Commit graph

84 commits

Author SHA1 Message Date
Mariusz Skamra
5fc2079963 Bluetooth: audio: ascs: Handle CIS failed to be established error
In case CIS failed to be established, leave the ASE in enabling state
waiting for peer to retry.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-12-15 14:31:11 +00:00
Hang Fan
ebcfa196fc Bluetooth: audio: fix invalid ase state transition
When Receiver Stop Ready operation has completed, the Unicast Server
may request to terminate a CIS and set source ASE state to Qos
configured state immediately. But after CIS disconnected completed,
it will transition source ASE state from Qos Configured to Disabling
state. It's invalid and will cause assert.

we should add Streaming and Enabling state check when CIS disconnected.

Signed-off-by: Hang Fan <fanhang@xiaomi.com>
2022-12-12 14:55:32 +01:00
Théo Battrel
e458f5aae6 Bluetooth: Use Zephyr standard log system instead of bluetooth/common/log
The `bluetooth/common/log.h` and `bluetooth/common/log.c` files have been
removed. Files that were using them have been updated to use
`zephyr/logging/log.h` instead.

Those replacement have been done consequently:
- `/BT_DBG/LOG_DBG/`
- `/BT_ERR/LOG_ERR/`
- `/BT_WARN/LOG_WRN/`
- `/BT_INFO/LOG_INF/`
- `/BT_HEXDUMP_DBG/LOG_HEXDUMP_DBG/`
- `/BT_DBG_OBJ_ID/LOG_DBG_OBJ_ID/`

Also, some files were relying on the `common/log.h` include to include
`zephyr/bluetooth/hci.h`, in those cases the include of `hci.h` has
been added.

For files that were including `common/log.h` but not using any logs,
the include has been removed and not replaced.

Signed-off-by: Théo Battrel <theo.battrel@nordicsemi.no>
2022-11-25 17:08:36 +01:00
Emil Gydesen
0b4d33bcbb Bluetooth: Audio: Fix missing path_id for broadcast_sink
Adds support for using the path_id set by the capabilities
for the broadcast sink role.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
2022-11-15 12:14:14 +00:00
Emil Gydesen
a34c2cd90a Bluetooth: Audio: Fix ASE_{SNK,SRC}_COUNT=0 issues
Due to the LISTIFY macro for the counts, the value
cannot be 0.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
2022-11-08 10:48:54 +01:00
Mariusz Skamra
529b4b2b1d Bluetooth: audio: ascs: Fix invalid error code returned
This fixes invalid error code that was returned in case remote requested
Disable operation with invalid ASE ID.

Fixes: BAP/USR/SPE/BI-01-C
Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-11-08 10:48:47 +01:00
Mariusz Skamra
e4f0bcdd56 Bluetooth: audio: ascs: Fix audio ISO allocation in QoS->QoS transition
ASE in QoS state already have audio ISO object.
This will just skip the audio ISO allocation and binding in such case
if CIG and CIS parameters did not change.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-11-08 10:46:07 +01:00
Mariusz Skamra
9054435a4a Bluetooth: ascs: Handle CIS disconnection in non-releasing state
Unbind ISO when goint to idle state if there's still reference kept.
It may happen that we get CIS disconnection being in non-releasing
state, so we have to handle that case. This fixes regression that was
introduced in 3fa456905d.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-11-07 09:50:18 +01:00
Mariusz Skamra
3fa456905d Bluetooth: audio: Factor out bt_audio_iso pool
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>
2022-11-04 08:55:12 +00:00
Mariusz Skamra
6fde7ae96d Bluetooth: audio: ascs: Move control point work to EP
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>
2022-11-04 08:55:12 +00:00
Théo Battrel
c9d68a5a4f Bluetooth: Move out string related function of common/log.h
Functions related to string manipulation that were defined in
`common/log.h` has been moved to the `common/bt_str.h` file and their
implementation in `common/bt_str.c`.

Files that were using those functions has been updated consequently.

Signed-off-by: Théo Battrel <theo.battrel@nordicsemi.no>
2022-11-02 13:28:57 +01:00
Emil Gydesen
326b2fdf15 Bluetooth: Audio: Fix issue with supporting bidir CIS in ASCS
If 2 ASEs shared the same CIS and the first ASE had the CIS
connected before the second ASE was QoS configured, then
the CIS was missing either the TX or RX pointer, causing
it to be considered unidirectional by the ISO layer.

