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/** @file
Copyright (c) 2006, 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.
Module Name: AtapiPassThru.h
**/
#ifndef _APT_H
#define _APT_H
#include <Uefi.h>
#include <Protocol/ScsiPassThru.h>
#include <Protocol/ScsiPassThruExt.h>
#include <Protocol/PciIo.h>
#include <Protocol/DriverSupportedEfiVersion.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/PcdLib.h>
#include <Library/DevicePathLib.h>
#include <IndustryStandard/Pci22.h>
///
/// bit definition
///
#define bit(a) (1 << (a))
#define MAX_TARGET_ID 4
//
// 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;
typedef enum {
IdePrimary = 0,
IdeSecondary = 1,
IdeMaxChannel = 2
} EFI_IDE_CHANNEL;
///
//
// Bit definitions in Programming Interface byte of the Class Code field
// in PCI IDE controller's Configuration Space
//
#define IDE_PRIMARY_OPERATING_MODE BIT0
#define IDE_PRIMARY_PROGRAMMABLE_INDICATOR BIT1
#define IDE_SECONDARY_OPERATING_MODE BIT2
#define IDE_SECONDARY_PROGRAMMABLE_INDICATOR BIT3
#define ATAPI_MAX_CHANNEL 2
///
/// 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;
#define ATAPI_SCSI_PASS_THRU_DEV_SIGNATURE SIGNATURE_32 ('a', 's', 'p', 't')
typedef struct {
UINTN Signature;
EFI_HANDLE Handle;
EFI_SCSI_PASS_THRU_PROTOCOL ScsiPassThru;
EFI_EXT_SCSI_PASS_THRU_PROTOCOL ExtScsiPassThru;
EFI_PCI_IO_PROTOCOL *PciIo;
UINT64 OriginalPciAttributes;
//
// Local Data goes here
//
IDE_BASE_REGISTERS *IoPort;
IDE_BASE_REGISTERS AtapiIoPortRegisters[2];
UINT32 LatestTargetId;
UINT64 LatestLun;
} ATAPI_SCSI_PASS_THRU_DEV;
//
// IDE registers' base addresses
//
typedef struct {
UINT16 CommandBlockBaseAddr;
UINT16 ControlBlockBaseAddr;
} IDE_REGISTERS_BASE_ADDR;
#define ATAPI_SCSI_PASS_THRU_DEV_FROM_THIS(a) \
CR (a, \
ATAPI_SCSI_PASS_THRU_DEV, \
ScsiPassThru, \
ATAPI_SCSI_PASS_THRU_DEV_SIGNATURE \
)
#define ATAPI_EXT_SCSI_PASS_THRU_DEV_FROM_THIS(a) \
CR (a, \
ATAPI_SCSI_PASS_THRU_DEV, \
ExtScsiPassThru, \
ATAPI_SCSI_PASS_THRU_DEV_SIGNATURE \
)
//
// Global Variables
//
extern EFI_DRIVER_BINDING_PROTOCOL gAtapiScsiPassThruDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL gAtapiScsiPassThruComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gAtapiScsiPassThruComponentName2;
extern EFI_DRIVER_SUPPORTED_EFI_VERSION_PROTOCOL gAtapiScsiPassThruDriverSupportedEfiVersion;
//
// ATAPI Command op code
//
#define OP_INQUIRY 0x12
#define OP_LOAD_UNLOAD_CD 0xa6
#define OP_MECHANISM_STATUS 0xbd
#define OP_MODE_SELECT_10 0x55
#define OP_MODE_SENSE_10 0x5a
#define OP_PAUSE_RESUME 0x4b
#define OP_PLAY_AUDIO_10 0x45
#define OP_PLAY_AUDIO_MSF 0x47
#define OP_PLAY_CD 0xbc
#define OP_PLAY_CD_MSF 0xb4
#define OP_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
#define OP_READ_10 0x28
#define OP_READ_12 0xa8
#define OP_READ_CAPACITY 0x25
#define OP_READ_CD 0xbe
#define OP_READ_CD_MSF 0xb9
#define OP_READ_HEADER 0x44
#define OP_READ_SUB_CHANNEL 0x42
#define OP_READ_TOC 0x43
#define OP_REQUEST_SENSE 0x03
#define OP_SCAN 0xba
#define OP_SEEK_10 0x2b
#define OP_SET_CD_SPEED 0xbb
#define OP_STOPPLAY_SCAN 0x4e
#define OP_START_STOP_UNIT 0x1b
#define OP_TEST_UNIT_READY 0x00
#define OP_FORMAT_UNIT 0x04
#define OP_READ_FORMAT_CAPACITIES 0x23
#define OP_VERIFY 0x2f
