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-rw-r--r--api/current.xml222
-rw-r--r--core/java/android/hardware/usb/UsbDevice.java150
-rw-r--r--core/java/android/hardware/usb/UsbDeviceConnection.java163
-rw-r--r--core/java/android/hardware/usb/UsbEndpoint.java37
-rw-r--r--core/java/android/hardware/usb/UsbInterface.java34
-rw-r--r--core/java/android/hardware/usb/UsbManager.java19
-rw-r--r--core/java/android/hardware/usb/UsbRequest.java19
-rw-r--r--core/jni/Android.mk1
-rw-r--r--core/jni/AndroidRuntime.cpp2
-rw-r--r--core/jni/android_hardware_UsbDevice.cpp202
-rw-r--r--core/jni/android_hardware_UsbDeviceConnection.cpp242
-rw-r--r--core/jni/android_hardware_UsbRequest.cpp10
-rw-r--r--media/java/android/mtp/MtpClient.java12
-rw-r--r--media/java/android/mtp/MtpDevice.java19
14 files changed, 572 insertions, 560 deletions
diff --git a/api/current.xml b/api/current.xml
index ace309b..b2e71fa 100644
--- a/api/current.xml
+++ b/api/current.xml
@@ -94880,13 +94880,13 @@
extends="java.lang.Object"
abstract="false"
static="false"
- final="true"
+ final="false"
deprecated="not deprecated"
visibility="public"
>
<implements name="android.os.Parcelable">
</implements>
-<method name="bulkTransfer"
+<method name="describeContents"
return="int"
abstract="false"
native="false"
@@ -94896,17 +94896,9 @@
deprecated="not deprecated"
visibility="public"
>
-<parameter name="endpoint" type="android.hardware.usb.UsbEndpoint">
-</parameter>
-<parameter name="buffer" type="byte[]">
-</parameter>
-<parameter name="length" type="int">
-</parameter>
-<parameter name="timeout" type="int">
-</parameter>
</method>
-<method name="claimInterface"
- return="boolean"
+<method name="getDeviceClass"
+ return="int"
abstract="false"
native="false"
synchronized="false"
@@ -94915,13 +94907,9 @@
deprecated="not deprecated"
visibility="public"
>
-<parameter name="intf" type="android.hardware.usb.UsbInterface">
-</parameter>
-<parameter name="force" type="boolean">
-</parameter>
</method>
-<method name="close"
- return="void"
+<method name="getDeviceId"
+ return="int"
abstract="false"
native="false"
synchronized="false"
@@ -94931,33 +94919,21 @@
visibility="public"
>
</method>
-<method name="controlTransfer"
+<method name="getDeviceId"
return="int"
abstract="false"
native="false"
synchronized="false"
- static="false"
+ static="true"
final="false"
deprecated="not deprecated"
visibility="public"
>
-<parameter name="requestType" type="int">
-</parameter>
-<parameter name="request" type="int">
-</parameter>
-<parameter name="value" type="int">
-</parameter>
-<parameter name="index" type="int">
-</parameter>
-<parameter name="buffer" type="byte[]">
-</parameter>
-<parameter name="length" type="int">
-</parameter>
-<parameter name="timeout" type="int">
+<parameter name="name" type="java.lang.String">
</parameter>
</method>
-<method name="describeContents"
- return="int"
+<method name="getDeviceName"
+ return="java.lang.String"
abstract="false"
native="false"
synchronized="false"
@@ -94967,18 +94943,20 @@
visibility="public"
>
</method>
-<method name="getDeviceClass"
- return="int"
+<method name="getDeviceName"
+ return="java.lang.String"
abstract="false"
native="false"
synchronized="false"
- static="false"
+ static="true"
final="false"
deprecated="not deprecated"
visibility="public"
>
+<parameter name="id" type="int">
+</parameter>
</method>
-<method name="getDeviceId"
+<method name="getDeviceProtocol"
return="int"
abstract="false"
native="false"
@@ -94989,21 +94967,19 @@
visibility="public"
>
</method>
-<method name="getDeviceId"
+<method name="getDeviceSubclass"
return="int"
abstract="false"
native="false"
synchronized="false"
- static="true"
+ static="false"
final="false"
deprecated="not deprecated"
visibility="public"
>
-<parameter name="name" type="java.lang.String">
-</parameter>
</method>
-<method name="getDeviceName"
- return="java.lang.String"
+<method name="getInterface"
+ return="android.hardware.usb.UsbInterface"
abstract="false"
native="false"
synchronized="false"
@@ -95012,21 +94988,21 @@
deprecated="not deprecated"
visibility="public"
>
+<parameter name="index" type="int">
+</parameter>
</method>
-<method name="getDeviceName"
- return="java.lang.String"
+<method name="getInterfaceCount"
+ return="int"
abstract="false"
native="false"
synchronized="false"
- static="true"
+ static="false"
final="false"
deprecated="not deprecated"
visibility="public"
>
-<parameter name="id" type="int">
-</parameter>
</method>
-<method name="getDeviceProtocol"
+<method name="getProductId"
return="int"
abstract="false"
native="false"
@@ -95037,7 +95013,7 @@
visibility="public"
>
</method>
-<method name="getDeviceSubclass"
+<method name="getVendorId"
return="int"
abstract="false"
native="false"
@@ -95048,8 +95024,8 @@
visibility="public"
>
</method>
-<method name="getFileDescriptor"
- return="int"
+<method name="writeToParcel"
+ return="void"
abstract="false"
native="false"
synchronized="false"
@@ -95058,21 +95034,31 @@
deprecated="not deprecated"
visibility="public"
>
+<parameter name="parcel" type="android.os.Parcel">
+</parameter>
+<parameter name="flags" type="int">
+</parameter>
</method>
-<method name="getInterface"
- return="android.hardware.usb.UsbInterface"
+<field name="CREATOR"
+ type="android.os.Parcelable.Creator"
+ transient="false"
+ volatile="false"
+ static="true"
+ final="true"
+ deprecated="not deprecated"
+ visibility="public"
+>
+</field>
+</class>
+<class name="UsbDeviceConnection"
+ extends="java.lang.Object"
abstract="false"
- native="false"
- synchronized="false"
static="false"
final="false"
deprecated="not deprecated"
visibility="public"
>
-<parameter name="index" type="int">
-</parameter>
-</method>
-<method name="getInterfaceCount"
+<method name="bulkTransfer"
return="int"
abstract="false"
native="false"
@@ -95082,9 +95068,17 @@
deprecated="not deprecated"
visibility="public"
>
+<parameter name="endpoint" type="android.hardware.usb.UsbEndpoint">
+</parameter>
+<parameter name="buffer" type="byte[]">
+</parameter>
+<parameter name="length" type="int">
+</parameter>
+<parameter name="timeout" type="int">
+</parameter>
</method>
-<method name="getProductId"
- return="int"
+<method name="claimInterface"
+ return="boolean"
abstract="false"
native="false"
synchronized="false"
@@ -95093,9 +95087,13 @@
deprecated="not deprecated"
