static int
at91_udp_detach(device_t dev)
{
struct at91_udp_softc *sc = device_get_softc(dev);
device_t bdev;
int err;
if (sc->sc_dci.sc_bus.bdev) {
bdev = sc->sc_dci.sc_bus.bdev;
device_detach(bdev);
device_delete_child(dev, bdev);
}
/* during module unload there are lots of children leftover */
device_delete_children(dev);
USB_BUS_LOCK(&sc->sc_dci.sc_bus);
callout_stop(&sc->sc_vbus);
USB_BUS_UNLOCK(&sc->sc_dci.sc_bus);
callout_drain(&sc->sc_vbus);
/* disable Transceiver */
AT91_UDP_WRITE_4(&sc->sc_dci, AT91_UDP_TXVC, AT91_UDP_TXVC_DIS);
/* disable and clear all interrupts */
AT91_UDP_WRITE_4(&sc->sc_dci, AT91_UDP_IDR, 0xFFFFFFFF);
AT91_UDP_WRITE_4(&sc->sc_dci, AT91_UDP_ICR, 0xFFFFFFFF);
if (sc->sc_dci.sc_irq_res && sc->sc_dci.sc_intr_hdl) {
/*
* only call at91_udp_uninit() after at91_udp_init()
*/
at91dci_uninit(&sc->sc_dci);
err = bus_teardown_intr(dev, sc->sc_dci.sc_irq_res,
sc->sc_dci.sc_intr_hdl);
sc->sc_dci.sc_intr_hdl = NULL;
}
if (sc->sc_dci.sc_irq_res) {
bus_release_resource(dev, SYS_RES_IRQ, 0,
sc->sc_dci.sc_irq_res);
sc->sc_dci.sc_irq_res = NULL;
}
if (sc->sc_dci.sc_io_res) {
bus_release_resource(dev, SYS_RES_MEMORY, MEM_RID,
sc->sc_dci.sc_io_res);
sc->sc_dci.sc_io_res = NULL;
}
usb_bus_mem_free_all(&sc->sc_dci.sc_bus, NULL);
/* disable clocks */
at91_pmc_clock_disable(sc->sc_iclk);
at91_pmc_clock_disable(sc->sc_fclk);
at91_pmc_clock_disable(sc->sc_mclk);
at91_pmc_clock_deref(sc->sc_fclk);
at91_pmc_clock_deref(sc->sc_iclk);
at91_pmc_clock_deref(sc->sc_mclk);
return (0);
}
static int
at91_udp_shutdown(device_t dev)
{
struct at91_udp_softc *sc = device_get_softc(dev);
int err;
err = bus_generic_shutdown(dev);
if (err)
return (err);
at91dci_uninit(&sc->sc_dci);
return (0);
}
