1 /** @file 2 3 Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR> 4 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions 7 of the BSD License which accompanies this distribution. The 8 full text of the license may be found at 9 http://opensource.org/licenses/bsd-license.php 10 11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 13 14 **/ 15 16 #ifndef _BIOS_KEYBOARD_H_ 17 #define _BIOS_KEYBOARD_H_ 18 19 20 #include <FrameworkDxe.h> 21 22 #include <Guid/StatusCodeDataTypeId.h> 23 #include <Protocol/SimpleTextIn.h> 24 #include <Protocol/SimpleTextInEx.h> 25 #include <Protocol/LegacyBios.h> 26 #include <Protocol/IsaIo.h> 27 #include <Protocol/DevicePath.h> 28 #include <Protocol/Ps2Policy.h> 29 30 #include <Library/DebugLib.h> 31 #include <Library/UefiLib.h> 32 #include <Library/BaseMemoryLib.h> 33 #include <Library/ReportStatusCodeLib.h> 34 #include <Library/UefiDriverEntryPoint.h> 35 #include <Library/UefiBootServicesTableLib.h> 36 #include <Library/MemoryAllocationLib.h> 37 #include <Library/BaseLib.h> 38 #include <Library/PcdLib.h> 39 40 // 41 // Driver Binding Externs 42 // 43 extern EFI_DRIVER_BINDING_PROTOCOL gBiosKeyboardDriverBinding; 44 extern EFI_COMPONENT_NAME_PROTOCOL gBiosKeyboardComponentName; 45 extern EFI_COMPONENT_NAME2_PROTOCOL gBiosKeyboardComponentName2; 46 47 48 #include <IndustryStandard/Pci.h> 49 50 // 51 // BISO Keyboard Defines 52 // 53 #define CHAR_SCANCODE 0xe0 54 #define CHAR_ESC 0x1b 55 56 #define KEYBOARD_8042_DATA_REGISTER 0x60 57 #define KEYBOARD_8042_STATUS_REGISTER 0x64 58 #define KEYBOARD_8042_COMMAND_REGISTER 0x64 59 60 #define KEYBOARD_TIMEOUT 65536 // 0.07s 61 #define KEYBOARD_WAITFORVALUE_TIMEOUT 1000000 // 1s 62 #define KEYBOARD_BAT_TIMEOUT 4000000 // 4s 63 #define KEYBOARD_TIMER_INTERVAL 200000 // 0.02s 64 // KEYBOARD COMMAND BYTE -- read by writing command KBC_CMDREG_VIA64_CMDBYTE_R to 64H, then read from 60H 65 // write by wrting command KBC_CMDREG_VIA64_CMDBYTE_W to 64H, then write to 60H 66 // 7: Reserved 67 // 6: PC/XT translation mode convert 68 // 5: Disable Auxiliary device interface 69 // 4: Disable keyboard interface 70 // 3: Reserved 71 // 2: System Flag: selftest successful 72 // 1: Enable Auxiliary device interrupt 73 // 0: Enable Keyboard interrupt ) 74 // 75 #define KB_CMMBYTE_KSCAN2UNI_COV (0x1 << 6) 76 #define KB_CMMBYTE_DISABLE_AUX (0x1 << 5) 77 #define KB_CMMBYTE_DISABLE_KB (0x1 << 4) 78 #define KB_CMMBYTE_SLFTEST_SUCC (0x1 << 2) 79 #define KB_CMMBYTE_ENABLE_AUXINT (0x1 << 1) 80 #define KB_CMMBYTE_ENABLE_KBINT (0x1 << 0) 81 82 // 83 // KEYBOARD CONTROLLER STATUS REGISTER - read from 64h 84 // 7: Parity error 85 // 6: General time out 86 // 5: Output buffer holds data for AUX 87 // 4: Keyboard is not locked 88 // 3: Command written via 64h / Data written via 60h 89 // 2: KBC self-test successful / Power-on reset 90 // 1: Input buffer holds CPU data / empty 91 // 0: Output buffer holds keyboard data / empty 92 // 93 #define KBC_STSREG_VIA64_PARE (0x1 << 7) 94 #define KBC_STSREG_VIA64_TIM (0x1 << 6) 95 #define KBC_STSREG_VIA64_AUXB (0x1 << 5) 96 #define KBC_STSREG_VIA64_KEYL (0x1 << 4) 97 #define KBC_STSREG_VIA64_C_D (0x1 << 3) 98 #define KBC_STSREG_VIA64_SYSF (0x1 << 2) 99 #define KBC_STSREG_VIA64_INPB (0x1 << 1) 100 #define KBC_STSREG_VIA64_OUTB (0x1 << 0) 101 102 // 103 // COMMANDs of KEYBOARD CONTROLLER COMMAND REGISTER - write to 64h 104 // 105 #define KBC_CMDREG_VIA64_CMDBYTE_R 0x20 106 #define KBC_CMDREG_VIA64_CMDBYTE_W 0x60 107 #define