octusb_octeon.c

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