partimpl.h

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/*  COPYRIGHT (c) 1989-2008.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.org/license/LICENSE.
 */

#ifndef _RTEMS_RTEMS_PARTIMPL_H
#define _RTEMS_RTEMS_PARTIMPL_H

#include <rtems/rtems/part.h>
#include <rtems/score/chainimpl.h>
#include <rtems/score/objectimpl.h>

#ifdef __cplusplus
extern "C" {
#endif

#ifndef RTEMS_PART_EXTERN
#define RTEMS_PART_EXTERN extern
#endif

RTEMS_PART_EXTERN Objects_Information _Partition_Information;

void _Partition_Manager_initialization(void);

RTEMS_INLINE_ROUTINE void *_Partition_Allocate_buffer (
   Partition_Control *the_partition
)
{
  return _Chain_Get( &the_partition->Memory );
}

RTEMS_INLINE_ROUTINE void _Partition_Free_buffer (
  Partition_Control *the_partition,
  Chain_Node        *the_buffer
)
{
  _Chain_Append( &the_partition->Memory, the_buffer );
}

RTEMS_INLINE_ROUTINE bool _Partition_Is_buffer_on_boundary (
  void              *the_buffer,
  Partition_Control *the_partition
)
{
  uint32_t     offset;

  offset = (uint32_t) _Addresses_Subtract(
    the_buffer,
    the_partition->starting_address
  );

  return ((offset % the_partition->buffer_size) == 0);
}

RTEMS_INLINE_ROUTINE bool _Partition_Is_buffer_valid (
   Chain_Node        *the_buffer,
   Partition_Control *the_partition
)
{
  void *starting;
  void *ending;

  starting = the_partition->starting_address;
  ending   = _Addresses_Add_offset( starting, the_partition->length );

  return (
    _Addresses_Is_in_range( the_buffer, starting, ending ) &&
    _Partition_Is_buffer_on_boundary( the_buffer, the_partition )
  );
}

RTEMS_INLINE_ROUTINE bool _Partition_Is_buffer_size_aligned (
   uint32_t   buffer_size
)
{
  return ((buffer_size % CPU_PARTITION_ALIGNMENT) == 0);
}

RTEMS_INLINE_ROUTINE Partition_Control *_Partition_Allocate ( void )
{
  return (Partition_Control *) _Objects_Allocate( &_Partition_Information );
}

RTEMS_INLINE_ROUTINE void _Partition_Free (
   Partition_Control *the_partition
)
{
  _Objects_Free( &_Partition_Information, &the_partition->Object );
}

RTEMS_INLINE_ROUTINE Partition_Control *_Partition_Get (
  Objects_Id         id,
  Objects_Locations *location
)
{
  return (Partition_Control *)
    _Objects_Get( &_Partition_Information, id, location );
}

#ifdef __cplusplus
}
#endif

#if defined(RTEMS_MULTIPROCESSING)
#include <rtems/rtems/partmp.h>
#endif

#endif
/* end of include file */