Merge changes from topic "audio_source_issues"

* changes:
  AudioPolicyManager: keep track of activity for HW Audio Patches
  audiopolicy: Primary Output runtime management
  audio policy: audio source automatic re-connection
  AudioPolicy: remove devices while Sw bridge established
diff --git a/services/audiopolicy/common/managerdefinitions/include/ClientDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/ClientDescriptor.h
index 923310c..ce97748 100644
--- a/services/audiopolicy/common/managerdefinitions/include/ClientDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/ClientDescriptor.h
@@ -195,10 +195,18 @@
 
     ~SourceClientDescriptor() override = default;
 
+    void connect(audio_patch_handle_t patchHandle, const sp<DeviceDescriptor>& sinkDevice) {
+        mPatchHandle = patchHandle;
+        mSinkDevice = sinkDevice;
+    }
+    void disconnect() {
+        mPatchHandle = AUDIO_PATCH_HANDLE_NONE;
+        mSinkDevice = nullptr;
+    }
+    bool isConnected() const { return mPatchHandle != AUDIO_PATCH_HANDLE_NONE; }
     audio_patch_handle_t getPatchHandle() const { return mPatchHandle; }
-    void setPatchHandle(audio_patch_handle_t patchHandle) { mPatchHandle = patchHandle; }
-
     sp<DeviceDescriptor> srcDevice() const { return mSrcDevice; }
+    sp<DeviceDescriptor> sinkDevice() const { return mSinkDevice; }
     wp<SwAudioOutputDescriptor> swOutput() const { return mSwOutput; }
     void setSwOutput(const sp<SwAudioOutputDescriptor>& swOutput);
     wp<HwAudioOutputDescriptor> hwOutput() const { return mHwOutput; }
@@ -210,6 +218,7 @@
  private:
     audio_patch_handle_t mPatchHandle = AUDIO_PATCH_HANDLE_NONE;
     const sp<DeviceDescriptor> mSrcDevice;
+    sp<DeviceDescriptor> mSinkDevice;
     wp<SwAudioOutputDescriptor> mSwOutput;
     wp<HwAudioOutputDescriptor> mHwOutput;
 };
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index beaa979..a192083 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -247,6 +247,7 @@
                     if ((state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) ||
                             (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) &&
                                 (desc->mDirectOpenCount == 0))) {
+                        clearAudioSourcesForOutput(output);
                         closeOutput(output);
                     }
                 }
@@ -357,7 +358,11 @@
             DeviceVector newDevices = getNewOutputDevices(mPrimaryOutput, false /*fromCache*/);
             updateCallRouting(newDevices);
         }
-
+        // Reconnect Audio Source
+        for (const auto &strategy : mEngine->getOrderedProductStrategies()) {
+            auto attributes = mEngine->getAllAttributesForProductStrategy(strategy).front();
+            checkAudioSourceForAttributes(attributes);
+        }
         if (state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) {
             cleanUpForDevice(device);
         }
@@ -442,7 +447,7 @@
     // Case 1: A2DP active device switches from primary to primary
     // module
     // Case 2: A2DP device config changes on primary module.
-    if (audio_is_a2dp_out_device(device)) {
+    if (audio_is_a2dp_out_device(device) && hasPrimaryOutput()) {
         sp<HwModule> module = mHwModules.getModuleForDeviceType(device, encodedFormat);
         audio_module_handle_t primaryHandle = mPrimaryOutput->getModuleHandle();
         if (availablePrimaryOutputDevices().contains(devDesc) &&
@@ -536,11 +541,7 @@
     ALOGV("updateCallRouting device rxDevice %s txDevice %s",
           rxDevices.itemAt(0)->toString().c_str(), txSourceDevice->toString().c_str());
 
