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virtio.c
executable file
·68 lines (57 loc) · 1.85 KB
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virtio.c
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/*
* Copyright (C) 2014-2015 Red Hat, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
* Refer to the LICENSE file for full details of the license.
*
* Written By: Gal Hammer <ghammer@redhat.com>
*
*/
#include "viorng.h"
#include "virtio.tmh"
static void NoDebugPrintFunc(const char *format, ...)
{
UNREFERENCED_PARAMETER(format);
}
typedef void (*tDebugPrintFunc)(const char *format, ...);
tDebugPrintFunc VirtioDebugPrintProc = NoDebugPrintFunc;
int virtioDebugLevel = 0;
int bDebugPrint = 0;
u32 ReadVirtIODeviceRegister(ULONG_PTR ulRegister)
{
return READ_PORT_ULONG((PULONG)(ulRegister));
}
void WriteVirtIODeviceRegister(ULONG_PTR ulRegister, u32 ulValue)
{
WRITE_PORT_ULONG((PULONG)(ulRegister), (ULONG)(ulValue));
}
u8 ReadVirtIODeviceByte(ULONG_PTR ulRegister)
{
return READ_PORT_UCHAR((PUCHAR)(ulRegister));
}
void WriteVirtIODeviceByte(ULONG_PTR ulRegister, u8 bValue)
{
WRITE_PORT_UCHAR((PUCHAR)(ulRegister), (UCHAR)(bValue));
}
u16 ReadVirtIODeviceWord(ULONG_PTR ulRegister)
{
return READ_PORT_USHORT((PUSHORT)(ulRegister));
}
void WriteVirtIODeviceWord(ULONG_PTR ulRegister, u16 wValue)
{
WRITE_PORT_USHORT((PUSHORT)(ulRegister), (USHORT)(wValue));
}