audio: hal: Add AVD Drift Query support
- Add out set_param_data() and get_param_data() API.
- This API is needs to be used for client to set/get out stream
specific params.
- Currently it only supports get/set of afew out params. Going forward all
the new param needs to be supported by these APIs.
In future key,value pair based set/get param API will be deprecated.
- Use get_param_data() API to query avtimer vs device drift support.
Currently this API only supports drift query for HDMI device as for
other device DSP can directly do the drift correction.
Change-Id: Iaec94b7220cdaa243d4b616fb727aae7179539d2
diff --git a/hal/audio_extn/utils.c b/hal/audio_extn/utils.c
index b12ab8e..91e83af 100644
--- a/hal/audio_extn/utils.c
+++ b/hal/audio_extn/utils.c
@@ -155,6 +155,17 @@
#endif
};
+/* payload structure avt_device drift query */
+struct audio_avt_device_drift_stats {
+ uint32_t minor_version;
+ /* Indicates the device interface direction as either
+ * source (Tx) or sink (Rx).
+ */
+ uint16_t device_direction;
+ /*params exposed to client */
+ struct audio_avt_device_drift_param drift_param;
+};
+
static char bTable[BASE_TABLE_SIZE] = {
'A','B','C','D','E','F','G','H','I','J','K','L',
'M','N','O','P','Q','R','S','T','U','V','W','X',
@@ -1548,3 +1559,75 @@
}
#endif
+
+int audio_extn_utils_get_avt_device_drift(
+ struct audio_usecase *usecase,
+ struct audio_avt_device_drift_param *drift_param)
+{
+ int ret = 0, count = 0;
+ char avt_device_drift_mixer_ctl_name[MIXER_PATH_MAX_LENGTH] = {0};
+ struct mixer_ctl *ctl = NULL;
+ struct audio_avt_device_drift_stats drift_stats;
+ struct audio_device *adev = NULL;
+
+ if (usecase != NULL && usecase->type == PCM_PLAYBACK) {
+ adev = usecase->stream.out->dev;
+ switch(usecase->out_snd_device) {
+ case SND_DEVICE_OUT_HDMI:
+ strlcpy(avt_device_drift_mixer_ctl_name,
+ "HDMI RX Drift",
+ MIXER_PATH_MAX_LENGTH);
+ break;
+ case SND_DEVICE_OUT_DISPLAY_PORT:
+ strlcpy(avt_device_drift_mixer_ctl_name,
+ "DISPLAY Port RX Drift",
+ MIXER_PATH_MAX_LENGTH);
+ break;
+ default :
+ ALOGE("%s: Unsupported device %d",__func__,
+ usecase->stream.out->devices);
+ ret = -EINVAL;
+ }
+ } else {
+ ALOGE("%s: Invalid usecase %d ",__func__, usecase->type);
+ ret = -EINVAL;
+ }
+
+ if(ret)
+ goto done;
+
+ ctl = mixer_get_ctl_by_name(adev->mixer, avt_device_drift_mixer_ctl_name);
+ if (!ctl) {
+ ALOGE("%s: Could not get ctl for mixer cmd - %s",
+ __func__, avt_device_drift_mixer_ctl_name);
+
+ ret = -EINVAL;
+ goto done;
+ }
+
+ ALOGV("%s: Getting AV Timer vs Device Drift mixer ctrl name %s", __func__,
+ avt_device_drift_mixer_ctl_name);
+
+ mixer_ctl_update(ctl);
+ count = mixer_ctl_get_num_values(ctl);
+ if (count != sizeof(struct audio_avt_device_drift_stats)) {
+ ALOGE("%s: mixer_ctl_get_num_values() invalid drift_stats data size",
+ __func__);
+
+ ret = -EINVAL;
+ goto done;
+ }
+
+ ret = mixer_ctl_get_array(ctl, (void *)&drift_stats, count);
+ if (ret != 0) {
+ ALOGE("%s: mixer_ctl_get_array() failed to get drift_stats Params",
+ __func__);
+
+ ret = -EINVAL;
+ goto done;
+ }
+ memcpy(drift_param, &drift_stats.drift_param,
+ sizeof(struct audio_avt_device_drift_param));
+done:
+ return ret;
+}