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Annotation of Gnu-Mach/i386/i386at/if_3c501.h, revision 1.1

1.1     ! root        1: /* 
        !             2:  * Mach Operating System
        !             3:  * Copyright (c) 1991,1990,1989 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:  *     File:   if_3c501.h
        !            28:  *     Author: Philippe Bernadat
        !            29:  *     Date:   1989
        !            30:  *     Copyright (c) 1989 OSF Research Institute 
        !            31:  *
        !            32:  *     3COM Etherlink 3C501 Mach Ethernet drvier
        !            33:  */
        !            34: /*
        !            35:   Copyright 1990 by Open Software Foundation,
        !            36: Cambridge, MA.
        !            37: 
        !            38:                All Rights Reserved
        !            39: 
        !            40:   Permission to use, copy, modify, and distribute this software and
        !            41: its documentation for any purpose and without fee is hereby granted,
        !            42: provided that the above copyright notice appears in all copies and
        !            43: that both the copyright notice and this permission notice appear in
        !            44: supporting documentation, and that the name of OSF or Open Software
        !            45: Foundation not be used in advertising or publicity pertaining to
        !            46: distribution of the software without specific, written prior
        !            47: permission.
        !            48: 
        !            49:   OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
        !            50: INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
        !            51: IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
        !            52: CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
        !            53: LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
        !            54: NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
        !            55: WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            56: */
        !            57: 
        !            58: /* The various IE command registers */
        !            59: 
        !            60: #define        EDLC_ADDR(base) (base)          /* EDLC station address, 6 bytes*/
        !            61: #define        EDLC_RCV(base)  ((base)+0x6)    /* EDLC receive cmd. & stat.    */
        !            62: #define        EDLC_XMT(base)  ((base)+0x7)    /* EDLC transmit cmd. & stat.   */
        !            63: #define        IE_GP(base)     ((base)+0x8)    /* General Purpose pointer      */
        !            64: #define        IE_RP(base)     ((base)+0xa)    /* Receive buffer pointer       */
        !            65: #define        IE_SAPROM(base) ((base)+0xc)    /* station addr prom window     */
        !            66: #define        IE_CSR(base)    ((base)+0xe)    /* IE command and status        */
        !            67: #define        IE_BFR(base)    ((base)+0xf)    /* 1 byte window on packet buffer*/
        !            68: 
        !            69: /*  CSR Status Register (read)
        !            70:  *
        !            71:  *  _______________________________________________________________________ 
        !            72:  * |        |        |        |        |        |        |        |        |
        !            73:  * | XMTBSY |  RIDE  |   DMA  |  EDMA  |      BUFCTL     |        | RCVBSY |
        !            74:  * |________|________|________|________|________|________|________|________|
        !            75:  *
        !            76:  */
        !            77: 
        !            78: /*  CSR Command Register (write)
        !            79:  * 
        !            80:  *  _______________________________________________________________________ 
        !            81:  * |        |        |        |        |        |        |        |        |
        !            82:  * | RESET  |  RIDE  |   DMA  |        |      BUFCTL     |        |  IRE   |
        !            83:  * |________|________|________|________|________|________|________|________|
        !            84:  * 
        !            85:  */
        !            86: 
        !            87: #define        IE_XMTBSY       0x80    /* Transmitter busy (ro)                */
        !            88: #define        IE_RESET        0x80    /* reset the controller (wo)            */
        !            89: #define        IE_RIDE         0x40    /* request interrupt/DMA enable (rw)    */
        !            90: #define        IE_DMA          0x20    /* DMA request (rw)                     */
        !            91: #define        IE_EDMA         0x10    /* DMA done (ro)                        */
        !            92: #define        IE_BUFCTL       0x0c    /* mask for buffer control field (rw)   */
        !            93: #define        IE_RCVBSY       0x01    /* receive in progress (ro)             */
        !            94: #define        IE_IRE          0x01    /* Interrupt request enable             */
        !            95: 
        !            96: /* BUFCTL values */
        !            97: 
        !            98: #define        IE_LOOP         0x0c    /* 2 bit field in bits 2,3, loopback    */
