I wrote a new API based on the changes suggested in this thread.
Regards.
Jose.
BlueZ D-Bus Health API description
**********************************
Santiago Carot-Nemesio <sancane@xxxxxxxxx>
José Antonio Santos-Cadenas <santoscadenas@xxxxxxxxx>
Elvis Pfützenreuter <epx@xxxxxxxxxxx>
Health Device Profile hierarchy
===============================
Service org.bluez
Interface org.bluez.HealthManager
Object path [variable prefix]/{hci0,hci1,...}
Methods:
path RegisterApplication(object path, dict config)
Returns the path of the new registered application. The path
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(path 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.
--------------------------------------------------------------------------------
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()
Gets the information of the remote application published on its
SDP record. The returned data format is as follows:
{
"end_points": [
"mdepid": uint8,
"role" : "source" or "sink" ,
"specs" : [{
"dtype" : uint16,
"description" : string, (optional)
}]
]
}
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.
path 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 the data channel path.
Possible errors: org.bluez.Error.InvalidArguments
org.bluez.Error.HealthError
void ReconnectDataChannel(path data_channel)
Reconnects a previously created data channel indicated by its
path.
Possible errors: org.bluez.Error.InvalidArguments
org.bluez.Error.HealthError
org.bluez.Error.NotFound
void DeleteDataChannel(path 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
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 ServiceDiscovered(object path)
This method is called 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 method will be
called for each HealthService.
(Not shure if this should be added)
void ServiceRemoved(object path)
This method is called if during an Update some HealthServices
have disappeared. The method is called once for each removed
HealthService.
void DataChannelCreated(object path, path data_channel, string conf,
fd file_descriptor)
This method is called when a new data channel is created.
The path contains the object path of the HealthService that
created the connection, the data_channel is the path that
identifies the data channel, conf is the quality of service of
the data channel ("reliable" or "streaming") and file_descriptor
the file descriptor for reading and writing data.
void DataChannelReconnected(object path, path data_channel, string conf,
fd file_descriptor))
This method is called when a closed data channel is reconnected
by the remote device.
The path contains the object path of the HealthService that
reconnected the channel. data_channel is the path that
identifies the data channel, conf is the quality of service of
the data channel ("reliable" or "streaming") and file_descriptor
is the file descriptor for reading and writing data.
void DataChannelRemoved(object path, path 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. The path is the
path of the HealthService that removes the data channel.
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