| Grant Likely | e387344 | 2010-06-18 11:09:59 -0600 | [diff] [blame] | 1 | #ifndef __OF_IRQ_H |
| 2 | #define __OF_IRQ_H |
| 3 | |
| Grant Likely | e387344 | 2010-06-18 11:09:59 -0600 | [diff] [blame] | 4 | #include <linux/types.h> |
| Grant Likely | 7dc2e11 | 2010-06-08 07:48:06 -0600 | [diff] [blame] | 5 | #include <linux/errno.h> |
| Grant Likely | 530719b | 2010-10-21 11:34:55 -0600 | [diff] [blame] | 6 | #include <linux/irq.h> |
| Grant Likely | d593f25 | 2012-02-24 08:24:17 -0700 | [diff] [blame] | 7 | #include <linux/irqdomain.h> |
| Grant Likely | 7dc2e11 | 2010-06-08 07:48:06 -0600 | [diff] [blame] | 8 | #include <linux/ioport.h> |
| Grant Likely | e387344 | 2010-06-18 11:09:59 -0600 | [diff] [blame] | 9 | #include <linux/of.h> |
| 10 | |
| Rob Herring | c71a54b | 2011-09-20 15:13:50 -0500 | [diff] [blame] | 11 | typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *); |
| 12 | |
| Grant Likely | 7dc2e11 | 2010-06-08 07:48:06 -0600 | [diff] [blame] | 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; |
| Grant Likely | 0c02c80 | 2013-09-19 11:22:36 -0500 | [diff] [blame] | 22 | extern int of_irq_parse_oldworld(struct device_node *device, int index, |
| Grant Likely | 530210c | 2013-09-15 16:39:11 +0100 | [diff] [blame] | 23 | struct of_phandle_args *out_irq); |
| Grant Likely | 7dc2e11 | 2010-06-08 07:48:06 -0600 | [diff] [blame] | 24 | #else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */ |
| 25 | #define of_irq_workarounds (0) |
| 26 | #define of_irq_dflt_pic (NULL) |
| Grant Likely | 0c02c80 | 2013-09-19 11:22:36 -0500 | [diff] [blame] | 27 | static inline int of_irq_parse_oldworld(struct device_node *device, int index, |
| Grant Likely | 530210c | 2013-09-15 16:39:11 +0100 | [diff] [blame] | 28 | struct of_phandle_args *out_irq) |
| Grant Likely | 7dc2e11 | 2010-06-08 07:48:06 -0600 | [diff] [blame] | 29 | { |
| 30 | return -EINVAL; |
| 31 | } |
| 32 | #endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */ |
| 33 | |
| Grant Likely | 2361613 | 2013-09-15 22:32:39 +0100 | [diff] [blame^] | 34 | extern int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq); |
| Grant Likely | 0c02c80 | 2013-09-19 11:22:36 -0500 | [diff] [blame] | 35 | extern int of_irq_parse_one(struct device_node *device, int index, |
| Grant Likely | 530210c | 2013-09-15 16:39:11 +0100 | [diff] [blame] | 36 | struct of_phandle_args *out_irq); |
| Grant Likely | e6d30ab | 2013-09-15 16:55:53 +0100 | [diff] [blame] | 37 | extern unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data); |
| Grant Likely | 7dc2e11 | 2010-06-08 07:48:06 -0600 | [diff] [blame] | 38 | extern int of_irq_to_resource(struct device_node *dev, int index, |
| 39 | struct resource *r); |
| Andres Salomon | 52f6537 | 2010-10-10 21:35:05 -0600 | [diff] [blame] | 40 | extern int of_irq_count(struct device_node *dev); |
| 41 | extern int of_irq_to_resource_table(struct device_node *dev, |
| 42 | struct resource *res, int nr_irqs); |
| Grant Likely | e387344 | 2010-06-18 11:09:59 -0600 | [diff] [blame] | 43 | |
| Rob Herring | c71a54b | 2011-09-20 15:13:50 -0500 | [diff] [blame] | 44 | extern void of_irq_init(const struct of_device_id *matches); |
| Grant Likely | 08a543a | 2011-07-26 03:19:06 -0600 | [diff] [blame] | 45 | |
| Rob Herring | b0b8c96 | 2013-09-04 10:52:57 -0500 | [diff] [blame] | 46 | #if defined(CONFIG_OF) |
| 47 | /* |
| 48 | * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC |
| 49 | * implements it differently. However, the prototype is the same for all, |
| 50 | * so declare it here regardless of the CONFIG_OF_IRQ setting. |
| 51 | */ |
| 52 | extern unsigned int irq_of_parse_and_map(struct device_node *node, int index); |
| 53 | extern struct device_node *of_irq_find_parent(struct device_node *child); |
| Thomas Abraham | 766644d | 2012-03-25 20:32:49 +0530 | [diff] [blame] | 54 | |
| 55 | #else /* !CONFIG_OF */ |
| 56 | static inline unsigned int irq_of_parse_and_map(struct device_node *dev, |
| 57 | int index) |
| 58 | { |
| 59 | return 0; |
| 60 | } |
| Lee Jones | 6286109 | 2012-08-08 13:44:59 +0100 | [diff] [blame] | 61 | |
| 62 | static inline void *of_irq_find_parent(struct device_node *child) |
| 63 | { |
| 64 | return NULL; |
| 65 | } |
| Thomas Abraham | 766644d | 2012-03-25 20:32:49 +0530 | [diff] [blame] | 66 | #endif /* !CONFIG_OF */ |
| 67 | |
| Grant Likely | e387344 | 2010-06-18 11:09:59 -0600 | [diff] [blame] | 68 | #endif /* __OF_IRQ_H */ |