|
@@ -0,0 +1,951 @@
|
|
|
+/** @file
|
|
|
+ Produces the SIO Protocols for ISA devices integrated in the Platform
|
|
|
+ Controller Unit (PCU).
|
|
|
+
|
|
|
+ Copyright (c) 2004 - 2019, Intel Corporation. All rights reserved.<BR>
|
|
|
+
|
|
|
+ SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
+
|
|
|
+**/
|
|
|
+
|
|
|
+#include "PcuSio.h"
|
|
|
+
|
|
|
+//
|
|
|
+// PCU SIO Driver Global Variables
|
|
|
+//
|
|
|
+EFI_DRIVER_BINDING_PROTOCOL gPcuSioDriverBinding = {
|
|
|
+ PcuSioDriverBindingSupported,
|
|
|
+ PcuSioDriverBindingStart,
|
|
|
+ PcuSioDriverBindingStop,
|
|
|
+ 0x10,
|
|
|
+ NULL,
|
|
|
+ NULL
|
|
|
+};
|
|
|
+
|
|
|
+//
|
|
|
+// Super I/O Protocol interfaces
|
|
|
+//
|
|
|
+EFI_SIO_PROTOCOL mSioInterface = {
|
|
|
+ SioRegisterAccess,
|
|
|
+ SioGetResources,
|
|
|
+ SioSetResources,
|
|
|
+ SioPossibleResources,
|
|
|
+ SioModify
|
|
|
+};
|
|
|
+
|
|
|
+//
|
|
|
+// COM 1 UART Controller
|
|
|
+//
|
|
|
+GLOBAL_REMOVE_IF_UNREFERENCED
|
|
|
+SIO_RESOURCES_IO mCom1Resources = {
|
|
|
+ { { ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR }, 0x3F8, 8 },
|
|
|
+ { ACPI_END_TAG_DESCRIPTOR, 0 }
|
|
|
+};
|
|
|
+
|
|
|
+//
|
|
|
+// Table of SIO Controllers
|
|
|
+//
|
|
|
+GLOBAL_REMOVE_IF_UNREFERENCED
|
|
|
+SIO_DEVICE_INFO mDevicesInfo[] = {
|
|
|
+ {
|
|
|
+ EISA_PNP_ID (0x501),
|
|
|
+ 0,
|
|
|
+ { (ACPI_SMALL_RESOURCE_HEADER *) &mCom1Resources }
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+//
|
|
|
+// ACPI Device Path Node template
|
|
|
+//
|
|
|
+GLOBAL_REMOVE_IF_UNREFERENCED
|
|
|
+ACPI_HID_DEVICE_PATH mAcpiDeviceNodeTemplate = {
|
|
|
+ { // Header
|
|
|
+ ACPI_DEVICE_PATH,
|
|
|
+ ACPI_DP,
|
|
|
+ {
|
|
|
+ (UINT8) (sizeof (ACPI_HID_DEVICE_PATH)),
|
|
|
+ (UINT8) ((sizeof (ACPI_HID_DEVICE_PATH)) >> 8)
|
|
|
+ }
|
|
|
+ },
|
|
|
+ 0x0, // HID
|
|
|
+ 0x0 // UID
|
|
|
+};
|
|
|
+
|
|
|
+/**
|
|
|
+ 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
|
|
|
+ )
|
|
|
+{
|
|
|
+ return EFI_SUCCESS;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ 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.
|
|
|
+
|
|
|
+ @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 *SioDevice;
|
|
|
+
|
|
|
+ if (ResourceList == NULL) {
|
|
|
+ return EFI_INVALID_PARAMETER;
|
|
|
+ }
|
|
|
+
|
|
|
+ SioDevice = SIO_DEV_FROM_SIO (This);
|
|
|
+ if (SioDevice->DeviceIndex < ARRAY_SIZE (mDevicesInfo)) {
|
|
|
+ *ResourceList = mDevicesInfo[SioDevice->DeviceIndex].Resources;
|
|
|
+ }
|
|
|
+
|
|
|
+ return EFI_SUCCESS;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ 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.
|
|
|
+
|
|
|
+ @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
|
|
|
+ )
|
|
|
+{
|
|
|
+ return EFI_SUCCESS;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ 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
|
|
|
+ )
|
|
|
+{
|
|
|
+ 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.
|
|
|
+ @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
|
|
|
+ )
|
|
|
+{
|
|
|
+ return EFI_SUCCESS;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ Create the child device with a given device index.
