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
13#ifndef HMC5843_CORE_H
14#define HMC5843_CORE_H
15
16#include <linux/regmap.h>
17#include <linux/iio/iio.h>
18
19#define HMC5843_CONFIG_REG_A			0x00
20#define HMC5843_CONFIG_REG_B			0x01
21#define HMC5843_MODE_REG			0x02
22#define HMC5843_DATA_OUT_MSB_REGS		0x03
23#define HMC5843_STATUS_REG			0x09
24#define HMC5843_ID_REG				0x0a
25#define HMC5843_ID_END				0x0c
26
27enum hmc5843_ids {
28	HMC5843_ID,
29	HMC5883_ID,
30	HMC5883L_ID,
31	HMC5983_ID,
32};
33
34/**
35 * struct hcm5843_data	- device specific data
36 * @dev:		actual device
37 * @lock:		update and read regmap data
38 * @regmap:		hardware access register maps
39 * @variant:		describe chip variants
40 * @buffer:		3x 16-bit channels + padding + 64-bit timestamp
41 **/
42struct hmc5843_data {
43	struct device *dev;
44	struct mutex lock;
45	struct regmap *regmap;
46	const struct hmc5843_chip_info *variant;
47	__be16 buffer[8];
48};
49
50int hmc5843_common_probe(struct device *dev, struct regmap *regmap,
51			 enum hmc5843_ids id);
52int hmc5843_common_remove(struct device *dev);
53
54int hmc5843_common_suspend(struct device *dev);
55int hmc5843_common_resume(struct device *dev);
56
57#ifdef CONFIG_PM_SLEEP
58static SIMPLE_DEV_PM_OPS(hmc5843_pm_ops,
59		hmc5843_common_suspend,
60		hmc5843_common_resume);
61#define HMC5843_PM_OPS (&hmc5843_pm_ops)
62#else
63#define HMC5843_PM_OPS NULL
64#endif
65
66#endif /* HMC5843_CORE_H */
67