visibility="public"
>
+<parameter name="intf" type="android.hardware.usb.UsbInterface">
+</parameter>
+<parameter name="force" type="boolean">
+</parameter>
</method>
-<method name="getSerial"
- return="java.lang.String"
+<method name="close"
+ return="void"
abstract="false"
native="false"
synchronized="false"
@@ -95105,7 +95103,7 @@
visibility="public"
>
</method>
-<method name="getVendorId"
+<method name="controlTransfer"
return="int"
abstract="false"
native="false"
@@ -95115,9 +95113,23 @@
deprecated="not deprecated"
visibility="public"
>
+<parameter name="requestType" type="int">
+</parameter>
+<parameter name="request" type="int">
+</parameter>
+<parameter name="value" type="int">
+</parameter>
+<parameter name="index" type="int">
+</parameter>
+<parameter name="buffer" type="byte[]">
+</parameter>
+<parameter name="length" type="int">
+</parameter>
+<parameter name="timeout" type="int">
+</parameter>
</method>
-<method name="releaseInterface"
- return="boolean"
+<method name="getFileDescriptor"
+ return="int"
abstract="false"
native="false"
synchronized="false"
@@ -95126,11 +95138,9 @@
deprecated="not deprecated"
visibility="public"
>
-<parameter name="intf" type="android.hardware.usb.UsbInterface">
-</parameter>
</method>
-<method name="requestWait"
- return="android.hardware.usb.UsbRequest"
+<method name="getSerial"
+ return="java.lang.String"
abstract="false"
native="false"
synchronized="false"
@@ -95140,8 +95150,8 @@
visibility="public"
>
</method>
-<method name="writeToParcel"
- return="void"
+<method name="releaseInterface"
+ return="boolean"
abstract="false"
native="false"
synchronized="false"
@@ -95150,27 +95160,26 @@
deprecated="not deprecated"
visibility="public"
>
-<parameter name="parcel" type="android.os.Parcel">
-</parameter>
-<parameter name="flags" type="int">
+<parameter name="intf" type="android.hardware.usb.UsbInterface">
</parameter>
</method>
-<field name="CREATOR"
- type="android.os.Parcelable.Creator"
- transient="false"
- volatile="false"
- static="true"
- final="true"
+<method name="requestWait"
+ return="android.hardware.usb.UsbRequest"
+ abstract="false"
+ native="false"
+ synchronized="false"
+ static="false"
+ final="false"
deprecated="not deprecated"
visibility="public"
>
-</field>
+</method>
</class>
<class name="UsbEndpoint"
extends="java.lang.Object"
abstract="false"
static="false"
- final="true"
+ final="false"
deprecated="not deprecated"
visibility="public"
>
@@ -95209,17 +95218,6 @@
visibility="public"
>
</method>
-<method name="getDevice"
- return="android.hardware.usb.UsbDevice"
- abstract="false"
- native="false"
- synchronized="false"
- static="false"
- final="false"
- deprecated="not deprecated"
- visibility="public"
->
-</method>
<method name="getDirection"
return="int"
abstract="false"
@@ -95242,17 +95240,6 @@
visibility="public"
>
</method>
-<method name="getInterface"
- return="android.hardware.usb.UsbInterface"
- abstract="false"
- native="false"
- synchronized="false"
- static="false"
- final="false"
- deprecated="not deprecated"
- visibility="public"
->
-</method>
<method name="getInterval"
return="int"
abstract="false"
@@ -95333,17 +95320,6 @@
visibility="public"
>
</method>
-<method name="getDevice"
- return="android.hardware.usb.UsbDevice"
- abstract="false"
- native="false"
- synchronized="false"
- static="false"
- final="false"
- deprecated="not deprecated"
- visibility="public"
->
-</method>
<method name="getEndpoint"
return="android.hardware.usb.UsbEndpoint"
abstract="false"
@@ -95534,7 +95510,7 @@
</parameter>
</method>
<method name="openDevice"
- return="boolean"
+ return="android.hardware.usb.UsbDeviceConnection"
abstract="false"
native="false"
synchronized="false"
@@ -95834,6 +95810,8 @@
deprecated="not deprecated"
visibility="public"
>
+<parameter name="connection" type="android.hardware.usb.UsbDeviceConnection">
+</parameter>
<parameter name="endpoint" type="android.hardware.usb.UsbEndpoint">
</parameter>
</method>
@@ -113765,7 +113743,7 @@
deprecated="not deprecated"
visibility="public"
>
-<parameter name="manager" type="android.hardware.usb.UsbManager">
+<parameter name="connection" type="android.hardware.usb.UsbDeviceConnection">
</parameter>
</method>
</class>
@@ -267438,7 +267416,7 @@
deprecated="not deprecated"
visibility="public"
>
-<parameter name="arg0" type="T">
+<parameter name="t" type="T">
</parameter>
</method>
</interface>
diff --git a/core/java/android/hardware/usb/UsbDevice.java b/core/java/android/hardware/usb/UsbDevice.java
index 39254b38..9e536a7 100644
--- a/core/java/android/hardware/usb/UsbDevice.java
+++ b/core/java/android/hardware/usb/UsbDevice.java
@@ -19,33 +19,24 @@ package android.hardware.usb;
import android.os.Bundle;
import android.os.Parcel;
import android.os.Parcelable;
-import android.os.ParcelFileDescriptor;
import android.util.Log;
import java.io.FileDescriptor;
-
/**
* A class representing a USB device.
*/
-public final class UsbDevice implements Parcelable {
+public class UsbDevice implements Parcelable {
private static final String TAG = "UsbDevice";
- private String mName;
- private int mVendorId;
- private int mProductId;
- private int mClass;
- private int mSubclass;
- private int mProtocol;
- private Parcelable[] mInterfaces;
-
- // used by the JNI code
- private int mNativeContext;
-
- private UsbDevice() {
- }
-
+ private final String mName;
+ private final int mVendorId;
+ private final int mProductId;
+ private final int mClass;
+ private final int mSubclass;
+ private final int mProtocol;
+ private final Parcelable[] mInterfaces;
/**
* UsbDevice should only be instantiated by UsbService implementation
@@ -150,114 +141,6 @@ public final class UsbDevice implements Parcelable {
return (UsbInterface)mInterfaces[index];
}
- /* package */ boolean open(ParcelFileDescriptor pfd) {
- return native_open(mName, pfd.getFileDescriptor());
- }
-
- /**
- * Releases all system resources related to the device.
- */
- public void close() {
- native_close();
- }
-
- /**
- * Returns an integer file descriptor for the device, or
- * -1 if the device is not opened.
- * This is intended for passing to native code to access the device
- */
- public int getFileDescriptor() {
- return native_get_fd();
- }
-
- /**
- * Claims exclusive access to a {@link android.hardware.usb.UsbInterface}.
