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root/include/linux/istallion.h

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

/*
 *      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                     close_delay;
        int                     closing_wait;
        int                     openwaitcnt;
        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

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