sound/soc/pxa/e800_wm9712.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * e800-wm9712.c  --  SoC audio for e800
   4  *
   5  * Copyright 2007 (c) Ian Molton <spyro@f2s.com>
   6  */
   7
   8 #include <linux/module.h>
   9 #include <linux/moduleparam.h>
  10 #include <linux/gpio.h>
  11
  12 #include <sound/core.h>
  13 #include <sound/pcm.h>
  14 #include <sound/soc.h>
  15
  16 #include <asm/mach-types.h>
  17 #include <mach/audio.h>
  18 #include <mach/eseries-gpio.h>
  19
  20 static int e800_spk_amp_event(struct snd_soc_dapm_widget *w,
  21                                 struct snd_kcontrol *kcontrol, int event)
  22 {
  23         if (event & SND_SOC_DAPM_PRE_PMU)
  24                 gpio_set_value(GPIO_E800_SPK_AMP_ON, 1);
  25         else if (event & SND_SOC_DAPM_POST_PMD)
  26                 gpio_set_value(GPIO_E800_SPK_AMP_ON, 0);
  27
  28         return 0;
  29 }
  30
  31 static int e800_hp_amp_event(struct snd_soc_dapm_widget *w,
  32                                 struct snd_kcontrol *kcontrol, int event)
  33 {
  34         if (event & SND_SOC_DAPM_PRE_PMU)
  35                 gpio_set_value(GPIO_E800_HP_AMP_OFF, 0);
  36         else if (event & SND_SOC_DAPM_POST_PMD)
  37                 gpio_set_value(GPIO_E800_HP_AMP_OFF, 1);
  38
  39         return 0;
  40 }
  41
  42 static const struct snd_soc_dapm_widget e800_dapm_widgets[] = {
  43         SND_SOC_DAPM_HP("Headphone Jack", NULL),
  44         SND_SOC_DAPM_MIC("Mic (Internal1)", NULL),
  45         SND_SOC_DAPM_MIC("Mic (Internal2)", NULL),
  46         SND_SOC_DAPM_SPK("Speaker", NULL),
  47         SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
  48                         e800_hp_amp_event, SND_SOC_DAPM_PRE_PMU |
  49                         SND_SOC_DAPM_POST_PMD),
  50         SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
  51                         e800_spk_amp_event, SND_SOC_DAPM_PRE_PMU |
  52                         SND_SOC_DAPM_POST_PMD),
  53 };
  54
  55 static const struct snd_soc_dapm_route audio_map[] = {
  56         {"Headphone Jack", NULL, "HPOUTL"},
  57         {"Headphone Jack", NULL, "HPOUTR"},
  58         {"Headphone Jack", NULL, "Headphone Amp"},
  59
  60         {"Speaker Amp", NULL, "MONOOUT"},
  61         {"Speaker", NULL, "Speaker Amp"},
  62
  63         {"MIC1", NULL, "Mic (Internal1)"},
  64         {"MIC2", NULL, "Mic (Internal2)"},
  65 };
  66
  67
  68 SND_SOC_DAILINK_DEFS(ac97,
  69         DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
  70         DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
  71         DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
  72
  73 SND_SOC_DAILINK_DEFS(ac97_aux,
  74         DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
  75         DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
  76         DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
  77
  78 static struct snd_soc_dai_link e800_dai[] = {
  79         {
  80                 .name = "AC97",
  81                 .stream_name = "AC97 HiFi",
  82                 SND_SOC_DAILINK_REG(ac97),
  83         },
  84         {
  85                 .name = "AC97 Aux",
  86                 .stream_name = "AC97 Aux",
  87                 SND_SOC_DAILINK_REG(ac97_aux),
  88         },
  89 };
  90
  91 static struct snd_soc_card e800 = {
  92         .name = "Toshiba e800",
  93         .owner = THIS_MODULE,
  94         .dai_link = e800_dai,
  95         .num_links = ARRAY_SIZE(e800_dai),
  96
  97         .dapm_widgets = e800_dapm_widgets,
  98         .num_dapm_widgets = ARRAY_SIZE(e800_dapm_widgets),
  99         .dapm_routes = audio_map,
 100         .num_dapm_routes = ARRAY_SIZE(audio_map),
 101 };
 102
 103 static struct gpio e800_audio_gpios[] = {
 104         { GPIO_E800_SPK_AMP_ON, GPIOF_OUT_INIT_HIGH, "Headphone amp" },
 105         { GPIO_E800_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" },
 106 };
 107
 108 static int e800_probe(struct platform_device *pdev)
 109 {
 110         struct snd_soc_card *card = &e800;
 111         int ret;
 112
 113         ret = gpio_request_array(e800_audio_gpios,
 114                                  ARRAY_SIZE(e800_audio_gpios));
 115         if (ret)
 116                 return ret;
 117
 118         card->dev = &pdev->dev;
 119
 120         ret = devm_snd_soc_register_card(&pdev->dev, card);
 121         if (ret) {
 122                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 123                         ret);
 124                 gpio_free_array(e800_audio_gpios, ARRAY_SIZE(e800_audio_gpios));
 125         }
 126         return ret;
 127 }
 128
 129 static int e800_remove(struct platform_device *pdev)
 130 {
 131         gpio_free_array(e800_audio_gpios, ARRAY_SIZE(e800_audio_gpios));
 132         return 0;
 133 }
 134
 135 static struct platform_driver e800_driver = {
 136         .driver         = {
 137                 .name   = "e800-audio",
 138                 .pm     = &snd_soc_pm_ops,
 139         },
 140         .probe          = e800_probe,
 141         .remove         = e800_remove,
 142 };
 143
 144 module_platform_driver(e800_driver);
 145
 146 /* Module information */
 147 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
 148 MODULE_DESCRIPTION("ALSA SoC driver for e800");
 149 MODULE_LICENSE("GPL v2");
 150 MODULE_ALIAS("platform:e800-audio");