firmware/target/arm/tcc780x/cowond2/audio-cowond2.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2007 by Michael Sevakis
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19 #include "system.h"
  20 #include "cpu.h"
  21 #include "audio.h"
  22 #include "sound.h"
  23
  24 int audio_channels = 2;
  25 int audio_output_source = AUDIO_SRC_PLAYBACK;
  26
  27 void audio_set_output_source(int source)
  28 {
  29     int oldmode = set_fiq_status(FIQ_DISABLED);
  30
  31     if ((unsigned)source >= AUDIO_NUM_SOURCES)
  32         source = AUDIO_SRC_PLAYBACK;
  33
  34     audio_output_source = source;
  35
  36     /*if (source != AUDIO_SRC_PLAYBACK)
  37         IISCONFIG |= (1 << 29);*/
  38
  39     set_fiq_status(oldmode);
  40 }
  41
  42 void audio_input_mux(int source, unsigned flags)
  43 {
  44     static int last_source = AUDIO_SRC_PLAYBACK;
  45     static bool last_recording = false;
  46     bool recording = flags & SRCF_RECORDING;
  47
  48     switch (source)
  49     {
  50         default:                        /* playback - no recording */
  51             source = AUDIO_SRC_PLAYBACK;
  52         case AUDIO_SRC_PLAYBACK:
  53             audio_channels = 2;
  54             if (source != last_source)
  55             {
  56                 /*audiohw_set_monitor(false);
  57                 audiohw_disable_recording();*/
  58             }
  59             break;
  60
  61         case AUDIO_SRC_MIC:             /* recording only */
  62             audio_channels = 1;
  63             if (source != last_source)
  64             {
  65                 /*audiohw_set_monitor(false);
  66                 audiohw_enable_recording(true);  /. source mic */
  67             }
  68             break;
  69
  70         case AUDIO_SRC_FMRADIO:         /* recording and playback */
  71             audio_channels = 2;
  72
  73             if (source == last_source && recording == last_recording)
  74                 break;
  75
  76             last_recording = recording;
  77
  78             if (recording)
  79             {
  80                 /*audiohw_set_monitor(false);
  81                 audiohw_enable_recording(false);*/
  82             }
  83             else
  84             {
  85                 /*audiohw_disable_recording();
  86                 audiohw_set_monitor(true); /. line 1 analog audio path */
  87             }
  88             break;
  89     } /* end switch */
  90
  91     last_source = source;
  92 } /* audio_input_mux */