cec/core/cec-core.c

169 static void cec_devnode_unregister(struct cec_adapter *adap)
171 	struct cec_devnode *devnode = &adap->devnode;
191 	mutex_lock(&adap->lock);
192 	__cec_s_phys_addr(adap, CEC_PHYS_ADDR_INVALID, false);
193 	__cec_s_log_addrs(adap, NULL, false);
194 	// Disable the adapter (since adap->devnode.unregistered is true)
195 	cec_adap_enable(adap);
196 	mutex_unlock(&adap->lock);
207 	struct cec_adapter *adap = sf->private;
221 		if (!call_op(adap, error_inj_parse_line, line)) {
232 	struct cec_adapter *adap = sf->private;
234 	return call_op(adap, error_inj_show, sf);
255 	struct cec_adapter *adap;
268 	adap = kzalloc(sizeof(*adap), GFP_KERNEL);
269 	if (!adap)
271 	strscpy(adap->name, name, sizeof(adap->name));
272 	adap->phys_addr = CEC_PHYS_ADDR_INVALID;
273 	adap->cec_pin_is_high = true;
274 	adap->log_addrs.cec_version = CEC_OP_CEC_VERSION_2_0;
275 	adap->log_addrs.vendor_id = CEC_VENDOR_ID_NONE;
276 	adap->capabilities = caps;
278 		adap->capabilities |= CEC_CAP_PHYS_ADDR;
279 	adap->needs_hpd = caps & CEC_CAP_NEEDS_HPD;
280 	adap->available_log_addrs = available_las;
281 	adap->sequence = 0;
282 	adap->ops = ops;
283 	adap->priv = priv;
284 	mutex_init(&adap->lock);
285 	INIT_LIST_HEAD(&adap->transmit_queue);
286 	INIT_LIST_HEAD(&adap->wait_queue);
287 	init_waitqueue_head(&adap->kthread_waitq);
289 	/* adap->devnode initialization */
290 	INIT_LIST_HEAD(&adap->devnode.fhs);
291 	mutex_init(&adap->devnode.lock_fhs);
292 	mutex_init(&adap->devnode.lock);
294 	adap->kthread = kthread_run(cec_thread_func, adap, "cec-%s", name);
295 	if (IS_ERR(adap->kthread)) {
297 		res = PTR_ERR(adap->kthread);
298 		kfree(adap);
304 		return adap;
307 	adap->rc = rc_allocate_device(RC_DRIVER_SCANCODE);
308 	if (!adap->rc) {
311 		kthread_stop(adap->kthread);
312 		kfree(adap);
316 	snprintf(adap->input_phys, sizeof(adap->input_phys),
317 		 "%s/input0", adap->name);
319 	adap->rc->device_name = adap->name;
320 	adap->rc->input_phys = adap->input_phys;
321 	adap->rc->input_id.bustype = BUS_CEC;
322 	adap->rc->input_id.vendor = 0;
323 	adap->rc->input_id.product = 0;
324 	adap->rc->input_id.version = 1;
325 	adap->rc->driver_name = CEC_NAME;
326 	adap->rc->allowed_protocols = RC_PROTO_BIT_CEC;
327 	adap->rc->priv = adap;
328 	adap->rc->map_name = RC_MAP_CEC;
329 	adap->rc->timeout = MS_TO_US(550);
331 	return adap;
335 int cec_register_adapter(struct cec_adapter *adap,
340 	if (IS_ERR_OR_NULL(adap))
346 	adap->owner = parent->driver->owner;
347 	adap->devnode.dev.parent = parent;
348 	if (!adap->xfer_timeout_ms)
349 		adap->xfer_timeout_ms = CEC_XFER_TIMEOUT_MS;
352 	if (adap->capabilities & CEC_CAP_RC) {
353 		adap->rc->dev.parent = parent;
354 		res = rc_register_device(adap->rc);
358 			       adap->name);
359 			rc_free_device(adap->rc);
360 			adap->rc = NULL;
366 	res = cec_devnode_register(&adap->devnode, adap->owner);
370 		rc_unregister_device(adap->rc);
371 		adap->rc = NULL;
376 	dev_set_drvdata(&adap->devnode.dev, adap);
381 	adap->cec_dir = debugfs_create_dir(dev_name(&adap->devnode.dev),
384 	debugfs_create_devm_seqfile(&adap->devnode.dev, "status", adap->cec_dir,
387 	if (!adap->ops->error_inj_show || !adap->ops->error_inj_parse_line)
389 	debugfs_create_file("error-inj", 0644, adap->cec_dir, adap,
396 void cec_unregister_adapter(struct cec_adapter *adap)
398 	if (IS_ERR_OR_NULL(adap))
403 	rc_unregister_device(adap->rc);
404 	adap->rc = NULL;
406 	debugfs_remove_recursive(adap->cec_dir);
408 	cec_notifier_cec_adap_unregister(adap->notifier, adap);
410 	cec_devnode_unregister(adap);
414 void cec_delete_adapter(struct cec_adapter *adap)
416 	if (IS_ERR_OR_NULL(adap))
418 	if (adap->kthread_config)
419 		kthread_stop(adap->kthread_config);
420 	kthread_stop(adap->kthread);
421 	if (adap->ops->adap_free)
422 		adap->ops->adap_free(adap);
424 	rc_free_device(adap->rc);
426 	kfree(adap);