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authorMarcel Holtmann <marcel@holtmann.org>2008-10-03 08:52:57 +0200
committerMarcel Holtmann <marcel@holtmann.org>2008-10-03 08:52:57 +0200
commit24e2fbddccafdd37deb93b0f478979c4c143bdca (patch)
tree8aaaa051731e9ac17a549b37c24cdefd7a06ca04 /doc/control-api.txt
parentd68a57d8bee6643b230b752b4588f66d89e51524 (diff)
Add first draft of AVRCP D-Bus interface specification
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+BlueZ D-Bus Control API description
+***********************************
+
+Copyright (C) 2004-2008 Marcel Holtmann <marcel@holtmann.org>
+Copyright (C) 2007-2008 David Stockwell <dstockwell@frequency-one.com>
+
+
+Control hierarchy
+=================
+
+Service org.bluez
+Interface org.bluez.Control
+Object path [variable prefix]/{hci0,hci1,...}/dev_XX_XX_XX_XX_XX_XX
+
+Methods void Connect()
+
+ Connect to remote device (CT or TG).
+
+ void Disconnect()
+
+ Disconnect remote device.
+
+ dict GetProperties()
+
+ Returns all properties for the interface. See the
+ properties section for available properties.
+
+ boolean SendPassthrough(avc_operation_id key, boolean state,
+ string op_data)
+
+ Called to send Passthrough commands. ONLY valid if
+ BlueZ device is in CT role.
+
+ boolean SendVendorDependent(string op_data)
+
+ Called to send VendorDependent commands, other than
+ Metadata or Events defined in the AVRCP+Metadata
+ specification.
+
+ void ChangePlayback(string status, uint32 elapsed)
+
+ The status can be "playing", "stopped", "paused",
+ "forward-seek", "reverse-seek" or "error". Elapsed is
+ the position within the track in milliseconds.
+
+ void ChangeTrack(dict metadata)
+
+ Called to send the mandated TrackChange event and
+ potential metadata information.
+
+ Current defined metadata information are represented
+ with the following keys:
+
+ Title string (mandatory)
+ Artist string
+ Album string
+ Genre string
+ NumberOfTracks uint32
+ TrackNumber uint32
+ TrackDuration uint32 (in milliseconds)
+
+ void ChangeSetting(string setting, variant value)
+
+ Called to transmit Application Settings, CT Status
+ and the like.
+
+ Currenet defined settings are represented with the
+ following keys:
+
+ Equalizer off, on
+ Repeat off, singletrack, alltracks, group
+ Shuffle off, alltracks, group
+ Scan off, alltracks, group
+ Battery normal, warning, critical, external, fullcharge
+ System powered, unpowered, unplugged
+ Volume uint8
+
+Signals Connected()
+
+ Sent when a successful AVRCP connection has been made
+ to the remote device.
+
+ Disconnected()
+
+ Sent when the AVRCP connection to the remote device
+ has been disconnected.
+
+ Passthrough(uint8 key, boolean state, int32 company_id,
+ string op_data)
+
+ Called when Passthrough command is received from
+ connected device.
+
+ NOTE: according to the AV/C Subpanel Spec, company_id
+ and op_data are passed ONLY when the key is
+ "Vendor_Unique", or 0x7E.
+
+ When the key is NOT 0x7E, the signal returns
+ company_id=-1, and zero-length op_data.
+
+ VendorDependentReceived(string op_data)
+
+ Called when VendorDependent message is received from
+ connected device (except for Metadata defined in
+ Bluetooth SIG AVRCP+Metadata spec).
+
+ TrackChanged(dict metadata)
+
+ Called when Metadata is received from connected device.
+ May be multiple meta attribute/element pairs.
+
+ PlaybackChanged(string status, uint32 elapsed)
+
+ SettingChanged(string setting, variant value)
+
+Properties uint8 SubUnitID [readonly]
+
+ The three-bit Subunit ID from the connected device.
+
+ uint8 SubUnitType [readonly]
+
+ The five-bit Subunit Type from the connected device.
+
+ boolean Connected [readonly]
+
+ array{uint32} CompanyIDs [readonly]
+
+ List of three-byte Company IDs (OUI) supported by the
+ connected device. Note that Bluetooth SIG Company
+ ID (0x001958) is always included.
+
+ array{string} Capabilities [readonly]
+
+ List of Capabilities provided by the connected device.