Commit | Line | Data |
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e3873444 GL |
1 | #ifndef __OF_IRQ_H |
2 | #define __OF_IRQ_H | |
3 | ||
e3873444 | 4 | #include <linux/types.h> |
7dc2e113 | 5 | #include <linux/errno.h> |
530719b2 | 6 | #include <linux/irq.h> |
d593f25f | 7 | #include <linux/irqdomain.h> |
7dc2e113 | 8 | #include <linux/ioport.h> |
e3873444 GL |
9 | #include <linux/of.h> |
10 | ||
c71a54b0 RH |
11 | typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *); |
12 | ||
7dc2e113 GL |
13 | /* |
14 | * Workarounds only applied to 32bit powermac machines | |
15 | */ | |
16 | #define OF_IMAP_OLDWORLD_MAC 0x00000001 | |
17 | #define OF_IMAP_NO_PHANDLE 0x00000002 | |
18 | ||
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; | |
0c02c800 | 22 | extern int of_irq_parse_oldworld(struct device_node *device, int index, |
530210c7 | 23 | struct of_phandle_args *out_irq); |
7dc2e113 GL |
24 | #else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */ |
25 | #define of_irq_workarounds (0) | |
26 | #define of_irq_dflt_pic (NULL) | |
0c02c800 | 27 | static inline int of_irq_parse_oldworld(struct device_node *device, int index, |
530210c7 | 28 | struct of_phandle_args *out_irq) |
7dc2e113 GL |
29 | { |
30 | return -EINVAL; | |
31 | } | |
32 | #endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */ | |
33 | ||
23616132 | 34 | extern int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq); |
0c02c800 | 35 | extern int of_irq_parse_one(struct device_node *device, int index, |
530210c7 | 36 | struct of_phandle_args *out_irq); |
e6d30ab1 | 37 | extern unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data); |
7dc2e113 GL |
38 | extern int of_irq_to_resource(struct device_node *dev, int index, |
39 | struct resource *r); | |
e3873444 | 40 | |
c71a54b0 | 41 | extern void of_irq_init(const struct of_device_id *matches); |
08a543ad | 42 | |
a8d3f362 RH |
43 | #ifdef CONFIG_OF_IRQ |
44 | extern int of_irq_count(struct device_node *dev); | |
9ec36caf | 45 | extern int of_irq_get(struct device_node *dev, int index); |
ad69674e | 46 | extern int of_irq_get_byname(struct device_node *dev, const char *name); |
d616a703 GU |
47 | extern int of_irq_to_resource_table(struct device_node *dev, |
48 | struct resource *res, int nr_irqs); | |
4c3141e0 | 49 | extern struct device_node *of_irq_find_parent(struct device_node *child); |
48ae34fb MZ |
50 | extern struct irq_domain *of_msi_get_domain(struct device *dev, |
51 | struct device_node *np, | |
52 | enum irq_domain_bus_token token); | |
82b9b424 MZ |
53 | extern struct irq_domain *of_msi_map_get_device_domain(struct device *dev, |
54 | u32 rid); | |
f9f9f11d | 55 | extern void of_msi_configure(struct device *dev, struct device_node *np); |
eaddb572 | 56 | u32 of_msi_map_rid(struct device *dev, struct device_node *msi_np, u32 rid_in); |
a8d3f362 RH |
57 | #else |
58 | static inline int of_irq_count(struct device_node *dev) | |
59 | { | |
60 | return 0; | |
61 | } | |
9ec36caf RH |
62 | static inline int of_irq_get(struct device_node *dev, int index) |
63 | { | |
64 | return 0; | |
65 | } | |
ad69674e GS |
66 | static inline int of_irq_get_byname(struct device_node *dev, const char *name) |
67 | { | |
68 | return 0; | |
69 | } | |
d616a703 GU |
70 | static inline int of_irq_to_resource_table(struct device_node *dev, |
71 | struct resource *res, int nr_irqs) | |
72 | { | |
73 | return 0; | |
74 | } | |
4c3141e0 CC |
75 | static inline void *of_irq_find_parent(struct device_node *child) |
76 | { | |
77 | return NULL; | |
78 | } | |
79 | ||
48ae34fb MZ |
80 | static inline struct irq_domain *of_msi_get_domain(struct device *dev, |
81 | struct device_node *np, | |
82 | enum irq_domain_bus_token token) | |
83 | { | |
84 | return NULL; | |
85 | } | |
82b9b424 MZ |
86 | static inline struct irq_domain *of_msi_map_get_device_domain(struct device *dev, |
87 | u32 rid) | |
88 | { | |
89 | return NULL; | |
90 | } | |
f9f9f11d JG |
91 | static inline void of_msi_configure(struct device *dev, struct device_node *np) |
92 | { | |
93 | } | |
eaddb572 RH |
94 | static inline u32 of_msi_map_rid(struct device *dev, |
95 | struct device_node *msi_np, u32 rid_in) | |
96 | { | |
97 | return rid_in; | |
98 | } | |
a8d3f362 RH |
99 | #endif |
100 | ||
62ebf931 | 101 | #if defined(CONFIG_OF_IRQ) || defined(CONFIG_SPARC) |
b0b8c960 RH |
102 | /* |
103 | * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC | |
104 | * implements it differently. However, the prototype is the same for all, | |
105 | * so declare it here regardless of the CONFIG_OF_IRQ setting. | |
106 | */ | |
107 | extern unsigned int irq_of_parse_and_map(struct device_node *node, int index); | |
766644d2 | 108 | |
62ebf931 | 109 | #else /* !CONFIG_OF && !CONFIG_SPARC */ |
766644d2 TA |
110 | static inline unsigned int irq_of_parse_and_map(struct device_node *dev, |
111 | int index) | |
112 | { | |
113 | return 0; | |
114 | } | |
115 | #endif /* !CONFIG_OF */ | |
116 | ||
e3873444 | 117 | #endif /* __OF_IRQ_H */ |