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d1f95000 1/** @file\r
2 The file defines the protocol to obtain input from the\r
3 ConsoleIn device. The EFI specification requires that the\r
4 EFI_SIMPLE_TEXT_INPUT_PROTOCOL supports the same languages as\r
5 the corresponding\r
6\r
4ca9b6c4 7 Copyright (c) 2006 - 2008, Intel Corporation \r
d1f95000 8 All rights reserved. This program and the accompanying materials \r
9 are licensed and made available under the terms and conditions of the BSD License \r
10 which accompanies this distribution. The full text of the license may be found at \r
11 http://opensource.org/licenses/bsd-license.php \r
12\r
13 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
14 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
15\r
d1f95000 16**/\r
17\r
18#ifndef __SIMPLE_TEXT_IN_EX_H__\r
19#define __SIMPLE_TEXT_IN_EX_H__\r
20\r
3f748e52 21#include <ProcessorBind.h>\r
22#include <Pi/PiMultiPhase.h>\r
23\r
d1f95000 24#define EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID \\r
25 {0xdd9e7534, 0x7762, 0x4698, { 0x8c, 0x14, 0xf5, 0x85, 0x17, 0xa6, 0x25, 0xaa } }\r
26\r
27\r
28typedef struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL;\r
29\r
30/**\r
31 The Reset() function resets the input device hardware. As part\r
32 of initialization process, the firmware/device will make a quick\r
33 but reasonable attempt to verify that the device is functioning.\r
34 If the ExtendedVerification flag is TRUE the firmware may take\r
35 an extended amount of time to verify the device is operating on\r
36 reset. Otherwise the reset operation is to occur as quickly as\r
37 possible. The hardware verification process is not defined by\r
38 this specification and is left up to the platform firmware or\r
39 driver to implement.\r
40\r
4ca9b6c4 41 @param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
d1f95000 42\r
43 @param ExtendedVerification Indicates that the driver may\r
44 perform a more exhaustive\r
45 verification operation of the\r
46 device during reset.\r
47\r
48\r
4ca9b6c4 49 @retval EFI_SUCCESS The device was reset.\r
d1f95000 50 \r
51 @retval EFI_DEVICE_ERROR The device is not functioning\r
52 correctly and could not be reset.\r
53\r
54**/\r
55typedef\r
56EFI_STATUS\r
8b13229b 57(EFIAPI *EFI_INPUT_RESET_EX)(\r
85f74a01 58 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
59 IN BOOLEAN ExtendedVerification\r
d1f95000 60);\r
61\r
62\r
63//\r
64// EFI_KEY_TOGGLE_STATE\r
65//\r
85f74a01 66typedef UINT8 EFI_KEY_TOGGLE_STATE;\r
d1f95000 67\r
68/**\r
69 Definition of EFI_KEY_STATE\r
70\r
71 @param KeyShiftState Reflects the currently pressed shift\r
72 modifiers for the input device. The\r
73 returned value is valid only if the high\r
74 order bit has been set.\r
75\r
76 @param KeyToggleState Reflects the current internal state of\r
77 various toggled attributes. The returned\r
78 value is valid only if the high order\r
79 bit has been set.\r
80\r
81**/\r
82typedef struct _EFI_KEY_STATE {\r
83 UINT32 KeyShiftState;\r
84 EFI_KEY_TOGGLE_STATE KeyToggleState;\r
85} EFI_KEY_STATE;\r
86\r
87/**\r
88 Definition of EFI_KEY_DATA.\r
89\r
4ca9b6c4
LG
90 @param Key The EFI scan code and Unicode value returned from\r
91 the input device.\r
d1f95000 92\r
93 @param KeyState The current state of various toggled\r
94 attributes as well as input modifier values.\r
95\r
96**/\r
97typedef struct {\r
98 EFI_INPUT_KEY Key;\r
99 EFI_KEY_STATE KeyState;\r
100} EFI_KEY_DATA;\r
101\r
d1f95000 102//\r
103// Any Shift or Toggle State that is valid should have\r
104// high order bit set.\r
105//\r
85f74a01 106// Shift state\r
107//\r
108#define EFI_SHIFT_STATE_VALID 0x80000000\r
109#define EFI_RIGHT_SHIFT_PRESSED 0x00000001\r
110#define EFI_LEFT_SHIFT_PRESSED 0x00000002\r
111#define EFI_RIGHT_CONTROL_PRESSED 0x00000004\r
112#define EFI_LEFT_CONTROL_PRESSED 0x00000008\r
113#define EFI_RIGHT_ALT_PRESSED 0x00000010\r
114#define EFI_LEFT_ALT_PRESSED 0x00000020\r
115#define EFI_RIGHT_LOGO_PRESSED 0x00000040\r
