mirror of https://github.com/acidanthera/audk.git
333 lines
16 KiB
C
333 lines
16 KiB
C
|
/** @file
|
||
|
|
The SioBusDxe driver is used to create child devices on the ISA bus and
|
||
|
|
installs the Super I/O protocols on them.
|
||
|
|
|
||
|
|
Copyright (c) 2019, 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 __SIO_BUS_DXE_H__
|
||
|
|
#define __SIO_BUS_DXE_H__
|
||
|
|
|
||
|
|
#include <Uefi.h>
|
||
|
|
|
||
|
|
#include <IndustryStandard/Pci.h>
|
||
|
|
|
||
|
|
#include <Protocol/PciIo.h>
|
||
|
|
#include <Protocol/SuperIo.h>
|
||
|
|
|
||
|
|
#include <Library/UefiDriverEntryPoint.h>
|
||
|
|
#include <Library/UefiLib.h>
|
||
|
|
#include <Library/UefiBootServicesTableLib.h>
|
||
|
|
#include <Library/DebugLib.h>
|
||
|
|
#include <Library/ReportStatusCodeLib.h>
|
||
|
|
#include <Library/MemoryAllocationLib.h>
|
||
|
|
#include <Library/BaseMemoryLib.h>
|
||
|
|
#include <Library/DevicePathLib.h>
|
||
|
|
|
||
|
|
#include "SioService.h"
|
||
|
|
|
||
|
|
//
|
||
|
|
// SIO Bus driver private data structure
|
||
|
|
//
|
||
|
|
typedef struct {
|
||
|
|
EFI_PCI_IO_PROTOCOL *PciIo;
|
||
|
|
UINT64 OriginalAttributes;
|
||
|
|
} SIO_BUS_DRIVER_PRIVATE_DATA;
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// Global Variables
|
||
|
|
//
|
||
|
|
extern EFI_COMPONENT_NAME_PROTOCOL gSioBusComponentName;
|
||
|
|
extern EFI_COMPONENT_NAME2_PROTOCOL gSioBusComponentName2;
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// 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[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL
|
||
|
|
or EFI_COMPONENT_NAME_PROTOCOL instance.
|
||
|
|
@param[in] 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[out] 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
|
||
|
|
SioBusComponentNameGetDriverName (
|
||
|
|
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[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL
|
||
|
|
or EFI_COMPONENT_NAME_PROTOCOL instance.
|
||
|
|
@param[in] 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[in] 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[in] 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[out] 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 NULL.
|
||
|
|
@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
|
||
|
|
SioBusComponentNameGetControllerName (
|
||
|
|
IN EFI_COMPONENT_NAME_PROTOCOL *This,
|
||
|
|
IN EFI_HANDLE ControllerHandle,
|
||
|
|
IN EFI_HANDLE ChildHandle OPTIONAL,
|
||
|
|
IN CHAR8 *Language,
|
||
|
|
OUT CHAR16 **ControllerName
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// Driver Binding Protocol interfaces
|
||
|
|
//
|
||
|
|
|
||
|
|
/**
|
||
|
|
Tests to see if this driver supports a given controller. If a child device is
|
||
|
|
provided, it further tests to see if this driver supports creating a handle
|
||
|
|
for the specified child device.
|
||
|
|
|
||
|
|
This function checks to see if the driver specified by This supports the
|
||
|
|
device specified by ControllerHandle. Drivers will typically use the device
|
||
|
|
path attached to ControllerHandle and/or the services from the bus I/O
|
||
|
|
abstraction attached to ControllerHandle to determine if the driver supports
|
||
|
|
ControllerHandle. This function may be called many times during platform
|
||
|
|
initialization. In order to reduce boot times, the tests performed by this
|
||
|
|
function must be very small, and take as little time as possible to execute.
|
||
|
|
This function must not change the state of any hardware devices, and this
|
||
|
|
function must be aware that the device specified by ControllerHandle may
|
||
|
|
already be managed by the same driver or a different driver. This function
|
||
|
|
must match its calls to AllocatePages() with FreePages(), AllocatePool() with
|
||
|
|
FreePool(), and OpenProtocol() with CloseProtocol(). Since ControllerHandle
|
||
|
|
may have been previously started by the same driver, if a protocol is already
|
||
|
|
in the opened state, then it must not be closed with CloseProtocol(). This is
|
||
|
|
required to guarantee the state of ControllerHandle is not modified by this
|
||
|
|
function.
|
||
|
|
|
||
|
|
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL
|
||
|
|
instance.
|
||
|
|
@param[in] ControllerHandle The handle of the controller to test. This
|
||
|
|
handle must support a protocol interface
|
||
|
|
that supplies an I/O abstraction to the
|
||
|
|
driver.
|
||
|
|
@param[in] RemainingDevicePath A pointer to the remaining portion of a
|
||
|
|
device path. This parameter is ignored by
|
||
|
|
device drivers, and is optional for bus
|
||
|
|
drivers. For bus drivers, if this parameter
|
||
|
|
is not NULL, then the bus driver must
|
||
|
|
determine if the bus controller specified by
|
||
|
|
ControllerHandle and the child controller
|
||
|
|
specified by RemainingDevicePath are both
|
||
|
|
supported by this bus driver.
|
||
|
|
|
||
|
|
@retval EFI_SUCCESS The device specified by ControllerHandle and
|
||
|
|
RemainingDevicePath is supported by the
|
||
|
|
driver specified by This.
|
||
|
|
@retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
|
||
|
|
RemainingDevicePath is already being managed
|
||
|
|
by the driver specified by This.
