Merge "hal : non-ms12 fmt support in qaf"
diff --git a/configs/msm8998/audio_output_policy.conf b/configs/msm8998/audio_output_policy.conf
index f1694b5..3a610c1 100644
--- a/configs/msm8998/audio_output_policy.conf
+++ b/configs/msm8998/audio_output_policy.conf
@@ -18,6 +18,13 @@
     bit_width 16
     app_type 69937
   }
+  proaudio {
+    flags AUDIO_OUTPUT_FLAG_FAST|AUDIO_OUTPUT_FLAG_RAW
+    formats AUDIO_FORMAT_PCM_16_BIT
+    sampling_rates 48000
+    bit_width 16
+    app_type 69943
+  }
   deep_buffer {
     flags AUDIO_OUTPUT_FLAG_DEEP_BUFFER
     formats AUDIO_FORMAT_PCM_16_BIT
diff --git a/configs/sdm660/audio_platform_info.xml b/configs/sdm660/audio_platform_info.xml
index a68d8c2..8b31fb1 100644
--- a/configs/sdm660/audio_platform_info.xml
+++ b/configs/sdm660/audio_platform_info.xml
@@ -76,11 +76,11 @@
     </config_params>
     <acdb_ids>
         <device name="SND_DEVICE_OUT_SPEAKER" acdb_id="15"/>
-        <device name="SND_DEVICE_OUT_SPEAKER_PROTECTED" acdb_id="136"/>
-        <device name="SND_DEVICE_OUT_VOICE_SPEAKER_PROTECTED" acdb_id="136"/>
-        <device name="SND_DEVICE_OUT_SPEAKER_PROTECTED_VBAT" acdb_id="136"/>
-        <device name="SND_DEVICE_OUT_VOICE_SPEAKER_PROTECTED_VBAT" acdb_id="136"/>
-        <device name="SND_DEVICE_IN_CAPTURE_VI_FEEDBACK" acdb_id="137"/>
+        <device name="SND_DEVICE_OUT_SPEAKER_PROTECTED" acdb_id="124"/>
+        <device name="SND_DEVICE_OUT_VOICE_SPEAKER_PROTECTED" acdb_id="101"/>
+        <device name="SND_DEVICE_OUT_SPEAKER_PROTECTED_VBAT" acdb_id="124"/>
+        <device name="SND_DEVICE_OUT_VOICE_SPEAKER_PROTECTED_VBAT" acdb_id="101"/>
+        <device name="SND_DEVICE_IN_CAPTURE_VI_FEEDBACK" acdb_id="102"/>
         <device name="SND_DEVICE_OUT_VOICE_SPEAKER_2_PROTECTED" acdb_id="150"/>
         <device name="SND_DEVICE_OUT_VOICE_SPEAKER_2_PROTECTED_VBAT" acdb_id="150"/>
         <device name="SND_DEVICE_IN_CAPTURE_VI_FEEDBACK_MONO_1" acdb_id="151"/>
diff --git a/hal/audio_extn/audio_defs.h b/hal/audio_extn/audio_defs.h
index ae90cb3..cbc9014 100644
--- a/hal/audio_extn/audio_defs.h
+++ b/hal/audio_extn/audio_defs.h
@@ -106,6 +106,8 @@
 /* Set or Query stream profile type */
 #define AUDIO_PARAMETER_STREAM_PROFILE "audio_stream_profile"
 
+#define AUDIO_PARAMETER_KEY_VR_AUDIO_MODE "vr_audio_mode_on"
+
 /* audio input flags for compress and timestamp mode.
  * check other input flags defined in audio.h for conflicts
  */
@@ -138,16 +140,42 @@
    struct aptx_dec_bt_addr bt_addr;
 };
 
+struct audio_avt_device_drift_param {
+   /* Flag to indicate if resync is required on the client side for
+    * drift correction. Flag is set to TRUE for the first get_param response
+    * after device interface starts. This flag value can be used by client
+    * to identify if device interface restart has happened and if any
+    * re-sync is required at their end for drift correction.
+    */
+    uint32_t        resync_flag;
+    /* Accumulated drift value in microseconds. This value is updated
+     * every 100th ms.
+     * Positive drift value indicates AV timer is running faster than device.
+     * Negative drift value indicates AV timer is running slower than device.
+     */
+    int32_t         avt_device_drift_value;
+    /* Lower 32 bits of the 64-bit absolute timestamp of reference
+     * timer in microseconds.
+     */
+    uint32_t        ref_timer_abs_ts_lsw;
+    /* Upper 32 bits of the 64-bit absolute timestamp of reference
+     * timer in microseconds.
+     */
+    uint32_t        ref_timer_abs_ts_msw;
+};
+
 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;
 } audio_extn_param_payload;
 
 typedef enum {
     AUDIO_EXTN_PARAM_SOURCE_TRACK,
     AUDIO_EXTN_PARAM_SOUND_FOCUS,
-    AUDIO_EXTN_PARAM_APTX_DEC
+    AUDIO_EXTN_PARAM_APTX_DEC,
+    AUDIO_EXTN_PARAM_AVT_DEVICE_DRIFT
 } audio_extn_param_id;
 
