mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-27 12:15:19 +01:00
121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
/** @file
|
|
Implementation of stopping a network interface.
|
|
|
|
Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#include "Snp.h"
|
|
|
|
|
|
/**
|
|
Call UNDI to stop the interface and changes the snp state.
|
|
|
|
@param Snp Pointer to snp driver structure
|
|
|
|
@retval EFI_SUCCESS The network interface was stopped.
|
|
@retval EFI_DEVICE_ERROR SNP is not initialized.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
PxeStop (
|
|
SNP_DRIVER *Snp
|
|
)
|
|
{
|
|
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->IfNum;
|
|
Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;
|
|
|
|
//
|
|
// Issue UNDI command
|
|
//
|
|
DEBUG ((EFI_D_NET, "\nsnp->undi.stop() "));
|
|
|
|
(*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);
|
|
|
|
if (Snp->Cdb.StatCode != PXE_STATCODE_SUCCESS) {
|
|
DEBUG (
|
|
(EFI_D_WARN,
|
|
"\nsnp->undi.stop() %xh:%xh\n",
|
|
Snp->Cdb.StatFlags,
|
|
Snp->Cdb.StatCode)
|
|
);
|
|
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
//
|
|
// Set simple network state to Started and return success.
|
|
//
|
|
Snp->Mode.State = EfiSimpleNetworkStopped;
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
Changes the state of a network interface from "started" to "stopped."
|
|
|
|
This function stops a network interface. This call is only valid if the network
|
|
interface is in the started state. If the network interface was successfully
|
|
stopped, then EFI_SUCCESS will be returned.
|
|
|
|
@param This A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL
|
|
instance.
|
|
|
|
|
|
@retval EFI_SUCCESS The network interface was stopped.
|
|
@retval EFI_NOT_STARTED The network interface has not been started.
|
|
@retval EFI_INVALID_PARAMETER This parameter was NULL or did not point to a
|
|
valid EFI_SIMPLE_NETWORK_PROTOCOL structure.
|
|
@retval EFI_DEVICE_ERROR The command could not be sent to the network
|
|
interface.
|
|
@retval EFI_UNSUPPORTED This function is not supported by the network
|
|
interface.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
SnpUndi32Stop (
|
|
IN EFI_SIMPLE_NETWORK_PROTOCOL *This
|
|
)
|
|
{
|
|
SNP_DRIVER *Snp;
|
|
EFI_TPL OldTpl;
|
|
EFI_STATUS Status;
|
|
|
|
if (This == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (This);
|
|
|
|
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
|
|
|
|
switch (Snp->Mode.State) {
|
|
case EfiSimpleNetworkStarted:
|
|
break;
|
|
|
|
case EfiSimpleNetworkStopped:
|
|
Status = EFI_NOT_STARTED;
|
|
goto ON_EXIT;
|
|
|
|
default:
|
|
Status = EFI_DEVICE_ERROR;
|
|
goto ON_EXIT;
|
|
}
|
|
|
|
Status = PxeStop (Snp);
|
|
|
|
ON_EXIT:
|
|
gBS->RestoreTPL (OldTpl);
|
|
|
|
return Status;
|
|
}
|