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-rw-r--r--sys/arm/econa/ohci_ec.c241
1 files changed, 241 insertions, 0 deletions
diff --git a/sys/arm/econa/ohci_ec.c b/sys/arm/econa/ohci_ec.c
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index 0000000..6bff376
--- /dev/null
+++ b/sys/arm/econa/ohci_ec.c
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+/*-
+ * Copyright (c) 2009 Yohanes Nugroho <yohanes@gmail.com>
+ * 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 ``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 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/linker_set.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 <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/ohci.h>
+#include <dev/usb/controller/ohcireg.h>
+
+#include <sys/rman.h>
+
+#include <arm/econa/econa_reg.h>
+
+#define MEM_RID 0
+
+static device_probe_t ohci_ec_probe;
+static device_attach_t ohci_ec_attach;
+static device_detach_t ohci_ec_detach;
+
+struct ec_ohci_softc {
+ struct ohci_softc sc_ohci; /* must be first */
+};
+
+static int
+ohci_ec_probe(device_t dev)
+{
+ device_set_desc(dev, "Econa integrated OHCI controller");
+ return (BUS_PROBE_DEFAULT);
+}
+
+static int
+ohci_ec_attach(device_t dev)
+{
+ struct ec_ohci_softc *sc = device_get_softc(dev);
+ bus_space_handle_t bsh;
+ int err;
+ int rid;
+
+ /* initialise some bus fields */
+ sc->sc_ohci.sc_bus.parent = dev;
+ sc->sc_ohci.sc_bus.devices = sc->sc_ohci.sc_devices;
+ sc->sc_ohci.sc_bus.devices_max = OHCI_MAX_DEVICES;
+
+ /* get all DMA memory */
+ if (usb_bus_mem_alloc_all(&sc->sc_ohci.sc_bus,
+ USB_GET_DMA_TAG(dev), &ohci_iterate_hw_softc)) {
+ return (ENOMEM);
+ }
+ sc->sc_ohci.sc_dev = dev;
+
+ rid = MEM_RID;
+
+ sc->sc_ohci.sc_io_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
+ &rid, RF_ACTIVE);
+
+ if (!(sc->sc_ohci.sc_io_res)) {
+ err = ENOMEM;
+ goto error;
+ }
+ sc->sc_ohci.sc_io_tag = rman_get_bustag(sc->sc_ohci.sc_io_res);
+ bsh = rman_get_bushandle(sc->sc_ohci.sc_io_res);
+ /* Undocumented magic initialization */
+ bus_space_write_4((sc)->sc_ohci.sc_io_tag, bsh,0x04, 0x146);
+
+ bus_space_write_4((sc)->sc_ohci.sc_io_tag, bsh,0x44, 0x0200);
+
+ DELAY(1000);
+
+ sc->sc_ohci.sc_io_size = rman_get_size(sc->sc_ohci.sc_io_res);
+
+ if (bus_space_subregion(sc->sc_ohci.sc_io_tag, bsh, 0x4000000,
+ sc->sc_ohci.sc_io_size, &sc->sc_ohci.sc_io_hdl) != 0)
+ panic("%s: unable to subregion USB host registers",
+ device_get_name(dev));
+
+ rid = 0;
+ sc->sc_ohci.sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
+ RF_ACTIVE);
+ if (!(sc->sc_ohci.sc_irq_res)) {
+ goto error;
+ }
+ sc->sc_ohci.sc_bus.bdev = device_add_child(dev, "usbus", -1);
+ if (!(sc->sc_ohci.sc_bus.bdev)) {
+ goto error;
+ }
+ device_set_ivars(sc->sc_ohci.sc_bus.bdev, &sc->sc_ohci.sc_bus);
+
+ strlcpy(sc->sc_ohci.sc_vendor, "Cavium",
+ sizeof(sc->sc_ohci.sc_vendor));
+
+#if (__FreeBSD_version >= 700031)
+ err = bus_setup_intr(dev, sc->sc_ohci.sc_irq_res,
+ INTR_TYPE_BIO | INTR_MPSAFE, NULL,
+ (driver_intr_t *)ohci_interrupt, sc,
+ &sc->sc_ohci.sc_intr_hdl);
+#else
+ err = bus_setup_intr(dev, sc->sc_ohci.sc_irq_res,
+ INTR_TYPE_BIO | INTR_MPSAFE,
+ (driver_intr_t *)ohci_interrupt, sc,
+ &sc->sc_ohci.sc_intr_hdl);
+#endif
+ if (err) {
+ sc->sc_ohci.sc_intr_hdl = NULL;
+ goto error;
+ }
+
+ bus_space_write_4(sc->sc_ohci.sc_io_tag, sc->sc_ohci.sc_io_hdl,
+ OHCI_CONTROL, 0);
+
+ err = ohci_init(&sc->sc_ohci);
+ if (!err) {
+ err = device_probe_and_attach(sc->sc_ohci.sc_bus.bdev);
+ }
+ if (err) {
+ goto error;
+ }
+ return (0);
+
+error:
+ ohci_ec_detach(dev);
+ return (ENXIO);
+}
+
+static int
+ohci_ec_detach(device_t dev)
+{
+ struct ec_ohci_softc *sc = device_get_softc(dev);
+ device_t bdev;
+ int err;
+
+ if (sc->sc_ohci.sc_bus.bdev) {
+ bdev = sc->sc_ohci.sc_bus.bdev;
+ device_detach(bdev);
+ device_delete_child(dev, bdev);
+ }
+ /* during module unload there are lots of children leftover */
+ device_delete_all_children(dev);
+
+ bus_space_write_4(sc->sc_ohci.sc_io_tag, sc->sc_ohci.sc_io_hdl,
+ OHCI_CONTROL, 0);
+
+ if (sc->sc_ohci.sc_irq_res && sc->sc_ohci.sc_intr_hdl) {
+ /*
+ * only call ohci_detach() after ohci_init()
+ */
+ ohci_detach(&sc->sc_ohci);
+
+ err = bus_teardown_intr(dev, sc->sc_ohci.sc_irq_res,
+ sc->sc_ohci.sc_intr_hdl);
+ sc->sc_ohci.sc_intr_hdl = NULL;
+ }
+ if (sc->sc_ohci.sc_irq_res) {
+ bus_release_resource(dev, SYS_RES_IRQ, 0,
+ sc->sc_ohci.sc_irq_res);
+ sc->sc_ohci.sc_irq_res = NULL;
+ }
+ if (sc->sc_ohci.sc_io_res) {
+ bus_release_resource(dev, SYS_RES_MEMORY, MEM_RID,
+ sc->sc_ohci.sc_io_res);
+ sc->sc_ohci.sc_io_res = NULL;
+ }
+ usb_bus_mem_free_all(&sc->sc_ohci.sc_bus, &ohci_iterate_hw_softc);
+
+ return (0);
+}
+
+static device_method_t ohci_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, ohci_ec_probe),
+ DEVMETHOD(device_attach, ohci_ec_attach),
+ DEVMETHOD(device_detach, ohci_ec_detach),
+ DEVMETHOD(device_shutdown, bus_generic_shutdown),
+
+ /* Bus interface */
+ DEVMETHOD(bus_print_child, bus_generic_print_child),
+
+ {0, 0}
+};
+
+static driver_t ohci_driver = {
+ "ohci",
+ ohci_methods,
+ sizeof(struct ec_ohci_softc),
+};
+
+static devclass_t ohci_devclass;
+
+DRIVER_MODULE(ohci, econaarm, ohci_driver, ohci_devclass, 0, 0);
+MODULE_DEPEND(ohci, usb, 1, 1, 1);
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