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