1#ifndef __OF_IRQ_H
2#define __OF_IRQ_H
3
4#if defined(CONFIG_OF)
5struct of_irq;
6#include <linux/types.h>
7#include <linux/errno.h>
8#include <linux/irq.h>
9#include <linux/irqdomain.h>
10#include <linux/ioport.h>
11#include <linux/of.h>
12
13
14
15
16
17
18extern unsigned int irq_of_parse_and_map(struct device_node *node, int index);
19
20#if defined(CONFIG_OF_IRQ)
21
22
23
24
25
26
27
28
29
30#define OF_MAX_IRQ_SPEC 4
31struct of_irq {
32 struct device_node *controller;
33 u32 size;
34 u32 specifier[OF_MAX_IRQ_SPEC];
35};
36
37typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *);
38
39
40
41
42#define OF_IMAP_OLDWORLD_MAC 0x00000001
43#define OF_IMAP_NO_PHANDLE 0x00000002
44
45#if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC)
46extern unsigned int of_irq_workarounds;
47extern struct device_node *of_irq_dflt_pic;
48extern int of_irq_map_oldworld(struct device_node *device, int index,
49 struct of_irq *out_irq);
50#else
51#define of_irq_workarounds (0)
52#define of_irq_dflt_pic (NULL)
53static inline int of_irq_map_oldworld(struct device_node *device, int index,
54 struct of_irq *out_irq)
55{
56 return -EINVAL;
57}
58#endif
59
60
61extern int of_irq_map_raw(struct device_node *parent, const __be32 *intspec,
62 u32 ointsize, const __be32 *addr,
63 struct of_irq *out_irq);
64extern int of_irq_map_one(struct device_node *device, int index,
65 struct of_irq *out_irq);
66extern unsigned int irq_create_of_mapping(struct device_node *controller,
67 const u32 *intspec,
68 unsigned int intsize);
69extern int of_irq_to_resource(struct device_node *dev, int index,
70 struct resource *r);
71extern int of_irq_count(struct device_node *dev);
72extern int of_irq_to_resource_table(struct device_node *dev,
73 struct resource *res, int nr_irqs);
74extern struct device_node *of_irq_find_parent(struct device_node *child);
75
76extern void of_irq_init(const struct of_device_id *matches);
77
78#endif
79
80#else
81static inline unsigned int irq_of_parse_and_map(struct device_node *dev,
82 int index)
83{
84 return 0;
85}
86
87static inline void *of_irq_find_parent(struct device_node *child)
88{
89 return NULL;
90}
91#endif
92
93#endif
94