NTSTATUS
CompareProductName(
IN HANDLE hSubKey,
IN LPWSTR PnpName,
IN ULONG ProductNameSize,
OUT LPWSTR ProductName)
{
PKEY_VALUE_PARTIAL_INFORMATION PartialInformation;
UNICODE_STRING DriverDescName = RTL_CONSTANT_STRING(L"DriverDesc");
UNICODE_STRING MatchingDeviceIdName = RTL_CONSTANT_STRING(L"MatchingDeviceId");
ULONG Length;
LPWSTR DeviceName;
/* read MatchingDeviceId value */
PartialInformation = ReadKeyValue(hSubKey, &MatchingDeviceIdName);
if (!PartialInformation)
return STATUS_UNSUCCESSFUL;
/* extract last '&' */
DeviceName = wcsrchr((LPWSTR)PartialInformation->Data, L'&');
ASSERT(DeviceName);
/* terminate it */
DeviceName[0] = L'\0';
Length = wcslen((LPWSTR)PartialInformation->Data);
DPRINT("DeviceName %S PnpName %S Length %u\n", (LPWSTR)PartialInformation->Data, PnpName, Length);
if (_wcsnicmp((LPWSTR)PartialInformation->Data, &PnpName[4], Length))
{
FreeItem(PartialInformation);
return STATUS_NO_MATCH;
}
/* free buffer */
FreeItem(PartialInformation);
/* read DriverDescName value */
PartialInformation = ReadKeyValue(hSubKey, &DriverDescName);
if (!PartialInformation)
{
/* failed to read driver desc key */
return STATUS_UNSUCCESSFUL;
}
/* copy key name */
Length = min(ProductNameSize * sizeof(WCHAR), PartialInformation->DataLength);
RtlMoveMemory(ProductName, (PVOID)PartialInformation->Data, Length);
/* zero terminate it */
ProductName[ProductNameSize-1] = L'\0';
/* free buffer */
FreeItem(PartialInformation);
return STATUS_SUCCESS;
}
VOID
FreeEventData(IN PVOID EventData)
{
PKSEVENTDATA Data = (PKSEVENTDATA)EventData;
FreeItem(Data->EventHandle.Event);
FreeItem(Data);
}
NTSTATUS
NTAPI
USBCCGP_GetStringDescriptor(
IN PDEVICE_OBJECT DeviceObject,
IN ULONG DescriptorLength,
IN UCHAR DescriptorIndex,
IN LANGID LanguageId,
OUT PVOID *OutDescriptor)
{
NTSTATUS Status;
PUSB_STRING_DESCRIPTOR StringDescriptor;
ULONG Size;
PVOID Buffer;
// retrieve descriptor
Status = USBCCGP_GetDescriptor(DeviceObject, USB_STRING_DESCRIPTOR_TYPE, DescriptorLength, DescriptorIndex, LanguageId, OutDescriptor);
if (!NT_SUCCESS(Status))
{
// failed
return Status;
}
// get descriptor structure
StringDescriptor = (PUSB_STRING_DESCRIPTOR)*OutDescriptor;
// sanity check
ASSERT(StringDescriptor->bLength < DescriptorLength - 2);
if (StringDescriptor->bLength == 2)
{
// invalid descriptor
FreeItem(StringDescriptor);
return STATUS_DEVICE_DATA_ERROR;
}
// calculate size
Size = StringDescriptor->bLength + sizeof(WCHAR);
// allocate buffer
Buffer = AllocateItem(NonPagedPool, Size);
if (!Buffer)
{
// no memory
FreeItem(StringDescriptor);
return STATUS_INSUFFICIENT_RESOURCES;
}
// copy result
RtlCopyMemory(Buffer, StringDescriptor->bString, Size - FIELD_OFFSET(USB_STRING_DESCRIPTOR, bString));
// free buffer
FreeItem(StringDescriptor);
// store result
*OutDescriptor = (PVOID)Buffer;
return STATUS_SUCCESS;
}
TEST
test_Enqueue(){
Queue q;
Node *newItem, *newItem2, *newItem3;
InitQueue(&q);
newItem = NewItem();
//add item to queue
AddQueue(&q, newItem);
ASSERT(q.head == newItem);
ASSERT(q.tail == newItem);
ASSERT(q.count == 1);
newItem2 = NewItem();
AddQueue(&q, newItem2);
//make sure that head val has not changed, and only tail val has changed
