Merge "Audio: Add XML schema for audio policy configuration" into oc-dev
diff --git a/audio/2.0/config/audio_policy_configuration.xsd b/audio/2.0/config/audio_policy_configuration.xsd
new file mode 100644
index 0000000..48b9a9b
--- /dev/null
+++ b/audio/2.0/config/audio_policy_configuration.xsd
@@ -0,0 +1,496 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright (C) 2017 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.
+-->
+<!-- TODO: define a targetNamespace. Note that it will break retrocompatibility -->
+<xs:schema version="2.0"
+ elementFormDefault="qualified"
+ attributeFormDefault="unqualified"
+ xmlns:xs="http://www.w3.org/2001/XMLSchema">
+ <!-- List the config versions supported by audio policy. -->
+ <xs:simpleType name="version">
+ <xs:restriction base="xs:decimal">
+ <xs:enumeration value="1.0"/>
+ </xs:restriction>
+ </xs:simpleType>
+ <xs:simpleType name="halVersion">
+ <xs:annotation>
+ <xs:documentation xml:lang="en">
+ Version of the interface the hal implements.
+ </xs:documentation>
+ </xs:annotation>
+ <xs:restriction base="xs:decimal">
+ <!-- List of HAL versions supported by the framework. -->
+ <xs:enumeration value="2.0"/>
+ <xs:enumeration value="3.0"/>
+ </xs:restriction>
+ </xs:simpleType>
+ <xs:element name="audioPolicyConfiguration">
+ <xs:complexType>
+ <xs:sequence>
+ <xs:element name="globalConfiguration" type="globalConfiguration"/>
+ <xs:element name="modules" type="modules" maxOccurs="unbounded"/>
+ <xs:element name="volumes" type="volumes" maxOccurs="unbounded"/>
+ </xs:sequence>
+ <xs:attribute name="version" type="version"/>
+ </xs:complexType>
+ <xs:key name="moduleNameKey">
+ <xs:selector xpath="modules/module"/>
+ <xs:field xpath="@name"/>
+ </xs:key>
+ <xs:key name="devicePortNameGlobalKey">
+ <xs:selector xpath="modules/module/devicePorts/devicePort"/>
+ <xs:field xpath="@tagName"/>
+ </xs:key>
+ <xs:unique name="volumeTargetUniqueness">
+ <xs:selector xpath="volumes/volume"/>
+ <xs:field xpath="@stream"/>
+ <xs:field xpath="@deviceCategory"/>
+ </xs:unique>
+ <xs:key name="volumeCurveNameKey">
+ <xs:selector xpath="volumes/reference"/>
+ <xs:field xpath="@name"/>
+ </xs:key>
+ <xs:keyref name="volumeCurveRef" refer="volumeCurveNameKey">
+ <xs:selector xpath="volumes/volume"/>
+ <xs:field xpath="@ref"/>
+ </xs:keyref>
+ </xs:element>
+ <xs:complexType name="globalConfiguration">
+ <xs:attribute name="speaker_drc_enabled" type="xs:boolean" use="required"/>
+ </xs:complexType>
+ <!-- Enum values of IDevicesFactory::Device
+ TODO: generate from hidl to avoid manual sync. -->
+ <xs:simpleType name="halName">
+ <xs:restriction base="xs:string">
+ <xs:enumeration value="primary"/>
+ <xs:enumeration value="a2dp"/>
+ <xs:enumeration value="usb"/>
+ <xs:enumeration value="r_submix"/>
+ <xs:enumeration value="codec_offload"/>
+ <xs:enumeration value="stub"/>
+ </xs:restriction>
+ </xs:simpleType>
+ <xs:complexType name="modules">
+ <xs:annotation>
+ <xs:documentation xml:lang="en">
+ There should be one section per audio HW module present on the platform.
+ Each <module/> contains two mandatory tags: “halVersion” and “name”.
