rename

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4724 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 216 insertions, 0 deletions

diff --git a/MdeModulePkg/Universal/Network/SnpDxe/Receive.c b/MdeModulePkg/Universal/Network/SnpDxe/Receive.c
new file mode 100644
index 0000000000..b6f0c55dde
--- /dev/null
+++ b/MdeModulePkg/Universal/Network/SnpDxe/Receive.c
@@ -0,0 +1,216 @@
+/** @file

+Copyright (c) 2004 - 2007, 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:

+    receive.c

+

+Abstract:

+

+Revision history:

+    2000-Feb-03 M(f)J   Genesis.

+

+**/

+

+

+#include "Snp.h"

+

+/**

+  this routine calls undi to receive a packet and fills in the data in the

+  input pointers!

+

+  @param  snp                 pointer to snp driver structure

+  @param  BufferPtr           pointer to the memory for the received data

+  @param  BuffSizePtr         is a pointer to the length of the buffer on entry and

+                              contains the length of the received data on return

+  @param  HeaderSizePtr       pointer to the header portion of the data received.

+  @param  SourceAddrPtr       optional parameter, is a pointer to contain the

+                              source ethernet address on return

+  @param  DestinationAddrPtr  optional parameter, is a pointer to contain the

+                              destination ethernet address on return

+  @param  ProtocolPtr         optional parameter, is a pointer to contain the

+                              protocol type from the ethernet header on return

+

+

+**/

+STATIC

+EFI_STATUS

+pxe_receive (

+  SNP_DRIVER      *snp,

+  VOID            *BufferPtr,

+  UINTN           *BuffSizePtr,

+  UINTN           *HeaderSizePtr,

+  EFI_MAC_ADDRESS *SourceAddrPtr,

+  EFI_MAC_ADDRESS *DestinationAddrPtr,

+  UINT16          *ProtocolPtr

+  )

+{

+  PXE_CPB_RECEIVE *cpb;

+  PXE_DB_RECEIVE  *db;

+  UINTN           buf_size;

+

+  cpb       = snp->cpb;

+  db        = snp->db;

+  buf_size  = *BuffSizePtr;

+

+  cpb->BufferAddr = (UINT64)(UINTN) BufferPtr;

+  cpb->BufferLen  = (UINT32) *BuffSizePtr;

+

+  cpb->reserved       = 0;

+

+  snp->cdb.OpCode     = PXE_OPCODE_RECEIVE;

+  snp->cdb.OpFlags    = PXE_OPFLAGS_NOT_USED;

+

+  snp->cdb.CPBsize    = sizeof (PXE_CPB_RECEIVE);

+  snp->cdb.CPBaddr    = (UINT64)(UINTN) cpb;

+

+  snp->cdb.DBsize     = sizeof (PXE_DB_RECEIVE);

+  snp->cdb.DBaddr     = (UINT64)(UINTN) db;

+

+  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.receive ()  "));

+

+  (*snp->issue_undi32_command) ((UINT64)(UINTN) &snp->cdb);

+

+  switch (snp->cdb.StatCode) {

+  case PXE_STATCODE_SUCCESS:

+    break;

+

+  case PXE_STATCODE_NO_DATA:

+    DEBUG (

+      (EFI_D_NET,

+      "\nsnp->undi.receive ()  %xh:%xh\n",

+      snp->cdb.StatFlags,

+      snp->cdb.StatCode)

+      );

+

+    return EFI_NOT_READY;

+

+  default:

+    DEBUG (

+      (EFI_D_ERROR,

+      "\nsnp->undi.receive()  %xh:%xh\n",

+      snp->cdb.StatFlags,

+      snp->cdb.StatCode)

+      );

+

+    return EFI_DEVICE_ERROR;

+  }

+

+  *BuffSizePtr = db->FrameLen;

+

+  if (HeaderSizePtr != NULL) {

+    *HeaderSizePtr = db->MediaHeaderLen;

+  }

+

+  if (SourceAddrPtr != NULL) {

+    CopyMem (SourceAddrPtr, &db->SrcAddr, snp->mode.HwAddressSize);

+  }

+

+  if (DestinationAddrPtr != NULL) {

+    CopyMem (DestinationAddrPtr, &db->DestAddr, snp->mode.HwAddressSize);

+  }

+

+  if (ProtocolPtr != NULL) {

+    *ProtocolPtr = (UINT16) PXE_SWAP_UINT16 (db->Protocol); /*  we need to do the byte swapping */

+  }

+

+  return (*BuffSizePtr <= buf_size) ? EFI_SUCCESS : EFI_BUFFER_TOO_SMALL;

+}

+

+

+/**

+  This is the SNP interface routine for receiving network data.

+  This routine basically retrieves snp structure, checks the SNP state and

+  calls the pxe_receive routine to actually do the receive!

+

+  @param  this                context pointer

+  @param  HeaderSizePtr       optional parameter and is a pointer to the header

+                              portion of the data received.

+  @param  BuffSizePtr         is a pointer to the length of the buffer on entry and

+                              contains the length of the received data on return

+  @param  BufferPtr           pointer to the memory for the received data

+  @param  SourceAddrPtr       optional parameter, is a pointer to contain the

+                              source ethernet address on return

+  @param  DestinationAddrPtr  optional parameter, is a pointer to contain the

+                              destination ethernet address on return

+  @param  ProtocolPtr         optional parameter, is a pointer to contain the

+                              protocol type from the ethernet header on return

+

+

+**/

+EFI_STATUS

+EFIAPI

+snp_undi32_receive (

+  IN EFI_SIMPLE_NETWORK_PROTOCOL * this,

+  OUT UINTN                      *HeaderSizePtr OPTIONAL,

+  IN OUT UINTN                   *BuffSizePtr,

+  OUT VOID                       *BufferPtr,

+  OUT EFI_MAC_ADDRESS            * SourceAddrPtr OPTIONAL,

+  OUT EFI_MAC_ADDRESS            * DestinationAddrPtr OPTIONAL,

+  OUT UINT16                     *ProtocolPtr OPTIONAL

+  )

+{

+  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 EfiSimpleNetworkInitialized:

+    break;

+

+  case EfiSimpleNetworkStopped:

+    Status = EFI_NOT_STARTED;

+    goto ON_EXIT;

+

+  default:

+    Status = EFI_DEVICE_ERROR;

+    goto ON_EXIT;

+  }

+

+  if ((BuffSizePtr == NULL) || (BufferPtr == NULL)) {

+    Status = EFI_INVALID_PARAMETER;

+    goto ON_EXIT;

+  }

+

+  if (!snp->mode.ReceiveFilterSetting) {

+    Status = EFI_DEVICE_ERROR;

+    goto ON_EXIT;

+  }

+

+  Status = pxe_receive (

+             snp,

+             BufferPtr,

+             BuffSizePtr,

+             HeaderSizePtr,

+             SourceAddrPtr,

+             DestinationAddrPtr,

+             ProtocolPtr

+             );

+

+ON_EXIT:

+  gBS->RestoreTPL (OldTpl);

+

+  return Status;

+}