ASSERT(q.head == newItem);
ASSERT(q.tail == newItem2);
ASSERT(q.count == 2);
//head should point at tail
ASSERT(q.head->next == q.tail);
//one more for good measure
newItem3 = NewItem();
AddQueue(&q, newItem3);
//head has not changed, as we add to the end
ASSERT(q.head == newItem);
//tail is our new item
ASSERT(q.tail == newItem3);
//count updated correctly
ASSERT(q.count == 3);
//head.prev points to tail
ASSERT(q.head->prev == q.tail);
//head.next does not point to tail, points to middle
ASSERT(q.head->next == newItem2);
//3 items, all connected
ASSERT(q.head->next->next == q.tail);
//tail.next == head
ASSERT(q.tail->next == q.head);
//free items
FreeItem(newItem);
FreeItem(newItem2);
FreeItem(newItem3);
PASS();
}
TEST
test_RotateQ(){
Queue q;
InitQueue(&q);
Node *newItem1, *newItem2, *newItem3, *newItem4;
newItem1 = NewItem();
newItem2 = NewItem();
newItem3 = NewItem();
newItem4 = NewItem();
AddQueue(&q, newItem1);
AddQueue(&q, newItem2);
AddQueue(&q, newItem3);
AddQueue(&q, newItem4);
//Queue is 1 2 3 4
ASSERT(q.head == newItem1);
ASSERT(q.tail == newItem4);
RotateQ(&q);
//Queue is 2 3 4 1
ASSERT(q.head == newItem2);
ASSERT(q.tail == newItem1);
RotateQ(&q);
//Queue is 3 4 1 2
ASSERT(q.head == newItem3);
ASSERT(q.tail == newItem2);
RotateQ(&q);
//Queue is 4 1 2 3
ASSERT(q.head == newItem4);
ASSERT(q.tail == newItem3);
RotateQ(&q);
//Queue is 1 2 3 4
ASSERT(q.head == newItem1);
ASSERT(q.tail == newItem4);
FreeItem(newItem1);
FreeItem(newItem2);
FreeItem(newItem3);
FreeItem(newItem4);
PASS();
}
/**
* Remove the specified DrmData item <code>d</code>.
*
* @param p - the pointer of the DRM content InputStream object.
*
* @return <code>JNI_DRM_SUCCESS</code> if remove successfuly,
* otherwise return <code>JNI_DRM_FAILURE</code>
*/
static int32_t RemoveItem(int32_t id)
{
DrmData *curItem, *preItem;
if (NULL == drmTable)
return CDrmRawContent::JNI_DRM_FAILURE;
preItem = NULL;
for (curItem = drmTable; curItem != NULL; curItem = curItem->next) {
if (id == curItem->id) {
if (curItem == drmTable)
drmTable = curItem->next;
else
preItem->next = curItem->next;
FreeItem(curItem);
return CDrmRawContent::JNI_DRM_SUCCESS;
}
preItem = curItem;
}
return CDrmRawContent::JNI_DRM_FAILURE;
}
NTSTATUS
NTAPI
KspCreateObjectType(
IN HANDLE ParentHandle,
IN LPWSTR ObjectType,
PVOID CreateParameters,
UINT CreateParametersSize,
IN ACCESS_MASK DesiredAccess,
OUT PHANDLE NodeHandle)
{
NTSTATUS Status;
IO_STATUS_BLOCK IoStatusBlock;
OBJECT_ATTRIBUTES ObjectAttributes;
UNICODE_STRING Name;
/* calculate request length */
Name.Length = 0;
Name.MaximumLength = wcslen(ObjectType) * sizeof(WCHAR) + CreateParametersSize + 1 * sizeof(WCHAR);
Name.MaximumLength += sizeof(WCHAR);
/* acquire request buffer */
Name.Buffer = AllocateItem(NonPagedPool, Name.MaximumLength);
/* check for success */
if (!Name.Buffer)
{
/* insufficient resources */
return STATUS_INSUFFICIENT_RESOURCES;
}
/* build a request which looks like {ObjectClass}\CreateParameters
* For pins the parent is the reference string used in registration
* For clocks it is full path for pin\{ClockGuid}\ClockCreateParams
*/
RtlAppendUnicodeToString(&Name, ObjectType);
RtlAppendUnicodeToString(&Name, L"\\");
