[edk2-devel] [PATCH v4 edk2-platforms 1/1] Silicon/DesignWare/Driver: DwEmacSnpDxe: Add DesignWare EMAC driver
Ooi, Tzy Way
tzy.way.ooi at intel.com
Wed May 22 02:37:47 UTC 2019
Hi Maintainers,
Please could you help to review this patch? Thanks.
Regards,
Tzy Way
On Wed, 2019-05-08 at 17:52 +0800, tzy.way.ooi at intel.com wrote:
> From: Ooi Tzy Way <tzy.way.ooi at intel.com>
>
> Add driver support for the Ethernet MAC based on Synopsys DesignWare
> 3504-0 Universal 10/100/1000 Ethernet MAC and KSZ9031 PHY
>
> Cc: Ard BieSheuvel<ard.biesheuvel at linaro.org>
> Cc: Leif Lindholm<leif.lindholm at linaro.org>
> Cc: Michael D Kinney<michael.d.kinney at intel.com>
> Cc: Loh Tien Hock<tien.hock.loh at intel.com>
>
> Contributed-under: Tianocore Contribution Agreement 1.1
> Signed-off-by: Ooi Tzy Way <tzy.way.ooi at intel.com>
>
> ---
> v4:
> - Describe the device with non-discoverable device protocol
> - Expose the MMIO base address in the EFI ACPI address space
> descriptor
> - Remove cache maintainence and use DmaLib for non-coherent DMA
> access
> ---
> Silicon/DesignWare/DesignWare.dec | 34 +
> Silicon/DesignWare/Drivers/DwEmacSnpDxe/DwEmacSnpDxe.inf | 82 ++
> Silicon/DesignWare/Drivers/DwEmacSnpDxe/DwEmacSnpDxe.h | 229 ++++
> Silicon/DesignWare/Drivers/DwEmacSnpDxe/EmacDxeUtil.h | 392
> ++++++
> Silicon/DesignWare/Drivers/DwEmacSnpDxe/PhyDxeUtil.h | 341
> ++++++
> Silicon/DesignWare/Drivers/DwEmacSnpDxe/ComponentName.c | 327
> +++++
> Silicon/DesignWare/Drivers/DwEmacSnpDxe/DriverBinding.c | 450
> +++++++
> Silicon/DesignWare/Drivers/DwEmacSnpDxe/DwEmacSnpDxe.c | 1273
> ++++++++++++++++++++
> Silicon/DesignWare/Drivers/DwEmacSnpDxe/EmacDxeUtil.c | 684
> +++++++++++
> Silicon/DesignWare/Drivers/DwEmacSnpDxe/PhyDxeUtil.c | 621
> ++++++++++
> 10 files changed, 4433 insertions(+)
>
> diff --git a/Silicon/DesignWare/DesignWare.dec
> b/Silicon/DesignWare/DesignWare.dec
> new file mode 100755
> index 000000000000..bad81fb6a023
> --- /dev/null
> +++ b/Silicon/DesignWare/DesignWare.dec
> @@ -0,0 +1,34 @@
> + #Copyright (c) 2011 - 2019, Intel Corporaton. 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.
> +
> +[Defines]
> + DEC_SPECIFICATION = 0x00010005
> + PACKAGE_NAME = DesignWarePkg
> + PACKAGE_GUID = 3b5936d8-c72d-412d-b4d9-
> 3bf0dea73598
> + PACKAGE_VERSION = 0.1
> +
> +####################################################################
> ############
> +#
> +# Include Section - list of Include Paths that are provided by this
> package.
> +# Comments are used for Keywords and Module Types.
> +#
> +# Supported Module Types:
> +# BASE SEC PEI_CORE PEIM DXE_CORE DXE_DRIVER DXE_RUNTIME_DRIVER
> DXE_SMM_DRIVER DXE_SAL_DRIVER UEFI_DRIVER UEFI_APPLICATION
> +#
> +####################################################################
> ############
> +
> +[Guids.common]
> + gDesignWareTokenSpaceGuid = { 0x89cb1241, 0xd283, 0x4543, { 0x88,
> 0x9c, 0x6b, 0x62, 0x36, 0x1a, 0x95, 0x7a } }
> + gDwEmacNetNonDiscoverableDeviceGuid = { 0x401950CD, 0xF9CD,
> 0x4A65, { 0xAD, 0x8E, 0x84, 0x9F, 0x3B, 0xAF, 0x23, 0x04 } }
> +
> +
> +[PcdsFixedAtBuild.common]
> + gDesignWareTokenSpaceGuid.PcdDwEmacDefaultMacAddress|0|UINT64|0x30
> 000050
> + gDesignWareTokenSpaceGuid.PcdDwEmacDxeBaseAddress|0|UINT32|0x30000
> 051
> +
> +
> diff --git a/Silicon/DesignWare/Drivers/DwEmacSnpDxe/DwEmacSnpDxe.inf
> b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/DwEmacSnpDxe.inf
> new file mode 100755
> index 000000000000..09e7f1e77f69
> --- /dev/null
> +++ b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/DwEmacSnpDxe.inf
> @@ -0,0 +1,82 @@
> +#/** @file
> +# DW Emac Simple Networking Protocol Driver (SNP) DXE Driver
> +#
> +# Copyright (c) 2011 - 2019, Intel Corporaton. 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.
> +#
> +# The original software modules are licensed as follows:
> +#
> +# Copyright (c) 2012-2014, ARM Limited. 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.
> +#
> +#**/
> +[Defines]
> + INF_VERSION = 0x00010005
> + BASE_NAME = DwEmacSnpDxe
> + FILE_GUID = 06f3315f-9fe6-4938-b83f-
> 2c072af802ba
> + MODULE_TYPE = DXE_DRIVER
> + VERSION_STRING = 0.1
> + ENTRY_POINT = DwEmacSnpDxeEntry
> +
> +[Sources.common]
> + ComponentName.c
> + DriverBinding.c
> + DwEmacSnpDxe.c
> + EmacDxeUtil.c
> + PhyDxeUtil.c
> + DwEmacSnpDxe.h
> + EmacDxeUtil.h
> + PhyDxeUtil.h
> +
> +[Packages]
> + ArmPkg/ArmPkg.dec
> + EmbeddedPkg/EmbeddedPkg.dec
> + NetworkPkg/NetworkPkg.dec
> + MdeModulePkg/MdeModulePkg.dec
> + MdePkg/MdePkg.dec
> + Silicon/DesignWare/DesignWare.dec
> +
> +[LibraryClasses]
> + BaseLib
> + UefiLib
> + NetLib
> + UefiDriverEntryPoint
> + BaseMemoryLib
> + ArmLib
> + IoLib
> + TimerLib
> + DevicePathLib
> + DebugLib
> + PrintLib
> + NonDiscoverableDeviceRegistrationLib
> + DmaLib
> +
> +[Protocols]
> + gEfiSimpleNetworkProtocolGuid
> + gEfiMetronomeArchProtocolGuid
> + gEfiPxeBaseCodeProtocolGuid
> + gEfiDevicePathProtocolGuid
> + gEfiDriverBindingProtocolGuid
> + gEdkiiNonDiscoverableDeviceProtocolGuid
> +
> +[Guids]
> + gDwEmacNetNonDiscoverableDeviceGuid
> +
> +[Pcd]
> + gDesignWareTokenSpaceGuid.PcdDwEmacDefaultMacAddress
> + gDesignWareTokenSpaceGuid.PcdDwEmacDxeBaseAddress
> +
> +[Depex]
> + TRUE
> diff --git a/Silicon/DesignWare/Drivers/DwEmacSnpDxe/DwEmacSnpDxe.h
> b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/DwEmacSnpDxe.h
> new file mode 100755
> index 000000000000..677fdad8bd5d
> --- /dev/null
> +++ b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/DwEmacSnpDxe.h
> @@ -0,0 +1,229 @@
> +/** @file
> +
> + Copyright (c) 2011 - 2019, Intel Corporaton. 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.
> +
> + The original software modules are licensed as follows:
> +
> + Copyright (c) 2012-2014, ARM Limited. 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 3 Clause LICENSE ON AN
> "AS IS" BASIS,
> + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS
> OR IMPLIED.
> +**/
> +
> +
> +#ifndef __DWEMAC_SNP_DXE_H__
> +#define __DWEMAC_SNP_DXE_H__
> +
> +#include <Uefi.h>
> +#include <Uefi/UefiSpec.h>
> +#include <Base.h>
> +
> +// Protocols used by this driver
> +#include <Protocol/SimpleNetwork.h>
> +#include <Protocol/ComponentName2.h>
> +#include <Protocol/PxeBaseCode.h>
> +#include <Protocol/DevicePath.h>
> +#include <Protocol/NonDiscoverableDevice.h>
> +
> +// Libraries used by this driver
> +#include <Library/UefiLib.h>
> +#include <Library/DebugLib.h>
> +#include <Library/UefiBootServicesTableLib.h>
> +#include <Library/MemoryAllocationLib.h>
> +#include <Library/IoLib.h>
> +#include <Library/PcdLib.h>
> +#include <Library/NetLib.h>
> +#include <Library/DevicePathLib.h>
> +#include <Library/ArmLib.h>
> +#include <Library/PrintLib.h>
> +#include <Library/DmaLib.h>
> +
> +#include "PhyDxeUtil.h"
> +#include "EmacDxeUtil.h"
> +
> +/*----------------------------------------------------------------
> --------------
> + Information Structure
> +------------------------------------------------------------------
> ------------*/
> +
> +typedef struct {
> + MAC_ADDR_DEVICE_PATH MacAddrDP;
> + EFI_DEVICE_PATH_PROTOCOL End;
> +} EFI_SIMPLE_NETWORK_DEVICE_PATH;
> +
> +typedef struct {
> + // Driver signature
> + UINT32 Signature;
> + EFI_HANDLE ControllerHandle;
> +
> + // EFI SNP protocol instances
> + EFI_SIMPLE_NETWORK_PROTOCOL Snp;
> + EFI_SIMPLE_NETWORK_MODE SnpMode;
> +
> + // EFI Snp statistics instance
> + EFI_NETWORK_STATISTICS Stats;
> +
> + EMAC_DRIVER MacDriver;
> + PHY_DRIVER PhyDriver;
> +
> + NON_DISCOVERABLE_DEVICE *Dev;
> +
> + EFI_LOCK Lock;
> +
> + // Array of the recycled transmit buffer address
> + UINT64 *RecycledTxBuf;
> +
> + // The maximum number of recycled buffer pointers in
> RecycledTxBuf.
> + UINT32 MaxRecycledTxBuf;
> +
> + // Current number of recycled buffer pointers in RecycledTxBuf.
> + UINT32 RecycledTxBufCount;
> +
> + // For DmaUnmap
> + VOID *MappingTxdesc;
> + VOID *MappingRxdesc;
> + VOID *MappingTxbuf;
> + VOID *MappingRxbuf;
> +
> +} EFI_SIMPLE_NETWORK_DRIVER;
> +
> +extern EFI_COMPONENT_NAME_PROTOCOL gSnpComponentName;
> +extern EFI_COMPONENT_NAME2_PROTOCOL gSnpComponentName2;
> +
> +
> +#define SNP_DRIVER_SIGNATURE SIGNATURE_32('A',
> 'S', 'N', 'P')
> +#define INSTANCE_FROM_SNP_THIS(a) CR(a,
> EFI_SIMPLE_NETWORK_DRIVER, Snp, SNP_DRIVER_SIGNATURE)
> +#define SNP_TX_BUFFER_INCREASEMENT 32
> +#define SNP_MAX_TX_BUFFER_NUM 65536
> +
> +/*----------------------------------------------------------------
> -----------------------------------------------------
> +
> + UEFI-Compliant functions for EFI_SIMPLE_NETWORK_PROTOCOL
> +
> + Refer to the Simple Network Protocol section (21.1) in the UEFI
> 2.3.1 Specification for related definitions
> +
> +------------------------------------------------------------------
> ---------------------------------------------------*/
> +
> +EFI_STATUS
> +EFIAPI
> +SnpStart (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +SnpStop (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +SnpInitialize (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,
> + IN UINTN ExtraRxBufferSize OPTIONAL,
> + IN UINTN ExtraTxBufferSize OPTIONAL
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +SnpReset (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,
> + IN BOOLEAN ExtendedVerification
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +SnpShutdown (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +SnpReceiveFilters (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,
> + IN UINT32 Enable,
> + IN UINT32 Disable,
> + IN BOOLEAN ResetMCastFilter,
> + IN UINTN MCastFilterCnt OPTIONAL,
> + IN EFI_MAC_ADDRESS *MCastFilter OPTIONAL
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +SnpStationAddress (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,
> + IN BOOLEAN Reset,
> + IN EFI_MAC_ADDRESS *NewMac
> +);
> +
> +EFI_STATUS
> +EFIAPI
> +SnpStatistics (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,
> + IN BOOLEAN Reset,
> + IN OUT UINTN *StatSize,
> + OUT EFI_NETWORK_STATISTICS *Statistics
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +SnpMcastIptoMac (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,
> + IN BOOLEAN IsIpv6,
> + IN EFI_IP_ADDRESS *Ip,
> + OUT EFI_MAC_ADDRESS *McastMac
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +SnpNvData (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,
> + IN BOOLEAN ReadWrite,
> + IN UINTN Offset,
> + IN UINTN BufferSize,
> + IN OUT VOID *Buffer
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +SnpGetStatus (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,
> + OUT UINT32 *IrqStat OPTIONAL,
> + OUT VOID **TxBuff OPTIONAL
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +SnpTransmit (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,
> + IN UINTN HdrSize,
> + IN UINTN BuffSize,
> + IN VOID* Data,
> + IN EFI_MAC_ADDRESS *SrcAddr OPTIONAL,
> + IN EFI_MAC_ADDRESS *DstAddr OPTIONAL,
> + IN UINT16 *Protocol OPTIONAL
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +SnpReceive (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,
> + OUT UINTN *HdrSize OPTIONAL,
> + IN OUT UINTN *BuffSize,
> + OUT VOID *Data,
> + OUT EFI_MAC_ADDRESS *SrcAddr OPTIONAL,
> + OUT EFI_MAC_ADDRESS *DstAddr OPTIONAL,
> + OUT UINT16 *Protocol OPTIONAL
> + );
> +
> +#endif // __DWEMAC_SNP_DXE_H__
> diff --git a/Silicon/DesignWare/Drivers/DwEmacSnpDxe/EmacDxeUtil.h
> b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/EmacDxeUtil.h
> new file mode 100755
> index 000000000000..872923252e73
> --- /dev/null
> +++ b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/EmacDxeUtil.h
> @@ -0,0 +1,392 @@
> +/** @file
> +
> + Copyright (c) 2011 - 2019, Intel Corporaton. 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.
> +
> + The original software modules are licensed as follows:
> +
> + Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.
> + Copyright (c) 2011 - 2014, ARM Limited. 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 3 Clause LICENSE ON AN
> "AS IS" BASIS,
> + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS
> OR IMPLIED.
> +**/
> +
> +
> +#ifndef __EMAC_DXE_UTIL_H__
> +#define __EMAC_DXE_UTIL_H__
> +
> +#include <libfdt.h>
> +#include <Library/BaseMemoryLib.h>
> +#include <Library/UefiLib.h>
> +#include <Library/DebugLib.h>
> +#include <Library/IoLib.h>
> +#include <Library/MemoryAllocationLib.h>
> +#include <Library/PcdLib.h>
> +#include <Library/PrintLib.h>
> +#include <Library/TimerLib.h>
> +#include <Library/NetLib.h>
> +#include <Library/ArmLib.h>
> +
> +// Protocols used by this driver
> +#include <Protocol/SimpleNetwork.h>
> +#include <Protocol/ComponentName2.h>
> +#include <Protocol/PxeBaseCode.h>
> +#include <Protocol/DevicePath.h>
> +
> +
> +// Most common CRC32 Polynomial for little endian machines
> +#define CRC_POLYNOMIAL 0xEDB88320
> +#define HASH_TABLE_REG(n) 0x500 + (0x4 * n)
> +#define RX_MAX_PACKET 1600
> +
> +#define CONFIG_ETH_BUFSIZE 2048
> +#define CONFIG_TX_DESCR_NUM 10
> +#define CONFIG_RX_DESCR_NUM 10
> +#define TX_TOTAL_BUFSIZE (CONFIG_ETH_BUFSIZE *
> CONFIG_TX_DESCR_NUM)
> +#define RX_TOTAL_BUFSIZE (CONFIG_ETH_BUFSIZE *
> CONFIG_RX_DESCR_NUM)
> +
> +// DMA status error bit
> +#define RX_DMA_WRITE_DATA_TRANSFER_ERROR 0x0
> +#define TX_DMA_READ_DATA_TRANSFER_ERROR 0x3
> +#define RX_DMA_DESCRIPTOR_WRITE_ACCESS_ERROR 0x4
> +#define TX_DMA_DESCRIPTOR_WRITE_ACCESS_ERROR 0x5
> +#define RX_DMA_DESCRIPTOR_READ_ACCESS_ERROR 0x6
> +#define TX_DMA_DESCRIPTOR_READ_ACCESS_ERROR 0x7
> +
> +// tx descriptor
> +#define TDES0_OWN BIT31
> +#define TDES0_TXINT BIT30
> +#define TDES0_TXLAST BIT29
> +#define TDES0_TXFIRST BIT28
> +#define TDES0_TXCRCDIS BIT27
> +#define TDES0_TXRINGEND BIT21
> +#define TDES0_TXCHAIN BIT20
> +
> +#define TDES1_SIZE1MASK (0x1FFF << 0)
> +#define TDES1_SIZE1SHFT (0)
> +#define TDES1_SIZE2MASK (0x1FFF << 16)
> +#define TDES1_SIZE2SHFT (16)
> +
> +// rx descriptor
> +#define RDES0_FL_MASK 0x3fff
> +#define RDES0_FL_SHIFT 16
> +#define RDES1_CHAINED BIT14
> +
> +#define RDES0_CE BIT1
> +#define RDES0_DBE BIT2
> +#define RDES0_RE BIT3
> +#define RDES0_RWT BIT4
> +#define RDES0_LC BIT6
> +#define RDES0_GF BIT7
> +#define RDES0_OE BIT11
> +#define RDES0_LE BIT12
> +#define RDES0_SAF BIT13
> +#define RDES0_DE BIT14
> +#define RDES0_ES BIT15
> +#define RDES0_AFM BIT30
> +#define RDES0_OWN BIT31
> +
> +
> +// emac config phy interface setting
> +#define PHY_INTERFACE_MODE_GMII 0
> +#define PHY_INTERFACE_MODE_MII 1
> +#define PHY_INTERFACE_MODE_RGMII 2
> +#define PHY_INTERFACE_MODE_RMII 3
> +
> +// DW emac mask
> +#define DW_EMAC_DMAGRP_BUS_MODE_SWR_SET_MSK 0x00000001
> +#define DW_EMAC_DMAGRP_BUS_MODE_FB_SET_MSK 0x00010000
> +#define DW_EMAC_DMAGRP_BUS_MODE_PBL_SET_MSK 0x00003f00
> +#define DW_EMAC_DMAGRP_BUS_MODE_PR_SET_MSK 0x0000c000
> +#define DW_EMAC_DMAGRP_OPERATION_MODE_FTF_SET_MSK 0x00100000
> +#define DW_EMAC_DMAGRP_OPERATION_MODE_TSF_SET_MSK 0x00200000
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_TIE_SET_MSK 0x00000001
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_RIE_SET_MSK 0x00000040
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_NIE_SET_MSK 0x00010000
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_AIE_SET_MSK 0x00008000
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_FBE_SET_MSK 0x00002000
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_UNE_SET_MSK 0x00000020
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_TSE_SET_MSK 0x00000002
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_TUE_SET_MSK 0x00000004
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_TJE_SET_MSK 0x00000008
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_OVE_SET_MSK 0x00000010
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_RUE_SET_MSK 0x00000080
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_RSE_SET_MSK 0x00000100
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_RWE_SET_MSK 0x00000200
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_ETE_SET_MSK 0x00000400
> +#define DW_EMAC_DMAGRP_INTERRUPT_ENABLE_ERE_SET_MSK 0x00004000
> +#define DW_EMAC_DMAGRP_OPERATION_MODE_ST_SET_MSK 0x00002000
> +#define DW_EMAC_DMAGRP_OPERATION_MODE_SR_SET_MSK 0x00000002
> +#define DW_EMAC_GMACGRP_MAC_CONFIGURATION_RE_SET_MSK 0x00000004
> +#define DW_EMAC_GMACGRP_MAC_CONFIGURATION_TE_SET_MSK 0x00000008
> +#define DW_EMAC_GMACGRP_MAC_FRAME_FILTER_RESET 0x00000000
> +#define DW_EMAC_GMACGRP_MAC_FRAME_FILTER_HMC_SET_MSK 0x00000004
> +#define DW_EMAC_GMACGRP_MAC_FRAME_FILTER_DBF_SET_MSK 0x00000020
> +#define DW_EMAC_GMACGRP_MAC_FRAME_FILTER_PR_SET_MSK 0x00000001
> +#define DW_EMAC_GMACGRP_MAC_FRAME_FILTER_PM_SET_MSK 0x00000010
> +#define DW_EMAC_DMAGRP_OPERATION_MODE_ST_CLR_MSK 0xffffdfff
> +#define DW_EMAC_GMACGRP_MAC_CONFIGURATION_RE_CLR_MSK 0xfffffffb
> +#define DW_EMAC_GMACGRP_MAC_CONFIGURATION_TE_CLR_MSK 0xfffffff7
> +#define DW_EMAC_DMAGRP_OPERATION_MODE_SR_CLR_MSK 0xfffffffd
> +#define DW_EMAC_DMAGRP_STATUS_NIS_SET_MSK 0x00010000
> +#define DW_EMAC_DMAGRP_STATUS_RI_SET_MSK 0x00000040
> +#define DW_EMAC_DMAGRP_STATUS_TI_SET_MSK 0x00000001
> +#define DW_EMAC_DMAGRP_STATUS_TU_SET_MSK 0x00000004
> +#define DW_EMAC_DMAGRP_STATUS_ERI_SET_MSK 0x00004000
> +#define DW_EMAC_DMAGRP_STATUS_AIS_SET_MSK 0x00008000
> +#define DW_EMAC_DMAGRP_STATUS_TPS_SET_MSK 0x00000002
> +#define DW_EMAC_DMAGRP_STATUS_TJT_SET_MSK 0x00000008
> +#define DW_EMAC_DMAGRP_STATUS_OVF_SET_MSK 0x00000010
> +#define DW_EMAC_DMAGRP_STATUS_UNF_SET_MSK 0x00000020
> +#define DW_EMAC_DMAGRP_STATUS_RU_SET_MSK 0x00000080
> +#define DW_EMAC_DMAGRP_STATUS_RPS_SET_MSK 0x00000100
> +#define DW_EMAC_DMAGRP_STATUS_RWT_SET_MSK 0x00000200
> +#define DW_EMAC_DMAGRP_STATUS_ETI_SET_MSK 0x00000400
> +#define DW_EMAC_DMAGRP_STATUS_FBI_SET_MSK 0x00002000
> +#define DW_EMAC_GMACGRP_MAC_CONFIGURATION_PS_SET_MSK 0x00008000
> +#define DW_EMAC_GMACGRP_MAC_CONFIGURATION_FES_SET_MSK 0x00004000
> +#define DW_EMAC_GMACGRP_MAC_CONFIGURATION_DM_SET_MSK 0x00000800
> +#define DW_EMAC_GMACGRP_MAC_CONFIGURATION_BE_SET_MSK 0x00200000
> +#define DW_EMAC_GMACGRP_MAC_CONFIGURATION_DO_SET_MSK 0x00002000
> +
> +#define DW_EMAC_DMAGRP_BUS_MODE_SWR_GET(value) (((value) &
> 0x00000001) >> 0)
> +#define DW_EMAC_DMAGRP_STATUS_EB_GET(value) (((value) & 0x03800000)
> >> 23)