- * This must be done before sending or receiving data on any
- * {@link android.hardware.usb.UsbEndpoint}s belonging to the interface
- * @param intf the interface to claim
- * @param force true to disconnect kernel driver if necessary
- * @return true if the interface was successfully claimed
- */
- public boolean claimInterface(UsbInterface intf, boolean force) {
- return native_claim_interface(intf.getId(), force);
- }
-
- /**
- * Releases exclusive access to a {@link android.hardware.usb.UsbInterface}.
- *
- * @return true if the interface was successfully released
- */
- public boolean releaseInterface(UsbInterface intf) {
- return native_release_interface(intf.getId());
- }
-
- /**
- * Performs a control transaction on endpoint zero for this device.
- * The direction of the transfer is determined by the request type.
- * If requestType & {@link UsbConstants#USB_ENDPOINT_DIR_MASK} is
- * {@link UsbConstants#USB_DIR_OUT}, then the transfer is a write,
- * and if it is {@link UsbConstants#USB_DIR_IN}, then the transfer
- * is a read.
- *
- * @param requestType request type for this transaction
- * @param request request ID for this transaction
- * @param value value field for this transaction
- * @param index index field for this transaction
- * @param buffer buffer for data portion of transaction,
- * or null if no data needs to be sent or received
- * @param length the length of the data to send or receive
- * @param timeout in milliseconds
- * @return length of data transferred (or zero) for success,
- * or negative value for failure
- */
- public int controlTransfer(int requestType, int request, int value,
- int index, byte[] buffer, int length, int timeout) {
- return native_control_request(requestType, request, value, index, buffer, length, timeout);
- }
-
- /**
- * Performs a bulk transaction on the given endpoint.
- * The direction of the transfer is determined by the direction of the endpoint
- *
- * @param endpoint the endpoint for this transaction
- * @param buffer buffer for data to send or receive,
- * @param length the length of the data to send or receive
- * @param timeout in milliseconds
- * @return length of data transferred (or zero) for success,
- * or negative value for failure
- */
- public int bulkTransfer(UsbEndpoint endpoint, byte[] buffer, int length, int timeout) {
- return native_bulk_request(endpoint.getAddress(), buffer, length, timeout);
- }
-
- /**
- * Waits for the result of a {@link android.hardware.usb.UsbRequest#queue} operation
- * Note that this may return requests queued on multiple
- * {@link android.hardware.usb.UsbEndpoint}s.
- * When multiple endpoints are in use, {@link android.hardware.usb.UsbRequest#getEndpoint} and
- * {@link android.hardware.usb.UsbRequest#getClientData} can be useful in determining
- * how to process the result of this function.
- *
- * @return a completed USB request, or null if an error occurred
- */
- public UsbRequest requestWait() {
- UsbRequest request = native_request_wait();
- if (request != null) {
- request.dequeue();
- }
- return request;
- }
-
- /**
- * Returns the serial number for the device.
- * This will return null if the device has not been opened.
- *
- * @return the device serial number
- */
- public String getSerial() {
- return native_get_serial();
- }
-
@Override
public boolean equals(Object o) {
if (o instanceof UsbDevice) {
@@ -292,11 +175,7 @@ public final class UsbDevice implements Parcelable {
int subClass = in.readInt();
int protocol = in.readInt();
Parcelable[] interfaces = in.readParcelableArray(UsbInterface.class.getClassLoader());
- UsbDevice result = new UsbDevice(name, vendorId, productId, clasz, subClass, protocol, interfaces);
- for (int i = 0; i < interfaces.length; i++) {
- ((UsbInterface)interfaces[i]).setDevice(result);
- }
- return result;
+ return new UsbDevice(name, vendorId, productId, clasz, subClass, protocol, interfaces);
}
public UsbDevice[] newArray(int size) {
@@ -326,17 +205,6 @@ public final class UsbDevice implements Parcelable {
return native_get_device_name(id);
}
- private native boolean native_open(String deviceName, FileDescriptor pfd);
- private native void native_close();
- private native int native_get_fd();
- private native boolean native_claim_interface(int interfaceID, boolean force);
- private native boolean native_release_interface(int interfaceID);
- private native int native_control_request(int requestType, int request, int value,
- int index, byte[] buffer, int length, int timeout);
- private native int native_bulk_request(int endpoint, byte[] buffer, int length, int timeout);
- private native UsbRequest native_request_wait();
- private native String native_get_serial();
-
private static native int native_get_device_id(String name);
private static native String native_get_device_name(int id);
}
diff --git a/core/java/android/hardware/usb/UsbDeviceConnection.java b/core/java/android/hardware/usb/UsbDeviceConnection.java
new file mode 100644
index 0000000..876287c
--- /dev/null
+++ b/core/java/android/hardware/usb/UsbDeviceConnection.java
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2011 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 android.hardware.usb;
+
+import android.os.ParcelFileDescriptor;
+import android.util.Log;
+
+import java.io.FileDescriptor;
+
+
+/**
+ * A class representing a USB device.
+ */
+public class UsbDeviceConnection {
+
+ private static final String TAG = "UsbDeviceConnection";
+
+ private final UsbDevice mDevice;
+
+ // used by the JNI code
+ private int mNativeContext;
+
+ /**
+ * UsbDevice should only be instantiated by UsbService implementation
+ * @hide
+ */
+ public UsbDeviceConnection(UsbDevice device) {
+ mDevice = device;
+ }
+
+ /* package */ boolean open(String name, ParcelFileDescriptor pfd) {
+ return native_open(name, pfd.getFileDescriptor());
+ }
+
+ /**
+ * Releases all system resources related to the device.
+ */
+ public void close() {
+ native_close();
+ }
+
+ /**
+ * Returns an integer file descriptor for the device, or
+ * -1 if the device is not opened.
+ * This is intended for passing to native code to access the device
+ */
+ public int getFileDescriptor() {
+ return native_get_fd();
+ }
+
+ /**
+ * Claims exclusive access to a {@link android.hardware.usb.UsbInterface}.
+ * This must be done before sending or receiving data on any
+ * {@link android.hardware.usb.UsbEndpoint}s belonging to the interface
+ * @param intf the interface to claim
+ * @param force true to disconnect kernel driver if necessary
+ * @return true if the interface was successfully claimed
+ */
+ public boolean claimInterface(UsbInterface intf, boolean force) {
+ return native_claim_interface(intf.getId(), force);
+ }
+
+ /**
+ * Releases exclusive access to a {@link android.hardware.usb.UsbInterface}.
+ *
+ * @return true if the interface was successfully released
+ */
+ public boolean releaseInterface(UsbInterface intf) {
+ return native_release_interface(intf.getId());
+ }
+
+ /**
+ * Performs a control transaction on endpoint zero for this device.
+ * The direction of the transfer is determined by the request type.
+ * If requestType & {@link UsbConstants#USB_ENDPOINT_DIR_MASK} is
+ * {@link UsbConstants#USB_DIR_OUT}, then the transfer is a write,
+ * and if it is {@link UsbConstants#USB_DIR_IN}, then the transfer
+ * is a read.
