1284neg.h

来自「WinCE 3.0 BSP, 包含Inter SA1110, Intel_815」· C头文件 代码 · 共 44 行

/*++
THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
PARTICULAR PURPOSE.
Copyright (c) 1995-2000 Microsoft Corporation.  All rights reserved.

Module Name:  

1284neg.h

Abstract:

	Negotiation signals definitions and function declarations


Notes: 


--*/

//---------------------------------------------------------------------------
// Constant definitions
//---------------------------------------------------------------------------
#define H_INITCONTROL  0xEC    //  1110 1100   1284 Active LO, SelectIn LO

// Termination (out to dcr/control register)
#define H_STATE22      0xEC    //  1110 1100   SelectIn Lo, AutoFd Hi

#define ECP_DSR5_MASK       0x20
#define PE_STATE40          0x00

//---------------------------------------------------------------------------
// Function prototypes
//---------------------------------------------------------------------------
BOOL  NegotiateChannel(PPortInformation PortObj, BOOL bRequestDeviceID);
VOID  TerminateChannel(PPortInformation PortObj);
DWORD Nibble_Connect(PPortInformation PortObj, BYTE bExtenByte);
DWORD ECP_Connect(PPortInformation PortObj, BYTE bExtenByte);
BOOL Reverse2Forward (PPortInformation PortObj);
VOID ReadIDString (PPortInformation PortObj);