        !            99: #define        IE_RCVEDLC      0x08    /* gives buffer to receiver             */
        !           100: #define        IE_XMTEDLC      0x04    /* gives buffer to transmit             */
        !           101: #define        IE_SYSBFR       0x00    /* gives buffer to processor            */
        !           102: 
        !           103: /*  XMTCSR Transmit Status Register (read)
        !           104:  * 
        !           105:  *  _______________________________________________________________________ 
        !           106:  * |        |        |        |        |        |        |        |        |
        !           107:  * |        |        |        |        |  IDLE  |  16    |   JAM  |  UNDER |
        !           108:  * |________|________|________|________|________|________|________|________|
        !           109:  * 
        !           110:  */
        !           111: 
        !           112: /*  XMTCSR Transmit Command Register (write) enables interrupts when written
        !           113:  * 
        !           114:  *  _______________________________________________________________________ 
        !           115:  * |        |        |        |        |        |        |        |        |
        !           116:  * |        |        |        |        |        |        |        |        |
        !           117:  * |________|________|________|________|________|________|________|________|
        !           118:  * 
        !           119:  */
        !           120: 
        !           121: #define        EDLC_IDLE       0x08    /* transmit idle                        */
        !           122: #define        EDLC_16         0x04    /* packet experienced 16 collisions     */
        !           123: #define        EDLC_JAM        0x02    /* packet experienced a collision       */
        !           124: #define        EDLC_UNDER      0x01    /* data underflow                       */
        !           125: 
        !           126: /*  RCVCSR Receive Status Register (read) 
        !           127:  * 
        !           128:  *  _______________________________________________________________________ 
        !           129:  * |        |        |        |        |        |        |        |        |
        !           130:  * |  STALE |        |  GOOD  |  ANY   | SHORT  | DRIBBLE|  FCS   |  OVER  |
        !           131:  * |________|________|________|________|________|________|________|________|
        !           132:  *
        !           133:  */
        !           134: 
        !           135: /*  RCVCSR Receive Command Register (write) enables interrupt when written
        !           136:  * 
        !           137:  *  _______________________________________________________________________ 
        !           138:  * |        |        |        |        |        |        |        |        |
        !           139:  * | ADDR MATCH MODE |  GOOD  |  ANY   | SHORT  | DRIBBLE|  FCS   |  OVER  |
        !           140:  * |________|________|________|________|________|________|________|________|
        !           141:  *
        !           142:  */
        !           143: 
        !           144: #define        EDLC_STALE      0x80    /* receive CSR status previously read   */
        !           145: #define        EDLC_GOOD       0x20    /* well formed packets only             */
        !           146: #define        EDLC_ANY        0x10    /* any packet, even those with errors   */
        !           147: #define        EDLC_SHORT      0x08    /* short frame                          */
        !           148: #define        EDLC_DRIBBLE    0x04    /* dribble error                        */
        !           149: #define        EDLC_FCS        0x02    /* CRC error                            */
        !           150: #define        EDLC_OVER       0x01    /* data overflow                        */
        !           151: 
        !           152: /* Address Match Mode */
        !           153: 
        !           154: #define        EDLC_NONE       0x00    /* match mode in bits 5-6, write only   */
        !           155: #define        EDLC_ALL        0x40    /* promiscuous receive, write only      */
        !           156: #define        EDLC_BROAD      0x80    /* station address plus broadcast       */
        !           157: #define        EDLC_MULTI      0xc0    /* station address plus multicast       */
        !           158:  
        !           159: /* Packet Buffer size */
        !           160: 
        !           161: #define BFRSIZ         2048
        !           162: 
        !           163: #define NAT3C501       1
        !           164: #define ETHER_ADD_SIZE 6       /* size of a MAC address */
        !           165: 
        !           166: #ifndef TRUE
        !           167: #define TRUE           1
        !           168: #endif TRUE
        !           169: #define        HZ              100
        !           170: 
        !           171: #define        DSF_LOCK        1
        !           172: #define DSF_RUNNING    2
        !           173: 
        !           174: #define MOD_ENAL 1
        !           175: #define MOD_PROM 2
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