Reviewed-by: Michael Kubacki <michael.a.kuba...@intel.com>
> -----Original Message-----
> From: Wei, David Y
> Sent: Friday, August 30, 2019 2:19 PM
> To: devel@edk2.groups.io
> Cc: Wu, Hao A <hao.a...@intel.com>; Gao, Liming <liming....@intel.com>;
> Sinha, Ankit <ankit.si...@intel.com>; Agyeman, Prince
> <prince.agye...@intel.com>; Kubacki, Michael A
> <michael.a.kuba...@intel.com>; Desimone, Nathaniel L
> <nathaniel.l.desim...@intel.com>; Kinney, Michael D
> <michael.d.kin...@intel.com>
> Subject: [edk2-platforms PATCH v4 4/7] SimicsOpenBoardPkg: Add DXE driver
> for Legacy Sio
>
> Add DXE driver for Legacy Sio support
>
> Cc: Hao Wu <hao.a...@intel.com>
> Cc: Liming Gao <liming....@intel.com>
> Cc: Ankit Sinha <ankit.si...@intel.com>
> Cc: Agyeman Prince <prince.agye...@intel.com>
> Cc: Kubacki Michael A <michael.a.kuba...@intel.com>
> Cc: Nate DeSimone <nathaniel.l.desim...@intel.com>
> Cc: Michael D Kinney <michael.d.kin...@intel.com>
>
> Signed-off-by: David Wei <david.y....@intel.com>
> ---
> .../LegacySioDxe/ComponentName.c | 173 ++++++
> .../SimicsOpenBoardPkg/LegacySioDxe/SioChip.c | 272 ++++++++++
> .../SimicsOpenBoardPkg/LegacySioDxe/SioDriver.c | 600
> +++++++++++++++++++++
> .../SimicsOpenBoardPkg/LegacySioDxe/SioService.c | 249 +++++++++
> .../LegacySioDxe/ComponentName.h | 87 +++
> .../LegacySioDxe/LegacySioDxe.inf | 54 ++
> .../SimicsOpenBoardPkg/LegacySioDxe/Register.h | 15 +
> .../SimicsOpenBoardPkg/LegacySioDxe/SioChip.h | 195 +++++++
> .../SimicsOpenBoardPkg/LegacySioDxe/SioDriver.h | 134 +++++
> .../SimicsOpenBoardPkg/LegacySioDxe/SioService.h | 143 +++++
> 10 files changed, 1922 insertions(+)
> create mode 100644
> Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/ComponentName.c
> create mode 100644
> Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioChip.c
> create mode 100644
> Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioDriver.c
> create mode 100644
> Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioService.c
> create mode 100644
> Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/ComponentName.h
> create mode 100644
> Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/LegacySioDxe.inf
> create mode 100644
> Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/Register.h
> create mode 100644
> Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioChip.h
> create mode 100644
> Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioDriver.h
> create mode 100644
> Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioService.h
>
> diff --git
> a/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/ComponentName.c
> b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/ComponentName.c
> new file mode 100644
> index 0000000000..4ba02f92c0
> --- /dev/null
> +++ b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/ComponentName.c
> @@ -0,0 +1,173 @@
> +/** @file
> + Install Base and Size Info Ppi for Firmware Volume Recovery.
> +
> + Copyright (c) 2013 - 2019 Intel Corporation. All rights reserved. <BR>
> +
> + SPDX-License-Identifier: BSD-2-Clause-Patent
> +**/
> +
> +#include "SioDriver.h"
> +
> +///
> +/// Component Name Protocol instance
> +///
> +GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL
> mSioComponentName = {
> + SioComponentNameGetDriverName,
> + SioComponentNameGetControllerName,
> + "eng"
> +};
> +
> +///
> +/// Component Name 2 Protocol instance
> +///
> +GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL
> mSioComponentName2 = {
> + (EFI_COMPONENT_NAME2_GET_DRIVER_NAME)
> SioComponentNameGetDriverName,
> +
> (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME)SioComponentNameGet
> ControllerName,
> + "en"
> +};
> +
> +///
> +/// Table of driver names
> +///
> +GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
> mSioDriverNameTable[] = {
> + {
> + "eng;en",
> + L"Super I/O Driver"
> + },
> + {
> + NULL,
> + NULL
> + }
> +};
> +
> +///
> +/// Table of Controller names
> +///
> +GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
> mSioControllerNameTable[] = {
> + {
> + "eng;en",
> + L"Super I/O Controller"
> + },
> + {
> + NULL,
> + NULL
> + }
> +};
> +
> +/**
> + Retrieves a Unicode string that is the user-readable name of the EFI
> Driver.
> +
> + @param This A pointer to the EFI_COMPONENT_NAME_PROTOCOL
> instance.
> + @param Language A pointer to a three-character ISO 639-2 language
> identifier.
> + This is the language of the driver name that 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.
> + @param DriverName 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
> +SioComponentNameGetDriverName (
> + IN EFI_COMPONENT_NAME_PROTOCOL *This,
> + IN CHAR8 *Language,
> + OUT CHAR16 **DriverName
> + )
> +{
> + return LookupUnicodeString2 (
> + Language,
> + This->SupportedLanguages,
> + mSioDriverNameTable,
> + DriverName,
> + (BOOLEAN)(This == &mSioComponentName)
> + );
> +}
> +
> +/**
> + Retrieves a Unicode string that is the user readable name of the controller
> + that is being managed by an EFI Driver.
> +
> + @param This A pointer to the EFI_COMPONENT_NAME_PROTOCOL
> instance.
> + @param ControllerHandle 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 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 A pointer to a three character ISO 639-2 language
> + identifier. This is the language of the
> controller 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.
> + @param ControllerName 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 NULL.
> + @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
> +SioComponentNameGetControllerName (
> + IN EFI_COMPONENT_NAME_PROTOCOL *This,
> + IN EFI_HANDLE ControllerHandle,
> + IN EFI_HANDLE ChildHandle OPTIONAL,
> + IN CHAR8 *Language,
> + OUT CHAR16 **ControllerName
> + )
> +{
> + EFI_STATUS Status;
> +
> + //
> + // Make sure this driver is currently managing ControllHandle
> + //
> + Status = EfiTestManagedDevice (
> + ControllerHandle,
> + mSioDriver.DriverBindingHandle,
> + &gEfiPciIoProtocolGuid
> + );
> + if (EFI_ERROR (Status)) {
> + return Status;
> + }
> + //
> + // ChildHandle must be NULL for a Device Driver
> + //
> + if (ChildHandle != NULL) {
> + return EFI_UNSUPPORTED;
> + }
> +
> + return LookupUnicodeString2 (
> + Language,
> + This->SupportedLanguages,
> + mSioControllerNameTable,
> + ControllerName,
> + (BOOLEAN)(This == &mSioComponentName)
> + );
> +}
> diff --git a/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioChip.c
> b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioChip.c
> new file mode 100644
> index 0000000000..b9a7b9cd24
> --- /dev/null
> +++ b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioChip.c
> @@ -0,0 +1,272 @@
> +/** @file
> + Super I/O specific implementation.
