diff options
Diffstat (limited to 'src/com/android/tv/tuner/UsbTunerHal.java')
-rw-r--r-- | src/com/android/tv/tuner/UsbTunerHal.java | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/src/com/android/tv/tuner/UsbTunerHal.java b/src/com/android/tv/tuner/UsbTunerHal.java deleted file mode 100644 index 22e35ea1..00000000 --- a/src/com/android/tv/tuner/UsbTunerHal.java +++ /dev/null @@ -1,174 +0,0 @@ -/* - * Copyright (C) 2015 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.tv.tuner; - -import android.content.Context; -import android.os.ParcelFileDescriptor; -import android.util.Log; -import com.android.tv.tuner.DvbDeviceAccessor.DvbDeviceInfoWrapper; - -import java.util.List; -import java.util.SortedSet; -import java.util.TreeSet; - -/** - * A class to handle a hardware USB tuner device. - */ -public class UsbTunerHal extends TunerHal { - - private static final Object sLock = new Object(); - // @GuardedBy("sLock") - private static final SortedSet<DvbDeviceInfoWrapper> sUsedDvbDevices = new TreeSet<>(); - - private final DvbDeviceAccessor mDvbDeviceAccessor; - private DvbDeviceInfoWrapper mDvbDeviceInfo; - - protected UsbTunerHal(Context context) { - super(context); - mDvbDeviceAccessor = new DvbDeviceAccessor(context); - } - - @Override - protected boolean openFirstAvailable() { - List<DvbDeviceInfoWrapper> deviceInfoList = mDvbDeviceAccessor.getDvbDeviceList(); - if (deviceInfoList == null || deviceInfoList.isEmpty()) { - Log.e(TAG, "There's no dvb device attached"); - return false; - } - synchronized (sLock) { - for (DvbDeviceInfoWrapper deviceInfo : deviceInfoList) { - if (!sUsedDvbDevices.contains(deviceInfo)) { - if (DEBUG) Log.d(TAG, "Available device info: " + deviceInfo); - mDvbDeviceInfo = deviceInfo; - sUsedDvbDevices.add(deviceInfo); - return true; - } - } - } - Log.e(TAG, "There's no available dvb devices"); - return false; - } - - /** - * Acquires the tuner device. The requested device will be locked to the current instance if - * it's not acquired by others. - * - * @param deviceInfo a tuner device to open - * @return {@code true} if the operation was successful, {@code false} otherwise - */ - protected boolean open(DvbDeviceInfoWrapper deviceInfo) { - if (deviceInfo == null) { - Log.e(TAG, "Device info should not be null"); - return false; - } - if (mDvbDeviceInfo != null) { - Log.e(TAG, "Already acquired"); - return false; - } - List<DvbDeviceInfoWrapper> deviceInfoList = mDvbDeviceAccessor.getDvbDeviceList(); - if (deviceInfoList == null || deviceInfoList.isEmpty()) { - Log.e(TAG, "There's no dvb device attached"); - return false; - } - for (DvbDeviceInfoWrapper deviceInfoWrapper : deviceInfoList) { - if (deviceInfoWrapper.compareTo(deviceInfo) == 0) { - synchronized (sLock) { - if (sUsedDvbDevices.contains(deviceInfo)) { - Log.e(TAG, deviceInfo + " is already taken"); - return false; - } - sUsedDvbDevices.add(deviceInfo); - } - if (DEBUG) Log.d(TAG, "Available device info: " + deviceInfo); - mDvbDeviceInfo = deviceInfo; - return true; - } - } - Log.e(TAG, "There's no such dvb device attached"); - return false; - } - - @Override - public void close() { - if (mDvbDeviceInfo != null) { - if (isStreaming()) { - stopTune(); - } - nativeFinalize(mDvbDeviceInfo.getId()); - synchronized (sLock) { - sUsedDvbDevices.remove(mDvbDeviceInfo); - } - mDvbDeviceInfo = null; - } - } - - @Override - protected boolean isDeviceOpen() { - return (mDvbDeviceInfo != null); - } - - @Override - protected long getDeviceId() { - if (mDvbDeviceInfo != null) { - return mDvbDeviceInfo.getId(); - } - return -1; - } - - @Override - protected int openDvbFrontEndFd() { - if (mDvbDeviceInfo != null) { - ParcelFileDescriptor descriptor = mDvbDeviceAccessor.openDvbDevice( - mDvbDeviceInfo, DvbDeviceAccessor.DVB_DEVICE_FRONTEND); - if (descriptor != null) { - return descriptor.detachFd(); - } - } - return -1; - } - - @Override - protected int openDvbDemuxFd() { - if (mDvbDeviceInfo != null) { - ParcelFileDescriptor descriptor = mDvbDeviceAccessor.openDvbDevice( - mDvbDeviceInfo, DvbDeviceAccessor.DVB_DEVICE_DEMUX); - if (descriptor != null) { - return descriptor.detachFd(); - } - } - return -1; - } - - @Override - protected int openDvbDvrFd() { - if (mDvbDeviceInfo != null) { - ParcelFileDescriptor descriptor = mDvbDeviceAccessor.openDvbDevice( - mDvbDeviceInfo, DvbDeviceAccessor.DVB_DEVICE_DVR); - if (descriptor != null) { - return descriptor.detachFd(); - } - } - return -1; - } - - /** - * Gets the number of USB tuner devices currently present. - */ - public static int getNumberOfDevices(Context context) { - return (new DvbDeviceAccessor(context)).getNumOfDvbDevices(); - } -} |