/*---------------------------------------------------------------------------*
  Project:  TwlSDK - MB - demos - multiboot-PowerSave
  File:     main.c

  Copyright 2006-2009 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.

  $Date:: 2009-06-04#$
  $Rev: 10698 $
  $Author: okubata_ryoma $
 *---------------------------------------------------------------------------*/


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


#include "common.h"
#include "dispfunc.h"

/*
 * This is a sample parent for DS Download Play that explicitly changes the setting for the power-save mode.
 *
 * MB library samples use wireless features, so multiple development systems with the same communications environment (wired or wireless) are required.
 * 
 * The mb_child_NITRO.srl and mb_child_TWL.srl sample programs in the $TwlSDK/bin/ARM9-TS/Rom/ directory provide the same features as a commercial system that is a child device for DS Download Play. Load these binaries on other systems as with any sample program and then run them together.
 * 
 * 
 * 
 * 
 */


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

/*---------------------------------------------------------------------------*
  Name:         VBlankIntr

  Description:  V-Blank interrupt handler to update images.

  Arguments:    None.

  Returns:      None.
 *---------------------------------------------------------------------------*/
static void VBlankIntr(void)
{
    BgUpdate();
    OS_SetIrqCheckFlag(OS_IE_V_BLANK);
}

/*---------------------------------------------------------------------------*
  Name:         NitroMain

  Description:  Application's main entry.

  Arguments:    None.

  Returns:      None.
 *---------------------------------------------------------------------------*/
void NitroMain(void)
{
    /* OS initialization */
    OS_Init();
    OS_InitTick();
    OS_InitAlarm();
    FX_Init();

    /* GX initialization */
    GX_Init();
    GX_DispOff();
    GXS_DispOff();

    /* Memory allocation initialization */
    {
        OSHeapHandle hh;
        static const u32 MAIN_HEAP_SIZE = 0x80000;
        void   *heapStart;
        void   *nstart = OS_InitAlloc(OS_ARENA_MAIN,
                                      OS_GetMainArenaLo(), OS_GetMainArenaHi(), 16);
        OS_SetMainArenaLo(nstart);
        heapStart = OS_AllocFromMainArenaLo(MAIN_HEAP_SIZE, 32);
        hh = OS_CreateHeap(OS_ARENA_MAIN, heapStart, (void *)((u32)heapStart + MAIN_HEAP_SIZE));
        if (hh < 0)
        {
            OS_Panic("ARM9: Fail to create heap...\n");
        }
        (void)OS_SetCurrentHeap(OS_ARENA_MAIN, hh);
    }
    
    (void)OS_EnableIrq();
    (void)OS_EnableInterrupts();
    
    /* FS initialization */
    FS_Init(FS_DMA_NOT_USE);
    {
        u32     need_size = FS_GetTableSize();
        void   *p_table = OS_Alloc(need_size);
        SDK_ASSERT(p_table != NULL);
        (void)FS_LoadTable(p_table, need_size);
    }

    /* Initialize drawing setting */
    {
        GX_SetBankForLCDC(GX_VRAM_LCDC_ALL);
        MI_CpuClearFast((void *)HW_LCDC_VRAM, HW_LCDC_VRAM_SIZE);
        (void)GX_DisableBankForLCDC();
        MI_CpuFillFast((void *)HW_OAM, 192, HW_OAM_SIZE);
        MI_CpuClearFast((void *)HW_PLTT, HW_PLTT_SIZE);
        MI_CpuFillFast((void *)HW_DB_OAM, 192, HW_DB_OAM_SIZE);
        MI_CpuClearFast((void *)HW_DB_PLTT, HW_DB_PLTT_SIZE);
        BgInit();
    }

    /* V-Blank interrupt configuration */
    (void)OS_SetIrqFunction(OS_IE_V_BLANK, VBlankIntr);
    (void)OS_EnableIrqMask(OS_IE_V_BLANK);
    (void)OS_EnableIrqMask(OS_IE_FIFO_RECV);
//    (void)OS_EnableIrq();
//    (void)OS_EnableInterrupts();
    (void)GX_VBlankIntr(TRUE);

    /* Main loop */
    for (;;)
    {
        MenuMode();
        ParentMode();
    }

}