The UWB radio manager coordinates the use of the radio between the
PALs that may be using it. PALs request use of the radio with
uwb_radio_start() and the radio manager will start beaconing if its
not already doing so. When the last PAL has called uwb_radio_stop()
beaconing will be stopped.
In the future, the radio manager will have a more sophisticated channel
selection algorithm, probably following the Channel Selection Policy
from the WiMedia Alliance when it is finalized. For now, channel 9
(BG1, TFC1) is selected.
The user may override the channel selected by the radio manager and may
force the radio to stop beaconing.
The WUSB Host Controller PAL makes use of this and there are two new
debug PAL commands that can be used for testing.
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Use an event thread per-radio controller so processing events from one
radio controller doesn't delay another.
A radio controller shouldn't have information on devices seen by a
different radio controller (they may be on different channels) so make the
beacon cache per-radio controller.
Signed-off-by: Stefano Panella <stefano.panella@csr.com>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
ECMA-368 requires that IEs in a beacon must be sorted by element ID. Most
hardware uses the ordering in the Set IE URC command so get the ordering
right on the host.
Also refactor the IE management code:
- use uwb_ie_next() instead of uwb_ie_for_each().
- remove unnecessary functions.
- API is now only uwb_rc_ie_add() and uwb_rc_ie_rm().
Signed-off-by: David Vrabel <david.vrabel@csr.com>
In the __uwb_beca_find_bymac function the sizeof returns
the length of a pointer and not the data it is referring
to. Hence only the first 4 bytes were compared, not the
entire 6 bytes MAC address. Now the sizeof takes struct
uwb_mac_addr as argument.
Signed-off-by: Frank Leipold <frank.leipold@eads.net>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Avoid using printk_ratelimit() in many places because:
- many were error messages reporting broken hardware (it's useful to
get all of these).
- the message itself wasn't useful so the message has been removed.
Signed-off-by: David Vrabel <david.vrabel@csr.com>
David Vrabel