-    // release existing RX patch if any
-    if (mCallRxPatch != 0) {
-        releaseAudioPatchInternal(mCallRxPatch->getHandle());
-        mCallRxPatch.clear();
-    }
+    disconnectTelephonyRxAudioSource();
     // release TX patch if any
     if (mCallTxPatch != 0) {
         releaseAudioPatchInternal(mCallTxPatch->getHandle());
@@ -588,8 +589,7 @@
     if (!createRxPatch) {
         muteWaitMs = setOutputDevices(mPrimaryOutput, rxDevices, true, delayMs);
     } else { // create RX path audio patch
-        mCallRxPatch = createTelephonyPatch(true /*isRx*/, rxDevices.itemAt(0), delayMs);
-
+        connectTelephonyRxAudioSource();
         // If the TX device is on the primary HW module but RX device is
         // on other HW module, SinkMetaData of telephony input should handle it
         // assuming the device uses audio HAL V5.0 and above
@@ -652,6 +652,24 @@
     return false;
 }
 
+void AudioPolicyManager::connectTelephonyRxAudioSource()
+{
+    disconnectTelephonyRxAudioSource();
+    const struct audio_port_config source = {
+        .role = AUDIO_PORT_ROLE_SOURCE, .type = AUDIO_PORT_TYPE_DEVICE,
+        .ext.device.type = AUDIO_DEVICE_IN_TELEPHONY_RX, .ext.device.address = ""
+    };
+    const auto aa = mEngine->getAttributesForStreamType(AUDIO_STREAM_VOICE_CALL);
+    status_t status = startAudioSource(&source, &aa, &mCallRxSourceClientPort, 0/*uid*/);
+    ALOGE_IF(status != NO_ERROR, "%s failed to start Telephony Rx AudioSource", __func__);
+}
+
+void AudioPolicyManager::disconnectTelephonyRxAudioSource()
+{
+    stopAudioSource(mCallRxSourceClientPort);
+    mCallRxSourceClientPort = AUDIO_PORT_HANDLE_NONE;
+}
+
 void AudioPolicyManager::setPhoneState(audio_mode_t state)
 {
     ALOGV("setPhoneState() state %d", state);
@@ -719,10 +737,7 @@
         if (state == AUDIO_MODE_IN_CALL) {
             updateCallRouting(rxDevices, delayMs);
         } else if (oldState == AUDIO_MODE_IN_CALL) {
-            if (mCallRxPatch != 0) {
-                releaseAudioPatchInternal(mCallRxPatch->getHandle());
-                mCallRxPatch.clear();
-            }
+            disconnectTelephonyRxAudioSource();
             if (mCallTxPatch != 0) {
                 releaseAudioPatchInternal(mCallTxPatch->getHandle());
                 mCallTxPatch.clear();
@@ -3796,6 +3811,41 @@
                 sinkDevice->toAudioPortConfig(&sinkPortConfig, &patch->sinks[i]);
                 patchBuilder.addSink(sinkPortConfig);
 
