FreeBSD/Linux Kernel Cross Reference
sys/i386at/i82586.h

     /* 
      * Mach Operating System
      * Copyright (c) 1991,1990,1989 Carnegie Mellon University
      * 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.
     * 
     * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     * CONDITION.  CARNEGIE MELLON DISCLAIMS 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:        i82586.h,v $
     * Revision 2.7  91/05/14  16:24:04  mrt
     *      Correcting copyright
     * 
     * Revision 2.6  91/02/05  17:17:26  mrt
     *      Changed to new Mach copyright
     *      [91/02/01  17:43:29  mrt]
     * 
     * Revision 2.5  90/11/26  14:49:45  rvb
     *      jsb bet me to XMK34, sigh ...
     *      [90/11/26            rvb]
     *      Synched 2.5 & 3.0 at I386q (r1.4.1.5) & XMK35 (r2.5)
     *      [90/11/15            rvb]
     * 
     *      Document error bits in Xmt and Rcv.
     *      [90/10/08            rvb]
     * 
     * Revision 2.4  90/11/05  14:28:00  rpd
     *      Document error bits in Xmt and Rcv.
     *      [90/10/08            rvb]
     * 
     * Revision 2.3  90/08/27  21:59:55  dbg
     *      Add type definition for ushort.
     *      [90/07/17            dbg]
     * 
     * Revision 2.2  90/05/03  15:42:29  dbg
     *      Alter for pure kernel.
     *      [90/04/18            dbg]
     * 
     * Revision 1.4.1.4  90/07/10  11:43:36  rvb
     *      Comment some symbolic constants.        [kupfer]
     * 
     * Revision 1.4.1.3  90/02/28  15:49:41  rvb
     *      Fix numerous typo's in Olivetti disclaimer.
     *      [90/02/28            rvb]
     * 
     * Revision 1.4.1.2  90/01/08  13:31:27  rvb
     *      Add Olivetti copyright.
     *      [90/01/08            rvb]
     * 
     * Revision 1.4.1.1  89/11/10  09:49:44  rvb
     *      Redone by Eugene Kuerner at ORC.
     * 
     * Revision 1.3  89/11/01  11:58:44  eugene
     * revised some structures for word or 16bit accesses
     * 
     * 
     */
     
    /*
      Copyright 1988, 1989 by Olivetti Advanced Technology Center, Inc.,
    Cupertino, California.
    
                    All Rights Reserved
    
      Permission to use, copy, modify, and distribute this software and
    its documentation for any purpose and without fee is hereby
    granted, provided that the above copyright notice appears in all
    copies and that both the copyright notice and this permission notice
    appear in supporting documentation, and that the name of Olivetti
    not be used in advertising or publicity pertaining to distribution
    of the software without specific, written prior permission.
    
      OLIVETTI DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
    INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
    IN NO EVENT SHALL OLIVETTI BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
    CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
    LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
    NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUR OF OR IN CONNECTION
    WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
    */
    
   /*
    * Defines for managing the status word of the 82586 cpu.  For details see
    * the Intel LAN Component User's Manual starting at p. 2-14.
    *
    */
   
   #define SCB_SW_INT      0xf000
   #define SCB_SW_CX       0x8000          /* CU finished w/ int. bit set */
   #define SCB_SW_FR       0x4000          /* RU finished receiving a frame */
   #define SCB_SW_CNA      0x2000          /* CU left active state */
   #define SCB_SW_RNR      0x1000          /* RU left ready state */
   
   /* 
    * Defines for managing the Command Unit Status portion of the 82586
    * System Control Block.
    *
    */
   
   #define SCB_CUS_IDLE    0x0000
   #define SCB_CUS_SUSPND  0x0100
   #define SCB_CUS_ACTV    0x0200
   
   /* 
    * Defines for managing the Receive Unit Status portion of the System
    * Control Block.
    *
    */
   
   #define SCB_RUS_IDLE    0x0000
   #define SCB_RUS_SUSPND  0x0010
   #define SCB_RUS_NORESRC 0x0020
   #define SCB_RUS_READY   0x0040
   
   /*
    * Defines that manage portions of the Command Word in the System Control
    * Block of the 82586.  Below are the Interrupt Acknowledge Bits and their
    * appropriate masks.
    *
    */
   
   #define SCB_ACK_CX      0x8000
   #define SCB_ACK_FR      0x4000
   #define SCB_ACK_CNA     0x2000
   #define SCB_ACK_RNR     0x1000
   
