ARM Packages: Fixed line endings

This large code change only modifies the line endings to be CRLF to be
compliant with the EDK2 coding convention document.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14088 6f19259b-4bc3-4df7-8a09-765794883524

2 files changed, 433 insertions, 433 deletions

diff --git a/Omap35xxPkg/TimerDxe/Timer.c b/Omap35xxPkg/TimerDxe/Timer.c
index d0ea973509..bc3d9b0aba 100644
--- a/Omap35xxPkg/TimerDxe/Timer.c
+++ b/Omap35xxPkg/TimerDxe/Timer.c
@@ -1,376 +1,376 @@
-/** @file
-  Template for Timer Architecture Protocol driver of the ARM flavor
-
-  Copyright (c) 2008 - 2009, Apple Inc. 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 <PiDxe.h>
-
-#include <Library/BaseLib.h>
-#include <Library/DebugLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiLib.h>
-#include <Library/PcdLib.h>
-#include <Library/IoLib.h>
-#include <Library/OmapLib.h>
-
-#include <Protocol/Timer.h>
-#include <Protocol/HardwareInterrupt.h>
-
-#include <Omap3530/Omap3530.h>
-
-
-// The notification function to call on every timer interrupt.
-volatile EFI_TIMER_NOTIFY      mTimerNotifyFunction   = (EFI_TIMER_NOTIFY)NULL;
-
-
-// The current period of the timer interrupt
-volatile UINT64 mTimerPeriod = 0;
-
-// Cached copy of the Hardware Interrupt protocol instance
-EFI_HARDWARE_INTERRUPT_PROTOCOL *gInterrupt = NULL;
-
-// Cached registers
-volatile UINT32 TISR;
-volatile UINT32 TCLR;
-volatile UINT32 TLDR;
-volatile UINT32 TCRR;
-volatile UINT32 TIER;
-
-// Cached interrupt vector
-volatile UINTN  gVector;
-
-
-/**
-
-  C Interrupt Handler calledin the interrupt context when Source interrupt is active.
-
-
-  @param Source         Source of the interrupt. Hardware routing off a specific platform defines
-                        what source means.
-
-  @param SystemContext  Pointer to system register context. Mostly used by debuggers and will
-                        update the system context after the return from the interrupt if 
-                        modified. Don't change these values unless you know what you are doing
-
-**/
-VOID
-EFIAPI
-TimerInterruptHandler (
-  IN  HARDWARE_INTERRUPT_SOURCE   Source,
-  IN  EFI_SYSTEM_CONTEXT          SystemContext       
-  )
-{
-  EFI_TPL OriginalTPL;
-
-
-
-  //
-  // DXE core uses this callback for the EFI timer tick. The DXE core uses locks 
-  // that raise to TPL_HIGH and then restore back to current level. Thus we need
-  // to make sure TPL level is set to TPL_HIGH while we are handling the timer tick. 
-  //
-  OriginalTPL = gBS->RaiseTPL (TPL_HIGH_LEVEL);
-
-  if (mTimerNotifyFunction) {
-    mTimerNotifyFunction(mTimerPeriod);
-  }
-
-  // Clear all timer interrupts
-  MmioWrite32 (TISR, TISR_CLEAR_ALL);  
-
-  // Poll interrupt status bits to ensure clearing
-  while ((MmioRead32 (TISR) & TISR_ALL_INTERRUPT_MASK) != TISR_NO_INTERRUPTS_PENDING);
-
-  gBS->RestoreTPL (OriginalTPL);
-}
-
-/**
-  This function registers the handler NotifyFunction so it is called every time 
-  the timer interrupt fires.  It also passes the amount of time since the last 
-  handler call to the NotifyFunction.  If NotifyFunction is NULL, then the 
-  handler is unregistered.  If the handler is registered, then EFI_SUCCESS is 
-  returned.  If the CPU does not support registering a timer interrupt handler, 
-  then EFI_UNSUPPORTED is returned.  If an attempt is made to register a handler 
-  when a handler is already registered, then EFI_ALREADY_STARTED is returned.  
-  If an attempt is made to unregister a handler when a handler is not registered, 
-  then EFI_INVALID_PARAMETER is returned.  If an error occurs attempting to 
-  register the NotifyFunction with the timer interrupt, then EFI_DEVICE_ERROR 
-  is returned.
-
-  @param  This             The EFI_TIMER_ARCH_PROTOCOL instance.
-  @param  NotifyFunction   The function to call when a timer interrupt fires. This
-                           function executes at TPL_HIGH_LEVEL. The DXE Core will
-                           register a handler for the timer interrupt, so it can know
-                           how much time has passed. This information is used to
-                           signal timer based events. NULL will unregister the handler.
-  @retval EFI_SUCCESS           The timer handler was registered.
-  @retval EFI_UNSUPPORTED       The platform does not support timer interrupts.
-  @retval EFI_ALREADY_STARTED   NotifyFunction is not NULL, and a handler is already
-                                registered.
