#\r
# ISA Support\r
#\r
+ OvmfPkg/SioBusDxe/SioBusDxe.inf\r
PcAtChipsetPkg/IsaAcpiDxe/IsaAcpi.inf\r
IntelFrameworkModulePkg/Bus/Isa/IsaBusDxe/IsaBusDxe.inf\r
IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/IsaSerialDxe.inf\r
#\r
# ISA Support\r
#\r
+ OvmfPkg/SioBusDxe/SioBusDxe.inf\r
PcAtChipsetPkg/IsaAcpiDxe/IsaAcpi.inf\r
IntelFrameworkModulePkg/Bus/Isa/IsaBusDxe/IsaBusDxe.inf\r
IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/IsaSerialDxe.inf\r
#\r
# ISA Support\r
#\r
+ OvmfPkg/SioBusDxe/SioBusDxe.inf\r
PcAtChipsetPkg/IsaAcpiDxe/IsaAcpi.inf\r
IntelFrameworkModulePkg/Bus/Isa/IsaBusDxe/IsaBusDxe.inf\r
IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/IsaSerialDxe.inf\r
--- /dev/null
+/** @file\r
+ UEFI Component Name(2) protocol implementation for SioBusDxe driver.\r
+\r
+ Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>\r
+\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions\r
+ of the BSD License which accompanies this distribution. The\r
+ full text of the license may be found at\r
+ http://opensource.org/licenses/bsd-license.php\r
+\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include "SioBusDxe.h"\r
+\r
+//\r
+// Driver name table\r
+//\r
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mSioBusDriverNameTable[] = {\r
+ { "eng;en", L"OVMF Sio Bus Driver" },\r
+ { NULL , NULL }\r
+};\r
+\r
+//\r
+// EFI Component Name Protocol\r
+//\r
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gSioBusComponentName = {\r
+ SioBusComponentNameGetDriverName,\r
+ SioBusComponentNameGetControllerName,\r
+ "eng"\r
+};\r
+\r
+//\r
+// EFI Component Name 2 Protocol\r
+//\r
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gSioBusComponentName2 = {\r
+ (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) SioBusComponentNameGetDriverName,\r
+ (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) SioBusComponentNameGetControllerName,\r
+ "en"\r
+};\r
+\r
+\r
+/**\r
+ Retrieves a Unicode string that is the user readable name of the driver.\r
+\r
+ This function retrieves the user readable name of a driver in the form of a\r
+ Unicode string. If the driver specified by This has a user readable name in\r
+ the language specified by Language, then a pointer to the driver name is\r
+ returned in DriverName, and EFI_SUCCESS is returned. If the driver specified\r
+ by This does not support the language specified by Language, then\r
+ EFI_UNSUPPORTED is returned.\r
+\r
+ @param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL\r
+ or EFI_COMPONENT_NAME_PROTOCOL instance.\r
+ @param[in] Language A pointer to a Null-terminated ASCII string\r
+ array indicating the language. This is the\r
+ language of the driver name that the caller is\r
+ requesting, and it must match one of the\r
+ languages specified in SupportedLanguages. The\r
+ number of languages supported by a driver is up\r
+ to the driver writer. Language is specified\r
+ in RFC 4646 or ISO 639-2 language code format.\r
+ @param[out] DriverName A pointer to the Unicode string to return. This\r
+ Unicode string is the name of the driver\r
+ specified by This in the language specified by\r
+ Language.\r
+\r
+ @retval EFI_SUCCESS The Unicode string for the Driver specified by\r
+ This and the language specified by Language was\r
+ returned in DriverName.\r
+ @retval EFI_INVALID_PARAMETER Language is NULL.\r
+ @retval EFI_INVALID_PARAMETER DriverName is NULL.\r
+ @retval EFI_UNSUPPORTED The driver specified by This does not support\r
+ the language specified by Language.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioBusComponentNameGetDriverName (\r
+ IN EFI_COMPONENT_NAME_PROTOCOL *This,\r
+ IN CHAR8 *Language,\r
+ OUT CHAR16 **DriverName\r
+ )\r
+{\r
+ return LookupUnicodeString2 (\r
+ Language,\r
+ This->SupportedLanguages,\r
+ mSioBusDriverNameTable,\r
+ DriverName,\r
+ (BOOLEAN)(This == &gSioBusComponentName)\r
+ );\r
+}\r
+\r
+/**\r
+ Retrieves a Unicode string that is the user readable name of the controller\r
+ that is being managed by a driver.\r
+\r
+ This function retrieves the user readable name of the controller specified by\r
+ ControllerHandle and ChildHandle in the form of a Unicode string. If the\r
+ driver specified by This has a user readable name in the language specified\r
+ by Language, then a pointer to the controller name is returned in\r
+ ControllerName, and EFI_SUCCESS is returned. If the driver specified by This\r
+ is not currently managing the controller specified by ControllerHandle and\r
+ ChildHandle, then EFI_UNSUPPORTED is returned. If the driver specified by\r
+ This does not support the language specified by Language, then\r
+ EFI_UNSUPPORTED is returned.\r
+\r
+ @param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL\r
+ or EFI_COMPONENT_NAME_PROTOCOL instance.\r
+ @param[in] ControllerHandle The handle of a controller that the driver\r
+ specified by This is managing. This handle\r
+ specifies the controller whose name is to be\r
+ returned.\r
+ @param[in] ChildHandle The handle of the child controller to retrieve\r
+ the name of. This is an optional parameter\r
+ that may be NULL. It will be NULL for device\r
+ drivers. It will also be NULL for a bus\r
+ drivers that wish to retrieve the name of the\r
+ bus controller. It will not be NULL for a bus\r
+ driver that wishes to retrieve the name of a\r
+ child controller.\r
+ @param[in] Language A pointer to a Null-terminated ASCII string\r
+ array indicating the language. This is the\r
+ language of the driver name that the caller is\r
+ requesting, and it must match one of the\r
+ languages specified in SupportedLanguages. The\r
+ number of languages supported by a driver is up\r
+ to the driver writer. Language is specified in\r
+ RFC 4646 or ISO 639-2 language code format.\r
+ @param[out] ControllerName A pointer to the Unicode string to return.\r
+ This Unicode string is the name of the\r
+ controller specified by ControllerHandle and\r
+ ChildHandle in the language specified by\r
+ Language from the point of view of the driver\r
+ specified by This.\r
+\r
+ @retval EFI_SUCCESS The Unicode string for the user readable name\r
+ in the language specified by Language for the\r
+ driver specified by This was returned in\r
+ DriverName.\r
+ @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.\r
+ @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid\r
+ EFI_HANDLE.\r
+ @retval EFI_INVALID_PARAMETER Language is NULL.\r
+ @retval EFI_INVALID_PARAMETER ControllerName is NULL.\r
+ @retval EFI_UNSUPPORTED The driver specified by This is not currently\r
+ managing the controller specified by\r
+ ControllerHandle and ChildHandle.\r
+ @retval EFI_UNSUPPORTED The driver specified by This does not support\r
+ the language specified by Language.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioBusComponentNameGetControllerName (\r
+ IN EFI_COMPONENT_NAME_PROTOCOL *This,\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN EFI_HANDLE ChildHandle OPTIONAL,\r
+ IN CHAR8 *Language,\r
+ OUT CHAR16 **ControllerName\r
+ )\r
+{\r
+ return EFI_UNSUPPORTED;\r
+}\r
--- /dev/null
+/** @file\r
+ The SioBusDxe driver is used to create child devices on the ISA bus and\r
+ installs the Super I/O protocols on them.\r
+\r
+ Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>\r
