audio: Add ril_interface to talk to radio

This is based on previous work for tuna, i9300,
i9500 and many other devices.

Change-Id: Ie94f12ee7940ffae84aec5e409a2a831b34d616f
diff --git a/audio/ril_interface.h b/audio/ril_interface.h
new file mode 100644
index 0000000..d68c6b4
--- /dev/null
+++ b/audio/ril_interface.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2013 The CyanogenMod 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 RIL_INTERFACE_H
+#define RIL_INTERFACE_H
+
+#include <telephony/ril.h>
+#include <secril-client.h>
+
+typedef void (*ril_wb_amr_callback)(void *data, int enable);
+
+struct ril_handle
+{
+    void *client;
+    int volume_steps_max;
+};
+
+
+/* Function prototypes */
+int ril_open(struct ril_handle *ril);
+
+int ril_close(struct ril_handle *ril);
+
+int ril_set_call_volume(struct ril_handle *ril,
+                        enum _SoundType sound_type,
+                        float volume);
+
+int ril_set_call_audio_path(struct ril_handle *ril,
+                            enum _AudioPath path);
+
+int ril_set_call_clock_sync(struct ril_handle *ril,
+                            enum _SoundClockCondition condition);
+
+int ril_set_mute(struct ril_handle *ril, enum _MuteCondition condition);
+
+int ril_set_two_mic_control(struct ril_handle *ril,
+                            enum __TwoMicSolDevice device,
+                            enum __TwoMicSolReport report);
+
+int ril_set_wb_amr_callback(struct ril_handle *ril,
+                            ril_wb_amr_callback fn,
+                            void *data);
+
+#endif