1 // SPDX-License-Identifier: GPL-2.0-or-later
35 	.name = "dsp_pipeline",
46 	for (i = 0; i < elem->num_args; i++)  in attr_show_args()
47 		p += sprintf(p, "Name:        %s\n%s%s%sDescription: %s\n\n",  in attr_show_args()
48 			     elem->args[i].name,  in attr_show_args()
49 			     elem->args[i].def ? "Default:     " : "",  in attr_show_args()
50 			     elem->args[i].def ? elem->args[i].def : "",  in attr_show_args()
51 			     elem->args[i].def ? "\n" : "",  in attr_show_args()
52 			     elem->args[i].desc);  in attr_show_args()
54 	return p - buf;  in attr_show_args()
64 	struct dsp_element_entry *entry =  in mISDN_dsp_dev_release()  local
66 	list_del(&entry->list);  in mISDN_dsp_dev_release()
67 	kfree(entry);  in mISDN_dsp_dev_release()
72 	struct dsp_element_entry *entry;  in mISDN_dsp_element_register()  local
76 		return -EINVAL;  in mISDN_dsp_element_register()
78 	entry = kzalloc(sizeof(struct dsp_element_entry), GFP_ATOMIC);  in mISDN_dsp_element_register()
79 	if (!entry)  in mISDN_dsp_element_register()
80 		return -ENOMEM;  in mISDN_dsp_element_register()
82 	INIT_LIST_HEAD(&entry->list);  in mISDN_dsp_element_register()
83 	entry->elem = elem;  in mISDN_dsp_element_register()
85 	entry->dev.class = &elements_class;  in mISDN_dsp_element_register()
86 	entry->dev.release = mISDN_dsp_dev_release;  in mISDN_dsp_element_register()
87 	dev_set_drvdata(&entry->dev, elem);  in mISDN_dsp_element_register()
88 	dev_set_name(&entry->dev, "%s", elem->name);  in mISDN_dsp_element_register()
89 	ret = device_register(&entry->dev);  in mISDN_dsp_element_register()
92 		       __func__, elem->name);  in mISDN_dsp_element_register()
95 	list_add_tail(&entry->list, &dsp_elements);  in mISDN_dsp_element_register()
98 		ret = device_create_file(&entry->dev,  in mISDN_dsp_element_register()
110 	device_unregister(&entry->dev);  in mISDN_dsp_element_register()
113 	put_device(&entry->dev);  in mISDN_dsp_element_register()
120 	struct dsp_element_entry *entry, *n;  in mISDN_dsp_element_unregister()  local
125 	list_for_each_entry_safe(entry, n, &dsp_elements, list)  in mISDN_dsp_element_unregister()
126 		if (entry->elem == elem) {  in mISDN_dsp_element_unregister()
127 			device_unregister(&entry->dev);  in mISDN_dsp_element_unregister()
130 	printk(KERN_ERR "%s: element %s not in list.\n", __func__, elem->name);  in mISDN_dsp_element_unregister()
149 	struct dsp_element_entry *entry, *n;  in dsp_pipeline_module_exit()  local
155 	list_for_each_entry_safe(entry, n, &dsp_elements, list) {  in dsp_pipeline_module_exit()
156 		list_del(&entry->list);  in dsp_pipeline_module_exit()
158 		       __func__, entry->elem->name);  in dsp_pipeline_module_exit()
159 		kfree(entry);  in dsp_pipeline_module_exit()
166 		return -EINVAL;  in dsp_pipeline_init()
168 	INIT_LIST_HEAD(&pipeline->list);  in dsp_pipeline_init()
175 	struct dsp_pipeline_entry *entry, *n;  in _dsp_pipeline_destroy()  local
177 	list_for_each_entry_safe(entry, n, &pipeline->list, list) {  in _dsp_pipeline_destroy()
178 		list_del(&entry->list);  in _dsp_pipeline_destroy()
179 		if (entry->elem == dsp_hwec)  in _dsp_pipeline_destroy()
183 			entry->elem->free(entry->p);  in _dsp_pipeline_destroy()
184 		kfree(entry);  in _dsp_pipeline_destroy()
200 	char *dup, *next, *tok, *name, *args;  in dsp_pipeline_build()  local
201 	struct dsp_element_entry *entry, *n;  in dsp_pipeline_build()  local
206 		return -EINVAL;  in dsp_pipeline_build()
208 	if (!list_empty(&pipeline->list))  in dsp_pipeline_build()
217 		name = strsep(&tok, "(");  in dsp_pipeline_build()
222 		list_for_each_entry_safe(entry, n, &dsp_elements, list)  in dsp_pipeline_build()
223 			if (!strcmp(entry->elem->name, name)) {  in dsp_pipeline_build()
224 				elem = entry->elem;  in dsp_pipeline_build()
230 					       "entry to pipeline: %s (out of "  in dsp_pipeline_build()
231 					       "memory)\n", __func__, elem->name);  in dsp_pipeline_build()
234 				pipeline_entry->elem = elem;  in dsp_pipeline_build()
241 					list_add_tail(&pipeline_entry->list,  in dsp_pipeline_build()
242 						      &pipeline->list);  in dsp_pipeline_build()
244 					pipeline_entry->p = elem->new(args);  in dsp_pipeline_build()
245 					if (pipeline_entry->p) {  in dsp_pipeline_build()
246 						list_add_tail(&pipeline_entry->  in dsp_pipeline_build()
247 							      list, &pipeline->list);  in dsp_pipeline_build()
250 						       "to add entry to pipeline: "  in dsp_pipeline_build()
252 						       __func__, elem->name);  in dsp_pipeline_build()
264 			       "%s\n", __func__, name);  in dsp_pipeline_build()
268 	if (!list_empty(&pipeline->list))  in dsp_pipeline_build()
269 		pipeline->inuse = 1;  in dsp_pipeline_build()
271 		pipeline->inuse = 0;  in dsp_pipeline_build()
279 	struct dsp_pipeline_entry *entry;  in dsp_pipeline_process_tx()  local
284 	list_for_each_entry(entry, &pipeline->list, list)  in dsp_pipeline_process_tx()
285 		if (entry->elem->process_tx)  in dsp_pipeline_process_tx()
286 			entry->elem->process_tx(entry->p, data, len);  in dsp_pipeline_process_tx()
292 	struct dsp_pipeline_entry *entry;  in dsp_pipeline_process_rx()  local
297 	list_for_each_entry_reverse(entry, &pipeline->list, list)  in dsp_pipeline_process_rx()
298 		if (entry->elem->process_rx)  in dsp_pipeline_process_rx()
299 			entry->elem->process_rx(entry->p, data, len, txlen);  in dsp_pipeline_process_rx()