1/*
2 * Common code for Freescale MMA955x Intelligent Sensor Platform drivers
3 * Copyright (c) 2014, Intel Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12 * more details.
13 */
14
15#ifndef _MMA9551_CORE_H_
16#define _MMA9551_CORE_H_
17
18/* Applications IDs */
19#define MMA9551_APPID_VERSION		0x00
20#define MMA9551_APPID_GPIO		0x03
21#define MMA9551_APPID_AFE		0x06
22#define MMA9551_APPID_TILT		0x0B
23#define MMA9551_APPID_SLEEP_WAKE	0x12
24#define MMA9551_APPID_PEDOMETER	        0x15
25#define MMA9551_APPID_RCS		0x17
26#define MMA9551_APPID_NONE		0xff
27
28/* Reset/Suspend/Clear application app masks */
29#define MMA9551_RSC_PED			BIT(21)
30
31#define MMA9551_AUTO_SUSPEND_DELAY_MS	2000
32
33enum mma9551_gpio_pin {
34	mma9551_gpio6 = 0,
35	mma9551_gpio7,
36	mma9551_gpio8,
37	mma9551_gpio9,
38	mma9551_gpio_max = mma9551_gpio9,
39};
40
41#define MMA9551_ACCEL_CHANNEL(axis) {				\
42	.type = IIO_ACCEL,					\
43	.modified = 1,						\
44	.channel2 = axis,					\
45	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
46	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),	\
47}
48
49int mma9551_read_config_byte(struct i2c_client *client, u8 app_id,
50			     u16 reg, u8 *val);
51int mma9551_write_config_byte(struct i2c_client *client, u8 app_id,
52			      u16 reg, u8 val);
53int mma9551_read_status_byte(struct i2c_client *client, u8 app_id,
54			     u16 reg, u8 *val);
55int mma9551_read_config_word(struct i2c_client *client, u8 app_id,
56			    u16 reg, u16 *val);
57int mma9551_write_config_word(struct i2c_client *client, u8 app_id,
58			     u16 reg, u16 val);
59int mma9551_read_status_word(struct i2c_client *client, u8 app_id,
60			     u16 reg, u16 *val);
61int mma9551_read_config_words(struct i2c_client *client, u8 app_id,
62			     u16 reg, u8 len, u16 *buf);
63int mma9551_read_status_words(struct i2c_client *client, u8 app_id,
64			      u16 reg, u8 len, u16 *buf);
65int mma9551_write_config_words(struct i2c_client *client, u8 app_id,
66			       u16 reg, u8 len, u16 *buf);
67int mma9551_update_config_bits(struct i2c_client *client, u8 app_id,
68			       u16 reg, u8 mask, u8 val);
69int mma9551_gpio_config(struct i2c_client *client, enum mma9551_gpio_pin pin,
70			u8 app_id, u8 bitnum, int polarity);
71int mma9551_read_version(struct i2c_client *client);
72int mma9551_set_device_state(struct i2c_client *client, bool enable);
73int mma9551_set_power_state(struct i2c_client *client, bool on);
74void mma9551_sleep(int freq);
75int mma9551_read_accel_chan(struct i2c_client *client,
76			    const struct iio_chan_spec *chan,
77			    int *val, int *val2);
78int mma9551_read_accel_scale(int *val, int *val2);
79int mma9551_app_reset(struct i2c_client *client, u32 app_mask);
80
81#endif /* _MMA9551_CORE_H_ */
82