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9b351d46 JN |
1 | /* |
2 | * Intel Baytrail SST MAX98090 machine driver | |
3 | * Copyright (c) 2014, Intel Corporation. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms and conditions of the GNU General Public License, | |
7 | * version 2, as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | */ | |
14 | ||
15 | #include <linux/init.h> | |
16 | #include <linux/module.h> | |
17 | #include <linux/platform_device.h> | |
18 | #include <linux/acpi.h> | |
19 | #include <linux/device.h> | |
20 | #include <linux/gpio.h> | |
21 | #include <linux/gpio/consumer.h> | |
22 | #include <linux/slab.h> | |
23 | #include <sound/pcm.h> | |
24 | #include <sound/pcm_params.h> | |
25 | #include <sound/soc.h> | |
26 | #include <sound/jack.h> | |
27 | #include "../codecs/max98090.h" | |
28 | ||
29 | struct byt_max98090_private { | |
30 | struct snd_soc_jack jack; | |
31 | }; | |
32 | ||
33 | static const struct snd_soc_dapm_widget byt_max98090_widgets[] = { | |
34 | SND_SOC_DAPM_HP("Headphone", NULL), | |
35 | SND_SOC_DAPM_MIC("Headset Mic", NULL), | |
36 | SND_SOC_DAPM_MIC("Int Mic", NULL), | |
37 | SND_SOC_DAPM_SPK("Ext Spk", NULL), | |
38 | }; | |
39 | ||
40 | static const struct snd_soc_dapm_route byt_max98090_audio_map[] = { | |
41 | {"IN34", NULL, "Headset Mic"}, | |
42 | {"IN34", NULL, "MICBIAS"}, | |
43 | {"MICBIAS", NULL, "Headset Mic"}, | |
44 | {"DMICL", NULL, "Int Mic"}, | |
45 | {"Headphone", NULL, "HPL"}, | |
46 | {"Headphone", NULL, "HPR"}, | |
47 | {"Ext Spk", NULL, "SPKL"}, | |
48 | {"Ext Spk", NULL, "SPKR"}, | |
49 | }; | |
50 | ||
51 | static const struct snd_kcontrol_new byt_max98090_controls[] = { | |
52 | SOC_DAPM_PIN_SWITCH("Headphone"), | |
53 | SOC_DAPM_PIN_SWITCH("Headset Mic"), | |
54 | SOC_DAPM_PIN_SWITCH("Int Mic"), | |
55 | SOC_DAPM_PIN_SWITCH("Ext Spk"), | |
56 | }; | |
57 | ||
58 | static struct snd_soc_jack_pin hs_jack_pins[] = { | |
59 | { | |
60 | .pin = "Headphone", | |
61 | .mask = SND_JACK_HEADPHONE, | |
62 | }, | |
63 | { | |
64 | .pin = "Headset Mic", | |
65 | .mask = SND_JACK_MICROPHONE, | |
66 | }, | |
67 | { | |
68 | .pin = "Ext Spk", | |
69 | .mask = SND_JACK_LINEOUT, | |
70 | }, | |
71 | { | |
72 | .pin = "Int Mic", | |
73 | .mask = SND_JACK_LINEIN, | |
74 | }, | |
75 | }; | |
76 | ||
77 | static struct snd_soc_jack_gpio hs_jack_gpios[] = { | |
78 | { | |
79 | .name = "hp-gpio", | |
80 | .idx = 0, | |
81 | .report = SND_JACK_HEADPHONE | SND_JACK_LINEOUT, | |
82 | .debounce_time = 200, | |
83 | }, | |
84 | { | |
85 | .name = "mic-gpio", | |
86 | .idx = 1, | |
87 | .report = SND_JACK_MICROPHONE | SND_JACK_LINEIN, | |
88 | .debounce_time = 200, | |
89 | }, | |
90 | }; | |
91 | ||
92 | static int byt_max98090_init(struct snd_soc_pcm_runtime *runtime) | |
93 | { | |
94 | int ret; | |
95 | struct snd_soc_codec *codec = runtime->codec; | |
96 | struct snd_soc_card *card = runtime->card; | |
97 | struct byt_max98090_private *drv = snd_soc_card_get_drvdata(card); | |
98 | struct snd_soc_jack *jack = &drv->jack; | |
99 | ||
100 | card->dapm.idle_bias_off = true; | |
101 | ||
102 | ret = snd_soc_dai_set_sysclk(runtime->codec_dai, | |
103 | M98090_REG_SYSTEM_CLOCK, | |
104 | 25000000, SND_SOC_CLOCK_IN); | |
105 | if (ret < 0) { | |
106 | dev_err(card->dev, "Can't set codec clock %d\n", ret); | |