KBC_CMDREG_VIA64_AUX_DISABLE 0xA7 108 #define KBC_CMDREG_VIA64_AUX_ENABLE 0xA8 109 #define KBC_CMDREG_VIA64_KBC_SLFTEST 0xAA 110 #define KBC_CMDREG_VIA64_KB_CKECK 0xAB 111 #define KBC_CMDREG_VIA64_KB_DISABLE 0xAD 112 #define KBC_CMDREG_VIA64_KB_ENABLE 0xAE 113 #define KBC_CMDREG_VIA64_INTP_LOW_R 0xC0 114 #define KBC_CMDREG_VIA64_INTP_HIGH_R 0xC2 115 #define KBC_CMDREG_VIA64_OUTP_R 0xD0 116 #define KBC_CMDREG_VIA64_OUTP_W 0xD1 117 #define KBC_CMDREG_VIA64_OUTB_KB_W 0xD2 118 #define KBC_CMDREG_VIA64_OUTB_AUX_W 0xD3 119 #define KBC_CMDREG_VIA64_AUX_W 0xD4 120 121 // 122 // echos of KEYBOARD CONTROLLER COMMAND - read from 60h 123 // 124 #define KBC_CMDECHO_KBCSLFTEST_OK 0x55 125 #define KBC_CMDECHO_KBCHECK_OK 0x00 126 #define KBC_CMDECHO_ACK 0xFA 127 #define KBC_CMDECHO_BATTEST_OK 0xAA 128 #define KBC_CMDECHO_BATTEST_FAILE 0xFC 129 130 // 131 // OUTPUT PORT COMMANDs - write port by writing KBC_CMDREG_VIA64_OUTP_W via 64H, then write the command to 60H 132 // drive data and clock of KB to high for at least 500us for BAT needs 133 // 134 #define KBC_OUTPORT_DCHIGH_BAT 0xC0 135 // 136 // scan code set type 137 // 138 #define KBC_INPBUF_VIA60_SCODESET1 0x01 139 #define KBC_INPBUF_VIA60_SCODESET2 0x02 140 #define KBC_INPBUF_VIA60_SCODESET3 0x03 141 142 // 143 // COMMANDs written to INPUT BUFFER - write to 60h 144 // 145 #define KBC_INPBUF_VIA60_KBECHO 0xEE 146 #define KBC_INPBUF_VIA60_KBSCODE 0xF0 147 #define KBC_INPBUF_VIA60_KBTYPE 0xF2 148 #define KBC_INPBUF_VIA60_KBDELAY 0xF3 149 #define KBC_INPBUF_VIA60_KBEN 0xF4 150 #define KBC_INPBUF_VIA60_KBSTDDIS 0xF5 151 #define KBC_INPBUF_VIA60_KBSTDEN 0xF6 152 #define KBC_INPBUF_VIA60_KBRESEND 0xFE 153 #define KBC_INPBUF_VIA60_KBRESET 0xFF 154 155 // 156 // 0040h:0017h - KEYBOARD - STATUS FLAGS 1 157 // 7 INSert active 158 // 6 Caps Lock active 159 // 5 Num Lock active 160 // 4 Scroll Lock active 161 // 3 either Alt pressed 162 // 2 either Ctrl pressed 163 // 1 Left Shift pressed 164 // 0 Right Shift pressed 165 // 166 // 0040h:0018h - KEYBOARD - STATUS FLAGS 2 167 // 7: insert key is depressed 168 // 6: caps-lock key is depressed (does not work well) 169 // 5: num-lock key is depressed (does not work well) 170 // 4: scroll lock key is depressed (does not work well) 171 // 3: suspend key has been toggled (does not work well) 172 // 2: system key is pressed and held (does not work well) 173 // 1: left ALT key is pressed 174 // 0: left CTRL key is pressed 175 // 176 #define KB_INSERT_BIT (0x1 << 7) 177 #define KB_CAPS_LOCK_BIT (0x1 << 6) 178 #define KB_NUM_LOCK_BIT (0x1 << 5) 179 #define KB_SCROLL_LOCK_BIT (0x1 << 4) 180 #define KB_ALT_PRESSED (0x1 << 3) 181 #define KB_CTRL_PRESSED (0x1 << 2) 182 #define KB_LEFT_SHIFT_PRESSED (0x1 << 1) 183 #define KB_RIGHT_SHIFT_PRESSED (0x1 << 0) 184 185 #define KB_SUSPEND_PRESSED (0x1 << 3) 186 #define KB_SYSREQ_PRESSED (0x1 << 2) 187 #define KB_LEFT_ALT_PRESSED (0x1 << 1) 188 #define KB_LEFT_CTRL_PRESSED (0x1 << 0) 189 190 // 191 // BIOS Keyboard Device Structure 192 // 193 #define BIOS_KEYBOARD_DEV_SIGNATURE SIGNATURE_32 ('B', 'K', 'B', 'D') 194 #define BIOS_KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE SIGNATURE_32 ('c', 'b', 'k', 'h') 195 196 typedef struct _BIOS_KEYBOARD_CONSOLE_IN_EX_NOTIFY { 197 UINTN Signature; 198 EFI_KEY_DATA KeyData; 199 EFI_KEY_NOTIFY_FUNCTION KeyNotificationFn; 200 LIST_ENTRY NotifyEntry; 201 } BIOS_KEYBOARD_CONSOLE_IN_EX_NOTIFY; 202 203 #define QUEUE_MAX_COUNT 32 204 typedef struct { 205 UINTN Front; 206 