1/* SPDX-License-Identifier: GPL-2.0 */
2#include <linux/bitops.h>
3#include <linux/device.h>
4#include <linux/regmap.h>
5
6/* BMP280 specific registers */
7#define BMP280_REG_HUMIDITY_LSB		0xFE
8#define BMP280_REG_HUMIDITY_MSB		0xFD
9#define BMP280_REG_TEMP_XLSB		0xFC
10#define BMP280_REG_TEMP_LSB		0xFB
11#define BMP280_REG_TEMP_MSB		0xFA
12#define BMP280_REG_PRESS_XLSB		0xF9
13#define BMP280_REG_PRESS_LSB		0xF8
14#define BMP280_REG_PRESS_MSB		0xF7
15
16#define BMP280_REG_CONFIG		0xF5
17#define BMP280_REG_CTRL_MEAS		0xF4
18#define BMP280_REG_STATUS		0xF3
19#define BMP280_REG_CTRL_HUMIDITY	0xF2
20
21/* Due to non linear mapping, and data sizes we can't do a bulk read */
22#define BMP280_REG_COMP_H1		0xA1
23#define BMP280_REG_COMP_H2		0xE1
24#define BMP280_REG_COMP_H3		0xE3
25#define BMP280_REG_COMP_H4		0xE4
26#define BMP280_REG_COMP_H5		0xE5
27#define BMP280_REG_COMP_H6		0xE7
28
29#define BMP280_REG_COMP_TEMP_START	0x88
30#define BMP280_COMP_TEMP_REG_COUNT	6
31
32#define BMP280_REG_COMP_PRESS_START	0x8E
33#define BMP280_COMP_PRESS_REG_COUNT	18
34
35#define BMP280_FILTER_MASK		(BIT(4) | BIT(3) | BIT(2))
36#define BMP280_FILTER_OFF		0
37#define BMP280_FILTER_2X		BIT(2)
38#define BMP280_FILTER_4X		BIT(3)
39#define BMP280_FILTER_8X		(BIT(3) | BIT(2))
40#define BMP280_FILTER_16X		BIT(4)
41
42#define BMP280_OSRS_HUMIDITY_MASK	(BIT(2) | BIT(1) | BIT(0))
43#define BMP280_OSRS_HUMIDITIY_X(osrs_h)	((osrs_h) << 0)
44#define BMP280_OSRS_HUMIDITY_SKIP	0
45#define BMP280_OSRS_HUMIDITY_1X		BMP280_OSRS_HUMIDITIY_X(1)
46#define BMP280_OSRS_HUMIDITY_2X		BMP280_OSRS_HUMIDITIY_X(2)
47#define BMP280_OSRS_HUMIDITY_4X		BMP280_OSRS_HUMIDITIY_X(3)
48#define BMP280_OSRS_HUMIDITY_8X		BMP280_OSRS_HUMIDITIY_X(4)
49#define BMP280_OSRS_HUMIDITY_16X	BMP280_OSRS_HUMIDITIY_X(5)
50
51#define BMP280_OSRS_TEMP_MASK		(BIT(7) | BIT(6) | BIT(5))
52#define BMP280_OSRS_TEMP_SKIP		0
53#define BMP280_OSRS_TEMP_X(osrs_t)	((osrs_t) << 5)
54#define BMP280_OSRS_TEMP_1X		BMP280_OSRS_TEMP_X(1)
55#define BMP280_OSRS_TEMP_2X		BMP280_OSRS_TEMP_X(2)
56#define BMP280_OSRS_TEMP_4X		BMP280_OSRS_TEMP_X(3)
57#define BMP280_OSRS_TEMP_8X		BMP280_OSRS_TEMP_X(4)
58#define BMP280_OSRS_TEMP_16X		BMP280_OSRS_TEMP_X(5)
59
60#define BMP280_OSRS_PRESS_MASK		(BIT(4) | BIT(3) | BIT(2))
61#define BMP280_OSRS_PRESS_SKIP		0
62#define BMP280_OSRS_PRESS_X(osrs_p)	((osrs_p) << 2)
63#define BMP280_OSRS_PRESS_1X		BMP280_OSRS_PRESS_X(1)
64#define BMP280_OSRS_PRESS_2X		BMP280_OSRS_PRESS_X(2)
65#define BMP280_OSRS_PRESS_4X		BMP280_OSRS_PRESS_X(3)
66#define BMP280_OSRS_PRESS_8X		BMP280_OSRS_PRESS_X(4)
67#define BMP280_OSRS_PRESS_16X		BMP280_OSRS_PRESS_X(5)
68
69#define BMP280_MODE_MASK		(BIT(1) | BIT(0))
70#define BMP280_MODE_SLEEP		0
71#define BMP280_MODE_FORCED		BIT(0)
72#define BMP280_MODE_NORMAL		(BIT(1) | BIT(0))
73
74/* BMP180 specific registers */
75#define BMP180_REG_OUT_XLSB		0xF8
76#define BMP180_REG_OUT_LSB		0xF7
77#define BMP180_REG_OUT_MSB		0xF6
78
79#define BMP180_REG_CALIB_START		0xAA
80#define BMP180_REG_CALIB_COUNT		22
81
82#define BMP180_MEAS_SCO			BIT(5)
83#define BMP180_MEAS_TEMP		(0x0E | BMP180_MEAS_SCO)
84#define BMP180_MEAS_PRESS_X(oss)	((oss) << 6 | 0x14 | BMP180_MEAS_SCO)
85#define BMP180_MEAS_PRESS_1X		BMP180_MEAS_PRESS_X(0)
86#define BMP180_MEAS_PRESS_2X		BMP180_MEAS_PRESS_X(1)
87#define BMP180_MEAS_PRESS_4X		BMP180_MEAS_PRESS_X(2)
88#define BMP180_MEAS_PRESS_8X		BMP180_MEAS_PRESS_X(3)
89
90/* BMP180 and BMP280 common registers */
91#define BMP280_REG_CTRL_MEAS		0xF4
92#define BMP280_REG_RESET		0xE0
93#define BMP280_REG_ID			0xD0
94
95#define BMP180_CHIP_ID			0x55
96#define BMP280_CHIP_ID			0x58
97#define BME280_CHIP_ID			0x60
98#define BMP280_SOFT_RESET_VAL		0xB6
99
100/* BMP280 register skipped special values */
101#define BMP280_TEMP_SKIPPED		0x80000
102#define BMP280_PRESS_SKIPPED		0x80000
103#define BMP280_HUMIDITY_SKIPPED		0x8000
104
105/* Regmap configurations */
106extern const struct regmap_config bmp180_regmap_config;
107extern const struct regmap_config bmp280_regmap_config;
108
109/* Probe called from different transports */
110int bmp280_common_probe(struct device *dev,
111			struct regmap *regmap,
112			unsigned int chip,
113			const char *name,
114			int irq);
115
116/* PM ops */
117extern const struct dev_pm_ops bmp280_dev_pm_ops;
118