Allow ohci(4) and ehci(4) to attach to acpi(4).

ok kettenis@

1 files changed, 154 insertions, 0 deletions

diff --git a/sys/dev/acpi/ohci_acpi.c b/sys/dev/acpi/ohci_acpi.c
new file mode 100644
index 00000000000..64946eeecea
--- /dev/null
+++ b/sys/dev/acpi/ohci_acpi.c
@@ -0,0 +1,154 @@
+/*	$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);
+}