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wusb: wusb-cbaf (CBA driver) sysfs ABI simplification

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Simplify the sysfs ABI of the wusb-cbaf (Cable Based Association)
driver: use one value per file and cause the write of the CHID to
fetch the CDID (instead of requiring a separate read).

Update the example wusb-cbaf script to work with this revised ABI.

Signed-off-by: Felipe Zimmerle <felipe.zimmerle@indt.org.br>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
This commit is contained in:
Felipe Zimmerle
2008-09-17 16:34:42 +01:00
committed by David Vrabel
parent c8cf2465fc
commit f1fa035f2b
4 changed files with 361 additions and 273 deletions
Download Patch File Download Diff File Expand all files Collapse all files

60
Documentation/usb/wusb-cbaf
View File

@@ -70,32 +70,42 @@ EOF
# FIXME: CHID should come from a database :), band group from the host
host_CHID="00 11 22 33 44 55 66 77 88 99 aa bb cc dd ee ff"
host_band_group="0001"
host_name="Linux-WUSB"
host_name=$(hostname)
devs="$(echo /sys/bus/usb/drivers/wusb-cbaf/[0-9]*)"
hdevs="$(find /sys -name wusb_chid -printf "%h\n")"
hdevs="$(for h in /sys/class/uwb_rc/*/wusbhc; do readlink -f $h; done)"
result=0
case $1 in
start)
for dev in ${2:-$hdevs}
do
uwb_rc=$(find $(dirname $(dirname $dev)) -iname uwb_rc:uwb*)
if cat $uwb_rc/uwb_rc/beacon | grep -q "channel: -1"
uwb_rc=$(readlink -f $dev/uwb_rc)
if cat $uwb_rc/beacon | grep -q -- "-1"
then
echo 13 0 | cat > $uwb_rc/uwb_rc/beacon
echo I: started beaconing on ch 13 in host $(basename $uwb_rc)
echo 13 0 > $uwb_rc/beacon
echo I: started beaconing on ch 13 on $(basename $uwb_rc) >&2
fi
echo $host_CHID | cat > $dev/wusb_chid
echo I: started host $(basename $dev)
echo $host_CHID > $dev/wusb_chid
echo I: started host $(basename $dev) >&2
done
;;
stop)
for dev in ${2:-$hdevs}
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)
shift
for dev in ${2:-$devs}
do
echo "${2:-$host_CHID}" "${3:-$host_band_group}" "${4:-$host_name}" \
| cat > $dev/wusb_host_info
for dev in ${2:-$devs}; do
echo "${4:-$host_name}" > $dev/wusb_host_name
echo "${3:-$host_band_group}" > $dev/wusb_host_band_groups
echo ${2:-$host_CHID} > $dev/wusb_chid
done
;;
get-cdid)
@@ -105,21 +115,17 @@ case $1 in
done
;;
set-cc)
for dev in ${2:-$devs}
do
shift
CDID="$(head --bytes=16 /dev/urandom | od -tx1 -An)"
CK="$(head --bytes=16 /dev/urandom | od -tx1 -An)"
cat > $dev/wusb_cc <<EOF
CDID:$CDID
CK:$CK
EOF
cat <<EOF
I: CC set
CHID: $host_CHID
CDID:$CDID
CK: $CK
EOF
for dev in ${2:-$devs}; do
shift
CDID="$(head --bytes=16 /dev/urandom | od -tx1 -An)"
CK="$(head --bytes=16 /dev/urandom | od -tx1 -An)"
echo "$CDID" > $dev/wusb_cdid
echo "$CK" > $dev/wusb_ck
echo I: CC set >&2
echo "CHID: $(cat $dev/wusb_chid)"
echo "CDID:$CDID"
echo "CK: $CK"
done
;;
help|h|--help|-h)