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Direktori : /usr/src/kernels/3.10.0-1160.88.1.el7.centos.plus.x86_64/include/linux/
Current File : //usr/src/kernels/3.10.0-1160.88.1.el7.centos.plus.x86_64/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>

#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);

/* 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);

#else /* CONFIG_OF_ADDRESS */
#ifndef of_address_to_resource
static inline int of_address_to_resource(struct device_node *dev, int index,
					 struct resource *r)
{
	return -EINVAL;
}
#endif
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;
}
#ifndef of_iomap
static inline void __iomem *of_iomap(struct device_node *device, int index)
{
	return NULL;
}
#endif
static inline const __be32 *of_get_address(struct device_node *dev, int index,
					u64 *size, unsigned int *flags)
{
	return NULL;
}
#endif /* CONFIG_OF_ADDRESS */


#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 */
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