#define OP_WRITE_10 0x2a
#define OP_WRITE_12 0xaa
#define OP_WRITE_AND_VERIFY 0x2e
//
// ATA Command
//
#define ATAPI_SOFT_RESET_CMD 0x08
typedef enum {
DataIn = 0,
DataOut = 1,
DataBi = 2,
NoData = 3,
End = 0xff
} DATA_DIRECTION;
typedef struct {
UINT8 OpCode;
DATA_DIRECTION Direction;
} SCSI_COMMAND_SET;
#define MAX_CHANNEL 2
#define ValidCdbLength(Len) ((Len) == 6 || (Len) == 10 || (Len) == 12) ? 1 : 0
//
// IDE registers bit definitions
//
// ATA Err Reg bitmap
//
#define BBK_ERR bit (7) ///< Bad block detected
#define UNC_ERR bit (6) ///< Uncorrectable Data
#define MC_ERR bit (5) ///< Media Change
#define IDNF_ERR bit (4) ///< ID Not Found
#define MCR_ERR bit (3) ///< Media Change Requested
#define ABRT_ERR bit (2) ///< Aborted Command
#define TK0NF_ERR bit (1) ///< Track 0 Not Found
#define AMNF_ERR bit (0) ///< Address Mark Not Found
//
// ATAPI Err Reg bitmap
//
#define SENSE_KEY_ERR (bit (7) | bit (6) | bit (5) | bit (4))
#define EOM_ERR bit (1) ///< End of Media Detected
#define ILI_ERR bit (0) ///< Illegal Length Indication
//
// Device/Head Reg
//
#define LBA_MODE bit (6)
#define DEV bit (4)
#define HS3 bit (3)
#define HS2 bit (2)
#define HS1 bit (1)
#define HS0 bit (0)
#define CHS_MODE (0)
#define DRV0 (0)
#define DRV1 (1)
#define MST_DRV DRV0
#define SLV_DRV DRV1
//
// Status Reg
//
#define BSY bit (7) ///< Controller Busy
#define DRDY bit (6) ///< Drive Ready
#define DWF bit (5) ///< Drive Write Fault
#define DSC bit (4) ///< Disk Seek Complete
#define DRQ bit (3) ///< Data Request
#define CORR bit (2) ///< Corrected Data
#define IDX bit (1) ///< Index
#define ERR bit (0) ///< Error
#define CHECK bit (0) ///< Check bit for ATAPI Status Reg
//
// Device Control Reg
//
#define SRST bit (2) ///< Software Reset
#define IEN_L bit (1) ///< Interrupt Enable
//
// ATAPI Feature Register
//
#define OVERLAP bit (1)
#define DMA bit (0)
//
// ATAPI Interrupt Reason Reson Reg (ATA Sector Count Register)
//
#define RELEASE bit (2)
#define IO bit (1)
#define CoD bit (0)
#define PACKET_CMD 0xA0
#define DEFAULT_CMD (0xa0)
//
// default content of device control register, disable INT
//
#define DEFAULT_CTL (0x0a)
#define MAX_ATAPI_BYTE_COUNT (0xfffe)
//
// function prototype
//
EFI_STATUS
EFIAPI
AtapiScsiPassThruDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
EFI_STATUS
EFIAPI
AtapiScsiPassThruDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
EFI_STATUS
EFIAPI
AtapiScsiPassThruDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
);
//
// EFI Component Name Functions
//
/**
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
AtapiScsiPassThruComponentNameGetDriverName (
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
AtapiScsiPassThruComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
);
EFI_STATUS
EFIAPI
AtapiScsiPassThruDriverEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
Routine Description:
Entry point for EFI drivers.
Arguments:
ImageHandle - EFI_HANDLE
SystemTable - EFI_SYSTEM_TABLE
Returns:
EFI_SUCCESS
Others
--*/
;
EFI_STATUS
RegisterAtapiScsiPassThru (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT64 OriginalPciAttributes
)
/*++
Routine Description:
Attaches SCSI Pass Thru Protocol for specified IDE channel.
