From patchwork Tue Jan 19 12:30:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kent Gibson X-Patchwork-Id: 12030305 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C51ECC433DB for ; Tue, 19 Jan 2021 18:27:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9021223103 for ; Tue, 19 Jan 2021 18:27:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403783AbhASOvH (ORCPT ); Tue, 19 Jan 2021 09:51:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55476 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2393050AbhASMcG (ORCPT ); Tue, 19 Jan 2021 07:32:06 -0500 Received: from mail-pf1-x42e.google.com (mail-pf1-x42e.google.com [IPv6:2607:f8b0:4864:20::42e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C129CC061574; Tue, 19 Jan 2021 04:31:25 -0800 (PST) Received: by mail-pf1-x42e.google.com with SMTP id o20so3738376pfu.0; Tue, 19 Jan 2021 04:31:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=4IWaFMUdPKIWxoafPQ6eL/161AFysSuRmhdJ6Woludk=; b=qNCHDZhBo8nI1TIvEBMJW+0gq7NBneboag+mcyEl7d1rao5t+BIbcIIx1QScirfldt sH10xChB3zUpv0zVIWEQiuceI7txqd1isFjmwVFMg8eTMOZp5NX9BQgF4ENOeRzXQsl6 6qckjD/1+OHnQ0/IBspINauc2Gl5niFtAqcbDmxIvZsEAUxsmUSUuKm0oCf5a2KNW5M6 WvZQRT/nvBvTJ0ru7Y8iCXQQ/ntZVgxcXzEps8mu1c+/u3hCEq1+dgwrjKP/2gSu6CED ezVx6duSxmshwHPvMusmFmp/sWljeRDNUm4YQsk4MD5fiKPR26qJZmob/GObM6jdZo4D u/rQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=4IWaFMUdPKIWxoafPQ6eL/161AFysSuRmhdJ6Woludk=; b=L10VEiHrfSEedrAAKYk120c2TlR5Yy/zLeLxYKW1toUdWEGEyI2s7SFAiCw1KIvJI8 viAj4WFOoKIDTXQkEOjd5ToKMQ2MtZYhQ1cIWK3kylwEKEbwJL4WcGpPf6+epx8B5alp KOS1QL3zM1J0okQCBhDiJss6VzjmBtRuTg53JHkDg5h3gBmCZr2Vq1cJKzoj6PBJBbrw mMVVyewBWkri4gIWhVDlpMe537SpFpVQ/GjgItOnoqnL3ym+XaF6AB/xrQYG2uj4sfJR ucTkptDaOu9HI3N9iIDIZiLRQkq5+lKe5Elu+FMbTeEKwpWtcH9mYle1XvlQ58qViXWH 00ag== X-Gm-Message-State: AOAM5333gk3VuBEBQ3PogH2l/iJM82A8ReaYI+RHR8QGd5zdPWLxfYmO aHqZGD6MCcBMoVEK1OnktVwFCGM6JFs= X-Google-Smtp-Source: ABdhPJx6o8x+SYlOoKQhJnA0D9DTcDYOUq23j6zuPzFa1dAL5lZQAKs8gi7AKLaBAUxrKU3e0yZbgQ== X-Received: by 2002:a63:d04a:: with SMTP id s10mr4250216pgi.32.1611059484340; Tue, 19 Jan 2021 04:31:24 -0800 (PST) Received: from sol.lan (106-69-181-154.dyn.iinet.net.au. [106.69.181.154]) by smtp.gmail.com with ESMTPSA id q4sm19283052pgr.39.2021.01.19.04.31.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Jan 2021 04:31:23 -0800 (PST) From: Kent Gibson To: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kselftest@vger.kernel.org, bgolaszewski@baylibre.com, linus.walleij@linaro.org, shuah@kernel.org, bamv2005@gmail.com Cc: Kent Gibson Subject: [PATCH v3 1/7] selftests: gpio: rework and simplify test implementation Date: Tue, 19 Jan 2021 20:30:53 +0800 Message-Id: <20210119123059.102004-2-warthog618@gmail.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210119123059.102004-1-warthog618@gmail.com> References: <20210119123059.102004-1-warthog618@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org The GPIO mockup selftests are overly complicated with separate implementations of the tests for sysfs and cdev uAPI, and with the cdev implementation being dependent on tools/gpio and libmount. Rework the test implementation to provide a common test suite with a simplified pluggable uAPI interface. The cdev implementation utilises the GPIO uAPI directly to remove the dependence on tools/gpio. The simplified uAPI interface removes the need for any file system mount checks in C, and so removes the dependence on libmount. The rework also fixes the sysfs test implementation which has been broken since the device created in the multiple gpiochip case was split into separate devices. Fixes: 8a39f597bcfd ("gpio: mockup: rework device probing") Signed-off-by: Kent Gibson Acked-by: Linus Walleij Reviewed-by: Bartosz Golaszewski --- tools/testing/selftests/gpio/Makefile | 26 +- .../testing/selftests/gpio/gpio-mockup-cdev.c | 139 +++++ .../selftests/gpio/gpio-mockup-sysfs.sh | 168 ++---- tools/testing/selftests/gpio/gpio-mockup.sh | 490 ++++++++++++------ 4 files changed, 535 insertions(+), 288 deletions(-) create mode 100644 tools/testing/selftests/gpio/gpio-mockup-cdev.c diff --git a/tools/testing/selftests/gpio/Makefile b/tools/testing/selftests/gpio/Makefile index 41582fe485ee..39f2bbe8dd3d 100644 --- a/tools/testing/selftests/gpio/Makefile +++ b/tools/testing/selftests/gpio/Makefile @@ -1,31 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 -VAR_CFLAGS := $(shell pkg-config --cflags mount 2>/dev/null) -VAR_LDLIBS := $(shell pkg-config --libs mount 2>/dev/null) -ifeq ($(VAR_LDLIBS),) -VAR_LDLIBS := -lmount -I/usr/include/libmount -endif - -CFLAGS += -O2 -g -std=gnu99 -Wall -I../../../../usr/include/ $(VAR_CFLAGS) -LDLIBS += $(VAR_LDLIBS) - TEST_PROGS := gpio-mockup.sh TEST_FILES := gpio-mockup-sysfs.sh -TEST_GEN_PROGS_EXTENDED := gpio-mockup-chardev +TEST_GEN_PROGS_EXTENDED := gpio-mockup-cdev -KSFT_KHDR_INSTALL := 1 include ../lib.mk - -GPIODIR := $(realpath ../../../gpio) -GPIOOUT := $(OUTPUT)/tools-gpio/ -GPIOOBJ := $(GPIOOUT)/gpio-utils.o - -CLEAN += ; $(RM) -rf $(GPIOOUT) - -$(TEST_GEN_PROGS_EXTENDED): $(GPIOOBJ) - -$(GPIOOUT): - mkdir -p $@ - -$(GPIOOBJ): $(GPIOOUT) - $(MAKE) OUTPUT=$(GPIOOUT) -C $(GPIODIR) diff --git a/tools/testing/selftests/gpio/gpio-mockup-cdev.c b/tools/testing/selftests/gpio/gpio-mockup-cdev.c new file mode 100644 index 000000000000..3a7fc3ac1349 --- /dev/null +++ b/tools/testing/selftests/gpio/gpio-mockup-cdev.c @@ -0,0 +1,139 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * GPIO mockup cdev test helper + * + * Copyright (C) 2020 Kent Gibson + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define CONSUMER "gpio-mockup-cdev" + +static int request_line_v1(int cfd, unsigned int offset, + uint32_t flags, unsigned int val) +{ + struct gpiohandle_request req; + int ret; + + memset(&req, 0, sizeof(req)); + req.lines = 1; + req.lineoffsets[0] = offset; + req.flags = flags; + strcpy(req.consumer_label, CONSUMER); + if (flags & GPIOHANDLE_REQUEST_OUTPUT) + req.default_values[0] = val; + + ret = ioctl(cfd, GPIO_GET_LINEHANDLE_IOCTL, &req); + if (ret == -1) + return -errno; + return req.fd; +} + +static int get_value_v1(int lfd) +{ + struct gpiohandle_data vals; + int ret; + + memset(&vals, 0, sizeof(vals)); + ret = ioctl(lfd, GPIOHANDLE_GET_LINE_VALUES_IOCTL, &vals); + if (ret == -1) + return -errno; + return vals.values[0]; +} + +static void usage(char *prog) +{ + printf("Usage: %s [-l] [-b ] [-s ] [-u ] \n", prog); + printf(" -b: set line bias to one of pull-down, pull-up, disabled\n"); + printf(" (default is to leave bias unchanged):\n"); + printf(" -l: set line active low (default is active high)\n"); + printf(" -s: set line value (default is to get line value)\n"); + exit(-1); +} + +static int wait_signal(void) +{ + int sig; + sigset_t wset; + + sigemptyset(&wset); + sigaddset(&wset, SIGHUP); + sigaddset(&wset, SIGINT); + sigaddset(&wset, SIGTERM); + sigwait(&wset, &sig); + + return sig; +} + +int main(int argc, char *argv[]) +{ + char *chip; + int opt, ret, cfd, lfd; + unsigned int offset, val; + uint32_t flags_v1; + + ret = 0; + flags_v1 = GPIOHANDLE_REQUEST_INPUT; + + while ((opt = getopt(argc, argv, "lb:s:u:")) != -1) { + switch (opt) { + case 'l': + flags_v1 |= GPIOHANDLE_REQUEST_ACTIVE_LOW; + break; + case 'b': + if (strcmp("pull-up", optarg) == 0) + flags_v1 |= GPIOHANDLE_REQUEST_BIAS_PULL_UP; + else if (strcmp("pull-down", optarg) == 0) + flags_v1 |= GPIOHANDLE_REQUEST_BIAS_PULL_DOWN; + else if (strcmp("disabled", optarg) == 0) + flags_v1 |= GPIOHANDLE_REQUEST_BIAS_DISABLE; + break; + case 's': + val = atoi(optarg); + flags_v1 &= ~GPIOHANDLE_REQUEST_INPUT; + flags_v1 |= GPIOHANDLE_REQUEST_OUTPUT; + break; + default: + usage(argv[0]); + } + } + + if (argc < optind + 2) + usage(argv[0]); + + chip = argv[optind]; + offset = atoi(argv[optind + 1]); + + cfd = open(chip, 0); + if (cfd == -1) { + fprintf(stderr, "Failed to open %s: %s\n", chip, strerror(errno)); + return -errno; + } + + lfd = request_line_v1(cfd, offset, flags_v1, val); + + close(cfd); + + if (lfd < 0) { + fprintf(stderr, "Failed to request %s:%d: %s\n", chip, offset, strerror(-lfd)); + return lfd; + } + + if (flags_v1 & GPIOHANDLE_REQUEST_OUTPUT) + wait_signal(); + else + ret = get_value_v1(lfd); + + close(lfd); + + return ret; +} diff --git a/tools/testing/selftests/gpio/gpio-mockup-sysfs.sh b/tools/testing/selftests/gpio/gpio-mockup-sysfs.sh index dd269d877562..2d2e5d8763b6 100755 --- a/tools/testing/selftests/gpio/gpio-mockup-sysfs.sh +++ b/tools/testing/selftests/gpio/gpio-mockup-sysfs.sh @@ -1,135 +1,77 @@ # SPDX-License-Identifier: GPL-2.0 -is_consistent() -{ - val= - - active_low_sysfs=`cat $GPIO_SYSFS/gpio$nr/active_low` - val_sysfs=`cat $GPIO_SYSFS/gpio$nr/value` - dir_sysfs=`cat $GPIO_SYSFS/gpio$nr/direction` - gpio_this_debugfs=`cat $GPIO_DEBUGFS |grep "gpio-$nr" | sed "s/(.