-  @retval EFI_INVALID_PARAMETER NotifyFunction is NULL, and a handler was not
-                                previously registered.
-  @retval EFI_DEVICE_ERROR      The timer handler could not be registered.
-
-**/
-EFI_STATUS
-EFIAPI
-TimerDriverRegisterHandler (
-  IN EFI_TIMER_ARCH_PROTOCOL  *This,
-  IN EFI_TIMER_NOTIFY         NotifyFunction
-  )
-{
-  if ((NotifyFunction == NULL) && (mTimerNotifyFunction == NULL)) {
-    return EFI_INVALID_PARAMETER;
-  }
-
-  if ((NotifyFunction != NULL) && (mTimerNotifyFunction != NULL)) {
-    return EFI_ALREADY_STARTED;
-  }
-
-  mTimerNotifyFunction = NotifyFunction;
-
-  return EFI_SUCCESS;
-}
-
-/**
-
-  This function adjusts the period of timer interrupts to the value specified 
-  by TimerPeriod.  If the timer period is updated, then the selected timer 
-  period is stored in EFI_TIMER.TimerPeriod, and EFI_SUCCESS is returned.  If 
-  the timer hardware is not programmable, then EFI_UNSUPPORTED is returned.  
-  If an error occurs while attempting to update the timer period, then the 
-  timer hardware will be put back in its state prior to this call, and 
-  EFI_DEVICE_ERROR is returned.  If TimerPeriod is 0, then the timer interrupt 
-  is disabled.  This is not the same as disabling the CPU's interrupts.  
-  Instead, it must either turn off the timer hardware, or it must adjust the 
-  interrupt controller so that a CPU interrupt is not generated when the timer 
-  interrupt fires. 
-
-  @param  This             The EFI_TIMER_ARCH_PROTOCOL instance.
-  @param  TimerPeriod      The rate to program the timer interrupt in 100 nS units. If
-                           the timer hardware is not programmable, then EFI_UNSUPPORTED is
-                           returned. If the timer is programmable, then the timer period
-                           will be rounded up to the nearest timer period that is supported
-                           by the timer hardware. If TimerPeriod is set to 0, then the
-                           timer interrupts will be disabled.
-
-
-  @retval EFI_SUCCESS           The timer period was changed.
-  @retval EFI_UNSUPPORTED       The platform cannot change the period of the timer interrupt.
-  @retval EFI_DEVICE_ERROR      The timer period could not be changed due to a device error.
-
-**/
-EFI_STATUS
-EFIAPI
-TimerDriverSetTimerPeriod (
-  IN EFI_TIMER_ARCH_PROTOCOL  *This,
-  IN UINT64                   TimerPeriod
-  )
-{
-  EFI_STATUS  Status;
-  UINT64      TimerCount;
-  INT32       LoadValue;
-  
-  if (TimerPeriod == 0) {
-    // Turn off GPTIMER3
-    MmioWrite32 (TCLR, TCLR_ST_OFF);
-    
-    Status = gInterrupt->DisableInterruptSource(gInterrupt, gVector);    
-  } else {  
-    // Calculate required timer count
-    TimerCount = DivU64x32(TimerPeriod * 100, PcdGet32(PcdEmbeddedPerformanceCounterPeriodInNanoseconds));
-
-    // Set GPTIMER3 Load register
-    LoadValue = (INT32) -TimerCount;
-    MmioWrite32 (TLDR, LoadValue);
-    MmioWrite32 (TCRR, LoadValue);
-
-    // Enable Overflow interrupt
-    MmioWrite32 (TIER, TIER_TCAR_IT_DISABLE | TIER_OVF_IT_ENABLE | TIER_MAT_IT_DISABLE);
-
-    // Turn on GPTIMER3, it will reload at overflow
-    MmioWrite32 (TCLR, TCLR_AR_AUTORELOAD | TCLR_ST_ON);
-
-    Status = gInterrupt->EnableInterruptSource(gInterrupt, gVector);    
-  }
-
-  //
-  // Save the new timer period
-  //
-  mTimerPeriod = TimerPeriod;
-  return Status;
-}
-
-
-/**
-  This function retrieves the period of timer interrupts in 100 ns units, 
-  returns that value in TimerPeriod, and returns EFI_SUCCESS.  If TimerPeriod 
-  is NULL, then EFI_INVALID_PARAMETER is returned.  If a TimerPeriod of 0 is 
-  returned, then the timer is currently disabled.
-
-  @param  This             The EFI_TIMER_ARCH_PROTOCOL instance.
-  @param  TimerPeriod      A pointer to the timer period to retrieve in 100 ns units. If
-                           0 is returned, then the timer is currently disabled.
-
-
-  @retval EFI_SUCCESS           The timer period was returned in TimerPeriod.
-  @retval EFI_INVALID_PARAMETER TimerPeriod is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-TimerDriverGetTimerPeriod (
-  IN EFI_TIMER_ARCH_PROTOCOL   *This,
-  OUT UINT64                   *TimerPeriod
-  )
-{
-  if (TimerPeriod == NULL) {
-    return EFI_INVALID_PARAMETER;
-  }
-
-  *TimerPeriod = mTimerPeriod;
-  return EFI_SUCCESS;
-}
-
-/**
-  This function generates a soft timer interrupt. If the platform does not support soft 
