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 #elif CONFIG_CODEC == 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     int bank;
  72
  73     switch(channel_configuration)
  74     {
  75         /* case SOUND_CHAN_STEREO unnecessary */
  76
  77         case SOUND_CHAN_MONO:
  78             val_ll = 0xc0000;
  79             val_lr = 0xc0000;
  80             val_rl = 0xc0000;
  81             val_rr = 0xc0000;
  82             break;
  83
  84         case SOUND_CHAN_CUSTOM:
  85             {
  86                 /* fixed point variables (matching MAS internal format)
  87                    integer part: upper 13 bits (inlcuding sign)
  88                    fractional part: lower 19 bits */
  89                 long fp_width, fp_straight, fp_cross;
  90
  91                 fp_width = (stereo_width << 19) / 100;
  92                 if (stereo_width <= 100)
  93                 {
  94                     fp_straight = - ((1<<19) + fp_width) / 2;
  95                     fp_cross = fp_straight + fp_width;
  96                 }
  97                 else
  98                 {
  99                     /* straight = - (1 + width) / (2 * width) */
 100                     fp_straight = - ((((1<<19) + fp_width) / (fp_width >> 9)) << 9);
 101                     fp_cross = (1<<19) + fp_straight;
 102                 }
 103                 val_ll = val_rr = fp_straight & 0xfffff;
 104                 val_lr = val_rl = fp_cross & 0xfffff;
 105             }
 106             break;
 107
 108         case SOUND_CHAN_MONO_LEFT:
 109             val_ll = 0x80000;
 110             val_lr = 0x80000;
 111             val_rl = 0;
 112             val_rr = 0;
 113             break;
 114
 115         case SOUND_CHAN_MONO_RIGHT:
 116             val_ll = 0;
 117             val_lr = 0;
 118             val_rl = 0x80000;
 119             val_rr = 0x80000;
 120             break;
 121
 122         case SOUND_CHAN_KARAOKE:
 123             val_ll = 0xc0000;
 124             val_lr = 0x40000;
 125             val_rl = 0x40000;
 126             val_rr = 0xc0000;
 127             break;
 128     }
 129
 130 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 131     bank = MAS_BANK_D0;
 132 #elif CONFIG_CODEC == MAS3507D
 133     bank = MAS_BANK_D1;
 134 #endif
 135
 136     mas_writemem(bank, MAS_D0_OUT_LL, &val_ll, 1); /* LL */
 137     mas_writemem(bank, MAS_D0_OUT_LR, &val_lr, 1); /* LR */
 138     mas_writemem(bank, MAS_D0_OUT_RL, &val_rl, 1); /* RL */
 139     mas_writemem(bank, MAS_D0_OUT_RR, &val_rr, 1); /* RR */
 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(MAS_REG_KBASS, 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(MAS_REG_KTREBLE, 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(MAS_REG_VOLUME_CONTROL, tmp);
 187 }
 188
 189 void audiohw_set_balance(int val) {
 190     unsigned tmp = ((unsigned)(val * 127 / 100) & 0xff) << 8;
 191     mas_codec_writereg(MAS_REG_BALANCE, tmp);
 192 }
 193 #endif