static int alarmtimer_rtc_add_device(struct device *dev,
struct class_interface *class_intf)
{
unsigned long flags;
int err = 0;
struct rtc_device *rtc = to_rtc_device(dev);
if (rtcdev)
return -EBUSY;
if (!rtc->ops->set_alarm)
return -1;
spin_lock_irqsave(&rtcdev_lock, flags);
if (!rtcdev) {
err = rtc_irq_register(rtc, &alarmtimer_rtc_task);
if (err)
goto rtc_irq_reg_err;
rtcdev = rtc;
/* hold a reference so it doesn't go away */
get_device(dev);
}
rtc_irq_reg_err:
spin_unlock_irqrestore(&rtcdev_lock, flags);
return err;
}
int stmmac_open_ext_timer(struct net_device *dev, struct stmmac_timer *tm)
{
stmmac_task.private_data = dev;
stmmac_task.func = stmmac_timer_handler;
stmmac_rtc = rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE);
if (stmmac_rtc == NULL) {
pr_error("open rtc device failed\n");
return -ENODEV;
}
rtc_irq_register(stmmac_rtc, &stmmac_task);
/* Periodic mode is not supported */
if ((rtc_irq_set_freq(stmmac_rtc, &stmmac_task, tm->freq) < 0)) {
pr_error("set periodic failed\n");
rtc_irq_unregister(stmmac_rtc, &stmmac_task);
rtc_class_close(stmmac_rtc);
return -1;
}
STMMAC_TIMER_MSG(CONFIG_RTC_HCTOSYS_DEVICE, tm->freq);
tm->timer_start = stmmac_rtc_start;
tm->timer_stop = stmmac_rtc_stop;
return 0;
}