UINTN Rear; 207 EFI_KEY_DATA Buffer[QUEUE_MAX_COUNT]; 208 } SIMPLE_QUEUE; 209 210 typedef struct { 211 UINTN Signature; 212 EFI_HANDLE Handle; 213 EFI_LEGACY_BIOS_PROTOCOL *LegacyBios; 214 EFI_ISA_IO_PROTOCOL *IsaIo; 215 EFI_SIMPLE_TEXT_INPUT_PROTOCOL SimpleTextIn; 216 EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL SimpleTextInputEx; 217 UINT16 DataRegisterAddress; 218 UINT16 StatusRegisterAddress; 219 UINT16 CommandRegisterAddress; 220 BOOLEAN ExtendedKeyboard; 221 222 // 223 // Buffer storing EFI_KEY_DATA 224 // 225 SIMPLE_QUEUE Queue; 226 SIMPLE_QUEUE QueueForNotify; 227 228 // 229 // Notification Function List 230 // 231 LIST_ENTRY NotifyList; 232 EFI_EVENT KeyNotifyProcessEvent; 233 EFI_EVENT TimerEvent; 234 235 } BIOS_KEYBOARD_DEV; 236 237 #define BIOS_KEYBOARD_DEV_FROM_THIS(a) CR (a, BIOS_KEYBOARD_DEV, SimpleTextIn, BIOS_KEYBOARD_DEV_SIGNATURE) 238 #define TEXT_INPUT_EX_BIOS_KEYBOARD_DEV_FROM_THIS(a) \ 239 CR (a, \ 240 BIOS_KEYBOARD_DEV, \ 241 SimpleTextInputEx, \ 242 BIOS_KEYBOARD_DEV_SIGNATURE \ 243 ) 244 245 // 246 // Global Variables 247 // 248 extern EFI_DRIVER_BINDING_PROTOCOL gBiosKeyboardDriverBinding; 249 250 // 251 // Driver Binding Protocol functions 252 // 253 254 /** 255 Check whether the driver supports this device. 256 257 @param This The Udriver binding protocol. 258 @param Controller The controller handle to check. 259 @param RemainingDevicePath The remaining device path. 260 261 @retval EFI_SUCCESS The driver supports this controller. 262 @retval other This device isn't supported. 263 264 **/ 265 EFI_STATUS 266 EFIAPI 267 BiosKeyboardDriverBindingSupported ( 268 IN EFI_DRIVER_BINDING_PROTOCOL *This, 269 IN EFI_HANDLE Controller, 270 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath 271 ); 272 273 /** 274 Starts the device with this driver. 275 276 @param This The driver binding instance. 277 @param Controller Handle of device to bind driver to. 278 @param RemainingDevicePath Optional parameter use to pick a specific child 279 device to start. 280 281 @retval EFI_SUCCESS The controller is controlled by the driver. 282 @retval Other This controller cannot be started. 283 284 **/ 285 EFI_STATUS 286 EFIAPI 287 BiosKeyboardDriverBindingStart ( 288 IN EFI_DRIVER_BINDING_PROTOCOL *This, 289 IN EFI_HANDLE Controller, 290 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath 291 ); 292 293 /** 294 Stop the device handled by this driver. 295 296 @param This The driver binding protocol. 297 @param Controller The controller to release. 298 @param NumberOfChildren The number of handles in ChildHandleBuffer. 299 @param ChildHandleBuffer The array of child handle. 300 301 @retval EFI_SUCCESS The device was stopped. 302 @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error. 303 @retval Others Fail to uninstall protocols attached on the device. 304 305 **/ 306 EFI_STATUS 307 EFIAPI 308 BiosKeyboardDriverBindingStop ( 309 IN EFI_DRIVER_BINDING_PROTOCOL *This, 310 IN EFI_HANDLE Controller, 311 IN UINTN NumberOfChildren, 312 IN EFI_HANDLE *ChildHandleBuffer 313 ); 314 315 /** 316 Retrieves a Unicode string that is the user readable name of the driver. 317 318 This function retrieves the user readable name of a driver in the form of a 319 Unicode string. If the driver specified by This has a user readable name in 320 the language specified by Language, then a pointer to the driver name is 321 returned in DriverName, and EFI_SUCCESS is returned. If the driver specified 322 by This does not support the language specified by Language, 323 then EFI_UNSUPPORTED is returned. 