/*!

Copyright 2018(c) Analog Devices, Inc.

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 - Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
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   notice, this list of conditions and the following disclaimer in
   the documentation and/or other materials provided with the
   distribution.
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   contributors may be used to endorse or promote products derived
   from this software without specific prior written permission.
 - The use of this software may or may not infringe the patent rights
   of one or more patent holders.  This license does not release you
   from the requirement that you obtain separate licenses from these
   patent holders to use this software.
 - Use of the software either in source or binary form, must be run
   on or directly connected to an Analog Devices Inc. component.

THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT,
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IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT,
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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*/

//! @ingroup PMBus_SMBus
//! @{
//! @defgroup LTPSM_InFlightUpdate LTPSM_InFlightUpdate
//! @}

/*! @file
    @ingroup LTPSM_InFlightUpdate
    Library File
*/

#include "nvm.h"

#define DEBUG_FLASH 0

const unsigned char *icpFile;
const unsigned char *icpPosition;
uint32_t flashLocation = 0;

LT_SMBusNoPec *smbusNoPec__;
LT_SMBusPec *smbusPec__;

uint8_t get_hex_data(void)
{
  uint8_t c = '\0';
#if (DEBUG_FLASH)
  Serial.print("Loc ");
  Serial.println(flashLocation, HEX);
#endif
  c = pgm_read_byte_near(icpFile + flashLocation++);
#if (DEBUG_FLASH)
  Serial.print("Raw ");
  Serial.println(c, HEX);
#endif
  if ('\0' != c)
    return c;
  else
    return 0;
}

uint8_t get_filtered_hex_data(void)
{
  return filter_terminations(get_hex_data);
}

uint8_t get_record_data(void)
{
  return parse_hex(get_filtered_hex_data);
}

pRecordHeaderLengthAndType get_record(void)
{
  return parse_record(get_record_data);
}

uint8_t get_record_raw_data(void)
{
  return *(icpPosition++);
}

pRecordHeaderLengthAndType get_raw_record(void)
{
  pRecordHeaderLengthAndType record = parse_record(get_record_raw_data);
  return record;
}

NVM::NVM(LT_SMBusNoPec *smbusNoPec, LT_SMBusPec *smbusPec)
{
  smbusNoPec__ = smbusNoPec;
  smbusPec__ = smbusPec;
}

bool NVM::programWithData(const unsigned char *data)
{
  icpFile = data;
  flashLocation = 0;

  reset_parse_hex();
  if (processRecordsOnDemand(get_record) == 0)
  {
    reset_parse_hex();
    return 0;
  }
  reset_parse_hex();
  return 1;
}

bool NVM::verifyWithData(const unsigned char *data)
{
  icpFile = data;
  flashLocation = 0;

  reset_parse_hex();
  if (verifyRecordsOnDemand(get_record) == 0)
  {
    reset_parse_hex();
    return 0;
  }
  reset_parse_hex();
  return 1;
}

bool NVM::programWithRawData(const unsigned char *data)
{
  icpFile = data;
  icpPosition = icpFile;

  if (processRecordsOnDemand(get_raw_record) == 0)
  {
    return 0;
  }
  return 1;
}

bool NVM::verifyWithRawData(const unsigned char *data)
{
  icpFile = data;
  icpPosition = icpFile;

  if (verifyRecordsOnDemand(get_raw_record) == 0)
  {
    return 0;
  }

  return 1;
}