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UBUNTU: SAUCE: selftests: gpio: add test cases for gpio-aggregator
BugLink: https://bugs.launchpad.net/bugs/2103496 Add a set of tests for gpio-aggregator module. This test covers both pre-existing new_device/delete_device interface and new configfs-based interface. [koichiroden: cherry-pick [PATCH v6 9/9] from: https://lore.kernel.org/all/20250315164123.1855142-1-koichiro.den@canonical.com/] Signed-off-by: Koichiro Den <koichiro.den@canonical.com> Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
This commit is contained in:
Koichiro Den
Paolo Pisati
parent
e23e28cfd6
commit
a60b1cebe1
@ -1,6 +1,6 @@
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# SPDX-License-Identifier: GPL-2.0
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TEST_PROGS := gpio-mockup.sh gpio-sim.sh
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TEST_PROGS := gpio-mockup.sh gpio-sim.sh gpio-aggregator.sh
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TEST_FILES := gpio-mockup-sysfs.sh
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TEST_GEN_PROGS_EXTENDED := gpio-mockup-cdev gpio-chip-info gpio-line-name
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CFLAGS += -O2 -g -Wall $(KHDR_INCLUDES)
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@ -2,3 +2,4 @@ CONFIG_GPIOLIB=y
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CONFIG_GPIO_CDEV=y
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CONFIG_GPIO_MOCKUP=m
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CONFIG_GPIO_SIM=m
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CONFIG_GPIO_AGGREGATOR=m
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723
tools/testing/selftests/gpio/gpio-aggregator.sh
Executable file
723
tools/testing/selftests/gpio/gpio-aggregator.sh
Executable file
@ -0,0 +1,723 @@
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#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2025 Bartosz Golaszewski <brgl@bgdev.pl>
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# Copyright (C) 2025 Koichiro Den <koichiro.den@canonical.com>
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BASE_DIR=$(dirname "$0")
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CONFIGFS_SIM_DIR="/sys/kernel/config/gpio-sim"
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CONFIGFS_AGG_DIR="/sys/kernel/config/gpio-aggregator"
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SYSFS_AGG_DIR="/sys/bus/platform/drivers/gpio-aggregator"
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MODULE="gpio-aggregator"
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fail() {
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echo "$*" >&2
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echo "GPIO $MODULE test FAIL"
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exit 1
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}
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skip() {
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echo "$*" >&2
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echo "GPIO $MODULE test SKIP"
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exit 4
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}
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# gpio-sim
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sim_enable_chip() {
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local CHIP=$1
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echo 1 > "$CONFIGFS_SIM_DIR/$CHIP/live" || fail "Unable to enable the chip"
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}
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sim_disable_chip() {
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local CHIP=$1
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echo 0 > "$CONFIGFS_SIM_DIR/$CHIP/live" || fail "Unable to disable the chip"
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}
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sim_configfs_cleanup() {
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local NOCHECK=${1:-0}
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for CHIP_DIR in "$CONFIGFS_SIM_DIR"/*; do
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[ -d "$CHIP_DIR" ] || continue
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echo 0 > "$CHIP_DIR/live"
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find "$CHIP_DIR" -depth -type d -exec rmdir {} \;
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done
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[ "$NOCHECK" -eq 1 ] && return;
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remaining=$(find "$CONFIGFS_SIM_DIR" -mindepth 1 -type d 2> /dev/null)
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if [ -n "$remaining" ]; then
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fail "Directories remain in $CONFIGFS_SIM_DIR: $remaining"
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fi
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}
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sim_get_chip_label() {
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local CHIP=$1
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local BANK=$2
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local CHIP_NAME=$(cat "$CONFIGFS_SIM_DIR/$CHIP/$BANK/chip_name" 2> /dev/null) || \
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fail "Unable to read the chip name from configfs"
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$BASE_DIR/gpio-chip-info "/dev/$CHIP_NAME" label || \
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fail "Unable to read the chip label from the character device"
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}
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# gpio-aggregator
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agg_create_chip() {
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local CHIP=$1
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mkdir "$CONFIGFS_AGG_DIR/$CHIP"
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}
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agg_remove_chip() {
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local CHIP=$1
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find "$CONFIGFS_AGG_DIR/$CHIP/" -depth -type d -exec rmdir {} \; || \
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fail "Unable to remove $CONFIGFS_AGG_DIR/$CHIP"
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}
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agg_create_line() {
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local CHIP=$1
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local LINE=$2
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mkdir "$CONFIGFS_AGG_DIR/$CHIP/$LINE"
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}
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agg_remove_line() {
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local CHIP=$1
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local LINE=$2
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rmdir "$CONFIGFS_AGG_DIR/$CHIP/$LINE"
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}
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agg_set_key() {
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local CHIP=$1
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local LINE=$2
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local KEY=$3
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echo "$KEY" > "$CONFIGFS_AGG_DIR/$CHIP/$LINE/key" || fail "Unable to set the lookup key"
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}
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agg_set_offset() {
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local CHIP=$1
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local LINE=$2
