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# Copyright 2014-present Facebook. All Rights Reserved.
DEVMEM=/sbin/devmem
devmem_set_bit() {
local addr
local val
addr=$1
val=$($DEVMEM $addr)
val=$((val | (0x1 << $2)))
$DEVMEM $addr 32 $val
}
devmem_clear_bit() {
local addr
local val
addr=$1
val=$($DEVMEM $addr)
val=$((val & ~(0x1 << $2)))
$DEVMEM $addr 32 $val
}
scu_addr() {
echo $((0x1E6E2000 + 0x$1))
}
GPIODIR="/sys/class/gpio"
GPIOEXPORT="$GPIODIR/export"
gpio_dir() {
echo "$GPIODIR/gpio$1"
}
gpio_name2value() {
local first remaining base val
remaining=$1
val=0
while [ -n "$remaining" ]; do
first=${remaining:0:1}
case "$first" in
[[:lower:]])
base=$(printf "%d" "'$first'")
base=$((base - 96))
val=$((val * 26 + base))
;;
[[:upper:]])
base=$(printf "%d" "'$first'")
base=$((base - 64))
val=$((val * 26 + base))
;;
*)
if [ $val -gt 0 ]; then
val=$((val-1))
fi
val=$((val * 8 + $remaining))
break
;;
esac
remaining=${remaining:1}
done
echo "$val"
}
gpio_export() {
local gpio
gpio=$(gpio_name2value $1)
dir=$(gpio_dir $gpio)
if [ ! -d ${dir} ]; then
echo $gpio > $GPIOEXPORT
fi
}
gpio_set() {
local gpio
local val
gpio=$(gpio_name2value $1)
val=$2
dir=$(gpio_dir $gpio)
if [ ! -d ${dir} ]; then
echo $gpio > $GPIOEXPORT
fi
echo out > ${dir}/direction
echo $val > ${dir}/value
}
gpio_get() {
local gpio
local val
gpio=$(gpio_name2value $1)
dir=$(gpio_dir $gpio)
if [ ! -d ${dir} ]; then
echo $gpio > $GPIOEXPORT
fi
echo in > ${dir}/direction
cat ${dir}/value
}
# Check to see if BMC power-on-reset
is_bmc_por() {
local val
# Read the Watch Dog Counter
val=$(devmem 0x1e785010 2>/dev/null)
if [ "$((val & 0xff00))" == "0" ]; then
# Power ON Reset
echo 1
else
echo 0
fi
}
# Check to see if server is present in given slot or not
is_server_prsnt() {
local prsnt
case $1 in
1)
prsnt=$(gpio_get H5)
;;
2)
prsnt=$(gpio_get H4)
;;
3)
prsnt=$(gpio_get H7)
;;
4)
prsnt=$(gpio_get H6)
;;
*)
prsnt=$(gpio_get H4)
;;
esac
if [ $prsnt == "0" ]; then
echo 1
else
echo 0
fi
}
yosemite_is_server_on() {
local curr_pwr_cpu
curr_pwr_cpu=$(python -c 'import sys; sys.path.append("/usr/local/fbpackages/utils"); import power_util; print power_util.get_pwr_cpu()')
if [ $curr_pwr_cpu == "1" ]; then
echo 1
else
echo 0
fi
}
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