115 lines
3.5 KiB
Bash
Executable File
115 lines
3.5 KiB
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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#
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# Copyright (c) 2022, 2024 Collabora Ltd
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#
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# This test validates the power supply uAPI: namely, the files in sysfs and
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# lines in uevent that expose the power supply properties.
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#
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# By default all power supplies available are tested. Optionally the name of a
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# power supply can be passed as a parameter to test only that one instead.
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DIR="$(dirname "$(readlink -f "$0")")"
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. "${DIR}"/../kselftest/ktap_helpers.sh
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. "${DIR}"/helpers.sh
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count_tests() {
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SUPPLIES=$1
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# This needs to be updated every time a new test is added.
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NUM_TESTS=33
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total_tests=0
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for i in $SUPPLIES; do
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total_tests=$(("$total_tests" + "$NUM_TESTS"))
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done
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echo "$total_tests"
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}
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ktap_print_header
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SYSFS_SUPPLIES=/sys/class/power_supply/
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if [ $# -eq 0 ]; then
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supplies=$(ls "$SYSFS_SUPPLIES")
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else
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supplies=$1
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fi
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ktap_set_plan "$(count_tests "$supplies")"
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for DEVNAME in $supplies; do
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ktap_print_msg Testing device "$DEVNAME"
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if [ ! -d "$SYSFS_SUPPLIES"/"$DEVNAME" ]; then
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ktap_test_fail "$DEVNAME".exists
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ktap_exit_fail_msg Device does not exist
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fi
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ktap_test_pass "$DEVNAME".exists
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test_uevent_prop NAME "$DEVNAME"
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test_sysfs_prop type
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SUPPLY_TYPE=$(cat "$SYSFS_SUPPLIES"/"$DEVNAME"/type)
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# This fails on kernels < 5.8 (needs 2ad3d74e3c69f)
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test_uevent_prop TYPE "$SUPPLY_TYPE"
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test_sysfs_prop_optional usb_type
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test_sysfs_prop_optional_range online 0 2
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test_sysfs_prop_optional_range present 0 1
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test_sysfs_prop_optional_list status "Unknown","Charging","Discharging","Not charging","Full"
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# Capacity is reported as percentage, thus any value less than 0 and
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# greater than 100 are not allowed.
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test_sysfs_prop_optional_range capacity 0 100 "%"
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test_sysfs_prop_optional_list capacity_level "Unknown","Critical","Low","Normal","High","Full"
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test_sysfs_prop_optional model_name
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test_sysfs_prop_optional manufacturer
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test_sysfs_prop_optional serial_number
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test_sysfs_prop_optional_list technology "Unknown","NiMH","Li-ion","Li-poly","LiFe","NiCd","LiMn"
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test_sysfs_prop_optional cycle_count
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test_sysfs_prop_optional_list scope "Unknown","System","Device"
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test_sysfs_prop_optional input_current_limit "uA"
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test_sysfs_prop_optional input_voltage_limit "uV"
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# Technically the power-supply class does not limit reported values.
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# E.g. one could expose an RTC backup-battery, which goes below 1.5V or
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# an electric vehicle battery with over 300V. But most devices do not
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# have a step-up capable regulator behind the battery and operate with
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# voltages considered safe to touch, so we limit the allowed range to
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# 1.8V-60V to catch drivers reporting incorrectly scaled values. E.g. a
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# common mistake is reporting data in mV instead of µV.
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test_sysfs_prop_optional_range voltage_now 1800000 60000000 "uV"
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test_sysfs_prop_optional_range voltage_min 1800000 60000000 "uV"
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test_sysfs_prop_optional_range voltage_max 1800000 60000000 "uV"
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test_sysfs_prop_optional_range voltage_min_design 1800000 60000000 "uV"
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test_sysfs_prop_optional_range voltage_max_design 1800000 60000000 "uV"
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# current based systems
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test_sysfs_prop_optional current_now "uA"
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test_sysfs_prop_optional current_max "uA"
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test_sysfs_prop_optional charge_now "uAh"
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test_sysfs_prop_optional charge_full "uAh"
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test_sysfs_prop_optional charge_full_design "uAh"
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# power based systems
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test_sysfs_prop_optional power_now "uW"
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test_sysfs_prop_optional energy_now "uWh"
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test_sysfs_prop_optional energy_full "uWh"
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test_sysfs_prop_optional energy_full_design "uWh"
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test_sysfs_prop_optional energy_full_design "uWh"
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done
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ktap_finished
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