 #endif /* AUDIO_DEFS_H */
diff --git a/hal/audio_extn/audio_extn.c b/hal/audio_extn/audio_extn.c
index c9d3cf8..bc722f8 100644
--- a/hal/audio_extn/audio_extn.c
+++ b/hal/audio_extn/audio_extn.c
@@ -180,6 +180,41 @@
     return ret;
 }
 
+static int update_audio_ack_state(const struct audio_device *adev, int node_value)
+{
+    const char *mixer_ctl_name = "External Display Audio Ack";
+    struct mixer_ctl *ctl;
+    int ret = 0;
+
+    ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name);
+    /* If no mixer command support, fall back to sysfs node approach */
+    if (!ctl) {
+        ALOGI("%s: could not get ctl for mixer cmd(%s), use sysfs node instead\n",
+              __func__, mixer_ctl_name);
+        ret = update_ext_disp_sysfs_node(adev, node_value);
+    } else {
+        char *ack_str = NULL;
+
+        if (node_value == EXT_DISPLAY_PLUG_STATUS_NOTIFY_ENABLE)
+            ack_str = "Ack_Enable";
+        else if (node_value == 1)
+            ack_str = "Connect";
+        else if (node_value == 0)
+            ack_str = "Disconnect";
+        else {
+            ALOGE("%s: Invalid input parameter - 0x%x\n",
+                  __func__, node_value);
+            return -EINVAL;
+        }
+
+        ret = mixer_ctl_set_enum_by_string(ctl, ack_str);
+        if (ret)
+            ALOGE("%s: Could not set ctl for mixer cmd - %s ret %d\n",
+                  __func__, mixer_ctl_name, ret);
+    }
+    return ret;
+}
+
 static void audio_extn_ext_disp_set_parameters(const struct audio_device *adev,
                                                      struct str_parms *parms)
 {
@@ -192,13 +227,13 @@
         if (is_hdmi_sysfs_node_init == false) {
             //check if this is different for dp and hdmi
             is_hdmi_sysfs_node_init = true;
-            update_ext_disp_sysfs_node(adev, EXT_DISPLAY_PLUG_STATUS_NOTIFY_ENABLE);
+            update_audio_ack_state(adev, EXT_DISPLAY_PLUG_STATUS_NOTIFY_ENABLE);
         }
-        update_ext_disp_sysfs_node(adev, 1);
+        update_audio_ack_state(adev, 1);
     } else if(str_parms_get_str(parms, "disconnect", value, sizeof(value)) >= 0
             && (atoi(value) & AUDIO_DEVICE_OUT_AUX_DIGITAL)){
         //params = "disconnect=1024" for external display disconnection.
-        update_ext_disp_sysfs_node(adev, 0);
+        update_audio_ack_state(adev, 0);
         ALOGV("invalidate cached edid");
         platform_invalidate_hdmi_config(adev->platform);
     } else {
diff --git a/hal/audio_extn/audio_extn.h b/hal/audio_extn/audio_extn.h
index 93036af..b83ef4d 100644
--- a/hal/audio_extn/audio_extn.h
+++ b/hal/audio_extn/audio_extn.h
@@ -820,4 +820,7 @@
 int audio_extn_set_aptx_dec_params(struct aptx_dec_param *payload);
 #endif
 
+int audio_extn_utils_get_avt_device_drift(
+                struct audio_usecase *usecase,
+                struct audio_avt_device_drift_param *drift_param);
 #endif /* AUDIO_EXTN_H */
diff --git a/hal/audio_extn/utils.c b/hal/audio_extn/utils.c
index b12ab8e..217f110 100644
--- a/hal/audio_extn/utils.c
+++ b/hal/audio_extn/utils.c
@@ -92,6 +92,7 @@
     STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DIRECT_PCM),
     STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY),
     STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_FAST),
+    STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_RAW),
     STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER),
     STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD),
     STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING),
@@ -155,6 +156,17 @@
 #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',
@@ -192,7 +204,7 @@
         flag_name = strtok_r(NULL, "|", &last_r);
     }
 
