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# Common shell utility functions
function iter_pci_class_code() {
local class="$(printf %02x $((0x$1)))"
local subclass="$(printf %02x $((0x$2)))"
local progif="$(printf %02x $((0x$3)))"
if hash lspci &>/dev/null; then
if [ "$progif" != "00" ]; then
lspci -mm -n -D | \
grep -i -- "-p${progif}" | \
awk -v cc="\"${class}${subclass}\"" -F " " \
'{if (cc ~ $2) print $1}' | tr -d '"'
else
lspci -mm -n -D | \
awk -v cc="\"${class}${subclass}\"" -F " " \
'{if (cc ~ $2) print $1}' | tr -d '"'
fi
elif hash pciconf &>/dev/null; then
addr=($(pciconf -l | grep -i "class=0x${class}${subclass}${progif}" | \
cut -d$'\t' -f1 | sed -e 's/^[a-zA-Z0-9_]*@pci//g' | tr ':' ' '))
printf "%04x:%02x:%02x:%x\n" ${addr[0]} ${addr[1]} ${addr[2]} ${addr[3]}
else
echo "Missing PCI enumeration utility"
exit 1
fi
}
function iter_pci_dev_id() {
local ven_id="$(printf %04x $((0x$1)))"
local dev_id="$(printf %04x $((0x$2)))"
if hash lspci &>/dev/null; then
lspci -mm -n -D | awk -v ven="\"$ven_id\"" -v dev="\"${dev_id}\"" -F " " \
'{if (ven ~ $3 && dev ~ $4) print $1}' | tr -d '"'
elif hash pciconf &>/dev/null; then
addr=($(pciconf -l | grep -i "chip=0x${dev_id}${ven_id}" | \
cut -d$'\t' -f1 | sed -e 's/^[a-zA-Z0-9_]*@pci//g' | tr ':' ' '))
printf "%04x:%02x:%02x:%x\n" ${addr[0]} ${addr[1]} ${addr[2]} ${addr[3]}
else
echo "Missing PCI enumeration utility"
exit 1
fi
}
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