//*****************************************************************************
// (C) Automotive Lighting Reutlingen GmbH
//     Tuebinger Strasse 123, 72762 Reutlingen, Germany
//
// Automotive Lighting Reutlingen GmbH owns all the rights to this work.
// This work shall not be copied, reproduced, used, modified, transferred
// or its information shall not be disclosed without the prior written
// authorization of Automotive Lighting Reutlingen GmbH.
//*****************************************************************************

//-----------------------------------------------------------------------------
/// \file  Crc.c
///
/// \descr Self-written implementation of CRC32 Autosar, using CRC32 MPEG2 (TBD: Check  if this is CRC32 MPEG2).
///
//-----------------------------------------------------------------------------

//=============================================================================
// Includes
//=============================================================================

#include <Crc.h>

//=============================================================================
// Public  Variables
//=============================================================================

// PRQA S 3408 1 // architecture design
uint32 Crc_CalculateCRC32(const uint8*  Crc_DataPtr,
                          uint32  Crc_Length,
                          uint32  Crc_StartValue32,
                          boolean Crc_IsFirstCall)
{
  // width   = 32
  // poly    = 0x04C11DB7
  // init    = 0xFFFFFFFF
  // refin   = true
  // refout  = true
  // xorout  = 0xFFFFFFFF
  // check   = 0xCBF43926
  // residue =0x00000000DEBB20E3
  // name    = "crc32"

  //=============================================================================
  // Definitions
  //=============================================================================


  static const uint32 CRC_FINAL_XOR_CRC32 = ((uint32) 0xFFFFFFFFUL);
  static const uint32 CRC_INITIAL_VALUE32 = ((uint32) 0xFFFFFFFFUL);

  //=============================================================================
  // Private Variables
  //=============================================================================