|
|
|
+
|
|
|
+ @param[in] This The EFI_DRIVER_BINDING_PROTOCOL instance.
|
|
|
+ @param[in] Controller The handle of ISA bus controller.
|
|
|
+ @param[in] PciIo The pointer to the PCI protocol.
|
|
|
+ @param[in] ParentDevicePath Device path of the ISA bus controller.
|
|
|
+ @param[in] DeviceIndex Index of the device supported by this driver.
|
|
|
+
|
|
|
+ @retval EFI_SUCCESS The child device has been created successfully.
|
|
|
+ @retval Others Error occurred during the child device creation.
|
|
|
+
|
|
|
+**/
|
|
|
+EFI_STATUS
|
|
|
+SioCreateChildDevice (
|
|
|
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
|
+ IN EFI_HANDLE Controller,
|
|
|
+ IN EFI_PCI_IO_PROTOCOL *PciIo,
|
|
|
+ IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,
|
|
|
+ IN UINT32 DeviceIndex
|
|
|
+ )
|
|
|
+{
|
|
|
+ EFI_STATUS Status;
|
|
|
+ SIO_DEV *SioDevice;
|
|
|
+
|
|
|
+ //
|
|
|
+ // Initialize the SIO_DEV structure
|
|
|
+ //
|
|
|
+ SioDevice = AllocateZeroPool (sizeof (SIO_DEV));
|
|
|
+ if (SioDevice == NULL) {
|
|
|
+ DEBUG ((DEBUG_ERROR, "SioCreateChildDevice(): Can not allocate SIO Device structure\n"));
|
|
|
+ return EFI_OUT_OF_RESOURCES;
|
|
|
+ }
|
|
|
+
|
|
|
+ SioDevice->Signature = SIO_DEV_SIGNATURE;
|
|
|
+ SioDevice->Handle = NULL;
|
|
|
+ SioDevice->PciIo = PciIo;
|
|
|
+ CopyMem (&SioDevice->Sio, &mSioInterface, sizeof (EFI_SIO_PROTOCOL));
|
|
|
+ SioDevice->DeviceIndex = DeviceIndex;
|
|
|
+
|
|
|
+ //
|
|
|
+ // Construct the child device path
|
|
|
+ //
|
|
|
+ mAcpiDeviceNodeTemplate.HID = mDevicesInfo[DeviceIndex].Hid;
|
|
|
+ mAcpiDeviceNodeTemplate.UID = mDevicesInfo[DeviceIndex].Uid;
|
|
|
+ SioDevice->DevicePath = AppendDevicePathNode (
|
|
|
+ ParentDevicePath,
|
|
|
+ (EFI_DEVICE_PATH_PROTOCOL *) &mAcpiDeviceNodeTemplate
|
|
|
+ );
|
|
|
+ if (SioDevice->DevicePath == NULL) {
|
|
|
+ DEBUG ((DEBUG_ERROR, "SioCreateChildDevice(): Can not allocate SIO Device path\n"));
|
|
|
+ Status = EFI_OUT_OF_RESOURCES;
|
|
|
+ goto Done;
|
|
|
+ }
|
|
|
+
|
|
|
+ //
|
|
|
+ // Create a child handle and install Device Path and Super I/O protocols
|
|
|
+ //
|
|
|
+ Status = gBS->InstallMultipleProtocolInterfaces (
|
|
|
+ &SioDevice->Handle,
|
|
|
+ &gEfiDevicePathProtocolGuid,
|
|
|
+ SioDevice->DevicePath,
|
|
|
+ &gEfiSioProtocolGuid,
|
|
|
+ &SioDevice->Sio,
|
|
|
+ NULL
|
|
|
+ );
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ DEBUG ((DEBUG_ERROR, "SioCreateChildDevice(): Can not install child protocols %r\n", Status));
|
|
|
+ goto Done;
|
|
|
+ }
|
|
|
+
|
|
|
+ Status = gBS->OpenProtocol (
|
|
|
+ Controller,
|
|
|
+ &gEfiPciIoProtocolGuid,
|
|
|
+ (VOID **) &PciIo,
|
|
|
+ This->DriverBindingHandle,
|
|
|
+ SioDevice->Handle,
|
|
|
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
|
|
|
+ );
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ DEBUG ((DEBUG_ERROR, "SioCreateChildDevice(): Can not open parent PCI I/O Protocol by child controller %r\n", Status));
|
|
|
+ gBS->UninstallMultipleProtocolInterfaces (
|
|
|
+ SioDevice->Handle,
|
|
|
+ &gEfiDevicePathProtocolGuid,
|
|
|
+ SioDevice->DevicePath,
|
|
|
+ &gEfiSioProtocolGuid,
|
|
|
+ &SioDevice->Sio,
|
|
|
+ NULL
|
|
|
+ );
|
|
|
+ }
|
|
|
+
|
|
|
+Done:
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ if (SioDevice->DevicePath != NULL) {
|
|
|
+ FreePool (SioDevice->DevicePath);
|
|
|
+ }
|
|
|
+ FreePool (SioDevice);
|
|
|
+ }
|
|
|
+
|
|
|
+ return Status;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ Create all the ISA child devices on the ISA bus controller (PCI to ISA
|
|
|
+ bridge).
