/*
 * This file is subject to the terms of the GFX License. If a copy of
 * the license was not distributed with this file, you can obtain one at:
 *
 *              http://ugfx.org/license.html
 */

#include "gfx.h"
#include "ff.h"

#if _FS_REENTRANT

/*------------------------------------------------------------------------*/
/* Static array of Synchronization Objects                                */
/*------------------------------------------------------------------------*/
static gfxSem ff_sem[_VOLUMES];

/*------------------------------------------------------------------------*/
/* Create a Synchronization Object                                        */
/*------------------------------------------------------------------------*/
int ff_cre_syncobj(BYTE vol, _SYNC_t *sobj)
{
	*sobj = ff_sem[vol];
	gfxSemInit(sobj, 1, MAX_SEMAPHORE_COUNT);

	return 1;
}

/*------------------------------------------------------------------------*/
/* Delete a Synchronization Object                                        */
/*------------------------------------------------------------------------*/
int ff_del_syncobj(_SYNC_t sobj)
{
	gfxSemDestroy( (gfxSem*)&sobj );

	return 1;
}

/*------------------------------------------------------------------------*/
/* Request Grant to Access the Volume                                     */
/*------------------------------------------------------------------------*/
int ff_req_grant(_SYNC_t sobj)
{
	if (gfxSemWait( (gfxSem*)&sobj, (delaytime_t)_FS_TIMEOUT) )
		return TRUE;
	return FALSE;
}

/*------------------------------------------------------------------------*/
/* Release Grant to Access the Volume                                     */
/*------------------------------------------------------------------------*/
void ff_rel_grant(_SYNC_t sobj)
{
	gfxSemSignal( (gfxSem*)&sobj );
}
#endif /* _FS_REENTRANT */

#if _USE_LFN == 3	/* LFN with a working buffer on the heap */
/*------------------------------------------------------------------------*/
/* Allocate a memory block                                                */
/*------------------------------------------------------------------------*/
void *ff_memalloc(UINT size)
{
	return gfxAlloc( (size_t)size );
}

/*------------------------------------------------------------------------*/
/* Free a memory block                                                    */
/*------------------------------------------------------------------------*/
void ff_memfree(void *mblock)
{
	gfxFree(mblock);
}
#endif /* _USE_LFN == 3 */