diff options
| author | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-11-20 07:05:44 +0000 |
|---|---|---|
| committer | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-11-20 07:05:44 +0000 |
| commit | 823f7d4f93b79c12ba521e7193bf1136ff0f2bfa (patch) | |
| tree | 6535c0a0720d61a5ad609abea0d62447e63b0101 /OptionRomPkg/AtapiPassThruDxe | |
| parent | 61066b8d7475929f9f453e1ebea4f72d0c020096 (diff) | |
| download | edk2-platforms-823f7d4f93b79c12ba521e7193bf1136ff0f2bfa.tar.xz | |
Add OptionRomPkg, it contains AtapiPassThru driver for the test purpose of Scsi Bus support.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4309 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OptionRomPkg/AtapiPassThruDxe')
| -rw-r--r-- | OptionRomPkg/AtapiPassThruDxe/AtapiPassThru.c | 3394 | ||||
| -rw-r--r-- | OptionRomPkg/AtapiPassThruDxe/AtapiPassThru.h | 1625 | ||||
| -rw-r--r-- | OptionRomPkg/AtapiPassThruDxe/AtapiPassThruDxe.inf | 65 | ||||
| -rw-r--r-- | OptionRomPkg/AtapiPassThruDxe/ComponentName.c | 175 |
4 files changed, 5259 insertions, 0 deletions
diff --git a/OptionRomPkg/AtapiPassThruDxe/AtapiPassThru.c b/OptionRomPkg/AtapiPassThruDxe/AtapiPassThru.c new file mode 100644 index 0000000000..b15f292e93 --- /dev/null +++ b/OptionRomPkg/AtapiPassThruDxe/AtapiPassThru.c @@ -0,0 +1,3394 @@ +/** @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.
+
+**/
+
+#include "AtapiPassThru.h"
+
+
+static SCSI_COMMAND_SET gEndTable = { 0xff, (DATA_DIRECTION) 0xff };
+
+///
+/// This table contains all the supported ATAPI commands.
+///
+static SCSI_COMMAND_SET gSupportedATAPICommands[] = {
+ { OP_INQUIRY, DataIn },
+ { OP_LOAD_UNLOAD_CD, NoData },
+ { OP_MECHANISM_STATUS, DataIn },
+ { OP_MODE_SELECT_10, DataOut },
+ { OP_MODE_SENSE_10, DataIn },
+ { OP_PAUSE_RESUME, NoData },
+ { OP_PLAY_AUDIO_10, DataIn },
+ { OP_PLAY_AUDIO_MSF, DataIn },
+ { OP_PLAY_CD, DataIn },
+ { OP_PLAY_CD_MSF, DataIn },
+ { OP_PREVENT_ALLOW_MEDIUM_REMOVAL,NoData },
+ { OP_READ_10, DataIn },
+ { OP_READ_12, DataIn },
+ { OP_READ_CAPACITY, DataIn },
+ { OP_READ_CD, DataIn },
+ { OP_READ_CD_MSF, DataIn },
+ { OP_READ_HEADER, DataIn },
+ { OP_READ_SUB_CHANNEL, DataIn },
+ { OP_READ_TOC, DataIn },
+ { OP_REQUEST_SENSE, DataIn },
+ { OP_SCAN, NoData },
+ { OP_SEEK_10, NoData },
+ { OP_SET_CD_SPEED, DataOut },
+ { OP_STOPPLAY_SCAN, NoData },
+ { OP_START_STOP_UNIT, NoData },
+ { OP_TEST_UNIT_READY, NoData },
+ { OP_FORMAT_UNIT, DataOut },
+ { OP_READ_FORMAT_CAPACITIES, DataIn },
+ { OP_VERIFY, DataOut },
+ { OP_WRITE_10, DataOut },
+ { OP_WRITE_12, DataOut },
+ { OP_WRITE_AND_VERIFY, DataOut },
+ { 0xff, (DATA_DIRECTION) 0xff }
+};
+
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_SCSI_PASS_THRU_MODE gScsiPassThruMode = {
+ L"ATAPI Controller",
+ L"ATAPI Channel",
+ 4,
+ EFI_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL | EFI_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL,
+ 0
+};
+
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_SCSI_PASS_THRU_PROTOCOL gScsiPassThruProtocolTemplate = {
+ &gScsiPassThruMode,
+ AtapiScsiPassThruFunction,
+ AtapiScsiPassThruGetNextDevice,
+ AtapiScsiPassThruBuildDevicePath,
+ AtapiScsiPassThruGetTargetLun,
+ AtapiScsiPassThruResetChannel,
+ AtapiScsiPassThruResetTarget
+};
+
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_EXT_SCSI_PASS_THRU_MODE gExtScsiPassThruMode = {
+ 4,
+ EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL | EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL,
+ 0
+};
+
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_EXT_SCSI_PASS_THRU_PROTOCOL gExtScsiPassThruProtocolTemplate = {
+ &gExtScsiPassThruMode,
+ AtapiExtScsiPassThruFunction,
+ AtapiExtScsiPassThruGetNextTargetLun,
+ AtapiExtScsiPassThruBuildDevicePath,
+ AtapiExtScsiPassThruGetTargetLun,
+ AtapiExtScsiPassThruResetChannel,
+ AtapiExtScsiPassThruResetTarget,
+ AtapiExtScsiPassThruGetNextTarget
+};
+
+EFI_DRIVER_BINDING_PROTOCOL gAtapiScsiPassThruDriverBinding = {
+ AtapiScsiPassThruDriverBindingSupported,
+ AtapiScsiPassThruDriverBindingStart,
+ AtapiScsiPassThruDriverBindingStop,
+ 0x10,
+ NULL,
+ NULL
+};
+
+EFI_STATUS
+EFIAPI
+AtapiScsiPassThruDriverBindingSupported (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ )
+/*++
+
+Routine Description:
+ Test to see if this driver supports ControllerHandle. Any ControllerHandle
+ that has gEfiPciIoProtocolGuid installed and is IDE Controller it will be supported.
+
+Arguments:
+
+ This - Protocol instance pointer.
+ Controller - Handle of device to test
+ RemainingDevicePath - Not used
+
+Returns:
+ EFI_STATUS
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ PCI_TYPE00 Pci;
+
+
+ //
+ // Open the IO Abstraction(s) needed to perform the supported test
+ //
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ (VOID **) &PciIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ //
+ // Use the PCI I/O Protocol to see if Controller is a IDE Controller that
+ // can be managed by this driver. Read the PCI Configuration Header
+ // for this device.
+ //
+ Status = PciIo->Pci.Read (
+ PciIo,
+ EfiPciIoWidthUint32,
+ 0,
+ sizeof (Pci) / sizeof (UINT32),
+ &Pci
+ );
+ if (EFI_ERROR (Status)) {
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ return EFI_UNSUPPORTED;
+ }
+
+ if (Pci.Hdr.ClassCode[2] != PCI_CLASS_MASS_STORAGE || Pci.Hdr.ClassCode[1] != PCI_CLASS_IDE) {
+
+ Status = EFI_UNSUPPORTED;
+ }
+
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+
+ return Status;
+}
+
+EFI_STATUS
+EFIAPI
+AtapiScsiPassThruDriverBindingStart (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ )
+/*++
+
+Routine Description:
+ Create handles for IDE channels specified by RemainingDevicePath.
+ Install SCSI Pass Thru Protocol onto each created handle.
+
+Arguments:
+
+ This - Protocol instance pointer.
+ Controller - Handle of device to test
+ RemainingDevicePath - Not used
+
+Returns:
+ EFI_STATUS
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ UINT64 Supports;
+ UINT64 OriginalPciAttributes;
+
+ PciIo = NULL;
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ (VOID **) &PciIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Save original PCI attributes
+ //
+ Status = PciIo->Attributes (
+ PciIo,
+ EfiPciIoAttributeOperationGet,
+ 0,
+ &OriginalPciAttributes
+ );
+
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = PciIo->Attributes (
+ PciIo,
+ EfiPciIoAttributeOperationSupported,
+ 0,
+ &Supports
+ );
+ if (!EFI_ERROR (Status)) {
+ Supports &= (EFI_PCI_DEVICE_ENABLE |
+ EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO |
+ EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO);
+ Status = PciIo->Attributes (
+ PciIo,
+ EfiPciIoAttributeOperationEnable,
+ Supports,
+ NULL
+ );
+ }
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Create SCSI Pass Thru instance for the IDE channel.
+ //
+ Status = RegisterAtapiScsiPassThru (This, Controller, PciIo, OriginalPciAttributes);
+
+Done:
+ if (EFI_ERROR (Status)) {
+ //
+ // Restore original PCI attributes
+ //
+ PciIo->Attributes (
+ PciIo,
+ EfiPciIoAttributeOperationSet,
+ OriginalPciAttributes,
+ NULL
+ );
+
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ }
+
+ return Status;
+}
+
+EFI_STATUS
+EFIAPI
+AtapiScsiPassThruDriverBindingStop (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer
+ )
+/*++
+
+Routine Description:
+
+ Stop this driver on ControllerHandle. Support stoping any child handles
+ created by this driver.
