/* * 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 */