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iPod Classic: use PMU interrupts to detect hold switch

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Finally the hold switch workaround is removed and it is detected
in the same way as OF does.

Change-Id: Iceac6ca48ffd131b8ee9f62ffdc2b3e30eb02042
This commit is contained in:
Cástor Muñoz 2016-05-25 23:15:43 +02:00
parent a6b4bf3a33
commit d8989b15b7
1 changed files with 12 additions and 20 deletions
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32
firmware/target/arm/ipod/button-clickwheel.c
View file

@ -42,6 +42,10 @@
#ifdef IPOD_NANO2G
#include "pmu-target.h"
#endif
#ifdef IPOD_6G
#include "pmu-target.h"
#include "clocking-s5l8702.h"
#endif
#define WHEEL_FAST_OFF_TIMEOUT 250000 /* timeout for acceleration = 250ms */
#define WHEEL_REPEAT_TIMEOUT 250000 /* timeout for button repeat = 250ms */
@ -271,12 +275,6 @@ static inline int ipod_4g_button_read(void)
semaphore_release(&button_init_wakeup);
}
#endif
#if CONFIG_CPU==S5L8702
else if (status == 0xAAAAAAAA)
{
GPIOCMD = 0xe040f; /* DOUT = Output High */
}
#endif
#ifdef CPU_PP
}
@ -368,11 +366,9 @@ static void s5l_clickwheel_init(void)
WHEEL04 |= 1;
PDAT10 &= ~2;
#elif CONFIG_CPU==S5L8702
PWRCON(1) &= ~(1 << 1); /* unmask clockgate */
WHEEL00 = 0; /* stop s5l8702 controller */
PUNB(14) &= ~(1 << 2); /* disable pull-up for GPIO E2 */
udelay(100);
PCON(14) = (PCON(14) & ~0x00ffff00) | 0x00222200;
clockgate_enable(CLOCKGATE_CWHEEL, true);
PCONE = (PCONE & ~0x00ffff00) | 0x00222200;
WHEEL00 = 0; /* stop s5l8702 controller */
WHEELINT = 7;
WHEEL10 = 1;
WHEEL00 = 0x380000;
@ -390,12 +386,6 @@ void button_init_device(void)
#endif
s5l_clickwheel_init();
semaphore_wait(&button_init_wakeup, HZ / 10);
#if CONFIG_CPU==S5L8702
/* configure GPIO E2 as pull-up input */
PUNB(14) |= (1 << 2);
udelay(100);
GPIOCMD = 0xe0200;
#endif
}
bool button_hold(void)
@ -407,7 +397,7 @@ bool button_hold(void)
else PCON15 = (PCON15 & ~0xffff0000) | 0x22220000;
return value;
#elif CONFIG_CPU==S5L8702
return ((PDATE & (1 << 2)) == 0);
return pmu_holdswitch_locked();
#endif
}
@ -450,7 +440,9 @@ int button_read_device(void)
WHEEL10 = 0;
PWRCONEXT |= 1;
#elif CONFIG_CPU==S5L8702
GPIOCMD = 0xe040e; /* DOUT = Output Low */
WHEEL00 = 0;
PCONE = (PCONE & ~0x00ffff00) | 0x000e0e00;
clockgate_enable(CLOCKGATE_CWHEEL, false);
#endif
}
else
@ -463,7 +455,7 @@ int button_read_device(void)
pmu_ldo_power_on(1); /* enable clickwheel power supply */
s5l_clickwheel_init();
#elif CONFIG_CPU==S5L8702
GPIOCMD = 0xe040f; /* DOUT = Output High */
s5l_clickwheel_init();
#endif
}
}