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/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
#include "gfx.h"
#if (GFX_USE_GINPUT && GINPUT_NEED_MOUSE) /*|| defined(__DOXYGEN__)*/
#include "src/ginput/driver_mouse.h"
#include "ginput_lld_mouse_board.h"
static uint16_t sampleBuf[7];
static void filter(void) {
uint16_t temp;
int i,j;
for(i = 0; i < 4; i++) {
for(j = i; j < 7; j++) {
if(sampleBuf[i] > sampleBuf[j]) {
/* Swap the values */
temp = sampleBuf[i];
sampleBuf[i] = sampleBuf[j];
sampleBuf[j] = temp;
}
}
}
}
void ginput_lld_mouse_init(void) {
init_board();
}
void ginput_lld_mouse_get_reading(MouseReading *pt) {
uint16_t i;
// Obtain access to the bus
aquire_bus();
// Read the ADC for z, x, y and then z again
while(1) {
setup_z();
for(i = 0; i < 7; i++)
sampleBuf[i] = read_z();
filter();
pt->z = (coord_t)sampleBuf[3];
setup_x();
for(i = 0; i < 7; i++)
sampleBuf[i] = read_x();
filter();
pt->x = (coord_t)sampleBuf[3];
setup_y();
for(i = 0; i < 7; i++)
sampleBuf[i] = read_y();
filter();
pt->y = (coord_t)sampleBuf[3];
pt->buttons = pt->z >= 80 ? GINPUT_TOUCH_PRESSED : 0;
setup_z();
for(i = 0; i < 7; i++)
sampleBuf[i] = read_z();
filter();
i = (coord_t)sampleBuf[3] >= 80 ? GINPUT_TOUCH_PRESSED : 0;
if (pt->buttons == i)
break;
}
// Release the bus
release_bus();
}
#endif /* GFX_USE_GINPUT && GINPUT_NEED_MOUSE */
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