diff --git a/media/libaudiofoundation/Android.bp b/media/libaudiofoundation/Android.bp
index 9b9f12f..10f3e67 100644
--- a/media/libaudiofoundation/Android.bp
+++ b/media/libaudiofoundation/Android.bp
@@ -9,6 +9,7 @@
     vendor_available: true,
 
     srcs: [
+        "AudioContainers.cpp",
         "AudioGain.cpp",
         "AudioPort.cpp",
         "AudioProfile.cpp",
diff --git a/media/libaudiofoundation/AudioContainers.cpp b/media/libaudiofoundation/AudioContainers.cpp
new file mode 100644
index 0000000..adc5d40
--- /dev/null
+++ b/media/libaudiofoundation/AudioContainers.cpp
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <sstream>
+#include <string>
+
+#include <media/AudioContainers.h>
+
+namespace android {
+
+const DeviceTypeSet& getAudioDeviceOutAllSet() {
+    static const DeviceTypeSet audioDeviceOutAllSet = DeviceTypeSet(
+            std::begin(AUDIO_DEVICE_OUT_ALL_ARRAY),
+            std::end(AUDIO_DEVICE_OUT_ALL_ARRAY));
+    return audioDeviceOutAllSet;
+}
+
+const DeviceTypeSet& getAudioDeviceOutAllA2dpSet() {
+    static const DeviceTypeSet audioDeviceOutAllA2dpSet = DeviceTypeSet(
+            std::begin(AUDIO_DEVICE_OUT_ALL_A2DP_ARRAY),
+            std::end(AUDIO_DEVICE_OUT_ALL_A2DP_ARRAY));
+    return audioDeviceOutAllA2dpSet;
+}
+
+const DeviceTypeSet& getAudioDeviceOutAllScoSet() {
+    static const DeviceTypeSet audioDeviceOutAllScoSet = DeviceTypeSet(
+            std::begin(AUDIO_DEVICE_OUT_ALL_SCO_ARRAY),
+            std::end(AUDIO_DEVICE_OUT_ALL_SCO_ARRAY));
+    return audioDeviceOutAllScoSet;
+}
+
+const DeviceTypeSet& getAudioDeviceInAllSet() {
+    static const DeviceTypeSet audioDeviceInAllSet = DeviceTypeSet(
+            std::begin(AUDIO_DEVICE_IN_ALL_ARRAY),
+            std::end(AUDIO_DEVICE_IN_ALL_ARRAY));
+    return audioDeviceInAllSet;
+}
+
+bool deviceTypesToString(const DeviceTypeSet &deviceTypes, std::string &str) {
+    bool ret = true;
+    for (auto it = deviceTypes.begin(); it != deviceTypes.end();) {
+        std::string deviceTypeStr;
+        ret = audio_is_output_device(*it) ?
+              OutputDeviceConverter::toString(*it, deviceTypeStr) :
+              InputDeviceConverter::toString(*it, deviceTypeStr);
+        if (!ret) {
+            break;
+        }
+        str.append(deviceTypeStr);
+        if (++it != deviceTypes.end()) {
+            str.append(" , ");
+        }
+    }
+    if (!ret) {
+        str = "Unknown values";
+    }
+    return ret;
+}
+
+std::string dumpDeviceTypes(const DeviceTypeSet &deviceTypes) {
+    std::string ret;
+    for (auto it = deviceTypes.begin(); it != deviceTypes.end();) {
+        std::stringstream ss;
+        ss << "0x" << std::hex << (*it);
+        ret.append(ss.str());
+        if (++it != deviceTypes.end()) {
+            ret.append(" , ");
+        }
+    }
+    return ret;
+}
+
+} // namespace android
diff --git a/media/libaudiofoundation/include/media/AudioContainers.h b/media/libaudiofoundation/include/media/AudioContainers.h
index 3313224..8347c71 100644
--- a/media/libaudiofoundation/include/media/AudioContainers.h
+++ b/media/libaudiofoundation/include/media/AudioContainers.h
@@ -16,19 +16,37 @@
 
 #pragma once
 
+#include <algorithm>
+#include <iterator>
 #include <set>
 #include <vector>
 
+#include <media/TypeConverter.h>
 #include <system/audio.h>
 
 namespace android {
 
 using ChannelMaskSet = std::set<audio_channel_mask_t>;
+using DeviceTypeSet = std::set<audio_devices_t>;
 using FormatSet = std::set<audio_format_t>;
 using SampleRateSet = std::set<uint32_t>;
 
 using FormatVector = std::vector<audio_format_t>;
 
+const DeviceTypeSet& getAudioDeviceOutAllSet();
+const DeviceTypeSet& getAudioDeviceOutAllA2dpSet();
+const DeviceTypeSet& getAudioDeviceOutAllScoSet();
+const DeviceTypeSet& getAudioDeviceInAllSet();
+
+template<typename T>
+static std::vector<T> Intersection(const std::set<T>& a, const std::set<T>& b) {
+    std::vector<T> intersection;
+    std::set_intersection(a.begin(), a.end(),
+                          b.begin(), b.end(),
+                          std::back_inserter(intersection));
+    return intersection;
+}
+
 static inline ChannelMaskSet asInMask(const ChannelMaskSet& channelMasks) {
     ChannelMaskSet inMaskSet;
     for (const auto &channel : channelMasks) {
@@ -49,4 +67,55 @@
     return outMaskSet;
 }
 
+static inline bool isSingleDeviceType(const DeviceTypeSet& deviceTypes,
+                                      audio_devices_t deviceType) {
+    return deviceTypes.size() == 1 && *(deviceTypes.begin()) == deviceType;
+}
+
+typedef bool (*DeviceTypeUnaryPredicate)(audio_devices_t);
+static inline bool isSingleDeviceType(const DeviceTypeSet& deviceTypes,
+                                      DeviceTypeUnaryPredicate p) {
+    return deviceTypes.size() == 1 && p(*(deviceTypes.begin()));
+}
+
+static inline void resetDeviceTypes(DeviceTypeSet& deviceTypes, audio_devices_t typeToAdd) {
+    deviceTypes.clear();
+    deviceTypes.insert(typeToAdd);
+}
+
+// FIXME: This is temporary helper function. Remove this when getting rid of all
+//  bit mask usages of audio device types.
+static inline audio_devices_t deviceTypesToBitMask(const DeviceTypeSet& deviceTypes) {
+    audio_devices_t types = AUDIO_DEVICE_NONE;
+    for (auto deviceType : deviceTypes) {
+        types |= deviceType;
+    }
+    return types;
+}
+
+// FIXME: This is temporary helper function. Remove this when getting rid of all
+//  bit mask usages of audio device types.
+static inline DeviceTypeSet deviceTypesFromBitMask(audio_devices_t types) {
+    DeviceTypeSet deviceTypes;
+    if ((types & AUDIO_DEVICE_BIT_IN) == 0) {
+        for (auto deviceType : AUDIO_DEVICE_OUT_ALL_ARRAY) {
+            if ((types & deviceType) == deviceType) {
+                deviceTypes.insert(deviceType);
+            }
+        }
+    } else {
+        for (auto deviceType : AUDIO_DEVICE_IN_ALL_ARRAY) {
+            if ((types & deviceType) == deviceType) {
+                deviceTypes.insert(deviceType);
+            }
+        }
+    }
+    return deviceTypes;
+}
+
+bool deviceTypesToString(const DeviceTypeSet& deviceTypes, std::string &str);
+
+std::string dumpDeviceTypes(const DeviceTypeSet& deviceTypes);
+
+
 } // namespace android
\ No newline at end of file
diff --git a/services/audiopolicy/common/Android.bp b/services/audiopolicy/common/Android.bp
index a925b9a..6e0d2f6 100644
--- a/services/audiopolicy/common/Android.bp
+++ b/services/audiopolicy/common/Android.bp
@@ -1,4 +1,7 @@
 cc_library_headers {
     name: "libaudiopolicycommon",
+    header_libs: [
+        "libaudiofoundation_headers",
+    ],
     export_include_dirs: ["include"],
 }
diff --git a/services/audiopolicy/common/include/Volume.h b/services/audiopolicy/common/include/Volume.h
index 1dbd1eb..c3a02f9 100644
--- a/services/audiopolicy/common/include/Volume.h
+++ b/services/audiopolicy/common/include/Volume.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include <media/AudioCommonTypes.h>
+#include <media/AudioContainers.h>
 #include <system/audio.h>
 #include <utils/Log.h>
 #include <math.h>
@@ -82,43 +83,55 @@
      *
      * @return subset of device required to limit the number of volume category per device
      */
-    static audio_devices_t getDeviceForVolume(audio_devices_t device)
+    static audio_devices_t getDeviceForVolume(const android::DeviceTypeSet& deviceTypes)
     {
-        if (device == AUDIO_DEVICE_NONE) {
+        audio_devices_t deviceType = AUDIO_DEVICE_NONE;
+        if (deviceTypes.empty()) {
             // this happens when forcing a route update and no track is active on an output.
             // In this case the returned category is not important.
-            device =  AUDIO_DEVICE_OUT_SPEAKER;
-        } else if (popcount(device) > 1) {
+            deviceType = AUDIO_DEVICE_OUT_SPEAKER;
+        } else if (deviceTypes.size() > 1) {
             // Multiple device selection is either:
             //  - speaker + one other device: give priority to speaker in this case.
             //  - one A2DP device + another device: happens with duplicated output. In this case
             // retain the device on the A2DP output as the other must not correspond to an active
             // selection if not the speaker.
             //  - HDMI-CEC system audio mode only output: give priority to available item in order.
-            if (device & AUDIO_DEVICE_OUT_SPEAKER) {
-                device = AUDIO_DEVICE_OUT_SPEAKER;
-            } else if (device & AUDIO_DEVICE_OUT_SPEAKER_SAFE) {
-                device = AUDIO_DEVICE_OUT_SPEAKER_SAFE;
-            } else if (device & AUDIO_DEVICE_OUT_HDMI_ARC) {
-                device = AUDIO_DEVICE_OUT_HDMI_ARC;
-            } else if (device & AUDIO_DEVICE_OUT_AUX_LINE) {
-                device = AUDIO_DEVICE_OUT_AUX_LINE;
-            } else if (device & AUDIO_DEVICE_OUT_SPDIF) {
-                device = AUDIO_DEVICE_OUT_SPDIF;
+            if (deviceTypes.count(AUDIO_DEVICE_OUT_SPEAKER) != 0) {
+                deviceType = AUDIO_DEVICE_OUT_SPEAKER;
+            } else if (deviceTypes.count(AUDIO_DEVICE_OUT_SPEAKER_SAFE) != 0) {
+                deviceType = AUDIO_DEVICE_OUT_SPEAKER_SAFE;
+            } else if (deviceTypes.count(AUDIO_DEVICE_OUT_HDMI_ARC) != 0) {
+                deviceType = AUDIO_DEVICE_OUT_HDMI_ARC;
+            } else if (deviceTypes.count(AUDIO_DEVICE_OUT_AUX_LINE) != 0) {
+                deviceType = AUDIO_DEVICE_OUT_AUX_LINE;
+            } else if (deviceTypes.count(AUDIO_DEVICE_OUT_SPDIF) != 0) {
+                deviceType = AUDIO_DEVICE_OUT_SPDIF;
             } else {
-                device = (audio_devices_t)(device & AUDIO_DEVICE_OUT_ALL_A2DP);
+                std::vector<audio_devices_t> a2dpDevices = android::Intersection(
+                        deviceTypes, android::getAudioDeviceOutAllA2dpSet());
+                if (a2dpDevices.size() > 1) {
+                    ALOGW("getDeviceForVolume() invalid device combination: %s",
+                          android::dumpDeviceTypes(deviceTypes).c_str());
+                }
+                if (!a2dpDevices.empty()) {
+                    deviceType = a2dpDevices[0];
+                }
             }
+        } else {
+            deviceType = *(deviceTypes.begin());
         }
 
         /*SPEAKER_SAFE is an alias of SPEAKER for purposes of volume control*/
-        if (device == AUDIO_DEVICE_OUT_SPEAKER_SAFE)
-            device = AUDIO_DEVICE_OUT_SPEAKER;
+        if (deviceType == AUDIO_DEVICE_OUT_SPEAKER_SAFE) {
+            deviceType = AUDIO_DEVICE_OUT_SPEAKER;
+        }
 