> +#define DW_EMAC_GMACGRP_GMII_ADDRESS_GB_GET(value) (((value) &
> 0x00000001) >> 0)
> +#define DW_EMAC_GMACGRP_GMII_DATA_GD_GET(value) (((value) &
> 0x0000ffff) >> 0)
> +#define DW_EMAC_DMAGRP_OPERATION_MODE_FTF_GET(value) (((value) &
> 0x00100000) >> 20)
> +
> +// DW emac registers offset
> +//#define DWEMAC_OFST
> ((UINT3
> 2)PcdGet32 (PcdDwEmacDxeBaseAddress))
> +#define DW_EMAC_GMACGRP_MAC_CONFIGURATION_OFST
> 0x000
> +#define DW_EMAC_GMACGRP_MAC_FRAME_FILTER_OFST
> 0x004
> +#define DW_EMAC_GMACGRP_GMII_ADDRESS_OFST
> 0x010
> +#define DW_EMAC_GMACGRP_GMII_DATA_OFST
> 0x014
> +#define DW_EMAC_GMACGRP_FLOW_CONTROL_OFST
> 0x018
> +#define DW_EMAC_GMACGRP_VLAN_TAG_OFST
> 0x01c
> +#define DW_EMAC_GMACGRP_VERSION_OFST
> 0x020
> +#define DW_EMAC_GMACGRP_DEBUG_OFST
> 0x024
> +#define DW_EMAC_GMACGRP_LPI_CONTROL_STATUS_OFST
> 0x030
> +#define DW_EMAC_GMACGRP_LPI_TIMERS_CONTROL_OFST
> 0x034
> +#define DW_EMAC_GMACGRP_INTERRUPT_STATUS_OFST
> 0x038
> +#define DW_EMAC_GMACGRP_INTERRUPT_MASK_OFST
> 0x03c
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS0_HIGH_OFST
> 0x040
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS0_LOW_OFST
> 0x044
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS1_HIGH_OFST
> 0x048
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS1_LOW_OFST
> 0x04c
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS2_HIGH_OFST
> 0x050
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS2_LOW_OFST
> 0x054
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS3_HIGH_OFST
> 0x058
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS3_LOW_OFST
> 0x05c
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS4_HIGH_OFST
> 0x060
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS4_LOW_OFST
> 0x064
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS5_HIGH_OFST
> 0x068
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS5_LOW_OFST
> 0x06c
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS6_HIGH_OFST
> 0x070
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS6_LOW_OFST
> 0x074
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS7_HIGH_OFST
> 0x078
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS7_LOW_OFST
> 0x07c
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS8_HIGH_OFST
> 0x080
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS8_LOW_OFST
> 0x084
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS9_HIGH_OFST
> 0x088
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS9_LOW_OFST
> 0x08c
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS10_HIGH_OFST
> 0x090
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS10_LOW_OFST
> 0x094
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS11_HIGH_OFST
> 0x098
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS11_LOW_OFST
> 0x09c
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS12_HIGH_OFST
> 0x0a0
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS12_LOW_OFST
> 0x0a4
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS13_HIGH_OFST
> 0x0a8
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS13_LOW_OFST
> 0x0ac
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS14_HIGH_OFST
> 0x0b0
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS14_LOW_OFST
> 0x0b4
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS15_HIGH_OFST
> 0x0b8
> +#define DW_EMAC_GMACGRP_MAC_ADDRESS15_LOW_OFST
> 0x0bc
> +#define DW_EMAC_GMACGRP_SGMII_RGMII_SMII_CONTROL_STATUS_OFST
> 0x0d8
> +#define DW_EMAC_GMACGRP_WDOG_TIMEOUT_OFST
> 0x0dc
> +#define DW_EMAC_GMACGRP_GENPIO_OFST
> 0x0e0
> +#define DW_EMAC_GMACGRP_MMC_CONTROL_OFST
> 0X100
> +#define DW_EMAC_GMACGRP_MMC_RECEIVE_INTERRUPT_OFST
> 0x104
> +#define DW_EMAC_GMACGRP_MMC_TRANSMIT_INTERRUPT_OFST
> 0x108
> +#define DW_EMAC_GMACGRP_MMC_RECEIVE_INTERRUPT_MASK_OFST
> 0x10c
> +#define DW_EMAC_GMACGRP_MMC_TRANSMIT_INTERRUPT_MASK_OFST
> 0x110
> +#define DW_EMAC_GMACGRP_TXOCTETCOUNT_GB_OFST
> 0x114
> +#define DW_EMAC_GMACGRP_TXFRAMECOUNT_GB_OFST
> 0x118
> +#define DW_EMAC_GMACGRP_TXBROADCASTFRAMES_G_OFST
> 0x11c
> +#define DW_EMAC_GMACGRP_TXMULTICASTFRAMES_G_OFST
> 0x120
> +#define DW_EMAC_GMACGRP_TXUNICASTFRAMES_GB_OFST
> 0x13c
> +#define DW_EMAC_GMACGRP_TXLATECOL_OFST
> 0x158
> +#define DW_EMAC_GMACGRP_TXEXESSCOL_OFST
> 0x15c
> +#define DW_EMAC_GMACGRP_TXFRAMECOUNT_G_OFST
> 0x168
> +#define DW_EMAC_GMACGRP_TXOVERSIZE_G_OFST
> 0x178
> +#define DW_EMAC_GMACGRP_RXFRAMECOUNT_GB_OFST
> 0x180
> +#define DW_EMAC_GMACGRP_RXOCTETCOUNT_GB_OFST
> 0x184
> +#define DW_EMAC_GMACGRP_RXBROADCASTFRAMES_G_OFST
> 0x18c
> +#define DW_EMAC_GMACGRP_RXMULTICASTFRAMES_G_OFST
> 0x190
> +#define DW_EMAC_GMACGRP_RXCRCERROR_OFST
> 0x194
> +#define DW_EMAC_GMACGRP_RXUNDERSIZE_G_OFST
> 0x1a4
> +#define DW_EMAC_GMACGRP_RXOVERSIZE_G_OFST
> 0x1a8
> +#define DW_EMAC_GMACGRP_RXUNICASTFRAMES_G_OFST
> 0x1c4
> +#define DW_EMAC_DMAGRP_BUS_MODE_OFST
> 0x1000
> +#define DW_EMAC_DMAGRP_TRANSMIT_POLL_DEMAND_OFST
> 0x1004
> +#define DW_EMAC_DMAGRP_RECEIVE_POLL_DEMAND_OFST
> 0x1008
> +#define
> DW_EMAC_DMAGRP_RECEIVE_DESCRIPTOR_LIST_ADDRESS_OFST 0x100
> c
> +#define
> DW_EMAC_DMAGRP_TRANSMIT_DESCRIPTOR_LIST_ADDRESS_OFST 0x101
> 0
> +#define
> DW_EMAC_DMAGRP_STATUS_OFST 0x101
> 4
> +#define
> DW_EMAC_DMAGRP_OPERATION_MODE_OFST 0x101
> 8
> +#define
> DW_EMAC_DMAGRP_INTERRUPT_ENABLE_OFST 0x101
> c
> +#define
> DW_EMAC_DMAGRP_MISSED_FRAME_AND_BUFFER_OVERFLOW_COUNTER_OFST 0x102
> 0
> +#define
> DW_EMAC_DMAGRP_RECEIVE_INTERRUPT_WATCHDOG_TIMER_OFST 0x102
> 4
> +#define
> DW_EMAC_DMAGRP_AXI_BUS_MODE_OFST 0x102
> 8
> +#define
> DW_EMAC_DMAGRP_AHB_OR_AXI_STATUS_OFST 0x102
> c
> +#define DW_EMAC_DMAGRP_CURRENT_HOST_TRANSMIT_DESCRIPTOR_OFST
> 0x1048
> +#define DW_EMAC_DMAGRP_CURRENT_HOST_RECEIVE_DESCRIPTOR_OFST
> 0x104c
> +#define DW_EMAC_DMAGRP_CURRENT_HOST_TRANSMIT_BUFFER_ADDRESS_OFST
> 0x1050
> +#define DW_EMAC_DMAGRP_CURRENT_HOST_RECEIVE_BUFFER_ADDRESS_OFST
> 0x1054
> +#define DW_EMAC_DMAGRP_HW_FEATURE_OFST
> 0x1058
> +
> +typedef struct {
> + UINT32 Tdes0;
> + UINT32 Tdes1;
> + UINT32 Addr;
> + UINT32 AddrNext;
> +} DESIGNWARE_HW_DESCRIPTOR;
> +
> +
> +typedef struct {
> + DESIGNWARE_HW_DESCRIPTOR *TxdescRing[CONFIG_TX_DESCR_NUM];
> + DESIGNWARE_HW_DESCRIPTOR *RxdescRing[CONFIG_RX_DESCR_NUM];
> + CHAR8 *TxBuffer[TX_TOTAL_BUFSIZE];
> + CHAR8 *RxBuffer[RX_TOTAL_BUFSIZE];
> + EFI_PHYSICAL_ADDRESS TxdescRingMap[CONFIG_TX_DESCR_NUM];
> + EFI_PHYSICAL_ADDRESS RxdescRingMap[CONFIG_RX_DESCR_NUM];
> + EFI_PHYSICAL_ADDRESS TxBufferMap[TX_TOTAL_BUFSIZE];
> + EFI_PHYSICAL_ADDRESS RxBufferMap[RX_TOTAL_BUFSIZE];
> + UINT32 TxCurrentDescriptorNum;
> + UINT32 TxNextDescriptorNum;
> + UINT32 RxCurrentDescriptorNum;
> + UINT32 RxNextDescriptorNum;
> +} EMAC_DRIVER;
> +
> +VOID
> +EFIAPI
> +EmacChooseInterface (
> + IN UINT32 MacInterface
> + );
> +
> +VOID
> +EFIAPI
> +EmacSetMacAddress (
> + IN EFI_MAC_ADDRESS *MacAddress,
> + IN UINT32 MacBaseAddress
> + );
> +
> +VOID
> +EFIAPI
> +EmacReadMacAddress (
> + OUT EFI_MAC_ADDRESS *MacAddress,
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +EmacDxeInitialization (
> + IN EMAC_DRIVER *EmacDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +EmacDmaInit (
> + IN EMAC_DRIVER *EmacDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +EmacSetupTxdesc (
> + IN EMAC_DRIVER *EmacDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +EmacSetupRxdesc (
> + IN EMAC_DRIVER *EmacDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +VOID
> +EFIAPI
> +EmacStartTransmission (
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +EmacRxFilters (
> + IN UINT32 ReceiveFilterSetting,
> + IN BOOLEAN Reset,
> + IN UINTN NumMfilter OPTIONAL,
> + IN EFI_MAC_ADDRESS *Mfilter OPTIONAL,
> + IN UINT32 MacBaseAddress
> + );
> +
> +UINT32
> +EFIAPI
> +GenEtherCrc32 (
> + IN EFI_MAC_ADDRESS *Mac,
> + IN UINT32 AddrLen
> + );
> +
> +UINT8
> +EFIAPI
> +BitReverse (
> + UINT8 X
> + );
> +
> +VOID
> +EFIAPI
> +EmacStopTxRx (
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +EmacDmaStart (
> + IN UINT32 MacBaseAddress
> + );
> +
> +VOID
> +EFIAPI
> +EmacGetDmaStatus (
> + OUT UINT32 *IrqStat OPTIONAL,
> + IN UINT32 MacBaseAddress
> + );
> +
> +VOID
> +EFIAPI
> +EmacGetStatistic (
> + IN EFI_NETWORK_STATISTICS* Stats,
> + IN UINT32 MacBaseAddress
> + );
> +
> +VOID
> +EFIAPI
> +EmacConfigAdjust (
> + IN UINT32 Speed,
> + IN UINT32 Duplex,
> + IN UINT32 MacBaseAddress
> + );
> +
> +#endif // __EMAC_DXE_UTIL_H__
> diff --git a/Silicon/DesignWare/Drivers/DwEmacSnpDxe/PhyDxeUtil.h
> b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/PhyDxeUtil.h
> new file mode 100755
> index 000000000000..6fff3d61688a
> --- /dev/null
> +++ b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/PhyDxeUtil.h
> @@ -0,0 +1,341 @@
> +/** @file
> +
> + Copyright (c) 2011 - 2019, Intel Corporaton. 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.
> +
> + The original software modules are licensed as follows:
> +
> + Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.
> + Copyright (c) 2011 - 2014, ARM Limited. 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 3 Clause LICENSE ON AN
> "AS IS" BASIS,
> + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS
> OR IMPLIED.
> +**/
> +
> +
> +#ifndef __PHY_DXE_H__
> +#define __PHY_DXE_H__
> +
> +#include <libfdt.h>
> +#include <Library/BaseMemoryLib.h>
> +#include <Library/DebugLib.h>
> +#include <Library/IoLib.h>
> +#include <Library/MemoryAllocationLib.h>
> +#include <Library/PcdLib.h>
> +#include <Library/PrintLib.h>
> +#include <Library/TimerLib.h>
> +
> +typedef struct {
> + UINT32 PhyAddr;
> + UINT32 PhyCurrentLink;
> + UINT32 PhyOldLink;
> +} PHY_DRIVER;
> +
> +
> +//
> +// PHY Registers
> +//
> +#define PHY_BASIC_CTRL 0
> +#define PHY_BASIC_STATUS 1
> +#define PHY_ID1 2
> +#define PHY_ID2 3
> +#define PHY_AUTO_NEG_ADVERT 4
> +#define PHY_AUTO_NEG_LINK_ABILITY 5
> +#define PHY_AUTO_NEG_EXP 6
> +#define PHY_1000BASE_T_CONTROL 9
> +#define PHY_1000BASE_T_STATUS 10
> +#define PHY_MODE 17
> +#define PHY_SPECIAL_MODES 18
> +#define PHY_SPECIAL_CTLR 27
> +#define PHY_INT_SRC 29
> +#define PHY_INT_MASK 30
> +#define PHY_SPECIAL_PHY_CTLR 31
> +
> +// PHY control register bits
> +#define
> PHYCTRL_COLL_TEST BIT7 //
> Collision test enable
> +#define
> PHYCTRL_DUPLEX_MODE BIT8 // Set
> Duplex Mode
> +#define
> PHYCTRL_RST_AUTO BIT9 //
> Restart Auto-Negotiation of Link abilities
> +#define
> PHYCTRL_PD BIT11 //
> Power-Down switch
> +#define
> PHYCTRL_AUTO_EN BIT12 //
> Auto-Negotiation Enable
> +#define
> PHYCTRL_SPEED_SEL BIT13 // Link
> Speed Selection
> +#define
> PHYCTRL_LOOPBK BIT14 // Set
> loopback mode
> +#define
> PHYCTRL_RESET BIT15 // Do a
> PHY reset
> +
> +// PHY status register bits
> +#define
> PHYSTS_EXT_CAP BIT0 //
> Extended Capabilities Register capability
> +#define
> PHYSTS_JABBER BIT1 // Jabber
> condition detected
> +#define
> PHYSTS_LINK_STS BIT2 // Link
> Status
> +#define
> PHYSTS_AUTO_CAP BIT3 // Auto-
> Negotiation Capability
> +#define
> PHYSTS_REMOTE_FAULT BIT4 // Remote
> fault detected
> +#define
> PHYSTS_AUTO_COMP BIT5 // Auto-
> Negotiation Completed
> +#define
> PHYSTS_10BASET_HDPLX BIT11 // 10Mbps
> Half-Duplex ability
> +#define
> PHYSTS_10BASET_FDPLX BIT12 // 10Mbps
> Full-Duplex ability
> +#define
> PHYSTS_100BASETX_HDPLX BIT13 //
> 100Mbps Half-Duplex ability
> +#define
> PHYSTS_100BASETX_FDPLX BIT14 //
> 100Mbps Full-Duplex ability
> +#define
> PHYSTS_100BASE_T4 BIT15 // Base
> T4 ability
> +
> +// PHY Auto-Negotiation advertisement
> +#define
> PHYANA_SEL_MASK ((UINT32)0x1F) // Link
> type selector
> +#define
> PHYANA_10BASET BIT5 //
> Advertise 10BASET capability
> +#define
> PHYANA_10BASETFD BIT6 //
> Advertise 10BASET Full duplex capability
> +#define
> PHYANA_100BASETX BIT7 //
> Advertise 100BASETX capability
> +#define
> PHYANA_100BASETXFD BIT8 //
> Advertise 100 BASETX Full duplex capability
> +#define PHYANA_PAUSE_OP_MASK (3 <<
> 10) // Advertise PAUSE frame capability
> +#define
> PHYANA_REMOTE_FAULT BIT13 // Remote
> fault detected
> +
> +#define PHYLPA_SLCT 0x001f //
> Same as advertise selector
> +#define PHYLPA_10HALF 0x0020 //
> Can do 10mbps half-duplex
> +#define PHYLPA_1000XFULL 0x0020 //
> Can do 1000BASE-X full-duplex
> +#define PHYLPA_10FULL 0x0040 //
> Can do 10mbps full-duplex
> +#define PHYLPA_1000XHALF 0x0040 //
> Can do 1000BASE-X half-duplex
> +#define PHYLPA_100HALF 0x0080 //
> Can do 100mbps half-duplex
> +#define PHYLPA_1000XPAUSE 0x0080 //
> Can do 1000BASE-X pause
> +#define PHYLPA_100FULL 0x0100 //
> Can do 100mbps full-duplex
> +#define PHYLPA_1000XPAUSE_ASYM 0x0100 //
> Can do 1000BASE-X pause asym
> +#define PHYLPA_100BASE4 0x0200 //
> Can do 100mbps 4k packets
> +#define PHYLPA_PAUSE_CAP 0x0400 //
> Can pause
> +#define PHYLPA_PAUSE_ASYM 0x0800 //
> Can pause asymetrically
> +#define PHYLPA_RESV 0x1000 //
> Unused
> +#define PHYLPA_RFAULT 0x2000 //
> Link partner faulted
> +#define PHYLPA_LPACK 0x4000 // Link
> partner acked us
> +#define PHYLPA_NPAGE 0x8000 // Next page
> bit
> +
> +#define PHYLPA_DUPLEX (LPA_10FULL |
> LPA_100FULL)
> +#define PHYLPA_100 (LPA_100FULL |
> LPA_100HALF | LPA_100BASE4)
> +
> +// 1000BASE-T Status register
> +#define PHYLPA_1000FULL 0x0800 /*
> Link partner 1000BASE-T full duplex */
> +#define PHYLPA_1000HALF 0x0400 /*
> Link partner 1000BASE-T half duplex */
> +
> +// 1000BASE-T Control register
> +#define PHYADVERTISE_1000FULL 0x0200 /*
> Advertise 1000BASE-T full duplex */
> +#define PHYADVERTISE_1000HALF 0x0100 /*
> Advertise 1000BASE-T half duplex */
> +
> +#define SPEED_1000 1000
> +#define SPEED_100 100
> +#define SPEED_10 10
> +
> +#define DUPLEX_FULL 1
> +#define DUPLEX_HALF 0
> +
> +// PHY Super Special control/status
> +#define PHYSSCS_HCDSPEED_MASK (7 <<
> 2) // Speed indication
> +#define
> PHYSSCS_AUTODONE BIT12 // Auto-
> Negotiation Done
> +
> +// Flags for PHY reset
> +#define PHY_RESET_PMT BIT0
> +#define PHY_RESET_BCR BIT1
> +#define PHY_RESET_CHECK_LINK BIT2
> +
> +// Flags for auto negotiation
> +#define AUTO_NEGOTIATE_COLLISION_TEST BIT0
> +#define AUTO_NEGOTIATE_ADVERTISE_ALL BIT1
> +
> +
> +// Micrel KSZ9031 Extended registers
> +#define PHY_KSZ9031RN_CONTROL_PAD_SKEW_REG 4
> +#define PHY_KSZ9031RN_RX_DATA_PAD_SKEW_REG 5
> +#define PHY_KSZ9031RN_TX_DATA_PAD_SKEW_REG 6
> +#define PHY_KSZ9031RN_CLK_PAD_SKEW_REG 8
> +
> +// Data operations
> +#define PHY_KSZ9031_MOD_DATA_NO_POST_INC 0x1
> +#define PHY_KSZ9031_MOD_DATA_POST_INC_RW 0x2
> +#define PHY_KSZ9031_MOD_DATA_POST_INC_W 0x3
> +
> +#define PHY_KSZ9031RN_MMD_CTRL_REG 0x0d
> +#define PHY_KSZ9031RN_MMD_REGDATA_REG 0x0e
> +
> +#define PHY_KSZ9031RN_CLK_SKEW_CLR_MASK 0x3FF
> +#define PHY_KSZ9031RN_CONTROL_SKEW_CLR_MASK 0xFF
> +#define PHY_KSZ9031RN_RX_DATA_SKEW_CLR_MASK 0xFF
> +#define PHY_KSZ9031RN_TX_DATA_SKEW_CLR_MASK 0xFF
> +
> +#define PHY_KSZ9031RN_CLK_PAD_SKEW_VALUE 0x3FC
> +#define PHY_KSZ9031RN_CONTROL_PAD_SKEW_VALUE 0x70
> +#define PHY_KSZ9031RN_RX_DATA_PAD_SKEW_VALUE 0x7777
> +#define PHY_KSZ9031RN_TX_DATA_PAD_SKEW_VALUE 0x0
> +
> +
> +#define PHY_KSZ9031RN_DEV_ADDR 0x2
> +
> +// MMD Address 0h, Auto-Negotiation FLP burst transmit timing
> +#define PHY_KSZ9031RN_MMD_DEV_ADDR_00 0x00
> +#define PHY_KSZ9031RN_MMD_D0_FLP_LO_REG 3
> +#define PHY_KSZ9031RN_MMD_D0_FLP_16MS_LO 0x1A80
> +#define PHY_KSZ9031RN_MMD_D0_FLP_HI_REG 4
> +#define PHY_KSZ9031RN_MMD_D0_FLP_16MS_HI 0x0006
> +
> +// HPS MII
> +#define MII_BUSY (1 << 0)
> +#define MII_WRITE (1 << 1)
> +#define MII_CLKRANGE_60_100M (0x0)
> +#define MII_CLKRANGE_100_150M (0x4)
> +#define MII_CLKRANGE_20_35M (0x8)
> +#define MII_CLKRANGE_35_60M (0xC)
> +#define MII_CLKRANGE_150_250M (0x10)
> +#define MII_CLKRANGE_250_300M (0x14)
> +
> +#define MIIADDRSHIFT (11)
> +#define MIIREGSHIFT (6)
> +#define MII_REGMSK (0x1F << 6)
> +#define MII_ADDRMSK (0x1F << 11)
> +
> +// Others
> +#define PHY_INVALID_ID 0xFFFF
> +#define LINK_UP 1
> +#define LINK_DOWN 0
> +#define PHY_TIMEOUT 200000
> +
> +
> +EFI_STATUS
> +EFIAPI
> +PhyDxeInitialization (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +PhyDetectDevice (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +PhyConfig (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +PhySoftReset (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +PhyReadId (
> + IN UINT32 PhyAddr,
> + IN UINT32 MacBaseAddress
> + );
> +
> +VOID
> +EFIAPI
> +PhyConfigSkew (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +VOID
> +EFIAPI
> +PhyDisplayConfigSkew (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +VOID
> +EFIAPI
> +PhyConfigFlpBurstTiming (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +VOID
> +EFIAPI
> +PhyDisplayFlpBurstTiming (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +PhyAutoNego (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +PhyLinkAdjustEmacConfig (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +PhyCheckLinkStatus (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +PhyReadCapability (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32* Speed,
> + IN UINT32* Duplex,
> + IN UINT32 MacBaseAddress
> + );
> +
> +VOID
> +EFIAPI
> +PhyDisplayAbility (
> + IN UINT32 Speed,
> + IN UINT32 Duplex
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +PhyRead (
> + IN UINT32 Addr,
> + IN UINT32 Reg,
> + OUT UINT32 *Data,
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +PhyWrite (
> + IN UINT32 Addr,
> + IN UINT32 Reg,
> + IN UINT32 Data,
> + IN UINT32 MacBaseAddress
> + );
> +
> +EFI_STATUS
> +EFIAPI
> +Phy9031ExtendedWrite (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 Mode,
> + IN UINT32 DevAddr,
> + IN UINT32 Regnum,
> + IN UINT16 Val,
> + IN UINT32 MacBaseAddress
> + );
> +
> +UINT32
> +EFIAPI
> +Phy9031ExtendedRead (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 Mode,
> + IN UINT32 DevAddr,
> + IN UINT32 Regnum,
> + IN UINT32 MacBaseAddress
> + );
> +
> +
> +#endif /* __PHY_DXE_H__ */
> diff --git a/Silicon/DesignWare/Drivers/DwEmacSnpDxe/ComponentName.c
> b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/ComponentName.c
> new file mode 100755
> index 000000000000..08e91fae396e
> --- /dev/null
> +++ b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/ComponentName.c
> @@ -0,0 +1,327 @@
> +/** @file
> +Copyright (c) 2011 - 2019, Intel Corporaton. 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.
