| /** @file | |
| Master header file for ATA Bus Driver. | |
| This file defines common data structures, macro definitions and some module | |
| internal function header files. | |
| Copyright (c) 2009 - 2010, 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. | |
| **/ | |
| #ifndef _ATA_BUS_H_ | |
| #define _ATA_BUS_H_ | |
| #include <Uefi.h> | |
| #include <Protocol/AtaPassThru.h> | |
| #include <Protocol/BlockIo.h> | |
| #include <Protocol/DiskInfo.h> | |
| #include <Protocol/DevicePath.h> | |
| #include <Library/DebugLib.h> | |
| #include <Library/UefiDriverEntryPoint.h> | |
| #include <Library/BaseLib.h> | |
| #include <Library/UefiLib.h> | |
| #include <Library/BaseMemoryLib.h> | |
| #include <Library/MemoryAllocationLib.h> | |
| #include <Library/UefiBootServicesTableLib.h> | |
| #include <Library/DevicePathLib.h> | |
| #include <IndustryStandard/Atapi.h> | |
| // | |
| // Time out value for ATA pass through protocol | |
| // | |
| #define ATA_TIMEOUT EFI_TIMER_PERIOD_SECONDS (1) | |
| // | |
| // Maximum number of times to retry ATA command | |
| // | |
| #define MAX_RETRY_TIMES 3 | |
| // | |
| // The maximum total sectors count in 28 bit addressing mode | |
| // | |
| #define MAX_28BIT_ADDRESSING_CAPACITY 0xfffffff | |
| // | |
| // The maximum ATA transaction sector count in 28 bit addressing mode. | |
| // | |
| #define MAX_28BIT_TRANSFER_BLOCK_NUM 0x100 | |
| // | |
| // The maximum ATA transaction sector count in 48 bit addressing mode. | |
| // | |
| #define MAX_48BIT_TRANSFER_BLOCK_NUM 0x10000 | |
| // | |
| // The maximum model name in ATA identify data | |
| // | |
| #define MAX_MODEL_NAME_LEN 40 | |
| // | |
| // ATA bus data structure for ATA controller | |
| // | |
| typedef struct { | |
| EFI_ATA_PASS_THRU_PROTOCOL *AtaPassThru; | |
| EFI_HANDLE Controller; | |
| EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath; | |
| EFI_HANDLE DriverBindingHandle; | |
| } ATA_BUS_DRIVER_DATA; | |
| #define ATA_DEVICE_SIGNATURE SIGNATURE_32 ('A', 'B', 'I', 'D') | |
| // | |
| // ATA device data structure for each child device | |
| // | |
| typedef struct { | |
| UINT32 Signature; | |
| EFI_HANDLE Handle; | |
| EFI_BLOCK_IO_PROTOCOL BlockIo; | |
| EFI_BLOCK_IO_MEDIA BlockMedia; | |
| EFI_DISK_INFO_PROTOCOL DiskInfo; | |
| EFI_DEVICE_PATH_PROTOCOL *DevicePath; | |
| ATA_BUS_DRIVER_DATA *AtaBusDriverData; | |
| UINT16 Port; | |
| UINT16 PortMultiplierPort; | |
| // | |
| // Buffer for the execution of ATA pass through protocol | |
| // | |
| EFI_ATA_PASS_THRU_COMMAND_PACKET Packet; | |
| EFI_ATA_COMMAND_BLOCK Acb; | |
| EFI_ATA_STATUS_BLOCK *Asb; | |
| BOOLEAN UdmaValid; | |
| BOOLEAN Lba48Bit; | |
| // | |
| // Cached data for ATA identify data | |
| // | |
| ATA_IDENTIFY_DATA *IdentifyData; | |
| EFI_UNICODE_STRING_TABLE *ControllerNameTable; | |
| CHAR16 ModelName[MAX_MODEL_NAME_LEN + 1]; | |
| } ATA_DEVICE; | |
| #define ATA_DEVICE_FROM_BLOCK_IO(a) CR (a, ATA_DEVICE, BlockIo, ATA_DEVICE_SIGNATURE) | |
| #define ATA_DEVICE_FROM_DISK_INFO(a) CR (a, ATA_DEVICE, DiskInfo, ATA_DEVICE_SIGNATURE) | |
| // | |
| // Global Variables | |
| // | |
| extern EFI_DRIVER_BINDING_PROTOCOL gAtaBusDriverBinding; | |
| extern EFI_COMPONENT_NAME_PROTOCOL gAtaBusComponentName; | |
| extern EFI_COMPONENT_NAME2_PROTOCOL gAtaBusComponentName2; | |
| /** | |
| Wrapper for EFI_ATA_PASS_THRU_PROTOCOL.ResetDevice(). | |
| This function wraps the ResetDevice() invocation for ATA pass through function | |
| for an ATA device. | |
| @param AtaDevice The ATA child device involved for the operation. | |
| @return The return status from EFI_ATA_PASS_THRU_PROTOCOL.PassThru(). | |
| **/ | |
| EFI_STATUS | |
| ResetAtaDevice ( | |
| IN ATA_DEVICE *AtaDevice | |
| ); | |
| /** | |
| Discovers whether it is a valid ATA device. | |
| This function issues ATA_CMD_IDENTIFY_DRIVE command to the ATA device to identify it. | |
| If the command is executed successfully, it then identifies it and initializes | |
| the Media information in Block IO protocol interface. | |
| @param AtaDevice The ATA child device involved for the operation. | |
| @retval EFI_SUCCESS The device is successfully identified and Media information | |
| is correctly initialized. | |
