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647 lines
27 KiB
C
647 lines
27 KiB
C
/** @file
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Master header file for ATA Bus Driver.
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This file defines common data structures, macro definitions and some module
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internal function header files.
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Copyright (c) 2009 - 2010 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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**/
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#ifndef _ATA_BUS_H_
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#define _ATA_BUS_H_
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#include <PiDxe.h>
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#include <Protocol/AtaPassThru.h>
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#include <Protocol/BlockIo.h>
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#include <Protocol/DiskInfo.h>
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#include <Protocol/DevicePath.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/BaseLib.h>
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#include <Library/UefiLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/DevicePathLib.h>
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#include <IndustryStandard/Atapi.h>
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//
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// Time out value for ATA pass through protocol
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//
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#define ATA_TIMEOUT EFI_TIMER_PERIOD_SECONDS (1)
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//
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// Maximum number of times to retry ATA command
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//
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#define MAX_RETRY_TIMES 3
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//
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// The maximum total sectors count in 28 bit addressing mode
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//
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#define MAX_28BIT_ADDRESSING_CAPACITY 0xfffffff
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//
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// The maximum ATA transaction sector count in 28 bit addressing mode.
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//
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#define MAX_28BIT_TRANSFER_BLOCK_NUM 0x100
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//
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// The maximum ATA transaction sector count in 48 bit addressing mode.
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//
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#define MAX_48BIT_TRANSFER_BLOCK_NUM 0x10000
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//
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// The maximum model name in ATA identify data
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//
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#define MAX_MODEL_NAME_LEN 40
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//
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// ATA bus data structure for ATA controller
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//
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typedef struct {
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EFI_ATA_PASS_THRU_PROTOCOL *AtaPassThru;
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EFI_HANDLE Controller;
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EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
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EFI_HANDLE DriverBindingHandle;
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} ATA_BUS_DRIVER_DATA;
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#define ATA_DEVICE_SIGNATURE SIGNATURE_32 ('A', 'B', 'I', 'D')
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//
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// ATA device data structure for each child device
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//
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typedef struct {
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UINT32 Signature;
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EFI_HANDLE Handle;
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EFI_BLOCK_IO_PROTOCOL BlockIo;
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EFI_BLOCK_IO_MEDIA BlockMedia;
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EFI_DISK_INFO_PROTOCOL DiskInfo;
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EFI_DEVICE_PATH_PROTOCOL *DevicePath;
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ATA_BUS_DRIVER_DATA *AtaBusDriverData;
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UINT16 Port;
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UINT16 PortMultiplierPort;
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//
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// Buffer for the execution of ATA pass through protocol
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//
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EFI_ATA_PASS_THRU_COMMAND_PACKET Packet;
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EFI_ATA_COMMAND_BLOCK Acb;
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EFI_ATA_STATUS_BLOCK *Asb;
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BOOLEAN UdmaValid;
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BOOLEAN Lba48Bit;
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//
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// Cached data for ATA identify data
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//
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ATA_IDENTIFY_DATA *IdentifyData;
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EFI_UNICODE_STRING_TABLE *ControllerNameTable;
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CHAR16 ModelName[MAX_MODEL_NAME_LEN + 1];
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} ATA_DEVICE;
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#define ATA_DEVICE_FROM_BLOCK_IO(a) CR (a, ATA_DEVICE, BlockIo, ATA_DEVICE_SIGNATURE)
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#define ATA_DEVICE_FROM_DISK_INFO(a) CR (a, ATA_DEVICE, DiskInfo, ATA_DEVICE_SIGNATURE)
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//
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// Global Variables
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//
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extern EFI_DRIVER_BINDING_PROTOCOL gAtaBusDriverBinding;
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extern EFI_COMPONENT_NAME_PROTOCOL gAtaBusComponentName;
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extern EFI_COMPONENT_NAME2_PROTOCOL gAtaBusComponentName2;
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/**
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Wrapper for EFI_ATA_PASS_THRU_PROTOCOL.ResetDevice().
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This function wraps the ResetDevice() invocation for ATA pass through function
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for an ATA device.
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@param AtaDevice The ATA child device involved for the operation.
