1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.hardware.tests.extension.light@2.0; 18 19 import android.hardware.light@2.0; 20 21 enum Default : int32_t { 22 // for calls to setLight from the framework that don't know about this 23 // extension or its requirements 24 INTERPOLATION_OMEGA = 2 25 }; 26 27 /** 28 * One possibility is renaming an old type. Another possibility is taking 29 * advantages of the different namespaces. 30 */ 31 enum ExtBrightness : Brightness { 32 /** 33 * Say we're really going to use the phone as a heater. 34 */ 35 EXTREME, 36 37 /** 38 * Sometimes at night, we need it to be day. 39 */ 40 THE_SUN, 41 }; 42 43 /** 44 * Structs can't inherit eachother in hidl. Use composition instead. In this 45 * case, I won't use inheritence because I want to replace Brightness with 46 * ExtBrightness. 47 */ 48 struct ExtLightState { 49 LightState state; 50 51 /** 52 * This is the secret sauce that will really make this extension shine. 53 * No other person has such a cool feature in their hals. Don't forget 54 * to describe all details of parameters. An interface is a contract, and 55 * specifying this contract to the letter is what allows that contracted 56 * to be maintained. :) 57 * 58 * So, this parameter represents the speed at which brightness is changed 59 * to the new value in the three dimensional space with coordinates RGB 60 * from the red, blue, and green. 61 */ 62 int32_t interpolationOmega; 63 64 /** 65 * Include new values. 66 */ 67 ExtBrightness brightness; 68 }; 69