projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 |
| 7ca30a6a | 21 | \r |
| b2f4da39 LE |
22 | #include <OvmfPlatforms.h>\r |
| 23 | \r | |
| 7ca30a6a | 24 | VOID\r |
| 25 | AcpiPmControl (\r | |
| 26 | UINTN SuspendType\r | |
| 27 | )\r | |
| 28 | {\r | |
| 29 | ASSERT (SuspendType < 6);\r | |
| 30 | \r | |
| b2f4da39 LE |
31 | IoBitFieldWrite16 (PIIX4_PMBA_VALUE + 4, 10, 13, (UINT16) SuspendType);\r |
| 32 | IoOr16 (PIIX4_PMBA_VALUE + 4, BIT13);\r | |
| 7ca30a6a | 33 | CpuDeadLoop ();\r |
| 34 | }\r | |
| 35 | \r | |
| 36 | /**\r | |
| 37 | Calling this function causes a system-wide reset. This sets\r | |
| 38 | all circuitry within the system to its initial state. This type of reset\r | |
| 39 | is asynchronous to system operation and operates without regard to\r | |
| 40 | cycle boundaries.\r | |
| 41 | \r | |
| 42 | System reset should not return, if it returns, it means the system does\r | |
| 43 | not support cold reset.\r | |
| 44 | **/\r | |
| 45 | VOID\r | |
| 46 | EFIAPI\r | |
| 47 | ResetCold (\r | |
| 48 | VOID\r | |
| 49 | )\r | |
| 50 | {\r | |
| cb7b12ee | 51 | IoWrite8 (0xCF9, BIT2 | BIT1); // 1st choice: PIIX3 RCR, RCPU|SRST\r |
| fb2ae5fd | 52 | MicroSecondDelay (50);\r |
| 53 | \r | |
| cb7b12ee | 54 | IoWrite8 (0x64, 0xfe); // 2nd choice: keyboard controller\r |
| fb2ae5fd | 55 | CpuDeadLoop ();\r |
| 7ca30a6a | 56 | }\r |
| 57 | \r | |
| 58 | /**\r | |
| 59 | Calling this function causes a system-wide initialization. The processors\r | |
| 60 | are set to their initial state, and pending cycles are not corrupted.\r | |
| 61 | \r | |
| 62 | System reset should not return, if it returns, it means the system does\r | |
| 63 | not support warm reset.\r | |
| 64 | **/\r | |
| 65 | VOID\r | |
| 66 | EFIAPI\r | |
| 67 | ResetWarm (\r | |
| 68 | VOID\r | |
| 69 | )\r | |
| 70 | {\r | |
| 71 | IoWrite8 (0x64, 0xfe);\r | |
| fb2ae5fd | 72 | CpuDeadLoop ();\r |
| 7ca30a6a | 73 | }\r |
| 74 | \r | |
| 75 | /**\r | |
| 76 | Calling this function causes the system to enter a power state equivalent\r | |
| 77 | to the ACPI G2/S5 or G3 states.\r | |
| 78 | \r | |
| 79 | System shutdown should not return, if it returns, it means the system does\r | |
| 80 | not support shut down reset.\r | |
| 81 | **/\r | |
| 82 | VOID\r | |
| 83 | EFIAPI\r | |
| 84 | ResetShutdown (\r | |
| 85 | VOID\r | |
| 86 | )\r | |
| 87 | {\r | |
| 88 | AcpiPmControl (0);\r | |
| 89 | ASSERT (FALSE);\r | |
| 90 | }\r | |
| 91 | \r | |
| 92 | \r | |
| 93 | /**\r | |
| 94 | Calling this function causes the system to enter a power state for capsule\r | |
| 95 | update.\r | |
| 96 | \r | |
| 97 | Reset update should not return, if it returns, it means the system does\r | |
| 98 | not support capsule update.\r | |
| 99 | \r | |
| 100 | **/\r | |
| 101 | VOID\r | |
| 102 | EFIAPI\r | |
| 103 | EnterS3WithImmediateWake (\r | |
| 104 | VOID\r | |
| 105 | )\r | |
| 106 | {\r | |
| 107 | AcpiPmControl (1);\r | |
| 108 | ASSERT (FALSE);\r | |
| 109 | }\r |