|
|
|
+
|
|
|
+ @param[in] This The EFI_DRIVER_BINDING_PROTOCOL instance.
|
|
|
+ @param[in] Controller The handle of ISA bus controller.
|
|
|
+ @param[in] PciIo The pointer to the PCI protocol.
|
|
|
+ @param[in] ParentDevicePath Device path of the ISA bus controller.
|
|
|
+
|
|
|
+ @retval The number of child device that is successfully created.
|
|
|
+
|
|
|
+**/
|
|
|
+UINT32
|
|
|
+SioCreateAllChildDevices (
|
|
|
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
|
+ IN EFI_HANDLE Controller,
|
|
|
+ IN EFI_PCI_IO_PROTOCOL *PciIo,
|
|
|
+ IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath
|
|
|
+ )
|
|
|
+{
|
|
|
+ UINT32 Index;
|
|
|
+ UINT32 ChildDeviceNumber;
|
|
|
+ EFI_STATUS Status;
|
|
|
+
|
|
|
+ ChildDeviceNumber = 0;
|
|
|
+
|
|
|
+ for (Index = 0; Index < ARRAY_SIZE (mDevicesInfo); Index++) {
|
|
|
+ Status = SioCreateChildDevice (
|
|
|
+ This,
|
|
|
+ Controller,
|
|
|
+ PciIo,
|
|
|
+ ParentDevicePath,
|
|
|
+ Index
|
|
|
+ );
|
|
|
+ if (!EFI_ERROR (Status)) {
|
|
|
+ ChildDeviceNumber++;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return ChildDeviceNumber;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ Tests to see if this driver supports a given controller. If a child device is
|
|
|
+ provided, it further tests to see if this driver supports creating a handle
|
|
|
+ for the specified child device.
|
|
|
+
|
|
|
+ This function checks to see if the driver specified by This supports the
|
|
|
+ device specified by ControllerHandle. Drivers will typically use the device
|
|
|
+ path attached to ControllerHandle and/or the services from the bus I/O
|
|
|
+ abstraction attached to ControllerHandle to determine if the driver supports
|
|
|
+ ControllerHandle. This function may be called many times during platform
|
|
|
+ initialization. In order to reduce boot times, the tests performed by this
|
|
|
+ function must be very small, and take as little time as possible to execute.
|
|
|
+ This function must not change the state of any hardware devices, and this
|
|
|
+ function must be aware that the device specified by ControllerHandle may
|
|
|
+ already be managed by the same driver or a different driver. This function
|
|
|
+ must match its calls to AllocatePages() with FreePages(), AllocatePool() with
|
|
|
+ FreePool(), and OpenProtocol() with CloseProtocol(). Since ControllerHandle
|
|
|
+ may have been previously started by the same driver, if a protocol is already
|
|
|
+ in the opened state, then it must not be closed with CloseProtocol(). This is
|
|
|
+ required to guarantee the state of ControllerHandle is not modified by this
|
|
|
+ function.
|
|
|
+
|
|
|
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL
|
|
|
+ instance.
|
|
|
+ @param[in] ControllerHandle The handle of the controller to test. This
|
|
|
+ handle must support a protocol interface
|
|
|
+ that supplies an I/O abstraction to the
|
|
|
+ driver.
|
|
|
+ @param[in] RemainingDevicePath A pointer to the remaining portion of a
|
|
|
+ device path. This parameter is ignored by
|
|
|
+ device drivers, and is optional for bus
|
|
|
+ drivers. For bus drivers, if this parameter
|
|
|
+ is not NULL, then the bus driver must
|
|
|
+ determine if the bus controller specified by
|
|
|
+ ControllerHandle and the child controller
|
|
|
+ specified by RemainingDevicePath are both
|
|
|
+ supported by this bus driver.