  static const uint32 Crc_Table32[256U] =
  {
      0x00000000uL, 0x77073096uL, 0xEE0E612CuL, 0x990951BAuL,
      0x076DC419uL, 0x706AF48FuL, 0xE963A535uL, 0x9E6495A3uL,
      0x0EDB8832uL, 0x79DCB8A4uL, 0xE0D5E91EuL, 0x97D2D988uL,
      0x09B64C2BuL, 0x7EB17CBDuL, 0xE7B82D07uL, 0x90BF1D91uL,
      0x1DB71064uL, 0x6AB020F2uL, 0xF3B97148uL, 0x84BE41DEuL,
      0x1ADAD47DuL, 0x6DDDE4EBuL, 0xF4D4B551uL, 0x83D385C7uL,
      0x136C9856uL, 0x646BA8C0uL, 0xFD62F97AuL, 0x8A65C9ECuL,
      0x14015C4FuL, 0x63066CD9uL, 0xFA0F3D63uL, 0x8D080DF5uL,
      0x3B6E20C8uL, 0x4C69105EuL, 0xD56041E4uL, 0xA2677172uL,
      0x3C03E4D1uL, 0x4B04D447uL, 0xD20D85FDuL, 0xA50AB56BuL,
      0x35B5A8FAuL, 0x42B2986CuL, 0xDBBBC9D6uL, 0xACBCF940uL,
      0x32D86CE3uL, 0x45DF5C75uL, 0xDCD60DCFuL, 0xABD13D59uL,
      0x26D930ACuL, 0x51DE003AuL, 0xC8D75180uL, 0xBFD06116uL,
      0x21B4F4B5uL, 0x56B3C423uL, 0xCFBA9599uL, 0xB8BDA50FuL,
      0x2802B89EuL, 0x5F058808uL, 0xC60CD9B2uL, 0xB10BE924uL,
      0x2F6F7C87uL, 0x58684C11uL, 0xC1611DABuL, 0xB6662D3DuL,
      0x76DC4190uL, 0x01DB7106uL, 0x98D220BCuL, 0xEFD5102AuL,
      0x71B18589uL, 0x06B6B51FuL, 0x9FBFE4A5uL, 0xE8B8D433uL,
      0x7807C9A2uL, 0x0F00F934uL, 0x9609A88EuL, 0xE10E9818uL,
      0x7F6A0DBBuL, 0x086D3D2DuL, 0x91646C97uL, 0xE6635C01uL,
      0x6B6B51F4uL, 0x1C6C6162uL, 0x856530D8uL, 0xF262004EuL,
      0x6C0695EDuL, 0x1B01A57BuL, 0x8208F4C1uL, 0xF50FC457uL,
      0x65B0D9C6uL, 0x12B7E950uL, 0x8BBEB8EAuL, 0xFCB9887CuL,
      0x62DD1DDFuL, 0x15DA2D49uL, 0x8CD37CF3uL, 0xFBD44C65uL,
      0x4DB26158uL, 0x3AB551CEuL, 0xA3BC0074uL, 0xD4BB30E2uL,
      0x4ADFA541uL, 0x3DD895D7uL, 0xA4D1C46DuL, 0xD3D6F4FBuL,
      0x4369E96AuL, 0x346ED9FCuL, 0xAD678846uL, 0xDA60B8D0uL,
      0x44042D73uL, 0x33031DE5uL, 0xAA0A4C5FuL, 0xDD0D7CC9uL,
      0x5005713CuL, 0x270241AAuL, 0xBE0B1010uL, 0xC90C2086uL,
      0x5768B525uL, 0x206F85B3uL, 0xB966D409uL, 0xCE61E49FuL,
      0x5EDEF90EuL, 0x29D9C998uL, 0xB0D09822uL, 0xC7D7A8B4uL,
      0x59B33D17uL, 0x2EB40D81uL, 0xB7BD5C3BuL, 0xC0BA6CADuL,
      0xEDB88320uL, 0x9ABFB3B6uL, 0x03B6E20CuL, 0x74B1D29AuL,
      0xEAD54739uL, 0x9DD277AFuL, 0x04DB2615uL, 0x73DC1683uL,
      0xE3630B12uL, 0x94643B84uL, 0x0D6D6A3EuL, 0x7A6A5AA8uL,
      0xE40ECF0BuL, 0x9309FF9DuL, 0x0A00AE27uL, 0x7D079EB1uL,
      0xF00F9344uL, 0x8708A3D2uL, 0x1E01F268uL, 0x6906C2FEuL,
      0xF762575DuL, 0x806567CBuL, 0x196C3671uL, 0x6E6B06E7uL,
      0xFED41B76uL, 0x89D32BE0uL, 0x10DA7A5AuL, 0x67DD4ACCuL,
      0xF9B9DF6FuL, 0x8EBEEFF9uL, 0x17B7BE43uL, 0x60B08ED5uL,
      0xD6D6A3E8uL, 0xA1D1937EuL, 0x38D8C2C4uL, 0x4FDFF252uL,
      0xD1BB67F1uL, 0xA6BC5767uL, 0x3FB506DDuL, 0x48B2364BuL,
      0xD80D2BDAuL, 0xAF0A1B4CuL, 0x36034AF6uL, 0x41047A60uL,
      0xDF60EFC3uL, 0xA867DF55uL, 0x316E8EEFuL, 0x4669BE79uL,
      0xCB61B38CuL, 0xBC66831AuL, 0x256FD2A0uL, 0x5268E236uL,
      0xCC0C7795uL, 0xBB0B4703uL, 0x220216B9uL, 0x5505262FuL,
      0xC5BA3BBEuL, 0xB2BD0B28uL, 0x2BB45A92uL, 0x5CB36A04uL,
      0xC2D7FFA7uL, 0xB5D0CF31uL, 0x2CD99E8BuL, 0x5BDEAE1DuL,
      0x9B64C2B0uL, 0xEC63F226uL, 0x756AA39CuL, 0x026D930AuL,
      0x9C0906A9uL, 0xEB0E363FuL, 0x72076785uL, 0x05005713uL,
      0x95BF4A82uL, 0xE2B87A14uL, 0x7BB12BAEuL, 0x0CB61B38uL,
      0x92D28E9BuL, 0xE5D5BE0DuL, 0x7CDCEFB7uL, 0x0BDBDF21uL,
      0x86D3D2D4uL, 0xF1D4E242uL, 0x68DDB3F8uL, 0x1FDA836EuL,
      0x81BE16CDuL, 0xF6B9265BuL, 0x6FB077E1uL, 0x18B74777uL,
      0x88085AE6uL, 0xFF0F6A70uL, 0x66063BCAuL, 0x11010B5CuL,
      0x8F659EFFuL, 0xF862AE69uL, 0x616BFFD3uL, 0x166CCF45uL,
      0xA00AE278uL, 0xD70DD2EEuL, 0x4E048354uL, 0x3903B3C2uL,
      0xA7672661uL, 0xD06016F7uL, 0x4969474DuL, 0x3E6E77DBuL,
      0xAED16A4AuL, 0xD9D65ADCuL, 0x40DF0B66uL, 0x37D83BF0uL,
      0xA9BCAE53uL, 0xDEBB9EC5uL, 0x47B2CF7FuL, 0x30B5FFE9uL,
      0xBDBDF21CuL, 0xCABAC28AuL, 0x53B39330uL, 0x24B4A3A6uL,
      0xBAD03605uL, 0xCDD70693uL, 0x54DE5729uL, 0x23D967BFuL,
      0xB3667A2EuL, 0xC4614AB8uL, 0x5D681B02uL, 0x2A6F2B94uL,
      0xB40BBE37uL, 0xC30C8EA1uL, 0x5A05DF1BuL, 0x2D02EF8DuL
  };