+
+Arguments:
+
+ This - Protocol instance pointer.
+ Controller - Handle of device to stop driver on
+ NumberOfChildren - Number of Children in the ChildHandleBuffer
+ ChildHandleBuffer - List of handles for the children we need to stop.
+
+Returns:
+
+ EFI_STATUS
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_SCSI_PASS_THRU_PROTOCOL *ScsiPassThru;
+ EFI_EXT_SCSI_PASS_THRU_PROTOCOL *ExtScsiPassThru;
+ ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;
+
+ if (FeaturePcdGet (PcdSupportScsiPassThru)) {
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiScsiPassThruProtocolGuid,
+ (VOID **) &ScsiPassThru,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ AtapiScsiPrivate = ATAPI_SCSI_PASS_THRU_DEV_FROM_THIS (ScsiPassThru);
+ if (FeaturePcdGet (PcdSupportExtScsiPassThru)) {
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ Controller,
+ &gEfiScsiPassThruProtocolGuid,
+ &AtapiScsiPrivate->ScsiPassThru,
+ &gEfiExtScsiPassThruProtocolGuid,
+ &AtapiScsiPrivate->ExtScsiPassThru,
+ NULL
+ );
+ } else {
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ Controller,
+ &gEfiScsiPassThruProtocolGuid,
+ &AtapiScsiPrivate->ScsiPassThru,
+ NULL
+ );
+ }
+ } else {
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiExtScsiPassThruProtocolGuid,
+ (VOID **) &ExtScsiPassThru,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ AtapiScsiPrivate = ATAPI_EXT_SCSI_PASS_THRU_DEV_FROM_THIS (ExtScsiPassThru);
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ Controller,
+ &gEfiExtScsiPassThruProtocolGuid,
+ &AtapiScsiPrivate->ExtScsiPassThru,
+ NULL
+ );
+ }
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Restore original PCI attributes
+ //
+ AtapiScsiPrivate->PciIo->Attributes (
+ AtapiScsiPrivate->PciIo,
+ EfiPciIoAttributeOperationSet,
+ AtapiScsiPrivate->OriginalPciAttributes,
+ NULL
+ );
+
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+
+ gBS->FreePool (AtapiScsiPrivate);
+
+ return EFI_SUCCESS;
+}
+
+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 Status;
+ ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;
+ IDE_REGISTERS_BASE_ADDR IdeRegsBaseAddr[ATAPI_MAX_CHANNEL];
+
+ AtapiScsiPrivate = AllocateZeroPool (sizeof (ATAPI_SCSI_PASS_THRU_DEV));
+ if (AtapiScsiPrivate == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ AtapiScsiPrivate->Signature = ATAPI_SCSI_PASS_THRU_DEV_SIGNATURE;
+ AtapiScsiPrivate->Handle = Controller;
+
+ //
+ // will reset the IoPort inside each API function.
+ //
+ AtapiScsiPrivate->IoPort = NULL;
+ AtapiScsiPrivate->PciIo = PciIo;
+ AtapiScsiPrivate->OriginalPciAttributes = OriginalPciAttributes;
+
+ //
+ // Obtain IDE IO port registers' base addresses
+ //
+ Status = GetIdeRegistersBaseAddr (PciIo, IdeRegsBaseAddr);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ InitAtapiIoPortRegisters(AtapiScsiPrivate, IdeRegsBaseAddr);
+
+ //
+ // Initialize the LatestTargetId to MAX_TARGET_ID.
+ //
+ AtapiScsiPrivate->LatestTargetId = MAX_TARGET_ID;
+ AtapiScsiPrivate->LatestLun = 0;
+
+ Status = InstallScsiPassThruProtocols (&Controller, AtapiScsiPrivate);
+
+ return Status;
+}
+
+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
+
+--*/
+{
+ ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;
+ EFI_STATUS Status;
+
+ AtapiScsiPrivate = ATAPI_SCSI_PASS_THRU_DEV_FROM_THIS (This);
+
+ //
+ // Target is not allowed beyond MAX_TARGET_ID
+ //
+ if ((Target > MAX_TARGET_ID) || (Lun != 0)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // check the data fields in Packet parameter.
+ //
+ Status = CheckSCSIRequestPacket (Packet);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // If Request Packet targets at the IDE channel itself,
+ // do nothing.
+ //
+ if (Target == This->Mode->AdapterId) {
+ Packet->TransferLength = 0;
+ return EFI_SUCCESS;
+ }
+
+ //
+ // According to Target ID, reset the Atapi I/O Register mapping
+ // (Target Id in [0,1] area, using AtapiIoPortRegisters[0],
+ // Target Id in [2,3] area, using AtapiIoPortRegisters[1]
+ //
+ if ((Target / 2) == 0) {
+ Target = Target % 2;
+ AtapiScsiPrivate->IoPort = &AtapiScsiPrivate->AtapiIoPortRegisters[0];
+ } else {
+ Target = Target % 2;
+ AtapiScsiPrivate->IoPort = &AtapiScsiPrivate->AtapiIoPortRegisters[1];
+ }
+
+ //
+ // the ATAPI SCSI interface does not support non-blocking I/O
+ // ignore the Event parameter
+ //
+ // Performs blocking I/O.
+ //
+ Status = SubmitBlockingIoCommand (AtapiScsiPrivate, Target, Packet);
+ return 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().
+--*/
+{
+ ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;
+
+ //
+ // Retrieve Device Private Data Structure.
+ //
+ AtapiScsiPrivate = ATAPI_SCSI_PASS_THRU_DEV_FROM_THIS (This);
+
+ //
+ // Check whether Target is valid.
+ //
+ if (Target == NULL || Lun == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if ((*Target != 0xFFFFFFFF) &&
+ ((*Target != AtapiScsiPrivate->LatestTargetId) ||
+ (*Lun != AtapiScsiPrivate->LatestLun))) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (*Target == MAX_TARGET_ID) {
+ return EFI_NOT_FOUND;
+ }
+
+ if (*Target == 0xFFFFFFFF) {
+ *Target = 0;
+ } else {
+ *Target = AtapiScsiPrivate->LatestTargetId + 1;
+ }
+
+ *Lun = 0;
+
+ //
+ // Update the LatestTargetId.
+ //
+ AtapiScsiPrivate->LatestTargetId = *Target;
+ AtapiScsiPrivate->LatestLun = *Lun;
+
+ return EFI_SUCCESS;
+
+}
+
+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_DEV_PATH *Node;
+
+
+ //
+ // Validate parameters passed in.
+ //
+
+ if (DevicePath == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // can not build device path for the SCSI Host Controller.
+ //
+ if ((Target > (MAX_TARGET_ID - 1)) || (Lun != 0)) {
+ return EFI_NOT_FOUND;
+ }
+
+ Node = AllocateZeroPool (sizeof (EFI_DEV_PATH));
+ if (Node == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Node->DevPath.Type = MESSAGING_DEVICE_PATH;
+ Node->DevPath.SubType = MSG_ATAPI_DP;
+ SetDevicePathNodeLength (&Node->DevPath, sizeof (ATAPI_DEVICE_PATH));
+
+ Node->Atapi.PrimarySecondary = (UINT8) (Target / 2);
+ Node->Atapi.SlaveMaster = (UINT8) (Target % 2);
+ Node->Atapi.Lun = (UINT16) Lun;
+
+ *DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) Node;
+
+ return EFI_SUCCESS;
+}
+
+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_DEV_PATH *Node;
+
+ //
+ // Validate parameters passed in.
+ //
+ if (DevicePath == NULL || Target == NULL || Lun == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Check whether the DevicePath belongs to SCSI_DEVICE_PATH
+ //
+ if ((DevicePath->Type != MESSAGING_DEVICE_PATH) ||
+ (DevicePath->SubType != MSG_ATAPI_DP) ||
+ (DevicePathNodeLength(DevicePath) != sizeof(ATAPI_DEVICE_PATH))) {
+ return EFI_UNSUPPORTED;
+ }
+
+ Node = (EFI_DEV_PATH *) DevicePath;
+
+ *Target = Node->Atapi.PrimarySecondary * 2 + Node->Atapi.SlaveMaster;
+ *Lun = Node->Atapi.Lun;
+
+ if (*Target > (MAX_TARGET_ID - 1) || *Lun != 0) {
+ return EFI_NOT_FOUND;
+ }
+
+ return EFI_SUCCESS;
+}
+
+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.