> +
> + Copyright (c) 2010 - 2019 Intel Corporation. All rights reserved. <BR>
> +
> + SPDX-License-Identifier: BSD-2-Clause-Patent
> +**/
> +
> +#include "SioDriver.h"
> +#include <Library/S3IoLib.h>
> +
> +LOCAL_IO_WRITE8 mIoWrite8 = IoWrite8;
> +//
> +// System configuration (setup) information
> +//
> +// SYSTEM_CONFIGURATION mSystemConfiguration;
> +
> +//
> +// COM 1 UART Controller
> +//
> +ACPI_SIO_RESOURCES_IO_IRQ mCom1Resources = {
> + {
> + { ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR },
> + 0x3f8,
> + 8
> + },
> + {
> + { ACPI_IRQ_NOFLAG_DESCRIPTOR },
> + BIT4 // IRQ4
> + },
> + {
> + ACPI_END_TAG_DESCRIPTOR,
> + 0
> + }
> +};
> +
> +//
> +// PS/2 Keyboard Controller
> +//
> +ACPI_SIO_RESOURCES_IO_IRQ mKeyboardResources = {
> + {
> + { ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR },
> + 0x60,
> + 5
> + },
> + {
> + { ACPI_IRQ_NOFLAG_DESCRIPTOR },
> + BIT1
> + },
> + {
> + ACPI_END_TAG_DESCRIPTOR,
> + 0
> + }
> +};
> +
> +//
> +// PS/2 Mouse Controller
> +//
> +ACPI_SIO_RESOURCES_IO_IRQ mMouseResources = {
> + {
> + { ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR },
> + 0x60,
> + 5
> + },
> + {
> + { ACPI_IRQ_NOFLAG_DESCRIPTOR },
> + BIT12
> + },
> + {
> + ACPI_END_TAG_DESCRIPTOR,
> + 0
> + }
> +};
> +
> +//
> +// Table of SIO Controllers
> +//
> +DEVICE_INFO mDeviceInfo[] = {
> + {
> + {
> + EISA_PNP_ID(0x501),
> + 0
> + },
> + 0,
> + RESOURCE_IO | RESOURCE_IRQ,
> + { (ACPI_SMALL_RESOURCE_HEADER *) &mCom1Resources },
> + { (ACPI_SMALL_RESOURCE_HEADER *) &mCom1Resources }
> + }, // COM 1 UART Controller
> + {
> + {
> + EISA_PNP_ID(0x303),
> + 0
> + },
> + 0,
> + 0, // Cannot change resource
> + { (ACPI_SMALL_RESOURCE_HEADER *) &mKeyboardResources },
> + { (ACPI_SMALL_RESOURCE_HEADER *) &mKeyboardResources }
> + }, // PS/2 Keyboard Controller
> + {
> + {
> + EISA_PNP_ID(0xF03),
> + 0
> + },
> + 0,
> + 0, // Cannot change resource
> + { (ACPI_SMALL_RESOURCE_HEADER *) &mMouseResources },
> + { (ACPI_SMALL_RESOURCE_HEADER *) &mMouseResources }
> + } // PS/2 Mouse Controller
> +};
> +
> +
> +/**
> + Return the supported devices.
> +
> + @param[out] Devices Pointer to pointer of EFI_SIO_ACPI_DEVICE_ID.
> + Caller is responsible to free the buffer.
> + @param[out] Count Pointer to UINTN holding the device count.
> +**/
> +VOID
> +DeviceGetList (
> + OUT EFI_SIO_ACPI_DEVICE_ID **Devices,
> + OUT UINTN *Count
> + )
> +{
> + EFI_SIO_ACPI_DEVICE_ID *LocalDevices;
> + UINTN LocalCount;
> + UINTN DeviceCount;
> + UINTN Index;
> +
> + //
> + // Allocate enough memory for simplicity
> + //
> + DeviceCount = sizeof (mDeviceInfo) / sizeof (mDeviceInfo[0]);
> + LocalDevices = AllocatePool (sizeof (EFI_SIO_ACPI_DEVICE_ID) *
> DeviceCount);
> + ASSERT (LocalDevices != NULL);
> + if (LocalDevices == NULL) {
> + return;
> + }
> + LocalCount = 0;
> +
> + for (Index = 0; Index < DeviceCount; Index++) {
> + CopyMem (&LocalDevices[LocalCount], &mDeviceInfo[Index].Device, sizeof
> (EFI_SIO_ACPI_DEVICE_ID));
> + LocalCount++;
> + }
> +
> + *Devices = LocalDevices;
> + *Count = LocalCount;
> +}
> +
> +
> +/**
> + Super I/O controller initialization.
> +
> + @retval EFI_SUCCESS The super I/O controller is found and
> initialized.
> + @retval EFI_UNSUPPORTED The super I/O controller is not found.
> +**/
> +EFI_STATUS
> +SioInit (
> + VOID
> + )
> +{
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Find the DEVICE_INFO for specified Device.
> +
> + @param[in] Device Pointer to the EFI_SIO_ACPI_DEVICE_ID.
> +
> + @retval DEVICE_INFO* Pointer to the DEVICE_INFO.
> +**/
> +DEVICE_INFO *
> +DeviceSearch (
> + IN EFI_SIO_ACPI_DEVICE_ID *Device
> + )
> +{
> + UINTN Index;
> +
> + for (Index = 0; Index < sizeof (mDeviceInfo) / sizeof (mDeviceInfo[0]);
> Index++)
> {
> + if (CompareMem (Device, &mDeviceInfo[Index].Device, sizeof (*Device)) ==
> 0) {
> + return &mDeviceInfo[Index];
> + }
> + }
> +
> + ASSERT (FALSE);
> + return NULL;
> +}
> +
> +
> +/**
> + Program the SIO chip to enable the specified device using the default
> resource.
> +
> + @param[in] Device Pointer to EFI_SIO_ACPI_DEVICE_ID.
> +**/
> +VOID
> +DeviceEnable (
> + IN EFI_SIO_ACPI_DEVICE_ID *Device
> + )
> +{
> +}
> +
> +
> +/**
> + Get the ACPI resources for specified device.
> +
> + @param[in] Device Pointer to EFI_SIO_ACPI_DEVICE_ID.
> + @param[out] Resources Pointer to ACPI_RESOURCE_HEADER_PTR.
> +
> + @retval EFI_SUCCESS The resources are returned successfully.
> +**/
> +EFI_STATUS
> +DeviceGetResources (
> + IN EFI_SIO_ACPI_DEVICE_ID *Device,
> + OUT ACPI_RESOURCE_HEADER_PTR *Resources
> + )
> +{
> + DEVICE_INFO *DeviceInfo;
> +
> + DeviceInfo = DeviceSearch (Device);
> +
> + *Resources = DeviceInfo->Resources;
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Set the ACPI resources for specified device.
> +
> + The SIO chip is programmed to use the new resources and the
> + resources setting are saved. The function assumes the resources
> + are valid.
> +
> + @param[in] Device Pointer to EFI_SIO_ACPI_DEVICE_ID.
> + @param[in] Resources ACPI_RESOURCE_HEADER_PTR.
> +
> + @retval EFI_UNSUPPORTED
> +**/
> +EFI_STATUS
> +DeviceSetResources (
> + IN EFI_SIO_ACPI_DEVICE_ID *Device,
> + IN ACPI_RESOURCE_HEADER_PTR Resources
> + )
> +{
> + return EFI_UNSUPPORTED;
> +}
> +
> +
> +/**
> + Get the possible ACPI resources for specified device.
> +
> + @param[in] Device Pointer to EFI_SIO_ACPI_DEVICE_ID.
> + @param[out] Resources Pointer to ACPI_RESOURCE_HEADER_PTR.
> +
> + @retval EFI_SUCCESS The resources are returned successfully.
> +**/
> +EFI_STATUS
> +DevicePossibleResources (
> + IN EFI_SIO_ACPI_DEVICE_ID *Device,
> + OUT ACPI_RESOURCE_HEADER_PTR *Resources
> + )
> +{
> + DEVICE_INFO *DeviceInfo;
> +
> + DeviceInfo = DeviceSearch (Device);
> +
> + *Resources = DeviceInfo->PossibleResources;
> +
> + return EFI_SUCCESS;
> +}
> diff --git a/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioDriver.c
> b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioDriver.c
> new file mode 100644
> index 0000000000..408c6ff301
> --- /dev/null
> +++ b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioDriver.c
> @@ -0,0 +1,600 @@
> +/** @file
> + EFI Driver following Driver Binding Protocol.
> +
> + Copyright (c) 2010 - 2019 Intel Corporation. All rights reserved. <BR>
> +
> + SPDX-License-Identifier: BSD-2-Clause-Patent
> +**/
> +
> +#include "SioDriver.h"
> +
> +
> +//
> +// This driver is for ACPI(PNP0A03,0)/PCI(0x1f,0)
> +//
> +//
> +// Sio Driver Global Variables
> +//
> +EFI_DRIVER_BINDING_PROTOCOL mSioDriver = {
> + SioDriverSupported,
> + SioDriverStart,
> + SioDriverStop,
> + 1,
> + NULL,
> + NULL
> +};
> +
> +//
> +// The list of the created SIO_DEV
> +//
> +LIST_ENTRY mSioDevPool = INITIALIZE_LIST_HEAD_VARIABLE
> (mSioDevPool);
> +
> +//
> +// Template structure to create SIO_DEV
> +//
> +SIO_DEV mSioDevTemplate = {
> + SIO_DEV_SIGNATURE, // Signature
> + NULL, // PciHandle
> + {
> + 0x00000000, // HID
> + 0x00000000 // UID
> + },
> + NULL, // Handle
> + { // Sio Instance
> + SioRegisterAccess,
> + SioGetResources,
> + SioSetResources,
> + SioPossibleResources,
> + SioModify
> + },
> + NULL, // DevicePath
> + {
> + NULL, // ForwardLink
> + NULL, // BackLink
> + }
> +};
> +
> +//
> +// Template ACPI_HID_DEVICE_PATH structure to create device path
> +//
> +ACPI_HID_DEVICE_PATH mAcpiNodeTemplate = {
> + {
> + ACPI_DEVICE_PATH, // Type
> + ACPI_DP, // SubType
> + {
> + sizeof (ACPI_HID_DEVICE_PATH), // Length[0]
> + 0 // Length[1]
> + }
> + },
> + 0x00000000, // HID
> + 0x00000000 // UID
> +};
> +
> +
> +/**
> + The user Entry Point for module Lpc47m17x. The user code starts with this
> function.
