/* Copyright 2014 The ChromiumOS Authors
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

/* Helper to declare IRQ handling routines */

#ifndef __CROS_EC_IRQ_HANDLER_H
#define __CROS_EC_IRQ_HANDLER_H

/* Helper macros to build the IRQ handler and priority struct names */
#define IRQ_HANDLER(irqname) CONCAT3(irq_, irqname, _handler)
#define IRQ_PRIORITY(irqname) CONCAT2(prio_, irqname)
/*
 * Macro to connect the interrupt handler "routine" to the irq number "irq" and
 * ensure it is enabled in the interrupt controller with the right priority.
 */
#define DECLARE_IRQ(irq, routine, priority)                                   \
	static void __keep routine(void);                                     \
	void IRQ_HANDLER(CPU_INT(irq))(void)                                  \
		__attribute__((alias(STRINGIFY(routine))));                   \
	const struct irq_priority __keep IRQ_PRIORITY(CPU_INT(irq))           \
		__attribute__((section(".rodata.irqprio"))) = { CPU_INT(irq), \
								priority }

#endif /* __CROS_EC_IRQ_HANDLER_H */