hubchild.cpp File Reference

#include "usbhub3.h"
#include <debug.h>

Include dependency graph for hubchild.cpp:

Go to the source code of this file.

Macros
#define	NDEBUG
#define	DEVICE_ENUM_RETRY_TIME   500
#define	DEVICE_POST_RESET_TIME_20   32
#define	DEVICE_POST_RESET_TIME_LONG   100
#define	DEVICE_POST_RESET_TIME_30   15
#define	DEVICE_POST_ADDRESS_TIME   10
#define	DEVICE_DUPLICATE_POLL_TIME   500
#define	DEVICE_DEFAULT_LANGUAGE   0x0409

Functions
static VOID NTAPI	HubDropDeviceObject (_Inout_ WDFOBJECT *Object)
static VOID NTAPI	HubFreeIfPresent (_In_opt_ PVOID Buffer)
static NTSTATUS NTAPI	HubCreateDeviceRequest (_In_ HubPort *Port, _Out_ WDFREQUEST *Request)

Variables
static const char	HubTagDeviceCreate [] = "hub child create"
static const char	HubTagDevice [] = "hub child"

Macro Definition Documentation

DEVICE_DEFAULT_LANGUAGE

#define DEVICE_DEFAULT_LANGUAGE   0x0409

Definition at line 26 of file hubchild.cpp.

DEVICE_DUPLICATE_POLL_TIME

#define DEVICE_DUPLICATE_POLL_TIME   500

Definition at line 23 of file hubchild.cpp.

DEVICE_ENUM_RETRY_TIME

#define DEVICE_ENUM_RETRY_TIME   500

Definition at line 18 of file hubchild.cpp.

DEVICE_POST_ADDRESS_TIME

#define DEVICE_POST_ADDRESS_TIME   10

Definition at line 22 of file hubchild.cpp.

DEVICE_POST_RESET_TIME_20

#define DEVICE_POST_RESET_TIME_20   32

Definition at line 19 of file hubchild.cpp.

DEVICE_POST_RESET_TIME_30

#define DEVICE_POST_RESET_TIME_30   15

Definition at line 21 of file hubchild.cpp.

DEVICE_POST_RESET_TIME_LONG

#define DEVICE_POST_RESET_TIME_LONG   100

Definition at line 20 of file hubchild.cpp.

NDEBUG

#define NDEBUG

Definition at line 10 of file hubchild.cpp.

Function Documentation

HubCreateDeviceRequest()

static NTSTATUS NTAPI HubCreateDeviceRequest ( _In_ HubPort *  Port, _Out_ WDFREQUEST *  Request  )

static

Definition at line 75 of file hubchild.cpp.

{
    WDF_OBJECT_ATTRIBUTES Attributes;
    NTSTATUS Status;
 
    WDF_OBJECT_ATTRIBUTES_INIT(&Attributes);
    Attributes.ParentObject = Port->m_Object;
 
    Status = WdfRequestCreate(&Attributes, WdfDeviceGetIoTarget(Port->m_Hub->m_Device), Request);
    if (NT_SUCCESS(Status))
        WdfObjectReferenceWithTag(*Request, (PVOID)HubTagDevice);
 
    return Status;
}

Referenced by HubChild::Create().

HubDropDeviceObject()

static VOID NTAPI HubDropDeviceObject ( _Inout_ WDFOBJECT *  Object )

static

Deletes a device owned object and drops the device's own reference on it.

Definition at line 51 of file hubchild.cpp.

{
    if (*Object == NULL)
        return;
 
    WdfObjectDelete(*Object);
    WdfObjectDereferenceWithTag(*Object, (PVOID)HubTagDevice);
    *Object = NULL;
}

HubFreeIfPresent()

static VOID NTAPI HubFreeIfPresent ( _In_opt_ PVOID  Buffer )

static

Definition at line 65 of file hubchild.cpp.

{
    if (Buffer != NULL)
        ExFreePoolWithTag(Buffer, HUB_TAG_DEVICE);
}

Variable Documentation

HubTagDevice

const char HubTagDevice[] = "hub child"

static

Definition at line 15 of file hubchild.cpp.

Referenced by HubChild::Create(), DeviceMachine::DereferencePort(), HubCreateDeviceRequest(), HubDropDeviceObject(), and DeviceMachine::ReferencePort().

HubTagDeviceCreate

const char HubTagDeviceCreate[] = "hub child create"

static

Definition at line 14 of file hubchild.cpp.

Referenced by HubChild::Create().