include/linux/input/adxl34x.h - kernel/msm-4.9 - Gitiles

 /*
  * include/linux/input/adxl34x.h
  *
  * Digital Accelerometer characteristics are highly application specific
  * and may vary between boards and models. The platform_data for the
  * device's "struct device" holds this information.
  *
  * Copyright 2009 Analog Devices Inc.
  *
  * Licensed under the GPL-2 or later.
  */

 #ifndef __LINUX_INPUT_ADXL34X_H__
 #define __LINUX_INPUT_ADXL34X_H__

 struct adxl34x_platform_data {

 	/*
 	 * X,Y,Z Axis Offset:
 	 * offer user offset adjustments in twoscompliment
 	 * form with a scale factor of 15.6 mg/LSB (i.e. 0x7F = +2 g)
 	 */

 	s8 x_axis_offset;
 	s8 y_axis_offset;
 	s8 z_axis_offset;

 	/*
 	 * TAP_X/Y/Z Enable: Setting TAP_X, Y, or Z Enable enables X,
 	 * Y, or Z participation in Tap detection. A '0' excludes the
 	 * selected axis from participation in Tap detection.
 	 * Setting the SUPPRESS bit suppresses Double Tap detection if
 	 * acceleration greater than tap_threshold is present between
 	 * taps.
 	 */

 #define ADXL_SUPPRESS	(1 << 3)
 #define ADXL_TAP_X_EN	(1 << 2)
 #define ADXL_TAP_Y_EN	(1 << 1)
 #define ADXL_TAP_Z_EN	(1 << 0)

 	u8 tap_axis_control;

 	/*
 	 * tap_threshold:
 	 * holds the threshold value for tap detection/interrupts.
 	 * The data format is unsigned. The scale factor is 62.5 mg/LSB
 	 * (i.e. 0xFF = +16 g). A zero value may result in undesirable
 	 * behavior if Tap/Double Tap is enabled.
 	 */

 	u8 tap_threshold;

 	/*
 	 * tap_duration:
 	 * is an unsigned time value representing the maximum
 	 * time that an event must be above the tap_threshold threshold
 	 * to qualify as a tap event. The scale factor is 625 us/LSB. A zero
 	 * value will prevent Tap/Double Tap functions from working.
 	 */

 	u8 tap_duration;

 	/*
 	 * tap_latency:
 	 * is an unsigned time value representing the wait time
 	 * from the detection of a tap event to the opening of the time
 	 * window tap_window for a possible second tap event. The scale
 	 * factor is 1.25 ms/LSB. A zero value will disable the Double Tap
 	 * function.
 	 */

 	u8 tap_latency;

 	/*
 	 * tap_window:
 	 * is an unsigned time value representing the amount
 	 * of time after the expiration of tap_latency during which a second
 	 * tap can begin. The scale factor is 1.25 ms/LSB. A zero value will
 	 * disable the Double Tap function.
 	 */

 	u8 tap_window;

 	/*
 	 * act_axis_control:
 	 * X/Y/Z Enable: A '1' enables X, Y, or Z participation in activity
 	 * or inactivity detection. A '0' excludes the selected axis from
 	 * participation. If all of the axes are excluded, the function is
 	 * disabled.
 	 * AC/DC: A '0' = DC coupled operation and a '1' = AC coupled
 	 * operation. In DC coupled operation, the current acceleration is
 	 * compared with activity_threshold and inactivity_threshold directly
 	 * to determine whether activity or inactivity is detected. In AC
 	 * coupled operation for activity detection, the acceleration value
 	 * at the start of activity detection is taken as a reference value.
 	 * New samples of acceleration are then compared to this
 	 * reference value and if the magnitude of the difference exceeds
 	 * activity_threshold the device will trigger an activity interrupt. In
 	 * AC coupled operation for inactivity detection, a reference value
 	 * is used again for comparison and is updated whenever the
 	 * device exceeds the inactivity threshold. Once the reference
 	 * value is selected, the device compares the magnitude of the
 	 * difference between the reference value and the current
 	 * acceleration with inactivity_threshold. If the difference is below
 	 * inactivity_threshold for a total of inactivity_time, the device is
 	 * considered inactive and the inactivity interrupt is triggered.
 	 */

 #define ADXL_ACT_ACDC		(1 << 7)
 #define ADXL_ACT_X_EN		(1 << 6)
 #define ADXL_ACT_Y_EN		(1 << 5)
 #define ADXL_ACT_Z_EN		(1 << 4)
 #define ADXL_INACT_ACDC		(1 << 3)
 #define ADXL_INACT_X_EN		(1 << 2)
 #define ADXL_INACT_Y_EN		(1 << 1)
 #define ADXL_INACT_Z_EN		(1 << 0)

 	u8 act_axis_control;

