mirror of
https://github.com/rvtr/twl_wrapsdk.git
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40d3b6e673
git-svn-id: file:///Users/lillianskinner/Downloads/platinum/twl/twl_wrapsdk/trunk@40 4ee2a332-4b2b-5046-8439-1ba90f034370
304 lines
9.1 KiB
C
304 lines
9.1 KiB
C
/*---------------------------------------------------------------------------*
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Project: NitroSDK - OS
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File: os_emulator.c
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Copyright 2003-2006 Nintendo. All rights reserved.
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These coded instructions, statements, and computer programs contain
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proprietary information of Nintendo of America Inc. and/or Nintendo
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Company Ltd., and are protected by Federal copyright law. They may
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not be disclosed to third parties or copied or duplicated in any form,
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in whole or in part, without the prior written consent of Nintendo.
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$Log: os_emulator.c,v $
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Revision 1.22 2006/04/25 23:58:19 okubata_ryoma
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返り値がリファレンスの記述と異なる値を返すという不具合修正
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Revision 1.21 2006/01/18 02:11:30 kitase_hirotake
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do-indent
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Revision 1.20 2005/02/28 05:26:28 yosizaki
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do-indent.
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Revision 1.19 2005/02/18 08:51:35 yasu
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著作年度変更
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Revision 1.18 2005/02/18 06:20:18 yasu
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Signed/Unsigned 変換警告抑制
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Revision 1.17 2004/09/22 00:25:38 yada
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OS_GetConsole() Type returns constant value
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if SDK_SMALL_BUILD and SDK_FINALROM are defined
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Revision 1.16 2004/08/17 04:10:32 yada
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detect debugger correctly
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Revision 1.15 2004/08/16 08:15:54 yada
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HW_CHECK_DEBUGGER_BUF definition is moved to mmap_shared.h header
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Revision 1.14 2004/08/11 13:18:58 yada
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change method to detect platform
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Revision 1.13 2004/07/23 01:03:03 yada
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OS_UnLockCartridge -> OS_UnlockCartridge
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Revision 1.12 2004/07/22 08:22:41 yada
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fix for changing some lockID's type u32->u16
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Revision 1.11 2004/06/08 10:43:26 yada
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add information about main memory size
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Revision 1.10 2004/06/08 04:34:45 yada
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only fix comment
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Revision 1.9 2004/06/07 04:29:39 yada
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add OS_GetConsoleType()
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Revision 1.8 2004/02/13 08:39:30 yasu
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OS_IsRunOnEmulator returns by FALSE if ARM7
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Revision 1.7 2004/02/13 02:26:56 yada
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ARM9とAMR7 でインクルードファイル場合わけ
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Revision 1.6 2004/02/12 11:08:30 yada
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ARM9/ARM7 振り分け作業
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Revision 1.5 2004/02/06 09:29:43 yasu
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OS_IsRunEmulator の認識処理を一度だけにした．
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Revision 1.4 2004/02/05 07:09:02 yasu
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change SDK prefix iris -> nitro
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Revision 1.3 2003/12/25 07:31:26 yada
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型ルール統一による変更
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Revision 1.2 2003/11/30 04:20:26 yasu
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OS_EnableInterrupt/DisableInterrupt の戻り値の型の変更
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Revision 1.1 2003/11/29 01:25:46 yada
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ファイル名称変更
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Revision 1.1 2003/11/25 11:17:37 yasu
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エミュレータの自動判別追加
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$NoKeywords: $
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*---------------------------------------------------------------------------*/
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#include <twl.h>
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//---- current processor lock flag
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#ifdef SDK_ARM9
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#define OSi_CURPROC_LOCKED_FLAG OS_MAINP_LOCKED_FLAG
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#else
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#define OSi_CURPROC_LOCKED_FLAG OS_SUBP_LOCKED_FLAG
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#endif
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static u32 OSi_ConsoleTypeCache = OSi_CONSOLE_NOT_DETECT;
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u32 OSi_GetDeviceType(void);
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BOOL OSi_IsRunOnDebugger(void);
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//================================================================================
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/*---------------------------------------------------------------------------*
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Name: OS_IsRunOnEmulator
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Description: Detect emulator
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Arguments: None
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Returns: non 0 if emulator
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*---------------------------------------------------------------------------*/
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BOOL OS_IsRunOnEmulator(void)
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{
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#ifdef SDK_ARM9
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#ifndef SDK_FINALROM
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static int onEmu = -1; // Not so good coding style...
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u32 val;
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OSIntrMode intr;
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if (onEmu == -1)
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{
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intr = OS_DisableInterrupts();
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{
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// PING magic number to ensata
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(*(REGType32v *)REG_CLIPMTX_RESULT_0_ADDR) = 0x2468ace0;
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// PONG magic number from ensata
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val = *(vu16 *)REG_VCOUNT_ADDR & 0x1ffU;
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if (val == 270)
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{
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// Recognized as ensata, send back ACK signal to ensata
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*(vu32 *)0x4fff010 = 0x13579bdf; // ACK Signal 1
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*(vu32 *)0x4fff010 = 0xfdb97531; // ACK Signal 2
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onEmu = TRUE;
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}
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else
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{
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// Unidentified ...