+ *
+ * @param requestType request type for this transaction
+ * @param request request ID for this transaction
+ * @param value value field for this transaction
+ * @param index index field for this transaction
+ * @param buffer buffer for data portion of transaction,
+ * or null if no data needs to be sent or received
+ * @param length the length of the data to send or receive
+ * @param timeout in milliseconds
+ * @return length of data transferred (or zero) for success,
+ * or negative value for failure
+ */
+ public int controlTransfer(int requestType, int request, int value,
+ int index, byte[] buffer, int length, int timeout) {
+ return native_control_request(requestType, request, value, index, buffer, length, timeout);
+ }
+
+ /**
+ * Performs a bulk transaction on the given endpoint.
+ * The direction of the transfer is determined by the direction of the endpoint
+ *
+ * @param endpoint the endpoint for this transaction
+ * @param buffer buffer for data to send or receive,
+ * @param length the length of the data to send or receive
+ * @param timeout in milliseconds
+ * @return length of data transferred (or zero) for success,
+ * or negative value for failure
+ */
+ public int bulkTransfer(UsbEndpoint endpoint, byte[] buffer, int length, int timeout) {
+ return native_bulk_request(endpoint.getAddress(), buffer, length, timeout);
+ }
+
+ /**
+ * Waits for the result of a {@link android.hardware.usb.UsbRequest#queue} operation
+ * Note that this may return requests queued on multiple
+ * {@link android.hardware.usb.UsbEndpoint}s.
+ * When multiple endpoints are in use, {@link android.hardware.usb.UsbRequest#getEndpoint} and
+ * {@link android.hardware.usb.UsbRequest#getClientData} can be useful in determining
+ * how to process the result of this function.
+ *
+ * @return a completed USB request, or null if an error occurred
+ */
+ public UsbRequest requestWait() {
+ UsbRequest request = native_request_wait();
+ if (request != null) {
+ request.dequeue();
+ }
+ return request;
+ }
+
+ /**
+ * Returns the serial number for the device.
+ * This will return null if the device has not been opened.
+ *
+ * @return the device serial number
+ */
+ public String getSerial() {
+ return native_get_serial();
+ }
+
+ private native boolean native_open(String deviceName, FileDescriptor pfd);
+ private native void native_close();
+ private native int native_get_fd();
+ private native boolean native_claim_interface(int interfaceID, boolean force);
+ private native boolean native_release_interface(int interfaceID);
+ private native int native_control_request(int requestType, int request, int value,
+ int index, byte[] buffer, int length, int timeout);
+ private native int native_bulk_request(int endpoint, byte[] buffer, int length, int timeout);
+ private native UsbRequest native_request_wait();
+ private native String native_get_serial();
+}
diff --git a/core/java/android/hardware/usb/UsbEndpoint.java b/core/java/android/hardware/usb/UsbEndpoint.java
index a48d88f..bc2c2c1 100644
--- a/core/java/android/hardware/usb/UsbEndpoint.java
+++ b/core/java/android/hardware/usb/UsbEndpoint.java
@@ -23,16 +23,12 @@ import android.os.Parcelable;
/**
* A class representing an endpoint on a {@link android.hardware.usb.UsbInterface}.
*/
-public final class UsbEndpoint implements Parcelable {
+public class UsbEndpoint implements Parcelable {
- private int mAddress;
- private int mAttributes;
- private int mMaxPacketSize;
- private int mInterval;
- private UsbInterface mInterface;
-
- private UsbEndpoint() {
- }
+ private final int mAddress;
+ private final int mAttributes;
+ private final int mMaxPacketSize;
+ private final int mInterval;
/**
* UsbEndpoint should only be instantiated by UsbService implementation
@@ -119,29 +115,6 @@ public final class UsbEndpoint implements Parcelable {
return mInterval;
}
- /**
- * Returns the {@link android.hardware.usb.UsbInterface} this endpoint belongs to.
- *
- * @return the endpoint's interface
- */
- public UsbInterface getInterface() {
- return mInterface;
- }
-
- /**
- * Returns the {@link android.hardware.usb.UsbDevice} this endpoint belongs to.
- *
- * @return the endpoint's device
- */
- public UsbDevice getDevice() {
- return mInterface.getDevice();
- }
-
- // only used for parcelling
- /* package */ void setInterface(UsbInterface intf) {
- mInterface = intf;
- }
-
@Override
public String toString() {
return "UsbEndpoint[mAddress=" + mAddress + ",mAttributes=" + mAttributes +
diff --git a/core/java/android/hardware/usb/UsbInterface.java b/core/java/android/hardware/usb/UsbInterface.java
index b3b0e81..2b4c7c0 100644
--- a/core/java/android/hardware/usb/UsbInterface.java
+++ b/core/java/android/hardware/usb/UsbInterface.java
@@ -25,15 +25,11 @@ import android.os.Parcelable;
*/
public class UsbInterface implements Parcelable {
- private int mId;
- private int mClass;
- private int mSubclass;
- private int mProtocol;
- private UsbDevice mDevice;
- private Parcelable[] mEndpoints;
-
- private UsbInterface() {
- }
+ private final int mId;
+ private final int mClass;
+ private final int mSubclass;
+ private final int mProtocol;
+ private final Parcelable[] mEndpoints;
/**
* UsbInterface should only be instantiated by UsbService implementation
@@ -104,20 +100,6 @@ public class UsbInterface implements Parcelable {
return (UsbEndpoint)mEndpoints[index];
}
- /**
- * Returns the {@link android.hardware.usb.UsbDevice} this interface belongs to.
- *
- * @return the interface's device
- */
- public UsbDevice getDevice() {
- return mDevice;
- }
-
- // only used for parcelling
- /* package */ void setDevice(UsbDevice device) {
- mDevice = device;
- }
-
@Override
public String toString() {
return "UsbInterface[mId=" + mId + ",mClass=" + mClass +
@@ -133,11 +115,7 @@ public class UsbInterface implements Parcelable {
int subClass = in.readInt();
int protocol = in.readInt();
Parcelable[] endpoints = in.readParcelableArray(UsbEndpoint.class.getClassLoader());
- UsbInterface result = new UsbInterface(id, Class, subClass, protocol, endpoints);
- for (int i = 0; i < endpoints.length; i++) {
- ((UsbEndpoint)endpoints[i]).setInterface(result);
- }
- return result;
+ return new UsbInterface(id, Class, subClass, protocol, endpoints);
}
public UsbInterface[] newArray(int size) {
diff --git a/core/java/android/hardware/usb/UsbManager.java b/core/java/android/hardware/usb/UsbManager.java
index e80c744..41ede14 100644
--- a/core/java/android/hardware/usb/UsbManager.java
+++ b/core/java/android/hardware/usb/UsbManager.java
@@ -227,19 +227,22 @@ public class UsbManager {
* @param device the device to open
* @return true if we successfully opened the device
*/
- public boolean openDevice(UsbDevice device) {
+ public UsbDeviceConnection openDevice(UsbDevice device) {
try {
- ParcelFileDescriptor pfd = mService.openDevice(device.getDeviceName());
- if (pfd == null) {
- return false;
+ String deviceName = device.getDeviceName();
+ ParcelFileDescriptor pfd = mService.openDevice(deviceName);
+ if (pfd != null) {
+ UsbDeviceConnection connection = new UsbDeviceConnection(device);
+ boolean result = connection.open(deviceName, pfd);
+ pfd.close();
+ if (result) {
+ return connection;
+ }
}
- boolean result = device.open(pfd);
- pfd.close();
- return result;
} catch (Exception e) {
Log.e(TAG, "exception in UsbManager.openDevice", e);
- return false;
}
+ return null;
}
/**
diff --git a/core/java/android/hardware/usb/UsbRequest.java b/core/java/android/hardware/usb/UsbRequest.java
index 80085c1..5fe6c8c 100644
--- a/core/java/android/hardware/usb/UsbRequest.java
+++ b/core/java/android/hardware/usb/UsbRequest.java
@@ -23,9 +23,9 @@ import java.nio.ByteBuffer;
/**
* A class representing USB request packet.
