1/*
2    SDL - Simple DirectMedia Layer
3    Copyright (C) 1997-2012 Sam Lantinga
4
5    This library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9
10    This library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Lesser General Public License for more details.
14
15    You should have received a copy of the GNU Lesser General Public
16    License along with this library; if not, write to the Free Software
17    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
18
19    Sam Lantinga
20    slouken@libsdl.org
21*/
22#include "SDL_config.h"
23
24#ifndef SDL_fbelo_h
25#define SDL_fbelo_h
26
27#include "SDL_fbvideo.h"
28
29/* ELO */
30#define ELO_PACKET_SIZE	10
31#define ELO_START_BYTE		'U'
32
33/*	eloConvertXY
34	Convert the raw coordinates from the ELO controller
35	to a screen position.
36*/
37void eloConvertXY(_THIS, int *dx,  int *dy);
38
39/*	eloInitController(int fd)
40	Initialize the ELO serial touchscreen controller
41*/
42int eloInitController(int fd);
43
44/*	eloParsePacket
45	extract position and button state from a packet
46*/
47int eloParsePacket(unsigned char* mousebuf, int* dx, int* dy, int* button_state);
48
49/*	eloReadPosition
50	read a packet and get the cursor position
51*/
52
53int eloReadPosition(_THIS, int fd, int* x, int* y, int* button_state, int* realx, int* realy);
54
55#endif	/* SDL_fbelo_h */
56