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local OFFSET=$3
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echo "$OFFSET" > "$CONFIGFS_AGG_DIR/$CHIP/$LINE/offset" || \
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fail "Unable to set the lookup offset"
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}
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agg_set_line_name() {
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local CHIP=$1
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local LINE=$2
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local NAME=$3
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echo "$NAME" > "$CONFIGFS_AGG_DIR/$CHIP/$LINE/name" || fail "Unable to set the line name"
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}
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agg_enable_chip() {
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local CHIP=$1
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echo 1 > "$CONFIGFS_AGG_DIR/$CHIP/live" || fail "Unable to enable the chip"
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}
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agg_disable_chip() {
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local CHIP=$1
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echo 0 > "$CONFIGFS_AGG_DIR/$CHIP/live" || fail "Unable to disable the chip"
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}
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agg_configfs_cleanup() {
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local NOCHECK=${1:-0}
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for CHIP_DIR in "$CONFIGFS_AGG_DIR"/*; do
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[ -d "$CHIP_DIR" ] || continue
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echo 0 > "$CHIP_DIR/live" 2> /dev/null
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find "$CHIP_DIR" -depth -type d -exec rmdir {} \;
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done
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[ "$NOCHECK" -eq 1 ] && return;
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remaining=$(find "$CONFIGFS_AGG_DIR" -mindepth 1 -type d 2> /dev/null)
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if [ -n "$remaining" ]; then
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fail "Directories remain in $CONFIGFS_AGG_DIR: $remaining"
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fi
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}
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agg_configfs_dev_name() {
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local CHIP=$1
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cat "$CONFIGFS_AGG_DIR/$CHIP/dev_name" 2> /dev/null || \
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fail "Unable to read the device name from configfs"
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}
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agg_configfs_chip_name() {
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local CHIP=$1
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local DEV_NAME=$(agg_configfs_dev_name "$CHIP")
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local CHIP_LIST=$(find "/sys/devices/platform/$DEV_NAME" \
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-maxdepth 1 -type d -name "gpiochip[0-9]*" 2> /dev/null)
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local CHIP_COUNT=$(echo "$CHIP_LIST" | wc -l)
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if [ -z "$CHIP_LIST" ]; then
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fail "No gpiochip in /sys/devices/platform/$DEV_NAME/"
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elif [ "$CHIP_COUNT" -ne 1 ]; then
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fail "Multiple gpiochips unexpectedly found: $CHIP_LIST"
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fi
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basename "$CHIP_LIST"
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}
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agg_get_chip_num_lines() {
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local CHIP=$1
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local N_DIR=$(ls -d $CONFIGFS_AGG_DIR/$CHIP/line[0-9]* 2> /dev/null | wc -l)
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local N_LINES
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if [ "$(cat $CONFIGFS_AGG_DIR/$CHIP/live)" = 0 ]; then
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echo "$N_DIR"
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else
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N_LINES=$(
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$BASE_DIR/gpio-chip-info \
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"/dev/$(agg_configfs_chip_name "$CHIP")" num-lines
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) || fail "Unable to read the number of lines from the character device"
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if [ $N_DIR != $N_LINES ]; then
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fail "Discrepancy between two sources for the number of lines"
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fi
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echo "$N_LINES"
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fi
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}
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agg_get_chip_label() {
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local CHIP=$1
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$BASE_DIR/gpio-chip-info "/dev/$(agg_configfs_chip_name "$CHIP")" label || \
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fail "Unable to read the chip label from the character device"
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}
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agg_get_line_name() {
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local CHIP=$1
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local OFFSET=$2
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local NAME_CONFIGFS=$(cat "$CONFIGFS_AGG_DIR/$CHIP/line${OFFSET}/name")
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local NAME_CDEV
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if [ "$(cat "$CONFIGFS_AGG_DIR/$CHIP/live")" = 0 ]; then
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echo "$NAME_CONFIGFS"
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else
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NAME_CDEV=$(
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$BASE_DIR/gpio-line-name \
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"/dev/$(agg_configfs_chip_name "$CHIP")" "$OFFSET"
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) || fail "Unable to read the line name from the character device"
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if [ "$NAME_CONFIGFS" != "$NAME_CDEV" ]; then
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fail "Discrepancy between two sources for the name of line"
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fi
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echo "$NAME_CDEV"
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fi
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}
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# Load the modules. This will pull in configfs if needed too.
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modprobe gpio-sim || skip "unable to load the gpio-sim module"
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modprobe gpio-aggregator || skip "unable to load the gpio-aggregator module"
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# Make sure configfs is mounted at /sys/kernel/config. Wait a bit if needed.
