diff options
Diffstat (limited to 'Core/MdeModulePkg/Bus/Pci/IdeBusPei/AtapiPeim.h')
| -rw-r--r-- | Core/MdeModulePkg/Bus/Pci/IdeBusPei/AtapiPeim.h | 789 |
1 files changed, 789 insertions, 0 deletions
diff --git a/Core/MdeModulePkg/Bus/Pci/IdeBusPei/AtapiPeim.h b/Core/MdeModulePkg/Bus/Pci/IdeBusPei/AtapiPeim.h new file mode 100644 index 0000000000..20b35c4afd --- /dev/null +++ b/Core/MdeModulePkg/Bus/Pci/IdeBusPei/AtapiPeim.h @@ -0,0 +1,789 @@ +/** @file
+Private Include file for IdeBus PEIM.
+
+Copyright (c) 2006 - 2015, 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 _RECOVERY_ATAPI_H_
+#define _RECOVERY_ATAPI_H_
+
+#include <PiPei.h>
+
+#include <Ppi/BlockIo.h>
+#include <Ppi/BlockIo2.h>
+#include <Ppi/AtaController.h>
+
+#include <Library/DebugLib.h>
+#include <Library/TimerLib.h>
+#include <Library/PeimEntryPoint.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/IoLib.h>
+#include <Library/PeiServicesTablePointerLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PcdLib.h>
+
+
+#include <IndustryStandard/Atapi.h>
+
+#define MAX_SENSE_KEY_COUNT 6
+#define MAX_IDE_CHANNELS 4 // Ide and Sata Primary, Secondary Channel.
+#define MAX_IDE_DEVICES 8 // Ide, Sata Primary, Secondary and Master, Slave device.
+
+typedef enum {
+ IdePrimary = 0,
+ IdeSecondary = 1,
+ IdeMaxChannel = 2
+} EFI_IDE_CHANNEL;
+
+typedef enum {
+ IdeMaster = 0,
+ IdeSlave = 1,
+ IdeMaxDevice = 2
+} EFI_IDE_DEVICE;
+
+//
+// IDE Registers
+//
+typedef union {
+ UINT16 Command; /* when write */
+ UINT16 Status; /* when read */
+} IDE_CMD_OR_STATUS;
+
+typedef union {
+ UINT16 Error; /* when read */
+ UINT16 Feature; /* when write */
+} IDE_ERROR_OR_FEATURE;
+
+typedef union {
+ UINT16 AltStatus; /* when read */
+ UINT16 DeviceControl; /* when write */
+} IDE_ALTSTATUS_OR_DEVICECONTROL;
+
+//
+// IDE registers set
+//
+typedef struct {
+ UINT16 Data;
+ IDE_ERROR_OR_FEATURE Reg1;
+ UINT16 SectorCount;
+ UINT16 SectorNumber;
+ UINT16 CylinderLsb;
+ UINT16 CylinderMsb;
+ UINT16 Head;
+ IDE_CMD_OR_STATUS Reg;
+
+ IDE_ALTSTATUS_OR_DEVICECONTROL Alt;
+ UINT16 DriveAddress;
+} IDE_BASE_REGISTERS;
+
+typedef struct {
+
+ UINTN DevicePosition;
+ EFI_PEI_BLOCK_IO_MEDIA MediaInfo;
+ EFI_PEI_BLOCK_IO2_MEDIA MediaInfo2;
+
+} PEI_ATAPI_DEVICE_INFO;
+
+#define ATAPI_BLK_IO_DEV_SIGNATURE SIGNATURE_32 ('a', 'b', 'i', 'o')
+typedef struct {
+ UINTN Signature;
+
+ EFI_PEI_RECOVERY_BLOCK_IO_PPI AtapiBlkIo;
+ EFI_PEI_RECOVERY_BLOCK_IO2_PPI AtapiBlkIo2;
+ EFI_PEI_PPI_DESCRIPTOR PpiDescriptor;
+ EFI_PEI_PPI_DESCRIPTOR PpiDescriptor2;
+ PEI_ATA_CONTROLLER_PPI *AtaControllerPpi;
+
+ UINTN DeviceCount;
+ PEI_ATAPI_DEVICE_INFO DeviceInfo[MAX_IDE_DEVICES]; //for max 8 device
+ IDE_BASE_REGISTERS IdeIoPortReg[MAX_IDE_CHANNELS]; //for max 4 channel.
