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_jack_new(codec, "Headset",
  60                                SND_JACK_LINEOUT | SND_JACK_HEADSET |
  61                                SND_JACK_BTN_0,
  62                                &lowland_headset);
  63         if (ret)
  64                 return ret;
  65
  66         ret = snd_soc_jack_add_pins(&lowland_headset,
  67                                     ARRAY_SIZE(lowland_headset_pins),
  68                                     lowland_headset_pins);
  69         if (ret)
  70                 return ret;
  71
  72         wm5100_detect(codec, &lowland_headset);
  73
  74         return 0;
  75 }
  76
  77 static int lowland_wm9081_init(struct snd_soc_pcm_runtime *rtd)
  78 {
  79         struct snd_soc_codec *codec = rtd->codec;
  80
  81         snd_soc_dapm_nc_pin(&codec->dapm, "LINEOUT");
  82
  83         /* At any time the WM9081 is active it will have this clock */
  84         return snd_soc_codec_set_sysclk(codec, WM9081_SYSCLK_MCLK, 0,
  85                                         CLKOUT_RATE, 0);
  86 }
  87
  88 static const struct snd_soc_pcm_stream sub_params = {
  89         .formats = SNDRV_PCM_FMTBIT_S32_LE,
  90         .rate_min = 44100,
  91         .rate_max = 44100,
  92         .channels_min = 2,
  93         .channels_max = 2,
  94 };
  95
  96 static struct snd_soc_dai_link lowland_dai[] = {
  97         {
  98                 .name = "CPU",
  99                 .stream_name = "CPU",
 100                 .cpu_dai_name = "samsung-i2s.0",
 101                 .codec_dai_name = "wm5100-aif1",
 102                 .platform_name = "samsung-i2s.0",
 103                 .codec_name = "wm5100.1-001a",
 104                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 105                                 SND_SOC_DAIFMT_CBM_CFM,
 106                 .init = lowland_wm5100_init,
 107         },
 108         {
 109                 .name = "Baseband",
 110                 .stream_name = "Baseband",
 111                 .cpu_dai_name = "wm5100-aif2",
 112                 .codec_dai_name = "wm1250-ev1",
 113                 .codec_name = "wm1250-ev1.1-0027",
 114                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 115                                 SND_SOC_DAIFMT_CBM_CFM,
 116                 .ignore_suspend = 1,
 117         },
 118         {
 119                 .name = "Sub Speaker",
 120                 .stream_name = "Sub Speaker",
 121                 .cpu_dai_name = "wm5100-aif3",
 122                 .codec_dai_name = "wm9081-hifi",
 123                 .codec_name = "wm9081.1-006c",
 124                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 125                                 SND_SOC_DAIFMT_CBM_CFM,
 126                 .ignore_suspend = 1,
 127                 .params = &sub_params,
 128                 .init = lowland_wm9081_init,
 129         },
 130 };
 131
 132 static struct snd_soc_codec_conf lowland_codec_conf[] = {
 133         {
 134                 .dev_name = "wm9081.1-006c",
 135                 .name_prefix = "Sub",
 136         },
 137 };
 138
 139 static const struct snd_kcontrol_new controls[] = {
 140         SOC_DAPM_PIN_SWITCH("Main Speaker"),
 141         SOC_DAPM_PIN_SWITCH("Main DMIC"),
 142         SOC_DAPM_PIN_SWITCH("Main AMIC"),
 143         SOC_DAPM_PIN_SWITCH("WM1250 Input"),
 144         SOC_DAPM_PIN_SWITCH("WM1250 Output"),
 145         SOC_DAPM_PIN_SWITCH("Headphone"),
 146 };
 147
 148 static struct snd_soc_dapm_widget widgets[] = {
 149         SND_SOC_DAPM_HP("Headphone", NULL),
 150         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 151
 152         SND_SOC_DAPM_SPK("Main Speaker", NULL),
 153
 154         SND_SOC_DAPM_MIC("Main AMIC", NULL),
 155         SND_SOC_DAPM_MIC("Main DMIC", NULL),
 156 };
 157
 158 static struct snd_soc_dapm_route audio_paths[] = {
 159         { "Sub IN1", NULL, "HPOUT2L" },
 160         { "Sub IN2", NULL, "HPOUT2R" },
 161
 162         { "Main Speaker", NULL, "Sub SPKN" },
 163         { "Main Speaker", NULL, "Sub SPKP" },
 164         { "Main Speaker", NULL, "SPKDAT1" },
 165 };
 166
 167 static struct snd_soc_card lowland = {
 168         .name = "Lowland",
 169         .owner = THIS_MODULE,
 170         .dai_link = lowland_dai,
 171         .num_links = ARRAY_SIZE(lowland_dai),
 172         .codec_conf = lowland_codec_conf,
 173         .num_configs = ARRAY_SIZE(lowland_codec_conf),
 174
 175         .controls = controls,
 176         .num_controls = ARRAY_SIZE(controls),
 177         .dapm_widgets = widgets,
 178         .num_dapm_widgets = ARRAY_SIZE(widgets),
 179         .dapm_routes = audio_paths,
 180         .num_dapm_routes = ARRAY_SIZE(audio_paths),
 181 };
 182
 183 static int lowland_probe(struct platform_device *pdev)
 184 {
 185         struct snd_soc_card *card = &lowland;
 186         int ret;
 187
 188         card->dev = &pdev->dev;
 189
 190         ret = snd_soc_register_card(card);
 191         if (ret) {
 192                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 193                         ret);
 194                 return ret;
 195         }
 196
 197         return 0;
 198 }
 199
 200 static int lowland_remove(struct platform_device *pdev)
 201 {
 202         struct snd_soc_card *card = platform_get_drvdata(pdev);
 203
 204         snd_soc_unregister_card(card);
 205
 206         return 0;
 207 }
 208
 209 static struct platform_driver lowland_driver = {
 210         .driver = {
 211                 .name = "lowland",
 212                 .owner = THIS_MODULE,
 213                 .pm = &snd_soc_pm_ops,
 214         },
 215         .probe = lowland_probe,
 216         .remove = lowland_remove,
 217 };
 218
 219 module_platform_driver(lowland_driver);
 220
 221 MODULE_DESCRIPTION("Lowland audio support");
 222 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
 223 MODULE_LICENSE("GPL");
 224 MODULE_ALIAS("platform:lowland");