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 void at91_udp_clocks_off(void *arg) { struct at91_udp_softc *sc = arg; at91_pmc_clock_disable(sc->sc_fclk); at91_pmc_clock_disable(sc->sc_iclk); }
static int ohci_atmelarm_detach(device_t dev) { struct at91_ohci_softc *sc = device_get_softc(dev); device_t bdev; int err; if (sc->sc_ohci.sc_bus.bdev) { bdev = sc->sc_ohci.sc_bus.bdev; device_detach(bdev); device_delete_child(dev, bdev); } /* during module unload there are lots of children leftover */ device_delete_children(dev); /* * Put the controller into reset, then disable clocks and do * the MI tear down. We have to disable the clocks/hardware * after we do the rest of the teardown. We also disable the * clocks in the opposite order we acquire them, but that * doesn't seem to be absolutely necessary. We free up the * clocks after we disable them, so the system could, in * theory, reuse them. */ bus_space_write_4(sc->sc_ohci.sc_io_tag, sc->sc_ohci.sc_io_hdl, OHCI_CONTROL, 0); at91_pmc_clock_disable(sc->fclk); at91_pmc_clock_disable(sc->iclk); at91_pmc_clock_disable(sc->mclk); at91_pmc_clock_deref(sc->fclk); at91_pmc_clock_deref(sc->iclk); at91_pmc_clock_deref(sc->mclk); if (sc->sc_ohci.sc_irq_res && sc->sc_ohci.sc_intr_hdl) { /* * only call ohci_detach() after ohci_init() */ ohci_detach(&sc->sc_ohci); err = bus_teardown_intr(dev, sc->sc_ohci.sc_irq_res, sc->sc_ohci.sc_intr_hdl); sc->sc_ohci.sc_intr_hdl = NULL; } if (sc->sc_ohci.sc_irq_res) { bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_ohci.sc_irq_res); sc->sc_ohci.sc_irq_res = NULL; } if (sc->sc_ohci.sc_io_res) { bus_release_resource(dev, SYS_RES_MEMORY, MEM_RID, sc->sc_ohci.sc_io_res); sc->sc_ohci.sc_io_res = NULL; } usb_bus_mem_free_all(&sc->sc_ohci.sc_bus, &ohci_iterate_hw_softc); return (0); }