void emAvFileModel::PlaySolely()
{
if (GetFileState()!=FS_LOADED) return;
while (ActiveList->Var && ActiveList->Var!=this) ActiveList->Var->Stop();
while (ALNext) ALNext->Stop();
Play();
}
void emAvFileModel::StreamStateChanged(StreamStateType streamState)
{
emString str;
if (streamState==STREAM_ERRORED && GetFileState()==FS_LOADED) {
str=GetStreamErrorText();
if (ErrorText!=str) {
ErrorText=str;
Signal(InfoSignal);
}
if (PlayState!=PS_STOPPED) {
RemoveFromActiveList();
PlayState=PS_STOPPED;
Signal(PlayStateSignal);
}
if (PlayPos!=0) {
PlayPos=0;
Signal(PlayPosSignal);
}
if (!Image.IsEmpty()) {
Image.Empty();
Signal(ImageSignal);
}
SaveFileState();
}
}
/**
Check if it's a valid FFS file header.
@param ErasePolarity Erase polarity attribute of the firmware volume
@param FfsHeader Points to the FFS file header to be checked
@param FileState FFS file state to be returned
@retval TRUE Valid FFS file header
@retval FALSE Invalid FFS file header
**/
BOOLEAN
IsValidFfsHeader (
IN UINT8 ErasePolarity,
IN EFI_FFS_FILE_HEADER *FfsHeader,
OUT EFI_FFS_FILE_STATE *FileState
)
{
*FileState = GetFileState (ErasePolarity, FfsHeader);
switch (*FileState) {
case EFI_FILE_HEADER_VALID:
case EFI_FILE_DATA_VALID:
case EFI_FILE_MARKED_FOR_UPDATE:
case EFI_FILE_DELETED:
//
// Here we need to verify header checksum
//
return VerifyHeaderChecksum (FfsHeader);
case EFI_FILE_HEADER_CONSTRUCTION:
case EFI_FILE_HEADER_INVALID:
default:
return FALSE;
}
}
static WatchedFile* NewWatchedFile(const WCHAR* filePath, const std::function<void()>& onFileChangedCb) {
bool isManualCheck = PathIsNetworkPath(filePath);
AutoFreeW dirPath(path::GetDir(filePath));
WatchedDir* wd = nullptr;
bool newDir = false;
if (!isManualCheck) {
wd = FindExistingWatchedDir(dirPath);
if (!wd) {
wd = NewWatchedDir(dirPath);
if (!wd)
return nullptr;
newDir = true;
}
}
WatchedFile* wf = AllocStruct<WatchedFile>();
wf->filePath = str::Dup(filePath);
wf->onFileChangedCb = onFileChangedCb;
wf->watchedDir = wd;
wf->isManualCheck = isManualCheck;
ListInsert(&g_watchedFiles, wf);
if (wf->isManualCheck) {
GetFileState(filePath, &wf->fileState);
AwakeWatcherThread();
} else {
if (newDir)
StartMonitoringDirForChanges(wf->watchedDir);
}
return wf;
}
/**
Check if it's a valid FFS file.
Here we are sure that it has a valid FFS file header since we must call IsValidFfsHeader() first.
@param ErasePolarity Erase polarity attribute of the firmware volume
@param FfsHeader Points to the FFS file to be checked
@retval TRUE Valid FFS file
@retval FALSE Invalid FFS file
**/
BOOLEAN
IsValidFfsFile (
IN UINT8 ErasePolarity,
IN EFI_FFS_FILE_HEADER *FfsHeader
)
{
EFI_FFS_FILE_STATE FileState;
UINT8 DataCheckSum;
FileState = GetFileState (ErasePolarity, FfsHeader);
switch (FileState) {
case EFI_FILE_DELETED:
case EFI_FILE_DATA_VALID:
case EFI_FILE_MARKED_FOR_UPDATE:
DataCheckSum = FFS_FIXED_CHECKSUM;
if ((FfsHeader->Attributes & FFS_ATTRIB_CHECKSUM) == FFS_ATTRIB_CHECKSUM) {
if (IS_FFS_FILE2 (FfsHeader)) {
DataCheckSum = CalculateCheckSum8 ((CONST UINT8 *) FfsHeader + sizeof (EFI_FFS_FILE_HEADER2), FFS_FILE2_SIZE (FfsHeader) - sizeof(EFI_FFS_FILE_HEADER2));
} else {
DataCheckSum = CalculateCheckSum8 ((CONST UINT8 *) FfsHeader + sizeof (EFI_FFS_FILE_HEADER), FFS_FILE_SIZE (FfsHeader) - sizeof(EFI_FFS_FILE_HEADER));
}
}
if (FfsHeader->IntegrityCheck.Checksum.File == DataCheckSum) {
return TRUE;
}
default:
return FALSE;
}
}
static WatchedFile *NewWatchedFile(const WCHAR *filePath, FileChangeObserver *observer)
{
bool isManualCheck = PathIsNetworkPath(filePath);
ScopedMem<WCHAR> dirPath(path::GetDir(filePath));
WatchedDir *wd = nullptr;
bool newDir = false;
if (!isManualCheck) {
wd = FindExistingWatchedDir(dirPath);
if (!wd) {
wd = NewWatchedDir(dirPath);
if (!wd)
return nullptr;
newDir = true;
}
}
WatchedFile *wf = AllocStruct<WatchedFile>();
wf->filePath = str::Dup(filePath);
