/*
* Reset the printer, then wait until it's selected and not busy.
*/
int
ulptopen(dev_t dev, int flag, int mode, struct proc *p)
{
u_char flags = ULPTFLAGS(dev);
struct ulpt_softc *sc;
usbd_status err;
int error;
if (ULPTUNIT(dev) >= ulpt_cd.cd_ndevs)
return (ENXIO);
sc = ulpt_cd.cd_devs[ULPTUNIT(dev)];
if (sc == NULL)
return (ENXIO);
if (sc == NULL || sc->sc_iface == NULL || usbd_is_dying(sc->sc_udev))
return (ENXIO);
if (sc->sc_state)
return (EBUSY);
sc->sc_state = ULPT_INIT;
sc->sc_flags = flags;
DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags));
error = 0;
sc->sc_refcnt++;
if ((flags & ULPT_NOPRIME) == 0) {
ulpt_reset(sc);
if (usbd_is_dying(sc->sc_udev)) {
error = ENXIO;
sc->sc_state = 0;
goto done;
}
}
err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe);
if (err) {
sc->sc_state = 0;
error = EIO;
goto done;
}
if (ulptusein && sc->sc_in != -1) {
DPRINTF(("ulpt_open: open input pipe\n"));
err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe);
if (err) {
error = EIO;
usbd_close_pipe(sc->sc_out_pipe);
sc->sc_out_pipe = NULL;
sc->sc_state = 0;
goto done;
}
sc->sc_in_xfer1 = usbd_alloc_xfer(sc->sc_udev);
sc->sc_in_xfer2 = usbd_alloc_xfer(sc->sc_udev);
if (sc->sc_in_xfer1 == NULL || sc->sc_in_xfer2 == NULL) {
error = ENOMEM;
if (sc->sc_in_xfer1 != NULL) {
usbd_free_xfer(sc->sc_in_xfer1);
sc->sc_in_xfer1 = NULL;
}
if (sc->sc_in_xfer2 != NULL) {
usbd_free_xfer(sc->sc_in_xfer2);
sc->sc_in_xfer2 = NULL;
}
usbd_close_pipe(sc->sc_out_pipe);
sc->sc_out_pipe = NULL;
usbd_close_pipe(sc->sc_in_pipe);
sc->sc_in_pipe = NULL;
sc->sc_state = 0;
goto done;
}
usbd_setup_xfer(sc->sc_in_xfer1, sc->sc_in_pipe, sc,
sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
USBD_NO_TIMEOUT, ulpt_input);
usbd_setup_xfer(sc->sc_in_xfer2, sc->sc_in_pipe, sc,
sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
USBD_NO_TIMEOUT, ulpt_input);
usbd_transfer(sc->sc_in_xfer1); /* ignore failed start */
}
sc->sc_state = ULPT_OPEN;
done:
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(&sc->sc_dev);
DPRINTF(("ulptopen: done, error=%d\n", error));
return (error);
}
/*
* Reset the printer, then wait until it's selected and not busy.
*/
int
ulptopen(dev_t dev, int flag, int mode, struct proc *p)
{
u_char flags = ULPTFLAGS(dev);
struct ulpt_softc *sc;
usbd_status err;
int spin, error;
if (ULPTUNIT(dev) >= ulpt_cd.cd_ndevs)
return (ENXIO);
sc = ulpt_cd.cd_devs[ULPTUNIT(dev)];
if (sc == NULL)
return (ENXIO);
if (sc == NULL || sc->sc_iface == NULL || sc->sc_dying)
return (ENXIO);
if (sc->sc_state)
return (EBUSY);
sc->sc_state = ULPT_INIT;
sc->sc_flags = flags;
DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags));
error = 0;
sc->sc_refcnt++;
if ((flags & ULPT_NOPRIME) == 0)
ulpt_reset(sc);
for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) {
DPRINTF(("ulpt_open: waiting a while\n"));
if (spin >= TIMEOUT) {
error = EBUSY;
sc->sc_state = 0;
goto done;
}
/* wait 1/4 second, give up if we get a signal */
error = tsleep((caddr_t)sc, LPTPRI | PCATCH, "ulptop", STEP);
if (error != EWOULDBLOCK) {
sc->sc_state = 0;
goto done;
}
if (sc->sc_dying) {
error = ENXIO;
sc->sc_state = 0;
goto done;
}
}
err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe);
if (err) {
sc->sc_state = 0;
error = EIO;
goto done;
}
if (ulptusein && sc->sc_in != -1) {
DPRINTF(("ulpt_open: open input pipe\n"));
err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe);
if (err) {
error = EIO;
usbd_close_pipe(sc->sc_out_pipe);
sc->sc_out_pipe = NULL;
sc->sc_state = 0;
goto done;
}
sc->sc_in_xfer1 = usbd_alloc_xfer(sc->sc_udev);
sc->sc_in_xfer2 = usbd_alloc_xfer(sc->sc_udev);
if (sc->sc_in_xfer1 == NULL || sc->sc_in_xfer2 == NULL) {
error = ENOMEM;
if (sc->sc_in_xfer1 != NULL) {
usbd_free_xfer(sc->sc_in_xfer1);
sc->sc_in_xfer1 = NULL;
}
if (sc->sc_in_xfer2 != NULL) {
usbd_free_xfer(sc->sc_in_xfer2);
sc->sc_in_xfer2 = NULL;
}
usbd_close_pipe(sc->sc_out_pipe);
sc->sc_out_pipe = NULL;
usbd_close_pipe(sc->sc_in_pipe);
sc->sc_in_pipe = NULL;
sc->sc_state = 0;
goto done;
}
usbd_setup_xfer(sc->sc_in_xfer1, sc->sc_in_pipe, sc,
sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
USBD_NO_TIMEOUT, ulpt_input);
usbd_setup_xfer(sc->sc_in_xfer2, sc->sc_in_pipe, sc,
sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
USBD_NO_TIMEOUT, ulpt_input);
usbd_transfer(sc->sc_in_xfer1); /* ignore failed start */
}
sc->sc_state = ULPT_OPEN;
done:
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(&sc->sc_dev);
DPRINTF(("ulptopen: done, error=%d\n", error));
return (error);
}