Lines Matching refs:evdev
28 struct evdev { struct
47 struct evdev *evdev; argument
145 ktime_t *ev_time = input_get_timestamp(client->evdev->handle.dev); in __evdev_queue_syn_dropped()
248 struct evdev *evdev = client->evdev; in evdev_pass_values() local
285 wake_up_interruptible(&evdev->wait); in evdev_pass_values()
294 struct evdev *evdev = handle->private; in evdev_events() local
300 client = rcu_dereference(evdev->grab); in evdev_events()
305 list_for_each_entry_rcu(client, &evdev->client_list, node) in evdev_events()
332 struct evdev *evdev = client->evdev; in evdev_flush() local
334 mutex_lock(&evdev->mutex); in evdev_flush()
336 if (evdev->exist && !client->revoked) in evdev_flush()
337 input_flush_device(&evdev->handle, file); in evdev_flush()
339 mutex_unlock(&evdev->mutex); in evdev_flush()
345 struct evdev *evdev = container_of(dev, struct evdev, dev); in evdev_free() local
347 input_put_device(evdev->handle.dev); in evdev_free()
348 kfree(evdev); in evdev_free()
355 static int evdev_grab(struct evdev *evdev, struct evdev_client *client) in evdev_grab() argument
359 if (evdev->grab) in evdev_grab()
362 error = input_grab_device(&evdev->handle); in evdev_grab()
366 rcu_assign_pointer(evdev->grab, client); in evdev_grab()
371 static int evdev_ungrab(struct evdev *evdev, struct evdev_client *client) in evdev_ungrab() argument
373 struct evdev_client *grab = rcu_dereference_protected(evdev->grab, in evdev_ungrab()
374 lockdep_is_held(&evdev->mutex)); in evdev_ungrab()
379 rcu_assign_pointer(evdev->grab, NULL); in evdev_ungrab()
381 input_release_device(&evdev->handle); in evdev_ungrab()
386 static void evdev_attach_client(struct evdev *evdev, in evdev_attach_client() argument
389 spin_lock(&evdev->client_lock); in evdev_attach_client()
390 list_add_tail_rcu(&client->node, &evdev->client_list); in evdev_attach_client()
391 spin_unlock(&evdev->client_lock); in evdev_attach_client()
394 static void evdev_detach_client(struct evdev *evdev, in evdev_detach_client() argument
397 spin_lock(&evdev->client_lock); in evdev_detach_client()
399 spin_unlock(&evdev->client_lock); in evdev_detach_client()
403 static int evdev_open_device(struct evdev *evdev) in evdev_open_device() argument
407 retval = mutex_lock_interruptible(&evdev->mutex); in evdev_open_device()
411 if (!evdev->exist) in evdev_open_device()
413 else if (!evdev->open++) { in evdev_open_device()
414 retval = input_open_device(&evdev->handle); in evdev_open_device()
416 evdev->open--; in evdev_open_device()
419 mutex_unlock(&evdev->mutex); in evdev_open_device()
423 static void evdev_close_device(struct evdev *evdev) in evdev_close_device() argument
425 mutex_lock(&evdev->mutex); in evdev_close_device()
427 if (evdev->exist && !--evdev->open) in evdev_close_device()
428 input_close_device(&evdev->handle); in evdev_close_device()
430 mutex_unlock(&evdev->mutex); in evdev_close_device()
437 static void evdev_hangup(struct evdev *evdev) in evdev_hangup() argument
441 spin_lock(&evdev->client_lock); in evdev_hangup()
442 list_for_each_entry(client, &evdev->client_list, node) in evdev_hangup()
444 spin_unlock(&evdev->client_lock); in evdev_hangup()
446 wake_up_interruptible(&evdev->wait); in evdev_hangup()
452 struct evdev *evdev = client->evdev; in evdev_release() local
455 mutex_lock(&evdev->mutex); in evdev_release()
456 evdev_ungrab(evdev, client); in evdev_release()
457 mutex_unlock(&evdev->mutex); in evdev_release()
459 evdev_detach_client(evdev, client); in evdev_release()
466 evdev_close_device(evdev); in evdev_release()
482 struct evdev *evdev = container_of(inode->i_cdev, struct evdev, cdev); in evdev_open() local
483 unsigned int bufsize = evdev_compute_buffer_size(evdev->handle.dev); in evdev_open()
496 client->evdev = evdev; in evdev_open()
497 evdev_attach_client(evdev, client); in evdev_open()
499 error = evdev_open_device(evdev); in evdev_open()
509 evdev_detach_client(evdev, client); in evdev_open()
518 struct evdev *evdev = client->evdev; in evdev_write() local
