The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/eisa/eisareg.h

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    1 /*      $NetBSD: eisareg.h,v 1.7 2005/12/11 12:21:20 christos Exp $     */
    2 
    3 /*
    4  * Copyright (c) 1995, 1996 Christopher G. Demetriou
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. All advertising materials mentioning features or use of this software
   16  *    must display the following acknowledgement:
   17  *      This product includes software developed by Christopher G. Demetriou
   18  *      for the NetBSD Project.
   19  * 4. The name of the author may not be used to endorse or promote products
   20  *    derived from this software without specific prior written permission
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   32  */
   33 
   34 #ifndef __DEV_EISA_EISAREG_H__
   35 #define __DEV_EISA_EISAREG_H__
   36 
   37 /*
   38  * Register (etc.) descriptions for the EISA bus.
   39  *
   40  * Mostly culled from EISA chipset descriptions in:
   41  *      Intel Peripheral Components Databook (1992)
   42  */
   43 
   44 /*
   45  * Slot I/O space size, and I/O address of a given slot.
   46  */
   47 #define EISA_SLOT_SIZE          0x1000
   48 #define EISA_SLOT_ADDR(s)       ((s) * EISA_SLOT_SIZE)
   49 
   50 /*
   51  * Slot offsets for important/standard registers.
   52  */
   53 #define EISA_SLOTOFF_VID        0xc80           /* offset of vendor id regs */
   54 #define EISA_NVIDREGS           2
   55 #define EISA_SLOTOFF_PID        0xc82           /* offset of product id regs */
   56 #define EISA_NPIDREGS           2
   57 
   58 
   59 /*
   60  * EISA ID functions, used to manipulate and decode EISA ID registers.
   61  * ``Somebody was let out without adult supervision.''
   62  */
   63 
   64 #define EISA_IDSTRINGLEN        8       /* length of ID string, incl. NUL */
   65 
   66 /*
   67  * Vendor ID: three characters, encoded in 16 bits.
   68  *
   69  * EISA_VENDID_NODEV returns true if there's no device in the slot.
   70  * EISA_VENDID_IDDELAY returns true if there's a device in the slot,
   71  *      but that device hasn't been configured by system firmware.
   72  * EISA_VENDID_n returns the "n"th character of the vendor ID.
   73  */
   74 #define EISA_VENDID_NODEV(vid)                                          \
   75             (((vid)[0] & 0x80) != 0)
   76 #define EISA_VENDID_IDDELAY(vid)                                        \
   77             (((vid)[0] & 0xf0) == 0x70)
   78 #define EISA_VENDID_0(vid)                                              \
   79             ((((vid)[0] & 0x7c) >> 2) + '@')
   80 #define EISA_VENDID_1(vid)                                              \
   81             (((((vid)[0] & 0x03) << 3) | (((vid)[1] & 0xe0) >> 5)) + '@')
   82 #define EISA_VENDID_2(vid)                                              \
   83             (((vid)[1] & 0x1f) + '@')
   84 
   85 /*
   86  * Product ID: four hex digits, encoded in 16 bits (normal, sort of).
   87  *
   88  * EISA_PRIDID_n returns the "n"th hex digit of the product ID.
   89  */
   90 #define EISA_PRODID_0(pid)                                              \
   91             (HEXDIGITS[(((pid)[0] >> 4) & 0xf)])
   92 #define EISA_PRODID_1(pid)                                              \
   93             (HEXDIGITS[(((pid)[0] >> 0) & 0xf)])
   94 #define EISA_PRODID_2(pid)                                              \
   95             (HEXDIGITS[(((pid)[1] >> 4) & 0xf)])
   96 #define EISA_PRODID_3(pid)                                              \
   97             (HEXDIGITS[(((pid)[1] >> 0) & 0xf)])
   98 
   99 #endif /* !__DEV_EISA_EISAREG_H__ */

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