+--*/
+{
+ UINT8 DeviceControlValue;
+ ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;
+ UINT8 Index;
+ BOOLEAN ResetFlag;
+
+ AtapiScsiPrivate = ATAPI_SCSI_PASS_THRU_DEV_FROM_THIS (This);
+ ResetFlag = FALSE;
+
+ //
+ // Reset both Primary channel and Secondary channel.
+ // so, the IoPort pointer must point to the right I/O Register group
+ //
+ for (Index = 0; Index < 2; Index++) {
+ //
+ // Reset
+ //
+ AtapiScsiPrivate->IoPort = &AtapiScsiPrivate->AtapiIoPortRegisters[Index];
+
+ DeviceControlValue = 0;
+ //
+ // set SRST bit to initiate soft reset
+ //
+ DeviceControlValue |= SRST;
+ //
+ // disable Interrupt
+ //
+ DeviceControlValue |= bit (1);
+ WritePortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Alt.DeviceControl,
+ DeviceControlValue
+ );
+
+ //
+ // Wait 10us
+ //
+ gBS->Stall (10);
+
+ //
+ // Clear SRST bit
+ // 0xfb:1111,1011
+ //
+ DeviceControlValue &= 0xfb;
+
+ WritePortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Alt.DeviceControl, DeviceControlValue);
+
+ //
+ // slave device needs at most 31s to clear BSY
+ //
+ if (StatusWaitForBSYClear (AtapiScsiPrivate, 31000000) != EFI_TIMEOUT) {
+ ResetFlag = TRUE;
+ }
+ }
+
+ if (ResetFlag) {
+ return EFI_SUCCESS;
+ }
+
+ return EFI_TIMEOUT;
+}
+
+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.
+--*/
+{
+ ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;
+ UINT8 Command;
+ UINT8 DeviceSelect;
+
+ AtapiScsiPrivate = ATAPI_SCSI_PASS_THRU_DEV_FROM_THIS (This);
+
+ if ((Target > MAX_TARGET_ID) || (Lun != 0)) {
+ return EFI_INVALID_PARAMETER;
+ }
+ //
+ // Directly return EFI_SUCCESS if want to reset the host controller
+ //
+ if (Target == This->Mode->AdapterId) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // According to Target ID, reset the Atapi I/O Register mapping
+ // (Target Id in [0,1] area, using AtapiIoPortRegisters[0],
+ // Target Id in [2,3] area, using AtapiIoPortRegisters[1]
+ //
+ if ((Target / 2) == 0) {
+ AtapiScsiPrivate->IoPort = &AtapiScsiPrivate->AtapiIoPortRegisters[0];
+ } else {
+ AtapiScsiPrivate->IoPort = &AtapiScsiPrivate->AtapiIoPortRegisters[1];
+ }
+
+ //
+ // for ATAPI device, no need to wait DRDY ready after device selecting.
+ //
+ // bit7 and bit5 are both set to 1 for backward compatibility
+ //
+ DeviceSelect = (UINT8) (((bit (7) | bit (5)) | (Target << 4)));
+ WritePortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Head, DeviceSelect);
+
+ Command = ATAPI_SOFT_RESET_CMD;
+ WritePortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Reg.Command, Command);
+
+ //
+ // BSY clear is the only status return to the host by the device
+ // when reset is complete.
+ // slave device needs at most 31s to clear BSY
+ //
+ if (EFI_ERROR (StatusWaitForBSYClear (AtapiScsiPrivate, 31000000))) {
+ return EFI_TIMEOUT;
+ }
+
+ //
+ // stall 5 seconds to make the device status stable
+ //
+ gBS->Stall (5000000);
+
+ return EFI_SUCCESS;
+}
+
+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 Status;
+ ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;
+ UINT8 TargetId;
+
+ AtapiScsiPrivate = ATAPI_EXT_SCSI_PASS_THRU_DEV_FROM_THIS (This);
+
+ //
+ // For ATAPI device, UINT8 is enough to represent the SCSI ID on channel.
+ //
+ TargetId = Target[0];
+
+ //
+ // Target is not allowed beyond MAX_TARGET_ID
+ //
+ if ((TargetId > MAX_TARGET_ID) || (Lun != 0)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // check the data fields in Packet parameter.
+ //
+ Status = CheckExtSCSIRequestPacket (Packet);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // If Request Packet targets at the IDE channel itself,
+ // do nothing.
+ //
+ if (TargetId == (UINT8)This->Mode->AdapterId) {
+ Packet->InTransferLength = Packet->OutTransferLength = 0;
+ return EFI_SUCCESS;
+ }
+
+ //
+ // According to Target ID, reset the Atapi I/O Register mapping
+ // (Target Id in [0,1] area, using AtapiIoPortRegisters[0],
+ // Target Id in [2,3] area, using AtapiIoPortRegisters[1]
+ //
+ if ((TargetId / 2) == 0) {
+ TargetId = (UINT8) (TargetId % 2);
+ AtapiScsiPrivate->IoPort = &AtapiScsiPrivate->AtapiIoPortRegisters[0];
+ } else {
+ TargetId = (UINT8) (TargetId % 2);
+ AtapiScsiPrivate->IoPort = &AtapiScsiPrivate->AtapiIoPortRegisters[1];
+ }
+
+ //
+ // the ATAPI SCSI interface does not support non-blocking I/O
+ // ignore the Event parameter
+ //
+ // Performs blocking I/O.
+ //
+ Status = SubmitExtBlockingIoCommand (AtapiScsiPrivate, TargetId, Packet);
+ return 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().
+--*/
+{
+ UINT8 ByteIndex;
+ UINT8 TargetId;
+ UINT8 ScsiId[TARGET_MAX_BYTES];
+ ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;
+
+ //
+ // Retrieve Device Private Data Structure.
+ //
+ AtapiScsiPrivate = ATAPI_EXT_SCSI_PASS_THRU_DEV_FROM_THIS (This);
+
+ //
+ // Check whether Target is valid.
+ //
+ if (*Target == NULL || Lun == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ SetMem (ScsiId, TARGET_MAX_BYTES, 0xFF);
+
+ TargetId = (*Target)[0];
+
+ //
+ // For ATAPI device, we use UINT8 to represent the SCSI ID on channel.
+ //
+ if (CompareMem(*Target, ScsiId, TARGET_MAX_BYTES) != 0) {
+ for (ByteIndex = 1; ByteIndex < TARGET_MAX_BYTES; ByteIndex++) {
+ if ((*Target)[ByteIndex] != 0) {
+ return EFI_INVALID_PARAMETER;
+ }
+ }
+ }
+
+ if ((CompareMem(*Target, ScsiId, TARGET_MAX_BYTES) != 0) &&
+ ((TargetId != AtapiScsiPrivate->LatestTargetId) ||
+ (*Lun != AtapiScsiPrivate->LatestLun))) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (TargetId == MAX_TARGET_ID) {
+ return EFI_NOT_FOUND;
+ }
+
+ if (CompareMem(*Target, ScsiId, TARGET_MAX_BYTES) == 0) {
+ SetMem (*Target, TARGET_MAX_BYTES,0);
+ } else {
+ (*Target)[0] = (UINT8) (AtapiScsiPrivate->LatestTargetId + 1);
+ }
+
+ *Lun = 0;
+
+ //
+ // Update the LatestTargetId.
+ //
+ AtapiScsiPrivate->LatestTargetId = (*Target)[0];
+ AtapiScsiPrivate->LatestLun = *Lun;
+
+ return EFI_SUCCESS;
+
+}
+
+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_DEV_PATH *Node;
+ UINT8 TargetId;
+
+ TargetId = Target[0];
+
+ //
+ // Validate parameters passed in.
+ //
+
+ if (DevicePath == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // can not build device path for the SCSI Host Controller.
+ //
+ if ((TargetId > (MAX_TARGET_ID - 1)) || (Lun != 0)) {
+ return EFI_NOT_FOUND;
+ }
+
+ Node = AllocateZeroPool (sizeof (EFI_DEV_PATH));
+ if (Node == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Node->DevPath.Type = MESSAGING_DEVICE_PATH;
+ Node->DevPath.SubType = MSG_ATAPI_DP;
+ SetDevicePathNodeLength (&Node->DevPath, sizeof (ATAPI_DEVICE_PATH));
+
+ Node->Atapi.PrimarySecondary = (UINT8) (TargetId / 2);
+ Node->Atapi.SlaveMaster = (UINT8) (TargetId % 2);
+ Node->Atapi.Lun = (UINT16) Lun;
+
+ *DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) Node;
+
+ return EFI_SUCCESS;
+}
+
+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_DEV_PATH *Node;
+
+ //
+ // Validate parameters passed in.