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for IDX in $(seq 5); do
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if [ "$IDX" -eq "5" ]; then
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skip "configfs not mounted at /sys/kernel/config"
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fi
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mountpoint -q /sys/kernel/config && break
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sleep 0.1
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done
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# If the module was already loaded: remove all previous chips
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agg_configfs_cleanup
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sim_configfs_cleanup
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trap "exit 1" SIGTERM SIGINT
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trap "agg_configfs_cleanup 1; sim_configfs_cleanup 1" EXIT
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# Use gpio-sim chips as the test backend
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for CHIP in $(seq -f "chip%g" 0 1); do
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mkdir $CONFIGFS_SIM_DIR/$CHIP
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for BANK in $(seq -f "bank%g" 0 1); do
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mkdir -p "$CONFIGFS_SIM_DIR/$CHIP/$BANK"
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echo "${CHIP}_${BANK}" > "$CONFIGFS_SIM_DIR/$CHIP/$BANK/label" || \
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fail "unable to set the chip label"
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echo 16 > "$CONFIGFS_SIM_DIR/$CHIP/$BANK/num_lines" || \
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fail "unable to set the number of lines"
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for IDX in $(seq 0 15); do
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LINE_NAME="${CHIP}${BANK}_${IDX}"
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LINE_DIR="$CONFIGFS_SIM_DIR/$CHIP/$BANK/line$IDX"
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mkdir -p $LINE_DIR
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echo "$LINE_NAME" > "$LINE_DIR/name" || fail "unable to set the line name"
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done
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done
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sim_enable_chip "$CHIP"
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done
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echo "1. GPIO aggregator creation/deletion"
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echo "1.1. Creation/deletion via configfs"
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echo "1.1.1. Minimum creation/deletion"
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agg_create_chip agg0
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agg_create_line agg0 line0
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agg_set_key agg0 line0 "$(sim_get_chip_label chip0 bank0)"
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agg_set_offset agg0 line0 5
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agg_set_line_name agg0 line0 test0
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agg_enable_chip agg0
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test "$(cat "$CONFIGFS_AGG_DIR/agg0/live")" = 1 || fail "chip unexpectedly dead"
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test "$(agg_get_chip_label agg0)" = "$(agg_configfs_dev_name agg0)" || \
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fail "label is inconsistent"
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test "$(agg_get_chip_num_lines agg0)" = "1" || fail "number of lines is not 1"
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test "$(agg_get_line_name agg0 0)" = "test0" || fail "line name is unset"
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agg_disable_chip agg0
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agg_remove_line agg0 line0
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agg_remove_chip agg0
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echo "1.1.2. Complex creation/deletion"
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agg_create_chip agg0
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agg_create_line agg0 line0
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agg_create_line agg0 line1
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agg_create_line agg0 line2
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agg_create_line agg0 line3