Arguments:
This - Protocol instance pointer.
Controller - Parent device handle to the IDE channel.
PciIo - PCI I/O protocol attached on the "Controller".
Returns:
Always return EFI_SUCCESS unless installing SCSI Pass Thru Protocol failed.
--*/
;
EFI_STATUS
EFIAPI
AtapiScsiPassThruFunction (
IN EFI_SCSI_PASS_THRU_PROTOCOL *This,
IN UINT32 Target,
IN UINT64 Lun,
IN OUT EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,
IN EFI_EVENT Event OPTIONAL
)
/*++
Routine Description:
Implements EFI_SCSI_PASS_THRU_PROTOCOL.PassThru() function.
Arguments:
This: The EFI_SCSI_PASS_THRU_PROTOCOL instance.
Target: The Target ID of the ATAPI device to send the SCSI
Request Packet. To ATAPI devices attached on an IDE
Channel, Target ID 0 indicates Master device;Target
ID 1 indicates Slave device.
Lun: The LUN of the ATAPI device to send the SCSI Request
Packet. To the ATAPI device, Lun is always 0.
Packet: The SCSI Request Packet to send to the ATAPI device
specified by Target and Lun.
Event: If non-blocking I/O is not supported then Event is ignored,
and blocking I/O is performed.
If Event is NULL, then blocking I/O is performed.
If Event is not NULL and non blocking I/O is supported,
then non-blocking I/O is performed, and Event will be signaled
when the SCSI Request Packet completes.
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
EFIAPI
AtapiScsiPassThruGetNextDevice (
IN EFI_SCSI_PASS_THRU_PROTOCOL *This,
IN OUT UINT32 *Target,
IN OUT UINT64 *Lun
)
/*++
Routine Description:
Used to retrieve the list of legal Target IDs for SCSI devices
on a SCSI channel.
Arguments:
This - Protocol instance pointer.
Target - On input, a pointer to the Target ID of a SCSI
device present on the SCSI channel. On output,
a pointer to the Target ID of the next SCSI device
present on a SCSI channel. An input value of
0xFFFFFFFF retrieves the Target ID of the first
SCSI device present on a SCSI channel.
Lun - On input, a pointer to the LUN of a SCSI device
present on the SCSI channel. On output, a pointer
to the LUN of the next SCSI device present on
a SCSI channel.
Returns:
EFI_SUCCESS - The Target ID and Lun of the next SCSI device
on the SCSI channel was returned in Target and Lun.
EFI_NOT_FOUND - There are no more SCSI devices on this SCSI channel.
EFI_INVALID_PARAMETER - Target is not 0xFFFFFFFF,and Target and Lun were not
returned on a previous call to GetNextDevice().
--*/
;
EFI_STATUS
EFIAPI
AtapiScsiPassThruBuildDevicePath (
IN EFI_SCSI_PASS_THRU_PROTOCOL *This,
IN UINT32 Target,
IN UINT64 Lun,
IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
)
/*++
Routine Description:
Used to allocate and build a device path node for a SCSI device
on a SCSI channel. Would not build device path for a SCSI Host Controller.
Arguments:
This - Protocol instance pointer.
Target - The Target ID of the SCSI device for which
a device path node is to be allocated and built.
Lun - The LUN of the SCSI device for which a device
path node is to be allocated and built.
DevicePath - A pointer to a single device path node that
describes the SCSI device specified by
Target and Lun. This function is responsible
for allocating the buffer DevicePath with the boot
service AllocatePool(). It is the caller's
responsibility to free DevicePath when the caller
is finished with DevicePath.
Returns:
EFI_SUCCESS - The device path node that describes the SCSI device
specified by Target and Lun was allocated and
returned in DevicePath.
EFI_NOT_FOUND - The SCSI devices specified by Target and Lun does
not exist on the SCSI channel.
EFI_INVALID_PARAMETER - DevicePath is NULL.
EFI_OUT_OF_RESOURCES - There are not enough resources to allocate
DevicePath.
--*/
;
EFI_STATUS
EFIAPI
AtapiScsiPassThruGetTargetLun (
IN EFI_SCSI_PASS_THRU_PROTOCOL *This,
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
OUT UINT32 *Target,
OUT UINT64 *Lun
)
/*++
Routine Description:
Used to translate a device path node to a Target ID and LUN.
