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/* Copyright 2021 Gompa (@Gompa)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stdint.h>
#include <stdbool.h>
#ifndef PAW3204_SCLK_PIN
# error "No clock pin defined -- missing PAW3204_SCLK_PIN"
#endif
#ifndef PAW3204_SDIO_PIN
# error "No data pin defined -- missing PAW3204_SDIO_PIN"
#endif
typedef struct {
int16_t x;
int16_t y;
bool isMotion;
} report_paw3204_t;
/**
* @brief Initializes the sensor so it is in a working state and ready to
* be polled for data.
*
* @return true Initialization was a success
* @return false Initialization failed, do not proceed operation
*/
void paw3204_init(void);
/**
* @brief Reads and clears the current delta, and motion register values on the
* given sensor.
*
* @return pmw33xx_report_t Current values of the sensor, if errors occurred all
* fields are set to zero
*/
report_paw3204_t paw3204_read(void);
/**
* @brief Sets the given CPI value the sensor. CPI is often refereed to
* as the sensors sensitivity. Values outside of the allowed range are
* constrained into legal values.
*
* @param cpi CPI value to set
*/
void paw3204_set_cpi(uint16_t cpi);
/**
* @brief Gets the currently set CPI value from the sensor. CPI is often
* refereed to as the sensors sensitivity.
*
* @return uint16_t Current CPI value of the sensor
*/
uint16_t paw3204_get_cpi(void);
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