1  /*
2   *  Copyright (C) 2014, Samsung Electronics Co. Ltd. All Rights Reserved.
3   *
4   *  This program is free software; you can redistribute it and/or modify
5   *  it under the terms of the GNU General Public License as published by
6   *  the Free Software Foundation; either version 2 of the License, or
7   *  (at your option) any later version.
8   *
9   *  This program is distributed in the hope that it will be useful,
10   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
11   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12   *  GNU General Public License for more details.
13   *
14   */
15  #ifndef _SSP_SENSORS_H_
16  #define _SSP_SENSORS_H_
17  
18  #include <linux/iio/iio.h>
19  
20  #define SSP_TIME_SIZE				4
21  #define SSP_ACCELEROMETER_SIZE			6
22  #define SSP_GYROSCOPE_SIZE			6
23  #define SSP_BIO_HRM_RAW_SIZE			8
24  #define SSP_BIO_HRM_RAW_FAC_SIZE		36
25  #define SSP_BIO_HRM_LIB_SIZE			8
26  
27  /**
28   * enum ssp_sensor_type - SSP sensor type
29   */
30  enum ssp_sensor_type {
31  	SSP_ACCELEROMETER_SENSOR = 0,
32  	SSP_GYROSCOPE_SENSOR,
33  	SSP_GEOMAGNETIC_UNCALIB_SENSOR,
34  	SSP_GEOMAGNETIC_RAW,
35  	SSP_GEOMAGNETIC_SENSOR,
36  	SSP_PRESSURE_SENSOR,
37  	SSP_GESTURE_SENSOR,
38  	SSP_PROXIMITY_SENSOR,
39  	SSP_TEMPERATURE_HUMIDITY_SENSOR,
40  	SSP_LIGHT_SENSOR,
41  	SSP_PROXIMITY_RAW,
42  	SSP_ORIENTATION_SENSOR,
43  	SSP_STEP_DETECTOR,
44  	SSP_SIG_MOTION_SENSOR,
45  	SSP_GYRO_UNCALIB_SENSOR,
46  	SSP_GAME_ROTATION_VECTOR,
47  	SSP_ROTATION_VECTOR,
48  	SSP_STEP_COUNTER,
49  	SSP_BIO_HRM_RAW,
50  	SSP_BIO_HRM_RAW_FAC,
51  	SSP_BIO_HRM_LIB,
52  	SSP_SENSOR_MAX,
53  };
54  
55  struct ssp_data;
56  
57  /**
58   * struct ssp_sensor_data - Sensor object
59   * @process_data:	Callback to feed sensor data.
60   * @type:		Used sensor type.
61   * @buffer:		Received data buffer.
62   */
63  struct ssp_sensor_data {
64  	int (*process_data)(struct iio_dev *indio_dev, void *buf,
65  			    int64_t timestamp);
66  	enum ssp_sensor_type type;
67  	u8 *buffer;
68  };
69  
70  void ssp_register_consumer(struct iio_dev *indio_dev,
71  			   enum ssp_sensor_type type);
72  
73  int ssp_enable_sensor(struct ssp_data *data, enum ssp_sensor_type type,
74  		      u32 delay);
75  
76  int ssp_disable_sensor(struct ssp_data *data, enum ssp_sensor_type type);
77  
78  u32 ssp_get_sensor_delay(struct ssp_data *data, enum ssp_sensor_type);
79  
80  int ssp_change_delay(struct ssp_data *data, enum ssp_sensor_type type,
81  		     u32 delay);
82  #endif /* _SSP_SENSORS_H_ */
83