| /** @file | |
| This file implement UEFI driver for IDE Bus which includes device identification, | |
| Child device(Disk, CDROM, etc) enumeration and child handler installation, and | |
| driver stop. | |
| Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR> | |
| This program and the accompanying materials | |
| are licensed and made available under the terms and conditions of the BSD License | |
| which accompanies this distribution. The full text of the license may be found at | |
| http://opensource.org/licenses/bsd-license.php | |
| THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
| WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
| @par Revision Reference: | |
| This module is modified from DXE\IDE module for Ide Contriller Init support | |
| **/ | |
| #include "IdeBus.h" | |
| #define PCI_CLASS_MASS_STORAGE 0x01 | |
| #define PCI_SUB_CLASS_IDE 0x01 | |
| // | |
| // IDE Bus Driver Binding Protocol Instance | |
| // | |
| EFI_DRIVER_BINDING_PROTOCOL gIDEBusDriverBinding = { | |
| IDEBusDriverBindingSupported, | |
| IDEBusDriverBindingStart, | |
| IDEBusDriverBindingStop, | |
| 0xa, | |
| NULL, | |
| NULL | |
| }; | |
| /** | |
| Deregister an IDE device and free resources | |
| @param This Protocol instance pointer. | |
| @param Controller Ide device handle | |
| @param Handle Handle of device to deregister driver on | |
| @retval EFI_SUCCESS Deregiter a specific IDE device successfully | |
| **/ | |
| EFI_STATUS | |
| DeRegisterIdeDevice ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE Controller, | |
| IN EFI_HANDLE Handle | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| EFI_BLOCK_IO_PROTOCOL *BlkIo; | |
| IDE_BLK_IO_DEV *IdeBlkIoDevice; | |
| EFI_PCI_IO_PROTOCOL *PciIo; | |
| UINTN Index; | |
| Status = gBS->OpenProtocol ( | |
| Handle, | |
| &gEfiBlockIoProtocolGuid, | |
| (VOID **) &BlkIo, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_GET_PROTOCOL | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| return Status; | |
| } | |
| IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (BlkIo); | |
| // | |
| // Report Status code: Device disabled | |
| // | |
| REPORT_STATUS_CODE_WITH_DEVICE_PATH ( | |
| EFI_PROGRESS_CODE, | |
| (EFI_IO_BUS_ATA_ATAPI | EFI_P_PC_DISABLE), | |
| IdeBlkIoDevice->DevicePath | |
| ); | |
| // | |
| // Close the child handle | |
| // | |
| Status = gBS->CloseProtocol ( | |
| Controller, | |
| &gEfiPciIoProtocolGuid, | |
| This->DriverBindingHandle, | |
| Handle | |
| ); | |
| Status = gBS->UninstallMultipleProtocolInterfaces ( | |
| Handle, | |
| &gEfiDevicePathProtocolGuid, | |
| IdeBlkIoDevice->DevicePath, | |
| &gEfiBlockIoProtocolGuid, | |
| &IdeBlkIoDevice->BlkIo, | |
| &gEfiDiskInfoProtocolGuid, | |
| &IdeBlkIoDevice->DiskInfo, | |
| NULL | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiPciIoProtocolGuid, | |
| (VOID **) &PciIo, | |
| This->DriverBindingHandle, | |
| Handle, | |
| EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER | |
| ); | |
| return Status; | |
| } | |
| // | |
| // Release allocated resources | |
| // | |
| Index = IdeBlkIoDevice->Channel * 2 + IdeBlkIoDevice->Device; | |
| if (Index < MAX_IDE_DEVICE) { | |
| IdeBlkIoDevice->IdeBusDriverPrivateData->HaveScannedDevice[Index] = FALSE; | |
| } | |
| ReleaseIdeResources (IdeBlkIoDevice); | |
| return EFI_SUCCESS; | |
| } | |
| /** | |
| Supported function of Driver Binding protocol for this driver. | |
| @param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. | |
| @param ControllerHandle The handle of the controller to test. | |
| @param RemainingDevicePath A pointer to the remaining portion of a device path. | |
| @retval EFI_SUCCESS Driver loaded. | |
| @retval other Driver not loaded. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| IDEBusDriverBindingSupported ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE Controller, | |
| IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath; | |
| EFI_DEV_PATH *Node; | |
| EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeInit; | |
| EFI_PCI_IO_PROTOCOL *PciIo; | |
| PCI_TYPE00 PciData; | |
| if (RemainingDevicePath != NULL) { | |
| Node = (EFI_DEV_PATH *) RemainingDevicePath; | |
| // | |
| // Check if RemainingDevicePath is the End of Device Path Node, | |
| // if yes, go on checking other conditions | |
| // | |
| if (!IsDevicePathEnd (Node)) { | |
| // | |
| // If RemainingDevicePath isn't the End of Device Path Node, | |
| // check its validation | |
| // | |
| if (Node->DevPath.Type != MESSAGING_DEVICE_PATH || | |
| Node->DevPath.SubType != MSG_ATAPI_DP || | |
| DevicePathNodeLength(&Node->DevPath) != sizeof(ATAPI_DEVICE_PATH)) { | |
| return EFI_UNSUPPORTED; | |
| } | |
| } | |
| } | |
| // | |
| // Verify the Ide Controller Init Protocol, which installed by the | |
| // IdeController module. | |
| // | |
| Status = gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiIdeControllerInitProtocolGuid, | |
| (VOID **) &IdeInit, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_BY_DRIVER | |
| ); | |
| if (Status == EFI_ALREADY_STARTED) { | |
| return EFI_SUCCESS; | |
| } | |
| if (EFI_ERROR (Status)) { | |
| return Status; | |
| } | |
| // | |
| // Close the I/O Abstraction(s) used to perform the supported test | |
| // | |
| gBS->CloseProtocol ( | |
| Controller, | |
| &gEfiIdeControllerInitProtocolGuid, | |
| This->DriverBindingHandle, | |
| Controller | |
| ); | |
| // | |
