mirror of
https://github.com/stargieg/bacnet-stack
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126 lines
4.3 KiB
C
126 lines
4.3 KiB
C
/*####COPYRIGHTBEGIN####
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-------------------------------------------
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Copyright (C) 2005 Steve Karg
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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The Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307
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USA.
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As a special exception, if other files instantiate templates or
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use macros or inline functions from this file, or you compile
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this file and link it with other works to produce a work based
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on this file, this file does not by itself cause the resulting
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work to be covered by the GNU General Public License. However
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the source code for this file must still be made available in
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accordance with section (3) of the GNU General Public License.
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This exception does not invalidate any other reasons why a work
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based on this file might be covered by the GNU General Public
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License.
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-------------------------------------------
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####COPYRIGHTEND####*/
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#ifndef DLMSTP_H
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#define DLMSTP_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <stddef.h>
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#include "bacdef.h"
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#include "npdu.h"
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/* defines specific to MS/TP */
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#define MAX_HEADER (2+1+1+1+2+1)
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#define MAX_MPDU (MAX_HEADER+MAX_PDU)
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typedef struct dlmstp_packet {
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bool ready; /* true if ready to be sent or received */
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BACNET_ADDRESS address; /* source address */
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uint8_t frame_type; /* type of message */
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unsigned pdu_len; /* packet length */
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uint8_t pdu[MAX_MPDU]; /* packet */
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} DLMSTP_PACKET;
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/* number of MS/TP tx/rx packets */
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extern uint16_t MSTP_Packets;
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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void dlmstp_reinit(
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void);
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void dlmstp_init(
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void);
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void dlmstp_cleanup(
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void);
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void dlmstp_millisecond_timer(
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void);
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void dlmstp_task(
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void);
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/* returns number of bytes sent on success, negative on failure */
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int dlmstp_send_pdu(
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BACNET_ADDRESS * dest, /* destination address */
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BACNET_NPDU_DATA * npdu_data, /* network information */
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uint8_t * pdu, /* any data to be sent - may be null */
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unsigned pdu_len); /* number of bytes of data */
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/* This parameter represents the value of the Max_Info_Frames property of */
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/* the node's Device object. The value of Max_Info_Frames specifies the */
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/* maximum number of information frames the node may send before it must */
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/* pass the token. Max_Info_Frames may have different values on different */
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/* nodes. This may be used to allocate more or less of the available link */
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/* bandwidth to particular nodes. If Max_Info_Frames is not writable in a */
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/* node, its value shall be 1. */
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void dlmstp_set_max_info_frames(
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uint8_t max_info_frames);
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unsigned dlmstp_max_info_frames(
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void);
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/* This parameter represents the value of the Max_Master property of the */
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/* node's Device object. The value of Max_Master specifies the highest */
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/* allowable address for master nodes. The value of Max_Master shall be */
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/* less than or equal to 127. If Max_Master is not writable in a node, */
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/* its value shall be 127. */
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void dlmstp_set_max_master(
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uint8_t max_master);
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uint8_t dlmstp_max_master(
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void);
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/* MAC address for MS/TP */
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void dlmstp_set_my_address(
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uint8_t my_address);
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uint8_t dlmstp_my_address(
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void);
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/* BACnet address used in datalink */
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void dlmstp_get_my_address(
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BACNET_ADDRESS * my_address);
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void dlmstp_get_broadcast_address(
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BACNET_ADDRESS * dest); /* destination address */
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/* MS/TP state machine functions */
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uint16_t dlmstp_put_receive(
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uint8_t src, /* source MS/TP address */
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uint8_t * pdu, /* PDU data */
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uint16_t pdu_len);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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