+\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions\r
+ of the BSD License which accompanies this distribution. The\r
+ full text of the license may be found at\r
+ http://opensource.org/licenses/bsd-license.php\r
+\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include "SioBusDxe.h"\r
+\r
+//\r
+// SioBus Driver Binding Protocol\r
+//\r
+EFI_DRIVER_BINDING_PROTOCOL gSioBusDriverBinding = {\r
+ SioBusDriverBindingSupported,\r
+ SioBusDriverBindingStart,\r
+ SioBusDriverBindingStop,\r
+ 0x10,\r
+ NULL,\r
+ NULL\r
+};\r
+\r
+\r
+/**\r
+ Tests to see if this driver supports a given controller. If a child device is\r
+ provided, it further tests to see if this driver supports creating a handle\r
+ for the specified child device.\r
+\r
+ This function checks to see if the driver specified by This supports the\r
+ device specified by ControllerHandle. Drivers will typically use the device\r
+ path attached to ControllerHandle and/or the services from the bus I/O\r
+ abstraction attached to ControllerHandle to determine if the driver supports\r
+ ControllerHandle. This function may be called many times during platform\r
+ initialization. In order to reduce boot times, the tests performed by this\r
+ function must be very small, and take as little time as possible to execute.\r
+ This function must not change the state of any hardware devices, and this\r
+ function must be aware that the device specified by ControllerHandle may\r
+ already be managed by the same driver or a different driver. This function\r
+ must match its calls to AllocatePages() with FreePages(), AllocatePool() with\r
+ FreePool(), and OpenProtocol() with CloseProtocol(). Since ControllerHandle\r
+ may have been previously started by the same driver, if a protocol is already\r
+ in the opened state, then it must not be closed with CloseProtocol(). This is\r
+ required to guarantee the state of ControllerHandle is not modified by this\r
+ function.\r
+\r
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL\r
+ instance.\r
+ @param[in] ControllerHandle The handle of the controller to test. This\r
+ handle must support a protocol interface\r
+ that supplies an I/O abstraction to the\r
+ driver.\r
+ @param[in] RemainingDevicePath A pointer to the remaining portion of a\r
+ device path. This parameter is ignored by\r
+ device drivers, and is optional for bus\r
+ drivers. For bus drivers, if this parameter\r
+ is not NULL, then the bus driver must\r
+ determine if the bus controller specified by\r
+ ControllerHandle and the child controller\r
+ specified by RemainingDevicePath are both\r
+ supported by this bus driver.\r
+\r
+ @retval EFI_SUCCESS The device specified by ControllerHandle and\r
+ RemainingDevicePath is supported by the\r
+ driver specified by This.\r
+ @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r
+ RemainingDevicePath is already being managed\r
+ by the driver specified by This.\r
+ @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r
+ RemainingDevicePath is already being managed\r
+ by a different driver or an application that\r
+ requires exclusive access.\r
+ @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r
+ RemainingDevicePath is not supported by the\r
+ driver specified by This.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioBusDriverBindingSupported (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Controller,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_PCI_IO_PROTOCOL *PciIo;\r
+ PCI_TYPE00 Pci;\r
+ UINTN SegmentNumber;\r
+ UINTN BusNumber;\r
+ UINTN DeviceNumber;\r
+ UINTN FunctionNumber;\r
+\r
+ //\r
+ // Get PciIo protocol instance\r
+ //\r
+ Status = gBS->OpenProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ (VOID**)&PciIo,\r
+ This->DriverBindingHandle,\r
+ Controller,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR(Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Status = PciIo->Pci.Read (\r
+ PciIo,\r
+ EfiPciIoWidthUint32,\r
+ 0,\r
+ sizeof(Pci) / sizeof(UINT32),\r
+ &Pci);\r
+\r
+ if (!EFI_ERROR (Status)) {\r
+ Status = EFI_UNSUPPORTED;\r
+ if ((Pci.Hdr.Command & 0x03) == 0x03) {\r
+ if (Pci.Hdr.ClassCode[2] == PCI_CLASS_BRIDGE) {\r
+ //\r
+ // See if this is a standard PCI to ISA Bridge from the Base Code and\r
+ // Class Code\r
+ //\r
+ if (Pci.Hdr.ClassCode[1] == PCI_CLASS_BRIDGE_ISA) {\r
+ Status = EFI_SUCCESS;\r
+ }\r
+\r
+ //\r
+ // See if this is an Intel PCI to ISA bridge in Positive Decode Mode\r
+ //\r
+ if (Pci.Hdr.ClassCode[1] == PCI_CLASS_BRIDGE_ISA_PDECODE &&\r
+ Pci.Hdr.VendorId == 0x8086) {\r
+ //\r
+ // See if this is on Function #0 to avoid false positives on\r
+ // PCI_CLASS_BRIDGE_OTHER that has the same value as\r
+ // PCI_CLASS_BRIDGE_ISA_PDECODE\r
+ //\r
+ Status = PciIo->GetLocation (\r
+ PciIo,\r
+ &SegmentNumber,\r
+ &BusNumber,\r
+ &DeviceNumber,\r
+ &FunctionNumber\r
+ );\r
+ if (!EFI_ERROR (Status) && FunctionNumber == 0) {\r
+ Status = EFI_SUCCESS;\r
+ } else {\r
+ Status = EFI_UNSUPPORTED;\r
+ }\r
+ }\r
+ }\r
+ }\r
+ }\r
+\r
+ gBS->CloseProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Controller\r
+ );\r
+\r
+ return Status;\r
+}\r
+\r
+/**\r
+ Starts a device controller or a bus controller.\r
+\r
+ The Start() function is designed to be invoked from the EFI boot service\r
+ ConnectController(). As a result, much of the error checking on the\r
+ parameters to Start() has been moved into this common boot service. It is\r
+ legal to call Start() from other locations, but the following calling\r
+ restrictions must be followed or the system behavior will not be\r
+ deterministic.\r
+ 1. ControllerHandle must be a valid EFI_HANDLE.\r
+ 2. If RemainingDevicePath is not NULL, then it must be a pointer to a\r
+ naturally aligned EFI_DEVICE_PATH_PROTOCOL.\r
+ 3. Prior to calling Start(), the Supported() function for the driver\r
+ specified by This must have been called with the same calling parameters,\r
+ and Supported() must have returned EFI_SUCCESS.\r
+\r
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL\r
+ instance.\r
+ @param[in] ControllerHandle The handle of the controller to start. This\r
+ handle must support a protocol interface\r
+ that supplies an I/O abstraction to the\r
+ driver.\r
+ @param[in] RemainingDevicePath A pointer to the remaining portion of a\r
+ device path. This parameter is ignored by\r
+ device drivers, and is optional for bus\r
+ drivers. For a bus driver, if this parameter\r
+ is NULL, then handles for all the children\r
+ of Controller are created by this driver. If\r
+ this parameter is not NULL and the first\r
+ Device Path Node is not the End of Device\r
+ Path Node, then only the handle for the\r
+ child device specified by the first Device\r
+ Path Node of RemainingDevicePath is created\r
+ by this driver. If the first Device Path\r
+ Node of RemainingDevicePath is the End of\r
+ Device Path Node, no child handle is created\r
+ by this driver.\r
+\r
+ @retval EFI_SUCCESS The device was started.\r
+ @retval EFI_DEVICE_ERROR The device could not be started due to a\r
+ device error.\r
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a\r
+ lack of resources.\r
