154 lines
3.3 KiB
C
154 lines
3.3 KiB
C
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/*++
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Copyright (C) Microsoft Corporation, 1993 - 1998
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Module Name:
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epp.c
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Abstract:
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This module contains the common code to perform all EPP related tasks
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for EPP Software and EPP Hardware modes.
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Author:
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Don Redford - July 29, 1998
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Environment:
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Kernel mode
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Revision History :
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--*/
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#include "pch.h"
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NTSTATUS
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ParEppSetAddress(
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IN PDEVICE_EXTENSION Extension,
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IN UCHAR Address
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);
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NTSTATUS
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ParEppSetAddress(
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IN PDEVICE_EXTENSION Extension,
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IN UCHAR Address
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)
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/*++
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Routine Description:
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Sets an EPP Address.
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Arguments:
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Extension - Supplies the device extension.
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Address - The bus address to be set.
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Return Value:
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None.
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--*/
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{
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PUCHAR Controller;
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// LARGE_INTEGER Start;
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// LARGE_INTEGER End;
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// UCHAR dsr;
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UCHAR dcr;
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// dvdr
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ParDump2(PARINFO, ("ParEppSetAddress: Entering\n"));
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Controller = Extension->Controller;
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Extension->CurrentPhase = PHASE_FORWARD_XFER;
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dcr = GetControl (Controller);
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WRITE_PORT_UCHAR(Controller + DATA_OFFSET, Address);
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// KeStallExecutionProcessor(1);
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//
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// Event 56
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//
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dcr = UPDATE_DCR( dcr, DONT_CARE, DONT_CARE, DONT_CARE,
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INACTIVE, DONT_CARE, INACTIVE );
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StoreControl (Controller, dcr);
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//
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// Event 58
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//
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if (!CHECK_DSR(Controller,
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ACTIVE, DONT_CARE, DONT_CARE,
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DONT_CARE, DONT_CARE,
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DEFAULT_RECEIVE_TIMEOUT)) {
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//
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// Return the device to Idle.
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//
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dcr = UPDATE_DCR( dcr, DONT_CARE, DONT_CARE, DONT_CARE,
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ACTIVE, DONT_CARE, INACTIVE );
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StoreControl (Controller, dcr);
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// KeStallExecutionProcessor(1);
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dcr = UPDATE_DCR( dcr, DONT_CARE, DONT_CARE, DONT_CARE,
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ACTIVE, DONT_CARE, ACTIVE );
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StoreControl (Controller, dcr);
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Extension->CurrentPhase = PHASE_FORWARD_IDLE;
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// dvdr
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ParDump2(PARINFO, ("ParEppSetAddress: Leaving with IO Device Error Event 58\n"));
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return STATUS_IO_DEVICE_ERROR;
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}
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//
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// Event 59
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//
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dcr = UPDATE_DCR( dcr, DONT_CARE, DONT_CARE, DONT_CARE,
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ACTIVE, DONT_CARE, INACTIVE );
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StoreControl (Controller, dcr);
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//
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// Event 60
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//
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if (!CHECK_DSR(Controller,
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INACTIVE, DONT_CARE, DONT_CARE,
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DONT_CARE, DONT_CARE,
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DEFAULT_RECEIVE_TIMEOUT)) {
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dcr = UPDATE_DCR( dcr, DONT_CARE, DONT_CARE, DONT_CARE,
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ACTIVE, DONT_CARE, ACTIVE );
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StoreControl (Controller, dcr);
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Extension->CurrentPhase = PHASE_FORWARD_IDLE;
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// dvdr
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ParDump2(PARINFO, ("ParEppSetAddress: Leaving with IO Device Error Event 60\n"));
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return STATUS_IO_DEVICE_ERROR;
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}
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//
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// Event 61
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//
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dcr = UPDATE_DCR( dcr, DONT_CARE, DONT_CARE, DONT_CARE,
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ACTIVE, DONT_CARE, ACTIVE );
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StoreControl (Controller, dcr);
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Extension->CurrentPhase = PHASE_FORWARD_IDLE;
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// dvdr
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ParDump2(PARINFO, ("ParEppSetAddress: Leaving with STATUS_SUCCESS\n"));
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return STATUS_SUCCESS;
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}
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