Arguments:
This - Protocol instance pointer.
DevicePath - A pointer to the device path node that
describes a SCSI device on the SCSI channel.
Target - A pointer to the Target ID of a SCSI device
on the SCSI channel.
Lun - A pointer to the LUN of a SCSI device on
the SCSI channel.
Returns:
EFI_SUCCESS - DevicePath was successfully translated to a
Target ID and LUN, and they were returned
in Target and Lun.
EFI_INVALID_PARAMETER - DevicePath/Target/Lun is NULL.
EFI_UNSUPPORTED - This driver does not support the device path
node type in DevicePath.
EFI_NOT_FOUND - A valid translation from DevicePath to a
Target ID and LUN does not exist.
--*/
;
EFI_STATUS
EFIAPI
AtapiScsiPassThruResetChannel (
IN EFI_SCSI_PASS_THRU_PROTOCOL *This
)
/*++
Routine Description:
Resets a SCSI channel.This operation resets all the
SCSI devices connected to the SCSI channel.
Arguments:
This - Protocol instance pointer.
Returns:
EFI_SUCCESS - The SCSI channel was reset.
EFI_UNSUPPORTED - The SCSI channel does not support
a channel reset operation.
EFI_DEVICE_ERROR - A device error occurred while
attempting to reset the SCSI channel.
EFI_TIMEOUT - A timeout occurred while attempting
to reset the SCSI channel.
--*/
;
EFI_STATUS
EFIAPI
AtapiScsiPassThruResetTarget (
IN EFI_SCSI_PASS_THRU_PROTOCOL *This,
IN UINT32 Target,
IN UINT64 Lun
)
/*++
Routine Description:
Resets a SCSI device that is connected to a SCSI channel.
Arguments:
This - Protocol instance pointer.
Target - The Target ID of the SCSI device to reset.
Lun - The LUN of the SCSI device to reset.
Returns:
EFI_SUCCESS - The SCSI device specified by Target and
Lun was reset.
EFI_UNSUPPORTED - The SCSI channel does not support a target
reset operation.
EFI_INVALID_PARAMETER - Target or Lun are invalid.
EFI_DEVICE_ERROR - A device error occurred while attempting
to reset the SCSI device specified by Target
and Lun.
EFI_TIMEOUT - A timeout occurred while attempting to reset
the SCSI device specified by Target and Lun.
--*/
;
EFI_STATUS
EFIAPI
AtapiExtScsiPassThruFunction (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
IN UINT8 *Target,
IN UINT64 Lun,
IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,
IN EFI_EVENT Event OPTIONAL
)
/*++
Routine Description:
Implements EFI_EXT_SCSI_PASS_THRU_PROTOCOL.PassThru() function.
Arguments:
This: The EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
Target: The Target ID of the ATAPI device to send the SCSI
Request Packet. To ATAPI devices attached on an IDE
Channel, Target ID 0 indicates Master device;Target
ID 1 indicates Slave device.
Lun: The LUN of the ATAPI device to send the SCSI Request
Packet. To the ATAPI device, Lun is always 0.
Packet: The SCSI Request Packet to send to the ATAPI device
specified by Target and Lun.
Event: If non-blocking I/O is not supported then Event is ignored,
and blocking I/O is performed.
If Event is NULL, then blocking I/O is performed.
If Event is not NULL and non blocking I/O is supported,
then non-blocking I/O is performed, and Event will be signaled
when the SCSI Request Packet completes.
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
EFIAPI
AtapiExtScsiPassThruGetNextTargetLun (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
IN OUT UINT8 **Target,
IN OUT UINT64 *Lun
)
/*++
Routine Description:
Used to retrieve the list of legal Target IDs for SCSI devices
on a SCSI channel.
Arguments:
This - Protocol instance pointer.
Target - On input, a pointer to the Target ID of a SCSI
device present on the SCSI channel. On output,
a pointer to the Target ID of the next SCSI device
present on a SCSI channel. An input value of
0xFFFFFFFF retrieves the Target ID of the first
SCSI device present on a SCSI channel.
Lun - On input, a pointer to the LUN of a SCSI device
present on the SCSI channel. On output, a pointer
to the LUN of the next SCSI device present on
a SCSI channel.
Returns:
EFI_SUCCESS - The Target ID and Lun of the next SCSI device
on the SCSI channel was returned in Target and Lun.
