drivers/misc/mediatek/magnetometer/ami304_auto/ami304.h

   1 /* include/linux/ami304.h - AMI304 compass driver
   2  *
   3  * Copyright (C) 2009 AMIT Technology Inc.
   4  * Author: Kyle Chen <sw-support@amit-inc.com>
   5  *
   6  * This software is licensed under the terms of the GNU General Public
   7  * License version 2, as published by the Free Software Foundation, and
   8  * may be copied, distributed, and modified under those terms.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  */
  16
  17 /*
  18  * Definitions for ami304 compass chip.
  19  */
  20 #ifndef AMI304_H
  21 #define AMI304_H
  22
  23 #include <linux/ioctl.h>
  24 //#include <asm-arm/arch/regs-gpio.h>
  25 extern struct mag_hw* ami304_get_cust_mag_hw(void);
  26
  27 #define AMI304_I2C_ADDRESS                      0x1E  //new Addr=0x0E(Low), old Addr=0x0F(High)
  28
  29 /* AMI304 Internal Register Address  (Please refer to AMI304 Specifications) */
  30 #define AMI304_REG_CTRL1                        0x1B
  31 #define AMI304_REG_CTRL2                        0x1C
  32 #define AMI304_REG_CTRL3                        0x1D
  33 #define AMI304_REG_DATAXH                       0x10
  34 #define AMI304_REG_DATAXL                       0x11
  35 #define AMI304_REG_DATAYH                       0x12
  36 #define AMI304_REG_DATAYL                       0x13
  37 #define AMI304_REG_DATAZH                       0x14
  38 #define AMI304_REG_DATAZL                       0x15
  39 #define AMI304_REG_WIA                          0x0F
  40
  41 /* AMI304 Control Bit  (Please refer to AMI304 Specifications) */
  42 #define AMI304_CTRL1_PC1                        0x80
  43 #define AMI304_CTRL1_FS1_NORMAL                 0x00 //Normal
  44 #define AMI304_CTRL1_FS1_FORCE                  0x02 //Force
  45 #define AMI304_CTRL1_ODR1                       0x10 //20SPS(20HZ)
  46 #define AMI304_CTRL2_DREN                       0x08
  47 #define AMI304_CTRL2_DRP                        0x04
  48 #define AMI304_CTRL3_NOFORCE_BIT                0x00
  49 #define AMI304_CTRL3_FORCE_BIT                  0x40
  50 #define AMI304_CTRL3_B0_LO_CLR                  0x00
  51
  52 #define AMI304_BUFSIZE                          256
  53 #define AMI304_NORMAL_MODE                      0
  54 #define AMI304_FORCE_MODE                       1
  55 #define AMI304_IRQ                              IRQ_EINT9
  56
  57 // conversion of magnetic data to nT units
  58 #define CONVERT_M                       25
  59 #define ORIENTATION_ACCURACY_RATE                   10
  60
  61
  62 #endif