| /** @file | |
| The SdDxe driver is used to manage the SD memory card device. | |
| It produces BlockIo and BlockIo2 protocols to allow upper layer | |
| access the SD memory card device. | |
| Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR> | |
| SPDX-License-Identifier: BSD-2-Clause-Patent | |
| **/ | |
| #include "SdDxe.h" | |
| // | |
| // SdDxe Driver Binding Protocol Instance | |
| // | |
| EFI_DRIVER_BINDING_PROTOCOL gSdDxeDriverBinding = { | |
| SdDxeDriverBindingSupported, | |
| SdDxeDriverBindingStart, | |
| SdDxeDriverBindingStop, | |
| 0x10, | |
| NULL, | |
| NULL | |
| }; | |
| // | |
| // Template for SD_DEVICE data structure. | |
| // | |
| SD_DEVICE mSdDeviceTemplate = { | |
| SD_DEVICE_SIGNATURE, // Signature | |
| NULL, // Handle | |
| NULL, // DevicePath | |
| 0xFF, // Slot | |
| FALSE, // SectorAddressing | |
| { // BlockIo | |
| EFI_BLOCK_IO_PROTOCOL_REVISION, | |
| NULL, | |
| SdReset, | |
| SdReadBlocks, | |
| SdWriteBlocks, | |
| SdFlushBlocks | |
| }, | |
| { // BlockIo2 | |
| NULL, | |
| SdResetEx, | |
| SdReadBlocksEx, | |
| SdWriteBlocksEx, | |
| SdFlushBlocksEx | |
| }, | |
| { // BlockMedia | |
| 0, // MediaId | |
| FALSE, // RemovableMedia | |
| TRUE, // MediaPresent | |
| FALSE, // LogicPartition | |
| FALSE, // ReadOnly | |
| FALSE, // WritingCache | |
| 0x200, // BlockSize | |
| 0, // IoAlign | |
| 0 // LastBlock | |
| }, | |
| { // EraseBlock | |
| EFI_ERASE_BLOCK_PROTOCOL_REVISION, | |
| 1, | |
| SdEraseBlocks | |
| }, | |
| { // DiskInfo | |
| EFI_DISK_INFO_SD_MMC_INTERFACE_GUID, | |
| SdDiskInfoInquiry, | |
| SdDiskInfoIdentify, | |
| SdDiskInfoSenseData, | |
| SdDiskInfoWhichIde | |
| }, | |
| { // Queue | |
| NULL, | |
| NULL | |
| }, | |
| { // Csd | |
| 0, | |
| }, | |
| { // Cid | |
| 0, | |
| }, | |
| NULL, // ControllerNameTable | |
| { // ModelName | |
| 0, | |
| }, | |
| NULL // Private | |
| }; | |
| /** | |
| Decode and print SD CSD Register content. | |
| @param[in] Csd Pointer to SD_CSD data structure. | |
| @retval EFI_SUCCESS The function completed successfully | |
| **/ | |
| EFI_STATUS | |
| DumpCsd ( | |
| IN SD_CSD *Csd | |
| ) | |
| { | |
| SD_CSD2 *Csd2; | |
| DEBUG ((DEBUG_INFO, "== Dump Sd Csd Register==\n")); | |
| DEBUG ((DEBUG_INFO, " CSD structure 0x%x\n", Csd->CsdStructure)); | |
| DEBUG ((DEBUG_INFO, " Data read access-time 1 0x%x\n", Csd->Taac)); | |
| DEBUG ((DEBUG_INFO, " Data read access-time 2 0x%x\n", Csd->Nsac)); | |
| DEBUG ((DEBUG_INFO, " Max. bus clock frequency 0x%x\n", Csd->TranSpeed)); | |
| DEBUG ((DEBUG_INFO, " Device command classes 0x%x\n", Csd->Ccc)); | |
| DEBUG ((DEBUG_INFO, " Max. read data block length 0x%x\n", Csd->ReadBlLen)); | |
| DEBUG ((DEBUG_INFO, " Partial blocks for read allowed 0x%x\n", Csd->ReadBlPartial)); | |
| DEBUG ((DEBUG_INFO, " Write block misalignment 0x%x\n", Csd->WriteBlkMisalign)); | |
| DEBUG ((DEBUG_INFO, " Read block misalignment 0x%x\n", Csd->ReadBlkMisalign)); | |
| DEBUG ((DEBUG_INFO, " DSR implemented 0x%x\n", Csd->DsrImp)); | |
| if (Csd->CsdStructure == 0) { | |