| // Open the EFI Device Path protocol needed to perform the supported test | |
| // | |
| Status = gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiDevicePathProtocolGuid, | |
| (VOID **) &ParentDevicePath, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_BY_DRIVER | |
| ); | |
| if (Status == EFI_ALREADY_STARTED) { | |
| return EFI_SUCCESS; | |
| } | |
| // | |
| // Close protocol, don't use device path protocol in the Support() function | |
| // | |
| gBS->CloseProtocol ( | |
| Controller, | |
| &gEfiDevicePathProtocolGuid, | |
| This->DriverBindingHandle, | |
| Controller | |
| ); | |
| // | |
| // Get the EfiPciIoProtocol | |
| // | |
| Status = gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiPciIoProtocolGuid, | |
| (VOID **) &PciIo, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_GET_PROTOCOL | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| return Status; | |
| } | |
| // | |
| // Now further check the PCI header: Base class (offset 0x0B) and | |
| // Sub Class (offset 0x0A). This controller should be an IDE controller | |
| // | |
| Status = PciIo->Pci.Read ( | |
| PciIo, | |
| EfiPciIoWidthUint8, | |
| 0, | |
| sizeof (PciData), | |
| &PciData | |
| ); | |
| if (!EFI_ERROR (Status)) { | |
| // | |
| // Examine if it is IDE mode by class code | |
| // | |
| if ((PciData.Hdr.ClassCode[2] != PCI_CLASS_MASS_STORAGE) || (PciData.Hdr.ClassCode[1] != PCI_SUB_CLASS_IDE)) { | |
| Status = EFI_UNSUPPORTED; | |
| } else { | |
| Status = EFI_SUCCESS; | |
| } | |
| } | |
| return Status; | |
| } | |
| /** | |
| Start function of Driver binding protocol which start this driver on Controller | |
| by detecting all disks and installing BlockIo protocol on them. | |
| @param This Protocol instance pointer. | |
| @param Controller Handle of device to bind driver to. | |
| @param RemainingDevicePath produce all possible children. | |
| @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 | |
| IDEBusDriverBindingStart ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE Controller, | |
| IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| EFI_STATUS SavedStatus; | |
| EFI_PCI_IO_PROTOCOL *PciIo; | |
| EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath; | |
| EFI_DEV_PATH *Node; | |
| UINT8 IdeChannel; | |
| UINT8 BeginningIdeChannel; | |
| UINT8 EndIdeChannel; | |
| UINT8 IdeDevice; | |
| UINT8 BeginningIdeDevice; | |
| UINT8 EndIdeDevice; | |
| IDE_BLK_IO_DEV *IdeBlkIoDevice[IdeMaxChannel][IdeMaxDevice]; | |
| IDE_BLK_IO_DEV *IdeBlkIoDevicePtr; | |
| IDE_REGISTERS_BASE_ADDR IdeRegsBaseAddr[IdeMaxChannel]; | |
| ATA_TRANSFER_MODE TransferMode; | |
| ATA_DRIVE_PARMS DriveParameters; | |
| EFI_DEV_PATH NewNode; | |
| UINT8 ConfigurationOptions; | |
| UINT16 CommandBlockBaseAddr; | |
| UINT16 ControlBlockBaseAddr; | |
| UINTN DataSize; | |
| IDE_BUS_DRIVER_PRIVATE_DATA *IdeBusDriverPrivateData; | |
| UINT64 Supports; | |
| // | |
| // Local variables declaration for IdeControllerInit support | |
| // | |
| EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeInit; | |
| BOOLEAN EnumAll; | |
| BOOLEAN ChannelEnabled; | |
| UINT8 MaxDevices; | |
| EFI_IDENTIFY_DATA IdentifyData; | |
| EFI_ATA_COLLECTIVE_MODE *SupportedModes; | |
| IdeBusDriverPrivateData = NULL; | |
| SupportedModes = NULL; | |
| // | |
| // Perform IdeBus initialization | |
| // | |
| 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; | |
| } | |
| // | |
| // Now open the IDE_CONTROLLER_INIT protocol. Step7.1 | |
| // | |
| Status = gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiIdeControllerInitProtocolGuid, | |
| (VOID **) &IdeInit, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_BY_DRIVER | |
| ); | |
| // | |
| // The following OpenProtocol function with _GET_PROTOCOL attribute and | |
| // will not return EFI_ALREADY_STARTED, so save it for now | |
| // | |
| SavedStatus = Status; | |
| if ((EFI_ERROR (Status)) && (Status != EFI_ALREADY_STARTED)) { | |
| DEBUG ((EFI_D_ERROR, "Open Init, Status=%x", Status)); | |
| // | |
| // open protocol is not SUCCESS or not ALREADY_STARTED, error exit | |
| // | |
| goto ErrorExit; | |
| } | |
| // | |
| // Save Enumall. Step7.2 | |
| // | |
| EnumAll = IdeInit->EnumAll; | |
| // | |
| // Consume PCI I/O protocol. Note that the OpenProtocol with _GET_PROTOCOL | |
| // attribute will not return EFI_ALREADY_STARTED | |
| // | |
| Status = gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiPciIoProtocolGuid, | |
| (VOID **) &PciIo, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_GET_PROTOCOL | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| DEBUG ((EFI_D_ERROR, "Open PciIo, Status=%x", Status)); | |
| goto ErrorExit; | |
| } | |
| // | |
| // We must check EFI_ALREADY_STARTED because many ATAPI devices are removable | |
| // | |
| if (SavedStatus != EFI_ALREADY_STARTED) { | |
| IdeBusDriverPrivateData = AllocatePool (sizeof (IDE_BUS_DRIVER_PRIVATE_DATA)); | |
| if (IdeBusDriverPrivateData == NULL) { | |
| Status = EFI_OUT_OF_RESOURCES; | |
| goto ErrorExit; | |
| } | |
| ZeroMem (IdeBusDriverPrivateData, sizeof (IDE_BUS_DRIVER_PRIVATE_DATA)); | |
| Status = gBS->InstallMultipleProtocolInterfaces ( | |
| &Controller, | |
| &gEfiCallerIdGuid, | |
| IdeBusDriverPrivateData, | |
| NULL | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| goto ErrorExit; | |
| } | |
| } else { | |
| Status = gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiCallerIdGuid, | |
