firmware/drivers/audio/mas35xx.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Driver for MAS35xx audio codec
  11  *
  12  *
  13  * Copyright (c) 2007 by Christian Gmeiner
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
  19  *
  20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  21  * KIND, either express or implied.
  22  *
  23  ****************************************************************************/
  24
  25 #include "config.h"
  26 #include "audiohw.h"
  27 #include "mas.h"
  28
  29 const struct sound_settings_info audiohw_settings[] = {
  30 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
  31     [SOUND_VOLUME]        = {"dB", 0,  1,-100,  12, -25},
  32     [SOUND_BASS]          = {"dB", 0,  1, -12,  12,   6},
  33     [SOUND_TREBLE]        = {"dB", 0,  1, -12,  12,   6},
  34 #else /* MAS3507D */
  35     [SOUND_VOLUME]        = {"dB", 0,  1, -78,  18, -18},
  36     [SOUND_BASS]          = {"dB", 0,  1, -15,  15,   7},
  37     [SOUND_TREBLE]        = {"dB", 0,  1, -15,  15,   7},
  38 #endif
  39     [SOUND_BALANCE]       = {"%",  0,  1,-100, 100,   0},
  40     [SOUND_CHANNELS]      = {"",   0,  1,   0,   5,   0},
  41     [SOUND_STEREO_WIDTH]  = {"%",  0,  5,   0, 250, 100},
  42 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
  43     [SOUND_LOUDNESS]      = {"dB", 0,  1,   0,  17,   0},
  44     [SOUND_AVC]           = {"",   0,  1,  -1,   4,   0},
  45     [SOUND_MDB_STRENGTH]  = {"dB", 0,  1,   0, 127,  48},
  46     [SOUND_MDB_HARMONICS] = {"%",  0,  1,   0, 100,  50},
  47     [SOUND_MDB_CENTER]    = {"Hz", 0, 10,  20, 300,  60},
  48     [SOUND_MDB_SHAPE]     = {"Hz", 0, 10,  50, 300,  90},
  49     [SOUND_MDB_ENABLE]    = {"",   0,  1,   0,   1,   0},
  50     [SOUND_SUPERBASS]     = {"",   0,  1,   0,   1,   0},
  51 #endif
  52 #if CONFIG_CODEC == MAS3587F && defined(HAVE_RECORDING)
  53     [SOUND_LEFT_GAIN]     = {"dB", 1,  1,   0,  15,   8},
  54     [SOUND_RIGHT_GAIN]    = {"dB", 1,  1,   0,  15,   8},
  55     [SOUND_MIC_GAIN]      = {"dB", 1,  1,   0,  15,   2},
  56 #endif
  57 };
  58
  59
  60 int channel_configuration = SOUND_CHAN_STEREO;
  61 int stereo_width = 100;
  62
  63
  64 static void set_channel_config(void)
  65 {
  66     /* default values: stereo */
  67     unsigned long val_ll = 0x80000;
  68     unsigned long val_lr = 0;
  69     unsigned long val_rl = 0;
  70     unsigned long val_rr = 0x80000;
  71
  72     switch(channel_configuration)
  73     {
  74         /* case SOUND_CHAN_STEREO unnecessary */
  75
  76         case SOUND_CHAN_MONO:
  77             val_ll = 0xc0000;
  78             val_lr = 0xc0000;
  79             val_rl = 0xc0000;
  80             val_rr = 0xc0000;
  81             break;
  82
  83         case SOUND_CHAN_CUSTOM:
  84             {
  85                 /* fixed point variables (matching MAS internal format)
  86                    integer part: upper 13 bits (inlcuding sign)
  87                    fractional part: lower 19 bits */
  88                 long fp_width, fp_straight, fp_cross;
  89
  90                 fp_width = (stereo_width << 19) / 100;
  91                 if (stereo_width <= 100)
  92                 {
  93                     fp_straight = - ((1<<19) + fp_width) / 2;
  94                     fp_cross = fp_straight + fp_width;
