1. Sync the latest network stack. Add NetLibCreateIPv4DPathNode () in netlib library.

[mirror_edk2.git] / MdeModulePkg / Universal / Network / SnpDxe / stop.c

/** @file\r
Copyright (c) 2004 - 2007, Intel Corporation\r
All rights reserved. This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
Module name:\r
  stop.c\r
\r
Abstract:\r
\r
Revision history:\r
  2000-Feb-09 M(f)J   Genesis.\r
\r
**/\r
\r
#include "Snp.h"\r
\r
\r
/**\r
  this routine calls undi to stop the interface and changes the snp state\r
\r
  @param  snp   pointer to snp driver structure\r
\r
\r
**/\r
EFI_STATUS\r
pxe_stop (\r
  SNP_DRIVER *snp\r
  )\r
{\r
  snp->cdb.OpCode     = PXE_OPCODE_STOP;\r
  snp->cdb.OpFlags    = PXE_OPFLAGS_NOT_USED;\r
  snp->cdb.CPBsize    = PXE_CPBSIZE_NOT_USED;\r
  snp->cdb.DBsize     = PXE_DBSIZE_NOT_USED;\r
  snp->cdb.CPBaddr    = PXE_CPBADDR_NOT_USED;\r
  snp->cdb.DBaddr     = PXE_DBADDR_NOT_USED;\r
  snp->cdb.StatCode   = PXE_STATCODE_INITIALIZE;\r
  snp->cdb.StatFlags  = PXE_STATFLAGS_INITIALIZE;\r
  snp->cdb.IFnum      = snp->if_num;\r
  snp->cdb.Control    = PXE_CONTROL_LAST_CDB_IN_LIST;\r
\r
  //\r
  // Issue UNDI command\r
  //\r
  DEBUG ((EFI_D_NET, "\nsnp->undi.stop()  "));\r
\r
  (*snp->issue_undi32_command) ((UINT64)(UINTN) &snp->cdb);\r
\r
  if (snp->cdb.StatCode != PXE_STATCODE_SUCCESS) {\r
    DEBUG (\r
      (EFI_D_WARN,\r
      "\nsnp->undi.stop()  %xh:%xh\n",\r
      snp->cdb.StatCode,\r
      snp->cdb.StatFlags)\r
      );\r
\r
    return EFI_DEVICE_ERROR;\r
  }\r
  //\r
  // Set simple network state to Started and return success.\r
  //\r
  snp->mode.State = EfiSimpleNetworkStopped;\r
  return EFI_SUCCESS;\r
}\r
\r
\r
/**\r
  This is the SNP interface routine for stopping the interface.\r
  This routine basically retrieves snp structure, checks the SNP state and\r
  calls the pxe_stop routine to actually stop the undi interface\r
\r
  @param  this  context pointer\r
\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
snp_undi32_stop (\r
  IN EFI_SIMPLE_NETWORK_PROTOCOL *this\r
  )\r
{\r
  SNP_DRIVER  *snp;\r
  EFI_TPL     OldTpl;\r
  EFI_STATUS  Status;\r
\r
  if (this == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (this);\r
\r
  OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
\r
  switch (snp->mode.State) {\r
  case EfiSimpleNetworkStarted:\r
    break;\r
\r
  case EfiSimpleNetworkStopped:\r
    Status = EFI_NOT_STARTED;\r
    goto ON_EXIT;\r
\r
  default:\r
    Status = EFI_DEVICE_ERROR;\r
    goto ON_EXIT;\r
  }\r
\r
  Status = pxe_stop (snp);\r
\r
ON_EXIT:\r
  gBS->RestoreTPL (OldTpl);\r
\r
  return Status;\r
}\r