| #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); |
| } |