155 lines
4.2 KiB
C
155 lines
4.2 KiB
C
/*****************************************************************************/
|
|
|
|
/*
|
|
* stallion.h -- stallion 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
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/version.h>
|
|
|
|
/*****************************************************************************/
|
|
#ifndef _STALLION_H
|
|
#define _STALLION_H
|
|
/*****************************************************************************/
|
|
|
|
/*
|
|
* Define important driver constants here.
|
|
*/
|
|
#define STL_MAXBRDS 4
|
|
#define STL_MAXPANELS 4
|
|
#define STL_MAXBANKS 8
|
|
#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 classic 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 stlport {
|
|
unsigned long magic;
|
|
int portnr;
|
|
int panelnr;
|
|
int brdnr;
|
|
int ioaddr;
|
|
int uartaddr;
|
|
int pagenr;
|
|
long istate;
|
|
int flags;
|
|
int baud_base;
|
|
int custom_divisor;
|
|
int close_delay;
|
|
int closing_wait;
|
|
int refcount;
|
|
int openwaitcnt;
|
|
int brklen;
|
|
unsigned int sigs;
|
|
unsigned int rxignoremsk;
|
|
unsigned int rxmarkmsk;
|
|
unsigned int imr;
|
|
unsigned int crenable;
|
|
unsigned long clk;
|
|
unsigned long hwid;
|
|
void *uartp;
|
|
struct tty_struct *tty;
|
|
wait_queue_head_t open_wait;
|
|
wait_queue_head_t close_wait;
|
|
struct work_struct tqueue;
|
|
comstats_t stats;
|
|
stlrq_t tx;
|
|
} stlport_t;
|
|
|
|
typedef struct stlpanel {
|
|
unsigned long magic;
|
|
int panelnr;
|
|
int brdnr;
|
|
int pagenr;
|
|
int nrports;
|
|
int iobase;
|
|
void *uartp;
|
|
void (*isr)(struct stlpanel *panelp, unsigned int iobase);
|
|
unsigned int hwid;
|
|
unsigned int ackmask;
|
|
stlport_t *ports[STL_PORTSPERPANEL];
|
|
} stlpanel_t;
|
|
|
|
typedef struct stlbrd {
|
|
unsigned long magic;
|
|
int brdnr;
|
|
int brdtype;
|
|
int state;
|
|
int nrpanels;
|
|
int nrports;
|
|
int nrbnks;
|
|
int irq;
|
|
int irqtype;
|
|
int (*isr)(struct stlbrd *brdp);
|
|
unsigned int ioaddr1;
|
|
unsigned int ioaddr2;
|
|
unsigned int iosize1;
|
|
unsigned int iosize2;
|
|
unsigned int iostatus;
|
|
unsigned int ioctrl;
|
|
unsigned int ioctrlval;
|
|
unsigned int hwid;
|
|
unsigned long clk;
|
|
unsigned int bnkpageaddr[STL_MAXBANKS];
|
|
unsigned int bnkstataddr[STL_MAXBANKS];
|
|
stlpanel_t *bnk2panel[STL_MAXBANKS];
|
|
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
|