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* istallion.h -- stallion intelligent multiport serial driver.
* Copyright (C) 1996-1998 Stallion Technologies
* Copyright (C) 1994-1996 Greg Ungerer.
* 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
* 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 _ISTALLION_H
#define _ISTALLION_H
* Define important driver constants here.
#define STL_MAXBRDS 4
#define STL_MAXPORTS 64
* Define a set of structures to hold all the board/panel/port info
* for our ports. These will be dynamically allocated as required at
* driver initialization time.
* Port and board structures to hold status info about each object.
* The board structure contains pointers to structures for each port
* connected to it. Panels are not distinguished here, since
* communication with the slave board will always be on a per port
* basis.
struct stliport {
unsigned long magic;
struct tty_port port;
unsigned int portnr;
unsigned int panelnr;
unsigned int brdnr;
unsigned long state;
unsigned int devnr;
int baud_base;
int custom_divisor;
int closing_wait;
int rc;
int argsize;
void *argp;
unsigned int rxmarkmsk;
wait_queue_head_t raw_wait;
struct asysigs asig;
unsigned long addr;
unsigned long rxoffset;
unsigned long txoffset;
unsigned long sigs;
unsigned long pflag;
unsigned int rxsize;
unsigned int txsize;
unsigned char reqbit;
unsigned char portidx;
unsigned char portbit;
* Use a structure of function pointers to do board level operations.
* These include, enable/disable, paging shared memory, interrupting, etc.
struct stlibrd {
unsigned long magic;
unsigned int brdnr;
unsigned int brdtype;
unsigned int state;
unsigned int nrpanels;
unsigned int nrports;
unsigned int nrdevs;
unsigned int iobase;
int iosize;
unsigned long memaddr;
void __iomem *membase;
unsigned long memsize;
int pagesize;
int hostoffset;
int slaveoffset;
int bitsize;
int enabval;
unsigned int panels[STL_MAXPANELS];
int panelids[STL_MAXPANELS];
void (*init)(struct stlibrd *brdp);
void (*enable)(struct stlibrd *brdp);
void (*reenable)(struct stlibrd *brdp);
void (*disable)(struct stlibrd *brdp);
void __iomem *(*getmemptr)(struct stlibrd *brdp, unsigned long offset, int line);
void (*intr)(struct stlibrd *brdp);
void (*reset)(struct stlibrd *brdp);
struct stliport *ports[STL_MAXPORTS];
* Define MAGIC numbers used for above structures.
#define STLI_PORTMAGIC 0xe671c7a1
#define STLI_BOARDMAGIC 0x4bc6c825