patch-1.3.91 linux/include/linux/stallion.h

• Lines: 143
• Date: Wed Apr 17 15:08:58 1996
• Orig file: v1.3.90/linux/include/linux/stallion.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.90/linux/include/linux/stallion.h linux/include/linux/stallion.h
@@ -0,0 +1,142 @@
+/*****************************************************************************/
+
+/*
+ *	stallion.h  -- stallion multiport serial driver.
+ *
+ *	Copyright (C) 1994-1996  Greg Ungerer (gerg@stallion.oz.au).
+ *
+ *	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	_STALLION_H
+#define	_STALLION_H
+/*****************************************************************************/
+
+/*
+ *	Define important driver constants here.
+ */
+#define	STL_MAXBRDS		4
+#define	STL_MAXPANELS		4
+#define	STL_PORTSPERPANEL	16
+#define	STL_MAXPORTS		64
+#define	STL_MAXDEVS		(STL_MAXBRDS * STL_MAXPORTS)
+
+
+/*
+ *	Define a set of structures to hold all the board/panel/port info
+ *	for our ports. These will be dynamically allocated as required.
+ */
+
+/*
+ *	Define a ring queue structure for each port. This will hold the
+ *	TX data waiting to be output. Characters are fed into this buffer
+ *	from the line discipline (or even direct from user space!) and
+ *	then fed into the UARTs during interrupts. Will use a clasic ring
+ *	queue here for this. The good thing about this type of ring queue
+ *	is that the head and tail pointers can be updated without interrupt
+ *	protection - since "write" code only needs to change the head, and
+ *	interrupt code only needs to change the tail.
+ */
+typedef struct {
+	char	*buf;
+	char	*head;
+	char	*tail;
+} stlrq_t;
+
+/*
+ *	Port, panel and board structures to hold status info about each.
+ *	The board structure contains pointers to structures for each panel
+ *	connected to it, and in turn each panel structure contains pointers
+ *	for each port structure for each port on that panel. Note that
+ *	the port structure also contains the board and panel number that it
+ *	is associated with, this makes it (fairly) easy to get back to the
+ *	board/panel info for a port.
+ */
+typedef struct {
+	unsigned long		magic;
+	int			portnr;
+	int			panelnr;
+	int			brdnr;
+	int			ioaddr;
+	int			uartaddr;
+	int			pagenr;
+	int			istate;
+	int			flags;
+	int			baud_base;
+	int			custom_divisor;
+	int			close_delay;
+	int			closing_wait;
+	int			refcount;
+	int			openwaitcnt;
+	int			brklen;
+	long			session;
+	long			pgrp;
+	unsigned int		sigs;
+	unsigned int		rxignoremsk;
+	unsigned int		rxmarkmsk;
+	unsigned long		clk;
+	unsigned long		hwid;
+	struct tty_struct	*tty;
+	struct wait_queue	*open_wait;
+	struct wait_queue	*close_wait;
+	struct termios		normaltermios;
+	struct termios		callouttermios;
+	struct tq_struct	tqueue;
+	comstats_t		stats;
+	stlrq_t			tx;
+} stlport_t;
+
+typedef struct {
+	unsigned long	magic;
+	int		panelnr;
+	int		brdnr;
+	int		pagenr;
+	int		nrports;
+	int		iobase;
+	unsigned int	hwid;
+	unsigned int	ackmask;
+	stlport_t	*ports[STL_PORTSPERPANEL];
+} stlpanel_t;
+
+typedef struct {
+	unsigned long	magic;
+	int		brdnr;
+	int		brdtype;
+	int		state;
+	int		nrpanels;
+	int		nrports;
+	int		irq;
+	int		irqtype;
+	unsigned int	ioaddr1;
+	unsigned int	ioaddr2;
+	unsigned int	iostatus;
+	unsigned int	ioctrl;
+	unsigned int	ioctrlval;
+	unsigned int	hwid;
+	unsigned long	clk;
+	stlpanel_t	*panels[STL_MAXPANELS];
+} stlbrd_t;
+
+
+/*
+ *	Define MAGIC numbers used for above structures.
+ */
+#define	STL_PORTMAGIC	0x5a7182c9
+#define	STL_PANELMAGIC	0x7ef621a1
+#define	STL_BOARDMAGIC	0xa2267f52
+
+/*****************************************************************************/
+#endif