/** @file
Helper routine and corresponding data struct used by USB Mouse Driver.
Copyright (c) 2004 - 2012, 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_USB_MOUSE_H_
#define _EFI_USB_MOUSE_H_
#include <Uefi.h>
#include <Protocol/SimplePointer.h>
#include <Protocol/UsbIo.h>
#include <Protocol/DevicePath.h>
#include <Library/ReportStatusCodeLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiUsbLib.h>
#include <Library/DebugLib.h>
#include <IndustryStandard/Usb.h>
#define CLASS_HID 3
#define SUBCLASS_BOOT 1
#define PROTOCOL_MOUSE 2
#define BOOT_PROTOCOL 0
#define REPORT_PROTOCOL 1
#define USB_MOUSE_DEV_SIGNATURE SIGNATURE_32 ('u', 'm', 'o', 'u')
//
// A common header for usb standard descriptor.
// Each stand descriptor has a length and type.
//
#pragma pack(1)
typedef struct {
UINT8 Len;
UINT8 Type;
} USB_DESC_HEAD;
#pragma pack()
///
/// Button range and status
///
typedef struct {
BOOLEAN ButtonDetected;
UINT8 ButtonMinIndex;
UINT8 ButtonMaxIndex;
UINT8 Reserved;
} USB_MOUSE_BUTTON_DATA;
///
/// Device instance of USB mouse.
///
typedef struct {
UINTN Signature;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_EVENT DelayedRecoveryEvent;
EFI_USB_IO_PROTOCOL *UsbIo;
EFI_USB_INTERFACE_DESCRIPTOR InterfaceDescriptor;
EFI_USB_ENDPOINT_DESCRIPTOR IntEndpointDescriptor;
UINT8 NumberOfButtons;
INT32 XLogicMax;
INT32 XLogicMin;
INT32 YLogicMax;
INT32 YLogicMin;
EFI_SIMPLE_POINTER_PROTOCOL SimplePointerProtocol;
EFI_SIMPLE_POINTER_STATE State;
EFI_SIMPLE_POINTER_MODE Mode;
BOOLEAN StateChanged;
USB_MOUSE_BUTTON_DATA PrivateData;
EFI_UNICODE_STRING_TABLE *ControllerNameTable;
} USB_MOUSE_DEV;
///
/// General HID Item structure
///
typedef union {
UINT8 Uint8;
UINT16 Uint16;
UINT32 Uint32;
INT8 Int8;
INT16 Int16;
INT32 Int32;
UINT8 *LongData;
} HID_DATA;
typedef struct {
UINT16 Format;
UINT8 Size;
UINT8 Type;
UINT8 Tag;
HID_DATA Data;
} HID_ITEM;
#define USB_MOUSE_DEV_FROM_MOUSE_PROTOCOL(a) \
CR(a, USB_MOUSE_DEV, SimplePointerProtocol, USB_MOUSE_DEV_SIGNATURE)
//
// Global Variables
//
extern EFI_DRIVER_BINDING_PROTOCOL gUsbMouseDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL gUsbMouseComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gUsbMouseComponentName2;
//
// Functions of Driver Binding Protocol
//
/**
Check whether USB mouse driver supports this device.
@param This The USB mouse 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
USBMouseDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Starts the mouse device with this driver.
This function consumes USB I/O Portocol, intializes USB mouse device,
installs Simple Pointer Protocol, and submits Asynchronous Interrupt
Transfer to manage the USB mouse device.
@param This The USB mouse driver binding instance.
@param Controller Handle of device to bind driver to.
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@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
USBMouseDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Stop the USB mouse device handled by this driver.
@param This The USB mouse driver binding protocol.
@param Controller The controller to release.
@param NumberOfChildren The number of handles in ChildHandleBuffer.
@param ChildHandleBuffer The array of child handle.
@retval EFI_SUCCESS The device was stopped.
@retval EFI_UNSUPPORTED Simple Pointer Protocol is not installed on Controller.
@retval Others Fail to uninstall protocols attached on the device.
**/
EFI_STATUS
EFIAPI
USBMouseDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
);
//
// 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
UsbMouseComponentNameGetDriverName (
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 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
UsbMouseComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
);
//
// Functions of EFI_SIMPLE_POINTER_PROTOCOL
//
/**
Retrieves the current state of a pointer device.
@param This A pointer to the EFI_SIMPLE_POINTER_PROTOCOL instance.
@param MouseState A pointer to the state information on the pointer device.