 	/*
 	 * activity_threshold:
 	 * holds the threshold value for activity detection.
 	 * The data format is unsigned. The scale factor is
 	 * 62.5 mg/LSB. A zero value may result in undesirable behavior if
 	 * Activity interrupt is enabled.
 	 */

 	u8 activity_threshold;

 	/*
 	 * inactivity_threshold:
 	 * holds the threshold value for inactivity
 	 * detection. The data format is unsigned. The scale
 	 * factor is 62.5 mg/LSB. A zero value may result in undesirable
 	 * behavior if Inactivity interrupt is enabled.
 	 */

 	u8 inactivity_threshold;

 	/*
 	 * inactivity_time:
 	 * is an unsigned time value representing the
 	 * amount of time that acceleration must be below the value in
 	 * inactivity_threshold for inactivity to be declared. The scale factor
 	 * is 1 second/LSB. Unlike the other interrupt functions, which
 	 * operate on unfiltered data, the inactivity function operates on the
 	 * filtered output data. At least one output sample must be
 	 * generated for the inactivity interrupt to be triggered. This will
 	 * result in the function appearing un-responsive if the
 	 * inactivity_time register is set with a value less than the time
 	 * constant of the Output Data Rate. A zero value will result in an
 	 * interrupt when the output data is below inactivity_threshold.
 	 */

 	u8 inactivity_time;

 	/*
 	 * free_fall_threshold:
 	 * holds the threshold value for Free-Fall detection.
 	 * The data format is unsigned. The root-sum-square(RSS) value
 	 * of all axes is calculated and compared to the value in
 	 * free_fall_threshold to determine if a free fall event may be
 	 * occurring.  The scale factor is 62.5 mg/LSB. A zero value may
 	 * result in undesirable behavior if Free-Fall interrupt is
 	 * enabled. Values between 300 and 600 mg (0x05 to 0x09) are
 	 * recommended.
 	 */

 	u8 free_fall_threshold;

 	/*
 	 * free_fall_time:
 	 * is an unsigned time value representing the minimum
 	 * time that the RSS value of all axes must be less than
 	 * free_fall_threshold to generate a Free-Fall interrupt. The
 	 * scale factor is 5 ms/LSB. A zero value may result in
 	 * undesirable behavior if Free-Fall interrupt is enabled.
 	 * Values between 100 to 350 ms (0x14 to 0x46) are recommended.
 	 */

 	u8 free_fall_time;

 	/*
 	 * data_rate:
 	 * Selects device bandwidth and output data rate.
 	 * RATE = 3200 Hz / (2^(15 - x)). Default value is 0x0A, or 100 Hz
 	 * Output Data Rate. An Output Data Rate should be selected that
 	 * is appropriate for the communication protocol and frequency
 	 * selected. Selecting too high of an Output Data Rate with a low
 	 * communication speed will result in samples being discarded.
 	 */

 	u8 data_rate;

 	/*
 	 * data_range:
 	 * FULL_RES: When this bit is set with the device is
 	 * in Full-Resolution Mode, where the output resolution increases
 	 * with RANGE to maintain a 4 mg/LSB scale factor. When this
 	 * bit is cleared the device is in 10-bit Mode and RANGE determine the
 	 * maximum g-Range and scale factor.
 	 */

 #define ADXL_FULL_RES		(1 << 3)
 #define ADXL_RANGE_PM_2g	0
 #define ADXL_RANGE_PM_4g	1
 #define ADXL_RANGE_PM_8g	2
 #define ADXL_RANGE_PM_16g	3

 	u8 data_range;

 	/*
 	 * low_power_mode:
 	 * A '0' = Normal operation and a '1' = Reduced
 	 * power operation with somewhat higher noise.
 	 */

 	u8 low_power_mode;

 	/*
 	 * power_mode:
 	 * LINK: A '1' with both the activity and inactivity functions
 	 * enabled will delay the start of the activity function until
 	 * inactivity is detected. Once activity is detected, inactivity
 	 * detection will begin and prevent the detection of activity. This
 	 * bit serially links the activity and inactivity functions. When '0'
 	 * the inactivity and activity functions are concurrent. Additional
 	 * information can be found in the Application section under Link
 	 * Mode.
 	 * AUTO_SLEEP: A '1' sets the ADXL34x to switch to Sleep Mode
 	 * when inactivity (acceleration has been below inactivity_threshold
 	 * for at least inactivity_time) is detected and the LINK bit is set.
 	 * A '0' disables automatic switching to Sleep Mode. See SLEEP
 	 * for further description.
 	 */

