reactos/drivers/wdm/audio/sysaudio/sysaudio.h

   1 #include <ntifs.h>
   2 #include <ntddk.h>
   3 #include <portcls.h>
   4 #include <ks.h>
   5 #include <ksmedia.h>
   6 #include <math.h>
   7 #define NDEBUG
   8 #include <debug.h>
   9 #include <stdio.h>
  10
  11 typedef struct
  12 {
  13     HANDLE PinHandle;                       // handle to audio irp pin
  14     ULONG References;                       // number of clients having a reference to this audio irp pin
  15 }PIN_INFO;
  16
  17 typedef struct
  18 {
  19     LIST_ENTRY Entry;                                  // device entry for KsAudioDeviceList
  20     UNICODE_STRING DeviceName;                         // symbolic link of audio device
  21
  22     HANDLE Handle;                          // handle to audio device
  23     PFILE_OBJECT FileObject;                // file objecto to audio device
  24
  25     //PIN_INFO * Pins;                        // array of PIN_INFO
  26 }KSAUDIO_DEVICE_ENTRY, *PKSAUDIO_DEVICE_ENTRY;
  27
  28 typedef struct
  29 {
  30     KSDEVICE_HEADER KsDeviceHeader;                     // ks streaming header - must always be first item in device extension
  31     PDEVICE_OBJECT PhysicalDeviceObject;                // pdo
  32     PDEVICE_OBJECT NextDeviceObject;                    // lower device object
  33     ULONG NumberOfKsAudioDevices;                       // number of audio devices
  34
  35     LIST_ENTRY KsAudioDeviceList;                       // audio device list
  36     PVOID KsAudioNotificationEntry;                     // ks audio notification hook
  37     PVOID EchoCancelNotificationEntry;                  // ks echo cancel notification hook
  38     KSPIN_LOCK Lock;                                    // audio device list mutex
  39
  40     PFILE_OBJECT KMixerFileObject;                      // mixer file object
  41     HANDLE KMixerHandle;                                // mixer file handle
  42
  43 }SYSAUDIODEVEXT, *PSYSAUDIODEVEXT;
  44
  45 // struct DISPATCH_CONTEXT
  46 //
  47 // This structure is used to dispatch read / write / device io requests
  48 // It is stored in the file object FsContext2 member
  49 // Note: FsContext member is reserved for ks object header
  50
  51 typedef struct
  52 {
  53     KSOBJECT_HEADER ObjectHeader;                        // pin object header
  54     HANDLE Handle;                                       // audio irp pin handle
  55     ULONG PinId;                                         // pin id of device
  56     PKSAUDIO_DEVICE_ENTRY AudioEntry;                 // pointer to audio device entry
  57
  58     HANDLE hMixerPin;                                    // handle to mixer pin
  59 }DISPATCH_CONTEXT, *PDISPATCH_CONTEXT;
  60
  61 NTSTATUS
  62 SysAudioAllocateDeviceHeader(
  63     IN SYSAUDIODEVEXT *DeviceExtension);
  64
  65 NTSTATUS
  66 SysAudioRegisterDeviceInterfaces(
  67     IN PDEVICE_OBJECT DeviceObject);
  68
  69 NTSTATUS
  70 SysAudioRegisterNotifications(
  71     IN PDRIVER_OBJECT  DriverObject,
  72     IN PDEVICE_OBJECT DeviceObject);
  73
  74 NTSTATUS
  75 SysAudioHandleProperty(
  76     PDEVICE_OBJECT DeviceObject,
  77     PIRP Irp);
  78
  79 NTSTATUS
  80 SysAudioOpenKMixer(
  81     IN SYSAUDIODEVEXT *DeviceExtension);
  82
  83 NTSTATUS
  84 OpenDevice(
  85     IN PUNICODE_STRING DeviceName,
  86     IN PHANDLE HandleOut,
  87     IN PFILE_OBJECT * FileObjectOut);
  88
  89 PKSAUDIO_DEVICE_ENTRY
  90 GetListEntry(
  91     IN PLIST_ENTRY Head,
  92     IN ULONG Index);
  93
  94 NTSTATUS
  95 NTAPI
  96 DispatchCreateSysAudioPin(
  97     IN  PDEVICE_OBJECT DeviceObject,
  98     IN  PIRP Irp);
  99
 100 ULONG
 101 GetDeviceCount(
 102     PSYSAUDIODEVEXT DeviceExtension,
 103     BOOL WaveIn);
 104
 105 NTSTATUS
 106 GetPinInstanceCount(
 107     PKSAUDIO_DEVICE_ENTRY Entry,
 108     PKSPIN_CINSTANCES PinInstances,
 109     PKSPIN_CONNECT PinConnect);
 110
 111 NTSTATUS
 112 ComputeCompatibleFormat(
 113     IN PKSAUDIO_DEVICE_ENTRY Entry,
 114     IN ULONG PinId,
 115     IN PKSDATAFORMAT_WAVEFORMATEX ClientFormat,
 116     OUT PKSDATAFORMAT_WAVEFORMATEX MixerFormat);
 117
 118 PVOID
 119 AllocateItem(
 120     IN POOL_TYPE PoolType,
 121     IN SIZE_T NumberOfBytes);
 122
 123 VOID
 124 FreeItem(
 125     IN PVOID Item);
 126