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
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
/*
* Universal Interface for Intel High Definition Audio Codec
*
* HD audio interface patch for ATI HDMI codecs
*
* Copyright (c) 2006 ATI Technologies Inc.
*
*
* 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 atihdmi_spec {
struct hda_multi_out multiout;
struct hda_pcm pcm_rec;
};
#define CVT_NID 0x02 /* audio converter */
#define PIN_NID 0x03 /* HDMI output pin */
static struct hda_verb atihdmi_basic_init[] = {
/* enable digital output on pin widget */
{ 0x03, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
{} /* terminator */
};
/*
* Controls
*/
static int atihdmi_build_controls(struct hda_codec *codec)
{
struct atihdmi_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 atihdmi_init(struct hda_codec *codec)
{
snd_hda_sequence_write(codec, atihdmi_basic_init);
/* SI codec requires to unmute the pin */
if (get_wcaps(codec, PIN_NID) & AC_WCAP_OUT_AMP)
snd_hda_codec_write(codec, PIN_NID, 0,
AC_VERB_SET_AMP_GAIN_MUTE,
AMP_OUT_UNMUTE);
return 0;
}
/*
* Digital out
*/
static int atihdmi_dig_playback_pcm_open(struct hda_pcm_stream *hinfo,
struct hda_codec *codec,
struct snd_pcm_substream *substream)
{
struct atihdmi_spec *spec = codec->spec;
return snd_hda_multi_out_dig_open(codec, &spec->multiout);
}
static int atihdmi_dig_playback_pcm_close(struct hda_pcm_stream *hinfo,
struct hda_codec *codec,
struct snd_pcm_substream *substream)
{
struct atihdmi_spec *spec = codec->spec;
return snd_hda_multi_out_dig_close(codec, &spec->multiout);
}
static int atihdmi_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 atihdmi_spec *spec = codec->spec;
int chans = substream->runtime->channels;
int i, err;
err = snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
format, substream);
if (err < 0)
return err;
snd_hda_codec_write(codec, CVT_NID, 0, AC_VERB_SET_CVT_CHAN_COUNT,
chans - 1);
/* FIXME: XXX */
for (i = 0; i < chans; i++) {
snd_hda_codec_write(codec, CVT_NID, 0,
AC_VERB_SET_HDMI_CHAN_SLOT,
(i << 4) | i);
}
return 0;
}
static struct hda_pcm_stream atihdmi_pcm_digital_playback = {
.substreams = 1,
.channels_min = 2,
.channels_max = 2,
.nid = CVT_NID, /* NID to query formats and rates and setup streams */
.ops = {
.open = atihdmi_dig_playback_pcm_open,
.close = atihdmi_dig_playback_pcm_close,
.prepare = atihdmi_dig_playback_pcm_prepare
},
};
static int atihdmi_build_pcms(struct hda_codec *codec)
{
struct atihdmi_spec *spec = codec->spec;
struct hda_pcm *info = &spec->pcm_rec;
unsigned int chans;
codec->num_pcms = 1;
codec->pcm_info = info;
info->name = "ATI HDMI";
info->pcm_type = HDA_PCM_TYPE_HDMI;
info->stream[SNDRV_PCM_STREAM_PLAYBACK] = atihdmi_pcm_digital_playback;
/* FIXME: we must check ELD and change the PCM parameters dynamically
*/
chans = get_wcaps(codec, CVT_NID);
chans = (chans & AC_WCAP_CHAN_CNT_EXT) >> 13;
chans = ((chans << 1) | 1) + 1;
info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max = chans;
return 0;
}
static void atihdmi_free(struct hda_codec *codec)
{
kfree(codec->spec);
}
static struct hda_codec_ops atihdmi_patch_ops = {
.build_controls = atihdmi_build_controls,
.build_pcms = atihdmi_build_pcms,
.init = atihdmi_init,
.free = atihdmi_free,
};
static int patch_atihdmi(struct hda_codec *codec)
{
struct atihdmi_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;
/* NID for copying analog to digital,
* seems to be unused in pure-digital
* case.
*/
spec->multiout.dig_out_nid = CVT_NID;
codec->patch_ops = atihdmi_patch_ops;
return 0;
}
/*
* patch entries
*/
static struct hda_codec_preset snd_hda_preset_atihdmi[] = {
{ .id = 0x1002793c, .name = "RS600 HDMI", .patch = patch_atihdmi },
{ .id = 0x10027919, .name = "RS600 HDMI", .patch = patch_atihdmi },
{ .id = 0x1002791a, .name = "RS690/780 HDMI", .patch = patch_atihdmi },
{ .id = 0x1002aa01, .name = "R6xx HDMI", .patch = patch_atihdmi },
{ .id = 0x10951390, .name = "SiI1390 HDMI", .patch = patch_atihdmi },
{ .id = 0x17e80047, .name = "Chrontel HDMI", .patch = patch_atihdmi },
{} /* terminator */
};
MODULE_ALIAS("snd-hda-codec-id:1002793c");
MODULE_ALIAS("snd-hda-codec-id:10027919");
MODULE_ALIAS("snd-hda-codec-id:1002791a");
MODULE_ALIAS("snd-hda-codec-id:1002aa01");
MODULE_ALIAS("snd-hda-codec-id:10951390");
MODULE_ALIAS("snd-hda-codec-id:17e80047");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("ATI HDMI HD-audio codec");
static struct hda_codec_preset_list atihdmi_list = {
.preset = snd_hda_preset_atihdmi,
.owner = THIS_MODULE,
};
static int __init patch_atihdmi_init(void)
{
return snd_hda_add_codec_preset(&atihdmi_list);
}
static void __exit patch_atihdmi_exit(void)
{
snd_hda_delete_codec_preset(&atihdmi_list);
}
module_init(patch_atihdmi_init)
module_exit(patch_atihdmi_exit)
|