-  timer interrupts, then EFI_UNSUPPORTED is returned. Otherwise, EFI_SUCCESS is returned. 
-  If a handler has been registered through the EFI_TIMER_ARCH_PROTOCOL.RegisterHandler() 
-  service, then a soft timer interrupt will be generated. If the timer interrupt is 
-  enabled when this service is called, then the registered handler will be invoked. The 
-  registered handler should not be able to distinguish a hardware-generated timer 
-  interrupt from a software-generated timer interrupt.
-
-  @param  This             The EFI_TIMER_ARCH_PROTOCOL instance.
-
-  @retval EFI_SUCCESS           The soft timer interrupt was generated.
-  @retval EFI_UNSUPPORTED       The platform does not support the generation of soft timer interrupts.
-
-**/
-EFI_STATUS
-EFIAPI
-TimerDriverGenerateSoftInterrupt (
-  IN EFI_TIMER_ARCH_PROTOCOL  *This
-  )
-{
-  return EFI_UNSUPPORTED;
-}
-
-
-/**
-  Interface stucture for the Timer Architectural Protocol.
-
-  @par Protocol Description:
-  This protocol provides the services to initialize a periodic timer 
-  interrupt, and to register a handler that is called each time the timer
-  interrupt fires.  It may also provide a service to adjust the rate of the
-  periodic timer interrupt.  When a timer interrupt occurs, the handler is 
-  passed the amount of time that has passed since the previous timer 
-  interrupt.
-
-  @param RegisterHandler
-  Registers a handler that will be called each time the 
-  timer interrupt fires.  TimerPeriod defines the minimum 
-  time between timer interrupts, so TimerPeriod will also 
-  be the minimum time between calls to the registered 
-  handler.
-
-  @param SetTimerPeriod
-  Sets the period of the timer interrupt in 100 nS units.  
-  This function is optional, and may return EFI_UNSUPPORTED.  
-  If this function is supported, then the timer period will 
-  be rounded up to the nearest supported timer period.
-
-
-  @param GetTimerPeriod
-  Retrieves the period of the timer interrupt in 100 nS units.
-
-  @param GenerateSoftInterrupt
-  Generates a soft timer interrupt that simulates the firing of 
-  the timer interrupt. This service can be used to invoke the   registered handler if the timer interrupt has been masked for 
-  a period of time.
-
-**/
-EFI_TIMER_ARCH_PROTOCOL   gTimer = {
-  TimerDriverRegisterHandler,
-  TimerDriverSetTimerPeriod,
-  TimerDriverGetTimerPeriod,
-  TimerDriverGenerateSoftInterrupt
-};
-
-
-/**
-  Initialize the state information for the Timer Architectural Protocol and
-  the Timer Debug support protocol that allows the debugger to break into a
-  running program.
-
-  @param  ImageHandle   of the loaded driver
-  @param  SystemTable   Pointer to the System Table
-
-  @retval EFI_SUCCESS           Protocol registered
-  @retval EFI_OUT_OF_RESOURCES  Cannot allocate protocol data structure
-  @retval EFI_DEVICE_ERROR      Hardware problems
-
-**/
-EFI_STATUS
-EFIAPI
-TimerInitialize (
-  IN EFI_HANDLE         ImageHandle,
-  IN EFI_SYSTEM_TABLE   *SystemTable
-  )
-{
-  EFI_HANDLE  Handle = NULL;
-  EFI_STATUS  Status;
-  UINT32      TimerBaseAddress;
-
-  // Find the interrupt controller protocol.  ASSERT if not found.
-  Status = gBS->LocateProtocol (&gHardwareInterruptProtocolGuid, NULL, (VOID **)&gInterrupt);
-  ASSERT_EFI_ERROR (Status);
-
-  // Set up the timer registers
-  TimerBaseAddress = TimerBase (FixedPcdGet32(PcdOmap35xxArchTimer));
-  TISR = TimerBaseAddress + GPTIMER_TISR;
-  TCLR = TimerBaseAddress + GPTIMER_TCLR;
-  TLDR = TimerBaseAddress + GPTIMER_TLDR;
-  TCRR = TimerBaseAddress + GPTIMER_TCRR;
-  TIER = TimerBaseAddress + GPTIMER_TIER;
-
-  // Disable the timer
-  Status = TimerDriverSetTimerPeriod (&gTimer, 0);
-  ASSERT_EFI_ERROR (Status);
-
-  // Install interrupt handler
-  gVector = InterruptVectorForTimer (FixedPcdGet32(PcdOmap35xxArchTimer));
-  Status = gInterrupt->RegisterInterruptSource (gInterrupt, gVector, TimerInterruptHandler);
-  ASSERT_EFI_ERROR (Status);
-
-  // Turn on the functional clock for Timer
-  MmioOr32 (CM_FCLKEN_PER, CM_FCLKEN_PER_EN_GPT3_ENABLE);
-
-  // Set up default timer
-  Status = TimerDriverSetTimerPeriod (&gTimer, FixedPcdGet32(PcdTimerPeriod));
-  ASSERT_EFI_ERROR (Status);
-
-  // Install the Timer Architectural Protocol onto a new handle
-  Status = gBS->InstallMultipleProtocolInterfaces (
-                  &Handle,
-                  &gEfiTimerArchProtocolGuid,      &gTimer,
-                  NULL
-                  );
-  ASSERT_EFI_ERROR(Status);
-
-  return Status;
-}
-
+/** @file