-    ALOGV("parse_flag_names: flag - %d", flag);
+    ALOGV("parse_flag_names: flag - %x", flag);
     io_flags.in_flags = (audio_input_flags_t)flag;
     io_flags.out_flags = (audio_output_flags_t)flag;
     return io_flags;
@@ -676,8 +688,8 @@
               __func__, sample_rate, bit_width);
     }
 
-    ALOGV("%s: flags: %x, format: %x sample_rate %d, profile %s",
-           __func__, flags, format, sample_rate, profile);
+    ALOGV("%s: flags: %x, format: %x sample_rate %d, profile %s, app_type %d",
+           __func__, flags, format, sample_rate, profile, app_type_cfg->app_type);
     list_for_each(node_i, streams_output_cfg_list) {
         s_info = node_to_item(node_i, struct streams_io_cfg, list);
         /* Along with flags do profile matching if set at either end.*/
@@ -725,6 +737,12 @@
     return native_usecase;
 }
 
+
+static inline bool audio_is_vr_mode_on(struct audio_device *(__attribute__((unused)) adev))
+{
+    return adev->vr_audio_mode_enabled;
+}
+
 void audio_extn_utils_update_stream_app_type_cfg_for_usecase(
                                     struct audio_device *adev,
                                     struct audio_usecase *usecase)
@@ -789,12 +807,21 @@
     if ((usecase->id != USECASE_AUDIO_PLAYBACK_DEEP_BUFFER) &&
         (usecase->id != USECASE_AUDIO_PLAYBACK_LOW_LATENCY) &&
         (usecase->id != USECASE_AUDIO_PLAYBACK_MULTI_CH) &&
+        (usecase->id != USECASE_AUDIO_PLAYBACK_ULL) &&
         (!is_offload_usecase(usecase->id)) &&
         (usecase->type != PCM_CAPTURE)) {
         ALOGV("%s: a rx/tx/loopback path where app type cfg is not required %d", __func__, usecase->id);
         rc = 0;
         goto exit_send_app_type_cfg;
     }
+
+    //if VR is active then only send the mixer control
+    if (usecase->id == USECASE_AUDIO_PLAYBACK_ULL && !audio_is_vr_mode_on(adev)) {
+            ALOGI("ULL doesnt need sending app type cfg, returning");
+            rc = 0;
+            goto exit_send_app_type_cfg;
+    }
+
     if (usecase->type == PCM_PLAYBACK) {
         pcm_device_id = platform_get_pcm_device_id(usecase->id, PCM_PLAYBACK);
         snprintf(mixer_ctl_name, sizeof(mixer_ctl_name),
@@ -1548,3 +1575,75 @@
 
 }
 #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;
+}
diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index 9da81e6..6644b48 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -2169,6 +2169,9 @@
     struct audio_usecase *uc_info;
     struct audio_device *adev = out->dev;
     int snd_card_status = get_snd_card_state(adev);
+    char mixer_ctl_name[128];
+    struct mixer_ctl *ctl = NULL;
+    char* perf_mode[] = {"ULL", "ULL_PP", "LL"};
 
     if ((out->usecase < 0) || (out->usecase >= AUDIO_USECASE_MAX)) {
         ret = -EINVAL;
@@ -2249,6 +2252,28 @@
         } else
             flags |= PCM_MONOTONIC;
 
+        if ((adev->vr_audio_mode_enabled) &&
+            (out->flags & AUDIO_OUTPUT_FLAG_RAW)) {
+            snprintf(mixer_ctl_name, sizeof(mixer_ctl_name),
+                    "PCM_Dev %d Topology", out->pcm_device_id);
+            ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name);
+            if (!ctl) {
+                ALOGI("%s: Could not get ctl for mixer cmd might be ULL - %s",
+                      __func__, mixer_ctl_name);
+            } else {
+                //if success use ULLPP
+                ALOGI("%s: mixer ctrl %s succeeded setting up ULL for %d",
+                    __func__, mixer_ctl_name, out->pcm_device_id);
+                //There is a still a possibility that some sessions
+                // that request for FAST|RAW when 3D audio is active
+                //can go through ULLPP. Ideally we expects apps to
+                //listen to audio focus and stop concurrent playback
+                //Also, we will look for mode flag (voice_in_communication)
+                //before enabling the realtime flag.
+                mixer_ctl_set_enum_by_string(ctl, perf_mode[1]);
+            }
+        }
+
         while (1) {
             out->pcm = pcm_open(adev->snd_card, out->pcm_device_id,
                                flags, &out->config);
@@ -4245,8 +4270,8 @@
         }
     }
 
