Merge changes I72688f65,I2dd8d439 into pi-dev (6568eec3) · Commits · e / os / android_frameworks_base

services/usb/java/com/android/server/usb/UsbHostManager.java

+69 −37

Original line number	Diff line number	Diff line
		@@ -54,6 +54,7 @@ import java.util.LinkedList;
		public class UsbHostManager {
		private static final String TAG = UsbHostManager.class.getSimpleName();
		private static final boolean DEBUG = false;
		private static final int LINUX_FOUNDATION_VID = 0x1d6b;

		private final Context mContext;

		@@ -267,7 +268,6 @@ public class UsbHostManager {
		}

		private boolean isBlackListed(String deviceAddress) {
		Slog.i(TAG, "isBlackListed(" + deviceAddress + ")");
		int count = mHostBlacklist.length;
		for (int i = 0; i < count; i++) {
		if (deviceAddress.startsWith(mHostBlacklist[i])) {
		@@ -279,7 +279,6 @@ public class UsbHostManager {

		/* returns true if the USB device should not be accessible by applications */
		private boolean isBlackListed(int clazz, int subClass) {
		Slog.i(TAG, "isBlackListed(" + clazz + ", " + subClass + ")");
		// blacklist hubs
		if (clazz == UsbConstants.USB_CLASS_HUB) return true;

		@@ -302,6 +301,40 @@ public class UsbHostManager {
		}
		}

		private void logUsbDevice(UsbDescriptorParser descriptorParser) {
		int vid = 0;
		int pid = 0;
		String mfg = "<unknown>";
		String product = "<unknown>";
		String version = "<unknown>";
		String serial = "<unknown>";

		UsbDeviceDescriptor deviceDescriptor = descriptorParser.getDeviceDescriptor();
		if (deviceDescriptor != null) {
		vid = deviceDescriptor.getVendorID();
		pid = deviceDescriptor.getProductID();
		mfg = deviceDescriptor.getMfgString(descriptorParser);
		product = deviceDescriptor.getProductString(descriptorParser);
		version = deviceDescriptor.getDeviceReleaseString();
		serial = deviceDescriptor.getSerialString(descriptorParser);
		}

		if (vid == LINUX_FOUNDATION_VID) {
		return; // don't care about OS-constructed virtual USB devices.
		}
		boolean hasAudio = descriptorParser.hasAudioInterface();
		boolean hasHid = descriptorParser.hasHIDInterface();
		boolean hasStorage = descriptorParser.hasStorageInterface();

		String attachedString = "USB device attached: ";
		attachedString += String.format("vidpid %04x:%04x", vid, pid);
		attachedString += String.format(" mfg/product/ver/serial %s/%s/%s/%s",
		mfg, product, version, serial);
		attachedString += String.format(" hasAudio/HID/Storage: %b/%b/%b",
		hasAudio, hasHid, hasStorage);
		Slog.d(TAG, attachedString);
		}

		/* Called from JNI in monitorUsbHostBus() to report new USB devices
		Returns true if successful, i.e. the USB Audio device descriptors are
		correctly parsed and the unique device is added to the audio device list.
		@@ -313,10 +346,18 @@ public class UsbHostManager {
		Slog.d(TAG, "usbDeviceAdded(" + deviceAddress + ") - start");
		}

		// check class/subclass first as it is more likely to be blacklisted
		if (isBlackListed(deviceClass, deviceSubclass) \|\| isBlackListed(deviceAddress)) {
		if (isBlackListed(deviceAddress)) {
		if (DEBUG) {
		Slog.d(TAG, "device address is black listed");
		}
		return false;
		}
		UsbDescriptorParser parser = new UsbDescriptorParser(deviceAddress, descriptors);
		logUsbDevice(parser);

		if (isBlackListed(deviceClass, deviceSubclass)) {
		if (DEBUG) {
		Slog.d(TAG, "device is black listed");
		Slog.d(TAG, "device class is black listed");
		}
		return false;
		}
		@@ -329,9 +370,6 @@ public class UsbHostManager {
		return false;
		}

		UsbDescriptorParser parser = new UsbDescriptorParser(deviceAddress);
		if (parser.parseDescriptors(descriptors)) {

		UsbDevice newDevice = parser.toAndroidUsbDevice();
		if (newDevice == null) {
		Slog.e(TAG, "Couldn't create UsbDevice object.");
		@@ -340,6 +378,7 @@ public class UsbHostManager {
		parser.getRawDescriptors());
		} else {
		mDevices.put(deviceAddress, newDevice);
		Slog.d(TAG, "Added device " + newDevice);

