On 12/13/2016 05:42 AM, Zhangjian (Bamvor) wrote:
> Ping.
>
> On 2016/11/21 18:16, bamvor.zhangjian@xxxxxxxxxx wrote:
>> From: Bamvor Jian Zhang <bamvor.zhangjian@xxxxxxxxxx>
>>
>> This test script try to do whitebox testing for gpio subsystem(based on
>> gpiolib). It manipulate gpio device through chardev or sysfs and check
>> the result from debugfs. This script test gpio-mockup through chardev by
>> default. User could test other gpio chip by passing the module name.
>> Some of the testcases are turned off by default to avoid the conflicting
>> with gpiochip in system.
>>
>> In details, it test the following things:
>> 1. Test direction and output value for valid pin.
>> 2. Test dynamic allocation of gpio base.
>> 3. Add single, multi gpiochip to do overlap check.
>>
>> Run "tools/testing/selftests/gpio/gpio-mockup.sh -h" for usage.
>>
>> Acked-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
>> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangjian@xxxxxxxxxx>
Hi Linus/Bemovar,
It is now in linux-kselftest next for 4.10-rc1
thanks,
-- Shuah
>> ---
>> Changes since v4:
>> 1. Install header to to linux/usr/include instead of default path
>> 2. Print being deprecated for sysfs ABI.
>>
>> tools/testing/selftests/Makefile | 1 +
>> tools/testing/selftests/gpio/Makefile | 23 ++
>> tools/testing/selftests/gpio/gpio-mockup-chardev.c | 324 +++++++++++++++++++++
>> tools/testing/selftests/gpio/gpio-mockup-sysfs.sh | 134 +++++++++
>> tools/testing/selftests/gpio/gpio-mockup.sh | 201 +++++++++++++
>> 5 files changed, 683 insertions(+)
>> create mode 100644 tools/testing/selftests/gpio/Makefile
>> create mode 100644 tools/testing/selftests/gpio/gpio-mockup-chardev.c
>> create mode 100755 tools/testing/selftests/gpio/gpio-mockup-sysfs.sh
>> create mode 100755 tools/testing/selftests/gpio/gpio-mockup.sh
>>
>> diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
>> index ff9e5f2..2437dbc 100644
>> --- a/tools/testing/selftests/Makefile
>> +++ b/tools/testing/selftests/Makefile
>> @@ -6,6 +6,7 @@ TARGETS += exec
>> TARGETS += firmware
>> TARGETS += ftrace
>> TARGETS += futex
>> +TARGETS += gpio
>> TARGETS += ipc
>> TARGETS += kcmp
>> TARGETS += lib
>> diff --git a/tools/testing/selftests/gpio/Makefile b/tools/testing/selftests/gpio/Makefile
>> new file mode 100644
>> index 0000000..205e4d1
>> --- /dev/null
>> +++ b/tools/testing/selftests/gpio/Makefile
>> @@ -0,0 +1,23 @@
>> +
>> +TEST_PROGS := gpio-mockup.sh
>> +TEST_FILES := gpio-mockup-sysfs.sh $(BINARIES)
>> +BINARIES := gpio-mockup-chardev
>> +
>> +include ../lib.mk
>> +
>> +all: $(BINARIES)
>> +
>> +clean:
>> + $(RM) $(BINARIES)
>> +
>> +CFLAGS += -O2 -g -std=gnu99 -Wall -I../../../../usr/include/
>> +LDLIBS += -lmount -I/usr/include/libmount
>> +
>> +$(BINARIES): ../../../gpio/gpio-utils.o ../../../../usr/include/linux/gpio.h
>> +
>> +../../../gpio/gpio-utils.o:
>> + make ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) -C ../../../gpio
>> +
>> +../../../../usr/include/linux/gpio.h:
>> + make -C ../../../.. headers_install INSTALL_HDR_PATH=$(shell pwd)/../../../../usr/
>> +
>> diff --git a/tools/testing/selftests/gpio/gpio-mockup-chardev.c b/tools/testing/selftests/gpio/gpio-mockup-chardev.c
>> new file mode 100644
>> index 0000000..667e916
>> --- /dev/null
>> +++ b/tools/testing/selftests/gpio/gpio-mockup-chardev.c
>> @@ -0,0 +1,324 @@
>> +/*
>> + * GPIO chardev test helper
>> + *
>> + * Copyright (C) 2016 Bamvor Jian Zhang
>> + *
>> + * This program is free software; you can redistribute it and/or modify it
>> + * under the terms of the GNU General Public License version 2 as published by
>> + * the Free Software Foundation.
>> + */
>> +
>> +#define _GNU_SOURCE
>> +#include <unistd.h>
>> +#include <stdio.h>
>> +#include <stdlib.h>
>> +#include <stdio.h>
>> +#include <errno.h>
>> +#include <string.h>
>> +#include <fcntl.h>
>> +#include <getopt.h>
>> +#include <sys/ioctl.h>
>> +#include <libmount.h>
>> +#include <err.h>
>> +#include <dirent.h>
>> +#include <linux/gpio.h>
>> +#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;
>> +
>> + 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)
>> + asprintf(path, "%s/gpio", mnt_fs_get_target(fs));
>> +
>> + 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;
>> +}
>> diff --git a/tools/testing/selftests/gpio/gpio-mockup-sysfs.sh b/tools/testing/selftests/gpio/gpio-mockup-sysfs.sh
>> new file mode 100755
>> index 0000000..085d7a3
>> --- /dev/null
>> +++ b/tools/testing/selftests/gpio/gpio-mockup-sysfs.sh
>> @@ -0,0 +1,134 @@
>> +
>> +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
>> +
>> + if [ $active_low_sysfs = "1" ]; then
>> + if [ $val = "0" ]; then
>> + val="1"
>> + else
>> + val="0"
>> + fi
>> + fi
>> +
>> + if [ $val_sysfs = $val ] && [ $dir_sysfs = $dir_debugfs ]; then
>> + echo -n "."
