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