/* append create parameters */
RtlMoveMemory(Name.Buffer + (Name.Length / sizeof(WCHAR)), CreateParameters, CreateParametersSize);
Name.Length += CreateParametersSize;
Name.Buffer[Name.Length / 2] = L'\0';
InitializeObjectAttributes(&ObjectAttributes, &Name, OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE | OBJ_OPENIF, ParentHandle, NULL);
/* create the instance */
Status = IoCreateFile(NodeHandle,
DesiredAccess,
&ObjectAttributes,
&IoStatusBlock,
NULL,
0,
0,
FILE_OPEN,
0,
NULL,
0,
CreateFileTypeNone,
NULL,
IO_NO_PARAMETER_CHECKING | IO_FORCE_ACCESS_CHECK);
/* free request buffer */
FreeItem(Name.Buffer);
return Status;
}
/*
@implemented
*/
KSDDKAPI
VOID
NTAPI
KsUnregisterWorker(
IN PKSWORKER Worker)
{
PKSIWORKER KsWorker;
KIRQL OldIrql;
if (!Worker)
return;
/* get ks worker implementation */
KsWorker = (PKSIWORKER)Worker;
/* acquire spinlock */
KeAcquireSpinLock(&KsWorker->Lock, &OldIrql);
/* fake status running to avoid work items to be queued by the counted worker */
KsWorker->Counter = 1;
/* is there currently a work item active */
if (KsWorker->QueuedWorkItemCount)
{
/* release the lock */
KeReleaseSpinLock(&KsWorker->Lock, OldIrql);
/* wait for the worker routine to finish */
KeWaitForSingleObject(&KsWorker->Event, Executive, KernelMode, FALSE, NULL);
}
else
{
/* no work item active, just release the lock */
KeReleaseSpinLock(&KsWorker->Lock, OldIrql);
}
/* free worker context */
FreeItem(KsWorker);
}
NTSTATUS
NTAPI
Dispatch_fnClose(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
PIO_STACK_LOCATION IoStack;
PDISPATCH_CONTEXT DispatchContext;
NTSTATUS Status;
// get current irp stack
IoStack = IoGetCurrentIrpStackLocation(Irp);
// get dispatch context
DispatchContext = (PDISPATCH_CONTEXT)IoStack->FileObject->FsContext;
// let IrpTarget handle request
Status = DispatchContext->Target->Close(DeviceObject, Irp);
if (NT_SUCCESS(Status))
{
KsFreeObjectHeader(DispatchContext->ObjectHeader);
FreeItem(DispatchContext, TAG_PORTCLASS);
}
// done
return Status;
}
/*
@implemented
*/
KSDDKAPI
NTSTATUS
NTAPI
KsValidateClockCreateRequest(
IN PIRP Irp,
OUT PKSCLOCK_CREATE* OutClockCreate)
{
PKSCLOCK_CREATE ClockCreate;
NTSTATUS Status;
ULONG Size;
/* minimum request size */
Size = sizeof(KSCLOCK_CREATE);
/* copy create request */
Status = KspCopyCreateRequest(Irp,
KSSTRING_Clock,
&Size,
(PVOID*)&ClockCreate);
if (!NT_SUCCESS(Status))
return Status;
if (ClockCreate->CreateFlags != 0)
{
/* flags must be zero */
FreeItem(ClockCreate);
return STATUS_INVALID_PARAMETER;
}
*OutClockCreate = ClockCreate;
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
Pin_fnClose(
PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
PDISPATCH_CONTEXT Context;
PIO_STACK_LOCATION IoStack;
//DPRINT("Pin_fnClose called DeviceObject %p Irp %p\n", DeviceObject, Irp);
/* Get current stack location */
IoStack = IoGetCurrentIrpStackLocation(Irp);
/* The dispatch context is stored in the FsContext member */
Context = (PDISPATCH_CONTEXT)IoStack->FileObject->FsContext;
if (Context->Handle)
{
ZwClose(Context->Handle);
}
if (Context->hMixerPin)
{
ZwClose(Context->hMixerPin);
}
FreeItem(Context);
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_SUCCESS;
