octusb_octeon.c

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    1 #include <sys/cdefs.h>
    2 __FBSDID("$FreeBSD: releng/11.0/sys/mips/cavium/usb/octusb_octeon.c 276717 2015-01-05 20:22:18Z hselasky $");
    3 
    4 /*-
    5  * Copyright (c) 2007-2008 Hans Petter Selasky. All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  */
   28 
   29 #include <sys/stdint.h>
   30 #include <sys/stddef.h>
   31 #include <sys/param.h>
   32 #include <sys/queue.h>
   33 #include <sys/types.h>
   34 #include <sys/systm.h>
   35 #include <sys/kernel.h>
   36 #include <sys/bus.h>
   37 #include <sys/module.h>
   38 #include <sys/lock.h>
   39 #include <sys/mutex.h>
   40 #include <sys/condvar.h>
   41 #include <sys/sysctl.h>
   42 #include <sys/sx.h>
   43 #include <sys/unistd.h>
   44 #include <sys/callout.h>
   45 #include <sys/malloc.h>
   46 #include <sys/priv.h>
   47 #include <sys/rman.h>
   48 
   49 #include <dev/usb/usb.h>
   50 #include <dev/usb/usbdi.h>
   51 
   52 #include <dev/usb/usb_core.h>
   53 #include <dev/usb/usb_busdma.h>
   54 #include <dev/usb/usb_process.h>
   55 #include <dev/usb/usb_util.h>
   56 
   57 #include <dev/usb/usb_controller.h>
   58 #include <dev/usb/usb_bus.h>
   59 
   60 #include <contrib/octeon-sdk/cvmx.h>
   61 #include <mips/cavium/octeon_irq.h>
   62 #include <contrib/octeon-sdk/cvmx-usb.h>
   63 
   64 #include <mips/cavium/usb/octusb.h>
   65 
   66 #define MEM_RID 0
   67 
   68 static device_identify_t octusb_octeon_identify;
   69 static device_probe_t octusb_octeon_probe;
   70 static device_attach_t octusb_octeon_attach;
   71 static device_detach_t octusb_octeon_detach;
   72 
   73 struct octusb_octeon_softc {
   74         struct octusb_softc sc_dci;     /* must be first */
   75 };
   76 
   77 static void
   78 octusb_octeon_identify(driver_t *drv, device_t parent)
   79 {
   80         if (octeon_has_feature(OCTEON_FEATURE_USB))
   81                 BUS_ADD_CHILD(parent, 0, "octusb", 0);
   82 }
   83 
   84 static int
   85 octusb_octeon_probe(device_t dev)
   86 {
   87         device_set_desc(dev, "Cavium Octeon USB controller");
   88         return (0);
   89 }
   90 
   91 static int
   92 octusb_octeon_attach(device_t dev)
   93 {
   94         struct octusb_octeon_softc *sc = device_get_softc(dev);
   95         int err;
   96         int rid;
   97         int nports;
   98         int i;
   99 
  100         /* setup controller interface softc */
  101 
  102         /* initialise some bus fields */
  103         sc->sc_dci.sc_bus.parent = dev;
  104         sc->sc_dci.sc_bus.devices = sc->sc_dci.sc_devices;
  105         sc->sc_dci.sc_bus.devices_max = OCTUSB_MAX_DEVICES;
  106         sc->sc_dci.sc_bus.dma_bits = 32;
  107 
  108         /* get all DMA memory */
  109         if (usb_bus_mem_alloc_all(&sc->sc_dci.sc_bus,
  110             USB_GET_DMA_TAG(dev), NULL)) {
  111                 return (ENOMEM);
  112         }
  113         nports = cvmx_usb_get_num_ports();
  114         if (nports > OCTUSB_MAX_PORTS)
  115                 panic("octusb: too many USB ports %d", nports);
  116         for (i = 0; i < nports; i++) {
  117                 rid = 0;
  118                 sc->sc_dci.sc_irq_res[i] =
  119                     bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
  120                                OCTEON_IRQ_USB0 + i, OCTEON_IRQ_USB0 + i, 1, RF_ACTIVE);
  121                 if (!(sc->sc_dci.sc_irq_res[i])) {
  122                         goto error;
  123                 }
  124 
  125 #if (__FreeBSD_version >= 700031)
  126                 err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res[i], INTR_TYPE_BIO | INTR_MPSAFE,
  127                     NULL, (driver_intr_t *)octusb_interrupt, sc, &sc->sc_dci.sc_intr_hdl[i]);
  128 #else
  129                 err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res[i], INTR_TYPE_BIO | INTR_MPSAFE,