> +
> + @param[in] ImageHandle The firmware allocated handle for the EFI image.
> + @param[in] SystemTable A pointer to the EFI System Table.
> +
> + @retval EFI_SUCCESS The entry point is executed successfully.
> + @retval other Some error occurs when executing this entry
> point.
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioDriverEntryPoint (
> + IN EFI_HANDLE ImageHandle,
> + IN EFI_SYSTEM_TABLE *SystemTable
> + )
> +{
> + if (EFI_ERROR (SioInit())) {
> + return EFI_UNSUPPORTED;
> + } else {
> +
> + //
> + // Install protocols
> + //
> + return EfiLibInstallDriverBindingComponentName2 (
> + ImageHandle,
> + SystemTable,
> + &mSioDriver,
> + ImageHandle,
> + &mSioComponentName,
> + &mSioComponentName2
> + );
> + }
> +}
> +
> +
> +/**
> + Test to see if this driver supports Controller Handle.
> +
> + @param[in] This Protocol instance pointer.
> + @param[in] Controller Handle of device to test
> + @param[in] RemainingDevicePath Optional parameter use to pick a specific
> child
> + device to start.
> +
> + @retval EFI_SUCCESS This driver supports this device
> + @retval EFI_ALREADY_STARTED This driver is already running on this
> device
> + @retval other This driver does not support this device
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioDriverSupported (
> + IN EFI_DRIVER_BINDING_PROTOCOL *This,
> + IN EFI_HANDLE Controller,
> + IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
> + )
> +{
> + EFI_STATUS Status;
> + EFI_PCI_IO_PROTOCOL *PciIo;
> + EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
> + ACPI_HID_DEVICE_PATH *AcpiNode;
> + PCI_TYPE00 Pci;
> + UINTN Index;
> + EFI_SIO_ACPI_DEVICE_ID *Devices;
> + UINTN Count;
> + UINTN SegmentNumber;
> + UINTN BusNumber;
> + UINTN DeviceNumber;
> + UINTN FunctionNumber;
> +
> + //
> + // If RemainingDevicePath is not NULL, it should verify that the first
> device
> + // path node in RemainingDevicePath is an ACPI Device path node which is a
> + // legal Device Path Node for this bus driver's children.
> + //
> + if (RemainingDevicePath != NULL) {
> + if (!IsDevicePathEnd (RemainingDevicePath)) {
> + if ((RemainingDevicePath->Type != ACPI_DEVICE_PATH) ||
> + (((RemainingDevicePath->SubType != ACPI_DP) ||
> (DevicePathNodeLength (RemainingDevicePath) != sizeof
> (ACPI_HID_DEVICE_PATH))) &&
> + ((RemainingDevicePath->SubType != ACPI_EXTENDED_DP) ||
> (DevicePathNodeLength (RemainingDevicePath) != sizeof
> (ACPI_EXTENDED_HID_DEVICE_PATH))))
> + ) {
> + return EFI_UNSUPPORTED;
> + }
> +
> + DeviceGetList (&Devices, &Count);
> + if (Devices == NULL) {
> + return EFI_OUT_OF_RESOURCES;
> + }
> + AcpiNode = (ACPI_HID_DEVICE_PATH *) RemainingDevicePath;
> + for (Index = 0; Index < Count; Index++) {
> + if ((AcpiNode->HID == Devices[Index].HID) &&
> + (AcpiNode->UID == Devices[Index].UID)) {
> + break;
> + }
> + }
> + FreePool (Devices);
> + if (Index == Count) {
> + return EFI_UNSUPPORTED;
> + }
> + }
> + }
> +
> + //
> + // See if the parent device path can be opened BY_DRIVER
> + //
> + Status = gBS->OpenProtocol (
> + Controller,
> + &gEfiDevicePathProtocolGuid,
> + (VOID **) &ParentDevicePath,
> + This->DriverBindingHandle,
> + Controller,
> + EFI_OPEN_PROTOCOL_BY_DRIVER
> + );
> + if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {
> + return Status;
> + }
> +
> + gBS->CloseProtocol (
> + Controller,
> + &gEfiDevicePathProtocolGuid,
> + This->DriverBindingHandle,
> + Controller
> + );
> +
> + //
> + // Get PciIo protocol instance
> + //
> + Status = gBS->OpenProtocol (
> + Controller,
> + &gEfiPciIoProtocolGuid,
> + (VOID **) &PciIo,
> + This->DriverBindingHandle,
> + Controller,
> + EFI_OPEN_PROTOCOL_BY_DRIVER
> + );
> +
> + if (!EFI_ERROR (Status)) {
> + Status = PciIo->Pci.Read (
> + PciIo,
> + EfiPciIoWidthUint32,
> + 0,
> + sizeof (Pci) / sizeof (UINT32),
> + &Pci
> + );
> + ASSERT_EFI_ERROR (Status);
> +
> + Status = EFI_UNSUPPORTED;
> + if ((Pci.Hdr.Command & (EFI_PCI_COMMAND_IO_SPACE |
> EFI_PCI_COMMAND_MEMORY_SPACE))
> + == (EFI_PCI_COMMAND_IO_SPACE |
> EFI_PCI_COMMAND_MEMORY_SPACE)
> + ) {
> + if (Pci.Hdr.ClassCode[2] == PCI_CLASS_BRIDGE) {
> + //
> + // See if this is a standard PCI to ISA Bridge from the Base Code
> and Class
> Code
> + //
> + if (Pci.Hdr.ClassCode[1] == PCI_CLASS_BRIDGE_ISA) {
> + Status = EFI_SUCCESS;
> + }
> +
> + //
> + // See if this is an Intel PCI to ISA Bridge in Positive Decode Mode
> + //
> + if ((Pci.Hdr.ClassCode[1] == PCI_CLASS_BRIDGE_ISA_PDECODE) &&
> + (Pci.Hdr.VendorId == 0x8086)) {
> + //
> + // See if this is on Function #0 to avoid false positive on
> + // PCI_CLASS_BRIDGE_OTHER that has the same value as
> + // PCI_CLASS_BRIDGE_ISA_PDECODE
> + //
> + Status = PciIo->GetLocation (
> + PciIo,
> + &SegmentNumber,
> + &BusNumber,
> + &DeviceNumber,
> + &FunctionNumber
> + );
> + if (!EFI_ERROR (Status) && (FunctionNumber == 0)) {
> + Status = EFI_SUCCESS;
> + } else {
> + Status = EFI_UNSUPPORTED;
> + }
> + }
> + }
> + }
> +
> + gBS->CloseProtocol (
> + Controller,
> + &gEfiPciIoProtocolGuid,
> + This->DriverBindingHandle,
> + Controller
> + );
> + }
> + if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {
> + return Status;
> + }
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Destroy the SIO controller handle.
> +
> + @param[in] ChildHandle The SIO controller handle.
> +
> + @retval EFI_SUCCESS The SIO controller handle is destroyed
> successfully.
