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7ca30a6a | 1 | /** @file\r |
2 | Reset System Library functions for OVMF\r | |
3 | \r | |
d52c2868 | 4 | Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>\r |
7ca30a6a | 5 | This program and the accompanying materials\r |
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 | |
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 | #include <Base.h>\r | |
16 | \r | |
17 | #include <Library/BaseLib.h>\r | |
18 | #include <Library/DebugLib.h>\r | |
19 | #include <Library/IoLib.h>\r | |
fb2ae5fd | 20 | #include <Library/TimerLib.h>\r |
1466b76f | 21 | #include <OvmfPlatforms.h>\r |
7ca30a6a | 22 | \r |
b2f4da39 LE |
23 | #include <OvmfPlatforms.h>\r |
24 | \r | |
7ca30a6a | 25 | VOID\r |
26 | AcpiPmControl (\r | |
27 | UINTN SuspendType\r | |
28 | )\r | |
29 | {\r | |
1466b76f LE |
30 | UINT16 AcpiPmBaseAddress;\r |
31 | UINT16 HostBridgeDevId;\r | |
32 | \r | |
7ca30a6a | 33 | ASSERT (SuspendType < 6);\r |
34 | \r | |
1466b76f LE |
35 | AcpiPmBaseAddress = 0;\r |
36 | HostBridgeDevId = PciRead16 (OVMF_HOSTBRIDGE_DID);\r | |
37 | switch (HostBridgeDevId) {\r | |
38 | case INTEL_82441_DEVICE_ID:\r | |
39 | AcpiPmBaseAddress = PIIX4_PMBA_VALUE;\r | |
40 | break;\r | |
41 | case INTEL_Q35_MCH_DEVICE_ID:\r | |
42 | AcpiPmBaseAddress = ICH9_PMBASE_VALUE;\r | |
43 | break;\r | |
44 | default:\r | |
45 | ASSERT (FALSE);\r | |
46 | CpuDeadLoop ();\r | |
47 | }\r | |
48 | \r | |
49 | IoBitFieldWrite16 (AcpiPmBaseAddress + 4, 10, 13, (UINT16) SuspendType);\r | |
50 | IoOr16 (AcpiPmBaseAddress + 4, BIT13);\r | |
7ca30a6a | 51 | CpuDeadLoop ();\r |
52 | }\r | |
53 | \r | |
54 | /**\r | |
55 | Calling this function causes a system-wide reset. This sets\r | |
56 | all circuitry within the system to its initial state. This type of reset\r | |
57 | is asynchronous to system operation and operates without regard to\r | |
58 | cycle boundaries.\r | |
59 | \r | |
60 | System reset should not return, if it returns, it means the system does\r | |
61 | not support cold reset.\r | |
62 | **/\r | |
63 | VOID\r | |
64 | EFIAPI\r | |
65 | ResetCold (\r | |
66 | VOID\r | |
67 | )\r | |
68 | {\r | |
cb7b12ee | 69 | IoWrite8 (0xCF9, BIT2 | BIT1); // 1st choice: PIIX3 RCR, RCPU|SRST\r |
fb2ae5fd | 70 | MicroSecondDelay (50);\r |
71 | \r | |
cb7b12ee | 72 | IoWrite8 (0x64, 0xfe); // 2nd choice: keyboard controller\r |
fb2ae5fd | 73 | CpuDeadLoop ();\r |
7ca30a6a | 74 | }\r |
75 | \r | |
76 | /**\r | |
77 | Calling this function causes a system-wide initialization. The processors\r | |
78 | are set to their initial state, and pending cycles are not corrupted.\r | |
79 | \r | |
80 | System reset should not return, if it returns, it means the system does\r | |
81 | not support warm reset.\r | |
82 | **/\r | |
83 | VOID\r | |
84 | EFIAPI\r | |
85 | ResetWarm (\r | |
86 | VOID\r | |
87 | )\r | |
88 | {\r | |
89 | IoWrite8 (0x64, 0xfe);\r | |
fb2ae5fd | 90 | CpuDeadLoop ();\r |
7ca30a6a | 91 | }\r |
92 | \r | |
93 | /**\r | |
94 | Calling this function causes the system to enter a power state equivalent\r | |
95 | to the ACPI G2/S5 or G3 states.\r | |
96 | \r | |
97 | System shutdown should not return, if it returns, it means the system does\r | |
98 | not support shut down reset.\r | |
99 | **/\r | |
100 | VOID\r | |
101 | EFIAPI\r | |
102 | ResetShutdown (\r | |
103 | VOID\r | |
104 | )\r | |
105 | {\r | |
106 | AcpiPmControl (0);\r | |
107 | ASSERT (FALSE);\r | |
108 | }\r | |
109 | \r | |
110 | \r | |
111 | /**\r | |
112 | Calling this function causes the system to enter a power state for capsule\r | |
113 | update.\r | |
114 | \r | |
115 | Reset update should not return, if it returns, it means the system does\r | |
116 | not support capsule update.\r | |
117 | \r | |
118 | **/\r | |
119 | VOID\r | |
120 | EFIAPI\r | |
121 | EnterS3WithImmediateWake (\r | |
122 | VOID\r | |
123 | )\r | |
124 | {\r | |
125 | AcpiPmControl (1);\r | |
126 | ASSERT (FALSE);\r | |
127 | }\r |