  uint32 Crc_Value = ((Crc_IsFirstCall == TRUE) ?  CRC_INITIAL_VALUE32
                                                : (CRC_FINAL_XOR_CRC32 ^ Crc_StartValue32));

  for(uint32 Crc_LoopCounter = 0U; Crc_LoopCounter < Crc_Length; ++Crc_LoopCounter)
  {
    Crc_Value ^= 0xFFuL & (uint32) Crc_DataPtr[Crc_LoopCounter];
    Crc_Value = ( Crc_Value >> 8u ) ^ ( Crc_Table32 [(uint8)(Crc_Value )]);
  }

  /* #40 Final CRC value is XORed */
  return Crc_Value ^ CRC_FINAL_XOR_CRC32;
}


// PRQA S 3408 1 // architecture design
uint32 Crc_CalculateCRC32_Vector_AUTOSAR(const uint8*  Crc_DataPtr,
                                               uint32  Crc_Length,
                                               uint32  Crc_StartValue32,
                                               boolean Crc_IsFirstCall)
{
  // width   = 32
  // poly    = 0x04C11DB7
  // init    = 0xFFFFFFFF
  // refin   = true
  // refout  = true
  // xorout  = 0xFFFFFFFF
  // check   = 0xCBF43926
  // residue =0x00000000DEBB20E3
  // name    = "crc32"

  //=============================================================================
  // Definitions
  //=============================================================================


  #define CRC_FINAL_XOR_CRC32 ((uint32) 0xFFFFFFFFUL)
  #define CRC_INITIAL_VALUE32 ((uint32) 0xFFFFFFFFUL)

  //=============================================================================
  // Private Variables
  //=============================================================================

