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1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
4 | \r\r | |
5 | This program and the accompanying materials are licensed and made available under\r\r | |
6 | the terms and conditions of the BSD License that accompanies this distribution. \r\r | |
7 | The full text of the license may be found at \r\r | |
8 | http://opensource.org/licenses/bsd-license.php. \r\r | |
9 | \r\r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r\r | |
12 | \r\r | |
13 | \r | |
14 | Module Name:\r | |
15 | \r | |
16 | \r | |
17 | BootMode.c\r | |
18 | \r | |
19 | Abstract:\r | |
20 | \r | |
21 | EFI PEIM to provide the platform support functionality on the Thurley.\r | |
22 | \r | |
23 | \r | |
24 | --*/\r | |
25 | #include "CommonHeader.h"\r | |
26 | #include "Platform.h"\r | |
27 | #include "PlatformBaseAddresses.h"\r | |
28 | #include "PchAccess.h"\r | |
29 | #include "PlatformBootMode.h"\r | |
30 | #include <Guid/SetupVariable.h>\r | |
31 | \r | |
32 | #include <Guid/BootState.h>\r | |
33 | \r | |
34 | //\r | |
35 | // Priority of our boot modes, highest priority first\r | |
36 | //\r | |
37 | EFI_BOOT_MODE mBootModePriority[] = {\r | |
38 | BOOT_IN_RECOVERY_MODE,\r | |
39 | BOOT_WITH_DEFAULT_SETTINGS,\r | |
40 | BOOT_ON_FLASH_UPDATE,\r | |
41 | BOOT_ON_S2_RESUME,\r | |
42 | BOOT_ON_S3_RESUME,\r | |
43 | BOOT_ON_S4_RESUME,\r | |
44 | BOOT_WITH_MINIMAL_CONFIGURATION,\r | |
45 | BOOT_ASSUMING_NO_CONFIGURATION_CHANGES,\r | |
46 | BOOT_WITH_FULL_CONFIGURATION_PLUS_DIAGNOSTICS,\r | |
47 | BOOT_WITH_FULL_CONFIGURATION,\r | |
48 | BOOT_ON_S5_RESUME\r | |
49 | };\r | |
50 | \r | |
51 | EFI_PEI_NOTIFY_DESCRIPTOR mCapsuleNotifyList[1] = {\r | |
52 | {\r | |
53 | (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
54 | &gPeiCapsulePpiGuid,\r | |
55 | CapsulePpiNotifyCallback\r | |
56 | }\r | |
57 | };\r | |
58 | \r | |
59 | BOOLEAN\r | |
60 | GetSleepTypeAfterWakeup (\r | |
61 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
62 | OUT UINT16 *SleepType\r | |
63 | );\r | |
64 | \r | |
65 | EFI_STATUS\r | |
66 | EFIAPI\r | |
67 | CapsulePpiNotifyCallback (\r | |
68 | IN EFI_PEI_SERVICES **PeiServices,\r | |
69 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
70 | IN VOID *Ppi\r | |
71 | )\r | |
72 | {\r | |
73 | EFI_STATUS Status;\r | |
74 | EFI_BOOT_MODE BootMode;\r | |
75 | PEI_CAPSULE_PPI *Capsule;\r | |
76 | \r | |
77 | Status = (*PeiServices)->GetBootMode((const EFI_PEI_SERVICES **)PeiServices, &BootMode);\r | |
78 | ASSERT_EFI_ERROR (Status);\r | |
79 | \r | |
80 | if (BootMode == BOOT_ON_S3_RESUME) {\r | |
81 | //\r | |
82 | // Determine if we're in capsule update mode\r | |
83 | //\r | |
84 | Status = (*PeiServices)->LocatePpi ((const EFI_PEI_SERVICES **)PeiServices,\r | |
85 | &gPeiCapsulePpiGuid,\r | |
86 | 0,\r | |
87 | NULL,\r | |
88 | (VOID **)&Capsule\r | |
89 | );\r | |
90 | \r | |
91 | if (Status == EFI_SUCCESS) {\r | |
92 | if (Capsule->CheckCapsuleUpdate ((EFI_PEI_SERVICES**)PeiServices) == EFI_SUCCESS) {\r | |
