/*------------------------------------------------------------------------------
--  This file is a part of the libuc, microcontroler library
--  Copyright (C) 2013, Alexis Jeandet
--
--  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, write to the Free Software
--  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-------------------------------------------------------------------------------
--                 Author : Alexis Jeandet
--                   Mail : alexis.jeandet@member.fsf.org
-------------------------------------------------------------------------------*/
#ifndef STMPE811_H
#define STMPE811_H
#include <stdio.h>
#include <genericTC_Controler.h>
#include <spi.h>

#define ADS7843_CONFIG_MASK     0x0F
#define ADS7843_MODE_8BITS      0x08
#define ADS7843_MODE_12BITS     0x00
#define ADS7843_REFMODE_SINGLE  0x04
#define ADS7843_REFMODE_DIFF    0x00
#define ADS7843_POWER_ADC_ON    0x01
#define ADS7843_POWER_ADC_OFF   0x00
#define ADS7843_POWER_REF_ON    0x02
#define ADS7843_POWER_REF_OFF   0x00
#define ADS7843_START           0x80
#define ADS7843_MEAS_X_POS      0x50
#define ADS7843_MEAS_Y_POS      0x10
#define ADS7843_MEAS_Z1_POS     0x30
#define ADS7843_MEAS_Z2_POS     0x40

#define ADS7843_MEAS_X_POS_SINGLE      (ADS7843_MEAS_X_POS |ADS7843_REFMODE_SINGLE)
#define ADS7843_MEAS_Y_POS_SINGLE      (ADS7843_MEAS_Y_POS |ADS7843_REFMODE_SINGLE)
#define ADS7843_MEAS_Z1_POS_SINGLE     (ADS7843_MEAS_Z1_POS|ADS7843_REFMODE_SINGLE)
#define ADS7843_MEAS_Z2_POS_SINGLE     (ADS7843_MEAS_Z2_POS|ADS7843_REFMODE_SINGLE)
#define ADS7843_MEAS_TEMP0_SINGLE      (    0x00           |ADS7843_REFMODE_SINGLE)
#define ADS7843_MEAS_TEMP1_SINGLE      (    0x70           |ADS7843_REFMODE_SINGLE)
#define ADS7843_MEAS_AUX_SINGLE        (    0x60           |ADS7843_REFMODE_SINGLE)
#define ADS7843_MEAS_VBAT_SINGLE       (    0x20           |ADS7843_REFMODE_SINGLE)
#define ADS7843_MEAS_Z2_POS_SINGLE     (ADS7843_MEAS_Z2_POS|ADS7843_REFMODE_SINGLE)

#define ADS7843_MEAS_X_POS_DIFF        (ADS7843_MEAS_X_POS |ADS7843_REFMODE_DIFF)
#define ADS7843_MEAS_Y_POS_DIFF        (ADS7843_MEAS_Y_POS |ADS7843_REFMODE_DIFF)
#define ADS7843_MEAS_Z1_POS_DIFF       (ADS7843_MEAS_Z1_POS|ADS7843_REFMODE_DIFF)
#define ADS7843_MEAS_Z2_POS_DIFF       (ADS7843_MEAS_Z2_POS|ADS7843_REFMODE_DIFF)

typedef struct ADS7843_t
{
 spi_t spidev;
 void (*setnCS)(char);
 int (*busy)();
 char config;
 uint16_t zeroX;
 uint16_t zeroY;
 uint16_t zeroRtouch;
 uint16_t xMin;
 uint16_t xMax;
 uint16_t yMin;
 uint16_t yMax;
 char    delta;
}ADS7843_t;


extern int ads7843init(ADS7843_t *dev, spi_t spidev,char config,void (*setnCS)(char),int (*busy)());
extern int ads7843read(ADS7843_t *dev,int* x,int* y);
extern int ads7843readRtouch(ADS7843_t *dev);
extern int ads7843calibrate(ADS7843_t *dev,uint16_t zeroX,uint16_t zeroY,uint16_t zeroRtouch,uint16_t xMin,uint16_t xMax,uint16_t yMin,uint16_t yMax,char    delta);
extern int ads7843isPenTouching(ADS7843_t *dev);



#endif