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/* PCSX2 - PS2 Emulator for PCs |
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* Copyright (C) 2002-2010 PCSX2 Dev Team |
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* |
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms |
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* of the GNU Lesser General Public License as published by the Free Software Found- |
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* ation, either version 3 of the License, or (at your option) any later version. |
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* |
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; |
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
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* PURPOSE. See the GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along with PCSX2. |
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* If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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|
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#include "PrecompiledHeader.h" |
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#include "Common.h" |
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#include "BiosTools.h" |
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|
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#include "wx/file.h" |
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|
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#include "AppConfig.h" |
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|
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#define DIRENTRY_SIZE 16 |
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|
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// -------------------------------------------------------------------------------------- |
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// romdir structure (packing required!) |
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// -------------------------------------------------------------------------------------- |
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// |
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#if defined(_MSC_VER) |
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# pragma pack(1) |
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#endif |
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|
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struct romdir |
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{ |
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char fileName[10]; |
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u16 extInfoSize; |
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u32 fileSize; |
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} __packed; // +22 |
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|
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#ifdef _MSC_VER |
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# pragma pack() |
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#endif |
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|
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u32 BiosVersion; // Used in Memory, Misc, CDVD |
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|
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// -------------------------------------------------------------------------------------- |
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// Exception::BiosLoadFailed (implementations) |
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// -------------------------------------------------------------------------------------- |
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Exception::BiosLoadFailed::BiosLoadFailed( const wxString& filename ) |
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{ |
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m_message_diag = L"BIOS has not been configured, or the configuration has been corrupted."; |
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m_message_user = _("The PS2 BIOS could not be loaded. The BIOS has not been configured, or the configuration has been corrupted. Please re-configure."); |
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|
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StreamName = filename; |
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} |
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|
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// Returns the version information of the bios currently loaded into memory. |
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static u32 GetBiosVersion() |
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{ |
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int i; |
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|
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for (i=0; i<512*1024; i++) |
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{ |
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if( strncmp( (char*)&psRu8(i), "RESET", 5 ) == 0 ) |
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break; /* found romdir */ |
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} |
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if (i == 512*1024) return -1; |
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|
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const romdir* rd = (romdir*)&psRu8(i); |
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uint fileOffset = 0; |
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|
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while(strlen(rd->fileName) > 0) |
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{ |
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if (strcmp(rd->fileName, "ROMVER") == 0) |
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{ |
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char vermaj[8]; |
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char vermin[8]; |
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u32 version; |
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|
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const s8 *ROMVER = &psRs8(fileOffset); |
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|
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strncpy(vermaj, (char *)(ROMVER+ 0), 2); vermaj[2] = 0; |
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strncpy(vermin, (char *)(ROMVER+ 2), 2); vermin[2] = 0; |
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version = strtol(vermaj, (char**)NULL, 0) << 8; |
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version|= strtol(vermin, (char**)NULL, 0); |
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|
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return version; |
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} |
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|
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if ((rd->fileSize % 0x10)==0) |
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fileOffset += rd->fileSize; |
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else |
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fileOffset += (rd->fileSize + 0x10) & 0xfffffff0; |
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|
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rd++; |
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} |
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|
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return -1; |
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} |
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|
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// Attempts to load a BIOS rom sub-component, by trying multiple combinations of base |
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// filename and extension. The bios specified in the user's configuration is used as |
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// the base. |
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// |
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// Parameters: |
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// ext - extension of the sub-component to load. Valid options are rom1, rom2, AND erom. |
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// |
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static void loadBiosRom( const wxChar *ext, u8 *dest, s64 maxSize ) |
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{ |
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wxString Bios1; |
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s64 filesize; |
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|
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// Try first a basic extension concatenation (normally results in something like name.bin.rom1) |
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const wxString Bios( g_Conf->FullpathToBios() ); |
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Bios1.Printf( L"%s.%s", Bios.c_str(), ext); |
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|
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if( (filesize=Path::GetFileSize( Bios1 ) ) <= 0 ) |
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{ |
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// Try the name properly extensioned next (name.rom1) |
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Bios1 = Path::ReplaceExtension( Bios, ext ); |
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if( (filesize=Path::GetFileSize( Bios1 ) ) <= 0 ) |
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{ |
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Console.Warning( L"Load Bios Warning: %s module not found, skipping... (this is not an error)", ext ); |
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return; |
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} |
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} |
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|
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// if we made it this far, we have a successful file found: |
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|
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wxFile fp( Bios1 ); |
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fp.Read( dest, min( maxSize, filesize ) ); |
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} |
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|
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// Loads the configured bios rom file into PS2 memory. PS2 memory must be allocated prior to |
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// this method being called. |
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// |
