8cd4d17c |
1 | /*++\r |
2 | \r |
3 | Copyright (c) 2006, Intel Corporation. All rights reserved. \r |
4 | This software and associated documentation (if any) is furnished\r |
5 | under a license and may only be used or copied in accordance\r |
6 | with the terms of the license. Except as permitted by such\r |
7 | license, no part of this software or documentation may be\r |
8 | reproduced, stored in a retrieval system, or transmitted in any\r |
9 | form or by any means without the express written consent of\r |
10 | Intel Corporation.\r |
11 | \r |
12 | \r |
13 | Module Name:\r |
14 | \r |
15 | PcRtc.h\r |
16 | \r |
17 | Abstract:\r |
18 | \r |
19 | Include for real time clock driver\r |
20 | \r |
21 | Revision History\r |
22 | \r |
23 | \r |
24 | --*/\r |
25 | \r |
26 | #ifndef _RTC_H_\r |
27 | #define _RTC_H_\r |
28 | \r |
29 | //\r |
30 | // The package level header files this module uses\r |
31 | //\r |
32 | #include <PiDxe.h>\r |
33 | //\r |
34 | // The protocols, PPI and GUID defintions for this module\r |
35 | //\r |
36 | #include <Protocol/RealTimeClock.h>\r |
37 | //\r |
38 | // The Library classes this module consumes\r |
39 | //\r |
40 | #include <Library/BaseLib.h>\r |
41 | #include <Library/DebugLib.h>\r |
42 | #include <Library/UefiLib.h>\r |
43 | #include <Library/BaseMemoryLib.h>\r |
44 | #include <Library/IoLib.h>\r |
45 | #include <Library/TimerLib.h>\r |
46 | #include <Library/UefiDriverEntryPoint.h>\r |
47 | #include <Library/UefiBootServicesTableLib.h>\r |
48 | #include <Library/UefiRuntimeLib.h>\r |
49 | #include <Library/UefiRuntimeServicesTableLib.h>\r |
50 | \r |
51 | \r |
52 | typedef struct {\r |
53 | EFI_LOCK RtcLock;\r |
54 | UINT16 SavedTimeZone;\r |
55 | UINT8 Daylight;\r |
56 | } PC_RTC_MODULE_GLOBALS;\r |
57 | \r |
58 | #define PCAT_RTC_ADDRESS_REGISTER 0x70\r |
59 | #define PCAT_RTC_DATA_REGISTER 0x71\r |
60 | \r |
61 | //\r |
62 | // Dallas DS12C887 Real Time Clock\r |
63 | //\r |
64 | #define RTC_ADDRESS_SECONDS 0 // R/W Range 0..59\r |
65 | #define RTC_ADDRESS_SECONDS_ALARM 1 // R/W Range 0..59\r |
66 | #define RTC_ADDRESS_MINUTES 2 // R/W Range 0..59\r |
67 | #define RTC_ADDRESS_MINUTES_ALARM 3 // R/W Range 0..59\r |
68 | #define RTC_ADDRESS_HOURS 4 // R/W Range 1..12 or 0..23 Bit 7 is AM/PM\r |
69 | #define RTC_ADDRESS_HOURS_ALARM 5 // R/W Range 1..12 or 0..23 Bit 7 is AM/PM\r |
70 | #define RTC_ADDRESS_DAY_OF_THE_WEEK 6 // R/W Range 1..7\r |
71 | #define RTC_ADDRESS_DAY_OF_THE_MONTH 7 // R/W Range 1..31\r |
72 | #define RTC_ADDRESS_MONTH 8 // R/W Range 1..12\r |
73 | #define RTC_ADDRESS_YEAR 9 // R/W Range 0..99\r |
74 | #define RTC_ADDRESS_REGISTER_A 10 // R/W[0..6] R0[7]\r |
75 | #define RTC_ADDRESS_REGISTER_B 11 // R/W\r |
76 | #define RTC_ADDRESS_REGISTER_C 12 // RO\r |
77 | #define RTC_ADDRESS_REGISTER_D 13 // RO\r |
78 | #define RTC_ADDRESS_CENTURY 50 // R/W Range 19..20 Bit 8 is R/W\r |
79 | //\r |
80 | // Date and time initial values.\r |
81 | // They are used if the RTC values are invalid during driver initialization\r |
82 | //\r |
83 | #define RTC_INIT_SECOND 0\r |
84 | #define RTC_INIT_MINUTE 0\r |
85 | #define RTC_INIT_HOUR 0\r |
86 | #define RTC_INIT_DAY 1\r |
87 | #define RTC_INIT_MONTH 1\r |
88 | #define RTC_INIT_YEAR 2001\r |
89 | \r |
90 | //\r |
91 | // Register initial values\r |
92 | //\r |
93 | #define RTC_INIT_REGISTER_A 0x26\r |