+ //
+ if (DevicePath == NULL || Target == NULL || Lun == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Check whether the DevicePath belongs to SCSI_DEVICE_PATH
+ //
+ if ((DevicePath->Type != MESSAGING_DEVICE_PATH) ||
+ (DevicePath->SubType != MSG_ATAPI_DP) ||
+ (DevicePathNodeLength(DevicePath) != sizeof(ATAPI_DEVICE_PATH))) {
+ return EFI_UNSUPPORTED;
+ }
+
+ ZeroMem (*Target, TARGET_MAX_BYTES);
+
+ Node = (EFI_DEV_PATH *) DevicePath;
+
+ (*Target)[0] = (UINT8) (Node->Atapi.PrimarySecondary * 2 + Node->Atapi.SlaveMaster);
+ *Lun = Node->Atapi.Lun;
+
+ if ((*Target)[0] > (MAX_TARGET_ID - 1) || *Lun != 0) {
+ return EFI_NOT_FOUND;
+ }
+
+ return EFI_SUCCESS;
+}
+
+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.
+--*/
+{
+ UINT8 DeviceControlValue;
+ UINT8 Index;
+ ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;
+ BOOLEAN ResetFlag;
+
+ AtapiScsiPrivate = ATAPI_EXT_SCSI_PASS_THRU_DEV_FROM_THIS (This);
+ ResetFlag = FALSE;
+ //
+ // Reset both Primary channel and Secondary channel.
+ // so, the IoPort pointer must point to the right I/O Register group
+ // And if there is a channel reset successfully, return EFI_SUCCESS.
+ //
+ for (Index = 0; Index < 2; Index++) {
+ //
+ // Reset
+ //
+ AtapiScsiPrivate->IoPort = &AtapiScsiPrivate->AtapiIoPortRegisters[Index];
+
+ DeviceControlValue = 0;
+ //
+ // set SRST bit to initiate soft reset
+ //
+ DeviceControlValue |= SRST;
+ //
+ // disable Interrupt
+ //
+ DeviceControlValue |= bit (1);
+ WritePortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Alt.DeviceControl,
+ DeviceControlValue
+ );
+
+ //
+ // Wait 10us
+ //
+ gBS->Stall (10);
+
+ //
+ // Clear SRST bit
+ // 0xfb:1111,1011
+ //
+ DeviceControlValue &= 0xfb;
+
+ WritePortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Alt.DeviceControl, DeviceControlValue);
+
+ //
+ // slave device needs at most 31s to clear BSY
+ //
+ if (StatusWaitForBSYClear (AtapiScsiPrivate, 31000000) != EFI_TIMEOUT) {
+ ResetFlag = TRUE;
+ }
+ }
+
+ if (ResetFlag) {
+ return EFI_SUCCESS;
+ }
+
+ return EFI_TIMEOUT;
+}
+
+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.
+--*/
+{
+ UINT8 Command;
+ UINT8 DeviceSelect;
+ UINT8 TargetId;
+ ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;
+
+ AtapiScsiPrivate = ATAPI_EXT_SCSI_PASS_THRU_DEV_FROM_THIS (This);
+ TargetId = Target[0];
+
+ if ((TargetId > MAX_TARGET_ID) || (Lun != 0)) {
+ return EFI_INVALID_PARAMETER;
+ }
+ //
+ // Directly return EFI_SUCCESS if want to reset the host controller
+ //
+ if (TargetId == This->Mode->AdapterId) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // According to Target ID, reset the Atapi I/O Register mapping
+ // (Target Id in [0,1] area, using AtapiIoPortRegisters[0],
+ // Target Id in [2,3] area, using AtapiIoPortRegisters[1]
+ //
+ if ((TargetId / 2) == 0) {
+ AtapiScsiPrivate->IoPort = &AtapiScsiPrivate->AtapiIoPortRegisters[0];
+ } else {
+ AtapiScsiPrivate->IoPort = &AtapiScsiPrivate->AtapiIoPortRegisters[1];
+ }
+
+ //
+ // for ATAPI device, no need to wait DRDY ready after device selecting.
+ //
+ // bit7 and bit5 are both set to 1 for backward compatibility
+ //
+ DeviceSelect = (UINT8) (((bit (7) | bit (5)) | (TargetId << 4)));
+ WritePortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Head, DeviceSelect);
+
+ Command = ATAPI_SOFT_RESET_CMD;
+ WritePortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Reg.Command, Command);
+
+ //
+ // BSY clear is the only status return to the host by the device
+ // when reset is complete.
+ // slave device needs at most 31s to clear BSY
+ //
+ if (EFI_ERROR (StatusWaitForBSYClear (AtapiScsiPrivate, 31000000))) {
+ return EFI_TIMEOUT;
+ }
+
+ //
+ // stall 5 seconds to make the device status stable
+ //
+ gBS->Stall (5000000);
+
+ return EFI_SUCCESS;
+}
+
+
+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().
+--*/
+{
+ UINT8 TargetId;
+ UINT8 ScsiId[TARGET_MAX_BYTES];
+ ATAPI_SCSI_PASS_THRU_DEV *AtapiScsiPrivate;
+ UINT8 ByteIndex;
+
+ //
+ // Retrieve Device Private Data Structure.
+ //
+ AtapiScsiPrivate = ATAPI_EXT_SCSI_PASS_THRU_DEV_FROM_THIS (This);
+
+ //
+ // Check whether Target is valid.
+ //
+ if (*Target == NULL ) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ TargetId = (*Target)[0];
+ SetMem (ScsiId, TARGET_MAX_BYTES, 0xFF);
+
+ //
+ // For ATAPI device, we use UINT8 to represent the SCSI ID on channel.
+ //
+ if (CompareMem(*Target, ScsiId, TARGET_MAX_BYTES) != 0) {
+ for (ByteIndex = 1; ByteIndex < TARGET_MAX_BYTES; ByteIndex++) {
+ if ((*Target)[ByteIndex] != 0) {
+ return EFI_INVALID_PARAMETER;
+ }
+ }
+ }
+
+ if ((CompareMem(*Target, ScsiId, TARGET_MAX_BYTES) != 0) &&(TargetId != AtapiScsiPrivate->LatestTargetId)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (TargetId == MAX_TARGET_ID) {
+ return EFI_NOT_FOUND;
+ }
+
+ if ((CompareMem(*Target, ScsiId, TARGET_MAX_BYTES) == 0)) {
+ SetMem (*Target, TARGET_MAX_BYTES, 0);
+ } else {
+ (*Target)[0] = (UINT8) (AtapiScsiPrivate->LatestTargetId + 1);
+ }
+
+ //
+ // Update the LatestTargetId.