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agg_set_key agg0 line0 "$(sim_get_chip_label chip0 bank0)"
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agg_set_key agg0 line1 "$(sim_get_chip_label chip0 bank1)"
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agg_set_key agg0 line2 "$(sim_get_chip_label chip1 bank0)"
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agg_set_key agg0 line3 "$(sim_get_chip_label chip1 bank1)"
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agg_set_offset agg0 line0 1
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agg_set_offset agg0 line1 3
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agg_set_offset agg0 line2 5
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agg_set_offset agg0 line3 7
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agg_set_line_name agg0 line0 test0
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agg_set_line_name agg0 line1 test1
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agg_set_line_name agg0 line2 test2
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agg_set_line_name agg0 line3 test3
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agg_enable_chip agg0
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test "$(cat "$CONFIGFS_AGG_DIR/agg0/live")" = 1 || fail "chip unexpectedly dead"
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test "$(agg_get_chip_label agg0)" = "$(agg_configfs_dev_name agg0)" || \
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fail "label is inconsistent"
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test "$(agg_get_chip_num_lines agg0)" = "4" || fail "number of lines is not 1"
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test "$(agg_get_line_name agg0 0)" = "test0" || fail "line name is unset"
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test "$(agg_get_line_name agg0 1)" = "test1" || fail "line name is unset"
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test "$(agg_get_line_name agg0 2)" = "test2" || fail "line name is unset"
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test "$(agg_get_line_name agg0 3)" = "test3" || fail "line name is unset"
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agg_disable_chip agg0
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agg_remove_line agg0 line0
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agg_remove_line agg0 line1
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agg_remove_line agg0 line2
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agg_remove_line agg0 line3
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agg_remove_chip agg0
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echo "1.1.3. Can't instantiate a chip without any line"
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agg_create_chip agg0
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echo 1 > "$CONFIGFS_AGG_DIR/agg0/live" 2> /dev/null && fail "chip unexpectedly enabled"
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test "$(cat "$CONFIGFS_AGG_DIR/agg0/live")" = 0 || fail "chip unexpectedly alive"
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agg_remove_chip agg0
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echo "1.1.4. Can't instantiate a chip with invalid configuration"
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agg_create_chip agg0
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agg_create_line agg0 line0
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agg_set_key agg0 line0 "chipX_bankX"
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agg_set_offset agg0 line0 99
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agg_set_line_name agg0 line0 test0
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echo 1 > "$CONFIGFS_AGG_DIR/agg0/live" 2> /dev/null && fail "chip unexpectedly enabled"
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test "$(cat "$CONFIGFS_AGG_DIR/agg0/live")" = 0 || fail "chip unexpectedly alive"
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agg_remove_line agg0 line0
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agg_remove_chip agg0
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echo "1.1.5. Can't instantiate a chip asynchronously via deferred probe"
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agg_create_chip agg0
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agg_create_line agg0 line0
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agg_set_key agg0 line0 "chip0_bank0"
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agg_set_offset agg0 line0 5
