Merge "Add new USB details screen for Connected Devices 2.0"
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110
tests/robotests/src/android/hardware/usb/UsbManagerExtras.java
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110
tests/robotests/src/android/hardware/usb/UsbManagerExtras.java
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/*
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* Copyright (C) 2010 The Android Open Source 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 android.hardware.usb;
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import android.annotation.SystemService;
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import android.content.Context;
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import android.hardware.usb.gadget.V1_0.GadgetFunction;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.StringJoiner;
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/**
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* Definitions that were added to UsbManager in P.
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*
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* Copied partially from frameworks/base/core/java/android/hardware/usb/UsbManager to
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* fix issues with roboelectric during test.
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*/
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@SystemService(Context.USB_SERVICE)
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public class UsbManagerExtras {
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public static final long NONE = 0;
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public static final long MTP = GadgetFunction.MTP;
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public static final long PTP = GadgetFunction.PTP;
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public static final long RNDIS = GadgetFunction.RNDIS;
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public static final long MIDI = GadgetFunction.MIDI;
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public static final long ACCESSORY = GadgetFunction.ACCESSORY;
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public static final long AUDIO_SOURCE = GadgetFunction.AUDIO_SOURCE;
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public static final long ADB = GadgetFunction.ADB;
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private static final long SETTABLE_FUNCTIONS = MTP | PTP | RNDIS | MIDI;
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private static final Map<String, Long> STR_MAP = new HashMap<>();
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static {
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STR_MAP.put(UsbManager.USB_FUNCTION_MTP, MTP);
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STR_MAP.put(UsbManager.USB_FUNCTION_PTP, PTP);
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STR_MAP.put(UsbManager.USB_FUNCTION_RNDIS, RNDIS);
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STR_MAP.put(UsbManager.USB_FUNCTION_MIDI, MIDI);
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STR_MAP.put(UsbManager.USB_FUNCTION_ACCESSORY, ACCESSORY);
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STR_MAP.put(UsbManager.USB_FUNCTION_AUDIO_SOURCE, AUDIO_SOURCE);
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STR_MAP.put(UsbManager.USB_FUNCTION_ADB, ADB);
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}
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/**
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* Returns whether the given functions are valid inputs to UsbManager.
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* Currently the empty functions or any of MTP, PTP, RNDIS, MIDI are accepted.
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*/
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public static boolean isSettableFunctions(long functions) {
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return (~SETTABLE_FUNCTIONS & functions) == 0;
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}
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/**
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* Returns the string representation of the given functions.
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*/
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public static String usbFunctionsToString(long functions) {
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StringJoiner joiner = new StringJoiner(",");
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if ((functions | MTP) != 0) {
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joiner.add(UsbManager.USB_FUNCTION_MTP);
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}
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if ((functions | PTP) != 0) {
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joiner.add(UsbManager.USB_FUNCTION_PTP);
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}
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if ((functions | RNDIS) != 0) {
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joiner.add(UsbManager.USB_FUNCTION_RNDIS);
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}
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if ((functions | MIDI) != 0) {
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joiner.add(UsbManager.USB_FUNCTION_MIDI);
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}
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if ((functions | ACCESSORY) != 0) {
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joiner.add(UsbManager.USB_FUNCTION_ACCESSORY);
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}
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if ((functions | AUDIO_SOURCE) != 0) {
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joiner.add(UsbManager.USB_FUNCTION_AUDIO_SOURCE);
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}
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if ((functions | ADB) != 0) {
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joiner.add(UsbManager.USB_FUNCTION_ADB);
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}
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return joiner.toString();
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}
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/**
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* Parses a string of usb functions and returns a mask of the same functions.
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*/
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public static long usbFunctionsFromString(String functions) {
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if (functions == null) {
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return 0;
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}
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long ret = 0;
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for (String function : functions.split(",")) {
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if (STR_MAP.containsKey(function)) {
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ret |= STR_MAP.get(function);
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}
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}
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return ret;
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}
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}
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