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100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
/*
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* Copyright (C) 2013 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup core_internal
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* @{
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*
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* @file kernel_init.c
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* @brief Platform-independent kernel initilization
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*
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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*
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* @}
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <errno.h>
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#include "tcb.h"
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#include "kernel.h"
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#include "kernel_internal.h"
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#include "sched.h"
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#include "flags.h"
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#include "cpu.h"
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#include "lpm.h"
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#include "thread.h"
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#include "hwtimer.h"
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#define ENABLE_DEBUG (0)
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#include "debug.h"
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#ifdef MODULE_AUTO_INIT
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#include <auto_init.h>
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#endif
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volatile int lpm_prevent_sleep = 0;
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extern int main(void);
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static void *main_trampoline(void *arg)
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{
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(void) arg;
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#ifdef MODULE_AUTO_INIT
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auto_init();
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#endif
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main();
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return NULL;
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}
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static void *idle_thread(void *arg)
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{
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(void) arg;
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while (1) {
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if (lpm_prevent_sleep) {
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lpm_set(LPM_IDLE);
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}
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else {
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lpm_set(LPM_IDLE);
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/* lpm_set(LPM_SLEEP); */
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/* lpm_set(LPM_POWERDOWN); */
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}
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}
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return NULL;
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}
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const char *main_name = "main";
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const char *idle_name = "idle";
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static char main_stack[KERNEL_CONF_STACKSIZE_MAIN];
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static char idle_stack[KERNEL_CONF_STACKSIZE_IDLE];
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void kernel_init(void)
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{
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dINT();
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printf("kernel_init(): This is RIOT! (Version: %s)\n", RIOT_VERSION);
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hwtimer_init();
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if (thread_create(idle_stack, sizeof(idle_stack), PRIORITY_IDLE, CREATE_WOUT_YIELD | CREATE_STACKTEST, idle_thread, NULL, idle_name) < 0) {
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printf("kernel_init(): error creating idle task.\n");
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}
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if (thread_create(main_stack, sizeof(main_stack), PRIORITY_MAIN, CREATE_WOUT_YIELD | CREATE_STACKTEST, main_trampoline, NULL, main_name) < 0) {
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printf("kernel_init(): error creating main task.\n");
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}
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printf("kernel_init(): jumping into first task...\n");
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cpu_switch_context_exit();
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}
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