This commit fixes this issue by configuring the (static)
pointers at an earlier time, so that the RX and TX QoS
pointers are always valid.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
2022-10-26 12:01:52 +02:00
Mariusz Skamra
2627063ab2 Bluetooth: audio: pacs: Replace capabilities API with pacs
This changes the API to use proper naming convention, as the code has
been moved out of capabilities.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-10-26 08:49:00 +02:00
Théo Battrel
2d1d309936 Bluetooth: Move out BT_ASSERT of common/log.h
Macro that was defined in the `common/log.h` has been moved to the newly
created `common/assert.h` file.

Files that were using those macro has been updated consequently. Also, the
include of `common/log.h` has been removed of files that were actually not
using any logging methods.

Some `#include "common/log.h"` have been removed. Those were required
before when including `hal/debug.h`. With this change, `hal/debug.h` no
longer has this requirement, because the replacement, `common/assert.h`
includes what it uses.

Signed-off-by: Théo Battrel <theo.battrel@nordicsemi.no>
2022-10-25 10:48:17 +02:00
Théo Battrel
fdd0a26348 Bluetooth: Remove BT_HEXDUMP_DBG
Replace unnecessary `BT_HEXDUMP_DBG` with `LOG_HEXDUMP_DBG`.

`BT_HEXDUMP_DBG` did an extra cast to `const uint8_t *` on its first
argument. This was probably the reason it was introduced. But the
current definition of `LOG_HEXDUMP_DBG` does this cast for us.

Signed-off-by: Théo Battrel <theo.battrel@nordicsemi.no>
2022-10-25 10:48:17 +02:00
Mariusz Skamra
39dcde2b7e Bluetooth: audio: ascs: Do not store Bluetooth address
The struct bt_ascs holds the conn reference already,
thus it's not needed to store the device address.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-10-20 15:41:47 +02:00
Mariusz Skamra
54d1e15b71 Bluetooth: audio: ascs: Make ascs_ep_set_metadata static
This changes ascs_ep_set_metadata to be static as it's not used outside
of ascs.c.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-10-19 16:00:33 +02:00
Aleksander Wasaznik
9db3fa82d1 Bluetooth: Replace all '!bt_addr_le_cmp' with 'bt_addr_le_eq'
There should be functional equivalence between these two forms. And the
'_eq'-form is more readable.

Signed-off-by: Aleksander Wasaznik <aleksander.wasaznik@nordicsemi.no>
2022-10-19 15:40:18 +03:00
Emil Gydesen
4321fef3b7 Bluetooth: Audio: Ensure that stream is in streaming state for ISO recv
Adds check to verify that the audio stream is actually
in the streaming state before handling the
audio data. As per the BAP spec, a stream that
is not in the streaming state shall not send
any data, and this check is to handle any
remote devices that are not working correctly.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
2022-10-18 14:13:51 +02:00
Emil Gydesen
65f130b73e Bluetooth: Audio: add missing CONFIG_BT_AUDIO_DEBUG_STREAM_DATA guards
Some places did not properly guard debug messages for sending
ISO data.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
2022-10-14 09:53:11 +02:00
Emil Gydesen
cb4541ae51 Bluetooth: Audio: Fix missing metadata_updated calls
The metadataa_updated callback has existed for a long
time, but was never actually used. The metadata is set
or updated in the enabling and streaming state.

Added checks to see if the state actually changes when going
into these states, and if not, then it means that the
metadata was updated.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
2022-10-14 09:51:23 +02:00
Mariusz Skamra
d44e112045 Bluetooth: audio: ascs: Remove unused bt_ascs member
Remove unused struct member.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-10-13 16:03:34 +02:00
Mariusz Skamra
9c3f190721 Bluetooth: audio: capabilities: Hide bt_audio_capability_get function
This function exposes list pointer, so that it allows the user to modify
the internal list. This adds bt_audio_foreach_capability iterator finction
that can be used instead.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-10-12 18:41:22 +02:00
Emil Gydesen
fa13e02320 Bluetooth: Audio: Use stream->conn instead of iso->acl for ISO disconnect
Use the stream->conn instead of the iso->acl, as the iso->acl
may already have been free'd by the ISO layer when the
disconnected callback is called.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
2022-10-07 13:22:23 +02:00
Szymon Czapracki
ab45e31c7e Bluetooth: Audio: Fix ASE race condition
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>
2022-10-07 10:10:32 +00:00
Emil Gydesen
384f3461ad Bluetooth: Audio: Fix bug where sink ep did not go to streaming state
If the CIS was connected before the sink endpoint was
in the enabling state, it never autonousmly went into
the streaming state.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
2022-10-07 10:09:58 +00:00
Mariusz Skamra
4eb7077978 Bluetooth: audio: ascs: Move control point pointer out of bt_ascs
bt_ascs is per connection, so the control point attribute pointer
should not be part of this structure.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-10-06 22:42:24 +00:00
Emil Gydesen
7b0ba0f517 Bluetooth: Audio: Fix missing path_id for unicast server
The codec->path_id supplied to the capabilities
were not being used for the endpoint codec.

