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/* $Id: Ide.h 33540 2010-10-28 09:27:05Z vboxsync $ */
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* Copyright (C) 2009-2010 Oracle Corporation
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* This file is part of VirtualBox Open Source Edition (OSE), as
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* available from http://www.virtualbox.org. This file is free software;
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* you can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) as published by the Free Software
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* Foundation, in version 2 as it comes in the "COPYING" file of the
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* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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Header file for IDE Bus Driver, containing the helper functions'
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Copyright (c) 2006 - 2007 Intel Corporation. <BR>
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All rights reserved. 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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@par Revision Reference:
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2002-6: Add Atapi6 enhancement, support >120GB hard disk, including
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Add - IDEBlkIoReadBlocksExt() func definition
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Add - IDEBlkIoWriteBlocksExt() func definition
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// Helper functions Prototype
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read a one-byte data from a IDE port.
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@param PciIo The PCI IO protocol instance
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@param Port the IDE Port number
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return the one-byte data read from IDE port
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IN EFI_PCI_IO_PROTOCOL *PciIo,
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Reads multiple words of data from the IDE data port.
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Call the IO abstraction once to do the complete read,
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not one word at a time.
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@param PciIo Pointer to the EFI_PCI_IO instance
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@param Port IO port to read
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@param Count No. of UINT16's to read
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@param Buffer Pointer to the data buffer for read
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IDEReadPortWMultiple (
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IN EFI_PCI_IO_PROTOCOL *PciIo,
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write a 1-byte data to a specific IDE port.
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@param PciIo PCI IO protocol instance
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@param Port The IDE port to be writen
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@param Data The data to write to the port
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IN EFI_PCI_IO_PROTOCOL *PciIo,
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write a 1-word data to a specific IDE port.
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@param PciIo PCI IO protocol instance
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@param Port The IDE port to be writen
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@param Data The data to write to the port
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IN EFI_PCI_IO_PROTOCOL *PciIo,
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Write multiple words of data to the IDE data port.
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Call the IO abstraction once to do the complete read,
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not one word at a time.
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@param PciIo Pointer to the EFI_PCI_IO instance
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@param Port IO port to read
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@param Count No. of UINT16's to read
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@param Buffer Pointer to the data buffer for read
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IDEWritePortWMultiple (
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IN EFI_PCI_IO_PROTOCOL *PciIo,
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Get IDE IO port registers' base addresses by mode. In 'Compatibility' mode,
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use fixed addresses. In Native-PCI mode, get base addresses from BARs in
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the PCI IDE controller's Configuration Space.
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The steps to get IDE IO port registers' base addresses for each channel
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1. Examine the Programming Interface byte of the Class Code fields in PCI IDE
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controller's Configuration Space to determine the operating mode.
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2. a) In 'Compatibility' mode, use fixed addresses shown in the Table 1 below.
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___________________________________________
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| | Command Block | Control Block |
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| Channel | Registers | Registers |
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|___________|_______________|_______________|
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| Primary | 1F0h - 1F7h | 3F6h - 3F7h |
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|___________|_______________|_______________|
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| Secondary | 170h - 177h | 376h - 377h |
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|___________|_______________|_______________|
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Table 1. Compatibility resource mappings
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b) In Native-PCI mode, IDE registers are mapped into IO space using the BARs
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in IDE controller's PCI Configuration Space, shown in the Table 2 below.
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___________________________________________________
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| | Command Block | Control Block |
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| Channel | Registers | Registers |
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|___________|___________________|___________________|
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| Primary | BAR at offset 0x10| BAR at offset 0x14|
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|___________|___________________|___________________|
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| Secondary | BAR at offset 0x18| BAR at offset 0x1C|
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|___________|___________________|___________________|
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Table 2. BARs for Register Mapping
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@note Refer to Intel ICH4 datasheet, Control Block Offset: 03F4h for
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primary, 0374h for secondary. So 2 bytes extra offset should be
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added to the base addresses read from BARs.