|
|
|
+
|
|
|
+ @retval EFI_SUCCESS The device specified by ControllerHandle and
|
|
|
+ RemainingDevicePath is supported by the
|
|
|
+ driver specified by This.
|
|
|
+ @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
|
|
|
+ RemainingDevicePath is already being managed
|
|
|
+ by the driver specified by This.
|
|
|
+ @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
|
|
|
+ RemainingDevicePath is already being managed
|
|
|
+ by a different driver or an application that
|
|
|
+ requires exclusive access.
|
|
|
+ @retval EFI_UNSUPPORTED The device specified by ControllerHandle and
|
|
|
+ RemainingDevicePath is not supported by the
|
|
|
+ driver specified by This.
|
|
|
+
|
|
|
+**/
|
|
|
+EFI_STATUS
|
|
|
+EFIAPI
|
|
|
+PcuSioDriverBindingSupported (
|
|
|
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
|
+ IN EFI_HANDLE Controller,
|
|
|
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
|
|
|
+ )
|
|
|
+{
|
|
|
+ EFI_STATUS Status;
|
|
|
+ EFI_PCI_IO_PROTOCOL *PciIo;
|
|
|
+ PCI_TYPE00 Pci;
|
|
|
+
|
|
|
+ //
|
|
|
+ // Get PciIo protocol instance
|
|
|
+ //
|
|
|
+ Status = gBS->OpenProtocol (
|
|
|
+ Controller,
|
|
|
+ &gEfiPciIoProtocolGuid,
|
|
|
+ (VOID **)&PciIo,
|
|
|
+ This->DriverBindingHandle,
|
|
|
+ Controller,
|
|
|
+ EFI_OPEN_PROTOCOL_BY_DRIVER
|
|
|
+ );
|
|
|
+
|
|
|
+ if (EFI_ERROR(Status)) {
|
|
|
+ return Status;
|
|
|
+ }
|
|
|
+
|
|
|
+ Status = PciIo->Pci.Read (
|
|
|
+ PciIo,
|
|
|
+ EfiPciIoWidthUint32,
|
|
|
+ 0,
|
|
|
+ sizeof(Pci) / sizeof(UINT32),
|
|
|
+ &Pci
|
|
|
+ );
|
|
|
+
|
|
|
+ if (!EFI_ERROR (Status)) {
|
|
|
+ Status = EFI_UNSUPPORTED;
|
|
|
+ if ((Pci.Hdr.Command & 0x03) == 0x03) {
|
|
|
+ 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 && Pci.Hdr.DeviceId == 0x7110) {
|
|
|
+ Status = EFI_SUCCESS;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ gBS->CloseProtocol (
|
|
|
+ Controller,
|
|
|
+ &gEfiPciIoProtocolGuid,
|
|
|
+ This->DriverBindingHandle,
|
|
|
+ Controller
|
|
|
+ );
|
|
|
+
|
|
|
+ return Status;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ Starts a device controller or a bus controller.
|
|
|
+
|
|
|
+ The Start() function is designed to be invoked from the EFI boot service
|
|
|
+ ConnectController(). As a result, much of the error checking on the
|
|
|
+ parameters to Start() has been moved into this common boot service. It is
|
|
|
+ legal to call Start() from other locations, but the following calling
|
|
|
+ restrictions must be followed or the system behavior will not be
|
|
|
+ deterministic.
|
|
|
+ 1. ControllerHandle must be a valid EFI_HANDLE.
|
|
|
+ 2. If RemainingDevicePath is not NULL, then it must be a pointer to a
|
|
|
+ naturally aligned EFI_DEVICE_PATH_PROTOCOL.
|
|
|
+ 3. Prior to calling Start(), the Supported() function for the driver
|
|
|
+ specified by This must have been called with the same calling parameters,
|
|
|
+ and Supported() must have returned EFI_SUCCESS.
|
|
|
+
|
|
|
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL
|
|
|
+ instance.
|
|
|
+ @param[in] ControllerHandle The handle of the controller to start. This
|
|
|
+ handle must support a protocol interface
|
|
|
+ that supplies an I/O abstraction to the
|
|
|
+ driver.