wf->observer = observer;
wf->watchedDir = wd;
wf->isManualCheck = isManualCheck;
ListInsert(&g_watchedFiles, wf);
if (wf->isManualCheck) {
GetFileState(filePath, &wf->fileState);
AwakeWatcherThread();
} else {
if (newDir)
StartMonitoringDirForChanges(wf->watchedDir);
}
return wf;
}
void emAvFileModel::SetAudioMute(bool audioMute)
{
if (GetFileState()!=FS_LOADED) return;
if (AudioMute!=audioMute) {
AudioMute=audioMute;
Signal(AdjustmentSignal);
SetProperty("audio_mute",AudioMute?"on":"off");
}
}
static bool FileStateChanged(const WCHAR* filePath, FileState* fs) {
FileState fsTmp;
GetFileState(filePath, &fsTmp);
if (FileStateEq(fs, &fsTmp))
return false;
memcpy(fs, &fsTmp, sizeof(*fs));
return true;
}
void emAvFileModel::SetAudioVolume(int audioVolume)
{
if (GetFileState()!=FS_LOADED) return;
if (audioVolume<0) audioVolume=0;
if (audioVolume>100) audioVolume=100;
if (AudioVolume!=audioVolume) {
AudioVolume=audioVolume;
Signal(AdjustmentSignal);
SetProperty("audio_volume",emString::Format("%d",AudioVolume));
}
SaveAudioVolume();
}
void emAvFileModel::SetPlayPos(int playPos)
{
if (GetFileState()!=FS_LOADED) return;
if (playPos<0) playPos=0;
if (playPos>PlayLength) playPos=PlayLength;
if (PlayPos!=playPos) {
if (PlayState==PS_STOPPED) Pause();
PlayPos=playPos;
Signal(PlayPosSignal);
SetProperty("pos",emString::Format("%d",PlayPos));
}
SaveFileState();
}
void emAvFileModel::SetPlayState(PlayStateType playState)
{
if (GetFileState()!=FS_LOADED) return;
if (PlayState==playState) return;
PlayState=playState;
Signal(PlayStateSignal);
if (PlayState==PS_STOPPED) {
RemoveFromActiveList();
CloseStream();
PlayPos=0;
Signal(PlayPosSignal);
Image.Empty();
Signal(ImageSignal);
}
else {
AddToActiveList();
if (GetStreamState()!=STREAM_OPENING && GetStreamState()!=STREAM_OPENED) {
if (!WarningText.IsEmpty() || !ErrorText.IsEmpty()) {
WarningText.Empty();
ErrorText.Empty();
Signal(InfoSignal);
}
OpenStream("auto","emAv",GetFilePath());
SetProperty("audio_volume",emString::Format("%d",AudioVolume));
SetProperty("audio_mute",AudioMute?"on":"off");
if (AudioVisu>=0 && AudioVisu<AudioVisus.GetCount()) {
SetProperty("audio_visu",AudioVisus[AudioVisu].Get());
}
SetProperty("pos",emString::Format("%d",PlayPos));
#if 0 // ??? This did not function.
if (AudioChannel>=0 && AudioChannel<AudioChannels.GetCount()) {
SetProperty("audio_channel",AudioChannels[AudioChannel].Get());
}
if (SpuChannel>=0 && SpuChannel<SpuChannels.GetCount()) {
SetProperty("spu_channel",SpuChannels[SpuChannel].Get());
}
#endif
}
SetProperty(
"state",
PlayState==PS_PAUSED ? "paused" :
PlayState==PS_SLOW ? "slow" :
PlayState==PS_FAST ? "fast" :
"normal"
);
}
SaveFileState();
}
void emAvFileModel::SetSpuChannel(int spuChannel)
{
int n;
if (GetFileState()!=FS_LOADED) return;
n=SpuChannels.GetCount();
if (n>0) {
if (spuChannel<0) spuChannel=0;
if (spuChannel>=n) spuChannel=n-1;
if (SpuChannel!=spuChannel) {
SpuChannel=spuChannel;
Signal(AdjustmentSignal);
SetProperty("spu_channel",SpuChannels[spuChannel].Get());
}
}
SaveFileState();
}
void emAvFileModel::SetAudioChannel(int audioChannel)
{
int n;
if (GetFileState()!=FS_LOADED) return;
n=AudioChannels.GetCount();
if (n>0) {
if (audioChannel<0) audioChannel=0;
if (audioChannel>=n) audioChannel=n-1;
if (AudioChannel!=audioChannel) {
AudioChannel=audioChannel;
Signal(AdjustmentSignal);
SetProperty("audio_channel",AudioChannels[audioChannel].Get());
}
}
SaveFileState();
}
void emAvFileModel::SetAudioVisu(int audioVisu)
{
int n;
if (GetFileState()!=FS_LOADED) return;
n=AudioVisus.GetCount();
if (n>0) {
if (audioVisu<0) audioVisu=0;
if (audioVisu>=n) audioVisu=n-1;
if (AudioVisu!=audioVisu) {
AudioVisu=audioVisu;
Signal(AdjustmentSignal);
SetProperty("audio_visu",AudioVisus[audioVisu].Get());
}
}
SaveAudioVisu();
}
/**
Check if an FV is consistent and allocate cache for it.
