sound/pci/hda/patch_atihdmi.c

   1 /*
   2  * Universal Interface for Intel High Definition Audio Codec
   3  *
   4  * HD audio interface patch for ATI HDMI codecs
   5  *
   6  * Copyright (c) 2006 ATI Technologies Inc.
   7  *
   8  *
   9  *  This driver is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This driver is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  22  */
  23
  24 #include <linux/init.h>
  25 #include <linux/delay.h>
  26 #include <linux/slab.h>
  27 #include <sound/core.h>
  28 #include "hda_codec.h"
  29 #include "hda_local.h"
  30
  31 struct atihdmi_spec {
  32         struct hda_multi_out multiout;
  33
  34         struct hda_pcm pcm_rec;
  35 };
  36
  37 static struct hda_verb atihdmi_basic_init[] = {
  38         /* enable digital output on pin widget */
  39         { 0x03, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
  40         {} /* terminator */
  41 };
  42
  43 /*
  44  * Controls
  45  */
  46 static int atihdmi_build_controls(struct hda_codec *codec)
  47 {
  48         struct atihdmi_spec *spec = codec->spec;
  49         int err;
  50
  51         err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
  52         if (err < 0)
  53                 return err;
  54
  55         return 0;
  56 }
  57
  58 static int atihdmi_init(struct hda_codec *codec)
  59 {
  60         snd_hda_sequence_write(codec, atihdmi_basic_init);
  61         /* SI codec requires to unmute the pin */
  62         if (get_wcaps(codec, 0x03) & AC_WCAP_OUT_AMP)
  63                 snd_hda_codec_write(codec, 0x03, 0, AC_VERB_SET_AMP_GAIN_MUTE,
  64                                     AMP_OUT_UNMUTE);
  65         return 0;
  66 }
  67
  68 /*
  69  * Digital out
  70  */
  71 static int atihdmi_dig_playback_pcm_open(struct hda_pcm_stream *hinfo,
  72                                      struct hda_codec *codec,
  73                                      struct snd_pcm_substream *substream)
  74 {
  75         struct atihdmi_spec *spec = codec->spec;
  76         return snd_hda_multi_out_dig_open(codec, &spec->multiout);
  77 }
  78
  79 static int atihdmi_dig_playback_pcm_close(struct hda_pcm_stream *hinfo,
  80                                       struct hda_codec *codec,
  81                                       struct snd_pcm_substream *substream)
  82 {
  83         struct atihdmi_spec *spec = codec->spec;
  84         return snd_hda_multi_out_dig_close(codec, &spec->multiout);
  85 }
  86
  87 static int atihdmi_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
  88                                             struct hda_codec *codec,
  89                                             unsigned int stream_tag,
  90                                             unsigned int format,
  91                                             struct snd_pcm_substream *substream)
  92 {
  93         struct atihdmi_spec *spec = codec->spec;
  94         return snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
  95                                              format, substream);
  96 }
  97
  98 static struct hda_pcm_stream atihdmi_pcm_digital_playback = {
  99         .substreams = 1,
 100         .channels_min = 2,
 101         .channels_max = 2,
 102         .nid = 0x2, /* NID to query formats and rates and setup streams */
 103         .ops = {
 104                 .open = atihdmi_dig_playback_pcm_open,
 105                 .close = atihdmi_dig_playback_pcm_close,
 106                 .prepare = atihdmi_dig_playback_pcm_prepare
 107         },
 108 };
 109
 110 static int atihdmi_build_pcms(struct hda_codec *codec)
 111 {
 112         struct atihdmi_spec *spec = codec->spec;
 113         struct hda_pcm *info = &spec->pcm_rec;
 114
 115         codec->num_pcms = 1;
 116         codec->pcm_info = info;
 117
 118         info->name = "ATI HDMI";
 119         info->pcm_type = HDA_PCM_TYPE_HDMI;
 120         info->stream[SNDRV_PCM_STREAM_PLAYBACK] = atihdmi_pcm_digital_playback;
 121
 122         return 0;
 123 }
 124
 125 static void atihdmi_free(struct hda_codec *codec)
 126 {
 127         kfree(codec->spec);
 128 }
 129
 130 static struct hda_codec_ops atihdmi_patch_ops = {
 131         .build_controls = atihdmi_build_controls,
 132         .build_pcms = atihdmi_build_pcms,
 133         .init = atihdmi_init,
 134         .free = atihdmi_free,
 135 };
 136
 137 static int patch_atihdmi(struct hda_codec *codec)
 138 {
 139         struct atihdmi_spec *spec;
 140
 141         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
 142         if (spec == NULL)
 143                 return -ENOMEM;
 144
 145         codec->spec = spec;
 146
 147         spec->multiout.num_dacs = 0;      /* no analog */
 148         spec->multiout.max_channels = 2;
 149         spec->multiout.dig_out_nid = 0x2; /* NID for copying analog to digital,
 150                                            * seems to be unused in pure-digital
 151                                            * case. */
 152
 153         codec->patch_ops = atihdmi_patch_ops;
 154
 155         return 0;
 156 }
 157
 158 /*
 159  * patch entries
 160  */
 161 struct hda_codec_preset snd_hda_preset_atihdmi[] = {
 162         { .id = 0x1002793c, .name = "ATI RS600 HDMI", .patch = patch_atihdmi },
 163         { .id = 0x10027919, .name = "ATI RS600 HDMI", .patch = patch_atihdmi },
 164         { .id = 0x1002791a, .name = "ATI RS690/780 HDMI", .patch = patch_atihdmi },
 165         { .id = 0x1002aa01, .name = "ATI R6xx HDMI", .patch = patch_atihdmi },
 166         { .id = 0x10951392, .name = "SI HDMI", .patch = patch_atihdmi },
 167         {} /* terminator */
 168 };