| @return others Some error occurs when discovering the ATA device. | |
| **/ | |
| EFI_STATUS | |
| DiscoverAtaDevice ( | |
| IN OUT ATA_DEVICE *AtaDevice | |
| ); | |
| /** | |
| Read or write a number of blocks from ATA device. | |
| This function performs ATA pass through transactions to read/write data from/to | |
| ATA device. It may separate the read/write request into several ATA pass through | |
| transactions. | |
| @param AtaDevice The ATA child device involved for the operation. | |
| @param Buffer The pointer to the current transaction buffer. | |
| @param StartLba The starting logical block address to be accessed. | |
| @param NumberOfBlocks The block number or sector count of the transfer. | |
| @param IsWrite Indicates whether it is a write operation. | |
| @retval EFI_SUCCESS The data transfer is complete successfully. | |
| @return others Some error occurs when transferring data. | |
| **/ | |
| EFI_STATUS | |
| AccessAtaDevice( | |
| IN OUT ATA_DEVICE *AtaDevice, | |
| IN OUT UINT8 *Buffer, | |
| IN EFI_LBA StartLba, | |
| IN UINTN NumberOfBlocks, | |
| IN BOOLEAN IsWrite | |
| ); | |
| // | |
| // Protocol interface prototypes | |
| // | |
| /** | |
| 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 | |
| AtaBusDriverBindingSupported ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE Controller, | |
| IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath | |
| ); | |
| /** | |
| 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 failded to start the device. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| AtaBusDriverBindingStart ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE Controller, | |
| IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath | |
| ); | |
| /** | |
| 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 | |
| AtaBusDriverBindingStop ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE Controller, | |
| IN UINTN NumberOfChildren, | |
| IN EFI_HANDLE *ChildHandleBuffer | |
| ); | |
| /** | |
| Retrieves a Unicode string that is the user readable name of the driver. | |
| This function retrieves the user readable name of a driver in the form of a | |
| Unicode string. If the driver specified by This has a user readable name in | |
| the language specified by Language, then a pointer to the driver name is | |
| returned in DriverName, and EFI_SUCCESS is returned. If the driver specified | |
| by This does not support the language specified by Language, | |
| then EFI_UNSUPPORTED is returned. | |
| @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or | |
| EFI_COMPONENT_NAME_PROTOCOL instance. | |
| @param Language[in] A pointer to a Null-terminated ASCII string | |
| array indicating the language. This is the | |
| language of the driver name that the caller is | |
| requesting, and it must match one of the | |
| languages specified in SupportedLanguages. The | |
| number of languages supported by a driver is up | |
| to the driver writer. Language is specified | |
| in RFC 4646 or ISO 639-2 language code format. | |
| @param DriverName[out] A pointer to the Unicode string to return. | |
| This Unicode string is the name of the | |
| driver specified by This in the language | |
| specified by Language. | |
| @retval EFI_SUCCESS The Unicode string for the Driver specified by | |
| This and the language specified by Language was | |
| returned in DriverName. | |
| @retval EFI_INVALID_PARAMETER Language is NULL. | |
| @retval EFI_INVALID_PARAMETER DriverName is NULL. | |
| @retval EFI_UNSUPPORTED The driver specified by This does not support | |
| the language specified by Language. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| AtaBusComponentNameGetDriverName ( | |
| IN EFI_COMPONENT_NAME_PROTOCOL *This, | |
| IN CHAR8 *Language, | |
| OUT CHAR16 **DriverName | |
| ); | |
| /** | |
| Retrieves a Unicode string that is the user readable name of the controller | |
| that is being managed by a driver. | |
| This function retrieves the user readable name of the controller specified by | |
| ControllerHandle and ChildHandle in the form of a Unicode string. If the | |
| driver specified by This has a user readable name in the language specified by | |
| Language, then a pointer to the controller name is returned in ControllerName, | |
