Add support for PAW3204 Optical Sensor (#17669)

Co-authored-by: gompa <gompa@h-bomb.nl>
Co-authored-by: Stefan Kerkmann <karlk90@pm.me>

1 files changed, 68 insertions, 0 deletions

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 <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);