-        ALOGW_IF(popcount(device) != 1,
-                 "getDeviceForVolume() invalid device combination: %08x",
-                 device);
+        ALOGW_IF(deviceType == AUDIO_DEVICE_NONE,
+                 "getDeviceForVolume() invalid device combination: %s, returning AUDIO_DEVICE_NONE",
+                 android::dumpDeviceTypes(deviceTypes).c_str());
 
-        return device;
+        return deviceType;
     }
 
     /**
@@ -128,9 +141,9 @@
      *
      * @return device category.
      */
-    static device_category getDeviceCategory(audio_devices_t device)
+    static device_category getDeviceCategory(const android::DeviceTypeSet& deviceTypes)
     {
-        switch(getDeviceForVolume(device)) {
+        switch(getDeviceForVolume(deviceTypes)) {
         case AUDIO_DEVICE_OUT_EARPIECE:
             return DEVICE_CATEGORY_EARPIECE;
         case AUDIO_DEVICE_OUT_WIRED_HEADSET:
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
index 96fec4a..41f7dfc 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
@@ -21,6 +21,7 @@
 
 #include <sys/types.h>
 
+#include <media/AudioContainers.h>
 #include <utils/Errors.h>
 #include <utils/Timers.h>
 #include <utils/KeyedVector.h>
@@ -156,10 +157,10 @@
     virtual DeviceVector supportedDevices() const  { return mDevices; }
     virtual bool isDuplicated() const { return false; }
     virtual uint32_t latency() { return 0; }
-    virtual bool isFixedVolume(audio_devices_t device);
+    virtual bool isFixedVolume(const DeviceTypeSet& deviceTypes);
     virtual bool setVolume(float volumeDb,
                            VolumeSource volumeSource, const StreamTypeVector &streams,
-                           audio_devices_t device,
+                           const DeviceTypeSet& deviceTypes,
                            uint32_t delayMs,
                            bool force);
 
@@ -329,10 +330,10 @@
     void setDevices(const DeviceVector &devices) { mDevices = devices; }
     bool sharesHwModuleWith(const sp<SwAudioOutputDescriptor>& outputDesc);
     virtual DeviceVector supportedDevices() const;
-    virtual bool deviceSupportsEncodedFormats(audio_devices_t device);
+    virtual bool devicesSupportEncodedFormats(const DeviceTypeSet& deviceTypes);
     virtual uint32_t latency();
     virtual bool isDuplicated() const { return (mOutput1 != NULL && mOutput2 != NULL); }
-    virtual bool isFixedVolume(audio_devices_t device);
+    virtual bool isFixedVolume(const DeviceTypeSet& deviceTypes);
     sp<SwAudioOutputDescriptor> subOutput1() { return mOutput1; }
     sp<SwAudioOutputDescriptor> subOutput2() { return mOutput2; }
     void setClientActive(const sp<TrackClientDescriptor>& client, bool active) override;
@@ -344,7 +345,7 @@
     }
     virtual bool setVolume(float volumeDb,
                            VolumeSource volumeSource, const StreamTypeVector &streams,
-                           audio_devices_t device,
+                           const DeviceTypeSet& device,
                            uint32_t delayMs,
                            bool force);
 
@@ -418,7 +419,7 @@
 
     virtual bool setVolume(float volumeDb,
                            VolumeSource volumeSource, const StreamTypeVector &streams,
-                           audio_devices_t device,
+                           const DeviceTypeSet& deviceTypes,
                            uint32_t delayMs,
                            bool force);
 
diff --git a/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
index eb1bfa7..158215d 100644
--- a/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include "PolicyAudioPort.h"
+#include <media/AudioContainers.h>
 #include <media/DeviceDescriptorBase.h>
 #include <utils/Errors.h>
 #include <utils/String8.h>
@@ -93,7 +94,7 @@
 class DeviceVector : public SortedVector<sp<DeviceDescriptor> >
 {
 public:
-    DeviceVector() : SortedVector(), mDeviceTypes(AUDIO_DEVICE_NONE) {}
+    DeviceVector() : SortedVector() {}
     explicit DeviceVector(const sp<DeviceDescriptor>& item) : DeviceVector()
     {
         add(item);
@@ -105,13 +106,16 @@
     void remove(const DeviceVector &devices);
     ssize_t indexOf(const sp<DeviceDescriptor>& item) const;
 
-    audio_devices_t types() const { return mDeviceTypes; }
+    DeviceTypeSet types() const { return mDeviceTypes; }
 
     // If 'address' is empty and 'codec' is AUDIO_FORMAT_DEFAULT, a device with a non-empty
     // address may be returned if there is no device with the specified 'type' and empty address.
     sp<DeviceDescriptor> getDevice(audio_devices_t type, const String8 &address,
                                    audio_format_t codec) const;
-    DeviceVector getDevicesFromTypeMask(audio_devices_t types) const;
+    DeviceVector getDevicesFromTypes(const DeviceTypeSet& types) const;
+    DeviceVector getDevicesFromType(audio_devices_t type) const {
+        return getDevicesFromTypes({type});
+    }
 
     /**
      * @brief getDeviceFromId
@@ -122,7 +126,6 @@
     sp<DeviceDescriptor> getDeviceFromId(audio_port_handle_t id) const;
     sp<DeviceDescriptor> getDeviceFromTagName(const std::string &tagName) const;
     DeviceVector getDevicesFromHwModule(audio_module_handle_t moduleHandle) const;
-    audio_devices_t getDeviceTypesFromHwModule(audio_module_handle_t moduleHandle) const;
 
     DeviceVector getFirstDevicesFromTypes(std::vector<audio_devices_t> orderedTypes) const;
     sp<DeviceDescriptor> getFirstExistingDevice(std::vector<audio_devices_t> orderedTypes) const;
@@ -131,6 +134,18 @@
     // remove all the devices with the given type and add all the devices to add.
     void replaceDevicesByType(audio_devices_t typeToRemove, const DeviceVector &devicesToAdd);
 
+    bool containsDeviceAmongTypes(const DeviceTypeSet& deviceTypes) const {
+        return !Intersection(mDeviceTypes, deviceTypes).empty();
+    }
+
+    bool containsDeviceWithType(audio_devices_t deviceType) const {
+        return containsDeviceAmongTypes({deviceType});
+    }
+
+    bool onlyContainsDevicesWithType(audio_devices_t deviceType) const {
+        return isSingleDeviceType(mDeviceTypes, deviceType);
+    }
+
     bool contains(const sp<DeviceDescriptor>& item) const { return indexOf(item) >= 0; }
 
     /**
@@ -223,7 +238,7 @@
 
 private:
     void refreshTypes();
-    audio_devices_t mDeviceTypes;
+    DeviceTypeSet mDeviceTypes;
 };
 
 } // namespace android
diff --git a/services/audiopolicy/common/managerdefinitions/include/HwModule.h b/services/audiopolicy/common/managerdefinitions/include/HwModule.h
index 028cb63..23f0c9a 100644
--- a/services/audiopolicy/common/managerdefinitions/include/HwModule.h
+++ b/services/audiopolicy/common/managerdefinitions/include/HwModule.h
@@ -131,8 +131,8 @@
 public:
     sp<HwModule> getModuleFromName(const char *name) const;
 
-    sp<HwModule> getModuleForDeviceTypes(audio_devices_t device,
-                                         audio_format_t encodedFormat) const;
+    sp<HwModule> getModuleForDeviceType(audio_devices_t device,
+                                        audio_format_t encodedFormat) const;
 
     sp<HwModule> getModuleForDevice(const sp<DeviceDescriptor> &device,
                                     audio_format_t encodedFormat) const;
diff --git a/services/audiopolicy/common/managerdefinitions/include/IOProfile.h b/services/audiopolicy/common/managerdefinitions/include/IOProfile.h
index dcb4730..2044863 100644
--- a/services/audiopolicy/common/managerdefinitions/include/IOProfile.h
+++ b/services/audiopolicy/common/managerdefinitions/include/IOProfile.h
@@ -19,6 +19,7 @@
 #include "DeviceDescriptor.h"
 #include "PolicyAudioPort.h"
 #include "policy.h"
+#include <media/AudioContainers.h>
 #include <utils/String8.h>
 #include <system/audio.h>
 
@@ -102,15 +103,12 @@
 
     bool hasSupportedDevices() const { return !mSupportedDevices.isEmpty(); }
 
-    bool supportsDeviceTypes(audio_devices_t device) const
+    bool supportsDeviceTypes(const DeviceTypeSet& deviceTypes) const
     {
-        if (audio_is_output_devices(device)) {
-            if (deviceSupportsEncodedFormats(device)) {
-                return mSupportedDevices.types() & device;
-            }
-            return false;
-        }
-        return mSupportedDevices.types() & (device & ~AUDIO_DEVICE_BIT_IN);
+        const bool areOutputDevices = Intersection(deviceTypes, getAudioDeviceInAllSet()).empty();
+        const bool devicesSupported = !mSupportedDevices.getDevicesFromTypes(deviceTypes).empty();
+        return devicesSupported &&
+               (!areOutputDevices || devicesSupportEncodedFormats(deviceTypes));
     }
 
     /**
@@ -125,18 +123,18 @@
     bool supportsDevice(const sp<DeviceDescriptor> &device, bool forceCheckOnAddress = false) const
     {
         if (!device_distinguishes_on_address(device->type()) && !forceCheckOnAddress) {
-            return supportsDeviceTypes(device->type());
+            return supportsDeviceTypes(DeviceTypeSet({device->type()}));
         }
         return mSupportedDevices.contains(device);
     }
 
-    bool deviceSupportsEncodedFormats(audio_devices_t device) const
+    bool devicesSupportEncodedFormats(DeviceTypeSet deviceTypes) const
     {
-        if (device == AUDIO_DEVICE_NONE) {
+        if (deviceTypes.empty()) {
             return true; // required for isOffloadSupported() check
         }
         DeviceVector deviceList =
-            mSupportedDevices.getDevicesFromTypeMask(device);
+            mSupportedDevices.getDevicesFromTypes(deviceTypes);
         if (!deviceList.empty()) {
             return deviceList.itemAt(0)->hasCurrentEncodedFormat();
         }
diff --git a/services/audiopolicy/common/managerdefinitions/include/IVolumeCurves.h b/services/audiopolicy/common/managerdefinitions/include/IVolumeCurves.h
index d408446..fd8b81a 100644
--- a/services/audiopolicy/common/managerdefinitions/include/IVolumeCurves.h
+++ b/services/audiopolicy/common/managerdefinitions/include/IVolumeCurves.h
@@ -16,8 +16,9 @@
 
 #pragma once
 
-#include <system/audio.h>
 #include <Volume.h>
+#include <media/AudioContainers.h>
+#include <system/audio.h>
 #include <utils/Errors.h>
 #include <utils/String8.h>
 #include <vector>
@@ -33,7 +34,7 @@
     virtual void addCurrentVolumeIndex(audio_devices_t device, int index) = 0;
     virtual bool canBeMuted() const = 0;
     virtual int getVolumeIndexMin() const = 0;
-    virtual int getVolumeIndex(audio_devices_t device) const = 0;
+    virtual int getVolumeIndex(const DeviceTypeSet& device) const = 0;
     virtual int getVolumeIndexMax() const = 0;
     virtual float volIndexToDb(device_category device, int indexInUi) const = 0;
     virtual bool hasVolumeIndexForDevice(audio_devices_t device) const = 0;
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
index 00000fe..4ff69ee 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
@@ -30,10 +30,11 @@
 
 // A device mask for all audio output devices that are considered "remote" when evaluating
 // active output devices in isStreamActiveRemotely()
-#define APM_AUDIO_OUT_DEVICE_REMOTE_ALL  AUDIO_DEVICE_OUT_REMOTE_SUBMIX
 
 namespace android {
 
+DeviceTypeSet APM_AUDIO_OUT_DEVICE_REMOTE_ALL = {AUDIO_DEVICE_OUT_REMOTE_SUBMIX};
+
 AudioOutputDescriptor::AudioOutputDescriptor(const sp<PolicyAudioPort>& policyAudioPort,
                                              AudioPolicyClientInterface *clientInterface)
     : mPolicyAudioPort(policyAudioPort), mClientInterface(clientInterface)
@@ -140,7 +141,7 @@
     return false;
 }
 
