| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef BME680_H_ |
| #define BME680_H_ |
| |
| #define BME680_REG_CHIP_ID 0xD0 |
| #define BME680_CHIP_ID_VAL 0x61 |
| #define BME680_REG_SOFT_RESET 0xE0 |
| #define BME680_CMD_SOFTRESET 0xB6 |
| #define BME680_REG_STATUS 0x73 |
| #define BME680_SPI_MEM_PAGE_BIT BIT(4) |
| #define BME680_SPI_MEM_PAGE_1_VAL 1 |
| |
| #define BME680_REG_TEMP_MSB 0x22 |
| #define BME680_REG_PRESS_MSB 0x1F |
| #define BME680_REG_HUMIDITY_MSB 0x25 |
| #define BME680_REG_GAS_MSB 0x2A |
| #define BME680_REG_GAS_R_LSB 0x2B |
| #define BME680_GAS_STAB_BIT BIT(4) |
| #define BME680_GAS_RANGE_MASK GENMASK(3, 0) |
| |
| #define BME680_REG_CTRL_HUMIDITY 0x72 |
| #define BME680_OSRS_HUMIDITY_MASK GENMASK(2, 0) |
| |
| #define BME680_REG_CTRL_MEAS 0x74 |
| #define BME680_OSRS_TEMP_MASK GENMASK(7, 5) |
| #define BME680_OSRS_PRESS_MASK GENMASK(4, 2) |
| #define BME680_MODE_MASK GENMASK(1, 0) |
| #define BME680_MODE_FORCED 1 |
| #define BME680_MODE_SLEEP 0 |
| |
| #define BME680_REG_CONFIG 0x75 |
| #define BME680_FILTER_MASK GENMASK(4, 2) |
| #define BME680_FILTER_COEFF_VAL BIT(1) |
| |
| /* TEMP/PRESS/HUMID reading skipped */ |
| #define BME680_MEAS_SKIPPED 0x8000 |
| |
| #define BME680_MAX_OVERFLOW_VAL 0x40000000 |
| #define BME680_HUM_REG_SHIFT_VAL 4 |
| #define BME680_BIT_H1_DATA_MASK GENMASK(3, 0) |
| |
| #define BME680_RHRANGE_MASK GENMASK(5, 4) |
| #define BME680_REG_RES_HEAT_VAL 0x00 |
| #define BME680_RSERROR_MASK GENMASK(7, 4) |
| #define BME680_REG_RES_HEAT_0 0x5A |
| #define BME680_REG_GAS_WAIT_0 0x64 |
| #define BME680_ADC_GAS_RES GENMASK(15, 6) |
| #define BME680_AMB_TEMP 25 |
| |
| #define BME680_REG_CTRL_GAS_1 0x71 |
| #define BME680_RUN_GAS_MASK BIT(4) |
| #define BME680_NB_CONV_MASK GENMASK(3, 0) |
| |
| #define BME680_REG_MEAS_STAT_0 0x1D |
| #define BME680_NEW_DATA_BIT BIT(7) |
| #define BME680_GAS_MEAS_BIT BIT(6) |
| #define BME680_MEAS_BIT BIT(5) |
| |
| #define BME680_TEMP_NUM_BYTES 3 |
| #define BME680_PRESS_NUM_BYTES 3 |
| #define BME680_HUMID_NUM_BYTES 2 |
| #define BME680_GAS_NUM_BYTES 2 |
| |
| #define BME680_MEAS_TRIM_MASK GENMASK(24, 4) |
| |
| #define BME680_STARTUP_TIME_US 5000 |
| |
| /* Calibration Parameters */ |
| #define BME680_T2_LSB_REG 0x8A |
| #define BME680_H2_MSB_REG 0xE1 |
| #define BME680_GH3_REG 0xEE |
| |
| #define BME680_CALIB_RANGE_1_LEN 23 |
| #define BME680_CALIB_RANGE_2_LEN 14 |
| #define BME680_CALIB_RANGE_3_LEN 5 |
| |
| extern const struct regmap_config bme680_regmap_config; |
| |
| int bme680_core_probe(struct device *dev, struct regmap *regmap, |
| const char *name); |
| |
| #endif /* BME680_H_ */ |
