/**
* iio_simple_dummy_event_handler() - identify and pass on event
* @irq: irq of event line
* @private: pointer to device instance state.
*
* This handler is responsible for querying the device to find out what
* event occurred and for then pushing that event towards userspace.
* Here only one event occurs so we push that directly on with locally
* grabbed timestamp.
*/
static void iio_simple_dummy_event_handler(struct irq_work *work)
{
struct iio_dummy_state *st = container_of(work, struct iio_dummy_state, work);
struct iio_dev *indio_dev = st->regs->src_dev;
dev_dbg(&indio_dev->dev, "id %x event %x\n",
st->regs->reg_id, st->regs->reg_data);
switch (st->regs->reg_data) {
case 0:
iio_push_event(indio_dev,
IIO_EVENT_CODE(IIO_VOLTAGE, 0, 0,
IIO_EV_DIR_RISING,
IIO_EV_TYPE_THRESH, 0, 0, 0),
iio_get_time_ns());
break;
case 1:
if (st->activity_running > st->event_val)
iio_push_event(indio_dev,
IIO_EVENT_CODE(IIO_ACTIVITY, 0,
IIO_MOD_RUNNING,
IIO_EV_DIR_RISING,
IIO_EV_TYPE_THRESH,
0, 0, 0),
iio_get_time_ns());
break;
case 2:
if (st->activity_walking < st->event_val)
iio_push_event(indio_dev,
IIO_EVENT_CODE(IIO_ACTIVITY, 0,
IIO_MOD_WALKING,
IIO_EV_DIR_FALLING,
IIO_EV_TYPE_THRESH,
0, 0, 0),
iio_get_time_ns());
break;
case 3:
iio_push_event(indio_dev,
IIO_EVENT_CODE(IIO_STEPS, 0, IIO_NO_MOD,
IIO_EV_DIR_NONE,
IIO_EV_TYPE_CHANGE, 0, 0, 0),
iio_get_time_ns());
break;
default:
break;
}
}
/**
* iio_simple_dummy_event_handler() - identify and pass on event
* @irq: irq of event line
* @private: pointer to device instance state.
*
* This handler is responsible for querying the device to find out what
* event occurred and for then pushing that event towards userspace.
* Here only one event occurs so we push that directly on with locally
* grabbed timestamp.
*/
static irqreturn_t iio_simple_dummy_event_handler(int irq, void *private)
{
struct iio_dev *indio_dev = private;
iio_push_event(indio_dev,
IIO_EVENT_CODE(IIO_VOLTAGE, 0, 0,
IIO_EV_DIR_RISING,
IIO_EV_TYPE_THRESH, 0, 0, 0),
iio_get_time_ns());
return IRQ_HANDLED;
}
/**
* iio_simple_dummy_events_register() - setup interrupt handling for events
* @indio_dev: device instance data
*
* This function requests the threaded interrupt to handle the events.
* Normally the irq is a hardware interrupt and the number comes
* from board configuration files. Here we get it from a companion
* module that fakes the interrupt for us. Note that module in
* no way forms part of this example. Just assume that events magically
* appear via the provided interrupt.