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onEmu = FALSE;
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}
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}
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(void)OS_RestoreInterrupts(intr);
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}
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return (BOOL)onEmu;
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#else
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return FALSE;
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#endif
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#else // SDK_ARM7
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return FALSE; // always FALSE if ARM7
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#endif
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}
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/*---------------------------------------------------------------------------*
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Name: OS_GetConsoleType
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Description: Detect console type
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Arguments: None
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Returns:
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*---------------------------------------------------------------------------*/
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u32 OS_GetConsoleType(void)
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{
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#if defined( SDK_FINALROM ) || defined( SDK_SMALL_BUILD )
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OSi_ConsoleTypeCache = OS_CONSOLE_NITRO | OS_CONSOLE_DEV_CARD | OS_CONSOLE_SIZE_4MB;
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#else // if defined( SDK_FINALROM ) && defined( SDK_SMALL_BUILD )
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//---- skip if detect already
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if (OSi_ConsoleTypeCache == OSi_CONSOLE_NOT_DETECT)
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{
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//---- whether device is cartridge?
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u32 type = OSi_GetDeviceType();
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//---- running on software emulator Ensata?
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if (OS_IsRunOnEmulator())
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{
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type |= OS_CONSOLE_ENSATA;
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}
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//---- running on debugger?
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else if (OSi_IsRunOnDebugger())
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{
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type |= OS_CONSOLE_ISDEBUGGER;
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}
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//---- is card device cartridge? so that running on IS-Emulator
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else if (type & OS_CONSOLE_DEV_CARTRIDGE)
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{
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type |= OS_CONSOLE_ISEMULATOR;
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}
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//---- else, maybe retail NITRO.
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else
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{
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type |= OS_CONSOLE_NITRO;
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}
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//---- main memory size (maybe ARM7 has already detected)
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type |= *(u16 *)HW_MMEMCHECKER_SUB;
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OSi_ConsoleTypeCache = type;
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}
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#endif // if defined( SDK_FINALROM ) && defined( SDK_SMALL_BUILD )
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return OSi_ConsoleTypeCache;
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}
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/*---------------------------------------------------------------------------*
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Name: OSi_GetDeviceType
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Description: get card device type
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(subroutine of OS_GetConsoleType)
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Arguments: None
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Returns: decided by bus card data loaded
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OS_CONSOLE_DEV_CARTRIDGE : via cartridge bus
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OS_CONSOLE_DEV_CARD : via card bus
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*---------------------------------------------------------------------------*/
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u32 OSi_GetDeviceType(void)
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{
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u32 result = OS_CONSOLE_DEV_CARD;
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#if 0
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BOOL checked = FALSE;
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u16 lockId = (u16)OS_GetLockID(); // treat as success absolutely
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do
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{
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s32 ret = OS_LOCK_ERROR;
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OSIntrMode enabled = OS_DisableInterrupts();
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//---- cartridge already locked or lock now success
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if ((OS_ReadOwnerOfLockCartridge() & OSi_CURPROC_LOCKED_FLAG)
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|| ((ret = (s32)OS_TryLockCartridge(lockId)) == OS_LOCK_SUCCESS))
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{
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//---- check cartridge header
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result =
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(u32)(((((vu32 *)HW_CTRDG_ROM)[0] == (u32)'TNIN') &&
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(((vu32 *)HW_CTRDG_ROM)[1] == (u32)'ODNE')) ?
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OS_CONSOLE_DEV_CARTRIDGE : OS_CONSOLE_DEV_CARD);
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//---- unlock cartridge
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if (ret == OS_LOCK_SUCCESS)
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{
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(void)OS_UnlockCartridge(lockId);
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checked = TRUE;
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}
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}
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(void)OS_RestoreInterrupts(enabled);
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}
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while (!checked);
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#endif
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return result;
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}
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/*---------------------------------------------------------------------------*
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Name: OSi_IsRunOnDebugger
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Description: Detect Debugger
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(subroutine of OS_GetConsoleType)
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Arguments: None
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Returns: TRUE : debugger
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FALSE : not debugger
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*---------------------------------------------------------------------------*/
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BOOL OSi_IsRunOnDebugger(void)
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{
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u16 *checkAddress = (u16 *)((*(u16 *)HW_CHECK_DEBUGGER_SW ==
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0) ? HW_CHECK_DEBUGGER_BUF1 : HW_CHECK_DEBUGGER_BUF2);
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return (*checkAddress == 1) ? TRUE : FALSE;
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}
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/*---------------------------------------------------------------------------*
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Name: OSi_IsRunOnDebuggerTWL
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Description: Detect TWL-Debugger
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(subroutine of OS_GetConsoleType)
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Arguments: None
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Returns: TRUE : debugger
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FALSE : not debugger
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*---------------------------------------------------------------------------*/
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BOOL OSi_IsRunOnDebuggerTWL(void)
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{
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#ifdef SDK_ARM9
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BOOL retval = TRUE;
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#else // SDK_ARM7
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// デバッガの対応により、JTAG-DEBUG通信割り込みによる検出の可能性もある（NANDファームにてJTAGイネーブル）。
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// DEBUGボタンによる検出などはセキュリティ上の問題がある（デバッガへのなりすましが容易）。
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OSChipType type = (OSChipType)(reg_CFG_BONDING & REG_CFG_BONDING_CHIP_TYPE_MASK);
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BOOL retval = FALSE;
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// if ( type == OS_CHIPTYPE_DEBUGGER || type == OS_CHIPTYPE_EVALUATE )
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{
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retval = TRUE;
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}
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#endif // SDK_ARM7
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return retval;
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}
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