diff options
Diffstat (limited to 'drivers/char/riscom8.h')
| -rw-r--r-- | drivers/char/riscom8.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/drivers/char/riscom8.h b/drivers/char/riscom8.h new file mode 100644 index 00000000000..6317aade201 --- /dev/null +++ b/drivers/char/riscom8.h @@ -0,0 +1,102 @@ +/* + * 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; + unsigned char * xmit_buf; + int custom_divisor; + int xmit_head; + int xmit_tail; + int xmit_cnt; + wait_queue_head_t open_wait; + wait_queue_head_t close_wait; + struct work_struct tqueue; + struct work_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 */ |