  static const uint32 Crc_Table32[256U] =
  {
      0x00000000uL, 0x77073096uL, 0xEE0E612CuL, 0x990951BAuL,
      0x076DC419uL, 0x706AF48FuL, 0xE963A535uL, 0x9E6495A3uL,
      0x0EDB8832uL, 0x79DCB8A4uL, 0xE0D5E91EuL, 0x97D2D988uL,
      0x09B64C2BuL, 0x7EB17CBDuL, 0xE7B82D07uL, 0x90BF1D91uL,
      0x1DB71064uL, 0x6AB020F2uL, 0xF3B97148uL, 0x84BE41DEuL,
      0x1ADAD47DuL, 0x6DDDE4EBuL, 0xF4D4B551uL, 0x83D385C7uL,
      0x136C9856uL, 0x646BA8C0uL, 0xFD62F97AuL, 0x8A65C9ECuL,
      0x14015C4FuL, 0x63066CD9uL, 0xFA0F3D63uL, 0x8D080DF5uL,
      0x3B6E20C8uL, 0x4C69105EuL, 0xD56041E4uL, 0xA2677172uL,
      0x3C03E4D1uL, 0x4B04D447uL, 0xD20D85FDuL, 0xA50AB56BuL,
      0x35B5A8FAuL, 0x42B2986CuL, 0xDBBBC9D6uL, 0xACBCF940uL,
      0x32D86CE3uL, 0x45DF5C75uL, 0xDCD60DCFuL, 0xABD13D59uL,
      0x26D930ACuL, 0x51DE003AuL, 0xC8D75180uL, 0xBFD06116uL,
      0x21B4F4B5uL, 0x56B3C423uL, 0xCFBA9599uL, 0xB8BDA50FuL,
      0x2802B89EuL, 0x5F058808uL, 0xC60CD9B2uL, 0xB10BE924uL,
      0x2F6F7C87uL, 0x58684C11uL, 0xC1611DABuL, 0xB6662D3DuL,
      0x76DC4190uL, 0x01DB7106uL, 0x98D220BCuL, 0xEFD5102AuL,
      0x71B18589uL, 0x06B6B51FuL, 0x9FBFE4A5uL, 0xE8B8D433uL,
      0x7807C9A2uL, 0x0F00F934uL, 0x9609A88EuL, 0xE10E9818uL,
      0x7F6A0DBBuL, 0x086D3D2DuL, 0x91646C97uL, 0xE6635C01uL,
      0x6B6B51F4uL, 0x1C6C6162uL, 0x856530D8uL, 0xF262004EuL,
      0x6C0695EDuL, 0x1B01A57BuL, 0x8208F4C1uL, 0xF50FC457uL,
      0x65B0D9C6uL, 0x12B7E950uL, 0x8BBEB8EAuL, 0xFCB9887CuL,
      0x62DD1DDFuL, 0x15DA2D49uL, 0x8CD37CF3uL, 0xFBD44C65uL,
      0x4DB26158uL, 0x3AB551CEuL, 0xA3BC0074uL, 0xD4BB30E2uL,
      0x4ADFA541uL, 0x3DD895D7uL, 0xA4D1C46DuL, 0xD3D6F4FBuL,
      0x4369E96AuL, 0x346ED9FCuL, 0xAD678846uL, 0xDA60B8D0uL,
      0x44042D73uL, 0x33031DE5uL, 0xAA0A4C5FuL, 0xDD0D7CC9uL,
      0x5005713CuL, 0x270241AAuL, 0xBE0B1010uL, 0xC90C2086uL,
      0x5768B525uL, 0x206F85B3uL, 0xB966D409uL, 0xCE61E49FuL,
      0x5EDEF90EuL, 0x29D9C998uL, 0xB0D09822uL, 0xC7D7A8B4uL,
      0x59B33D17uL, 0x2EB40D81uL, 0xB7BD5C3BuL, 0xC0BA6CADuL,
      0xEDB88320uL, 0x9ABFB3B6uL, 0x03B6E20CuL, 0x74B1D29AuL,
      0xEAD54739uL, 0x9DD277AFuL, 0x04DB2615uL, 0x73DC1683uL,
      0xE3630B12uL, 0x94643B84uL, 0x0D6D6A3EuL, 0x7A6A5AA8uL,
      0xE40ECF0BuL, 0x9309FF9DuL, 0x0A00AE27uL, 0x7D079EB1uL,