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@return The return status from EFI_ATA_PASS_THRU_PROTOCOL.PassThru().
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**/
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EFI_STATUS
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ResetAtaDevice (
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IN ATA_DEVICE *AtaDevice
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);
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/**
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Discovers whether it is a valid ATA device.
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This function issues ATA_CMD_IDENTIFY_DRIVE command to the ATA device to identify it.
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If the command is executed successfully, it then identifies it and initializes
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the Media information in Block IO protocol interface.
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@param AtaDevice The ATA child device involved for the operation.
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@retval EFI_SUCCESS The device is successfully identified and Media information
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is correctly initialized.
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@return others Some error occurs when discovering the ATA device.
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**/
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EFI_STATUS
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DiscoverAtaDevice (
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IN OUT ATA_DEVICE *AtaDevice
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);
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/**
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Read or write a number of blocks from ATA device.
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This function performs ATA pass through transactions to read/write data from/to
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ATA device. It may separate the read/write request into several ATA pass through
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transactions.
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@param AtaDevice The ATA child device involved for the operation.
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@param Buffer The pointer to the current transaction buffer.
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@param StartLba The starting logical block address to be accessed.
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@param NumberOfBlocks The block number or sector count of the transfer.
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@param IsWrite Indicates whether it is a write operation.
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@retval EFI_SUCCESS The data transfer is complete successfully.
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@return others Some error occurs when transferring data.
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**/
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EFI_STATUS
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AccessAtaDevice(
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IN OUT ATA_DEVICE *AtaDevice,
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IN OUT UINT8 *Buffer,
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IN EFI_LBA StartLba,
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IN UINTN NumberOfBlocks,
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IN BOOLEAN IsWrite
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);
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//
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// Protocol interface prototypes
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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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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
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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
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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
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different driver. This function must match its calls to AllocatePages() with FreePages(),
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AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol().
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Since ControllerHandle may have been previously started by the same driver, if a protocol is
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already in the opened state, then it must not be closed with CloseProtocol(). This is required
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to guarantee the state of ControllerHandle is not modified by this function.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] ControllerHandle The handle of the controller to test. This handle
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must support a protocol interface that supplies
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an I/O abstraction to the driver.
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@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
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parameter is ignored by device drivers, and is optional for bus
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drivers. For bus drivers, if this parameter is not NULL, then
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the bus driver must determine if the bus controller specified
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by ControllerHandle and the child controller specified
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by RemainingDevicePath are both supported by this
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bus driver.
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@retval EFI_SUCCESS The device specified by ControllerHandle and
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RemainingDevicePath is supported by the driver specified by This.
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@retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
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RemainingDevicePath is already being managed by the driver
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specified by This.
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@retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
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RemainingDevicePath is already being managed by a different
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driver or an application that requires exclusive access.
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Currently not implemented.
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@retval EFI_UNSUPPORTED The device specified by ControllerHandle and
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RemainingDevicePath is not supported by the driver specified by This.
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**/
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EFI_STATUS
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EFIAPI
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AtaBusDriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Controller,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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);
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/**
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Starts a device controller or a bus controller.
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The Start() function is designed to be invoked from the EFI boot service ConnectController().
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As a result, much of the error checking on the parameters to Start() has been moved into this
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common boot service. It is legal to call Start() from other locations,
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but the following calling restrictions must be followed or the system behavior will not be deterministic.
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1. ControllerHandle must be a valid EFI_HANDLE.
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2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned
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EFI_DEVICE_PATH_PROTOCOL.
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3. Prior to calling Start(), the Supported() function for the driver specified by This must
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have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] ControllerHandle The handle of the controller to start. This handle
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must support a protocol interface that supplies
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an I/O abstraction to the driver.
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@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
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parameter is ignored by device drivers, and is optional for bus
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drivers. For a bus driver, if this parameter is NULL, then handles
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for all the children of Controller are created by this driver.
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If this parameter is not NULL and the first Device Path Node is
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not the End of Device Path Node, then only the handle for the
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child device specified by the first Device Path Node of
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RemainingDevicePath is created by this driver.
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If the first Device Path Node of RemainingDevicePath is
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the End of Device Path Node, no child handle is created by this
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driver.
