| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997-2009 Sam Lantinga |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with this library; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| |
| Sam Lantinga |
| slouken@libsdl.org |
| */ |
| #include "SDL_config.h" |
| |
| #ifndef SDL_fbelo_h |
| #define SDL_fbelo_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); |
| |
| #endif /* SDL_fbelo_h */ |
