2 * Intel Baytrail SST RT5640 machine driver
3 * Copyright (c) 2014, Intel Corporation.
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.
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
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"
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),
36 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
37 {"IN2P", NULL, "Headset Mic"},
38 {"IN2N", NULL, "Headset Mic"},
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"},
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"),
55 static int byt_rt5640_hw_params(struct snd_pcm_substream *substream,
56 struct snd_pcm_hw_params *params)
58 struct snd_soc_pcm_runtime *rtd = substream->private_data;
59 struct snd_soc_dai *codec_dai = rtd->codec_dai;
62 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
63 params_rate(params) * 256,
66 dev_err(codec_dai->dev, "can't set codec clock %d\n", ret);
69 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1,
70 params_rate(params) * 64,
71 params_rate(params) * 256);
73 dev_err(codec_dai->dev, "can't set codec pll: %d\n", ret);
79 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
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;
86 card->dapm.idle_bias_off = true;
88 ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
89 ARRAY_SIZE(byt_rt5640_controls));
91 dev_err(card->dev, "unable to add card controls\n");
95 snd_soc_dapm_ignore_suspend(dapm, "HPOL");
96 snd_soc_dapm_ignore_suspend(dapm, "HPOR");
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");
103 snd_soc_dapm_enable_pin(dapm, "Headset Mic");
104 snd_soc_dapm_enable_pin(dapm, "Headphone");
105 snd_soc_dapm_enable_pin(dapm, "Speaker");
106 snd_soc_dapm_enable_pin(dapm, "Internal Mic");
108 snd_soc_dapm_sync(dapm);
112 static struct snd_soc_ops byt_rt5640_ops = {
113 .hw_params = byt_rt5640_hw_params,
116 static struct snd_soc_dai_link byt_rt5640_dais[] = {
118 .name = "Baytrail Audio",
119 .stream_name = "Audio",
120 .cpu_dai_name = "Front-cpu-dai",
121 .codec_dai_name = "rt5640-aif1",
122 .codec_name = "i2c-10EC5640:00",
123 .platform_name = "baytrail-pcm-audio",
124 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
125 SND_SOC_DAIFMT_CBS_CFS,
126 .init = byt_rt5640_init,
128 .ops = &byt_rt5640_ops,
131 .name = "Baytrail Voice",
132 .stream_name = "Voice",
133 .cpu_dai_name = "Mic1-cpu-dai",
134 .codec_dai_name = "rt5640-aif1",
135 .codec_name = "i2c-10EC5640:00",
136 .platform_name = "baytrail-pcm-audio",
137 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
138 SND_SOC_DAIFMT_CBS_CFS,
141 .ops = &byt_rt5640_ops,
145 static struct snd_soc_card byt_rt5640_card = {
146 .name = "byt-rt5640",
147 .dai_link = byt_rt5640_dais,
148 .num_links = ARRAY_SIZE(byt_rt5640_dais),
149 .dapm_widgets = byt_rt5640_widgets,
150 .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
151 .dapm_routes = byt_rt5640_audio_map,
152 .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
155 static int byt_rt5640_probe(struct platform_device *pdev)
157 struct snd_soc_card *card = &byt_rt5640_card;
158 struct device *dev = &pdev->dev;
160 card->dev = &pdev->dev;
161 dev_set_drvdata(dev, card);
162 return snd_soc_register_card(card);
165 static int byt_rt5640_remove(struct platform_device *pdev)
167 struct snd_soc_card *card = platform_get_drvdata(pdev);
169 snd_soc_unregister_card(card);
174 static struct platform_driver byt_rt5640_audio = {
175 .probe = byt_rt5640_probe,
176 .remove = byt_rt5640_remove,
178 .name = "byt-rt5640",
179 .owner = THIS_MODULE,
182 module_platform_driver(byt_rt5640_audio)
184 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver");
185 MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula");
186 MODULE_LICENSE("GPL v2");
187 MODULE_ALIAS("platform:byt-rt5640");