|
|
|
+ @param[in] RemainingDevicePath A pointer to the remaining portion of a
|
|
|
+ device path. This parameter is ignored by
|
|
|
+ device drivers, and is optional for bus
|
|
|
+ drivers. For a bus driver, if this parameter
|
|
|
+ is NULL, then handles for all the children
|
|
|
+ of Controller are created by this driver. If
|
|
|
+ this parameter is not NULL and the first
|
|
|
+ Device Path Node is not the End of Device
|
|
|
+ Path Node, then only the handle for the
|
|
|
+ child device specified by the first Device
|
|
|
+ Path Node of RemainingDevicePath is created
|
|
|
+ by this driver. If the first Device Path
|
|
|
+ Node of RemainingDevicePath is the End of
|
|
|
+ Device Path Node, no child handle is created
|
|
|
+ by this driver.
|
|
|
+
|
|
|
+ @retval EFI_SUCCESS The device was started.
|
|
|
+ @retval EFI_DEVICE_ERROR The device could not be started due to a
|
|
|
+ device error.
|
|
|
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
|
|
|
+ lack of resources.
|
|
|
+ @retval Others The driver failed to start the device.
|
|
|
+
|
|
|
+**/
|
|
|
+EFI_STATUS
|
|
|
+EFIAPI
|
|
|
+PcuSioDriverBindingStart (
|
|
|
+ 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;
|
|
|
+ UINT64 Supports;
|
|
|
+ UINT64 OriginalAttributes;
|
|
|
+ UINT64 Attributes;
|
|
|
+ BOOLEAN Enabled;
|
|
|
+ SIO_BUS_DRIVER_PRIVATE_DATA *Private;
|
|
|
+ UINT32 ChildDeviceNumber;
|
|
|
+
|
|
|
+ Enabled = FALSE;
|
|
|
+ Supports = 0;
|
|
|
+ OriginalAttributes = 0;
|
|
|
+ Private = NULL;
|
|
|
+
|
|
|
+ //
|
|
|
+ // Open the PCI I/O Protocol Interface
|
|
|
+ //
|
|
|
+ PciIo = NULL;
|
|
|
+ Status = gBS->OpenProtocol (
|
|
|
+ Controller,
|
|
|
+ &gEfiPciIoProtocolGuid,
|
|
|
+ (VOID**) &PciIo,
|
|
|
+ This->DriverBindingHandle,
|
|
|
+ Controller,
|
|
|
+ EFI_OPEN_PROTOCOL_BY_DRIVER
|
|
|
+ );
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ DEBUG ((DEBUG_ERROR, "PcuSioDriverBindingStart(): No PCI I/O Protocol %r\n", Status));
|
|
|
+ return Status;
|
|
|
+ }
|
|
|
+
|
|
|
+ //
|
|
|
+ // Open Device Path Protocol
|
|
|
+ //
|
|
|
+ Status = gBS->OpenProtocol (
|
|
|
+ Controller,
|
|
|
+ &gEfiDevicePathProtocolGuid,
|
|
|
+ (VOID **) &ParentDevicePath,
|
|
|
+ This->DriverBindingHandle,
|
|
|
+ Controller,
|
|
|
+ EFI_OPEN_PROTOCOL_BY_DRIVER
|
|
|
+ );
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ DEBUG ((DEBUG_ERROR, "PcuSioDriverBindingStart(): No Device Path Protocol %r\n", Status));
|
|
|
+ gBS->CloseProtocol (
|
|
|
+ Controller,
|
|
|
+ &gEfiPciIoProtocolGuid,
|
|
|
+ This->DriverBindingHandle,
|
|
|
+ Controller
|
|
|
+ );
|
|
|
+ return Status;
|
|
|
+ }
|
|
|
+
|
|
|
+ //
|
|
|
+ // Get supported PCI attributes
|
|
|
+ //
|
|
|
+ Status = PciIo->Attributes (
|
|
|
+ PciIo,
|
|
|
+ EfiPciIoAttributeOperationSupported,
|
|
|
+ 0,
|
|
|
+ &Supports
|
|
|
+ );
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ DEBUG ((DEBUG_ERROR, "PcuSioDriverBindingStart(): Error reading PCI I/O Supported Attributes %r\n", Status));
|
|
|
+ goto Done;
|
|
|
+ }
|
|
|
+ Supports &= (UINT64) (EFI_PCI_IO_ATTRIBUTE_ISA_IO |
|
|
|
+ EFI_PCI_IO_ATTRIBUTE_ISA_IO_16);
|
|
|
+
|
|
|
+ Status = PciIo->Attributes (
|
|
|
+ PciIo,
|
|
|
+ EfiPciIoAttributeOperationGet,
|
|
|
+ 0,
|
|
|
+ &OriginalAttributes
|
|
|
+ );
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ DEBUG ((DEBUG_ERROR, "PcuSioDriverBindingStart(): Error reading PCI I/O Attributes %r\n", Status));