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agg_set_line_name agg0 line0 test0
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sim_disable_chip chip0
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echo 1 > "$CONFIGFS_AGG_DIR/agg0/live" 2> /dev/null && fail "chip unexpectedly enabled"
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test "$(cat "$CONFIGFS_AGG_DIR/agg0/live")" = 0 || fail "chip unexpectedly alive"
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sim_enable_chip chip0
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sleep 1
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test "$(cat "$CONFIGFS_AGG_DIR/agg0/live")" = 0 || \
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fail "chip unexpectedly transitioned to 'live' state"
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agg_remove_line agg0 line0
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agg_remove_chip agg0
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echo "1.2. Creation/deletion via sysfs"
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echo "1.2.1. Minimum creation/deletion"
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echo "chip0_bank0 0" > "$SYSFS_AGG_DIR/new_device"
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CHIPNAME=$(agg_configfs_chip_name _sysfs.0)
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test "$(cat "$CONFIGFS_AGG_DIR/_sysfs.0/live")" = 1 || fail "chip unexpectedly dead"
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test "$(agg_get_chip_label _sysfs.0)" = "$(agg_configfs_dev_name _sysfs.0)" || \
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fail "label is inconsistent"
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test "$(agg_get_chip_num_lines _sysfs.0)" = "1" || fail "number of lines is not 1"
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test "$(agg_get_line_name _sysfs.0 0)" = "" || fail "line name is unset"
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echo "$(agg_configfs_dev_name _sysfs.0)" > "$SYSFS_AGG_DIR/delete_device"
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test -d $CONFIGFS_AGG_DIR/_sysfs.0 && fail "_sysfs.0 unexpectedly remains"
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test -d /dev/${CHIPNAME} && fail "/dev/${CHIPNAME} unexpectedly remains"
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echo "1.2.2. Complex creation/deletion"
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echo "chip0bank0_0 chip1_bank1 10-11" > "$SYSFS_AGG_DIR/new_device"
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CHIPNAME=$(agg_configfs_chip_name _sysfs.0)
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test "$(cat "$CONFIGFS_AGG_DIR/_sysfs.0/live")" = 1 || fail "chip unexpectedly dead"
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test "$(agg_get_chip_label _sysfs.0)" = "$(agg_configfs_dev_name _sysfs.0)" || \
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fail "label is inconsistent"
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test "$(agg_get_chip_num_lines _sysfs.0)" = "3" || fail "number of lines is not 3"
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test "$(agg_get_line_name _sysfs.0 0)" = "" || fail "line name is unset"
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test "$(agg_get_line_name _sysfs.0 1)" = "" || fail "line name is unset"
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test "$(agg_get_line_name _sysfs.0 2)" = "" || fail "line name is unset"
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echo "$(agg_configfs_dev_name _sysfs.0)" > "$SYSFS_AGG_DIR/delete_device"
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test -d $CONFIGFS_AGG_DIR/_sysfs.0 && fail "_sysfs.0 unexpectedly remains"
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test -d /dev/${CHIPNAME} && fail "/dev/${CHIPNAME} unexpectedly remains"
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echo "1.2.3. Asynchronous creation with deferred probe"
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sim_disable_chip chip0
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echo 'chip0_bank0 0' > $SYSFS_AGG_DIR/new_device
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sleep 1
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test "$(cat "$CONFIGFS_AGG_DIR/_sysfs.0/live")" = 0 || fail "chip unexpectedly alive"
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sim_enable_chip chip0
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sleep 1
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CHIPNAME=$(agg_configfs_chip_name _sysfs.0)
