129a1c00cSLuis R. Rodriguez#!/bin/bash 229a1c00cSLuis R. Rodriguez# SPDX-License-Identifier: GPL-2.0 329a1c00cSLuis R. Rodriguez 429a1c00cSLuis R. Rodriguez# Library of helpers for test scripts. 529a1c00cSLuis R. Rodriguezset -e 629a1c00cSLuis R. Rodriguez 729a1c00cSLuis R. RodriguezDIR=/sys/devices/virtual/misc/test_firmware 829a1c00cSLuis R. Rodriguez 929a1c00cSLuis R. RodriguezPROC_CONFIG="/proc/config.gz" 1029a1c00cSLuis R. RodriguezTEST_DIR=$(dirname $0) 1129a1c00cSLuis R. Rodriguez 1217980459SScott Branden# We need to load a different file to test request_firmware_into_buf 1317980459SScott Branden# I believe the issue is firmware loaded cached vs. non-cached 1417980459SScott Branden# with same filename is bungled. 1517980459SScott Branden# To reproduce rename this to test-firmware.bin 1617980459SScott BrandenTEST_FIRMWARE_INTO_BUF_FILENAME=test-firmware-into-buf.bin 1717980459SScott Branden 18a6a9be92SShuah Khan (Samsung OSG)# Kselftest framework requirement - SKIP code is 4. 19a6a9be92SShuah Khan (Samsung OSG)ksft_skip=4 20a6a9be92SShuah Khan (Samsung OSG) 2129a1c00cSLuis R. Rodriguezprint_reqs_exit() 2229a1c00cSLuis R. Rodriguez{ 2329a1c00cSLuis R. Rodriguez echo "You must have the following enabled in your kernel:" >&2 2429a1c00cSLuis R. Rodriguez cat $TEST_DIR/config >&2 25a6a9be92SShuah Khan (Samsung OSG) exit $ksft_skip 2629a1c00cSLuis R. Rodriguez} 2729a1c00cSLuis R. Rodriguez 2829a1c00cSLuis R. Rodrigueztest_modprobe() 2929a1c00cSLuis R. Rodriguez{ 3029a1c00cSLuis R. Rodriguez if [ ! -d $DIR ]; then 3129a1c00cSLuis R. Rodriguez print_reqs_exit 3229a1c00cSLuis R. Rodriguez fi 3329a1c00cSLuis R. Rodriguez} 3429a1c00cSLuis R. Rodriguez 3529a1c00cSLuis R. Rodriguezcheck_mods() 3629a1c00cSLuis R. Rodriguez{ 3729a1c00cSLuis R. Rodriguez trap "test_modprobe" EXIT 3829a1c00cSLuis R. Rodriguez if [ ! -d $DIR ]; then 3929a1c00cSLuis R. Rodriguez modprobe test_firmware 4029a1c00cSLuis R. Rodriguez fi 4129a1c00cSLuis R. Rodriguez if [ ! -f $PROC_CONFIG ]; then 4229a1c00cSLuis R. Rodriguez if modprobe configs 2>/dev/null; then 4329a1c00cSLuis R. Rodriguez echo "Loaded configs module" 4429a1c00cSLuis R. Rodriguez if [ ! -f $PROC_CONFIG ]; then 4529a1c00cSLuis R. Rodriguez echo "You must have the following enabled in your kernel:" >&2 4629a1c00cSLuis R. Rodriguez cat $TEST_DIR/config >&2 4729a1c00cSLuis R. Rodriguez echo "Resorting to old heuristics" >&2 4829a1c00cSLuis R. Rodriguez fi 4929a1c00cSLuis R. Rodriguez else 5029a1c00cSLuis R. Rodriguez echo "Failed to load configs module, using old heuristics" >&2 5129a1c00cSLuis R. Rodriguez fi 5229a1c00cSLuis R. Rodriguez fi 5329a1c00cSLuis R. Rodriguez} 54ef557787SLuis R. Rodriguez 55f5a61451SLuis R. Rodriguezcheck_setup() 56f5a61451SLuis R. Rodriguez{ 57f5a61451SLuis