525 retval = mutex_lock_interruptible(&evdev->mutex); in evdev_write()
529 if (!evdev->exist || client->revoked) { in evdev_write()
542 input_inject_event(&evdev->handle, in evdev_write()
548 mutex_unlock(&evdev->mutex); in evdev_write()
574 struct evdev *evdev = client->evdev; in evdev_read() local
583 if (!evdev->exist || client->revoked) in evdev_read()
610 error = wait_event_interruptible(evdev->wait, in evdev_read()
612 !evdev->exist || client->revoked); in evdev_read()
625 struct evdev *evdev = client->evdev; in evdev_poll() local
628 poll_wait(file, &evdev->wait, wait); in evdev_poll()
630 if (evdev->exist && !client->revoked) in evdev_poll()
955 static int evdev_revoke(struct evdev *evdev, struct evdev_client *client, in evdev_revoke() argument
959 evdev_ungrab(evdev, client); in evdev_revoke()
960 input_flush_device(&evdev->handle, file); in evdev_revoke()
961 wake_up_interruptible(&evdev->wait); in evdev_revoke()
1045 struct evdev *evdev = client->evdev; in evdev_do_ioctl() local
1046 struct input_dev *dev = evdev->handle.dev; in evdev_do_ioctl()
1083 input_inject_event(&evdev->handle, EV_REP, REP_DELAY, u); in evdev_do_ioctl()
1084 input_inject_event(&evdev->handle, EV_REP, REP_PERIOD, v); in evdev_do_ioctl()
1100 return evdev_grab(evdev, client); in evdev_do_ioctl()
1102 return evdev_ungrab(evdev, client); in evdev_do_ioctl()
1108 return evdev_revoke(evdev, client, file); in evdev_do_ioctl()
1272 struct evdev *evdev = client->evdev; in evdev_ioctl_handler() local
1275 retval = mutex_lock_interruptible(&evdev->mutex); in evdev_ioctl_handler()
1279 if (!evdev->exist || client->revoked) { in evdev_ioctl_handler()
1287 mutex_unlock(&evdev->mutex); in evdev_ioctl_handler()
1325 static void evdev_mark_dead(struct evdev *evdev) in evdev_mark_dead() argument
1327 mutex_lock(&evdev->mutex); in evdev_mark_dead()
1328 evdev->exist = false; in evdev_mark_dead()
1329 mutex_unlock(&evdev->mutex); in evdev_mark_dead()
1332 static void evdev_cleanup(struct evdev *evdev) in evdev_cleanup() argument
1334 struct input_handle *handle = &evdev->handle; in evdev_cleanup()
1336 evdev_mark_dead(evdev); in evdev_cleanup()
1337 evdev_hangup(evdev); in evdev_cleanup()
1340 if (evdev->open) { in evdev_cleanup()
1353 struct evdev *evdev; in evdev_connect() local
1365 evdev = kzalloc(sizeof(struct evdev), GFP_KERNEL); in evdev_connect()
1366 if (!evdev) { in evdev_connect()
1371 INIT_LIST_HEAD(&evdev->client_list); in evdev_connect()
1372 spin_lock_init(&evdev->client_lock); in evdev_connect()
1373 mutex_init(&evdev->mutex); in evdev_connect()
1374 init_waitqueue_head(&evdev->wait); in evdev_connect()
1375 evdev->exist = true; in evdev_connect()
1381 dev_set_name(&evdev->dev, "event%d", dev_no); in evdev_connect()
1383 evdev->handle.dev = input_get_device(dev); in evdev_connect()
1384 evdev->handle.name = dev_name(&evdev->dev); in evdev_connect()
1385 evdev->handle.handler = handler; in evdev_connect()
1386 evdev->handle.private = evdev; in evdev_connect()
1388 evdev->dev.devt = MKDEV(INPUT_MAJOR, minor); in evdev_connect()
1389 evdev->dev.class = &input_class; in evdev_connect()
1390 evdev->dev.parent = &dev->dev; in evdev_connect()
1391 evdev->dev.release = evdev_free; in evdev_connect()
1392 device_initialize(&evdev->dev); in evdev_connect()
1394 error = input_register_handle(&evdev->handle); in evdev_connect()
1398 cdev_init(&evdev->cdev, &evdev_fops); in evdev_connect()
1400 error = cdev_device_add(&evdev->cdev, &evdev->dev); in evdev_connect()
1407 evdev_cleanup(evdev); in evdev_connect()
1408 input_unregister_handle(&evdev->handle); in evdev_connect()
1410 put_device(&evdev->dev); in evdev_connect()
1418 struct evdev *evdev = handle->private; in evdev_disconnect() local
1420 cdev_device_del(&evdev->cdev, &evdev->dev); in evdev_disconnect()
1421 evdev_cleanup(evdev); in evdev_disconnect()
1422 input_free_minor(MINOR(evdev->dev.devt)); in evdev_disconnect()
1424 put_device(&evdev->dev); in evdev_disconnect()