mirror of
https://github.com/open-sdr/openwifi.git
synced 2024-12-22 23:12:49 +00:00
46 lines
1.4 KiB
Bash
Executable File
46 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
# Reads RSSI in dB from RX1, let's call it "r".
|
|
# Linear fit offset "o" depends on frequency (2.4GHz or 5GHz and FMCOMMS2/3).
|
|
# RSSI(dBm) = -r + o
|
|
# 2.4GHz(ch 6) FMCOMMS2: o = 16.74
|
|
# 2.4GHz(ch 6) FMCOMMS3: o = 17.44
|
|
# 5GHz (ch 44) FMCOMMS2: o = 25.41
|
|
# 5GHz (ch 44) FMCOMMS3: o = 24.58
|
|
|
|
home_dir=$(pwd)
|
|
|
|
#set -x
|
|
if test -f "/sys/bus/iio/devices/iio:device0/in_voltage0_rssi"; then
|
|
cd /sys/bus/iio/devices/iio:device0/
|
|
else if test -f "/sys/bus/iio/devices/iio:device1/in_voltage0_rssi"; then
|
|
cd /sys/bus/iio/devices/iio:device1/
|
|
else if test -f "/sys/bus/iio/devices/iio:device2/in_voltage0_rssi"; then
|
|
cd /sys/bus/iio/devices/iio:device2/
|
|
else if test -f "/sys/bus/iio/devices/iio:device3/in_voltage0_rssi"; then
|
|
cd /sys/bus/iio/devices/iio:device3/
|
|
else if test -f "/sys/bus/iio/devices/iio:device4/in_voltage0_rssi"; then
|
|
cd /sys/bus/iio/devices/iio:device4/
|
|
else
|
|
echo "Can not find in_voltage_rf_bandwidth!"
|
|
echo "Check log to make sure ad9361 driver is loaded!"
|
|
exit 1
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
#set +x
|
|
|
|
if [ $# -lt 1 ]; then
|
|
cat in_voltage0_rssi
|
|
else
|
|
num_read=$1
|
|
for ((i=0;i<$num_read;i++))
|
|
do
|
|
rssi_str=$(cat in_voltage0_rssi)
|
|
echo "${rssi_str//dB}"
|
|
done
|
|
fi
|
|
cd $home_dir
|