R. Rodriguez HAS_FW_LOADER_USER_HELPER="$(kconfig_has CONFIG_FW_LOADER_USER_HELPER=y)" 58f5a61451SLuis R. Rodriguez HAS_FW_LOADER_USER_HELPER_FALLBACK="$(kconfig_has CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y)" 59108ae07cSTakashi Iwai HAS_FW_LOADER_COMPRESS="$(kconfig_has CONFIG_FW_LOADER_COMPRESS=y)" 60b3cf21faSLuis R. Rodriguez PROC_FW_IGNORE_SYSFS_FALLBACK="0" 61b3cf21faSLuis R. Rodriguez PROC_FW_FORCE_SYSFS_FALLBACK="0" 62b3cf21faSLuis R. Rodriguez 63b3cf21faSLuis R. Rodriguez if [ -z $PROC_SYS_DIR ]; then 64b3cf21faSLuis R. Rodriguez PROC_SYS_DIR="/proc/sys/kernel" 65b3cf21faSLuis R. Rodriguez fi 66b3cf21faSLuis R. Rodriguez 67b3cf21faSLuis R. Rodriguez FW_PROC="${PROC_SYS_DIR}/firmware_config" 68b3cf21faSLuis R. Rodriguez FW_FORCE_SYSFS_FALLBACK="$FW_PROC/force_sysfs_fallback" 69b3cf21faSLuis R. Rodriguez FW_IGNORE_SYSFS_FALLBACK="$FW_PROC/ignore_sysfs_fallback" 70b3cf21faSLuis R. Rodriguez 71b3cf21faSLuis R. Rodriguez if [ -f $FW_FORCE_SYSFS_FALLBACK ]; then 72b3cf21faSLuis R. Rodriguez PROC_FW_FORCE_SYSFS_FALLBACK="$(cat $FW_FORCE_SYSFS_FALLBACK)" 73b3cf21faSLuis R. Rodriguez fi 74b3cf21faSLuis R. Rodriguez 75b3cf21faSLuis R. Rodriguez if [ -f $FW_IGNORE_SYSFS_FALLBACK ]; then 76b3cf21faSLuis R. Rodriguez PROC_FW_IGNORE_SYSFS_FALLBACK="$(cat $FW_IGNORE_SYSFS_FALLBACK)" 77b3cf21faSLuis R. Rodriguez fi 78b3cf21faSLuis R. Rodriguez 79b3cf21faSLuis R. Rodriguez if [ "$PROC_FW_FORCE_SYSFS_FALLBACK" = "1" ]; then 80b3cf21faSLuis R. Rodriguez HAS_FW_LOADER_USER_HELPER="yes" 81b3cf21faSLuis R. Rodriguez HAS_FW_LOADER_USER_HELPER_FALLBACK="yes" 82b3cf21faSLuis R. Rodriguez fi 83b3cf21faSLuis R. Rodriguez 84b3cf21faSLuis R. Rodriguez if [ "$PROC_FW_IGNORE_SYSFS_FALLBACK" = "1" ]; then 85b3cf21faSLuis R. Rodriguez HAS_FW_LOADER_USER_HELPER_FALLBACK="no" 86b3cf21faSLuis R. Rodriguez HAS_FW_LOADER_USER_HELPER="no" 87b3cf21faSLuis R. Rodriguez fi 88f5a61451SLuis R. Rodriguez 89f5a61451SLuis R. Rodriguez if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then 90f5a61451SLuis R. Rodriguez OLD_TIMEOUT="$(cat /sys/class/firmware/timeout)" 91f5a61451SLuis R. Rodriguez fi 92f5a61451SLuis R. Rodriguez 93f5a61451SLuis R. Rodriguez OLD_FWPATH="$(cat /sys/module/firmware_class/parameters/path)" 94108ae07cSTakashi Iwai 95108ae07cSTakashi Iwai if [ "$HAS_FW_LOADER_COMPRESS" = "yes" ]; then 96108ae07cSTakashi Iwai if ! which xz 2> /dev/null > /dev/null; then 97108ae07cSTakashi Iwai HAS_FW_LOADER_COMPRESS="" 98108ae07cSTakashi Iwai fi 99108ae07cSTakashi Iwai fi 100f5a61451SLuis R. Rodriguez} 101f5a61451SLuis R. Rodriguez 102f5a61451SLuis R. Rodriguezverify_reqs() 103f5a61451SLuis R. Rodriguez{ 104f5a61451SLuis R. Rodriguez if [ "$TEST_REQS_FW_SYSFS_FALLBACK" = "yes" ]; then 105f5a61451SLuis R. Rodriguez