1 /** @file 2 Helper routine and corresponding data struct used by USB Mouse Absolute Pointer Driver. 3 4 Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #ifndef _USB_MOUSE_ABSOLUTE_POINTER_H_ 16 #define _USB_MOUSE_ABSOLUTE_POINTER_H_ 17 18 19 #include <Uefi.h> 20 21 #include <Protocol/AbsolutePointer.h> 22 #include <Protocol/UsbIo.h> 23 #include <Protocol/DevicePath.h> 24 25 #include <Library/ReportStatusCodeLib.h> 26 #include <Library/BaseMemoryLib.h> 27 #include <Library/UefiDriverEntryPoint.h> 28 #include <Library/UefiBootServicesTableLib.h> 29 #include <Library/UefiLib.h> 30 #include <Library/MemoryAllocationLib.h> 31 #include <Library/UefiUsbLib.h> 32 #include <Library/DebugLib.h> 33 34 #include <IndustryStandard/Usb.h> 35 36 #define CLASS_HID 3 37 #define SUBCLASS_BOOT 1 38 #define PROTOCOL_MOUSE 2 39 40 #define BOOT_PROTOCOL 0 41 #define REPORT_PROTOCOL 1 42 43 #define USB_MOUSE_ABSOLUTE_POINTER_DEV_SIGNATURE SIGNATURE_32 ('u', 'm', 's', 't') 44 45 // 46 // A common header for usb standard descriptor. 47 // Each stand descriptor has a length and type. 48 // 49 #pragma pack(1) 50 typedef struct { 51 UINT8 Len; 52 UINT8 Type; 53 } USB_DESC_HEAD; 54 #pragma pack() 55 56 /// 57 /// Button range and status 58 /// 59 typedef struct { 60 BOOLEAN ButtonDetected; 61 UINT8 ButtonMinIndex; 62 UINT8 ButtonMaxIndex; 63 UINT8 Reserved; 64 } USB_MOUSE_BUTTON_DATA; 65 66 /// 67 /// Device instance of USB mouse. 68 /// 69 typedef struct { 70 UINTN Signature; 71 EFI_DEVICE_PATH_PROTOCOL *DevicePath; 72 EFI_EVENT DelayedRecoveryEvent; 73 EFI_USB_IO_PROTOCOL *UsbIo; 74 EFI_USB_INTERFACE_DESCRIPTOR InterfaceDescriptor; 75 EFI_USB_ENDPOINT_DESCRIPTOR IntEndpointDescriptor; 76 UINT8 NumberOfButtons; 77 INT32 XLogicMax; 78 INT32 XLogicMin; 79 INT32 YLogicMax; 80 INT32 YLogicMin; 81 EFI_ABSOLUTE_POINTER_PROTOCOL AbsolutePointerProtocol; 82 EFI_ABSOLUTE_POINTER_STATE State; 83 EFI_ABSOLUTE_POINTER_MODE Mode; 84 BOOLEAN StateChanged; 85 USB_MOUSE_BUTTON_DATA PrivateData; 86 EFI_UNICODE_STRING_TABLE *ControllerNameTable; 87 } USB_MOUSE_ABSOLUTE_POINTER_DEV; 88 89 /// 90 /// General HID Item structure 91 /// 92 93 typedef union { 94 UINT8 Uint8; 95 UINT16 Uint16; 96 UINT32 Uint32; 97 INT8 Int8; 98 INT16 Int16; 99 INT32 Int32; 100 UINT8 *LongData; 101 } HID_DATA; 102 103 typedef struct { 104 UINT16 Format; 105 UINT8 Size; 106 UINT8 Type; 107 UINT8 Tag; 108 HID_DATA Data; 109 } HID_ITEM; 110 111 #define USB_MOUSE_ABSOLUTE_POINTER_DEV_FROM_MOUSE_PROTOCOL(a) \ 112 CR(a, USB_MOUSE_ABSOLUTE_POINTER_DEV, AbsolutePointerProtocol, USB_MOUSE_ABSOLUTE_POINTER_DEV_SIGNATURE) 113 114 // 115 // Global Variables 116 // 117 extern EFI_DRIVER_BINDING_PROTOCOL gUsbMouseAbsolutePointerDriverBinding; 118 extern EFI_COMPONENT_NAME_PROTOCOL gUsbMouseAbsolutePointerComponentName; 119 extern EFI_COMPONENT_NAME2_PROTOCOL gUsbMouseAbsolutePointerComponentName2; 120 121 // 122 // Functions of Driver Binding Protocol 123 // 124 125 /** 126 Check whether USB Mouse Absolute Pointer Driver supports this device. 127 128 @param This The driver binding protocol. 129 @param Controller The controller handle to check. 130 @param RemainingDevicePath The remaining device path. 131 132 @retval EFI_SUCCESS The driver supports this controller. 133 @retval other This device isn't supported. 134 135 **/ 136 EFI_STATUS 137 EFIAPI 138 USBMouseAbsolutePointerDriverBindingSupported ( 139 IN EFI_DRIVER_BINDING_PROTOCOL *This, 140 IN EFI_HANDLE Controller, 141 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath 142 ); 143 144 /** 145 Starts the mouse device with this driver. 146 147 This function consumes USB I/O Portocol, intializes USB mouse device, 148 installs Absolute Pointer Protocol, and submits Asynchronous Interrupt 149 Transfer to manage the USB mouse device. 150 151 @param This The driver binding instance. 