mirror of https://github.com/acidanthera/audk.git
2412 lines
89 KiB
C
2412 lines
89 KiB
C
/** @file
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This file implements ATA_PASSTHRU_PROCTOCOL and EXT_SCSI_PASSTHRU_PROTOCOL interfaces
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for managed ATA controllers.
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Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "AtaAtapiPassThru.h"
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//
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// EFI_DRIVER_BINDING_PROTOCOL instance
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//
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EFI_DRIVER_BINDING_PROTOCOL gAtaAtapiPassThruDriverBinding = {
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AtaAtapiPassThruSupported,
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AtaAtapiPassThruStart,
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AtaAtapiPassThruStop,
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0x10,
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NULL,
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NULL
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};
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ATA_ATAPI_PASS_THRU_INSTANCE gAtaAtapiPassThruInstanceTemplate = {
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ATA_ATAPI_PASS_THRU_SIGNATURE,
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0, // Controller Handle
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NULL, // PciIo Protocol
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NULL, // IdeControllerInit Protocol
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{ // AtaPassThruMode
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//
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// According to UEFI2.3 spec Section 12.10, Drivers for non-RAID ATA controllers should set
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// both EFI_ATA_PASS_THRU_ATTRIBUTES_PHYSICAL and EFI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL
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// bits.
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// Note that the driver doesn't support AtaPassThru non blocking I/O.
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//
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EFI_ATA_PASS_THRU_ATTRIBUTES_PHYSICAL | EFI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL | EFI_ATA_PASS_THRU_ATTRIBUTES_NONBLOCKIO,
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//
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// IoAlign
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//
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sizeof (UINTN)
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},
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{ // AtaPassThru
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NULL,
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AtaPassThruPassThru,
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AtaPassThruGetNextPort,
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AtaPassThruGetNextDevice,
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AtaPassThruBuildDevicePath,
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AtaPassThruGetDevice,
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AtaPassThruResetPort,
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AtaPassThruResetDevice
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},
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{ // ExtScsiPassThruMode
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//
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// AdapterId
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//
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0,
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//
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// According to UEFI2.3 spec Section 14.7, Drivers for non-RAID SCSI controllers should set
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// both EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL and EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL
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// bits.
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// Note that the driver doesn't support ExtScsiPassThru non blocking I/O.
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//
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EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL | EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL,
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//
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// IoAlign
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//
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sizeof (UINTN)
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},
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{ // ExtScsiPassThru
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NULL,
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ExtScsiPassThruPassThru,
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ExtScsiPassThruGetNextTargetLun,
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ExtScsiPassThruBuildDevicePath,
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ExtScsiPassThruGetTargetLun,
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ExtScsiPassThruResetChannel,
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ExtScsiPassThruResetTargetLun,
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ExtScsiPassThruGetNextTarget
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},
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EfiAtaUnknownMode, // Work Mode
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{ // IdeRegisters
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{0},
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{0}
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},
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{ // AhciRegisters
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0
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},
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{ // DeviceList
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NULL,
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NULL
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},
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0, // OriginalAttributes
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0, // PreviousPort
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0, // PreviousPortMultiplier
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0, // PreviousTargetId
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0, // PreviousLun
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NULL, // Timer event
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{ // NonBlocking TaskList
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NULL,
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NULL
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}
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};
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ATAPI_DEVICE_PATH mAtapiDevicePathTemplate = {
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{
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MESSAGING_DEVICE_PATH,
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MSG_ATAPI_DP,
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(UINT8) (sizeof (ATAPI_DEVICE_PATH)),
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(UINT8) ((sizeof (ATAPI_DEVICE_PATH)) >> 8),
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},
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0,
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0,
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0
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};
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SATA_DEVICE_PATH mSataDevicePathTemplate = {
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{
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MESSAGING_DEVICE_PATH,
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MSG_SATA_DP,
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(UINT8) (sizeof (SATA_DEVICE_PATH)),
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(UINT8) ((sizeof (SATA_DEVICE_PATH)) >> 8),
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},
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0,
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0,
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0
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};
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UINT8 mScsiId[TARGET_MAX_BYTES] = {
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0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF
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};
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/**
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Sends an ATA command to an ATA device that is attached to the ATA controller. This function
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supports both blocking I/O and non-blocking I/O. The blocking I/O functionality is required,
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and the non-blocking I/O functionality is optional.
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@param[in] Port The port number of the ATA device to send the command.
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@param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.
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If there is no port multiplier, then specify 0.
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@param[in, out] Packet A pointer to the ATA command to send to the ATA device specified by Port
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and PortMultiplierPort.
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@param[in] Instance Pointer to the ATA_ATAPI_PASS_THRU_INSTANCE.
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@param[in] Task Optional. Pointer to the ATA_NONBLOCK_TASK
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used by non-blocking mode.
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@retval EFI_SUCCESS The ATA command was sent by the host. For
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bi-directional commands, InTransferLength bytes
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were transferred from InDataBuffer. For
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write and bi-directional commands, OutTransferLength
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bytes were transferred by OutDataBuffer.
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@retval EFI_BAD_BUFFER_SIZE The ATA command was not executed. The number
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of bytes that could be transferred is returned
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in InTransferLength. For write and bi-directional
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commands, OutTransferLength bytes were transferred
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by OutDataBuffer.
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@retval EFI_NOT_READY The ATA command could not be sent because
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there are too many ATA commands already
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queued. The caller may retry again later.
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@retval EFI_DEVICE_ERROR A device error occurred while attempting
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to send the ATA command.
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@retval EFI_INVALID_PARAMETER Port, PortMultiplierPort, or the contents
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of Acb are invalid. The ATA command was
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not sent, so no additional status information
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is available.
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**/
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EFI_STATUS
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EFIAPI
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AtaPassThruPassThruExecute (
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IN UINT16 Port,
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IN UINT16 PortMultiplierPort,
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IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet,
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IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,
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IN ATA_NONBLOCK_TASK *Task OPTIONAL
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)
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{
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EFI_ATA_PASS_THRU_CMD_PROTOCOL Protocol;
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EFI_ATA_HC_WORK_MODE Mode;
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EFI_STATUS Status;
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Protocol = Packet->Protocol;
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Mode = Instance->Mode;
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switch (Mode) {
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case EfiAtaIdeMode:
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//
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// Reassign IDE mode io port registers' base addresses
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//
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Status = GetIdeRegisterIoAddr (Instance->PciIo, Instance->IdeRegisters);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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switch (Protocol) {
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case EFI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA:
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Status = AtaNonDataCommandIn (
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Instance->PciIo,
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&Instance->IdeRegisters[Port],
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Packet->Acb,
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Packet->Asb,
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Packet->Timeout,
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Task
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);
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break;
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case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_IN:
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Status = AtaPioDataInOut (
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Instance->PciIo,
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&Instance->IdeRegisters[Port],
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Packet->InDataBuffer,
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Packet->InTransferLength,
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TRUE,
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Packet->Acb,
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Packet->Asb,
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Packet->Timeout,
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Task
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);
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break;
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case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_OUT:
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Status = AtaPioDataInOut (
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Instance->PciIo,
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&Instance->IdeRegisters[Port],
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Packet->OutDataBuffer,
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Packet->OutTransferLength,
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FALSE,
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Packet->Acb,
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Packet->Asb,
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Packet->Timeout,
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Task
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);
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break;
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case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_IN:
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Status = AtaUdmaInOut (
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Instance,
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&Instance->IdeRegisters[Port],
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TRUE,
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Packet->InDataBuffer,
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Packet->InTransferLength,
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Packet->Acb,
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Packet->Asb,
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Packet->Timeout,
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Task
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);
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break;
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case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_OUT:
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Status = AtaUdmaInOut (
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Instance,
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&Instance->IdeRegisters[Port],
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FALSE,
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Packet->OutDataBuffer,
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Packet->OutTransferLength,
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Packet->Acb,
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Packet->Asb,
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Packet->Timeout,
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Task
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);
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break;
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default :
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return EFI_UNSUPPORTED;
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}
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break;
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case EfiAtaAhciMode :
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switch (Protocol) {
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case EFI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA:
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Status = AhciNonDataTransfer (
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Instance->PciIo,
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&Instance->AhciRegisters,
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(UINT8)Port,
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(UINT8)PortMultiplierPort,
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NULL,
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0,
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Packet->Acb,
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Packet->Asb,
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Packet->Timeout,
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Task
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);
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break;
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case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_IN:
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Status = AhciPioTransfer (
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Instance->PciIo,
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&Instance->AhciRegisters,
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(UINT8)Port,
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(UINT8)PortMultiplierPort,
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NULL,
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0,
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TRUE,
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Packet->Acb,
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Packet->Asb,
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Packet->InDataBuffer,
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Packet->InTransferLength,
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Packet->Timeout,
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Task
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);
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break;
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case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_OUT:
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Status = AhciPioTransfer (
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Instance->PciIo,
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&Instance->AhciRegisters,
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(UINT8)Port,
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(UINT8)PortMultiplierPort,
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NULL,
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0,
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FALSE,
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Packet->Acb,
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Packet->Asb,
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Packet->OutDataBuffer,
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Packet->OutTransferLength,
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Packet->Timeout,
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Task
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);
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break;
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case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_IN:
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Status = AhciDmaTransfer (
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Instance,
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&Instance->AhciRegisters,
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(UINT8)Port,
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(UINT8)PortMultiplierPort,
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NULL,
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0,
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TRUE,
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Packet->Acb,
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Packet->Asb,
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Packet->InDataBuffer,
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Packet->InTransferLength,
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Packet->Timeout,
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Task
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);
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break;
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case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_OUT:
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Status = AhciDmaTransfer (
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Instance,
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&Instance->AhciRegisters,
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(UINT8)Port,
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(UINT8)PortMultiplierPort,
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NULL,
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0,
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FALSE,
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Packet->Acb,
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Packet->Asb,
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Packet->OutDataBuffer,
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Packet->OutTransferLength,
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Packet->Timeout,
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Task
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);
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break;
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default :
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return EFI_UNSUPPORTED;
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}
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break;
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default:
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Status = EFI_DEVICE_ERROR;
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break;
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}
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return Status;
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}
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/**
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Call back function when the timer event is signaled.
