misc.c File Reference

#include "usbccgp.h"
#include <debug.h>

Include dependency graph for misc.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
NTSTATUS NTAPI	USBSTOR_SyncForwardIrpCompletionRoutine (PDEVICE_OBJECT DeviceObject, PIRP Irp, PVOID Context)
NTSTATUS	USBCCGP_SyncUrbRequest (IN PDEVICE_OBJECT DeviceObject, OUT PURB UrbRequest)
PVOID	AllocateItem (IN POOL_TYPE PoolType, IN ULONG ItemSize)
VOID	FreeItem (IN PVOID Item)
VOID	DumpFunctionDescriptor (IN PUSBC_FUNCTION_DESCRIPTOR FunctionDescriptor, IN ULONG FunctionDescriptorCount)

Variables
IO_COMPLETION_ROUTINE	SyncForwardIrpCompletionRoutine

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 14 of file misc.c.

Function Documentation

AllocateItem()

PVOID AllocateItem	(	IN POOL_TYPE	PoolType,
		IN ULONG	ItemSize
	)

Definition at line 94 of file misc.c.

{
    /* Allocate, zero and return item */
    return ExAllocatePoolZero(PoolType, ItemSize, USBCCPG_TAG);
}

DumpFunctionDescriptor()

VOID DumpFunctionDescriptor	(	IN PUSBC_FUNCTION_DESCRIPTOR	FunctionDescriptor,
		IN ULONG	FunctionDescriptorCount
	)

Definition at line 111 of file misc.c.

{
    ULONG Index, SubIndex;
 
    DPRINT("FunctionCount %lu\n", FunctionDescriptorCount);
    for (Index = 0; Index < FunctionDescriptorCount; Index++)
    {
        DPRINT("Function %lu\n", Index);
        DPRINT("FunctionNumber %lu\n", FunctionDescriptor[Index].FunctionNumber);
        DPRINT("HardwareId %S\n", FunctionDescriptor[Index].HardwareId.Buffer);
        DPRINT("CompatibleId %S\n", FunctionDescriptor[Index].CompatibleId.Buffer);
        DPRINT("FunctionDescription %wZ\n", &FunctionDescriptor[Index].FunctionDescription);
        DPRINT("NumInterfaces %lu\n", FunctionDescriptor[Index].NumberOfInterfaces);
 
        for(SubIndex = 0; SubIndex < FunctionDescriptor[Index].NumberOfInterfaces; SubIndex++)
        {
            DPRINT(" Index %lu Interface %p\n", SubIndex, FunctionDescriptor[Index].InterfaceDescriptorList[SubIndex]);
            DPRINT(" Index %lu Interface InterfaceNumber %x\n", SubIndex, FunctionDescriptor[Index].InterfaceDescriptorList[SubIndex]->bInterfaceNumber);
            DPRINT(" Index %lu Interface Alternate %x\n", SubIndex, FunctionDescriptor[Index].InterfaceDescriptorList[SubIndex]->bAlternateSetting );
            DPRINT(" Index %lu bLength %x\n", SubIndex, FunctionDescriptor[Index].InterfaceDescriptorList[SubIndex]->bLength);
            DPRINT(" Index %lu bDescriptorType %x\n", SubIndex, FunctionDescriptor[Index].InterfaceDescriptorList[SubIndex]->bDescriptorType);
            DPRINT(" Index %lu bInterfaceNumber %x\n", SubIndex, FunctionDescriptor[Index].InterfaceDescriptorList[SubIndex]->bInterfaceNumber);
            DPRINT(" Index %lu bAlternateSetting %x\n", SubIndex, FunctionDescriptor[Index].InterfaceDescriptorList[SubIndex]->bAlternateSetting);
            DPRINT(" Index %lu bNumEndpoints %x\n", SubIndex, FunctionDescriptor[Index].InterfaceDescriptorList[SubIndex]->bNumEndpoints);
            DPRINT(" Index %lu bInterfaceClass %x\n", SubIndex, FunctionDescriptor[Index].InterfaceDescriptorList[SubIndex]->bInterfaceClass);
            DPRINT(" Index %lu bInterfaceSubClass %x\n", SubIndex, FunctionDescriptor[Index].InterfaceDescriptorList[SubIndex]->bInterfaceSubClass);
            DPRINT(" Index %lu bInterfaceProtocol %x\n", SubIndex, FunctionDescriptor[Index].InterfaceDescriptorList[SubIndex]->bInterfaceProtocol);
            DPRINT(" Index %lu iInterface %x\n", SubIndex, FunctionDescriptor[Index].InterfaceDescriptorList[SubIndex]->iInterface);
        }
    }
}