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@retval EFI_SUCCESS The device was started.
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@retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.
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@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
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@retval Others The driver failded to start the device.
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**/
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EFI_STATUS
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EFIAPI
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AtaBusDriverBindingStart (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Controller,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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);
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/**
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Stops a device controller or a bus controller.
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The Stop() function is designed to be invoked from the EFI boot service DisconnectController().
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As a result, much of the error checking on the parameters to Stop() has been moved
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into this common boot service. It is legal to call Stop() from other locations,
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but the following calling restrictions must be followed or the system behavior will not be deterministic.
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1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this
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same driver's Start() function.
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2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid
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EFI_HANDLE. In addition, all of these handles must have been created in this driver's
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Start() function, and the Start() function must have called OpenProtocol() on
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ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] ControllerHandle A handle to the device being stopped. The handle must
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support a bus specific I/O protocol for the driver
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to use to stop the device.
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@param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.
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@param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL
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if NumberOfChildren is 0.
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@retval EFI_SUCCESS The device was stopped.
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@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
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**/
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EFI_STATUS
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EFIAPI
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AtaBusDriverBindingStop (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Controller,
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IN UINTN NumberOfChildren,
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IN EFI_HANDLE *ChildHandleBuffer
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);
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/**
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Retrieves a Unicode string that is the user readable name of the driver.
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This function retrieves the user readable name of a driver in the form of a
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Unicode string. If the driver specified by This has a user readable name in
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the language specified by Language, then a pointer to the driver name is
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returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
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by This does not support the language specified by Language,
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then EFI_UNSUPPORTED is returned.
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@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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EFI_COMPONENT_NAME_PROTOCOL instance.
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@param Language[in] A pointer to a Null-terminated ASCII string
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array indicating the language. This is the
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language of the driver name that the caller is
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requesting, and it must match one of the
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languages specified in SupportedLanguages. The
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number of languages supported by a driver is up
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to the driver writer. Language is specified
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in RFC 4646 or ISO 639-2 language code format.
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@param DriverName[out] A pointer to the Unicode string to return.
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This Unicode string is the name of the
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driver specified by This in the language
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specified by Language.
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@retval EFI_SUCCESS The Unicode string for the Driver specified by
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This and the language specified by Language was
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returned in DriverName.
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@retval EFI_INVALID_PARAMETER Language is NULL.
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@retval EFI_INVALID_PARAMETER DriverName is NULL.
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@retval EFI_UNSUPPORTED The driver specified by This does not support
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the language specified by Language.
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**/
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EFI_STATUS
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EFIAPI
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AtaBusComponentNameGetDriverName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN CHAR8 *Language,
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OUT CHAR16 **DriverName
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);
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/**
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Retrieves a Unicode string that is the user readable name of the controller
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that is being managed by a driver.
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This function retrieves the user readable name of the controller specified by
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ControllerHandle and ChildHandle in the form of a Unicode string. If the
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driver specified by This has a user readable name in the language specified by
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Language, then a pointer to the controller name is returned in ControllerName,
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and EFI_SUCCESS is returned. If the driver specified by This is not currently
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managing the controller specified by ControllerHandle and ChildHandle,
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then EFI_UNSUPPORTED is returned. If the driver specified by This does not
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support the language specified by Language, then EFI_UNSUPPORTED is returned.
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@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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EFI_COMPONENT_NAME_PROTOCOL instance.
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@param ControllerHandle[in] The handle of a controller that the driver
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specified by This is managing. This handle
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specifies the controller whose name is to be
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returned.
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@param ChildHandle[in] The handle of the child controller to retrieve
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the name of. This is an optional parameter that
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may be NULL. It will be NULL for device
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drivers. It will also be NULL for a bus drivers
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that wish to retrieve the name of the bus
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controller. It will not be NULL for a bus
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driver that wishes to retrieve the name of a
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child controller.
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@param Language[in] A pointer to a Null-terminated ASCII string
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array indicating the language. This is the
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language of the driver name that the caller is
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requesting, and it must match one of the
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languages specified in SupportedLanguages. The
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number of languages supported by a driver is up
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to the driver writer. Language is specified in
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RFC 4646 or ISO 639-2 language code format.