}
/*
*****************************************************************************
**
** FUNCTION NAME: GetFirstTaskItemFromDB
**
** FUNCTION INPUTS:
** ptrEncodeItem: the encode information struct.
**
** FUNCTION DESCRIPTION
** get the first record from the zriptask.db, and receive the total record of the db.
**
** FUNCTION OUTPUTS:
** return: the count of the enc_pending record in the zriptask.db.
** HISTORY:
**
** 2008-7-2 HChen Created.
**
*****************************************************************************
*/
int GetFirstTaskItemFromDB(PENC_PENDING ptrEncodeItem)
{
int nRetVal = 0;
char **result;
int nRow, nCol;
if(QueryPendingTask(ENCPENDING,&result,&nRow,&nCol) == ZAPP_SUCCESS)
{
if((nRow >= 1)
&&(result)
&&(result[1*nCol+0])
&&(result[1*nCol+1])
&&(result[1*nCol+2]))
{
ZFREE(gObjID);
gObjID = strdup(result[1*nCol+0]); /*get the first record's objid of the db*/
if((ConvertTask.eThreadStatus == THREAD_FINISHED) /*if the ConvertTask is finished, the set value to the global struct*/
&&(ConvertTask.eItemStatus == ITEM_ENCODED))
{
ConvertTask.nAccTrackNum++;
ConvertTask.eItemStatus = ITEM_INIT;
FreeItem(ptrEncodeItem);
ptrEncodeItem->objID = strdup(result[1*nCol+0]);
ptrEncodeItem->ptrAudioFormat = strdup(result[1*nCol+1]);
ptrEncodeItem->ptrFormatCfg = strdup(result[1*nCol+2]);
}
}
nRetVal = nRow;
}
if(result)
{
ZripTaskFreeResult(result);
}
return nRetVal;
}
VOID
CALLBACK
PwrCompletionFunction(
IN PDEVICE_OBJECT DeviceObject,
IN UCHAR MinorFunction,
IN POWER_STATE PowerState,
IN PVOID Context,
IN PIO_STATUS_BLOCK IoStatus)
{
NTSTATUS Status;
PQUERY_POWER_CONTEXT PwrContext = (PQUERY_POWER_CONTEXT)Context;
if (NT_SUCCESS(IoStatus->Status))
{
// forward request to lower device object
Status = PcForwardIrpSynchronous(PwrContext->DeviceObject, PwrContext->Irp);
}
else
{
// failed
Status = IoStatus->Status;
}
// start next power irp
PoStartNextPowerIrp(PwrContext->Irp);
// complete request
PwrContext->Irp->IoStatus.Status = Status;
IoCompleteRequest(PwrContext->Irp, IO_NO_INCREMENT);
// free context
FreeItem(PwrContext, TAG_PORTCLASS);
}
ULONG
NTAPI
IKsFilterFactory_fnRelease(
IKsFilterFactory * iface)
{
IKsFilterFactoryImpl * This = (IKsFilterFactoryImpl*)CONTAINING_RECORD(iface, IKsFilterFactoryImpl, Header.OuterUnknown);
InterlockedDecrement(&This->ref);
if (This->ref == 0)
{
if (!IsListEmpty(&This->SymbolicLinkList))
{
/* disable device interfaces */
KspSetDeviceInterfacesState(&This->SymbolicLinkList, FALSE);
/* free device interface strings */
KspFreeDeviceInterfaces(&This->SymbolicLinkList);
}
FreeItem(This);
return 0;
}
/* Return new reference count */
return This->ref;
}
/*
@implemented
*/
KSDDKAPI
NTSTATUS
NTAPI
KsCreateDefaultClock(
IN PIRP Irp,
IN PKSDEFAULTCLOCK DefaultClock)
{
NTSTATUS Status;
PKSCLOCK_CREATE ClockCreate;
PKSICLOCK Clock;
Status = KsValidateClockCreateRequest(Irp, &ClockCreate);
if (!NT_SUCCESS(Status))
return Status;
/* let's allocate the clock struct */
Clock = AllocateItem(NonPagedPool, sizeof(KSICLOCK));
