drivers/misc/mediatek/magnetometer/af7133/af7133.h

   1 /* include/linux/af7133.h - AF7133 compass driver
   2  *
   3  *
   4  * This software is licensed under the terms of the GNU General Public
   5  * License version 2, as published by the Free Software Foundation, and
   6  * may be copied, distributed, and modified under those terms.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  */
  14
  15 /*
  16  * Definitions for af7133 compass chip.
  17  */
  18 #ifndef AF7133_H
  19 #define AF7133_H
  20
  21 #include <linux/ioctl.h>
  22
  23 #define AF7133_I2C_ADDRESS      0x1E  //7-bit address
  24 #define AF7133_BUFSIZE      6
  25
  26
  27 /*AF7133 register address*/
  28 #define AF7133_REG_DATA         0x00
  29 #define AF7133_REG_STATUS       0x06
  30 #define AF7133_REG_MODE         0x0B
  31 #define AF7133_REG_HF             0x10
  32 #define AF7133_REG_PCODE  0x16
  33 #define AF7133_REG_POR          0x18
  34 #define AF7133_REG_RATE         0x19
  35 #define AF7133_REG_CHIPID 0x1C
  36
  37
  38 /*AF7133 parameters*/
  39 #define AF7133_MODE_IDLE        0x00
  40 #define AF7133_MODE_WAKE        0x01
  41 #define AF7133_MODE_SINGLE  0x02
  42
  43 #define AF7133_HF_ENABLE        0x80
  44 #define AF7133_HF_DISABLE       0x00
  45
  46 #define AF7133_PCODE_VALUE  0x48
  47
  48 #define AF7133_POR_RESET    0x01
  49
  50 #define AF7133_RATE_10HZ  0x0C
  51 #define AF7133_RATE_25HZ        0x05
  52 #define AF7133_RATE_30HZ        0x04
  53
  54 // conversion of magnetic data (for AF7133) to uT units
  55 #define CONVERT_M                       5
  56 #define CONVERT_M_DIV           100
  57
  58 // conversion of orientation data to degree units
  59 #define CONVERT_O                       1
  60 #define CONVERT_O_DIV           1
  61
  62
  63
  64 #endif
  65