Return-Path: From: =?iso-8859-1?q?Jos=E9_Antonio_Santos_Cadenas?= To: linux-bluetooth@vger.kernel.org Subject: Re: Proposed API for HDP (v4) Date: Fri, 9 Jul 2010 20:39:33 +0200 References: <201007081912.31407.santoscadenas@gmail.com> In-Reply-To: <201007081912.31407.santoscadenas@gmail.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Message-Id: <201007092039.34032.santoscadenas@gmail.com> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: BlueZ D-Bus Health API description ********************************** Santiago Carot-Nemesio Jos? Antonio Santos-Cadenas Elvis Pf?tzenreuter Health Device Profile hierarchy =============================== Service org.bluez Interface org.bluez.HealthManager Object path [variable prefix]/ Methods: path RegisterApplication(object agent, dict config) Returns the path of the new registered application. The agent parameter is the path of the object with the callbacks to notify events (see org.bluez.HealthAgent at the end of this document) This petition starts an mcap instance on every adapter and also register a proper record in the SDP if is needed. Dict is defined as bellow: { "end_points" : [{ (optional) "role" : ("source" or "sink"), (mandatory) "specs" :[{ (mandatory) "data_type" : uint16, (mandatory) "description" : string, (optional) }] }] } Application will be closed by the call or implicitly when the programs leaves the bus. Possible errors: org.bluez.Error.InvalidArguments void UnregisterApplication(object application) Closes the HDP application identified by the object path. Also application will be closed if the process that started it leaves the bus. If there is a SDP record associated to this application it will also be removed. Possible errors: org.bluez.Error.InvalidArguments org.bluez.Error.NotFound void UpdateServices() This method searches for HDP applications on the all remote devices and notifies them to the appropriate agents. Signals: void ServiceDiscovered(object service) This signal is sent when a device containing an HDP application is paired or when the method Update of the HealthManager is called and new HealthServices are discovered. The object path is the HealthService path. The signal will be launched once for each HealthService. void ServiceRemoved(object service) This signal is sent if during an Update some HealthServices have disappeared. The signal is launched once for each removed HealthService. -------------------------------------------------------------------------------- Service org.bluez Interface org.bluez.HealthService Object path [variable prefix]/{hci0,hci1,...}/dev_XX_XX_XX_XX_XX_XX/hdp_YYYY Methods: array GetProperties() Returns all properties for the interface. See the properties section for available properties. boolean Echo(array{byte}) Sends an echo petition to the remote service. Returns True if response matches with the buffer sent. If some error is detected False value is returned and the associated MCL is closed. string OpenDataChannel(byte mdepid, string conf) Creates a new data channel with the indicated config to the remote MCAP Data End Point (MDEP). The configuration should indicate the channel quality of service using one of this values "Reliable", "Streaming", "Any". Returns an string that identifies the data channel. Possible errors: org.bluez.Error.InvalidArguments org.bluez.Error.HealthError void ReconnectDataChannel(string data_channel) Reconnects a previously created data channel. Possible errors: org.bluez.Error.InvalidArguments org.bluez.Error.HealthError org.bluez.Error.NotFound void DeleteDataChannel(string data_channel) Deletes a data channel so it will not be available. Possible errors: org.bluez.Error.InvalidArguments org.bluez.Error.NotFound org.bluez.Error.HealthError void DeleteAllDataChannels() Deletes all data channels so they will not be available for future use. Possible errors: org.bluez.Error.HealthError Properties: array EndPoints An array with all the end points in this Service. Each one of then has this format. { "mdepid": uint8, "role" : "source" or "sink" , "specs" : [{ "dtype" : uint16, "description" : string, (optional) }] } HealthAgent hierarchy ===================== (this object is implemented by the HDP user in order to receive notifications) Service unique name Interface org.bluez.HealthAgent Object path freely definable Methods: void Release() This method gets called when the service daemon unregisters the agent. An agent can use it to do cleanup tasks. There is no need to unregister the agent, because when this method gets called it has already been unregistered. void DataChannelCreated(object service, string data_channel, string conf, fd file_descriptor, boolean reconnection) This method is called when a new data channel is created. The service parameter contains the object path of the HealthService that created the connection, data_channel is the string that identifies the data channel, conf is the quality of service of the data channel ("reliable" or "streaming"), file_descriptor the file descriptor for reading and writing data and reconnection indicates if it is a reconnection or a data channel creation. void DataChannelRemoved(object service, string data_channel) This method is called when a data channel is deleted. After this call the data channel path will not be valid and can be reused for future creation of data channels.