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For more details, please refer to PCI IDE Controller Specification and Intel
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@param PciIo Pointer to the EFI_PCI_IO_PROTOCOL instance
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@param IdeRegsBaseAddr Pointer to IDE_REGISTERS_BASE_ADDR to
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receive IDE IO port registers' base addresses
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@retval EFI_UNSUPPORTED return this value when the BARs is not IO type
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@retval EFI_SUCCESS Get the Base address successfully
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@retval other read the pci configuration data error
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GetIdeRegistersBaseAddr (
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IN EFI_PCI_IO_PROTOCOL *PciIo,
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OUT IDE_REGISTERS_BASE_ADDR *IdeRegsBaseAddr
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This function is used to requery IDE resources. The IDE controller will
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probably switch between native and legacy modes during the EFI->CSM->OS
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transfer. We do this everytime before an BlkIo operation to ensure its
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@param IdeDev The BLK_IO private data which specifies the IDE device
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@retval EFI_INVALID_PARAMETER return this value when the channel is invalid
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@retval EFI_SUCCESS reassign the IDE IO resource successfully
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@retval other get the IDE current base address effor
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ReassignIdeResources (
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IN IDE_BLK_IO_DEV *IdeDev
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Detect if there is disk attached to this port.
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@param IdeDev The BLK_IO private data which specifies the IDE device.
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@retval EFI_NOT_FOUND The device or channel is not found
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@retval EFI_SUCCESS The device is found
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IN IDE_BLK_IO_DEV *IdeDev
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This interface is used to initialize all state data related to the
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detection of one channel.
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InitializeIDEChannelData (
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This function is used to poll for the DRQ bit clear in the Status
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Register. DRQ is cleared when the device is finished transferring data.
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So this function is called after data transfer is finished.
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used
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to record all the information of the IDE device.
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@param TimeoutInMilliSeconds used to designate the timeout for the DRQ clear.
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@retval EFI_SUCCESS DRQ bit clear within the time out.
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@retval EFI_TIMEOUT DRQ bit not clear within the time out.
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Read Status Register will clear interrupt status.
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IN IDE_BLK_IO_DEV *IdeDev,
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IN UINTN TimeoutInMilliSeconds
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This function is used to poll for the DRQ bit clear in the Alternate
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Status Register. DRQ is cleared when the device is finished
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transferring data. So this function is called after data transfer
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used
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to record all the information of the IDE device.
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@param TimeoutInMilliSeconds used to designate the timeout for the DRQ clear.
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@retval EFI_SUCCESS DRQ bit clear within the time out.
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@retval EFI_TIMEOUT DRQ bit not clear within the time out.
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Read Alternate Status Register will not clear interrupt status.
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IN IDE_BLK_IO_DEV *IdeDev,
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IN UINTN TimeoutInMilliSeconds
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This function is used to poll for the DRQ bit set in the
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DRQ is set when the device is ready to transfer data. So this function
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is called after the command is sent to the device and before required
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure,used to
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record all the information of the IDE device.
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@param TimeoutInMilliSeconds used to designate the timeout for the DRQ ready.
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@retval EFI_SUCCESS DRQ bit set within the time out.
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@retval EFI_TIMEOUT DRQ bit not set within the time out.
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@retval EFI_ABORTED DRQ bit not set caused by the command abort.
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@note Read Status Register will clear interrupt status.
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IN IDE_BLK_IO_DEV *IdeDev,
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IN UINTN TimeoutInMilliSeconds
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This function is used to poll for the DRQ bit set in the Alternate Status Register.
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DRQ is set when the device is ready to transfer data. So this function is called after
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the command is sent to the device and before required data is transferred.
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used to
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record all the information of the IDE device.
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@param TimeoutInMilliSeconds used to designate the timeout for the DRQ ready.
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@retval EFI_SUCCESS DRQ bit set within the time out.
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@retval EFI_TIMEOUT DRQ bit not set within the time out.
