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93 lines
2.5 KiB
93 lines
2.5 KiB
5 months ago
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/******************************************************************************
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* Copyright (c) 2015-2024 jiangxiaogang<kerndev@foxmail.com>
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*
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* This file is part of KLite distribution.
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*
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* KLite is free software, you can redistribute it and/or modify it under
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* the MIT Licence.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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******************************************************************************/
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#include "internal.h"
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#include "kernel.h"
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#define MAKE_VERSION_CODE(a,b,c) ((a<<24)|(b<<16)|(c))
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#define KERNEL_VERSION_CODE MAKE_VERSION_CODE(5,1,0)
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static uint64_t m_tick_count;
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static thread_t m_idle_thread;
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void kernel_init(void *heap_addr, uint32_t heap_size)
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{
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m_tick_count = 0;
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m_idle_thread = NULL;
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cpu_sys_init();
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sched_init();
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heap_create(heap_addr, heap_size);
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}
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void kernel_start(void)
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{
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sched_switch();
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cpu_sys_start();
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}
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void kernel_idle(void)
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{
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void thread_clean_up(void);
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m_idle_thread = thread_self();
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thread_set_priority(m_idle_thread, THREAD_PRIORITY_IDLE);
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while(1)
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{
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thread_clean_up();
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cpu_enter_critical();
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sched_idle();
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cpu_leave_critical();
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}
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}
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uint32_t kernel_idle_time(void)
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{
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return m_idle_thread ? thread_time(m_idle_thread) : 0;
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}
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void kernel_tick(uint32_t time)
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{
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m_tick_count += time;
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cpu_enter_critical();
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sched_timing(time);
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sched_preempt(true);
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cpu_leave_critical();
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}
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uint32_t kernel_tick_count(void)
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{
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return (uint32_t)m_tick_count;
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}
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uint64_t kernel_tick_count64(void)
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{
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return m_tick_count;
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}
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uint32_t kernel_version(void)
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{
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return KERNEL_VERSION_CODE;
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}
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