56d7640a53
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10439 6f19259b-4bc3-4df7-8a09-765794883524
347 lines
15 KiB
C
347 lines
15 KiB
C
/** @file
|
|
Definitions of functions for Driver Binding Protocol and Block I/O Protocol,
|
|
and other internal definitions.
|
|
|
|
Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
|
|
This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
**/
|
|
|
|
#ifndef _EFI_BLOCK_MMIO_TO_BLOCK_IO_H_
|
|
#define _EFI_BLOCK_MMIO_TO_BLOCK_IO_H_
|
|
|
|
#include <Uefi.h>
|
|
#include <Protocol/BlockMmio.h>
|
|
#include <Protocol/ComponentName.h>
|
|
#include <Protocol/ComponentName2.h>
|
|
#include <Protocol/CpuIo2.h>
|
|
#include <Protocol/DevicePath.h>
|
|
#include <Protocol/DriverBinding.h>
|
|
#include <Library/BaseLib.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/MemoryAllocationLib.h>
|
|
#include <Library/UefiBootServicesTableLib.h>
|
|
#include <Library/UefiLib.h>
|
|
|
|
#define BLOCK_MMIO_TO_BLOCK_IO_SIGNATURE SIGNATURE_32 ('B', 'M', 'I', 'O')
|
|
|
|
#define PRIVATE_FROM_BLOCK_IO(a) \
|
|
CR (a, BLOCK_MMIO_TO_BLOCK_IO_DEVICE, BlockIo, BLOCK_MMIO_TO_BLOCK_IO_SIGNATURE)
|
|
|
|
extern EFI_COMPONENT_NAME_PROTOCOL gBlockMmioToBlockIoComponentName;
|
|
extern EFI_COMPONENT_NAME2_PROTOCOL gBlockMmioToBlockIoComponentName2;
|
|
|
|
typedef struct {
|
|
UINT32 Signature;
|
|
EFI_HANDLE Controller;
|
|
BLOCK_MMIO_PROTOCOL *BlockMmio;
|
|
EFI_CPU_IO2_PROTOCOL *CpuIo;
|
|
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
|
|
EFI_BLOCK_IO_PROTOCOL BlockIo;
|
|
} BLOCK_MMIO_TO_BLOCK_IO_DEVICE;
|
|
|
|
//
|
|
// Functions for Driver Binding Protocol
|
|
//
|
|
|
|
/**
|
|
Check whether the controller is a supported.
|
|
|
|
@param This The driver binding protocol.
|
|
@param Controller The controller handle to check.
|
|
@param RemainingDevicePath The remaining device path.
|
|
|
|
@retval EFI_SUCCESS The driver supports this controller.
|
|
@retval other This device isn't supported.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
BlockIoDriverBindingSupported (
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
IN EFI_HANDLE Controller,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
|
|
);
|
|
|
|
/**
|
|
Starts the BlockIo device with this driver.
|
|
|
|
This function consumes Block MMIO Portocol and
|
|
installs Block I/O Protocol.
|
|
|
|
@param This The driver binding protocol.
|
|
@param Controller The Block MMIO device to start on
|
|
@param RemainingDevicePath The remaining device path.
|
|
|
|
@retval EFI_SUCCESS This driver supports this device.
|
|
@retval EFI_UNSUPPORTED This driver does not support this device.
|
|
@retval EFI_DEVICE_ERROR This driver cannot be started due to device Error.
|
|
@retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
|
|
@retval EFI_ALREADY_STARTED This driver has been started.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
BlockIoDriverBindingStart (
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
IN EFI_HANDLE Controller,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
|
|
);
|
|
|
|
/**
|
|
Stop controlling the device.
|
|
|
|
@param This The driver binding
|
|
@param Controller The device controller controlled by the driver.
|
|
@param NumberOfChildren The number of children of this device
|
|
@param ChildHandleBuffer The buffer of children handle.
|
|
|
|
@retval EFI_SUCCESS The driver stopped from controlling the device.
|
|
@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
|
|
@retval EFI_UNSUPPORTED Block I/O Protocol is not installed on Controller.
|
|
@retval Others Failed to stop the driver
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
BlockIoDriverBindingStop (
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
|
IN EFI_HANDLE Controller,
|
|
IN UINTN NumberOfChildren,
|
|
IN EFI_HANDLE *ChildHandleBuffer
|
|
);
|
|
|
|
//
|
|
// Functions for Block I/O Protocol
|
|
//
|
|
|
|
/**
|
|
Reset the block device.
