Release 4.7 include/linux/of_irq.h
#ifndef __OF_IRQ_H
#define __OF_IRQ_H
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/ioport.h>
#include <linux/of.h>
typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *);
/*
* Workarounds only applied to 32bit powermac machines
*/
#define OF_IMAP_OLDWORLD_MAC 0x00000001
#define OF_IMAP_NO_PHANDLE 0x00000002
#if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC)
extern unsigned int of_irq_workarounds;
extern struct device_node *of_irq_dflt_pic;
extern int of_irq_parse_oldworld(struct device_node *device, int index,
struct of_phandle_args *out_irq);
#else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
#define of_irq_workarounds (0)
#define of_irq_dflt_pic (NULL)
static inline int of_irq_parse_oldworld(struct device_node *device, int index,
struct of_phandle_args *out_irq)
{
return -EINVAL;
}
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#endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
extern int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq);
extern int of_irq_parse_one(struct device_node *device, int index,
struct of_phandle_args *out_irq);
extern unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data);
extern int of_irq_to_resource(struct device_node *dev, int index,
struct resource *r);
extern void of_irq_init(const struct of_device_id *matches);
#ifdef CONFIG_OF_IRQ
extern int of_irq_count(struct device_node *dev);
extern int of_irq_get(struct device_node *dev, int index);
extern int of_irq_get_byname(struct device_node *dev, const char *name);
extern int of_irq_to_resource_table(struct device_node *dev,
struct resource *res, int nr_irqs);
extern struct device_node *of_irq_find_parent(struct device_node *child);
extern struct irq_domain *of_msi_get_domain(struct device *dev,
struct device_node *np,
enum irq_domain_bus_token token);
extern struct irq_domain *of_msi_map_get_device_domain(struct device *dev,
u32 rid);
extern void of_msi_configure(struct device *dev, struct device_node *np);
u32 of_msi_map_rid(struct device *dev, struct device_node *msi_np, u32 rid_in);
#else
static inline int of_irq_count(struct device_node *dev)
{
return 0;
}
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static inline int of_irq_get(struct device_node *dev, int index)
{
return 0;
}
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static inline int of_irq_get_byname(struct device_node *dev, const char *name)
{
return 0;
}
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static inline int of_irq_to_resource_table(struct device_node *dev,
struct resource *res, int nr_irqs)
{
return 0;
}
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static inline void *of_irq_find_parent(struct device_node *child)
{
return NULL;
}
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static inline struct irq_domain *of_msi_get_domain(struct device *dev,
struct device_node *np,
enum irq_domain_bus_token token)
{
return NULL;
}
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static inline struct irq_domain *of_msi_map_get_device_domain(struct device *dev,
u32 rid)
{
return NULL;
}
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static inline void of_msi_configure(struct device *dev, struct device_node *np)
{
}
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static inline u32 of_msi_map_rid(struct device *dev,
struct device_node *msi_np, u32 rid_in)
{
return rid_in;
}
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#endif
#if defined(CONFIG_OF_IRQ) || defined(CONFIG_SPARC)
/*
* irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC
* implements it differently. However, the prototype is the same for all,
* so declare it here regardless of the CONFIG_OF_IRQ setting.
*/
extern unsigned int irq_of_parse_and_map(struct device_node *node, int index);
#else /* !CONFIG_OF && !CONFIG_SPARC */
static inline unsigned int irq_of_parse_and_map(struct device_node *dev,
int index)
{
return 0;
}
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#endif /* !CONFIG_OF */
#endif /* __OF_IRQ_H */
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