1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17#include <linux/module.h>
18#include <sound/soc.h>
19#include <sound/jack.h>
20#include <linux/gpio.h>
21#include "../../codecs/max98090.h"
22
23static struct snd_soc_jack mt8173_max98090_jack;
24
25static struct snd_soc_jack_pin mt8173_max98090_jack_pins[] = {
26 {
27 .pin = "Headphone",
28 .mask = SND_JACK_HEADPHONE,
29 },
30 {
31 .pin = "Headset Mic",
32 .mask = SND_JACK_MICROPHONE,
33 },
34};
35
36static const struct snd_soc_dapm_widget mt8173_max98090_widgets[] = {
37 SND_SOC_DAPM_SPK("Speaker", NULL),
38 SND_SOC_DAPM_MIC("Int Mic", NULL),
39 SND_SOC_DAPM_HP("Headphone", NULL),
40 SND_SOC_DAPM_MIC("Headset Mic", NULL),
41};
42
43static const struct snd_soc_dapm_route mt8173_max98090_routes[] = {
44 {"Speaker", NULL, "SPKL"},
45 {"Speaker", NULL, "SPKR"},
46 {"DMICL", NULL, "Int Mic"},
47 {"Headphone", NULL, "HPL"},
48 {"Headphone", NULL, "HPR"},
49 {"Headset Mic", NULL, "MICBIAS"},
50 {"IN34", NULL, "Headset Mic"},
51};
52
53static const struct snd_kcontrol_new mt8173_max98090_controls[] = {
54 SOC_DAPM_PIN_SWITCH("Speaker"),
55 SOC_DAPM_PIN_SWITCH("Int Mic"),
56 SOC_DAPM_PIN_SWITCH("Headphone"),
57 SOC_DAPM_PIN_SWITCH("Headset Mic"),
58};
59
60static int mt8173_max98090_hw_params(struct snd_pcm_substream *substream,
61 struct snd_pcm_hw_params *params)
62{
63 struct snd_soc_pcm_runtime *rtd = substream->private_data;
64 struct snd_soc_dai *codec_dai = rtd->codec_dai;
65
66 return snd_soc_dai_set_sysclk(codec_dai, 0, params_rate(params) * 256,
67 SND_SOC_CLOCK_IN);
68}
69
70static struct snd_soc_ops mt8173_max98090_ops = {
71 .hw_params = mt8173_max98090_hw_params,
72};
73
74static int mt8173_max98090_init(struct snd_soc_pcm_runtime *runtime)
75{
76 int ret;
77 struct snd_soc_card *card = runtime->card;
78 struct snd_soc_codec *codec = runtime->codec;
79
80
81 ret = snd_soc_card_jack_new(card, "Headphone", SND_JACK_HEADPHONE,
82 &mt8173_max98090_jack, NULL, 0);
83 if (ret) {
84 dev_err(card->dev, "Can't snd_soc_jack_new %d\n", ret);
85 return ret;
86 }
87
88 ret = snd_soc_jack_add_pins(&mt8173_max98090_jack,
89 ARRAY_SIZE(mt8173_max98090_jack_pins),
90 mt8173_max98090_jack_pins);
91 if (ret) {
92 dev_err(card->dev, "Can't snd_soc_jack_add_pins %d\n", ret);
93 return ret;
94 }
95
96 return max98090_mic_detect(codec, &mt8173_max98090_jack);
97}
98
99
100static struct snd_soc_dai_link mt8173_max98090_dais[] = {
101
102 {
103 .name = "MAX98090 Playback",
104 .stream_name = "MAX98090 Playback",
105 .cpu_dai_name = "DL1",
106 .codec_name = "snd-soc-dummy",
107 .codec_dai_name = "snd-soc-dummy-dai",
108 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
109 .dynamic = 1,
110 .dpcm_playback = 1,
111 },
112 {
113 .name = "MAX98090 Capture",
114 .stream_name = "MAX98090 Capture",
115 .cpu_dai_name = "VUL",
116 .codec_name = "snd-soc-dummy",
117 .codec_dai_name = "snd-soc-dummy-dai",
118 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
119 .dynamic = 1,
120 .dpcm_capture = 1,
121 },
122
123 {
124 .name = "Codec",
125 .cpu_dai_name = "I2S",
126 .no_pcm = 1,
127 .codec_dai_name = "HiFi",
128 .init = mt8173_max98090_init,
129 .ops = &mt8173_max98090_ops,
130 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
131 SND_SOC_DAIFMT_CBS_CFS,
132 .dpcm_playback = 1,
133 .dpcm_capture = 1,
134 },
135};
136
137static struct snd_soc_card mt8173_max98090_card = {
138 .name = "mt8173-max98090",
139 .owner = THIS_MODULE,
140 .dai_link = mt8173_max98090_dais,
141 .num_links = ARRAY_SIZE(mt8173_max98090_dais),
142 .controls = mt8173_max98090_controls,
143 .num_controls = ARRAY_SIZE(mt8173_max98090_controls),
144 .dapm_widgets = mt8173_max98090_widgets,
145 .num_dapm_widgets = ARRAY_SIZE(mt8173_max98090_widgets),
146 .dapm_routes = mt8173_max98090_routes,
147 .num_dapm_routes = ARRAY_SIZE(mt8173_max98090_routes),
148};
149
150static int mt8173_max98090_dev_probe(struct platform_device *pdev)
151{
152 struct snd_soc_card *card = &mt8173_max98090_card;
153 struct device_node *codec_node, *platform_node;
154 int ret, i;
155
156 platform_node = of_parse_phandle(pdev->dev.of_node,
157 "mediatek,platform", 0);
158 if (!platform_node) {
159 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
160 return -EINVAL;
161 }
162 for (i = 0; i < card->num_links; i++) {
163 if (mt8173_max98090_dais[i].platform_name)
164 continue;
165 mt8173_max98090_dais[i].platform_of_node = platform_node;
166 }
167
168 codec_node = of_parse_phandle(pdev->dev.of_node,
169 "mediatek,audio-codec", 0);
170 if (!codec_node) {
171 dev_err(&pdev->dev,
172 "Property 'audio-codec' missing or invalid\n");
173 return -EINVAL;
174 }
175 for (i = 0; i < card->num_links; i++) {
176 if (mt8173_max98090_dais[i].codec_name)
177 continue;
178 mt8173_max98090_dais[i].codec_of_node = codec_node;
179 }
180 card->dev = &pdev->dev;
181
182 ret = devm_snd_soc_register_card(&pdev->dev, card);
183 if (ret)
184 dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
185 __func__, ret);
186 return ret;
187}
188
189static const struct of_device_id mt8173_max98090_dt_match[] = {
190 { .compatible = "mediatek,mt8173-max98090", },
191 { }
192};
193MODULE_DEVICE_TABLE(of, mt8173_max98090_dt_match);
194
195static struct platform_driver mt8173_max98090_driver = {
196 .driver = {
197 .name = "mt8173-max98090",
198 .of_match_table = mt8173_max98090_dt_match,
199#ifdef CONFIG_PM
200 .pm = &snd_soc_pm_ops,
201#endif
202 },
203 .probe = mt8173_max98090_dev_probe,
204};
205
206module_platform_driver(mt8173_max98090_driver);
207
208
209MODULE_DESCRIPTION("MT8173 MAX98090 ALSA SoC machine driver");
210MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
211MODULE_LICENSE("GPL v2");
212MODULE_ALIAS("platform:mt8173-max98090");
213
214