| DEBUG ((DEBUG_INFO, " Device size 0x%x\n", Csd->CSizeLow | (Csd->CSizeHigh << 2))); | |
| DEBUG ((DEBUG_INFO, " Max. read current @ VDD min 0x%x\n", Csd->VddRCurrMin)); | |
| DEBUG ((DEBUG_INFO, " Max. read current @ VDD max 0x%x\n", Csd->VddRCurrMax)); | |
| DEBUG ((DEBUG_INFO, " Max. write current @ VDD min 0x%x\n", Csd->VddWCurrMin)); | |
| DEBUG ((DEBUG_INFO, " Max. write current @ VDD max 0x%x\n", Csd->VddWCurrMax)); | |
| } else { | |
| Csd2 = (SD_CSD2 *)(VOID *)Csd; | |
| DEBUG ((DEBUG_INFO, " Device size 0x%x\n", Csd2->CSizeLow | (Csd->CSizeHigh << 16))); | |
| } | |
| DEBUG ((DEBUG_INFO, " Erase sector size 0x%x\n", Csd->SectorSize)); | |
| DEBUG ((DEBUG_INFO, " Erase single block enable 0x%x\n", Csd->EraseBlkEn)); | |
| DEBUG ((DEBUG_INFO, " Write protect group size 0x%x\n", Csd->WpGrpSize)); | |
| DEBUG ((DEBUG_INFO, " Write protect group enable 0x%x\n", Csd->WpGrpEnable)); | |
| DEBUG ((DEBUG_INFO, " Write speed factor 0x%x\n", Csd->R2WFactor)); | |
| DEBUG ((DEBUG_INFO, " Max. write data block length 0x%x\n", Csd->WriteBlLen)); | |
| DEBUG ((DEBUG_INFO, " Partial blocks for write allowed 0x%x\n", Csd->WriteBlPartial)); | |
| DEBUG ((DEBUG_INFO, " File format group 0x%x\n", Csd->FileFormatGrp)); | |
| DEBUG ((DEBUG_INFO, " Copy flag (OTP) 0x%x\n", Csd->Copy)); | |
| DEBUG ((DEBUG_INFO, " Permanent write protection 0x%x\n", Csd->PermWriteProtect)); | |
| DEBUG ((DEBUG_INFO, " Temporary write protection 0x%x\n", Csd->TmpWriteProtect)); | |
| DEBUG ((DEBUG_INFO, " File format 0x%x\n", Csd->FileFormat)); | |
| return EFI_SUCCESS; | |
| } | |
| /** | |
| Get SD device model name. | |
| @param[in, out] Device The pointer to the SD_DEVICE data structure. | |
| @param[in] Cid Pointer to SD_CID data structure. | |
| @retval EFI_SUCCESS The function completed successfully | |
| **/ | |
| EFI_STATUS | |
| GetSdModelName ( | |
| IN OUT SD_DEVICE *Device, | |
| IN SD_CID *Cid | |
| ) | |
| { | |
| CHAR8 String[SD_MODEL_NAME_MAX_LEN]; | |
| ZeroMem (String, sizeof (String)); | |
| CopyMem (String, Cid->OemId, sizeof (Cid->OemId)); | |
| String[sizeof (Cid->OemId)] = ' '; | |
| CopyMem (String + sizeof (Cid->OemId) + 1, Cid->ProductName, sizeof (Cid->ProductName)); | |
| String[sizeof (Cid->OemId) + sizeof (Cid->ProductName)] = ' '; | |
| CopyMem (String + sizeof (Cid->OemId) + sizeof (Cid->ProductName) + 1, Cid->ProductSerialNumber, sizeof (Cid->ProductSerialNumber)); | |
| AsciiStrToUnicodeStrS (String, Device->ModelName, sizeof (Device->ModelName) / sizeof (Device->ModelName[0])); | |
| return EFI_SUCCESS; | |
| } | |
| /** | |
| Discover user area partition in the SD device. | |
| @param[in] Device The pointer to the SD_DEVICE data structure. | |
| @retval EFI_SUCCESS The user area partition in the SD device is successfully identified. | |
| @return Others Some error occurs when identifying the user area. | |
| **/ | |
| EFI_STATUS | |
| DiscoverUserArea ( | |
| IN SD_DEVICE *Device | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| SD_CSD *Csd; | |
| SD_CSD2 *Csd2; | |
| SD_CID *Cid; | |
| UINT64 Capacity; | |
| UINT32 DevStatus; | |
| UINT16 Rca; | |
