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RIOT/drivers/cst816s/cst816s_touch_dev.c

94 lines
1.9 KiB
C

/*
* Copyright (C) 2022 Inria
*
* 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 drivers_cst816s
* @{
*
* @file
* @brief Driver adaption to touch_dev generic interface
*
* @author Alexandre Abadie <alexandre.abadie@inria.fr>
* @}
*/
#include <stddef.h>
#include <stdint.h>
#include <errno.h>
#include <assert.h>
#include "kernel_defines.h"
#include "board.h"
#include "cst816s.h"
#include "cst816s_touch_dev.h"
#define ENABLE_DEBUG 0
#include "debug.h"
#ifndef CST816S_XMAX
#define CST816S_XMAX 240
#endif
#ifndef CST816S_YMAX
#define CST816S_YMAX 240
#endif
uint16_t _cst816s_height(const touch_dev_t *touch_dev)
{
const cst816s_t *dev = (const cst816s_t *)touch_dev;
assert(dev);
return CST816S_YMAX;
}
uint16_t _cst816s_width(const touch_dev_t *touch_dev)
{
const cst816s_t *dev = (const cst816s_t *)touch_dev;
assert(dev);
return CST816S_XMAX;
}
uint8_t _cst816s_touches(const touch_dev_t *touch_dev, touch_t *touches, size_t len)
{
(void)len;
cst816s_t *dev = (cst816s_t *)touch_dev;
assert(dev);
cst816s_touch_data_t data;
cst816s_read(dev, &data);
uint8_t ret = (data.action == CST816S_TOUCH_DOWN);
if (ret && touches != NULL) {
touches[0].x = data.x;
touches[0].y = data.y;
DEBUG("X: %i, Y: %i\n", touches[0].x, touches[0].y);
}
return ret;
}
void _cst816s_set_event_callback(const touch_dev_t *touch_dev, touch_event_cb_t cb, void *arg)
{
cst816s_t *dev = (cst816s_t *)touch_dev;
assert(dev);
dev->cb = (cst816s_irq_cb_t)cb;
dev->cb_arg = arg;
}
const touch_dev_driver_t cst816s_touch_dev_driver = {
.height = _cst816s_height,
.width = _cst816s_width,
.touches = _cst816s_touches,
.set_event_callback = _cst816s_set_event_callback,
};