kernel/sound/soc/samsung/lowland.c

   1 /*
   2  * Lowland audio support
   3  *
   4  * Copyright 2011 Wolfson Microelectronics
   5  *
   6  * This program is free software; you can redistribute  it and/or modify it
   7  * under  the terms of  the GNU General  Public License as published by the
   8  * Free Software Foundation;  either version 2 of the  License, or (at your
   9  * option) any later version.
  10  */
  11
  12 #include <sound/soc.h>
  13 #include <sound/soc-dapm.h>
  14 #include <sound/jack.h>
  15 #include <linux/gpio.h>
  16 #include <linux/module.h>
  17
  18 #include "../codecs/wm5100.h"
  19 #include "../codecs/wm9081.h"
  20
  21 #define MCLK1_RATE (44100 * 512)
  22 #define CLKOUT_RATE (44100 * 256)
  23
  24 static struct snd_soc_jack lowland_headset;
  25
  26 /* Headset jack detection DAPM pins */
  27 static struct snd_soc_jack_pin lowland_headset_pins[] = {
  28         {
  29                 .pin = "Headphone",
  30                 .mask = SND_JACK_HEADPHONE | SND_JACK_LINEOUT,
  31         },
  32         {
  33                 .pin = "Headset Mic",
  34                 .mask = SND_JACK_MICROPHONE,
  35         },
  36 };
  37
  38 static int lowland_wm5100_init(struct snd_soc_pcm_runtime *rtd)
  39 {
  40         struct snd_soc_codec *codec = rtd->codec;
  41         int ret;
  42
  43         ret = snd_soc_codec_set_sysclk(codec, WM5100_CLK_SYSCLK,
  44                                        WM5100_CLKSRC_MCLK1, MCLK1_RATE,
  45                                        SND_SOC_CLOCK_IN);
  46         if (ret < 0) {
  47                 pr_err("Failed to set SYSCLK clock source: %d\n", ret);
  48                 return ret;
  49         }
  50
  51         /* Clock OPCLK, used by the other audio components. */
  52         ret = snd_soc_codec_set_sysclk(codec, WM5100_CLK_OPCLK, 0,
  53                                        CLKOUT_RATE, 0);
  54         if (ret < 0) {
  55                 pr_err("Failed to set OPCLK rate: %d\n", ret);
  56                 return ret;
  57         }
  58
  59         ret = snd_soc_card_jack_new(rtd->card, "Headset", SND_JACK_LINEOUT |
  60                                     SND_JACK_HEADSET | SND_JACK_BTN_0,
  61                                     &lowland_headset, lowland_headset_pins,
  62                                     ARRAY_SIZE(lowland_headset_pins));
  63         if (ret)
  64                 return ret;
  65
  66         wm5100_detect(codec, &lowland_headset);
  67
  68         return 0;
  69 }
  70
  71 static int lowland_wm9081_init(struct snd_soc_pcm_runtime *rtd)
  72 {
  73         struct snd_soc_codec *codec = rtd->codec;
  74
  75         snd_soc_dapm_nc_pin(&codec->dapm, "LINEOUT");
  76
  77         /* At any time the WM9081 is active it will have this clock */
  78         return snd_soc_codec_set_sysclk(codec, WM9081_SYSCLK_MCLK, 0,
  79                                         CLKOUT_RATE, 0);
  80 }
  81
  82 static const struct snd_soc_pcm_stream sub_params = {
  83         .formats = SNDRV_PCM_FMTBIT_S32_LE,
  84         .rate_min = 44100,
  85         .rate_max = 44100,
  86         .channels_min = 2,
  87         .channels_max = 2,
  88 };
  89
  90 static struct snd_soc_dai_link lowland_dai[] = {
  91         {
  92                 .name = "CPU",
  93                 .stream_name = "CPU",
  94                 .cpu_dai_name = "samsung-i2s.0",
  95                 .codec_dai_name = "wm5100-aif1",
  96                 .platform_name = "samsung-i2s.0",
  97                 .codec_name = "wm5100.1-001a",
  98                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
  99                                 SND_SOC_DAIFMT_CBM_CFM,
 100                 .init = lowland_wm5100_init,
