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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module name:
stop.c
Abstract:
Revision history:
2000-Feb-09 M(f)J Genesis.
--*/
#include "Snp.h"
EFI_STATUS
pxe_stop (
SNP_DRIVER *snp
)
/*++
Routine Description:
this routine calls undi to stop the interface and changes the snp state
Arguments:
snp - pointer to snp driver structure
Returns:
--*/
{
snp->cdb.OpCode = PXE_OPCODE_STOP;
snp->cdb.OpFlags = PXE_OPFLAGS_NOT_USED;
snp->cdb.CPBsize = PXE_CPBSIZE_NOT_USED;
snp->cdb.DBsize = PXE_DBSIZE_NOT_USED;
snp->cdb.CPBaddr = PXE_CPBADDR_NOT_USED;
snp->cdb.DBaddr = PXE_DBADDR_NOT_USED;
snp->cdb.StatCode = PXE_STATCODE_INITIALIZE;
snp->cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;
snp->cdb.IFnum = snp->if_num;
snp->cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;
//
// Issue UNDI command
//
DEBUG ((EFI_D_NET, "\nsnp->undi.stop() "));
(*snp->issue_undi32_command) ((UINT64) (UINTN) &snp->cdb);
if (snp->cdb.StatCode != PXE_STATCODE_SUCCESS) {
DEBUG (
(EFI_D_WARN,
"\nsnp->undi.stop() %xh:%xh\n",
snp->cdb.StatCode,
snp->cdb.StatFlags)
);
return EFI_DEVICE_ERROR;
}
//
// Set simple network state to Started and return success.
//
snp->mode.State = EfiSimpleNetworkStopped;
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
snp_undi32_stop (
IN EFI_SIMPLE_NETWORK_PROTOCOL *this
)
/*++
Routine Description:
This is the SNP interface routine for stopping the interface.
This routine basically retrieves snp structure, checks the SNP state and
calls the pxe_stop routine to actually stop the undi interface
Arguments:
this - context pointer
Returns:
--*/
{
SNP_DRIVER *snp;
if (this == NULL) {
return EFI_INVALID_PARAMETER;
}
snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (this);
if (snp == NULL) {
return EFI_DEVICE_ERROR;
}
switch (snp->mode.State) {
case EfiSimpleNetworkStarted:
break;
case EfiSimpleNetworkStopped:
return EFI_NOT_STARTED;
case EfiSimpleNetworkInitialized:
return EFI_DEVICE_ERROR;
default:
return EFI_DEVICE_ERROR;
}
return pxe_stop (snp);
}
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