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124 lines
3.8 KiB
124 lines
3.8 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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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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#include <linux/errno.h> |
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#include <linux/irq.h> |
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#include <linux/irqdomain.h> |
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#include <linux/ioport.h> |
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#include <linux/of.h> |
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typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *); |
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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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int of_irq_parse_oldworld(const struct device_node *device, int index, |
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struct of_phandle_args *out_irq); |
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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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static inline int of_irq_parse_oldworld(const struct device_node *device, int index, |
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struct of_phandle_args *out_irq) |
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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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extern int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq); |
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extern unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data); |
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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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extern void of_irq_init(const struct of_device_id *matches); |
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#ifdef CONFIG_OF_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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extern int of_irq_count(struct device_node *dev); |
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extern int of_irq_get(struct device_node *dev, int index); |
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extern int of_irq_get_byname(struct device_node *dev, const char *name); |
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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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extern struct device_node *of_irq_find_parent(struct device_node *child); |
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extern struct irq_domain *of_msi_get_domain(struct device *dev, |
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struct device_node *np, |
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enum irq_domain_bus_token token); |
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extern struct irq_domain *of_msi_map_get_device_domain(struct device *dev, |
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u32 id, |
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u32 bus_token); |
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extern void of_msi_configure(struct device *dev, struct device_node *np); |
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u32 of_msi_map_id(struct device *dev, struct device_node *msi_np, u32 id_in); |
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#else |
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static inline 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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{ |
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return -EINVAL; |
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} |
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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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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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static inline int of_irq_get_byname(struct device_node *dev, const char *name) |
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{ |
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return 0; |
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} |
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static inline int of_irq_to_resource_table(struct device_node *dev, |
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struct resource *res, int nr_irqs) |
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{ |
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return 0; |
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} |
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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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static inline struct irq_domain *of_msi_get_domain(struct device *dev, |
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struct device_node *np, |
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enum irq_domain_bus_token token) |
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{ |
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return NULL; |
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} |
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static inline struct irq_domain *of_msi_map_get_device_domain(struct device *dev, |
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u32 id, u32 bus_token) |
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{ |
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return NULL; |
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} |
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static inline void of_msi_configure(struct device *dev, struct device_node *np) |
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{ |
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} |
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static inline u32 of_msi_map_id(struct device *dev, |
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struct device_node *msi_np, u32 id_in) |
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{ |
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return id_in; |
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} |
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#endif |
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#if defined(CONFIG_OF_IRQ) || defined(CONFIG_SPARC) |
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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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#else /* !CONFIG_OF && !CONFIG_SPARC */ |
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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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#endif /* !CONFIG_OF */ |
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#endif /* __OF_IRQ_H */
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