/*	**************************************************************  */
/*
 *	WIRPOS.H
 *
 *	Zachary Wolf
 *	6/3/05
 */ 

#ifndef __WIRPOS_HEADER
#define __WIRPOS_HEADER

#if defined(__cplusplus) || defined(__cplusplus__)
extern "C" {
#endif

/*	**************************************************************  */

/*	CONSTANTS  */
#define WIRPOS_MAX_NUM_CHAR 80
#define WIRPOS_MAX_NUM_WIR_DET 4
#define WIRPOS_COARSE_STEP_SIZE 0.0001	/* (m) */
#define WIRPOS_COARSE_NUM_POS 20		/* Locate wire within 2 mm of home position */ //mmm why would it be within 2 mm?
#define WIRPOS_FINE_STEP_SIZE 0.00001	/* (m) */
#define WIRPOS_FINE_NUM_POS 40
#define WIRPOS_FIT_STEP_SIZE 0.000002	/* (m) */
#define WIRPOS_FIT_NUM_POS 5
#define WIRPOS_SENS		0.1
#define WIRPOS_COARSE_TRIES	2
#define WIRPOS_FINE_TRIES	4
	
/*	*************************************************************  */

/*	ENUM DEFINITIONS */
enum wirpos_device_type_enum {WIRPOS_ESP7000_HP34970, WIRPOS_MANUAL_HP34970, WIRPOS_NONE_NONE};
enum wirpos_binary_enum {WIRPOS_TRUE, WIRPOS_FALSE};

/*	*************************************************************  */

/*	STRUCTURE DEFINITIONS */
struct wirpos_det_info_struct
{
	char name[WIRPOS_MAX_NUM_CHAR];		/* Name of the detector */
	int move_axis;						/* Axis number of the motion controller to move the detector */
	int meas_channel;					/* Channel number in the measurement device */
	double zero_shift;                  /* Amount by which the motor shifts before starting the scan (in m).  Needed when the wire is far from zero. */
};

struct wirpos_param_struct
{
	int board_addr;						/* GPIB board addr */
	int esp7000_addr;					/* ESP7000 GPIB address */
	int hp34970_addr;					/* HP34970 GPIB address */
	enum wirpos_device_type_enum device_type;	/* Type of device being used */
	double acc;							/* Detector acceleration */
	double vel;							/* Detector velocity */
	int num_wire_det;					/* Number of wire position detectors */
	enum wirpos_binary_enum show_ui;	/* Show graph, choices in enum */
	struct wirpos_det_info_struct det_info[WIRPOS_MAX_NUM_WIR_DET]; /* Wire detector information */
};

/*	**************************************************************  */

/*	PUBLIC FUNCTION DECLARATIONS  */
void wirpos_init(char log_file_in[], struct wirpos_param_struct wirpos_param_in);
void wirpos_manual_move_to_wire(int det_num);
void wirpos_move_home(int det_num);
void wirpos_rel_move(int det_num, double dis);
void wirpos_abs_move(int det_num, double pos);
void wirpos_set_zero_pos(int det_num);
void wirpos_get_pos(int det_num, double* pos);
void wirpos_get_volt(int det_num, double* v);
void wirpos_find_wire_coarse(int det_num, double* coarse_wire_pos);
void wirpos_find_wire_fine(int det_num, double coarse_wire_pos, double* fine_wire_pos);
void wirpos_find_wire(int det_num, double* wire_pos);
void wirpos_exit(void);

/*	**************************************************************  */

/*	DONE  */
#if defined(__cplusplus) || defined(__cplusplus__)
}
#endif

#endif