if (!Clock)
{
FreeItem(ClockCreate);
return STATUS_INSUFFICIENT_RESOURCES;
}
/* now allocate the object header */
Status = KsAllocateObjectHeader((PVOID*)&Clock->ObjectHeader, 0, NULL, Irp, &DispatchTable);
/* did it work */
if (!NT_SUCCESS(Status))
{
/* failed */
FreeItem(ClockCreate);
FreeItem(Clock);
return Status;
}
/* initialize clock */
/* FIXME IKsClock */
Clock->ObjectHeader->ObjectType = (PVOID)Clock;
Clock->ref = 1;
Clock->ClockCreate = ClockCreate;
Clock->DefaultClock = (PKSIDEFAULTCLOCK)DefaultClock;
/* increment reference count */
InterlockedIncrement(&Clock->DefaultClock->ReferenceCount);
return Status;
}
MIXER_STATUS
Enum(
IN PVOID EnumContext,
IN ULONG DeviceIndex,
OUT LPWSTR * DeviceName,
OUT PHANDLE OutHandle,
OUT PHANDLE OutKey)
{
PDEVICE_OBJECT DeviceObject;
ULONG DeviceCount;
NTSTATUS Status;
UNICODE_STRING KeyName;
/* get enumeration context */
DeviceObject = (PDEVICE_OBJECT)EnumContext;
/* get device count */
DeviceCount = GetSysAudioDeviceCount(DeviceObject);
if (DeviceIndex >= DeviceCount)
{
/* no more devices */
return MM_STATUS_NO_MORE_DEVICES;
}
/* get device name */
Status = GetSysAudioDevicePnpName(DeviceObject, DeviceIndex, DeviceName);
if (!NT_SUCCESS(Status))
{
/* failed to retrieve device name */
return MM_STATUS_UNSUCCESSFUL;
}
/* intialize key name */
RtlInitUnicodeString(&KeyName, *DeviceName);
/* open device interface key */
Status = IoOpenDeviceInterfaceRegistryKey(&KeyName, GENERIC_READ | GENERIC_WRITE, OutKey);
#if 0
if (!NT_SUCCESS(Status))
{
/* failed to open key */
DPRINT("IoOpenDeviceInterfaceRegistryKey failed with %lx\n", Status);
FreeItem(*DeviceName);
return MM_STATUS_UNSUCCESSFUL;
}
#endif
/* open device handle */
Status = OpenDevice(*DeviceName, OutHandle, NULL);
if (!NT_SUCCESS(Status))
{
/* failed to open device */
return MM_STATUS_UNSUCCESSFUL;
}
return MM_STATUS_SUCCESS;
}
NTSTATUS
NTAPI
IoCompletion (
PDEVICE_OBJECT DeviceObject,
PIRP Irp,
PVOID Ctx)
{
PKSSTREAM_HEADER Header;
ULONG Length = 0;
PMDL Mdl, NextMdl;
PWDMAUD_COMPLETION_CONTEXT Context = (PWDMAUD_COMPLETION_CONTEXT)Ctx;
/* get stream header */
Header = (PKSSTREAM_HEADER)Irp->AssociatedIrp.SystemBuffer;
/* sanity check */
ASSERT(Header);
/* time to free all allocated mdls */
Mdl = Irp->MdlAddress;
while(Mdl)
{
/* get next mdl */
NextMdl = Mdl->Next;
/* unlock pages */
MmUnlockPages(Mdl);
/* grab next mdl */
Mdl = NextMdl;
}
/* clear mdl list */
Irp->MdlAddress = NULL;
/* check if mdl is locked */
if (Context->Mdl->MdlFlags & MDL_PAGES_LOCKED)
{
/* unlock pages */
MmUnlockPages(Context->Mdl);
}
/* now free the mdl */
IoFreeMdl(Context->Mdl);
DPRINT("IoCompletion Irp %p IoStatus %lx Information %lx Length %lu\n", Irp, Irp->IoStatus.Status, Irp->IoStatus.Information, Length);
if (!NT_SUCCESS(Irp->IoStatus.Status))
{
/* failed */
Irp->IoStatus.Information = 0;
}
/* free context */
FreeItem(Context);
return STATUS_SUCCESS;
}
/*
@implemented
*/
KSDDKAPI
VOID
NTAPI
KsFreeObjectBag(
IN KSOBJECT_BAG ObjectBag)
{
PLIST_ENTRY Entry;
