FreeBSD/Linux Kernel Cross Reference
sys/powerpc/psim/uart_iobus.c

     /*-
      * SPDX-License-Identifier: BSD-3-Clause
      *
      * Copyright 2002 by Peter Grehan. 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.
     * 3. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
     *
     * $FreeBSD$
     */
    
    /*
     * PSIM local bus 16550
     */
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/bus.h>
    #include <sys/conf.h>
    #include <sys/kernel.h>
    #include <sys/lock.h>
    #include <sys/malloc.h>
    #include <sys/mutex.h>
    #include <sys/module.h>
    #include <machine/bus.h>
    #include <sys/timepps.h>
    
    #include <dev/ofw/openfirm.h>
    #include <powerpc/psim/iobusvar.h>
    
    #include <dev/uart/uart.h>
    #include <dev/uart/uart_bus.h>
    
    static int uart_iobus_probe(device_t dev);
    
    static device_method_t uart_iobus_methods[] = {
            /* Device interface */
            DEVMETHOD(device_probe,         uart_iobus_probe),
            DEVMETHOD(device_attach,        uart_bus_attach),
            DEVMETHOD(device_detach,        uart_bus_detach),
            { 0, 0 }
    };
    
    static driver_t uart_iobus_driver = {
            uart_driver_name,
            uart_iobus_methods,
            sizeof(struct uart_softc),
    };
    
    static int
    uart_iobus_probe(device_t dev)
    {
            struct uart_softc *sc;
            char *type;
    
            type = iobus_get_name(dev);
            if (strncmp(type, "com", 3) != 0)
                    return (ENXIO);
    
            sc = device_get_softc(dev);
            sc->sc_class = &uart_ns8250_class;
    
            device_set_desc(dev, "PSIM serial port");
            return (uart_bus_probe(dev, 0, 0, 0, 0, 0, 0));
    }
    
    DRIVER_MODULE(uart, iobus, uart_iobus_driver, 0, 0);

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