-    ALOGV("%s devices:%d, format:%x, out->sample_rate:%d,out->bit_width:%d out->format:%d out->flags:%x, flags:%x",
-          __func__, devices, format, out->sample_rate, out->bit_width, out->format, out->flags, flags);
+    ALOGV("%s devices:%d, format:%x, out->sample_rate:%d,out->bit_width:%d out->format:%d out->flags:%x, flags: %x usecase %d",
+          __func__, devices, format, out->sample_rate, out->bit_width, out->format, out->flags, flags, out->usecase);
 
     /* TODO remove this hardcoding and check why width is zero*/
     if (out->bit_width == 0)
@@ -4277,6 +4302,7 @@
         ret = -EEXIST;
         goto error_open;
     }
+
     pthread_mutex_unlock(&adev->lock);
 
     out->stream.common.get_sample_rate = out_get_sample_rate;
@@ -4564,6 +4590,23 @@
             }
         }
     }
+
+    //handle vr audio setparam
+    ret = str_parms_get_str(parms, AUDIO_PARAMETER_KEY_VR_AUDIO_MODE,
+        value, sizeof(value));
+    if (ret >= 0) {
+        ALOGI("Setting vr mode to be %s", value);
+        if (!strncmp(value, "true", 4)) {
+            adev->vr_audio_mode_enabled = true;
+            ALOGI("Setting vr mode to true");
+        } else if (!strncmp(value, "false", 5)) {
+            adev->vr_audio_mode_enabled = false;
+            ALOGI("Setting vr mode to false");
+        } else {
+            ALOGI("wrong vr mode set");
+        }
+    }
+
     audio_extn_set_parameters(adev, parms);
 done:
     str_parms_destroy(parms);
@@ -4605,6 +4648,30 @@
         str_parms_add_int(reply, "SND_CARD_STATUS", val);
         goto exit;
     }
+    //handle vr audio getparam
+
+    ret = str_parms_get_str(query,
+        AUDIO_PARAMETER_KEY_VR_AUDIO_MODE,
+        value, sizeof(value));
+
+    if (ret >= 0) {
+        bool vr_audio_enabled = false;
+        pthread_mutex_lock(&adev->lock);
+        vr_audio_enabled = adev->vr_audio_mode_enabled;
+        pthread_mutex_unlock(&adev->lock);
+
+        ALOGI("getting vr mode to %d", vr_audio_enabled);
+
+        if (vr_audio_enabled) {
+            str_parms_add_str(reply, AUDIO_PARAMETER_KEY_VR_AUDIO_MODE,
+                "true");
+            goto exit;
+        } else {
+            str_parms_add_str(reply, AUDIO_PARAMETER_KEY_VR_AUDIO_MODE,
+                "false");
+            goto exit;
+        }
+    }
 
     pthread_mutex_lock(&adev->lock);
     audio_extn_get_parameters(adev, query, reply);
@@ -5193,6 +5260,9 @@
     }
 
     adev->bt_wb_speech_enabled = false;
+    //initialize this to false for now,
+    //this will be set to true through set param
+    adev->vr_audio_mode_enabled = false;
 
     audio_extn_ds2_enable(adev);
     *device = &adev->device.common;
diff --git a/hal/audio_hw.h b/hal/audio_hw.h
index e99d546..abfba45 100644
--- a/hal/audio_hw.h
+++ b/hal/audio_hw.h
@@ -428,6 +428,7 @@
     bool native_playback_enabled;
     bool asrc_mode_enabled;
     qahwi_device_t qahwi_dev;
+    bool vr_audio_mode_enabled;
 };
 
 int select_devices(struct audio_device *adev,
diff --git a/hal/audio_hw_extn_api.c b/hal/audio_hw_extn_api.c
index f36d85d..25c4503 100644
--- a/hal/audio_hw_extn_api.c
+++ b/hal/audio_hw_extn_api.c
@@ -48,6 +48,61 @@
 };
 #endif
 
