From 3bb7aff34e8868de14a613d4bb320e50e8fce873 Mon Sep 17 00:00:00 2001 From: vanjeff Date: Wed, 20 Feb 2008 02:36:47 +0000 Subject: rename git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4724 6f19259b-4bc3-4df7-8a09-765794883524 --- MdeModulePkg/Universal/Network/SnpDxe/Receive.c | 216 ++++++++++++++++++++++++ 1 file changed, 216 insertions(+) create mode 100644 MdeModulePkg/Universal/Network/SnpDxe/Receive.c 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; +} -- cgit v1.2.3