/*++ @file\r
Reset Architectural Protocol implementation.\r
\r
-Copyright (c) 2006 - 2010, Intel Corporation \r
-All rights reserved. This program and the accompanying materials \r
+Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials \r
are licensed and made available under the terms and conditions of the BSD License \r
which accompanies this distribution. The full text of the license may be found at \r
http://opensource.org/licenses/bsd-license.php \r
\r
--*/\r
\r
-#include "Reset.h"\r
+#include <PiDxe.h>\r
\r
-/**\r
- Use ACPI method to reset the sytem. If fail, use legacy 8042 method to reset the system\r
+#include <Protocol/Reset.h>\r
\r
- @param[in] AcpiDescription Global variable to record reset info\r
+#include <Guid/AcpiDescription.h>\r
\r
-**/\r
-VOID\r
-SystemReset (\r
- IN EFI_ACPI_DESCRIPTION *AcpiDescription\r
- )\r
-{\r
- UINT8 Dev;\r
- UINT8 Func;\r
- UINT8 Register;\r
+#include <Library/BaseLib.h>\r
+#include <Library/IoLib.h>\r
+#include <Library/PciLib.h>\r
+#include <Library/HobLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/UefiBootServicesTableLib.h>\r
\r
- if ((AcpiDescription->RESET_REG.Address != 0) &&\r
- ((AcpiDescription->RESET_REG.AddressSpaceId == EFI_ACPI_3_0_SYSTEM_IO) ||\r
- (AcpiDescription->RESET_REG.AddressSpaceId == EFI_ACPI_3_0_SYSTEM_MEMORY) ||\r
- (AcpiDescription->RESET_REG.AddressSpaceId == EFI_ACPI_3_0_PCI_CONFIGURATION_SPACE))) {\r
- //\r
- // Use ACPI System Reset\r
- //\r
- switch (AcpiDescription->RESET_REG.AddressSpaceId) {\r
- case EFI_ACPI_3_0_SYSTEM_IO:\r
- IoWrite8 ((UINTN) AcpiDescription->RESET_REG.Address, AcpiDescription->RESET_VALUE);\r
- break;\r
- case EFI_ACPI_3_0_SYSTEM_MEMORY:\r
- MmioWrite8 ((UINTN) AcpiDescription->RESET_REG.Address, AcpiDescription->RESET_VALUE);\r
- break;\r
- case EFI_ACPI_3_0_PCI_CONFIGURATION_SPACE:\r
- Register = (UINT8) AcpiDescription->RESET_REG.Address;\r
- Func = (UINT8) (RShiftU64 (AcpiDescription->RESET_REG.Address, 16) & 0x7);\r
- Dev = (UINT8) (RShiftU64 (AcpiDescription->RESET_REG.Address, 32) & 0x1F);\r
- PciWrite8 (PCI_LIB_ADDRESS (0, Dev, Func, Register), AcpiDescription->RESET_VALUE);\r
- break;\r
- }\r
- }\r
-\r
- //\r
- // If system comes here, means ACPI reset fail, do Legacy System Reset, assume 8042 available\r
- //\r
- Register = 0xfe;\r
- IoWrite8 (0x64, Register);\r
-\r
- //\r
- // System should reset now\r
- //\r
+///\r
+/// Handle for the Reset Architectural Protocol\r
+///\r
+EFI_HANDLE mResetHandle = NULL;\r
\r
- return ;\r
-}\r
-\r
-/**\r
- Use ACPI method to shutdown the sytem\r
-\r
- @param[in] AcpiDescription Global variable to record reset info\r
-\r
- @retval EFI_UNSUPPORTED Shutdown fails\r