> +
> + The original software modules are licensed as follows:
> +
> + Copyright (c) 2006 - 2007, Intel Corporation. All rights
> reserved.<BR>
> + 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:
> +
> + ComponentName.c
> +
> +Abstract:
> +
> +
> +**/
> +
> +#include "DwEmacSnpDxe.h"
> +
> +//
> +// EFI Component Name Functions
> +//
> +/**
> + Retrieves a Unicode string that is the user readable name of the
> driver.
> +
> + This function retrieves the user readable name of a driver in the
> form of a
> + Unicode string. If the driver specified by This has a user
> readable name in
> + the language specified by Language, then a pointer to the driver
> name is
> + returned in DriverName, and EFI_SUCCESS is returned. If the driver
> specified
> + by This does not support the language specified by Language,
> + then EFI_UNSUPPORTED is returned.
> +
> + @param This[in] A pointer to the
> EFI_COMPONENT_NAME2_PROTOCOL or
> + EFI_COMPONENT_NAME_PROTOCOL
> instance.
> +
> + @param Language[in] A pointer to a Null-terminated ASCII
> string
> + array indicating the language. This
> is the
> + language of the driver name that the
> caller is
> + requesting, and it must match one of
> the
> + languages specified in
> SupportedLanguages. The
> + number of languages supported by a
> driver is up
> + to the driver writer. Language is
> specified
> + in RFC 4646 or ISO 639-2 language
> code format.
> +
> + @param DriverName[out] A pointer to the Unicode string to
> return.
> + This Unicode string is the name of
> the
> + driver specified by This in the
> language
> + specified by Language.
> +
> + @retval EFI_SUCCESS The Unicode string for the Driver
> specified by
> + This and the language specified by
> Language was
> + returned in DriverName.
> +
> + @retval EFI_INVALID_PARAMETER Language is NULL.
> +
> + @retval EFI_INVALID_PARAMETER DriverName is NULL.
> +
> + @retval EFI_UNSUPPORTED The driver specified by This does
> not support
> + the language specified by Language.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpGetDriverName (
> + IN EFI_COMPONENT_NAME_PROTOCOL *This,
> + IN CHAR8 *Language,
> + OUT CHAR16 **DriverName
> + );
> +
> +
> +/**
> + Retrieves a Unicode string that is the user readable name of the
> controller
> + that is being managed by a driver.
> +
> + This function retrieves the user readable name of the controller
> specified by
> + ControllerHandle and ChildHandle in the form of a Unicode string.
> If the
> + driver specified by This has a user readable name in the language
> specified by
> + Language, then a pointer to the controller name is returned in
> ControllerName,
> + and EFI_SUCCESS is returned. If the driver specified by This is
> not currently
> + managing the controller specified by ControllerHandle and
> ChildHandle,
> + then EFI_UNSUPPORTED is returned. If the driver specified by This
> does not
> + support the language specified by Language, then EFI_UNSUPPORTED
> is returned.
> +
> + @param This[in] A pointer to the
> EFI_COMPONENT_NAME2_PROTOCOL or
> + EFI_COMPONENT_NAME_PROTOCOL
> instance.
> +
> + @param ControllerHandle[in] The handle of a controller that the
> driver
> + specified by This is managing. This
> handle
> + specifies the controller whose name
> is to be
> + returned.
> +
> + @param ChildHandle[in] The handle of the child controller
> to retrieve
> + the name of. This is an optional
> parameter that
> + may be NULL. It will be NULL for
> device
> + drivers. It will also be NULL for a
> bus drivers
> + that wish to retrieve the name of
> the bus
> + controller. It will not be NULL for
> a bus
> + driver that wishes to retrieve the
> name of a
> + child controller.
> +
> + @param Language[in] A pointer to a Null-terminated ASCII
> string
> + array indicating the language. This
> is the
> + language of the driver name that the
> caller is
> + requesting, and it must match one of
> the
> + languages specified in
> SupportedLanguages. The
> + number of languages supported by a
> driver is up
> + to the driver writer. Language is
> specified in
> + RFC 4646 or ISO 639-2 language code
> format.
> +
> + @param ControllerName[out] A pointer to the Unicode string to
> return.
> + This Unicode string is the name of
> the
> + controller specified by
> ControllerHandle and
> + ChildHandle in the language
> specified by
> + Language from the point of view of
> the driver
> + specified by This.
> +
> + @retval EFI_SUCCESS The Unicode string for the user
> readable name in
> + the language specified by Language
> for the
> + driver specified by This was
> returned in
> + DriverName.
> +
> + @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid
> EFI_HANDLE.
> +
> + @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is
> not a valid
> + EFI_HANDLE.
> +
> + @retval EFI_INVALID_PARAMETER Language is NULL.
> +
> + @retval EFI_INVALID_PARAMETER ControllerName is NULL.
> +
> + @retval EFI_UNSUPPORTED The driver specified by This is not
> currently
> + managing the controller specified by
> + ControllerHandle and ChildHandle.
> +
> + @retval EFI_UNSUPPORTED The driver specified by This does
> not support
> + the language specified by Language.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpGetControllerName (
> + IN EFI_COMPONENT_NAME_PROTOCOL *This,
> + IN EFI_HANDLE ControllerHand
> le,
> + IN EFI_HANDLE ChildHandle
> OPTIONAL,
> + IN CHAR8 *Language,
> + OUT
> CHAR16 **ControllerName
> + );
> +
> +
> +//
> +// EFI Component Name Protocol
> +//
> +GLOBAL_REMOVE_IF_UNREFERENCED
> EFI_COMPONENT_NAME_PROTOCOL gSnpComponentName = {
> + SnpGetDriverName,
> + SnpGetControllerName,
> + "eng"
> +};
> +
> +//
> +// EFI Component Name 2 Protocol
> +//
> +GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL
> gSnpComponentName2 = {
> + (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) SnpGetDriverName,
> + (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) SnpGetControllerName,
> + "en"
> +};
> +
> +
> +GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
> mSnpNameTable[] = {
> + {
> + "eng;en",
> + L"SNP DesignWare EMAC Driver"
> + },
> + {
> + NULL,
> + NULL
> + }
> +};
> +
> +/**
> + Retrieves a Unicode string that is the user readable name of the
> driver.
> +
> + This function retrieves the user readable name of a driver in the
> form of a
> + Unicode string. If the driver specified by This has a user
> readable name in
> + the language specified by Language, then a pointer to the driver
> name is
> + returned in DriverName, and EFI_SUCCESS is returned. If the driver
> specified
> + by This does not support the language specified by Language,
> + then EFI_UNSUPPORTED is returned.
> +
> + @param This[in] A pointer to the
> EFI_COMPONENT_NAME2_PROTOCOL or
> + EFI_COMPONENT_NAME_PROTOCOL
> instance.
> +
> + @param Language[in] A pointer to a Null-terminated ASCII
> string
> + array indicating the language. This
> is the
> + language of the driver name that the
> caller is
> + requesting, and it must match one of
> the
> + languages specified in
> SupportedLanguages. The
> + number of languages supported by a
> driver is up
> + to the driver writer. Language is
> specified
> + in RFC 4646 or ISO 639-2 language
> code format.
> +
> + @param DriverName[out] A pointer to the Unicode string to
> return.
> + This Unicode string is the name of
> the
> + driver specified by This in the
> language
> + specified by Language.
> +
> + @retval EFI_SUCCESS The Unicode string for the Driver
> specified by
> + This and the language specified by
> Language was
> + returned in DriverName.
> +
> + @retval EFI_INVALID_PARAMETER Language is NULL.
> +
> + @retval EFI_INVALID_PARAMETER DriverName is NULL.
> +
> + @retval EFI_UNSUPPORTED The driver specified by This does
> not support
> + the language specified by Language.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpGetDriverName (
> + IN EFI_COMPONENT_NAME_PROTOCOL *This,
> + IN CHAR8 *Language,
> + OUT CHAR16 **DriverName
> + )
> +{
> + return LookupUnicodeString2 (
> + Language,
> + This->SupportedLanguages,
> + mSnpNameTable,
> + DriverName,
> + (BOOLEAN)(This == &gSnpComponentName)
> + );
> +}
> +
> +/**
> + Retrieves a Unicode string that is the user readable name of the
> controller
> + that is being managed by a driver.
> +
> + This function retrieves the user readable name of the controller
> specified by
> + ControllerHandle and ChildHandle in the form of a Unicode string.
> If the
> + driver specified by This has a user readable name in the language
> specified by
> + Language, then a pointer to the controller name is returned in
> ControllerName,
> + and EFI_SUCCESS is returned. If the driver specified by This is
> not currently
> + managing the controller specified by ControllerHandle and
> ChildHandle,
> + then EFI_UNSUPPORTED is returned. If the driver specified by This
> does not
> + support the language specified by Language, then EFI_UNSUPPORTED
> is returned.
> +
> + @param This[in] A pointer to the
> EFI_COMPONENT_NAME2_PROTOCOL or
> + EFI_COMPONENT_NAME_PROTOCOL
> instance.
> +
> + @param ControllerHandle[in] The handle of a controller that the
> driver
> + specified by This is managing. This
> handle
> + specifies the controller whose name
> is to be
> + returned.
> +
> + @param ChildHandle[in] The handle of the child controller
> to retrieve
> + the name of. This is an optional
> parameter that
> + may be NULL. It will be NULL for
> device
> + drivers. It will also be NULL for a
> bus drivers
> + that wish to retrieve the name of
> the bus
> + controller. It will not be NULL for
> a bus
> + driver that wishes to retrieve the
> name of a
> + child controller.
> +
> + @param Language[in] A pointer to a Null-terminated ASCII
> string
> + array indicating the language. This
> is the
> + language of the driver name that the
> caller is
> + requesting, and it must match one of
> the
> + languages specified in
> SupportedLanguages. The
> + number of languages supported by a
> driver is up
> + to the driver writer. Language is
> specified in
> + RFC 4646 or ISO 639-2 language code
> format.
> +
> + @param ControllerName[out] A pointer to the Unicode string to
> return.
> + This Unicode string is the name of
> the
> + controller specified by
> ControllerHandle and
> + ChildHandle in the language
> specified by
> + Language from the point of view of
> the driver
> + specified by This.
> +
> + @retval EFI_SUCCESS The Unicode string for the user
> readable name in
> + the language specified by Language
> for the
> + driver specified by This was
> returned in
> + DriverName.
> +
> + @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid
> EFI_HANDLE.
> +
> + @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is
> not a valid
> + EFI_HANDLE.
> +
> + @retval EFI_INVALID_PARAMETER Language is NULL.
> +
> + @retval EFI_INVALID_PARAMETER ControllerName is NULL.
> +
> + @retval EFI_UNSUPPORTED The driver specified by This is not
> currently
> + managing the controller specified by
> + ControllerHandle and ChildHandle.
> +
> + @retval EFI_UNSUPPORTED The driver specified by This does
> not support
> + the language specified by Language.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpGetControllerName (
> + IN EFI_COMPONENT_NAME_PROTOCOL *This,
> + IN EFI_HANDLE ControllerHand
> le,
> + IN EFI_HANDLE ChildHandle
> OPTIONAL,
> + IN CHAR8 *Language,
> + OUT
> CHAR16 **ControllerName
> + )
> +{
> + return EFI_UNSUPPORTED;
> +}
> diff --git a/Silicon/DesignWare/Drivers/DwEmacSnpDxe/DriverBinding.c
> b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/DriverBinding.c
> new file mode 100755
> index 000000000000..2b750c03d432
> --- /dev/null
> +++ b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/DriverBinding.c
> @@ -0,0 +1,450 @@
> +/** @file
> +
> + Copyright (c) 2011 - 2019, Intel Corporaton. 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.
> + **/
> +
> +#include "DwEmacSnpDxe.h"
> +
> +STATIC
> +EFI_STATUS
> +EFIAPI
> +DriverSupported (
> + IN EFI_DRIVER_BINDING_PROTOCOL *This,
> + IN EFI_HANDLE Controller,
> + IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
> + );
> +
> +STATIC
> +EFI_STATUS
> +EFIAPI
> +DriverStart (
> + IN EFI_DRIVER_BINDING_PROTOCOL *This,
> + IN EFI_HANDLE Controller,
> + IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
> + );
> +
> +STATIC
> +EFI_STATUS
> +EFIAPI
> +DriverStop (
> + IN EFI_DRIVER_BINDING_PROTOCOL *This,
> + IN EFI_HANDLE Controller,
> + IN UINTN NumberOfChildren,
> + IN EFI_HANDLE *ChildHandleBuffer
> + );
> +
> +STATIC EFI_DRIVER_BINDING_PROTOCOL mDriverBinding = {
> + DriverSupported,
> + DriverStart,
> + DriverStop,
> + 0xa,
> + NULL,
> + NULL
> +};
> +
> +EFI_SIMPLE_NETWORK_DEVICE_PATH PathTemplate = {
> + {
> + {
> + MESSAGING_DEVICE_PATH, MSG_MAC_ADDR_DP,
> + { (UINT8) (sizeof(MAC_ADDR_DEVICE_PATH)), (UINT8)
> ((sizeof(MAC_ADDR_DEVICE_PATH)) >> 8) }
> + },
> + { { 0 } },
> + 0
> + },
> + {
> + END_DEVICE_PATH_TYPE,
> + END_ENTIRE_DEVICE_PATH_SUBTYPE,
> + { sizeof(EFI_DEVICE_PATH_PROTOCOL), 0 }
> + }
> +};
> +
> +STATIC EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR mDwEmacNetDesc[] = {
> + {
> + ACPI_ADDRESS_SPACE_DESCRIPTOR, // Desc
> + sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) - 3, // Len
> + ACPI_ADDRESS_SPACE_TYPE_MEM, // ResType
> + 0, // GenFlag
> + 0, //
> SpecificFlag
> + 32, //
> AddrSpaceGranularity
> + FixedPcdGet32 (PcdDwEmacDxeBaseAddress), //
> AddrRangeMin
> + FixedPcdGet32 (PcdDwEmacDxeBaseAddress) +
> + SIZE_4KB - 1, //
> AddrRangeMax
> + 0, //
> AddrTranslationOffset
> + SIZE_4KB, // AddrLen
> + }, {
> + ACPI_ADDRESS_SPACE_DESCRIPTOR, // Desc
> + sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) - 3, // Len
> + ACPI_ADDRESS_SPACE_TYPE_MEM, // ResType
> + 0, // GenFlag
> + 0, //
> SpecificFlag
> + 32, //
> AddrSpaceGranularity
> + FixedPcdGet32 (PcdDwEmacDefaultMacAddress), //
> AddrRangeMin
> + FixedPcdGet32 (PcdDwEmacDefaultMacAddress), //
> AddrRangeMax
> + 0, //
> AddrTranslationOffset
> + 1, // AddrLen
> + }, {
> + ACPI_END_TAG_DESCRIPTOR // Desc
> + }
> +};
> +
> +STATIC
> +EFI_STATUS
> +RegisterDevice (
> + IN EFI_GUID *TypeGuid,
> + IN EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Desc,
> + OUT EFI_HANDLE *Handle
> + )
> +{
> + NON_DISCOVERABLE_DEVICE *Device;
> + EFI_STATUS Status;
> +
> + Device = (NON_DISCOVERABLE_DEVICE *)AllocateZeroPool (sizeof
> (*Device));
> + if (Device == NULL) {
> + return EFI_OUT_OF_RESOURCES;
> + }
> +
> + Device->Type = TypeGuid;
> + Device->DmaType = NonDiscoverableDeviceDmaTypeNonCoherent;
> + Device->Resources = Desc;
> +
> + Status = gBS->InstallMultipleProtocolInterfaces (Handle,
> + &gEdkiiNonDiscoverableDeviceProtocolGuid, Device,
> + NULL);
> + if (EFI_ERROR (Status)) {
> + goto FreeDevice;
> + }
> + return EFI_SUCCESS;
> +
> + FreeDevice:
> + FreePool (Device);
> +
> + return Status;
> +}
> +
> +
> +STATIC
> +EFI_STATUS
> +EFIAPI
> +DriverSupported (
> + IN EFI_DRIVER_BINDING_PROTOCOL *This,
> + IN EFI_HANDLE Controller,
> + IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
> + )
> +{
> + NON_DISCOVERABLE_DEVICE *Dev;
> + EFI_STATUS Status;
> +
> + // Connect to the non-discoverable device
> + Status = gBS->OpenProtocol (Controller,
> + &gEdkiiNonDiscoverableDeviceProtocolGu
> id,
> + (VOID **) &Dev,
> + This->DriverBindingHandle,
> + Controller,
> + EFI_OPEN_PROTOCOL_BY_DRIVER);
> + if (EFI_ERROR (Status)) {
> + return Status;
> + }
> +
> + if (CompareGuid (Dev->Type, &gDwEmacNetNonDiscoverableDeviceGuid)
> &&
> + Dev->DmaType == NonDiscoverableDeviceDmaTypeNonCoherent) {
> + Status = EFI_SUCCESS;
> + } else {
> + Status = EFI_UNSUPPORTED;
> + }
> +
> + // Clean up.
> + gBS->CloseProtocol (Controller,
> + &gEdkiiNonDiscoverableDeviceProtocolGuid,
> + This->DriverBindingHandle,
> + Controller);
> +
> + return Status;
> +}
> +
> +STATIC
> +EFI_STATUS
> +EFIAPI
> +DriverStart (
> + IN EFI_DRIVER_BINDING_PROTOCOL *This,
> + IN EFI_HANDLE Controller,
> + IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
> + )
> +{
> + EFI_STATUS Status;
> + EFI_SIMPLE_NETWORK_DRIVER *Snp;
> + EFI_SIMPLE_NETWORK_MODE *SnpMode;
> + EFI_SIMPLE_NETWORK_DEVICE_PATH *DevicePath;
> + UINT64 DefaultMacAddress;
> + EFI_MAC_ADDRESS *SwapMacAddressPtr;
> + UINTN BufferSize;
> + UINTN BufferSizeBuf;
> +
> + // Allocate Resources
> + Snp = AllocatePages (EFI_SIZE_TO_PAGES (sizeof
> (EFI_SIMPLE_NETWORK_DRIVER)));
> + if (Snp == NULL) {
> + return EFI_OUT_OF_RESOURCES;
> + }
> +
> + BufferSize = EFI_PAGES_TO_SIZE ((sizeof
> (DESIGNWARE_HW_DESCRIPTOR))*10);
> + BufferSizeBuf = EFI_PAGES_TO_SIZE ((sizeof (CHAR8))*10*2048);
> +
> + // DMA Allocte Buffer and Map for TxdescRing
> + Status = DmaAllocateBuffer (EfiBootServicesData, EFI_SIZE_TO_PAGES
> ((sizeof (DESIGNWARE_HW_DESCRIPTOR))*10), (VOID*)&Snp-
> >MacDriver.TxdescRing);
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_ERROR, "CreateDwEmacSnpDxe: DmaAllocateBuffer
> TxdescRing: %r\n", Status));
> + return Status;
> + }
> + Status = DmaMap (MapOperationBusMasterCommonBuffer, Snp-
> >MacDriver.TxdescRing[0], &BufferSize, &Snp-
> >MacDriver.TxdescRingMap[0], &Snp->MappingTxdesc);
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_ERROR, "CreateDwEmacSnpDxe: DmaMap TxdescRing:
> %r\n", Status));
> + return Status;
> + }
> +
> + // DMA Allocte Buffer and Map for RxdescRing
> + Status = DmaAllocateBuffer (EfiBootServicesData, EFI_SIZE_TO_PAGES
> ((sizeof (DESIGNWARE_HW_DESCRIPTOR))*10), (VOID*)&Snp-
> >MacDriver.RxdescRing);
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_ERROR, "CreateDwEmacSnpDxe: DmaAllocateBuffer
> RxdescRing: %r\n", Status));
> + return Status;
> + }
> + Status = DmaMap (MapOperationBusMasterCommonBuffer, Snp-
> >MacDriver.RxdescRing[0], &BufferSize, &Snp-
> >MacDriver.RxdescRingMap[0], &Snp->MappingRxdesc);
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_ERROR, "CreateDwEmacSnpDxe: DmaMap RxdescRing:
> %r\n", Status));
> + return Status;
> + }
> +
> + // DMA Allocte Buffer and Map for TxBuffer
> + Status = DmaAllocateBuffer (EfiBootServicesData, EFI_SIZE_TO_PAGES
> ((sizeof (CHAR8))*10*2048), (VOID*)&Snp->MacDriver.TxBuffer);
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_ERROR, "CreateDwEmacSnpDxe: DmaAllocateBuffer
> TxBuffer: %r\n", Status));
> + return Status;
> + }
> + Status = DmaMap (MapOperationBusMasterCommonBuffer, Snp-
> >MacDriver.TxBuffer[0], &BufferSizeBuf, &Snp-
> >MacDriver.TxBufferMap[0], &Snp->MappingTxbuf);
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_ERROR, "CreateDwEmacSnpDxe: DmaMap TxBuffer:
> %r\n", Status));
> + return Status;
> + }
> +
> + // DMA Allocte Buffer and Map for RxBuffer
> + Status = DmaAllocateBuffer (EfiBootServicesData, EFI_SIZE_TO_PAGES
> ((sizeof (CHAR8))*10*2048), (VOID*)&Snp->MacDriver.RxBuffer);
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_ERROR, "CreateDwEmacSnpDxe: DmaAllocateBuffer
> RxBuffer: %r\n", Status));
> + return Status;
> + }
> + Status = DmaMap (MapOperationBusMasterWrite, Snp-
> >MacDriver.RxBuffer[0], &BufferSizeBuf, &Snp-
> >MacDriver.RxBufferMap[0], &Snp->MappingRxbuf);
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_ERROR, "CreateDwEmacSnpDxe: DmaMap RxBuffer:
> %r\n", Status));
> + return Status;
> + }
> +
> +
> + DevicePath = (EFI_SIMPLE_NETWORK_DEVICE_PATH*)AllocateCopyPool
> (sizeof (EFI_SIMPLE_NETWORK_DEVICE_PATH), &PathTemplate);
> + if (DevicePath == NULL) {
> + return EFI_OUT_OF_RESOURCES;
> + }
> +
> + Status = gBS->OpenProtocol (Controller,
> + &gEdkiiNonDiscoverableDeviceProtocolGu
> id,
> + (VOID **)&Snp->Dev,
> + This->DriverBindingHandle,
> + Controller,
> + EFI_OPEN_PROTOCOL_BY_DRIVER);
> +
> + // Initialized signature (used by INSTANCE_FROM_SNP_THIS macro)
> + Snp->Signature = SNP_DRIVER_SIGNATURE;
> +
> + EfiInitializeLock (&Snp->Lock, TPL_CALLBACK);
> +
> + // Initialize pointers
> + SnpMode = &(Snp->SnpMode);
> + Snp->Snp.Mode = SnpMode;
> +
> + // Assign fields and func pointers
> + Snp->Snp.Revision = EFI_SIMPLE_NETWORK_PROTOCOL_REVISION;
> + Snp->Snp.WaitForPacket = NULL;
> + Snp->Snp.Initialize = SnpInitialize;
> + Snp->Snp.Start = SnpStart;
> + Snp->Snp.Stop = SnpStop;
> + Snp->Snp.Reset = SnpReset;
> + Snp->Snp.Shutdown = SnpShutdown;
> + Snp->Snp.ReceiveFilters = SnpReceiveFilters;
> + Snp->Snp.StationAddress = SnpStationAddress;
> + Snp->Snp.Statistics = SnpStatistics;
> + Snp->Snp.MCastIpToMac = SnpMcastIptoMac;
> + Snp->Snp.NvData = SnpNvData;
> + Snp->Snp.GetStatus = SnpGetStatus;
> + Snp->Snp.Transmit = SnpTransmit;
> + Snp->Snp.Receive = SnpReceive;
> +
> + Snp->RecycledTxBuf = AllocatePool (sizeof (UINT64) *
> SNP_TX_BUFFER_INCREASEMENT);
> + if (Snp->RecycledTxBuf == NULL) {
> + Status = EFI_OUT_OF_RESOURCES;
> + }
> +
> + Snp->MaxRecycledTxBuf = SNP_TX_BUFFER_INCREASEMENT;
> + Snp->RecycledTxBufCount = 0;
> +
> + // Start completing simple network mode structure
> + SnpMode->State = EfiSimpleNetworkStopped;
> + SnpMode->HwAddressSize = NET_ETHER_ADDR_LEN; // HW address is 6
> bytes
> + SnpMode->MediaHeaderSize = sizeof(ETHER_HEAD); // Not sure of this
> + SnpMode->MaxPacketSize = EFI_PAGE_SIZE; // Preamble + SOF + Ether
> Frame (with VLAN tag +4bytes)
> + SnpMode->NvRamSize = 0; // No NVRAM with this device
> + SnpMode->NvRamAccessSize = 0; // No NVRAM with this device
> +
> + // Update network mode information
> + SnpMode->ReceiveFilterMask =
> EFI_SIMPLE_NETWORK_RECEIVE_UNICAST |
> + EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST
> |
> + EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST
> |
> + EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOU
> S |
> + EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOU
> S_MULTICAST;
> +
> + // We do not intend to receive anything for the time being.
