Fixed null pointer dereference on loading e100 driver for 2.6.32.
/*****************************************************************************
*
* $Id$
*
* 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 <iostream>
#include <iomanip>
using namespace std;
#include "CommandSdos.h"
#include "MasterDevice.h"
/*****************************************************************************/
CommandSdos::CommandSdos():
SdoCommand("sdos", "List SDO dictionaries.")
{
}
/*****************************************************************************/
string CommandSdos::helpString(const string &binaryBaseName) const
{
stringstream str;
str << binaryBaseName << " " << getName() << " [OPTIONS]" << endl
<< endl
<< getBriefDescription() << endl
<< endl
<< "SDO dictionary information is displayed in two layers," << endl
<< "which are indented accordingly:" << endl
<< endl
<< "1) SDOs - Hexadecimal SDO index and the name. Example:" << endl
<< endl
<< " SDO 0x1018, \"Identity object\"" << endl
<< endl
<< "2) SDO entries - SDO index and SDO entry subindex (both" << endl
<< " hexadecimal) followed by the access rights (see" << endl
<< " below), the data type, the length in bit, and the" << endl
<< " description. Example:" << endl
<< endl
<< " 0x1018:01, rwrwrw, uint32, 32 bit, \"Vendor id\"" << endl
<< endl
<< "The access rights are specified for the AL states PREOP," << endl
<< "SAFEOP and OP. An 'r' means, that the entry is readable" << endl
<< "in the corresponding state, an 'w' means writable," << endl
<< "respectively. If a right is not granted, a dash '-' is" << endl
<< "shown." << endl
<< endl
<< "If the --quiet option is given, only the SDOs are output."
<< endl << endl
<< "Command-specific options:" << endl
<< " --alias -a <alias>" << endl
<< " --position -p <pos> Slave selection. See the help of" << endl
<< " the 'slaves' command." << endl
<< " --quiet -q Only output SDOs (without the" << endl
<< " SDO entries)." << endl
<< endl
<< numericInfo();
return str.str();
}
/****************************************************************************/
void CommandSdos::execute(const StringVector &args)
{
MasterIndexList masterIndices;
SlaveList slaves;
SlaveList::const_iterator si;
bool showHeader, multiMaster;
if (args.size()) {
stringstream err;
err << "'" << getName() << "' takes no arguments!";
throwInvalidUsageException(err);
}
masterIndices = getMasterIndices();
multiMaster = masterIndices.size() > 1;
MasterIndexList::const_iterator mi;
for (mi = masterIndices.begin();
mi != masterIndices.end(); mi++) {
MasterDevice m(*mi);
m.open(MasterDevice::Read);
slaves = selectedSlaves(m);
showHeader = multiMaster || slaves.size() > 1;
for (si = slaves.begin(); si != slaves.end(); si++) {
listSlaveSdos(m, *si, showHeader);
}
}
}
/****************************************************************************/
void CommandSdos::listSlaveSdos(
MasterDevice &m,
const ec_ioctl_slave_t &slave,
bool showHeader
)
{
ec_ioctl_slave_sdo_t sdo;
ec_ioctl_slave_sdo_entry_t entry;
unsigned int i, j;
const DataType *d;
if (showHeader && slave.sdo_count)
cout << "=== Master " << m.getIndex()
<< ", Slave " << slave.position << " ===" << endl;
for (i = 0; i < slave.sdo_count; i++) {
m.getSdo(&sdo, slave.position, i);
cout << "SDO 0x"
<< hex << setfill('0')
<< setw(4) << sdo.sdo_index
<< ", \"" << sdo.name << "\"" << endl;
if (getVerbosity() == Quiet)
continue;
for (j = 0; j <= sdo.max_subindex; j++) {
m.getSdoEntry(&entry, slave.position, -i, j);
cout << " 0x" << hex << setfill('0')
<< setw(4) << sdo.sdo_index << ":"
<< setw(2) << (unsigned int) entry.sdo_entry_subindex
<< ", "
<< (entry.read_access[EC_SDO_ENTRY_ACCESS_PREOP] ? "r" : "-")
<< (entry.write_access[EC_SDO_ENTRY_ACCESS_PREOP] ? "w" : "-")
<< (entry.read_access[EC_SDO_ENTRY_ACCESS_SAFEOP] ? "r" : "-")
<< (entry.write_access[EC_SDO_ENTRY_ACCESS_SAFEOP] ? "w" : "-")
<< (entry.read_access[EC_SDO_ENTRY_ACCESS_OP] ? "r" : "-")
<< (entry.write_access[EC_SDO_ENTRY_ACCESS_OP] ? "w" : "-")
<< ", ";
if ((d = findDataType(entry.data_type))) {
cout << d->name;
} else {
cout << "type " << setw(4) << entry.data_type;
}
cout << ", " << dec << entry.bit_length << " bit, \""
<< entry.description << "\"" << endl;
}
}
}
/*****************************************************************************/