Add playbook and roles for Audio Pi

playbooks/roles/bluetooth_audio_sink/templates/machine-info.j2

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+PRETTY_HOSTNAME=Audio Pi

playbooks/roles/bluetooth_audio_sink/templates/main.conf.j2

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+[General]
+
+# Defaults to 'BlueZ X.YZ', if Name is not set here and plugin 'hostname' is not loaded.
+# The plugin 'hostname' is loaded by default and overides the Name set here so
+# consider modifying /etc/machine-info with variable PRETTY_HOSTNAME=<NewName> instead.
+Name = {{ bluetooth_audio_sink__name }}
+
+# Default device class. Only the major and minor device class bits are
+# considered. Defaults to '0x000000'.
+Class = 0x200414 # Audio (Major Service Class), Audio/Video (Major Device Class), Loudspeaker (Minor Device Class)
+
+# How long to stay in discoverable mode before going back to non-discoverable
+# The value is in seconds. Default is 180, i.e. 3 minutes.
+# 0 = disable timer, i.e. stay discoverable forever
+#DiscoverableTimeout = 0
+DiscoverableTimeout = 0
+
+# Always allow pairing even if there are no agent registered
+# Possible values: true, false
+# Default: false
+#AlwaysPairable = false
+AlwaysPairable = true
+
+# How long to stay in pairable mode before going back to non-discoverable
+# The value is in seconds. Default is 0.
+# 0 = disable timer, i.e. stay pairable forever
+#PairableTimeout = 0
+PairableTimeout = 0
+
+# Use vendor id source (assigner), vendor, product and version information for
+# DID profile support. The values are separated by ":" and assigner, VID, PID
+# and version.
+# Possible vendor id source values: bluetooth, usb (defaults to usb)
+#DeviceID = bluetooth:1234:5678:abcd
+
+# Do reverse service discovery for previously unknown devices that connect to
+# us. For BR/EDR this option is really only needed for qualification since the
+# BITE tester doesn't like us doing reverse SDP for some test cases, for LE
+# this disables the GATT client functionally so it can be used in system which
+# can only operate as peripheral.
+# Defaults to 'true'.
+#ReverseServiceDiscovery = true
+
+# Enable name resolving after inquiry. Set it to 'false' if you don't need
+# remote devices name and want shorter discovery cycle. Defaults to 'true'.
+#NameResolving = true
+
+# Enable runtime persistency of debug link keys. Default is false which
+# makes debug link keys valid only for the duration of the connection
+# that they were created for.
+#DebugKeys = false
+
+# Restricts all controllers to the specified transport. Default value
+# is "dual", i.e. both BR/EDR and LE enabled (when supported by the HW).
+# Possible values: "dual", "bredr", "le"
+#ControllerMode = dual
+
+# Enables Multi Profile Specification support. This allows to specify if
+# system supports only Multiple Profiles Single Device (MPSD) configuration
+# or both Multiple Profiles Single Device (MPSD) and Multiple Profiles Multiple
+# Devices (MPMD) configurations.
+# Possible values: "off", "single", "multiple"
+#MultiProfile = off
+
+# Permanently enables the Fast Connectable setting for adapters that
+# support it. When enabled other devices can connect faster to us,
+# however the tradeoff is increased power consumptions. This feature
+# will fully work only on kernel version 4.1 and newer. Defaults to
+# 'false'.
+#FastConnectable = false
+
+# Default privacy setting.
+# Enables use of private address.
+# Possible values: "off", "device", "network"
+# "network" option not supported currently
+# Defaults to "off"
+# Privacy = off
+
+# Specify the policy to the JUST-WORKS repairing initiated by peer
+# Possible values: "never", "confirm", "always"
+# Defaults to "never"
+#JustWorksRepairing = never
+JustWorksRepairing = always
+
+# How long to keep temporary devices around
+# The value is in seconds. Default is 30.
+# 0 = disable timer, i.e. never keep temporary devices
+#TemporaryTimeout = 30
+
+# Enables the device to issue an SDP request to update known services when
