1 /*****************************************************************************

     2  *

     3  * $Id$

     4  *

     5  ****************************************************************************/

     6 

     7 #include <iostream>

     8 #include <iomanip>

     9 #include <fstream>

    10 using namespace std;

    11 

    12 #include "globals.h"

    13 #include "sii_crc.h"

    14 

    15 /****************************************************************************/

    16 

    17 const char *help_sii_write =

    18     "[OPTIONS]\n"

    19     "\n"

    20     "\n"

    21     "Command-specific options:\n";

    22 

    23 /****************************************************************************/

    24 

    25 void command_sii_write(void)

    26 {

    27     stringstream err;

    28     ec_ioctl_slave_sii_t data;

    29     ifstream file;

    30     unsigned int byte_size;

    31     const uint16_t *categoryHeader;

    32     uint16_t categoryType, categorySize;

    33     uint8_t crc;

    34 

    35     if (slavePosition < 0) {

    36         err << "'sii_write' requires a slave! Please specify --slave.";

    37         throw MasterDeviceException(err.str());

    38     }

    39     data.slave_position = slavePosition;

    40 

    41     if (commandArgs.size() != 1) {

    42         err << "'ssi_write' takes exactly one argument!";

    43         throw MasterDeviceException(err.str());

    44     }

    45 

    46     file.open(commandArgs[0].c_str(), ifstream::in | ifstream::binary);

    47     if (file.fail()) {

    48         err << "Failed to open '" << commandArgs[0] << "'!";

    49         throw MasterDeviceException(err.str());

    50     }

    51 

    52     // get length of file

    53     file.seekg(0, ios::end);

    54     byte_size = file.tellg();

    55     file.seekg(0, ios::beg);

    56 

    57     if (!byte_size || byte_size % 2) {

    58         stringstream err;

    59         err << "Invalid file size! Must be non-zero and even.";

    60         throw MasterDeviceException(err.str());

    61     }

    62 

    63     data.nwords = byte_size / 2;

    64     if (data.nwords < 0x0041 && !force) {

    65         err << "SII data too short (" << data.nwords << " words)! Mimimum is"

    66                 " 40 fixed words + 1 delimiter. Use --force to write anyway.";

    67         throw MasterDeviceException(err.str());

    68     }

    69 

    70     // allocate buffer and read file into buffer

    71     data.words = new uint16_t[data.nwords];

    72     file.read((char *) data.words, byte_size);

    73     file.close();

    74 

    75     if (!force) {

    76         // calculate checksum over words 0 to 6

    77         crc = calcSiiCrc((const uint8_t *) data.words, 14);

    78         if (crc != ((const uint8_t *) data.words)[14]) {

    79             err << "CRC incorrect. Must be 0x"

    80                 << hex << setfill('0') << setw(2) << (unsigned int) crc

    81                 << ". Use --force to write anyway.";

    82             throw MasterDeviceException(err.str());

    83         }

    84 

    85         // cycle through categories to detect corruption

    86         categoryHeader = data.words + 0x0040U;

    87         categoryType = le16tocpu(*categoryHeader);

    88         while (categoryType != 0xffff) {

    89             if (categoryHeader + 1 > data.words + data.nwords) {

    90                 err << "SII data seem to be corrupted! "

    91                     << "Use --force to write anyway.";

    92                 throw MasterDeviceException(err.str());

    93             }

    94             categorySize = le16tocpu(*(categoryHeader + 1));

    95             if (categoryHeader + 2 + categorySize + 1

    96                     > data.words + data.nwords) {

    97                 err << "SII data seem to be corrupted! "

    98                     "Use --force to write anyway.";

    99                 throw MasterDeviceException(err.str());

   100             }

   101             categoryHeader += 2 + categorySize;

   102             categoryType = le16tocpu(*categoryHeader);

   103         }

   104     }

   105 

   106     // send data to master

   107     masterDev.open(MasterDevice::ReadWrite);

   108     data.offset = 0;

   109 	masterDev.writeSii(&data);

   110 }

   111 

   112 /*****************************************************************************/