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--- /dev/null
+++ b/packages/io/wallclock/current/src/wallclock.cxx
@@ -0,0 +1,140 @@
+//==========================================================================
+//
+//      devs/wallclock/wallclock.cxx
+//
+//      Wallclock base
+//
+//==========================================================================
+//####COPYRIGHTBEGIN####
+//                                                                          
+// -------------------------------------------                              
+// The contents of this file are subject to the Red Hat eCos Public License 
+// Version 1.1 (the "License"); you may not use this file except in         
+// compliance with the License.  You may obtain a copy of the License at    
+// http://www.redhat.com/                                                   
+//                                                                          
+// Software distributed under the License is distributed on an "AS IS"      
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
+// License for the specific language governing rights and limitations under 
+// the License.                                                             
+//                                                                          
+// The Original Code is eCos - Embedded Configurable Operating System,      
+// released September 30, 1998.                                             
+//                                                                          
+// The Initial Developer of the Original Code is Red Hat.                   
+// Portions created by Red Hat are                                          
+// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
+// All Rights Reserved.                                                     
+// -------------------------------------------                              
+//                                                                          
+//####COPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):     jskov
+// Contributors:  jskov
+// Date:          2000-03-28
+// Purpose:       Wallclock base driver
+// Description:   This provides a generic wallclock base driver which
+//                relies on sub-drivers to provide the interface functions
+//                to the hardware device (see wallclock.hxx for details).
+//
+//                The driver can be configured to run in one of two modes:
+//                  init-get mode:
+//                    In this mode, the hardware driver only needs to
+//                    implement a function to read the hardware clock
+//                    and a (possibly empty) init function which makes
+//                    sure the hardware clock is properly initialized.
+//                    While the driver in this mode has a smaller memory
+//                    foot-print, it does not support battery-backed up
+//                    clocks.
+//
+//                  set-get mode:
+//                    Requires both set and get functions for the hardware
+//                    device. While bigger, it allows support of 
+//                    battery-backed up clocks.
+//
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+#include <pkgconf/kernel.h>             // Kernel config
+#include <pkgconf/wallclock.h>          // Wallclock device config
+
+#include <cyg/infra/cyg_type.h>         // Common type definitions and support
+
+#include <cyg/kernel/sched.inl>         // For lock/unlock 
+
+#include <cyg/io/wallclock.hxx>         // The WallClock API
+
+
+//-----------------------------------------------------------------------------
+// Local static variables
+
+static Cyg_WallClock wallclock_instance CYG_INIT_PRIORITY( CLOCK );
+
+#ifndef CYGSEM_WALLCLOCK_SET_GET_MODE
+static cyg_uint32 epoch_ticks;
+static cyg_uint32 epoch_time_stamp;
+#endif
+
+Cyg_WallClock *Cyg_WallClock::wallclock;
+
+//-----------------------------------------------------------------------------
+// Constructor
+
+Cyg_WallClock::Cyg_WallClock()
+{
+    // install instance pointer
+    wallclock = &wallclock_instance;
+
+#ifndef CYGSEM_WALLCLOCK_SET_GET_MODE
+    // Since set_hw_seconds is not going to write to the hardware
+    // clock, initialize it to a sane state now.
+    init_hw_seconds();
+#endif
+}
+
+//-----------------------------------------------------------------------------
+// Returns the number of seconds elapsed since 1970-01-01 00:00:00.
+// This may involve reading the hardware, so it may take anything up to
+// a second to complete.
+
+cyg_uint32 Cyg_WallClock::get_current_time()
+{
+    cyg_uint32 res;
+
+    Cyg_Scheduler::lock();
+
+#ifdef CYGSEM_WALLCLOCK_SET_GET_MODE
+    res = get_hw_seconds();
+#else
+    res = epoch_time_stamp + get_hw_seconds() - epoch_ticks;
+#endif
+
+    Cyg_Scheduler::unlock();
+
+    return res;
+}
+
+//-----------------------------------------------------------------------------
+// Sets the clock. Argument is seconds elapsed since 1970-01-01 00:00:00.
+// This may involve reading or writing to the hardware, so it may take
+// anything up to a second to complete.
+void Cyg_WallClock::set_current_time( cyg_uint32 time_stamp )
+{
+    Cyg_Scheduler::lock();
+
+#ifdef CYGSEM_WALLCLOCK_SET_GET_MODE
+    set_hw_seconds(time_stamp);
+#else
+    epoch_time_stamp    = time_stamp;
+    epoch_ticks         = get_hw_seconds();
+#endif
+
+    Cyg_Scheduler::unlock();
+}
+
+//-----------------------------------------------------------------------------
+// End of devs/wallclock/wallclock.cxx