-\r
-**/\r
-EFI_STATUS\r
-SystemShutdown (\r
- IN EFI_ACPI_DESCRIPTION *AcpiDescription\r
- )\r
-{\r
- UINT16 Value;\r
-\r
- //\r
- // 1. Write SLP_TYPa\r
- //\r
- if ((AcpiDescription->PM1a_CNT_BLK.Address != 0) && (AcpiDescription->SLP_TYPa != 0)) {\r
- switch (AcpiDescription->PM1a_CNT_BLK.AddressSpaceId) {\r
- case EFI_ACPI_3_0_SYSTEM_IO:\r
- Value = IoRead16 ((UINTN) AcpiDescription->PM1a_CNT_BLK.Address);\r
- Value = (Value & 0xc3ff) | 0x2000 | (AcpiDescription->SLP_TYPa << 10);\r
- IoWrite16 ((UINTN) AcpiDescription->PM1a_CNT_BLK.Address, Value);\r
- break;\r
- case EFI_ACPI_3_0_SYSTEM_MEMORY:\r
- Value = MmioRead16 ((UINTN) AcpiDescription->PM1a_CNT_BLK.Address);\r
- Value = (Value & 0xc3ff) | 0x2000 | (AcpiDescription->SLP_TYPa << 10);\r
- MmioWrite16 ((UINTN) AcpiDescription->PM1a_CNT_BLK.Address, Value);\r
- break;\r
- }\r
- }\r
-\r
- //\r
- // 2. Write SLP_TYPb\r
- //\r
- if ((AcpiDescription->PM1b_CNT_BLK.Address != 0) && (AcpiDescription->SLP_TYPb != 0)) {\r
- switch (AcpiDescription->PM1b_CNT_BLK.AddressSpaceId) {\r
- case EFI_ACPI_3_0_SYSTEM_IO:\r
- Value = IoRead16 ((UINTN) AcpiDescription->PM1b_CNT_BLK.Address);\r
- Value = (Value & 0xc3ff) | 0x2000 | (AcpiDescription->SLP_TYPb << 10);\r
- IoWrite16 ((UINTN) AcpiDescription->PM1b_CNT_BLK.Address, Value);\r
- break;\r
- case EFI_ACPI_3_0_SYSTEM_MEMORY:\r
- Value = MmioRead16 ((UINTN) AcpiDescription->PM1b_CNT_BLK.Address);\r
- Value = (Value & 0xc3ff) | 0x2000 | (AcpiDescription->SLP_TYPb << 10);\r
- MmioWrite16 ((UINTN) AcpiDescription->PM1b_CNT_BLK.Address, Value);\r
- break;\r
- }\r
- }\r
-\r
- //\r
- // Done, if code runs here, mean not shutdown correctly\r
- //\r
- return EFI_UNSUPPORTED;\r
-}\r
+///\r
+/// Copy of ACPI Description HOB in runtime memory\r
+///\r
+EFI_ACPI_DESCRIPTION mAcpiDescription;\r
\r
/**\r
Reset the system.\r
@param[in] ResetStatus Possible cause of reset\r
@param[in] DataSize Size of ResetData in bytes\r
@param[in] ResetData Optional Unicode string\r
- @param[in] AcpiDescription Global variable to record reset info\r
\r
**/\r
VOID\r
EFIAPI\r
-AcpiResetSystem (\r
+EfiAcpiResetSystem (\r
IN EFI_RESET_TYPE ResetType,\r
IN EFI_STATUS ResetStatus,\r
IN UINTN DataSize,\r
- IN CHAR16 *ResetData, OPTIONAL\r
- IN EFI_ACPI_DESCRIPTION *AcpiDescription\r
+ IN VOID *ResetData OPTIONAL\r
)\r
{\r
- EFI_STATUS Status;\r
-\r
+ UINT8 Dev;\r
+ UINT8 Func;\r
+ UINT8 Register;\r
+ \r
switch (ResetType) {\r
+ case EfiResetShutdown:\r
+ //\r
+ // 1. Write SLP_TYPa\r
+ //\r
+ if ((mAcpiDescription.PM1a_CNT_BLK.Address != 0) && (mAcpiDescription.SLP_TYPa != 0)) {\r
+ switch (mAcpiDescription.PM1a_CNT_BLK.AddressSpaceId) {\r
+ case EFI_ACPI_3_0_SYSTEM_IO:\r