 #define ADXL_LINK	(1 << 5)
 #define ADXL_AUTO_SLEEP	(1 << 4)

 	u8 power_mode;

 	/*
 	 * fifo_mode:
 	 * BYPASS The FIFO is bypassed
 	 * FIFO   FIFO collects up to 32 values then stops collecting data
 	 * STREAM FIFO holds the last 32 data values. Once full, the FIFO's
 	 *        oldest data is lost as it is replaced with newer data
 	 *
 	 * DEFAULT should be ADXL_FIFO_STREAM
 	 */

 #define ADXL_FIFO_BYPASS	0
 #define ADXL_FIFO_FIFO		1
 #define ADXL_FIFO_STREAM	2

 	u8 fifo_mode;

 	/*
 	 * watermark:
 	 * The Watermark feature can be used to reduce the interrupt load
 	 * of the system. The FIFO fills up to the value stored in watermark
 	 * [1..32] and then generates an interrupt.
 	 * A '0' disables the watermark feature.
 	 */

 	u8 watermark;

 	u32 ev_type;	/* EV_ABS or EV_REL */

 	u32 ev_code_x;	/* ABS_X,Y,Z or REL_X,Y,Z */
 	u32 ev_code_y;	/* ABS_X,Y,Z or REL_X,Y,Z */
 	u32 ev_code_z;	/* ABS_X,Y,Z or REL_X,Y,Z */

 	/*
 	 * A valid BTN or KEY Code; use tap_axis_control to disable
 	 * event reporting
 	 */

 	u32 ev_code_tap[3];	/* EV_KEY {X-Axis, Y-Axis, Z-Axis} */

 	/*
 	 * A valid BTN or KEY Code for Free-Fall or Activity enables
 	 * input event reporting. A '0' disables the Free-Fall or
 	 * Activity reporting.
 	 */

 	u32 ev_code_ff;	/* EV_KEY */
 	u32 ev_code_act_inactivity;	/* EV_KEY */

 	/*
 	 * Use ADXL34x INT2 instead of INT1
 	 */
 	u8 use_int2;

 	/*
 	 * ADXL346 only ORIENTATION SENSING feature
 	 * The orientation function of the ADXL346 reports both 2-D and
 	 * 3-D orientation concurrently.
 	 */

 #define ADXL_EN_ORIENTATION_2D		1
 #define ADXL_EN_ORIENTATION_3D		2
 #define ADXL_EN_ORIENTATION_2D_3D	3

 	u8 orientation_enable;

 	/*
 	 * The width of the deadzone region between two or more
 	 * orientation positions is determined by setting the Deadzone
 	 * value. The deadzone region size can be specified with a
 	 * resolution of 3.6deg. The deadzone angle represents the total
 	 * angle where the orientation is considered invalid.
 	 */

 #define ADXL_DEADZONE_ANGLE_0p0		0	/* !!!0.0 [deg] */
 #define ADXL_DEADZONE_ANGLE_3p6		1	/* 3.6 [deg] */
 #define ADXL_DEADZONE_ANGLE_7p2		2	/* 7.2 [deg] */
 #define ADXL_DEADZONE_ANGLE_10p8	3	/* 10.8 [deg] */
 #define ADXL_DEADZONE_ANGLE_14p4	4	/* 14.4 [deg] */
 #define ADXL_DEADZONE_ANGLE_18p0	5	/* 18.0 [deg] */
 #define ADXL_DEADZONE_ANGLE_21p6	6	/* 21.6 [deg] */
 #define ADXL_DEADZONE_ANGLE_25p2	7	/* 25.2 [deg] */

 	u8 deadzone_angle;

 	/*
 	 * To eliminate most human motion such as walking or shaking,
 	 * a Divisor value should be selected to effectively limit the
 	 * orientation bandwidth. Set the depth of the filter used to
 	 * low-pass filter the measured acceleration for stable
 	 * orientation sensing
 	 */

