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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4721 6f19259b-4bc3-4df7-8a09-765794883524
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vanjeff
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/** @file
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Copyright (c) 2004 - 2007, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module name:
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initialize.c
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Abstract:
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Revision history:
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2000-Feb-09 M(f)J Genesis.
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**/
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#include "Snp.h"
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VOID
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EFIAPI
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SnpWaitForPacketNotify (
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IN EFI_EVENT Event,
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IN VOID *SnpPtr
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);
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/**
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this routine calls undi to initialize the interface.
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@param snp pointer to snp driver structure
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@param CableDetectFlag Do/don't detect the cable (depending on what undi
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supports)
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**/
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EFI_STATUS
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pxe_init (
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SNP_DRIVER *snp,
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UINT16 CableDetectFlag
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)
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{
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PXE_CPB_INITIALIZE *cpb;
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VOID *addr;
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EFI_STATUS Status;
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cpb = snp->cpb;
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if (snp->tx_rx_bufsize != 0) {
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Status = snp->IoFncs->AllocateBuffer (
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snp->IoFncs,
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AllocateAnyPages,
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EfiBootServicesData,
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SNP_MEM_PAGES (snp->tx_rx_bufsize),
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&addr,
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0
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);
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if (Status != EFI_SUCCESS) {
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DEBUG (
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(EFI_D_ERROR,
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"\nsnp->pxe_init() AllocateBuffer %xh (%r)\n",
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Status,
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Status)
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);
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return Status;
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}
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ASSERT (addr);
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snp->tx_rx_buffer = addr;
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}
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cpb->MemoryAddr = (UINT64)(UINTN) snp->tx_rx_buffer;
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cpb->MemoryLength = snp->tx_rx_bufsize;
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//
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// let UNDI decide/detect these values
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//
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cpb->LinkSpeed = 0;
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cpb->TxBufCnt = 0;
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cpb->TxBufSize = 0;
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cpb->RxBufCnt = 0;
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cpb->RxBufSize = 0;
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cpb->DuplexMode = PXE_DUPLEX_DEFAULT;
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cpb->LoopBackMode = LOOPBACK_NORMAL;
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snp->cdb.OpCode = PXE_OPCODE_INITIALIZE;
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snp->cdb.OpFlags = CableDetectFlag;
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snp->cdb.CPBsize = sizeof (PXE_CPB_INITIALIZE);
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snp->cdb.DBsize = sizeof (PXE_DB_INITIALIZE);
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snp->cdb.CPBaddr = (UINT64)(UINTN) snp->cpb;
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snp->cdb.DBaddr = (UINT64)(UINTN) snp->db;
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snp->cdb.StatCode = PXE_STATCODE_INITIALIZE;
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snp->cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;
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snp->cdb.IFnum = snp->if_num;
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snp->cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;
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DEBUG ((EFI_D_NET, "\nsnp->undi.initialize() "));
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(*snp->issue_undi32_command) ((UINT64)(UINTN) &snp->cdb);
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if (snp->cdb.StatCode == PXE_STATCODE_SUCCESS) {
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snp->mode.State = EfiSimpleNetworkInitialized;
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Status = EFI_SUCCESS;
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} else {
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DEBUG (
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(EFI_D_WARN,
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"\nsnp->undi.initialize() %xh:%xh\n",
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snp->cdb.StatFlags,
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snp->cdb.StatCode)
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);
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if (snp->tx_rx_buffer != NULL) {
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snp->IoFncs->FreeBuffer (
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snp->IoFncs,
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SNP_MEM_PAGES (snp->tx_rx_bufsize),
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(VOID *) snp->tx_rx_buffer
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);
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}
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snp->tx_rx_buffer = NULL;
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Status = EFI_DEVICE_ERROR;
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}
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return Status;
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}
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/**
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This is the SNP interface routine for initializing the interface
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This routine basically retrieves snp structure, checks the SNP state and
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calls the pxe_initialize routine to actually do the undi initialization
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@param this context pointer
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@param extra_rx_buffer_size optional parameter, indicates extra space for
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rx_buffers
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@param extra_tx_buffer_size optional parameter, indicates extra space for
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tx_buffers
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**/
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EFI_STATUS
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EFIAPI
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snp_undi32_initialize (
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IN EFI_SIMPLE_NETWORK_PROTOCOL *this,
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IN UINTN extra_rx_buffer_size OPTIONAL,
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IN UINTN extra_tx_buffer_size OPTIONAL
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)
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{
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EFI_STATUS EfiStatus;
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SNP_DRIVER *snp;
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EFI_TPL OldTpl;
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//
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//
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//
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if (this == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (this);
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OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
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if (snp == NULL) {
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EfiStatus = EFI_INVALID_PARAMETER;
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goto ON_EXIT;
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}
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switch (snp->mode.State) {
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case EfiSimpleNetworkStarted:
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break;
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case EfiSimpleNetworkStopped:
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EfiStatus = EFI_NOT_STARTED;
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goto ON_EXIT;
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default:
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EfiStatus = EFI_DEVICE_ERROR;
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goto ON_EXIT;
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}
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EfiStatus = gBS->CreateEvent (
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EVT_NOTIFY_WAIT,
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TPL_NOTIFY,
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&SnpWaitForPacketNotify,
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snp,
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&snp->snp.WaitForPacket
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);
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if (EFI_ERROR (EfiStatus)) {
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snp->snp.WaitForPacket = NULL;
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EfiStatus = EFI_DEVICE_ERROR;
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goto ON_EXIT;
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}
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//
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//
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//
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snp->mode.MCastFilterCount = 0;
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snp->mode.ReceiveFilterSetting = 0;
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ZeroMem (snp->mode.MCastFilter, sizeof snp->mode.MCastFilter);
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CopyMem (
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&snp->mode.CurrentAddress,
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&snp->mode.PermanentAddress,
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sizeof (EFI_MAC_ADDRESS)
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);
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//
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// Compute tx/rx buffer sizes based on UNDI init info and parameters.
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//
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snp->tx_rx_bufsize = (UINT32) (snp->init_info.MemoryRequired + extra_rx_buffer_size + extra_tx_buffer_size);
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if (snp->mode.MediaPresentSupported) {
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if (pxe_init (snp, PXE_OPFLAGS_INITIALIZE_DETECT_CABLE) == EFI_SUCCESS) {
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snp->mode.MediaPresent = TRUE;
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goto ON_EXIT;
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}
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}
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snp->mode.MediaPresent = FALSE;
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EfiStatus = pxe_init (snp, PXE_OPFLAGS_INITIALIZE_DO_NOT_DETECT_CABLE);
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if (EFI_ERROR (EfiStatus)) {
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gBS->CloseEvent (snp->snp.WaitForPacket);
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}
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ON_EXIT:
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gBS->RestoreTPL (OldTpl);
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return EfiStatus;
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}
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