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         {"Ext. Microphone", NULL, "MIC1"},
  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         struct snd_soc_codec *codec = rtd->codec;
  79         struct snd_soc_dapm_context *dapm = &codec->dapm;
  80         int err;
  81
  82         /* not connected pins */
  83         snd_soc_dapm_nc_pin(dapm, "OUT3");
  84         snd_soc_dapm_nc_pin(dapm, "MONOOUT");
  85         snd_soc_dapm_nc_pin(dapm, "LINEINL");
  86         snd_soc_dapm_nc_pin(dapm, "LINEINR");
  87         snd_soc_dapm_nc_pin(dapm, "PCBEEP");
  88         snd_soc_dapm_nc_pin(dapm, "PHONE");
  89         snd_soc_dapm_nc_pin(dapm, "MIC2");
  90
  91         /* Jack detection API stuff */
  92         err = snd_soc_jack_new(codec, "Headphone Jack",
  93                                 SND_JACK_HEADPHONE, &hs_jack);
  94         if (err)
  95                 return err;
  96
  97         err = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
  98                                 hs_jack_pins);
  99         if (err)
 100                 return err;
 101
 102         err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
 103                                 hs_jack_gpios);
 104
 105         return err;
 106 }
 107
 108 static struct snd_soc_dai_link palm27x_dai[] = {
 109 {
 110         .name = "AC97 HiFi",
 111         .stream_name = "AC97 HiFi",
 112         .cpu_dai_name = "pxa2xx-ac97",
 113         .codec_dai_name =  "wm9712-hifi",
 114         .codec_name = "wm9712-codec",
 115         .platform_name = "pxa-pcm-audio",
 116         .init = palm27x_ac97_init,
 117 },
 118 {
 119         .name = "AC97 Aux",
 120         .stream_name = "AC97 Aux",
 121         .cpu_dai_name = "pxa2xx-ac97-aux",
 122         .codec_dai_name = "wm9712-aux",
 123         .codec_name = "wm9712-codec",
 124         .platform_name = "pxa-pcm-audio",
 125 },
 126 };
 127
 128 static struct snd_soc_card palm27x_asoc = {
 129         .name = "Palm/PXA27x",
 130         .owner = THIS_MODULE,
 131         .dai_link = palm27x_dai,
 132         .num_links = ARRAY_SIZE(palm27x_dai),
 133         .dapm_widgets = palm27x_dapm_widgets,
 134         .num_dapm_widgets = ARRAY_SIZE(palm27x_dapm_widgets),
 135         .dapm_routes = audio_map,
 136         .num_dapm_routes = ARRAY_SIZE(audio_map)
 137 };
 138
 139 static int palm27x_asoc_probe(struct platform_device *pdev)
 140 {
 141         int ret;
 142
 143         if (!(machine_is_palmtx() || machine_is_palmt5() ||
 144                 machine_is_palmld() || machine_is_palmte2()))
 145                 return -ENODEV;
 146
 147         if (!pdev->dev.platform_data) {
 148                 dev_err(&pdev->dev, "please supply platform_data\n");
 149                 return -ENODEV;
 150         }
 151
 152         hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
 153                         (pdev->dev.platform_data))->jack_gpio;
 154
 155         palm27x_asoc.dev = &pdev->dev;
 156
 157         ret = snd_soc_register_card(&palm27x_asoc);
 158         if (ret)
 159                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 160                         ret);
 161         return ret;
 162 }
 163
 164 static int palm27x_asoc_remove(struct platform_device *pdev)
 165 {
 166         snd_soc_unregister_card(&palm27x_asoc);
 167         return 0;
 168 }
 169
 170 static struct platform_driver palm27x_wm9712_driver = {
 171         .probe          = palm27x_asoc_probe,
 172         .remove         = palm27x_asoc_remove,
 173         .driver         = {
 174                 .name           = "palm27x-asoc",
 175                 .owner          = THIS_MODULE,
 176                 .pm     = &snd_soc_pm_ops,
 177         },
 178 };
 179
 180 module_platform_driver(palm27x_wm9712_driver);
 181
 182 /* Module information */
 183 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 184 MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
 185 MODULE_LICENSE("GPL");