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Annotation of kernel/bsd/netat/at/atp.h, revision 1.1.1.1

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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