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Fix broken backlight fading on ipod. The timer period setting must not be delayed if timer_set_period() is called from within the isr.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10779 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2006-08-28 06:47:26 +00:00
parent ad19af7a75
commit bb5fbf7c30
1 changed files with 8 additions and 4 deletions
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12
firmware/timer.c
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@ -59,7 +59,13 @@ void TIMER2(void)
cycles_new = 0;
}
if (pfn_timer != NULL)
{
cycles_new = -1;
/* "lock" the variable, in case timer_set_period()
* is called within pfn_timer() */
pfn_timer();
cycles_new = 0;
}
}
#endif /* CONFIG_CPU */
@ -155,11 +161,9 @@ static bool timer_set(long cycles, bool start)
pfn_unregister();
pfn_unregister = NULL;
}
cycles_new = 0;
TIMER2_CFG = 0;
TIMER2_VAL;
TIMER2_CFG = 0xc0000000 | cycles; /* enable timer */
}
if (start || (cycles_new == -1)) /* within isr, cycles_new is "locked" */
TIMER2_CFG = 0xc0000000 | cycles; /* enable timer */
else
cycles_new = cycles;