> + SnpMode->ReceiveFilterSetting = 0;
> +
> + // EMAC has 64bit hash table, can filter 64 MCast MAC Addresses
> + SnpMode->MaxMCastFilterCount = MAX_MCAST_FILTER_CNT;
> + SnpMode->MCastFilterCount = 0;
> + ZeroMem (&SnpMode->MCastFilter, MAX_MCAST_FILTER_CNT *
> sizeof(EFI_MAC_ADDRESS));
> +
> + // Set the interface type (1: Ethernet or 6: IEEE 802 Networks)
> + SnpMode->IfType = NET_IFTYPE_ETHERNET;
> +
> + // Mac address is changeable as it is loaded from erasable memory
> + SnpMode->MacAddressChangeable = TRUE;
> +
> + // Can only transmit one packet at a time
> + SnpMode->MultipleTxSupported = FALSE;
> +
> + // MediaPresent checks for cable connection and partner link
> + SnpMode->MediaPresentSupported = TRUE;
> + SnpMode->MediaPresent = FALSE;
> +
> + // Set broadcast address
> + SetMem (&SnpMode->BroadcastAddress, sizeof (EFI_MAC_ADDRESS),
> 0xFF);
> +
> + //Set current address
> + DefaultMacAddress = Snp->Dev->Resources[1].AddrRangeMin;
> + // Swap PCD human readable form to correct endianess
> + SwapMacAddressPtr = (EFI_MAC_ADDRESS *) &DefaultMacAddress;
> + SnpMode->CurrentAddress.Addr[0] = SwapMacAddressPtr->Addr[5];
> + SnpMode->CurrentAddress.Addr[1] = SwapMacAddressPtr->Addr[4];
> + SnpMode->CurrentAddress.Addr[2] = SwapMacAddressPtr->Addr[3];
> + SnpMode->CurrentAddress.Addr[3] = SwapMacAddressPtr->Addr[2];
> + SnpMode->CurrentAddress.Addr[4] = SwapMacAddressPtr->Addr[1];
> + SnpMode->CurrentAddress.Addr[5] = SwapMacAddressPtr->Addr[0];
> +
> + // Assign fields for device path
> + CopyMem (&DevicePath->MacAddrDP.MacAddress, &Snp->Snp.Mode-
> >CurrentAddress, NET_ETHER_ADDR_LEN);
> + DevicePath->MacAddrDP.IfType = Snp->Snp.Mode->IfType;
> +
> + Status = gBS->InstallMultipleProtocolInterfaces (
> + &Controller,
> + &gEfiSimpleNetworkProtocolGuid, &(Snp->Snp),
> + &gEfiDevicePathProtocolGuid,
> DevicePath,
> + NULL
> + );
> +
> + if (EFI_ERROR(Status)) {
> + gBS->CloseProtocol (Controller,
> + &gEdkiiNonDiscoverableDeviceProtocolGuid,
> + This->DriverBindingHandle,
> + Controller);
> +
> + FreePages (Snp, EFI_SIZE_TO_PAGES (sizeof
> (EFI_SIMPLE_NETWORK_DRIVER)));
> + } else {
> + Snp->ControllerHandle = Controller;
> + }
> +
> + return Status;
> +}
> +
> +STATIC
> +EFI_STATUS
> +EFIAPI
> +DriverStop (
> + IN EFI_DRIVER_BINDING_PROTOCOL *This,
> + IN EFI_HANDLE Controller,
> + IN UINTN NumberOfChildren,
> + IN EFI_HANDLE *ChildHandleBuffer
> + )
> +{
> + EFI_STATUS Status;
> + EFI_SIMPLE_NETWORK_PROTOCOL *SnpProtocol;
> + EFI_SIMPLE_NETWORK_DRIVER *Snp;
> +
> + Status = gBS->HandleProtocol (
> + Controller,
> + &gEfiSimpleNetworkProtocolGuid,
> + (VOID**)&SnpProtocol
> + );
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_ERROR, "DriverStop: HandleProtocol: %r\n",
> Status));
> + return Status;
> + }
> +
> + Snp = INSTANCE_FROM_SNP_THIS(SnpProtocol);
> +
> + Status = gBS->UninstallMultipleProtocolInterfaces (
> + Controller,
> + &gEfiSimpleNetworkProtocolGuid,
> + &Snp->Snp,
> + NULL);
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_ERROR, "DriverStop:
> UninstallMultipleProtocolInterfaces: %r\n",
> + Status));
> + return Status;
> + }
> +
> + DmaUnmap(Snp->MappingTxdesc);
> + DmaUnmap(Snp->MappingRxdesc);
> + DmaUnmap(Snp->MappingTxbuf);
> + DmaUnmap(Snp->MappingRxbuf);
> +
> + FreePool (Snp->RecycledTxBuf);
> + FreePages (Snp, EFI_SIZE_TO_PAGES (sizeof
> (EFI_SIMPLE_NETWORK_DRIVER)));
> +
> + return Status;
> +}
> +
> +
> +/**
> + UEFI Driver Entry Point API
> + @param ImageHandle EFI_HANDLE.
> + @param SystemTable EFI_SYSTEM_TABLE.
> + @return EFI_SUCCESS Success.
> + EFI_DEVICE_ERROR Fail.
> +**/
> +
> +EFI_STATUS
> +EFIAPI
> +DwEmacSnpDxeEntry (
> + IN EFI_HANDLE ImageHandle,
> + IN EFI_SYSTEM_TABLE *SystemTable
> + )
> +{
> + EFI_STATUS Status;
> + EFI_HANDLE Handle;
> +
> + Handle = NULL;
> + Status = RegisterDevice (&gDwEmacNetNonDiscoverableDeviceGuid,
> mDwEmacNetDesc,
> + &Handle);
> + ASSERT_EFI_ERROR (Status);
> +
> + Status = EfiLibInstallDriverBindingComponentName2 (
> + ImageHandle,
> + SystemTable,
> + &mDriverBinding,
> + ImageHandle,
> + &gSnpComponentName,
> + &gSnpComponentName2
> + );
> +
> + return Status;
> +
> +}
> \ No newline at end of file
> diff --git a/Silicon/DesignWare/Drivers/DwEmacSnpDxe/DwEmacSnpDxe.c
> b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/DwEmacSnpDxe.c
> new file mode 100755
> index 000000000000..cee1584c599e
> --- /dev/null
> +++ b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/DwEmacSnpDxe.c
> @@ -0,0 +1,1273 @@
> +/** @file
> + DW EMAC SNP DXE driver
> +
> + Copyright (c) 2011 - 2019, Intel Corporaton. 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.
> +
> + The original software modules are licensed as follows:
> +
> + Copyright (c) 2012 - 2014, ARM Limited. All rights reserved.
> + Copyright (c) 2004 - 2010, 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 3 Clause LICENSE ON AN
> "AS IS" BASIS,
> + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS
> OR IMPLIED.
> +**/
> +
> +#include "DwEmacSnpDxe.h"
> +#include "EmacDxeUtil.h"
> +#include "PhyDxeUtil.h"
> +
> +/**
> + Change the state of a network interface from "stopped" to
> "started."
> +
> + This function starts a network interface. If the network interface
> successfully
> + starts, then EFI_SUCCESS will be returned.
> +
> + @param Snp A pointer to the
> EFI_SIMPLE_NETWORK_PROTOCOL instance.
> +
> + @retval EFI_SUCCESS The network interface was started.
> + @retval EFI_ALREADY_STARTED The network interface is already in
> the started state.
> + @retval EFI_INVALID_PARAMETER This parameter was NULL or did not
> point to a valid
> + EFI_SIMPLE_NETWORK_PROTOCOL
> structure.
> + @retval EFI_DEVICE_ERROR The command could not be sent to
> the network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by
> the network interface.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpStart (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *This
> + )
> +{
> + EFI_SIMPLE_NETWORK_DRIVER *Snp;
> + DEBUG ((EFI_D_INFO,"SNP:DXE: %a ()\r\n", __FUNCTION__));
> +
> + // Check Snp instance
> + if (This == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + Snp = INSTANCE_FROM_SNP_THIS(This);
> + // Check state
> + if ((Snp->SnpMode.State == EfiSimpleNetworkStarted) ||
> + (Snp->SnpMode.State == EfiSimpleNetworkInitialized) ) {
> + return EFI_ALREADY_STARTED;
> + }
> +
> + // Change state
> + Snp->SnpMode.State = EfiSimpleNetworkStarted;
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Changes the state of a network interface from "started" to
> "stopped."
> +
> + This function stops a network interface. This call is only valid
> if the network
> + interface is in the started state. If the network interface was
> successfully
> + stopped, then EFI_SUCCESS will be returned.
> +
> + @param Snp A pointer to the
> EFI_SIMPLE_NETWORK_PROTOCOL
> + instance.
> +
> +
> + @retval EFI_SUCCESS The network interface was stopped.
> + @retval EFI_NOT_STARTED The network interface has not been
> started.
> + @retval EFI_INVALID_PARAMETER This parameter was NULL or did not
> point to a
> + valid EFI_SIMPLE_NETWORK_PROTOCOL
> structure.
> + @retval EFI_DEVICE_ERROR The command could not be sent to
> the network
> + interface.
> + @retval EFI_UNSUPPORTED This function is not supported by
> the network
> + interface.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpStop (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL* This
> + )
> +{
> + EFI_SIMPLE_NETWORK_DRIVER *Snp;
> + UINT32 MacBase;
> + DEBUG ((EFI_D_INFO, "SNP:DXE: %a ()\r\n", __FUNCTION__));
> +
> + // Check Snp Instance
> + if (This == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + Snp = INSTANCE_FROM_SNP_THIS(This);
> + // Check state of the driver
> + if (Snp->SnpMode.State == EfiSimpleNetworkStopped) {
> + return EFI_NOT_STARTED;
> + }
> +
> + //Get MAC base address
> + MacBase = (UINT32)Snp->Dev->Resources[0].AddrRangeMin;
> +
> + // Stop the Tx and Rx
> + EmacStopTxRx (MacBase);
> + // Change the state
> + switch (Snp->SnpMode.State) {
> + case EfiSimpleNetworkStarted:
> + case EfiSimpleNetworkInitialized:
> + Snp->SnpMode.State = EfiSimpleNetworkStopped;
> + break;
> + default:
> + return EFI_DEVICE_ERROR;
> + }
> +
> + // Put the device into a power saving mode ?
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Resets a network adapter and allocates the transmit and receive
> buffers
> + required by the network interface; optionally, also requests
> allocation of
> + additional transmit and receive buffers.
> +
> + This function allocates the transmit and receive buffers required
> by the network
> + interface. If this allocation fails, then EFI_OUT_OF_RESOURCES is
> returned.
> + If the allocation succeeds and the network interface is
> successfully initialized,
> + then EFI_SUCCESS will be returned.
> +
> + @param Snp A pointer to the
> EFI_SIMPLE_NETWORK_PROTOCOL instance.
> +
> + @param ExtraRxBufferSize The size, in bytes, of the extra receive
> buffer space
> + that the driver should allocate for the
> network interface.
> + Some network interfaces will not be able
> to use the
> + extra buffer, and the caller will not
> know if it is
> + actually being used.
> + @param ExtraTxBufferSize The size, in bytes, of the extra
> transmit buffer space
> + that the driver should allocate for the
> network interface.
> + Some network interfaces will not be able
> to use the
> + extra buffer, and the caller will not
> know if it is
> + actually being used.
> +
> + @retval EFI_SUCCESS The network interface was
> initialized.
> + @retval EFI_NOT_STARTED The network interface has not been
> started.
> + @retval EFI_OUT_OF_RESOURCES There was not enough memory for the
> transmit and
> + receive buffers.
> + @retval EFI_INVALID_PARAMETER This parameter was NULL or did not
> point to a valid
> + EFI_SIMPLE_NETWORK_PROTOCOL
> structure.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED The increased buffer size feature is
> not supported.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpInitialize (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
> + IN UINTN ExtraRxBufferSize OPTIONAL,
> + IN UINTN ExtraTxBufferSize OPTIONAL
> + )
> +{
> + EFI_STATUS Status;
> + EFI_SIMPLE_NETWORK_DRIVER *Snp;
> + UINT32 MacBase;
> +
> + DEBUG ((EFI_D_INFO, "SNP:DXE: %a ()\r\n", __FUNCTION__));
> +
> + // Check Snp Instance
> + if (This == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + Snp = INSTANCE_FROM_SNP_THIS (This);
> + // First check that driver has not already been initialized
> + if (Snp->SnpMode.State == EfiSimpleNetworkInitialized) {
> + return EFI_SUCCESS;
> + } else
> + if (Snp->SnpMode.State == EfiSimpleNetworkStopped) {
> + return EFI_NOT_STARTED;
> + }
> +
> + //Get MAC base address
> + MacBase = (UINT32)Snp->Dev->Resources[0].AddrRangeMin;
> +
> + // Init PHY
> + Status = PhyDxeInitialization (&Snp->PhyDriver, MacBase);
> + if (EFI_ERROR (Status)) {
> + return EFI_DEVICE_ERROR;
> + }
> +
> + // Init EMAC
> + Status = EmacDxeInitialization (&Snp->MacDriver, MacBase);
> + if (EFI_ERROR (Status)) {
> + return EFI_DEVICE_ERROR;
> + }
> +
> + // Set MAC Address
> + EmacSetMacAddress (&Snp->SnpMode.CurrentAddress, MacBase);
> + EmacReadMacAddress(&Snp->SnpMode.CurrentAddress, MacBase);
> +
> + // Init Link
> + Print (L"SNP:DXE: Auto-Negotiating Ethernet PHY Link ...\r\n");
> + Status = PhyLinkAdjustEmacConfig (&Snp->PhyDriver, MacBase);
> + if (EFI_ERROR(Status)) {
> + Print (L"SNP:DXE: Link is Down - Network Cable is not plugged
> in?\r\n");
> + return EFI_DEVICE_ERROR;
> + }
> +
> + EmacStartTransmission (MacBase);
> +
> + // Declare the driver as initialized
> + Snp->SnpMode.State = EfiSimpleNetworkInitialized;
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Resets a network adapter and reinitializes it with the parameters
> that were
> + provided in the previous call to Initialize().
> +
> + This function resets a network adapter and reinitializes it with
> the parameters
> + that were provided in the previous call to Initialize(). The
> transmit and
> + receive queues are emptied and all pending interrupts are cleared.
> + Receive filters, the station address, the statistics, and the
> multicast-IP-to-HW
> + MAC addresses are not reset by this call. If the network interface
> was
> + successfully reset, then EFI_SUCCESS will be returned. If the
> driver has not
> + been initialized, EFI_DEVICE_ERROR will be returned.
> +
> + @param Snp A pointer to the
> EFI_SIMPLE_NETWORK_PROTOCOL instance.
> + @param ExtendedVerification Indicates that the driver may perform
> a more
> + exhaustive verification operation of
> the device
> + during reset.
> +
> + @retval EFI_SUCCESS The network interface was reset.
> + @retval EFI_NOT_STARTED The network interface has not been
> started.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by
> the network interface.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpReset (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
> + IN BOOLEAN ExtendedVerification
> + )
> +{
> + EFI_STATUS Status;
> + EFI_SIMPLE_NETWORK_DRIVER *Snp;
> + UINT32 MacBase;
> +
> + Snp = INSTANCE_FROM_SNP_THIS (This);
> +
> + DEBUG ((EFI_D_INFO, "SNP:DXE: %a ()\r\n", __FUNCTION__));
> +
> + // Check Snp Instance
> + if (This == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + // First check that driver has not already been initialized
> + if (Snp->SnpMode.State == EfiSimpleNetworkStarted) {
> + return EFI_DEVICE_ERROR;
> + } else if (Snp->SnpMode.State == EfiSimpleNetworkStopped) {
> + return EFI_NOT_STARTED;
> + }
> +
> + // Get MAC base address
> + MacBase = (UINT32)Snp->Dev->Resources[0].AddrRangeMin;
> +
> + // Initiate a PHY reset
> + Status = PhySoftReset (&Snp->PhyDriver, MacBase);
> + if (EFI_ERROR (Status)) {
> + Snp->SnpMode.State = EfiSimpleNetworkStopped;
> + return EFI_NOT_STARTED;
> + }
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Resets a network adapter and leaves it in a state that is safe for
> another
> + driver to initialize.
> +
> + This function releases the memory buffers assigned in the
> Initialize() call.
> + Pending transmits and receives are lost, and interrupts are
> cleared and disabled.
> + After this call, only the Initialize() and Stop() calls may be
> used. If the
> + network interface was successfully shutdown, then EFI_SUCCESS will
> be returned.
> + If the driver has not been initialized, EFI_DEVICE_ERROR will be
> returned.
> +
> + @param This A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL
> instance.
> +
> + @retval EFI_SUCCESS The network interface was shutdown.
> + @retval EFI_NOT_STARTED The network interface has not been
> started.
> + @retval EFI_INVALID_PARAMETER This parameter was NULL or did not
> point to a valid
> + EFI_SIMPLE_NETWORK_PROTOCOL
> structure.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpShutdown (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL* This
> + )
> +{
> + EFI_SIMPLE_NETWORK_DRIVER *Snp;
> + UINT32 MacBase;
> + DEBUG ((EFI_D_INFO, "SNP:DXE: %a ()\r\n", __FUNCTION__));
> +
> + // Check Snp Instance
> + if (This == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + Snp = INSTANCE_FROM_SNP_THIS (This);
> + // First check that driver has not already been initialized
> + if (Snp->SnpMode.State == EfiSimpleNetworkStarted) {
> + return EFI_DEVICE_ERROR;
> + } else if (Snp->SnpMode.State == EfiSimpleNetworkStopped) {
> + return EFI_NOT_STARTED;
> + }
> +
> + //Get MAC base address
> + MacBase = (UINT32)Snp->Dev->Resources[0].AddrRangeMin;
> +
> + EmacStopTxRx (MacBase);
> +
> + Snp->SnpMode.State = EfiSimpleNetworkStopped;
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Manages the multicast receive filters of a network interface.
> +
> + This function is used enable and disable the hardware and software
> receive
> + filters for the underlying network device.
> + The receive filter change is broken down into three steps:
> + * The filter mask bits that are set (ON) in the Enable parameter
> are added to
> + the current receive filter settings.
> + * The filter mask bits that are set (ON) in the Disable parameter
> are subtracted
> + from the updated receive filter settings.
> + * If the resulting receive filter setting is not supported by the
> hardware a
> + more liberal setting is selected.
> + If the same bits are set in the Enable and Disable parameters,
> then the bits
> + in the Disable parameter takes precedence.
> + If the ResetMCastFilter parameter is TRUE, then the multicast
> address list
> + filter is disabled (irregardless of what other multicast bits are
> set in the
> + Enable and Disable parameters). The SNP->Mode->MCastFilterCount
> field is set
> + to zero. The Snp->Mode->MCastFilter contents are undefined.
> + After enabling or disabling receive filter settings, software
> should verify
> + the new settings by checking the Snp->Mode->ReceiveFilterSettings,
> + Snp->Mode->MCastFilterCount and Snp->Mode->MCastFilter fields.
> + Note: Some network drivers and/or devices will automatically
> promote receive
> + filter settings if the requested setting can not be honored. For
> example, if
> + a request for four multicast addresses is made and the
> underlying hardware
> + only supports two multicast addresses the driver might set the
> promiscuous
> + or promiscuous multicast receive filters instead. The receiving
> software is
> + responsible for discarding any extra packets that get through
> the hardware
> + receive filters.
> + Note: Note: To disable all receive filter hardware, the network
> driver must
> + be Shutdown() and Stopped(). Calling ReceiveFilters() with
> Disable set to
> + Snp->Mode->ReceiveFilterSettings will make it so no more
> packets are
> + returned by the Receive() function, but the receive hardware
> may still be
> + moving packets into system memory before inspecting and
> discarding them.
> + Unexpected system errors, reboots and hangs can occur if an OS
> is loaded
> + and the network devices are not Shutdown() and Stopped().
> + If ResetMCastFilter is TRUE, then the multicast receive filter
> list on the
> + network interface will be reset to the default multicast receive
> filter list.
> + If ResetMCastFilter is FALSE, and this network interface allows
> the multicast
> + receive filter list to be modified, then the MCastFilterCnt and
> MCastFilter
> + are used to update the current multicast receive filter list. The
> modified
> + receive filter list settings can be found in the MCastFilter field
> of
> + EFI_SIMPLE_NETWORK_MODE. If the network interface does not allow
> the multicast
> + receive filter list to be modified, then EFI_INVALID_PARAMETER
> will be returned.
> + If the driver has not been initialized, EFI_DEVICE_ERROR will be
> returned.
> + If the receive filter mask and multicast receive filter list have
> been
> + successfully updated on the network interface, EFI_SUCCESS will be
> returned.
> +
> + @param Snp A pointer to the
> EFI_SIMPLE_NETWORK_PROTOCOL instance.
> + @param Enable A bit mask of receive filters to enable on
> the network
> + interface.
> + @param Disable A bit mask of receive filters to disable
> on the network
> + interface. For backward compatibility with
> EFI 1.1
> + platforms, the
> EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST bit
> + must be set when the ResetMCastFilter
> parameter is TRUE.