*)//g"` - dir_debugfs=`echo $gpio_this_debugfs | awk '{print $2}'` - val_debugfs=`echo $gpio_this_debugfs | awk '{print $3}'` - if [ $val_debugfs = "lo" ]; then - val=0 - elif [ $val_debugfs = "hi" ]; then - val=1 - fi +# Overrides functions in gpio-mockup.sh to test using the GPIO SYSFS uAPI - if [ $active_low_sysfs = "1" ]; then - if [ $val = "0" ]; then - val="1" - else - val="0" - fi - fi +SYSFS=`grep -w sysfs /proc/mounts | cut -f2 -d' '` +[ -d "$SYSFS" ] || skip "sysfs is not mounted" - if [ $val_sysfs = $val ] && [ $dir_sysfs = $dir_debugfs ]; then - echo -n "." - else - echo "test fail, exit" - die - fi -} +GPIO_SYSFS="${SYSFS}/class/gpio" +[ -d "$GPIO_SYSFS" ] || skip "CONFIG_GPIO_SYSFS is not selected" -test_pin_logic() -{ - nr=$1 - direction=$2 - active_low=$3 - value=$4 +PLATFORM_SYSFS=$SYSFS/devices/platform - echo $direction > $GPIO_SYSFS/gpio$nr/direction - echo $active_low > $GPIO_SYSFS/gpio$nr/active_low - if [ $direction = "out" ]; then - echo $value > $GPIO_SYSFS/gpio$nr/value - fi - is_consistent $nr -} +sysfs_nr= +sysfs_ldir= -test_one_pin() +# determine the sysfs GPIO number given the $chip and $offset +# e.g. gpiochip1:32 +find_sysfs_nr() { - nr=$1 - - echo -n "test pin<$nr>" - - echo $nr > $GPIO_SYSFS/export 2>/dev/null - - if [ X$? != X0 ]; then - echo "test GPIO pin $nr failed" - die - fi - - #"Checking if the sysfs is consistent with debugfs: " - is_consistent $nr - - #"Checking the logic of active_low: " - test_pin_logic $nr out 1 1 - test_pin_logic $nr out 1 0 - test_pin_logic $nr out 0 1 - test_pin_logic $nr out 0 0 - - #"Checking the logic of direction: " - test_pin_logic $nr in 1 1 - test_pin_logic $nr out 1 0 - test_pin_logic $nr low 0 1 - test_pin_logic $nr high 0 0 - - echo $nr > $GPIO_SYSFS/unexport - - echo "successful" + # e.g. /sys/devices/platform/gpio-mockup.1/gpiochip1 + local platform=$(find $PLATFORM_SYSFS -mindepth 2 -maxdepth 2 -type d -name $chip) + [ "$platform" ] || fail "can't find platform of $chip" + # e.g. /sys/devices/platform/gpio-mockup.1/gpio/gpiochip508/base + local base=$(find ${platform%/*}/gpio/ -mindepth 2 -maxdepth 2 -type f -name base) + [ "$base" ] || fail "can't find base of $chip" + sysfs_nr=$(($(< "$base") + $offset)) + sysfs_ldir="$GPIO_SYSFS/gpio$sysfs_nr" } -test_one_pin_fail() +acquire_line() { - nr=$1 - - echo $nr > $GPIO_SYSFS/export 2>/dev/null - - if [ X$? != X0 ]; then - echo "test invalid pin $nr successful" - else - echo "test invalid pin $nr failed" - echo $nr > $GPIO_SYSFS/unexport 2>/dev/null - die - fi + [ "$sysfs_nr" ] && return + find_sysfs_nr + echo "$sysfs_nr" > "$GPIO_SYSFS/export" } -list_chip() +# The helpers being overridden... +get_line() { - echo `ls -d $GPIO_DRV_SYSFS/gpiochip* 2>/dev/null` + [ -e "$sysfs_ldir/value" ] && echo $(< "$sysfs_ldir/value") } -test_chip() +set_line() { - chip=$1 - name=`basename $chip` - base=`cat $chip/base` - ngpio=`cat $chip/ngpio` - printf "%-10s %-5s %-5s\n" $name $base $ngpio - if [ $ngpio = "0" ]; then - echo "number of gpio is zero is not allowed". - fi - test_one_pin $base - test_one_pin $(($base + $ngpio - 1)) - test_one_pin $((( RANDOM % $ngpio ) + $base )) + acquire_line + + for option in $*; do + case $option in + active-high) + echo 0 > "$sysfs_ldir/active_low" + ;; + active-low) + echo 1 > "$sysfs_ldir/active_low" + ;; + input) + echo "in" > "$sysfs_ldir/direction" + ;; + 0) + echo "out" > "$sysfs_ldir/direction" + echo 0 > "$sysfs_ldir/value" + ;; + 1) + echo "out" > "$sysfs_ldir/direction" + echo 1 > "$sysfs_ldir/value" + ;; + esac + done } -test_chips_sysfs() +release_line() { - gpiochip=`list_chip $module` - if [ X"$gpiochip" = X ]; then - if [ X"$valid" = Xfalse ]; then - echo "successful" - else - echo "fail" - die - fi - else - for chip in $gpiochip; do - test_chip $chip - done - fi + [ "$sysfs_nr" ] || return 0 + echo "$sysfs_nr" > "$GPIO_SYSFS/unexport" + sysfs_nr= + sysfs_ldir= } - diff --git a/tools/testing/selftests/gpio/gpio-mockup.sh b/tools/testing/selftests/gpio/gpio-mockup.sh index 7f35b9880485..0aa8e4294de1 100755 --- a/tools/testing/selftests/gpio/gpio-mockup.sh +++ b/tools/testing/selftests/gpio/gpio-mockup.sh @@ -1,72 +1,55 @@ -#!/bin/bash +#!/bin/bash -efu # SPDX-License-Identifier: GPL-2.0 #exit status -#1: Internal error -#2: sysfs/debugfs not mount -#3: insert module fail when gpio-mockup is a module. -#4: Skip test including run as non-root user. -#5: other reason. - -SYSFS= -GPIO_SYSFS= -GPIO_DRV_SYSFS= +#0: success +#1: fail +#4: skip test - including run as non-root user + +BASE=${0%/*} DEBUGFS= GPIO_DEBUGFS= -dev_type= -module= +dev_type="cdev" +module="gpio-mockup" +verbose= +full_test= +random= +active_opt= +bias_opt= +line_set_pid= -# Kselftest framework requirement - SKIP code is 4. +# Kselftest return codes +ksft_fail=1 ksft_skip=4 usage() { echo "Usage:" - echo "$0 [-f] [-m name] [-t type]" - echo "-f: full test. It maybe conflict with existence gpio device." - echo "-m: module name, default name is gpio-mockup. It could also test" - echo " other gpio device." - echo "-t: interface type: chardev(char device) and sysfs(being" - echo " deprecated). The first one is default" - echo "" - echo "$0 -h" - echo "This usage" + echo "$0 [-frv] [-t type]" + echo "-f: full test (minimal set run by default)" + echo "-r: test random lines as well as fence posts" + echo "-t: interface type:" + echo " cdev (character device ABI) - default" + echo " sysfs (deprecated SYSFS ABI)" + echo "-v: verbose progress reporting" + exit $ksft_fail } -prerequisite() +skip() { - msg="skip all tests:" - if [ $UID != 0 ]; then - echo $msg must be run as root >&2 - exit $ksft_skip - fi - SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'` - if [ ! -d "$SYSFS" ]; then - echo $msg sysfs is not mounted >&2 - exit 2 - fi - GPIO_SYSFS=`echo $SYSFS/class/gpio` - GPIO_DRV_SYSFS=`echo $SYSFS/devices/platform/$module/gpio` - DEBUGFS=`mount -t debugfs | head -1 | awk '{ print $3 }'` - if [ ! -d "$DEBUGFS" ]; then - echo $msg debugfs is not mounted >&2 - exit 2 - fi - GPIO_DEBUGFS=`echo $DEBUGFS/gpio` - source gpio-mockup-sysfs.sh + echo "$*" >&2 + echo "GPIO $module test SKIP" + exit $ksft_skip } -try_insert_module() +prerequisite() { - if [ -d "$GPIO_DRV_SYSFS" ]; then - echo "$GPIO_DRV_SYSFS exist. Skip insert module" - else - modprobe -q $module $1 - if [ X$? != X0 ]; then - echo $msg insmod $module failed >&2 - exit 3 - fi - fi + [ $(id -u) -eq 0 ] || skip "must be run as root" + + DEBUGFS=$(grep -w debugfs /proc/mounts | cut -f2 -d' ') + [ -d "$DEBUGFS" ] || skip "debugfs is not mounted" + + GPIO_DEBUGFS=$DEBUGFS/$module } remove_module() @@ -74,133 +57,340 @@ remove_module() modprobe -r -q $module } -die() +cleanup() { + set +e + release_line