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172870ef | 1 | /** @file\r |
2 | PS2 Mouse Communication Interface.\r | |
f8cd287b | 3 | \r |
180a5a35 HT |
4 | Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>\r |
5 | This program and the accompanying materials\r | |
92a428e1 | 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 | |
05fbd06d | 9 | \r |
92a428e1 | 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 |
f8cd287b | 13 | **/\r |
05fbd06d | 14 | \r |
05fbd06d | 15 | #include "Ps2Mouse.h"\r |
16 | #include "CommPs2.h"\r | |
17 | \r | |
3ae99102 | 18 | UINT8 SampleRateTbl[MaxSampleRate] = { 0xa, 0x14, 0x28, 0x3c, 0x50, 0x64, 0xc8 };\r |
05fbd06d | 19 | \r |
3ae99102 | 20 | UINT8 ResolutionTbl[MaxResolution] = { 0, 1, 2, 3 };\r |
05fbd06d | 21 | \r |
ff1fcef8 | 22 | /**\r |
23 | Issue self test command via IsaIo interface.\r | |
24 | \r | |
25 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
26 | \r | |
27 | @return EFI_SUCCESS Success to do keyboard self testing.\r | |
28 | @return others Fail to do keyboard self testing.\r | |
29 | **/\r | |
05fbd06d | 30 | EFI_STATUS\r |
31 | KbcSelfTest (\r | |
32 | IN EFI_ISA_IO_PROTOCOL *IsaIo\r | |
33 | )\r | |
05fbd06d | 34 | {\r |
35 | EFI_STATUS Status;\r | |
36 | UINT8 Data;\r | |
37 | \r | |
38 | //\r | |
39 | // Keyboard controller self test\r | |
40 | //\r | |
41 | Status = Out8042Command (IsaIo, SELF_TEST);\r | |
42 | if (EFI_ERROR (Status)) {\r | |
43 | return Status;\r | |
44 | }\r | |
45 | //\r | |
46 | // Read return code\r | |
47 | //\r | |
48 | Status = In8042Data (IsaIo, &Data);\r | |
49 | if (EFI_ERROR (Status)) {\r | |
50 | return Status;\r | |
51 | }\r | |
52 | \r | |
53 | if (Data != 0x55) {\r | |
54 | return EFI_DEVICE_ERROR;\r | |
55 | }\r | |
56 | //\r | |
57 | // Set system flag\r | |
58 | //\r | |
59 | Status = Out8042Command (IsaIo, READ_CMD_BYTE);\r | |
60 | if (EFI_ERROR (Status)) {\r | |
61 | return Status;\r | |
62 | }\r | |
63 | \r | |
64 | Status = In8042Data (IsaIo, &Data);\r | |
65 | if (EFI_ERROR (Status)) {\r | |
66 | return Status;\r | |
67 | }\r | |
68 | \r | |
69 | Status = Out8042Command (IsaIo, WRITE_CMD_BYTE);\r | |
70 | if (EFI_ERROR (Status)) {\r | |
71 | return Status;\r | |
72 | }\r | |
73 | \r | |
74 | Data |= CMD_SYS_FLAG;\r | |
75 | Status = Out8042Data (IsaIo, Data);\r | |
76 | if (EFI_ERROR (Status)) {\r | |
77 | return Status;\r | |
78 | }\r | |
79 | \r | |
80 | return EFI_SUCCESS;\r | |
81 | }\r | |
82 | \r | |
ff1fcef8 | 83 | /**\r |
84 | Issue command to enable keyboard AUX functionality.\r | |
85 | \r | |
86 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
87 | \r | |
88 | @return Status of command issuing.\r | |
89 | **/\r | |
05fbd06d | 90 | EFI_STATUS\r |
91 | KbcEnableAux (\r | |
92 | IN EFI_ISA_IO_PROTOCOL *IsaIo\r | |
93 | )\r | |
05fbd06d | 94 | {\r |
95 | //\r | |
96 | // Send 8042 enable mouse command\r | |
97 | //\r | |
98 | return Out8042Command (IsaIo, ENABLE_AUX);\r | |
99 | }\r | |
100 | \r | |
ff1fcef8 | 101 | /**\r |
102 | Issue command to disable keyboard AUX functionality.\r | |
103 | \r | |
104 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
105 | \r | |
106 | @return Status of command issuing.\r | |
107 | **/\r | |
05fbd06d | 108 | EFI_STATUS\r |
109 | KbcDisableAux (\r | |
110 | IN EFI_ISA_IO_PROTOCOL *IsaIo\r | |
111 | )\r | |
05fbd06d | 112 | {\r |
113 | //\r | |
114 | // Send 8042 disable mouse command\r | |
115 | //\r | |
116 | return Out8042Command (IsaIo, DISABLE_AUX);\r | |
117 | }\r | |
118 | \r | |
ff1fcef8 | 119 | /**\r |
120 | Issue command to enable keyboard.\r | |
