68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
/* $NetBSD: openpic.h,v 1.8 2012/02/01 02:03:51 matt Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2000 Tsubai Masanari. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <machine/pio.h>
|
|
|
|
#include <machine/openpicreg.h>
|
|
|
|
extern volatile unsigned char *openpic_base;
|
|
|
|
static __inline uint32_t openpic_read(u_int);
|
|
static __inline void openpic_write(u_int, uint32_t);
|
|
static __inline int openpic_read_irq(int);
|
|
static __inline void openpic_eoi(int);
|
|
|
|
static __inline uint32_t
|
|
openpic_read(u_int reg)
|
|
{
|
|
volatile uint8_t *addr = openpic_base + reg;
|
|
|
|
return in32rb(addr);
|
|
}
|
|
|
|
static __inline void
|
|
openpic_write(u_int reg, uint32_t val)
|
|
{
|
|
volatile uint8_t *addr = openpic_base + reg;
|
|
|
|
out32rb(addr, val);
|
|
}
|
|
|
|
static __inline int
|
|
openpic_read_irq(int cpu)
|
|
{
|
|
return openpic_read(OPENPIC_IACK(cpu)) & OPENPIC_VECTOR_MASK;
|
|
}
|
|
|
|
static __inline void
|
|
openpic_eoi(int cpu)
|
|
{
|
|
openpic_write(OPENPIC_EOI(cpu), 0);
|
|
openpic_read(OPENPIC_EOI(cpu));
|
|
}
|