Daniel Peter
/
RtosTest
scmRTOS/CortexM3/OS_Target_cpp.cpp@0:331db0b44b67, 2010-09-21 (annotated)
- Committer:
- mbed714
- Date:
- Tue Sep 21 19:48:05 2010 +0000
- Revision:
- 0:331db0b44b67
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed714 | 0:331db0b44b67 | 1 | //****************************************************************************** |
mbed714 | 0:331db0b44b67 | 2 | //* |
mbed714 | 0:331db0b44b67 | 3 | //* FULLNAME: Single-Chip Microcontroller Real-Time Operating System |
mbed714 | 0:331db0b44b67 | 4 | //* |
mbed714 | 0:331db0b44b67 | 5 | //* NICKNAME: scmRTOS |
mbed714 | 0:331db0b44b67 | 6 | //* |
mbed714 | 0:331db0b44b67 | 7 | //* PROCESSOR: ARM Cortex-M3 |
mbed714 | 0:331db0b44b67 | 8 | //* |
mbed714 | 0:331db0b44b67 | 9 | //* TOOLKIT: EWARM (IAR Systems) |
mbed714 | 0:331db0b44b67 | 10 | //* |
mbed714 | 0:331db0b44b67 | 11 | //* PURPOSE: Target Dependent Stuff Source |
mbed714 | 0:331db0b44b67 | 12 | //* |
mbed714 | 0:331db0b44b67 | 13 | //* Version: 3.10 |
mbed714 | 0:331db0b44b67 | 14 | //* |
mbed714 | 0:331db0b44b67 | 15 | //* $Revision: 195 $ |
mbed714 | 0:331db0b44b67 | 16 | //* $Date:: 2008-06-19 #$ |
mbed714 | 0:331db0b44b67 | 17 | //* |
mbed714 | 0:331db0b44b67 | 18 | //* Copyright (c) 2003-2010, Harry E. Zhurov |
mbed714 | 0:331db0b44b67 | 19 | //* |
mbed714 | 0:331db0b44b67 | 20 | //* Permission is hereby granted, free of charge, to any person |
mbed714 | 0:331db0b44b67 | 21 | //* obtaining a copy of this software and associated documentation |
mbed714 | 0:331db0b44b67 | 22 | //* files (the "Software"), to deal in the Software without restriction, |
mbed714 | 0:331db0b44b67 | 23 | //* including without limitation the rights to use, copy, modify, merge, |
mbed714 | 0:331db0b44b67 | 24 | //* publish, distribute, sublicense, and/or sell copies of the Software, |
mbed714 | 0:331db0b44b67 | 25 | //* and to permit persons to whom the Software is furnished to do so, |
mbed714 | 0:331db0b44b67 | 26 | //* subject to the following conditions: |
mbed714 | 0:331db0b44b67 | 27 | //* |
mbed714 | 0:331db0b44b67 | 28 | //* The above copyright notice and this permission notice shall be included |
mbed714 | 0:331db0b44b67 | 29 | //* in all copies or substantial portions of the Software. |
mbed714 | 0:331db0b44b67 | 30 | //* |
mbed714 | 0:331db0b44b67 | 31 | //* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
mbed714 | 0:331db0b44b67 | 32 | //* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
mbed714 | 0:331db0b44b67 | 33 | //* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
mbed714 | 0:331db0b44b67 | 34 | //* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
mbed714 | 0:331db0b44b67 | 35 | //* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
mbed714 | 0:331db0b44b67 | 36 | //* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH |
mbed714 | 0:331db0b44b67 | 37 | //* THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
mbed714 | 0:331db0b44b67 | 38 | //* |
mbed714 | 0:331db0b44b67 | 39 | //* ================================================================= |