> +**/
> +EFI_STATUS
> +SioDestroyDevice (
> + IN EFI_HANDLE ChildHandle
> + )
> +{
> + EFI_STATUS Status;
> + SIO_DEV *SioDev;
> + EFI_SIO_PROTOCOL *Sio;
> + EFI_PCI_IO_PROTOCOL *PciIo;
> +
> + Status = gBS->HandleProtocol (
> + ChildHandle,
> + &gEfiSioProtocolGuid,
> + (VOID **) &Sio
> + );
> + ASSERT_EFI_ERROR (Status);
> +
> + SioDev = SIO_DEV_FROM_THIS (Sio);
> +
> + Status = gBS->CloseProtocol (
> + SioDev->PciHandle,
> + &gEfiPciIoProtocolGuid,
> + mSioDriver.DriverBindingHandle,
> + ChildHandle
> + );
> + ASSERT_EFI_ERROR (Status);
> +
> + Status = gBS->UninstallMultipleProtocolInterfaces (
> + ChildHandle,
> + &gEfiDevicePathProtocolGuid,
> + SioDev->DevicePath,
> + &gEfiSioProtocolGuid,
> + &SioDev->Sio,
> + NULL
> + );
> + if (EFI_ERROR (Status)) {
> + gBS->OpenProtocol (
> + SioDev->PciHandle,
> + &gEfiPciIoProtocolGuid,
> + (VOID **) &PciIo,
> + mSioDriver.DriverBindingHandle,
> + ChildHandle,
> + EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
> + );
> + return Status;
> + }
> +
> + RemoveEntryList (&SioDev->Link);
> + FreePool (SioDev->DevicePath);
> + FreePool (SioDev);
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Create the SIO controller handle.
> +
> + @param[in] Controller The parent PCI controller handle.
> + @param[in] Device Pointer to EFI_SIO_ACPI_DEVICE_ID.
> + @param[in] ParentDevicePath The device path of the parent controller.
> + @param[out] PciIo The PciIo instance of the parent controller.
> +**/
> +VOID
> +SioCreateDevice (
> + IN EFI_HANDLE Controller,
> + IN EFI_SIO_ACPI_DEVICE_ID *Device,
> + IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,
> + OUT EFI_PCI_IO_PROTOCOL *PciIo
> + )
> +{
> + EFI_STATUS Status;
> + SIO_DEV *SioDev;
> +
> + DeviceEnable (Device);
> + SioDev = AllocateCopyPool (sizeof (SIO_DEV), &mSioDevTemplate);
> + ASSERT (SioDev != NULL);
> + if (SioDev == NULL) {
> + return;
> + }
> + InsertHeadList (&mSioDevPool, &SioDev->Link);
> +
> + SioDev->PciHandle = Controller;
> +
> + CopyMem (&SioDev->Device, Device, sizeof (*Device));
> +
> + mAcpiNodeTemplate.HID = Device->HID;
> + mAcpiNodeTemplate.UID = Device->UID;
> + SioDev->DevicePath = AppendDevicePathNode (ParentDevicePath,
> (EFI_DEVICE_PATH_PROTOCOL *) &mAcpiNodeTemplate);
> + ASSERT (SioDev->DevicePath != NULL);
> +
> + Status = gBS->InstallMultipleProtocolInterfaces (
> + &SioDev->Handle,
> + &gEfiSioProtocolGuid, &SioDev->Sio,
> + &gEfiDevicePathProtocolGuid, SioDev->DevicePath,
> + NULL
> + );
> + ASSERT_EFI_ERROR (Status);
> +
> + Status = gBS->OpenProtocol (
> + Controller,
> + &gEfiPciIoProtocolGuid,
> + (VOID **) &PciIo,
> + mSioDriver.DriverBindingHandle,
> + SioDev->Handle,
> + EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
> + );
> + ASSERT_EFI_ERROR (Status);
> +}
> +
> +
> +/**
> + Start this driver on ControllerHandle.
> +
> + @param[in] This Protocol instance pointer.
> + @param[in] Controller Handle of device to bind driver to
> + @param[in] RemainingDevicePath Optional parameter use to pick a specific
> child
> + device to start.
> +
> + @retval EFI_SUCCESS This driver is added to ControllerHandle
> + @retval EFI_ALREADY_STARTED This driver is already running on
> ControllerHandle
> + @retval other This driver does not support this device
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioDriverStart (
> + IN EFI_DRIVER_BINDING_PROTOCOL *This,
> + IN EFI_HANDLE Controller,
> + IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
> + )
> +{
> + EFI_STATUS Status;
> + EFI_PCI_IO_PROTOCOL *PciIo;
> + EFI_DEVICE_PATH_PROTOCOL *DevicePath;
> + EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
> + EFI_SIO_ACPI_DEVICE_ID *Devices;
> + SIO_DEV *SioDev;
> + UINTN Count;
> + UINTN Index;
> + ACPI_HID_DEVICE_PATH *AcpiNode;
> + BOOLEAN *HasCreated;
> + BOOLEAN *RequestCreate;
> + LIST_ENTRY *Node;
> +
> + HasCreated = NULL;
> + RequestCreate = NULL;
> + //
> + // Get the ISA bridge's Device Path
> + //
> + Status = gBS->OpenProtocol (
> + Controller,
> + &gEfiDevicePathProtocolGuid,
> + (VOID **) &ParentDevicePath,
> + This->DriverBindingHandle,
> + Controller,
> + EFI_OPEN_PROTOCOL_BY_DRIVER
> + );
> + if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {
> + return Status;
> + }
> +
> + //
> + // Get Pci IO
> + //
> + Status = gBS->OpenProtocol (
> + Controller,
> + &gEfiPciIoProtocolGuid,
> + (VOID **) &PciIo,
> + This->DriverBindingHandle,
> + Controller,
> + EFI_OPEN_PROTOCOL_BY_DRIVER
> + );
> +
> + if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {
> + gBS->CloseProtocol (
> + Controller,
> + &gEfiDevicePathProtocolGuid,
> + This->DriverBindingHandle,
> + Controller
> + );
> + return Status;
> + }
> +
> + if ((RemainingDevicePath != NULL) && IsDevicePathEnd
> (RemainingDevicePath)) {
> + return EFI_SUCCESS;
> + }
> +
> + DeviceGetList (&Devices, &Count);
> + if (Devices == NULL) {
> + Status = EFI_OUT_OF_RESOURCES;
> + goto Exit_Start;
> + }
> + HasCreated = AllocatePool (sizeof (BOOLEAN) * Count);
> + ASSERT (HasCreated != NULL);
> + if (HasCreated == NULL) {
> + Status = EFI_OUT_OF_RESOURCES;
> + goto Exit_Start;
> + }
> + RequestCreate = AllocatePool (sizeof (BOOLEAN) * Count);
> + ASSERT (RequestCreate != NULL);
> + if (RequestCreate == NULL) {
> + Status = EFI_OUT_OF_RESOURCES;
> + goto Exit_Start;
> + }
> +
> + //
> + // Assume no children has been created.
> + // Assume the SIO interface hasn't been initialized.
> + //
> + ZeroMem (HasCreated, sizeof (BOOLEAN) * Count);
> +
> + if (Status == EFI_ALREADY_STARTED) {
> + for (Node = GetFirstNode (&mSioDevPool);
> + !IsNull (&mSioDevPool, Node);
> + Node = GetNextNode (&mSioDevPool, Node)
> + ) {
> + SioDev = CR (Node, SIO_DEV, Link, SIO_DEV_SIGNATURE);
> + Status = gBS->HandleProtocol (
> + SioDev->PciHandle,
> + &gEfiDevicePathProtocolGuid,
> + (VOID **) &DevicePath
> + );
> + ASSERT_EFI_ERROR (Status);
> +
> + //
> + // See if they are under the same PCI to ISA Bridge
> + //
> + if (CompareMem (DevicePath, ParentDevicePath, GetDevicePathSize
> (DevicePath)) == 0) {
> + for (Index = 0; Index < Count; Index++) {
> + if (CompareMem (&SioDev->Device, &Devices[Index], sizeof
> (EFI_SIO_ACPI_DEVICE_ID)) == 0) {
> + HasCreated[Index] = TRUE;
> + break;
> + }
> + }
> + }
> + }
> + }
> +
> + AcpiNode = (ACPI_HID_DEVICE_PATH *) RemainingDevicePath;
> + for (Index = 0; Index < Count; Index++) {
> + if ((AcpiNode == NULL) ||
> + ((AcpiNode->HID == Devices[Index].HID) && (AcpiNode->UID ==
> Devices[Index].UID))
> + ) {
> + RequestCreate[Index] = TRUE;
> + } else {
> + RequestCreate[Index] = FALSE;
> + }
> + }
> +
> + for (Index = 0; Index < Count; Index++) {
> + if (RequestCreate[Index] && !HasCreated[Index]) {
> + SioCreateDevice (Controller, &Devices[Index], ParentDevicePath, PciIo);
> + }
> + }
> +Exit_Start:
> + if (Devices != NULL) {
> + FreePool (Devices);
> + }
> + if (HasCreated != NULL) {
> + FreePool (HasCreated);
> + }
> + if (RequestCreate != NULL) {
> + FreePool (RequestCreate);
> + }
> +
> + return Status;
> +}
> +
> +
> +/**
> + Stop this driver on ControllerHandle.