| UINT32 CSize; | |
| UINT32 CSizeMul; | |
| UINT32 ReadBlLen; | |
| // | |
| // Deselect the device to force it enter stby mode. | |
| // Note here we don't judge return status as some SD devices return | |
| // error but the state has been stby. | |
| // | |
| SdSelect (Device, 0); | |
| Status = SdSetRca (Device, &Rca); | |
| if (EFI_ERROR (Status)) { | |
| DEBUG ((DEBUG_ERROR, "DiscoverUserArea(): Assign new Rca = 0x%x fails with %r\n", Rca, Status)); | |
| return Status; | |
| } | |
| Csd = &Device->Csd; | |
| Status = SdGetCsd (Device, Rca, Csd); | |
| if (EFI_ERROR (Status)) { | |
| return Status; | |
| } | |
| DumpCsd (Csd); | |
| Cid = &Device->Cid; | |
| Status = SdGetCid (Device, Rca, Cid); | |
| if (EFI_ERROR (Status)) { | |
| return Status; | |
| } | |
| GetSdModelName (Device, Cid); | |
| Status = SdSelect (Device, Rca); | |
| if (EFI_ERROR (Status)) { | |
| DEBUG ((DEBUG_ERROR, "DiscoverUserArea(): Reselect the device 0x%x fails with %r\n", Rca, Status)); | |
| return Status; | |
| } | |
| Status = SdSendStatus (Device, Rca, &DevStatus); | |
| if (EFI_ERROR (Status)) { | |
| return Status; | |
| } | |
| if (Csd->CsdStructure == 0) { | |
| Device->SectorAddressing = FALSE; | |
| CSize = (Csd->CSizeHigh << 2 | Csd->CSizeLow) + 1; | |
| CSizeMul = (1 << (Csd->CSizeMul + 2)); | |
| ReadBlLen = (1 << (Csd->ReadBlLen)); | |
| Capacity = MultU64x32 (MultU64x32 ((UINT64)CSize, CSizeMul), ReadBlLen); | |
| } else { | |
| Device->SectorAddressing = TRUE; | |
| Csd2 = (SD_CSD2 *)(VOID *)Csd; | |
| CSize = (Csd2->CSizeHigh << 16 | Csd2->CSizeLow) + 1; | |
| Capacity = MultU64x32 ((UINT64)CSize, SIZE_512KB); | |
| } | |
| Device->BlockIo.Media = &Device->BlockMedia; | |
| Device->BlockIo2.Media = &Device->BlockMedia; | |
| Device->BlockMedia.IoAlign = Device->Private->PassThru->IoAlign; | |
| Device->BlockMedia.BlockSize = 0x200; | |
| Device->BlockMedia.LastBlock = 0x00; | |
| Device->BlockMedia.RemovableMedia = TRUE; | |
| Device->BlockMedia.MediaPresent = TRUE; | |
| Device->BlockMedia.LogicalPartition = FALSE; | |
| Device->BlockMedia.LastBlock = DivU64x32 (Capacity, Device->BlockMedia.BlockSize) - 1; | |
| if (Csd->EraseBlkEn) { | |
| Device->EraseBlock.EraseLengthGranularity = 1; | |
| } else { | |
| Device->EraseBlock.EraseLengthGranularity = (Csd->SectorSize + 1) * (1 << (Csd->WriteBlLen - 9)); | |
| } | |
| return Status; | |
| } | |
| /** | |
| Scan SD Bus to discover the device. | |
| @param[in] Private The SD driver private data structure. | |
| @param[in] Slot The slot number to check device present. | |
| @retval EFI_SUCCESS Successfully to discover the device and attach | |
| SdMmcIoProtocol to it. | |
| @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack | |
| of resources. | |
| @retval EFI_ALREADY_STARTED The device was discovered before. | |
| @retval Others Fail to discover the device. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| DiscoverSdDevice ( | |
| IN SD_DRIVER_PRIVATE_DATA *Private, | |
| IN UINT8 Slot | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| SD_DEVICE *Device; | |
