broadcast radio API

Initial implementation of system APIs for broadcast
radio framework. Added manager and interfaces to control
a broadcast radio function exposed by the radio HAL.

- RadioManager: contains data structures and definitions as well as
top level API for feature discovery and tuner interface instantiation.
- RadioTuner: interface to control a broadcast radio tuner.
- RadioModule: framework component implementing the RadioTuner interface
and controlling a HW radio module via the radio HAL.
- RadioMetadata: representation of radio meta data (Station name, PTY,
song title, artwork, etc...) communicated by the framework to the client.

Change-Id: Iee42a185c694503e25f0b2dcfa417d88f5e9549b

1 files changed, 12 insertions, 0 deletions

diff --git a/core/java/android/content/Context.java b/core/java/android/content/Context.java
index 61cdec3..80b5e0b 100644
--- a/core/java/android/content/Context.java
+++ b/core/java/android/content/Context.java
@@ -2200,6 +2200,7 @@ public abstract class Context {
             //@hide: PERSISTENT_DATA_BLOCK_SERVICE,
             MEDIA_PROJECTION_SERVICE,
             MIDI_SERVICE,
+            RADIO_SERVICE,
     })
     @Retention(RetentionPolicy.SOURCE)
     public @interface ServiceName {}
@@ -3026,6 +3027,17 @@ public abstract class Context {
      */
     public static final String MIDI_SERVICE = "midi";
 
+
+    /**
+     * Use with {@link #getSystemService} to retrieve a
+     * {@link android.hardware.radio.RadioManager} for accessing the broadcast radio service.
+     *
+     * @see #getSystemService
+     * @hide
+     */
+    public static final String RADIO_SERVICE = "radio";
+
+
     /**
      * Determine whether the given permission is allowed for a particular
      * process and user ID running in the system.