| /** @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 - 2008, Intel Corporation |
| All rights reserved. This program and the accompanying materials |
| are licensed and made available under the terms and conditions of the BSD License |
| which accompanies this distribution. The full text of the license may be found at |
| http://opensource.org/licenses/bsd-license.php |
| |
| THE PROGRAM IS DISTRIBUTED UNDER THE BSD 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; |
| |
| if (RemainingDevicePath != NULL) { |
| Node = (EFI_DEV_PATH *) RemainingDevicePath; |
| if (Node->DevPath.Type != MESSAGING_DEVICE_PATH || |
| Node->DevPath.SubType != MSG_ATAPI_DP || |
| DevicePathNodeLength(&Node->DevPath) != sizeof(ATAPI_DEVICE_PATH)) { |
| return EFI_UNSUPPORTED; |
| } |
| } |
| |
| // |
| // Open the IO Abstraction(s) 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; |
| } |
| |
| if (EFI_ERROR (Status)) { |
| return Status; |
| } |
| |
| // |
| // Close protocol, don't use device path protocol in the .Support() function |
| // |
| gBS->CloseProtocol ( |
| Controller, |
| &gEfiDevicePathProtocolGuid, |
| This->DriverBindingHandle, |
| Controller |
| ); |
| |
| // |
| // Verify the Ide Controller Init Protocol, which installed by the |
| // IdeController module. |
| // Note 1: PciIo protocol has been opened BY_DRIVER by ide_init, so We can't |
| // open BY_DRIVER here) That's why we don't check pciio protocol |
| // Note 2: ide_init driver check ide controller's pci config space, so we dont |
| // check here any more to save code size |
| // |
| Status = gBS->OpenProtocol ( |
| Controller, |
| &gEfiIdeControllerInitProtocolGuid, |
| (VOID **) &IdeInit, |
| This->DriverBindingHandle, |
| Controller, |
| EFI_OPEN_PROTOCOL_BY_DRIVER |
| ); |
| |
| if (Status == EFI_ALREADY_STARTED) { |
| return EFI_SUCCESS; |
| } |
| |
| // |
| // If protocols were opened normally, closed it |
| // |
| gBS->CloseProtocol ( |
| Controller, |
| &gEfiIdeControllerInitProtocolGuid, |
| This->DriverBindingHandle, |
| Controller |
| ); |
| |
| 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 &= 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) { |
| // |
| // If IdeInit->EnumAll is TRUE, must enumerate all IDE device anyway |
| // |
| BeginningIdeChannel = IdePrimary; |
| EndIdeChannel = IdeSecondary; |
| BeginningIdeDevice = IdeMaster; |
| EndIdeDevice = IdeSlave; |
| } else if (RemainingDevicePath == NULL) { |
| // |
| // RemainingDevicePath is NULL, scan IDE bus for each device; |
| // |
| BeginningIdeChannel = IdePrimary; |
| EndIdeChannel = IdeSecondary; |
| BeginningIdeDevice = IdeMaster; |
| // |
| // default, may be redefined by IdeInit |
| // |
| EndIdeDevice = IdeSlave; |
| } else { |
| // |
| // RemainingDevicePath is not NULL, only scan the specified device. |
| // |
| 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; |
| } |
| } |
| |
| // |
| // 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++) { |
| |
| 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; |
| } |
| |
| 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) IdeBlkIoDevicePtr->IdData->AtaData.sectors_per_track; |
| DriveParameters.Heads = (UINT8) (IdeBlkIoDevicePtr->IdData->AtaData.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) { |
| gBS->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 &= 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 hanlder 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 |
| // |
| 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; |
| } |
