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      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
     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
     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
     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