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

/*

 *	istallion.h  -- stallion intelligent multiport serial driver.

 *

 *	Copyright (C) 1996-1998  Stallion Technologies

 *	Copyright (C) 1994-1996  Greg Ungerer.

 *

 *	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	_ISTALLION_H

#define	_ISTALLION_H

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

/*

 *	Define important driver constants here.

 */

#define	STL_MAXBRDS		4

#define	STL_MAXPANELS		4

#define	STL_MAXPORTS		64

#define	STL_MAXCHANS		(STL_MAXPORTS + 1)

#define	STL_MAXDEVS		(STL_MAXBRDS * STL_MAXPORTS)

/*

 *	Define a set of structures to hold all the board/panel/port info

 *	for our ports. These will be dynamically allocated as required at

 *	driver initialization time.

 */

/*

 *	Port and board structures to hold status info about each object.

 *	The board structure contains pointers to structures for each port

 *	connected to it. Panels are not distinguished here, since

 *	communication with the slave board will always be on a per port

 *	basis.

 */

struct stliport {

	unsigned long		magic;

	struct tty_port		port;

	unsigned int		portnr;

	unsigned int		panelnr;

	unsigned int		brdnr;

	unsigned long		state;

	unsigned int		devnr;

	int			baud_base;

	int			custom_divisor;

	int			closing_wait;

	int			rc;

	int			argsize;

	void			*argp;

	unsigned int		rxmarkmsk;

	wait_queue_head_t	raw_wait;

	struct asysigs		asig;

	unsigned long		addr;

	unsigned long		rxoffset;

	unsigned long		txoffset;

	unsigned long		sigs;

	unsigned long		pflag;

	unsigned int		rxsize;

	unsigned int		txsize;

	unsigned char		reqbit;

	unsigned char		portidx;

	unsigned char		portbit;

};

/*

 *	Use a structure of function pointers to do board level operations.

 *	These include, enable/disable, paging shared memory, interrupting, etc.

 */

struct stlibrd {

	unsigned long	magic;

	unsigned int	brdnr;

	unsigned int	brdtype;

	unsigned int	state;

	unsigned int	nrpanels;

	unsigned int	nrports;

	unsigned int	nrdevs;

	unsigned int	iobase;

	int		iosize;

	unsigned long	memaddr;

	void		__iomem *membase;

	unsigned long	memsize;

	int		pagesize;

	int		hostoffset;

	int		slaveoffset;

	int		bitsize;

	int		enabval;

	unsigned int	panels[STL_MAXPANELS];

	int		panelids[STL_MAXPANELS];

	void		(*init)(struct stlibrd *brdp);

	void		(*enable)(struct stlibrd *brdp);

	void		(*reenable)(struct stlibrd *brdp);

	void		(*disable)(struct stlibrd *brdp);

	void		__iomem *(*getmemptr)(struct stlibrd *brdp, unsigned long offset, int line);

	void		(*intr)(struct stlibrd *brdp);

	void		(*reset)(struct stlibrd *brdp);

	struct stliport	*ports[STL_MAXPORTS];

};

/*

 *	Define MAGIC numbers used for above structures.

 */

#define	STLI_PORTMAGIC	0xe671c7a1

#define	STLI_BOARDMAGIC	0x4bc6c825

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

#endif