-bool AudioOutputDescriptor::isFixedVolume(audio_devices_t device __unused)
+bool AudioOutputDescriptor::isFixedVolume(const DeviceTypeSet& deviceTypes __unused)
 {
     return false;
 }
@@ -148,7 +149,7 @@
 bool AudioOutputDescriptor::setVolume(float volumeDb,
                                       VolumeSource volumeSource,
                                       const StreamTypeVector &/*streams*/,
-                                      audio_devices_t /*device*/,
+                                      const DeviceTypeSet& /*deviceTypes*/,
                                       uint32_t delayMs,
                                       bool force)
 {
@@ -334,13 +335,13 @@
     return filteredDevices.filter(devices);
 }
 
-bool SwAudioOutputDescriptor::deviceSupportsEncodedFormats(audio_devices_t device)
+bool SwAudioOutputDescriptor::devicesSupportEncodedFormats(const DeviceTypeSet& deviceTypes)
 {
     if (isDuplicated()) {
-        return (mOutput1->deviceSupportsEncodedFormats(device)
-                    || mOutput2->deviceSupportsEncodedFormats(device));
+        return (mOutput1->devicesSupportEncodedFormats(deviceTypes)
+                    || mOutput2->devicesSupportEncodedFormats(deviceTypes));
     } else {
-       return mProfile->deviceSupportsEncodedFormats(device);
+       return mProfile->devicesSupportEncodedFormats(deviceTypes);
     }
 }
 
@@ -363,16 +364,16 @@
     AudioOutputDescriptor::setClientActive(client, active);
 }
 
-bool SwAudioOutputDescriptor::isFixedVolume(audio_devices_t device)
+bool SwAudioOutputDescriptor::isFixedVolume(const DeviceTypeSet& deviceTypes)
 {
     // unit gain if rerouting to external policy
-    if (device == AUDIO_DEVICE_OUT_REMOTE_SUBMIX) {
+    if (isSingleDeviceType(deviceTypes, AUDIO_DEVICE_OUT_REMOTE_SUBMIX)) {
         if (mPolicyMix != NULL) {
             ALOGV("max gain when rerouting for output=%d", mIoHandle);
             return true;
         }
     }
-    if (device == AUDIO_DEVICE_OUT_TELEPHONY_TX) {
+    if (isSingleDeviceType(deviceTypes, AUDIO_DEVICE_OUT_TELEPHONY_TX)) {
         ALOGV("max gain when output device is telephony tx");
         return true;
     }
@@ -405,12 +406,12 @@
 
 bool SwAudioOutputDescriptor::setVolume(float volumeDb,
                                         VolumeSource vs, const StreamTypeVector &streamTypes,
-                                        audio_devices_t device,
+                                        const DeviceTypeSet& deviceTypes,
                                         uint32_t delayMs,
                                         bool force)
 {
     StreamTypeVector streams = streamTypes;
-    if (!AudioOutputDescriptor::setVolume(volumeDb, vs, streamTypes, device, delayMs, force)) {
+    if (!AudioOutputDescriptor::setVolume(volumeDb, vs, streamTypes, deviceTypes, delayMs, force)) {
         return false;
     }
     if (streams.empty()) {
@@ -420,7 +421,7 @@
         // APM loops on all group, so filter on active group to set the port gain,
         // let the other groups set the stream volume as per legacy
         // TODO: Pass in the device address and check against it.
-        if (device == devicePort->type() &&
+        if (isSingleDeviceType(deviceTypes, devicePort->type()) &&
                 devicePort->hasGainController(true) && isActive(vs)) {
             ALOGV("%s: device %s has gain controller", __func__, devicePort->toString().c_str());
             // @todo: here we might be in trouble if the SwOutput has several active clients with
@@ -467,7 +468,7 @@
 {
     mDevices = devices;
     const String8& address = devices.getFirstValidAddress();
-    audio_devices_t device = devices.types();
+    DeviceTypeSet deviceTypes = devices.types();
 
     audio_config_t lConfig;
     if (config == nullptr) {
@@ -499,21 +500,25 @@
     ALOGV("opening output for device %s profile %p name %s",
           mDevices.toString().c_str(), mProfile.get(), mProfile->getName().c_str());
 
+    // FIXME: Stop using device types as bit mask when the interface updated.
+    audio_devices_t deviceType = deviceTypesToBitMask(deviceTypes);
     status_t status = mClientInterface->openOutput(mProfile->getModuleHandle(),
                                                    output,
                                                    &lConfig,
-                                                   &device,
+                                                   &deviceType,
                                                    address,
                                                    &mLatency,
                                                    mFlags);
-    LOG_ALWAYS_FATAL_IF(mDevices.types() != device,
-                        "%s openOutput returned device %08x when given device %08x",
-                        __FUNCTION__, mDevices.types(), device);
+    deviceTypes = deviceTypesFromBitMask(deviceType);
+    LOG_ALWAYS_FATAL_IF(mDevices.types() != deviceTypes,
+                        "%s openOutput returned device %s when given device %s",
+                        __FUNCTION__, dumpDeviceTypes(mDevices.types()).c_str(),
+                        dumpDeviceTypes(deviceTypes).c_str());
 
     if (status == NO_ERROR) {
         LOG_ALWAYS_FATAL_IF(*output == AUDIO_IO_HANDLE_NONE,
-                            "%s openOutput returned output handle %d for device %08x",
-                            __FUNCTION__, *output, device);
+                            "%s openOutput returned output handle %d for device %s",
+                            __FUNCTION__, *output, dumpDeviceTypes(deviceTypes).c_str());
         mSamplingRate = lConfig.sample_rate;
         mChannelMask = lConfig.channel_mask;
         mFormat = lConfig.format;
@@ -646,12 +651,12 @@
 
 bool HwAudioOutputDescriptor::setVolume(float volumeDb,
                                         VolumeSource volumeSource, const StreamTypeVector &streams,
-                                        audio_devices_t device,
+                                        const DeviceTypeSet& deviceTypes,
                                         uint32_t delayMs,
                                         bool force)
 {
-    bool changed =
-        AudioOutputDescriptor::setVolume(volumeDb, volumeSource, streams, device, delayMs, force);
+    bool changed = AudioOutputDescriptor::setVolume(
+            volumeDb, volumeSource, streams, deviceTypes, delayMs, force);
 
     if (changed) {
       // TODO: use gain controller on source device if any to adjust volume
@@ -678,7 +683,8 @@
     for (size_t i = 0; i < this->size(); i++) {
         const sp<SwAudioOutputDescriptor> outputDesc = this->valueAt(i);
         if (outputDesc->isActive(volumeSource, inPastMs, sysTime)
-                && ((outputDesc->devices().types() & APM_AUDIO_OUT_DEVICE_REMOTE_ALL) == 0)) {
+                && (!(outputDesc->devices()
+                        .containsDeviceAmongTypes(APM_AUDIO_OUT_DEVICE_REMOTE_ALL)))) {
             return true;
         }
     }
@@ -690,7 +696,7 @@
     nsecs_t sysTime = systemTime();
     for (size_t i = 0; i < size(); i++) {
         const sp<SwAudioOutputDescriptor> outputDesc = valueAt(i);
-        if (((outputDesc->devices().types() & APM_AUDIO_OUT_DEVICE_REMOTE_ALL) != 0) &&
+        if (outputDesc->devices().containsDeviceAmongTypes(APM_AUDIO_OUT_DEVICE_REMOTE_ALL) &&
                 outputDesc->isActive(volumeSource, inPastMs, sysTime)) {
             // do not consider re routing (when the output is going to a dynamic policy)
             // as "remote playback"
@@ -721,9 +727,8 @@
     for (size_t i = 0; i < size(); i++) {
         sp<SwAudioOutputDescriptor> outputDesc = valueAt(i);
         if (!outputDesc->isDuplicated() &&
-             outputDesc->devices().types()  & AUDIO_DEVICE_OUT_ALL_A2DP &&
-             outputDesc->deviceSupportsEncodedFormats(
-                     AUDIO_DEVICE_OUT_BLUETOOTH_A2DP)) {
+             outputDesc->devices().containsDeviceAmongTypes(getAudioDeviceOutAllA2dpSet()) &&
+             outputDesc->devicesSupportEncodedFormats(getAudioDeviceOutAllA2dpSet())) {
             return this->keyAt(i);
         }
     }
@@ -739,7 +744,7 @@
         sp<HwModule> primaryHwModule = primaryOutput->mProfile->getModule();
 
         for (const auto &outputProfile : primaryHwModule->getOutputProfiles()) {
-            if (outputProfile->supportsDeviceTypes(AUDIO_DEVICE_OUT_ALL_A2DP)) {
+            if (outputProfile->supportsDeviceTypes(getAudioDeviceOutAllA2dpSet())) {
                 return true;
             }
         }
diff --git a/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
index 3d3eb9c..4e8c01c 100644
--- a/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
@@ -164,11 +164,11 @@
 
 void DeviceVector::refreshTypes()
 {
-    mDeviceTypes = AUDIO_DEVICE_NONE;
+    mDeviceTypes.clear();
     for (size_t i = 0; i < size(); i++) {
-        mDeviceTypes |= itemAt(i)->type();
+        mDeviceTypes.insert(itemAt(i)->type());
     }
-    ALOGV("DeviceVector::refreshTypes() mDeviceTypes %08x", mDeviceTypes);
+    ALOGV("DeviceVector::refreshTypes() mDeviceTypes %s", dumpDeviceTypes(mDeviceTypes).c_str());
 }
 
 ssize_t DeviceVector::indexOf(const sp<DeviceDescriptor>& item) const
@@ -243,17 +243,6 @@
     return devices;
 }
 
-audio_devices_t DeviceVector::getDeviceTypesFromHwModule(audio_module_handle_t moduleHandle) const
-{
-    audio_devices_t deviceTypes = AUDIO_DEVICE_NONE;
-    for (const auto& device : *this) {
-        if (device->getModuleHandle() == moduleHandle) {
-            deviceTypes |= device->type();
-        }
-    }
-    return deviceTypes;
-}
-
 sp<DeviceDescriptor> DeviceVector::getDevice(audio_devices_t type, const String8& address,
                                              audio_format_t format) const
 {
@@ -290,15 +279,14 @@
     return nullptr;
 }
 
-DeviceVector DeviceVector::getDevicesFromTypeMask(audio_devices_t type) const
+DeviceVector DeviceVector::getDevicesFromTypes(const DeviceTypeSet& types) const
 {
     DeviceVector devices;
-    bool isOutput = audio_is_output_devices(type);
-    type &= ~AUDIO_DEVICE_BIT_IN;
-    for (size_t i = 0; (i < size()) && (type != AUDIO_DEVICE_NONE); i++) {
-        bool curIsOutput = audio_is_output_devices(itemAt(i)->type());
-        audio_devices_t curType = itemAt(i)->type() & ~AUDIO_DEVICE_BIT_IN;
-        if ((isOutput == curIsOutput) && ((type & curType) != 0)) {
+    if (types.empty()) {
+        return devices;
+    }
+    for (size_t i = 0; i < size(); i++) {
+        if (types.count(itemAt(i)->type()) != 0) {
             devices.add(itemAt(i));
             ALOGV("DeviceVector::%s() for type %08x found %p",
                     __func__, itemAt(i)->type(), itemAt(i).get());
@@ -322,7 +310,7 @@
 {
     DeviceVector devices;
     for (auto deviceType : orderedTypes) {
-        if (!(devices = getDevicesFromTypeMask(deviceType)).isEmpty()) {
+        if (!(devices = getDevicesFromType(deviceType)).isEmpty()) {
             break;
         }
     }
@@ -342,7 +330,7 @@
 
 void DeviceVector::replaceDevicesByType(
         audio_devices_t typeToRemove, const DeviceVector &devicesToAdd) {
-    DeviceVector devicesToRemove = getDevicesFromTypeMask(typeToRemove);
+    DeviceVector devicesToRemove = getDevicesFromType(typeToRemove);
     if (!devicesToRemove.isEmpty() && !devicesToAdd.isEmpty()) {
         remove(devicesToRemove);
         add(devicesToAdd);
diff --git a/services/audiopolicy/common/managerdefinitions/src/HwModule.cpp b/services/audiopolicy/common/managerdefinitions/src/HwModule.cpp
index 453006a..0b4d3d4 100644
--- a/services/audiopolicy/common/managerdefinitions/src/HwModule.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/HwModule.cpp
@@ -273,14 +273,14 @@
     return nullptr;
 }
 