|
||
|
|
@retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
|
||
|
|
RemainingDevicePath is already being managed
|
||
|
|
by a different driver or an application that
|
||
|
|
requires exclusive access.
|
||
|
|
@retval EFI_UNSUPPORTED The device specified by ControllerHandle and
|
||
|
|
RemainingDevicePath is not supported by the
|
||
|
|
driver specified by This.
|
||
|
|
|
||
|
|
**/
|
||
|
|
EFI_STATUS
|
||
|
|
EFIAPI
|
||
|
|
SioBusDriverBindingSupported (
|
||
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
||
|
|
IN EFI_HANDLE Controller,
|
||
|
|
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
|
||
|
|
);
|
||
|
|
|
||
|
|
/**
|
||
|
|
Starts a device controller or a bus controller.
|
||
|
|
|
||
|
|
The Start() function is designed to be invoked from the EFI boot service
|
||
|
|
ConnectController(). As a result, much of the error checking on the
|
||
|
|
parameters to Start() has been moved into this common boot service. It is
|
||
|
|
legal to call Start() from other locations, but the following calling
|
||
|
|
restrictions must be followed or the system behavior will not be
|
||
|
|
deterministic.
|
||
|
|
1. ControllerHandle must be a valid EFI_HANDLE.
|
||
|
|
2. If RemainingDevicePath is not NULL, then it must be a pointer to a
|
||
|
|
naturally aligned EFI_DEVICE_PATH_PROTOCOL.
|
||
|
|
3. Prior to calling Start(), the Supported() function for the driver
|
||
|
|
specified by This must have been called with the same calling parameters,
|
||
|
|
and Supported() must have returned EFI_SUCCESS.
|
||
|
|
|
||
|
|
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL
|
||
|
|
instance.
|
||
|
|
@param[in] ControllerHandle The handle of the controller to start. This
|
||
|
|
handle must support a protocol interface
|
||
|
|
that supplies an I/O abstraction to the
|
||
|
|
driver.
|
||
|
|
@param[in] RemainingDevicePath A pointer to the remaining portion of a
|
||
|
|
device path. This parameter is ignored by
|
||
|
|
device drivers, and is optional for bus
|
||
|
|
drivers. For a bus driver, if this parameter
|
||
|
|
is NULL, then handles for all the children
|
||
|
|
of Controller are created by this driver. If
|
||
|
|
this parameter is not NULL and the first
|
||
|
|
Device Path Node is not the End of Device
|
||
|
|
Path Node, then only the handle for the
|
||
|
|
child device specified by the first Device
|
||
|
|
Path Node of RemainingDevicePath is created
|
||
|
|
by this driver. If the first Device Path
|
||
|
|
Node of RemainingDevicePath is the End of
|
||
|
|
Device Path Node, no child handle is created
|
||
|
|
by this driver.
|
||
|
|
|
||
|
|
@retval EFI_SUCCESS The device was started.
|
||
|
|
@retval EFI_DEVICE_ERROR The device could not be started due to a
|
||
|
|
device error.
|
||
|
|
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
|
||
|
|
lack of resources.
|
||
|
|
@retval Others The driver failded to start the device.
|
||
|
|
|
||
|
|
**/
|
||
|
|
EFI_STATUS
|
||
|
|
EFIAPI
|
||
|
|
SioBusDriverBindingStart (
|
||
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
||
|
|
IN EFI_HANDLE Controller,
|
||
|
|
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
|
||
|
|
);
|
||
|
|
|
||
|
|
/**
|
||
|
|
Stops a device controller or a bus controller.
|
||
|
|
|
||
|
|
The Stop() function is designed to be invoked from the EFI boot service
|
||
|
|
DisconnectController(). As a result, much of the error checking on the
|
||
|
|
parameters to Stop() has been moved into this common boot service. It is
|
||
|
|
legal to call Stop() from other locations, but the following calling
|
||
|
|
restrictions must be followed or the system behavior will not be
|
||
|
|
deterministic.
|
||
|
|
1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous
|
||
|
|
call to this same driver's Start() function.
|
||
|
|
2. The first NumberOfChildren handles of ChildHandleBuffer must all be a
|
||
|
|
valid EFI_HANDLE. In addition, all of these handles must have been created
|
||
|
|
in this driver's Start() function, and the Start() function must have
|
||
|
|
called OpenProtocol() on ControllerHandle with an Attribute of
|
||
|
|
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
|
||
|
|
|
||
|
|
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL
|
||
|
|
instance.
|
||
|
|
@param[in] ControllerHandle A handle to the device being stopped. The
|
||
|
|
handle must support a bus specific I/O
|
||
|
|
protocol for the driver to use to stop the
|
||
|
|
device.
|
||
|
|
@param[in] NumberOfChildren The number of child device handles in
|
||
|
|
ChildHandleBuffer.
|
||
|
|
@param[in] ChildHandleBuffer An array of child handles to be freed. May be
|
||
|
|
NULL if NumberOfChildren is 0.
|
||
|
|
|
||
|
|
@retval EFI_SUCCESS The device was stopped.
|
||
|
|
@retval EFI_DEVICE_ERROR The device could not be stopped due to a
|
||
|
|
device error.
|
||
|
|
|
||
|
|
**/
|
||
|
|
EFI_STATUS
|
||
|
|
EFIAPI
|
||
|
|
SioBusDriverBindingStop (
|
||
|
|
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
||
|
|
IN EFI_HANDLE Controller,
|
||
|
|
IN UINTN NumberOfChildren,
|
||
|
|
IN EFI_HANDLE *ChildHandleBuffer
|
||
|
|
);
|
||
|
|
|
||
|
|
#endif // __SIO_BUS_DXE_H__
|