Implement use of Device.setConnectedState/_7_1 HAL method

Add 'Device.setConnectedState' to libaudiohal. It tries
to use Device.setConnectedState_7_1 when supported, or
fallbacks to Device.setConnectedState.

Remove direct use of setParameters from the framework
code. Add required plumbing between APM and AF.

Bug: 211601178
Test: on the device, check that HAL still receives the update
Change-Id: Ic9ac6fbea6ceea7db504d9c962392d90e21f57cb
diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index e8e478b..082a312 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -546,6 +546,8 @@
 
     virtual status_t updateSecondaryOutputs(
             const TrackSecondaryOutputsMap& trackSecondaryOutputs) = 0;
+
+    virtual status_t setDeviceConnectedState(const struct audio_port_v7 *port, bool connected) = 0;
 };
 
     // These are the signatures of createAudioPolicyManager/destroyAudioPolicyManager
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index bd295ce..1efffad 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -112,11 +112,14 @@
 void AudioPolicyManager::broadcastDeviceConnectionState(const sp<DeviceDescriptor> &device,
                                                         audio_policy_dev_state_t state)
 {
-    AudioParameter param(String8(device->address().c_str()));
-    const String8 key(state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE ?
-                AudioParameter::keyDeviceConnect : AudioParameter::keyDeviceDisconnect);
-    param.addInt(key, device->type());
-    mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString());
+    audio_port_v7 devicePort;
+    device->toAudioPort(&devicePort);
+    if (status_t status = mpClientInterface->setDeviceConnectedState(
+                    &devicePort, state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE);
+            status != OK) {
+        ALOGE("Error %d while setting connected state for device %s", status,
+                device->getDeviceTypeAddr().toString(false).c_str());
+    }
 }
 
 status_t AudioPolicyManager::setDeviceConnectionStateInt(audio_devices_t deviceType,
diff --git a/services/audiopolicy/service/AudioPolicyClientImpl.cpp b/services/audiopolicy/service/AudioPolicyClientImpl.cpp
index aaf6fba..63a1e71 100644
--- a/services/audiopolicy/service/AudioPolicyClientImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyClientImpl.cpp
@@ -307,4 +307,15 @@
     return af->updateSecondaryOutputs(trackSecondaryOutputs);
 }
 
+status_t AudioPolicyService::AudioPolicyClient::setDeviceConnectedState(
+        const struct audio_port_v7 *port, bool connected) {
+    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
+    if (af == nullptr) {
+        ALOGW("%s: could not get AudioFlinger", __func__);
+        return PERMISSION_DENIED;
+    }
+    return af->setDeviceConnectedState(port, connected);
+}
+
+
 } // namespace android
diff --git a/services/audiopolicy/service/AudioPolicyService.h b/services/audiopolicy/service/AudioPolicyService.h
index ac5af6b..1cc6dc7 100644
--- a/services/audiopolicy/service/AudioPolicyService.h
+++ b/services/audiopolicy/service/AudioPolicyService.h
@@ -808,6 +808,9 @@
         status_t updateSecondaryOutputs(
                 const TrackSecondaryOutputsMap& trackSecondaryOutputs) override;
 
+        status_t setDeviceConnectedState(
+                const struct audio_port_v7 *port, bool connected) override;
+
      private:
         AudioPolicyService *mAudioPolicyService;
     };
diff --git a/services/audiopolicy/tests/AudioPolicyManagerTestClient.h b/services/audiopolicy/tests/AudioPolicyManagerTestClient.h
index 84b40d2..adef8f1 100644
--- a/services/audiopolicy/tests/AudioPolicyManagerTestClient.h
+++ b/services/audiopolicy/tests/AudioPolicyManagerTestClient.h
@@ -103,6 +103,11 @@
         ++mAudioPortListUpdateCount;
     }
 
+    status_t setDeviceConnectedState(
+            const struct audio_port_v7 *port __unused, bool connected __unused) override {
+        return NO_ERROR;
+    }
+
     // Helper methods for tests
     size_t getActivePatchesCount() const { return mActivePatches.size(); }
 
diff --git a/services/audiopolicy/tests/AudioPolicyTestClient.h b/services/audiopolicy/tests/AudioPolicyTestClient.h
index 4e0735b..da85658 100644
--- a/services/audiopolicy/tests/AudioPolicyTestClient.h
+++ b/services/audiopolicy/tests/AudioPolicyTestClient.h
@@ -96,6 +96,10 @@
             const TrackSecondaryOutputsMap& trackSecondaryOutputs __unused) override {
         return NO_INIT;
     }
+    status_t setDeviceConnectedState(
+            const struct audio_port_v7 *port __unused, bool connected __unused) override {
+        return NO_INIT;
+    }
 };
 
 } // namespace android