Bluetooth: Add basic HCI command processing
This patch adds basic HCI command processing into the HCI core. The
commands are passed to the registered HCI driver with the help of a
FIFO and an associated fiber which wakes up whenever there's data in
the FIFO and the controller is ready to accept new commands.
The controller readiness (i.e. the num_cmds value returned in
cmd_status & cmd_complete events) is tracked with the help of a
semaphore. We only track whether the value is > 0 or not and never
send more than one command at a time. The reason for this is to keep
the tracking of pending command parameters simple in the form of a
single variable (dev.sent_cmd) rather than a list of pending buffers.
This patch also adds a very basic HCI initialization routine which
right now only consists of a single HCI_Reset command.
Change-Id: Ic68b298e4ea41334e49c3fe6bd4012a069ef6fdc
Co-authored-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
1 file changed
