1 #include <linux/bitops.h> 2 #include <linux/device.h> 3 #include <linux/regmap.h> 4 5 /* BMP280 specific registers */ 6 #define BMP280_REG_HUMIDITY_LSB 0xFE 7 #define BMP280_REG_HUMIDITY_MSB 0xFD 8 #define BMP280_REG_TEMP_XLSB 0xFC 9 #define BMP280_REG_TEMP_LSB 0xFB 10 #define BMP280_REG_TEMP_MSB 0xFA 11 #define BMP280_REG_PRESS_XLSB 0xF9 12 #define BMP280_REG_PRESS_LSB 0xF8 13 #define BMP280_REG_PRESS_MSB 0xF7 14 15 #define BMP280_REG_CONFIG 0xF5 16 #define BMP280_REG_CTRL_MEAS 0xF4 17 #define BMP280_REG_STATUS 0xF3 18 #define BMP280_REG_CTRL_HUMIDITY 0xF2 19 20 /* Due to non linear mapping, and data sizes we can't do a bulk read */ 21 #define BMP280_REG_COMP_H1 0xA1 22 #define BMP280_REG_COMP_H2 0xE1 23 #define BMP280_REG_COMP_H3 0xE3 24 #define BMP280_REG_COMP_H4 0xE4 25 #define BMP280_REG_COMP_H5 0xE5 26 #define BMP280_REG_COMP_H6 0xE7 27 28 #define BMP280_REG_COMP_TEMP_START 0x88 29 #define BMP280_COMP_TEMP_REG_COUNT 6 30 31 #define BMP280_REG_COMP_PRESS_START 0x8E 32 #define BMP280_COMP_PRESS_REG_COUNT 18 33 34 #define BMP280_FILTER_MASK (BIT(4) | BIT(3) | BIT(2)) 35 #define BMP280_FILTER_OFF 0 36 #define BMP280_FILTER_2X BIT(2) 37 #define BMP280_FILTER_4X BIT(3) 38 #define BMP280_FILTER_8X (BIT(3) | BIT(2)) 39 #define BMP280_FILTER_16X BIT(4) 40 41 #define BMP280_OSRS_HUMIDITY_MASK (BIT(2) | BIT(1) | BIT(0)) 42 #define BMP280_OSRS_HUMIDITIY_X(osrs_h) ((osrs_h) << 0) 43 #define BMP280_OSRS_HUMIDITY_SKIP 0 44 #define BMP280_OSRS_HUMIDITY_1X BMP280_OSRS_HUMIDITIY_X(1) 45 #define BMP280_OSRS_HUMIDITY_2X BMP280_OSRS_HUMIDITIY_X(2) 46 #define BMP280_OSRS_HUMIDITY_4X BMP280_OSRS_HUMIDITIY_X(3) 47 #define BMP280_OSRS_HUMIDITY_8X BMP280_OSRS_HUMIDITIY_X(4) 48 #define BMP280_OSRS_HUMIDITY_16X BMP280_OSRS_HUMIDITIY_X(5) 49 50 #define BMP280_OSRS_TEMP_MASK (BIT(7) | BIT(6) | BIT(5)) 51 #define BMP280_OSRS_TEMP_SKIP 0 52 #define BMP280_OSRS_TEMP_X(osrs_t) ((osrs_t) << 5) 53 #define BMP280_OSRS_TEMP_1X BMP280_OSRS_TEMP_X(1) 54 #define BMP280_OSRS_TEMP_2X BMP280_OSRS_TEMP_X(2) 55 #define BMP280_OSRS_TEMP_4X BMP280_OSRS_TEMP_X(3) 56 #define BMP280_OSRS_TEMP_8X BMP280_OSRS_TEMP_X(4) 57 #define BMP280_OSRS_TEMP_16X BMP280_OSRS_TEMP_X(5) 58 59 #define BMP280_OSRS_PRESS_MASK (BIT(4) | BIT(3) | BIT(2)) 60 #define BMP280_OSRS_PRESS_SKIP 0 61 #define BMP280_OSRS_PRESS_X(osrs_p) ((osrs_p) << 2) 62 #define BMP280_OSRS_PRESS_1X BMP280_OSRS_PRESS_X(1) 63 #define BMP280_OSRS_PRESS_2X BMP280_OSRS_PRESS_X(2) 64 #define BMP280_OSRS_PRESS_4X BMP280_OSRS_PRESS_X(3) 65 #define BMP280_OSRS_PRESS_8X BMP280_OSRS_PRESS_X(4) 66 #define BMP280_OSRS_PRESS_16X BMP280_OSRS_PRESS_X(5) 67 68 #define BMP280_MODE_MASK (BIT(1) | BIT(0)) 69 #define BMP280_MODE_SLEEP 0 70 #define BMP280_MODE_FORCED BIT(0) 71 #define BMP280_MODE_NORMAL (BIT(1) | BIT(0)) 72 73 /* BMP180 specific registers */ 74 #define BMP180_REG_OUT_XLSB 0xF8 75 #define BMP180_REG_OUT_LSB 0xF7 76 #define BMP180_REG_OUT_MSB 0xF6 77 78 #define BMP180_REG_CALIB_START 0xAA 79 #define BMP180_REG_CALIB_COUNT 22 80 81 #define BMP180_MEAS_SCO BIT(5) 82 #define BMP180_MEAS_TEMP (0x0E | BMP180_MEAS_SCO) 83 #define BMP180_MEAS_PRESS_X(oss) ((oss) << 6 | 0x14 | BMP180_MEAS_SCO) 84 #define BMP180_MEAS_PRESS_1X BMP180_MEAS_PRESS_X(0) 85 #define BMP180_MEAS_PRESS_2X BMP180_MEAS_PRESS_X(1) 86 #define BMP180_MEAS_PRESS_4X BMP180_MEAS_PRESS_X(2) 87 #define BMP180_MEAS_PRESS_8X BMP180_MEAS_PRESS_X(3) 88 89 /* BMP180 and BMP280 common registers */ 90 #define BMP280_REG_CTRL_MEAS 0xF4 91 #define BMP280_REG_RESET 0xE0 92 #define BMP280_REG_ID 0xD0 93 94 #define BMP180_CHIP_ID 0x55 95 #define BMP280_CHIP_ID 0x58 96 #define BME280_CHIP_ID 0x60 97 #define BMP280_SOFT_RESET_VAL 0xB6 98 99 /* BMP280 register skipped special values */ 100 #define BMP280_TEMP_SKIPPED 0x80000 101 #define BMP280_PRESS_SKIPPED 0x80000 102 #define BMP280_HUMIDITY_SKIPPED 0x8000 103 104 /* Regmap configurations */ 105 extern const struct regmap_config bmp180_regmap_config; 106 extern const struct regmap_config bmp280_regmap_config; 107 108 /* Probe called from different transports */ 109 int bmp280_common_probe(struct device *dev, 110 struct regmap *regmap, 111 unsigned int chip, 112 const char *name, 113 int irq); 114 int bmp280_common_remove(struct device *dev); 115 116 /* PM ops */ 117 extern const struct dev_pm_ops bmp280_dev_pm_ops; 118