Important note: This only works if there is a single
capability per codec ID per direction. This limitation
is also an existing limitation in the current
implementation of capabilities.c.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
2022-10-05 12:45:14 +02:00
Emil Gydesen
15ed8569ed Bluetooth: Audio: Update ASE EP state checks
Update the existing ASE EP state checks to be more correct
and aligned with the ASCS specification.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
2022-10-04 10:33:13 +02:00
Mariusz Skamra
9dae352007 Bluetooth: audio: ascs: Increase the number of supported ASEs
This increases the number of supported audio stream endpoints.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-10-03 10:19:39 +02:00
Emil Gydesen
a59bc35235 Bluetooth: Audio: Ensure that ASEs don't get idled when CIS is connected
Ensure that the CIS for an ASE, if any, is disconnected before we
go into the idle state.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
2022-09-27 09:16:21 +00:00
Emil Gydesen
874c45241e Bluetooth: Audio: Remove caching ASE on release
Remove the support for caching ASEs on release.

This is mainly due to the 2-stage design in Zephyr: We
have the bt_audio_stream and the bt_audio_ep, where the
the latter represents an ASE in most cases.

However, once the endpoint goes into the codec configured
state, then a stream must be bound to it. This would be fine
(although a stream is technically not established at this point),
except that a stream is also, for unicast, specified for a
specific ACL. Once the ACL disconnects, the stream technically
becomes invalid, and if the stream is invalid, so is the endpoint.

Based on that, there's no reason (or even option) to keep the
endpoint in a codec configured state, as it would not
have a valid stream associated with it.

If we want to support an ASE going into the codec
configured state on ASE release (or ACL disconnect),
the relationsship between ASEs and streams needs to
be redefined.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
2022-09-27 09:16:21 +00:00
Mariusz Skamra
bc2414e094 Bluetooth: audio: ascs: Fix crash on source QoS config
This fixes crash that happened during source ASE QoS by setting
the tx path that was left uninitialized.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-09-20 09:40:17 +02:00
Gerard Marull-Paretas
79e6b0e0f6 includes: prefer <zephyr/kernel.h> over <zephyr/zephyr.h>
As of today <zephyr/zephyr.h> is 100% equivalent to <zephyr/kernel.h>.
This patch proposes to then include <zephyr/kernel.h> instead of
<zephyr/zephyr.h> since it is more clear that you are including the
Kernel APIs and (probably) nothing else. <zephyr/zephyr.h> sounds like a
catch-all header that may be confusing. Most applications need to
include a bunch of other things to compile, e.g. driver headers or
subsystem headers like BT, logging, etc.

The idea of a catch-all header in Zephyr is probably not feasible
anyway. Reason is that Zephyr is not a library, like it could be for
example `libpython`. Zephyr provides many utilities nowadays: a kernel,
drivers, subsystems, etc and things will likely grow. A catch-all header
would be massive, difficult to keep up-to-date. It is also likely that
an application will only build a small subset. Note that subsystem-level
headers may use a catch-all approach to make things easier, though.

NOTE: This patch is **NOT** removing the header, just removing its usage
in-tree. I'd advocate for its deprecation (add a #warning on it), but I
understand many people will have concerns.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-09-05 16:31:47 +02:00
Emil Gydesen
68e17426ac Bluetooth: Audio: Support setting non-HCI data path for audio streams
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>
2022-09-02 14:16:49 +02:00
Emil Gydesen
70dfbb6747 Bluetooth: Audio: Add missing NULL checks when looking up audio_iso streams
Multiple places we assumed that we could simply just do
sink_stream->iso == chan without checking if sink_stream
was NULL.

This commit fixes that by adding proper NULL checks for that,
as well as additional checks before defaulting to the
source_stream.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
2022-08-26 11:56:15 +02:00
Mariusz Skamra
a120af8f33 Bluetooth: audio: ascs: Fix missing metadata reset before update
The old metadata shall be reset (simply set the couynt to zero) before
reuse or update.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-08-23 16:22:11 +02:00
Mariusz Skamra
c57ba529dc Bluetooth: audio: ascs: Remove invalid check
This fixes invalid check, which is redundant in fact as the length
is already checked in ascs_parse_metadata function.
The check be test 'greater than' only, as 'equal' condition is valid.
Moreover this fixes return value from ascs_verify_metadata function.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-08-23 16:22:11 +02:00
Mariusz Skamra
bacc4953e9 Bluetooth: audio: Reject QoS if CIS is already is use in this direction
As per ASCS_v1.0
If a client requests a Config QoS operation for an ASE that would
result in more than one (Sink/Source) ASE having identical CIG_ID
and CIS_ID parameter values for that client, the server shall not
accept the Config QoS operation for that ASE.
The server shall send a notification of the ASE Control Point
characteristic to the client, the server shall set the Response_Code
value for that ASE to 0x09 (Invalid Parameter Value), and the server
shall set the Reason value for that ASE to 0x0A
(Invalid_ASE_CIS_Mapping).

