diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index 3602e94..1da61b8 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -322,6 +322,26 @@
     return NO_ERROR;
 }
 
+status_t AudioSystem::setPortsVolume(
+        const std::vector<audio_port_handle_t>& portIds, float volume, audio_io_handle_t output) {
+    for (const auto& port : portIds) {
+        if (port == AUDIO_PORT_HANDLE_NONE) {
+            return BAD_VALUE;
+        }
+    }
+    if (isnan(volume) || volume > 1.0f || volume < 0.0f) {
+        return BAD_VALUE;
+    }
+    const sp<IAudioFlinger> af = get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    std::vector<int32_t> portIdsAidl = VALUE_OR_RETURN_STATUS(
+            convertContainer<std::vector<int32_t>>(
+                    portIds, legacy2aidl_audio_port_handle_t_int32_t));
+    int32_t outputAidl = VALUE_OR_RETURN_STATUS(legacy2aidl_audio_io_handle_t_int32_t(output));
+    af->setPortsVolume(portIdsAidl, volume, outputAidl);
+    return NO_ERROR;
+}
+
 status_t AudioSystem::setMode(audio_mode_t mode) {
     if (uint32_t(mode) >= AUDIO_MODE_CNT) return BAD_VALUE;
     const sp<IAudioFlinger> af = get_audio_flinger();
@@ -1081,7 +1101,8 @@
                                        audio_port_handle_t* portId,
                                        std::vector<audio_io_handle_t>* secondaryOutputs,
                                        bool *isSpatialized,
-                                       bool *isBitPerfect) {
+                                       bool *isBitPerfect,
+                                       float *volume) {
     if (attr == nullptr) {
         ALOGE("%s NULL audio attributes", __func__);
         return BAD_VALUE;
@@ -1147,6 +1168,7 @@
     *isBitPerfect = responseAidl.isBitPerfect;
     *attr = VALUE_OR_RETURN_STATUS(
             aidl2legacy_AudioAttributes_audio_attributes_t(responseAidl.attr));
+    *volume = responseAidl.volume;
 
     return OK;
 }