+                // Whatever Sw or Hw bridge, we do attach an SwOutput to an Audio Source for
+                // volume management purpose (tracking activity)
+                // In case of Hw bridge, it is a Work Around. The mixPort used is the one declared
+                // in config XML to reach the sink so that is can be declared as available.
+                audio_io_handle_t output = AUDIO_IO_HANDLE_NONE;
+                sp<SwAudioOutputDescriptor> outputDesc = nullptr;
+                if (sourceDesc != nullptr) {
+                    // take care of dynamic routing for SwOutput selection,
+                    audio_attributes_t attributes = sourceDesc->attributes();
+                    audio_stream_type_t stream = sourceDesc->stream();
+                    audio_attributes_t resultAttr;
+                    audio_config_t config = AUDIO_CONFIG_INITIALIZER;
+                    config.sample_rate = sourceDesc->config().sample_rate;
+                    config.channel_mask = sourceDesc->config().channel_mask;
+                    config.format = sourceDesc->config().format;
+                    audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE;
+                    audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE;
+                    bool isRequestedDeviceForExclusiveUse = false;
+                    output_type_t outputType;
+                    getOutputForAttrInt(&resultAttr, &output, AUDIO_SESSION_NONE, &attributes,
+                                        &stream, sourceDesc->uid(), &config, &flags,
+                                        &selectedDeviceId, &isRequestedDeviceForExclusiveUse,
+                                        nullptr, &outputType);
+                    if (output == AUDIO_IO_HANDLE_NONE) {
+                        ALOGV("%s no output for device %s",
+                              __FUNCTION__, sinkDevice->toString().c_str());
+                        return INVALID_OPERATION;
+                    }
+                    outputDesc = mOutputs.valueFor(output);
+                    if (outputDesc->isDuplicated()) {
+                        ALOGE("%s output is duplicated", __func__);
+                        return INVALID_OPERATION;
+                    }
+                    sourceDesc->setSwOutput(outputDesc);
+                }
                 // create a software bridge in PatchPanel if:
                 // - source and sink devices are on different HW modules OR
                 // - audio HAL version is < 3.0
@@ -3811,49 +3861,25 @@
                     if (patch->num_sinks > 1) {
                         return INVALID_OPERATION;
                     }
-                    audio_io_handle_t output = AUDIO_IO_HANDLE_NONE;
-                    if (sourceDesc != nullptr) {
-                        // take care of dynamic routing for SwOutput selection,
-                        audio_attributes_t attributes = sourceDesc->attributes();
-                        audio_stream_type_t stream = sourceDesc->stream();
-                        audio_attributes_t resultAttr;
-                        audio_config_t config = AUDIO_CONFIG_INITIALIZER;
-                        config.sample_rate = sourceDesc->config().sample_rate;
-                        config.channel_mask = sourceDesc->config().channel_mask;
-                        config.format = sourceDesc->config().format;
-                        audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE;
-                        audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE;
-                        bool isRequestedDeviceForExclusiveUse = false;
-                        output_type_t outputType;
-                        getOutputForAttrInt(&resultAttr, &output, AUDIO_SESSION_NONE, &attributes,
-                                            &stream, sourceDesc->uid(), &config, &flags,
-                                            &selectedDeviceId, &isRequestedDeviceForExclusiveUse,
-                                            nullptr, &outputType);
-                        if (output == AUDIO_IO_HANDLE_NONE) {
-                            ALOGV("%s no output for device %s",
-                                  __FUNCTION__, sinkDevice->toString().c_str());
-                            return INVALID_OPERATION;
-                        }
-                    } else {
+                    if (sourceDesc == nullptr) {
                         SortedVector<audio_io_handle_t> outputs =
                                 getOutputsForDevices(DeviceVector(sinkDevice), mOutputs);
                         // if the sink device is reachable via an opened output stream, request to
                         // go via this output stream by adding a second source to the patch
                         // description
                         output = selectOutput(outputs);
-                    }
-                    if (output != AUDIO_IO_HANDLE_NONE) {
-                        sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueFor(output);
-                        if (outputDesc->isDuplicated()) {
-                            ALOGV("%s output for device %s is duplicated",
-                                  __FUNCTION__, sinkDevice->toString().c_str());
-                            return INVALID_OPERATION;
+                        if (output != AUDIO_IO_HANDLE_NONE) {
+                            outputDesc = mOutputs.valueFor(output);
+                            if (outputDesc->isDuplicated()) {
+                                ALOGV("%s output for device %s is duplicated",
+                                      __FUNCTION__, sinkDevice->toString().c_str());
+                                return INVALID_OPERATION;
+                            }
                         }
+                    }
+                    if (outputDesc != nullptr) {
                         audio_port_config srcMixPortConfig = {};
                         outputDesc->toAudioPortConfig(&srcMixPortConfig, &patch->sources[0]);
-                        if (sourceDesc != nullptr) {
-                            sourceDesc->setSwOutput(outputDesc);
-                        }
                         // for volume control, we may need a valid stream
                         srcMixPortConfig.ext.mix.usecase.stream = sourceDesc != nullptr ?
                                     sourceDesc->stream() : AUDIO_STREAM_PATCH;
@@ -3944,8 +3970,9 @@
                 sp<SwAudioOutputDescriptor> outputDesc =
                         mOutputs.getOutputFromId(patch->sources[1].id);
                 if (outputDesc == NULL) {
-                    ALOGE("%s output not found for id %d", __func__, patch->sources[0].id);
-                    return BAD_VALUE;
+                    ALOGW("%s output not found for id %d", __func__, patch->sources[0].id);
+                    // releaseOutput has already called closeOuput in case of direct output
+                    return NO_ERROR;
                 }
                 if (patchDesc->getHandle() != outputDesc->getPatchHandle()) {
                     // force SwOutput patch removal as AF counter part patch has already gone.
@@ -4211,15 +4238,19 @@
     disconnectAudioSource(sourceDesc);
 
