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/******************************************************************************
* dhahelper.c: direct hardware access under Windows NT/2000/XP
* Copyright (c) 2004 Sascha Sommer <saschasommer@freenet.de>.
*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*****************************************************************************/
#ifndef MPLAYER_DHAHELPER_H
#define MPLAYER_DHAHELPER_H
// Define the various device type values. Note that values used by Microsoft
// Corporation are in the range 0-32767, and 32768-65535 are reserved for use
// by customers.
#define FILE_DEVICE_DHAHELPER 0x00008011
// Macro definition for defining IOCTL and FSCTL function control codes.
// Note that function codes 0-2047 are reserved for Microsoft Corporation,
// and 2048-4095 are reserved for customers.
#define DHAHELPER_IOCTL_INDEX 0x810
#define IOCTL_DHAHELPER_MAPPHYSTOLIN CTL_CODE(FILE_DEVICE_DHAHELPER, \
DHAHELPER_IOCTL_INDEX, \
METHOD_BUFFERED, \
FILE_ANY_ACCESS)
#define IOCTL_DHAHELPER_UNMAPPHYSADDR CTL_CODE(FILE_DEVICE_DHAHELPER, \
DHAHELPER_IOCTL_INDEX + 1, \
METHOD_BUFFERED, \
FILE_ANY_ACCESS)
#define IOCTL_DHAHELPER_ENABLEDIRECTIO CTL_CODE(FILE_DEVICE_DHAHELPER, \
DHAHELPER_IOCTL_INDEX + 2, \
METHOD_BUFFERED, \
FILE_ANY_ACCESS)
#define IOCTL_DHAHELPER_DISABLEDIRECTIO CTL_CODE(FILE_DEVICE_DHAHELPER, \
DHAHELPER_IOCTL_INDEX + 3, \
METHOD_BUFFERED, \
FILE_ANY_ACCESS)
#if !defined(__MINGW32__) && !defined(__CYGWIN__)
#pragma pack(1)
typedef struct dhahelper_t {
#else
struct __attribute__((__packed__)) dhahelper_t {
#endif
unsigned int size;
void* base;
void* ptr;
};
typedef struct dhahelper_t dhahelper_t;
#endif /* MPLAYER_DHAHELPER_H */
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