usb/6fire/midi.c

24 	struct midi_runtime *rt = urb->context;
28 	spin_lock_irqsave(&rt->out_lock, flags);
30 	if (rt->out) {
31 		ret = snd_rawmidi_transmit(rt->out, rt->out_buffer + 4,
34 			rt->out_buffer[1] = ret + 2;
35 			rt->out_buffer[3] = rt->out_serial++;
44 			rt->out = NULL;
46 	spin_unlock_irqrestore(&rt->out_lock, flags);
50 		struct midi_runtime *rt, u8 *data, int length)
54 	spin_lock_irqsave(&rt->in_lock, flags);
55 	if (rt->in)
56 		snd_rawmidi_receive(rt->in, data, length);
57 	spin_unlock_irqrestore(&rt->in_lock, flags);
73 	struct midi_runtime *rt = alsa_sub->rmidi->private_data;
74 	struct urb *urb = &rt->out_urb;
78 	spin_lock_irqsave(&rt->out_lock, flags);
80 		if (rt->out) { /* we are already transmitting so just return */
81 			spin_unlock_irqrestore(&rt->out_lock, flags);
85 		ret = snd_rawmidi_transmit(alsa_sub, rt->out_buffer + 4,
88 			rt->out_buffer[1] = ret + 2;
89 			rt->out_buffer[3] = rt->out_serial++;
98 				rt->out = alsa_sub;
100 	} else if (rt->out == alsa_sub)
101 		rt->out = NULL;
102 	spin_unlock_irqrestore(&rt->out_lock, flags);
107 	struct midi_runtime *rt = alsa_sub->rmidi->private_data;
110 	while (rt->out && retry++ < 100)
127 	struct midi_runtime *rt = alsa_sub->rmidi->private_data;
130 	spin_lock_irqsave(&rt->in_lock, flags);
132 		rt->in = alsa_sub;
134 		rt->in = NULL;
135 	spin_unlock_irqrestore(&rt->in_lock, flags);
154 	struct midi_runtime *rt = kzalloc(sizeof(struct midi_runtime),
158 	if (!rt)
161 	rt->out_buffer = kzalloc(MIDI_BUFSIZE, GFP_KERNEL);
162 	if (!rt->out_buffer) {
163 		kfree(rt);
167 	rt->chip = chip;
168 	rt->in_received = usb6fire_midi_in_received;
169 	rt->out_buffer[0] = 0x80; /* 'send midi' command */
170 	rt->out_buffer[1] = 0x00; /* size of data */
171 	rt->out_buffer[2] = 0x00; /* always 0 */
172 	spin_lock_init(&rt->in_lock);
173 	spin_lock_init(&rt->out_lock);
175 	comm_rt->init_urb(comm_rt, &rt->out_urb, rt->out_buffer, rt,
178 	ret = snd_rawmidi_new(chip->card, "6FireUSB", 0, 1, 1, &rt->instance);
180 		kfree(rt->out_buffer);
181 		kfree(rt);
185 	rt->instance->private_data = rt;
186 	strcpy(rt->instance->name, "DMX6FireUSB MIDI");
187 	rt->instance->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT |
190 	snd_rawmidi_set_ops(rt->instance, SNDRV_RAWMIDI_STREAM_OUTPUT,
192 	snd_rawmidi_set_ops(rt->instance, SNDRV_RAWMIDI_STREAM_INPUT,
195 	chip->midi = rt;
201 	struct midi_runtime *rt = chip->midi;
203 	if (rt)
204 		usb_poison_urb(&rt->out_urb);
209 	struct midi_runtime *rt = chip->midi;
211 	kfree(rt->out_buffer);
212 	kfree(rt);