| /* Copyright (c) 2013-2014, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef __LINUX_SENSORS_H_INCLUDED |
| #define __LINUX_SENSORS_H_INCLUDED |
| |
| #include <linux/list.h> |
| #include <linux/spinlock.h> |
| #include <linux/rwsem.h> |
| |
| #define SENSORS_ACCELERATION_HANDLE 0 |
| #define SENSORS_MAGNETIC_FIELD_HANDLE 1 |
| #define SENSORS_ORIENTATION_HANDLE 2 |
| #define SENSORS_LIGHT_HANDLE 3 |
| #define SENSORS_PROXIMITY_HANDLE 4 |
| #define SENSORS_GYROSCOPE_HANDLE 5 |
| #define SENSORS_PRESSURE_HANDLE 6 |
| |
| #define SENSOR_TYPE_ACCELEROMETER 1 |
| #define SENSOR_TYPE_GEOMAGNETIC_FIELD 2 |
| #define SENSOR_TYPE_MAGNETIC_FIELD SENSOR_TYPE_GEOMAGNETIC_FIELD |
| #define SENSOR_TYPE_ORIENTATION 3 |
| #define SENSOR_TYPE_GYROSCOPE 4 |
| #define SENSOR_TYPE_LIGHT 5 |
| #define SENSOR_TYPE_PRESSURE 6 |
| #define SENSOR_TYPE_TEMPERATURE 7 |
| #define SENSOR_TYPE_PROXIMITY 8 |
| #define SENSOR_TYPE_GRAVITY 9 |
| #define SENSOR_TYPE_LINEAR_ACCELERATION 10 |
| #define SENSOR_TYPE_ROTATION_VECTOR 11 |
| #define SENSOR_TYPE_RELATIVE_HUMIDITY 12 |
| #define SENSOR_TYPE_AMBIENT_TEMPERATURE 13 |
| #define SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED 14 |
| #define SENSOR_TYPE_GAME_ROTATION_VECTOR 15 |
| #define SENSOR_TYPE_GYROSCOPE_UNCALIBRATED 16 |
| #define SENSOR_TYPE_SIGNIFICANT_MOTION 17 |
| #define SENSOR_TYPE_STEP_DETECTOR 18 |
| #define SENSOR_TYPE_STEP_COUNTER 19 |
| #define SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR 20 |
| |
| enum LIS3DH_AXIS { |
| AXIS_X = 0, |
| AXIS_Y, |
| AXIS_Z, |
| AXIS_XYZ, |
| }; |
| |
| enum LIS3DH_THRES { |
| AXIS_THRESHOLD_H = 0, |
| AXIS_THRESHOLD_L, |
| AXIS_BIAS, |
| }; |
| |
| #define AXIS_FACTOR 0 |
| #define AXIS_OFFSET 1 |
| |
| |
| struct cal_result_t { |
| union { |
| |
| struct { |
| int offset_x; /*axis offset of x axis*/ |
| int offset_y; /*axis offset of x axis*/ |
| int offset_z; /*axis offset of x axis*/ |
| }; |
| struct { |
| int threshold_h; /*proximity threshold_h*/ |
| int threshold_l; /*proximity threshold_l*/ |
| int bias; /*proximity measure data noise*/ |
| }; |
| int offset[3]; |
| }; |
| int factor; /*light sensor factor for real ligt strength*/ |
| int range; |
| struct cal_result_t *node; |
| }; |
| |
| /** |
| * struct sensors_classdev - hold the sensor general parameters and APIs |
| * @dev: The device to register. |
| * @node: The list for the all the sensor drivers. |
| * @name: Name of this sensor. |
| * @vendor: The vendor of the hardware part. |
| * @handle: The handle that identifies this sensors. |
| * @type: The sensor type. |
| * @max_range: The maximum range of this sensor's value in SI units. |
| * @resolution: The smallest difference between two values reported by |
| * this sensor. |
| * @sensor_power: The rough estimate of this sensor's power consumption |
| * in mA. |
| * @min_delay: This value depends on the trigger mode: |
| * continuous: minimum period allowed in microseconds |
| * on-change : 0 |
| * one-shot :-1 |
| * special : 0, unless otherwise noted |
| * @fifo_reserved_event_count: The number of events reserved for this sensor |
| * in the batch mode FIFO. |
| * @fifo_max_event_count: The maximum number of events of this sensor |
| * that could be batched. |
| * @max_delay: The slowest rate the sensor supports in millisecond. |
| * @flags: Should be '1' if the sensor is a wake up sensor. |
| * set it to '0' otherwise. |
| * @enabled: Store the sensor driver enable status. |
| * @delay_msec: Store the sensor driver delay value. The data unit is |
| * millisecond. |
| * @wakeup: Indicate if the wake up interrupt has been enabled. |
| * @max_latency: Max report latency in millisecond |
| * @sensors_enable: The handle for enable and disable sensor. |
| * @sensors_poll_delay: The handle for set the sensor polling delay time. |
| * @sensors_set_latency:Set the max report latency of the sensor. |
| * @sensors_flush: Flush sensor events in FIFO and report it to user space. |
| * @params The sensor calibrate string format params up to userspace. |
| * @cal_result The sensor calibrate parameters, cal_result is a struct for sensor. |
| */ |
| struct sensors_classdev { |
| struct device *dev; |
| struct list_head node; |
| const char *name; |
| const char *vendor; |
| int version; |
| int handle; |
| int type; |
| const char *max_range; |
| const char *resolution; |
| const char *sensor_power; |
| int min_delay; |
| int fifo_reserved_event_count; |
| int fifo_max_event_count; |
| int32_t max_delay; |
| uint32_t flags; |
| |
| unsigned int enabled; |
| unsigned int delay_msec; |
| unsigned int wakeup; |
| unsigned int max_latency; |
| char *params; |
| struct cal_result_t cal_result; |
| /* enable and disable the sensor handle*/ |
| int (*sensors_enable)(struct sensors_classdev *sensors_cdev, |
| unsigned int enabled); |
| int (*sensors_poll_delay)(struct sensors_classdev *sensors_cdev, |
| unsigned int delay_msec); |
| int (*sensors_self_test)(struct sensors_classdev *sensors_cdev); |
| int (*sensors_set_latency)(struct sensors_classdev *sensor_cdev, |
| unsigned int max_latency); |
| int (*sensors_enable_wakeup)(struct sensors_classdev *sensor_cdev, |
| unsigned int enable); |
| int (*sensors_flush)(struct sensors_classdev *sensors_cdev); |
| int (*sensors_calibrate)(struct sensors_classdev *sensor_cdev, |
| int axis, int apply_now); |
| int (*sensors_write_cal_params)(struct sensors_classdev |
| *sensor_cdev, struct cal_result_t *cal_result); |
| }; |
| |
| extern int sensors_classdev_register(struct device *parent, |
| struct sensors_classdev *sensors_cdev); |
| extern void sensors_classdev_unregister(struct sensors_classdev *sensors_cdev); |
| |
| #endif /* __LINUX_SENSORS_H_INCLUDED */ |