text: #include <sys/cdefs.h>
  __FBSDID("$FreeBSD: soc2013/dpl/head/sys/mips/cavium/usb/octusb_octeon.c 233095 2012-03-11 06:17:49Z jmallett $");
  
  /*-
   * 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 <contrib/octeon-sdk/cvmx.h>
  #include <mips/cavium/octeon_irq.h>
  #include <contrib/octeon-sdk/cvmx-usb.h>
  
  #include <mips/cavium/usb/octusb.h>
  
  #define	MEM_RID	0
  
  static device_identify_t octusb_octeon_identify;
  static device_probe_t octusb_octeon_probe;
  static device_attach_t octusb_octeon_attach;
  static device_detach_t octusb_octeon_detach;
  
  struct octusb_octeon_softc {
  	struct octusb_softc sc_dci;	/* must be first */
  };
  
  static void
  octusb_octeon_identify(driver_t *drv, device_t parent)
  {
  	if (octeon_has_feature(OCTEON_FEATURE_USB))
  		BUS_ADD_CHILD(parent, 0, "octusb", 0);
  }
  
  static int
  octusb_octeon_probe(device_t dev)
  {
  	device_set_desc(dev, "Cavium Octeon USB controller");
  	return (0);
  }
  
  static int
  octusb_octeon_attach(device_t dev)
  {
  	struct octusb_octeon_softc *sc = device_get_softc(dev);
  	int err;
  	int rid;
  	int nports;
  	int i;
  
  	/* setup controller interface softc */
  
  	/* initialise some bus fields */
  	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 = OCTUSB_MAX_DEVICES;
  
  	/* get all DMA memory */
  	if (usb_bus_mem_alloc_all(&sc->sc_dci.sc_bus,
  	    USB_GET_DMA_TAG(dev), NULL)) {
  		return (ENOMEM);
  	}
  	nports = cvmx_usb_get_num_ports();
  	if (nports > OCTUSB_MAX_PORTS)
  		panic("octusb: too many USB ports %d", nports);
  	for (i = 0; i < nports; i++) {
  		rid = 0;
  		sc->sc_dci.sc_irq_res[i] =
  		    bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
  			       OCTEON_IRQ_USB0 + i, OCTEON_IRQ_USB0 + i, 1, RF_ACTIVE);
  		if (!(sc->sc_dci.sc_irq_res[i])) {
  			goto error;
  		}
  
  #if (__FreeBSD_version >= 700031)
  		err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res[i], INTR_TYPE_BIO | INTR_MPSAFE,
  		    NULL, (driver_intr_t *)octusb_interrupt, sc, &sc->sc_dci.sc_intr_hdl[i]);
  #else
  		err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res[i], INTR_TYPE_BIO | INTR_MPSAFE,
  		    (driver_intr_t *)octusb_interrupt, sc, &sc->sc_dci.sc_intr_hdl[i]);
  #endif
  		if (err) {
  			sc->sc_dci.sc_intr_hdl[i] = NULL;
  			goto error;
  		}
  	}
  
  	sc->sc_dci.sc_bus.bdev = device_add_child(dev, "usbus", -1);
  	if (!(sc->sc_dci.sc_bus.bdev)) {
  		goto error;
  	}
  	device_set_ivars(sc->sc_dci.sc_bus.bdev, &sc->sc_dci.sc_bus);
  
  
  	err = octusb_init(&sc->sc_dci);
  	if (!err) {
  		err = device_probe_and_attach(sc->sc_dci.sc_bus.bdev);
  	}
  	if (err) {
  		goto error;
  	}
  	return (0);
  
  error:
  	octusb_octeon_detach(dev);
  	return (ENXIO);
  }
  
  static int
  octusb_octeon_detach(device_t dev)
  {
  	struct octusb_octeon_softc *sc = device_get_softc(dev);
  	device_t bdev;
  	int err;
  	int nports;
  	int i;
  
  	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[0] && sc->sc_dci.sc_intr_hdl[0])
  		/*
  	 	 * only call octusb_octeon_uninit() after octusb_octeon_init()
  	 	 */
  		octusb_uninit(&sc->sc_dci);
  
  	nports = cvmx_usb_get_num_ports();
  	if (nports > OCTUSB_MAX_PORTS)
  		panic("octusb: too many USB ports %d", nports);
  	for (i = 0; i < nports; i++) {
  		if (sc->sc_dci.sc_irq_res[0] && sc->sc_dci.sc_intr_hdl[0]) {
  			err = bus_teardown_intr(dev, sc->sc_dci.sc_irq_res[i],
  			    sc->sc_dci.sc_intr_hdl[i]);
  			sc->sc_dci.sc_intr_hdl[i] = NULL;
  		}
  		if (sc->sc_dci.sc_irq_res) {
  			bus_release_resource(dev, SYS_RES_IRQ, 0,
  			    sc->sc_dci.sc_irq_res[i]);
  			sc->sc_dci.sc_irq_res[i] = NULL;
  		}
  	}
  	usb_bus_mem_free_all(&sc->sc_dci.sc_bus, NULL);
  
  	return (0);
  }
  
  static device_method_t octusb_octeon_methods[] = {
  	/* Device interface */
  	DEVMETHOD(device_identify, octusb_octeon_identify),
  	DEVMETHOD(device_probe, octusb_octeon_probe),
  	DEVMETHOD(device_attach, octusb_octeon_attach),
  	DEVMETHOD(device_detach, octusb_octeon_detach),
  	DEVMETHOD(device_resume, bus_generic_resume),
  	DEVMETHOD(device_suspend, bus_generic_suspend),
  	DEVMETHOD(device_shutdown, bus_generic_shutdown),
  
  	DEVMETHOD_END
  };
  
  static driver_t octusb_octeon_driver = {
  	.name = "octusb",
  	.methods = octusb_octeon_methods,
  	.size = sizeof(struct octusb_octeon_softc),
  };
  
  static devclass_t octusb_octeon_devclass;
  
  DRIVER_MODULE(octusb, ciu, octusb_octeon_driver, octusb_octeon_devclass, 0, 0);
  