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/sound/pcm/channel_if.m

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    1 #-
    2 # KOBJ
    3 #
    4 # Copyright (c) 2000 Cameron Grant <cg@freebsd.org>
    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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26 # SUCH DAMAGE.
   27 #
   28 # $FreeBSD$
   29 #
   30 
   31 #include <dev/sound/pcm/sound.h>
   32 
   33 INTERFACE channel;
   34 
   35 CODE {
   36 
   37         static int
   38         channel_nosetdir(kobj_t obj, void *data, int dir)
   39         {
   40                 return 0;
   41         }
   42 
   43         static int
   44         channel_noreset(kobj_t obj, void *data)
   45         {
   46                 return 0;
   47         }
   48 
   49         static int
   50         channel_noresetdone(kobj_t obj, void *data)
   51         {
   52                 return 0;
   53         }
   54 
   55         static int
   56         channel_nofree(kobj_t obj, void *data)
   57         {
   58                 return 1;
   59         }
   60 
   61         static u_int32_t
   62         channel_nogetptr(kobj_t obj, void *data)
   63         {
   64                 return 0;
   65         }
   66 
   67         static int
   68         channel_nonotify(kobj_t obj, void *data, u_int32_t changed)
   69         {
   70                 return 0;
   71         }
   72 
   73 };
   74 
   75 METHOD void* init {
   76         kobj_t obj;
   77         void *devinfo;
   78         struct snd_dbuf *b;
   79         struct pcm_channel *c;
   80         int dir;
   81 };
   82 
   83 METHOD int free {
   84         kobj_t obj;
   85         void *data;
   86 } DEFAULT channel_nofree;
   87 
   88 METHOD int reset {
   89         kobj_t obj;
   90         void *data;
   91 } DEFAULT channel_noreset;
   92 
   93 METHOD int resetdone {
   94         kobj_t obj;
   95         void *data;
   96 } DEFAULT channel_noresetdone;
   97 
   98 METHOD int setdir {
   99         kobj_t obj;
  100         void *data;
  101         int dir;
  102 } DEFAULT channel_nosetdir;
  103 
  104 METHOD u_int32_t setformat {
  105         kobj_t obj;
  106         void *data;
  107         u_int32_t format;
  108 };
  109 
  110 METHOD u_int32_t setspeed {
  111         kobj_t obj;
  112         void *data;
  113         u_int32_t speed;
  114 };
  115 
  116 METHOD u_int32_t setblocksize {
  117         kobj_t obj;
  118         void *data;
  119         u_int32_t blocksize;
  120 };
  121 
  122 METHOD int trigger {
  123         kobj_t obj;
  124         void *data;
  125         int go;
  126 };
  127 
  128 METHOD u_int32_t getptr {
  129         kobj_t obj;
  130         void *data;
  131 } DEFAULT channel_nogetptr;
  132 
  133 METHOD struct pcmchan_caps* getcaps {
  134         kobj_t obj;
  135         void *data;
  136 };
  137 
  138 METHOD int notify {
  139         kobj_t obj;
  140         void *data;
  141         u_int32_t changed;
  142 } DEFAULT channel_nonotify;

Cache object: 3ad23393506b802e636a82f0cc520e26


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