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 };
163
|
This page was automatically generated by the
LXR engine.
|