sound/soc/pxa/palm27x.c

   1 /*
   2  * linux/sound/soc/pxa/palm27x.c
   3  *
   4  * SoC Audio driver for Palm T|X, T5 and LifeDrive
   5  *
   6  * based on tosa.c
   7  *
   8  * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  *
  14  */
  15
  16 #include <linux/module.h>
  17 #include <linux/moduleparam.h>
  18 #include <linux/device.h>
  19 #include <linux/gpio.h>
  20
  21 #include <sound/core.h>
  22 #include <sound/pcm.h>
  23 #include <sound/soc.h>
  24 #include <sound/jack.h>
  25
  26 #include <asm/mach-types.h>
  27 #include <mach/audio.h>
  28 #include <linux/platform_data/asoc-palm27x.h>
  29
  30 static struct snd_soc_jack hs_jack;
  31
  32 /* Headphones jack detection DAPM pins */
  33 static struct snd_soc_jack_pin hs_jack_pins[] = {
  34         {
  35                 .pin    = "Headphone Jack",
  36                 .mask   = SND_JACK_HEADPHONE,
  37         },
  38 };
  39
  40 /* Headphones jack detection gpios */
  41 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
  42         [0] = {
  43                 /* gpio is set on per-platform basis */
  44                 .name           = "hp-gpio",
  45                 .report         = SND_JACK_HEADPHONE,
  46                 .debounce_time  = 200,
  47         },
  48 };
  49
  50 /* Palm27x machine dapm widgets */
  51 static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
  52         SND_SOC_DAPM_HP("Headphone Jack", NULL),
  53         SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
  54         SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
  55 };
  56
  57 /* PalmTX audio map */
  58 static const struct snd_soc_dapm_route audio_map[] = {
  59         /* headphone connected to HPOUTL, HPOUTR */
  60         {"Headphone Jack", NULL, "HPOUTL"},
  61         {"Headphone Jack", NULL, "HPOUTR"},
  62
  63         /* ext speaker connected to ROUT2, LOUT2 */
  64         {"Ext. Speaker", NULL, "LOUT2"},
  65         {"Ext. Speaker", NULL, "ROUT2"},
  66
  67         /* mic connected to MIC1 */
  68         {"MIC1", NULL, "Ext. Microphone"},
  69 };
  70
  71 static struct snd_soc_card palm27x_asoc;
  72
  73 static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
  74 {
  75         int err;
  76
  77         /* Jack detection API stuff */
  78         err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
  79                                     SND_JACK_HEADPHONE, &hs_jack, hs_jack_pins,
  80                                     ARRAY_SIZE(hs_jack_pins));
  81         if (err)
  82                 return err;
  83
  84         err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
  85                                 hs_jack_gpios);
  86
  87         return err;
  88 }
  89
  90 static struct snd_soc_dai_link palm27x_dai[] = {
  91 {
  92         .name = "AC97 HiFi",
  93         .stream_name = "AC97 HiFi",
  94         .cpu_dai_name = "pxa2xx-ac97",
  95         .codec_dai_name =  "wm9712-hifi",
  96         .codec_name = "wm9712-codec",
  97         .platform_name = "pxa-pcm-audio",
  98         .init = palm27x_ac97_init,
  99 },
 100 {
 101         .name = "AC97 Aux",
 102         .stream_name = "AC97 Aux",
 103         .cpu_dai_name = "pxa2xx-ac97-aux",
 104         .codec_dai_name = "wm9712-aux",
 105         .codec_name = "wm9712-codec",
 106         .platform_name = "pxa-pcm-audio",
 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");