+ @retval Others The driver failded to start the device.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioBusDriverBindingStart (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Controller,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_PCI_IO_PROTOCOL *PciIo;\r
+ EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r
+ UINT64 Supports;\r
+ UINT64 OriginalAttributes;\r
+ UINT64 Attributes;\r
+ BOOLEAN Enabled;\r
+ SIO_BUS_DRIVER_PRIVATE_DATA *Private;\r
+ UINT32 ChildDeviceNumber;\r
+\r
+ Enabled = FALSE;\r
+ Supports = 0;\r
+ OriginalAttributes = 0;\r
+ Private = NULL;\r
+\r
+ //\r
+ // Open the PCI I/O Protocol Interface\r
+ //\r
+ PciIo = NULL;\r
+ Status = gBS->OpenProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ (VOID**) &PciIo,\r
+ This->DriverBindingHandle,\r
+ Controller,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Open Device Path Protocol\r
+ //\r
+ Status = gBS->OpenProtocol (\r
+ Controller,\r
+ &gEfiDevicePathProtocolGuid,\r
+ (VOID **) &ParentDevicePath,\r
+ This->DriverBindingHandle,\r
+ Controller,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ gBS->CloseProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Controller\r
+ );\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Get supported PCI attributes\r
+ //\r
+ Status = PciIo->Attributes (\r
+ PciIo,\r
+ EfiPciIoAttributeOperationSupported,\r
+ 0,\r
+ &Supports\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ Supports &= (UINT64) (EFI_PCI_IO_ATTRIBUTE_ISA_IO |\r
+ EFI_PCI_IO_ATTRIBUTE_ISA_IO_16);\r
+ if (Supports == 0 ||\r
+ Supports == (EFI_PCI_IO_ATTRIBUTE_ISA_IO |\r
+ EFI_PCI_IO_ATTRIBUTE_ISA_IO_16)) {\r
+ Status = EFI_UNSUPPORTED;\r
+ goto Done;\r
+ }\r
+\r
+ Status = PciIo->Attributes (\r
+ PciIo,\r
+ EfiPciIoAttributeOperationGet,\r
+ 0,\r
+ &OriginalAttributes\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ Attributes = EFI_PCI_DEVICE_ENABLE |\r
+ Supports |\r
+ EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO;\r
+ Status = PciIo->Attributes (\r
+ PciIo,\r
+ EfiPciIoAttributeOperationEnable,\r
+ Attributes,\r
+ NULL\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ Enabled = TRUE;\r
+\r
+ //\r
+ // Store the OriginalAttributes for the restore in BindingStop()\r
+ //\r
+ Private = AllocateZeroPool (sizeof (SIO_BUS_DRIVER_PRIVATE_DATA));\r
+ if (Private == NULL) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto Done;\r
+ }\r
+ Private->PciIo = PciIo;\r
+ Private->OriginalAttributes = OriginalAttributes;\r
+\r
+ Status = gBS->InstallProtocolInterface (\r
+ &Controller,\r
+ &gEfiCallerIdGuid,\r
+ EFI_NATIVE_INTERFACE,\r
+ Private\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ //\r
+ // Report status code for the start of general controller initialization\r
+ //\r
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
+ EFI_PROGRESS_CODE,\r
+ (EFI_IO_BUS_LPC | EFI_IOB_PC_INIT),\r
+ ParentDevicePath\r
+ );\r
+\r
+ //\r
+ // Report status code for the start of enabling devices on the bus\r
+ //\r
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
+ EFI_PROGRESS_CODE,\r
+ (EFI_IO_BUS_LPC | EFI_IOB_PC_ENABLE),\r
+ ParentDevicePath\r
+ );\r
+\r
+ //\r
+ // Create all the children upon the first entrance\r
+ //\r
+ ChildDeviceNumber = SioCreateAllChildDevices (\r
+ This,\r
+ Controller,\r
+ PciIo,\r
+ ParentDevicePath\r
+ );\r
+ if (ChildDeviceNumber == 0) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ }\r
+\r
+Done:\r
+ if (EFI_ERROR (Status)) {\r
+ if (PciIo != NULL && Enabled) {\r
+ PciIo->Attributes (\r
+ PciIo,\r
+ EfiPciIoAttributeOperationSet,\r
+ OriginalAttributes,\r
+ NULL\r
+ );\r
+ }\r
+\r
+ gBS->CloseProtocol (\r
+ Controller,\r
+ &gEfiDevicePathProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Controller\r
+ );\r
+\r
+ gBS->CloseProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Controller\r
+ );\r
+\r
+ if (Private != NULL) {\r
+ gBS->UninstallMultipleProtocolInterfaces (\r
+ Controller,\r
+ &gEfiCallerIdGuid,\r
+ Private,\r
+ NULL\r
+ );\r
+ FreePool (Private);\r
+ }\r
+\r
+ return Status;\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ Stops a device controller or a bus controller.\r
+\r
+ The Stop() function is designed to be invoked from the EFI boot service\r
+ DisconnectController(). As a result, much of the error checking on the\r
+ parameters to Stop() has been moved into this common boot service. It is\r
+ legal to call Stop() from other locations, but the following calling\r
+ restrictions must be followed or the system behavior will not be\r
+ deterministic.\r
+ 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous\r
+ call to this same driver's Start() function.\r
+ 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a\r
+ valid EFI_HANDLE. In addition, all of these handles must have been created\r
+ in this driver's Start() function, and the Start() function must have\r
+ called OpenProtocol() on ControllerHandle with an Attribute of\r
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r
+\r
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL\r
+ instance.\r
+ @param[in] ControllerHandle A handle to the device being stopped. The\r
+ handle must support a bus specific I/O\r
+ protocol for the driver to use to stop the\r
+ device.\r
+ @param[in] NumberOfChildren The number of child device handles in\r
+ ChildHandleBuffer.\r
+ @param[in] ChildHandleBuffer An array of child handles to be freed. May be\r
+ NULL if NumberOfChildren is 0.\r
+\r
+ @retval EFI_SUCCESS The device was stopped.\r
+ @retval EFI_DEVICE_ERROR The device could not be stopped due to a\r
+ device error.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioBusDriverBindingStop (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Controller,\r
+ IN UINTN NumberOfChildren,\r
+ IN EFI_HANDLE *ChildHandleBuffer\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ SIO_BUS_DRIVER_PRIVATE_DATA *Private;\r
+ UINTN Index;\r
+ BOOLEAN AllChildrenStopped;\r
+ EFI_SIO_PROTOCOL *Sio;\r
+ SIO_DEV *SioDevice;\r
+ EFI_PCI_IO_PROTOCOL *PciIo;\r
+\r
+ if (NumberOfChildren == 0) {\r
+ //\r
+ // Restore PCI attributes\r
+ //\r
+ Status = gBS->OpenProtocol (\r
+ Controller,\r
+ &gEfiCallerIdGuid,\r
+ (VOID **) &Private,\r
+ This->DriverBindingHandle,\r
+ Controller,\r
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Status = Private->PciIo->Attributes (\r
+ Private->PciIo,\r
+ EfiPciIoAttributeOperationSet,\r
+ Private->OriginalAttributes,\r
+ NULL\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ gBS->UninstallProtocolInterface (\r
+ Controller,\r
+ &gEfiCallerIdGuid,\r
+ Private\r
+ );\r
+ FreePool (Private);\r
+\r
+ //\r
+ // Close the bus driver\r
+ //\r
+ Status = gBS->CloseProtocol (\r
+ Controller,\r
+ &gEfiDevicePathProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Controller\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Status = gBS->CloseProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Controller\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+ }\r
+\r
+ //\r
+ // Stop all the children\r
+ //\r
+ AllChildrenStopped = TRUE;\r
+\r
+ for (Index = 0; Index < NumberOfChildren; Index++) {\r
+ Status = gBS->OpenProtocol (\r
+ ChildHandleBuffer[Index],\r
+ &gEfiSioProtocolGuid,\r
+ (VOID **) &Sio,\r
+ This->DriverBindingHandle,\r
+ Controller,\r
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+ SioDevice = SIO_DEV_FROM_SIO (Sio);\r
+\r
+ //\r
+ // Close the child handle\r
+ //\r