> +
> + @param[in] This Protocol instance pointer.
> + @param[in] Controller Handle of device to stop driver on
> + @param[in] NumberOfChildren Number of Handles in ChildHandleBuffer. If
> number of
> + children is zero stop the entire bus driver.
> + @param[in] ChildHandleBuffer List of Child Handles to Stop.
> +
> + @retval EFI_SUCCESS This driver is removed ControllerHandle
> + @retval other This driver was not removed from this device
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioDriverStop (
> + IN EFI_DRIVER_BINDING_PROTOCOL *This,
> + IN EFI_HANDLE Controller,
> + IN UINTN NumberOfChildren,
> + IN EFI_HANDLE *ChildHandleBuffer
> + )
> +{
> + EFI_STATUS Status;
> + UINTN Index;
> + BOOLEAN AllChildrenStopped;
> +
> + if (NumberOfChildren == 0) {
> + gBS->CloseProtocol (
> + Controller,
> + &gEfiDevicePathProtocolGuid,
> + This->DriverBindingHandle,
> + Controller
> + );
> + gBS->CloseProtocol (
> + Controller,
> + &gEfiPciIoProtocolGuid,
> + This->DriverBindingHandle,
> + Controller
> + );
> + return EFI_SUCCESS;
> + }
> +
> + AllChildrenStopped = TRUE;
> + for (Index = 0; Index < NumberOfChildren; Index++) {
> + Status = SioDestroyDevice (ChildHandleBuffer[Index]);
> + if (EFI_ERROR (Status)) {
> + AllChildrenStopped = FALSE;
> + }
> + }
> +
> + if (AllChildrenStopped) {
> + return EFI_SUCCESS;
> + } else {
> + return EFI_DEVICE_ERROR;
> + }
> +}
> diff --git a/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioService.c
> b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioService.c
> new file mode 100644
> index 0000000000..379002b833
> --- /dev/null
> +++ b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioService.c
> @@ -0,0 +1,249 @@
> +/** @file
> + Super I/O Interface implementation.
> +
> + Copyright (c) 2010 - 2019 Intel Corporation. All rights reserved. <BR>
> +
> + SPDX-License-Identifier: BSD-2-Clause-Patent
> +**/
> +
> +#include "SioDriver.h"
> +
> +
> +/**
> + Provides an interface to get a list of the current resources consumed by
> the
> device in the ACPI
> + Resource Descriptor format.
> +
> + GetResources() returns a list of resources currently consumed by the
> device.
> The
> + ResourceList is a pointer to the buffer containing resource descriptors
> for the
> device. The
> + descriptors are in the format of Small or Large ACPI resource descriptor as
> defined by ACPI
> + specification (2.0 & 3.0). The buffer of resource descriptors is
> terminated with
> the 'End tag'
> + resource descriptor.
> +
> + @param[in] This Indicates a pointer to the calling
> context.
> + @param[out] ResourceList A pointer to an ACPI resource descriptor
> list
> that defines the current resources
> + used by the device. Type
> ACPI_RESOURCE_HEADER_PTR is
> defined in the "Related
> + Definitions" below.
> +
> + @retval EFI_SUCCESS The operation completed successfully
> + @retval EFI_INVALID_PARAMETER ResourceList is NULL
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioGetResources (
> + IN CONST EFI_SIO_PROTOCOL *This,
> + OUT ACPI_RESOURCE_HEADER_PTR *ResourceList
> + )
> +{
> + SIO_DEV *SioDev;
> +
> + if (ResourceList == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + SioDev = SIO_DEV_FROM_THIS (This);
> +
> + return DeviceGetResources (&SioDev->Device, ResourceList);
> +}
> +
> +
> +/**
> + Provides a collection of resource descriptor lists. Each resource
> descriptor list
> in the collection
> + defines a combination of resources that can potentially be used by the
> device.
> +
> + @param[in] This Indicates a pointer to the calling
> context.
> + @param[out] ResourceCollection Collection of the resource descriptor
> lists.
> +
> + @retval EFI_SUCCESS The operation completed successfully
> + @retval EFI_INVALID_PARAMETER ResourceCollection is NULL
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioPossibleResources (
> + IN CONST EFI_SIO_PROTOCOL *This,
> + OUT ACPI_RESOURCE_HEADER_PTR *ResourceCollection
> + )
> +{
> + SIO_DEV *SioDev;
> +
> + if (ResourceCollection == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + SioDev = SIO_DEV_FROM_THIS (This);
> +
> + return DevicePossibleResources (&SioDev->Device, ResourceCollection);
> +}
> +
> +
> +/**
> + Sets the resources for the device.
> +
> + @param[in] This Indicates a pointer to the calling
> context.
> + @param[in] ResourceList Pointer to the ACPI resource descriptor
> list.
> Type ACPI_RESOURCE_HEADER_PTR
> + is defined in the "Related Definitions"
> section of
> + EFI_SIO_PROTOCOL.GetResources().
> +
> + @retval EFI_SUCCESS The operation completed successfully
> + @retval EFI_INVALID_PARAMETER ResourceList is invalid
> + @retval EFI_ACCESS_DENIED Some of the resources in ResourceList are
> in use
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioSetResources (
> + IN CONST EFI_SIO_PROTOCOL *This,
> + IN ACPI_RESOURCE_HEADER_PTR ResourceList
> + )
> +{
> + SIO_DEV *SioDev;
> + ACPI_RESOURCE_HEADER_PTR ResourcePtr;
> + ACPI_RESOURCE_HEADER_PTR ResourceCollection;
> + ACPI_RESOURCE_HEADER_PTR ResourcePtr2;
> + BOOLEAN Found;
> +
> + ResourcePtr = ResourceList;
> + SioDev = SIO_DEV_FROM_THIS (This);
> +
> + //
> + // Check whether the resource is in the possible resource collection
> + //
> + DevicePossibleResources (&SioDev->Device, &ResourceCollection);
> +
> + while (ResourcePtr.SmallHeader->Byte != ACPI_END_TAG_DESCRIPTOR) {
> +
> + Found = FALSE;
> + ResourcePtr2 = ResourceCollection;
> + while (ResourcePtr2.SmallHeader->Byte != ACPI_END_TAG_DESCRIPTOR) {
> + if (ResourcePtr2.SmallHeader->Bits.Type == 0) {
> + //
> + // Small Header
> + //
> + if (CompareMem (
> + ResourcePtr2.SmallHeader,
> + ResourcePtr.SmallHeader,
> + ResourcePtr2.SmallHeader->Bits.Length + sizeof
> (*ResourcePtr2.SmallHeader)
> + ) == 0) {
> + Found = TRUE;
> + break;
> + }
> +
> + ResourcePtr2.SmallHeader = (ACPI_SMALL_RESOURCE_HEADER *) ((UINT8
> *) ResourcePtr2.SmallHeader
> + + ResourcePtr2.SmallHeader->Bits.Length
> + + sizeof (*ResourcePtr2.SmallHeader));
> +
> + } else {
> + //
> + // Large Header
> + //
> + if (CompareMem (
> + ResourcePtr2.LargeHeader,
> + ResourcePtr.LargeHeader,
> + ResourcePtr2.LargeHeader->Length + sizeof
> (*ResourcePtr2.LargeHeader)
> + ) == 0) {
> + Found = TRUE;
> + break;
> + }
> +
> + ResourcePtr2.LargeHeader = (ACPI_LARGE_RESOURCE_HEADER *) ((UINT8
> *) ResourcePtr2.LargeHeader
> + + ResourcePtr2.LargeHeader->Length
> + + sizeof (*ResourcePtr2.LargeHeader));
> + }
> + }
> +
> + if (!Found) {
> + return EFI_ACCESS_DENIED;
> + }
> +
> + if (ResourcePtr.SmallHeader->Bits.Type == 0) {
> + ResourcePtr.SmallHeader = (ACPI_SMALL_RESOURCE_HEADER *) ((UINT8 *)
> ResourcePtr.SmallHeader
> + + ResourcePtr.SmallHeader->Bits.Length
> + + sizeof (*ResourcePtr.SmallHeader));
> + } else {
> + ResourcePtr.LargeHeader = (ACPI_LARGE_RESOURCE_HEADER *) ((UINT8
> *) ResourcePtr.LargeHeader
> + + ResourcePtr.LargeHeader->Length
> + + sizeof (*ResourcePtr.LargeHeader));
> + }
> + }
> +
> + //
> + // ResourceList can be set
> + //
> + return DeviceSetResources (&SioDev->Device, ResourceList);
> +}
> +
> +
> +/**
> + Provides a low level access to the registers for the Super I/O.
