150 lines
4.2 KiB
C
150 lines
4.2 KiB
C
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/*
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* linux/drivers/char/specialix_io8.h --
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* Specialix IO8+ multiport serial driver.
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*
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* Copyright (C) 1997 Roger Wolff (R.E.Wolff@BitWizard.nl)
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* Copyright (C) 1994-1996 Dmitry Gorodchanin (pgmdsg@ibi.com)
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*
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*
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* Specialix pays for the development and support of this driver.
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* Please DO contact io8-linux@specialix.co.uk if you require
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* support.
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*
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* This driver was developped in the BitWizard linux device
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* driver service. If you require a linux device driver for your
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* product, please contact devices@BitWizard.nl for a quote.
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*
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* This code is firmly based on the riscom/8 serial driver,
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* written by Dmitry Gorodchanin. The specialix IO8+ card
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* programming information was obtained from the CL-CD1865 Data
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* Book, and Specialix document number 6200059: IO8+ Hardware
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* Functional Specification.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (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
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* useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the 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
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* License along with this program; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
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* USA.
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* */
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#ifndef __LINUX_SPECIALIX_H
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#define __LINUX_SPECIALIX_H
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#include <linux/serial.h>
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#ifdef __KERNEL__
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/* You can have max 4 ISA cards in one PC, and I recommend not much
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more than a few PCI versions of the card. */
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#define SX_NBOARD 8
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/* NOTE: Specialix decoder recognizes 4 addresses, but only two are used.... */
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#define SX_IO_SPACE 4
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/* The PCI version decodes 8 addresses, but still only 2 are used. */
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#define SX_PCI_IO_SPACE 8
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/* eight ports per board. */
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#define SX_NPORT 8
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#define SX_BOARD(line) ((line) / SX_NPORT)
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#define SX_PORT(line) ((line) & (SX_NPORT - 1))
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#define SX_DATA_REG 0 /* Base+0 : Data register */
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#define SX_ADDR_REG 1 /* base+1 : Address register. */
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#define MHz *1000000 /* I'm ashamed of myself. */
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/* On-board oscillator frequency */
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#define SX_OSCFREQ (25 MHz/2)
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/* There is a 25MHz crystal on the board, but the chip is in /2 mode */
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/* Ticks per sec. Used for setting receiver timeout and break length */
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#define SPECIALIX_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 SPECIALIX_RXFIFO 6 /* Max. receiver FIFO size (1-8) */
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#define SPECIALIX_MAGIC 0x0907
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#define SX_CCR_TIMEOUT 10000 /* CCR timeout. You may need to wait upto
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10 milliseconds before the internal
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processor is available again after
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you give it a command */
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#define SX_IOBASE1 0x100
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#define SX_IOBASE2 0x180
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#define SX_IOBASE3 0x250
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#define SX_IOBASE4 0x260
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struct specialix_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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int count;
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unsigned char DTR;
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int reg;
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spinlock_t lock;
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};
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#define SX_BOARD_PRESENT 0x00000001
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#define SX_BOARD_ACTIVE 0x00000002
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#define SX_BOARD_IS_PCI 0x00000004
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struct specialix_port {
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int magic;
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int baud_base;
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int flags;
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struct tty_struct * tty;
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int count;
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int blocked_open;
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ulong event;
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int timeout;
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int close_delay;
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unsigned char * xmit_buf;
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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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wait_queue_head_t open_wait;
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wait_queue_head_t close_wait;
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struct work_struct tqueue;
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struct work_struct tqueue_hangup;
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short wakeup_chars;
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short break_length;
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unsigned short closing_wait;
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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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unsigned long overrun;
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unsigned long hits[10];
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spinlock_t lock;
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};
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#endif /* __KERNEL__ */
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#endif /* __LINUX_SPECIALIX_H */
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