+ The module "name" is the same as in previous .conf file.
+ Each module must contain the following sections:
+ - <devicePorts/>: a list of device descriptors for all
+ input and output devices accessible via this module.
+ This contains both permanently attached devices and removable devices.
+ - <mixPorts/>: listing all output and input streams exposed by the audio HAL
+ - <routes/>: list of possible connections between input
+ and output devices or between stream and devices.
+ A <route/> is defined by a set of 3 attributes:
+ -"type": mux|mix means all sources are mutual exclusive (mux) or can be mixed (mix)
+ -"sink": the sink involved in this route
+ -"sources": all the sources than can be connected to the sink via this route
+ - <attachedDevices/>: permanently attached devices.
+ The attachedDevices section is a list of devices names.
+ Their names correspond to device names defined in "devicePorts" section.
+ - <defaultOutputDevice/> is the device to be used when no policy rule applies
+ </xs:documentation>
+ </xs:annotation>
+ <xs:sequence>
+ <xs:element name="module" maxOccurs="unbounded">
+ <xs:complexType>
+ <xs:sequence>
+ <xs:element name="attachedDevices" type="attachedDevices" minOccurs="0">
+ <xs:unique name="attachedDevicesUniqueness">
+ <xs:selector xpath="item"/>
+ <xs:field xpath="."/>
+ </xs:unique>
+ </xs:element>
+ <xs:element name="defaultOutputDevice" type="xs:token" minOccurs="0"/>
+ <xs:element name="mixPorts" type="mixPorts" minOccurs="0"/>
+ <xs:element name="devicePorts" type="devicePorts" minOccurs="0"/>
+ <xs:element name="routes" type="routes" minOccurs="0"/>
+ </xs:sequence>
+ <xs:attribute name="name" type="halName" use="required"/>
+ <xs:attribute name="halVersion" type="halVersion" use="required"/>
+ </xs:complexType>
+ <xs:unique name="mixPortNameUniqueness">
+ <xs:selector xpath="mixPorts/mixPort"/>
+ <xs:field xpath="@name"/>
+ </xs:unique>
+ <!-- Although this key constraint is redundant with devicePortNameGlobalKey,
+ the set is used to constraint defaultOutputDevice and attachedDevice
+ to reference a devicePort of the same module. -->
+ <xs:key name="devicePortNameKey">
+ <xs:selector xpath="devicePorts/devicePort"/>
+ <xs:field xpath="@tagName"/>
+ </xs:key>
+ <xs:keyref name="defaultOutputDeviceRef" refer="devicePortNameKey">
+ <xs:selector xpath="defaultOutputDevice"/>
+ <xs:field xpath="."/>
+ </xs:keyref>
+ <xs:keyref name="attachedDeviceRef" refer="devicePortNameKey">
+ <xs:selector xpath="attachedDevices/item"/>
+ <xs:field xpath="."/>
+ </xs:keyref>
+ <!-- The following 3 constraints try to make sure each sink port
+ is reference in one an only one route. -->
+ <xs:key name="routeSinkKey">
+ <!-- predicate [@type='sink'] does not work in xsd 1.0 -->
+ <xs:selector xpath="devicePorts/devicePort|mixPorts/mixPort"/>
+ <xs:field xpath="@tagName|@name"/>
+ </xs:key>
+ <xs:keyref name="routeSinkRef" refer="routeSinkKey">
+ <xs:selector xpath="routes/route"/>
+ <xs:field xpath="@sink"/>
+ </xs:keyref>
+ <xs:unique name="routeUniqueness">
+ <xs:selector xpath="routes/route"/>
+ <xs:field xpath="@sink"/>
+ </xs:unique>
+ </xs:element>
+ </xs:sequence>
+ </xs:complexType>
+ <xs:complexType name="attachedDevices">
+ <xs:sequence>
+ <xs:element name="item" type="xs:token" minOccurs="0" maxOccurs="unbounded"/>
+ </xs:sequence>
+ </xs:complexType>
+ <!-- TODO: separate values by space for better xsd validations. -->
+ <xs:simpleType name="audioInOutFlags">
+ <xs:annotation>
+ <xs:documentation xml:lang="en">
+ "|" separated list of audio_output_flags_t or audio_input_flags_t.