116#define EFI_LEFT_LOGO_PRESSED 0x00000080\r
117#define EFI_MENU_KEY_PRESSED 0x00000100\r
118#define EFI_SYS_REQ_PRESSED 0x00000200\r
119\r
120// \r
121// Toggle state \r
122// \r
123#define EFI_TOGGLE_STATE_VALID 0x80\r
124#define EFI_SCROLL_LOCK_ACTIVE 0x01\r
125#define EFI_NUM_LOCK_ACTIVE 0x02\r
126#define EFI_CAPS_LOCK_ACTIVE 0x04\r
127 \r
128// \r
129// EFI Scan codes \r
130// \r
131#define SCAN_F13 0x0068\r
132#define SCAN_F14 0x0069\r
133#define SCAN_F15 0x006A\r
134#define SCAN_F16 0x006B\r
135#define SCAN_F17 0x006C\r
136#define SCAN_F18 0x006D\r
137#define SCAN_F19 0x006E\r
138#define SCAN_F20 0x006F\r
139#define SCAN_F21 0x0070\r
140#define SCAN_F22 0x0071\r
141#define SCAN_F23 0x0072\r
142#define SCAN_F24 0x0073\r
143#define SCAN_MUTE 0x007F\r
144#define SCAN_VOLUME_UP 0x0080\r
145#define SCAN_VOLUME_DOWN 0x0081\r
146#define SCAN_BRIGHTNESS_UP 0x0100\r
147#define SCAN_BRIGHTNESS_DOWN 0x0101\r
148#define SCAN_SUSPEND 0x0102\r
149#define SCAN_HIBERNATE 0x0103\r
150#define SCAN_TOGGLE_DISPLAY 0x0104\r
151#define SCAN_RECOVERY 0x0105\r
152#define SCAN_EJECT 0x0106\r
d1f95000 153\r
154/**\r
155 The function reads the next keystroke from the input device. If\r
156 there is no pending keystroke the function returns\r
157 EFI_NOT_READY. If there is a pending keystroke, then\r
158 KeyData.Key.ScanCode is the EFI scan code defined in Error!\r
159 Reference source not found.. The KeyData.Key.UnicodeChar is the\r
160 actual printable character or is zero if the key does not\r
161 represent a printable character (control key, function key,\r
162 etc.). The KeyData.KeyState is shift state for the character\r
163 reflected in KeyData.Key.UnicodeChar or KeyData.Key.ScanCode .\r
164 When interpreting the data from this function, it should be\r
165 noted that if a class of printable characters that are\r
166 normally adjusted by shift modifiers (e.g. Shift Key + "f"\r
167 key) would be presented solely as a KeyData.Key.UnicodeChar\r
168 without the associated shift state. So in the previous example\r
169 of a Shift Key + "f" key being pressed, the only pertinent\r
170 data returned would be KeyData.Key.UnicodeChar with the value\r
171 of "F". This of course would not typically be the case for\r
172 non-printable characters such as the pressing of the Right\r
173 Shift Key + F10 key since the corresponding returned data\r
174 would be reflected both in the KeyData.KeyState.KeyShiftState\r
175 and KeyData.Key.ScanCode values. UEFI drivers which implement\r
176 the EFI_SIMPLE_TEXT_INPUT_EX protocol are required to return\r
177 KeyData.Key and KeyData.KeyState values. These drivers must\r
178 always return the most current state of\r
179 KeyData.KeyState.KeyShiftState and\r
180 KeyData.KeyState.KeyToggleState. It should also be noted that\r
181 certain input devices may not be able to produce shift or toggle\r
182 state information, and in those cases the high order bit in the\r
183 respective Toggle and Shift state fields should not be active.\r
184\r
185 \r
4ca9b6c4 186 @param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
d1f95000 187\r
188 @param KeyData A pointer to a buffer that is filled in with\r
189 the keystroke state data for the key that was\r
190 pressed.\r
191\r
192 \r
193 @retval EFI_SUCCESS The keystroke information was\r
194 returned.\r
195 \r
196 @retval EFI_NOT_READY There was no keystroke data available.\r
197 EFI_DEVICE_ERROR The keystroke\r
198 information was not returned due to\r
199 hardware errors.\r
200\r
201\r
202**/\r
203typedef\r
204EFI_STATUS\r
8b13229b 205(EFIAPI *EFI_INPUT_READ_KEY_EX)(\r
85f74a01 206 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
207 OUT EFI_KEY_DATA *KeyData\r
d1f95000 208);\r
209\r
210/**\r
211 The SetState() function allows the input device hardware to\r
212 have state settings adjusted.\r
213 \r
4ca9b6c4 214 @param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
d1f95000 215 \r
216 @param KeyToggleState Pointer to the EFI_KEY_TOGGLE_STATE to\r
217 set the state for the input device.\r