PKSIOBJECT_BAG Bag;
PKSIOBJECT_BAG_ENTRY BagEntry;
ULONG TotalRefs;
/* get real object bag */
Bag = (PKSIOBJECT_BAG)ObjectBag;
/* acquire bag mutex */
KeWaitForSingleObject(Bag->BagMutex, Executive, KernelMode, FALSE, NULL);
while(!IsListEmpty(&Bag->ObjectList))
{
/* get an bag entry */
Entry = RemoveHeadList(&Bag->ObjectList);
/* access bag entry item */
BagEntry = (PKSIOBJECT_BAG_ENTRY)CONTAINING_RECORD(Entry, KSIOBJECT_BAG, Entry);
/* check if the item is present in some other bag */
TotalRefs = KspGetObjectItemReferenceCount((PKSIDEVICE_HEADER)Bag->DeviceHeader, &BagEntry->Item);
if (TotalRefs == 0)
{
/* item is ready to be freed */
BagEntry->Free(BagEntry->Item);
}
/* free bag entry item */
FreeItem(BagEntry);
}
/* remove bag entry from device object list */
RemoveEntryList(&Bag->Entry);
/* release bag mutex */
KeReleaseMutex(Bag->BagMutex, FALSE);
/* now free object bag */
FreeItem(Bag);
}
void CCollection::AtFree(int nIndex)
{
void * pItem;
pItem = At(nIndex);
if (pItem)
FreeItem(pItem);
AtDelete(nIndex);
}
TEST
test_NewItem(){
Node * newItem;
newItem = NewItem();
ASSERT(newItem);
FreeItem(newItem);
PASS();
}
PKEY_VALUE_PARTIAL_INFORMATION
ReadKeyValue(
IN HANDLE hSubKey,
IN PUNICODE_STRING KeyName)
{
NTSTATUS Status;
ULONG Length;
PKEY_VALUE_PARTIAL_INFORMATION PartialInformation;
/* now query MatchingDeviceId key */
Status = ZwQueryValueKey(hSubKey, KeyName, KeyValuePartialInformation, NULL, 0, &Length);
/* check for success */
if (Status != STATUS_BUFFER_TOO_SMALL)
return NULL;
/* allocate a buffer for key data */
PartialInformation = AllocateItem(NonPagedPool, Length);
if (!PartialInformation)
return NULL;
/* now query MatchingDeviceId key */
Status = ZwQueryValueKey(hSubKey, KeyName, KeyValuePartialInformation, PartialInformation, Length, &Length);
/* check for success */
if (!NT_SUCCESS(Status))
{
FreeItem(PartialInformation);
return NULL;
}
if (PartialInformation->Type != REG_SZ)
{
/* invalid key type */
FreeItem(PartialInformation);
return NULL;
}
return PartialInformation;
}
NTSTATUS
NTAPI
IoCompletion (
PDEVICE_OBJECT DeviceObject,
PIRP Irp,
PVOID Ctx)
{
PKSSTREAM_HEADER Header;
PMDL Mdl, NextMdl;
PWDMAUD_COMPLETION_CONTEXT Context = (PWDMAUD_COMPLETION_CONTEXT)Ctx;
/* get stream header */
Header = (PKSSTREAM_HEADER)Irp->AssociatedIrp.SystemBuffer;
/* sanity check */
ASSERT(Header);
/* time to free all allocated mdls */
Mdl = Irp->MdlAddress;
while(Mdl)
{
/* get next mdl */
NextMdl = Mdl->Next;
/* unlock pages */
MmUnlockPages(Mdl);
/* grab next mdl */
Mdl = NextMdl;
}
//IoFreeMdl(Mdl);
/* clear mdl list */
Irp->MdlAddress = Context->Mdl;
DPRINT("IoCompletion Irp %p IoStatus %lx Information %lx\n", Irp, Irp->IoStatus.Status, Irp->IoStatus.Information);
if (!NT_SUCCESS(Irp->IoStatus.Status))
{
/* failed */
Irp->IoStatus.Information = 0;
}
/* dereference file object */
ObDereferenceObject(Context->FileObject);
/* free context */
FreeItem(Context);
return STATUS_SUCCESS;
}
void FreeConvertTask(void)
{
ZFREE(ConvertTask.PreObjID);
