freebsd-dev/sys/dev/usb/controller/ohci_s3c24x0.c
John Baldwin 58ccf5b41c Remove unneeded includes of <sys/linker_set.h>. Other headers that use
it internally contain nested includes.

Reviewed by:	bde
2011-01-11 13:59:06 +00:00

219 lines
5.8 KiB
C

/*-
* Copyright (c) 2006 M. Warner Losh. All rights reserved.
* Copyright (c) 2009 Andrew Turner. 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/s3c2xx0/s3c24x0reg.h>
static device_probe_t ohci_s3c24x0_probe;
static device_attach_t ohci_s3c24x0_attach;
static device_detach_t ohci_s3c24x0_detach;
static int
ohci_s3c24x0_probe(device_t dev)
{
device_set_desc(dev, "S3C24x0 integrated OHCI controller");
return (BUS_PROBE_DEFAULT);
}
static int
ohci_s3c24x0_attach(device_t dev)
{
struct ohci_softc *sc = device_get_softc(dev);
int err;
int rid;
/* initialise some bus fields */
sc->sc_bus.parent = dev;
sc->sc_bus.devices = sc->sc_devices;
sc->sc_bus.devices_max = OHCI_MAX_DEVICES;
/* get all DMA memory */
if (usb_bus_mem_alloc_all(&sc->sc_bus, USB_GET_DMA_TAG(dev),
&ohci_iterate_hw_softc)) {
return (ENOMEM);
}
sc->sc_dev = dev;
rid = 0;
sc->sc_io_res = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
&rid, RF_ACTIVE);
if (!(sc->sc_io_res)) {
err = ENOMEM;
goto error;
}
sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res);
sc->sc_io_size = rman_get_size(sc->sc_io_res);
rid = 0;
sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_ACTIVE);
if (!(sc->sc_irq_res)) {
goto error;
}
sc->sc_bus.bdev = device_add_child(dev, "usbus", -1);
if (!(sc->sc_bus.bdev)) {
goto error;
}
device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
strlcpy(sc->sc_vendor, "Samsung", sizeof(sc->sc_vendor));
err = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
NULL, (void *)ohci_interrupt, sc, &sc->sc_intr_hdl);
if (err) {
sc->sc_intr_hdl = NULL;
goto error;
}
bus_space_write_4(sc->sc_io_tag, sc->sc_io_hdl,
OHCI_CONTROL, 0);
err = ohci_init(sc);
if (!err) {
err = device_probe_and_attach(sc->sc_bus.bdev);
}
if (err) {
goto error;
}
return (0);
error:
ohci_s3c24x0_detach(dev);
return (ENXIO);
}
static int
ohci_s3c24x0_detach(device_t dev)
{
struct ohci_softc *sc = device_get_softc(dev);
device_t bdev;
int err;
if (sc->sc_bus.bdev) {
bdev = sc->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);
/*
* Put the controller into reset, then disable clocks and do
* the MI tear down. We have to disable the clocks/hardware
* after we do the rest of the teardown. We also disable the
* clocks in the opposite order we acquire them, but that
* doesn't seem to be absolutely necessary. We free up the
* clocks after we disable them, so the system could, in
* theory, reuse them.
*/
bus_space_write_4(sc->sc_io_tag, sc->sc_io_hdl,
OHCI_CONTROL, 0);
if (sc->sc_irq_res && sc->sc_intr_hdl) {
/*
* only call ohci_detach() after ohci_init()
*/
ohci_detach(sc);
err = bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_intr_hdl);
sc->sc_intr_hdl = NULL;
}
if (sc->sc_irq_res) {
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq_res);
sc->sc_irq_res = NULL;
}
if (sc->sc_io_res) {
bus_release_resource(dev, SYS_RES_MEMORY, 0,
sc->sc_io_res);
sc->sc_io_res = NULL;
}
usb_bus_mem_free_all(&sc->sc_bus, &ohci_iterate_hw_softc);
return (0);
}
static device_method_t ohci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ohci_s3c24x0_probe),
DEVMETHOD(device_attach, ohci_s3c24x0_attach),
DEVMETHOD(device_detach, ohci_s3c24x0_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 ohci_softc),
};
static devclass_t ohci_devclass;
DRIVER_MODULE(ohci, s3c24x0, ohci_driver, ohci_devclass, 0, 0);
MODULE_DEPEND(ohci, usb, 1, 1, 1);