blob: 123f3841a0902b7d7f8c59b70a672a9d83c52268 [file] [log] [blame]
/*
* Copyright (c) 2020 Sven Herrmann
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ZEPHYR_DRIVERS_SENSOR_MPR_H_
#define ZEPHYR_DRIVERS_SENSOR_MPR_H_
#include <zephyr/drivers/i2c.h>
/* MPR output measurement command */
#define MPR_OUTPUT_MEASUREMENT_COMMAND (0xAA)
/* MPR status byte masks */
#define MPR_STATUS_MASK_MATH_SATURATION (0x01)
#define MPR_STATUS_MASK_INTEGRITY_TEST_FAILED (0x04)
#define MPR_STATUS_MASK_BUSY (0x20)
#define MPR_STATUS_MASK_POWER_ON (0x40)
/* MPR register read maximum retries */
#ifndef MPR_REG_READ_MAX_RETRIES
#define MPR_REG_READ_MAX_RETRIES (3)
#endif
/* MPR register read data conversion delay [ms] */
#ifndef MPR_REG_READ_DATA_CONV_DELAY_MS
#define MPR_REG_READ_DATA_CONV_DELAY_MS (5)
#endif
struct mpr_data {
uint32_t reg_val;
};
struct mpr_config {
struct i2c_dt_spec i2c;
};
int mpr_reg_read(const struct device *dev, uint8_t reg, uint16_t *val);
#endif /* ZEPHYR_DRIVERS_SENSOR_MPR_H_ */