/*
 * Definitions for mma8452 compass chip.
 */
#ifndef MMA8452_H
#define MMA8452_H

#include <linux/ioctl.h>

/* Default register settings */
#define RBUFF_SIZE		12	/* Rx buffer size */

#define MMA8452_REG_STATUS   	    	0x0 //RO
#define MMA8452_REG_X_OUT_MSB       	0x1 //RO
#define MMA8452_REG_X_OUT_LSB       	0x2 //RO
#define MMA8452_REG_Y_OUT_MSB       	0x3 //RO
#define MMA8452_REG_Y_OUT_LSB       	0x4 //RO
#define MMA8452_REG_Z_OUT_MSB       	0x5 //RO
#define MMA8452_REG_Z_OUT_LSB       	0x6 //RO
#define MMA8452_REG_F_SETUP		       	0x9 //RW

#define MMA8452_REG_SYSMOD				0xB //RO
#define MMA8452_REG_INTSRC	    		0xC //RO
#define MMA8452_REG_WHO_AM_I      		0xD //RO
#define MMA8452_REG_XYZ_DATA_CFG		0xE //RW
#define MMA8452_REG_HP_FILTER_CUTOFF	0xF //RW
#define MMA8452_REG_PL_STATUS			0x10 //RO
#define MMA8452_REG_PL_CFG				0x11 //RW
#define MMA8452_REG_PL_COUNT			0x12 //RW
#define MMA8452_REG_PL_BF_ZCOMP			0x13 //RW
#define MMA8452_REG_P_L_THS_REG			0x14 //RW
#define MMA8452_REG_FF_MT_CFG			0x15 //RW
#define MMA8452_REG_FF_MT_SRC			0x16 //RO
#define MMA8452_REG_FF_MT_THS			0x17 //RW
#define MMA8452_REG_FF_MT_COUNT			0x18 //RW
#define MMA8452_REG_TRANSIENT_CFG		0x1D //RW
#define MMA8452_REG_TRANSIENT_SRC		0x1E //RO
#define MMA8452_REG_TRANSIENT_THS		0x1F //RW
#define MMA8452_REG_TRANSIENT_COUNT		0x20 //RW
#define MMA8452_REG_PULSE_CFG			0x21 //RW
#define MMA8452_REG_PULSE_SRC			0x22 //RO
#define MMA8452_REG_PULSE_THSX			0x23 //RW
#define MMA8452_REG_PULSE_THSY			0x24 //RW
#define MMA8452_REG_PULSE_THSZ			0x25 //RW
#define MMA8452_REG_PULSE_TMLT			0x26 //RW
#define MMA8452_REG_PULSE_LTCY			0x27 //RW
#define MMA8452_REG_PULSE_WIND			0x28 //RW
#define MMA8452_REG_ASLP_COUNT			0x29 //RW
#define MMA8452_REG_CTRL_REG1			0x2A //RW
#define MMA8452_REG_CTRL_REG2			0x2B //RW
#define MMA8452_REG_CTRL_REG3			0x2C //RW
#define MMA8452_REG_CTRL_REG4			0x2D //RW
#define MMA8452_REG_CTRL_REG5			0x2E //RW
#define MMA8452_REG_OFF_X				0x2F //RW
#define MMA8452_REG_OFF_Y				0x30 //RW
#define MMA8452_REG_OFF_Z				0x31 //RW

#define GSENSOR_IOCTL_MAGIC				'a'

/* IOCTLs for MMA8452 library */
#define GSENSOR_IOCTL_INIT                  _IO(GSENSOR_IOCTL_MAGIC, 0x01)
#define GSENSOR_IOCTL_RESET      	        _IO(GSENSOR_IOCTL_MAGIC, 0x04)
#define GSENSOR_IOCTL_CLOSE		        _IO(GSENSOR_IOCTL_MAGIC, 0x02)
#define GSENSOR_IOCTL_START		        _IO(GSENSOR_IOCTL_MAGIC, 0x03)
#define GSENSOR_IOCTL_GETDATA               _IOR(GSENSOR_IOCTL_MAGIC, 0x08, char[RBUFF_SIZE+1])

/* IOCTLs for APPs */
#define GSENSOR_IOCTL_APP_SET_RATE		_IOW(GSENSOR_IOCTL_MAGIC, 0x10, short)


/* IOCTLs for MMA8452 library */
#define MMA_IOCTL_INIT                  _IO(GSENSOR_IOCTL_MAGIC, 0x01)
#define MMA_IOCTL_RESET      	        _IO(GSENSOR_IOCTL_MAGIC, 0x04)
#define MMA_IOCTL_CLOSE		        _IO(GSENSOR_IOCTL_MAGIC, 0x02)
#define MMA_IOCTL_START		        _IO(GSENSOR_IOCTL_MAGIC, 0x03)
#define MMA_IOCTL_GETDATA               _IOR(GSENSOR_IOCTL_MAGIC, 0x08, char[RBUFF_SIZE+1])

/* IOCTLs for APPs */
#define MMA_IOCTL_APP_SET_RATE		_IOW(GSENSOR_IOCTL_MAGIC, 0x10, char)

/*rate*/
#define MMA8452_RATE_800          0
#define MMA8452_RATE_400          1
#define MMA8452_RATE_200          2
#define MMA8452_RATE_100          3
#define MMA8452_RATE_50        	  4
#define MMA8452_RATE_12P5         5
#define MMA8452_RATE_6P25         6
#define MMA8452_RATE_1P56         7
#define MMA8452_RATE_SHIFT		  3


#define MMA8452_ASLP_RATE_50          0
#define MMA8452_ASLP_RATE_12P5        1
#define MMA8452_ASLP_RATE_6P25        2
#define MMA8452_ASLP_RATE_1P56        3
#define MMA8452_ASLP_RATE_SHIFT		  6

#define ACTIVE_MASK				1
#define FREAD_MASK				2




/*status*/
#define MMA8452_OPEN           1
#define MMA8452_CLOSE          0

//#define MMA8452_IIC_ADDR 	    0x98  
#define MMA8452_REG_LEN         11
#define MMA8452_GRAVITY_STEP    156 //2g full scale range
#define MMA8452_PRECISION       8 //8bit data
#define MMA8452_BOUNDARY        (0x1 << (MMA8452_PRECISION - 1))
#define MMA8452_TOTAL_TIME      10


/*
struct mma8452_platform_data {
	int reset;
	int clk_on;
	int intr;
};

*/

struct sensor_axis {
	int x;
	int y;
	int z;
};


#define  GSENSOR_DEV_PATH    "/dev/mma8452_daemon"


#endif