+ //
+ AtapiScsiPrivate->LatestTargetId = (*Target)[0];
+ AtapiScsiPrivate->LatestLun = 0;
+
+ return EFI_SUCCESS;
+}
+
+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
+
+--*/
+{
+ EFI_STATUS Status;
+ PCI_TYPE00 PciData;
+
+ Status = PciIo->Pci.Read (
+ PciIo,
+ EfiPciIoWidthUint8,
+ 0,
+ sizeof (PciData),
+ &PciData
+ );
+
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if ((PciData.Hdr.ClassCode[0] & IDE_PRIMARY_OPERATING_MODE) == 0) {
+ IdeRegsBaseAddr[IdePrimary].CommandBlockBaseAddr = 0x1f0;
+ IdeRegsBaseAddr[IdePrimary].ControlBlockBaseAddr = 0x3f6;
+ } else {
+ //
+ // The BARs should be of IO type
+ //
+ if ((PciData.Device.Bar[0] & BIT0) == 0 ||
+ (PciData.Device.Bar[1] & BIT0) == 0) {
+ return EFI_UNSUPPORTED;
+ }
+
+ IdeRegsBaseAddr[IdePrimary].CommandBlockBaseAddr =
+ (UINT16) (PciData.Device.Bar[0] & 0x0000fff8);
+ IdeRegsBaseAddr[IdePrimary].ControlBlockBaseAddr =
+ (UINT16) ((PciData.Device.Bar[1] & 0x0000fffc) + 2);
+ }
+
+ if ((PciData.Hdr.ClassCode[0] & IDE_SECONDARY_OPERATING_MODE) == 0) {
+ IdeRegsBaseAddr[IdeSecondary].CommandBlockBaseAddr = 0x170;
+ IdeRegsBaseAddr[IdeSecondary].ControlBlockBaseAddr = 0x376;
+ } else {
+ //
+ // The BARs should be of IO type
+ //
+ if ((PciData.Device.Bar[2] & BIT0) == 0 ||
+ (PciData.Device.Bar[3] & BIT0) == 0) {
+ return EFI_UNSUPPORTED;
+ }
+
+ IdeRegsBaseAddr[IdeSecondary].CommandBlockBaseAddr =
+ (UINT16) (PciData.Device.Bar[2] & 0x0000fff8);
+ IdeRegsBaseAddr[IdeSecondary].ControlBlockBaseAddr =
+ (UINT16) ((PciData.Device.Bar[3] & 0x0000fffc) + 2);
+ }
+
+ return EFI_SUCCESS;
+}
+
+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
+
+--*/
+{
+
+ UINT8 IdeChannel;
+ UINT16 CommandBlockBaseAddr;
+ UINT16 ControlBlockBaseAddr;
+ IDE_BASE_REGISTERS *RegisterPointer;
+
+
+ for (IdeChannel = 0; IdeChannel < ATAPI_MAX_CHANNEL; IdeChannel++) {
+
+ RegisterPointer = &AtapiScsiPrivate->AtapiIoPortRegisters[IdeChannel];
+
+ //
+ // Initialize IDE IO port addresses, including Command Block registers
+ // and Control Block registers
+ //
+ CommandBlockBaseAddr = IdeRegsBaseAddr[IdeChannel].CommandBlockBaseAddr;
+ ControlBlockBaseAddr = IdeRegsBaseAddr[IdeChannel].ControlBlockBaseAddr;
+
+ RegisterPointer->Data = CommandBlockBaseAddr;
+ (*(UINT16 *) &RegisterPointer->Reg1) = (UINT16) (CommandBlockBaseAddr + 0x01);
+ RegisterPointer->SectorCount = (UINT16) (CommandBlockBaseAddr + 0x02);
+ RegisterPointer->SectorNumber = (UINT16) (CommandBlockBaseAddr + 0x03);
+ RegisterPointer->CylinderLsb = (UINT16) (CommandBlockBaseAddr + 0x04);
+ RegisterPointer->CylinderMsb = (UINT16) (CommandBlockBaseAddr + 0x05);
+ RegisterPointer->Head = (UINT16) (CommandBlockBaseAddr + 0x06);
+ (*(UINT16 *) &RegisterPointer->Reg) = (UINT16) (CommandBlockBaseAddr + 0x07);
+
+ (*(UINT16 *) &RegisterPointer->Alt) = ControlBlockBaseAddr;
+ RegisterPointer->DriveAddress = (UINT16) (ControlBlockBaseAddr + 0x01);
+ }
+
+}
+
+
+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
+
+--*/
+{
+ if (Packet == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (!ValidCdbLength (Packet->CdbLength)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (Packet->Cdb == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Checks whether the request command is supported.
+ //
+ if (!IsCommandValid (Packet)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ return EFI_SUCCESS;
+}
+
+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
+
+--*/
+{
+ UINT8 Index;
+ UINT8 *OpCode;
+
+ OpCode = (UINT8 *) (Packet->Cdb);
+
+ for (Index = 0; CompareMem (&gSupportedATAPICommands[Index], &gEndTable, sizeof (SCSI_COMMAND_SET)); Index++) {
+
+ if (*OpCode == gSupportedATAPICommands[Index].OpCode) {
+ //
+ // Check whether the requested Command is supported by this driver
+ //
+ if (Packet->DataDirection == DataIn) {
+ //
+ // Check whether the requested data direction conforms to
+ // what it should be.
+ //
+ if (gSupportedATAPICommands[Index].Direction == DataOut) {
+ return FALSE;
+ }
+ }
+
+ if (Packet->DataDirection == DataOut) {
+ //
+ // Check whether the requested data direction conforms to
+ // what it should be.
+ //
+ if (gSupportedATAPICommands[Index].Direction == DataIn) {
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+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
+
+--*/
+{
+ UINT8 PacketCommand[12];
+ UINT64 TimeoutInMicroSeconds;
+ EFI_STATUS PacketCommandStatus;
+
+ //
+ // Fill ATAPI Command Packet according to CDB
+ //
+ ZeroMem (&PacketCommand, 12);
+ CopyMem (&PacketCommand, Packet->Cdb, Packet->CdbLength);
+
+ //
+ // Timeout is 100ns unit, convert it to 1000ns (1us) unit.
+ //
+ TimeoutInMicroSeconds = DivU64x32 (Packet->Timeout, (UINT32) 10);
+
+ //
+ // Submit ATAPI Command Packet
+ //
+ PacketCommandStatus = AtapiPacketCommand (
+ AtapiScsiPrivate,
+ Target,
+ PacketCommand,
+ Packet->DataBuffer,
+ &(Packet->TransferLength),
+ (DATA_DIRECTION) Packet->DataDirection,
+ TimeoutInMicroSeconds
+ );
+ if (!EFI_ERROR (PacketCommandStatus) || (Packet->SenseData == NULL)) {
+ Packet->SenseDataLength = 0;
+ return PacketCommandStatus;
+ }
+
+ //
+ // Return SenseData if PacketCommandStatus matches
+ // the following return codes.
+ //
+ if ((PacketCommandStatus == EFI_BAD_BUFFER_SIZE) ||
+ (PacketCommandStatus == EFI_DEVICE_ERROR) ||
+ (PacketCommandStatus == EFI_TIMEOUT)) {
+
+ //
+ // avoid submit request sense command continuously.
+ //
+ if (PacketCommand[0] == OP_REQUEST_SENSE) {
+ Packet->SenseDataLength = 0;
+ return PacketCommandStatus;
+ }
+
+ RequestSenseCommand (
+ AtapiScsiPrivate,
+ Target,
+ Packet->Timeout,
+ Packet->SenseData,
+ &Packet->SenseDataLength
+ );
+ }
+
+ return PacketCommandStatus;
+}
+
+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_SCSI_PASS_THRU_SCSI_REQUEST_PACKET Packet;
+ UINT8 Cdb[12];
+ EFI_STATUS Status;
+
+ ZeroMem (&Packet, sizeof (EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET));
+ ZeroMem (Cdb, 12);
+
+ Cdb[0] = OP_REQUEST_SENSE;
+ Cdb[4] = (UINT8) (*SenseDataLength);
+
+ Packet.Timeout = Timeout;
+ Packet.DataBuffer = SenseData;
+ Packet.SenseData = NULL;
+ Packet.Cdb = Cdb;
+ Packet.TransferLength = *SenseDataLength;
+ Packet.CdbLength = 12;
+ Packet.DataDirection = DataIn;
+
+ Status = SubmitBlockingIoCommand (AtapiScsiPrivate, Target, &Packet);
+ *SenseDataLength = (UINT8) (Packet.TransferLength);
+ return 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
+
+--*/
+{
+ if (Packet == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (!ValidCdbLength (Packet->CdbLength)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (Packet->Cdb == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Checks whether the request command is supported.
+ //
+ if (!IsExtCommandValid (Packet)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ return EFI_SUCCESS;
+}
+
+
+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
+
+--*/
+{
+ UINT8 Index;
+ UINT8 *OpCode;
+
+ OpCode = (UINT8 *) (Packet->Cdb);
+
+ for (Index = 0; CompareMem (&gSupportedATAPICommands[Index], &gEndTable, sizeof (SCSI_COMMAND_SET)); Index++) {
+
+ if (*OpCode == gSupportedATAPICommands[Index].OpCode) {
+ //
+ // Check whether the requested Command is supported by this driver
+ //
+ if (Packet->DataDirection == DataIn) {
+ //
+ // Check whether the requested data direction conforms to
+ // what it should be.
+ //
+ if (gSupportedATAPICommands[Index].Direction == DataOut) {
+ return FALSE;
+ }
+ }
+
+ if (Packet->DataDirection == DataOut) {
+ //
+ // Check whether the requested data direction conforms to
+ // what it should be.
+ //
+ if (gSupportedATAPICommands[Index].Direction == DataIn) {
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+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
+
+--*/
+{
+ UINT8 PacketCommand[12];
+ UINT64 TimeoutInMicroSeconds;
+ EFI_STATUS PacketCommandStatus;
+
+ //
+ // Fill ATAPI Command Packet according to CDB
+ //
+ ZeroMem (&PacketCommand, 12);
+ CopyMem (&PacketCommand, Packet->Cdb, Packet->CdbLength);
+
+ //
+ // Timeout is 100ns unit, convert it to 1000ns (1us) unit.
+ //
+ TimeoutInMicroSeconds = DivU64x32 (Packet->Timeout, (UINT32) 10);
+
+ //
+ // Submit ATAPI Command Packet
+ //
+ if (Packet->DataDirection == DataIn) {
+ PacketCommandStatus = AtapiPacketCommand (
+ AtapiScsiPrivate,
+ Target,
+ PacketCommand,
+ Packet->InDataBuffer,
+ &(Packet->InTransferLength),
+ DataIn,
+ TimeoutInMicroSeconds
+ );
+ } else {
+
+ PacketCommandStatus = AtapiPacketCommand (
+ AtapiScsiPrivate,
+ Target,
+ PacketCommand,
+ Packet->OutDataBuffer,
+ &(Packet->OutTransferLength),
+ DataOut,
+ TimeoutInMicroSeconds
+ );
+ }
+
+ if (!EFI_ERROR (PacketCommandStatus) || (Packet->SenseData == NULL)) {
+ Packet->SenseDataLength = 0;
+ return PacketCommandStatus;
+ }
+
+ //
+ // Return SenseData if PacketCommandStatus matches
+ // the following return codes.
