92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/*
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* linux/drivers/char/riscom8.h -- RISCom/8 multiport serial driver.
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*
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* Copyright (C) 1994-1996 Dmitry Gorodchanin (pgmdsg@ibi.com)
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*
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* This code is loosely based on the Linux serial driver, written by
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* Linus Torvalds, Theodore T'so and others. The RISCom/8 card
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* programming info was obtained from various drivers for other OSes
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* (FreeBSD, ISC, etc), but no source code from those drivers were
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* directly included in this driver.
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __LINUX_RISCOM8_H
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#define __LINUX_RISCOM8_H
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#include <linux/serial.h>
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#ifdef __KERNEL__
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#define RC_NBOARD 4
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/* NOTE: RISCom decoder recognizes 16 addresses... */
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#define RC_NPORT 8
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#define RC_BOARD(line) (((line) >> 3) & 0x07)
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#define RC_PORT(line) ((line) & (RC_NPORT - 1))
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/* Ticks per sec. Used for setting receiver timeout and break length */
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#define RISCOM_TPS 4000
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/* Yeah, after heavy testing I decided it must be 6.
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* Sure, You can change it if needed.
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*/
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#define RISCOM_RXFIFO 6 /* Max. receiver FIFO size (1-8) */
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#define RISCOM8_MAGIC 0x0907
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#define RC_IOBASE1 0x220
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#define RC_IOBASE2 0x240
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#define RC_IOBASE3 0x250
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#define RC_IOBASE4 0x260
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struct riscom_board {
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unsigned long flags;
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unsigned short base;
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unsigned char irq;
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signed char count;
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unsigned char DTR;
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};
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#define RC_BOARD_PRESENT 0x00000001
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#define RC_BOARD_ACTIVE 0x00000002
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struct riscom_port {
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int magic;
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struct tty_port port;
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int baud_base;
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int timeout;
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int custom_divisor;
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int xmit_head;
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int xmit_tail;
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int xmit_cnt;
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short wakeup_chars;
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short break_length;
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unsigned char mark_mask;
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unsigned char IER;
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unsigned char MSVR;
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unsigned char COR2;
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#ifdef RC_REPORT_OVERRUN
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unsigned long overrun;
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#endif
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#ifdef RC_REPORT_FIFO
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unsigned long hits[10];
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#endif
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};
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#endif /* __KERNEL__ */
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#endif /* __LINUX_RISCOM8_H */
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