+static void lock_output_stream(struct stream_out *out)
+{
+    pthread_mutex_lock(&out->pre_lock);
+    pthread_mutex_lock(&out->lock);
+    pthread_mutex_unlock(&out->pre_lock);
+}
+
+/* API to send playback stream specific config parameters */
+int qahwi_out_set_param_data(struct audio_stream_out *stream __unused,
+                             audio_extn_param_id param_id __unused,
+                             audio_extn_param_payload *payload __unused) {
+    return -ENOSYS;
+}
+
+/* API to get playback stream specific config parameters */
+int qahwi_out_get_param_data(struct audio_stream_out *stream,
+                             audio_extn_param_id param_id,
+                             audio_extn_param_payload *payload)
+{
+    int ret = -EINVAL;
+    struct stream_out *out = (struct stream_out *)stream;
+    struct audio_usecase *uc_info;
+
+    if (!stream || !payload) {
+        ALOGE("%s:: Invalid Param",__func__);
+        return ret;
+    }
+
+    lock_output_stream(out);
+    ALOGD("%s: enter: stream (%p) usecase(%d: %s) param_id %d", __func__,
+           stream, out->usecase, use_case_table[out->usecase], param_id);
+
+    switch (param_id) {
+        case AUDIO_EXTN_PARAM_AVT_DEVICE_DRIFT:
+            uc_info = get_usecase_from_list(out->dev, out->usecase);
+            if (uc_info == NULL) {
+                ALOGE("%s: Could not find the usecase (%d) in the list",
+                       __func__, out->usecase);
+                ret = -EINVAL;
+            } else {
+                ret = audio_extn_utils_get_avt_device_drift(uc_info,
+                        (struct audio_avt_device_drift_param *)payload);
+                if(ret)
+                    ALOGE("%s:: avdrift query failed error %d", __func__, ret);
+            }
+            break;
+        default:
+            ALOGE("%s:: unsupported param_id %d", __func__, param_id);
+            break;
+    }
+
+    pthread_mutex_unlock(&out->lock);
+    return ret;
+}
+
 int qahwi_get_param_data(const struct audio_hw_device *adev,
                          audio_extn_param_id param_id,
                          audio_extn_param_payload *payload)
diff --git a/policy_hal/AudioPolicyManager.cpp b/policy_hal/AudioPolicyManager.cpp
index 147c03c..cb22dc7 100644
--- a/policy_hal/AudioPolicyManager.cpp
+++ b/policy_hal/AudioPolicyManager.cpp
@@ -1593,6 +1593,7 @@
         // requested sample rate matches with that of voip input stream (if opened already)
         int value = 0;
         uint32_t mode = 0, voipOutCount = 1, voipSampleRate = 1;
+        bool is_vr_mode_on = false;
         String8 valueStr = mpClientInterface->getParameters((audio_io_handle_t)0,
                                                            String8("audio_mode"));
         AudioParameter result = AudioParameter(valueStr);
@@ -1627,6 +1628,25 @@
                 }
             }
         }
+        //IF VOIP is going to be started at the same time as when
+        //vr is enabled, get VOIP to fallback to low latency
+        String8 vr_value;
+        valueStr =  mpClientInterface->getParameters((audio_io_handle_t)0,
+                                              String8("vr_audio_mode_on"));
+        result = AudioParameter(valueStr);
+        if (result.get(String8("vr_audio_mode_on"), vr_value) == NO_ERROR) {
+            is_vr_mode_on = vr_value.contains("true");
+            ALOGI("VR mode is %d, switch to primary output if request is for fast|raw",
+                is_vr_mode_on);
+        }
+
+        if (is_vr_mode_on) {
+             //check the flags being requested for, and clear FAST|RAW
+            flags = (audio_output_flags_t)(flags &
+                (~(AUDIO_OUTPUT_FLAG_FAST|AUDIO_OUTPUT_FLAG_RAW)));
+
+        }
+
     }
 
 #ifdef VOICE_CONCURRENCY
diff --git a/qahw_api/inc/qahw_api.h b/qahw_api/inc/qahw_api.h
index 8a65686..0f3fc50 100644
--- a/qahw_api/inc/qahw_api.h
+++ b/qahw_api/inc/qahw_api.h
@@ -141,6 +141,16 @@
 char* qahw_out_get_parameters(const qahw_stream_handle_t *stream,
                                const char *keys);
 
+/* API to set playback stream specific config parameters */
+int qahw_out_set_param_data(qahw_stream_handle_t *out_handle,
+                            qahw_param_id param_id,
+                            qahw_param_payload *payload);
+
+/* API to get playback stream specific config parameters */
+int qahw_out_get_param_data(qahw_stream_handle_t *out_handle,
+                            qahw_param_id param_id,
+                            qahw_param_payload *payload);
+
 /*
  * Return the audio hardware driver estimated latency in milliseconds.
  */
@@ -270,7 +280,6 @@
 
 int qahw_close_input_stream(qahw_stream_handle_t *in_handle);
 
