58 static void snd_virmidi_init_event(struct snd_virmidi *vmidi,  in snd_virmidi_init_event()  argument
62 	ev->source.port = vmidi->port;  in snd_virmidi_init_event()
63 	switch (vmidi->seq_mode) {  in snd_virmidi_init_event()
69 		ev->dest.client = vmidi->client;  in snd_virmidi_init_event()
70 		ev->dest.port = vmidi->port;  in snd_virmidi_init_event()
83 	struct snd_virmidi *vmidi;  in snd_virmidi_dev_receive_event()  local
91 	list_for_each_entry(vmidi, &rdev->filelist, list) {  in snd_virmidi_dev_receive_event()
92 		if (!READ_ONCE(vmidi->trigger))  in snd_virmidi_dev_receive_event()
97 			snd_seq_dump_var_event(ev, (snd_seq_dump_func_t)snd_rawmidi_receive, vmidi->substream);  in snd_virmidi_dev_receive_event()
99 			len = snd_midi_event_decode(vmidi->parser, msg, sizeof(msg), ev);  in snd_virmidi_dev_receive_event()
101 				snd_rawmidi_receive(vmidi->substream, msg, len);  in snd_virmidi_dev_receive_event()
131 	struct snd_virmidi *vmidi = substream->runtime->private_data;  in snd_virmidi_input_trigger()  local
133 	WRITE_ONCE(vmidi->trigger, !!up);  in snd_virmidi_input_trigger()
141 	struct snd_virmidi *vmidi;  in snd_vmidi_output_work()  local
146 	vmidi = container_of(work, struct snd_virmidi, output_work);  in snd_vmidi_output_work()
147 	substream = vmidi->substream;  in snd_vmidi_output_work()
150 	if (vmidi->seq_mode == SNDRV_VIRMIDI_SEQ_DISPATCH &&  in snd_vmidi_output_work()
151 	    !(vmidi->rdev->flags & SNDRV_VIRMIDI_SUBSCRIBE)) {  in snd_vmidi_output_work()
158 	while (READ_ONCE(vmidi->trigger)) {  in snd_vmidi_output_work()
161 		if (!snd_midi_event_encode_byte(vmidi->parser, input,  in snd_vmidi_output_work()
162 						&vmidi->event))  in snd_vmidi_output_work()
164 		if (vmidi->event.type != SNDRV_SEQ_EVENT_NONE) {  in snd_vmidi_output_work()
165 			ret = snd_seq_kernel_client_dispatch(vmidi->client,  in snd_vmidi_output_work()
166 							     &vmidi->event,  in snd_vmidi_output_work()
168 			vmidi->event.type = SNDRV_SEQ_EVENT_NONE;  in snd_vmidi_output_work()
182 	struct snd_virmidi *vmidi = substream->runtime->private_data;  in snd_virmidi_output_trigger()  local
184 	WRITE_ONCE(vmidi->trigger, !!up);  in snd_virmidi_output_trigger()
186 		queue_work(system_highpri_wq, &vmidi->output_work);  in snd_virmidi_output_trigger()
196 	struct snd_virmidi *vmidi;  in snd_virmidi_input_open()  local
198 	vmidi = kzalloc(sizeof(*vmidi), GFP_KERNEL);  in snd_virmidi_input_open()
199 	if (vmidi == NULL)  in snd_virmidi_input_open()
201 	vmidi->substream = substream;  in snd_virmidi_input_open()
202 	if (snd_midi_event_new(0, &vmidi->parser) < 0) {  in snd_virmidi_input_open()
203 		kfree(vmidi);  in snd_virmidi_input_open()
206 	vmidi->seq_mode = rdev->seq_mode;  in snd_virmidi_input_open()
207 	vmidi->client = rdev->client;  in snd_virmidi_input_open()
208 	vmidi->port = rdev->port;	  in snd_virmidi_input_open()
209 	runtime->private_data = vmidi;  in snd_virmidi_input_open()
212 	list_add_tail(&vmidi->list, &rdev->filelist);  in snd_virmidi_input_open()
215 	vmidi->rdev = rdev;  in snd_virmidi_input_open()
226 	struct snd_virmidi *vmidi;  in snd_virmidi_output_open()  local
228 	vmidi = kzalloc(sizeof(*vmidi), GFP_KERNEL);  in snd_virmidi_output_open()
229 	if (vmidi == NULL)  in snd_virmidi_output_open()
231 	vmidi->substream = substream;  in snd_virmidi_output_open()
232 	if (snd_midi_event_new(MAX_MIDI_EVENT_BUF, &vmidi->parser) < 0) {  in snd_virmidi_output_open()
233 		kfree(vmidi);  in snd_virmidi_output_open()
236 	vmidi->seq_mode = rdev->seq_mode;  in snd_virmidi_output_open()
237 	vmidi->client = rdev->client;  in snd_virmidi_output_open()
238 	vmidi->port = rdev->port;  in snd_virmidi_output_open()
239 	snd_virmidi_init_event(vmidi, &vmidi->event);  in snd_virmidi_output_open()
240 	vmidi->rdev = rdev;  in snd_virmidi_output_open()
241 	INIT_WORK(&vmidi->output_work, snd_vmidi_output_work);  in snd_virmidi_output_open()
242 	runtime->private_data = vmidi;  in snd_virmidi_output_open()
252 	struct snd_virmidi *vmidi = substream->runtime->private_data;  in snd_virmidi_input_close()  local
256 	list_del(&vmidi->list);  in snd_virmidi_input_close()
259 	snd_midi_event_free(vmidi->parser);  in snd_virmidi_input_close()
261 	kfree(vmidi);  in snd_virmidi_input_close()
270 	struct snd_virmidi *vmidi = substream->runtime->private_data;  in snd_virmidi_output_close()  local
272 	WRITE_ONCE(vmidi->trigger, false); /* to be sure */  in snd_virmidi_output_close()
273 	cancel_work_sync(&vmidi->output_work);  in snd_virmidi_output_close()
274 	snd_midi_event_free(vmidi->parser);  in snd_virmidi_output_close()
276 	kfree(vmidi);  in snd_virmidi_output_close()