2010-06-18 11:09:59 -06:00
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#ifndef __OF_IRQ_H
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#define __OF_IRQ_H
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#include <linux/types.h>
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2010-06-08 07:48:06 -06:00
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#include <linux/errno.h>
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2010-10-21 11:34:55 -06:00
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#include <linux/irq.h>
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2012-02-24 08:24:17 -07:00
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#include <linux/irqdomain.h>
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2010-06-08 07:48:06 -06:00
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#include <linux/ioport.h>
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2010-06-18 11:09:59 -06:00
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#include <linux/of.h>
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2011-09-20 14:13:50 -06:00
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typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *);
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2010-06-08 07:48:06 -06:00
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/*
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* Workarounds only applied to 32bit powermac machines
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*/
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#define OF_IMAP_OLDWORLD_MAC 0x00000001
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#define OF_IMAP_NO_PHANDLE 0x00000002
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#if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC)
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extern unsigned int of_irq_workarounds;
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extern struct device_node *of_irq_dflt_pic;
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2013-09-19 10:22:36 -06:00
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extern int of_irq_parse_oldworld(struct device_node *device, int index,
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2013-09-15 09:39:11 -06:00
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struct of_phandle_args *out_irq);
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2010-06-08 07:48:06 -06:00
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#else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
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#define of_irq_workarounds (0)
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#define of_irq_dflt_pic (NULL)
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2013-09-19 10:22:36 -06:00
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static inline int of_irq_parse_oldworld(struct device_node *device, int index,
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struct of_phandle_args *out_irq)
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2010-06-08 07:48:06 -06:00
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{
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return -EINVAL;
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}
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#endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
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2013-09-15 15:32:39 -06:00
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extern int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq);
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extern int of_irq_parse_one(struct device_node *device, int index,
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struct of_phandle_args *out_irq);
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2013-09-15 09:55:53 -06:00
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extern unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data);
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2010-06-08 07:48:06 -06:00
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extern int of_irq_to_resource(struct device_node *dev, int index,
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struct resource *r);
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2010-10-10 21:35:05 -06:00
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extern int of_irq_to_resource_table(struct device_node *dev,
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struct resource *res, int nr_irqs);
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2010-06-18 11:09:59 -06:00
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2011-09-20 14:13:50 -06:00
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extern void of_irq_init(const struct of_device_id *matches);
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2011-07-26 03:19:06 -06:00
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2013-11-07 11:13:27 -07:00
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#ifdef CONFIG_OF_IRQ
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extern int of_irq_count(struct device_node *dev);
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2014-04-23 16:57:41 -06:00
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extern int of_irq_get(struct device_node *dev, int index);
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2013-11-07 11:13:27 -07:00
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#else
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static inline int of_irq_count(struct device_node *dev)
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{
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return 0;
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}
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2014-04-23 16:57:41 -06:00
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static inline int of_irq_get(struct device_node *dev, int index)
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{
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return 0;
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}
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2013-11-07 11:13:27 -07:00
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#endif
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2013-09-04 09:52:57 -06:00
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#if defined(CONFIG_OF)
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/*
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* irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC
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* implements it differently. However, the prototype is the same for all,
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* so declare it here regardless of the CONFIG_OF_IRQ setting.
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*/
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extern unsigned int irq_of_parse_and_map(struct device_node *node, int index);
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extern struct device_node *of_irq_find_parent(struct device_node *child);
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2012-03-25 09:02:49 -06:00
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#else /* !CONFIG_OF */
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static inline unsigned int irq_of_parse_and_map(struct device_node *dev,
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int index)
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{
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return 0;
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}
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2012-08-08 06:44:59 -06:00
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static inline void *of_irq_find_parent(struct device_node *child)
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{
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return NULL;
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}
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2012-03-25 09:02:49 -06:00
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#endif /* !CONFIG_OF */
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2010-06-18 11:09:59 -06:00
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#endif /* __OF_IRQ_H */
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