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05fbd06d | 1 | /**@file\r |
f3d1e940 | 2 | PS/2 keyboard driver header file\r |
05fbd06d | 3 | \r |
df0dcb5e | 4 | Copyright (c) 2006 - 2007, Intel Corporation\r |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
05fbd06d | 12 | \r |
13 | **/\r | |
14 | \r | |
15 | #ifndef _PS2KEYBOARD_H\r | |
16 | #define _PS2KEYBOARD_H\r | |
17 | \r | |
752f2e26 | 18 | #include <PiDxe.h>\r |
19 | #include <Framework/StatusCode.h>\r | |
20 | \r | |
21 | #include <Protocol/SimpleTextIn.h>\r | |
f3d1e940 | 22 | #include <Protocol/SimpleTextInEx.h>\r |
752f2e26 | 23 | #include <Protocol/IsaIo.h>\r |
24 | #include <Protocol/DevicePath.h>\r | |
25 | #include <Protocol/Ps2Policy.h>\r | |
26 | \r | |
27 | #include <Library/UefiDriverEntryPoint.h>\r | |
28 | #include <Library/UefiLib.h>\r | |
29 | #include <Library/UefiBootServicesTableLib.h>\r | |
30 | #include <Library/ReportStatusCodeLib.h>\r | |
31 | #include <Library/DebugLib.h>\r | |
32 | #include <Library/UefiRuntimeServicesTableLib.h>\r | |
33 | #include <Library/MemoryAllocationLib.h>\r | |
f3d1e940 | 34 | #include <Library/BaseLib.h>\r |
35 | #include <Library/BaseMemoryLib.h>\r | |
05fbd06d | 36 | \r |
37 | //\r | |
38 | // Driver Private Data\r | |
39 | //\r | |
40 | #define KEYBOARD_BUFFER_MAX_COUNT 32\r | |
f02bd376 | 41 | #define KEYBOARD_CONSOLE_IN_DEV_SIGNATURE SIGNATURE_32 ('k', 'k', 'e', 'y')\r |
42 | #define KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE SIGNATURE_32 ('k', 'c', 'e', 'n')\r | |
f3d1e940 | 43 | \r |
44 | typedef struct _KEYBOARD_CONSOLE_IN_EX_NOTIFY {\r | |
45 | UINTN Signature;\r | |
46 | EFI_HANDLE NotifyHandle;\r | |
47 | EFI_KEY_DATA KeyData;\r | |
48 | EFI_KEY_NOTIFY_FUNCTION KeyNotificationFn;\r | |
49 | LIST_ENTRY NotifyEntry;\r | |
50 | } KEYBOARD_CONSOLE_IN_EX_NOTIFY;\r | |
51 | \r | |
05fbd06d | 52 | \r |
53 | typedef struct {\r | |
54 | UINTN Signature;\r | |
55 | \r | |
56 | EFI_HANDLE Handle;\r | |
57 | EFI_SIMPLE_TEXT_INPUT_PROTOCOL ConIn;\r | |
f3d1e940 | 58 | EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL ConInEx;\r |
05fbd06d | 59 | EFI_ISA_IO_PROTOCOL *IsaIo;\r |
60 | \r | |
61 | EFI_EVENT TimerEvent;\r | |
62 | \r | |
63 | UINT32 DataRegisterAddress;\r | |
64 | UINT32 StatusRegisterAddress;\r | |
65 | UINT32 CommandRegisterAddress;\r | |
66 | \r | |
67 | EFI_INPUT_KEY Key;\r | |
f3d1e940 | 68 | EFI_KEY_STATE KeyState;\r |
69 | \r | |
70 | BOOLEAN LeftShift;\r | |
71 | BOOLEAN RightShift; \r | |
72 | BOOLEAN LeftLogo;\r | |
73 | BOOLEAN RightLogo;\r | |
74 | BOOLEAN Menu;\r | |
75 | BOOLEAN SysReq;\r | |
05fbd06d | 76 | \r |
77 | BOOLEAN Ctrl;\r | |
78 | BOOLEAN Alt;\r | |
79 | BOOLEAN Shift;\r | |
80 | BOOLEAN CapsLock;\r | |
81 | BOOLEAN NumLock;\r | |
82 | BOOLEAN ScrollLock;\r | |
83 | \r | |
84 | //\r | |
85 | // Buffer storing key scancodes\r | |
86 | //\r | |
87 | UINT8 ScancodeBuf[KEYBOARD_BUFFER_MAX_COUNT];\r | |
88 | UINT32 ScancodeBufStartPos;\r | |
89 | UINT32 ScancodeBufEndPos;\r | |
90 | UINT32 ScancodeBufCount;\r | |
91 | \r | |
92 | //\r | |
93 | // Indicators of the key pressing state, used in detecting Alt+Ctrl+Del\r | |
94 | //\r | |
95 | BOOLEAN Ctrled;\r | |
96 | BOOLEAN Alted;\r | |
