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/**
* @file
*
* @ingroup bsp_stack
*
* @brief Task stack initialization, allocation and free functions.
*/
/*
* Copyright (c) 2009
* embedded brains GmbH
* Obere Lagerstr. 30
* D-82178 Puchheim
* Germany
* rtems@embedded-brains.de
*
* 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.
*/
#ifndef LIBBSP_SHARED_STACK_ALLOC_H
#define LIBBSP_SHARED_STACK_ALLOC_H
#include <stddef.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* @defgroup bsp_stack Task Stack Allocator
*
* @ingroup bsp_kit
*
* @brief Task stack initialization, allocation and free functions.
*
* Initialize the task stack allocator with bsp_stack_initialize(). To enable
* the task stack allocator use the following in the system configuration:
*
* @code
* #include <bsp/stackalloc.h>
*
* #define CONFIGURE_INIT
*
* #include <confdefs.h>
* @endcode
*
* @{
*/
/**
* @brief Task stack management initialization.
*
* This function should be called in bsp_start() with the designated task stack
* area begin address @a begin and task stack area size @a size in bytes. The
* area boundaries have to be aligned properly.
*/
void bsp_stack_initialize(void *begin, uintptr_t size);
/**
* @brief Task stack allocator for @ref CONFIGURE_TASK_STACK_ALLOCATOR.
*
* In case the designated task stack space from bsp_stack_initialize() is
* completely in use the work space will be used to allocate the stack.
*/
void *bsp_stack_allocate(size_t size);
/**
* @brief Task stack free function for @ref CONFIGURE_TASK_STACK_DEALLOCATOR.
*/
void bsp_stack_free(void *stack);
/**
* @brief Task stack allocator configuration option.
*/
#define CONFIGURE_TASK_STACK_ALLOCATOR bsp_stack_allocate
/**
* @brief Task stack deallocator configuration option.
*/
#define CONFIGURE_TASK_STACK_DEALLOCATOR bsp_stack_free
/** @} */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* LIBBSP_SHARED_STACK_ALLOC_H */
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