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iPod Classic: This time really fix the hold switch. Read it out through the power manager, and cache the result for 100 milliseconds because the power manager doesn't like being spammed

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29264 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sparmann 2011-02-09 21:39:40 +00:00
parent bf1ca7041e
commit acf54bed55
1 changed files with 13 additions and 2 deletions
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15
firmware/target/arm/ipod/button-clickwheel.c
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@ -87,6 +87,11 @@ int int_btn = BUTTON_NONE;
static struct wakeup button_init_wakeup;
#endif
#if CONFIG_CPU==S5L8702
static long holdswitch_last_read;
static bool holdswitch_last_value;
#endif
#ifdef CPU_PP
static void opto_i2c_init(void)
{
@ -372,7 +377,8 @@ void button_init_device(void)
#if CONFIG_CPU==S5L8701
INTMSK |= (1<<26);
#elif CONFIG_CPU==S5L8702
//TODO: Implement
holdswitch_last_read = USEC_TIMER;
holdswitch_last_value = (pmu_read(0x87) & 2) == 0;
#endif
s5l_clickwheel_init();
wakeup_wait(&button_init_wakeup, HZ / 10);
@ -383,7 +389,12 @@ bool button_hold(void)
#if CONFIG_CPU==S5L8701
return ((PDAT14 & (1 << 6)) == 0);
#elif CONFIG_CPU==S5L8702
return ((PDATE & (1 << 4)) == 0);
if (USEC_TIMER - holdswitch_last_read > 100000)
{
holdswitch_last_read = USEC_TIMER;
holdswitch_last_value = (pmu_read(0x87) & 2) == 0;
}
return holdswitch_last_value;
#endif
}