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@param[in] Event The Event this notify function registered to.
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@param[in] Context Pointer to the context data registered to the
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Event.
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**/
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VOID
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EFIAPI
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AsyncNonBlockingTransferRoutine (
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EFI_EVENT Event,
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VOID* Context
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)
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{
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LIST_ENTRY *Entry;
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LIST_ENTRY *EntryHeader;
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ATA_NONBLOCK_TASK *Task;
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EFI_STATUS Status;
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ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
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Instance = (ATA_ATAPI_PASS_THRU_INSTANCE *) Context;
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EntryHeader = &Instance->NonBlockingTaskList;
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//
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// Get the Taks from the Taks List and execute it, until there is
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// no task in the list or the device is busy with task (EFI_NOT_READY).
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//
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while (TRUE) {
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if (!IsListEmpty (EntryHeader)) {
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Entry = GetFirstNode (EntryHeader);
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Task = ATA_NON_BLOCK_TASK_FROM_ENTRY (Entry);
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} else {
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return;
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}
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Status = AtaPassThruPassThruExecute (
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Task->Port,
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Task->PortMultiplier,
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Task->Packet,
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Instance,
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Task
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);
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//
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// If the data transfer meet a error which is not dumped into the status block
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// set the Status block related bit.
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//
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if ((Status != EFI_NOT_READY) && (Status != EFI_SUCCESS)) {
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Task->Packet->Asb->AtaStatus = 0x01;
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}
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//
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// For Non blocking mode, the Status of EFI_NOT_READY means the operation
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// is not finished yet. Other Status indicate the operation is either
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// successful or failed.
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//
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if (Status != EFI_NOT_READY) {
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RemoveEntryList (&Task->Link);
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gBS->SignalEvent (Task->Event);
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FreePool (Task);
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} else {
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break;
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}
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}
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}
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/**
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The Entry Point of module.
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@param[in] ImageHandle The firmware allocated handle for the EFI image.
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@param[in] SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The entry point is executed successfully.
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@retval other Some error occurs when executing this entry point.
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**/
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EFI_STATUS
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EFIAPI
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InitializeAtaAtapiPassThru (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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//
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// Install driver model protocol(s).
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//
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Status = EfiLibInstallDriverBindingComponentName2 (
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ImageHandle,
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SystemTable,
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&gAtaAtapiPassThruDriverBinding,
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ImageHandle,
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&gAtaAtapiPassThruComponentName,
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&gAtaAtapiPassThruComponentName2
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);
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ASSERT_EFI_ERROR (Status);
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return Status;
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}
|
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|
|
/**
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Tests to see if this driver supports a given controller. If a child device is provided,
|
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it further tests to see if this driver supports creating a handle for the specified child device.
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|
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This function checks to see if the driver specified by This supports the device specified by
|
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ControllerHandle. Drivers will typically use the device path attached to
|
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ControllerHandle and/or the services from the bus I/O abstraction attached to
|
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ControllerHandle to determine if the driver supports ControllerHandle. This function
|
|
may be called many times during platform initialization. In order to reduce boot times, the tests
|
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performed by this function must be very small, and take as little time as possible to execute. This
|
|
function must not change the state of any hardware devices, and this function must be aware that the
|
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device specified by ControllerHandle may already be managed by the same driver or a
|
|
different driver. This function must match its calls to AllocatePages() with FreePages(),
|
|
AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol().
|
|
Because ControllerHandle may have been previously started by the same driver, if a protocol is
|
|
already in the opened state, then it must not be closed with CloseProtocol(). This is required
|
|
to guarantee the state of ControllerHandle is not modified by this function.
|
|
|
|
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
|
|
@param[in] ControllerHandle The handle of the controller to test. This handle
|
|
must support a protocol interface that supplies
|
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an I/O abstraction to the driver.
|
|
@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
|
|
parameter is ignored by device drivers, and is optional for bus
|
|
drivers. For bus drivers, if this parameter is not NULL, then
|
|
the bus driver must determine if the bus controller specified
|
|
by ControllerHandle and the child controller specified
|
|
by RemainingDevicePath are both supported by this
|
|
bus driver.
|
|
|
|
@retval EFI_SUCCESS The device specified by ControllerHandle and
|
|
RemainingDevicePath is supported by the driver specified by This.
|
|
@retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
|
|
RemainingDevicePath is already being managed by the driver
|
|
specified by This.
|
|
@retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
|
|
RemainingDevicePath is already being managed by a different
|
|
driver or an application that requires exclusive access.
|
|
Currently not implemented.
|
|
@retval EFI_UNSUPPORTED The device specified by ControllerHandle and
|
|
RemainingDevicePath is not supported by the driver specified by This.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaAtapiPassThruSupported (
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
IN EFI_HANDLE Controller,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
|
|
EFI_PCI_IO_PROTOCOL *PciIo;
|
|
PCI_TYPE00 PciData;
|
|
EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeControllerInit;
|
|
|
|
//
|
|
// SATA Controller is a device driver, and should ingore the
|
|
// "RemainingDevicePath" according to UEFI spec
|
|
//
|
|
Status = gBS->OpenProtocol (
|
|
Controller,
|
|
&gEfiDevicePathProtocolGuid,
|
|
(VOID *) &ParentDevicePath,
|
|
This->DriverBindingHandle,
|
|
Controller,
|
|
EFI_OPEN_PROTOCOL_BY_DRIVER
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
//
|
|
// EFI_ALREADY_STARTED is also an error
|
|
//
|
|
return Status;
|
|
}
|
|
//
|
|
// Close the protocol because we don't use it here
|
|
//
|
|
gBS->CloseProtocol (
|
|
Controller,
|
|
&gEfiDevicePathProtocolGuid,
|
|
This->DriverBindingHandle,
|
|
Controller
|
|
);
|
|
|
|
Status = gBS->OpenProtocol (
|
|
Controller,
|
|
&gEfiIdeControllerInitProtocolGuid,
|
|
(VOID **) &IdeControllerInit,
|
|
This->DriverBindingHandle,
|
|
Controller,
|
|
EFI_OPEN_PROTOCOL_BY_DRIVER
|
|
);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
//
|
|
// EFI_ALREADY_STARTED is also an error
|
|
//
|
|
return Status;
|
|
}
|
|
|
|
//
|
|
// Close the I/O Abstraction(s) used to perform the supported test
|
|
//
|
|
gBS->CloseProtocol (
|
|
Controller,
|
|
&gEfiIdeControllerInitProtocolGuid,
|
|
This->DriverBindingHandle,
|
|
Controller
|
|
);
|
|
|
|
//
|
|
// Now test the EfiPciIoProtocol
|
|
//
|
|
Status = gBS->OpenProtocol (
|
|
Controller,
|
|
&gEfiPciIoProtocolGuid,
|
|
(VOID **) &PciIo,
|
|
This->DriverBindingHandle,
|
|
Controller,
|
|
EFI_OPEN_PROTOCOL_GET_PROTOCOL
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
//
|
|
// Now further check the PCI header: Base class (offset 0x0B) and
|
|
// Sub Class (offset 0x0A). This controller should be an ATA controller
|
|
//
|
|
Status = PciIo->Pci.Read (
|
|
PciIo,
|
|
EfiPciIoWidthUint8,
|
|
PCI_CLASSCODE_OFFSET,
|
|
sizeof (PciData.Hdr.ClassCode),
|
|
PciData.Hdr.ClassCode
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
if (IS_PCI_IDE (&PciData) || IS_PCI_SATADPA (&PciData)) {
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
/**
|
|
Starts a device controller or a bus controller.
|
|
|
|
The Start() function is designed to be invoked from the EFI boot service ConnectController().
|
|
As a result, much of the error checking on the parameters to Start() has been moved into this
|
|
common boot service. It is legal to call Start() from other locations,
|
|
but the following calling restrictions must be followed, or the system behavior will not be deterministic.
|
|
1. ControllerHandle must be a valid EFI_HANDLE.
|
|
2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned
|
|
EFI_DEVICE_PATH_PROTOCOL.
|
|
3. Prior to calling Start(), the Supported() function for the driver specified by This must
|
|
have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.
|
|
|
|
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
|
|
@param[in] ControllerHandle The handle of the controller to start. This handle
|
|
must support a protocol interface that supplies
|
|
an I/O abstraction to the driver.
|
|
@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
|
|
parameter is ignored by device drivers, and is optional for bus
|
|
drivers. For a bus driver, if this parameter is NULL, then handles
|
|
for all the children of Controller are created by this driver.
|
|
If this parameter is not NULL and the first Device Path Node is
|
|
not the End of Device Path Node, then only the handle for the
|
|
child device specified by the first Device Path Node of
|
|
RemainingDevicePath is created by this driver.
|
|
If the first Device Path Node of RemainingDevicePath is
|
|
the End of Device Path Node, no child handle is created by this
|
|
driver.
|
|
|
|
@retval EFI_SUCCESS The device was started.
|
|
@retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.
