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1 | /*++\r |
2 | \r | |
3 | Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved\r | |
4 | \r | |
5 | This program and the accompanying materials are licensed and made available under\r | |
6 | the terms and conditions of the BSD License that accompanies this distribution.\r | |
7 | 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 | |
12 | \r | |
13 | \r | |
14 | \r | |
15 | Module Name:\r | |
16 | \r | |
17 | HwWatchdogTimer.h\r | |
18 | \r | |
19 | Abstract:\r | |
20 | \r | |
21 | \r | |
22 | --*/\r | |
23 | \r | |
24 | #ifndef __EFI_WATCHDOG_TIMER_DRIVER_PROTOCOL_H__\r | |
25 | #define __EFI_WATCHDOG_TIMER_DRIVER_PROTOCOL_H__\r | |
26 | \r | |
27 | #define EFI_WATCHDOG_TIMER_DRIVER_PROTOCOL_GUID \\r | |
28 | { 0xd5b06d16, 0x2ea1, 0x4def, 0x98, 0xd0, 0xa0, 0x5d, 0x40, 0x72, 0x84, 0x17 }\r | |
29 | \r | |
30 | #define EFI_WATCHDOG_TIMER_NOT_SUPPORTED_PROTOCOL_GUID \\r | |
31 | { 0xe9e156ac, 0x3203, 0x4572, 0xac, 0xdf, 0x84, 0x4f, 0xdc, 0xdb, 0x6, 0xbf }\r | |
32 | \r | |
33 | \r | |
34 | #include <Guid/HwWatchdogTimerHob.h>\r | |
35 | \r | |
36 | //\r | |
37 | // General Purpose Constants\r | |
38 | //\r | |
39 | #define ICH_INSTAFLUSH_GPIO BIT16 // BIT 16 in GPIO Level 2 is GPIO 48.\r | |
40 | #define B_INSTAFLUSH BIT4\r | |
41 | //\r | |
42 | // Other Watchdog timer values\r | |
43 | //\r | |
44 | #define WDT_COUNTDOWN_VALUE 0x14\r | |
45 | #define BDS_WDT_COUNTDOWN_VALUE 0x35\r | |
46 | \r | |
47 | \r | |
48 | //\r | |
49 | // Prototypes for the Watchdog Timer Driver Protocol\r | |
50 | //\r | |
51 | \r | |
52 | typedef\r | |
53 | EFI_STATUS\r | |
54 | (EFIAPI *EFI_WATCHDOG_START_TIMER) (\r | |
55 | VOID\r | |
56 | );\r | |
57 | /*++\r | |
58 | \r | |
59 | Routine Description:\r | |
60 | This service begins the Watchdog Timer countdown. If the countdown completes prior to\r | |
61 | Stop Timer or Restart Timer the system will reset.\r | |
62 | \r | |
63 | Arguments:\r | |
64 | None\r | |
65 | \r | |
66 | Returns:\r | |
67 | EFI_SUCCESS - Operation completed successfully\r | |
68 | EFI_DEVICE_ERROR - The command was unsuccessful\r | |
69 | \r | |
70 | --*/\r | |
71 | \r | |
72 | \r | |
73 | \r | |
74 | typedef\r | |
75 | EFI_STATUS\r | |
76 | (EFIAPI *PEI_WATCHDOG_RESET_TIMER) (\r | |
77 | VOID\r | |
78 | );\r | |
79 | /*++\r | |
80 | \r | |
81 | Routine Description:\r | |
82 | This service resets the Watchdog Timer countdown and should only be called after the\r | |
83 | Start Timer function.\r | |
84 | \r | |
85 | Arguments:\r | |
86 | None\r | |
87 | \r | |
88 | Returns:\r | |
89 | EFI_SUCCESS - Operation completed successfully\r | |
90 | EFI_DEVICE_ERROR - The command was unsuccessful\r | |
91 | \r | |
92 | --*/\r | |
93 | \r | |
94 | \r | |
95 | \r | |
96 | \r | |
97 | typedef\r | |
98 | EFI_STATUS\r | |
99 | (EFIAPI *EFI_WATCHDOG_RESTART_TIMER) (\r | |
100 | VOID\r | |
101 | );\r | |
102 | /*++\r | |
103 | \r | |
104 | Routine Description:\r | |
105 | This service restarts the Watchdog Timer countdown and should only be called after the\r | |