121 | \r | |
122 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
123 | \r | |
124 | @return Status of command issuing.\r | |
125 | **/\r | |
05fbd06d | 126 | EFI_STATUS\r |
127 | KbcEnableKb (\r | |
128 | IN EFI_ISA_IO_PROTOCOL *IsaIo\r | |
129 | )\r | |
05fbd06d | 130 | {\r |
131 | //\r | |
132 | // Send 8042 enable keyboard command\r | |
133 | //\r | |
134 | return Out8042Command (IsaIo, ENABLE_KB);\r | |
135 | }\r | |
136 | \r | |
ff1fcef8 | 137 | /**\r |
138 | Issue command to disable keyboard.\r | |
139 | \r | |
140 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
141 | \r | |
142 | @return Status of command issuing.\r | |
143 | **/\r | |
05fbd06d | 144 | EFI_STATUS\r |
145 | KbcDisableKb (\r | |
146 | IN EFI_ISA_IO_PROTOCOL *IsaIo\r | |
147 | )\r | |
05fbd06d | 148 | {\r |
149 | //\r | |
150 | // Send 8042 disable keyboard command\r | |
151 | //\r | |
152 | return Out8042Command (IsaIo, DISABLE_KB);\r | |
153 | }\r | |
154 | \r | |
ff1fcef8 | 155 | /**\r |
156 | Issue command to check keyboard status.\r | |
157 | \r | |
158 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
159 | @param KeyboardEnable return whether keyboard is enable.\r | |
160 | \r | |
161 | @return Status of command issuing.\r | |
162 | **/\r | |
05fbd06d | 163 | EFI_STATUS\r |
164 | CheckKbStatus (\r | |
165 | IN EFI_ISA_IO_PROTOCOL *IsaIo,\r | |
166 | OUT BOOLEAN *KeyboardEnable\r | |
167 | )\r | |
05fbd06d | 168 | {\r |
169 | EFI_STATUS Status;\r | |
170 | UINT8 Data;\r | |
171 | \r | |
172 | //\r | |
173 | // Send command to read KBC command byte\r | |
174 | //\r | |
175 | Status = Out8042Command (IsaIo, READ_CMD_BYTE);\r | |
176 | if (EFI_ERROR (Status)) {\r | |
177 | return Status;\r | |
178 | }\r | |
179 | \r | |
180 | Status = In8042Data (IsaIo, &Data);\r | |
181 | if (EFI_ERROR (Status)) {\r | |
182 | return Status;\r | |
183 | }\r | |
184 | //\r | |
185 | // Check keyboard enable or not\r | |
186 | //\r | |
187 | if ((Data & CMD_KB_STS) == CMD_KB_DIS) {\r | |
188 | *KeyboardEnable = FALSE;\r | |
189 | } else {\r | |
190 | *KeyboardEnable = TRUE;\r | |
191 | }\r | |
192 | \r | |
193 | return EFI_SUCCESS;\r | |
194 | }\r | |
195 | \r | |
ff1fcef8 | 196 | /**\r |
197 | Issue command to reset keyboard.\r | |
198 | \r | |
199 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
200 | \r | |
201 | @return Status of command issuing.\r | |
202 | **/\r | |
05fbd06d | 203 | EFI_STATUS\r |
204 | PS2MouseReset (\r | |
205 | IN EFI_ISA_IO_PROTOCOL *IsaIo\r | |
206 | )\r | |
05fbd06d | 207 | {\r |
208 | EFI_STATUS Status;\r | |
209 | UINT8 Data;\r | |
210 | \r | |
211 | Status = Out8042AuxCommand (IsaIo, RESET_CMD, FALSE);\r | |
212 | if (EFI_ERROR (Status)) {\r | |
213 | return Status;\r | |
214 | }\r | |
215 | \r | |
216 | Status = In8042AuxData (IsaIo, &Data);\r | |
217 | if (EFI_ERROR (Status)) {\r | |
218 | return Status;\r | |
219 | }\r | |
220 | //\r | |
221 | // Check BAT Complete Code\r | |
222 | //\r | |
223 | if (Data != PS2MOUSE_BAT1) {\r | |
224 | return EFI_DEVICE_ERROR;\r | |
225 | }\r | |
226 | \r | |
227 | Status = In8042AuxData (IsaIo, &Data);\r | |
228 | if (EFI_ERROR (Status)) {\r | |
229 | return Status;\r | |
230 | }\r | |
231 | //\r | |
232 | // Check BAT Complete Code\r | |
233 | //\r | |
234 | if (Data != PS2MOUSE_BAT2) {\r | |
235 | return EFI_DEVICE_ERROR;\r | |
236 | }\r | |
237 | \r | |
238 | return EFI_SUCCESS;\r | |
239 | }\r | |
240 | \r | |
ff1fcef8 | 241 | /**\r |
242 | Issue command to set mouse's sample rate\r | |
243 | \r | |
244 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
