void *
aupci_intr_establish(void *v, pci_intr_handle_t ih, int ipl,
int (*handler)(void *), void *arg)
{
return (au_intr_establish(ih, 0, ipl, IST_LEVEL_LOW, handler, arg));
}
int
aucom_aubus_enable(struct com_softc *sc)
{
struct aucom_aubus_softc *asc = (void *)sc; /* XXX mi prototype */
/* Ignore requests to enable an already enabled console. */
if (ISSET(sc->sc_hwflags, COM_HW_CONSOLE) && (asc->sc_ih != NULL))
return (0);
/* Enable the UART module. */
bus_space_write_1(sc->sc_iot, sc->sc_ioh, UART_MODULE_CONTROL,
UMC_ME | UMC_CE);
/* Establish the interrupt. */
asc->sc_ih = au_intr_establish(asc->sc_irq, 0, IPL_SERIAL, IST_LEVEL,
aucomintr, sc);
if (asc->sc_ih == NULL) {
printf("%s: unable to establish interrupt\n",
sc->sc_dev.dv_xname);
return (1);
}
return (0);
}
void
ohci_aubus_attach(device_t parent, device_t self, void *aux)
{
ohci_softc_t *sc = device_private(self);
void *ih;
usbd_status r;
uint32_t x, tmp;
bus_addr_t usbh_base, usbh_enable;
struct aubus_attach_args *aa = aux;
r = 0;
usbh_base = aa->aa_addrs[0];
usbh_enable = aa->aa_addrs[1];
sc->sc_size = aa->aa_addrs[2];
sc->iot = aa->aa_st;
sc->sc_bus.dmatag = (bus_dma_tag_t)aa->aa_dt;
sc->sc_dev = self;
sc->sc_bus.hci_private = sc;
if (bus_space_map(sc->iot, usbh_base, sc->sc_size, 0, &sc->ioh)) {
aprint_error_dev(self, "unable to map USBH registers\n");
return;
}
/*
* Enable the USB Host controller here.
* As per 7.2 in the Au1500 manual:
*
* (1) Set CE bit to enable clocks.
* (2) Set E to enable OHCI
* (3) Clear HCFS in OHCI_CONTROL.
* (4) Wait for RD bit to be set.
*/
x = bus_space_read_4(sc->iot, sc->ioh, usbh_enable);
x |= UE_CE;
bus_space_write_4(sc->iot, sc->ioh, usbh_enable, x);
delay(10);
x |= UE_E;
#ifdef __MIPSEB__
x |= UE_BE;
#endif
bus_space_write_4(sc->iot, sc->ioh, usbh_enable, x);
delay(10);
x = bus_space_read_4(sc->iot, sc->ioh, OHCI_CONTROL);
x &= ~(OHCI_HCFS_MASK);
bus_space_write_4(sc->iot, sc->ioh, OHCI_CONTROL, x);
delay(10);
/* Need to read USBH_ENABLE twice in succession according to
* au1500 Errata #7.
*/
for (x = 100; x; x--) {
bus_space_read_4(sc->iot, sc->ioh, usbh_enable);
tmp = bus_space_read_4(sc->iot, sc->ioh, usbh_enable);
if (tmp&UE_RD)
break;
delay(1000);
}
printf(": Alchemy OHCI\n");
/* Disable OHCI interrupts */
bus_space_write_4(sc->iot, sc->ioh, OHCI_INTERRUPT_DISABLE,
OHCI_ALL_INTRS);
/* hook interrupt */
ih = au_intr_establish(aa->aa_irq[0], 0, IPL_USB, IST_LEVEL_LOW,
ohci_intr, sc);
if (ih == NULL) {
aprint_error_dev(self,"couldn't establish interrupt\n");
}
sc->sc_endian = OHCI_HOST_ENDIAN;
if (x)
r = ohci_init(sc);
if (r != USBD_NORMAL_COMPLETION) {
aprint_error_dev(self, "init failed, error=%d\n", r);
au_intr_disestablish(ih);
return;
}
/* Attach USB device */
sc->sc_child = config_found(self, &sc->sc_bus, usbctlprint);
}
void
ohci_aubus_attach(struct device *parent, struct device *self, void *aux)
{
ohci_softc_t *sc = (ohci_softc_t *)self;
void *ih;
usbd_status r;
uint32_t x, tmp;
struct aubus_attach_args *aa = aux;
r = 0;
sc->sc_size = USBH_SIZE;
sc->iot = aa->aa_st;
sc->sc_bus.dmatag = (bus_dma_tag_t)aa->aa_dt;
if (bus_space_map(sc->iot, USBH_BASE, USBH_SIZE, 0, &sc->ioh)) {
printf("%s: Unable to map USBH registers\n",
sc->sc_bus.bdev.dv_xname);
return;
}
/*
* Enable the USB Host controller here.
* As per 7.2 in the Au1500 manual:
*
* (1) Set CE bit to enable clocks.
* (2) Set E to enable OHCI
* (3) Clear HCFS in OHCI_CONTROL.
* (4) Wait for RD bit to be set.
*/
x = bus_space_read_4(sc->iot, sc->ioh, USBH_ENABLE);
x |= UE_CE;
bus_space_write_4(sc->iot, sc->ioh, USBH_ENABLE, x);
delay(10);
x |= UE_E;
#ifdef __MIPSEB__
x |= UE_BE;
#endif
bus_space_write_4(sc->iot, sc->ioh, USBH_ENABLE, x);
delay(10);
x = bus_space_read_4(sc->iot, sc->ioh, OHCI_CONTROL);
x &= ~(OHCI_HCFS_MASK);
bus_space_write_4(sc->iot, sc->ioh, OHCI_CONTROL, x);
delay(10);
/* Need to read USBH_ENABLE twice in succession according to
* au1500 Errata #7.
*/
for (x = 100; x; x--) {
bus_space_read_4(sc->iot, sc->ioh, USBH_ENABLE);
tmp = bus_space_read_4(sc->iot, sc->ioh, USBH_ENABLE);
if (tmp&UE_RD)
break;
delay(1000);
}
printf(": Au1X00 OHCI\n");
/* Disable OHCI interrupts */
bus_space_write_4(sc->iot, sc->ioh, OHCI_INTERRUPT_DISABLE,
OHCI_ALL_INTRS);
/* hook interrupt */
ih = au_intr_establish(aa->aa_irq[0], 0, IPL_USB, IST_LEVEL_LOW,
ohci_intr, sc);
if (ih == NULL) {
printf("%s: couldn't establish interrupt\n",
sc->sc_bus.bdev.dv_xname);
}
if (x)
r = ohci_init(sc);
if (r != USBD_NORMAL_COMPLETION) {
printf("%s: init failed, error=%d\n",
sc->sc_bus.bdev.dv_xname, r);
au_intr_disestablish(ih);
return;
}
/* Attach USB device */
sc->sc_child = config_found((void *)sc, &sc->sc_bus, usbctlprint);
}