fp@1142: /*****************************************************************************
fp@1142:  *
fp@1142:  * $Id$
fp@1142:  *
fp@1142:  ****************************************************************************/
fp@1142: 
fp@1142: #include <iostream>
fp@1142: #include <iomanip>
fp@1142: #include <fstream>
fp@1142: using namespace std;
fp@1142: 
fp@1142: #include "CommandSiiWrite.h"
fp@1142: #include "sii_crc.h"
fp@1142: #include "byteorder.h"
fp@1142: 
fp@1142: /*****************************************************************************/
fp@1142: 
fp@1142: CommandSiiWrite::CommandSiiWrite():
fp@1142:     Command("sii_write", "Write SII contents to a slave.")
fp@1142: {
fp@1142: }
fp@1142: 
fp@1142: /*****************************************************************************/
fp@1142: 
fp@1142: string CommandSiiWrite::helpString() const
fp@1142: {
fp@1142:     stringstream str;
fp@1142: 
fp@1142:     str << getName() << " [OPTIONS] <FILENAME>" << endl
fp@1142:         << endl 
fp@1142:         << getBriefDescription() << endl
fp@1142:         << endl
fp@1142:         << "The file contents are checked for validity and integrity." << endl
fp@1142:         << "These checks can be overridden with the --force option." << endl
fp@1142:         << endl
fp@1142:         << "Arguments:" << endl
fp@1142:         << "  FILENAME must be a path to a file that contains a" << endl
fp@1142:         << "           positive number of words." << endl
fp@1142:         << endl
fp@1142:         << "Command-specific options:" << endl
fp@1142:         << "  --slave -s <index>  Positive numerical ring position" << endl
fp@1142:         << "                      (mandatory)." << endl
fp@1142:         << "  --force -f          Override validity checks." << endl
fp@1142:         << endl
fp@1142:         << numericInfo();
fp@1142: 
fp@1142:     return str.str();
fp@1142: }
fp@1142: 
fp@1142: /****************************************************************************/
fp@1142: 
fp@1142: void CommandSiiWrite::execute(MasterDevice &m, const StringVector &args)
fp@1142: {
fp@1142:     stringstream err;
fp@1142:     ec_ioctl_slave_sii_t data;
fp@1142:     ifstream file;
fp@1142:     unsigned int byte_size;
fp@1142:     const uint16_t *categoryHeader;
fp@1142:     uint16_t categoryType, categorySize;
fp@1142:     uint8_t crc;
fp@1142: 
fp@1142:     if (slavePosition < 0) {
fp@1142:         err << "'" << getName() << "' requires a slave! "
fp@1142:             << "Please specify --slave.";
fp@1142:         throwInvalidUsageException(err);
fp@1142:     }
fp@1142:     data.slave_position = slavePosition;
fp@1142: 
fp@1142:     if (args.size() != 1) {
fp@1142:         err << "'" << getName() << "' takes exactly one argument!";
fp@1142:         throwInvalidUsageException(err);
fp@1142:     }
fp@1142: 
fp@1142:     file.open(args[0].c_str(), ifstream::in | ifstream::binary);
fp@1142:     if (file.fail()) {
fp@1142:         err << "Failed to open '" << args[0] << "'!";
fp@1142:         throwCommandException(err);
fp@1142:     }
fp@1142: 
fp@1142:     // get length of file
fp@1142:     file.seekg(0, ios::end);
fp@1142:     byte_size = file.tellg();
fp@1142:     file.seekg(0, ios::beg);
fp@1142: 
fp@1142:     if (!byte_size || byte_size % 2) {
fp@1142:         err << "Invalid file size! Must be non-zero and even.";
fp@1142:         throwCommandException(err);
fp@1142:     }
fp@1142: 
fp@1142:     data.nwords = byte_size / 2;
fp@1142:     if (data.nwords < 0x0041 && !force) {
fp@1142:         err << "SII data too short (" << data.nwords << " words)! Mimimum is"
fp@1142:                 " 40 fixed words + 1 delimiter. Use --force to write anyway.";
fp@1142:         throwCommandException(err);
fp@1142:     }
fp@1142: 
fp@1142:     // allocate buffer and read file into buffer
fp@1142:     data.words = new uint16_t[data.nwords];
fp@1142:     file.read((char *) data.words, byte_size);
fp@1142:     file.close();
fp@1142: 
fp@1142:     if (!force) {
fp@1142:         // calculate checksum over words 0 to 6
fp@1142:         crc = calcSiiCrc((const uint8_t *) data.words, 14);
fp@1142:         if (crc != ((const uint8_t *) data.words)[14]) {
fp@1142:             err << "CRC incorrect. Must be 0x"
fp@1142:                 << hex << setfill('0') << setw(2) << (unsigned int) crc
fp@1142:                 << ". Use --force to write anyway.";
fp@1142:             throwCommandException(err);
fp@1142:         }
fp@1142: 
fp@1142:         // cycle through categories to detect corruption
fp@1142:         categoryHeader = data.words + 0x0040U;
fp@1142:         categoryType = le16tocpu(*categoryHeader);
fp@1142:         while (categoryType != 0xffff) {
fp@1142:             if (categoryHeader + 1 > data.words + data.nwords) {
fp@1142:                 err << "SII data seem to be corrupted! "
fp@1142:                     << "Use --force to write anyway.";
fp@1142:                 throwCommandException(err);
fp@1142:             }
fp@1142:             categorySize = le16tocpu(*(categoryHeader + 1));
fp@1142:             if (categoryHeader + 2 + categorySize + 1
fp@1142:                     > data.words + data.nwords) {
fp@1142:                 err << "SII data seem to be corrupted! "
fp@1142:                     "Use --force to write anyway.";
fp@1142:                 throwCommandException(err);
fp@1142:             }
fp@1142:             categoryHeader += 2 + categorySize;
fp@1142:             categoryType = le16tocpu(*categoryHeader);
fp@1142:         }
fp@1142:     }
fp@1142: 
fp@1142:     // send data to master
fp@1142:     m.open(MasterDevice::ReadWrite);
fp@1142:     data.offset = 0;
fp@1142: 	m.writeSii(&data);
fp@1142: }
fp@1142: 
fp@1142: /*****************************************************************************/