freeMetaTrack(&(ConvertTask.TrackMeta));
FreeItem(&(ConvertTask.CurEncodeItem));
ZFREE(ConvertTask.UpdateItem.objID);
ZFREE(ConvertTask.UpdateItem.ptrAudioFormat);
ZFREE(ConvertTask.UpdateItem.ptrWavPath);
ZFREE(ConvertTask.UpdateItem.ptrEncPath);
ZFREE(ConvertTask.DiscAudioSrcPath);
ZFREE(ConvertTask.DiscEncodePath);
}
NTSTATUS
USBCCGP_SelectInterface(
IN PDEVICE_OBJECT DeviceObject,
IN PFDO_DEVICE_EXTENSION DeviceExtension,
IN ULONG InterfaceIndex)
{
NTSTATUS Status;
PURB Urb;
//
// allocate urb
//
Urb = AllocateItem(NonPagedPool, GET_SELECT_INTERFACE_REQUEST_SIZE(DeviceExtension->InterfaceList[InterfaceIndex].InterfaceDescriptor->bNumEndpoints));
if (!Urb)
{
//
// no memory
//
return STATUS_INSUFFICIENT_RESOURCES;
}
//
// now prepare interface urb
//
UsbBuildSelectInterfaceRequest(Urb, GET_SELECT_INTERFACE_REQUEST_SIZE(DeviceExtension->InterfaceList[InterfaceIndex].InterfaceDescriptor->bNumEndpoints), DeviceExtension->ConfigurationHandle, DeviceExtension->InterfaceList[InterfaceIndex].InterfaceDescriptor->bInterfaceNumber, DeviceExtension->InterfaceList[InterfaceIndex].InterfaceDescriptor->bAlternateSetting);
//
// now select the interface
//
Status = USBCCGP_SyncUrbRequest(DeviceExtension->NextDeviceObject, Urb);
//
// did it succeeed
//
if (NT_SUCCESS(Status))
{
//
// update configuration info
//
ASSERT(Urb->UrbSelectInterface.Interface.Length == DeviceExtension->InterfaceList[InterfaceIndex].Interface->Length);
RtlCopyMemory(DeviceExtension->InterfaceList[InterfaceIndex].Interface, &Urb->UrbSelectInterface.Interface, Urb->UrbSelectInterface.Interface.Length);
}
//
// free urb
//
FreeItem(Urb);
//
// done
//
return Status;
}
void CCollection::FreeAll()
{
void * pItem;
int i;
for (i=0; i<m_nCount; i++)
{
pItem = At(i);
if (pItem)
FreeItem(pItem);
}
DeleteAll();
}
void CBypassQueue::RemoveAll(void)
{
BITEM *pItem;
m_Locker.Lock();
pItem = m_List.GetHead();
while((pItem = m_List.GetHead()))
{
m_List.RemoveAt((POSITION)pItem->nPosition);
FreeItem(pItem);
}
m_Locker.Unlock();
}
NTSTATUS
NTAPI
WdmAudGetDeviceInterface(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp,
IN PWDMAUD_DEVICE_INFO DeviceInfo)
{
PWDMAUD_DEVICE_EXTENSION DeviceExtension;
NTSTATUS Status;
LPWSTR Device;
ULONG Size, Length;
/* get device extension */
DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
/* get device interface string input length */
Size = DeviceInfo->u.Interface.DeviceInterfaceStringSize;
/* get mixer info */
Status = WdmAudGetPnpNameByIndexAndType(DeviceInfo->DeviceIndex, DeviceInfo->DeviceType, &Device);
/* check for success */
if (!NT_SUCCESS(Status))
{
/* invalid device id */
return SetIrpIoStatus(Irp, Status, sizeof(WDMAUD_DEVICE_INFO));
}
/* calculate length */
Length = (wcslen(Device)+1) * sizeof(WCHAR);
if (!Size)
{
/* store device interface size */
DeviceInfo->u.Interface.DeviceInterfaceStringSize = Length;
}
else if (Size < Length)
{
/* buffer too small */
DeviceInfo->u.Interface.DeviceInterfaceStringSize = Length;
