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[/] [xge_mac/] [trunk/] [tbench/] [systemc/] [sc_packet.cpp] - Rev 14
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////////////////////////////////////////////////////////////////////// //// //// //// File name "sc_packet.cpp" //// //// //// //// This file is part of the "10GE MAC" project //// //// http://www.opencores.org/cores/xge_mac/ //// //// //// //// Author(s): //// //// - A. Tanguay (antanguay@opencores.org) //// //// //// ////////////////////////////////////////////////////////////////////// //// //// //// Copyright (C) 2008 AUTHORS. All rights reserved. //// //// //// //// This source file may be used and distributed without //// //// restriction provided that this copyright statement is not //// //// removed from the file and that any derivative work contains //// //// the original copyright notice and the associated disclaimer. //// //// //// //// This source file is free software; you can redistribute it //// //// and/or modify it under the terms of the GNU Lesser General //// //// Public License as published by the Free Software Foundation; //// //// either version 2.1 of the License, or (at your option) any //// //// later version. //// //// //// //// This source 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 Lesser General Public License for more //// //// details. //// //// //// //// You should have received a copy of the GNU Lesser General //// //// Public License along with this source; if not, download it //// //// from http://www.opencores.org/lgpl.shtml //// //// //// ////////////////////////////////////////////////////////////////////// #include <stdio.h> #include <iostream> #include <sys/times.h> #include <sys/stat.h> #include "systemc.h" #include "crc.h" #include "sc_packet.h" ostream& operator<<(ostream& os, const packet_t& p) { os << "\n=====================\n" << dec << " length : " << p.length << "\n" << hex << " src_addr : 0x" << p.src_addr << "\n" << " dest_addr: 0x" << p.dest_addr << "\n" << " crc : 0x" << p.crc << "\n" << " crc_rx : 0x" << p.crc_rx << "\n" << " err_flags: 0x" << p.err_flags << "\n" << " payload : " << "\n"; for (int i = 0; i < p.length; i++) { os << p.payload[i] << " "; } cout << "\n--\n"; for (int i = 0; i < p.length; i++) { os << p.data[i] << " "; } os << dec << "\n" << endl; return os; } void pack(packet_t* p) { if (p->dest_addr != 0) { for (int i = 0; i < 6; i++) { p->payload[i] = p->dest_addr >> ((5-i)*8); } } for (int i = 0; i < p->length; i++) { p->data[i] = p->payload[i]; } } void unpack(packet_t* p) { for (int i = 0; i < p->length; i++) { p->payload[i] = p->data[i]; } } void add_crc(packet_t* p) { for (int i = p->length; i < p->length + 4; i++) { p->data[i] = p->crc >> (8 * (i - p->length)); } p->length += 4; } void strip_crc(packet_t* p) { if (p->length >= 4) { p->crc_rx = 0; for (int i = p->length - 4; i < p->length; i++) { p->crc_rx |= p->data[i] << (8 * (i - p->length - 4)); } p->length -= 4; } } void calc_crc(packet_t* p) { u_int32_t crc; p->crc = chksum_crc32(p->data, p->length); } void pad(packet_t* p, int len) { if (p->length < len) { for (int i = p->length; i < len; i++) { p->payload[i] = 0; } p->length = len; }; } bool compare(packet_t* pkta, packet_t* pktb) { bool good = true; if (pkta->length != pktb->length) { good = false; } else { if (pkta->crc != pktb->crc) { good = false; } for (int i = 0; i < pkta->length; i++) { if (pkta->payload[i] != pktb->payload[i]) { good = false; } } } return good; }
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