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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Library of helpers for test scripts.
set -e
DIR=/sys/devices/virtual/misc/test_firmware
PROC_CONFIG="/proc/config.gz"
TEST_DIR=$(dirname $0)
print_reqs_exit()
{
echo "You must have the following enabled in your kernel:" >&2
cat $TEST_DIR/config >&2
exit 1
}
test_modprobe()
{
if [ ! -d $DIR ]; then
print_reqs_exit
fi
}
check_mods()
{
trap "test_modprobe" EXIT
if [ ! -d $DIR ]; then
modprobe test_firmware
fi
if [ ! -f $PROC_CONFIG ]; then
if modprobe configs 2>/dev/null; then
echo "Loaded configs module"
if [ ! -f $PROC_CONFIG ]; then
echo "You must have the following enabled in your kernel:" >&2
cat $TEST_DIR/config >&2
echo "Resorting to old heuristics" >&2
fi
else
echo "Failed to load configs module, using old heuristics" >&2
fi
fi
}
kconfig_has()
{
if [ -f $PROC_CONFIG ]; then
if zgrep -q $1 $PROC_CONFIG 2>/dev/null; then
echo "yes"
else
echo "no"
fi
else
# We currently don't have easy heuristics to infer this
# so best we can do is just try to use the kernel assuming
# you had enabled it. This matches the old behaviour.
if [ "$1" = "CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y" ]; then
echo "yes"
elif [ "$1" = "CONFIG_FW_LOADER_USER_HELPER=y" ]; then
if [ -d /sys/class/firmware/ ]; then
echo yes
else
echo no
fi
fi
fi
}
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