--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tool/DataTypeHandler.cpp Fri Mar 05 13:39:57 2010 +0100
@@ -0,0 +1,265 @@
+/*****************************************************************************
+ *
+ * $Id$
+ *
+ * Copyright (C) 2006-2009 Florian Pose, Ingenieurgemeinschaft IgH
+ *
+ * This file is part of the IgH EtherCAT Master.
+ *
+ * The IgH EtherCAT Master is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ * The IgH EtherCAT Master 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 the IgH EtherCAT Master; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * ---
+ *
+ * The license mentioned above concerns the source code only. Using the
+ * EtherCAT technology and brand is only permitted in compliance with the
+ * industrial property and similar rights of Beckhoff Automation GmbH.
+ *
+ ****************************************************************************/
+
+#include <iomanip>
+#include <sstream>
+using namespace std;
+
+#include "DataTypeHandler.h"
+
+#include "ecrt.h"
+
+/*****************************************************************************/
+
+DataTypeHandler::DataTypeHandler()
+{
+}
+
+/****************************************************************************/
+
+const DataTypeHandler::DataType *DataTypeHandler::findDataType(
+ const string &str
+ )
+{
+ const DataType *d;
+
+ for (d = dataTypes; d->name; d++)
+ if (str == d->name)
+ return d;
+
+ return NULL; // FIXME exception
+}
+
+/****************************************************************************/
+
+const DataTypeHandler::DataType *DataTypeHandler::findDataType(uint16_t code)
+{
+ const DataType *d;
+
+ for (d = dataTypes; d->name; d++)
+ if (code == d->code)
+ return d;
+
+ return NULL;
+}
+
+/****************************************************************************/
+
+size_t DataTypeHandler::interpretAsType(
+ const DataType *type,
+ const string &source,
+ void *target,
+ size_t targetSize
+ )
+{
+ stringstream str;
+ size_t dataSize = type->byteSize;
+
+ str << source;
+ str >> resetiosflags(ios::basefield); // guess base from prefix
+ str.exceptions(ios::failbit);
+
+ switch (type->code) {
+ case 0x0002: // int8
+ {
+ int16_t val; // uint8_t is interpreted as char
+ str >> val;
+ if (val > 127 || val < -128)
+ throw ios::failure("Value out of range");
+ *(uint8_t *) target = val;
+ break;
+ }
+ case 0x0003: // int16
+ {
+ int16_t val;
+ str >> val;
+ *(int16_t *) target = cpu_to_le16(val);
+ break;
+ }
+ case 0x0004: // int32
+ {
+ int32_t val;
+ str >> val;
+ *(int32_t *) target = cpu_to_le32(val);
+ break;
+ }
+ case 0x0005: // uint8
+ {
+ uint16_t val; // uint8_t is interpreted as char
+ str >> val;
+ if (val > 0xff)
+ throw ios::failure("Value out of range");
+ *(uint8_t *) target = val;
+ break;
+ }
+ case 0x0006: // uint16
+ {
+ uint16_t val;
+ str >> val;
+ *(uint16_t *) target = cpu_to_le16(val);
+ break;
+ }
+ case 0x0007: // uint32
+ {
+ uint32_t val;
+ str >> val;
+ *(uint32_t *) target = cpu_to_le32(val);
+ break;
+ }
+ case 0x0009: // string
+ case 0x000a: // octet_string
+ dataSize = str.str().size();
+ if (dataSize >= targetSize) {
+ stringstream err;
+ err << "String too large";
+ throw SizeException(err.str());
+ }
+ str >> (char *) target;
+ break;
+
+ default:
+ {
+ stringstream err;
+ err << "Unknown data type 0x" << hex << type->code;
+ throw runtime_error(err.str());
+ }
+ }
+
+ return dataSize;
+}
+
+/****************************************************************************/
+
+void DataTypeHandler::outputData(
+ ostream &o,
+ const DataType *type,
+ void *data,
+ size_t dataSize
+ )
+{
+ if (type->byteSize && dataSize != type->byteSize) {
+ stringstream err;
+ err << "Data type mismatch. Expected " << type->name
+ << " with " << type->byteSize << " byte, but got "
+ << dataSize << " byte.";
+ throw SizeException(err.str());
+ }
+
+ o << setfill('0');
+
+ switch (type->code) {
+ case 0x0002: // int8
+ {
+ int val = (int) *(int8_t *) data;
+ o << "0x" << hex << setw(2) << val
+ << " " << dec << val << endl;
+ }
+ break;
+ case 0x0003: // int16
+ {
+ int16_t val = le16_to_cpup(data);
+ o << "0x" << hex << setw(4) << val
+ << " " << dec << val << endl;
+ }
+ break;
+ case 0x0004: // int32
+ {
+ int32_t val = le32_to_cpup(data);
+ o << "0x" << hex << setw(8) << val
+ << " " << dec << val << endl;
+ }
+ break;
+ case 0x0005: // uint8
+ {
+ unsigned int val = (unsigned int) *(uint8_t *) data;
+ o << "0x" << hex << setw(2) << val
+ << " " << dec << val << endl;
+ }
+ break;
+ case 0x0006: // uint16
+ {
+ uint16_t val = le16_to_cpup(data);
+ o << "0x" << hex << setw(4) << val
+ << " " << dec << val << endl;
+ }
+ break;
+ case 0x0007: // uint32
+ {
+ uint32_t val = le32_to_cpup(data);
+ o << "0x" << hex << setw(8) << val
+ << " " << dec << val << endl;
+ }
+ break;
+ case 0x0009: // string
+ o << string((const char *) data, dataSize) << endl;
+ break;
+ case 0x000a: // octet_string
+ o << string((const char *) data, dataSize) << endl;
+ break;
+ default:
+ printRawData(o, (const uint8_t *) data, dataSize); // FIXME
+ break;
+ }
+}
+
+/****************************************************************************/
+
+void DataTypeHandler::printRawData(
+ ostream &o,
+ const uint8_t *data,
+ size_t size
+ )
+{
+ o << hex << setfill('0');
+ while (size--) {
+ o << "0x" << setw(2) << (unsigned int) *data++;
+ if (size)
+ o << " ";
+ }
+ o << endl;
+}
+
+/****************************************************************************/
+
+const DataTypeHandler::DataType DataTypeHandler::dataTypes[] = {
+ {"int8", 0x0002, 1},
+ {"int16", 0x0003, 2},
+ {"int32", 0x0004, 4},
+ {"uint8", 0x0005, 1},
+ {"uint16", 0x0006, 2},
+ {"uint32", 0x0007, 4},
+ {"string", 0x0009, 0},
+ {"octet_string", 0x000a, 0},
+ {"raw", 0xffff, 0},
+ //{"int64", 8},
+ //{"uint64", 8},
+ {}
+};
+
+/*****************************************************************************/