int dirtio_mmio_out(struct dirtio_desc *dio, uint32_t port,
uint8_t queue, uint64_t val)
{
int ret;
ret = sys_out(dio->id, ((port << 8) | queue) & ~PORT_DIRTIO_IN, val);
return ret;
}
static ssize_t
rtc_sysfs_set_wakealarm(struct device *dev, struct device_attribute *attr,
const char *buf, size_t n)
{
ssize_t retval;
unsigned long now, alarm;
struct rtc_wkalrm alm;
struct rtc_device *rtc = to_rtc_device(dev);
char *buf_ptr;
int adjust = 0;
printk("%s \n", __func__);
/* Only request alarms that trigger in the future. Disable them
* by writing another time, e.g. 0 meaning Jan 1 1970 UTC.
*/
retval = rtc_read_time(rtc, &alm.time);
sys_out("retval is %d \n", retval);
if (retval < 0)
return retval;
rtc_tm_to_time(&alm.time, &now);
buf_ptr = (char *)buf;
if (*buf_ptr == '+') {
buf_ptr++;
adjust = 1;
}
alarm = simple_strtoul(buf_ptr, NULL, 0);
if (adjust) {
alarm += now;
}
if (alarm > now) {
/* Avoid accidentally clobbering active alarms; we can't
* entirely prevent that here, without even the minimal
* locking from the /dev/rtcN api.
*/
retval = rtc_read_alarm(rtc, &alm);
if (retval < 0)
return retval;
if (alm.enabled)
return -EBUSY;
alm.enabled = 1;
} else {
alm.enabled = 0;
/* Provide a valid future alarm time. Linux isn't EFI,
* this time won't be ignored when disabling the alarm.
*/
alarm = now + 300;
}
rtc_time_to_tm(alarm, &alm.time);
retval = rtc_set_alarm(rtc, &alm);
printk("set_alarm retval: %d\n",retval);
return (retval < 0) ? retval : n;
}
int dirtio_mmio_outw(struct dirtio_desc *dio, uint32_t port,
uint8_t queue, uint64_t val)
{
int ret;
unsigned fil;
uintptr_t irq;
uintptr_t udata;
ret = sys_out(dio->id, ((port << 8) | queue) & ~PORT_DIRTIO_IN, val);
if (ret)
return ret;
drex_kqueue_wait(dio->kq, &fil, &irq, &udata, 0);
return 0;
}
int dirtio_mmio_inw(struct dirtio_desc *dio, uint32_t port,
uint8_t queue, uint64_t *val)
{
int ret;
unsigned fil;
uintptr_t irq;
uintptr_t udata;
ret = sys_out(dio->id, PORT_DIRTIO_IN | (port << 8) | queue, 0);
if (ret)
return ret;
drex_kqueue_wait(dio->kq, &fil, &irq, &udata, 0);
*val = dio->hdr->ioval;
return 0;
}
