FreeBSD/Linux Kernel Cross Reference
sys/dev/adb/adb_bt.c

     /*      $NetBSD: adb_bt.c,v 1.5 2008/05/15 19:19:50 macallan Exp $ */
     
     /*-
      * Copyright (c) 2006 Michael Lorenz
      * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: adb_bt.c,v 1.5 2008/05/15 19:19:50 macallan Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/device.h>
    #include <sys/proc.h>
    
    #include <machine/autoconf.h>
    #include <machine/adbsys.h>
    #include <machine/keyboard.h>
    
    #include <dev/adb/adbvar.h>
    
    #include "opt_wsdisplay_compat.h"
    #include "adbdebug.h"
    
    #ifdef ADBBT_DEBUG
    #define DPRINTF printf
    #else
    #define DPRINTF while (0) printf
    #endif
    
    #define BT_VOL_UP       0x06
    #define BT_VOL_DOWN     0x07
    #define BT_VOL_MUTE     0x08
    #define BT_BRT_UP       0x09
    #define BT_BRT_DOWN     0x0a
    #define BT_EJECT        0x0b
    #define BT_F7           0x0c
    #define BT_NUMLOCK      0x7f
    
    static int adbbt_match(device_t, cfdata_t, void *);
    static void adbbt_attach(device_t, device_t, void *);
    
    struct adbbt_softc {
            device_t sc_dev;
            struct adb_device *sc_adbdev;
            struct adb_bus_accessops *sc_ops;
            int sc_msg_len;
            int sc_event;
            uint8_t sc_buffer[16];
            uint8_t sc_us;
    };      
    
    /* Driver definition. */
    CFATTACH_DECL_NEW(adbbt, sizeof(struct adbbt_softc),
        adbbt_match, adbbt_attach, NULL, NULL);
    
    extern struct cfdriver adbbt_cd;
    
    static void adbbt_handler(void *, int, uint8_t *);
    
    static int
    adbbt_match(device_t parent, cfdata_t cf, void *aux)
    {
            struct adb_attach_args *aaa = aux;
    
            if ((aaa->dev->original_addr == ADBADDR_MISC) &&
                (aaa->dev->handler_id == 0x1f))
                    return 100;
            else
                    return 0;
    }
    
    static void
    adbbt_attach(device_t parent, device_t self, void *aux)
    {
            struct adbbt_softc *sc = device_private(self);
            struct adb_attach_args *aaa = aux;
   
           sc->sc_dev = self;
           sc->sc_ops = aaa->ops;
           sc->sc_adbdev = aaa->dev;
           sc->sc_adbdev->cookie = sc;
           sc->sc_adbdev->handler = adbbt_handler;
           sc->sc_us = ADBTALK(sc->sc_adbdev->current_addr, 0);
   
           sc->sc_msg_len = 0;
   
           printf(" addr %d: button device\n", sc->sc_adbdev->current_addr);
   }
   
   static void
   adbbt_handler(void *cookie, int len, uint8_t *data)
   {
           /* struct adbbt_softc *sc = cookie; */
           uint8_t k, scancode;
   
   #ifdef ADBBT_DEBUG
           int i;
           printf("%s: %02x - ", device_xname(&sc->sc_dev), sc->sc_us);
           for (i = 0; i < len; i++) {
                   printf(" %02x", data[i]);
           }
           printf("\n");
   #endif
           k = data[2];
           scancode = ADBK_KEYVAL(k);
           if ((scancode < 6) || (scancode > 0x0c))
                   return;
   
           if (ADBK_PRESS(k)) {
   
                   switch (scancode) {
                           case BT_VOL_UP:
                                   pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP);
                                   break;
                           case BT_VOL_DOWN:
                                   pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN);
                                   break;
                           case BT_VOL_MUTE:
                                   pmf_event_inject(NULL, 
                                       PMFE_AUDIO_VOLUME_TOGGLE);
                                   break;
                           case BT_BRT_UP:
                                   pmf_event_inject(NULL, 
                                       PMFE_DISPLAY_BRIGHTNESS_UP);
                                   break;
                           case BT_BRT_DOWN:
                                   pmf_event_inject(NULL, 
                                       PMFE_DISPLAY_BRIGHTNESS_DOWN);
                                   break;
                   }
           }
   }

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