C++ (Cpp) snd_line6_new_midi Examples

Example #1

File: midi.c Project: CSCLOG/beaglebone

/*
	Initialize the Line6 MIDI subsystem.
*/
int line6_init_midi(struct usb_line6 *line6)
{
	static struct snd_device_ops midi_ops = {
		.dev_free = snd_line6_midi_free,
	};

	int err;
	struct snd_line6_midi *line6midi;

	if (!(line6->properties->capabilities & LINE6_BIT_CONTROL)) {
		/* skip MIDI initialization and report success */
		return 0;
	}

	line6midi = kzalloc(sizeof(struct snd_line6_midi), GFP_KERNEL);

	if (line6midi == NULL)
		return -ENOMEM;

	err = line6_midibuf_init(&line6midi->midibuf_in, MIDI_BUFFER_SIZE, 0);
	if (err < 0)
		return err;

	err = line6_midibuf_init(&line6midi->midibuf_out, MIDI_BUFFER_SIZE, 1);
	if (err < 0)
		return err;

	line6midi->line6 = line6;
	line6midi->midi_mask_transmit = 1;
	line6midi->midi_mask_receive = 4;
	line6->line6midi = line6midi;

	err = snd_device_new(line6->card, SNDRV_DEV_RAWMIDI, line6midi,
			     &midi_ops);
	if (err < 0)
		return err;

	snd_card_set_dev(line6->card, line6->ifcdev);

	err = snd_line6_new_midi(line6midi);
	if (err < 0)
		return err;

	err = device_create_file(line6->ifcdev, &dev_attr_midi_mask_transmit);
	if (err < 0)
		return err;

	err = device_create_file(line6->ifcdev, &dev_attr_midi_mask_receive);
	if (err < 0)
		return err;

	init_waitqueue_head(&line6midi->send_wait);
	spin_lock_init(&line6midi->send_urb_lock);
	spin_lock_init(&line6midi->midi_transmit_lock);
	return 0;
}

Example #2

File: midi.c Project: 020gzh/linux

/*
	Initialize the Line 6 MIDI subsystem.
*/
int line6_init_midi(struct usb_line6 *line6)
{
	int err;
	struct snd_rawmidi *rmidi;
	struct snd_line6_midi *line6midi;

	if (!(line6->properties->capabilities & LINE6_CAP_CONTROL)) {
		/* skip MIDI initialization and report success */
		return 0;
	}

	err = snd_line6_new_midi(line6, &rmidi);
	if (err < 0)
		return err;

	line6midi = kzalloc(sizeof(struct snd_line6_midi), GFP_KERNEL);
	if (!line6midi)
		return -ENOMEM;

	rmidi->private_data = line6midi;
	rmidi->private_free = snd_line6_midi_free;

	init_waitqueue_head(&line6midi->send_wait);
	spin_lock_init(&line6midi->lock);
	line6midi->line6 = line6;

	err = line6_midibuf_init(&line6midi->midibuf_in, MIDI_BUFFER_SIZE, 0);
	if (err < 0)
		return err;

	err = line6_midibuf_init(&line6midi->midibuf_out, MIDI_BUFFER_SIZE, 1);
	if (err < 0)
		return err;

	line6->line6midi = line6midi;
	return 0;
}

Example #3

File: midi.c Project: DirtyDroidX/android_kernel_htc_m8ul

int line6_init_midi(struct usb_line6 *line6)
{
	static struct snd_device_ops midi_ops = {
		.dev_free = snd_line6_midi_free,
	};

	int err;
	struct snd_line6_midi *line6midi;

	if (!(line6->properties->capabilities & LINE6_BIT_CONTROL)) {
		
		return 0;
	}

	line6midi = kzalloc(sizeof(struct snd_line6_midi), GFP_KERNEL);

	if (line6midi == NULL)
		return -ENOMEM;

	err = line6_midibuf_init(&line6midi->midibuf_in, MIDI_BUFFER_SIZE, 0);
	if (err < 0) {
		kfree(line6midi);
		return err;
	}

	err = line6_midibuf_init(&line6midi->midibuf_out, MIDI_BUFFER_SIZE, 1);
	if (err < 0) {
		kfree(line6midi->midibuf_in.buf);
		kfree(line6midi);
		return err;
	}

	line6midi->line6 = line6;

	switch(line6->product) {
	case LINE6_DEVID_PODHD300:
	case LINE6_DEVID_PODHD500:
		line6midi->midi_mask_transmit = 1;
		line6midi->midi_mask_receive = 1;
		break;

	default:
		line6midi->midi_mask_transmit = 1;
		line6midi->midi_mask_receive = 4;
	}

	line6->line6midi = line6midi;

	err = snd_device_new(line6->card, SNDRV_DEV_RAWMIDI, line6midi,
			     &midi_ops);
	if (err < 0)
		return err;

	snd_card_set_dev(line6->card, line6->ifcdev);

	err = snd_line6_new_midi(line6midi);
	if (err < 0)
		return err;

	err = device_create_file(line6->ifcdev, &dev_attr_midi_mask_transmit);
	if (err < 0)
		return err;

	err = device_create_file(line6->ifcdev, &dev_attr_midi_mask_receive);
	if (err < 0)
		return err;

	init_waitqueue_head(&line6midi->send_wait);
	spin_lock_init(&line6midi->send_urb_lock);
	spin_lock_init(&line6midi->midi_transmit_lock);
	return 0;
}