projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1b3bd859 HJ |
1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef BME680_H_ | |
| 3 | #define BME680_H_ | |
| 4 | ||
| 73f3bc6d | 5 | #define BME680_REG_CHIP_ID 0xD0 |
| 70f1cbdd | 6 | #define BME680_CHIP_ID_VAL 0x61 |
| 73f3bc6d | 7 | #define BME680_REG_SOFT_RESET 0xE0 |
| 70f1cbdd | 8 | #define BME680_CMD_SOFTRESET 0xB6 |
| 1b3bd859 HJ |
9 | #define BME680_REG_STATUS 0x73 |
| 10 | #define BME680_SPI_MEM_PAGE_BIT BIT(4) | |
| 11 | #define BME680_SPI_MEM_PAGE_1_VAL 1 | |
| 12 | ||
| 13 | #define BME680_REG_TEMP_MSB 0x22 | |
| 14 | #define BME680_REG_PRESS_MSB 0x1F | |
| dfbfb228 | 15 | #define BME680_REG_HUMIDITY_MSB 0x25 |
| 1b3bd859 HJ |
16 | #define BME680_REG_GAS_MSB 0x2A |
| 17 | #define BME680_REG_GAS_R_LSB 0x2B | |
| 18 | #define BME680_GAS_STAB_BIT BIT(4) | |
| 8d3032c3 | 19 | #define BME680_GAS_RANGE_MASK GENMASK(3, 0) |
| 1b3bd859 HJ |
20 | |
| 21 | #define BME680_REG_CTRL_HUMIDITY 0x72 | |
| 22 | #define BME680_OSRS_HUMIDITY_MASK GENMASK(2, 0) | |
| 23 | ||
| 24 | #define BME680_REG_CTRL_MEAS 0x74 | |
| 25 | #define BME680_OSRS_TEMP_MASK GENMASK(7, 5) | |
| 26 | #define BME680_OSRS_PRESS_MASK GENMASK(4, 2) | |
| 27 | #define BME680_MODE_MASK GENMASK(1, 0) | |
| 70f1cbdd DF |
28 | #define BME680_MODE_FORCED 1 |
| 29 | #define BME680_MODE_SLEEP 0 | |
| 1b3bd859 HJ |
30 | |
| 31 | #define BME680_REG_CONFIG 0x75 | |
| 32 | #define BME680_FILTER_MASK GENMASK(4, 2) | |
| 33 | #define BME680_FILTER_COEFF_VAL BIT(1) | |
| 34 | ||
| 35 | /* TEMP/PRESS/HUMID reading skipped */ | |
| 36 | #define BME680_MEAS_SKIPPED 0x8000 | |
| 37 | ||
| 38 | #define BME680_MAX_OVERFLOW_VAL 0x40000000 | |
| 39 | #define BME680_HUM_REG_SHIFT_VAL 4 | |
| 8d3032c3 | 40 | #define BME680_BIT_H1_DATA_MASK GENMASK(3, 0) |
| 1b3bd859 | 41 | |
| 8d3032c3 | 42 | #define BME680_RHRANGE_MASK GENMASK(5, 4) |
| 1b3bd859 | 43 | #define BME680_REG_RES_HEAT_VAL 0x00 |
| 8d3032c3 | 44 | #define BME680_RSERROR_MASK GENMASK(7, 4) |
| 1b3bd859 HJ |
45 | #define BME680_REG_RES_HEAT_0 0x5A |
| 46 | #define BME680_REG_GAS_WAIT_0 0x64 | |
| 5a387668 | 47 | #define BME680_ADC_GAS_RES GENMASK(15, 6) |
| 1b3bd859 HJ |
48 | #define BME680_AMB_TEMP 25 |
| 49 | ||
| 50 | #define BME680_REG_CTRL_GAS_1 0x71 | |
| 51 | #define BME680_RUN_GAS_MASK BIT(4) | |
| 52 | #define BME680_NB_CONV_MASK GENMASK(3, 0) | |
| 1b3bd859 HJ |
53 | |
| 54 | #define BME680_REG_MEAS_STAT_0 0x1D | |
| 4241665e | 55 | #define BME680_NEW_DATA_BIT BIT(7) |
| 1b3bd859 | 56 | #define BME680_GAS_MEAS_BIT BIT(6) |
| 4241665e | 57 | #define BME680_MEAS_BIT BIT(5) |
| 1b3bd859 | 58 | |
| f2f2e7b1 VA |
59 | #define BME680_TEMP_NUM_BYTES 3 |
| 60 | #define BME680_PRESS_NUM_BYTES 3 | |
| 61 | #define BME680_HUMID_NUM_BYTES 2 | |
| 62 | #define BME680_GAS_NUM_BYTES 2 | |
| 63 | ||
| 64 | #define BME680_MEAS_TRIM_MASK GENMASK(24, 4) | |
| 65 | ||
| fe358e57 VA |
66 | #define BME680_STARTUP_TIME_US 5000 |
| 67 | ||
| 1b3bd859 HJ |
68 | /* Calibration Parameters */ |
| 69 | #define BME680_T2_LSB_REG 0x8A | |
| 1b3bd859 | 70 | #define BME680_H2_MSB_REG 0xE1 |
| 1b3bd859 HJ |
71 | #define BME680_GH3_REG 0xEE |
| 72 | ||
| a4f765e7 VA |
73 | #define BME680_CALIB_RANGE_1_LEN 23 |
| 74 | #define BME680_CALIB_RANGE_2_LEN 14 | |
| 75 | #define BME680_CALIB_RANGE_3_LEN 5 | |
| 76 | ||
| 1b3bd859 HJ |
77 | extern const struct regmap_config bme680_regmap_config; |
| 78 | ||
| 79 | int bme680_core_probe(struct device *dev, struct regmap *regmap, | |
| 80 | const char *name); | |
| 81 | ||
| 82 | #endif /* BME680_H_ */ |