+ Status = gBS->CloseProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ ChildHandleBuffer[Index]\r
+ );\r
+ Status = gBS->UninstallMultipleProtocolInterfaces (\r
+ ChildHandleBuffer[Index],\r
+ &gEfiDevicePathProtocolGuid,\r
+ SioDevice->DevicePath,\r
+ &gEfiSioProtocolGuid,\r
+ &SioDevice->Sio,\r
+ NULL\r
+ );\r
+\r
+ if (!EFI_ERROR (Status)) {\r
+ FreePool (SioDevice->DevicePath);\r
+ FreePool (SioDevice);\r
+ } else {\r
+ //\r
+ // Re-open PCI IO Protocol on behalf of the child device\r
+ // because of failure of destroying the child device handle\r
+ //\r
+ gBS->OpenProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ (VOID **) &PciIo,\r
+ This->DriverBindingHandle,\r
+ ChildHandleBuffer[Index],\r
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r
+ );\r
+ }\r
+ }\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ AllChildrenStopped = FALSE;\r
+ }\r
+ }\r
+\r
+ if (!AllChildrenStopped) {\r
+ return EFI_DEVICE_ERROR;\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ The entry point for the SioBusDxe driver.\r
+\r
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.\r
+ @param[in] SystemTable A pointer to the EFI System Table.\r
+\r
+ @retval EFI_SUCCESS The entry point is executed successfully.\r
+ @retval other Some error occurs when executing this entry point.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioBusDxeDriverEntryPoint (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
+ )\r
+{\r
+ //\r
+ // Install driver model protocol(s).\r
+ //\r
+ return EfiLibInstallDriverBindingComponentName2 (\r
+ ImageHandle,\r
+ SystemTable,\r
+ &gSioBusDriverBinding,\r
+ ImageHandle,\r
+ &gSioBusComponentName,\r
+ &gSioBusComponentName2\r
+ );\r
+}\r
--- /dev/null
+/** @file\r
+ The SioBusDxe driver is used to create child devices on the ISA bus and\r
+ installs the Super I/O protocols on them.\r
+\r
+ Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>\r
+\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions\r
+ of the BSD License which accompanies this distribution. The\r
+ full text of the license may be found at\r
+ http://opensource.org/licenses/bsd-license.php\r
+\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#ifndef __SIO_BUS_DXE_H__\r
+#define __SIO_BUS_DXE_H__\r
+\r
+#include <Uefi.h>\r
+\r
+#include <IndustryStandard/Pci.h>\r
+\r
+#include <Protocol/PciIo.h>\r
+#include <Protocol/SuperIo.h>\r
+\r
+#include <Library/UefiDriverEntryPoint.h>\r
+#include <Library/UefiLib.h>\r
+#include <Library/UefiBootServicesTableLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/ReportStatusCodeLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/DevicePathLib.h>\r
+\r
+#include "SioService.h"\r
+\r
+//\r
+// SIO Bus driver private data structure\r
+//\r
+typedef struct {\r
+ EFI_PCI_IO_PROTOCOL *PciIo;\r
+ UINT64 OriginalAttributes;\r
+} SIO_BUS_DRIVER_PRIVATE_DATA;\r
+\r
+\r
+//\r
+// Global Variables\r
+//\r
+extern EFI_COMPONENT_NAME_PROTOCOL gSioBusComponentName;\r
+extern EFI_COMPONENT_NAME2_PROTOCOL gSioBusComponentName2;\r
+\r
+\r
+//\r
+// EFI Component Name Functions\r
+//\r
+\r
+/**\r
+ Retrieves a Unicode string that is the user readable name of the driver.\r
+\r
+ This function retrieves the user readable name of a driver in the form of a\r
+ Unicode string. If the driver specified by This has a user readable name in\r
+ the language specified by Language, then a pointer to the driver name is\r
+ returned in DriverName, and EFI_SUCCESS is returned. If the driver specified\r
+ by This does not support the language specified by Language, then\r
+ EFI_UNSUPPORTED is returned.\r
+\r
+ @param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL\r
+ or EFI_COMPONENT_NAME_PROTOCOL instance.\r
+ @param[in] Language A pointer to a Null-terminated ASCII string\r
+ array indicating the language. This is the\r
+ language of the driver name that the caller is\r
+ requesting, and it must match one of the\r
+ languages specified in SupportedLanguages. The\r
+ number of languages supported by a driver is up\r
+ to the driver writer. Language is specified\r
+ in RFC 4646 or ISO 639-2 language code format.\r
+ @param[out] DriverName A pointer to the Unicode string to return. This\r
+ Unicode string is the name of the driver\r
+ specified by This in the language specified by\r
+ Language.\r
+\r
+ @retval EFI_SUCCESS The Unicode string for the Driver specified by\r
+ This and the language specified by Language was\r
+ returned in DriverName.\r
+ @retval EFI_INVALID_PARAMETER Language is NULL.\r
+ @retval EFI_INVALID_PARAMETER DriverName is NULL.\r
+ @retval EFI_UNSUPPORTED The driver specified by This does not support\r
+ the language specified by Language.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioBusComponentNameGetDriverName (\r
+ IN EFI_COMPONENT_NAME_PROTOCOL *This,\r
+ IN CHAR8 *Language,\r
+ OUT CHAR16 **DriverName\r
+ );\r
+\r
+/**\r
+ Retrieves a Unicode string that is the user readable name of the controller\r
+ that is being managed by a driver.\r
+\r
+ This function retrieves the user readable name of the controller specified by\r
+ ControllerHandle and ChildHandle in the form of a Unicode string. If the\r
+ driver specified by This has a user readable name in the language specified\r
+ by Language, then a pointer to the controller name is returned in\r
+ ControllerName, and EFI_SUCCESS is returned. If the driver specified by This\r
+ is not currently managing the controller specified by ControllerHandle and\r
+ ChildHandle, then EFI_UNSUPPORTED is returned. If the driver specified by\r
+ This does not support the language specified by Language, then\r
+ EFI_UNSUPPORTED is returned.\r
+\r
+ @param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL\r
+ or EFI_COMPONENT_NAME_PROTOCOL instance.\r
+ @param[in] ControllerHandle The handle of a controller that the driver\r
+ specified by This is managing. This handle\r
+ specifies the controller whose name is to be\r
+ returned.\r
+ @param[in] ChildHandle The handle of the child controller to retrieve\r
+ the name of. This is an optional parameter\r
+ that may be NULL. It will be NULL for device\r
+ drivers. It will also be NULL for a bus\r
+ drivers that wish to retrieve the name of the\r
+ bus controller. It will not be NULL for a bus\r
+ driver that wishes to retrieve the name of a\r
+ child controller.\r
+ @param[in] Language A pointer to a Null-terminated ASCII string\r
+ array indicating the language. This is the\r
+ language of the driver name that the caller is\r
+ requesting, and it must match one of the\r
+ languages specified in SupportedLanguages. The\r
+ number of languages supported by a driver is up\r
+ to the driver writer. Language is specified in\r
+ RFC 4646 or ISO 639-2 language code format.\r
+ @param[out] ControllerName A pointer to the Unicode string to return.\r
+ This Unicode string is the name of the\r
+ controller specified by ControllerHandle and\r
+ ChildHandle in the language specified by\r
+ Language from the point of view of the driver\r
+ specified by This.\r
+\r
+ @retval EFI_SUCCESS The Unicode string for the user readable name\r
+ in the language specified by Language for the\r
+ driver specified by This was returned in\r
+ DriverName.\r
+ @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.\r
