Merge "Complete the Cas System request/release/update implementation in TRM"... (208c1d32) · Commits · e / os / android_frameworks_base

media/java/android/media/MediaCas.java

+10 −10

Original line number	Diff line number	Diff line
		@@ -388,7 +388,7 @@ public final class MediaCas implements AutoCloseable {
		@Override
		public void onReclaimResources() {
		synchronized (mSessionMap) {
		mSessionMap.forEach((casSession, sessionResourceId) -> casSession.close());
		mSessionMap.forEach((casSession, sessionResourceHandle) -> casSession.close());
		}
		mEventHandler.sendMessage(mEventHandler.obtainMessage(
		EventHandler.MSG_CAS_RESOURCE_LOST));
		@@ -868,7 +868,7 @@ public final class MediaCas implements AutoCloseable {
		}
		}

		private int getSessionResourceId() throws MediaCasException {
		private int getSessionResourceHandle() throws MediaCasException {
		validateInternalStates();

		int[] sessionResourceHandle = new int[1];
		@@ -884,11 +884,11 @@ public final class MediaCas implements AutoCloseable {
		return sessionResourceHandle[0];
		}

		private void addSessionToResourceMap(Session session, int sessionResourceId) {
		private void addSessionToResourceMap(Session session, int sessionResourceHandle) {

		if (sessionResourceId != -1) {
		if (sessionResourceHandle != TunerResourceManager.INVALID_RESOURCE_HANDLE) {
		synchronized (mSessionMap) {
		mSessionMap.put(session, sessionResourceId);
		mSessionMap.put(session, sessionResourceHandle);
		}
		}
		}
		@@ -918,13 +918,13 @@ public final class MediaCas implements AutoCloseable {
		* @throws MediaCasStateException for CAS-specific state exceptions.
		*/
		public Session openSession() throws MediaCasException {
		int sessionResourceId = getSessionResourceId();
		int sessionResourceHandle = getSessionResourceHandle();

		try {
		OpenSessionCallback cb = new OpenSessionCallback();
		mICas.openSession(cb);
		MediaCasException.throwExceptionIfNeeded(cb.mStatus);
		addSessionToResourceMap(cb.mSession, sessionResourceId);
		addSessionToResourceMap(cb.mSession, sessionResourceHandle);
		return cb.mSession;
		} catch (RemoteException e) {
		cleanupAndRethrowIllegalState();
		@@ -952,7 +952,7 @@ public final class MediaCas implements AutoCloseable {
		@Nullable
		public Session openSession(@SessionUsage int sessionUsage, @ScramblingMode int scramblingMode)
		throws MediaCasException {
		int sessionResourceId = getSessionResourceId();
		int sessionResourceHandle = getSessionResourceHandle();

		if (mICasV12 == null) {
		Log.d(TAG, "Open Session with scrambling mode is only supported by cas@1.2+ interface");
		@@ -963,7 +963,7 @@ public final class MediaCas implements AutoCloseable {
		OpenSession_1_2_Callback cb = new OpenSession_1_2_Callback();
		mICasV12.openSession_1_2(sessionUsage, scramblingMode, cb);
		MediaCasException.throwExceptionIfNeeded(cb.mStatus);
		addSessionToResourceMap(cb.mSession, sessionResourceId);
		addSessionToResourceMap(cb.mSession, sessionResourceHandle);
		return cb.mSession;
		} catch (RemoteException e) {
		cleanupAndRethrowIllegalState();

media/java/android/media/tv/tunerresourcemanager/ITunerResourceManager.aidl

+5 −5

Original line number	Diff line number	Diff line
		@@ -218,11 +218,11 @@ interface ITunerResourceManager {
		* <p><strong>Note:</strong> {@link #updateCasInfo(int, int)} must be called before this request.
		*
		* @param request {@link CasSessionRequest} information of the current request.
		* @param sessionResourceId a one-element array to return the granted cas session id.
		* @param casSessionHandle a one-element array to return the granted cas session handle.
		*
		* @return true if there is CAS session granted.
		*/
		boolean requestCasSession(in CasSessionRequest request, out int[] sessionResourceId);
		boolean requestCasSession(in CasSessionRequest request, out int[] casSessionHandle);