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test "$(cat "$CONFIGFS_AGG_DIR/_sysfs.0/live")" = 1 || fail "chip unexpectedly remains dead"
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test "$(agg_get_chip_label _sysfs.0)" = "$(agg_configfs_dev_name _sysfs.0)" || \
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fail "label is inconsistent"
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test "$(agg_get_chip_num_lines _sysfs.0)" = "1" || fail "number of lines is not 1"
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test "$(agg_get_line_name _sysfs.0 0)" = "" || fail "line name unexpectedly set"
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echo "$(agg_configfs_dev_name _sysfs.0)" > "$SYSFS_AGG_DIR/delete_device"
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test -d $CONFIGFS_AGG_DIR/_sysfs.0 && fail "_sysfs.0 unexpectedly remains"
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test -d /dev/${CHIPNAME} && fail "/dev/${CHIPNAME} unexpectedly remains"
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echo "1.2.4. Can't instantiate a chip with invalid configuration"
|
||||
echo "xyz 0" > "$SYSFS_AGG_DIR/new_device"
|
||||
test "$(cat $CONFIGFS_AGG_DIR/_sysfs.0/live)" = 0 || fail "chip unexpectedly alive"
|
||||
echo "$(agg_configfs_dev_name _sysfs.0)" > "$SYSFS_AGG_DIR/delete_device"
|
||||
|
||||
echo "2. GPIO aggregator configuration"
|
||||
|
||||
echo "2.1. Configuring aggregators instantiated via configfs"
|
||||
setup_2_1() {
|
||||
agg_create_chip agg0
|
||||
agg_create_line agg0 line0
|
||||
agg_create_line agg0 line1
|
||||
agg_set_key agg0 line0 "$(sim_get_chip_label chip0 bank0)"
|
||||
agg_set_key agg0 line1 "$(sim_get_chip_label chip1 bank0)"
|
||||
agg_set_offset agg0 line0 1
|
||||
agg_set_offset agg0 line1 3
|
||||
agg_set_line_name agg0 line0 test0
|
||||
agg_set_line_name agg0 line1 test1
|
||||
agg_enable_chip agg0
|
||||
}
|
||||
teardown_2_1() {
|
||||
agg_configfs_cleanup
|
||||
}
|
||||
|
||||
echo "2.1.1. While offline"
|
||||
|
||||
echo "2.1.1.1. Line can be added/removed"
|
||||
setup_2_1
|
||||
agg_disable_chip agg0
|
||||
agg_create_line agg0 line2
|
||||
agg_set_key agg0 line2 "$(sim_get_chip_label chip0 bank1)"
|
||||
agg_set_offset agg0 line2 5
|
||||
agg_enable_chip agg0
|
||||
test "$(agg_get_chip_num_lines agg0)" = "3" || fail "number of lines is not 1"
|
||||
teardown_2_1
|
||||
|
||||
echo "2.1.1.2. Line key can be modified"
|
||||
setup_2_1
|
||||
agg_disable_chip agg0
|
||||
agg_set_key agg0 line0 "$(sim_get_chip_label chip0 bank1)"
|
||||
agg_set_key agg0 line1 "$(sim_get_chip_label chip1 bank1)"
|
||||
agg_enable_chip agg0
|
||||
teardown_2_1
|
||||
|
||||
echo "2.1.1.3. Line name can be modified"
|
||||
setup_2_1
|
||||
agg_disable_chip agg0
|
||||
agg_set_line_name agg0 line0 new0
|
||||
agg_set_line_name agg0 line1 new1
|
||||
agg_enable_chip agg0
|
||||
test "$(agg_get_line_name agg0 0)" = "new0" || fail "line name is unset"
|
||||
test "$(agg_get_line_name agg0 1)" = "new1" || fail "line name is unset"
|
||||
teardown_2_1
|
||||
|
||||
echo "2.1.1.4. Line offset can be modified"
|
||||
setup_2_1
|
||||
agg_disable_chip agg0
|
||||
agg_set_offset agg0 line0 5
|
||||
agg_set_offset agg0 line1 7
|
||||
agg_enable_chip agg0
|
||||
teardown_2_1
|
||||
|
||||
echo "2.1.1.5. Can re-enable a chip after valid reconfiguration"
|
||||
setup_2_1
|
||||
agg_disable_chip agg0
|
||||
agg_set_key agg0 line0 "$(sim_get_chip_label chip1 bank1)"
|
||||
agg_set_offset agg0 line0 15
|
||||
agg_set_key agg0 line1 "$(sim_get_chip_label chip0 bank1)"
|
||||
agg_set_offset agg0 line0 14
|
||||
agg_create_line agg0 line2
|
||||
agg_set_key agg0 line2 "$(sim_get_chip_label chip0 bank1)"
|
||||
agg_set_offset agg0 line2 13
|
||||
agg_enable_chip agg0
|
||||
test "$(agg_get_chip_num_lines agg0)" = "3" || fail "number of lines is not 1"
|
||||
teardown_2_1
|
||||
|
||||
echo "2.1.1.7. Can't re-enable a chip with invalid reconfiguration"
|
||||
setup_2_1
|
||||
agg_disable_chip agg0
|
||||
agg_set_key agg0 line0 invalidkey
|
||||
echo 1 > "$CONFIGFS_AGG_DIR/agg0/live" 2> /dev/null && fail "chip unexpectedly enabled"
|
||||
teardown_2_1
|
||||
setup_2_1
|
||||
agg_disable_chip agg0
|
||||
agg_set_offset agg0 line0 99
|
||||
echo 1 > "$CONFIGFS_AGG_DIR/agg0/live" 2> /dev/null && fail "chip unexpectedly enabled"
|
||||
teardown_2_1
|
||||
|
||||
echo "2.1.2. While online"
|
||||
|
||||
echo "2.1.2.1. Can't add/remove line"
|
||||
setup_2_1
|
||||
mkdir "$CONFIGFS_AGG_DIR/agg0/line2" 2> /dev/null && fail "line unexpectedly added"
|
||||
rmdir "$CONFIGFS_AGG_DIR/agg0/line1" 2> /dev/null && fail "line unexpectedly removed"
|
||||
teardown_2_1
|
||||
|
||||
echo "2.1.2.2. Can't modify line key"
