1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef BME680_H_ |
3 | #define BME680_H_ |
4 | |
5 | #define BME680_REG_CHIP_ID 0xD0 |
6 | #define BME680_CHIP_ID_VAL 0x61 |
7 | #define BME680_REG_SOFT_RESET 0xE0 |
8 | #define BME680_CMD_SOFTRESET 0xB6 |
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 |
15 | #define BM6880_REG_HUMIDITY_MSB 0x25 |
16 | #define BME680_REG_GAS_MSB 0x2A |
17 | #define BME680_REG_GAS_R_LSB 0x2B |
18 | #define BME680_GAS_STAB_BIT BIT(4) |
19 | #define BME680_GAS_RANGE_MASK GENMASK(3, 0) |
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) |
28 | #define BME680_MODE_FORCED 1 |
29 | #define BME680_MODE_SLEEP 0 |
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 |
40 | #define BME680_BIT_H1_DATA_MASK GENMASK(3, 0) |
41 | |
42 | #define BME680_REG_RES_HEAT_RANGE 0x02 |
43 | #define BME680_RHRANGE_MASK GENMASK(5, 4) |
44 | #define BME680_REG_RES_HEAT_VAL 0x00 |
45 | #define BME680_REG_RANGE_SW_ERR 0x04 |
46 | #define BME680_RSERROR_MASK GENMASK(7, 4) |
47 | #define BME680_REG_RES_HEAT_0 0x5A |
48 | #define BME680_REG_GAS_WAIT_0 0x64 |
49 | #define BME680_ADC_GAS_RES_SHIFT 6 |
50 | #define BME680_AMB_TEMP 25 |
51 | |
52 | #define BME680_REG_CTRL_GAS_1 0x71 |
53 | #define BME680_RUN_GAS_MASK BIT(4) |
54 | #define BME680_NB_CONV_MASK GENMASK(3, 0) |
55 | |
56 | #define BME680_REG_MEAS_STAT_0 0x1D |
57 | #define BME680_GAS_MEAS_BIT BIT(6) |
58 | |
59 | /* Calibration Parameters */ |
60 | #define BME680_T2_LSB_REG 0x8A |
61 | #define BME680_T3_REG 0x8C |
62 | #define BME680_P1_LSB_REG 0x8E |
63 | #define BME680_P2_LSB_REG 0x90 |
64 | #define BME680_P3_REG 0x92 |
65 | #define BME680_P4_LSB_REG 0x94 |
66 | #define BME680_P5_LSB_REG 0x96 |
67 | #define BME680_P7_REG 0x98 |
68 | #define BME680_P6_REG 0x99 |
69 | #define BME680_P8_LSB_REG 0x9C |
70 | #define BME680_P9_LSB_REG 0x9E |
71 | #define BME680_P10_REG 0xA0 |
72 | #define BME680_H2_LSB_REG 0xE2 |
73 | #define BME680_H2_MSB_REG 0xE1 |
74 | #define BME680_H1_MSB_REG 0xE3 |
75 | #define BME680_H1_LSB_REG 0xE2 |
76 | #define BME680_H3_REG 0xE4 |
77 | #define BME680_H4_REG 0xE5 |
78 | #define BME680_H5_REG 0xE6 |
79 | #define BME680_H6_REG 0xE7 |
80 | #define BME680_H7_REG 0xE8 |
81 | #define BME680_T1_LSB_REG 0xE9 |
82 | #define BME680_GH2_LSB_REG 0xEB |
83 | #define BME680_GH1_REG 0xED |
84 | #define BME680_GH3_REG 0xEE |
85 | |
86 | extern const struct regmap_config bme680_regmap_config; |
87 | |
88 | int bme680_core_probe(struct device *dev, struct regmap *regmap, |
89 | const char *name); |
90 | |
91 | #endif /* BME680_H_ */ |
92 | |