> + @param ResetMCastFilter Set to TRUE to reset the contents of the
> multicast
> + receive filters on the network interface
> to their
> + default values.
> + @param MCastFilterCnt Number of multicast HW MAC addresses in
> the new MCastFilter
> + list. This value must be less than or
> equal to the
> + MCastFilterCnt field of
> EFI_SIMPLE_NETWORK_MODE.
> + This field is optional if ResetMCastFilter
> is TRUE.
> + @param MCastFilter A pointer to a list of new multicast
> receive filter HW
> + MAC addresses. This list will replace any
> existing
> + multicast HW MAC address list. This field
> is optional
> + if ResetMCastFilter is TRUE.
> +
> + @retval EFI_SUCCESS The multicast receive filter list
> was updated.
> + @retval EFI_NOT_STARTED The network interface has not been
> started.
> + @retval EFI_INVALID_PARAMETER One or more of the following
> conditions is TRUE:
> + * This is NULL
> + * There are bits set in Enable that
> are not set
> + in Snp->Mode->ReceiveFilterMask
> + * There are bits set in Disable
> that are not set
> + in Snp->Mode->ReceiveFilterMask
> + * Multicast is being enabled (the
> + EFI_SIMPLE_NETWORK_RECEIVE_MULTIC
> AST bit is
> + set in Enable, it is not set in
> Disable, and
> + ResetMCastFilter is FALSE) and
> MCastFilterCount
> + is zero
> + * Multicast is being enabled and
> MCastFilterCount
> + is greater than Snp->Mode-
> >MaxMCastFilterCount
> + * Multicast is being enabled and
> MCastFilter is NULL
> + * Multicast is being enabled and
> one or more of
> + the addresses in the MCastFilter
> list are not
> + valid multicast MAC addresses
> + @retval EFI_DEVICE_ERROR One or more of the following
> conditions is TRUE:
> + * The network interface has been
> started but has
> + not been initialized
> + * An unexpected error was returned
> by the
> + underlying network driver or
> device
> + @retval EFI_UNSUPPORTED This function is not supported by
> the network
> + interface.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpReceiveFilters (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
> + IN UINT32 Enable,
> + IN UINT32 Disable,
> + IN BOOLEAN ResetMCastFilter,
> + IN UINTN MCastFilterCnt OPTIONAL,
> + IN EFI_MAC_ADDRESS *MCastFilter OPTIONAL
> + )
> +{
> + UINT32 ReceiveFilterSetting;
> + EFI_SIMPLE_NETWORK_DRIVER *Snp;
> + UINT32 MacBase;
> +
> + Snp = INSTANCE_FROM_SNP_THIS (This);
> +
> + // Check Snp Instance
> + if (Snp == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + // Check that driver was started and initialised
> + if (Snp->SnpMode.State == EfiSimpleNetworkStarted) {
> + return EFI_DEVICE_ERROR;
> + } else if (Snp->SnpMode.State == EfiSimpleNetworkStopped) {
> + return EFI_NOT_STARTED;
> + }
> +
> + if ((Enable & (~Snp->SnpMode.ReceiveFilterMask)) ||
> + (Disable & (~Snp->SnpMode.ReceiveFilterMask)) ) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + //Get MAC base address
> + MacBase = (UINT32)Snp->Dev->Resources[0].AddrRangeMin;
> +
> + ReceiveFilterSetting = (Snp->SnpMode.ReceiveFilterSetting |
> Enable) & (~Disable);
> +
> + EmacRxFilters (ReceiveFilterSetting, ResetMCastFilter,
> MCastFilterCnt, MCastFilter, MacBase);
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Modifies or resets the current station address, if supported.
> +
> + This function modifies or resets the current station address of a
> network
> + interface, if supported. If Reset is TRUE, then the current
> station address is
> + set to the network interface's permanent address. If Reset is
> FALSE, and the
> + network interface allows its station address to be modified, then
> the current
> + station address is changed to the address specified by New. If the
> network
> + interface does not allow its station address to be modified, then
> + EFI_INVALID_PARAMETER will be returned. If the station address is
> successfully
> + updated on the network interface, EFI_SUCCESS will be returned. If
> the driver
> + has not been initialized, EFI_DEVICE_ERROR will be returned.
> +
> + @param Snp A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL
> instance.
> + @param Reset Flag used to reset the station address to the
> network interface's
> + permanent address.
> + @param NewMac New station address to be used for the network
> interface.
> +
> +
> + @retval EFI_SUCCESS The network interface's station
> address was updated.
> + @retval EFI_NOT_STARTED The Simple Network Protocol
> interface has not been
> + started by calling Start().
> + @retval EFI_INVALID_PARAMETER The New station address was not
> accepted by the NIC.
> + @retval EFI_INVALID_PARAMETER Reset is FALSE and New is NULL.
> + @retval EFI_DEVICE_ERROR The Simple Network Protocol
> interface has not
> + been initialized by calling
> Initialize().
> + @retval EFI_DEVICE_ERROR An error occurred attempting to set
> the new
> + station address.
> + @retval EFI_UNSUPPORTED The NIC does not support changing
> the network
> + interface's station address.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpStationAddress (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
> + IN BOOLEAN Reset,
> + IN EFI_MAC_ADDRESS *NewMac
> +)
> +{
> + return EFI_UNSUPPORTED;
> +}
> +
> +
> +
> +/**
> + Resets or collects the statistics on a network interface.
> +
> + This function resets or collects the statistics on a network
> interface. If the
> + size of the statistics table specified by StatisticsSize is not
> big enough for
> + all the statistics that are collected by the network interface,
> then a partial
> + buffer of statistics is returned in StatisticsTable,
> StatisticsSize is set to
> + the size required to collect all the available statistics, and
> + EFI_BUFFER_TOO_SMALL is returned.
> + If StatisticsSize is big enough for all the statistics, then
> StatisticsTable
> + will be filled, StatisticsSize will be set to the size of the
> returned
> + StatisticsTable structure, and EFI_SUCCESS is returned.
> + If the driver has not been initialized, EFI_DEVICE_ERROR will be
> returned.
> + If Reset is FALSE, and both StatisticsSize and StatisticsTable are
> NULL, then
> + no operations will be performed, and EFI_SUCCESS will be returned.
> + If Reset is TRUE, then all of the supported statistics counters on
> this network
> + interface will be reset to zero.
> +
> + @param Snp A pointer to the
> EFI_SIMPLE_NETWORK_PROTOCOL instance.
> + @param Reset Set to TRUE to reset the statistics for the
> network interface.
> + @param StatSize On input the size, in bytes, of
> StatisticsTable. On output
> + the size, in bytes, of the resulting table
> of statistics.
> + @param Statistics A pointer to the EFI_NETWORK_STATISTICS
> structure that
> + contains the statistics. Type
> EFI_NETWORK_STATISTICS is
> + defined in "Related Definitions" below.
> +
> + @retval EFI_SUCCESS The requested operation succeeded.
> + @retval EFI_NOT_STARTED The Simple Network Protocol
> interface has not been
> + started by calling Start().
> + @retval EFI_BUFFER_TOO_SMALL StatisticsSize is not NULL and
> StatisticsTable is
> + NULL. The current buffer size that
> is needed to
> + hold all the statistics is returned
> in StatisticsSize.
> + @retval EFI_BUFFER_TOO_SMALL StatisticsSize is not NULL and
> StatisticsTable is
> + not NULL. The current buffer size
> that is needed
> + to hold all the statistics is
> returned in
> + StatisticsSize. A partial set of
> statistics is
> + returned in StatisticsTable.
> + @retval EFI_INVALID_PARAMETER StatisticsSize is NULL and
> StatisticsTable is not
> + NULL.
> + @retval EFI_DEVICE_ERROR The Simple Network Protocol
> interface has not
> + been initialized by calling
> Initialize().
> + @retval EFI_DEVICE_ERROR An error was encountered collecting
> statistics
> + from the NIC.
> + @retval EFI_UNSUPPORTED The NIC does not support collecting
> statistics
> + from the network interface.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpStatistics (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
> + IN BOOLEAN Reset,
> + IN OUT UINTN *StatSize,
> + OUT EFI_NETWORK_STATISTICS *Statistics
> + )
> +{
> + EFI_SIMPLE_NETWORK_DRIVER *Snp;
> + UINT32 MacBase;
> +
> + Snp = INSTANCE_FROM_SNP_THIS (This);
> +
> + DEBUG ((EFI_D_INFO, "SNP:DXE: %a ()\r\n", __FUNCTION__));
> +
> + // Check Snp instance
> + if (This == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + // Check that driver was started and initialised
> + if (Snp->SnpMode.State == EfiSimpleNetworkStarted) {
> + return EFI_DEVICE_ERROR;
> + } else if (Snp->SnpMode.State == EfiSimpleNetworkStopped) {
> + return EFI_NOT_STARTED;
> + }
> +
> + // Check pointless condition
> + if ((!Reset) && (StatSize == NULL) && (Statistics == NULL)) {
> + return EFI_SUCCESS;
> + }
> +
> + // Check the parameters
> + if ((StatSize == NULL) && (Statistics != NULL)) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + // Do a reset if required
> + if (Reset) {
> + ZeroMem (&Snp->Stats, sizeof(EFI_NETWORK_STATISTICS));
> + }
> +
> + // Check buffer size
> + if (*StatSize < sizeof(EFI_NETWORK_STATISTICS)) {
> + *StatSize = sizeof(EFI_NETWORK_STATISTICS);
> + return EFI_BUFFER_TOO_SMALL;
> + }
> +
> + //Get MAC base address
> + MacBase = (UINT32)Snp->Dev->Resources[0].AddrRangeMin;
> +
> + // read statistic counters
> + EmacGetStatistic (&Snp->Stats, MacBase);
> +
> + // Fill in the statistics
> + CopyMem(&Statistics, &Snp->Stats, sizeof(EFI_NETWORK_STATISTICS));
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Converts a multicast IP address to a multicast HW MAC address.
> +
> + This function converts a multicast IP address to a multicast HW
> MAC address
> + for all packet transactions. If the mapping is accepted, then
> EFI_SUCCESS will
> + be returned.
> +
> + @param Snp A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL
> instance.
> + @param IsIpv6 Set to TRUE if the multicast IP address is IPv6
> [RFC 2460].
> + Set to FALSE if the multicast IP address is
> IPv4 [RFC 791].
> + @param Ip The multicast IP address that is to be
> converted to a multicast
> + HW MAC address.
> + @param McastMac The multicast HW MAC address that is to be
> generated from IP.
> +
> + @retval EFI_SUCCESS The multicast IP address was mapped
> to the
> + multicast HW MAC address.
> + @retval EFI_NOT_STARTED The Simple Network Protocol
> interface has not
> + been started by calling Start().
> + @retval EFI_INVALID_PARAMETER IP is NULL.
> + @retval EFI_INVALID_PARAMETER MAC is NULL.
> + @retval EFI_INVALID_PARAMETER IP does not point to a valid IPv4 or
> IPv6
> + multicast address.
> + @retval EFI_DEVICE_ERROR The Simple Network Protocol
> interface has not
> + been initialized by calling
> Initialize().
> + @retval EFI_UNSUPPORTED IPv6 is TRUE and the implementation
> does not
> + support IPv6 multicast to MAC
> address conversion.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpMcastIptoMac (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
> + IN BOOLEAN IsIpv6,
> + IN EFI_IP_ADDRESS *Ip,
> + OUT EFI_MAC_ADDRESS *McastMac
> + )
> +{
> +
> + DEBUG ((EFI_D_INFO, "SNP:DXE: %a ()\r\n", __FUNCTION__));
> +
> + // Check Snp instance
> + if (This == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + EFI_SIMPLE_NETWORK_DRIVER *Snp;
> +
> + Snp = INSTANCE_FROM_SNP_THIS (This);
> +
> + // Check that driver was started and initialised
> + if (Snp->SnpMode.State == EfiSimpleNetworkStarted) {
> + return EFI_DEVICE_ERROR;
> + } else if (Snp->SnpMode.State == EfiSimpleNetworkStopped) {
> + return EFI_NOT_STARTED;
> + }
> +
> + // Check parameters
> + if ((McastMac == NULL) || (Ip == NULL)) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + // Make sure MAC address is empty
> + ZeroMem (McastMac, sizeof(EFI_MAC_ADDRESS));
> +
> + // If we need ipv4 address
> + if (!IsIpv6) {
> + // Most significant 25 bits of a multicast HW address are set.
> + // 01-00-5E is the IPv4 Ethernet Multicast Address (see RFC
> 1112)
> + McastMac->Addr[0] = 0x01;
> + McastMac->Addr[1] = 0x00;
> + McastMac->Addr[2] = 0x5E;
> +
> + // Lower 23 bits from ipv4 address
> + McastMac->Addr[3] = (Ip->v4.Addr[1] & 0x7F); // Clear the most
> significant bit (25th bit of MAC must be 0)
> + McastMac->Addr[4] = Ip->v4.Addr[2];
> + McastMac->Addr[5] = Ip->v4.Addr[3];
> + } else {
> + // Most significant 16 bits of multicast v6 HW address are set
> + // 33-33 is the IPv6 Ethernet Multicast Address (see RFC 2464)
> + McastMac->Addr[0] = 0x33;
> + McastMac->Addr[1] = 0x33;
> +
> + // lower four octets are taken from ipv6 address
> + McastMac->Addr[2] = Ip->v6.Addr[8];
> + McastMac->Addr[3] = Ip->v6.Addr[9];
> + McastMac->Addr[4] = Ip->v6.Addr[10];
> + McastMac->Addr[5] = Ip->v6.Addr[11];
> + }
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Performs read and write operations on the NVRAM device attached to
> a network
> + interface.
> +
> + This function performs read and write operations on the NVRAM
> device attached
> + to a network interface. If ReadWrite is TRUE, a read operation is
> performed.
> + If ReadWrite is FALSE, a write operation is performed. Offset
> specifies the
> + byte offset at which to start either operation. Offset must be a
> multiple of
> + NvRamAccessSize , and it must have a value between zero and
> NvRamSize.
> + BufferSize specifies the length of the read or write operation.
> BufferSize must
> + also be a multiple of NvRamAccessSize, and Offset + BufferSize
> must not exceed
> + NvRamSize.
> + If any of the above conditions is not met, then
> EFI_INVALID_PARAMETER will be
> + returned.
> + If all the conditions are met and the operation is "read," the
> NVRAM device
> + attached to the network interface will be read into Buffer and
> EFI_SUCCESS
> + will be returned. If this is a write operation, the contents of
> Buffer will be
> + used to update the contents of the NVRAM device attached to the
> network
> + interface and EFI_SUCCESS will be returned.
> +
> + It does the basic checking on the input parameters and retrieves
> snp structure
> + and then calls the read_nvdata() call which does the actual
> reading
> +
> + @param Snp A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL
> instance.
> + @param ReadWrite TRUE for read operations, FALSE for write
> operations.
> + @param Offset Byte offset in the NVRAM device at which to
> start the read or
> + write operation. This must be a multiple of
> NvRamAccessSize
> + and less than NvRamSize. (See
> EFI_SIMPLE_NETWORK_MODE)
> + @param BufferSize The number of bytes to read or write from the
> NVRAM device.
> + This must also be a multiple of NvramAccessSize.
> + @param Buffer A pointer to the data buffer.
> +
> + @retval EFI_SUCCESS The NVRAM access was performed.
> + @retval EFI_NOT_STARTED The network interface has not been
> started.
> + @retval EFI_INVALID_PARAMETER One or more of the following
> conditions is TRUE:
> + * The This parameter is NULL
> + * The This parameter does not point
> to a valid
> + EFI_SIMPLE_NETWORK_PROTOCOL struc
> ture
> + * The Offset parameter is not a
> multiple of
> + EFI_SIMPLE_NETWORK_MODE.NvRamAcces
> sSize
> + * The Offset parameter is not less
> than
> + EFI_SIMPLE_NETWORK_MODE.NvRamSize
> + * The BufferSize parameter is not a
> multiple of
> + EFI_SIMPLE_NETWORK_MODE.NvRamAcces
> sSize
> + * The Buffer parameter is NULL
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network
> + interface.
> + @retval EFI_UNSUPPORTED This function is not supported by
> the network
> + interface.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpNvData (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
> + IN BOOLEAN ReadWrite,
> + IN UINTN Offset,
> + IN UINTN BufferSize,
> + IN OUT VOID *Buffer
> + )
> +{
> + return EFI_UNSUPPORTED;
> +}
> +
> +
> +/**
> + Reads the current interrupt status and recycled transmit buffer
> status from a
> + network interface.
> +
> + This function gets the current interrupt and recycled transmit
> buffer status
> + from the network interface. The interrupt status is returned as a
> bit mask in
> + InterruptStatus. If InterruptStatus is NULL, the interrupt status
> will not be
> + read. If TxBuf is not NULL, a recycled transmit buffer address
> will be retrieved.
> + If a recycled transmit buffer address is returned in TxBuf, then
> the buffer has
> + been successfully transmitted, and the status for that buffer is
> cleared. If
> + the status of the network interface is successfully collected,
> EFI_SUCCESS
> + will be returned. If the driver has not been initialized,
> EFI_DEVICE_ERROR will
> + be returned.
> +
> + @param Snp A pointer to the
> EFI_SIMPLE_NETWORK_PROTOCOL instance.
> + @param IrqStat A pointer to the bit mask of the currently
> active
> + interrupts (see "Related Definitions"). If
> this is NULL,
> + the interrupt status will not be read from
> the device.
> + If this is not NULL, the interrupt status
> will be read
> + from the device. When the interrupt status
> is read, it
> + will also be cleared. Clearing the transmit
> interrupt does
> + not empty the recycled transmit buffer
> array.
> + @param TxBuff Recycled transmit buffer address. The
> network interface
> + will not transmit if its internal recycled
> transmit
> + buffer array is full. Reading the transmit
> buffer does
> + not clear the transmit interrupt. If this
> is NULL, then
> + the transmit buffer status will not be
> read. If there
> + are no transmit buffers to recycle and
> TxBuf is not NULL,
> + TxBuf will be set to NULL.
> +
> + @retval EFI_SUCCESS The status of the network interface
> was retrieved.
> + @retval EFI_NOT_STARTED The network interface has not been
> started.
> + @retval EFI_INVALID_PARAMETER This parameter was NULL or did not
> point to a valid
> + EFI_SIMPLE_NETWORK_PROTOCOL
> structure.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network
> + interface.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpGetStatus (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
> + OUT UINT32 *IrqStat OPTIONAL,
> + OUT VOID **TxBuff OPTIONAL
> + )
> +{
> + EFI_STATUS Status;
> + EFI_SIMPLE_NETWORK_DRIVER *Snp;
> + UINT32 MacBase;
> +
> + Snp = INSTANCE_FROM_SNP_THIS (This);
> +
> + // Check preliminaries
> + if (This == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> + if (Snp->SnpMode.State != EfiSimpleNetworkInitialized) {
> + return EFI_NOT_STARTED;
> + }
> +
> + // Get MAC base address
> + MacBase = (UINT32)Snp->Dev->Resources[0].AddrRangeMin;
> +
> + // Update the media status
> + Status = PhyLinkAdjustEmacConfig (&Snp->PhyDriver, MacBase);
> + if (EFI_ERROR(Status)) {
> + Snp->SnpMode.MediaPresent = FALSE;
> + } else {
> + Snp->SnpMode.MediaPresent = TRUE;
> + }
> +
> + // TxBuff
> + if (TxBuff != NULL) {
> + //
> + // Get a recycled buf from Snp->RecycledTxBuf
> + //
> + if (Snp->RecycledTxBufCount == 0) {
> + *TxBuff = NULL;
> + } else {
> + Snp->RecycledTxBufCount--;
> + *TxBuff = (VOID *) (UINTN) Snp->RecycledTxBuf[Snp-
> >RecycledTxBufCount];
> + }
> + }
> +
> + // Check DMA Irq status
> + EmacGetDmaStatus (IrqStat, MacBase);
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Places a packet in the transmit queue of a network interface.
> +
> + This function places the packet specified by Header and Buffer on
> the transmit
> + queue. If HeaderSize is nonzero and HeaderSize is not equal to
> + This->Mode->MediaHeaderSize, then EFI_INVALID_PARAMETER will be
> returned. If
> + BufferSize is less than This->Mode->MediaHeaderSize, then
> EFI_BUFFER_TOO_SMALL
> + will be returned. If Buffer is NULL, then EFI_INVALID_PARAMETER
> will be
> + returned. If HeaderSize is nonzero and DestAddr or Protocol is
> NULL, then
> + EFI_INVALID_PARAMETER will be returned. If the transmit engine of
> the network
> + interface is busy, then EFI_NOT_READY will be returned. If this
> packet can be
> + accepted by the transmit engine of the network interface, the
> packet contents
> + specified by Buffer will be placed on the transmit queue of the
> network
> + interface, and EFI_SUCCESS will be returned. GetStatus() can be
> used to
> + determine when the packet has actually been transmitted. The
> contents of the
> + Buffer must not be modified until the packet has actually been
> transmitted.
> + The Transmit() function performs nonblocking I/O. A caller who
> wants to perform
> + blocking I/O, should call Transmit(), and then GetStatus() until
> the
> + transmitted buffer shows up in the recycled transmit buffer.
> + If the driver has not been initialized, EFI_DEVICE_ERROR will be
> returned.
> +
> + @param Snp A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL
> instance.
> + @param HdrSize The size, in bytes, of the media header to be
> filled in by the
> + Transmit() function. If HeaderSize is nonzero,
> then it must
> + be equal to This->Mode->MediaHeaderSize and the
> DestAddr and
> + Protocol parameters must not be NULL.
> + @param BuffSize The size, in bytes, of the entire packet (media
> header and
> + data) to be transmitted through the network
> interface.
> + @param Data A pointer to the packet (media header followed
> by data) to be
> + transmitted. This parameter cannot be NULL. If
> HeaderSize is
> + zero, then the media header in Buffer must
> already be filled
> + in by the caller. If HeaderSize is nonzero, then
> the media
> + header will be filled in by the Transmit()
> function.
> + @param SrcAddr The source HW MAC address. If HeaderSize is
> zero, then this
> + parameter is ignored. If HeaderSize is nonzero
> and SrcAddr
> + is NULL, then This->Mode->CurrentAddress is used
> for the
> + source HW MAC address.
> + @param DstAddr The destination HW MAC address. If HeaderSize is
> zero, then
> + this parameter is ignored.
> + @param Protocol The type of header to build. If HeaderSize is
> zero, then this
> + parameter is ignored. See RFC 1700, section
> "Ether Types,"
> + for examples.
> +
> + @retval EFI_SUCCESS The packet was placed on the
> transmit queue.
> + @retval EFI_NOT_STARTED The network interface has not been
> started.
> + @retval EFI_NOT_READY The network interface is too busy to
> accept this
> + transmit request.
