ioctl.h

一个图形显示芯片s1d13505的应用程序

//===========================================================================
//	IOCTL.H - IOCTLs for the S1D13xxx PCI board interface driver
//---------------------------------------------------------------------------
//	Copyright (c) 2002 Epson Research and Development, Inc.
//	All Rights Reserved.
//---------------------------------------------------------------------------
//
//	The standard evaluation board uses a PCI interface. Win32 applications
//	do not have sufficient persmission to access the dispaly controller or
//	display memory directly. For a Win32 application to access the display
//	controller the PCI driver S1D13xxx is used.	S1D13xxx performs two
//	functions. First it queries the PCI interface and locates our eval
//	board, second when our eval board is found it translates the physical
//	(PCI) address to a logical address in the callers address space. The
//	caller can now access the dipsplay controller and memory directly.
//
//	NOTE:	one by product of the way S1D13xxx works is that software
//			can access eval boards with fixed addresses (i.e. ISA) by
//			specifying the physical address to the driver. In this case
//			(when the address specified is non-zero) the S1D13xxx driver
//			bypasses the PCI enumeration step and simply provides the
//			physical to logical address translation.
//
//	The IOCTL code contains a command identifier, plus other information about
//	the device, the type of access with which the file must have been opened,
//	and the type of buffering.
//===========================================================================
// (Tabs set to 4 spaces)

#define SED_TYPE FILE_DEVICE_CONTROLLER 

// The IOCTL function codes from 0x800 to 0xFFF are for customer use.

#define IOCTL_SED_QUERY_NUMBER_OF_PCI_BOARDS \
	CTL_CODE( SED_TYPE, 0x900, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define IOCTL_SED_MAP_PCI_BOARD \
	CTL_CODE( SED_TYPE, 0x901, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define IOCTL_SED_MAP_PHYSICAL_MEMORY \
	CTL_CODE( SED_TYPE, 0x902, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define IOCTL_SED_UNMAP_LINEAR_MEMORY \
	CTL_CODE( SED_TYPE, 0x903, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define IOCTL_SED_HOOK_ISR_CALLBACK \
    CTL_CODE( SED_TYPE, 0x904, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define IOCTL_SED_UNHOOK_ISR_CALLBACK \
    CTL_CODE( SED_TYPE, 0x905, METHOD_BUFFERED, FILE_ANY_ACCESS)