static irqreturn_t button_irq(int irq, void *_priv)
{
struct mc13783_pwrb *priv = _priv;
int val;
mc13xxx_irq_ack(priv->mc13783, irq);
mc13xxx_reg_read(priv->mc13783, MC13783_REG_INTERRUPT_SENSE_1, &val);
switch (irq) {
case MC13783_IRQ_ONOFD1:
val = val & MC13783_IRQSENSE1_ONOFD1S ? 1 : 0;
if (priv->flags & MC13783_PWRB_B1_POL_INVERT)
val ^= 1;
input_report_key(priv->pwr, priv->keymap[0], val);
break;
case MC13783_IRQ_ONOFD2:
val = val & MC13783_IRQSENSE1_ONOFD2S ? 1 : 0;
if (priv->flags & MC13783_PWRB_B2_POL_INVERT)
val ^= 1;
input_report_key(priv->pwr, priv->keymap[1], val);
break;
case MC13783_IRQ_ONOFD3:
val = val & MC13783_IRQSENSE1_ONOFD3S ? 1 : 0;
if (priv->flags & MC13783_PWRB_B3_POL_INVERT)
val ^= 1;
input_report_key(priv->pwr, priv->keymap[2], val);
break;
}
input_sync(priv->pwr);
return IRQ_HANDLED;
}
static irqreturn_t mc13xxx_handler_adcdone(int irq, void *data)
{
struct mc13xxx_adcdone_data *adcdone_data = data;
mc13xxx_irq_ack(adcdone_data->mc13xxx, irq);
complete_all(&adcdone_data->done);
return IRQ_HANDLED;
}
static irqreturn_t mc13xxx_rtc_alarm_handler(int irq, void *dev)
{
struct mc13xxx_rtc *priv = dev;
struct mc13xxx *mc13xxx = priv->mc13xxx;
rtc_update_irq(priv->rtc, 1, RTC_IRQF | RTC_AF);
mc13xxx_irq_ack(mc13xxx, irq);
return IRQ_HANDLED;
}
static irqreturn_t mc13xxx_rtc_update_handler(int irq, void *dev)
{
struct mc13xxx_rtc *priv = dev;
struct mc13xxx *mc13xxx = priv->mc13xxx;
dev_dbg(&priv->rtc->dev, "1HZ\n");
rtc_update_irq(priv->rtc, 1, RTC_IRQF | RTC_UF);
mc13xxx_irq_ack(mc13xxx, irq);
return IRQ_HANDLED;
}
static int __init mc13xxx_rtc_probe(struct platform_device *pdev)
{
int ret;
struct mc13xxx_rtc *priv;
struct mc13xxx *mc13xxx;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
mc13xxx = dev_get_drvdata(pdev->dev.parent);
priv->mc13xxx = mc13xxx;
priv->valid = 1;
platform_set_drvdata(pdev, priv);
mc13xxx_lock(mc13xxx);
mc13xxx_irq_ack(mc13xxx, MC13XXX_IRQ_RTCRST);
ret = mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_RTCRST,
mc13xxx_rtc_reset_handler, DRIVER_NAME, priv);
if (ret)
goto err_irq_request;
ret = mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_1HZ,
mc13xxx_rtc_update_handler, DRIVER_NAME, priv);
if (ret)
goto err_irq_request;
ret = mc13xxx_irq_request_nounmask(mc13xxx, MC13XXX_IRQ_TODA,
mc13xxx_rtc_alarm_handler, DRIVER_NAME, priv);
if (ret)
goto err_irq_request;
mc13xxx_unlock(mc13xxx);
priv->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
&mc13xxx_rtc_ops, THIS_MODULE);
return 0;
err_irq_request:
mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_TODA, priv);
mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_1HZ, priv);
mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_RTCRST, priv);
mc13xxx_unlock(mc13xxx);
return ret;
}
static int mc13xxx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
{
struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
unsigned long s1970;
unsigned seconds, days;
int ret;
mc13xxx_lock(priv->mc13xxx);
/* */
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTODA, 0x1ffff);
if (unlikely(ret))
goto out;
