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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
240 lines
6.4 KiB
C
240 lines
6.4 KiB
C
/*-
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* Copyright (c) 2009 Yohanes Nugroho <yohanes@gmail.com>
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* 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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 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/ohci.h>
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#include <dev/usb/controller/ohcireg.h>
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#include <sys/rman.h>
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#include <arm/econa/econa_reg.h>
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#define MEM_RID 0
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static device_probe_t ohci_ec_probe;
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static device_attach_t ohci_ec_attach;
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static device_detach_t ohci_ec_detach;
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struct ec_ohci_softc {
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struct ohci_softc sc_ohci; /* must be first */
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};
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static int
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ohci_ec_probe(device_t dev)
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{
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device_set_desc(dev, "Econa integrated OHCI controller");
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return (BUS_PROBE_DEFAULT);
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}
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static int
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ohci_ec_attach(device_t dev)
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{
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struct ec_ohci_softc *sc = device_get_softc(dev);
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bus_space_handle_t bsh;
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int err;
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int rid;
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/* initialise some bus fields */
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sc->sc_ohci.sc_bus.parent = dev;
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sc->sc_ohci.sc_bus.devices = sc->sc_ohci.sc_devices;
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sc->sc_ohci.sc_bus.devices_max = OHCI_MAX_DEVICES;
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/* get all DMA memory */
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if (usb_bus_mem_alloc_all(&sc->sc_ohci.sc_bus,
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USB_GET_DMA_TAG(dev), &ohci_iterate_hw_softc)) {
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return (ENOMEM);
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}
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sc->sc_ohci.sc_dev = dev;
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rid = MEM_RID;
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sc->sc_ohci.sc_io_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&rid, RF_ACTIVE);
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if (!(sc->sc_ohci.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_ohci.sc_io_tag = rman_get_bustag(sc->sc_ohci.sc_io_res);
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bsh = rman_get_bushandle(sc->sc_ohci.sc_io_res);
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/* Undocumented magic initialization */
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bus_space_write_4((sc)->sc_ohci.sc_io_tag, bsh,0x04, 0x146);
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bus_space_write_4((sc)->sc_ohci.sc_io_tag, bsh,0x44, 0x0200);
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DELAY(1000);
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sc->sc_ohci.sc_io_size = rman_get_size(sc->sc_ohci.sc_io_res);
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if (bus_space_subregion(sc->sc_ohci.sc_io_tag, bsh, 0x4000000,
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sc->sc_ohci.sc_io_size, &sc->sc_ohci.sc_io_hdl) != 0)
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panic("%s: unable to subregion USB host registers",
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device_get_name(dev));
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rid = 0;
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sc->sc_ohci.sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
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RF_ACTIVE);
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if (!(sc->sc_ohci.sc_irq_res)) {
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goto error;
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}
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sc->sc_ohci.sc_bus.bdev = device_add_child(dev, "usbus", -1);
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if (!(sc->sc_ohci.sc_bus.bdev)) {
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goto error;
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}
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device_set_ivars(sc->sc_ohci.sc_bus.bdev, &sc->sc_ohci.sc_bus);
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strlcpy(sc->sc_ohci.sc_vendor, "Cavium",
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sizeof(sc->sc_ohci.sc_vendor));
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#if (__FreeBSD_version >= 700031)
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err = bus_setup_intr(dev, sc->sc_ohci.sc_irq_res,
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INTR_TYPE_BIO | INTR_MPSAFE, NULL,
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(driver_intr_t *)ohci_interrupt, sc,
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&sc->sc_ohci.sc_intr_hdl);
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#else
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err = bus_setup_intr(dev, sc->sc_ohci.sc_irq_res,
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INTR_TYPE_BIO | INTR_MPSAFE,
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(driver_intr_t *)ohci_interrupt, sc,
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&sc->sc_ohci.sc_intr_hdl);
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#endif
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if (err) {
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sc->sc_ohci.sc_intr_hdl = NULL;
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goto error;
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}
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bus_space_write_4(sc->sc_ohci.sc_io_tag, sc->sc_ohci.sc_io_hdl,
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OHCI_CONTROL, 0);
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err = ohci_init(&sc->sc_ohci);
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if (!err) {
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err = device_probe_and_attach(sc->sc_ohci.sc_bus.bdev);
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}
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if (err) {
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goto error;
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}
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return (0);
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error:
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ohci_ec_detach(dev);
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return (ENXIO);
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}
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static int
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ohci_ec_detach(device_t dev)
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{
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struct ec_ohci_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_ohci.sc_bus.bdev) {
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bdev = sc->sc_ohci.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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bus_space_write_4(sc->sc_ohci.sc_io_tag, sc->sc_ohci.sc_io_hdl,
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OHCI_CONTROL, 0);
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if (sc->sc_ohci.sc_irq_res && sc->sc_ohci.sc_intr_hdl) {
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/*
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* only call ohci_detach() after ohci_init()
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*/
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ohci_detach(&sc->sc_ohci);
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err = bus_teardown_intr(dev, sc->sc_ohci.sc_irq_res,
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sc->sc_ohci.sc_intr_hdl);
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sc->sc_ohci.sc_intr_hdl = NULL;
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}
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if (sc->sc_ohci.sc_irq_res) {
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bus_release_resource(dev, SYS_RES_IRQ, 0,
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sc->sc_ohci.sc_irq_res);
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sc->sc_ohci.sc_irq_res = NULL;
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}
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if (sc->sc_ohci.sc_io_res) {
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bus_release_resource(dev, SYS_RES_MEMORY, MEM_RID,
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sc->sc_ohci.sc_io_res);
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sc->sc_ohci.sc_io_res = NULL;
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}
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usb_bus_mem_free_all(&sc->sc_ohci.sc_bus, &ohci_iterate_hw_softc);
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return (0);
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}
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static device_method_t ohci_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ohci_ec_probe),
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DEVMETHOD(device_attach, ohci_ec_attach),
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DEVMETHOD(device_detach, ohci_ec_detach),
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DEVMETHOD(device_resume, bus_generic_resume),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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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 ohci_driver = {
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.name = "ohci",
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.methods = ohci_methods,
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.size = sizeof(struct ec_ohci_softc),
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};
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static devclass_t ohci_devclass;
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DRIVER_MODULE(ohci, econaarm, ohci_driver, ohci_devclass, 0, 0);
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MODULE_DEPEND(ohci, usb, 1, 1, 1);
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