>> + else
>> + echo "test fail, exit"
>> + die
>> + fi
>> +}
>> +
>> +test_pin_logic()
>> +{
>> + nr=$1
>> + direction=$2
>> + active_low=$3
>> + value=$4
>> +
>> + 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
>> +}
>> +
>> +test_one_pin()
>> +{
>> + 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"
>> +}
>> +
>> +test_one_pin_fail()
>> +{
>> + 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
>> +}
>> +
>> +list_chip()
>> +{
>> + echo `ls -d $GPIO_DRV_SYSFS/gpiochip* 2>/dev/null`
>> +}
>> +
>> +test_chip()
>> +{
>> + 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 ))
>> +}
>> +
>> +test_chips_sysfs()
>> +{
>> + 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
>> +}
>> +
>> diff --git a/tools/testing/selftests/gpio/gpio-mockup.sh b/tools/testing/selftests/gpio/gpio-mockup.sh
>> new file mode 100755
>> index 0000000..b183439
>> --- /dev/null
>> +++ b/tools/testing/selftests/gpio/gpio-mockup.sh
>> @@ -0,0 +1,201 @@
>> +#!/bin/bash
>> +
>> +#exit status
>> +#1: run as non-root user
>> +#2: sysfs/debugfs not mount
>> +#3: insert module fail when gpio-mockup is a module.
>> +#4: other reason.
>> +
>> +SYSFS=
>> +GPIO_SYSFS=
>> +GPIO_DRV_SYSFS=
>> +DEBUGFS=
>> +GPIO_DEBUGFS=
>> +dev_type=
>> +module=
>> +
>> +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"
>> +}
>> +
>> +prerequisite()
>> +{
>> + msg="skip all tests:"
>> + if [ $UID != 0 ]; then
>> + echo $msg must be run as root >&2
>> + exit 1
>> + 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 $DEBUGFS/gpio`
>> + source gpio-mockup-sysfs.sh
>> +}
>> +
>> +try_insert_module()
>> +{
>> + if [ -d "$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
>> +}
>> +
>> +remove_module()
>> +{
>> + modprobe -r -q $module
>> +}
>> +
>> +die()
>> +{
>> + remove_module
>> + exit 4
>> +}
>> +
>> +test_chips()
>> +{
>> + if [ X$dev_type = Xsysfs ]; then
>> + echo "WARNING: sysfs ABI of gpio is going to deprecated."
>> + test_chips_sysfs $*
>> + else
>> + $BASE/gpio-mockup-chardev $*
>> + fi
>> +}
>> +
>> +gpio_test()
>> +{
>> + param=$1
>> + valid=$2
>> +
>> + if [ X"$param" = X ]; then
>> + die
>> + 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`
>> +
>> +dev_type=
>> +TEMP=`getopt -o fhm:t: -n '$0' -- "$@"`
>> +
>> +if [ "$?" != "0" ]; then
>> + echo "Parameter process failed, Terminating..." >&2
>> + exit 1
>> +fi
>> +
>> +# Note the quotes around `$TEMP': they are essential!
>> +eval set -- "$TEMP"
>> +
>> +while true; do
>> + case $1 in
>> + -f)
>> + full_test=true
>> + shift
>> + ;;
>> + -h)
>> + usage
>> + exit
>> + ;;
>> + -m)
>> + module=$2
>> + shift 2
>> + ;;
>> + -t)
>> + dev_type=$2
>> + shift 2
>> + ;;
>> + --)
>> + shift
>> + break
>> + ;;
>> + *)
>> + echo "Internal error!"
>> + exit 1
>> + ;;
>> + esac
>> +done
>> +
>> +if [ X"$module" = X ]; then
>> + module="gpio-mockup"
>> +fi
>> +
>> +if [ X$dev_type != Xsysfs ]; then
>> + dev_type="chardev"
>> +fi
>> +
>> +prerequisite
>> +
>> +echo "1. Test dynamic allocation of gpio successful means insert gpiochip and"
>> +echo " manipulate gpio pin successful"
>> +gpio_test "-1,32" true
>> +gpio_test "-1,32,-1,32" true
>> +gpio_test "-1,32,-1,32,-1,32" true
>> +if [ X$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
>> +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
>> +fi
>> +
>> +echo GPIO test PASS
>> +
>>
>
>
>
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Re: [PATCH v5] selftest/gpio: add gpio test case
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- Subject: Re: [PATCH v5] selftest/gpio: add gpio test case
- From: Shuah Khan <shuah@xxxxxxxxxx>
- Date: Tue, 13 Dec 2016 07:33:12 -0700
- In-reply-to: <8d50fbdd-f17b-fae2-14dd-80da9fac0a48@huawei.com>
- References: <7e8cac40-ccf1-d4c3-5a08-09969b273b11@osg.samsung.com> <1479723371-5489-1-git-send-email-bamvor.zhangjian@huawei.com> <8d50fbdd-f17b-fae2-14dd-80da9fac0a48@huawei.com>
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- References:
- Re: [PATCH v4 3/3] selftest/gpio: add gpio test case
- From: Shuah Khan
- [PATCH v5] selftest/gpio: add gpio test case
- From: bamvor.zhangjian
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- From: Zhangjian (Bamvor)
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