RH	119	#ifdef CONFIG_OF
	120	extern int of_address_to_resource(struct device_node *dev, int index,
	121	struct resource *r);
	122	void __iomem of_iomap(struct device_node node, int index);
	123	#else
	124	static inline int of_address_to_resource(struct device_node *dev, int index,
	125	struct resource *r)
	126	{
	127	return -EINVAL;
	128	}
	129
	130	static inline void __iomem of_iomap(struct device_node device, int index)
	131	{
	132	return NULL;
	133	}
	134	#endif
a850a755 GL	135
a850a755 GL	136	#if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
0131d897	137	extern const __be32 of_get_pci_address(struct device_node dev, int bar_no,
22ae782f GL	138	u64 size, unsigned int flags);
	139	extern int of_pci_address_to_resource(struct device_node *dev, int bar,
	140	struct resource *r);
0b0b0893 LD	141	extern int of_pci_range_to_resource(struct of_pci_range *range,
	142	struct device_node *np,
	143	struct resource *res);
a850a755	144	#else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
22ae782f GL	145	static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
	146	struct resource *r)
	147	{
	148	return -ENOSYS;
	149	}
	150
0131d897	151	static inline const __be32 of_get_pci_address(struct device_node dev,
22ae782f GL	152	int bar_no, u64 size, unsigned int flags)
	153	{
	154	return NULL;
	155	}
0b0b0893 LD	156	static inline int of_pci_range_to_resource(struct of_pci_range *range,
	157	struct device_node *np,
	158	struct resource *res)
83bbde1c LD	159	{
	160	return -ENOSYS;
	161	}
a850a755	162	#endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
22ae782f	163
6b884a8d GL	164	#endif /* __OF_ADDRESS_H */
6b884a8d GL	165