/* $Id: iseg.h,v 1.4 2003/09/28 09:05:15 jmuelmen Exp $ */

#ifndef _iseg__inc_
#define _iseg__inc_

/* initialize the ISEG */
char   iseg_init ();

/* set the voltage of an ISEG channel */
double iseg_set_v (int chan, double v);  /* in V */
/* get the nominal voltage of a channel */
double iseg_get_v (int chan); 
/* get actual voltage and current */
double  iseg_get_v_meas (int); 	
double  iseg_get_i_meas (int); 	/* in mA */

/* turn a channel on or off */
void    iseg_turn_on  (int);
void    iseg_turn_off (int);

/* set current trip --- use iseg_turn_on to turn a tripped channel back on */
double iseg_set_i_trip (int, double); /* in mA */
double iseg_get_i_trip (int); /* in mA */

/* get channel status */
unsigned int iseg_get_chan_stat (int);

/* status bits */
#define ISEG_SW_TRIP 		1	/* software current trip */
#define ISEG_SENSE_ERROR 	2	/* sense line error */
#define ISEG_V_UNSTABLE 	4	/* output voltage unstable */
#define ISEG_CHAN_DONT_WORK	128	/* "channel don't work" :-) */
#define ISEG_INPUT_ERROR	512	/* v_set / ramp input out of range */
#define ISEG_CHAN_ON		1024	/* channel is on */
#define ISEG_V_RAMPING		2048	/* voltage is ramping */
#define ISEG_EMERGENCY_CUTOFF	4096	/* emergency cut-off has occurred */
#define ISEG_KILL_ENABLE	8192	/* kill-enabled */
#define ISEG_HW_TRIP		16384	/* hardware current trip */
#define ISEG_V_LIMIT		32768	/* voltage limit exceeded */

/* ramp speed */
double 	iseg_set_ramp (double); /* in V/s */
double 	iseg_get_ramp ();

/* reset the current trip flags --- return value & 2^n indicates channel n had
 * tripped before the reset */
unsigned int iseg_reset ();

#endif