ArmPkg/Library/ArmGenericTimerPhyCounterLib/ArmGenericTimerPhyCounterLib.c

   1 /** @file
   2
   3   Copyright (c) 2011 - 2014, ARM Ltd. All rights reserved.<BR>
   4   Copyright (c) 2014, Linaro Ltd. All rights reserved.<BR>
   5
   6   SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #include <Library/ArmGenericTimerCounterLib.h>
  11 #include <Library/ArmLib.h>
  12
  13 VOID
  14 EFIAPI
  15 ArmGenericTimerEnableTimer (
  16   VOID
  17   )
  18 {
  19   UINTN TimerCtrlReg;
  20
  21   TimerCtrlReg = ArmReadCntpCtl ();
  22   TimerCtrlReg |= ARM_ARCH_TIMER_ENABLE;
  23   ArmWriteCntpCtl (TimerCtrlReg);
  24 }
  25
  26 VOID
  27 EFIAPI
  28 ArmGenericTimerReenableTimer (
  29   VOID
  30   )
  31 {
  32 }
  33
  34 VOID
  35 EFIAPI
  36 ArmGenericTimerDisableTimer (
  37   VOID
  38   )
  39 {
  40   UINTN TimerCtrlReg;
  41
  42   TimerCtrlReg = ArmReadCntpCtl ();
  43   TimerCtrlReg &= ~ARM_ARCH_TIMER_ENABLE;
  44   ArmWriteCntpCtl (TimerCtrlReg);
  45 }
  46
  47 VOID
  48 EFIAPI
  49 ArmGenericTimerSetTimerFreq (
  50   IN   UINTN  FreqInHz
  51   )
  52 {
  53   ArmWriteCntFrq (FreqInHz);
  54 }
  55
  56 UINTN
  57 EFIAPI
  58 ArmGenericTimerGetTimerFreq (
  59   VOID
  60   )
  61 {
  62   return ArmReadCntFrq ();
  63 }
  64
  65 UINTN
  66 EFIAPI
  67 ArmGenericTimerGetTimerVal (
  68   VOID
  69   )
  70 {
  71   return ArmReadCntpTval ();
  72 }
  73
  74
  75 VOID
  76 EFIAPI
  77 ArmGenericTimerSetTimerVal (
  78   IN   UINTN   Value
  79   )
  80 {
  81   ArmWriteCntpTval (Value);
  82 }
  83
  84 UINT64
  85 EFIAPI
  86 ArmGenericTimerGetSystemCount (
  87   VOID
  88   )
  89 {
  90   return ArmReadCntPct ();
  91 }
  92
  93 UINTN
  94 EFIAPI
  95 ArmGenericTimerGetTimerCtrlReg (
  96   VOID
  97   )
  98 {
  99   return ArmReadCntpCtl ();
 100 }
 101
 102 VOID
 103 EFIAPI
 104 ArmGenericTimerSetTimerCtrlReg (
 105   UINTN Value
 106   )
 107 {
 108   ArmWriteCntpCtl (Value);
 109 }
 110
 111 UINT64
 112 EFIAPI
 113 ArmGenericTimerGetCompareVal (
 114   VOID
 115   )
 116 {
 117   return ArmReadCntpCval ();
 118 }
 119
 120 VOID
 121 EFIAPI
 122 ArmGenericTimerSetCompareVal (
 123   IN   UINT64   Value
 124   )
 125 {
 126   ArmWriteCntpCval (Value);
 127 }