Exemplo n.º 1
0
Arquivo: umidi.c Projeto: bluhm/sys 
/*
 * midi_if stuffs
 */
int
umidi_open(void *addr,
	   int flags,
	   void (*iintr)(void *, int),
	   void (*ointr)(void *),
	   void *arg)
{
	struct umidi_mididev *mididev = addr;
	struct umidi_softc *sc = mididev->sc;

	DPRINTF(("%s: sc=%p\n", __func__, sc));

	if (!sc)
		return ENXIO;
	if (mididev->opened)
		return EBUSY;
	if (usbd_is_dying(sc->sc_udev))
		return EIO;

	mididev->opened = 1;
	mididev->flags = flags;
	if ((mididev->flags & FWRITE) && mididev->out_jack)
		open_out_jack(mididev->out_jack, arg, ointr);
	if ((mididev->flags & FREAD) && mididev->in_jack)
		open_in_jack(mididev->in_jack, arg, iintr);
	return 0;
}
Exemplo n.º 2
0
/*
 * midi_if stuffs
 */
int
umidi_open(void *addr,
	   int flags,
	   void (*iintr)(void *, int),
	   void (*ointr)(void *),
	   void *arg)
{
	struct umidi_mididev *mididev = addr;
	struct umidi_softc *sc = mididev->sc;
	usbd_status err;

	DPRINTF(("umidi_open: sc=%p\n", sc));

	if (!sc)
		return ENXIO;
	if (mididev->opened)
		return EBUSY;
	if (sc->sc_dying)
		return EIO;

	mididev->opened = 1;
	mididev->flags = flags;
	if ((mididev->flags & FWRITE) && mididev->out_jack) {
		err = open_out_jack(mididev->out_jack, arg, ointr);
		if ( err != USBD_NORMAL_COMPLETION )
			goto bad;
	}
	if ((mididev->flags & FREAD) && mididev->in_jack) {
		err = open_in_jack(mididev->in_jack, arg, iintr);
		if ( err != USBD_NORMAL_COMPLETION
		&&   err != USBD_IN_PROGRESS )
			goto bad;
	}

	return 0;
bad:
	mididev->opened = 0;
	DPRINTF(("umidi_open: usbd_status %d\n", err));
	return USBD_IN_USE == err ? EBUSY : EIO;
}