ArmPkg/Library/ArmGenericTimerVirtCounterLib/ArmGenericTimerVirtCounterLib.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  = ArmReadCntvCtl ();
  22   TimerCtrlReg |= ARM_ARCH_TIMER_ENABLE;
  23   ArmWriteCntvCtl (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  = ArmReadCntvCtl ();
  43   TimerCtrlReg &= ~ARM_ARCH_TIMER_ENABLE;
  44   ArmWriteCntvCtl (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 ArmReadCntvTval ();
  72 }
  73
  74 VOID
  75 EFIAPI
  76 ArmGenericTimerSetTimerVal (
  77   IN   UINTN  Value
  78   )
  79 {
  80   ArmWriteCntvTval (Value);
  81 }
  82
  83 UINT64
  84 EFIAPI
  85 ArmGenericTimerGetSystemCount (
  86   VOID
  87   )
  88 {
  89   return ArmReadCntvCt ();
  90 }
  91
  92 UINTN
  93 EFIAPI
  94 ArmGenericTimerGetTimerCtrlReg (
  95   VOID
  96   )
  97 {
  98   return ArmReadCntvCtl ();
  99 }
 100
 101 VOID
 102 EFIAPI
 103 ArmGenericTimerSetTimerCtrlReg (
 104   UINTN  Value
 105   )
 106 {
 107   ArmWriteCntvCtl (Value);
 108 }
 109
 110 UINT64
 111 EFIAPI
 112 ArmGenericTimerGetCompareVal (
 113   VOID
 114   )
 115 {
 116   return ArmReadCntvCval ();
 117 }
 118
 119 VOID
 120 EFIAPI
 121 ArmGenericTimerSetCompareVal (
 122   IN   UINT64  Value
 123   )
 124 {
 125   ArmWriteCntvCval (Value);
 126 }