Fat.c File Reference

#include "Fat.h"

Go to the source code of this file.

Functions
EFI_STATUS EFIAPI	FatEntryPoint (IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)
EFI_STATUS EFIAPI	FatUnload (IN EFI_HANDLE ImageHandle)
EFI_STATUS EFIAPI	FatDriverBindingSupported (IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_HANDLE Controller, IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath)
EFI_STATUS EFIAPI	FatDriverBindingStart (IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_HANDLE Controller, IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath)
EFI_STATUS EFIAPI	FatDriverBindingStop (IN EFI_DRIVER_BINDING_PROTOCOL *This, IN EFI_HANDLE Controller, IN UINTN NumberOfChildren, IN EFI_HANDLE *ChildHandleBuffer)

Variables
EFI_DRIVER_BINDING_PROTOCOL	gFatDriverBinding

Detailed Description

Fat File System driver routines that support EFI driver model.

Copyright (c) 2005 - 2014, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file Fat.c.

Function Documentation

FatDriverBindingStart()

EFI_STATUS EFIAPI FatDriverBindingStart	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	ControllerHandle,
		IN EFI_DEVICE_PATH_PROTOCOL *	RemainingDevicePath
	)

Start this driver on ControllerHandle by opening a Block IO and Disk IO protocol, reading Device Path. Add a Simple File System protocol to ControllerHandle if the media contains a valid file system.

Parameters

This	- Protocol instance pointer.
ControllerHandle	- Handle of device to bind driver to.
RemainingDevicePath	- Not used.

Return values

EFI_SUCCESS	- This driver is added to DeviceHandle.
EFI_ALREADY_STARTED	- This driver is already running on DeviceHandle.
EFI_OUT_OF_RESOURCES	- Can not allocate the memory.

Returns

other - This driver does not support this device.

Definition at line 357 of file Fat.c.

FatDriverBindingStop()

EFI_STATUS EFIAPI FatDriverBindingStop	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	ControllerHandle,
		IN UINTN	NumberOfChildren,
		IN EFI_HANDLE *	ChildHandleBuffer
	)

Stop this driver on ControllerHandle.

Parameters

This	- Protocol instance pointer.
ControllerHandle	- Handle of device to stop driver on.
NumberOfChildren	- Not used.
ChildHandleBuffer	- Not used.

Return values

EFI_SUCCESS

- This driver is removed DeviceHandle.

Returns

other - This driver was not removed from this device.

Definition at line 485 of file Fat.c.

FatDriverBindingSupported()

EFI_STATUS EFIAPI FatDriverBindingSupported	(	IN EFI_DRIVER_BINDING_PROTOCOL *	This,
		IN EFI_HANDLE	ControllerHandle,
		IN EFI_DEVICE_PATH_PROTOCOL *	RemainingDevicePath
	)

Test to see if this driver can add a file system to ControllerHandle. ControllerHandle must support both Disk IO and Block IO protocols.

Parameters

This	- Protocol instance pointer.
ControllerHandle	- Handle of device to test.
RemainingDevicePath	- Not used.

Return values

EFI_SUCCESS	- This driver supports this device.
EFI_ALREADY_STARTED	- This driver is already running on this device.

Returns

other - This driver does not support this device.

Definition at line 289 of file Fat.c.

FatEntryPoint()

EFI_STATUS EFIAPI FatEntryPoint	(	IN EFI_HANDLE	ImageHandle,
		IN EFI_SYSTEM_TABLE *	SystemTable
	)

Register Driver Binding protocol for this driver.

Parameters

ImageHandle	- Handle for the image of this driver.
SystemTable	- Pointer to the EFI System Table.

Return values

EFI_SUCCESS

- Driver loaded.

Returns

other - Driver not loaded.

Definition at line 138 of file Fat.c.

FatUnload()

EFI_STATUS EFIAPI FatUnload

(

IN EFI_HANDLE

ImageHandle

)

Unload function for this image. Uninstall DriverBinding protocol.

Parameters

ImageHandle

- Handle for the image of this driver.

Return values

EFI_SUCCESS

- Driver unloaded successfully.

Returns

other - Driver can not unloaded.

Definition at line 173 of file Fat.c.

Variable Documentation

gFatDriverBinding

EFI_DRIVER_BINDING_PROTOCOL gFatDriverBinding

Initial value:

= {
  FatDriverBindingSupported,
  FatDriverBindingStart,
  FatDriverBindingStop,
  0xa,
  NULL,
  NULL
}

Definition at line 116 of file Fat.c.