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#!/bin/bash
U2_PRESENT_STATUS=( 1 1 1 1 1 1 1 1 )
U2_PRESENT=( 148 149 150 151 152 153 154 155 )
POWER_U2=( 195 196 202 199 198 197 127 126 )
PWRGD_U2=( 161 162 163 164 165 166 167 168 )
function set_gpio_direction(){
#$1 gpio pin, $2 'in','high','low'
echo $2 > /sys/class/gpio/gpio$1/direction
}
function read_present_set_related_power(){
#$1 read present number, $2 output power gpio
var="${U2_PRESENT_STATUS[$1]}"
# present 0 is plugged,present 1 is removal
if [ "$var" == "0" ];then
set_gpio_direction $2 "high"
else
set_gpio_direction $2 "low"
fi
}
function update_u2_status(){
#$1 read present gpio
var=$(cat /sys/class/gpio/gpio$2/value)
U2_PRESENT_STATUS[$1]="$var"
}
function check_present_and_powergood(){
#$2 present gpio, $3 powergood gpio
present=$(cat /sys/class/gpio/gpio$2/value)
pwrgd=$(cat /sys/class/gpio/gpio$3/value)
path=`expr $1`
if [ "$present" -eq 0 ] && [ "$pwrgd" -eq 1 ];then
busctl set-property xyz.openbmc_project.nvme.manager /xyz/openbmc_project/nvme/$path xyz.openbmc_project.Inventory.Item Present b true
else
busctl set-property xyz.openbmc_project.nvme.manager /xyz/openbmc_project/nvme/$path xyz.openbmc_project.Inventory.Item Present b false
if [ "$present" -eq "$pwrgd" ];then
#set fault led
busctl set-property xyz.openbmc_project.LED.GroupManager /xyz/openbmc_project/led/groups/led\_u2\_$1\_fault xyz.openbmc_project.Led.Group Asserted b true
else
busctl set-property xyz.openbmc_project.LED.GroupManager /xyz/openbmc_project/led/groups/led\_u2\_$1\_fault xyz.openbmc_project.Led.Group Asserted b false
fi
fi
}
##Initial U2 present status
for i in {0..7};
do
update_u2_status $i "${U2_PRESENT[$i]}"
done
## Loop while
while :
do
for i in {0..7};
do
## 1 scend scan all loop
sleep 0.125
read=$(cat /sys/class/gpio/gpio${U2_PRESENT[$i]}/value)
if [ "${U2_PRESENT_STATUS[$1]}" != read ];then
update_u2_status $i "${U2_PRESENT[$i]}"
read_present_set_related_power $i "${POWER_U2[$i]}"
check_present_and_powergood $i "${U2_PRESENT[$i]}" "${POWER_U2[$i]}"
fi
done
done
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