+  Template for Timer Architecture Protocol driver of the ARM flavor

+

+  Copyright (c) 2008 - 2009, Apple Inc. 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 <PiDxe.h>

+

+#include <Library/BaseLib.h>

+#include <Library/DebugLib.h>

+#include <Library/BaseMemoryLib.h>

+#include <Library/UefiBootServicesTableLib.h>

+#include <Library/UefiLib.h>

+#include <Library/PcdLib.h>

+#include <Library/IoLib.h>

+#include <Library/OmapLib.h>

+

+#include <Protocol/Timer.h>

+#include <Protocol/HardwareInterrupt.h>

+

+#include <Omap3530/Omap3530.h>

+

+

+// The notification function to call on every timer interrupt.

+volatile EFI_TIMER_NOTIFY      mTimerNotifyFunction   = (EFI_TIMER_NOTIFY)NULL;

+

+

+// The current period of the timer interrupt

+volatile UINT64 mTimerPeriod = 0;

+

+// Cached copy of the Hardware Interrupt protocol instance

+EFI_HARDWARE_INTERRUPT_PROTOCOL *gInterrupt = NULL;

+

+// Cached registers

+volatile UINT32 TISR;

+volatile UINT32 TCLR;

+volatile UINT32 TLDR;

+volatile UINT32 TCRR;

+volatile UINT32 TIER;

+

+// Cached interrupt vector

+volatile UINTN  gVector;

+

+

+/**

+

+  C Interrupt Handler calledin the interrupt context when Source interrupt is active.

+

+

+  @param Source         Source of the interrupt. Hardware routing off a specific platform defines

+                        what source means.