 101         },
 102         {
 103                 .name = "Baseband",
 104                 .stream_name = "Baseband",
 105                 .cpu_dai_name = "wm5100-aif2",
 106                 .codec_dai_name = "wm1250-ev1",
 107                 .codec_name = "wm1250-ev1.1-0027",
 108                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 109                                 SND_SOC_DAIFMT_CBM_CFM,
 110                 .ignore_suspend = 1,
 111         },
 112         {
 113                 .name = "Sub Speaker",
 114                 .stream_name = "Sub Speaker",
 115                 .cpu_dai_name = "wm5100-aif3",
 116                 .codec_dai_name = "wm9081-hifi",
 117                 .codec_name = "wm9081.1-006c",
 118                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 119                                 SND_SOC_DAIFMT_CBM_CFM,
 120                 .ignore_suspend = 1,
 121                 .params = &sub_params,
 122                 .init = lowland_wm9081_init,
 123         },
 124 };
 125
 126 static struct snd_soc_codec_conf lowland_codec_conf[] = {
 127         {
 128                 .dev_name = "wm9081.1-006c",
 129                 .name_prefix = "Sub",
 130         },
 131 };
 132
 133 static const struct snd_kcontrol_new controls[] = {
 134         SOC_DAPM_PIN_SWITCH("Main Speaker"),
 135         SOC_DAPM_PIN_SWITCH("Main DMIC"),
 136         SOC_DAPM_PIN_SWITCH("Main AMIC"),
 137         SOC_DAPM_PIN_SWITCH("WM1250 Input"),
 138         SOC_DAPM_PIN_SWITCH("WM1250 Output"),
 139         SOC_DAPM_PIN_SWITCH("Headphone"),
 140 };
 141
 142 static struct snd_soc_dapm_widget widgets[] = {
 143         SND_SOC_DAPM_HP("Headphone", NULL),
 144         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 145
 146         SND_SOC_DAPM_SPK("Main Speaker", NULL),
 147
 148         SND_SOC_DAPM_MIC("Main AMIC", NULL),
 149         SND_SOC_DAPM_MIC("Main DMIC", NULL),
 150 };
 151
 152 static struct snd_soc_dapm_route audio_paths[] = {
 153         { "Sub IN1", NULL, "HPOUT2L" },
 154         { "Sub IN2", NULL, "HPOUT2R" },
 155
 156         { "Main Speaker", NULL, "Sub SPKN" },
 157         { "Main Speaker", NULL, "Sub SPKP" },
 158         { "Main Speaker", NULL, "SPKDAT1" },
 159 };
 160
 161 static struct snd_soc_card lowland = {
 162         .name = "Lowland",
 163         .owner = THIS_MODULE,
 164         .dai_link = lowland_dai,
 165         .num_links = ARRAY_SIZE(lowland_dai),
 166         .codec_conf = lowland_codec_conf,
 167         .num_configs = ARRAY_SIZE(lowland_codec_conf),
 168
 169         .controls = controls,
 170         .num_controls = ARRAY_SIZE(controls),
 171         .dapm_widgets = widgets,
 172         .num_dapm_widgets = ARRAY_SIZE(widgets),
 173         .dapm_routes = audio_paths,
 174         .num_dapm_routes = ARRAY_SIZE(audio_paths),
 175 };
 176
 177 static int lowland_probe(struct platform_device *pdev)
 178 {
 179         struct snd_soc_card *card = &lowland;
 180         int ret;
 181
 182         card->dev = &pdev->dev;
 183
 184         ret = devm_snd_soc_register_card(&pdev->dev, card);
 185         if (ret)
 186                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 187                         ret);
 188
 189         return ret;
 190 }
 191
 192 static struct platform_driver lowland_driver = {
 193         .driver = {
 194                 .name = "lowland",
 195                 .pm = &snd_soc_pm_ops,
 196         },
 197         .probe = lowland_probe,
 198 };
 199
 200 module_platform_driver(lowland_driver);
 201
 202 MODULE_DESCRIPTION("Lowland audio support");
 203 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
 204 MODULE_LICENSE("GPL");
 205 MODULE_ALIAS("platform:lowland");