97 | \r | |
98 | //\r | |
99 | // Error state\r | |
100 | //\r | |
101 | BOOLEAN KeyboardErr;\r | |
102 | \r | |
103 | EFI_UNICODE_STRING_TABLE *ControllerNameTable;\r | |
104 | \r | |
105 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
f3d1e940 | 106 | //\r |
107 | // Notification Function List\r | |
108 | //\r | |
109 | LIST_ENTRY NotifyList;\r | |
05fbd06d | 110 | } KEYBOARD_CONSOLE_IN_DEV;\r |
111 | \r | |
112 | #define KEYBOARD_CONSOLE_IN_DEV_FROM_THIS(a) CR (a, KEYBOARD_CONSOLE_IN_DEV, ConIn, KEYBOARD_CONSOLE_IN_DEV_SIGNATURE)\r | |
f3d1e940 | 113 | #define TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS(a) \\r |
114 | CR (a, \\r | |
115 | KEYBOARD_CONSOLE_IN_DEV, \\r | |
116 | ConInEx, \\r | |
117 | KEYBOARD_CONSOLE_IN_DEV_SIGNATURE \\r | |
118 | )\r | |
05fbd06d | 119 | \r |
120 | #define TABLE_END 0x0\r | |
121 | \r | |
122 | //\r | |
123 | // Global Variables\r | |
124 | //\r | |
f3d08ccf | 125 | extern EFI_DRIVER_BINDING_PROTOCOL gKeyboardControllerDriver;\r |
126 | extern EFI_COMPONENT_NAME_PROTOCOL gPs2KeyboardComponentName;\r | |
127 | extern EFI_COMPONENT_NAME2_PROTOCOL gPs2KeyboardComponentName2;\r | |
05fbd06d | 128 | \r |
f3d1e940 | 129 | extern EFI_GUID gSimpleTextInExNotifyGuid;\r |
130 | \r | |
05fbd06d | 131 | //\r |
132 | // Driver entry point\r | |
133 | //\r | |
bcd70414 | 134 | /**\r |
135 | The user Entry Point for module Ps2Keyboard. The user code starts with this function.\r | |
136 | \r | |
137 | @param[in] ImageHandle The firmware allocated handle for the EFI image. \r | |
138 | @param[in] SystemTable A pointer to the EFI System Table.\r | |
139 | \r | |
140 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
141 | @retval other Some error occurs when executing this entry point.\r | |
142 | \r | |
143 | **/\r | |
05fbd06d | 144 | EFI_STATUS\r |
f3d1e940 | 145 | EFIAPI\r |
05fbd06d | 146 | InstallPs2KeyboardDriver (\r |
147 | IN EFI_HANDLE ImageHandle,\r | |
148 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
ed66e1bc | 149 | );\r |
05fbd06d | 150 | \r |
151 | #define KEYBOARD_8042_DATA_REGISTER 0x60\r | |
152 | #define KEYBOARD_8042_STATUS_REGISTER 0x64\r | |
153 | #define KEYBOARD_8042_COMMAND_REGISTER 0x64\r | |
154 | \r | |
155 | #define KEYBOARD_KBEN 0xF4\r | |
156 | #define KEYBOARD_CMDECHO_ACK 0xFA\r | |
157 | \r | |
05f89b17 | 158 | #define KEYBOARD_MAX_TRY 256 // 256\r |
05fbd06d | 159 | #define KEYBOARD_TIMEOUT 65536 // 0.07s\r |
160 | #define KEYBOARD_WAITFORVALUE_TIMEOUT 1000000 // 1s\r | |
161 | #define KEYBOARD_BAT_TIMEOUT 4000000 // 4s\r | |
162 | #define KEYBOARD_TIMER_INTERVAL 200000 // 0.02s\r | |
163 | #define SCANCODE_EXTENDED 0xE0\r | |
164 | #define SCANCODE_EXTENDED1 0xE1\r | |
165 | #define SCANCODE_CTRL_MAKE 0x1D\r | |
166 | #define SCANCODE_CTRL_BREAK 0x9D\r | |
167 | #define SCANCODE_ALT_MAKE 0x38\r | |
168 | #define SCANCODE_ALT_BREAK 0xB8\r | |
169 | #define SCANCODE_LEFT_SHIFT_MAKE 0x2A\r | |
170 | #define SCANCODE_LEFT_SHIFT_BREAK 0xAA\r | |
171 | #define SCANCODE_RIGHT_SHIFT_MAKE 0x36\r | |
172 | #define SCANCODE_RIGHT_SHIFT_BREAK 0xB6\r | |
173 | #define SCANCODE_CAPS_LOCK_MAKE 0x3A\r | |
174 | #define SCANCODE_NUM_LOCK_MAKE 0x45\r | |
