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      1  1.8    matt /*	$NetBSD: openpic.h,v 1.8 2012/02/01 02:03:51 matt Exp $	*/
      2  1.1  briggs 
      3  1.1  briggs /*-
      4  1.1  briggs  * Copyright (c) 2000 Tsubai Masanari.  All rights reserved.
      5  1.1  briggs  *
      6  1.1  briggs  * Redistribution and use in source and binary forms, with or without
      7  1.1  briggs  * modification, are permitted provided that the following conditions
      8  1.1  briggs  * are met:
      9  1.1  briggs  * 1. Redistributions of source code must retain the above copyright
     10  1.1  briggs  *    notice, this list of conditions and the following disclaimer.
     11  1.1  briggs  * 2. Redistributions in binary form must reproduce the above copyright
     12  1.1  briggs  *    notice, this list of conditions and the following disclaimer in the
     13  1.1  briggs  *    documentation and/or other materials provided with the distribution.
     14  1.1  briggs  * 3. The name of the author may not be used to endorse or promote products
     15  1.1  briggs  *    derived from this software without specific prior written permission.
     16  1.1  briggs  *
     17  1.1  briggs  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  1.1  briggs  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  1.1  briggs  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  1.1  briggs  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  1.1  briggs  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  1.1  briggs  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  1.1  briggs  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  1.1  briggs  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  1.1  briggs  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26  1.1  briggs  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  1.1  briggs  */
     28  1.1  briggs 
     29  1.1  briggs #include <machine/pio.h>
     30  1.1  briggs 
     31  1.1  briggs #include <machine/openpicreg.h>
     32  1.1  briggs 
     33  1.1  briggs extern volatile unsigned char *openpic_base;
     34  1.1  briggs 
     35  1.8    matt static __inline uint32_t openpic_read(u_int);
     36  1.8    matt static __inline void openpic_write(u_int, uint32_t);
     37  1.7     dsl static __inline int openpic_read_irq(int);
     38  1.7     dsl static __inline void openpic_eoi(int);
     39  1.1  briggs 
     40  1.8    matt static __inline uint32_t
     41  1.8    matt openpic_read(u_int reg)
     42  1.1  briggs {
     43  1.8    matt 	volatile uint8_t *addr = openpic_base + reg;
     44  1.1  briggs 
     45  1.1  briggs 	return in32rb(addr);
     46  1.1  briggs }
     47  1.1  briggs 
     48  1.5   perry static __inline void
     49  1.8    matt openpic_write(u_int reg, uint32_t val)
     50  1.1  briggs {
     51  1.8    matt 	volatile uint8_t *addr = openpic_base + reg;
     52  1.1  briggs 
     53  1.1  briggs 	out32rb(addr, val);
     54  1.1  briggs }
     55  1.1  briggs 
     56  1.5   perry static __inline int
     57  1.8    matt openpic_read_irq(int cpu)
     58  1.1  briggs {
     59  1.1  briggs 	return openpic_read(OPENPIC_IACK(cpu)) & OPENPIC_VECTOR_MASK;
     60  1.1  briggs }
     61  1.1  briggs 
     62  1.5   perry static __inline void
     63  1.8    matt openpic_eoi(int cpu)
     64  1.1  briggs {
     65  1.1  briggs 	openpic_write(OPENPIC_EOI(cpu), 0);
     66  1.1  briggs 	openpic_read(OPENPIC_EOI(cpu));
     67  1.1  briggs }
     68