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Fix setting counter limit to 0 (Robert Reif) 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3834 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2007-12-17 18:21:57 +00:00
parent 19f8e5dd2b
commit 6240d64670
1 changed files with 8 additions and 7 deletions
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15
hw/slavio_timer.c
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@ -175,7 +175,6 @@ static void slavio_timer_mem_writel(void *opaque, target_phys_addr_t addr,
{
SLAVIO_TIMERState *s = opaque;
uint32_t saddr;
int reload = 0;
DPRINTF("write " TARGET_FMT_plx " %08x\n", addr, val);
saddr = (addr & TIMER_MAXADDR) >> 2;
@ -191,9 +190,10 @@ static void slavio_timer_mem_writel(void *opaque, target_phys_addr_t addr,
// set limit, reset counter
qemu_irq_lower(s->irq);
s->limit = val & TIMER_MAX_COUNT32;
if (!s->limit)
s->limit = TIMER_MAX_COUNT32;
ptimer_set_limit(s->timer, s->limit >> 9, 1);
if (s->limit == 0) /* free-run */
ptimer_set_limit(s->timer, LIMIT_TO_PERIODS(TIMER_MAX_COUNT32), 1);
else
ptimer_set_limit(s->timer, LIMIT_TO_PERIODS(s->limit), 1);
}
break;
case TIMER_COUNTER:
@ -209,9 +209,10 @@ static void slavio_timer_mem_writel(void *opaque, target_phys_addr_t addr,
case TIMER_COUNTER_NORST:
// set limit without resetting counter
s->limit = val & TIMER_MAX_COUNT32;
if (!s->limit)
s->limit = TIMER_MAX_COUNT32;
ptimer_set_limit(s->timer, LIMIT_TO_PERIODS(s->limit), reload);
if (s->limit == 0) /* free-run */
ptimer_set_limit(s->timer, LIMIT_TO_PERIODS(TIMER_MAX_COUNT32), 0);
else
ptimer_set_limit(s->timer, LIMIT_TO_PERIODS(s->limit), 0);
break;
case TIMER_STATUS:
if (slavio_timer_is_user(s)) {