zephyr/drivers/sensor/mpr/mpr.h

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/*
* Copyright (c) 2020 Sven Herrmann
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ZEPHYR_DRIVERS_SENSOR_MPR_H_
#define ZEPHYR_DRIVERS_SENSOR_MPR_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 {
const struct device *i2c_master;
uint32_t reg_val;
};
struct mpr_config {
const char *i2c_bus;
uint16_t i2c_addr;
};
int mpr_reg_read(const struct device *dev, uint8_t reg, uint16_t *val);
#endif /* ZEPHYR_DRIVERS_SENSOR_MPR_H_ */