+ @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid\r
+ EFI_HANDLE.\r
+ @retval EFI_INVALID_PARAMETER Language is NULL.\r
+ @retval EFI_INVALID_PARAMETER ControllerName is NULL.\r
+ @retval EFI_UNSUPPORTED The driver specified by This is not currently\r
+ managing the controller specified by\r
+ ControllerHandle and ChildHandle.\r
+ @retval EFI_UNSUPPORTED The driver specified by This does not support\r
+ the language specified by Language.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioBusComponentNameGetControllerName (\r
+ IN EFI_COMPONENT_NAME_PROTOCOL *This,\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN EFI_HANDLE ChildHandle OPTIONAL,\r
+ IN CHAR8 *Language,\r
+ OUT CHAR16 **ControllerName\r
+ );\r
+\r
+\r
+//\r
+// Driver Binding Protocol interfaces\r
+//\r
+\r
+/**\r
+ Tests to see if this driver supports a given controller. If a child device is\r
+ provided, it further tests to see if this driver supports creating a handle\r
+ for the specified child device.\r
+\r
+ This function checks to see if the driver specified by This supports the\r
+ device specified by ControllerHandle. Drivers will typically use the device\r
+ path attached to ControllerHandle and/or the services from the bus I/O\r
+ abstraction attached to ControllerHandle to determine if the driver supports\r
+ ControllerHandle. This function may be called many times during platform\r
+ initialization. In order to reduce boot times, the tests performed by this\r
+ function must be very small, and take as little time as possible to execute.\r
+ This function must not change the state of any hardware devices, and this\r
+ function must be aware that the device specified by ControllerHandle may\r
+ already be managed by the same driver or a different driver. This function\r
+ must match its calls to AllocatePages() with FreePages(), AllocatePool() with\r
+ FreePool(), and OpenProtocol() with CloseProtocol(). Since ControllerHandle\r
+ may have been previously started by the same driver, if a protocol is already\r
+ in the opened state, then it must not be closed with CloseProtocol(). This is\r
+ required to guarantee the state of ControllerHandle is not modified by this\r
+ function.\r
+\r
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL\r
+ instance.\r
+ @param[in] ControllerHandle The handle of the controller to test. This\r
+ handle must support a protocol interface\r
+ that supplies an I/O abstraction to the\r
+ driver.\r
+ @param[in] RemainingDevicePath A pointer to the remaining portion of a\r
+ device path. This parameter is ignored by\r
+ device drivers, and is optional for bus\r
+ drivers. For bus drivers, if this parameter\r
+ is not NULL, then the bus driver must\r
+ determine if the bus controller specified by\r
+ ControllerHandle and the child controller\r
+ specified by RemainingDevicePath are both\r
+ supported by this bus driver.\r
+\r
+ @retval EFI_SUCCESS The device specified by ControllerHandle and\r
+ RemainingDevicePath is supported by the\r
+ driver specified by This.\r
+ @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r
+ RemainingDevicePath is already being managed\r
+ by the driver specified by This.\r
+ @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r
+ RemainingDevicePath is already being managed\r
+ by a different driver or an application that\r
+ requires exclusive access.\r
+ @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r
+ RemainingDevicePath is not supported by the\r
+ driver specified by This.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioBusDriverBindingSupported (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Controller,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
+ );\r
+\r
+/**\r
+ Starts a device controller or a bus controller.\r
+\r
+ The Start() function is designed to be invoked from the EFI boot service\r
+ ConnectController(). As a result, much of the error checking on the\r
+ parameters to Start() has been moved into this common boot service. It is\r
+ legal to call Start() from other locations, but the following calling\r
+ restrictions must be followed or the system behavior will not be\r
+ deterministic.\r
+ 1. ControllerHandle must be a valid EFI_HANDLE.\r
+ 2. If RemainingDevicePath is not NULL, then it must be a pointer to a\r
+ naturally aligned EFI_DEVICE_PATH_PROTOCOL.\r
+ 3. Prior to calling Start(), the Supported() function for the driver\r
+ specified by This must have been called with the same calling parameters,\r
+ and Supported() must have returned EFI_SUCCESS.\r
+\r
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL\r
+ instance.\r
+ @param[in] ControllerHandle The handle of the controller to start. This\r
+ handle must support a protocol interface\r
+ that supplies an I/O abstraction to the\r
+ driver.\r
+ @param[in] RemainingDevicePath A pointer to the remaining portion of a\r
+ device path. This parameter is ignored by\r
+ device drivers, and is optional for bus\r
+ drivers. For a bus driver, if this parameter\r
+ is NULL, then handles for all the children\r
+ of Controller are created by this driver. If\r
+ this parameter is not NULL and the first\r
+ Device Path Node is not the End of Device\r
+ Path Node, then only the handle for the\r
+ child device specified by the first Device\r
+ Path Node of RemainingDevicePath is created\r
+ by this driver. If the first Device Path\r
+ Node of RemainingDevicePath is the End of\r
+ Device Path Node, no child handle is created\r
+ by this driver.\r
+\r
+ @retval EFI_SUCCESS The device was started.\r
+ @retval EFI_DEVICE_ERROR The device could not be started due to a\r
+ device error.\r
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a\r
+ lack of resources.\r
+ @retval Others The driver failded to start the device.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioBusDriverBindingStart (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Controller,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
+ );\r
+\r
+/**\r
+ Stops a device controller or a bus controller.\r
+\r
+ The Stop() function is designed to be invoked from the EFI boot service\r
+ DisconnectController(). As a result, much of the error checking on the\r
+ parameters to Stop() has been moved into this common boot service. It is\r
+ legal to call Stop() from other locations, but the following calling\r
+ restrictions must be followed or the system behavior will not be\r
+ deterministic.\r
+ 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous\r
+ call to this same driver's Start() function.\r
+ 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a\r
+ valid EFI_HANDLE. In addition, all of these handles must have been created\r
+ in this driver's Start() function, and the Start() function must have\r
+ called OpenProtocol() on ControllerHandle with an Attribute of\r
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r
+\r
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL\r
+ instance.\r
+ @param[in] ControllerHandle A handle to the device being stopped. The\r
+ handle must support a bus specific I/O\r
+ protocol for the driver to use to stop the\r
+ device.\r
+ @param[in] NumberOfChildren The number of child device handles in\r
+ ChildHandleBuffer.\r
+ @param[in] ChildHandleBuffer An array of child handles to be freed. May be\r
