67 lines
997 B
C
67 lines
997 B
C
#ifndef TOUCHPAD_H
|
|
#define TOUCHPAD_H
|
|
|
|
#include "ch.h"
|
|
#include "hal.h"
|
|
#include "glcd.h"
|
|
#include "drivers/ads7843_lld.h"
|
|
|
|
#define CONVERSIONS 3
|
|
|
|
#define SET_CS(a) (TP_PORT->BSRR = 1 << (TP_CS + (a ? 0 : 16)))
|
|
|
|
struct cal {
|
|
float xm;
|
|
float ym;
|
|
float xn;
|
|
float yn;
|
|
};
|
|
|
|
/*
|
|
* Description: initializes touchpad (SPI)
|
|
*
|
|
* param: SPI driver
|
|
*
|
|
* return: none
|
|
*/
|
|
void tpInit(SPIDriver *spip);
|
|
|
|
/*
|
|
* Description: reads out PEN_IRQ from touchpad controller
|
|
*
|
|
* param: none
|
|
*
|
|
* return: 1 = touchpad pressed / 0 = touchpad not pressed
|
|
*/
|
|
uint8_t tpIRQ(void);
|
|
|
|
/*
|
|
* Description: reads-out X coordinate, calibrated
|
|
*
|
|
* param: none
|
|
*
|
|
* return: X coordinate, relative to screen zero-point
|
|
*/
|
|
uint16_t tpReadX(void);
|
|
|
|
/*
|
|
* Description: reads-out Y coordinate, calibrated
|
|
*
|
|
* param: none
|
|
*
|
|
* return: Y coordinate, relative to screen zero-point
|
|
*/
|
|
uint16_t tpReadY(void);
|
|
|
|
/*
|
|
* Description: calibration routine
|
|
*
|
|
* param: none
|
|
*
|
|
* return: none
|
|
*/
|
|
void tpCalibrate(void);
|
|
|
|
#endif
|
|
|