Refactored out the client and server members of the endpoint struct
and placed the relevant members in wrappers in ascs and
unicast_client.
Signed-off-by: Fredrik Danebjer <fredrik@danebjer.com>
Updates the broadcast source API to create subgroups and
to set BIS specific codec configuration
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
This adds common bt_audio_iso pool that will be used across all the
roles/profiles. The pool range is dependent on the CONFIG_BT_ISO_MAX_CHAN
which is the maximum number of ISO connections the host can maintain.
Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
Move the control point work to the EP. The aim is to cleanup the code so
that it there's no EP for ASE that means ASE is in idle state.
Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
This refactors how the BAP broadcast source handles the
extended and periodic advertising.
First it removes the start and stop of the extended
advertising, and instead expects the application
(or upper layers) to do this.
Second it exposes API functions to get the
necessary advertising data from BAP (service data and
the BASE), which the upper layers will then also
be responsible for setting and updating.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
This patch fixes invalid ASE state transition,
ASE now waits for Receiver Start Ready before
going into Streaming state.
Signed-off-by: Szymon Czapracki <szymon.czapracki@codecoup.pl>
Add support for setting a vendor specific data path using
the BAP API, instead of only support the HCI data path.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
This makes the server endpoint to store the ASE pointer instead of
handle. This way, there will be no need to "mock" attribute when
notification is sent.
Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
Modify the broadcast sink to use a list of streams instead
of an array. This removes the requirement that the array
of stream pointers shall be static, and makes the
broadcast sink API and implementation more similar
to the unicast group and broadcast source.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
Modify from array to list. The list approach is easily
implemented as it is used for the unicast groups, and
using the list approach instead of an array does not
require the array to be static.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
Modify how the ISO channels are allocated for the audio streams,
as well as how the CIG is allocated for the unicast group.
This fixes an issue where the unicast group could not be
fully allocated before _after_ the bt_audio_streams had been
configured by bt_audio_stream_config, thus making it impossible
to create a unicast group before the connections have been established.
This leaves us with 3 basic data types:
1) Streams allocated by the application
2) Endpoints that represent ASEs
3) Audio_iso which is used to couple streams and ISO channels.
The Unicast Group for the unicast client will now have the same
lifetime as the ISO CIG for the central.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
Added sequence number and timestamp to the bt_audio_stream_send
function. This allows an application to better
control the audio transmission, as it can schedule
one or more audio streams to send a buffer in a specific
SDU interval (ensuring that e.g. left and right is sent in
the same SDU interval).
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
The codec (or rather codec configuration) is now taken from the
previously received BASE. This also means that the BASE (with
the codec configurations) is now also stored statically.
When the application attempts to synk to the broadcaster
the stack will lookup the codec configuration based on the
bis index, as a BASE may have multiple subgroups
with multiple codec configurations.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
Add two new parameters to bt_iso_chan_send:
sn: The packet sequence number which shall be incremeted
per SDU interval.
ts: An optional timestamp value used to synchronize SDUs.
The sequence number in the API uses a 32-bit value even though
the sequence number for the HCI command is 16-bit. This is to
properly handle wrapping of sequence numbers, which is much
easier to do with additional bits allocated.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
The unicast audio group can not have streams removed after the
CIG has been created as part of the QoS set procedure.
The bt_audio_unicast_group_remove_streams function may
leave the unicast group without streams, and thus the
check for "free" group was not correct, and has been replaced
with a simple boolean value.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
Add supporting for referercing either a sink endpoint,
a source endpoint or both in the bt_audio_iso struct.
This way a single bt_audio_iso can have references to up
to 2 endpoints.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
Moves the bt_iso_chan and bt_iso_chan_qos structs
out from the bt_audio_ep struct, and instead use a
reference.
This is due to the fact that an endpoint can ever
only be unidirectional, and a CIS can be bidrectional.
The support for using a single bididrectional CIS
for two audio streams/endpoints is not implemented
in this commit.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
The endpoint.type field was unused as it was
always LOCAL for the unicast server and always
REMOTE for the unicast client, and the few places
where we actually checked it, we already had a
check for acl->role which gave the same value.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
Change bt_audio_broadcast_sink_sync to use an array of pointers
to bt_audio_streams, instead of an array of streams. This makes
the API more flexible, as well consistent with the broadcast
source and unicast APIs.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
The bt_audio_broadcast_source_create function will now
take an array of stream pointers, instead of an array
of streams. This is to make the API more flexible as
well as more consistent with the unicast API.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
Audio streams as defined by the BAP spec does not
support bidirectional audio streams. This commit
updates the API and implementation to match that.
The use a bidirectional CIS with 2 audio stream will
be added in a future commit.
This removes the _IN_ and _OUT_ and _INOUT_ QOS
values, as well as the direction of the codec QOS
struct.
To keep direction for internal use, the direction
has been added to the endpoint struct.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
Add the BAP unicast client implementation. This role
can discover BAP unicast server services and initiate
BAP audio streams.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
Add the Basic Audio Profile (BAP) unicast server
functionality. This allows a device to act as the
unicast server role, which can accept unicast streams
initiated by a unicast client.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
