| /* |
| * 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_ */ |