| (VOID **) &IdeBusDriverPrivateData, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_GET_PROTOCOL | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| IdeBusDriverPrivateData = NULL; | |
| goto ErrorExit; | |
| } | |
| } | |
| Status = PciIo->Attributes ( | |
| PciIo, | |
| EfiPciIoAttributeOperationSupported, | |
| 0, | |
| &Supports | |
| ); | |
| if (!EFI_ERROR (Status)) { | |
| Supports &= (UINT64)EFI_PCI_DEVICE_ENABLE; | |
| Status = PciIo->Attributes ( | |
| PciIo, | |
| EfiPciIoAttributeOperationEnable, | |
| Supports, | |
| NULL | |
| ); | |
| } | |
| if (EFI_ERROR (Status)) { | |
| goto ErrorExit; | |
| } | |
| // | |
| // Read the environment variable that contains the IDEBus Driver's | |
| // Config options that were set by the Driver Configuration Protocol | |
| // | |
| DataSize = sizeof (ConfigurationOptions); | |
| Status = gRT->GetVariable ( | |
| (CHAR16 *) L"Configuration", | |
| &gEfiCallerIdGuid, | |
| NULL, | |
| &DataSize, | |
| &ConfigurationOptions | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| ConfigurationOptions = 0x0f; | |
| } | |
| if (EnumAll || RemainingDevicePath == NULL) { | |
| // | |
| // If IdeInit->EnumAll is TRUE or RemainingDevicePath is NULL, | |
| // must enumerate all IDE devices anyway | |
| // | |
| BeginningIdeChannel = IdePrimary; | |
| EndIdeChannel = IdeSecondary; | |
| BeginningIdeDevice = IdeMaster; | |
| EndIdeDevice = IdeSlave; | |
| } else if (!IsDevicePathEnd (RemainingDevicePath)) { | |
| // | |
| // If RemainingDevicePath isn't the End of Device Path Node, | |
| // only scan the specified device by RemainingDevicePath | |
| // | |
| Node = (EFI_DEV_PATH *) RemainingDevicePath; | |
| BeginningIdeChannel = Node->Atapi.PrimarySecondary; | |
| EndIdeChannel = BeginningIdeChannel; | |
| BeginningIdeDevice = Node->Atapi.SlaveMaster; | |
| EndIdeDevice = BeginningIdeDevice; | |
| if (BeginningIdeChannel >= IdeMaxChannel || EndIdeChannel >= IdeMaxChannel) { | |
| Status = EFI_INVALID_PARAMETER; | |
| goto ErrorExit; | |
| } | |
| if (BeginningIdeDevice >= IdeMaxDevice|| EndIdeDevice >= IdeMaxDevice) { | |
| Status = EFI_INVALID_PARAMETER; | |
| goto ErrorExit; | |
| } | |
| } else { | |
| // | |
| // If RemainingDevicePath is the End of Device Path Node, | |
| // skip enumerate any device and return EFI_SUCESSS | |
| // | |
| BeginningIdeChannel = IdeMaxChannel; | |
| EndIdeChannel = IdeMaxChannel - 1; | |
| BeginningIdeDevice = IdeMaxDevice; | |
| EndIdeDevice = IdeMaxDevice - 1; | |
| } | |
| // | |
| // Obtain IDE IO port registers' base addresses | |
| // | |
| Status = GetIdeRegistersBaseAddr (PciIo, IdeRegsBaseAddr); | |
| if (EFI_ERROR (Status)) { | |
| goto ErrorExit; | |
| } | |
| // | |
| // Report status code: begin IdeBus initialization | |
| // | |
| REPORT_STATUS_CODE_WITH_DEVICE_PATH ( | |
| EFI_PROGRESS_CODE, | |
| (EFI_IO_BUS_ATA_ATAPI | EFI_IOB_PC_RESET), | |
| ParentDevicePath | |
| ); | |
| // | |
| // Strictly follow the enumeration based on IDE_CONTROLLER_INIT protocol | |
| // | |
| for (IdeChannel = BeginningIdeChannel; IdeChannel <= EndIdeChannel; IdeChannel++) { | |
| IdeInit->NotifyPhase (IdeInit, EfiIdeBeforeChannelEnumeration, IdeChannel); | |
| // | |
| // now obtain channel information fron IdeControllerInit protocol. Step9 | |
| // | |
| Status = IdeInit->GetChannelInfo ( | |
| IdeInit, | |
| IdeChannel, | |
| &ChannelEnabled, | |
| &MaxDevices | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| DEBUG ((EFI_D_ERROR, "[GetChannel, Status=%x]", Status)); | |
| continue; | |
| } | |
| if (!ChannelEnabled) { | |
| continue; | |
| } | |
| EndIdeDevice = (UINT8) MIN ((MaxDevices - 1), EndIdeDevice); | |
| ASSERT (EndIdeDevice < IdeMaxDevice); | |
| // | |
| // Now inform the IDE Controller Init Module. Sept10 | |
| // | |
| IdeInit->NotifyPhase (IdeInit, EfiIdeBeforeChannelReset, IdeChannel); | |
| // | |
| // No reset channel function implemented. Sept11 | |
| // | |
| IdeInit->NotifyPhase (IdeInit, EfiIdeAfterChannelReset, IdeChannel); | |
| // | |
| // Step13 | |
| // | |
| IdeInit->NotifyPhase ( | |
| IdeInit, | |
| EfiIdeBusBeforeDevicePresenceDetection, | |
| IdeChannel | |
| ); | |
| // | |
| // Prepare to detect IDE device of this channel | |
| // | |
| InitializeIDEChannelData (); | |
| // | |
| // -- 1st inner loop --- Master/Slave ------------ Step14 | |
| // | |
| for (IdeDevice = BeginningIdeDevice; IdeDevice <= EndIdeDevice; IdeDevice++) { | |
| // | |
| // Check whether the configuration options allow this device | |
| // | |
| if ((ConfigurationOptions & (1 << (IdeChannel * 2 + IdeDevice))) == 0) { | |
| continue; | |
| } | |
| // | |
| // The device has been scanned in another Start(), No need to scan it again | |
| // for perf optimization. | |
| // | |
| if (IdeBusDriverPrivateData->HaveScannedDevice[IdeChannel * 2 + IdeDevice]) { | |
| continue; | |
| } | |
| // | |
| // create child handle for the detected device. | |
| // | |
| IdeBlkIoDevice[IdeChannel][IdeDevice] = AllocatePool (sizeof (IDE_BLK_IO_DEV)); | |
| if (IdeBlkIoDevice[IdeChannel][IdeDevice] == NULL) { | |
| continue; | |
| } | |
| IdeBlkIoDevicePtr = IdeBlkIoDevice[IdeChannel][IdeDevice]; | |
| ZeroMem (IdeBlkIoDevicePtr, sizeof (IDE_BLK_IO_DEV)); | |
| IdeBlkIoDevicePtr->Signature = IDE_BLK_IO_DEV_SIGNATURE; | |
| IdeBlkIoDevicePtr->Channel = (EFI_IDE_CHANNEL) IdeChannel; | |
| IdeBlkIoDevicePtr->Device = (EFI_IDE_DEVICE) IdeDevice; | |
