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Annotation of kernel/bsd/netat/at/atp.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: 
        !            25: /*
        !            26:  *
        !            27:  * ORIGINS: 82
        !            28:  *
        !            29:  * APPLE CONFIDENTIAL
        !            30:  * (C) COPYRIGHT Apple Computer, Inc. 1992-1996
        !            31:  * All Rights Reserved
        !            32:  *
        !            33:  */                                                                   
        !            34: 
        !            35: /* Definitions for ATP protocol and streams module, per 
        !            36:  * AppleTalk Transaction Protocol documentation from
        !            37:  * `Inside AppleTalk', July 14, 1986.
        !            38:  */
        !            39: 
        !            40: 
        !            41: #ifndef __ATP__
        !            42: #define __ATP__
        !            43: 
        !            44: #ifndef UIOSEG_USER
        !            45: # include <sys/uio.h>
        !            46: #endif
        !            47: 
        !            48: 
        !            49: /* DDP ATP protocol type */
        !            50: 
        !            51: #define ATP_DDP_TYPE           0x03    /* ATP packet type */
        !            52: 
        !            53: 
        !            54: /* ATP function codes */
        !            55: 
        !            56: #define ATP_CMD_TREQ           0x01    /* TRequest packet  */
        !            57: #define ATP_CMD_TRESP          0x02    /* TResponse packet */
        !            58: #define ATP_CMD_TREL           0x03    /* TRelease packet  */
        !            59: 
        !            60: 
        !            61: /* Miscellaneous definitions */
        !            62: 
        !            63: #define        ATP_DEF_RETRIES     8   /* Default for maximum retry count */
        !            64: #define        ATP_DEF_INTERVAL    2   /* Default for retry interval in seconds */
        !            65: 
        !            66: #define ATP_TRESP_MAX       8  /* Maximum number of Tresp pkts */
        !            67: 
        !            68: #define ATP_HDR_SIZE        8          /* Size of the ATP header */
        !            69: #define ATP_DATA_SIZE       578        /* Maximum size of the ATP data area */
        !            70: 
        !            71: /* Consts for asynch support */
        !            72: #define        ATP_ASYNCH_REQ  1
        !            73: #define        ATP_ASYNCH_RESP 2
        !            74: 
        !            75: /* Timer values for XO release timers */
        !            76: #define        ATP_XO_DEF_REL_TIME     0
        !            77: #define        ATP_XO_30SEC            0
        !            78: #define        ATP_XO_1MIN             1
        !            79: #define        ATP_XO_2MIN             2
        !            80: #define        ATP_XO_4MIN             3
        !            81: #define        ATP_XO_8MIN             4
        !            82: 
        !            83: typedef struct {
        !            84:         unsigned       cmd : 2,
        !            85:                        xo : 1,
        !            86:                        eom : 1,
        !            87:                        sts : 1,
        !            88:                        xo_relt : 3;
        !            89:         u_char         bitmap;
        !            90:        ua_short       tid;
        !            91:         ua_long        user_bytes;
        !            92:         u_char         data[ATP_DATA_SIZE];
        !            93: } at_atp_t;
        !            94: 
        !            95: 
        !            96: /* Response buffer structure for atp_sendreq() and atp_sendrsp() */
        !            97: 
        !            98: typedef        struct  at_resp {
        !            99:        u_char  bitmap;                         /* Bitmap of responses */
        !           100:        u_char  filler[3];                      /* Force 68K to RISC alignment */
        !           101:        struct  iovec resp[ATP_TRESP_MAX];      /* Buffer for response data */
        !           102:        long    userdata[ATP_TRESP_MAX];        /* Buffer for response user data */
        !           103: } at_resp_t;
        !           104: 
        !           105: #endif /* __ATP__ */

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