		// It is fine to call this only for the current user as all broadcasts are
		// sent to all profiles of the user and the dialogs should only show once.
		@@ -357,13 +396,6 @@ public class UsbHostManager {
		addConnectionRecord(deviceAddress, ConnectionRecord.CONNECT,
		parser.getRawDescriptors());
		}
		} else {
		Slog.e(TAG, "Error parsing USB device descriptors for " + deviceAddress);
		// Tracking
		addConnectionRecord(deviceAddress, ConnectionRecord.CONNECT_BADPARSE,
		parser.getRawDescriptors());
		return false;
		}
		}

		if (DEBUG) {
		@@ -376,18 +408,18 @@ public class UsbHostManager {
		/* Called from JNI in monitorUsbHostBus to report USB device removal */
		@SuppressWarnings("unused")
		private void usbDeviceRemoved(String deviceAddress) {
		if (DEBUG) {
		Slog.d(TAG, "usbDeviceRemoved(" + deviceAddress + ") - start");
		}
		synchronized (mLock) {
		UsbDevice device = mDevices.remove(deviceAddress);
		if (device != null) {
		Slog.d(TAG, "Removed device at " + deviceAddress + ": " + device.getProductName());
		mUsbAlsaManager.usbDeviceRemoved(deviceAddress/device/);
		mSettingsManager.usbDeviceRemoved(device);
		getCurrentUserSettings().usbDeviceRemoved(device);

		// Tracking
		addConnectionRecord(deviceAddress, ConnectionRecord.DISCONNECT, null);
		} else {
		Slog.d(TAG, "Removed device at " + deviceAddress + " was already gone");
		}
		}
		}

services/usb/java/com/android/server/usb/descriptors/UsbDescriptorParser.java

+22 −20

Original line number	Diff line number	Diff line
		@@ -43,11 +43,6 @@ public final class UsbDescriptorParser {
		// Obtained from the first AudioClass Header descriptor.
		private int mACInterfacesSpec = UsbDeviceDescriptor.USBSPEC_1_0;

		public UsbDescriptorParser(String deviceAddr) {
		mDeviceAddr = deviceAddr;
		mDescriptors = new ArrayList<UsbDescriptor>(DESCRIPTORS_ALLOC_SIZE);
		}

		/**
		* Connect this parser to an existing set of already parsed descriptors.
		* This is useful for reporting.
		@@ -214,7 +209,7 @@ public final class UsbDescriptorParser {
		/**
		* @hide
		*/
		public boolean parseDescriptors(byte[] descriptors) {
		public void parseDescriptors(byte[] descriptors) {
		if (DEBUG) {
		Log.d(TAG, "parseDescriptors() - start");
		}
		@@ -248,17 +243,6 @@ public final class UsbDescriptorParser {
		if (DEBUG) {
		Log.d(TAG, "parseDescriptors() - end " + mDescriptors.size() + " descriptors.");
		}
		return true;
		}

		/**
		* @hide
		*/
		public boolean parseDevice() {
		byte[] rawDescriptors = getRawDescriptors();

		return rawDescriptors != null
		? parseDescriptors(rawDescriptors) : false;
		}

		public byte[] getRawDescriptors() {
		@@ -493,12 +477,30 @@ public final class UsbDescriptorParser {
		/**
		*@ hide
		*/
		public boolean hasHIDDescriptor() {
		public boolean hasAudioInterface() {
		ArrayList<UsbDescriptor> descriptors =
		getInterfaceDescriptorsForClass(UsbDescriptor.CLASSID_AUDIO);
		return !descriptors.isEmpty();
		}

		/**
		* @hide
		*/
		public boolean hasHIDInterface() {
		ArrayList<UsbDescriptor> descriptors =
		getInterfaceDescriptorsForClass(UsbDescriptor.CLASSID_HID);
		return !descriptors.isEmpty();
		}

		/**
		* @hide
		*/
		public boolean hasStorageInterface() {
		ArrayList<UsbDescriptor> descriptors =
		getInterfaceDescriptorsForClass(UsbDescriptor.CLASSID_STORAGE);
		return !descriptors.isEmpty();
		}

		/**
		* @hide
		*/
		@@ -540,7 +542,7 @@ public final class UsbDescriptorParser {
		probability += 0.75f;
		}

		if (hasMic && hasHIDDescriptor()) {
		if (hasMic && hasHIDInterface()) {
		probability += 0.25f;
		}

