FreeBSD/Linux Kernel Cross Reference
sys/mips/rt305x/rt305x_dotg.c

     #include <sys/cdefs.h>
     __FBSDID("$FreeBSD: releng/10.0/sys/mips/rt305x/rt305x_dotg.c 228483 2011-12-14 00:28:54Z hselasky $");
     
     /*-
      * Copyright (c) 2010,2011 Aleksandr Rybalko. All rights reserved.
      * Copyright (c) 2007-2008 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 <sys/rman.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/dotg.h>
    #include <mips/rt305x/rt305xreg.h>
    #include <mips/rt305x/rt305x_sysctlvar.h>
    
    #define MEM_RID 0
    
    static device_probe_t dotg_obio_probe;
    static device_attach_t dotg_obio_attach;
    static device_detach_t dotg_obio_detach;
    
    struct dotg_obio_softc {
            struct dotg_softc sc_dci;       /* must be first */
    };
    
    static int
    dotg_obio_probe(device_t dev)
    {
            device_set_desc(dev, "DWC like USB OTG controller");
            return (0);
    }
    
    static int
    dotg_obio_attach(device_t dev)
    {
            struct dotg_obio_softc *sc = device_get_softc(dev);
            int err;
    
            /* setup controller interface softc */
    
            /* initialise some bus fields */
            sc->sc_dci.sc_dev = dev;
            sc->sc_dci.sc_bus.parent = dev;
            sc->sc_dci.sc_bus.devices = sc->sc_dci.sc_devices;
            sc->sc_dci.sc_bus.devices_max = DOTG_MAX_DEVICES;
    
            /* get all DMA memory */
            if (usb_bus_mem_alloc_all(&sc->sc_dci.sc_bus,
                USB_GET_DMA_TAG(dev), NULL)) {
                    printf("No mem\n");
                   return (ENOMEM);
           }
           sc->sc_dci.sc_mem_rid = 0;
           sc->sc_dci.sc_mem_res =
               bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->sc_dci.sc_irq_rid,
                                  RF_ACTIVE);
           if (!(sc->sc_dci.sc_mem_res)) {
                   printf("Can`t alloc MEM\n");
                   goto error;
           }
           sc->sc_dci.sc_bst = rman_get_bustag(sc->sc_dci.sc_mem_res);
           sc->sc_dci.sc_bsh = rman_get_bushandle(sc->sc_dci.sc_mem_res);
   
           sc->sc_dci.sc_irq_rid = 0;
           sc->sc_dci.sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, 
               &sc->sc_dci.sc_irq_rid, RF_SHAREABLE| RF_ACTIVE);
           if (!(sc->sc_dci.sc_irq_res)) {
                   printf("Can`t alloc IRQ\n");
                   goto error;
           }
   
           sc->sc_dci.sc_bus.bdev = device_add_child(dev, "usbus", -1);
           if (!(sc->sc_dci.sc_bus.bdev)) {
                   printf("Can`t add usbus\n");
                   goto error;
           }
           device_set_ivars(sc->sc_dci.sc_bus.bdev, &sc->sc_dci.sc_bus);
   
   #if (__FreeBSD_version >= 700031)
           err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res,
               INTR_TYPE_BIO | INTR_MPSAFE, NULL, (driver_intr_t *)dotg_interrupt,
               sc, &sc->sc_dci.sc_intr_hdl);
   #else
           err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res,
               INTR_TYPE_BIO | INTR_MPSAFE, (driver_intr_t *)dotg_interrupt,
               sc, &sc->sc_dci.sc_intr_hdl);
   #endif
           if (err) {
                   sc->sc_dci.sc_intr_hdl = NULL;
                   printf("Can`t set IRQ handle\n");
                   goto error;
           }
   
           /* Run clock for OTG core */
           rt305x_sysctl_set(SYSCTL_CLKCFG1, rt305x_sysctl_get(SYSCTL_CLKCFG1) | 
               SYSCTL_CLKCFG1_OTG_CLK_EN);
           rt305x_sysctl_set(SYSCTL_RSTCTRL, SYSCTL_RSTCTRL_OTG);
           DELAY(100);
   
           err = dotg_init(&sc->sc_dci);
           if (err) printf("dotg_init fail\n");
           if (!err) {
                   err = device_probe_and_attach(sc->sc_dci.sc_bus.bdev);
                   if (err) printf("device_probe_and_attach fail\n");
           }
           if (err) {
                   goto error;
           }
           return (0);
   
   error:
           dotg_obio_detach(dev);
           return (ENXIO);
   }
   
   static int
   dotg_obio_detach(device_t dev)
   {
           struct dotg_obio_softc *sc = device_get_softc(dev);
           device_t bdev;
           int err;
   
           if (sc->sc_dci.sc_bus.bdev) {
                   bdev = sc->sc_dci.sc_bus.bdev;
                   device_detach(bdev);
                   device_delete_child(dev, bdev);
           }
           /* during module unload there are lots of children leftover */
           device_delete_children(dev);
   
           if (sc->sc_dci.sc_irq_res && sc->sc_dci.sc_intr_hdl) {
                   /*
                    * only call dotg_obio_uninit() after dotg_obio_init()
                    */
                   dotg_uninit(&sc->sc_dci);
   
                   /* Stop OTG clock */
                   rt305x_sysctl_set(SYSCTL_CLKCFG1, 
                       rt305x_sysctl_get(SYSCTL_CLKCFG1) & 
                       ~SYSCTL_CLKCFG1_OTG_CLK_EN);
   
                   err = bus_teardown_intr(dev, sc->sc_dci.sc_irq_res,
                       sc->sc_dci.sc_intr_hdl);
                   sc->sc_dci.sc_intr_hdl = NULL;
           }
           if (sc->sc_dci.sc_irq_res) {
                   bus_release_resource(dev, SYS_RES_IRQ, 0,
                       sc->sc_dci.sc_irq_res);
                   sc->sc_dci.sc_irq_res = NULL;
           }
           if (sc->sc_dci.sc_mem_res) {
                   bus_release_resource(dev, SYS_RES_MEMORY, 0,
                       sc->sc_dci.sc_mem_res);
                   sc->sc_dci.sc_mem_res = NULL;
           }
           usb_bus_mem_free_all(&sc->sc_dci.sc_bus, NULL);
   
           return (0);
   }
   
   static device_method_t dotg_obio_methods[] = {
           /* Device interface */
           DEVMETHOD(device_probe, dotg_obio_probe),
           DEVMETHOD(device_attach, dotg_obio_attach),
           DEVMETHOD(device_detach, dotg_obio_detach),
           DEVMETHOD(device_suspend, bus_generic_suspend),
           DEVMETHOD(device_resume, bus_generic_resume),
           DEVMETHOD(device_shutdown, bus_generic_shutdown),
   
           DEVMETHOD_END
   };
   
   static driver_t dotg_obio_driver = {
           .name = "dotg",
           .methods = dotg_obio_methods,
           .size = sizeof(struct dotg_obio_softc),
   };
   
   static devclass_t dotg_obio_devclass;
   
   DRIVER_MODULE(dotg, obio, dotg_obio_driver, dotg_obio_devclass, 0, 0);

Cache object: 7bbd5007364d21f4b5797e812457b7de