|
||||
setup_2_1
|
||||
echo "chip1_bank1" > "$CONFIGFS_AGG_DIR/agg0/line0/key" 2> /dev/null && \
|
||||
fail "lookup key unexpectedly updated"
|
||||
teardown_2_1
|
||||
|
||||
echo "2.1.2.3. Can't modify line name"
|
||||
setup_2_1
|
||||
echo "new0" > "$CONFIGFS_AGG_DIR/agg0/line0/name" 2> /dev/null && \
|
||||
fail "name unexpectedly updated"
|
||||
teardown_2_1
|
||||
|
||||
echo "2.1.2.4. Can't modify line offset"
|
||||
setup_2_1
|
||||
echo "5" > "$CONFIGFS_AGG_DIR/agg0/line0/offset" 2> /dev/null && \
|
||||
fail "offset unexpectedly updated"
|
||||
teardown_2_1
|
||||
|
||||
echo "2.2. Configuring aggregators instantiated via sysfs"
|
||||
setup_2_2() {
|
||||
echo "chip0_bank0 1 chip1_bank0 3" > "$SYSFS_AGG_DIR/new_device"
|
||||
}
|
||||
teardown_2_2() {
|
||||
echo "$(agg_configfs_dev_name _sysfs.0)" > "$SYSFS_AGG_DIR/delete_device"
|
||||
}
|
||||
|
||||
echo "2.2.1. While online"
|
||||
|
||||
echo "2.2.1.1. Can toggle live"
|
||||
setup_2_2
|
||||
agg_disable_chip _sysfs.0
|
||||
agg_enable_chip _sysfs.0
|
||||
teardown_2_2
|
||||
|
||||
echo "2.2.1.2. Can't add/remove line"
|
||||
setup_2_2
|
||||
mkdir "$CONFIGFS_AGG_DIR/_sysfs.0/line2" 2> /dev/null && fail "line unexpectedly added"
|
||||
rmdir "$CONFIGFS_AGG_DIR/_sysfs.0/line1" 2> /dev/null && fail "line unexpectedly removed"
|
||||
teardown_2_2
|
||||
|
||||
echo "2.2.1.3. Can't modify line key"
|
||||
setup_2_2
|
||||
echo "chip1_bank1" > "$CONFIGFS_AGG_DIR/_sysfs.0/line0/key" 2> /dev/null && \
|
||||
fail "lookup key unexpectedly updated"
|
||||
teardown_2_2
|
||||
|
||||
echo "2.2.1.4. Can't modify line name"
|
||||
setup_2_2
|
||||
echo "new0" > "$CONFIGFS_AGG_DIR/_sysfs.0/line0/name" 2> /dev/null && \
|
||||
fail "name unexpectedly updated"
|
||||
teardown_2_2
|
||||
|
||||
echo "2.2.1.5. Can't modify line offset"
|
||||
setup_2_2
|
||||
echo "5" > "$CONFIGFS_AGG_DIR/_sysfs.0/line0/offset" 2> /dev/null && \
|
||||
fail "offset unexpectedly updated"
|
||||
teardown_2_2
|
||||
|
||||
echo "2.2.2. While waiting for deferred probe"
|
||||
|
||||
echo "2.2.2.1. Can't add/remove line despite live = 0"
|
||||
sim_disable_chip chip0
|
||||
setup_2_2
|
||||
mkdir "$CONFIGFS_AGG_DIR/_sysfs.0/line2" 2> /dev/null && fail "line unexpectedly added"
|
||||
rmdir "$CONFIGFS_AGG_DIR/_sysfs.0/line1" 2> /dev/null && fail "line unexpectedly removed"
|
||||
teardown_2_2
|
||||
sim_enable_chip chip0
|
||||
|
||||
echo "2.2.2.2. Can't modify line key"
|
||||
sim_disable_chip chip0
|
||||
setup_2_2
|
||||
echo "chip1_bank1" > "$CONFIGFS_AGG_DIR/_sysfs.0/line0/key" 2> /dev/null && \
|
||||
fail "lookup key unexpectedly updated"
|
||||
teardown_2_2
|
||||
sim_enable_chip chip0
|
||||
|
||||
echo "2.2.2.3. Can't modify line name"
|
||||
sim_disable_chip chip0
|
||||
setup_2_2
|
||||
echo "new0" > "$CONFIGFS_AGG_DIR/_sysfs.0/line0/name" 2> /dev/null && \
|
||||
fail "name unexpectedly updated"
|
||||
teardown_2_2
|
||||
sim_enable_chip chip0
|
||||
|
||||
echo "2.2.2.4. Can't modify line offset"
|
||||
sim_disable_chip chip0
|
||||
setup_2_2
|
||||
echo 5 > "$CONFIGFS_AGG_DIR/_sysfs.0/line0/offset" 2> /dev/null && \
|
||||
fail "offset unexpectedly updated"
|
||||
teardown_2_2
|
||||
sim_enable_chip chip0
|
||||
|
||||
echo "2.2.2.5. Can't toggle live"
|
||||
sim_disable_chip chip0
|
||||
setup_2_2
|
||||
test "$(cat "$CONFIGFS_AGG_DIR/_sysfs.0/live")" = 0 || fail "chip unexpectedly alive"
|
||||
echo 1 > "$CONFIGFS_AGG_DIR/_sysfs.0/live" 2> /dev/null && fail "chip unexpectedly enabled"
|
||||
teardown_2_2
|
||||
sim_enable_chip chip0
|
||||
|
||||
echo "2.2.3. While offline"
|
||||
|
||||
echo "2.2.3.1. Can't add/remove line despite live = 0"
|
||||
setup_2_2
|
||||
agg_disable_chip _sysfs.0
|
||||
mkdir "$CONFIGFS_AGG_DIR/_sysfs.0/line2" 2> /dev/null && fail "line unexpectedly added"
|
||||
rmdir "$CONFIGFS_AGG_DIR/_sysfs.0/line1" 2> /dev/null && fail "line unexpectedly removed"
|
||||
teardown_2_2
|
||||
|
||||
echo "2.2.3.2. Line key can be modified"
|
||||
setup_2_2
|
||||
agg_disable_chip _sysfs.0
|
||||
agg_set_key _sysfs.0 line0 "$(sim_get_chip_label chip0 bank1)"
|
||||
agg_set_key _sysfs.0 line1 "$(sim_get_chip_label chip1 bank1)"
|
||||
agg_enable_chip _sysfs.0
|
||||
teardown_2_2
|
||||
|
||||
echo "2.2.3.3. Line name can be modified"
|
||||
setup_2_2
|
||||
agg_disable_chip _sysfs.0
|
||||
agg_set_line_name _sysfs.0 line0 new0
|
||||
agg_set_line_name _sysfs.0 line1 new1
|
||||
agg_enable_chip _sysfs.0
|
||||
test "$(agg_get_line_name _sysfs.0 0)" = "new0" || fail "line name is unset"
|
||||
test "$(agg_get_line_name _sysfs.0 1)" = "new1" || fail "line name is unset"
|
||||
teardown_2_2
|
