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         {"Headset Mic", NULL, "MICBIAS1"},
  38         {"IN2P", NULL, "Headset Mic"},
  39         {"IN2N", NULL, "Headset Mic"},
  40         {"DMIC1", NULL, "Internal Mic"},
  41         {"Headphone", NULL, "HPOL"},
  42         {"Headphone", NULL, "HPOR"},
  43         {"Speaker", NULL, "SPOLP"},
  44         {"Speaker", NULL, "SPOLN"},
  45         {"Speaker", NULL, "SPORP"},
  46         {"Speaker", NULL, "SPORN"},
  47 };
  48
  49 static const struct snd_kcontrol_new byt_rt5640_controls[] = {
  50         SOC_DAPM_PIN_SWITCH("Headphone"),
  51         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  52         SOC_DAPM_PIN_SWITCH("Internal Mic"),
  53         SOC_DAPM_PIN_SWITCH("Speaker"),
  54 };
  55
  56 static int byt_rt5640_hw_params(struct snd_pcm_substream *substream,
  57                                 struct snd_pcm_hw_params *params)
  58 {
  59         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  60         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  61         int ret;
  62
  63         ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
  64                                      params_rate(params) * 256,
  65                                      SND_SOC_CLOCK_IN);
  66         if (ret < 0) {
  67                 dev_err(codec_dai->dev, "can't set codec clock %d\n", ret);
  68                 return ret;
  69         }
  70         ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1,
  71                                   params_rate(params) * 64,
  72                                   params_rate(params) * 256);
  73         if (ret < 0) {
  74                 dev_err(codec_dai->dev, "can't set codec pll: %d\n", ret);
  75                 return ret;
  76         }
  77         return 0;
  78 }
  79
  80 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
  81 {
  82         int ret;
  83         struct snd_soc_codec *codec = runtime->codec;
  84         struct snd_soc_dapm_context *dapm = &codec->dapm;
  85         struct snd_soc_card *card = runtime->card;
  86
  87         card->dapm.idle_bias_off = true;
  88
  89         ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
  90                                         ARRAY_SIZE(byt_rt5640_controls));
  91         if (ret) {
  92                 dev_err(card->dev, "unable to add card controls\n");
  93                 return ret;
  94         }
  95
  96         snd_soc_dapm_ignore_suspend(dapm, "HPOL");
  97         snd_soc_dapm_ignore_suspend(dapm, "HPOR");
  98
  99         snd_soc_dapm_ignore_suspend(dapm, "SPOLP");
 100         snd_soc_dapm_ignore_suspend(dapm, "SPOLN");
 101         snd_soc_dapm_ignore_suspend(dapm, "SPORP");
 102         snd_soc_dapm_ignore_suspend(dapm, "SPORN");
 103
 104         return ret;
 105 }
 106
 107 static struct snd_soc_ops byt_rt5640_ops = {
 108         .hw_params = byt_rt5640_hw_params,
 109 };
 110
 111 static struct snd_soc_dai_link byt_rt5640_dais[] = {
 112         {
 113                 .name = "Baytrail Audio",
 114                 .stream_name = "Audio",
 115                 .cpu_dai_name = "baytrail-pcm-audio",
 116                 .codec_dai_name = "rt5640-aif1",
 117                 .codec_name = "i2c-10EC5640:00",
 118                 .platform_name = "baytrail-pcm-audio",
 119                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 120                            SND_SOC_DAIFMT_CBS_CFS,
 121                 .init = byt_rt5640_init,
 122                 .ops = &byt_rt5640_ops,
 123         },
 124 };
 125
 126 static struct snd_soc_card byt_rt5640_card = {
 127         .name = "byt-rt5640",
 128         .dai_link = byt_rt5640_dais,
 129         .num_links = ARRAY_SIZE(byt_rt5640_dais),
 130         .dapm_widgets = byt_rt5640_widgets,
 131         .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
 132         .dapm_routes = byt_rt5640_audio_map,
 133         .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
 134 };
 135
 136 static int byt_rt5640_probe(struct platform_device *pdev)
 137 {
 138         struct snd_soc_card *card = &byt_rt5640_card;
 139
 140         card->dev = &pdev->dev;
 141         return devm_snd_soc_register_card(&pdev->dev, card);
 142 }
 143
 144 static struct platform_driver byt_rt5640_audio = {
 145         .probe = byt_rt5640_probe,
 146         .driver = {
 147                 .name = "byt-rt5640",
 148                 .owner = THIS_MODULE,
 149                 .pm = &snd_soc_pm_ops,
 150         },
 151 };
 152 module_platform_driver(byt_rt5640_audio)
 153
 154 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver");
 155 MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula");
 156 MODULE_LICENSE("GPL v2");
 157 MODULE_ALIAS("platform:byt-rt5640");