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Diffstat (limited to 'drivers/char/specialix_io8.h')
| -rw-r--r-- | drivers/char/specialix_io8.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/drivers/char/specialix_io8.h b/drivers/char/specialix_io8.h new file mode 100644 index 00000000000..895bd90de36 --- /dev/null +++ b/drivers/char/specialix_io8.h @@ -0,0 +1,149 @@ +/* + * 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 */ + + + + + + + + + |