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   1 /*
   2  *
   3  *  patch_intelhdmi.c - Patch for Intel HDMI codecs
   4  *
   5  *  Copyright(c) 2008 Intel Corporation. All rights reserved.
   6  *
   7  *  Authors:
   8  *                      Jiang Zhe <zhe.jiang@intel.com>
   9  *                      Wu Fengguang <wfg@linux.intel.com>
  10  *
  11  *  Maintained by:
  12  *                      Wu Fengguang <wfg@linux.intel.com>
  13  *
  14  *  This program is free software; you can redistribute it and/or modify it
  15  *  under the terms of the GNU General Public License as published by the Free
  16  *  Software Foundation; either version 2 of the License, or (at your option)
  17  *  any later version.
  18  *
  19  *  This program is distributed in the hope that it will be useful, but
  20  *  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  21  *  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  22  *  for more details.
  23  *
  24  *  You should have received a copy of the GNU General Public License
  25  *  along with this program; if not, write to the Free Software Foundation,
  26  *  Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  27  */
  28
  29 #include <linux/init.h>
  30 #include <linux/delay.h>
  31 #include <linux/slab.h>
  32 #include <sound/core.h>
  33 #include "hda_codec.h"
  34 #include "hda_local.h"
  35
  36 /*
  37  * The HDMI/DisplayPort configuration can be highly dynamic. A graphics device
  38  * could support two independent pipes, each of them can be connected to one or
  39  * more ports (DVI, HDMI or DisplayPort).
  40  *
  41  * The HDA correspondence of pipes/ports are converter/pin nodes.
  42  */
  43 #define MAX_HDMI_CVTS   3
  44 #define MAX_HDMI_PINS   3
  45
  46 #include "patch_hdmi.c"
  47
  48 static char *intel_hdmi_pcm_names[MAX_HDMI_CVTS] = {
  49         "INTEL HDMI 0",
  50         "INTEL HDMI 1",
  51         "INTEL HDMI 2",
  52 };
  53
  54 /*
  55  * HDMI callbacks
  56  */
  57
  58 static int intel_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
  59                                            struct hda_codec *codec,
  60                                            unsigned int stream_tag,
  61                                            unsigned int format,
  62                                            struct snd_pcm_substream *substream)
  63 {
  64         hdmi_set_channel_count(codec, hinfo->nid,
  65                                substream->runtime->channels);
  66
  67         hdmi_setup_audio_infoframe(codec, hinfo->nid, substream);
  68
  69         hdmi_setup_stream(codec, hinfo->nid, stream_tag, format);
  70         return 0;
  71 }
  72
  73 static int intel_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
  74                                            struct hda_codec *codec,
  75                                            struct snd_pcm_substream *substream)
  76 {
  77         return 0;
  78 }
  79
  80 static struct hda_pcm_stream intel_hdmi_pcm_playback = {
  81         .substreams = 1,
  82         .channels_min = 2,
  83         .ops = {
  84                 .prepare = intel_hdmi_playback_pcm_prepare,
  85                 .cleanup = intel_hdmi_playback_pcm_cleanup,
  86         },
  87 };
  88
  89 static int intel_hdmi_build_pcms(struct hda_codec *codec)
  90 {
  91         struct hdmi_spec *spec = codec->spec;
  92         struct hda_pcm *info = spec->pcm_rec;
  93         int i;
  94
  95         codec->num_pcms = spec->num_cvts;
  96         codec->pcm_info = info;
  97
  98         for (i = 0; i < codec->num_pcms; i++, info++) {
  99                 unsigned int chans;
 100
 101                 chans = get_wcaps(codec, spec->cvt[i]);
 102                 chans = get_wcaps_channels(chans);
 103
 104                 info->name = intel_hdmi_pcm_names[i];
 105                 info->pcm_type = HDA_PCM_TYPE_HDMI;
 106                 info->stream[SNDRV_PCM_STREAM_PLAYBACK] =
 107                                                         intel_hdmi_pcm_playback;
 108                 info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = spec->cvt[i];