324 325 @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or 326 EFI_COMPONENT_NAME_PROTOCOL instance. 327 328 @param Language[in] A pointer to a Null-terminated ASCII string 329 array indicating the language. This is the 330 language of the driver name that the caller is 331 requesting, and it must match one of the 332 languages specified in SupportedLanguages. The 333 number of languages supported by a driver is up 334 to the driver writer. Language is specified 335 in RFC 4646 or ISO 639-2 language code format. 336 337 @param DriverName[out] A pointer to the Unicode string to return. 338 This Unicode string is the name of the 339 driver specified by This in the language 340 specified by Language. 341 342 @retval EFI_SUCCESS The Unicode string for the Driver specified by 343 This and the language specified by Language was 344 returned in DriverName. 345 346 @retval EFI_INVALID_PARAMETER Language is NULL. 347 348 @retval EFI_INVALID_PARAMETER DriverName is NULL. 349 350 @retval EFI_UNSUPPORTED The driver specified by This does not support 351 the language specified by Language. 352 353 **/ 354 EFI_STATUS 355 EFIAPI 356 BiosKeyboardComponentNameGetDriverName ( 357 IN EFI_COMPONENT_NAME_PROTOCOL *This, 358 IN CHAR8 *Language, 359 OUT CHAR16 **DriverName 360 ); 361 362 363 /** 364 Retrieves a Unicode string that is the user readable name of the controller 365 that is being managed by a driver. 366 367 This function retrieves the user readable name of the controller specified by 368 ControllerHandle and ChildHandle in the form of a Unicode string. If the 369 driver specified by This has a user readable name in the language specified by 370 Language, then a pointer to the controller name is returned in ControllerName, 371 and EFI_SUCCESS is returned. If the driver specified by This is not currently 372 managing the controller specified by ControllerHandle and ChildHandle, 373 then EFI_UNSUPPORTED is returned. If the driver specified by This does not 374 support the language specified by Language, then EFI_UNSUPPORTED is returned. 375 376 @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or 377 EFI_COMPONENT_NAME_PROTOCOL instance. 378 379 @param ControllerHandle[in] The handle of a controller that the driver 380 specified by This is managing. This handle 381 specifies the controller whose name is to be 382 returned. 383 384 @param ChildHandle[in] The handle of the child controller to retrieve 385 the name of. This is an optional parameter that 386 may be NULL. It will be NULL for device 387 drivers. It will also be NULL for a bus drivers 388 that wish to retrieve the name of the bus 389 controller. It will not be NULL for a bus 390 driver that wishes to retrieve the name of a 391 child controller. 392 393 @param Language[in] A pointer to a Null-terminated ASCII string 394 array indicating the language. This is the 395 language of the driver name that the caller is 396 requesting, and it must match one of the 397 languages specified in SupportedLanguages. The 398 number of languages supported by a driver is up 399 to the driver writer. Language is specified in 400 RFC 4646 or ISO 639-2 language code format. 401 402 @param ControllerName[out] A pointer to the Unicode string to return. 