94 | #define RTC_INIT_REGISTER_B 0x02\r |
95 | #define RTC_INIT_REGISTER_D 0x0\r |
96 | \r |
97 | #pragma pack(1)\r |
98 | //\r |
99 | // Register A\r |
100 | //\r |
101 | typedef struct {\r |
102 | UINT8 RS : 4; // Rate Selection Bits\r |
103 | UINT8 DV : 3; // Divisor\r |
104 | UINT8 UIP : 1; // Update in progress\r |
105 | } RTC_REGISTER_A_BITS;\r |
106 | \r |
107 | typedef union {\r |
108 | RTC_REGISTER_A_BITS Bits;\r |
109 | UINT8 Data;\r |
110 | } RTC_REGISTER_A;\r |
111 | \r |
112 | //\r |
113 | // Register B\r |
114 | //\r |
115 | typedef struct {\r |
116 | UINT8 DSE : 1; // 0 - Daylight saving disabled 1 - Daylight savings enabled\r |
117 | UINT8 MIL : 1; // 0 - 12 hour mode 1 - 24 hour mode\r |
118 | UINT8 DM : 1; // 0 - BCD Format 1 - Binary Format\r |
119 | UINT8 SQWE : 1; // 0 - Disable SQWE output 1 - Enable SQWE output\r |
120 | UINT8 UIE : 1; // 0 - Update INT disabled 1 - Update INT enabled\r |
121 | UINT8 AIE : 1; // 0 - Alarm INT disabled 1 - Alarm INT Enabled\r |
122 | UINT8 PIE : 1; // 0 - Periodic INT disabled 1 - Periodic INT Enabled\r |
123 | UINT8 SET : 1; // 0 - Normal operation. 1 - Updates inhibited\r |
124 | } RTC_REGISTER_B_BITS;\r |
125 | \r |
126 | typedef union {\r |
127 | RTC_REGISTER_B_BITS Bits;\r |
128 | UINT8 Data;\r |
129 | } RTC_REGISTER_B;\r |
130 | \r |
131 | //\r |
132 | // Register C\r |
133 | //\r |
134 | typedef struct {\r |
135 | UINT8 Reserved : 4; // Read as zero. Can not be written.\r |
136 | UINT8 UF : 1; // Update End Interrupt Flag\r |
137 | UINT8 AF : 1; // Alarm Interrupt Flag\r |
138 | UINT8 PF : 1; // Periodic Interrupt Flag\r |
139 | UINT8 IRQF : 1; // Iterrupt Request Flag = PF & PIE | AF & AIE | UF & UIE\r |
140 | } RTC_REGISTER_C_BITS;\r |
141 | \r |
142 | typedef union {\r |
143 | RTC_REGISTER_C_BITS Bits;\r |
144 | UINT8 Data;\r |
145 | } RTC_REGISTER_C;\r |
146 | \r |
147 | //\r |
148 | // Register D\r |
149 | //\r |
150 | typedef struct {\r |
151 | UINT8 Reserved : 7; // Read as zero. Can not be written.\r |
152 | UINT8 VRT : 1; // Valid RAM and Time\r |
153 | } RTC_REGISTER_D_BITS;\r |
154 | \r |
155 | typedef union {\r |
156 | RTC_REGISTER_D_BITS Bits;\r |
157 | UINT8 Data;\r |
158 | } RTC_REGISTER_D;\r |
159 | \r |
160 | #pragma pack()\r |
161 | \r |
162 | EFI_STATUS\r |
163 | PcRtcInit (\r |
164 | IN PC_RTC_MODULE_GLOBALS *Global\r |
165 | )\r |
166 | /*++\r |
167 | \r |
168 | Routine Description:\r |
169 | \r |
170 | GC_TODO: Add function description\r |
171 | \r |
172 | Arguments:\r |
173 | \r |
174 | Global - GC_TODO: add argument description\r |
175 | \r |
176 | Returns:\r |
177 | \r |
178 | GC_TODO: add return values\r |
179 | \r |
180 | --*/\r |
181 | ;\r |
182 | \r |
183 | EFI_STATUS\r |
184 | PcRtcSetTime (\r |
185 | IN EFI_TIME *Time,\r |
186 | IN PC_RTC_MODULE_GLOBALS *Global\r |
187 | )\r |
188 | /*++\r |
189 | \r |
190 | Routine Description:\r |
191 | \r |
192 | GC_TODO: Add function description\r |
193 | \r |
194 | Arguments:\r |
195 | \r |
196 | Time - GC_TODO: add argument description\r |
197 | Global - GC_TODO: add argument description\r |
198 | \r |
199 | Returns:\r |
200 | \r |
201 | GC_TODO: add return values\r |
202 | \r |
203 | --*/\r |
204 | ;\r |
205 | \r |
206 | EFI_STATUS\r |
207 | PcRtcGetTime (\r |
208 | OUT EFI_TIME *Time,\r |
209 | IN EFI_TIME_CAPABILITIES *Capabilities,\r |