| EFI_DEVICE_PATH_PROTOCOL *DevicePath; | |
| EFI_DEVICE_PATH_PROTOCOL *NewDevicePath; | |
| EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath; | |
| EFI_HANDLE DeviceHandle; | |
| EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru; | |
| Device = NULL; | |
| DevicePath = NULL; | |
| NewDevicePath = NULL; | |
| RemainingDevicePath = NULL; | |
| PassThru = Private->PassThru; | |
| // | |
| // Build Device Path | |
| // | |
| Status = PassThru->BuildDevicePath ( | |
| PassThru, | |
| Slot, | |
| &DevicePath | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| return Status; | |
| } | |
| if (DevicePath->SubType != MSG_SD_DP) { | |
| Status = EFI_UNSUPPORTED; | |
| goto Error; | |
| } | |
| NewDevicePath = AppendDevicePathNode ( | |
| Private->ParentDevicePath, | |
| DevicePath | |
| ); | |
| if (NewDevicePath == NULL) { | |
| Status = EFI_OUT_OF_RESOURCES; | |
| goto Error; | |
| } | |
| DeviceHandle = NULL; | |
| RemainingDevicePath = NewDevicePath; | |
| Status = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid, &RemainingDevicePath, &DeviceHandle); | |
| if (!EFI_ERROR (Status) && (DeviceHandle != NULL) && IsDevicePathEnd (RemainingDevicePath)) { | |
| // | |
| // The device has been started, directly return to fast boot. | |
| // | |
| Status = EFI_ALREADY_STARTED; | |
| goto Error; | |
| } | |
| // | |
| // Allocate buffer to store SD_DEVICE private data. | |
| // | |
| Device = AllocateCopyPool (sizeof (SD_DEVICE), &mSdDeviceTemplate); | |
| if (Device == NULL) { | |
| Status = EFI_OUT_OF_RESOURCES; | |
| goto Error; | |
| } | |
| Device->DevicePath = NewDevicePath; | |
| Device->Slot = Slot; | |
| Device->Private = Private; | |
| InitializeListHead (&Device->Queue); | |
| // | |
| // Expose user area in the Sd memory card to upper layer. | |
| // | |
| Status = DiscoverUserArea (Device); | |
| if (EFI_ERROR (Status)) { | |
| goto Error; | |
| } | |
| Device->ControllerNameTable = NULL; | |
| AddUnicodeString2 ( | |
| "eng", | |
| gSdDxeComponentName.SupportedLanguages, | |
| &Device->ControllerNameTable, | |
| Device->ModelName, | |
| TRUE | |
| ); | |
| AddUnicodeString2 ( | |
| "en", | |
| gSdDxeComponentName2.SupportedLanguages, | |
| &Device->ControllerNameTable, | |
| Device->ModelName, | |
| FALSE | |
| ); | |
| Status = gBS->InstallMultipleProtocolInterfaces ( | |
| &Device->Handle, | |
| &gEfiDevicePathProtocolGuid, | |
| Device->DevicePath, | |
| &gEfiBlockIoProtocolGuid, | |
| &Device->BlockIo, | |
| &gEfiBlockIo2ProtocolGuid, | |
| &Device->BlockIo2, | |
| &gEfiEraseBlockProtocolGuid, | |
| &Device->EraseBlock, | |
| &gEfiDiskInfoProtocolGuid, | |
| &Device->DiskInfo, | |
| NULL | |
| ); | |
| if (!EFI_ERROR (Status)) { | |
| gBS->OpenProtocol ( | |
| Private->Controller, | |
| &gEfiSdMmcPassThruProtocolGuid, | |
| (VOID **)&(Private->PassThru), | |
| Private->DriverBindingHandle, | |
| Device->Handle, | |
| EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER | |
| ); | |
| } | |
| Error: | |
| FreePool (DevicePath); | |
| if (EFI_ERROR (Status) && (NewDevicePath != NULL)) { | |
