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#!/bin/bash
#
# Power Control tool
# Enable/disable AC relay
# On/off System by step moter to press power key
export PATH=$PATH:/usr/sbin:/usr/libexec
DELAY_POWER_ON="0.5"
DELAY_POWER_OFF="5"
POWER_BTN_TIMEOUT_CNT=60
#Switch pull low while it be touched
function wait_for_switch() {
TARGET_PIN=$1
TARGET_SWITCH=1
TIME_CNT=0
while [ "$TARGET_SWITCH" -eq 1 ] ;do
TARGET_SWITCH=$(get_gpio "$TARGET_PIN")
sleep 0.1
TIME_CNT=$(( TIME_CNT +1))
if [ $TIME_CNT -gt $POWER_BTN_TIMEOUT_CNT ];then
echo "Error: Too long to get target switch, force exit" >&2
break
fi
done
}
function trigger_power_button() {
local sled_num=$1
local delay_time=$2
#SLED{N}_MS_DETECT1 (initial position)
GPIO_DETECT_PIN1="SLED${sled_num}_MS_DETECT1"
#SLED{N}_MS_DETECT0 (MAC position)
GPIO_DETECT_PIN0="SLED${sled_num}_MS_DETECT0"
echo "Motor go forward to press Power key"
motor-ctrl "sled${sled_num}" f >/dev/null
wait_for_switch "${GPIO_DETECT_PIN0}"
motor-ctrl "sled${sled_num}" s >/dev/null
if [ "$(get_gpio "$GPIO_DETECT_PIN0")" -eq 0 ];then
echo "Power key switch triggered"
echo "Press power key for Sled${1} ${delay_time} seconds..."
sleep "$delay_time"
else
echo "Power key switch not trigger, back motor to initail position"
fi
motor-ctrl "sled${sled_num}" r >/dev/null
wait_for_switch "${GPIO_DETECT_PIN1}"
motor-ctrl "sled${sled_num}" s >/dev/null
if [ "$(get_gpio "$GPIO_DETECT_PIN1")" -eq 0 ];then
echo "Motor reverse to initial position successful"
else
echo "Initail position switch not trigger, force stop motor"
fi
}
#Get i2c bus number for sledN
function get_bus_num() {
SLED_NUM=$1
local bus=0
if [[ "$SLED_NUM" = [0-5] ]]; then
bus="$SLED_NUM"
fi
echo "$bus"
}
function set_gpio()
{
NET_NAME=$1
OUT_VAL=$2
mapfile -t -d " " GPIO_INFO < <(gpiofind "$NET_NAME")
if [ "${#GPIO_INFO[@]}" -ne 2 ]; then
echo "set_gpio: can not find gpio, $NET_NAME"
return 1
fi
echo -n "set_gpio: set $NET_NAME = $OUT_VAL"
if ! gpioset "${GPIO_INFO[0]}" "${GPIO_INFO[1]%$'\n'}"="$OUT_VAL"; then
echo " failed"
return 1
fi
echo " success"
return 0
}
function get_gpio()
{
NET_NAME=$1
RET_VAL=2
mapfile -t -d " " GPIO_INFO < <(gpiofind "$NET_NAME")
if [ "${#GPIO_INFO[@]}" -ne 2 ]; then
echo "get_gpio: can not find gpio, $NET_NAME" >&2
return 1
fi
if ! RET_VAL=$(gpioget "${GPIO_INFO[0]}" "${GPIO_INFO[1]%$'\n'}") ; then
echo "get_gpio: get ${NET_NAME} failed" >&2
return 1
fi
echo "${RET_VAL}"
return 0
}
function get_ac_status(){
i2c_bus=$(get_bus_num "$1")
p1_output_reg=$(i2cget -f -y "$i2c_bus" 0x76 0x03)
p1_config_reg=$(i2cget -f -y "$i2c_bus" 0x76 0x07)
host_pwr="$(( (p1_output_reg & 0x80)>>7 ))"
is_output="$(( (~p1_config_reg & 0x80)>>7 ))"
if [ "$(( host_pwr & is_output ))" -eq 1 ];then
echo "AC on"
else
echo "AC off"
fi
}
function show_usage(){
echo "Usage: power-ctrl [sled0 | sled1 | sled2 | sled3 | sled4 | sled5] [on off ac-on ac-off status]"
echo " power-ctrl chassis-cycle"
}
if [ $# -eq 1 ]; then
if [ "$1" = "chassis-cycle" ];then
echo "chassis cycle...."
i2cset -y -f 12 0x11 0xd9 c
exit 0
else
echo "Invalid argument: [ $1 ]"
show_usage
exit 1;
fi
fi
if [ $# -gt 2 ]; then
echo "Too many arguments"
show_usage
exit 1;
fi
if [[ "$1" =~ ^(slot[0-5]{1})$ ]] || [[ "$1" =~ ^(sled[0-5]{1})$ ]]; then
SLED=$1
ACTION=$2
SLED_NUM=${SLED:4}
else
echo "invalid sled name: ${1}"
show_usage
exit 1;
fi
#Check if sled is present
SLED_PRESENT=$(get_gpio "presence-sled${SLED_NUM}")
if [ "$SLED_PRESENT" != 0 ];then
echo "${SLED} is not present!"
exit 1
fi
if [[ "$ACTION" == "on" ]]; then
echo "Power on ${SLED}"
trigger_power_button "$SLED_NUM" "$DELAY_POWER_ON"
elif [[ "$ACTION" == "off" ]];then
echo "Power off ${SLED}"
trigger_power_button "$SLED_NUM" "$DELAY_POWER_OFF"
elif [[ "$ACTION" == "status" ]];then
get_ac_status "$SLED_NUM"
#TODO : check or record Host(DC) power status
elif [[ "$ACTION" == "ac-on" ]];then
set_gpio "power-host${SLED_NUM}" 1
elif [[ "$ACTION" == "ac-off" ]];then
set_gpio "power-host${SLED_NUM}" 0
else
echo "Unknown action: [ ${ACTION} ]"
show_usage
fi
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