mirror of
https://github.com/joel16/android_kernel_sony_msm8994_rework.git
synced 2024-12-23 04:18:26 +00:00
6fae35f9ce
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>
131 lines
3.2 KiB
Bash
131 lines
3.2 KiB
Bash
#! /bin/bash
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#
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set -e
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progname=$(basename $0)
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function help
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{
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cat <<EOF
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Usage: $progname COMMAND DEVICEs [ARGS]
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Command for manipulating the pairing/authentication credentials of a
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Wireless USB device that supports wired-mode Cable-Based-Association.
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Works in conjunction with the wusb-cba.ko driver from http://linuxuwb.org.
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DEVICE
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sysfs path to the device to authenticate; for example, both this
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guys are the same:
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/sys/devices/pci0000:00/0000:00:1d.7/usb1/1-4/1-4.4/1-4.4:1.1
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/sys/bus/usb/drivers/wusb-cbaf/1-4.4:1.1
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COMMAND/ARGS are
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start
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Start a WUSB host controller (by setting up a CHID)
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set-chid DEVICE HOST-CHID HOST-BANDGROUP HOST-NAME
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Sets host information in the device; after this you can call the
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get-cdid to see how does this device report itself to us.
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get-cdid DEVICE
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Get the device ID associated to the HOST-CHDI we sent with
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'set-chid'. We might not know about it.
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set-cc DEVICE
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If we allow the device to connect, set a random new CDID and CK
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(connection key). Device saves them for the next time it wants to
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connect wireless. We save them for that next time also so we can
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authenticate the device (when we see the CDID he uses to id
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itself) and the CK to crypto talk to it.
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CHID is always 16 hex bytes in 'XX YY ZZ...' form
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BANDGROUP is almost always 0001
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Examples:
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You can default most arguments to '' to get a sane value:
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$ $progname set-chid '' '' '' "My host name"
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A full sequence:
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$ $progname set-chid '' '' '' "My host name"
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$ $progname get-cdid ''
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$ $progname set-cc ''
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EOF
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}
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# Defaults
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# FIXME: CHID should come from a database :), band group from the host
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host_CHID="00 11 22 33 44 55 66 77 88 99 aa bb cc dd ee ff"
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host_band_group="0001"
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host_name=$(hostname)
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devs="$(echo /sys/bus/usb/drivers/wusb-cbaf/[0-9]*)"
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hdevs="$(for h in /sys/class/uwb_rc/*/wusbhc; do readlink -f $h; done)"
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result=0
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case $1 in
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start)
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for dev in ${2:-$hdevs}
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do
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echo $host_CHID > $dev/wusb_chid
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echo I: started host $(basename $dev) >&2
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done
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;;
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stop)
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for dev in ${2:-$hdevs}
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do
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echo 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > $dev/wusb_chid
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echo I: stopped host $(basename $dev) >&2
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done
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;;
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set-chid)
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shift
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for dev in ${2:-$devs}; do
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echo "${4:-$host_name}" > $dev/wusb_host_name
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echo "${3:-$host_band_group}" > $dev/wusb_host_band_groups
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echo ${2:-$host_CHID} > $dev/wusb_chid
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done
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;;
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get-cdid)
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for dev in ${2:-$devs}
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do
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cat $dev/wusb_cdid
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done
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;;
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set-cc)
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for dev in ${2:-$devs}; do
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shift
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CDID="$(head --bytes=16 /dev/urandom | od -tx1 -An)"
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CK="$(head --bytes=16 /dev/urandom | od -tx1 -An)"
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echo "$CDID" > $dev/wusb_cdid
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echo "$CK" > $dev/wusb_ck
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echo I: CC set >&2
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echo "CHID: $(cat $dev/wusb_chid)"
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echo "CDID:$CDID"
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echo "CK: $CK"
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done
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;;
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help|h|--help|-h)
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help
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;;
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*)
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echo "E: Unknown usage" 1>&2
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help 1>&2
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result=1
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esac
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exit $result
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