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84ba188120
The old backlight_x86 code did (backlight enable) = (lid is open) && (GPIO request from AP) Newer systems will AND those signals in hardware. Support those systems by separating CONFIG_BACKLIGHT_LID and CONFIG_BACKLIGHT_REQ_GPIO, and add tests for the case where the enable signal is dependent only on the lid position. BUG=chrome-os-partner:22960 BRANCH=none TEST=pass unit tests Change-Id: I1909426e49f00a8acd5047fd88c801cba1dacd76 Reviewed-on: https://chromium-review.googlesource.com/170925 Tested-by: Randall Spangler <rspangler@chromium.org> Reviewed-by: Bill Richardson <wfrichar@chromium.org> Commit-Queue: Randall Spangler <rspangler@chromium.org>
25 lines
563 B
C
25 lines
563 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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/* Backlight API for Chrome EC */
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#ifndef __CROS_EC_BACKLIGHT_H
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#define __CROS_EC_BACKLIGHT_H
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#include "common.h"
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/**
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* Interrupt handler for backlight.
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*
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* @param signal Signal which triggered the interrupt.
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*/
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#ifdef CONFIG_BACKLIGHT_REQ_GPIO
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void backlight_interrupt(enum gpio_signal signal);
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#else
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#define backlight_interrupt NULL
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#endif
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#endif /* __CROS_EC_BACKLIGHT_H */
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