TIF: change input state based on the number of available streams

HAL implementation may indicate that the input port is disconnected
by exposing no available streams. Framework detects the change and
update input state accordingly.

Bug: 17648994
Change-Id: I15900288ff8eab6d2b7bd705f2b3c05263714152

diff --git a/services/core/java/com/android/server/tv/TvInputHardwareManager.java b/services/core/java/com/android/server/tv/TvInputHardwareManager.java
index 44e4ad1..564f245 100644 (file)
--- a/services/core/java/com/android/server/tv/TvInputHardwareManager.java
+++ b/services/core/java/com/android/server/tv/TvInputHardwareManager.java
@@ -188,6 +188,11 @@ class TvInputHardwareManager implements TvInputHal.Callback {
                 return;
             }
             connection.updateConfigsLocked(configs);
+            String inputId = mHardwareInputIdMap.get(deviceId);
+            if (inputId != null) {
+                mHandler.obtainMessage(ListenerHandler.STATE_CHANGED,
+                        convertConnectedToState(config.length > 0), 0, inputId).sendToTarget();
+            }
             try {
                 connection.getCallbackLocked().onStreamConfigChanged(configs);
             } catch (RemoteException e) {
@@ -257,6 +262,9 @@ class TvInputHardwareManager implements TvInputHal.Callback {
             mHardwareInputIdMap.put(deviceId, info.getId());
             mInputMap.put(info.getId(), info);
 
+            // Process pending state changes
+
+            // For logical HDMI devices, they have information from HDMI CEC signals.
             for (int i = 0; i < mHdmiStateMap.size(); ++i) {
                 TvInputHardwareInfo hardwareInfo =
                         findHardwareInfoForHdmiPortLocked(mHdmiStateMap.keyAt(i));
@@ -268,8 +276,17 @@ class TvInputHardwareManager implements TvInputHal.Callback {
                     mHandler.obtainMessage(ListenerHandler.STATE_CHANGED,
                             convertConnectedToState(mHdmiStateMap.valueAt(i)), 0,
                             inputId).sendToTarget();
+                    return;
                 }
             }
+            // For the rest of the devices, we can tell by the number of available streams.
+            Connection connection = mConnections.get(deviceId);
+            if (connection != null) {
+                mHandler.obtainMessage(ListenerHandler.STATE_CHANGED,
+                        convertConnectedToState(connection.getConfigsLocked().length > 0), 0,
+                        info.getId()).sendToTarget();
+                return;
+            }
         }
     }