403 This Unicode string is the name of the 404 controller specified by ControllerHandle and 405 ChildHandle in the language specified by 406 Language from the point of view of the driver 407 specified by This. 408 409 @retval EFI_SUCCESS The Unicode string for the user readable name in 410 the language specified by Language for the 411 driver specified by This was returned in 412 DriverName. 413 414 @retval EFI_INVALID_PARAMETER ControllerHandle is NULL. 415 416 @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid 417 EFI_HANDLE. 418 419 @retval EFI_INVALID_PARAMETER Language is NULL. 420 421 @retval EFI_INVALID_PARAMETER ControllerName is NULL. 422 423 @retval EFI_UNSUPPORTED The driver specified by This is not currently 424 managing the controller specified by 425 ControllerHandle and ChildHandle. 426 427 @retval EFI_UNSUPPORTED The driver specified by This does not support 428 the language specified by Language. 429 430 **/ 431 EFI_STATUS 432 EFIAPI 433 BiosKeyboardComponentNameGetControllerName ( 434 IN EFI_COMPONENT_NAME_PROTOCOL *This, 435 IN EFI_HANDLE ControllerHandle, 436 IN EFI_HANDLE ChildHandle OPTIONAL, 437 IN CHAR8 *Language, 438 OUT CHAR16 **ControllerName 439 ); 440 441 442 // 443 // Simple Text Input Protocol functions 444 // 445 /** 446 Reset the Keyboard and do BAT test for it, if (ExtendedVerification == TRUE) then do some extra keyboard validations. 447 448 @param This Pointer of simple text Protocol. 449 @param ExtendedVerification Whether perform the extra validation of keyboard. True: perform; FALSE: skip. 450 451 @retval EFI_SUCCESS The command byte is written successfully. 452 @retval EFI_DEVICE_ERROR Errors occurred during resetting keyboard. 453 454 **/ 455 EFI_STATUS 456 EFIAPI 457 BiosKeyboardReset ( 458 IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This, 459 IN BOOLEAN ExtendedVerification 460 ); 461 462 /** 463 Read out the scan code of the key that has just been stroked. 464 465 @param This Pointer of simple text Protocol. 466 @param Key Pointer for store the key that read out. 467 468 @retval EFI_SUCCESS The key is read out successfully. 469 @retval other The key reading failed. 470 471 **/ 472 EFI_STATUS 473 EFIAPI 474 BiosKeyboardReadKeyStroke ( 475 IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This, 476 OUT EFI_INPUT_KEY *Key 477 ); 478 479 // 480 // Private worker functions 481 // 482 /** 483 Waiting on the keyboard event, if there's any key pressed by the user, signal the event 484 485 @param Event The event that be siganlled when any key has been stroked. 486 @param Context Pointer of the protocol EFI_SIMPLE_TEXT_INPUT_PROTOCOL. 487 488 **/ 489 VOID 490 EFIAPI 491 BiosKeyboardWaitForKey ( 492 IN EFI_EVENT Event, 493 IN VOID *Context 494 ); 495 496 /** 497 Check key buffer to get the key stroke status. 498 499 @param This Pointer of the protocol EFI_SIMPLE_TEXT_IN_PROTOCOL. 500 501 @retval EFI_SUCCESS A key is being pressed now. 502 @retval Other No key is now pressed. 503 504 **/ 505 EFI_STATUS 506 EFIAPI 507 BiosKeyboardCheckForKey ( 508 IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This 509 ); 510 511 /** 512 Convert unicode combined with scan code of key to the counterpart of EFIScancode of it. 513 514 @param KeyChar Unicode of key. 515 @param ScanCode Scan code of key. 516 517 @return The value of EFI Scancode for the key. 518 @retval SCAN_NULL No corresponding value in the EFI convert table is found for the key. 519 520 **/ 521 UINT16 522 ConvertToEFIScanCode ( 523 IN CHAR16 KeyChar, 524 IN UINT16 ScanCode 525 ); 526 527 /** 528 Check whether there is Ps/2 Keyboard device in system by 0xF4 Keyboard Command 529 If Keyboard receives 0xF4, it will respond with 'ACK'. If it doesn't respond, the device 530 should not be in system. 