rtl-433-openwrt/utils/rtl-433/files/rtl_433.init at master · flux242/rtl-433-openwrt · GitHub

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#!/bin/sh /etc/rc.common

START=99
USE_PROCD=1

PROG=/usr/bin/rtl_433

append_arg() {
	local cfg="$1"
	local var="$2"
	local opt="$3"
	local def="$4"
	local val

	config_get val "$cfg" "$var"
	[ -n "$val" -o -n "$def" ] && procd_append_param command "$opt" "${val:-$def}"
}

append_bool() {
	local cfg="$1"
	local var="$2"
	local opt="$3"
	local def="$4"
	local val

	config_get_bool val "$cfg" "$var" "$def"
	[ "$val" = 1 ] && procd_append_param command "$opt"
}

append_list() {
	local cfg="$1"
	local var="$2"
	local opt="$3"
	local vals entry

	config_get vals "$cfg" "$var"
	[ -n "$vals" ] && {
		for entry in $vals; do
			procd_append_param command "$opt" "$entry"
		done
	}
}

validate_rtl_433_section()
{
        uci_validate_section "rtl_433" "rtl_433" "${1}" \
		'enabled:bool' \
		'runtime:uinteger' \
		'respawn_interval:uinteger' \
		'device:string' \
		'gain:float' \
		'frequencies:uinteger' \
		'hop_time:uinteger' \
		'ppm_error:uinteger' \
		'sample_rate:uinteger' \
		'demodulators:uinteger' \
		'level:float' \
		'short_value:uinteger' \
		'long_value:uinteger' \
		'samples:uinteger' \
		'units:or("si", "native", "customary")' \
		'utc:bool' \
		'output:string'

	return $?
}

load_rtl_433() {
	local cfg="$1"
	local enabled
	local respawn_interval=3540

	validate_rtl_433_section "$cfg" || { echo "validation failed"; return 1; }

	config_get enabled "$cfg" enabled
	[ "$enabled" = "1" ] || return 1

	config_get cfg_respawn_interval "$cfg" respawn_interval
	[ -n "$cfg_respawn_interval" ] && respawn_interval="$cfg_respawn_interval"

	procd_open_instance
	procd_set_param command "$PROG" -q

#	append_arg  "$cfg" runtime "-T" "60"
	append_arg  "$cfg" runtime "-T"

#	Tuner options
	append_arg  "$cfg" device "-d"
	append_arg  "$cfg" gain "-g"
	append_list "$cfg" frequencies "-f"
	append_arg  "$cfg" hop_time "-h"
	append_arg  "$cfg" ppm_error "-p"
	append_arg  "$cfg" sample_rate "-s"
#	Demodulator options
	append_list "$cfg" demodulators "-R"
	append_arg  "$cfg" level "-l"
	append_arg  "$cfg" short_value "-z"
	append_arg  "$cfg" long_value "-x"
	append_arg  "$cfg" samples "-n"
#	File I/O options
	append_arg  "$cfg" units "-C"
	append_bool "$cfg" utc "-U"
	append_list "$cfg" output "-F"

	procd_set_param stdout 1
	procd_set_param stderr 0

	procd_set_param respawn 0 $respawn_interval 0
	procd_close_instance
}

start_service() {
	config_load "rtl_433"
	config_foreach load_rtl_433 "rtl_433"
}

service_triggers() {
	procd_add_reload_trigger "rtl_433"

	procd_open_validate
	validate_rtl_433_section
	procd_close_validate
}