firmware/drivers/audio/imx233-codec.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2011 by Amaury Pouly
  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 "config.h"
  22 #include "system.h"
  23 #include "audiohw.h"
  24 #include "audio.h"
  25 #include "audioout-imx233.h"
  26 #include "audioin-imx233.h"
  27
  28 const struct sound_settings_info audiohw_settings[] =
  29 {
  30     /* i.MX233 has half dB steps */
  31     [SOUND_VOLUME]        = {"dB", 0,  5, VOLUME_MIN / 10,   VOLUME_MAX / 10, -25},
  32     /* HAVE_SW_TONE_CONTROLS */
  33     [SOUND_BASS]          = {"dB", 0,  1, -24,  24,   0},
  34     [SOUND_TREBLE]        = {"dB", 0,  1, -24,  24,   0},
  35     [SOUND_BALANCE]       = {"%",  0,  1,-100, 100,   0},
  36     [SOUND_CHANNELS]      = {"",   0,  1,   0,   5,   0},
  37     [SOUND_STEREO_WIDTH]  = {"%",  0,  5,   0, 250, 100},
  38 #ifdef HAVE_RECORDING
  39     [SOUND_LEFT_GAIN]     = {"dB", 1,  1,   0,  31,  23},
  40     [SOUND_RIGHT_GAIN]    = {"dB", 1,  1,   0,  31,  23},
  41     [SOUND_MIC_GAIN]      = {"dB", 1,  1,   0,   1,   0},
  42 #endif
  43     [SOUND_DEPTH_3D]      = {"%",   0,  1,  0,  15,   0},
  44 };
  45
  46 int tenthdb2master(int tdb)
  47 {
  48     /* Just go from tenth of dB to half to dB */
  49     return tdb / 5;
  50 }
  51
  52 void audiohw_preinit(void)
  53 {
  54     imx233_audioout_preinit();
  55     imx233_audioin_preinit();
  56 }
  57
  58 void audiohw_postinit(void)
  59 {
  60     imx233_audioout_postinit();
  61     imx233_audioin_postinit();
  62 }
  63
  64 void audiohw_close(void)
  65 {
  66     imx233_audioout_close();
  67     imx233_audioin_close();
  68 }
  69
  70 void audiohw_set_headphone_vol(int vol_l, int vol_r)
  71 {
  72     /* Use playback volume if <0 and headphone volume if >0 */
  73     imx233_audioout_set_dac_vol(MIN(0, vol_l), MIN(0, vol_r));
  74     imx233_audioout_set_hp_vol(MAX(0, vol_l), MAX(0, vol_r));
  75 }
  76
  77 void audiohw_set_frequency(int fsel)
  78 {
  79     imx233_audioout_set_freq(fsel);
  80 }
  81
  82 void audiohw_set_recvol(int left, int right, int type)
  83 {
  84     (void) left;
  85     (void) right;
  86     (void) type;
  87 }
  88
  89 void audiohw_set_depth_3d(int val)
  90 {
  91     (void) val;
  92 }