531 532 @param BiosKeyboardPrivate Keyboard Private Data Struture 533 534 @retval TRUE Keyboard in System. 535 @retval FALSE Keyboard not in System. 536 537 **/ 538 BOOLEAN 539 CheckKeyboardConnect ( 540 IN BIOS_KEYBOARD_DEV *BiosKeyboardPrivate 541 ); 542 543 /** 544 Timer event handler: read a series of key stroke from 8042 545 and put them into memory key buffer. 546 It is registered as running under TPL_NOTIFY 547 548 @param Event The timer event 549 @param Context A BIOS_KEYBOARD_DEV pointer 550 551 **/ 552 VOID 553 EFIAPI 554 BiosKeyboardTimerHandler ( 555 IN EFI_EVENT Event, 556 IN VOID *Context 557 ); 558 559 /** 560 Process key notify. 561 562 @param Event Indicates the event that invoke this function. 563 @param Context Indicates the calling context. 564 **/ 565 VOID 566 EFIAPI 567 KeyNotifyProcessHandler ( 568 IN EFI_EVENT Event, 569 IN VOID *Context 570 ); 571 572 /** 573 Reset the input device and optionaly run diagnostics 574 575 @param This Protocol instance pointer. 576 @param ExtendedVerification Driver may perform diagnostics on reset. 577 578 @retval EFI_SUCCESS The device was reset. 579 @retval EFI_DEVICE_ERROR The device is not functioning properly and could 580 not be reset. 581 582 **/ 583 EFI_STATUS 584 EFIAPI 585 BiosKeyboardResetEx ( 586 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This, 587 IN BOOLEAN ExtendedVerification 588 ); 589 590 /** 591 Reads the next keystroke from the input device. The WaitForKey Event can 592 be used to test for existance of a keystroke via WaitForEvent () call. 593 594 @param This Protocol instance pointer. 595 @param KeyData A pointer to a buffer that is filled in with the keystroke 596 state data for the key that was pressed. 597 598 @retval EFI_SUCCESS The keystroke information was returned. 599 @retval EFI_NOT_READY There was no keystroke data availiable. 600 @retval EFI_DEVICE_ERROR The keystroke information was not returned due to 601 hardware errors. 602 @retval EFI_INVALID_PARAMETER KeyData is NULL. 603 604 **/ 605 EFI_STATUS 606 EFIAPI 607 BiosKeyboardReadKeyStrokeEx ( 608 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This, 609 OUT EFI_KEY_DATA *KeyData 610 ); 611 612 /** 613 Set certain state for the input device. 614 615 @param This Protocol instance pointer. 616 @param KeyToggleState A pointer to the EFI_KEY_TOGGLE_STATE to set the 617 state for the input device. 618 619 @retval EFI_SUCCESS The device state was set successfully. 620 @retval EFI_DEVICE_ERROR The device is not functioning correctly and could 621 not have the setting adjusted. 622 @retval EFI_UNSUPPORTED The device does not have the ability to set its state. 623 @retval EFI_INVALID_PARAMETER KeyToggleState is NULL. 624 625 **/ 626 EFI_STATUS 627 EFIAPI 628 BiosKeyboardSetState ( 629 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This, 630 IN EFI_KEY_TOGGLE_STATE *KeyToggleState 631 ); 632 633 /** 634 Register a notification function for a particular keystroke for the input device. 635 636 @param This Protocol instance pointer. 637 @param KeyData A pointer to a buffer that is filled in with the keystroke 638 information data for the key that was pressed. 639 @param KeyNotificationFunction Points to the function to be called when the key 640 sequence is typed specified by KeyData. 