FreeBSD/Linux Kernel Cross Reference
sys/mips/rmi/xls_ehci.c

     /*-
      * Copyright (c) 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Lennart Augustsson (augustss@carlstedt.se) at
      * Carlstedt Research & Technology.
      *
      * 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.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *        This product includes software developed by the NetBSD
     *        Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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: releng/8.4/sys/mips/rmi/xls_ehci.c 230714 2012-01-29 01:22:48Z marius $");
    
    #include "opt_bus.h"
    
    #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 <sys/rman.h>
    #include <machine/resource.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/ehci.h>
    #include <dev/usb/controller/ehcireg.h>
    #include <mips/rmi/pic.h>
    
    static device_attach_t ehci_xls_attach;
    static device_detach_t ehci_xls_detach;
    
    static const char *xlr_usb_dev_desc = "RMI XLR USB 2.0 controller";
    static const char *xlr_vendor_desc = "RMI Corp";
    
    static int
    ehci_xls_probe(device_t self)
    {
            /* TODO see if usb is enabled on the board */
            device_set_desc(self, xlr_usb_dev_desc);
            return BUS_PROBE_DEFAULT;
    }
    
    static int
    ehci_xls_attach(device_t self)
    {
            ehci_softc_t *sc = device_get_softc(self);
            int err;
            int rid;
    
           sc->sc_bus.parent = self;
           sc->sc_bus.devices = sc->sc_devices;
           sc->sc_bus.devices_max = EHCI_MAX_DEVICES;
   
           /* get all DMA memory */
           if (usb_bus_mem_alloc_all(&sc->sc_bus,
               USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) {
                   return (ENOMEM);
           }
   
           rid = 0;
           sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
               RF_ACTIVE);
           if (!sc->sc_io_res) {
                   device_printf(self, "Could not map memory\n");
                   goto error;
           }
           sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
           sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res);
           printf("IO Resource tag %lx, hdl %lx, size %lx\n",
                  (u_long)sc->sc_io_tag, (u_long)sc->sc_io_hdl, 
                  (u_long)sc->sc_io_size);
   
           rid = 0;
           sc->sc_irq_res = bus_alloc_resource(self, SYS_RES_IRQ, &rid,
               PIC_USB_IRQ, PIC_USB_IRQ, 1, RF_SHAREABLE | RF_ACTIVE);
           if (sc->sc_irq_res == NULL) {
                   device_printf(self, "Could not allocate irq\n");
                   goto error;
           }
   
           sc->sc_bus.bdev = device_add_child(self, "usbus", -1);
           if (!sc->sc_bus.bdev) {
                   device_printf(self, "Could not add USB device\n");
                   goto error;
           }
           device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
           device_set_desc(sc->sc_bus.bdev, xlr_usb_dev_desc);
   
           sprintf(sc->sc_vendor, xlr_vendor_desc);
   
           err = bus_setup_intr(self, sc->sc_irq_res,
               INTR_TYPE_BIO | INTR_MPSAFE, NULL,
               (driver_intr_t *) ehci_interrupt, sc, &sc->sc_intr_hdl);
           if (err) {
                   device_printf(self, "Could not setup irq, %d\n", err);
                   sc->sc_intr_hdl = NULL;
                   goto error;
           }
   
           err = ehci_init(sc);
           if (err) {
                   device_printf(self, "USB init failed err=%d\n", err);
                   goto error;
           }
   
           err = device_probe_and_attach(sc->sc_bus.bdev);
           if (err) {
                   device_printf(self, "USB probe and attach failed err=%d\n", err);
                   goto error;
           }
   
           return (0);
   
   error:
           ehci_xls_detach(self);
           return (ENXIO);
   }
   
   static int
   ehci_xls_detach(device_t self)
   {
           ehci_softc_t *sc = device_get_softc(self);
           device_t bdev;
           int err;
   
           if (sc->sc_bus.bdev) {
                   bdev = sc->sc_bus.bdev;
                   device_detach(bdev);
                   device_delete_child(self, bdev);
           }
           /* during module unload there are lots of children leftover */
           device_delete_all_children(self);
   
           if (sc->sc_irq_res && sc->sc_intr_hdl) {
                   ehci_detach(sc);
   
                   err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
                   if (err)
                           device_printf(self, "Could not tear down irq, %d\n",
                               err);
                   sc->sc_intr_hdl = 0;
           }
   
           if (sc->sc_irq_res) {
                   bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res);
                   sc->sc_irq_res = NULL;
           }
           if (sc->sc_io_res) {
                   bus_release_resource(self, SYS_RES_MEMORY, 0,
                       sc->sc_io_res);
                   sc->sc_io_res = NULL;
                   sc->sc_io_tag = 0;
                   sc->sc_io_hdl = 0;
           }
   
           usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc);
   
           return (0);
   }
   
   static device_method_t ehci_methods[] = {
           /* Device interface */
           DEVMETHOD(device_probe, ehci_xls_probe),
           DEVMETHOD(device_attach, ehci_xls_attach),
           DEVMETHOD(device_detach, ehci_xls_detach),
           DEVMETHOD(device_suspend, bus_generic_suspend),
           DEVMETHOD(device_resume, bus_generic_resume),
           DEVMETHOD(device_shutdown, bus_generic_shutdown),
   
           DEVMETHOD_END
   };
   
   static driver_t ehci_driver = {
           .name = "ehci",
           .methods = ehci_methods,
           .size = sizeof(struct ehci_softc),
   };
   
   static devclass_t ehci_devclass;
   
   DRIVER_MODULE(ehci, iodi, ehci_driver, ehci_devclass, 0, 0);
   MODULE_DEPEND(ehci, usb, 1, 1, 1);

Cache object: c4e4c83f2d64b197d4e53deef1e32587