150 строки
4.2 KiB
C
150 строки
4.2 KiB
C
|
/*
|
||
|
|
* 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;
|
||
|
|
int baud_base;
|
||
|
|
int flags;
|
||
|
|
struct tty_struct * tty;
|
||
|
|
int count;
|
||
|
|
int blocked_open;
|
||
|
|
ulong event;
|
||
|
|
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;
|
||
|
|
unsigned long overrun;
|
||
|
|
unsigned long hits[10];
|
||
|
|
spinlock_t lock;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* __KERNEL__ */
|
||
|
|
#endif /* __LINUX_SPECIALIX_H */
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|