   /* 
    * Defines for managing the Command Unit Control word, and the Receive
    * Unit Control word.  The software RESET bit is also defined.
    *
    */
   
   #define SCB_CU_STRT     0x0100
   #define SCB_CU_RSUM     0x0200
   #define SCB_CU_SUSPND   0x0300
   #define SCB_CU_ABRT     0x0400
   
   #define SCB_RESET       0x0080
   
   #define SCB_RU_STRT     0x0010
   #define SCB_RU_RSUM     0x0020
   #define SCB_RU_SUSPND   0x0030
   #define SCB_RU_ABRT     0x0040
   
   
   /*
    * The following define Action Commands for the 82586 chip.
    *
    */
   
   #define AC_NOP          0x00
   #define AC_IASETUP      0x01
   #define AC_CONFIGURE    0x02
   #define AC_MCSETUP      0x03
   #define AC_TRANSMIT     0x04
   #define AC_TDR          0x05
   #define AC_DUMP         0x06
   #define AC_DIAGNOSE     0x07
   
   
   /*
    * Defines for General Format for Action Commands, both Status Words, and
    * Command Words.
    *
    */
   
   #define AC_SW_C         0x8000
   #define AC_SW_B         0x4000
   #define AC_SW_OK        0x2000
   #define AC_SW_A         0x1000
   #define TC_CARRIER      0x0400
   #define TC_CLS          0x0200
   #define TC_DMA          0x0100
   #define TC_DEFER        0x0080
   #define TC_SQE          0x0040
   #define TC_COLLISION    0x0020
   #define AC_CW_EL        0x8000
   #define AC_CW_S         0x4000
   #define AC_CW_I         0x2000
   
   /*
    * Specific defines for the transmit action command.
    *
    */
   
   #define TBD_SW_EOF      0x8000
   #define TBD_SW_COUNT    0x3fff
   
   /*
    * Specific defines for the receive frame actions.
    *
    */
   
   #define RBD_SW_EOF      0x8000
   #define RBD_SW_COUNT    0x3fff
   
   #define RFD_DONE        0x8000
   #define RFD_BUSY        0x4000
   #define RFD_OK          0x2000
   #define RFD_CRC         0x0800
   #define RFD_ALN         0x0400
   #define RFD_RSC         0x0200
   #define RFD_DMA         0x0100
   #define RFD_SHORT       0x0080
   #define RFD_EOF         0x0040
   #define RFD_EL          0x8000
   #define RFD_SUSP        0x4000
   /*
    * 82586 chip specific structure definitions.  For details, see the Intel
    * LAN Components manual.
    *
    */
   
   
   typedef struct  {
           u_short scp_sysbus;
           u_short scp_unused[2];
           u_short scp_iscp;
           u_short scp_iscp_base;
   } scp_t;
   
   
   typedef struct  {
           u_short iscp_busy;
           u_short iscp_scb_offset;
           u_short iscp_scb;
           u_short iscp_scb_base;
   } iscp_t;
   
   
   typedef struct  {
           u_short scb_status;
           u_short scb_command;
           u_short scb_cbl_offset;
           u_short scb_rfa_offset;
           u_short scb_crcerrs;
           u_short scb_alnerrs;
           u_short scb_rscerrs;
           u_short scb_ovrnerrs;
   } scb_t;
   
   
   typedef struct  {
           u_short tbd_offset;
           u_char  dest_addr[6];
           u_short length;
   } transmit_t;
   
   
   typedef struct  {
           u_short fifolim_bytecnt;
           u_short addrlen_mode;
           u_short linprio_interframe;
           u_short slot_time;
           u_short hardware;
           u_short min_frame_len;
   } configure_t;
   
   
   typedef struct  {
           u_short ac_status;
           u_short ac_command;
           u_short ac_link_offset;
           union   {
                   transmit_t      transmit;
                   configure_t     configure;
                   u_char          iasetup[6];
           } cmd;
   } ac_t;
           
   
   typedef struct  {
           u_short act_count;
           u_short next_tbd_offset;
           u_short buffer_addr;
           u_short buffer_base;
   } tbd_t;
   
   
   typedef struct  {
           u_short status;
           u_short command;
           u_short link_offset;
           u_short rbd_offset;
           u_char  destination[6];
           u_char  source[6];
           u_short length;
   } fd_t;
   
   
   typedef struct  {
           u_short status;
           u_short next_rbd_offset;
           u_short buffer_addr;
           u_short buffer_base;
           u_short size;
   } rbd_t;

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