mirror of
https://github.com/arehnman/yttrium-virtio-gpu.git
synced 2026-11-07 02:06:32 +00:00
Yuri Benditovich
acd56daea2
VirtIO printouts did not appear when WPP enabled. Fixed. Signed-off-by: Yuri Benditovich <[email protected]>
122 lines
4.4 KiB
C
Executable File
122 lines
4.4 KiB
C
Executable File
/*
|
|
* Main driver file containing DriverEntry and driver related functions
|
|
*
|
|
* Copyright (c) 2010-2017 Red Hat, Inc.
|
|
*
|
|
* Author(s):
|
|
* Vadim Rozenfeld <[email protected]>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met :
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and / or other materials provided with the distribution.
|
|
* 3. Neither the names of the copyright holders nor the names of their contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "precomp.h"
|
|
#include "vioser.h"
|
|
|
|
#if defined(EVENT_TRACING)
|
|
#include "Driver.tmh"
|
|
#endif
|
|
|
|
DRIVER_INITIALIZE DriverEntry;
|
|
|
|
// Context cleanup callbacks generally run at IRQL <= DISPATCH_LEVEL but
|
|
// WDFDRIVER context cleanup is guaranteed to run at PASSIVE_LEVEL.
|
|
// Annotate the prototype to make static analysis happy.
|
|
EVT_WDF_OBJECT_CONTEXT_CLEANUP _IRQL_requires_(PASSIVE_LEVEL) VIOSerialEvtDriverContextCleanup;
|
|
|
|
#ifdef ALLOC_PRAGMA
|
|
#pragma alloc_text (INIT, DriverEntry)
|
|
#pragma alloc_text (PAGE, VIOSerialEvtDriverContextCleanup)
|
|
#endif
|
|
|
|
|
|
|
|
NTSTATUS DriverEntry(IN PDRIVER_OBJECT DriverObject,
|
|
IN PUNICODE_STRING RegistryPath)
|
|
{
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|
WDF_DRIVER_CONFIG config;
|
|
WDF_OBJECT_ATTRIBUTES attributes;
|
|
WDFDRIVER Driver;
|
|
PDRIVER_CONTEXT Context;
|
|
|
|
#if (NTDDI_VERSION > NTDDI_WIN7)
|
|
ExInitializeDriverRuntime(DrvRtPoolNxOptIn);
|
|
#endif
|
|
InitializeDebugPrints(DriverObject, RegistryPath);
|
|
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT,
|
|
"Virtio-Serial driver started...built on %s %s\n", __DATE__, __TIME__);
|
|
|
|
WDF_DRIVER_CONFIG_INIT(&config,VIOSerialEvtDeviceAdd);
|
|
config.DriverPoolTag = VIOSERIAL_DRIVER_MEMORY_TAG;
|
|
|
|
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&attributes, DRIVER_CONTEXT);
|
|
attributes.EvtCleanupCallback = VIOSerialEvtDriverContextCleanup;
|
|
|
|
status = WdfDriverCreate(DriverObject,
|
|
RegistryPath,
|
|
&attributes,
|
|
&config,
|
|
&Driver);
|
|
|
|
if (!NT_SUCCESS(status)) {
|
|
TraceEvents(TRACE_LEVEL_ERROR, DBG_INIT,
|
|
"WdfDriverCreate failed - 0x%x\n", status);
|
|
WPP_CLEANUP(DriverObject);
|
|
return status;
|
|
}
|
|
|
|
Context = GetDriverContext(Driver);
|
|
|
|
// create a lookaside list used for allocating WRITE_BUFFER_ENTRY
|
|
// structures by all devices
|
|
status = WdfLookasideListCreate(WDF_NO_OBJECT_ATTRIBUTES,
|
|
sizeof(WRITE_BUFFER_ENTRY),
|
|
NonPagedPool,
|
|
WDF_NO_OBJECT_ATTRIBUTES,
|
|
VIOSERIAL_DRIVER_MEMORY_TAG,
|
|
&Context->WriteBufferLookaside);
|
|
if (!NT_SUCCESS(status))
|
|
{
|
|
TraceEvents(TRACE_LEVEL_ERROR, DBG_INIT,
|
|
"WdfLookasideListCreate failed - 0x%x\n", status);
|
|
return status;
|
|
}
|
|
|
|
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_PNP, "<-- %s\n", __FUNCTION__);
|
|
return status;
|
|
}
|
|
|
|
VOID
|
|
VIOSerialEvtDriverContextCleanup(
|
|
IN WDFOBJECT Driver
|
|
)
|
|
{
|
|
PAGED_CODE ();
|
|
|
|
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_PNP, "<--> %s\n", __FUNCTION__);
|
|
|
|
WPP_CLEANUP( WdfDriverWdmGetDriverObject((WDFDRIVER)Driver) );
|
|
}
|
|
|