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/* packet-sercosiii_1v1_mst.c
* Routines for SERCOS III dissection
*
* $Id$
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <epan/packet.h>
#include "packet-sercosiii.h"
static gint hf_siii_mst_channel = -1;
static gint hf_siii_mst_type = -1;
static gint hf_siii_mst_cyclecntvalid = -1;
static gint hf_siii_mst_telno = -1;
static gint hf_siii_mst_phase = -1;
static gint hf_siii_mst_cyclecnt = -1;
static gint hf_siii_mst_crc32 = -1;
static gint ett_siii_mst = -1;
static gint ett_siii_mst_teltype = -1;
static gint ett_siii_mst_phase = -1;
static const value_string siii_mst_phase_text[]=
{
{0x00, "CP0"},
{0x01, "CP1"},
{0x02, "CP2"},
{0x03, "CP3"},
{0x04, "CP4"},
{0x80, "CP0 (Phase Change)"},
{0x81, "CP1 (Phase Change)"},
{0x82, "CP2 (Phase Change)"},
{0x83, "CP3 (Phase Change)"},
{0x84, "CP4 (Phase Change)"},
{0, NULL}
};
static const value_string siii_mst_teltype_text[]=
{
{0x00, "CP0"},
{0x01, "CP1"},
{0x02, "CP2"},
{0x03, "CP3"},
{0x04, "CP4"},
{0x80, "CP0 (Phase Change)"},
{0x81, "CP1 (Phase Change)"},
{0x82, "CP2 (Phase Change)"},
{0x83, "CP3 (Phase Change)"},
{0x84, "CP4 (Phase Change)"},
{0, NULL}
};
static const value_string siii_mst_channel_text[]=
{
{0x00, "P-Telegram"},
{0x01, "S-Telegram"},
{0, NULL}
};
static const value_string siii_mst_type_text[]=
{
{0x00, "MDT"},
{0x01, "AT"},
{0, NULL}
};
static const value_string siii_mst_cyclecntvalid_text[]=
{
{0x00, "Invalid"},
{0x01, "Valid"},
{0, NULL}
};
void dissect_siii_mst(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree)
{
proto_item* ti;
proto_tree* subtree;
proto_tree* subtree2;
ti = proto_tree_add_text(tree, tvb, 0, 6, "MST");
subtree = proto_item_add_subtree(ti, ett_siii_mst);
ti = proto_tree_add_text(subtree, tvb, 0, 1, "Telegram Type");
subtree2 = proto_item_add_subtree(ti, ett_siii_mst_teltype);
proto_tree_add_item(subtree2, hf_siii_mst_channel, tvb, 0, 1, TRUE);
proto_tree_add_item(subtree2, hf_siii_mst_type, tvb, 0, 1, TRUE);
proto_tree_add_item(subtree2, hf_siii_mst_cyclecntvalid, tvb, 0, 1, TRUE);
proto_tree_add_item(subtree2, hf_siii_mst_telno, tvb, 0, 1, TRUE);
ti = proto_tree_add_text(subtree, tvb, 1, 1, "Phase Field");
subtree2 = proto_item_add_subtree(ti, ett_siii_mst_phase);
proto_tree_add_item(subtree2, hf_siii_mst_phase, tvb, 1, 1, TRUE);
proto_tree_add_item(subtree2, hf_siii_mst_cyclecnt, tvb, 1, 1, TRUE);
proto_tree_add_item(subtree, hf_siii_mst_crc32, tvb, 2, 4, TRUE);
}
void dissect_siii_mst_init(gint proto_siii)
{
/* Setup list of header fields See Section 1.6.1 for details*/
static hf_register_info hf_siii_header[] = {
{ &hf_siii_mst_channel,
{ "Channel", "siii.channel",
FT_UINT8, BASE_DEC, VALS(siii_mst_channel_text), 0x80,
NULL, HFILL }
},
{ &hf_siii_mst_type,
{ "Telegram Type" , "siii.type",
FT_UINT8, BASE_DEC, VALS(siii_mst_type_text), 0x40,
NULL, HFILL }
},
{ &hf_siii_mst_cyclecntvalid,
{ "Cycle Count Valid", "siii.cyclecntvalid",
FT_UINT8, BASE_DEC, VALS(siii_mst_cyclecntvalid_text), 0x20,
NULL, HFILL }
},
{ &hf_siii_mst_telno,
{ "Telegram Number", "siii.telno",
FT_UINT8, BASE_DEC, NULL, 0x0F,
NULL, HFILL }
},
{ &hf_siii_mst_phase,
{ "Phase", "siii.mst.phase",
FT_UINT8, BASE_HEX, VALS(siii_mst_phase_text), 0x8F, /* CHANGED: SB: new value is 0x8F for masking out phase */
NULL, HFILL }
},
{ &hf_siii_mst_cyclecnt,
{ "Cycle Cnt", "siii.mst.cyclecnt",
FT_UINT8, BASE_DEC, NULL, 0x70, /* CHANGED: SB: new value is 0x70 for masking out cycle cnt */
NULL, HFILL }
},
{ &hf_siii_mst_crc32,
{ "CRC32", "siii.mst.crc32",
FT_UINT32, BASE_HEX, NULL, 0,
NULL, HFILL }
}
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_siii_mst,
&ett_siii_mst_teltype,
&ett_siii_mst_phase
};
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_siii, hf_siii_header, array_length(hf_siii_header));
proto_register_subtree_array(ett, array_length(ett));
}
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