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_card *card = rtd->card;
  45         struct tegra_alc5632 *alc5632 = snd_soc_card_get_drvdata(card);
  46         int srate, mclk;
  47         int err;
  48
  49         srate = params_rate(params);
  50         mclk = 512 * srate;
  51
  52         err = tegra_asoc_utils_set_rate(&alc5632->util_data, srate, mclk);
  53         if (err < 0) {
  54                 dev_err(card->dev, "Can't configure clocks\n");
  55                 return err;
  56         }
  57
  58         err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
  59                                         SND_SOC_CLOCK_IN);
  60         if (err < 0) {
  61                 dev_err(card->dev, "codec_dai clock not set\n");
  62                 return err;
  63         }
  64
  65         return 0;
  66 }
  67
  68 static struct snd_soc_ops tegra_alc5632_asoc_ops = {
  69         .hw_params = tegra_alc5632_asoc_hw_params,
  70 };
  71
  72 static struct snd_soc_jack tegra_alc5632_hs_jack;
  73
  74 static struct snd_soc_jack_pin tegra_alc5632_hs_jack_pins[] = {
  75         {
  76                 .pin = "Headset Mic",
  77                 .mask = SND_JACK_MICROPHONE,
  78         },
  79         {
  80                 .pin = "Headset Stereophone",
  81                 .mask = SND_JACK_HEADPHONE,
  82         },
  83 };
  84
  85 static struct snd_soc_jack_gpio tegra_alc5632_hp_jack_gpio = {
  86         .name = "Headset detection",
  87         .report = SND_JACK_HEADSET,
  88         .debounce_time = 150,
  89 };
  90
  91 static const struct snd_soc_dapm_widget tegra_alc5632_dapm_widgets[] = {
  92         SND_SOC_DAPM_SPK("Int Spk", NULL),
  93         SND_SOC_DAPM_HP("Headset Stereophone", NULL),
  94         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  95         SND_SOC_DAPM_MIC("Digital Mic", NULL),
  96 };
  97
  98 static const struct snd_kcontrol_new tegra_alc5632_controls[] = {
  99         SOC_DAPM_PIN_SWITCH("Int Spk"),
 100 };
 101
 102 static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd)
 103 {
 104         int ret;
 105         struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(rtd->card);
 106
 107         ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
 108                                     SND_JACK_HEADSET,
 109                                     &tegra_alc5632_hs_jack,
 110                                     tegra_alc5632_hs_jack_pins,
 111                                     ARRAY_SIZE(tegra_alc5632_hs_jack_pins));
 112         if (ret)
 113                 return ret;
 114
 115         if (gpio_is_valid(machine->gpio_hp_det)) {
 116                 tegra_alc5632_hp_jack_gpio.gpio = machine->gpio_hp_det;
 117                 snd_soc_jack_add_gpios(&tegra_alc5632_hs_jack,
 118                                                 1,
 119                                                 &tegra_alc5632_hp_jack_gpio);
 120         }
 121
 122         snd_soc_dapm_force_enable_pin(&rtd->card->dapm, "MICBIAS1");
 123
 124         return 0;
 125 }
 126
 127 static int tegra_alc5632_card_remove(struct snd_soc_card *card)
 128 {
 129         struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
 130
 131         if (gpio_is_valid(machine->gpio_hp_det)) {
 132                 snd_soc_jack_free_gpios(&tegra_alc5632_hs_jack, 1,
 133                                         &tegra_alc5632_hp_jack_gpio);
 134         }
 135
 136         return 0;
 137 }
 138
 139 static struct snd_soc_dai_link tegra_alc5632_dai = {
 140         .name = "ALC5632",
 141         .stream_name = "ALC5632 PCM",
 142         .codec_dai_name = "alc5632-hifi",
 143         .init = tegra_alc5632_asoc_init,
 144         .ops = &tegra_alc5632_asoc_ops,
 145         .dai_fmt = SND_SOC_DAIFMT_I2S
 146                            | SND_SOC_DAIFMT_NB_NF
 147                            | SND_SOC_DAIFMT_CBS_CFS,
 148 };
 149
 150 static struct snd_soc_card snd_soc_tegra_alc5632 = {
 151         .name = "tegra-alc5632",
 152         .owner = THIS_MODULE,
 153         .remove = tegra_alc5632_card_remove,
