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42c73bfcf1
To be able to test the STMPE811 device driver in polling mode, variable `STMPE811_POLLING_MODE` is introduced. It is set to 0 by default and can be overriden by 1 to use the polling mode. The polling period can be controlled by the `STMPE811_POLLING_PERIOD` variable.
101 lines
2.4 KiB
C
101 lines
2.4 KiB
C
/*
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* Copyright (C) 2019 Inria
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup tests
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* @{
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*
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* @file
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* @brief Test application for the STMPE811 touchscreen controller
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*
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* @author Alexandre Abadie <alexandre.abadie@inria.fr>
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*
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* @}
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*/
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#include <stdio.h>
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#include "mutex.h"
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#include "stmpe811.h"
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#include "stmpe811_params.h"
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#if IS_ACTIVE(STMPE811_POLLING_MODE)
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#include "ztimer.h"
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#endif
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#ifndef STMPE811_POLLING_PERIOD
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#define STMPE811_POLLING_PERIOD 50
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#endif
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#if !IS_ACTIVE(STMPE811_POLLING_MODE)
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static void _touch_event_cb(void *arg)
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{
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mutex_unlock(arg);
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}
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#endif
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int main(void)
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{
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#if !IS_ACTIVE(STMPE811_POLLING_MODE)
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mutex_t lock = MUTEX_INIT_LOCKED;
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#endif
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stmpe811_t dev;
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puts("STMPE811 test application\n");
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printf("+------------Initializing------------+\n");
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#if IS_ACTIVE(STMPE811_POLLING_MODE)
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int ret = stmpe811_init(&dev, &stmpe811_params[0], NULL, NULL);
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#else
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int ret = stmpe811_init(&dev, &stmpe811_params[0], _touch_event_cb, &lock);
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#endif
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if (ret != 0) {
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puts("[Error] Initialization failed");
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return 1;
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}
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puts("Initialization successful");
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stmpe811_touch_state_t current_touch_state;
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stmpe811_read_touch_state(&dev, ¤t_touch_state);
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stmpe811_touch_state_t last_touch_state = current_touch_state;
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while (1) {
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#if IS_ACTIVE(STMPE811_POLLING_MODE)
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/* polling is used */
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ztimer_sleep(ZTIMER_MSEC, STMPE811_POLLING_PERIOD);
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#else
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/* wait for touch event */
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mutex_lock(&lock);
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#endif
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stmpe811_read_touch_state(&dev, ¤t_touch_state);
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if (current_touch_state != last_touch_state) {
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if (current_touch_state == STMPE811_TOUCH_STATE_PRESSED) {
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puts("Pressed!");
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}
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if (current_touch_state == STMPE811_TOUCH_STATE_RELEASED) {
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puts("Released!");
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}
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last_touch_state = current_touch_state;
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}
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/* Display touch position if pressed */
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if (current_touch_state == STMPE811_TOUCH_STATE_PRESSED) {
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stmpe811_touch_position_t position;
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stmpe811_read_touch_position(&dev, &position);
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printf("X: %i, Y:%i\n", position.x, position.y);
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}
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}
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return 0;
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}
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