 #define ADXL_LP_FILTER_DIVISOR_2	0
 #define ADXL_LP_FILTER_DIVISOR_4	1
 #define ADXL_LP_FILTER_DIVISOR_8	2
 #define ADXL_LP_FILTER_DIVISOR_16	3
 #define ADXL_LP_FILTER_DIVISOR_32	4
 #define ADXL_LP_FILTER_DIVISOR_64	5
 #define ADXL_LP_FILTER_DIVISOR_128	6
 #define ADXL_LP_FILTER_DIVISOR_256	7

 	u8 divisor_length;

 	u32 ev_codes_orient_2d[4];	/* EV_KEY {+X, -X, +Y, -Y} */
 	u32 ev_codes_orient_3d[6];	/* EV_KEY {+Z, +Y, +X, -X, -Y, -Z} */
 };
 #endif
	/*
	* include/linux/input/adxl34x.h
	*
	* Digital Accelerometer characteristics are highly application specific
	* and may vary between boards and models. The platform_data for the
	* device's "struct device" holds this information.
	*
	* Copyright 2009 Analog Devices Inc.
	*
	* Licensed under the GPL-2 or later.
	*/

	#ifndef __LINUX_INPUT_ADXL34X_H__
	#define __LINUX_INPUT_ADXL34X_H__

	struct adxl34x_platform_data {

	/*
	* X,Y,Z Axis Offset:
	* offer user offset adjustments in twoscompliment
	* form with a scale factor of 15.6 mg/LSB (i.e. 0x7F = +2 g)
	*/

	s8 x_axis_offset;
	s8 y_axis_offset;
	s8 z_axis_offset;

	/*
	* TAP_X/Y/Z Enable: Setting TAP_X, Y, or Z Enable enables X,
	* Y, or Z participation in Tap detection. A '0' excludes the
	* selected axis from participation in Tap detection.
	* Setting the SUPPRESS bit suppresses Double Tap detection if
	* acceleration greater than tap_threshold is present between
	* taps.
	*/

	#define ADXL_SUPPRESS (1 << 3)
	#define ADXL_TAP_X_EN (1 << 2)
	#define ADXL_TAP_Y_EN (1 << 1)
	#define ADXL_TAP_Z_EN (1 << 0)

	u8 tap_axis_control;

	/*
	* tap_threshold:
	* holds the threshold value for tap detection/interrupts.
	* The data format is unsigned. The scale factor is 62.5 mg/LSB
	* (i.e. 0xFF = +16 g). A zero value may result in undesirable
	* behavior if Tap/Double Tap is enabled.
	*/

	u8 tap_threshold;

	/*
	* tap_duration:
	* is an unsigned time value representing the maximum
	* time that an event must be above the tap_threshold threshold
	* to qualify as a tap event. The scale factor is 625 us/LSB. A zero
	* value will prevent Tap/Double Tap functions from working.
	*/

	u8 tap_duration;

	/*
	* tap_latency:
	* is an unsigned time value representing the wait time
	* from the detection of a tap event to the opening of the time
	* window tap_window for a possible second tap event. The scale
	* factor is 1.25 ms/LSB. A zero value will disable the Double Tap
	* function.
	*/

	u8 tap_latency;

	/*
	* tap_window:
	* is an unsigned time value representing the amount
	* of time after the expiration of tap_latency during which a second
	* tap can begin. The scale factor is 1.25 ms/LSB. A zero value will
	* disable the Double Tap function.
	*/

	u8 tap_window;

	/*
	* act_axis_control:
	* X/Y/Z Enable: A '1' enables X, Y, or Z participation in activity
	* or inactivity detection. A '0' excludes the selected axis from
	* participation. If all of the axes are excluded, the function is
	* disabled.
	* AC/DC: A '0' = DC coupled operation and a '1' = AC coupled
	* operation. In DC coupled operation, the current acceleration is
	* compared with activity_threshold and inactivity_threshold directly
	* to determine whether activity or inactivity is detected. In AC
	* coupled operation for activity detection, the acceleration value
	* at the start of activity detection is taken as a reference value.
	* New samples of acceleration are then compared to this
	* reference value and if the magnitude of the difference exceeds
	* activity_threshold the device will trigger an activity interrupt. In
	* AC coupled operation for inactivity detection, a reference value
	* is used again for comparison and is updated whenever the
	* device exceeds the inactivity threshold. Once the reference
	* value is selected, the device compares the magnitude of the
	* difference between the reference value and the current
	* acceleration with inactivity_threshold. If the difference is below
	* inactivity_threshold for a total of inactivity_time, the device is
	* considered inactive and the inactivity interrupt is triggered.
	*/

