xref: /netbsd-src/sys/arch/prep/include/intr.h (revision 8b0f9554ff8762542c4defc4f70e1eb76fb508fa)
1 /*	$NetBSD: intr.h,v 1.30 2007/10/17 19:56:49 garbled Exp $	*/
2 
3 /*-
4  * Copyright (c) 2007 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Tim Rightnour
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *        This product includes software developed by the NetBSD
21  *        Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 #ifndef _PREP_INTR_H_
40 #define _PREP_INTR_H_
41 
42 #include <powerpc/intr.h>
43 
44 #ifndef _LOCORE
45 #include <machine/cpu.h>
46 #include <sys/device.h>
47 
48 void init_intr_ivr(void);
49 void init_intr_openpic(void);
50 void openpic_init(unsigned char *);
51 void enable_intr(void);
52 void disable_intr(void);
53 
54 extern int imask[];
55 extern vaddr_t prep_intr_reg;
56 extern uint32_t prep_intr_reg_off;
57 
58 #define	ICU_LEN			32
59 
60 #define	IRQ_SLAVE		2
61 #define	LEGAL_IRQ(x)		((x) >= 0 && (x) < ICU_LEN && (x) != IRQ_SLAVE)
62 #define	I8259_INTR_NUM		16
63 #define	OPENPIC_INTR_NUM	((ICU_LEN)-(I8259_INTR_NUM))
64 
65 #define	PREP_INTR_REG	0xbffff000
66 #define	INTR_VECTOR_REG	0xff0
67 
68 #endif /* !_LOCORE */
69 
70 #endif /* !_PREP_INTR_H_ */
71