OpenModem/bertos/kern/irq.c

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2014-04-03 14:21:37 -06:00
/**
* \file
* <!--
* This file is part of BeRTOS.
*
* Bertos is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As a special exception, you may use this file as part of a free software
* library without restriction. Specifically, if other files instantiate
* templates or use macros or inline functions from this file, or you compile
* this file and link it with other files to produce an executable, this
* file does not by itself cause the resulting executable to be covered by
* the GNU General Public License. This exception does not however
* invalidate any other reasons why the executable file might be covered by
* the GNU General Public License.
*
* Copyright 2008 Bernie Innocenti <bernie@codewiz.org>
* -->
*
* \brief Process scheduler (public interface).
*
* \author Bernie Innocenti <bernie@codewiz.org>
*
* Still in development, disable nightly test for now
* notest: avr
* notest: arm
*/
#include "irq.h"
#include <cfg/module.h>
#include <kern/proc_p.h>
#include <kern/proc.h>
#include "cfg/cfg_proc.h"
#include <unistd.h> // FIXME: move POSIX stuff to irq_posix.h
MOD_DEFINE(irq)
// FIXME
static void (*irq_handlers[100])(void);
/* signal handler */
void irq_entry(int signum)
{
irq_handlers[signum]();
}
void irq_register(int irq, void (*callback)(void))
{
irq_handlers[irq] = callback;
}
void irq_init(void)
{
struct sigaction act;
act.sa_handler = irq_entry;
sigemptyset(&act.sa_mask);
//sigaddset(&act.sa_mask, irq);
act.sa_flags = SA_RESTART; // | SA_SIGINFO;
sigaction(SIGUSR1, &act, NULL);
sigaction(SIGALRM, &act, NULL);
MOD_INIT(irq);
}