if [ ! "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then 106f5a61451SLuis R. Rodriguez echo "usermode helper disabled so ignoring test" 107344c0152SLuis Chamberlain exit 0 108f5a61451SLuis R. Rodriguez fi 109f5a61451SLuis R. Rodriguez fi 110f5a61451SLuis R. Rodriguez} 111f5a61451SLuis R. Rodriguez 112f5a61451SLuis R. Rodriguezsetup_tmp_file() 113f5a61451SLuis R. Rodriguez{ 114f5a61451SLuis R. Rodriguez FWPATH=$(mktemp -d) 115f5a61451SLuis R. Rodriguez FW="$FWPATH/test-firmware.bin" 116f5a61451SLuis R. Rodriguez echo "ABCD0123" >"$FW" 11717980459SScott Branden FW_INTO_BUF="$FWPATH/$TEST_FIRMWARE_INTO_BUF_FILENAME" 11817980459SScott Branden echo "EFGH4567" >"$FW_INTO_BUF" 119f5a61451SLuis R. Rodriguez NAME=$(basename "$FW") 120f5a61451SLuis R. Rodriguez if [ "$TEST_REQS_FW_SET_CUSTOM_PATH" = "yes" ]; then 121f5a61451SLuis R. Rodriguez echo -n "$FWPATH" >/sys/module/firmware_class/parameters/path 122f5a61451SLuis R. Rodriguez fi 123f5a61451SLuis R. Rodriguez} 124f5a61451SLuis R. Rodriguez 1259952db75SLuis R. Rodriguez__setup_random_file() 1269952db75SLuis R. Rodriguez{ 1279952db75SLuis R. Rodriguez RANDOM_FILE_PATH="$(mktemp -p $FWPATH)" 1289952db75SLuis R. Rodriguez # mktemp says dry-run -n is unsafe, so... 1299952db75SLuis R. Rodriguez if [[ "$1" = "fake" ]]; then 1309952db75SLuis R. Rodriguez rm -rf $RANDOM_FILE_PATH 1319952db75SLuis R. Rodriguez sync 1329952db75SLuis R. Rodriguez else 1339952db75SLuis R. Rodriguez echo "ABCD0123" >"$RANDOM_FILE_PATH" 1349952db75SLuis R. Rodriguez fi 1359952db75SLuis R. Rodriguez echo $RANDOM_FILE_PATH 1369952db75SLuis R. Rodriguez} 1379952db75SLuis R. Rodriguez 1389952db75SLuis R. Rodriguezsetup_random_file() 1399952db75SLuis R. Rodriguez{ 1409952db75SLuis R. Rodriguez echo $(__setup_random_file) 1419952db75SLuis R. Rodriguez} 1429952db75SLuis R. Rodriguez 1439952db75SLuis R. Rodriguezsetup_random_file_fake() 1449952db75SLuis R. Rodriguez{ 1459952db75SLuis R. Rodriguez echo $(__setup_random_file fake) 1469952db75SLuis R. Rodriguez} 1479952db75SLuis R. Rodriguez 148b3cf21faSLuis R. Rodriguezproc_set_force_sysfs_fallback() 149b3cf21faSLuis R. Rodriguez{ 150b3cf21faSLuis R. Rodriguez if [ -f $FW_FORCE_SYSFS_FALLBACK ]; then 151b3cf21faSLuis R. Rodriguez echo -n $1 > $FW_FORCE_SYSFS_FALLBACK 152b3cf21faSLuis R. Rodriguez check_setup 153b3cf21faSLuis R. Rodriguez fi 154b3cf21faSLuis R. Rodriguez} 155b3cf21faSLuis R. Rodriguez 156b3cf21faSLuis R. Rodriguezproc_set_ignore_sysfs_fallback() 157b3cf21faSLuis R. Rodriguez{ 158b3cf21faSLuis R. Rodriguez if [ -f $FW_IGNORE_SYSFS_FALLBACK ]; then 159b3cf21faSLuis R. Rodriguez echo -n $1 > $FW_IGNORE_SYSFS_FALLBACK 160b3cf21faSLuis R. Rodriguez check_setup 161b3cf21faSLuis R. Rodriguez fi 162b3cf21faSLuis R. Rodriguez} 163b3cf21faSLuis