2e14174893
This patch should remove the need for kldunload of USB controller drivers at suspend and kldload of USB controller drivers at resume. This patch also fixes some build issues in avr32dci.c MFC after: 2 weeks
242 lines
6.3 KiB
C
242 lines
6.3 KiB
C
/*-
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* Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/stdint.h>
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#include <sys/stddef.h>
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/types.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/module.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/condvar.h>
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#include <sys/sysctl.h>
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#include <sys/sx.h>
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#include <sys/unistd.h>
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#include <sys/callout.h>
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#include <sys/malloc.h>
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#include <sys/priv.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usb_core.h>
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#include <dev/usb/usb_busdma.h>
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#include <dev/usb/usb_process.h>
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#include <dev/usb/usb_util.h>
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#include <dev/usb/usb_controller.h>
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#include <dev/usb/usb_bus.h>
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#include <dev/usb/controller/musb_otg.h>
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#include <sys/rman.h>
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static device_probe_t musbotg_probe;
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static device_attach_t musbotg_attach;
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static device_detach_t musbotg_detach;
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struct musbotg_super_softc {
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struct musbotg_softc sc_otg; /* must be first */
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};
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static void
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musbotg_vbus_poll(struct musbotg_super_softc *sc)
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{
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uint8_t vbus_val = 1; /* fake VBUS on - TODO */
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/* just forward it */
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musbotg_vbus_interrupt(&sc->sc_otg, vbus_val);
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}
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static void
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musbotg_clocks_on(void *arg)
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{
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#if 0
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struct musbotg_super_softc *sc = arg;
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#endif
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}
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static void
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musbotg_clocks_off(void *arg)
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{
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#if 0
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struct musbotg_super_softc *sc = arg;
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#endif
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}
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static int
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musbotg_probe(device_t dev)
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{
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device_set_desc(dev, "MUSB OTG integrated USB controller");
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return (0);
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}
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static int
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musbotg_attach(device_t dev)
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{
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struct musbotg_super_softc *sc = device_get_softc(dev);
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int err;
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int rid;
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/* setup MUSB OTG USB controller interface softc */
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sc->sc_otg.sc_clocks_on = &musbotg_clocks_on;
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sc->sc_otg.sc_clocks_off = &musbotg_clocks_off;
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sc->sc_otg.sc_clocks_arg = sc;
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/* initialise some bus fields */
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sc->sc_otg.sc_bus.parent = dev;
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sc->sc_otg.sc_bus.devices = sc->sc_otg.sc_devices;
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sc->sc_otg.sc_bus.devices_max = MUSB2_MAX_DEVICES;
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/* get all DMA memory */
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if (usb_bus_mem_alloc_all(&sc->sc_otg.sc_bus,
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USB_GET_DMA_TAG(dev), NULL)) {
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return (ENOMEM);
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}
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rid = 0;
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sc->sc_otg.sc_io_res =
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bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
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if (!(sc->sc_otg.sc_io_res)) {
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err = ENOMEM;
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goto error;
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}
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sc->sc_otg.sc_io_tag = rman_get_bustag(sc->sc_otg.sc_io_res);
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sc->sc_otg.sc_io_hdl = rman_get_bushandle(sc->sc_otg.sc_io_res);
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sc->sc_otg.sc_io_size = rman_get_size(sc->sc_otg.sc_io_res);
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rid = 0;
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sc->sc_otg.sc_irq_res =
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bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
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if (!(sc->sc_otg.sc_irq_res)) {
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goto error;
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}
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sc->sc_otg.sc_bus.bdev = device_add_child(dev, "usbus", -1);
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if (!(sc->sc_otg.sc_bus.bdev)) {
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goto error;
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}
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device_set_ivars(sc->sc_otg.sc_bus.bdev, &sc->sc_otg.sc_bus);
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#if (__FreeBSD_version >= 700031)
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err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
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NULL, (driver_intr_t *)musbotg_interrupt, sc, &sc->sc_otg.sc_intr_hdl);
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#else
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err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
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(driver_intr_t *)musbotg_interrupt, sc, &sc->sc_otg.sc_intr_hdl);
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#endif
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if (err) {
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sc->sc_otg.sc_intr_hdl = NULL;
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goto error;
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}
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err = musbotg_init(&sc->sc_otg);
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if (!err) {
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err = device_probe_and_attach(sc->sc_otg.sc_bus.bdev);
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}
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if (err) {
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goto error;
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} else {
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/* poll VBUS one time */
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musbotg_vbus_poll(sc);
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}
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return (0);
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error:
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musbotg_detach(dev);
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return (ENXIO);
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}
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static int
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musbotg_detach(device_t dev)
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{
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struct musbotg_super_softc *sc = device_get_softc(dev);
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device_t bdev;
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int err;
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if (sc->sc_otg.sc_bus.bdev) {
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bdev = sc->sc_otg.sc_bus.bdev;
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device_detach(bdev);
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device_delete_child(dev, bdev);
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}
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/* during module unload there are lots of children leftover */
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device_delete_children(dev);
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if (sc->sc_otg.sc_irq_res && sc->sc_otg.sc_intr_hdl) {
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/*
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* only call musbotg_uninit() after musbotg_init()
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*/
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musbotg_uninit(&sc->sc_otg);
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err = bus_teardown_intr(dev, sc->sc_otg.sc_irq_res,
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sc->sc_otg.sc_intr_hdl);
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sc->sc_otg.sc_intr_hdl = NULL;
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}
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/* free IRQ channel, if any */
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if (sc->sc_otg.sc_irq_res) {
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bus_release_resource(dev, SYS_RES_IRQ, 0,
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sc->sc_otg.sc_irq_res);
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sc->sc_otg.sc_irq_res = NULL;
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}
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/* free memory resource, if any */
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if (sc->sc_otg.sc_io_res) {
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bus_release_resource(dev, SYS_RES_MEMORY, 0,
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sc->sc_otg.sc_io_res);
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sc->sc_otg.sc_io_res = NULL;
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}
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usb_bus_mem_free_all(&sc->sc_otg.sc_bus, NULL);
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return (0);
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}
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static device_method_t musbotg_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, musbotg_probe),
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DEVMETHOD(device_attach, musbotg_attach),
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DEVMETHOD(device_detach, musbotg_detach),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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DEVMETHOD(device_resume, bus_generic_resume),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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DEVMETHOD_END
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};
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static driver_t musbotg_driver = {
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.name = "musbotg",
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.methods = musbotg_methods,
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.size = sizeof(struct musbotg_super_softc),
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};
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static devclass_t musbotg_devclass;
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DRIVER_MODULE(musbotg, atmelarm, musbotg_driver, musbotg_devclass, 0, 0);
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MODULE_DEPEND(musbotg, usb, 1, 1, 1);
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