fp@1835: /*****************************************************************************
fp@1835:  *
fp@1835:  *  $Id$
fp@1835:  *
fp@1835:  *  Copyright (C) 2006-2009  Florian Pose, Ingenieurgemeinschaft IgH
fp@1835:  *
fp@1835:  *  This file is part of the IgH EtherCAT Master.
fp@1835:  *
fp@1835:  *  The IgH EtherCAT Master is free software; you can redistribute it and/or
fp@1835:  *  modify it under the terms of the GNU General Public License version 2, as
fp@1835:  *  published by the Free Software Foundation.
fp@1835:  *
fp@1835:  *  The IgH EtherCAT Master is distributed in the hope that it will be useful,
fp@1835:  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
fp@1835:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
fp@1835:  *  Public License for more details.
fp@1835:  *
fp@1835:  *  You should have received a copy of the GNU General Public License along
fp@1835:  *  with the IgH EtherCAT Master; if not, write to the Free Software
fp@1835:  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
fp@1835:  *
fp@1835:  *  ---
fp@1835:  *
fp@1835:  *  The license mentioned above concerns the source code only. Using the
fp@1835:  *  EtherCAT technology and brand is only permitted in compliance with the
fp@1835:  *  industrial property and similar rights of Beckhoff Automation GmbH.
fp@1835:  *
fp@1835:  ****************************************************************************/
fp@1835: 
fp@1837: #define DEBUG 0
fp@1837: 
fp@1837: #if DEBUG
fp@1837: #include <iostream>
fp@1837: #endif
fp@1837: 
fp@1835: #include <iomanip>
fp@1835: #include <sstream>
fp@1835: using namespace std;
fp@1835: 
fp@1835: #include "DataTypeHandler.h"
fp@1835: 
fp@1835: #include "ecrt.h"
fp@1835: 
fp@1835: /*****************************************************************************/
fp@1835: 
fp@1835: DataTypeHandler::DataTypeHandler()
fp@1835: {
fp@1835: }
fp@1835: 
fp@1835: /****************************************************************************/
fp@1835: 
fp@1835: const DataTypeHandler::DataType *DataTypeHandler::findDataType(
fp@1835:         const string &str
fp@1835:         )
fp@1835: {
fp@1835:     const DataType *d;
fp@1835:     
fp@1835:     for (d = dataTypes; d->name; d++)
fp@1835:         if (str == d->name)
fp@1835:             return d;
fp@1835: 
fp@1835:     return NULL; // FIXME exception
fp@1835: }
fp@1835: 
fp@1835: /****************************************************************************/
fp@1835: 
fp@1835: const DataTypeHandler::DataType *DataTypeHandler::findDataType(uint16_t code)
fp@1835: {
fp@1835:     const DataType *d;
fp@1835:     
fp@1835:     for (d = dataTypes; d->name; d++)
fp@1835:         if (code == d->code)
fp@1835:             return d;
fp@1835: 
fp@1835:     return NULL;
fp@1835: }
fp@1835: 
fp@1835: /****************************************************************************/
fp@1835: 
fp@1835: size_t DataTypeHandler::interpretAsType(
fp@1835:         const DataType *type,
fp@1835:         const string &source,
fp@1835:         void *target,
fp@1835:         size_t targetSize
fp@1835:         )
fp@1835: { 
fp@1835:     stringstream str;
fp@1835:     size_t dataSize = type->byteSize;
fp@1835: 
fp@1837: #if DEBUG
fp@1837: 	cerr << __func__ << "(targetSize=" << targetSize << ")" << endl;
fp@1837: #endif
fp@1837: 
fp@1835:     str << source;
fp@1835:     str >> resetiosflags(ios::basefield); // guess base from prefix
fp@1835:     str.exceptions(ios::failbit);
fp@1835: 
fp@1837: #if DEBUG
fp@1837: 	cerr << "code=" << type->code << endl;
fp@1837: #endif
fp@1837: 
fp@1835:     switch (type->code) {
fp@1835:         case 0x0002: // int8
fp@1835:             {
fp@1835:                 int16_t val; // uint8_t is interpreted as char
fp@1835:                 str >> val;
fp@1835:                 if (val > 127 || val < -128)
fp@1835:                     throw ios::failure("Value out of range");
fp@1835:                 *(uint8_t *) target = val;
fp@1835:                 break;
fp@1835:             }
fp@1835:         case 0x0003: // int16
fp@1835:             {
fp@1835:                 int16_t val;
fp@1835:                 str >> val;
fp@1835:                 *(int16_t *) target = cpu_to_le16(val);
fp@1835:                 break;
fp@1835:             }
fp@1835:         case 0x0004: // int32
fp@1835:             {
fp@1835:                 int32_t val;
fp@1835:                 str >> val;
fp@1835:                 *(int32_t *) target = cpu_to_le32(val);
fp@1835:                 break;
fp@1835:             }
fp@1835:         case 0x0005: // uint8
fp@1835:             {
fp@1835:                 uint16_t val; // uint8_t is interpreted as char
fp@1835:                 str >> val;
fp@1835:                 if (val > 0xff)
fp@1835:                     throw ios::failure("Value out of range");
fp@1835:                 *(uint8_t *) target = val;
fp@1835:                 break;
fp@1835:             }
fp@1835:         case 0x0006: // uint16
fp@1835:             {
fp@1835:                 uint16_t val;
fp@1835:                 str >> val;
fp@1835:                 *(uint16_t *) target = cpu_to_le16(val);
fp@1835:                 break;
fp@1835:             }
fp@1835:         case 0x0007: // uint32
fp@1835:             {
fp@1835:                 uint32_t val;