| FreePool (NewDevicePath); | |
| } | |
| if (EFI_ERROR (Status) && (Device != NULL)) { | |
| FreePool (Device); | |
| } | |
| return Status; | |
| } | |
| /** | |
| 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. | |
| Currently not implemented. | |
| @retval EFI_UNSUPPORTED The device specified by ControllerHandle and | |
| RemainingDevicePath is not supported by the driver specified by This. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| SdDxeDriverBindingSupported ( | |
| 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_SD_MMC_PASS_THRU_PROTOCOL *PassThru; | |
| UINT8 Slot; | |
| // | |
| // Test EFI_SD_MMC_PASS_THRU_PROTOCOL on the controller handle. | |
| // | |
| Status = gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiSdMmcPassThruProtocolGuid, | |
| (VOID **)&PassThru, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_BY_DRIVER | |
| ); | |
| if (Status == EFI_ALREADY_STARTED) { | |
| return EFI_SUCCESS; | |
| } | |
| if (EFI_ERROR (Status)) { | |
| return Status; | |
| } | |
| // | |
| // Test RemainingDevicePath is valid or not. | |
| // | |
| if ((RemainingDevicePath != NULL) && !IsDevicePathEnd (RemainingDevicePath)) { | |
| Status = PassThru->GetSlotNumber (PassThru, RemainingDevicePath, &Slot); | |
| if (EFI_ERROR (Status)) { | |
| // | |
| // Close the I/O Abstraction(s) used to perform the supported test | |
| // | |
| gBS->CloseProtocol ( | |
| Controller, | |
| &gEfiSdMmcPassThruProtocolGuid, | |
| This->DriverBindingHandle, | |
| Controller | |
| ); | |
| return Status; | |
| } | |
| } | |
| // | |
| // Close the I/O Abstraction(s) used to perform the supported test | |
| // | |
| gBS->CloseProtocol ( | |
| Controller, | |
| &gEfiSdMmcPassThruProtocolGuid, | |
| 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_GET_PROTOCOL | |
| ); | |
| 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.Currently not implemented. | |
| @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 | |
| SdDxeDriverBindingStart ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE Controller, | |
| IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru; | |
| EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath; | |
| SD_DRIVER_PRIVATE_DATA *Private; | |
| UINT8 Slot; | |
| Private = NULL; | |
| PassThru = NULL; | |
| Status = gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiSdMmcPassThruProtocolGuid, | |
| (VOID **)&PassThru, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_BY_DRIVER | |
| ); | |
| if ((EFI_ERROR (Status)) && (Status != EFI_ALREADY_STARTED)) { | |
| return Status; | |
| } | |
| // | |
| // Check EFI_ALREADY_STARTED to reuse the original SD_DRIVER_PRIVATE_DATA. | |
| // | |
| if (Status != EFI_ALREADY_STARTED) { | |
| Private = AllocateZeroPool (sizeof (SD_DRIVER_PRIVATE_DATA)); | |
| if (Private == NULL) { | |
| Status = EFI_OUT_OF_RESOURCES; | |
| goto Error; | |
| } | |
| Status = gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiDevicePathProtocolGuid, | |
