--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tool/CommandSiiWrite.cpp	Thu Jul 24 13:27:06 2008 +0000
@@ -0,0 +1,139 @@
+/*****************************************************************************
+ *
+ * $Id$
+ *
+ ****************************************************************************/
+
+#include <iostream>
+#include <iomanip>
+#include <fstream>
+using namespace std;
+
+#include "CommandSiiWrite.h"
+#include "sii_crc.h"
+#include "byteorder.h"
+
+/*****************************************************************************/
+
+CommandSiiWrite::CommandSiiWrite():
+    Command("sii_write", "Write SII contents to a slave.")
+{
+}
+
+/*****************************************************************************/
+
+string CommandSiiWrite::helpString() const
+{
+    stringstream str;
+
+    str << getName() << " [OPTIONS] <FILENAME>" << endl
+        << endl 
+        << getBriefDescription() << endl
+        << endl
+        << "The file contents are checked for validity and integrity." << endl
+        << "These checks can be overridden with the --force option." << endl
+        << endl
+        << "Arguments:" << endl
+        << "  FILENAME must be a path to a file that contains a" << endl
+        << "           positive number of words." << endl
+        << endl
+        << "Command-specific options:" << endl
+        << "  --slave -s <index>  Positive numerical ring position" << endl
+        << "                      (mandatory)." << endl
+        << "  --force -f          Override validity checks." << endl
+        << endl
+        << numericInfo();
+
+    return str.str();
+}
+
+/****************************************************************************/
+
+void CommandSiiWrite::execute(MasterDevice &m, const StringVector &args)
+{
+    stringstream err;
+    ec_ioctl_slave_sii_t data;
+    ifstream file;
+    unsigned int byte_size;
+    const uint16_t *categoryHeader;
+    uint16_t categoryType, categorySize;
+    uint8_t crc;
+
+    if (slavePosition < 0) {
+        err << "'" << getName() << "' requires a slave! "
+            << "Please specify --slave.";
+        throwInvalidUsageException(err);
+    }
+    data.slave_position = slavePosition;
+
+    if (args.size() != 1) {
+        err << "'" << getName() << "' takes exactly one argument!";
+        throwInvalidUsageException(err);
+    }
+
+    file.open(args[0].c_str(), ifstream::in | ifstream::binary);
+    if (file.fail()) {
+        err << "Failed to open '" << args[0] << "'!";
+        throwCommandException(err);
+    }
+
+    // get length of file
+    file.seekg(0, ios::end);
+    byte_size = file.tellg();
+    file.seekg(0, ios::beg);
+
+    if (!byte_size || byte_size % 2) {
+        err << "Invalid file size! Must be non-zero and even.";
+        throwCommandException(err);
+    }
+
+    data.nwords = byte_size / 2;
+    if (data.nwords < 0x0041 && !force) {
+        err << "SII data too short (" << data.nwords << " words)! Mimimum is"
+                " 40 fixed words + 1 delimiter. Use --force to write anyway.";
+        throwCommandException(err);
+    }
+
+    // allocate buffer and read file into buffer
+    data.words = new uint16_t[data.nwords];
+    file.read((char *) data.words, byte_size);
+    file.close();
+
+    if (!force) {
+        // calculate checksum over words 0 to 6
+        crc = calcSiiCrc((const uint8_t *) data.words, 14);
+        if (crc != ((const uint8_t *) data.words)[14]) {
+            err << "CRC incorrect. Must be 0x"
+                << hex << setfill('0') << setw(2) << (unsigned int) crc
+                << ". Use --force to write anyway.";
+            throwCommandException(err);
+        }
+
+        // cycle through categories to detect corruption
+        categoryHeader = data.words + 0x0040U;
+        categoryType = le16tocpu(*categoryHeader);
+        while (categoryType != 0xffff) {
+            if (categoryHeader + 1 > data.words + data.nwords) {
+                err << "SII data seem to be corrupted! "
+                    << "Use --force to write anyway.";
+                throwCommandException(err);
+            }
+            categorySize = le16tocpu(*(categoryHeader + 1));
+            if (categoryHeader + 2 + categorySize + 1
+                    > data.words + data.nwords) {
+                err << "SII data seem to be corrupted! "
+                    "Use --force to write anyway.";
+                throwCommandException(err);
+            }
+            categoryHeader += 2 + categorySize;
+            categoryType = le16tocpu(*categoryHeader);
+        }
+    }
+
+    // send data to master
+    m.open(MasterDevice::ReadWrite);
+    data.offset = 0;
+	m.writeSii(&data);
+}
+
+/*****************************************************************************/