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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/include/usr/util/utilbyte.H $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2012,2016 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
#ifndef UTILBYTE_H
#define UTILBYTE_H
/**
* @file utilbyte.H
*
* @brief byte to integer utility
*
*/
/*****************************************************************************/
// Byte Utility class
/*****************************************************************************/
/**
* @brief Byte Utility class
*
*/
class UtilByte
{
public:
/**
* @brief Default Constructor
*
*/
UtilByte();
/**
* @brief Destructor
*
*/
~UtilByte();
/**
* @brief extract 2 bytes from buffer and convert to uint16
*
* @param[in] i_buffer: pointer to buffer containing 2 bytes
* to be converted
* @retval: 16 bit integer value of the consecutive 2 bytes
* pointed in the buffer
*/
static uint16_t bufferTo16uint(void * i_buffer);
/**
* @brief extract 4 bytes from buffer and convert to uint32
*
* @param[in] i_buffer: pointer to buffer containing 4 bytes
* to be converted
* @retval: 32 bit integer value of the consecutive 4 bytes
* pointed in the buffer
*/
static uint32_t bufferTo32uint(void * i_buffer);
};
/*
* Constructor
*/
UtilByte::UtilByte()
{
}
/*
* Destructor
*/
UtilByte::~UtilByte()
{
}
/*
* @brief converts 2 bytes into uint16
*/
inline uint16_t UtilByte::bufferTo16uint(void * i_buffer)
{
return static_cast<uint16_t>(
((uint8_t) *static_cast<char *>(i_buffer)) << 8 |
((uint8_t) *(static_cast<char *>(i_buffer)+1)));
}
/*
* @brief converts 4 bytes into uint16
*/
inline uint32_t UtilByte::bufferTo32uint(void * i_buffer)
{
return static_cast<uint32_t>(
((uint8_t) *static_cast<char *>(i_buffer)) << 24 |
((uint8_t) *(static_cast<char *>(i_buffer)+1)) << 16 |
((uint8_t) *(static_cast<char *>(i_buffer)+2)) << 8 |
((uint8_t) *(static_cast<char *>(i_buffer)+3)));
}
#endif //UTILBYTE_H
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