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1 | /* |
2 | * Intel Baytrail SST RT5640 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/slab.h> | |
21 | #include <sound/pcm.h> | |
22 | #include <sound/pcm_params.h> | |
23 | #include <sound/soc.h> | |
24 | #include <sound/jack.h> | |
25 | #include "../codecs/rt5640.h" | |
26 | ||
27 | #include "sst-dsp.h" | |
28 | ||
29 | static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = { | |
30 | SND_SOC_DAPM_HP("Headphone", NULL), | |
31 | SND_SOC_DAPM_MIC("Headset Mic", NULL), | |
32 | SND_SOC_DAPM_MIC("Internal Mic", NULL), | |
33 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
34 | }; | |
35 | ||
36 | static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = { | |
c9a8e3bd | 37 | {"Headset Mic", NULL, "MICBIAS1"}, |
a4b12990 | 38 | {"IN2P", NULL, "Headset Mic"}, |
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39 | {"DMIC1", NULL, "Internal Mic"}, |
40 | {"Headphone", NULL, "HPOL"}, | |
41 | {"Headphone", NULL, "HPOR"}, | |
42 | {"Speaker", NULL, "SPOLP"}, | |
43 | {"Speaker", NULL, "SPOLN"}, | |
44 | {"Speaker", NULL, "SPORP"}, | |
45 | {"Speaker", NULL, "SPORN"}, | |
46 | }; | |
47 | ||
48 | static const struct snd_kcontrol_new byt_rt5640_controls[] = { | |
49 | SOC_DAPM_PIN_SWITCH("Headphone"), | |
50 | SOC_DAPM_PIN_SWITCH("Headset Mic"), | |
51 | SOC_DAPM_PIN_SWITCH("Internal Mic"), | |
52 | SOC_DAPM_PIN_SWITCH("Speaker"), | |
53 | }; | |
54 | ||
55 | static int byt_rt5640_hw_params(struct snd_pcm_substream *substream, | |
56 | struct snd_pcm_hw_params *params) | |
57 | { | |
58 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
59 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
60 | int ret; | |
61 | ||
62 | ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1, | |
63 | params_rate(params) * 256, | |
64 | SND_SOC_CLOCK_IN); | |
65 | if (ret < 0) { | |
66 | dev_err(codec_dai->dev, "can't set codec clock %d\n", ret); | |
67 | return ret; | |
68 | } | |
69 | ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1, | |
70 | params_rate(params) * 64, | |
71 | params_rate(params) * 256); | |
72 | if (ret < 0) { | |
73 | dev_err(codec_dai->dev, "can't set codec pll: %d\n", ret); | |
74 | return ret; | |
75 | } | |
76 | return 0; | |
77 | } | |
78 | ||
79 | static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime) | |
80 | { | |
81 | int ret; | |
82 | struct snd_soc_codec *codec = runtime->codec; | |
83 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
84 | struct snd_soc_card *card = runtime->card; | |
85 | ||
86 | card->dapm.idle_bias_off = true; | |
87 | ||
88 | ret = snd_soc_add_card_controls(card, byt_rt5640_controls, | |
89 | ARRAY_SIZE(byt_rt5640_controls)); | |
90 | if (ret) { | |
91 | dev_err(card->dev, "unable to add card controls\n"); | |
92 | return ret; | |
93 | } | |
94 | ||
95 | snd_soc_dapm_ignore_suspend(dapm, "HPOL"); | |
96 | snd_soc_dapm_ignore_suspend(dapm, "HPOR"); | |
97 | ||
98 | snd_soc_dapm_ignore_suspend(dapm, "SPOLP"); | |
99 | snd_soc_dapm_ignore_suspend(dapm, "SPOLN"); | |
100 | snd_soc_dapm_ignore_suspend(dapm, "SPORP"); | |
101 | snd_soc_dapm_ignore_suspend(dapm, "SPORN"); | |
102 | ||
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103 | return ret; |
104 | } | |
105 | ||
106 | static struct snd_soc_ops byt_rt5640_ops = { | |
107 | .hw_params = byt_rt5640_hw_params, | |
108 | }; | |
109 | ||
110 | static struct snd_soc_dai_link byt_rt5640_dais[] = { | |
111 | { | |
112 | .name = "Baytrail Audio", | |
113 | .stream_name = "Audio", | |
49fee178 | 114 | .cpu_dai_name = "baytrail-pcm-audio", |
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115 | .codec_dai_name = "rt5640-aif1", |
116 | .codec_name = "i2c-10EC5640:00", | |
117 | .platform_name = "baytrail-pcm-audio", | |
118 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | | |
119 | SND_SOC_DAIFMT_CBS_CFS, | |
120 | .init = byt_rt5640_init, | |
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121 | .ops = &byt_rt5640_ops, |
122 | }, | |
123 | }; | |
124 | ||
125 | static struct snd_soc_card byt_rt5640_card = { | |
126 | .name = "byt-rt5640", | |
127 | .dai_link = byt_rt5640_dais, | |
128 | .num_links = ARRAY_SIZE(byt_rt5640_dais), | |
129 | .dapm_widgets = byt_rt5640_widgets, | |
130 | .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets), | |
131 | .dapm_routes = byt_rt5640_audio_map, | |
132 | .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map), | |
133 | }; | |
134 | ||
135 | static int byt_rt5640_probe(struct platform_device *pdev) | |
136 | { | |
137 | struct snd_soc_card *card = &byt_rt5640_card; | |
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138 | |
139 | card->dev = &pdev->dev; | |
8eb776ab | 140 | return devm_snd_soc_register_card(&pdev->dev, card); |
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141 | } |
142 | ||
143 | static struct platform_driver byt_rt5640_audio = { | |
144 | .probe = byt_rt5640_probe, | |
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145 | .driver = { |
146 | .name = "byt-rt5640", | |
147 | .owner = THIS_MODULE, | |
4af72f4e | 148 | .pm = &snd_soc_pm_ops, |
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149 | }, |
150 | }; | |
151 | module_platform_driver(byt_rt5640_audio) | |
152 | ||
153 | MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver"); | |
154 | MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula"); | |
155 | MODULE_LICENSE("GPL v2"); | |
156 | MODULE_ALIAS("platform:byt-rt5640"); |