     audio_attributes_t attributes = sourceDesc->attributes();
-    sp<DeviceDescriptor> srcDevice = sourceDesc->srcDevice();
-
+    // May the device (dynamic) have been disconnected/reconnected, id has changed.
+    sp<DeviceDescriptor> srcDevice = mAvailableInputDevices.getDevice(
+                sourceDesc->srcDevice()->type(),
+                String8(sourceDesc->srcDevice()->address().c_str()),
+                AUDIO_FORMAT_DEFAULT);
     DeviceVector sinkDevices =
-            mEngine->getOutputDevicesForAttributes(attributes, nullptr, true);
+            mEngine->getOutputDevicesForAttributes(attributes, nullptr, false /*fromCache*/);
     ALOG_ASSERT(!sinkDevices.isEmpty(), "connectAudioSource(): no device found for attributes");
     sp<DeviceDescriptor> sinkDevice = sinkDevices.itemAt(0);
-    ALOG_ASSERT(mAvailableOutputDevices.contains(sinkDevice), "%s: Device %s not available",
-                __FUNCTION__, sinkDevice->toString().c_str());
-
+    if (!mAvailableOutputDevices.contains(sinkDevice)) {
+        ALOGE("%s Device %s not available", __func__, sinkDevice->toString().c_str());
+        return INVALID_OPERATION;
+    }
     PatchBuilder patchBuilder;
     patchBuilder.addSink(sinkDevice).addSource(srcDevice);
     audio_patch_handle_t handle = AUDIO_PATCH_HANDLE_NONE;
@@ -4229,7 +4260,7 @@
         ALOGW("%s patch panel could not connect device patch, error %d", __func__, status);
         return INVALID_OPERATION;
     }
-    sourceDesc->setPatchHandle(handle);
+    sourceDesc->connect(handle, sinkDevice);
     // SW Bridge? (@todo: HW bridge, keep track of HwOutput for device selection "reconsideration")
     sp<SwAudioOutputDescriptor> swOutput = sourceDesc->swOutput().promote();
     if (swOutput != 0) {
@@ -4512,6 +4543,10 @@
 status_t AudioPolicyManager::disconnectAudioSource(const sp<SourceClientDescriptor>& sourceDesc)
 {
     ALOGV("%s port Id %d", __FUNCTION__, sourceDesc->portId());
+    if (!sourceDesc->isConnected()) {
+        ALOGV("%s port Id %d already disconnected", __FUNCTION__, sourceDesc->portId());
+        return NO_ERROR;
+    }
     sp<SwAudioOutputDescriptor> swOutput = sourceDesc->swOutput().promote();
     if (swOutput != 0) {
         status_t status = stopSource(swOutput, sourceDesc);
@@ -4527,7 +4562,9 @@
             ALOGW("%s source has neither SW nor HW output", __FUNCTION__);
         }
     }
-    return releaseAudioPatchInternal(sourceDesc->getPatchHandle());
+    status_t status = releaseAudioPatchInternal(sourceDesc->getPatchHandle());
+    sourceDesc->disconnect();
+    return status;
 }
 
 sp<SourceClientDescriptor> AudioPolicyManager::getSourceForAttributesOnOutput(
@@ -4661,10 +4698,7 @@
         }
     }
 