152 @param Controller Handle of device to bind driver to. 153 @param RemainingDevicePath Optional parameter use to pick a specific child 154 device to start. 155 156 @retval EFI_SUCCESS This driver supports this device. 157 @retval EFI_UNSUPPORTED This driver does not support this device. 158 @retval EFI_DEVICE_ERROR This driver cannot be started due to device Error. 159 @retval EFI_OUT_OF_RESOURCES Can't allocate memory resources. 160 @retval EFI_ALREADY_STARTED This driver has been started. 161 162 **/ 163 EFI_STATUS 164 EFIAPI 165 USBMouseAbsolutePointerDriverBindingStart ( 166 IN EFI_DRIVER_BINDING_PROTOCOL *This, 167 IN EFI_HANDLE Controller, 168 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath 169 ); 170 171 /** 172 Stop the USB mouse device handled by this driver. 173 174 @param This The driver binding protocol. 175 @param Controller The controller to release. 176 @param NumberOfChildren The number of handles in ChildHandleBuffer. 177 @param ChildHandleBuffer The array of child handle. 178 179 @retval EFI_SUCCESS The device was stopped. 180 @retval EFI_UNSUPPORTED Absolute Pointer Protocol is not installed on Controller. 181 @retval Others Fail to uninstall protocols attached on the device. 182 183 **/ 184 EFI_STATUS 185 EFIAPI 186 USBMouseAbsolutePointerDriverBindingStop ( 187 IN EFI_DRIVER_BINDING_PROTOCOL *This, 188 IN EFI_HANDLE Controller, 189 IN UINTN NumberOfChildren, 190 IN EFI_HANDLE *ChildHandleBuffer 191 ); 192 193 // 194 // EFI Component Name Functions 195 // 196 197 /** 198 Retrieves a Unicode string that is the user readable name of the driver. 199 200 This function retrieves the user readable name of a driver in the form of a 201 Unicode string. If the driver specified by This has a user readable name in 202 the language specified by Language, then a pointer to the driver name is 203 returned in DriverName, and EFI_SUCCESS is returned. If the driver specified 204 by This does not support the language specified by Language, 205 then EFI_UNSUPPORTED is returned. 206 207 @param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or 208 EFI_COMPONENT_NAME_PROTOCOL instance. 209 @param Language A pointer to a Null-terminated ASCII string 210 array indicating the language. This is the 211 language of the driver name that the caller is 212 requesting, and it must match one of the 213 languages specified in SupportedLanguages. The 214 number of languages supported by a driver is up 215 to the driver writer. Language is specified 216 in RFC 4646 or ISO 639-2 language code format. 217 @param DriverName A pointer to the Unicode string to return. 218 This Unicode string is the name of the 219 driver specified by This in the language 220 specified by Language. 221 222 @retval EFI_SUCCESS The Unicode string for the Driver specified by 223 This and the language specified by Language was 224 returned in DriverName. 225 @retval EFI_INVALID_PARAMETER Language is NULL. 226 @retval EFI_INVALID_PARAMETER DriverName is NULL. 227 @retval EFI_UNSUPPORTED The driver specified by This does not support 228 the language specified by Language. 229 230 **/ 231 EFI_STATUS 232 EFIAPI 233 UsbMouseAbsolutePointerComponentNameGetDriverName ( 234 IN EFI_COMPONENT_NAME_PROTOCOL *This, 235 IN CHAR8 *Language, 236 OUT CHAR16 **DriverName 237 ); 238 239 /** 240 Retrieves a Unicode string that is the user readable name of the controller 241 that is being managed by a driver. 242 243 This function retrieves the user readable name of the controller specified by 244 ControllerHandle and ChildHandle in the form of a Unicode string. If the 245 driver specified by This has a user readable name in the language specified by 246 Language, then a pointer to the controller name is returned in ControllerName, 247 and EFI_SUCCESS is returned. If the driver specified by This is not currently 248 managing the controller specified by ControllerHandle and ChildHandle, 249 then EFI_UNSUPPORTED is returned. If the driver specified by This does not 250 support the language specified by Language, then EFI_UNSUPPORTED is returned. 