  95                 }
  96                 else
  97                 {
  98                     /* straight = - (1 + width) / (2 * width) */
  99                     fp_straight = - ((((1<<19) + fp_width) / (fp_width >> 9)) << 9);
 100                     fp_cross = (1<<19) + fp_straight;
 101                 }
 102                 val_ll = val_rr = fp_straight & 0xfffff;
 103                 val_lr = val_rl = fp_cross & 0xfffff;
 104             }
 105             break;
 106
 107         case SOUND_CHAN_MONO_LEFT:
 108             val_ll = 0x80000;
 109             val_lr = 0x80000;
 110             val_rl = 0;
 111             val_rr = 0;
 112             break;
 113
 114         case SOUND_CHAN_MONO_RIGHT:
 115             val_ll = 0;
 116             val_lr = 0;
 117             val_rl = 0x80000;
 118             val_rr = 0x80000;
 119             break;
 120
 121         case SOUND_CHAN_KARAOKE:
 122             val_ll = 0xc0000;
 123             val_lr = 0x40000;
 124             val_rl = 0x40000;
 125             val_rr = 0xc0000;
 126             break;
 127     }
 128
 129 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 130     mas_writemem(MAS_BANK_D0, MAS_D0_OUT_LL, &val_ll, 1); /* LL */
 131     mas_writemem(MAS_BANK_D0, MAS_D0_OUT_LR, &val_lr, 1); /* LR */
 132     mas_writemem(MAS_BANK_D0, MAS_D0_OUT_RL, &val_rl, 1); /* RL */
 133     mas_writemem(MAS_BANK_D0, MAS_D0_OUT_RR, &val_rr, 1); /* RR */
 134 #elif CONFIG_CODEC == MAS3507D
 135     mas_writemem(MAS_BANK_D1, 0x7f8, &val_ll, 1); /* LL */
 136     mas_writemem(MAS_BANK_D1, 0x7f9, &val_lr, 1); /* LR */
 137     mas_writemem(MAS_BANK_D1, 0x7fa, &val_rl, 1); /* RL */
 138     mas_writemem(MAS_BANK_D1, 0x7fb, &val_rr, 1); /* RR */
 139 #endif
 140 }
 141
 142 void audiohw_set_channel(int val)
 143 {
 144     channel_configuration = val;
 145     set_channel_config();
 146 }
 147
 148 void audiohw_set_stereo_width(int val)
 149 {
 150     stereo_width = val;
 151     if (channel_configuration == SOUND_CHAN_CUSTOM) {
 152         set_channel_config();
 153     }
 154 }
 155
 156 void audiohw_set_bass(int val)
 157 {
 158 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 159     unsigned tmp = ((unsigned)(val * 8) & 0xff) << 8;
 160     mas_codec_writereg(0x14, tmp);
 161 #elif CONFIG_CODEC == MAS3507D
 162     mas_writereg(MAS_REG_KBASS, bass_table[val+15]);
 163 #endif
 164 }
 165
 166 #if CONFIG_CODEC == MAS3507D
 167 void audiohw_set_prescaler(int val)
 168 {
 169     mas_writereg(MAS_REG_KPRESCALE, prescale_table[val/10]);
 170 }
 171 #endif
 172
 173 void audiohw_set_treble(int val)
 174 {
 175 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 176     unsigned tmp = ((unsigned)(val * 8) & 0xff) << 8;
 177     mas_codec_writereg(0x15, tmp);
 178 #elif CONFIG_CODEC == MAS3507D
 179     mas_writereg(MAS_REG_KTREBLE, treble_table[val+15]);
 180 #endif
 181 }
 182
 183 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 184 void audiohw_set_volume(int val) {
 185     unsigned tmp = ((unsigned)(val + 115) & 0xff) << 8;
 186     mas_codec_writereg(0x10, tmp);
 187 }
 188
 189 void audiohw_set_balance(int val) {
 190     unsigned tmp = ((unsigned)(val * 127 / 100) & 0xff) << 8;
 191     mas_codec_writereg(0x11, tmp);
 192 }
 193 #endif