	#define ADXL_ACT_ACDC (1 << 7)
	#define ADXL_ACT_X_EN (1 << 6)
	#define ADXL_ACT_Y_EN (1 << 5)
	#define ADXL_ACT_Z_EN (1 << 4)
	#define ADXL_INACT_ACDC (1 << 3)
	#define ADXL_INACT_X_EN (1 << 2)
	#define ADXL_INACT_Y_EN (1 << 1)
	#define ADXL_INACT_Z_EN (1 << 0)

	u8 act_axis_control;

	/*
	* activity_threshold:
	* holds the threshold value for activity detection.
	* The data format is unsigned. The scale factor is
	* 62.5 mg/LSB. A zero value may result in undesirable behavior if
	* Activity interrupt is enabled.
	*/

	u8 activity_threshold;

	/*
	* inactivity_threshold:
	* holds the threshold value for inactivity
	* detection. The data format is unsigned. The scale
	* factor is 62.5 mg/LSB. A zero value may result in undesirable
	* behavior if Inactivity interrupt is enabled.
	*/

	u8 inactivity_threshold;

	/*
	* inactivity_time:
	* is an unsigned time value representing the
	* amount of time that acceleration must be below the value in
	* inactivity_threshold for inactivity to be declared. The scale factor
	* is 1 second/LSB. Unlike the other interrupt functions, which
	* operate on unfiltered data, the inactivity function operates on the
	* filtered output data. At least one output sample must be
	* generated for the inactivity interrupt to be triggered. This will
	* result in the function appearing un-responsive if the
	* inactivity_time register is set with a value less than the time
	* constant of the Output Data Rate. A zero value will result in an
	* interrupt when the output data is below inactivity_threshold.
	*/

	u8 inactivity_time;

	/*
	* free_fall_threshold:
	* holds the threshold value for Free-Fall detection.
	* The data format is unsigned. The root-sum-square(RSS) value
	* of all axes is calculated and compared to the value in
	* free_fall_threshold to determine if a free fall event may be
	* occurring. The scale factor is 62.5 mg/LSB. A zero value may
	* result in undesirable behavior if Free-Fall interrupt is
	* enabled. Values between 300 and 600 mg (0x05 to 0x09) are
	* recommended.
	*/

	u8 free_fall_threshold;

	/*
	* free_fall_time:
	* is an unsigned time value representing the minimum
	* time that the RSS value of all axes must be less than
	* free_fall_threshold to generate a Free-Fall interrupt. The
	* scale factor is 5 ms/LSB. A zero value may result in
	* undesirable behavior if Free-Fall interrupt is enabled.
	* Values between 100 to 350 ms (0x14 to 0x46) are recommended.
	*/

	u8 free_fall_time;

	/*
	* data_rate:
	* Selects device bandwidth and output data rate.
	* RATE = 3200 Hz / (2^(15 - x)). Default value is 0x0A, or 100 Hz
	* Output Data Rate. An Output Data Rate should be selected that
	* is appropriate for the communication protocol and frequency
	* selected. Selecting too high of an Output Data Rate with a low
	* communication speed will result in samples being discarded.
	*/

	u8 data_rate;

	/*
	* data_range:
	* FULL_RES: When this bit is set with the device is
	* in Full-Resolution Mode, where the output resolution increases
	* with RANGE to maintain a 4 mg/LSB scale factor. When this
	* bit is cleared the device is in 10-bit Mode and RANGE determine the
	* maximum g-Range and scale factor.
	*/

	#define ADXL_FULL_RES (1 << 3)
	#define ADXL_RANGE_PM_2g 0
	#define ADXL_RANGE_PM_4g 1
	#define ADXL_RANGE_PM_8g 2
	#define ADXL_RANGE_PM_16g 3

	u8 data_range;

	/*
	* low_power_mode:
	* A '0' = Normal operation and a '1' = Reduced
	* power operation with somewhat higher noise.
	*/

	u8 low_power_mode;

	/*
	* power_mode:
	* LINK: A '1' with both the activity and inactivity functions
	* enabled will delay the start of the activity function until
	* inactivity is detected. Once activity is detected, inactivity
	* detection will begin and prevent the detection of activity. This
	* bit serially links the activity and inactivity functions. When '0'
	* the inactivity and activity functions are concurrent. Additional
	* information can be found in the Application section under Link
	* Mode.
	* AUTO_SLEEP: A '1' sets the ADXL34x to switch to Sleep Mode
	* when inactivity (acceleration has been below inactivity_threshold
	* for at least inactivity_time) is detected and the LINK bit is set.
	* A '0' disables automatic switching to Sleep Mode. See SLEEP
	* for further description.
	*/