remove_module - exit 5 + jobs -p | xargs -r kill > /dev/null 2>&1 } -test_chips() +fail() { - if [ X$dev_type = Xsysfs ]; then - echo "WARNING: sysfs ABI of gpio is going to deprecated." - test_chips_sysfs $* - else - $BASE/gpio-mockup-chardev $* - fi + echo "test failed: $*" >&2 + echo "GPIO $module test FAIL" + exit $ksft_fail +} + +try_insert_module() +{ + modprobe -q $module "$1" || fail "insert $module failed with error $?" +} + +log() +{ + [ -z "$verbose" ] || echo "$*" } -gpio_test() +# The following line helpers, release_Line, get_line and set_line, all +# make use of the global $chip and $offset variables. +# +# This implementation drives the GPIO character device (cdev) uAPI. +# Other implementations may override these to test different uAPIs. + +# Release any resources related to the line +release_line() { - param=$1 - valid=$2 + [ "$line_set_pid" ] && kill $line_set_pid && wait $line_set_pid || true + line_set_pid= +} - if [ X"$param" = X ]; then - die +# Read the current value of the line +get_line() +{ + release_line + + $BASE/gpio-mockup-cdev $active_opt /dev/$chip $offset + echo $? +} + +# Set the state of the line +# +# Changes to line configuration are provided as parameters. +# The line is assumed to be an output if the line value 0 or 1 is +# specified, else an input. +set_line() +{ + local val= + + release_line + + # parse config options... + for option in $*; do + case $option in + active-low) + active_opt="-l " + ;; + active-high) + active_opt= + ;; + bias-none) + bias_opt= + ;; + pull-down) + bias_opt="-bpull-down " + ;; + pull-up) + bias_opt="-bpull-up " + ;; + 0) + val=0 + ;; + 1) + val=1 + ;; + esac + done + + local cdev_opts=${active_opt} + if [ "$val" ]; then + $BASE/gpio-mockup-cdev $cdev_opts -s$val /dev/$chip $offset & + # failure to set is detected by reading mockup and toggling values + line_set_pid=$! + # allow for gpio-mockup-cdev to launch and request line + # (there is limited value in checking if line has been requested) + sleep 0.01 + elif [ "$bias_opt" ]; then + cdev_opts=${cdev_opts}${bias_opt} + $BASE/gpio-mockup-cdev $cdev_opts /dev/$chip $offset || true fi - try_insert_module "gpio_mockup_ranges=$param" - echo -n "GPIO $module test with ranges: <" - echo "$param>: " - printf "%-10s %s\n" $param - test_chips $module $valid - remove_module } -BASE=`dirname $0` +assert_line() +{ + local val + # don't need any retry here as set_mock allows for propagation + val=$(get_line) + [ "$val" = "$1" ] || fail "line value is ${val:-empty} when $1 was expected" +} + +# The following mockup helpers all make use of the $mock_line +assert_mock() +{ + local backoff_wait=10 + local retry=0 + local val + # retry allows for set propagation from uAPI to mockup + while true; do + val=$(< $mock_line) + [ "$val" = "$1" ] && break + retry=$((retry + 1)) + [ $retry -lt 5 ] || fail "mockup $mock_line value ${val:-empty} when $1 expected" + sleep $(printf "%0.2f" $((backoff_wait))e-3) + backoff_wait=$((backoff_wait * 2)) + done +} + +set_mock() +{ + echo "$1" > $mock_line + # allow for set propagation - so we won't be in a race with set_line + assert_mock "$1" +} -dev_type= -TEMP=`getopt -o fhm:t: -n '$0' -- "$@"` +# test the functionality of a line +# +# The line is set from the mockup side and is read from the userspace side +# (input), and is set from the userspace side and is read from the mockup side +# (output). +# +# Setting the mockup pull using the userspace interface bias settings is +# tested where supported by the userspace interface (cdev). +test_line() +{ + chip=$1 + offset=$2 + log "test_line $chip $offset" + mock_line=$GPIO_DEBUGFS/$chip/$offset + [ -e "$mock_line" ] || fail "missing line $chip:$offset" -if [ "$?" != "0" ]; then - echo "Parameter process failed, Terminating..." >&2 - exit 1 -fi + # test input active-high + set_mock 1 + set_line input active-high + assert_line 1 + set_mock 0 + assert_line 0 + set_mock 1 + assert_line 1 + + if [ "$full_test" ]; then + if [ "$dev_type" != "sysfs" ]; then + # test pulls + set_mock 0 + set_line input pull-up + assert_line 1 + set_mock 0 + assert_line 0 + + set_mock 1 + set_line input pull-down + assert_line 0 + set_mock 1 + assert_line 1 + + set_line bias-none + fi + + # test input active-low + set_mock 0 + set_line active-low + assert_line 1 + set_mock 1 + assert_line 0 + set_mock 0 + assert_line 1 + + # test output active-high + set_mock 1 + set_line active-high 0 + assert_mock 0 + set_line 1 + assert_mock 1 + set_line 0 + assert_mock 0 + fi + + # test output active-low + set_mock 0 + set_line active-low 0 + assert_mock 1 + set_line 1 + assert_mock 0 + set_line 0 + assert_mock 1 + + release_line +} + +test_no_line() +{ + log test_no_line "$*" + [ ! -e "$GPIO_DEBUGFS/$1/$2" ] || fail "unexpected line $1:$2" +} -# Note the quotes around `$TEMP': they are essential! -eval set -- "$TEMP" +# Load the module and check that the expected number of gpiochips, with the +# expected number of lines, are created and are functional. +# +# $1 is the gpio_mockup_ranges parameter for the module +# The remaining parameters are the number of lines, n, expected for each of +# the gpiochips expected to be created. +# +# For each gpiochip the fence post lines, 0 and n-1, are tested, and the +# line on the far side of the fence post, n, is tested to not exist. +# +# If the $random flag is set then a random line in the middle of the +# gpiochip is tested as well. +insmod_test() +{ + local ranges= + local gc= + local width= -while true; do - case $1 in - -f) + [ "${1:-}" ] || fail "missing ranges" + ranges=$1 ; shift + try_insert_module "gpio_mockup_ranges=$ranges" + log "GPIO $module test with ranges: <$ranges>:" + # e.g. /sys/kernel/debug/gpio-mockup/gpiochip1 + gpiochip=$(find "$DEBUGFS/$module/" -name gpiochip* -type d | sort) + for chip in $gpiochip; do + gc=${chip##*/} + [ "${1:-}" ] || fail "unexpected chip - $gc" + width=$1 ; shift + test_line $gc 0 + if [ "$random" -a $width -gt 2 ]; then + test_line $gc $((RANDOM % ($width - 2) + 1)) + fi + test_line $gc $(($width - 1)) + test_no_line $gc $width + done + [ "${1:-}" ] && fail "missing expected chip of width $1" + remove_module || fail "failed to remove module with error $?" +} + +while getopts ":frvt:" opt; do + case $opt in + f) full_test=true - shift - ;; - -h) - usage - exit ;; - -m) - module=$2 - shift 2 + r) + random=true ;; - -t) - dev_type=$2 - shift 2 + t) + dev_type=$OPTARG ;; - --) - shift - break + v) + verbose=true ;; *) - echo "Internal error!" - exit 1 + usage ;; esac done +shift $((OPTIND - 1)) -if [ X"$module" = X ]; then - module="gpio-mockup" -fi - -if [ X$dev_type != Xsysfs ]; then - dev_type="chardev" -fi +[ "${1:-}" ] && fail "unknown argument '$1'" prerequisite -echo "1. Test dynamic allocation of gpio successful means insert gpiochip and" -echo " manipulate gpio pin successful" -gpio_test "-1,32" true -gpio_test "-1,32,-1,32" true -gpio_test "-1,32,-1,32,-1,32" true -if [ X$full_test = Xtrue ]; then - gpio_test "-1,32,32,64" true - gpio_test "-1,32,40,64,-1,5" true - gpio_test "-1,32,32,64,-1,32" true - gpio_test "0,32,32,64,-1,32,-1,32" true - gpio_test "-1,32,-1,32,0,32,32,64" true - echo "2. Do basic test: successful means insert gpiochip and" - echo " manipulate gpio pin successful" - gpio_test "0,32" true - gpio_test "0,32,32,64" true - gpio_test "0,32,40,64,64,96" true +trap 'exit $ksft_fail' SIGTERM SIGINT +trap cleanup EXIT + +case "$dev_type" in +sysfs) + source $BASE/gpio-mockup-sysfs.sh + echo "WARNING: gpio sysfs ABI is deprecated." + ;; +cdev) + ;; +*) + fail "unknown interface type: $dev_type" + ;; +esac + +remove_module || fail "can't remove existing $module module" + +# manual gpio allocation tests fail if a physical chip already exists +[ "$full_test" -a -e "/dev/gpiochip0" ] && skip "full tests conflict with gpiochip0" + +echo "1. Module load tests" +echo "1.1. dynamic allocation of gpio" +insmod_test "-1,32" 32 +insmod_test "-1,23,-1,32" 23 32 +insmod_test "-1,23,-1,26,-1,32" 23 26 32 +if [ "$full_test" ]; then + echo "1.2. manual allocation of gpio" + insmod_test "0,32" 32 + insmod_test "0,32,32,60" 32 28 + insmod_test "0,32,40,64,64,96" 32 24 32 + echo "1.3. dynamic and manual allocation of gpio" + insmod_test "-1,32,32,62" 32 30 + insmod_test "-1,22,-1,23,0,24,32,64" 22 23 24 32 + insmod_test "-1,32,32,60,-1,29" 32 28 29 + insmod_test "-1,32,40,64,-1,5" 32 24 5 + insmod_test "0,32,32,44,-1,22,-1,31" 32 12 22 31 fi -echo "3. Error test: successful means insert gpiochip failed" -echo "3.1 Test number of gpio overflow" -#Currently: The max number of gpio(1024) is defined in arm architecture. -gpio_test "-1,32,-1,1024" false -if [ X$full_test = Xtrue ]; then - echo "3.2 Test zero line of gpio" - gpio_test "0,0" false - echo "3.3 Test range overlap" - echo "3.3.1 Test corner case" - gpio_test "0,32,0,1" false - gpio_test "0,32,32,64,32,40" false - gpio_test "0,32,35,64,35,45" false - gpio_test "0,32,31,32" false - gpio_test "0,32,32,64,36,37" false - gpio_test "0,32,35,64,34,36" false - echo "3.3.2 Test inserting invalid second gpiochip" - gpio_test "0,32,30,35" false - gpio_test "0,32,1,5" false - gpio_test "10,32,9,14" false - gpio_test "10,32,30,35" false - echo "3.3.3 Test others" - gpio_test "0,32,40,56,39,45" false - gpio_test "0,32,40,56,30,33" false - gpio_test "0,32,40,56,30,41" false - gpio_test "0,32,40,56,20,21" false +echo "2. Module load error tests" +echo "2.1 gpio overflow" +# Currently: The max number of gpio(1024) is defined in arm architecture. +insmod_test "-1,1024" +if [ "$full_test" ]; then + echo "2.2 no lines defined" + insmod_test "0,0" + echo "2.3 ignore range overlap" + insmod_test "0,32,0,1" 32 + insmod_test "0,32,1,5" 32 + insmod_test "0,32,30,35" 32 + insmod_test "0,32,31,32" 32 + insmod_test "10,32,30,35" 22 + insmod_test "10,32,9,14" 22 + insmod_test "0,32,20,21,40,56" 32 16 + insmod_test "0,32,32,64,32,40" 32 32 + insmod_test "0,32,32,64,36,37" 32 32 + insmod_test "0,32,35,64,34,36" 32 29 + insmod_test "0,30,35,64,35,45" 30 29 + insmod_test "0,32,40,56,30,33" 32 16 + insmod_test "0,32,40,56,30,41" 32 16 + insmod_test "0,32,40,56,39,45" 32 16 fi -echo GPIO test PASS - +echo "GPIO $module test PASS" From patchwork Tue Jan 19 12:30:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kent Gibson X-Patchwork-Id: 12030041 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1D7B4C4332B for ; Tue, 19 Jan 2021 14:52:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E91BF2312E for ; Tue, 19 Jan 2021 14:52:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404099AbhASOvK (ORCPT ); Tue, 19 Jan 2021 09:51:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55510 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2393058AbhASMcQ (ORCPT ); Tue, 19 Jan 2021 07:32:16 -0500 Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6B016C061575; Tue, 19 Jan 2021 04:31:34 -0800 (PST) Received: by mail-pj1-x102f.google.com with SMTP id l23so12099154pjg.1; Tue, 19 Jan 2021 04:31:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=1061C5GbJxbMGTcv4TZUmyHubDhAesam0qEzqgdRcCk=; b=cIcq/dSG0IoEC/dwzQTa59rPfKhaHmI16B1Y62L8QR0mBNGwjZrkZwxhegKTtlGjBD WsFmyMG7YiE18LsAoarhrPmosUeLMN2jYVayASp+SupVr5++VqvCV9LjUs1JMg/EIXke usvgqaHoZUXCllWVCEm+LUt+j+ksNAtc3XY30nEQ1UAJQeMFoAcGMSJCH8bfQMkv9jq1 pWukN3QWnUpeGJI0LBl55VlZKXt03FzPuyPkkqLYTicVuCHpU5u9tNHOTpfYoo9GKGje +uN0oeO/mxrhaLTpvsU7OOphtGEdKMwSrQ8ZNZufwhzEZxYFG0jSBqx5a0+pKs5Xewni k7ZQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=1061C5GbJxbMGTcv4TZUmyHubDhAesam0qEzqgdRcCk=; b=kXeUoHy0rYLbUn0DQDOitKaTDcVFiyUAxsKRZVuJrPhWLP4Fh4FxG/LsAi87/o1mx4 Z/hvv5+NhDJCTzZlyGnYaNrQdamw3V6wUW+c5/15d7vmZ4yCDqpiZcRs0p/LIVzttVf1 YC08f/jLZsUBBotxzDObZDUYRDsKYM9D0dPEI9vEDPTXZqEUpageMViqI1RV1vHAgDzc CJOvPcPSAxM1/y+XhqYkHNY3peHTNeZe3Hy5TEzHPf5zXhub2ubv+myjOTcG44Z5Qmow LArJjkd3X0Ur2JhXDTFQQqsks8WR4rZM6h9ZI9E3BnDLheiD+4B5N/prGGNqVsiYLxfQ 8a5g== X-Gm-Message-State: AOAM533s0A/Tp99+jT/NIYyBY9EegQjK/LgKcj8pbtFQ1KdDc3vKTig6 DMi12BGlg8cD5FeOu1kLCKlRN5AsSy4= X-Google-Smtp-Source: ABdhPJz7x6+2/3PrWtn3+Xj5pHx7ju3o+JvrHBZySmt6XCZ4t6UCwxgOjm8nb4GqSw42SXaHwvpurg== X-Received: by 2002:a17:90a:d249:: with SMTP id o9mr5300563pjw.196.1611059493509; Tue, 19 Jan 2021 04:31:33 -0800 (PST) Received: from sol.lan (106-69-181-154.dyn.iinet.net.au. [106.69.181.154]) by smtp.gmail.com with ESMTPSA id q4sm19283052pgr.39.2021.01.19.04.31.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Jan 2021 04:31:33 -0800 (PST) From: Kent Gibson To: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kselftest@vger.kernel.org, bgolaszewski@baylibre.com, linus.walleij@linaro.org, shuah@kernel.org, bamv2005@gmail.com Cc: Kent Gibson Subject: [PATCH v3 2/7] selftests: gpio: remove obsolete gpio-mockup-chardev.c Date: Tue, 19 Jan 2021 20:30:54 +0800 Message-Id: <20210119123059.102004-3-warthog618@gmail.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210119123059.102004-1-warthog618@gmail.com> References: <20210119123059.102004-1-warthog618@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org GPIO selftests have changed to new gpio-mockup-cdev helper, so remove old gpio-mockup-chardev helper. Signed-off-by: Kent Gibson Acked-by: Linus Walleij Reviewed-by: Bartosz Golaszewski --- .../selftests/gpio/gpio-mockup-chardev.c | 323 ------------------ 1 file changed, 323 deletions(-) delete mode 100644 tools/testing/selftests/gpio/gpio-mockup-chardev.c diff --git a/tools/testing/selftests/gpio/gpio-mockup-chardev.c b/tools/testing/selftests/gpio/gpio-mockup-chardev.c deleted file mode 100644 index 73ead8828d3a..000000000000 --- a/tools/testing/selftests/gpio/gpio-mockup-chardev.c +++ /dev/null @@ -1,323 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * GPIO chardev test helper - * - * Copyright (C) 2016 Bamvor Jian Zhang - */ - -#define _GNU_SOURCE -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "../../../gpio/gpio-utils.h" - -#define CONSUMER "gpio-selftest" -#define GC_NUM 10 -enum direction { - OUT, - IN -}; - -static int get_debugfs(char **path) -{ - struct libmnt_context *cxt; - struct libmnt_table *tb; - struct libmnt_iter *itr = NULL; - struct libmnt_fs *fs; - int found = 0, ret; - - cxt = mnt_new_context(); - if (!cxt) - err(EXIT_FAILURE, "libmount context allocation failed"); - - itr = mnt_new_iter(MNT_ITER_FORWARD); - if (!itr) - err(EXIT_FAILURE, "failed to initialize libmount iterator"); - - if (mnt_context_get_mtab(cxt, &tb)) - err(EXIT_FAILURE, "failed to read mtab"); - - while (mnt_table_next_fs(tb, itr, &fs) == 0) { - const char *type = mnt_fs_get_fstype(fs); - - if (!strcmp(type, "debugfs")) { - found = 1; - break; - } - } - if (found) { - ret = asprintf(path, "%s/gpio", mnt_fs_get_target(fs)); - if (ret < 0) - err(EXIT_FAILURE, "failed to format string"); - } - - mnt_free_iter(itr); - mnt_free_context(cxt); - - if (!found) - return -1; - - return 0; -} - -static int gpio_debugfs_get(const char *consumer, int *dir, int *value) -{ - char *debugfs; - FILE *f; - char *line = NULL; - size_t len = 0; - char *cur; - int found = 0; - - if (get_debugfs(&debugfs) != 0) - err(EXIT_FAILURE, "debugfs is not mounted"); - - f = fopen(debugfs, "r"); - if (!f) - err(EXIT_FAILURE, "read from gpio debugfs failed"); - - /* - * gpio-2 ( |gpio-selftest ) in lo - */ - while (getline(&line, &len, f) != -1) { - cur = strstr(line, consumer); - if (cur == NULL) - continue; - - cur = strchr(line, ')'); - if (!cur) - continue; - - cur += 2; - if (!strncmp(cur, "out", 3)) { - *dir = OUT; - cur += 4; - } else if (!strncmp(cur, "in", 2)) { - *dir = IN; - cur += 4; - } - - if (!strncmp(cur, "hi", 2)) - *value = 1; - else if (!strncmp(cur, "lo", 2)) - *value = 0; - - found = 1; - break; - } - free(debugfs); - fclose(f); - free(line); - - if (!found) - return -1; - - return 0; -} - -static struct gpiochip_info *list_gpiochip(const char *gpiochip_name, int *ret) -{ - struct gpiochip_info *cinfo; - struct gpiochip_info *current; - const struct dirent *ent; - DIR *dp; - char *chrdev_name; - int fd; - int i = 0; - - cinfo = calloc(sizeof(struct gpiochip_info) * 4, GC_NUM + 1); - if (!cinfo) - err(EXIT_FAILURE, "gpiochip_info allocation failed"); - - current = cinfo; - dp = opendir("/dev"); - if (!dp) { - *ret = -errno; - goto error_out; - } else { - *ret = 0; - } - - while (ent = readdir(dp), ent) { - if (check_prefix(ent->d_name, "gpiochip")) { - *ret = asprintf(&chrdev_name, "/dev/%s", ent->d_name); - if (*ret < 0) - goto error_out; - - fd = open(chrdev_name, 0); - if (fd == -1) { - *ret = -errno; - fprintf(stderr, "Failed to open %s\n", - chrdev_name); - goto error_close_dir; - } - *ret = ioctl(fd, GPIO_GET_CHIPINFO_IOCTL, current); - if (*ret == -1) { - perror("Failed to issue CHIPINFO IOCTL\n"); - goto error_close_dir; - } - close(fd); - if (strcmp(current->label, gpiochip_name) == 0 - || check_prefix(current->label, gpiochip_name)) { - *ret = 0; - current++; - i++; - } - } - } - - if ((!*ret && i == 0) || *ret < 0) { - free(cinfo); - cinfo = NULL; - } - if (!*ret && i > 0) { - cinfo = realloc(cinfo, sizeof(struct gpiochip_info) * 4 * i); - *ret = i; - } - -error_close_dir: - closedir(dp); -error_out: - if (*ret < 0) - err(EXIT_FAILURE, "list gpiochip failed: %s", strerror(*ret)); - - return cinfo; -} - -int gpio_pin_test(struct gpiochip_info *cinfo, int line, int flag, int value) -{ - struct gpiohandle_data data; - unsigned int lines[] = {line}; - int fd; - int debugfs_dir = IN; - int debugfs_value = 0; - int ret; - - data.values[0] = value; - ret = gpiotools_request_linehandle(cinfo->name, lines, 1, flag, &data, - CONSUMER); - if (ret < 0) - goto fail_out; - else - fd = ret; - - ret = gpio_debugfs_get(CONSUMER, &debugfs_dir, &debugfs_value); - if (ret) { - ret = -EINVAL; - goto fail_out; - } - if (flag & GPIOHANDLE_REQUEST_INPUT) { - if (debugfs_dir != IN) { - errno = -EINVAL; - ret = -errno; - } - } else if (flag & GPIOHANDLE_REQUEST_OUTPUT) { - if (flag & GPIOHANDLE_REQUEST_ACTIVE_LOW) - debugfs_value = !debugfs_value; - - if (!(debugfs_dir == OUT && value == debugfs_value)) { - errno = -EINVAL; - ret = -errno; - } - } - gpiotools_release_linehandle(fd); - -fail_out: - if (ret) - err(EXIT_FAILURE, "gpio<%s> line<%d> test flag<0x%x> value<%d>", - cinfo->name, line, flag, value); - - return ret; -} - -void gpio_pin_tests(struct gpiochip_info *cinfo, unsigned int line) -{ - printf("line<%d>", line); - gpio_pin_test(cinfo, line, GPIOHANDLE_REQUEST_OUTPUT, 0); - printf("."); - gpio_pin_test(cinfo, line, GPIOHANDLE_REQUEST_OUTPUT, 1); - printf("."); - gpio_pin_test(cinfo, line, - GPIOHANDLE_REQUEST_OUTPUT | GPIOHANDLE_REQUEST_ACTIVE_LOW, - 0); - printf("."); - gpio_pin_test(cinfo, line, - GPIOHANDLE_REQUEST_OUTPUT | GPIOHANDLE_REQUEST_ACTIVE_LOW, - 1); - printf("."); - gpio_pin_test(cinfo, line, GPIOHANDLE_REQUEST_INPUT, 0); - printf("."); -} - -/* - * ./gpio-mockup-chardev gpio_chip_name_prefix is_valid_gpio_chip - * Return 0 if successful or exit with EXIT_FAILURE if test failed. - * gpio_chip_name_prefix: The prefix of gpiochip you want to test. E.g. - * gpio-mockup - * is_valid_gpio_chip: Whether the gpio_chip is valid. 1 means valid, - * 0 means invalid which could not be found by - * list_gpiochip. - */ -int main(int argc, char *argv[]) -{ - char *prefix; - int valid; - struct gpiochip_info *cinfo; - struct gpiochip_info *current; - int i; - int ret; - - if (argc < 3) { - printf("Usage: %s prefix is_valid", argv[0]); - exit(EXIT_FAILURE); - } - - prefix = argv[1]; - valid = strcmp(argv[2], "true") == 0 ? 1 : 0; - - printf("Test gpiochip %s: ", prefix); - cinfo = list_gpiochip(prefix, &ret); - if (!cinfo) { - if (!valid && ret == 0) { - printf("Invalid test successful\n"); - ret = 0; - goto out; - } else { - ret = -EINVAL; - goto out; - } - } else if (cinfo && !valid) { - ret = -EINVAL; - goto out; - } - current = cinfo; - for (i = 0; i < ret; i++) { - gpio_pin_tests(current, 0); - gpio_pin_tests(current, current->lines - 1); - gpio_pin_tests(current, random() % current->lines); - current++; - } - ret = 0; - printf("successful\n"); - -out: - if (ret) - fprintf(stderr, "gpio<%s> test failed\n", prefix); - - if (cinfo) - free(cinfo); - - if (ret) - exit(EXIT_FAILURE); - - return ret; -} From patchwork Tue Jan 19 12:30:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kent Gibson X-Patchwork-Id: 12030301 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E341FC07548 for ; Tue, 19 Jan 2021 18:27:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B26D822E01 for ; Tue, 19 Jan 2021 18:27:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404646AbhASOvO (ORCPT ); Tue, 19 Jan 2021 09:51:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55528 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2393064AbhASMcU (ORCPT ); Tue, 19 Jan 2021 07:32:20 -0500 Received: from mail-pf1-x42f.google.com (mail-pf1-x42f.google.com [IPv6:2607:f8b0:4864:20::42f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC2BFC061757; Tue, 19 Jan 2021 04:31:39 -0800 (PST) Received: by mail-pf1-x42f.google.com with SMTP id q20so12147016pfu.8; Tue, 19 Jan 2021 04:31:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=NCSydqpnHVjAmvTqsjkiTNmZXzdwl6yVgm/Kw1jmQmE=; b=snSA0a1Y3HOpkhm5sl1YTuqJ52tj5O+GIL4EQwK4Cu+oXDaB8AzBVwvmXn2TwSvRGV 32vUmE8MtVBlqosgFjROj1EONMhB0CCqekPAfQkRIiUPHOlSQsJftMLR4u+LIxePGyGg VEHyFIUPxWZBy6hSwYZjXinAAvEfn/ERWpGyuZH+PTX+3fJIsjxIcKSvjvf+ljiJlm0c bwbFMykeTZFJdmkXmMT40NNRpwsXusJlQ2io7sikbOy/sY6exMHTB+22Mmj0K+SUijWn tjy3Z5zrXyKIMZHcPUvcobinnSs7gwe34bcVanqyhTMtak/fdpJ4UojYfexDsxQOuASm Votw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=NCSydqpnHVjAmvTqsjkiTNmZXzdwl6yVgm/Kw1jmQmE=; b=pZPBcgPaRVC/L0t+Q5Pibqtju+olOED4KvnnpY1dLQd16RIOHw5A2958FVI7qhtsjO 5F8G/p9s1WOJDepaqHw4ovEW6N9P9ta9RAs98Nxl++erxKBfkYf5fPBXAyZpXJRwlR1A pwa3Hx2SpoDkZVeWlzVvAOfh64rA0GIaWnIioWepvPj9avJ1cqzTxSE3dB20mbyhDzby YrckHUhfcLBTbR9HpFYU/odk4uszVkKNKOWTFL4E+J8qbU1eBxb1zN4i90DCRAqqIKFW nwteRvfiKyUI5QNnugZLbYtCeMcVIwZ1qIrcjCr48nu8rFyVv7mxD/SLgndXyyA1wjs7 FL9g== X-Gm-Message-State: AOAM533mqey1hiyrqy2b8EGpI8beHGlMJ2Idc3n2FsTxYaypm9PQb4tv 8XoEuPLH0P5ZbQ+GGUZH1+rYoLeDCoc= X-Google-Smtp-Source: ABdhPJzOFeGsNRsxwIA/iDbyjjpbz/oKvEaUi+zGM5sFdp+jAPEcTQCGUo5EPbetf6EpXiWxv1eJkA== X-Received: by 2002:aa7:8bc3:0:b029:1ba:7a2:7720 with SMTP id s3-20020aa78bc30000b02901ba07a27720mr999384pfd.3.1611059498924; Tue, 19 Jan 2021 04:31:38 -0800 (PST) Received: from sol.lan (106-69-181-154.dyn.iinet.net.au. [106.69.181.154]) by smtp.gmail.com with ESMTPSA id q4sm19283052pgr.39.2021.01.19.04.31.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Jan 2021 04:31:38 -0800 (PST) From: Kent Gibson To: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kselftest@vger.kernel.org, bgolaszewski@baylibre.com, linus.walleij@linaro.org, shuah@kernel.org, bamv2005@gmail.com Cc: Kent Gibson Subject: [PATCH v3 3/7] selftests: remove obsolete build restriction for gpio Date: Tue, 19 Jan 2021 20:30:55 +0800 Message-Id: <20210119123059.102004-4-warthog618@gmail.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210119123059.102004-1-warthog618@gmail.com> References: <20210119123059.102004-1-warthog618@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Build restrictions related to the gpio-mockup-chardev helper are no longer relevant so remove them. Signed-off-by: Kent Gibson Acked-by: Linus Walleij Reviewed-by: Bartosz Golaszewski --- tools/testing/selftests/Makefile | 9 --------- 1 file changed, 9 deletions(-) diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index afbab4aeef3c..75a30a5d9945 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -123,15 +123,6 @@ ARCH ?