/*
 *  spreadspace avr utils
 *
 *
 *  Copyright (C) 2013 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 "util.h"
#include "led.h"

/*
             LUFA Library
     Copyright (C) Dean Camera, 2012.

  dean [at] fourwalledcubicle [dot] com
           www.lufa-lib.org
*/
#include <LUFA/Version.h>
#include <LUFA/Drivers/USB/USB.h>
#include "lufa-descriptor-rndis.h"

/** LUFA RNDIS Class driver interface configuration and state information. This structure is
 *  passed to all RNDIS Class driver functions, so that multiple instances of the same class
 *  within a device can be differentiated from one another.
 */
USB_ClassInfo_RNDIS_Device_t Ethernet_RNDIS_Interface =
  {
    .Config =
      {
        .ControlInterfaceNumber         = 0,

        .DataINEndpointNumber           = CDC_TX_EPNUM,
        .DataINEndpointSize             = CDC_TXRX_EPSIZE,
        .DataINEndpointDoubleBank       = false,

        .DataOUTEndpointNumber          = CDC_RX_EPNUM,
        .DataOUTEndpointSize            = CDC_TXRX_EPSIZE,
        .DataOUTEndpointDoubleBank      = false,

        .NotificationEndpointNumber     = CDC_NOTIFICATION_EPNUM,
        .NotificationEndpointSize       = CDC_NOTIFICATION_EPSIZE,
        .NotificationEndpointDoubleBank = false,

        .AdapterVendorDescription       = "LUFA RNDIS Demo Adapter",
        .AdapterMACAddress              = {{0x02, 0x00, 0x02, 0x00, 0x02, 0x00}},
      },
  };

/** Event handler for the library USB Configuration Changed event. */
void EVENT_USB_Device_ConfigurationChanged(void)
{
  RNDIS_Device_ConfigureEndpoints(&Ethernet_RNDIS_Interface);
}

/** Event handler for the library USB Control Request reception event. */
void EVENT_USB_Device_ControlRequest(void)
{
  RNDIS_Device_ProcessControlRequest(&Ethernet_RNDIS_Interface);
}

/* end LUFA RNDIS Class driver specific definitions*/

uint8_t recv_buf[1514];

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

  cpu_init();
  led_init();
  USB_Init();
  sei();

  led_off();
  for (;;) {
    if (RNDIS_Device_IsPacketReceived(&Ethernet_RNDIS_Interface))
    {
      led_on();
      uint16_t len = sizeof(recv_buf);
      RNDIS_Device_ReadPacket(&Ethernet_RNDIS_Interface, &recv_buf, &len);
      led_off();
    }
    
    RNDIS_Device_USBTask(&Ethernet_RNDIS_Interface);
    USB_USBTask();
  }
}