Working

bertos/kern/irq.c

@@ -0,0 +1,79 @@
+/**
+ * \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);
+}