+ IoAndThenOr16 ((UINTN)mAcpiDescription.PM1a_CNT_BLK.Address, 0xc3ff, (UINT16)(0x2000 | (mAcpiDescription.SLP_TYPa << 10)));\r
+ break;\r
+ case EFI_ACPI_3_0_SYSTEM_MEMORY:\r
+ MmioAndThenOr16 ((UINTN)mAcpiDescription.PM1a_CNT_BLK.Address, 0xc3ff, (UINT16)(0x2000 | (mAcpiDescription.SLP_TYPa << 10)));\r
+ break;\r
+ }\r
+ }\r
+\r
+ //\r
+ // 2. Write SLP_TYPb\r
+ //\r
+ if ((mAcpiDescription.PM1b_CNT_BLK.Address != 0) && (mAcpiDescription.SLP_TYPb != 0)) {\r
+ switch (mAcpiDescription.PM1b_CNT_BLK.AddressSpaceId) {\r
+ case EFI_ACPI_3_0_SYSTEM_IO:\r
+ IoAndThenOr16 ((UINTN)mAcpiDescription.PM1b_CNT_BLK.Address, 0xc3ff, (UINT16)(0x2000 | (mAcpiDescription.SLP_TYPb << 10)));\r
+ break;\r
+ case EFI_ACPI_3_0_SYSTEM_MEMORY:\r
+ MmioAndThenOr16 ((UINTN)mAcpiDescription.PM1b_CNT_BLK.Address, 0xc3ff, (UINT16)(0x2000 | (mAcpiDescription.SLP_TYPb << 10)));\r
+ break;\r
+ }\r
+ }\r
+ //\r
+ // If Shutdown fails, then let fall through to reset \r
+ //\r
case EfiResetWarm:\r
case EfiResetCold:\r
- SystemReset (AcpiDescription);\r
- break;\r
-\r
- case EfiResetShutdown:\r
- Status = SystemShutdown (AcpiDescription);\r
- if (EFI_ERROR (Status)) {\r
- SystemReset (AcpiDescription);\r
+ if ((mAcpiDescription.RESET_REG.Address != 0) &&\r
+ ((mAcpiDescription.RESET_REG.AddressSpaceId == EFI_ACPI_3_0_SYSTEM_IO) ||\r
+ (mAcpiDescription.RESET_REG.AddressSpaceId == EFI_ACPI_3_0_SYSTEM_MEMORY) ||\r
+ (mAcpiDescription.RESET_REG.AddressSpaceId == EFI_ACPI_3_0_PCI_CONFIGURATION_SPACE))) {\r
+ //\r
+ // Use ACPI System Reset\r
+ //\r
+ switch (mAcpiDescription.RESET_REG.AddressSpaceId) {\r
+ case EFI_ACPI_3_0_SYSTEM_IO:\r
+ //\r
+ // Send reset request through I/O port register\r
+ //\r
+ IoWrite8 ((UINTN)mAcpiDescription.RESET_REG.Address, mAcpiDescription.RESET_VALUE);\r
+ //\r
+ // Halt \r
+ //\r
+ CpuDeadLoop ();\r
+ case EFI_ACPI_3_0_SYSTEM_MEMORY:\r
+ //\r
+ // Send reset request through MMIO register\r
+ //\r
+ MmioWrite8 ((UINTN)mAcpiDescription.RESET_REG.Address, mAcpiDescription.RESET_VALUE);\r
+ //\r
+ // Halt \r
+ //\r
+ CpuDeadLoop ();\r
+ case EFI_ACPI_3_0_PCI_CONFIGURATION_SPACE:\r
+ //\r
+ // Send reset request through PCI register\r
+ //\r
+ Register = (UINT8)mAcpiDescription.RESET_REG.Address;\r
+ Func = (UINT8) (RShiftU64 (mAcpiDescription.RESET_REG.Address, 16) & 0x7);\r
+ Dev = (UINT8) (RShiftU64 (mAcpiDescription.RESET_REG.Address, 32) & 0x1F);\r
+ PciWrite8 (PCI_LIB_ADDRESS (0, Dev, Func, Register), mAcpiDescription.RESET_VALUE);\r
+ //\r
+ // Halt \r
+ //\r
+ CpuDeadLoop ();\r
+ }\r
}\r
- break;\r
+\r
+ //\r
+ // If system comes here, means ACPI reset is not supported, so do Legacy System Reset, assume 8042 available\r