+ </xs:documentation>
+ </xs:annotation>
+ <xs:restriction base="xs:string">
+ <xs:pattern value="|[_A-Z]+(\|[_A-Z]+)*"/>
+ </xs:restriction>
+ </xs:simpleType>
+ <xs:simpleType name="role">
+ <xs:restriction base="xs:string">
+ <xs:enumeration value="sink"/>
+ <xs:enumeration value="source"/>
+ </xs:restriction>
+ </xs:simpleType>
+ <xs:complexType name="mixPorts">
+ <xs:sequence>
+ <xs:element name="mixPort" minOccurs="0" maxOccurs="unbounded">
+ <xs:complexType>
+ <xs:sequence>
+ <xs:element name="profile" type="profile" minOccurs="0" maxOccurs="unbounded"/>
+ </xs:sequence>
+ <xs:attribute name="name" type="xs:token" use="required"/>
+ <xs:attribute name="role" type="role" use="required"/>
+ <xs:attribute name="flags" type="audioInOutFlags"/>
+ </xs:complexType>
+ <xs:unique name="mixPortProfileUniqueness">
+ <xs:selector xpath="profile"/>
+ <xs:field xpath="format"/>
+ <xs:field xpath="samplingRate"/>
+ <xs:field xpath="channelMasks"/>
+ </xs:unique>
+ </xs:element>
+ </xs:sequence>
+ </xs:complexType>
+ <!-- Enum values of audio_device_t in audio.h
+ TODO: generate from hidl to avoid manual sync.
+ TODO: separate source and sink in the xml for better xsd validations. -->
+ <xs:simpleType name="audioDevice">
+ <xs:restriction base="xs:string">
+ <xs:enumeration value="AUDIO_DEVICE_NONE"/>
+
+ <xs:enumeration value="AUDIO_DEVICE_OUT_EARPIECE"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_SPEAKER"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_SPEAKER_SAFE"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_WIRED_HEADSET"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_WIRED_HEADPHONE"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_SCO"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_ALL_SCO"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_ALL_A2DP"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_AUX_DIGITAL"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_HDMI"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_USB_ACCESSORY"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_USB_DEVICE"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_ALL_USB"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_REMOTE_SUBMIX"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_TELEPHONY_TX"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_LINE"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_HDMI_ARC"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_SPDIF"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_FM"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_AUX_LINE"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_IP"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_BUS"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_PROXY"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_USB_HEADSET"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_DEFAULT"/>
+ <xs:enumeration value="AUDIO_DEVICE_OUT_STUB"/>
+
+ <!-- Due to the xml format, IN types can not be a separated from OUT types -->
+ <xs:enumeration value="AUDIO_DEVICE_IN_COMMUNICATION"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_AMBIENT"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_BUILTIN_MIC"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_ALL_SCO"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_WIRED_HEADSET"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_AUX_DIGITAL"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_HDMI"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_TELEPHONY_RX"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_VOICE_CALL"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_BACK_MIC"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_REMOTE_SUBMIX"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_USB_ACCESSORY"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_USB_DEVICE"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_ALL_USB"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_FM_TUNER"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_TV_TUNER"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_LINE"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_SPDIF"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_BLUETOOTH_A2DP"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_LOOPBACK"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_IP"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_BUS"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_PROXY"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_USB_HEADSET"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_DEFAULT"/>
