uuid.cxx

// dawn/src/io/uuid.cxx
//
// SPDX-License-Identifier: Apache-2.0
//
 
#include "dawn/io/uuid.hxx"
 
#include <nuttx/board.h>
 
using namespace dawn;
 
int CIOUuid::init()
{
  if (getDtype() != SObjectId::DTYPE_UINT8)
    {
      DAWNERR("UUID requires DTYPE_UINT8\n");
      return -EINVAL;
    }
 
  return OK;
}
 
size_t CIOUuid::getDataDim() const
{
  return CONFIG_BOARDCTL_UNIQUEID_SIZE;
}
 
int CIOUuid::getDataImpl(IODataCmn &data, size_t len)
{
  uint8_t *uuid_buf;
  int ret;
 
  // No batch supported
 
  if (len != 1)
    {
      return -ENOTSUP;
    }
 
  // Get pointer to data buffer
 
  uuid_buf = static_cast<uint8_t *>(data.getDataPtr());
 
  // Get unique ID from board
 
  ret = board_uniqueid(uuid_buf);
  if (ret < 0)
    {
      return ret;
    }
 
  return OK;
}
 
int CIOUuid::setDataImpl(IODataCmn &data)
{
  UNUSED(data);
 
  return -ENOTSUP;
}
 
size_t CIOUuid::getDataSize() const
{
  // Return size in bytes (CONFIG_BOARDCTL_UNIQUEID_SIZE bytes of uint8_t)
 
  return CONFIG_BOARDCTL_UNIQUEID_SIZE * sizeof(uint8_t);
}