summaryrefslogtreecommitdiffstats
path: root/sound/pci/hda/patch_nvhdmi.c
blob: 0270fda0bda5f722e2d8f9833b07bad216815fc7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
/*
 * Universal Interface for Intel High Definition Audio Codec
 *
 * HD audio interface patch for NVIDIA HDMI codecs
 *
 * Copyright (c) 2008 NVIDIA Corp.  All rights reserved.
 * Copyright (c) 2008 Wei Ni <wni@nvidia.com>
 *
 *
 *  This driver is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This driver is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#include <linux/init.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <sound/core.h>
#include "hda_codec.h"
#include "hda_local.h"

struct nvhdmi_spec {
	struct hda_multi_out multiout;

	struct hda_pcm pcm_rec;
};

static struct hda_verb nvhdmi_basic_init[] = {
	/* enable digital output on pin widget */
	{ 0x05, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
	{} /* terminator */
};

/*
 * Controls
 */
static int nvhdmi_build_controls(struct hda_codec *codec)
{
	struct nvhdmi_spec *spec = codec->spec;
	int err;

	err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
	if (err < 0)
		return err;

	return 0;
}

static int nvhdmi_init(struct hda_codec *codec)
{
	snd_hda_sequence_write(codec, nvhdmi_basic_init);
	return 0;
}

/*
 * Digital out
 */
static int nvhdmi_dig_playback_pcm_open(struct hda_pcm_stream *hinfo,
				     struct hda_codec *codec,
				     struct snd_pcm_substream *substream)
{
	struct nvhdmi_spec *spec = codec->spec;
	return snd_hda_multi_out_dig_open(codec, &spec->multiout);
}

static int nvhdmi_dig_playback_pcm_close(struct hda_pcm_stream *hinfo,
				      struct hda_codec *codec,
				      struct snd_pcm_substream *substream)
{
	struct nvhdmi_spec *spec = codec->spec;
	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
}

static int nvhdmi_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
					    struct hda_codec *codec,
					    unsigned int stream_tag,
					    unsigned int format,
					    struct snd_pcm_substream *substream)
{
	struct nvhdmi_spec *spec = codec->spec;
	return snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
					     format, substream);
}

static struct hda_pcm_stream nvhdmi_pcm_digital_playback = {
	.substreams = 1,
	.channels_min = 2,
	.channels_max = 2,
	.nid = 0x4, /* NID to query formats and rates and setup streams */
	.rates = SNDRV_PCM_RATE_48000,
	.maxbps = 16,
	.formats = SNDRV_PCM_FMTBIT_S16_LE,
	.ops = {
		.open = nvhdmi_dig_playback_pcm_open,
		.close = nvhdmi_dig_playback_pcm_close,
		.prepare = nvhdmi_dig_playback_pcm_prepare
	},
};

static int nvhdmi_build_pcms(struct hda_codec *codec)
{
	struct nvhdmi_spec *spec = codec->spec;
	struct hda_pcm *info = &spec->pcm_rec;

	codec->num_pcms = 1;
	codec->pcm_info = info;

	info->name = "NVIDIA HDMI";
	info->pcm_type = HDA_PCM_TYPE_HDMI;
	info->stream[SNDRV_PCM_STREAM_PLAYBACK] = nvhdmi_pcm_digital_playback;

	return 0;
}

static void nvhdmi_free(struct hda_codec *codec)
{
	kfree(codec->spec);
}

static struct hda_codec_ops nvhdmi_patch_ops = {
	.build_controls = nvhdmi_build_controls,
	.build_pcms = nvhdmi_build_pcms,
	.init = nvhdmi_init,
	.free = nvhdmi_free,
};

static int patch_nvhdmi(struct hda_codec *codec)
{
	struct nvhdmi_spec *spec;

	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
	if (spec == NULL)
		return -ENOMEM;

	codec->spec = spec;

	spec->multiout.num_dacs = 0;	  /* no analog */
	spec->multiout.max_channels = 2;
	spec->multiout.dig_out_nid = 0x4; /* NID for copying analog to digital,
					   * seems to be unused in pure-digital
					   * case. */

	codec->patch_ops = nvhdmi_patch_ops;

	return 0;
}

/*
 * patch entries
 */
static struct hda_codec_preset snd_hda_preset_nvhdmi[] = {
	{ .id = 0x10de0002, .name = "MCP78 HDMI", .patch = patch_nvhdmi },
	{ .id = 0x10de0007, .name = "MCP7A HDMI", .patch = patch_nvhdmi },
	{ .id = 0x10de0067, .name = "MCP67 HDMI", .patch = patch_nvhdmi },
	{} /* terminator */
};

MODULE_ALIAS("snd-hda-codec-id:10de0002");
MODULE_ALIAS("snd-hda-codec-id:10de0007");
MODULE_ALIAS("snd-hda-codec-id:10de0067");

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Nvidia HDMI HD-audio codec");

static struct hda_codec_preset_list nvhdmi_list = {
	.preset = snd_hda_preset_nvhdmi,
	.owner = THIS_MODULE,
};

static int __init patch_nvhdmi_init(void)
{
	return snd_hda_add_codec_preset(&nvhdmi_list);
}

static void __exit patch_nvhdmi_exit(void)
{
	snd_hda_delete_codec_preset(&nvhdmi_list);
}

module_init(patch_nvhdmi_init)
module_exit(patch_nvhdmi_exit)
OpenPOWER on IntegriCloud