251 252 @param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or 253 EFI_COMPONENT_NAME_PROTOCOL instance. 254 @param ControllerHandle The handle of a controller that the driver 255 specified by This is managing. This handle 256 specifies the controller whose name is to be 257 returned. 258 @param ChildHandle The handle of the child controller to retrieve 259 the name of. This is an optional parameter that 260 may be NULL. It will be NULL for device 261 drivers. It will also be NULL for a bus drivers 262 that wish to retrieve the name of the bus 263 controller. It will not be NULL for a bus 264 driver that wishes to retrieve the name of a 265 child controller. 266 @param Language A pointer to a Null-terminated ASCII string 267 array indicating the language. This is the 268 language of the driver name that the caller is 269 requesting, and it must match one of the 270 languages specified in SupportedLanguages. The 271 number of languages supported by a driver is up 272 to the driver writer. Language is specified in 273 RFC 4646 or ISO 639-2 language code format. 274 @param ControllerName A pointer to the Unicode string to return. 275 This Unicode string is the name of the 276 controller specified by ControllerHandle and 277 ChildHandle in the language specified by 278 Language from the point of view of the driver 279 specified by This. 280 281 @retval EFI_SUCCESS The Unicode string for the user readable name in 282 the language specified by Language for the 283 driver specified by This was returned in 284 DriverName. 285 @retval EFI_INVALID_PARAMETER ControllerHandle is NULL. 286 @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid 287 EFI_HANDLE. 288 @retval EFI_INVALID_PARAMETER Language is NULL. 289 @retval EFI_INVALID_PARAMETER ControllerName is NULL. 290 @retval EFI_UNSUPPORTED The driver specified by This is not currently 291 managing the controller specified by 292 ControllerHandle and ChildHandle. 293 @retval EFI_UNSUPPORTED The driver specified by This does not support 294 the language specified by Language. 295 296 **/ 297 EFI_STATUS 298 EFIAPI 299 UsbMouseAbsolutePointerComponentNameGetControllerName ( 300 IN EFI_COMPONENT_NAME_PROTOCOL *This, 301 IN EFI_HANDLE ControllerHandle, 302 IN EFI_HANDLE ChildHandle OPTIONAL, 303 IN CHAR8 *Language, 304 OUT CHAR16 **ControllerName 305 ); 306 307 // 308 // Functions of EFI_ABSOLUTE_POINTER_PROTOCOL 309 // 310 311 /** 312 Retrieves the current state of a pointer device. 313 314 @param This A pointer to the EFI_ABSOLUTE_POINTER_PROTOCOL instance. 315 @param MouseState A pointer to the state information on the pointer device. 316 317 @retval EFI_SUCCESS The state of the pointer device was returned in State. 318 @retval EFI_NOT_READY The state of the pointer device has not changed since the last call to 319 GetState(). 320 @retval EFI_DEVICE_ERROR A device error occurred while attempting to retrieve the pointer device's 321 current state. 322 @retval EFI_INVALID_PARAMETER State is NULL. 323 324 **/ 325 EFI_STATUS 326 EFIAPI 327 GetMouseAbsolutePointerState ( 328 IN EFI_ABSOLUTE_POINTER_PROTOCOL *This, 329 OUT EFI_ABSOLUTE_POINTER_STATE *State 330 ); 331 332 /** 333 Resets the pointer device hardware. 334 335 @param This A pointer to the EFI_ABSOLUTE_POINTER_PROTOCOL instance. 336 @param ExtendedVerification Indicates that the driver may perform a more exhaustive 337 verification operation of the device during reset. 338 339 @retval EFI_SUCCESS The device was reset. 340 @retval EFI_DEVICE_ERROR The device is not functioning correctly and could not be reset. 