@retval EFI_SUCCESS The state of the pointer device was returned in State.
@retval EFI_NOT_READY The state of the pointer device has not changed since the last call to
GetState().
@retval EFI_DEVICE_ERROR A device error occurred while attempting to retrieve the pointer device's
current state.
@retval EFI_INVALID_PARAMETER MouseState is NULL.
**/
EFI_STATUS
EFIAPI
GetMouseState (
IN EFI_SIMPLE_POINTER_PROTOCOL *This,
OUT EFI_SIMPLE_POINTER_STATE *MouseState
);
/**
Resets the pointer device hardware.
@param This A pointer to the EFI_SIMPLE_POINTER_PROTOCOL instance.
@param ExtendedVerification Indicates that the driver may perform a more exhaustive
verification operation of the device during reset.
@retval EFI_SUCCESS The device was reset.
@retval EFI_DEVICE_ERROR The device is not functioning correctly and could not be reset.
**/
EFI_STATUS
EFIAPI
UsbMouseReset (
IN EFI_SIMPLE_POINTER_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
);
/**
Event notification function for SIMPLE_POINTER.WaitForInput event.
@param Event Event to be signaled when there's input from mouse.
@param Context Points to USB_MOUSE_DEV instance.
**/
VOID
EFIAPI
UsbMouseWaitForInput (
IN EFI_EVENT Event,
IN VOID *Context
);
//
// Internal worker functions
//
/**
Uses USB I/O to check whether the device is a USB mouse device.
@param UsbIo Pointer to a USB I/O protocol instance.
@retval TRUE Device is a USB mouse device.
@retval FALSE Device is a not USB mouse device.
**/
BOOLEAN
IsUsbMouse (
IN EFI_USB_IO_PROTOCOL *UsbIo
);
/**
Initialize the USB mouse device.
This function retrieves and parses HID report descriptor, and
initializes state of USB_MOUSE_DEV. Then it sets indefinite idle
rate for the device. Finally it creates event for delayed recovery,
which deals with device error.
@param UsbMouseDev Device instance to be initialized.
@retval EFI_SUCCESS USB mouse device successfully initialized..
@retval EFI_UNSUPPORTED HID descriptor type is not report descriptor.
@retval Other USB mouse device was not initialized successfully.
**/
EFI_STATUS
InitializeUsbMouseDevice (
IN OUT USB_MOUSE_DEV *UsbMouseDev
);
/**
Handler function for USB mouse's asynchronous interrupt transfer.
This function is the handler function for USB mouse's asynchronous interrupt transfer
to manage the mouse. It parses data returned from asynchronous interrupt transfer, and
get button and movement state.
@param Data A pointer to a buffer that is filled with key data which is
retrieved via asynchronous interrupt transfer.
@param DataLength Indicates the size of the data buffer.
@param Context Pointing to USB_KB_DEV instance.
@param Result Indicates the result of the asynchronous interrupt transfer.
@retval EFI_SUCCESS Asynchronous interrupt transfer is handled successfully.
@retval EFI_DEVICE_ERROR Hardware error occurs.
**/
EFI_STATUS
EFIAPI
OnMouseInterruptComplete (
IN VOID *Data,
IN UINTN DataLength,
IN VOID *Context,
IN UINT32 Result
);
/**
Handler for Delayed Recovery event.
This function is the handler for Delayed Recovery event triggered
by timer.
After a device error occurs, the event would be triggered
with interval of EFI_USB_INTERRUPT_DELAY. EFI_USB_INTERRUPT_DELAY
is defined in USB standard for error handling.
@param Event The Delayed Recovery event.
@param Context Points to the USB_MOUSE_DEV instance.
**/
VOID
EFIAPI
USBMouseRecoveryHandler (
IN EFI_EVENT Event,
IN VOID *Context
);
/**
Parse Mouse Report Descriptor.
According to USB HID Specification, report descriptors are
composed of pieces of information. Each piece of information
is called an Item. This function retrieves each item from
the report descriptor and updates USB_MOUSE_DEV.
@param UsbMouse The instance of USB_MOUSE_DEV
@param ReportDescriptor Report descriptor to parse
@param ReportSize Report descriptor size
@retval EFI_SUCCESS Report descriptor successfully parsed.
@retval EFI_UNSUPPORTED Report descriptor contains long item.
**/
EFI_STATUS
ParseMouseReportDescriptor (
OUT USB_MOUSE_DEV *UsbMouse,
IN UINT8 *ReportDescriptor,
IN UINTN ReportSize
);
#endif