check-jtag.sh

#!/bin/bash
set -e

base=$(dirname $0)

LSUSB=/usr/sbin/lsusb
FXLOAD=/sbin/fxload

declare -a rules=(
03fd:0007,03fd:0008,$base/xusbdfwu.hex
03fd:0009,03fd:0008,$base/xusb_xup.hex
03fd:000d,03fd:0008,$base/xusb_emb.hex
03fd:000f,03fd:0008,$base/xusb_xlp.hex
03fd:0013,03fd:0008,$base/xusb_xp2.hex
03fd:0015,03fd:0008,$base/xusb_xse.hex
)

dev_from_id() {
        local id="$1"

        ${LSUSB} -d "$id" | sed -nre 's,^Bus (...) Device (...):.*,/dev/bus/usb/\1/\2,p'
}

declare -a look_for=( )
for spec in ${rules[*]} ; do
        declare -a words=( ${spec//,/ } )

        dev=$(dev_from_id "${words[0]}")
        if [ -n "$dev" ] ; then

                echo "programming ${words[0]} at $ev with ${words[2]}"

                sudo ${FXLOAD} -t fx2 -I "${words[2]}" -D $dev

                look_for=( ${look_for[*]} "${words[1]}" )

        else
		dev=$(dev_from_id "${words[1]}")

                if [ -n "$dev" ] && [ -c "$dev" ] ; then
                        echo >&2 "found ${words[1]} programmer: $dev"
                        exit 0
                fi

	fi
done

if [ -z "$look_for" ] ; then 
        echo >&2 "didn't find a jtag programmer"
        exit 1
fi

sleep 10

success=0
for dev in ${look_for[*]} ; do
        echo >&2 "checking if $dev came up OK"
        ${LSUSB} -d "$dev" && success=$(( $success + 1 ))
done

echo >&2 "found $success devices"
[ "$success" -gt 0 ]