+} ATAPI_BLK_IO_DEV;
+
+#define PEI_RECOVERY_ATAPI_FROM_BLKIO_THIS(a) CR (a, ATAPI_BLK_IO_DEV, AtapiBlkIo, ATAPI_BLK_IO_DEV_SIGNATURE)
+#define PEI_RECOVERY_ATAPI_FROM_BLKIO2_THIS(a) CR (a, ATAPI_BLK_IO_DEV, AtapiBlkIo2, ATAPI_BLK_IO_DEV_SIGNATURE)
+
+
+#define STALL_1_MILLI_SECOND 1000 // stall 1 ms
+#define STALL_1_SECONDS 1000 * STALL_1_MILLI_SECOND
+
+//
+// Time Out Value For IDE Device Polling
+//
+// ATATIMEOUT is used for waiting time out for ATA device
+//
+#define ATATIMEOUT 1000 // 1 second
+// ATAPITIMEOUT is used for waiting operation
+// except read and write time out for ATAPI device
+//
+#define ATAPITIMEOUT 1000 // 1 second
+// ATAPILONGTIMEOUT is used for waiting read and
+// write operation timeout for ATAPI device
+//
+#define CDROMLONGTIMEOUT 2000 // 2 seconds
+#define ATAPILONGTIMEOUT 5000 // 5 seconds
+
+//
+// PEI Recovery Block I/O PPI
+//
+
+/**
+ Gets the count of block I/O devices that one specific block driver detects.
+
+ This function is used for getting the count of block I/O devices that one
+ specific block driver detects. To the PEI ATAPI driver, it returns the number
+ of all the detected ATAPI devices it detects during the enumeration process.
+ To the PEI legacy floppy driver, it returns the number of all the legacy
+ devices it finds during its enumeration process. If no device is detected,
+ then the function will return zero.
+
+ @param[in] PeiServices General-purpose services that are available
+ to every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI
+ instance.
+ @param[out] NumberBlockDevices The number of block I/O devices discovered.
+
+ @retval EFI_SUCCESS Operation performed successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+AtapiGetNumberOfBlockDevices (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
+ OUT UINTN *NumberBlockDevices
+ );
+
+/**
+ Gets a block device's media information.
+
+ This function will provide the caller with the specified block device's media
+ information. If the media changes, calling this function will update the media
+ information accordingly.
+
+ @param[in] PeiServices General-purpose services that are available to every
+ PEIM
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, the PPIs that
+ want to talk to a single device must specify the
+ device index that was assigned during the enumeration
+ process. This index is a number from one to
+ NumberBlockDevices.
+ @param[out] MediaInfo The media information of the specified block media.
+ The caller is responsible for the ownership of this
+ data structure.
+
+ @retval EFI_SUCCESS Media information about the specified block device
+ was obtained successfully.
+ @retval EFI_DEVICE_ERROR Cannot get the media information due to a hardware
+ error.
+ @retval Others Other failure occurs.
+
+**/
+EFI_STATUS
+EFIAPI
+AtapiGetBlockDeviceMediaInfo (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
+ IN UINTN DeviceIndex,
+ OUT EFI_PEI_BLOCK_IO_MEDIA *MediaInfo
+ );
+
+/**
+ Reads the requested number of blocks from the specified block device.
+
+ The function reads the requested number of blocks from the device. All the
+ blocks are read, or an error is returned. If there is no media in the device,
+ the function returns EFI_NO_MEDIA.
+
+ @param[in] PeiServices General-purpose services that are available to
+ every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, the PPIs that
+ want to talk to a single device must specify the device
+ index that was assigned during the enumeration process.
+ This index is a number from one to NumberBlockDevices.
+ @param[in] StartLBA The starting logical block address (LBA) to read from
+ on the device
+ @param[in] BufferSize The size of the Buffer in bytes. This number must be
+ a multiple of the intrinsic block size of the device.
+ @param[out] Buffer A pointer to the destination buffer for the data.
+ The caller is responsible for the 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 attempting
+ to perform the read operation.
