reactos/drivers/usb/usbehci/usbehci.cpp

   1 /*
   2  * PROJECT:     ReactOS Universal Serial Bus Bulk Enhanced Host Controller Interface
   3  * LICENSE:     GPL - See COPYING in the top level directory
   4  * FILE:        drivers/usb/usbehci/usbehci.cpp
   5  * PURPOSE:     USB EHCI device driver.
   6  * PROGRAMMERS:
   7  *              Michael Martin (michael.martin@reactos.org)
   8  *              Johannes Anderwald (johannes.anderwald@reactos.org)
   9  */
  10
  11 #include "usbehci.h"
  12
  13 //
  14 // driver verifier
  15 //
  16 DRIVER_ADD_DEVICE EHCI_AddDevice;
  17
  18 NTSTATUS
  19 NTAPI
  20 EHCI_AddDevice(
  21     PDRIVER_OBJECT DriverObject,
  22     PDEVICE_OBJECT PhysicalDeviceObject)
  23 {
  24     NTSTATUS Status;
  25     PHCDCONTROLLER HcdController;
  26
  27     DPRINT1("EHCI_AddDevice\n");
  28
  29     /* first create the controller object */
  30     Status = CreateHCDController(&HcdController);
  31     if (!NT_SUCCESS(Status))
  32     {
  33         /* failed to create hcd */
  34         DPRINT1("AddDevice: Failed to create hcd with %x\n", Status);
  35         return Status;
  36     }
  37
  38     /* initialize the hcd */
  39     Status = HcdController->Initialize(NULL, // FIXME
  40                                        DriverObject,
  41                                        PhysicalDeviceObject);
  42
  43     /* check for success */
  44     if (!NT_SUCCESS(Status))
  45     {
  46         /* failed to initialize device */
  47         DPRINT1("AddDevice: failed to initialize\n");
  48
  49         /* release object */
  50         HcdController->Release();
  51     }
  52
  53     return Status;
  54
  55 }
  56
  57 NTSTATUS
  58 NTAPI
  59 EHCI_Dispatch(
  60     PDEVICE_OBJECT DeviceObject,
  61     PIRP Irp)
  62 {
  63     PCOMMON_DEVICE_EXTENSION DeviceExtension;
  64     PIO_STACK_LOCATION IoStack;
  65     NTSTATUS Status;
  66
  67     //
  68     // get common device extension
  69     //
  70     DeviceExtension = (PCOMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
  71
  72     //
  73     // get current stack location
  74     //
  75     IoStack = IoGetCurrentIrpStackLocation(Irp);
  76
  77     //
  78     // sanity checks
  79     //
  80     PC_ASSERT(DeviceExtension->Dispatcher);
  81
  82     switch(IoStack->MajorFunction)
  83     {
  84         case IRP_MJ_PNP:
  85         {
  86             //
  87             // dispatch pnp
  88             //
  89             return DeviceExtension->Dispatcher->HandlePnp(DeviceObject, Irp);
  90         }
  91
  92         case IRP_MJ_POWER:
  93         {
  94             //
  95             // dispatch pnp
  96             //
  97             return DeviceExtension->Dispatcher->HandlePower(DeviceObject, Irp);
  98         }
  99         case IRP_MJ_INTERNAL_DEVICE_CONTROL:
 100         case IRP_MJ_DEVICE_CONTROL:
 101         {
 102             //
 103             // dispatch pnp
 104             //
 105             return DeviceExtension->Dispatcher->HandleDeviceControl(DeviceObject, Irp);
 106         }
 107         default:
 108         {
 109             DPRINT1("EHCI_Dispatch> Major %lu Minor %lu unhandeled\n", IoStack->MajorFunction, IoStack->MinorFunction);
 110             Status = STATUS_SUCCESS;
 111         }
 112     }
 113
 114     //
 115     // complete request
 116     //
 117     Irp->IoStatus.Information = 0;
 118     Irp->IoStatus.Status = Status;
 119     IoCompleteRequest(Irp, IO_NO_INCREMENT);
 120
 121     return Status;
 122 }
 123
 124 extern
 125 "C"
 126 NTSTATUS
 127 NTAPI
 128 DriverEntry(
 129     PDRIVER_OBJECT DriverObject,
 130     PUNICODE_STRING RegistryPath)
 131 {
 132
 133     /* initialize driver object*/
 134     DriverObject->DriverExtension->AddDevice = EHCI_AddDevice;
 135
 136     DriverObject->MajorFunction[IRP_MJ_CREATE] = EHCI_Dispatch;
 137     DriverObject->MajorFunction[IRP_MJ_CLOSE] = EHCI_Dispatch;
 138     DriverObject->MajorFunction[IRP_MJ_CLEANUP] = EHCI_Dispatch;
 139     DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = EHCI_Dispatch;
 140     DriverObject->MajorFunction[IRP_MJ_INTERNAL_DEVICE_CONTROL] = EHCI_Dispatch;
 141     DriverObject->MajorFunction[IRP_MJ_PNP] = EHCI_Dispatch;
 142
 143     return STATUS_SUCCESS;
 144 }