+ NULL if NumberOfChildren is 0.\r
+\r
+ @retval EFI_SUCCESS The device was stopped.\r
+ @retval EFI_DEVICE_ERROR The device could not be stopped due to a\r
+ device error.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioBusDriverBindingStop (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Controller,\r
+ IN UINTN NumberOfChildren,\r
+ IN EFI_HANDLE *ChildHandleBuffer\r
+ );\r
+\r
+#endif // __SIO_BUS_DXE_H__\r
--- /dev/null
+## @file\r
+# The SioBusDxe driver is used to create child devices on the ISA bus and\r
+# installs the Super I/O protocols on them.\r
+#\r
+# Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>\r
+#\r
+# This program and the accompanying materials\r
+# are licensed and made available under the terms and conditions of the BSD License\r
+# which accompanies this distribution. The full text of the license may be found at\r
+# http://opensource.org/licenses/bsd-license.php\r
+#\r
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+#\r
+##\r
+\r
+[Defines]\r
+ INF_VERSION = 0x00010005\r
+ BASE_NAME = SioBusDxe\r
+ MODULE_UNI_FILE = SioBusDxe.uni\r
+ FILE_GUID = 864E1CA8-85EB-4D63-9DCC-6E0FC90FFD55\r
+ MODULE_TYPE = UEFI_DRIVER\r
+ VERSION_STRING = 1.0\r
+ ENTRY_POINT = SioBusDxeDriverEntryPoint\r
+\r
+#\r
+# The following information is for reference only and not required by the build tools.\r
+#\r
+# VALID_ARCHITECTURES = IA32 X64 EBC\r
+#\r
+\r
+[Sources]\r
+ ComponentName.c\r
+ SioService.c\r
+ SioService.h\r
+ SioBusDxe.c\r
+ SioBusDxe.h\r
+\r
+[Packages]\r
+ MdePkg/MdePkg.dec\r
+\r
+[LibraryClasses]\r
+ UefiDriverEntryPoint\r
+ UefiLib\r
+ UefiBootServicesTableLib\r
+ DebugLib\r
+ ReportStatusCodeLib\r
+ MemoryAllocationLib\r
+ BaseMemoryLib\r
+ DevicePathLib\r
+\r
+[Protocols]\r
+ gEfiPciIoProtocolGuid ## TO_START\r
+ gEfiSioProtocolGuid ## BY_START\r
--- /dev/null
+// /** @file\r
+// The SioBusDxe driver is used to create child devices on the ISA bus and\r
+// installs the Super I/O protocols on them.\r
+//\r
+// Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>\r
+//\r
+// This program and the accompanying materials\r
+// are licensed and made available under the terms and conditions\r
+// of the BSD License which accompanies this distribution. The\r
+// full text of the license may be found at\r
+// http://opensource.org/licenses/bsd-license.php\r
+//\r
+// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+//\r
+// **/\r
+\r
+\r
+#string STR_MODULE_ABSTRACT #language en-US "Manage ISA devices on the ISA bus"\r
+\r
+#string STR_MODULE_DESCRIPTION #language en-US "The SioBusDxe driver is used to create child devices on the ISA bus and installs the Super I/O protocols on them."\r
--- /dev/null
+/** @file\r
+ The SioBusDxe driver is used to create child devices on the ISA bus and\r
+ installs the Super I/O protocols on them.\r
+\r
+ Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>\r
+\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions\r
+ of the BSD License which accompanies this distribution. The\r
+ full text of the license may be found at\r
+ http://opensource.org/licenses/bsd-license.php\r
+\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include "SioBusDxe.h"\r
+\r
+//\r
+// Super I/O Protocol interfaces\r
+//\r
+EFI_SIO_PROTOCOL mSioInterface = {\r
+ SioRegisterAccess,\r
+ SioGetResources,\r
+ SioSetResources,\r
+ SioPossibleResources,\r
+ SioModify\r
+};\r
+\r
+//\r
+// COM 1 UART Controller\r
+//\r
+GLOBAL_REMOVE_IF_UNREFERENCED\r
+SIO_RESOURCES_IO mCom1Resources = {\r
+ { { ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR }, 0x3F8, 8 },\r
+ { ACPI_END_TAG_DESCRIPTOR, 0 }\r
+};\r
+\r
+//\r
+// COM 2 UART Controller\r
+//\r
+GLOBAL_REMOVE_IF_UNREFERENCED\r
+SIO_RESOURCES_IO mCom2Resources = {\r
+ { { ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR }, 0x2F8, 8 },\r
+ { ACPI_END_TAG_DESCRIPTOR, 0 }\r
+};\r
+\r
+//\r
+// PS/2 Keyboard Controller\r
+//\r
+GLOBAL_REMOVE_IF_UNREFERENCED\r
+SIO_RESOURCES_IO mPs2KeyboardDeviceResources = {\r
+ { { ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR }, 0x60, 5 },\r
+ { ACPI_END_TAG_DESCRIPTOR, 0 }\r
+};\r
+\r
+//\r
+// Table of SIO Controllers\r
+//\r
+GLOBAL_REMOVE_IF_UNREFERENCED\r
+SIO_DEVICE_INFO mDevicesInfo[] = {\r
+ {\r
+ EISA_PNP_ID (0x501),\r
+ 0,\r
+ { (ACPI_SMALL_RESOURCE_HEADER *) &mCom1Resources }\r
+ }, // COM 1 UART Controller\r
+ {\r
+ EISA_PNP_ID (0x501),\r
+ 1,\r
+ { (ACPI_SMALL_RESOURCE_HEADER *) &mCom2Resources }\r
+ }, // COM 2 UART Controller\r
+ {\r
+ EISA_PNP_ID(0x303),\r
+ 0,\r
+ { (ACPI_SMALL_RESOURCE_HEADER *) &mPs2KeyboardDeviceResources }\r
+ } // PS/2 Keyboard Controller\r
+};\r
+\r
+//\r
+// ACPI Device Path Node template\r
+//\r
+GLOBAL_REMOVE_IF_UNREFERENCED\r
+ACPI_HID_DEVICE_PATH mAcpiDeviceNodeTemplate = {\r
+ { // Header\r
+ ACPI_DEVICE_PATH,\r
+ ACPI_DP,\r
+ {\r
+ (UINT8) (sizeof (ACPI_HID_DEVICE_PATH)),\r
+ (UINT8) ((sizeof (ACPI_HID_DEVICE_PATH)) >> 8)\r
+ }\r
+ },\r
+ 0x0, // HID\r
+ 0x0 // UID\r
+};\r
+\r
+\r
+/**\r
+ Provides a low level access to the registers for the Super I/O.\r
+\r
+ @param[in] This Indicates a pointer to the calling context.\r
+ @param[in] Write Specifies the type of the register operation.\r
+ If this parameter is TRUE, Value is interpreted\r
+ as an input parameter and the operation is a\r
+ register write. If this parameter is FALSE,\r
+ Value is interpreted as an output parameter and\r
+ the operation is a register read.\r
+ @param[in] ExitCfgMode Exit Configuration Mode Indicator. If this\r
+ parameter is set to TRUE, the Super I/O driver\r
+ will turn off configuration mode of the Super\r
+ I/O prior to returning from this function. If\r
+ this parameter is set to FALSE, the Super I/O\r
+ driver will leave Super I/O in the\r
+ configuration mode. The Super I/O driver must\r
+ track the current state of the Super I/O and\r
+ enable the configuration mode of Super I/O if\r
+ necessary prior to register access.\r
+ @param[in] Register Register number.\r
+ @param[in,out] Value If Write is TRUE, Value is a pointer to the\r
+ buffer containing the byte of data to be\r
+ written to the Super I/O register. If Write is\r
+ FALSE, Value is a pointer to the destination\r
+ buffer for the byte of data to be read from the\r
+ Super I/O register.\r
+\r
+ @retval EFI_SUCCESS The operation completed successfully.\r
+ @retval EFI_INVALID_PARAMETER The Value is NULL.\r
+ @retval EFI_INVALID_PARAMETER Invalid Register number.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioRegisterAccess (\r
+ IN CONST EFI_SIO_PROTOCOL *This,\r
+ IN BOOLEAN Write,\r
+ IN BOOLEAN ExitCfgMode,\r
+ IN UINT8 Register,\r
+ IN OUT UINT8 *Value\r
+ )\r
+{\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ Provides an interface to get a list of the current resources consumed by the\r
+ device in the ACPI Resource Descriptor format.\r
+\r
+ GetResources() returns a list of resources currently consumed by the device.\r
+ The ResourceList is a pointer to the buffer containing resource descriptors\r
+ for the device. The descriptors are in the format of Small or Large ACPI\r
+ resource descriptor as defined by ACPI specification (2.0 & 3.0). The buffer\r
+ of resource descriptors is terminated with the 'End tag' resource descriptor.\r
+\r
