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a1dbee50 | 1 | /** @file\r |
4cda7726 | 2 | Implementation of stopping a network interface.\r |
d1102dba LG |
3 | \r |
4 | Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>\r | |
9d510e61 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
a1dbee50 | 6 | \r |
a1dbee50 | 7 | **/\r |
8 | \r | |
9 | #include "Snp.h"\r | |
10 | \r | |
11 | \r | |
12 | /**\r | |
f3816027 | 13 | Call UNDI to stop the interface and changes the snp state.\r |
a1dbee50 | 14 | \r |
f3816027 | 15 | @param Snp Pointer to snp driver structure\r |
d1102dba | 16 | \r |
f3816027 | 17 | @retval EFI_SUCCESS The network interface was stopped.\r |
18 | @retval EFI_DEVICE_ERROR SNP is not initialized.\r | |
a1dbee50 | 19 | \r |
20 | **/\r | |
21 | EFI_STATUS\r | |
4cda7726 | 22 | PxeStop (\r |
23 | SNP_DRIVER *Snp\r | |
a1dbee50 | 24 | )\r |
25 | {\r | |
4cda7726 | 26 | Snp->Cdb.OpCode = PXE_OPCODE_STOP;\r |
27 | Snp->Cdb.OpFlags = PXE_OPFLAGS_NOT_USED;\r | |
28 | Snp->Cdb.CPBsize = PXE_CPBSIZE_NOT_USED;\r | |
29 | Snp->Cdb.DBsize = PXE_DBSIZE_NOT_USED;\r | |
30 | Snp->Cdb.CPBaddr = PXE_CPBADDR_NOT_USED;\r | |
31 | Snp->Cdb.DBaddr = PXE_DBADDR_NOT_USED;\r | |
32 | Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;\r | |
33 | Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r | |
34 | Snp->Cdb.IFnum = Snp->IfNum;\r | |
35 | Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r | |
a1dbee50 | 36 | \r |
37 | //\r | |
38 | // Issue UNDI command\r | |
39 | //\r | |
9cff2f8d | 40 | DEBUG ((EFI_D_NET, "\nsnp->undi.stop() "));\r |
a1dbee50 | 41 | \r |
4cda7726 | 42 | (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);\r |
a1dbee50 | 43 | \r |
4cda7726 | 44 | if (Snp->Cdb.StatCode != PXE_STATCODE_SUCCESS) {\r |
a1dbee50 | 45 | DEBUG (\r |
9cff2f8d | 46 | (EFI_D_WARN,\r |
a1dbee50 | 47 | "\nsnp->undi.stop() %xh:%xh\n",\r |
1e7b3ef6 FS |
48 | Snp->Cdb.StatFlags,\r |
49 | Snp->Cdb.StatCode)\r | |
a1dbee50 | 50 | );\r |
51 | \r | |
52 | return EFI_DEVICE_ERROR;\r | |
53 | }\r | |
54 | //\r | |
55 | // Set simple network state to Started and return success.\r | |
56 | //\r | |
4cda7726 | 57 | Snp->Mode.State = EfiSimpleNetworkStopped;\r |
a1dbee50 | 58 | return EFI_SUCCESS;\r |
59 | }\r | |
60 | \r | |
61 | \r | |
62 | /**\r | |
4cda7726 | 63 | Changes the state of a network interface from "started" to "stopped."\r |
d1102dba | 64 | \r |
4cda7726 | 65 | This function stops a network interface. This call is only valid if the network\r |
66 | interface is in the started state. If the network interface was successfully\r | |
67 | stopped, then EFI_SUCCESS will be returned.\r | |
d1102dba LG |
68 | \r |
69 | @param This A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL\r | |
f3816027 | 70 | instance.\r |
d1102dba LG |
71 | \r |
72 | \r | |
4cda7726 | 73 | @retval EFI_SUCCESS The network interface was stopped.\r |
74 | @retval EFI_NOT_STARTED The network interface has not been started.\r | |
d1102dba | 75 | @retval EFI_INVALID_PARAMETER This parameter was NULL or did not point to a\r |
f3816027 | 76 | valid EFI_SIMPLE_NETWORK_PROTOCOL structure.\r |
d1102dba | 77 | @retval EFI_DEVICE_ERROR The command could not be sent to the network\r |
f3816027 | 78 | interface.\r |
d1102dba | 79 | @retval EFI_UNSUPPORTED This function is not supported by the network\r |
f3816027 | 80 | interface.\r |
a1dbee50 | 81 | \r |
82 | **/\r | |
83 | EFI_STATUS\r | |
84 | EFIAPI\r | |
4cda7726 | 85 | SnpUndi32Stop (\r |
86 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This\r | |
a1dbee50 | 87 | )\r |
88 | {\r | |
4cda7726 | 89 | SNP_DRIVER *Snp;\r |
a1dbee50 | 90 | EFI_TPL OldTpl;\r |
91 | EFI_STATUS Status;\r | |
92 | \r | |
4cda7726 | 93 | if (This == NULL) {\r |
a1dbee50 | 94 | return EFI_INVALID_PARAMETER;\r |
95 | }\r | |
96 | \r | |
4cda7726 | 97 | Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (This);\r |
a1dbee50 | 98 | \r |
99 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
100 | \r | |
4cda7726 | 101 | switch (Snp->Mode.State) {\r |
a1dbee50 | 102 | case EfiSimpleNetworkStarted:\r |
103 | break;\r | |
104 | \r | |
105 | case EfiSimpleNetworkStopped:\r | |
106 | Status = EFI_NOT_STARTED;\r | |
107 | goto ON_EXIT;\r | |
108 | \r | |
109 | default:\r | |
110 | Status = EFI_DEVICE_ERROR;\r | |
111 | goto ON_EXIT;\r | |
112 | }\r | |
113 | \r | |
4cda7726 | 114 | Status = PxeStop (Snp);\r |
a1dbee50 | 115 | \r |
116 | ON_EXIT:\r | |
117 | gBS->RestoreTPL (OldTpl);\r | |
118 | \r | |
119 | return Status;\r | |
120 | }\r |