[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>

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);)

static inline void of_pci_range_to_resource(struct of_pci_range *range,
					    struct device_node *np,
					    struct resource *res)
{
	res->flags = range->flags;
	res->start = range->cpu_addr;
	res->end = range->cpu_addr + range->size - 1;
	res->parent = res->child = res->sibling = NULL;
	res->name = np->full_name;
}

/* 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 bool of_can_translate_address(struct device_node *dev);
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);

/* 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 unsigned long pci_address_to_pio(phys_addr_t addr);

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);
#else /* CONFIG_OF_ADDRESS */
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;
}
#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);
#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;
}
#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 GL	5	#include <linux/of.h>
6b884a8d GL	6
29b635c0 AM	7	struct of_pci_range_parser {
	8	struct device_node *node;
	9	const __be32 *range;
	10	const __be32 *end;
	11	int np;
	12	int pna;
	13	};
	14
	15	struct of_pci_range {
	16	u32 pci_space;
	17	u64 pci_addr;
	18	u64 cpu_addr;
	19	u64 size;
	20	u32 flags;
	21	};
	22
	23	#define for_each_of_pci_range(parser, range) \
	24	for (; of_pci_range_parser_one(parser, range);)
	25
	26	static inline void of_pci_range_to_resource(struct of_pci_range *range,
	27	struct device_node *np,
	28	struct resource *res)
	29	{
	30	res->flags = range->flags;
	31	res->start = range->cpu_addr;
	32	res->end = range->cpu_addr + range->size - 1;
	33	res->parent = res->child = res->sibling = NULL;
	34	res->name = np->full_name;
	35	}
	36
d0dfa16a RH	37	/* Translate a DMA address from device space to CPU space */
	38	extern u64 of_translate_dma_address(struct device_node *dev,
	39	const __be32 *in_addr);
	40
a850a755	41	#ifdef CONFIG_OF_ADDRESS
0131d897	42	extern u64 of_translate_address(struct device_node np, const __be32 addr);
5d61b165	43	extern bool of_can_translate_address(struct device_node *dev);
1f5bef30 GL	44	extern int of_address_to_resource(struct device_node *dev, int index,
1f5bef30 GL	45	struct resource *r);
90e33f62 GL	46	extern struct device_node *of_find_matching_node_by_address(
	47	struct device_node *from,
	48	const struct of_device_id *matches,
	49	u64 base_address);
6b884a8d GL	50	extern void __iomem of_iomap(struct device_node device, int index);
6b884a8d GL	51
22ae782f GL	52	/* Extract an address from a device, returns the region size and
	53	* the address space flags too. The PCI version uses a BAR number
	54	* instead of an absolute index
	55	*/
47b1e689	56	extern const __be32 of_get_address(struct device_node dev, int index,
22ae782f GL	57	u64 size, unsigned int flags);
22ae782f GL	58
25ff7944	59	extern unsigned long pci_address_to_pio(phys_addr_t addr);
22ae782f	60
29b635c0 AM	61	extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
	62	struct device_node *node);
	63	extern struct of_pci_range *of_pci_range_parser_one(
	64	struct of_pci_range_parser *parser,
	65	struct of_pci_range *range);
18308c94 GS	66	extern int of_dma_get_range(struct device_node np, u64 dma_addr,
18308c94 GS	67	u64 paddr, u64 size);
a850a755	68	#else /* CONFIG_OF_ADDRESS */
a850a755 GL	69	static inline struct device_node *of_find_matching_node_by_address(
	70	struct device_node *from,
	71	const struct of_device_id *matches,
	72	u64 base_address)
	73	{
	74	return NULL;
	75	}
4acf4b9c	76
47b1e689	77	static inline const __be32 of_get_address(struct device_node dev, int index,
a850a755 GL	78	u64 size, unsigned int flags)
	79	{
	80	return NULL;
	81	}
29b635c0 AM	82
	83	static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
	84	struct device_node *node)
	85	{
	86	return -1;
	87	}
	88
	89	static inline struct of_pci_range *of_pci_range_parser_one(
	90	struct of_pci_range_parser *parser,
	91	struct of_pci_range *range)
	92	{
	93	return NULL;
	94	}
18308c94 GS	95
	96	static inline int of_dma_get_range(struct device_node np, u64 dma_addr,
	97	u64 paddr, u64 size)
	98	{
	99	return -ENODEV;
	100	}
a850a755 GL	101	#endif /* CONFIG_OF_ADDRESS */
a850a755 GL	102
4acf4b9c RH	103	#ifdef CONFIG_OF
	104	extern int of_address_to_resource(struct device_node *dev, int index,
	105	struct resource *r);
	106	void __iomem of_iomap(struct device_node node, int index);
	107	#else
	108	static inline int of_address_to_resource(struct device_node *dev, int index,
	109	struct resource *r)
	110	{
	111	return -EINVAL;
	112	}
	113
	114	static inline void __iomem of_iomap(struct device_node device, int index)
	115	{
	116	return NULL;
	117	}
	118	#endif
a850a755 GL	119
a850a755 GL	120	#if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
0131d897	121	extern const __be32 of_get_pci_address(struct device_node dev, int bar_no,
22ae782f GL	122	u64 size, unsigned int flags);
	123	extern int of_pci_address_to_resource(struct device_node *dev, int bar,
	124	struct resource *r);
a850a755	125	#else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
22ae782f GL	126	static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
	127	struct resource *r)
	128	{
	129	return -ENOSYS;
	130	}
	131
0131d897	132	static inline const __be32 of_get_pci_address(struct device_node dev,
22ae782f GL	133	int bar_no, u64 size, unsigned int flags)
	134	{
	135	return NULL;
	136	}
a850a755	137	#endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
22ae782f	138
6b884a8d GL	139	#endif /* __OF_ADDRESS_H */
6b884a8d GL	140