		/*
		* This API is used by the Tuner framework to request an available Lnb from the TunerHAL.
		@@ -276,7 +276,7 @@ interface ITunerResourceManager {
		*
		* <p>Client must call this whenever it releases a descrambler.
		*
		* @param demuxHandle the handle of the released Tuner Descrambler.
		* @param descramblerHandle the handle of the released Tuner Descrambler.
		* @param clientId the id of the client that is releasing the descrambler.
		*/
		void releaseDescrambler(in int descramblerHandle, int clientId);
		@@ -288,10 +288,10 @@ interface ITunerResourceManager {
		*
		* <p><strong>Note:</strong> {@link #updateCasInfo(int, int)} must be called before this release.
		*
		* @param sessionResourceId the id of the released CAS session.
		* @param casSessionHandle the handle of the released CAS session.
		* @param clientId the id of the client that is releasing the cas session.
		*/
		void releaseCasSession(in int sessionResourceId, int clientId);
		void releaseCasSession(in int casSessionHandle, int clientId);

		/*
		* Notifies the TRM that the Lnb with the given handle was released.

media/java/android/media/tv/tunerresourcemanager/TunerResourceManager.java

+7 −8

Original line number	Diff line number	Diff line
		@@ -362,17 +362,16 @@ public class TunerResourceManager {
		* request.
		*
		* @param request {@link CasSessionRequest} information of the current request.
		* @param sessionResourceId a one-element array to return the granted cas session id.
		* If no CAS granted, this will return
		* {@link #INVALID_CAS_SESSION_RESOURCE_ID}.
		* @param casSessionHandle a one-element array to return the granted cas session handel.
		* If no CAS granted, this will return {@link #INVALID_RESOURCE_HANDLE}.
		*
		* @return true if there is CAS session granted.
		*/
		public boolean requestCasSession(@NonNull CasSessionRequest request,
		@NonNull int[] sessionResourceId) {
		@NonNull int[] casSessionHandle) {
		boolean result = false;
		try {
		result = mService.requestCasSession(request, sessionResourceId);
		result = mService.requestCasSession(request, casSessionHandle);
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}
		@@ -471,12 +470,12 @@ public class TunerResourceManager {
		* <p><strong>Note:</strong> {@link #updateCasInfo(int, int)} must be called before this
		* release.
		*
		* @param sessionResourceId the id of the released CAS session.
		* @param casSessionHandle the handle of the released CAS session.
		* @param clientId the id of the client that is releasing the cas session.
		*/
		public void releaseCasSession(int sessionResourceId, int clientId) {
		public void releaseCasSession(int casSessionHandle, int clientId) {
		try {
		mService.releaseCasSession(sessionResourceId, clientId);
		mService.releaseCasSession(casSessionHandle, clientId);
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}

services/core/java/com/android/server/tv/tunerresourcemanager/CasResource.java

0 → 100644

+152 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright 2020 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.tv.tunerresourcemanager;

		import java.util.HashMap;
		import java.util.Map;
		import java.util.Set;

		/**
		* A Cas resource object used by the Tuner Resource Manager to record the cas
		* information.
		*
		* @hide
		*/
		public final class CasResource {

		private final int mSystemId;

		private int mMaxSessionNum;

		private int mAvailableSessionNum;

		/**
		* The owner clients' ids when part of the Cas is occupied.
		*/
		private Map<Integer, Integer> mOwnerClientIdsToSessionNum = new HashMap<>();

		private CasResource(Builder builder) {
		this.mSystemId = builder.mSystemId;
		this.mMaxSessionNum = builder.mMaxSessionNum;
		this.mAvailableSessionNum = builder.mMaxSessionNum;
		}

		public int getSystemId() {
		return mSystemId;
		}

		public int getMaxSessionNum() {
		return mMaxSessionNum;
		}

		public int getUsedSessionNum() {
		return (mMaxSessionNum - mAvailableSessionNum);
		}

		public boolean isFullyUsed() {
		return mAvailableSessionNum == 0;
		}

		/**
		* Update max session number.
		*
		* @param maxSessionNum the new max session num.
		*/
		public void updateMaxSessionNum(int maxSessionNum) {
		mAvailableSessionNum = Math.max(
		0, mAvailableSessionNum + (maxSessionNum - mMaxSessionNum));
		mMaxSessionNum = maxSessionNum;
		}

