commit 14956cc9597f084add579e54c644aa202ca93088
author Manish Dewangan <manish@codeaurora.org> Tue Feb 14 18:54:42 2017 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> Wed May 17 02:31:28 2017 -0700
tree 959dd774fbbd1032c3e562bc151694fc8c392349
parent 27346045e7beb99d47b5ddd9a8e03f7fc85a1bc8

audio: hal: support for out start delay

-Changes to add support for out start delay

Change-Id: I27a55267efa888925c837639cb3349c6e19da249

hal/audio_extn/audio_defs.h

diff --git a/hal/audio_extn/audio_defs.h b/hal/audio_extn/audio_defs.h
index 3f120d6..eaf9b06 100644
--- a/hal/audio_extn/audio_defs.h
+++ b/hal/audio_extn/audio_defs.h
@@ -173,12 +173,17 @@
    uint64_t        render_we; /* render window end value in microseconds*/
 };
 
+struct audio_out_start_delay_param {
+   uint64_t        start_delay; /* session start delay in microseconds*/
+};
+
 typedef union {
     struct source_tracking_param st_params;
     struct sound_focus_param sf_params;
     struct aptx_dec_param aptx_params;
     struct audio_avt_device_drift_param drift_params;
     struct audio_out_render_window_param render_window_param;
+    struct audio_out_start_delay_param start_delay;
 } audio_extn_param_payload;
 
 typedef enum {
@@ -186,7 +191,8 @@
     AUDIO_EXTN_PARAM_SOUND_FOCUS,
     AUDIO_EXTN_PARAM_APTX_DEC,
     AUDIO_EXTN_PARAM_AVT_DEVICE_DRIFT,
-    AUDIO_EXTN_PARAM_OUT_RENDER_WINDOW /* PARAM to set render window */
+    AUDIO_EXTN_PARAM_OUT_RENDER_WINDOW, /* PARAM to set render window */
+    AUDIO_EXTN_PARAM_OUT_START_DELAY
 } audio_extn_param_id;
 
 #endif /* AUDIO_DEFS_H */

hal/audio_extn/audio_extn.h

diff --git a/hal/audio_extn/audio_extn.h b/hal/audio_extn/audio_extn.h
index 42f3676..ed7f479 100644
--- a/hal/audio_extn/audio_extn.h
+++ b/hal/audio_extn/audio_extn.h
@@ -838,4 +838,7 @@
 int audio_extn_utils_compress_set_render_window(
             struct stream_out *out,
             struct audio_out_render_window_param *render_window);
+int audio_extn_utils_compress_set_start_delay(
+            struct stream_out *out,
+            struct audio_out_start_delay_param *start_delay_param);
 #endif /* AUDIO_EXTN_H */

hal/audio_extn/utils.c

diff --git a/hal/audio_extn/utils.c b/hal/audio_extn/utils.c
index 8397b2e..b8be7aa 100644
--- a/hal/audio_extn/utils.c
+++ b/hal/audio_extn/utils.c
@@ -1876,3 +1876,63 @@
     return 0;
 }
 #endif
+
+#ifdef SNDRV_COMPRESS_START_DELAY
+int audio_extn_utils_compress_set_start_delay(
+            struct stream_out *out,
+            struct audio_out_start_delay_param *delay_param)
+{
+    struct snd_compr_metadata metadata;
+    int ret = -EINVAL;
+
+    if(delay_param == NULL) {
+        ALOGE("%s:: Invalid delay_param", __func__);
+        goto exit;
+    }
+
+    ALOGD("%s:: render start delay 0x%"PRIx64" ", __func__,
+          delay_param->start_delay);
+
+    if (!is_offload_usecase(out->usecase)) {
+        ALOGE("%s:: not supported for non offload session", __func__);
+        goto exit;
+    }
+
+   if ((out->render_mode == RENDER_MODE_AUDIO_MASTER) ||
+       (out->render_mode == RENDER_MODE_AUDIO_STC_MASTER)) {
+        /* store it to reconfigure in start_output_stream() */
+        out->delay_param.start_delay = delay_param->start_delay;
+    } else {
+        ALOGD("%s:: only supported in timestamp mode, current "
+              "render mode mode %d", __func__, out->render_mode);
+        goto exit;
+    }
+
+    if (!out->compr) {
+        ALOGW("%s:: offload session not yet opened,"
+               "start delay will be configure later", __func__);
+       goto exit;
+    }
+
+    metadata.key = SNDRV_COMPRESS_START_DELAY;
+    metadata.value[0] = 0xFFFFFFFF & delay_param->start_delay; /* lsb */
+    metadata.value[1] = \
+            (0xFFFFFFFF00000000 & delay_param->start_delay) >> 32; /* msb*/
+
+    ret = compress_set_metadata(out->compr, &metadata);
+    if(ret) {
+        ALOGE("%s::error %s", __func__, compress_get_error(out->compr));
+    }
+
+exit:
+    return ret;
+}
+#else
+int audio_extn_utils_compress_set_start_delay(
+            struct stream_out *out __unused,
+            struct audio_out_start_delay_param *delay_param __unused)
+{
+    ALOGD("%s:: configuring render window not supported", __func__);
+    return 0;
+}
+#endif