||||
|
||||
echo "2.2.3.4. Line offset can be modified"
|
||||
setup_2_2
|
||||
agg_disable_chip _sysfs.0
|
||||
agg_set_offset _sysfs.0 line0 5
|
||||
agg_set_offset _sysfs.0 line1 7
|
||||
agg_enable_chip _sysfs.0
|
||||
teardown_2_2
|
||||
|
||||
echo "2.2.3.5. Can re-enable a chip with valid reconfiguration"
|
||||
setup_2_2
|
||||
agg_disable_chip _sysfs.0
|
||||
agg_set_key _sysfs.0 line0 "$(sim_get_chip_label chip1 bank1)"
|
||||
agg_set_offset _sysfs.0 line0 15
|
||||
agg_set_key _sysfs.0 line1 "$(sim_get_chip_label chip0 bank1)"
|
||||
agg_set_offset _sysfs.0 line0 14
|
||||
agg_enable_chip _sysfs.0
|
||||
teardown_2_2
|
||||
|
||||
echo "2.2.3.6. Can't re-enable a chip with invalid reconfiguration"
|
||||
setup_2_2
|
||||
agg_disable_chip _sysfs.0
|
||||
agg_set_key _sysfs.0 line0 invalidkey
|
||||
echo 1 > "$CONFIGFS_AGG_DIR/_sysfs.0/live" 2> /dev/null && fail "chip unexpectedly enabled"
|
||||
teardown_2_2
|
||||
setup_2_2
|
||||
agg_disable_chip _sysfs.0
|
||||
agg_set_offset _sysfs.0 line0 99
|
||||
echo 1 > "$CONFIGFS_AGG_DIR/_sysfs.0/live" 2> /dev/null && fail "chip unexpectedly enabled"
|
||||
teardown_2_2
|
||||
|
||||
echo "3. Module unload"
|
||||
|
||||
echo "3.1. Can't unload module if there is at least one device created via configfs"
|
||||
agg_create_chip agg0
|
||||
modprobe -r gpio-aggregator 2> /dev/null
|
||||
test -d /sys/module/gpio_aggregator || fail "module unexpectedly unloaded"
|
||||
agg_remove_chip agg0
|
||||
|
||||
echo "3.2. Can unload module if there is no device created via configfs"
|
||||
echo "chip0_bank0 1 chip1_bank0 3" > "$SYSFS_AGG_DIR/new_device"
|
||||
modprobe -r gpio-aggregator 2> /dev/null
|
||||
test -d /sys/module/gpio_aggregator && fail "module unexpectedly remains to be loaded"
|
||||
modprobe gpio-aggregator 2> /dev/null
|
||||
|
||||
echo "4. GPIO forwarder functional"
|
||||
SETTINGS="chip0:bank0:2 chip0:bank1:4 chip1:bank0:6 chip1:bank1:8"
|
||||
setup_4() {
|
||||
local OFFSET=0
|
||||
agg_create_chip agg0
|
||||
for SETTING in $SETTINGS; do
|
||||
CHIP=$(echo "$SETTING" | cut -d: -f1)
|
||||
BANK=$(echo "$SETTING" | cut -d: -f2)
|
||||
LINE=$(echo "$SETTING" | cut -d: -f3)
|
||||
agg_create_line agg0 "line${OFFSET}"
|
||||
agg_set_key agg0 "line${OFFSET}" "$(sim_get_chip_label "$CHIP" "$BANK")"
|
||||
agg_set_offset agg0 "line${OFFSET}" "$LINE"
|
||||
OFFSET=$(expr $OFFSET + 1)
|
||||
done
|
||||
agg_enable_chip agg0
|
||||
}
|
||||
teardown_4() {
|
||||
agg_configfs_cleanup
|
||||
}
|
||||
|
||||
echo "4.1. Forwarding set values"
|
||||
setup_4
|
||||
OFFSET=0
|
||||
for SETTING in $SETTINGS; do
|
||||
CHIP=$(echo "$SETTING" | cut -d: -f1)
|
||||
BANK=$(echo "$SETTING" | cut -d: -f2)
|
||||
LINE=$(echo "$SETTING" | cut -d: -f3)
|
||||
DEVNAME=$(cat "$CONFIGFS_SIM_DIR/$CHIP/dev_name")
|
||||
CHIPNAME=$(cat "$CONFIGFS_SIM_DIR/$CHIP/$BANK/chip_name")
|
||||
VAL_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio${LINE}/value"
|
||||
test $(cat $VAL_PATH) = "0" || fail "incorrect value read from sysfs"
|
||||
$BASE_DIR/gpio-mockup-cdev -s 1 "/dev/$(agg_configfs_chip_name agg0)" "$OFFSET" &
|
||||
mock_pid=$!
|
||||
sleep 0.1 # FIXME Any better way?
|
||||
test "$(cat $VAL_PATH)" = "1" || fail "incorrect value read from sysfs"
|
||||
kill "$mock_pid"
|
||||
OFFSET=$(expr $OFFSET + 1)
|
||||
done
|
||||
teardown_4
|
||||
|
||||
echo "4.2. Forwarding set config"
|
||||
setup_4
|
||||
OFFSET=0
|
||||
for SETTING in $SETTINGS; do
|
||||
CHIP=$(echo "$SETTING" | cut -d: -f1)
|
||||
BANK=$(echo "$SETTING" | cut -d: -f2)
|
||||
LINE=$(echo "$SETTING" | cut -d: -f3)
|
||||
DEVNAME=$(cat "$CONFIGFS_SIM_DIR/$CHIP/dev_name")
|
||||
CHIPNAME=$(cat "$CONFIGFS_SIM_DIR/$CHIP/$BANK/chip_name")
|
||||
VAL_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio${LINE}/value"
|
||||
$BASE_DIR/gpio-mockup-cdev -b pull-up "/dev/$(agg_configfs_chip_name agg0)" "$OFFSET"
|
||||
test $(cat "$VAL_PATH") = "1" || fail "incorrect value read from sysfs"
|
||||
OFFSET=$(expr $OFFSET + 1)
|
||||
done
|
||||
teardown_4
|
||||
|
||||
echo "5. Race condition verification"
|
||||
|
||||
echo "5.1. Stress test of new_device/delete_device and module load/unload"
|
||||
for _ in $(seq 1000); do
|
||||
{
|
||||
echo "dummy 0" > "$SYSFS_AGG_DIR/new_device"
|
||||
cat "$CONFIGFS_AGG_DIR/_sysfs.0/dev_name" > "$SYSFS_AGG_DIR/delete_device"
|
||||
} 2> /dev/null
|
||||
done &
|
||||
writer_pid=$!
|
||||
while kill -0 "$writer_pid" 2> /dev/null; do
|
||||
{
|
||||
modprobe gpio-aggregator
|
||||
modprobe -r gpio-aggregator
|
||||
} 2> /dev/null
|
||||
done
|
||||
|
||||
echo "GPIO $MODULE test PASS"
|
||||
Loading…
Reference in New Issue
Block a user