|
|
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
|
|
@retval Others The driver failded to start the device.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaAtapiPassThruStart (
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
IN EFI_HANDLE Controller,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeControllerInit;
|
|
ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
|
|
EFI_PCI_IO_PROTOCOL *PciIo;
|
|
UINT64 Supports;
|
|
BOOLEAN PciAttributesSaved;
|
|
UINT64 OriginalPciAttributes;
|
|
|
|
Status = EFI_SUCCESS;
|
|
IdeControllerInit = NULL;
|
|
Instance = NULL;
|
|
PciAttributesSaved = FALSE;
|
|
OriginalPciAttributes = 0;
|
|
|
|
DEBUG ((EFI_D_INFO, "==AtaAtapiPassThru Start== Controller = %x\n", Controller));
|
|
|
|
Status = gBS->OpenProtocol (
|
|
Controller,
|
|
&gEfiIdeControllerInitProtocolGuid,
|
|
(VOID **) &IdeControllerInit,
|
|
This->DriverBindingHandle,
|
|
Controller,
|
|
EFI_OPEN_PROTOCOL_BY_DRIVER
|
|
);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
DEBUG ((EFI_D_ERROR, "Open Ide_Controller_Init Error, Status=%r", Status));
|
|
goto ErrorExit;
|
|
}
|
|
|
|
Status = gBS->OpenProtocol (
|
|
Controller,
|
|
&gEfiPciIoProtocolGuid,
|
|
(VOID **) &PciIo,
|
|
This->DriverBindingHandle,
|
|
Controller,
|
|
EFI_OPEN_PROTOCOL_GET_PROTOCOL
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
DEBUG ((EFI_D_ERROR, "Get Pci_Io Protocol Error, Status=%r", Status));
|
|
goto ErrorExit;
|
|
}
|
|
|
|
Status = PciIo->Attributes (
|
|
PciIo,
|
|
EfiPciIoAttributeOperationGet,
|
|
0,
|
|
&OriginalPciAttributes
|
|
);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
goto ErrorExit;
|
|
}
|
|
PciAttributesSaved = TRUE;
|
|
|
|
Status = PciIo->Attributes (
|
|
PciIo,
|
|
EfiPciIoAttributeOperationSupported,
|
|
0,
|
|
&Supports
|
|
);
|
|
if (!EFI_ERROR (Status)) {
|
|
Supports &= EFI_PCI_DEVICE_ENABLE;
|
|
Status = PciIo->Attributes (
|
|
PciIo,
|
|
EfiPciIoAttributeOperationEnable,
|
|
Supports,
|
|
NULL
|
|
);
|
|
}
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
goto ErrorExit;
|
|
}
|
|
|
|
//
|
|
// Allocate a buffer to store the ATA_ATAPI_PASS_THRU_INSTANCE data structure
|
|
//
|
|
Instance = AllocateCopyPool (sizeof (ATA_ATAPI_PASS_THRU_INSTANCE), &gAtaAtapiPassThruInstanceTemplate);
|
|
if (Instance == NULL) {
|
|
goto ErrorExit;
|
|
}
|
|
|
|
Instance->ControllerHandle = Controller;
|
|
Instance->IdeControllerInit = IdeControllerInit;
|
|
Instance->PciIo = PciIo;
|
|
Instance->OriginalPciAttributes = OriginalPciAttributes;
|
|
Instance->AtaPassThru.Mode = &Instance->AtaPassThruMode;
|
|
Instance->ExtScsiPassThru.Mode = &Instance->ExtScsiPassThruMode;
|
|
InitializeListHead(&Instance->DeviceList);
|
|
InitializeListHead(&Instance->NonBlockingTaskList);
|
|
|
|
Instance->TimerEvent = NULL;
|
|
|
|
Status = gBS->CreateEvent (
|
|
EVT_TIMER | EVT_NOTIFY_SIGNAL,
|
|
TPL_NOTIFY,
|
|
AsyncNonBlockingTransferRoutine,
|
|
Instance,
|
|
&Instance->TimerEvent
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ErrorExit;
|
|
}
|
|
|
|
//
|
|
// Set 1ms timer.
|
|
//
|
|
Status = gBS->SetTimer (Instance->TimerEvent, TimerPeriodic, 10000);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ErrorExit;
|
|
}
|
|
|
|
//
|
|
// Enumerate all inserted ATA devices.
|
|
//
|
|
Status = EnumerateAttachedDevice (Instance);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ErrorExit;
|
|
}
|
|
|
|
Status = gBS->InstallMultipleProtocolInterfaces (
|
|
&Controller,
|
|
&gEfiAtaPassThruProtocolGuid, &(Instance->AtaPassThru),
|
|
&gEfiExtScsiPassThruProtocolGuid, &(Instance->ExtScsiPassThru),
|
|
NULL
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
return Status;
|
|
|
|
ErrorExit:
|
|
if (IdeControllerInit != NULL) {
|
|
gBS->CloseProtocol (
|
|
Controller,
|
|
&gEfiIdeControllerInitProtocolGuid,
|
|
This->DriverBindingHandle,
|
|
Controller
|
|
);
|
|
}
|
|
|
|
if (Instance->TimerEvent != NULL) {
|
|
gBS->CloseEvent (Instance->TimerEvent);
|
|
}
|
|
|
|
//
|
|
// Remove all inserted ATA devices.
|
|
//
|
|
DestroyDeviceInfoList(Instance);
|
|
|
|
if (Instance != NULL) {
|
|
FreePool (Instance);
|
|
}
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
/**
|
|
Stops a device controller or a bus controller.
|
|
|
|
The Stop() function is designed to be invoked from the EFI boot service DisconnectController().
|
|
As a result, much of the error checking on the parameters to Stop() has been moved
|
|
into this common boot service. It is legal to call Stop() from other locations,
|
|
but the following calling restrictions must be followed, or the system behavior will not be deterministic.
|
|
1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this
|
|
same driver's Start() function.
|
|
2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid
|
|
EFI_HANDLE. In addition, all of these handles must have been created in this driver's
|
|
Start() function, and the Start() function must have called OpenProtocol() on
|
|
ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
|
|
|
|
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
|
|
@param[in] ControllerHandle A handle to the device being stopped. The handle must
|
|
support a bus specific I/O protocol for the driver
|
|
to use to stop the device.
|
|
@param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.
|
|
@param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL
|
|
if NumberOfChildren is 0.
|
|
|
|
@retval EFI_SUCCESS The device was stopped.
|
|
@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaAtapiPassThruStop (
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
IN EFI_HANDLE Controller,
|
|
IN UINTN NumberOfChildren,
|
|
IN EFI_HANDLE *ChildHandleBuffer
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
|
|
EFI_ATA_PASS_THRU_PROTOCOL *AtaPassThru;
|
|
EFI_PCI_IO_PROTOCOL *PciIo;
|
|
EFI_AHCI_REGISTERS *AhciRegisters;
|
|
UINT64 Supports;
|
|
|
|
DEBUG ((EFI_D_INFO, "==AtaAtapiPassThru Stop== Controller = %x\n", Controller));
|
|
|
|
Status = gBS->OpenProtocol (
|
|
Controller,
|
|
&gEfiAtaPassThruProtocolGuid,
|
|
(VOID **) &AtaPassThru,
|
|
This->DriverBindingHandle,
|
|
Controller,
|
|
EFI_OPEN_PROTOCOL_GET_PROTOCOL
|
|
);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
|
|
Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (AtaPassThru);
|
|
|
|
//
|
|
// Close Non-Blocking timer and free Task list.
|
|
//
|
|
if (Instance->TimerEvent != NULL) {
|
|
gBS->CloseEvent (Instance->TimerEvent);
|
|
Instance->TimerEvent = NULL;
|
|
}
|
|
DestroyAsynTaskList (Instance);
|
|
|
|
//
|
|
// Disable this ATA host controller.
|
|
//
|
|
PciIo = Instance->PciIo;
|
|
Status = PciIo->Attributes (
|
|
PciIo,
|
|
EfiPciIoAttributeOperationSupported,
|
|
0,
|
|
&Supports
|
|
);
|
|
if (!EFI_ERROR (Status)) {
|
|
Supports &= EFI_PCI_DEVICE_ENABLE;
|
|
PciIo->Attributes (
|
|
PciIo,
|
|
EfiPciIoAttributeOperationDisable,
|
|
Supports,
|
|
NULL
|
|
);
|
|
}
|
|
|
|
//
|
|
// Restore original PCI attributes
|
|
//
|
|
Status = PciIo->Attributes (
|
|
PciIo,
|
|
EfiPciIoAttributeOperationSet,
|
|
Instance->OriginalPciAttributes,
|
|
NULL
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
gBS->UninstallMultipleProtocolInterfaces (
|
|
Controller,
|
|
&gEfiAtaPassThruProtocolGuid, &(Instance->AtaPassThru),
|
|
&gEfiExtScsiPassThruProtocolGuid, &(Instance->ExtScsiPassThru),
|
|
NULL
|
|
);
|
|
|
|
//
|
|
// Close protocols opened by AtaAtapiPassThru controller driver
|
|
//
|
|
gBS->CloseProtocol (
|
|
Controller,
|
|
&gEfiIdeControllerInitProtocolGuid,
|
|
This->DriverBindingHandle,
|
|
Controller
|
|
);
|
|
|
|
//
|
|
// Free allocated resource
|
|
//
|
|
DestroyDeviceInfoList(Instance);
|
|
|
|
//
|
|
// If the current working mode is AHCI mode, then pre-allocated resource
|
|
// for AHCI initialization should be released.
|
|
//
|
|
if (Instance->Mode == EfiAtaAhciMode) {
|
|
AhciRegisters = &Instance->AhciRegisters;
|
|
PciIo->Unmap (
|
|
PciIo,
|
|
AhciRegisters->MapCommandTable
|
|
);
|
|
PciIo->FreeBuffer (
|
|
PciIo,
|
|
EFI_SIZE_TO_PAGES ((UINTN) AhciRegisters->MaxCommandTableSize),
|
|
AhciRegisters->AhciCommandTable
|
|
);
|
|
PciIo->Unmap (
|
|
PciIo,
|
|
AhciRegisters->MapCmdList
|
|
);
|
|
PciIo->FreeBuffer (
|
|
PciIo,
|
|
EFI_SIZE_TO_PAGES ((UINTN) AhciRegisters->MaxCommandListSize),
|
|
AhciRegisters->AhciCmdList
|
|
);
|
|
PciIo->Unmap (
|
|
PciIo,
|
|
AhciRegisters->MapRFis
|
|
);
|
|
PciIo->FreeBuffer (
|
|
PciIo,
|
|
EFI_SIZE_TO_PAGES ((UINTN) AhciRegisters->MaxReceiveFisSize),
|
|
AhciRegisters->AhciRFis
|
|
);
|
|
}
|
|
FreePool (Instance);
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
Traverse the attached ATA devices list to find out the device to access.
|
|
|
|
@param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
|
|
@param[in] Port The port number of the ATA device to send the command.
|
|
@param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.
|
|
If there is no port multiplier, then specify 0.
|
|
@param[in] DeviceType The device type of the ATA device.
|
|
|
|
@retval The pointer to the data structure of the device info to access.