+ <xs:enumeration value="AUDIO_DEVICE_IN_STUB"/>
+ </xs:restriction>
+ </xs:simpleType>
+ <!-- Enum values of audio_format_t in audio.h
+ TODO: generate from hidl to avoid manual sync. -->
+ <xs:simpleType name="audioFormat">
+ <xs:restriction base="xs:string">
+ <xs:enumeration value="AUDIO_FORMAT_PCM_16_BIT" />
+ <xs:enumeration value="AUDIO_FORMAT_PCM_8_BIT"/>
+ <xs:enumeration value="AUDIO_FORMAT_PCM_32_BIT"/>
+ <xs:enumeration value="AUDIO_FORMAT_PCM_8_24_BIT"/>
+ <xs:enumeration value="AUDIO_FORMAT_PCM_FLOAT"/>
+ <xs:enumeration value="AUDIO_FORMAT_PCM_24_BIT_PACKED"/>
+ <xs:enumeration value="AUDIO_FORMAT_MP3"/>
+ <xs:enumeration value="AUDIO_FORMAT_AMR_NB"/>
+ <xs:enumeration value="AUDIO_FORMAT_AMR_WB"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_MAIN"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_LC"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_SSR"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_LTP"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_HE_V1"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_SCALABLE"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_ERLC"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_LD"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_HE_V2"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_ELD"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_MAIN"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LC"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_SSR"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LTP"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_HE_V1"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_SCALABLE"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_ERLC"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_LD"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_HE_V2"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS_ELD"/>
+ <xs:enumeration value="AUDIO_FORMAT_VORBIS"/>
+ <xs:enumeration value="AUDIO_FORMAT_HE_AAC_V1"/>
+ <xs:enumeration value="AUDIO_FORMAT_HE_AAC_V2"/>
+ <xs:enumeration value="AUDIO_FORMAT_OPUS"/>
+ <xs:enumeration value="AUDIO_FORMAT_AC3"/>
+ <xs:enumeration value="AUDIO_FORMAT_E_AC3"/>
+ <xs:enumeration value="AUDIO_FORMAT_DTS"/>
+ <xs:enumeration value="AUDIO_FORMAT_DTS_HD"/>
+ <xs:enumeration value="AUDIO_FORMAT_IEC61937"/>
+ <xs:enumeration value="AUDIO_FORMAT_DOLBY_TRUEHD"/>
+ <xs:enumeration value="AUDIO_FORMAT_EVRC"/>
+ <xs:enumeration value="AUDIO_FORMAT_EVRCB"/>
+ <xs:enumeration value="AUDIO_FORMAT_EVRCWB"/>
+ <xs:enumeration value="AUDIO_FORMAT_EVRCNW"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_ADIF"/>
+ <xs:enumeration value="AUDIO_FORMAT_WMA"/>
+ <xs:enumeration value="AUDIO_FORMAT_WMA_PRO"/>
+ <xs:enumeration value="AUDIO_FORMAT_AMR_WB_PLUS"/>
+ <xs:enumeration value="AUDIO_FORMAT_MP2"/>
+ <xs:enumeration value="AUDIO_FORMAT_QCELP"/>
+ <xs:enumeration value="AUDIO_FORMAT_DSD"/>
+ <xs:enumeration value="AUDIO_FORMAT_FLAC"/>
+ <xs:enumeration value="AUDIO_FORMAT_ALAC"/>
+ <xs:enumeration value="AUDIO_FORMAT_APE"/>
+ <xs:enumeration value="AUDIO_FORMAT_AAC_ADTS"/>
+ <xs:enumeration value="AUDIO_FORMAT_SBC"/>
+ <xs:enumeration value="AUDIO_FORMAT_APTX"/>
+ <xs:enumeration value="AUDIO_FORMAT_APTX_HD"/>
+ <xs:enumeration value="AUDIO_FORMAT_AC4"/>
+ <xs:enumeration value="AUDIO_FORMAT_LDAC"/>
+ </xs:restriction>
+ </xs:simpleType>
+ <!-- TODO: Change to a space separated list to xsd enforce correctness. -->
+ <xs:simpleType name="samplingRates">
+ <xs:restriction base="xs:string">
+ <xs:pattern value="[0-9]+(,[0-9]+)*"/>
+ </xs:restriction>
+ </xs:simpleType>
+ <!-- TODO: Change to a space separated list to xsd enforce correctness. -->
+ <xs:simpleType name="channelMask">
+ <xs:annotation>
+ <xs:documentation xml:lang="en">
+ Comma (",") separated list of channel flags
+ from audio_channel_mask_t.
