Import SnpDxe, Tcp4Dxe, Udp4Dxe and MnpDxe.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3416 6f19259b-4bc3-4df7-8a09-765794883524
2007-07-24 08:06:37 +00:00
parent f9bef4b3ac
commit 8a67d61da4
66 changed files with 25898 additions and 52 deletions
--- a/MdeModulePkg/Universal/Network/SnpDxe/WaitForPacket.c
+++ b/MdeModulePkg/Universal/Network/SnpDxe/WaitForPacket.c
@ -0,0 +1,97 @@
+/** @file
+Copyright (c) 2004, 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:
+  WaitForPacket.c
+
+Abstract:
+  Event handler to check for available packet.
+
+
+**/
+
+#include "Snp.h"
+
+
+/**
+
+
+
+**/
+VOID
+EFIAPI
+SnpWaitForPacketNotify (
+  EFI_EVENT Event,
+  VOID      *SnpPtr
+  )
+{
+  PXE_DB_GET_STATUS PxeDbGetStatus;
+
+  //
+  // Do nothing if either parameter is a NULL pointer.
+  //
+  if (Event == NULL || SnpPtr == NULL) {
+    return ;
+  }
+  //
+  // Do nothing if the SNP interface is not initialized.
+  //
+  switch (((SNP_DRIVER *) SnpPtr)->mode.State) {
+  case EfiSimpleNetworkInitialized:
+    break;
+
+  case EfiSimpleNetworkStopped:
+  case EfiSimpleNetworkStarted:
+  default:
+    return ;
+  }
+  //
+  // Fill in CDB for UNDI GetStatus().
+  //
+  ((SNP_DRIVER *) SnpPtr)->cdb.OpCode     = PXE_OPCODE_GET_STATUS;
+  ((SNP_DRIVER *) SnpPtr)->cdb.OpFlags    = 0;
+  ((SNP_DRIVER *) SnpPtr)->cdb.CPBsize    = PXE_CPBSIZE_NOT_USED;
+  ((SNP_DRIVER *) SnpPtr)->cdb.CPBaddr    = PXE_CPBADDR_NOT_USED;
+  ((SNP_DRIVER *) SnpPtr)->cdb.DBsize     = sizeof (UINT32) * 2;
+  ((SNP_DRIVER *) SnpPtr)->cdb.DBaddr     = (UINT64)(UINTN) (((SNP_DRIVER *) SnpPtr)->db);
+  ((SNP_DRIVER *) SnpPtr)->cdb.StatCode   = PXE_STATCODE_INITIALIZE;
+  ((SNP_DRIVER *) SnpPtr)->cdb.StatFlags  = PXE_STATFLAGS_INITIALIZE;
+  ((SNP_DRIVER *) SnpPtr)->cdb.IFnum      = ((SNP_DRIVER *) SnpPtr)->if_num;
+  ((SNP_DRIVER *) SnpPtr)->cdb.Control    = PXE_CONTROL_LAST_CDB_IN_LIST;
+
+  //
+  // Clear contents of DB buffer.
+  //
+  ZeroMem (((SNP_DRIVER *) SnpPtr)->db, sizeof (UINT32) * 2);
+
+  //
+  // Issue UNDI command and check result.
+  //
+  (*((SNP_DRIVER *) SnpPtr)->issue_undi32_command) ((UINT64)(UINTN) &((SNP_DRIVER *) SnpPtr)->cdb);
+
+  if (((SNP_DRIVER *) SnpPtr)->cdb.StatCode != EFI_SUCCESS) {
+    return ;
+  }
+  //
+  // We might have a packet.  Check the receive length and signal
+  // the event if the length is not zero.
+  //
+  CopyMem (
+    &PxeDbGetStatus,
+    ((SNP_DRIVER *) SnpPtr)->db,
+    sizeof (UINT32) * 2
+    );
+
+  if (PxeDbGetStatus.RxFrameLen != 0) {
+    gBS->SignalEvent (Event);
+  }
+}
+
+/* eof - WaitForPacket.c */