+ @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not
+ valid, or the buffer is not properly aligned.
+ @retval EFI_NO_MEDIA There is no media in the device.
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of
+ the intrinsic block size of the device.
+
+**/
+EFI_STATUS
+EFIAPI
+AtapiReadBlocks (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
+ IN UINTN DeviceIndex,
+ IN EFI_PEI_LBA StartLBA,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
+ );
+
+/**
+ Gets the count of block I/O devices that one specific block driver detects.
+
+ This function is used for getting the count of block I/O devices that one
+ specific block driver detects. To the PEI ATAPI driver, it returns the number
+ of all the detected ATAPI devices it detects during the enumeration process.
+ To the PEI legacy floppy driver, it returns the number of all the legacy
+ devices it finds during its enumeration process. If no device is detected,
+ then the function will return zero.
+
+ @param[in] PeiServices General-purpose services that are available
+ to every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI
+ instance.
+ @param[out] NumberBlockDevices The number of block I/O devices discovered.
+
+ @retval EFI_SUCCESS Operation performed successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+AtapiGetNumberOfBlockDevices2 (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
+ OUT UINTN *NumberBlockDevices
+ );
+
+/**
+ Gets a block device's media information.
+
+ This function will provide the caller with the specified block device's media
+ information. If the media changes, calling this function will update the media
+ information accordingly.
+
+ @param[in] PeiServices General-purpose services that are available to every
+ PEIM
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, the PPIs that
+ want to talk to a single device must specify the
+ device index that was assigned during the enumeration
+ process. This index is a number from one to
+ NumberBlockDevices.
+ @param[out] MediaInfo The media information of the specified block media.
+ The caller is responsible for the ownership of this
+ data structure.
+
+ @retval EFI_SUCCESS Media information about the specified block device
+ was obtained successfully.
+ @retval EFI_DEVICE_ERROR Cannot get the media information due to a hardware
+ error.
+ @retval Others Other failure occurs.
+
+**/
+EFI_STATUS
+EFIAPI
+AtapiGetBlockDeviceMediaInfo2 (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
+ IN UINTN DeviceIndex,
+ OUT EFI_PEI_BLOCK_IO2_MEDIA *MediaInfo
+ );
+
+/**
+ Reads the requested number of blocks from the specified block device.
+
+ The function reads the requested number of blocks from the device. All the
+ blocks are read, or an error is returned. If there is no media in the device,
+ the function returns EFI_NO_MEDIA.
+
+ @param[in] PeiServices General-purpose services that are available to
+ every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, the PPIs that
+ want to talk to a single device must specify the device
+ index that was assigned during the enumeration process.
+ This index is a number from one to NumberBlockDevices.
+ @param[in] StartLBA The starting logical block address (LBA) to read from
+ on the device
+ @param[in] BufferSize The size of the Buffer in bytes. This number must be
+ a multiple of the intrinsic block size of the device.
+ @param[out] Buffer A pointer to the destination buffer for the data.
+ The caller is responsible for the 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 attempting
+ to perform the read operation.
+ @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not
+ valid, or the buffer is not properly aligned.
+ @retval EFI_NO_MEDIA There is no media in the device.
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of
+ the intrinsic block size of the device.
+
+**/
+EFI_STATUS
+EFIAPI
+AtapiReadBlocks2 (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
+ IN UINTN DeviceIndex,
+ IN EFI_PEI_LBA StartLBA,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
+ );
+
+//
+// Internal functions
+//
+
+/**
+ Enumerate Atapi devices.
+
+ This function is used to enumerate Atatpi device in Ide channel.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device
+
+**/
+VOID
+AtapiEnumerateDevices (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev
+ );
+
+/**
+ Detect Atapi devices.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] DevicePosition An integer to signify device position.
+ @param[out] MediaInfo The media information of the specified block media.
+ @param[out] MediaInfo2 The media information 2 of the specified block media.
+
+ @retval TRUE Atapi device exists in specified position.
+ @retval FALSE Atapi device does not exist in specified position.