-sp <HwModule> HwModuleCollection::getModuleForDeviceTypes(audio_devices_t type,
-                                                          audio_format_t encodedFormat) const
+sp <HwModule> HwModuleCollection::getModuleForDeviceType(audio_devices_t type,
+                                                         audio_format_t encodedFormat) const
 {
     for (const auto& module : *this) {
         const auto& profiles = audio_is_output_device(type) ?
                 module->getOutputProfiles() : module->getInputProfiles();
         for (const auto& profile : profiles) {
-            if (profile->supportsDeviceTypes(type)) {
+            if (profile->supportsDeviceTypes({type})) {
                 if (encodedFormat != AUDIO_FORMAT_DEFAULT) {
                     DeviceVector declaredDevices = module->getDeclaredDevices();
                     sp <DeviceDescriptor> deviceDesc =
@@ -300,7 +300,7 @@
 sp<HwModule> HwModuleCollection::getModuleForDevice(const sp<DeviceDescriptor> &device,
                                                      audio_format_t encodedFormat) const
 {
-    return getModuleForDeviceTypes(device->type(), encodedFormat);
+    return getModuleForDeviceType(device->type(), encodedFormat);
 }
 
 DeviceVector HwModuleCollection::getAvailableDevicesFromModuleName(
@@ -354,7 +354,7 @@
                                                       const char *name,
                                                       const audio_format_t encodedFormat) const
 {
-    sp<HwModule> hwModule = getModuleForDeviceTypes(type, encodedFormat);
+    sp<HwModule> hwModule = getModuleForDeviceType(type, encodedFormat);
     if (hwModule == 0) {
         ALOGE("%s: could not find HW module for device %04x address %s", __FUNCTION__, type,
               address);
diff --git a/services/audiopolicy/engine/common/Android.bp b/services/audiopolicy/engine/common/Android.bp
index d0775ad..b87c71d 100644
--- a/services/audiopolicy/engine/common/Android.bp
+++ b/services/audiopolicy/engine/common/Android.bp
@@ -44,4 +44,7 @@
         "libaudiopolicycomponents",
         "libaudiopolicyengine_config",
     ],
+    shared_libs: [
+        "libaudiofoundation",
+    ],
 }
diff --git a/services/audiopolicy/engine/common/include/ProductStrategy.h b/services/audiopolicy/engine/common/include/ProductStrategy.h
index c538f52..ab8eff3 100644
--- a/services/audiopolicy/engine/common/include/ProductStrategy.h
+++ b/services/audiopolicy/engine/common/include/ProductStrategy.h
@@ -27,6 +27,7 @@
 #include <utils/Errors.h>
 #include <utils/String8.h>
 #include <media/AudioAttributes.h>
+#include <media/AudioContainers.h>
 
 namespace android {
 
@@ -77,12 +78,12 @@
 
     std::string getDeviceAddress() const { return mDeviceAddress; }
 
-    void setDeviceTypes(audio_devices_t devices)
+    void setDeviceTypes(const DeviceTypeSet& devices)
     {
         mApplicableDevices = devices;
     }
 
-    audio_devices_t getDeviceTypes() const { return mApplicableDevices; }
+    DeviceTypeSet getDeviceTypes() const { return mApplicableDevices; }
 
     audio_attributes_t getAttributesForStreamType(audio_stream_type_t stream) const;
     audio_stream_type_t getStreamTypeForAttributes(const audio_attributes_t &attr) const;
@@ -109,7 +110,7 @@
     /**
      * Applicable device(s) type mask for this strategy.
      */
-    audio_devices_t mApplicableDevices = AUDIO_DEVICE_NONE;
+    DeviceTypeSet mApplicableDevices;
 };
 
 class ProductStrategyMap : public std::map<product_strategy_t, sp<ProductStrategy> >
@@ -144,7 +145,7 @@
      */
     audio_attributes_t getAttributesForProductStrategy(product_strategy_t strategy) const;
 
-    audio_devices_t getDeviceTypesForProductStrategy(product_strategy_t strategy) const;
+    DeviceTypeSet getDeviceTypesForProductStrategy(product_strategy_t strategy) const;
 
     std::string getDeviceAddressForProductStrategy(product_strategy_t strategy) const;
 
diff --git a/services/audiopolicy/engine/common/include/VolumeCurve.h b/services/audiopolicy/engine/common/include/VolumeCurve.h
index d3d0904..2e75ff1 100644
--- a/services/audiopolicy/engine/common/include/VolumeCurve.h
+++ b/services/audiopolicy/engine/common/include/VolumeCurve.h
@@ -91,9 +91,9 @@
         return valueFor(device);
     }
 
-    virtual int getVolumeIndex(audio_devices_t device) const
+    virtual int getVolumeIndex(const DeviceTypeSet& deviceTypes) const
     {
-        device = Volume::getDeviceForVolume(device);
+        audio_devices_t device = Volume::getDeviceForVolume(deviceTypes);
         // there is always a valid entry for AUDIO_DEVICE_OUT_DEFAULT_FOR_VOLUME
         if (mIndexCur.find(device) == end(mIndexCur)) {
             device = AUDIO_DEVICE_OUT_DEFAULT_FOR_VOLUME;
@@ -114,7 +114,7 @@
 
     bool hasVolumeIndexForDevice(audio_devices_t device) const
     {
-        device = Volume::getDeviceForVolume(device);
+        device = Volume::getDeviceForVolume({device});
         return mIndexCur.find(device) != end(mIndexCur);
     }
 
diff --git a/services/audiopolicy/engine/common/src/ProductStrategy.cpp b/services/audiopolicy/engine/common/src/ProductStrategy.cpp
index ac3e462..14c9dd1 100644
--- a/services/audiopolicy/engine/common/src/ProductStrategy.cpp
+++ b/services/audiopolicy/engine/common/src/ProductStrategy.cpp
@@ -143,8 +143,9 @@
 {
     dst->appendFormat("\n%*s-%s (id: %d)\n", spaces, "", mName.c_str(), mId);
     std::string deviceLiteral;
-    if (!OutputDeviceConverter::toString(mApplicableDevices, deviceLiteral)) {
-        ALOGE("%s: failed to convert device %d", __FUNCTION__, mApplicableDevices);
+    if (!deviceTypesToString(mApplicableDevices, deviceLiteral)) {
+        ALOGE("%s: failed to convert device %s",
+              __FUNCTION__, dumpDeviceTypes(mApplicableDevices).c_str());
     }
     dst->appendFormat("%*sSelected Device: {type:%s, @:%s}\n", spaces + 2, "",
                        deviceLiteral.c_str(), mDeviceAddress.c_str());
@@ -236,14 +237,14 @@
 }
 
 
-audio_devices_t ProductStrategyMap::getDeviceTypesForProductStrategy(
+DeviceTypeSet ProductStrategyMap::getDeviceTypesForProductStrategy(
         product_strategy_t strategy) const
 {
     if (find(strategy) == end()) {
         ALOGE("Invalid %d strategy requested, returning device for default strategy", strategy);
         product_strategy_t defaultStrategy = getDefault();
         if (defaultStrategy == PRODUCT_STRATEGY_NONE) {
-            return AUDIO_DEVICE_NONE;
+            return {AUDIO_DEVICE_NONE};
         }
         return at(getDefault())->getDeviceTypes();
     }
diff --git a/services/audiopolicy/engineconfigurable/src/Engine.cpp b/services/audiopolicy/engineconfigurable/src/Engine.cpp
index 3987294..0a88685 100644
--- a/services/audiopolicy/engineconfigurable/src/Engine.cpp
+++ b/services/audiopolicy/engineconfigurable/src/Engine.cpp
@@ -32,6 +32,7 @@
 #include <policy.h>
 #include <AudioIODescriptorInterface.h>
 #include <ParameterManagerWrapper.h>
+#include <media/AudioContainers.h>
 
 #include <media/TypeConverter.h>
 
@@ -167,11 +168,13 @@
     mPolicyParameterMgr->setDeviceConnectionState(devDesc, state);
 
     if (audio_is_output_device(devDesc->type())) {
+        // FIXME: Use DeviceTypeSet when the interface is ready
         return mPolicyParameterMgr->setAvailableOutputDevices(
-                    getApmObserver()->getAvailableOutputDevices().types());
+                    deviceTypesToBitMask(getApmObserver()->getAvailableOutputDevices().types()));
     } else if (audio_is_input_device(devDesc->type())) {
+        // FIXME: Use DeviceTypeSet when the interface is ready
         return mPolicyParameterMgr->setAvailableInputDevices(
-                    getApmObserver()->getAvailableInputDevices().types());
+                    deviceTypesToBitMask(getApmObserver()->getAvailableInputDevices().types()));
     }
     return BAD_TYPE;
 }
@@ -211,7 +214,7 @@
     }
     const DeviceVector availableOutputDevices = getApmObserver()->getAvailableOutputDevices();
     const SwAudioOutputCollection &outputs = getApmObserver()->getOutputs();
-    uint32_t availableOutputDevicesType = availableOutputDevices.types();
+    DeviceTypeSet availableOutputDevicesTypes = availableOutputDevices.types();
 
     /** This is the only case handled programmatically because the PFW is unable to know the
      * activity of streams.
@@ -223,7 +226,7 @@
      *
      * -When media is not playing anymore, fall back on the sonification behavior
      */
-    audio_devices_t devices = AUDIO_DEVICE_NONE;
+    DeviceTypeSet deviceTypes;
     if (ps == getProductStrategyForStream(AUDIO_STREAM_NOTIFICATION) &&
             !is_state_in_call(getPhoneState()) &&
             !outputs.isActiveRemotely(toVolumeSource(AUDIO_STREAM_MUSIC),
@@ -232,7 +235,7 @@
                              SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY)) {
         product_strategy_t strategyForMedia =
                 getProductStrategyForStream(AUDIO_STREAM_MUSIC);
-        devices = productStrategies.getDeviceTypesForProductStrategy(strategyForMedia);
+        deviceTypes = productStrategies.getDeviceTypesForProductStrategy(strategyForMedia);
     } else if (ps == getProductStrategyForStream(AUDIO_STREAM_ACCESSIBILITY) &&
         (outputs.isActive(toVolumeSource(AUDIO_STREAM_RING)) ||
          outputs.isActive(toVolumeSource(AUDIO_STREAM_ALARM)))) {
@@ -240,36 +243,37 @@
             // compressed format as they would likely not be mixed and dropped.
             // Device For Sonification conf file has HDMI, SPDIF and HDMI ARC unreacheable.
         product_strategy_t strategyNotification = getProductStrategyForStream(AUDIO_STREAM_RING);
-        devices = productStrategies.getDeviceTypesForProductStrategy(strategyNotification);
+        deviceTypes = productStrategies.getDeviceTypesForProductStrategy(strategyNotification);
     } else {
-        devices = productStrategies.getDeviceTypesForProductStrategy(ps);
+        deviceTypes = productStrategies.getDeviceTypesForProductStrategy(ps);
     }
-    if (devices == AUDIO_DEVICE_NONE ||
-            (devices & availableOutputDevicesType) == AUDIO_DEVICE_NONE) {
+    if (deviceTypes.empty() ||
+            Intersection(deviceTypes, availableOutputDevicesTypes).empty()) {
         auto defaultDevice = getApmObserver()->getDefaultOutputDevice();
         ALOG_ASSERT(defaultDevice != nullptr, "no valid default device defined");
         return DeviceVector(defaultDevice);
     }
-    if (/*device_distinguishes_on_address(devices)*/ devices == AUDIO_DEVICE_OUT_BUS) {
+    if (/*device_distinguishes_on_address(*deviceTypes.begin())*/ isSingleDeviceType(
+            deviceTypes, AUDIO_DEVICE_OUT_BUS)) {
         // We do expect only one device for these types of devices
         // Criterion device address garantee this one is available
         // If this criterion is not wished, need to ensure this device is available
         const String8 address(productStrategies.getDeviceAddressForProductStrategy(ps).c_str());
-        ALOGV("%s:device 0x%x %s %d", __FUNCTION__, devices, address.c_str(), ps);
-        auto busDevice = availableOutputDevices.getDevice(devices, address, AUDIO_FORMAT_DEFAULT);
+        ALOGV("%s:device %s %s %d",
+                __FUNCTION__, dumpDeviceTypes(deviceTypes).c_str(), address.c_str(), ps);
+        auto busDevice = availableOutputDevices.getDevice(
+                *deviceTypes.begin(), address, AUDIO_FORMAT_DEFAULT);
         if (busDevice == nullptr) {
-            ALOGE("%s:unavailable device 0x%x %s, fallback on default", __func__, devices,
-                  address.c_str());
+            ALOGE("%s:unavailable device %s %s, fallback on default", __func__,
+                  dumpDeviceTypes(deviceTypes).c_str(), address.c_str());
             auto defaultDevice = getApmObserver()->getDefaultOutputDevice();
             ALOG_ASSERT(defaultDevice != nullptr, "Default Output Device NOT available");
             return DeviceVector(defaultDevice);
         }
-        return DeviceVector(availableOutputDevices.getDevice(devices,
-                                                             address,
-                                                             AUDIO_FORMAT_DEFAULT));
+        return DeviceVector(busDevice);
     }
-    ALOGV("%s:device 0x%x %d", __FUNCTION__, devices, ps);
-    return availableOutputDevices.getDevicesFromTypeMask(devices);
+    ALOGV("%s:device %s %d", __FUNCTION__, dumpDeviceTypes(deviceTypes).c_str(), ps);
+    return availableOutputDevices.getDevicesFromTypes(deviceTypes);
 }
 
