mirror of
https://gitlab.com/etherlab.org/ethercat.git
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148 lines
4.0 KiB
C++
148 lines
4.0 KiB
C++
/*****************************************************************************
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*
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* $Id$
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*
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****************************************************************************/
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#include <iostream>
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#include <iomanip>
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#include <fstream>
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using namespace std;
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#include "CommandPhyWrite.h"
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#include "sii_crc.h"
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/*****************************************************************************/
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CommandPhyWrite::CommandPhyWrite():
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Command("phy_write", "Write data to a slave's physical memory.")
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{
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}
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/*****************************************************************************/
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string CommandPhyWrite::helpString() const
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{
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stringstream str;
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str << getName() << " [OPTIONS] <OFFSET> <FILENAME>" << endl
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<< endl
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<< getBriefDescription() << endl
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<< endl
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<< "This command requires a single slave to be selected." << endl
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<< endl
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<< "Arguments:" << endl
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<< " OFFSET must be the physical memory offset to start." << endl
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<< " FILENAME must be a path to a file with data to write." << endl
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<< " If it is '-', data are read from stdin." << endl
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<< endl
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<< "Command-specific options:" << endl
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<< " --alias -a <alias>" << endl
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<< " --position -p <pos> Slave selection. See the help of" << endl
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<< " the 'slaves' command." << endl
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<< endl
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<< numericInfo();
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return str.str();
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}
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/****************************************************************************/
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void CommandPhyWrite::execute(MasterDevice &m, const StringVector &args)
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{
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stringstream strOffset, err;
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ec_ioctl_slave_phy_t data;
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ifstream file;
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SlaveList slaves;
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if (args.size() != 2) {
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err << "'" << getName() << "' takes exactly one argument!";
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throwInvalidUsageException(err);
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}
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strOffset << args[0];
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strOffset
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>> resetiosflags(ios::basefield) // guess base from prefix
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>> data.offset;
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if (strOffset.fail()) {
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err << "Invalid offset '" << args[0] << "'!";
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throwInvalidUsageException(err);
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}
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if (args[1] == "-") {
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loadPhyData(&data, cin);
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} else {
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file.open(args[1].c_str(), ifstream::in | ifstream::binary);
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if (file.fail()) {
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err << "Failed to open '" << args[0] << "'!";
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throwCommandException(err);
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}
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loadPhyData(&data, file);
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file.close();
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}
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if ((uint32_t) data.offset + data.length > 0xffff) {
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err << "Offset and length exceeding 64k!";
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delete [] data.data;
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throwInvalidUsageException(err);
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}
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try {
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m.open(MasterDevice::ReadWrite);
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} catch (MasterDeviceException &e) {
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delete [] data.data;
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throw e;
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}
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slaves = selectedSlaves(m);
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if (slaves.size() != 1) {
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delete [] data.data;
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throwSingleSlaveRequired(slaves.size());
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}
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data.slave_position = slaves.front().position;
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// send data to master
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try {
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m.writePhy(&data);
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} catch (MasterDeviceException &e) {
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delete [] data.data;
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throw e;
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}
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if (getVerbosity() == Verbose) {
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cerr << "Physical memory writing finished." << endl;
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}
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delete [] data.data;
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}
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/*****************************************************************************/
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void CommandPhyWrite::loadPhyData(
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ec_ioctl_slave_phy_t *data,
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const istream &in
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)
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{
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stringstream err;
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ostringstream tmp;
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tmp << in.rdbuf();
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string const &contents = tmp.str();
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if (getVerbosity() == Verbose) {
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cerr << "Read " << contents.size() << " bytes of data." << endl;
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}
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if (contents.size() > 0xffff) {
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err << "Invalid data size " << contents.size() << "!";
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throwInvalidUsageException(err);
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}
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data->length = contents.size();
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// allocate buffer and read file into buffer
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data->data = new uint8_t[data->length];
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contents.copy((char *) data->data, contents.size());
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}
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/*****************************************************************************/
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