riscom8.h
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上传日期:2013-04-10
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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;
- long event; /* long req'd for set_bit --RR */
- 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;
- wait_queue_head_t open_wait;
- wait_queue_head_t 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 */