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/*

 *      linux/drivers/char/riscom8.h  -- RISCom/8 multiport serial driver.

 *

 *      Copyright (C) 1994-1996  Dmitry Gorodchanin (pgmdsg@ibi.com)

 *

 *      This code is loosely based on the Linux serial driver, written by

 *      Linus Torvalds, Theodore T'so and others. The RISCom/8 card

 *      programming info was obtained from various drivers for other OSes

 *      (FreeBSD, ISC, etc), but no source code from those drivers were

 *      directly included in this driver.

 *

 *

 *      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 __LINUX_RISCOM8_H

#define __LINUX_RISCOM8_H

#include <linux/serial.h>

#ifdef __KERNEL__

#define RC_NBOARD               4

/* NOTE: RISCom decoder recognizes 16 addresses... */

#define RC_NPORT                8  

#define RC_BOARD(line)          (((line) >> 3) & 0x07)

#define RC_PORT(line)           ((line) & (RC_NPORT - 1))

/* Ticks per sec. Used for setting receiver timeout and break length */

#define RISCOM_TPS              4000

/* Yeah, after heavy testing I decided it must be 6.

 * Sure, You can change it if needed.

 */

#define RISCOM_RXFIFO           6       /* Max. receiver FIFO size (1-8) */

#define RISCOM8_MAGIC           0x0907

#define RC_IOBASE1      0x220

#define RC_IOBASE2      0x240

#define RC_IOBASE3      0x250

#define RC_IOBASE4      0x260

struct riscom_board {

        unsigned long   flags;

        unsigned short  base;

        unsigned char   irq;

        signed   char   count;

        unsigned char   DTR;

};

#define RC_BOARD_PRESENT        0x00000001

#define RC_BOARD_ACTIVE         0x00000002

struct riscom_port {

        int                     magic;

        int                     baud_base;

        int                     flags;

        struct tty_struct       * tty;

        int                     count;

        int                     blocked_open;

        int                     event;

        int                     timeout;

        int                     close_delay;

        long                    session;

        long                    pgrp;

        unsigned char           * xmit_buf;

        int                     custom_divisor;

        int                     xmit_head;

        int                     xmit_tail;

        int                     xmit_cnt;

        struct termios          normal_termios;

        struct termios          callout_termios;

        struct wait_queue       *open_wait;

        struct wait_queue       *close_wait;

        struct tq_struct        tqueue;

        struct tq_struct        tqueue_hangup;

        short                   wakeup_chars;

        short                   break_length;

        unsigned short          closing_wait;

        unsigned char           mark_mask;

        unsigned char           IER;

        unsigned char           MSVR;

        unsigned char           COR2;

#ifdef RC_REPORT_OVERRUN

        unsigned long           overrun;

#endif  

#ifdef RC_REPORT_FIFO

        unsigned long           hits[10];

#endif

};

#endif /* __KERNEL__ */

#endif /* __LINUX_RISCOM8_H */