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/* $OpenBSD: ohci_acpi.c,v 1.1 2021/12/29 18:40:19 patrick 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/ohcireg.h>
#include <dev/usb/ohcivar.h>
struct ohci_acpi_softc {
struct ohci_softc sc;
struct acpi_softc *sc_acpi;
struct aml_node *sc_node;
void *sc_ih;
};
int ohci_acpi_match(struct device *, void *, void *);
void ohci_acpi_attach(struct device *, struct device *, void *);
struct cfattach ohci_acpi_ca = {
sizeof(struct ohci_acpi_softc), ohci_acpi_match, ohci_acpi_attach
};
void ohci_acpi_attach_deferred(struct device *);
int
ohci_acpi_match(struct device *parent, void *match, void *aux)
{
struct acpi_attach_args *aaa = aux;
return acpi_matchcls(aaa, PCI_CLASS_SERIALBUS,
PCI_SUBCLASS_SERIALBUS_USB, PCI_INTERFACE_OHCI);
}
void
ohci_acpi_attach(struct device *parent, struct device *self, void *aux)
{
struct ohci_acpi_softc *sc = (struct ohci_acpi_softc *)self;
struct acpi_attach_args *aaa = aux;
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;
}
/* Record what interrupts were enabled by SMM/BIOS. */
sc->sc.sc_intre = bus_space_read_4(sc->sc.iot, sc->sc.ioh,
OHCI_INTERRUPT_ENABLE);
/* Disable interrupts, so we don't get any spurious ones. */
bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE,
OHCI_MIE);
bus_space_barrier(sc->sc.iot, sc->sc.ioh, 0, sc->sc.sc_size,
BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE);
bus_space_write_4(sc->sc.iot, sc->sc.ioh,
OHCI_INTERRUPT_DISABLE, OHCI_MIE);
/* Map and establish the interrupt. */
sc->sc_ih = acpi_intr_establish(aaa->aaa_irq[0], aaa->aaa_irq_flags[0],
IPL_USB, ohci_intr, sc, sc->sc.sc_bus.bdev.dv_xname);
if (sc->sc_ih == NULL) {
printf(": can't establish interrupt\n");
goto unmap;
}
printf(": ");
strlcpy(sc->sc.sc_vendor, "Generic", sizeof(sc->sc.sc_vendor));
/* Display revision and perform legacy emulation handover. */
if (ohci_checkrev(&sc->sc) != USBD_NORMAL_COMPLETION ||
ohci_handover(&sc->sc) != USBD_NORMAL_COMPLETION)
goto disestablish_ret;
/* Ignore interrupts for now */
sc->sc.sc_bus.dying = 1;
config_defer(self, ohci_acpi_attach_deferred);
return;
disestablish_ret:
acpi_intr_disestablish(sc->sc_ih);
unmap:
bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size);
return;
}
void
ohci_acpi_attach_deferred(struct device *self)
{
struct ohci_acpi_softc *sc = (struct ohci_acpi_softc *)self;
usbd_status r;
int s;
s = splusb();
sc->sc.sc_bus.dying = 0;
r = ohci_init(&sc->sc);
splx(s);
if (r != USBD_NORMAL_COMPLETION) {
printf("%s: init failed, error=%d\n",
sc->sc.sc_bus.bdev.dv_xname, r);
acpi_intr_disestablish(sc->sc_ih);
sc->sc_ih = NULL;
bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size);
sc->sc.sc_size = 0;
return;
}
/* Attach usb device. */
config_found(self, &sc->sc.sc_bus, usbctlprint);
}
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