175 | #define SCANCODE_SCROLL_LOCK_MAKE 0x46\r | |
f3d1e940 | 176 | #define SCANCODE_LEFT_LOGO_MAKE 0x5B //GUI key defined in Keyboard scan code\r |
177 | #define SCANCODE_LEFT_LOGO_BREAK 0xDB\r | |
178 | #define SCANCODE_RIGHT_LOGO_MAKE 0x5C\r | |
179 | #define SCANCODE_RIGHT_LOGO_BREAK 0xDC\r | |
180 | #define SCANCODE_MENU_MAKE 0x5D //APPS key defined in Keyboard scan code \r | |
181 | #define SCANCODE_MENU_BREAK 0xDD\r | |
182 | #define SCANCODE_SYS_REQ_MAKE 0x37\r | |
183 | #define SCANCODE_MAX_MAKE 0x60\r | |
05fbd06d | 184 | \r |
185 | //\r | |
186 | // Other functions that are used among .c files\r | |
187 | //\r | |
bcd70414 | 188 | /**\r |
189 | Show keyboard status lights according to\r | |
190 | indicators in ConsoleIn.\r | |
191 | \r | |
192 | @param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV\r | |
193 | \r | |
194 | @return status\r | |
f3d1e940 | 195 | \r |
bcd70414 | 196 | **/\r |
f3d1e940 | 197 | EFI_STATUS\r |
198 | UpdateStatusLights (\r | |
199 | IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn\r | |
ed66e1bc | 200 | );\r |
f3d1e940 | 201 | \r |
bcd70414 | 202 | /**\r |
203 | write key to keyboard\r | |
f3d1e940 | 204 | \r |
bcd70414 | 205 | @param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV\r |
206 | @param Data value wanted to be written\r | |
f3d1e940 | 207 | \r |
bcd70414 | 208 | @retval EFI_TIMEOUT - GC_TODO: Add description for return value\r |
209 | @retval EFI_SUCCESS - GC_TODO: Add description for return value\r | |
f3d1e940 | 210 | \r |
bcd70414 | 211 | **/\r |
05fbd06d | 212 | EFI_STATUS\r |
213 | KeyboardRead (\r | |
214 | IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,\r | |
215 | OUT UINT8 *Data\r | |
ed66e1bc | 216 | );\r |
05fbd06d | 217 | \r |
bcd70414 | 218 | /**\r |
219 | Get scancode from scancode buffer\r | |
220 | and translate into EFI-scancode and unicode defined by EFI spec\r | |
221 | The function is always called in TPL_NOTIFY\r | |
05fbd06d | 222 | \r |
bcd70414 | 223 | @param ConsoleIn KEYBOARD_CONSOLE_IN_DEV instance pointer\r |
05fbd06d | 224 | \r |
bcd70414 | 225 | @retval EFI_NOT_READY - Input from console not ready yet.\r |
226 | @retval EFI_SUCCESS - Function executed successfully.\r | |
05fbd06d | 227 | \r |
bcd70414 | 228 | **/\r |
05fbd06d | 229 | EFI_STATUS\r |
230 | KeyGetchar (\r | |
231 | IN OUT KEYBOARD_CONSOLE_IN_DEV *ConsoleIn\r | |
ed66e1bc | 232 | );\r |
05fbd06d | 233 | \r |
bcd70414 | 234 | /**\r |
235 | Perform 8042 controller and keyboard Initialization\r | |
236 | If ExtendedVerification is TRUE, do additional test for\r | |
237 | the keyboard interface\r | |
05fbd06d | 238 | \r |
bcd70414 | 239 | @param ConsoleIn - KEYBOARD_CONSOLE_IN_DEV instance pointer\r |
240 | @param ExtendedVerification - indicates a thorough initialization\r | |
05fbd06d | 241 | \r |
bcd70414 | 242 | @retval EFI_DEVICE_ERROR Fail to init keyboard\r |
243 | @retval EFI_SUCCESS Success to init keyboard\r | |
244 | **/\r | |
05fbd06d | 245 | EFI_STATUS\r |
246 | InitKeyboard (\r | |
247 | IN OUT KEYBOARD_CONSOLE_IN_DEV *ConsoleIn,\r | |
248 | IN BOOLEAN ExtendedVerification\r | |
ed66e1bc | 249 | );\r |
05fbd06d | 250 | \r |
bcd70414 | 251 | /**\r |
252 | Disable the keyboard interface of the 8042 controller\r | |
