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| author | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-02-20 02:36:47 +0000 |
|---|---|---|
| committer | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-02-20 02:36:47 +0000 |
| commit | 3bb7aff34e8868de14a613d4bb320e50e8fce873 (patch) | |
| tree | 39804317c3f687de1793b8ba1d07e9831e95e7bd /MdeModulePkg/Universal/Network | |
| parent | d007c0a2d4a1b105e2cccbbbd00fcdef7745476c (diff) | |
| download | edk2-3bb7aff34e8868de14a613d4bb320e50e8fce873.zip edk2-3bb7aff34e8868de14a613d4bb320e50e8fce873.tar.gz edk2-3bb7aff34e8868de14a613d4bb320e50e8fce873.tar.bz2 | |
rename
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4724 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Universal/Network')
| -rw-r--r-- | MdeModulePkg/Universal/Network/SnpDxe/Receive.c | 216 |
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 0000000..b6f0c55 --- /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;
+}
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