hal: avoid usage of extern functions and tables
If there is any difference in the signature of a function declared
as extern, it will not be reported by the compiler and may result
in unexpected results when executed.
All the API functions should be declared in a header file.
Change-Id: I89662e23da8118c3a9eac728b389498ed52e19c2
diff --git a/hal/audio_hw.h b/hal/audio_hw.h
index b70696d..a360f96 100644
--- a/hal/audio_hw.h
+++ b/hal/audio_hw.h
@@ -50,7 +50,7 @@
* Each usecase is mapped to a specific PCM device.
* Refer to pcm_device_table[].
*/
-typedef enum {
+enum {
USECASE_INVALID = -1,
/* Playback usecases */
USECASE_AUDIO_PLAYBACK_DEEP_BUFFER = 0,
@@ -77,7 +77,9 @@
USECASE_INCALL_REC_DOWNLINK,
USECASE_INCALL_REC_UPLINK_AND_DOWNLINK,
AUDIO_USECASE_MAX
-} audio_usecase_t;
+};
+
+const char * const use_case_table[AUDIO_USECASE_MAX];
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))