-    if (mPrimaryOutput == 0) {
-        ALOGE("Failed to open primary output");
-        status = NO_INIT;
-    }
+    ALOGW_IF(mPrimaryOutput == nullptr, "The policy configuration does not declare a primary output");
 
     // Silence ALOGV statements
     property_set("log.tag." LOG_TAG, "D");
@@ -4777,7 +4811,7 @@
                     setEngineDeviceConnectionState(device, AUDIO_POLICY_DEVICE_STATE_AVAILABLE);
                 }
             }
-            if (mPrimaryOutput == 0 &&
+            if (mPrimaryOutput == nullptr &&
                     outProfile->getFlags() & AUDIO_OUTPUT_FLAG_PRIMARY) {
                 mPrimaryOutput = outputDesc;
             }
@@ -4854,6 +4888,10 @@
 
 void AudioPolicyManager::removeOutput(audio_io_handle_t output)
 {
+    if (mPrimaryOutput != 0 && mPrimaryOutput == mOutputs.valueFor(output)) {
+        ALOGV("%s: removing primary output", __func__);
+        mPrimaryOutput = nullptr;
+    }
     mOutputs.removeItem(output);
     selectOutputForMusicEffects();
 }
@@ -5012,6 +5050,11 @@
                             output = AUDIO_IO_HANDLE_NONE;
                         }
                     }
+                    if (mPrimaryOutput == nullptr
+		            && (profile->getFlags() & AUDIO_OUTPUT_FLAG_PRIMARY) != 0) {
+                        ALOGV("%s(): re-assigning mPrimaryOutput", __func__);
+                        mPrimaryOutput = desc;
+                    }
                 }
             } else {
                 output = AUDIO_IO_HANDLE_NONE;
@@ -5346,6 +5389,29 @@
             mEngine->getProductStrategyForAttributes(rAttr);
 }
 
+void AudioPolicyManager::checkAudioSourceForAttributes(const audio_attributes_t &attr)
+{
+    for (size_t i = 0; i < mAudioSources.size(); i++)  {
+        sp<SourceClientDescriptor> sourceDesc = mAudioSources.valueAt(i);
+        if (sourceDesc != nullptr && followsSameRouting(attr, sourceDesc->attributes())
+                && sourceDesc->getPatchHandle() == AUDIO_PATCH_HANDLE_NONE
+                && !isCallRxAudioSource(sourceDesc)) {
+            connectAudioSource(sourceDesc);
+        }
+    }
+}
+
+void AudioPolicyManager::clearAudioSourcesForOutput(audio_io_handle_t output)
+{
+    for (size_t i = 0; i < mAudioSources.size(); i++)  {
+        sp<SourceClientDescriptor> sourceDesc = mAudioSources.valueAt(i);
+        if (sourceDesc != nullptr && sourceDesc->swOutput().promote() != nullptr
+                && sourceDesc->swOutput().promote()->mIoHandle == output) {
+            disconnectAudioSource(sourceDesc);
+        }
+    }
+}
+
 void AudioPolicyManager::checkOutputForAttributes(const audio_attributes_t &attr)
 {
     auto psId = mEngine->getProductStrategyForAttributes(attr);
@@ -5441,7 +5507,7 @@
                                 newDevices.types());
             }
             sp<SourceClientDescriptor> source = getSourceForAttributesOnOutput(srcOut, attr);
-            if (source != 0){
+            if (source != nullptr && !isCallRxAudioSource(source)) {
                 connectAudioSource(source);
             }
         }
@@ -5464,6 +5530,7 @@
     for (const auto &strategy : mEngine->getOrderedProductStrategies()) {
         auto attributes = mEngine->getAllAttributesForProductStrategy(strategy).front();
         checkOutputForAttributes(attributes);
+        checkAudioSourceForAttributes(attributes);
     }
 }
 