	#define ADXL_LINK (1 << 5)
	#define ADXL_AUTO_SLEEP (1 << 4)

	u8 power_mode;

	/*
	* fifo_mode:
	* BYPASS The FIFO is bypassed
	* FIFO FIFO collects up to 32 values then stops collecting data
	* STREAM FIFO holds the last 32 data values. Once full, the FIFO's
	* oldest data is lost as it is replaced with newer data
	*
	* DEFAULT should be ADXL_FIFO_STREAM
	*/

	#define ADXL_FIFO_BYPASS 0
	#define ADXL_FIFO_FIFO 1
	#define ADXL_FIFO_STREAM 2

	u8 fifo_mode;

	/*
	* watermark:
	* The Watermark feature can be used to reduce the interrupt load
	* of the system. The FIFO fills up to the value stored in watermark
	* [1..32] and then generates an interrupt.
	* A '0' disables the watermark feature.
	*/

	u8 watermark;

	u32 ev_type; /* EV_ABS or EV_REL */

	u32 ev_code_x; /* ABS_X,Y,Z or REL_X,Y,Z */
	u32 ev_code_y; /* ABS_X,Y,Z or REL_X,Y,Z */
	u32 ev_code_z; /* ABS_X,Y,Z or REL_X,Y,Z */

	/*
	* A valid BTN or KEY Code; use tap_axis_control to disable
	* event reporting
	*/

	u32 ev_code_tap[3]; /* EV_KEY {X-Axis, Y-Axis, Z-Axis} */

	/*
	* A valid BTN or KEY Code for Free-Fall or Activity enables
	* input event reporting. A '0' disables the Free-Fall or
	* Activity reporting.
	*/

	u32 ev_code_ff; /* EV_KEY */
	u32 ev_code_act_inactivity; /* EV_KEY */

	/*
	* Use ADXL34x INT2 instead of INT1
	*/
	u8 use_int2;

	/*
	* ADXL346 only ORIENTATION SENSING feature
	* The orientation function of the ADXL346 reports both 2-D and
	* 3-D orientation concurrently.
	*/

	#define ADXL_EN_ORIENTATION_2D 1
	#define ADXL_EN_ORIENTATION_3D 2
	#define ADXL_EN_ORIENTATION_2D_3D 3

	u8 orientation_enable;

	/*
	* The width of the deadzone region between two or more
	* orientation positions is determined by setting the Deadzone
	* value. The deadzone region size can be specified with a
	* resolution of 3.6deg. The deadzone angle represents the total
	* angle where the orientation is considered invalid.
	*/

	#define ADXL_DEADZONE_ANGLE_0p0 0 /* !!!0.0 [deg] */
	#define ADXL_DEADZONE_ANGLE_3p6 1 /* 3.6 [deg] */
	#define ADXL_DEADZONE_ANGLE_7p2 2 /* 7.2 [deg] */
	#define ADXL_DEADZONE_ANGLE_10p8 3 /* 10.8 [deg] */
	#define ADXL_DEADZONE_ANGLE_14p4 4 /* 14.4 [deg] */
	#define ADXL_DEADZONE_ANGLE_18p0 5 /* 18.0 [deg] */
	#define ADXL_DEADZONE_ANGLE_21p6 6 /* 21.6 [deg] */
	#define ADXL_DEADZONE_ANGLE_25p2 7 /* 25.2 [deg] */

	u8 deadzone_angle;

	/*
	* To eliminate most human motion such as walking or shaking,
	* a Divisor value should be selected to effectively limit the
	* orientation bandwidth. Set the depth of the filter used to
	* low-pass filter the measured acceleration for stable
	* orientation sensing
	*/

	#define ADXL_LP_FILTER_DIVISOR_2 0
	#define ADXL_LP_FILTER_DIVISOR_4 1
	#define ADXL_LP_FILTER_DIVISOR_8 2
	#define ADXL_LP_FILTER_DIVISOR_16 3
	#define ADXL_LP_FILTER_DIVISOR_32 4
	#define ADXL_LP_FILTER_DIVISOR_64 5
	#define ADXL_LP_FILTER_DIVISOR_128 6
	#define ADXL_LP_FILTER_DIVISOR_256 7

	u8 divisor_length;

	u32 ev_codes_orient_2d[4]; /* EV_KEY {+X, -X, +Y, -Y} */
	u32 ev_codes_orient_3d[6]; /* EV_KEY {+Z, +Y, +X, -X, -Y, -Z} */
	};
	#endif