107 | return ret; | |
108 | } | |
109 | ||
110 | /* Enable jack detection */ | |
111 | ret = snd_soc_jack_new(codec, "Headphone", SND_JACK_HEADPHONE, jack); | |
112 | if (ret) | |
113 | return ret; | |
114 | ||
115 | ret = snd_soc_jack_add_pins(jack, ARRAY_SIZE(hs_jack_pins), | |
116 | hs_jack_pins); | |
117 | if (ret) | |
118 | return ret; | |
119 | ||
120 | ret = snd_soc_jack_add_gpiods(card->dev->parent, jack, | |
121 | ARRAY_SIZE(hs_jack_gpios), | |
122 | hs_jack_gpios); | |
123 | if (ret) | |
124 | return ret; | |
125 | ||
126 | return max98090_mic_detect(codec, jack); | |
127 | } | |
128 | ||
129 | static struct snd_soc_dai_link byt_max98090_dais[] = { | |
130 | { | |
131 | .name = "Baytrail Audio", | |
132 | .stream_name = "Audio", | |
133 | .cpu_dai_name = "baytrail-pcm-audio", | |
134 | .codec_dai_name = "HiFi", | |
135 | .codec_name = "i2c-193C9890:00", | |
136 | .platform_name = "baytrail-pcm-audio", | |
137 | .init = byt_max98090_init, | |
138 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | | |
139 | SND_SOC_DAIFMT_CBS_CFS, | |
140 | }, | |
141 | }; | |
142 | ||
143 | static struct snd_soc_card byt_max98090_card = { | |
144 | .name = "byt-max98090", | |
145 | .dai_link = byt_max98090_dais, | |
146 | .num_links = ARRAY_SIZE(byt_max98090_dais), | |
147 | .dapm_widgets = byt_max98090_widgets, | |
148 | .num_dapm_widgets = ARRAY_SIZE(byt_max98090_widgets), | |
149 | .dapm_routes = byt_max98090_audio_map, | |
150 | .num_dapm_routes = ARRAY_SIZE(byt_max98090_audio_map), | |
151 | .controls = byt_max98090_controls, | |
152 | .num_controls = ARRAY_SIZE(byt_max98090_controls), | |
153 | }; | |
154 | ||
155 | static int byt_max98090_probe(struct platform_device *pdev) | |
156 | { | |
157 | int ret_val = 0; | |
158 | struct byt_max98090_private *priv; | |
159 | ||
160 | priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC); | |
161 | if (!priv) { | |
162 | dev_err(&pdev->dev, "allocation failed\n"); | |
163 | return -ENOMEM; | |
164 | } | |
165 | ||
166 | byt_max98090_card.dev = &pdev->dev; | |
167 | snd_soc_card_set_drvdata(&byt_max98090_card, priv); | |
168 | ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_max98090_card); | |
169 | if (ret_val) { | |
170 | dev_err(&pdev->dev, | |
171 | "snd_soc_register_card failed %d\n", ret_val); | |
172 | return ret_val; | |
173 | } | |
174 | ||
175 | return ret_val; | |
176 | } | |
177 | ||
178 | static int byt_max98090_remove(struct platform_device *pdev) | |
179 | { | |
180 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
181 | struct byt_max98090_private *priv = snd_soc_card_get_drvdata(card); | |
182 | ||
183 | snd_soc_jack_free_gpios(&priv->jack, ARRAY_SIZE(hs_jack_gpios), | |
184 | hs_jack_gpios); | |
185 | ||
186 | return 0; | |
187 | } | |
188 | ||
189 | static struct platform_driver byt_max98090_driver = { | |
190 | .probe = byt_max98090_probe, | |
191 | .remove = byt_max98090_remove, | |
192 | .driver = { | |
193 | .name = "byt-max98090", | |
194 | .owner = THIS_MODULE, | |
195 | .pm = &snd_soc_pm_ops, | |
196 | }, | |
197 | }; | |
198 | module_platform_driver(byt_max98090_driver) | |
199 | ||
200 | MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver"); | |
201 | MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula"); | |
202 | MODULE_LICENSE("GPL v2"); | |
203 | MODULE_ALIAS("platform:byt-max98090"); |