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Annotation of gcl520h/_csb.h, revision 1.1.1.1

1.1       root        1: #ifndef __CSB_DOT_H
                      2: #define __CSB_DOT_H
                      3: 
                      4: /*
                      5:  * _CSB.H                5.20A  June 8, 1995
                      6:  *
                      7:  *  The Greenleaf Comm Library
                      8:  *
                      9:  *  Copyright (C) 1984-1995 Greenleaf Software Inc.  All Rights Reserved.
                     10:  *
                     11:  * NOTES
                     12:  *
                     13:  * This header file has the declarations necessary for accessing the
                     14:  * "private" CompuServe B+transfer support routines.  Every private
                     15:  * routine has a name that starts with an underscore.  Since the private
                     16:  * routines are actually found in several different files, there is no
                     17:  * way to make them truly private, but the high end user would be best
                     18:  * off just ignoring these routines.
                     19:  *
                     20:  * MODIFICATIONS
                     21:  *
                     22:  * April 29, 1994  5.00A : Initial release
                     23:  */
                     24: 
                     25: #define BPLUS_SEND_AHEAD_BUFFERS        5 /* Number of buffers before ACK */
                     26:                                           /* is expected                  */
                     27: #define BPLUS_DEFAULT_PACKET_SIZE       1031
                     28: #define BPLUS_MASK_LO_RANGE             0x01
                     29: #define BPLUS_MASK_HI_RANGE             0x10
                     30: 
                     31: /*
                     32:  * CompuServe B+ quoting levels and mask
                     33:  */
                     34: #define BPLUS_QUOTING_LEVEL_0     0       /* No qouting level */
                     35: #define BPLUS_QUOTING_LEVEL_1     1
                     36: #define BPLUS_QUOTING_LEVEL_2     2
                     37: #define BPLUS_QUOTING_LEVEL_3     3
                     38: #define BPLUS_QUOTING_MASK        4
                     39: 
                     40: 
                     41: typedef enum {
                     42:     BPLUS_GET_DLE,
                     43:     BPLUS_DLE_SEEN,
                     44:     BPLUS_DLE_B_SEEN,
                     45:     BPLUS_GET_DATA,
                     46:     BPLUS_GET_CHECKSUM,
                     47:     BPLUS_GET_CRC_16,
                     48:     BPLUS_GET_CRC_32,
                     49:     BPLUS_VERIFY_CRC,
                     50:     BPLUS_VERIFY_CHECKSUM,
                     51:     BPLUS_VERIFY_PACKET,
                     52:     BPLUS_SEND_NAK,
                     53:     BPLUS_SEND_ACK,
                     54:     BPLUS_SEND_ENQ,
                     55:     BPLUS_RESEND_PACKETS
                     56: } BPLUS_ACTION;
                     57: 
                     58: 
                     59: #define NORMAL_MODE      0
                     60: #define ESCAPE_SEQ_MODE  1
                     61: #define BPLUS_LOW_RANGE  7
                     62: #define BPLUS_HIGH_RANGE 11
                     63: #define BPLUS_PLUS_PACKET_SIZE  18
                     64: 
                     65: 
                     66: typedef struct pending_info {
                     67:   int seq_num;
                     68:   int packet_size;
                     69:   unsigned char *packet;
                     70: } PENDING_PACKET;
                     71: 
                     72: typedef struct _csb_options {
                     73:         int transfer_complete;
                     74:         int s_seq_num;
                     75:         int buffer_size;
                     76:         int char_timeout;
                     77:         int last_character;
                     78:         int not_masked;
                     79:         int packets_not_acked;
                     80:         PENDING_PACKET pending[ BPLUS_SEND_AHEAD_BUFFERS ];
                     81:         int pending_count;
                     82:         int next_packet;
                     83:         char check_crc;
                     84:         int sent_enq;
                     85:         int last_ack;
                     86:         int quoting;
                     87:         char mask[ 32 ];
                     88: } _CSB_DATA;
                     89: 
                     90: int GF_CONV _BPTransfer( XFER *bplus );
                     91: unsigned short int GF_CONV _CalculateBPlusCRC16( unsigned short crc,
                     92:                                                  unsigned char c );
                     93: 
                     94: #endif   /* #ifdef __CSB_DOT_H */
                     95: 

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