/*
 * Copyright 2003 Digi International (www.digi.com)
 *	Scott H Kilau <Scott_Kilau at digi dot com>
 *
 * 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, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE.  See the GNU General Public License for more details.
 */

#ifndef __DIGI_H
#define __DIGI_H

#ifndef TIOCM_LE
#define		TIOCM_LE	0x01		/* line enable		*/
#define		TIOCM_DTR	0x02		/* data terminal ready	*/
#define		TIOCM_RTS	0x04		/* request to send	*/
#define		TIOCM_ST	0x08		/* secondary transmit	*/
#define		TIOCM_SR	0x10		/* secondary receive	*/
#define		TIOCM_CTS	0x20		/* clear to send	*/
#define		TIOCM_CAR	0x40		/* carrier detect	*/
#define		TIOCM_RNG	0x80		/* ring	indicator	*/
#define		TIOCM_DSR	0x100		/* data set ready	*/
#define		TIOCM_RI	TIOCM_RNG	/* ring (alternate)	*/
#define		TIOCM_CD	TIOCM_CAR	/* carrier detect (alt)	*/
#endif

#if !defined(TIOCMSET)
#define	TIOCMSET	(('d'<<8) | 252)	/* set modem ctrl state	*/
#define	TIOCMGET	(('d'<<8) | 253)	/* set modem ctrl state	*/
#endif

#if !defined(TIOCMBIC)
#define	TIOCMBIC	(('d'<<8) | 254)	/* set modem ctrl state */
#define	TIOCMBIS	(('d'<<8) | 255)	/* set modem ctrl state */
#endif

#define DIGI_GETA	(('e'<<8) | 94)		/* Read params		*/
#define DIGI_SETA	(('e'<<8) | 95)		/* Set params		*/
#define DIGI_SETAW	(('e'<<8) | 96)		/* Drain & set params	*/
#define DIGI_SETAF	(('e'<<8) | 97)		/* Drain, flush & set params */
#define DIGI_GET_NI_INFO (('d'<<8) | 250) /* Non-intelligent state info */
#define DIGI_LOOPBACK (('d'<<8) | 252) /*
					* Enable/disable UART
					* internal loopback
					*/
#define DIGI_FAST	0x0002		/* Fast baud rates		*/
#define RTSPACE		0x0004		/* RTS input flow control	*/
#define CTSPACE		0x0008		/* CTS output flow control	*/
#define DIGI_COOK	0x0080		/* Cooked processing done in FEP */
#define DIGI_FORCEDCD	0x0100		/* Force carrier		*/
#define	DIGI_ALTPIN	0x0200		/* Alternate RJ-45 pin config	*/
#define	DIGI_PRINTER	0x0800		/* Hold port open for flow cntrl*/
#define DIGI_DTR_TOGGLE	0x2000		/* Support DTR Toggle           */
#define DIGI_RTS_TOGGLE	0x8000		/* Support RTS Toggle		*/
#define DIGI_PLEN	28		/* String length		*/
#define	DIGI_TSIZ	10		/* Terminal string len		*/

/************************************************************************
 * Structure used with ioctl commands for DIGI parameters.
 ************************************************************************/
struct digi_t {
	unsigned short	digi_flags;		/* Flags (see above)	*/
	unsigned short	digi_maxcps;		/* Max printer CPS	*/
	unsigned short	digi_maxchar;		/* Max chars in print queue */
	unsigned short	digi_bufsize;		/* Buffer size		*/
	unsigned char	digi_onlen;		/* Length of ON string	*/
	unsigned char	digi_offlen;		/* Length of OFF string	*/
	char		digi_onstr[DIGI_PLEN];	/* Printer on string	*/
	char		digi_offstr[DIGI_PLEN];	/* Printer off string	*/
	char		digi_term[DIGI_TSIZ];	/* terminal string	*/
};

/************************************************************************
 * Structure to get driver status information
 ************************************************************************/
struct digi_dinfo {
	unsigned int	dinfo_nboards;		/* # boards configured	*/
	char		dinfo_reserved[12];	/* for future expansion */
	char		dinfo_version[16];	/* driver version       */
};

#define	DIGI_GETDD	(('d'<<8) | 248)	/* get driver info      */

/************************************************************************
 * Structure used with ioctl commands for per-board information
 *
 * physsize and memsize differ when board has "windowed" memory
 ************************************************************************/
struct digi_info {
	unsigned int	info_bdnum;		/* Board number (0 based)  */
	unsigned int	info_ioport;		/* io port address         */
	unsigned int	info_physaddr;		/* memory address          */
	unsigned int	info_physsize;		/* Size of host mem window */
	unsigned int	info_memsize;		/* Amount of dual-port mem */
						/* on board                */
	unsigned short	info_bdtype;		/* Board type              */
	unsigned short	info_nports;		/* number of ports         */
	char		info_bdstate;		/* board state             */
	char		info_reserved[7];	/* for future expansion    */
};

#define	DIGI_GETBD	(('d'<<8) | 249)	/* get board info          */

struct digi_getbuffer /* Struct for holding buffer use counts */
{
	unsigned long tIn;
	unsigned long tOut;
	unsigned long rxbuf;
	unsigned long txbuf;
	unsigned long txdone;
};

struct digi_getcounter {
	unsigned long norun;		/* number of UART overrun errors */
	unsigned long noflow;		/* number of buffer overflow errors */
	unsigned long nframe;		/* number of framing errors */
	unsigned long nparity;		/* number of parity errors */
	unsigned long nbreak;		/* number of breaks received */
	unsigned long rbytes;		/* number of received bytes */
	unsigned long tbytes;		/* number of bytes transmitted fully */
};

/* Board State Definitions */
#define	BD_RUNNING	0x0
#define	BD_NOFEP	0x5

#define DIGI_SETCUSTOMBAUD	_IOW('e', 106, int)	/* Set integer baud rate */
#define DIGI_GETCUSTOMBAUD	_IOR('e', 107, int)	/* Get integer baud rate */

#define DIGI_REALPORT_GETBUFFERS (('e'<<8) | 108)
#define DIGI_REALPORT_SENDIMMEDIATE (('e'<<8) | 109)
#define DIGI_REALPORT_GETCOUNTERS (('e'<<8) | 110)
#define DIGI_REALPORT_GETEVENTS (('e'<<8) | 111)

#define EV_OPU		0x0001		/* !<Output paused by client */
#define EV_OPS		0x0002		/* !<Output paused by reqular sw flowctrl */
#define EV_IPU		0x0010		/* !<Input paused unconditionally by user */
#define EV_IPS		0x0020		/* !<Input paused by high/low water marks */
#define EV_TXB		0x0040		/* !<Transmit break pending */

/*
 * This structure holds data needed for the intelligent <--> nonintelligent
 * DPA translation
 */
struct ni_info {
	int board;
	int channel;
	int dtr;
	int rts;
	int cts;
	int dsr;
	int ri;
	int dcd;
	int curtx;
	int currx;
	unsigned short iflag;
	unsigned short oflag;
	unsigned short cflag;
	unsigned short lflag;
	unsigned int mstat;
	unsigned char hflow;
	unsigned char xmit_stopped;
	unsigned char recv_stopped;
	unsigned int baud;
};

#define T_CLASSIC 0002
#define T_PCIBUS 0400
#define T_NEO_EXPRESS 0001
#define T_NEO 0000

#define TTY_FLIPBUF_SIZE 512
#endif /* DIGI_H */