		@@ -593,7 +595,7 @@ public final class UsbDescriptorParser {
		probability += 0.75f;
		}

		if (hasSpeaker && hasHIDDescriptor()) {
		if (hasSpeaker && hasHIDInterface()) {
		probability += 0.25f;
		}

services/usb/java/com/android/server/usb/descriptors/UsbDeviceDescriptor.java

+29 −10

Original line number	Diff line number	Diff line
		@@ -48,7 +48,7 @@ public final class UsbDeviceDescriptor extends UsbDescriptor {
		private int mDeviceRelease; // 12:2 Device Release number - BCD
		private byte mMfgIndex; // 14:1 Index of Manufacturer String Descriptor
		private byte mProductIndex; // 15:1 Index of Product String Descriptor
		private byte mSerialNum; // 16:1 Index of Serial Number String Descriptor
		private byte mSerialIndex; // 16:1 Index of Serial Number String Descriptor
		private byte mNumConfigs; // 17:1 Number of Possible Configurations

		private ArrayList<UsbConfigDescriptor> mConfigDescriptors =
		@@ -91,16 +91,37 @@ public final class UsbDeviceDescriptor extends UsbDescriptor {
		return mDeviceRelease;
		}

		// mDeviceRelease is binary-coded decimal, format DD.DD
		public String getDeviceReleaseString() {
		int hundredths = mDeviceRelease & 0xF;
		int tenths = (mDeviceRelease & 0xF0) >> 4;
		int ones = (mDeviceRelease & 0xF00) >> 8;
		int tens = (mDeviceRelease & 0xF000) >> 12;
		return String.format("%d.%d%d", tens * 10 + ones, tenths, hundredths);
		}

		public byte getMfgIndex() {
		return mMfgIndex;
		}

		public String getMfgString(UsbDescriptorParser p) {
		return p.getDescriptorString(mMfgIndex);
		}

		public byte getProductIndex() {
		return mProductIndex;
		}

		public byte getSerialNum() {
		return mSerialNum;
		public String getProductString(UsbDescriptorParser p) {
		return p.getDescriptorString(mProductIndex);
		}

		public byte getSerialIndex() {
		return mSerialIndex;
		}

		public String getSerialString(UsbDescriptorParser p) {
		return p.getDescriptorString(mSerialIndex);
		}

		public byte getNumConfigs() {
		@@ -119,16 +140,14 @@ public final class UsbDeviceDescriptor extends UsbDescriptor {
		Log.d(TAG, "toAndroid()");
		}

		String mfgName = parser.getDescriptorString(mMfgIndex);
		String prodName = parser.getDescriptorString(mProductIndex);
		String mfgName = getMfgString(parser);
		String prodName = getProductString(parser);
		if (DEBUG) {
		Log.d(TAG, " mfgName:" + mfgName + " prodName:" + prodName);
		}

		// Create version string in "%.%" format
		String versionString =
		Integer.toString(mDeviceRelease >> 8) + "." + (mDeviceRelease & 0xFF);
		String serialStr = parser.getDescriptorString(mSerialNum);
		String versionString = getDeviceReleaseString();
		String serialStr = getSerialString(parser);
		if (DEBUG) {
		Log.d(TAG, " versionString:" + versionString + " serialStr:" + serialStr);
		}
		@@ -159,7 +178,7 @@ public final class UsbDeviceDescriptor extends UsbDescriptor {
		mDeviceRelease = stream.unpackUsbShort();
		mMfgIndex = stream.getByte();
		mProductIndex = stream.getByte();
		mSerialNum = stream.getByte();
		mSerialIndex = stream.getByte();
		mNumConfigs = stream.getByte();

		return mLength;

tests/UsbTests/res/raw/usbdescriptors_massstorage.bin

0 → 100644

+50 B

File added.

No diff preview for this file type.

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tests/UsbTests/src/com/android/server/usb/UsbDescriptorParserTests.java

+89 −8

Original line number	Diff line number	Diff line
		@@ -18,6 +18,7 @@ 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;
		@@ -28,6 +29,7 @@ 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;
		@@ -61,14 +63,24 @@ public class UsbDescriptorParserTests {
		}

		// Testing same codepath as UsbHostManager.java:usbDeviceAdded
		UsbDescriptorParser parser = new UsbDescriptorParser("test-usb-addr");
		if (!parser.parseDescriptors(descriptors)) {
		fail("failed to parse descriptors.");
		}
		UsbDescriptorParser parser = new UsbDescriptorParser("test-usb-addr", descriptors);
		return parser;
		}

		// A Headset has a microphone and a speaker and is a headset.
		/** 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() {
		@@ -77,9 +89,24 @@ public class UsbDescriptorParserTests {
		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.
		/** 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() {
		@@ -88,9 +115,24 @@ public class UsbDescriptorParserTests {
		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 has no microphones and aren't considered a headset.
		/** 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() {
		@@ -99,9 +141,20 @@ public class UsbDescriptorParserTests {
		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.
		/** 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() {
		@@ -110,6 +163,34 @@ public class UsbDescriptorParserTests {
		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");
		}

		}