| // | |
| // initialize Block IO interface's Media pointer | |
| // | |
| IdeBlkIoDevicePtr->BlkIo.Media = &IdeBlkIoDevicePtr->BlkMedia; | |
| // | |
| // Initialize IDE IO port addresses, including Command Block registers | |
| // and Control Block registers | |
| // | |
| IdeBlkIoDevicePtr->IoPort = AllocatePool (sizeof (IDE_BASE_REGISTERS)); | |
| if (IdeBlkIoDevicePtr->IoPort == NULL) { | |
| continue; | |
| } | |
| ZeroMem (IdeBlkIoDevicePtr->IoPort, sizeof (IDE_BASE_REGISTERS)); | |
| CommandBlockBaseAddr = IdeRegsBaseAddr[IdeChannel].CommandBlockBaseAddr; | |
| ControlBlockBaseAddr = IdeRegsBaseAddr[IdeChannel].ControlBlockBaseAddr; | |
| IdeBlkIoDevicePtr->IoPort->Data = CommandBlockBaseAddr; | |
| (*(UINT16 *) &IdeBlkIoDevicePtr->IoPort->Reg1) = (UINT16) (CommandBlockBaseAddr + 0x01); | |
| IdeBlkIoDevicePtr->IoPort->SectorCount = (UINT16) (CommandBlockBaseAddr + 0x02); | |
| IdeBlkIoDevicePtr->IoPort->SectorNumber = (UINT16) (CommandBlockBaseAddr + 0x03); | |
| IdeBlkIoDevicePtr->IoPort->CylinderLsb = (UINT16) (CommandBlockBaseAddr + 0x04); | |
| IdeBlkIoDevicePtr->IoPort->CylinderMsb = (UINT16) (CommandBlockBaseAddr + 0x05); | |
| IdeBlkIoDevicePtr->IoPort->Head = (UINT16) (CommandBlockBaseAddr + 0x06); | |
| (*(UINT16 *) &IdeBlkIoDevicePtr->IoPort->Reg) = (UINT16) (CommandBlockBaseAddr + 0x07); | |
| (*(UINT16 *) &IdeBlkIoDevicePtr->IoPort->Alt) = ControlBlockBaseAddr; | |
| IdeBlkIoDevicePtr->IoPort->DriveAddress = (UINT16) (ControlBlockBaseAddr + 0x01); | |
| IdeBlkIoDevicePtr->IoPort->MasterSlave = (UINT16) ((IdeDevice == IdeMaster) ? 1 : 0); | |
| IdeBlkIoDevicePtr->PciIo = PciIo; | |
| IdeBlkIoDevicePtr->IdeBusDriverPrivateData = IdeBusDriverPrivateData; | |
| IdeBlkIoDevicePtr->IoPort->BusMasterBaseAddr = IdeRegsBaseAddr[IdeChannel].BusMasterBaseAddr; | |
| // | |
| // Report Status code: is about to detect IDE drive | |
| // | |
| REPORT_STATUS_CODE_EX ( | |
| EFI_PROGRESS_CODE, | |
| (EFI_IO_BUS_ATA_ATAPI | EFI_P_PC_PRESENCE_DETECT), | |
| 0, | |
| &gEfiCallerIdGuid, | |
| NULL, | |
| NULL, | |
| 0 | |
| ); | |
| // | |
| // Discover device, now! | |
| // | |
| PERF_START (NULL, "DiscoverIdeDevice", "IDE", 0); | |
| Status = DiscoverIdeDevice (IdeBlkIoDevicePtr); | |
| PERF_END (NULL, "DiscoverIdeDevice", "IDE", 0); | |
| IdeBusDriverPrivateData->HaveScannedDevice[IdeChannel * 2 + IdeDevice] = TRUE; | |
| IdeBusDriverPrivateData->DeviceProcessed[IdeChannel * 2 + IdeDevice] = FALSE; | |
| if (!EFI_ERROR (Status)) { | |
| // | |
| // Set Device Path | |
| // | |
| ZeroMem (&NewNode, sizeof (NewNode)); | |
| NewNode.DevPath.Type = MESSAGING_DEVICE_PATH; | |
| NewNode.DevPath.SubType = MSG_ATAPI_DP; | |
| SetDevicePathNodeLength (&NewNode.DevPath, sizeof (ATAPI_DEVICE_PATH)); | |
| NewNode.Atapi.PrimarySecondary = (UINT8) IdeBlkIoDevicePtr->Channel; | |
| NewNode.Atapi.SlaveMaster = (UINT8) IdeBlkIoDevicePtr->Device; | |
| NewNode.Atapi.Lun = IdeBlkIoDevicePtr->Lun; | |
| IdeBlkIoDevicePtr->DevicePath = AppendDevicePathNode ( | |
| ParentDevicePath, | |
| &NewNode.DevPath | |
| ); | |
| if (IdeBlkIoDevicePtr->DevicePath == NULL) { | |
| ReleaseIdeResources (IdeBlkIoDevicePtr); | |
| continue; | |
| } | |
| // | |
| // Submit identify data to IDE controller init driver | |
| // | |
| CopyMem (&IdentifyData, IdeBlkIoDevicePtr->IdData, sizeof (IdentifyData)); | |
| IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = TRUE; | |
| IdeInit->SubmitData (IdeInit, IdeChannel, IdeDevice, &IdentifyData); | |
| } else { | |
| // | |
| // Device detection failed | |
| // | |
| IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = FALSE; | |
| IdeInit->SubmitData (IdeInit, IdeChannel, IdeDevice, NULL); | |
| ReleaseIdeResources (IdeBlkIoDevicePtr); | |
| IdeBlkIoDevicePtr = NULL; | |
| } | |
| // | |
| // end of 1st inner loop --- | |
| // | |
| } | |
| // | |
| // end of 1st outer loop ========= | |
| // | |
| } | |
| // | |
| // = 2nd outer loop == Primary/Secondary ================= | |
| // | |
| for (IdeChannel = BeginningIdeChannel; IdeChannel <= EndIdeChannel; IdeChannel++) { | |
| // | |
| // -- 2nd inner loop --- Master/Slave -------- | |
| // | |
| for (IdeDevice = BeginningIdeDevice; IdeDevice <= EndIdeDevice; IdeDevice++) { | |
| ASSERT (IdeChannel * 2 + IdeDevice < MAX_IDE_DEVICE); | |
| if (IdeBusDriverPrivateData->DeviceProcessed[IdeChannel * 2 + IdeDevice]) { | |
| continue; | |
| } | |
| if (!IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice]) { | |
| continue; | |
| } | |
| Status = IdeInit->CalculateMode ( | |
| IdeInit, | |
| IdeChannel, | |
| IdeDevice, | |
| &SupportedModes | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| DEBUG ((EFI_D_ERROR, "[bStStp20S=%x]", Status)); | |
| continue; | |
| } | |
| ASSERT (IdeChannel < IdeMaxChannel && IdeDevice < IdeMaxDevice); | |
| IdeBlkIoDevicePtr = IdeBlkIoDevice[IdeChannel][IdeDevice]; | |
| // | |
| // Set best supported PIO mode on this IDE device | |
| // | |
| if (SupportedModes->PioMode.Mode <= AtaPioMode2) { | |
| TransferMode.ModeCategory = ATA_MODE_CATEGORY_DEFAULT_PIO; | |
| } else { | |
| TransferMode.ModeCategory = ATA_MODE_CATEGORY_FLOW_PIO; | |
| } | |
| TransferMode.ModeNumber = (UINT8) (SupportedModes->PioMode.Mode); | |
| if (SupportedModes->ExtModeCount == 0){ | |
| Status = SetDeviceTransferMode (IdeBlkIoDevicePtr, &TransferMode); | |
| if (EFI_ERROR (Status)) { | |
| IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = FALSE; | |
