FreeBSD/Linux Kernel Cross Reference
sys/i386ps2/bus.h

     /* 
      * Mach Operating System
      * Copyright (c) 1991,1990,1989 Carnegie Mellon University
      * Copyright (c) 1991 IBM Corporation 
      * All Rights Reserved.
      * 
      * Permission to use, copy, modify and distribute this software and its
      * documentation is hereby granted, provided that both the copyright
      * notice and this permission notice appear in all copies of the
     * software, derivative works or modified versions, and any portions
     * thereof, and that both notices appear in supporting documentation,
     * and that the name IBM not be used in advertising or publicity 
     * pertaining to distribution of the software without specific, written
     * prior permission.
     * 
     * CARNEGIE MELLON AND IBM ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     * CONDITION.  CARNEGIE MELLON AND IBM DISCLAIM ANY LIABILITY OF ANY KIND FOR
     * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     * 
     * Carnegie Mellon requests users of this software to return to
     * 
     *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
     *  School of Computer Science
     *  Carnegie Mellon University
     *  Pittsburgh PA 15213-3890
     * 
     * any improvements or extensions that they make and grant Carnegie Mellon
     * the rights to redistribute these changes.
     */
    
    /* 
     * HISTORY
     * $Log:        bus.h,v $
     * Revision 2.3  93/03/11  14:08:48  danner
     *      u_long -> u_int
     *      [93/03/09            danner]
     * 
     *      [93/03/09            danner]
     * 
     * Revision 2.2  93/02/04  07:59:01  danner
     *      Integrate PS2 code from IBM.
     *      [93/01/18            prithvi]
     * 
     */
    /*
     * Copyright (c) 1982, 1986 Regents of the University of California.
     * All rights reserved.  The Berkeley software License Agreement
     * specifies the terms and conditions for redistribution.
     *
     *      @(#)ubavar.h    7.1 (Berkeley) 6/5/86
     */
    
    
    /*
     * per-controller & driver definitions
     */
    
    #ifndef ASSEMBLER
    #include <sys/types.h>
    
    #define i386_ctlr isa_ctlr      /* backwards compatibility */
    #define i386_dev isa_dev        /* backwards compatibility */
    #define i386_driver isa_driver  /* backwards compatibility */
    
    /*
     * Per-controller structure.
     * (E.g. one for each disk and tape controller, and other things
     * which have slave-style devices).
     *
     */
    struct isa_ctlr {
            struct  isa_driver *ctlr_driver;
            long    ctlr_ctlr;      /* controller index in driver */
            long    ctlr_alive;     /* controller exists */
            caddr_t ctlr_addr;      /* csr address */
            long    ctlr_spl;       /* spl level set upon interrupt */
            long    ctlr_pic;       /* pic line for controller */
            int     (**ctlr_intr)();/* interrupt handler */
            caddr_t ctlr_start;     /* start address in mem space */
            u_int   ctlr_len;       /* length of mem space used */
    };
    
    /*
     * Per ``device'' structure.
     * (Everything else is a ``device''.)
     *
     * If a controller has many drives attached, then there will
     * be several isa_dev structures associated
     *
     */
    struct isa_dev {
            struct  isa_driver *dev_driver;
            long    dev_unit;       /* unit number on the system */
            long    dev_ctlr;       /* ctlr number; -1 if none */
            long    dev_slave;      /* slave on controller */
            long    dev_alive;      /* Was it found at config time? */
            caddr_t dev_addr;       /* csr address */
            short   dev_spl;        /* spl level */
            long    dev_pic;        /* pic line for device */
           long    dev_dk;         /* if init 1 set to number for iostat */
           long    dev_flags;      /* parameter from system specification */
           int     (**dev_intr)(); /* interrupt handler(s) */
           caddr_t dev_start;      /* start address in mem space */
           u_int   dev_len;        /* length of mem space used */
           long    dev_type;       /* driver specific type information */
   /* this is the forward link in a list of devices on a controller */
           struct  isa_dev *dev_forw;
   /* if the device is connected to a controller, this is the controller */
           struct  isa_ctlr *dev_mi;
   };
   
   /*
    * Per-driver structure.
    *
    * Each driver defines entries for a set of routines for use
    * at boot time by the autoconfig routines.
    */
   struct isa_driver {
           int     (*driver_probe)();      /* see if a driver is really there */
           int     (*driver_slave)();      /* see if a slave is there */
           int     (*driver_attach)();     /* setup driver for a slave */
           char    *driver_dname;          /* name of a device */
           struct  isa_dev **driver_dinfo;/* backptrs to init structs */
           char    *driver_mname;          /* name of a controller */
           struct  isa_ctlr **driver_minfo;/* backpointers to init structs */
   };
   
   #define MAX_POS_SLOTS   8       /* max number of slots */
   #define MAX_POS_BYTES   8       /* max number of bytes */
   #define MAX_POS_INFO    6       /* max number of info bytes */
   
   #define POS_DISABLE_VGA 0x94
   #define POS_PORT        0x96
   #define POS_ENABLE(slot) (0x08+(slot))
   #define POS_DISABLE     0x00
   #define POS_GET_DATA(slot) inb(0x100+(slot))
   
   #define POS_ID_NONE     0xffff  /* no card present */
   
   struct pos_info {
           union {
                   u_short un_pos_id;              /* the ID as a short */
                   u_char  un_data[2];             /* first two bytes of data */
           } un;
           u_char  pos_info[MAX_POS_INFO];         /* the bytes from hardware */
   } slots[MAX_POS_SLOTS];
   
   #define pos_data un.un_data
   #define pos_id un.un_pos_id
   
   #endif

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