projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 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); | |
| 52f6537c AS |
40 | extern int of_irq_to_resource_table(struct device_node *dev, |
| 41 | struct resource *res, int nr_irqs); | |
| e3873444 | 42 | |
| c71a54b0 | 43 | extern void of_irq_init(const struct of_device_id *matches); |
| 08a543ad | 44 | |
| a8d3f362 RH |
45 | #ifdef CONFIG_OF_IRQ |
| 46 | extern int of_irq_count(struct device_node *dev); | |
| 9ec36caf | 47 | extern int of_irq_get(struct device_node *dev, int index); |
| ad69674e | 48 | extern int of_irq_get_byname(struct device_node *dev, const char *name); |
| a8d3f362 RH |
49 | #else |
| 50 | static inline int of_irq_count(struct device_node *dev) | |
| 51 | { | |
| 52 | return 0; | |
| 53 | } | |
| 9ec36caf RH |
54 | static inline int of_irq_get(struct device_node *dev, int index) |
| 55 | { | |
| 56 | return 0; | |
| 57 | } | |
| ad69674e GS |
58 | static inline int of_irq_get_byname(struct device_node *dev, const char *name) |
| 59 | { | |
| 60 | return 0; | |
| 61 | } | |
| a8d3f362 RH |
62 | #endif |
| 63 | ||
| b0b8c960 RH |
64 | #if defined(CONFIG_OF) |
| 65 | /* | |
| 66 | * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC | |
| 67 | * implements it differently. However, the prototype is the same for all, | |
| 68 | * so declare it here regardless of the CONFIG_OF_IRQ setting. | |
| 69 | */ | |
| 70 | extern unsigned int irq_of_parse_and_map(struct device_node *node, int index); | |
| 71 | extern struct device_node *of_irq_find_parent(struct device_node *child); | |
| 766644d2 TA |
72 | |
| 73 | #else /* !CONFIG_OF */ | |
| 74 | static inline unsigned int irq_of_parse_and_map(struct device_node *dev, | |
| 75 | int index) | |
| 76 | { | |
| 77 | return 0; | |
| 78 | } | |
| 62861095 LJ |
79 | |
| 80 | static inline void *of_irq_find_parent(struct device_node *child) | |
| 81 | { | |
| 82 | return NULL; | |
| 83 | } | |
| 766644d2 TA |
84 | #endif /* !CONFIG_OF */ |
| 85 | ||
| e3873444 | 86 | #endif /* __OF_IRQ_H */ |