@param FvDevice A pointer to the FvDevice to be checked.
@retval EFI_OUT_OF_RESOURCES No enough buffer could be allocated.
@retval EFI_SUCCESS FV is consistent and cache is allocated.
@retval EFI_VOLUME_CORRUPTED File system is corrupted.
**/
EFI_STATUS
FvCheck (
IN OUT FV_DEVICE *FvDevice
)
{
EFI_STATUS Status;
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb;
EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;
EFI_FIRMWARE_VOLUME_EXT_HEADER *FwVolExtHeader;
EFI_FVB_ATTRIBUTES_2 FvbAttributes;
EFI_FV_BLOCK_MAP_ENTRY *BlockMap;
FFS_FILE_LIST_ENTRY *FfsFileEntry;
EFI_FFS_FILE_HEADER *FfsHeader;
UINT8 *CacheLocation;
UINTN LbaOffset;
UINTN HeaderSize;
UINTN Index;
EFI_LBA LbaIndex;
UINTN Size;
EFI_FFS_FILE_STATE FileState;
UINT8 *TopFvAddress;
UINTN TestLength;
EFI_PHYSICAL_ADDRESS PhysicalAddress;
BOOLEAN FileCached;
UINTN WholeFileSize;
EFI_FFS_FILE_HEADER *CacheFfsHeader;
FileCached = FALSE;
CacheFfsHeader = NULL;
Fvb = FvDevice->Fvb;
FwVolHeader = FvDevice->FwVolHeader;
Status = Fvb->GetAttributes (Fvb, &FvbAttributes);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Size is the size of the FV minus the head. We have already allocated
// the header to check to make sure the volume is valid
//
Size = (UINTN)(FwVolHeader->FvLength - FwVolHeader->HeaderLength);
if ((FvbAttributes & EFI_FVB2_MEMORY_MAPPED) != 0) {
FvDevice->IsMemoryMapped = TRUE;
Status = Fvb->GetPhysicalAddress (Fvb, &PhysicalAddress);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Don't cache memory mapped FV really.
//
FvDevice->CachedFv = (UINT8 *) (UINTN) (PhysicalAddress + FwVolHeader->HeaderLength);
} else {
FvDevice->IsMemoryMapped = FALSE;
FvDevice->CachedFv = AllocatePool (Size);
if (FvDevice->CachedFv == NULL) {
return EFI_OUT_OF_RESOURCES;
}
}
//
// Remember a pointer to the end fo the CachedFv
//
FvDevice->EndOfCachedFv = FvDevice->CachedFv + Size;
if (!FvDevice->IsMemoryMapped) {
//
// Copy FV minus header into memory using the block map we have all ready
// read into memory.
//
BlockMap = FwVolHeader->BlockMap;
CacheLocation = FvDevice->CachedFv;
LbaIndex = 0;
LbaOffset = 0;
HeaderSize = FwVolHeader->HeaderLength;
while ((BlockMap->NumBlocks != 0) || (BlockMap->Length != 0)) {
Index = 0;
Size = BlockMap->Length;
if (HeaderSize > 0) {
//
// Skip header size
//
for (; Index < BlockMap->NumBlocks && HeaderSize >= BlockMap->Length; Index ++) {
HeaderSize -= BlockMap->Length;
LbaIndex ++;
}
//
// Check whether FvHeader is crossing the multi block range.