| (VOID **)&ParentDevicePath, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_GET_PROTOCOL | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| Private->PassThru = PassThru; | |
| Private->Controller = Controller; | |
| Private->ParentDevicePath = ParentDevicePath; | |
| Private->DriverBindingHandle = This->DriverBindingHandle; | |
| Status = gBS->InstallProtocolInterface ( | |
| &Controller, | |
| &gEfiCallerIdGuid, | |
| EFI_NATIVE_INTERFACE, | |
| Private | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| goto Error; | |
| } | |
| } else { | |
| Status = gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiCallerIdGuid, | |
| (VOID **)&Private, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_GET_PROTOCOL | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| goto Error; | |
| } | |
| } | |
| if (RemainingDevicePath == NULL) { | |
| Slot = 0xFF; | |
| while (TRUE) { | |
| Status = PassThru->GetNextSlot (PassThru, &Slot); | |
| if (EFI_ERROR (Status)) { | |
| // | |
| // Cannot find more legal slots. | |
| // | |
| Status = EFI_SUCCESS; | |
| break; | |
| } | |
| Status = DiscoverSdDevice (Private, Slot); | |
| if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) { | |
| break; | |
| } | |
| } | |
| } else if (!IsDevicePathEnd (RemainingDevicePath)) { | |
| Status = PassThru->GetSlotNumber (PassThru, RemainingDevicePath, &Slot); | |
| if (!EFI_ERROR (Status)) { | |
| Status = DiscoverSdDevice (Private, Slot); | |
| } | |
| } | |
| Error: | |
| if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) { | |
| gBS->CloseProtocol ( | |
| Controller, | |
| &gEfiSdMmcPassThruProtocolGuid, | |
| 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 | |
| SdDxeDriverBindingStop ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE Controller, | |
| IN UINTN NumberOfChildren, | |
| IN EFI_HANDLE *ChildHandleBuffer | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| BOOLEAN AllChildrenStopped; | |
| UINTN Index; | |
| SD_DRIVER_PRIVATE_DATA *Private; | |
| SD_DEVICE *Device; | |
| EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru; | |
| EFI_BLOCK_IO2_PROTOCOL *BlockIo2; | |
| EFI_BLOCK_IO_PROTOCOL *BlockIo; | |
| LIST_ENTRY *Link; | |
| LIST_ENTRY *NextLink; | |
| SD_REQUEST *Request; | |
| EFI_TPL OldTpl; | |
| if (NumberOfChildren == 0) { | |
| Status = gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiCallerIdGuid, | |
| (VOID **)&Private, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_GET_PROTOCOL | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| return EFI_DEVICE_ERROR; | |
| } | |
| gBS->UninstallProtocolInterface ( | |
| Controller, | |
| &gEfiCallerIdGuid, | |
| Private | |
| ); | |
| gBS->CloseProtocol ( | |
| Controller, | |
| &gEfiSdMmcPassThruProtocolGuid, | |
| This->DriverBindingHandle, | |
| Controller | |
| ); | |
| FreePool (Private); | |
| return EFI_SUCCESS; | |
| } | |
| AllChildrenStopped = TRUE; | |
| for (Index = 0; Index < NumberOfChildren; Index++) { | |
| BlockIo = NULL; | |
| BlockIo2 = NULL; | |
| Status = gBS->OpenProtocol ( | |
| ChildHandleBuffer[Index], | |
| &gEfiBlockIoProtocolGuid, | |
