Merge master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-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 <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 struct hda_pcm_stream atihdmi_pcm_digital_playback = {
98         .substreams = 1,
99         .channels_min = 2,
100         .channels_max = 2,
101         .nid = 0x2, /* NID to query formats and rates and setup streams */
102         .ops = {
103                 .open = atihdmi_dig_playback_pcm_open,
104                 .close = atihdmi_dig_playback_pcm_close
105         },
106 };
107
108 static int atihdmi_build_pcms(struct hda_codec *codec)
109 {
110         struct atihdmi_spec *spec = codec->spec;
111         struct hda_pcm *info = &spec->pcm_rec;
112
113         codec->num_pcms = 1;
114         codec->pcm_info = info;
115
116         info->name = "ATI HDMI";
117         info->stream[SNDRV_PCM_STREAM_PLAYBACK] = atihdmi_pcm_digital_playback;
118
119         return 0;
120 }
121
122 static void atihdmi_free(struct hda_codec *codec)
123 {
124         kfree(codec->spec);
125 }
126
127 static struct hda_codec_ops atihdmi_patch_ops = {
128         .build_controls = atihdmi_build_controls,
129         .build_pcms = atihdmi_build_pcms,
130         .init = atihdmi_init,
131         .free = atihdmi_free,
132 #ifdef CONFIG_PM
133         .resume = atihdmi_resume,
134 #endif
135 };
136
137 static int patch_atihdmi(struct hda_codec *codec)
138 {
139         struct atihdmi_spec *spec;
140
141         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
142         if (spec == NULL)
143                 return -ENOMEM;
144
145         codec->spec = spec;
146
147         spec->multiout.num_dacs = 0;      /* no analog */
148         spec->multiout.max_channels = 2;
149         spec->multiout.dig_out_nid = 0x2; /* NID for copying analog to digital,
150                                            * seems to be unused in pure-digital
151                                            * case. */
152
153         codec->patch_ops = atihdmi_patch_ops;
154
155         return 0;
156 }
157
158 /*
159  * patch entries
160  */
161 struct hda_codec_preset snd_hda_preset_atihdmi[] = {
162         { .id = 0x1002793c, .name = "ATI RS600 HDMI", .patch = patch_atihdmi },
163         { .id = 0x1002791a, .name = "ATI RS690 HDMI", .patch = patch_atihdmi },
164         {} /* terminator */
165 };