Ejemplos de usb_fifo_get_data_error en C++ (Cpp)

Ejemplo n.º 1

static void
uhid_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
	struct uhid_softc *sc = usbd_xfer_softc(xfer);
	struct usb_device_request req;
	struct usb_page_cache *pc;
	uint32_t size = sc->sc_osize;
	uint32_t actlen;
	uint8_t id;

	switch (USB_GET_STATE(xfer)) {
	case USB_ST_TRANSFERRED:
	case USB_ST_SETUP:
		/* try to extract the ID byte */
		if (sc->sc_oid) {
			pc = usbd_xfer_get_frame(xfer, 0);
			if (usb_fifo_get_data(sc->sc_fifo.fp[USB_FIFO_TX], pc,
			    0, 1, &actlen, 0)) {
				if (actlen != 1) {
					goto tr_error;
				}
				usbd_copy_out(pc, 0, &id, 1);

			} else {
				return;
			}
			if (size) {
				size--;
			}
		} else {
			id = 0;
		}

		pc = usbd_xfer_get_frame(xfer, 1);
		if (usb_fifo_get_data(sc->sc_fifo.fp[USB_FIFO_TX], pc,
		    0, UHID_BSIZE, &actlen, 1)) {
			if (actlen != size) {
				goto tr_error;
			}
			uhid_fill_set_report
			    (&req, sc->sc_iface_no,
			    UHID_OUTPUT_REPORT, id, size);

			pc = usbd_xfer_get_frame(xfer, 0);
			usbd_copy_in(pc, 0, &req, sizeof(req));

			usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
			usbd_xfer_set_frame_len(xfer, 1, size);
			usbd_xfer_set_frames(xfer, size ? 2 : 1);
			usbd_transfer_submit(xfer);
		}
		return;

	default:
tr_error:
		/* bomb out */
		usb_fifo_get_data_error(sc->sc_fifo.fp[USB_FIFO_TX]);
		return;
	}
}

Ejemplo n.º 2

Archivo: usb_generic.c Proyecto: DangerDexter/FreeBSD-8.0-dyntick

static void
ugen_start_write(struct usb_fifo *f)
{
	/* check that pipes are open */
	if (ugen_open_pipe_write(f)) {
		/* signal error */
		usb_fifo_get_data_error(f);
	}
	/* start transfers */
	usbd_transfer_start(f->xfer[0]);
	usbd_transfer_start(f->xfer[1]);
}