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

   1 #pragma once
   2
   3 #include <ntifs.h>
   4 #include <ntddk.h>
   5 #include <portcls.h>
   6 #include <ks.h>
   7 #include <ksmedia.h>
   8 #include <math.h>
   9 #define NDEBUG
  10 #include <debug.h>
  11 #include <stdio.h>
  12
  13 typedef struct
  14 {
  15     HANDLE PinHandle;                       // handle to audio irp pin
  16     ULONG References;                       // number of clients having a reference to this audio irp pin
  17 }PIN_INFO;
  18
  19 typedef struct
  20 {
  21     LIST_ENTRY Entry;                                  // device entry for KsAudioDeviceList
  22     UNICODE_STRING DeviceName;                         // symbolic link of audio device
  23
  24     HANDLE Handle;                          // handle to audio device
  25     PFILE_OBJECT FileObject;                // file objecto to audio device
  26
  27     PIN_INFO * Pins;                        // array of PIN_INFO
  28     ULONG PinDescriptorsCount;              // number of pin descriptors
  29     KSPIN_DESCRIPTOR *PinDescriptors;        // pin descriptors array
  30 }KSAUDIO_DEVICE_ENTRY, *PKSAUDIO_DEVICE_ENTRY;
  31
  32 typedef struct
  33 {
  34     KSDEVICE_HEADER KsDeviceHeader;                     // ks streaming header - must always be first item in device extension
  35     PDEVICE_OBJECT PhysicalDeviceObject;                // pdo
  36     PDEVICE_OBJECT NextDeviceObject;                    // lower device object
  37     ULONG NumberOfKsAudioDevices;                       // number of audio devices
  38
  39     LIST_ENTRY KsAudioDeviceList;                       // audio device list
  40     PVOID KsAudioNotificationEntry;                     // ks audio notification hook
  41     PVOID EchoCancelNotificationEntry;                  // ks echo cancel notification hook
  42     KSPIN_LOCK Lock;                                    // audio device list mutex
  43
  44     PFILE_OBJECT KMixerFileObject;                      // mixer file object
  45     HANDLE KMixerHandle;                                // mixer file handle
  46
  47 }SYSAUDIODEVEXT, *PSYSAUDIODEVEXT;
  48
  49 // struct DISPATCH_CONTEXT
  50 //
  51 // This structure is used to dispatch read / write / device io requests
  52 // It is stored in the file object FsContext2 member
  53 // Note: FsContext member is reserved for ks object header
  54
  55 typedef struct
  56 {
  57     KSOBJECT_HEADER ObjectHeader;                        // pin object header
  58     HANDLE Handle;                                       // audio irp pin handle
  59     ULONG PinId;                                         // pin id of device
  60     PKSAUDIO_DEVICE_ENTRY AudioEntry;                 // pointer to audio device entry
  61
  62     HANDLE hMixerPin;                                    // handle to mixer pin
  63 }DISPATCH_CONTEXT, *PDISPATCH_CONTEXT;
  64
  65 typedef struct
  66 {
  67     PIO_WORKITEM WorkItem;
  68     PKSAUDIO_DEVICE_ENTRY DeviceEntry;
  69 }FILTER_WORKER_CONTEXT, *PFILTER_WORKER_CONTEXT;
  70
  71 typedef struct
  72 {
  73     PIRP Irp;
  74     IO_STATUS_BLOCK StatusBlock;
  75 }COMPLETION_CONTEXT, *PCOMPLETION_CONTEXT;
  76
  77
  78
  79 NTSTATUS
  80 SysAudioAllocateDeviceHeader(
  81     IN SYSAUDIODEVEXT *DeviceExtension);
  82
  83 NTSTATUS
  84 SysAudioRegisterDeviceInterfaces(
  85     IN PDEVICE_OBJECT DeviceObject);
  86
  87 NTSTATUS
  88 SysAudioRegisterNotifications(
  89     IN PDRIVER_OBJECT  DriverObject,
  90     IN PDEVICE_OBJECT DeviceObject);
  91
  92 NTSTATUS
  93 SysAudioHandleProperty(
  94     PDEVICE_OBJECT DeviceObject,
  95     PIRP Irp);
  96
  97 NTSTATUS
  98 SysAudioOpenKMixer(
  99     IN SYSAUDIODEVEXT *DeviceExtension);
 100
 101 NTSTATUS
 102 OpenDevice(
 103     IN PUNICODE_STRING DeviceName,
 104     IN PHANDLE HandleOut,
 105     IN PFILE_OBJECT * FileObjectOut);
 106
 107 PKSAUDIO_DEVICE_ENTRY
 108 GetListEntry(
 109     IN PLIST_ENTRY Head,
 110     IN ULONG Index);
 111
 112 NTSTATUS
 113 NTAPI
 114 DispatchCreateSysAudioPin(
 115     IN  PDEVICE_OBJECT DeviceObject,
 116     IN  PIRP Irp);
 117
 118 ULONG
 119 GetDeviceCount(
 120     PSYSAUDIODEVEXT DeviceExtension,
 121     BOOL WaveIn);
 122
 123 NTSTATUS
 124 GetPinInstanceCount(
 125     PKSAUDIO_DEVICE_ENTRY Entry,
 126     PKSPIN_CINSTANCES PinInstances,
 127     PKSPIN_CONNECT PinConnect);
 128
 129 NTSTATUS
 130 ComputeCompatibleFormat(
 131     IN PKSAUDIO_DEVICE_ENTRY Entry,
 132     IN ULONG PinId,
 133     IN PKSDATAFORMAT_WAVEFORMATEX ClientFormat,
 134     OUT PKSDATAFORMAT_WAVEFORMATEX MixerFormat);