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// Remarks: |
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// This function does not fail if rom1, rom2, or erom files are missing, since none are |
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// explicitly required for most emulation tasks. |
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// |
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// Exceptions: |
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// FileNotFound - Thrown if the primary bios file (usually .bin) is not found. |
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// |
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void LoadBIOS() |
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{ |
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pxAssertDev( eeMem->ROM != NULL, "PS2 system memory has not been initialized yet." ); |
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|
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wxString Bios( g_Conf->FullpathToBios() ); |
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if( !g_Conf->BaseFilenames.Bios.IsOk() || g_Conf->BaseFilenames.Bios.IsDir() ) |
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throw Exception::BiosLoadFailed( Bios ); |
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|
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s64 filesize = Path::GetFileSize( Bios ); |
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if( filesize <= 0 ) |
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{ |
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throw Exception::BiosLoadFailed( Bios ) |
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.SetDiagMsg(L"Configured BIOS file does not exist.") |
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.SetUserMsg(_("The configured BIOS file does not exist. Please re-configure.")); |
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} |
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|
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wxFile fp( Bios ); |
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fp.Read( eeMem->ROM, min( (s64)Ps2MemSize::Rom, filesize ) ); |
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|
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BiosVersion = GetBiosVersion(); |
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if( BiosVersion == -1 ) |
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{ |
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throw Exception::BiosLoadFailed( Bios ) |
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.SetDiagMsg(L"Configured BIOS file is not a valid PS2 BIOS.") |
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.SetUserMsg(_("The configured BIOS file is not a valid PS2 BIOS. Please re-configure.")); |
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} |
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|
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Console.WriteLn("Bios Version %d.%d", BiosVersion >> 8, BiosVersion & 0xff); |
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|
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//injectIRX("host.irx"); //not fully tested; still buggy |
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|
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loadBiosRom( L"rom1", eeMem->ROM1, Ps2MemSize::Rom1 ); |
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loadBiosRom( L"rom2", eeMem->ROM2, Ps2MemSize::Rom2 ); |
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loadBiosRom( L"erom", eeMem->EROM, Ps2MemSize::ERom ); |
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} |
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|
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bool IsBIOS(const wxString& filename, wxString& description) |
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{ |
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uint fileOffset=0; |
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romdir rd; |
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|
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wxFileName Bios( g_Conf->Folders.Bios + filename ); |
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wxFile fp( Bios.GetFullPath() ); |
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|
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if( !fp.IsOpened() ) return FALSE; |
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|
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int biosFileSize = fp.Length(); |
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if( biosFileSize < 1024*4096) return FALSE; // valid bios must be at least 4mb. |
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|
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while( (fp.Tell() < 512*1024) && (fp.Read( &rd, DIRENTRY_SIZE ) == DIRENTRY_SIZE) ) |
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{ |
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if (strcmp(rd.fileName, "RESET") == 0) |
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break; // found romdir |
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} |
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|
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if ((strcmp(rd.fileName, "RESET") != 0) || (rd.fileSize == 0)) |
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return FALSE; //Unable to locate ROMDIR structure in file or a ioprpXXX.img |
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|
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bool found = false; |
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|
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while(strlen(rd.fileName) > 0) |
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{ |
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if (strcmp(rd.fileName, "ROMVER") == 0) // found romver |
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{ |
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char aROMVER[14+1]; // ascii version loaded from disk. |
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|
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uint filepos = fp.Tell(); |
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fp.Seek( fileOffset ); |
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if( fp.Read( &aROMVER, 14 ) == 0 ) break; |
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fp.Seek( filepos ); //go back |
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|
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aROMVER[14] = 0; |
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|
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const char zonefail[2] = { aROMVER[4], '\0' }; // the default "zone" (unknown code) |
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const char* zone = zonefail; |
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|
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switch(aROMVER[4]) |
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{ |
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case 'T': zone = "T10K"; break; |
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case 'X': zone = "Test"; break; |
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case 'J': zone = "Japan"; break; |
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case 'A': zone = "USA"; break; |
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case 'E': zone = "Europe"; break; |
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case 'H': zone = "HK"; break; |
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case 'P': zone = "Free"; break; |
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case 'C': zone = "China"; break; |
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} |
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|
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const wxString romver( fromUTF8(aROMVER) ); |
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|
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description.Printf( L"%-7s v%c%c.%c%c(%c%c/%c%c/%c%c%c%c) %s", |
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fromUTF8(zone).c_str(), |
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romver[0], romver[1], // ver major |
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romver[2], romver[3], // ver minor |
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romver[12], romver[13], // day |
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romver[10], romver[11], // month |
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romver[6], romver[7], romver[8], romver[9], // year! |
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(aROMVER[5]=='C') ? L"Console" : (aROMVER[5]=='D') ? L"Devel" : wxEmptyString |
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); |
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found = true; |
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} |
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|
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if ((rd.fileSize % 0x10)==0) |
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fileOffset += rd.fileSize; |
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else |
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fileOffset += (rd.fileSize + 0x10) & 0xfffffff0; |
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|
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if (fp.Read( &rd, DIRENTRY_SIZE ) != DIRENTRY_SIZE) break; |
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} |
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fileOffset -= ((rd.fileSize + 0x10) & 0xfffffff0) - rd.fileSize; |
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|
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if (found) |
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{ |
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if ( biosFileSize < (int)fileOffset) |
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{ |
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description += wxsFormat( L" %d%%", ((biosFileSize*100) / (int)fileOffset) ); |
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// we force users to have correct bioses, |
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// not that lame scph10000 of 513KB ;-) |
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} |
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return true; |
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} |
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|
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return false; //fail quietly |
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} |
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