641 @param NotifyHandle Points to the unique handle assigned to the registered notification. 642 643 644 @retval EFI_SUCCESS The notification function was registered successfully. 645 @retval EFI_OUT_OF_RESOURCES Unable to allocate resources for necesssary data structures. 646 @retval EFI_INVALID_PARAMETER KeyData or NotifyHandle is NULL. 647 648 **/ 649 EFI_STATUS 650 EFIAPI 651 BiosKeyboardRegisterKeyNotify ( 652 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This, 653 IN EFI_KEY_DATA *KeyData, 654 IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction, 655 OUT VOID **NotifyHandle 656 ); 657 658 /** 659 Remove a registered notification function from a particular keystroke. 660 661 @param This Protocol instance pointer. 662 @param NotificationHandle The handle of the notification function being unregistered. 663 664 @retval EFI_SUCCESS The notification function was unregistered successfully. 665 @retval EFI_INVALID_PARAMETER The NotificationHandle is invalid. 666 667 **/ 668 EFI_STATUS 669 EFIAPI 670 BiosKeyboardUnregisterKeyNotify ( 671 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This, 672 IN VOID *NotificationHandle 673 ); 674 675 /** 676 Wait for a specific value to be presented in 677 Data register of Keyboard Controller by keyboard and then read it, 678 used in keyboard commands ack 679 680 @param BiosKeyboardPrivate Keyboard instance pointer. 681 @param Value The value to be waited for 682 @param WaitForValueTimeOut The limit of microseconds for timeout 683 684 @retval EFI_SUCCESS The command byte is written successfully. 685 @retval EFI_TIMEOUT Timeout occurred during writing. 686 687 **/ 688 EFI_STATUS 689 KeyboardWaitForValue ( 690 IN BIOS_KEYBOARD_DEV *BiosKeyboardPrivate, 691 IN UINT8 Value, 692 IN UINTN WaitForValueTimeOut 693 ); 694 695 /** 696 Write data byte to input buffer or input/output ports of Keyboard Controller with delay and waiting for buffer-empty state. 697 698 @param BiosKeyboardPrivate Keyboard instance pointer. 699 @param Data Data byte to write. 700 701 @retval EFI_SUCCESS The data byte is written successfully. 702 @retval EFI_TIMEOUT Timeout occurred during writing. 703 704 **/ 705 EFI_STATUS 706 KeyboardWrite ( 707 IN BIOS_KEYBOARD_DEV *BiosKeyboardPrivate, 708 IN UINT8 Data 709 ); 710 711 /** 712 Free keyboard notify list. 713 714 @param ListHead The list head 715 716 @retval EFI_SUCCESS Free the notify list successfully 717 @retval EFI_INVALID_PARAMETER ListHead is invalid. 718 719 **/ 720 EFI_STATUS 721 BiosKeyboardFreeNotifyList ( 722 IN OUT LIST_ENTRY *ListHead 723 ); 724 725 /** 726 Check if key is registered. 727 728 @param RegsiteredData A pointer to a buffer that is filled in with the keystroke 729 state data for the key that was registered. 730 @param InputData A pointer to a buffer that is filled in with the keystroke 731 state data for the key that was pressed. 732 733 @retval TRUE Key be pressed matches a registered key. 734 @retval FLASE Match failed. 735 736 **/ 737 BOOLEAN 738 IsKeyRegistered ( 739 IN EFI_KEY_DATA *RegsiteredData, 740 IN EFI_KEY_DATA *InputData 741 ); 742 743 /** 744 Waiting on the keyboard event, if there's any key pressed by the user, signal the event 745 746 @param Event The event that be siganlled when any key has been stroked. 747 @param Context Pointer of the protocol EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL. 748 749 **/ 750 VOID 751 EFIAPI 752 BiosKeyboardWaitForKeyEx ( 753 IN EFI_EVENT Event, 754 IN VOID *Context 755 ); 756 757 #endif 758 759