@@ -6436,9 +6503,10 @@
 {
     for (ssize_t i = (ssize_t)mAudioSources.size() - 1; i >= 0; i--)  {
         sp<SourceClientDescriptor> sourceDesc = mAudioSources.valueAt(i);
-        if (sourceDesc->srcDevice()->equals(deviceDesc)) {
-            ALOGV("%s releasing audio source %d", __FUNCTION__, sourceDesc->portId());
-            stopAudioSource(sourceDesc->portId());
+        if (sourceDesc->isConnected() && (sourceDesc->srcDevice()->equals(deviceDesc) ||
+                                          sourceDesc->sinkDevice()->equals(deviceDesc))
+                && !isCallRxAudioSource(sourceDesc)) {
+            disconnectAudioSource(sourceDesc);
         }
     }
 
@@ -6452,10 +6520,14 @@
                 release = true;
             }
         }
+        const char *address = deviceDesc->address().c_str();
         for (size_t j = 0; j < patchDesc->mPatch.num_sinks && !release; j++)  {
             const struct audio_port_config *sink = &patchDesc->mPatch.sinks[j];
             if (sink->type == AUDIO_PORT_TYPE_DEVICE &&
-                    sink->ext.device.type == deviceDesc->type()) {
+                    sink->ext.device.type == deviceDesc->type() &&
+                    (strnlen(address, AUDIO_DEVICE_MAX_ADDRESS_LEN) == 0
+                     || strncmp(sink->ext.device.address, address,
+                                 AUDIO_DEVICE_MAX_ADDRESS_LEN) == 0)) {
                 release = true;
             }
         }
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index 2a024c9..33639cd 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -556,6 +556,15 @@
          */
         void updateCallAndOutputRouting(bool forceVolumeReeval = true, uint32_t delayMs = 0);
 
+        bool isCallRxAudioSource(const sp<SourceClientDescriptor> &source) {
+            return mCallRxSourceClientPort != AUDIO_PORT_HANDLE_NONE
+                && source == mAudioSources.valueFor(mCallRxSourceClientPort);
+        }
+
+        void connectTelephonyRxAudioSource();
+
+        void disconnectTelephonyRxAudioSource();
+
         /**
          * @brief updates routing for all inputs.
          */
@@ -571,6 +580,16 @@
          */
         void checkOutputForAttributes(const audio_attributes_t &attr);
 
+        /**
+         * @brief checkAudioSourceForAttributes checks if any AudioSource following the same routing
+         * as the given audio attributes is not routed and try to connect it.
+         * It must be called once checkOutputForAttributes has been called for orphans AudioSource,
+         * aka AudioSource not attached to any Audio Output (e.g. AudioSource connected to direct
+         * Output which has been disconnected (and output closed) due to sink device unavailable).
+         * @param attr to be considered
+         */
+        void checkAudioSourceForAttributes(const audio_attributes_t &attr);
+
         bool followsSameRouting(const audio_attributes_t &lAttr,
                                 const audio_attributes_t &rAttr) const;
 
@@ -739,6 +758,7 @@
 
         sp<SourceClientDescriptor> getSourceForAttributesOnOutput(audio_io_handle_t output,
                                                                   const audio_attributes_t &attr);
+        void clearAudioSourcesForOutput(audio_io_handle_t output);
 
         void cleanUpForDevice(const sp<DeviceDescriptor>& deviceDesc);
 
@@ -785,7 +805,6 @@
         SoundTriggerSessionCollection mSoundTriggerSessions;
 
         sp<AudioPatch> mCallTxPatch;
-        sp<AudioPatch> mCallRxPatch;
 
         HwAudioOutputCollection mHwOutputs;
         SourceClientCollection mAudioSources;
@@ -821,6 +840,10 @@
         // Cached product strategy ID corresponding to legacy strategy STRATEGY_PHONE
         product_strategy_t mCommunnicationStrategy;
 
+        // The port handle of the hardware audio source created internally for the Call RX audio
+        // end point.
+        audio_port_handle_t mCallRxSourceClientPort = AUDIO_PORT_HANDLE_NONE;
+
 private:
         void onNewAudioModulesAvailableInt(DeviceVector *newDevices);