Merge git://git.infradead.org/~dedekind/ubi-2.6
[linux-2.6] / 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         return 0;
62 }
63
64 /*
65  * Digital out
66  */
67 static int atihdmi_dig_playback_pcm_open(struct hda_pcm_stream *hinfo,
68                                      struct hda_codec *codec,
69                                      struct snd_pcm_substream *substream)
70 {
71         struct atihdmi_spec *spec = codec->spec;
72         return snd_hda_multi_out_dig_open(codec, &spec->multiout);
73 }
74
75 static int atihdmi_dig_playback_pcm_close(struct hda_pcm_stream *hinfo,
76                                       struct hda_codec *codec,
77                                       struct snd_pcm_substream *substream)
78 {
79         struct atihdmi_spec *spec = codec->spec;
80         return snd_hda_multi_out_dig_close(codec, &spec->multiout);
81 }
82
83 static int atihdmi_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
84                                             struct hda_codec *codec,
85                                             unsigned int stream_tag,
86                                             unsigned int format,
87                                             struct snd_pcm_substream *substream)
88 {
89         struct atihdmi_spec *spec = codec->spec;
90         return snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
91                                              format, substream);
92 }
93
94 static struct hda_pcm_stream atihdmi_pcm_digital_playback = {
95         .substreams = 1,
96         .channels_min = 2,
97         .channels_max = 2,
98         .nid = 0x2, /* NID to query formats and rates and setup streams */
99         .ops = {
100                 .open = atihdmi_dig_playback_pcm_open,
101                 .close = atihdmi_dig_playback_pcm_close,
102                 .prepare = atihdmi_dig_playback_pcm_prepare
103         },
104 };
105
106 static int atihdmi_build_pcms(struct hda_codec *codec)
107 {
108         struct atihdmi_spec *spec = codec->spec;
109         struct hda_pcm *info = &spec->pcm_rec;
110
111         codec->num_pcms = 1;
112         codec->pcm_info = info;
113
114         info->name = "ATI HDMI";
115         info->stream[SNDRV_PCM_STREAM_PLAYBACK] = atihdmi_pcm_digital_playback;
116
117         return 0;
118 }
119
120 static void atihdmi_free(struct hda_codec *codec)
121 {
122         kfree(codec->spec);
123 }
124
125 static struct hda_codec_ops atihdmi_patch_ops = {
126         .build_controls = atihdmi_build_controls,
127         .build_pcms = atihdmi_build_pcms,
128         .init = atihdmi_init,
129         .free = atihdmi_free,
130 };
131
132 static int patch_atihdmi(struct hda_codec *codec)
133 {
134         struct atihdmi_spec *spec;
135
136         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
137         if (spec == NULL)
138                 return -ENOMEM;
139
140         codec->spec = spec;
141
142         spec->multiout.num_dacs = 0;      /* no analog */
143         spec->multiout.max_channels = 2;
144         spec->multiout.dig_out_nid = 0x2; /* NID for copying analog to digital,
145                                            * seems to be unused in pure-digital
146                                            * case. */
147
148         codec->patch_ops = atihdmi_patch_ops;
149
150         return 0;
151 }
152
153 /*
154  * patch entries
155  */
156 struct hda_codec_preset snd_hda_preset_atihdmi[] = {
157         { .id = 0x1002793c, .name = "ATI RS600 HDMI", .patch = patch_atihdmi },
158         { .id = 0x10027919, .name = "ATI RS600 HDMI", .patch = patch_atihdmi },
159         { .id = 0x1002791a, .name = "ATI RS690/780 HDMI", .patch = patch_atihdmi },
160         { .id = 0x1002aa01, .name = "ATI R6xx HDMI", .patch = patch_atihdmi },
161         {} /* terminator */
162 };