+ //
+ if ((PacketCommandStatus == EFI_BAD_BUFFER_SIZE) ||
+ (PacketCommandStatus == EFI_DEVICE_ERROR) ||
+ (PacketCommandStatus == EFI_TIMEOUT)) {
+
+ //
+ // avoid submit request sense command continuously.
+ //
+ if (PacketCommand[0] == OP_REQUEST_SENSE) {
+ Packet->SenseDataLength = 0;
+ return PacketCommandStatus;
+ }
+
+ RequestSenseCommand (
+ AtapiScsiPrivate,
+ Target,
+ Packet->Timeout,
+ Packet->SenseData,
+ &Packet->SenseDataLength
+ );
+ }
+
+ return PacketCommandStatus;
+}
+
+
+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
+
+--*/
+{
+
+ UINT16 *CommandIndex;
+ UINT8 Count;
+ EFI_STATUS Status;
+
+ //
+ // Set all the command parameters by fill related registers.
+ // Before write to all the following registers, BSY must be 0.
+ //
+ Status = StatusWaitForBSYClear (AtapiScsiPrivate, TimeoutInMicroSeconds);
+ if (EFI_ERROR (Status)) {
+ return EFI_DEVICE_ERROR;
+ }
+
+
+ //
+ // Select device via Device/Head Register.
+ // "Target = 0" indicates device 0; "Target = 1" indicates device 1
+ //
+ WritePortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Head,
+ (UINT8) ((Target << 4) | DEFAULT_CMD) // DEFAULT_CMD: 0xa0 (1010,0000)
+ );
+
+ //
+ // Set all the command parameters by fill related registers.
+ // Before write to all the following registers, BSY DRQ must be 0.
+ //
+ Status = StatusDRQClear(AtapiScsiPrivate, TimeoutInMicroSeconds);
+
+ if (EFI_ERROR (Status)) {
+ if (Status == EFI_ABORTED) {
+ Status = EFI_DEVICE_ERROR;
+ }
+ *ByteCount = 0;
+ return Status;
+ }
+
+ //
+ // No OVL; No DMA (by setting feature register)
+ //
+ WritePortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Reg1.Feature,
+ 0x00
+ );
+
+ //
+ // set the transfersize to MAX_ATAPI_BYTE_COUNT to let the device
+ // determine how much data should be transfered.
+ //
+ WritePortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->CylinderLsb,
+ (UINT8) (MAX_ATAPI_BYTE_COUNT & 0x00ff)
+ );
+ WritePortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->CylinderMsb,
+ (UINT8) (MAX_ATAPI_BYTE_COUNT >> 8)
+ );
+
+ //
+ // DEFAULT_CTL:0x0a (0000,1010)
+ // Disable interrupt
+ //
+ WritePortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Alt.DeviceControl,
+ DEFAULT_CTL
+ );
+
+ //
+ // Send Packet command to inform device
+ // that the following data bytes are command packet.
+ //
+ WritePortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Reg.Command,
+ PACKET_CMD
+ );
+
+ //
+ // Before data transfer, BSY should be 0 and DRQ should be 1.
+ // if they are not in specified time frame,
+ // retrieve Sense Key from Error Register before return.
+ //
+ Status = StatusDRQReady (AtapiScsiPrivate, TimeoutInMicroSeconds);
+ if (EFI_ERROR (Status)) {
+ if (Status == EFI_ABORTED) {
+ Status = EFI_DEVICE_ERROR;
+ }
+
+ *ByteCount = 0;
+ return Status;
+ }
+
+ //
+ // Send out command packet
+ //
+ CommandIndex = (UINT16 *) PacketCommand;
+ for (Count = 0; Count < 6; Count++, CommandIndex++) {
+ WritePortW (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Data, *CommandIndex);
+ }
+
+ //
+ // call AtapiPassThruPioReadWriteData() function to get
+ // requested transfer data form device.
+ //
+ return AtapiPassThruPioReadWriteData (
+ AtapiScsiPrivate,
+ Buffer,
+ ByteCount,
+ Direction,
+ TimeoutInMicroSeconds
+ );
+}
+
+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
+
+--*/
+{
+ UINT32 Index;
+ UINT32 RequiredWordCount;
+ UINT32 ActualWordCount;
+ UINT32 WordCount;
+ EFI_STATUS Status;
+ UINT16 *ptrBuffer;
+
+ Status = EFI_SUCCESS;
+
+ //
+ // Non Data transfer request is also supported.
+ //
+ if (*ByteCount == 0 || Buffer == NULL) {
+ *ByteCount = 0;
+ if (EFI_ERROR (StatusWaitForBSYClear (AtapiScsiPrivate, TimeoutInMicroSeconds))) {
+ return EFI_DEVICE_ERROR;
+ }
+ }
+
+ ptrBuffer = Buffer;
+ RequiredWordCount = *ByteCount / 2;
+
+ //
+ // ActuralWordCount means the word count of data really transfered.
+ //
+ ActualWordCount = 0;
+
+ while (ActualWordCount < RequiredWordCount) {
+ //
+ // before each data transfer stream, the host should poll DRQ bit ready,
+ // which indicates device's ready for data transfer .
+ //
+ Status = StatusDRQReady (AtapiScsiPrivate, TimeoutInMicroSeconds);
+ if (EFI_ERROR (Status)) {
+ *ByteCount = ActualWordCount * 2;
+
+ AtapiPassThruCheckErrorStatus (AtapiScsiPrivate);
+
+ if (ActualWordCount == 0) {
+ return EFI_DEVICE_ERROR;
+ }
+ //
+ // ActualWordCount > 0
+ //
+ if (ActualWordCount < RequiredWordCount) {
+ return EFI_BAD_BUFFER_SIZE;
+ }
+ }
+ //
+ // get current data transfer size from Cylinder Registers.
+ //
+ WordCount = ReadPortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->CylinderMsb) << 8;
+ WordCount = WordCount | ReadPortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->CylinderLsb);
+ WordCount = WordCount & 0xffff;
+ WordCount /= 2;
+
+ //
+ // perform a series data In/Out.
+ //
+ for (Index = 0; (Index < WordCount) && (ActualWordCount < RequiredWordCount); Index++, ActualWordCount++) {
+
+ if (Direction == DataIn) {
+
+ *ptrBuffer = ReadPortW (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Data);
+ } else {
+
+ WritePortW (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Data, *ptrBuffer);
+ }
+
+ ptrBuffer++;
+
+ }
+ }
+ //
+ // After data transfer is completed, normally, DRQ bit should clear.
+ //
+ StatusDRQClear (AtapiScsiPrivate, TimeoutInMicroSeconds);
+
+ //
+ // read status register to check whether error happens.
