diff options
Diffstat (limited to 'OptionRomPkg/AtapiPassThruDxe/AtapiPassThru.c')
| -rw-r--r-- | OptionRomPkg/AtapiPassThruDxe/AtapiPassThru.c | 3416 |
1 files changed, 0 insertions, 3416 deletions
diff --git a/OptionRomPkg/AtapiPassThruDxe/AtapiPassThru.c b/OptionRomPkg/AtapiPassThruDxe/AtapiPassThru.c deleted file mode 100644 index 3578a1e445..0000000000 --- a/OptionRomPkg/AtapiPassThruDxe/AtapiPassThru.c +++ /dev/null @@ -1,3416 +0,0 @@ -/** @file
- Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials
- are licensed and made available under the terms and conditions of the BSD License
- which accompanies this distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "AtapiPassThru.h"
-
-
-SCSI_COMMAND_SET gEndTable = { 0xff, (DATA_DIRECTION) 0xff };
-
-///
-/// This table contains all the supported ATAPI commands.
-///
-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_MASS_STORAGE_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;
- BOOLEAN PciAttributesSaved;
-
- PciIo = NULL;
- Status = gBS->OpenProtocol (
- Controller,
- &gEfiPciIoProtocolGuid,
- (VOID **) &PciIo,
- This->DriverBindingHandle,
- Controller,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- PciAttributesSaved = FALSE;
- //
- // Save original PCI attributes
- //
- Status = PciIo->Attributes (
- PciIo,
- EfiPciIoAttributeOperationGet,
- 0,
- &OriginalPciAttributes
- );
-
- if (EFI_ERROR (Status)) {
- goto Done;
- }
- PciAttributesSaved = TRUE;
-
- 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)) {
- if (PciAttributesSaved == TRUE) {
- //
- // 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 |= BIT1;
- 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) (((BIT7 | BIT5) | (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 |= BIT1;
- 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) ((BIT7 | BIT5) | (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;
- UINT8 ArrayLen;
-
- OpCode = (UINT8 *) (Packet->Cdb);
- ArrayLen = (UINT8) (sizeof (gSupportedATAPICommands) / sizeof (gSupportedATAPICommands[0]));
-
- for (Index = 0; (Index < ArrayLen) && (CompareMem (&gSupportedATAPICommands[Index], &gEndTable, sizeof (SCSI_COMMAND_SET)) != 0); 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;
- UINT8 ArrayLen;
-
- OpCode = (UINT8 *) (Packet->Cdb);
- ArrayLen = (UINT8) (sizeof (gSupportedATAPICommands) / sizeof (gSupportedATAPICommands[0]));
-
- for (Index = 0; (Index < ArrayLen) && (CompareMem (&gSupportedATAPICommands[Index], &gEndTable, sizeof (SCSI_COMMAND_SET)) != 0); 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);
-
- //
- // Install EFI Driver Supported EFI Version Protocol required for
- // EFI drivers that are on PCI and other plug in cards.
- //
- gAtapiScsiPassThruDriverSupportedEfiVersion.FirmwareVersion = PcdGet32 (PcdDriverSupportedEfiVersion);
- Status = gBS->InstallMultipleProtocolInterfaces (
- &ImageHandle,
- &gEfiDriverSupportedEfiVersionProtocolGuid,
- &gAtapiScsiPassThruDriverSupportedEfiVersion,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
-
- return Status;
-}
|