EFI_NOT_FOUND - There are no more SCSI devices on this SCSI channel.
EFI_INVALID_PARAMETER - Target is not 0xFFFFFFFF,and Target and Lun were not
returned on a previous call to GetNextDevice().
--*/
;
EFI_STATUS
EFIAPI
AtapiExtScsiPassThruBuildDevicePath (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
IN UINT8 *Target,
IN UINT64 Lun,
IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
)
/*++
Routine Description:
Used to allocate and build a device path node for a SCSI device
on a SCSI channel. Would not build device path for a SCSI Host Controller.
Arguments:
This - Protocol instance pointer.
Target - The Target ID of the SCSI device for which
a device path node is to be allocated and built.
Lun - The LUN of the SCSI device for which a device
path node is to be allocated and built.
DevicePath - A pointer to a single device path node that
describes the SCSI device specified by
Target and Lun. This function is responsible
for allocating the buffer DevicePath with the boot
service AllocatePool(). It is the caller's
responsibility to free DevicePath when the caller
is finished with DevicePath.
Returns:
EFI_SUCCESS - The device path node that describes the SCSI device
specified by Target and Lun was allocated and
returned in DevicePath.
EFI_NOT_FOUND - The SCSI devices specified by Target and Lun does
not exist on the SCSI channel.
EFI_INVALID_PARAMETER - DevicePath is NULL.
EFI_OUT_OF_RESOURCES - There are not enough resources to allocate
DevicePath.
--*/
;
EFI_STATUS
EFIAPI
AtapiExtScsiPassThruGetTargetLun (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
OUT UINT8 **Target,
OUT UINT64 *Lun
)
/*++
Routine Description:
Used to translate a device path node to a Target ID and LUN.
Arguments:
This - Protocol instance pointer.
DevicePath - A pointer to the device path node that
describes a SCSI device on the SCSI channel.
Target - A pointer to the Target ID of a SCSI device
on the SCSI channel.
Lun - A pointer to the LUN of a SCSI device on
the SCSI channel.
Returns:
EFI_SUCCESS - DevicePath was successfully translated to a
Target ID and LUN, and they were returned
in Target and Lun.
EFI_INVALID_PARAMETER - DevicePath/Target/Lun is NULL.
EFI_UNSUPPORTED - This driver does not support the device path
node type in DevicePath.
EFI_NOT_FOUND - A valid translation from DevicePath to a
Target ID and LUN does not exist.
--*/
;
EFI_STATUS
EFIAPI
AtapiExtScsiPassThruResetChannel (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This
)
/*++
Routine Description:
Resets a SCSI channel.This operation resets all the
SCSI devices connected to the SCSI channel.
Arguments:
This - Protocol instance pointer.
Returns:
EFI_SUCCESS - The SCSI channel was reset.
EFI_UNSUPPORTED - The SCSI channel does not support
a channel reset operation.
EFI_DEVICE_ERROR - A device error occurred while
attempting to reset the SCSI channel.
EFI_TIMEOUT - A timeout occurred while attempting
to reset the SCSI channel.
--*/
;
EFI_STATUS
EFIAPI
AtapiExtScsiPassThruResetTarget (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
IN UINT8 *Target,
IN UINT64 Lun
)
/*++
Routine Description:
Resets a SCSI device that is connected to a SCSI channel.
Arguments:
This - Protocol instance pointer.
Target - The Target ID of the SCSI device to reset.
Lun - The LUN of the SCSI device to reset.
Returns:
EFI_SUCCESS - The SCSI device specified by Target and
Lun was reset.
EFI_UNSUPPORTED - The SCSI channel does not support a target
reset operation.
EFI_INVALID_PARAMETER - Target or Lun are invalid.
EFI_DEVICE_ERROR - A device error occurred while attempting
to reset the SCSI device specified by Target
and Lun.
EFI_TIMEOUT - A timeout occurred while attempting to reset
the SCSI device specified by Target and Lun.
--*/
;
EFI_STATUS
EFIAPI
AtapiExtScsiPassThruGetNextTarget (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
IN OUT UINT8 **Target
)
/*++
Routine Description:
Used to retrieve the list of legal Target IDs for SCSI devices
on a SCSI channel.
Arguments:
This - Protocol instance pointer.