* This can be used for both reading and writing data to or from a
- * {@link android.hardware.usb.UsbDevice}.
+ * {@link android.hardware.usb.UsbDeviceConnection}.
* UsbRequests are sent asynchronously via {@link #queue} and the results
- * are read by {@link android.hardware.usb.UsbDevice#requestWait}.
+ * are read by {@link android.hardware.usb.UsbDeviceConnection#requestWait}.
*/
public class UsbRequest {
@@ -53,10 +53,9 @@ public class UsbRequest {
* @param endpoint the endpoint to be used for this request.
* @return true if the request was successfully opened.
*/
- public boolean initialize(UsbEndpoint endpoint) {
+ public boolean initialize(UsbDeviceConnection connection, UsbEndpoint endpoint) {
mEndpoint = endpoint;
- return native_init(endpoint.getDevice(),
- endpoint.getAddress(), endpoint.getAttributes(),
+ return native_init(connection, endpoint.getAddress(), endpoint.getAttributes(),
endpoint.getMaxPacketSize(), endpoint.getInterval());
}
@@ -94,7 +93,7 @@ public class UsbRequest {
* This can be used in conjunction with {@link #setClientData}
* to associate another object with this request, which can be useful for
* maintaining state between calls to {@link #queue} and
- * {@link android.hardware.usb.UsbDevice#requestWait}
+ * {@link android.hardware.usb.UsbDeviceConnection#requestWait}
*
* @return the client data for the request
*/
@@ -107,7 +106,7 @@ public class UsbRequest {
* This can be used in conjunction with {@link #getClientData}
* to associate another object with this request, which can be useful for
* maintaining state between calls to {@link #queue} and
- * {@link android.hardware.usb.UsbDevice#requestWait}
+ * {@link android.hardware.usb.UsbDeviceConnection#requestWait}
*
* @param data the client data for the request
*/
@@ -121,7 +120,7 @@ public class UsbRequest {
* For IN endpoints, the endpoint will attempt to read the given number of bytes
* into the specified buffer.
* If the queueing operation is successful, we return true and the result will be
- * returned via {@link android.hardware.usb.UsbDevice#requestWait}
+ * returned via {@link android.hardware.usb.UsbDeviceConnection#requestWait}
*
* @param buffer the buffer containing the bytes to write, or location to store
* the results of a read
@@ -166,8 +165,8 @@ public class UsbRequest {
return native_cancel();
}
- private native boolean native_init(UsbDevice device, int ep_address, int ep_attributes,
- int ep_max_packet_size, int ep_interval);
+ private native boolean native_init(UsbDeviceConnection connection, int ep_address,
+ int ep_attributes, int ep_max_packet_size, int ep_interval);
private native void native_close();
private native boolean native_queue_array(byte[] buffer, int length, boolean out);
private native void native_dequeue_array(byte[] buffer, int length, boolean out);
diff --git a/core/jni/Android.mk b/core/jni/Android.mk
index 2ed938a..1c4dc29 100644
--- a/core/jni/Android.mk
+++ b/core/jni/Android.mk
@@ -124,6 +124,7 @@ LOCAL_SRC_FILES:= \
android_hardware_Camera.cpp \
android_hardware_SensorManager.cpp \
android_hardware_UsbDevice.cpp \
+ android_hardware_UsbDeviceConnection.cpp \
android_hardware_UsbRequest.cpp \
android_debug_JNITest.cpp \
android_util_FileObserver.cpp \
diff --git a/core/jni/AndroidRuntime.cpp b/core/jni/AndroidRuntime.cpp
index 878af3d..0e071a4 100644
--- a/core/jni/AndroidRuntime.cpp
+++ b/core/jni/AndroidRuntime.cpp
@@ -78,6 +78,7 @@ extern int register_android_opengl_jni_GLES20(JNIEnv* env);
extern int register_android_hardware_Camera(JNIEnv *env);
extern int register_android_hardware_SensorManager(JNIEnv *env);
extern int register_android_hardware_UsbDevice(JNIEnv *env);
+extern int register_android_hardware_UsbDeviceConnection(JNIEnv *env);
extern int register_android_hardware_UsbRequest(JNIEnv *env);
extern int register_android_media_AudioRecord(JNIEnv *env);
@@ -1274,6 +1275,7 @@ static const RegJNIRec gRegJNI[] = {
REG_JNI(register_android_hardware_Camera),
REG_JNI(register_android_hardware_SensorManager),
REG_JNI(register_android_hardware_UsbDevice),
+ REG_JNI(register_android_hardware_UsbDeviceConnection),
REG_JNI(register_android_hardware_UsbRequest),
REG_JNI(register_android_media_AudioRecord),
REG_JNI(register_android_media_AudioSystem),
diff --git a/core/jni/android_hardware_UsbDevice.cpp b/core/jni/android_hardware_UsbDevice.cpp
index b01820c..c2950ea 100644
--- a/core/jni/android_hardware_UsbDevice.cpp
+++ b/core/jni/android_hardware_UsbDevice.cpp
@@ -24,190 +24,8 @@
#include <usbhost/usbhost.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
using namespace android;
-static jfieldID field_context;
-
-struct usb_device* get_device_from_object(JNIEnv* env, jobject javaDevice)
-{
- return (struct usb_device*)env->GetIntField(javaDevice, field_context);
-}
-
-// in android_hardware_UsbEndpoint.cpp
-extern struct usb_endpoint* get_endpoint_from_object(JNIEnv* env, jobject javaEndpoint);
-
-static jboolean
-android_hardware_UsbDevice_open(JNIEnv *env, jobject thiz, jstring deviceName,
- jobject fileDescriptor)
-{
- int fd = getParcelFileDescriptorFD(env, fileDescriptor);
- // duplicate the file descriptor, since ParcelFileDescriptor will eventually close its copy
- fd = dup(fd);
- if (fd < 0)
- return false;
-
- const char *deviceNameStr = env->GetStringUTFChars(deviceName, NULL);
- struct usb_device* device = usb_device_new(deviceNameStr, fd);
- if (device) {
- env->SetIntField(thiz, field_context, (int)device);
- } else {
- LOGE("usb_device_open failed for %s", deviceNameStr);
- close(fd);
- }
-
- env->ReleaseStringUTFChars(deviceName, deviceNameStr);
- return (device != NULL);
-}
-
-static void
-android_hardware_UsbDevice_close(JNIEnv *env, jobject thiz)
-{
- LOGD("close\n");
