ft5x06.h

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/* 
 * Copyright (C) 2013 Andreas Misje
 *
 * This program 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
 * (at your option) any later version.
 *
 * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef FT5X06_H
#define FT5X06_H

#define FT5X06_I2C_ADDR 0x38

enum ft5x06_gesture {
   FT5X06_GESTURE_none     = 0x00,
   FT5X06_GESTURE_up       = 0x10,
   FT5X06_GESTURE_left     = 0x14,
   FT5X06_GESTURE_down     = 0x18,
   FT5X06_GESTURE_right    = 0x1c,
   FT5X06_GESTURE_zoomIn   = 0x48,
   FT5X06_GESTURE_zoomOut  = 0x49,
};

enum ft5x06_touchEvent
{
   FT5X06_EVENT_putDown    = 0,
   FT5X06_EVENT_putUp      = 1,
   FT5X06_EVENT_contact    = 2,
   FT5X06_EVENT_invalid    = 3,
};

struct touchCoor
{
   unsigned int x;
   unsigned int y;
   enum ft5x06_touchEvent event;
};

struct touchInfo
{
   unsigned char gesture;
   unsigned char numPoints;
   struct touchCoor points[ 5 ];
};

void ft5x06_queryTouchInfo( int numPoints );

enum ft5x06_retrieveTouchInfoRetVal
{
   FT5X06_RETTOUCH_OK               =  0,
   FT5X06_RETTOUCH_ERR_I2C_ERROR    =  1,
   FT5X06_RETTOUCH_NULL_ARG         =  2,
   FT5X06_RETTOUCH_ERR_NUM_POINTS   =  3,
   FT5X06_RETTOUCH_ERR_EVENT        =  4,
};

int ft5x06_retrieveTouchInfo( struct touchInfo *touchInfo );

#endif // FT5X06_H