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It's useful to expose the logic of the power button assertion according to the CONFIG active level at the hardware input. Therefore, provide power_button_signal_asserted(). BUG=chrome-os-partner:31481 BRANCH=None TEST=Benson tested this on ryu since has the button cables. Change-Id: Ica48bfe981550700a067406cb72908e14dbccba9 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/213298 Reviewed-by: Alec Berg <alecaberg@chromium.org>
44 lines
1022 B
C
44 lines
1022 B
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Power button API for Chrome EC */
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#ifndef __CROS_EC_POWER_BUTTON_H
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#define __CROS_EC_POWER_BUTTON_H
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#include "common.h"
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/**
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* Return non-zero if power button is pressed.
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*
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* Uses the debounced button state, not the raw signal from the GPIO.
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*/
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int power_button_is_pressed(void);
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/**
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* Return non-zero if power button signal asserted at hardware input.
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*
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*/
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int power_button_signal_asserted(void);
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/**
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* Interrupt handler for power button.
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*
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* @param signal Signal which triggered the interrupt.
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*/
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void power_button_interrupt(enum gpio_signal signal);
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/**
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* For x86 systems, force-deassert the power button signal to the PCH.
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*/
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void power_button_pch_release(void);
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/**
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* For x86 systems, force a pulse of the power button signal to the PCH.
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*/
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void power_button_pch_pulse(void);
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#endif /* __CROS_EC_POWER_BUTTON_H */
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