 DeviceVector Engine::getOutputDevicesForAttributes(const audio_attributes_t &attributes,
@@ -366,7 +370,8 @@
         ALOGE("%s: set device %d on invalid strategy %d", __FUNCTION__, devices, strategy);
         return false;
     }
-    getProductStrategies().at(strategy)->setDeviceTypes(devices);
+    // FIXME: stop using deviceTypesFromBitMask when the interface is ready
+    getProductStrategies().at(strategy)->setDeviceTypes(deviceTypesFromBitMask(devices));
     return true;
 }
 
diff --git a/services/audiopolicy/enginedefault/src/Engine.cpp b/services/audiopolicy/enginedefault/src/Engine.cpp
index a02f567..2a5cd49 100644
--- a/services/audiopolicy/enginedefault/src/Engine.cpp
+++ b/services/audiopolicy/enginedefault/src/Engine.cpp
@@ -31,6 +31,7 @@
 #include <IOProfile.h>
 #include <AudioIODescriptorInterface.h>
 #include <policy.h>
+#include <media/AudioContainers.h>
 #include <utils/String8.h>
 #include <utils/Log.h>
 
@@ -146,7 +147,7 @@
     switch (strategy) {
 
     case STRATEGY_TRANSMITTED_THROUGH_SPEAKER:
-        devices = availableOutputDevices.getDevicesFromTypeMask(AUDIO_DEVICE_OUT_SPEAKER);
+        devices = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_SPEAKER);
         break;
 
     case STRATEGY_SONIFICATION_RESPECTFUL:
@@ -161,7 +162,7 @@
                         toVolumeSource(AUDIO_STREAM_ACCESSIBILITY),
                         SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY);
             // routing is same as media without the "remote" device
-            availableOutputDevices.remove(availableOutputDevices.getDevicesFromTypeMask(
+            availableOutputDevices.remove(availableOutputDevices.getDevicesFromType(
                     AUDIO_DEVICE_OUT_REMOTE_SUBMIX));
             devices = getDevicesForStrategyInt(STRATEGY_MEDIA,
                     availableOutputDevices,
@@ -171,7 +172,7 @@
             if (!media_active_locally) {
                 devices.replaceDevicesByType(
                         AUDIO_DEVICE_OUT_SPEAKER,
-                        availableOutputDevices.getDevicesFromTypeMask(
+                        availableOutputDevices.getDevicesFromType(
                                 AUDIO_DEVICE_OUT_SPEAKER_SAFE));
             }
         }
@@ -204,10 +205,10 @@
             // audio_policy_configuration.xml, hearing aid is not there, but it's
             // a primary device
             // FIXME: this is not the right way of solving this problem
-            DeviceVector availPrimaryOutputDevices = availableOutputDevices.getDevicesFromTypeMask(
+            DeviceVector availPrimaryOutputDevices = availableOutputDevices.getDevicesFromTypes(
                     primaryOutput->supportedDevices().types());
             availPrimaryOutputDevices.add(
-                    availableOutputDevices.getDevicesFromTypeMask(AUDIO_DEVICE_OUT_HEARING_AID));
+                    availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_HEARING_AID));
 
             if ((availableInputDevices.getDevice(AUDIO_DEVICE_IN_TELEPHONY_RX,
                     String8(""), AUDIO_FORMAT_DEFAULT) == nullptr) ||
@@ -222,7 +223,7 @@
         switch (getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION)) {
         case AUDIO_POLICY_FORCE_BT_SCO:
             if (!isInCall() || strategy != STRATEGY_DTMF) {
-                devices = availableOutputDevices.getDevicesFromTypeMask(
+                devices = availableOutputDevices.getDevicesFromType(
                         AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT);
                 if (!devices.isEmpty()) break;
             }
@@ -233,7 +234,7 @@
             FALLTHROUGH_INTENDED;
 
         default:    // FORCE_NONE
-            devices = availableOutputDevices.getDevicesFromTypeMask(AUDIO_DEVICE_OUT_HEARING_AID);
+            devices = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_HEARING_AID);
             if (!devices.isEmpty()) break;
             // when not in a phone call, phone strategy should route STREAM_VOICE_CALL to A2DP
             if (!isInCall() &&
@@ -255,7 +256,7 @@
                         AUDIO_DEVICE_OUT_AUX_DIGITAL, AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET});
                 if (!devices.isEmpty()) break;
             }
-            devices = availableOutputDevices.getDevicesFromTypeMask(AUDIO_DEVICE_OUT_EARPIECE);
+            devices = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_EARPIECE);
             break;
 
         case AUDIO_POLICY_FORCE_SPEAKER:
@@ -264,7 +265,7 @@
             if (!isInCall() &&
                     (getForceUse(AUDIO_POLICY_FORCE_FOR_MEDIA) != AUDIO_POLICY_FORCE_NO_BT_A2DP) &&
                      outputs.isA2dpSupported()) {
-                devices = availableOutputDevices.getDevicesFromTypeMask(
+                devices = availableOutputDevices.getDevicesFromType(
                         AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER);
                 if (!devices.isEmpty()) break;
             }
@@ -275,7 +276,7 @@
                         AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET});
                 if (!devices.isEmpty()) break;
             }
-            devices = availableOutputDevices.getDevicesFromTypeMask(AUDIO_DEVICE_OUT_SPEAKER);
+            devices = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_SPEAKER);
             break;
         }
     break;
@@ -299,12 +300,12 @@
 
         if ((strategy == STRATEGY_SONIFICATION) ||
                 (getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED)) {
-            devices = availableOutputDevices.getDevicesFromTypeMask(AUDIO_DEVICE_OUT_SPEAKER);
+            devices = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_SPEAKER);
         }
 
         // if SCO headset is connected and we are told to use it, play ringtone over
         // speaker and BT SCO
-        if (!availableOutputDevices.getDevicesFromTypeMask(AUDIO_DEVICE_OUT_ALL_SCO).isEmpty()) {
+        if (!availableOutputDevices.getDevicesFromTypes(getAudioDeviceOutAllScoSet()).isEmpty()) {
             DeviceVector devices2;
             devices2 = availableOutputDevices.getFirstDevicesFromTypes({
                     AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT, AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET,
@@ -325,7 +326,7 @@
                 if (strategy == STRATEGY_SONIFICATION) {
                     devices.replaceDevicesByType(
                             AUDIO_DEVICE_OUT_SPEAKER,
-                            availableOutputDevices.getDevicesFromTypeMask(
+                            availableOutputDevices.getDevicesFromType(
                                     AUDIO_DEVICE_OUT_SPEAKER_SAFE));
                 }
                 if (!devices2.isEmpty()) {
@@ -344,9 +345,9 @@
             for (size_t i = 0; i < outputs.size(); i++) {
                 sp<AudioOutputDescriptor> desc = outputs.valueAt(i);
                 if (desc->isActive() && !audio_is_linear_pcm(desc->getFormat())) {
-                    availableOutputDevices.remove(desc->devices().getDevicesFromTypeMask(
-                            AUDIO_DEVICE_OUT_HDMI | AUDIO_DEVICE_OUT_SPDIF
-                            | AUDIO_DEVICE_OUT_HDMI_ARC));
+                    availableOutputDevices.remove(desc->devices().getDevicesFromTypes({
+                            AUDIO_DEVICE_OUT_HDMI, AUDIO_DEVICE_OUT_SPDIF,
+                            AUDIO_DEVICE_OUT_HDMI_ARC}));
                 }
             }
             if (outputs.isActive(toVolumeSource(AUDIO_STREAM_RING)) ||
@@ -383,7 +384,7 @@
         // FIXME: Find a better solution to prevent routing to BT hearing aid(b/122931261).
         if ((devices2.isEmpty()) &&
                 (getForceUse(AUDIO_POLICY_FORCE_FOR_MEDIA) != AUDIO_POLICY_FORCE_NO_BT_A2DP)) {
-            devices2 = availableOutputDevices.getDevicesFromTypeMask(AUDIO_DEVICE_OUT_HEARING_AID);
+            devices2 = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_HEARING_AID);
         }
         if ((devices2.isEmpty()) &&
                 (getForceUse(AUDIO_POLICY_FORCE_FOR_MEDIA) != AUDIO_POLICY_FORCE_NO_BT_A2DP) &&
@@ -394,7 +395,7 @@
         }
         if ((devices2.isEmpty()) &&
             (getForceUse(AUDIO_POLICY_FORCE_FOR_MEDIA) == AUDIO_POLICY_FORCE_SPEAKER)) {
-            devices2 = availableOutputDevices.getDevicesFromTypeMask(AUDIO_DEVICE_OUT_SPEAKER);
+            devices2 = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_SPEAKER);
         }
         if (devices2.isEmpty()) {
             devices2 = availableOutputDevices.getFirstDevicesFromTypes({
@@ -405,21 +406,21 @@
         }
         if ((devices2.isEmpty()) && (strategy != STRATEGY_SONIFICATION)) {
             // no sonification on aux digital (e.g. HDMI)
-            devices2 = availableOutputDevices.getDevicesFromTypeMask(AUDIO_DEVICE_OUT_AUX_DIGITAL);
+            devices2 = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_AUX_DIGITAL);
         }
         if ((devices2.isEmpty()) &&
                 (getForceUse(AUDIO_POLICY_FORCE_FOR_DOCK) == AUDIO_POLICY_FORCE_ANALOG_DOCK)) {
-            devices2 = availableOutputDevices.getDevicesFromTypeMask(
+            devices2 = availableOutputDevices.getDevicesFromType(
                     AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET);
         }
         if (devices2.isEmpty()) {
-            devices2 = availableOutputDevices.getDevicesFromTypeMask(AUDIO_DEVICE_OUT_SPEAKER);
+            devices2 = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_SPEAKER);
         }
         DeviceVector devices3;
         if (strategy == STRATEGY_MEDIA) {
             // ARC, SPDIF and AUX_LINE can co-exist with others.
-            devices3 = availableOutputDevices.getDevicesFromTypeMask(
-                    AUDIO_DEVICE_OUT_HDMI_ARC | AUDIO_DEVICE_OUT_SPDIF | AUDIO_DEVICE_OUT_AUX_LINE);
+            devices3 = availableOutputDevices.getDevicesFromTypes({
+                    AUDIO_DEVICE_OUT_HDMI_ARC, AUDIO_DEVICE_OUT_SPDIF, AUDIO_DEVICE_OUT_AUX_LINE});
         }
 
         devices2.add(devices3);
@@ -431,7 +432,7 @@
         if ((strategy == STRATEGY_MEDIA) &&
             (getForceUse(AUDIO_POLICY_FORCE_FOR_HDMI_SYSTEM_AUDIO) ==
                 AUDIO_POLICY_FORCE_HDMI_SYSTEM_AUDIO_ENFORCED)) {
-            devices.remove(devices.getDevicesFromTypeMask(AUDIO_DEVICE_OUT_SPEAKER));
+            devices.remove(devices.getDevicesFromType(AUDIO_DEVICE_OUT_SPEAKER));
         }
 
