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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/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_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_resume, bus_generic_resume),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD_END
};
static driver_t ohci_driver = {
.name = "ohci",
.methods = ohci_methods,
.size = 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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