> +
> + @param[in] This Indicates a pointer to the calling
> context.
> + @param[in] Write Specifies the type of the register
> operation. If
> this parameter is TRUE,
> + Value is interpreted as an input
> parameter and the
> operation is a register write.
> + If this parameter is FALSE, Value
> is interpreted as an
> output parameter and the
> + operation is a register read.
> + @param[in] ExitCfgMode Exit Configuration Mode Indicator.
> If this
> parameter is set to TRUE, the
> + Super I/O driver will turn off
> configuration mode of the
> Super I/O prior to returning
> + from this function. If this
> parameter is set to FALSE, the
> Super I/O driver will
> + leave Super I/O in the
> configuration mode.
> + The Super I/O driver must track
> the current state of the
> Super I/O and enable the
> + configuration mode of Super I/O if
> necessary prior to
> register access.
> + @param[in] Register Register number.
> + @param[in, out] Value If Write is TRUE, Value is a
> pointer to the
> buffer containing the byte of data to be
> + written to the Super I/O register.
> If Write is FALSE, Value
> is a pointer to the
> + destination buffer for the byte of
> data to be read from
> the Super I/O register.
> +
> + @retval EFI_SUCCESS The operation completed
> successfully
> + @retval EFI_INVALID_PARAMETER The Value is NULL
> + @retval EFI_INVALID_PARAMETER Invalid Register number
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioRegisterAccess (
> + IN CONST EFI_SIO_PROTOCOL *This,
> + IN BOOLEAN Write,
> + IN BOOLEAN ExitCfgMode,
> + IN UINT8 Register,
> + IN OUT UINT8 *Value
> + )
> +{
> + if (Value == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + return EFI_SUCCESS;
> +}
> +
> +
> +/**
> + Provides an interface for a table based programming of the Super I/O
> registers.
> +
> + The Modify() function provides an interface for table based programming of
> the Super I/O
> + registers. This function can be used to perform programming of multiple
> Super
> I/O registers with a
> + single function call. For each table entry, the Register is read, its
> content is
> bitwise ANDed with
> + AndMask, and then ORed with OrMask before being written back to the
> Register. The Super
> + I/O driver must track the current state of the Super I/O and enable the
> configuration mode of Super I/
> + O if necessary prior to table processing. Once the table is processed, the
> Super
> I/O device has to be
> + returned to the original state.
> +
> + @param[in] This Indicates a pointer to the calling
> context.
> + @param[in] Command A pointer to an array of NumberOfCommands
> EFI_SIO_REGISTER_MODIFY
> + structures. Each structure specifies a
> single Super I/O
> register modify operation.
> + Type EFI_SIO_REGISTER_MODIFY is defined
> in the "Related
> Definitions" below.
> + @param[in] NumberOfCommands Number of elements in the Command
> array.
> +
> + @retval EFI_SUCCESS The operation completed successfully
> + @retval EFI_INVALID_PARAMETER Command is NULL
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioModify (
> + IN CONST EFI_SIO_PROTOCOL *This,
> + IN CONST EFI_SIO_REGISTER_MODIFY *Command,
> + IN UINTN NumberOfCommands
> + )
> +{
> +
> + if (Command == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + return EFI_SUCCESS;
> +}
> diff --git
> a/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/ComponentName.h
> b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/ComponentName.h
> new file mode 100644
> index 0000000000..5368f94bcd
> --- /dev/null
> +++ b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/ComponentName.h
> @@ -0,0 +1,87 @@
> +/** @file
> + Install Base and Size Info Ppi for Firmware Volume Recovery.
> +
> + Copyright (c) 2013 - 2019 Intel Corporation. All rights reserved. <BR>
> +
> + SPDX-License-Identifier: BSD-2-Clause-Patent
> +**/
> +
> +/**
> + Retrieves a Unicode string that is the user-readable name of the EFI
> Driver.
> +
> + @param This A pointer to the EFI_COMPONENT_NAME_PROTOCOL
> instance.
> + @param Language A pointer to a three-character ISO 639-2 language
> identifier.
> + This is the language of the driver name that 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.
> + @param DriverName 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
> +SioComponentNameGetDriverName (
> + 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 an EFI Driver.
> +
> + @param This A pointer to the EFI_COMPONENT_NAME_PROTOCOL
> instance.
> + @param ControllerHandle 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 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 A pointer to a three character ISO 639-2 language
> + identifier. This is the language of the
> controller 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.
> + @param ControllerName 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 NULL.
> + @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
> +SioComponentNameGetControllerName (
> + IN EFI_COMPONENT_NAME_PROTOCOL *This,
> + IN EFI_HANDLE ControllerHandle,
> + IN EFI_HANDLE ChildHandle OPTIONAL,
> + IN CHAR8 *Language,
> + OUT CHAR16 **ControllerName
> + );
> diff --git a/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/LegacySioDxe.inf
> b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/LegacySioDxe.inf
> new file mode 100644
> index 0000000000..275f36ca47
> --- /dev/null
> +++ b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/LegacySioDxe.inf
> @@ -0,0 +1,54 @@
> +## @file
> +# Module information that produces the
> +# EFI_SIO_PROTOCOL.
> +#
> +# Copyright (c) 2010 - 2019 Intel Corporation. All rights reserved. <BR>
> +#
> +# SPDX-License-Identifier: BSD-2-Clause-Patent
> +#
> +##
> +
> +[Defines]
> + INF_VERSION = 0x00010017
> + BASE_NAME = HitachiH8s2113Dxe
> + FILE_GUID = 7807E404-8281-4FF1-8457-0B54BABE263F
> + VERSION_STRING = 1.0
> + MODULE_TYPE = UEFI_DRIVER
> + ENTRY_POINT = SioDriverEntryPoint
> +#
> +# The following information is for reference only and not required by the
> build
> tools.
> +#
> +# VALID_ARCHITECTURES = IA32 X64 IPF EBC
> +#
> +
> +[LibraryClasses]
> + BaseLib
> + UefiLib
> + DebugLib
> + MemoryAllocationLib
> + PcdLib
> + DevicePathLib
> + IoLib
> + UefiDriverEntryPoint
> + UefiBootServicesTableLib
> + S3BootScriptLib
> + S3IoLib
> +
> +[Packages]
> + MdePkg/MdePkg.dec
> + MdeModulePkg/MdeModulePkg.dec
> +
> +[Sources]
> + SioChip.c
> + SioChip.h
> + SioService.c
> + SioService.h
> + SioDriver.c
> + SioDriver.h
> + ComponentName.c
> +
> +[Protocols]
> + gEfiPciIoProtocolGuid ## CONSUMES
> + gEfiDevicePathProtocolGuid ## PRODUCES
> + gEfiSioProtocolGuid ## PRODUCES
> +
> diff --git a/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/Register.h
> b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/Register.h
> new file mode 100644
> index 0000000000..f61f713cf2
> --- /dev/null
> +++ b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/Register.h
> @@ -0,0 +1,15 @@
> +/** @file
> + Super I/O register definitions
> +
> + Copyright (c) 2010 - 2019 Intel Corporation. All rights reserved. <BR>
> +
> + SPDX-License-Identifier: BSD-2-Clause-Patent
> +**/
> +
> +#ifndef _REGISTER_H_
> +#define _REGISTER_H_
> +
> +#define EC_COMMAND_PORT 0x66
> +#define EC_DATA_PORT 0x62
> +
> +#endif
> diff --git a/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioChip.h
> b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioChip.h
> new file mode 100644
> index 0000000000..48e28c44b0
> --- /dev/null
> +++ b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioChip.h
> @@ -0,0 +1,195 @@
> +/** @file
> + Super I/O specific header.
