1 /*
2  * Header file for hmc5843 driver
3  *
4  * Split from hmc5843.c
5  * Copyright (C) Josef Gajdusek <atx@atx.name>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License version 2 as
9  * published by the Free Software Foundation.
10  */
11 
12 #ifndef HMC5843_CORE_H
13 #define HMC5843_CORE_H
14 
15 #include <linux/regmap.h>
16 #include <linux/iio/iio.h>
17 
18 #define HMC5843_CONFIG_REG_A			0x00
19 #define HMC5843_CONFIG_REG_B			0x01
20 #define HMC5843_MODE_REG			0x02
21 #define HMC5843_DATA_OUT_MSB_REGS		0x03
22 #define HMC5843_STATUS_REG			0x09
23 #define HMC5843_ID_REG				0x0a
24 #define HMC5843_ID_END				0x0c
25 
26 enum hmc5843_ids {
27 	HMC5843_ID,
28 	HMC5883_ID,
29 	HMC5883L_ID,
30 	HMC5983_ID,
31 };
32 
33 /**
34  * struct hcm5843_data	- device specific data
35  * @dev:		actual device
36  * @lock:		update and read regmap data
37  * @regmap:		hardware access register maps
38  * @variant:		describe chip variants
39  * @buffer:		3x 16-bit channels + padding + 64-bit timestamp
40  */
41 struct hmc5843_data {
42 	struct device *dev;
43 	struct mutex lock;
44 	struct regmap *regmap;
45 	const struct hmc5843_chip_info *variant;
46 	__be16 buffer[8];
47 };
48 
49 int hmc5843_common_probe(struct device *dev, struct regmap *regmap,
50 			 enum hmc5843_ids id, const char *name);
51 int hmc5843_common_remove(struct device *dev);
52 
53 int hmc5843_common_suspend(struct device *dev);
54 int hmc5843_common_resume(struct device *dev);
55 
56 #ifdef CONFIG_PM_SLEEP
57 static SIMPLE_DEV_PM_OPS(hmc5843_pm_ops,
58 		hmc5843_common_suspend,
59 		hmc5843_common_resume);
60 #define HMC5843_PM_OPS (&hmc5843_pm_ops)
61 #else
62 #define HMC5843_PM_OPS NULL
63 #endif
64 
65 #endif /* HMC5843_CORE_H */
66