|
|
|
|
This function implements EFI_BLOCK_IO_PROTOCOL.Reset().
|
|
It resets the block device hardware.
|
|
ExtendedVerification is ignored in this implementation.
|
|
|
|
@param This Indicates a pointer to the calling context.
|
|
@param ExtendedVerification Indicates that the driver may perform a more exhaustive
|
|
verification operation of the device during reset.
|
|
|
|
@retval EFI_SUCCESS The block device was reset.
|
|
@retval EFI_DEVICE_ERROR The block device is not functioning correctly and could not be reset.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
BlockIoReset (
|
|
IN EFI_BLOCK_IO_PROTOCOL *This,
|
|
IN BOOLEAN ExtendedVerification
|
|
);
|
|
|
|
/**
|
|
Reads the requested number of blocks from the device.
|
|
|
|
This function implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks().
|
|
It reads the requested number of blocks from the device.
|
|
All the blocks are read, or an error is returned.
|
|
|
|
@param This Indicates a pointer to the calling context.
|
|
@param MediaId The media ID that the read request is for.
|
|
@param Lba The starting logical block address to read from on the device.
|
|
@param BufferSize The size of the Buffer in bytes.
|
|
This must be a multiple of the intrinsic block size of the device.
|
|
@param Buffer A pointer to the destination buffer for the data. The caller is
|
|
responsible for either having implicit or explicit ownership of the buffer.
|
|
|
|
@retval EFI_SUCCESS The data was read correctly from the device.
|
|
@retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the read operation.
|
|
@retval EFI_NO_MEDIA There is no media in the device.
|
|
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
|
|
@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic block size of the device.
|
|
@retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
|
|
or the buffer is not on proper alignment.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
BlockIoReadBlocks (
|
|
IN EFI_BLOCK_IO_PROTOCOL *This,
|
|
IN UINT32 MediaId,
|
|
IN EFI_LBA Lba,
|
|
IN UINTN BufferSize,
|
|
OUT VOID *Buffer
|
|
);
|
|
|
|
/**
|
|
Writes a specified number of blocks to the device.
|
|
|
|
This function implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks().
|
|
It writes a specified number of blocks to the device.
|
|
All blocks are written, or an error is returned.
|
|
|
|
@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.
|
|
@param BufferSize The size of the Buffer in bytes.
|
|
This must be a multiple of the intrinsic block size of the device.
|
|
@param Buffer Pointer to the source buffer for the data.
|
|
|
|
@retval EFI_SUCCESS The data were written correctly to the device.
|
|
@retval EFI_WRITE_PROTECTED The device cannot be written to.
|
|
@retval EFI_NO_MEDIA There is no media in the device.
|
|
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
|
|
@retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the write operation.
|
|
@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic
|
|
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
|
|
BlockIoWriteBlocks (
|
|
IN EFI_BLOCK_IO_PROTOCOL *This,
|
|
IN UINT32 MediaId,
|
|
IN EFI_LBA Lba,
|
|
IN UINTN BufferSize,
|
|
IN VOID *Buffer
|
|
);
|
|
|
|
/**
|
|
Flushes all modified data to a physical block device.
|
|
|
|
@param This Indicates a pointer to the calling context.
|
|
|
|
@retval EFI_SUCCESS All outstanding data were written correctly to the device.
|
|
@retval EFI_DEVICE_ERROR The device reported an error while attempting to write data.
|
|
@retval EFI_NO_MEDIA There is no media in the device.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
BlockIoFlushBlocks (
|
|
IN EFI_BLOCK_IO_PROTOCOL *This
|
|
);
|
|
|
|
//
|
|
// EFI Component Name Functions
|
|
//
|
|
|
|
/**
|
|
Retrieves a Unicode string that is the user readable name of the driver.
|
|
|
|
This function retrieves the user readable name of a driver in the form of a
|
|
Unicode string. If the driver specified by This has a user readable name in
|
|
the language specified by Language, then a pointer to the driver name is
|
|
returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
|
|
by This does not support the language specified by Language,
|
|
then EFI_UNSUPPORTED is returned.
|
|
|
|
@param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
|
|
EFI_COMPONENT_NAME_PROTOCOL instance.