+

+  @param SystemContext  Pointer to system register context. Mostly used by debuggers and will

+                        update the system context after the return from the interrupt if 

+                        modified. Don't change these values unless you know what you are doing

+

+**/

+VOID

+EFIAPI

+TimerInterruptHandler (

+  IN  HARDWARE_INTERRUPT_SOURCE   Source,

+  IN  EFI_SYSTEM_CONTEXT          SystemContext       

+  )

+{

+  EFI_TPL OriginalTPL;

+

+

+

+  //

+  // DXE core uses this callback for the EFI timer tick. The DXE core uses locks 

+  // that raise to TPL_HIGH and then restore back to current level. Thus we need

+  // to make sure TPL level is set to TPL_HIGH while we are handling the timer tick. 

+  //

+  OriginalTPL = gBS->RaiseTPL (TPL_HIGH_LEVEL);

+

+  if (mTimerNotifyFunction) {

+    mTimerNotifyFunction(mTimerPeriod);

+  }

+

+  // Clear all timer interrupts

+  MmioWrite32 (TISR, TISR_CLEAR_ALL);  

+

+  // Poll interrupt status bits to ensure clearing

+  while ((MmioRead32 (TISR) & TISR_ALL_INTERRUPT_MASK) != TISR_NO_INTERRUPTS_PENDING);

+

+  gBS->RestoreTPL (OriginalTPL);

+}

+

+/**

+  This function registers the handler NotifyFunction so it is called every time 

+  the timer interrupt fires.  It also passes the amount of time since the last 

+  handler call to the NotifyFunction.  If NotifyFunction is NULL, then the 

+  handler is unregistered.  If the handler is registered, then EFI_SUCCESS is 

+  returned.  If the CPU does not support registering a timer interrupt handler, 

+  then EFI_UNSUPPORTED is returned.  If an attempt is made to register a handler 

+  when a handler is already registered, then EFI_ALREADY_STARTED is returned.  

+  If an attempt is made to unregister a handler when a handler is not registered, 

+  then EFI_INVALID_PARAMETER is returned.  If an error occurs attempting to 

+  register the NotifyFunction with the timer interrupt, then EFI_DEVICE_ERROR 

+  is returned.

+

+  @param  This             The EFI_TIMER_ARCH_PROTOCOL instance.

+  @param  NotifyFunction   The function to call when a timer interrupt fires. This

+                           function executes at TPL_HIGH_LEVEL. The DXE Core will

+                           register a handler for the timer interrupt, so it can know

+                           how much time has passed. This information is used to

+                           signal timer based events. NULL will unregister the handler.

+  @retval EFI_SUCCESS           The timer handler was registered.

+  @retval EFI_UNSUPPORTED       The platform does not support timer interrupts.

+  @retval EFI_ALREADY_STARTED   NotifyFunction is not NULL, and a handler is already

+                                registered.

+  @retval EFI_INVALID_PARAMETER NotifyFunction is NULL, and a handler was not

+                                previously registered.

+  @retval EFI_DEVICE_ERROR      The timer handler could not be registered.

+

+**/

+EFI_STATUS

+EFIAPI

+TimerDriverRegisterHandler (

+  IN EFI_TIMER_ARCH_PROTOCOL  *This,

+  IN EFI_TIMER_NOTIFY         NotifyFunction

+  )

+{

+  if ((NotifyFunction == NULL) && (mTimerNotifyFunction == NULL)) {

+    return EFI_INVALID_PARAMETER;

+  }

+

+  if ((NotifyFunction != NULL) && (mTimerNotifyFunction != NULL)) {

+    return EFI_ALREADY_STARTED;

+  }

+

+  mTimerNotifyFunction = NotifyFunction;

+

+  return EFI_SUCCESS;

+}

+

+/**

+

+  This function adjusts the period of timer interrupts to the value specified 

+  by TimerPeriod.  If the timer period is updated, then the selected timer 

+  period is stored in EFI_TIMER.TimerPeriod, and EFI_SUCCESS is returned.  If 

+  the timer hardware is not programmable, then EFI_UNSUPPORTED is returned.  

+  If an error occurs while attempting to update the timer period, then the 

+  timer hardware will be put back in its state prior to this call, and 

+  EFI_DEVICE_ERROR is returned.  If TimerPeriod is 0, then the timer interrupt 

+  is disabled.  This is not the same as disabling the CPU's interrupts.  