//
if (Index >= BlockMap->NumBlocks) {
BlockMap++;
continue;
} else if (HeaderSize > 0) {
LbaOffset = HeaderSize;
Size = BlockMap->Length - HeaderSize;
HeaderSize = 0;
}
}
//
// read the FV data
//
for (; Index < BlockMap->NumBlocks; Index ++) {
Status = Fvb->Read (Fvb,
LbaIndex,
LbaOffset,
&Size,
CacheLocation
);
//
// Not check EFI_BAD_BUFFER_SIZE, for Size = BlockMap->Length
//
if (EFI_ERROR (Status)) {
goto Done;
}
LbaIndex++;
CacheLocation += Size;
//
// After we skip Fv Header always read from start of block
//
LbaOffset = 0;
Size = BlockMap->Length;
}
BlockMap++;
}
}
//
// Scan to check the free space & File list
//
if ((FvbAttributes & EFI_FVB2_ERASE_POLARITY) != 0) {
FvDevice->ErasePolarity = 1;
} else {
FvDevice->ErasePolarity = 0;
}
//
// go through the whole FV cache, check the consistence of the FV.
// Make a linked list of all the Ffs file headers
//
Status = EFI_SUCCESS;
InitializeListHead (&FvDevice->FfsFileListHeader);
//
// Build FFS list
//
if (FwVolHeader->ExtHeaderOffset != 0) {
//
// Searching for files starts on an 8 byte aligned boundary after the end of the Extended Header if it exists.
//
FwVolExtHeader = (EFI_FIRMWARE_VOLUME_EXT_HEADER *) (FvDevice->CachedFv + (FwVolHeader->ExtHeaderOffset - FwVolHeader->HeaderLength));
FfsHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) FwVolExtHeader + FwVolExtHeader->ExtHeaderSize);
FfsHeader = (EFI_FFS_FILE_HEADER *) ALIGN_POINTER (FfsHeader, 8);
} else {
FfsHeader = (EFI_FFS_FILE_HEADER *) (FvDevice->CachedFv);
}
TopFvAddress = FvDevice->EndOfCachedFv;
while (((UINTN) FfsHeader >= (UINTN) FvDevice->CachedFv) && ((UINTN) FfsHeader <= (UINTN) ((UINTN) TopFvAddress - sizeof (EFI_FFS_FILE_HEADER)))) {
if (FileCached) {
CoreFreePool (CacheFfsHeader);
FileCached = FALSE;
}
TestLength = TopFvAddress - ((UINT8 *) FfsHeader);
if (TestLength > sizeof (EFI_FFS_FILE_HEADER)) {
TestLength = sizeof (EFI_FFS_FILE_HEADER);
}
if (IsBufferErased (FvDevice->ErasePolarity, FfsHeader, TestLength)) {
//
// We have found the free space so we are done!
//
goto Done;
}
if (!IsValidFfsHeader (FvDevice->ErasePolarity, FfsHeader, &FileState)) {
if ((FileState == EFI_FILE_HEADER_INVALID) ||
(FileState == EFI_FILE_HEADER_CONSTRUCTION)) {
if (IS_FFS_FILE2 (FfsHeader)) {
if (!FvDevice->IsFfs3Fv) {
DEBUG ((EFI_D_ERROR, "Found a FFS3 formatted file: %g in a non-FFS3 formatted FV.\n", &FfsHeader->Name));
}
FfsHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) FfsHeader + sizeof (EFI_FFS_FILE_HEADER2));
} else {
FfsHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) FfsHeader + sizeof (EFI_FFS_FILE_HEADER));
}
continue;
} else {
//
// File system is corrputed
//
Status = EFI_VOLUME_CORRUPTED;
goto Done;
}
}
CacheFfsHeader = FfsHeader;
if ((CacheFfsHeader->Attributes & FFS_ATTRIB_CHECKSUM) == FFS_ATTRIB_CHECKSUM) {
if (FvDevice->IsMemoryMapped) {
//
// Memory mapped FV has not been cached.
// Here is to cache FFS file to memory buffer for following checksum calculating.
// And then, the cached file buffer can be also used for FvReadFile.
//
WholeFileSize = IS_FFS_FILE2 (CacheFfsHeader) ? FFS_FILE2_SIZE (CacheFfsHeader): FFS_FILE_SIZE (CacheFfsHeader);
CacheFfsHeader = AllocateCopyPool (WholeFileSize, CacheFfsHeader);
if (CacheFfsHeader == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Done;
}
FileCached = TRUE;
}
}
if (!IsValidFfsFile (FvDevice->ErasePolarity, CacheFfsHeader)) {
//
// File system is corrupted
//
Status = EFI_VOLUME_CORRUPTED;
goto Done;
}
if (IS_FFS_FILE2 (CacheFfsHeader)) {
ASSERT (FFS_FILE2_SIZE (CacheFfsHeader) > 0x00FFFFFF);
if (!FvDevice->IsFfs3Fv) {
DEBUG ((EFI_D_ERROR, "Found a FFS3 formatted file: %g in a non-FFS3 formatted FV.\n", &CacheFfsHeader->Name));
FfsHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) FfsHeader + FFS_FILE2_SIZE (CacheFfsHeader));
//
// Adjust pointer to the next 8-byte aligned boundry.
