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- /*
- * Copyright (C) 2012 Thomas Petazzoni
- *
- * Thomas Petazzoni <[email protected]>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
- #ifndef _LINUX_IRQCHIP_H
- #define _LINUX_IRQCHIP_H
- #include <linux/acpi.h>
- #include <linux/module.h>
- #include <linux/of.h>
- #include <linux/of_irq.h>
- #include <linux/platform_device.h>
- /* Undefined on purpose */
- extern of_irq_init_cb_t typecheck_irq_init_cb;
- #define typecheck_irq_init_cb(fn) \
- (__typecheck(typecheck_irq_init_cb, &fn) ? fn : fn)
- /*
- * This macro must be used by the different irqchip drivers to declare
- * the association between their DT compatible string and their
- * initialization function.
- *
- * @name: name that must be unique across all IRQCHIP_DECLARE of the
- * same file.
- * @compat: compatible string of the irqchip driver
- * @fn: initialization function
- */
- #define IRQCHIP_DECLARE(name, compat, fn) \
- OF_DECLARE_2(irqchip, name, compat, typecheck_irq_init_cb(fn))
- extern int platform_irqchip_probe(struct platform_device *pdev);
- #define IRQCHIP_PLATFORM_DRIVER_BEGIN(drv_name) \
- static const struct of_device_id drv_name##_irqchip_match_table[] = {
- #define IRQCHIP_MATCH(compat, fn) { .compatible = compat, \
- .data = typecheck_irq_init_cb(fn), },
- #define IRQCHIP_PLATFORM_DRIVER_END(drv_name, ...) \
- {}, \
- }; \
- MODULE_DEVICE_TABLE(of, drv_name##_irqchip_match_table); \
- static struct platform_driver drv_name##_driver = { \
- .probe = IS_ENABLED(CONFIG_IRQCHIP) ? \
- platform_irqchip_probe : NULL, \
- .driver = { \
- .name = #drv_name, \
- .owner = THIS_MODULE, \
- .of_match_table = drv_name##_irqchip_match_table, \
- .suppress_bind_attrs = true, \
- __VA_ARGS__ \
- }, \
- }; \
- builtin_platform_driver(drv_name##_driver)
- /*
- * This macro must be used by the different irqchip drivers to declare
- * the association between their version and their initialization function.
- *
- * @name: name that must be unique across all IRQCHIP_ACPI_DECLARE of the
- * same file.
- * @subtable: Subtable to be identified in MADT
- * @validate: Function to be called on that subtable to check its validity.
- * Can be NULL.
- * @data: data to be checked by the validate function.
- * @fn: initialization function
- */
- #define IRQCHIP_ACPI_DECLARE(name, subtable, validate, data, fn) \
- ACPI_DECLARE_SUBTABLE_PROBE_ENTRY(irqchip, name, \
- ACPI_SIG_MADT, subtable, \
- validate, data, fn)
- #ifdef CONFIG_IRQCHIP
- void irqchip_init(void);
- #else
- static inline void irqchip_init(void) {}
- #endif
- #endif
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