05fbd06d | 253 | \r |
bcd70414 | 254 | @param ConsoleIn - the device instance\r |
05fbd06d | 255 | \r |
bcd70414 | 256 | @return status of issuing disable command\r |
05fbd06d | 257 | \r |
bcd70414 | 258 | **/\r |
05fbd06d | 259 | EFI_STATUS\r |
260 | DisableKeyboard (\r | |
261 | IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn\r | |
ed66e1bc | 262 | );\r |
05fbd06d | 263 | \r |
bcd70414 | 264 | /**\r |
265 | Timer event handler: read a series of scancodes from 8042\r | |
266 | and put them into memory scancode buffer.\r | |
267 | it read as much scancodes to either fill\r | |
268 | the memory buffer or empty the keyboard buffer.\r | |
269 | It is registered as running under TPL_NOTIFY\r | |
05fbd06d | 270 | \r |
bcd70414 | 271 | @param Event - The timer event\r |
272 | @param Context - A KEYBOARD_CONSOLE_IN_DEV pointer\r | |
05fbd06d | 273 | \r |
bcd70414 | 274 | **/\r |
05fbd06d | 275 | VOID\r |
276 | EFIAPI\r | |
277 | KeyboardTimerHandler (\r | |
278 | IN EFI_EVENT Event,\r | |
279 | IN VOID *Context\r | |
ed66e1bc | 280 | );\r |
05fbd06d | 281 | \r |
bcd70414 | 282 | /**\r |
283 | logic reset keyboard\r | |
284 | Implement SIMPLE_TEXT_IN.Reset()\r | |
285 | Perform 8042 controller and keyboard initialization\r | |
05fbd06d | 286 | \r |
bcd70414 | 287 | @param This Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r |
288 | @param ExtendedVerification Indicate that the driver may perform a more \r | |
289 | exhaustive verification operation of the device during \r | |
290 | reset, now this par is ignored in this driver \r | |
05fbd06d | 291 | \r |
bcd70414 | 292 | **/\r |
05fbd06d | 293 | EFI_STATUS\r |
294 | EFIAPI\r | |
295 | KeyboardEfiReset (\r | |
296 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r | |
297 | IN BOOLEAN ExtendedVerification\r | |
ed66e1bc | 298 | );\r |
05fbd06d | 299 | \r |
bcd70414 | 300 | /**\r |
301 | Implement SIMPLE_TEXT_IN.ReadKeyStroke().\r | |
302 | Retrieve key values for driver user.\r | |
05fbd06d | 303 | \r |
bcd70414 | 304 | @param This Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r |
305 | @param Key The output buffer for key value \r | |
05fbd06d | 306 | \r |
bcd70414 | 307 | @retval EFI_SUCCESS success to read key stroke\r |
308 | **/\r | |
05fbd06d | 309 | EFI_STATUS\r |
310 | EFIAPI\r | |
311 | KeyboardReadKeyStroke (\r | |
312 | IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r | |
313 | OUT EFI_INPUT_KEY *Key\r | |
ed66e1bc | 314 | );\r |
05fbd06d | 315 | \r |
bcd70414 | 316 | /**\r |
317 | Event notification function for SIMPLE_TEXT_IN.WaitForKey event\r | |
318 | Signal the event if there is key available\r | |
05fbd06d | 319 | \r |
bcd70414 | 320 | @param Event the event object\r |
321 | @param Context waitting context\r | |
05fbd06d | 322 | \r |
bcd70414 | 323 | **/\r |
05fbd06d | 324 | VOID\r |
325 | EFIAPI\r | |
326 | KeyboardWaitForKey (\r | |
327 | IN EFI_EVENT Event,\r | |
328 | IN VOID *Context\r | |
ed66e1bc | 329 | );\r |
05fbd06d | 330 | \r |
bcd70414 | 331 | /**\r |
332 | Read status register\r | |
05fbd06d | 333 | \r |
bcd70414 | 334 | @param ConsoleIn Pointer to instance of KEYBOARD_CONSOLE_IN_DEV\r |
05fbd06d | 335 | \r |
