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