81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
/*
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* =====================================================================================
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*
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* Filename: sched_irq.c
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*
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* Description: schedule during irq lock.
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*
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* Version: 2.0
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* Create: 2017-11-09 15:37:55
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* Revision: none
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* Compiler: gcc version 6.3.0 (crosstool-NG crosstool-ng-1.23.0)
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*
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* Author: caozilong@allwinnertech.com
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* Organization: BU1-PSW
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* Last Modified: 2020-03-02 16:25:32
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*
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* =====================================================================================
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*/
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#include <typedef.h>
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#include <rtthread.h>
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#include <preempt.h>
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#include <rthw.h>
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#include <arch.h>
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#include <log.h>
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/* ----------------------------------------------------------------------------*/
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/**
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* @brief irq_lock_thread
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*
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* @param para, not used.
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*/
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/* ----------------------------------------------------------------------------*/
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static void lock_thread_1(void *ARG_UNUSED(para))
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{
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//each task has its own cpsr context, so irq & fiq environt not shared.
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while (1)
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{
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rt_enter_critical();
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__log("comm = %s, level %d.", rt_thread_self()->name, preempt_level());
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rt_enter_critical();
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__log("comm = %s, level %d.", rt_thread_self()->name, preempt_level());
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rt_thread_delay(100);
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__log("comm = %s, level %d.", rt_thread_self()->name, preempt_level());
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rt_exit_critical();
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__log("comm = %s, level %d.", rt_thread_self()->name, preempt_level());
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rt_exit_critical();
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__log("comm = %s, level %d.", rt_thread_self()->name, preempt_level());
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}
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}
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static void lock_thread_2(void *ARG_UNUSED(para))
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{
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while (1)
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{
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rt_enter_critical();
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__log("comm = %s, level %d.", rt_thread_self()->name, preempt_level());
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rt_thread_delay(100);
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__log("comm = %s, level %d.", rt_thread_self()->name, preempt_level());
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rt_exit_critical();
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__log("comm = %s, level %d.", rt_thread_self()->name, preempt_level());
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}
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}
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/* ----------------------------------------------------------------------------*/
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/*
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* @brief schedule_in_irqlock <test pattern, Thread swith out when iterrupt
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* disable>
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*/
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/* ----------------------------------------------------------------------------*/
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void lock_yield(void)
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{
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rt_thread_t thread;
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thread = rt_thread_create("lock_1", lock_thread_1, RT_NULL, 0x1000, 1, 10);
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rt_thread_startup(thread);
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thread = rt_thread_create("lock_2", lock_thread_2, RT_NULL, 0x1000, 1, 10);
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rt_thread_startup(thread);
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}
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