-
 /*
  * Return the sampling rate in Hz - eg. 44100.
  */
diff --git a/qahw_api/inc/qahw_defs.h b/qahw_api/inc/qahw_defs.h
index eb500a2..63dc4da 100644
--- a/qahw_api/inc/qahw_defs.h
+++ b/qahw_api/inc/qahw_defs.h
@@ -243,19 +243,37 @@
    struct aptx_dec_bt_addr bt_addr;
 };
 
+struct qahw_avt_device_drift_param {
+   /* Flag to indicate if resync is required on the client side for
+    * drift correction. Flag is set to TRUE for the first get_param response
+    * after device interface starts. This flag value can be used by client
+    * to identify if device interface restart has happened and if any
+    * re-sync is required at their end for drift correction.
+    */
+    uint32_t        resync_flag;
+    /* Accumulated drift value in microseconds.
+     * Positive drift value indicates AV timer is running faster than device.
+     * Negative drift value indicates AV timer is running slower than device.
+     */
+    int32_t         avt_device_drift_value;
+    /* 64-bit absolute timestamp of reference */
+    uint64_t        ref_timer_abs_ts;
+};
+
 typedef union {
     struct qahw_source_tracking_param st_params;
     struct qahw_sound_focus_param sf_params;
     struct qahw_aptx_dec_param aptx_params;
+    struct qahw_avt_device_drift_param drift_params;
 } qahw_param_payload;
 
 typedef enum {
     QAHW_PARAM_SOURCE_TRACK,
     QAHW_PARAM_SOUND_FOCUS,
-    QAHW_PARAM_APTX_DEC
+    QAHW_PARAM_APTX_DEC,
+    QAHW_PARAM_AVT_DEVICE_DRIFT /* PARAM to query AV timer vs device drift */
 } qahw_param_id;
 
-
 __END_DECLS
 
 #endif  // QTI_AUDIO_HAL_DEFS_H
diff --git a/qahw_api/src/qahw.c b/qahw_api/src/qahw.c
index 393dba9..c5cd636 100644
--- a/qahw_api/src/qahw.c
+++ b/qahw_api/src/qahw.c
@@ -47,15 +47,23 @@
  */
 #define QAHW_MODULE_API_VERSION_CURRENT QAHW_MODULE_API_VERSION_0_0
 
-typedef uint64_t (*qahwi_in_read_v2_t)(audio_stream_in_t *in, void* buffer,
-                                       size_t bytes, int64_t *timestamp);
-
 typedef int (*qahwi_get_param_data_t) (const audio_hw_device_t *,
                               qahw_param_id, qahw_param_payload *);
 
 typedef int (*qahwi_set_param_data_t) (audio_hw_device_t *,
                               qahw_param_id, qahw_param_payload *);
 
+typedef uint64_t (*qahwi_in_read_v2_t)(audio_stream_in_t *in, void* buffer,
+                                       size_t bytes, int64_t *timestamp);
+
+typedef int (*qahwi_out_set_param_data_t)(struct audio_stream_out *out,
+                                      qahw_param_id param_id,
+                                      qahw_param_payload *payload);
+
+typedef int (*qahwi_out_get_param_data_t)(struct audio_stream_out *out,
+                                      qahw_param_id param_id,
+                                      qahw_param_payload *payload);
+
 typedef struct {
     audio_hw_device_t *audio_device;
     char module_name[MAX_MODULE_NAME_LENGTH];
@@ -80,6 +88,8 @@
     qahw_module_t *module;
     struct listnode list;
     pthread_mutex_t lock;
+    qahwi_out_set_param_data_t qahwi_out_get_param_data;
+    qahwi_out_get_param_data_t qahwi_out_set_param_data;
 } qahw_stream_out_t;
 
