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Code Issues Releases Activity

Fixed PC98 support.

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- Disable an ELCR on PC98.
 - Correct IRQs.
This commit is contained in:
Yoshihiro Takahashi 2004-05-06 13:48:34 +00:00
parent 3e48fb44a8
commit 304a8159e9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=129009
1 changed files with 31 additions and 0 deletions
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31
sys/i386/isa/atpic.c
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@ -100,7 +100,9 @@ __FBSDID("$FreeBSD$");
static void atpic_init(void *dummy);
unsigned int imen; /* XXX */
#ifndef PC98
static int using_elcr;
#endif
inthand_t
IDTVEC(atpic_intr0), IDTVEC(atpic_intr1), IDTVEC(atpic_intr2),
@ -269,8 +271,10 @@ atpic_resume(struct intsrc *isrc)
if (ai->at_irq == 0) {
i8259_init(ap, ap == &atpics[SLAVE]);
#ifndef PC98
if (ap == &atpics[SLAVE] && using_elcr)
elcr_resume();
#endif
}
}
@ -300,6 +304,17 @@ atpic_config_intr(struct intsrc *isrc, enum intr_trigger trig,
if (ai->at_trigger == trig)
return (0);
#ifdef PC98
if ((vector == 0 || vector == 1 || vector == 7 || vector == 8) &&
trig == INTR_TRIGGER_LEVEL) {
if (bootverbose)
printf(
"atpic: Ignoring invalid level/low configuration for IRQ%u\n",
vector);
return (EINVAL);
}
return (ENXIO);
#else
/*
* Certain IRQs can never be level/lo, so don't try to set them
* that way if asked. At least some ELCR registers ignore setting
@ -328,6 +343,7 @@ atpic_config_intr(struct intsrc *isrc, enum intr_trigger trig,
ai->at_trigger = trig;
mtx_unlock_spin(&icu_lock);
return (0);
#endif /* PC98 */
}
static void
@ -410,6 +426,20 @@ atpic_startup(void)
else
#endif
#ifdef PC98
for (i = 0, ai = atintrs; i < NUM_ISA_IRQS; i++, ai++)
switch (i) {
case 0:
case 1:
case 7:
case 8:
ai->at_trigger = INTR_TRIGGER_EDGE;
break;
default:
ai->at_trigger = INTR_TRIGGER_LEVEL;
break;
}
#else
/*
* Look for an ELCR. If we find one, update the trigger modes.
* If we don't find one, assume that IRQs 0, 1, 2, and 13 are
@ -440,6 +470,7 @@ atpic_startup(void)
break;
}
}
#endif /* PC98 */
}
static void