218 \r
219 \r
4ca9b6c4 220 @retval EFI_SUCCESS The device state was set appropriately.\r
d1f95000 221\r
222 @retval EFI_DEVICE_ERROR The device is not functioning\r
223 correctly and could not have the\r
224 setting adjusted.\r
225\r
226 @retval EFI_UNSUPPORTED The device does not support the\r
227 ability to have its state set.\r
228\r
229**/\r
230typedef\r
231EFI_STATUS\r
8b13229b 232(EFIAPI *EFI_SET_STATE)(\r
85f74a01 233 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
234 IN EFI_KEY_TOGGLE_STATE *KeyToggleState\r
d1f95000 235);\r
236\r
237//\r
238// EFI_KEY_NOTIFY\r
239//\r
240typedef\r
241EFI_STATUS\r
8b13229b 242(EFIAPI *EFI_KEY_NOTIFY_FUNCTION)(\r
85f74a01 243 IN EFI_KEY_DATA *KeyData\r
d1f95000 244);\r
245\r
246/**\r
247 The RegisterKeystrokeNotify() function registers a function\r
248 which will be called when a specified keystroke will occur.\r
249 \r
4ca9b6c4 250 @param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
d1f95000 251 \r
4ca9b6c4
LG
252 @param KeyData A pointer to a buffer that is filled in with\r
253 the keystroke information for the key that was\r
254 pressed.\r
d1f95000 255 \r
256 @param KeyNotificationFunction Points to the function to be\r
257 called when the key sequence\r
258 is typed specified by KeyData.\r
259 \r
260 \r
4ca9b6c4
LG
261 @param NotifyHandle Points to the unique handle assigned to\r
262 the registered notification.\r
d1f95000 263 \r
264 @retval EFI_SUCCESS The device state was set\r
265 appropriately.\r
266\r
267 @retval EFI_OUT_OF_RESOURCES Unable to allocate necessary\r
268 data structures.\r
269\r
270**/\r
271typedef\r
272EFI_STATUS\r
8b13229b 273(EFIAPI *EFI_REGISTER_KEYSTROKE_NOTIFY)(\r
85f74a01 274 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
275 IN EFI_KEY_DATA *KeyData,\r
276 IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,\r
277 OUT EFI_HANDLE *NotifyHandle\r
d1f95000 278);\r
279\r
280/**\r
281 The UnregisterKeystrokeNotify() function removes the\r
282 notification which was previously registered.\r
283 \r
4ca9b6c4 284 @param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.\r
d1f95000 285 \r
286 @param NotificationHandle The handle of the notification\r
287 function being unregistered.\r
288 \r
289 @retval EFI_SUCCESS The device state was set appropriately.\r
290 \r
291 @retval EFI_INVALID_PARAMETER The NotificationHandle is\r
292 invalid.\r
293\r
294**/\r
295typedef\r
296EFI_STATUS\r
8b13229b 297(EFIAPI *EFI_UNREGISTER_KEYSTROKE_NOTIFY)(\r
85f74a01 298 IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
299 IN EFI_HANDLE NotificationHandle\r
d1f95000 300);\r
301\r
302\r
303/**\r
304 The EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL is used on the ConsoleIn\r
305 device. It is an extension to the Simple Text Input protocol\r
306 which allows a variety of extended shift state information to be\r
307 returned.\r
308\r
4ca9b6c4
LG
309 @param Reset \r
310 Reset the ConsoleIn device. See Reset().\r
d1f95000 311\r
4ca9b6c4
LG
312 @param ReadKeyStrokeEx \r
313 Returns the next input character.\r
d1f95000 314\r
4ca9b6c4
LG
315 @param WaitForKeyEx \r
316 Event to use with WaitForEvent() to wait for a key to be available.\r
d1f95000 317\r
4ca9b6c4
LG
318 @param SetState \r
319 Set the EFI_KEY_TOGGLE_STATE state settings for the input device.\r
d1f95000 320\r
4ca9b6c4
LG
321 @param RegisterKeyNotify \r
322 Register a notification function to be called when a given key sequence is hit.\r
d1f95000 323\r
4ca9b6c4
LG
324 @param UnregisterKeyNotifyRemoves \r
325 A specific notification function.\r
d1f95000 326\r
327**/\r
328struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL{\r
329 EFI_INPUT_RESET_EX Reset;\r
330 EFI_INPUT_READ_KEY_EX ReadKeyStrokeEx;\r
331 EFI_EVENT WaitForKeyEx;\r
332 EFI_SET_STATE SetState;\r
333 EFI_REGISTER_KEYSTROKE_NOTIFY RegisterKeyNotify;\r
334 EFI_UNREGISTER_KEYSTROKE_NOTIFY UnregisterKeyNotify;\r
335};\r
336\r
337\r
338extern EFI_GUID gEfiSimpleTextInputExProtocolGuid;\r
339\r
340#endif\r
341\r