		/**
		* Set an owner for the cas
		*
		* @param ownerId the client id of the owner.
		*/
		public void setOwner(int ownerId) {
		int sessionNum = mOwnerClientIdsToSessionNum.get(ownerId) == null
		? 1 : (mOwnerClientIdsToSessionNum.get(ownerId) + 1);
		mOwnerClientIdsToSessionNum.put(ownerId, sessionNum);
		mAvailableSessionNum--;
		}

		/**
		* Remove an owner of the Cas.
		*
		* @param ownerId the removing client id of the owner.
		*/
		public void removeOwner(int ownerId) {
		mAvailableSessionNum += mOwnerClientIdsToSessionNum.get(ownerId);
		mOwnerClientIdsToSessionNum.remove(ownerId);
		}

		public Set<Integer> getOwnerClientIds() {
		return mOwnerClientIdsToSessionNum.keySet();
		}

		@Override
		public String toString() {
		return "CasResource[systemId=" + this.mSystemId
		+ ", isFullyUsed=" + (this.mAvailableSessionNum == 0)
		+ ", maxSessionNum=" + this.mMaxSessionNum
		+ ", ownerClients=" + ownersMapToString() + "]";
		}

		/**
		* Builder class for {@link CasResource}.
		*/
		public static class Builder {

		private int mSystemId;
		private int mMaxSessionNum;

		Builder(int systemId) {
		this.mSystemId = systemId;
		}

		/**
		* Builder for {@link CasResource}.
		*
		* @param maxSessionNum the max session num the current Cas has.
		*/
		public Builder maxSessionNum(int maxSessionNum) {
		this.mMaxSessionNum = maxSessionNum;
		return this;
		}

		/**
		* Build a {@link CasResource}.
		*
		* @return {@link CasResource}.
		*/
		public CasResource build() {
		CasResource cas = new CasResource(this);
		return cas;
		}
		}

		private String ownersMapToString() {
		StringBuilder string = new StringBuilder("{");
		for (int clienId : mOwnerClientIdsToSessionNum.keySet()) {
		string.append(" clientId=")
		.append(clienId)
		.append(", owns session num=")
		.append(mOwnerClientIdsToSessionNum.get(clienId))
		.append(",");
		}
		return string.append("}").toString();
		}
		}

services/core/java/com/android/server/tv/tunerresourcemanager/ClientProfile.java

+27 −1

Original line number	Diff line number	Diff line
		@@ -27,6 +27,7 @@ import java.util.Set;
		public final class ClientProfile {

		public static final int INVALID_GROUP_ID = -1;
		public static final int INVALID_RESOURCE_ID = -1;

		/**
		* Client id sent to the client when registering with
		@@ -56,7 +57,6 @@ public final class ClientProfile {
		* also lose their resources.
		*/
		private int mGroupId = INVALID_GROUP_ID;

		/**
		* Optional nice value for TRM to reduce client’s priority.
		*/
		@@ -72,6 +72,11 @@ public final class ClientProfile {
		*/
		private Set<Integer> mUsingLnbIds = new HashSet<>();

		/**
		* List of the Cas system ids that are used by the current client.
		*/
		private int mUsingCasSystemId = INVALID_RESOURCE_ID;

		/**
		* Optional arbitrary priority value given by the client.
		*
		@@ -171,12 +176,33 @@ public final class ClientProfile {
		mUsingLnbIds.remove(lnbId);
		}

		/**
		* Set when the client starts to use a Cas system.
		*
		* @param casSystemId cas being used.
		*/
		public void useCas(int casSystemId) {
		mUsingCasSystemId = casSystemId;
		}

		public int getInUseCasSystemId() {
		return mUsingCasSystemId;
		}

		/**
		* Called when the client released a Cas System.
		*/
		public void releaseCas() {
		mUsingCasSystemId = INVALID_RESOURCE_ID;
		}

		/**
		* Called to reclaim all the resources being used by the current client.
		*/
		public void reclaimAllResources() {
		mUsingFrontendIds.clear();
		mUsingLnbIds.clear();
		mUsingCasSystemId = INVALID_RESOURCE_ID;
		}

		@Override