> + @retval EFI_BUFFER_TOO_SMALL The BufferSize parameter is too
> small.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported
> + value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by
> the network interface.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpTransmit (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
> + IN UINTN HdrSize,
> + IN UINTN BuffSize,
> + IN VOID* Data,
> + IN EFI_MAC_ADDRESS *SrcAddr OPTIONAL,
> + IN EFI_MAC_ADDRESS *DstAddr OPTIONAL,
> + IN UINT16 *Protocol OPTIONAL
> + )
> +{
> + EFI_SIMPLE_NETWORK_DRIVER *Snp;
> + UINT32 DescNum;
> + DESIGNWARE_HW_DESCRIPTOR *TxDescriptor;
> + UINT8* EthernetPacket;
> + UINT64 *Tmp;
> + UINT32 MacBase;
> +
> + EthernetPacket = Data;
> +
> + Snp = INSTANCE_FROM_SNP_THIS (This);
> +
> + if (EFI_ERROR (EfiAcquireLockOrFail (&Snp->Lock))) {
> + return EFI_ACCESS_DENIED;
> + }
> +
> + // Check preliminaries
> + if ((This == NULL) || (Data == NULL)) {
> + return EFI_INVALID_PARAMETER;
> + }
> + if (Snp->SnpMode.State != EfiSimpleNetworkInitialized) {
> + return EFI_NOT_STARTED;
> + }
> +
> + Snp->MacDriver.TxCurrentDescriptorNum = Snp-
> >MacDriver.TxNextDescriptorNum;
> + DescNum = Snp->MacDriver.TxCurrentDescriptorNum;
> +
> + TxDescriptor = Snp->MacDriver.TxdescRing[0] + (DescNum);;
> +
> + // Ensure header is correct size if non-zero
> + if (HdrSize) {
> + if (HdrSize != Snp->SnpMode.MediaHeaderSize) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + if ((DstAddr == NULL) || (Protocol == NULL)) {
> + return EFI_INVALID_PARAMETER;
> + }
> + }
> +
> + // Ensure buffer size is valid
> + if (BuffSize < Snp->SnpMode.MediaHeaderSize) {
> + return EFI_BUFFER_TOO_SMALL;
> + }
> +
> +
> + if (HdrSize) {
> + EthernetPacket[0] = DstAddr->Addr[0];
> + EthernetPacket[1] = DstAddr->Addr[1];
> + EthernetPacket[2] = DstAddr->Addr[2];
> + EthernetPacket[3] = DstAddr->Addr[3];
> + EthernetPacket[4] = DstAddr->Addr[4];
> + EthernetPacket[5] = DstAddr->Addr[5];
> +
> + EthernetPacket[6] = SrcAddr->Addr[0];
> + EthernetPacket[7] = SrcAddr->Addr[1];
> + EthernetPacket[8] = SrcAddr->Addr[2];
> + EthernetPacket[9] = SrcAddr->Addr[3];
> + EthernetPacket[10] = SrcAddr->Addr[4];
> + EthernetPacket[11] = SrcAddr->Addr[5];
> +
> + EthernetPacket[13] = *Protocol & 0xFF;
> + EthernetPacket[12] = (*Protocol & 0xFF00) >> 8;
> + }
> +
> + CopyMem((VOID*)(UINTN)TxDescriptor->Addr, EthernetPacket,
> BuffSize);
> +
> + TxDescriptor->Tdes1 = (BuffSize << TDES1_SIZE1SHFT) &
> + TDES1_SIZE1MASK;
> +
> + TxDescriptor->Tdes0 |= (TDES0_TXFIRST |
> + TDES0_TXLAST |
> + TDES0_OWN);
> +
> + // Increase descriptor number
> + DescNum++;
> + if (DescNum >= CONFIG_TX_DESCR_NUM)
> + DescNum = 0;
> +
> + Snp->MacDriver.TxNextDescriptorNum = DescNum;
> +
> + if ((Snp->MaxRecycledTxBuf + SNP_TX_BUFFER_INCREASEMENT) >=
> SNP_MAX_TX_BUFFER_NUM) {
> + return EFI_NOT_READY;
> + }
> +
> + if (Snp->RecycledTxBufCount < Snp->MaxRecycledTxBuf) {
> + Snp->RecycledTxBuf[Snp->RecycledTxBufCount] = (UINT64) Data;
> + Snp->RecycledTxBufCount ++;
> + } else {
> + Tmp = AllocatePool (sizeof (UINT64) * (Snp->MaxRecycledTxBuf +
> SNP_TX_BUFFER_INCREASEMENT));
> + if (Tmp == NULL) {
> + return EFI_DEVICE_ERROR;
> + }
> + CopyMem (Tmp, Snp->RecycledTxBuf, sizeof (UINT64) * Snp-
> >RecycledTxBufCount);
> + FreePool (Snp->RecycledTxBuf);
> + Snp->RecycledTxBuf = Tmp;
> + Snp->MaxRecycledTxBuf += SNP_TX_BUFFER_INCREASEMENT;
> + }
> +
> + // Get MAC base address
> + MacBase = (UINT32)Snp->Dev->Resources[0].AddrRangeMin;
> +
> + // Start the transmission
> + EmacDmaStart (MacBase);
> +
> + EfiReleaseLock (&Snp->Lock);
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Receives a packet from a network interface.
> +
> + This function retrieves one packet from the receive queue of a
> network interface.
> + If there are no packets on the receive queue, then EFI_NOT_READY
> will be
> + returned. If there is a packet on the receive queue, and the size
> of the packet
> + is smaller than BufferSize, then the contents of the packet will
> be placed in
> + Buffer, and BufferSize will be updated with the actual size of the
> packet.
> + In addition, if SrcAddr, DestAddr, and Protocol are not NULL, then
> these values
> + will be extracted from the media header and returned. EFI_SUCCESS
> will be
> + returned if a packet was successfully received.
> + If BufferSize is smaller than the received packet, then the size
> of the receive
> + packet will be placed in BufferSize and EFI_BUFFER_TOO_SMALL will
> be returned.
> + If the driver has not been initialized, EFI_DEVICE_ERROR will be
> returned.
> +
> + @param Snp A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL
> instance.
> + @param HdrSize The size, in bytes, of the media header received
> on the network
> + interface. If this parameter is NULL, then the
> media header size
> + will not be returned.
> + @param BuffSize On entry, the size, in bytes, of Buffer. On
> exit, the size, in
> + bytes, of the packet that was received on the
> network interface.
> + @param Data A pointer to the data buffer to receive both the
> media
> + header and the data.
> + @param SrcAddr The source HW MAC address. If this parameter is
> NULL, the HW
> + MAC source address will not be extracted from
> the media header.
> + @param DstAddr The destination HW MAC address. If this parameter
> is NULL,
> + the HW MAC destination address will not be
> extracted from
> + the media header.
> + @param Protocol The media header type. If this parameter is
> NULL, then the
> + protocol will not be extracted from the media
> header. See
> + RFC 1700 section "Ether Types" for examples.
> +
> + @retval EFI_SUCCESS The received data was stored in
> Buffer, and
> + BufferSize has been updated to the
> number of
> + bytes received.
> + @retval EFI_NOT_STARTED The network interface has not been
> started.
> + @retval EFI_NOT_READY No packets have been received on the
> network interface.
> + @retval EFI_BUFFER_TOO_SMALL BufferSize is too small for the
> received packets.
> + BufferSize has been updated to the
> required size.
> + @retval EFI_INVALID_PARAMETER One or more of the following
> conditions is TRUE:
> + * The This parameter is NULL
> + * The This parameter does not point
> to a valid
> + EFI_SIMPLE_NETWORK_PROTOCOL
> structure.
> + * The BufferSize parameter is NULL
> + * The Buffer parameter is NULL
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +SnpReceive (
> + IN EFI_SIMPLE_NETWORK_PROTOCOL *This,
> + OUT UINTN *HdrSize OPTIONAL,
> + IN OUT UINTN *BuffSize,
> + OUT VOID *Data,
> + OUT EFI_MAC_ADDRESS *SrcAddr OPTIONAL,
> + OUT EFI_MAC_ADDRESS *DstAddr OPTIONAL,
> + OUT UINT16 *Protocol OPTIONAL
> + )
> +{
> + EFI_SIMPLE_NETWORK_DRIVER *Snp;
> + EFI_MAC_ADDRESS Dst;
> + EFI_MAC_ADDRESS Src;
> + UINT32 Length, DesciptorStatus;
> + UINT8* RawData;
> + UINT32 DescNum;
> + DESIGNWARE_HW_DESCRIPTOR *RxDescriptor;
> +
> + Snp = INSTANCE_FROM_SNP_THIS (This);
> +
> + // Check preliminaries
> + if ((This == NULL) || (Data == NULL)) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + if (Snp->SnpMode.State != EfiSimpleNetworkInitialized) {
> + return EFI_NOT_STARTED;
> + }
> +
> + Snp = INSTANCE_FROM_SNP_THIS (This);
> +
> + if (EFI_ERROR (EfiAcquireLockOrFail (&Snp->Lock))) {
> + return EFI_ACCESS_DENIED;
> + }
> +
> + Snp->MacDriver.RxCurrentDescriptorNum = Snp-
> >MacDriver.RxNextDescriptorNum;
> + DescNum = Snp->MacDriver.RxCurrentDescriptorNum;
> + RxDescriptor = Snp->MacDriver.RxdescRing[0]+(DescNum);
> +
> + RawData = (UINT8*) Data;
> +
> + DesciptorStatus = RxDescriptor->Tdes0;
> +
> + if (DesciptorStatus & ((UINT32)RDES0_OWN)) {
> + goto ReleaseLock;
> + }
> +
> +
> + if (DesciptorStatus & RDES0_SAF) {
> + DEBUG ((EFI_D_WARN, "SNP:DXE: Rx Descritpor Status Error: Source
> Address Filter Fail\n"));
> + return EFI_DEVICE_ERROR;
> + }
> +
> + if (DesciptorStatus & RDES0_AFM) {
> + DEBUG ((EFI_D_WARN, "SNP:DXE: Rx Descritpor Status Error:
> Destination Address Filter Fail\n"));
> + return EFI_DEVICE_ERROR;
> + }
> +
> + if (DesciptorStatus & RDES0_ES) {
> + // Check for errors
> + if (DesciptorStatus & RDES0_RE) {
> + DEBUG ((EFI_D_WARN, "SNP:DXE: Rx Descritpor Status Error:
> Receive Error\n"));
> + }
> + if (DesciptorStatus & RDES0_DE) {
> + DEBUG ((EFI_D_WARN, "SNP:DXE: Rx Descritpor Status Error:
> Receive Error\n"));
> + }
> + if (DesciptorStatus & RDES0_RWT) {
> + DEBUG ((EFI_D_WARN, "SNP:DXE: Rx Descritpor Status Error:
> Watchdog Timeout\n"));
> + }
> + if (DesciptorStatus & RDES0_LC) {
> + DEBUG ((EFI_D_WARN, "SNP:DXE: Rx Descritpor Status Error: Late
> Collision\n"));
> + }
> + if (DesciptorStatus & RDES0_GF) {
> + DEBUG ((EFI_D_WARN, "SNP:DXE: Rx Descritpor Status Error:
> Giant Frame\n"));
> + }
> + if (DesciptorStatus & RDES0_OE) {
> + DEBUG ((EFI_D_WARN, "SNP:DXE: Rx Descritpor Status Error:
> Overflow Error\n"));
> + }
> + if (DesciptorStatus & RDES0_LE) {
> + DEBUG ((EFI_D_WARN, "SNP:DXE: Rx Descritpor Status
> Error:Length Error\n"));
> + }
> + if (DesciptorStatus & RDES0_DBE) {
> + DEBUG ((EFI_D_WARN, "SNP:DXE: Rx Descritpor Status Error:
> Dribble Bit Error\n"));
> + }
> +
> + // Check descriptor error status
> + if (DesciptorStatus & RDES0_CE) {
> + DEBUG ((EFI_D_WARN, "SNP:DXE: Rx Descritpor Status Error: CRC
> Error\n"));
> + }
> + return EFI_DEVICE_ERROR;
> + }
> +
> + Length = (DesciptorStatus >> RDES0_FL_SHIFT) & RDES0_FL_MASK;
> + if (!Length) {
> + DEBUG ((EFI_D_WARN, "SNP:DXE: Error: Invalid Frame Packet length
> \r\n"));
> + return EFI_NOT_READY;
> + }
> + // Check buffer size
> + if (*BuffSize < Length) {
> + DEBUG ((EFI_D_WARN, "SNP:DXE: Error: Buffer size is too
> small\n"));
> + return EFI_BUFFER_TOO_SMALL;
> + }
> + *BuffSize = Length;
> +
> + if (HdrSize != NULL)
> + *HdrSize = Snp->SnpMode.MediaHeaderSize;
> +
> + CopyMem (RawData, (VOID*)(UINTN) RxDescriptor->Addr, *BuffSize);
> +
> + if (DstAddr != NULL) {
> + Dst.Addr[0] = RawData[0];
> + Dst.Addr[1] = RawData[1];
> + Dst.Addr[2] = RawData[2];
> + Dst.Addr[3] = RawData[3];
> + Dst.Addr[4] = RawData[4];
> + Dst.Addr[5] = RawData[5];
> + CopyMem (DstAddr, &Dst, NET_ETHER_ADDR_LEN);
> +Print(L"received from source address %x %x\n\n", DstAddr, &Dst);
> + }
> +
> + // Get the source address
> + if (SrcAddr != NULL) {
> + Src.Addr[0] = RawData[6];
> + Src.Addr[1] = RawData[7];
> + Src.Addr[2] = RawData[8];
> + Src.Addr[3] = RawData[9];
> + Src.Addr[4] = RawData[10];
> + Src.Addr[5] = RawData[11];
> +Print(L"received from source address %x %x\n\n", SrcAddr, &Src);
> + CopyMem (SrcAddr,&Src, NET_ETHER_ADDR_LEN);
> + }
> +
> + // Get the protocol
> + if (Protocol != NULL) {
> + *Protocol = NTOHS (RawData[12] | (RawData[13] >> 8) |
> (RawData[14] >> 16) | (RawData[15] >> 24));
> + }
> +
> + RxDescriptor->Tdes0 |= (UINT32)RDES0_OWN;
> +
> + DescNum++;
> +
> + if (DescNum >= CONFIG_RX_DESCR_NUM)
> + DescNum = 0;
> +
> + Snp->MacDriver.RxNextDescriptorNum = DescNum;
> +
> + EfiReleaseLock (&Snp->Lock);
> +
> + return EFI_SUCCESS;
> +
> + ReleaseLock:
> + EfiReleaseLock (&Snp->Lock);
> + return EFI_NOT_READY;
> +
> +}
> +
> diff --git a/Silicon/DesignWare/Drivers/DwEmacSnpDxe/EmacDxeUtil.c
> b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/EmacDxeUtil.c
> new file mode 100755
> index 000000000000..a7f29f6cd0c7
> --- /dev/null
> +++ b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/EmacDxeUtil.c
> @@ -0,0 +1,684 @@
> +/** @file
> +
> + Copyright (c) 2011 - 2019, Intel Corporaton. 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.
> +
> + The original software modules are licensed as follows:
> +
> + Copyright (c) 2012 - 2014, ARM Limited. All rights reserved.
> + Copyright (c) 2004 - 2010, 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 3 Clause LICENSE ON AN
> "AS IS" BASIS,
> + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS
> OR IMPLIED.
> +**/
> +
> +#include "EmacDxeUtil.h"
> +#include "PhyDxeUtil.h"
> +
> +VOID
> +EFIAPI
> +EmacSetMacAddress (
> + IN EFI_MAC_ADDRESS *MacAddress,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + DEBUG ((EFI_D_INFO,"SNP:MAC: %a ()\r\n", __FUNCTION__));
> +
> + // Note: This MAC_ADDR0 registers programming sequence cannot be
> swap:
> + // Must program HIGH Offset first before LOW Offset
> + // because synchronization is triggered when MAC Address0 Low
> Register are written.
> + MmioWrite32 (MacBaseAddress
> +DW_EMAC_GMACGRP_MAC_ADDRESS0_HIGH_OFST,
> + (UINT32)(MacAddress->Addr[4] & 0xFF) |
> + ((MacAddress->Addr[5] & 0xFF) << 8)
> + );
> + // MacAddress->Addr[0,1,2] is the 3 bytes OUI
> + MmioWrite32 (MacBaseAddress +
> DW_EMAC_GMACGRP_MAC_ADDRESS0_LOW_OFST,
> + (MacAddress->Addr[0] & 0xFF) |
> + ((MacAddress->Addr[1] & 0xFF) << 8) |
> + ((MacAddress->Addr[2] & 0xFF) << 16) |
> + ((MacAddress->Addr[3] & 0xFF) << 24)
> + );
> +
> + DEBUG ((EFI_D_INFO, "SNP:MAC: gmacgrp_mac_address0_low = 0x%08X
> \r\n", MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_MAC_ADDRESS0_LOW_OFST)));
> + DEBUG ((EFI_D_INFO, "SNP:MAC: gmacgrp_mac_address0_high = 0x%08X
> \r\n", MmioRead32 (MacBaseAddress
> +DW_EMAC_GMACGRP_MAC_ADDRESS0_HIGH_OFST)));
> +}
> +
> +
> +VOID
> +EFIAPI
> +EmacReadMacAddress (
> + OUT EFI_MAC_ADDRESS *MacAddress,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + UINT32 MacAddrHighValue;
> + UINT32 MacAddrLowValue;
> +
> + DEBUG ((EFI_D_INFO, "SNP:MAC: %a ()\r\n", __FUNCTION__));
> +
> + // Read the Mac Addr high register
> + MacAddrHighValue = (MmioRead32 (MacBaseAddress
> +DW_EMAC_GMACGRP_MAC_ADDRESS0_HIGH_OFST) & 0xFFFF);
> + // Read the Mac Addr low register
> + MacAddrLowValue = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_MAC_ADDRESS0_LOW_OFST);
> +
> + SetMem (MacAddress, sizeof(*MacAddress), 0);
> + MacAddress->Addr[0] = (MacAddrLowValue & 0xFF);
> + MacAddress->Addr[1] = (MacAddrLowValue & 0xFF00) >> 8;
> + MacAddress->Addr[2] = (MacAddrLowValue & 0xFF0000) >> 16;
> + MacAddress->Addr[3] = (MacAddrLowValue & 0xFF000000) >> 24;
> + MacAddress->Addr[4] = (MacAddrHighValue & 0xFF);
> + MacAddress->Addr[5] = (MacAddrHighValue & 0xFF00) >> 8;
> +
> + DEBUG ((EFI_D_INFO, "SNP:MAC: MAC Address =
> %02X:%02X:%02X:%02X:%02X:%02X\r\n",
> + MacAddress->Addr[0], MacAddress->Addr[1], MacAddress->Addr[2],
> + MacAddress->Addr[3], MacAddress->Addr[4], MacAddress->Addr[5]
> + ));
> +
> +}
> +
> +EFI_STATUS
> +EFIAPI
> +EmacDxeInitialization (
> + IN EMAC_DRIVER* EmacDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + DEBUG ((EFI_D_INFO, "SNP:MAC: %a ()\r\n", __FUNCTION__));
> +
> + // Init EMAC DMA
> + EmacDmaInit (EmacDriver, MacBaseAddress);
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +EFI_STATUS
> +EFIAPI
> +EmacDmaInit (
> + IN EMAC_DRIVER *EmacDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + UINT32 DmaConf;
> + UINT32 DmaOpmode;
> + UINT32 InterruptEnable;
> +
> + DEBUG ((EFI_D_INFO, "SNP:MAC: %a ()\r\n", __FUNCTION__));
> +
> + // This section provides the instructions for initializing the DMA
> registers in the proper sequence. This
> + // initialization sequence can be done after the EMAC interface
> initialization has been completed. Perform
> + // the following steps to initialize the DMA:
> + // 1. Provide a software reset to reset all of the EMAC internal
> registers and logic. (DMA Register 0 (Bus
> + // Mode Register) � bit 0).
> +
> + MmioOr32 (MacBaseAddress +
> + DW_EMAC_DMAGRP_BUS_MODE_OFST,
> + DW_EMAC_DMAGRP_BUS_MODE_SWR_SET_MSK);
> +
> + // 2. Wait for the completion of the reset process (poll bit 0 of
> the DMA Register 0 (Bus Mode Register),
> + // which is only cleared after the reset operation is completed).
> + while (DW_EMAC_DMAGRP_BUS_MODE_SWR_GET (MmioRead32 (MacBaseAddress
> + DW_EMAC_DMAGRP_BUS_MODE_OFST)));
> +
> + // 3. Poll the bits of Register 11 (AHB or AXI Status) to confirm
> that all previously initiated (before
> + // software reset) or ongoing transactions are complete.
> + // Note: If the application cannot poll the register after soft
> reset (because of performance reasons), then
> + // it is recommended that you continue with the next steps and
> check this register again (as
> + // mentioned in 12 on page 1-72) before triggering the DMA
> operations.�
> +
> + // 4. Program the following fields to initialize the Bus Mode
> Register by setting values in DMA Register 0
> + // (Bus Mode Register):
> + // � Mixed Burst and AAL
> + // � Fixed burst or undefined burst
> + // � Burst length values and burst mode values
> + // � Descriptor Length (only valid if Ring Mode is used)
> + // � TX and RX DMA Arbitration scheme
> + // 5. Program the interface options in Register 10 (AXI Bus Mode
> Register). If fixed burst-length is enabled,
> + // then select the maximum burst-length possible on the bus
> (bits[7:1]).�
> +
> + DmaConf = DW_EMAC_DMAGRP_BUS_MODE_FB_SET_MSK |
> DW_EMAC_DMAGRP_BUS_MODE_PBL_SET_MSK |
> DW_EMAC_DMAGRP_BUS_MODE_PR_SET_MSK;
> + MmioOr32 (MacBaseAddress +
> + DW_EMAC_DMAGRP_BUS_MODE_OFST,
> + DmaConf);
> +
> + // 6. Create a proper descriptor chain for transmit and receive.
> In addition, ensure that the receive descriptors
> + // are owned by DMA (bit 31 of descriptor should be set). When OSF
> mode is used, at least two
> + // descriptors are required.
> + // 7. Make sure that your software creates three or more different
> transmit or receive descriptors in the
> + // chain before reusing any of the descriptors.
> + // 8. Initialize receive and transmit descriptor list address with
> the base address of the transmit and receive
> + // descriptor (Register 3 (Receive Descriptor List Address
> Register) and Register 4 (Transmit Descriptor
> + // List Address Register) respectively).
> +
> + EmacSetupTxdesc (EmacDriver, MacBaseAddress);
> + EmacSetupRxdesc (EmacDriver, MacBaseAddress);
> +
> + // 9. Program the following fields to initialize the mode of
> operation in Register 6 (Operation Mode
> + // Register):
> + // � Receive and Transmit Store And Forward�
> + // � Receive and Transmit Threshold Control (RTC and TTC)�
> + // � Hardware Flow Control enable�
> + // � Flow Control Activation and De-activation thresholds for MTL
> Receive and Transmit FIFO buffers
> + // (RFA and RFD)�
> + // � Error frame and undersized good frame forwarding enable�
> + // � OSF Mode�
> +
> + DmaOpmode = DW_EMAC_DMAGRP_OPERATION_MODE_FTF_SET_MSK |
> DW_EMAC_DMAGRP_OPERATION_MODE_TSF_SET_MSK;
> + MmioOr32 (MacBaseAddress +
> + DW_EMAC_DMAGRP_OPERATION_MODE_OFST,
> + DmaOpmode);
> + //while (DW_EMAC_DMAGRP_OPERATION_MODE_FTF_GET (MmioRead32
> (MacBaseAddress + DW_EMAC_DMAGRP_OPERATION_MODE_OFST)));
> +
> + // 10.Clear the interrupt requests, by writing to those bits of
> the status register (interrupt bits only) that are
> + // set. For example, by writing 1 into bit 16, the normal
> interrupt summary clears this bit (DMA Register 5 (Status Register)).
> + MmioOr32 (MacBaseAddress +
> + DW_EMAC_DMAGRP_STATUS_OFST,
> + 0x1FFFF);
> +
> + // 11.Enable the interrupts by programming Register 7 (Interrupt
> Enable Register).
> + InterruptEnable = DW_EMAC_DMAGRP_INTERRUPT_ENABLE_TIE_SET_MSK |
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_RIE_SET_MSK |
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_NIE_SET_MSK |
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_AIE_SET_MSK |
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_FBE_SET_MSK |
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_UNE_SET_MSK |
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_TSE_SET_MSK |
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_TUE_SET_MSK |
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_TJE_SET_MSK |
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_OVE_SET_MSK |
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_RUE_SET_MSK |
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_RSE_SET_MSK |
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_RWE_SET_MSK |
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_ETE_SET_MSK |
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_ERE_SET_MSK;
> + MmioWrite32 (MacBaseAddress +
> + DW_EMAC_DMAGRP_INTERRUPT_ENABLE_OFST,
> + InterruptEnable);
> +
> + // 12.Read Register 11 (AHB or AXI Status) to confirm that all
> previous transactions are complete.�
> + // Note: If any previous transaction is still in progress when you
> read the Register 11 (AHB or AXI
> + // Status), then it is strongly recommended to check the slave
> components addressed by the
> + // master interface.