         // for STRATEGY_SONIFICATION:
@@ -439,7 +440,7 @@
         if (strategy == STRATEGY_SONIFICATION) {
             devices.replaceDevicesByType(
                     AUDIO_DEVICE_OUT_SPEAKER,
-                    availableOutputDevices.getDevicesFromTypeMask(
+                    availableOutputDevices.getDevicesFromType(
                             AUDIO_DEVICE_OUT_SPEAKER_SAFE));
         }
         } break;
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index aec9cee..72221a8 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -425,7 +425,7 @@
     if (!audio_is_output_device(device) && !audio_is_input_device(device)) return BAD_VALUE;
 
     // Check if the device is currently connected
-    DeviceVector deviceList = mAvailableOutputDevices.getDevicesFromTypeMask(device);
+    DeviceVector deviceList = mAvailableOutputDevices.getDevicesFromType(device);
     if (deviceList.empty()) {
         // Nothing to do: device is not connected
         return NO_ERROR;
@@ -439,8 +439,8 @@
     // Case 1: A2DP active device switches from primary to primary
     // module
     // Case 2: A2DP device config changes on primary module.
-    if (device & AUDIO_DEVICE_OUT_ALL_A2DP) {
-        sp<HwModule> module = mHwModules.getModuleForDeviceTypes(device, encodedFormat);
+    if (audio_is_a2dp_out_device(device)) {
+        sp<HwModule> module = mHwModules.getModuleForDeviceType(device, encodedFormat);
         audio_module_handle_t primaryHandle = mPrimaryOutput->getModuleHandle();
         if (availablePrimaryOutputDevices().contains(devDesc) &&
            (module != 0 && module->getHandle() == primaryHandle)) {
@@ -496,8 +496,8 @@
         ALOGE("%s() unable to get primary module", __func__);
         return NO_INIT;
     }
-    DeviceVector declaredDevices = primaryModule->getDeclaredDevices().getDevicesFromTypeMask(
-            AUDIO_DEVICE_OUT_ALL_A2DP);
+    DeviceVector declaredDevices = primaryModule->getDeclaredDevices().getDevicesFromTypes(
+            getAudioDeviceOutAllA2dpSet());
     for (const auto& device : declaredDevices) {
         formatSet.insert(device->encodedFormats().begin(), device->encodedFormats().end());
     }
@@ -511,7 +511,8 @@
     bool createRxPatch = false;
     uint32_t muteWaitMs = 0;
 
-    if(!hasPrimaryOutput() || mPrimaryOutput->devices().types() == AUDIO_DEVICE_OUT_STUB) {
+    if(!hasPrimaryOutput() ||
+            mPrimaryOutput->devices().onlyContainsDevicesWithType(AUDIO_DEVICE_OUT_STUB)) {
         return muteWaitMs;
     }
     ALOG_ASSERT(!rxDevices.isEmpty(), "updateCallRouting() no selected output device");
@@ -535,9 +536,9 @@
     }
 
     auto telephonyRxModule =
-        mHwModules.getModuleForDeviceTypes(AUDIO_DEVICE_IN_TELEPHONY_RX, AUDIO_FORMAT_DEFAULT);
+        mHwModules.getModuleForDeviceType(AUDIO_DEVICE_IN_TELEPHONY_RX, AUDIO_FORMAT_DEFAULT);
     auto telephonyTxModule =
-        mHwModules.getModuleForDeviceTypes(AUDIO_DEVICE_OUT_TELEPHONY_TX, AUDIO_FORMAT_DEFAULT);
+        mHwModules.getModuleForDeviceType(AUDIO_DEVICE_OUT_TELEPHONY_TX, AUDIO_FORMAT_DEFAULT);
     // retrieve Rx Source and Tx Sink device descriptors
     sp<DeviceDescriptor> rxSourceDevice =
         mAvailableInputDevices.getDevice(AUDIO_DEVICE_IN_TELEPHONY_RX,
@@ -648,20 +649,6 @@
     return audioPatch;
 }
 
-sp<DeviceDescriptor> AudioPolicyManager::findDevice(
-        const DeviceVector& devices, audio_devices_t device) const {
-    DeviceVector deviceList = devices.getDevicesFromTypeMask(device);
-    ALOG_ASSERT(!deviceList.isEmpty(),
-            "%s() selected device type %#x is not in devices list", __func__, device);
-    return deviceList.itemAt(0);
-}
-
-audio_devices_t AudioPolicyManager::getModuleDeviceTypes(
-        const DeviceVector& devices, const char *moduleId) const {
-    sp<HwModule> mod = mHwModules.getModuleFromName(moduleId);
-    return mod != 0 ? devices.getDeviceTypesFromHwModule(mod->getHandle()) : AUDIO_DEVICE_NONE;
-}
-
 bool AudioPolicyManager::isDeviceOfModule(
         const sp<DeviceDescriptor>& devDesc, const char *moduleId) const {
     sp<HwModule> module = mHwModules.getModuleFromName(moduleId);
@@ -881,7 +868,7 @@
                 continue;
             }
             // reject profiles if connected device does not support codec
-            if (!curProfile->deviceSupportsEncodedFormats(devices.types())) {
+            if (!curProfile->devicesSupportEncodedFormats(devices.types())) {
                 continue;
             }
             if (!directOnly) return curProfile;
@@ -1025,7 +1012,7 @@
     // FIXME: provide a more generic approach which is not device specific and move this back
     // to getOutputForDevice.
     // TODO: Remove check of AUDIO_STREAM_MUSIC once migration is completed on the app side.
-    if (outputDevices.types() == AUDIO_DEVICE_OUT_TELEPHONY_TX &&
+    if (outputDevices.onlyContainsDevicesWithType(AUDIO_DEVICE_OUT_TELEPHONY_TX) &&
         (*stream == AUDIO_STREAM_MUSIC  || resultAttr->usage == AUDIO_USAGE_VOICE_COMMUNICATION) &&
         audio_is_linear_pcm(config->format) &&
         isInCall()) {
@@ -1234,7 +1221,7 @@
             for (size_t j = 0; j < patch->mPatch.num_sinks; ++j) {
                 const struct audio_port_config *sink = &patch->mPatch.sinks[j];
                 if (sink->type == AUDIO_PORT_TYPE_DEVICE &&
-                        (sink->ext.device.type & devices.types()) != AUDIO_DEVICE_NONE &&
+                        devices.containsDeviceWithType(sink->ext.device.type) &&
                         (address.isEmpty() || strncmp(sink->ext.device.address, address.string(),
                                 AUDIO_DEVICE_MAX_ADDRESS_LEN) == 0)) {
                     releaseAudioPatch(patch->mHandle, mUidCached);
@@ -1777,14 +1764,15 @@
     }
 
     if (stream == AUDIO_STREAM_ENFORCED_AUDIBLE &&
-            mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) {
+            mEngine->getForceUse(
+                    AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) {
         setStrategyMute(streamToStrategy(AUDIO_STREAM_ALARM), true, outputDesc);
     }
 
     // Automatically enable the remote submix input when output is started on a re routing mix
     // of type MIX_TYPE_RECORDERS
-    if (audio_is_remote_submix_device(devices.types()) && policyMix != NULL &&
-        policyMix->mMixType == MIX_TYPE_RECORDERS) {
+    if (isSingleDeviceType(devices.types(), &audio_is_remote_submix_device) &&
+        policyMix != NULL && policyMix->mMixType == MIX_TYPE_RECORDERS) {
         setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX,
                                     AUDIO_POLICY_DEVICE_STATE_AVAILABLE,
                                     address,
@@ -1831,7 +1819,8 @@
             // Automatically disable the remote submix input when output is stopped on a
             // re routing mix of type MIX_TYPE_RECORDERS
             sp<AudioPolicyMix> policyMix = outputDesc->mPolicyMix.promote();
-            if (audio_is_remote_submix_device(outputDesc->devices().types()) &&
+            if (isSingleDeviceType(
+                    outputDesc->devices().types(), &audio_is_remote_submix_device) &&
                 policyMix != NULL &&
                 policyMix->mMixType == MIX_TYPE_RECORDERS) {
                 setDeviceConnectionStateInt(AUDIO_DEVICE_IN_REMOTE_SUBMIX,
@@ -2491,10 +2480,12 @@
 {
     // if device is AUDIO_DEVICE_OUT_DEFAULT_FOR_VOLUME, return volume for device selected for this
     // stream by the engine.
+    DeviceTypeSet deviceTypes = {device};
     if (device == AUDIO_DEVICE_OUT_DEFAULT_FOR_VOLUME) {
-        device = mEngine->getOutputDevicesForStream(stream, true /*fromCache*/).types();
+        deviceTypes = mEngine->getOutputDevicesForStream(
+                stream, true /*fromCache*/).types();
     }
-    return getVolumeIndex(getVolumeCurves(stream), *index, device);
+    return getVolumeIndex(getVolumeCurves(stream), *index, deviceTypes);
 }
 
 status_t AudioPolicyManager::setVolumeIndexForAttributes(const audio_attributes_t &attributes,
@@ -2519,19 +2510,20 @@
         return status;
     }
 
-    audio_devices_t curSrcDevice;
+    DeviceTypeSet curSrcDevices;
     auto curCurvAttrs = curves.getAttributes();
     if (!curCurvAttrs.empty() && curCurvAttrs.front() != defaultAttr) {
         auto attr = curCurvAttrs.front();
-        curSrcDevice = mEngine->getOutputDevicesForAttributes(attr, nullptr, false).types();
+        curSrcDevices = mEngine->getOutputDevicesForAttributes(attr, nullptr, false).types();
     } else if (!curves.getStreamTypes().empty()) {
         auto stream = curves.getStreamTypes().front();
-        curSrcDevice = mEngine->getOutputDevicesForStream(stream, false).types();
+        curSrcDevices = mEngine->getOutputDevicesForStream(stream, false).types();
     } else {
         ALOGE("%s: Invalid src %d: no valid attributes nor stream",__func__, vs);
         return BAD_VALUE;
     }
-    curSrcDevice = Volume::getDeviceForVolume(curSrcDevice);
+    audio_devices_t curSrcDevice = Volume::getDeviceForVolume(curSrcDevices);
+    resetDeviceTypes(curSrcDevices, curSrcDevice);
 
     // update volume on all outputs and streams matching the following:
     // - The requested stream (or a stream matching for volume control) is active on the output
@@ -2543,11 +2535,10 @@
     // no specific device volume value exists for currently selected device.
     for (size_t i = 0; i < mOutputs.size(); i++) {
         sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i);
-        audio_devices_t curDevice = desc->devices().types();
+        DeviceTypeSet curDevices = desc->devices().types();
 
-        if (curDevice & AUDIO_DEVICE_OUT_SPEAKER_SAFE) {
-            curDevice |= AUDIO_DEVICE_OUT_SPEAKER;
-            curDevice &= ~AUDIO_DEVICE_OUT_SPEAKER_SAFE;
+        if (curDevices.erase(AUDIO_DEVICE_OUT_SPEAKER_SAFE)) {
+            curDevices.insert(AUDIO_DEVICE_OUT_SPEAKER);
         }
 