return SetIrpIoStatus(Irp, STATUS_BUFFER_OVERFLOW, sizeof(WDMAUD_DEVICE_INFO));
}
else
{
//FIXME SEH
RtlMoveMemory(DeviceInfo->u.Interface.DeviceInterfaceString, Device, Length);
}
FreeItem(Device);
return SetIrpIoStatus(Irp, STATUS_SUCCESS, sizeof(WDMAUD_DEVICE_INFO));
}
NTSTATUS
GetSysAudioDevicePnpName(
IN PDEVICE_OBJECT DeviceObject,
IN ULONG DeviceIndex,
OUT LPWSTR * Device)
{
ULONG BytesReturned;
KSP_PIN Pin;
NTSTATUS Status;
PWDMAUD_DEVICE_EXTENSION DeviceExtension;
/* first check if the device index is within bounds */
if (DeviceIndex >= GetSysAudioDeviceCount(DeviceObject))
return STATUS_INVALID_PARAMETER;
/* setup the query request */
Pin.Property.Set = KSPROPSETID_Sysaudio;
Pin.Property.Id = KSPROPERTY_SYSAUDIO_DEVICE_INTERFACE_NAME;
Pin.Property.Flags = KSPROPERTY_TYPE_GET;
Pin.PinId = DeviceIndex;
DeviceExtension = (PWDMAUD_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
/* query sysaudio for the device path */
Status = KsSynchronousIoControlDevice(DeviceExtension->FileObject, KernelMode, IOCTL_KS_PROPERTY, (PVOID)&Pin, sizeof(KSPROPERTY) + sizeof(ULONG), NULL, 0, &BytesReturned);
/* check if the request failed */
if (Status != STATUS_BUFFER_TOO_SMALL || BytesReturned == 0)
return STATUS_UNSUCCESSFUL;
/* allocate buffer for the device */
*Device = AllocateItem(NonPagedPool, BytesReturned);
if (!Device)
return STATUS_INSUFFICIENT_RESOURCES;
/* query sysaudio again for the device path */
Status = KsSynchronousIoControlDevice(DeviceExtension->FileObject, KernelMode, IOCTL_KS_PROPERTY, (PVOID)&Pin, sizeof(KSPROPERTY) + sizeof(ULONG), (PVOID)*Device, BytesReturned, &BytesReturned);
if (!NT_SUCCESS(Status))
{
/* failed */
FreeItem(*Device);
return Status;
}
return Status;
}
ULONG
NTAPI
IKsAllocator_fnRelease(
IKsAllocator * iface)
{
PALLOCATOR This = (PALLOCATOR)CONTAINING_RECORD(iface, ALLOCATOR, lpVtbl);
InterlockedDecrement(&This->ref);
if (This->ref == 0)
{
FreeItem(This);
return 0;
}
/* Return new reference count */
return This->ref;
}
NTSTATUS
NTAPI
WdmAudGetMixerEvent(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp,
IN PWDMAUD_DEVICE_INFO DeviceInfo,
IN PWDMAUD_CLIENT ClientInfo)
{
PLIST_ENTRY Entry;
PEVENT_ENTRY EventEntry;
/* enumerate event list and check if there is a new event */
Entry = ClientInfo->MixerEventList.Flink;
while(Entry != &ClientInfo->MixerEventList)
{
/* grab event entry */
EventEntry = (PEVENT_ENTRY)CONTAINING_RECORD(Entry, EVENT_ENTRY, Entry);
if (EventEntry->hMixer == DeviceInfo->hDevice)
{
/* found an entry */
DeviceInfo->u.MixerEvent.hMixer = EventEntry->hMixer;
DeviceInfo->u.MixerEvent.NotificationType = EventEntry->NotificationType;
DeviceInfo->u.MixerEvent.Value = EventEntry->Value;
/* remove entry from list */
RemoveEntryList(&EventEntry->Entry);
/* free event entry */
FreeItem(EventEntry);
/* done */
return SetIrpIoStatus(Irp, STATUS_SUCCESS, sizeof(WDMAUD_DEVICE_INFO));
}
/* move to next */
Entry = Entry->Flink;
}
/* no event entry available */
return SetIrpIoStatus(Irp, STATUS_UNSUCCESSFUL, sizeof(WDMAUD_DEVICE_INFO));
}