106 | Start Timer function.\r | |
107 | \r | |
108 | Arguments:\r | |
109 | None\r | |
110 | \r | |
111 | Returns:\r | |
112 | EFI_SUCCESS - Operation completed successfully\r | |
113 | EFI_DEVICE_ERROR - The command was unsuccessful\r | |
114 | \r | |
115 | --*/\r | |
116 | \r | |
117 | \r | |
118 | \r | |
119 | \r | |
120 | typedef\r | |
121 | EFI_STATUS\r | |
122 | (EFIAPI *EFI_WATCHDOG_STOP_TIMER) (\r | |
123 | VOID\r | |
124 | );\r | |
125 | /*++\r | |
126 | \r | |
127 | Routine Description:\r | |
128 | This service disables the Watchdog Timer countdown.\r | |
129 | \r | |
130 | Arguments:\r | |
131 | None\r | |
132 | \r | |
133 | Returns:\r | |
134 | EFI_SUCCESS - Operation completed successfully\r | |
135 | EFI_DEVICE_ERROR - The command was unsuccessful\r | |
136 | \r | |
137 | --*/\r | |
138 | \r | |
139 | \r | |
140 | \r | |
141 | typedef\r | |
142 | EFI_STATUS\r | |
143 | (EFIAPI *EFI_WATCHDOG_CHECK_TIMEOUT) (\r | |
144 | OUT HW_WATCHDOG_TIMEOUT *WatchdogTimeout\r | |
145 | );\r | |
146 | /*++\r | |
147 | \r | |
148 | Routine Description:\r | |
149 | This service disables the Watchdog Timer countdown.\r | |
150 | \r | |
151 | Arguments:\r | |
152 | None\r | |
153 | \r | |
154 | Returns:\r | |
155 | EFI_SUCCESS - Operation completed successfully\r | |
156 | EFI_DEVICE_ERROR - The command was unsuccessful\r | |
157 | \r | |
158 | --*/\r | |
159 | \r | |
160 | \r | |
161 | \r | |
162 | typedef\r | |
163 | EFI_STATUS\r | |
164 | (EFIAPI *EFI_WATCHDOG_FORCE_REBOOT) (\r | |
165 | IN BOOLEAN ForceTimeout,\r | |
166 | IN UINT8 ResetType\r | |
167 | );\r | |
168 | /*++\r | |
169 | \r | |
170 | Routine Description:\r | |
171 | This service forces a reboot of the system due to a reset of the POWERGOOD_PS,\r | |
172 | POWERGOOD_CLK, and the BSEL Override\r | |
173 | \r | |
174 | Arguments:\r | |
175 | None\r | |
176 | \r | |
177 | Returns:\r | |
178 | This function should not return!\r | |
179 | \r | |
180 | EFI_DEVICE_ERROR - The command was unsuccessful and a reboot did not occur\r | |
181 | \r | |
182 | --*/\r | |
183 | \r | |
184 | \r | |
185 | \r | |
186 | typedef\r | |
187 | EFI_STATUS\r | |
188 | (EFIAPI *EFI_WATCHDOG_KNOWN_RESET) (\r | |
189 | IN BOOLEAN AllowReset\r | |
190 | );\r | |
191 | /*++\r | |
192 | \r | |
193 | Routine Description:\r | |
194 | This service notifies the Watchdog Timer of the fact that a known reset is occuring.\r | |
195 | \r | |
196 | Arguments:\r | |
197 | AllowReset - TRUE if a Reset is currently expected\r | |
198 | FALSE if a Reset is not currently expected\r | |
199 | \r | |
200 | Returns:\r | |
201 | This function should not return!\r | |
202 | \r | |
203 | EFI_DEVICE_ERROR - The command was unsuccessful and a reboot did not occur\r | |
204 | \r | |
205 | --*/\r | |
206 | \r | |
207 | typedef\r | |
208 | EFI_STATUS\r | |
209 | (EFIAPI *EFI_GET_TIMER_COUNT_DOWN_PERIOD)(\r | |
210 | OUT UINT32 *CountdownValue\r | |
211 | );\r | |
212 | /*++\r | |
213 | \r | |
214 | Routine Description:\r | |
215 | This service reads the current Watchdog Timer countdown reload value.\r | |
