#!/usr/bin/ruby
# ubx-set.rb - Utility to set Almanac and Ephemeris data for u-blox GPS
# receivers
#
# Copyright 2008 OpenMoko, Inc.
# Authored by Daniel Willmann <daniel@openmoko.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

gem_original_require 'serialport'

require 'ubx-config'

device = SerialPort.new(ARGV[0], baudrate=9600, databits=8, stopbits=1, parity=SerialPort::NONE)
device.read_timeout=-1
fd = File.open(ARGV[1], 'r')

worker = Thread.new() {
	stream = []
	while true
		begin
			stream << device.getc
			(msg, len) = Message.parse(stream.map {|i| i.chr}.to_s)
			if msg
				puts msg.to_a.inspect
			end
			stream = stream[len..-1]
		rescue
			puts "An error occurred: #{$!}"
			stream = [ ]
		end
	end
}

sleep(2)

while !fd.eof?
	len = fd.read(2).unpack("v")[0]
	data = fd.read(len)
	msg = Marshal.load(data)
	puts msg.to_a.inspect
	device.write(msg.to_s)
	device.flush()
end

fd.close