+ </xs:documentation>
+ </xs:annotation>
+ <xs:restriction base="xs:string">
+ <xs:pattern value="[_A-Z][_A-Z0-9]*(,[_A-Z][_A-Z0-9]*)*"/>
+ </xs:restriction>
+ </xs:simpleType>
+ <xs:complexType name="profile">
+ <xs:attribute name="name" type="xs:token" use="required"/>
+ <xs:attribute name="format" type="audioFormat" use="required"/>
+ <xs:attribute name="samplingRates" type="samplingRates" use="required"/>
+ <xs:attribute name="channelMasks" type="channelMask" use="required"/>
+ </xs:complexType>
+ <xs:complexType name="devicePorts">
+ <xs:sequence>
+ <xs:element name="devicePort" minOccurs="0" maxOccurs="unbounded">
+ <xs:complexType>
+ <xs:sequence>
+ <xs:element name="profile" type="profile" minOccurs="0" maxOccurs="unbounded"/>
+ </xs:sequence>
+ <xs:attribute name="tagName" type="xs:token" use="required"/>
+ <xs:attribute name="type" type="audioDevice" use="required"/>
+ <xs:attribute name="role" type="role" use="required"/>
+ </xs:complexType>
+ <xs:unique name="devicePortProfileUniqueness">
+ <xs:selector xpath="profile"/>
+ <xs:field xpath="format"/>
+ <xs:field xpath="samplingRate"/>
+ <xs:field xpath="channelMasks"/>
+ </xs:unique>
+ </xs:element>
+ </xs:sequence>
+ </xs:complexType>
+ <xs:simpleType name="mixType">
+ <xs:restriction base="xs:string">
+ <xs:enumeration value="mix"/>
+ <xs:enumeration value="mux"/>
+ </xs:restriction>
+ </xs:simpleType>
+ <xs:complexType name="routes">
+ <xs:sequence>
+ <xs:element name="route" minOccurs="0" maxOccurs="unbounded">
+ <xs:annotation>
+ <xs:documentation xml:lang="en">
+ List all available sources for a given sink.
+ </xs:documentation>
+ </xs:annotation>
+ <xs:complexType>
+ <xs:attribute name="type" type="mixType" use="required"/>
+ <xs:attribute name="sink" type="xs:string" use="required"/>
+ <xs:attribute name="sources" type="xs:string" use="required"/>
+ </xs:complexType>
+ </xs:element>
+ </xs:sequence>
+ </xs:complexType>
+ <xs:complexType name="volumes">
+ <xs:sequence>
+ <xs:element name="volume" type="volume" minOccurs="0" maxOccurs="unbounded"/>
+ <xs:element name="reference" type="reference" minOccurs="0" maxOccurs="unbounded">
+ </xs:element>
+ </xs:sequence>
+ </xs:complexType>
+ <!-- TODO: Always require a ref for better xsd validations.
+ Currently a volume could have no points nor ref
+ as it can not be forbidden by xsd 1.0.-->
+ <xs:simpleType name="volumePoint">
+ <xs:annotation>
+ <xs:documentation xml:lang="en">
+ Comma separated pair of number.
+ The fist one is the framework level (between 0 and 100).
+ The second one is the volume to send to the HAL.
+ The framework will interpolate volumes not specified.
+ Their MUST be at least 2 points specified.