245 | @param SampleRate value of sample rate \r | |
246 | \r | |
247 | @return Status of command issuing.\r | |
248 | **/\r | |
05fbd06d | 249 | EFI_STATUS\r |
250 | PS2MouseSetSampleRate (\r | |
251 | IN EFI_ISA_IO_PROTOCOL *IsaIo,\r | |
252 | IN MOUSE_SR SampleRate\r | |
253 | )\r | |
05fbd06d | 254 | {\r |
255 | EFI_STATUS Status;\r | |
256 | \r | |
257 | //\r | |
258 | // Send auxiliary command to set mouse sample rate\r | |
259 | //\r | |
260 | Status = Out8042AuxCommand (IsaIo, SETSR_CMD, FALSE);\r | |
261 | if (EFI_ERROR (Status)) {\r | |
262 | return Status;\r | |
263 | }\r | |
264 | \r | |
265 | Status = Out8042AuxData (IsaIo, SampleRateTbl[SampleRate]);\r | |
266 | \r | |
267 | return Status;\r | |
268 | }\r | |
269 | \r | |
ff1fcef8 | 270 | /**\r |
271 | Issue command to set mouse's resolution.\r | |
272 | \r | |
273 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
274 | @param Resolution value of resolution\r | |
275 | \r | |
276 | @return Status of command issuing.\r | |
277 | **/\r | |
05fbd06d | 278 | EFI_STATUS\r |
279 | PS2MouseSetResolution (\r | |
280 | IN EFI_ISA_IO_PROTOCOL *IsaIo,\r | |
281 | IN MOUSE_RE Resolution\r | |
282 | )\r | |
05fbd06d | 283 | {\r |
284 | EFI_STATUS Status;\r | |
285 | \r | |
286 | //\r | |
287 | // Send auxiliary command to set mouse resolution\r | |
288 | //\r | |
289 | Status = Out8042AuxCommand (IsaIo, SETRE_CMD, FALSE);\r | |
290 | if (EFI_ERROR (Status)) {\r | |
291 | return Status;\r | |
292 | }\r | |
293 | \r | |
294 | Status = Out8042AuxData (IsaIo, ResolutionTbl[Resolution]);\r | |
295 | \r | |
296 | return Status;\r | |
297 | }\r | |
298 | \r | |
ff1fcef8 | 299 | /**\r |
300 | Issue command to set mouse's scaling.\r | |
301 | \r | |
302 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
303 | @param Scaling value of scaling\r | |
304 | \r | |
305 | @return Status of command issuing.\r | |
306 | **/\r | |
05fbd06d | 307 | EFI_STATUS\r |
308 | PS2MouseSetScaling (\r | |
309 | IN EFI_ISA_IO_PROTOCOL *IsaIo,\r | |
310 | IN MOUSE_SF Scaling\r | |
311 | )\r | |
05fbd06d | 312 | {\r |
313 | UINT8 Command;\r | |
314 | \r | |
f66d00ca | 315 | Command = (UINT8) (Scaling == Scaling1 ? SETSF1_CMD : SETSF2_CMD);\r |
05fbd06d | 316 | \r |
317 | //\r | |
318 | // Send auxiliary command to set mouse scaling data\r | |
319 | //\r | |
320 | return Out8042AuxCommand (IsaIo, Command, FALSE);\r | |
321 | }\r | |
322 | \r | |
ff1fcef8 | 323 | /**\r |
324 | Issue command to enable Ps2 mouse.\r | |
325 | \r | |
326 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
327 | \r | |
328 | @return Status of command issuing.\r | |
329 | **/\r | |
05fbd06d | 330 | EFI_STATUS\r |
331 | PS2MouseEnable (\r | |
332 | IN EFI_ISA_IO_PROTOCOL *IsaIo\r | |
333 | )\r | |
05fbd06d | 334 | {\r |
335 | //\r | |
336 | // Send auxiliary command to enable mouse\r | |
337 | //\r | |
338 | return Out8042AuxCommand (IsaIo, ENABLE_CMD, FALSE);\r | |
339 | }\r | |
340 | \r | |
bcd70414 | 341 | /**\r |
05fbd06d | 342 | Get mouse packet . Only care first 3 bytes\r |
343 | \r | |
ff1fcef8 | 344 | @param MouseDev Pointer of PS2 Mouse Private Data Structure \r |
05fbd06d | 345 | \r |
ff1fcef8 | 346 | @retval EFI_NOT_READY Mouse Device not ready to input data packet, or some error happened during getting the packet\r |
347 | @retval EFI_SUCCESS The data packet is gotten successfully.\r | |
05fbd06d | 348 | \r |
bcd70414 | 349 | **/\r |
ff1fcef8 | 350 | EFI_STATUS\r |
351 | PS2MouseGetPacket (\r | |
352 | PS2_MOUSE_DEV *MouseDev\r | |
353 | )\r | |
354 | \r | |
05fbd06d | 355 | {\r |
356 | EFI_STATUS Status;\r | |
