81 lines
2.2 KiB
C
81 lines
2.2 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: 2020-01-20 10:39:28
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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 <rthw.h>
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#include <arch.h>
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#include <log.h>
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rt_sem_t test_sem;
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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 irq_lock_thread_1(void *ARG_UNUSED(para))
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{
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uint32_t cpsr;
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uint32_t curcpsr;
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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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cpsr = rt_hw_interrupt_disable();
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rt_thread_delay(100);
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rt_sem_release(test_sem);
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rt_hw_interrupt_enable(cpsr);
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__log("comm = %s.", rt_thread_self()->name);
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}
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}
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static void irq_lock_thread_2(void *ARG_UNUSED(para))
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{
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uint32_t cpsr;
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while (1)
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{
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cpsr = rt_hw_interrupt_disable();
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rt_sem_take(test_sem, RT_WAITING_FOREVER);
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rt_hw_interrupt_enable(cpsr);
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__log("comm = %s.", rt_thread_self()->name);
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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 waitlock_yield(void)
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{
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test_sem = rt_sem_create("test_sem", 0, RT_IPC_FLAG_FIFO);
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rt_thread_t thread;
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thread = rt_thread_create("irq_lock_1", irq_lock_thread_1, RT_NULL, 0x1000, 1, 10);
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rt_thread_startup(thread);
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thread = rt_thread_create("irq_lock_2", irq_lock_thread_2, RT_NULL, 0x1000, 1, 10);
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rt_thread_startup(thread);
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}
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