The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/mips/malta/uart_bus_maltausart.c

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    1 /*-
    2  * Copyright (c) 2006 Wojciech A. Koszek <wkoszek@FreeBSD.org>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * $Id$
   25  */
   26 /*
   27  * Skeleton of this file was based on respective code for ARM
   28  * code written by Olivier Houchard.
   29  */
   30 
   31 #include "opt_uart.h"
   32 
   33 #include <sys/cdefs.h>
   34 __FBSDID("$FreeBSD: releng/8.4/sys/mips/malta/uart_bus_maltausart.c 215938 2010-11-27 12:26:40Z jchandra $");
   35 
   36 #include <sys/param.h>
   37 #include <sys/systm.h>
   38 #include <sys/bus.h>
   39 #include <sys/conf.h>
   40 #include <sys/kernel.h>
   41 #include <sys/module.h>
   42 #include <machine/bus.h>
   43 #include <sys/rman.h>
   44 #include <machine/resource.h>
   45 
   46 #include <dev/pci/pcivar.h>
   47 
   48 #include <dev/uart/uart.h>
   49 #include <dev/uart/uart_bus.h>
   50 #include <dev/uart/uart_cpu.h>
   51 
   52 #include <mips/malta/maltareg.h>
   53 
   54 #include "uart_if.h"
   55 
   56 static int uart_malta_probe(device_t dev);
   57 
   58 extern struct uart_class malta_uart_class;
   59 
   60 static device_method_t uart_malta_methods[] = {
   61         /* Device interface */
   62         DEVMETHOD(device_probe,         uart_malta_probe),
   63         DEVMETHOD(device_attach,        uart_bus_attach),
   64         DEVMETHOD(device_detach,        uart_bus_detach),
   65         { 0, 0 }
   66 };
   67 
   68 static driver_t uart_malta_driver = {
   69         uart_driver_name,
   70         uart_malta_methods,
   71         sizeof(struct uart_softc),
   72 };
   73 
   74 extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs;
   75 static int
   76 uart_malta_probe(device_t dev)
   77 {
   78         struct uart_softc *sc;
   79 
   80         sc = device_get_softc(dev);
   81         sc->sc_sysdev = SLIST_FIRST(&uart_sysdevs);
   82         sc->sc_class = &uart_ns8250_class;
   83         bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas));
   84         sc->sc_sysdev->bas.bst = mips_bus_space_generic;
   85         sc->sc_sysdev->bas.bsh = MIPS_PHYS_TO_KSEG1(MALTA_UART0ADR);
   86         sc->sc_bas.bst = mips_bus_space_generic;
   87         sc->sc_bas.bsh = MIPS_PHYS_TO_KSEG1(MALTA_UART0ADR);
   88         return(uart_bus_probe(dev, 0, 0, 0, 0));
   89 }
   90 
   91 DRIVER_MODULE(uart, obio, uart_malta_driver, uart_devclass, 0, 0);

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