/*---------------------------------------------------------------------------*
  Project:  TwlSDK - WM - demos - wireless-all
  File:     wh_measure.c

  Copyright 2006-2008 Nintendo. All rights reserved.

  These coded instructions, statements, and computer programs contain
  proprietary information of Nintendo of America Inc. and/or Nintendo
  Company Ltd., and are protected by Federal copyright law. They may
  not be disclosed to third parties or copied or duplicated in any form,
  in whole or in part, without the prior written consent of Nintendo.

  $Date:: 2008-09-18#$
  $Rev: 8573 $
  $Author: okubata_ryoma $
 *---------------------------------------------------------------------------*/

#ifdef SDK_TWL
#include <twl.h>
#else
#include <nitro.h>
#endif

#include "common.h"
#include "wh.h"


/*****************************************************************************/
/* Functions */

/*---------------------------------------------------------------------------*
  Name:         MeasureChannel

  Description:  Measures the wireless use rates for each useable channel.
                This can be used when the WH state is WH_SYSSTATE_IDLE.

  Arguments:    None.

  Returns:      The channel with the lowest rate of wireless use.
 *---------------------------------------------------------------------------*/
u16 MeasureChannel(void)
{
    SDK_ASSERT(WH_GetSystemState() == WH_SYSSTATE_IDLE);
    /* Channel measurement begins */
    (void)WH_StartMeasureChannel();
    WaitWHState(WH_SYSSTATE_MEASURECHANNEL);
    /* All channels measurement completed */
    return WH_GetMeasureChannel();
}