linux/sound/soc/samsung/lowland.c
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   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
  24static struct snd_soc_jack lowland_headset;
  25
  26/* Headset jack detection DAPM pins */
  27static 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
  38static int lowland_wm5100_init(struct snd_soc_pcm_runtime *rtd)
  39{
  40        struct snd_soc_component *component = rtd->codec_dai->component;
  41        int ret;
  42
  43        ret = snd_soc_component_set_sysclk(component, 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_component_set_sysclk(component, 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(component, &lowland_headset);
  67
  68        return 0;
  69}
  70
  71static int lowland_wm9081_init(struct snd_soc_pcm_runtime *rtd)
  72{
  73        struct snd_soc_component *component = rtd->codec_dai->component;
  74
  75        snd_soc_dapm_nc_pin(&rtd->card->dapm, "LINEOUT");
  76
  77        /* At any time the WM9081 is active it will have this clock */
  78        return snd_soc_component_set_sysclk(component, WM9081_SYSCLK_MCLK, 0,
  79                                        CLKOUT_RATE, 0);
  80}
  81
  82static 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
  90static 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
 126static struct snd_soc_codec_conf lowland_codec_conf[] = {
 127        {
 128                .dev_name = "wm9081.1-006c",
 129                .name_prefix = "Sub",
 130        },
 131};
 132
 133static 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
 142static 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
 152static 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
 161static 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
 177static 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
 192static struct platform_driver lowland_driver = {
 193        .driver = {
 194                .name = "lowland",
 195                .pm = &snd_soc_pm_ops,
 196        },
 197        .probe = lowland_probe,
 198};
 199
 200module_platform_driver(lowland_driver);
 201
 202MODULE_DESCRIPTION("Lowland audio support");
 203MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
 204MODULE_LICENSE("GPL");
 205MODULE_ALIAS("platform:lowland");
 206