core/seq/seq_midi.c

78 	struct seq_midisynth *msynth;
86 	msynth = runtime->private_data;
87 	if (msynth == NULL)
94 		if (msynth->parser == NULL)
98 			count = snd_midi_event_encode(msynth->parser, pbuf, res, &ev);
104 				ev.source.port = msynth->seq_port;
106 				snd_seq_kernel_client_dispatch(msynth->seq_client, &ev, 1, 0);
135 	struct seq_midisynth *msynth = private_data;
140 	if (snd_BUG_ON(!msynth))
142 	substream = msynth->output_rfile.output;
152 		snd_midi_event_reset_decode(msynth->parser);
154 		if (msynth->parser == NULL)
156 		len = snd_midi_event_decode(msynth->parser, msg, sizeof(msg), ev);
160 			snd_midi_event_reset_decode(msynth->parser);
166 static int snd_seq_midisynth_new(struct seq_midisynth *msynth,
171 	if (snd_midi_event_new(MAX_MIDI_EVENT_BUF, &msynth->parser) < 0)
173 	msynth->card = card;
174 	msynth->device = device;
175 	msynth->subdevice = subdevice;
183 	struct seq_midisynth *msynth = private_data;
188 	if ((err = snd_rawmidi_kernel_open(msynth->card, msynth->device,
189 					   msynth->subdevice,
191 					   &msynth->input_rfile)) < 0) {
195 	runtime = msynth->input_rfile.input->runtime;
199 	if ((err = snd_rawmidi_input_params(msynth->input_rfile.input, &params)) < 0) {
200 		snd_rawmidi_kernel_release(&msynth->input_rfile);
203 	snd_midi_event_reset_encode(msynth->parser);
205 	runtime->private_data = msynth;
206 	snd_rawmidi_kernel_read(msynth->input_rfile.input, NULL, 0);
214 	struct seq_midisynth *msynth = private_data;
216 	if (snd_BUG_ON(!msynth->input_rfile.input))
218 	err = snd_rawmidi_kernel_release(&msynth->input_rfile);
226 	struct seq_midisynth *msynth = private_data;
230 	if ((err = snd_rawmidi_kernel_open(msynth->card, msynth->device,
231 					   msynth->subdevice,
233 					   &msynth->output_rfile)) < 0) {
241 	if ((err = snd_rawmidi_output_params(msynth->output_rfile.output, &params)) < 0) {
242 		snd_rawmidi_kernel_release(&msynth->output_rfile);
245 	snd_midi_event_reset_decode(msynth->parser);
252 	struct seq_midisynth *msynth = private_data;
254 	if (snd_BUG_ON(!msynth->output_rfile.output))
256 	snd_rawmidi_drain_output(msynth->output_rfile.output);
257 	return snd_rawmidi_kernel_release(&msynth->output_rfile);
261 static void snd_seq_midisynth_delete(struct seq_midisynth *msynth)
263 	if (msynth == NULL)
266 	if (msynth->seq_client > 0) {
268 		snd_seq_event_port_detach(msynth->seq_client, msynth->seq_port);
271 	if (msynth->parser)
272 		snd_midi_event_free(msynth->parser);
280 	struct seq_midisynth *msynth, *ms;
337 	msynth = kcalloc(ports, sizeof(struct seq_midisynth), GFP_KERNEL);
339 	if (msynth == NULL || port == NULL)
343 		ms = &msynth[p];
404 	client->ports[device] = msynth;
414 	if (msynth != NULL) {
416 	      		snd_seq_midisynth_delete(&msynth[p]);
417 		kfree(msynth);
434 	struct seq_midisynth *msynth;
446 	msynth = client->ports[device];
449 		snd_seq_midisynth_delete(&msynth[p]);
450 	kfree(msynth);