hal: Enable direct playback support for AUDIO_FORMAT_PCM_FLOAT
-Add changes to support PCM_FLOAT format using direct track.
-For targets supporting true 32 bit, convert FLOAT pcm data
to 32 bit.
-Targets which dont support true 32 bit, convert FLOAT or
32 bit input to 24 bit Packed in HAL.
Change-Id: I8052c8b878bbd4d70c0453df054953d494773b0a
diff --git a/hal/msm8916/platform.h b/hal/msm8916/platform.h
index 22a0eb0..9c2be1a 100644
--- a/hal/msm8916/platform.h
+++ b/hal/msm8916/platform.h
@@ -217,6 +217,8 @@
#define AUDIO_PARAMETER_KEY_NATIVE_AUDIO "audio.nat.codec.enabled"
#define AUDIO_PARAMETER_KEY_NATIVE_AUDIO_MODE "native_audio_mode"
+#define AUDIO_PARAMETER_KEY_TRUE_32_BIT "true_32_bit"
+
#define ALL_SESSION_VSID 0xFFFFFFFF
#define DEFAULT_MUTE_RAMP_DURATION_MS 20
#define DEFAULT_VOLUME_RAMP_DURATION_MS 20
@@ -251,6 +253,17 @@
#define HDMI_MULTI_DEFAULT_CHANNEL_COUNT 6
#define HDMI_MULTI_PERIOD_BYTES (HDMI_MULTI_PERIOD_SIZE * HDMI_MULTI_DEFAULT_CHANNEL_COUNT * 2)
+
+/* Used in calculating fragment size for pcm offload */
+#define PCM_OFFLOAD_BUFFER_DURATION 40 /* 40 millisecs */
+
+/* MAX PCM fragment size cannot be increased further due
+ * to flinger's cblk size of 1mb,and it has to be a multiple of
+ * 24 - lcm of channels supported by DSP
+ */
+#define MAX_PCM_OFFLOAD_FRAGMENT_SIZE (240 * 1024)
+#define MIN_PCM_OFFLOAD_FRAGMENT_SIZE 512
+
#define AUDIO_CAPTURE_PERIOD_DURATION_MSEC 20
#define AUDIO_CAPTURE_PERIOD_COUNT 2