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/* include/linux/ami304.h - AMI304 compass driver
*
* Copyright (C) 2009 AMIT Technology Inc.
* Author: Kyle Chen <sw-support@amit-inc.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
/*
* Definitions for ami304 compass chip.
*/
#ifndef AMI304_H
#define AMI304_H
#include <linux/ioctl.h>
//#include <asm-arm/arch/regs-gpio.h>
#define AMI304_I2C_ADDRESS 0x1E //new Addr=0x0E(Low), old Addr=0x0F(High)
/* AMI304 Internal Register Address (Please refer to AMI304 Specifications) */
#define AMI304_REG_CTRL1 0x1B
#define AMI304_REG_CTRL2 0x1C
#define AMI304_REG_CTRL3 0x1D
#define AMI304_REG_DATAXH 0x10
#define AMI304_REG_DATAXL 0x11
#define AMI304_REG_DATAYH 0x12
#define AMI304_REG_DATAYL 0x13
#define AMI304_REG_DATAZH 0x14
#define AMI304_REG_DATAZL 0x15
#define AMI304_REG_WIA 0x0F
/* AMI304 Control Bit (Please refer to AMI304 Specifications) */
#define AMI304_CTRL1_PC1 0x80
#define AMI304_CTRL1_FS1_NORMAL 0x00 //Normal
#define AMI304_CTRL1_FS1_FORCE 0x02 //Force
#define AMI304_CTRL1_ODR1 0x10 //20SPS(20HZ)
#define AMI304_CTRL2_DREN 0x08
#define AMI304_CTRL2_DRP 0x04
#define AMI304_CTRL3_NOFORCE_BIT 0x00
#define AMI304_CTRL3_FORCE_BIT 0x40
#define AMI304_CTRL3_B0_LO_CLR 0x00
#define AMI304_BUFSIZE 256
#define AMI304_NORMAL_MODE 0
#define AMI304_FORCE_MODE 1
#define AMI304_IRQ IRQ_EINT9
// conversion of magnetic data to nT units
#define CONVERT_M 25
#define ORIENTATION_ACCURACY_RATE 10
#endif
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