| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.display; |
| |
| import android.Manifest; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.os.Binder; |
| import android.os.ShellCommand; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| |
| import java.io.PrintWriter; |
| |
| class DisplayManagerShellCommand extends ShellCommand { |
| private static final String TAG = "DisplayManagerShellCommand"; |
| |
| private final DisplayManagerService mService; |
| |
| DisplayManagerShellCommand(DisplayManagerService service) { |
| mService = service; |
| } |
| |
| @Override |
| public int onCommand(String cmd) { |
| if (cmd == null) { |
| return handleDefaultCommands(cmd); |
| } |
| final PrintWriter pw = getOutPrintWriter(); |
| switch(cmd) { |
| case "set-brightness": |
| return setBrightness(); |
| case "reset-brightness-configuration": |
| return resetBrightnessConfiguration(); |
| case "ab-logging-enable": |
| return setAutoBrightnessLoggingEnabled(true); |
| case "ab-logging-disable": |
| return setAutoBrightnessLoggingEnabled(false); |
| case "dwb-logging-enable": |
| return setDisplayWhiteBalanceLoggingEnabled(true); |
| case "dwb-logging-disable": |
| return setDisplayWhiteBalanceLoggingEnabled(false); |
| case "dmd-logging-enable": |
| return setDisplayModeDirectorLoggingEnabled(true); |
| case "dmd-logging-disable": |
| return setDisplayModeDirectorLoggingEnabled(false); |
| case "dwb-set-cct": |
| return setAmbientColorTemperatureOverride(); |
| default: |
| return handleDefaultCommands(cmd); |
| } |
| } |
| |
| @Override |
| public void onHelp() { |
| final PrintWriter pw = getOutPrintWriter(); |
| pw.println("Display manager commands:"); |
| pw.println(" help"); |
| pw.println(" Print this help text."); |
| pw.println(); |
| pw.println(" set-brightness BRIGHTNESS"); |
| pw.println(" Sets the current brightness to BRIGHTNESS (a number between 0 and 1)."); |
| pw.println(" reset-brightness-configuration"); |
| pw.println(" Reset the brightness to its default configuration."); |
| pw.println(" ab-logging-enable"); |
| pw.println(" Enable auto-brightness logging."); |
| pw.println(" ab-logging-disable"); |
| pw.println(" Disable auto-brightness logging."); |
| pw.println(" dwb-logging-enable"); |
| pw.println(" Enable display white-balance logging."); |
| pw.println(" dwb-logging-disable"); |
| pw.println(" Disable display white-balance logging."); |
| pw.println(" dmd-logging-enable"); |
| pw.println(" Enable display mode director logging."); |
| pw.println(" dmd-logging-disable"); |
| pw.println(" Disable display mode director logging."); |
| pw.println(" dwb-set-cct CCT"); |
| pw.println(" Sets the ambient color temperature override to CCT (use -1 to disable)."); |
| pw.println(); |
| Intent.printIntentArgsHelp(pw , ""); |
| } |
| |
| private int setBrightness() { |
| String brightnessText = getNextArg(); |
| if (brightnessText == null) { |
| getErrPrintWriter().println("Error: no brightness specified"); |
| return 1; |
| } |
| float brightness = -1.0f; |
| try { |
| brightness = Float.parseFloat(brightnessText); |
| } catch (NumberFormatException e) { |
| } |
| if (brightness < 0 || brightness > 1) { |
| getErrPrintWriter().println("Error: brightness should be a number between 0 and 1"); |
| return 1; |
| } |
| |
| final Context context = mService.getContext(); |
| context.enforceCallingOrSelfPermission( |
| Manifest.permission.CONTROL_DISPLAY_BRIGHTNESS, |
| "Permission required to set the display's brightness"); |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| Settings.System.putFloatForUser(context.getContentResolver(), |
| Settings.System.SCREEN_BRIGHTNESS_FLOAT, brightness, |
| UserHandle.USER_CURRENT); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| return 0; |
| } |
| |
| private int resetBrightnessConfiguration() { |
| mService.resetBrightnessConfiguration(); |
| return 0; |
| } |
| |
| private int setAutoBrightnessLoggingEnabled(boolean enabled) { |
| mService.setAutoBrightnessLoggingEnabled(enabled); |
| return 0; |
| } |
| |
| private int setDisplayWhiteBalanceLoggingEnabled(boolean enabled) { |
| mService.setDisplayWhiteBalanceLoggingEnabled(enabled); |
| return 0; |
| } |
| |
| private int setDisplayModeDirectorLoggingEnabled(boolean enabled) { |
| mService.setDisplayModeDirectorLoggingEnabled(enabled); |
| return 0; |
| } |
| |
| private int setAmbientColorTemperatureOverride() { |
| String cctText = getNextArg(); |
| if (cctText == null) { |
| getErrPrintWriter().println("Error: no cct specified"); |
| return 1; |
| } |
| float cct; |
| try { |
| cct = Float.parseFloat(cctText); |
| } catch (NumberFormatException e) { |
| getErrPrintWriter().println("Error: cct should be a number"); |
| return 1; |
| } |
| mService.setAmbientColorTemperatureOverride(cct); |
| return 0; |
| } |
| } |