+ @param[in] This Indicates a pointer to the calling context.\r
+ @param[out] ResourceList A pointer to an ACPI resource descriptor list\r
+ that defines the current resources used by the\r
+ device.\r
+\r
+ @retval EFI_SUCCESS The operation completed successfully.\r
+ @retval EFI_INVALID_PARAMETER ResourceList is NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioGetResources (\r
+ IN CONST EFI_SIO_PROTOCOL *This,\r
+ OUT ACPI_RESOURCE_HEADER_PTR *ResourceList\r
+ )\r
+{\r
+ SIO_DEV *SioDevice;\r
+\r
+ if (ResourceList == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ SioDevice = SIO_DEV_FROM_SIO (This);\r
+ if (SioDevice->DeviceIndex < ARRAY_SIZE (mDevicesInfo)) {\r
+ *ResourceList = mDevicesInfo[SioDevice->DeviceIndex].Resources;\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ Sets the resources for the device.\r
+\r
+ @param[in] This Indicates a pointer to the calling context.\r
+ @param[in] ResourceList Pointer to the ACPI resource descriptor list.\r
+\r
+ @retval EFI_SUCCESS The operation completed successfully.\r
+ @retval EFI_INVALID_PARAMETER ResourceList is invalid.\r
+ @retval EFI_ACCESS_DENIED Some of the resources in ResourceList are in\r
+ use.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioSetResources (\r
+ IN CONST EFI_SIO_PROTOCOL *This,\r
+ IN ACPI_RESOURCE_HEADER_PTR ResourceList\r
+ )\r
+{\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ Provides a collection of resource descriptor lists. Each resource descriptor\r
+ list in the collection defines a combination of resources that can\r
+ potentially be used by the device.\r
+\r
+ @param[in] This Indicates a pointer to the calling context.\r
+ @param[out] ResourceCollection Collection of the resource descriptor\r
+ lists.\r
+\r
+ @retval EFI_SUCCESS The operation completed successfully.\r
+ @retval EFI_INVALID_PARAMETER ResourceCollection is NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioPossibleResources (\r
+ IN CONST EFI_SIO_PROTOCOL *This,\r
+ OUT ACPI_RESOURCE_HEADER_PTR *ResourceCollection\r
+ )\r
+{\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ Provides an interface for a table based programming of the Super I/O\r
+ registers.\r
+\r
+ The Modify() function provides an interface for table based programming of\r
+ the Super I/O registers. This function can be used to perform programming of\r
+ multiple Super I/O registers with a single function call. For each table\r
+ entry, the Register is read, its content is bitwise ANDed with AndMask, and\r
+ then ORed with OrMask before being written back to the Register. The Super\r
+ I/O driver must track the current state of the Super I/O and enable the\r
+ configuration mode of Super I/O if necessary prior to table processing. Once\r
+ the table is processed, the Super I/O device has to be returned to the\r
+ original state.\r
+\r
+ @param[in] This Indicates a pointer to the calling context.\r
+ @param[in] Command A pointer to an array of NumberOfCommands\r
+ EFI_SIO_REGISTER_MODIFY structures. Each\r
+ structure specifies a single Super I/O register\r
+ modify operation.\r
+ @param[in] NumberOfCommands Number of elements in the Command array.\r
+\r
+ @retval EFI_SUCCESS The operation completed successfully.\r
+ @retval EFI_INVALID_PARAMETER Command is NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioModify (\r
+ IN CONST EFI_SIO_PROTOCOL *This,\r
+ IN CONST EFI_SIO_REGISTER_MODIFY *Command,\r
+ IN UINTN NumberOfCommands\r
+ )\r
+{\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+/**\r
+ Create the child device with a given device index.\r
+\r
+ @param[in] This The EFI_DRIVER_BINDING_PROTOCOL instance.\r
+ @param[in] Controller The handle of ISA bus controller.\r
+ @param[in] PciIo The pointer to the PCI protocol.\r
+ @param[in] ParentDevicePath Device path of the ISA bus controller.\r
+ @param[in] DeviceIndex Index of the device supported by this driver.\r
+\r
+ @retval EFI_SUCCESS The child device has been created successfully.\r
+ @retval Others Error occured during the child device creation.\r
+\r
+**/\r
+EFI_STATUS\r
+SioCreateChildDevice (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Controller,\r
+ IN EFI_PCI_IO_PROTOCOL *PciIo,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,\r
+ IN UINT32 DeviceIndex\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ SIO_DEV *SioDevice;\r
+\r
+ //\r
+ // Initialize the SIO_DEV structure\r
+ //\r
+ SioDevice = AllocateZeroPool (sizeof (SIO_DEV));\r
+ if (SioDevice == NULL) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
+\r
+ SioDevice->Signature = SIO_DEV_SIGNATURE;\r
+ SioDevice->Handle = NULL;\r
+ SioDevice->PciIo = PciIo;\r
+\r
+ //\r
+ // Construct the child device path\r
+ //\r
+ mAcpiDeviceNodeTemplate.HID = mDevicesInfo[DeviceIndex].Hid;\r
+ mAcpiDeviceNodeTemplate.UID = mDevicesInfo[DeviceIndex].Uid;\r
+ SioDevice->DevicePath = AppendDevicePathNode (\r
+ ParentDevicePath,\r
+ (EFI_DEVICE_PATH_PROTOCOL *) &mAcpiDeviceNodeTemplate\r
+ );\r
+ if (SioDevice->DevicePath == NULL) {\r
+ Status = EFI_OUT_OF_RESOURCES;\r
+ goto Done;\r
+ }\r
+\r
+ CopyMem (&SioDevice->Sio, &mSioInterface, sizeof (EFI_SIO_PROTOCOL));\r
+ SioDevice->DeviceIndex = DeviceIndex;\r
+\r
+ //\r
+ // Create a child handle and install Device Path and Super I/O protocols\r
+ //\r
+ Status = gBS->InstallMultipleProtocolInterfaces (\r
+ &SioDevice->Handle,\r
+ &gEfiDevicePathProtocolGuid,\r
+ SioDevice->DevicePath,\r
+ &gEfiSioProtocolGuid,\r
+ &SioDevice->Sio,\r
+ NULL\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ Status = gBS->OpenProtocol (\r
+ Controller,\r
+ &gEfiPciIoProtocolGuid,\r
+ (VOID **) &PciIo,\r
+ This->DriverBindingHandle,\r
+ SioDevice->Handle,\r
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ gBS->UninstallMultipleProtocolInterfaces (\r
+ SioDevice->Handle,\r
+ &gEfiDevicePathProtocolGuid,\r
+ SioDevice->DevicePath,\r
+ &gEfiSioProtocolGuid,\r
+ &SioDevice->Sio,\r
+ NULL\r
+ );\r
+ }\r
+\r
+Done:\r
+ if (EFI_ERROR (Status)) {\r
+ if (SioDevice->DevicePath != NULL) {\r
+ FreePool (SioDevice->DevicePath);\r
+ }\r
+\r
+ FreePool (SioDevice);\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+/**\r
+ Create all the ISA child devices on the ISA bus controller (PCI to ISA\r
+ bridge).\r
+\r
+ @param[in] This The EFI_DRIVER_BINDING_PROTOCOL instance.\r
+ @param[in] Controller The handle of ISA bus controller.\r
+ @param[in] PciIo The pointer to the PCI protocol.\r
+ @param[in] ParentDevicePath Device path of the ISA bus controller.\r
+\r
+ @retval The number of child device that is successfully created.\r
+\r
+**/\r
+UINT32\r
+SioCreateAllChildDevices (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Controller,\r
+ IN EFI_PCI_IO_PROTOCOL *PciIo,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath\r
+ )\r
+{\r
+ UINT32 Index;\r
+ UINT32 ChildDeviceNumber;\r
+ EFI_STATUS Status;\r
+\r
+ ChildDeviceNumber = 0;\r
+\r
+ for (Index = 0; Index < ARRAY_SIZE (mDevicesInfo); Index++) {\r
+ Status = SioCreateChildDevice (\r
+ This,\r
+ Controller,\r
+ PciIo,\r
+ ParentDevicePath,\r
+ Index\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+ ChildDeviceNumber++;\r
+ }\r
+ }\r
+\r
+ return ChildDeviceNumber;\r
+}\r
--- /dev/null
+/** @file\r
+ The SioBusDxe driver is used to create child devices on the ISA bus and\r