|
|
|
|
**/
|
|
LIST_ENTRY *
|
|
EFIAPI
|
|
SearchDeviceInfoList (
|
|
IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,
|
|
IN UINT16 Port,
|
|
IN UINT16 PortMultiplier,
|
|
IN EFI_ATA_DEVICE_TYPE DeviceType
|
|
)
|
|
{
|
|
EFI_ATA_DEVICE_INFO *DeviceInfo;
|
|
LIST_ENTRY *Node;
|
|
|
|
Node = GetFirstNode (&Instance->DeviceList);
|
|
while (!IsNull (&Instance->DeviceList, Node)) {
|
|
DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
|
|
|
|
if ((DeviceInfo->Type == DeviceType) &&
|
|
(Port == DeviceInfo->Port) &&
|
|
(PortMultiplier == DeviceInfo->PortMultiplier)) {
|
|
return Node;
|
|
}
|
|
|
|
Node = GetNextNode (&Instance->DeviceList, Node);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
Allocate device info data structure to contain device info.
|
|
And insert the data structure to the tail of device list for tracing.
|
|
|
|
@param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
|
|
@param[in] Port The port number of the ATA device to send the command.
|
|
@param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.
|
|
If there is no port multiplier, then specify 0.
|
|
@param[in] DeviceType The device type of the ATA device.
|
|
@param[in] IdentifyData The data buffer to store the output of the IDENTIFY cmd.
|
|
|
|
@retval EFI_SUCCESS Successfully insert the ata device to the tail of device list.
|
|
@retval EFI_OUT_OF_RESOURCES Can not allocate enough resource for use.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
CreateNewDeviceInfo (
|
|
IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,
|
|
IN UINT16 Port,
|
|
IN UINT16 PortMultiplier,
|
|
IN EFI_ATA_DEVICE_TYPE DeviceType,
|
|
IN EFI_IDENTIFY_DATA *IdentifyData
|
|
)
|
|
{
|
|
EFI_ATA_DEVICE_INFO *DeviceInfo;
|
|
|
|
DeviceInfo = AllocateZeroPool (sizeof (EFI_ATA_DEVICE_INFO));
|
|
|
|
if (DeviceInfo == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
DeviceInfo->Signature = ATA_ATAPI_DEVICE_SIGNATURE;
|
|
DeviceInfo->Port = Port;
|
|
DeviceInfo->PortMultiplier = PortMultiplier;
|
|
DeviceInfo->Type = DeviceType;
|
|
|
|
if (IdentifyData != NULL) {
|
|
DeviceInfo->IdentifyData = AllocateCopyPool (sizeof (EFI_IDENTIFY_DATA), IdentifyData);
|
|
if (DeviceInfo->IdentifyData == NULL) {
|
|
FreePool (DeviceInfo);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
}
|
|
|
|
InsertTailList (&Instance->DeviceList, &DeviceInfo->Link);
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Destroy all attached ATA devices info.
|
|
|
|
@param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
DestroyDeviceInfoList (
|
|
IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance
|
|
)
|
|
{
|
|
EFI_ATA_DEVICE_INFO *DeviceInfo;
|
|
LIST_ENTRY *Node;
|
|
|
|
Node = GetFirstNode (&Instance->DeviceList);
|
|
while (!IsNull (&Instance->DeviceList, Node)) {
|
|
DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
|
|
|
|
Node = GetNextNode (&Instance->DeviceList, Node);
|
|
|
|
RemoveEntryList (&DeviceInfo->Link);
|
|
if (DeviceInfo->IdentifyData != NULL) {
|
|
FreePool (DeviceInfo->IdentifyData);
|
|
}
|
|
FreePool (DeviceInfo);
|
|
}
|
|
}
|
|
|
|
/**
|
|
Destroy all pending non blocking tasks.
|
|
|
|
@param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
DestroyAsynTaskList (
|
|
IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance
|
|
)
|
|
{
|
|
LIST_ENTRY *Entry;
|
|
LIST_ENTRY *DelEntry;
|
|
ATA_NONBLOCK_TASK *Task;
|
|
EFI_TPL OldTpl;
|
|
|
|
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
|
|
if (!IsListEmpty (&Instance->NonBlockingTaskList)) {
|
|
//
|
|
// Free the Subtask list.
|
|
//
|
|
for (Entry = (&Instance->NonBlockingTaskList)->ForwardLink;
|
|
Entry != (&Instance->NonBlockingTaskList);
|
|
) {
|
|
DelEntry = Entry;
|
|
Entry = Entry->ForwardLink;
|
|
Task = ATA_NON_BLOCK_TASK_FROM_ENTRY (DelEntry);
|
|
|
|
RemoveEntryList (DelEntry);
|
|
FreePool (Task);
|
|
}
|
|
}
|
|
gBS->RestoreTPL (OldTpl);
|
|
}
|
|
|
|
/**
|
|
Enumerate all attached ATA devices at IDE mode or AHCI mode separately.
|
|
|
|
The function is designed to enumerate all attached ATA devices.
|
|
|
|
@param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
|
|
|
|
@retval EFI_SUCCESS Successfully enumerate attached ATA devices.
|
|
@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
EnumerateAttachedDevice (
|
|
IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
PCI_TYPE00 PciData;
|
|
UINT8 ClassCode;
|
|
|
|
Status = EFI_SUCCESS;
|
|
|
|
Status = Instance->PciIo->Pci.Read (
|
|
Instance->PciIo,
|
|
EfiPciIoWidthUint8,
|
|
PCI_CLASSCODE_OFFSET,
|
|
sizeof (PciData.Hdr.ClassCode),
|
|
PciData.Hdr.ClassCode
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
ClassCode = PciData.Hdr.ClassCode[1];
|
|
|
|
switch (ClassCode) {
|
|
case PCI_CLASS_MASS_STORAGE_IDE :
|
|
//
|
|
// The ATA controller is working at IDE mode
|
|
//
|
|
Instance->Mode = EfiAtaIdeMode;
|
|
|
|
Status = IdeModeInitialization (Instance);
|
|
if (EFI_ERROR (Status)) {
|
|
Status = EFI_DEVICE_ERROR;
|
|
goto Done;
|
|
}
|
|
break;
|
|
case PCI_CLASS_MASS_STORAGE_SATADPA :
|
|
//
|
|
// The ATA controller is working at AHCI mode
|
|
//
|
|
Instance->Mode = EfiAtaAhciMode;
|
|
|
|
Status = AhciModeInitialization (Instance);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
Status = EFI_DEVICE_ERROR;
|
|
goto Done;
|
|
}
|
|
|
|
break;
|
|
default :
|
|
Status = EFI_UNSUPPORTED;
|
|
}
|
|
|
|
Done:
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
Sends an ATA command to an ATA device that is attached to the ATA controller. This function
|
|
supports both blocking I/O and non-blocking I/O. The blocking I/O functionality is required,
|
|
and the non-blocking I/O functionality is optional.
|
|
|
|
@param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
|
|
@param[in] Port The port number of the ATA device to send the command.
|
|
@param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.
|
|
If there is no port multiplier, then specify 0.
|
|
@param[in, out] Packet A pointer to the ATA command to send to the ATA device specified by Port
|
|
and PortMultiplierPort.
|
|
@param[in] 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 ATA command completes.
|
|
|
|
@retval EFI_SUCCESS The ATA command was sent by the host. For bi-directional commands,
|
|
InTransferLength bytes were transferred from InDataBuffer. For write and
|
|
bi-directional commands, OutTransferLength bytes were transferred by OutDataBuffer.
|
|
@retval EFI_BAD_BUFFER_SIZE The ATA command was not executed. The number of bytes that could be transferred
|
|
is returned in InTransferLength. For write and bi-directional commands,
|
|
OutTransferLength bytes were transferred by OutDataBuffer.
|
|
@retval EFI_NOT_READY The ATA command could not be sent because there are too many ATA commands
|
|
already queued. The caller may retry again later.
|
|
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send the ATA command.
|
|
@retval EFI_INVALID_PARAMETER Port, PortMultiplierPort, or the contents of Acb are invalid. The ATA
|
|
command was not sent, so no additional status information is available.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaPassThruPassThru (
|
|
IN EFI_ATA_PASS_THRU_PROTOCOL *This,
|
|
IN UINT16 Port,
|
|
IN UINT16 PortMultiplierPort,
|
|
IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet,
|
|
IN EFI_EVENT Event OPTIONAL
|
|
)
|
|
{
|
|
ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
|
|
LIST_ENTRY *Node;
|
|
EFI_ATA_DEVICE_INFO *DeviceInfo;
|
|
EFI_IDENTIFY_DATA *IdentifyData;
|
|
UINT64 Capacity;
|
|
UINT32 MaxSectorCount;
|
|
ATA_NONBLOCK_TASK *Task;
|
|
EFI_TPL OldTpl;
|
|
|
|
Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
|
|
|
|
if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->InDataBuffer, This->Mode->IoAlign)) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->OutDataBuffer, This->Mode->IoAlign)) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->Asb, This->Mode->IoAlign)) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// convert the transfer length from sector count to byte.
|
|
//
|
|
if (((Packet->Length & EFI_ATA_PASS_THRU_LENGTH_BYTES) == 0) &&
|
|
(Packet->InTransferLength != 0)) {
|
|
Packet->InTransferLength = Packet->InTransferLength * 0x200;
|
|
}
|
|
|
|
//
|
|
// convert the transfer length from sector count to byte.
|
|
//
|
|
if (((Packet->Length & EFI_ATA_PASS_THRU_LENGTH_BYTES) == 0) &&
|
|
(Packet->OutTransferLength != 0)) {
|
|
Packet->OutTransferLength = Packet->OutTransferLength * 0x200;
|
|
}
|
|
|
|
Node = SearchDeviceInfoList (Instance, Port, PortMultiplierPort, EfiIdeHarddisk);
|
|
|
|
if (Node == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// Check whether this device needs 48-bit addressing (ATAPI-6 ata device).
|
|
// Per ATA-6 spec, word83: bit15 is zero and bit14 is one.
|
|
// If bit10 is one, it means the ata device support 48-bit addressing.
