acpica-unix2-20130823
PANKOVs restructure

*** 3,13 ****
   * Module Name: evevent - Fixed Event handling and dispatch
   *
   *****************************************************************************/
  
  /*
!  * Copyright (C) 2000 - 2011, Intel Corp.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
--- 3,13 ----
   * Module Name: evevent - Fixed Event handling and dispatch
   *
   *****************************************************************************/
  
  /*
!  * Copyright (C) 2000 - 2013, Intel Corp.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
*** 46,55 ****
--- 46,57 ----
  #include "acevents.h"
  
  #define _COMPONENT          ACPI_EVENTS
          ACPI_MODULE_NAME    ("evevent")
  
+ #if (!ACPI_REDUCED_HARDWARE) /* Entire module */
+ 
  /* Local prototypes */
  
  static ACPI_STATUS
  AcpiEvFixedEventInitialize (
      void);
*** 79,88 ****
--- 81,97 ----
  
  
      ACPI_FUNCTION_TRACE (EvInitializeEvents);
  
  
+     /* If Hardware Reduced flag is set, there are no fixed events */
+ 
+     if (AcpiGbl_ReducedHardware)
+     {
+         return_ACPI_STATUS (AE_OK);
+     }
+ 
      /*
       * Initialize the Fixed and General Purpose Events. This is done prior to
       * enabling SCIs to prevent interrupts from occurring before the handlers
       * are installed.
       */
*** 126,135 ****
--- 135,151 ----
  
  
      ACPI_FUNCTION_TRACE (EvInstallXruptHandlers);
  
  
+     /* If Hardware Reduced flag is set, there is no ACPI h/w */
+ 
+     if (AcpiGbl_ReducedHardware)
+     {
+         return_ACPI_STATUS (AE_OK);
+     }
+ 
      /* Install the SCI handler */
  
      Status = AcpiEvInstallSciHandler ();
      if (ACPI_FAILURE (Status))
      {
*** 273,282 ****
--- 289,300 ----
   *
   * RETURN:      INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
   *
   * DESCRIPTION: Clears the status bit for the requested event, calls the
   *              handler that previously registered for the event.
+  *              NOTE: If there is no handler for the event, the event is
+  *              disabled to prevent further interrupts.
   *
   ******************************************************************************/
  
  static UINT32
  AcpiEvFixedEventDispatch (
*** 291,312 ****
      (void) AcpiWriteBitRegister (
              AcpiGbl_FixedEventInfo[Event].StatusRegisterId,
              ACPI_CLEAR_STATUS);
  
      /*
!      * Make sure we've got a handler. If not, report an error. The event is
!      * disabled to prevent further interrupts.
       */
!     if (NULL == AcpiGbl_FixedEventHandlers[Event].Handler)
      {
          (void) AcpiWriteBitRegister (
                  AcpiGbl_FixedEventInfo[Event].EnableRegisterId,
                  ACPI_DISABLE_EVENT);
  
          ACPI_ERROR ((AE_INFO,
!             "No installed handler for fixed event [0x%08X]",
!             Event));
  
          return (ACPI_INTERRUPT_NOT_HANDLED);
      }
  
      /* Invoke the Fixed Event handler */
--- 309,330 ----
      (void) AcpiWriteBitRegister (
              AcpiGbl_FixedEventInfo[Event].StatusRegisterId,
              ACPI_CLEAR_STATUS);
  
      /*
!      * Make sure that a handler exists. If not, report an error
!      * and disable the event to prevent further interrupts.
       */
!     if (!AcpiGbl_FixedEventHandlers[Event].Handler)
      {
          (void) AcpiWriteBitRegister (
                  AcpiGbl_FixedEventInfo[Event].EnableRegisterId,
                  ACPI_DISABLE_EVENT);
  
          ACPI_ERROR ((AE_INFO,
!             "No installed handler for fixed event - %s (%u), disabling",
!             AcpiUtGetEventName (Event), Event));
  
          return (ACPI_INTERRUPT_NOT_HANDLED);
      }
  
      /* Invoke the Fixed Event handler */
*** 313,318 ****
  
      return ((AcpiGbl_FixedEventHandlers[Event].Handler)(
                  AcpiGbl_FixedEventHandlers[Event].Context));
  }
  
! 
--- 331,336 ----
  
      return ((AcpiGbl_FixedEventHandlers[Event].Handler)(
                  AcpiGbl_FixedEventHandlers[Event].Context));
  }
  
! #endif /* !ACPI_REDUCED_HARDWARE */