firmware/drivers/audio/mas35xx.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id: wm8975.c 13453 2007-05-20 23:10:15Z christian $
   9  *
  10  * Driver for MAS35xx audio codec
  11  *
  12  *
  13  * Copyright (c) 2007 by Christian Gmeiner
  14  *
  15  * All files in this archive are subject to the GNU General Public License.
  16  * See the file COPYING in the source tree root for full license agreement.
  17  *
  18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  19  * KIND, either express or implied.
  20  *
  21  ****************************************************************************/
  22
  23 #include "config.h"
  24 #include "audiohw.h"
  25 #include "mas.h"
  26
  27 const struct sound_settings_info audiohw_settings[] = {
  28 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
  29     [SOUND_VOLUME]        = {"dB", 0,  1,-100,  12, -25},
  30     [SOUND_BASS]          = {"dB", 0,  1, -12,  12,   6},
  31     [SOUND_TREBLE]        = {"dB", 0,  1, -12,  12,   6},
  32 #else /* MAS3507D */
  33     [SOUND_VOLUME]        = {"dB", 0,  1, -78,  18, -18},
  34     [SOUND_BASS]          = {"dB", 0,  1, -15,  15,   7},
  35     [SOUND_TREBLE]        = {"dB", 0,  1, -15,  15,   7},
  36 #endif
  37     [SOUND_BALANCE]       = {"%",  0,  1,-100, 100,   0},
  38     [SOUND_CHANNELS]      = {"",   0,  1,   0,   5,   0},
  39     [SOUND_STEREO_WIDTH]  = {"%",  0,  5,   0, 250, 100},
  40 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
  41     [SOUND_LOUDNESS]      = {"dB", 0,  1,   0,  17,   0},
  42     [SOUND_AVC]           = {"",   0,  1,  -1,   4,   0},
  43     [SOUND_MDB_STRENGTH]  = {"dB", 0,  1,   0, 127,  48},
  44     [SOUND_MDB_HARMONICS] = {"%",  0,  1,   0, 100,  50},
  45     [SOUND_MDB_CENTER]    = {"Hz", 0, 10,  20, 300,  60},
  46     [SOUND_MDB_SHAPE]     = {"Hz", 0, 10,  50, 300,  90},
  47     [SOUND_MDB_ENABLE]    = {"",   0,  1,   0,   1,   0},
  48     [SOUND_SUPERBASS]     = {"",   0,  1,   0,   1,   0},
  49 #endif
  50 #if CONFIG_CODEC == MAS3587F
  51     [SOUND_LEFT_GAIN]     = {"dB", 1,  1,   0,  15,   8},
  52     [SOUND_RIGHT_GAIN]    = {"dB", 1,  1,   0,  15,   8},
  53     [SOUND_MIC_GAIN]      = {"dB", 1,  1,   0,  15,   2},
  54 #endif
  55 };
  56
  57
  58 int channel_configuration = SOUND_CHAN_STEREO;
  59 int stereo_width = 100;
  60
  61
  62 static void set_channel_config(void)
  63 {
  64     /* default values: stereo */
  65     unsigned long val_ll = 0x80000;
  66     unsigned long val_lr = 0;
  67     unsigned long val_rl = 0;
  68     unsigned long val_rr = 0x80000;
  69
  70     switch(channel_configuration)
  71     {
  72         /* case SOUND_CHAN_STEREO unnecessary */
  73
  74         case SOUND_CHAN_MONO:
  75             val_ll = 0xc0000;
  76             val_lr = 0xc0000;
  77             val_rl = 0xc0000;
  78             val_rr = 0xc0000;
  79             break;
  80
  81         case SOUND_CHAN_CUSTOM:
  82             {
  83                 /* fixed point variables (matching MAS internal format)
  84                    integer part: upper 13 bits (inlcuding sign)
  85                    fractional part: lower 19 bits */
  86                 long fp_width, fp_straight, fp_cross;
  87
  88                 fp_width = (stereo_width << 19) / 100;
  89                 if (stereo_width <= 100)
  90                 {
  91                     fp_straight = - ((1<<19) + fp_width) / 2;
  92                     fp_cross = fp_straight + fp_width;
  93                 }
  94                 else
  95                 {
  96                     /* straight = - (1 + width) / (2 * width) */
  97                     fp_straight = - ((((1<<19) + fp_width) / (fp_width >> 9)) << 9);
  98                     fp_cross = (1<<19) + fp_straight;
  99                 }
 100                 val_ll = val_rr = fp_straight & 0xfffff;
 101                 val_lr = val_rl = fp_cross & 0xfffff;
 102             }
 103             break;
 104
 105         case SOUND_CHAN_MONO_LEFT:
 106             val_ll = 0x80000;
 107             val_lr = 0x80000;
 108             val_rl = 0;
 109             val_rr = 0;
 110             break;
 111
 112         case SOUND_CHAN_MONO_RIGHT:
 113             val_ll = 0;
 114             val_lr = 0;
 115             val_rl = 0x80000;
 116             val_rr = 0x80000;
 117             break;
 118
 119         case SOUND_CHAN_KARAOKE:
 120             val_ll = 0xc0000;
 121             val_lr = 0x40000;
 122             val_rl = 0x40000;
 123             val_rr = 0xc0000;
 124             break;
 125     }
 126
 127 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 128     mas_writemem(MAS_BANK_D0, MAS_D0_OUT_LL, &val_ll, 1); /* LL */
 129     mas_writemem(MAS_BANK_D0, MAS_D0_OUT_LR, &val_lr, 1); /* LR */
 130     mas_writemem(MAS_BANK_D0, MAS_D0_OUT_RL, &val_rl, 1); /* RL */
 131     mas_writemem(MAS_BANK_D0, MAS_D0_OUT_RR, &val_rr, 1); /* RR */
 132 #elif CONFIG_CODEC == MAS3507D
 133     mas_writemem(MAS_BANK_D1, 0x7f8, &val_ll, 1); /* LL */
 134     mas_writemem(MAS_BANK_D1, 0x7f9, &val_lr, 1); /* LR */
 135     mas_writemem(MAS_BANK_D1, 0x7fa, &val_rl, 1); /* RL */
 136     mas_writemem(MAS_BANK_D1, 0x7fb, &val_rr, 1); /* RR */
 137 #endif
 138 }
 139
 140 void audiohw_set_channel(int val)
 141 {
 142     channel_configuration = val;
 143     set_channel_config();
 144 }
 145
 146 void audiohw_set_stereo_width(int val)
 147 {
 148     stereo_width = val;
 149     if (channel_configuration == SOUND_CHAN_CUSTOM) {
 150         set_channel_config();
 151     }
 152 }
 153
 154 void audiohw_set_bass(int val)
 155 {
 156 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 157     unsigned tmp = ((unsigned)(val * 8) & 0xff) << 8;
 158     mas_codec_writereg(0x14, tmp);
 159 #elif CONFIG_CODEC == MAS3507D
 160     mas_writereg(MAS_REG_KBASS, bass_table[val+15]);
 161 #endif
 162 }
 163
 164 void audiohw_set_treble(int val)
 165 {
 166 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 167     unsigned tmp = ((unsigned)(val * 8) & 0xff) << 8;
 168     mas_codec_writereg(0x15, tmp);
 169 #elif CONFIG_CODEC == MAS3507D
 170     mas_writereg(MAS_REG_KTREBLE, treble_table[val+15]);
 171 #endif
 172 }