|
|
//
|
|
DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
|
|
IdentifyData = DeviceInfo->IdentifyData;
|
|
MaxSectorCount = 0x100;
|
|
if ((IdentifyData->AtaData.command_set_supported_83 & (BIT10 | BIT15 | BIT14)) == 0x4400) {
|
|
Capacity = *((UINT64 *)IdentifyData->AtaData.maximum_lba_for_48bit_addressing);
|
|
if (Capacity > 0xFFFFFFF) {
|
|
//
|
|
// Capacity exceeds 120GB. 48-bit addressing is really needed
|
|
// In this case, the max sector count is 0x10000
|
|
//
|
|
MaxSectorCount = 0x10000;
|
|
}
|
|
}
|
|
|
|
//
|
|
// If the data buffer described by InDataBuffer/OutDataBuffer and InTransferLength/OutTransferLength
|
|
// is too big to be transferred in a single command, then no data is transferred and EFI_BAD_BUFFER_SIZE
|
|
// is returned.
|
|
//
|
|
if (((Packet->InTransferLength != 0) && (Packet->InTransferLength > MaxSectorCount * 0x200)) ||
|
|
((Packet->OutTransferLength != 0) && (Packet->OutTransferLength > MaxSectorCount * 0x200))) {
|
|
return EFI_BAD_BUFFER_SIZE;
|
|
}
|
|
|
|
//
|
|
// For non-blocking mode, queue the Task into the list.
|
|
//
|
|
if (Event != NULL) {
|
|
Task = AllocateZeroPool (sizeof (ATA_NONBLOCK_TASK));
|
|
if (Task == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
Task->Signature = ATA_NONBLOCKING_TASK_SIGNATURE;
|
|
Task->Port = Port;
|
|
Task->PortMultiplier = PortMultiplierPort;
|
|
Task->Packet = Packet;
|
|
Task->Event = Event;
|
|
Task->IsStart = FALSE;
|
|
Task->RetryTimes = 0;
|
|
|
|
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
|
|
InsertTailList (&Instance->NonBlockingTaskList, &Task->Link);
|
|
gBS->RestoreTPL (OldTpl);
|
|
|
|
return EFI_SUCCESS;
|
|
} else {
|
|
return AtaPassThruPassThruExecute (
|
|
Port,
|
|
PortMultiplierPort,
|
|
Packet,
|
|
Instance,
|
|
NULL
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
Used to retrieve the list of legal port numbers for ATA devices on an ATA controller.
|
|
These can either be the list of ports where ATA devices are actually present or the
|
|
list of legal port numbers for the ATA controller. Regardless, the caller of this
|
|
function must probe the port number returned to see if an ATA device is actually
|
|
present at that location on the ATA controller.
|
|
|
|
The GetNextPort() function retrieves the port number on an ATA controller. If on input
|
|
Port is 0xFFFF, then the port number of the first port on the ATA controller is returned
|
|
in Port and EFI_SUCCESS is returned.
|
|
|
|
If Port is a port number that was returned on a previous call to GetNextPort(), then the
|
|
port number of the next port on the ATA controller is returned in Port, and EFI_SUCCESS
|
|
is returned. If Port is not 0xFFFF and Port was not returned on a previous call to
|
|
GetNextPort(), then EFI_INVALID_PARAMETER is returned.
|
|
|
|
If Port is the port number of the last port on the ATA controller, then EFI_NOT_FOUND is
|
|
returned.
|
|
|
|
@param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
|
|
@param[in, out] Port On input, a pointer to the port number on the ATA controller.
|
|
On output, a pointer to the next port number on the ATA
|
|
controller. An input value of 0xFFFF retrieves the first port
|
|
number on the ATA controller.
|
|
|
|
@retval EFI_SUCCESS The next port number on the ATA controller was returned in Port.
|
|
@retval EFI_NOT_FOUND There are no more ports on this ATA controller.
|
|
@retval EFI_INVALID_PARAMETER Port is not 0xFFFF and Port was not returned on a previous call
|
|
to GetNextPort().
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaPassThruGetNextPort (
|
|
IN EFI_ATA_PASS_THRU_PROTOCOL *This,
|
|
IN OUT UINT16 *Port
|
|
)
|
|
{
|
|
ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
|
|
LIST_ENTRY *Node;
|
|
EFI_ATA_DEVICE_INFO *DeviceInfo;
|
|
|
|
Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
|
|
|
|
if (Port == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if (*Port == 0xFFFF) {
|
|
//
|
|
// If the Port is all 0xFF's, start to traverse the device list from the beginning
|
|
//
|
|
Node = GetFirstNode (&Instance->DeviceList);
|
|
|
|
while (!IsNull (&Instance->DeviceList, Node)) {
|
|
DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
|
|
|
|
if (DeviceInfo->Type == EfiIdeHarddisk) {
|
|
*Port = DeviceInfo->Port;
|
|
goto Exit;
|
|
}
|
|
|
|
Node = GetNextNode (&Instance->DeviceList, Node);
|
|
}
|
|
|
|
return EFI_NOT_FOUND;
|
|
} else if (*Port == Instance->PreviousPort) {
|
|
Node = GetFirstNode (&Instance->DeviceList);
|
|
|
|
while (!IsNull (&Instance->DeviceList, Node)) {
|
|
DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
|
|
|
|
if ((DeviceInfo->Type == EfiIdeHarddisk) &&
|
|
(DeviceInfo->Port > *Port)){
|
|
*Port = DeviceInfo->Port;
|
|
goto Exit;
|
|
}
|
|
|
|
Node = GetNextNode (&Instance->DeviceList, Node);
|
|
}
|
|
|
|
return EFI_NOT_FOUND;
|
|
} else {
|
|
//
|
|
// Port is not equal to 0xFFFF and also not equal to previous return value
|
|
//
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
Exit:
|
|
//
|
|
// Update the PreviousPort and PreviousPortMultiplier.
|
|
//
|
|
Instance->PreviousPort = *Port;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Used to retrieve the list of legal port multiplier port numbers for ATA devices on a port of an ATA
|
|
controller. These can either be the list of port multiplier ports where ATA devices are actually
|
|
present on port or the list of legal port multiplier ports on that port. Regardless, the caller of this
|
|
function must probe the port number and port multiplier port number returned to see if an ATA
|
|
device is actually present.
|
|
|
|
The GetNextDevice() function retrieves the port multiplier port number of an ATA device
|
|
present on a port of an ATA controller.
|
|
|
|
If PortMultiplierPort points to a port multiplier port number value that was returned on a
|
|
previous call to GetNextDevice(), then the port multiplier port number of the next ATA device
|
|
on the port of the ATA controller is returned in PortMultiplierPort, and EFI_SUCCESS is
|
|
returned.
|
|
|
|
If PortMultiplierPort points to 0xFFFF, then the port multiplier port number of the first
|
|
ATA device on port of the ATA controller is returned in PortMultiplierPort and
|
|
EFI_SUCCESS is returned.
|
|
|
|
If PortMultiplierPort is not 0xFFFF and the value pointed to by PortMultiplierPort
|
|
was not returned on a previous call to GetNextDevice(), then EFI_INVALID_PARAMETER
|
|
is returned.
|
|
|
|
If PortMultiplierPort is the port multiplier port number of the last ATA device on the port of
|
|
the ATA controller, then EFI_NOT_FOUND is returned.
|
|
|
|
@param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
|
|
@param[in] Port The port number present on the ATA controller.
|
|
@param[in, out] PortMultiplierPort On input, a pointer to the port multiplier port number of an
|
|
ATA device present on the ATA controller.
|
|
If on input a PortMultiplierPort of 0xFFFF is specified,
|
|
then the port multiplier port number of the first ATA device
|
|
is returned. On output, a pointer to the port multiplier port
|
|
number of the next ATA device present on an ATA controller.
|
|
|
|
@retval EFI_SUCCESS The port multiplier port number of the next ATA device on the port
|
|
of the ATA controller was returned in PortMultiplierPort.
|
|
@retval EFI_NOT_FOUND There are no more ATA devices on this port of the ATA controller.
|
|
@retval EFI_INVALID_PARAMETER PortMultiplierPort is not 0xFFFF, and PortMultiplierPort was not
|
|
returned on a previous call to GetNextDevice().
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaPassThruGetNextDevice (
|
|
IN EFI_ATA_PASS_THRU_PROTOCOL *This,
|
|
IN UINT16 Port,
|
|
IN OUT UINT16 *PortMultiplierPort
|
|
)
|
|
{
|
|
ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
|
|
LIST_ENTRY *Node;
|
|
EFI_ATA_DEVICE_INFO *DeviceInfo;
|
|
|
|
Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
|
|
|
|
if (PortMultiplierPort == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if (*PortMultiplierPort == 0xFFFF) {
|
|
//
|
|
// If the PortMultiplierPort is all 0xFF's, start to traverse the device list from the beginning
|
|
//
|
|
Node = GetFirstNode (&Instance->DeviceList);
|
|
|
|
while (!IsNull (&Instance->DeviceList, Node)) {
|
|
DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
|
|
|
|
if ((DeviceInfo->Type == EfiIdeHarddisk) &&
|
|
(DeviceInfo->Port == Port)){
|
|
*PortMultiplierPort = DeviceInfo->PortMultiplier;
|
|
goto Exit;
|
|
}
|
|
|
|
Node = GetNextNode (&Instance->DeviceList, Node);
|
|
}
|
|
|
|
return EFI_NOT_FOUND;
|
|
} else if (*PortMultiplierPort == Instance->PreviousPortMultiplier) {
|
|
Node = GetFirstNode (&Instance->DeviceList);
|
|
|
|
while (!IsNull (&Instance->DeviceList, Node)) {
|
|
DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
|
|
|
|
if ((DeviceInfo->Type == EfiIdeHarddisk) &&
|
|
(DeviceInfo->Port == Port) &&
|
|
(DeviceInfo->PortMultiplier > *PortMultiplierPort)){
|
|
*PortMultiplierPort = DeviceInfo->PortMultiplier;
|
|
goto Exit;
|
|
}
|
|
|
|
Node = GetNextNode (&Instance->DeviceList, Node);
|
|
}
|
|
|
|
return EFI_NOT_FOUND;
|
|
} else {
|
|
//
|
|
// PortMultiplierPort is not equal to 0xFFFF and also not equal to previous return value
|
|
//
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
Exit:
|
|
//
|
|
// Update the PreviousPort and PreviousPortMultiplier.
