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/* 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
#ifdef CONFIG_TASK_PROFILING
#define TASK_START_IRQ_HANDLER(excep_return) \
task_start_irq_handler(excep_return)
#else
#define TASK_START_IRQ_HANDLER(excep_return)
#endif
/* 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) DECLARE_IRQ_(irq, routine, priority)
#define DECLARE_IRQ_(irq, routine, priority) \
void IRQ_HANDLER(irq)(void); \
typedef struct { \
int fake[irq >= CONFIG_IRQ_COUNT ? -1 : 1]; \
} irq_num_check_##irq; \
static void __keep routine(void); \
void IRQ_HANDLER(irq)(void) \
{ \
void *ret = __builtin_return_address(0); \
TASK_START_IRQ_HANDLER(ret); \
routine(); \
task_resched_if_needed(ret); \
} \
const struct irq_priority __keep IRQ_PRIORITY(irq) __attribute__(( \
weak, section(".rodata.irqprio"))) = { irq, priority }
#endif /* __CROS_EC_IRQ_HANDLER_H */
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