Because the number of ACL RX buffers must be at least the number of
maximum connections plus one, increasing `CONFIG_BT_MAX_CONN` could
inadvertently lead to a build failure if the number of ACL RX buffers is
not also increased. This dependency may not be obvious to users.
To address this issue, this commit deprecates the
`CONFIG_BT_BUF_RX_COUNT` Kconfig symbol and computes the value in
`buf.h` using the new `BT_BUF_RX_COUNT` define. Note that the default
value and the minimum range value have been changed to 0 to "disable"
the option.
Additionally, to allow users to increase the number of ACL RX buffers,
this commit introduces the new `CONFIG_BT_BUF_RX_COUNT_EXTRA` Kconfig
symbol. The value of this symbol will be added to the computed value of
`BT_BUF_RX_COUNT`.
The configurations of tests and samples have been updated to reflect
these changes.
Signed-off-by: Théo Battrel <theo.battrel@nordicsemi.no>
This sample is an alternative implementation of hci_uart. The new sample
differs from the existing sample in that it uses the async UART API
instead of the interrupt driven API.
Included in this commit is a new test for HCI UART flow control. It's
enabled for hci_uart_async. The test can excercise also the existing
hci_uart sample (with some minimal changes to allow compiling in the
mock controller and test suite). The existing hci_uart sample currently
fails the flow control test.
Signed-off-by: Aleksander Wasaznik <aleksander.wasaznik@nordicsemi.no>
