/* $NetBSD: ohci_acpi.c,v 1.2 2021/12/26 14:35:03 jmcneill Exp $ */

/* $NetBSD: ohci_acpi.c,v 1.2 2021/12/26 14:35:03 jmcneill Exp $ */

/*-
* Copyright (c) 2021 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jared McNeill <[email protected]>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ohci_acpi.c,v 1.2 2021/12/26 14:35:03 jmcneill Exp $");

#include <sys/param.h>
#include <sys/bus.h>
#include <sys/cpu.h>
#include <sys/device.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>

#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>
#include <dev/acpi/acpi_intr.h>
#include <dev/acpi/acpi_usb.h>

#include <dev/pci/pcireg.h>

static int ohci_acpi_match(device_t, cfdata_t, void *);
static void ohci_acpi_attach(device_t, device_t, void *);

CFATTACH_DECL2_NEW(ohci_acpi, sizeof(struct ohci_softc),
ohci_acpi_match, ohci_acpi_attach, NULL,
ohci_activate, NULL, ohci_childdet);

static const struct device_compatible_entry compat_data[] = {
{ .compat = "generic-ohci" }, /* DT link */
DEVICE_COMPAT_EOL
};

static int
ohci_acpi_match(device_t parent, cfdata_t cf, void *aux)
{
struct acpi_attach_args *aa = aux;
int match;

if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) {
return 0;
}

match = acpi_compatible_match(aa, compat_data);
if (!match) {
match = acpi_match_class(aa->aa_node->ad_handle,
PCI_CLASS_SERIALBUS,
PCI_SUBCLASS_SERIALBUS_USB,
PCI_INTERFACE_OHCI);
}

return match;
}

static void
ohci_acpi_attach(device_t parent, device_t self, void *aux)
{
struct ohci_softc * const sc = device_private(self);
struct acpi_attach_args *aa = aux;
struct acpi_resources res;
struct acpi_mem *mem;
struct acpi_irq *irq;
ACPI_STATUS rv;
int error;
void *ih;

sc->sc_dev = self;
sc->sc_bus.ub_hcpriv = sc;
sc->sc_bus.ub_dmatag = aa->aa_dmat;
sc->sc_bus.ub_revision = USBREV_1_0;

rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS",
&res, &acpi_resource_parse_ops_default);
if (ACPI_FAILURE(rv)) {
return;
}

mem = acpi_res_mem(&res, 0);
if (mem == NULL) {
aprint_error_dev(self, "couldn't find mem resource\n");
goto done;
}

irq = acpi_res_irq(&res, 0);
if (irq == NULL) {
aprint_error_dev(self, "couldn't find irq resource\n");
goto done;
}

sc->sc_size = mem->ar_length;
sc->iot = aa->aa_memt;
error = bus_space_map(sc->iot, mem->ar_base, mem->ar_length, 0, &sc->ioh);
if (error) {
aprint_error_dev(self, "couldn't map registers\n");
goto done;
}

/* Disable interrupts */
bus_space_write_4(sc->iot, sc->ioh, OHCI_INTERRUPT_DISABLE,
OHCI_ALL_INTRS);

ih = acpi_intr_establish(self,
(uint64_t)(uintptr_t)aa->aa_node->ad_handle,
IPL_USB, true, ohci_intr, sc, device_xname(self));
if (ih == NULL) {
aprint_error_dev(self, "couldn't establish interrupt\n");
goto done;
}

error = ohci_init(sc);
if (error) {
aprint_error_dev(self, "init failed, error = %d\n", error);
acpi_intr_disestablish(ih);
goto done;
}

sc->sc_child = config_found(self, &sc->sc_bus, usbctlprint, CFARGS_NONE);

done:
acpi_resource_cleanup(&res);
}