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         struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(rtd->card);
 105
 106         snd_soc_card_jack_new(rtd->card, "Headset Jack", SND_JACK_HEADSET,
 107                               &tegra_alc5632_hs_jack,
 108                               tegra_alc5632_hs_jack_pins,
 109                               ARRAY_SIZE(tegra_alc5632_hs_jack_pins));
 110
 111         if (gpio_is_valid(machine->gpio_hp_det)) {
 112                 tegra_alc5632_hp_jack_gpio.gpio = machine->gpio_hp_det;
 113                 snd_soc_jack_add_gpios(&tegra_alc5632_hs_jack,
 114                                                 1,
 115                                                 &tegra_alc5632_hp_jack_gpio);
 116         }
 117
 118         snd_soc_dapm_force_enable_pin(&rtd->card->dapm, "MICBIAS1");
 119
 120         return 0;
 121 }
 122
 123 static int tegra_alc5632_card_remove(struct snd_soc_card *card)
 124 {
 125         struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
 126
 127         if (gpio_is_valid(machine->gpio_hp_det)) {
 128                 snd_soc_jack_free_gpios(&tegra_alc5632_hs_jack, 1,
 129                                         &tegra_alc5632_hp_jack_gpio);
 130         }
 131
 132         return 0;
 133 }
 134
 135 static struct snd_soc_dai_link tegra_alc5632_dai = {
 136         .name = "ALC5632",
 137         .stream_name = "ALC5632 PCM",
 138         .codec_dai_name = "alc5632-hifi",
 139         .init = tegra_alc5632_asoc_init,
 140         .ops = &tegra_alc5632_asoc_ops,
 141         .dai_fmt = SND_SOC_DAIFMT_I2S
 142                            | SND_SOC_DAIFMT_NB_NF
 143                            | SND_SOC_DAIFMT_CBS_CFS,
 144 };
 145
 146 static struct snd_soc_card snd_soc_tegra_alc5632 = {
 147         .name = "tegra-alc5632",
 148         .owner = THIS_MODULE,
 149         .remove = tegra_alc5632_card_remove,
 150         .dai_link = &tegra_alc5632_dai,
 151         .num_links = 1,
 152         .controls = tegra_alc5632_controls,
 153         .num_controls = ARRAY_SIZE(tegra_alc5632_controls),
 154         .dapm_widgets = tegra_alc5632_dapm_widgets,
 155         .num_dapm_widgets = ARRAY_SIZE(tegra_alc5632_dapm_widgets),
 156         .fully_routed = true,
 157 };
 158
 159 static int tegra_alc5632_probe(struct platform_device *pdev)
 160 {
 161         struct device_node *np = pdev->dev.of_node;
 162         struct snd_soc_card *card = &snd_soc_tegra_alc5632;
 163         struct tegra_alc5632 *alc5632;
 164         int ret;
 165
 166         alc5632 = devm_kzalloc(&pdev->dev,
 167                         sizeof(struct tegra_alc5632), GFP_KERNEL);
 168         if (!alc5632) {
 169                 dev_err(&pdev->dev, "Can't allocate tegra_alc5632\n");
 170                 return -ENOMEM;
 171         }
 172
 173         card->dev = &pdev->dev;
 174         platform_set_drvdata(pdev, card);
 175         snd_soc_card_set_drvdata(card, alc5632);
 176
 177         alc5632->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
 178         if (alc5632->gpio_hp_det == -EPROBE_DEFER)
 179                 return -EPROBE_DEFER;
 180
 181         ret = snd_soc_of_parse_card_name(card, "nvidia,model");
 182         if (ret)
 183                 goto err;
 184
 185         ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
 186         if (ret)
 187                 goto err;
 188
 189         tegra_alc5632_dai.codec_of_node = of_parse_phandle(
 190                         pdev->dev.of_node, "nvidia,audio-codec", 0);
 191
 192         if (!tegra_alc5632_dai.codec_of_node) {
 193                 dev_err(&pdev->dev,
 194                         "Property 'nvidia,audio-codec' missing or invalid\n");
 195                 ret = -EINVAL;
 196                 goto err;
 197         }
 198
 199         tegra_alc5632_dai.cpu_of_node = of_parse_phandle(np,
 200                         "nvidia,i2s-controller", 0);
 201         if (!tegra_alc5632_dai.cpu_of_node) {
 202                 dev_err(&pdev->dev,
 203                         "Property 'nvidia,i2s-controller' missing or invalid\n");
 204                 ret = -EINVAL;
 205                 goto err;
 206         }
 207
 208         tegra_alc5632_dai.platform_of_node = tegra_alc5632_dai.cpu_of_node;
 209
 210         ret = tegra_asoc_utils_init(&alc5632->util_data, &pdev->dev);
 211         if (ret)
 212                 goto err;
 213
 214         ret = snd_soc_register_card(card);
 215         if (ret) {
 216                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
 217                         ret);
 218                 goto err_fini_utils;
 219         }
 220
 221         return 0;
 222
 223 err_fini_utils:
 224         tegra_asoc_utils_fini(&alc5632->util_data);
 225 err:
 226         return ret;
 227 }
 228
 229 static int tegra_alc5632_remove(struct platform_device *pdev)
 230 {
 231         struct snd_soc_card *card = platform_get_drvdata(pdev);
 232         struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
 233
 234         snd_soc_unregister_card(card);
 235
 236         tegra_asoc_utils_fini(&machine->util_data);
 237
 238         return 0;
 239 }
 240
 241 static const struct of_device_id tegra_alc5632_of_match[] = {
 242         { .compatible = "nvidia,tegra-audio-alc5632", },
 243         {},
 244 };
 245
 246 static struct platform_driver tegra_alc5632_driver = {
 247         .driver = {
 248                 .name = DRV_NAME,
 249                 .pm = &snd_soc_pm_ops,
 250                 .of_match_table = tegra_alc5632_of_match,
 251         },
 252         .probe = tegra_alc5632_probe,
 253         .remove = tegra_alc5632_remove,
 254 };
 255 module_platform_driver(tegra_alc5632_driver);
 256
 257 MODULE_AUTHOR("Leon Romanovsky <leon@leon.nu>");
 258 MODULE_DESCRIPTION("Tegra+ALC5632 machine ASoC driver");
 259 MODULE_LICENSE("GPL");
 260 MODULE_ALIAS("platform:" DRV_NAME);
 261 MODULE_DEVICE_TABLE(of, tegra_alc5632_of_match);