|
|
|
+ goto Done;
|
|
|
+ }
|
|
|
+
|
|
|
+ Attributes = EFI_PCI_DEVICE_ENABLE |
|
|
|
+ Supports |
|
|
|
+ EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO;
|
|
|
+
|
|
|
+ Status = PciIo->Attributes (
|
|
|
+ PciIo,
|
|
|
+ EfiPciIoAttributeOperationEnable,
|
|
|
+ Attributes,
|
|
|
+ NULL
|
|
|
+ );
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ DEBUG ((DEBUG_ERROR, "PcuSioDriverBindingStart(): Error enabling PCI I/O Attributes %r\n", Status));
|
|
|
+ goto Done;
|
|
|
+ }
|
|
|
+
|
|
|
+ Enabled = TRUE;
|
|
|
+
|
|
|
+ //
|
|
|
+ // Store the OriginalAttributes for the restore in BindingStop()
|
|
|
+ //
|
|
|
+ Private = AllocateZeroPool (sizeof (SIO_BUS_DRIVER_PRIVATE_DATA));
|
|
|
+ if (Private == NULL) {
|
|
|
+ Status = EFI_OUT_OF_RESOURCES;
|
|
|
+ DEBUG ((DEBUG_ERROR, "PcuSioDriverBindingStart(): Error allocating SIO private data structure %r\n", Status));
|
|
|
+ goto Done;
|
|
|
+ }
|
|
|
+ Private->PciIo = PciIo;
|
|
|
+ Private->OriginalAttributes = OriginalAttributes;
|
|
|
+
|
|
|
+ Status = gBS->InstallProtocolInterface (
|
|
|
+ &Controller,
|
|
|
+ &gEfiCallerIdGuid,
|
|
|
+ EFI_NATIVE_INTERFACE,
|
|
|
+ Private
|
|
|
+ );
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ DEBUG ((DEBUG_ERROR, "PcuSioDriverBindingStart(): Error installing gEfiCallerIdGuid %r\n", Status));
|
|
|
+ goto Done;
|
|
|
+ }
|
|
|
+
|
|
|
+ //
|
|
|
+ // Report status code for the start of general controller initialization
|
|
|
+ //
|
|
|
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (
|
|
|
+ EFI_PROGRESS_CODE,
|
|
|
+ (EFI_IO_BUS_LPC | EFI_IOB_PC_INIT),
|
|
|
+ ParentDevicePath
|
|
|
+ );
|
|
|
+
|
|
|
+ //
|
|
|
+ // Report status code for the start of enabling devices on the bus
|
|
|
+ //
|
|
|
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (
|
|
|
+ EFI_PROGRESS_CODE,
|
|
|
+ (EFI_IO_BUS_LPC | EFI_IOB_PC_ENABLE),
|
|
|
+ ParentDevicePath
|
|
|
+ );
|
|
|
+
|
|
|
+ //
|
|
|
+ // Create all the children upon the first entrance
|
|
|
+ //
|
|
|
+ ChildDeviceNumber = SioCreateAllChildDevices (
|
|
|
+ This,
|
|
|
+ Controller,
|
|
|
+ PciIo,
|
|
|
+ ParentDevicePath
|
|
|
+ );
|
|
|
+ if (ChildDeviceNumber == 0) {
|
|
|
+ Status = EFI_DEVICE_ERROR;
|
|
|
+ DEBUG ((DEBUG_ERROR, "PcuSioDriverBindingStart(): Error creating child SIO devices %r\n", Status));
|
|
|
+ goto Done;
|
|
|
+ }
|
|
|
+
|
|
|
+Done:
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ if (PciIo != NULL && Enabled) {
|
|
|
+ PciIo->Attributes (
|
|
|
+ PciIo,
|
|
|
+ EfiPciIoAttributeOperationSet,
|
|
|
+ OriginalAttributes,
|
|
|
+ NULL
|
|
|
+ );
|
|
|
+ }
|
|
|
+
|
|
|
+ gBS->CloseProtocol (
|
|
|
+ Controller,
|
|
|
+ &gEfiDevicePathProtocolGuid,
|
|
|
+ This->DriverBindingHandle,
|
|
|
+ Controller
|
|
|
+ );
|
|
|
+
|
|
|
+ gBS->CloseProtocol (
|
|
|
+ Controller,
|
|
|
+ &gEfiPciIoProtocolGuid,
|
|
|
+ This->DriverBindingHandle,
|
|
|
+ Controller
|
|
|
+ );
|
|
|
+
|
|
|
+ if (Private != NULL) {
|
|
|
+ gBS->UninstallMultipleProtocolInterfaces (
|
|
|
+ Controller,
|
|
|
+ &gEfiCallerIdGuid,
|
|
|
+ Private,
|
|
|
+ NULL
|
|
|
+ );
|
|
|
+ FreePool (Private);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return Status;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ Stops a device controller or a bus controller.