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@param ControllerName[out] A pointer to the Unicode string to return.
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This Unicode string is the name of the
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controller specified by ControllerHandle and
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ChildHandle in the language specified by
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Language from the point of view of the driver
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specified by This.
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@retval EFI_SUCCESS The Unicode string for the user readable name in
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the language specified by Language for the
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driver specified by This was returned in
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DriverName.
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@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
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@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
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EFI_HANDLE.
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@retval EFI_INVALID_PARAMETER Language is NULL.
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@retval EFI_INVALID_PARAMETER ControllerName is NULL.
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@retval EFI_UNSUPPORTED The driver specified by This is not currently
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managing the controller specified by
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ControllerHandle and ChildHandle.
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@retval EFI_UNSUPPORTED The driver specified by This does not support
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the language specified by Language.
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**/
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EFI_STATUS
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EFIAPI
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AtaBusComponentNameGetControllerName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_HANDLE ChildHandle OPTIONAL,
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IN CHAR8 *Language,
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OUT CHAR16 **ControllerName
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);
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/**
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Reset the Block Device.
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@param This Indicates a pointer to the calling context.
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@param ExtendedVerification Driver may perform diagnostics on reset.
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@retval EFI_SUCCESS The device was reset.
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@retval EFI_DEVICE_ERROR The device is not functioning properly and could
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not be reset.
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**/
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EFI_STATUS
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EFIAPI
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AtaBlockIoReset (
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IN EFI_BLOCK_IO_PROTOCOL *This,
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IN BOOLEAN ExtendedVerification
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);
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/**
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Read BufferSize bytes from Lba into Buffer.
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@param This Indicates a pointer to the calling context.
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@param MediaId Id of the media, changes every time the media is replaced.
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@param Lba The starting Logical Block Address to read from
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@param BufferSize Size of Buffer, must be a multiple of device block size.
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@param Buffer A pointer to the destination buffer for the data. The caller is
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responsible for either having implicit or explicit ownership of the buffer.
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@retval EFI_SUCCESS The data was read correctly from the device.
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@retval EFI_DEVICE_ERROR The device reported an error while performing the read.
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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 does not matched the current device.
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@retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the 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 buffer is not on proper alignment.
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**/
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EFI_STATUS
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EFIAPI
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AtaBlockIoReadBlocks (
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IN EFI_BLOCK_IO_PROTOCOL *This,
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IN UINT32 MediaId,
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IN EFI_LBA Lba,
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IN UINTN BufferSize,
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OUT VOID *Buffer
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);
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|
|
/**
|
|
Write BufferSize bytes from Lba into Buffer.
|
|
|
|
@param This Indicates a pointer to the calling context.
|
|
@param MediaId The media ID that the write request is for.
|
|
@param Lba The starting logical block address to be written. The caller is
|
|
responsible for writing to only legitimate locations.
|
|
@param BufferSize Size of Buffer, must be a multiple of device block size.
|
|
@param Buffer A pointer to the source buffer for the data.
|
|
|
|
@retval EFI_SUCCESS The data was written correctly to the device.
|
|
@retval EFI_WRITE_PROTECTED The device can not be written to.
|
|
@retval EFI_DEVICE_ERROR The device reported an error while performing the write.
|
|
@retval EFI_NO_MEDIA There is no media in the device.
|
|
@retval EFI_MEDIA_CHNAGED The MediaId does not matched the current device.
|
|
@retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.
|
|
@retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
|
|
or the buffer is not on proper alignment.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaBlockIoWriteBlocks (
|
|
IN EFI_BLOCK_IO_PROTOCOL *This,
|
|
IN UINT32 MediaId,
|
|
IN EFI_LBA Lba,
|
|
IN UINTN BufferSize,
|
|
IN VOID *Buffer
|
|
);
|
|
|
|
|
|
/**
|
|
Flush the Block Device.
|
|
|
|
@param This Indicates a pointer to the calling context.
