/*	**************************************************************  */
/*
 *	BTCOIL.H
 *
 *	Zachary Wolf
 *	2/3/00
 */ 

#ifndef __BTCOIL_HEADER
#define __BTCOIL_HEADER

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

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

/*	ENUM DEFINITIONS */
enum btcoil_device_type_enum {BTCOIL_SR850, BTCOIL_NONE};

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

/*	STRUCTURE DEFINITIONS */
struct btcoil_param_struct
{
	int board_addr;						/* GPIB board addr */
	int sr850_addr;						/* SR850 GPIB address */
	enum btcoil_device_type_enum device_type;	/* Type of lock-in being used */
	double coil_constant;				/* Coil constant (T/V_0p) at the rotation frequency */
};

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

/*	PUBLIC FUNCTION DECLARATIONS  */
void btcoil_init(char log_file_in[], struct btcoil_param_struct btcoil_param);
void btcoil_get_Bt(double* Bt, double* th);
void btcoil_get_v_coil(double* freq, double* v_amp, double* v_ph);
void btcoil_calc_Bt(double freq, double v_amp, double v_ph, double* Bt, double* th);
void btcoil_get_v_coil_raw(double* freq, double* v_amp, double* v_ph);
void btcoil_exit(void);

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

/*	CONSTANTS  */
#define BTCOIL_MAX_CMD 80

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

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

#endif