root/sound/soc/pxa/palm27x.c

DEFINITIONS

1. palm27x_ac97_init
2. palm27x_asoc_probe

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * linux/sound/soc/pxa/palm27x.c
   4  *
   5  * SoC Audio driver for Palm T|X, T5 and LifeDrive
   6  *
   7  * based on tosa.c
   8  *
   9  * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
  10  */
  11 
  12 #include <linux/module.h>
  13 #include <linux/moduleparam.h>
  14 #include <linux/device.h>
  15 #include <linux/gpio.h>
  16 
  17 #include <sound/core.h>
  18 #include <sound/pcm.h>
  19 #include <sound/soc.h>
  20 #include <sound/jack.h>
  21 
  22 #include <asm/mach-types.h>
  23 #include <mach/audio.h>
  24 #include <linux/platform_data/asoc-palm27x.h>
  25 
  26 static struct snd_soc_jack hs_jack;
  27 
  28 /* Headphones jack detection DAPM pins */
  29 static struct snd_soc_jack_pin hs_jack_pins[] = {
  30         {
  31                 .pin    = "Headphone Jack",
  32                 .mask   = SND_JACK_HEADPHONE,
  33         },
  34 };
  35 
  36 /* Headphones jack detection gpios */
  37 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
  38         [0] = {
  39                 /* gpio is set on per-platform basis */
  40                 .name           = "hp-gpio",
  41                 .report         = SND_JACK_HEADPHONE,
  42                 .debounce_time  = 200,
  43         },
  44 };
  45 
  46 /* Palm27x machine dapm widgets */
  47 static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
  48         SND_SOC_DAPM_HP("Headphone Jack", NULL),
  49         SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
  50         SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
  51 };
  52 
  53 /* PalmTX audio map */
  54 static const struct snd_soc_dapm_route audio_map[] = {
  55         /* headphone connected to HPOUTL, HPOUTR */
  56         {"Headphone Jack", NULL, "HPOUTL"},
  57         {"Headphone Jack", NULL, "HPOUTR"},
  58 
  59         /* ext speaker connected to ROUT2, LOUT2 */
  60         {"Ext. Speaker", NULL, "LOUT2"},
  61         {"Ext. Speaker", NULL, "ROUT2"},
  62 
  63         /* mic connected to MIC1 */
  64         {"MIC1", NULL, "Ext. Microphone"},
  65 };
  66 
  67 static struct snd_soc_card palm27x_asoc;
  68 
  69 static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
  70 {
  71         int err;
  72 
  73         /* Jack detection API stuff */
  74         err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
  75                                     SND_JACK_HEADPHONE, &hs_jack, hs_jack_pins,
  76                                     ARRAY_SIZE(hs_jack_pins));
  77         if (err)
  78                 return err;
  79 
  80         err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
  81                                 hs_jack_gpios);
  82 
  83         return err;
  84 }
  85 
  86 SND_SOC_DAILINK_DEFS(hifi,
  87         DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
  88         DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
  89         DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
  90 
  91 SND_SOC_DAILINK_DEFS(aux,
  92         DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
  93         DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
  94         DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
  95 
  96 static struct snd_soc_dai_link palm27x_dai[] = {
  97 {
  98         .name = "AC97 HiFi",
  99         .stream_name = "AC97 HiFi",
 100         .init = palm27x_ac97_init,
 101         SND_SOC_DAILINK_REG(hifi),
 102 },
 103 {
 104         .name = "AC97 Aux",
 105         .stream_name = "AC97 Aux",
 106         SND_SOC_DAILINK_REG(aux),
 107 },
 108 };
 109 
 110 static struct snd_soc_card palm27x_asoc = {
 111         .name = "Palm/PXA27x",
 112         .owner = THIS_MODULE,
 113         .dai_link = palm27x_dai,
 114         .num_links = ARRAY_SIZE(palm27x_dai),
 115         .dapm_widgets = palm27x_dapm_widgets,
 116         .num_dapm_widgets = ARRAY_SIZE(palm27x_dapm_widgets),
 117         .dapm_routes = audio_map,
 118         .num_dapm_routes = ARRAY_SIZE(audio_map),
 119         .fully_routed = true,
 120 };
 121 
 122 static int palm27x_asoc_probe(struct platform_device *pdev)
 123 {
 124         int ret;
 125 
 126         if (!(machine_is_palmtx() || machine_is_palmt5() ||
 127                 machine_is_palmld() || machine_is_palmte2()))
 128                 return -ENODEV;
 129 
 130         if (!pdev->dev.platform_data) {
 131                 dev_err(&pdev->dev, "please supply platform_data\n");
 132                 return -ENODEV;
 133         }
 134 
 135         hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
 136                         (pdev->dev.platform_data))->jack_gpio;
 137 
 138         palm27x_asoc.dev = &pdev->dev;
 139 
 140         ret = devm_snd_soc_register_card(&pdev->dev, &palm27x_asoc);
 141         if (ret)
 142                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 143                         ret);
 144         return ret;
 145 }
 146 
 147 static struct platform_driver palm27x_wm9712_driver = {
 148         .probe          = palm27x_asoc_probe,
 149         .driver         = {
 150                 .name           = "palm27x-asoc",
 151                 .pm     = &snd_soc_pm_ops,
 152         },
 153 };
 154 
 155 module_platform_driver(palm27x_wm9712_driver);
 156 
 157 /* Module information */
 158 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 159 MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
 160 MODULE_LICENSE("GPL");
 161 MODULE_ALIAS("platform:palm27x-asoc");