|
|
|
|
@retval EFI_SUCCESS All outstanding data was written to the device
|
|
@retval EFI_DEVICE_ERROR The device reported an error while writing back the data
|
|
@retval EFI_NO_MEDIA There is no media in the device.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaBlockIoFlushBlocks (
|
|
IN EFI_BLOCK_IO_PROTOCOL *This
|
|
);
|
|
|
|
|
|
/**
|
|
Provides inquiry information for the controller type.
|
|
|
|
This function is used by the IDE bus driver to get inquiry data. Data format
|
|
of Identify data is defined by the Interface GUID.
|
|
|
|
@param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance.
|
|
@param[in, out] InquiryData Pointer to a buffer for the inquiry data.
|
|
@param[in, out] InquiryDataSize Pointer to the value for the inquiry data size.
|
|
|
|
@retval EFI_SUCCESS The command was accepted without any errors.
|
|
@retval EFI_NOT_FOUND Device does not support this data class
|
|
@retval EFI_DEVICE_ERROR Error reading InquiryData from device
|
|
@retval EFI_BUFFER_TOO_SMALL InquiryDataSize not big enough
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaDiskInfoInquiry (
|
|
IN EFI_DISK_INFO_PROTOCOL *This,
|
|
IN OUT VOID *InquiryData,
|
|
IN OUT UINT32 *InquiryDataSize
|
|
);
|
|
|
|
|
|
/**
|
|
Provides identify information for the controller type.
|
|
|
|
This function is used by the IDE bus driver to get identify data. Data format
|
|
of Identify data is defined by the Interface GUID.
|
|
|
|
@param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL
|
|
instance.
|
|
@param[in, out] IdentifyData Pointer to a buffer for the identify data.
|
|
@param[in, out] IdentifyDataSize Pointer to the value for the identify data
|
|
size.
|
|
|
|
@retval EFI_SUCCESS The command was accepted without any errors.
|
|
@retval EFI_NOT_FOUND Device does not support this data class
|
|
@retval EFI_DEVICE_ERROR Error reading IdentifyData from device
|
|
@retval EFI_BUFFER_TOO_SMALL IdentifyDataSize not big enough
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaDiskInfoIdentify (
|
|
IN EFI_DISK_INFO_PROTOCOL *This,
|
|
IN OUT VOID *IdentifyData,
|
|
IN OUT UINT32 *IdentifyDataSize
|
|
);
|
|
|
|
|
|
/**
|
|
Provides sense data information for the controller type.
|
|
|
|
This function is used by the IDE bus driver to get sense data.
|
|
Data format of Sense data is defined by the Interface GUID.
|
|
|
|
@param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance.
|
|
@param[in, out] SenseData Pointer to the SenseData.
|
|
@param[in, out] SenseDataSize Size of SenseData in bytes.
|
|
@param[out] SenseDataNumber Pointer to the value for the sense data size.
|
|
|
|
@retval EFI_SUCCESS The command was accepted without any errors.
|
|
@retval EFI_NOT_FOUND Device does not support this data class.
|
|
@retval EFI_DEVICE_ERROR Error reading SenseData from device.
|
|
@retval EFI_BUFFER_TOO_SMALL SenseDataSize not big enough.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaDiskInfoSenseData (
|
|
IN EFI_DISK_INFO_PROTOCOL *This,
|
|
IN OUT VOID *SenseData,
|
|
IN OUT UINT32 *SenseDataSize,
|
|
OUT UINT8 *SenseDataNumber
|
|
);
|
|
|
|
|
|
/**
|
|
This function is used by the IDE bus driver to get controller information.
|
|
|
|
@param[in] This Pointer to the EFI_DISK_INFO_PROTOCOL instance.
|
|
@param[out] IdeChannel Pointer to the Ide Channel number. Primary or secondary.
|
|
@param[out] IdeDevice Pointer to the Ide Device number. Master or slave.
|
|
|
|
@retval EFI_SUCCESS IdeChannel and IdeDevice are valid.
|
|
@retval EFI_UNSUPPORTED This is not an IDE device.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AtaDiskInfoWhichIde (
|
|
IN EFI_DISK_INFO_PROTOCOL *This,
|
|
OUT UINT32 *IdeChannel,
|
|
OUT UINT32 *IdeDevice
|
|
);
|
|
|
|
#endif
|