|
|
//
|
|
Instance->PreviousPortMultiplier = *PortMultiplierPort;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Used to allocate and build a device path node for an ATA device on an ATA controller.
|
|
|
|
The BuildDevicePath() function allocates and builds a single device node for the ATA
|
|
device specified by Port and PortMultiplierPort. If the ATA device specified by Port and
|
|
PortMultiplierPort is not present on the ATA controller, then EFI_NOT_FOUND is returned.
|
|
If DevicePath is NULL, then EFI_INVALID_PARAMETER is returned. If there are not enough
|
|
resources to allocate the device path node, then EFI_OUT_OF_RESOURCES is returned.
|
|
|
|
Otherwise, DevicePath is allocated with the boot service AllocatePool(), the contents of
|
|
DevicePath are initialized to describe the ATA device specified by Port and PortMultiplierPort,
|
|
and EFI_SUCCESS is returned.
|
|
|
|
@param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
|
|
@param[in] Port Port specifies the port number of the ATA device for which a
|
|
device path node is to be allocated and built.
|
|
@param[in] PortMultiplierPort The port multiplier port number of the ATA device for which a
|
|
device path node is to be allocated and built. If there is no
|
|
port multiplier, then specify 0.
|
|
@param[in, out] DevicePath A pointer to a single device path node that describes the ATA
|
|
device specified by Port and PortMultiplierPort. 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.
|
|
@retval EFI_SUCCESS The device path node that describes the ATA device specified by
|
|
Port and PortMultiplierPort was allocated and returned in DevicePath.
|
|
@retval EFI_NOT_FOUND The ATA device specified by Port and PortMultiplierPort does not
|
|
exist on the ATA controller.
|
|
@retval EFI_INVALID_PARAMETER DevicePath is NULL.
|
|
@retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaPassThruBuildDevicePath (
|
|
IN EFI_ATA_PASS_THRU_PROTOCOL *This,
|
|
IN UINT16 Port,
|
|
IN UINT16 PortMultiplierPort,
|
|
IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
|
|
)
|
|
{
|
|
EFI_DEV_PATH *DevicePathNode;
|
|
ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
|
|
LIST_ENTRY *Node;
|
|
|
|
Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
|
|
|
|
//
|
|
// Validate parameters passed in.
|
|
//
|
|
if (DevicePath == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
Node = SearchDeviceInfoList(Instance, Port, PortMultiplierPort, EfiIdeHarddisk);
|
|
if (Node == NULL) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
if (Instance->Mode == EfiAtaIdeMode) {
|
|
DevicePathNode = AllocateCopyPool (sizeof (ATAPI_DEVICE_PATH), &mAtapiDevicePathTemplate);
|
|
if (DevicePathNode == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
DevicePathNode->Atapi.PrimarySecondary = (UINT8) Port;
|
|
DevicePathNode->Atapi.SlaveMaster = (UINT8) PortMultiplierPort;
|
|
DevicePathNode->Atapi.Lun = 0;
|
|
} else {
|
|
DevicePathNode = AllocateCopyPool (sizeof (SATA_DEVICE_PATH), &mSataDevicePathTemplate);
|
|
if (DevicePathNode == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
DevicePathNode->Sata.HBAPortNumber = Port;
|
|
DevicePathNode->Sata.PortMultiplierPortNumber = PortMultiplierPort;
|
|
DevicePathNode->Sata.Lun = 0;
|
|
}
|
|
|
|
*DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) DevicePathNode;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Used to translate a device path node to a port number and port multiplier port number.
|
|
|
|
The GetDevice() function determines the port and port multiplier port number associated with
|
|
the ATA device described by DevicePath. If DevicePath is a device path node type that the
|
|
ATA Pass Thru driver supports, then the ATA Pass Thru driver will attempt to translate the contents
|
|
DevicePath into a port number and port multiplier port number.
|
|
|
|
If this translation is successful, then that port number and port multiplier port number are returned
|
|
in Port and PortMultiplierPort, and EFI_SUCCESS is returned.
|
|
|
|
If DevicePath, Port, or PortMultiplierPort are NULL, then EFI_INVALID_PARAMETER is returned.
|
|
|
|
If DevicePath is not a device path node type that the ATA Pass Thru driver supports, then
|
|
EFI_UNSUPPORTED is returned.
|
|
|
|
If DevicePath is a device path node type that the ATA Pass Thru driver supports, but there is not
|
|
a valid translation from DevicePath to a port number and port multiplier port number, then
|
|
EFI_NOT_FOUND is returned.
|
|
|
|
@param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
|
|
@param[in] DevicePath A pointer to the device path node that describes an ATA device on the
|
|
ATA controller.
|
|
@param[out] Port On return, points to the port number of an ATA device on the ATA controller.
|
|
@param[out] PortMultiplierPort On return, points to the port multiplier port number of an ATA device
|
|
on the ATA controller.
|
|
|
|
@retval EFI_SUCCESS DevicePath was successfully translated to a port number and port multiplier
|
|
port number, and they were returned in Port and PortMultiplierPort.
|
|
@retval EFI_INVALID_PARAMETER DevicePath is NULL.
|
|
@retval EFI_INVALID_PARAMETER Port is NULL.
|
|
@retval EFI_INVALID_PARAMETER PortMultiplierPort is NULL.
|
|
@retval EFI_UNSUPPORTED This driver does not support the device path node type in DevicePath.
|
|
@retval EFI_NOT_FOUND A valid translation from DevicePath to a port number and port multiplier
|
|
port number does not exist.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaPassThruGetDevice (
|
|
IN EFI_ATA_PASS_THRU_PROTOCOL *This,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
|
|
OUT UINT16 *Port,
|
|
OUT UINT16 *PortMultiplierPort
|
|
)
|
|
{
|
|
EFI_DEV_PATH *DevicePathNode;
|
|
ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
|
|
LIST_ENTRY *Node;
|
|
|
|
Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
|
|
|
|
//
|
|
// Validate parameters passed in.
|
|
//
|
|
if (DevicePath == NULL || Port == NULL || PortMultiplierPort == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// Check whether the DevicePath belongs to SCSI_DEVICE_PATH or ATAPI_DEVICE_PATH
|
|
//
|
|
if ((DevicePath->Type != MESSAGING_DEVICE_PATH) ||
|
|
((DevicePath->SubType != MSG_SATA_DP) &&
|
|
(DevicePath->SubType != MSG_ATAPI_DP)) ||
|
|
((DevicePathNodeLength(DevicePath) != sizeof(ATAPI_DEVICE_PATH)) &&
|
|
(DevicePathNodeLength(DevicePath) != sizeof(SATA_DEVICE_PATH)))) {
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
DevicePathNode = (EFI_DEV_PATH *) DevicePath;
|
|
|
|
if (Instance->Mode == EfiAtaIdeMode) {
|
|
*Port = DevicePathNode->Atapi.PrimarySecondary;
|
|
*PortMultiplierPort = DevicePathNode->Atapi.SlaveMaster;
|
|
} else {
|
|
*Port = DevicePathNode->Sata.HBAPortNumber;
|
|
*PortMultiplierPort = DevicePathNode->Sata.PortMultiplierPortNumber;
|
|
}
|
|
|
|
Node = SearchDeviceInfoList(Instance, *Port, *PortMultiplierPort, EfiIdeHarddisk);
|
|
|
|
if (Node == NULL) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Resets a specific port on the ATA controller. This operation also resets all the ATA devices
|
|
connected to the port.
|
|
|
|
The ResetChannel() function resets an a specific port on an ATA controller. This operation
|
|
resets all the ATA devices connected to that port. If this ATA controller does not support
|
|
a reset port operation, then EFI_UNSUPPORTED is returned.
|
|
|
|
If a device error occurs while executing that port reset operation, then EFI_DEVICE_ERROR is
|
|
returned.
|
|
|
|
If a timeout occurs during the execution of the port reset operation, then EFI_TIMEOUT is returned.
|
|
|
|
If the port reset operation is completed, then EFI_SUCCESS is returned.
|
|
|
|
@param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
|
|
@param[in] Port The port number on the ATA controller.
|
|
|
|
@retval EFI_SUCCESS The ATA controller port was reset.
|
|
@retval EFI_UNSUPPORTED The ATA controller does not support a port reset operation.
|
|
@retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA port.
|
|
@retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA port.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaPassThruResetPort (
|
|
IN EFI_ATA_PASS_THRU_PROTOCOL *This,
|
|
IN UINT16 Port
|
|
)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
/**
|
|
Resets an ATA device that is connected to an ATA controller.
|
|
|
|
The ResetDevice() function resets the ATA device specified by Port and PortMultiplierPort.
|
|
If this ATA controller does not support a device reset operation, then EFI_UNSUPPORTED is
|
|
returned.
|
|
|
|
If Port or PortMultiplierPort are not in a valid range for this ATA controller, then
|
|
EFI_INVALID_PARAMETER is returned.
|
|
|
|
If a device error occurs while executing that device reset operation, then EFI_DEVICE_ERROR
|
|
is returned.
|
|
|
|
If a timeout occurs during the execution of the device reset operation, then EFI_TIMEOUT is
|
|
returned.
|
|
|
|
If the device reset operation is completed, then EFI_SUCCESS is returned.
|
|
|
|
@param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
|
|
@param[in] Port Port represents the port number of the ATA device to be reset.
|
|
@param[in] PortMultiplierPort The port multiplier port number of the ATA device to reset.
|
|
If there is no port multiplier, then specify 0.
|
|
@retval EFI_SUCCESS The ATA device specified by Port and PortMultiplierPort was reset.
|
|
@retval EFI_UNSUPPORTED The ATA controller does not support a device reset operation.
|
|
@retval EFI_INVALID_PARAMETER Port or PortMultiplierPort are invalid.
|
|
@retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA device
|
|
specified by Port and PortMultiplierPort.
|
|
@retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA device
|
|
specified by Port and PortMultiplierPort.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaPassThruResetDevice (
|
|
IN EFI_ATA_PASS_THRU_PROTOCOL *This,
|
|
IN UINT16 Port,
|
|
IN UINT16 PortMultiplierPort
|
|
)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
/**
|
|
Sends a SCSI Request Packet to a SCSI device that is attached to the SCSI channel. This function
|
|
supports both blocking I/O and nonblocking I/O. The blocking I/O functionality is required, and the
|
|
nonblocking I/O functionality is optional.
