summaryrefslogtreecommitdiff
path: root/Silicon/BroxtonSoC/BroxtonSiPkg/Txe/Library/Private/PeiDxeHeciInitLib/HeciHpet.h
diff options
context:
space:
mode:
Diffstat (limited to 'Silicon/BroxtonSoC/BroxtonSiPkg/Txe/Library/Private/PeiDxeHeciInitLib/HeciHpet.h')
-rw-r--r--Silicon/BroxtonSoC/BroxtonSiPkg/Txe/Library/Private/PeiDxeHeciInitLib/HeciHpet.h99
1 files changed, 99 insertions, 0 deletions
diff --git a/Silicon/BroxtonSoC/BroxtonSiPkg/Txe/Library/Private/PeiDxeHeciInitLib/HeciHpet.h b/Silicon/BroxtonSoC/BroxtonSiPkg/Txe/Library/Private/PeiDxeHeciInitLib/HeciHpet.h
new file mode 100644
index 0000000000..3ed613ac66
--- /dev/null
+++ b/Silicon/BroxtonSoC/BroxtonSiPkg/Txe/Library/Private/PeiDxeHeciInitLib/HeciHpet.h
@@ -0,0 +1,99 @@
+/** @file
+ Definitions for HECI driver.
+
+ Copyright (c) 2012 - 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.
+
+**/
+
+#ifndef _HECI_HPET_H
+#define _HECI_HPET_H
+
+#include "HeciCore.h"
+#include <IndustryStandard/Pci22.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <HeciRegs.h>
+#include <SeCAccess.h>
+
+volatile
+UINT32 *
+EnableHpet (
+ VOID
+ );
+
+VOID
+SaveHpet (
+ VOID
+ );
+
+/**
+ Restore the value of High Performance Timer
+
+ @param[in] None
+
+ @retval None
+
+**/
+VOID
+RestoreHpet (
+ VOID
+ );
+
+/**
+ Used for calculating timeouts
+
+ @param[in] Start Snapshot of the HPET timer
+ @param[in] End Calculated time when timeout period will be done
+ @param[in] Time Timeout period in microseconds
+
+ @retval None
+
+**/
+volatile
+UINT32 *
+StartTimer (
+ OUT UINT32 *Start,
+ OUT UINT32 *End,
+ IN UINT32 Time
+ );
+
+/**
+ Used to determine if a timeout has occured.
+
+ @param[in] Start Snapshot of the HPET timer when the timeout period started.
+ @param[in] End Calculated time when timeout period will be done.
+
+ @retval EFI_STATUS
+
+**/
+EFI_STATUS
+Timeout (
+ IN UINT32 Start,
+ IN UINT32 End,
+ IN volatile UINT32 *HpetTimer
+ );
+
+/**
+ Delay for at least the request number of microseconds
+
+ @param[in] delayTime Number of microseconds to delay.
+
+ @retval None
+
+**/
+VOID
+IoDelay (
+ UINT32 delayTime
+ );
+
+#endif ///< _HECI_HPET_H
+