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msm8976-common: lineagehw: Update ReadingEnhancement for new API

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Change-Id: I8afaa7dfebfe765ef3d670f544344b7dea732ac2
This commit is contained in:
LuK1337 2018-08-10 11:37:53 +02:00 committed by Łukasz Patron
parent be2d161200
commit 4a56058afb
1 changed files with 27 additions and 3 deletions
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30
lineagehw/org/lineage/hardware/ReadingEnhancement.java
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@ -27,12 +27,36 @@ public class ReadingEnhancement {
private static final String ACCESSIBILITY_FILE =
"/sys/devices/virtual/mdnie/mdnie/accessibility";
/**
* Whether device supports Reader Mode
*
* @return boolean Supported devices must return always true
*/
public static boolean isSupported() {
return FileUtils.isFileWritable(ACCESSIBILITY_FILE);
return FileUtils.isFileWritable(ACCESSIBILITY_FILE) &&
FileUtils.isFileReadable(ACCESSIBILITY_FILE);
}
public static boolean setGrayscale(boolean state) {
return FileUtils.writeLine(ACCESSIBILITY_FILE, state ? "4" : "0");
/**
* This method return the current activation status of Reader Mode
*
* @return boolean Must be false when Reader Mode is not supported or not activated,
* or the operation failed while reading the status; true in any other case.
*/
public static boolean isEnabled() {
return FileUtils.readOneLine(ACCESSIBILITY_FILE).equals(
"Current accessibility : DSI0 : GRAYSCALE ");
}
/**
* This method allows to setup Reader Mode
*
* @param status The new Reader Mode status
* @return boolean Must be false if Reader Mode is not supported or the operation
* failed; true in any other case.
*/
public static boolean setEnabled(boolean status) {
return FileUtils.writeLine(ACCESSIBILITY_FILE, status ? "4" : "0");
}
}