1 #include <linux/interrupt.h>
3 #include <linux/mutex.h>
4 #include <linux/device.h>
5 #include <linux/kernel.h>
6 #include <linux/sysfs.h>
7 #include <linux/list.h>
8 #include <linux/spi/spi.h>
12 #include "../trigger.h"
13 #include "adis16209.h"
16 * adis16209_data_rdy_trig_poll() the event handler for the data rdy trig
18 static irqreturn_t adis16209_data_rdy_trig_poll(int irq, void *trig)
20 iio_trigger_poll(trig, iio_get_time_ns());
25 * adis16209_data_rdy_trigger_set_state() set datardy interrupt state
27 static int adis16209_data_rdy_trigger_set_state(struct iio_trigger *trig,
30 struct iio_dev *indio_dev = trig->private_data;
32 dev_dbg(&indio_dev->dev, "%s (%d)\n", __func__, state);
33 return adis16209_set_irq(indio_dev, state);
36 int adis16209_probe_trigger(struct iio_dev *indio_dev)
39 struct adis16209_state *st = iio_priv(indio_dev);
41 st->trig = iio_allocate_trigger("adis16209-dev%d", indio_dev->id);
42 if (st->trig == NULL) {
47 ret = request_irq(st->us->irq,
48 adis16209_data_rdy_trig_poll,
54 st->trig->dev.parent = &st->us->dev;
55 st->trig->owner = THIS_MODULE;
56 st->trig->private_data = indio_dev;
57 st->trig->set_trigger_state = &adis16209_data_rdy_trigger_set_state;
58 ret = iio_trigger_register(st->trig);
60 /* select default trigger */
61 indio_dev->trig = st->trig;
68 free_irq(st->us->irq, st->trig);
70 iio_free_trigger(st->trig);
75 void adis16209_remove_trigger(struct iio_dev *indio_dev)
77 struct adis16209_state *st = iio_priv(indio_dev);
79 iio_trigger_unregister(st->trig);
80 free_irq(st->us->irq, st->trig);
81 iio_free_trigger(st->trig);