| ReleaseIdeResources (IdeBlkIoDevicePtr); | |
| IdeBlkIoDevicePtr = NULL; | |
| continue; | |
| } | |
| } | |
| // | |
| // Set supported DMA mode on this IDE device. Note that UDMA & MDMA cann't | |
| // be set together. Only one DMA mode can be set to a device. If setting | |
| // DMA mode operation fails, we can continue moving on because we only use | |
| // PIO mode at boot time. DMA modes are used by certain kind of OS booting | |
| // | |
| if (SupportedModes->UdmaMode.Valid) { | |
| TransferMode.ModeCategory = ATA_MODE_CATEGORY_UDMA; | |
| TransferMode.ModeNumber = (UINT8) (SupportedModes->UdmaMode.Mode); | |
| Status = SetDeviceTransferMode (IdeBlkIoDevicePtr, &TransferMode); | |
| if (EFI_ERROR (Status)) { | |
| IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = FALSE; | |
| ReleaseIdeResources (IdeBlkIoDevicePtr); | |
| IdeBlkIoDevicePtr = NULL; | |
| continue; | |
| } | |
| // | |
| // Record Udma Mode | |
| // | |
| IdeBlkIoDevicePtr->UdmaMode.Valid = TRUE; | |
| IdeBlkIoDevicePtr->UdmaMode.Mode = SupportedModes->UdmaMode.Mode; | |
| EnableInterrupt (IdeBlkIoDevicePtr); | |
| } else if (SupportedModes->MultiWordDmaMode.Valid) { | |
| TransferMode.ModeCategory = ATA_MODE_CATEGORY_MDMA; | |
| TransferMode.ModeNumber = (UINT8) SupportedModes->MultiWordDmaMode.Mode; | |
| Status = SetDeviceTransferMode (IdeBlkIoDevicePtr, &TransferMode); | |
| if (EFI_ERROR (Status)) { | |
| IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = FALSE; | |
| ReleaseIdeResources (IdeBlkIoDevicePtr); | |
| IdeBlkIoDevicePtr = NULL; | |
| continue; | |
| } | |
| EnableInterrupt (IdeBlkIoDevicePtr); | |
| } | |
| // | |
| // Init driver parameters | |
| // | |
| DriveParameters.Sector = (UINT8) ((ATA5_IDENTIFY_DATA *) IdeBlkIoDevicePtr->IdData)->sectors_per_track; | |
| DriveParameters.Heads = (UINT8) (((ATA5_IDENTIFY_DATA *) IdeBlkIoDevicePtr->IdData)->heads - 1); | |
| DriveParameters.MultipleSector = (UINT8) IdeBlkIoDevicePtr->IdData->AtaData.multi_sector_cmd_max_sct_cnt; | |
| // | |
| // Set Parameters for the device: | |
| // 1) Init | |
| // 2) Establish the block count for READ/WRITE MULTIPLE (EXT) command | |
| // | |
| if ((IdeBlkIoDevicePtr->Type == IdeHardDisk) || (IdeBlkIoDevicePtr->Type == Ide48bitAddressingHardDisk)) { | |
| Status = SetDriveParameters (IdeBlkIoDevicePtr, &DriveParameters); | |
| } | |
| // | |
| // Record PIO mode used in private data | |
| // | |
| IdeBlkIoDevicePtr->PioMode = (ATA_PIO_MODE) SupportedModes->PioMode.Mode; | |
| // | |
| // Set IDE controller Timing Blocks in the PCI Configuration Space | |
| // | |
| IdeInit->SetTiming (IdeInit, IdeChannel, IdeDevice, SupportedModes); | |
| // | |
| // Add Component Name for the IDE/ATAPI device that was discovered. | |
| // | |
| IdeBlkIoDevicePtr->ControllerNameTable = NULL; | |
| ADD_IDE_ATAPI_NAME (IdeBlkIoDevicePtr); | |
| Status = gBS->InstallMultipleProtocolInterfaces ( | |
| &IdeBlkIoDevicePtr->Handle, | |
| &gEfiDevicePathProtocolGuid, | |
| IdeBlkIoDevicePtr->DevicePath, | |
| &gEfiBlockIoProtocolGuid, | |
| &IdeBlkIoDevicePtr->BlkIo, | |
| &gEfiDiskInfoProtocolGuid, | |
| &IdeBlkIoDevicePtr->DiskInfo, | |
| NULL | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| ReleaseIdeResources (IdeBlkIoDevicePtr); | |
| } | |
| gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiPciIoProtocolGuid, | |
| (VOID **) &PciIo, | |
| This->DriverBindingHandle, | |
| IdeBlkIoDevicePtr->Handle, | |
| EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER | |
| ); | |
| IdeBusDriverPrivateData->DeviceProcessed[IdeChannel * 2 + IdeDevice] = TRUE; | |
| // | |
| // Report status code: device eanbled! | |
| // | |
| REPORT_STATUS_CODE_WITH_DEVICE_PATH ( | |
| EFI_PROGRESS_CODE, | |
| (EFI_IO_BUS_ATA_ATAPI | EFI_P_PC_ENABLE), | |
| IdeBlkIoDevicePtr->DevicePath | |
| ); | |
| // | |
| // Create event to clear pending IDE interrupt | |
| // | |
| Status = gBS->CreateEventEx ( | |
| EVT_NOTIFY_SIGNAL, | |
| TPL_NOTIFY, | |
| ClearInterrupt, | |
| IdeBlkIoDevicePtr, | |
| &gEfiEventExitBootServicesGuid, | |
| &IdeBlkIoDevicePtr->ExitBootServiceEvent | |
| ); | |
| // | |
| // end of 2nd inner loop ---- | |
| // | |
| } | |
| // | |
| // end of 2nd outer loop ========== | |
| // | |
| } | |
| // | |
| // All configurations done! Notify IdeController to do post initialization | |
| // work such as saving IDE controller PCI settings for S3 resume | |
| // | |
| IdeInit->NotifyPhase (IdeInit, EfiIdeBusPhaseMaximum, 0); | |
| if (SupportedModes != NULL) { | |
| FreePool (SupportedModes); | |
| } | |
| PERF_START (NULL, "Finish IDE detection", "IDE", 1); | |
| PERF_END (NULL, "Finish IDE detection", "IDE", 0); | |
| return EFI_SUCCESS; | |
| ErrorExit: | |
| // | |
| // Report error code: controller error | |
| // | |
| REPORT_STATUS_CODE_WITH_DEVICE_PATH ( | |
| EFI_ERROR_CODE | EFI_ERROR_MINOR, | |
| (EFI_IO_BUS_ATA_ATAPI | EFI_IOB_EC_CONTROLLER_ERROR), | |
| ParentDevicePath | |
| ); | |
| gBS->CloseProtocol ( | |
| Controller, | |
| &gEfiIdeControllerInitProtocolGuid, | |
| This->DriverBindingHandle, | |
| Controller | |
| ); | |
| gBS->UninstallMultipleProtocolInterfaces ( | |
| Controller, | |
| &gEfiCallerIdGuid, | |
| IdeBusDriverPrivateData, | |
| NULL | |
| ); | |
| if (IdeBusDriverPrivateData != NULL) { | |
| gBS->FreePool (IdeBusDriverPrivateData); | |
| } | |
| if (SupportedModes != NULL) { | |
| gBS->FreePool (SupportedModes); | |