210 | IN PC_RTC_MODULE_GLOBALS *Global\r |
211 | )\r |
212 | /*++\r |
213 | \r |
214 | Routine Description:\r |
215 | \r |
216 | GC_TODO: Add function description\r |
217 | \r |
218 | Arguments:\r |
219 | \r |
220 | Time - GC_TODO: add argument description\r |
221 | Capabilities - GC_TODO: add argument description\r |
222 | Global - GC_TODO: add argument description\r |
223 | \r |
224 | Returns:\r |
225 | \r |
226 | GC_TODO: add return values\r |
227 | \r |
228 | --*/\r |
229 | ;\r |
230 | \r |
231 | EFI_STATUS\r |
232 | PcRtcSetWakeupTime (\r |
233 | IN BOOLEAN Enable,\r |
234 | OUT EFI_TIME *Time,\r |
235 | IN PC_RTC_MODULE_GLOBALS *Global\r |
236 | )\r |
237 | /*++\r |
238 | \r |
239 | Routine Description:\r |
240 | \r |
241 | GC_TODO: Add function description\r |
242 | \r |
243 | Arguments:\r |
244 | \r |
245 | Enable - GC_TODO: add argument description\r |
246 | Time - GC_TODO: add argument description\r |
247 | Global - GC_TODO: add argument description\r |
248 | \r |
249 | Returns:\r |
250 | \r |
251 | GC_TODO: add return values\r |
252 | \r |
253 | --*/\r |
254 | ;\r |
255 | \r |
256 | EFI_STATUS\r |
257 | PcRtcGetWakeupTime (\r |
258 | OUT BOOLEAN *Enabled,\r |
259 | OUT BOOLEAN *Pending,\r |
260 | OUT EFI_TIME *Time,\r |
261 | IN PC_RTC_MODULE_GLOBALS *Global\r |
262 | )\r |
263 | /*++\r |
264 | \r |
265 | Routine Description:\r |
266 | \r |
267 | GC_TODO: Add function description\r |
268 | \r |
269 | Arguments:\r |
270 | \r |
271 | Enabled - GC_TODO: add argument description\r |
272 | Pending - GC_TODO: add argument description\r |
273 | Time - GC_TODO: add argument description\r |
274 | Global - GC_TODO: add argument description\r |
275 | \r |
276 | Returns:\r |
277 | \r |
278 | GC_TODO: add return values\r |
279 | \r |
280 | --*/\r |
281 | ;\r |
282 | \r |
283 | EFI_STATUS\r |
284 | EFIAPI\r |
285 | InitializePcRtc (\r |
286 | IN EFI_HANDLE ImageHandle,\r |
287 | IN EFI_SYSTEM_TABLE *SystemTable\r |
288 | )\r |
289 | /*++\r |
290 | \r |
291 | Routine Description:\r |
292 | \r |
293 | GC_TODO: Add function description\r |
294 | \r |
295 | Arguments:\r |
296 | \r |
297 | ImageHandle - GC_TODO: add argument description\r |
298 | SystemTable - GC_TODO: add argument description\r |
299 | \r |
300 | Returns:\r |
301 | \r |
302 | GC_TODO: add return values\r |
303 | \r |
304 | --*/\r |
305 | ;\r |
306 | \r |
307 | UINT8\r |
308 | BcdToDecimal (\r |
309 | IN UINT8 BcdValue\r |
310 | )\r |
311 | /*++\r |
312 | \r |
313 | Routine Description:\r |
314 | \r |
315 | GC_TODO: Add function description\r |
316 | \r |
317 | Arguments:\r |
318 | \r |
319 | BcdValue - GC_TODO: add argument description\r |
320 | \r |
321 | Returns:\r |
322 | \r |
323 | GC_TODO: add return values\r |
324 | \r |
325 | --*/\r |
326 | ;\r |
327 | \r |
328 | EFI_STATUS\r |
329 | RtcTimeFieldsValid (\r |
330 | IN EFI_TIME *Time\r |
331 | )\r |
332 | /*++\r |
333 | \r |
334 | Routine Description:\r |
335 | \r |
336 | GC_TODO: Add function description\r |
337 | \r |
338 | Arguments:\r |
339 | \r |
340 | Time - GC_TODO: add argument description\r |
341 | \r |
342 | Returns:\r |
343 | \r |
344 | GC_TODO: add return values\r |
345 | \r |
346 | --*/\r |
347 | ;\r |
348 | \r |
349 | UINT8\r |
350 | DecimaltoBcd (\r |
351 | IN UINT8 DecValue\r |
352 | )\r |
353 | /*++\r |
354 | \r |
355 | Routine Description:\r |
356 | \r |
