freebsd-dev/sys/dev/usb/controller/atmegadci_atmelarm.c
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

214 lines
5.8 KiB
C

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2009 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/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/atmegadci.h>
#include <sys/rman.h>
static device_probe_t atmegadci_probe;
static device_attach_t atmegadci_attach;
static device_detach_t atmegadci_detach;
struct atmegadci_super_softc {
struct atmegadci_softc sc_otg; /* must be first */
};
static void
atmegadci_clocks_on(struct usb_bus *bus)
{
/* TODO */
}
static void
atmegadci_clocks_off(struct usb_bus *bus)
{
/* TODO */
}
static int
atmegadci_probe(device_t dev)
{
device_set_desc(dev, "ATMEL OTG integrated USB controller");
return (0);
}
static int
atmegadci_attach(device_t dev)
{
struct atmegadci_super_softc *sc = device_get_softc(dev);
int err;
int rid;
/* setup MUSB OTG USB controller interface softc */
sc->sc_otg.sc_clocks_on = &atmegadci_clocks_on;
sc->sc_otg.sc_clocks_off = &atmegadci_clocks_off;
/* 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 = ATMEGA_MAX_DEVICES;
sc->sc_otg.sc_bus.dma_bits = 32;
/* 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);
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);
err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
NULL, (driver_intr_t *)atmegadci_interrupt, sc, &sc->sc_otg.sc_intr_hdl);
if (err) {
sc->sc_otg.sc_intr_hdl = NULL;
goto error;
}
err = atmegadci_init(&sc->sc_otg);
if (!err) {
err = device_probe_and_attach(sc->sc_otg.sc_bus.bdev);
}
if (err) {
goto error;
}
return (0);
error:
atmegadci_detach(dev);
return (ENXIO);
}
static int
atmegadci_detach(device_t dev)
{
struct atmegadci_super_softc *sc = device_get_softc(dev);
int err;
/* 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 atmegadci_uninit() after atmegadci_init()
*/
atmegadci_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 atmegadci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, atmegadci_probe),
DEVMETHOD(device_attach, atmegadci_attach),
DEVMETHOD(device_detach, atmegadci_detach),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD_END
};
static driver_t atmegadci_driver = {
.name = "atmegadci",
.methods = atmegadci_methods,
.size = sizeof(struct atmegadci_super_softc),
};
static devclass_t atmegadci_devclass;
DRIVER_MODULE(atmegadci, atmelarm, atmegadci_driver, atmegadci_devclass, 0, 0);
MODULE_DEPEND(atmegadci, usb, 1, 1, 1);