72d3ab9751ac3c5aebcbfc9fb94071ec0e5228be
[linux-2.6.git] / 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 <sound/driver.h>
25 #include <linux/init.h>
26 #include <linux/delay.h>
27 #include <linux/slab.h>
28 #include <sound/core.h>
29 #include "hda_codec.h"
30 #include "hda_local.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         return 0;
63 }
64
65 #ifdef CONFIG_PM
66 /*
67  * resume
68  */
69 static int atihdmi_resume(struct hda_codec *codec)
70 {
71         atihdmi_init(codec);
72         snd_hda_resume_spdif_out(codec);
73
74         return 0;
75 }
76 #endif
77
78 /*
79  * Digital out
80  */
81 static int atihdmi_dig_playback_pcm_open(struct hda_pcm_stream *hinfo,
82                                      struct hda_codec *codec,
83                                      struct snd_pcm_substream *substream)
84 {
85         struct atihdmi_spec *spec = codec->spec;
86         return snd_hda_multi_out_dig_open(codec, &spec->multiout);
87 }
88
89 static int atihdmi_dig_playback_pcm_close(struct hda_pcm_stream *hinfo,
90                                       struct hda_codec *codec,
91                                       struct snd_pcm_substream *substream)
92 {
93         struct atihdmi_spec *spec = codec->spec;
94         return snd_hda_multi_out_dig_close(codec, &spec->multiout);
95 }
96
97 static int atihdmi_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
98                                             struct hda_codec *codec,
99                                             unsigned int stream_tag,
100                                             unsigned int format,
101                                             struct snd_pcm_substream *substream)
102 {
103         struct atihdmi_spec *spec = codec->spec;
104         return snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
105                                              format, substream);
106 }
107
108 static struct hda_pcm_stream atihdmi_pcm_digital_playback = {
109         .substreams = 1,
110         .channels_min = 2,
111         .channels_max = 2,
112         .nid = 0x2, /* NID to query formats and rates and setup streams */
113         .ops = {
114                 .open = atihdmi_dig_playback_pcm_open,
115                 .close = atihdmi_dig_playback_pcm_close,
116                 .prepare = atihdmi_dig_playback_pcm_prepare
117         },
118 };
119
120 static int atihdmi_build_pcms(struct hda_codec *codec)
121 {
122         struct atihdmi_spec *spec = codec->spec;
123         struct hda_pcm *info = &spec->pcm_rec;
124
125         codec->num_pcms = 1;
126         codec->pcm_info = info;
127
128         info->name = "ATI HDMI";
129         info->stream[SNDRV_PCM_STREAM_PLAYBACK] = atihdmi_pcm_digital_playback;
130
131         return 0;
132 }
133
134 static void atihdmi_free(struct hda_codec *codec)
135 {
136         kfree(codec->spec);
137 }
138
139 static struct hda_codec_ops atihdmi_patch_ops = {
140         .build_controls = atihdmi_build_controls,
141         .build_pcms = atihdmi_build_pcms,
142         .init = atihdmi_init,
143         .free = atihdmi_free,
144 #ifdef CONFIG_PM
145         .resume = atihdmi_resume,
146 #endif
147 };
148
149 static int patch_atihdmi(struct hda_codec *codec)
150 {
151         struct atihdmi_spec *spec;
152
153         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
154         if (spec == NULL)
155                 return -ENOMEM;
156
157         codec->spec = spec;
158
159         spec->multiout.num_dacs = 0;      /* no analog */
160         spec->multiout.max_channels = 2;
161         spec->multiout.dig_out_nid = 0x2; /* NID for copying analog to digital,
162                                            * seems to be unused in pure-digital
163                                            * case. */
164
165         codec->patch_ops = atihdmi_patch_ops;
166
167         return 0;
168 }
169
170 /*
171  * patch entries
172  */
173 struct hda_codec_preset snd_hda_preset_atihdmi[] = {
174         { .id = 0x1002793c, .name = "ATI RS600 HDMI", .patch = patch_atihdmi },
175         { .id = 0x10027919, .name = "ATI RS600 HDMI", .patch = patch_atihdmi },
176         { .id = 0x1002791a, .name = "ATI RS690/780 HDMI", .patch = patch_atihdmi },
177         { .id = 0x1002aa01, .name = "ATI R600 HDMI", .patch = patch_atihdmi },
178         {} /* terminator */
179 };