#ifndef _PTY_H
#define _PTY_H

#define	PF_RCOLL	0x01
#define	PF_WCOLL	0x02
#define	PF_PKT		0x08		/* packet mode */
#define	PF_STOPPED	0x10		/* user told stopped */
#define	PF_REMOTE	0x20		/* remote and flow controlled input */
#define	PF_NOSTOP	0x40
#define PF_UCNTL	0x80		/* user control mode */

#ifdef KERNEL

#include "uio.h"
#include "tty.h"
#include "conf.h"

extern const struct devspec ptsdevs[];
extern const struct devspec ptcdevs[];


#ifndef NPTY
#define NPTY 4
#endif

#if NPTY == 1
#undef NPTY
#define NPTY    16      /* crude XXX */
#endif

extern struct  tty pt_tty[NPTY];

extern int ptsopen(dev_t dev, int flag, int mode);
extern int ptsclose(dev_t dev, int flag, int mode);
extern int ptsread(dev_t dev, register struct uio *uio, int flag);
extern int ptswrite(dev_t dev, register struct uio *uio, int flag);
extern void ptsstart(struct tty *tp);
extern void ptcwakeup(struct tty *tp, int flag);
extern int ptcopen(dev_t dev, int flag, int mode);
extern int ptcclose(dev_t dev, int flag, int mode);
extern int ptcread(dev_t dev, register struct uio *uio, int flag);
extern void ptsstop(register struct tty *tp, int flush);
extern int ptcselect(dev_t dev, int rw);
extern int ptcwrite(dev_t dev, register struct uio *uio, int flag);
extern int ptyioctl(dev_t dev, u_int cmd, caddr_t data, int flag);

#endif

#endif