mirror of
https://github.com/arehnman/yttrium-virtio-gpu.git
synced 2026-10-31 02:05:04 +00:00
Yuri Benditovich
13788aef60
They did not appear with ETW. Fixed. Signed-off-by: Yuri Benditovich <[email protected]>
129 lines
3.8 KiB
C
129 lines
3.8 KiB
C
/*
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* This file contains various vioinput driver routines
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*
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* Copyright (c) 2016-2017 Red Hat, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met :
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and / or other materials provided with the distribution.
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* 3. Neither the names of the copyright holders nor the names of their contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "precomp.h"
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#include "vioinput.h"
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#if defined(EVENT_TRACING)
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#include "utils.tmh"
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#endif
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#define TEMP_BUFFER_SIZE 256
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// Global debug printout level and enable\disable flag
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int virtioDebugLevel;
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int bDebugPrint;
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int driverDebugLevel;
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ULONG driverDebugFlags;
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#if defined(COM_DEBUG)
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#define RHEL_DEBUG_PORT ((PUCHAR)0x3F8)
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static void DebugPrintFuncSerial(const char *format, ...)
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{
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char buf[TEMP_BUFFER_SIZE];
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NTSTATUS status;
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size_t len;
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va_list list;
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va_start(list, format);
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status = RtlStringCbVPrintfA(buf, sizeof(buf), format, list);
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if (status == STATUS_SUCCESS)
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{
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len = strlen(buf);
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}
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else
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{
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len = 2;
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buf[0] = 'O';
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buf[1] = '\n';
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}
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if (len)
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{
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WRITE_PORT_BUFFER_UCHAR(RHEL_DEBUG_PORT, (PUCHAR)buf, len);
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WRITE_PORT_UCHAR(RHEL_DEBUG_PORT, '\r');
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}
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va_end(list);
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}
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#endif
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#if defined(PRINT_DEBUG)
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static void DebugPrintFunc(const char *format, ...)
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{
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va_list list;
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va_start(list, format);
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vDbgPrintEx(DPFLTR_DEFAULT_ID, 9 | DPFLTR_MASK, format, list);
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va_end(list);
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}
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#endif
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static void DebugPrintFuncWPP(const char *format, ...)
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{
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char buf[256];
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NTSTATUS status;
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va_list list;
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va_start(list, format);
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status = RtlStringCbVPrintfA(buf, sizeof(buf), format, list);
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if (status == STATUS_SUCCESS)
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{
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TraceEvents(TRACE_LEVEL_WARNING, DBG_HW_ACCESS, "%s", buf);
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}
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va_end(list);
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}
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static void NoDebugPrintFunc(const char *format, ...)
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{
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UNREFERENCED_PARAMETER(format);
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}
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void InitializeDebugPrints(IN PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
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{
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WPP_INIT_TRACING(DriverObject, RegistryPath);
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//TODO - Read nDebugLevel and bDebugPrint from the registry
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#if defined(EVENT_TRACING)
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VirtioDebugPrintProc = DebugPrintFuncWPP;
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#elif defined(PRINT_DEBUG)
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VirtioDebugPrintProc = DebugPrintFunc;
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#elif defined(COM_DEBUG)
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VirtioDebugPrintProc = DebugPrintFuncSerial;
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#else
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VirtioDebugPrintProc = NoDebugPrintFunc;
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#endif
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driverDebugFlags = 0xffffffff;
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UNREFERENCED_PARAMETER(DriverObject);
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UNREFERENCED_PARAMETER(RegistryPath);
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bDebugPrint = 1;
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driverDebugLevel = TRACE_LEVEL_INFORMATION;
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virtioDebugLevel = 1;
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}
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tDebugPrintFunc VirtioDebugPrintProc;
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