93 | BootMode = BOOT_ON_FLASH_UPDATE;\r | |
94 | Status = (*PeiServices)->SetBootMode((const EFI_PEI_SERVICES **)PeiServices, BootMode);\r | |
95 | ASSERT_EFI_ERROR (Status);\r | |
96 | }\r | |
97 | }\r | |
98 | }\r | |
99 | \r | |
100 | return Status;\r | |
101 | }\r | |
102 | \r | |
103 | /**\r | |
104 | Check CMOS register bit to determine if previous boot was successful\r | |
105 | \r | |
106 | @param PeiServices pointer to the PEI Service Table\r | |
107 | \r | |
108 | @retval TRUE - Previous Boot was success\r | |
109 | @retval FALSE - Previous Boot wasn't success\r | |
110 | \r | |
111 | **/\r | |
112 | BOOLEAN\r | |
113 | IsPreviousBootSuccessful(\r | |
114 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
115 | \r | |
116 | )\r | |
117 | {\r | |
118 | EFI_STATUS Status;\r | |
119 | BOOLEAN BootState;\r | |
120 | UINTN DataSize;\r | |
121 | CHAR16 VarName[] = BOOT_STATE_VARIABLE_NAME;\r | |
122 | EFI_PEI_READ_ONLY_VARIABLE2_PPI *PeiVar;\r | |
123 | \r | |
124 | Status = (**PeiServices).LocatePpi (\r | |
125 | PeiServices,\r | |
126 | &gEfiPeiReadOnlyVariable2PpiGuid,\r | |
127 | 0,\r | |
128 | NULL,\r | |
129 | (void **)&PeiVar\r | |
130 | );\r | |
131 | ASSERT_EFI_ERROR (Status);\r | |
132 | \r | |
133 | //\r | |
134 | // Get last Boot State Variable to confirm that it is not a first boot .\r | |
135 | //\r | |
136 | \r | |
137 | DataSize = sizeof (BOOLEAN);\r | |
138 | Status = PeiVar->GetVariable (\r | |
139 | PeiVar,\r | |
140 | VarName,\r | |
141 | &gEfiBootStateGuid,\r | |
142 | NULL,\r | |
143 | &DataSize,\r | |
144 | &BootState\r | |
145 | );\r | |
146 | if (EFI_ERROR (Status) || (BootState == TRUE)) {\r | |
147 | return FALSE;\r | |
148 | }\r | |
149 | \r | |
150 | DEBUG ((EFI_D_INFO, "Previous boot cycle successfully completed handover to OS\n"));\r | |
151 | return TRUE;\r | |
152 | }\r | |
153 | #ifdef NOCS_S3_SUPPORT\r | |
154 | EFI_STATUS\r | |
155 | UpdateBootMode (\r | |
156 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
157 | )\r | |
158 | {\r | |
159 | EFI_STATUS Status;\r | |
160 | EFI_BOOT_MODE BootMode;\r | |
161 | UINT16 SleepType;\r | |
162 | CHAR16 *strBootMode;\r | |
163 | \r | |
164 | Status = (*PeiServices)->GetBootMode(PeiServices, &BootMode);\r | |
165 | ASSERT_EFI_ERROR (Status);\r | |
166 | if (BootMode == BOOT_IN_RECOVERY_MODE){\r | |
167 | return Status;\r | |
168 | }\r | |
169 | \r | |
170 | //\r | |
171 | // Let's assume things are OK if not told otherwise\r | |
172 | //\r | |
173 | BootMode = BOOT_WITH_FULL_CONFIGURATION;\r | |
174 | \r | |
175 | if (GetSleepTypeAfterWakeup (PeiServices, &SleepType)) {\r | |
176 | switch (SleepType) {\r | |
177 | case V_PCH_ACPI_PM1_CNT_S3:\r | |
178 | BootMode = BOOT_ON_S3_RESUME;\r | |
179 | Status = (*PeiServices)->NotifyPpi (PeiServices, &mCapsuleNotifyList[0]);\r | |
180 | ASSERT_EFI_ERROR (Status);\r | |
181 | break;\r | |
182 | \r | |
183 | case V_PCH_ACPI_PM1_CNT_S4:\r | |
184 | BootMode = BOOT_ON_S4_RESUME;\r | |
185 | break;\r | |
186 | \r | |
187 | case V_PCH_ACPI_PM1_CNT_S5:\r | |
