92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef BME680_H_
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#define BME680_H_
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#define BME680_REG_CHIP_ID 0xD0
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#define BME680_CHIP_ID_VAL 0x61
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#define BME680_REG_SOFT_RESET 0xE0
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#define BME680_CMD_SOFTRESET 0xB6
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#define BME680_REG_STATUS 0x73
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#define BME680_SPI_MEM_PAGE_BIT BIT(4)
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#define BME680_SPI_MEM_PAGE_1_VAL 1
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#define BME680_REG_TEMP_MSB 0x22
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#define BME680_REG_PRESS_MSB 0x1F
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#define BM6880_REG_HUMIDITY_MSB 0x25
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#define BME680_REG_GAS_MSB 0x2A
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#define BME680_REG_GAS_R_LSB 0x2B
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#define BME680_GAS_STAB_BIT BIT(4)
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#define BME680_GAS_RANGE_MASK GENMASK(3, 0)
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#define BME680_REG_CTRL_HUMIDITY 0x72
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#define BME680_OSRS_HUMIDITY_MASK GENMASK(2, 0)
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#define BME680_REG_CTRL_MEAS 0x74
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#define BME680_OSRS_TEMP_MASK GENMASK(7, 5)
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#define BME680_OSRS_PRESS_MASK GENMASK(4, 2)
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#define BME680_MODE_MASK GENMASK(1, 0)
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#define BME680_MODE_FORCED 1
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#define BME680_MODE_SLEEP 0
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#define BME680_REG_CONFIG 0x75
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#define BME680_FILTER_MASK GENMASK(4, 2)
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#define BME680_FILTER_COEFF_VAL BIT(1)
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/* TEMP/PRESS/HUMID reading skipped */
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#define BME680_MEAS_SKIPPED 0x8000
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#define BME680_MAX_OVERFLOW_VAL 0x40000000
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#define BME680_HUM_REG_SHIFT_VAL 4
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#define BME680_BIT_H1_DATA_MASK GENMASK(3, 0)
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#define BME680_REG_RES_HEAT_RANGE 0x02
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#define BME680_RHRANGE_MASK GENMASK(5, 4)
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#define BME680_REG_RES_HEAT_VAL 0x00
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#define BME680_REG_RANGE_SW_ERR 0x04
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#define BME680_RSERROR_MASK GENMASK(7, 4)
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#define BME680_REG_RES_HEAT_0 0x5A
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#define BME680_REG_GAS_WAIT_0 0x64
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#define BME680_ADC_GAS_RES_SHIFT 6
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#define BME680_AMB_TEMP 25
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#define BME680_REG_CTRL_GAS_1 0x71
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#define BME680_RUN_GAS_MASK BIT(4)
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#define BME680_NB_CONV_MASK GENMASK(3, 0)
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#define BME680_REG_MEAS_STAT_0 0x1D
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#define BME680_GAS_MEAS_BIT BIT(6)
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/* Calibration Parameters */
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#define BME680_T2_LSB_REG 0x8A
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#define BME680_T3_REG 0x8C
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#define BME680_P1_LSB_REG 0x8E
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#define BME680_P2_LSB_REG 0x90
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#define BME680_P3_REG 0x92
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#define BME680_P4_LSB_REG 0x94
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#define BME680_P5_LSB_REG 0x96
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#define BME680_P7_REG 0x98
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#define BME680_P6_REG 0x99
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#define BME680_P8_LSB_REG 0x9C
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#define BME680_P9_LSB_REG 0x9E
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#define BME680_P10_REG 0xA0
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#define BME680_H2_LSB_REG 0xE2
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#define BME680_H2_MSB_REG 0xE1
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#define BME680_H1_MSB_REG 0xE3
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#define BME680_H1_LSB_REG 0xE2
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#define BME680_H3_REG 0xE4
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#define BME680_H4_REG 0xE5
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#define BME680_H5_REG 0xE6
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#define BME680_H6_REG 0xE7
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#define BME680_H7_REG 0xE8
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#define BME680_T1_LSB_REG 0xE9
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#define BME680_GH2_LSB_REG 0xEB
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#define BME680_GH1_REG 0xED
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#define BME680_GH3_REG 0xEE
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extern const struct regmap_config bme680_regmap_config;
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int bme680_core_probe(struct device *dev, struct regmap *regmap,
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const char *name);
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#endif /* BME680_H_ */
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