| and EFI_SUCCESS is returned. If the driver specified by This is not currently | |
| managing the controller specified by ControllerHandle and ChildHandle, | |
| then EFI_UNSUPPORTED is returned. If the driver specified by This does not | |
| support the language specified by Language, then EFI_UNSUPPORTED is returned. | |
| @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or | |
| EFI_COMPONENT_NAME_PROTOCOL instance. | |
| @param ControllerHandle[in] The handle of a controller that the driver | |
| specified by This is managing. This handle | |
| specifies the controller whose name is to be | |
| returned. | |
| @param ChildHandle[in] The handle of the child controller to retrieve | |
| the name of. This is an optional parameter that | |
| may be NULL. It will be NULL for device | |
| drivers. It will also be NULL for a bus drivers | |
| that wish to retrieve the name of the bus | |
| controller. It will not be NULL for a bus | |
| driver that wishes to retrieve the name of a | |
| child controller. | |
| @param Language[in] A pointer to a Null-terminated ASCII string | |
| array indicating the language. This is the | |
| language of the driver name that the caller is | |
| requesting, and it must match one of the | |
| languages specified in SupportedLanguages. The | |
| number of languages supported by a driver is up | |
| to the driver writer. Language is specified in | |
| RFC 4646 or ISO 639-2 language code format. | |
| @param ControllerName[out] A pointer to the Unicode string to return. | |
| This Unicode string is the name of the | |
| controller specified by ControllerHandle and | |
| ChildHandle in the language specified by | |
| Language from the point of view of the driver | |
| specified by This. | |
| @retval EFI_SUCCESS The Unicode string for the user readable name in | |
| the language specified by Language for the | |
| driver specified by This was returned in | |
| DriverName. | |
| @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE. | |
| @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid | |
| EFI_HANDLE. | |
| @retval EFI_INVALID_PARAMETER Language is NULL. | |
| @retval EFI_INVALID_PARAMETER ControllerName is NULL. | |
| @retval EFI_UNSUPPORTED The driver specified by This is not currently | |
| managing the controller specified by | |
| ControllerHandle and ChildHandle. | |
| @retval EFI_UNSUPPORTED The driver specified by This does not support | |
| the language specified by Language. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| AtaBusComponentNameGetControllerName ( | |
| IN EFI_COMPONENT_NAME_PROTOCOL *This, | |
| IN EFI_HANDLE ControllerHandle, | |
| IN EFI_HANDLE ChildHandle OPTIONAL, | |
| IN CHAR8 *Language, | |
| OUT CHAR16 **ControllerName | |
| ); | |
| /** | |
| Reset the Block Device. | |
| @param This Indicates a pointer to the calling context. | |
| @param ExtendedVerification Driver may perform diagnostics on reset. | |
| @retval EFI_SUCCESS The device was reset. | |
| @retval EFI_DEVICE_ERROR The device is not functioning properly and could | |
| not be reset. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| AtaBlockIoReset ( | |
| IN EFI_BLOCK_IO_PROTOCOL *This, | |
| IN BOOLEAN ExtendedVerification | |
| ); | |
| /** | |
| Read BufferSize bytes from Lba into Buffer. | |
| @param This Indicates a pointer to the calling context. | |
| @param MediaId Id of the media, changes every time the media is replaced. | |
| @param Lba The starting Logical Block Address to read from | |
| @param BufferSize Size of Buffer, must be a multiple of device block size. | |
| @param Buffer A pointer to the destination buffer for the data. The caller is | |
| responsible for either having implicit or explicit ownership of the buffer. | |
| @retval EFI_SUCCESS The data was read correctly from the device. | |
| @retval EFI_DEVICE_ERROR The device reported an error while performing the read. | |
| @retval EFI_NO_MEDIA There is no media in the device. | |
| @retval EFI_MEDIA_CHANGED The MediaId does not matched the current device. | |
| @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device. | |
| @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid, | |
