hal: Add support for BT encoder configuration
Add structures for SBC, AAC, APTX encoder configurations which are
used between audio HAL and BT IPC library for proper DSP configuration.
Also enable the feature flag for split a2dp on supported targets.
Change-Id: If126c6764cfd7a2e46cb7784ad899681de581b56
diff --git a/hal/audio_extn/a2dp.c b/hal/audio_extn/a2dp.c
index fba7e6c..b665adb 100644
--- a/hal/audio_extn/a2dp.c
+++ b/hal/audio_extn/a2dp.c
@@ -172,6 +172,46 @@
uint32_t custom_size;
};
+/* TODO: Define the following structures only for O using PLATFORM_VERSION */
+/* Information about BT SBC encoder configuration
+ * This data is used between audio HAL module and
+ * BT IPC library to configure DSP encoder
+ */
+typedef struct {
+ uint32_t subband; /* 4, 8 */
+ uint32_t blk_len; /* 4, 8, 12, 16 */
+ uint16_t sampling_rate; /*44.1khz,48khz*/
+ uint8_t channels; /*0(Mono),1(Dual_mono),2(Stereo),3(JS)*/
+ uint8_t alloc; /*0(Loudness),1(SNR)*/
+ uint8_t min_bitpool; /* 2 */
+ uint8_t max_bitpool; /*53(44.1khz),51 (48khz) */
+ uint32_t bitrate; /* 320kbps to 512kbps */
+} audio_sbc_encoder_config;
+
+
+/* Information about BT APTX encoder configuration
+ * This data is used between audio HAL module and
+ * BT IPC library to configure DSP encoder
+ */
+typedef struct {
+ uint16_t sampling_rate;
+ uint8_t channels;
+ uint32_t bitrate;
+} audio_aptx_encoder_config;
+
+
+/* Information about BT AAC encoder configuration
+ * This data is used between audio HAL module and
+ * BT IPC library to configure DSP encoder
+ */
+typedef struct {
+ uint32_t enc_mode; /* LC, SBR, PS */
+ uint16_t format_flag; /* RAW, ADTS */
+ uint16_t channels; /* 1-Mono, 2-Stereo */
+ uint32_t sampling_rate;
+ uint32_t bitrate;
+} audio_aac_encoder_config;
+
/*********** END of DSP configurable structures ********************/
/* API to identify DSP encoder captabilities */