 109                 info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max = chans;
 110         }
 111
 112         return 0;
 113 }
 114
 115 static int intel_hdmi_build_controls(struct hda_codec *codec)
 116 {
 117         struct hdmi_spec *spec = codec->spec;
 118         int err;
 119         int i;
 120
 121         for (i = 0; i < codec->num_pcms; i++) {
 122                 err = snd_hda_create_spdif_out_ctls(codec, spec->cvt[i]);
 123                 if (err < 0)
 124                         return err;
 125         }
 126
 127         return 0;
 128 }
 129
 130 static int intel_hdmi_init(struct hda_codec *codec)
 131 {
 132         struct hdmi_spec *spec = codec->spec;
 133         int i;
 134
 135         for (i = 0; spec->pin[i]; i++) {
 136                 hdmi_enable_output(codec, spec->pin[i]);
 137                 snd_hda_codec_write(codec, spec->pin[i], 0,
 138                                     AC_VERB_SET_UNSOLICITED_ENABLE,
 139                                     AC_USRSP_EN | spec->pin[i]);
 140         }
 141         return 0;
 142 }
 143
 144 static void intel_hdmi_free(struct hda_codec *codec)
 145 {
 146         struct hdmi_spec *spec = codec->spec;
 147         int i;
 148
 149         for (i = 0; i < spec->num_pins; i++)
 150                 snd_hda_eld_proc_free(codec, &spec->sink_eld[i]);
 151
 152         kfree(spec);
 153 }
 154
 155 static struct hda_codec_ops intel_hdmi_patch_ops = {
 156         .init                   = intel_hdmi_init,
 157         .free                   = intel_hdmi_free,
 158         .build_pcms             = intel_hdmi_build_pcms,
 159         .build_controls         = intel_hdmi_build_controls,
 160         .unsol_event            = hdmi_unsol_event,
 161 };
 162
 163 static int patch_intel_hdmi(struct hda_codec *codec)
 164 {
 165         struct hdmi_spec *spec;
 166         int i;
 167
 168         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
 169         if (spec == NULL)
 170                 return -ENOMEM;
 171
 172         codec->spec = spec;
 173         if (hdmi_parse_codec(codec) < 0) {
 174                 codec->spec = NULL;
 175                 kfree(spec);
 176                 return -EINVAL;
 177         }
 178         codec->patch_ops = intel_hdmi_patch_ops;
 179
 180         for (i = 0; i < spec->num_pins; i++)
 181                 snd_hda_eld_proc_new(codec, &spec->sink_eld[i], i);
 182
 183         init_channel_allocations();
 184
 185         return 0;
 186 }
 187
 188 static struct hda_codec_preset snd_hda_preset_intelhdmi[] = {
 189 { .id = 0x808629fb, .name = "Crestline HDMI",   .patch = patch_intel_hdmi },
 190 { .id = 0x80862801, .name = "Bearlake HDMI",    .patch = patch_intel_hdmi },
 191 { .id = 0x80862802, .name = "Cantiga HDMI",     .patch = patch_intel_hdmi },
 192 { .id = 0x80862803, .name = "Eaglelake HDMI",   .patch = patch_intel_hdmi },
 193 { .id = 0x80862804, .name = "IbexPeak HDMI",    .patch = patch_intel_hdmi },
 194 { .id = 0x80860054, .name = "IbexPeak HDMI",    .patch = patch_intel_hdmi },
 195 { .id = 0x80862805, .name = "CougarPoint HDMI", .patch = patch_intel_hdmi },
 196 { .id = 0x10951392, .name = "SiI1392 HDMI",     .patch = patch_intel_hdmi },
 197 {} /* terminator */
 198 };
 199
 200 MODULE_ALIAS("snd-hda-codec-id:808629fb");
 201 MODULE_ALIAS("snd-hda-codec-id:80862801");
 202 MODULE_ALIAS("snd-hda-codec-id:80862802");
 203 MODULE_ALIAS("snd-hda-codec-id:80862803");
 204 MODULE_ALIAS("snd-hda-codec-id:80862804");
 205 MODULE_ALIAS("snd-hda-codec-id:80862805");
 206 MODULE_ALIAS("snd-hda-codec-id:80860054");
 207 MODULE_ALIAS("snd-hda-codec-id:10951392");
 208
 209 MODULE_LICENSE("GPL");
 210 MODULE_DESCRIPTION("Intel HDMI HD-audio codec");
 211
 212 static struct hda_codec_preset_list intel_list = {
 213         .preset = snd_hda_preset_intelhdmi,
 214         .owner = THIS_MODULE,
 215 };
 216
 217 static int __init patch_intelhdmi_init(void)
 218 {
 219         return snd_hda_add_codec_preset(&intel_list);
 220 }
 221
 222 static void __exit patch_intelhdmi_exit(void)
 223 {
 224         snd_hda_delete_codec_preset(&intel_list);
 225 }
 226
 227 module_init(patch_intelhdmi_init)
 228 module_exit(patch_intelhdmi_exit)