broadcast radio: add wrapper over HAL implementation

Add radio HAL wrapper in radio service to prepare migration to HIDL.

Bug: 31973526
Change-Id: I93fc6f00a2211f7ca425be73090f12b2855c9641
diff --git a/services/radio/RadioHalLegacy.h b/services/radio/RadioHalLegacy.h
new file mode 100644
index 0000000..7d4831b
--- /dev/null
+++ b/services/radio/RadioHalLegacy.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#ifndef ANDROID_HARDWARE_RADIO_HAL_LEGACY_H
+#define ANDROID_HARDWARE_RADIO_HAL_LEGACY_H
+
+#include <utils/RefBase.h>
+#include <hardware/radio.h>
+#include "RadioInterface.h"
+#include "TunerInterface.h"
+#include "TunerCallbackInterface.h"
+
+namespace android {
+
+class RadioHalLegacy : public RadioInterface
+{
+public:
+        RadioHalLegacy(radio_class_t classId);
+
+        // RadioInterface
+        virtual int getProperties(radio_hal_properties_t *properties);
+        virtual int openTuner(const radio_hal_band_config_t *config,
+                        bool audio,
+                        sp<TunerCallbackInterface> callback,
+                        sp<TunerInterface>& tuner);
+        virtual int closeTuner(sp<TunerInterface>& tuner);
+
+        // RefBase
+        virtual void onFirstRef();
+
+        class Tuner  : public TunerInterface
+        {
+        public:
+                        Tuner(sp<TunerCallbackInterface> callback);
+
+            virtual int setConfiguration(const radio_hal_band_config_t *config);
+            virtual int getConfiguration(radio_hal_band_config_t *config);
+            virtual int scan(radio_direction_t direction, bool skip_sub_channel);
+            virtual int step(radio_direction_t direction, bool skip_sub_channel);
+            virtual int tune(unsigned int channel, unsigned int sub_channel);
+            virtual int cancel();
+            virtual int getProgramInformation(radio_program_info_t *info);
+
+            static void callback(radio_hal_event_t *halEvent, void *cookie);
+                   void onCallback(radio_hal_event_t *halEvent);
+
+            void setHalTuner(const struct radio_tuner *halTuner) { mHalTuner = halTuner; }
+            const struct radio_tuner *getHalTuner() { return mHalTuner; }
+
+        private:
+            virtual      ~Tuner();
+
+            const struct radio_tuner    *mHalTuner;
+            sp<TunerCallbackInterface>  mCallback;
+        };
+
+protected:
+        virtual     ~RadioHalLegacy();
+
+private:
+        static const char * sClassModuleNames[];
+
+        radio_class_t mClassId;
+        struct radio_hw_device  *mHwDevice;
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_RADIO_HAL_LEGACY_H