drivers/wdm/audio/drivers/mpu401/adapter.cpp

   1 /*
   2     ReactOS Operating System
   3     MPU401 Example KS Driver
   4
   5     AUTHORS:
   6         Andrew Greenwood
   7
   8     NOTES:
   9         This is an example MPU401 driver. You can use DirectMusic instead with
  10         this, by changing the CLSIDs accordingly.
  11 */
  12
  13 #define MAX_MINIPORTS 1
  14
  15 #define PUT_GUIDS_HERE
  16
  17 #define INITGUID
  18 #include <ntddk.h>
  19 #include <debug.h>
  20
  21 #include <portcls.h>
  22
  23 extern "C"
  24 NTSTATUS
  25 StartDevice(
  26     IN  PDEVICE_OBJECT pDeviceObject,
  27     IN  PIRP pIrp,
  28     IN  PRESOURCELIST ResourceList)
  29 {
  30     DPRINT1("MPU401_KS StartDevice called\n");
  31
  32     if ( ! ResourceList )
  33         return STATUS_INVALID_PARAMETER;
  34
  35     if ( ResourceList->NumberOfEntries() == 0 )
  36     {
  37         return STATUS_INSUFFICIENT_RESOURCES;
  38     }
  39
  40     DPRINT1("Sufficient resources available :)\n");
  41
  42     PPORT port;
  43     PMINIPORT miniport;
  44
  45     NTSTATUS status;
  46
  47     DPRINT1("Calling PcNewPort with CLSID_PortMidi\n");
  48     status = PcNewPort(&port, CLSID_PortMidi);
  49
  50     if ( ! NT_SUCCESS(status) )
  51     {
  52         DPRINT("PcNewPort FAILED with status 0x%08x\n", status);
  53         return status;
  54     }
  55
  56     DPRINT1("Calling PcNewMiniport with CLSID_MiniportDriverUart\n");
  57     status = PcNewMiniport(&miniport, CLSID_MiniportDriverUart);
  58
  59     if ( ! NT_SUCCESS(status) )
  60     {
  61         DPRINT1("PcNewMiniport FAILED with status 0x%08x\n", status);
  62         return status;
  63     }
  64
  65     DPRINT1("Calling Init of port object\n");
  66     status = port->Init(pDeviceObject, pIrp, miniport, NULL, ResourceList);
  67
  68     if ( ! NT_SUCCESS(status) )
  69     {
  70         DPRINT1("Init FAILED with status 0x%08x\n", status);
  71         return status;
  72     }
  73
  74     DPRINT1("Registering subdevice via PcRegisterSubdevice\n");
  75     status = PcRegisterSubdevice(pDeviceObject, L"Uart", port);
  76
  77     if ( ! NT_SUCCESS(status) )
  78     {
  79         /* just print an error here */
  80         DPRINT1("PcRegisterSubdevice FAILED with status 0x%08x\n", status);
  81     }
  82
  83     miniport->Release();
  84     port->Release();
  85
  86     DPRINT1("Device started\n");
  87
  88     return status;
  89 }
  90
  91
  92 extern "C"
  93 NTSTATUS
  94 AddDevice(
  95     IN  PVOID Context1,
  96     IN  PVOID Context2)
  97 {
  98     DPRINT1("MPU401_KS AddDevice called, redirecting to PcAddAdapterDevice\n");
  99     return PcAddAdapterDevice((PDRIVER_OBJECT) Context1,
 100                               (PDEVICE_OBJECT) Context2,
 101                               StartDevice,
 102                               MAX_MINIPORTS,
 103                               0);
 104 }
 105
 106 extern "C"
 107 {
 108
 109 NTSTATUS NTAPI
 110 DriverEntry(
 111     IN  PDRIVER_OBJECT Context1,
 112     IN  PUNICODE_STRING Context2)
 113 {
 114     PDEVICE_OBJECT DeviceObject;
 115     UNICODE_STRING DeviceName = RTL_CONSTANT_STRING(L"\\Device\\MPU401Static");
 116
 117 //    KeBugCheck(0x0000007F);
 118     DPRINT1("MPU401_KS DriverEntry called, redirecting to PcInitializeAdapterDriver\n");
 119
 120     NTSTATUS status = PcInitializeAdapterDriver((PDRIVER_OBJECT) Context1,
 121                                      (PUNICODE_STRING) Context2,
 122                                      (PDRIVER_ADD_DEVICE) AddDevice);
 123     DPRINT1("Result was 0x%08x\n", status);
 124
 125     /* Create a device (this will be handled by PnP manager really but we fake for now */
 126
 127 /*
 128     DPRINT1("Creating device\n");
 129     status = IoCreateDevice(Context1,
 130                             0,
 131                             &DeviceName,
 132                             FILE_DEVICE_SOUND,
 133                             0,
 134                             FALSE,
 135                             &DeviceObject);
 136
 137     DPRINT1("Result was 0x%08x\n", status);
 138 */
 139
 140     return status;
 141 };
 142
 143 }