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  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include "system.h"
  22 #include "cpu.h"
  23 #include "audio.h"
  24 #include "sound.h"
  25
  26 int audio_channels = 2;
  27 int audio_output_source = AUDIO_SRC_PLAYBACK;
  28
  29 void audio_set_output_source(int source)
  30 {
  31     int oldmode = set_fiq_status(FIQ_DISABLED);
  32
  33     if ((unsigned)source >= AUDIO_NUM_SOURCES)
  34         source = AUDIO_SRC_PLAYBACK;
  35
  36     audio_output_source = source;
  37
  38     /*if (source != AUDIO_SRC_PLAYBACK)
  39         IISCONFIG |= (1 << 29);*/
  40
  41     set_fiq_status(oldmode);
  42 }
  43
  44 void audio_input_mux(int source, unsigned flags)
  45 {
  46     static int last_source = AUDIO_SRC_PLAYBACK;
  47     static bool last_recording = false;
  48     bool recording = flags & SRCF_RECORDING;
  49
  50     switch (source)
  51     {
  52         default:                        /* playback - no recording */
  53             source = AUDIO_SRC_PLAYBACK;
  54         case AUDIO_SRC_PLAYBACK:
  55             audio_channels = 2;
  56             if (source != last_source)
  57             {
  58                 /*audiohw_set_monitor(false);
  59                 audiohw_disable_recording();*/
  60                 audiohw_set_aux_vol(0,0);
  61             }
  62             break;
  63
  64         case AUDIO_SRC_MIC:             /* recording only */
  65             audio_channels = 1;
  66             if (source != last_source)
  67             {
  68                 /*audiohw_set_monitor(false);
  69                 audiohw_enable_recording(true);  /. source mic */
  70             }
  71             break;
  72
  73         case AUDIO_SRC_FMRADIO:         /* recording and playback */
  74             audio_channels = 2;
  75
  76             if (source == last_source && recording == last_recording)
  77                 break;
  78
  79             last_recording = recording;
  80
  81             if (recording)
  82             {
  83                 /*audiohw_set_monitor(false);
  84                 audiohw_enable_recording(false);*/
  85             }
  86             else
  87             {
  88                 /*audiohw_disable_recording();
  89                 audiohw_set_monitor(true); /. line 1 analog audio path */
  90                 audiohw_set_aux_vol(7,7);
  91             }
  92             break;
  93     } /* end switch */
  94
  95     last_source = source;
  96 } /* audio_input_mux */