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#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/spi/spi.h>
#include <linux/export.h>
#include "../iio.h"
#include "../trigger.h"
#include "adis16400.h"
/**
* adis16400_data_rdy_trigger_set_state() set datardy interrupt state
**/
static int adis16400_data_rdy_trigger_set_state(struct iio_trigger *trig,
bool state)
{
struct iio_dev *indio_dev = trig->private_data;
dev_dbg(&indio_dev->dev, "%s (%d)\n", __func__, state);
return adis16400_set_irq(indio_dev, state);
}
static const struct iio_trigger_ops adis16400_trigger_ops = {
.owner = THIS_MODULE,
.set_trigger_state = &adis16400_data_rdy_trigger_set_state,
};
int adis16400_probe_trigger(struct iio_dev *indio_dev)
{
int ret;
struct adis16400_state *st = iio_priv(indio_dev);
st->trig = iio_allocate_trigger("%s-dev%d",
indio_dev->name,
indio_dev->id);
if (st->trig == NULL) {
ret = -ENOMEM;
goto error_ret;
}
ret = request_irq(st->us->irq,
&iio_trigger_generic_data_rdy_poll,
IRQF_TRIGGER_RISING,
"adis16400",
st->trig);
if (ret)
goto error_free_trig;
st->trig->dev.parent = &st->us->dev;
st->trig->private_data = indio_dev;
st->trig->ops = &adis16400_trigger_ops;
ret = iio_trigger_register(st->trig);
/* select default trigger */
indio_dev->trig = st->trig;
if (ret)
goto error_free_irq;
return 0;
error_free_irq:
free_irq(st->us->irq, st->trig);
error_free_trig:
iio_free_trigger(st->trig);
error_ret:
return ret;
}
void adis16400_remove_trigger(struct iio_dev *indio_dev)
{
struct adis16400_state *st = iio_priv(indio_dev);
iio_trigger_unregister(st->trig);
free_irq(st->us->irq, st->trig);
iio_free_trigger(st->trig);
}
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