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 #include "hda_patch.h"
  31
  32 struct atihdmi_spec {
  33         struct hda_multi_out multiout;
  34
  35         struct hda_pcm pcm_rec;
  36 };
  37
  38 static struct hda_verb atihdmi_basic_init[] = {
  39         /* enable digital output on pin widget */
  40         { 0x03, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
  41         {} /* terminator */
  42 };
  43
  44 /*
  45  * Controls
  46  */
  47 static int atihdmi_build_controls(struct hda_codec *codec)
  48 {
  49         struct atihdmi_spec *spec = codec->spec;
  50         int err;
  51
  52         err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
  53         if (err < 0)
  54                 return err;
  55
  56         return 0;
  57 }
  58
  59 static int atihdmi_init(struct hda_codec *codec)
  60 {
  61         snd_hda_sequence_write(codec, atihdmi_basic_init);
  62         /* SI codec requires to unmute the pin */
  63         if (get_wcaps(codec, 0x03) & AC_WCAP_OUT_AMP)
  64                 snd_hda_codec_write(codec, 0x03, 0, AC_VERB_SET_AMP_GAIN_MUTE,
  65                                     AMP_OUT_UNMUTE);
  66         return 0;
  67 }
  68
  69 /*
  70  * Digital out
  71  */
  72 static int atihdmi_dig_playback_pcm_open(struct hda_pcm_stream *hinfo,
  73                                      struct hda_codec *codec,
  74                                      struct snd_pcm_substream *substream)
  75 {
  76         struct atihdmi_spec *spec = codec->spec;
  77         return snd_hda_multi_out_dig_open(codec, &spec->multiout);
  78 }
  79
  80 static int atihdmi_dig_playback_pcm_close(struct hda_pcm_stream *hinfo,
  81                                       struct hda_codec *codec,
  82                                       struct snd_pcm_substream *substream)
  83 {
  84         struct atihdmi_spec *spec = codec->spec;
  85         return snd_hda_multi_out_dig_close(codec, &spec->multiout);
  86 }
  87
  88 static int atihdmi_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
  89                                             struct hda_codec *codec,
  90                                             unsigned int stream_tag,
  91                                             unsigned int format,
  92                                             struct snd_pcm_substream *substream)
  93 {
  94         struct atihdmi_spec *spec = codec->spec;
  95         return snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
  96                                              format, substream);
  97 }
  98
  99 static struct hda_pcm_stream atihdmi_pcm_digital_playback = {
 100         .substreams = 1,
 101         .channels_min = 2,
 102         .channels_max = 2,
 103         .nid = 0x2, /* NID to query formats and rates and setup streams */
 104         .ops = {
 105                 .open = atihdmi_dig_playback_pcm_open,
 106                 .close = atihdmi_dig_playback_pcm_close,
 107                 .prepare = atihdmi_dig_playback_pcm_prepare
 108         },
 109 };
 110
 111 static int atihdmi_build_pcms(struct hda_codec *codec)
 112 {
 113         struct atihdmi_spec *spec = codec->spec;
 114         struct hda_pcm *info = &spec->pcm_rec;
 115
 116         codec->num_pcms = 1;
 117         codec->pcm_info = info;
 118
 119         info->name = "ATI HDMI";
 120         info->pcm_type = HDA_PCM_TYPE_HDMI;
 121         info->stream[SNDRV_PCM_STREAM_PLAYBACK] = atihdmi_pcm_digital_playback;
 122
 123         return 0;
 124 }
 125
 126 static void atihdmi_free(struct hda_codec *codec)
 127 {
 128         kfree(codec->spec);
 129 }
 130
 131 static struct hda_codec_ops atihdmi_patch_ops = {
 132         .build_controls = atihdmi_build_controls,
 133         .build_pcms = atihdmi_build_pcms,
 134         .init = atihdmi_init,
 135         .free = atihdmi_free,
 136 };
 137
 138 static int patch_atihdmi(struct hda_codec *codec)
 139 {
 140         struct atihdmi_spec *spec;
 141
 142         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
 143         if (spec == NULL)
 144                 return -ENOMEM;
 145
 146         codec->spec = spec;
 147
 148         spec->multiout.num_dacs = 0;      /* no analog */
 149         spec->multiout.max_channels = 2;
 150         spec->multiout.dig_out_nid = 0x2; /* NID for copying analog to digital,
 151                                            * seems to be unused in pure-digital
 152                                            * case. */
 153
 154         codec->patch_ops = atihdmi_patch_ops;
 155
 156         return 0;
 157 }
 158
 159 /*
 160  * patch entries
 161  */
 162 struct hda_codec_preset snd_hda_preset_atihdmi[] = {
 163         { .id = 0x1002793c, .name = "ATI RS600 HDMI", .patch = patch_atihdmi },
 164         { .id = 0x10027919, .name = "ATI RS600 HDMI", .patch = patch_atihdmi },
 165         { .id = 0x1002791a, .name = "ATI RS690/780 HDMI", .patch = patch_atihdmi },
 166         { .id = 0x1002aa01, .name = "ATI R6xx HDMI", .patch = patch_atihdmi },
 167         { .id = 0x10951392, .name = "SiI1392 HDMI", .patch = patch_atihdmi },
 168         { .id = 0x17e80047, .name = "Chrontel HDMI",  .patch = patch_atihdmi },
 169         {} /* terminator */
 170 };