357 | BOOLEAN KeyboardEnable;\r | |
358 | UINT8 Packet[PS2_PACKET_LENGTH];\r | |
359 | UINT8 Data;\r | |
360 | UINTN Count;\r | |
361 | UINTN State;\r | |
362 | INT16 RelativeMovementX;\r | |
363 | INT16 RelativeMovementY;\r | |
364 | BOOLEAN LButton;\r | |
365 | BOOLEAN RButton;\r | |
366 | \r | |
367 | KeyboardEnable = FALSE;\r | |
368 | Count = 1;\r | |
369 | State = PS2_READ_BYTE_ONE;\r | |
370 | \r | |
371 | //\r | |
372 | // State machine to get mouse packet\r | |
373 | //\r | |
374 | while (1) {\r | |
375 | \r | |
376 | switch (State) {\r | |
377 | case PS2_READ_BYTE_ONE:\r | |
378 | //\r | |
379 | // Read mouse first byte data, if failed, immediately return\r | |
380 | //\r | |
381 | KbcDisableAux (MouseDev->IsaIo);\r | |
382 | Status = PS2MouseRead (MouseDev->IsaIo, &Data, &Count, State);\r | |
383 | if (EFI_ERROR (Status)) {\r | |
384 | KbcEnableAux (MouseDev->IsaIo);\r | |
385 | return EFI_NOT_READY;\r | |
386 | }\r | |
387 | \r | |
388 | if (Count != 1) {\r | |
389 | KbcEnableAux (MouseDev->IsaIo);\r | |
390 | return EFI_NOT_READY;\r | |
391 | }\r | |
392 | \r | |
393 | if (IS_PS2_SYNC_BYTE (Data)) {\r | |
394 | Packet[0] = Data;\r | |
395 | State = PS2_READ_DATA_BYTE;\r | |
396 | \r | |
397 | CheckKbStatus (MouseDev->IsaIo, &KeyboardEnable);\r | |
398 | KbcDisableKb (MouseDev->IsaIo);\r | |
399 | KbcEnableAux (MouseDev->IsaIo);\r | |
400 | }\r | |
401 | break;\r | |
402 | \r | |
403 | case PS2_READ_DATA_BYTE:\r | |
404 | Count = 2;\r | |
405 | Status = PS2MouseRead (MouseDev->IsaIo, (Packet + 1), &Count, State);\r | |
406 | if (EFI_ERROR (Status)) {\r | |
407 | if (KeyboardEnable) {\r | |
408 | KbcEnableKb (MouseDev->IsaIo);\r | |
409 | }\r | |
410 | \r | |
411 | return EFI_NOT_READY;\r | |
412 | }\r | |
413 | \r | |
414 | if (Count != 2) {\r | |
415 | if (KeyboardEnable) {\r | |
416 | KbcEnableKb (MouseDev->IsaIo);\r | |
417 | }\r | |
418 | \r | |
419 | return EFI_NOT_READY;\r | |
420 | }\r | |
421 | \r | |
422 | State = PS2_PROCESS_PACKET;\r | |
423 | break;\r | |
424 | \r | |
425 | case PS2_PROCESS_PACKET:\r | |
426 | if (KeyboardEnable) {\r | |
427 | KbcEnableKb (MouseDev->IsaIo);\r | |
428 | }\r | |
429 | //\r | |
430 | // Decode the packet\r | |
431 | //\r | |
432 | RelativeMovementX = Packet[1];\r | |
433 | RelativeMovementY = Packet[2];\r | |
434 | //\r | |
435 | // Bit 7 | Bit 6 | Bit 5 | Bit 4 | Bit 3 | Bit 2 | Bit 1 | Bit 0 \r | |
436 | // Byte 0 | Y overflow | X overflow | Y sign bit | X sign bit | Always 1 | Middle Btn | Right Btn | Left Btn \r | |
437 | // Byte 1 | 8 bit X Movement \r | |
438 | // Byte 2 | 8 bit Y Movement \r | |
439 | // \r | |
440 | // X sign bit + 8 bit X Movement : 9-bit signed twos complement integer that presents the relative displacement of the device in the X direction since the last data transmission.\r | |
441 | // Y sign bit + 8 bit Y Movement : Same as X sign bit + 8 bit X Movement.\r | |
442 | //\r | |
443 | //\r | |
444 | // First, Clear X and Y high 8 bits\r | |
445 | //\r | |
446 | RelativeMovementX = (INT16) (RelativeMovementX & 0xFF); \r | |
447 | RelativeMovementY = (INT16) (RelativeMovementY & 0xFF); \r | |
448 | //\r | |
449 | // Second, if the 9-bit signed twos complement integer is negative, set the high 8 bit 0xff\r | |
450 | //\r | |
451 | if ((Packet[0] & 0x10) != 0) {\r | |
452 | RelativeMovementX = (INT16) (RelativeMovementX | 0xFF00);\r | |
453 | }\r | |
454 | if ((Packet[0] & 0x20) != 0) {\r | |
455 | RelativeMovementY = (INT16) (RelativeMovementY | 0xFF00);\r | |
456 | }\r | |
457 | \r | |
458 | \r | |
459 | RButton = (UINT8) (Packet[0] & 0x2);\r | |
