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Annotation of sys/dev/eisa/eisareg.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: eisareg.h,v 1.4 1996/05/05 12:42:24 deraadt Exp $     */
        !             2: /*     $NetBSD: eisareg.h,v 1.3 1996/04/09 22:46:13 cgd Exp $  */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1995, 1996 Christopher G. Demetriou
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. Redistributions in binary form must reproduce the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer in the
        !            15:  *    documentation and/or other materials provided with the distribution.
        !            16:  * 3. All advertising materials mentioning features or use of this software
        !            17:  *    must display the following acknowledgement:
        !            18:  *      This product includes software developed by Christopher G. Demetriou
        !            19:  *      for the NetBSD Project.
        !            20:  * 4. The name of the author may not be used to endorse or promote products
        !            21:  *    derived from this software without specific prior written permission
        !            22:  *
        !            23:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            24:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            25:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            26:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            27:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            28:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            29:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            30:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            31:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
        !            32:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            33:  */
        !            34:
        !            35: #ifndef __DEV_EISA_EISAREG_H__
        !            36: #define        __DEV_EISA_EISAREG_H__
        !            37:
        !            38: /*
        !            39:  * Register (etc.) descriptions for the EISA bus.
        !            40:
        !            41:  * Mostly culled from EISA chipset descriptions in:
        !            42:  *     Intel Peripheral Components Databook (1992)
        !            43:  */
        !            44:
        !            45: /*
        !            46:  * Slot I/O space size, and I/O address of a given slot.
        !            47:  */
        !            48: #define        EISA_SLOT_SIZE          0x1000
        !            49: #define        EISA_SLOT_ADDR(s)       ((s) * EISA_SLOT_SIZE)
        !            50:
        !            51: /*
        !            52:  * Slot offsets for important/standard registers.
        !            53:  */
        !            54: #define        EISA_SLOTOFF_VID        0xc80           /* offset of vendor id regs */
        !            55: #define        EISA_NVIDREGS           2
        !            56: #define        EISA_SLOTOFF_PID        0xc82           /* offset of product id regs */
        !            57: #define        EISA_NPIDREGS           2
        !            58:
        !            59: #ifdef AHA284X_HACK
        !            60: /*
        !            61:  * AHA-284x (VL bus) requires priming a register with the following values.
        !            62:  */
        !            63: #define        EISA_SLOTOFF_PRIMING    EISA_SLOTOFF_VID        /* offset */
        !            64: #define        EISA_PRIMING_VID(index) (0x80 + (index))        /* value for vendor */
        !            65: #define        EISA_PRIMING_PID(index) (0x82 + (index))        /* value for product */
        !            66: #endif
        !            67:
        !            68: /*
        !            69:  * EISA ID functions, used to manipulate and decode EISA ID registers.
        !            70:  * ``Somebody was let out without adult supervision.''
        !            71:  */
        !            72:
        !            73: #define        EISA_IDSTRINGLEN        8       /* length of ID string, incl. NUL */
        !            74:
        !            75: /*
        !            76:  * Vendor ID: three characters, encoded in 16 bits.
        !            77:  *
        !            78:  * EISA_VENDID_NODEV returns true if there's no device in the slot.
        !            79:  * EISA_VENDID_IDDELAY returns true if there's a device in the slot,
        !            80:  *     but that device hasn't been configured by system firmware.
        !            81:  * EISA_VENDID_n returns the "n"th character of the vendor ID.
        !            82:  */
        !            83: #define        EISA_VENDID_NODEV(vid)                                          \
        !            84:            (((vid)[0] & 0x80) != 0)
        !            85: #define        EISA_VENDID_IDDELAY(vid)                                        \
        !            86:            (((vid)[0] & 0xf0) == 0x70)
        !            87: #define        EISA_VENDID_0(vid)                                              \
        !            88:            ((((vid)[0] & 0x7c) >> 2) + '@')
        !            89: #define        EISA_VENDID_1(vid)                                              \
        !            90:            (((((vid)[0] & 0x03) << 3) | (((vid)[1] & 0xe0) >> 5)) + '@')
        !            91: #define        EISA_VENDID_2(vid)                                              \
        !            92:            (((vid)[1] & 0x1f) + '@')
        !            93:
        !            94: /*
        !            95:  * Product ID: four hex digits, encoded in 16 bits (normal, sort of).
        !            96:  *
        !            97:  * EISA_PRIDID_n returns the "n"th hex digit of the product ID.
        !            98:  */
        !            99: #define        __EISA_HEX_MAP  "0123456789ABCDEF"
        !           100: #define        EISA_PRODID_0(pid)                                              \
        !           101:            (__EISA_HEX_MAP[(((pid)[0] >> 4) & 0xf)])
        !           102: #define        EISA_PRODID_1(pid)                                              \
        !           103:            (__EISA_HEX_MAP[(((pid)[0] >> 0) & 0xf)])
        !           104: #define        EISA_PRODID_2(pid)                                              \
        !           105:            (__EISA_HEX_MAP[(((pid)[1] >> 4) & 0xf)])
        !           106: #define        EISA_PRODID_3(pid)                                              \
        !           107:            (__EISA_HEX_MAP[(((pid)[1] >> 0) & 0xf)])
        !           108:
        !           109: #endif /* !__DEV_EISA_EISAREG_H__ */