/*
 * PPS API header
 *
 * Copyright (C) 2005-2009   Rodolfo Giometti <giometti@linux.it>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */


#ifndef _PPS_H_
#define _PPS_H_

#include <linux/types.h>

#define PPS_VERSION		"5.3.6"
#define PPS_MAX_SOURCES		16		



#define PPS_API_VERS_1		1
#define PPS_API_VERS		PPS_API_VERS_1	
#define PPS_MAX_NAME_LEN	32

struct pps_ktime {
	__s64 sec;
	__s32 nsec;
	__u32 flags;
};
#define PPS_TIME_INVALID	(1<<0)	

struct pps_kinfo {
	__u32 assert_sequence;		
	__u32 clear_sequence; 		
	struct pps_ktime assert_tu;	
	struct pps_ktime clear_tu;	
	int current_mode;		
};

struct pps_kparams {
	int api_version;		
	int mode;			
	struct pps_ktime assert_off_tu;	
	struct pps_ktime clear_off_tu;	
};


#define PPS_CAPTUREASSERT	0x01	
#define PPS_CAPTURECLEAR	0x02	
#define PPS_CAPTUREBOTH		0x03	

#define PPS_OFFSETASSERT	0x10	
#define PPS_OFFSETCLEAR		0x20	

#define PPS_CANWAIT		0x100	
#define PPS_CANPOLL		0x200	

#define PPS_ECHOASSERT		0x40	
#define PPS_ECHOCLEAR		0x80	

#define PPS_TSFMT_TSPEC		0x1000	
#define PPS_TSFMT_NTPFP		0x2000	


#define PPS_KC_HARDPPS		0	
#define PPS_KC_HARDPPS_PLL	1	
#define PPS_KC_HARDPPS_FLL	2	

struct pps_fdata {
	struct pps_kinfo info;
	struct pps_ktime timeout;
};

struct pps_bind_args {
	int tsformat;	
	int edge;	
	int consumer;	
};

#include <linux/ioctl.h>

#define PPS_GETPARAMS		_IOR('p', 0xa1, struct pps_kparams *)
#define PPS_SETPARAMS		_IOW('p', 0xa2, struct pps_kparams *)
#define PPS_GETCAP		_IOR('p', 0xa3, int *)
#define PPS_FETCH		_IOWR('p', 0xa4, struct pps_fdata *)
#define PPS_KC_BIND		_IOW('p', 0xa5, struct pps_bind_args *)

#endif