460 | LButton = (UINT8) (Packet[0] & 0x1);\r | |
461 | \r | |
462 | //\r | |
463 | // Update mouse state\r | |
464 | //\r | |
465 | MouseDev->State.RelativeMovementX += RelativeMovementX;\r | |
466 | MouseDev->State.RelativeMovementY -= RelativeMovementY;\r | |
467 | MouseDev->State.RightButton = (UINT8) (RButton ? TRUE : FALSE);\r | |
468 | MouseDev->State.LeftButton = (UINT8) (LButton ? TRUE : FALSE);\r | |
469 | MouseDev->StateChanged = TRUE;\r | |
470 | \r | |
471 | return EFI_SUCCESS;\r | |
472 | }\r | |
473 | }\r | |
474 | }\r | |
475 | \r | |
ff1fcef8 | 476 | /**\r |
477 | Read data via IsaIo protocol with given number.\r | |
478 | \r | |
479 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
480 | @param Buffer Buffer receive data of mouse\r | |
481 | @param BufSize The size of buffer\r | |
482 | @param State Check input or read data\r | |
483 | \r | |
484 | @return status of reading mouse data.\r | |
485 | **/\r | |
05fbd06d | 486 | EFI_STATUS\r |
487 | PS2MouseRead (\r | |
488 | IN EFI_ISA_IO_PROTOCOL *IsaIo,\r | |
489 | OUT VOID *Buffer,\r | |
490 | IN OUT UINTN *BufSize,\r | |
491 | IN UINTN State\r | |
492 | )\r | |
05fbd06d | 493 | {\r |
494 | EFI_STATUS Status;\r | |
495 | UINTN BytesRead;\r | |
496 | \r | |
497 | Status = EFI_SUCCESS;\r | |
498 | BytesRead = 0;\r | |
499 | \r | |
500 | if (State == PS2_READ_BYTE_ONE) {\r | |
501 | //\r | |
502 | // Check input for mouse\r | |
503 | //\r | |
504 | Status = CheckForInput (IsaIo);\r | |
505 | \r | |
506 | if (EFI_ERROR (Status)) {\r | |
507 | return Status;\r | |
508 | }\r | |
509 | }\r | |
510 | \r | |
511 | while (BytesRead < *BufSize) {\r | |
512 | \r | |
513 | Status = WaitOutputFull (IsaIo, TIMEOUT);\r | |
514 | if (EFI_ERROR (Status)) {\r | |
515 | break;\r | |
516 | }\r | |
517 | \r | |
518 | IsaIo->Io.Read (IsaIo, EfiIsaIoWidthUint8, KBC_DATA_PORT, 1, Buffer);\r | |
519 | \r | |
520 | BytesRead++;\r | |
521 | Buffer = (UINT8 *) Buffer + 1;\r | |
522 | }\r | |
523 | //\r | |
524 | // Verify the correct number of bytes read\r | |
525 | //\r | |
526 | if (BytesRead == 0 || BytesRead != *BufSize) {\r | |
527 | Status = EFI_NOT_FOUND;\r | |
528 | }\r | |
529 | \r | |
530 | *BufSize = BytesRead;\r | |
531 | return Status;\r | |
532 | }\r | |
533 | //\r | |
534 | // 8042 I/O function\r | |
535 | //\r | |
ff1fcef8 | 536 | /**\r |
537 | I/O work flow of outing 8042 command.\r | |
538 | \r | |
539 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
540 | @param Command I/O command.\r | |
541 | \r | |
542 | @retval EFI_SUCCESS Success to excute I/O work flow\r | |
543 | @retval EFI_TIMEOUT Keyboard controller time out.\r | |
544 | **/\r | |
05fbd06d | 545 | EFI_STATUS\r |
546 | Out8042Command (\r | |
547 | IN EFI_ISA_IO_PROTOCOL *IsaIo,\r | |
548 | IN UINT8 Command\r | |
549 | )\r | |
05fbd06d | 550 | {\r |
551 | EFI_STATUS Status;\r | |
552 | UINT8 Data;\r | |
553 | \r | |
554 | //\r | |
555 | // Wait keyboard controller input buffer empty\r | |
556 | //\r | |
557 | Status = WaitInputEmpty (IsaIo, TIMEOUT);\r | |
558 | if (EFI_ERROR (Status)) {\r | |
559 | return Status;\r | |
560 | }\r | |
561 | //\r | |
562 | // Send command\r | |
563 | //\r | |
564 | Data = Command;\r | |
565 | IsaIo->Io.Write (IsaIo, EfiIsaIoWidthUint8, KBC_CMD_STS_PORT, 1, &Data);\r | |
566 | \r | |
567 | Status = WaitInputEmpty (IsaIo, TIMEOUT);\r | |
568 | if (EFI_ERROR (Status)) {\r | |
569 | return Status;\r | |
570 | }\r | |
571 | \r | |
572 | return EFI_SUCCESS;\r | |
573 | }\r | |
574 | \r | |
ff1fcef8 | 575 | /**\r |
576 | I/O work flow of outing 8042 data.\r | |
