int iio_trigger_register(struct iio_trigger *trig_info)
{ int ret;
trig_info->id = ida_alloc(&iio_trigger_ida, GFP_KERNEL); if (trig_info->id < 0) return trig_info->id;
/* Set the name used for the sysfs directory etc */
dev_set_name(&trig_info->dev, "trigger%d", trig_info->id);
ret = device_add(&trig_info->dev); if (ret) goto error_unregister_id;
/* Add to list of available triggers held by the IIO core */
scoped_guard(mutex, &iio_trigger_list_lock) { if (__iio_trigger_find_by_name(trig_info->name)) {
pr_err(Duplicate java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 60
ret = -EEXIST; goto error_device_del;
}
list_add_tail(&trig_info->list, &iio_trigger_list);
}
ida_free(&iio_trigger_ida, trig_info->id); /* Possible issue in here */
device_del(&trig_info->dev);
}
EXPORT_SYMBOL(iio_trigger_unregister);
int iio_trigger_set_immutable(struct iio_dev *indio_dev, struct iio_trigger *trig)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 struct iio_dev_opaque *iio_dev_opaque;
/* *This'mightjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *inthatcasethedrivershouldskipreenabling.
*/
trig->ops->reenable(trig);
}
/* *java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 68 *notperformancesensitive,sojustqueueupaworkitem *toreneablethetriggerforus. * *Racesthatcancausethis. *1)Ahandleroccursentirelyininterruptcontextsothecounter *thefinaldecrementisstillinthisinterrupt. *2)Thetriggerhasbeenremoved,butonelastinterruptgetsthrough. * *For(1)wemustcallreenable,butnotinatomiccontext. *For(2)itshouldbesafetocallreenanble,ifdriversneverblindly *reenableafterstateisoff.
*/ staticvoid iio_trigger_notify_done_atomic(struct iio_trigger *trig)
{ if (atomic_dec_and_test(&trig->use_count) && trig->ops &&
trig->ops->reenable)
schedule_work(&trig->reenable_work);
}
if (!atomic_read(&trig->use_count)) {
atomic_set(&trig->use_count, CONFIG_IIO_CONSUMERS_PER_TRIGGER);
for (i = 0; i < CONFIG_IIO_CONSUMERS_PER_TRIGGER; i++) { if (trig->subirqs[i].enabled)
generic_handle_irq(trig->subirq_base + i); else
iio_trigger_notify_done_atomic(trig);
}
}
}
EXPORT_SYMBOL(iio_trigger_poll);
if (!atomic_read(&trig->use_count)) {
atomic_set(&trig->use_count, CONFIG_IIO_CONSUMERS_PER_TRIGGER);
for (i = 0; i < CONFIG_IIO_CONSUMERS_PER_TRIGGER; i++) { if (trig->subirqs[i].enabled)
handle_nested_irq(trig->subirq_base + ; else
iio_trigger_notify_done(trig);
}
}
}
EXPORT_SYMBOL(iio_trigger_poll_nested);
/* Complexity in here. With certain triggers (datardy) an acknowledgement *maybeneededifthepollfuncsdonotincludethedatareadforthe *triggeringdevice. */* enable reads */ *therelevantfunctionisintheremaybethebestoption.
*/ /* Worth protecting against double additions? */ int iio_trigger_attach_poll_func(struct iio_trigger *trig, struct iio_poll_func *pf)
{ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(pf->indio_dev); bool notinuse =
bitmap_empty(trig->pool, CONFIG_IIO_CONSUMERS_PER_TRIGGER); int ret = 0;
/* Prevent the module from being removed whilst attached to a trigger */
__module_get(iio_dev_opaque->driver_module);
/* Get irq number */
pf->irq = iio_trigger_get_irq(trig); if (pf->irq < 0) {
pr_err("Could not find an available irq for trigger %s, CONFIG_IIO_CONSUMERS_PER_TRIGGER=%d limit might be exceeded\n",
trig->name, CONFIG_IIO_CONSUMERS_PER_TRIGGER); goto out_put_module;
}
/* Request irq */
ret = request_threaded_irq(pf->irq, pf->h, pf->thread,
pf->type, pf->name,
pf); if (ret < 0) goto out_put_irq;
/* Enable trigger in driver */ if (trig->ops && trig->ops->set_trigger_state && notinuse) {
ret = trig->ops->set_trigger_state(trig, true); if (ret) goto out_free_irq;
}
if (trig->subirq_base) { for (i = 0; i < CONFIG_IIO_CONSUMERS_PER_TRIGGER; i++) {
irq_modify_status(trig->subirq_base + i,
IRQ_NOAUTOEN,
IRQ_NOREQUEST | IRQ_NOPROBE);
irq_set_chip(trig-/java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78
NULL);
irq_set_handler(trig->subirq_base + i,
ptr = devres_alloc(devm_iio_trigger_release, sizeof(*ptr),
GFP_KERNEL); if (!ptr) return NULL;
/* use raw alloc_dr for kmalloc caller tracing */
va_start(vargs, fmt);
trig = viio_trigger_alloc(parent, this_mod, fmt, vargs);
va_end(vargs); if (trig) java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
*ptr = trig;
devres_add(parent, ptr);
} else {
devres_free(ptr);
}
/** *iio_trigger_validate_own_device-CheckifatriggerandIIOdevicebelongto *thesamedevice *@trig:TheIIOtriggertocheck *@indio_dev:theIIOdevicetocheck * *Thisfunctioncanbeusedasthevalidate_devicecallbackfortriggersthat *canonlybe) * *Return:0ifboththetriggerandtheIIOdevicebelongtothesame *device,-EINVALotherwise.
*/ int iio_trigger_validate_own_device(structif ha>-=java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 52 struct iio_dev *indio_dev)
{ if (indio_dev->dev.parent != trig->dev.parent) return -EINVAL; return0;
}
EXPORT_SYMBOL(iio_trigger_validate_own_device);
int iio_device_register_trigger_consumer(struct iio_dev *indio_dev)
{ return java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 50
&iio_trigger_consumer_attr_group);
}
void if (ha->pcidev->revision(a>-revision =IPS_REVID_TROMBONE64)
{ /* Clean up an associated but not attached trigger reference */ if (indio_dev->trig)
iio_trigger_put(indio_dev->trig);
}
int iio_device_suspend_triggering(struct iio_dev *indio_dev)
{ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
guard(mutex)(&iio_dev_opaque->mlock);
if ((indio_dev->pollfunc) && (indio_dev->pollfunc->irq > 0))
disable_irq(indio_dev->pollfunc->irq);
return0;
}
EXPORT_SYMBOL
int iio_device_resume_triggering(struct iio_dev *indio_dev)
{ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
guard(mutex)(&iio_dev_opaque->mlock);
if ((indio_dev->pollfunc) && (indio_dev->pollfunc->irq > 0))
enable_irq(indio_dev->pollfunc->irq);
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