Fixes: ASCS/SR/SPE/BI-{15,16}-C
Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-08-17 12:10:51 +02:00
Mariusz Skamra
e0d36beb72 Bluetooth: audio: Add security requirements check
The LE Audio related profiles define specific security requirements that
client have to met to gain access to related characteristics. This
introduces internal wrapper API for GATT characteristics and CCC
descriptors to ensure the security.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-08-16 12:19:43 +02:00
Mariusz Skamra
2241efedfb Bluetooth: audio: Keep ASE pointer in bt_audio_ep
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>
2022-08-16 12:19:43 +02:00
Mariusz Skamra
ffea5b6b54 Bluetooth: audio: ascs: Fix missing negative sign parameter
This fixes missing negative sign passed to ascs_cp_rsp_add_errno
that takes negative error argument.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-08-16 10:07:54 +00:00
Mariusz Skamra
778ed28ee2 Bluetooth: audio: ascs: Reject peer Release operation in Idle state
This fixes crash that happened when client initiated Release operation
on ASE in Idle state. In such case the operation shall be rejected with
Invalid ASE State Machine Response_Code.

Fixes: ASCS/SR/SPE/BI-10-C
Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-08-16 10:07:54 +00:00
Mariusz Skamra
f836dabb46 Bluetooth: audio: Handle Receiver Stop Ready on non-connected stream
This fixes state transition to QoS Configured state triggered by
client-initiated Receiver Stop Ready operation on ASE that has no ISO
attached.

Fixes: ASCS/SR/ACP/BV-12-C
Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-08-09 12:30:10 +02:00
Mariusz Skamra
a618143b46 Bluetooth: audio: Add unavailable audio context warning
This logs warning if the stream is rejected due to unavailable
audio context.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-08-08 15:03:55 +02:00
Mariusz Skamra
42e372fc3e Bluetooth: audio: ascs: Fix sending invalid ATT_ERROR_RSP error code
This fixes sending invalid ATT Request Not Supported error code as a
response to Control Point write request.
ATT Request Not Supported error code is used to inform that
"ATT Server does not support the request received from the client",
so it should not be sent in this case.
If the requested opcode is unsupported, ASCS mandates to send ATT
Notification from Control Point with Unsupported opcode Response_Code
only. If the request received from the client is properly formatted,
ATT Write Response can be sent to complete the ATT transaction.

Fixes: ASCS/SR/SPE/BI-01-C
Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-08-05 15:05:17 +02:00
Mariusz Skamra
a0ea971e9f Bluetooth: audio: ascs: Use BT_WARN to log peer invalid behavior
BT_ERR() should really be reserved for local errors only,
thus BT_WARN() is the right choice whenever a remote peer
sends something invalid that we cleanly handle.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-08-05 15:05:07 +02:00
Mariusz Skamra
c88b5dab61 Bluetooth: audio: ascs: Fix handling zero Number_of_ASEs parameter
As per ASCS_v1.0
"A client-initiated ASE Control operation shall be defined as an
invalid length operation if the Number_of_ASEs parameter value is
less than 1".

Fixes: ASCS/SR/SPE/BI-{02,03,04,05,06}-C
Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-08-05 15:05:07 +02:00
Mariusz Skamra
a0007f775f Bluetooth: audio: Fix server ASE Release in Codec Configured state
This fixes issue where the ASE state stuck in Releasing state instead of
going to Idle/Codec Configured as test requires.
Looks like there was a race condition possible where the ASE
notification work was run before the stream was detached, so there was
no transition to idle state triggered.

Fixes: ASCS/SR/ACP/BV-24-C
Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-08-01 10:29:34 +02:00
Mariusz Skamra
55a70b97e6 Bluetooth: audio: Disallow Release operation on ASE in Releasing state
The server should not perform Release operation on ASE in Releasing
state. This fixes crash that might happen in ASCS when ACL gets
disconnected while ASE is in Releasing state so that server tries to
dereference NULL stream.

Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2022-08-01 10:29:29 +02:00