577 | \r | |
578 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
579 | @param Data Data value\r | |
580 | \r | |
581 | @retval EFI_SUCCESS Success to excute I/O work flow\r | |
582 | @retval EFI_TIMEOUT Keyboard controller time out.\r | |
583 | **/\r | |
05fbd06d | 584 | EFI_STATUS\r |
585 | Out8042Data (\r | |
586 | IN EFI_ISA_IO_PROTOCOL *IsaIo,\r | |
587 | IN UINT8 Data\r | |
588 | )\r | |
05fbd06d | 589 | {\r |
590 | EFI_STATUS Status;\r | |
172870ef | 591 | UINT8 Temp;\r |
05fbd06d | 592 | //\r |
593 | // Wait keyboard controller input buffer empty\r | |
594 | //\r | |
595 | Status = WaitInputEmpty (IsaIo, TIMEOUT);\r | |
596 | if (EFI_ERROR (Status)) {\r | |
597 | return Status;\r | |
598 | }\r | |
599 | \r | |
172870ef | 600 | Temp = Data;\r |
601 | IsaIo->Io.Write (IsaIo, EfiIsaIoWidthUint8, KBC_DATA_PORT, 1, &Temp);\r | |
05fbd06d | 602 | \r |
603 | Status = WaitInputEmpty (IsaIo, TIMEOUT);\r | |
604 | if (EFI_ERROR (Status)) {\r | |
605 | return Status;\r | |
606 | }\r | |
607 | \r | |
608 | return EFI_SUCCESS;\r | |
609 | }\r | |
610 | \r | |
ff1fcef8 | 611 | /**\r |
612 | I/O work flow of in 8042 data.\r | |
613 | \r | |
614 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
615 | @param Data Data value\r | |
616 | \r | |
617 | @retval EFI_SUCCESS Success to excute I/O work flow\r | |
618 | @retval EFI_TIMEOUT Keyboard controller time out.\r | |
619 | **/\r | |
05fbd06d | 620 | EFI_STATUS\r |
621 | In8042Data (\r | |
622 | IN EFI_ISA_IO_PROTOCOL *IsaIo,\r | |
623 | IN OUT UINT8 *Data\r | |
624 | )\r | |
05fbd06d | 625 | {\r |
626 | UINTN Delay;\r | |
172870ef | 627 | UINT8 Temp;\r |
05fbd06d | 628 | \r |
629 | Delay = TIMEOUT / 50;\r | |
630 | \r | |
631 | do {\r | |
172870ef | 632 | IsaIo->Io.Read (IsaIo, EfiIsaIoWidthUint8, KBC_CMD_STS_PORT, 1, &Temp);\r |
05fbd06d | 633 | \r |
634 | //\r | |
635 | // Check keyboard controller status bit 0(output buffer status)\r | |
636 | //\r | |
172870ef | 637 | if ((Temp & KBC_OUTB) == KBC_OUTB) {\r |
05fbd06d | 638 | break;\r |
639 | }\r | |
640 | \r | |
641 | gBS->Stall (50);\r | |
642 | Delay--;\r | |
172870ef | 643 | } while (Delay != 0);\r |
05fbd06d | 644 | \r |
645 | if (Delay == 0) {\r | |
646 | return EFI_TIMEOUT;\r | |
647 | }\r | |
648 | \r | |
649 | IsaIo->Io.Read (IsaIo, EfiIsaIoWidthUint8, KBC_DATA_PORT, 1, Data);\r | |
650 | \r | |
651 | return EFI_SUCCESS;\r | |
652 | }\r | |
653 | \r | |
ff1fcef8 | 654 | /**\r |
655 | I/O work flow of outing 8042 Aux command.\r | |
656 | \r | |
657 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
658 | @param Command Aux I/O command\r | |
659 | @param Resend Whether need resend the Aux command.\r | |
660 | \r | |
661 | @retval EFI_SUCCESS Success to excute I/O work flow\r | |
662 | @retval EFI_TIMEOUT Keyboard controller time out.\r | |
663 | **/\r | |
05fbd06d | 664 | EFI_STATUS\r |
665 | Out8042AuxCommand (\r | |
666 | IN EFI_ISA_IO_PROTOCOL *IsaIo,\r | |
667 | IN UINT8 Command,\r | |
668 | IN BOOLEAN Resend\r | |
669 | )\r | |
05fbd06d | 670 | {\r |
671 | EFI_STATUS Status;\r | |
672 | UINT8 Data;\r | |
673 | \r | |
674 | //\r | |
675 | // Wait keyboard controller input buffer empty\r | |
676 | //\r | |
677 | Status = WaitInputEmpty (IsaIo, TIMEOUT);\r | |
678 | if (EFI_ERROR (Status)) {\r | |
679 | return Status;\r | |
680 | }\r | |
681 | //\r | |
682 | // Send write to auxiliary device command\r | |
683 | //\r | |
684 | Data = WRITE_AUX_DEV;\r | |
685 | IsaIo->Io.Write (IsaIo, EfiIsaIoWidthUint8, KBC_CMD_STS_PORT, 1, &Data);\r | |
686 | \r | |
687 | Status = WaitInputEmpty (IsaIo, TIMEOUT);\r | |