- struct usb_device* device = get_device_from_object(env, thiz);
- if (device) {
- usb_device_close(device);
- env->SetIntField(thiz, field_context, 0);
- }
-}
-
-static jint
-android_hardware_UsbDevice_get_fd(JNIEnv *env, jobject thiz)
-{
- struct usb_device* device = get_device_from_object(env, thiz);
- if (!device) {
- LOGE("device is closed in native_get_fd");
- return -1;
- }
- return usb_device_get_fd(device);
-}
-
-static jboolean
-android_hardware_UsbDevice_claim_interface(JNIEnv *env, jobject thiz, int interfaceID, jboolean force)
-{
- struct usb_device* device = get_device_from_object(env, thiz);
- if (!device) {
- LOGE("device is closed in native_claim_interface");
- return -1;
- }
-
- int ret = usb_device_claim_interface(device, interfaceID);
- if (ret && force && errno == EBUSY) {
- // disconnect kernel driver and try again
- usb_device_connect_kernel_driver(device, interfaceID, false);
- ret = usb_device_claim_interface(device, interfaceID);
- }
- return ret == 0;
-}
-
-static jint
-android_hardware_UsbDevice_release_interface(JNIEnv *env, jobject thiz, int interfaceID)
-{
- struct usb_device* device = get_device_from_object(env, thiz);
- if (!device) {
- LOGE("device is closed in native_release_interface");
- return -1;
- }
- int ret = usb_device_release_interface(device, interfaceID);
- if (ret == 0) {
- // allow kernel to reconnect its driver
- usb_device_connect_kernel_driver(device, interfaceID, true);
- }
- return ret;
-}
-
-static jint
-android_hardware_UsbDevice_control_request(JNIEnv *env, jobject thiz,
- jint requestType, jint request, jint value, jint index,
- jbyteArray buffer, jint length, jint timeout)
-{
- struct usb_device* device = get_device_from_object(env, thiz);
- if (!device) {
- LOGE("device is closed in native_control_request");
- return -1;
- }
-
- jbyte* bufferBytes = NULL;
- if (buffer) {
- if (env->GetArrayLength(buffer) < length) {
- env->ThrowNew(env->FindClass("java/lang/ArrayIndexOutOfBoundsException"), NULL);
- return -1;
- }
- bufferBytes = env->GetByteArrayElements(buffer, 0);
- }
-
- jint result = usb_device_control_transfer(device, requestType, request,
- value, index, bufferBytes, length, timeout);
-
- if (bufferBytes)
- env->ReleaseByteArrayElements(buffer, bufferBytes, 0);
-
- return result;
-}
-
-static jint
-android_hardware_UsbDevice_bulk_request(JNIEnv *env, jobject thiz,
- jint endpoint, jbyteArray buffer, jint length, jint timeout)
-{
- struct usb_device* device = get_device_from_object(env, thiz);
- if (!device) {
- LOGE("device is closed in native_control_request");
- return -1;
- }
-
- jbyte* bufferBytes = NULL;
- if (buffer) {
- if (env->GetArrayLength(buffer) < length) {
- env->ThrowNew(env->FindClass("java/lang/ArrayIndexOutOfBoundsException"), NULL);
- return -1;
- }
- bufferBytes = env->GetByteArrayElements(buffer, 0);
- }
-
- jint result = usb_device_bulk_transfer(device, endpoint, bufferBytes, length, timeout);
-
- if (bufferBytes)
- env->ReleaseByteArrayElements(buffer, bufferBytes, 0);
-
- return result;
-}
-
-static jobject
-android_hardware_UsbDevice_request_wait(JNIEnv *env, jobject thiz)
-{
- struct usb_device* device = get_device_from_object(env, thiz);
- if (!device) {
- LOGE("device is closed in native_request_wait");
- return NULL;
- }
-
- struct usb_request* request = usb_request_wait(device);
- if (request)
- return (jobject)request->client_data;
- else
- return NULL;
-}
-
-static jstring
-android_hardware_UsbDevice_get_serial(JNIEnv *env, jobject thiz)
-{
- struct usb_device* device = get_device_from_object(env, thiz);
- if (!device) {
- LOGE("device is closed in native_request_wait");
- return NULL;
- }
- char* serial = usb_device_get_serial(device);
- if (!serial)
- return NULL;
- jstring result = env->NewStringUTF(serial);
- free(serial);
- return result;
-}
-
static jint
android_hardware_UsbDevice_get_device_id(JNIEnv *env, jobject clazz, jstring name)
{
@@ -227,21 +45,6 @@ android_hardware_UsbDevice_get_device_name(JNIEnv *env, jobject clazz, jint id)
}
static JNINativeMethod method_table[] = {
- {"native_open", "(Ljava/lang/String;Ljava/io/FileDescriptor;)Z",
- (void *)android_hardware_UsbDevice_open},
- {"native_close", "()V", (void *)android_hardware_UsbDevice_close},
- {"native_get_fd", "()I", (void *)android_hardware_UsbDevice_get_fd},
- {"native_claim_interface", "(IZ)Z",(void *)android_hardware_UsbDevice_claim_interface},
- {"native_release_interface","(I)Z", (void *)android_hardware_UsbDevice_release_interface},
- {"native_control_request", "(IIII[BII)I",
- (void *)android_hardware_UsbDevice_control_request},
- {"native_bulk_request", "(I[BII)I",
- (void *)android_hardware_UsbDevice_bulk_request},
- {"native_request_wait", "()Landroid/hardware/usb/UsbRequest;",
- (void *)android_hardware_UsbDevice_request_wait},
- { "native_get_serial", "()Ljava/lang/String;",
- (void*)android_hardware_UsbDevice_get_serial },
-
// static methods
{ "native_get_device_id", "(Ljava/lang/String;)I",
(void*)android_hardware_UsbDevice_get_device_id },
@@ -256,11 +59,6 @@ int register_android_hardware_UsbDevice(JNIEnv *env)
LOGE("Can't find android/hardware/usb/UsbDevice");
return -1;
}
- field_context = env->GetFieldID(clazz, "mNativeContext", "I");
- if (field_context == NULL) {
- LOGE("Can't find UsbDevice.mNativeContext");
- return -1;
- }
return AndroidRuntime::registerNativeMethods(env, "android/hardware/usb/UsbDevice",
method_table, NELEM(method_table));
diff --git a/core/jni/android_hardware_UsbDeviceConnection.cpp b/core/jni/android_hardware_UsbDeviceConnection.cpp
new file mode 100644
index 0000000..ec36a38
--- /dev/null
+++ b/core/jni/android_hardware_UsbDeviceConnection.cpp
@@ -0,0 +1,242 @@
+/*
+ * Copyright (C) 2011 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.
