mirror of https://github.com/acidanthera/audk.git
119 lines
2.6 KiB
C
119 lines
2.6 KiB
C
/** @file
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Copyright (c) 2004 - 2007, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module name:
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stop.c
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Abstract:
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Revision history:
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2000-Feb-09 M(f)J Genesis.
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**/
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#include "Snp.h"
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/**
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this routine calls undi to stop the interface and changes the snp state
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@param snp pointer to snp driver structure
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**/
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EFI_STATUS
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pxe_stop (
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SNP_DRIVER *snp
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)
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{
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snp->cdb.OpCode = PXE_OPCODE_STOP;
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snp->cdb.OpFlags = PXE_OPFLAGS_NOT_USED;
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snp->cdb.CPBsize = PXE_CPBSIZE_NOT_USED;
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snp->cdb.DBsize = PXE_DBSIZE_NOT_USED;
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snp->cdb.CPBaddr = PXE_CPBADDR_NOT_USED;
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snp->cdb.DBaddr = PXE_DBADDR_NOT_USED;
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snp->cdb.StatCode = PXE_STATCODE_INITIALIZE;
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snp->cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;
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snp->cdb.IFnum = snp->if_num;
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snp->cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;
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//
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// Issue UNDI command
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//
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DEBUG ((EFI_D_NET, "\nsnp->undi.stop() "));
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(*snp->issue_undi32_command) ((UINT64)(UINTN) &snp->cdb);
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if (snp->cdb.StatCode != PXE_STATCODE_SUCCESS) {
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DEBUG (
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(EFI_D_WARN,
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"\nsnp->undi.stop() %xh:%xh\n",
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snp->cdb.StatCode,
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snp->cdb.StatFlags)
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);
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return EFI_DEVICE_ERROR;
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}
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//
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// Set simple network state to Started and return success.
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//
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snp->mode.State = EfiSimpleNetworkStopped;
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return EFI_SUCCESS;
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}
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/**
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This is the SNP interface routine for stopping the interface.
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This routine basically retrieves snp structure, checks the SNP state and
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calls the pxe_stop routine to actually stop the undi interface
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@param this context pointer
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**/
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EFI_STATUS
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EFIAPI
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snp_undi32_stop (
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IN EFI_SIMPLE_NETWORK_PROTOCOL *this
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)
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{
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SNP_DRIVER *snp;
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EFI_TPL OldTpl;
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EFI_STATUS Status;
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if (this == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (this);
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OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
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switch (snp->mode.State) {
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case EfiSimpleNetworkStarted:
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break;
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case EfiSimpleNetworkStopped:
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Status = EFI_NOT_STARTED;
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goto ON_EXIT;
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default:
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Status = EFI_DEVICE_ERROR;
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goto ON_EXIT;
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}
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Status = pxe_stop (snp);
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ON_EXIT:
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gBS->RestoreTPL (OldTpl);
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return Status;
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}
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