staging/greybus/fw-download.c

33 	struct fw_download	*fw_download;
36 struct fw_download {
48 	dev_dbg(fw_req->fw_download->parent, "firmware %s released\n",
66 		ida_free(&fw_req->fw_download->id_map, fw_req->firmware_id);
91 static struct fw_request *get_fw_req(struct fw_download *fw_download,
96 	mutex_lock(&fw_download->mutex);
98 	list_for_each_entry(fw_req, &fw_download->fw_requests, node) {
108 	mutex_unlock(&fw_download->mutex);
113 static void free_firmware(struct fw_download *fw_download,
120 	mutex_lock(&fw_download->mutex);
122 	mutex_unlock(&fw_download->mutex);
133 	struct fw_download *fw_download = fw_req->fw_download;
135 	dev_err(fw_download->parent,
140 	free_firmware(fw_download, fw_req);
145 	struct fw_download *fw_download = fw_req->fw_download;
150 	dev_err(fw_download->parent,
155 	free_firmware(fw_download, fw_req);
161 static struct fw_request *find_firmware(struct fw_download *fw_download,
164 	struct gb_interface *intf = fw_download->connection->bundle->intf;
173 	ret = ida_alloc_range(&fw_download->id_map, 1, 255, GFP_KERNEL);
175 		dev_err(fw_download->parent,
186 	dev_info(fw_download->parent, "Requested firmware package '%s'\n",
189 	ret = request_firmware(&fw_req->fw, fw_req->name, fw_download->parent);
191 		dev_err(fw_download->parent,
197 	fw_req->fw_download = fw_download;
200 	mutex_lock(&fw_download->mutex);
201 	list_add(&fw_req->node, &fw_download->fw_requests);
202 	mutex_unlock(&fw_download->mutex);
214 	ida_free(&fw_download->id_map, fw_req->firmware_id);
224 	struct fw_download *fw_download = gb_connection_get_data(connection);
231 		dev_err(fw_download->parent,
243 		dev_err(fw_download->parent,
248 	fw_req = find_firmware(fw_download, tag);
253 		dev_err(fw_download->parent, "error allocating response\n");
254 		free_firmware(fw_download, fw_req);
262 	dev_dbg(fw_download->parent,
271 	struct fw_download *fw_download = gb_connection_get_data(connection);
281 		dev_err(fw_download->parent,
292 	fw_req = get_fw_req(fw_download, firmware_id);
294 		dev_err(fw_download->parent,
320 		dev_err(fw_download->parent,
329 		dev_err(fw_download->parent,
338 	dev_dbg(fw_download->parent,
354 	struct fw_download *fw_download = gb_connection_get_data(connection);
360 		dev_err(fw_download->parent,
369 	fw_req = get_fw_req(fw_download, firmware_id);
371 		dev_err(fw_download->parent,
378 	free_firmware(fw_download, fw_req);
381 	dev_dbg(fw_download->parent, "release firmware\n");
406 	struct fw_download *fw_download;
412 	fw_download = kzalloc(sizeof(*fw_download), GFP_KERNEL);
413 	if (!fw_download)
416 	fw_download->parent = &connection->bundle->dev;
417 	INIT_LIST_HEAD(&fw_download->fw_requests);
418 	ida_init(&fw_download->id_map);
419 	gb_connection_set_data(connection, fw_download);
420 	fw_download->connection = connection;
421 	mutex_init(&fw_download->mutex);
430 	ida_destroy(&fw_download->id_map);
431 	kfree(fw_download);
438 	struct fw_download *fw_download;
444 	fw_download = gb_connection_get_data(connection);
445 	gb_connection_disable(fw_download->connection);
451 	mutex_lock(&fw_download->mutex);
452 	list_for_each_entry(fw_req, &fw_download->fw_requests, node)
454 	mutex_unlock(&fw_download->mutex);
457 	list_for_each_entry_safe(fw_req, tmp, &fw_download->fw_requests, node) {
459 		free_firmware(fw_download, fw_req);
463 	ida_destroy(&fw_download->id_map);
464 	kfree(fw_download);