static int rtc_release(struct inode *inode, struct file *file)
{
del_timer(&rtc_uie_timer);
if (file->f_flags & FASYNC)
rtc_fasync(-1, file, 0);
rtc_irq_data = 0;
/* No need for locking -- nobody else can do anything until this rmw is
* committed, and no timer is running. */
rtc_status &= ~(RTC_IS_OPEN | RTC_UIE_TIMER_ON);
return 0;
}
static int rtc_release(struct inode *inode, struct file *file)
{
#if RTC_IRQ
unsigned char tmp;
if (rtc_has_irq == 0)
goto no_irq;
/*
* Turn off all interrupts once the device is no longer
* in use, and clear the data.
*/
spin_lock_irq(&rtc_lock);
tmp = CMOS_READ(RTC_CONTROL);
tmp &= ~RTC_PIE;
tmp &= ~RTC_AIE;
tmp &= ~RTC_UIE;
CMOS_WRITE(tmp, RTC_CONTROL);
CMOS_READ(RTC_INTR_FLAGS);
if (rtc_status & RTC_TIMER_ON) {
rtc_status &= ~RTC_TIMER_ON;
del_timer(&rtc_irq_timer);
}
spin_unlock_irq(&rtc_lock);
if (file->f_flags & FASYNC) {
rtc_fasync (-1, file, 0);
}
no_irq:
#endif
spin_lock_irq (&rtc_lock);
rtc_irq_data = 0;
spin_unlock_irq (&rtc_lock);
/* No need for locking -- nobody else can do anything until this rmw is
* committed, and no timer is running. */
rtc_status &= ~RTC_IS_OPEN;
return 0;
}
static int rtc_release(struct inode *inode, struct file *file)
{
#ifdef RTC_IRQ
unsigned char tmp;
if (rtc_has_irq == 0)
goto no_irq;
/*
* Turn off all interrupts once the device is no longer
* in use, and clear the data.
*/
spin_lock_irq(&rtc_lock);
if (!hpet_mask_rtc_irq_bit(RTC_PIE | RTC_AIE | RTC_UIE)) {
tmp = CMOS_READ(RTC_CONTROL);
tmp &= ~RTC_PIE;
tmp &= ~RTC_AIE;
tmp &= ~RTC_UIE;
CMOS_WRITE(tmp, RTC_CONTROL);
CMOS_READ(RTC_INTR_FLAGS);
}
if (rtc_status & RTC_TIMER_ON) {
rtc_status &= ~RTC_TIMER_ON;
del_timer(&rtc_irq_timer);
}
spin_unlock_irq(&rtc_lock);
if (file->f_flags & FASYNC) {
rtc_fasync (-1, file, 0);
}
no_irq:
#endif
spin_lock_irq (&rtc_lock);
rtc_irq_data = 0;
rtc_status &= ~RTC_IS_OPEN;
spin_unlock_irq (&rtc_lock);
return 0;
}
