sound/soc/intel/byt-rt5640.c

   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[] = {
  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"},
  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
 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",
 114                 .cpu_dai_name = "baytrail-pcm-audio",
 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,
 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;
 138
 139         card->dev = &pdev->dev;
 140         return devm_snd_soc_register_card(&pdev->dev, card);
 141 }
 142
 143 static struct platform_driver byt_rt5640_audio = {
 144         .probe = byt_rt5640_probe,
 145         .driver = {
 146                 .name = "byt-rt5640",
 147                 .owner = THIS_MODULE,
 148                 .pm = &snd_soc_pm_ops,
 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");