341 342 **/ 343 EFI_STATUS 344 EFIAPI 345 UsbMouseAbsolutePointerReset ( 346 IN EFI_ABSOLUTE_POINTER_PROTOCOL *This, 347 IN BOOLEAN ExtendedVerification 348 ); 349 350 /** 351 Event notification function for EFI_ABSOLUTE_POINTER_PROTOCOL.WaitForInput event. 352 353 @param Event Event to be signaled when there's input from mouse. 354 @param Context Points to USB_MOUSE_ABSOLUTE_POINTER_DEV instance. 355 356 **/ 357 VOID 358 EFIAPI 359 UsbMouseAbsolutePointerWaitForInput ( 360 IN EFI_EVENT Event, 361 IN VOID *Context 362 ); 363 364 // 365 // Internal worker functions 366 // 367 368 /** 369 Uses USB I/O to check whether the device is a USB mouse device. 370 371 @param UsbIo Pointer to a USB I/O protocol instance. 372 373 @retval TRUE Device is a USB mouse device. 374 @retval FALSE Device is a not USB mouse device. 375 376 **/ 377 BOOLEAN 378 IsUsbMouse ( 379 IN EFI_USB_IO_PROTOCOL *UsbIo 380 ); 381 382 /** 383 Initialize the USB mouse device. 384 385 This function retrieves and parses HID report descriptor, and 386 initializes state of USB_MOUSE_ABSOLUTE_POINTER_DEV. Then it sets indefinite idle 387 rate for the device. Finally it creates event for delayed recovery, 388 which deals with device error. 389 390 @param UsbMouseAbsolutePointerDev Device instance to be initialized. 391 392 @retval EFI_SUCCESS USB mouse device successfully initialized. 393 @retval EFI_UNSUPPORTED HID descriptor type is not report descriptor. 394 @retval Other USB mouse device was not initialized successfully. 395 396 **/ 397 EFI_STATUS 398 InitializeUsbMouseDevice ( 399 IN USB_MOUSE_ABSOLUTE_POINTER_DEV *UsbMouseAbsolutePointerDev 400 ); 401 402 /** 403 Handler function for USB mouse's asynchronous interrupt transfer. 404 405 This function is the handler function for USB mouse's asynchronous interrupt transfer 406 to manage the mouse. It parses data returned from asynchronous interrupt transfer, and 407 get button and movement state. 408 409 @param Data A pointer to a buffer that is filled with key data which is 410 retrieved via asynchronous interrupt transfer. 411 @param DataLength Indicates the size of the data buffer. 412 @param Context Pointing to USB_KB_DEV instance. 413 @param Result Indicates the result of the asynchronous interrupt transfer. 414 415 @retval EFI_SUCCESS Asynchronous interrupt transfer is handled successfully. 416 @retval EFI_DEVICE_ERROR Hardware error occurs. 417 418 **/ 419 EFI_STATUS 420 EFIAPI 421 OnMouseInterruptComplete ( 422 IN VOID *Data, 423 IN UINTN DataLength, 424 IN VOID *Context, 425 IN UINT32 Result 426 ); 427 428 /** 429 Handler for Delayed Recovery event. 430 431 This function is the handler for Delayed Recovery event triggered 432 by timer. 433 After a device error occurs, the event would be triggered 434 with interval of EFI_USB_INTERRUPT_DELAY. EFI_USB_INTERRUPT_DELAY 435 is defined in USB standard for error handling. 436 437 @param Event The Delayed Recovery event. 438 @param Context Points to the USB_MOUSE_ABSOLUTE_POINTER_DEV instance. 439 440 **/ 441 VOID 442 EFIAPI 443 USBMouseRecoveryHandler ( 444 IN EFI_EVENT Event, 445 IN VOID *Context 446 ); 447 448 /** 449 Parse Mouse Report Descriptor. 450 451 According to USB HID Specification, report descriptors are 452 composed of pieces of information. Each piece of information 453 is called an Item. This function retrieves each item from 454 the report descriptor and updates USB_MOUSE_ABSOLUTE_POINTER_DEV. 455 456 @param UsbMouseAbsolutePointer The instance of USB_MOUSE_ABSOLUTE_POINTER_DEV 457 @param ReportDescriptor Report descriptor to parse 458 @param ReportSize Report descriptor size 459 460 @retval EFI_SUCCESS Report descriptor successfully parsed. 461 @retval EFI_UNSUPPORTED Report descriptor contains long item. 462 463 **/ 464 EFI_STATUS 465 ParseMouseReportDescriptor ( 466 OUT USB_MOUSE_ABSOLUTE_POINTER_DEV *UsbMouseAbsolutePointer, 467 IN UINT8 *ReportDescriptor, 468 IN UINTN ReportSize 469 ); 470 471 #endif 472