+ //\r
+ IoWrite8 (0x64, 0xfe);\r
+ CpuDeadLoop ();\r
\r
default:\r
- return ;\r
+ break;\r
}\r
\r
//\r
// Given we should have reset getting here would be bad\r
//\r
ASSERT (FALSE);\r
+ CpuDeadLoop();\r
}\r
\r
-BOOLEAN\r
-GetAcpiDescription (\r
- IN EFI_ACPI_DESCRIPTION *AcpiDescription\r
+/**\r
+ Initialize the state information for the Reset Architectural Protocol.\r
+\r
+ @param[in] ImageHandle Image handle of the loaded driver\r
+ @param[in] SystemTable Pointer to the System Table\r
+\r
+ @retval EFI_SUCCESS Thread can be successfully created\r
+ @retval EFI_UNSUPPORTED Cannot find the info to reset system\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+InitializeReset (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
)\r
{\r
- EFI_HOB_GUID_TYPE *HobAcpiDescription;\r
+ EFI_STATUS Status;\r
+ EFI_HOB_GUID_TYPE *HobAcpiDescription;\r
+\r
+ //\r
+ // Make sure the Reset Architectural Protocol is not already installed in the system\r
//\r
- // Get AcpiDescription Hob\r
+ ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiResetArchProtocolGuid);\r
+\r
+ //\r
+ // Get ACPI Description HOB\r
//\r
HobAcpiDescription = GetFirstGuidHob (&gEfiAcpiDescriptionGuid);\r
if (HobAcpiDescription == NULL) {\r
- return FALSE;\r
+ return EFI_UNSUPPORTED;\r
}\r
\r
//\r
// Copy it to Runtime Memory\r
//\r
ASSERT (sizeof (EFI_ACPI_DESCRIPTION) == GET_GUID_HOB_DATA_SIZE (HobAcpiDescription));\r
- CopyMem (AcpiDescription, GET_GUID_HOB_DATA (HobAcpiDescription), sizeof (EFI_ACPI_DESCRIPTION));\r
+ CopyMem (&mAcpiDescription, GET_GUID_HOB_DATA (HobAcpiDescription), sizeof (EFI_ACPI_DESCRIPTION));\r
+\r
+ DEBUG ((DEBUG_INFO, "ACPI Reset Base - %lx\n", mAcpiDescription.RESET_REG.Address));\r
+ DEBUG ((DEBUG_INFO, "ACPI Reset Value - %02x\n", (UINTN)mAcpiDescription.RESET_VALUE));\r
+ DEBUG ((DEBUG_INFO, "IAPC support - %x\n", (UINTN)(mAcpiDescription.IAPC_BOOT_ARCH)));\r
+ \r
+ //\r
+ // Hook the runtime service table\r
+ //\r
+ SystemTable->RuntimeServices->ResetSystem = EfiAcpiResetSystem;\r
+\r
+ //\r
+ // Install the Reset Architectural Protocol onto a new handle\r
+ //\r
+ Status = gBS->InstallMultipleProtocolInterfaces (\r
+ &mResetHandle,\r
+ &gEfiResetArchProtocolGuid, NULL,\r
+ NULL\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
\r
- DEBUG ((EFI_D_ERROR, "ACPI Reset Base - %lx\n", AcpiDescription->RESET_REG.Address));\r
- DEBUG ((EFI_D_ERROR, "ACPI Reset Value - %02x\n", (UINTN)AcpiDescription->RESET_VALUE));\r
- DEBUG ((EFI_D_ERROR, "IAPC support - %x\n", (UINTN)(AcpiDescription->IAPC_BOOT_ARCH)));\r
- return TRUE;\r
+ return Status;\r
}\r
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