4 #include <linux/types.h>
5 #include <linux/errno.h>
7 #include <linux/irqdomain.h>
8 #include <linux/ioport.h>
11 typedef int (*of_irq_init_cb_t
)(struct device_node
*, struct device_node
*);
14 * Workarounds only applied to 32bit powermac machines
16 #define OF_IMAP_OLDWORLD_MAC 0x00000001
17 #define OF_IMAP_NO_PHANDLE 0x00000002
19 #if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC)
20 extern unsigned int of_irq_workarounds
;
21 extern struct device_node
*of_irq_dflt_pic
;
22 extern int of_irq_parse_oldworld(struct device_node
*device
, int index
,
23 struct of_phandle_args
*out_irq
);
24 #else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
25 #define of_irq_workarounds (0)
26 #define of_irq_dflt_pic (NULL)
27 static inline int of_irq_parse_oldworld(struct device_node
*device
, int index
,
28 struct of_phandle_args
*out_irq
)
32 #endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
34 extern int of_irq_parse_raw(const __be32
*addr
, struct of_phandle_args
*out_irq
);
35 extern int of_irq_parse_one(struct device_node
*device
, int index
,
36 struct of_phandle_args
*out_irq
);
37 extern unsigned int irq_create_of_mapping(struct of_phandle_args
*irq_data
);
38 extern int of_irq_to_resource(struct device_node
*dev
, int index
,
40 extern int of_irq_to_resource_table(struct device_node
*dev
,
41 struct resource
*res
, int nr_irqs
);
43 extern void of_irq_init(const struct of_device_id
*matches
);
46 extern int of_irq_count(struct device_node
*dev
);
47 extern int of_irq_get(struct device_node
*dev
, int index
);
49 static inline int of_irq_count(struct device_node
*dev
)
53 static inline int of_irq_get(struct device_node
*dev
, int index
)
59 #if defined(CONFIG_OF)
61 * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC
62 * implements it differently. However, the prototype is the same for all,
63 * so declare it here regardless of the CONFIG_OF_IRQ setting.
65 extern unsigned int irq_of_parse_and_map(struct device_node
*node
, int index
);
66 extern struct device_node
*of_irq_find_parent(struct device_node
*child
);
68 #else /* !CONFIG_OF */
69 static inline unsigned int irq_of_parse_and_map(struct device_node
*dev
,
75 static inline void *of_irq_find_parent(struct device_node
*child
)
79 #endif /* !CONFIG_OF */
81 #endif /* __OF_IRQ_H */
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