stallion.h
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上传日期:2009-04-28
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- /*****************************************************************************/
- /*
- * 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