1/*-
2 * Copyright (c) 1991 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without

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29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * from: @(#)isa.c 7.2 (Berkeley) 5/13/91
37 * $FreeBSD: head/sys/i386/isa/nmi.c 77582 2001-06-01 13:23:28Z tmm $
38 */
39
40#include "opt_auto_eoi.h"
41#include "opt_isa.h"
42#include "opt_mca.h"
43
44#include <sys/param.h>
45#include <sys/bus.h>

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130#endif /* APIC_IO */
131};
132
133static driver_intr_t isa_strayintr;
134
135static void ithds_init(void *dummy);
136static void ithread_enable(int vector);
137static void ithread_disable(int vector);
138
139#ifdef PC98
140#define NMI_PARITY 0x04
141#define NMI_EPARITY 0x02
142#else
143#define NMI_PARITY (1 << 7)
144#define NMI_IOCHAN (1 << 6)
145#define ENMI_WATCHDOG (1 << 7)

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277 log(LOG_CRIT, "EISA I/O port status error.");
278 retval = 1;
279 }
280#endif
281 return(retval);
282}
283
284/*
285 * Create a default interrupt table to avoid problems caused by
286 * spurious interrupts during configuration of kernel, then setup
287 * interrupt control unit.
288 */
289void
290isa_defaultirq()
291{
292 int i;
293
294 /* icu vectors */
295 for (i = 0; i < ICU_LEN; i++)
296 icu_unset(i, (driver_intr_t *)NULL);
297
298 /* initialize 8259's */
299#ifdef DEV_MCA
300 if (MCA_system)
301 outb(IO_ICU1, 0x19); /* reset; program device, four bytes */
302 else
303#endif
304 outb(IO_ICU1, 0x11); /* reset; program device, four bytes */
305
306 outb(IO_ICU1+ICU_IMR_OFFSET, NRSVIDT); /* starting at this vector index */

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