+ //
+ Status = AtapiPassThruCheckErrorStatus (AtapiScsiPrivate);
+
+ *ByteCount = ActualWordCount * 2;
+
+ return 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
+
+--*/
+{
+ UINT8 Data;
+
+ Data = 0;
+ PciIo->Io.Read (
+ PciIo,
+ EfiPciIoWidthUint8,
+ EFI_PCI_IO_PASS_THROUGH_BAR,
+ (UINT64) Port,
+ 1,
+ &Data
+ );
+ return Data;
+}
+
+
+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
+--*/
+{
+ UINT16 Data;
+
+ Data = 0;
+ PciIo->Io.Read (
+ PciIo,
+ EfiPciIoWidthUint16,
+ EFI_PCI_IO_PASS_THROUGH_BAR,
+ (UINT64) Port,
+ 1,
+ &Data
+ );
+ return Data;
+}
+
+
+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
+
+--*/
+{
+ PciIo->Io.Write (
+ PciIo,
+ EfiPciIoWidthUint8,
+ EFI_PCI_IO_PASS_THROUGH_BAR,
+ (UINT64) Port,
+ 1,
+ &Data
+ );
+}
+
+
+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
+
+--*/
+{
+ PciIo->Io.Write (
+ PciIo,
+ EfiPciIoWidthUint16,
+ EFI_PCI_IO_PASS_THROUGH_BAR,
+ (UINT64) Port,
+ 1,
+ &Data
+ );
+}
+
+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
+
+--*/
+{
+ UINT64 Delay;
+ UINT8 StatusRegister;
+ UINT8 ErrRegister;
+
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ } else {
+ Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;
+ }
+
+ do {
+
+ StatusRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Reg.Status
+ );
+
+ //
+ // wait for BSY == 0 and DRQ == 0
+ //
+ if ((StatusRegister & (DRQ | BSY)) == 0) {
+ break;
+ }
+ //
+ // check whether the command is aborted by the device
+ //
+ if ((StatusRegister & (BSY | ERR)) == ERR) {
+
+ ErrRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Reg1.Error
+ );
+ if ((ErrRegister & ABRT_ERR) == ABRT_ERR) {
+
+ return EFI_ABORTED;
+ }
+ }
+ //
+ // Stall for 30 us
+ //
+ gBS->Stall (30);
+
+ //
+ // Loop infinitely if not meeting expected condition
+ //
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ }
+
+ Delay--;
+ } while (Delay);
+
+ if (Delay == 0) {
+ return EFI_TIMEOUT;
+ }
+
+ return EFI_SUCCESS;
+}
+
+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
+
+--*/
+{
+ UINT64 Delay;
+ UINT8 AltStatusRegister;
+ UINT8 ErrRegister;
+
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ } else {
+ Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;
+ }
+
+ do {
+
+ AltStatusRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Alt.AltStatus
+ );
+
+ //
+ // wait for BSY == 0 and DRQ == 0
+ //
+ if ((AltStatusRegister & (DRQ | BSY)) == 0) {
+ break;
+ }
+
+ if ((AltStatusRegister & (BSY | ERR)) == ERR) {
+
+ ErrRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Reg1.Error
+ );
+ if ((ErrRegister & ABRT_ERR) == ABRT_ERR) {
+
+ return EFI_ABORTED;
+ }
+ }
+ //
+ // Stall for 30 us
+ //
+ gBS->Stall (30);
+
+ //
+ // Loop infinitely if not meeting expected condition
+ //
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ }
+
+ Delay--;
+ } while (Delay);
+
+ if (Delay == 0) {
+ return EFI_TIMEOUT;
+ }
+
+ return EFI_SUCCESS;
+}
+
+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
+
+--*/
+{
+ UINT64 Delay;
+ UINT8 StatusRegister;
+ UINT8 ErrRegister;
+
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ } else {
+ Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;
+ }
+
+ do {
+ //
+ // read Status Register will clear interrupt
+ //
+ StatusRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Reg.Status
+ );
+
+ //
+ // BSY==0,DRQ==1
+ //
+ if ((StatusRegister & (BSY | DRQ)) == DRQ) {
+ break;
+ }
+
+ if ((StatusRegister & (BSY | ERR)) == ERR) {
+
+ ErrRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Reg1.Error
+ );
+ if ((ErrRegister & ABRT_ERR) == ABRT_ERR) {
+ return EFI_ABORTED;
+ }
+ }
+
+ //
+ // Stall for 30 us
+ //
+ gBS->Stall (30);
+
+ //
+ // Loop infinitely if not meeting expected condition
+ //
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ }
+
+ Delay--;
+ } while (Delay);
+
+ if (Delay == 0) {
+ return EFI_TIMEOUT;
+ }
+
+ return EFI_SUCCESS;
+}
+
+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
+
+--*/
+{
+ UINT64 Delay;
+ UINT8 AltStatusRegister;
+ UINT8 ErrRegister;
+
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ } else {
+ Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;
+ }
+
+ do {
+ //
+ // read Status Register will clear interrupt
+ //
+ AltStatusRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Alt.AltStatus
+ );
+ //
+ // BSY==0,DRQ==1
+ //
+ if ((AltStatusRegister & (BSY | DRQ)) == DRQ) {
+ break;
+ }
+
+ if ((AltStatusRegister & (BSY | ERR)) == ERR) {
+
+ ErrRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Reg1.Error
+ );
+ if ((ErrRegister & ABRT_ERR) == ABRT_ERR) {
+ return EFI_ABORTED;
+ }
+ }
+
+ //
+ // Stall for 30 us
+ //
+ gBS->Stall (30);
+
+ //
+ // Loop infinitely if not meeting expected condition
+ //
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ }
+
+ Delay--;
+ } while (Delay);
+
+ if (Delay == 0) {
+ return EFI_TIMEOUT;
+ }
+
+ return EFI_SUCCESS;
+}
+
+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
+
+--*/
+{
+ UINT64 Delay;
+ UINT8 StatusRegister;
+
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ } else {
+ Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;
+ }
+
+ do {
+
+ StatusRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Reg.Status
+ );
+ if ((StatusRegister & BSY) == 0x00) {
+ break;
+ }
+
+ //
+ // Stall for 30 us
+ //
+ gBS->Stall (30);
+
+ //
+ // Loop infinitely if not meeting expected condition
+ //
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ }
+
+ Delay--;
+ } while (Delay);
+
+ if (Delay == 0) {
+ return EFI_TIMEOUT;
+ }
+
+ return EFI_SUCCESS;
+}
+
+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
+
+--*/
+{
+ UINT64 Delay;
+ UINT8 AltStatusRegister;
+
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ } else {
+ Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;
+ }
+
+ do {
+
+ AltStatusRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Alt.AltStatus
+ );
+ if ((AltStatusRegister & BSY) == 0x00) {
+ break;
+ }
+
+ //
+ // Stall for 30 us
+ //
+ gBS->Stall (30);
+ //
+ // Loop infinitely if not meeting expected condition
+ //
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ }
+
+ Delay--;
+ } while (Delay);
+
+ if (Delay == 0) {
+ return EFI_TIMEOUT;
+ }
+
+ return EFI_SUCCESS;
+}
+
+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
+
+--*/
+{
+ UINT64 Delay;
+ UINT8 StatusRegister;
+ UINT8 ErrRegister;
+
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ } else {
+ Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;
+ }
+
+ do {
+ StatusRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Reg.Status
+ );
+ //
+ // BSY == 0 , DRDY == 1
+ //
+ if ((StatusRegister & (DRDY | BSY)) == DRDY) {
+ break;
+ }
+
+ if ((StatusRegister & (BSY | ERR)) == ERR) {
+
+ ErrRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Reg1.Error
+ );
+ if ((ErrRegister & ABRT_ERR) == ABRT_ERR) {
+ return EFI_ABORTED;
+ }
+ }
+
+ //
+ // Stall for 30 us
+ //
+ gBS->Stall (30);
+ //
+ // Loop infinitely if not meeting expected condition
+ //
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ }
+
+ Delay--;
+ } while (Delay);
+
+ if (Delay == 0) {
+ return EFI_TIMEOUT;
+ }
+
+ return EFI_SUCCESS;
+}
+
+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
+
+--*/
+{
+ UINT64 Delay;
+ UINT8 AltStatusRegister;
+ UINT8 ErrRegister;
+
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ } else {
+ Delay = DivU64x32 (TimeoutInMicroSeconds, (UINT32) 30) + 1;
+ }
+
+ do {
+ AltStatusRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Alt.AltStatus
+ );
+ //
+ // BSY == 0 , DRDY == 1
+ //
+ if ((AltStatusRegister & (DRDY | BSY)) == DRDY) {
+ break;
+ }
+
+ if ((AltStatusRegister & (BSY | ERR)) == ERR) {
+
+ ErrRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Reg1.Error
+ );
+ if ((ErrRegister & ABRT_ERR) == ABRT_ERR) {
+ return EFI_ABORTED;
+ }
+ }
+
+ //
+ // Stall for 30 us
+ //
+ gBS->Stall (30);
+ //
+ // Loop infinitely if not meeting expected condition
+ //
+ if (TimeoutInMicroSeconds == 0) {