fp@1835:                 str >> val;
fp@1835:                 *(uint32_t *) target = cpu_to_le32(val);
fp@1835:                 break;
fp@1835:             }
fp@1835:         case 0x0009: // string
fp@1835:         case 0x000a: // octet_string
fp@1835:             dataSize = str.str().size();
fp@1835:             if (dataSize >= targetSize) {
fp@1835:                 stringstream err;
fp@1835:                 err << "String too large";
fp@1835:                 throw SizeException(err.str());
fp@1835:             }
fp@1835:             str >> (char *) target;
fp@1835:             break;
fp@1835: 
fp@1835:         default:
fp@1835:             {
fp@1835:                 stringstream err;
fp@1835:                 err << "Unknown data type 0x" << hex << type->code;
fp@1835:                 throw runtime_error(err.str());
fp@1835:             }
fp@1835:     }
fp@1835: 
fp@1837: #if DEBUG
fp@1837: 	printRawData(cerr, (const uint8_t *) target, dataSize);
fp@1837: #endif
fp@1837: 
fp@1835:     return dataSize;
fp@1835: }
fp@1835: 
fp@1835: /****************************************************************************/
fp@1835: 
fp@1835: void DataTypeHandler::outputData(
fp@1835:         ostream &o,
fp@1835:         const DataType *type,
fp@1835:         void *data,
fp@1835:         size_t dataSize
fp@1835:         )
fp@1835: { 
fp@1835:     if (type->byteSize && dataSize != type->byteSize) {
fp@1835:         stringstream err;
fp@1835:         err << "Data type mismatch. Expected " << type->name
fp@1835:             << " with " << type->byteSize << " byte, but got "
fp@1835:             << dataSize << " byte.";
fp@1835:         throw SizeException(err.str());
fp@1835:     }
fp@1835: 
fp@1835:     o << setfill('0');
fp@1835: 
fp@1835:     switch (type->code) {
fp@1835:         case 0x0002: // int8
fp@1835:             {
fp@1835:                 int val = (int) *(int8_t *) data;
fp@1835:                 o << "0x" << hex << setw(2) << val
fp@1835:                     << " " << dec << val << endl;
fp@1835:             }
fp@1835:             break;
fp@1835:         case 0x0003: // int16
fp@1835:             {
fp@1835:                 int16_t val = le16_to_cpup(data);
fp@1835:                 o << "0x" << hex << setw(4) << val
fp@1835:                     << " " << dec << val << endl;
fp@1835:             }
fp@1835:             break;
fp@1835:         case 0x0004: // int32
fp@1835:             {
fp@1835:                 int32_t val = le32_to_cpup(data);
fp@1835:                 o << "0x" << hex << setw(8) << val
fp@1835:                     << " " << dec << val << endl;
fp@1835:             }
fp@1835:             break;
fp@1835:         case 0x0005: // uint8
fp@1835:             {
fp@1835:                 unsigned int val = (unsigned int) *(uint8_t *) data;
fp@1835:                 o << "0x" << hex << setw(2) << val
fp@1835:                     << " " << dec << val << endl;
fp@1835:             }
fp@1835:             break;
fp@1835:         case 0x0006: // uint16
fp@1835:             {
fp@1835:                 uint16_t val = le16_to_cpup(data);
fp@1835:                 o << "0x" << hex << setw(4) << val
fp@1835:                     << " " << dec << val << endl;
fp@1835:             }
fp@1835:             break;
fp@1835:         case 0x0007: // uint32
fp@1835:             {
fp@1835:                 uint32_t val = le32_to_cpup(data);
fp@1835:                 o << "0x" << hex << setw(8) << val
fp@1835:                     << " " << dec << val << endl;
fp@1835:             }
fp@1835:             break;
fp@1835:         case 0x0009: // string
fp@1835:             o << string((const char *) data, dataSize) << endl;
fp@1835:             break;
fp@1835:         case 0x000a: // octet_string
fp@1835:             o << string((const char *) data, dataSize) << endl;
fp@1835:             break;
fp@1835:         default:
fp@1835:             printRawData(o, (const uint8_t *) data, dataSize); // FIXME
fp@1835:             break;
fp@1835:     }
fp@1835: }
fp@1835: 
fp@1835: /****************************************************************************/
fp@1835: 
fp@1835: void DataTypeHandler::printRawData(
fp@1835:         ostream &o,
fp@1835:         const uint8_t *data,
fp@1835:         size_t size
fp@1835:         )
fp@1835: {
fp@1835:     o << hex << setfill('0');
fp@1835:     while (size--) {
fp@1835:         o << "0x" << setw(2) << (unsigned int) *data++;
fp@1835:         if (size)
fp@1835:             o << " ";
fp@1835:     }
fp@1835:     o << endl;
fp@1835: }
fp@1835: 
fp@1835: /****************************************************************************/
fp@1835: 
fp@1835: const DataTypeHandler::DataType DataTypeHandler::dataTypes[] = {
fp@1835:     {"int8",         0x0002, 1},
fp@1835:     {"int16",        0x0003, 2},
fp@1835:     {"int32",        0x0004, 4},
fp@1835:     {"uint8",        0x0005, 1},
fp@1835:     {"uint16",       0x0006, 2},
fp@1835:     {"uint32",       0x0007, 4},
fp@1835:     {"string",       0x0009, 0},
fp@1835:     {"octet_string", 0x000a, 0},
fp@1835:     {"raw",          0xffff, 0},
fp@1835:     //{"int64",        8},
fp@1835:     //{"uint64",       8},
fp@1835:     {}
fp@1835: };
fp@1835: 
fp@1835: /*****************************************************************************/