688 | if (EFI_ERROR (Status)) {\r | |
689 | return Status;\r | |
690 | }\r | |
691 | //\r | |
692 | // Send auxiliary device command\r | |
693 | //\r | |
694 | IsaIo->Io.Write (IsaIo, EfiIsaIoWidthUint8, KBC_DATA_PORT, 1, &Command);\r | |
695 | \r | |
696 | //\r | |
697 | // Read return code\r | |
698 | //\r | |
699 | Status = In8042AuxData (IsaIo, &Data);\r | |
700 | if (EFI_ERROR (Status)) {\r | |
701 | return Status;\r | |
702 | }\r | |
703 | \r | |
704 | if (Data == PS2_ACK) {\r | |
705 | //\r | |
706 | // Receive mouse acknowledge, command send success\r | |
707 | //\r | |
708 | return EFI_SUCCESS;\r | |
709 | \r | |
710 | } else if (Resend) {\r | |
711 | //\r | |
712 | // Resend fail\r | |
713 | //\r | |
714 | return EFI_DEVICE_ERROR;\r | |
715 | \r | |
716 | } else if (Data == PS2_RESEND) {\r | |
717 | //\r | |
718 | // Resend command\r | |
719 | //\r | |
720 | Status = Out8042AuxCommand (IsaIo, Command, TRUE);\r | |
721 | if (EFI_ERROR (Status)) {\r | |
722 | return Status;\r | |
723 | }\r | |
724 | \r | |
725 | } else {\r | |
726 | //\r | |
727 | // Invalid return code\r | |
728 | //\r | |
729 | return EFI_DEVICE_ERROR;\r | |
730 | \r | |
731 | }\r | |
732 | \r | |
733 | return EFI_SUCCESS;\r | |
734 | }\r | |
735 | \r | |
ff1fcef8 | 736 | /**\r |
737 | I/O work flow of outing 8042 Aux data.\r | |
738 | \r | |
739 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
172870ef | 740 | @param Data Buffer holding return value\r |
ff1fcef8 | 741 | \r |
742 | @retval EFI_SUCCESS Success to excute I/O work flow\r | |
743 | @retval EFI_TIMEOUT Keyboard controller time out.\r | |
744 | **/\r | |
05fbd06d | 745 | EFI_STATUS\r |
746 | Out8042AuxData (\r | |
747 | IN EFI_ISA_IO_PROTOCOL *IsaIo,\r | |
748 | IN UINT8 Data\r | |
749 | )\r | |
05fbd06d | 750 | {\r |
751 | EFI_STATUS Status;\r | |
752 | UINT8 Temp;\r | |
753 | //\r | |
754 | // Wait keyboard controller input buffer empty\r | |
755 | //\r | |
756 | Status = WaitInputEmpty (IsaIo, TIMEOUT);\r | |
757 | if (EFI_ERROR (Status)) {\r | |
758 | return Status;\r | |
759 | }\r | |
760 | //\r | |
761 | // Send write to auxiliary device command\r | |
762 | //\r | |
763 | Temp = WRITE_AUX_DEV;\r | |
764 | IsaIo->Io.Write (IsaIo, EfiIsaIoWidthUint8, KBC_CMD_STS_PORT, 1, &Temp);\r | |
765 | \r | |
766 | Status = WaitInputEmpty (IsaIo, TIMEOUT);\r | |
767 | if (EFI_ERROR (Status)) {\r | |
768 | return Status;\r | |
769 | }\r | |
770 | \r | |
771 | Temp = Data;\r | |
772 | IsaIo->Io.Write (IsaIo, EfiIsaIoWidthUint8, KBC_DATA_PORT, 1, &Temp);\r | |
773 | \r | |
774 | Status = WaitInputEmpty (IsaIo, TIMEOUT);\r | |
775 | if (EFI_ERROR (Status)) {\r | |
776 | return Status;\r | |
777 | }\r | |
778 | \r | |
779 | return EFI_SUCCESS;\r | |
780 | }\r | |
781 | \r | |
ff1fcef8 | 782 | /**\r |
783 | I/O work flow of in 8042 Aux data.\r | |
784 | \r | |
785 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
786 | @param Data Buffer holding return value.\r | |
787 | \r | |
788 | @retval EFI_SUCCESS Success to excute I/O work flow\r | |
789 | @retval EFI_TIMEOUT Keyboard controller time out.\r | |
790 | **/\r | |
05fbd06d | 791 | EFI_STATUS\r |
792 | In8042AuxData (\r | |
793 | IN EFI_ISA_IO_PROTOCOL *IsaIo,\r | |
794 | IN OUT UINT8 *Data\r | |
795 | )\r | |
05fbd06d | 796 | {\r |
797 | EFI_STATUS Status;\r | |
798 | \r | |
799 | //\r | |
800 | // wait for output data\r | |
801 | //\r | |
802 | Status = WaitOutputFull (IsaIo, BAT_TIMEOUT);\r | |
803 | if (EFI_ERROR (Status)) {\r | |
804 | return Status;\r | |
805 | }\r | |
806 | \r | |
807 | IsaIo->Io.Read (IsaIo, EfiIsaIoWidthUint8, KBC_DATA_PORT, 1, Data);\r | |