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@retval EFI_ABORTED DRQ bit not set caused by the command abort.
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@note Read Alternate Status Register will not clear interrupt status.
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IN IDE_BLK_IO_DEV *IdeDev,
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IN UINTN TimeoutInMilliSeconds
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This function is used to poll for the BSY bit clear in the Status Register. BSY
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is clear when the device is not busy. Every command must be sent after device is not busy.
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used
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to record all the information of the IDE device.
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@param TimeoutInMilliSeconds used to designate the timeout for the DRQ ready.
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@retval EFI_SUCCESS BSY bit clear within the time out.
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@retval EFI_TIMEOUT BSY bit not clear within the time out.
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@note Read Status Register will clear interrupt status.
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IN IDE_BLK_IO_DEV *IdeDev,
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IN UINTN TimeoutInMilliSeconds
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This function is used to poll for the BSY bit clear in the Alternate Status Register.
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BSY is clear when the device is not busy. Every command must be sent after device is
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used to record
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all the information of the IDE device.
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@param TimeoutInMilliSeconds used to designate the timeout for the DRQ ready.
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@retval EFI_SUCCESS BSY bit clear within the time out.
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@retval EFI_TIMEOUT BSY bit not clear within the time out.
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@note Read Alternate Status Register will not clear interrupt status.
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IN IDE_BLK_IO_DEV *IdeDev,
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IN UINTN TimeoutInMilliSeconds
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This function is used to poll for the DRDY bit set in the Status Register. DRDY
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bit is set when the device is ready to accept command. Most ATA commands must be
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sent after DRDY set except the ATAPI Packet Command.
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used
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to record all the information of the IDE device.
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@param DelayInMilliSeconds used to designate the timeout for the DRQ ready.
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@retval EFI_SUCCESS DRDY bit set within the time out.
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@retval EFI_TIMEOUT DRDY bit not set within the time out.
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@note Read Status Register will clear interrupt status.
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IN IDE_BLK_IO_DEV *IdeDev,
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IN UINTN DelayInMilliSeconds
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This function is used to poll for the DRDY bit set in the Alternate Status Register.
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DRDY bit is set when the device is ready to accept command. Most ATA commands must
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be sent after DRDY set except the ATAPI Packet Command.
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used
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to record all the information of the IDE device.
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@param DelayInMilliSeconds used to designate the timeout for the DRQ ready.
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@retval EFI_SUCCESS DRDY bit set within the time out.
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@retval EFI_TIMEOUT DRDY bit not set within the time out.
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@note Read Alternate Status Register will clear interrupt status.
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IN IDE_BLK_IO_DEV *IdeDev,
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IN UINTN DelayInMilliSeconds
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// ATA device functions' prototype
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Sends out an ATA Identify Command to the specified device.
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This function is called by DiscoverIdeDevice() during its device
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identification. It sends out the ATA Identify Command to the
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specified device. Only ATA device responses to this command. If
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the command succeeds, it returns the Identify data structure which
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contains information about the device. This function extracts the
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information it needs to fill the IDE_BLK_IO_DEV data structure,
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including device type, media block size, media capacity, and etc.
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure,used to record
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all the information of the IDE device.
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@retval EFI_SUCCESS Identify ATA device successfully.
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@retval EFI_DEVICE_ERROR ATA Identify Device Command failed or device is not ATA device.
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@note parameter IdeDev will be updated in this function.
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IN IDE_BLK_IO_DEV *IdeDev
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This function is called by ATAIdentify() or ATAPIIdentify() to print device's module name.
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used to record
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all the information of the IDE device.
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IN IDE_BLK_IO_DEV *IdeDev
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This function is used to send out ATA commands conforms to the PIO Data In Protocol.
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used to record
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all the information of the IDE device.
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@param Buffer buffer contained data transferred from device to host.
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@param ByteCount data size in byte unit of the buffer.
