📄 1284neg.h
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/*++
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) 1995-1998 Microsoft Corporation
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);
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