Target - On input, a pointer to the Target ID of a SCSI
device present on the SCSI channel. On output,
a pointer to the Target ID of the next SCSI device
present on a SCSI channel. An input value of
0xFFFFFFFF retrieves the Target ID of the first
SCSI device present on a SCSI channel.
Lun - On input, a pointer to the LUN of a SCSI device
present on the SCSI channel. On output, a pointer
to the LUN of the next SCSI device present on
a SCSI channel.
Returns:
EFI_SUCCESS - The Target ID and Lun of the next SCSI device
on the SCSI channel was returned in Target and Lun.
EFI_NOT_FOUND - There are no more SCSI devices on this SCSI channel.
EFI_INVALID_PARAMETER - Target is not 0xFFFFFFFF,and Target and Lun were not
returned on a previous call to GetNextDevice().
--*/
;
EFI_STATUS
CheckSCSIRequestPacket (
EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet
)
/*++
Routine Description:
Checks the parameters in the SCSI Request Packet to make sure
they are valid for a SCSI Pass Thru request.
Arguments:
Packet - The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
SubmitBlockingIoCommand (
ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,
UINT32 Target,
EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet
)
/*++
Routine Description:
Performs blocking I/O request.
Arguments:
AtapiScsiPrivate: Private data structure for the specified channel.
Target: The Target ID of the ATAPI device to send the SCSI
Request Packet. To ATAPI devices attached on an IDE
Channel, Target ID 0 indicates Master device;Target
ID 1 indicates Slave device.
Packet: The SCSI Request Packet to send to the ATAPI device
specified by Target.
Returns: EFI_STATUS
--*/
;
BOOLEAN
IsCommandValid (
EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet
)
/*++
Routine Description:
Checks the requested SCSI command:
Is it supported by this driver?
Is the Data transfer direction reasonable?
Arguments:
Packet - The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
CheckExtSCSIRequestPacket (
EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet
)
/*++
Routine Description:
Checks the parameters in the SCSI Request Packet to make sure
they are valid for a SCSI Pass Thru request.
Arguments:
Packet - The pointer of EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET
Returns:
EFI_STATUS
--*/
;
BOOLEAN
IsExtCommandValid (
EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet
)
/*++
Routine Description:
Checks the requested SCSI command:
Is it supported by this driver?
Is the Data transfer direction reasonable?
Arguments:
Packet - The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
SubmitExtBlockingIoCommand (
ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,
UINT8 Target,
EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet
)
/*++
Routine Description:
Performs blocking I/O request.
Arguments:
AtapiScsiPrivate: Private data structure for the specified channel.
Target: The Target ID of the ATAPI device to send the SCSI
Request Packet. To ATAPI devices attached on an IDE
Channel, Target ID 0 indicates Master device;Target
ID 1 indicates Slave device.
Packet: The SCSI Request Packet to send to the ATAPI device
specified by Target.
Returns: EFI_STATUS
--*/
;
EFI_STATUS
RequestSenseCommand (
ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,
UINT32 Target,
UINT64 Timeout,
VOID *SenseData,
UINT8 *SenseDataLength
)
/*++
Routine Description:
Sumbit request sense command
Arguments:
AtapiScsiPrivate - The pionter of ATAPI_SCSI_PASS_THRU_DEV
Target - The target ID
Timeout - The time to complete the command
SenseData - The buffer to fill in sense data
SenseDataLength - The length of buffer
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
AtapiPacketCommand (
ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,
UINT32 Target,
UINT8 *PacketCommand,
VOID *Buffer,
UINT32 *ByteCount,
DATA_DIRECTION Direction,
UINT64 TimeOutInMicroSeconds
)
/*++
Routine Description:
Submits ATAPI command packet to the specified ATAPI device.
Arguments:
AtapiScsiPrivate: Private data structure for the specified channel.
Target: The Target ID of the ATAPI device to send the SCSI
Request Packet. To ATAPI devices attached on an IDE
Channel, Target ID 0 indicates Master device;Target
ID 1 indicates Slave device.
PacketCommand: Points to the ATAPI command packet.
Buffer: Points to the transferred data.
ByteCount: When input,indicates the buffer size; when output,
indicates the actually transferred data size.
Direction: Indicates the data transfer direction.
TimeoutInMicroSeconds:
The timeout, in micro second units, to use for the
execution of this ATAPI command.
A TimeoutInMicroSeconds value of 0 means that
this function will wait indefinitely for the ATAPI
command to execute.