| } | |
| gBS->CloseProtocol ( | |
| Controller, | |
| &gEfiPciIoProtocolGuid, | |
| This->DriverBindingHandle, | |
| Controller | |
| ); | |
| gBS->CloseProtocol ( | |
| Controller, | |
| &gEfiDevicePathProtocolGuid, | |
| This->DriverBindingHandle, | |
| Controller | |
| ); | |
| return Status; | |
| } | |
| /** | |
| Stop function of Driver Binding Protocol which is to stop the driver on Controller Handle and all | |
| child handle attached to the controller handle if there are. | |
| @param This Protocol instance pointer. | |
| @param Controller Handle of device to stop driver on | |
| @param NumberOfChildren Not used | |
| @param ChildHandleBuffer Not used | |
| @retval EFI_SUCCESS This driver is removed DeviceHandle | |
| @retval other This driver was not removed from this device | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| IDEBusDriverBindingStop ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE Controller, | |
| IN UINTN NumberOfChildren, | |
| IN EFI_HANDLE *ChildHandleBuffer | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| EFI_PCI_IO_PROTOCOL *PciIo; | |
| BOOLEAN AllChildrenStopped; | |
| UINTN Index; | |
| IDE_BUS_DRIVER_PRIVATE_DATA *IdeBusDriverPrivateData; | |
| UINT64 Supports; | |
| IdeBusDriverPrivateData = NULL; | |
| if (NumberOfChildren == 0) { | |
| Status = gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiPciIoProtocolGuid, | |
| (VOID **) &PciIo, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_GET_PROTOCOL | |
| ); | |
| if (!EFI_ERROR (Status)) { | |
| Status = PciIo->Attributes ( | |
| PciIo, | |
| EfiPciIoAttributeOperationSupported, | |
| 0, | |
| &Supports | |
| ); | |
| if (!EFI_ERROR (Status)) { | |
| Supports &= (UINT64)(EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO | EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO | EFI_PCI_DEVICE_ENABLE); | |
| PciIo->Attributes ( | |
| PciIo, | |
| EfiPciIoAttributeOperationDisable, | |
| Supports, | |
| NULL | |
| ); | |
| } | |
| } | |
| gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiCallerIdGuid, | |
| (VOID **) &IdeBusDriverPrivateData, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_GET_PROTOCOL | |
| ); | |
| gBS->UninstallMultipleProtocolInterfaces ( | |
| Controller, | |
| &gEfiCallerIdGuid, | |
| IdeBusDriverPrivateData, | |
| NULL | |
| ); | |
| if (IdeBusDriverPrivateData != NULL) { | |
| gBS->FreePool (IdeBusDriverPrivateData); | |
| } | |
| // | |
| // Close the bus driver | |
| // | |
| gBS->CloseProtocol ( | |
| Controller, | |
| &gEfiIdeControllerInitProtocolGuid, | |
| This->DriverBindingHandle, | |
| Controller | |
| ); | |
| gBS->CloseProtocol ( | |
| Controller, | |
| &gEfiPciIoProtocolGuid, | |
| This->DriverBindingHandle, | |
| Controller | |
| ); | |
| gBS->CloseProtocol ( | |
| Controller, | |
| &gEfiDevicePathProtocolGuid, | |
| This->DriverBindingHandle, | |
| Controller | |
| ); | |
| return EFI_SUCCESS; | |
| } | |
| AllChildrenStopped = TRUE; | |
| for (Index = 0; Index < NumberOfChildren; Index++) { | |
| Status = DeRegisterIdeDevice (This, Controller, ChildHandleBuffer[Index]); | |
| if (EFI_ERROR (Status)) { | |
| AllChildrenStopped = FALSE; | |
| } | |
| } | |
| if (!AllChildrenStopped) { | |
| return EFI_DEVICE_ERROR; | |
| } | |
| return EFI_SUCCESS; | |
| } | |
| /** | |
| issue ATA or ATAPI command to reset a block IO device. | |
| @param This Block IO protocol instance pointer. | |
| @param ExtendedVerification If FALSE,for ATAPI device, driver will only invoke ATAPI reset method | |
| If TRUE, for ATAPI device, driver need invoke ATA reset method after | |
| invoke ATAPI reset method | |
| @retval EFI_DEVICE_ERROR When the device is neighther ATA device or ATAPI device. | |
| @retval EFI_SUCCESS The device reset successfully | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| IDEBlkIoReset ( | |
| IN EFI_BLOCK_IO_PROTOCOL *This, | |
| IN BOOLEAN ExtendedVerification | |
| ) | |
| { | |
| IDE_BLK_IO_DEV *IdeBlkIoDevice; | |
| EFI_STATUS Status; | |
| EFI_TPL OldTpl; | |
| OldTpl = gBS->RaiseTPL (TPL_CALLBACK); | |
| IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (This); | |
| // | |
| // Requery IDE IO resources in case of the switch of native and legacy modes | |
| // | |
| ReassignIdeResources (IdeBlkIoDevice); | |
| // | |
| // for ATA device, using ATA reset method | |
| // | |
| if (IdeBlkIoDevice->Type == IdeHardDisk || | |
| IdeBlkIoDevice->Type == Ide48bitAddressingHardDisk) { | |
| Status = AtaSoftReset (IdeBlkIoDevice); | |
| goto Done; | |
| } | |
| if (IdeBlkIoDevice->Type == IdeUnknown) { | |
| Status = EFI_DEVICE_ERROR; | |
| goto Done; | |
| } | |
| // | |
| // for ATAPI device, using ATAPI reset method | |
| // | |
| Status = AtapiSoftReset (IdeBlkIoDevice); | |
| if (ExtendedVerification) { | |
| Status = AtaSoftReset (IdeBlkIoDevice); | |
| } | |
| Done: | |
| gBS->RestoreTPL (OldTpl); | |
| return Status; | |
| } | |
| /** | |
| Read data from a block IO device | |
| @param This Block IO protocol instance pointer. | |
| @param MediaId The media ID of the device | |
| @param Lba Starting LBA address to read data | |
| @param BufferSize The size of data to be read | |
| @param Buffer Caller supplied buffer to save data | |
| @retval EFI_DEVICE_ERROR unknown device type | |
| @retval other read data status. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| IDEBlkIoReadBlocks ( | |
| IN EFI_BLOCK_IO_PROTOCOL *This, | |
