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/**
* @file rtems/rtems/support.h
*
* This include file contains information about support functions for
* the RTEMS API.
*/
/* 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.com/license/LICENSE.
*
* $Id$
*/
#ifndef _RTEMS_RTEMS_SUPPORT_H
#define _RTEMS_RTEMS_SUPPORT_H
#ifdef __cplusplus
extern "C" {
#endif
#include <rtems/rtems/types.h>
/**
* @addtogroup ClassicRTEMS
* @{
*/
/**
* @brief milliseconds to microseconds
*
* This is the public milliseconds to microseconds conversion.
*/
#define RTEMS_MILLISECONDS_TO_MICROSECONDS(_ms) \
TOD_MILLISECONDS_TO_MICROSECONDS(_ms)
/**
* @brief milliseconds to ticks
*
* This is the public milliseconds to ticks conversion.
*/
#define RTEMS_MILLISECONDS_TO_TICKS(_ms) \
(TOD_MILLISECONDS_TO_MICROSECONDS(_ms) / \
rtems_configuration_get_microseconds_per_tick())
/**
* @brief microseconds to ticks
*
* This is the public microseconds to tick conversion.
*/
#define RTEMS_MICROSECONDS_TO_TICKS(_ms) \
((_ms) / rtems_configuration_get_microseconds_per_tick())
/**
* @brief get workspace information
*
* This returns information about the heap that is used as
* the RTEMS Executive Workspace.
*
* @param[in] the_info
*
* @return true if successful
*/
bool rtems_workspace_get_information(
Heap_Information_block *the_info
);
/**
* @brief allocate memory from workspace
*
* This allocates memory from the the RTEMS Executive Workspace.
*
* @param[in] bytes is the number of bytes to allocate
* @param[in] pointer is the returned pointer to allocated memory
*
* @return true if successful
*/
bool rtems_workspace_allocate(
size_t bytes,
void **pointer
);
/**
* @brief free memory back to the workspace
*
* This frees memory that was allocated from
* the RTEMS Executive Workspace.
*
* @param[in] pointer is the allocated workspace
*
* @return true if successful
*/
bool rtems_workspace_free(
void *pointer
);
#ifndef __RTEMS_APPLICATION__
#include <rtems/rtems/support.inl>
#endif
#ifdef __cplusplus
}
#endif
/**@}*/
#endif
/* end of include file */
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