| (VOID **)&BlockIo, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_GET_PROTOCOL | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| Status = gBS->OpenProtocol ( | |
| ChildHandleBuffer[Index], | |
| &gEfiBlockIo2ProtocolGuid, | |
| (VOID **)&BlockIo2, | |
| This->DriverBindingHandle, | |
| Controller, | |
| EFI_OPEN_PROTOCOL_GET_PROTOCOL | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| AllChildrenStopped = FALSE; | |
| continue; | |
| } | |
| } | |
| if (BlockIo != NULL) { | |
| Device = SD_DEVICE_DATA_FROM_BLKIO (BlockIo); | |
| } else { | |
| ASSERT (BlockIo2 != NULL); | |
| Device = SD_DEVICE_DATA_FROM_BLKIO2 (BlockIo2); | |
| } | |
| // | |
| // Free all on-going async tasks. | |
| // | |
| OldTpl = gBS->RaiseTPL (TPL_NOTIFY); | |
| for (Link = GetFirstNode (&Device->Queue); | |
| !IsNull (&Device->Queue, Link); | |
| Link = NextLink) | |
| { | |
| NextLink = GetNextNode (&Device->Queue, Link); | |
| RemoveEntryList (Link); | |
| Request = SD_REQUEST_FROM_LINK (Link); | |
| gBS->CloseEvent (Request->Event); | |
| Request->Token->TransactionStatus = EFI_ABORTED; | |
| if (Request->IsEnd) { | |
| gBS->SignalEvent (Request->Token->Event); | |
| } | |
| FreePool (Request); | |
| } | |
| gBS->RestoreTPL (OldTpl); | |
| // | |
| // Close the child handle | |
| // | |
| Status = gBS->CloseProtocol ( | |
| Controller, | |
| &gEfiSdMmcPassThruProtocolGuid, | |
| This->DriverBindingHandle, | |
| ChildHandleBuffer[Index] | |
| ); | |
| Status = gBS->UninstallMultipleProtocolInterfaces ( | |
| ChildHandleBuffer[Index], | |
| &gEfiDevicePathProtocolGuid, | |
| Device->DevicePath, | |
| &gEfiBlockIoProtocolGuid, | |
| &Device->BlockIo, | |
| &gEfiBlockIo2ProtocolGuid, | |
| &Device->BlockIo2, | |
| &gEfiEraseBlockProtocolGuid, | |
| &Device->EraseBlock, | |
| &gEfiDiskInfoProtocolGuid, | |
| &Device->DiskInfo, | |
| NULL | |
| ); | |
| if (EFI_ERROR (Status)) { | |
| AllChildrenStopped = FALSE; | |
| gBS->OpenProtocol ( | |
| Controller, | |
| &gEfiSdMmcPassThruProtocolGuid, | |
| (VOID **)&PassThru, | |
| This->DriverBindingHandle, | |
| ChildHandleBuffer[Index], | |
| EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER | |
| ); | |
| } else { | |
| FreePool (Device->DevicePath); | |
| FreeUnicodeStringTable (Device->ControllerNameTable); | |
| FreePool (Device); | |
| } | |
| } | |
| if (!AllChildrenStopped) { | |
| return EFI_DEVICE_ERROR; | |
| } | |
| return EFI_SUCCESS; | |
| } | |
| /** | |
| The user Entry Point for module SdDxe. 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 errors occur when executing this entry point. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| InitializeSdDxe ( | |
| IN EFI_HANDLE ImageHandle, | |
| IN EFI_SYSTEM_TABLE *SystemTable | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| // | |
| // Install driver model protocol(s). | |
| // | |
| Status = EfiLibInstallDriverBindingComponentName2 ( | |
| ImageHandle, | |
| SystemTable, | |
| &gSdDxeDriverBinding, | |
| ImageHandle, | |
| &gSdDxeComponentName, | |
| &gSdDxeComponentName2 | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| return Status; | |
| } |