Commit graph

10 commits

Author SHA1 Message Date
David Vrabel
e43ace8912 uwb: use print_hex_dump()
Use print_hex_dump() instead of the home-grown dump_bytes().

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-12-22 18:27:17 +00:00
Stefano Panella
5b37717a23 uwb: improved MAS allocator and reservation conflict handling
Greatly enhance the MAS allocator:
  - Handle row and column reservations.
  - Permit all the available MAS to be allocated.
  - Follows the WiMedia rules on MAS selection.

Take appropriate action when reservation conflicts are detected.
  - Correctly identify which reservation wins the conflict.
  - Protect alien BP reservations.
  - If an owned reservation loses, resize/move it.
  - Follow the backoff procedure before requesting additional MAS.

When reservations are terminated, move the remaining reservations (if
necessary) so they keep following the MAS allocation rules.

Signed-off-by: Stefano Panella <stefano.panella@csr.com>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-12-12 13:00:06 +00:00
David Vrabel
dcc7461eef wusb: add debug files for ASL, PZL and DI to the whci-hcd driver
Add asl, pzl and di debugfs files to uwb/uwbN/wusbhc for WHCI host
controller.  These dump the current ASL, PZL and DI buffer.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-11-26 13:36:59 +00:00
David Vrabel
e4b49580f7 uwb: fix oops in debug PAL's reservation callback
Initialize pal_priv for reservations created by the debug PAL.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-11-26 12:47:05 +00:00
David Vrabel
e8e1594c81 wlp: start/stop radio on network interface up/down
Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-11-19 14:47:04 +00:00
David Vrabel
6fae35f9ce uwb: add basic radio manager
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>
2008-11-19 14:46:33 +00:00
David Vrabel
e17be2b2a9 uwb: add pal parameter to new reservation callback
The pal parameter allows PALs to retrieve their PAL-specific data
structure.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-11-17 15:24:14 +00:00
Stefano Panella
6d5a681dfb uwb: add commands to add/remove IEs to the debug interface
Add the commands UWB_DBG_CMD_IE_ADD and UWB_DBG_CMD_IE_RM to the debug
interface and make them call uwb_rc_ie_add() and uwb_rc_ie_rm().

Signed-off-by: Stefano Panella <stefano.panella@csr.com>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-11-04 15:54:30 +00:00
David Vrabel
cae1c11414 uwb: reference count reservations
Reference counting the struct uwb_rsv's is safer and easier to get right than
the transferring ownership of the structures from the PAL to reservation
manager.

This fixes an oops in the debug PAL after a reservation timed out.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-28 12:07:23 +00:00
David Vrabel
599e8d80a2 uwb: add the UWB stack (debug support)
Add various debugfs files, principaly for the reservation manager.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:25 +01:00