/*---------------------------------------------------------------------------*
  Project:  TwlSDK - NandInitializer
  File:     main.c

  Copyright 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::            $
  $Rev:$
  $Author:$
 *---------------------------------------------------------------------------*/

#include <twl.h>
#include <nitro/snd.h>
#include "kami_font.h"
#include "process_format.h"
#include "process_topmenu.h"
#include "graphics.h"
#include "keypad.h"
#include "kami_pxi.h"
#include <twl/fatfs.h>
#include <nitro/card.h>
#include <twl/nam.h>

extern void HWInfoWriterInit( void );

typedef void*  (*Process)(void);

/*---------------------------------------------------------------------------*
    内部変数定義
 *---------------------------------------------------------------------------*/

static Process sProcess;

/*---------------------------------------------------------------------------*
    内部関数定義
 *---------------------------------------------------------------------------*/
static void VBlankIntr(void);
static void InitAllocation(void);

/*---------------------------------------------------------------------------*
  Name:         TwlMain

  Description:  main

  Arguments:    None

  Returns:      None
 *---------------------------------------------------------------------------*/
void 
TwlMain()
{
    OS_Init();
    OS_InitArena();
    PXI_Init();
    OS_InitLock();
    OS_InitArenaEx();
    OS_InitIrqTable();
    OS_SetIrqStackChecker();
    MI_Init();
    OS_InitVAlarm();
    OSi_InitVramExclusive();
    OS_InitThread();
    OS_InitReset();
    GX_Init();
    FX_Init();
    SND_Init();
    TP_Init();
    RTC_Init();

	InitAllocation();
	
    KamiPxiInit();   /* 独自PXI初期化 */

    // Vブランク割り込み設定
    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)GX_VBlankIntr(TRUE);

    /* initialize file-system */
	FS_Init(FS_DMA_NOT_USE);

	// SD起動などあらゆるマウント状態に対応する
	FATFS_UnmountDrive("F:");
	FATFS_UnmountDrive("G:");
	FATFS_MountDrive("F", FATFS_MEDIA_TYPE_NAND, 0);
	FATFS_MountDrive("G", FATFS_MEDIA_TYPE_SD, 0);

	// NAMライブラリ初期化
	NAM_Init( OS_AllocFromMain, OS_FreeToMain);

    // 表示関連初期化
    InitGraphics();
	kamiFontInit();

    /* always preload FS table for faster directory access. */
    {
        u32     need_size = FS_GetTableSize();
        void   *p_table = OS_Alloc(need_size);
        SDK_ASSERT(p_table != NULL);
        (void)FS_LoadTable(p_table, need_size);
    }

	// 初期シーケンス設定
	sProcess = TopmenuProcess0;

	kamiFontPrintfConsole( CONSOLE_ORANGE, "Thank you for using program.\n");
	kamiFontPrintfConsole( CONSOLE_ORANGE, "+---------------------------+\n");
	kamiFontPrintfConsole( CONSOLE_ORANGE, "l A Button    : Select Menu l\n");
	kamiFontPrintfConsole( CONSOLE_ORANGE, "l Up/Down Key : Change Menu l\n");
	kamiFontPrintfConsole( CONSOLE_ORANGE, "l L&R Button  : Auto Init * l\n");
	kamiFontPrintfConsole( CONSOLE_ORANGE, "+---------------------------+\n");
	kamiFontPrintfConsole( CONSOLE_ORANGE, "* Note that nand memory is deleted.\n");

    while (1)
    {
		kamiPadRead();

        // コマンドフラッシュ
        (void)SND_FlushCommand(SND_COMMAND_NOBLOCK);

		// Vブランク待ち
        OS_WaitVBlankIntr();

        // ＡＲＭ７コマンド応答受信
        while (SND_RecvCommandReply(SND_COMMAND_NOBLOCK) != NULL)
        {
        }

		// フォントスクリーンデータロード
		kamiFontLoadScreenData();

		sProcess = sProcess();
    }
}

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

  Description:  VBlank割り込み処理

  Arguments:    None.

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

/*---------------------------------------------------------------------------*
  Name:         InitAllocation

  Description:  ヒープの初期化.

  Arguments:    None.

  Returns:      None.
 *---------------------------------------------------------------------------*/
static void InitAllocation(void)
{
    void   *tmp;
    OSHeapHandle hh;

    /* アリーナの初期化 */
    tmp = OS_InitAlloc(OS_ARENA_MAIN, OS_GetMainArenaLo(), OS_GetMainArenaHi(), 1);
    OS_SetArenaLo(OS_ARENA_MAIN, tmp);
    hh = OS_CreateHeap(OS_ARENA_MAIN, OS_GetMainArenaLo(), OS_GetMainArenaHi());
    if (hh < 0)
        OS_Panic("ARM9: Fail to create heap...\n");
    hh = OS_SetCurrentHeap(OS_ARENA_MAIN, hh);
}