drivers/misc/mediatek/magnetometer/bmm056-new/bmm056.h

   1 /* bmm050.c - bmm050 compass driver
   2  *
   3  *
   4  * This software program is licensed subject to the GNU General Public License
   5  * (GPL).Version 2,June 1991, available at http://www.fsf.org/copyleft/gpl.html
   6
   7  * (C) Copyright 2011 Bosch Sensortec GmbH
   8  * All Rights Reserved
   9  */
  10
  11 /*
  12  * Definitions for bmm050 magnetic sensor chip.
  13  */
  14 #ifndef __BMM050_H__
  15 #define __BMM050_H__
  16
  17 #include <linux/ioctl.h>
  18
  19 #define CALIBRATION_DATA_SIZE   12
  20
  21 /* 7-bit addr:
  22 *       0x12 (SDO connected to GND, CSB2 connected to VDDIO)
  23 *       0x13 (SDO connected to VDDIO, CSB2 connected to VDDIO)
  24 */
  25 #define BMM050_I2C_ADDR         0x13
  26
  27 // conversion of magnetic data (for bmm050) to uT units
  28 // conversion of magnetic data to uT units
  29 // 32768 = 1Guass = 100 uT
  30 // 100 / 32768 = 25 / 8096
  31 // 65536 = 360Degree
  32 // 360 / 65536 = 45 / 8192
  33
  34
  35 #define CONVERT_M                       1
  36 #define CONVERT_M_DIV           4
  37 #define CONVERT_O                       1
  38 #define CONVERT_O_DIV           71              //(C_PI_F32X * AXIS_RESOLUTION_FACTOR / 180)
  39 #define CONVERT_G                       1
  40 #define CONVERT_G_DIV           938
  41 #define CONVERT_VRV                     1
  42 #define CONVERT_VRV_DIV 16384
  43
  44 #endif /* __BMM050_H__ */
  45