R. Rodriguez 164b3cf21faSLuis R. Rodriguezproc_restore_defaults() 165b3cf21faSLuis R. Rodriguez{ 166b3cf21faSLuis R. Rodriguez proc_set_force_sysfs_fallback 0 167b3cf21faSLuis R. Rodriguez proc_set_ignore_sysfs_fallback 0 168b3cf21faSLuis R. Rodriguez} 169b3cf21faSLuis R. Rodriguez 170f5a61451SLuis R. Rodrigueztest_finish() 171f5a61451SLuis R. Rodriguez{ 172f5a61451SLuis R. Rodriguez if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then 173f5a61451SLuis R. Rodriguez echo "$OLD_TIMEOUT" >/sys/class/firmware/timeout 174f5a61451SLuis R. Rodriguez fi 175f5a61451SLuis R. Rodriguez if [ "$TEST_REQS_FW_SET_CUSTOM_PATH" = "yes" ]; then 176e5384092SBen Hutchings if [ "$OLD_FWPATH" = "" ]; then 177e5384092SBen Hutchings # A zero-length write won't work; write a null byte 178e5384092SBen Hutchings printf '\000' >/sys/module/firmware_class/parameters/path 179e5384092SBen Hutchings else 180f5a61451SLuis R. Rodriguez echo -n "$OLD_FWPATH" >/sys/module/firmware_class/parameters/path 181f5a61451SLuis R. Rodriguez fi 182e5384092SBen Hutchings fi 183f5a61451SLuis R. Rodriguez if [ -f $FW ]; then 184f5a61451SLuis R. Rodriguez rm -f "$FW" 185f5a61451SLuis R. Rodriguez fi 18617980459SScott Branden if [ -f $FW_INTO_BUF ]; then 18717980459SScott Branden rm -f "$FW_INTO_BUF" 18817980459SScott Branden fi 189f5a61451SLuis R. Rodriguez if [ -d $FWPATH ]; then 190f5a61451SLuis R. Rodriguez rm -rf "$FWPATH" 191f5a61451SLuis R. Rodriguez fi 192b3cf21faSLuis R. Rodriguez proc_restore_defaults 193f5a61451SLuis R. Rodriguez} 194f5a61451SLuis R. Rodriguez 195ef557787SLuis R. Rodriguezkconfig_has() 196ef557787SLuis R. Rodriguez{ 197ef557787SLuis R. Rodriguez if [ -f $PROC_CONFIG ]; then 198ef557787SLuis R. Rodriguez if zgrep -q $1 $PROC_CONFIG 2>/dev/null; then 199ef557787SLuis R. Rodriguez echo "yes" 200ef557787SLuis R. Rodriguez else 201ef557787SLuis R. Rodriguez echo "no" 202ef557787SLuis R. Rodriguez fi 203ef557787SLuis R. Rodriguez else 204ef557787SLuis R. Rodriguez # We currently don't have easy heuristics to infer this 205ef557787SLuis R. Rodriguez # so best we can do is just try to use the kernel assuming 206ef557787SLuis R. Rodriguez # you had enabled it. This matches the old behaviour. 207ef557787SLuis R. Rodriguez if [ "$1" = "CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y" ]; then 208ef557787SLuis R. Rodriguez echo "yes" 209ef557787SLuis R. Rodriguez elif [ "$1" = "CONFIG_FW_LOADER_USER_HELPER=y" ]; then 210ef557787SLuis R. Rodriguez if [ -d /sys/class/firmware/ ]; then 211ef557787SLuis R. Rodriguez echo yes 212ef557787SLuis R. Rodriguez else 213ef557787SLuis R. Rodriguez echo no 214ef557787SLuis R. Rodriguez fi 215ef557787SLuis R. Rodriguez fi 216ef557787SLuis R. Rodriguez fi 217ef557787SLuis R. Rodriguez} 218