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* Create a branch for USB experiments.

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svn path=/branches/usb-experiments/; revision=72629
This commit is contained in:
Amine Khaldi 2016-09-09 15:11:19 +00:00
parent 28d8ba0d3e
commit 0ee830d7a4
23049 changed files with 0 additions and 1313991 deletions
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73
sdk/include/ddk/ioaccess.h Normal file
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/*
* ioaccess.h
*
* Windows Device Driver Kit
*
* This file is part of the w32api package.
*
* THIS SOFTWARE IS NOT COPYRIGHTED
*
* This source code is offered for use in the public domain. You may
* use, modify or distribute it freely.
*
* This code is distributed in the hope that it will be useful but
* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
* DISCLAIMED. This includes but is not limited to warranties of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
*/
#ifndef __IOACCESS_H
#define __IOACCESS_H
#ifdef __cplusplus
extern "C" {
#endif
#define H2I(p) PtrToUshort(p)
#ifndef NO_PORT_MACROS
#if defined(_X86_) || defined(_M_AMD64)
#define READ_REGISTER_UCHAR(r) (*(volatile UCHAR *)(r))
#define READ_REGISTER_USHORT(r) (*(volatile USHORT *)(r))
#define READ_REGISTER_ULONG(r) (*(volatile ULONG *)(r))
#define WRITE_REGISTER_UCHAR(r, v) (*(volatile UCHAR *)(r) = (v))
#define WRITE_REGISTER_USHORT(r, v) (*(volatile USHORT *)(r) = (v))
#define WRITE_REGISTER_ULONG(r, v) (*(volatile ULONG *)(r) = (v))
#define READ_PORT_UCHAR(p) (UCHAR)(__inbyte (H2I(p)))
#define READ_PORT_USHORT(p) (USHORT)(__inword (H2I(p)))
#define READ_PORT_ULONG(p) (ULONG)(__indword (H2I(p)))
#define WRITE_PORT_UCHAR(p, v) __outbyte (H2I(p), (v))
#define WRITE_PORT_USHORT(p, v) __outword (H2I(p), (v))
#define WRITE_PORT_ULONG(p, v) __outdword (H2I(p), (v))
#define MEMORY_BARRIER()
#elif defined(_PPC_) || defined(_MIPS_) || defined(_ARM_)
#define READ_REGISTER_UCHAR(r) (*(volatile UCHAR * const)(r))
#define READ_REGISTER_USHORT(r) (*(volatile USHORT * const)(r))
#define READ_REGISTER_ULONG(r) (*(volatile ULONG * const)(r))
#define WRITE_REGISTER_UCHAR(r, v) (*(volatile UCHAR * const)(r) = (v))
#define WRITE_REGISTER_USHORT(r, v) (*(volatile USHORT * const)(r) = (v))
#define WRITE_REGISTER_ULONG(r, v) (*(volatile ULONG * const)(r) = (v))
#define READ_PORT_UCHAR(r) READ_REGISTER_UCHAR(r)
#define READ_PORT_USHORT(r) READ_REGISTER_USHORT(r)
#define READ_PORT_ULONG(r) READ_REGISTER_ULONG(r)
#define WRITE_PORT_UCHAR(p, v) WRITE_REGISTER_UCHAR(p, (UCHAR) (v))
#define WRITE_PORT_USHORT(p, v) WRITE_REGISTER_USHORT(p, (USHORT) (v))
#define WRITE_PORT_ULONG(p, v) WRITE_REGISTER_ULONG(p, (ULONG) (v))
#else
#error Unsupported architecture
#endif
#endif /* NO_PORT_MACROS */
#ifdef __cplusplus
}
#endif
#endif /* __IOACCESS_H */