audk/EdkModulePkg/Universal/Network/Snp32_64/Dxe/initialize.c

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/*++
Copyright (c) 2006, 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:
initialize.c
Abstract:
Revision history:
2000-Feb-09 M(f)J Genesis.
--*/
#include "Snp.h"
VOID
EFIAPI
SnpWaitForPacketNotify (
IN EFI_EVENT Event,
IN VOID *SnpPtr
);
EFI_STATUS
pxe_init (
SNP_DRIVER *snp,
UINT16 CableDetectFlag
)
/*++
Routine Description:
this routine calls undi to initialize the interface.
Arguments:
snp - pointer to snp driver structure
CableDetectFlag - Do/don't detect the cable (depending on what undi supports)
Returns:
--*/
{
PXE_CPB_INITIALIZE *cpb;
VOID *addr;
EFI_STATUS Status;
cpb = snp->cpb;
if (snp->tx_rx_bufsize != 0) {
Status = snp->IoFncs->AllocateBuffer (
snp->IoFncs,
AllocateAnyPages,
EfiBootServicesData,
SNP_MEM_PAGES (snp->tx_rx_bufsize),
&addr,
0
);
if (Status != EFI_SUCCESS) {
DEBUG (
(EFI_D_ERROR,
"\nsnp->pxe_init() AllocateBuffer %xh (%r)\n",
Status,
Status)
);
return Status;
}
ASSERT (addr);
snp->tx_rx_buffer = addr;
}
cpb->MemoryAddr = (UINT64) (UINTN) snp->tx_rx_buffer;
cpb->MemoryLength = snp->tx_rx_bufsize;
//
// let UNDI decide/detect these values
//
cpb->LinkSpeed = 0;
cpb->TxBufCnt = 0;
cpb->TxBufSize = 0;
cpb->RxBufCnt = 0;
cpb->RxBufSize = 0;
cpb->DuplexMode = PXE_DUPLEX_DEFAULT;
cpb->LoopBackMode = LOOPBACK_NORMAL;
snp->cdb.OpCode = PXE_OPCODE_INITIALIZE;
snp->cdb.OpFlags = CableDetectFlag;
snp->cdb.CPBsize = sizeof (PXE_CPB_INITIALIZE);
snp->cdb.DBsize = sizeof (PXE_DB_INITIALIZE);
snp->cdb.CPBaddr = (UINT64) (UINTN) snp->cpb;
snp->cdb.DBaddr = (UINT64) (UINTN) snp->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;
DEBUG ((EFI_D_NET, "\nsnp->undi.initialize() "));
(*snp->issue_undi32_command) ((UINT64) (UINTN) &snp->cdb);
if (snp->cdb.StatCode == PXE_STATCODE_SUCCESS) {
snp->mode.State = EfiSimpleNetworkInitialized;
Status = EFI_SUCCESS;
} else {
DEBUG (
(EFI_D_WARN,
"\nsnp->undi.initialize() %xh:%xh\n",
snp->cdb.StatFlags,
snp->cdb.StatCode)
);
if (snp->tx_rx_buffer != NULL) {
snp->IoFncs->FreeBuffer (
snp->IoFncs,
SNP_MEM_PAGES (snp->tx_rx_bufsize),
(VOID *) snp->tx_rx_buffer
);
}
snp->tx_rx_buffer = NULL;
Status = EFI_DEVICE_ERROR;
}
return Status;
}
EFI_STATUS
EFIAPI
snp_undi32_initialize (
IN EFI_SIMPLE_NETWORK_PROTOCOL *this,
IN UINTN extra_rx_buffer_size OPTIONAL,
IN UINTN extra_tx_buffer_size OPTIONAL
)
/*++
Routine Description:
This is the SNP interface routine for initializing the interface
This routine basically retrieves snp structure, checks the SNP state and
calls the pxe_initialize routine to actually do the undi initialization
Arguments:
this - context pointer
extra_rx_buffer_size - optional parameter, indicates extra space for rx_buffers
extra_tx_buffer_size - optional parameter, indicates extra space for tx_buffers
Returns:
--*/
{
EFI_STATUS EfiStatus;
SNP_DRIVER *snp;
//
//
//
if (this == NULL) {
return EFI_INVALID_PARAMETER;
}
snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (this);
if (snp == NULL) {
return EFI_INVALID_PARAMETER;
}
//
//
//
switch (snp->mode.State) {
case EfiSimpleNetworkStarted:
break;
case EfiSimpleNetworkStopped:
return EFI_NOT_STARTED;
case EfiSimpleNetworkInitialized:
return EFI_DEVICE_ERROR;
default:
return EFI_DEVICE_ERROR;
}
//
//
//
EfiStatus = gBS->CreateEvent (
EFI_EVENT_NOTIFY_WAIT,
EFI_TPL_NOTIFY,
&SnpWaitForPacketNotify,
snp,
&snp->snp.WaitForPacket
);
if (EFI_ERROR (EfiStatus)) {
snp->snp.WaitForPacket = NULL;
return EFI_DEVICE_ERROR;
}
//
//
//
snp->mode.MCastFilterCount = 0;
snp->mode.ReceiveFilterSetting = 0;
ZeroMem (snp->mode.MCastFilter, sizeof snp->mode.MCastFilter);
CopyMem (
&snp->mode.CurrentAddress,
&snp->mode.PermanentAddress,
sizeof (EFI_MAC_ADDRESS)
);
//
// Compute tx/rx buffer sizes based on UNDI init info and parameters.
//
snp->tx_rx_bufsize = (UINT32) (snp->init_info.MemoryRequired + extra_rx_buffer_size + extra_tx_buffer_size);
if (snp->mode.MediaPresentSupported) {
if (pxe_init (snp, PXE_OPFLAGS_INITIALIZE_DETECT_CABLE) == EFI_SUCCESS) {
snp->mode.MediaPresent = TRUE;
return EFI_SUCCESS;
}
}
snp->mode.MediaPresent = FALSE;
EfiStatus = pxe_init (snp, PXE_OPFLAGS_INITIALIZE_DO_NOT_DETECT_CABLE);
if (EFI_ERROR (EfiStatus)) {
gBS->CloseEvent (snp->snp.WaitForPacket);
}
return EfiStatus;
}