 typedef struct {
@@ -397,6 +407,67 @@
     return str_param;
 }
 
+/* API to get playback stream specific config parameters */
+int qahw_out_set_param_data(qahw_stream_handle_t *out_handle,
+                            qahw_param_id param_id,
+                            qahw_param_payload *payload)
+{
+    int rc = -EINVAL;
+    qahw_stream_out_t *qahw_stream_out = (qahw_stream_out_t *)out_handle;
+    audio_stream_out_t *out = NULL;
+
+    if (!payload) {
+        ALOGE("%s::Invalid param", __func__);
+        goto exit;
+    }
+
+    if (!is_valid_qahw_stream((void *)qahw_stream_out, STREAM_DIR_OUT)) {
+        ALOGE("%s::Invalid out handle %p", __func__, out_handle);
+        goto exit;
+    }
+
+    pthread_mutex_lock(&qahw_stream_out->lock);
+    out = qahw_stream_out->stream;
+    if (qahw_stream_out->qahwi_out_set_param_data) {
+        rc = qahw_stream_out->qahwi_out_set_param_data(out, param_id, payload);
+    } else {
+        rc = -ENOSYS;
+        ALOGW("%s not supported", __func__);
+    }
+    pthread_mutex_unlock(&qahw_stream_out->lock);
+
+exit:
+    return rc;
+}
+
+/* API to get playback stream specific config parameters */
+int qahw_out_get_param_data(qahw_stream_handle_t *out_handle,
+                            qahw_param_id param_id,
+                            qahw_param_payload *payload)
+{
+    int rc = -EINVAL;
+    qahw_stream_out_t *qahw_stream_out = (qahw_stream_out_t *)out_handle;
+    audio_stream_out_t *out = NULL;
+
+    if (!is_valid_qahw_stream((void *)qahw_stream_out, STREAM_DIR_OUT)) {
+        ALOGE("%s::Invalid out handle %p", __func__, out_handle);
+        goto exit;
+    }
+
+    pthread_mutex_lock(&qahw_stream_out->lock);
+    out = qahw_stream_out->stream;
+    if (qahw_stream_out->qahwi_out_get_param_data) {
+        rc = qahw_stream_out->qahwi_out_get_param_data(out, param_id, payload);
+    } else {
+        rc = -ENOSYS;
+        ALOGW("%s not supported", __func__);
+    }
+    pthread_mutex_unlock(&qahw_stream_out->lock);
+
+exit:
+    return rc;
+}
+
 uint32_t qahw_out_get_latency(const qahw_stream_handle_t *out_handle)
 {
     uint32_t latency = 0;
@@ -1373,7 +1444,29 @@
         *out_handle = (void *)qahw_stream_out;
         pthread_mutex_init(&qahw_stream_out->lock, (const pthread_mutexattr_t *)NULL);
         list_add_tail(&qahw_module->out_list, &qahw_stream_out->list);
-    }
+
+        /* clear any existing errors */
+        const char *error;
+        dlerror();
+        qahw_stream_out->qahwi_out_get_param_data = (qahwi_out_get_param_data_t)
+                                                 dlsym(qahw_module->module->dso,
+                                                 "qahwi_out_get_param_data");
+        if ((error = dlerror()) != NULL) {
+            ALOGI("%s: dlsym error %s for qahwi_out_get_param_data",
+                   __func__, error);
+            qahw_stream_out->qahwi_out_get_param_data = NULL;
+        }
+
+        dlerror();
+        qahw_stream_out->qahwi_out_set_param_data = (qahwi_out_set_param_data_t)
+                                                 dlsym(qahw_module->module->dso,
+                                                 "qahwi_out_set_param_data");
+        if ((error = dlerror()) != NULL) {
+            ALOGI("%s: dlsym error %s for qahwi_out_set_param_data",
+                   __func__, error);
+            qahw_stream_out->qahwi_out_set_param_data = NULL;
+        }
+}
 
 exit:
     pthread_mutex_unlock(&qahw_module->lock);
diff --git a/qahw_api/test/qahw_playback_test.c b/qahw_api/test/qahw_playback_test.c
index b3e5291..71229c1 100644
--- a/qahw_api/test/qahw_playback_test.c
+++ b/qahw_api/test/qahw_playback_test.c
@@ -120,6 +120,11 @@
     struct wav_header hdr;
 };
 
+struct drift_data {
+    qahw_module_handle_t *out_handle;
+    volatile bool thread_exit;
+};
+
 typedef struct {
     qahw_module_handle_t *qahw_mod_handle;
     audio_io_handle_t handle;
@@ -137,6 +142,7 @@
     char *kvpair_values;
     bool flags_set;
     int effect_index;
+    bool drift_query;
     thread_func_t ethread_func;
     thread_data_t *ethread_data;
     cmd_data_t cmd_data;
@@ -152,8 +158,6 @@
 const char *log_filename = NULL;
 float vol_level = 0.01;
 struct proxy_data proxy_params;
-bool proxy_thread_active;
-pthread_t proxy_thread;
 pthread_t playback_thread[MAX_PLAYBACK_STREAMS];
 bool thread_active[MAX_PLAYBACK_STREAMS] = { false };
 
