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* linux/drivers/char/riscom8.h -- RISCom/8 multiport serial driver.
* Copyright (C) 1994-1996 Dmitry Gorodchanin (
* 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
* 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;
struct tty_port port;
int baud_base;
int timeout;
int custom_divisor;
int xmit_head;
int xmit_tail;
int xmit_cnt;
short wakeup_chars;
short break_length;
unsigned char mark_mask;
unsigned char IER;
unsigned char MSVR;
unsigned char COR2;
unsigned long overrun;
unsigned long hits[10];
#endif /* __KERNEL__ */
#endif /* __LINUX_RISCOM8_H */