static int wm8350_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
{
struct wm8350 *wm8350 = dev_get_drvdata(dev);
struct rtc_time *tm = &alrm->time;
u16 time[3];
int ret;
memset(time, 0, sizeof(time));
if (tm->tm_sec != -1)
time[0] |= tm->tm_sec;
else
time[0] |= WM8350_RTC_ALMSECS_MASK;
if (tm->tm_min != -1)
time[0] |= tm->tm_min << WM8350_RTC_ALMMINS_SHIFT;
else
time[0] |= WM8350_RTC_ALMMINS_MASK;
if (tm->tm_hour != -1)
time[1] |= tm->tm_hour;
else
time[1] |= WM8350_RTC_ALMHRS_MASK;
if (tm->tm_wday != -1)
time[1] |= (tm->tm_wday + 1) << WM8350_RTC_ALMDAY_SHIFT;
else
time[1] |= WM8350_RTC_ALMDAY_MASK;
if (tm->tm_mday != -1)
time[2] |= tm->tm_mday;
else
time[2] |= WM8350_RTC_ALMDATE_MASK;
if (tm->tm_mon != -1)
time[2] |= (tm->tm_mon + 1) << WM8350_RTC_ALMMTH_SHIFT;
else
time[2] |= WM8350_RTC_ALMMTH_MASK;
ret = wm8350_rtc_stop_alarm(wm8350);
if (ret < 0)
return ret;
/* Write time to RTC */
ret = wm8350_block_write(wm8350, WM8350_ALARM_SECONDS_MINUTES,
3, time);
if (ret < 0)
return ret;
if (alrm->enabled)
ret = wm8350_rtc_start_alarm(wm8350);
return ret;
}
/*
* Set current time and date in RTC
*/
static int wm8350_rtc_settime(struct device *dev, struct rtc_time *tm)
{
struct wm8350 *wm8350 = dev_get_drvdata(dev);
u16 time[4];
u16 rtc_ctrl;
int ret, retries = WM8350_SET_TIME_RETRIES;
time[0] = tm->tm_sec;
time[0] |= tm->tm_min << WM8350_RTC_MINS_SHIFT;
time[1] = tm->tm_hour;
time[1] |= (tm->tm_wday + 1) << WM8350_RTC_DAY_SHIFT;
time[2] = tm->tm_mday;
time[2] |= (tm->tm_mon + 1) << WM8350_RTC_MTH_SHIFT;
time[3] = ((tm->tm_year + 1900) / 100) << WM8350_RTC_YHUNDREDS_SHIFT;
time[3] |= (tm->tm_year + 1900) % 100;
dev_dbg(dev, "Setting: %04x %04x %04x %04x\n",
time[0], time[1], time[2], time[3]);
/* Set RTC_SET to stop the clock */
ret = wm8350_set_bits(wm8350, WM8350_RTC_TIME_CONTROL, WM8350_RTC_SET);
if (ret < 0)
return ret;
/* Wait until confirmation of stopping */
do {
rtc_ctrl = wm8350_reg_read(wm8350, WM8350_RTC_TIME_CONTROL);
schedule_timeout_uninterruptible(msecs_to_jiffies(1));
} while (--retries && !(rtc_ctrl & WM8350_RTC_STS));
if (!retries) {
dev_err(dev, "timed out on set confirmation\n");
return -EIO;
}
/* Write time to RTC */
ret = wm8350_block_write(wm8350, WM8350_RTC_SECONDS_MINUTES, 4, time);
if (ret < 0)
return ret;
/* Clear RTC_SET to start the clock */
ret = wm8350_clear_bits(wm8350, WM8350_RTC_TIME_CONTROL,
WM8350_RTC_SET);
return ret;
}
/*
* Set current time and date in RTC
*/
static int wm8350_rtc_settime(struct device *dev, struct rtc_time *tm)
{
struct wm8350_rtc *wm_rtc = to_wm8350_rtc_device(dev);
struct wm8350 *wm8350 = to_wm8350_from_rtc(wm_rtc);
u16 time[4];
u16 rtc_ctrl;
int ret, retries = WM8350_SET_TIME_RETRIES;
dbg("%s tm->tm_wday %d, tm->tm_mon %d",
__FUNCTION__, tm->tm_wday, tm->tm_mon);
time[0] = tm->tm_sec;
time[0] |= tm->tm_min << WM8350_RTC_MINS_SHIFT;
time[1] = tm->tm_hour;
time[1] |= (tm->tm_wday + 1) << WM8350_RTC_DAY_SHIFT;
time[2] = tm->tm_mday;
time[2] |= (tm->tm_mon + 1) << WM8350_RTC_MTH_SHIFT;
time[3] = ((tm->tm_year + 1900) / 100) << WM8350_RTC_YHUNDREDS_SHIFT;
time[3] |= (tm->tm_year + 1900) % 100;
/* Set RTC_SET to stop the clock */
ret = wm8350_set_bits(wm8350, WM8350_RTC_TIME_CONTROL, WM8350_RTC_SET);
if (ret < 0)
return ret;
/* Wait until confirmation of stopping */
do {
rtc_ctrl = wm8350_reg_read(wm8350, WM8350_RTC_TIME_CONTROL);
schedule_timeout_interruptible(msecs_to_jiffies(1));
} while (retries-- && !(rtc_ctrl & WM8350_RTC_STS));
if (!retries) {
printk(KERN_ERR "wm8350-rtc time out on set confirmation\n");
return -EIO;
}
/* Write time to RTC */
ret = wm8350_block_write(wm8350, WM8350_RTC_SECONDS_MINUTES, 4, time);
if (ret < 0)
return ret;
/* Clear RTC_SET to start the clock */
ret = wm8350_clear_bits(wm8350, WM8350_RTC_TIME_CONTROL,
WM8350_RTC_SET);
return ret;
}
/*
* Set alarm time and date in RTC
*/
static int wm8350_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
{
struct wm8350_rtc *wm_rtc = to_wm8350_rtc_device(dev);
struct wm8350 *wm8350 = to_wm8350_from_rtc(wm_rtc);
struct rtc_time *tm = &alrm->time;
u16 rtc_ctrl;
u16 time[3];
int ret, retries = WM8350_SET_ALM_RETRIES;
time[0] = tm->tm_sec;
time[0] |= tm->tm_min << WM8350_RTC_ALMMINS_SHIFT;
time[1] = tm->tm_hour;
time[1] |= WM8350_RTC_ALMDAY_MASK;
time[2] = WM8350_RTC_ALMDATE_MASK;
time[2] |= WM8350_RTC_ALMMTH_MASK;
/* Set RTC_SET to stop the clock */
ret = wm8350_set_bits(wm8350, WM8350_RTC_TIME_CONTROL,
WM8350_RTC_ALMSET);
if (ret < 0)
return ret;
/* Wait until confirmation of stopping */
do {
rtc_ctrl = wm8350_reg_read(wm8350, WM8350_RTC_TIME_CONTROL);
schedule_timeout_interruptible(msecs_to_jiffies(1));
} while (retries-- && !(rtc_ctrl & WM8350_RTC_ALMSTS));
/* Write time to RTC */
ret = wm8350_block_write(wm8350, WM8350_ALARM_SECONDS_MINUTES,
3, time);
if (ret < 0)
return ret;
/* Clear RTC_ALMSET to enable the alarm */
ret = wm8350_clear_bits(wm8350, WM8350_RTC_TIME_CONTROL,
WM8350_RTC_ALMSET);
return ret;
}