+ installs the Super I/O protocols on them.\r
+\r
+ Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>\r
+\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions\r
+ of the BSD License which accompanies this distribution. The\r
+ full text of the license may be found at\r
+ http://opensource.org/licenses/bsd-license.php\r
+\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#ifndef __SIO_SERVICE_H__\r
+#define __SIO_SERVICE_H__\r
+\r
+#pragma pack(1)\r
+\r
+typedef struct {\r
+ EFI_ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR Io;\r
+ EFI_ACPI_END_TAG_DESCRIPTOR End;\r
+} SIO_RESOURCES_IO;\r
+\r
+#pragma pack()\r
+\r
+typedef struct {\r
+ UINT32 Hid;\r
+ UINT32 Uid;\r
+ ACPI_RESOURCE_HEADER_PTR Resources;\r
+} SIO_DEVICE_INFO;\r
+\r
+//\r
+// SIO device private data structure\r
+//\r
+typedef struct {\r
+ UINT32 Signature;\r
+ EFI_HANDLE Handle;\r
+ EFI_PCI_IO_PROTOCOL *PciIo;\r
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r
+\r
+ EFI_SIO_PROTOCOL Sio;\r
+ UINT32 DeviceIndex;\r
+} SIO_DEV;\r
+#define SIO_DEV_SIGNATURE SIGNATURE_32 ('S', 'I', 'O', 'D')\r
+#define SIO_DEV_FROM_SIO(a) CR (a, SIO_DEV, Sio, SIO_DEV_SIGNATURE)\r
+\r
+\r
+//\r
+// Super I/O Protocol interfaces\r
+//\r
+\r
+/**\r
+ Provides a low level access to the registers for the Super I/O.\r
+\r
+ @param[in] This Indicates a pointer to the calling context.\r
+ @param[in] Write Specifies the type of the register operation.\r
+ If this parameter is TRUE, Value is interpreted\r
+ as an input parameter and the operation is a\r
+ register write. If this parameter is FALSE,\r
+ Value is interpreted as an output parameter and\r
+ the operation is a register read.\r
+ @param[in] ExitCfgMode Exit Configuration Mode Indicator. If this\r
+ parameter is set to TRUE, the Super I/O driver\r
+ will turn off configuration mode of the Super\r
+ I/O prior to returning from this function. If\r
+ this parameter is set to FALSE, the Super I/O\r
+ driver will leave Super I/O in the\r
+ configuration mode. The Super I/O driver must\r
+ track the current state of the Super I/O and\r
+ enable the configuration mode of Super I/O if\r
+ necessary prior to register access.\r
+ @param[in] Register Register number.\r
+ @param[in,out] Value If Write is TRUE, Value is a pointer to the\r
+ buffer containing the byte of data to be\r
+ written to the Super I/O register. If Write is\r
+ FALSE, Value is a pointer to the destination\r
+ buffer for the byte of data to be read from the\r
+ Super I/O register.\r
+\r
+ @retval EFI_SUCCESS The operation completed successfully.\r
+ @retval EFI_INVALID_PARAMETER The Value is NULL.\r
+ @retval EFI_INVALID_PARAMETER Invalid Register number.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioRegisterAccess (\r
+ IN CONST EFI_SIO_PROTOCOL *This,\r
+ IN BOOLEAN Write,\r
+ IN BOOLEAN ExitCfgMode,\r
+ IN UINT8 Register,\r
+ IN OUT UINT8 *Value\r
+ );\r
+\r
+/**\r
+ Provides an interface to get a list of the current resources consumed by the\r
+ device in the ACPI Resource Descriptor format.\r
+\r
+ GetResources() returns a list of resources currently consumed by the device.\r
+ The ResourceList is a pointer to the buffer containing resource descriptors\r
+ for the device. The descriptors are in the format of Small or Large ACPI\r
+ resource descriptor as defined by ACPI specification (2.0 & 3.0). The buffer\r
+ of resource descriptors is terminated with the 'End tag' resource descriptor.\r
+\r
+ @param[in] This Indicates a pointer to the calling context.\r
+ @param[out] ResourceList A pointer to an ACPI resource descriptor list\r
+ that defines the current resources used by the\r
+ device.\r
+\r
+ @retval EFI_SUCCESS The operation completed successfully.\r
+ @retval EFI_INVALID_PARAMETER ResourceList is NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioGetResources (\r
+ IN CONST EFI_SIO_PROTOCOL *This,\r
+ OUT ACPI_RESOURCE_HEADER_PTR *ResourceList\r
+ );\r
+\r
+/**\r
+ Sets the resources for the device.\r
+\r
+ @param[in] This Indicates a pointer to the calling context.\r
+ @param[in] ResourceList Pointer to the ACPI resource descriptor list.\r
+\r
+ @retval EFI_SUCCESS The operation completed successfully.\r
+ @retval EFI_INVALID_PARAMETER ResourceList is invalid.\r
+ @retval EFI_ACCESS_DENIED Some of the resources in ResourceList are in\r
+ use.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioSetResources (\r
+ IN CONST EFI_SIO_PROTOCOL *This,\r
+ IN ACPI_RESOURCE_HEADER_PTR ResourceList\r
+ );\r
+\r
+/**\r
+ Provides a collection of resource descriptor lists. Each resource descriptor\r
+ list in the collection defines a combination of resources that can\r
+ potentially be used by the device.\r
+\r
+ @param[in] This Indicates a pointer to the calling context.\r
+ @param[out] ResourceCollection Collection of the resource descriptor\r
+ lists.\r
+\r
+ @retval EFI_SUCCESS The operation completed successfully.\r
+ @retval EFI_INVALID_PARAMETER ResourceCollection is NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioPossibleResources (\r
+ IN CONST EFI_SIO_PROTOCOL *This,\r
+ OUT ACPI_RESOURCE_HEADER_PTR *ResourceCollection\r
+ );\r
+\r
+/**\r
+ Provides an interface for a table based programming of the Super I/O\r
+ registers.\r
+\r
+ The Modify() function provides an interface for table based programming of\r
+ the Super I/O registers. This function can be used to perform programming of\r
+ multiple Super I/O registers with a single function call. For each table\r
+ entry, the Register is read, its content is bitwise ANDed with AndMask, and\r
+ then ORed with OrMask before being written back to the Register. The Super\r
+ I/O driver must track the current state of the Super I/O and enable the\r
+ configuration mode of Super I/O if necessary prior to table processing. Once\r
+ the table is processed, the Super I/O device has to be returned to the\r
+ original state.\r
+\r
+ @param[in] This Indicates a pointer to the calling context.\r
+ @param[in] Command A pointer to an array of NumberOfCommands\r
+ EFI_SIO_REGISTER_MODIFY structures. Each\r
+ structure specifies a single Super I/O register\r
+ modify operation.\r
+ @param[in] NumberOfCommands Number of elements in the Command array.\r
+\r
+ @retval EFI_SUCCESS The operation completed successfully.\r
+ @retval EFI_INVALID_PARAMETER Command is NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SioModify (\r
+ IN CONST EFI_SIO_PROTOCOL *This,\r
+ IN CONST EFI_SIO_REGISTER_MODIFY *Command,\r
+ IN UINTN NumberOfCommands\r
+ );\r
+\r
+//\r
+// Internal functions\r
+//\r
+\r
+/**\r
+ Create all the ISA child devices on the ISA bus controller (PCI to ISA\r
+ bridge).\r
+\r
+ @param[in] This The EFI_DRIVER_BINDING_PROTOCOL instance.\r
+ @param[in] Controller The handle of ISA bus controller.\r
+ @param[in] PciIo The pointer to the PCI protocol.\r
+ @param[in] ParentDevicePath Device path of the ISA bus controller.\r
+\r
+ @retval The number of child device that is successfully created.\r
+\r
+**/\r
+UINT32\r
+SioCreateAllChildDevices (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE Controller,\r
+ IN EFI_PCI_IO_PROTOCOL *PciIo,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath\r
+ );\r
+\r
+#endif // __SIO_SERVICE_H__\r
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