/*
 *  spreadspace avr utils
 *
 *
 *  Copyright (C) 2013-2014 Christian Pointner <equinox@spreadspace.org>
 *
 *  This file is part of spreadspace avr utils.
 *
 *  spreadspace avr utils 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 3 of the License, or
 *  any later version.
 *
 *  spreadspace avr utils 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 spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
 */


#include <avr/io.h>
#include <avr/wdt.h>
#include <avr/interrupt.h>
#include <avr/power.h>
#include <stdio.h>

#include "util.h"
#include "led.h"
#include "dualusbio.h"

void handle_cmd1(uint8_t cmd)
{
  switch(cmd) {
  case '0': led_off(); break;
  case '1': led_on(); break;
  case 't': led_toggle(); break;
  default: fprintf(&usbio_port1, "1: error\r\n"); return;
  }
  fprintf(&usbio_port1, "1: ok\r\n");
}

void handle_cmd2(uint8_t cmd)
{
  switch(cmd) {
  case '0': led_on(); break;
  case '1': led_off(); break;
  case 't': led_toggle(); break;
  default: fprintf(&usbio_port2, "2: error\r\n"); return;
  }
  fprintf(&usbio_port2, "2: ok\r\n");
}

int main(void)
{
  MCUSR &= ~(1 << WDRF);
  wdt_disable();

  cpu_init();
  led_init();
  dualusbio_init();
  sei();

  for(;;) {
    int16_t BytesReceived = dualusbio_bytes_received(1);
    while(BytesReceived > 0) {
      int ReceivedByte = fgetc(&usbio_port1);
      if(ReceivedByte != EOF) {
        handle_cmd1(ReceivedByte);
      }
      BytesReceived--;
    }

    BytesReceived = dualusbio_bytes_received(2);
    while(BytesReceived > 0) {
      int ReceivedByte = fgetc(&usbio_port2);
      if(ReceivedByte != EOF) {
        handle_cmd2(ReceivedByte);
      }
      BytesReceived--;
    }

    dualusbio_task();
  }
}