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/* $OpenBSD: ehci_acpi.c,v 1.2 2022/04/06 18:59:27 naddy Exp $ */
/*
* Copyright (c) 2018 Mark Kettenis
*
* Permission to use, copy, modify, and 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/bus.h>
#include <machine/intr.h>
#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>
#include <dev/acpi/acpidev.h>
#include <dev/acpi/amltypes.h>
#include <dev/acpi/dsdt.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdivar.h>
#include <dev/usb/usb_mem.h>
#include <dev/usb/ehcireg.h>
#include <dev/usb/ehcivar.h>
struct ehci_acpi_softc {
struct ehci_softc sc;
struct acpi_softc *sc_acpi;
struct aml_node *sc_node;
void *sc_ih;
};
int ehci_acpi_match(struct device *, void *, void *);
void ehci_acpi_attach(struct device *, struct device *, void *);
const struct cfattach ehci_acpi_ca = {
sizeof(struct ehci_acpi_softc), ehci_acpi_match, ehci_acpi_attach
};
const char *ehci_hids[] = {
"PNP0D20",
NULL
};
int
ehci_acpi_match(struct device *parent, void *match, void *aux)
{
struct acpi_attach_args *aaa = aux;
struct cfdata *cf = match;
if (aaa->aaa_naddr < 1 || aaa->aaa_nirq < 1)
return 0;
return acpi_matchhids(aaa, ehci_hids, cf->cf_driver->cd_name);
}
void
ehci_acpi_attach(struct device *parent, struct device *self, void *aux)
{
struct ehci_acpi_softc *sc = (struct ehci_acpi_softc *)self;
struct acpi_attach_args *aaa = aux;
int error;
sc->sc_acpi = (struct acpi_softc *)parent;
sc->sc_node = aaa->aaa_node;
printf(" %s", sc->sc_node->name);
printf(" addr 0x%llx/0x%llx", aaa->aaa_addr[0], aaa->aaa_size[0]);
printf(" irq %d", aaa->aaa_irq[0]);
sc->sc.iot = aaa->aaa_bst[0];
sc->sc.sc_size = aaa->aaa_size[0];
sc->sc.sc_bus.dmatag = aaa->aaa_dmat;
if (bus_space_map(sc->sc.iot, aaa->aaa_addr[0], aaa->aaa_size[0],
0, &sc->sc.ioh)) {
printf(": can't map registers\n");
return;
}
/* Disable interrupts, so we don't get any spurious ones. */
sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH);
EOWRITE2(&sc->sc, EHCI_USBINTR, 0);
sc->sc_ih = acpi_intr_establish(aaa->aaa_irq[0], aaa->aaa_irq_flags[0],
IPL_USB, ehci_intr, sc, sc->sc.sc_bus.bdev.dv_xname);
if (sc->sc_ih == NULL) {
printf(": can't establish interrupt\n");
goto unmap;
}
printf("\n");
strlcpy(sc->sc.sc_vendor, "Generic", sizeof(sc->sc.sc_vendor));
error = ehci_init(&sc->sc);
if (error) {
printf("%s: init failed, error=%d\n",
sc->sc.sc_bus.bdev.dv_xname, error);
goto disestablish_ret;
}
/* Attach usb device. */
config_found(self, &sc->sc.sc_bus, usbctlprint);
return;
disestablish_ret:
acpi_intr_disestablish(sc->sc_ih);
unmap:
bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size);
return;
}
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