+  Instead, it must either turn off the timer hardware, or it must adjust the 

+  interrupt controller so that a CPU interrupt is not generated when the timer 

+  interrupt fires. 

+

+  @param  This             The EFI_TIMER_ARCH_PROTOCOL instance.

+  @param  TimerPeriod      The rate to program the timer interrupt in 100 nS units. If

+                           the timer hardware is not programmable, then EFI_UNSUPPORTED is

+                           returned. If the timer is programmable, then the timer period

+                           will be rounded up to the nearest timer period that is supported

+                           by the timer hardware. If TimerPeriod is set to 0, then the

+                           timer interrupts will be disabled.

+

+

+  @retval EFI_SUCCESS           The timer period was changed.

+  @retval EFI_UNSUPPORTED       The platform cannot change the period of the timer interrupt.

+  @retval EFI_DEVICE_ERROR      The timer period could not be changed due to a device error.

+

+**/

+EFI_STATUS

+EFIAPI

+TimerDriverSetTimerPeriod (

+  IN EFI_TIMER_ARCH_PROTOCOL  *This,

+  IN UINT64                   TimerPeriod

+  )

+{

+  EFI_STATUS  Status;

+  UINT64      TimerCount;

+  INT32       LoadValue;

+  

+  if (TimerPeriod == 0) {

+    // Turn off GPTIMER3

+    MmioWrite32 (TCLR, TCLR_ST_OFF);

+    

+    Status = gInterrupt->DisableInterruptSource(gInterrupt, gVector);    

+  } else {  

+    // Calculate required timer count

+    TimerCount = DivU64x32(TimerPeriod * 100, PcdGet32(PcdEmbeddedPerformanceCounterPeriodInNanoseconds));

+

+    // Set GPTIMER3 Load register

+    LoadValue = (INT32) -TimerCount;

+    MmioWrite32 (TLDR, LoadValue);

+    MmioWrite32 (TCRR, LoadValue);

+

+    // Enable Overflow interrupt

+    MmioWrite32 (TIER, TIER_TCAR_IT_DISABLE | TIER_OVF_IT_ENABLE | TIER_MAT_IT_DISABLE);

+

+    // Turn on GPTIMER3, it will reload at overflow

+    MmioWrite32 (TCLR, TCLR_AR_AUTORELOAD | TCLR_ST_ON);

+

+    Status = gInterrupt->EnableInterruptSource(gInterrupt, gVector);    

+  }

+

+  //

+  // Save the new timer period

+  //

+  mTimerPeriod = TimerPeriod;

+  return Status;

+}

+

+

+/**

+  This function retrieves the period of timer interrupts in 100 ns units, 

+  returns that value in TimerPeriod, and returns EFI_SUCCESS.  If TimerPeriod 

+  is NULL, then EFI_INVALID_PARAMETER is returned.  If a TimerPeriod of 0 is 

+  returned, then the timer is currently disabled.

+

+  @param  This             The EFI_TIMER_ARCH_PROTOCOL instance.

+  @param  TimerPeriod      A pointer to the timer period to retrieve in 100 ns units. If

+                           0 is returned, then the timer is currently disabled.

+

+

+  @retval EFI_SUCCESS           The timer period was returned in TimerPeriod.

+  @retval EFI_INVALID_PARAMETER TimerPeriod is NULL.

+

+**/

+EFI_STATUS

+EFIAPI

+TimerDriverGetTimerPeriod (

+  IN EFI_TIMER_ARCH_PROTOCOL   *This,

+  OUT UINT64                   *TimerPeriod

+  )

+{

+  if (TimerPeriod == NULL) {

+    return EFI_INVALID_PARAMETER;

+  }

+

+  *TimerPeriod = mTimerPeriod;

+  return EFI_SUCCESS;

+}

+

+/**

+  This function generates a soft timer interrupt. If the platform does not support soft 

+  timer interrupts, then EFI_UNSUPPORTED is returned. Otherwise, EFI_SUCCESS is returned. 

+  If a handler has been registered through the EFI_TIMER_ARCH_PROTOCOL.RegisterHandler() 

+  service, then a soft timer interrupt will be generated. If the timer interrupt is 

+  enabled when this service is called, then the registered handler will be invoked. The 

+  registered handler should not be able to distinguish a hardware-generated timer 

+  interrupt from a software-generated timer interrupt.

