Diff: scmRTOS/CortexM3/OS_Target_cpp.cpp

Revision:

0:331db0b44b67

diff -r 000000000000 -r 331db0b44b67 scmRTOS/CortexM3/OS_Target_cpp.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scmRTOS/CortexM3/OS_Target_cpp.cpp	Tue Sep 21 19:48:05 2010 +0000
@@ -0,0 +1,137 @@
+//******************************************************************************
+//*
+//*     FULLNAME:  Single-Chip Microcontroller Real-Time Operating System
+//*
+//*     NICKNAME:  scmRTOS
+//*
+//*     PROCESSOR: ARM Cortex-M3 
+//*
+//*     TOOLKIT:   EWARM (IAR Systems)
+//*               
+//*     PURPOSE:   Target Dependent Stuff Source
+//*               
+//*     Version: 3.10
+//*
+//*     $Revision: 195 $
+//*     $Date:: 2008-06-19 #$
+//*
+//*     Copyright (c) 2003-2010, Harry E. Zhurov
+//*
+//*     Permission is hereby granted, free of charge, to any person 
+//*     obtaining  a copy of this software and associated documentation 
+//*     files (the "Software"), to deal in the Software without restriction, 
+//*     including without limitation the rights to use, copy, modify, merge, 
+//*     publish, distribute, sublicense, and/or sell copies of the Software, 
+//*     and to permit persons to whom the Software is furnished to do so, 
+//*     subject to the following conditions:
+//*
+//*     The above copyright notice and this permission notice shall be included 
+//*     in all copies or substantial portions of the Software.
+//*
+//*     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+//*     EXPRESS  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
+//*     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+//*     IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 
+//*     CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
+//*     TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH 
+//*     THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//*
+//*     =================================================================
+//*     See http://scmrtos.sourceforge.net for documentation, latest
+//*     information, license and contact details.
+//*     =================================================================
+//*
+//******************************************************************************
+//*     Ported by Andrey Chuikin, Copyright (c) 2008-2010
+
+
+#include <scmRTOS.h>
+
+using namespace OS;
+
+//------------------------------------------------------------------------------
+//
+//       OS Process's constructor
+//
+//       Performs:  
+//           * initializing process data;
+//           * registering of the process in kernel;
+//           * preparing stack frame;
+//                  
+//
+TBaseProcess::TBaseProcess(TStackItem* Stack, word stack_size, TPriority pr, void (*exec)())
+    : StackPointer(Stack)
+    , StackSize(stack_size)
+    , Timeout(0)
+    , Priority(pr)
+{
+    Kernel.RegisterProcess(this);
+
+#ifdef DEBUG_STACK
+//---------------------------------------------------------------
+// Fill stack area with some value to be able later to define stack usage
+for (StackPointer-=(StackSize/sizeof(TStackItem)); StackPointer < Stack; *(StackPointer++) = STACK_FILL_CONST);
+#endif //DEBUG_STACK
+
+    //---------------------------------------------------------------
+    //
+    //  Prepare Process Stack Frame
+    //
+    *(--StackPointer)  = 0x01000000L;             // xPSR
+    *(--StackPointer)  = reinterpret_cast<dword>(exec); // Entry Point
+    StackPointer -= 14;                           // emulate "push R14,R12,R3,R2,R1,R0,R11-R4"
+    
+    // The code below can be used for debug purpose. In this case comment
+    // line above and uncomment block below.
+/*
+    *(--StackPointer)  = 0xFFFFFFFEL;             // R14 (LR) (init value will cause fault if ever used)
+    *(--StackPointer)  = 0x12121212L;             // R12
+    *(--StackPointer)  = 0x03030303L;             // R3
+    *(--StackPointer)  = 0x02020202L;             // R2
+    *(--StackPointer)  = 0x01010101L;             // R1
+    *(--StackPointer)  = 0x00000000L;             // R0
+
+                                                  // Remaining registers saved on process stack
+    *(--StackPointer)  = 0x11111111L;             // R11
+    *(--StackPointer)  = 0x10101010L;             // R10
+    *(--StackPointer)  = 0x09090909L;             // R9
+    *(--StackPointer)  = 0x08080808L;             // R8
+    *(--StackPointer)  = 0x07070707L;             // R7
+    *(--StackPointer)  = 0x06060606L;             // R6
+    *(--StackPointer)  = 0x05050505L;             // R5
+    *(--StackPointer)  = 0x04040404L;             // R4
+*/
+}
+//------------------------------------------------------------------------------
+//
+//   Idle Process
+//
+typedef process<prIDLE, scmRTOS_IDLE_PROCESS_STACK_SIZE> TIdleProcess;
+
+TIdleProcess IdleProcess;
+
+template<> OS_PROCESS void TIdleProcess::Exec()
+{
+    for(;;)
+    {
+        #if scmRTOS_IDLE_HOOK_ENABLE == 1
+        IdleProcessUserHook();
+        #endif
+    }
+}
+//------------------------------------------------------------------------------
+OS_INTERRUPT void OS::SysTick_Handler()
+{
+    scmRTOS_ISRW_TYPE ISR;
+
+    Kernel.SystemTimer();
+    
+#if scmRTOS_SYSTIMER_NEST_INTS_ENABLE == 0
+    DISABLE_NESTED_INTERRUPTS();
+#endif
+    
+#if scmRTOS_SYSTIMER_HOOK_ENABLE == 1
+    SystemTimerUserHook();
+#endif
+}
+//------------------------------------------------------------------------------