/*
 * Definitions for akm8975 compass chip.
 */
#ifndef AKM8975_H
#define AKM8975_H

#include <linux/ioctl.h>

#define AKM8975_I2C_NAME "akm8975"

/*! \name AK8975 operation mode
 \anchor AK8975_Mode
 Defines an operation mode of the AK8975.*/
/*! @{*/
#define AK8975_MODE_SNG_MEASURE	0x01
#define	AK8975_MODE_SELF_TEST	0x08
#define	AK8975_MODE_FUSE_ACCESS	0x0F
#define	AK8975_MODE_POWERDOWN	0x00
/*! @}*/

#define SENSOR_DATA_SIZE		8	/* Rx buffer size, i.e from ST1 to ST2 */
#define RWBUF_SIZE				16	/* Read/Write buffer size.*/


/*! \name AK8975 register address
\anchor AK8975_REG
Defines a register address of the AK8975.*/
/*! @{*/
#define AK8975_REG_WIA		0x00
#define AK8975_REG_INFO		0x01
#define AK8975_REG_ST1		0x02
#define AK8975_REG_HXL		0x03
#define AK8975_REG_HXH		0x04
#define AK8975_REG_HYL		0x05
#define AK8975_REG_HYH		0x06
#define AK8975_REG_HZL		0x07
#define AK8975_REG_HZH		0x08
#define AK8975_REG_ST2		0x09
#define AK8975_REG_CNTL		0x0A
#define AK8975_REG_RSV		0x0B
#define AK8975_REG_ASTC		0x0C
#define AK8975_REG_TS1		0x0D
#define AK8975_REG_TS2		0x0E
#define AK8975_REG_I2CDIS	0x0F
/*! @}*/

/*! \name AK8975 fuse-rom address
\anchor AK8975_FUSE
Defines a read-only address of the fuse ROM of the AK8975.*/
/*! @{*/
#define AK8975_FUSE_ASAX	0x10
#define AK8975_FUSE_ASAY	0x11
#define AK8975_FUSE_ASAZ	0x12
/*! @}*/


struct akm_platform_data {
	short m_layout[4][3][3];
	char project_name[64];
	char layout;
	char outbit;
	int gpio_DRDY;
	int gpio_RST;
};

#define COMPASS_IOCTL_MAGIC                   'c'
#define SENSOR_DATA_SIZE		8	/* Rx buffer size, i.e from ST1 to ST2 */

/* IOCTLs for AKM library */
#define ECS_IOCTL_WRITE                 _IOW(COMPASS_IOCTL_MAGIC, 0x01, char*)
#define ECS_IOCTL_READ                  _IOWR(COMPASS_IOCTL_MAGIC, 0x02, char*)
#define ECS_IOCTL_RESET      	        _IO(COMPASS_IOCTL_MAGIC, 0x03) /* NOT used in AK8975 */
#define ECS_IOCTL_SET_MODE              _IOW(COMPASS_IOCTL_MAGIC, 0x04, short)
#define ECS_IOCTL_GETDATA               _IOR(COMPASS_IOCTL_MAGIC, 0x05, char[SENSOR_DATA_SIZE])
#define ECS_IOCTL_SET_YPR               _IOW(COMPASS_IOCTL_MAGIC, 0x06, short[12])
#define ECS_IOCTL_GET_OPEN_STATUS       _IOR(COMPASS_IOCTL_MAGIC, 0x07, int)
#define ECS_IOCTL_GET_CLOSE_STATUS      _IOR(COMPASS_IOCTL_MAGIC, 0x08, int)
#define ECS_IOCTL_GET_LAYOUT        	_IOR(COMPASS_IOCTL_MAGIC, 0x09, char)
#define ECS_IOCTL_GET_ACCEL         	_IOR(COMPASS_IOCTL_MAGIC, 0x0A, short[3])
#define ECS_IOCTL_GET_OUTBIT        	_IOR(COMPASS_IOCTL_MAGIC, 0x0B, char)
#define ECS_IOCTL_GET_DELAY             _IOR(COMPASS_IOCTL_MAGIC, 0x30, short)
#define ECS_IOCTL_GET_PROJECT_NAME      _IOR(COMPASS_IOCTL_MAGIC, 0x0D, char[64])
#define ECS_IOCTL_GET_MATRIX            _IOR(COMPASS_IOCTL_MAGIC, 0x0E, short [4][3][3])
#define ECS_IOCTL_GET_PLATFORM_DATA     _IOR(COMPASS_IOCTL_MAGIC, 0x0E, struct akm_platform_data)


#endif