Glue to attach xhci(4) using the device tree.

2 files changed, 105 insertions, 1 deletions

diff --git a/sys/dev/fdt/files.fdt b/sys/dev/fdt/files.fdt
index 84ffad2a240..59da90218dc 100644
--- a/sys/dev/fdt/files.fdt
+++ b/sys/dev/fdt/files.fdt
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.fdt,v 1.6 2017/02/22 23:01:15 patrick Exp $
+#	$OpenBSD: files.fdt,v 1.7 2017/03/09 19:26:39 kettenis Exp $
 #
 # Config file and device description for machine-independent FDT code.
 # Included by ports that need it.
@@ -46,3 +46,6 @@ file	dev/fdt/virtio_mmio.c		virtio_mmio
 # Advanced Host Controller Interface for Serial ATA
 attach	ahci at fdt with ahci_fdt
 file	dev/fdt/ahci_fdt.c		ahci_fdt
+
+attach	xhci at fdt with xhci_fdt
+file	dev/fdt/xhci_fdt.c		xhci_fdt
diff --git a/sys/dev/fdt/xhci_fdt.c b/sys/dev/fdt/xhci_fdt.c
new file mode 100644
index 00000000000..a9f9dbd181b
--- /dev/null
+++ b/sys/dev/fdt/xhci_fdt.c
@@ -0,0 +1,101 @@
+/*	$OpenBSD: xhci_fdt.c,v 1.1 2017/03/09 19:26:39 kettenis Exp $	*/
+/*
+ * Copyright (c) 2017 Mark kettenis <kettenis@openbsd.org>
+ *
+ * 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/fdt.h>
+
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/fdt.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/xhcireg.h>
+#include <dev/usb/xhcivar.h>
+
+struct xhci_fdt_softc {
+	struct xhci_softc	sc;
+	void			*sc_ih;
+};
+
+int	xhci_fdt_match(struct device *, void *, void *);
+void	xhci_fdt_attach(struct device *, struct device *, void *);
+
+struct cfattach xhci_fdt_ca = {
+	sizeof(struct xhci_fdt_softc), xhci_fdt_match, xhci_fdt_attach
+};
+
+int
+xhci_fdt_match(struct device *parent, void *match, void *aux)
+{
+	struct fdt_attach_args *faa = aux;
+
+	return OF_is_compatible(faa->fa_node, "snps,dwc3");
+}
+
+void
+xhci_fdt_attach(struct device *parent, struct device *self, void *aux)
+{
+	struct xhci_fdt_softc *sc = (struct xhci_fdt_softc *)self;
+	struct fdt_attach_args *faa = aux;
+	int error;
+
+	if (faa->fa_nreg < 1)
+		return;
+
+	sc->sc.iot = faa->fa_iot;
+	sc->sc.sc_size = faa->fa_reg[0].size;
+	sc->sc.sc_bus.dmatag = faa->fa_dmat;
+
+	if (bus_space_map(sc->sc.iot, faa->fa_reg[0].addr,
+	    faa->fa_reg[0].size, 0, &sc->sc.ioh))
+		panic("%s: bus_space_map failed!", __func__);
+
+	sc->sc_ih = arm_intr_establish_fdt(faa->fa_node, IPL_USB,
+	    xhci_intr, sc, sc->sc.sc_bus.bdev.dv_xname);
+	if (sc->sc_ih == NULL) {
+		printf(": can't establish interrupt\n");
+		goto unmap;
+	}
+
+	printf("\n");
+
+	if ((error = xhci_init(&sc->sc)) != 0) {
+		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);
+
+	/* Now that the stack is ready, config' the HC and enable interrupts. */
+	xhci_config(&sc->sc);
+
+	return;
+
+disestablish_ret:
+	arm_intr_disestablish_fdt(sc->sc_ih);
+unmap:
+	bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size);
+}