| /* |
| * 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.usb; |
| |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.fail; |
| |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.content.res.Resources.NotFoundException; |
| import android.support.test.InstrumentationRegistry; |
| import android.support.test.filters.SmallTest; |
| import android.support.test.runner.AndroidJUnit4; |
| |
| import com.android.server.usb.descriptors.UsbDescriptorParser; |
| import com.android.server.usb.descriptors.UsbDeviceDescriptor; |
| import com.google.common.io.ByteStreams; |
| |
| import java.io.InputStream; |
| import java.io.IOException; |
| import java.lang.Exception; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| /** |
| * Tests for {@link com.android.server.usb.descriptors.UsbDescriptorParser} |
| */ |
| @RunWith(AndroidJUnit4.class) |
| public class UsbDescriptorParserTests { |
| |
| public UsbDescriptorParser loadParser(int resource) { |
| Context c = InstrumentationRegistry.getContext(); |
| Resources res = c.getResources(); |
| InputStream is = null; |
| try { |
| is = res.openRawResource(resource); |
| } catch (NotFoundException e) { |
| fail("Failed to load resource."); |
| } |
| |
| byte[] descriptors = null; |
| try { |
| descriptors = ByteStreams.toByteArray(is); |
| } catch (IOException e) { |
| fail("Failed to convert descriptor strema to bytearray."); |
| } |
| |
| // Testing same codepath as UsbHostManager.java:usbDeviceAdded |
| UsbDescriptorParser parser = new UsbDescriptorParser("test-usb-addr", descriptors); |
| return parser; |
| } |
| |
| /** A Headset has a microphone and a speaker and is a headset. |
| * Descriptors for this example show up on lsusb -v with: |
| * bcdDevice 22.80 |
| * and a UAC1 audio device with the following control interface: |
| * bInterfaceClass 1 Audio |
| * ... |
| * bDescriptorSubtype 2 (INPUT_TERMINAL) |
| * bTerminalID 1 |
| * wTerminalType 0x0201 Microphone |
| * ... |
| * bDescriptorSubtype 3 (OUTPUT_TERMINAL) |
| * bTerminalID 15 |
| * wTerminalType 0x0302 Headphones |
| */ |
| @Test |
| @SmallTest |
| public void testHeadsetDescriptorParser() { |
| UsbDescriptorParser parser = loadParser(R.raw.usbdescriptors_headset); |
| assertTrue(parser.hasInput()); |
| assertTrue(parser.hasOutput()); |
| assertTrue(parser.isInputHeadset()); |
| assertTrue(parser.isOutputHeadset()); |
| |
| assertTrue(parser.hasAudioInterface()); |
| assertTrue(parser.hasHIDInterface()); |
| assertFalse(parser.hasStorageInterface()); |
| |
| assertEquals(parser.getDeviceDescriptor().getDeviceReleaseString(), "22.80"); |
| } |
| |
| /** Headphones have no microphones but are considered a headset. |
| * Descriptors for this example show up on lsusb -v with: |
| * bcdDevice 22.80 |
| * and a UAC1 audio device with the following control interface: |
| * bInterfaceClass 1 Audio |
| * ... |
| * bDescriptorSubtype 3 (OUTPUT_TERMINAL) |
| * bTerminalID 15 |
| * wTerminalType 0x0302 Headphones |
| */ |
| @Test |
| @SmallTest |
| public void testHeadphoneDescriptorParser() { |
| UsbDescriptorParser parser = loadParser(R.raw.usbdescriptors_headphones); |
| assertFalse(parser.hasInput()); |
| assertTrue(parser.hasOutput()); |
| assertFalse(parser.isInputHeadset()); |
| assertTrue(parser.isOutputHeadset()); |
| |
| assertTrue(parser.hasAudioInterface()); |
| assertTrue(parser.hasHIDInterface()); |
| assertFalse(parser.hasStorageInterface()); |
| |
| assertEquals(parser.getDeviceDescriptor().getDeviceReleaseString(), "22.80"); |
| } |
| |
| /** Line out with no microphones aren't considered a headset. |
| * Descriptors for this example show up on lsusb -v with: |
| * bcdDevice 22.80 |
| * and the following UAC1 audio control interface |
| * bInterfaceClass 1 Audio |
| * ... |
| * bDescriptorSubtype 3 (OUTPUT_TERMINAL) |
| * bTerminalID 15 |
| * wTerminalType 0x0603 Line Connector |
| */ |
| @Test |
| @SmallTest |
| public void testLineoutDescriptorParser() { |
| UsbDescriptorParser parser = loadParser(R.raw.usbdescriptors_lineout); |
| assertFalse(parser.hasInput()); |
| assertTrue(parser.hasOutput()); |
| assertFalse(parser.isInputHeadset()); |
| assertFalse(parser.isOutputHeadset()); |
| |
| assertTrue(parser.hasAudioInterface()); |
| assertTrue(parser.hasHIDInterface()); |
| assertFalse(parser.hasStorageInterface()); |
| |
| assertEquals(parser.getDeviceDescriptor().getDeviceReleaseString(), "22.80"); |
| } |
| |
| /** An HID-only device shouldn't be considered anything at all. |
| /* Descriptors show up on lsusb -v with: |
| * bcdDevice 22.80 |
| * and a single HID interface, |
| * bInterfaceClass 3 Human Interface Device |
| */ |
| @Test |
| @SmallTest |
| public void testNothingDescriptorParser() { |
| UsbDescriptorParser parser = loadParser(R.raw.usbdescriptors_nothing); |
| assertFalse(parser.hasInput()); |
| assertFalse(parser.hasOutput()); |
| assertFalse(parser.isInputHeadset()); |
| assertFalse(parser.isOutputHeadset()); |
| |
| assertFalse(parser.hasAudioInterface()); |
| assertTrue(parser.hasHIDInterface()); |
| assertFalse(parser.hasStorageInterface()); |
| |
| assertEquals(parser.getDeviceDescriptor().getDeviceReleaseString(), "22.80"); |
| } |
| |
| /** A USB mass-storage device. |
| * Shows up on lsusb -v with: |
| * bcdDevice 2.08 |
| * and a single interface descriptor, |
| * bInterfaceClass 8 Mass Storage |
| */ |
| @Test |
| @SmallTest |
| public void testMassStorageDescriptorParser() { |
| UsbDescriptorParser parser = loadParser(R.raw.usbdescriptors_massstorage); |
| assertFalse(parser.hasInput()); |
| assertFalse(parser.hasOutput()); |
| assertFalse(parser.isInputHeadset()); |
| assertFalse(parser.isOutputHeadset()); |
| |
| assertFalse(parser.hasAudioInterface()); |
| assertFalse(parser.hasHIDInterface()); |
| assertTrue(parser.hasStorageInterface()); |
| |
| assertEquals(parser.getDeviceDescriptor().getDeviceReleaseString(), "2.08"); |
| } |
| |
| } |