/* 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