= $(SUBARCH) export KSFT_KHDR_INSTALL_DONE := 1 export BUILD -# build and run gpio when output directory is the src dir. -# gpio has dependency on tools/gpio and builds tools/gpio -# objects in the src directory in all cases making the src -# repo dirty even when objects are relocated. -ifneq (1,$(DEFAULT_INSTALL_HDR_PATH)) - TMP := $(filter-out gpio, $(TARGETS)) - TARGETS := $(TMP) -endif - # set default goal to all, so make without a target runs all, even when # all isn't the first target in the file. .DEFAULT_GOAL := all From patchwork Tue Jan 19 12:30:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kent Gibson X-Patchwork-Id: 12030043 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 54953C43331 for ; Tue, 19 Jan 2021 14:52:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2AD922312E for ; Tue, 19 Jan 2021 14:52:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404733AbhASOvQ (ORCPT ); Tue, 19 Jan 2021 09:51:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55548 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2393075AbhASMcZ (ORCPT ); Tue, 19 Jan 2021 07:32:25 -0500 Received: from mail-pg1-x533.google.com (mail-pg1-x533.google.com [IPv6:2607:f8b0:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9B985C0613C1; Tue, 19 Jan 2021 04:31:44 -0800 (PST) Received: by mail-pg1-x533.google.com with SMTP id v19so12842614pgj.12; Tue, 19 Jan 2021 04:31:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=+JLDSkRZX1A32iY7ojiQ/x6no5IxYCI3Qh2YXDpNLT4=; b=G3TNRC655dwGqNqNnIpiH041uEUGD6dfO7WXo/y23S0wYnsdle0LPGRJ+hPfSGO529 ARiAuphiP9v8JVNIsTCPUI/ckP5feQ33jojN0k9ZUPtgeZbdOHhY8FhOlg/vex/3ijG9 N02KDKpbE4CyNGDOxR6w/AJsm6As/oSa/0S+zbQm2jwd7IRW2OwEHtlUHGqGGRvKwCMC Hy2Tp/Cdjtb9z4CD2p/sq91RkA+cAaC12rMaBssyKC31IsX7CFs1k8moYx6qHceJbRKM beTL9tgkEWsO6D9JyNjHGkm+88yXzCqrseadvCzL/MBx1xjgMSXXduOaUzU61ATGOxuu RqAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=+JLDSkRZX1A32iY7ojiQ/x6no5IxYCI3Qh2YXDpNLT4=; b=rGQms7uv4AzV+7LR/0FJDopPyJmBFgDS+eP/C8Z6FvqyhH1+/c5puzYFy89p/ZhD5W egp5wD6smkwnnPUuRDFu0xckqfHobeqHdQy3Tm1XnFfpiAZHiI9KrglwTE54StQkVYZp rxQcKgQOdNGMKjb7yWQRkQRw2ZpPivLxu2HxeoHH+94RzQSKxHpiDTGIKGYpVhxs73tX S2t7uoicM+ZB8PesdTWH0Wrp90V4HHi+tcabAP8IzdYtlPVhzuFhyg01eH7Fi+jNjYYm 5PGXSVeW4uPuIbL08ZonFBVmKDP/ZmgRnaSo5y4gAOtK1BfwLjC3eeshsnQ/PlV8JvhF I6Nw== X-Gm-Message-State: AOAM5318b8WJCUjGmv/TAEHHvBPJjlgrlAsAmRhV6sEpYJpi6/mcwvJe jAYLE6JgVzp4MTqwADK1BsNd3exSSRU= X-Google-Smtp-Source: ABdhPJzPdxqggGs5/R0uiPSxsoutD60rLp6zKUbBPVf7+xR0X8CLBMmMddtE1cI3STYfDhsOlTw1cw== X-Received: by 2002:a63:cf06:: with SMTP id j6mr4214942pgg.195.1611059503900; Tue, 19 Jan 2021 04:31:43 -0800 (PST) Received: from sol.lan (106-69-181-154.dyn.iinet.net.au. [106.69.181.154]) by smtp.gmail.com with ESMTPSA id q4sm19283052pgr.39.2021.01.19.04.31.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Jan 2021 04:31:43 -0800 (PST) From: Kent Gibson To: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kselftest@vger.kernel.org, bgolaszewski@baylibre.com, linus.walleij@linaro.org, shuah@kernel.org, bamv2005@gmail.com Cc: Kent Gibson Subject: [PATCH v3 4/7] selftests: remove obsolete gpio references from kselftest_deps.sh Date: Tue, 19 Jan 2021 20:30:56 +0800 Message-Id: <20210119123059.102004-5-warthog618@gmail.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210119123059.102004-1-warthog618@gmail.com> References: <20210119123059.102004-1-warthog618@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org GPIO Makefile has been greatly simplified so remove references to lines which no longer exist. Signed-off-by: Kent Gibson Acked-by: Linus Walleij Reviewed-by: Bartosz Golaszewski --- tools/testing/selftests/kselftest_deps.sh | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/tools/testing/selftests/kselftest_deps.sh b/tools/testing/selftests/kselftest_deps.sh index bbc04646346b..00e60d6eb16b 100755 --- a/tools/testing/selftests/kselftest_deps.sh +++ b/tools/testing/selftests/kselftest_deps.sh @@ -129,13 +129,11 @@ l2_tests=$(grep -r --include=Makefile ": LDLIBS" | \ grep -v "VAR_LDLIBS" | awk -F: '{print $1}') # Level 3 -# gpio, memfd and others use pkg-config to find mount and fuse libs +# memfd and others use pkg-config to find mount and fuse libs # respectively and save it in VAR_LDLIBS. If pkg-config doesn't find # any, VAR_LDLIBS set to default. # Use the default value and filter out pkg-config for dependency check. # e.g: -# gpio/Makefile -# VAR_LDLIBS := $(shell pkg-config --libs mount) 2>/dev/null) # memfd/Makefile # VAR_LDLIBS := $(shell pkg-config fuse --libs 2>/dev/null) From patchwork Tue Jan 19 12:30:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kent Gibson X-Patchwork-Id: 12030303 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1CC5BC4161F for ; Tue, 19 Jan 2021 18:27:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0198822E01 for ; Tue, 19 Jan 2021 18:27:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404749AbhASOvS (ORCPT ); Tue, 19 Jan 2021 09:51:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55716 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2393144AbhASMdN (ORCPT ); Tue, 19 Jan 2021 07:33:13 -0500 Received: from mail-pj1-x102a.google.com (mail-pj1-x102a.google.com [IPv6:2607:f8b0:4864:20::102a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A1220C0613CF; Tue, 19 Jan 2021 04:31:49 -0800 (PST) Received: by mail-pj1-x102a.google.com with SMTP id j12so3105931pjy.5; Tue, 19 Jan 2021 04:31:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=cCv2wIHBUA2OBP0G0sZ8W1yCZLNMmx7yo4vsapAVUbs=; b=n8hJ6koBqoYIRBhYsduA+Neqlg+nVEHcSbH3TdGz6OC4y8oXOxr3ZWcoIWNBGKGkee avyx2rEp2QsRnpgegNSM6ntC9sxvYJGq9ICJg8L9HdjIR+xwBqYsBXsUIFjHiozFMAhQ yupTCXDekahLXRQnlUnvh8dkMSTua4OF9T3bRMTiIcGSS//I+qORxBZrXRYVDqbXNhBO 5s/Cgs2pmue2RptBDayfAUEgyqSixKANDNQUhLP2OgVoOK5O/t5iTGTsnxZ6dovmetIA gd/dcBFA7aJT+U1Ot7tA5uIepuIzxoV5qqXzAYUmfMmXfDY6RFF09hAGDuwgRqs4vMOT 0CNA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=cCv2wIHBUA2OBP0G0sZ8W1yCZLNMmx7yo4vsapAVUbs=; b=DA0MxVHi9Dq8x4+JUYjvhIdKEyvk2HjlHnu2ZCXiwBC5Sk1J2QSvCsWWTAzULccIIV J9LlhT9tL+5qnBSrfsrsYlVKGAam4TcnGfM01vIxX3W7Z9S3sTFyK0HWO2O+v5LaA5Z7 3OVNZYNT+m3u1k0EkT8RmvAl484CKSYfn01AZ71u3+qJUy3z0a6m7Rog4CnqRcraogUD XiJhUXP3lmj6zvWAF/jb7Rwq9vneSAAARDgEcHwNUxYIT8f2D4r3iBnFZmm2/iWnzAuN QavWmB6hZrE6Cbu/Bc24obAwQ7Wy0dk0Q7U5nqPydx/tP3W1eYJ7z1sgx8EQzPLZfEB0 qPBw== X-Gm-Message-State: AOAM533DOdYC6o6CoqWZOesQ5iP+U153hREAgmvU2li4YylAliTp15Ls g1fST5TOt06JVANG161KKHmlnkxG4bI= X-Google-Smtp-Source: ABdhPJyR/zicJHQLPdl13dvirO0HxefzsfhxWPZXnMV6aiasWHcG0ovss3HNoR05hyMgaoFQ+9JfRA== X-Received: by 2002:a17:90a:f404:: with SMTP id ch4mr5166086pjb.78.1611059508770; Tue, 19 Jan 2021 04:31:48 -0800 (PST) Received: from sol.lan (106-69-181-154.dyn.iinet.net.au. [106.69.181.154]) by smtp.gmail.com with ESMTPSA id q4sm19283052pgr.39.2021.01.19.04.31.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Jan 2021 04:31:48 -0800 (PST) From: Kent Gibson To: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kselftest@vger.kernel.org, bgolaszewski@baylibre.com, linus.walleij@linaro.org, shuah@kernel.org, bamv2005@gmail.com Cc: Kent Gibson Subject: [PATCH v3 5/7] tools: gpio: remove uAPI v1 code no longer used by selftests Date: Tue, 19 Jan 2021 20:30:57 +0800 Message-Id: <20210119123059.102004-6-warthog618@gmail.