+

+  @param  This             The EFI_TIMER_ARCH_PROTOCOL instance.

+

+  @retval EFI_SUCCESS           The soft timer interrupt was generated.

+  @retval EFI_UNSUPPORTED       The platform does not support the generation of soft timer interrupts.

+

+**/

+EFI_STATUS

+EFIAPI

+TimerDriverGenerateSoftInterrupt (

+  IN EFI_TIMER_ARCH_PROTOCOL  *This

+  )

+{

+  return EFI_UNSUPPORTED;

+}

+

+

+/**

+  Interface stucture for the Timer Architectural Protocol.

+

+  @par Protocol Description:

+  This protocol provides the services to initialize a periodic timer 

+  interrupt, and to register a handler that is called each time the timer

+  interrupt fires.  It may also provide a service to adjust the rate of the

+  periodic timer interrupt.  When a timer interrupt occurs, the handler is 

+  passed the amount of time that has passed since the previous timer 

+  interrupt.

+

+  @param RegisterHandler

+  Registers a handler that will be called each time the 

+  timer interrupt fires.  TimerPeriod defines the minimum 

+  time between timer interrupts, so TimerPeriod will also 

+  be the minimum time between calls to the registered 

+  handler.

+

+  @param SetTimerPeriod

+  Sets the period of the timer interrupt in 100 nS units.  

+  This function is optional, and may return EFI_UNSUPPORTED.  

+  If this function is supported, then the timer period will 

+  be rounded up to the nearest supported timer period.

+

+

+  @param GetTimerPeriod

+  Retrieves the period of the timer interrupt in 100 nS units.

+

+  @param GenerateSoftInterrupt

+  Generates a soft timer interrupt that simulates the firing of 

+  the timer interrupt. This service can be used to invoke the   registered handler if the timer interrupt has been masked for 

+  a period of time.

+

+**/

+EFI_TIMER_ARCH_PROTOCOL   gTimer = {

+  TimerDriverRegisterHandler,

+  TimerDriverSetTimerPeriod,

+  TimerDriverGetTimerPeriod,

+  TimerDriverGenerateSoftInterrupt

+};

+

+

+/**

+  Initialize the state information for the Timer Architectural Protocol and

+  the Timer Debug support protocol that allows the debugger to break into a

+  running program.

+

+  @param  ImageHandle   of the loaded driver

+  @param  SystemTable   Pointer to the System Table

+

+  @retval EFI_SUCCESS           Protocol registered

+  @retval EFI_OUT_OF_RESOURCES  Cannot allocate protocol data structure

+  @retval EFI_DEVICE_ERROR      Hardware problems

+

+**/

+EFI_STATUS

+EFIAPI

+TimerInitialize (

+  IN EFI_HANDLE         ImageHandle,

+  IN EFI_SYSTEM_TABLE   *SystemTable

+  )

+{

+  EFI_HANDLE  Handle = NULL;

+  EFI_STATUS  Status;

+  UINT32      TimerBaseAddress;

+

+  // Find the interrupt controller protocol.  ASSERT if not found.

+  Status = gBS->LocateProtocol (&gHardwareInterruptProtocolGuid, NULL, (VOID **)&gInterrupt);

+  ASSERT_EFI_ERROR (Status);

+

+  // Set up the timer registers

+  TimerBaseAddress = TimerBase (FixedPcdGet32(PcdOmap35xxArchTimer));

+  TISR = TimerBaseAddress + GPTIMER_TISR;

+  TCLR = TimerBaseAddress + GPTIMER_TCLR;

+  TLDR = TimerBaseAddress + GPTIMER_TLDR;

+  TCRR = TimerBaseAddress + GPTIMER_TCRR;

+  TIER = TimerBaseAddress + GPTIMER_TIER;

+

+  // Disable the timer

+  Status = TimerDriverSetTimerPeriod (&gTimer, 0);

+  ASSERT_EFI_ERROR (Status);

+

+  // Install interrupt handler

+  gVector = InterruptVectorForTimer (FixedPcdGet32(PcdOmap35xxArchTimer));

+  Status = gInterrupt->RegisterInterruptSource (gInterrupt, gVector, TimerInterruptHandler);

+  ASSERT_EFI_ERROR (Status);

+

+  // Turn on the functional clock for Timer

+  MmioOr32 (CM_FCLKEN_PER, CM_FCLKEN_PER_EN_GPT3_ENABLE);

