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125 lines
5.0 KiB
125 lines
5.0 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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#ifndef __KERNEL_H
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#define __KERNEL_H
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#include <stddef.h>
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#include <stdint.h>
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#include <stdbool.h>
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typedef struct heap *heap_t;
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typedef struct tcb *thread_t;
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typedef struct sem *sem_t;
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typedef struct event *event_t;
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typedef struct mutex *mutex_t;
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typedef struct cond *cond_t;
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/******************************************************************************
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* kernel
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******************************************************************************/
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void kernel_init(void *heap_addr, uint32_t heap_size);
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void kernel_start(void);
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uint32_t kernel_version(void);
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void kernel_idle(void);
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uint32_t kernel_idle_time(void);
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void kernel_tick(uint32_t time);
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uint32_t kernel_tick_count(void);
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uint64_t kernel_tick_count64(void);
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/******************************************************************************
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* heap
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******************************************************************************/
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heap_t heap_create(void *addr, uint32_t size);
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void *heap_alloc(heap_t heap, uint32_t size);
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void heap_free(heap_t heap, void *mem);
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void heap_usage(heap_t heap, uint32_t *used, uint32_t *free);
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/******************************************************************************
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* thread
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******************************************************************************/
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#define THREAD_PRIORITY_HIGHEST 7
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#define THREAD_PRIORITY_HIGHER 6
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#define THREAD_PRIORITY_HIGH 5
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#define THREAD_PRIORITY_NORMAL 4
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#define THREAD_PRIORITY_LOW 3
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#define THREAD_PRIORITY_LOWER 2
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#define THREAD_PRIORITY_LOWEST 1
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#define THREAD_PRIORITY_IDLE 0
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thread_t thread_create(void (*entry)(void*), void *arg, uint32_t stack_size);
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void thread_delete(thread_t thread);
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void thread_yield(void);
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void thread_sleep(uint32_t time);
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void thread_exit(void);
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thread_t thread_self(void);
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uint32_t thread_time(thread_t thread);
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void thread_set_priority(thread_t thread, uint32_t prio);
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uint32_t thread_get_priority(thread_t thread);
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#define sleep(x) thread_sleep(x)
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/******************************************************************************
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* semaphore
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******************************************************************************/
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sem_t sem_create(uint32_t value);
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void sem_delete(sem_t sem);
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void sem_post(sem_t sem);
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void sem_wait(sem_t sem);
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uint32_t sem_timed_wait(sem_t sem, uint32_t timeout);
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uint32_t sem_value(sem_t sem);
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/******************************************************************************
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* event
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******************************************************************************/
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event_t event_create(bool auto_reset);
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void event_delete(event_t event);
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void event_set(event_t event);
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void event_reset(event_t event);
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void event_wait(event_t event);
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uint32_t event_timed_wait(event_t event, uint32_t timeout);
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#define event_clear(event) event_reset(event)
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/******************************************************************************
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* mutex
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******************************************************************************/
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mutex_t mutex_create(void);
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void mutex_delete(mutex_t mutex);
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void mutex_lock(mutex_t mutex);
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void mutex_unlock(mutex_t mutex);
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bool mutex_try_lock(mutex_t mutex);
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/******************************************************************************
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* condition variable
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******************************************************************************/
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cond_t cond_create(void);
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void cond_delete(cond_t cond);
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void cond_signal(cond_t cond);
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void cond_broadcast(cond_t cond);
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void cond_wait(cond_t cond, mutex_t mutex);
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uint32_t cond_timed_wait(cond_t cond, mutex_t mutex, uint32_t timeout);
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#endif
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