bcd70414 | 336 | @return value in status register\r |
05fbd06d | 337 | \r |
bcd70414 | 338 | **/\r |
05fbd06d | 339 | UINT8\r |
340 | KeyReadStatusRegister (\r | |
341 | IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn\r | |
ed66e1bc | 342 | );\r |
05fbd06d | 343 | \r |
344 | /**\r | |
345 | Check whether there is Ps/2 Keyboard device in system by 0xF4 Keyboard Command\r | |
346 | If Keyboard receives 0xF4, it will respond with 'ACK'. If it doesn't respond, the device\r | |
347 | should not be in system.\r | |
348 | \r | |
349 | @param[in] BiosKeyboardPrivate Keyboard Private Data Structure\r | |
350 | \r | |
f3d1e940 | 351 | @retval TRUE Keyboard in System.\r |
352 | @retval FALSE Keyboard not in System.\r | |
05fbd06d | 353 | **/\r |
354 | BOOLEAN\r | |
355 | EFIAPI\r | |
356 | CheckKeyboardConnect (\r | |
357 | IN KEYBOARD_CONSOLE_IN_DEV *ConsoleIn\r | |
ed66e1bc | 358 | );\r |
f3d1e940 | 359 | \r |
bcd70414 | 360 | /**\r |
361 | Event notification function for SIMPLE_TEXT_INPUT_EX_PROTOCOL.WaitForKeyEx event\r | |
362 | Signal the event if there is key available\r | |
363 | \r | |
364 | @param Event event object\r | |
365 | @param Context waiting context\r | |
366 | \r | |
367 | **/\r | |
f3d1e940 | 368 | VOID\r |
369 | EFIAPI\r | |
370 | KeyboardWaitForKeyEx (\r | |
371 | IN EFI_EVENT Event,\r | |
372 | IN VOID *Context\r | |
ed66e1bc | 373 | ); \r |
f3d1e940 | 374 | \r |
375 | //\r | |
376 | // Simple Text Input Ex protocol function prototypes\r | |
377 | //\r | |
378 | \r | |
bcd70414 | 379 | /**\r |
380 | Reset the input device and optionaly run diagnostics\r | |
381 | \r | |
382 | @param This - Protocol instance pointer.\r | |
383 | @param ExtendedVerification - Driver may perform diagnostics on reset.\r | |
384 | \r | |
385 | @retval EFI_SUCCESS - The device was reset.\r | |
386 | @retval EFI_DEVICE_ERROR - The device is not functioning properly and could \r | |
387 | not be reset.\r | |
388 | \r | |
389 | **/\r | |
f3d1e940 | 390 | EFI_STATUS\r |
391 | EFIAPI\r | |
392 | KeyboardEfiResetEx (\r | |
393 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
394 | IN BOOLEAN ExtendedVerification\r | |
ed66e1bc | 395 | );\r |
f3d1e940 | 396 | \r |
bcd70414 | 397 | /**\r |
398 | Reads the next keystroke from the input device. The WaitForKey Event can \r | |
399 | be used to test for existance of a keystroke via WaitForEvent () call.\r | |
f3d1e940 | 400 | \r |
f3d1e940 | 401 | \r |
bcd70414 | 402 | @param This - Protocol instance pointer.\r |
403 | @param KeyData - A pointer to a buffer that is filled in with the keystroke \r | |
404 | state data for the key that was pressed.\r | |
f3d1e940 | 405 | \r |
bcd70414 | 406 | @retval EFI_SUCCESS - The keystroke information was returned.\r |
407 | @retval EFI_NOT_READY - There was no keystroke data availiable.\r | |
408 | @retval EFI_DEVICE_ERROR - The keystroke information was not returned due to \r | |
409 | hardware errors.\r | |
410 | @retval EFI_INVALID_PARAMETER - KeyData is NULL. \r | |
f3d1e940 | 411 | \r |
bcd70414 | 412 | **/\r |
f3d1e940 | 413 | EFI_STATUS\r |
414 | EFIAPI\r | |
415 | KeyboardReadKeyStrokeEx (\r | |
416 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