+# profile is connected. Defaults to true.
+#RefreshDiscovery = true
+
+Enable=Source,Sink,Media
+
+[Controller]
+# The following values are used to load default adapter parameters.  BlueZ loads
+# the values into the kernel before the adapter is powered if the kernel
+# supports the MGMT_LOAD_DEFAULT_PARAMETERS command. If a value isn't provided,
+# the kernel will be initialized to it's default value.  The actual value will
+# vary based on the kernel version and thus aren't provided here.
+# The Bluetooth Core Specification should be consulted for the meaning and valid
+# domain of each of these values.
+
+# BR/EDR Page scan activity configuration
+#BRPageScanType=
+#BRPageScanInterval=
+#BRPageScanWindow=
+
+# BR/EDR Inquiry scan activity configuration
+#BRInquiryScanType=
+#BRInquiryScanInterval=
+#BRInquiryScanWindow=
+
+# BR/EDR Link supervision timeout
+#BRLinkSupervisionTimeout=
+
+# BR/EDR Page Timeout
+#BRPageTimeout=
+
+# BR/EDR Sniff Intervals
+#BRMinSniffInterval=
+#BRMaxSniffInterval=
+
+# LE advertisement interval (used for legacy advertisement interface only)
+#LEMinAdvertisementInterval=
+#LEMaxAdvertisementInterval=
+#LEMultiAdvertisementRotationInterval=
+
+# LE scanning parameters used for passive scanning supporting auto connect
+# scenarios
+#LEScanIntervalAutoConnect=
+#LEScanWindowAutoConnect=
+
+# LE scanning parameters used for passive scanning supporting wake from suspend
+# scenarios
+#LEScanIntervalSuspend=
+#LEScanWindowSuspend=
+
+# LE scanning parameters used for active scanning supporting discovery
+# proceedure
+#LEScanIntervalDiscovery=
+#LEScanWindowDiscovery=
+
+# LE scanning parameters used for passive scanning supporting the advertisement
+# monitor Apis
+#LEScanIntervalAdvMonitor=
+#LEScanWindowAdvMonitor=
+
+# LE scanning parameters used for connection establishment.
+#LEScanIntervalConnect=
+#LEScanWindowConnect=
+
+# LE default connection parameters.  These values are superceeded by any
+# specific values provided via the Load Connection Parameters interface
+#LEMinConnectionInterval=
+#LEMaxConnectionInterval=
+#LEConnectionLatency=
+#LEConnectionSupervisionTimeout=
+#LEAutoconnecttimeout=
+
+[GATT]
+# GATT attribute cache.
+# Possible values:
+# always: Always cache attributes even for devices not paired, this is
+# recommended as it is best for interoperability, with more consistent
+# reconnection times and enables proper tracking of notifications for all
+# devices.
+# yes: Only cache attributes of paired devices.
+# no: Never cache attributes
+# Default: always
+#Cache = always
+
+# Minimum required Encryption Key Size for accessing secured characteristics.
+# Possible values: 0 and 7-16. 0 means don't care.
+# Defaults to 0
+#KeySize = 0
+
+# Exchange MTU size.
+# Possible values: 23-517
+# Defaults to 517
+#ExchangeMTU = 517
+
+# Number of ATT channels
+# Possible values: 1-5 (1 disables EATT)
+# Default to 3
+#Channels = 3
+
+[Policy]
+#
+# The ReconnectUUIDs defines the set of remote services that should try
+# to be reconnected to in case of a link loss (link supervision
+# timeout). The policy plugin should contain a sane set of values by
+# default, but this list can be overridden here. By setting the list to
+# empty the reconnection feature gets disabled.
+#ReconnectUUIDs=00001112-0000-1000-8000-00805f9b34fb,0000111f-0000-1000-8000-00805f9b34fb,0000110a-0000-1000-8000-00805f9b34fb
+
+# ReconnectAttempts define the number of attempts to reconnect after a link
+# lost. Setting the value to 0 disables reconnecting feature.
+#ReconnectAttempts=7
+
+# ReconnectIntervals define the set of intervals in seconds to use in between
+# attempts.
+# If the number of attempts defined in ReconnectAttempts is bigger than the
+# set of intervals the last interval is repeated until the last attempt.
+#ReconnectIntervals=1,2,4,8,16,32,64
+
+# AutoEnable defines option to enable all controllers when they are found.
+# This includes adapters present on start as well as adapters that are plugged
+# in later on. Defaults to 'false'.
+AutoEnable=true