sound/soc/samsung/lowland.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 //
   3 // Lowland audio support
   4 //
   5 // Copyright 2011 Wolfson Microelectronics
   6
   7 #include <sound/soc.h>
   8 #include <sound/soc-dapm.h>
   9 #include <sound/jack.h>
  10 #include <linux/gpio.h>
  11 #include <linux/module.h>
  12
  13 #include "../codecs/wm5100.h"
  14 #include "../codecs/wm9081.h"
  15
  16 #define MCLK1_RATE (44100 * 512)
  17 #define CLKOUT_RATE (44100 * 256)
  18
  19 static struct snd_soc_jack lowland_headset;
  20
  21 /* Headset jack detection DAPM pins */
  22 static struct snd_soc_jack_pin lowland_headset_pins[] = {
  23         {
  24                 .pin = "Headphone",
  25                 .mask = SND_JACK_HEADPHONE | SND_JACK_LINEOUT,
  26         },
  27         {
  28                 .pin = "Headset Mic",
  29                 .mask = SND_JACK_MICROPHONE,
  30         },
  31 };
  32
  33 static int lowland_wm5100_init(struct snd_soc_pcm_runtime *rtd)
  34 {
  35         struct snd_soc_component *component = rtd->codec_dai->component;
  36         int ret;
  37
  38         ret = snd_soc_component_set_sysclk(component, WM5100_CLK_SYSCLK,
  39                                        WM5100_CLKSRC_MCLK1, MCLK1_RATE,
  40                                        SND_SOC_CLOCK_IN);
  41         if (ret < 0) {
  42                 pr_err("Failed to set SYSCLK clock source: %d\n", ret);
  43                 return ret;
  44         }
  45
  46         /* Clock OPCLK, used by the other audio components. */
  47         ret = snd_soc_component_set_sysclk(component, WM5100_CLK_OPCLK, 0,
  48                                        CLKOUT_RATE, 0);
  49         if (ret < 0) {
  50                 pr_err("Failed to set OPCLK rate: %d\n", ret);
  51                 return ret;
  52         }
  53
  54         ret = snd_soc_card_jack_new(rtd->card, "Headset", SND_JACK_LINEOUT |
  55                                     SND_JACK_HEADSET | SND_JACK_BTN_0,
  56                                     &lowland_headset, lowland_headset_pins,
  57                                     ARRAY_SIZE(lowland_headset_pins));
  58         if (ret)
  59                 return ret;
  60
  61         wm5100_detect(component, &lowland_headset);
  62
  63         return 0;
  64 }
  65
  66 static int lowland_wm9081_init(struct snd_soc_pcm_runtime *rtd)
  67 {
  68         struct snd_soc_component *component = rtd->codec_dai->component;
  69
  70         snd_soc_dapm_nc_pin(&rtd->card->dapm, "LINEOUT");
  71
  72         /* At any time the WM9081 is active it will have this clock */
  73         return snd_soc_component_set_sysclk(component, WM9081_SYSCLK_MCLK, 0,
  74                                         CLKOUT_RATE, 0);
  75 }
  76
  77 static const struct snd_soc_pcm_stream sub_params = {
  78         .formats = SNDRV_PCM_FMTBIT_S32_LE,
  79         .rate_min = 44100,
  80         .rate_max = 44100,
  81         .channels_min = 2,
  82         .channels_max = 2,
  83 };
  84
  85 static struct snd_soc_dai_link lowland_dai[] = {
  86         {
  87                 .name = "CPU",
  88                 .stream_name = "CPU",
  89                 .cpu_dai_name = "samsung-i2s.0",
  90                 .codec_dai_name = "wm5100-aif1",
  91                 .platform_name = "samsung-i2s.0",
  92                 .codec_name = "wm5100.1-001a",
  93                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
  94                                 SND_SOC_DAIFMT_CBM_CFM,
  95                 .init = lowland_wm5100_init,
  96         },
  97         {
  98                 .name = "Baseband",