         // Inter / intra volume group priority management: Loop on strategies arranged by priority
@@ -2591,7 +2582,7 @@
             if (!applyVolume) {
                 continue; // next output
             }
-            status_t volStatus = checkAndSetVolume(curves, vs, index, desc, curDevice,
+            status_t volStatus = checkAndSetVolume(curves, vs, index, desc, curDevices,
                                                    (vs == toVolumeSource(AUDIO_STREAM_SYSTEM)?
                                                         TOUCH_SOUND_FIXED_DELAY_MS : 0));
             if (volStatus != NO_ERROR) {
@@ -2602,12 +2593,14 @@
         if (!(desc->isActive(vs) || isInCall())) {
             continue;
         }
-        if ((device != AUDIO_DEVICE_OUT_DEFAULT_FOR_VOLUME) && ((curDevice & device) == 0)) {
+        if (device != AUDIO_DEVICE_OUT_DEFAULT_FOR_VOLUME &&
+                curDevices.find(device) == curDevices.end()) {
             continue;
         }
         if (device != AUDIO_DEVICE_OUT_DEFAULT_FOR_VOLUME) {
-            curSrcDevice |= device;
-            applyVolume = (Volume::getDeviceForVolume(curDevice) & curSrcDevice) != 0;
+            curSrcDevices.insert(device);
+            applyVolume = (curSrcDevices.find(
+                    Volume::getDeviceForVolume(curDevices)) != curSrcDevices.end());
         } else {
             applyVolume = !curves.hasVolumeIndexForDevice(curSrcDevice);
         }
@@ -2616,7 +2609,7 @@
             // delayed volume change for system stream to be removed when the problem is
             // handled by system UI
             status_t volStatus = checkAndSetVolume(
-                        curves, vs, index, desc, curDevice,
+                        curves, vs, index, desc, curDevices,
                         ((vs == toVolumeSource(AUDIO_STREAM_SYSTEM))?
                              TOUCH_SOUND_FIXED_DELAY_MS : 0));
             if (volStatus != NO_ERROR) {
@@ -2659,22 +2652,23 @@
 {
     // if device is AUDIO_DEVICE_OUT_DEFAULT_FOR_VOLUME, return volume for device selected for this
     // stream by the engine.
+    DeviceTypeSet deviceTypes = {device};
     if (device == AUDIO_DEVICE_OUT_DEFAULT_FOR_VOLUME) {
-        device = mEngine->getOutputDevicesForAttributes(attr, nullptr, true /*fromCache*/).types();
+        DeviceTypeSet deviceTypes = mEngine->getOutputDevicesForAttributes(
+                attr, nullptr, true /*fromCache*/).types();
     }
-    return getVolumeIndex(getVolumeCurves(attr), index, device);
+    return getVolumeIndex(getVolumeCurves(attr), index, deviceTypes);
 }
 
 status_t AudioPolicyManager::getVolumeIndex(const IVolumeCurves &curves,
                                             int &index,
-                                            audio_devices_t device) const
+                                            const DeviceTypeSet& deviceTypes) const
 {
-    if (!audio_is_output_device(device)) {
+    if (isSingleDeviceType(deviceTypes, audio_is_output_device)) {
         return BAD_VALUE;
     }
-    device = Volume::getDeviceForVolume(device);
-    index = curves.getVolumeIndex(device);
-    ALOGV("%s: device %08x index %d", __FUNCTION__, device, index);
+    index = curves.getVolumeIndex(deviceTypes);
+    ALOGV("%s: device %s index %d", __FUNCTION__, dumpDeviceTypes(deviceTypes).c_str(), index);
     return NO_ERROR;
 }
 
@@ -3438,8 +3432,8 @@
         }
 
         // TODO: reconfigure output format and channels here
-        ALOGV("createAudioPatch() setting device %08x on output %d",
-              devices.types(), outputDesc->mIoHandle);
+        ALOGV("createAudioPatch() setting device %s on output %d",
+              dumpDeviceTypes(devices.types()).c_str(), outputDesc->mIoHandle);
         setOutputDevices(outputDesc, devices, true, 0, handle);
         index = mAudioPatches.indexOfKey(*handle);
         if (index >= 0) {
@@ -3919,12 +3913,14 @@
                 &selectedDeviceId, &isRequestedDeviceForExclusiveUse,
                 &secondaryOutputs);
         if (output == AUDIO_IO_HANDLE_NONE) {
-            ALOGV("%s no output for device %08x", __FUNCTION__, sinkDevices.types());
+            ALOGV("%s no output for device %s",
+                  __FUNCTION__, dumpDeviceTypes(sinkDevices.types()).c_str());
             return INVALID_OPERATION;
         }
         sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueFor(output);
         if (outputDesc->isDuplicated()) {
-            ALOGV("%s output for device %08x is duplicated", __FUNCTION__, sinkDevices.types());
+            ALOGV("%s output for device %s is duplicated",
+                  __FUNCTION__, dumpDeviceTypes(sinkDevices.types()).c_str());
             return INVALID_OPERATION;
         }
         status_t status = outputDesc->start();
@@ -4033,7 +4029,7 @@
 float AudioPolicyManager::getStreamVolumeDB(
         audio_stream_type_t stream, int index, audio_devices_t device)
 {
-    return computeVolume(getVolumeCurves(stream), toVolumeSource(stream), index, device);
+    return computeVolume(getVolumeCurves(stream), toVolumeSource(stream), index, {device});
 }
 
 status_t AudioPolicyManager::getSurroundFormats(unsigned int *numSurroundFormats,
@@ -4133,8 +4129,8 @@
 
     sp<SwAudioOutputDescriptor> outputDesc;
     bool profileUpdated = false;
-    DeviceVector hdmiOutputDevices = mAvailableOutputDevices.getDevicesFromTypeMask(
-            AUDIO_DEVICE_OUT_HDMI);
+    DeviceVector hdmiOutputDevices = mAvailableOutputDevices.getDevicesFromType(
+        AUDIO_DEVICE_OUT_HDMI);
     for (size_t i = 0; i < hdmiOutputDevices.size(); i++) {
         // Simulate reconnection to update enabled surround sound formats.
         String8 address = String8(hdmiOutputDevices[i]->address().c_str());
@@ -4155,7 +4151,7 @@
         profileUpdated |= (status == NO_ERROR);
     }
     // FIXME: Why doing this for input HDMI devices if we don't augment their reported formats?
-    DeviceVector hdmiInputDevices = mAvailableInputDevices.getDevicesFromTypeMask(
+    DeviceVector hdmiInputDevices = mAvailableInputDevices.getDevicesFromType(
                 AUDIO_DEVICE_IN_HDMI);
     for (size_t i = 0; i < hdmiInputDevices.size(); i++) {
         // Simulate reconnection to update enabled surround sound formats.
@@ -4551,7 +4547,7 @@
                                    const sp<SwAudioOutputDescriptor>& outputDesc)
 {
     mOutputs.add(output, outputDesc);
-    applyStreamVolumes(outputDesc, AUDIO_DEVICE_NONE, 0 /* delayMs */, true /* force */);
+    applyStreamVolumes(outputDesc, DeviceTypeSet(), 0 /* delayMs */, true /* force */);
     updateMono(output); // update mono status when adding to output list
     selectOutputForMusicEffects();
     nextAudioPortGeneration();
@@ -4588,7 +4584,7 @@
         for (size_t i = 0; i < mOutputs.size(); i++) {
             desc = mOutputs.valueAt(i);
             if (!desc->isDuplicated() && desc->supportsDevice(device)
-                    && desc->deviceSupportsEncodedFormats(deviceType)) {
+                    && desc->devicesSupportEncodedFormats({deviceType})) {
                 ALOGV("checkOutputsForDevice(): adding opened output %d on device %s",
                       mOutputs.keyAt(i), device->toString().c_str());
                 outputs.add(mOutputs.keyAt(i));
@@ -4753,7 +4749,7 @@
             if (!desc->isDuplicated()) {
                 // exact match on device
                 if (device_distinguishes_on_address(deviceType) && desc->supportsDevice(device)
-                        && desc->deviceSupportsEncodedFormats(deviceType)) {
+                        && desc->devicesSupportEncodedFormats({deviceType})) {
                     outputs.add(mOutputs.keyAt(i));
                 } else if (!mAvailableOutputDevices.containsAtLeastOne(desc->supportedDevices())) {
                     ALOGV("checkOutputsForDevice(): disconnecting adding output %d",
@@ -5024,7 +5020,7 @@
                 i, openOutputs.valueAt(i)->isDuplicated(),
                 openOutputs.valueAt(i)->supportedDevices().toString().c_str());
         if (openOutputs.valueAt(i)->supportsAllDevices(devices)
-                && openOutputs.valueAt(i)->deviceSupportsEncodedFormats(devices.types())) {
+                && openOutputs.valueAt(i)->devicesSupportEncodedFormats(devices.types())) {
             ALOGVV("%s() found output %d", __func__, openOutputs.keyAt(i));
             outputs.add(openOutputs.keyAt(i));
         }
@@ -5199,9 +5195,8 @@
     }
 
     bool isScoConnected =
-            ((mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET &
-                    ~AUDIO_DEVICE_BIT_IN) != 0) ||
-            ((mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_ALL_SCO) != 0);
+            (mAvailableInputDevices.types().count(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) != 0 ||
+             !Intersection(mAvailableOutputDevices.types(), getAudioDeviceOutAllScoSet()).empty());
 
     // if suspended, restore A2DP output if:
     //      ((SCO device is NOT connected) ||
@@ -5363,12 +5358,13 @@
     }
     /*Filter SPEAKER_SAFE out of results, as AudioService doesn't know about it
       and doesn't really need to.*/
-    DeviceVector speakerSafeDevices = devices.getDevicesFromTypeMask(AUDIO_DEVICE_OUT_SPEAKER_SAFE);
+    DeviceVector speakerSafeDevices = devices.getDevicesFromType(AUDIO_DEVICE_OUT_SPEAKER_SAFE);
     if (!speakerSafeDevices.isEmpty()) {
-        devices.merge(mAvailableOutputDevices.getDevicesFromTypeMask(AUDIO_DEVICE_OUT_SPEAKER));
+        devices.merge(mAvailableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_SPEAKER));
         devices.remove(speakerSafeDevices);
     }
-    return devices.types();
+    // FIXME: use DeviceTypeSet when Java layer is ready for it.
+    return deviceTypesToBitMask(devices.types());
 }
 
 void AudioPolicyManager::handleNotificationRoutingForStream(audio_stream_type_t stream) {
@@ -5428,7 +5424,7 @@
         auto ttsVolumeSource = toVolumeSource(AUDIO_STREAM_TTS);
         for (size_t i = 0; i < mOutputs.size(); i++) {
             sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i);
-            setVolumeSourceMute(ttsVolumeSource, mute/*on*/, desc, 0 /*delay*/, AUDIO_DEVICE_NONE);
+            setVolumeSourceMute(ttsVolumeSource, mute/*on*/, desc, 0 /*delay*/, DeviceTypeSet());
             const uint32_t latency = desc->latency() * 2;
             if (latency > maxLatency) {
                 maxLatency = latency;
@@ -5744,9 +5740,9 @@
 float AudioPolicyManager::computeVolume(IVolumeCurves &curves,
                                         VolumeSource volumeSource,
                                         int index,
-                                        audio_devices_t device)
+                                        const DeviceTypeSet& deviceTypes)
 {
-    float volumeDb = curves.volIndexToDb(Volume::getDeviceCategory(device), index);
+    float volumeDb = curves.volIndexToDb(Volume::getDeviceCategory(deviceTypes), index);
 
     // handle the case of accessibility active while a ringtone is playing: if the ringtone is much
     // louder than the accessibility prompt, the prompt cannot be heard, thus masking the touch
@@ -5762,7 +5758,7 @@
             && (AUDIO_MODE_RINGTONE == mEngine->getPhoneState()) &&
             mOutputs.isActive(ringVolumeSrc, 0)) {
         auto &ringCurves = getVolumeCurves(AUDIO_STREAM_RING);
-        const float ringVolumeDb = computeVolume(ringCurves, ringVolumeSrc, index, device);
+        const float ringVolumeDb = computeVolume(ringCurves, ringVolumeSrc, index, deviceTypes);
         return ringVolumeDb - 4 > volumeDb ? ringVolumeDb - 4 : volumeDb;
     }
 
