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/* $OpenBSD: octohci.c,v 1.4 2019/01/07 03:41:06 dlg Exp $ */
/*
* Copyright (c) 2015 Jonathan Matthew <jmatthew@openbsd.org>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/intr.h>
#include <machine/bus.h>
#include <machine/octeonreg.h>
#include <machine/octeonvar.h>
#include <octeon/dev/octuctlreg.h>
#include <octeon/dev/octuctlvar.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdivar.h>
#include <dev/usb/ohcireg.h>
#include <dev/usb/ohcivar.h>
struct octohci_softc {
struct ohci_softc sc_ohci;
void *sc_ih;
uint64_t sc_reg_size;
};
int octohci_match(struct device *, void *, void *);
void octohci_attach(struct device *, struct device *, void *);
void octohci_attach_deferred(struct device *);
const struct cfattach octohci_ca = {
sizeof(struct octohci_softc), octohci_match, octohci_attach,
};
struct cfdriver octohci_cd = {
NULL, "ohci", DV_DULL
};
int
octohci_match(struct device *parent, void *match, void *aux)
{
struct octuctl_attach_args *aa = aux;
return (OF_is_compatible(aa->aa_node, "cavium,octeon-6335-ohci"));
}
void
octohci_attach(struct device *parent, struct device *self, void *aux)
{
struct octohci_softc *sc = (struct octohci_softc *)self;
struct octuctl_attach_args *aa = aux;
uint64_t port_ctl;
int rc;
int s;
sc->sc_ohci.iot = aa->aa_bust;
sc->sc_ohci.sc_bus.pipe_size = sizeof(struct usbd_pipe);
sc->sc_ohci.sc_bus.dmatag = aa->aa_dmat;
rc = bus_space_map(sc->sc_ohci.iot, aa->aa_reg.addr, aa->aa_reg.size,
0, &sc->sc_ohci.ioh);
KASSERT(rc == 0);
sc->sc_reg_size = aa->aa_reg.size;
port_ctl = bus_space_read_8(aa->aa_octuctl_bust, aa->aa_ioh,
UCTL_OHCI_CTL);
port_ctl &= ~UCTL_OHCI_CTL_L2C_ADDR_MSB_MASK;
port_ctl |= (1 << UCTL_OHCI_CTL_L2C_DESC_EMOD_SHIFT);
port_ctl |= (1 << UCTL_OHCI_CTL_L2C_BUFF_EMOD_SHIFT);
bus_space_write_8(aa->aa_octuctl_bust, aa->aa_ioh, UCTL_OHCI_CTL,
port_ctl);
s = splusb();
sc->sc_ohci.sc_id_vendor = 0;
strlcpy(sc->sc_ohci.sc_vendor, "Octeon", sizeof(sc->sc_ohci.sc_vendor));
sc->sc_ih = octeon_intr_establish(CIU_INT_USB, IPL_USB, ohci_intr,
(void *)&sc->sc_ohci, sc->sc_ohci.sc_bus.bdev.dv_xname);
KASSERT(sc->sc_ih != NULL);
printf(", ");
if ((ohci_checkrev(&sc->sc_ohci) != USBD_NORMAL_COMPLETION) ||
(ohci_handover(&sc->sc_ohci) != USBD_NORMAL_COMPLETION))
goto failed;
/* ignore interrupts for now */
sc->sc_ohci.sc_bus.dying = 1;
config_defer(self, octohci_attach_deferred);
splx(s);
return;
failed:
octeon_intr_disestablish(sc->sc_ih);
bus_space_unmap(sc->sc_ohci.iot, sc->sc_ohci.ioh, sc->sc_reg_size);
splx(s);
return;
}
void
octohci_attach_deferred(struct device *self)
{
struct octohci_softc *sc = (struct octohci_softc *)self;
usbd_status r;
int s;
s = splusb();
sc->sc_ohci.sc_bus.dying = 0;
r = ohci_init(&sc->sc_ohci);
splx(s);
if (r != USBD_NORMAL_COMPLETION) {
printf("%s: init failed, error=%d\n",
sc->sc_ohci.sc_bus.bdev.dv_xname, r);
octeon_intr_disestablish(sc->sc_ih);
bus_space_unmap(sc->sc_ohci.iot, sc->sc_ohci.ioh,
sc->sc_reg_size);
} else {
config_found(self, &sc->sc_ohci.sc_bus, usbctlprint);
}
}
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