Referenced by FDO_StartDevice().

FreeItem()

VOID FreeItem

(

IN PVOID

Item

)

Definition at line 103 of file misc.c.

{
    /* Free item */
    ExFreePoolWithTag(Item, USBCCPG_TAG);
}

USBCCGP_SyncUrbRequest()

NTSTATUS USBCCGP_SyncUrbRequest	(	IN PDEVICE_OBJECT	DeviceObject,
		OUT PURB	UrbRequest
	)

Definition at line 35 of file misc.c.

{
    PIRP Irp;
    PIO_STACK_LOCATION IoStack;
    KEVENT Event;
    NTSTATUS Status;
 
    /* Allocate irp */
    Irp = IoAllocateIrp(DeviceObject->StackSize, FALSE);
    if (!Irp)
    {
        /* No memory */
        return STATUS_INSUFFICIENT_RESOURCES;
    }
 
    /* Initialize event */
    KeInitializeEvent(&Event, NotificationEvent, FALSE);
 
    /* Get next stack location */
    IoStack = IoGetNextIrpStackLocation(Irp);
 
    /* Initialize stack location */
    IoStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
    IoStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_INTERNAL_USB_SUBMIT_URB;
    IoStack->Parameters.Others.Argument1 = (PVOID)UrbRequest;
    IoStack->Parameters.DeviceIoControl.InputBufferLength = UrbRequest->UrbHeader.Length;
    Irp->IoStatus.Status = STATUS_SUCCESS;
 
    /* Setup completion routine */
    IoSetCompletionRoutine(Irp,
                           USBSTOR_SyncForwardIrpCompletionRoutine,
                           &Event,
                           TRUE,
                           TRUE,
                           TRUE);
 
    /* Call driver */
    Status = IoCallDriver(DeviceObject, Irp);
 
    /* Check if request is pending */
    if (Status == STATUS_PENDING)
    {
        /* Wait for completion */
        KeWaitForSingleObject(&Event, Executive, KernelMode, FALSE, NULL);
 
        /* Update status */
        Status = Irp->IoStatus.Status;
    }
 
    /* Free irp */
    IoFreeIrp(Irp);
 
    /* Done */
    return Status;
}

Referenced by FDO_CloseConfiguration(), USBCCGP_GetDescriptor(), USBCCGP_PDOSelectConfiguration(), USBCCGP_SelectConfiguration(), and USBCCGP_SelectInterface().

USBSTOR_SyncForwardIrpCompletionRoutine()

NTSTATUS NTAPI USBSTOR_SyncForwardIrpCompletionRoutine	(	PDEVICE_OBJECT	DeviceObject,
		PIRP	Irp,
		PVOID	Context
	)

Definition at line 22 of file misc.c.

{
    if (Irp->PendingReturned)
    {
        KeSetEvent((PKEVENT)Context, IO_NO_INCREMENT, FALSE);
    }
    return STATUS_MORE_PROCESSING_REQUIRED;
}

Referenced by USBCCGP_SyncUrbRequest(), USBSTOR_SyncForwardIrp(), and USBSTOR_SyncUrbRequest().

Variable Documentation

SyncForwardIrpCompletionRoutine

IO_COMPLETION_ROUTINE SyncForwardIrpCompletionRoutine

Definition at line 18 of file misc.c.