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210119123059.102004-1-warthog618@gmail.com> References: <20210119123059.102004-1-warthog618@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org gpio-mockup-chardev helper has been obsoleted and removed, so also remove the tools/gpio code that it, and nothing else, was using. Signed-off-by: Kent Gibson Acked-by: Linus Walleij Reviewed-by: Bartosz Golaszewski --- tools/gpio/gpio-utils.c | 89 ----------------------------------------- tools/gpio/gpio-utils.h | 6 --- 2 files changed, 95 deletions(-) diff --git a/tools/gpio/gpio-utils.c b/tools/gpio/gpio-utils.c index 37187e056c8b..1639b4d832cd 100644 --- a/tools/gpio/gpio-utils.c +++ b/tools/gpio/gpio-utils.c @@ -32,74 +32,6 @@ * following api will request gpio lines, do the operation and then * release these lines. */ -/** - * gpiotools_request_linehandle() - request gpio lines in a gpiochip - * @device_name: The name of gpiochip without prefix "/dev/", - * such as "gpiochip0" - * @lines: An array desired lines, specified by offset - * index for the associated GPIO device. - * @num_lines: The number of lines to request. - * @flag: The new flag for requsted gpio. Reference - * "linux/gpio.h" for the meaning of flag. - * @data: Default value will be set to gpio when flag is - * GPIOHANDLE_REQUEST_OUTPUT. - * @consumer_label: The name of consumer, such as "sysfs", - * "powerkey". This is useful for other users to - * know who is using. - * - * Request gpio lines through the ioctl provided by chardev. User - * could call gpiotools_set_values() and gpiotools_get_values() to - * read and write respectively through the returned fd. Call - * gpiotools_release_linehandle() to release these lines after that. - * - * Return: On success return the fd; - * On failure return the errno. - */ -int gpiotools_request_linehandle(const char *device_name, unsigned int *lines, - unsigned int num_lines, unsigned int flag, - struct gpiohandle_data *data, - const char *consumer_label) -{ - struct gpiohandle_request req; - char *chrdev_name; - int fd; - int i; - int ret; - - ret = asprintf(&chrdev_name, "/dev/%s", device_name); - if (ret < 0) - return -ENOMEM; - - fd = open(chrdev_name, 0); - if (fd == -1) { - ret = -errno; - fprintf(stderr, "Failed to open %s, %s\n", - chrdev_name, strerror(errno)); - goto exit_free_name; - } - - for (i = 0; i < num_lines; i++) - req.lineoffsets[i] = lines[i]; - - req.flags = flag; - strcpy(req.consumer_label, consumer_label); - req.lines = num_lines; - if (flag & GPIOHANDLE_REQUEST_OUTPUT) - memcpy(req.default_values, data, sizeof(req.default_values)); - - ret = ioctl(fd, GPIO_GET_LINEHANDLE_IOCTL, &req); - if (ret == -1) { - ret = -errno; - fprintf(stderr, "Failed to issue %s (%d), %s\n", - "GPIO_GET_LINEHANDLE_IOCTL", ret, strerror(errno)); - } - - if (close(fd) == -1) - perror("Failed to close GPIO character device file"); -exit_free_name: - free(chrdev_name); - return ret < 0 ? ret : req.fd; -} /** * gpiotools_request_line() - request gpio lines in a gpiochip @@ -215,27 +147,6 @@ int gpiotools_get_values(const int fd, struct gpio_v2_line_values *values) return ret; } -/** - * gpiotools_release_linehandle(): Release the line(s) of gpiochip - * @fd: The fd returned by - * gpiotools_request_linehandle(). - * - * Return: On success return 0; - * On failure return the errno. - */ -int gpiotools_release_linehandle(const int fd) -{ - int ret; - - ret = close(fd); - if (ret == -1) { - perror("Failed to close GPIO LINEHANDLE device file"); - ret = -errno; - } - - return ret; -} - /** * gpiotools_release_line(): Release the line(s) of gpiochip * @fd: The fd returned by diff --git a/tools/gpio/gpio-utils.h b/tools/gpio/gpio-utils.h index 6c69a9f1c253..8af7c8ee19ce 100644 --- a/tools/gpio/gpio-utils.h +++ b/tools/gpio/gpio-utils.h @@ -24,12 +24,6 @@ static inline int check_prefix(const char *str, const char *prefix) strncmp(str, prefix, strlen(prefix)) == 0; } -int gpiotools_request_linehandle(const char *device_name, unsigned int *lines, - unsigned int num_lines, unsigned int flag, - struct gpiohandle_data *data, - const char *consumer_label); -int gpiotools_release_linehandle(const int fd); - int gpiotools_request_line(const char *device_name, unsigned int *lines, unsigned int num_lines, From patchwork Tue Jan 19 12:30:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kent Gibson X-Patchwork-Id: 12030045 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5F025C4332E for ; Tue, 19 Jan 2021 14:52:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4261523158 for ; Tue, 19 Jan 2021 14:52:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404768AbhASOvU (ORCPT ); Tue, 19 Jan 2021 09:51:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55718 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2393146AbhASMdN (ORCPT ); Tue, 19 Jan 2021 07:33:13 -0500 Received: from mail-pg1-x536.google.com (mail-pg1-x536.google.com [IPv6:2607:f8b0:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BE515C0613D3; Tue, 19 Jan 2021 04:31:54 -0800 (PST) Received: by mail-pg1-x536.google.com with SMTP id n10so12852411pgl.10; Tue, 19 Jan 2021 04:31:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=rO4FgoQlfT5qC78SA/iF3xAy8MoN9OhEKSPd1TRY9cI=; b=IaOZMO1t2gJVw6vcWJASbjqEavOIm4Zghpnif9K619FUqWYbl6mUr2tU9TML/cwdWS bwl8iqxUZgpGVrzdJsaIuN/OklqTg+pJYYXIkwSPqP0pFzv6NBf128K1pjoojVfXSJ2l d8NVhiOGH1h+J1NLQEMEE12FtK66O2FwOfyrsgGff4QkM5HBn8x5wwAc03L3vJdFwoHS 2HsAKznZyseE+VB1n/hb0TDySy4h7yWUN2aCcoWd8TRFJGxdqiv2bYvLnHdNXs/xpp7s hnrpcJHsu2DIhF9BTtCmJmI6c8fAOXPlCtTun73AW35SRyDmmPRXlIBlV+7hrzf6owjl ggEw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=rO4FgoQlfT5qC78SA/iF3xAy8MoN9OhEKSPd1TRY9cI=; b=VMugaEnb//8uJzVribFSq+HOlUKFCH9ieCARzY9tr/gDFxxjF9ZvEdbjm/3wPNjkLj UWSDh7xF7b79eXhI5vwWdMH5FWgKZZWfyYXFD7jp/FbduX3C2mVKcpm58Z5C9+oZZIgL /7Lp2uUAz2iHyk3mCvH+FVfkGKE+AhXvbKRt5r0BehX2/QbAKRSYeGyBA3PGOK8qzHi0 fGDdK2jle46q8T/7fBj732eFz+hLgAp7WjCOTX6NZ+EvMdIsSIamx4s4gktHF81mODx6 Sl1l8rqPYpTrNEOBJS6T5YzdffDKp+qLzRKy0k/Tglfypbn2alvnRDPGEhgtwvEVob0i b1Rg== X-Gm-Message-State: AOAM530wfcKYFzfz0tLSJusGOMnRCEeYQwuSXNtK6epVYNcYTMsYYzMR 3admLf69ZHXj4AKzOhTatCGnW+C0JFU= X-Google-Smtp-Source: ABdhPJwslojPn+O2Hb4zttn2fRuPOWF/Lef6EFBDPvuXeCLXae42ioiQs2MkYGIHqKsws0HeIf1qFw== X-Received: by 2002:a62:7fc1:0:b029:19f:1dab:5029 with SMTP id a184-20020a627fc10000b029019f1dab5029mr3981033pfd.13.1611059513648; Tue, 19 Jan 2021 04:31:53 -0800 (PST) Received: from sol.lan (106-69-181-154.dyn.iinet.net.au. [106.69.181.154]) by smtp.gmail.com with ESMTPSA id q4sm19283052pgr.39.2021.01.19.04.31.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Jan 2021 04:31:53 -0800 (PST) From: Kent Gibson To: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kselftest@vger.kernel.org, bgolaszewski@baylibre.com, linus.walleij@linaro.org, shuah@kernel.org, bamv2005@gmail.com Cc: Kent Gibson Subject: [PATCH v3 6/7] selftests: gpio: port to GPIO uAPI v2 Date: Tue, 19 Jan 2021 20:30:58 +0800 Message-Id: <20210119123059.102004-7-warthog618@gmail.