#!/bin/sh
# -*- coding: us-ascii -*-
# vim:ts=4:sw=4:softtabstop=4:smarttab:expandtab
# try and keep this pure bourne shell
# minimal clone of raspberry tool vcgencmd
# for use with Android rpicheck on;
#   Generic Linux, Armbian, Odroid, Pine64, Rock64 and other SBCs
# Does not fully implement Raspberry Pi version, silently exits
# on unhandled parameters. See README.md for debugging tips.

command=$1
case ${1} in
    measure_clock)
        case ${2} in
            arm)
                # awk is probably overkill....
                value=`cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq | awk '{print $1 * 1000}'`
                echo 'frequency(45)='${value}
                exit
            ;;
            core)
                value=0  # TODO / FIXME
                echo 'frequency(1)='${value}
                exit
            ;;
        # TODO anything else thrown an error/debug
        esac
        exit
        ;;
    measure_temp)
        # awk is probably overkill....
        value=`cat /sys/class/thermal/thermal_zone0/temp | awk '{printf "%.3f\n", $1 / 1000}'`
        # NOTE RasPi Check expects floating point result, integer result displays as 0 degrees in RasPi Check v1.8.12
        echo 'temp='${value}"'C"
        exit
        ;;
    measure_volts)
        case ${2} in
            core)
                value=0  # TODO / FIXME
                echo 'volt='${value}'.0000V'
                exit
            ;;
        # TODO anything else thrown an error/debug
        esac
        ;;
    version)
        # kern will pobably get truncated in raspicheck output
        # appears to trucate about 31 characters
        # but will truncate first word and not the end two?
        kern=`uname -r|sed 's/-/_/'`
        arch=`uname -i`
        board=`grep BOARD= /etc/*elease* |head -1 |cut -d= -f2`
        echo 'Nov  4 2018 16:31:07'
        echo 'Copyright (c) 2020 clach04'
        #echo 'version rock64_TODO (clean) (release)'

        # custom format, to get something useful out
        #echo "version ${kern} (${arch}) (${board})"
        echo "version ${kern} (${arch})"
        exit
        ;;
esac