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@param AtaCommand value of the Command Register
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@param Head value of the Head/Device Register
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@param SectorCount value of the Sector Count Register
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@param SectorNumber value of the Sector Number Register
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@param CylinderLsb value of the low byte of the Cylinder Register
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@param CylinderMsb value of the high byte of the Cylinder Register
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@retval EFI_SUCCESS send out the ATA command and device send required data successfully.
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@retval EFI_DEVICE_ERROR command sent failed.
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IN IDE_BLK_IO_DEV *IdeDev,
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IN UINT8 SectorCount,
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IN UINT8 SectorNumber,
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IN UINT8 CylinderLsb,
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This function is used to send out ATA commands conforms to the
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PIO Data Out Protocol.
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used
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to record all the information of the IDE device.
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@param *Buffer buffer contained data transferred from host to device.
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@param ByteCount data size in byte unit of the buffer.
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@param AtaCommand value of the Command Register
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@param Head value of the Head/Device Register
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@param SectorCount value of the Sector Count Register
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@param SectorNumber value of the Sector Number Register
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@param CylinderLsb value of the low byte of the Cylinder Register
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@param CylinderMsb value of the high byte of the Cylinder Register
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@retval EFI_SUCCESS send out the ATA command and device received required
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@retval EFI_DEVICE_ERROR command sent failed.
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IN IDE_BLK_IO_DEV *IdeDev,
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IN UINT8 SectorCount,
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IN UINT8 SectorNumber,
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IN UINT8 CylinderLsb,
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This function is used to analyze the Status Register and print out
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some debug information and if there is ERR bit set in the Status
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Register, the Error Register's value is also be parsed and print out.
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used to
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record all the information of the IDE device.
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@retval EFI_SUCCESS No err information in the Status Register.
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@retval EFI_DEVICE_ERROR Any err information in the Status Register.
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IN IDE_BLK_IO_DEV *IdeDev
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This function is used to implement the Soft Reset on the specified device. But,
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the ATA Soft Reset mechanism is so strong a reset method that it will force
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resetting on both devices connected to the same cable.
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It is called by IdeBlkIoReset(), a interface function of Block
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This function can also be used by the ATAPI device to perform reset when
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ATAPI Reset command is failed.
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used to record
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all the information of the IDE device.
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@retval EFI_SUCCESS Soft reset completes successfully.
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@retval EFI_DEVICE_ERROR Any step during the reset process is failed.
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@note The registers initial values after ATA soft reset are different
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to the ATA device and ATAPI device.
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IN IDE_BLK_IO_DEV *IdeDev
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This function is the ATA implementation for ReadBlocks in the
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Block I/O Protocol interface.
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@param IdeBlkIoDevice Indicates the calling context.
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@param MediaId The media id that the read request is for.
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@param Lba The starting logical block address to read from on the device.
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@param BufferSize The size of the Buffer in bytes. This must be a multiple
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of the intrinsic block size of the device.
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@param Buffer A pointer to the destination buffer for the data. The caller
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is responsible for either having implicit or explicit ownership
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of the memory that data is read into.
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@retval EFI_SUCCESS Read Blocks successfully.
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@retval EFI_DEVICE_ERROR Read Blocks failed.
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@retval EFI_NO_MEDIA There is no media in the device.
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@retval EFI_MEDIA_CHANGE The MediaId is not for the current media.
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@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the
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intrinsic block size of the device.
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@retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
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or the data buffer is not valid.
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@note If Read Block error because of device error, this function will call
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AtaSoftReset() function to reset device.
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IN IDE_BLK_IO_DEV *IdeBlkIoDevice,
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This function is the ATA implementation for WriteBlocks in the
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Block I/O Protocol interface.
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@param IdeBlkIoDevice Indicates the calling context.
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@param MediaId The media id that the write request is for.
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@param Lba The starting logical block address to write onto the device.
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@param BufferSize The size of the Buffer in bytes. This must be a multiple
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of the intrinsic block size of the device.
