sound/soc/pxa/palm27x.c

   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_pins(rtd->card, "Headphone Jack",
  75                                          SND_JACK_HEADPHONE, &hs_jack,
  76                                          hs_jack_pins,
  77                                          ARRAY_SIZE(hs_jack_pins));
  78         if (err)
  79                 return err;
  80
  81         err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
  82                                 hs_jack_gpios);
  83
  84         return err;
  85 }
  86
  87 SND_SOC_DAILINK_DEFS(hifi,
  88         DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
  89         DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
  90         DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
  91
  92 SND_SOC_DAILINK_DEFS(aux,
  93         DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
  94         DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
  95         DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
  96
  97 static struct snd_soc_dai_link palm27x_dai[] = {
  98 {
  99         .name = "AC97 HiFi",
 100         .stream_name = "AC97 HiFi",
 101         .init = palm27x_ac97_init,
 102         SND_SOC_DAILINK_REG(hifi),
 103 },
 104 {
 105         .name = "AC97 Aux",
 106         .stream_name = "AC97 Aux",
 107         SND_SOC_DAILINK_REG(aux),
 108 },
 109 };
 110
 111 static struct snd_soc_card palm27x_asoc = {
 112         .name = "Palm/PXA27x",
 113         .owner = THIS_MODULE,
 114         .dai_link = palm27x_dai,
 115         .num_links = ARRAY_SIZE(palm27x_dai),
 116         .dapm_widgets = palm27x_dapm_widgets,
 117         .num_dapm_widgets = ARRAY_SIZE(palm27x_dapm_widgets),
 118         .dapm_routes = audio_map,
 119         .num_dapm_routes = ARRAY_SIZE(audio_map),
 120         .fully_routed = true,
 121 };
 122
 123 static int palm27x_asoc_probe(struct platform_device *pdev)
 124 {
 125         int ret;
 126
 127         if (!(machine_is_palmtx() || machine_is_palmt5() ||
 128                 machine_is_palmld() || machine_is_palmte2()))
 129                 return -ENODEV;
 130
 131         if (!pdev->dev.platform_data) {
 132                 dev_err(&pdev->dev, "please supply platform_data\n");
 133                 return -ENODEV;
 134         }
 135
 136         hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
 137                         (pdev->dev.platform_data))->jack_gpio;
 138
 139         palm27x_asoc.dev = &pdev->dev;
 140
 141         ret = devm_snd_soc_register_card(&pdev->dev, &palm27x_asoc);
 142         if (ret)
 143                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 144                         ret);
 145         return ret;
 146 }
 147
 148 static struct platform_driver palm27x_wm9712_driver = {
 149         .probe          = palm27x_asoc_probe,
 150         .driver         = {
 151                 .name           = "palm27x-asoc",
 152                 .pm     = &snd_soc_pm_ops,
 153         },
 154 };
 155
 156 module_platform_driver(palm27x_wm9712_driver);
 157
 158 /* Module information */
 159 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 160 MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
 161 MODULE_LICENSE("GPL");
 162 MODULE_ALIAS("platform:palm27x-asoc");