3 * Copyright 2007 Free Software Foundation, Inc.
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 #ifndef INCLUDED_PIC_H
20 #define INCLUDED_PIC_H
22 typedef void (*irq_handler_t)(unsigned irq);
25 void pic_register_handler(unsigned irq, irq_handler_t handler);
27 void nop_handler(unsigned irq); // default handler does nothing
29 // FIXME inline assembler
30 int pic_disable_interrupts();
31 int pic_enable_interrupts();
32 void pic_restore_interrupts(int prev_status);
35 #endif /* INCLUDED_PIC_H */