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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
#
# Copyright (c) 2022, 2024 Collabora Ltd
SYSFS_SUPPLIES=/sys/class/power_supply
calc() {
awk "BEGIN { print $* }";
}
test_sysfs_prop() {
PROP="$1"
VALUE="$2" # optional
PROP_PATH="$SYSFS_SUPPLIES"/"$DEVNAME"/"$PROP"
TEST_NAME="$DEVNAME".sysfs."$PROP"
if [ -z "$VALUE" ]; then
ktap_test_result "$TEST_NAME" [ -f "$PROP_PATH" ]
else
ktap_test_result "$TEST_NAME" grep -q "$VALUE" "$PROP_PATH"
fi
}
to_human_readable_unit() {
VALUE="$1"
UNIT="$2"
case "$VALUE" in
*[!0-9]* ) return ;; # Not a number
esac
if [ "$UNIT" = "uA" ]; then
new_unit="mA"
div=1000
elif [ "$UNIT" = "uV" ]; then
new_unit="V"
div=1000000
elif [ "$UNIT" = "uAh" ]; then
new_unit="Ah"
div=1000000
elif [ "$UNIT" = "uW" ]; then
new_unit="mW"
div=1000
elif [ "$UNIT" = "uWh" ]; then
new_unit="Wh"
div=1000000
else
return
fi
value_converted=$(calc "$VALUE"/"$div")
echo "$value_converted" "$new_unit"
}
_check_sysfs_prop_available() {
PROP=$1
PROP_PATH="$SYSFS_SUPPLIES"/"$DEVNAME"/"$PROP"
TEST_NAME="$DEVNAME".sysfs."$PROP"
if [ ! -e "$PROP_PATH" ] ; then
ktap_test_skip "$TEST_NAME"
return 1
fi
if ! cat "$PROP_PATH" >/dev/null; then
ktap_print_msg "Failed to read"
ktap_test_fail "$TEST_NAME"
return 1
fi
return 0
}
test_sysfs_prop_optional() {
PROP=$1
UNIT=$2 # optional
TEST_NAME="$DEVNAME".sysfs."$PROP"
_check_sysfs_prop_available "$PROP" || return
DATA=$(cat "$SYSFS_SUPPLIES"/"$DEVNAME"/"$PROP")
ktap_print_msg "Reported: '$DATA' $UNIT ($(to_human_readable_unit "$DATA" "$UNIT"))"
ktap_test_pass "$TEST_NAME"
}
test_sysfs_prop_optional_range() {
PROP=$1
MIN=$2
MAX=$3
UNIT=$4 # optional
TEST_NAME="$DEVNAME".sysfs."$PROP"
_check_sysfs_prop_available "$PROP" || return
DATA=$(cat "$SYSFS_SUPPLIES"/"$DEVNAME"/"$PROP")
if [ "$DATA" -lt "$MIN" ] || [ "$DATA" -gt "$MAX" ]; then
ktap_print_msg "'$DATA' is out of range (min=$MIN, max=$MAX)"
ktap_test_fail "$TEST_NAME"
else
ktap_print_msg "Reported: '$DATA' $UNIT ($(to_human_readable_unit "$DATA" "$UNIT"))"
ktap_test_pass "$TEST_NAME"
fi
}
test_sysfs_prop_optional_list() {
PROP=$1
LIST=$2
TEST_NAME="$DEVNAME".sysfs."$PROP"
_check_sysfs_prop_available "$PROP" || return
DATA=$(cat "$SYSFS_SUPPLIES"/"$DEVNAME"/"$PROP")
valid=0
OLDIFS=$IFS
IFS=","
for item in $LIST; do
if [ "$DATA" = "$item" ]; then
valid=1
break
fi
done
if [ "$valid" -eq 1 ]; then
ktap_print_msg "Reported: '$DATA'"
ktap_test_pass "$TEST_NAME"
else
ktap_print_msg "'$DATA' is not a valid value for this property"
ktap_test_fail "$TEST_NAME"
fi
IFS=$OLDIFS
}
dump_file() {
FILE="$1"
while read -r line; do
ktap_print_msg "$line"
done < "$FILE"
}
__test_uevent_prop() {
PROP="$1"
OPTIONAL="$2"
VALUE="$3" # optional
UEVENT_PATH="$SYSFS_SUPPLIES"/"$DEVNAME"/uevent
TEST_NAME="$DEVNAME".uevent."$PROP"
if ! grep -q "POWER_SUPPLY_$PROP=" "$UEVENT_PATH"; then
if [ "$OPTIONAL" -eq 1 ]; then
ktap_test_skip "$TEST_NAME"
else
ktap_print_msg "Missing property"
ktap_test_fail "$TEST_NAME"
fi
return
fi
if ! grep -q "POWER_SUPPLY_$PROP=$VALUE" "$UEVENT_PATH"; then
ktap_print_msg "Invalid value for uevent property, dumping..."
dump_file "$UEVENT_PATH"
ktap_test_fail "$TEST_NAME"
else
ktap_test_pass "$TEST_NAME"
fi
}
test_uevent_prop() {
__test_uevent_prop "$1" 0 "$2"
}
test_uevent_prop_optional() {
__test_uevent_prop "$1" 1 "$2"
}
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