/* $Id: spi.h,v 1.1 2011-01-18 12:42:42 moellmer Exp $

   Paparazzi fbw spi functions

   Copyright (C) 2003 Pascal Brisset, Antoine Drouin

   This file is part of paparazzi.

   paparazzi 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, or (at your option)
   any later version.

   paparazzi 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 paparazzi; see the file COPYING.  If not, write to
   the Free Software Foundation, 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.

*/

#ifndef SPI_H
#define SPI_H

#include "link_autopilot.h"


#define SPI_PORT   PORTB
#define SPI_PIN    PINB
#define SPI_SS_PIN 2

#define SpiIsSelected() (bit_is_clear(SPI_PIN, SPI_SS_PIN))

extern struct inter_mcu_msg from_mega128;
extern struct inter_mcu_msg to_mega128;
extern volatile bool_t mega128_receive_valid;
extern volatile bool_t spi_was_interrupted;


void spi_init( void );
void spi_reset( void );


#endif /* SPI_H */