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@param Buffer A pointer to the source buffer for the data.The caller
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is responsible for either having implicit or explicit
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ownership of the memory that data is written from.
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@retval EFI_SUCCESS Write Blocks successfully.
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@retval EFI_DEVICE_ERROR Write Blocks failed.
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@retval EFI_NO_MEDIA There is no media in the device.
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@retval EFI_MEDIA_CHANGE The MediaId is not for the current media.
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@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the
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intrinsic block size of the device.
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@retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
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or the data buffer is not valid.
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@note If Write Block error because of device error, this function will call
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AtaSoftReset() function to reset device.
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AtaBlkIoWriteBlocks (
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IN IDE_BLK_IO_DEV *IdeBlkIoDevice,
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This function is called by DiscoverIdeDevice() during its device
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Its main purpose is to get enough information for the device media
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to fill in the Media data structure of the Block I/O Protocol interface.
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There are 5 steps to reach such objective:
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1. Sends out the ATAPI Identify Command to the specified device.
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Only ATAPI device responses to this command. If the command succeeds,
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it returns the Identify data structure which filled with information
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about the device. Since the ATAPI device contains removable media,
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the only meaningful information is the device module name.
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2. Sends out ATAPI Inquiry Packet Command to the specified device.
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This command will return inquiry data of the device, which contains
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the device type information.
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3. Allocate sense data space for future use. We don't detect the media
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presence here to improvement boot performance, especially when CD
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media is present. The media detection will be performed just before
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each BLK_IO read/write
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used
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to record all the information of the IDE device.
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@retval EFI_SUCCESS Identify ATAPI device successfully.
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@retval EFI_DEVICE_ERROR ATAPI Identify Device Command failed or device type
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is not supported by this IDE driver.
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@retval EFI_OUT_OF_RESOURCES Allocate memory for sense data failed
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@note Parameter "IdeDev" will be updated in this function.
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IN IDE_BLK_IO_DEV *IdeDev
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This function is used to implement the Soft Reset on the specified
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ATAPI device. Different from the AtaSoftReset(), here reset is a ATA
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Soft Reset Command special for ATAPI device, and it only take effects
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on the specified ATAPI device, not on the whole IDE bus.
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Since the ATAPI soft reset is needed when device is in exceptional
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condition (such as BSY bit is always set ), I think the Soft Reset
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command should be sent without waiting for the BSY clear and DRDY
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This function is called by IdeBlkIoReset(),
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a interface function of Block I/O protocol.
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@param IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used
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to record all the information of the IDE device.
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@retval EFI_SUCCESS Soft reset completes successfully.
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@retval EFI_DEVICE_ERROR Any step during the reset process is failed.
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IN IDE_BLK_IO_DEV *IdeDev
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This function is the ATAPI implementation for ReadBlocks in the
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Block I/O Protocol interface.
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@param IdeBlkIoDevice Indicates the calling context.
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@param MediaId The media id that the read request is for.
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@param Lba The starting logical block address to read from on the device.
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@param BufferSize The size of the Buffer in bytes. This must be a multiple
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of the intrinsic block size of the device.
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@param Buffer A pointer to the destination buffer for the data. The caller
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is responsible for either having implicit or explicit
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ownership of the memory that data is read into.
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@retval EFI_SUCCESS Read Blocks successfully.
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@retval EFI_DEVICE_ERROR Read Blocks failed.
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@retval EFI_NO_MEDIA There is no media in the device.
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@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
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@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the
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intrinsic block size of the device.
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@retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
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or the data buffer is not valid.
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AtapiBlkIoReadBlocks (
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IN IDE_BLK_IO_DEV *IdeBlkIoDevice,
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This function is the ATAPI implementation for WriteBlocks in the
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Block I/O Protocol interface.
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@param IdeBlkIoDevice Indicates the calling context.
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@param MediaId The media id that the write request is for.
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@param Lba The starting logical block address to write onto the device.
