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
|
/*
* mt8173-max98090.c -- MT8173 MAX98090 ALSA SoC machine driver
*
* Copyright (c) 2015 MediaTek Inc.
* Author: Koro Chen <koro.chen@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program 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.
*/
#include <linux/module.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <linux/gpio.h>
#include "../codecs/max98090.h"
static struct snd_soc_jack mt8173_max98090_jack;
static struct snd_soc_jack_pin mt8173_max98090_jack_pins[] = {
{
.pin = "Headphone",
.mask = SND_JACK_HEADPHONE,
},
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
};
static const struct snd_soc_dapm_widget mt8173_max98090_widgets[] = {
SND_SOC_DAPM_SPK("Speaker", NULL),
SND_SOC_DAPM_MIC("Int Mic", NULL),
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
};
static const struct snd_soc_dapm_route mt8173_max98090_routes[] = {
{"Speaker", NULL, "SPKL"},
{"Speaker", NULL, "SPKR"},
{"DMICL", NULL, "Int Mic"},
{"Headphone", NULL, "HPL"},
{"Headphone", NULL, "HPR"},
{"Headset Mic", NULL, "MICBIAS"},
{"IN34", NULL, "Headset Mic"},
};
static const struct snd_kcontrol_new mt8173_max98090_controls[] = {
SOC_DAPM_PIN_SWITCH("Speaker"),
SOC_DAPM_PIN_SWITCH("Int Mic"),
SOC_DAPM_PIN_SWITCH("Headphone"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
};
static int mt8173_max98090_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
return snd_soc_dai_set_sysclk(codec_dai, 0, params_rate(params) * 256,
SND_SOC_CLOCK_IN);
}
static struct snd_soc_ops mt8173_max98090_ops = {
.hw_params = mt8173_max98090_hw_params,
};
static int mt8173_max98090_init(struct snd_soc_pcm_runtime *runtime)
{
int ret;
struct snd_soc_card *card = runtime->card;
struct snd_soc_codec *codec = runtime->codec;
/* enable jack detection */
ret = snd_soc_card_jack_new(card, "Headphone", SND_JACK_HEADPHONE,
&mt8173_max98090_jack, NULL, 0);
if (ret) {
dev_err(card->dev, "Can't snd_soc_jack_new %d\n", ret);
return ret;
}
ret = snd_soc_jack_add_pins(&mt8173_max98090_jack,
ARRAY_SIZE(mt8173_max98090_jack_pins),
mt8173_max98090_jack_pins);
if (ret) {
dev_err(card->dev, "Can't snd_soc_jack_add_pins %d\n", ret);
return ret;
}
return max98090_mic_detect(codec, &mt8173_max98090_jack);
}
/* Digital audio interface glue - connects codec <---> CPU */
static struct snd_soc_dai_link mt8173_max98090_dais[] = {
/* Front End DAI links */
{
.name = "MAX98090 Playback",
.stream_name = "MAX98090 Playback",
.cpu_dai_name = "DL1",
.platform_name = "11220000.mt8173-afe-pcm",
.codec_name = "snd-soc-dummy",
.codec_dai_name = "snd-soc-dummy-dai",
.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
.dynamic = 1,
.dpcm_playback = 1,
},
{
.name = "MAX98090 Capture",
.stream_name = "MAX98090 Capture",
.cpu_dai_name = "VUL",
.platform_name = "11220000.mt8173-afe-pcm",
.codec_name = "snd-soc-dummy",
.codec_dai_name = "snd-soc-dummy-dai",
.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
.dynamic = 1,
.dpcm_capture = 1,
},
/* Back End DAI links */
{
.name = "Codec",
.cpu_dai_name = "I2S",
.platform_name = "11220000.mt8173-afe-pcm",
.no_pcm = 1,
.codec_dai_name = "HiFi",
.init = mt8173_max98090_init,
.ops = &mt8173_max98090_ops,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
.dpcm_playback = 1,
.dpcm_capture = 1,
},
};
static struct snd_soc_card mt8173_max98090_card = {
.name = "mt8173-max98090",
.dai_link = mt8173_max98090_dais,
.num_links = ARRAY_SIZE(mt8173_max98090_dais),
.controls = mt8173_max98090_controls,
.num_controls = ARRAY_SIZE(mt8173_max98090_controls),
.dapm_widgets = mt8173_max98090_widgets,
.num_dapm_widgets = ARRAY_SIZE(mt8173_max98090_widgets),
.dapm_routes = mt8173_max98090_routes,
.num_dapm_routes = ARRAY_SIZE(mt8173_max98090_routes),
};
static int mt8173_max98090_dev_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &mt8173_max98090_card;
struct device_node *codec_node;
int ret, i;
codec_node = of_parse_phandle(pdev->dev.of_node,
"mediatek,audio-codec", 0);
if (!codec_node) {
dev_err(&pdev->dev,
"Property 'audio-codec' missing or invalid\n");
return -EINVAL;
}
for (i = 0; i < card->num_links; i++) {
if (mt8173_max98090_dais[i].codec_name)
continue;
mt8173_max98090_dais[i].codec_of_node = codec_node;
}
card->dev = &pdev->dev;
ret = snd_soc_register_card(card);
if (ret)
dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
__func__, ret);
return ret;
}
static int mt8173_max98090_dev_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
snd_soc_unregister_card(card);
return 0;
}
static const struct of_device_id mt8173_max98090_dt_match[] = {
{ .compatible = "mediatek,mt8173-max98090", },
{ }
};
MODULE_DEVICE_TABLE(of, mt8173_max98090_dt_match);
static struct platform_driver mt8173_max98090_driver = {
.driver = {
.name = "mt8173-max98090",
.owner = THIS_MODULE,
.of_match_table = mt8173_max98090_dt_match,
#ifdef CONFIG_PM
.pm = &snd_soc_pm_ops,
#endif
},
.probe = mt8173_max98090_dev_probe,
.remove = mt8173_max98090_dev_remove,
};
module_platform_driver(mt8173_max98090_driver);
/* Module information */
MODULE_DESCRIPTION("MT8173 MAX98090 ALSA SoC machine driver");
MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:mt8173-max98090");
|
