Linux-2.6.33.2/drivers/char/specialix_io8.h
/*
* linux/drivers/char/specialix_io8.h --
* Specialix IO8+ multiport serial driver.
*
* Copyright (C) 1997 Roger Wolff (R.E.Wolff@BitWizard.nl)
* Copyright (C) 1994-1996 Dmitry Gorodchanin (pgmdsg@ibi.com)
*
*
* Specialix pays for the development and support of this driver.
* Please DO contact io8-linux@specialix.co.uk if you require
* support.
*
* This driver was developped in the BitWizard linux device
* driver service. If you require a linux device driver for your
* product, please contact devices@BitWizard.nl for a quote.
*
* This code is firmly based on the riscom/8 serial driver,
* written by Dmitry Gorodchanin. The specialix IO8+ card
* programming information was obtained from the CL-CD1865 Data
* Book, and Specialix document number 6200059: IO8+ Hardware
* Functional Specification.
*
* 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_SPECIALIX_H
#define __LINUX_SPECIALIX_H
#include <linux/serial.h>
#ifdef __KERNEL__
/* You can have max 4 ISA cards in one PC, and I recommend not much
more than a few PCI versions of the card. */
#define SX_NBOARD 8
/* NOTE: Specialix decoder recognizes 4 addresses, but only two are used.... */
#define SX_IO_SPACE 4
/* The PCI version decodes 8 addresses, but still only 2 are used. */
#define SX_PCI_IO_SPACE 8
/* eight ports per board. */
#define SX_NPORT 8
#define SX_BOARD(line) ((line) / SX_NPORT)
#define SX_PORT(line) ((line) & (SX_NPORT - 1))
#define SX_DATA_REG 0 /* Base+0 : Data register */
#define SX_ADDR_REG 1 /* base+1 : Address register. */
#define MHz *1000000 /* I'm ashamed of myself. */
/* On-board oscillator frequency */
#define SX_OSCFREQ (25 MHz/2)
/* There is a 25MHz crystal on the board, but the chip is in /2 mode */
/* Ticks per sec. Used for setting receiver timeout and break length */
#define SPECIALIX_TPS 4000
/* Yeah, after heavy testing I decided it must be 6.
* Sure, You can change it if needed.
*/
#define SPECIALIX_RXFIFO 6 /* Max. receiver FIFO size (1-8) */
#define SPECIALIX_MAGIC 0x0907
#define SX_CCR_TIMEOUT 10000 /* CCR timeout. You may need to wait upto
10 milliseconds before the internal
processor is available again after
you give it a command */
#define SX_IOBASE1 0x100
#define SX_IOBASE2 0x180
#define SX_IOBASE3 0x250
#define SX_IOBASE4 0x260
struct specialix_board {
unsigned long flags;
unsigned short base;
unsigned char irq;
//signed char count;
int count;
unsigned char DTR;
int reg;
spinlock_t lock;
};
#define SX_BOARD_PRESENT 0x00000001
#define SX_BOARD_ACTIVE 0x00000002
#define SX_BOARD_IS_PCI 0x00000004
struct specialix_port {
int magic;
struct tty_port port;
int baud_base;
int flags;
int timeout;
unsigned char * xmit_buf;
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];
spinlock_t lock;
};
#endif /* __KERNEL__ */
#endif /* __LINUX_SPECIALIX_H */