/*

SDL - Simple DirectMedia Layer

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Library General Public

License as published by the Free Software Foundation; either

version 2 of the License, or (at your option) any later version.

This library 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

Library General Public License for more details.

You should have received a copy of the GNU Library General Public

License along with this library; if not, write to the Free

Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Sam Lantinga

*/

#ifdef SAVE_RCSID

static char rcsid =

"@(#) $Id$";

#endif

#ifndef SDL_fbelo_h

#define SDL_fbelo_h

#include <stdlib.h>

#include "SDL_fbvideo.h"

/* ELO */

#define ELO_PACKET_SIZE 10

#define ELO_START_BYTE 'U'

/* eloConvertXY

Convert the raw coordinates from the ELO controller

to a screen position.

*/

void eloConvertXY(_THIS, int *dx, int *dy);

/* eloInitController(int fd)

Initialize the ELO serial touchscreen controller

*/

int eloInitController(int fd);

/* eloParsePacket

extract position and button state from a packet

*/

int eloParsePacket(unsigned char* mousebuf, int* dx, int* dy, int* button_state);

/* eloReadPosition

read a packet and get the cursor position

*/

int eloReadPosition(_THIS, int fd, int* x, int* y, int* button_state, int* realx, int* realy);