808 | \r | |
809 | return EFI_SUCCESS;\r | |
810 | }\r | |
811 | \r | |
ff1fcef8 | 812 | \r |
813 | /**\r | |
172870ef | 814 | Check keyboard controller status, if it is output buffer full and for auxiliary device.\r |
ff1fcef8 | 815 | \r |
816 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
817 | \r | |
818 | @retval EFI_SUCCESS Keyboard controller is ready\r | |
819 | @retval EFI_NOT_READY Keyboard controller is not ready\r | |
820 | **/\r | |
05fbd06d | 821 | EFI_STATUS\r |
822 | CheckForInput (\r | |
823 | IN EFI_ISA_IO_PROTOCOL *IsaIo\r | |
824 | )\r | |
05fbd06d | 825 | {\r |
826 | UINT8 Data;\r | |
827 | \r | |
828 | IsaIo->Io.Read (IsaIo, EfiIsaIoWidthUint8, KBC_CMD_STS_PORT, 1, &Data);\r | |
829 | \r | |
830 | //\r | |
831 | // Check keyboard controller status, if it is output buffer full and for auxiliary device\r | |
832 | //\r | |
833 | if ((Data & (KBC_OUTB | KBC_AUXB)) != (KBC_OUTB | KBC_AUXB)) {\r | |
834 | return EFI_NOT_READY;\r | |
835 | }\r | |
836 | \r | |
837 | return EFI_SUCCESS;\r | |
838 | }\r | |
839 | \r | |
ff1fcef8 | 840 | /**\r |
841 | I/O work flow to wait input buffer empty in given time.\r | |
842 | \r | |
843 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
844 | @param Timeout Wating time.\r | |
845 | \r | |
846 | @retval EFI_TIMEOUT if input is still not empty in given time.\r | |
847 | @retval EFI_SUCCESS input is empty.\r | |
848 | **/\r | |
05fbd06d | 849 | EFI_STATUS\r |
850 | WaitInputEmpty (\r | |
851 | IN EFI_ISA_IO_PROTOCOL *IsaIo,\r | |
852 | IN UINTN Timeout\r | |
853 | )\r | |
05fbd06d | 854 | {\r |
855 | UINTN Delay;\r | |
856 | UINT8 Data;\r | |
857 | \r | |
858 | Delay = Timeout / 50;\r | |
859 | \r | |
860 | do {\r | |
861 | IsaIo->Io.Read (IsaIo, EfiIsaIoWidthUint8, KBC_CMD_STS_PORT, 1, &Data);\r | |
862 | \r | |
863 | //\r | |
864 | // Check keyboard controller status bit 1(input buffer status)\r | |
865 | //\r | |
866 | if ((Data & KBC_INPB) == 0) {\r | |
867 | break;\r | |
868 | }\r | |
869 | \r | |
870 | gBS->Stall (50);\r | |
871 | Delay--;\r | |
172870ef | 872 | } while (Delay != 0);\r |
05fbd06d | 873 | \r |
874 | if (Delay == 0) {\r | |
875 | return EFI_TIMEOUT;\r | |
876 | }\r | |
877 | \r | |
878 | return EFI_SUCCESS;\r | |
879 | }\r | |
880 | \r | |
ff1fcef8 | 881 | /**\r |
882 | I/O work flow to wait output buffer full in given time.\r | |
883 | \r | |
884 | @param IsaIo Pointer to instance of EFI_ISA_IO_PROTOCOL\r | |
885 | @param Timeout given time\r | |
886 | \r | |
887 | @retval EFI_TIMEOUT output is not full in given time\r | |
888 | @retval EFI_SUCCESS output is full in given time.\r | |
889 | **/\r | |
05fbd06d | 890 | EFI_STATUS\r |
891 | WaitOutputFull (\r | |
892 | IN EFI_ISA_IO_PROTOCOL *IsaIo,\r | |
893 | IN UINTN Timeout\r | |
894 | )\r | |
05fbd06d | 895 | {\r |
896 | UINTN Delay;\r | |
897 | UINT8 Data;\r | |
898 | \r | |
899 | Delay = Timeout / 50;\r | |
900 | \r | |
901 | do {\r | |
902 | IsaIo->Io.Read (IsaIo, EfiIsaIoWidthUint8, KBC_CMD_STS_PORT, 1, &Data);\r | |
903 | \r | |
904 | //\r | |
905 | // Check keyboard controller status bit 0(output buffer status)\r | |
906 | // & bit5(output buffer for auxiliary device)\r | |
907 | //\r | |
908 | if ((Data & (KBC_OUTB | KBC_AUXB)) == (KBC_OUTB | KBC_AUXB)) {\r | |
909 | break;\r | |
910 | }\r | |
911 | \r | |
912 | gBS->Stall (50);\r | |
913 | Delay--;\r | |
172870ef | 914 | } while (Delay != 0);\r |
05fbd06d | 915 | \r |
916 | if (Delay == 0) {\r | |
917 | return EFI_TIMEOUT;\r | |
918 | }\r | |
919 | \r | |
920 | return EFI_SUCCESS;\r | |
921 | }\r |