|
|
|
|
@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
|
|
@param Target The Target is an array of size TARGET_MAX_BYTES and it represents
|
|
the id of the SCSI device to send the SCSI Request Packet. Each
|
|
transport driver may choose to utilize a subset of this size to suit the needs
|
|
of transport target representation. For example, a Fibre Channel driver
|
|
may use only 8 bytes (WWN) to represent an FC target.
|
|
@param Lun The LUN of the SCSI device to send the SCSI Request Packet.
|
|
@param Packet A pointer to the SCSI Request Packet to send to the SCSI device
|
|
specified by Target and Lun.
|
|
@param Event If nonblocking 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
|
|
nonblocking I/O is performed, and Event will be signaled when the
|
|
SCSI Request Packet completes.
|
|
|
|
@retval EFI_SUCCESS The SCSI Request Packet was sent by the host. For bi-directional
|
|
commands, InTransferLength bytes were transferred from
|
|
InDataBuffer. For write and bi-directional commands,
|
|
OutTransferLength bytes were transferred by
|
|
OutDataBuffer.
|
|
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was not executed. The number of bytes that
|
|
could be transferred is returned in InTransferLength. For write
|
|
and bi-directional commands, OutTransferLength bytes were
|
|
transferred by OutDataBuffer.
|
|
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many
|
|
SCSI Request Packets already queued. The caller may retry again later.
|
|
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send the SCSI Request
|
|
Packet.
|
|
@retval EFI_INVALID_PARAMETER Target, Lun, or the contents of ScsiRequestPacket are invalid.
|
|
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported
|
|
by the host adapter. This includes the case of Bi-directional SCSI
|
|
commands not supported by the implementation. The SCSI Request
|
|
Packet was not sent, so no additional status information is available.
|
|
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ExtScsiPassThruPassThru (
|
|
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
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
|
|
UINT8 Port;
|
|
UINT8 PortMultiplier;
|
|
EFI_ATA_HC_WORK_MODE Mode;
|
|
LIST_ENTRY *Node;
|
|
EFI_ATA_DEVICE_INFO *DeviceInfo;
|
|
|
|
Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
|
|
|
|
if ((Packet == NULL) || (Packet->Cdb == NULL)) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// Don't support variable length CDB
|
|
//
|
|
if ((Packet->CdbLength != 6) && (Packet->CdbLength != 10) &&
|
|
(Packet->CdbLength != 12) && (Packet->CdbLength != 16)) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->InDataBuffer, This->Mode->IoAlign)) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->OutDataBuffer, This->Mode->IoAlign)) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->SenseData, This->Mode->IoAlign)) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// For ATAPI device, doesn't support multiple LUN device.
|
|
//
|
|
if (Lun != 0) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// The layout of Target array:
|
|
// ________________________________________________________________________
|
|
// | Byte 0 | Byte 1 | ... | TARGET_MAX_BYTES - 1 |
|
|
// |_____________________|_____________________|_____|______________________|
|
|
// | | The port multiplier | | |
|
|
// | The port number | port number | N/A | N/A |
|
|
// |_____________________|_____________________|_____|______________________|
|
|
//
|
|
// For ATAPI device, 2 bytes is enough to represent the location of SCSI device.
|
|
//
|
|
Port = Target[0];
|
|
PortMultiplier = Target[1];
|
|
|
|
Node = SearchDeviceInfoList(Instance, Port, PortMultiplier, EfiIdeCdrom);
|
|
if (Node == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
|
|
|
|
//
|
|
// ATA_CMD_IDENTIFY_DEVICE cmd is a ATA cmd but not a SCSI cmd.
|
|
// Normally it should NOT be passed down through ExtScsiPassThru protocol interface.
|
|
// But to response EFI_DISK_INFO.Identify() request from ScsiDisk, we should handle this command.
|
|
//
|
|
if (*((UINT8*)Packet->Cdb) == ATA_CMD_IDENTIFY_DEVICE) {
|
|
CopyMem (Packet->InDataBuffer, DeviceInfo->IdentifyData, sizeof (EFI_IDENTIFY_DATA));
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
Mode = Instance->Mode;
|
|
switch (Mode) {
|
|
case EfiAtaIdeMode:
|
|
//
|
|
// Reassign IDE mode io port registers' base addresses
|
|
//
|
|
Status = GetIdeRegisterIoAddr (Instance->PciIo, Instance->IdeRegisters);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
Status = AtaPacketCommandExecute (Instance->PciIo, &Instance->IdeRegisters[Port], Port, PortMultiplier, Packet);
|
|
break;
|
|
case EfiAtaAhciMode:
|
|
Status = AhciPacketCommandExecute (Instance->PciIo, &Instance->AhciRegisters, Port, PortMultiplier, Packet);
|
|
break;
|
|
default :
|
|
Status = EFI_DEVICE_ERROR;
|
|
break;
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
Used to retrieve the list of legal Target IDs and LUNs for SCSI devices on a SCSI channel. These
|
|
can either be the list SCSI devices that are actually present on the SCSI channel, or the list of legal
|
|
Target Ids and LUNs for the SCSI channel. Regardless, the caller of this function must probe the
|
|
Target ID and LUN returned to see if a SCSI device is actually present at that location on the SCSI
|
|
channel.
|
|
|
|
@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
|
|
@param Target On input, a pointer to the Target ID (an array of size
|
|
TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel.
|
|
On output, a pointer to the Target ID (an array of
|
|
TARGET_MAX_BYTES) of the next SCSI device present on a SCSI
|
|
channel. An input value of 0xF(all bytes in the array are 0xF) in the
|
|
Target array retrieves the Target ID of the first SCSI device present on a
|
|
SCSI channel.
|
|
@param 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.
|
|
|
|
@retval EFI_SUCCESS The Target ID and LUN of the next SCSI device on the SCSI
|
|
channel was returned in Target and Lun.
|
|
@retval EFI_INVALID_PARAMETER Target array is not all 0xF, and Target and Lun were
|
|
not returned on a previous call to GetNextTargetLun().
|
|
@retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ExtScsiPassThruGetNextTargetLun (
|
|
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
|
|
IN OUT UINT8 **Target,
|
|
IN OUT UINT64 *Lun
|
|
)
|
|
{
|
|
ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
|
|
LIST_ENTRY *Node;
|
|
EFI_ATA_DEVICE_INFO *DeviceInfo;
|
|
UINT8 *Target8;
|
|
UINT16 *Target16;
|
|
|
|
Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
|
|
|
|
if (Target == NULL || Lun == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if (*Target == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
Target8 = *Target;
|
|
Target16 = (UINT16 *)*Target;
|
|
|
|
if (CompareMem(Target8, mScsiId, TARGET_MAX_BYTES) != 0) {
|
|
//
|
|
// For ATAPI device, we use 2 least significant bytes to represent the location of SCSI device.
|
|
// So the higher bytes in Target array should be 0xFF.
|
|
//
|
|
if (CompareMem (&Target8[2], &mScsiId[2], TARGET_MAX_BYTES - 2) != 0) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// When Target is not all 0xFF's, compare 2 least significant bytes with
|
|
// previous target id to see if it is returned by previous call.
|
|
//
|
|
if ((*Target16 != Instance->PreviousTargetId) ||
|
|
(*Lun != Instance->PreviousLun)) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// Traverse the whole device list to find the next cdrom closed to
|
|
// the device signified by Target[0] and Target[1].
|
|
//
|
|
// Note that we here use a tricky way to find the next cdrom :
|
|
// All ata devices are detected and inserted into the device list
|
|
// sequentially.
|
|
//
|
|
Node = GetFirstNode (&Instance->DeviceList);
|
|
|
|
while (!IsNull (&Instance->DeviceList, Node)) {
|
|
DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
|
|
|
|
if ((DeviceInfo->Type == EfiIdeCdrom) &&
|
|
((Target8[0] < DeviceInfo->Port) ||
|
|
(Target8[1] < DeviceInfo->PortMultiplier))) {
|
|
Target8[0] = (UINT8)DeviceInfo->Port;
|
|
Target8[1] = (UINT8)DeviceInfo->PortMultiplier;
|
|
goto Exit;
|
|
}
|
|
|
|
Node = GetNextNode (&Instance->DeviceList, Node);
|
|
}
|
|
|
|
return EFI_NOT_FOUND;
|
|
} else {
|
|
//
|
|
// If the array is all 0xFF's, start to traverse the device list from the beginning
|
|
//
|
|
Node = GetFirstNode (&Instance->DeviceList);
|
|
while (!IsNull (&Instance->DeviceList, Node)) {
|
|
DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
|
|
|
|
if (DeviceInfo->Type == EfiIdeCdrom) {
|
|
Target8[0] = (UINT8)DeviceInfo->Port;
|
|
Target8[1] = (UINT8)DeviceInfo->PortMultiplier;
|
|
goto Exit;
|
|
}
|
|
|
|
Node = GetNextNode (&Instance->DeviceList, Node);
|
|
}
|
|
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
Exit:
|
|
*Lun = 0;
|
|
|
|
//
|
|
// Update the PreviousTargetId.
|
|
//
|
|
Instance->PreviousTargetId = *Target16;
|
|
Instance->PreviousLun = *Lun;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Used to allocate and build a device path node for a SCSI device on a SCSI channel.
|
|
|
|
@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
|
|
@param Target The Target is an array of size TARGET_MAX_BYTES and it specifies the
|
|
Target ID of the SCSI device for which a device path node is to be
|
|
allocated and built. Transport drivers may chose to utilize a subset of
|
|
this size to suit the representation of targets. For example, a Fibre
|
|
Channel driver may use only 8 bytes (WWN) in the array to represent a
|
|
FC target.
|
|
@param Lun The LUN of the SCSI device for which a device path node is to be
|
|
allocated and built.
|
|
@param 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.
|
|
|
|
@retval EFI_SUCCESS The device path node that describes the SCSI device specified by
|
|
Target and Lun was allocated and returned in
|
|
DevicePath.
|
|
@retval EFI_INVALID_PARAMETER DevicePath is NULL.
