nuclear@0: /*
nuclear@2: Copyright 2004-2012 John Tsiombikas <nuclear@member.fsf.org>
nuclear@0: 
nuclear@2: This file is part of gbasys, a library for GameBoy Advance development.
nuclear@0: 
nuclear@0: This program is free software; you can redistribute it and/or modify
nuclear@0: it under the terms of the GNU General Public License as published by
nuclear@0: the Free Software Foundation; either version 2 of the License, or
nuclear@0: (at your option) any later version.
nuclear@0: 
nuclear@0: This program is distributed in the hope that it will be useful,
nuclear@0: but WITHOUT ANY WARRANTY; without even the implied warranty of
nuclear@0: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nuclear@0: GNU General Public License for more details.
nuclear@0: 
nuclear@0: You should have received a copy of the GNU General Public License
nuclear@0: along with this program; if not, write to the Free Software
nuclear@0: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
nuclear@0: */
nuclear@0: 
nuclear@0: #ifndef _INTR_H_
nuclear@0: #define _INTR_H_
nuclear@0: 
nuclear@0: /* interrupts */
nuclear@0: enum {
nuclear@0: 	INTR_VBLANK,
nuclear@0: 	INTR_HBLANK,
nuclear@0: 	INTR_VCOUNT,
nuclear@0: 	INTR_TIMER0,
nuclear@0: 	INTR_TIMER1,
nuclear@0: 	INTR_TIMER2,
nuclear@0: 	INTR_TIMER3,
nuclear@0: 	INTR_COMM,
nuclear@0: 	INTR_DMA0,
nuclear@0: 	INTR_DMA1,
nuclear@0: 	INTR_DMA2,
nuclear@0: 	INTR_DMA3,
nuclear@0: 	INTR_KEY,
nuclear@0: 	INTR_GPAK
nuclear@0: };
nuclear@0: 
nuclear@0: extern unsigned short *reg_int_master;
nuclear@0: extern unsigned short *reg_int_mask;
nuclear@0: 
nuclear@0: void intr_init(void);
nuclear@0: 
nuclear@0: /* set/clear interrupts */
nuclear@0: #define set_int()	do {*reg_int_master = 1;} while(0)
nuclear@0: #define clr_int()	do {*reg_int_master = 0;} while(0)
nuclear@0: 
nuclear@0: /* set an interrupt handler */
nuclear@0: void interrupt(int intr, void (*handler)(void));
nuclear@0: 
nuclear@0: /* mask/unmask an interrupt */
nuclear@0: #define mask(intr)		do {*reg_int_mask ^= 1 << (intr);} while(0)
nuclear@0: #define unmask(intr)	do {*reg_int_mask |= 1 << (intr);} while(0)
nuclear@0: 
nuclear@0: #endif	/* _INTR_H_ */