> + if (MmioRead32 (MacBaseAddress +
> DW_EMAC_DMAGRP_AHB_OR_AXI_STATUS_OFST) != 0) {
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Error! Previous AXI transaction is
> still in progress\r\n"));
> + //check the slave components addressed by the master interface
> + return EFI_DEVICE_ERROR;
> + }
> +
> + DmaOpmode = DW_EMAC_DMAGRP_OPERATION_MODE_ST_SET_MSK |
> DW_EMAC_DMAGRP_OPERATION_MODE_SR_SET_MSK;
> + MmioOr32 (MacBaseAddress +
> + DW_EMAC_DMAGRP_OPERATION_MODE_OFST,
> + DmaOpmode);
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +EFI_STATUS
> +EFIAPI
> +EmacSetupTxdesc (
> + IN EMAC_DRIVER *EmacDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + INTN Index;
> + DESIGNWARE_HW_DESCRIPTOR *TxDescriptor;
> +
> + for (Index = 0; Index < CONFIG_TX_DESCR_NUM; Index++) {
> + TxDescriptor = (VOID*)EmacDriver->TxdescRingMap[0]+(Index*16);;
> + TxDescriptor->Addr = (UINT32)(UINTN) EmacDriver->TxBufferMap[0]
> + (Index*2048);
> + TxDescriptor->AddrNext = (UINT32)(UINTN) EmacDriver-
> >TxdescRingMap[0] + ((Index + 1)*16);
> + TxDescriptor->Tdes0 = TDES0_TXCHAIN;
> + TxDescriptor->Tdes1 = 0;
> + }
> +
> + // Correcting the last pointer of the chain
> + TxDescriptor->AddrNext = (UINT32)(UINTN) EmacDriver-
> >TxdescRingMap[0];
> +
> + // Write the address of tx descriptor list
> + MmioWrite32(MacBaseAddress +
> + DW_EMAC_DMAGRP_TRANSMIT_DESCRIPTOR_LIST_ADDRESS_OFST,
> + (UINT32)(UINTN) EmacDriver->TxdescRingMap[0]);
> +
> + // Initialize the descriptor number
> + EmacDriver->TxCurrentDescriptorNum = 0;
> + EmacDriver->TxNextDescriptorNum = 0;
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +EFI_STATUS
> +EFIAPI
> +EmacSetupRxdesc (
> + IN EMAC_DRIVER *EmacDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + INTN Index;
> + DESIGNWARE_HW_DESCRIPTOR *RxDescriptor;
> +
> + for (Index = 0; Index < CONFIG_RX_DESCR_NUM; Index++) {
> + RxDescriptor = (VOID*) (EmacDriver->RxdescRingMap[0] +
> (Index*16));
> + RxDescriptor->Addr = (UINT32)(UINTN) EmacDriver->RxBufferMap[0]
> + (Index*2048);
> + RxDescriptor->AddrNext = (UINT32)(UINTN) EmacDriver-
> >RxdescRingMap[0] + ((Index + 1)*16);
> + RxDescriptor->Tdes0 = RDES0_OWN;
> + RxDescriptor->Tdes1 = RDES1_CHAINED | RX_MAX_PACKET;
> + }
> +
> + // Correcting the last pointer of the chain
> + RxDescriptor->AddrNext = (UINT32)(UINTN) EmacDriver-
> >RxdescRingMap[0];
> +
> + // Write the address of tx descriptor list
> + MmioWrite32(MacBaseAddress +
> + DW_EMAC_DMAGRP_RECEIVE_DESCRIPTOR_LIST_ADDRESS_OFST,
> + (UINT32)(UINTN) EmacDriver->RxdescRingMap[0]);
> +
> + // Initialize the descriptor number
> + EmacDriver->RxCurrentDescriptorNum = 0;
> + EmacDriver->RxNextDescriptorNum = 0;
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +VOID
> +EFIAPI
> +EmacStartTransmission (
> + IN UINT32 MacBaseAddress
> + )
> +{
> + DEBUG ((EFI_D_INFO, "SNP:MAC: %a ()\r\n", __FUNCTION__));
> + MmioOr32 (MacBaseAddress +
> + DW_EMAC_GMACGRP_MAC_CONFIGURATION_OFST,
> + DW_EMAC_GMACGRP_MAC_CONFIGURATION_RE_SET_MSK |
> + DW_EMAC_GMACGRP_MAC_CONFIGURATION_TE_SET_MSK
> + );
> +}
> +
> +
> +EFI_STATUS
> +EFIAPI
> +EmacRxFilters (
> + IN UINT32 ReceiveFilterSetting,
> + IN BOOLEAN Reset,
> + IN UINTN NumMfilter OPTIONAL,
> + IN EFI_MAC_ADDRESS *Mfilter OPTIONAL,
> + IN UINT32 MacBaseAddress
> + )
> + {
> + UINT32 MacFilter;
> + UINT32 Crc;
> + UINT32 Count;
> + UINT32 HashReg;
> + UINT32 HashBit;
> + UINT32 Reg;
> + UINT32 Val;
> +
> + // If reset then clear the filter registers
> + if (Reset) {
> + for (Count = 0; Count < NumMfilter; Count++)
> + {
> + MmioWrite32 (MacBaseAddress + HASH_TABLE_REG(Count),
> 0x00000000);
> + }
> + }
> +
> + // Set MacFilter to the reset value of
> the DW_EMAC_GMACGRP_MAC_FRAME_FILTER register.
> + MacFilter = DW_EMAC_GMACGRP_MAC_FRAME_FILTER_RESET;
> +
> + if (ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_UNICAST) {
> + //DEBUG ((EFI_D_INFO, "SNP:MAC: Enable Unicast Frame
> Reception\n"));
> + }
> +
> + if (ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST) {
> +
> + //DEBUG ((EFI_D_INFO, "SNP:MAC: Enable Hash Multicast Frame
> Reception\n"));
> + MacFilter |= DW_EMAC_GMACGRP_MAC_FRAME_FILTER_HMC_SET_MSK;
> +
> + // Set the hash tables
> + if ((NumMfilter > 0) && (!Reset)) {
> + // Go through each filter address and set appropriate bits on
> hash table
> + for (Count = 0; Count < NumMfilter; Count++) {
> + // Generate a 32-bit CRC
> + Crc = GenEtherCrc32 (&Mfilter[Count], 6);
> + // reserve CRC + take upper 8 bit = take lower 8 bit and
> reverse it
> + Val = BitReverse(Crc & 0xff);
> + // The most significant bits determines the register to be
> used (Hash Table Register X),
> + // and the least significant five bits determine the bit
> within the register.
> + // For example, a hash value of 8b'10111111 selects Bit 31
> of the Hash Table Register 5.
> + HashReg = (Val >> 5);
> + HashBit = (Val & 31);
> +
> + Reg = MmioRead32(MacBaseAddress + HASH_TABLE_REG(HashReg));
> + // set 1 to HashBit of HashReg
> + // for example, set 1 to bit 31 to Reg 5 as in above example
> + Reg |= (1 << HashBit);
> + MmioWrite32(MacBaseAddress + HASH_TABLE_REG(HashReg), Reg);
> + }
> + }
> + }
> +
> + if ((ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST)
> == 0) {
> + MacFilter |= DW_EMAC_GMACGRP_MAC_FRAME_FILTER_DBF_SET_MSK;
> + } else if (ReceiveFilterSetting &
> EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST) {
> + }
> +
> + if (ReceiveFilterSetting & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS)
> {
> + MacFilter |= DW_EMAC_GMACGRP_MAC_FRAME_FILTER_PR_SET_MSK;
> + }
> +
> + if (ReceiveFilterSetting &
> EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST) {
> + MacFilter |= ( DW_EMAC_GMACGRP_MAC_FRAME_FILTER_PM_SET_MSK);
> + }
> +
> + // Set MacFilter to EMAC register
> + MmioWrite32 (MacBaseAddress
> + DW_EMAC_GMACGRP_MAC_FRAME_FILTER_OFST, MacFilter);
> + return EFI_SUCCESS;
> +}
> +
> +
> +UINT32
> +EFIAPI
> +GenEtherCrc32 (
> + IN EFI_MAC_ADDRESS *Mac,
> + IN UINT32 AddrLen
> + )
> +{
> + INT32 Iter;
> + UINT32 Remainder;
> + UINT8 *Ptr;
> +
> + Iter = 0;
> + Remainder = 0xFFFFFFFF; // 0xFFFFFFFF is standard seed for
> Ethernet
> +
> + // Convert Mac Address to array of bytes
> + Ptr = (UINT8*)Mac;
> +
> + // Generate the Crc bit-by-bit (LSB first)
> + while (AddrLen--) {
> + Remainder ^= *Ptr++;
> + for (Iter = 0;Iter < 8;Iter++) {
> + // Check if exponent is set
> + if (Remainder & 1) {
> + Remainder = (Remainder >> 1) ^ CRC_POLYNOMIAL;
> + } else {
> + Remainder = (Remainder >> 1) ^ 0;
> + }
> + }
> + }
> +
> + return (~Remainder);
> +}
> +
> +
> +STATIC CONST UINT8 NibbleTab[] = {
> + /* 0x0 0000 -> 0000 */ 0x0,
> + /* 0x1 0001 -> 1000 */ 0x8,
> + /* 0x2 0010 -> 0100 */ 0x4,
> + /* 0x3 0011 -> 1100 */ 0xc,
> + /* 0x4 0100 -> 0010 */ 0x2,
> + /* 0x5 0101 -> 1010 */ 0xa,
> + /* 0x6 0110 -> 0110 */ 0x6,
> + /* 0x7 0111 -> 1110 */ 0xe,
> + /* 0x8 1000 -> 0001 */ 0x1,
> + /* 0x9 1001 -> 1001 */ 0x9,
> + /* 0xa 1010 -> 0101 */ 0x5,
> + /* 0xb 1011 -> 1101 */ 0xd,
> + /* 0xc 1100 -> 0011 */ 0x3,
> + /* 0xd 1101 -> 1011 */ 0xb,
> + /* 0xe 1110 -> 0111 */ 0x7,
> + /* 0xf 1111 -> 1111 */ 0xf
> +};
> +
> +UINT8
> +EFIAPI
> +BitReverse (
> + UINT8 X
> + )
> +{
> + return (NibbleTab[X & 0xf] << 4) | NibbleTab[X >> 4];
> +}
> +
> +
> +VOID
> +EFIAPI
> +EmacStopTxRx (
> + IN UINT32 MacBaseAddress
> + )
> +{
> + DEBUG ((EFI_D_INFO, "SNP:MAC: %a ()\r\n", __FUNCTION__));
> +
> + // Stop DMA TX
> + MmioAnd32 (MacBaseAddress +
> + DW_EMAC_DMAGRP_OPERATION_MODE_OFST,
> + DW_EMAC_DMAGRP_OPERATION_MODE_ST_CLR_MSK);
> +
> + // Flush TX
> + MmioOr32 (MacBaseAddress +
> + DW_EMAC_DMAGRP_OPERATION_MODE_OFST,
> + DW_EMAC_DMAGRP_OPERATION_MODE_FTF_SET_MSK);
> +
> + // Stop transmitters
> + MmioAnd32 (MacBaseAddress +
> + DW_EMAC_GMACGRP_MAC_CONFIGURATION_OFST,
> + DW_EMAC_GMACGRP_MAC_CONFIGURATION_RE_CLR_MSK &
> + DW_EMAC_GMACGRP_MAC_CONFIGURATION_TE_CLR_MSK);
> +
> + // Stop DMA RX
> + MmioAnd32 (MacBaseAddress +
> + DW_EMAC_DMAGRP_OPERATION_MODE_OFST,
> + DW_EMAC_DMAGRP_OPERATION_MODE_SR_CLR_MSK);
> +
> +}
> +
> +
> +EFI_STATUS
> +EFIAPI
> +EmacDmaStart (
> + IN UINT32 MacBaseAddress
> + )
> +{
> + // Start the transmission
> + MmioWrite32(MacBaseAddress +
> + DW_EMAC_DMAGRP_TRANSMIT_POLL_DEMAND_OFST,
> + 0x1);
> + return EFI_SUCCESS;
> +}
> +
> +
> +VOID
> +EFIAPI
> +EmacGetDmaStatus (
> + OUT UINT32 *IrqStat OPTIONAL,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + UINT32 DmaStatus;
> + UINT32 ErrorBit;
> + UINT32 Mask = 0;
> +
> + DmaStatus = MmioRead32 (MacBaseAddress +
> + DW_EMAC_DMAGRP_STATUS_OFST);
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_NIS_SET_MSK) {
> + Mask |= DW_EMAC_DMAGRP_STATUS_NIS_SET_MSK;
> + // Rx interrupt
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_RI_SET_MSK) {
> + *IrqStat |= EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT;
> + Mask |= DW_EMAC_DMAGRP_STATUS_RI_SET_MSK;
> + } else {
> + *IrqStat &= ~EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT;
> + }
> + // Tx interrupt
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_TI_SET_MSK) {
> + *IrqStat |= EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT;
> + Mask |= DW_EMAC_DMAGRP_STATUS_TI_SET_MSK;
> + } else {
> + *IrqStat &= ~EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT;
> + }
> + // Tx Buffer
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_TU_SET_MSK){
> + Mask |= DW_EMAC_DMAGRP_STATUS_TU_SET_MSK;
> + }
> + // Early receive interrupt
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_ERI_SET_MSK) {
> + Mask |= DW_EMAC_DMAGRP_STATUS_ERI_SET_MSK;
> + }
> + }
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_AIS_SET_MSK) {
> + Mask |= DW_EMAC_DMAGRP_STATUS_AIS_SET_MSK;
> + // Transmit process stop
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_TPS_SET_MSK) {
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Transmit process stop\n"));
> + Mask |= DW_EMAC_DMAGRP_STATUS_TPS_SET_MSK;
> + }
> + // Transmit jabber timeout
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_TJT_SET_MSK) {
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Transmit jabber timeout\n"));
> + Mask |= DW_EMAC_DMAGRP_STATUS_TJT_SET_MSK;
> + }
> + // Receive FIFO overflow
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_OVF_SET_MSK) {
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Receive FIFO overflow\n"));
> + Mask |= DW_EMAC_DMAGRP_STATUS_OVF_SET_MSK;
> + }
> + // Transmit FIFO underflow
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_UNF_SET_MSK) {
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Receive FIFO underflow\n"));
> + Mask |= DW_EMAC_DMAGRP_STATUS_UNF_SET_MSK;
> + }
> + // Receive buffer unavailable
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_RU_SET_MSK) {
> + //DEBUG ((EFI_D_INFO, "SNP:MAC: Receive buffer
> unavailable\n"));
> + Mask |= DW_EMAC_DMAGRP_STATUS_RU_SET_MSK;
> + }
> +
> + // Receive process stop
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_RPS_SET_MSK) {
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Receive process stop\n"));
> + Mask |= DW_EMAC_DMAGRP_STATUS_RPS_SET_MSK;
> + }
> + // Receive watchdog timeout
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_RWT_SET_MSK) {
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Receive watchdog timeout\n"));
> + Mask |= DW_EMAC_DMAGRP_STATUS_RWT_SET_MSK;
> + }
> + // Early transmit interrupt
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_ETI_SET_MSK) {
> + //DEBUG ((EFI_D_INFO, "SNP:MAC: Early transmit interrupt\n"));
> + Mask |= DW_EMAC_DMAGRP_STATUS_ETI_SET_MSK;
> + }
> + // Fatal bus error
> + if (DmaStatus & DW_EMAC_DMAGRP_STATUS_FBI_SET_MSK) {
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Fatal bus error:\n"));
> + Mask |= DW_EMAC_DMAGRP_STATUS_FBI_SET_MSK;
> +
> + ErrorBit = DW_EMAC_DMAGRP_STATUS_EB_GET (DmaStatus);
> + switch (ErrorBit) {
> + case RX_DMA_WRITE_DATA_TRANSFER_ERROR:
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Rx Dma write data transfer
> error\n"));
> + break;
> + case TX_DMA_READ_DATA_TRANSFER_ERROR:
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Tx Dma read data transfer
> error\n"));
> + break;
> + case RX_DMA_DESCRIPTOR_WRITE_ACCESS_ERROR:
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Rx Dma descriptor write
> access error\n"));
> + break;
> + case RX_DMA_DESCRIPTOR_READ_ACCESS_ERROR:
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Rx Dma descriptor read
> access error\n"));
> + break;
> + case TX_DMA_DESCRIPTOR_WRITE_ACCESS_ERROR:
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Tx Dma descriptor write
> access error\n"));
> + break;
> + case TX_DMA_DESCRIPTOR_READ_ACCESS_ERROR:
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Tx Dma descriptor read
> access error\n"));
> + break;
> + default:
> + DEBUG ((EFI_D_INFO, "SNP:MAC: Undefined error\n"));
> + break;
> + }
> + }
> + }
> + MmioOr32 (MacBaseAddress +
> + DW_EMAC_DMAGRP_STATUS_OFST,
> + Mask);
> +}
> +
> +
> +VOID
> +EFIAPI
> +EmacGetStatistic (
> + OUT EFI_NETWORK_STATISTICS* Statistic,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + EFI_NETWORK_STATISTICS* Stats;
> +
> + DEBUG ((EFI_D_INFO, "SNP:MAC: %a ()\r\n", __FUNCTION__));
> +
> + // Allocate Resources
> + Stats = AllocateZeroPool (sizeof (EFI_NETWORK_STATISTICS));
> + if (Stats == NULL) {
> + return;
> + }
> +
> + Stats->RxTotalFrames = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_RXFRAMECOUNT_GB_OFST);
> + Stats->RxUndersizeFrames = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_RXUNDERSIZE_G_OFST);
> + Stats->RxOversizeFrames = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_RXOVERSIZE_G_OFST);
> + Stats->RxUnicastFrames = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_RXUNICASTFRAMES_G_OFST);
> + Stats->RxBroadcastFrames = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_RXBROADCASTFRAMES_G_OFST);
> + Stats->RxMulticastFrames = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_RXMULTICASTFRAMES_G_OFST);
> + Stats->RxCrcErrorFrames = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_RXCRCERROR_OFST);
> + Stats->RxTotalBytes = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_RXOCTETCOUNT_GB_OFST);
> + Stats->RxGoodFrames = Stats->RxUnicastFrames + Stats-
> >RxBroadcastFrames + Stats->RxMulticastFrames;
> +
> + Stats->TxTotalFrames = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_TXFRAMECOUNT_GB_OFST);
> + Stats->TxGoodFrames = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_TXFRAMECOUNT_G_OFST);
> + Stats->TxOversizeFrames = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_TXOVERSIZE_G_OFST);
> + Stats->TxUnicastFrames = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_TXUNICASTFRAMES_GB_OFST);
> + Stats->TxBroadcastFrames = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_TXBROADCASTFRAMES_G_OFST);
> + Stats->TxMulticastFrames = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_TXMULTICASTFRAMES_G_OFST);
> + Stats->TxTotalBytes = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_TXOCTETCOUNT_GB_OFST);
> + Stats->Collisions = MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_TXLATECOL_OFST) +
> + MmioRead32 (MacBaseAddress +
> DW_EMAC_GMACGRP_TXEXESSCOL_OFST);
> +
> + // Fill in the statistics
> + CopyMem(Statistic, Stats, sizeof(EFI_NETWORK_STATISTICS));
> +}
> +
> +
> +VOID
> +EFIAPI
> +EmacConfigAdjust (
> + IN UINT32 Speed,
> + IN UINT32 Duplex,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + UINT32 Config;
> +
> + Config =0;
> + if (Speed != SPEED_1000)
> + Config |= DW_EMAC_GMACGRP_MAC_CONFIGURATION_PS_SET_MSK;
> +
> + if (Speed == SPEED_100)
> + Config |= DW_EMAC_GMACGRP_MAC_CONFIGURATION_FES_SET_MSK;
> +
> + if (Duplex == DUPLEX_FULL)
> + Config |= DW_EMAC_GMACGRP_MAC_CONFIGURATION_DM_SET_MSK;
> +
> + MmioOr32 (MacBaseAddress +
> + DW_EMAC_GMACGRP_MAC_CONFIGURATION_OFST,
> + DW_EMAC_GMACGRP_MAC_CONFIGURATION_BE_SET_MSK |
> + DW_EMAC_GMACGRP_MAC_CONFIGURATION_DO_SET_MSK |
> + Config);
> +
> +}
> diff --git a/Silicon/DesignWare/Drivers/DwEmacSnpDxe/PhyDxeUtil.c
> b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/PhyDxeUtil.c
> new file mode 100755
> index 000000000000..65a53b651814
> --- /dev/null
> +++ b/Silicon/DesignWare/Drivers/DwEmacSnpDxe/PhyDxeUtil.c
> @@ -0,0 +1,621 @@
> +/** @file
> +
> + Copyright (c) 2011 - 2019, Intel Corporaton. 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.
> +
> + The original software modules are licensed as follows:
> +
> + Copyright (c) 2012 - 2014, ARM Limited. All rights reserved.
> + Copyright (c) 2004 - 2010, 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 3 Clause LICENSE ON AN
> "AS IS" BASIS,
> + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS
> OR IMPLIED.