+ Delay = 2;
+ }
+
+ Delay--;
+ } while (Delay);
+
+ if (Delay == 0) {
+ return EFI_TIMEOUT;
+ }
+
+ return EFI_SUCCESS;
+}
+
+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
+
+--*/
+{
+ UINT8 StatusRegister;
+ UINT8 ErrorRegister;
+
+ StatusRegister = ReadPortB (
+ AtapiScsiPrivate->PciIo,
+ AtapiScsiPrivate->IoPort->Reg.Status
+ );
+
+ DEBUG_CODE_BEGIN ();
+
+ if (StatusRegister & DWF) {
+ DEBUG (
+ (EFI_D_BLKIO,
+ "AtapiPassThruCheckErrorStatus()-- %02x : Error : Write Fault\n",
+ StatusRegister)
+ );
+ }
+
+ if (StatusRegister & CORR) {
+ DEBUG (
+ (EFI_D_BLKIO,
+ "AtapiPassThruCheckErrorStatus()-- %02x : Error : Corrected Data\n",
+ StatusRegister)
+ );
+ }
+
+ if (StatusRegister & ERR) {
+ ErrorRegister = ReadPortB (AtapiScsiPrivate->PciIo, AtapiScsiPrivate->IoPort->Reg1.Error);
+
+
+ if (ErrorRegister & BBK_ERR) {
+ DEBUG (
+ (EFI_D_BLKIO,
+ "AtapiPassThruCheckErrorStatus()-- %02x : Error : Bad Block Detected\n",
+ ErrorRegister)
+ );
+ }
+
+ if (ErrorRegister & UNC_ERR) {
+ DEBUG (
+ (EFI_D_BLKIO,
+ "AtapiPassThruCheckErrorStatus()-- %02x : Error : Uncorrectable Data\n",
+ ErrorRegister)
+ );
+ }
+
+ if (ErrorRegister & MC_ERR) {
+ DEBUG (
+ (EFI_D_BLKIO,
+ "AtapiPassThruCheckErrorStatus()-- %02x : Error : Media Change\n",
+ ErrorRegister)
+ );
+ }
+
+ if (ErrorRegister & ABRT_ERR) {
+ DEBUG (
+ (EFI_D_BLKIO,
+ "AtapiPassThruCheckErrorStatus()-- %02x : Error : Abort\n",
+ ErrorRegister)
+ );
+ }
+
+ if (ErrorRegister & TK0NF_ERR) {
+ DEBUG (
+ (EFI_D_BLKIO,
+ "AtapiPassThruCheckErrorStatus()-- %02x : Error : Track 0 Not Found\n",
+ ErrorRegister)
+ );
+ }
+
+ if (ErrorRegister & AMNF_ERR) {
+ DEBUG (
+ (EFI_D_BLKIO,
+ "AtapiPassThruCheckErrorStatus()-- %02x : Error : Address Mark Not Found\n",
+ ErrorRegister)
+ );
+ }
+ }
+
+ DEBUG_CODE_END ();
+
+ if ((StatusRegister & (ERR | DWF | CORR)) == 0) {
+ return EFI_SUCCESS;
+ }
+
+
+ return EFI_DEVICE_ERROR;
+}
+
+
+/**
+ 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
+ )
+{
+ EFI_STATUS Status;
+ EFI_SCSI_PASS_THRU_PROTOCOL *ScsiPassThru;
+ EFI_EXT_SCSI_PASS_THRU_PROTOCOL *ExtScsiPassThru;
+
+ ScsiPassThru = &AtapiScsiPrivate->ScsiPassThru;
+ ExtScsiPassThru = &AtapiScsiPrivate->ExtScsiPassThru;
+
+ if (FeaturePcdGet (PcdSupportScsiPassThru)) {
+ ScsiPassThru = CopyMem (ScsiPassThru, &gScsiPassThruProtocolTemplate, sizeof (*ScsiPassThru));
+ if (FeaturePcdGet (PcdSupportExtScsiPassThru)) {
+ ExtScsiPassThru = CopyMem (ExtScsiPassThru, &gExtScsiPassThruProtocolTemplate, sizeof (*ExtScsiPassThru));
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ ControllerHandle,
+ &gEfiScsiPassThruProtocolGuid,
+ ScsiPassThru,
+ &gEfiExtScsiPassThruProtocolGuid,
+ ExtScsiPassThru,
+ NULL
+ );
+ } else {
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ ControllerHandle,
+ &gEfiScsiPassThruProtocolGuid,
+ ScsiPassThru,
+ NULL
+ );
+ }
+ } else {
+ if (FeaturePcdGet (PcdSupportExtScsiPassThru)) {
+ ExtScsiPassThru = CopyMem (ExtScsiPassThru, &gExtScsiPassThruProtocolTemplate, sizeof (*ExtScsiPassThru));
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ ControllerHandle,
+ &gEfiExtScsiPassThruProtocolGuid,
+ ExtScsiPassThru,
+ NULL
+ );
+ } else {
+ //
+ // This driver must support either ScsiPassThru or
+ // ExtScsiPassThru protocols
+ //
+ ASSERT (FALSE);
+ Status = EFI_UNSUPPORTED;
+ }
+ }
+
+ return Status;
+}
+
+/**
+ The user Entry Point for module AtapiPassThru. The user code starts with this function.
+
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.
+ @param[in] SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The entry point is executed successfully.
+ @retval other Some error occurs when executing this entry point.
+
+**/
+EFI_STATUS
+EFIAPI
+InitializeAtapiPassThru(
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // Install driver model protocol(s).
+ //
+ Status = EfiLibInstallDriverBindingComponentName2 (
+ ImageHandle,
+ SystemTable,
+ &gAtapiScsiPassThruDriverBinding,
+ ImageHandle,
+ &gAtapiScsiPassThruComponentName,
+ &gAtapiScsiPassThruComponentName2
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return Status;
+}
diff --git a/OptionRomPkg/AtapiPassThruDxe/AtapiPassThru.h b/OptionRomPkg/AtapiPassThruDxe/AtapiPassThru.h new file mode 100644 index 0000000000..2187580bb6 --- /dev/null +++ b/OptionRomPkg/AtapiPassThruDxe/AtapiPassThru.h @@ -0,0 +1,1625 @@ +/** @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 <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 <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 EFI_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;
+
+//
+// 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 3066 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 3066 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
diff --git a/OptionRomPkg/AtapiPassThruDxe/AtapiPassThruDxe.inf b/OptionRomPkg/AtapiPassThruDxe/AtapiPassThruDxe.inf new file mode 100644 index 0000000000..378624e381 --- /dev/null +++ b/OptionRomPkg/AtapiPassThruDxe/AtapiPassThruDxe.inf @@ -0,0 +1,65 @@ +#/** @file
+# Description file for the Atapi Passthru component.
+#
+# This driver simulates SCSI devices with Atapi devices to test the SCSI io
+# protocol.
+# Copyright (c) 2006 - 2007, 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.
+#
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = AtapiPassThru
+ FILE_GUID = E49061CE-99A7-41d3-AB3A-36E5CFBAD63E
+ MODULE_TYPE = UEFI_DRIVER
+ VERSION_STRING = 1.0
+ EDK_RELEASE_VERSION = 0x00020000
+ EFI_SPECIFICATION_VERSION = 0x00020000
+
+ ENTRY_POINT = InitializeAtapiPassThru
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC
+#
+# DRIVER_BINDING = gAtapiScsiPassThruDriverBinding
+# COMPONENT_NAME = gAtapiScsiPassThruComponentName
+#
+
+[Sources.common]
+ ComponentName.c
+ AtapiPassThru.c
+ AtapiPassThru.h
+
+
+[Packages]
+ MdePkg/MdePkg.dec
+ OptionRomPkg/OptionRomPkg.dec
+
+[LibraryClasses]
+ UefiBootServicesTableLib
+ MemoryAllocationLib
+ BaseMemoryLib
+ UefiLib
+ BaseLib
+ UefiDriverEntryPoint
+ DebugLib
+
+
+[Protocols]
+ gEfiScsiPassThruProtocolGuid # PROTOCOL BY_START
+ gEfiExtScsiPassThruProtocolGuid # PROTOCOL BY_START
+ gEfiPciIoProtocolGuid # PROTOCOL TO_START
+
+[FeaturePcd]
+ gOptionRomPkgTokenSpaceGuid.PcdSupportScsiPassThru
+ gOptionRomPkgTokenSpaceGuid.PcdSupportExtScsiPassThru
diff --git a/OptionRomPkg/AtapiPassThruDxe/ComponentName.c b/OptionRomPkg/AtapiPassThruDxe/ComponentName.c new file mode 100644 index 0000000000..2f04f0bf3b --- /dev/null +++ b/OptionRomPkg/AtapiPassThruDxe/ComponentName.c @@ -0,0 +1,175 @@ +/** @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: ComponentName.c
+
+**/
+#include "AtapiPassThru.h"
+
+//
+// EFI Component Name Protocol
+//
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gAtapiScsiPassThruComponentName = {
+ AtapiScsiPassThruComponentNameGetDriverName,
+ AtapiScsiPassThruComponentNameGetControllerName,
+ "eng"
+};
+
+//
+// EFI Component Name 2 Protocol
+//
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gAtapiScsiPassThruComponentName2 = {
+ (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) AtapiScsiPassThruComponentNameGetDriverName,
+ (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) AtapiScsiPassThruComponentNameGetControllerName,
+ "en"
+};
+
+
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mAtapiScsiPassThruDriverNameTable[] = {
+ { "eng;en", (CHAR16 *) L"ATAPI SCSI Pass Thru Driver" },
+ { NULL , NULL }
+};
+
+/**
+ 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 3066 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
+ )
+{
+ return LookupUnicodeString2 (
+ Language,
+ This->SupportedLanguages,
+ mAtapiScsiPassThruDriverNameTable,
+ DriverName,
+ (BOOLEAN)(This == &gAtapiScsiPassThruComponentName)
+ );
+}
+
+/**
+ 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 3066 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
+ )
+{
+ return EFI_UNSUPPORTED;
+}
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