+
+**/
+BOOLEAN
+DiscoverAtapiDevice (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN UINTN DevicePosition,
+ OUT EFI_PEI_BLOCK_IO_MEDIA *MediaInfo,
+ OUT EFI_PEI_BLOCK_IO2_MEDIA *MediaInfo2
+ );
+
+/**
+ Detect if an IDE controller exists in specified position.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] DevicePosition An integer to signify device position.
+
+ @retval TRUE The Atapi device exists.
+ @retval FALSE The Atapi device does not present.
+
+**/
+BOOLEAN
+DetectIDEController (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN UINTN DevicePosition
+ );
+
+/**
+ Wait specified time interval to poll for BSY bit clear in the Status Register.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] IdeIoRegisters A pointer to IDE IO registers.
+ @param[in] TimeoutInMilliSeconds Time specified in milliseconds.
+
+ @retval EFI_SUCCESS BSY bit is cleared in the specified time interval.
+ @retval EFI_TIMEOUT BSY bit is not cleared in the specified time interval.
+
+**/
+EFI_STATUS
+WaitForBSYClear (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN IDE_BASE_REGISTERS *IdeIoRegisters,
+ IN UINTN TimeoutInMilliSeconds
+ );
+
+/**
+ Wait specified time interval to poll for DRDY bit set in the Status register.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] IdeIoRegisters A pointer to IDE IO registers.
+ @param[in] TimeoutInMilliSeconds Time specified in milliseconds.
+
+ @retval EFI_SUCCESS DRDY bit is set in the specified time interval.
+ @retval EFI_TIMEOUT DRDY bit is not set in the specified time interval.
+
+**/
+EFI_STATUS
+DRDYReady (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN IDE_BASE_REGISTERS *IdeIoRegisters,
+ IN UINTN TimeoutInMilliSeconds
+ );
+
+/**
+ Wait specified time interval to poll for DRQ bit clear in the Status Register.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] IdeIoRegisters A pointer to IDE IO registers.
+ @param[in] TimeoutInMilliSeconds Time specified in milliseconds.
+
+ @retval EFI_SUCCESS DRQ bit is cleared in the specified time interval.
+ @retval EFI_TIMEOUT DRQ bit is not cleared in the specified time interval.
+
+**/
+EFI_STATUS
+DRQClear (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN IDE_BASE_REGISTERS *IdeIoRegisters,
+ IN UINTN TimeoutInMilliSeconds
+ );
+
+/**
+ Wait specified time interval to poll for DRQ bit clear in the Alternate Status Register.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] IdeIoRegisters A pointer to IDE IO registers.
+ @param[in] TimeoutInMilliSeconds Time specified in milliseconds.
+
+ @retval EFI_SUCCESS DRQ bit is cleared in the specified time interval.
+ @retval EFI_TIMEOUT DRQ bit is not cleared in the specified time interval.
+
+**/
+EFI_STATUS
+DRQClear2 (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN IDE_BASE_REGISTERS *IdeIoRegisters,
+ IN UINTN TimeoutInMilliSeconds
+ );
+
+/**
+ Wait specified time interval to poll for DRQ bit set in the Status Register.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] IdeIoRegisters A pointer to IDE IO registers.
+ @param[in] TimeoutInMilliSeconds Time specified in milliseconds.
+
+ @retval EFI_SUCCESS DRQ bit is set in the specified time interval.
+ @retval EFI_TIMEOUT DRQ bit is not set in the specified time interval.
+ @retval EFI_ABORTED Operation Aborted.
+
+**/
+EFI_STATUS
+DRQReady (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN IDE_BASE_REGISTERS *IdeIoRegisters,
+ IN UINTN TimeoutInMilliSeconds
+ );
+
+/**
+ Wait specified time interval to poll for DRQ bit set in the Alternate Status Register.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] IdeIoRegisters A pointer to IDE IO registers.
+ @param[in] TimeoutInMilliSeconds Time specified in milliseconds.
+
+ @retval EFI_SUCCESS DRQ bit is set in the specified time interval.
+ @retval EFI_TIMEOUT DRQ bit is not set in the specified time interval.
+ @retval EFI_ABORTED Operation Aborted.
+
+**/
+EFI_STATUS
+DRQReady2 (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN IDE_BASE_REGISTERS *IdeIoRegisters,
+ IN UINTN TimeoutInMilliSeconds
+ );
+
+/**
+ Check if there is an error in Status Register.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] StatusReg The address to IDE IO registers.