357 | GC_TODO: Add function description\r |
358 | \r |
359 | Arguments:\r |
360 | \r |
361 | DecValue - GC_TODO: add argument description\r |
362 | \r |
363 | Returns:\r |
364 | \r |
365 | GC_TODO: add return values\r |
366 | \r |
367 | --*/\r |
368 | ;\r |
369 | \r |
370 | VOID\r |
371 | ConvertEfiTimeToRtcTime (\r |
372 | IN EFI_TIME *Time,\r |
373 | IN RTC_REGISTER_B RegisterB,\r |
374 | IN UINT8 *Century\r |
375 | )\r |
376 | /*++\r |
377 | \r |
378 | Routine Description:\r |
379 | \r |
380 | GC_TODO: Add function description\r |
381 | \r |
382 | Arguments:\r |
383 | \r |
384 | Time - GC_TODO: add argument description\r |
385 | RegisterB - GC_TODO: add argument description\r |
386 | Century - GC_TODO: add argument description\r |
387 | \r |
388 | Returns:\r |
389 | \r |
390 | GC_TODO: add return values\r |
391 | \r |
392 | --*/\r |
393 | ;\r |
394 | \r |
395 | EFI_STATUS\r |
396 | RtcTestCenturyRegister (\r |
397 | VOID\r |
398 | )\r |
399 | /*++\r |
400 | \r |
401 | Routine Description:\r |
402 | \r |
403 | GC_TODO: Add function description\r |
404 | \r |
405 | Arguments:\r |
406 | \r |
407 | None\r |
408 | \r |
409 | Returns:\r |
410 | \r |
411 | GC_TODO: add return values\r |
412 | \r |
413 | --*/\r |
414 | ;\r |
415 | \r |
416 | VOID\r |
417 | ConvertRtcTimeToEfiTime (\r |
418 | IN EFI_TIME *Time,\r |
419 | IN RTC_REGISTER_B RegisterB\r |
420 | )\r |
421 | /*++\r |
422 | \r |
423 | Routine Description:\r |
424 | \r |
425 | GC_TODO: Add function description\r |
426 | \r |
427 | Arguments:\r |
428 | \r |
429 | Time - GC_TODO: add argument description\r |
430 | RegisterB - GC_TODO: add argument description\r |
431 | \r |
432 | Returns:\r |
433 | \r |
434 | GC_TODO: add return values\r |
435 | \r |
436 | --*/\r |
437 | ;\r |
438 | \r |
439 | EFI_STATUS\r |
440 | RtcWaitToUpdate (\r |
441 | UINTN Timeout\r |
442 | )\r |
443 | /*++\r |
444 | \r |
445 | Routine Description:\r |
446 | \r |
447 | GC_TODO: Add function description\r |
448 | \r |
449 | Arguments:\r |
450 | \r |
451 | Timeout - GC_TODO: add argument description\r |
452 | \r |
453 | Returns:\r |
454 | \r |
455 | GC_TODO: add return values\r |
456 | \r |
457 | --*/\r |
458 | ;\r |
459 | \r |
460 | UINT8\r |
461 | RtcSaveContext (\r |
462 | IN PC_RTC_MODULE_GLOBALS *Global\r |
463 | )\r |
464 | /*++\r |
465 | \r |
466 | Routine Description:\r |
467 | \r |
468 | GC_TODO: Add function description\r |
469 | \r |
470 | Arguments:\r |
471 | \r |
472 | Global - GC_TODO: add argument description\r |
473 | \r |
474 | Returns:\r |
475 | \r |
476 | GC_TODO: add return values\r |
477 | \r |
478 | --*/\r |
479 | ;\r |
480 | \r |
481 | VOID\r |
482 | RtcRestoreContext (\r |
483 | IN UINT8 SavedAddressRegister,\r |
484 | IN PC_RTC_MODULE_GLOBALS *Global\r |
485 | )\r |
486 | /*++\r |
487 | \r |
488 | Routine Description:\r |
489 | \r |
490 | GC_TODO: Add function description\r |
491 | \r |
492 | Arguments:\r |
493 | \r |
494 | SavedAddressRegister - GC_TODO: add argument description\r |
495 | Global - GC_TODO: add argument description\r |
496 | \r |
497 | Returns:\r |
498 | \r |
499 | GC_TODO: add return values\r |
500 | \r |
501 | --*/\r |
502 | ;\r |
503 | \r |
504 | BOOLEAN\r |
505 | DayValid (\r |
506 | IN EFI_TIME *Time\r |
507 | );\r |
508 | \r |
509 | BOOLEAN\r |
510 | IsLeapYear (\r |
511 | IN EFI_TIME *Time\r |
512 | );\r |
513 | \r |
514 | #endif\r |