> +
> + Copyright (c) 2010 - 2019 Intel Corporation. All rights reserved. <BR>
> +
> + SPDX-License-Identifier: BSD-2-Clause-Patent
> +**/
> +
> +#ifndef _SIO_H_
> +#define _SIO_H_
> +
> +
> +#include "Register.h"
> +
> +typedef
> +UINT8
> +(EFIAPI *LOCAL_IO_WRITE8) (
> + IN UINTN Port,
> + IN UINT8 Value
> + );
> +
> +#define RESOURCE_IO BIT0
> +#define RESOURCE_IRQ BIT1
> +#define RESOURCE_DMA BIT2
> +#define RESOURCE_MEM BIT3
> +
> +#pragma pack(1)
> +
> +typedef struct {
> + EFI_ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR Io;
> + EFI_ACPI_IRQ_NOFLAG_DESCRIPTOR Irq;
> + EFI_ACPI_END_TAG_DESCRIPTOR End;
> +} ACPI_SIO_RESOURCES_IO_IRQ;
> +#pragma pack()
> +
> +typedef struct {
> + UINT32 HID;
> + UINT32 UID;
> +} EFI_SIO_ACPI_DEVICE_ID;
> +
> +typedef struct {
> + EFI_SIO_ACPI_DEVICE_ID Device;
> + UINT8 DeviceId;
> + UINT8 ResourceMask;
> + ACPI_RESOURCE_HEADER_PTR Resources;
> + ACPI_RESOURCE_HEADER_PTR PossibleResources;
> +} DEVICE_INFO;
> +
> +
> +/**
> + Initialize the SIO chip for S3.
> +**/
> +VOID
> +SioInitForS3 (
> + VOID
> + );
> +
> +
> +/**
> + Return the supported devices.
> +
> + @param[out] Devices Pointer to pointer of EFI_SIO_ACPI_DEVICE_ID.
> + Caller is responsible to free the buffer.
> + @param[out] Count Pointer to UINTN holding the device count.
> +**/
> +VOID
> +DeviceGetList (
> + OUT EFI_SIO_ACPI_DEVICE_ID **Devices,
> + OUT UINTN *Count
> + );
> +
> +
> +/**
> + Program the SIO chip to enable the specified device using the default
> resource.
> +
> + @param[in] Device Pointer to EFI_SIO_ACPI_DEVICE_ID.
> +**/
> +VOID
> +DeviceEnable (
> + IN EFI_SIO_ACPI_DEVICE_ID *Device
> + );
> +
> +
> +/**
> + Get the possible ACPI resources for specified device.
> +
> + @param[in] Device Pointer to EFI_SIO_ACPI_DEVICE_ID.
> + @param[out] Resources Pointer to ACPI_RESOURCE_HEADER_PTR.
> +
> + @retval EFI_SUCCESS The resources are returned successfully.
> +**/
> +EFI_STATUS
> +DevicePossibleResources (
> + IN EFI_SIO_ACPI_DEVICE_ID *Device,
> + OUT ACPI_RESOURCE_HEADER_PTR *Resources
> + );
> +
> +
> +/**
> + Set the ACPI resources for specified device.
> +
> + The SIO chip is programmed to use the new resources and the
> + resources setting are saved. The function assumes the resources
> + are valid.
> +
> + @param[in] Device Pointer to EFI_SIO_ACPI_DEVICE_ID.
> + @param[in] Resources ACPI_RESOURCE_HEADER_PTR.
> +
> + @retval EFI_SUCCESS The resources are set successfully.
> +**/
> +EFI_STATUS
> +DeviceSetResources (
> + IN EFI_SIO_ACPI_DEVICE_ID *Device,
> + IN ACPI_RESOURCE_HEADER_PTR Resources
> + );
> +
> +
> +/**
> + Get the ACPI resources for specified device.
> +
> + @param[in] Device Pointer to EFI_SIO_ACPI_DEVICE_ID.
> + @param[out] Resources Pointer to ACPI_RESOURCE_HEADER_PTR.
> +
> + @retval EFI_SUCCESS The resources are returned successfully.
> +**/
> +EFI_STATUS
> +DeviceGetResources (
> + IN EFI_SIO_ACPI_DEVICE_ID *Device,
> + OUT ACPI_RESOURCE_HEADER_PTR *Resources
> + );
> +
> +
> +/**
> + Program the SIO chip to enter the configure mode.
> +**/
> +VOID
> +EnterConfigMode (
> + VOID
> + );
> +
> +
> +/**
> + Program the SIO chip to exit the configure mode.
> +**/
> +VOID
> +ExitConfigMode (
> + VOID
> + );
> +
> +
> +/**
> + Perform a 8-bit I/O write to SIO register.
> +
> + @param[in] Index The register index.
> + @param[in] Data The value to write to register.
> +**/
> +VOID
> +WriteRegister (
> + IN UINT8 Index,
> + IN UINT8 Data
> + );
> +
> +
> +/**
> + Perform a 8-bit I/O read from SIO register.
> +
> + @param[in] Index The register index.
> +
> + @retval Value The value written to the register.
> +**/
> +UINT8
> +ReadRegister (
> + IN UINT8 Index
> + );
> +
> +//
> +// Prototypes for the sio internal function
> +//
> +//
> +// Internal function
> +//
> +
> +
> +/**
> + Find Super I/O controller.
> +
> + @retval EFI_SUCCESS Super I/O controller exists.
> + @retval EFI_UNSUPPORTED Super I/O controller does not exist.
> +**/
> +EFI_STATUS
> +SioInit (
> + VOID
> + );
> +
> +#endif
> diff --git a/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioDriver.h
> b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioDriver.h
> new file mode 100644
> index 0000000000..2e75871f7f
> --- /dev/null
> +++ b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioDriver.h
> @@ -0,0 +1,134 @@
> +/** @file
> + Header file for Driver Binding Protocol.
> +
> + Copyright (c) 2010 - 2019 Intel Corporation. All rights reserved. <BR>
> +
> + SPDX-License-Identifier: BSD-2-Clause-Patent
> +**/
> +
> +#ifndef _SIO_DRIVER_H_
> +#define _SIO_DRIVER_H_
> +
> +#include <PiDxe.h>
> +#include <IndustryStandard/Pci.h>
> +#include <Library/BaseLib.h>
> +#include <Library/MemoryAllocationLib.h>
> +#include <Library/BaseMemoryLib.h>
> +#include <Library/DebugLib.h>
> +#include <Library/IoLib.h>
> +#include <Library/S3BootScriptLib.h>
> +#include <Library/PciLib.h>
> +#include <Library/UefiBootServicesTableLib.h>
> +#include <Library/DevicePathLib.h>
> +#include <Library/UefiLib.h>
> +#include <Library/PcdLib.h>
> +
> +//
> +// Driver Consumed Protocol Prototypes
> +//
> +#include <Protocol/DriverBinding.h>
> +#include <Protocol/PciIo.h>
> +#include <Protocol/DevicePath.h>
> +
> +//
> +// Driver Produced Protocol Prototypes
> +//
> +#include <Protocol/SuperIo.h>
> +
> +
> +#include "SioChip.h"
> +#include "SioService.h"
> +#include "ComponentName.h"
> +
> +//
> +// Global Variables definitions
> +//
> +extern EFI_DRIVER_BINDING_PROTOCOL mSioDriver;
> +extern EFI_COMPONENT_NAME_PROTOCOL mSioComponentName;
> +extern EFI_COMPONENT_NAME2_PROTOCOL mSioComponentName2;
> +
> +//
> +// SIO device private data structure
> +//
> +#define SIO_DEV_SIGNATURE SIGNATURE_32 ('_', 'S', 'I', 'O')
> +
> +typedef struct _SIO_DEV {
> + UINT32 Signature;
> + EFI_HANDLE PciHandle;
> + EFI_SIO_ACPI_DEVICE_ID Device;
> + EFI_HANDLE Handle;
> + EFI_SIO_PROTOCOL Sio;
> + EFI_DEVICE_PATH_PROTOCOL *DevicePath;
> + LIST_ENTRY Link;
> +} SIO_DEV;
> +
> +#define SIO_DEV_FROM_THIS(a) CR (a, SIO_DEV, Sio, SIO_DEV_SIGNATURE)
> +
> +//
> +// Prototypes for Driver model protocol interface
> +//
> +
> +
> +/**
> + Test to see if this driver supports Controller Handle.
> +
> + @param[in] This Protocol instance pointer.