|
|
|
+
|
|
|
+ The Stop() function is designed to be invoked from the EFI boot service
|
|
|
+ DisconnectController(). As a result, much of the error checking on the
|
|
|
+ parameters to Stop() has been moved into this common boot service. It is
|
|
|
+ legal to call Stop() from other locations, but the following calling
|
|
|
+ restrictions must be followed or the system behavior will not be
|
|
|
+ deterministic.
|
|
|
+ 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous
|
|
|
+ call to this same driver's Start() function.
|
|
|
+ 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a
|
|
|
+ valid EFI_HANDLE. In addition, all of these handles must have been created
|
|
|
+ in this driver's Start() function, and the Start() function must have
|
|
|
+ called OpenProtocol() on ControllerHandle with an Attribute of
|
|
|
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
|
|
|
+
|
|
|
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL
|
|
|
+ instance.
|
|
|
+ @param[in] ControllerHandle A handle to the device being stopped. The
|
|
|
+ handle must support a bus specific I/O
|
|
|
+ protocol for the driver to use to stop the
|
|
|
+ device.
|
|
|
+ @param[in] NumberOfChildren The number of child device handles in
|
|
|
+ ChildHandleBuffer.
|
|
|
+ @param[in] ChildHandleBuffer An array of child handles to be freed. May be
|
|
|
+ NULL if NumberOfChildren is 0.
|
|
|
+
|
|
|
+ @retval EFI_SUCCESS The device was stopped.
|
|
|
+ @retval EFI_DEVICE_ERROR The device could not be stopped due to a
|
|
|
+ device error.
|
|
|
+
|
|
|
+**/
|
|
|
+EFI_STATUS
|
|
|
+EFIAPI
|
|
|
+PcuSioDriverBindingStop (
|
|
|
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
|
+ IN EFI_HANDLE Controller,
|
|
|
+ IN UINTN NumberOfChildren,
|
|
|
+ IN EFI_HANDLE *ChildHandleBuffer
|
|
|
+ )
|
|
|
+{
|
|
|
+ EFI_STATUS Status;
|
|
|
+ SIO_BUS_DRIVER_PRIVATE_DATA *Private;
|
|
|
+ UINTN Index;
|
|
|
+ BOOLEAN AllChildrenStopped;
|
|
|
+ EFI_SIO_PROTOCOL *Sio;
|
|
|
+ SIO_DEV *SioDevice;
|
|
|
+ EFI_PCI_IO_PROTOCOL *PciIo;
|
|
|
+
|
|
|
+ if (NumberOfChildren == 0) {
|
|
|
+ //
|
|
|
+ // Restore PCI attributes
|
|
|
+ //
|
|
|
+ Status = gBS->OpenProtocol (
|
|
|
+ Controller,
|
|
|
+ &gEfiCallerIdGuid,
|
|
|
+ (VOID **) &Private,
|
|
|
+ This->DriverBindingHandle,
|
|
|
+ Controller,
|
|
|
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
|
|
|
+ );
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ return Status;
|
|
|
+ }
|
|
|
+
|
|
|
+ Status = Private->PciIo->Attributes (
|
|
|
+ Private->PciIo,
|
|
|
+ EfiPciIoAttributeOperationSet,
|
|
|
+ Private->OriginalAttributes,
|
|
|
+ NULL
|
|
|
+ );
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ return Status;
|
|
|
+ }
|
|
|
+
|
|
|
+ gBS->UninstallProtocolInterface (
|
|
|
+ Controller,
|
|
|
+ &gEfiCallerIdGuid,
|
|
|
+ Private
|
|
|