| or the buffer is not on proper alignment. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| AtaBlockIoReadBlocks ( | |
| IN EFI_BLOCK_IO_PROTOCOL *This, | |
| IN UINT32 MediaId, | |
| IN EFI_LBA Lba, | |
| IN UINTN BufferSize, | |
| OUT VOID *Buffer | |
| ); | |
| /** | |
| Write BufferSize bytes from Lba into Buffer. | |
| @param This Indicates a pointer to the calling context. | |
| @param MediaId The media ID that the write request is for. | |
| @param Lba The starting logical block address to be written. The caller is | |
| responsible for writing to only legitimate locations. | |
| @param BufferSize Size of Buffer, must be a multiple of device block size. | |
| @param Buffer A pointer to the source buffer for the data. | |
| @retval EFI_SUCCESS The data was written correctly to the device. | |
| @retval EFI_WRITE_PROTECTED The device can not be written to. | |
| @retval EFI_DEVICE_ERROR The device reported an error while performing the write. | |
| @retval EFI_NO_MEDIA There is no media in the device. | |
| @retval EFI_MEDIA_CHNAGED The MediaId does not matched the current device. | |
| @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device. | |
| @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid, | |
| or the buffer is not on proper alignment. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| AtaBlockIoWriteBlocks ( | |
| IN EFI_BLOCK_IO_PROTOCOL *This, | |
| IN UINT32 MediaId, | |
| IN EFI_LBA Lba, | |
| IN UINTN BufferSize, | |
| IN VOID *Buffer | |
| ); | |
| /** | |
| Flush the Block Device. | |
| @param This Indicates a pointer to the calling context. | |
| @retval EFI_SUCCESS All outstanding data was written to the device | |
| @retval EFI_DEVICE_ERROR The device reported an error while writing back the data | |
| @retval EFI_NO_MEDIA There is no media in the device. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| AtaBlockIoFlushBlocks ( | |
| IN EFI_BLOCK_IO_PROTOCOL *This | |
| ); | |
| /** | |
| Provides inquiry information for the controller type. | |
| 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[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance. | |
| @param[in, out] InquiryData Pointer to a buffer for the inquiry data. | |
| @param[in, out] 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 InquiryDataSize not big enough | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| AtaDiskInfoInquiry ( | |
| IN EFI_DISK_INFO_PROTOCOL *This, | |
| IN OUT VOID *InquiryData, | |
| IN OUT UINT32 *InquiryDataSize | |
| ); | |
| /** | |
| Provides identify information for the controller type. | |
| 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[in] This Pointer to the EFI_DISK_INFO_PROTOCOL | |
| instance. | |
| @param[in, out] IdentifyData Pointer to a buffer for the identify data. | |
| @param[in, out] 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 | |
| AtaDiskInfoIdentify ( | |
| IN EFI_DISK_INFO_PROTOCOL *This, | |
| IN OUT VOID *IdentifyData, | |
| IN OUT UINT32 *IdentifyDataSize | |
| ); | |
| /** | |
| Provides sense data information for the controller type. | |
| 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[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance. | |
| @param[in, out] SenseData Pointer to the SenseData. | |
| @param[in, out] SenseDataSize Size of SenseData in bytes. | |
| @param[out] SenseDataNumber Pointer to the value for the sense 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 SenseData from device. | |
| @retval EFI_BUFFER_TOO_SMALL SenseDataSize not big enough. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| AtaDiskInfoSenseData ( | |
| IN EFI_DISK_INFO_PROTOCOL *This, | |
| IN OUT VOID *SenseData, | |
| IN OUT UINT32 *SenseDataSize, | |
| OUT UINT8 *SenseDataNumber | |
| ); | |
| /** | |
| This function is used by the IDE bus driver to get controller information. | |
| @param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance. | |
| @param[out] IdeChannel Pointer to the Ide Channel number. Primary or secondary. | |
| @param[out] 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 | |
| AtaDiskInfoWhichIde ( | |
| IN EFI_DISK_INFO_PROTOCOL *This, | |
| OUT UINT32 *IdeChannel, | |
| OUT UINT32 *IdeDevice | |
| ); | |
| #endif |