2 Copyright (c) 2004 - 2007, Intel Corporation
3 All rights reserved. This program and the accompanying materials
4 are licensed and made available under the terms and conditions of the BSD License
5 which accompanies this distribution. The full text of the license may be found at
6 http://opensource.org/licenses/bsd-license.php
8 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
9 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
17 2000-Feb-14 M(f)J Genesis.
25 this routine calls undi to shut down the interface.
27 @param snp pointer to snp driver structure
36 snp
->cdb
.OpCode
= PXE_OPCODE_SHUTDOWN
;
37 snp
->cdb
.OpFlags
= PXE_OPFLAGS_NOT_USED
;
38 snp
->cdb
.CPBsize
= PXE_CPBSIZE_NOT_USED
;
39 snp
->cdb
.DBsize
= PXE_DBSIZE_NOT_USED
;
40 snp
->cdb
.CPBaddr
= PXE_CPBADDR_NOT_USED
;
41 snp
->cdb
.DBaddr
= PXE_DBADDR_NOT_USED
;
42 snp
->cdb
.StatCode
= PXE_STATCODE_INITIALIZE
;
43 snp
->cdb
.StatFlags
= PXE_STATFLAGS_INITIALIZE
;
44 snp
->cdb
.IFnum
= snp
->if_num
;
45 snp
->cdb
.Control
= PXE_CONTROL_LAST_CDB_IN_LIST
;
48 // Issue UNDI command and check result.
50 DEBUG ((EFI_D_NET
, "\nsnp->undi.shutdown() "));
52 (*snp
->issue_undi32_command
) ((UINT64
)(UINTN
) &snp
->cdb
);
54 if (snp
->cdb
.StatCode
!= PXE_STATCODE_SUCCESS
) {
56 // UNDI could not be shutdown. Return UNDI error.
58 DEBUG ((EFI_D_WARN
, "\nsnp->undi.shutdown() %xh:%xh\n", snp
->cdb
.StatFlags
, snp
->cdb
.StatCode
));
60 return EFI_DEVICE_ERROR
;
63 // Free allocated memory.
65 if (snp
->tx_rx_buffer
!= NULL
) {
66 snp
->IoFncs
->FreeBuffer (
68 SNP_MEM_PAGES (snp
->tx_rx_bufsize
),
69 (VOID
*) snp
->tx_rx_buffer
73 snp
->tx_rx_buffer
= NULL
;
74 snp
->tx_rx_bufsize
= 0;
81 This is the SNP interface routine for shutting down the interface
82 This routine basically retrieves snp structure, checks the SNP state and
83 calls the pxe_shutdown routine to actually do the undi shutdown
85 @param this context pointer
92 IN EFI_SIMPLE_NETWORK_PROTOCOL
*this
103 return EFI_INVALID_PARAMETER
;
106 snp
= EFI_SIMPLE_NETWORK_DEV_FROM_THIS (this);
108 OldTpl
= gBS
->RaiseTPL (TPL_CALLBACK
);
113 switch (snp
->mode
.State
) {
114 case EfiSimpleNetworkInitialized
:
117 case EfiSimpleNetworkStopped
:
118 Status
= EFI_NOT_STARTED
;
122 Status
= EFI_DEVICE_ERROR
;
128 Status
= pxe_shutdown (snp
);
130 snp
->mode
.State
= EfiSimpleNetworkStarted
;
131 snp
->mode
.ReceiveFilterSetting
= 0;
133 snp
->mode
.MCastFilterCount
= 0;
134 snp
->mode
.ReceiveFilterSetting
= 0;
135 ZeroMem (snp
->mode
.MCastFilter
, sizeof snp
->mode
.MCastFilter
);
137 &snp
->mode
.CurrentAddress
,
138 &snp
->mode
.PermanentAddress
,
139 sizeof (EFI_MAC_ADDRESS
)
142 gBS
->CloseEvent (snp
->snp
.WaitForPacket
);
145 gBS
->RestoreTPL (OldTpl
);