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/*
* (C) Copyright 2013 Bosch Sensortec GmbH * All Rights Reserved
*
* This software program is licensed subject to the GNU General Public License
* (GPL).Version 2,June 1991, available at http://www.fsf.org/copyleft/gpl.html
*
* @date Sep 19th, 2012
* @version v1.0
* @brief Common APIs for Bosch MEMS sensor drivers
*/
#ifndef __BOSCH_SENSOR_COMMON_H
#define __BOSCH_SENSOR_COMMON_H
#ifdef __KERNEL__
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/unistd.h>
#include <linux/types.h>
#include <linux/string.h>
#else
#include <unistd.h>
#include <sys/types.h>
#include <string.h>
#endif
/*!
* @Description:
* definitions of placement of sensors
* P0 - P3: view from top of device
* P4 - P7: view from bottom of device
*
* P0 / P4:
* Y of device aligned with Y of OS (i.e: Android)
* y
* ^
* |
* |
* |
* o------> x
*
*
* P1 / P5:
* Y of device aligned with Y of OS (i.e.: Android)
* rotated by 90 degrees clockwise
*
* o------> y
* |
* |
* |
* v x
*
*
* P2 / P6:
* Y of device aligned with Y of OS (i.e.: Android)
* rotated by 180 degrees clockwise
*
* x <------o
* |
* |
* |
* v
* y
*
*
* P3 / P7:
* Y of device aligned with Y of OS (i.e.: Android)
* rotated by 270 degrees clockwise
*
* x
* ^
* |
* |
* |
* y <------o
*
*/
struct bosch_sensor_specific {
char *name;
/* 0 to 7 */
unsigned int place:3;
int irq;
};
/*!
* we use a typedef to hide the detail,
* because this type might be changed
*/
struct bosch_sensor_axis_remap {
/* src means which source will be mapped to target x, y, z axis */
/* if an target OS axis is remapped from (-)x,
* src is 0, sign_* is (-)1 */
/* if an target OS axis is remapped from (-)y,
* src is 1, sign_* is (-)1 */
/* if an target OS axis is remapped from (-)z,
* src is 2, sign_* is (-)1 */
int src_x:3;
int src_y:3;
int src_z:3;
int sign_x:2;
int sign_y:2;
int sign_z:2;
};
struct bosch_sensor_data {
union {
int32_t v[3];
struct {
int32_t x;
int32_t y;
int32_t z;
};
};
};
void bst_remap_sensor_data(struct bosch_sensor_data *data,
const struct bosch_sensor_axis_remap *remap);
void bst_remap_sensor_data_dft_tab(struct bosch_sensor_data *data,
int place);
#define BOSCH_SENSOR_PLACE_UNKNOWN (-1)
#endif
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