417 | OUT EFI_KEY_DATA *KeyData\r | |
ed66e1bc | 418 | );\r |
f3d1e940 | 419 | \r |
bcd70414 | 420 | /**\r |
421 | Set certain state for the input device.\r | |
f3d1e940 | 422 | \r |
bcd70414 | 423 | @param This - Protocol instance pointer.\r |
424 | @param KeyToggleState - A pointer to the EFI_KEY_TOGGLE_STATE to set the \r | |
425 | state for the input device.\r | |
f3d1e940 | 426 | \r |
bcd70414 | 427 | @retval EFI_SUCCESS - The device state was set successfully.\r |
428 | @retval EFI_DEVICE_ERROR - The device is not functioning correctly and could \r | |
429 | not have the setting adjusted.\r | |
430 | @retval EFI_UNSUPPORTED - The device does not have the ability to set its state.\r | |
431 | @retval EFI_INVALID_PARAMETER - KeyToggleState is NULL. \r | |
f3d1e940 | 432 | \r |
bcd70414 | 433 | **/\r |
f3d1e940 | 434 | EFI_STATUS\r |
435 | EFIAPI\r | |
436 | KeyboardSetState (\r | |
437 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
438 | IN EFI_KEY_TOGGLE_STATE *KeyToggleState\r | |
ed66e1bc | 439 | );\r |
f3d1e940 | 440 | \r |
bcd70414 | 441 | /**\r |
442 | Register a notification function for a particular keystroke for the input device.\r | |
443 | \r | |
444 | @param This - Protocol instance pointer.\r | |
445 | @param KeyData - A pointer to a buffer that is filled in with the keystroke \r | |
446 | information data for the key that was pressed.\r | |
447 | @param KeyNotificationFunction - Points to the function to be called when the key \r | |
448 | sequence is typed specified by KeyData. \r | |
449 | @param NotifyHandle - Points to the unique handle assigned to the registered notification. \r | |
450 | \r | |
451 | @retval EFI_SUCCESS - The notification function was registered successfully.\r | |
452 | @retval EFI_OUT_OF_RESOURCES - Unable to allocate resources for necesssary data structures.\r | |
453 | @retval EFI_INVALID_PARAMETER - KeyData or NotifyHandle is NULL. \r | |
454 | \r | |
455 | **/ \r | |
f3d1e940 | 456 | EFI_STATUS\r |
457 | EFIAPI\r | |
458 | KeyboardRegisterKeyNotify (\r | |
459 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
460 | IN EFI_KEY_DATA *KeyData,\r | |
461 | IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,\r | |
462 | OUT EFI_HANDLE *NotifyHandle\r | |
ed66e1bc | 463 | );\r |
f3d1e940 | 464 | \r |
bcd70414 | 465 | /**\r |
466 | Remove a registered notification function from a particular keystroke.\r | |
f3d1e940 | 467 | \r |
bcd70414 | 468 | @param This - Protocol instance pointer. \r |
469 | @param NotificationHandle - The handle of the notification function being unregistered.\r | |
f3d1e940 | 470 | \r |
bcd70414 | 471 | \r |
472 | @retval EFI_SUCCESS - The notification function was unregistered successfully.\r | |
473 | @retval EFI_INVALID_PARAMETER - The NotificationHandle is invalid.\r | |
474 | @retval EFI_NOT_FOUND - Can not find the matching entry in database. \r | |
f3d1e940 | 475 | \r |
bcd70414 | 476 | **/ \r |
f3d1e940 | 477 | EFI_STATUS\r |
478 | EFIAPI\r | |
479 | KeyboardUnregisterKeyNotify (\r | |
480 | IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r | |
481 | IN EFI_HANDLE NotificationHandle\r | |
ed66e1bc | 482 | );\r |
f3d1e940 | 483 | \r |
05fbd06d | 484 | #endif\r |