+
+ @retval EFI_SUCCESS Operation success.
+ @retval EFI_DEVICE_ERROR Device error.
+
+**/
+EFI_STATUS
+CheckErrorStatus (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN UINT16 StatusReg
+ );
+
+/**
+ Idendify Atapi devices.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] DevicePosition An integer to signify device position.
+
+ @retval EFI_SUCCESS Identify successfully.
+ @retval EFI_DEVICE_ERROR Device cannot be identified successfully.
+
+**/
+EFI_STATUS
+ATAPIIdentify (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN UINTN DevicePosition
+ );
+
+/**
+ Sends out ATAPI Test Unit Ready Packet Command to the specified device
+ to find out whether device is accessible.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] DevicePosition An integer to signify device position.
+
+ @retval EFI_SUCCESS TestUnit command executed successfully.
+ @retval EFI_DEVICE_ERROR Device cannot be executed TestUnit command successfully.
+
+**/
+EFI_STATUS
+TestUnitReady (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN UINTN DevicePosition
+ ) ;
+
+/**
+ Send out ATAPI commands conforms to the Packet Command with PIO Data In Protocol.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] DevicePosition An integer to signify device position.
+ @param[in] Packet A pointer to ATAPI command packet.
+ @param[in] Buffer Buffer to contain requested transfer data from device.
+ @param[in] ByteCount Requested transfer data length.
+ @param[in] TimeoutInMilliSeconds Time out value, in unit of milliseconds.
+
+ @retval EFI_SUCCESS Command executed successfully.
+ @retval EFI_DEVICE_ERROR Device cannot be executed command successfully.
+
+**/
+EFI_STATUS
+AtapiPacketCommandIn (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN UINTN DevicePosition,
+ IN ATAPI_PACKET_COMMAND *Packet,
+ IN UINT16 *Buffer,
+ IN UINT32 ByteCount,
+ IN UINTN TimeoutInMilliSeconds
+ );
+
+/**
+ Sends out ATAPI Inquiry Packet Command to the specified device.
+ This command will return INQUIRY data of the device.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] DevicePosition An integer to signify device position.
+ @param[out] MediaInfo The media information of the specified block media.
+ @param[out] MediaInfo2 The media information 2 of the specified block media.
+
+ @retval EFI_SUCCESS Command executed successfully.
+ @retval EFI_DEVICE_ERROR Device cannot be executed command successfully.
+ @retval EFI_UNSUPPORTED Unsupported device type.
+
+**/
+EFI_STATUS
+Inquiry (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN UINTN DevicePosition,
+ OUT EFI_PEI_BLOCK_IO_MEDIA *MediaInfo,
+ OUT EFI_PEI_BLOCK_IO2_MEDIA *MediaInfo2
+ );
+
+/**
+ Used before read/write blocks from/to ATAPI device media.
+ Since ATAPI device media is removable, it is necessary to detect
+ whether media is present and get current present media's information.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] DevicePosition An integer to signify device position.
+ @param[in, out] MediaInfo The media information of the specified block media.
+ @param[in, out] MediaInfo2 The media information 2 of the specified block media.
+
+ @retval EFI_SUCCESS Command executed successfully.
+ @retval EFI_DEVICE_ERROR Some device errors happen.
+ @retval EFI_OUT_OF_RESOURCES Can not allocate required resources.
+
+**/
+EFI_STATUS
+DetectMedia (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN UINTN DevicePosition,
+ IN OUT EFI_PEI_BLOCK_IO_MEDIA *MediaInfo,
+ IN OUT EFI_PEI_BLOCK_IO2_MEDIA *MediaInfo2
+ );
+
+/**
+ Reset specified Atapi device.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] DevicePosition An integer to signify device position.
+ @param[in] Extensive If TRUE, use ATA soft reset, otherwise use Atapi soft reset.
+
+ @retval EFI_SUCCESS Command executed successfully.
+ @retval EFI_DEVICE_ERROR Some device errors happen.
+
+**/
+EFI_STATUS
+ResetDevice (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN UINTN DevicePosition,
+ IN BOOLEAN Extensive
+ );
+
+/**
+ Sends out ATAPI Request Sense Packet Command to the specified device.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] DevicePosition An integer to signify device position.
