esp32-touch-sensor-input.h

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/*
 * Copyright (c) 2023 Espressif Systems (Shanghai) Co., Ltd.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_INPUT_ESP32_TOUCH_SENSOR_INPUT_H_
#define ZEPHYR_INCLUDE_DT_BINDINGS_INPUT_ESP32_TOUCH_SENSOR_INPUT_H_
 
#include <zephyr/dt-bindings/dt-util.h>
 
/* Touch sensor IIR filter mode */
#define ESP32_TOUCH_FILTER_MODE_IIR_4           0
#define ESP32_TOUCH_FILTER_MODE_IIR_8           1
#define ESP32_TOUCH_FILTER_MODE_IIR_16          2
#define ESP32_TOUCH_FILTER_MODE_IIR_32          3
#define ESP32_TOUCH_FILTER_MODE_IIR_64          4
#define ESP32_TOUCH_FILTER_MODE_IIR_128         5
#define ESP32_TOUCH_FILTER_MODE_IIR_256         6
#define ESP32_TOUCH_FILTER_MODE_JITTER          7
 
/* Touch sensor level of filter noise threshold coefficient*/
#define ESP32_TOUCH_FILTER_NOISE_THR_4_8TH      0
#define ESP32_TOUCH_FILTER_NOISE_THR_3_8TH      1
#define ESP32_TOUCH_FILTER_NOISE_THR_2_8TH      2
#define ESP32_TOUCH_FILTER_NOISE_THR_8_8TH      3
 
/* Touch sensor level of filter applied on the original data */
#define ESP32_TOUCH_FILTER_SMOOTH_MODE_OFF      0
#define ESP32_TOUCH_FILTER_SMOOTH_MODE_IIR_2    1
#define ESP32_TOUCH_FILTER_SMOOTH_MODE_IIR_4    2
#define ESP32_TOUCH_FILTER_SMOOTH_MODE_IIR_8    3
 
#endif /* ZEPHYR_INCLUDE_DT_BINDINGS_INPUT_ESP32_TOUCH_SENSOR_INPUT_H_ */