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sys/dev/usb/controller/dwc_otg_acpi.c
- This file was added.
| /*- | |||||
| * SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
| * | |||||
| * Copyright (c) 2012 Hans Petter Selasky. | |||||
| * | |||||
val_packett.cool: (@hselasky ok to drop all rights reserved?) | |||||
Not Done Inline ActionsYes, no problem. hselasky: Yes, no problem. | |||||
| * 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/cdefs.h> | |||||
| __FBSDID("$FreeBSD$"); | |||||
| #include "opt_acpi.h" | |||||
| #include <sys/param.h> | |||||
| #include <sys/systm.h> | |||||
| #include <sys/bus.h> | |||||
| #include <sys/condvar.h> | |||||
| #include <sys/kernel.h> | |||||
| #include <sys/lock.h> | |||||
| #include <sys/malloc.h> | |||||
| #include <sys/module.h> | |||||
| #include <sys/mutex.h> | |||||
| #include <sys/rman.h> | |||||
| #include <contrib/dev/acpica/include/acpi.h> | |||||
| #include <contrib/dev/acpica/include/accommon.h> | |||||
| #include <dev/acpica/acpivar.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/dwc_otg.h> | |||||
| static device_probe_t dwc_otg_probe; | |||||
| static device_attach_t dwc_otg_attach; | |||||
| static device_attach_t dwc_otg_detach; | |||||
| static char *dwc_otg_ids[] = { | |||||
| "BCM2848", | |||||
| NULL | |||||
| }; | |||||
| static int | |||||
| dwc_otg_probe(device_t dev) | |||||
| { | |||||
| int rv; | |||||
| if (acpi_disabled("dwc_otg")) | |||||
| return (ENXIO); | |||||
| rv = ACPI_ID_PROBE(device_get_parent(dev), dev, dwc_otg_ids, NULL); | |||||
| if (rv > 0) | |||||
| return (rv); | |||||
Done Inline ActionsThis indentation looks wrong andrew: This indentation looks wrong | |||||
| device_set_desc(dev, "DWC OTG 2.0 integrated USB controller"); | |||||
| return (BUS_PROBE_DEFAULT); | |||||
| } | |||||
| static int | |||||
| dwc_otg_attach(device_t dev) | |||||
| { | |||||
Not Done Inline ActionsIt looks like most of this could move to dwc_otg_init as it's common between the two existing callers and this. andrew: It looks like most of this could move to `dwc_otg_init` as it's common between the two existing… | |||||
Done Inline ActionsIt's interleaved with slightly different things (mode, irq rid) but I'll move everything below the sc_irq_res assignment, sure val_packett.cool: It's interleaved with slightly different things (mode, irq rid) but I'll move everything below… | |||||
| struct dwc_otg_softc *sc = device_get_softc(dev); | |||||
| int err; | |||||
| int rid; | |||||
| sc->sc_bus.parent = dev; | |||||
| /* assume device mode (this is only used for the Raspberry Pi 4's | |||||
| * USB-C port, which only works in device mode) */ | |||||
| sc->sc_mode = DWC_MODE_DEVICE; | |||||
| rid = 0; | |||||
| sc->sc_io_res = | |||||
| bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE); | |||||
| if (sc->sc_io_res == NULL) | |||||
| goto error; | |||||
| rid = 0; | |||||
| sc->sc_irq_res = | |||||
| bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE); | |||||
| if (sc->sc_irq_res == NULL) | |||||
| goto error; | |||||
| err = dwc_otg_init(sc); | |||||
| if (err == 0) { | |||||
| err = device_probe_and_attach(sc->sc_bus.bdev); | |||||
| } | |||||
| if (err) | |||||
| goto error; | |||||
| return (0); | |||||
| error: | |||||
| dwc_otg_detach(dev); | |||||
| return (ENXIO); | |||||
| } | |||||
| static int | |||||
| dwc_otg_detach(device_t dev) | |||||
| { | |||||
| struct dwc_otg_softc *sc = device_get_softc(dev); | |||||
| /* during module unload there are lots of children leftover */ | |||||
| device_delete_children(dev); | |||||
| if (sc->sc_irq_res && sc->sc_intr_hdl) { | |||||
| /* | |||||
| * only call dwc_otg_uninit() after dwc_otg_init() | |||||
| */ | |||||
| dwc_otg_uninit(sc); | |||||
| bus_teardown_intr(dev, sc->sc_irq_res, | |||||
| sc->sc_intr_hdl); | |||||
| sc->sc_intr_hdl = NULL; | |||||
| } | |||||
| /* free IRQ channel, if any */ | |||||
| if (sc->sc_irq_res) { | |||||
| bus_release_resource(dev, SYS_RES_IRQ, 0, | |||||
| sc->sc_irq_res); | |||||
| sc->sc_irq_res = NULL; | |||||
| } | |||||
| /* free memory resource, if any */ | |||||
| 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, NULL); | |||||
| return (0); | |||||
| } | |||||
| static device_method_t dwc_otg_methods[] = { | |||||
| /* Device interface */ | |||||
| DEVMETHOD(device_probe, dwc_otg_probe), | |||||
| DEVMETHOD(device_attach, dwc_otg_attach), | |||||
| DEVMETHOD(device_detach, dwc_otg_detach), | |||||
| DEVMETHOD(device_suspend, bus_generic_suspend), | |||||
| DEVMETHOD(device_resume, bus_generic_resume), | |||||
| DEVMETHOD(device_shutdown, bus_generic_shutdown), | |||||
| DEVMETHOD_END | |||||
| }; | |||||
| static driver_t dwc_otg_driver = { | |||||
| .name = "dwcotg", | |||||
| .methods = dwc_otg_methods, | |||||
| .size = sizeof(struct dwc_otg_softc), | |||||
| }; | |||||
| static devclass_t dwc_otg_devclass; | |||||
| DRIVER_MODULE(dwcotg, acpi, dwc_otg_driver, dwc_otg_devclass, 0, 0); | |||||
| MODULE_DEPEND(dwcotg, usb, 1, 1, 1); | |||||
Not Done Inline ActionsThe generic DEVMETHODs should move to the base class. andrew: The generic DEVMETHODs should move to the base class. | |||||
Done Inline ActionsThere's no base class, dwc_otg only exports functions. I'm not sure it's worth creating just for three generic methods. val_packett.cool: There's no base class, `dwc_otg` only exports functions. I'm not sure it's worth creating just… | |||||
(@hselasky ok to drop all rights reserved?)