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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
e3873444 GL |
2 | #ifndef __OF_IRQ_H |
3 | #define __OF_IRQ_H | |
4 | ||
e3873444 | 5 | #include <linux/types.h> |
7dc2e113 | 6 | #include <linux/errno.h> |
530719b2 | 7 | #include <linux/irq.h> |
d593f25f | 8 | #include <linux/irqdomain.h> |
7dc2e113 | 9 | #include <linux/ioport.h> |
e3873444 GL |
10 | #include <linux/of.h> |
11 | ||
df3ed932 | 12 | typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *); |
c71a54b0 | 13 | |
7dc2e113 GL |
14 | /* |
15 | * Workarounds only applied to 32bit powermac machines | |
16 | */ | |
17 | #define OF_IMAP_OLDWORLD_MAC 0x00000001 | |
18 | #define OF_IMAP_NO_PHANDLE 0x00000002 | |
19 | ||
20 | #if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC) | |
21 | extern unsigned int of_irq_workarounds; | |
22 | extern struct device_node *of_irq_dflt_pic; | |
0c02c800 | 23 | extern int of_irq_parse_oldworld(struct device_node *device, int index, |
530210c7 | 24 | struct of_phandle_args *out_irq); |
7dc2e113 GL |
25 | #else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */ |
26 | #define of_irq_workarounds (0) | |
27 | #define of_irq_dflt_pic (NULL) | |
0c02c800 | 28 | static inline int of_irq_parse_oldworld(struct device_node *device, int index, |
530210c7 | 29 | struct of_phandle_args *out_irq) |
7dc2e113 GL |
30 | { |
31 | return -EINVAL; | |
32 | } | |
33 | #endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */ | |
34 | ||
23616132 | 35 | extern int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq); |
e6d30ab1 | 36 | extern unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data); |
7dc2e113 GL |
37 | extern int of_irq_to_resource(struct device_node *dev, int index, |
38 | struct resource *r); | |
e3873444 | 39 | |
c71a54b0 | 40 | extern void of_irq_init(const struct of_device_id *matches); |
08a543ad | 41 | |
a8d3f362 | 42 | #ifdef CONFIG_OF_IRQ |
1852ebd1 SR |
43 | extern int of_irq_parse_one(struct device_node *device, int index, |
44 | struct of_phandle_args *out_irq); | |
a8d3f362 | 45 | extern int of_irq_count(struct device_node *dev); |
9ec36caf | 46 | extern int of_irq_get(struct device_node *dev, int index); |
ad69674e | 47 | extern int of_irq_get_byname(struct device_node *dev, const char *name); |
d616a703 GU |
48 | extern int of_irq_to_resource_table(struct device_node *dev, |
49 | struct resource *res, int nr_irqs); | |
4c3141e0 | 50 | extern struct device_node *of_irq_find_parent(struct device_node *child); |
48ae34fb MZ |
51 | extern struct irq_domain *of_msi_get_domain(struct device *dev, |
52 | struct device_node *np, | |
53 | enum irq_domain_bus_token token); | |
82b9b424 | 54 | extern struct irq_domain *of_msi_map_get_device_domain(struct device *dev, |
6f881aba DC |
55 | u32 id, |
56 | u32 bus_token); | |
f9f9f11d | 57 | extern void of_msi_configure(struct device *dev, struct device_node *np); |
2bcdd8f2 | 58 | u32 of_msi_map_id(struct device *dev, struct device_node *msi_np, u32 id_in); |
a8d3f362 | 59 | #else |
1852ebd1 SR |
60 | static inline int of_irq_parse_one(struct device_node *device, int index, |
61 | struct of_phandle_args *out_irq) | |
62 | { | |
8c0381f5 | 63 | return -EINVAL; |
1852ebd1 | 64 | } |
a8d3f362 RH |
65 | static inline int of_irq_count(struct device_node *dev) |
66 | { | |
67 | return 0; | |
68 | } | |
9ec36caf RH |
69 | static inline int of_irq_get(struct device_node *dev, int index) |
70 | { | |
71 | return 0; | |
72 | } | |
ad69674e GS |
73 | static inline int of_irq_get_byname(struct device_node *dev, const char *name) |
74 | { | |
75 | return 0; | |
76 | } | |
d616a703 GU |
77 | static inline int of_irq_to_resource_table(struct device_node *dev, |
78 | struct resource *res, int nr_irqs) | |
79 | { | |
80 | return 0; | |
81 | } | |
4c3141e0 CC |
82 | static inline void *of_irq_find_parent(struct device_node *child) |
83 | { | |
84 | return NULL; | |
85 | } | |
86 | ||
48ae34fb MZ |
87 | static inline struct irq_domain *of_msi_get_domain(struct device *dev, |
88 | struct device_node *np, | |
89 | enum irq_domain_bus_token token) | |
90 | { | |
91 | return NULL; | |
92 | } | |
82b9b424 | 93 | static inline struct irq_domain *of_msi_map_get_device_domain(struct device *dev, |
6f881aba | 94 | u32 id, u32 bus_token) |
82b9b424 MZ |
95 | { |
96 | return NULL; | |
97 | } | |
f9f9f11d JG |
98 | static inline void of_msi_configure(struct device *dev, struct device_node *np) |
99 | { | |
100 | } | |
2bcdd8f2 LP |
101 | static inline u32 of_msi_map_id(struct device *dev, |
102 | struct device_node *msi_np, u32 id_in) | |
eaddb572 | 103 | { |
2bcdd8f2 | 104 | return id_in; |
eaddb572 | 105 | } |
a8d3f362 RH |
106 | #endif |
107 | ||
62ebf931 | 108 | #if defined(CONFIG_OF_IRQ) || defined(CONFIG_SPARC) |
b0b8c960 RH |
109 | /* |
110 | * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC | |
111 | * implements it differently. However, the prototype is the same for all, | |
112 | * so declare it here regardless of the CONFIG_OF_IRQ setting. | |
113 | */ | |
114 | extern unsigned int irq_of_parse_and_map(struct device_node *node, int index); | |
766644d2 | 115 | |
62ebf931 | 116 | #else /* !CONFIG_OF && !CONFIG_SPARC */ |
766644d2 TA |
117 | static inline unsigned int irq_of_parse_and_map(struct device_node *dev, |
118 | int index) | |
119 | { | |
120 | return 0; | |
121 | } | |
122 | #endif /* !CONFIG_OF */ | |
123 | ||
e3873444 | 124 | #endif /* __OF_IRQ_H */ |