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RIOT/tests/drivers/touch_dev/main.c
Gunar Schorcht 2dd6457196 tests/drivers/touch_dev: introduce TOUCH_DEV_POLLING
To be able to test the touch device in polling mode, variable `TOUCH_DEV_POLLING` 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 `TOUCH_DEV_POLLING_PERIOD` variable.
2023-08-12 13:21:48 +02:00

101 lines
2.3 KiB
C

/*
* Copyright (C) 2020 Inria
* 2023 Gunar Schorcht
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup tests
* @{
*
* @file
* @brief Generic touch device test application
*
* @author Alexandre Abadie <alexandre.abadie@inria.fr>
* @author Gunar Schorcht <gunar@schorcht.net>
*
* @}
*/
#include <stdio.h>
#include <stdbool.h>
#include "mutex.h"
#include "ztimer.h"
#include "touch_dev.h"
#if IS_USED(MODULE_STMPE811)
#include "stmpe811.h"
#include "test_utils/expect.h"
#endif
#ifndef TOUCH_DEV_POLLING_PERIOD
#define TOUCH_DEV_POLLING_PERIOD 50
#endif
#if !IS_ACTIVE(TOUCH_DEV_POLLING_MODE)
static void _touch_event_cb(void *arg)
{
mutex_unlock(arg);
}
#endif
int main(void)
{
/* Use the first screen */
touch_dev_reg_t *touch_dev = touch_dev_reg_find_screen(0);
if (!touch_dev) {
puts("No screen found!");
return -1;
}
#if !IS_ACTIVE(TOUCH_DEV_POLLING_MODE)
mutex_t lock = MUTEX_INIT_LOCKED;
touch_dev_set_touch_event_callback(touch_dev->dev, _touch_event_cb, &lock);
#endif
#if IS_USED(MODULE_STMPE811)
uint16_t xmax = touch_dev_width(touch_dev->dev);
uint16_t ymax = touch_dev_height(touch_dev->dev);
stmpe811_t *stmpe811 = (stmpe811_t *)touch_dev->dev;
expect(xmax == stmpe811->params.xmax);
expect(ymax == stmpe811->params.ymax);
#endif
uint8_t last_touches = touch_dev_touches(touch_dev->dev, NULL, 1);
while (1) {
#if IS_ACTIVE(TOUCH_DEV_POLLING_MODE)
ztimer_sleep(ZTIMER_MSEC, TOUCH_DEV_POLLING_PERIOD);
#else
/* wait for event */
mutex_lock(&lock);
#endif
touch_t touches[1];
uint8_t current_touches = touch_dev_touches(touch_dev->dev, touches, 1);
if (current_touches != last_touches) {
if (current_touches == 0) {
puts("Event: released!");
}
if (current_touches > 0) {
puts("Event: pressed!");
}
last_touches = current_touches;
}
/* Display touch position if pressed */
if (current_touches == 1) {
printf("X: %i, Y:%i\n", touches[0].x, touches[0].y);
}
}
return 0;
}