If TimeoutInMicroSeconds is greater than zero, then
this function will return EFI_TIMEOUT if the time
required to execute the ATAPI command is greater
than TimeoutInMicroSeconds.
Returns:
EFI_STATUS
--*/
;
UINT8
ReadPortB (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT16 Port
)
/*++
Routine Description:
Read one byte from a specified I/O port.
Arguments:
PciIo - The pointer of EFI_PCI_IO_PROTOCOL
Port - IO port
Returns:
A byte read out
--*/
;
UINT16
ReadPortW (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT16 Port
)
/*++
Routine Description:
Read one word from a specified I/O port.
Arguments:
PciIo - The pointer of EFI_PCI_IO_PROTOCOL
Port - IO port
Returns:
A word read out
--*/
;
VOID
WritePortB (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT16 Port,
IN UINT8 Data
)
/*++
Routine Description:
Write one byte to a specified I/O port.
Arguments:
PciIo - The pointer of EFI_PCI_IO_PROTOCOL
Port - IO port
Data - The data to write
Returns:
NONE
--*/
;
VOID
WritePortW (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT16 Port,
IN UINT16 Data
)
/*++
Routine Description:
Write one word to a specified I/O port.
Arguments:
PciIo - The pointer of EFI_PCI_IO_PROTOCOL
Port - IO port
Data - The data to write
Returns:
NONE
--*/
;
EFI_STATUS
StatusDRQClear (
ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,
UINT64 TimeOutInMicroSeconds
)
/*++
Routine Description:
Check whether DRQ is clear in the Status Register. (BSY must also be cleared)
If TimeoutInMicroSeconds is zero, this routine should wait infinitely for
DRQ clear. Otherwise, it will return EFI_TIMEOUT when specified time is
elapsed.
Arguments:
AtapiScsiPrivate - The pointer of ATAPI_SCSI_PASS_THRU_DEV
TimeoutInMicroSeconds - The time to wait for
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
AltStatusDRQClear (
ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,
UINT64 TimeOutInMicroSeconds
)
/*++
Routine Description:
Check whether DRQ is clear in the Alternate Status Register.
(BSY must also be cleared).If TimeoutInMicroSeconds is zero, this routine should
wait infinitely for DRQ clear. Otherwise, it will return EFI_TIMEOUT when specified time is
elapsed.
Arguments:
AtapiScsiPrivate - The pointer of ATAPI_SCSI_PASS_THRU_DEV
TimeoutInMicroSeconds - The time to wait for
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
StatusDRQReady (
ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,
UINT64 TimeOutInMicroSeconds
)
/*++
Routine Description:
Check whether DRQ is ready in the Status Register. (BSY must also be cleared)
If TimeoutInMicroSeconds is zero, this routine should wait infinitely for
DRQ ready. Otherwise, it will return EFI_TIMEOUT when specified time is
elapsed.
Arguments:
AtapiScsiPrivate - The pointer of ATAPI_SCSI_PASS_THRU_DEV
TimeoutInMicroSeconds - The time to wait for
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
AltStatusDRQReady (
ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,
UINT64 TimeOutInMicroSeconds
)
/*++
Routine Description:
Check whether DRQ is ready in the Alternate Status Register.
(BSY must also be cleared)
If TimeoutInMicroSeconds is zero, this routine should wait infinitely for
DRQ ready. Otherwise, it will return EFI_TIMEOUT when specified time is
elapsed.
Arguments:
AtapiScsiPrivate - The pointer of ATAPI_SCSI_PASS_THRU_DEV
TimeoutInMicroSeconds - The time to wait for
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
StatusWaitForBSYClear (
ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,
UINT64 TimeoutInMicroSeconds
)
/*++
Routine Description:
Check whether BSY is clear in the Status Register.
If TimeoutInMicroSeconds is zero, this routine should wait infinitely for
BSY clear. Otherwise, it will return EFI_TIMEOUT when specified time is
elapsed.
Arguments:
AtapiScsiPrivate - The pointer of ATAPI_SCSI_PASS_THRU_DEV
TimeoutInMicroSeconds - The time to wait for
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
AltStatusWaitForBSYClear (
ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,
UINT64 TimeoutInMicroSeconds
)
/*++
Routine Description:
Check whether BSY is clear in the Alternate Status Register.