@@ -384,6 +388,30 @@
     return 0;
 }
 
+void *drift_read(void* data)
+{
+    struct drift_data* params = (struct drift_data*) data;
+    qahw_stream_handle_t* out_handle = params->out_handle;
+    struct qahw_avt_device_drift_param drift_param;
+    int rc = -EINVAL;
+
+    printf("drift quried at 100ms interval \n");
+    while (!(params->thread_exit)) {
+        memset(&drift_param, 0, sizeof(struct qahw_avt_device_drift_param));
+        rc = qahw_out_get_param_data(out_handle, QAHW_PARAM_AVT_DEVICE_DRIFT,
+                (qahw_param_payload *)&drift_param);
+        if (!rc) {
+            printf("resync flag = %d, drift %d, av timer %lld\n",
+                    drift_param.resync_flag,
+                    drift_param.avt_device_drift_value,
+                    drift_param.ref_timer_abs_ts);
+        } else {
+            printf("drift query failed rc = %d retry after 100ms\n", rc);
+        }
+
+        usleep(100000);
+    }
+}
 
 /* Entry point function for stream playback
  * Opens the stream
@@ -397,6 +425,12 @@
     int rc = 0;
     stream_config *params = (stream_config*) stream_data;
     const char* stream_name = "output_stream";
+    bool proxy_thread_active = false;
+    pthread_t proxy_thread;
+
+    bool drift_thread_active = false;
+    pthread_t drift_query_thread;
+    struct drift_data drift_params;
 
     if (params->output_device & AUDIO_DEVICE_OUT_ALL_A2DP)
         params->output_device = AUDIO_DEVICE_OUT_PROXY;
@@ -522,6 +556,17 @@
         rc = pthread_create(&proxy_thread, NULL, proxy_read, (void *)&proxy_params);
         if (!rc)
             proxy_thread_active = true;
+    } else if (params->drift_query &&
+              (params->output_device & AUDIO_DEVICE_OUT_HDMI) &&
+              !drift_thread_active) {
+        drift_params.out_handle = params->out_handle;
+        drift_params.thread_exit = false;
+        fprintf(log_file, "create thread to read avtime vs hdmi drift\n");
+        rc = pthread_create(&drift_query_thread, NULL, drift_read, (void *)&drift_params);
+        if (!rc)
+            drift_thread_active = true;
+        else
+            fprintf(log_file, "drift query thread creation failure %d\n", rc);
     }
 
     rc = qahw_out_set_volume(params->out_handle, vol_level, vol_level);
@@ -616,6 +661,11 @@
         pthread_join(proxy_thread, NULL);
     }
 
+    if (drift_thread_active) {
+        usleep(500000);
+        drift_params.thread_exit = true;
+        pthread_join(drift_query_thread, NULL);
+    }
     rc = qahw_out_standby(params->out_handle);
     if (rc) {
         fprintf(log_file, "stream %d: out standby failed %d \n", params->stream_index, rc);
@@ -974,6 +1024,7 @@
     printf(" -e  --effect-type <effect type>           - Effect used for test\n");
     printf("                                             0:bassboost 1:virtualizer 2:equalizer 3:visualizer(NA) 4:reverb 5:audiosphere others:null\n\n");
     printf(" -A  --bt-addr <bt device addr>            - Required to set bt device adress for aptx decoder\n\n");
+    printf(" -q  --query drift                         - Required for querying avtime vs hdmi drift\n");
     printf(" -P                                        - Argument to do multi-stream playback, currently 2 streams are supported to run concurrently\n");
     printf("                                             Put -P and mention required attributes for the next stream\n");
     printf(" \n Examples \n");
@@ -1072,7 +1123,6 @@
     int i = 0;
     int j = 0;
     kpi_mode = false;
-    proxy_thread_active = false;
 
     log_file = stdout;
     proxy_params.acp.file_name = "/data/pcm_dump.wav";
@@ -1099,6 +1149,7 @@
         {"plus",          no_argument,          0, 'P'},
         {"effect-path",   required_argument,    0, 'e'},
         {"bt-addr",       required_argument,    0, 'A'},
+        {"query drift",   no_argument,          0, 'q'},
         {"help",          no_argument,          0, 'h'},
         {0, 0, 0, 0}
     };
@@ -1122,7 +1173,7 @@
 
     while ((opt = getopt_long(argc,
                               argv,
-                              "-f:r:c:b:d:v:l:t:a:w:k:PD:KF:e:A:h",
+                              "-f:r:c:b:d:v:l:t:a:w:k:PD:KF:e:A:qh",
                               long_options,
                               &option_index)) != -1) {
 
@@ -1198,6 +1249,9 @@
         case 'A':
             ba = optarg;
             break;
+        case 'q':
+             stream_param[i].drift_query = true;
+             break;
         case 'P':
             if(i >= MAX_PLAYBACK_STREAMS - 1) {
                 fprintf(log_file, "cannot have more than %d streams\n", MAX_PLAYBACK_STREAMS);