From 12eb6444c67456d522c815120de8eed431ead2f8 Mon Sep 17 00:00:00 2001 From: Drashna Jaelre Date: Tue, 19 Jul 2022 17:46:22 -0700 Subject: Add support for PAW3204 Optical Sensor (#17669) Co-authored-by: gompa Co-authored-by: Stefan Kerkmann --- drivers/sensors/paw3204.h | 68 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 drivers/sensors/paw3204.h (limited to 'drivers/sensors/paw3204.h') diff --git a/drivers/sensors/paw3204.h b/drivers/sensors/paw3204.h new file mode 100644 index 0000000000..bf6dbd04a0 --- /dev/null +++ b/drivers/sensors/paw3204.h @@ -0,0 +1,68 @@ +/* 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 . + */ + +#pragma once + +#include +#include + +#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); -- cgit v1.2.3