> + @param[in] Controller Handle of device to test
> + @param[in] RemainingDevicePath Optional parameter use to pick a specific
> child
> + device to start.
> +
> + @retval EFI_SUCCESS This driver supports this device
> + @retval EFI_ALREADY_STARTED This driver is already running on this
> device
> + @retval other This driver does not support this device
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioDriverSupported (
> + IN EFI_DRIVER_BINDING_PROTOCOL *This,
> + IN EFI_HANDLE Controller,
> + IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
> + );
> +
> +
> +/**
> + Start this driver on ControllerHandle.
> +
> + @param[in] This Protocol instance pointer.
> + @param[in] Controller Handle of device to bind driver to
> + @param[in] RemainingDevicePath Optional parameter use to pick a specific
> child
> + device to start.
> +
> + @retval EFI_SUCCESS This driver is added to ControllerHandle
> + @retval EFI_ALREADY_STARTED This driver is already running on
> ControllerHandle
> + @retval other This driver does not support this device
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioDriverStart (
> + IN EFI_DRIVER_BINDING_PROTOCOL *This,
> + IN EFI_HANDLE Controller,
> + IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
> + );
> +
> +
> +/**
> + Stop this driver on ControllerHandle.
> +
> + @param[in] This Protocol instance pointer.
> + @param[in] Controller Handle of device to stop driver on
> + @param[in] NumberOfChildren Number of Handles in ChildHandleBuffer. If
> number of
> + children is zero stop the entire bus driver.
> + @param[in] ChildHandleBuffer List of Child Handles to Stop.
> +
> + @retval EFI_SUCCESS This driver is removed ControllerHandle
> + @retval other This driver was not removed from this device
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioDriverStop (
> + IN EFI_DRIVER_BINDING_PROTOCOL *This,
> + IN EFI_HANDLE Controller,
> + IN UINTN NumberOfChildren,
> + IN EFI_HANDLE *ChildHandleBuffer
> + );
> +#endif
> diff --git a/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioService.h
> b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioService.h
> new file mode 100644
> index 0000000000..6a8081dc6e
> --- /dev/null
> +++ b/Platform/Intel/SimicsOpenBoardPkg/LegacySioDxe/SioService.h
> @@ -0,0 +1,143 @@
> +/** @file
> + Super I/O Interface function declarations.
> +
> + Copyright (c) 2010 - 2019 Intel Corporation. All rights reserved. <BR>
> +
> + SPDX-License-Identifier: BSD-2-Clause-Patent
> +**/
> +
> +#ifndef _SIO_ACPI_H_
> +#define _SIO_ACPI_H_
> +
> +//
> +// Prototypes for the SIO protocol interface
> +//
> +
> +
> +/**
> + Provides an interface to get a list of the current resources consumed by
> the
> device in the ACPI
> + Resource Descriptor format.
> +
> + GetResources() returns a list of resources currently consumed by the
> device.
> The
> + ResourceList is a pointer to the buffer containing resource descriptors
> for the
> device. The
> + descriptors are in the format of Small or Large ACPI resource descriptor as
> defined by ACPI
> + specification (2.0 & 3.0). The buffer of resource descriptors is
> terminated with
> the 'End tag'
> + resource descriptor.
> +
> + @param[in] This Indicates a pointer to the calling
> context.
> + @param[out] ResourceList A pointer to an ACPI resource
> descriptor list
> that defines the current resources
> + used by the device. Type
> ACPI_RESOURCE_HEADER_PTR is
> defined in the "Related
> + Definitions" below.
> +
> + @retval EFI_SUCCESS The operation completed successfully
> + @retval EFI_INVALID_PARAMETER ResourceList is NULL
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioGetResources (
> + IN CONST EFI_SIO_PROTOCOL *This,
> + OUT ACPI_RESOURCE_HEADER_PTR *ResourceList
> + );
> +
> +
> +/**
> + Sets the resources for the device.
> +
> + @param[in] This Indicates a pointer to the calling
> context.
> + @param[in] ResourceList Pointer to the ACPI resource descriptor
> list.
> Type ACPI_RESOURCE_HEADER_PTR
> + is defined in the "Related Definitions"
> section of
> + EFI_SIO_PROTOCOL.GetResources().
> +
> + @retval EFI_SUCCESS The operation completed successfully
> + @retval EFI_INVALID_PARAMETER ResourceList is invalid
> + @retval EFI_ACCESS_DENIED Some of the resources in ResourceList are
> in use
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioSetResources (
> + IN CONST EFI_SIO_PROTOCOL *This,
> + IN ACPI_RESOURCE_HEADER_PTR ResourceList
> + );
> +
> +
> +/**
> + Provides a collection of resource descriptor lists. Each resource
> descriptor list
> in the collection
> + defines a combination of resources that can potentially be used by the
> device.
> +
> + @param[in] This Indicates a pointer to the calling
> context.
> + @param[out] ResourceCollection Collection of the resource descriptor
> lists.
> +
> + @retval EFI_SUCCESS The operation completed successfully
> + @retval EFI_INVALID_PARAMETER ResourceCollection is NULL
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioPossibleResources (
> + IN CONST EFI_SIO_PROTOCOL *This,
> + OUT ACPI_RESOURCE_HEADER_PTR *ResourceCollection
> + );
> +
> +
> +/**
> + Provides a low level access to the registers for the Super I/O.
> +
> + @param[in] This Indicates a pointer to the calling
> context.
> + @param[in] Write Specifies the type of the register
> operation. If
> this parameter is TRUE,
> + Value is interpreted as an input
> parameter and the
> operation is a register write.
> + If this parameter is FALSE, Value
> is interpreted as an
> output parameter and the
> + operation is a register read.
> + @param[in] ExitCfgMode Exit Configuration Mode Indicator.
> If this
> parameter is set to TRUE, the
> + Super I/O driver will turn off
> configuration mode of the
> Super I/O prior to returning
> + from this function. If this
> parameter is set to FALSE, the
> Super I/O driver will
> + leave Super I/O in the
> configuration mode.
> + The Super I/O driver must track
> the current state of the
> Super I/O and enable the
> + configuration mode of Super I/O if
> necessary prior to
> register access.
> + @param[in] Register Register number.
> + @param[in, out] Value If Write is TRUE, Value is a
> pointer to the
> buffer containing the byte of data to be
> + written to the Super I/O register.
> If Write is FALSE, Value
> is a pointer to the
> + destination buffer for the byte of
> data to be read from
> the Super I/O register.
> +
> + @retval EFI_SUCCESS The operation completed
> successfully
> + @retval EFI_INVALID_PARAMETER The Value is NULL
> + @retval EFI_INVALID_PARAMETER Invalid Register number
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioRegisterAccess (
> + IN CONST EFI_SIO_PROTOCOL *This,
> + IN BOOLEAN Write,
> + IN BOOLEAN ExitCfgMode,
> + IN UINT8 Register,
> + IN OUT UINT8 *Value
> + );
> +
> +
> +/**
> + Provides an interface for a table based programming of the Super I/O
> registers.
> +
> + The Modify() function provides an interface for table based programming of
> the Super I/O
> + registers. This function can be used to perform programming of multiple
> Super
> I/O registers with a
> + single function call. For each table entry, the Register is read, its
> content is
> bitwise ANDed with
> + AndMask, and then ORed with OrMask before being written back to the
> Register. The Super
> + I/O driver must track the current state of the Super I/O and enable the
> configuration mode of Super I/
> + O if necessary prior to table processing. Once the table is processed, the
> Super
> I/O device has to be
> + returned to the original state.
> +
> + @param[in] This Indicates a pointer to the calling
> context.
> + @param[in] Command A pointer to an array of NumberOfCommands
> EFI_SIO_REGISTER_MODIFY
> + structures. Each structure specifies a
> single Super I/O
> register modify operation.
> + Type EFI_SIO_REGISTER_MODIFY is defined
> in the "Related
> Definitions" below.
> + @param[in] NumberOfCommands Number of elements in the Command
> array.
> +
> + @retval EFI_SUCCESS The operation completed successfully
> + @retval EFI_INVALID_PARAMETER Command is NULL
> +**/
> +EFI_STATUS
> +EFIAPI
> +SioModify (
> + IN CONST EFI_SIO_PROTOCOL *This,
> + IN CONST EFI_SIO_REGISTER_MODIFY *Command,
> + IN UINTN NumberOfCommands
> + );
> +
> +#endif
> --
> 2.16.2.windows.1
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