ret = mc13xxx_irq_ack(priv->mc13xxx, MC13XXX_IRQ_TODA);
if (unlikely(ret))
goto out;
ret = rtc_tm_to_time(&alarm->time, &s1970);
if (unlikely(ret))
goto out;
dev_dbg(dev, "%s: o%2.s %lu\n", __func__, alarm->enabled ? "n" : "ff",
s1970);
ret = mc13xxx_rtc_irq_enable_unlocked(dev, alarm->enabled,
MC13XXX_IRQ_TODA);
if (unlikely(ret))
goto out;
seconds = s1970 % 86400;
days = s1970 / 86400;
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCDAYA, days);
if (unlikely(ret))
goto out;
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTODA, seconds);
out:
mc13xxx_unlock(priv->mc13xxx);
return ret;
}
static int mc13xxx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
{
struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
time64_t s1970;
u32 seconds, days;
int ret;
mc13xxx_lock(priv->mc13xxx);
/* disable alarm to prevent false triggering */
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTODA, 0x1ffff);
if (unlikely(ret))
goto out;
ret = mc13xxx_irq_ack(priv->mc13xxx, MC13XXX_IRQ_TODA);
if (unlikely(ret))
goto out;
s1970 = rtc_tm_to_time64(&alarm->time);
dev_dbg(dev, "%s: %s %lld\n", __func__, alarm->enabled ? "on" : "off",
(long long)s1970);
ret = mc13xxx_rtc_irq_enable_unlocked(dev, alarm->enabled,
MC13XXX_IRQ_TODA);
if (unlikely(ret))
goto out;
days = div_s64_rem(s1970, SEC_PER_DAY, &seconds);
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCDAYA, days);
if (unlikely(ret))
goto out;
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTODA, seconds);
out:
mc13xxx_unlock(priv->mc13xxx);
return ret;
}
static int mc13xxx_rtc_set_mmss(struct device *dev, unsigned long secs)
{
struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
unsigned int seconds, days;
unsigned int alarmseconds;
int ret;
seconds = secs % 86400;
days = secs / 86400;
mc13xxx_lock(priv->mc13xxx);
/*
*/
ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCTODA, &alarmseconds);
if (unlikely(ret))
goto out;
if (alarmseconds < 86400) {
ret = mc13xxx_reg_write(priv->mc13xxx,
MC13XXX_RTCTODA, 0x1ffff);
if (unlikely(ret))
goto out;
}
/*
*/
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTOD, 0);
if (unlikely(ret))
goto out;
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCDAY, days);
if (unlikely(ret))
goto out;
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTOD, seconds);
if (unlikely(ret))
goto out;
/* */
if (alarmseconds < 86400) {
ret = mc13xxx_reg_write(priv->mc13xxx,
MC13XXX_RTCTODA, alarmseconds);
if (unlikely(ret))
goto out;
}
ret = mc13xxx_irq_ack(priv->mc13xxx, MC13XXX_IRQ_RTCRST);
if (unlikely(ret))
goto out;
ret = mc13xxx_irq_unmask(priv->mc13xxx, MC13XXX_IRQ_RTCRST);
out:
priv->valid = !ret;
mc13xxx_unlock(priv->mc13xxx);
return ret;
}
int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx, unsigned int mode,
unsigned int channel, u8 ato, bool atox,
unsigned int *sample)
{
u32 adc0, adc1, old_adc0;
int i, ret;
struct mc13xxx_adcdone_data adcdone_data = {
.mc13xxx = mc13xxx,
};
init_completion(&adcdone_data.done);
dev_dbg(mc13xxx->dev, "%s\n", __func__);
mc13xxx_lock(mc13xxx);
if (mc13xxx->adcflags & MC13XXX_ADC_WORKING) {
ret = -EBUSY;