> +**/
> +
> +
> +#include "PhyDxeUtil.h"
> +#include "EmacDxeUtil.h"
> +
> +EFI_STATUS
> +EFIAPI
> +PhyDxeInitialization (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + DEBUG ((EFI_D_INFO, "SNP:PHY: %a ()\r\n", __FUNCTION__));
> +
> + // initialize the phyaddr
> + PhyDriver->PhyAddr = 0;
> + PhyDriver->PhyCurrentLink = LINK_DOWN;
> + PhyDriver->PhyOldLink = LINK_DOWN;
> +
> + if (PhyDetectDevice (PhyDriver, MacBaseAddress) != EFI_SUCCESS) {
> + return EFI_NOT_FOUND;
> + }
> +
> + PhyConfig (PhyDriver, MacBaseAddress);
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +// PHY detect device
> +EFI_STATUS
> +EFIAPI
> +PhyDetectDevice (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + UINT32 PhyAddr;
> +
> + DEBUG ((EFI_D_INFO, "SNP:PHY: %a ()\r\n", __FUNCTION__));
> +
> + for (PhyAddr = 0; PhyAddr < 32; PhyAddr++) {
> + if (PhyReadId (PhyAddr, MacBaseAddress) == EFI_SUCCESS) {
> + PhyDriver->PhyAddr = PhyAddr;
> + return EFI_SUCCESS;
> + }
> + }
> + Print (L"SNP:PHY: Fail to detect Ethernet PHY!\r\n");
> + return EFI_NOT_FOUND;
> +}
> +
> +
> +EFI_STATUS
> +EFIAPI
> +PhyConfig (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + EFI_STATUS Status;
> +
> + DEBUG ((EFI_D_INFO, "SNP:PHY: %a ()\r\n", __FUNCTION__));
> +
> + Status = PhySoftReset (PhyDriver, MacBaseAddress);
> + if (EFI_ERROR (Status)) {
> + return EFI_DEVICE_ERROR;
> + }
> +
> + // Configure TX/RX Skew
> + PhyConfigSkew (PhyDriver, MacBaseAddress);
> +
> + // Read back and display Skew settings
> + PhyDisplayConfigSkew (PhyDriver, MacBaseAddress);
> +
> + // Configure AN FLP Burst Trasmit timing interval
> + PhyConfigFlpBurstTiming (PhyDriver, MacBaseAddress);
> + PhyDisplayFlpBurstTiming (PhyDriver, MacBaseAddress);
> +
> + // Configure AN and Advertise
> + PhyAutoNego (PhyDriver,MacBaseAddress);
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +// Perform PHY software reset
> +EFI_STATUS
> +EFIAPI
> +PhySoftReset (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + UINT32 TimeOut;
> + UINT32 Data32;
> + EFI_STATUS Status;
> +
> + DEBUG ((EFI_D_INFO, "SNP:PHY: %a ()\r\n", __FUNCTION__));
> +
> + // PHY Basic Control Register reset
> + PhyWrite (PhyDriver->PhyAddr, PHY_BASIC_CTRL, PHYCTRL_RESET,
> MacBaseAddress);
> +
> + // Wait for completion
> + TimeOut = 0;
> + do {
> + // Read PHY_BASIC_CTRL register from PHY
> + Status = PhyRead (PhyDriver->PhyAddr, PHY_BASIC_CTRL, &Data32,
> MacBaseAddress);
> + if (EFI_ERROR(Status)) {
> + return Status;
> + }
> + // Wait until PHYCTRL_RESET become zero
> + if ((Data32 & PHYCTRL_RESET) == 0) {
> + break;
> + }
> + MicroSecondDelay(1);
> + } while (TimeOut++ < PHY_TIMEOUT);
> + if (TimeOut >= PHY_TIMEOUT) {
> + DEBUG ((EFI_D_INFO, "SNP:PHY: ERROR! PhySoftReset timeout\n"));
> + return EFI_TIMEOUT;
> + }
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +// PHY read ID
> +EFI_STATUS
> +EFIAPI
> +PhyReadId (
> + IN UINT32 PhyAddr,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + EFI_STATUS Status;
> + UINT32 PhyId1;
> + UINT32 PhyId2;
> +
> + //DEBUG ((EFI_D_INFO, "SNP:PHY: %a (0x%02X)\r\n", __FUNCTION__,
> PhyAddr));
> +
> + Status = PhyRead (PhyAddr, PHY_ID1, &PhyId1, MacBaseAddress);
> + if (EFI_ERROR(Status)) return Status;
> + Status = PhyRead (PhyAddr, PHY_ID2, &PhyId2, MacBaseAddress);
> + if (EFI_ERROR(Status)) return Status;
> +
> + if (PhyId1 == PHY_INVALID_ID || PhyId2 == PHY_INVALID_ID) {
> + return EFI_NOT_FOUND;
> + }
> +
> + DEBUG ((EFI_D_INFO, "SNP:PHY: Ethernet PHY detected.
> PHY_ID1=0x%04X, PHY_ID2=0x%04X, PHY_ADDR=0x%02X\r\n", PhyId1, PhyId2,
> PhyAddr));
> + return EFI_SUCCESS;
> +}
> +
> +
> +VOID
> +EFIAPI
> +PhyConfigSkew (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + Phy9031ExtendedWrite(PhyDriver, PHY_KSZ9031_MOD_DATA_NO_POST_INC,
> PHY_KSZ9031RN_DEV_ADDR, PHY_KSZ9031RN_CONTROL_PAD_SKEW_REG,
> PHY_KSZ9031RN_CONTROL_PAD_SKEW_VALUE, MacBaseAddress);
> + Phy9031ExtendedWrite(PhyDriver, PHY_KSZ9031_MOD_DATA_NO_POST_INC,
> PHY_KSZ9031RN_DEV_ADDR,
> PHY_KSZ9031RN_CLK_PAD_SKEW_REG, PHY_KSZ9031RN_CLK_PAD_SKEW_VALUE,
> MacBaseAddress);
> + Phy9031ExtendedWrite(PhyDriver, PHY_KSZ9031_MOD_DATA_NO_POST_INC,
> PHY_KSZ9031RN_DEV_ADDR, PHY_KSZ9031RN_RX_DATA_PAD_SKEW_REG,
> PHY_KSZ9031RN_RX_DATA_PAD_SKEW_VALUE, MacBaseAddress);
> + Phy9031ExtendedWrite(PhyDriver, PHY_KSZ9031_MOD_DATA_NO_POST_INC,
> PHY_KSZ9031RN_DEV_ADDR, PHY_KSZ9031RN_TX_DATA_PAD_SKEW_REG,
> PHY_KSZ9031RN_TX_DATA_PAD_SKEW_VALUE, MacBaseAddress);
> +
> +}
> +
> +
> +VOID
> +EFIAPI
> +PhyDisplayConfigSkew (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + // Display skew configuration
> + DEBUG ((EFI_D_INFO, "SNP:PHY: Control Signal Pad Skew =
> 0x%04X\r\n", Phy9031ExtendedRead(PhyDriver,
> PHY_KSZ9031_MOD_DATA_NO_POST_INC, PHY_KSZ9031RN_DEV_ADDR,
> PHY_KSZ9031RN_CONTROL_PAD_SKEW_REG, MacBaseAddress)));
> + DEBUG ((EFI_D_INFO, "SNP:PHY: RGMII Clock Pad Skew =
> 0x%04X\r\n", Phy9031ExtendedRead(PhyDriver,
> PHY_KSZ9031_MOD_DATA_NO_POST_INC, PHY_KSZ9031RN_DEV_ADDR,
> PHY_KSZ9031RN_CLK_PAD_SKEW_REG, MacBaseAddress)));
> + DEBUG ((EFI_D_INFO, "SNP:PHY: RGMII RX Data Pad Skew =
> 0x%04X\r\n", Phy9031ExtendedRead(PhyDriver,
> PHY_KSZ9031_MOD_DATA_NO_POST_INC, PHY_KSZ9031RN_DEV_ADDR,
> PHY_KSZ9031RN_RX_DATA_PAD_SKEW_REG, MacBaseAddress)));
> + DEBUG ((EFI_D_INFO, "SNP:PHY: RGMII TX Data Pad Skew =
> 0x%04X\r\n", Phy9031ExtendedRead(PhyDriver,
> PHY_KSZ9031_MOD_DATA_NO_POST_INC, PHY_KSZ9031RN_DEV_ADDR,
> PHY_KSZ9031RN_TX_DATA_PAD_SKEW_REG, MacBaseAddress)));
> +}
> +
> +VOID
> +EFIAPI
> +PhyConfigFlpBurstTiming (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + Phy9031ExtendedWrite(PhyDriver, PHY_KSZ9031_MOD_DATA_NO_POST_INC,
> PHY_KSZ9031RN_MMD_DEV_ADDR_00, PHY_KSZ9031RN_MMD_D0_FLP_LO_REG,
> PHY_KSZ9031RN_MMD_D0_FLP_16MS_LO, MacBaseAddress);
> + Phy9031ExtendedWrite(PhyDriver, PHY_KSZ9031_MOD_DATA_NO_POST_INC,
> PHY_KSZ9031RN_MMD_DEV_ADDR_00, PHY_KSZ9031RN_MMD_D0_FLP_HI_REG,
> PHY_KSZ9031RN_MMD_D0_FLP_16MS_HI, MacBaseAddress);
> +}
> +
> +VOID
> +EFIAPI
> +PhyDisplayFlpBurstTiming (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + // Display Auto-Negotiation FLP burst transmit timing
> + DEBUG ((EFI_D_INFO, "SNP:PHY: AN FLP Burst Transmit - LO =
> 0x%04X\r\n", Phy9031ExtendedRead(PhyDriver,
> PHY_KSZ9031_MOD_DATA_NO_POST_INC, PHY_KSZ9031RN_MMD_DEV_ADDR_00,
> PHY_KSZ9031RN_MMD_D0_FLP_LO_REG, MacBaseAddress)));
> + DEBUG ((EFI_D_INFO, "SNP:PHY: AN FLP Burst Transmit - HI =
> 0x%04X\r\n", Phy9031ExtendedRead(PhyDriver,
> PHY_KSZ9031_MOD_DATA_NO_POST_INC, PHY_KSZ9031RN_MMD_DEV_ADDR_00,
> PHY_KSZ9031RN_MMD_D0_FLP_HI_REG, MacBaseAddress)));
> +}
> +
> +// Do auto-negotiation
> +EFI_STATUS
> +EFIAPI
> +PhyAutoNego (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + EFI_STATUS Status;
> + UINT32 PhyControl;
> + UINT32 PhyStatus;
> + UINT32 Features;
> +
> + DEBUG ((EFI_D_INFO, "SNP:PHY: %a ()\r\n", __FUNCTION__));
> +
> + // Read PHY Status
> + Status = PhyRead (PhyDriver->PhyAddr, PHY_BASIC_STATUS,
> &PhyStatus, MacBaseAddress);
> + if (EFI_ERROR(Status)) return Status;
> +
> + // Check PHY Status if auto-negotiation is supported
> + if ((PhyStatus & PHYSTS_AUTO_CAP) == 0) {
> + DEBUG ((EFI_D_INFO, "SNP:PHY: Auto-negotiation is not
> supported.\n"));
> + return EFI_DEVICE_ERROR;
> + }
> +
> + // Read PHY Auto-Nego Advertise capabilities register for 10/100
> Base-T
> + Status = PhyRead (PhyDriver->PhyAddr, PHY_AUTO_NEG_ADVERT,
> &Features, MacBaseAddress);
> + if (EFI_ERROR(Status)) return Status;
> +
> + // Set Advertise capabilities for 10Base-T/10Base-T full-
> duplex/100Base-T/100Base-T full-duplex
> + Features |= (PHYANA_10BASET | PHYANA_10BASETFD | PHYANA_100BASETX
> | PHYANA_100BASETXFD);
> + PhyWrite (PhyDriver->PhyAddr, PHY_AUTO_NEG_ADVERT, Features,
> MacBaseAddress);
> +
> + // Read PHY Auto-Nego Advertise capabilities register for 1000
> Base-T
> + Status = PhyRead (PhyDriver->PhyAddr, PHY_1000BASE_T_CONTROL,
> &Features, MacBaseAddress);
> + if (EFI_ERROR(Status)) return Status;
> +
> + // Set Advertise capabilities for 1000 Base-T/1000 Base-T full-
> duplex
> + Features |= (PHYADVERTISE_1000FULL | PHYADVERTISE_1000HALF);
> + PhyWrite (PhyDriver->PhyAddr, PHY_1000BASE_T_CONTROL, Features,
> MacBaseAddress);
> +
> + // Read control register
> + Status = PhyRead (PhyDriver->PhyAddr, PHY_BASIC_CTRL, &PhyControl,
> MacBaseAddress);
> + if (EFI_ERROR(Status)) return Status;
> +
> + // Enable Auto-Negotiation
> + PhyControl |= PHYCTRL_AUTO_EN;
> + // Restart auto-negotiation
> + PhyControl |= PHYCTRL_RST_AUTO;
> + // Write this configuration
> + PhyWrite (PhyDriver->PhyAddr, PHY_BASIC_CTRL, PhyControl,
> MacBaseAddress);
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +EFI_STATUS
> +EFIAPI
> +PhyLinkAdjustEmacConfig (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + UINT32 Speed;
> + UINT32 Duplex;
> + EFI_STATUS Status;
> +
> + //DEBUG ((EFI_D_INFO, "SNP:PHY: %a ()\r\n", __FUNCTION__));
> +
> + Status = EFI_SUCCESS;
> + Speed = SPEED_10;
> + Duplex = DUPLEX_HALF;
> +
> + if (PhyCheckLinkStatus (PhyDriver, MacBaseAddress) == EFI_SUCCESS)
> {
> + PhyDriver->PhyCurrentLink = LINK_UP;
> + } else {
> + PhyDriver->PhyCurrentLink = LINK_DOWN;
> + }
> +
> + if (PhyDriver->PhyOldLink != PhyDriver->PhyCurrentLink) {
> + if (PhyDriver->PhyCurrentLink == LINK_UP) {
> + Print (L"SNP:PHY: Link is up - Network Cable is Plugged\r\n");
> + PhyReadCapability (PhyDriver, &Speed, &Duplex,
> MacBaseAddress);
> + EmacConfigAdjust (Speed, Duplex, MacBaseAddress);
> + Status = EFI_SUCCESS;
> + } else {
> + Print (L"SNP:PHY: Link is Down - Network Cable is
> Unplugged?\r\n");
> + Status = EFI_NOT_READY;
> + }
> + } else if (PhyDriver->PhyCurrentLink == LINK_DOWN) {
> + Status = EFI_NOT_READY;
> + }
> +
> + PhyDriver->PhyOldLink = PhyDriver->PhyCurrentLink;
> +
> + return Status;
> +}
> +
> +
> +EFI_STATUS
> +EFIAPI
> +PhyCheckLinkStatus (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + EFI_STATUS Status;
> + UINT32 Data32;
> + UINTN TimeOut;
> + UINT32 PhyBasicStatus;
> +
> + //DEBUG ((EFI_D_INFO, "SNP:PHY: %a ()\r\n", __FUNCTION__));
> +
> + // Get the PHY Status
> + Status = PhyRead (PhyDriver->PhyAddr, PHY_BASIC_STATUS,
> &PhyBasicStatus, MacBaseAddress);
> + if (EFI_ERROR(Status)) return Status;
> +
> + // if Link is already up then dont need to proceed anymore
> + if (PhyBasicStatus & PHYSTS_LINK_STS) {
> + return EFI_SUCCESS;
> + }
> +
> + // Wait until it is up or until Time Out
> + TimeOut = 0;
> + do {
> + // Read PHY_BASIC_STATUS register from PHY
> + Status = PhyRead (PhyDriver->PhyAddr, PHY_BASIC_STATUS, &Data32,
> MacBaseAddress);
> + if (EFI_ERROR(Status)) {
> + return Status;
> + }
> + // Wait until PHYSTS_LINK_STS become one
> + if (Data32 & PHYSTS_LINK_STS) {
> + // Link is up
> + break;
> + }
> + MicroSecondDelay(1);
> + } while (TimeOut++ < PHY_TIMEOUT);
> + if (TimeOut >= PHY_TIMEOUT) {
> + // Link is down
> + return EFI_TIMEOUT;
> + }
> +
> + // Wait until autonego process has completed
> + TimeOut = 0;
> + do {
> + // Read PHY_BASIC_STATUS register from PHY
> + Status = PhyRead (PhyDriver->PhyAddr, PHY_BASIC_STATUS, &Data32,
> MacBaseAddress);
> + if (EFI_ERROR(Status)) {
> + return Status;
> + }
> + // Wait until PHYSTS_AUTO_COMP become one
> + if (Data32 & PHYSTS_AUTO_COMP) {
> + DEBUG ((EFI_D_INFO, "SNP:PHY: Auto Negotiation
> completed\r\n"));
> + break;
> + }
> + MicroSecondDelay(1);
> + } while (TimeOut++ < PHY_TIMEOUT);
> + if (TimeOut >= PHY_TIMEOUT) {
> + DEBUG ((EFI_D_INFO, "SNP:PHY: Error! Auto Negotiation
> timeout\n"));
> + return EFI_TIMEOUT;
> + }
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +EFI_STATUS
> +EFIAPI
> +PhyReadCapability (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32* Speed,
> + IN UINT32* Duplex,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + EFI_STATUS Status;
> + UINT32 PartnerAbilityGb;
> + UINT32 AdvertisingGb;
> + UINT32 CommonAbilityGb;
> + UINT32 PartnerAbility;
> + UINT32 Advertising;
> + UINT32 CommonAbility;
> +
> + //DEBUG ((EFI_D_INFO, "SNP:PHY: %a ()\r\n", __FUNCTION__));
> +
> + // For 1000 Base-T
> +
> + Status = PhyRead (PhyDriver->PhyAddr, PHY_1000BASE_T_STATUS,
> &PartnerAbilityGb, MacBaseAddress);
> + if (EFI_ERROR(Status)) return Status;
> +
> + Status = PhyRead (PhyDriver->PhyAddr, PHY_1000BASE_T_CONTROL,
> &AdvertisingGb, MacBaseAddress);
> + if (EFI_ERROR(Status)) return Status;
> +
> + CommonAbilityGb = PartnerAbilityGb & (AdvertisingGb << 2);
> +
> + // For 10/100 Base-T
> +
> + Status = PhyRead (PhyDriver->PhyAddr, PHY_AUTO_NEG_LINK_ABILITY,
> &PartnerAbility, MacBaseAddress);
> + if (EFI_ERROR(Status)) return Status;
> +
> + Status = PhyRead (PhyDriver->PhyAddr, PHY_AUTO_NEG_EXP,
> &Advertising, MacBaseAddress);
> + if (EFI_ERROR(Status)) return Status;
> +
> + CommonAbility = PartnerAbility & Advertising;
> +
> + // Determine the Speed and Duplex
> + if (PartnerAbilityGb & (PHYLPA_1000FULL | PHYLPA_1000HALF)) {
> + *Speed = SPEED_1000;
> + if (CommonAbilityGb & PHYLPA_1000FULL) {
> + *Duplex = DUPLEX_FULL;
> + }
> + } else if (CommonAbility & (PHYLPA_100FULL | PHYLPA_100HALF)) {
> + *Speed = SPEED_100;
> + if (CommonAbility & PHYLPA_100FULL) {
> + *Duplex = DUPLEX_FULL;
> + } else if (CommonAbility & PHYLPA_10FULL) {
> + *Duplex = DUPLEX_FULL;
> + }
> + }
> +
> + PhyDisplayAbility (*Speed, *Duplex);
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +VOID
> +EFIAPI
> +PhyDisplayAbility (
> + IN UINT32 Speed,
> + IN UINT32 Duplex
> + )
> +{
> + //DEBUG ((EFI_D_INFO, "SNP:PHY: %a ()\r\n", __FUNCTION__));
> +
> + Print (L"SNP:PHY: ");
> + switch (Speed) {
> + case SPEED_1000:
> + Print (L"1 Gbps - ");
> + break;
> + case SPEED_100:
> + Print (L"100 Mbps - ");
> + break;
> + case SPEED_10:
> + Print (L"10 Mbps - ");
> + break;
> + default:
> + Print (L"Invalid link speed");
> + break;
> + }
> +
> + switch (Duplex) {
> + case DUPLEX_FULL:
> + Print (L"Full Duplex\n");
> + break;
> + case DUPLEX_HALF:
> + Print (L"Half Duplex\n");
> + break;
> + default:
> + Print (L"Invalid duplex mode\n");
> + break;
> + }
> +}
> +
> +
> +// Function to read from MII register (PHY Access)
> +EFI_STATUS
> +EFIAPI
> +PhyRead (
> + IN UINT32 Addr,
> + IN UINT32 Reg,
> + OUT UINT32 *Data,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + UINT32 MiiConfig;
> + UINT32 Count;
> +
> + //DEBUG ((EFI_D_INFO, "SNP:PHY: %a ()\r\n", __FUNCTION__));
> +
> + // Check it is a valid Reg
> + ASSERT(Reg < 31);
> +
> + MiiConfig = ((Addr << MIIADDRSHIFT) & MII_ADDRMSK) |
> + ((Reg << MIIREGSHIFT) & MII_REGMSK)|
> + MII_CLKRANGE_150_250M |
> + MII_BUSY;
> +
> + // write this config to register
> + MmioWrite32(MacBaseAddress + DW_EMAC_GMACGRP_GMII_ADDRESS_OFST,
> MiiConfig);
> +
> + // Wait for busy bit to clear
> + Count = 0;
> + while (Count < 10000) {
> + if
> (!(DW_EMAC_GMACGRP_GMII_ADDRESS_GB_GET(MmioRead32(MacBaseAddress +
> DW_EMAC_GMACGRP_GMII_ADDRESS_OFST))))
> + {
> + *Data =
> DW_EMAC_GMACGRP_GMII_DATA_GD_GET(MmioRead32(MacBaseAddress +
> DW_EMAC_GMACGRP_GMII_DATA_OFST));
> + return EFI_SUCCESS;
> + }
> + Count++;
> + };
> + DEBUG ((EFI_D_INFO, "SNP:PHY: MDIO busy bit timeout\r\n"));
> + return EFI_TIMEOUT;
> +}
> +
> +
> +// Function to write to the MII register (PHY Access)
> +EFI_STATUS
> +EFIAPI
> +PhyWrite (
> + IN UINT32 Addr,
> + IN UINT32 Reg,
> + IN UINT32 Data,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + UINT32 MiiConfig;
> + UINT32 Count;
> +
> + //DEBUG ((EFI_D_INFO, "SNP:PHY: %a ()\r\n", __FUNCTION__));
> +
> + // Check it is a valid Reg
> + ASSERT(Reg < 31);
> +
> + MiiConfig = ((Addr << MIIADDRSHIFT) & MII_ADDRMSK) |
> + ((Reg << MIIREGSHIFT) & MII_REGMSK)|
> + MII_WRITE |
> + MII_CLKRANGE_150_250M |
> + MII_BUSY;
> + // Write the desired value to the register first
> + MmioWrite32 (MacBaseAddress + DW_EMAC_GMACGRP_GMII_DATA_OFST,
> (Data & 0xFFFF));
> +
> + // write this config to register
> + MmioWrite32(MacBaseAddress + DW_EMAC_GMACGRP_GMII_ADDRESS_OFST,
> MiiConfig);
> +
> + // Wait for busy bit to clear
> + Count = 0;
> + while (Count < 1000) {
> + if
> (!(DW_EMAC_GMACGRP_GMII_ADDRESS_GB_GET(MmioRead32(MacBaseAddress +
> DW_EMAC_GMACGRP_GMII_ADDRESS_OFST))))
> + return EFI_SUCCESS;
> + Count++;
> + };
> +
> + return EFI_TIMEOUT;
> +}
> +
> +
> +EFI_STATUS
> +EFIAPI
> +Phy9031ExtendedWrite (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 Mode,
> + IN UINT32 DevAddr,
> + IN UINT32 Regnum,
> + IN UINT16 Val,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + //DEBUG ((EFI_D_INFO, "SNP:PHY: %a ()\r\n", __FUNCTION__));
> +
> + PhyWrite(PhyDriver->PhyAddr, PHY_KSZ9031RN_MMD_CTRL_REG, DevAddr,
> MacBaseAddress);
> + PhyWrite(PhyDriver->PhyAddr, PHY_KSZ9031RN_MMD_REGDATA_REG,
> Regnum, MacBaseAddress);
> + PhyWrite(PhyDriver->PhyAddr, PHY_KSZ9031RN_MMD_CTRL_REG, (Mode <<
> 14) | DevAddr, MacBaseAddress);
> + return PhyWrite(PhyDriver->PhyAddr, PHY_KSZ9031RN_MMD_REGDATA_REG,
> Val, MacBaseAddress);
> +}
> +
> +
> +UINT32
> +EFIAPI
> +Phy9031ExtendedRead (
> + IN PHY_DRIVER* PhyDriver,
> + IN UINT32 Mode,
> + IN UINT32 DevAddr,
> + IN UINT32 Regnum,
> + IN UINT32 MacBaseAddress
> + )
> +{
> + EFI_STATUS Status;
> + UINT32 Data32;
> +
> + //DEBUG ((EFI_D_INFO, "SNP:PHY: %a ()\r\n", __FUNCTION__));
> +
> + PhyWrite(PhyDriver->PhyAddr, PHY_KSZ9031RN_MMD_CTRL_REG, DevAddr,
> MacBaseAddress);
> + PhyWrite(PhyDriver->PhyAddr, PHY_KSZ9031RN_MMD_REGDATA_REG,
> Regnum, MacBaseAddress);
> + PhyWrite(PhyDriver->PhyAddr, PHY_KSZ9031RN_MMD_CTRL_REG, (Mode <<
> 14) | DevAddr, MacBaseAddress);
> +
> + Status = PhyRead (PhyDriver->PhyAddr,
> PHY_KSZ9031RN_MMD_REGDATA_REG, &Data32, MacBaseAddress);
> + if (EFI_ERROR(Status)) return 0;
> +
> + return Data32;
> +}
> +
> +
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