diff options
| author | Jiewen Yao <jiewen.yao@intel.com> | 2017-05-20 15:42:12 +0800 |
|---|---|---|
| committer | Jiewen Yao <jiewen.yao@intel.com> | 2017-06-23 11:54:49 +0800 |
| commit | 1f003fafade69043b4fd587dd30fc63997df0d3e (patch) | |
| tree | 1cb078c51efe0c56ce1b0eb3598a121862c7376f /Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.c | |
| parent | 012d883a848bf7af8b4859394bb32f8b2a45313f (diff) | |
| download | edk2-platforms-1f003fafade69043b4fd587dd30fc63997df0d3e.tar.xz | |
Add MinPlatform.
reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
reviewed-by: Michael A Kubacki <michael.a.kubacki@intel.com>
reviewed-by: Amy Chan <amy.chan@intel.com>
reviewed-by: Rangasai V Chaganty <rangasai.v.chaganty@intel.com>
reviewed-by: Chasel Chiu <chasel.chiu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Diffstat (limited to 'Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.c')
| -rw-r--r-- | Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.c b/Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.c new file mode 100644 index 0000000000..74c1678bc8 --- /dev/null +++ b/Platform/Intel/MinPlatformPkg/Acpi/AcpiSmm/AcpiSmm.c @@ -0,0 +1,114 @@ +/** @file
+ Acpi Smm driver.
+
+Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials are licensed and made available under
+the terms and conditions of the BSD License that accompanies this distribution.
+The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php.
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "AcpiSmm.h"
+
+/**
+ Enable SCI
+
+ @param[in] DispatchHandle - The handle of this callback, obtained when registering
+ @param[in] DispatchContext - Pointer to the EFI_SMM_SW_DISPATCH_CONTEXT
+ @param[in] CommBuffer - A pointer to a collection of data in memory that will
+ be conveyed from a non-SMM environment into an SMM environment.
+ @param[in] CommBufferSize - The size of the CommBuffer.
+**/
+EFI_STATUS
+EFIAPI
+EnableAcpiCallback (
+ IN EFI_HANDLE DispatchHandle,
+ IN CONST VOID *DispatchContext,
+ IN OUT VOID *CommBuffer OPTIONAL,
+ IN OUT UINTN *CommBufferSize OPTIONAL
+ )
+{
+ BoardEnableAcpi (TRUE);
+ return EFI_SUCCESS;
+}
+
+/**
+ Disable SCI
+
+ @param[in] DispatchHandle - The handle of this callback, obtained when registering
+ @param[in] DispatchContext - Pointer to the EFI_SMM_SW_DISPATCH_CONTEXT
+ @param[in] CommBuffer - A pointer to a collection of data in memory that will
+ be conveyed from a non-SMM environment into an SMM environment.
+ @param[in] CommBufferSize - The size of the CommBuffer.
+**/
+EFI_STATUS
+EFIAPI
+DisableAcpiCallback (
+ IN EFI_HANDLE DispatchHandle,
+ IN CONST VOID *DispatchContext,
+ IN OUT VOID *CommBuffer OPTIONAL,
+ IN UINTN *CommBufferSize OPTIONAL
+ )
+{
+ BoardDisableAcpi (TRUE);
+ return EFI_SUCCESS;
+}
+
+/**
+ Initializes the Acpi Smm Driver
+
+ @param[in] ImageHandle - Pointer to the loaded image protocol for this driver
+ @param[in] SystemTable - Pointer to the EFI System Table
+
+ @retval Status - EFI_SUCCESS
+ @retval Assert, otherwise.
+
+**/
+EFI_STATUS
+EFIAPI
+InitializeAcpiSmm (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ EFI_HANDLE SwHandle;
+ EFI_SMM_SW_DISPATCH2_PROTOCOL *SwDispatch;
+ EFI_SMM_SW_REGISTER_CONTEXT SwContext;
+
+ //
+ // Locate the ICH SMM SW dispatch protocol
+ //
+ Status = gSmst->SmmLocateProtocol (&gEfiSmmSwDispatch2ProtocolGuid, NULL, (VOID**)&SwDispatch);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Register ACPI enable SMI handler
+ //
+ SwContext.SwSmiInputValue = (UINTN) PcdGet8 (PcdAcpiEnableSwSmi);
+ Status = SwDispatch->Register (
+ SwDispatch,
+ EnableAcpiCallback,
+ &SwContext,
+ &SwHandle
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Register ACPI disable SMI handler
+ //
+ SwContext.SwSmiInputValue = (UINTN) PcdGet8 (PcdAcpiDisableSwSmi);
+ Status = SwDispatch->Register (
+ SwDispatch,
+ DisableAcpiCallback,
+ &SwContext,
+ &SwHandle
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return EFI_SUCCESS;
+}
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