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/* $FreeBSD$ */
/*-
* Copyright (c) 2008 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/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/musb_otg.h>
#include <sys/rman.h>
static device_probe_t musbotg_probe;
static device_attach_t musbotg_attach;
static device_detach_t musbotg_detach;
static device_shutdown_t musbotg_shutdown;
struct musbotg_super_softc {
struct musbotg_softc sc_otg; /* must be first */
};
static void
musbotg_vbus_poll(struct musbotg_super_softc *sc)
{
uint8_t vbus_val = 1; /* fake VBUS on - TODO */
/* just forward it */
musbotg_vbus_interrupt(&sc->sc_otg, vbus_val);
}
static void
musbotg_clocks_on(void *arg)
{
#if 0
struct musbotg_super_softc *sc = arg;
#endif
}
static void
musbotg_clocks_off(void *arg)
{
#if 0
struct musbotg_super_softc *sc = arg;
#endif
}
static int
musbotg_probe(device_t dev)
{
device_set_desc(dev, "MUSB OTG integrated USB controller");
return (0);
}
static int
musbotg_attach(device_t dev)
{
struct musbotg_super_softc *sc = device_get_softc(dev);
int err;
int rid;
/* setup MUSB OTG USB controller interface softc */
sc->sc_otg.sc_clocks_on = &musbotg_clocks_on;
sc->sc_otg.sc_clocks_off = &musbotg_clocks_off;
sc->sc_otg.sc_clocks_arg = sc;
/* 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 = MUSB2_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)) {
goto error;
}
sc->sc_otg.sc_bus.bdev = device_add_child(dev, "usbus", -1);
if (!(sc->sc_otg.sc_bus.bdev)) {
goto error;
}
device_set_ivars(sc->sc_otg.sc_bus.bdev, &sc->sc_otg.sc_bus);
#if (__FreeBSD_version >= 700031)
err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
NULL, (driver_intr_t *)musbotg_interrupt, sc, &sc->sc_otg.sc_intr_hdl);
#else
err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
(driver_intr_t *)musbotg_interrupt, sc, &sc->sc_otg.sc_intr_hdl);
#endif
if (err) {
sc->sc_otg.sc_intr_hdl = NULL;
goto error;
}
err = musbotg_init(&sc->sc_otg);
if (!err) {
err = device_probe_and_attach(sc->sc_otg.sc_bus.bdev);
}
if (err) {
goto error;
} else {
/* poll VBUS one time */
musbotg_vbus_poll(sc);
}
return (0);
error:
musbotg_detach(dev);
return (ENXIO);
}
static int
musbotg_detach(device_t dev)
{
struct musbotg_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_all_children(dev);
if (sc->sc_otg.sc_irq_res && sc->sc_otg.sc_intr_hdl) {
/*
* only call musbotg_uninit() after musbotg_init()
*/
musbotg_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 int
musbotg_shutdown(device_t dev)
{
struct musbotg_super_softc *sc = device_get_softc(dev);
int err;
err = bus_generic_shutdown(dev);
if (err)
return (err);
musbotg_uninit(&sc->sc_otg);
return (0);
}
static device_method_t musbotg_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, musbotg_probe),
DEVMETHOD(device_attach, musbotg_attach),
DEVMETHOD(device_detach, musbotg_detach),
DEVMETHOD(device_shutdown, musbotg_shutdown),
/* Bus interface */
DEVMETHOD(bus_print_child, bus_generic_print_child),
{0, 0}
};
static driver_t musbotg_driver = {
"musbotg",
musbotg_methods,
sizeof(struct musbotg_super_softc),
};
static devclass_t musbotg_devclass;
DRIVER_MODULE(musbotg, atmelarm, musbotg_driver, musbotg_devclass, 0, 0);
MODULE_DEPEND(musbotg, usb, 1, 1, 1);
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