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210119123059.102004-1-warthog618@gmail.com> References: <20210119123059.102004-1-warthog618@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Add a port to the GPIO uAPI v2 interface and make it the default. Signed-off-by: Kent Gibson Acked-by: Linus Walleij Reviewed-by: Bartosz Golaszewski --- .../testing/selftests/gpio/gpio-mockup-cdev.c | 75 +++++++++++++++++-- tools/testing/selftests/gpio/gpio-mockup.sh | 11 ++- 2 files changed, 76 insertions(+), 10 deletions(-) diff --git a/tools/testing/selftests/gpio/gpio-mockup-cdev.c b/tools/testing/selftests/gpio/gpio-mockup-cdev.c index 3a7fc3ac1349..e83eac71621a 100644 --- a/tools/testing/selftests/gpio/gpio-mockup-cdev.c +++ b/tools/testing/selftests/gpio/gpio-mockup-cdev.c @@ -18,6 +18,44 @@ #define CONSUMER "gpio-mockup-cdev" +static int request_line_v2(int cfd, unsigned int offset, + uint64_t flags, unsigned int val) +{ + struct gpio_v2_line_request req; + int ret; + + memset(&req, 0, sizeof(req)); + req.num_lines = 1; + req.offsets[0] = offset; + req.config.flags = flags; + strcpy(req.consumer, CONSUMER); + if (flags & GPIO_V2_LINE_FLAG_OUTPUT) { + req.config.num_attrs = 1; + req.config.attrs[0].mask = 1; + req.config.attrs[0].attr.id = GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES; + if (val) + req.config.attrs[0].attr.values = 1; + } + ret = ioctl(cfd, GPIO_V2_GET_LINE_IOCTL, &req); + if (ret == -1) + return -errno; + return req.fd; +} + + +static int get_value_v2(int lfd) +{ + struct gpio_v2_line_values vals; + int ret; + + memset(&vals, 0, sizeof(vals)); + vals.mask = 1; + ret = ioctl(lfd, GPIO_V2_LINE_GET_VALUES_IOCTL, &vals); + if (ret == -1) + return -errno; + return vals.bits & 0x1; +} + static int request_line_v1(int cfd, unsigned int offset, uint32_t flags, unsigned int val) { @@ -57,6 +95,7 @@ static void usage(char *prog) printf(" (default is to leave bias unchanged):\n"); printf(" -l: set line active low (default is active high)\n"); printf(" -s: set line value (default is to get line value)\n"); + printf(" -u: uAPI version to use (default is 2)\n"); exit(-1); } @@ -78,29 +117,42 @@ int main(int argc, char *argv[]) { char *chip; int opt, ret, cfd, lfd; - unsigned int offset, val; + unsigned int offset, val, abiv; uint32_t flags_v1; + uint64_t flags_v2; + abiv = 2; ret = 0; flags_v1 = GPIOHANDLE_REQUEST_INPUT; + flags_v2 = GPIO_V2_LINE_FLAG_INPUT; while ((opt = getopt(argc, argv, "lb:s:u:")) != -1) { switch (opt) { case 'l': flags_v1 |= GPIOHANDLE_REQUEST_ACTIVE_LOW; + flags_v2 |= GPIO_V2_LINE_FLAG_ACTIVE_LOW; break; case 'b': - if (strcmp("pull-up", optarg) == 0) + if (strcmp("pull-up", optarg) == 0) { flags_v1 |= GPIOHANDLE_REQUEST_BIAS_PULL_UP; - else if (strcmp("pull-down", optarg) == 0) + flags_v2 |= GPIO_V2_LINE_FLAG_BIAS_PULL_UP; + } else if (strcmp("pull-down", optarg) == 0) { flags_v1 |= GPIOHANDLE_REQUEST_BIAS_PULL_DOWN; - else if (strcmp("disabled", optarg) == 0) + flags_v2 |= GPIO_V2_LINE_FLAG_BIAS_PULL_DOWN; + } else if (strcmp("disabled", optarg) == 0) { flags_v1 |= GPIOHANDLE_REQUEST_BIAS_DISABLE; + flags_v2 |= GPIO_V2_LINE_FLAG_BIAS_DISABLED; + } break; case 's': val = atoi(optarg); flags_v1 &= ~GPIOHANDLE_REQUEST_INPUT; flags_v1 |= GPIOHANDLE_REQUEST_OUTPUT; + flags_v2 &= ~GPIO_V2_LINE_FLAG_INPUT; + flags_v2 |= GPIO_V2_LINE_FLAG_OUTPUT; + break; + case 'u': + abiv = atoi(optarg); break; default: usage(argv[0]); @@ -119,7 +171,10 @@ int main(int argc, char *argv[]) return -errno; } - lfd = request_line_v1(cfd, offset, flags_v1, val); + if (abiv == 1) + lfd = request_line_v1(cfd, offset, flags_v1, val); + else + lfd = request_line_v2(cfd, offset, flags_v2, val); close(cfd); @@ -128,10 +183,14 @@ int main(int argc, char *argv[]) return lfd; } - if (flags_v1 & GPIOHANDLE_REQUEST_OUTPUT) + if (flags_v2 & GPIO_V2_LINE_FLAG_OUTPUT) { wait_signal(); - else - ret = get_value_v1(lfd); + } else { + if (abiv == 1) + ret = get_value_v1(lfd); + else + ret = get_value_v2(lfd); + } close(lfd); diff --git a/tools/testing/selftests/gpio/gpio-mockup.sh b/tools/testing/selftests/gpio/gpio-mockup.sh index 0aa8e4294de1..0d6c5f7f95d2 100755 --- a/tools/testing/selftests/gpio/gpio-mockup.sh +++ b/tools/testing/selftests/gpio/gpio-mockup.sh @@ -14,6 +14,7 @@ module="gpio-mockup" verbose= full_test= random= +uapi_opt= active_opt= bias_opt= line_set_pid= @@ -30,6 +31,7 @@ usage() echo "-r: test random lines as well as fence posts" echo "-t: interface type:" echo " cdev (character device ABI) - default" + echo " cdev_v1 (deprecated character device ABI)" echo " sysfs (deprecated SYSFS ABI)" echo "-v: verbose progress reporting" exit $ksft_fail @@ -100,7 +102,8 @@ get_line() { release_line - $BASE/gpio-mockup-cdev $active_opt /dev/$chip $offset + local cdev_opts=${uapi_opt}${active_opt} + $BASE/gpio-mockup-cdev $cdev_opts /dev/$chip $offset echo $? } @@ -142,7 +145,7 @@ set_line() esac done - local cdev_opts=${active_opt} + local cdev_opts=${uapi_opt}${active_opt} if [ "$val" ]; then $BASE/gpio-mockup-cdev $cdev_opts -s$val /dev/$chip $offset & # failure to set is detected by reading mockup and toggling values @@ -340,6 +343,10 @@ sysfs) source $BASE/gpio-mockup-sysfs.sh echo "WARNING: gpio sysfs ABI is deprecated." ;; +cdev_v1) + echo "WARNING: gpio cdev ABI v1 is deprecated." + uapi_opt="-u1 " + ;; cdev) ;; *) From patchwork Tue Jan 19 12:30:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kent Gibson X-Patchwork-Id: 12030047 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8ED66C43333 for ; Tue, 19 Jan 2021 14:52:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5B1232312E for ; Tue, 19 Jan 2021 14:52:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404794AbhASOvW (ORCPT ); Tue, 19 Jan 2021 09:51:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55804 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404286AbhASMdd (ORCPT ); Tue, 19 Jan 2021 07:33:33 -0500 Received: from mail-pl1-x636.google.com (mail-pl1-x636.google.com [IPv6:2607:f8b0:4864:20::636]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B486FC0613D6; Tue, 19 Jan 2021 04:31:59 -0800 (PST) Received: by mail-pl1-x636.google.com with SMTP id e9so6262609plh.3; Tue, 19 Jan 2021 04:31:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=IKTIqcQhkM3h5tDVoQgabgdbJqdqY8zjeGWY7T21Mo0=; b=Lc8inz36bV709VGqzp1ApA1O7MVA0IQfYykipyTgn/0gmhgn/eurbMV5w3oLjVzduZ 5UtfH8SSHGlCX/EoDe6h+foEGVtNCBd/p2rrNlgRC7gZuXVOyL7yFg6hQHx8+56of6e4 RPRVSqNr+WN7jF1mRyKnGaLItUF7rX921lru+jlO+aEMn+rGQCIs/T3VJ6BenyaJP7Kb +BP9Ltj+JJ8WHBpOqpmncF+apD5wErwKpFL/b0+koR2UW6v5a195W8K4E2YI/2m9254+ 26QMjlH1MYs1U+0Rzp7JRRAMtX0abw8CQXMf/73aSo6KXmBNqCU+CyDI4HsH7pUeUICy 1LYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=IKTIqcQhkM3h5tDVoQgabgdbJqdqY8zjeGWY7T21Mo0=; b=id4KJeXcZFqm6eZl731iP4Bok+dFN3A41+7mtgZfWE+jKc0dO6e/XfTSkuU4DWHGrT V6LNNDBgvv/pfcHT9AP24lHpDe+bYq0N6MN1spOJHzZKpYkcG6dBSRzPy2NQva5YR2/9 NWUsAkYhogA0mVppY7AcUNT34d7S98foQazkoPGEr1dpId0cpDXnuLiZpKiE2K/rqupN NwRPUkb+4lO9ZmtUYKZ57roKP1j2S9RJb/oJJNYri/pEA+2FbbqoMEJTMlaP3JWX5Rce rBToICyaHtLpQ2wAh8NjvdSueCHBIBI7g7jCTa0GMgqDrpDeYsD3QCV+uGv8gjGvEzML JCAA== X-Gm-Message-State: AOAM5331Mnws1neU2WT4Zz8B/HiYJPmVMhXbdk3lgdJ3qpOsGZOFSinx +C1i6IognDaK0TJZCwvzgyPq9kdNONw= X-Google-Smtp-Source: ABdhPJya2Hri6hDk3mcgBsM+oNYotByVuzx9UzsuUXVoI4fHHkuvOqPQPg0Yubq/c7YO/relM51Clw== X-Received: by 2002:a17:90a:f988:: with SMTP id cq8mr5313365pjb.71.1611059519011; Tue, 19 Jan 2021 04:31:59 -0800 (PST) Received: from sol.lan (106-69-181-154.dyn.iinet.net.au. [106.69.181.154]) by smtp.gmail.com with ESMTPSA id q4sm19283052pgr.39.2021.01.19.04.31.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Jan 2021 04:31:58 -0800 (PST) From: Kent Gibson To: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kselftest@vger.kernel.org, bgolaszewski@baylibre.com, linus.walleij@linaro.org, shuah@kernel.org, bamv2005@gmail.com Cc: Kent Gibson Subject: [PATCH v3 7/7] selftests: gpio: add CONFIG_GPIO_CDEV to config Date: Tue, 19 Jan 2021 20:30:59 +0800 Message-Id: <20210119123059.102004-8-warthog618@gmail.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210119123059.102004-1-warthog618@gmail.com> References: <20210119123059.102004-1-warthog618@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org GPIO CDEV is now optional and required for the selftests so add it to the config. Signed-off-by: Kent Gibson Acked-by: Linus Walleij Reviewed-by: Bartosz Golaszewski --- tools/testing/selftests/gpio/config | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/gpio/config b/tools/testing/selftests/gpio/config index abaa6902b7b6..ce100342c20b 100644 --- a/tools/testing/selftests/gpio/config +++ b/tools/testing/selftests/gpio/config @@ -1,2 +1,3 @@ CONFIG_GPIOLIB=y +CONFIG_GPIO_CDEV=y CONFIG_GPIO_MOCKUP=m