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