+ */
+
+#define LOG_TAG "UsbDeviceConnectionJNI"
+
+#include "utils/Log.h"
+
+#include "jni.h"
+#include "JNIHelp.h"
+#include "android_runtime/AndroidRuntime.h"
+
+#include <usbhost/usbhost.h>
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+using namespace android;
+
+static jfieldID field_context;
+
+struct usb_device* get_device_from_object(JNIEnv* env, jobject connection)
+{
+ return (struct usb_device*)env->GetIntField(connection, field_context);
+}
+
+static jboolean
+android_hardware_UsbDeviceConnection_open(JNIEnv *env, jobject thiz, jstring deviceName,
+ jobject fileDescriptor)
+{
+ int fd = getParcelFileDescriptorFD(env, fileDescriptor);
+ // duplicate the file descriptor, since ParcelFileDescriptor will eventually close its copy
+ fd = dup(fd);
+ if (fd < 0)
+ return false;
+
+ const char *deviceNameStr = env->GetStringUTFChars(deviceName, NULL);
+ struct usb_device* device = usb_device_new(deviceNameStr, fd);
+ if (device) {
+ env->SetIntField(thiz, field_context, (int)device);
+ } else {
+ LOGE("usb_device_open failed for %s", deviceNameStr);
+ close(fd);
+ }
+
+ env->ReleaseStringUTFChars(deviceName, deviceNameStr);
+ return (device != NULL);
+}
+
+static void
+android_hardware_UsbDeviceConnection_close(JNIEnv *env, jobject thiz)
+{
+ LOGD("close\n");
+ struct usb_device* device = get_device_from_object(env, thiz);
+ if (device) {
+ usb_device_close(device);
+ env->SetIntField(thiz, field_context, 0);
+ }
+}
+
+static jint
+android_hardware_UsbDeviceConnection_get_fd(JNIEnv *env, jobject thiz)
+{
+ struct usb_device* device = get_device_from_object(env, thiz);
+ if (!device) {
+ LOGE("device is closed in native_get_fd");
+ return -1;
+ }
+ return usb_device_get_fd(device);
+}
+
+static jboolean
+android_hardware_UsbDeviceConnection_claim_interface(JNIEnv *env, jobject thiz,
+ int interfaceID, jboolean force)
+{
+ struct usb_device* device = get_device_from_object(env, thiz);
+ if (!device) {
+ LOGE("device is closed in native_claim_interface");
+ return -1;
+ }
+
+ int ret = usb_device_claim_interface(device, interfaceID);
+ if (ret && force && errno == EBUSY) {
+ // disconnect kernel driver and try again
+ usb_device_connect_kernel_driver(device, interfaceID, false);
+ ret = usb_device_claim_interface(device, interfaceID);
+ }
+ return ret == 0;
+}
+
+static jint
+android_hardware_UsbDeviceConnection_release_interface(JNIEnv *env, jobject thiz, int interfaceID)
+{
+ struct usb_device* device = get_device_from_object(env, thiz);
+ if (!device) {
+ LOGE("device is closed in native_release_interface");
+ return -1;
+ }
+ int ret = usb_device_release_interface(device, interfaceID);
+ if (ret == 0) {
+ // allow kernel to reconnect its driver
+ usb_device_connect_kernel_driver(device, interfaceID, true);
+ }
+ return ret;
+}
+
+static jint
+android_hardware_UsbDeviceConnection_control_request(JNIEnv *env, jobject thiz,
+ jint requestType, jint request, jint value, jint index,
+ jbyteArray buffer, jint length, jint timeout)
+{
+ struct usb_device* device = get_device_from_object(env, thiz);
+ if (!device) {
+ LOGE("device is closed in native_control_request");
+ return -1;
+ }
+
+ jbyte* bufferBytes = NULL;
+ if (buffer) {
+ if (env->GetArrayLength(buffer) < length) {
+ env->ThrowNew(env->FindClass("java/lang/ArrayIndexOutOfBoundsException"), NULL);
+ return -1;
+ }
+ bufferBytes = env->GetByteArrayElements(buffer, 0);
+ }
+
+ jint result = usb_device_control_transfer(device, requestType, request,
+ value, index, bufferBytes, length, timeout);
+
+ if (bufferBytes)
+ env->ReleaseByteArrayElements(buffer, bufferBytes, 0);
+
+ return result;
+}
+
+static jint
+android_hardware_UsbDeviceConnection_bulk_request(JNIEnv *env, jobject thiz,
+ jint endpoint, jbyteArray buffer, jint length, jint timeout)
+{
+ struct usb_device* device = get_device_from_object(env, thiz);
+ if (!device) {
+ LOGE("device is closed in native_control_request");
+ return -1;
+ }
+
+ jbyte* bufferBytes = NULL;
+ if (buffer) {
+ if (env->GetArrayLength(buffer) < length) {
+ env->ThrowNew(env->FindClass("java/lang/ArrayIndexOutOfBoundsException"), NULL);
+ return -1;
+ }
+ bufferBytes = env->GetByteArrayElements(buffer, 0);
+ }
+
+ jint result = usb_device_bulk_transfer(device, endpoint, bufferBytes, length, timeout);
+
+ if (bufferBytes)
+ env->ReleaseByteArrayElements(buffer, bufferBytes, 0);
+
+ return result;
+}
+
+static jobject
+android_hardware_UsbDeviceConnection_request_wait(JNIEnv *env, jobject thiz)
+{
+ struct usb_device* device = get_device_from_object(env, thiz);
+ if (!device) {
+ LOGE("device is closed in native_request_wait");
+ return NULL;
+ }
+
+ struct usb_request* request = usb_request_wait(device);
+ if (request)
+ return (jobject)request->client_data;
+ else
+ return NULL;
+}
+
+static jstring
+android_hardware_UsbDeviceConnection_get_serial(JNIEnv *env, jobject thiz)
+{
+ struct usb_device* device = get_device_from_object(env, thiz);
+ if (!device) {
+ LOGE("device is closed in native_request_wait");
+ return NULL;
+ }
+ char* serial = usb_device_get_serial(device);
+ if (!serial)
+ return NULL;
+ jstring result = env->NewStringUTF(serial);
+ free(serial);
+ return result;
+}
+
+static JNINativeMethod method_table[] = {
+ {"native_open", "(Ljava/lang/String;Ljava/io/FileDescriptor;)Z",
+ (void *)android_hardware_UsbDeviceConnection_open},
+ {"native_close", "()V", (void *)android_hardware_UsbDeviceConnection_close},
+ {"native_get_fd", "()I", (void *)android_hardware_UsbDeviceConnection_get_fd},
+ {"native_claim_interface", "(IZ)Z",(void *)android_hardware_UsbDeviceConnection_claim_interface},
+ {"native_release_interface","(I)Z", (void *)android_hardware_UsbDeviceConnection_release_interface},