mbed714 | 0:331db0b44b67 | 40 | //* See http://scmrtos.sourceforge.net for documentation, latest |
mbed714 | 0:331db0b44b67 | 41 | //* information, license and contact details. |
mbed714 | 0:331db0b44b67 | 42 | //* ================================================================= |
mbed714 | 0:331db0b44b67 | 43 | //* |
mbed714 | 0:331db0b44b67 | 44 | //****************************************************************************** |
mbed714 | 0:331db0b44b67 | 45 | //* Ported by Andrey Chuikin, Copyright (c) 2008-2010 |
mbed714 | 0:331db0b44b67 | 46 | |
mbed714 | 0:331db0b44b67 | 47 | |
mbed714 | 0:331db0b44b67 | 48 | #include <scmRTOS.h> |
mbed714 | 0:331db0b44b67 | 49 | |
mbed714 | 0:331db0b44b67 | 50 | using namespace OS; |
mbed714 | 0:331db0b44b67 | 51 | |
mbed714 | 0:331db0b44b67 | 52 | //------------------------------------------------------------------------------ |
mbed714 | 0:331db0b44b67 | 53 | // |
mbed714 | 0:331db0b44b67 | 54 | // OS Process's constructor |
mbed714 | 0:331db0b44b67 | 55 | // |
mbed714 | 0:331db0b44b67 | 56 | // Performs: |
mbed714 | 0:331db0b44b67 | 57 | // * initializing process data; |
mbed714 | 0:331db0b44b67 | 58 | // * registering of the process in kernel; |
mbed714 | 0:331db0b44b67 | 59 | // * preparing stack frame; |
mbed714 | 0:331db0b44b67 | 60 | // |
mbed714 | 0:331db0b44b67 | 61 | // |
mbed714 | 0:331db0b44b67 | 62 | TBaseProcess::TBaseProcess(TStackItem* Stack, word stack_size, TPriority pr, void (*exec)()) |
mbed714 | 0:331db0b44b67 | 63 | : StackPointer(Stack) |
mbed714 | 0:331db0b44b67 | 64 | , StackSize(stack_size) |
mbed714 | 0:331db0b44b67 | 65 | , Timeout(0) |
mbed714 | 0:331db0b44b67 | 66 | , Priority(pr) |
mbed714 | 0:331db0b44b67 | 67 | { |
mbed714 | 0:331db0b44b67 | 68 | Kernel.RegisterProcess(this); |
mbed714 | 0:331db0b44b67 | 69 | |
mbed714 | 0:331db0b44b67 | 70 | #ifdef DEBUG_STACK |
mbed714 | 0:331db0b44b67 | 71 | //--------------------------------------------------------------- |
mbed714 | 0:331db0b44b67 | 72 | // Fill stack area with some value to be able later to define stack usage |
mbed714 | 0:331db0b44b67 | 73 | for (StackPointer-=(StackSize/sizeof(TStackItem)); StackPointer < Stack; *(StackPointer++) = STACK_FILL_CONST); |
mbed714 | 0:331db0b44b67 | 74 | #endif //DEBUG_STACK |
mbed714 | 0:331db0b44b67 | 75 | |
mbed714 | 0:331db0b44b67 | 76 | //--------------------------------------------------------------- |
mbed714 | 0:331db0b44b67 | 77 | // |
mbed714 | 0:331db0b44b67 | 78 | // Prepare Process Stack Frame |
mbed714 | 0:331db0b44b67 | 79 | // |
mbed714 | 0:331db0b44b67 | 80 | *(--StackPointer) = 0x01000000L; // xPSR |
mbed714 | 0:331db0b44b67 | 81 | *(--StackPointer) = reinterpret_cast<dword>(exec); // Entry Point |
mbed714 | 0:331db0b44b67 | 82 | StackPointer -= 14; // emulate "push R14,R12,R3,R2,R1,R0,R11-R4" |
mbed714 | 0:331db0b44b67 | 83 | |
mbed714 | 0:331db0b44b67 | 84 | // The code below can be used for debug purpose. In this case comment |
mbed714 | 0:331db0b44b67 | 85 | // line above and uncomment block below. |
mbed714 | 0:331db0b44b67 | 86 | /* |
