int s3c_irqext_wake(struct irq_data *data, unsigned int state)
{
unsigned long bit = 1L << IRQ_EINT_BIT(data->irq);
if (!(s3c_irqwake_eintallow & bit))
return -ENOENT;
printk(KERN_INFO "wake %s for irq %d\n",
state ? "enabled" : "disabled", data->irq);
if (!state)
s3c_irqwake_eintmask |= bit;
else
s3c_irqwake_eintmask &= ~bit;
return 0;
}
/**
* charger_check_wake_irq() - Check if the given irq caused the wakeup
* @wake_irq to check
* @return true if that irq (and only that irq) caused the most recent wakeup
* false otherwise (not that irq, or multiple irqs)
*/
static bool charger_check_wake_irq(int wake_irq)
{
unsigned long bit = IRQ_EINT_BIT(wake_irq);
bool s3c_rtc_wakeup;
uint value = 0;
uint mask;
int i;
/* Check which of the enabled wakeup souces are active */
for (i = 0, mask = 1; i < 32; i++, mask <<= 1) {
int gpio;
if (!(s3c_irqwake_eintmask & mask)) {
gpio = eint_to_gpio(i);
if (!gpio_get_value(gpio))
value |= mask;
}
}
s3c_rtc_wakeup = s3c_wksrc_rtc_alarm();
pr_debug("%s: s3c_rtc_wakeup=%d, eint=%#x\n", __func__,
s3c_rtc_wakeup, value);
/*
* If we are looking for the exynos rtc and it is the only wakeup
* cause source, then we have a match
*/
if (wake_irq == EXYNOS5_IRQ_RTC_ALARM) {
if (s3c_rtc_wakeup && !value)
return true;
/*
* We also have a match if the exynos rtc did not cause the wakeup
* and the select eint did
*/
} else if (!s3c_rtc_wakeup && value == (1U << bit)) {
return true;
}
return false;
}
