[edk2] [PATCH v6 07/23] ArmPkg: add ArmGenericTimerCounterLib implementation using physical timer

Subject: [edk2] [PATCH v6 07/23] ArmPkg: add ArmGenericTimerCounterLib implementation using physical timer

From: Ard Biesheuvel <ard.biesheuvel@linaro.org>

To: edk2-devel@lists.sourceforge.net, lersek@redhat.com, olivier.martin@arm.com

Date: 2014-09-03 21:18:00

  • 2014-09-03 21:18:00  Ard Biesheuvel   [edk2] [PATCH v6 07/23] ArmPkg: add ArmGenericTimerCounterLib implementation using physical timer
This adds an implementation of ArmGenericTimerCounterLib using the physical
architected generic timer.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel 
---
 .../ArmGenericTimerPhyCounterLib.c                 | 139 +++++++++++++++++++++
 .../ArmGenericTimerPhyCounterLib.inf               |  33 +++++
 2 files changed, 172 insertions(+)
 create mode 100644 ArmPkg/Library/ArmGenericTimerPhyCounterLib/ArmGenericTimerPhyCounterLib.c
 create mode 100644 ArmPkg/Library/ArmGenericTimerPhyCounterLib/ArmGenericTimerPhyCounterLib.inf

diff --git a/ArmPkg/Library/ArmGenericTimerPhyCounterLib/ArmGenericTimerPhyCounterLib.c b/ArmPkg/Library/ArmGenericTimerPhyCounterLib/ArmGenericTimerPhyCounterLib.c
new file mode 100644
index 000000000000..568b8f55b164
--- /dev/null
+++ b/ArmPkg/Library/ArmGenericTimerPhyCounterLib/ArmGenericTimerPhyCounterLib.c
@@ -0,0 +1,139 @@
+/** @file
+
+  Copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.
+ Copyright (c) 2014, Linaro Ltd. All rights reserved.
+ + 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 +#include + +VOID +EFIAPI +ArmArchTimerEnableTimer ( + VOID + ) +{ + UINTN TimerCtrlReg; + + ArmArchTimerReadReg (CntpCtl, (VOID *)&TimerCtrlReg); + TimerCtrlReg |= ARM_ARCH_TIMER_ENABLE; + ArmArchTimerWriteReg (CntpCtl, (VOID *)&TimerCtrlReg); +} + +VOID +EFIAPI +ArmArchTimerDisableTimer ( + VOID + ) +{ + UINTN TimerCtrlReg; + + ArmArchTimerReadReg (CntpCtl, (VOID *)&TimerCtrlReg); + TimerCtrlReg &= ~ARM_ARCH_TIMER_ENABLE; + ArmArchTimerWriteReg (CntpCtl, (VOID *)&TimerCtrlReg); +} + +VOID +EFIAPI +ArmArchTimerSetTimerFreq ( + IN UINTN FreqInHz + ) +{ + ArmArchTimerWriteReg (CntFrq, (VOID *)&FreqInHz); +} + +UINTN +EFIAPI +ArmArchTimerGetTimerFreq ( + VOID + ) +{ + UINTN ArchTimerFreq = 0; + ArmArchTimerReadReg (CntFrq, (VOID *)&ArchTimerFreq); + return ArchTimerFreq; +} + +UINTN +EFIAPI +ArmArchTimerGetTimerVal ( + VOID + ) +{ + UINTN ArchTimerVal; + ArmArchTimerReadReg (CntpTval, (VOID *)&ArchTimerVal); + + return ArchTimerVal; +} + + +VOID +EFIAPI +ArmArchTimerSetTimerVal ( + IN UINTN Val + ) +{ + ArmArchTimerWriteReg (CntpTval, (VOID *)&Val); +} + +UINT64 +EFIAPI +ArmArchTimerGetSystemCount ( + VOID + ) +{ + UINT64 SystemCount; + ArmArchTimerReadReg (CntPct, (VOID *)&SystemCount); + + return SystemCount; +} + +UINTN +EFIAPI +ArmArchTimerGetTimerCtrlReg ( + VOID + ) +{ + UINTN Val; + ArmArchTimerReadReg (CntpCtl, (VOID *)&Val); + + return Val; +} + +VOID +EFIAPI +ArmArchTimerSetTimerCtrlReg ( + UINTN Val + ) +{ + ArmArchTimerWriteReg (CntpCtl, (VOID *)&Val); +} + +UINT64 +EFIAPI +ArmArchTimerGetCompareVal ( + VOID + ) +{ + UINT64 Val; + ArmArchTimerReadReg (CntpCval, (VOID *)&Val); + + return Val; +} + +VOID +EFIAPI +ArmArchTimerSetCompareVal ( + IN UINT64 Val + ) +{ + ArmArchTimerWriteReg (CntpCval, (VOID *)&Val); +} diff --git a/ArmPkg/Library/ArmGenericTimerPhyCounterLib/ArmGenericTimerPhyCounterLib.inf b/ArmPkg/Library/ArmGenericTimerPhyCounterLib/ArmGenericTimerPhyCounterLib.inf new file mode 100644 index 000000000000..c962925cfa39 --- /dev/null +++ b/ArmPkg/Library/ArmGenericTimerPhyCounterLib/ArmGenericTimerPhyCounterLib.inf @@ -0,0 +1,33 @@ +#/** @file +# Implement ArmGenericTimerCounterLib using the physical timer +# +# Copyright (c) 2014, Linaro Ltd. All rights reserved.
+# +# 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. +# +# +#**/ + +[Defines] + INF_VERSION = 0x00010005 + BASE_NAME = ArmGenericTimerPhyCounterLib + FILE_GUID = 7A07E61D-9967-407F-AE85-2EB0B50BEF2C + MODULE_TYPE = BASE + VERSION_STRING = 1.0 + LIBRARY_CLASS = ArmGenericTimerCounterLib + +[Sources] + ArmGenericTimerPhyCounterLib.c + +[Packages] + MdePkg/MdePkg.dec + ArmPkg/ArmPkg.dec + +[LibraryClasses] + ArmLib + BaseLib -- 1.8.3.2 ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel