svn commit: r240280 - head/sys/arm/broadcom/bcm2835
Hans Petter Selasky
hselasky at FreeBSD.org
Sun Sep 9 14:51:38 UTC 2012
Author: hselasky
Date: Sun Sep 9 14:51:38 2012
New Revision: 240280
URL: http://svn.freebsd.org/changeset/base/240280
Log:
Add support for DWC OTG.
Added:
head/sys/arm/broadcom/bcm2835/dwc_otg_brcm.c (contents, props changed)
Added: head/sys/arm/broadcom/bcm2835/dwc_otg_brcm.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/arm/broadcom/bcm2835/dwc_otg_brcm.c Sun Sep 9 14:51:38 2012 (r240280)
@@ -0,0 +1,211 @@
+/*-
+ * Copyright (c) 2012 Hans Petter Selasky. All rights reserved.
+ *
+ * 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 AUTHOR 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 AUTHOR 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>
+__FBSDID("$FreeBSD$");
+
+#include <sys/stdint.h>
+#include <sys/stddef.h>
+#include <sys/param.h>
+#include <sys/queue.h>
+#include <sys/types.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/bus.h>
+#include <sys/module.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/condvar.h>
+#include <sys/sysctl.h>
+#include <sys/sx.h>
+#include <sys/unistd.h>
+#include <sys/callout.h>
+#include <sys/malloc.h>
+#include <sys/priv.h>
+#include <sys/rman.h>
+
+#include <dev/fdt/fdt_common.h>
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+
+#include <dev/usb/usb_core.h>
+#include <dev/usb/usb_busdma.h>
+#include <dev/usb/usb_process.h>
+#include <dev/usb/usb_util.h>
+
+#include <dev/usb/usb_controller.h>
+#include <dev/usb/usb_bus.h>
+
+#include <dev/usb/controller/dwc_otg.h>
+
+static device_probe_t dwc_otg_probe;
+static device_attach_t dwc_otg_attach;
+static device_detach_t dwc_otg_detach;
+
+struct dwc_otg_super_softc {
+ struct dwc_otg_softc sc_otg; /* must be first */
+};
+
+static int
+dwc_otg_probe(device_t dev)
+{
+ if (!ofw_bus_is_compatible(dev, "synopsys,designware-hs-otg2"))
+ return (ENXIO);
+
+ device_set_desc(dev, "DWC OTG 2.0 integrated USB controller");
+
+ return (0);
+}
+
+static int
+dwc_otg_attach(device_t dev)
+{
+ struct dwc_otg_super_softc *sc = device_get_softc(dev);
+ int err;
+ int rid;
+
+ /* initialise some bus fields */
+ sc->sc_otg.sc_bus.parent = dev;
+ sc->sc_otg.sc_bus.devices = sc->sc_otg.sc_devices;
+ sc->sc_otg.sc_bus.devices_max = DWC_OTG_MAX_DEVICES;
+
+ /* get all DMA memory */
+ if (usb_bus_mem_alloc_all(&sc->sc_otg.sc_bus,
+ USB_GET_DMA_TAG(dev), NULL)) {
+ return (ENOMEM);
+ }
+ rid = 0;
+ sc->sc_otg.sc_io_res =
+ bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
+
+ if (!(sc->sc_otg.sc_io_res)) {
+ err = ENOMEM;
+ goto error;
+ }
+ sc->sc_otg.sc_io_tag = rman_get_bustag(sc->sc_otg.sc_io_res);
+ sc->sc_otg.sc_io_hdl = rman_get_bushandle(sc->sc_otg.sc_io_res);
+ sc->sc_otg.sc_io_size = rman_get_size(sc->sc_otg.sc_io_res);
+
+ rid = 0;
+ sc->sc_otg.sc_irq_res =
+ bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
+ if (sc->sc_otg.sc_irq_res == NULL)
+ goto error;
+
+ sc->sc_otg.sc_bus.bdev = device_add_child(dev, "usbus", -1);
+ if (sc->sc_otg.sc_bus.bdev == NULL)
+ goto error;
+
+ device_set_ivars(sc->sc_otg.sc_bus.bdev, &sc->sc_otg.sc_bus);
+
+ err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
+ NULL, (driver_intr_t *)dwc_otg_interrupt, sc, &sc->sc_otg.sc_intr_hdl);
+ if (err) {
+ sc->sc_otg.sc_intr_hdl = NULL;
+ goto error;
+ }
+ err = dwc_otg_init(&sc->sc_otg);
+ if (err == 0) {
+ err = device_probe_and_attach(sc->sc_otg.sc_bus.bdev);
+ }
+ if (err)
+ goto error;
+
+
+ return (0);
+
+error:
+ dwc_otg_detach(dev);
+ return (ENXIO);
+}
+
+static int
+dwc_otg_detach(device_t dev)
+{
+ struct dwc_otg_super_softc *sc = device_get_softc(dev);
+ device_t bdev;
+ int err;
+
+ if (sc->sc_otg.sc_bus.bdev) {
+ bdev = sc->sc_otg.sc_bus.bdev;
+ device_detach(bdev);
+ device_delete_child(dev, bdev);
+ }
+ /* during module unload there are lots of children leftover */
+ device_delete_children(dev);
+
+ if (sc->sc_otg.sc_irq_res && sc->sc_otg.sc_intr_hdl) {
+ /*
+ * only call dwc_otg_uninit() after dwc_otg_init()
+ */
+ dwc_otg_uninit(&sc->sc_otg);
+
+ err = bus_teardown_intr(dev, sc->sc_otg.sc_irq_res,
+ sc->sc_otg.sc_intr_hdl);
+ sc->sc_otg.sc_intr_hdl = NULL;
+ }
+ /* free IRQ channel, if any */
+ if (sc->sc_otg.sc_irq_res) {
+ bus_release_resource(dev, SYS_RES_IRQ, 0,
+ sc->sc_otg.sc_irq_res);
+ sc->sc_otg.sc_irq_res = NULL;
+ }
+ /* free memory resource, if any */
+ if (sc->sc_otg.sc_io_res) {
+ bus_release_resource(dev, SYS_RES_MEMORY, 0,
+ sc->sc_otg.sc_io_res);
+ sc->sc_otg.sc_io_res = NULL;
+ }
+ usb_bus_mem_free_all(&sc->sc_otg.sc_bus, NULL);
+
+ return (0);
+}
+
+static device_method_t dwc_otg_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, dwc_otg_probe),
+ DEVMETHOD(device_attach, dwc_otg_attach),
+ DEVMETHOD(device_detach, dwc_otg_detach),
+ DEVMETHOD(device_suspend, bus_generic_suspend),
+ DEVMETHOD(device_resume, bus_generic_resume),
+ DEVMETHOD(device_shutdown, bus_generic_shutdown),
+
+ DEVMETHOD_END
+};
+
+static driver_t dwc_otg_driver = {
+ .name = "dwcotg",
+ .methods = dwc_otg_methods,
+ .size = sizeof(struct dwc_otg_super_softc),
+};
+
+static devclass_t dwc_otg_devclass;
+
+DRIVER_MODULE(dwcotg, simplebus, dwc_otg_driver, dwc_otg_devclass, 0, 0);
+MODULE_DEPEND(dwcotg, usb, 1, 1, 1);
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