216 | \r | |
217 | Arguments:\r | |
218 | CountdownValue - pointer to UINT32 to return the value of the reload register.\r | |
219 | \r | |
220 | Returns:\r | |
221 | EFI_SUCCESS - Operation completed successfully\r | |
222 | EFI_DEVICE_ERROR - The command was unsuccessful\r | |
223 | \r | |
224 | --*/\r | |
225 | \r | |
226 | typedef\r | |
227 | EFI_STATUS\r | |
228 | (EFIAPI *EFI_SET_TIMER_COUNT_DOWN_PERIOD)(\r | |
229 | OUT UINT32 CountdownValue\r | |
230 | );\r | |
231 | /*++\r | |
232 | \r | |
233 | Routine Description:\r | |
234 | This service reads the current Watchdog Timer countdown reload value.\r | |
235 | \r | |
236 | Arguments:\r | |
237 | CountdownValue - Value to set the reload register.\r | |
238 | \r | |
239 | Returns:\r | |
240 | EFI_SUCCESS - Operation completed successfully\r | |
241 | EFI_DEVICE_ERROR - The command was unsuccessful\r | |
242 | \r | |
243 | --*/\r | |
244 | \r | |
245 | typedef\r | |
246 | EFI_STATUS\r | |
247 | (EFIAPI *PEI_WATCHDOG_CLEAR_TIMER_STATE) (\r | |
248 | );\r | |
249 | /*++\r | |
250 | \r | |
251 | Routine Description:\r | |
252 | This service clears the state that indicates the Watchdog Timer fired.\r | |
253 | \r | |
254 | Arguments:\r | |
255 | \r | |
256 | Returns:\r | |
257 | EFI_SUCCESS - Operation completed successfully\r | |
258 | EFI_DEVICE_ERROR - The command was unsuccessful\r | |
259 | \r | |
260 | --*/\r | |
261 | \r | |
262 | typedef\r | |
263 | EFI_STATUS\r | |
264 | (EFIAPI *EFI_STALL_WATCHDOG_COUNTDOWN) (\r | |
265 | IN BOOLEAN Stall\r | |
266 | );\r | |
267 | /*++\r | |
268 | \r | |
269 | Routine Description:\r | |
270 | This service disables the Watchdog Timer countdown. It also closes the recurring restart event\r | |
271 | if the event exists.\r | |
272 | \r | |
273 | Arguments:\r | |
274 | Stall - TRUE = Stop the timer countdown\r | |
275 | FALSE = Start the timer countdown\r | |
276 | \r | |
277 | Returns:\r | |
278 | EFI_SUCCESS - Operation completed successfully\r | |
279 | EFI_DEVICE_ERROR - The command was unsuccessful\r | |
280 | \r | |
281 | --*/\r | |
282 | \r | |
283 | typedef struct _EFI_WATCHDOG_TIMER_DRIVER_PROTOCOL {\r | |
284 | EFI_WATCHDOG_START_TIMER StartWatchdogTimer;\r | |
285 | PEI_WATCHDOG_RESET_TIMER ResetWatchdogTimeout;\r | |
286 | EFI_WATCHDOG_RESTART_TIMER RestartWatchdogTimer;\r | |
287 | EFI_WATCHDOG_STOP_TIMER StopWatchdogTimer;\r | |
288 | EFI_WATCHDOG_CHECK_TIMEOUT CheckWatchdogTimeout;\r | |
289 | EFI_WATCHDOG_FORCE_REBOOT ForceReboot;\r | |
290 | EFI_WATCHDOG_KNOWN_RESET AllowKnownReset;\r | |
291 | EFI_GET_TIMER_COUNT_DOWN_PERIOD GetCountdownPeriod;\r | |
292 | EFI_SET_TIMER_COUNT_DOWN_PERIOD SetCountdownPeriod;\r | |
293 | PEI_WATCHDOG_CLEAR_TIMER_STATE ClearTimerState;\r | |
294 | EFI_STALL_WATCHDOG_COUNTDOWN StallWatchdogCountdown;\r | |
295 | } EFI_WATCHDOG_TIMER_DRIVER_PROTOCOL;\r | |
296 | \r | |
297 | extern EFI_GUID gEfiWatchdogTimerDriverProtocolGuid;\r | |
298 | extern EFI_GUID gEfiWatchdogTimerNotSupportedProtocolGuid;\r | |
299 | \r | |
300 | #endif\r |