@@ -5777,9 +5773,9 @@
              volumeSource == toVolumeSource(AUDIO_STREAM_DTMF) ||
              volumeSource == a11yVolumeSrc)) {
         auto &voiceCurves = getVolumeCurves(callVolumeSrc);
-        int voiceVolumeIndex = voiceCurves.getVolumeIndex(device);
+        int voiceVolumeIndex = voiceCurves.getVolumeIndex(deviceTypes);
         const float maxVoiceVolDb =
-                computeVolume(voiceCurves, callVolumeSrc, voiceVolumeIndex, device)
+                computeVolume(voiceCurves, callVolumeSrc, voiceVolumeIndex, deviceTypes)
                 + IN_CALL_EARPIECE_HEADROOM_DB;
         // FIXME: Workaround for call screening applications until a proper audio mode is defined
         // to support this scenario : Exempt the RING stream from the audio cap if the audio was
@@ -5805,9 +5801,10 @@
     // speaker is part of the select devices
     // - if music is playing, always limit the volume to current music volume,
     // with a minimum threshold at -36dB so that notification is always perceived.
-    if ((device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP | AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES |
-                   AUDIO_DEVICE_OUT_WIRED_HEADSET | AUDIO_DEVICE_OUT_WIRED_HEADPHONE |
-                   AUDIO_DEVICE_OUT_USB_HEADSET | AUDIO_DEVICE_OUT_HEARING_AID)) &&
+    if (!Intersection(deviceTypes,
+            {AUDIO_DEVICE_OUT_BLUETOOTH_A2DP, AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES,
+             AUDIO_DEVICE_OUT_WIRED_HEADSET, AUDIO_DEVICE_OUT_WIRED_HEADPHONE,
+             AUDIO_DEVICE_OUT_USB_HEADSET, AUDIO_DEVICE_OUT_HEARING_AID}).empty() &&
             ((volumeSource == alarmVolumeSrc ||
               volumeSource == ringVolumeSrc) ||
              (volumeSource == toVolumeSource(AUDIO_STREAM_NOTIFICATION)) ||
@@ -5822,31 +5819,33 @@
         if (isStreamActive(AUDIO_STREAM_MUSIC, SONIFICATION_HEADSET_MUSIC_DELAY) ||
                 mLimitRingtoneVolume) {
             volumeDb += SONIFICATION_HEADSET_VOLUME_FACTOR_DB;
-            audio_devices_t musicDevice =
+            DeviceTypeSet musicDevice =
                     mEngine->getOutputDevicesForAttributes(attributes_initializer(AUDIO_USAGE_MEDIA),
                                                            nullptr, true /*fromCache*/).types();
             auto &musicCurves = getVolumeCurves(AUDIO_STREAM_MUSIC);
-            float musicVolDb = computeVolume(musicCurves, musicVolumeSrc,
-                                             musicCurves.getVolumeIndex(musicDevice), musicDevice);
+            float musicVolDb = computeVolume(musicCurves,
+                                             musicVolumeSrc,
+                                             musicCurves.getVolumeIndex(musicDevice),
+                                             musicDevice);
             float minVolDb = (musicVolDb > SONIFICATION_HEADSET_VOLUME_MIN_DB) ?
                         musicVolDb : SONIFICATION_HEADSET_VOLUME_MIN_DB;
             if (volumeDb > minVolDb) {
                 volumeDb = minVolDb;
                 ALOGV("computeVolume limiting volume to %f musicVol %f", minVolDb, musicVolDb);
             }
-            if (device & (AUDIO_DEVICE_OUT_BLUETOOTH_A2DP |
-                          AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES)) {
+            if (!Intersection(deviceTypes, {AUDIO_DEVICE_OUT_BLUETOOTH_A2DP,
+                    AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES}).empty()) {
                 // on A2DP, also ensure notification volume is not too low compared to media when
                 // intended to be played
                 if ((volumeDb > -96.0f) &&
                         (musicVolDb - SONIFICATION_A2DP_MAX_MEDIA_DIFF_DB > volumeDb)) {
-                    ALOGV("%s increasing volume for volume source=%d device=0x%X from %f to %f",
-                          __func__, volumeSource, device, volumeDb,
+                    ALOGV("%s increasing volume for volume source=%d device=%s from %f to %f",
+                          __func__, volumeSource, dumpDeviceTypes(deviceTypes).c_str(), volumeDb,
                           musicVolDb - SONIFICATION_A2DP_MAX_MEDIA_DIFF_DB);
                     volumeDb = musicVolDb - SONIFICATION_A2DP_MAX_MEDIA_DIFF_DB;
                 }
             }
-        } else if ((Volume::getDeviceForVolume(device) != AUDIO_DEVICE_OUT_SPEAKER) ||
+        } else if ((Volume::getDeviceForVolume(deviceTypes) != AUDIO_DEVICE_OUT_SPEAKER) ||
                    (!(volumeSource == alarmVolumeSrc || volumeSource == ringVolumeSrc))) {
             volumeDb += SONIFICATION_HEADSET_VOLUME_FACTOR_DB;
         }
@@ -5885,7 +5884,7 @@
                                                VolumeSource volumeSource,
                                                int index,
                                                const sp<AudioOutputDescriptor>& outputDesc,
-                                               audio_devices_t device,
+                                               DeviceTypeSet deviceTypes,
                                                int delayMs,
                                                bool force)
 {
@@ -5911,17 +5910,20 @@
              volumeSource, forceUseForComm);
         return INVALID_OPERATION;
     }
-    if (device == AUDIO_DEVICE_NONE) {
-        device = outputDesc->devices().types();
+    if (deviceTypes.empty()) {
+        deviceTypes = outputDesc->devices().types();
     }
 
-    float volumeDb = computeVolume(curves, volumeSource, index, device);
-    if (outputDesc->isFixedVolume(device) ||
+    float volumeDb = computeVolume(curves, volumeSource, index, deviceTypes);
+    if (outputDesc->isFixedVolume(deviceTypes) ||
             // Force VoIP volume to max for bluetooth SCO
-            ((isVoiceVolSrc || isBtScoVolSrc) && (device & AUDIO_DEVICE_OUT_ALL_SCO) != 0)) {
+
+            ((isVoiceVolSrc || isBtScoVolSrc) &&
+                    isSingleDeviceType(deviceTypes, audio_is_bluetooth_out_sco_device))) {
         volumeDb = 0.0f;
     }
-    outputDesc->setVolume(volumeDb, volumeSource, curves.getStreamTypes(), device, delayMs, force);
+    outputDesc->setVolume(
+            volumeDb, volumeSource, curves.getStreamTypes(), deviceTypes, delayMs, force);
 
     if (isVoiceVolSrc || isBtScoVolSrc) {
         float voiceVolume;
@@ -5940,15 +5942,16 @@
 }
 
 void AudioPolicyManager::applyStreamVolumes(const sp<AudioOutputDescriptor>& outputDesc,
-                                                audio_devices_t device,
-                                                int delayMs,
-                                                bool force)
+                                            const DeviceTypeSet& deviceTypes,
+                                            int delayMs,
+                                            bool force)
 {
     ALOGVV("applyStreamVolumes() for device %08x", device);
     for (const auto &volumeGroup : mEngine->getVolumeGroups()) {
         auto &curves = getVolumeCurves(toVolumeSource(volumeGroup));
         checkAndSetVolume(curves, toVolumeSource(volumeGroup),
-                          curves.getVolumeIndex(device), outputDesc, device, delayMs, force);
+                          curves.getVolumeIndex(deviceTypes),
+                          outputDesc, deviceTypes, delayMs, force);
     }
 }
 
@@ -5956,7 +5959,7 @@
                                          bool on,
                                          const sp<AudioOutputDescriptor>& outputDesc,
                                          int delayMs,
-                                         audio_devices_t device)
+                                         DeviceTypeSet deviceTypes)
 {
     std::vector<VolumeSource> sourcesToMute;
     for (auto attributes: mEngine->getAllAttributesForProductStrategy(strategy)) {
@@ -5968,7 +5971,7 @@
         }
     }
     for (auto source : sourcesToMute) {
-        setVolumeSourceMute(source, on, outputDesc, delayMs, device);
+        setVolumeSourceMute(source, on, outputDesc, delayMs, deviceTypes);
     }
 
 }
@@ -5977,10 +5980,10 @@
                                              bool on,
                                              const sp<AudioOutputDescriptor>& outputDesc,
                                              int delayMs,
-                                             audio_devices_t device)
+                                             DeviceTypeSet deviceTypes)
 {
-    if (device == AUDIO_DEVICE_NONE) {
-        device = outputDesc->devices().types();
+    if (deviceTypes.empty()) {
+        deviceTypes = outputDesc->devices().types();
     }
     auto &curves = getVolumeCurves(volumeSource);
     if (on) {
@@ -5989,7 +5992,7 @@
                     (volumeSource != toVolumeSource(AUDIO_STREAM_ENFORCED_AUDIBLE) ||
                      (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) ==
                       AUDIO_POLICY_FORCE_NONE))) {
-                checkAndSetVolume(curves, volumeSource, 0, outputDesc, device, delayMs);
+                checkAndSetVolume(curves, volumeSource, 0, outputDesc, deviceTypes, delayMs);
             }
         }
         // increment mMuteCount after calling checkAndSetVolume() so that volume change is not
@@ -6002,9 +6005,9 @@
         }
         if (outputDesc->decMuteCount(volumeSource) == 0) {
             checkAndSetVolume(curves, volumeSource,
-                              curves.getVolumeIndex(device),
+                              curves.getVolumeIndex(deviceTypes),
                               outputDesc,
-                              device,
+                              deviceTypes,
                               delayMs);
         }
     }
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index e17ced8..707e4b0 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -176,7 +176,7 @@
                                      IVolumeCurves &volumeCurves);
 
         status_t getVolumeIndex(const IVolumeCurves &curves, int &index,
-                                audio_devices_t device) const;
+                                const DeviceTypeSet& deviceTypes) const;
 
         // return the strategy corresponding to a given stream type
         virtual uint32_t getStrategyForStream(audio_stream_type_t stream)
@@ -422,7 +422,7 @@
         virtual float computeVolume(IVolumeCurves &curves,
                                     VolumeSource volumeSource,
                                     int index,
-                                    audio_devices_t device);
+                                    const DeviceTypeSet& deviceTypes);
 
         // rescale volume index from srcStream within range of dstStream
         int rescaleVolumeIndex(int srcIndex,
@@ -432,12 +432,13 @@
         virtual status_t checkAndSetVolume(IVolumeCurves &curves,
                                            VolumeSource volumeSource, int index,
                                            const sp<AudioOutputDescriptor>& outputDesc,
-                                           audio_devices_t device,
+                                           DeviceTypeSet deviceTypes,
                                            int delayMs = 0, bool force = false);
 
         // apply all stream volumes to the specified output and device
         void applyStreamVolumes(const sp<AudioOutputDescriptor>& outputDesc,
-                                audio_devices_t device, int delayMs = 0, bool force = false);
+                                const DeviceTypeSet& deviceTypes,
+                                int delayMs = 0, bool force = false);
 
         /**
          * @brief setStrategyMute Mute or unmute all active clients on the considered output
@@ -452,7 +453,7 @@
                              bool on,
                              const sp<AudioOutputDescriptor>& outputDesc,
                              int delayMs = 0,
-                             audio_devices_t device = AUDIO_DEVICE_NONE);
+                             DeviceTypeSet deviceTypes = DeviceTypeSet());
 
         /**
          * @brief setVolumeSourceMute Mute or unmute the volume source on the specified output
@@ -467,7 +468,7 @@
                                  bool on,
                                  const sp<AudioOutputDescriptor>& outputDesc,
                                  int delayMs = 0,
-                                 audio_devices_t device = AUDIO_DEVICE_NONE);
+                                 DeviceTypeSet deviceTypes = DeviceTypeSet());
 
         audio_mode_t getPhoneState();
 
@@ -653,10 +654,6 @@
         uint32_t updateCallRouting(const DeviceVector &rxDevices, uint32_t delayMs = 0);
         sp<AudioPatch> createTelephonyPatch(bool isRx, const sp<DeviceDescriptor> &device,
                                             uint32_t delayMs);
-        sp<DeviceDescriptor> findDevice(
-                const DeviceVector& devices, audio_devices_t device) const;
-        audio_devices_t getModuleDeviceTypes(
-                const DeviceVector& devices, const char *moduleId) const;
         bool isDeviceOfModule(const sp<DeviceDescriptor>& devDesc, const char *moduleId) const;
 
         status_t startSource(const sp<SwAudioOutputDescriptor>& outputDesc,