goto out;
}
mc13xxx->adcflags |= MC13XXX_ADC_WORKING;
mc13xxx_reg_read(mc13xxx, MC13XXX_ADC0, &old_adc0);
adc0 = MC13XXX_ADC0_ADINC1 | MC13XXX_ADC0_ADINC2;
adc1 = MC13XXX_ADC1_ADEN | MC13XXX_ADC1_ADTRIGIGN | MC13XXX_ADC1_ASC;
if (channel > 7)
adc1 |= MC13XXX_ADC1_ADSEL;
switch (mode) {
case MC13XXX_ADC_MODE_TS:
adc0 |= MC13XXX_ADC0_ADREFEN | MC13XXX_ADC0_TSMOD0 |
MC13XXX_ADC0_TSMOD1;
adc1 |= 4 << MC13XXX_ADC1_CHAN1_SHIFT;
break;
case MC13XXX_ADC_MODE_SINGLE_CHAN:
adc0 |= old_adc0 & MC13XXX_ADC0_CONFIG_MASK;
adc1 |= (channel & 0x7) << MC13XXX_ADC1_CHAN0_SHIFT;
adc1 |= MC13XXX_ADC1_RAND;
break;
case MC13XXX_ADC_MODE_MULT_CHAN:
adc0 |= old_adc0 & MC13XXX_ADC0_CONFIG_MASK;
adc1 |= 4 << MC13XXX_ADC1_CHAN1_SHIFT;
break;
default:
mc13xxx_unlock(mc13xxx);
return -EINVAL;
}
adc1 |= ato << MC13783_ADC1_ATO_SHIFT;
if (atox)
adc1 |= MC13783_ADC1_ATOX;
dev_dbg(mc13xxx->dev, "%s: request irq\n", __func__);
mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_ADCDONE,
mc13xxx_handler_adcdone, __func__, &adcdone_data);
mc13xxx_irq_ack(mc13xxx, MC13XXX_IRQ_ADCDONE);
mc13xxx_reg_write(mc13xxx, MC13XXX_ADC0, adc0);
mc13xxx_reg_write(mc13xxx, MC13XXX_ADC1, adc1);
mc13xxx_unlock(mc13xxx);
ret = wait_for_completion_interruptible_timeout(&adcdone_data.done, HZ);
if (!ret)
ret = -ETIMEDOUT;
mc13xxx_lock(mc13xxx);
mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_ADCDONE, &adcdone_data);
if (ret > 0)
for (i = 0; i < 4; ++i) {
ret = mc13xxx_reg_read(mc13xxx,
MC13XXX_ADC2, &sample[i]);
if (ret)
break;
}
if (mode == MC13XXX_ADC_MODE_TS)
/* restore TSMOD */
mc13xxx_reg_write(mc13xxx, MC13XXX_ADC0, old_adc0);
mc13xxx->adcflags &= ~MC13XXX_ADC_WORKING;
out:
mc13xxx_unlock(mc13xxx);
return ret;
}
static int mc13xxx_rtc_set_mmss(struct device *dev, time64_t secs)
{
struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
unsigned int seconds, days;
unsigned int alarmseconds;
int ret;
days = div_s64_rem(secs, SEC_PER_DAY, &seconds);
mc13xxx_lock(priv->mc13xxx);
/*
* temporarily invalidate alarm to prevent triggering it when the day is
* already updated while the time isn't yet.
*/
ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCTODA, &alarmseconds);
if (unlikely(ret))
goto out;
if (alarmseconds < SEC_PER_DAY) {
ret = mc13xxx_reg_write(priv->mc13xxx,
MC13XXX_RTCTODA, 0x1ffff);
if (unlikely(ret))
goto out;
}
/*
* write seconds=0 to prevent a day switch between writing days
* and seconds below
*/
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTOD, 0);
if (unlikely(ret))
goto out;
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCDAY, days);
if (unlikely(ret))
goto out;
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTOD, seconds);
if (unlikely(ret))
goto out;
/* restore alarm */
if (alarmseconds < SEC_PER_DAY) {
ret = mc13xxx_reg_write(priv->mc13xxx,
MC13XXX_RTCTODA, alarmseconds);
if (unlikely(ret))
goto out;
}
if (!priv->valid) {
ret = mc13xxx_irq_ack(priv->mc13xxx, MC13XXX_IRQ_RTCRST);
if (unlikely(ret))
goto out;
ret = mc13xxx_irq_unmask(priv->mc13xxx, MC13XXX_IRQ_RTCRST);
}
out:
priv->valid = !ret;
mc13xxx_unlock(priv->mc13xxx);
return ret;
}