  130                     (driver_intr_t *)octusb_interrupt, sc, &sc->sc_dci.sc_intr_hdl[i]);
  131 #endif
  132                 if (err) {
  133                         sc->sc_dci.sc_intr_hdl[i] = NULL;
  134                         goto error;
  135                 }
  136         }
  137 
  138         sc->sc_dci.sc_bus.bdev = device_add_child(dev, "usbus", -1);
  139         if (!(sc->sc_dci.sc_bus.bdev)) {
  140                 goto error;
  141         }
  142         device_set_ivars(sc->sc_dci.sc_bus.bdev, &sc->sc_dci.sc_bus);
  143 
  144 
  145         err = octusb_init(&sc->sc_dci);
  146         if (!err) {
  147                 err = device_probe_and_attach(sc->sc_dci.sc_bus.bdev);
  148         }
  149         if (err) {
  150                 goto error;
  151         }
  152         return (0);
  153 
  154 error:
  155         octusb_octeon_detach(dev);
  156         return (ENXIO);
  157 }
  158 
  159 static int
  160 octusb_octeon_detach(device_t dev)
  161 {
  162         struct octusb_octeon_softc *sc = device_get_softc(dev);
  163         device_t bdev;
  164         int err;
  165         int nports;
  166         int i;
  167 
  168         if (sc->sc_dci.sc_bus.bdev) {
  169                 bdev = sc->sc_dci.sc_bus.bdev;
  170                 device_detach(bdev);
  171                 device_delete_child(dev, bdev);
  172         }
  173         /* during module unload there are lots of children leftover */
  174         device_delete_children(dev);
  175 
  176         if (sc->sc_dci.sc_irq_res[0] && sc->sc_dci.sc_intr_hdl[0])
  177                 /*
  178                  * only call octusb_octeon_uninit() after octusb_octeon_init()
  179                  */
  180                 octusb_uninit(&sc->sc_dci);
  181 
  182         nports = cvmx_usb_get_num_ports();
  183         if (nports > OCTUSB_MAX_PORTS)
  184                 panic("octusb: too many USB ports %d", nports);
  185         for (i = 0; i < nports; i++) {
  186                 if (sc->sc_dci.sc_irq_res[0] && sc->sc_dci.sc_intr_hdl[0]) {
  187                         err = bus_teardown_intr(dev, sc->sc_dci.sc_irq_res[i],
  188                             sc->sc_dci.sc_intr_hdl[i]);
  189                         sc->sc_dci.sc_intr_hdl[i] = NULL;
  190                 }
  191                 if (sc->sc_dci.sc_irq_res) {
  192                         bus_release_resource(dev, SYS_RES_IRQ, 0,
  193                             sc->sc_dci.sc_irq_res[i]);
  194                         sc->sc_dci.sc_irq_res[i] = NULL;
  195                 }
  196         }
  197         usb_bus_mem_free_all(&sc->sc_dci.sc_bus, NULL);
  198 
  199         return (0);
  200 }
  201 
  202 static device_method_t octusb_octeon_methods[] = {
  203         /* Device interface */
  204         DEVMETHOD(device_identify, octusb_octeon_identify),
  205         DEVMETHOD(device_probe, octusb_octeon_probe),
  206         DEVMETHOD(device_attach, octusb_octeon_attach),
  207         DEVMETHOD(device_detach, octusb_octeon_detach),
  208         DEVMETHOD(device_resume, bus_generic_resume),
  209         DEVMETHOD(device_suspend, bus_generic_suspend),
  210         DEVMETHOD(device_shutdown, bus_generic_shutdown),
  211 
  212         DEVMETHOD_END
  213 };
  214 
  215 static driver_t octusb_octeon_driver = {
  216         .name = "octusb",
  217         .methods = octusb_octeon_methods,
  218         .size = sizeof(struct octusb_octeon_softc),
  219 };
  220 
  221 static devclass_t octusb_octeon_devclass;
  222 
  223 DRIVER_MODULE(octusb, ciu, octusb_octeon_driver, octusb_octeon_devclass, 0, 0);

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FreeBSD/Linux Kernel Cross Reference sys/mips/cavium/usb/octusb_octeon.c

FreeBSD/Linux Kernel Cross Reference
sys/mips/cavium/usb/octusb_octeon.c