libhardware: Add new APIs to support effects with DirectTrack

Change-Id: I4d931bfafae58410e73ea3164fc6c879057b1f88

1 files changed, 23 insertions, 0 deletions

diff --git a/include/hardware/audio.h b/include/hardware/audio.h
index 1533ee1..12c4a96 100644
--- a/include/hardware/audio.h
+++ b/include/hardware/audio.h
@@ -141,6 +141,9 @@ struct audio_config {
 };
 
 typedef struct audio_config audio_config_t;
+#ifdef QCOM_HARDWARE
+typedef struct buf_info;
+#endif
 
 /* common audio stream parameters and operations */
 struct audio_stream {
@@ -304,6 +307,18 @@ struct audio_stream_out {
      */
     int (*set_observer)(const struct audio_stream_out *stream,
                                void *observer);
+    /**
+     * Get the physical address of the buffer allocated in the
+     * driver
+     */
+    int (*get_buffer_info) (const struct audio_stream_out *stream,
+                                struct buf_info **buf);
+    /**
+     * Check if next buffer is available. Waits until next buffer is
+     * available
+     */
+    int (*is_buffer_available) (const struct audio_stream_out *stream,
+                                     int *isAvail);
 #endif
 
 };
@@ -598,6 +613,14 @@ static inline int audio_hw_device_close(struct audio_hw_device* device)
 }
 
 #ifdef QCOM_HARDWARE
+/** Structure to save buffer information for applying effects for
+ *  LPA buffers */
+struct buf_info {
+    int bufsize;
+    int nBufs;
+    int **buffers;
+};
+
 #ifdef __cplusplus
 /**
  *Observer class to post the Events from HAL to Flinger