  99                 .stream_name = "Baseband",
 100                 .cpu_dai_name = "wm5100-aif2",
 101                 .codec_dai_name = "wm1250-ev1",
 102                 .codec_name = "wm1250-ev1.1-0027",
 103                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 104                                 SND_SOC_DAIFMT_CBM_CFM,
 105                 .ignore_suspend = 1,
 106         },
 107         {
 108                 .name = "Sub Speaker",
 109                 .stream_name = "Sub Speaker",
 110                 .cpu_dai_name = "wm5100-aif3",
 111                 .codec_dai_name = "wm9081-hifi",
 112                 .codec_name = "wm9081.1-006c",
 113                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 114                                 SND_SOC_DAIFMT_CBM_CFM,
 115                 .ignore_suspend = 1,
 116                 .params = &sub_params,
 117                 .init = lowland_wm9081_init,
 118         },
 119 };
 120
 121 static struct snd_soc_codec_conf lowland_codec_conf[] = {
 122         {
 123                 .dev_name = "wm9081.1-006c",
 124                 .name_prefix = "Sub",
 125         },
 126 };
 127
 128 static const struct snd_kcontrol_new controls[] = {
 129         SOC_DAPM_PIN_SWITCH("Main Speaker"),
 130         SOC_DAPM_PIN_SWITCH("Main DMIC"),
 131         SOC_DAPM_PIN_SWITCH("Main AMIC"),
 132         SOC_DAPM_PIN_SWITCH("WM1250 Input"),
 133         SOC_DAPM_PIN_SWITCH("WM1250 Output"),
 134         SOC_DAPM_PIN_SWITCH("Headphone"),
 135 };
 136
 137 static struct snd_soc_dapm_widget widgets[] = {
 138         SND_SOC_DAPM_HP("Headphone", NULL),
 139         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 140
 141         SND_SOC_DAPM_SPK("Main Speaker", NULL),
 142
 143         SND_SOC_DAPM_MIC("Main AMIC", NULL),
 144         SND_SOC_DAPM_MIC("Main DMIC", NULL),
 145 };
 146
 147 static struct snd_soc_dapm_route audio_paths[] = {
 148         { "Sub IN1", NULL, "HPOUT2L" },
 149         { "Sub IN2", NULL, "HPOUT2R" },
 150
 151         { "Main Speaker", NULL, "Sub SPKN" },
 152         { "Main Speaker", NULL, "Sub SPKP" },
 153         { "Main Speaker", NULL, "SPKDAT1" },
 154 };
 155
 156 static struct snd_soc_card lowland = {
 157         .name = "Lowland",
 158         .owner = THIS_MODULE,
 159         .dai_link = lowland_dai,
 160         .num_links = ARRAY_SIZE(lowland_dai),
 161         .codec_conf = lowland_codec_conf,
 162         .num_configs = ARRAY_SIZE(lowland_codec_conf),
 163
 164         .controls = controls,
 165         .num_controls = ARRAY_SIZE(controls),
 166         .dapm_widgets = widgets,
 167         .num_dapm_widgets = ARRAY_SIZE(widgets),
 168         .dapm_routes = audio_paths,
 169         .num_dapm_routes = ARRAY_SIZE(audio_paths),
 170 };
 171
 172 static int lowland_probe(struct platform_device *pdev)
 173 {
 174         struct snd_soc_card *card = &lowland;
 175         int ret;
 176
 177         card->dev = &pdev->dev;
 178
 179         ret = devm_snd_soc_register_card(&pdev->dev, card);
 180         if (ret)
 181                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 182                         ret);
 183
 184         return ret;
 185 }
 186
 187 static struct platform_driver lowland_driver = {
 188         .driver = {
 189                 .name = "lowland",
 190                 .pm = &snd_soc_pm_ops,
 191         },
 192         .probe = lowland_probe,
 193 };
 194
 195 module_platform_driver(lowland_driver);
 196
 197 MODULE_DESCRIPTION("Lowland audio support");
 198 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
 199 MODULE_LICENSE("GPL");
 200 MODULE_ALIAS("platform:lowland");