+ );
|
|
|
+ FreePool (Private);
|
|
|
+
|
|
|
+ //
|
|
|
+ // Close the bus driver
|
|
|
+ //
|
|
|
+ Status = gBS->CloseProtocol (
|
|
|
+ Controller,
|
|
|
+ &gEfiDevicePathProtocolGuid,
|
|
|
+ This->DriverBindingHandle,
|
|
|
+ Controller
|
|
|
+ );
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ return Status;
|
|
|
+ }
|
|
|
+
|
|
|
+ Status = gBS->CloseProtocol (
|
|
|
+ Controller,
|
|
|
+ &gEfiPciIoProtocolGuid,
|
|
|
+ This->DriverBindingHandle,
|
|
|
+ Controller
|
|
|
+ );
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ return Status;
|
|
|
+ }
|
|
|
+
|
|
|
+ return EFI_SUCCESS;
|
|
|
+ }
|
|
|
+
|
|
|
+ //
|
|
|
+ // Stop all the children
|
|
|
+ //
|
|
|
+ AllChildrenStopped = TRUE;
|
|
|
+
|
|
|
+ for (Index = 0; Index < NumberOfChildren; Index++) {
|
|
|
+ Status = gBS->OpenProtocol (
|
|
|
+ ChildHandleBuffer[Index],
|
|
|
+ &gEfiSioProtocolGuid,
|
|
|
+ (VOID **) &Sio,
|
|
|
+ This->DriverBindingHandle,
|
|
|
+ Controller,
|
|
|
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
|
|
|
+ );
|
|
|
+ if (!EFI_ERROR (Status)) {
|
|
|
+ SioDevice = SIO_DEV_FROM_SIO (Sio);
|
|
|
+
|
|
|
+ //
|
|
|
+ // Close the child handle
|
|
|
+ //
|
|
|
+ Status = gBS->CloseProtocol (
|
|
|
+ Controller,
|
|
|
+ &gEfiPciIoProtocolGuid,
|
|
|
+ This->DriverBindingHandle,
|
|
|
+ ChildHandleBuffer[Index]
|
|
|
+ );
|
|
|
+ Status = gBS->UninstallMultipleProtocolInterfaces (
|
|
|
+ ChildHandleBuffer[Index],
|
|
|
+ &gEfiDevicePathProtocolGuid,
|
|
|
+ SioDevice->DevicePath,
|
|
|
+ &gEfiSioProtocolGuid,
|
|
|
+ &SioDevice->Sio,
|
|
|
+ NULL
|
|
|
+ );
|
|
|
+
|
|
|
+ if (!EFI_ERROR (Status)) {
|
|
|
+ FreePool (SioDevice->DevicePath);
|
|
|
+ FreePool (SioDevice);
|
|
|
+ } else {
|
|
|
+ //
|
|
|
+ // Re-open PCI IO Protocol on behalf of the child device
|
|
|
+ // because of failure of destroying the child device handle
|
|
|
+ //
|
|
|
+ gBS->OpenProtocol (
|
|
|
+ Controller,
|
|
|
+ &gEfiPciIoProtocolGuid,
|
|
|
+ (VOID **) &PciIo,
|
|
|
+ This->DriverBindingHandle,
|
|
|
+ ChildHandleBuffer[Index],
|
|
|
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
|
|
|
+ );
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (EFI_ERROR (Status)) {
|
|
|
+ AllChildrenStopped = FALSE;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!AllChildrenStopped) {
|
|
|
+ return EFI_DEVICE_ERROR;
|
|
|
+ }
|
|
|
+
|
|
|
+ return EFI_SUCCESS;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ The entry point for the PCU SIO driver.
|
|
|
+
|
|
|
+ @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
|
|
|
+PcuSioDriverEntryPoint (
|
|
|
+ IN EFI_HANDLE ImageHandle,
|
|
|
+ IN EFI_SYSTEM_TABLE *SystemTable
|
|
|
+ )
|
|
|
+{
|
|
|
+ return EfiLibInstallDriverBinding (
|
|
|
+ ImageHandle,
|
|
|
+ SystemTable,
|
|
|
+ &gPcuSioDriverBinding,
|
|
|
+ ImageHandle
|
|
|
+ );
|
|
|
+}
|