188 | BootMode = BOOT_ON_S5_RESUME;\r | |
189 | break;\r | |
190 | } // switch (SleepType)\r | |
191 | }\r | |
192 | \r | |
193 | if (IsFastBootEnabled (PeiServices) && IsPreviousBootSuccessful (PeiServices)) {\r | |
194 | DEBUG ((EFI_D_INFO, "Prioritizing Boot mode to BOOT_WITH_MINIMAL_CONFIGURATION\n"));\r | |
195 | PrioritizeBootMode (&BootMode, BOOT_WITH_MINIMAL_CONFIGURATION);\r | |
196 | }\r | |
197 | \r | |
198 | switch (BootMode) {\r | |
199 | case BOOT_WITH_FULL_CONFIGURATION:\r | |
200 | strBootMode = L"BOOT_WITH_FULL_CONFIGURATION";\r | |
201 | break;\r | |
202 | case BOOT_WITH_MINIMAL_CONFIGURATION:\r | |
203 | strBootMode = L"BOOT_WITH_MINIMAL_CONFIGURATION";\r | |
204 | break;\r | |
205 | case BOOT_ASSUMING_NO_CONFIGURATION_CHANGES:\r | |
206 | strBootMode = L"BOOT_ASSUMING_NO_CONFIGURATION_CHANGES";\r | |
207 | break;\r | |
208 | case BOOT_WITH_FULL_CONFIGURATION_PLUS_DIAGNOSTICS:\r | |
209 | strBootMode = L"BOOT_WITH_FULL_CONFIGURATION_PLUS_DIAGNOSTICS";\r | |
210 | break;\r | |
211 | case BOOT_WITH_DEFAULT_SETTINGS:\r | |
212 | strBootMode = L"BOOT_WITH_DEFAULT_SETTINGS";\r | |
213 | break;\r | |
214 | case BOOT_ON_S4_RESUME:\r | |
215 | strBootMode = L"BOOT_ON_S4_RESUME";\r | |
216 | break;\r | |
217 | case BOOT_ON_S5_RESUME:\r | |
218 | strBootMode = L"BOOT_ON_S5_RESUME";\r | |
219 | break;\r | |
220 | case BOOT_ON_S2_RESUME:\r | |
221 | strBootMode = L"BOOT_ON_S2_RESUME";\r | |
222 | break;\r | |
223 | case BOOT_ON_S3_RESUME:\r | |
224 | strBootMode = L"BOOT_ON_S3_RESUME";\r | |
225 | \r | |
226 | break;\r | |
227 | case BOOT_ON_FLASH_UPDATE:\r | |
228 | strBootMode = L"BOOT_ON_FLASH_UPDATE";\r | |
229 | break;\r | |
230 | case BOOT_IN_RECOVERY_MODE:\r | |
231 | strBootMode = L"BOOT_IN_RECOVERY_MODE";\r | |
232 | break;\r | |
233 | default:\r | |
234 | strBootMode = L"Unknown boot mode";\r | |
235 | } // switch (BootMode)\r | |
236 | \r | |
237 | DEBUG ((EFI_D_ERROR, "Setting BootMode to %s\n", strBootMode));\r | |
238 | Status = (*PeiServices)->SetBootMode(PeiServices, BootMode);\r | |
239 | ASSERT_EFI_ERROR (Status);\r | |
240 | \r | |
241 | return Status;\r | |
242 | }\r | |
243 | #endif\r | |
244 | \r | |
245 | /**\r | |
246 | Get sleep type after wakeup\r | |
247 | \r | |
248 | @param PeiServices Pointer to the PEI Service Table.\r | |
249 | @param SleepType Sleep type to be returned.\r | |
250 | \r | |
251 | @retval TRUE A wake event occured without power failure.\r | |
252 | @retval FALSE Power failure occured or not a wakeup.\r | |
253 | \r | |
254 | **/\r | |
255 | BOOLEAN\r | |
256 | GetSleepTypeAfterWakeup (\r | |
257 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
258 | OUT UINT16 *SleepType\r | |
259 | )\r | |
260 | {\r | |
261 | UINT16 Pm1Sts;\r | |
262 | UINT16 Pm1Cnt;\r | |
263 | UINT16 GenPmCon1;\r | |
264 | //\r | |
265 | // VLV BIOS Specification 0.6.2 - Section 18.4, "Power Failure Consideration"\r | |
266 | //\r | |
267 | // When the SUS_PWR_FLR bit is set, it indicates the SUS well power is lost.\r | |
268 |