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/******************** (C) COPYRIGHT 2010 STMicroelectronics ********************
*
* File Name : l3g4200d.c
* Authors : MH - C&I BU - Application Team
* : Carmine Iascone (carmine.iascone@st.com)
* : Matteo Dameno (matteo.dameno@st.com)
* Version : V 0.2
* Date : 09/04/2010
* Description : L3G4200D digital output gyroscope sensor API
*
********************************************************************************
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* THE PRESENT SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES
* OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, FOR THE SOLE
* PURPOSE TO SUPPORT YOUR APPLICATION DEVELOPMENT.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* THIS SOFTWARE IS SPECIFICALLY DESIGNED FOR EXCLUSIVE USE WITH ST PARTS.
*
********************************************************************************
* REVISON HISTORY
*
* VERSION | DATE | AUTHORS | DESCRIPTION
*
* 0.1 | 29/01/2010 | Carmine Iascone | First Release
*
* 0.2 | 09/04/2010 | Carmine Iascone | Updated the struct l3g4200d_t
*
*******************************************************************************/
#ifndef __L3G4200D_H__
#define __L3G4200D_H__
#include <linux/ioctl.h> /* For IOCTL macros */
/** This define controls compilation of the master device interface */
/*#define L3G4200D_MASTER_DEVICE*/
#define L3G4200D_IOCTL_BASE 77
#define L3G4200D_IOCTL_SET_DELAY _IOW(L3G4200D_IOCTL_BASE, 0, int)
#define L3G4200D_IOCTL_GET_DELAY _IOR(L3G4200D_IOCTL_BASE, 1, int)
#define L3G4200D_IOCTL_SET_ENABLE _IOW(L3G4200D_IOCTL_BASE, 2, int)
#define L3G4200D_IOCTL_GET_ENABLE _IOR(L3G4200D_IOCTL_BASE, 3, int)
#define L3G4200D_IOCTL_GET_CALIBRATION _IOR(L3G4200D_IOCTL_BASE, 4, int[3])
#define L3G4200D_FS_250DPS 0x00
#define L3G4200D_FS_500DPS 0x10
#define L3G4200D_FS_2000DPS 0x30
#define PM_OFF 0x00
#define PM_NORMAL 0x08
#define ENABLE_ALL_AXES 0x07
/* l3g4200d gyroscope registers */
#define GYRO_WHO_AM_I 0x0F
#define GYRO_CTRL_REG1 0x20 /* power control reg */
#define GYRO_CTRL_REG2 0x21 /* power control reg */
#define GYRO_CTRL_REG3 0x22 /* power control reg */
#define GYRO_CTRL_REG4 0x23 /* interrupt control reg */
#define GYRO_CTRL_REG5 0x24 /* interrupt control reg */
#define GYRO_DATA_REG 0x28
#define GYRO_INT_SRC 0x31
/*status*/
#define L3G4200D_SUSPEND 2
#define L3G4200D_OPEN 1
#define L3G4200D_CLOSE 0
#define ODR100_BW12_5 0x00 /* ODR = 100Hz; BW = 12.5Hz */
#define ODR100_BW25 0x10 /* ODR = 100Hz; BW = 25Hz */
#define ODR200_BW12_5 0x40 /* ODR = 200Hz; BW = 12.5Hz */
#define ODR200_BW25 0x50 /* ODR = 200Hz; BW = 25Hz */
#define ODR200_BW50 0x60 /* ODR = 200Hz; BW = 50Hz */
#define ODR400_BW25 0x90 /* ODR = 400Hz; BW = 25Hz */
#define ODR400_BW50 0xA0 /* ODR = 400Hz; BW = 50Hz */
#define ODR400_BW110 0xB0 /* ODR = 400Hz; BW = 110Hz */
#define ODR800_BW50 0xE0 /* ODR = 800Hz; BW = 50Hz */
#define ODR800_BW100 0xF0 /* ODR = 800Hz; BW = 100Hz */
#define L3G4200D_REG_WHO_AM_I 0x0f
#define L3G4200D_REG_CTRL_REG1 0x20
#define ACTIVE_MASK 0x08
#define GYRO_DEVID_L3G4200D 0xD3
#define GYRO_DEVID_L3G20D 0xD4
#ifdef __KERNEL__
struct l3g4200d_platform_data {
u8 fs_range;
u8 axis_map_x;
u8 axis_map_y;
u8 axis_map_z;
u8 negate_x;
u8 negate_y;
u8 negate_z;
signed char orientation[9];
int x_min;
int y_min;
int z_min;
int (*init)(void);
void (*exit)(void);
int (*power_on)(void);
int (*power_off)(void);
};
#endif /* __KERNEL__ */
struct l3g4200d_axis {
int x;
int y;
int z;
};
struct l3g4200d_data {
char status;
char curr_tate;
unsigned int devid;
struct input_dev *input_dev;
struct i2c_client *client;
struct work_struct work;
struct delayed_work delaywork; /*report second event*/
struct l3g4200d_platform_data *pdata;
struct l3g4200d_axis axis;
};
#define GSENSOR_DEV_PATH "/dev/gyrosensors"
#endif /* __L3G4200D_H__ */
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