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| author | David Vrabel <david.vrabel@csr.com> | 2008-11-17 15:53:42 +0000 |
|---|---|---|
| committer | David Vrabel <david.vrabel@csr.com> | 2008-11-19 14:46:33 +0000 |
| commit | 6fae35f9cea92793a98b2d9ab21235e5ae035581 (patch) | |
| tree | 82142169ff2ccada8c6c98beb6da59cafe8d913d /Documentation | |
| parent | e17be2b2a95b43fe0d5878adf330701bb7a77115 (diff) | |
| download | kernel_samsung_smdk4412-6fae35f9cea92793a98b2d9ab21235e5ae035581.tar.gz kernel_samsung_smdk4412-6fae35f9cea92793a98b2d9ab21235e5ae035581.tar.bz2 kernel_samsung_smdk4412-6fae35f9cea92793a98b2d9ab21235e5ae035581.zip | |
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>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-uwb_rc | 14 | ||||
| -rw-r--r-- | Documentation/usb/wusb-cbaf | 9 |
2 files changed, 8 insertions, 15 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-uwb_rc b/Documentation/ABI/testing/sysfs-class-uwb_rc index a0d18dbeb7a..6a5fd072849 100644 --- a/Documentation/ABI/testing/sysfs-class-uwb_rc +++ b/Documentation/ABI/testing/sysfs-class-uwb_rc @@ -32,14 +32,16 @@ Contact: linux-usb@vger.kernel.org Description: Write: - <channel> [<bpst offset>] + <channel> - to start beaconing on a specific channel, or stop - beaconing if <channel> is -1. Valid channels depends - on the radio controller's supported band groups. + to force a specific channel to be used when beaconing, + or, if <channel> is -1, to prohibit beaconing. If + <channel> is 0, then the default channel selection + algorithm will be used. Valid channels depends on the + radio controller's supported band groups. - <bpst offset> may be used to try and join a specific - beacon group if more than one was found during a scan. + Reading returns the currently active channel, or -1 if + the radio controller is not beaconing. What: /sys/class/uwb_rc/uwbN/scan Date: July 2008 diff --git a/Documentation/usb/wusb-cbaf b/Documentation/usb/wusb-cbaf index 2e78b70f3ad..426ddaaef96 100644 --- a/Documentation/usb/wusb-cbaf +++ b/Documentation/usb/wusb-cbaf @@ -80,12 +80,6 @@ case $1 in start) for dev in ${2:-$hdevs} do - uwb_rc=$(readlink -f $dev/uwb_rc) - if cat $uwb_rc/beacon | grep -q -- "-1" - then - echo 13 0 > $uwb_rc/beacon - echo I: started beaconing on ch 13 on $(basename $uwb_rc) >&2 - fi echo $host_CHID > $dev/wusb_chid echo I: started host $(basename $dev) >&2 done @@ -95,9 +89,6 @@ case $1 in do echo 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > $dev/wusb_chid echo I: stopped host $(basename $dev) >&2 - uwb_rc=$(readlink -f $dev/uwb_rc) - echo -1 | cat > $uwb_rc/beacon - echo I: stopped beaconing on $(basename $uwb_rc) >&2 done ;; set-chid) |