 154         .dai_link = &tegra_alc5632_dai,
 155         .num_links = 1,
 156         .controls = tegra_alc5632_controls,
 157         .num_controls = ARRAY_SIZE(tegra_alc5632_controls),
 158         .dapm_widgets = tegra_alc5632_dapm_widgets,
 159         .num_dapm_widgets = ARRAY_SIZE(tegra_alc5632_dapm_widgets),
 160         .fully_routed = true,
 161 };
 162
 163 static int tegra_alc5632_probe(struct platform_device *pdev)
 164 {
 165         struct device_node *np = pdev->dev.of_node;
 166         struct snd_soc_card *card = &snd_soc_tegra_alc5632;
 167         struct tegra_alc5632 *alc5632;
 168         int ret;
 169
 170         alc5632 = devm_kzalloc(&pdev->dev,
 171                         sizeof(struct tegra_alc5632), GFP_KERNEL);
 172         if (!alc5632) {
 173                 dev_err(&pdev->dev, "Can't allocate tegra_alc5632\n");
 174                 return -ENOMEM;
 175         }
 176
 177         card->dev = &pdev->dev;
 178         platform_set_drvdata(pdev, card);
 179         snd_soc_card_set_drvdata(card, alc5632);
 180
 181         alc5632->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
 182         if (alc5632->gpio_hp_det == -EPROBE_DEFER)
 183                 return -EPROBE_DEFER;
 184
 185         ret = snd_soc_of_parse_card_name(card, "nvidia,model");
 186         if (ret)
 187                 goto err;
 188
 189         ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
 190         if (ret)
 191                 goto err;
 192
 193         tegra_alc5632_dai.codec_of_node = of_parse_phandle(
 194                         pdev->dev.of_node, "nvidia,audio-codec", 0);
 195
 196         if (!tegra_alc5632_dai.codec_of_node) {
 197                 dev_err(&pdev->dev,
 198                         "Property 'nvidia,audio-codec' missing or invalid\n");
 199                 ret = -EINVAL;
 200                 goto err;
 201         }
 202
 203         tegra_alc5632_dai.cpu_of_node = of_parse_phandle(np,
 204                         "nvidia,i2s-controller", 0);
 205         if (!tegra_alc5632_dai.cpu_of_node) {
 206                 dev_err(&pdev->dev,
 207                         "Property 'nvidia,i2s-controller' missing or invalid\n");
 208                 ret = -EINVAL;
 209                 goto err;
 210         }
 211
 212         tegra_alc5632_dai.platform_of_node = tegra_alc5632_dai.cpu_of_node;
 213
 214         ret = tegra_asoc_utils_init(&alc5632->util_data, &pdev->dev);
 215         if (ret)
 216                 goto err;
 217
 218         ret = snd_soc_register_card(card);
 219         if (ret) {
 220                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
 221                         ret);
 222                 goto err_fini_utils;
 223         }
 224
 225         return 0;
 226
 227 err_fini_utils:
 228         tegra_asoc_utils_fini(&alc5632->util_data);
 229 err:
 230         return ret;
 231 }
 232
 233 static int tegra_alc5632_remove(struct platform_device *pdev)
 234 {
 235         struct snd_soc_card *card = platform_get_drvdata(pdev);
 236         struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
 237
 238         snd_soc_unregister_card(card);
 239
 240         tegra_asoc_utils_fini(&machine->util_data);
 241
 242         return 0;
 243 }
 244
 245 static const struct of_device_id tegra_alc5632_of_match[] = {
 246         { .compatible = "nvidia,tegra-audio-alc5632", },
 247         {},
 248 };
 249
 250 static struct platform_driver tegra_alc5632_driver = {
 251         .driver = {
 252                 .name = DRV_NAME,
 253                 .pm = &snd_soc_pm_ops,
 254                 .of_match_table = tegra_alc5632_of_match,
 255         },
 256         .probe = tegra_alc5632_probe,
 257         .remove = tegra_alc5632_remove,
 258 };
 259 module_platform_driver(tegra_alc5632_driver);
 260
 261 MODULE_AUTHOR("Leon Romanovsky <leon@leon.nu>");
 262 MODULE_DESCRIPTION("Tegra+ALC5632 machine ASoC driver");
 263 MODULE_LICENSE("GPL");
 264 MODULE_ALIAS("platform:" DRV_NAME);
 265 MODULE_DEVICE_TABLE(of, tegra_alc5632_of_match);