mbed714 | 0:331db0b44b67 | 87 | *(--StackPointer) = 0xFFFFFFFEL; // R14 (LR) (init value will cause fault if ever used) |
mbed714 | 0:331db0b44b67 | 88 | *(--StackPointer) = 0x12121212L; // R12 |
mbed714 | 0:331db0b44b67 | 89 | *(--StackPointer) = 0x03030303L; // R3 |
mbed714 | 0:331db0b44b67 | 90 | *(--StackPointer) = 0x02020202L; // R2 |
mbed714 | 0:331db0b44b67 | 91 | *(--StackPointer) = 0x01010101L; // R1 |
mbed714 | 0:331db0b44b67 | 92 | *(--StackPointer) = 0x00000000L; // R0 |
mbed714 | 0:331db0b44b67 | 93 | |
mbed714 | 0:331db0b44b67 | 94 | // Remaining registers saved on process stack |
mbed714 | 0:331db0b44b67 | 95 | *(--StackPointer) = 0x11111111L; // R11 |
mbed714 | 0:331db0b44b67 | 96 | *(--StackPointer) = 0x10101010L; // R10 |
mbed714 | 0:331db0b44b67 | 97 | *(--StackPointer) = 0x09090909L; // R9 |
mbed714 | 0:331db0b44b67 | 98 | *(--StackPointer) = 0x08080808L; // R8 |
mbed714 | 0:331db0b44b67 | 99 | *(--StackPointer) = 0x07070707L; // R7 |
mbed714 | 0:331db0b44b67 | 100 | *(--StackPointer) = 0x06060606L; // R6 |
mbed714 | 0:331db0b44b67 | 101 | *(--StackPointer) = 0x05050505L; // R5 |
mbed714 | 0:331db0b44b67 | 102 | *(--StackPointer) = 0x04040404L; // R4 |
mbed714 | 0:331db0b44b67 | 103 | */ |
mbed714 | 0:331db0b44b67 | 104 | } |
mbed714 | 0:331db0b44b67 | 105 | //------------------------------------------------------------------------------ |
mbed714 | 0:331db0b44b67 | 106 | // |
mbed714 | 0:331db0b44b67 | 107 | // Idle Process |
mbed714 | 0:331db0b44b67 | 108 | // |
mbed714 | 0:331db0b44b67 | 109 | typedef process<prIDLE, scmRTOS_IDLE_PROCESS_STACK_SIZE> TIdleProcess; |
mbed714 | 0:331db0b44b67 | 110 | |
mbed714 | 0:331db0b44b67 | 111 | TIdleProcess IdleProcess; |
mbed714 | 0:331db0b44b67 | 112 | |
mbed714 | 0:331db0b44b67 | 113 | template<> OS_PROCESS void TIdleProcess::Exec() |
mbed714 | 0:331db0b44b67 | 114 | { |
mbed714 | 0:331db0b44b67 | 115 | for(;;) |
mbed714 | 0:331db0b44b67 | 116 | { |
mbed714 | 0:331db0b44b67 | 117 | #if scmRTOS_IDLE_HOOK_ENABLE == 1 |
mbed714 | 0:331db0b44b67 | 118 | IdleProcessUserHook(); |
mbed714 | 0:331db0b44b67 | 119 | #endif |
mbed714 | 0:331db0b44b67 | 120 | } |
mbed714 | 0:331db0b44b67 | 121 | } |
mbed714 | 0:331db0b44b67 | 122 | //------------------------------------------------------------------------------ |
mbed714 | 0:331db0b44b67 | 123 | OS_INTERRUPT void OS::SysTick_Handler() |
mbed714 | 0:331db0b44b67 | 124 | { |
mbed714 | 0:331db0b44b67 | 125 | scmRTOS_ISRW_TYPE ISR; |
mbed714 | 0:331db0b44b67 | 126 | |
mbed714 | 0:331db0b44b67 | 127 | Kernel.SystemTimer(); |
mbed714 | 0:331db0b44b67 | 128 | |
mbed714 | 0:331db0b44b67 | 129 | #if scmRTOS_SYSTIMER_NEST_INTS_ENABLE == 0 |
mbed714 | 0:331db0b44b67 | 130 | DISABLE_NESTED_INTERRUPTS(); |
mbed714 | 0:331db0b44b67 | 131 | #endif |
mbed714 | 0:331db0b44b67 | 132 | |
mbed714 | 0:331db0b44b67 | 133 | #if scmRTOS_SYSTIMER_HOOK_ENABLE == 1 |
mbed714 | 0:331db0b44b67 | 134 | SystemTimerUserHook(); |
mbed714 | 0:331db0b44b67 | 135 | #endif |
mbed714 | 0:331db0b44b67 | 136 | } |
mbed714 | 0:331db0b44b67 | 137 | //------------------------------------------------------------------------------ |