diff options
Diffstat (limited to 'Silicon/BroxtonSoC/BroxtonSiPkg/Txe/Library/SmmHeci2PowerManagementLib/SmmHeci2PowerManagementLib.c')
-rw-r--r-- | Silicon/BroxtonSoC/BroxtonSiPkg/Txe/Library/SmmHeci2PowerManagementLib/SmmHeci2PowerManagementLib.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/Silicon/BroxtonSoC/BroxtonSiPkg/Txe/Library/SmmHeci2PowerManagementLib/SmmHeci2PowerManagementLib.c b/Silicon/BroxtonSoC/BroxtonSiPkg/Txe/Library/SmmHeci2PowerManagementLib/SmmHeci2PowerManagementLib.c new file mode 100644 index 0000000000..4bf66dc78c --- /dev/null +++ b/Silicon/BroxtonSoC/BroxtonSiPkg/Txe/Library/SmmHeci2PowerManagementLib/SmmHeci2PowerManagementLib.c @@ -0,0 +1,57 @@ +/** @file
+ Implementation file for the HECI2 Power Management library.
+
+ Copyright (c) 2016, 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
+ which 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 <Uefi.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/SmmServicesTableLib.h>
+#include <Protocol/Heci2Pm.h>
+
+EFI_HECI2_PM_PROTOCOL *mHeci2PmProtocol = NULL;
+
+/**
+ Returns an instance of the HECI2 Power Management protocol.
+
+ @params[out] Heci2PmProtocol The address to a pointer to the HECI2 PM protocol.
+
+ @retval EFI_SUCCESS
+
+**/
+EFI_STATUS
+EFIAPI
+GetHeci2PmProtocol (
+ OUT EFI_HECI2_PM_PROTOCOL **Heci2PmProtocol
+ )
+{
+ EFI_STATUS Status;
+
+ if (mHeci2PmProtocol == NULL) {
+ Status = gSmst->SmmLocateProtocol (
+ &gEfiHeci2PmProtocolGuid,
+ NULL,
+ &mHeci2PmProtocol
+ );
+
+ if (EFI_ERROR (Status)) {
+ mHeci2PmProtocol = NULL;
+ return Status;
+ }
+ }
+
+ *Heci2PmProtocol = mHeci2PmProtocol;
+
+ return EFI_SUCCESS;
+}
+
|