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");
111 static struct snd_soc_ops byt_rt5640_ops
= {
112 .hw_params
= byt_rt5640_hw_params
,
115 static struct snd_soc_dai_link byt_rt5640_dais
[] = {
117 .name
= "Baytrail Audio",
118 .stream_name
= "Audio",
119 .cpu_dai_name
= "Front-cpu-dai",
120 .codec_dai_name
= "rt5640-aif1",
121 .codec_name
= "i2c-10EC5640:00",
122 .platform_name
= "baytrail-pcm-audio",
123 .dai_fmt
= SND_SOC_DAIFMT_I2S
| SND_SOC_DAIFMT_NB_NF
|
124 SND_SOC_DAIFMT_CBS_CFS
,
125 .init
= byt_rt5640_init
,
127 .ops
= &byt_rt5640_ops
,
130 .name
= "Baytrail Voice",
131 .stream_name
= "Voice",
132 .cpu_dai_name
= "Mic1-cpu-dai",
133 .codec_dai_name
= "rt5640-aif1",
134 .codec_name
= "i2c-10EC5640:00",
135 .platform_name
= "baytrail-pcm-audio",
136 .dai_fmt
= SND_SOC_DAIFMT_I2S
| SND_SOC_DAIFMT_NB_NF
|
137 SND_SOC_DAIFMT_CBS_CFS
,
140 .ops
= &byt_rt5640_ops
,
144 static struct snd_soc_card byt_rt5640_card
= {
145 .name
= "byt-rt5640",
146 .dai_link
= byt_rt5640_dais
,
147 .num_links
= ARRAY_SIZE(byt_rt5640_dais
),
148 .dapm_widgets
= byt_rt5640_widgets
,
149 .num_dapm_widgets
= ARRAY_SIZE(byt_rt5640_widgets
),
150 .dapm_routes
= byt_rt5640_audio_map
,
151 .num_dapm_routes
= ARRAY_SIZE(byt_rt5640_audio_map
),
154 static int byt_rt5640_probe(struct platform_device
*pdev
)
156 struct snd_soc_card
*card
= &byt_rt5640_card
;
157 struct device
*dev
= &pdev
->dev
;
159 card
->dev
= &pdev
->dev
;
160 dev_set_drvdata(dev
, card
);
161 return snd_soc_register_card(card
);
164 static int byt_rt5640_remove(struct platform_device
*pdev
)
166 struct snd_soc_card
*card
= platform_get_drvdata(pdev
);
168 snd_soc_unregister_card(card
);
173 static struct platform_driver byt_rt5640_audio
= {
174 .probe
= byt_rt5640_probe
,
175 .remove
= byt_rt5640_remove
,
177 .name
= "byt-rt5640",
178 .owner
= THIS_MODULE
,
181 module_platform_driver(byt_rt5640_audio
)
183 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver");
184 MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula");
185 MODULE_LICENSE("GPL v2");
186 MODULE_ALIAS("platform:byt-rt5640");