78 lines
2.5 KiB
C
78 lines
2.5 KiB
C
/* $NetBSD: openpic.h,v 1.3 2001/02/05 19:22:23 briggs Exp $ */
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/*-
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* Copyright (c) 2000 Tsubai Masanari. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <machine/pio.h>
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#include <machine/openpicreg.h>
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/* void openpic_init(): defined in machdep code, must set openpic_base */
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void openpic_enable_irq __P((int, int));
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void openpic_disable_irq __P((int));
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void openpic_set_priority __P((int, int));
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extern volatile unsigned char *openpic_base;
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static __inline u_int openpic_read __P((int));
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static __inline void openpic_write __P((int, u_int));
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static __inline int openpic_read_irq __P((int));
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static __inline void openpic_eoi __P((int));
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static __inline u_int
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openpic_read(reg)
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int reg;
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{
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volatile unsigned char *addr = openpic_base + reg;
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return in32rb(addr);
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}
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static __inline void
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openpic_write(reg, val)
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int reg;
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u_int val;
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{
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volatile unsigned char *addr = openpic_base + reg;
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out32rb(addr, val);
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}
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static __inline int
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openpic_read_irq(cpu)
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int cpu;
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{
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return openpic_read(OPENPIC_IACK(cpu)) & OPENPIC_VECTOR_MASK;
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}
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static __inline void
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openpic_eoi(cpu)
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int cpu;
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{
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openpic_write(OPENPIC_EOI(cpu), 0);
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openpic_read(OPENPIC_EOI(cpu));
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}
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