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/dev/adb/adb_bt.c

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    1 /*      $NetBSD: adb_bt.c,v 1.5 2008/05/15 19:19:50 macallan Exp $ */
    2 
    3 /*-
    4  * Copyright (c) 2006 Michael Lorenz
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   26  * POSSIBILITY OF SUCH DAMAGE.
   27  */
   28 
   29 #include <sys/cdefs.h>
   30 __KERNEL_RCSID(0, "$NetBSD: adb_bt.c,v 1.5 2008/05/15 19:19:50 macallan Exp $");
   31 
   32 #include <sys/param.h>
   33 #include <sys/systm.h>
   34 #include <sys/kernel.h>
   35 #include <sys/device.h>
   36 #include <sys/proc.h>
   37 
   38 #include <machine/autoconf.h>
   39 #include <machine/adbsys.h>
   40 #include <machine/keyboard.h>
   41 
   42 #include <dev/adb/adbvar.h>
   43 
   44 #include "opt_wsdisplay_compat.h"
   45 #include "adbdebug.h"
   46 
   47 #ifdef ADBBT_DEBUG
   48 #define DPRINTF printf
   49 #else
   50 #define DPRINTF while (0) printf
   51 #endif
   52 
   53 #define BT_VOL_UP       0x06
   54 #define BT_VOL_DOWN     0x07
   55 #define BT_VOL_MUTE     0x08
   56 #define BT_BRT_UP       0x09
   57 #define BT_BRT_DOWN     0x0a
   58 #define BT_EJECT        0x0b
   59 #define BT_F7           0x0c
   60 #define BT_NUMLOCK      0x7f
   61 
   62 static int adbbt_match(device_t, cfdata_t, void *);
   63 static void adbbt_attach(device_t, device_t, void *);
   64 
   65 struct adbbt_softc {
   66         device_t sc_dev;
   67         struct adb_device *sc_adbdev;
   68         struct adb_bus_accessops *sc_ops;
   69         int sc_msg_len;
   70         int sc_event;
   71         uint8_t sc_buffer[16];
   72         uint8_t sc_us;
   73 };      
   74 
   75 /* Driver definition. */
   76 CFATTACH_DECL_NEW(adbbt, sizeof(struct adbbt_softc),
   77     adbbt_match, adbbt_attach, NULL, NULL);
   78 
   79 extern struct cfdriver adbbt_cd;
   80 
   81 static void adbbt_handler(void *, int, uint8_t *);
   82 
   83 static int
   84 adbbt_match(device_t parent, cfdata_t cf, void *aux)
   85 {
   86         struct adb_attach_args *aaa = aux;
   87 
   88         if ((aaa->dev->original_addr == ADBADDR_MISC) &&
   89             (aaa->dev->handler_id == 0x1f))
   90                 return 100;
   91         else
   92                 return 0;
   93 }
   94 
   95 static void
   96 adbbt_attach(device_t parent, device_t self, void *aux)
   97 {
   98         struct adbbt_softc *sc = device_private(self);
   99         struct adb_attach_args *aaa = aux;
  100 
  101         sc->sc_dev = self;
  102         sc->sc_ops = aaa->ops;
  103         sc->sc_adbdev = aaa->dev;
  104         sc->sc_adbdev->cookie = sc;
  105         sc->sc_adbdev->handler = adbbt_handler;
  106         sc->sc_us = ADBTALK(sc->sc_adbdev->current_addr, 0);
  107 
  108         sc->sc_msg_len = 0;
  109 
  110         printf(" addr %d: button device\n", sc->sc_adbdev->current_addr);
  111 }
  112 
  113 static void
  114 adbbt_handler(void *cookie, int len, uint8_t *data)
  115 {
  116         /* struct adbbt_softc *sc = cookie; */
  117         uint8_t k, scancode;
  118 
  119 #ifdef ADBBT_DEBUG
  120         int i;
  121         printf("%s: %02x - ", device_xname(&sc->sc_dev), sc->sc_us);
  122         for (i = 0; i < len; i++) {
  123                 printf(" %02x", data[i]);
  124         }
  125         printf("\n");
  126 #endif
  127         k = data[2];
  128         scancode = ADBK_KEYVAL(k);
  129         if ((scancode < 6) || (scancode > 0x0c))
  130                 return;
  131 
  132         if (ADBK_PRESS(k)) {
  133 
  134                 switch (scancode) {
  135                         case BT_VOL_UP:
  136                                 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP);
  137                                 break;
  138                         case BT_VOL_DOWN:
  139                                 pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN);
  140                                 break;
  141                         case BT_VOL_MUTE:
  142                                 pmf_event_inject(NULL, 
  143                                     PMFE_AUDIO_VOLUME_TOGGLE);
  144                                 break;
  145                         case BT_BRT_UP:
  146                                 pmf_event_inject(NULL, 
  147                                     PMFE_DISPLAY_BRIGHTNESS_UP);
  148                                 break;
  149                         case BT_BRT_DOWN:
  150                                 pmf_event_inject(NULL, 
  151                                     PMFE_DISPLAY_BRIGHTNESS_DOWN);
  152                                 break;
  153                 }
  154         }
  155 }

Cache object: 9169c70213c960fdca0ec8f94a647c84


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