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/* Copyright 2013 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Chip-specific part of the IRQ handling.
*/
#ifndef __CROS_EC_IRQ_CHIP_H
#define __CROS_EC_IRQ_CHIP_H
/**
* Enable an IRQ in the chip interrupt controller.
*
* @param irq interrupt request index.
*/
void chip_enable_irq(int irq);
/**
* Disable an IRQ in the chip interrupt controller.
*
* @param irq interrupt request index.
*/
void chip_disable_irq(int irq);
/**
* Clear a pending IRQ in the chip interrupt controller.
*
* @param irq interrupt request index.
*
* Note that most interrupts can be removed from the pending state simply by
* handling whatever caused the interrupt in the first place. This only needs
* to be called if an interrupt handler disables itself without clearing the
* reason for the interrupt, and then the interrupt is re-enabled from a
* different context.
*/
void chip_clear_pending_irq(int irq);
/**
* Software-trigger an IRQ in the chip interrupt controller.
*
* @param irq interrupt request index.
* @return CPU interrupt number to trigger if any, -1 else.
*/
int chip_trigger_irq(int irq);
/**
* Initialize chip interrupt controller.
*/
void chip_init_irqs(void);
/**
* Return external interrupt number.
*/
int chip_get_ec_int(void);
/**
* Return group number of the given external interrupt number.
*/
int chip_get_intc_group(int irq);
#endif /* __CROS_EC_IRQ_CHIP_H */
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