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Annotation of Gnu-Mach/i386/i386at/eisa.h, revision 1.1

1.1     ! root        1: /* 
        !             2:  * Mach Operating System
        !             3:  * Copyright (c) 1993 Carnegie Mellon University
        !             4:  * All Rights Reserved.
        !             5:  * 
        !             6:  * Permission to use, copy, modify and distribute this software and its
        !             7:  * documentation is hereby granted, provided that both the copyright
        !             8:  * notice and this permission notice appear in all copies of the
        !             9:  * software, derivative works or modified versions, and any portions
        !            10:  * thereof, and that both notices appear in supporting documentation.
        !            11:  * 
        !            12:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            13:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            14:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            15:  * 
        !            16:  * Carnegie Mellon requests users of this software to return to
        !            17:  * 
        !            18:  *  Software Distribution Coordinator  or  [email protected]
        !            19:  *  School of Computer Science
        !            20:  *  Carnegie Mellon University
        !            21:  *  Pittsburgh PA 15213-3890
        !            22:  * 
        !            23:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            24:  * the rights to redistribute these changes.
        !            25:  */
        !            26: /*
        !            27:  * Copyright 1992 by Open Software Foundation,
        !            28:  * Grenoble, FRANCE
        !            29:  *
        !            30:  *             All Rights Reserved
        !            31:  * 
        !            32:  *   Permission to use, copy, modify, and distribute this software and
        !            33:  * its documentation for any purpose and without fee is hereby granted,
        !            34:  * provided that the above copyright notice appears in all copies and
        !            35:  * that both the copyright notice and this permission notice appear in
        !            36:  * supporting documentation, and that the name of OSF or Open Software
        !            37:  * Foundation not be used in advertising or publicity pertaining to
        !            38:  * distribution of the software without specific, written prior
        !            39:  * permission.
        !            40:  * 
        !            41:  *   OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
        !            42:  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
        !            43:  * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
        !            44:  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
        !            45:  * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
        !            46:  * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
        !            47:  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            48:  */
        !            49: /*
        !            50:  * Eisa defs
        !            51:  */
        !            52: 
        !            53: #ifndef _I386AT_EISA_H_
        !            54: #define _I386AT_EISA_H_
        !            55: 
        !            56: #include <mach/boolean.h>
        !            57: 
        !            58: #if    EISA
        !            59: extern boolean_t is_eisa_bus;
        !            60: 
        !            61: #define EISA_ID_REG(board, byte)       (0xc80 | (byte) | ((board) << 12))
        !            62: 
        !            63: #define EISA_ID_REG_0  0x0
        !            64: #define EISA_ID_REG_1  0x1
        !            65: #define EISA_ID_REG_2  0x2
        !            66: #define EISA_ID_REG_3  0x3
        !            67: 
        !            68: #define EISA_SYSTEM_BOARD 0x0
        !            69: 
        !            70: struct std_board_id {
        !            71:        unsigned revision:      8,      /* Revision number */
        !            72:                 product:       8;      /* Product number */ 
        !            73: };
        !            74: 
        !            75: struct sys_board_id {
        !            76:        unsigned bus_vers:      3,      /* EISA bus version */
        !            77:                 reserved:      13;     /* Manufacturer reserved */
        !            78: };
        !            79: 
        !            80: struct board_id {
        !            81:        union {
        !            82:                struct sys_board_id sys_id;
        !            83:                struct std_board_id std_id;
        !            84:        } bd_id;
        !            85:        unsigned name_char_2:   5,      /* 3nd compressed char */
        !            86:                 name_char_1:   5,      /* 2nd compressed char */
        !            87:                 name_char_0:   5,      /* 1st compressed char */
        !            88:                 not_eisa:      1;      /* 0 if eisa board */
        !            89: };
        !            90: 
        !            91: union eisa_board_id {
        !            92:        unsigned char byte[4];
        !            93:        struct board_id id;
        !            94: };
        !            95: 
        !            96: typedef union eisa_board_id eisa_board_id_t;
        !            97: 
        !            98: 
        !            99: /* Additional DMA registers */
        !           100: 
        !           101: #define        DMA0HIPAGE      0x481           /* DMA 0 address: bits 24-31 */
        !           102: #define        DMA0HICNT       0x405           /* DMA 0 count: bits 16-23 */
        !           103: 
        !           104: 
        !           105: #else  /* EISA */
        !           106: #define is_eisa_bus FALSE
        !           107: #define probe_eisa()
        !           108: #endif /* EISA */
        !           109: 
        !           110: #endif /* _I386AT_EISA_H_ */

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