//
FfsHeader = (EFI_FFS_FILE_HEADER *) (((UINTN) FfsHeader + 7) & ~0x07);
continue;
}
}
FileState = GetFileState (FvDevice->ErasePolarity, CacheFfsHeader);
//
// check for non-deleted file
//
if (FileState != EFI_FILE_DELETED) {
//
// Create a FFS list entry for each non-deleted file
//
FfsFileEntry = AllocateZeroPool (sizeof (FFS_FILE_LIST_ENTRY));
if (FfsFileEntry == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Done;
}
FfsFileEntry->FfsHeader = CacheFfsHeader;
FfsFileEntry->FileCached = FileCached;
FileCached = FALSE;
InsertTailList (&FvDevice->FfsFileListHeader, &FfsFileEntry->Link);
}
if (IS_FFS_FILE2 (CacheFfsHeader)) {
FfsHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) FfsHeader + FFS_FILE2_SIZE (CacheFfsHeader));
} else {
FfsHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) FfsHeader + FFS_FILE_SIZE (CacheFfsHeader));
}
//
// Adjust pointer to the next 8-byte aligned boundry.
//
FfsHeader = (EFI_FFS_FILE_HEADER *)(((UINTN)FfsHeader + 7) & ~0x07);
}
Done:
if (EFI_ERROR (Status)) {
if (FileCached) {
CoreFreePool (CacheFfsHeader);
FileCached = FALSE;
}
FreeFvDeviceResource (FvDevice);
}
return Status;
}
EFI_STATUS
GetFfsFile (
IN EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader,
IN EFI_FV_FILETYPE FileType,
OUT EFI_FFS_FILE_HEADER **FileHeader
)
{
UINT64 FvLength;
UINTN FileOffset;
EFI_FFS_FILE_HEADER *FfsFileHeader;
UINT8 ErasePolarity;
UINT8 FileState;
UINT32 FileLength;
UINT32 FileOccupiedSize;
ASSERT (FwVolHeader->Signature == EFI_FVH_SIGNATURE);
FvLength = FwVolHeader->FvLength;
FfsFileHeader = (EFI_FFS_FILE_HEADER *)((UINT8 *)FwVolHeader + FwVolHeader->HeaderLength);
FileOffset = FwVolHeader->HeaderLength;
if (FwVolHeader->Attributes & EFI_FVB2_ERASE_POLARITY) {
ErasePolarity = 1;
} else {
ErasePolarity = 0;
}
while (FileOffset < (FvLength - sizeof (EFI_FFS_FILE_HEADER))) {
// Get FileState which is the highest bit of the State
FileState = GetFileState (ErasePolarity, FfsFileHeader);
switch (FileState) {
case EFI_FILE_HEADER_INVALID:
FileOffset += sizeof(EFI_FFS_FILE_HEADER);
FfsFileHeader = (EFI_FFS_FILE_HEADER *)((UINT8 *)FfsFileHeader + sizeof(EFI_FFS_FILE_HEADER));
break;
case EFI_FILE_DATA_VALID:
case EFI_FILE_MARKED_FOR_UPDATE:
if (CalculateHeaderChecksum (FfsFileHeader) != 0) {
ASSERT (FALSE);
return EFI_NOT_FOUND;
}
if (FfsFileHeader->Type == FileType) {
*FileHeader = FfsFileHeader;
return EFI_SUCCESS;
}
FileLength = *(UINT32 *)(FfsFileHeader->Size) & 0x00FFFFFF;
FileOccupiedSize = GET_OCCUPIED_SIZE(FileLength, 8);
FileOffset += FileOccupiedSize;
FfsFileHeader = (EFI_FFS_FILE_HEADER *)((UINT8 *)FfsFileHeader + FileOccupiedSize);
break;
case EFI_FILE_DELETED:
FileLength = *(UINT32 *)(FfsFileHeader->Size) & 0x00FFFFFF;
FileOccupiedSize = GET_OCCUPIED_SIZE(FileLength, 8);
FileOffset += FileOccupiedSize;
FfsFileHeader = (EFI_FFS_FILE_HEADER *)((UINT8 *)FfsFileHeader + FileOccupiedSize);
break;
default:
return EFI_NOT_FOUND;
}
}
return EFI_NOT_FOUND;
}
/**
Check if an FV is consistent and allocate cache for it.
@param FvDevice A pointer to the FvDevice to be checked.
@retval EFI_OUT_OF_RESOURCES No enough buffer could be allocated.
@retval EFI_VOLUME_CORRUPTED File system is corrupted.
@retval EFI_SUCCESS FV is consistent and cache is allocated.