+ @param[in] SenseBuffers Pointer to sense buffer.
+ @param[in, out] SenseCounts Length of sense buffer.
+
+ @retval EFI_SUCCESS Command executed successfully.
+ @retval EFI_DEVICE_ERROR Some device errors happen.
+
+**/
+EFI_STATUS
+RequestSense (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN UINTN DevicePosition,
+ IN ATAPI_REQUEST_SENSE_DATA *SenseBuffers,
+ IN OUT UINT8 *SenseCounts
+ );
+
+/**
+ Sends out ATAPI Read Capacity Packet Command to the specified device.
+ This command will return the information regarding the capacity of the
+ media in the device.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] DevicePosition An integer to signify device position.
+ @param[in, out] MediaInfo The media information of the specified block media.
+ @param[in, out] MediaInfo2 The media information 2 of the specified block media.
+
+ @retval EFI_SUCCESS Command executed successfully.
+ @retval EFI_DEVICE_ERROR Some device errors happen.
+
+**/
+EFI_STATUS
+ReadCapacity (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN UINTN DevicePosition,
+ IN OUT EFI_PEI_BLOCK_IO_MEDIA *MediaInfo,
+ IN OUT EFI_PEI_BLOCK_IO2_MEDIA *MediaInfo2
+ );
+
+/**
+ Perform read from disk in block unit.
+
+ @param[in] AtapiBlkIoDev A pointer to atapi block IO device.
+ @param[in] DevicePosition An integer to signify device position.
+ @param[in] Buffer Buffer to contain read data.
+ @param[in] StartLba Starting LBA address.
+ @param[in] NumberOfBlocks Number of blocks to read.
+ @param[in] BlockSize Size of each block.
+
+ @retval EFI_SUCCESS Command executed successfully.
+ @retval EFI_DEVICE_ERROR Some device errors happen.
+
+**/
+EFI_STATUS
+ReadSectors (
+ IN ATAPI_BLK_IO_DEV *AtapiBlkIoDev,
+ IN UINTN DevicePosition,
+ IN VOID *Buffer,
+ IN EFI_PEI_LBA StartLba,
+ IN UINTN NumberOfBlocks,
+ IN UINTN BlockSize
+ );
+
+/**
+ Check if there is media according to sense data.
+
+ @param[in] SenseData Pointer to sense data.
+ @param[in] SenseCounts Count of sense data.
+
+ @retval TRUE No media
+ @retval FALSE Media exists
+
+**/
+BOOLEAN
+IsNoMedia (
+ IN ATAPI_REQUEST_SENSE_DATA *SenseData,
+ IN UINTN SenseCounts
+ );
+
+/**
+ Check if device state is unclear according to sense data.
+
+ @param[in] SenseData Pointer to sense data.
+ @param[in] SenseCounts Count of sense data.
+
+ @retval TRUE Device state is unclear
+ @retval FALSE Device state is clear
+
+**/
+BOOLEAN
+IsDeviceStateUnclear (
+ IN ATAPI_REQUEST_SENSE_DATA *SenseData,
+ IN UINTN SenseCounts
+ );
+
+/**
+ Check if there is media error according to sense data.
+
+ @param[in] SenseData Pointer to sense data.
+ @param[in] SenseCounts Count of sense data.
+
+ @retval TRUE Media error
+ @retval FALSE No media error
+
+**/
+BOOLEAN
+IsMediaError (
+ IN ATAPI_REQUEST_SENSE_DATA *SenseData,
+ IN UINTN SenseCounts
+ );
+
+/**
+ Check if drive is ready according to sense data.
+
+ @param[in] SenseData Pointer to sense data.
+ @param[in] SenseCounts Count of sense data.
+ @param[out] NeedRetry Indicate if retry is needed.
+
+ @retval TRUE Drive ready
+ @retval FALSE Drive not ready
+
+**/
+BOOLEAN
+IsDriveReady (
+ IN ATAPI_REQUEST_SENSE_DATA *SenseData,
+ IN UINTN SenseCounts,
+ OUT BOOLEAN *NeedRetry
+ );
+
+#endif
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