|
|
@param Language A pointer to a Null-terminated ASCII string
|
|
array indicating the language. This is the
|
|
language of the driver name that the caller is
|
|
requesting, and it must match one of the
|
|
languages specified in SupportedLanguages. The
|
|
number of languages supported by a driver is up
|
|
to the driver writer. Language is specified
|
|
in RFC 4646 or ISO 639-2 language code format.
|
|
@param DriverName A pointer to the Unicode string to return.
|
|
This Unicode string is the name of the
|
|
driver specified by This in the language
|
|
specified by Language.
|
|
|
|
@retval EFI_SUCCESS The Unicode string for the Driver specified by
|
|
This and the language specified by Language was
|
|
returned in DriverName.
|
|
@retval EFI_INVALID_PARAMETER Language is NULL.
|
|
@retval EFI_INVALID_PARAMETER DriverName is NULL.
|
|
@retval EFI_UNSUPPORTED The driver specified by This does not support
|
|
the language specified by Language.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
BlockMmioToBlockIoGetDriverName (
|
|
IN EFI_COMPONENT_NAME_PROTOCOL *This,
|
|
IN CHAR8 *Language,
|
|
OUT CHAR16 **DriverName
|
|
);
|
|
|
|
|
|
/**
|
|
Retrieves a Unicode string that is the user readable name of the controller
|
|
that is being managed by a driver.
|
|
|
|
This function retrieves the user readable name of the controller specified by
|
|
ControllerHandle and ChildHandle in the form of a Unicode string. If the
|
|
driver specified by This has a user readable name in the language specified by
|
|
Language, then a pointer to the controller name is returned in ControllerName,
|
|
and EFI_SUCCESS is returned. If the driver specified by This is not currently
|
|
managing the controller specified by ControllerHandle and ChildHandle,
|
|
then EFI_UNSUPPORTED is returned. If the driver specified by This does not
|
|
support the language specified by Language, then EFI_UNSUPPORTED is returned.
|
|
|
|
@param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
|
|
EFI_COMPONENT_NAME_PROTOCOL instance.
|
|
@param ControllerHandle The handle of a controller that the driver
|
|
specified by This is managing. This handle
|
|
specifies the controller whose name is to be
|
|
returned.
|
|
@param ChildHandle The handle of the child controller to retrieve
|
|
the name of. This is an optional parameter that
|
|
may be NULL. It will be NULL for device
|
|
drivers. It will also be NULL for a bus drivers
|
|
that wish to retrieve the name of the bus
|
|
controller. It will not be NULL for a bus
|
|
driver that wishes to retrieve the name of a
|
|
child controller.
|
|
@param Language A pointer to a Null-terminated ASCII string
|
|
array indicating the language. This is the
|
|
language of the driver name that the caller is
|
|
requesting, and it must match one of the
|
|
languages specified in SupportedLanguages. The
|
|
number of languages supported by a driver is up
|
|
to the driver writer. Language is specified in
|
|
RFC 4646 or ISO 639-2 language code format.
|
|
@param ControllerName A pointer to the Unicode string to return.
|
|
This Unicode string is the name of the
|
|
controller specified by ControllerHandle and
|
|
ChildHandle in the language specified by
|
|
Language from the point of view of the driver
|
|
specified by This.
|
|
|
|
@retval EFI_SUCCESS The Unicode string for the user readable name in
|
|
the language specified by Language for the
|
|
driver specified by This was returned in
|
|
DriverName.
|
|
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
|
|
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
|
|
EFI_HANDLE.
|
|
@retval EFI_INVALID_PARAMETER Language is NULL.
|
|
@retval EFI_INVALID_PARAMETER ControllerName is NULL.
|
|
@retval EFI_UNSUPPORTED The driver specified by This is not currently
|
|
managing the controller specified by
|
|
ControllerHandle and ChildHandle.
|
|
@retval EFI_UNSUPPORTED The driver specified by This does not support
|
|
the language specified by Language.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
BlockMmioToBlockIoGetControllerName (
|
|
IN EFI_COMPONENT_NAME_PROTOCOL *This,
|
|
IN EFI_HANDLE ControllerHandle,
|
|
IN EFI_HANDLE ChildHandle OPTIONAL,
|
|
IN CHAR8 *Language,
|
|
OUT CHAR16 **ControllerName
|
|
);
|
|
|
|
#endif
|