**/
EFI_STATUS
FvCheck (
IN FV_DEVICE *FvDevice
)
{
EFI_STATUS Status;
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb;
EFI_FVB_ATTRIBUTES_2 FvbAttributes;
EFI_FV_BLOCK_MAP_ENTRY *BlockMap;
EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;
EFI_FIRMWARE_VOLUME_EXT_HEADER *FwVolExtHeader;
UINT8 *FwCache;
LBA_ENTRY *LbaEntry;
FREE_SPACE_ENTRY *FreeSpaceEntry;
FFS_FILE_LIST_ENTRY *FfsFileEntry;
UINT8 *LbaStart;
UINTN Index;
EFI_LBA LbaIndex;
UINT8 *Ptr;
UINTN Size;
UINT8 *FreeStart;
UINTN FreeSize;
UINT8 ErasePolarity;
EFI_FFS_FILE_STATE FileState;
UINT8 *TopFvAddress;
UINTN TestLength;
EFI_PHYSICAL_ADDRESS BaseAddress;
Fvb = FvDevice->Fvb;
Status = Fvb->GetAttributes (Fvb, &FvbAttributes);
if (EFI_ERROR (Status)) {
return Status;
}
InitializeListHead (&FvDevice->LbaHeader);
InitializeListHead (&FvDevice->FreeSpaceHeader);
InitializeListHead (&FvDevice->FfsFileListHeader);
FwVolHeader = NULL;
Status = GetFwVolHeader (Fvb, &FwVolHeader);
if (EFI_ERROR (Status)) {
return Status;
}
ASSERT (FwVolHeader != NULL);
FvDevice->IsFfs3Fv = CompareGuid (&FwVolHeader->FileSystemGuid, &gEfiFirmwareFileSystem3Guid);
//
// Double Check firmware volume header here
//
if (!VerifyFvHeaderChecksum (FwVolHeader)) {
FreePool (FwVolHeader);
return EFI_VOLUME_CORRUPTED;
}
BlockMap = FwVolHeader->BlockMap;
//
// FwVolHeader->FvLength is the whole FV length including FV header
//
FwCache = AllocateZeroPool ((UINTN) FwVolHeader->FvLength);
if (FwCache == NULL) {
FreePool (FwVolHeader);
return EFI_OUT_OF_RESOURCES;
}
FvDevice->CachedFv = (EFI_PHYSICAL_ADDRESS) (UINTN) FwCache;
//
// Copy to memory
//
LbaStart = FwCache;
LbaIndex = 0;
Ptr = NULL;
if ((FvbAttributes & EFI_FVB2_MEMORY_MAPPED) != 0) {
//
// Get volume base address
//
Status = Fvb->GetPhysicalAddress (Fvb, &BaseAddress);
if (EFI_ERROR (Status)) {
FreePool (FwVolHeader);
return Status;
}
Ptr = (UINT8 *) ((UINTN) BaseAddress);
DEBUG((EFI_D_INFO, "Fv Base Address is 0x%LX\n", BaseAddress));
}
//
// Copy whole FV into the memory
//
while ((BlockMap->NumBlocks != 0) || (BlockMap->Length != 0)) {
for (Index = 0; Index < BlockMap->NumBlocks; Index++) {
LbaEntry = AllocatePool (sizeof (LBA_ENTRY));
if (LbaEntry == NULL) {
FreePool (FwVolHeader);
FreeFvDeviceResource (FvDevice);
return EFI_OUT_OF_RESOURCES;
}
LbaEntry->LbaIndex = LbaIndex;
LbaEntry->StartingAddress = LbaStart;
LbaEntry->BlockLength = BlockMap->Length;
//
// Copy each LBA into memory
//
if ((FvbAttributes & EFI_FVB2_MEMORY_MAPPED) != 0) {
CopyMem (LbaStart, Ptr, BlockMap->Length);
Ptr += BlockMap->Length;
} else {
Size = BlockMap->Length;
Status = Fvb->Read (
Fvb,
LbaIndex,
0,
&Size,
LbaStart
);
//
// Not check EFI_BAD_BUFFER_SIZE, for Size = BlockMap->Length
//
if (EFI_ERROR (Status)) {
FreePool (FwVolHeader);
FreeFvDeviceResource (FvDevice);
return Status;
}
}
LbaIndex++;
LbaStart += BlockMap->Length;
InsertTailList (&FvDevice->LbaHeader, &LbaEntry->Link);
}
BlockMap++;
}
FvDevice->FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *) FwCache;
//
// it is not used any more, so free FwVolHeader
//
FreePool (FwVolHeader);
//
// Scan to check the free space & File list
//
if ((FvbAttributes & EFI_FVB2_ERASE_POLARITY) != 0) {
ErasePolarity = 1;
} else {
ErasePolarity = 0;
}
FvDevice->ErasePolarity = ErasePolarity;
//
// go through the whole FV cache, check the consistence of the FV
//
if (FvDevice->FwVolHeader->ExtHeaderOffset != 0) {
//
// Searching for files starts on an 8 byte aligned boundary after the end of the Extended Header if it exists.
