1 #!/bin/bash 2 # SPDX-License-Identifier: GPL-2.0 3 4 #exit status 5 #1: run as non-root user 6 #2: sysfs/debugfs not mount 7 #3: insert module fail when gpio-mockup is a module. 8 #4: other reason. 9 10 SYSFS= 11 GPIO_SYSFS= 12 GPIO_DRV_SYSFS= 13 DEBUGFS= 14 GPIO_DEBUGFS= 15 dev_type= 16 module= 17 18 usage() 19 { 20 echo "Usage:" 21 echo "$0 [-f] [-m name] [-t type]" 22 echo "-f: full test. It maybe conflict with existence gpio device." 23 echo "-m: module name, default name is gpio-mockup. It could also test" 24 echo " other gpio device." 25 echo "-t: interface type: chardev(char device) and sysfs(being" 26 echo " deprecated). The first one is default" 27 echo "" 28 echo "$0 -h" 29 echo "This usage" 30 } 31 32 prerequisite() 33 { 34 msg="skip all tests:" 35 if [ $UID != 0 ]; then 36 echo $msg must be run as root >&2 37 exit 1 38 fi 39 SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'` 40 if [ ! -d "$SYSFS" ]; then 41 echo $msg sysfs is not mounted >&2 42 exit 2 43 fi 44 GPIO_SYSFS=`echo $SYSFS/class/gpio` 45 GPIO_DRV_SYSFS=`echo $SYSFS/devices/platform/$module/gpio` 46 DEBUGFS=`mount -t debugfs | head -1 | awk '{ print $3 }'` 47 if [ ! -d "$DEBUGFS" ]; then 48 echo $msg debugfs is not mounted >&2 49 exit 2 50 fi 51 GPIO_DEBUGFS=`echo $DEBUGFS/gpio` 52 source gpio-mockup-sysfs.sh 53 } 54 55 try_insert_module() 56 { 57 if [ -d "$GPIO_DRV_SYSFS" ]; then 58 echo "$GPIO_DRV_SYSFS exist. Skip insert module" 59 else 60 modprobe -q $module $1 61 if [ X$? != X0 ]; then 62 echo $msg insmod $module failed >&2 63 exit 3 64 fi 65 fi 66 } 67 68 remove_module() 69 { 70 modprobe -r -q $module 71 } 72 73 die() 74 { 75 remove_module 76 exit 4 77 } 78 79 test_chips() 80 { 81 if [ X$dev_type = Xsysfs ]; then 82 echo "WARNING: sysfs ABI of gpio is going to deprecated." 83 test_chips_sysfs $* 84 else 85 $BASE/gpio-mockup-chardev $* 86 fi 87 } 88 89 gpio_test() 90 { 91 param=$1 92 valid=$2 93 94 if [ X"$param" = X ]; then 95 die 96 fi 97 try_insert_module "gpio_mockup_ranges=$param" 98 echo -n "GPIO $module test with ranges: <" 99 echo "$param>: " 100 printf "%-10s %s\n" $param 101 test_chips $module $valid 102 remove_module 103 } 104 105 BASE=`dirname $0` 106 107 dev_type= 108 TEMP=`getopt -o fhm:t: -n '$0' -- "$@"` 109 110 if [ "$?" != "0" ]; then 111 echo "Parameter process failed, Terminating..." >&2 112 exit 1 113 fi 114 115 # Note the quotes around `$TEMP': they are essential! 116 eval set -- "$TEMP" 117 118 while true; do 119 case $1 in 120 -f) 121 full_test=true 122 shift 123 ;; 124 -h) 125 usage 126 exit 127 ;; 128 -m) 129 module=$2 130 shift 2 131 ;; 132 -t) 133 dev_type=$2 134 shift 2 135 ;; 136 --) 137 shift 138 break 139 ;; 140 *) 141 echo "Internal error!" 142 exit 1 143 ;; 144 esac 145 done 146 147 if [ X"$module" = X ]; then 148 module="gpio-mockup" 149 fi 150 151 if [ X$dev_type != Xsysfs ]; then 152 dev_type="chardev" 153 fi 154 155 prerequisite 156 157 echo "1. Test dynamic allocation of gpio successful means insert gpiochip and" 158 echo " manipulate gpio pin successful" 159 gpio_test "-1,32" true 160 gpio_test "-1,32,-1,32" true 161 gpio_test "-1,32,-1,32,-1,32" true 162 if [ X$full_test = Xtrue ]; then 163 gpio_test "-1,32,32,64" true 164 gpio_test "-1,32,40,64,-1,5" true 165 gpio_test "-1,32,32,64,-1,32" true 166 gpio_test "0,32,32,64,-1,32,-1,32" true 167 gpio_test "-1,32,-1,32,0,32,32,64" true 168 echo "2. Do basic test: successful means insert gpiochip and" 169 echo " manipulate gpio pin successful" 170 gpio_test "0,32" true 171 gpio_test "0,32,32,64" true 172 gpio_test "0,32,40,64,64,96" true 173 fi 174 echo "3. Error test: successful means insert gpiochip failed" 175 echo "3.1 Test number of gpio overflow" 176 #Currently: The max number of gpio(1024) is defined in arm architecture. 177 gpio_test "-1,32,-1,1024" false 178 if [ X$full_test = Xtrue ]; then 179 echo "3.2 Test zero line of gpio" 180 gpio_test "0,0" false 181 echo "3.3 Test range overlap" 182 echo "3.3.1 Test corner case" 183 gpio_test "0,32,0,1" false 184 gpio_test "0,32,32,64,32,40" false 185 gpio_test "0,32,35,64,35,45" false 186 gpio_test "0,32,31,32" false 187 gpio_test "0,32,32,64,36,37" false 188 gpio_test "0,32,35,64,34,36" false 189 echo "3.3.2 Test inserting invalid second gpiochip" 190 gpio_test "0,32,30,35" false 191 gpio_test "0,32,1,5" false 192 gpio_test "10,32,9,14" false 193 gpio_test "10,32,30,35" false 194 echo "3.3.3 Test others" 195 gpio_test "0,32,40,56,39,45" false 196 gpio_test "0,32,40,56,30,33" false 197 gpio_test "0,32,40,56,30,41" false 198 gpio_test "0,32,40,56,20,21" false 199 fi 200 201 echo GPIO test PASS 202 203
