FreeBSD/Linux Kernel Cross Reference
sys/isa/atkbd_isa.c

     /*-
      * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
      * 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 as
     *    the first lines of this file unmodified.
     * 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 AUTHORS ``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 AUTHORS 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.
     *
     * $FreeBSD$
     */
    
    #include "atkbd.h"
    #include "opt_kbd.h"
    
    #if NATKBD > 0
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/conf.h>
    #include <sys/tty.h>
    #include <sys/bus.h>
    #include <sys/rman.h>
    
    #include <machine/resource.h>
    
    #include <dev/kbd/kbdreg.h>
    #include <dev/kbd/atkbdreg.h>
    #include <dev/kbd/atkbdcreg.h>
    
    #include <isa/isareg.h>
    #include <isa/isavar.h>
    
    devclass_t      atkbd_devclass;
    
    static int      atkbdprobe(device_t dev);
    static int      atkbdattach(device_t dev);
    static void     atkbd_isa_intr(void *arg);
    
    static device_method_t atkbd_methods[] = {
            DEVMETHOD(device_probe,         atkbdprobe),
            DEVMETHOD(device_attach,        atkbdattach),
            { 0, 0 }
    };
    
    static driver_t atkbd_driver = {
            ATKBD_DRIVER_NAME,
            atkbd_methods,
            DRIVER_TYPE_TTY,
            1,
    };
    
    static int
    atkbdprobe(device_t dev)
    {
            u_long port;
            u_long irq;
            u_long flags;
    
            device_set_desc(dev, "AT Keyboard");
    
            /* obtain parameters */
            BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_PORT, &port);
            BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_IRQ, &irq);
            BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_FLAGS, &flags);
    
            /* probe the device */
            return atkbd_probe_unit(device_get_unit(dev), port, irq, flags);
    }
    
    static int
    atkbdattach(device_t dev)
    {
            keyboard_t *kbd;
            u_long port;
            u_long irq;
            u_long flags;
            struct resource *res;
            void *ih;
            int zero = 0;
            int error;
    
           BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_PORT, &port);
           BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_IRQ, &irq);
           BUS_READ_IVAR(device_get_parent(dev), dev, KBDC_IVAR_FLAGS, &flags);
   
           error = atkbd_attach_unit(device_get_unit(dev), &kbd, port, irq, flags);
           if (error)
                   return error;
   
           /* declare our interrupt handler */
           res = bus_alloc_resource(dev, SYS_RES_IRQ, &zero, irq, irq, 1,
                                    RF_SHAREABLE | RF_ACTIVE);
           BUS_SETUP_INTR(device_get_parent(dev), dev, res, atkbd_isa_intr, kbd,
                          &ih);
   
           return 0;
   }
   
   static void
   atkbd_isa_intr(void *arg)
   {
           keyboard_t *kbd;
   
           kbd = (keyboard_t *)arg;
           (*kbdsw[kbd->kb_index]->intr)(kbd, NULL);
   }
   
   DRIVER_MODULE(atkbd, atkbdc, atkbd_driver, atkbd_devclass, 0, 0);
   
   #endif /* NATKBD > 0 */

Cache object: d10a97cd739f3707e31217e1fe73bcbc