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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:
reset.c
Abstract:
Revision history:
2000-Feb-09 M(f)J Genesis.
--*/
#include "Snp.h"
STATIC
EFI_STATUS
pxe_reset (
SNP_DRIVER *snp
)
/*++
Routine Description:
This routine calls undi to reset the nic.
Arguments:
snp - pointer to the snp driver structure
Returns:
EFI_SUCCESSFUL for a successful completion
other for failed calls
--*/
{
snp->cdb.OpCode = PXE_OPCODE_RESET;
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 and check result.
//
DEBUG ((EFI_D_NET, "\nsnp->undi.reset() "));
(*snp->issue_undi32_command) ((UINT64) (UINTN) &snp->cdb);
if (snp->cdb.StatCode != PXE_STATCODE_SUCCESS) {
DEBUG (
(EFI_D_WARN,
"\nsnp->undi32.reset() %xh:%xh\n",
snp->cdb.StatFlags,
snp->cdb.StatCode)
);
//
// UNDI could not be reset. Return UNDI error.
//
return EFI_DEVICE_ERROR;
}
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
snp_undi32_reset (
IN EFI_SIMPLE_NETWORK_PROTOCOL *this,
IN BOOLEAN ExtendedVerification
)
/*++
Routine Description:
This is the SNP interface routine for resetting the NIC
This routine basically retrieves snp structure, checks the SNP state and
calls the pxe_reset routine to actually do the reset!
Arguments:
this - context pointer
ExtendedVerification - not implemented
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 EfiSimpleNetworkInitialized:
break;
case EfiSimpleNetworkStopped:
return EFI_NOT_STARTED;
case EfiSimpleNetworkStarted:
return EFI_DEVICE_ERROR;
default:
return EFI_DEVICE_ERROR;
}
return pxe_reset (snp);
}
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