| IN UINT32 MediaId, | |
| IN EFI_LBA Lba, | |
| IN UINTN BufferSize, | |
| OUT VOID *Buffer | |
| ) | |
| { | |
| IDE_BLK_IO_DEV *IdeBlkIoDevice; | |
| EFI_STATUS Status; | |
| EFI_TPL OldTpl; | |
| OldTpl = gBS->RaiseTPL (TPL_CALLBACK); | |
| IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (This); | |
| // | |
| // Requery IDE IO resources in case of the switch of native and legacy modes | |
| // | |
| ReassignIdeResources (IdeBlkIoDevice); | |
| // | |
| // For ATA compatible device, use ATA read block's mechanism | |
| // | |
| if (IdeBlkIoDevice->Type == IdeHardDisk || | |
| IdeBlkIoDevice->Type == Ide48bitAddressingHardDisk) { | |
| Status = AtaBlkIoReadBlocks ( | |
| IdeBlkIoDevice, | |
| MediaId, | |
| Lba, | |
| BufferSize, | |
| Buffer | |
| ); | |
| goto Done; | |
| } | |
| if (IdeBlkIoDevice->Type == IdeUnknown) { | |
| Status = EFI_DEVICE_ERROR; | |
| goto Done; | |
| } | |
| // | |
| // for ATAPI device, using ATAPI read block's mechanism | |
| // | |
| Status = AtapiBlkIoReadBlocks ( | |
| IdeBlkIoDevice, | |
| MediaId, | |
| Lba, | |
| BufferSize, | |
| Buffer | |
| ); | |
| Done: | |
| gBS->RestoreTPL (OldTpl); | |
| return Status; | |
| } | |
| /** | |
| Write data to block io device. | |
| @param This Protocol instance pointer. | |
| @param MediaId The media ID of the device | |
| @param Lba Starting LBA address to write data | |
| @param BufferSize The size of data to be written | |
| @param Buffer Caller supplied buffer to save data | |
| @retval EFI_DEVICE_ERROR unknown device type | |
| @retval other write data status | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| IDEBlkIoWriteBlocks ( | |
| IN EFI_BLOCK_IO_PROTOCOL *This, | |
| IN UINT32 MediaId, | |
| IN EFI_LBA Lba, | |
| IN UINTN BufferSize, | |
| IN VOID *Buffer | |
| ) | |
| { | |
| IDE_BLK_IO_DEV *IdeBlkIoDevice; | |
| EFI_STATUS Status; | |
| EFI_TPL OldTpl; | |
| OldTpl = gBS->RaiseTPL (TPL_CALLBACK); | |
| IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (This); | |
| // | |
| // Requery IDE IO resources in case of the switch of native and legacy modes | |
| // | |
| ReassignIdeResources (IdeBlkIoDevice); | |
| // | |
| // for ATA device, using ATA write block's mechanism | |
| // | |
| if (IdeBlkIoDevice->Type == IdeHardDisk || | |
| IdeBlkIoDevice->Type == Ide48bitAddressingHardDisk) { | |
| Status = AtaBlkIoWriteBlocks ( | |
| IdeBlkIoDevice, | |
| MediaId, | |
| Lba, | |
| BufferSize, | |
| Buffer | |
| ); | |
| goto Done; | |
| } | |
| if (IdeBlkIoDevice->Type == IdeUnknown) { | |
| Status = EFI_DEVICE_ERROR; | |
| goto Done; | |
| } | |
| // | |
| // for ATAPI device, using ATAPI write block's mechanism | |
| // | |
| Status = AtapiBlkIoWriteBlocks ( | |
| IdeBlkIoDevice, | |
| MediaId, | |
| Lba, | |
| BufferSize, | |
| Buffer | |
| ); | |
| Done: | |
| gBS->RestoreTPL (OldTpl); | |
| return Status; | |
| } | |
| /** | |
| Flushes all modified data to a physical block devices | |
| @param This Indicates a pointer to the calling context which to sepcify a | |
| sepcific block device | |
| @retval EFI_SUCCESS Always return success. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| IDEBlkIoFlushBlocks ( | |
| IN EFI_BLOCK_IO_PROTOCOL *This | |
| ) | |
| { | |
| // | |
| // return directly | |
| // | |
| return EFI_SUCCESS; | |
| } | |
| /** | |
| This function is used by the IDE bus driver to get inquiry data. | |
| Data format of Identify data is defined by the Interface GUID. | |
| @param This Pointer to the EFI_DISK_INFO_PROTOCOL instance. | |
| @param InquiryData Pointer to a buffer for the inquiry data. | |
| @param InquiryDataSize Pointer to the value for the inquiry data size. | |
| @retval EFI_SUCCESS The command was accepted without any errors. | |
| @retval EFI_NOT_FOUND Device does not support this data class | |
| @retval EFI_DEVICE_ERROR Error reading InquiryData from device | |
| @retval EFI_BUFFER_TOO_SMALL IntquiryDataSize not big enough | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| IDEDiskInfoInquiry ( | |
| IN EFI_DISK_INFO_PROTOCOL *This, | |
| IN OUT VOID *InquiryData, | |
| IN OUT UINT32 *InquiryDataSize | |
| ) | |
| { | |
| IDE_BLK_IO_DEV *IdeBlkIoDevice; | |
| IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_DISK_INFO_THIS (This); | |
| if (*InquiryDataSize < sizeof (ATAPI_INQUIRY_DATA)) { | |
| *InquiryDataSize = sizeof (ATAPI_INQUIRY_DATA); | |
| return EFI_BUFFER_TOO_SMALL; | |
| } | |
| if (IdeBlkIoDevice->InquiryData == NULL) { | |
| return EFI_NOT_FOUND; | |
| } | |
| gBS->CopyMem (InquiryData, IdeBlkIoDevice->InquiryData, sizeof (ATAPI_INQUIRY_DATA)); | |
| *InquiryDataSize = sizeof (ATAPI_INQUIRY_DATA); | |
| return EFI_SUCCESS; | |
| } | |
| /** | |
| This function is used by the IDE bus driver to get identify data. | |
| Data format of Identify data is defined by the Interface GUID. | |
| @param This Pointer to the EFI_DISK_INFO_PROTOCOL instance. | |
| @param IdentifyData Pointer to a buffer for the identify data. | |
| @param IdentifyDataSize Pointer to the value for the identify data size. | |
| @retval EFI_SUCCESS The command was accepted without any errors. | |
| @retval EFI_NOT_FOUND Device does not support this data class | |
| @retval EFI_DEVICE_ERROR Error reading IdentifyData from device | |
| @retval EFI_BUFFER_TOO_SMALL IdentifyDataSize not big enough | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| IDEDiskInfoIdentify ( | |