//
FwVolExtHeader = (EFI_FIRMWARE_VOLUME_EXT_HEADER *) (UINTN) (FvDevice->CachedFv + FvDevice->FwVolHeader->ExtHeaderOffset);
Ptr = (UINT8 *) FwVolExtHeader + FwVolExtHeader->ExtHeaderSize;
Ptr = (UINT8 *) ALIGN_POINTER (Ptr, 8);
} else {
Ptr = (UINT8 *) (UINTN) (FvDevice->CachedFv + FvDevice->FwVolHeader->HeaderLength);
}
TopFvAddress = (UINT8 *) (UINTN) (FvDevice->CachedFv + FvDevice->FwVolHeader->FvLength);
//
// Build FFS list & Free Space List here
//
while (Ptr < TopFvAddress) {
TestLength = TopFvAddress - Ptr;
if (TestLength > sizeof (EFI_FFS_FILE_HEADER)) {
TestLength = sizeof (EFI_FFS_FILE_HEADER);
}
if (IsBufferErased (ErasePolarity, Ptr, TestLength)) {
//
// We found free space
//
FreeStart = Ptr;
FreeSize = 0;
do {
TestLength = TopFvAddress - Ptr;
if (TestLength > sizeof (EFI_FFS_FILE_HEADER)) {
TestLength = sizeof (EFI_FFS_FILE_HEADER);
}
if (!IsBufferErased (ErasePolarity, Ptr, TestLength)) {
break;
}
FreeSize += TestLength;
Ptr += TestLength;
} while (Ptr < TopFvAddress);
FreeSpaceEntry = AllocateZeroPool (sizeof (FREE_SPACE_ENTRY));
if (FreeSpaceEntry == NULL) {
FreeFvDeviceResource (FvDevice);
return EFI_OUT_OF_RESOURCES;
}
//
// Create a Free space entry
//
FreeSpaceEntry->StartingAddress = FreeStart;
FreeSpaceEntry->Length = FreeSize;
InsertTailList (&FvDevice->FreeSpaceHeader, &FreeSpaceEntry->Link);
continue;
}
//
// double check boundry
//
if (TestLength < sizeof (EFI_FFS_FILE_HEADER)) {
break;
}
if (!IsValidFFSHeader (
FvDevice->ErasePolarity,
(EFI_FFS_FILE_HEADER *) Ptr
)) {
FileState = GetFileState (
FvDevice->ErasePolarity,
(EFI_FFS_FILE_HEADER *) Ptr
);
if ((FileState == EFI_FILE_HEADER_INVALID) || (FileState == EFI_FILE_HEADER_CONSTRUCTION)) {
if (IS_FFS_FILE2 (Ptr)) {
if (!FvDevice->IsFfs3Fv) {
DEBUG ((EFI_D_ERROR, "Found a FFS3 formatted file: %g in a non-FFS3 formatted FV.\n", &((EFI_FFS_FILE_HEADER *) Ptr)->Name));
}
Ptr = Ptr + sizeof (EFI_FFS_FILE_HEADER2);
} else {
Ptr = Ptr + sizeof (EFI_FFS_FILE_HEADER);
}
continue;
} else {
//
// File system is corrputed, return
//
FreeFvDeviceResource (FvDevice);
return EFI_VOLUME_CORRUPTED;
}
}
if (IS_FFS_FILE2 (Ptr)) {
ASSERT (FFS_FILE2_SIZE (Ptr) > 0x00FFFFFF);
if (!FvDevice->IsFfs3Fv) {
DEBUG ((EFI_D_ERROR, "Found a FFS3 formatted file: %g in a non-FFS3 formatted FV.\n", &((EFI_FFS_FILE_HEADER *) Ptr)->Name));
Ptr = Ptr + FFS_FILE2_SIZE (Ptr);
//
// Adjust Ptr to the next 8-byte aligned boundry.
//
while (((UINTN) Ptr & 0x07) != 0) {
Ptr++;
}
continue;
}
}
if (IsValidFFSFile (FvDevice, (EFI_FFS_FILE_HEADER *) Ptr)) {
FileState = GetFileState (
FvDevice->ErasePolarity,
(EFI_FFS_FILE_HEADER *) Ptr
);
//
// check for non-deleted file
//
if (FileState != EFI_FILE_DELETED) {
//
// Create a FFS list entry for each non-deleted file
//
FfsFileEntry = AllocateZeroPool (sizeof (FFS_FILE_LIST_ENTRY));
if (FfsFileEntry == NULL) {
FreeFvDeviceResource (FvDevice);
return EFI_OUT_OF_RESOURCES;
}
FfsFileEntry->FfsHeader = Ptr;
InsertTailList (&FvDevice->FfsFileListHeader, &FfsFileEntry->Link);
}
if (IS_FFS_FILE2 (Ptr)) {
Ptr = Ptr + FFS_FILE2_SIZE (Ptr);
} else {
Ptr = Ptr + FFS_FILE_SIZE (Ptr);
}
//
// Adjust Ptr to the next 8-byte aligned boundry.
