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    Bluetooth: Clean up HCI state when doing power off · 8b064a3a
    Johan Hedberg 提交于
    To be friendly to user space and to behave well with controllers that
    lack a proper internal power off procedure we should try to clean up as
    much state as possible before requesting the HCI driver to power off.
    
    This patch updates the power off procedure that's triggered by
    mgmt_set_powered to clean any scan modes, stop LE scanning and
    advertising and to disconnect any open connections.
    
    The asynchronous cleanup procedure uses the HCI request framework,
    however since HCI_Disconnect is only covered until its Command Status
    event we need some extra tracking/waiting of disconnections. This is
    done by monitoring when hci_conn_count() indicates that there are no
    more connections.
    Signed-off-by: NJohan Hedberg <johan.hedberg@intel.com>
    Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
    8b064a3a
mgmt.c 133.9 KB