|
|
@retval EFI_NOT_FOUND The SCSI devices specified by Target and Lun does not exist
|
|
on the SCSI channel.
|
|
@retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ExtScsiPassThruBuildDevicePath (
|
|
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
|
|
IN UINT8 *Target,
|
|
IN UINT64 Lun,
|
|
IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
|
|
)
|
|
{
|
|
EFI_DEV_PATH *DevicePathNode;
|
|
ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
|
|
UINT8 Port;
|
|
UINT8 PortMultiplier;
|
|
|
|
Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
|
|
|
|
Port = Target[0];
|
|
PortMultiplier = Target[1];
|
|
|
|
//
|
|
// Validate parameters passed in.
|
|
//
|
|
if (DevicePath == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// can not build device path for the SCSI Host Controller.
|
|
//
|
|
if (Lun != 0) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
if (SearchDeviceInfoList(Instance, Port, PortMultiplier, EfiIdeCdrom) == NULL) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
if (Instance->Mode == EfiAtaIdeMode) {
|
|
DevicePathNode = AllocateCopyPool (sizeof (ATAPI_DEVICE_PATH), &mAtapiDevicePathTemplate);
|
|
if (DevicePathNode == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
DevicePathNode->Atapi.PrimarySecondary = Port;
|
|
DevicePathNode->Atapi.SlaveMaster = PortMultiplier;
|
|
DevicePathNode->Atapi.Lun = (UINT16) Lun;
|
|
} else {
|
|
DevicePathNode = AllocateCopyPool (sizeof (SATA_DEVICE_PATH), &mSataDevicePathTemplate);
|
|
if (DevicePathNode == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
DevicePathNode->Sata.HBAPortNumber = Port;
|
|
DevicePathNode->Sata.PortMultiplierPortNumber = PortMultiplier;
|
|
DevicePathNode->Sata.Lun = (UINT16) Lun;
|
|
}
|
|
|
|
*DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) DevicePathNode;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Used to translate a device path node to a Target ID and LUN.
|
|
|
|
@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
|
|
@param DevicePath A pointer to a single device path node that describes the SCSI device
|
|
on the SCSI channel.
|
|
@param Target A pointer to the Target Array which represents the ID of a SCSI device
|
|
on the SCSI channel.
|
|
@param Lun A pointer to the LUN of a SCSI device on the SCSI channel.
|
|
|
|
@retval EFI_SUCCESS DevicePath was successfully translated to a Target ID and
|
|
LUN, and they were returned in Target and Lun.
|
|
@retval EFI_INVALID_PARAMETER DevicePath or Target or Lun is NULL.
|
|
@retval EFI_NOT_FOUND A valid translation from DevicePath to a Target ID and LUN
|
|
does not exist.
|
|
@retval EFI_UNSUPPORTED This driver does not support the device path node type in
|
|
DevicePath.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ExtScsiPassThruGetTargetLun (
|
|
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
|
|
OUT UINT8 **Target,
|
|
OUT UINT64 *Lun
|
|
)
|
|
{
|
|
EFI_DEV_PATH *DevicePathNode;
|
|
ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
|
|
LIST_ENTRY *Node;
|
|
|
|
Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
|
|
|
|
//
|
|
// Validate parameters passed in.
|
|
//
|
|
if (DevicePath == NULL || Target == NULL || Lun == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if (*Target == 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) &&
|
|
(DevicePath->SubType != MSG_SATA_DP)) ||
|
|
((DevicePathNodeLength(DevicePath) != sizeof(ATAPI_DEVICE_PATH)) &&
|
|
(DevicePathNodeLength(DevicePath) != sizeof(SATA_DEVICE_PATH)))) {
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
SetMem (*Target, TARGET_MAX_BYTES, 0xFF);
|
|
|
|
DevicePathNode = (EFI_DEV_PATH *) DevicePath;
|
|
|
|
if (Instance->Mode == EfiAtaIdeMode) {
|
|
(*Target)[0] = (UINT8) DevicePathNode->Atapi.PrimarySecondary;
|
|
(*Target)[1] = (UINT8) DevicePathNode->Atapi.SlaveMaster;
|
|
*Lun = (UINT8) DevicePathNode->Atapi.Lun;
|
|
} else {
|
|
(*Target)[0] = (UINT8) DevicePathNode->Sata.HBAPortNumber;
|
|
(*Target)[1] = (UINT8) DevicePathNode->Sata.PortMultiplierPortNumber;
|
|
*Lun = (UINT8) DevicePathNode->Sata.Lun;
|
|
}
|
|
|
|
Node = SearchDeviceInfoList(Instance, (*Target)[0], (*Target)[1], EfiIdeCdrom);
|
|
|
|
if (Node == NULL) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
if (*Lun != 0) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Resets a SCSI channel. This operation resets all the SCSI devices connected to the SCSI channel.
|
|
|
|
@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
|
|
|
|
@retval EFI_SUCCESS The SCSI channel was reset.
|
|
@retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI channel.
|
|
@retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI channel.
|
|
@retval EFI_UNSUPPORTED The SCSI channel does not support a channel reset operation.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ExtScsiPassThruResetChannel (
|
|
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This
|
|
)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
/**
|
|
Resets a SCSI logical unit that is connected to a SCSI channel.
|
|
|
|
@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
|
|
@param Target The Target is an array of size TARGET_MAX_BYTE and it represents the
|
|
target port ID of the SCSI device containing the SCSI logical unit to
|
|
reset. Transport drivers may chose to utilize a subset of this array to suit
|
|
the representation of their targets.
|
|
@param Lun The LUN of the SCSI device to reset.
|
|
|
|
@retval EFI_SUCCESS The SCSI device specified by Target and Lun was reset.
|
|
@retval EFI_INVALID_PARAMETER Target or Lun is NULL.
|
|
@retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI device
|
|
specified by Target and Lun.
|
|
@retval EFI_UNSUPPORTED The SCSI channel does not support a target reset operation.
|
|
@retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI device
|
|
specified by Target and Lun.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ExtScsiPassThruResetTargetLun (
|
|
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
|
|
IN UINT8 *Target,
|
|
IN UINT64 Lun
|
|
)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
/**
|
|
Used to retrieve the list of legal Target IDs for SCSI devices on a SCSI channel. These can either
|
|
be the list SCSI devices that are actually present on the SCSI channel, or the list of legal Target IDs
|
|
for the SCSI channel. Regardless, the caller of this function must probe the Target ID returned to
|
|
see if a SCSI device is actually present at that location on the SCSI channel.
|
|
|
|
@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
|
|
@param Target (TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel.
|
|
On output, a pointer to the Target ID (an array of
|
|
TARGET_MAX_BYTES) of the next SCSI device present on a SCSI
|
|
channel. An input value of 0xF(all bytes in the array are 0xF) in the
|
|
Target array retrieves the Target ID of the first SCSI device present on a
|
|
SCSI channel.
|
|
|
|
@retval EFI_SUCCESS The Target ID of the next SCSI device on the SCSI
|
|
channel was returned in Target.
|
|
@retval EFI_INVALID_PARAMETER Target or Lun is NULL.
|
|
@retval EFI_TIMEOUT Target array is not all 0xF, and Target was not
|
|
returned on a previous call to GetNextTarget().
|
|
@retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ExtScsiPassThruGetNextTarget (
|
|
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
|
|
IN OUT UINT8 **Target
|
|
)
|
|
{
|
|
ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
|
|
LIST_ENTRY *Node;
|
|
EFI_ATA_DEVICE_INFO *DeviceInfo;
|
|
UINT8 *Target8;
|
|
UINT16 *Target16;
|
|
|
|
Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
|
|
|
|
if (Target == NULL || *Target == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
Target8 = *Target;
|
|
Target16 = (UINT16 *)*Target;
|
|
|
|
if (CompareMem(Target8, mScsiId, TARGET_MAX_BYTES) != 0) {
|
|
//
|
|
// For ATAPI device, we use 2 least significant bytes to represent the location of SCSI device.
|
|
// So the higher bytes in Target array should be 0xFF.
|
|
//
|
|
if (CompareMem (&Target8[2], &mScsiId[2], TARGET_MAX_BYTES - 2) != 0) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// When Target is not all 0xFF's, compare 2 least significant bytes with
|
|
// previous target id to see if it is returned by previous call.
|
|
//
|
|
if (*Target16 != Instance->PreviousTargetId) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// Traverse the whole device list to find the next cdrom closed to
|
|
// the device signified by Target[0] and Target[1].
|
|
//
|
|
// Note that we here use a tricky way to find the next cdrom :
|
|
// All ata devices are detected and inserted into the device list
|
|
// sequentially.
|
|
//
|
|
Node = GetFirstNode (&Instance->DeviceList);
|
|
while (!IsNull (&Instance->DeviceList, Node)) {
|
|
DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
|
|
|
|
if ((DeviceInfo->Type == EfiIdeCdrom) &&
|
|
((Target8[0] < DeviceInfo->Port) ||
|
|
(Target8[1] < DeviceInfo->PortMultiplier))) {
|
|
Target8[0] = (UINT8)DeviceInfo->Port;
|
|
Target8[1] = (UINT8)DeviceInfo->PortMultiplier;
|
|
goto Exit;
|
|
}
|
|
|
|
Node = GetNextNode (&Instance->DeviceList, Node);
|
|
}
|
|
|
|
return EFI_NOT_FOUND;
|
|
} else {
|
|
//
|
|
// If the array is all 0xFF's, start to traverse the device list from the beginning
|
|
//
|
|
Node = GetFirstNode (&Instance->DeviceList);
|
|
|
|
while (!IsNull (&Instance->DeviceList, Node)) {
|
|
DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
|
|
|
|
if (DeviceInfo->Type == EfiIdeCdrom) {
|
|
Target8[0] = (UINT8)DeviceInfo->Port;
|
|
Target8[1] = (UINT8)DeviceInfo->PortMultiplier;
|
|
goto Exit;
|
|
}
|
|
|
|
Node = GetNextNode (&Instance->DeviceList, Node);
|
|
}
|
|
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
Exit:
|
|
//
|
|
// Update the PreviousTargetId.
|
|
//
|
|
Instance->PreviousTargetId = *Target16;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|