//
while (((UINTN) Ptr & 0x07) != 0) {
Ptr++;
}
} else {
//
// File system is corrupted, return
//
FreeFvDeviceResource (FvDevice);
return EFI_VOLUME_CORRUPTED;
}
}
FvDevice->CurrentFfsFile = NULL;
return EFI_SUCCESS;
}
void emAvFileModel::PropertyChanged(const emString & name, const emString & value)
{
PlayStateType ps;
double d;
bool b;
int i;
if (name=="type") {
b=(value=="video");
if (Video!=b) {
Video=b;
Signal(InfoSignal);
}
}
else if (name=="length") {
i=atoi(value);
if (i<0) i=0;
if (PlayLength!=i) {
PlayLength=i;
Signal(InfoSignal);
if (PlayPos>PlayLength) {
PlayPos=PlayLength;
Signal(PlayPosSignal);
}
}
}
else if (name=="aspect") {
i=atoi(value);
if (i>0) {
d=65536.0/i;
if (Tallness!=d) {
Tallness=d;
Signal(ImageSignal);
}
}
}
else if (name=="info") {
if (InfoText!=value) {
InfoText=value;
Signal(InfoSignal);
}
}
else if (name=="warning") {
if (WarningText!=value) {
WarningText=value;
Signal(InfoSignal);
}
}
else if (name=="audio_visus") {
if (UpdateStringArray(AudioVisus,value)) {
Signal(InfoSignal);
if (AudioVisu>=AudioVisus.GetCount()) {
AudioVisu=0;
Signal(AdjustmentSignal);
}
}
}
else if (name=="audio_channels") {
if (UpdateStringArray(AudioChannels,value)) {
Signal(InfoSignal);
if (AudioChannel>=AudioChannels.GetCount()) {
AudioChannel=0;
Signal(AdjustmentSignal);
}
}
}
else if (name=="spu_channels") {
if (UpdateStringArray(SpuChannels,value)) {
Signal(InfoSignal);
if (SpuChannel>=SpuChannels.GetCount()) {
SpuChannel=0;
Signal(AdjustmentSignal);
}
}
}
else if (name=="state") {
if (value=="paused") ps=PS_PAUSED;
else if (value=="normal") ps=PS_NORMAL;
else if (value=="fast") ps=PS_FAST;
else if (value=="slow") ps=PS_SLOW;
else ps=PS_STOPPED;
if (PlayState!=ps) {
PlayState=ps;
Signal(PlayStateSignal);
if (ps==PS_STOPPED) RemoveFromActiveList();
else AddToActiveList();
if (PlayState==PS_STOPPED && GetFileState()==FS_LOADED) {
CloseStream();
PlayPos=0;
Signal(PlayPosSignal);
Image.Empty();
Signal(ImageSignal);
}
}
}
else if (name=="pos") {
i=atoi(value);
if (i<0) i=0;
if (i>PlayLength) i=PlayLength;
if (PlayPos!=i) {
PlayPos=i;
Signal(PlayPosSignal);
if (GetStreamState()==STREAM_OPENED) SaveFileState();
}
}
else if (name=="audio_volume") {
i=atoi(value);
if (i<0) i=0;
if (i>100) i=100;
if (AudioVolume!=i) {
AudioVolume=i;
Signal(AdjustmentSignal);
}
}
else if (name=="audio_mute") {
b=(value=="on");
if (AudioMute!=b) {
AudioMute=b;
Signal(AdjustmentSignal);
}
}
else if (name=="audio_visu") {
for (i=AudioVisus.GetCount()-1; i>=0; i--) {
if (AudioVisus[i]==value) break;
}
if (i>=0 && AudioVisu!=i) {
AudioVisu=i;
Signal(AdjustmentSignal);
}
}
else if (name=="audio_channel") {
for (i=AudioChannels.GetCount()-1; i>=0; i--) {
if (AudioChannels[i]==value) break;
}
if (i>=0 && AudioChannel!=i) {
AudioChannel=i;
Signal(AdjustmentSignal);
}
}
else if (name=="spu_channel") {
for (i=SpuChannels.GetCount()-1; i>=0; i--) {
if (SpuChannels[i]==value) break;
}
if (i>=0 && SpuChannel!=i) {
SpuChannel=i;
Signal(AdjustmentSignal);
}
}
else {
emDLog(
"emAvFileModel::PropertyChanged: Unsupported property name \"%s\".",
name.Get()
);
}
}