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@param BufferSize The size of the Buffer in bytes. This must be a multiple
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of the intrinsic block size of the device.
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@param Buffer A pointer to the source buffer for the data. The caller
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is responsible for either having implicit or explicit ownership
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of the memory that data is written from.
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@retval EFI_SUCCESS Write Blocks successfully.
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@retval EFI_DEVICE_ERROR Write Blocks failed.
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@retval EFI_NO_MEDIA There is no media in the device.
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@retval EFI_MEDIA_CHANGE The MediaId is not for the current media.
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@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the
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intrinsic block size of the device.
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@retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
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or the data buffer is not valid.
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@retval EFI_WRITE_PROTECTED The write protected is enabled or the media does not support write
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AtapiBlkIoWriteBlocks (
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IN IDE_BLK_IO_DEV *IdeBlkIoDevice,
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Release resources of an IDE device before stopping it.
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@param IdeBlkIoDevice Standard IDE device private data structure
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ReleaseIdeResources (
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IN IDE_BLK_IO_DEV *IdeBlkIoDevice
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Set the calculated Best transfer mode to a detected device
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@param IdeDev Standard IDE device private data structure
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@param TransferMode The device transfer mode to be set
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@return Set transfer mode Command execute status.
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SetDeviceTransferMode (
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IN IDE_BLK_IO_DEV *IdeDev,
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IN ATA_TRANSFER_MODE *TransferMode
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Send ATA command into device with NON_DATA protocol.
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@param IdeDev Standard IDE device private data structure
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@param AtaCommand The ATA command to be sent
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@param Device The value in Device register
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@param Feature The value in Feature register
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@param SectorCount The value in SectorCount register
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@param LbaLow The value in LBA_LOW register
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@param LbaMiddle The value in LBA_MIDDLE register
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@param LbaHigh The value in LBA_HIGH register
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@retval EFI_SUCCESS Reading succeed
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@retval EFI_ABORTED Command failed
773
@retval EFI_DEVICE_ERROR Device status error.
777
AtaNonDataCommandIn (
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IN IDE_BLK_IO_DEV *IdeDev,
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IN UINT8 SectorCount,
789
Send ATA Ext command into device with NON_DATA protocol.
791
@param IdeDev Standard IDE device private data structure
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@param AtaCommand The ATA command to be sent
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@param Device The value in Device register
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@param Feature The value in Feature register
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@param SectorCount The value in SectorCount register
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@param LbaAddress The Lba address in 48-bit mode
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@retval EFI_SUCCESS Reading succeed
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@retval EFI_ABORTED Command failed
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@retval EFI_DEVICE_ERROR Device status error.
804
AtaNonDataCommandInExt (
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IN IDE_BLK_IO_DEV *IdeDev,
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IN UINT16 SectorCount,
810
IN EFI_LBA LbaAddress
813
Enable Long Physical Sector Feature for ATA device.
815
@param IdeDev The IDE device data
817
@retval EFI_SUCCESS The ATA device supports Long Physical Sector feature
818
and corresponding fields in BlockIo structure is updated.
819
@retval EFI_UNSUPPORTED The device is not ATA device or Long Physical Sector
820
feature is not supported.
823
AtaEnableLongPhysicalSector (
824
IN IDE_BLK_IO_DEV *IdeDev
828
Set drive parameters for devices not support PACKETS command.
830
@param IdeDev Standard IDE device private data structure
831
@param DriveParameters The device parameters to be set into the disk
832
@return SetParameters Command execute status.
837
IN IDE_BLK_IO_DEV *IdeDev,
838
IN ATA_DRIVE_PARMS *DriveParameters
842
Enable Interrupt on IDE controller.
844
@param IdeDev Standard IDE device private data structure
846
@retval EFI_SUCCESS Enable Interrupt successfully
850
IN IDE_BLK_IO_DEV *IdeDev
added
removed
src/VBox/Devices/EFI/Firmware2/VBoxPkg/VBoxIdeBusDxe/Ide.h