      0xF00F9344uL, 0x8708A3D2uL, 0x1E01F268uL, 0x6906C2FEuL,
      0xF762575DuL, 0x806567CBuL, 0x196C3671uL, 0x6E6B06E7uL,
      0xFED41B76uL, 0x89D32BE0uL, 0x10DA7A5AuL, 0x67DD4ACCuL,
      0xF9B9DF6FuL, 0x8EBEEFF9uL, 0x17B7BE43uL, 0x60B08ED5uL,
      0xD6D6A3E8uL, 0xA1D1937EuL, 0x38D8C2C4uL, 0x4FDFF252uL,
      0xD1BB67F1uL, 0xA6BC5767uL, 0x3FB506DDuL, 0x48B2364BuL,
      0xD80D2BDAuL, 0xAF0A1B4CuL, 0x36034AF6uL, 0x41047A60uL,
      0xDF60EFC3uL, 0xA867DF55uL, 0x316E8EEFuL, 0x4669BE79uL,
      0xCB61B38CuL, 0xBC66831AuL, 0x256FD2A0uL, 0x5268E236uL,
      0xCC0C7795uL, 0xBB0B4703uL, 0x220216B9uL, 0x5505262FuL,
      0xC5BA3BBEuL, 0xB2BD0B28uL, 0x2BB45A92uL, 0x5CB36A04uL,
      0xC2D7FFA7uL, 0xB5D0CF31uL, 0x2CD99E8BuL, 0x5BDEAE1DuL,
      0x9B64C2B0uL, 0xEC63F226uL, 0x756AA39CuL, 0x026D930AuL,
      0x9C0906A9uL, 0xEB0E363FuL, 0x72076785uL, 0x05005713uL,
      0x95BF4A82uL, 0xE2B87A14uL, 0x7BB12BAEuL, 0x0CB61B38uL,
      0x92D28E9BuL, 0xE5D5BE0DuL, 0x7CDCEFB7uL, 0x0BDBDF21uL,
      0x86D3D2D4uL, 0xF1D4E242uL, 0x68DDB3F8uL, 0x1FDA836EuL,
      0x81BE16CDuL, 0xF6B9265BuL, 0x6FB077E1uL, 0x18B74777uL,
      0x88085AE6uL, 0xFF0F6A70uL, 0x66063BCAuL, 0x11010B5CuL,
      0x8F659EFFuL, 0xF862AE69uL, 0x616BFFD3uL, 0x166CCF45uL,
      0xA00AE278uL, 0xD70DD2EEuL, 0x4E048354uL, 0x3903B3C2uL,
      0xA7672661uL, 0xD06016F7uL, 0x4969474DuL, 0x3E6E77DBuL,
      0xAED16A4AuL, 0xD9D65ADCuL, 0x40DF0B66uL, 0x37D83BF0uL,
      0xA9BCAE53uL, 0xDEBB9EC5uL, 0x47B2CF7FuL, 0x30B5FFE9uL,
      0xBDBDF21CuL, 0xCABAC28AuL, 0x53B39330uL, 0x24B4A3A6uL,
      0xBAD03605uL, 0xCDD70693uL, 0x54DE5729uL, 0x23D967BFuL,
      0xB3667A2EuL, 0xC4614AB8uL, 0x5D681B02uL, 0x2A6F2B94uL,
      0xB40BBE37uL, 0xC30C8EA1uL, 0x5A05DF1BuL, 0x2D02EF8DuL
  };

  uint32 Crc_Value = ((Crc_IsFirstCall == TRUE) ?  CRC_INITIAL_VALUE32
                                                : (CRC_FINAL_XOR_CRC32 ^ Crc_StartValue32));

  for(uint32 Crc_LoopCounter = 0U; Crc_LoopCounter < Crc_Length; ++Crc_LoopCounter)
  {
    Crc_Value ^= 0xFFuL & (uint32) Crc_DataPtr[Crc_LoopCounter];
    Crc_Value = ( Crc_Value >> 8u ) ^ ( Crc_Table32 [(uint8)(Crc_Value )]);
  }

  /* #40 Final CRC value is XORed */
  return Crc_Value ^ CRC_FINAL_XOR_CRC32;
}