+ </xs:documentation>
+ </xs:annotation>
+ <xs:restriction base="xs:string">
+ <xs:pattern value="([0-9]{1,2}|100),-?[0-9]+"/>
+ </xs:restriction>
+ </xs:simpleType>
+ <!-- Enum values of audio_stream_type_t in audio-base.h
+ TODO: generate from hidl to avoid manual sync. -->
+ <xs:simpleType name="stream">
+ <xs:restriction base="xs:string">
+ <xs:enumeration value="AUDIO_STREAM_VOICE_CALL"/>
+ <xs:enumeration value="AUDIO_STREAM_SYSTEM"/>
+ <xs:enumeration value="AUDIO_STREAM_RING"/>
+ <xs:enumeration value="AUDIO_STREAM_MUSIC"/>
+ <xs:enumeration value="AUDIO_STREAM_ALARM"/>
+ <xs:enumeration value="AUDIO_STREAM_NOTIFICATION"/>
+ <xs:enumeration value="AUDIO_STREAM_BLUETOOTH_SCO"/>
+ <xs:enumeration value="AUDIO_STREAM_ENFORCED_AUDIBLE"/>
+ <xs:enumeration value="AUDIO_STREAM_DTMF"/>
+ <xs:enumeration value="AUDIO_STREAM_TTS"/>
+ <xs:enumeration value="AUDIO_STREAM_ACCESSIBILITY"/>
+ <xs:enumeration value="AUDIO_STREAM_REROUTING"/>
+ <xs:enumeration value="AUDIO_STREAM_PATCH"/>
+ </xs:restriction>
+ </xs:simpleType>
+ <!-- Enum values of device_category from Volume.h.
+ TODO: generate from hidl to avoid manual sync. -->
+ <xs:simpleType name="deviceCategory">
+ <xs:restriction base="xs:string">
+ <xs:enumeration value="DEVICE_CATEGORY_HEADSET"/>
+ <xs:enumeration value="DEVICE_CATEGORY_SPEAKER"/>
+ <xs:enumeration value="DEVICE_CATEGORY_EARPIECE"/>
+ <xs:enumeration value="DEVICE_CATEGORY_EXT_MEDIA"/>
+ </xs:restriction>
+ </xs:simpleType>
+ <xs:complexType name="volume">
+ <xs:annotation>
+ <xs:documentation xml:lang="en">
+ Volume section defines a volume curve for a given use case and device category.
+ It contains a list of points of this curve expressing the attenuation in Millibels
+ for a given volume index from 0 to 100.
+ <volume stream="AUDIO_STREAM_MUSIC" deviceCategory="DEVICE_CATEGORY_SPEAKER">
+ <point>0,-9600</point>
+ <point>100,0</point>
+ </volume>
+
+ It may also reference a reference/@name to avoid duplicating curves.
+ <volume stream="AUDIO_STREAM_MUSIC" deviceCategory="DEVICE_CATEGORY_SPEAKER"
+ ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
+ <reference name="DEFAULT_MEDIA_VOLUME_CURVE">
+ <point>0,-9600</point>
+ <point>100,0</point>
+ </reference>
+ </xs:documentation>
+ </xs:annotation>
+ <xs:sequence>
+ <xs:element name="point" type="volumePoint" minOccurs="0" maxOccurs="unbounded"/>
+ </xs:sequence>
+ <xs:attribute name="stream" type="stream"/>
+ <xs:attribute name="deviceCategory" type="deviceCategory"/>
+ <xs:attribute name="ref" type="xs:token" use="optional"/>
+ </xs:complexType>
+ <xs:complexType name="reference">
+ <xs:sequence>
+ <xs:element name="point" type="volumePoint" minOccurs="2" maxOccurs="unbounded"/>
+ </xs:sequence>
+ <xs:attribute name="name" type="xs:token" use="required"/>
+ </xs:complexType>
+</xs:schema>