89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2012 Thomas Petazzoni
|
||
|
|
*
|
||
|
|
* Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
|
||
|
|
*
|
||
|
|
* 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
|