sound/soc/tegra/tegra_alc5632.c

   1 /*
   2 * tegra_alc5632.c  --  Toshiba AC100(PAZ00) machine ASoC driver
   3  *
   4  * Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
   5  * Copyright (C) 2012 - NVIDIA, Inc.
   6  *
   7  * Authors:  Leon Romanovsky <leon@leon.nu>
   8  *           Andrey Danin <danindrey@mail.ru>
   9  *           Marc Dietrich <marvin24@gmx.de>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  */
  15
  16 #include <linux/module.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/slab.h>
  19 #include <linux/gpio.h>
  20 #include <linux/of_gpio.h>
  21
  22 #include <sound/core.h>
  23 #include <sound/jack.h>
  24 #include <sound/pcm.h>
  25 #include <sound/pcm_params.h>
  26 #include <sound/soc.h>
  27
  28 #include "../codecs/alc5632.h"
  29
  30 #include "tegra_asoc_utils.h"
  31
  32 #define DRV_NAME "tegra-alc5632"
  33
  34 struct tegra_alc5632 {
  35         struct tegra_asoc_utils_data util_data;
  36         int gpio_hp_det;
  37 };
  38
  39 static int tegra_alc5632_asoc_hw_params(struct snd_pcm_substream *substream,
  40                                         struct snd_pcm_hw_params *params)
  41 {
  42         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  43         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  44         struct snd_soc_codec *codec = codec_dai->codec;
  45         struct snd_soc_card *card = codec->card;
  46         struct tegra_alc5632 *alc5632 = snd_soc_card_get_drvdata(card);
  47         int srate, mclk;
  48         int err;
  49
  50         srate = params_rate(params);
  51         mclk = 512 * srate;
  52
  53         err = tegra_asoc_utils_set_rate(&alc5632->util_data, srate, mclk);
  54         if (err < 0) {
  55                 dev_err(card->dev, "Can't configure clocks\n");
  56                 return err;
  57         }
  58
  59         err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
  60                                         SND_SOC_CLOCK_IN);
  61         if (err < 0) {
  62                 dev_err(card->dev, "codec_dai clock not set\n");
  63                 return err;
  64         }
  65
  66         return 0;
  67 }
  68
  69 static struct snd_soc_ops tegra_alc5632_asoc_ops = {
  70         .hw_params = tegra_alc5632_asoc_hw_params,
  71 };
  72
  73 static struct snd_soc_jack tegra_alc5632_hs_jack;
  74
  75 static struct snd_soc_jack_pin tegra_alc5632_hs_jack_pins[] = {
  76         {
  77                 .pin = "Headset Mic",
  78                 .mask = SND_JACK_MICROPHONE,
  79         },
  80         {
  81                 .pin = "Headset Stereophone",
  82                 .mask = SND_JACK_HEADPHONE,
  83         },
  84 };
  85
  86 static struct snd_soc_jack_gpio tegra_alc5632_hp_jack_gpio = {
  87         .name = "Headset detection",
  88         .report = SND_JACK_HEADSET,
  89         .debounce_time = 150,
  90 };
  91
  92 static const struct snd_soc_dapm_widget tegra_alc5632_dapm_widgets[] = {
  93         SND_SOC_DAPM_SPK("Int Spk", NULL),
  94         SND_SOC_DAPM_HP("Headset Stereophone", NULL),
  95         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  96         SND_SOC_DAPM_MIC("Digital Mic", NULL),
  97 };
  98
  99 static const struct snd_kcontrol_new tegra_alc5632_controls[] = {
 100         SOC_DAPM_PIN_SWITCH("Int Spk"),
 101 };
 102
 103 static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd)
 104 {
 105         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 106         struct snd_soc_codec *codec = codec_dai->codec;
 107         struct snd_soc_dapm_context *dapm = &codec->dapm;
 108         struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(codec->card);
 109
 110         snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET,
 111                          &tegra_alc5632_hs_jack);
 112         snd_soc_jack_add_pins(&tegra_alc5632_hs_jack,
 113                         ARRAY_SIZE(tegra_alc5632_hs_jack_pins),
 114                         tegra_alc5632_hs_jack_pins);
 115
 116         if (gpio_is_valid(machine->gpio_hp_det)) {
 117                 tegra_alc5632_hp_jack_gpio.gpio = machine->gpio_hp_det;
 118                 snd_soc_jack_add_gpios(&tegra_alc5632_hs_jack,
 119                                                 1,
 120                                                 &tegra_alc5632_hp_jack_gpio);
 121         }
 122
 123         snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
 124
 125         return 0;
 126 }
 127
 128 static struct snd_soc_dai_link tegra_alc5632_dai = {
 129         .name = "ALC5632",
 130         .stream_name = "ALC5632 PCM",
 131         .codec_dai_name = "alc5632-hifi",
