1 /* $NetBSD: openpic.c,v 1.6 2005/12/11 12:18:46 christos Exp $ */
2
3 #include <sys/cdefs.h>
4 __KERNEL_RCSID(0, "$NetBSD: openpic.c,v 1.6 2005/12/11 12:18:46 christos Exp $");
5
6 #include <sys/types.h>
7 #include <sys/param.h>
8 #include <powerpc/openpic.h>
9
10 volatile unsigned char *openpic_base;
11
12 void
openpic_enable_irq(int irq,int type)13 openpic_enable_irq(int irq, int type)
14 {
15 u_int x;
16
17 x = openpic_read(OPENPIC_SRC_VECTOR(irq));
18 x &= ~(OPENPIC_IMASK | OPENPIC_SENSE_LEVEL | OPENPIC_SENSE_EDGE);
19 if (type == IST_LEVEL)
20 x |= OPENPIC_SENSE_LEVEL;
21 else
22 x |= OPENPIC_SENSE_EDGE;
23 openpic_write(OPENPIC_SRC_VECTOR(irq), x);
24 }
25
26 void
openpic_disable_irq(int irq)27 openpic_disable_irq(int irq)
28 {
29 u_int x;
30
31 x = openpic_read(OPENPIC_SRC_VECTOR(irq));
32 x |= OPENPIC_IMASK;
33 openpic_write(OPENPIC_SRC_VECTOR(irq), x);
34 }
35
36 void
openpic_set_priority(int cpu,int pri)37 openpic_set_priority(int cpu, int pri)
38 {
39 u_int x;
40
41 x = openpic_read(OPENPIC_CPU_PRIORITY(cpu));
42 x &= ~OPENPIC_CPU_PRIORITY_MASK;
43 x |= pri;
44 openpic_write(OPENPIC_CPU_PRIORITY(cpu), x);
45 }
46