123 lines
3.8 KiB
Java
123 lines
3.8 KiB
Java
/*
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* Copyright (C) 2014 The CyanogenMod Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.cyanogenmod.hardware;
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import org.cyanogenmod.internal.util.FileUtils;
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import android.util.Log;
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/**
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* Facemelt mode!
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*/
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public class SunlightEnhancement {
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private static final String TAG = "SunlightEnhancement";
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private static final String FACEMELT_PATH = getFacemeltPath();
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private static final String FACEMELT_MODE = getFacemeltMode();
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private static final String FILE_HBM = "/sys/class/graphics/fb0/hbm";
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private static final String FILE_SRE = "/sys/class/graphics/fb0/sre";
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private static final boolean sHasNativeSupport =
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LiveDisplayVendorImpl.hasNativeFeature(LiveDisplayVendorImpl.OUTDOOR_MODE);
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private static String getFacemeltPath() {
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if (FileUtils.fileExists(FILE_HBM)) {
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return FILE_HBM;
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} else {
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return FILE_SRE;
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}
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}
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private static String getFacemeltMode() {
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if (FileUtils.fileExists(FILE_HBM)) {
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return "1";
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} else {
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return "2";
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}
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}
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/**
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* Whether device supports sunlight enhancement
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*
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* @return boolean Supported devices must return always true
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*/
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public static boolean isSupported() {
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if (sHasNativeSupport) {
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return true;
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}
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return FileUtils.isFileWritable(FACEMELT_PATH);
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}
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/**
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* This method return the current activation status of sunlight enhancement
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*
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* @return boolean Must be false when sunlight enhancement is not supported or not activated,
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* or the operation failed while reading the status; true in any other case.
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*/
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public static boolean isEnabled() {
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try {
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if (sHasNativeSupport) {
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return LiveDisplayVendorImpl.native_isOutdoorModeEnabled();
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}
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return Integer.parseInt(FileUtils.readOneLine(FACEMELT_PATH)) > 0;
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} catch (Exception e) {
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Log.e(TAG, e.getMessage(), e);
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}
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return false;
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}
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/**
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* This method allows to setup sunlight enhancement
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*
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* @param status The new sunlight enhancement status
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* @return boolean Must be false if sunlight enhancement is not supported or the operation
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* failed; true in any other case.
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*/
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public static boolean setEnabled(boolean status) {
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if (sHasNativeSupport) {
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return LiveDisplayVendorImpl.native_setOutdoorModeEnabled(status);
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}
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return FileUtils.writeLine(FACEMELT_PATH, status ? FACEMELT_MODE : "0");
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}
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/**
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* Whether adaptive backlight (CABL / CABC) is required to be enabled
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*
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* @return boolean False if adaptive backlight is not a dependency
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*/
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public static boolean isAdaptiveBacklightRequired() {
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return false;
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}
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/**
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* Set this to true if the implementation is self-managed and does
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* it's own ambient sensing. In this case, setEnabled is assumed
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* to toggle the feature on or off, but not activate it. If set
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* to false, LiveDisplay will call setEnabled when the ambient lux
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* threshold is crossed.
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*
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* @return true if this enhancement is self-managed
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*/
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public static boolean isSelfManaged() {
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return false;
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}
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}
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