 132         .init = tegra_alc5632_asoc_init,
 133         .ops = &tegra_alc5632_asoc_ops,
 134         .dai_fmt = SND_SOC_DAIFMT_I2S
 135                            | SND_SOC_DAIFMT_NB_NF
 136                            | SND_SOC_DAIFMT_CBS_CFS,
 137 };
 138
 139 static struct snd_soc_card snd_soc_tegra_alc5632 = {
 140         .name = "tegra-alc5632",
 141         .owner = THIS_MODULE,
 142         .dai_link = &tegra_alc5632_dai,
 143         .num_links = 1,
 144         .controls = tegra_alc5632_controls,
 145         .num_controls = ARRAY_SIZE(tegra_alc5632_controls),
 146         .dapm_widgets = tegra_alc5632_dapm_widgets,
 147         .num_dapm_widgets = ARRAY_SIZE(tegra_alc5632_dapm_widgets),
 148         .fully_routed = true,
 149 };
 150
 151 static int tegra_alc5632_probe(struct platform_device *pdev)
 152 {
 153         struct device_node *np = pdev->dev.of_node;
 154         struct snd_soc_card *card = &snd_soc_tegra_alc5632;
 155         struct tegra_alc5632 *alc5632;
 156         int ret;
 157
 158         alc5632 = devm_kzalloc(&pdev->dev,
 159                         sizeof(struct tegra_alc5632), GFP_KERNEL);
 160         if (!alc5632) {
 161                 dev_err(&pdev->dev, "Can't allocate tegra_alc5632\n");
 162                 return -ENOMEM;
 163         }
 164
 165         card->dev = &pdev->dev;
 166         platform_set_drvdata(pdev, card);
 167         snd_soc_card_set_drvdata(card, alc5632);
 168
 169         alc5632->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
 170         if (alc5632->gpio_hp_det == -EPROBE_DEFER)
 171                 return -EPROBE_DEFER;
 172
 173         ret = snd_soc_of_parse_card_name(card, "nvidia,model");
 174         if (ret)
 175                 goto err;
 176
 177         ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
 178         if (ret)
 179                 goto err;
 180
 181         tegra_alc5632_dai.codec_of_node = of_parse_phandle(
 182                         pdev->dev.of_node, "nvidia,audio-codec", 0);
 183
 184         if (!tegra_alc5632_dai.codec_of_node) {
 185                 dev_err(&pdev->dev,
 186                         "Property 'nvidia,audio-codec' missing or invalid\n");
 187                 ret = -EINVAL;
 188                 goto err;
 189         }
 190
 191         tegra_alc5632_dai.cpu_of_node = of_parse_phandle(np,
 192                         "nvidia,i2s-controller", 0);
 193         if (!tegra_alc5632_dai.cpu_of_node) {
 194                 dev_err(&pdev->dev,
 195                         "Property 'nvidia,i2s-controller' missing or invalid\n");
 196                 ret = -EINVAL;
 197                 goto err;
 198         }
 199
 200         tegra_alc5632_dai.platform_of_node = tegra_alc5632_dai.cpu_of_node;
 201
 202         ret = tegra_asoc_utils_init(&alc5632->util_data, &pdev->dev);
 203         if (ret)
 204                 goto err;
 205
 206         ret = snd_soc_register_card(card);
 207         if (ret) {
 208                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
 209                         ret);
 210                 goto err_fini_utils;
 211         }
 212
 213         return 0;
 214
 215 err_fini_utils:
 216         tegra_asoc_utils_fini(&alc5632->util_data);
 217 err:
 218         return ret;
 219 }
 220
 221 static int tegra_alc5632_remove(struct platform_device *pdev)
 222 {
 223         struct snd_soc_card *card = platform_get_drvdata(pdev);
 224         struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
 225
 226         snd_soc_jack_free_gpios(&tegra_alc5632_hs_jack, 1,
 227                                 &tegra_alc5632_hp_jack_gpio);
 228
 229         snd_soc_unregister_card(card);
 230
 231         tegra_asoc_utils_fini(&machine->util_data);
 232
 233         return 0;
 234 }
 235
 236 static const struct of_device_id tegra_alc5632_of_match[] = {
 237         { .compatible = "nvidia,tegra-audio-alc5632", },
 238         {},
 239 };
 240
 241 static struct platform_driver tegra_alc5632_driver = {
 242         .driver = {
 243                 .name = DRV_NAME,
 244                 .owner = THIS_MODULE,
 245                 .pm = &snd_soc_pm_ops,
 246                 .of_match_table = tegra_alc5632_of_match,
 247         },
 248         .probe = tegra_alc5632_probe,
 249         .remove = tegra_alc5632_remove,
 250 };
 251 module_platform_driver(tegra_alc5632_driver);
 252
 253 MODULE_AUTHOR("Leon Romanovsky <leon@leon.nu>");
 254 MODULE_DESCRIPTION("Tegra+ALC5632 machine ASoC driver");
 255 MODULE_LICENSE("GPL");
 256 MODULE_ALIAS("platform:" DRV_NAME);
 257 MODULE_DEVICE_TABLE(of, tegra_alc5632_of_match);