| IN EFI_DISK_INFO_PROTOCOL *This, | |
| IN OUT VOID *IdentifyData, | |
| IN OUT UINT32 *IdentifyDataSize | |
| ) | |
| { | |
| IDE_BLK_IO_DEV *IdeBlkIoDevice; | |
| IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_DISK_INFO_THIS (This); | |
| if (*IdentifyDataSize < sizeof (EFI_IDENTIFY_DATA)) { | |
| *IdentifyDataSize = sizeof (EFI_IDENTIFY_DATA); | |
| return EFI_BUFFER_TOO_SMALL; | |
| } | |
| if (IdeBlkIoDevice->IdData == NULL) { | |
| return EFI_NOT_FOUND; | |
| } | |
| gBS->CopyMem (IdentifyData, IdeBlkIoDevice->IdData, sizeof (EFI_IDENTIFY_DATA)); | |
| *IdentifyDataSize = sizeof (EFI_IDENTIFY_DATA); | |
| return EFI_SUCCESS; | |
| } | |
| /** | |
| This function is used by the IDE bus driver to get sense data. | |
| Data format of Sense data is defined by the Interface GUID. | |
| @param This Pointer to the EFI_DISK_INFO_PROTOCOL instance. | |
| @param SenseData Pointer to the SenseData. | |
| @param SenseDataSize Size of SenseData in bytes. | |
| @param SenseDataNumber Pointer to the value for the identify data size. | |
| @retval EFI_SUCCESS The command was accepted without any errors. | |
| @retval EFI_NOT_FOUND Device does not support this data class | |
| @retval EFI_DEVICE_ERROR Error reading InquiryData from device | |
| @retval EFI_BUFFER_TOO_SMALL SenseDataSize not big enough | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| IDEDiskInfoSenseData ( | |
| IN EFI_DISK_INFO_PROTOCOL *This, | |
| IN OUT VOID *SenseData, | |
| IN OUT UINT32 *SenseDataSize, | |
| OUT UINT8 *SenseDataNumber | |
| ) | |
| { | |
| return EFI_NOT_FOUND; | |
| } | |
| /** | |
| This function is used by the IDE bus driver to get controller information. | |
| @param This Pointer to the EFI_DISK_INFO_PROTOCOL instance. | |
| @param IdeChannel Pointer to the Ide Channel number. Primary or secondary. | |
| @param IdeDevice Pointer to the Ide Device number. Master or slave. | |
| @retval EFI_SUCCESS IdeChannel and IdeDevice are valid | |
| @retval EFI_UNSUPPORTED This is not an IDE device | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| IDEDiskInfoWhichIde ( | |
| IN EFI_DISK_INFO_PROTOCOL *This, | |
| OUT UINT32 *IdeChannel, | |
| OUT UINT32 *IdeDevice | |
| ) | |
| { | |
| IDE_BLK_IO_DEV *IdeBlkIoDevice; | |
| IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_DISK_INFO_THIS (This); | |
| *IdeChannel = IdeBlkIoDevice->Channel; | |
| *IdeDevice = IdeBlkIoDevice->Device; | |
| return EFI_SUCCESS; | |
| } | |
| /** | |
| The is an event(generally the event is exitBootService event) call back function. | |
| Clear pending IDE interrupt before OS loader/kernel take control of the IDE device. | |
| @param Event Pointer to this event | |
| @param Context Event handler private data | |
| **/ | |
| VOID | |
| EFIAPI | |
| ClearInterrupt ( | |
| IN EFI_EVENT Event, | |
| IN VOID *Context | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| UINT64 IoPortForBmis; | |
| UINT8 RegisterValue; | |
| IDE_BLK_IO_DEV *IdeDev; | |
| // | |
| // Get our context | |
| // | |
| IdeDev = (IDE_BLK_IO_DEV *) Context; | |
| // | |
| // Obtain IDE IO port registers' base addresses | |
| // | |
| Status = ReassignIdeResources (IdeDev); | |
| if (EFI_ERROR (Status)) { | |
| return; | |
| } | |
| // | |
| // Check whether interrupt is pending | |
| // | |
| // | |
| // Reset IDE device to force it de-assert interrupt pin | |
| // Note: this will reset all devices on this IDE channel | |
| // | |
| Status = AtaSoftReset (IdeDev); | |
| if (EFI_ERROR (Status)) { | |
| return; | |
| } | |
| // | |
| // Get base address of IDE Bus Master Status Regsiter | |
| // | |
| if (IdePrimary == IdeDev->Channel) { | |
| IoPortForBmis = IdeDev->IoPort->BusMasterBaseAddr + BMISP_OFFSET; | |
| } else { | |
| if (IdeSecondary == IdeDev->Channel) { | |
| IoPortForBmis = IdeDev->IoPort->BusMasterBaseAddr + BMISS_OFFSET; | |
| } else { | |
| return; | |
| } | |
| } | |
| // | |
| // Read BMIS register and clear ERROR and INTR bit | |
| // | |
| IdeDev->PciIo->Io.Read ( | |
| IdeDev->PciIo, | |
| EfiPciIoWidthUint8, | |
| EFI_PCI_IO_PASS_THROUGH_BAR, | |
| IoPortForBmis, | |
| 1, | |
| &RegisterValue | |
| ); | |
| RegisterValue |= (BMIS_INTERRUPT | BMIS_ERROR); | |
| IdeDev->PciIo->Io.Write ( | |
| IdeDev->PciIo, | |
| EfiPciIoWidthUint8, | |
| EFI_PCI_IO_PASS_THROUGH_BAR, | |
| IoPortForBmis, | |
| 1, | |
| &RegisterValue | |
| ); | |
| // | |
| // Select the other device on this channel to ensure this device to release the interrupt pin | |
| // | |
| if (IdeDev->Device == 0) { | |
| RegisterValue = (1 << 4) | 0xe0; | |
| } else { | |
| RegisterValue = (0 << 4) | 0xe0; | |
| } | |
| IDEWritePortB ( | |
| IdeDev->PciIo, | |
| IdeDev->IoPort->Head, | |
| RegisterValue | |
| ); | |
| } | |
| /** | |
| The user Entry Point for module IdeBus. 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 | |
| InitializeIdeBus( | |
| IN EFI_HANDLE ImageHandle, | |
| IN EFI_SYSTEM_TABLE *SystemTable | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| // | |
| // Install driver model protocol(s). | |
| // | |
| Status = EfiLibInstallAllDriverProtocols2 ( | |
| ImageHandle, | |
| SystemTable, | |
| &gIDEBusDriverBinding, | |
| ImageHandle, | |
| &gIDEBusComponentName, | |
| &gIDEBusComponentName2, | |
| NULL, | |
| NULL, | |
| &gIDEBusDriverDiagnostics, | |
| &gIDEBusDriverDiagnostics2 | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| return Status; | |
| } |