+

+  // Set up default timer

+  Status = TimerDriverSetTimerPeriod (&gTimer, FixedPcdGet32(PcdTimerPeriod));

+  ASSERT_EFI_ERROR (Status);

+

+  // Install the Timer Architectural Protocol onto a new handle

+  Status = gBS->InstallMultipleProtocolInterfaces (

+                  &Handle,

+                  &gEfiTimerArchProtocolGuid,      &gTimer,

+                  NULL

+                  );

+  ASSERT_EFI_ERROR(Status);

+

+  return Status;

+}

+

diff --git a/Omap35xxPkg/TimerDxe/TimerDxe.inf b/Omap35xxPkg/TimerDxe/TimerDxe.inf
index 6cfab77570..2c5a2f7a4a 100644
--- a/Omap35xxPkg/TimerDxe/TimerDxe.inf
+++ b/Omap35xxPkg/TimerDxe/TimerDxe.inf
@@ -1,57 +1,57 @@
-#/** @file
-#  
-#    Component description file for Timer module
-#  
-#  Copyright (c) 2009, Apple Inc. 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.
-#  
-#**/
-
-[Defines]
-  INF_VERSION                    = 0x00010005
-  BASE_NAME                      = BeagleBoardTimerDxe
-  FILE_GUID                      = 6ddbf08b-cfc9-43cc-9e81-0784ba312ca0
-  MODULE_TYPE                    = DXE_DRIVER
-  VERSION_STRING                 = 1.0
-
-  ENTRY_POINT                    = TimerInitialize
-
-[Sources.common]
-  Timer.c
-
-[Packages]
-  Omap35xxPkg/Omap35xxPkg.dec
-  MdePkg/MdePkg.dec
-  EmbeddedPkg/EmbeddedPkg.dec
-  ArmPkg/ArmPkg.dec
-
-[LibraryClasses]
-  BaseLib
-  UefiRuntimeServicesTableLib
-  UefiLib
-  UefiBootServicesTableLib
-  BaseMemoryLib
-  DebugLib
-  UefiDriverEntryPoint
-  IoLib
-  OmapLib
-
-[Guids]
-
-[Protocols]
-  gEfiTimerArchProtocolGuid  
-  gHardwareInterruptProtocolGuid
-
-[Pcd.common]
-  gEmbeddedTokenSpaceGuid.PcdTimerPeriod
-  gEmbeddedTokenSpaceGuid.PcdEmbeddedPerformanceCounterPeriodInNanoseconds
-  gOmap35xxTokenSpaceGuid.PcdOmap35xxArchTimer
-
-[Depex]
-  gHardwareInterruptProtocolGuid
\ No newline at end of file
+#/** @file

+#  

+#    Component description file for Timer module

+#  

+#  Copyright (c) 2009, Apple Inc. 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.

+#  

+#**/

+

+[Defines]

+  INF_VERSION                    = 0x00010005

+  BASE_NAME                      = BeagleBoardTimerDxe

+  FILE_GUID                      = 6ddbf08b-cfc9-43cc-9e81-0784ba312ca0

+  MODULE_TYPE                    = DXE_DRIVER

+  VERSION_STRING                 = 1.0

+

+  ENTRY_POINT                    = TimerInitialize

+

+[Sources.common]

+  Timer.c

+

+[Packages]

+  Omap35xxPkg/Omap35xxPkg.dec

+  MdePkg/MdePkg.dec

+  EmbeddedPkg/EmbeddedPkg.dec

+  ArmPkg/ArmPkg.dec

+

+[LibraryClasses]

+  BaseLib

+  UefiRuntimeServicesTableLib

+  UefiLib

+  UefiBootServicesTableLib

+  BaseMemoryLib

+  DebugLib

+  UefiDriverEntryPoint

+  IoLib

+  OmapLib

+

+[Guids]

+

+[Protocols]

+  gEfiTimerArchProtocolGuid  

+  gHardwareInterruptProtocolGuid

+

+[Pcd.common]

+  gEmbeddedTokenSpaceGuid.PcdTimerPeriod

+  gEmbeddedTokenSpaceGuid.PcdEmbeddedPerformanceCounterPeriodInNanoseconds

+  gOmap35xxTokenSpaceGuid.PcdOmap35xxArchTimer

+

+[Depex]

+  gHardwareInterruptProtocolGuid
\ No newline at end of file