If TimeoutInMicroSeconds is zero, this routine should wait infinitely for
BSY clear. Otherwise, it will return EFI_TIMEOUT when specified time is
elapsed.
Arguments:
AtapiScsiPrivate - The pointer of ATAPI_SCSI_PASS_THRU_DEV
TimeoutInMicroSeconds - The time to wait for
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
StatusDRDYReady (
ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,
UINT64 TimeoutInMicroSeconds
)
/*++
Routine Description:
Check whether DRDY is ready in the Status Register.
(BSY must also be cleared)
If TimeoutInMicroSeconds is zero, this routine should wait infinitely for
DRDY ready. Otherwise, it will return EFI_TIMEOUT when specified time is
elapsed.
Arguments:
AtapiScsiPrivate - The pointer of ATAPI_SCSI_PASS_THRU_DEV
TimeoutInMicroSeconds - The time to wait for
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
AltStatusDRDYReady (
ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,
UINT64 TimeoutInMicroSeconds
)
/*++
Routine Description:
Check whether DRDY is ready in the Alternate Status Register.
(BSY must also be cleared)
If TimeoutInMicroSeconds is zero, this routine should wait infinitely for
DRDY ready. Otherwise, it will return EFI_TIMEOUT when specified time is
elapsed.
Arguments:
AtapiScsiPrivate - The pointer of ATAPI_SCSI_PASS_THRU_DEV
TimeoutInMicroSeconds - The time to wait for
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
AtapiPassThruPioReadWriteData (
ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,
UINT16 *Buffer,
UINT32 *ByteCount,
DATA_DIRECTION Direction,
UINT64 TimeOutInMicroSeconds
)
/*++
Routine Description:
Performs data transfer between ATAPI device and host after the
ATAPI command packet is sent.
Arguments:
AtapiScsiPrivate: Private data structure for the specified channel.
Buffer: Points to the transferred data.
ByteCount: When input,indicates the buffer size; when output,
indicates the actually transferred data size.
Direction: Indicates the data transfer direction.
TimeoutInMicroSeconds:
The timeout, in micro second units, to use for the
execution of this ATAPI command.
A TimeoutInMicroSeconds value of 0 means that
this function will wait indefinitely for the ATAPI
command to execute.
If TimeoutInMicroSeconds is greater than zero, then
this function will return EFI_TIMEOUT if the time
required to execute the ATAPI command is greater
than TimeoutInMicroSeconds.
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
AtapiPassThruCheckErrorStatus (
ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate
)
/*++
Routine Description:
Check Error Register for Error Information.
Arguments:
AtapiScsiPrivate - The pointer of ATAPI_SCSI_PASS_THRU_DEV
Returns:
EFI_STATUS
--*/
;
EFI_STATUS
GetIdeRegistersBaseAddr (
IN EFI_PCI_IO_PROTOCOL *PciIo,
OUT IDE_REGISTERS_BASE_ADDR *IdeRegsBaseAddr
)
/*++
Routine Description:
Get IDE IO port registers' base addresses by mode. In 'Compatibility' mode,
use fixed addresses. In Native-PCI mode, get base addresses from BARs in
the PCI IDE controller's Configuration Space.
Arguments:
PciIo - Pointer to the EFI_PCI_IO_PROTOCOL instance
IdeRegsBaseAddr - Pointer to IDE_REGISTERS_BASE_ADDR to
receive IDE IO port registers' base addresses
Returns:
EFI_STATUS
--*/
;
VOID
InitAtapiIoPortRegisters (
IN ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate,
IN IDE_REGISTERS_BASE_ADDR *IdeRegsBaseAddr
)
/*++
Routine Description:
Initialize each Channel's Base Address of CommandBlock and ControlBlock.
Arguments:
AtapiScsiPrivate - The pointer of ATAPI_SCSI_PASS_THRU_DEV
IdeRegsBaseAddr - The pointer of IDE_REGISTERS_BASE_ADDR
Returns:
None
--*/
;
/**
Installs Scsi Pass Thru and/or Ext Scsi Pass Thru
protocols based on feature flags.
@param Controller The controller handle to
install these protocols on.
@param AtapiScsiPrivate A pointer to the protocol private
data structure.
@retval EFI_SUCCESS The installation succeeds.
@retval other The installation fails.
**/
EFI_STATUS
InstallScsiPassThruProtocols (
IN EFI_HANDLE *ControllerHandle,
IN ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate
);
#endif
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