+ {"native_control_request", "(IIII[BII)I",
+ (void *)android_hardware_UsbDeviceConnection_control_request},
+ {"native_bulk_request", "(I[BII)I",
+ (void *)android_hardware_UsbDeviceConnection_bulk_request},
+ {"native_request_wait", "()Landroid/hardware/usb/UsbRequest;",
+ (void *)android_hardware_UsbDeviceConnection_request_wait},
+ { "native_get_serial", "()Ljava/lang/String;",
+ (void*)android_hardware_UsbDeviceConnection_get_serial },
+};
+
+int register_android_hardware_UsbDeviceConnection(JNIEnv *env)
+{
+ jclass clazz = env->FindClass("android/hardware/usb/UsbDeviceConnection");
+ if (clazz == NULL) {
+ LOGE("Can't find android/hardware/usb/UsbDeviceConnection");
+ return -1;
+ }
+ field_context = env->GetFieldID(clazz, "mNativeContext", "I");
+ if (field_context == NULL) {
+ LOGE("Can't find UsbDeviceConnection.mNativeContext");
+ return -1;
+ }
+
+ return AndroidRuntime::registerNativeMethods(env, "android/hardware/usb/UsbDeviceConnection",
+ method_table, NELEM(method_table));
+}
+
diff --git a/core/jni/android_hardware_UsbRequest.cpp b/core/jni/android_hardware_UsbRequest.cpp
index b497adb..6bd67d1 100644
--- a/core/jni/android_hardware_UsbRequest.cpp
+++ b/core/jni/android_hardware_UsbRequest.cpp
@@ -35,8 +35,8 @@ struct usb_request* get_request_from_object(JNIEnv* env, jobject java_request)
return (struct usb_request*)env->GetIntField(java_request, field_context);
}
-// in android_hardware_UsbDevice.cpp
-extern struct usb_device* get_device_from_object(JNIEnv* env, jobject java_device);
+// in android_hardware_UsbDeviceConnection.cpp
+extern struct usb_device* get_device_from_object(JNIEnv* env, jobject connection);
static jboolean
android_hardware_UsbRequest_init(JNIEnv *env, jobject thiz, jobject java_device,
@@ -107,7 +107,7 @@ android_hardware_UsbRequest_queue_array(JNIEnv *env, jobject thiz,
}
return false;
} else {
- // save a reference to ourselves so UsbDevice.waitRequest() can find us
+ // save a reference to ourselves so UsbDeviceConnection.waitRequest() can find us
request->client_data = (void *)env->NewGlobalRef(thiz);
return true;
}
@@ -155,7 +155,7 @@ android_hardware_UsbRequest_queue_direct(JNIEnv *env, jobject thiz,
request->buffer = NULL;
return false;
} else {
- // save a reference to ourselves so UsbDevice.waitRequest() can find us
+ // save a reference to ourselves so UsbDeviceConnection.waitRequest() can find us
// we also need this to make sure our native buffer is not deallocated
// while IO is active
request->client_data = (void *)env->NewGlobalRef(thiz);
@@ -187,7 +187,7 @@ android_hardware_UsbRequest_cancel(JNIEnv *env, jobject thiz)
}
static JNINativeMethod method_table[] = {
- {"native_init", "(Landroid/hardware/usb/UsbDevice;IIII)Z",
+ {"native_init", "(Landroid/hardware/usb/UsbDeviceConnection;IIII)Z",
(void *)android_hardware_UsbRequest_init},
{"native_close", "()V", (void *)android_hardware_UsbRequest_close},
{"native_queue_array", "([BIZ)Z", (void *)android_hardware_UsbRequest_queue_array},
diff --git a/media/java/android/mtp/MtpClient.java b/media/java/android/mtp/MtpClient.java
index d25dcb9..3859caf 100644
--- a/media/java/android/mtp/MtpClient.java
+++ b/media/java/android/mtp/MtpClient.java
@@ -23,6 +23,7 @@ import android.content.Intent;
import android.content.IntentFilter;
import android.hardware.usb.UsbConstants;
import android.hardware.usb.UsbDevice;
+import android.hardware.usb.UsbDeviceConnection;
import android.hardware.usb.UsbInterface;
import android.hardware.usb.UsbManager;
import android.os.ParcelFileDescriptor;
@@ -168,10 +169,13 @@ public class MtpClient {
if (!mUsbManager.hasPermission(usbDevice)) {
mUsbManager.requestPermission(usbDevice, mPermissionIntent);
} else {
- MtpDevice mtpDevice = new MtpDevice(usbDevice);
- if (mtpDevice.open(mUsbManager)) {
- mDevices.put(usbDevice.getDeviceName(), mtpDevice);
- return mtpDevice;
+ UsbDeviceConnection connection = mUsbManager.openDevice(usbDevice);
+ if (connection != null) {
+ MtpDevice mtpDevice = new MtpDevice(usbDevice);
+ if (mtpDevice.open(connection)) {
+ mDevices.put(usbDevice.getDeviceName(), mtpDevice);
+ return mtpDevice;
+ }
}
}
}
diff --git a/media/java/android/mtp/MtpDevice.java b/media/java/android/mtp/MtpDevice.java
index 22961d7f..db2cebd 100644
--- a/media/java/android/mtp/MtpDevice.java
+++ b/media/java/android/mtp/MtpDevice.java
@@ -17,7 +17,7 @@
package android.mtp;
import android.hardware.usb.UsbDevice;
-import android.hardware.usb.UsbManager;
+import android.hardware.usb.UsbDeviceConnection;
import android.os.ParcelFileDescriptor;
import android.util.Log;
@@ -44,17 +44,20 @@ public final class MtpDevice {
}
/**
- * Opens the MTP or PTP device and return an {@link android.mtp.MtpDevice} for it.
+ * Opens the MTP device. Once the device is open it takes ownership of the
+ * {@link android.hardware.usb.UsbDeviceConnection}.
+ * The connection will be closed when you call {@link #close()}
+ * The connection will also be closed if this method fails.
*
- * @param manager reference to {@link android.hardware.usb.UsbManager}
+ * @param connection an open {@link android.hardware.usb.UsbDeviceConnection} for the device
* @return true if the device was successfully opened.
*/
- public boolean open(UsbManager manager) {
- if (manager.openDevice(mDevice)) {
- return native_open(mDevice.getDeviceName(), mDevice.getFileDescriptor());
- } else {
- return false;
+ public boolean open(UsbDeviceConnection connection) {
+ boolean result = native_open(mDevice.getDeviceName(), connection.getFileDescriptor());
+ if (!result) {
+ connection.close();
}
+ return result;
}
/**
generated by cgit v1.1 at 2025-03-15 00:27:30 +0000