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9a10eb21 WN |
1 | /* |
2 | * Universal Interface for Intel High Definition Audio Codec | |
3 | * | |
4 | * HD audio interface patch for NVIDIA HDMI codecs | |
5 | * | |
6 | * Copyright (c) 2008 NVIDIA Corp. All rights reserved. | |
7 | * Copyright (c) 2008 Wei Ni <wni@nvidia.com> | |
8 | * | |
9 | * | |
10 | * This driver is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This driver is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | */ | |
24 | ||
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 nvhdmi_spec { | |
33 | struct hda_multi_out multiout; | |
34 | ||
35 | struct hda_pcm pcm_rec; | |
36 | }; | |
37 | ||
38 | static struct hda_verb nvhdmi_basic_init[] = { | |
39 | /* enable digital output on pin widget */ | |
40 | { 0x05, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT }, | |
41 | {} /* terminator */ | |
42 | }; | |
43 | ||
44 | /* | |
45 | * Controls | |
46 | */ | |
47 | static int nvhdmi_build_controls(struct hda_codec *codec) | |
48 | { | |
49 | struct nvhdmi_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 nvhdmi_init(struct hda_codec *codec) | |
60 | { | |
61 | snd_hda_sequence_write(codec, nvhdmi_basic_init); | |
62 | return 0; | |
63 | } | |
64 | ||
65 | /* | |
66 | * Digital out | |
67 | */ | |
68 | static int nvhdmi_dig_playback_pcm_open(struct hda_pcm_stream *hinfo, | |
69 | struct hda_codec *codec, | |
70 | struct snd_pcm_substream *substream) | |
71 | { | |
72 | struct nvhdmi_spec *spec = codec->spec; | |
73 | return snd_hda_multi_out_dig_open(codec, &spec->multiout); | |
74 | } | |
75 | ||
76 | static int nvhdmi_dig_playback_pcm_close(struct hda_pcm_stream *hinfo, | |
77 | struct hda_codec *codec, | |
78 | struct snd_pcm_substream *substream) | |
79 | { | |
80 | struct nvhdmi_spec *spec = codec->spec; | |
81 | return snd_hda_multi_out_dig_close(codec, &spec->multiout); | |
82 | } | |
83 | ||
84 | static int nvhdmi_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo, | |
85 | struct hda_codec *codec, | |
86 | unsigned int stream_tag, | |
87 | unsigned int format, | |
88 | struct snd_pcm_substream *substream) | |
89 | { | |
90 | struct nvhdmi_spec *spec = codec->spec; | |
91 | return snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag, | |
92 | format, substream); | |
93 | } | |
94 | ||
95 | static struct hda_pcm_stream nvhdmi_pcm_digital_playback = { | |
96 | .substreams = 1, | |
97 | .channels_min = 2, | |
98 | .channels_max = 2, | |
99 | .nid = 0x4, /* NID to query formats and rates and setup streams */ | |
100 | .rates = SNDRV_PCM_RATE_48000, | |
101 | .maxbps = 16, | |
102 | .formats = SNDRV_PCM_FMTBIT_S16_LE, | |
103 | .ops = { | |
104 | .open = nvhdmi_dig_playback_pcm_open, | |
105 | .close = nvhdmi_dig_playback_pcm_close, | |
106 | .prepare = nvhdmi_dig_playback_pcm_prepare | |
107 | }, | |
108 | }; | |
109 | ||
110 | static int nvhdmi_build_pcms(struct hda_codec *codec) | |
111 | { | |
112 | struct nvhdmi_spec *spec = codec->spec; | |
113 | struct hda_pcm *info = &spec->pcm_rec; | |
114 | ||
115 | codec->num_pcms = 1; | |
116 | codec->pcm_info = info; | |
117 | ||
118 | info->name = "NVIDIA HDMI"; | |
ec4e86ba | 119 | info->pcm_type = HDA_PCM_TYPE_HDMI; |
9a10eb21 WN |
120 | info->stream[SNDRV_PCM_STREAM_PLAYBACK] = nvhdmi_pcm_digital_playback; |
121 | ||
122 | return 0; | |
123 | } | |
124 | ||
125 | static void nvhdmi_free(struct hda_codec *codec) | |
126 | { | |
127 | kfree(codec->spec); | |
128 | } | |
129 | ||
130 | static struct hda_codec_ops nvhdmi_patch_ops = { | |
131 | .build_controls = nvhdmi_build_controls, | |
132 | .build_pcms = nvhdmi_build_pcms, | |
133 | .init = nvhdmi_init, | |
134 | .free = nvhdmi_free, | |
135 | }; | |
136 | ||
137 | static int patch_nvhdmi(struct hda_codec *codec) | |
138 | { | |
139 | struct nvhdmi_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 = 0x4; /* NID for copying analog to digital, | |
150 | * seems to be unused in pure-digital | |
151 | * case. */ | |
152 | ||
153 | codec->patch_ops = nvhdmi_patch_ops; | |
154 | ||
155 | return 0; | |
156 | } | |
157 | ||
158 | /* | |
159 | * patch entries | |
160 | */ | |
1289e9e8 | 161 | static struct hda_codec_preset snd_hda_preset_nvhdmi[] = { |
9a10eb21 WN |
162 | { .id = 0x10de0002, .name = "NVIDIA MCP78 HDMI", .patch = patch_nvhdmi }, |
163 | { .id = 0x10de0007, .name = "NVIDIA MCP7A HDMI", .patch = patch_nvhdmi }, | |
164 | {} /* terminator */ | |
165 | }; | |
1289e9e8 TI |
166 | |
167 | MODULE_ALIAS("snd-hda-codec-id:10de0002"); | |
168 | MODULE_ALIAS("snd-hda-codec-id:10de0007"); | |
169 | ||
170 | MODULE_LICENSE("GPL"); | |
171 | MODULE_DESCRIPTION("Nvidia HDMI HD-audio codec"); | |
172 | ||
173 | static struct hda_codec_preset_list nvhdmi_list = { | |
174 | .preset = snd_hda_preset_nvhdmi, | |
175 | .owner = THIS_MODULE, | |
176 | }; | |
177 | ||
178 | static int __init patch_nvhdmi_init(void) | |
179 | { | |
180 | return snd_hda_add_codec_preset(&nvhdmi_list); | |
181 | } | |
182 | ||
183 | static void __exit patch_nvhdmi_exit(void) | |
184 | { | |
185 | snd_hda_delete_codec_preset(&nvhdmi_list); | |
186 | } | |
187 | ||
188 | module_init(patch_nvhdmi_init) | |
189 | module_exit(patch_nvhdmi_exit) |