After https://github.com/zephyrproject-rtos/zephyr/pull/72090,
`conn_tx_alloc` no longer blocks, and each buffer always has a
corresponding `bt_conn_tx` object. This eliminates the need to configure
the number of `bt_conn_tx` objects via `CONFIG_BT_CONN_TX_MAX`, since
every buffer now carries its own context even when no callback is used.
This commit deprecates `CONFIG_BT_CONN_TX_MAX` as it is no longer
necessary. Instead, `CONFIG_BT_BUF_ACL_TX_COUNT` is used to allocate
`bt_conn_tx` objects for outgoing ACL data. ZLL already uses
`CONFIG_BT_BUF_ACL_TX_COUNT` to configure the number of outgoing ACL
packets. With this change, modifying the packet count will automatically
adjust the number of corresponding contexts, preventing both context
starvatoin and underutilization.
This approach also aligns with ISO, where the number of `bt_conn_tx`
objects for outgoing ISOdata matches `CONFIG_BT_ISO_TX_BUF_COUNT`.
Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>
Added a new function, bt_conn_is_type, that returns whether
the provided conn object is of the provided type.
This check is then used to ensure that the conn objects
supplied to other bt_conn function are of the right type.
The right type has also been documented for these functions.
This is an initial commit for a larger change in the BT Host,
as similar checks should be added to the L2CAP, GATT, ISO,
Audio and possibly Mesh APIs.
The type check could have been implemented by using the
bt_conn_get_info function, but that requires additional
function calls as well as memory allocation and copy.
Since bt_conn_is_type is designed to be widely used, it
was suited for its own function.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
Fix various unit test build warnings, unused variables, set but unused
variables, wrong types etc...
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
Add a test that checks behavior of
CONFIG_BT_CONN_CHECK_NULL_BEFORE_CREATE Kconfig option.
Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>
